Attachment 18492 Details for Bug 15425 – Patches for v4-20-test (without removing unused stuff)

Patches for v4-20-test (without removing unused stuff)

bfixes-tmp420.txt (text/plain), 260.44 KB, created by Stefan Metzmacher on 2024-11-04 11:12:04 UTC

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Creator: Stefan Metzmacher

Created: 2024-11-04 11:12:04 UTC

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patch

obsolete

>From e2882d4740f9e5d71ac401e7e6c1987ea1379ec7 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Thu, 10 Oct 2024 15:08:01 +0200
>Subject: [PATCH 01/69] s4:torture/rpc: check that DOWNGRADE_DETECTED has no
> bits negotiated
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 36310650ee7a64603128139f512d3a4e039f8822)
>---
> source4/torture/rpc/netlogon_crypto.c | 2 ++
> 1 file changed, 2 insertions(+)
>
>diff --git a/source4/torture/rpc/netlogon_crypto.c b/source4/torture/rpc/netlogon_crypto.c
>index 85844604ee27..8defd439a888 100644
>--- a/source4/torture/rpc/netlogon_crypto.c
>+++ b/source4/torture/rpc/netlogon_crypto.c
>@@ -152,6 +152,8 @@ static bool test_ServerAuth3Crypto(struct dcerpc_pipe *p,
> 					      a.out.result,
> 					      NT_STATUS_DOWNGRADE_DETECTED,
> 					      "Unexpected status code");
>+		torture_assert_int_equal(tctx, negotiate_flags, 0,
>+					 "NT_STATUS_DOWNGRADE_DETECTED...");
> 		return false;
> 	}
> 	torture_assert_ntstatus_ok(tctx,
>-- 
>2.34.1
>
>
>From 6797e6f5ebc7f8fdd7082da674c141f626ca2667 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Thu, 10 Oct 2024 15:02:16 +0200
>Subject: [PATCH 02/69] s4:torture/rpc: without weak crypto we should require
> AES
>
>We should check that we can actually negotiated the strong AES
>crypto instead of just checking that NETLOGON_NEG_ARCFOUR is not
>there...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 3dcbc8eea5bc53a8332b3ad93ea4c3df99af7830)
>---
> source4/torture/rpc/netlogon_crypto.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
>diff --git a/source4/torture/rpc/netlogon_crypto.c b/source4/torture/rpc/netlogon_crypto.c
>index 8defd439a888..eec8a7531791 100644
>--- a/source4/torture/rpc/netlogon_crypto.c
>+++ b/source4/torture/rpc/netlogon_crypto.c
>@@ -169,8 +169,8 @@ static bool test_ServerAuth3Crypto(struct dcerpc_pipe *p,
> 
> 	if (!weak_crypto_allowed) {
> 		torture_assert(tctx,
>-			       (negotiate_flags & NETLOGON_NEG_ARCFOUR) == 0,
>-			       "Server should not announce RC4 support");
>+			       (negotiate_flags & NETLOGON_NEG_SUPPORTS_AES),
>+			       "Server negotiate AES support");
> 	}
> 
> 	/* Prove that requesting a challenge again won't break it */
>-- 
>2.34.1
>
>
>From b6fca161f595b103946716eafa993e1e9dcf8ab5 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 19 Jul 2023 12:55:33 +0200
>Subject: [PATCH 03/69] s3:rpc_server/netlogon: correctly negotiate flags in
> ServerAuthenticate2/3
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit b27661f832cc4c56cc582cf7041d90f178736ef7)
>---
> source3/rpc_server/netlogon/srv_netlog_nt.c | 39 ++++++++++++---------
> 1 file changed, 22 insertions(+), 17 deletions(-)
>
>diff --git a/source3/rpc_server/netlogon/srv_netlog_nt.c b/source3/rpc_server/netlogon/srv_netlog_nt.c
>index fa3e597fa8e4..0fb0371c79bd 100644
>--- a/source3/rpc_server/netlogon/srv_netlog_nt.c
>+++ b/source3/rpc_server/netlogon/srv_netlog_nt.c
>@@ -886,6 +886,7 @@ NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
> 	/* r->in.negotiate_flags is an aliased pointer to r->out.negotiate_flags,
> 	 * so use a copy to avoid destroying the client values. */
> 	uint32_t in_neg_flags = *r->in.negotiate_flags;
>+	uint32_t neg_flags = 0;
> 	const char *fn;
> 	struct loadparm_context *lp_ctx = p->dce_call->conn->dce_ctx->lp_ctx;
> 	struct dom_sid sid;
>@@ -902,7 +903,6 @@ NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
> 	 * an error or not.
> 	 */
> 
>-	/* 0x000001ff */
> 	srv_flgs = NETLOGON_NEG_ACCOUNT_LOCKOUT |
> 		   NETLOGON_NEG_PERSISTENT_SAMREPL |
> 		   NETLOGON_NEG_ARCFOUR |
>@@ -912,20 +912,10 @@ NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
> 		   NETLOGON_NEG_MULTIPLE_SIDS |
> 		   NETLOGON_NEG_REDO |
> 		   NETLOGON_NEG_PASSWORD_CHANGE_REFUSAL |
>-		   NETLOGON_NEG_PASSWORD_SET2;
>-
>-	/* Ensure we support strong (128-bit) keys. */
>-	if (in_neg_flags & NETLOGON_NEG_STRONG_KEYS) {
>-		srv_flgs |= NETLOGON_NEG_STRONG_KEYS;
>-	}
>-
>-	if (in_neg_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-		srv_flgs |= NETLOGON_NEG_SUPPORTS_AES;
>-	}
>-
>-	if (in_neg_flags & NETLOGON_NEG_SCHANNEL) {
>-		srv_flgs |= NETLOGON_NEG_SCHANNEL;
>-	}
>+		   NETLOGON_NEG_PASSWORD_SET2 |
>+		   NETLOGON_NEG_STRONG_KEYS |
>+		   NETLOGON_NEG_SUPPORTS_AES |
>+		   NETLOGON_NEG_SCHANNEL;
> 
> 	/*
> 	 * Support authentication of trusted domains.
>@@ -947,6 +937,8 @@ NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
> 		srv_flgs &= ~NETLOGON_NEG_ARCFOUR;
> 	}
> 
>+	neg_flags = in_neg_flags & srv_flgs;
>+
> 	switch (dce_call->pkt.u.request.opnum) {
> 		case NDR_NETR_SERVERAUTHENTICATE:
> 			fn = "_netr_ServerAuthenticate";
>@@ -961,6 +953,19 @@ NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
> 			return NT_STATUS_INTERNAL_ERROR;
> 	}
> 
>+	if (lp_weak_crypto() == SAMBA_WEAK_CRYPTO_DISALLOWED) {
>+		if (!(neg_flags & NETLOGON_NEG_SUPPORTS_AES)) {
>+			DBG_NOTICE("%s: no AES support negotiated from client %s\n",
>+				   fn, r->in.computer_name);
>+			/*
>+			 * Here we match Windows 2012 and return no flags.
>+			 */
>+			neg_flags = 0;
>+			status = NT_STATUS_DOWNGRADE_DETECTED;
>+			goto out;
>+		}
>+	}
>+
> 	/* We use this as the key to store the creds: */
> 	/* r->in.computer_name */
> 
>@@ -1000,7 +1005,7 @@ NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
> 					   &mach_pwd,
> 					   r->in.credentials,
> 					   r->out.return_credentials,
>-					   srv_flgs);
>+					   neg_flags);
> 	if (!creds) {
> 		DEBUG(0,("%s: netlogon_creds_server_check failed. Rejecting auth "
> 			"request from client %s machine account %s\n",
>@@ -1032,7 +1037,7 @@ NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
> 
>   out:
> 
>-	*r->out.negotiate_flags = srv_flgs;
>+	*r->out.negotiate_flags = neg_flags;
> 	return status;
> }
> 
>-- 
>2.34.1
>
>
>From fbbef7e6c472f89e943c95d68e181e4cc2d963e9 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Thu, 10 Oct 2024 12:34:33 +0200
>Subject: [PATCH 04/69] s3:rpc_server/netlogon: if we require AES there's no
> need to remove the ARCFOUR flag
>
>With SAMBA_WEAK_CRYPTO_DISALLOWED we will return DOWNGRADE_DETECTED with negotiate_flags = 0,
>if AES was not negotiated...
>
>And if AES was negotiated there's no harm in returning the ARCFOUR
>flag...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit e5bc5ee3e04138b10c0630640469a08fad847e56)
>---
> source3/rpc_server/netlogon/srv_netlog_nt.c | 19 ++++++++++++-------
> 1 file changed, 12 insertions(+), 7 deletions(-)
>
>diff --git a/source3/rpc_server/netlogon/srv_netlog_nt.c b/source3/rpc_server/netlogon/srv_netlog_nt.c
>index 0fb0371c79bd..47c08bcd516e 100644
>--- a/source3/rpc_server/netlogon/srv_netlog_nt.c
>+++ b/source3/rpc_server/netlogon/srv_netlog_nt.c
>@@ -917,6 +917,18 @@ NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
> 		   NETLOGON_NEG_SUPPORTS_AES |
> 		   NETLOGON_NEG_SCHANNEL;
> 
>+	/*
>+	 * With SAMBA_WEAK_CRYPTO_DISALLOWED we will return DOWNGRADE_DETECTED
>+	 * with negotiate_flags = 0 below, if NETLOGON_NEG_SUPPORTS_AES was not
>+	 * negotiated...
>+	 *
>+	 * And if NETLOGON_NEG_SUPPORTS_AES was negotiated there's no harm in
>+	 * returning the NETLOGON_NEG_ARCFOUR flag too...
>+	 *
>+	 * So there's no reason to remove NETLOGON_NEG_ARCFOUR nor
>+	 * NETLOGON_NEG_STRONG_KEYS from srv_flgs...
>+	 */
>+
> 	/*
> 	 * Support authentication of trusted domains.
> 	 *
>@@ -930,13 +942,6 @@ NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
> 			    NETLOGON_NEG_NEUTRALIZE_NT4_EMULATION;
> 	}
> 
>-	/*
>-	 * If weak crypto is disabled, do not announce that we support RC4.
>-	 */
>-	if (lp_weak_crypto() == SAMBA_WEAK_CRYPTO_DISALLOWED) {
>-		srv_flgs &= ~NETLOGON_NEG_ARCFOUR;
>-	}
>-
> 	neg_flags = in_neg_flags & srv_flgs;
> 
> 	switch (dce_call->pkt.u.request.opnum) {
>-- 
>2.34.1
>
>
>From e540146f52feb8259d86eebe2d8e0396d675be46 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Thu, 10 Oct 2024 12:34:33 +0200
>Subject: [PATCH 05/69] s4:rpc_server/netlogon: if we require AES there's no
> need to remove the ARCFOUR flag
>
>With SAMBA_WEAK_CRYPTO_DISALLOWED dcesrv_netr_ServerAuthenticate3_check_downgrade()
>will return DOWNGRADE_DETECTED with negotiate_flags = 0, if AES was not
>negotiated...
>
>And if AES was negotiated there's no harm in returning the ARCFOUR
>flag...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit a0bc372dee68ad255da005d2e2078da754bbef2a)
>---
> source4/rpc_server/netlogon/dcerpc_netlogon.c | 15 ++++++++++-----
> 1 file changed, 10 insertions(+), 5 deletions(-)
>
>diff --git a/source4/rpc_server/netlogon/dcerpc_netlogon.c b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>index 457af26fb5c2..6a1740dc83ed 100644
>--- a/source4/rpc_server/netlogon/dcerpc_netlogon.c
>+++ b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>@@ -497,12 +497,17 @@ static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
> 		       NETLOGON_NEG_AUTHENTICATED_RPC;
> 
> 	/*
>-	 * If weak crypto is disabled, do not announce that we support RC4.
>+	 * With SAMBA_WEAK_CRYPTO_DISALLOWED
>+	 * dcesrv_netr_ServerAuthenticate3_check_downgrade() will return
>+	 * DOWNGRADE_DETECTED with negotiate_flags = 0,
>+	 * if NETLOGON_NEG_SUPPORTS_AES was not negotiated...
>+	 *
>+	 * And if NETLOGON_NEG_SUPPORTS_AES was negotiated there's no harm in
>+	 * returning the NETLOGON_NEG_ARCFOUR flag too...
>+	 *
>+	 * So there's no reason to remove NETLOGON_NEG_ARCFOUR nor
>+	 * NETLOGON_NEG_STRONG_KEYS from server_flags...
> 	 */
>-	if (lpcfg_weak_crypto(dce_call->conn->dce_ctx->lp_ctx) ==
>-	    SAMBA_WEAK_CRYPTO_DISALLOWED) {
>-		server_flags &= ~NETLOGON_NEG_ARCFOUR;
>-	}
> 
> 	negotiate_flags = *r->in.negotiate_flags & server_flags;
> 
>-- 
>2.34.1
>
>
>From e1f45b55c84a16e152ece9cea66953f365f2ab71 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 19 Jul 2023 09:27:48 +0200
>Subject: [PATCH 06/69] netlogon.idl: the capabilities in query_level=2 are the
> ones send by the client
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 86176598eee4c83dc63a9dac163f32c886477129)
>---
> librpc/idl/netlogon.idl | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/librpc/idl/netlogon.idl b/librpc/idl/netlogon.idl
>index 383c7b567e30..ed75fe3797af 100644
>--- a/librpc/idl/netlogon.idl
>+++ b/librpc/idl/netlogon.idl
>@@ -1236,7 +1236,7 @@ interface netlogon
> 	/* Function 0x15 */
> 	typedef [switch_type(uint32)] union {
> 		[case(1)] netr_NegotiateFlags server_capabilities;
>-		[case(2)] netr_NegotiateFlags server_capabilities;
>+		[case(2)] netr_NegotiateFlags requested_flags;
> 	} netr_Capabilities;
> 
> 	NTSTATUS netr_LogonGetCapabilities(
>-- 
>2.34.1
>
>
>From 7948560cc65293a06060aad1ba29ad37ee334c81 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 19:06:59 +0200
>Subject: [PATCH 07/69] libcli/auth: remove unused
> netlogon_creds_client_init_session_key()
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit cf0e07a3d2a085d31f7d682633af9ec57c155e57)
>---
> libcli/auth/credentials.c | 19 -------------------
> libcli/auth/proto.h       |  2 --
> 2 files changed, 21 deletions(-)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index 84838be6e73c..d18759604480 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -563,25 +563,6 @@ struct netlogon_creds_CredentialState *netlogon_creds_client_init(TALLOC_CTX *me
> 	return creds;
> }
> 
>-/*
>-  initialise the credentials structure with only a session key.  The caller better know what they are doing!
>- */
>-
>-struct netlogon_creds_CredentialState *netlogon_creds_client_init_session_key(TALLOC_CTX *mem_ctx,
>-									      const uint8_t session_key[16])
>-{
>-	struct netlogon_creds_CredentialState *creds;
>-
>-	creds = talloc_zero(mem_ctx, struct netlogon_creds_CredentialState);
>-	if (!creds) {
>-		return NULL;
>-	}
>-
>-	memcpy(creds->session_key, session_key, 16);
>-
>-	return creds;
>-}
>-
> /*
>   step the credentials to the next element in the chain, updating the
>   current client and server credentials and the seed
>diff --git a/libcli/auth/proto.h b/libcli/auth/proto.h
>index b202542068d1..9f6a8b68b8b1 100644
>--- a/libcli/auth/proto.h
>+++ b/libcli/auth/proto.h
>@@ -47,8 +47,6 @@ struct netlogon_creds_CredentialState *netlogon_creds_client_init(TALLOC_CTX *me
> 								  const struct samr_Password *machine_password,
> 								  struct netr_Credential *initial_credential,
> 								  uint32_t negotiate_flags);
>-struct netlogon_creds_CredentialState *netlogon_creds_client_init_session_key(TALLOC_CTX *mem_ctx,
>-									      const uint8_t session_key[16]);
> NTSTATUS
> netlogon_creds_client_authenticator(struct netlogon_creds_CredentialState *creds,
> 				    struct netr_Authenticator *next);
>-- 
>2.34.1
>
>
>From ce948067f76bada1043cacb8c6cfc86aae32b885 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 19 Jul 2023 17:43:00 +0200
>Subject: [PATCH 08/69] libcli/auth: make use of
> netlogon_creds_cli_store_internal() in netlogon_creds_cli_auth_srvauth_done()
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 69cb9aea67de0613f467f7ce2d460364ff2be241)
>---
> libcli/auth/netlogon_creds_cli.c | 19 ++-----------------
> 1 file changed, 2 insertions(+), 17 deletions(-)
>
>diff --git a/libcli/auth/netlogon_creds_cli.c b/libcli/auth/netlogon_creds_cli.c
>index 118c81f6246b..154906342b7b 100644
>--- a/libcli/auth/netlogon_creds_cli.c
>+++ b/libcli/auth/netlogon_creds_cli.c
>@@ -1417,9 +1417,6 @@ static void netlogon_creds_cli_auth_srvauth_done(struct tevent_req *subreq)
> 	NTSTATUS status;
> 	NTSTATUS result;
> 	bool ok;
>-	enum ndr_err_code ndr_err;
>-	DATA_BLOB blob;
>-	TDB_DATA data;
> 	bool downgraded;
> 
> 	if (state->try_auth3) {
>@@ -1518,20 +1515,8 @@ static void netlogon_creds_cli_auth_srvauth_done(struct tevent_req *subreq)
> 		return;
> 	}
> 
>-	ndr_err = ndr_push_struct_blob(&blob, state, state->creds,
>-		(ndr_push_flags_fn_t)ndr_push_netlogon_creds_CredentialState);
>-	if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
>-		status = ndr_map_error2ntstatus(ndr_err);
>-		tevent_req_nterror(req, status);
>-		return;
>-	}
>-
>-	data.dptr = blob.data;
>-	data.dsize = blob.length;
>-
>-	status = dbwrap_store(state->context->db.ctx,
>-			      state->context->db.key_data,
>-			      data, TDB_REPLACE);
>+	status = netlogon_creds_cli_store_internal(state->context,
>+						   state->creds);
> 	if (tevent_req_nterror(req, status)) {
> 		return;
> 	}
>-- 
>2.34.1
>
>
>From 0a61edaf6b77b9cf7607fa555f17f9a36f36918c Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 15:03:21 +0200
>Subject: [PATCH 09/69] libcli/auth: don't allow any unexpected upgrades of
> negotiate_flags
>
>Only remove the unsupported flags from state->current_flags for
>the next try...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit a9040c8ce76cb9911c4c0c5d623cc479e49f460d)
>---
> libcli/auth/netlogon_creds_cli.c | 12 +++++++-----
> 1 file changed, 7 insertions(+), 5 deletions(-)
>
>diff --git a/libcli/auth/netlogon_creds_cli.c b/libcli/auth/netlogon_creds_cli.c
>index 154906342b7b..1a1966207511 100644
>--- a/libcli/auth/netlogon_creds_cli.c
>+++ b/libcli/auth/netlogon_creds_cli.c
>@@ -1478,14 +1478,16 @@ static void netlogon_creds_cli_auth_srvauth_done(struct tevent_req *subreq)
> 	}
> 
> 	if (NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
>-		uint32_t tmp_flags = state->context->client.proposed_flags;
>-		if ((state->current_flags == tmp_flags) &&
>-		    (state->creds->negotiate_flags != tmp_flags))
>-		{
>+		uint32_t prop_f = state->context->client.proposed_flags;
>+		uint32_t cli_f = state->current_flags;
>+		uint32_t srv_f = state->creds->negotiate_flags;
>+		uint32_t nego_f = cli_f & srv_f;
>+
>+		if (cli_f == prop_f && nego_f != prop_f) {
> 			/*
> 			 * lets retry with the negotiated flags
> 			 */
>-			state->current_flags = state->creds->negotiate_flags;
>+			state->current_flags = nego_f;
> 			netlogon_creds_cli_auth_challenge_start(req);
> 			return;
> 		}
>-- 
>2.34.1
>
>
>From 7f843bb7634b18bff02c22e444dde2dd142b53df Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Thu, 10 Oct 2024 12:31:18 +0200
>Subject: [PATCH 10/69] libcli/auth: if we require aes we don't need to require
> arcfour nor strong key
>
>But we can send arcfour and strong key on the wire and don't need to
>remove them from the proposed flags.
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 3da40f1c6818550eb08a6d7d680c213c3f1d0649)
>---
> libcli/auth/netlogon_creds_cli.c | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
>
>diff --git a/libcli/auth/netlogon_creds_cli.c b/libcli/auth/netlogon_creds_cli.c
>index 1a1966207511..f4b3560f42ce 100644
>--- a/libcli/auth/netlogon_creds_cli.c
>+++ b/libcli/auth/netlogon_creds_cli.c
>@@ -502,14 +502,16 @@ NTSTATUS netlogon_creds_cli_context_global(struct loadparm_context *lp_ctx,
> 	 * require AES.
> 	 */
> 	if (lpcfg_weak_crypto(lp_ctx) == SAMBA_WEAK_CRYPTO_DISALLOWED) {
>-		required_flags &= ~NETLOGON_NEG_ARCFOUR;
> 		required_flags |= NETLOGON_NEG_SUPPORTS_AES;
>-		proposed_flags &= ~NETLOGON_NEG_ARCFOUR;
>-		proposed_flags |= NETLOGON_NEG_SUPPORTS_AES;
> 	}
> 
> 	proposed_flags |= required_flags;
> 
>+	if (required_flags & NETLOGON_NEG_SUPPORTS_AES) {
>+		required_flags &= ~NETLOGON_NEG_ARCFOUR;
>+		required_flags &= ~NETLOGON_NEG_STRONG_KEYS;
>+	}
>+
> 	if (seal_secure_channel) {
> 		auth_level = DCERPC_AUTH_LEVEL_PRIVACY;
> 	} else {
>-- 
>2.34.1
>
>
>From dff7c0f3dbd5b4c21641134d14e20e73743d25b0 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 14:25:19 +0200
>Subject: [PATCH 11/69] libcli/auth: use a LogonControl after a
> LogonGetCapabilities downgrade
>
>If LogonGetCapabilities was downgraded by an DCERPC Fault, we
>rely on the schannel message ordering to detect failures.
>
>Instead of letting any real winbindd request trigger this,
>we do it directly in netlogon_creds_cli_check() with
>a LogonControl that is also used for 'wbinfo --ping-dc'.
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 276137e950696fbf36450dceebd6c0250c6242d0)
>---
> libcli/auth/netlogon_creds_cli.c | 76 +++++++++++++++++++++++++++++++-
> 1 file changed, 74 insertions(+), 2 deletions(-)
>
>diff --git a/libcli/auth/netlogon_creds_cli.c b/libcli/auth/netlogon_creds_cli.c
>index f4b3560f42ce..935697be0096 100644
>--- a/libcli/auth/netlogon_creds_cli.c
>+++ b/libcli/auth/netlogon_creds_cli.c
>@@ -1591,6 +1591,8 @@ struct netlogon_creds_cli_check_state {
> 	struct netlogon_creds_CredentialState *creds;
> 	struct netr_Authenticator req_auth;
> 	struct netr_Authenticator rep_auth;
>+
>+	union netr_CONTROL_QUERY_INFORMATION ctrl_info;
> };
> 
> static void netlogon_creds_cli_check_cleanup(struct tevent_req *req,
>@@ -1709,6 +1711,8 @@ static void netlogon_creds_cli_check_cleanup(struct tevent_req *req,
> 	TALLOC_FREE(state->creds);
> }
> 
>+static void netlogon_creds_cli_check_control_do(struct tevent_req *req);
>+
> static void netlogon_creds_cli_check_caps(struct tevent_req *subreq)
> {
> 	struct tevent_req *req =
>@@ -1769,9 +1773,10 @@ static void netlogon_creds_cli_check_caps(struct tevent_req *subreq)
> 		 * we should detect a faked NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE
> 		 * with the next request as the sequence number processing
> 		 * gets out of sync.
>+		 *
>+		 * So we'll do a LogonControl message to check that...
> 		 */
>-		netlogon_creds_cli_check_cleanup(req, status);
>-		tevent_req_done(req);
>+		netlogon_creds_cli_check_control_do(req);
> 		return;
> 	}
> 	if (tevent_req_nterror(req, status)) {
>@@ -1854,6 +1859,73 @@ static void netlogon_creds_cli_check_caps(struct tevent_req *subreq)
> 	tevent_req_done(req);
> }
> 
>+static void netlogon_creds_cli_check_control_done(struct tevent_req *subreq);
>+
>+static void netlogon_creds_cli_check_control_do(struct tevent_req *req)
>+{
>+	struct netlogon_creds_cli_check_state *state =
>+		tevent_req_data(req,
>+		struct netlogon_creds_cli_check_state);
>+	struct tevent_req *subreq = NULL;
>+
>+	/*
>+	 * In case we got a downgrade based on a FAULT
>+	 * we use a LogonControl that is supposed to
>+	 * return WERR_NOT_SUPPORTED (without a DCERPC FAULT)
>+	 * to verify that the connection is still ok and didn't
>+	 * get out of sync.
>+	 */
>+	subreq = dcerpc_netr_LogonControl_send(state,
>+					       state->ev,
>+					       state->binding_handle,
>+					       state->srv_name_slash,
>+					       NETLOGON_CONTROL_QUERY,
>+					       2,
>+					       &state->ctrl_info);
>+	if (tevent_req_nomem(subreq, req)) {
>+		return;
>+	}
>+
>+	tevent_req_set_callback(subreq,
>+				netlogon_creds_cli_check_control_done,
>+				req);
>+	return;
>+}
>+
>+static void netlogon_creds_cli_check_control_done(struct tevent_req *subreq)
>+{
>+	struct tevent_req *req =
>+		tevent_req_callback_data(subreq,
>+		struct tevent_req);
>+	struct netlogon_creds_cli_check_state *state =
>+		tevent_req_data(req,
>+		struct netlogon_creds_cli_check_state);
>+	NTSTATUS status;
>+	WERROR result;
>+
>+	status = dcerpc_netr_LogonControl_recv(subreq, state, &result);
>+	TALLOC_FREE(subreq);
>+	if (tevent_req_nterror(req, status)) {
>+		/*
>+		 * We want to delete the creds,
>+		 * so we pass NT_STATUS_DOWNGRADE_DETECTED
>+		 * to netlogon_creds_cli_check_cleanup()
>+		 */
>+		status = NT_STATUS_DOWNGRADE_DETECTED;
>+		netlogon_creds_cli_check_cleanup(req, status);
>+		return;
>+	}
>+
>+	if (!W_ERROR_EQUAL(result, WERR_NOT_SUPPORTED)) {
>+		status = NT_STATUS_DOWNGRADE_DETECTED;
>+		tevent_req_nterror(req, status);
>+		netlogon_creds_cli_check_cleanup(req, status);
>+		return;
>+	}
>+
>+	tevent_req_done(req);
>+}
>+
> NTSTATUS netlogon_creds_cli_check_recv(struct tevent_req *req,
> 				       union netr_Capabilities *capabilities)
> {
>-- 
>2.34.1
>
>
>From cd4a084c1447938720f5d55d344b10db5601d717 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 13:43:36 +0200
>Subject: [PATCH 12/69] libcli/auth: use netr_LogonGetCapabilities
> query_level=2 to verify the proposed capabilities
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 25a2105ca7816c47a9c4a7fded88a922e4ccf88b)
>---
> libcli/auth/netlogon_creds_cli.c | 159 +++++++++++++++++++++++++++++--
> 1 file changed, 152 insertions(+), 7 deletions(-)
>
>diff --git a/libcli/auth/netlogon_creds_cli.c b/libcli/auth/netlogon_creds_cli.c
>index 935697be0096..40a40cb99aed 100644
>--- a/libcli/auth/netlogon_creds_cli.c
>+++ b/libcli/auth/netlogon_creds_cli.c
>@@ -1215,6 +1215,7 @@ struct netlogon_creds_cli_auth_state {
> 	struct netlogon_creds_CredentialState *creds;
> 	struct netr_Credential client_credential;
> 	struct netr_Credential server_credential;
>+	uint32_t negotiate_flags;
> 	uint32_t rid;
> 	bool try_auth3;
> 	bool try_auth2;
>@@ -1360,6 +1361,17 @@ static void netlogon_creds_cli_auth_challenge_done(struct tevent_req *subreq)
> 	}
> 
> 	if (state->try_auth3) {
>+		/*
>+		 * We always need to send our proposed flags,
>+		 * even if state->current_flags we passed to
>+		 * netlogon_creds_client_init() is already downgraded,
>+		 *
>+		 * An old server will just ignore the bits it doesn't
>+		 * know about, but LogonGetCapabilities(level=2) will
>+		 * report what we proposed.
>+		 */
>+		state->negotiate_flags = state->context->client.proposed_flags;
>+
> 		subreq = dcerpc_netr_ServerAuthenticate3_send(state, state->ev,
> 						state->binding_handle,
> 						state->srv_name_slash,
>@@ -1368,12 +1380,22 @@ static void netlogon_creds_cli_auth_challenge_done(struct tevent_req *subreq)
> 						state->context->client.computer,
> 						&state->client_credential,
> 						&state->server_credential,
>-						&state->creds->negotiate_flags,
>+						&state->negotiate_flags,
> 						&state->rid);
> 		if (tevent_req_nomem(subreq, req)) {
> 			return;
> 		}
> 	} else if (state->try_auth2) {
>+		/*
>+		 * We always need to send our proposed flags,
>+		 * even if state->current_flags we passed to
>+		 * netlogon_creds_client_init() is already downgraded,
>+		 *
>+		 * An old server will just ignore the bits it doesn't
>+		 * know about, but LogonGetCapabilities(level=2) will
>+		 * report what we proposed.
>+		 */
>+		state->negotiate_flags = state->context->client.proposed_flags;
> 		state->rid = 0;
> 
> 		subreq = dcerpc_netr_ServerAuthenticate2_send(state, state->ev,
>@@ -1384,11 +1406,12 @@ static void netlogon_creds_cli_auth_challenge_done(struct tevent_req *subreq)
> 						state->context->client.computer,
> 						&state->client_credential,
> 						&state->server_credential,
>-						&state->creds->negotiate_flags);
>+						&state->negotiate_flags);
> 		if (tevent_req_nomem(subreq, req)) {
> 			return;
> 		}
> 	} else {
>+		state->negotiate_flags = 0;
> 		state->rid = 0;
> 
> 		subreq = dcerpc_netr_ServerAuthenticate_send(state, state->ev,
>@@ -1467,7 +1490,7 @@ static void netlogon_creds_cli_auth_srvauth_done(struct tevent_req *subreq)
> 	}
> 
> 	downgraded = netlogon_creds_cli_downgraded(
>-			state->creds->negotiate_flags,
>+			state->negotiate_flags,
> 			state->context->client.proposed_flags,
> 			state->context->client.required_flags);
> 	if (downgraded) {
>@@ -1482,7 +1505,7 @@ static void netlogon_creds_cli_auth_srvauth_done(struct tevent_req *subreq)
> 	if (NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
> 		uint32_t prop_f = state->context->client.proposed_flags;
> 		uint32_t cli_f = state->current_flags;
>-		uint32_t srv_f = state->creds->negotiate_flags;
>+		uint32_t srv_f = state->negotiate_flags;
> 		uint32_t nego_f = cli_f & srv_f;
> 
> 		if (cli_f == prop_f && nego_f != prop_f) {
>@@ -1519,6 +1542,22 @@ static void netlogon_creds_cli_auth_srvauth_done(struct tevent_req *subreq)
> 		return;
> 	}
> 
>+	if (state->current_flags == state->context->client.proposed_flags) {
>+		/*
>+		 * Without a downgrade in the crypto we proposed
>+		 * we can adjust the otherwise downgraded flags
>+		 * before storing.
>+		 */
>+		state->creds->negotiate_flags &= state->negotiate_flags;
>+	} else if (state->current_flags != state->negotiate_flags) {
>+		/*
>+		 * We downgraded our crypto once, we should not
>+		 * allow any additional downgrade!
>+		 */
>+		tevent_req_nterror(req, NT_STATUS_DOWNGRADE_DETECTED);
>+		return;
>+	}
>+
> 	status = netlogon_creds_cli_store_internal(state->context,
> 						   state->creds);
> 	if (tevent_req_nterror(req, status)) {
>@@ -1587,6 +1626,7 @@ struct netlogon_creds_cli_check_state {
> 	char *srv_name_slash;
> 
> 	union netr_Capabilities caps;
>+	union netr_Capabilities client_caps;
> 
> 	struct netlogon_creds_CredentialState *creds;
> 	struct netr_Authenticator req_auth;
>@@ -1597,7 +1637,8 @@ struct netlogon_creds_cli_check_state {
> 
> static void netlogon_creds_cli_check_cleanup(struct tevent_req *req,
> 					     NTSTATUS status);
>-static void netlogon_creds_cli_check_caps(struct tevent_req *subreq);
>+static void netlogon_creds_cli_check_negotiate_caps(struct tevent_req *subreq);
>+static void netlogon_creds_cli_check_client_caps(struct tevent_req *subreq);
> 
> struct tevent_req *netlogon_creds_cli_check_send(TALLOC_CTX *mem_ctx,
> 				struct tevent_context *ev,
>@@ -1681,7 +1722,7 @@ struct tevent_req *netlogon_creds_cli_check_send(TALLOC_CTX *mem_ctx,
> 	}
> 
> 	tevent_req_set_callback(subreq,
>-				netlogon_creds_cli_check_caps,
>+				netlogon_creds_cli_check_negotiate_caps,
> 				req);
> 
> 	return req;
>@@ -1713,7 +1754,7 @@ static void netlogon_creds_cli_check_cleanup(struct tevent_req *req,
> 
> static void netlogon_creds_cli_check_control_do(struct tevent_req *req);
> 
>-static void netlogon_creds_cli_check_caps(struct tevent_req *subreq)
>+static void netlogon_creds_cli_check_negotiate_caps(struct tevent_req *subreq)
> {
> 	struct tevent_req *req =
> 		tevent_req_callback_data(subreq,
>@@ -1856,6 +1897,110 @@ static void netlogon_creds_cli_check_caps(struct tevent_req *subreq)
> 		return;
> 	}
> 
>+	/*
>+	 * Now try to verify our client proposed flags
>+	 * arrived at the server, using query_level = 2
>+	 */
>+
>+	status = netlogon_creds_client_authenticator(state->creds,
>+						     &state->req_auth);
>+	if (tevent_req_nterror(req, status)) {
>+		return;
>+	}
>+	ZERO_STRUCT(state->rep_auth);
>+
>+	subreq = dcerpc_netr_LogonGetCapabilities_send(state, state->ev,
>+						state->binding_handle,
>+						state->srv_name_slash,
>+						state->context->client.computer,
>+						&state->req_auth,
>+						&state->rep_auth,
>+						2,
>+						&state->client_caps);
>+	if (tevent_req_nomem(subreq, req)) {
>+		return;
>+	}
>+
>+	tevent_req_set_callback(subreq,
>+				netlogon_creds_cli_check_client_caps,
>+				req);
>+	return;
>+}
>+
>+static void netlogon_creds_cli_check_client_caps(struct tevent_req *subreq)
>+{
>+	struct tevent_req *req =
>+		tevent_req_callback_data(subreq,
>+		struct tevent_req);
>+	struct netlogon_creds_cli_check_state *state =
>+		tevent_req_data(req,
>+		struct netlogon_creds_cli_check_state);
>+	NTSTATUS status;
>+	NTSTATUS result;
>+	bool ok;
>+
>+	status = dcerpc_netr_LogonGetCapabilities_recv(subreq, state,
>+						       &result);
>+	TALLOC_FREE(subreq);
>+	if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_BAD_STUB_DATA)) {
>+		/*
>+		 * unpatched Samba server, see
>+		 * https://bugzilla.samba.org/show_bug.cgi?id=15418
>+		 */
>+		status = NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE;
>+	}
>+	if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE)) {
>+		/*
>+		 * Here we know the negotiated flags were already
>+		 * verified with query_level=1, which means
>+		 * the server supported NETLOGON_NEG_SUPPORTS_AES
>+		 * and also NETLOGON_NEG_AUTHENTICATED_RPC
>+		 *
>+		 * As we're using DCERPC_AUTH_TYPE_SCHANNEL with
>+		 * DCERPC_AUTH_LEVEL_INTEGRITY or DCERPC_AUTH_LEVEL_PRIVACY
>+		 * we should detect a faked
>+		 * NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE
>+		 * with the next request as the sequence number processing
>+		 * gets out of sync.
>+		 *
>+		 * So we'll do a LogonControl message to check that...
>+		 */
>+		netlogon_creds_cli_check_control_do(req);
>+		return;
>+	}
>+	if (tevent_req_nterror(req, status)) {
>+		netlogon_creds_cli_check_cleanup(req, status);
>+		return;
>+	}
>+
>+	ok = netlogon_creds_client_check(state->creds,
>+					 &state->rep_auth.cred);
>+	if (!ok) {
>+		status = NT_STATUS_ACCESS_DENIED;
>+		tevent_req_nterror(req, status);
>+		netlogon_creds_cli_check_cleanup(req, status);
>+		return;
>+	}
>+	if (tevent_req_nterror(req, result)) {
>+		netlogon_creds_cli_check_cleanup(req, result);
>+		return;
>+	}
>+
>+	if (state->client_caps.requested_flags !=
>+	    state->context->client.proposed_flags)
>+	{
>+		status = NT_STATUS_DOWNGRADE_DETECTED;
>+		tevent_req_nterror(req, status);
>+		netlogon_creds_cli_check_cleanup(req, status);
>+		return;
>+	}
>+
>+	status = netlogon_creds_cli_store_internal(state->context,
>+						   state->creds);
>+	if (tevent_req_nterror(req, status)) {
>+		return;
>+	}
>+
> 	tevent_req_done(req);
> }
> 
>-- 
>2.34.1
>
>
>From 9fa3e054334151ae7e93a1cc6194b10e7d5f33fd Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 16:15:46 +0200
>Subject: [PATCH 13/69] s4:librpc/rpc: do LogonControl after
> LogonGetCapabilities downgrade
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 24de5d1cbd25fabae6b01565907b53f5e51ea06d)
>---
> source4/librpc/rpc/dcerpc_schannel.c | 76 ++++++++++++++++++++++++----
> 1 file changed, 66 insertions(+), 10 deletions(-)
>
>diff --git a/source4/librpc/rpc/dcerpc_schannel.c b/source4/librpc/rpc/dcerpc_schannel.c
>index ebc7a5e8d374..3f69b849bb8d 100644
>--- a/source4/librpc/rpc/dcerpc_schannel.c
>+++ b/source4/librpc/rpc/dcerpc_schannel.c
>@@ -407,6 +407,7 @@ struct auth_schannel_state {
> 	struct netr_Authenticator return_auth;
> 	union netr_Capabilities capabilities;
> 	struct netr_LogonGetCapabilities c;
>+	union netr_CONTROL_QUERY_INFORMATION ctrl_info;
> };
> 
> 
>@@ -503,6 +504,8 @@ static void continue_bind_auth(struct composite_context *ctx)
> 	composite_done(c);
> }
> 
>+static void continue_logon_control_do(struct composite_context *c);
>+
> /*
>   Stage 4 of auth_schannel: Get the Logon Capabilities and verify them.
> */
>@@ -519,13 +522,18 @@ static void continue_get_capabilities(struct tevent_req *subreq)
> 	TALLOC_FREE(subreq);
> 	if (NT_STATUS_EQUAL(c->status, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE)) {
> 		if (s->creds_state->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-			composite_error(c, NT_STATUS_INVALID_NETWORK_RESPONSE);
>+			DBG_ERR("%s: NT_STATUS_DOWNGRADE_DETECTED\n", __location__);
>+			composite_error(c, NT_STATUS_DOWNGRADE_DETECTED);
> 			return;
>-		} else {
>-			/* This is probably NT */
>-			composite_done(c);
>+		} else if (s->creds_state->negotiate_flags & NETLOGON_NEG_STRONG_KEYS) {
>+			DBG_ERR("%s: NT_STATUS_DOWNGRADE_DETECTED\n", __location__);
>+			composite_error(c, NT_STATUS_DOWNGRADE_DETECTED);
> 			return;
> 		}
>+
>+		/* This is probably NT */
>+		continue_logon_control_do(c);
>+		return;
> 	} else if (!composite_is_ok(c)) {
> 		return;
> 	}
>@@ -533,7 +541,8 @@ static void continue_get_capabilities(struct tevent_req *subreq)
> 	if (NT_STATUS_EQUAL(s->c.out.result, NT_STATUS_NOT_IMPLEMENTED)) {
> 		if (s->creds_state->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
> 			/* This means AES isn't supported. */
>-			composite_error(c, NT_STATUS_INVALID_NETWORK_RESPONSE);
>+			DBG_ERR("%s: NT_STATUS_DOWNGRADE_DETECTED\n", __location__);
>+			composite_error(c, NT_STATUS_DOWNGRADE_DETECTED);
> 			return;
> 		}
> 
>@@ -559,11 +568,11 @@ static void continue_get_capabilities(struct tevent_req *subreq)
> 
> 	/* compare capabilities */
> 	if (s->creds_state->negotiate_flags != s->capabilities.server_capabilities) {
>-		DEBUG(2, ("The client capabilities don't match the server "
>-			  "capabilities: local[0x%08X] remote[0x%08X]\n",
>-			  s->creds_state->negotiate_flags,
>-			  s->capabilities.server_capabilities));
>-		composite_error(c, NT_STATUS_INVALID_NETWORK_RESPONSE);
>+		DBG_ERR("The client capabilities don't match the server "
>+			"capabilities: local[0x%08X] remote[0x%08X]\n",
>+			s->creds_state->negotiate_flags,
>+			s->capabilities.server_capabilities);
>+		composite_error(c, NT_STATUS_DOWNGRADE_DETECTED);
> 		return;
> 	}
> 
>@@ -572,6 +581,53 @@ static void continue_get_capabilities(struct tevent_req *subreq)
> 	composite_done(c);
> }
> 
>+static void continue_logon_control_done(struct tevent_req *subreq);
>+
>+static void continue_logon_control_do(struct composite_context *c)
>+{
>+	struct auth_schannel_state *s = NULL;
>+	struct tevent_req *subreq = NULL;
>+
>+	s = talloc_get_type(c->private_data, struct auth_schannel_state);
>+
>+	subreq = dcerpc_netr_LogonControl_send(s,
>+					       c->event_ctx,
>+					       s->pipe->binding_handle,
>+					       s->c.in.server_name,
>+					       NETLOGON_CONTROL_QUERY,
>+					       2,
>+					       &s->ctrl_info);
>+	if (composite_nomem(subreq, c)) return;
>+
>+	tevent_req_set_callback(subreq, continue_logon_control_done, c);
>+}
>+
>+static void continue_logon_control_done(struct tevent_req *subreq)
>+{
>+	struct composite_context *c = NULL;
>+	struct auth_schannel_state *s = NULL;
>+	WERROR werr;
>+
>+	c = tevent_req_callback_data(subreq, struct composite_context);
>+	s = talloc_get_type(c->private_data, struct auth_schannel_state);
>+
>+	/* receive rpc request result */
>+	c->status = dcerpc_netr_LogonControl_recv(subreq, s, &werr);
>+	TALLOC_FREE(subreq);
>+	if (!NT_STATUS_IS_OK(c->status)) {
>+		DBG_ERR("%s: NT_STATUS_DOWNGRADE_DETECTED\n", __location__);
>+		composite_error(c, NT_STATUS_DOWNGRADE_DETECTED);
>+		return;
>+	}
>+
>+	if (!W_ERROR_EQUAL(werr, WERR_NOT_SUPPORTED)) {
>+		DBG_ERR("%s: NT_STATUS_DOWNGRADE_DETECTED\n", __location__);
>+		composite_error(c, NT_STATUS_DOWNGRADE_DETECTED);
>+		return;
>+	}
>+
>+	composite_done(c);
>+}
> 
> /*
>   Initiate schannel authentication request
>-- 
>2.34.1
>
>
>From 7c965078a4b507718ee7de14c18a8a97667d5617 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 16:44:26 +0200
>Subject: [PATCH 14/69] s4:librpc/rpc: don't allow any unexpected upgrades of
> negotiate_flags
>
>Only remove the unsupported flags from local_negotiate_flags for
>the next try...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 69b0cbd13d06fa640a900acab6757425b5b77cac)
>---
> source4/librpc/rpc/dcerpc_schannel.c | 14 +++++++++++---
> 1 file changed, 11 insertions(+), 3 deletions(-)
>
>diff --git a/source4/librpc/rpc/dcerpc_schannel.c b/source4/librpc/rpc/dcerpc_schannel.c
>index 3f69b849bb8d..4e237d841f26 100644
>--- a/source4/librpc/rpc/dcerpc_schannel.c
>+++ b/source4/librpc/rpc/dcerpc_schannel.c
>@@ -243,6 +243,14 @@ static void continue_srv_auth2(struct tevent_req *subreq)
> 		uint32_t rf = s->remote_negotiate_flags;
> 		const char *rn = NULL;
> 
>+		if ((lf & rf) == lf) {
>+			/*
>+			 * without a change in flags
>+			 * there's no need to retry...
>+			 */
>+			s->dcerpc_schannel_auto = false;
>+		}
>+
> 		if (!s->dcerpc_schannel_auto) {
> 			composite_error(c, s->a.out.result);
> 			return;
>@@ -277,7 +285,7 @@ static void continue_srv_auth2(struct tevent_req *subreq)
> 			  "and retry! local[0x%08X] remote[0x%08X]\n",
> 			  ln, rn, lf, rf));
> 
>-		s->local_negotiate_flags = s->remote_negotiate_flags;
>+		s->local_negotiate_flags &= s->remote_negotiate_flags;
> 
> 		generate_random_buffer(s->credentials1.data,
> 				       sizeof(s->credentials1.data));
>@@ -292,14 +300,14 @@ static void continue_srv_auth2(struct tevent_req *subreq)
> 		return;
> 	}
> 
>-	s->creds->negotiate_flags = s->remote_negotiate_flags;
>-
> 	/* verify credentials */
> 	if (!netlogon_creds_client_check(s->creds, s->a.out.return_credentials)) {
> 		composite_error(c, NT_STATUS_UNSUCCESSFUL);
> 		return;
> 	}
> 
>+	s->creds->negotiate_flags &= s->remote_negotiate_flags;
>+
> 	composite_done(c);
> }
> 
>-- 
>2.34.1
>
>
>From 384f148a1cd438c52af44d6e961f25de9140aa91 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 16:38:53 +0200
>Subject: [PATCH 15/69] s4:librpc/rpc: define required schannel flags and
> enforce them
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 25294685b1c2c8652f0ca0220e8f3729e0b347e2)
>---
> source4/librpc/rpc/dcerpc_schannel.c | 61 +++++++++++++++++++++++++---
> 1 file changed, 56 insertions(+), 5 deletions(-)
>
>diff --git a/source4/librpc/rpc/dcerpc_schannel.c b/source4/librpc/rpc/dcerpc_schannel.c
>index 4e237d841f26..a8216c7fde26 100644
>--- a/source4/librpc/rpc/dcerpc_schannel.c
>+++ b/source4/librpc/rpc/dcerpc_schannel.c
>@@ -40,6 +40,7 @@ struct schannel_key_state {
> 	bool dcerpc_schannel_auto;
> 	struct cli_credentials *credentials;
> 	struct netlogon_creds_CredentialState *creds;
>+	uint32_t required_negotiate_flags;
> 	uint32_t local_negotiate_flags;
> 	uint32_t remote_negotiate_flags;
> 	struct netr_Credential credentials1;
>@@ -233,6 +234,29 @@ static void continue_srv_auth2(struct tevent_req *subreq)
> 		return;
> 	}
> 
>+	{
>+		uint32_t rqf = s->required_negotiate_flags;
>+		uint32_t rf = s->remote_negotiate_flags;
>+		uint32_t lf = s->local_negotiate_flags;
>+
>+		if ((rf & NETLOGON_NEG_SUPPORTS_AES) &&
>+		    (lf & NETLOGON_NEG_SUPPORTS_AES))
>+		{
>+			rqf &= ~NETLOGON_NEG_ARCFOUR;
>+			rqf &= ~NETLOGON_NEG_STRONG_KEYS;
>+		}
>+
>+		if ((rqf & rf) != rqf) {
>+			rqf = s->required_negotiate_flags;
>+			DBG_ERR("The client capabilities don't match "
>+				"the server capabilities: local[0x%08X] "
>+				"required[0x%08X] remote[0x%08X]\n",
>+				lf, rqf, rf);
>+			composite_error(c, NT_STATUS_DOWNGRADE_DETECTED);
>+			return;
>+		}
>+	}
>+
> 	/*
> 	 * Strong keys could be unsupported (NT4) or disabled. So retry with the
> 	 * flags returned by the server. - asn
>@@ -325,6 +349,8 @@ static struct composite_context *dcerpc_schannel_key_send(TALLOC_CTX *mem_ctx,
> 	struct composite_context *epm_map_req;
> 	enum netr_SchannelType schannel_type = cli_credentials_get_secure_channel_type(credentials);
> 	struct cli_credentials *epm_creds = NULL;
>+	bool reject_md5_servers = false;
>+	bool require_strong_key = false;
> 
> 	/* composite context allocation and setup */
> 	c = composite_create(mem_ctx, p->conn->event_ctx);
>@@ -338,19 +364,48 @@ static struct composite_context *dcerpc_schannel_key_send(TALLOC_CTX *mem_ctx,
> 	s->pipe        = p;
> 	s->credentials = credentials;
> 	s->local_negotiate_flags = NETLOGON_NEG_AUTH2_FLAGS;
>+	s->required_negotiate_flags = NETLOGON_NEG_AUTHENTICATED_RPC;
> 
> 	/* allocate credentials */
> 	if (s->pipe->conn->flags & DCERPC_SCHANNEL_128) {
> 		s->local_negotiate_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
>+		require_strong_key = true;
> 	}
> 	if (s->pipe->conn->flags & DCERPC_SCHANNEL_AES) {
> 		s->local_negotiate_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
>-		s->local_negotiate_flags |= NETLOGON_NEG_SUPPORTS_AES;
>+		reject_md5_servers = true;
> 	}
> 	if (s->pipe->conn->flags & DCERPC_SCHANNEL_AUTO) {
> 		s->local_negotiate_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
> 		s->local_negotiate_flags |= NETLOGON_NEG_SUPPORTS_AES;
> 		s->dcerpc_schannel_auto = true;
>+		reject_md5_servers = lpcfg_reject_md5_servers(lp_ctx);
>+		require_strong_key = lpcfg_require_strong_key(lp_ctx);
>+	}
>+
>+	if (lpcfg_weak_crypto(lp_ctx) == SAMBA_WEAK_CRYPTO_DISALLOWED) {
>+		reject_md5_servers = true;
>+	}
>+
>+	if (reject_md5_servers) {
>+		require_strong_key = true;
>+	}
>+
>+	if (require_strong_key) {
>+		s->required_negotiate_flags |= NETLOGON_NEG_ARCFOUR;
>+		s->required_negotiate_flags |= NETLOGON_NEG_STRONG_KEYS;
>+	}
>+
>+	if (reject_md5_servers) {
>+		s->required_negotiate_flags |= NETLOGON_NEG_PASSWORD_SET2;
>+		s->required_negotiate_flags |= NETLOGON_NEG_SUPPORTS_AES;
>+	}
>+
>+	s->local_negotiate_flags |= s->required_negotiate_flags;
>+
>+	if (s->required_negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>+		s->required_negotiate_flags &= ~NETLOGON_NEG_ARCFOUR;
>+		s->required_negotiate_flags &= ~NETLOGON_NEG_STRONG_KEYS;
> 	}
> 
> 	/* type of authentication depends on schannel type */
>@@ -358,10 +413,6 @@ static struct composite_context *dcerpc_schannel_key_send(TALLOC_CTX *mem_ctx,
> 		s->local_negotiate_flags |= NETLOGON_NEG_RODC_PASSTHROUGH;
> 	}
> 
>-	if (lpcfg_weak_crypto(lp_ctx) == SAMBA_WEAK_CRYPTO_DISALLOWED) {
>-		s->local_negotiate_flags &= ~NETLOGON_NEG_ARCFOUR;
>-	}
>-
> 	epm_creds = cli_credentials_init_anon(s);
> 	if (composite_nomem(epm_creds, c)) return c;
> 
>-- 
>2.34.1
>
>
>From f917456a0d70f643a6f3a8670473ceedc6efbef2 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 16:38:53 +0200
>Subject: [PATCH 16/69] s4:librpc/rpc: use netr_LogonGetCapabilities
> query_level=2 to verify the proposed capabilities
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 0b6ac4b082ddec5dae1392537727f3a7123ec279)
>---
> source4/librpc/rpc/dcerpc_schannel.c | 145 +++++++++++++++++++++++++--
> 1 file changed, 137 insertions(+), 8 deletions(-)
>
>diff --git a/source4/librpc/rpc/dcerpc_schannel.c b/source4/librpc/rpc/dcerpc_schannel.c
>index a8216c7fde26..9d96abd2521e 100644
>--- a/source4/librpc/rpc/dcerpc_schannel.c
>+++ b/source4/librpc/rpc/dcerpc_schannel.c
>@@ -40,6 +40,7 @@ struct schannel_key_state {
> 	bool dcerpc_schannel_auto;
> 	struct cli_credentials *credentials;
> 	struct netlogon_creds_CredentialState *creds;
>+	uint32_t requested_negotiate_flags;
> 	uint32_t required_negotiate_flags;
> 	uint32_t local_negotiate_flags;
> 	uint32_t remote_negotiate_flags;
>@@ -56,7 +57,8 @@ static void continue_secondary_connection(struct composite_context *ctx);
> static void continue_bind_auth_none(struct composite_context *ctx);
> static void continue_srv_challenge(struct tevent_req *subreq);
> static void continue_srv_auth2(struct tevent_req *subreq);
>-static void continue_get_capabilities(struct tevent_req *subreq);
>+static void continue_get_negotiated_capabilities(struct tevent_req *subreq);
>+static void continue_get_client_capabilities(struct tevent_req *subreq);
> 
> 
> /*
>@@ -184,7 +186,7 @@ static void continue_srv_challenge(struct tevent_req *subreq)
> 	s->a.in.secure_channel_type =
> 		cli_credentials_get_secure_channel_type(s->credentials);
> 	s->a.in.computer_name    = cli_credentials_get_workstation(s->credentials);
>-	s->a.in.negotiate_flags  = &s->local_negotiate_flags;
>+	s->a.in.negotiate_flags  = &s->requested_negotiate_flags;
> 	s->a.in.credentials      = &s->credentials3;
> 	s->a.out.negotiate_flags = &s->remote_negotiate_flags;
> 	s->a.out.return_credentials     = &s->credentials3;
>@@ -330,7 +332,22 @@ static void continue_srv_auth2(struct tevent_req *subreq)
> 		return;
> 	}
> 
>-	s->creds->negotiate_flags &= s->remote_negotiate_flags;
>+	if (s->requested_negotiate_flags == s->local_negotiate_flags) {
>+		/*
>+		 * Without a downgrade in the crypto we proposed
>+		 * we can adjust the otherwise downgraded flags
>+		 * before storing.
>+		 */
>+		s->creds->negotiate_flags &= s->remote_negotiate_flags;
>+	} else if (s->local_negotiate_flags != s->remote_negotiate_flags) {
>+		/*
>+		 * We downgraded our crypto once, we should not
>+		 * allow any additional downgrade!
>+		 */
>+		DBG_ERR("%s: NT_STATUS_DOWNGRADE_DETECTED\n", __location__);
>+		composite_error(c, NT_STATUS_DOWNGRADE_DETECTED);
>+		return;
>+	}
> 
> 	composite_done(c);
> }
>@@ -413,6 +430,8 @@ static struct composite_context *dcerpc_schannel_key_send(TALLOC_CTX *mem_ctx,
> 		s->local_negotiate_flags |= NETLOGON_NEG_RODC_PASSTHROUGH;
> 	}
> 
>+	s->requested_negotiate_flags = s->local_negotiate_flags;
>+
> 	epm_creds = cli_credentials_init_anon(s);
> 	if (composite_nomem(epm_creds, c)) return c;
> 
>@@ -438,7 +457,8 @@ static struct composite_context *dcerpc_schannel_key_send(TALLOC_CTX *mem_ctx,
>  */
> static NTSTATUS dcerpc_schannel_key_recv(struct composite_context *c,
> 				TALLOC_CTX *mem_ctx,
>-				struct netlogon_creds_CredentialState **creds)
>+				struct netlogon_creds_CredentialState **creds,
>+				uint32_t *requested_negotiate_flags)
> {
> 	NTSTATUS status = composite_wait(c);
> 
>@@ -447,6 +467,7 @@ static NTSTATUS dcerpc_schannel_key_recv(struct composite_context *c,
> 			talloc_get_type_abort(c->private_data,
> 			struct schannel_key_state);
> 		*creds = talloc_move(mem_ctx, &s->creds);
>+		*requested_negotiate_flags = s->requested_negotiate_flags;
> 	}
> 
> 	talloc_free(c);
>@@ -457,6 +478,7 @@ static NTSTATUS dcerpc_schannel_key_recv(struct composite_context *c,
> struct auth_schannel_state {
> 	struct dcerpc_pipe *pipe;
> 	struct cli_credentials *credentials;
>+	uint32_t requested_negotiate_flags;
> 	const struct ndr_interface_table *table;
> 	struct loadparm_context *lp_ctx;
> 	uint8_t auth_level;
>@@ -465,6 +487,7 @@ struct auth_schannel_state {
> 	struct netr_Authenticator auth;
> 	struct netr_Authenticator return_auth;
> 	union netr_Capabilities capabilities;
>+	union netr_Capabilities client_caps;
> 	struct netr_LogonGetCapabilities c;
> 	union netr_CONTROL_QUERY_INFORMATION ctrl_info;
> };
>@@ -487,7 +510,11 @@ static void continue_schannel_key(struct composite_context *ctx)
> 	NTSTATUS status;
> 
> 	/* receive schannel key */
>-	status = c->status = dcerpc_schannel_key_recv(ctx, s, &s->creds_state);
>+	c->status = dcerpc_schannel_key_recv(ctx,
>+					     s,
>+					     &s->creds_state,
>+					     &s->requested_negotiate_flags);
>+	status = c->status;
> 	if (!composite_is_ok(c)) {
> 		DEBUG(1, ("Failed to setup credentials: %s\n", nt_errstr(status)));
> 		return;
>@@ -556,7 +583,9 @@ static void continue_bind_auth(struct composite_context *ctx)
> 								 &s->c);
> 		if (composite_nomem(subreq, c)) return;
> 
>-		tevent_req_set_callback(subreq, continue_get_capabilities, c);
>+		tevent_req_set_callback(subreq,
>+					continue_get_negotiated_capabilities,
>+					c);
> 		return;
> 	}
> 
>@@ -568,10 +597,11 @@ static void continue_logon_control_do(struct composite_context *c);
> /*
>   Stage 4 of auth_schannel: Get the Logon Capabilities and verify them.
> */
>-static void continue_get_capabilities(struct tevent_req *subreq)
>+static void continue_get_negotiated_capabilities(struct tevent_req *subreq)
> {
> 	struct composite_context *c;
> 	struct auth_schannel_state *s;
>+	NTSTATUS status;
> 
> 	c = tevent_req_callback_data(subreq, struct composite_context);
> 	s = talloc_get_type(c->private_data, struct auth_schannel_state);
>@@ -635,7 +665,106 @@ static void continue_get_capabilities(struct tevent_req *subreq)
> 		return;
> 	}
> 
>-	/* TODO: Add downgrade detection. */
>+	if ((s->requested_negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) &&
>+	    (!(s->creds_state->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES)))
>+	{
>+		DBG_ERR("%s: NT_STATUS_DOWNGRADE_DETECTED\n", __location__);
>+		composite_error(c, NT_STATUS_DOWNGRADE_DETECTED);
>+		return;
>+	}
>+
>+	ZERO_STRUCT(s->return_auth);
>+
>+	s->save_creds_state = *s->creds_state;
>+	status = netlogon_creds_client_authenticator(&s->save_creds_state,
>+						     &s->auth);
>+	if (!NT_STATUS_IS_OK(status)) {
>+		composite_error(c, status);
>+		return;
>+	}
>+
>+	s->c.in.credential            = &s->auth;
>+	s->c.in.return_authenticator  = &s->return_auth;
>+	s->c.in.query_level           = 2;
>+
>+	s->c.out.capabilities         = &s->client_caps;
>+	s->c.out.return_authenticator = &s->return_auth;
>+
>+	subreq = dcerpc_netr_LogonGetCapabilities_r_send(s,
>+							 c->event_ctx,
>+							 s->pipe->binding_handle,
>+							 &s->c);
>+	if (composite_nomem(subreq, c)) return;
>+
>+	tevent_req_set_callback(subreq, continue_get_client_capabilities, c);
>+	return;
>+}
>+
>+static void continue_get_client_capabilities(struct tevent_req *subreq)
>+{
>+	struct composite_context *c;
>+	struct auth_schannel_state *s;
>+
>+	c = tevent_req_callback_data(subreq, struct composite_context);
>+	s = talloc_get_type(c->private_data, struct auth_schannel_state);
>+
>+	/* receive rpc request result */
>+	c->status = dcerpc_netr_LogonGetCapabilities_r_recv(subreq, s);
>+	TALLOC_FREE(subreq);
>+	if (NT_STATUS_EQUAL(c->status, NT_STATUS_RPC_BAD_STUB_DATA)) {
>+		/*
>+		 * unpatched Samba server, see
>+		 * https://bugzilla.samba.org/show_bug.cgi?id=15418
>+		 */
>+		c->status = NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE;
>+	}
>+	if (NT_STATUS_EQUAL(c->status, NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE)) {
>+		/*
>+		 * Here we know the negotiated flags were already
>+		 * verified with query_level=1, which means
>+		 * the server supported NETLOGON_NEG_SUPPORTS_AES
>+		 * and also NETLOGON_NEG_AUTHENTICATED_RPC
>+		 *
>+		 * As we're using DCERPC_AUTH_TYPE_SCHANNEL with
>+		 * DCERPC_AUTH_LEVEL_INTEGRITY or DCERPC_AUTH_LEVEL_PRIVACY
>+		 * we should detect a faked
>+		 * NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE
>+		 * with the next request as the sequence number processing
>+		 * gets out of sync.
>+		 *
>+		 * So we'll do a LogonControl message to check that...
>+		 */
>+		continue_logon_control_do(c);
>+		return;
>+	}
>+	if (!composite_is_ok(c)) {
>+		return;
>+	}
>+
>+	/* verify credentials */
>+	if (!netlogon_creds_client_check(&s->save_creds_state,
>+					 &s->c.out.return_authenticator->cred)) {
>+		composite_error(c, NT_STATUS_UNSUCCESSFUL);
>+		return;
>+	}
>+
>+	if (!NT_STATUS_IS_OK(s->c.out.result)) {
>+		composite_error(c, s->c.out.result);
>+		return;
>+	}
>+
>+	/* compare capabilities */
>+	if (s->requested_negotiate_flags != s->client_caps.requested_flags) {
>+		DBG_ERR("The client requested capabilities did not reach"
>+			"the server! local[0x%08X] remote[0x%08X]\n",
>+			s->requested_negotiate_flags,
>+			s->client_caps.requested_flags);
>+		composite_error(c, NT_STATUS_DOWNGRADE_DETECTED);
>+		return;
>+	}
>+
>+	*s->creds_state = s->save_creds_state;
>+	cli_credentials_set_netlogon_creds(s->credentials, s->creds_state);
> 
> 	composite_done(c);
> }
>-- 
>2.34.1
>
>
>From 072d3ab9e04d811006a20459a733f5f4ce3ccb52 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Thu, 20 Jul 2023 13:29:12 +0200
>Subject: [PATCH 17/69] s4:torture/rpc/netlogon: adjust
> test_netlogon_capabilities query_level=2 to request_flags
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit d174b6595a962230bf71cc5c2f512a2c93a4cc1b)
>---
> source4/torture/rpc/netlogon.c |  5 ++--
> source4/torture/rpc/schannel.c | 42 ++++++++++++++++++++++++++++++++--
> 2 files changed, 43 insertions(+), 4 deletions(-)
>
>diff --git a/source4/torture/rpc/netlogon.c b/source4/torture/rpc/netlogon.c
>index c3715619cb77..beac67c4c5bf 100644
>--- a/source4/torture/rpc/netlogon.c
>+++ b/source4/torture/rpc/netlogon.c
>@@ -2039,6 +2039,7 @@ bool test_netlogon_ops(struct dcerpc_pipe *p, struct torture_context *tctx,
> */
> bool test_netlogon_capabilities(struct dcerpc_pipe *p, struct torture_context *tctx,
> 				struct cli_credentials *credentials,
>+				uint32_t requested_flags,
> 				struct netlogon_creds_CredentialState *creds)
> {
> 	NTSTATUS status;
>@@ -2156,8 +2157,8 @@ bool test_netlogon_capabilities(struct dcerpc_pipe *p, struct torture_context *t
> 							 &r.out.return_authenticator->cred),
> 		       "Credential chaining failed");
> 
>-	torture_assert_int_equal(tctx, creds->negotiate_flags,
>-				 capabilities.server_capabilities,
>+	torture_assert_int_equal(tctx, requested_flags,
>+				 capabilities.requested_flags,
> 				 "negotiate flags");
> 
> 	return true;
>diff --git a/source4/torture/rpc/schannel.c b/source4/torture/rpc/schannel.c
>index d6dca3666702..42b6f5d52644 100644
>--- a/source4/torture/rpc/schannel.c
>+++ b/source4/torture/rpc/schannel.c
>@@ -32,6 +32,7 @@
> #include "libcli/security/security.h"
> #include "system/filesys.h"
> #include "param/param.h"
>+#include "param/loadparm.h"
> #include "librpc/rpc/dcerpc_proto.h"
> #include "libcli/composite/composite.h"
> #include "lib/events/events.h"
>@@ -591,6 +592,7 @@ static bool test_schannel(struct torture_context *tctx,
> 	struct netlogon_creds_CredentialState *creds;
> 	struct cli_credentials *credentials;
> 	enum dcerpc_transport_t transport;
>+	uint32_t requested_flags;
> 
> 	join_ctx = torture_join_domain(tctx,
> 				       talloc_asprintf(tctx, "%s%d", TEST_MACHINE_NAME, i),
>@@ -630,8 +632,26 @@ static bool test_schannel(struct torture_context *tctx,
> 	creds = cli_credentials_get_netlogon_creds(credentials);
> 	torture_assert(tctx, (creds != NULL), "schannel creds");
> 
>+	requested_flags = NETLOGON_NEG_AUTH2_FLAGS;
>+	if (dcerpc_flags & DCERPC_SCHANNEL_128) {
>+		requested_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
>+	}
>+	if (dcerpc_flags & DCERPC_SCHANNEL_AES) {
>+		requested_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
>+		requested_flags |= NETLOGON_NEG_SUPPORTS_AES;
>+	}
>+	if (dcerpc_flags & DCERPC_SCHANNEL_AUTO) {
>+		requested_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
>+		requested_flags |= NETLOGON_NEG_SUPPORTS_AES;
>+	}
>+	if (lpcfg_weak_crypto(tctx->lp_ctx) == SAMBA_WEAK_CRYPTO_DISALLOWED) {
>+		requested_flags &= ~NETLOGON_NEG_ARCFOUR;
>+		requested_flags |= NETLOGON_NEG_SUPPORTS_AES;
>+	}
>+
> 	/* checks the capabilities */
>-	torture_assert(tctx, test_netlogon_capabilities(p_netlogon, tctx, credentials, creds),
>+	torture_assert(tctx,
>+		       test_netlogon_capabilities(p_netlogon, tctx, credentials, requested_flags, creds),
> 		       "Failed to process schannel secured capability ops (on fresh connection)");
> 
> 	/* do a couple of logins */
>@@ -719,8 +739,26 @@ static bool test_schannel(struct torture_context *tctx,
> 						  tctx, &p_netlogon2);
> 	torture_assert_ntstatus_ok(tctx, status, "Failed to create secondary connection");
> 
>+	requested_flags = NETLOGON_NEG_AUTH2_FLAGS;
>+	if (dcerpc_flags & DCERPC_SCHANNEL_128) {
>+		requested_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
>+	}
>+	if (dcerpc_flags & DCERPC_SCHANNEL_AES) {
>+		requested_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
>+		requested_flags |= NETLOGON_NEG_SUPPORTS_AES;
>+	}
>+	if (dcerpc_flags & DCERPC_SCHANNEL_AUTO) {
>+		requested_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
>+		requested_flags |= NETLOGON_NEG_SUPPORTS_AES;
>+	}
>+	if (lpcfg_weak_crypto(tctx->lp_ctx) == SAMBA_WEAK_CRYPTO_DISALLOWED) {
>+		requested_flags &= ~NETLOGON_NEG_ARCFOUR;
>+		requested_flags |= NETLOGON_NEG_SUPPORTS_AES;
>+	}
>+
> 	/* checks the capabilities */
>-	torture_assert(tctx, test_netlogon_capabilities(p_netlogon2, tctx, credentials, creds),
>+	torture_assert(tctx,
>+		       test_netlogon_capabilities(p_netlogon2, tctx, credentials, requested_flags, creds),
> 		       "Failed to process schannel secured capability ops (on fresh connection)");
> 
> 	/* Try the schannel-only SamLogonEx operation */
>-- 
>2.34.1
>
>
>From d0aa45e7bc636a0e8fcaf9741939bd837968d9c7 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 30 Oct 2024 12:10:49 +0100
>Subject: [PATCH 18/69] s3:cli_netlogon: let rpccli_connect_netlogon() use
> force_reauth = true on retry
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 7f478656dcf08619bc3a7ad390c7db3bfdef924e)
>---
> source3/rpc_client/cli_netlogon.c | 1 +
> 1 file changed, 1 insertion(+)
>
>diff --git a/source3/rpc_client/cli_netlogon.c b/source3/rpc_client/cli_netlogon.c
>index 762802d32780..84122584cb82 100644
>--- a/source3/rpc_client/cli_netlogon.c
>+++ b/source3/rpc_client/cli_netlogon.c
>@@ -387,6 +387,7 @@ again:
> 		if (!retry && NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_ACCESS_DENIED)) {
> 			DBG_DEBUG("Retrying with serverauthenticate\n");
> 			TALLOC_FREE(lck);
>+			force_reauth = true;
> 			retry = true;
> 			goto again;
> 		}
>-- 
>2.34.1
>
>
>From cbbfc0b2d587d0b03736076b7a8ce1844a18503e Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 18:04:27 +0200
>Subject: [PATCH 19/69] s4:dsdb/common: samdb_confirm_rodc_allowed_to_repl_to()
> only needs a const sid
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit c9eaf5e22de730f1e7575f6697f32dbb377eae06)
>---
> source4/dsdb/common/rodc_helper.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/source4/dsdb/common/rodc_helper.c b/source4/dsdb/common/rodc_helper.c
>index b4982aee9ed4..2b2a0ae78268 100644
>--- a/source4/dsdb/common/rodc_helper.c
>+++ b/source4/dsdb/common/rodc_helper.c
>@@ -237,7 +237,7 @@ WERROR samdb_confirm_rodc_allowed_to_repl_to_sid_list(struct ldb_context *sam_ct
>  * rather than relying on the caller providing those
>  */
> WERROR samdb_confirm_rodc_allowed_to_repl_to(struct ldb_context *sam_ctx,
>-					     struct dom_sid *rodc_machine_account_sid,
>+					     const struct dom_sid *rodc_machine_account_sid,
> 					     struct ldb_message *rodc_msg,
> 					     struct ldb_message *obj_msg)
> {
>-- 
>2.34.1
>
>
>From fcec6a65057374b6fc513ec5ef04165f3f60133a Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 18:06:44 +0200
>Subject: [PATCH 20/69] s3:rpc_server/netlogon: add client_sid helper variables
>
>This will make the following changes simpler...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit eda3728a4079c5399f693b1d68e64e5660647c72)
>---
> source3/rpc_server/netlogon/srv_netlog_nt.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
>diff --git a/source3/rpc_server/netlogon/srv_netlog_nt.c b/source3/rpc_server/netlogon/srv_netlog_nt.c
>index 47c08bcd516e..53c100c7a6c5 100644
>--- a/source3/rpc_server/netlogon/srv_netlog_nt.c
>+++ b/source3/rpc_server/netlogon/srv_netlog_nt.c
>@@ -1311,6 +1311,7 @@ NTSTATUS _netr_ServerPasswordSet(struct pipes_struct *p,
> 	size_t i;
> 	struct netlogon_creds_CredentialState *creds = NULL;
> 	struct _samr_Credentials_t cr = { CRED_TYPE_NT_HASH, {0}};
>+	const struct dom_sid *client_sid = NULL;
> 
> 	DEBUG(5,("_netr_ServerPasswordSet: %d\n", __LINE__));
> 
>@@ -1335,6 +1336,7 @@ NTSTATUS _netr_ServerPasswordSet(struct pipes_struct *p,
> 		TALLOC_FREE(creds);
> 		return status;
> 	}
>+	client_sid = creds->sid;
> 
> 	DEBUG(3,("_netr_ServerPasswordSet: Server Password Set by remote machine:[%s] on account [%s]\n",
> 			r->in.computer_name, creds->computer_name));
>@@ -1353,7 +1355,7 @@ NTSTATUS _netr_ServerPasswordSet(struct pipes_struct *p,
> 	status = netr_set_machine_account_password(p->mem_ctx,
> 						   session_info,
> 						   p->msg_ctx,
>-						   creds->sid,
>+						   client_sid,
> 						   &cr);
> 	return status;
> }
>@@ -1370,6 +1372,7 @@ NTSTATUS _netr_ServerPasswordSet2(struct pipes_struct *p,
> 		dcesrv_call_session_info(dce_call);
> 	NTSTATUS status;
> 	struct netlogon_creds_CredentialState *creds = NULL;
>+	const struct dom_sid *client_sid = NULL;
> 	DATA_BLOB plaintext = data_blob_null;
> 	DATA_BLOB new_password = data_blob_null;
> 	size_t confounder_len;
>@@ -1395,6 +1398,7 @@ NTSTATUS _netr_ServerPasswordSet2(struct pipes_struct *p,
> 		TALLOC_FREE(creds);
> 		return status;
> 	}
>+	client_sid = creds->sid;
> 
> 	DBG_NOTICE("Server Password Set2 by remote "
> 		   "machine:[%s] on account [%s]\n",
>@@ -1515,7 +1519,7 @@ NTSTATUS _netr_ServerPasswordSet2(struct pipes_struct *p,
> 	status = netr_set_machine_account_password(p->mem_ctx,
> 						   session_info,
> 						   p->msg_ctx,
>-						   creds->sid,
>+						   client_sid,
> 						   &cr);
> 	TALLOC_FREE(creds);
> 	return status;
>-- 
>2.34.1
>
>
>From 5b799ef3b20b6f42e6e5800524362d4f36ea5d9a Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 18:06:44 +0200
>Subject: [PATCH 21/69] s4:rpc_server/netlogon: add client_sid helper variables
>
>This will make the following changes simpler...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 2e8949495f601d3fd117cceccd1b464a6ae43251)
>---
> source4/rpc_server/netlogon/dcerpc_netlogon.c | 26 ++++++++++++++-----
> 1 file changed, 19 insertions(+), 7 deletions(-)
>
>diff --git a/source4/rpc_server/netlogon/dcerpc_netlogon.c b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>index 6a1740dc83ed..1fc7c4d15882 100644
>--- a/source4/rpc_server/netlogon/dcerpc_netlogon.c
>+++ b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>@@ -927,6 +927,7 @@ static NTSTATUS dcesrv_netr_ServerPasswordSet(struct dcesrv_call_state *dce_call
> 				       struct netr_ServerPasswordSet *r)
> {
> 	struct netlogon_creds_CredentialState *creds;
>+	const struct dom_sid *client_sid = NULL;
> 	struct ldb_context *sam_ctx;
> 	NTSTATUS nt_status;
> 
>@@ -936,6 +937,7 @@ static NTSTATUS dcesrv_netr_ServerPasswordSet(struct dcesrv_call_state *dce_call
> 							r->in.credential, r->out.return_authenticator,
> 							&creds);
> 	NT_STATUS_NOT_OK_RETURN(nt_status);
>+	client_sid = creds->sid;
> 
> 	sam_ctx = dcesrv_samdb_connect_as_system(mem_ctx, dce_call);
> 	if (sam_ctx == NULL) {
>@@ -947,7 +949,7 @@ static NTSTATUS dcesrv_netr_ServerPasswordSet(struct dcesrv_call_state *dce_call
> 
> 	/* Using the sid for the account as the key, set the password */
> 	nt_status = samdb_set_password_sid(sam_ctx, mem_ctx,
>-					   creds->sid,
>+					   client_sid,
> 					   NULL, /* Don't have version */
> 					   NULL, /* Don't have plaintext */
> 					   r->in.new_password,
>@@ -964,6 +966,7 @@ static NTSTATUS dcesrv_netr_ServerPasswordSet2(struct dcesrv_call_state *dce_cal
> 				       struct netr_ServerPasswordSet2 *r)
> {
> 	struct netlogon_creds_CredentialState *creds;
>+	const struct dom_sid *client_sid = NULL;
> 	struct ldb_context *sam_ctx;
> 	struct NL_PASSWORD_VERSION version = {};
> 	const uint32_t *new_version = NULL;
>@@ -980,6 +983,7 @@ static NTSTATUS dcesrv_netr_ServerPasswordSet2(struct dcesrv_call_state *dce_cal
> 							r->in.credential, r->out.return_authenticator,
> 							&creds);
> 	NT_STATUS_NOT_OK_RETURN(nt_status);
>+	client_sid = creds->sid;
> 
> 	sam_ctx = dcesrv_samdb_connect_as_system(mem_ctx, dce_call);
> 	if (sam_ctx == NULL) {
>@@ -1088,7 +1092,7 @@ static NTSTATUS dcesrv_netr_ServerPasswordSet2(struct dcesrv_call_state *dce_cal
> 
> 	/* Using the sid for the account as the key, set the password */
> 	nt_status = samdb_set_password_sid(sam_ctx, mem_ctx,
>-					   creds->sid,
>+					   client_sid,
> 					   new_version,
> 					   &new_password, /* we have plaintext */
> 					   NULL,
>@@ -2624,6 +2628,7 @@ static NTSTATUS dcesrv_netr_LogonGetDomainInfo(struct dcesrv_call_state *dce_cal
> 	TALLOC_CTX *mem_ctx, struct netr_LogonGetDomainInfo *r)
> {
> 	struct netlogon_creds_CredentialState *creds;
>+	const struct dom_sid *client_sid = NULL;
> 	static const char *const trusts_attrs[] = {"securityIdentifier",
> 						   "flatName",
> 						   "trustPartner",
>@@ -2672,6 +2677,7 @@ static NTSTATUS dcesrv_netr_LogonGetDomainInfo(struct dcesrv_call_state *dce_cal
> 		talloc_free(frame);
> 	}
> 	NT_STATUS_NOT_OK_RETURN(status);
>+	client_sid = creds->sid;
> 
> 	/* We want to avoid connecting as system. */
> 	sam_ctx = dcesrv_samdb_connect_as_user(mem_ctx, dce_call);
>@@ -2688,7 +2694,7 @@ static NTSTATUS dcesrv_netr_LogonGetDomainInfo(struct dcesrv_call_state *dce_cal
> 
> 		/* Prepares the workstation DN */
> 		workstation_dn = ldb_dn_new_fmt(mem_ctx, sam_ctx, "<SID=%s>",
>-						dom_sid_string(mem_ctx, creds->sid));
>+						dom_sid_string(mem_ctx, client_sid));
> 		NT_STATUS_HAVE_NO_MEMORY(workstation_dn);
> 
> 		/* Get the workstation's session info from the database. */
>@@ -2997,7 +3003,7 @@ static NTSTATUS dcesrv_netr_ServerPasswordGet(struct dcesrv_call_state *dce_call
> 
> static bool sam_rodc_access_check(struct ldb_context *sam_ctx,
> 				  TALLOC_CTX *mem_ctx,
>-				  struct dom_sid *user_sid,
>+				  const struct dom_sid *user_sid,
> 				  struct ldb_dn *obj_dn)
> {
> 	static const char *rodc_attrs[] = {"msDS-NeverRevealGroup",
>@@ -3052,6 +3058,7 @@ static NTSTATUS dcesrv_netr_NetrLogonSendToSam(struct dcesrv_call_state *dce_cal
> 					       struct netr_NetrLogonSendToSam *r)
> {
> 	struct netlogon_creds_CredentialState *creds;
>+	const struct dom_sid *client_sid = NULL;
> 	struct ldb_context *sam_ctx;
> 	NTSTATUS nt_status;
> 	DATA_BLOB decrypted_blob;
>@@ -3066,6 +3073,7 @@ static NTSTATUS dcesrv_netr_NetrLogonSendToSam(struct dcesrv_call_state *dce_cal
> 							&creds);
> 
> 	NT_STATUS_NOT_OK_RETURN(nt_status);
>+	client_sid = creds->sid;
> 
> 	switch (creds->secure_channel_type) {
> 	case SEC_CHAN_BDC:
>@@ -3137,7 +3145,7 @@ static NTSTATUS dcesrv_netr_NetrLogonSendToSam(struct dcesrv_call_state *dce_cal
> 		}
> 
> 		if (creds->secure_channel_type == SEC_CHAN_RODC &&
>-		    !sam_rodc_access_check(sam_ctx, mem_ctx, creds->sid, dn)) {
>+		    !sam_rodc_access_check(sam_ctx, mem_ctx, client_sid, dn)) {
> 			DEBUG(1, ("Client asked to reset bad password on "
> 				  "an arbitrary user: %s\n",
> 				  ldb_dn_get_linearized(dn)));
>@@ -4422,6 +4430,7 @@ static NTSTATUS dcesrv_netr_ServerGetTrustInfo(struct dcesrv_call_state *dce_cal
> {
> 	struct loadparm_context *lp_ctx = dce_call->conn->dce_ctx->lp_ctx;
> 	struct netlogon_creds_CredentialState *creds = NULL;
>+	const struct dom_sid *client_sid = NULL;
> 	struct ldb_context *sam_ctx = NULL;
> 	const char * const attrs[] = {
> 		"unicodePwd",
>@@ -4456,6 +4465,7 @@ static NTSTATUS dcesrv_netr_ServerGetTrustInfo(struct dcesrv_call_state *dce_cal
> 	if (!NT_STATUS_IS_OK(nt_status)) {
> 		return nt_status;
> 	}
>+	client_sid = creds->sid;
> 
> 	/* TODO: check r->in.server_name is our name */
> 
>@@ -4476,7 +4486,7 @@ static NTSTATUS dcesrv_netr_ServerGetTrustInfo(struct dcesrv_call_state *dce_cal
> 		return NT_STATUS_INVALID_SYSTEM_SERVICE;
> 	}
> 
>-	asid = ldap_encode_ndr_dom_sid(mem_ctx, creds->sid);
>+	asid = ldap_encode_ndr_dom_sid(mem_ctx, client_sid);
> 	if (asid == NULL) {
> 		return NT_STATUS_NO_MEMORY;
> 	}
>@@ -4631,6 +4641,7 @@ static NTSTATUS dcesrv_netr_DsrUpdateReadOnlyServerDnsRecords(struct dcesrv_call
> 	struct tevent_req *subreq;
> 	struct imessaging_context *imsg_ctx =
> 		dcesrv_imessaging_context(dce_call->conn);
>+	struct dom_sid *client_sid = NULL;
> 
> 	nt_status = dcesrv_netr_creds_server_step_check(dce_call,
> 							mem_ctx,
>@@ -4639,6 +4650,7 @@ static NTSTATUS dcesrv_netr_DsrUpdateReadOnlyServerDnsRecords(struct dcesrv_call
> 							r->out.return_authenticator,
> 							&creds);
> 	NT_STATUS_NOT_OK_RETURN(nt_status);
>+	client_sid = creds->sid;
> 
> 	if (creds->secure_channel_type != SEC_CHAN_RODC) {
> 		return NT_STATUS_ACCESS_DENIED;
>@@ -4652,7 +4664,7 @@ static NTSTATUS dcesrv_netr_DsrUpdateReadOnlyServerDnsRecords(struct dcesrv_call
> 	st->r2 = talloc_zero(st, struct dnsupdate_RODC);
> 	NT_STATUS_HAVE_NO_MEMORY(st->r2);
> 
>-	st->r2->in.dom_sid = creds->sid;
>+	st->r2->in.dom_sid = client_sid;
> 	st->r2->in.site_name = r->in.site_name;
> 	st->r2->in.dns_ttl = r->in.dns_ttl;
> 	st->r2->in.dns_names = r->in.dns_names;
>-- 
>2.34.1
>
>
>From 32584475a0558601fb5f5bc6f6ccef7902a407b0 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 18:46:43 +0200
>Subject: [PATCH 22/69] libcli/auth: pass client_sid to
> netlogon_creds_server_init()
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit c2ef866fca296c8f3eb1620fdd2bb9bf289d96fc)
>---
> libcli/auth/credentials.c                     | 7 +++++++
> libcli/auth/proto.h                           | 1 +
> source3/rpc_server/netlogon/srv_netlog_nt.c   | 7 +------
> source4/rpc_server/netlogon/dcerpc_netlogon.c | 9 +++++++--
> 4 files changed, 16 insertions(+), 8 deletions(-)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index d18759604480..236cb6fc1803 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -657,6 +657,7 @@ struct netlogon_creds_CredentialState *netlogon_creds_server_init(TALLOC_CTX *me
> 								  const struct samr_Password *machine_password,
> 								  const struct netr_Credential *credentials_in,
> 								  struct netr_Credential *credentials_out,
>+								  const struct dom_sid *client_sid,
> 								  uint32_t negotiate_flags)
> {
> 
>@@ -700,6 +701,12 @@ struct netlogon_creds_CredentialState *netlogon_creds_server_init(TALLOC_CTX *me
> 		return NULL;
> 	}
> 
>+	creds->sid = dom_sid_dup(creds, client_sid);
>+	if (creds->sid == NULL) {
>+		talloc_free(creds);
>+		return NULL;
>+	}
>+
> 	if (negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
> 		status = netlogon_creds_init_hmac_sha256(creds,
> 							 client_challenge,
>diff --git a/libcli/auth/proto.h b/libcli/auth/proto.h
>index 9f6a8b68b8b1..edc3284d32cd 100644
>--- a/libcli/auth/proto.h
>+++ b/libcli/auth/proto.h
>@@ -69,6 +69,7 @@ struct netlogon_creds_CredentialState *netlogon_creds_server_init(TALLOC_CTX *me
> 								  const struct samr_Password *machine_password,
> 								  const struct netr_Credential *credentials_in,
> 								  struct netr_Credential *credentials_out,
>+								  const struct dom_sid *client_sid,
> 								  uint32_t negotiate_flags);
> NTSTATUS netlogon_creds_server_step_check(struct netlogon_creds_CredentialState *creds,
> 				 const struct netr_Authenticator *received_authenticator,
>diff --git a/source3/rpc_server/netlogon/srv_netlog_nt.c b/source3/rpc_server/netlogon/srv_netlog_nt.c
>index 53c100c7a6c5..467d337f5529 100644
>--- a/source3/rpc_server/netlogon/srv_netlog_nt.c
>+++ b/source3/rpc_server/netlogon/srv_netlog_nt.c
>@@ -1010,6 +1010,7 @@ NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
> 					   &mach_pwd,
> 					   r->in.credentials,
> 					   r->out.return_credentials,
>+					   &sid,
> 					   neg_flags);
> 	if (!creds) {
> 		DEBUG(0,("%s: netlogon_creds_server_check failed. Rejecting auth "
>@@ -1020,12 +1021,6 @@ NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
> 		goto out;
> 	}
> 
>-	creds->sid = dom_sid_dup(creds, &sid);
>-	if (!creds->sid) {
>-		status = NT_STATUS_NO_MEMORY;
>-		goto out;
>-	}
>-
> 	/* Store off the state so we can continue after client disconnect. */
> 	become_root();
> 	status = schannel_save_creds_state(p->mem_ctx, lp_ctx, creds);
>diff --git a/source4/rpc_server/netlogon/dcerpc_netlogon.c b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>index 1fc7c4d15882..4d3e2c106cd8 100644
>--- a/source4/rpc_server/netlogon/dcerpc_netlogon.c
>+++ b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>@@ -768,6 +768,11 @@ static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
> 		return NT_STATUS_ACCESS_DENIED;
> 	}
> 
>+	*sid = samdb_result_dom_sid(mem_ctx, msgs[0], "objectSid");
>+	if (*sid == NULL) {
>+		return NT_STATUS_ACCESS_DENIED;
>+	}
>+
> 	creds = netlogon_creds_server_init(mem_ctx,
> 					   r->in.account_name,
> 					   r->in.computer_name,
>@@ -777,6 +782,7 @@ static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
> 					   curNtHash,
> 					   r->in.credentials,
> 					   r->out.return_credentials,
>+					   *sid,
> 					   negotiate_flags);
> 	if (creds == NULL && prevNtHash != NULL) {
> 		/*
>@@ -794,14 +800,13 @@ static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
> 						   prevNtHash,
> 						   r->in.credentials,
> 						   r->out.return_credentials,
>+						   *sid,
> 						   negotiate_flags);
> 	}
> 
> 	if (creds == NULL) {
> 		return NT_STATUS_ACCESS_DENIED;
> 	}
>-	creds->sid = samdb_result_dom_sid(creds, msgs[0], "objectSid");
>-	*sid = talloc_memdup(mem_ctx, creds->sid, sizeof(struct dom_sid));
> 
> 	nt_status = schannel_save_creds_state(mem_ctx,
> 					      dce_call->conn->dce_ctx->lp_ctx,
>-- 
>2.34.1
>
>
>From 81e94e4a5ace23ca1176ccdad5213b562e72f407 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 18:54:05 +0200
>Subject: [PATCH 23/69] libcli/auth: split out
> netlogon_creds_CredentialState_extra_info
>
>As server we are free to change the netlogon_creds_CredentialState
>database record format at will as it uses CLEAR_IF_FIRST.
>
>For now that format doesn't really changes, because we
>only move dom_sid into a wrapper structure.
>
>In order to avoid changing all callers in this commit,
>we maintain creds->sid as in memory pointer.
>
>In the following patches we'll also use it in order
>to store client related information...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 518f57b93bdb84900d3b58cd94bdf1046f82a5a6)
>---
> libcli/auth/credentials.c        | 22 +++++++++++++++++-----
> libcli/auth/schannel_state_tdb.c | 15 +++++++++++++++
> librpc/idl/schannel.idl          | 14 +++++++++++++-
> 3 files changed, 45 insertions(+), 6 deletions(-)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index 236cb6fc1803..342dcd95154a 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -701,11 +701,15 @@ struct netlogon_creds_CredentialState *netlogon_creds_server_init(TALLOC_CTX *me
> 		return NULL;
> 	}
> 
>-	creds->sid = dom_sid_dup(creds, client_sid);
>-	if (creds->sid == NULL) {
>+	creds->ex = talloc_zero(creds,
>+			struct netlogon_creds_CredentialState_extra_info);
>+	if (creds->ex == NULL) {
> 		talloc_free(creds);
> 		return NULL;
> 	}
>+	creds->ex->client_sid = *client_sid;
>+
>+	creds->sid = &creds->ex->client_sid;
> 
> 	if (negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
> 		status = netlogon_creds_init_hmac_sha256(creds,
>@@ -1193,12 +1197,20 @@ struct netlogon_creds_CredentialState *netlogon_creds_copy(
> 		return NULL;
> 	}
> 
>-	if (creds_in->sid) {
>-		creds->sid = dom_sid_dup(creds, creds_in->sid);
>-		if (!creds->sid) {
>+	if (creds_in->ex != NULL) {
>+		creds->ex = talloc_zero(creds,
>+			struct netlogon_creds_CredentialState_extra_info);
>+		if (creds->ex == NULL) {
> 			talloc_free(creds);
> 			return NULL;
> 		}
>+		*creds->ex = *creds_in->ex;
>+	}
>+
>+	if (creds->ex != NULL) {
>+		creds->sid = &creds->ex->client_sid;
>+	} else {
>+		creds->sid = NULL;
> 	}
> 
> 	memcpy(creds->session_key, creds_in->session_key, sizeof(creds->session_key));
>diff --git a/libcli/auth/schannel_state_tdb.c b/libcli/auth/schannel_state_tdb.c
>index 2454a4338194..ee7ee546baff 100644
>--- a/libcli/auth/schannel_state_tdb.c
>+++ b/libcli/auth/schannel_state_tdb.c
>@@ -88,6 +88,14 @@ NTSTATUS schannel_store_session_key_tdb(struct db_context *db_sc,
> 	char *name_upper;
> 	NTSTATUS status;
> 
>+	if (creds->ex == NULL) {
>+		return NT_STATUS_INTERNAL_ERROR;
>+	}
>+
>+	if (creds->sid == NULL) {
>+		return NT_STATUS_INTERNAL_ERROR;
>+	}
>+
> 	if (strlen(creds->computer_name) > 15) {
> 		/*
> 		 * We may want to check for a completely
>@@ -195,6 +203,13 @@ NTSTATUS schannel_fetch_session_key_tdb(struct db_context *db_sc,
> 		NDR_PRINT_DEBUG(netlogon_creds_CredentialState, creds);
> 	}
> 
>+	if (creds->ex == NULL) {
>+		status = NT_STATUS_INTERNAL_ERROR;
>+		goto done;
>+	}
>+
>+	creds->sid = &creds->ex->client_sid;
>+
> 	DEBUG(3,("schannel_fetch_session_key_tdb: restored schannel info key %s\n",
> 		keystr));
> 
>diff --git a/librpc/idl/schannel.idl b/librpc/idl/schannel.idl
>index 3bc8a92c92f6..76b0dfd4c553 100644
>--- a/librpc/idl/schannel.idl
>+++ b/librpc/idl/schannel.idl
>@@ -14,6 +14,17 @@ interface schannel
> {
> 	/* this structure is used internally in the NETLOGON server */
> 
>+	typedef [flag(NDR_PAHEX)] struct {
>+		/*
>+		 * These were only used on the server part
>+		 * with a single dom_sid for the client_sid.
>+		 *
>+		 * On the server we use CLEAR_IF_FIRST,
>+		 * so db layout changes don't matter there.
>+		 */
>+		dom_sid client_sid;
>+	} netlogon_creds_CredentialState_extra_info;
>+
> 	typedef [public,flag(NDR_PAHEX)] struct {
> 		netr_NegotiateFlags negotiate_flags;
> 		uint8 session_key[16];
>@@ -24,7 +35,8 @@ interface schannel
> 		netr_SchannelType secure_channel_type;
> 		[string,charset(UTF8)] uint8 computer_name[];
> 		[string,charset(UTF8)] uint8 account_name[];
>-		dom_sid *sid;
>+		[skip] dom_sid *sid;
>+		netlogon_creds_CredentialState_extra_info *ex;
> 	} netlogon_creds_CredentialState;
> 
> 	/* This is used in the schannel_store.tdb */
>-- 
>2.34.1
>
>
>From 5799c2bf1ba231a8b60511f15ce5dc94e4873d45 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 19:00:45 +0200
>Subject: [PATCH 24/69] librpc/rpc: make use of creds->ex->client_sid in
> dcesrv_netr_check_schannel_get_state()
>
>creds->sid will be removed soon.
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 453587fbc1ef74a3b997235e84040553261fa13e)
>---
> librpc/rpc/server/netlogon/schannel_util.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
>diff --git a/librpc/rpc/server/netlogon/schannel_util.c b/librpc/rpc/server/netlogon/schannel_util.c
>index b14497b13ce3..b98b4706aac1 100644
>--- a/librpc/rpc/server/netlogon/schannel_util.c
>+++ b/librpc/rpc/server/netlogon/schannel_util.c
>@@ -70,7 +70,7 @@ static NTSTATUS dcesrv_netr_check_schannel_get_state(struct dcesrv_call_state *d
> 			DCESRV_NETR_CHECK_SCHANNEL_STATE_MAGIC,
> 			struct dcesrv_netr_check_schannel_state);
> 	if (s != NULL) {
>-		if (!dom_sid_equal(&s->account_sid, creds->sid)) {
>+		if (!dom_sid_equal(&s->account_sid, &creds->ex->client_sid)) {
> 			goto new_state;
> 		}
> 		if (s->auth_type != auth_type) {
>@@ -92,7 +92,7 @@ new_state:
> 		return NT_STATUS_NO_MEMORY;
> 	}
> 
>-	s->account_sid = *creds->sid;
>+	s->account_sid = creds->ex->client_sid;
> 	s->auth_type = auth_type;
> 	s->auth_level = auth_level;
> 	s->result = NT_STATUS_MORE_PROCESSING_REQUIRED;
>-- 
>2.34.1
>
>
>From 166ca9d2ed5c2b59954e191e1a05111a8b6ea1d7 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 19:01:39 +0200
>Subject: [PATCH 25/69] s3:rpc_server/netlogon: make use of
> creds->ex->client_sid
>
>creds->sid will be removed soon...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 88a84d9330d2bb03176f888a0d8e5066e1e21bf6)
>---
> source3/rpc_server/netlogon/srv_netlog_nt.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
>diff --git a/source3/rpc_server/netlogon/srv_netlog_nt.c b/source3/rpc_server/netlogon/srv_netlog_nt.c
>index 467d337f5529..bce18636b523 100644
>--- a/source3/rpc_server/netlogon/srv_netlog_nt.c
>+++ b/source3/rpc_server/netlogon/srv_netlog_nt.c
>@@ -1331,7 +1331,7 @@ NTSTATUS _netr_ServerPasswordSet(struct pipes_struct *p,
> 		TALLOC_FREE(creds);
> 		return status;
> 	}
>-	client_sid = creds->sid;
>+	client_sid = &creds->ex->client_sid;
> 
> 	DEBUG(3,("_netr_ServerPasswordSet: Server Password Set by remote machine:[%s] on account [%s]\n",
> 			r->in.computer_name, creds->computer_name));
>@@ -1393,7 +1393,7 @@ NTSTATUS _netr_ServerPasswordSet2(struct pipes_struct *p,
> 		TALLOC_FREE(creds);
> 		return status;
> 	}
>-	client_sid = creds->sid;
>+	client_sid = &creds->ex->client_sid;
> 
> 	DBG_NOTICE("Server Password Set2 by remote "
> 		   "machine:[%s] on account [%s]\n",
>-- 
>2.34.1
>
>
>From ffd8db4cc4fcb71a1eb39166fdeb31c0bf27d23e Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 19:01:39 +0200
>Subject: [PATCH 26/69] s4:rpc_server/netlogon: make use of
> creds->ex->client_sid
>
>creds->sid will be removed soon...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 4533afc9e12c4dbbc7d11c13e775888c113d497c)
>---
> source4/rpc_server/netlogon/dcerpc_netlogon.c | 14 +++++++-------
> 1 file changed, 7 insertions(+), 7 deletions(-)
>
>diff --git a/source4/rpc_server/netlogon/dcerpc_netlogon.c b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>index 4d3e2c106cd8..439383cafc68 100644
>--- a/source4/rpc_server/netlogon/dcerpc_netlogon.c
>+++ b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>@@ -942,7 +942,7 @@ static NTSTATUS dcesrv_netr_ServerPasswordSet(struct dcesrv_call_state *dce_call
> 							r->in.credential, r->out.return_authenticator,
> 							&creds);
> 	NT_STATUS_NOT_OK_RETURN(nt_status);
>-	client_sid = creds->sid;
>+	client_sid = &creds->ex->client_sid;
> 
> 	sam_ctx = dcesrv_samdb_connect_as_system(mem_ctx, dce_call);
> 	if (sam_ctx == NULL) {
>@@ -988,7 +988,7 @@ static NTSTATUS dcesrv_netr_ServerPasswordSet2(struct dcesrv_call_state *dce_cal
> 							r->in.credential, r->out.return_authenticator,
> 							&creds);
> 	NT_STATUS_NOT_OK_RETURN(nt_status);
>-	client_sid = creds->sid;
>+	client_sid = &creds->ex->client_sid;
> 
> 	sam_ctx = dcesrv_samdb_connect_as_system(mem_ctx, dce_call);
> 	if (sam_ctx == NULL) {
>@@ -1339,7 +1339,7 @@ static NTSTATUS dcesrv_netr_LogonSamLogon_base_call(struct dcesrv_netr_LogonSamL
> 		user_info->netlogon_trust_account.account_name
> 			= creds->account_name;
> 		user_info->netlogon_trust_account.sid
>-			= creds->sid;
>+			= &creds->ex->client_sid;
> 
> 		break;
> 	default:
>@@ -2682,7 +2682,7 @@ static NTSTATUS dcesrv_netr_LogonGetDomainInfo(struct dcesrv_call_state *dce_cal
> 		talloc_free(frame);
> 	}
> 	NT_STATUS_NOT_OK_RETURN(status);
>-	client_sid = creds->sid;
>+	client_sid = &creds->ex->client_sid;
> 
> 	/* We want to avoid connecting as system. */
> 	sam_ctx = dcesrv_samdb_connect_as_user(mem_ctx, dce_call);
>@@ -3078,7 +3078,7 @@ static NTSTATUS dcesrv_netr_NetrLogonSendToSam(struct dcesrv_call_state *dce_cal
> 							&creds);
> 
> 	NT_STATUS_NOT_OK_RETURN(nt_status);
>-	client_sid = creds->sid;
>+	client_sid = &creds->ex->client_sid;
> 
> 	switch (creds->secure_channel_type) {
> 	case SEC_CHAN_BDC:
>@@ -4470,7 +4470,7 @@ static NTSTATUS dcesrv_netr_ServerGetTrustInfo(struct dcesrv_call_state *dce_cal
> 	if (!NT_STATUS_IS_OK(nt_status)) {
> 		return nt_status;
> 	}
>-	client_sid = creds->sid;
>+	client_sid = &creds->ex->client_sid;
> 
> 	/* TODO: check r->in.server_name is our name */
> 
>@@ -4655,7 +4655,7 @@ static NTSTATUS dcesrv_netr_DsrUpdateReadOnlyServerDnsRecords(struct dcesrv_call
> 							r->out.return_authenticator,
> 							&creds);
> 	NT_STATUS_NOT_OK_RETURN(nt_status);
>-	client_sid = creds->sid;
>+	client_sid = &creds->ex->client_sid;
> 
> 	if (creds->secure_channel_type != SEC_CHAN_RODC) {
> 		return NT_STATUS_ACCESS_DENIED;
>-- 
>2.34.1
>
>
>From 642b1145a9b485d3756713eedb6bc9cef0647ebe Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 19:04:02 +0200
>Subject: [PATCH 27/69] libcli/auth: remove unused creds->sid
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit a9308c490cb5ec8908a3e4c13e2ce8a08b9027e9)
>---
> libcli/auth/credentials.c        | 8 --------
> libcli/auth/schannel_state_tdb.c | 6 ------
> librpc/idl/schannel.idl          | 1 -
> 3 files changed, 15 deletions(-)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index 342dcd95154a..07b146579f67 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -709,8 +709,6 @@ struct netlogon_creds_CredentialState *netlogon_creds_server_init(TALLOC_CTX *me
> 	}
> 	creds->ex->client_sid = *client_sid;
> 
>-	creds->sid = &creds->ex->client_sid;
>-
> 	if (negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
> 		status = netlogon_creds_init_hmac_sha256(creds,
> 							 client_challenge,
>@@ -1207,12 +1205,6 @@ struct netlogon_creds_CredentialState *netlogon_creds_copy(
> 		*creds->ex = *creds_in->ex;
> 	}
> 
>-	if (creds->ex != NULL) {
>-		creds->sid = &creds->ex->client_sid;
>-	} else {
>-		creds->sid = NULL;
>-	}
>-
> 	memcpy(creds->session_key, creds_in->session_key, sizeof(creds->session_key));
> 	memcpy(creds->seed.data, creds_in->seed.data, sizeof(creds->seed.data));
> 	memcpy(creds->client.data, creds_in->client.data, sizeof(creds->client.data));
>diff --git a/libcli/auth/schannel_state_tdb.c b/libcli/auth/schannel_state_tdb.c
>index ee7ee546baff..4154997fc025 100644
>--- a/libcli/auth/schannel_state_tdb.c
>+++ b/libcli/auth/schannel_state_tdb.c
>@@ -92,10 +92,6 @@ NTSTATUS schannel_store_session_key_tdb(struct db_context *db_sc,
> 		return NT_STATUS_INTERNAL_ERROR;
> 	}
> 
>-	if (creds->sid == NULL) {
>-		return NT_STATUS_INTERNAL_ERROR;
>-	}
>-
> 	if (strlen(creds->computer_name) > 15) {
> 		/*
> 		 * We may want to check for a completely
>@@ -208,8 +204,6 @@ NTSTATUS schannel_fetch_session_key_tdb(struct db_context *db_sc,
> 		goto done;
> 	}
> 
>-	creds->sid = &creds->ex->client_sid;
>-
> 	DEBUG(3,("schannel_fetch_session_key_tdb: restored schannel info key %s\n",
> 		keystr));
> 
>diff --git a/librpc/idl/schannel.idl b/librpc/idl/schannel.idl
>index 76b0dfd4c553..ad296f48d845 100644
>--- a/librpc/idl/schannel.idl
>+++ b/librpc/idl/schannel.idl
>@@ -35,7 +35,6 @@ interface schannel
> 		netr_SchannelType secure_channel_type;
> 		[string,charset(UTF8)] uint8 computer_name[];
> 		[string,charset(UTF8)] uint8 account_name[];
>-		[skip] dom_sid *sid;
> 		netlogon_creds_CredentialState_extra_info *ex;
> 	} netlogon_creds_CredentialState;
> 
>-- 
>2.34.1
>
>
>From 20cda577a90af3486940391f785056c42d22798f Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 19:06:59 +0200
>Subject: [PATCH 28/69] libcli/auth: remember client_requested_flags and
> auth_time in netlogon_creds_server_init()
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit dfbc5e5a19420311eac3db5ede1c665a9198395d)
>---
> libcli/auth/credentials.c                     | 5 +++++
> libcli/auth/proto.h                           | 1 +
> librpc/idl/schannel.idl                       | 2 ++
> source3/rpc_server/netlogon/srv_netlog_nt.c   | 1 +
> source4/rpc_server/netlogon/dcerpc_netlogon.c | 6 +++++-
> 5 files changed, 14 insertions(+), 1 deletion(-)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index 07b146579f67..59db4bc28ea7 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -657,11 +657,14 @@ struct netlogon_creds_CredentialState *netlogon_creds_server_init(TALLOC_CTX *me
> 								  const struct samr_Password *machine_password,
> 								  const struct netr_Credential *credentials_in,
> 								  struct netr_Credential *credentials_out,
>+								  uint32_t client_requested_flags,
> 								  const struct dom_sid *client_sid,
> 								  uint32_t negotiate_flags)
> {
> 
> 	struct netlogon_creds_CredentialState *creds = talloc_zero(mem_ctx, struct netlogon_creds_CredentialState);
>+	struct timeval tv = timeval_current();
>+	NTTIME now = timeval_to_nttime(&tv);
> 	NTSTATUS status;
> 	bool ok;
> 
>@@ -707,6 +710,8 @@ struct netlogon_creds_CredentialState *netlogon_creds_server_init(TALLOC_CTX *me
> 		talloc_free(creds);
> 		return NULL;
> 	}
>+	creds->ex->client_requested_flags = client_requested_flags;
>+	creds->ex->auth_time = now;
> 	creds->ex->client_sid = *client_sid;
> 
> 	if (negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>diff --git a/libcli/auth/proto.h b/libcli/auth/proto.h
>index edc3284d32cd..3094292657ab 100644
>--- a/libcli/auth/proto.h
>+++ b/libcli/auth/proto.h
>@@ -69,6 +69,7 @@ struct netlogon_creds_CredentialState *netlogon_creds_server_init(TALLOC_CTX *me
> 								  const struct samr_Password *machine_password,
> 								  const struct netr_Credential *credentials_in,
> 								  struct netr_Credential *credentials_out,
>+								  uint32_t client_requested_flags,
> 								  const struct dom_sid *client_sid,
> 								  uint32_t negotiate_flags);
> NTSTATUS netlogon_creds_server_step_check(struct netlogon_creds_CredentialState *creds,
>diff --git a/librpc/idl/schannel.idl b/librpc/idl/schannel.idl
>index ad296f48d845..619e9e5591c6 100644
>--- a/librpc/idl/schannel.idl
>+++ b/librpc/idl/schannel.idl
>@@ -22,6 +22,8 @@ interface schannel
> 		 * On the server we use CLEAR_IF_FIRST,
> 		 * so db layout changes don't matter there.
> 		 */
>+		netr_NegotiateFlags client_requested_flags;
>+		NTTIME auth_time;
> 		dom_sid client_sid;
> 	} netlogon_creds_CredentialState_extra_info;
> 
>diff --git a/source3/rpc_server/netlogon/srv_netlog_nt.c b/source3/rpc_server/netlogon/srv_netlog_nt.c
>index bce18636b523..384191f76e49 100644
>--- a/source3/rpc_server/netlogon/srv_netlog_nt.c
>+++ b/source3/rpc_server/netlogon/srv_netlog_nt.c
>@@ -1010,6 +1010,7 @@ NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p,
> 					   &mach_pwd,
> 					   r->in.credentials,
> 					   r->out.return_credentials,
>+					   in_neg_flags,
> 					   &sid,
> 					   neg_flags);
> 	if (!creds) {
>diff --git a/source4/rpc_server/netlogon/dcerpc_netlogon.c b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>index 439383cafc68..4fb2a7774049 100644
>--- a/source4/rpc_server/netlogon/dcerpc_netlogon.c
>+++ b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>@@ -416,6 +416,7 @@ static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
> 				      "samAccountName",
> 				      NULL};
> 	uint32_t server_flags = 0;
>+	uint32_t client_flags = 0;
> 	uint32_t negotiate_flags = 0;
> 
> 	ZERO_STRUCTP(r->out.return_credentials);
>@@ -509,7 +510,8 @@ static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
> 	 * NETLOGON_NEG_STRONG_KEYS from server_flags...
> 	 */
> 
>-	negotiate_flags = *r->in.negotiate_flags & server_flags;
>+	client_flags = *r->in.negotiate_flags;
>+	negotiate_flags = client_flags & server_flags;
> 
> 	switch (r->in.secure_channel_type) {
> 	case SEC_CHAN_WKSTA:
>@@ -782,6 +784,7 @@ static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
> 					   curNtHash,
> 					   r->in.credentials,
> 					   r->out.return_credentials,
>+					   client_flags,
> 					   *sid,
> 					   negotiate_flags);
> 	if (creds == NULL && prevNtHash != NULL) {
>@@ -800,6 +803,7 @@ static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
> 						   prevNtHash,
> 						   r->in.credentials,
> 						   r->out.return_credentials,
>+						   client_flags,
> 						   *sid,
> 						   negotiate_flags);
> 	}
>-- 
>2.34.1
>
>
>From d9c1584a524107da4207f6bf8bab992d2dcfbc63 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 19 Jul 2023 18:03:09 +0200
>Subject: [PATCH 29/69] s3:rpc_server/netlogon: implement
> netr_LogonGetCapabilities query_level=2
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 484a046d8e179a3b21ead8b5bc3660095314e816)
>---
> source3/rpc_server/netlogon/srv_netlog_nt.c | 17 ++++++++++-------
> 1 file changed, 10 insertions(+), 7 deletions(-)
>
>diff --git a/source3/rpc_server/netlogon/srv_netlog_nt.c b/source3/rpc_server/netlogon/srv_netlog_nt.c
>index 384191f76e49..fb5894ffefb2 100644
>--- a/source3/rpc_server/netlogon/srv_netlog_nt.c
>+++ b/source3/rpc_server/netlogon/srv_netlog_nt.c
>@@ -2307,12 +2307,7 @@ NTSTATUS _netr_LogonGetCapabilities(struct pipes_struct *p,
> 	case 1:
> 		break;
> 	case 2:
>-		/*
>-		 * Until we know the details behind KB5028166
>-		 * just return DCERPC_NCA_S_FAULT_INVALID_TAG
>-		 * like an unpatched Windows Server.
>-		 */
>-		FALL_THROUGH;
>+		break;
> 	default:
> 		/*
> 		 * There would not be a way to marshall the
>@@ -2340,7 +2335,15 @@ NTSTATUS _netr_LogonGetCapabilities(struct pipes_struct *p,
> 		return status;
> 	}
> 
>-	r->out.capabilities->server_capabilities = creds->negotiate_flags;
>+	switch (r->in.query_level) {
>+	case 1:
>+		r->out.capabilities->server_capabilities = creds->negotiate_flags;
>+		break;
>+	case 2:
>+		r->out.capabilities->requested_flags =
>+			creds->ex->client_requested_flags;
>+		break;
>+	}
> 
> 	return NT_STATUS_OK;
> }
>-- 
>2.34.1
>
>
>From ce267465049e4dc39249b27b471c7301358122c7 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 19 Jul 2023 18:00:31 +0200
>Subject: [PATCH 30/69] s4:rpc_server/netlogon: implement
> netr_LogonGetCapabilities query_level=2
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit fd4b027511b18615e215b66183f95b54bcab683e)
>---
> source4/rpc_server/netlogon/dcerpc_netlogon.c | 17 ++++++++++-------
> 1 file changed, 10 insertions(+), 7 deletions(-)
>
>diff --git a/source4/rpc_server/netlogon/dcerpc_netlogon.c b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>index 4fb2a7774049..1e23c4450cd6 100644
>--- a/source4/rpc_server/netlogon/dcerpc_netlogon.c
>+++ b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>@@ -2400,12 +2400,7 @@ static NTSTATUS dcesrv_netr_LogonGetCapabilities(struct dcesrv_call_state *dce_c
> 	case 1:
> 		break;
> 	case 2:
>-		/*
>-		 * Until we know the details behind KB5028166
>-		 * just return DCERPC_NCA_S_FAULT_INVALID_TAG
>-		 * like an unpatched Windows Server.
>-		 */
>-		FALL_THROUGH;
>+		break;
> 	default:
> 		/*
> 		 * There would not be a way to marshall the
>@@ -2431,7 +2426,15 @@ static NTSTATUS dcesrv_netr_LogonGetCapabilities(struct dcesrv_call_state *dce_c
> 	}
> 	NT_STATUS_NOT_OK_RETURN(status);
> 
>-	r->out.capabilities->server_capabilities = creds->negotiate_flags;
>+	switch (r->in.query_level) {
>+	case 1:
>+		r->out.capabilities->server_capabilities = creds->negotiate_flags;
>+		break;
>+	case 2:
>+		r->out.capabilities->requested_flags =
>+					creds->ex->client_requested_flags;
>+		break;
>+	}
> 
> 	return NT_STATUS_OK;
> }
>-- 
>2.34.1
>
>
>From 5c97ad98543858eaa914d36b138236aaea5c46e5 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Tue, 29 Oct 2024 09:27:30 +0100
>Subject: [PATCH 31/69] s4:torture/rpc: let test_netlogon_capabilities() fail
> on legacy servers
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 498fc88c155b57a0de6150c3b1e3cfcac181d45b)
>---
> source4/torture/rpc/netlogon.c | 21 ++++++++-------------
> 1 file changed, 8 insertions(+), 13 deletions(-)
>
>diff --git a/source4/torture/rpc/netlogon.c b/source4/torture/rpc/netlogon.c
>index beac67c4c5bf..6b74de03db2d 100644
>--- a/source4/torture/rpc/netlogon.c
>+++ b/source4/torture/rpc/netlogon.c
>@@ -2110,10 +2110,10 @@ bool test_netlogon_capabilities(struct dcerpc_pipe *p, struct torture_context *t
> 	netlogon_creds_client_authenticator(&tmp_creds, &auth);
> 
> 	status = dcerpc_netr_LogonGetCapabilities_r(b, tctx, &r);
>-	torture_assert_ntstatus_ok(tctx, status, "LogonGetCapabilities failed");
>-	if (NT_STATUS_EQUAL(r.out.result, NT_STATUS_NOT_IMPLEMENTED)) {
>-		return true;
>-	}
>+	torture_assert_ntstatus_ok(tctx, status,
>+			"LogonGetCapabilities query_level=1 failed");
>+	torture_assert_ntstatus_ok(tctx, r.out.result,
>+			"LogonGetCapabilities query_level=1 failed");
> 
> 	*creds = tmp_creds;
> 
>@@ -2141,15 +2141,10 @@ bool test_netlogon_capabilities(struct dcerpc_pipe *p, struct torture_context *t
> 	netlogon_creds_client_authenticator(&tmp_creds, &auth);
> 
> 	status = dcerpc_netr_LogonGetCapabilities_r(b, tctx, &r);
>-	if (NT_STATUS_EQUAL(status, NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE)) {
>-		/*
>-		 * an server without KB5028166 returns
>-		 * DCERPC_NCA_S_FAULT_INVALID_TAG =>
>-		 * NT_STATUS_RPC_ENUM_VALUE_OUT_OF_RANGE
>-		 */
>-		return true;
>-	}
>-	torture_assert_ntstatus_ok(tctx, status, "LogonGetCapabilities query_level=2 failed");
>+	torture_assert_ntstatus_ok(tctx, status,
>+			"LogonGetCapabilities query_level=2 failed");
>+	torture_assert_ntstatus_ok(tctx, r.out.result,
>+			"LogonGetCapabilities query_level=2 failed");
> 
> 	*creds = tmp_creds;
> 
>-- 
>2.34.1
>
>
>From 64fa571913144bc76ac0820bc070587f3908446b Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 2 Oct 2024 19:06:59 +0200
>Subject: [PATCH 32/69] libcli/auth: also use
> netlogon_creds_CredentialState_extra_info for the client
>
>In order to allow backports and cluster updates we simulate a
>dom_sid, so that the old code is able to parse the blob.
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 8b972fea0978101575f847eac33b09d2fd8d02e7)
>---
> libcli/auth/credentials.c             | 15 ++++++++-
> libcli/auth/netlogon_creds_cli.c      | 13 ++++++--
> libcli/auth/proto.h                   |  1 +
> librpc/idl/schannel.idl               | 47 ++++++++++++++++++++++++++-
> source4/librpc/rpc/dcerpc_schannel.c  |  1 +
> source4/torture/ntp/ntp_signd.c       |  1 +
> source4/torture/rpc/lsa.c             |  2 ++
> source4/torture/rpc/netlogon.c        | 22 +++++++++++++
> source4/torture/rpc/netlogon_crypto.c |  1 +
> source4/torture/rpc/samba3rpc.c       |  8 +++--
> 10 files changed, 104 insertions(+), 7 deletions(-)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index 59db4bc28ea7..75ac4ddb0f24 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -491,16 +491,19 @@ struct netlogon_creds_CredentialState *netlogon_creds_client_init(TALLOC_CTX *me
> 								  const struct netr_Credential *server_challenge,
> 								  const struct samr_Password *machine_password,
> 								  struct netr_Credential *initial_credential,
>+								  uint32_t client_requested_flags,
> 								  uint32_t negotiate_flags)
> {
> 	struct netlogon_creds_CredentialState *creds = talloc_zero(mem_ctx, struct netlogon_creds_CredentialState);
>+	struct timeval tv = timeval_current();
>+	NTTIME now = timeval_to_nttime(&tv);
> 	NTSTATUS status;
> 
> 	if (!creds) {
> 		return NULL;
> 	}
> 
>-	creds->sequence = time(NULL);
>+	creds->sequence = tv.tv_sec;
> 	creds->negotiate_flags = negotiate_flags;
> 	creds->secure_channel_type = secure_channel_type;
> 
>@@ -515,6 +518,16 @@ struct netlogon_creds_CredentialState *netlogon_creds_client_init(TALLOC_CTX *me
> 		return NULL;
> 	}
> 
>+	creds->ex = talloc_zero(creds,
>+			struct netlogon_creds_CredentialState_extra_info);
>+	if (creds->ex == NULL) {
>+		talloc_free(creds);
>+		return NULL;
>+	}
>+	creds->ex->client_requested_flags = client_requested_flags;
>+	creds->ex->auth_time = now;
>+	creds->ex->client_sid = global_sid_NULL;
>+
> 	dump_data_pw("Client chall", client_challenge->data, sizeof(client_challenge->data));
> 	dump_data_pw("Server chall", server_challenge->data, sizeof(server_challenge->data));
> 	dump_data_pw("Machine Pass", machine_password->hash, sizeof(machine_password->hash));
>diff --git a/libcli/auth/netlogon_creds_cli.c b/libcli/auth/netlogon_creds_cli.c
>index 40a40cb99aed..35a5462ff2e7 100644
>--- a/libcli/auth/netlogon_creds_cli.c
>+++ b/libcli/auth/netlogon_creds_cli.c
>@@ -1355,6 +1355,7 @@ static void netlogon_creds_cli_auth_challenge_done(struct tevent_req *subreq)
> 						  &state->server_challenge,
> 						  state->used_nt_hash,
> 						  &state->client_credential,
>+						  state->context->client.proposed_flags,
> 						  state->current_flags);
> 	if (tevent_req_nomem(state->creds, req)) {
> 		return;
>@@ -1558,6 +1559,7 @@ static void netlogon_creds_cli_auth_srvauth_done(struct tevent_req *subreq)
> 		return;
> 	}
> 
>+	state->creds->ex->client_sid.sub_auths[0] = state->rid;
> 	status = netlogon_creds_cli_store_internal(state->context,
> 						   state->creds);
> 	if (tevent_req_nterror(req, status)) {
>@@ -1935,6 +1937,7 @@ static void netlogon_creds_cli_check_client_caps(struct tevent_req *subreq)
> 	struct netlogon_creds_cli_check_state *state =
> 		tevent_req_data(req,
> 		struct netlogon_creds_cli_check_state);
>+	uint32_t requested_flags;
> 	NTSTATUS status;
> 	NTSTATUS result;
> 	bool ok;
>@@ -1986,9 +1989,13 @@ static void netlogon_creds_cli_check_client_caps(struct tevent_req *subreq)
> 		return;
> 	}
> 
>-	if (state->client_caps.requested_flags !=
>-	    state->context->client.proposed_flags)
>-	{
>+	if (state->creds->ex != NULL) {
>+		requested_flags = state->creds->ex->client_requested_flags;
>+	} else {
>+		requested_flags = state->context->client.proposed_flags;
>+	}
>+
>+	if (state->client_caps.requested_flags != requested_flags) {
> 		status = NT_STATUS_DOWNGRADE_DETECTED;
> 		tevent_req_nterror(req, status);
> 		netlogon_creds_cli_check_cleanup(req, status);
>diff --git a/libcli/auth/proto.h b/libcli/auth/proto.h
>index 3094292657ab..ae68aab192a9 100644
>--- a/libcli/auth/proto.h
>+++ b/libcli/auth/proto.h
>@@ -46,6 +46,7 @@ struct netlogon_creds_CredentialState *netlogon_creds_client_init(TALLOC_CTX *me
> 								  const struct netr_Credential *server_challenge,
> 								  const struct samr_Password *machine_password,
> 								  struct netr_Credential *initial_credential,
>+								  uint32_t client_requested_flags,
> 								  uint32_t negotiate_flags);
> NTSTATUS
> netlogon_creds_client_authenticator(struct netlogon_creds_CredentialState *creds,
>diff --git a/librpc/idl/schannel.idl b/librpc/idl/schannel.idl
>index 619e9e5591c6..8905d514f557 100644
>--- a/librpc/idl/schannel.idl
>+++ b/librpc/idl/schannel.idl
>@@ -20,8 +20,53 @@ interface schannel
> 		 * with a single dom_sid for the client_sid.
> 		 *
> 		 * On the server we use CLEAR_IF_FIRST,
>-		 * so db layout changes don't matter there.
>+		 * so db layout changes don't matter there,
>+		 * but on the client side we need to handle
>+		 * the ctdb case were CLEAR_IF_FIRST only
>+		 * works if all cluster nodes are restarted.
>+		 *
>+		 * As this was a single dom_sid before,
>+		 * we add some magic in order to let
>+		 * old code (on other nodes to parse the new layout).
>+		 *
>+		 * We have basically this definition of dom_sid:
>+		 *
>+		 * typedef struct {
>+		 *    uint8 sid_rev_num;
>+		 *    [range(0,15)] int8 num_auths;
>+		 *    uint8  id_auth[6];
>+		 *    uint32 sub_auths[num_auths];
>+		 * } dom_sid;
>+		 *
>+		 * It means it consumes at least 8 bytes while
>+		 * and it's also 4 byte aligned (before sid_rev_num).
>+		 * The largest sid would have 68 bytes.
>+		 *
>+		 * The old client side code would see a sid like
>+		 * this: S-1-RSV-CRF-ATL-ATH-257-0-RID
>+		 *
>+		 * RSV => reserved (the last 4 bytes of id_auth)
>+		 *
>+		 * CRF => client_requested_flags (sub_auths[0]
>+		 *
>+		 * Note NTTIME used ndr_pull_udlong, it's not NTTIME_hyper!
>+		 * ATL => low 4 bytes of auth_time (sub_auths[1])
>+		 * ATH => high 4 bytes of auth_time (sub_auths[2])
>+		 *
>+		 * From client_sid (S-1-0-RID): sub_auth[3-5]
>+		 *
>+		 * 257 => 0x01 0x01 0x00 0x00 =
>+		 *        (sid_rev_num = 1, num_auths =1,
>+		 *         id_auth[0] = 0, id_auth[1] = 0)
>+		 * 0   => id_auth[2-6]
>+		 *
>+		 * RID => the RID of the client
>+		 *
>+		 * It means the magic needs to simulate
>+		 * num_auths = 6
> 		 */
>+		[value(0x00000601)] uint32 magic;
>+		[value(0)] uint32 reserved;
> 		netr_NegotiateFlags client_requested_flags;
> 		NTTIME auth_time;
> 		dom_sid client_sid;
>diff --git a/source4/librpc/rpc/dcerpc_schannel.c b/source4/librpc/rpc/dcerpc_schannel.c
>index 9d96abd2521e..ca0495c4d472 100644
>--- a/source4/librpc/rpc/dcerpc_schannel.c
>+++ b/source4/librpc/rpc/dcerpc_schannel.c
>@@ -197,6 +197,7 @@ static void continue_srv_challenge(struct tevent_req *subreq)
> 					      s->a.in.secure_channel_type,
> 					      &s->credentials1, &s->credentials2,
> 					      s->mach_pwd, &s->credentials3,
>+					      s->requested_negotiate_flags,
> 					      s->local_negotiate_flags);
> 	if (composite_nomem(s->creds, c)) {
> 		return;
>diff --git a/source4/torture/ntp/ntp_signd.c b/source4/torture/ntp/ntp_signd.c
>index fd7da67c5518..2bf8e0fe1272 100644
>--- a/source4/torture/ntp/ntp_signd.c
>+++ b/source4/torture/ntp/ntp_signd.c
>@@ -119,6 +119,7 @@ static bool test_ntp_signd(struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2, 
> 					   pwhash, &credentials3,
>+					   negotiate_flags,
> 					   negotiate_flags);
> 	
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>diff --git a/source4/torture/rpc/lsa.c b/source4/torture/rpc/lsa.c
>index c2190e55da37..25dde5485e1c 100644
>--- a/source4/torture/rpc/lsa.c
>+++ b/source4/torture/rpc/lsa.c
>@@ -3064,6 +3064,7 @@ static bool check_pw_with_ServerAuthenticate3(struct dcerpc_pipe *p,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   new_password, &credentials3,
>+					   negotiate_flags,
> 					   negotiate_flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -3089,6 +3090,7 @@ static bool check_pw_with_ServerAuthenticate3(struct dcerpc_pipe *p,
> 						   a.in.secure_channel_type,
> 						   &credentials1, &credentials2,
> 						   old_password, &credentials3,
>+						   negotiate_flags,
> 						   negotiate_flags);
> 
> 		torture_assert(tctx, creds != NULL, "memory allocation");
>diff --git a/source4/torture/rpc/netlogon.c b/source4/torture/rpc/netlogon.c
>index 6b74de03db2d..2ce0acb160a8 100644
>--- a/source4/torture/rpc/netlogon.c
>+++ b/source4/torture/rpc/netlogon.c
>@@ -180,6 +180,7 @@ bool test_SetupCredentials(struct dcerpc_pipe *p, struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   mach_password, &credentials3,
>+					   0,
> 					   0);
> 	torture_assert(tctx, creds != NULL, "memory allocation");
> 
>@@ -251,6 +252,7 @@ bool test_SetupCredentials2ex(struct dcerpc_pipe *p, struct torture_context *tct
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   mach_password, &credentials3,
>+					   negotiate_flags,
> 					   negotiate_flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -349,6 +351,7 @@ bool test_SetupCredentials3(struct dcerpc_pipe *p, struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   &mach_password, &credentials3,
>+					   negotiate_flags,
> 					   negotiate_flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -421,6 +424,7 @@ bool test_SetupCredentialsDowngrade(struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   &mach_password, &credentials3,
>+					   negotiate_flags,
> 					   negotiate_flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -437,6 +441,7 @@ bool test_SetupCredentialsDowngrade(struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   &mach_password, &credentials3,
>+					   negotiate_flags,
> 					   negotiate_flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -541,6 +546,7 @@ static bool test_ServerReqChallenge(
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   mach_password, &credentials3,
>+					   in_negotiate_flags,
> 					   in_negotiate_flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -618,6 +624,7 @@ static bool test_ServerReqChallenge_zero_challenge(
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   mach_password, &credentials3,
>+					   in_negotiate_flags,
> 					   in_negotiate_flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -702,6 +709,7 @@ static bool test_ServerReqChallenge_5_repeats(
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   mach_password, &credentials3,
>+					   in_negotiate_flags,
> 					   in_negotiate_flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -788,6 +796,7 @@ static bool test_ServerReqChallenge_4_repeats(
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   mach_password, &credentials3,
>+					   in_negotiate_flags,
> 					   in_negotiate_flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -881,6 +890,7 @@ static bool test_ServerAuthenticate2_encrypts_to_zero(
> 			&credentials2,
> 			mach_password,
> 			&credentials3,
>+			flags,
> 			flags);
> 
> 		torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -2272,6 +2282,7 @@ static bool test_ServerReqChallengeGlobal(struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   &mach_password, &credentials3,
>+					   flags,
> 					   flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -2361,6 +2372,7 @@ static bool test_ServerReqChallengeReuseGlobal(struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   &mach_password, &credentials3,
>+					   flags,
> 					   flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -2378,6 +2390,7 @@ static bool test_ServerReqChallengeReuseGlobal(struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   &mach_password, &credentials3,
>+					   flags,
> 					   flags);
> 
> 	torture_assert_ntstatus_ok(tctx, dcerpc_netr_ServerAuthenticate3_r(b3, tctx, &a),
>@@ -2450,6 +2463,7 @@ static bool test_ServerReqChallengeReuseGlobal2(struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   &mach_password, &credentials3,
>+					   flags,
> 					   flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -2467,6 +2481,7 @@ static bool test_ServerReqChallengeReuseGlobal2(struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   &mach_password, &credentials3,
>+					   flags,
> 					   flags);
> 
> 	torture_assert_ntstatus_ok(tctx, dcerpc_netr_ServerAuthenticate3_r(b2, tctx, &a),
>@@ -2540,6 +2555,7 @@ static bool test_ServerReqChallengeReuseGlobal3(struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   &mach_password, &credentials3,
>+					   flags,
> 					   flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -2557,6 +2573,7 @@ static bool test_ServerReqChallengeReuseGlobal3(struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   &mach_password, &credentials3,
>+					   flags,
> 					   flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -2655,6 +2672,7 @@ static bool test_ServerReqChallengeReuseGlobal4(struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   &mach_password, &credentials3,
>+					   flags,
> 					   flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -2672,6 +2690,7 @@ static bool test_ServerReqChallengeReuseGlobal4(struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   &mach_password, &credentials3,
>+					   flags,
> 					   flags);
> 
> 	torture_assert_ntstatus_ok(tctx, dcerpc_netr_ServerAuthenticate3_r(b1, tctx, &a),
>@@ -2731,6 +2750,7 @@ static bool test_ServerReqChallengeReuse(struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   &mach_password, &credentials3,
>+					   flags,
> 					   flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>@@ -2748,6 +2768,7 @@ static bool test_ServerReqChallengeReuse(struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   &mach_password, &credentials3,
>+					   flags,
> 					   flags);
> 
> 	torture_assert_ntstatus_ok(tctx, dcerpc_netr_ServerAuthenticate3_r(b, tctx, &a),
>@@ -2762,6 +2783,7 @@ static bool test_ServerReqChallengeReuse(struct torture_context *tctx,
> 					   a.in.secure_channel_type,
> 					   &credentials1, &credentials2,
> 					   &mach_password, &credentials3,
>+					   flags,
> 					   flags);
> 
> 	torture_assert(tctx, creds != NULL, "memory allocation");
>diff --git a/source4/torture/rpc/netlogon_crypto.c b/source4/torture/rpc/netlogon_crypto.c
>index eec8a7531791..858a17e0ea8b 100644
>--- a/source4/torture/rpc/netlogon_crypto.c
>+++ b/source4/torture/rpc/netlogon_crypto.c
>@@ -124,6 +124,7 @@ static bool test_ServerAuth3Crypto(struct dcerpc_pipe *p,
> 						 &netr_creds2,
> 						 &machine_password,
> 						 &netr_creds3,
>+						 negotiate_flags,
> 						 negotiate_flags);
> 	GNUTLS_FIPS140_SET_STRICT_MODE();
> 	/* Test that we fail to encrypt with RC4 */
>diff --git a/source4/torture/rpc/samba3rpc.c b/source4/torture/rpc/samba3rpc.c
>index 10f0fccde73f..96ff34f52700 100644
>--- a/source4/torture/rpc/samba3rpc.c
>+++ b/source4/torture/rpc/samba3rpc.c
>@@ -1091,7 +1091,9 @@ static bool auth2(struct torture_context *tctx,
> 						 a.in.secure_channel_type,
> 						 r.in.credentials,
> 						 r.out.return_credentials, &mach_pw,
>-						 &netr_cred, negotiate_flags);
>+						 &netr_cred,
>+						 negotiate_flags,
>+						 negotiate_flags);
> 	torture_assert(tctx, (creds_state != NULL), "memory allocation failed");
> 
> 	status = dcerpc_netr_ServerAuthenticate2_r(net_handle, mem_ctx, &a);
>@@ -2158,7 +2160,9 @@ static bool torture_samba3_rpc_randomauth2(struct torture_context *torture)
> 						 a.in.secure_channel_type,
> 						 r.in.credentials,
> 						 r.out.return_credentials, &mach_pw,
>-						 &netr_cred, negotiate_flags);
>+						 &netr_cred,
>+						 negotiate_flags,
>+						 negotiate_flags);
> 	torture_assert(torture, (creds_state != NULL), "memory allocation failed");
> 
> 	status = dcerpc_netr_ServerAuthenticate2_r(net_handle, mem_ctx, &a);
>-- 
>2.34.1
>
>
>From 2472c8800840709ac2ef9f0ed9d24d1697644d80 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Thu, 10 Oct 2024 13:24:37 +0200
>Subject: [PATCH 33/69] libcli/auth: let netlogon_creds_cli_store_internal()
> use talloc_stackframe()
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 17394ed7bbf8fa50570a5732f1ce84ccd5e69393)
>---
> libcli/auth/netlogon_creds_cli.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
>diff --git a/libcli/auth/netlogon_creds_cli.c b/libcli/auth/netlogon_creds_cli.c
>index 35a5462ff2e7..1b9d26171e10 100644
>--- a/libcli/auth/netlogon_creds_cli.c
>+++ b/libcli/auth/netlogon_creds_cli.c
>@@ -747,6 +747,7 @@ static NTSTATUS netlogon_creds_cli_store_internal(
> 	struct netlogon_creds_cli_context *context,
> 	struct netlogon_creds_CredentialState *creds)
> {
>+	TALLOC_CTX *frame = talloc_stackframe();
> 	NTSTATUS status;
> 	enum ndr_err_code ndr_err;
> 	DATA_BLOB blob;
>@@ -756,10 +757,11 @@ static NTSTATUS netlogon_creds_cli_store_internal(
> 		NDR_PRINT_DEBUG(netlogon_creds_CredentialState, creds);
> 	}
> 
>-	ndr_err = ndr_push_struct_blob(&blob, creds, creds,
>+	ndr_err = ndr_push_struct_blob(&blob, frame, creds,
> 		(ndr_push_flags_fn_t)ndr_push_netlogon_creds_CredentialState);
> 	if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
> 		status = ndr_map_error2ntstatus(ndr_err);
>+		TALLOC_FREE(frame);
> 		return status;
> 	}
> 
>@@ -769,11 +771,12 @@ static NTSTATUS netlogon_creds_cli_store_internal(
> 	status = dbwrap_store(context->db.ctx,
> 			      context->db.key_data,
> 			      data, TDB_REPLACE);
>-	TALLOC_FREE(data.dptr);
> 	if (!NT_STATUS_IS_OK(status)) {
>+		TALLOC_FREE(frame);
> 		return status;
> 	}
> 
>+	TALLOC_FREE(frame);
> 	return NT_STATUS_OK;
> }
> 
>-- 
>2.34.1
>
>
>From 4e8d1b22437a12b0d936697a4298b94bb448e9d9 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Thu, 10 Oct 2024 13:39:38 +0200
>Subject: [PATCH 34/69] libcli/auth: let netlogon_creds_cli_store_internal
> check netlogon_creds_CredentialState_legacy
>
>Before storing the structure into a ctdb managed volatile database
>we check against netlogon_creds_CredentialState_legacy (the structure
>used before recent changes). This makes sure unpatched cluster nodes
>would not get a parsing error.
>
>We'll remove this again in master when we try to implement
>netr_ServerAuthenticateKerberos() and the related changes
>to netlogon_creds_CredentialState, which will break the compat...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 3792fe372884aad6ea2893f2e62629dd1cddc129)
>---
> libcli/auth/netlogon_creds_cli.c | 13 +++++++++++++
> librpc/idl/schannel.idl          | 13 +++++++++++++
> 2 files changed, 26 insertions(+)
>
>diff --git a/libcli/auth/netlogon_creds_cli.c b/libcli/auth/netlogon_creds_cli.c
>index 1b9d26171e10..07547a9178ce 100644
>--- a/libcli/auth/netlogon_creds_cli.c
>+++ b/libcli/auth/netlogon_creds_cli.c
>@@ -752,6 +752,7 @@ static NTSTATUS netlogon_creds_cli_store_internal(
> 	enum ndr_err_code ndr_err;
> 	DATA_BLOB blob;
> 	TDB_DATA data;
>+	struct netlogon_creds_CredentialState_legacy lc = { .sequence = 0, };
> 
> 	if (DEBUGLEVEL >= 10) {
> 		NDR_PRINT_DEBUG(netlogon_creds_CredentialState, creds);
>@@ -765,6 +766,18 @@ static NTSTATUS netlogon_creds_cli_store_internal(
> 		return status;
> 	}
> 
>+	ndr_err = ndr_pull_struct_blob_all(&blob, frame, &lc,
>+		(ndr_pull_flags_fn_t)ndr_pull_netlogon_creds_CredentialState_legacy);
>+	if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
>+		status = ndr_map_error2ntstatus(ndr_err);
>+		TALLOC_FREE(frame);
>+		return status;
>+	}
>+
>+	if (DEBUGLEVEL >= 11) {
>+		NDR_PRINT_DEBUG(netlogon_creds_CredentialState_legacy, &lc);
>+	}
>+
> 	data.dptr = blob.data;
> 	data.dsize = blob.length;
> 
>diff --git a/librpc/idl/schannel.idl b/librpc/idl/schannel.idl
>index 8905d514f557..9fe4b7aed7c7 100644
>--- a/librpc/idl/schannel.idl
>+++ b/librpc/idl/schannel.idl
>@@ -85,6 +85,19 @@ interface schannel
> 		netlogon_creds_CredentialState_extra_info *ex;
> 	} netlogon_creds_CredentialState;
> 
>+	typedef [public,flag(NDR_PAHEX)] struct {
>+		netr_NegotiateFlags negotiate_flags;
>+		uint8 session_key[16];
>+		uint32 sequence;
>+		netr_Credential seed;
>+		netr_Credential client;
>+		netr_Credential server;
>+		netr_SchannelType secure_channel_type;
>+		[string,charset(UTF8)] uint8 computer_name[];
>+		[string,charset(UTF8)] uint8 account_name[];
>+		dom_sid *sid;
>+	} netlogon_creds_CredentialState_legacy;
>+
> 	/* This is used in the schannel_store.tdb */
> 	typedef [public] struct {
> 		[string,charset(UTF16)] uint16 *computer_name;
>-- 
>2.34.1
>
>
>From db51d077ed64fd780fae645674a73064dea02dde Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 16 Oct 2024 17:47:22 +0200
>Subject: [PATCH 35/69] libcli/auth: split out netlogon_creds_alloc()
>
>Review with: git show --patience
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit e9767315cf06bcb257b40014441dd4cd9aad0fb0)
>---
> libcli/auth/credentials.c | 118 +++++++++++++++++++++-----------------
> 1 file changed, 65 insertions(+), 53 deletions(-)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index 75ac4ddb0f24..c9c8ddb5394d 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -473,37 +473,27 @@ NTSTATUS netlogon_creds_aes_decrypt(struct netlogon_creds_CredentialState *creds
> 	return NT_STATUS_OK;
> }
> 
>-/*****************************************************************
>-The above functions are common to the client and server interface
>-next comes the client specific functions
>-******************************************************************/
>-
>-/*
>-  initialise the credentials chain and return the first client
>-  credentials
>-*/
>-
>-struct netlogon_creds_CredentialState *netlogon_creds_client_init(TALLOC_CTX *mem_ctx,
>-								  const char *client_account,
>-								  const char *client_computer_name,
>-								  uint16_t secure_channel_type,
>-								  const struct netr_Credential *client_challenge,
>-								  const struct netr_Credential *server_challenge,
>-								  const struct samr_Password *machine_password,
>-								  struct netr_Credential *initial_credential,
>-								  uint32_t client_requested_flags,
>-								  uint32_t negotiate_flags)
>+static struct netlogon_creds_CredentialState *
>+netlogon_creds_alloc(TALLOC_CTX *mem_ctx,
>+		     const char *client_account,
>+		     const char *client_computer_name,
>+		     uint16_t secure_channel_type,
>+		     uint32_t client_requested_flags,
>+		     const struct dom_sid *client_sid,
>+		     uint32_t negotiate_flags)
> {
>-	struct netlogon_creds_CredentialState *creds = talloc_zero(mem_ctx, struct netlogon_creds_CredentialState);
>+	struct netlogon_creds_CredentialState *creds = NULL;
> 	struct timeval tv = timeval_current();
> 	NTTIME now = timeval_to_nttime(&tv);
>-	NTSTATUS status;
> 
>-	if (!creds) {
>+	creds = talloc_zero(mem_ctx, struct netlogon_creds_CredentialState);
>+	if (creds == NULL) {
> 		return NULL;
> 	}
> 
>-	creds->sequence = tv.tv_sec;
>+	if (client_sid == NULL) {
>+		creds->sequence = tv.tv_sec;
>+	}
> 	creds->negotiate_flags = negotiate_flags;
> 	creds->secure_channel_type = secure_channel_type;
> 
>@@ -526,7 +516,49 @@ struct netlogon_creds_CredentialState *netlogon_creds_client_init(TALLOC_CTX *me
> 	}
> 	creds->ex->client_requested_flags = client_requested_flags;
> 	creds->ex->auth_time = now;
>-	creds->ex->client_sid = global_sid_NULL;
>+	if (client_sid != NULL) {
>+		creds->ex->client_sid = *client_sid;
>+	} else {
>+		creds->ex->client_sid = global_sid_NULL;
>+	}
>+
>+	return creds;
>+}
>+
>+/*****************************************************************
>+The above functions are common to the client and server interface
>+next comes the client specific functions
>+******************************************************************/
>+
>+/*
>+  initialise the credentials chain and return the first client
>+  credentials
>+*/
>+
>+struct netlogon_creds_CredentialState *netlogon_creds_client_init(TALLOC_CTX *mem_ctx,
>+								  const char *client_account,
>+								  const char *client_computer_name,
>+								  uint16_t secure_channel_type,
>+								  const struct netr_Credential *client_challenge,
>+								  const struct netr_Credential *server_challenge,
>+								  const struct samr_Password *machine_password,
>+								  struct netr_Credential *initial_credential,
>+								  uint32_t client_requested_flags,
>+								  uint32_t negotiate_flags)
>+{
>+	struct netlogon_creds_CredentialState *creds = NULL;
>+	NTSTATUS status;
>+
>+	creds = netlogon_creds_alloc(mem_ctx,
>+				     client_account,
>+				     client_computer_name,
>+				     secure_channel_type,
>+				     client_requested_flags,
>+				     NULL, /* client_sid */
>+				     negotiate_flags);
>+	if (!creds) {
>+		return NULL;
>+	}
> 
> 	dump_data_pw("Client chall", client_challenge->data, sizeof(client_challenge->data));
> 	dump_data_pw("Server chall", server_challenge->data, sizeof(server_challenge->data));
>@@ -674,20 +706,21 @@ struct netlogon_creds_CredentialState *netlogon_creds_server_init(TALLOC_CTX *me
> 								  const struct dom_sid *client_sid,
> 								  uint32_t negotiate_flags)
> {
>-
>-	struct netlogon_creds_CredentialState *creds = talloc_zero(mem_ctx, struct netlogon_creds_CredentialState);
>-	struct timeval tv = timeval_current();
>-	NTTIME now = timeval_to_nttime(&tv);
>+	struct netlogon_creds_CredentialState *creds = NULL;
> 	NTSTATUS status;
> 	bool ok;
> 
>+	creds = netlogon_creds_alloc(mem_ctx,
>+				     client_account,
>+				     client_computer_name,
>+				     secure_channel_type,
>+				     client_requested_flags,
>+				     client_sid,
>+				     negotiate_flags);
> 	if (!creds) {
> 		return NULL;
> 	}
> 
>-	creds->negotiate_flags = negotiate_flags;
>-	creds->secure_channel_type = secure_channel_type;
>-
> 	dump_data_pw("Client chall", client_challenge->data, sizeof(client_challenge->data));
> 	dump_data_pw("Server chall", server_challenge->data, sizeof(server_challenge->data));
> 	dump_data_pw("Machine Pass", machine_password->hash, sizeof(machine_password->hash));
>@@ -706,27 +739,6 @@ struct netlogon_creds_CredentialState *netlogon_creds_server_init(TALLOC_CTX *me
> 		return NULL;
> 	}
> 
>-	creds->computer_name = talloc_strdup(creds, client_computer_name);
>-	if (!creds->computer_name) {
>-		talloc_free(creds);
>-		return NULL;
>-	}
>-	creds->account_name = talloc_strdup(creds, client_account);
>-	if (!creds->account_name) {
>-		talloc_free(creds);
>-		return NULL;
>-	}
>-
>-	creds->ex = talloc_zero(creds,
>-			struct netlogon_creds_CredentialState_extra_info);
>-	if (creds->ex == NULL) {
>-		talloc_free(creds);
>-		return NULL;
>-	}
>-	creds->ex->client_requested_flags = client_requested_flags;
>-	creds->ex->auth_time = now;
>-	creds->ex->client_sid = *client_sid;
>-
> 	if (negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
> 		status = netlogon_creds_init_hmac_sha256(creds,
> 							 client_challenge,
>-- 
>2.34.1
>
>
>From 6734e19e555c319ebea43098e06cd647d72c43c2 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 16 Oct 2024 17:49:26 +0200
>Subject: [PATCH 36/69] s4:dsdb/common: dsdb_trust_get_incoming_passwords only
> needs a const ldb_message
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit f92def2f943917d8946b03f71fcf676998701815)
>---
> source4/dsdb/common/util_trusts.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/source4/dsdb/common/util_trusts.c b/source4/dsdb/common/util_trusts.c
>index 5003e7499b01..34a836a6a6f2 100644
>--- a/source4/dsdb/common/util_trusts.c
>+++ b/source4/dsdb/common/util_trusts.c
>@@ -2646,7 +2646,7 @@ NTSTATUS dsdb_trust_search_tdo_by_sid(struct ldb_context *sam_ctx,
> 	return NT_STATUS_OK;
> }
> 
>-NTSTATUS dsdb_trust_get_incoming_passwords(struct ldb_message *msg,
>+NTSTATUS dsdb_trust_get_incoming_passwords(const struct ldb_message *msg,
> 					   TALLOC_CTX *mem_ctx,
> 					   struct samr_Password **_current,
> 					   struct samr_Password **_previous)
>-- 
>2.34.1
>
>
>From 016c5bcd9c2c8477e1715aa5913a99e5f558ce1a Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 16 Oct 2024 17:55:41 +0200
>Subject: [PATCH 37/69] s4:rpc_server/netlogon: split out
> dcesrv_netr_ServerAuthenticateGeneric()
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit e4132c492ded7cadc60371b524e72e41f71f75e9)
>---
> source4/rpc_server/netlogon/dcerpc_netlogon.c | 179 ++++++++++++------
> 1 file changed, 125 insertions(+), 54 deletions(-)
>
>diff --git a/source4/rpc_server/netlogon/dcerpc_netlogon.c b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>index 1e23c4450cd6..a2c4dbd5292a 100644
>--- a/source4/rpc_server/netlogon/dcerpc_netlogon.c
>+++ b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>@@ -387,14 +387,23 @@ return_downgrade:
> 	return orig_status;
> }
> 
>-/*
>- * Do the actual processing of a netr_ServerAuthenticate3 message.
>- * called from dcesrv_netr_ServerAuthenticate3, which handles the logging.
>- */
>-static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
>+typedef NTSTATUS (*dcesrv_netr_ServerAuthenticateGenericCallback_fn)(
>+	struct dcesrv_call_state *dce_call,
>+	const struct netlogon_server_pipe_state *challenge,
>+	const struct netr_ServerAuthenticate3 *r,
>+	uint32_t client_flags,
>+	const struct dom_sid *client_sid,
>+	uint32_t negotiate_flags,
>+	const struct ldb_message *sam_msg,
>+	const struct ldb_message *tdo_msg,
>+	TALLOC_CTX *mem_ctx,
>+	struct netlogon_creds_CredentialState **_creds);
>+
>+static NTSTATUS dcesrv_netr_ServerAuthenticateGeneric(
> 	struct dcesrv_call_state *dce_call,
> 	TALLOC_CTX *mem_ctx,
> 	struct netr_ServerAuthenticate3 *r,
>+	dcesrv_netr_ServerAuthenticateGenericCallback_fn auth_fn,
> 	const char **trust_account_for_search,
> 	const char **trust_account_in_db,
> 	struct dom_sid **sid)
>@@ -404,11 +413,10 @@ static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
> 	struct netlogon_server_pipe_state challenge;
> 	struct netlogon_creds_CredentialState *creds;
> 	struct ldb_context *sam_ctx;
>-	struct samr_Password *curNtHash = NULL;
>-	struct samr_Password *prevNtHash = NULL;
> 	uint32_t user_account_control;
> 	int num_records;
> 	struct ldb_message **msgs;
>+	struct ldb_message *tdo_msg = NULL;
> 	NTSTATUS nt_status;
> 	static const char *attrs[] = {"unicodePwd",
> 				      "userAccountControl",
>@@ -545,7 +553,6 @@ static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
> 	if (r->in.secure_channel_type == SEC_CHAN_DOMAIN ||
> 	    r->in.secure_channel_type == SEC_CHAN_DNS_DOMAIN)
> 	{
>-		struct ldb_message *tdo_msg = NULL;
> 		static const char *const tdo_attrs[] = {"trustAuthIncoming",
> 							"trustAttributes",
> 							"flatName",
>@@ -614,22 +621,6 @@ static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
> 				nt_status);
> 		}
> 
>-		nt_status = dsdb_trust_get_incoming_passwords(tdo_msg, mem_ctx,
>-							      &curNtHash,
>-							      &prevNtHash);
>-		if (NT_STATUS_EQUAL(nt_status, NT_STATUS_ACCOUNT_DISABLED)) {
>-			return dcesrv_netr_ServerAuthenticate3_check_downgrade(
>-				dce_call, r, pipe_state, negotiate_flags,
>-				NULL, /* trust_account_in_db */
>-				NT_STATUS_NO_TRUST_SAM_ACCOUNT);
>-		}
>-		if (!NT_STATUS_IS_OK(nt_status)) {
>-			return dcesrv_netr_ServerAuthenticate3_check_downgrade(
>-				dce_call, r, pipe_state, negotiate_flags,
>-				NULL, /* trust_account_in_db */
>-				nt_status);
>-		}
>-
> 		flatname = ldb_msg_find_attr_as_string(tdo_msg, "flatName", NULL);
> 		if (flatname == NULL) {
> 			return dcesrv_netr_ServerAuthenticate3_check_downgrade(
>@@ -750,28 +741,92 @@ static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
> 	}
> 
> 	if (!(user_account_control & UF_INTERDOMAIN_TRUST_ACCOUNT)) {
>-		nt_status = samdb_result_passwords_no_lockout(mem_ctx,
>-					dce_call->conn->dce_ctx->lp_ctx,
>-					msgs[0], &curNtHash);
>-		if (!NT_STATUS_IS_OK(nt_status)) {
>-			return NT_STATUS_ACCESS_DENIED;
>-		}
>+		tdo_msg = NULL;
> 	}
> 
>-	if (curNtHash == NULL) {
>+	*sid = samdb_result_dom_sid(mem_ctx, msgs[0], "objectSid");
>+	if (*sid == NULL) {
> 		return NT_STATUS_ACCESS_DENIED;
> 	}
> 
>-	if (!challenge_valid) {
>-		DEBUG(1, ("No challenge requested by client [%s/%s], "
>-			  "cannot authenticate\n",
>-			  log_escape(mem_ctx, r->in.computer_name),
>-			  log_escape(mem_ctx, r->in.account_name)));
>+	nt_status = auth_fn(dce_call,
>+			    challenge_valid ? &challenge : NULL,
>+			    r,
>+			    client_flags,
>+			    *sid,
>+			    negotiate_flags,
>+			    msgs[0],
>+			    tdo_msg,
>+			    mem_ctx,
>+			    &creds);
>+	if (!NT_STATUS_IS_OK(nt_status)) {
>+		ZERO_STRUCTP(r->out.return_credentials);
>+		return nt_status;
>+	}
>+
>+	nt_status = schannel_save_creds_state(mem_ctx,
>+					      dce_call->conn->dce_ctx->lp_ctx,
>+					      creds);
>+	if (!NT_STATUS_IS_OK(nt_status)) {
>+		ZERO_STRUCTP(r->out.return_credentials);
>+		return nt_status;
>+	}
>+
>+	*r->out.rid = samdb_result_rid_from_sid(mem_ctx, msgs[0],
>+						"objectSid", 0);
>+
>+	return NT_STATUS_OK;
>+}
>+
>+static NTSTATUS dcesrv_netr_ServerAuthenticateNTHash_cb(
>+	struct dcesrv_call_state *dce_call,
>+	const struct netlogon_server_pipe_state *challenge,
>+	const struct netr_ServerAuthenticate3 *r,
>+	uint32_t client_flags,
>+	const struct dom_sid *client_sid,
>+	uint32_t negotiate_flags,
>+	const struct ldb_message *sam_msg,
>+	const struct ldb_message *tdo_msg,
>+	TALLOC_CTX *mem_ctx,
>+	struct netlogon_creds_CredentialState **_creds)
>+{
>+	TALLOC_CTX *frame = talloc_stackframe();
>+	struct loadparm_context *lp_ctx = dce_call->conn->dce_ctx->lp_ctx;
>+	struct netlogon_creds_CredentialState *creds = NULL;
>+	struct samr_Password *curNtHash = NULL;
>+	struct samr_Password *prevNtHash = NULL;
>+	NTSTATUS status;
>+
>+	if (tdo_msg != NULL) {
>+		status = dsdb_trust_get_incoming_passwords(tdo_msg,
>+							   frame,
>+							   &curNtHash,
>+							   &prevNtHash);
>+		if (NT_STATUS_EQUAL(status, NT_STATUS_ACCOUNT_DISABLED)) {
>+			status = NT_STATUS_NO_TRUST_SAM_ACCOUNT;
>+		}
>+		if (!NT_STATUS_IS_OK(status)) {
>+			TALLOC_FREE(frame);
>+			return status;
>+		}
>+	} else {
>+		status = samdb_result_passwords_no_lockout(frame,
>+							   lp_ctx,
>+							   sam_msg,
>+							   &curNtHash);
>+		if (!NT_STATUS_IS_OK(status)) {
>+			TALLOC_FREE(frame);
>+			return NT_STATUS_ACCESS_DENIED;
>+		}
>+	}
>+
>+	if (curNtHash == NULL) {
>+		TALLOC_FREE(frame);
> 		return NT_STATUS_ACCESS_DENIED;
> 	}
> 
>-	*sid = samdb_result_dom_sid(mem_ctx, msgs[0], "objectSid");
>-	if (*sid == NULL) {
>+	if (challenge == NULL) {
>+		TALLOC_FREE(frame);
> 		return NT_STATUS_ACCESS_DENIED;
> 	}
> 
>@@ -779,13 +834,13 @@ static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
> 					   r->in.account_name,
> 					   r->in.computer_name,
> 					   r->in.secure_channel_type,
>-					   &challenge.client_challenge,
>-					   &challenge.server_challenge,
>+					   &challenge->client_challenge,
>+					   &challenge->server_challenge,
> 					   curNtHash,
> 					   r->in.credentials,
> 					   r->out.return_credentials,
> 					   client_flags,
>-					   *sid,
>+					   client_sid,
> 					   negotiate_flags);
> 	if (creds == NULL && prevNtHash != NULL) {
> 		/*
>@@ -798,32 +853,48 @@ static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
> 						   r->in.account_name,
> 						   r->in.computer_name,
> 						   r->in.secure_channel_type,
>-						   &challenge.client_challenge,
>-						   &challenge.server_challenge,
>+						   &challenge->client_challenge,
>+						   &challenge->server_challenge,
> 						   prevNtHash,
> 						   r->in.credentials,
> 						   r->out.return_credentials,
> 						   client_flags,
>-						   *sid,
>+						   client_sid,
> 						   negotiate_flags);
> 	}
> 
> 	if (creds == NULL) {
>+		TALLOC_FREE(frame);
> 		return NT_STATUS_ACCESS_DENIED;
> 	}
> 
>-	nt_status = schannel_save_creds_state(mem_ctx,
>-					      dce_call->conn->dce_ctx->lp_ctx,
>-					      creds);
>-	if (!NT_STATUS_IS_OK(nt_status)) {
>-		ZERO_STRUCTP(r->out.return_credentials);
>-		return nt_status;
>-	}
>+	*_creds = creds;
>+	TALLOC_FREE(frame);
>+	return NT_STATUS_OK;
>+}
> 
>-	*r->out.rid = samdb_result_rid_from_sid(mem_ctx, msgs[0],
>-						"objectSid", 0);
>+/*
>+ * Do the actual processing of a netr_ServerAuthenticate3 message.
>+ * called from dcesrv_netr_ServerAuthenticate3, which handles the logging.
>+ */
>+static NTSTATUS dcesrv_netr_ServerAuthenticate3_helper(
>+	struct dcesrv_call_state *dce_call,
>+	TALLOC_CTX *mem_ctx,
>+	struct netr_ServerAuthenticate3 *r,
>+	const char **trust_account_for_search,
>+	const char **trust_account_in_db,
>+	struct dom_sid **sid)
>+{
>+	dcesrv_netr_ServerAuthenticateGenericCallback_fn auth_fn =
>+		dcesrv_netr_ServerAuthenticateNTHash_cb;
> 
>-	return NT_STATUS_OK;
>+	return dcesrv_netr_ServerAuthenticateGeneric(dce_call,
>+						     mem_ctx,
>+						     r,
>+						     auth_fn,
>+						     trust_account_for_search,
>+						     trust_account_in_db,
>+						     sid);
> }
> 
> /*
>-- 
>2.34.1
>
>
>From a59d767716732114e703af7487425bcd7f9b21e0 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Tue, 10 Sep 2024 13:56:38 +0200
>Subject: [PATCH 38/69] dcesrv_core: add DCESRV_NOT_USED_ON_WIRE() helper macro
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 01577b93cbb0a26aba3209cde69475be2e1c5fb8)
>---
> librpc/rpc/dcesrv_core.h | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
>diff --git a/librpc/rpc/dcesrv_core.h b/librpc/rpc/dcesrv_core.h
>index 2bc194008990..24750872b3f5 100644
>--- a/librpc/rpc/dcesrv_core.h
>+++ b/librpc/rpc/dcesrv_core.h
>@@ -578,6 +578,14 @@ NTSTATUS dcesrv_transport_session_key(struct dcesrv_call_state *call,
> 	return; \
> } while(0)
> 
>+#define DCESRV_NOT_USED_ON_WIRE(__opname) \
>+static void dcesrv_## __opname(struct dcesrv_call_state *dce_call,\
>+			       TALLOC_CTX *mem_ctx, \
>+			       struct __opname *r) \
>+{ \
>+        DCESRV_FAULT_VOID(DCERPC_FAULT_OP_RNG_ERROR); \
>+}
>+
> /* a useful macro for checking the validity of a dcerpc policy handle
>    and giving the right fault code if invalid */
> #define DCESRV_CHECK_HANDLE(h) do {if (!(h)) DCESRV_FAULT(DCERPC_FAULT_CONTEXT_MISMATCH); } while (0)
>-- 
>2.34.1
>
>
>From 5c976e010798c5996c331fb987bd01da76a2f14b Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Tue, 10 Sep 2024 13:56:38 +0200
>Subject: [PATCH 39/69] s3:rpc_server: add DCESRV_COMPAT_NOT_USED_ON_WIRE()
> helper macro
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 62afadb3ebac49a684fb0e5a1beb6d7db6f5e515)
>---
> source3/rpc_server/rpc_pipes.h | 6 ++++++
> 1 file changed, 6 insertions(+)
>
>diff --git a/source3/rpc_server/rpc_pipes.h b/source3/rpc_server/rpc_pipes.h
>index 17922b07bbe3..09ad8d7a523b 100644
>--- a/source3/rpc_server/rpc_pipes.h
>+++ b/source3/rpc_server/rpc_pipes.h
>@@ -70,4 +70,10 @@ void *_find_policy_by_hnd(struct pipes_struct *p,
> bool close_policy_hnd(struct pipes_struct *p, struct policy_handle *hnd);
> bool pipe_access_check(struct pipes_struct *p);
> 
>+#define DCESRV_COMPAT_NOT_USED_ON_WIRE(__opname) \
>+void _## __opname(struct pipes_struct *p, struct __opname *r) \
>+{ \
>+	p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; \
>+}
>+
> #endif /* _RPC_PIPES_H_ */
>-- 
>2.34.1
>
>
>From aba85ae0ef58b0947f766a6d3dfa98951ded6dd0 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Tue, 30 Apr 2024 15:14:47 +0200
>Subject: [PATCH 40/69] netlogon.idl: add netr_ServerAuthenticateKerberos() and
> related stuff
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit de8de55a5fee573d0718fa8dd13168a4f0a14614)
>---
> librpc/idl/netlogon.idl                       | 31 ++++++++++++++++++-
> source3/rpc_server/netlogon/srv_netlog_nt.c   | 25 +++++++++++++++
> source4/rpc_server/netlogon/dcerpc_netlogon.c | 30 ++++++++++++++++++
> 3 files changed, 85 insertions(+), 1 deletion(-)
>
>diff --git a/librpc/idl/netlogon.idl b/librpc/idl/netlogon.idl
>index ed75fe3797af..f9672b1bf547 100644
>--- a/librpc/idl/netlogon.idl
>+++ b/librpc/idl/netlogon.idl
>@@ -1036,7 +1036,8 @@ interface netlogon
> 		NETLOGON_NEG_SUPPORTS_AES_SHA2		= 0x00400000,
> 		NETLOGON_NEG_SUPPORTS_AES		= 0x01000000,
> 		NETLOGON_NEG_AUTHENTICATED_RPC_LSASS	= 0x20000000,
>-		NETLOGON_NEG_AUTHENTICATED_RPC		= 0x40000000
>+		NETLOGON_NEG_AUTHENTICATED_RPC		= 0x40000000,
>+		NETLOGON_NEG_SUPPORTS_KERBEROS_AUTH	= 0x80000000
> 	} netr_NegotiateFlags;
> 
> 	const uint32 NETLOGON_NEG_128BIT = NETLOGON_NEG_STRONG_KEYS;
>@@ -1885,4 +1886,32 @@ interface netlogon
> 		[in] uint32 dns_ttl,
> 		[in,out,ref] NL_DNS_NAME_INFO_ARRAY *dns_names
> 		);
>+
>+	[todo] void netr_Opnum49NotUsedOnWire(void);
>+	[todo] void netr_Opnum50NotUsedOnWire(void);
>+	[todo] void netr_Opnum51NotUsedOnWire(void);
>+	[todo] void netr_Opnum52NotUsedOnWire(void);
>+	[todo] void netr_Opnum53NotUsedOnWire(void);
>+
>+	/**********************/
>+	/* Function 0x36 (54) */
>+	/* from wireshark:    */
>+	/* This is documented as 49 (0x31) but it's 54) */
>+	[todo] NTSTATUS netr_ChainSetClientAttributes();
>+
>+	[todo] void netr_Opnum55NotUsedOnWire(void);
>+	[todo] void netr_Opnum56NotUsedOnWire(void);
>+	[todo] void netr_Opnum57NotUsedOnWire(void);
>+	[todo] void netr_Opnum58NotUsedOnWire(void);
>+
>+	/*****************/
>+	/* Function 0x3b (59) */
>+	[public] NTSTATUS netr_ServerAuthenticateKerberos(
>+		[in,unique]  [string,charset(UTF16)] uint16 *server_name,
>+		[in]         [string,charset(UTF16)] uint16 *account_name,
>+		[in]         netr_SchannelType account_type,
>+		[in]         [string,charset(UTF16)] uint16 *computer_name,
>+		[in,out,ref] netr_NegotiateFlags *negotiate_flags,
>+		[out,ref]    uint32 *rid
>+		);
> }
>diff --git a/source3/rpc_server/netlogon/srv_netlog_nt.c b/source3/rpc_server/netlogon/srv_netlog_nt.c
>index fb5894ffefb2..4900742c6bf7 100644
>--- a/source3/rpc_server/netlogon/srv_netlog_nt.c
>+++ b/source3/rpc_server/netlogon/srv_netlog_nt.c
>@@ -2906,6 +2906,31 @@ NTSTATUS _netr_DsrUpdateReadOnlyServerDnsRecords(struct pipes_struct *p,
> 	return NT_STATUS_NOT_IMPLEMENTED;
> }
> 
>+DCESRV_COMPAT_NOT_USED_ON_WIRE(netr_Opnum49NotUsedOnWire)
>+DCESRV_COMPAT_NOT_USED_ON_WIRE(netr_Opnum50NotUsedOnWire)
>+DCESRV_COMPAT_NOT_USED_ON_WIRE(netr_Opnum51NotUsedOnWire)
>+DCESRV_COMPAT_NOT_USED_ON_WIRE(netr_Opnum52NotUsedOnWire)
>+DCESRV_COMPAT_NOT_USED_ON_WIRE(netr_Opnum53NotUsedOnWire)
>+
>+NTSTATUS _netr_ChainSetClientAttributes(struct pipes_struct *p,
>+					struct netr_ChainSetClientAttributes *r)
>+{
>+	p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
>+	return NT_STATUS_NOT_IMPLEMENTED;
>+}
>+
>+DCESRV_COMPAT_NOT_USED_ON_WIRE(netr_Opnum55NotUsedOnWire)
>+DCESRV_COMPAT_NOT_USED_ON_WIRE(netr_Opnum56NotUsedOnWire)
>+DCESRV_COMPAT_NOT_USED_ON_WIRE(netr_Opnum57NotUsedOnWire)
>+DCESRV_COMPAT_NOT_USED_ON_WIRE(netr_Opnum58NotUsedOnWire)
>+
>+NTSTATUS _netr_ServerAuthenticateKerberos(struct pipes_struct *p,
>+					  struct netr_ServerAuthenticateKerberos *r)
>+{
>+	p->fault_state = DCERPC_FAULT_OP_RNG_ERROR;
>+	return NT_STATUS_NOT_IMPLEMENTED;
>+}
>+
> /*
>  * Define the bind function that will be used by ndr_netlogon_scompat.c,
>  * included at the bottom of this file.
>diff --git a/source4/rpc_server/netlogon/dcerpc_netlogon.c b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>index a2c4dbd5292a..be7c56656557 100644
>--- a/source4/rpc_server/netlogon/dcerpc_netlogon.c
>+++ b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>@@ -4776,6 +4776,36 @@ static NTSTATUS dcesrv_netr_DsrUpdateReadOnlyServerDnsRecords(struct dcesrv_call
> 	return NT_STATUS_OK;
> }
> 
>+DCESRV_NOT_USED_ON_WIRE(netr_Opnum49NotUsedOnWire)
>+DCESRV_NOT_USED_ON_WIRE(netr_Opnum50NotUsedOnWire)
>+DCESRV_NOT_USED_ON_WIRE(netr_Opnum51NotUsedOnWire)
>+DCESRV_NOT_USED_ON_WIRE(netr_Opnum52NotUsedOnWire)
>+DCESRV_NOT_USED_ON_WIRE(netr_Opnum53NotUsedOnWire)
>+
>+/*
>+  netr_ChainSetClientAttributes
>+ */
>+static NTSTATUS dcesrv_netr_ChainSetClientAttributes(struct dcesrv_call_state *dce_call,
>+						     TALLOC_CTX *mem_ctx,
>+						     struct netr_ChainSetClientAttributes *r)
>+{
>+	DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
>+}
>+
>+DCESRV_NOT_USED_ON_WIRE(netr_Opnum55NotUsedOnWire)
>+DCESRV_NOT_USED_ON_WIRE(netr_Opnum56NotUsedOnWire)
>+DCESRV_NOT_USED_ON_WIRE(netr_Opnum57NotUsedOnWire)
>+DCESRV_NOT_USED_ON_WIRE(netr_Opnum58NotUsedOnWire)
>+
>+/*
>+  netr_ServerAuthenticateKerberos
>+ */
>+static NTSTATUS dcesrv_netr_ServerAuthenticateKerberos(struct dcesrv_call_state *dce_call,
>+						       TALLOC_CTX *mem_ctx,
>+						       struct netr_ServerAuthenticateKerberos *r)
>+{
>+	DCESRV_FAULT(DCERPC_FAULT_OP_RNG_ERROR);
>+}
> 
> /* include the generated boilerplate */
> #include "librpc/gen_ndr/ndr_netlogon_s.c"
>-- 
>2.34.1
>
>
>From 7e861b645d19b037dde2d27d1ba79ae038d89e24 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 12:43:44 +0100
>Subject: [PATCH 41/69] libcli/auth: pass auth_{type,level} to
> netlogon_creds_{de,en}crypt_samlogon_validation()
>
>This will be needed when we implement netr_ServerAuthenticateKerberos...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit a56356e399339d5bce2e699431cd3e6186229170)
>---
> libcli/auth/credentials.c                     | 14 ++++++++++++--
> libcli/auth/libcli_auth.h                     |  1 +
> libcli/auth/netlogon_creds_cli.c              | 14 ++++++++++++--
> libcli/auth/proto.h                           |  8 ++++++--
> source3/rpc_server/netlogon/srv_netlog_nt.c   |  4 +++-
> source4/rpc_server/netlogon/dcerpc_netlogon.c |  9 ++++++++-
> source4/torture/rpc/samlogon.c                | 18 +++++++++++++++---
> 7 files changed, 57 insertions(+), 11 deletions(-)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index c9c8ddb5394d..0f5dd1a676ac 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -830,6 +830,8 @@ NTSTATUS netlogon_creds_server_step_check(struct netlogon_creds_CredentialState
> static NTSTATUS netlogon_creds_crypt_samlogon_validation(struct netlogon_creds_CredentialState *creds,
> 							 uint16_t validation_level,
> 							 union netr_Validation *validation,
>+							 enum dcerpc_AuthType auth_type,
>+							 enum dcerpc_AuthLevel auth_level,
> 							 bool do_encrypt)
> {
> 	struct netr_SamBaseInfo *base = NULL;
>@@ -945,21 +947,29 @@ static NTSTATUS netlogon_creds_crypt_samlogon_validation(struct netlogon_creds_C
> 
> NTSTATUS netlogon_creds_decrypt_samlogon_validation(struct netlogon_creds_CredentialState *creds,
> 						    uint16_t validation_level,
>-						    union netr_Validation *validation)
>+						    union netr_Validation *validation,
>+						    enum dcerpc_AuthType auth_type,
>+						    enum dcerpc_AuthLevel auth_level)
> {
> 	return netlogon_creds_crypt_samlogon_validation(creds,
> 							validation_level,
> 							validation,
>+							auth_type,
>+							auth_level,
> 							false);
> }
> 
> NTSTATUS netlogon_creds_encrypt_samlogon_validation(struct netlogon_creds_CredentialState *creds,
> 						    uint16_t validation_level,
>-						    union netr_Validation *validation)
>+						    union netr_Validation *validation,
>+						    enum dcerpc_AuthType auth_type,
>+						    enum dcerpc_AuthLevel auth_level)
> {
> 	return netlogon_creds_crypt_samlogon_validation(creds,
> 							validation_level,
> 							validation,
>+							auth_type,
>+							auth_level,
> 							true);
> }
> 
>diff --git a/libcli/auth/libcli_auth.h b/libcli/auth/libcli_auth.h
>index c5c7a7b0fa89..518dc3c2ca51 100644
>--- a/libcli/auth/libcli_auth.h
>+++ b/libcli/auth/libcli_auth.h
>@@ -17,6 +17,7 @@
> #ifndef __LIBCLI_AUTH_H__
> #define __LIBCLI_AUTH_H__
> 
>+#include "librpc/gen_ndr/dcerpc.h"
> #include "librpc/gen_ndr/netlogon.h"
> #include "librpc/gen_ndr/wkssvc.h"
> #include "librpc/gen_ndr/schannel.h"
>diff --git a/libcli/auth/netlogon_creds_cli.c b/libcli/auth/netlogon_creds_cli.c
>index 07547a9178ce..4f5a5f5d2ca9 100644
>--- a/libcli/auth/netlogon_creds_cli.c
>+++ b/libcli/auth/netlogon_creds_cli.c
>@@ -2862,10 +2862,16 @@ static void netlogon_creds_cli_LogonSamLogon_done(struct tevent_req *subreq)
> 	struct netlogon_creds_cli_LogonSamLogon_state *state =
> 		tevent_req_data(req,
> 		struct netlogon_creds_cli_LogonSamLogon_state);
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
> 	NTSTATUS status;
> 	NTSTATUS result;
> 	bool ok;
> 
>+	dcerpc_binding_handle_auth_info(state->binding_handle,
>+					&auth_type,
>+					&auth_level);
>+
> 	if (state->try_logon_ex) {
> 		status = dcerpc_netr_LogonSamLogonEx_recv(subreq,
> 							  state->validation,
>@@ -2918,7 +2924,9 @@ static void netlogon_creds_cli_LogonSamLogon_done(struct tevent_req *subreq)
> 
> 		status = netlogon_creds_decrypt_samlogon_validation(state->ro_creds,
> 								    state->validation_level,
>-								    state->validation);
>+								    state->validation,
>+								    auth_type,
>+								    auth_level);
> 		if (tevent_req_nterror(req, status)) {
> 			netlogon_creds_cli_LogonSamLogon_cleanup(req, status);
> 			return;
>@@ -2992,7 +3000,9 @@ static void netlogon_creds_cli_LogonSamLogon_done(struct tevent_req *subreq)
> 
> 	status = netlogon_creds_decrypt_samlogon_validation(&state->tmp_creds,
> 							    state->validation_level,
>-							    state->validation);
>+							    state->validation,
>+							    auth_type,
>+							    auth_level);
> 	if (tevent_req_nterror(req, status)) {
> 		netlogon_creds_cli_LogonSamLogon_cleanup(req, result);
> 		return;
>diff --git a/libcli/auth/proto.h b/libcli/auth/proto.h
>index ae68aab192a9..1eec792d8041 100644
>--- a/libcli/auth/proto.h
>+++ b/libcli/auth/proto.h
>@@ -78,10 +78,14 @@ NTSTATUS netlogon_creds_server_step_check(struct netlogon_creds_CredentialState
> 				 struct netr_Authenticator *return_authenticator) ;
> NTSTATUS netlogon_creds_decrypt_samlogon_validation(struct netlogon_creds_CredentialState *creds,
> 						    uint16_t validation_level,
>-						    union netr_Validation *validation);
>+						    union netr_Validation *validation,
>+						    enum dcerpc_AuthType auth_type,
>+						    enum dcerpc_AuthLevel auth_level);
> NTSTATUS netlogon_creds_encrypt_samlogon_validation(struct netlogon_creds_CredentialState *creds,
> 						    uint16_t validation_level,
>-						    union netr_Validation *validation);
>+						    union netr_Validation *validation,
>+						    enum dcerpc_AuthType auth_type,
>+						    enum dcerpc_AuthLevel auth_level);
> NTSTATUS netlogon_creds_decrypt_samlogon_logon(struct netlogon_creds_CredentialState *creds,
> 					       enum netr_LogonInfoClass level,
> 					       union netr_LogonLevel *logon);
>diff --git a/source3/rpc_server/netlogon/srv_netlog_nt.c b/source3/rpc_server/netlogon/srv_netlog_nt.c
>index 4900742c6bf7..843b2c4dfbe4 100644
>--- a/source3/rpc_server/netlogon/srv_netlog_nt.c
>+++ b/source3/rpc_server/netlogon/srv_netlog_nt.c
>@@ -1938,7 +1938,9 @@ static NTSTATUS _netr_LogonSamLogon_base(struct pipes_struct *p,
> 
> 	status = netlogon_creds_encrypt_samlogon_validation(creds,
> 							    r->in.validation_level,
>-							    r->out.validation);
>+							    r->out.validation,
>+							    auth_type,
>+							    auth_level);
> 
> 	return status;
> }
>diff --git a/source4/rpc_server/netlogon/dcerpc_netlogon.c b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>index be7c56656557..70e41699b9b7 100644
>--- a/source4/rpc_server/netlogon/dcerpc_netlogon.c
>+++ b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>@@ -1673,9 +1673,16 @@ static void dcesrv_netr_LogonSamLogon_base_reply(
> 	NTSTATUS status;
> 
> 	if (NT_STATUS_IS_OK(r->out.result)) {
>+		enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
>+		enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
>+
>+		dcesrv_call_auth_info(state->dce_call, &auth_type, &auth_level);
>+
> 		status = netlogon_creds_encrypt_samlogon_validation(state->creds,
> 								    r->in.validation_level,
>-								    r->out.validation);
>+								    r->out.validation,
>+								    auth_type,
>+								    auth_level);
> 		if (!NT_STATUS_IS_OK(status)) {
> 			DBG_ERR("netlogon_creds_encrypt_samlogon_validation() "
> 				"failed - %s\n",
>diff --git a/source4/torture/rpc/samlogon.c b/source4/torture/rpc/samlogon.c
>index f16db6442411..a9f8ff5b5b6a 100644
>--- a/source4/torture/rpc/samlogon.c
>+++ b/source4/torture/rpc/samlogon.c
>@@ -91,6 +91,12 @@ static NTSTATUS check_samlogon(struct samlogon_state *samlogon_state,
> 	struct netr_NetworkInfo ninfo;
> 	struct netr_SamBaseInfo *base = NULL;
> 	uint16_t validation_level = 0;
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
>+
>+	dcerpc_binding_handle_auth_info(samlogon_state->p->binding_handle,
>+					&auth_type,
>+					&auth_level);
> 
> 	samlogon_state->r.in.logon->network = &ninfo;
> 	samlogon_state->r_ex.in.logon->network = &ninfo;
>@@ -178,7 +184,9 @@ static NTSTATUS check_samlogon(struct samlogon_state *samlogon_state,
> 
> 		status = netlogon_creds_decrypt_samlogon_validation(samlogon_state->creds,
> 								    validation_level,
>-								    r->out.validation);
>+								    r->out.validation,
>+								    auth_type,
>+								    auth_level);
> 		if (!NT_STATUS_IS_OK(status)) {
> 			if (error_string) {
> 				*error_string = strdup(nt_errstr(status));
>@@ -218,7 +226,9 @@ static NTSTATUS check_samlogon(struct samlogon_state *samlogon_state,
> 
> 		status = netlogon_creds_decrypt_samlogon_validation(samlogon_state->creds,
> 								    validation_level,
>-								    r_ex->out.validation);
>+								    r_ex->out.validation,
>+								    auth_type,
>+								    auth_level);
> 		if (!NT_STATUS_IS_OK(status)) {
> 			if (error_string) {
> 				*error_string = strdup(nt_errstr(status));
>@@ -266,7 +276,9 @@ static NTSTATUS check_samlogon(struct samlogon_state *samlogon_state,
> 
> 		status = netlogon_creds_decrypt_samlogon_validation(samlogon_state->creds,
> 								    validation_level,
>-								    r_flags->out.validation);
>+								    r_flags->out.validation,
>+								    auth_type,
>+								    auth_level);
> 		if (!NT_STATUS_IS_OK(status)) {
> 			if (error_string) {
> 				*error_string = strdup(nt_errstr(status));
>-- 
>2.34.1
>
>
>From e142c9be53e5ced05e4e155871ef8c868ad3040b Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 12:55:12 +0100
>Subject: [PATCH 42/69] libcli/auth: pass auth_{type,level} to
> netlogon_creds_{de,en}crypt_samlogon_logon()
>
>This will be needed when we implement netr_ServerAuthenticateKerberos...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 3d4ea276bdf44202250246cd6edae2bc17e92c74)
>---
> libcli/auth/credentials.c                     | 24 +++++++++++++++----
> libcli/auth/netlogon_creds_cli.c              |  8 +++++--
> libcli/auth/proto.h                           |  8 +++++--
> source3/rpc_server/netlogon/srv_netlog_nt.c   |  4 +++-
> source4/rpc_server/netlogon/dcerpc_netlogon.c |  4 +++-
> 5 files changed, 38 insertions(+), 10 deletions(-)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index 0f5dd1a676ac..dd43036c9bc4 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -976,6 +976,8 @@ NTSTATUS netlogon_creds_encrypt_samlogon_validation(struct netlogon_creds_Creden
> static NTSTATUS netlogon_creds_crypt_samlogon_logon(struct netlogon_creds_CredentialState *creds,
> 						    enum netr_LogonInfoClass level,
> 						    union netr_LogonLevel *logon,
>+						    enum dcerpc_AuthType auth_type,
>+						    enum dcerpc_AuthLevel auth_level,
> 						    bool do_encrypt)
> {
> 	NTSTATUS status;
>@@ -1121,16 +1123,30 @@ static NTSTATUS netlogon_creds_crypt_samlogon_logon(struct netlogon_creds_Creden
> 
> NTSTATUS netlogon_creds_decrypt_samlogon_logon(struct netlogon_creds_CredentialState *creds,
> 					       enum netr_LogonInfoClass level,
>-					       union netr_LogonLevel *logon)
>+					       union netr_LogonLevel *logon,
>+					       enum dcerpc_AuthType auth_type,
>+					       enum dcerpc_AuthLevel auth_level)
> {
>-	return netlogon_creds_crypt_samlogon_logon(creds, level, logon, false);
>+	return netlogon_creds_crypt_samlogon_logon(creds,
>+						   level,
>+						   logon,
>+						   auth_type,
>+						   auth_level,
>+						   false);
> }
> 
> NTSTATUS netlogon_creds_encrypt_samlogon_logon(struct netlogon_creds_CredentialState *creds,
> 					       enum netr_LogonInfoClass level,
>-					       union netr_LogonLevel *logon)
>+					       union netr_LogonLevel *logon,
>+					       enum dcerpc_AuthType auth_type,
>+					       enum dcerpc_AuthLevel auth_level)
> {
>-	return netlogon_creds_crypt_samlogon_logon(creds, level, logon, true);
>+	return netlogon_creds_crypt_samlogon_logon(creds,
>+						   level,
>+						   logon,
>+						   auth_type,
>+						   auth_level,
>+						   true);
> }
> 
> union netr_LogonLevel *netlogon_creds_shallow_copy_logon(TALLOC_CTX *mem_ctx,
>diff --git a/libcli/auth/netlogon_creds_cli.c b/libcli/auth/netlogon_creds_cli.c
>index 4f5a5f5d2ca9..78aa9bf8b759 100644
>--- a/libcli/auth/netlogon_creds_cli.c
>+++ b/libcli/auth/netlogon_creds_cli.c
>@@ -2738,7 +2738,9 @@ static void netlogon_creds_cli_LogonSamLogon_start(struct tevent_req *req)
> 
> 			status = netlogon_creds_encrypt_samlogon_logon(state->ro_creds,
> 								       state->logon_level,
>-								       state->logon);
>+								       state->logon,
>+								       auth_type,
>+								       auth_level);
> 			if (!NT_STATUS_IS_OK(status)) {
> 				status = NT_STATUS_ACCESS_DENIED;
> 				tevent_req_nterror(req, status);
>@@ -2802,7 +2804,9 @@ static void netlogon_creds_cli_LogonSamLogon_start(struct tevent_req *req)
> 
> 	status = netlogon_creds_encrypt_samlogon_logon(&state->tmp_creds,
> 						       state->logon_level,
>-						       state->logon);
>+						       state->logon,
>+						       auth_type,
>+						       auth_level);
> 	if (tevent_req_nterror(req, status)) {
> 		netlogon_creds_cli_LogonSamLogon_cleanup(req, status);
> 		return;
>diff --git a/libcli/auth/proto.h b/libcli/auth/proto.h
>index 1eec792d8041..c5e26d183ab4 100644
>--- a/libcli/auth/proto.h
>+++ b/libcli/auth/proto.h
>@@ -88,10 +88,14 @@ NTSTATUS netlogon_creds_encrypt_samlogon_validation(struct netlogon_creds_Creden
> 						    enum dcerpc_AuthLevel auth_level);
> NTSTATUS netlogon_creds_decrypt_samlogon_logon(struct netlogon_creds_CredentialState *creds,
> 					       enum netr_LogonInfoClass level,
>-					       union netr_LogonLevel *logon);
>+					       union netr_LogonLevel *logon,
>+					       enum dcerpc_AuthType auth_type,
>+					       enum dcerpc_AuthLevel auth_level);
> NTSTATUS netlogon_creds_encrypt_samlogon_logon(struct netlogon_creds_CredentialState *creds,
> 					       enum netr_LogonInfoClass level,
>-					       union netr_LogonLevel *logon);
>+					       union netr_LogonLevel *logon,
>+					       enum dcerpc_AuthType auth_type,
>+					       enum dcerpc_AuthLevel auth_level);
> union netr_LogonLevel *netlogon_creds_shallow_copy_logon(TALLOC_CTX *mem_ctx,
> 					enum netr_LogonInfoClass level,
> 					const union netr_LogonLevel *in);
>diff --git a/source3/rpc_server/netlogon/srv_netlog_nt.c b/source3/rpc_server/netlogon/srv_netlog_nt.c
>index 843b2c4dfbe4..8dce49946171 100644
>--- a/source3/rpc_server/netlogon/srv_netlog_nt.c
>+++ b/source3/rpc_server/netlogon/srv_netlog_nt.c
>@@ -1755,7 +1755,9 @@ static NTSTATUS _netr_LogonSamLogon_base(struct pipes_struct *p,
> 
> 	status = netlogon_creds_decrypt_samlogon_logon(creds,
> 						       r->in.logon_level,
>-						       logon);
>+						       logon,
>+						       auth_type,
>+						       auth_level);
> 	if (!NT_STATUS_IS_OK(status)) {
> 		return status;
> 	}
>diff --git a/source4/rpc_server/netlogon/dcerpc_netlogon.c b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>index 70e41699b9b7..050e6e4bcdde 100644
>--- a/source4/rpc_server/netlogon/dcerpc_netlogon.c
>+++ b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>@@ -1377,7 +1377,9 @@ static NTSTATUS dcesrv_netr_LogonSamLogon_base_call(struct dcesrv_netr_LogonSamL
> 
> 	nt_status = netlogon_creds_decrypt_samlogon_logon(creds,
> 							  r->in.logon_level,
>-							  r->in.logon);
>+							  r->in.logon,
>+							  auth_type,
>+							  auth_level);
> 	NT_STATUS_NOT_OK_RETURN(nt_status);
> 
> 	switch (r->in.logon_level) {
>-- 
>2.34.1
>
>
>From 54406843b3db3d65f516ebef7211887e79688191 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 13:03:37 +0100
>Subject: [PATCH 43/69] libcli/auth: add
> netlogon_creds_{de,en}crypt_samr_Password()
>
>These will simplify adding the logic for netr_ServerAuthenticateKerberos...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 851a9b18eccece64c3ae0cedd7c7b26a44f0eec6)
>---
> libcli/auth/credentials.c | 47 +++++++++++++++++++++++++++++++++++++++
> libcli/auth/proto.h       |  8 +++++++
> 2 files changed, 55 insertions(+)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index dd43036c9bc4..fcc06a948369 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -1149,6 +1149,53 @@ NTSTATUS netlogon_creds_encrypt_samlogon_logon(struct netlogon_creds_CredentialS
> 						   true);
> }
> 
>+static NTSTATUS netlogon_creds_crypt_samr_Password(
>+		struct netlogon_creds_CredentialState *creds,
>+		struct samr_Password *pass,
>+		enum dcerpc_AuthType auth_type,
>+		enum dcerpc_AuthLevel auth_level,
>+		bool do_encrypt)
>+{
>+	if (all_zero(pass->hash, ARRAY_SIZE(pass->hash))) {
>+		return NT_STATUS_OK;
>+	}
>+
>+	/*
>+	 * Even with NETLOGON_NEG_SUPPORTS_AES or
>+	 * NETLOGON_NEG_ARCFOUR this uses DES
>+	 */
>+
>+	if (do_encrypt) {
>+		return netlogon_creds_des_encrypt(creds, pass);
>+	}
>+
>+	return netlogon_creds_des_decrypt(creds, pass);
>+}
>+
>+NTSTATUS netlogon_creds_decrypt_samr_Password(struct netlogon_creds_CredentialState *creds,
>+					      struct samr_Password *pass,
>+					      enum dcerpc_AuthType auth_type,
>+					      enum dcerpc_AuthLevel auth_level)
>+{
>+	return netlogon_creds_crypt_samr_Password(creds,
>+						  pass,
>+						  auth_type,
>+						  auth_level,
>+						  false);
>+}
>+
>+NTSTATUS netlogon_creds_encrypt_samr_Password(struct netlogon_creds_CredentialState *creds,
>+					      struct samr_Password *pass,
>+					      enum dcerpc_AuthType auth_type,
>+					      enum dcerpc_AuthLevel auth_level)
>+{
>+	return netlogon_creds_crypt_samr_Password(creds,
>+						  pass,
>+						  auth_type,
>+						  auth_level,
>+						  true);
>+}
>+
> union netr_LogonLevel *netlogon_creds_shallow_copy_logon(TALLOC_CTX *mem_ctx,
> 					enum netr_LogonInfoClass level,
> 					const union netr_LogonLevel *in)
>diff --git a/libcli/auth/proto.h b/libcli/auth/proto.h
>index c5e26d183ab4..b43781191bce 100644
>--- a/libcli/auth/proto.h
>+++ b/libcli/auth/proto.h
>@@ -96,6 +96,14 @@ NTSTATUS netlogon_creds_encrypt_samlogon_logon(struct netlogon_creds_CredentialS
> 					       union netr_LogonLevel *logon,
> 					       enum dcerpc_AuthType auth_type,
> 					       enum dcerpc_AuthLevel auth_level);
>+NTSTATUS netlogon_creds_decrypt_samr_Password(struct netlogon_creds_CredentialState *creds,
>+					      struct samr_Password *pass,
>+					      enum dcerpc_AuthType auth_type,
>+					      enum dcerpc_AuthLevel auth_level);
>+NTSTATUS netlogon_creds_encrypt_samr_Password(struct netlogon_creds_CredentialState *creds,
>+					      struct samr_Password *pass,
>+					      enum dcerpc_AuthType auth_type,
>+					      enum dcerpc_AuthLevel auth_level);
> union netr_LogonLevel *netlogon_creds_shallow_copy_logon(TALLOC_CTX *mem_ctx,
> 					enum netr_LogonInfoClass level,
> 					const union netr_LogonLevel *in);
>-- 
>2.34.1
>
>
>From 25cd6b768a05301045968e0f3a2b3e387566e2cf Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 13:12:24 +0100
>Subject: [PATCH 44/69] libcli/auth: add
> netlogon_creds_{de,en}crypt_samr_CryptPassword()
>
>These will simplify adding the logic for netr_ServerAuthenticateKerberos...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 8eb95a155de396981375c7f11221695fd3c7f9d5)
>---
> libcli/auth/credentials.c | 48 +++++++++++++++++++++++++++++++++++++++
> libcli/auth/proto.h       |  8 +++++++
> 2 files changed, 56 insertions(+)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index fcc06a948369..6fdd4213b543 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -1196,6 +1196,54 @@ NTSTATUS netlogon_creds_encrypt_samr_Password(struct netlogon_creds_CredentialSt
> 						  true);
> }
> 
>+static NTSTATUS netlogon_creds_crypt_samr_CryptPassword(
>+		struct netlogon_creds_CredentialState *creds,
>+		struct samr_CryptPassword *pass,
>+		enum dcerpc_AuthType auth_type,
>+		enum dcerpc_AuthLevel auth_level,
>+		bool do_encrypt)
>+{
>+	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>+		if (do_encrypt) {
>+			return netlogon_creds_aes_encrypt(creds,
>+							  pass->data,
>+							  ARRAY_SIZE(pass->data));
>+		}
>+
>+		return netlogon_creds_aes_decrypt(creds,
>+						  pass->data,
>+						  ARRAY_SIZE(pass->data));
>+	}
>+
>+	return netlogon_creds_arcfour_crypt(creds,
>+					    pass->data,
>+					    ARRAY_SIZE(pass->data));
>+}
>+
>+NTSTATUS netlogon_creds_decrypt_samr_CryptPassword(struct netlogon_creds_CredentialState *creds,
>+						   struct samr_CryptPassword *pass,
>+						   enum dcerpc_AuthType auth_type,
>+						   enum dcerpc_AuthLevel auth_level)
>+{
>+	return netlogon_creds_crypt_samr_CryptPassword(creds,
>+						       pass,
>+						       auth_type,
>+						       auth_level,
>+						       false);
>+}
>+
>+NTSTATUS netlogon_creds_encrypt_samr_CryptPassword(struct netlogon_creds_CredentialState *creds,
>+						   struct samr_CryptPassword *pass,
>+						   enum dcerpc_AuthType auth_type,
>+						   enum dcerpc_AuthLevel auth_level)
>+{
>+	return netlogon_creds_crypt_samr_CryptPassword(creds,
>+						       pass,
>+						       auth_type,
>+						       auth_level,
>+						       true);
>+}
>+
> union netr_LogonLevel *netlogon_creds_shallow_copy_logon(TALLOC_CTX *mem_ctx,
> 					enum netr_LogonInfoClass level,
> 					const union netr_LogonLevel *in)
>diff --git a/libcli/auth/proto.h b/libcli/auth/proto.h
>index b43781191bce..d02ffa64c10c 100644
>--- a/libcli/auth/proto.h
>+++ b/libcli/auth/proto.h
>@@ -104,6 +104,14 @@ NTSTATUS netlogon_creds_encrypt_samr_Password(struct netlogon_creds_CredentialSt
> 					      struct samr_Password *pass,
> 					      enum dcerpc_AuthType auth_type,
> 					      enum dcerpc_AuthLevel auth_level);
>+NTSTATUS netlogon_creds_decrypt_samr_CryptPassword(struct netlogon_creds_CredentialState *creds,
>+						   struct samr_CryptPassword *pass,
>+						   enum dcerpc_AuthType auth_type,
>+						   enum dcerpc_AuthLevel auth_level);
>+NTSTATUS netlogon_creds_encrypt_samr_CryptPassword(struct netlogon_creds_CredentialState *creds,
>+						   struct samr_CryptPassword *pass,
>+						   enum dcerpc_AuthType auth_type,
>+						   enum dcerpc_AuthLevel auth_level);
> union netr_LogonLevel *netlogon_creds_shallow_copy_logon(TALLOC_CTX *mem_ctx,
> 					enum netr_LogonInfoClass level,
> 					const union netr_LogonLevel *in);
>-- 
>2.34.1
>
>
>From da8f24354c76b4e96992ef09985c0270ea7b8e7a Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 13:13:50 +0100
>Subject: [PATCH 45/69] libcli/auth: add
> netlogon_creds_{de,en}crypt_SendToSam()
>
>These will simplify adding the logic for netr_ServerAuthenticateKerberos...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit b8681c165731666bb5eed073ab862490c33ea095)
>---
> libcli/auth/credentials.c | 53 +++++++++++++++++++++++++++++++++++++++
> libcli/auth/proto.h       | 10 ++++++++
> 2 files changed, 63 insertions(+)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index 6fdd4213b543..3bc6b741c069 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -1244,6 +1244,59 @@ NTSTATUS netlogon_creds_encrypt_samr_CryptPassword(struct netlogon_creds_Credent
> 						       true);
> }
> 
>+static NTSTATUS netlogon_creds_crypt_SendToSam(
>+		struct netlogon_creds_CredentialState *creds,
>+		uint8_t *opaque_data,
>+		size_t opaque_length,
>+		enum dcerpc_AuthType auth_type,
>+		enum dcerpc_AuthLevel auth_level,
>+		bool do_encrypt)
>+{
>+	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>+		if (do_encrypt) {
>+			return netlogon_creds_aes_encrypt(creds,
>+							  opaque_data,
>+							  opaque_length);
>+		}
>+
>+		return netlogon_creds_aes_decrypt(creds,
>+						  opaque_data,
>+						  opaque_length);
>+	}
>+
>+	return netlogon_creds_arcfour_crypt(creds,
>+					    opaque_data,
>+					    opaque_length);
>+}
>+
>+NTSTATUS netlogon_creds_decrypt_SendToSam(struct netlogon_creds_CredentialState *creds,
>+					  uint8_t *opaque_data,
>+					  size_t opaque_length,
>+					  enum dcerpc_AuthType auth_type,
>+					  enum dcerpc_AuthLevel auth_level)
>+{
>+	return netlogon_creds_crypt_SendToSam(creds,
>+					      opaque_data,
>+					      opaque_length,
>+					      auth_type,
>+					      auth_level,
>+					      false);
>+}
>+
>+NTSTATUS netlogon_creds_encrypt_SendToSam(struct netlogon_creds_CredentialState *creds,
>+					  uint8_t *opaque_data,
>+					  size_t opaque_length,
>+					  enum dcerpc_AuthType auth_type,
>+					  enum dcerpc_AuthLevel auth_level)
>+{
>+	return netlogon_creds_crypt_SendToSam(creds,
>+					      opaque_data,
>+					      opaque_length,
>+					      auth_type,
>+					      auth_level,
>+					      true);
>+}
>+
> union netr_LogonLevel *netlogon_creds_shallow_copy_logon(TALLOC_CTX *mem_ctx,
> 					enum netr_LogonInfoClass level,
> 					const union netr_LogonLevel *in)
>diff --git a/libcli/auth/proto.h b/libcli/auth/proto.h
>index d02ffa64c10c..f108c756a1f7 100644
>--- a/libcli/auth/proto.h
>+++ b/libcli/auth/proto.h
>@@ -112,6 +112,16 @@ NTSTATUS netlogon_creds_encrypt_samr_CryptPassword(struct netlogon_creds_Credent
> 						   struct samr_CryptPassword *pass,
> 						   enum dcerpc_AuthType auth_type,
> 						   enum dcerpc_AuthLevel auth_level);
>+NTSTATUS netlogon_creds_decrypt_SendToSam(struct netlogon_creds_CredentialState *creds,
>+					  uint8_t *opaque_data,
>+					  size_t opaque_length,
>+					  enum dcerpc_AuthType auth_type,
>+					  enum dcerpc_AuthLevel auth_level);
>+NTSTATUS netlogon_creds_encrypt_SendToSam(struct netlogon_creds_CredentialState *creds,
>+					  uint8_t *opaque_data,
>+					  size_t opaque_length,
>+					  enum dcerpc_AuthType auth_type,
>+					  enum dcerpc_AuthLevel auth_level);
> union netr_LogonLevel *netlogon_creds_shallow_copy_logon(TALLOC_CTX *mem_ctx,
> 					enum netr_LogonInfoClass level,
> 					const union netr_LogonLevel *in);
>-- 
>2.34.1
>
>
>From 54215c7cff1eef76cdaa3311092187d056f8c710 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 14:06:28 +0100
>Subject: [PATCH 46/69] pycredentials: make use of
> netlogon_creds_encrypt_samr_CryptPassword in
> py_creds_encrypt_netr_crypt_password
>
>These will simplify adding the logic for netr_ServerAuthenticateKerberos...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit ea792fa342deebefa75b77832c9057924cdcb6f6)
>---
> auth/credentials/pycredentials.c | 19 +++++++++++++++----
> 1 file changed, 15 insertions(+), 4 deletions(-)
>
>diff --git a/auth/credentials/pycredentials.c b/auth/credentials/pycredentials.c
>index a27e02d1aa53..cdba997b7d66 100644
>--- a/auth/credentials/pycredentials.c
>+++ b/auth/credentials/pycredentials.c
>@@ -1024,9 +1024,11 @@ static PyObject *py_creds_get_aes256_key(PyObject *self, PyObject *args)
> static PyObject *py_creds_encrypt_netr_crypt_password(PyObject *self,
> 						      PyObject *args)
> {
>-	DATA_BLOB data = data_blob_null;
> 	struct cli_credentials    *creds  = NULL;
> 	struct netr_CryptPassword *pwd    = NULL;
>+	struct samr_CryptPassword spwd;
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
>+	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
> 	NTSTATUS status;
> 	PyObject *py_cp = Py_None;
> 
>@@ -1045,9 +1047,18 @@ static PyObject *py_creds_encrypt_netr_crypt_password(PyObject *self,
> 		/* pytalloc_get_type sets TypeError */
> 		return NULL;
> 	}
>-	data.length = sizeof(struct netr_CryptPassword);
>-	data.data   = (uint8_t *)pwd;
>-	status = netlogon_creds_session_encrypt(creds->netlogon_creds, data);
>+
>+	memcpy(spwd.data, pwd->data, 512);
>+	PUSH_LE_U32(spwd.data, 512, pwd->length);
>+
>+	status = netlogon_creds_encrypt_samr_CryptPassword(creds->netlogon_creds,
>+							   &spwd,
>+							   auth_type,
>+							   auth_level);
>+
>+	memcpy(pwd->data, spwd.data, 512);
>+	pwd->length = PULL_LE_U32(spwd.data, 512);
>+	ZERO_STRUCT(spwd);
> 
> 	PyErr_NTSTATUS_IS_ERR_RAISE(status);
> 
>-- 
>2.34.1
>
>
>From d5cec415c71fdefc6266d2af88908177d6098556 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 15:22:47 +0100
>Subject: [PATCH 47/69] pycredentials: add py_creds_encrypt_netr_PasswordInfo
> helper
>
>This will replace py_creds_encrypt_samr_password in the next steps
>and prepares the introduction of netr_ServerAuthenticateKerberos().
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit fac378485f5f15ac0a11c3d82207c4bc780bfb80)
>---
> auth/credentials/pycredentials.c | 73 ++++++++++++++++++++++++++++++++
> 1 file changed, 73 insertions(+)
>
>diff --git a/auth/credentials/pycredentials.c b/auth/credentials/pycredentials.c
>index cdba997b7d66..35869b47478a 100644
>--- a/auth/credentials/pycredentials.c
>+++ b/auth/credentials/pycredentials.c
>@@ -1107,6 +1107,68 @@ static PyObject *py_creds_encrypt_samr_password(PyObject *self,
> 	Py_RETURN_NONE;
> }
> 
>+static PyObject *py_creds_encrypt_netr_PasswordInfo(PyObject *self,
>+						    PyObject *args,
>+						    PyObject *kwargs)
>+{
>+	const char * const kwnames[] = {
>+		"info",
>+		"auth_type",
>+		"auth_level",
>+		NULL
>+	};
>+	struct cli_credentials *creds = NULL;
>+	PyObject *py_info = Py_None;
>+	enum netr_LogonInfoClass level = NetlogonInteractiveInformation;
>+	union netr_LogonLevel logon = { .password = NULL, };
>+	uint8_t auth_type = DCERPC_AUTH_TYPE_NONE;
>+	uint8_t auth_level = DCERPC_AUTH_LEVEL_NONE;
>+	NTSTATUS status;
>+	bool ok;
>+
>+	creds = PyCredentials_AsCliCredentials(self);
>+	if (creds == NULL) {
>+		PyErr_Format(PyExc_TypeError, "Credentials expected");
>+		return NULL;
>+	}
>+
>+	if (creds->netlogon_creds == NULL) {
>+		PyErr_Format(PyExc_ValueError, "NetLogon credentials not set");
>+		return NULL;
>+	}
>+
>+	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "Obb",
>+					 discard_const_p(char *, kwnames),
>+					 &py_info, &auth_type, &auth_level))
>+	{
>+		return NULL;
>+	}
>+
>+	ok = py_check_dcerpc_type(py_info,
>+				  "samba.dcerpc.netlogon",
>+				  "netr_PasswordInfo");
>+	if (!ok) {
>+		/* py_check_dcerpc_type sets TypeError */
>+		return NULL;
>+	}
>+
>+	logon.password = pytalloc_get_type(py_info, struct netr_PasswordInfo);
>+	if (logon.password == NULL) {
>+		/* pytalloc_get_type sets TypeError */
>+		return NULL;
>+	}
>+
>+	status = netlogon_creds_encrypt_samlogon_logon(creds->netlogon_creds,
>+						       level,
>+						       &logon,
>+						       auth_type,
>+						       auth_level);
>+
>+	PyErr_NTSTATUS_IS_ERR_RAISE(status);
>+
>+	Py_RETURN_NONE;
>+}
>+
> static PyObject *py_creds_get_smb_signing(PyObject *self, PyObject *unused)
> {
> 	enum smb_signing_setting signing_state;
>@@ -1622,6 +1684,17 @@ static PyMethodDef py_creds_methods[] = {
> 			    "the negotiated encryption algorithm in place\n"
> 			    "i.e. it overwrites the original data"
> 	},
>+	{
>+		.ml_name  = "encrypt_netr_PasswordInfo",
>+		.ml_meth  = PY_DISCARD_FUNC_SIG(PyCFunction,
>+					py_creds_encrypt_netr_PasswordInfo),
>+		.ml_flags = METH_VARARGS | METH_KEYWORDS,
>+		.ml_doc   = "S.encrypt_netr_PasswordInfo(info, "
>+			    "auth_type, auth_level) -> None\n"
>+			    "Encrypt the supplied password info using the session key and\n"
>+			    "the negotiated encryption algorithm in place\n"
>+			    "i.e. it overwrites the original data"
>+	},
> 	{
> 		.ml_name  = "get_smb_signing",
> 		.ml_meth  = py_creds_get_smb_signing,
>-- 
>2.34.1
>
>
>From 963e335a8a4dfa514db5f11430977f76675cc82f Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 15:39:57 +0100
>Subject: [PATCH 48/69] python/tests: use encrypt_netr_PasswordInfo in
> KDCBaseTest._test_samlogon()
>
>This will make it easier to implement netr_ServerAuthenticateKerberos()
>later...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit e7d57fc6e992ca212b834d5dd4d381244bca55c6)
>---
> python/samba/tests/krb5/kdc_base_test.py | 10 ++++++++--
> 1 file changed, 8 insertions(+), 2 deletions(-)
>
>diff --git a/python/samba/tests/krb5/kdc_base_test.py b/python/samba/tests/krb5/kdc_base_test.py
>index d983c631a468..5efdb2e9eb60 100644
>--- a/python/samba/tests/krb5/kdc_base_test.py
>+++ b/python/samba/tests/krb5/kdc_base_test.py
>@@ -51,6 +51,7 @@ from samba.credentials import (
> from samba.crypto import des_crypt_blob_16, md4_hash_blob
> from samba.dcerpc import (
>     claims,
>+    dcerpc,
>     drsblobs,
>     drsuapi,
>     krb5ccache,
>@@ -3685,10 +3686,12 @@ class KDCBaseTest(TestCaseInTempDir, RawKerberosTest):
>         workstation = domain_joined_mach_creds.get_username()
> 
>         # Calling this initializes netlogon_creds on mach_creds, as is required
>-        # before calling mach_creds.encrypt_samr_password().
>+        # before calling mach_creds.encrypt_netr_PasswordInfo().
>         conn = netlogon.netlogon(f'ncacn_ip_tcp:{dc_server}[schannel,seal]',
>                                  self.get_lp(),
>                                  domain_joined_mach_creds)
>+        auth_type = dcerpc.DCERPC_AUTH_TYPE_SCHANNEL
>+        auth_level = dcerpc.DCERPC_AUTH_LEVEL_PRIVACY
> 
>         if logon_type == netlogon.NetlogonInteractiveInformation:
>             logon = netlogon.netr_PasswordInfo()
>@@ -3698,11 +3701,14 @@ class KDCBaseTest(TestCaseInTempDir, RawKerberosTest):
> 
>             nt_pass = samr.Password()
>             nt_pass.hash = list(creds.get_nt_hash())
>-            domain_joined_mach_creds.encrypt_samr_password(nt_pass)
> 
>             logon.lmpassword = lm_pass
>             logon.ntpassword = nt_pass
> 
>+            domain_joined_mach_creds.encrypt_netr_PasswordInfo(info=logon,
>+                                                               auth_type=auth_type,
>+                                                               auth_level=auth_level)
>+
>         elif logon_type == netlogon.NetlogonNetworkInformation:
>             computername = ntlmssp.AV_PAIR()
>             computername.AvId = ntlmssp.MsvAvNbComputerName
>-- 
>2.34.1
>
>
>From a49ce9075ba87a8a1a8397334c795afbedbd2873 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 15:52:13 +0100
>Subject: [PATCH 49/69] libcli/auth: make
> netlogon_creds_des_{de,en}crypt_LMKey() static
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 1edcd5df80bdbc4d4da5bdd5e534d7a17ec61f77)
>---
> libcli/auth/credentials.c | 4 ++--
> libcli/auth/proto.h       | 4 ----
> 2 files changed, 2 insertions(+), 6 deletions(-)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index 3bc6b741c069..ec5552e60c07 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -290,7 +290,7 @@ static NTSTATUS netlogon_creds_step(struct netlogon_creds_CredentialState *creds
> /*
>   DES encrypt a 8 byte LMSessionKey buffer using the Netlogon session key
> */
>-NTSTATUS netlogon_creds_des_encrypt_LMKey(struct netlogon_creds_CredentialState *creds,
>+static NTSTATUS netlogon_creds_des_encrypt_LMKey(struct netlogon_creds_CredentialState *creds,
> 					  struct netr_LMSessionKey *key)
> {
> 	int rc;
>@@ -308,7 +308,7 @@ NTSTATUS netlogon_creds_des_encrypt_LMKey(struct netlogon_creds_CredentialState
> /*
>   DES decrypt a 8 byte LMSessionKey buffer using the Netlogon session key
> */
>-NTSTATUS netlogon_creds_des_decrypt_LMKey(struct netlogon_creds_CredentialState *creds,
>+static NTSTATUS netlogon_creds_des_decrypt_LMKey(struct netlogon_creds_CredentialState *creds,
> 					  struct netr_LMSessionKey *key)
> {
> 	int rc;
>diff --git a/libcli/auth/proto.h b/libcli/auth/proto.h
>index f108c756a1f7..53a7d2062dbd 100644
>--- a/libcli/auth/proto.h
>+++ b/libcli/auth/proto.h
>@@ -16,10 +16,6 @@
> bool netlogon_creds_is_random_challenge(const struct netr_Credential *challenge);
> void netlogon_creds_random_challenge(struct netr_Credential *challenge);
> 
>-NTSTATUS netlogon_creds_des_encrypt_LMKey(struct netlogon_creds_CredentialState *creds,
>-					  struct netr_LMSessionKey *key);
>-NTSTATUS netlogon_creds_des_decrypt_LMKey(struct netlogon_creds_CredentialState *creds,
>-					  struct netr_LMSessionKey *key);
> NTSTATUS netlogon_creds_des_encrypt(struct netlogon_creds_CredentialState *creds,
> 				    struct samr_Password *pass);
> NTSTATUS netlogon_creds_des_decrypt(struct netlogon_creds_CredentialState *creds,
>-- 
>2.34.1
>
>
>From a330181f645deeeaf00886fe1c3542c54c0b594e Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 15:56:09 +0100
>Subject: [PATCH 50/69] libcli/auth: make use of
> netlogon_creds_encrypt_samr_CryptPassword
>
>This will help when implementing netr_ServerAuthenticateKerberos()...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 285ec9ecde712e40e6f0981bcb379ee911bfe9d8)
>---
> libcli/auth/netlogon_creds_cli.c | 23 +++++++----------------
> 1 file changed, 7 insertions(+), 16 deletions(-)
>
>diff --git a/libcli/auth/netlogon_creds_cli.c b/libcli/auth/netlogon_creds_cli.c
>index 78aa9bf8b759..017f30601396 100644
>--- a/libcli/auth/netlogon_creds_cli.c
>+++ b/libcli/auth/netlogon_creds_cli.c
>@@ -2346,22 +2346,13 @@ static void netlogon_creds_cli_ServerPasswordSet_locked(struct tevent_req *subre
> 
> 	if (state->tmp_creds.negotiate_flags & NETLOGON_NEG_PASSWORD_SET2) {
> 
>-		if (state->tmp_creds.negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-			status = netlogon_creds_aes_encrypt(&state->tmp_creds,
>-							    state->samr_crypt_password.data,
>-							    516);
>-			if (tevent_req_nterror(req, status)) {
>-				netlogon_creds_cli_ServerPasswordSet_cleanup(req, status);
>-				return;
>-			}
>-		} else {
>-			status = netlogon_creds_arcfour_crypt(&state->tmp_creds,
>-							      state->samr_crypt_password.data,
>-							      516);
>-			if (tevent_req_nterror(req, status)) {
>-				netlogon_creds_cli_ServerPasswordSet_cleanup(req, status);
>-				return;
>-			}
>+		status = netlogon_creds_encrypt_samr_CryptPassword(&state->tmp_creds,
>+								   &state->samr_crypt_password,
>+								   state->auth_type,
>+								   state->auth_level);
>+		if (tevent_req_nterror(req, status)) {
>+			netlogon_creds_cli_ServerPasswordSet_cleanup(req, status);
>+			return;
> 		}
> 
> 		memcpy(state->netr_crypt_password.data,
>-- 
>2.34.1
>
>
>From 19e2dc88fba286b68e9ab9b59b11896c5969f2e1 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 16:00:52 +0100
>Subject: [PATCH 51/69] libcli/auth: make use of
> netlogon_creds_encrypt_SendToSam
>
>This will help when implementing netr_ServerAuthenticateKerberos()...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 2bd77ff7314932dc4116773731a810fe0f7ce4b7)
>---
> libcli/auth/netlogon_creds_cli.c | 24 ++++++++----------------
> 1 file changed, 8 insertions(+), 16 deletions(-)
>
>diff --git a/libcli/auth/netlogon_creds_cli.c b/libcli/auth/netlogon_creds_cli.c
>index 017f30601396..3a42d57f0019 100644
>--- a/libcli/auth/netlogon_creds_cli.c
>+++ b/libcli/auth/netlogon_creds_cli.c
>@@ -4079,22 +4079,14 @@ static void netlogon_creds_cli_SendToSam_locked(struct tevent_req *subreq)
> 	}
> 	ZERO_STRUCT(state->rep_auth);
> 
>-	if (state->tmp_creds.negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-		status = netlogon_creds_aes_encrypt(&state->tmp_creds,
>-						    state->opaque.data,
>-						    state->opaque.length);
>-		if (tevent_req_nterror(req, status)) {
>-			netlogon_creds_cli_SendToSam_cleanup(req, status);
>-			return;
>-		}
>-	} else {
>-		status = netlogon_creds_arcfour_crypt(&state->tmp_creds,
>-						      state->opaque.data,
>-						      state->opaque.length);
>-		if (tevent_req_nterror(req, status)) {
>-			netlogon_creds_cli_SendToSam_cleanup(req, status);
>-			return;
>-		}
>+	status = netlogon_creds_encrypt_SendToSam(&state->tmp_creds,
>+						  state->opaque.data,
>+						  state->opaque.length,
>+						  state->auth_type,
>+						  state->auth_level);
>+	if (tevent_req_nterror(req, status)) {
>+		netlogon_creds_cli_SendToSam_cleanup(req, status);
>+		return;
> 	}
> 
> 	subreq = dcerpc_netr_NetrLogonSendToSam_send(state, state->ev,
>-- 
>2.34.1
>
>
>From a511c80ec1d2fcd02ed35cc5757c798ae4c89c67 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 17:19:09 +0100
>Subject: [PATCH 52/69] libcli/auth: make use of
> netlogon_creds_{de,en}crypt_samr_Password
>
>This will make it easier to implement netr_ServerAuthenticateKerberos() later...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit e92d0509d6b4d7f86e8626ba8c5efc5b786823f1)
>---
> libcli/auth/netlogon_creds_cli.c | 40 ++++++++++++++------------------
> 1 file changed, 18 insertions(+), 22 deletions(-)
>
>diff --git a/libcli/auth/netlogon_creds_cli.c b/libcli/auth/netlogon_creds_cli.c
>index 3a42d57f0019..fd9e71ad8c67 100644
>--- a/libcli/auth/netlogon_creds_cli.c
>+++ b/libcli/auth/netlogon_creds_cli.c
>@@ -2375,8 +2375,10 @@ static void netlogon_creds_cli_ServerPasswordSet_locked(struct tevent_req *subre
> 			return;
> 		}
> 	} else {
>-		status = netlogon_creds_des_encrypt(&state->tmp_creds,
>-						    &state->samr_password);
>+		status = netlogon_creds_encrypt_samr_Password(&state->tmp_creds,
>+							      &state->samr_password,
>+							      state->auth_type,
>+							      state->auth_level);
> 		if (tevent_req_nterror(req, status)) {
> 			netlogon_creds_cli_ServerPasswordSet_cleanup(req, status);
> 			return;
>@@ -3518,8 +3520,6 @@ static void netlogon_creds_cli_ServerGetTrustInfo_done(struct tevent_req *subreq
> 		struct netlogon_creds_cli_ServerGetTrustInfo_state);
> 	NTSTATUS status;
> 	NTSTATUS result;
>-	const struct samr_Password zero = {};
>-	bool cmp;
> 	bool ok;
> 
> 	/*
>@@ -3545,25 +3545,21 @@ static void netlogon_creds_cli_ServerGetTrustInfo_done(struct tevent_req *subreq
> 		return;
> 	}
> 
>-	cmp = mem_equal_const_time(state->new_owf_password.hash,
>-				   zero.hash, sizeof(zero.hash));
>-	if (!cmp) {
>-		status = netlogon_creds_des_decrypt(&state->tmp_creds,
>-						    &state->new_owf_password);
>-		if (tevent_req_nterror(req, status)) {
>-			netlogon_creds_cli_ServerGetTrustInfo_cleanup(req, status);
>-			return;
>-		}
>+	status = netlogon_creds_decrypt_samr_Password(&state->tmp_creds,
>+						      &state->new_owf_password,
>+						      state->auth_type,
>+						      state->auth_level);
>+	if (tevent_req_nterror(req, status)) {
>+		netlogon_creds_cli_ServerGetTrustInfo_cleanup(req, status);
>+		return;
> 	}
>-	cmp = mem_equal_const_time(state->old_owf_password.hash,
>-				   zero.hash, sizeof(zero.hash));
>-	if (!cmp) {
>-		status = netlogon_creds_des_decrypt(&state->tmp_creds,
>-						    &state->old_owf_password);
>-		if (tevent_req_nterror(req, status)) {
>-			netlogon_creds_cli_ServerGetTrustInfo_cleanup(req, status);
>-			return;
>-		}
>+	status = netlogon_creds_decrypt_samr_Password(&state->tmp_creds,
>+						      &state->old_owf_password,
>+						      state->auth_type,
>+						      state->auth_level);
>+	if (tevent_req_nterror(req, status)) {
>+		netlogon_creds_cli_ServerGetTrustInfo_cleanup(req, status);
>+		return;
> 	}
> 
> 	*state->creds = state->tmp_creds;
>-- 
>2.34.1
>
>
>From eba02a3fba7f23956f42b3ad71ff5a6d1852dc3c Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 12:58:11 +0100
>Subject: [PATCH 53/69] s4:torture/rpc: make use of
> netlogon_creds_encrypt_samlogon_logon()
>
>This will make it easier to catch all places where we need to
>implement the logic for netr_ServerAuthenticateKerberos...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 1666d1d74dec3978837ab49f8749d59c0abcf595)
>---
> source4/torture/rpc/remote_pac.c | 42 ++++++++++++++++++++------------
> source4/torture/rpc/samlogon.c   | 20 +++++++++------
> source4/torture/rpc/samr.c       | 21 ++++++++--------
> 3 files changed, 50 insertions(+), 33 deletions(-)
>
>diff --git a/source4/torture/rpc/remote_pac.c b/source4/torture/rpc/remote_pac.c
>index 8f4ee2bbc445..668962181640 100644
>--- a/source4/torture/rpc/remote_pac.c
>+++ b/source4/torture/rpc/remote_pac.c
>@@ -406,6 +406,9 @@ static bool netlogon_validate_pac(struct torture_context *tctx,
> 	struct dcerpc_binding_handle *b = NULL;
> 	enum ndr_err_code ndr_err;
> 	DATA_BLOB payload, pac_wrapped;
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
>+	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
>+	NTSTATUS status;
> 
> 	if (!test_SetupCredentials2(p1, tctx, negotiate_flags,
> 				    server_creds, secure_channel_type,
>@@ -437,11 +440,6 @@ static bool netlogon_validate_pac(struct torture_context *tctx,
> 	torture_assert(tctx, NDR_ERR_CODE_IS_SUCCESS(ndr_err), "ndr_push_struct_blob of PACValidate structure failed");
> 
> 	torture_assert(tctx, (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR), "not willing to even try a PACValidate without RC4 encryption");
>-	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-		netlogon_creds_aes_encrypt(creds, pac_wrapped.data, pac_wrapped.length);
>-	} else {
>-		netlogon_creds_arcfour_crypt(creds, pac_wrapped.data, pac_wrapped.length);
>-	}
> 
> 	generic.length = pac_wrapped.length;
> 	generic.data = pac_wrapped.data;
>@@ -471,6 +469,14 @@ static bool netlogon_validate_pac(struct torture_context *tctx,
> 	r.out.authoritative = &authoritative;
> 	r.out.return_authenticator = &return_authenticator;
> 
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samlogon_logon(creds,
>+						       r.in.logon_level,
>+						       r.in.logon,
>+						       auth_type,
>+						       auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samlogon_logon");
>+
> 	torture_assert_ntstatus_ok(tctx, dcerpc_netr_LogonSamLogon_r(b, tctx, &r),
> 		"LogonSamLogon failed");
> 
>@@ -546,11 +552,6 @@ static bool netlogon_validate_pac(struct torture_context *tctx,
> 	torture_assert(tctx, NDR_ERR_CODE_IS_SUCCESS(ndr_err), "ndr_push_struct_blob of PACValidate structure failed");
> 
> 	torture_assert(tctx, (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR), "not willing to even try a PACValidate without RC4 encryption");
>-	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-		netlogon_creds_aes_encrypt(creds, pac_wrapped.data, pac_wrapped.length);
>-	} else {
>-		netlogon_creds_arcfour_crypt(creds, pac_wrapped.data, pac_wrapped.length);
>-	}
> 
> 	generic.length = pac_wrapped.length;
> 	generic.data = pac_wrapped.data;
>@@ -567,6 +568,14 @@ static bool netlogon_validate_pac(struct torture_context *tctx,
> 	r.in.computer_name = cli_credentials_get_workstation(server_creds);
> 	r.in.validation_level = NetlogonValidationGenericInfo2;
> 
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samlogon_logon(creds,
>+						       r.in.logon_level,
>+						       r.in.logon,
>+						       auth_type,
>+						       auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samlogon_logon");
>+
> 	torture_assert_ntstatus_ok(tctx, dcerpc_netr_LogonSamLogon_r(b, tctx, &r),
> 		"LogonSamLogon failed");
> 
>@@ -598,11 +607,6 @@ static bool netlogon_validate_pac(struct torture_context *tctx,
> 	torture_assert(tctx, NDR_ERR_CODE_IS_SUCCESS(ndr_err), "ndr_push_struct_blob of PACValidate structure failed");
> 
> 	torture_assert(tctx, (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR), "not willing to even try a PACValidate without RC4 encryption");
>-	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-		netlogon_creds_aes_encrypt(creds, pac_wrapped.data, pac_wrapped.length);
>-	} else {
>-		netlogon_creds_arcfour_crypt(creds, pac_wrapped.data, pac_wrapped.length);
>-	}
> 
> 	generic.length = pac_wrapped.length;
> 	generic.data = pac_wrapped.data;
>@@ -619,6 +623,14 @@ static bool netlogon_validate_pac(struct torture_context *tctx,
> 	r.in.computer_name = cli_credentials_get_workstation(server_creds);
> 	r.in.validation_level = NetlogonValidationGenericInfo2;
> 
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samlogon_logon(creds,
>+						       r.in.logon_level,
>+						       r.in.logon,
>+						       auth_type,
>+						       auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samlogon_logon");
>+
> 	torture_assert_ntstatus_ok(tctx, dcerpc_netr_LogonSamLogon_r(b, tctx, &r),
> 		"LogonSamLogon failed");
> 
>diff --git a/source4/torture/rpc/samlogon.c b/source4/torture/rpc/samlogon.c
>index a9f8ff5b5b6a..57768aeb4113 100644
>--- a/source4/torture/rpc/samlogon.c
>+++ b/source4/torture/rpc/samlogon.c
>@@ -1551,6 +1551,10 @@ bool test_InteractiveLogon(struct dcerpc_pipe *p, TALLOC_CTX *mem_ctx,
> 	union netr_Validation validation;
> 	uint8_t authoritative = 1;
> 	struct dcerpc_binding_handle *b = p->binding_handle;
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
>+
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
> 
> 	ZERO_STRUCT(a);
> 	ZERO_STRUCT(r);
>@@ -1586,13 +1590,15 @@ bool test_InteractiveLogon(struct dcerpc_pipe *p, TALLOC_CTX *mem_ctx,
> 	}
> 	E_md4hash(plain_pass, pinfo.ntpassword.hash);
> 
>-	if (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR) {
>-		netlogon_creds_arcfour_crypt(creds, pinfo.lmpassword.hash, 16);
>-		netlogon_creds_arcfour_crypt(creds, pinfo.ntpassword.hash, 16);
>-	} else {
>-		netlogon_creds_des_encrypt(creds, &pinfo.lmpassword);
>-		netlogon_creds_des_encrypt(creds, &pinfo.ntpassword);
>-	}
>+	status = netlogon_creds_encrypt_samlogon_logon(creds,
>+						       r.in.logon_level,
>+						       r.in.logon,
>+						       auth_type,
>+						       auth_level);
>+	torture_assert_ntstatus_ok_goto(tctx,
>+		status,
>+		ret, failed,
>+		"netlogon_creds_encrypt_samlogon_logon");
> 
> 	torture_comment(tctx, "Testing netr_LogonSamLogonWithFlags '%s' (Interactive Logon)\n", comment);
> 
>diff --git a/source4/torture/rpc/samr.c b/source4/torture/rpc/samr.c
>index 22e0606de96e..ce57cdc055e6 100644
>--- a/source4/torture/rpc/samr.c
>+++ b/source4/torture/rpc/samr.c
>@@ -3607,6 +3607,8 @@ static bool test_SamLogon(struct torture_context *tctx,
> 	struct netlogon_creds_CredentialState *creds;
> 	struct netr_Authenticator a;
> 	struct dcerpc_binding_handle *b = p->binding_handle;
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
>+	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
> 
> 	torture_assert(tctx, (creds = cli_credentials_get_netlogon_creds(machine_credentials)), "");
> 
>@@ -3636,17 +3638,6 @@ static bool test_SamLogon(struct torture_context *tctx,
> 		}
> 		E_md4hash(cli_credentials_get_password(test_credentials), pinfo.ntpassword.hash);
> 
>-		if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-			netlogon_creds_aes_encrypt(creds, pinfo.lmpassword.hash, 16);
>-			netlogon_creds_aes_encrypt(creds, pinfo.ntpassword.hash, 16);
>-		} else if (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR) {
>-			netlogon_creds_arcfour_crypt(creds, pinfo.lmpassword.hash, 16);
>-			netlogon_creds_arcfour_crypt(creds, pinfo.ntpassword.hash, 16);
>-		} else {
>-			netlogon_creds_des_encrypt(creds, &pinfo.lmpassword);
>-			netlogon_creds_des_encrypt(creds, &pinfo.ntpassword);
>-		}
>-
> 		pinfo.identity_info = identity;
> 		logon.password = &pinfo;
> 
>@@ -3693,6 +3684,14 @@ static bool test_SamLogon(struct torture_context *tctx,
> 
> 	r.in.validation_level = 6;
> 
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samlogon_logon(creds,
>+						       r.in.logon_level,
>+						       r.in.logon,
>+						       auth_type,
>+						       auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samlogon_logon");
>+
> 	torture_assert_ntstatus_ok(tctx, dcerpc_netr_LogonSamLogonEx_r(b, tctx, &r),
> 		"netr_LogonSamLogonEx failed");
> 	if (NT_STATUS_EQUAL(r.out.result, NT_STATUS_INVALID_INFO_CLASS)) {
>-- 
>2.34.1
>
>
>From 43f2e0860855ba14ec24ce9aa6e853e6c47a1834 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 16:57:53 +0100
>Subject: [PATCH 54/69] s4:torture/rpc: make use of
> netlogon_creds_decrypt_samlogon_validation()
>
>This will make it easier to implement netr_ServerAuthenticateKerberos() later...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit a177d15c875030dfc6c11ead3ec3a3ec851261cb)
>---
> source4/torture/rpc/schannel.c | 32 ++++++++++++++++----------------
> 1 file changed, 16 insertions(+), 16 deletions(-)
>
>diff --git a/source4/torture/rpc/schannel.c b/source4/torture/rpc/schannel.c
>index 42b6f5d52644..cbd9e7ecac8d 100644
>--- a/source4/torture/rpc/schannel.c
>+++ b/source4/torture/rpc/schannel.c
>@@ -64,6 +64,7 @@ bool test_netlogon_ex_ops(struct dcerpc_pipe *p, struct torture_context *tctx,
> 	struct netr_SamBaseInfo *base = NULL;
> 	const char *crypto_alg = "";
> 	bool can_do_validation_6 = true;
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
> 	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
> 
> 	if (lpcfg_client_lanman_auth(tctx->lp_ctx)) {
>@@ -137,7 +138,7 @@ bool test_netlogon_ex_ops(struct dcerpc_pipe *p, struct torture_context *tctx,
> 		}
> 	}
> 
>-	dcerpc_binding_handle_auth_info(b, NULL, &auth_level);
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
> 	if (auth_level == DCERPC_AUTH_LEVEL_PRIVACY) {
> 		r.in.validation_level = 6;
> 
>@@ -208,13 +209,12 @@ bool test_netlogon_ex_ops(struct dcerpc_pipe *p, struct torture_context *tctx,
> 		dump_data(1, base->key.key, 16);
> 		dump_data(1, base->LMSessKey.key, 8);
> 
>-		if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-			netlogon_creds_aes_decrypt(creds, base->key.key, 16);
>-			netlogon_creds_aes_decrypt(creds, base->LMSessKey.key, 8);
>-		} else if (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR) {
>-			netlogon_creds_arcfour_crypt(creds, base->key.key, 16);
>-			netlogon_creds_arcfour_crypt(creds, base->LMSessKey.key, 8);
>-		}
>+		status = netlogon_creds_decrypt_samlogon_validation(creds,
>+								    r.in.validation_level,
>+								    r.out.validation,
>+								    auth_type,
>+								    auth_level);
>+		torture_assert_ntstatus_ok(tctx, status, "decrypt_samlogon_validation");
> 
> 		DEBUG(1,("decrypted keys validation_level %d\n",
> 			validation_levels[i]));
>@@ -277,6 +277,7 @@ static bool test_netlogon_ex_bug14932(struct dcerpc_pipe *p,
> 	struct netr_SamBaseInfo *base = NULL;
> 	const char *crypto_alg = "";
> 	bool can_do_validation_6 = true;
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
> 	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
> 
> 	flags |= CLI_CRED_NTLMv2_AUTH;
>@@ -342,7 +343,7 @@ static bool test_netlogon_ex_bug14932(struct dcerpc_pipe *p,
> 		}
> 	}
> 
>-	dcerpc_binding_handle_auth_info(b, NULL, &auth_level);
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
> 	if (auth_level == DCERPC_AUTH_LEVEL_PRIVACY) {
> 		r.in.validation_level = 6;
> 
>@@ -413,13 +414,12 @@ static bool test_netlogon_ex_bug14932(struct dcerpc_pipe *p,
> 		dump_data(1, base->key.key, 16);
> 		dump_data(1, base->LMSessKey.key, 8);
> 
>-		if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-			netlogon_creds_aes_decrypt(creds, base->key.key, 16);
>-			netlogon_creds_aes_decrypt(creds, base->LMSessKey.key, 8);
>-		} else if (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR) {
>-			netlogon_creds_arcfour_crypt(creds, base->key.key, 16);
>-			netlogon_creds_arcfour_crypt(creds, base->LMSessKey.key, 8);
>-		}
>+		status = netlogon_creds_decrypt_samlogon_validation(creds,
>+								    r.in.validation_level,
>+								    r.out.validation,
>+								    auth_type,
>+								    auth_level);
>+		torture_assert_ntstatus_ok(tctx, status, "decrypt_samlogon_validation");
> 
> 		DEBUG(1,("decrypted keys validation_level %d\n",
> 			validation_levels[i]));
>-- 
>2.34.1
>
>
>From 38ca65f83bf584812b7d9a33fcf5fd8341da0bfa Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 16:22:36 +0100
>Subject: [PATCH 55/69] s4:torture/rpc: make use of
> netlogon_creds_encrypt_samr_CryptPassword()
>
>This will make it easier to implement netr_ServerAuthenticateKerberos() later...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 2d7a47a175337729f4c671d7a6223f6e0ea23ebe)
>---
> source4/torture/rpc/lsa.c      |  19 +++---
> source4/torture/rpc/netlogon.c | 111 ++++++++++++++++++++++++---------
> 2 files changed, 91 insertions(+), 39 deletions(-)
>
>diff --git a/source4/torture/rpc/lsa.c b/source4/torture/rpc/lsa.c
>index 25dde5485e1c..c4439bfcb934 100644
>--- a/source4/torture/rpc/lsa.c
>+++ b/source4/torture/rpc/lsa.c
>@@ -4483,6 +4483,8 @@ static bool check_dom_trust_pw(struct dcerpc_pipe *p,
> 	struct tsocket_address *dest_addr;
> 	struct cldap_socket *cldap;
> 	struct cldap_netlogon cldap1;
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
> 
> 	incoming_creds = cli_credentials_init(tctx);
> 	torture_assert(tctx, incoming_creds, "cli_credentials_init");
>@@ -4638,15 +4640,14 @@ static bool check_dom_trust_pw(struct dcerpc_pipe *p,
> 	netlogon_creds_client_authenticator(creds, &req_auth);
> 	ZERO_STRUCT(rep_auth);
> 
>-	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-		netlogon_creds_aes_encrypt(creds,
>-					   samr_crypt_password.data,
>-					   516);
>-	} else {
>-		netlogon_creds_arcfour_crypt(creds,
>-					     samr_crypt_password.data,
>-					     516);
>-	}
>+	dcerpc_binding_handle_auth_info(p2->binding_handle,
>+					&auth_type,
>+					&auth_level);
>+	status = netlogon_creds_encrypt_samr_CryptPassword(creds,
>+							   &samr_crypt_password,
>+							   auth_type,
>+							   auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samr_CryptPassword");
> 
> 	memcpy(netr_crypt_password.data,
> 	       samr_crypt_password.data, 512);
>diff --git a/source4/torture/rpc/netlogon.c b/source4/torture/rpc/netlogon.c
>index 2ce0acb160a8..c31f24eed169 100644
>--- a/source4/torture/rpc/netlogon.c
>+++ b/source4/torture/rpc/netlogon.c
>@@ -1112,6 +1112,9 @@ static bool test_SetPassword2_with_flags(struct torture_context *tctx,
> 	struct netr_CryptPassword new_password;
> 	struct dcerpc_pipe *p = NULL;
> 	struct dcerpc_binding_handle *b = NULL;
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
>+	NTSTATUS status;
> 
> 	if (!test_SetupCredentials2(p1, tctx, flags, machine_credentials,
> 				    cli_credentials_get_secure_channel_type(machine_credentials),
>@@ -1134,11 +1137,12 @@ static bool test_SetPassword2_with_flags(struct torture_context *tctx,
> 
> 	password = generate_random_password(tctx, 8, 255);
> 	encode_pw_buffer(password_buf.data, password, STR_UNICODE);
>-	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-		netlogon_creds_aes_encrypt(creds, password_buf.data, 516);
>-	} else {
>-		netlogon_creds_arcfour_crypt(creds, password_buf.data, 516);
>-	}
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samr_CryptPassword(creds,
>+							   &password_buf,
>+							   auth_type,
>+							   auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samr_CryptPassword");
> 
> 	memcpy(new_password.data, password_buf.data, 512);
> 	new_password.length = IVAL(password_buf.data, 512);
>@@ -1168,11 +1172,12 @@ static bool test_SetPassword2_with_flags(struct torture_context *tctx,
> 	 */
> 	password = "";
> 	encode_pw_buffer(password_buf.data, password, STR_UNICODE);
>-	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-		netlogon_creds_aes_encrypt(creds, password_buf.data, 516);
>-	} else {
>-		netlogon_creds_arcfour_crypt(creds, password_buf.data, 516);
>-	}
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samr_CryptPassword(creds,
>+							   &password_buf,
>+							   auth_type,
>+							   auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samr_CryptPassword");
> 	memcpy(new_password.data, password_buf.data, 512);
> 	new_password.length = IVAL(password_buf.data, 512);
> 
>@@ -1195,11 +1200,12 @@ static bool test_SetPassword2_with_flags(struct torture_context *tctx,
> 	/* now try a random password */
> 	password = generate_random_password(tctx, 8, 255);
> 	encode_pw_buffer(password_buf.data, password, STR_UNICODE);
>-	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-		netlogon_creds_aes_encrypt(creds, password_buf.data, 516);
>-	} else {
>-		netlogon_creds_arcfour_crypt(creds, password_buf.data, 516);
>-	}
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samr_CryptPassword(creds,
>+							   &password_buf,
>+							   auth_type,
>+							   auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samr_CryptPassword");
> 	memcpy(new_password.data, password_buf.data, 512);
> 	new_password.length = IVAL(password_buf.data, 512);
> 
>@@ -1246,11 +1252,12 @@ static bool test_SetPassword2_with_flags(struct torture_context *tctx,
> 	/* now try a random stream of bytes for a password */
> 	set_pw_in_buffer(password_buf.data, &new_random_pass);
> 
>-	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-		netlogon_creds_aes_encrypt(creds, password_buf.data, 516);
>-	} else {
>-		netlogon_creds_arcfour_crypt(creds, password_buf.data, 516);
>-	}
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samr_CryptPassword(creds,
>+							   &password_buf,
>+							   auth_type,
>+							   auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samr_CryptPassword");
> 
> 	memcpy(new_password.data, password_buf.data, 512);
> 	new_password.length = IVAL(password_buf.data, 512);
>@@ -1299,6 +1306,9 @@ static bool test_SetPassword2_encrypted_to_all_zeros(
> 	struct netr_CryptPassword new_password;
> 	struct dcerpc_pipe *p = NULL;
> 	struct dcerpc_binding_handle *b = NULL;
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
>+	NTSTATUS status;
> 
> 	if (!test_ServerAuthenticate2_encrypts_to_zero(
> 		tctx,
>@@ -1338,7 +1348,12 @@ static bool test_SetPassword2_encrypted_to_all_zeros(
> 	if (!(creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES)) {
> 		torture_fail(tctx, "NETLOGON_NEG_SUPPORTS_AES not set");
> 	}
>-	netlogon_creds_aes_encrypt(creds, password_buf.data, 516);
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samr_CryptPassword(creds,
>+							   &password_buf,
>+							   auth_type,
>+							   auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samr_CryptPassword");
> 	if(!all_zero(password_buf.data, 516)) {
> 		torture_fail(tctx, "Password did not encrypt to all zeros\n");
> 	}
>@@ -1385,6 +1400,9 @@ static bool test_SetPassword2_password_encrypts_to_zero(
> 	struct netr_CryptPassword new_password;
> 	struct dcerpc_pipe *p = NULL;
> 	struct dcerpc_binding_handle *b = NULL;
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
>+	NTSTATUS status;
> 
> 	if (!test_ServerAuthenticate2_encrypts_to_zero(
> 		tctx,
>@@ -1425,7 +1443,12 @@ static bool test_SetPassword2_password_encrypts_to_zero(
> 	if (!(creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES)) {
> 		torture_fail(tctx, "NETLOGON_NEG_SUPPORTS_AES not set");
> 	}
>-	netlogon_creds_aes_encrypt(creds, password_buf.data, 516);
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samr_CryptPassword(creds,
>+							   &password_buf,
>+							   auth_type,
>+							   auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samr_CryptPassword");
> 
> 	memcpy(new_password.data, password_buf.data, 512);
> 	new_password.length = IVAL(password_buf.data, 512);
>@@ -1461,6 +1484,9 @@ static bool test_SetPassword2_confounder(
> 	struct netr_CryptPassword new_password;
> 	struct dcerpc_pipe *p = NULL;
> 	struct dcerpc_binding_handle *b = NULL;
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
>+	NTSTATUS status;
> 
> 	if (!test_ServerAuthenticate2_encrypts_to_zero(
> 		tctx,
>@@ -1502,7 +1528,12 @@ static bool test_SetPassword2_confounder(
> 	if (!(creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES)) {
> 		torture_fail(tctx, "NETLOGON_NEG_SUPPORTS_AES not set");
> 	}
>-	netlogon_creds_aes_encrypt(creds, password_buf.data, 516);
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samr_CryptPassword(creds,
>+							   &password_buf,
>+							   auth_type,
>+							   auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samr_CryptPassword");
> 
> 	memcpy(new_password.data, password_buf.data, 512);
> 	new_password.length = IVAL(password_buf.data, 512);
>@@ -1538,6 +1569,9 @@ static bool test_SetPassword2_all_zeros(
> 	struct dcerpc_pipe *p = NULL;
> 	struct dcerpc_binding_handle *b = NULL;
> 	uint32_t flags = NETLOGON_NEG_AUTH2_ADS_FLAGS; /* no AES desired here */
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
>+	NTSTATUS status;
> 
> 	if (!test_SetupCredentials2(
> 		p1,
>@@ -1576,7 +1610,12 @@ static bool test_SetPassword2_all_zeros(
> 	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
> 		torture_fail(tctx, "NETLOGON_NEG_SUPPORTS_AES enabled\n");
> 	}
>-	netlogon_creds_arcfour_crypt(creds, password_buf.data, 516);
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samr_CryptPassword(creds,
>+							   &password_buf,
>+							   auth_type,
>+							   auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samr_CryptPassword");
> 
> 	memcpy(new_password.data, password_buf.data, 512);
> 	new_password.length = IVAL(password_buf.data, 512);
>@@ -1615,6 +1654,9 @@ static bool test_SetPassword2_maximum_length_password(
> 	struct dcerpc_binding_handle *b = NULL;
> 	uint32_t flags = NETLOGON_NEG_AUTH2_ADS_FLAGS | NETLOGON_NEG_SUPPORTS_AES;
> 	DATA_BLOB new_random_pass = data_blob_null;
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
>+	NTSTATUS status;
> 
> 	if (!test_SetupCredentials2(
> 		p1,
>@@ -1652,11 +1694,12 @@ static bool test_SetPassword2_maximum_length_password(
> 	new_random_pass = netlogon_very_rand_pass(tctx, 256);
> 	set_pw_in_buffer(password_buf.data, &new_random_pass);
> 	SIVAL(password_buf.data, 512, 512);
>-	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-		netlogon_creds_aes_encrypt(creds, password_buf.data, 516);
>-	} else {
>-		netlogon_creds_arcfour_crypt(creds, password_buf.data, 516);
>-	}
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samr_CryptPassword(creds,
>+							   &password_buf,
>+							   auth_type,
>+							   auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samr_CryptPassword");
> 
> 	memcpy(new_password.data, password_buf.data, 512);
> 	new_password.length = IVAL(password_buf.data, 512);
>@@ -1697,6 +1740,9 @@ static bool test_SetPassword2_all_zero_password(
> 	struct dcerpc_pipe *p = NULL;
> 	struct dcerpc_binding_handle *b = NULL;
> 	uint32_t flags = NETLOGON_NEG_AUTH2_ADS_FLAGS; /* no AES desired here */
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
>+	NTSTATUS status;
> 
> 	if (!test_SetupCredentials2(
> 		p1,
>@@ -1736,7 +1782,12 @@ static bool test_SetPassword2_all_zero_password(
> 	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
> 		torture_fail(tctx, "NETLOGON_NEG_SUPPORTS_AES set");
> 	}
>-	netlogon_creds_arcfour_crypt(creds, password_buf.data, 516);
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samr_CryptPassword(creds,
>+							   &password_buf,
>+							   auth_type,
>+							   auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samr_CryptPassword");
> 
> 	memcpy(new_password.data, password_buf.data, 512);
> 	new_password.length = IVAL(password_buf.data, 512);
>-- 
>2.34.1
>
>
>From 9419da4b720fa6f5b9e12b30dde6dde39493f473 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 17:43:40 +0100
>Subject: [PATCH 56/69] s4:torture/rpc: make use of
> netlogon_creds_{de,en}crypt_samr_Password
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 172ce406d48916c57f0742b6a0e064ac170ec8ff)
>---
> source4/torture/rpc/forest_trust.c | 17 +++++++++++++--
> source4/torture/rpc/netlogon.c     | 35 +++++++++++++++++++++++++++---
> source4/torture/rpc/samba3rpc.c    | 11 +++++++++-
> source4/torture/rpc/schannel.c     | 11 +++++++++-
> 4 files changed, 67 insertions(+), 7 deletions(-)
>
>diff --git a/source4/torture/rpc/forest_trust.c b/source4/torture/rpc/forest_trust.c
>index e7b641e161a8..4a46382f32a1 100644
>--- a/source4/torture/rpc/forest_trust.c
>+++ b/source4/torture/rpc/forest_trust.c
>@@ -533,6 +533,8 @@ static bool test_validate_trust(struct torture_context *tctx,
> 	struct samr_Password *old_nt_hash;
> 	char *dummy;
> 	uint32_t trust_attributes = LSA_TRUST_ATTRIBUTE_FOREST_TRANSITIVE;
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
>+	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
> 
> 	status = dcerpc_parse_binding(tctx, binding, &b);
> 	torture_assert_ntstatus_ok(tctx, status, "Bad binding string");
>@@ -608,8 +610,19 @@ static bool test_validate_trust(struct torture_context *tctx,
> 	old_nt_hash = cli_credentials_get_old_nt_hash(credentials, tctx);
> 	torture_assert(tctx, old_nt_hash != NULL, "cli_credentials_get_old_nt_hash()");
> 
>-	netlogon_creds_des_decrypt(creds, &new_owf_password);
>-	netlogon_creds_des_decrypt(creds, &old_owf_password);
>+	dcerpc_binding_handle_auth_info(p->binding_handle,
>+					&auth_type,
>+					&auth_level);
>+	status = netlogon_creds_decrypt_samr_Password(creds,
>+						      &new_owf_password,
>+						      auth_type,
>+						      auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "decrypt_samr_Password");
>+	status = netlogon_creds_decrypt_samr_Password(creds,
>+						      &old_owf_password,
>+						      auth_type,
>+						      auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "decrypt_samr_Password");
> 
> 	dump_data(1, new_owf_password.hash, 16);
> 	dump_data(1, new_nt_hash->hash, 16);
>diff --git a/source4/torture/rpc/netlogon.c b/source4/torture/rpc/netlogon.c
>index c31f24eed169..c5a7929d7038 100644
>--- a/source4/torture/rpc/netlogon.c
>+++ b/source4/torture/rpc/netlogon.c
>@@ -932,6 +932,9 @@ static bool test_SetPassword(struct torture_context *tctx,
> 	struct netr_Authenticator credential, return_authenticator;
> 	struct samr_Password new_password;
> 	struct dcerpc_binding_handle *b = p->binding_handle;
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
>+	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
>+	NTSTATUS status;
> 
> 	if (!test_SetupCredentials(p, tctx, machine_credentials, &creds)) {
> 		return false;
>@@ -948,7 +951,12 @@ static bool test_SetPassword(struct torture_context *tctx,
> 	password = generate_random_password(tctx, 8, 255);
> 	E_md4hash(password, new_password.hash);
> 
>-	netlogon_creds_des_encrypt(creds, &new_password);
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samr_Password(creds,
>+						      &new_password,
>+						      auth_type,
>+						      auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samr_Password");
> 
> 	torture_comment(tctx, "Testing ServerPasswordSet on machine account\n");
> 	torture_comment(tctx, "Changing machine account password to '%s'\n",
>@@ -1007,6 +1015,9 @@ static bool test_SetPassword_flags(struct torture_context *tctx,
> 	struct samr_Password new_password;
> 	struct dcerpc_pipe *p = NULL;
> 	struct dcerpc_binding_handle *b = NULL;
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
>+	NTSTATUS status;
> 
> 	if (!test_SetupCredentials2(p1, tctx, negotiate_flags,
> 				    machine_credentials,
>@@ -1031,7 +1042,12 @@ static bool test_SetPassword_flags(struct torture_context *tctx,
> 	password = generate_random_password(tctx, 8, 255);
> 	E_md4hash(password, new_password.hash);
> 
>-	netlogon_creds_des_encrypt(creds, &new_password);
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_encrypt_samr_Password(creds,
>+						      &new_password,
>+						      auth_type,
>+						      auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "encrypt_samr_Password");
> 
> 	torture_comment(tctx, "Testing ServerPasswordSet on machine account\n");
> 	torture_comment(tctx, "Changing machine account password to '%s'\n",
>@@ -5038,6 +5054,9 @@ static bool test_netr_ServerGetTrustInfo_flags(struct torture_context *tctx,
> 	struct dcerpc_binding_handle *b = NULL;
> 
> 	struct samr_Password nt_hash;
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
>+	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
>+	NTSTATUS status;
> 
> 	if (!test_SetupCredentials3(p1, tctx, negotiate_flags,
> 				    machine_credentials, &creds)) {
>@@ -5069,7 +5088,17 @@ static bool test_netr_ServerGetTrustInfo_flags(struct torture_context *tctx,
> 
> 	E_md4hash(cli_credentials_get_password(machine_credentials), nt_hash.hash);
> 
>-	netlogon_creds_des_decrypt(creds, &new_owf_password);
>+	dcerpc_binding_handle_auth_info(b, &auth_type, &auth_level);
>+	status = netlogon_creds_decrypt_samr_Password(creds,
>+						      &new_owf_password,
>+						      auth_type,
>+						      auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "decrypt_samr_Password");
>+	status = netlogon_creds_decrypt_samr_Password(creds,
>+						      &old_owf_password,
>+						      auth_type,
>+						      auth_level);
>+	torture_assert_ntstatus_ok(tctx, status, "decrypt_samr_Password");
> 
> 	dump_data(1, new_owf_password.hash, 16);
> 	dump_data(1, nt_hash.hash, 16);
>diff --git a/source4/torture/rpc/samba3rpc.c b/source4/torture/rpc/samba3rpc.c
>index 96ff34f52700..0ce948895bc7 100644
>--- a/source4/torture/rpc/samba3rpc.c
>+++ b/source4/torture/rpc/samba3rpc.c
>@@ -1305,6 +1305,8 @@ static bool schan(struct torture_context *tctx,
> 		struct netlogon_creds_CredentialState *creds_state;
> 		struct netr_Authenticator credential, return_authenticator;
> 		struct samr_Password new_password;
>+		enum dcerpc_AuthType auth_type;
>+		enum dcerpc_AuthLevel auth_level;
> 
> 		s.in.server_name = talloc_asprintf(
> 			mem_ctx, "\\\\%s", dcerpc_server_name(net_pipe));
>@@ -1319,7 +1321,14 @@ static bool schan(struct torture_context *tctx,
> 		E_md4hash(password, new_password.hash);
> 
> 		creds_state = cli_credentials_get_netlogon_creds(wks_creds);
>-		netlogon_creds_des_encrypt(creds_state, &new_password);
>+		dcerpc_binding_handle_auth_info(net_handle,
>+						&auth_type,
>+						&auth_level);
>+		status = netlogon_creds_encrypt_samr_Password(creds_state,
>+							      &new_password,
>+							      auth_type,
>+							      auth_level);
>+		torture_assert_ntstatus_ok(tctx, status, "encrypt_samr_Password");
> 		netlogon_creds_client_authenticator(creds_state, &credential);
> 
> 		status = dcerpc_netr_ServerPasswordSet_r(net_handle, mem_ctx, &s);
>diff --git a/source4/torture/rpc/schannel.c b/source4/torture/rpc/schannel.c
>index cbd9e7ecac8d..371a78716441 100644
>--- a/source4/torture/rpc/schannel.c
>+++ b/source4/torture/rpc/schannel.c
>@@ -1286,6 +1286,8 @@ bool torture_rpc_schannel_bench1(struct torture_context *torture)
> 		struct dcerpc_pipe *net_pipe;
> 		struct netr_Authenticator credential, return_authenticator;
> 		struct samr_Password new_password;
>+		enum dcerpc_AuthType auth_type;
>+		enum dcerpc_AuthLevel auth_level;
> 
> 		status = dcerpc_pipe_connect_b(s, &net_pipe, s->b,
> 					       &ndr_table_netlogon,
>@@ -1310,7 +1312,14 @@ bool torture_rpc_schannel_bench1(struct torture_context *torture)
> 
> 		creds_state = cli_credentials_get_netlogon_creds(
> 			s->wks_creds1);
>-		netlogon_creds_des_encrypt(creds_state, &new_password);
>+		dcerpc_binding_handle_auth_info(net_pipe->binding_handle,
>+						&auth_type,
>+						&auth_level);
>+		status = netlogon_creds_encrypt_samr_Password(creds_state,
>+							      &new_password,
>+							      auth_type,
>+							      auth_level);
>+		torture_assert_ntstatus_ok(torture, status, "encrypt_samr_Password");
> 		netlogon_creds_client_authenticator(creds_state, &credential);
> 
> 		torture_assert_ntstatus_ok(torture, dcerpc_netr_ServerPasswordSet_r(net_pipe->binding_handle, torture, &pwset),
>-- 
>2.34.1
>
>
>From c7e4100d88d61ffecc20039a7b610dfe4b85e0c4 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 17:12:16 +0100
>Subject: [PATCH 57/69] s3:rpc_server/netlogon: make use of
> netlogon_creds_{de,en}crypt_samr_Password
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 550d20fd3dd04397b3a38f8b9e0cfa574453eea1)
>---
> source3/rpc_server/netlogon/srv_netlog_nt.c | 32 +++++++++++++++++----
> 1 file changed, 26 insertions(+), 6 deletions(-)
>
>diff --git a/source3/rpc_server/netlogon/srv_netlog_nt.c b/source3/rpc_server/netlogon/srv_netlog_nt.c
>index 8dce49946171..da1bdce2d0b1 100644
>--- a/source3/rpc_server/netlogon/srv_netlog_nt.c
>+++ b/source3/rpc_server/netlogon/srv_netlog_nt.c
>@@ -1308,6 +1308,10 @@ NTSTATUS _netr_ServerPasswordSet(struct pipes_struct *p,
> 	struct netlogon_creds_CredentialState *creds = NULL;
> 	struct _samr_Credentials_t cr = { CRED_TYPE_NT_HASH, {0}};
> 	const struct dom_sid *client_sid = NULL;
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
>+	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
>+
>+	dcesrv_call_auth_info(dce_call, &auth_type, &auth_level);
> 
> 	DEBUG(5,("_netr_ServerPasswordSet: %d\n", __LINE__));
> 
>@@ -1337,7 +1341,10 @@ NTSTATUS _netr_ServerPasswordSet(struct pipes_struct *p,
> 	DEBUG(3,("_netr_ServerPasswordSet: Server Password Set by remote machine:[%s] on account [%s]\n",
> 			r->in.computer_name, creds->computer_name));
> 
>-	status = netlogon_creds_des_decrypt(creds, r->in.new_password);
>+	status = netlogon_creds_decrypt_samr_Password(creds,
>+						      r->in.new_password,
>+						      auth_type,
>+						      auth_level);
> 	if (!NT_STATUS_IS_OK(status)) {
> 		return status;
> 	}
>@@ -2741,7 +2748,9 @@ static NTSTATUS get_password_from_trustAuth(TALLOC_CTX *mem_ctx,
> 					    const DATA_BLOB *trustAuth_blob,
> 					    struct netlogon_creds_CredentialState *creds,
> 					    struct samr_Password *current_pw_enc,
>-					    struct samr_Password *previous_pw_enc)
>+					    struct samr_Password *previous_pw_enc,
>+					    enum dcerpc_AuthType auth_type,
>+					    enum dcerpc_AuthLevel auth_level)
> {
> 	enum ndr_err_code ndr_err;
> 	struct trustAuthInOutBlob trustAuth;
>@@ -2758,7 +2767,10 @@ static NTSTATUS get_password_from_trustAuth(TALLOC_CTX *mem_ctx,
> 		mdfour(current_pw_enc->hash,
> 		       trustAuth.current.array[0].AuthInfo.clear.password,
> 		       trustAuth.current.array[0].AuthInfo.clear.size);
>-		status = netlogon_creds_des_encrypt(creds, current_pw_enc);
>+		status = netlogon_creds_encrypt_samr_Password(creds,
>+							      current_pw_enc,
>+							      auth_type,
>+							      auth_level);
> 		if (!NT_STATUS_IS_OK(status)) {
> 			return status;
> 		}
>@@ -2772,7 +2784,10 @@ static NTSTATUS get_password_from_trustAuth(TALLOC_CTX *mem_ctx,
> 		mdfour(previous_pw_enc->hash,
> 		       trustAuth.previous.array[0].AuthInfo.clear.password,
> 		       trustAuth.previous.array[0].AuthInfo.clear.size);
>-		status = netlogon_creds_des_encrypt(creds, previous_pw_enc);
>+		status = netlogon_creds_encrypt_samr_Password(creds,
>+							      previous_pw_enc,
>+							      auth_type,
>+							      auth_level);
> 		if (!NT_STATUS_IS_OK(status)) {
> 			return status;
> 		}
>@@ -2797,6 +2812,10 @@ NTSTATUS _netr_ServerGetTrustInfo(struct pipes_struct *p,
> 	bool trusted;
> 	struct netr_TrustInfo *trust_info;
> 	struct pdb_trusted_domain *td;
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
>+	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
>+
>+	dcesrv_call_auth_info(p->dce_call, &auth_type, &auth_level);
> 
> 	/* TODO: check server name */
> 
>@@ -2873,8 +2892,9 @@ NTSTATUS _netr_ServerGetTrustInfo(struct pipes_struct *p,
> 						     &td->trust_auth_incoming,
> 						     creds,
> 						     r->out.new_owf_password,
>-						     r->out.old_owf_password);
>-
>+						     r->out.old_owf_password,
>+						     auth_type,
>+						     auth_level);
> 		if (!NT_STATUS_IS_OK(status)) {
> 			return status;
> 		}
>-- 
>2.34.1
>
>
>From 2643e9e6dd2fcf285f2f95ee2f59ee06253b625f Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 16:25:11 +0100
>Subject: [PATCH 58/69] s3:rpc_server/netlogon: make use of
> netlogon_creds_decrypt_samr_CryptPassword()
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit a359b4139c8043ee3c3277b7559cb6d4f58f4044)
>---
> source3/rpc_server/netlogon/srv_netlog_nt.c | 17 ++++++++---------
> 1 file changed, 8 insertions(+), 9 deletions(-)
>
>diff --git a/source3/rpc_server/netlogon/srv_netlog_nt.c b/source3/rpc_server/netlogon/srv_netlog_nt.c
>index da1bdce2d0b1..0147602bc47e 100644
>--- a/source3/rpc_server/netlogon/srv_netlog_nt.c
>+++ b/source3/rpc_server/netlogon/srv_netlog_nt.c
>@@ -1384,6 +1384,10 @@ NTSTATUS _netr_ServerPasswordSet2(struct pipes_struct *p,
> 	struct samr_CryptPassword password_buf;
> 	struct _samr_Credentials_t cr = { CRED_TYPE_PLAIN_TEXT, {0}};
> 	bool ok;
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
>+	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
>+
>+	dcesrv_call_auth_info(dce_call, &auth_type, &auth_level);
> 
> 	become_root();
> 	status = dcesrv_netr_creds_server_step_check(p->dce_call,
>@@ -1412,15 +1416,10 @@ NTSTATUS _netr_ServerPasswordSet2(struct pipes_struct *p,
> 	memcpy(password_buf.data, r->in.new_password->data, 512);
> 	SIVAL(password_buf.data, 512, r->in.new_password->length);
> 
>-	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-		status = netlogon_creds_aes_decrypt(creds,
>-						    password_buf.data,
>-						    516);
>-	} else {
>-		status = netlogon_creds_arcfour_crypt(creds,
>-						      password_buf.data,
>-						      516);
>-	}
>+	status = netlogon_creds_decrypt_samr_CryptPassword(creds,
>+							   &password_buf,
>+							   auth_type,
>+							   auth_level);
> 	if (!NT_STATUS_IS_OK(status)) {
> 		TALLOC_FREE(creds);
> 		return status;
>-- 
>2.34.1
>
>
>From 271dd748fd7b15a3458d0c35038bf1d63a7a1ef2 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 16:28:47 +0100
>Subject: [PATCH 59/69] s4:rpc_server/netlogon: make use of
> netlogon_creds_{de,en}crypt_samr_Password()
>
>This will make it easier to implement netr_ServerAuthenticateKerberos() later...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 7a7cb0d0426a891185f5acf825573d98360e98e1)
>---
> source4/rpc_server/netlogon/dcerpc_netlogon.c | 23 ++++++++++++++++---
> 1 file changed, 20 insertions(+), 3 deletions(-)
>
>diff --git a/source4/rpc_server/netlogon/dcerpc_netlogon.c b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>index 050e6e4bcdde..fa859e1125ef 100644
>--- a/source4/rpc_server/netlogon/dcerpc_netlogon.c
>+++ b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>@@ -1010,6 +1010,10 @@ static NTSTATUS dcesrv_netr_ServerPasswordSet(struct dcesrv_call_state *dce_call
> 	const struct dom_sid *client_sid = NULL;
> 	struct ldb_context *sam_ctx;
> 	NTSTATUS nt_status;
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
>+	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
>+
>+	dcesrv_call_auth_info(dce_call, &auth_type, &auth_level);
> 
> 	nt_status = dcesrv_netr_creds_server_step_check(dce_call,
> 							mem_ctx,
>@@ -1024,7 +1028,10 @@ static NTSTATUS dcesrv_netr_ServerPasswordSet(struct dcesrv_call_state *dce_call
> 		return NT_STATUS_INVALID_SYSTEM_SERVICE;
> 	}
> 
>-	nt_status = netlogon_creds_des_decrypt(creds, r->in.new_password);
>+	nt_status = netlogon_creds_decrypt_samr_Password(creds,
>+							 r->in.new_password,
>+							 auth_type,
>+							 auth_level);
> 	NT_STATUS_NOT_OK_RETURN(nt_status);
> 
> 	/* Using the sid for the account as the key, set the password */
>@@ -4544,6 +4551,10 @@ static NTSTATUS dcesrv_netr_ServerGetTrustInfo(struct dcesrv_call_state *dce_cal
> 		NULL
> 	};
> 	struct netr_TrustInfo *trust_info = NULL;
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
>+	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
>+
>+	dcesrv_call_auth_info(dce_call, &auth_type, &auth_level);
> 
> 	ZERO_STRUCTP(r->out.new_owf_password);
> 	ZERO_STRUCTP(r->out.old_owf_password);
>@@ -4661,14 +4672,20 @@ static NTSTATUS dcesrv_netr_ServerGetTrustInfo(struct dcesrv_call_state *dce_cal
> 
> 	if (curNtHash != NULL) {
> 		*r->out.new_owf_password = *curNtHash;
>-		nt_status = netlogon_creds_des_encrypt(creds, r->out.new_owf_password);
>+		nt_status = netlogon_creds_encrypt_samr_Password(creds,
>+						r->out.new_owf_password,
>+						auth_type,
>+						auth_level);
> 		if (!NT_STATUS_IS_OK(nt_status)) {
> 			return nt_status;
> 		}
> 	}
> 	if (prevNtHash != NULL) {
> 		*r->out.old_owf_password = *prevNtHash;
>-		nt_status = netlogon_creds_des_encrypt(creds, r->out.old_owf_password);
>+		nt_status = netlogon_creds_encrypt_samr_Password(creds,
>+						r->out.old_owf_password,
>+						auth_type,
>+						auth_level);
> 		if (!NT_STATUS_IS_OK(nt_status)) {
> 			return nt_status;
> 		}
>-- 
>2.34.1
>
>
>From 85c727e7c5857e2e2bbc08b1c063996adb0f2e4f Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 16:30:19 +0100
>Subject: [PATCH 60/69] s4:rpc_server/netlogon: make use of
> netlogon_creds_decrypt_samr_CryptPassword
>
>This will make it easier to implement netr_ServerAuthenticateKerberos() later...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit f1c1b8661a9121e1ff02784955c98d9f33bca8bd)
>---
> source4/rpc_server/netlogon/dcerpc_netlogon.c | 18 ++++++++----------
> 1 file changed, 8 insertions(+), 10 deletions(-)
>
>diff --git a/source4/rpc_server/netlogon/dcerpc_netlogon.c b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>index fa859e1125ef..2597ee90eab9 100644
>--- a/source4/rpc_server/netlogon/dcerpc_netlogon.c
>+++ b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>@@ -1063,6 +1063,10 @@ static NTSTATUS dcesrv_netr_ServerPasswordSet2(struct dcesrv_call_state *dce_cal
> 	DATA_BLOB dec_blob = data_blob_null;
> 	DATA_BLOB enc_blob = data_blob_null;
> 	struct samr_CryptPassword password_buf;
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
>+	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
>+
>+	dcesrv_call_auth_info(dce_call, &auth_type, &auth_level);
> 
> 	nt_status = dcesrv_netr_creds_server_step_check(dce_call,
> 							mem_ctx,
>@@ -1080,16 +1084,10 @@ static NTSTATUS dcesrv_netr_ServerPasswordSet2(struct dcesrv_call_state *dce_cal
> 	memcpy(password_buf.data, r->in.new_password->data, 512);
> 	SIVAL(password_buf.data, 512, r->in.new_password->length);
> 
>-	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-		nt_status = netlogon_creds_aes_decrypt(creds,
>-						       password_buf.data,
>-						       516);
>-	} else {
>-		nt_status = netlogon_creds_arcfour_crypt(creds,
>-							 password_buf.data,
>-							 516);
>-	}
>-
>+	nt_status = netlogon_creds_decrypt_samr_CryptPassword(creds,
>+							      &password_buf,
>+							      auth_type,
>+							      auth_level);
> 	if (!NT_STATUS_IS_OK(nt_status)) {
> 		return nt_status;
> 	}
>-- 
>2.34.1
>
>
>From 337c81bfdb6facf65372df76ffa87c014036138a Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 16:30:19 +0100
>Subject: [PATCH 61/69] s4:rpc_server/netlogon: make use of
> netlogon_creds_decrypt_SendToSam
>
>This will make it easier to implement netr_ServerAuthenticateKerberos() later...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 834197dafef0f3779ba69c8e350cbd7bb9333284)
>---
> source4/rpc_server/netlogon/dcerpc_netlogon.c | 19 ++++++++++---------
> 1 file changed, 10 insertions(+), 9 deletions(-)
>
>diff --git a/source4/rpc_server/netlogon/dcerpc_netlogon.c b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>index 2597ee90eab9..8f1eb7abb6dd 100644
>--- a/source4/rpc_server/netlogon/dcerpc_netlogon.c
>+++ b/source4/rpc_server/netlogon/dcerpc_netlogon.c
>@@ -3161,6 +3161,10 @@ static NTSTATUS dcesrv_netr_NetrLogonSendToSam(struct dcesrv_call_state *dce_cal
> 	DATA_BLOB decrypted_blob;
> 	enum ndr_err_code ndr_err;
> 	struct netr_SendToSamBase base_msg = { 0 };
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
>+	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
>+
>+	dcesrv_call_auth_info(dce_call, &auth_type, &auth_level);
> 
> 	nt_status = dcesrv_netr_creds_server_step_check(dce_call,
> 							mem_ctx,
>@@ -3193,15 +3197,12 @@ static NTSTATUS dcesrv_netr_NetrLogonSendToSam(struct dcesrv_call_state *dce_cal
> 	}
> 
> 	/* Buffer is meant to be 16-bit aligned */
>-	if (creds->negotiate_flags & NETLOGON_NEG_SUPPORTS_AES) {
>-		nt_status = netlogon_creds_aes_decrypt(creds,
>-						       r->in.opaque_buffer,
>-						       r->in.buffer_len);
>-	} else {
>-		nt_status = netlogon_creds_arcfour_crypt(creds,
>-							 r->in.opaque_buffer,
>-							 r->in.buffer_len);
>-	}
>+
>+	nt_status = netlogon_creds_decrypt_SendToSam(creds,
>+						     r->in.opaque_buffer,
>+						     r->in.buffer_len,
>+						     auth_type,
>+						     auth_level);
> 	if (!NT_STATUS_IS_OK(nt_status)) {
> 		return nt_status;
> 	}
>-- 
>2.34.1
>
>
>From d7aa77632c1005a9b68898becee5c9c0a573dc64 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 28 Oct 2024 16:54:48 +0100
>Subject: [PATCH 62/69] libcli/auth: return INVALID_PARAMETER for DES in
> netlogon_creds_{de,en}crypt_samlogon_logon
>
>For the NetlogonGenericInformation case we want an error instead of no
>encryption if only DES was negotiated...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 131f5c0b251e456c466eaca744525504e1d69492)
>---
> libcli/auth/credentials.c | 1 +
> 1 file changed, 1 insertion(+)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index ec5552e60c07..4fcd1ff96c5b 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -1114,6 +1114,7 @@ static NTSTATUS netlogon_creds_crypt_samlogon_logon(struct netlogon_creds_Creden
> 			}
> 		} else {
> 			/* Using DES to verify kerberos tickets makes no sense */
>+			return NT_STATUS_INVALID_PARAMETER;
> 		}
> 		break;
> 	}
>-- 
>2.34.1
>
>
>From cbcb82d65e3e3be306202c1f311302af4e74e807 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Tue, 29 Oct 2024 09:44:52 +0100
>Subject: [PATCH 63/69] libcli/auth: pass auth_{type,level} to
> schannel_check_creds_state()
>
>This will make it easier to implement netr_ServerAuthenticateKerberos() later...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 7b02fb50143ba5044605ec67ed41180391835dcb)
>---
> libcli/auth/schannel_state.h               | 2 ++
> libcli/auth/schannel_state_tdb.c           | 2 ++
> librpc/rpc/server/netlogon/schannel_util.c | 2 ++
> 3 files changed, 6 insertions(+)
>
>diff --git a/libcli/auth/schannel_state.h b/libcli/auth/schannel_state.h
>index a333098458f8..5b33ba0ab23e 100644
>--- a/libcli/auth/schannel_state.h
>+++ b/libcli/auth/schannel_state.h
>@@ -37,6 +37,8 @@ NTSTATUS schannel_check_creds_state(TALLOC_CTX *mem_ctx,
> 				    const char *computer_name,
> 				    struct netr_Authenticator *received_authenticator,
> 				    struct netr_Authenticator *return_authenticator,
>+				    enum dcerpc_AuthType auth_type,
>+				    enum dcerpc_AuthLevel auth_level,
> 				    struct netlogon_creds_CredentialState **creds_out);
> 
> NTSTATUS schannel_get_challenge(struct loadparm_context *lp_ctx,
>diff --git a/libcli/auth/schannel_state_tdb.c b/libcli/auth/schannel_state_tdb.c
>index 4154997fc025..717d41b05d7b 100644
>--- a/libcli/auth/schannel_state_tdb.c
>+++ b/libcli/auth/schannel_state_tdb.c
>@@ -569,6 +569,8 @@ NTSTATUS schannel_check_creds_state(TALLOC_CTX *mem_ctx,
> 				    const char *computer_name,
> 				    struct netr_Authenticator *received_authenticator,
> 				    struct netr_Authenticator *return_authenticator,
>+				    enum dcerpc_AuthType auth_type,
>+				    enum dcerpc_AuthLevel auth_level,
> 				    struct netlogon_creds_CredentialState **creds_out)
> {
> 	TALLOC_CTX *tmpctx;
>diff --git a/librpc/rpc/server/netlogon/schannel_util.c b/librpc/rpc/server/netlogon/schannel_util.c
>index b98b4706aac1..359f4b8ed081 100644
>--- a/librpc/rpc/server/netlogon/schannel_util.c
>+++ b/librpc/rpc/server/netlogon/schannel_util.c
>@@ -548,6 +548,8 @@ NTSTATUS dcesrv_netr_creds_server_step_check(struct dcesrv_call_state *dce_call,
> 					       computer_name,
> 					       received_authenticator,
> 					       return_authenticator,
>+					       auth_type,
>+					       auth_level,
> 					       &creds);
> 	if (!NT_STATUS_IS_OK(nt_status)) {
> 		ZERO_STRUCTP(return_authenticator);
>-- 
>2.34.1
>
>
>From e16ff3f061b9be2ee8cb552525ab142113027f83 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Tue, 29 Oct 2024 09:46:07 +0100
>Subject: [PATCH 64/69] libcli/auth: pass auth_{type,level} to
> netlogon_creds_server_step_check()
>
>This will make it easier to implement netr_ServerAuthenticateKerberos() later...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 2956c7eb3c9fc2161fd2748e5aac1fc94478e8c7)
>---
> libcli/auth/credentials.c        | 4 +++-
> libcli/auth/proto.h              | 4 +++-
> libcli/auth/schannel_state_tdb.c | 4 +++-
> 3 files changed, 9 insertions(+), 3 deletions(-)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index 4fcd1ff96c5b..2c46c5a582c0 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -798,7 +798,9 @@ struct netlogon_creds_CredentialState *netlogon_creds_server_init(TALLOC_CTX *me
> 
> NTSTATUS netlogon_creds_server_step_check(struct netlogon_creds_CredentialState *creds,
> 				 const struct netr_Authenticator *received_authenticator,
>-				 struct netr_Authenticator *return_authenticator)
>+				 struct netr_Authenticator *return_authenticator,
>+				 enum dcerpc_AuthType auth_type,
>+				 enum dcerpc_AuthLevel auth_level)
> {
> 	NTSTATUS status;
> 
>diff --git a/libcli/auth/proto.h b/libcli/auth/proto.h
>index 53a7d2062dbd..75eb41abed1f 100644
>--- a/libcli/auth/proto.h
>+++ b/libcli/auth/proto.h
>@@ -71,7 +71,9 @@ struct netlogon_creds_CredentialState *netlogon_creds_server_init(TALLOC_CTX *me
> 								  uint32_t negotiate_flags);
> NTSTATUS netlogon_creds_server_step_check(struct netlogon_creds_CredentialState *creds,
> 				 const struct netr_Authenticator *received_authenticator,
>-				 struct netr_Authenticator *return_authenticator) ;
>+				 struct netr_Authenticator *return_authenticator,
>+				 enum dcerpc_AuthType auth_type,
>+				 enum dcerpc_AuthLevel auth_level);
> NTSTATUS netlogon_creds_decrypt_samlogon_validation(struct netlogon_creds_CredentialState *creds,
> 						    uint16_t validation_level,
> 						    union netr_Validation *validation,
>diff --git a/libcli/auth/schannel_state_tdb.c b/libcli/auth/schannel_state_tdb.c
>index 717d41b05d7b..b823ab6471d7 100644
>--- a/libcli/auth/schannel_state_tdb.c
>+++ b/libcli/auth/schannel_state_tdb.c
>@@ -630,7 +630,9 @@ NTSTATUS schannel_check_creds_state(TALLOC_CTX *mem_ctx,
> 
> 	status = netlogon_creds_server_step_check(creds,
> 						  received_authenticator,
>-						  return_authenticator);
>+						  return_authenticator,
>+						  auth_type,
>+						  auth_level);
> 	if (!NT_STATUS_IS_OK(status)) {
> 		goto done;
> 	}
>-- 
>2.34.1
>
>
>From d60d3cf8a6512460a39a6ca5aa2a3f72cc9b9623 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Tue, 29 Oct 2024 09:54:42 +0100
>Subject: [PATCH 65/69] libcli/auth: split out netlogon_creds_client_verify()
> that takes auth_{type,level}
>
>This will make it easier to implement netr_ServerAuthenticateKerberos()
>later...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 45faf6c35a033ec46a546dfb9d5d6aeb2fb2b83c)
>---
> libcli/auth/credentials.c | 24 ++++++++++++++++++++++--
> libcli/auth/proto.h       |  4 ++++
> 2 files changed, 26 insertions(+), 2 deletions(-)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index 2c46c5a582c0..2d2da080efe3 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -657,14 +657,34 @@ netlogon_creds_client_authenticator(struct netlogon_creds_CredentialState *creds
> /*
>   check that a credentials reply from a server is correct
> */
>-bool netlogon_creds_client_check(struct netlogon_creds_CredentialState *creds,
>-			const struct netr_Credential *received_credentials)
>+NTSTATUS netlogon_creds_client_verify(struct netlogon_creds_CredentialState *creds,
>+			const struct netr_Credential *received_credentials,
>+			enum dcerpc_AuthType auth_type,
>+			enum dcerpc_AuthLevel auth_level)
> {
> 	if (!received_credentials ||
> 	    !mem_equal_const_time(received_credentials->data, creds->server.data, 8)) {
> 		DEBUG(2,("credentials check failed\n"));
>+		return NT_STATUS_ACCESS_DENIED;
>+	}
>+	return NT_STATUS_OK;
>+}
>+
>+bool netlogon_creds_client_check(struct netlogon_creds_CredentialState *creds,
>+			const struct netr_Credential *received_credentials)
>+{
>+	enum dcerpc_AuthType auth_type = DCERPC_AUTH_TYPE_NONE;
>+	enum dcerpc_AuthLevel auth_level = DCERPC_AUTH_LEVEL_NONE;
>+	NTSTATUS status;
>+
>+	status = netlogon_creds_client_verify(creds,
>+					      received_credentials,
>+					      auth_type,
>+					      auth_level);
>+	if (!NT_STATUS_IS_OK(status)) {
> 		return false;
> 	}
>+
> 	return true;
> }
> 
>diff --git a/libcli/auth/proto.h b/libcli/auth/proto.h
>index 75eb41abed1f..4c0c4243217c 100644
>--- a/libcli/auth/proto.h
>+++ b/libcli/auth/proto.h
>@@ -47,6 +47,10 @@ struct netlogon_creds_CredentialState *netlogon_creds_client_init(TALLOC_CTX *me
> NTSTATUS
> netlogon_creds_client_authenticator(struct netlogon_creds_CredentialState *creds,
> 				    struct netr_Authenticator *next);
>+NTSTATUS netlogon_creds_client_verify(struct netlogon_creds_CredentialState *creds,
>+			const struct netr_Credential *received_credentials,
>+			enum dcerpc_AuthType auth_type,
>+			enum dcerpc_AuthLevel auth_level);
> bool netlogon_creds_client_check(struct netlogon_creds_CredentialState *creds,
> 			const struct netr_Credential *received_credentials);
> struct netlogon_creds_CredentialState *netlogon_creds_copy(
>-- 
>2.34.1
>
>
>From 81bf2ba11dd134e2a51c5f8c9c4f57763fdaa4ed Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Tue, 29 Oct 2024 10:02:40 +0100
>Subject: [PATCH 66/69] libcli/auth: make use of netlogon_creds_client_verify()
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 1a5984ac6312b204b51590057b8327cf4698383b)
>---
> libcli/auth/netlogon_creds_cli.c | 124 +++++++++++++++----------------
> 1 file changed, 62 insertions(+), 62 deletions(-)
>
>diff --git a/libcli/auth/netlogon_creds_cli.c b/libcli/auth/netlogon_creds_cli.c
>index fd9e71ad8c67..eabd2183f8c3 100644
>--- a/libcli/auth/netlogon_creds_cli.c
>+++ b/libcli/auth/netlogon_creds_cli.c
>@@ -1220,6 +1220,8 @@ struct netlogon_creds_cli_auth_state {
> 	struct tevent_context *ev;
> 	struct netlogon_creds_cli_context *context;
> 	struct dcerpc_binding_handle *binding_handle;
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
> 	uint8_t num_nt_hashes;
> 	uint8_t idx_nt_hashes;
> 	const struct samr_Password * const *nt_hashes;
>@@ -1284,6 +1286,10 @@ struct tevent_req *netlogon_creds_cli_auth_send(TALLOC_CTX *mem_ctx,
> 		return tevent_req_post(req, ev);
> 	}
> 
>+	dcerpc_binding_handle_auth_info(state->binding_handle,
>+					&state->auth_type,
>+					&state->auth_level);
>+
> 	state->try_auth3 = true;
> 	state->try_auth2 = true;
> 
>@@ -1458,7 +1464,6 @@ static void netlogon_creds_cli_auth_srvauth_done(struct tevent_req *subreq)
> 		struct netlogon_creds_cli_auth_state);
> 	NTSTATUS status;
> 	NTSTATUS result;
>-	bool ok;
> 	bool downgraded;
> 
> 	if (state->try_auth3) {
>@@ -1552,10 +1557,11 @@ static void netlogon_creds_cli_auth_srvauth_done(struct tevent_req *subreq)
> 		return;
> 	}
> 
>-	ok = netlogon_creds_client_check(state->creds,
>-					 &state->server_credential);
>-	if (!ok) {
>-		tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
>+	status = netlogon_creds_client_verify(state->creds,
>+					      &state->server_credential,
>+					      state->auth_type,
>+					      state->auth_level);
>+	if (tevent_req_nterror(req, status)) {
> 		return;
> 	}
> 
>@@ -1640,6 +1646,8 @@ struct netlogon_creds_cli_check_state {
> 	struct tevent_context *ev;
> 	struct netlogon_creds_cli_context *context;
> 	struct dcerpc_binding_handle *binding_handle;
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
> 
> 	char *srv_name_slash;
> 
>@@ -1666,8 +1674,6 @@ struct tevent_req *netlogon_creds_cli_check_send(TALLOC_CTX *mem_ctx,
> 	struct tevent_req *req;
> 	struct netlogon_creds_cli_check_state *state;
> 	struct tevent_req *subreq;
>-	enum dcerpc_AuthType auth_type;
>-	enum dcerpc_AuthLevel auth_level;
> 	NTSTATUS status;
> 
> 	req = tevent_req_create(mem_ctx, &state,
>@@ -1698,14 +1704,15 @@ struct tevent_req *netlogon_creds_cli_check_send(TALLOC_CTX *mem_ctx,
> 	}
> 
> 	dcerpc_binding_handle_auth_info(state->binding_handle,
>-					&auth_type, &auth_level);
>+					&state->auth_type,
>+					&state->auth_level);
> 
>-	if (auth_type != DCERPC_AUTH_TYPE_SCHANNEL) {
>+	if (state->auth_type != DCERPC_AUTH_TYPE_SCHANNEL) {
> 		tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
> 		return tevent_req_post(req, ev);
> 	}
> 
>-	switch (auth_level) {
>+	switch (state->auth_level) {
> 	case DCERPC_AUTH_LEVEL_INTEGRITY:
> 	case DCERPC_AUTH_LEVEL_PRIVACY:
> 		break;
>@@ -1782,7 +1789,6 @@ static void netlogon_creds_cli_check_negotiate_caps(struct tevent_req *subreq)
> 		struct netlogon_creds_cli_check_state);
> 	NTSTATUS status;
> 	NTSTATUS result;
>-	bool ok;
> 
> 	status = dcerpc_netr_LogonGetCapabilities_recv(subreq, state,
> 						       &result);
>@@ -1874,10 +1880,11 @@ static void netlogon_creds_cli_check_negotiate_caps(struct tevent_req *subreq)
> 		return;
> 	}
> 
>-	ok = netlogon_creds_client_check(state->creds, &state->rep_auth.cred);
>-	if (!ok) {
>-		status = NT_STATUS_ACCESS_DENIED;
>-		tevent_req_nterror(req, status);
>+	status = netlogon_creds_client_verify(state->creds,
>+					      &state->rep_auth.cred,
>+					      state->auth_type,
>+					      state->auth_level);
>+	if (tevent_req_nterror(req, status)) {
> 		netlogon_creds_cli_check_cleanup(req, status);
> 		return;
> 	}
>@@ -1956,7 +1963,6 @@ static void netlogon_creds_cli_check_client_caps(struct tevent_req *subreq)
> 	uint32_t requested_flags;
> 	NTSTATUS status;
> 	NTSTATUS result;
>-	bool ok;
> 
> 	status = dcerpc_netr_LogonGetCapabilities_recv(subreq, state,
> 						       &result);
>@@ -1992,11 +1998,11 @@ static void netlogon_creds_cli_check_client_caps(struct tevent_req *subreq)
> 		return;
> 	}
> 
>-	ok = netlogon_creds_client_check(state->creds,
>-					 &state->rep_auth.cred);
>-	if (!ok) {
>-		status = NT_STATUS_ACCESS_DENIED;
>-		tevent_req_nterror(req, status);
>+	status = netlogon_creds_client_verify(state->creds,
>+					      &state->rep_auth.cred,
>+					      state->auth_type,
>+					      state->auth_level);
>+	if (tevent_req_nterror(req, status)) {
> 		netlogon_creds_cli_check_cleanup(req, status);
> 		return;
> 	}
>@@ -2415,7 +2421,6 @@ static void netlogon_creds_cli_ServerPasswordSet_done(struct tevent_req *subreq)
> 		struct netlogon_creds_cli_ServerPasswordSet_state);
> 	NTSTATUS status;
> 	NTSTATUS result;
>-	bool ok;
> 
> 	if (state->tmp_creds.negotiate_flags & NETLOGON_NEG_PASSWORD_SET2) {
> 		status = dcerpc_netr_ServerPasswordSet2_recv(subreq, state,
>@@ -2435,11 +2440,11 @@ static void netlogon_creds_cli_ServerPasswordSet_done(struct tevent_req *subreq)
> 		}
> 	}
> 
>-	ok = netlogon_creds_client_check(&state->tmp_creds,
>-					 &state->rep_auth.cred);
>-	if (!ok) {
>-		status = NT_STATUS_ACCESS_DENIED;
>-		tevent_req_nterror(req, status);
>+	status = netlogon_creds_client_verify(&state->tmp_creds,
>+					      &state->rep_auth.cred,
>+					      state->auth_type,
>+					      state->auth_level);
>+	if (tevent_req_nterror(req, status)) {
> 		netlogon_creds_cli_ServerPasswordSet_cleanup(req, status);
> 		return;
> 	}
>@@ -2971,11 +2976,11 @@ static void netlogon_creds_cli_LogonSamLogon_done(struct tevent_req *subreq)
> 		}
> 	}
> 
>-	ok = netlogon_creds_client_check(&state->tmp_creds,
>-					 &state->rep_auth.cred);
>-	if (!ok) {
>-		status = NT_STATUS_ACCESS_DENIED;
>-		tevent_req_nterror(req, status);
>+	status = netlogon_creds_client_verify(&state->tmp_creds,
>+					      &state->rep_auth.cred,
>+					      auth_type,
>+					      auth_level);
>+	if (tevent_req_nterror(req, status)) {
> 		netlogon_creds_cli_LogonSamLogon_cleanup(req, status);
> 		return;
> 	}
>@@ -3263,7 +3268,6 @@ static void netlogon_creds_cli_DsrUpdateReadOnlyServerDnsRecords_done(struct tev
> 		struct netlogon_creds_cli_DsrUpdateReadOnlyServerDnsRecords_state);
> 	NTSTATUS status;
> 	NTSTATUS result;
>-	bool ok;
> 
> 	/*
> 	 * We use state->dns_names as the memory context, as this is
>@@ -3280,11 +3284,11 @@ static void netlogon_creds_cli_DsrUpdateReadOnlyServerDnsRecords_done(struct tev
> 		return;
> 	}
> 
>-	ok = netlogon_creds_client_check(&state->tmp_creds,
>-					 &state->rep_auth.cred);
>-	if (!ok) {
>-		status = NT_STATUS_ACCESS_DENIED;
>-		tevent_req_nterror(req, status);
>+	status = netlogon_creds_client_verify(&state->tmp_creds,
>+					      &state->rep_auth.cred,
>+					      state->auth_type,
>+					      state->auth_level);
>+	if (tevent_req_nterror(req, status)) {
> 		netlogon_creds_cli_DsrUpdateReadOnlyServerDnsRecords_cleanup(req, status);
> 		return;
> 	}
>@@ -3520,7 +3524,6 @@ static void netlogon_creds_cli_ServerGetTrustInfo_done(struct tevent_req *subreq
> 		struct netlogon_creds_cli_ServerGetTrustInfo_state);
> 	NTSTATUS status;
> 	NTSTATUS result;
>-	bool ok;
> 
> 	/*
> 	 * We use state->dns_names as the memory context, as this is
>@@ -3536,11 +3539,11 @@ static void netlogon_creds_cli_ServerGetTrustInfo_done(struct tevent_req *subreq
> 		return;
> 	}
> 
>-	ok = netlogon_creds_client_check(&state->tmp_creds,
>-					 &state->rep_auth.cred);
>-	if (!ok) {
>-		status = NT_STATUS_ACCESS_DENIED;
>-		tevent_req_nterror(req, status);
>+	status = netlogon_creds_client_verify(&state->tmp_creds,
>+					      &state->rep_auth.cred,
>+					      state->auth_type,
>+					      state->auth_level);
>+	if (tevent_req_nterror(req, status)) {
> 		netlogon_creds_cli_ServerGetTrustInfo_cleanup(req, status);
> 		return;
> 	}
>@@ -3824,7 +3827,6 @@ static void netlogon_creds_cli_GetForestTrustInformation_done(struct tevent_req
> 		struct netlogon_creds_cli_GetForestTrustInformation_state);
> 	NTSTATUS status;
> 	NTSTATUS result;
>-	bool ok;
> 
> 	/*
> 	 * We use state->dns_names as the memory context, as this is
>@@ -3840,11 +3842,11 @@ static void netlogon_creds_cli_GetForestTrustInformation_done(struct tevent_req
> 		return;
> 	}
> 
>-	ok = netlogon_creds_client_check(&state->tmp_creds,
>-					 &state->rep_auth.cred);
>-	if (!ok) {
>-		status = NT_STATUS_ACCESS_DENIED;
>-		tevent_req_nterror(req, status);
>+	status = netlogon_creds_client_verify(&state->tmp_creds,
>+					      &state->rep_auth.cred,
>+					      state->auth_type,
>+					      state->auth_level);
>+	if (tevent_req_nterror(req, status)) {
> 		netlogon_creds_cli_GetForestTrustInformation_cleanup(req, status);
> 		return;
> 	}
>@@ -4114,7 +4116,6 @@ static void netlogon_creds_cli_SendToSam_done(struct tevent_req *subreq)
> 		struct netlogon_creds_cli_SendToSam_state);
> 	NTSTATUS status;
> 	NTSTATUS result;
>-	bool ok;
> 
> 	status = dcerpc_netr_NetrLogonSendToSam_recv(subreq, state, &result);
> 	TALLOC_FREE(subreq);
>@@ -4123,11 +4124,11 @@ static void netlogon_creds_cli_SendToSam_done(struct tevent_req *subreq)
> 		return;
> 	}
> 
>-	ok = netlogon_creds_client_check(&state->tmp_creds,
>-					 &state->rep_auth.cred);
>-	if (!ok) {
>-		status = NT_STATUS_ACCESS_DENIED;
>-		tevent_req_nterror(req, status);
>+	status = netlogon_creds_client_verify(&state->tmp_creds,
>+					      &state->rep_auth.cred,
>+					      state->auth_type,
>+					      state->auth_level);
>+	if (tevent_req_nterror(req, status)) {
> 		netlogon_creds_cli_SendToSam_cleanup(req, status);
> 		return;
> 	}
>@@ -4382,7 +4383,6 @@ static void netlogon_creds_cli_LogonGetDomainInfo_done(struct tevent_req *subreq
> 		struct netlogon_creds_cli_LogonGetDomainInfo_state);
> 	NTSTATUS status;
> 	NTSTATUS result;
>-	bool ok;
> 
> 	/*
> 	 * We use state->dns_names as the memory context, as this is
>@@ -4398,11 +4398,11 @@ static void netlogon_creds_cli_LogonGetDomainInfo_done(struct tevent_req *subreq
> 		return;
> 	}
> 
>-	ok = netlogon_creds_client_check(&state->tmp_creds,
>-					 &state->rep_auth.cred);
>-	if (!ok) {
>-		status = NT_STATUS_ACCESS_DENIED;
>-		tevent_req_nterror(req, status);
>+	status = netlogon_creds_client_verify(&state->tmp_creds,
>+					      &state->rep_auth.cred,
>+					      state->auth_type,
>+					      state->auth_level);
>+	if (tevent_req_nterror(req, status)) {
> 		netlogon_creds_cli_LogonGetDomainInfo_cleanup(req, status);
> 		return;
> 	}
>-- 
>2.34.1
>
>
>From f3c9e785dbc6cb379d3ed077dfd917c6b6da9343 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Tue, 29 Oct 2024 10:31:52 +0100
>Subject: [PATCH 67/69] s4:librpc/rpc: make use of
> netlogon_creds_client_verify()
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 132629ee3a9b73d0888d1110e4d0a45ded778e5a)
>---
> source4/librpc/rpc/dcerpc_schannel.c | 46 +++++++++++++++++++++++-----
> 1 file changed, 38 insertions(+), 8 deletions(-)
>
>diff --git a/source4/librpc/rpc/dcerpc_schannel.c b/source4/librpc/rpc/dcerpc_schannel.c
>index ca0495c4d472..8622791fe302 100644
>--- a/source4/librpc/rpc/dcerpc_schannel.c
>+++ b/source4/librpc/rpc/dcerpc_schannel.c
>@@ -222,10 +222,17 @@ static void continue_srv_auth2(struct tevent_req *subreq)
> {
> 	struct composite_context *c;
> 	struct schannel_key_state *s;
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
>+	NTSTATUS status;
> 
> 	c = tevent_req_callback_data(subreq, struct composite_context);
> 	s = talloc_get_type(c->private_data, struct schannel_key_state);
> 
>+	dcerpc_binding_handle_auth_info(s->pipe2->binding_handle,
>+					&auth_type,
>+					&auth_level);
>+
> 	/* receive rpc request result - auth2 credentials */ 
> 	c->status = dcerpc_netr_ServerAuthenticate2_r_recv(subreq, s);
> 	TALLOC_FREE(subreq);
>@@ -328,8 +335,12 @@ static void continue_srv_auth2(struct tevent_req *subreq)
> 	}
> 
> 	/* verify credentials */
>-	if (!netlogon_creds_client_check(s->creds, s->a.out.return_credentials)) {
>-		composite_error(c, NT_STATUS_UNSUCCESSFUL);
>+	status = netlogon_creds_client_verify(s->creds,
>+					      s->a.out.return_credentials,
>+					      auth_type,
>+					      auth_level);
>+	if (!NT_STATUS_IS_OK(status)) {
>+		composite_error(c, status);
> 		return;
> 	}
> 
>@@ -602,11 +613,17 @@ static void continue_get_negotiated_capabilities(struct tevent_req *subreq)
> {
> 	struct composite_context *c;
> 	struct auth_schannel_state *s;
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
> 	NTSTATUS status;
> 
> 	c = tevent_req_callback_data(subreq, struct composite_context);
> 	s = talloc_get_type(c->private_data, struct auth_schannel_state);
> 
>+	dcerpc_binding_handle_auth_info(s->pipe->binding_handle,
>+					&auth_type,
>+					&auth_level);
>+
> 	/* receive rpc request result */
> 	c->status = dcerpc_netr_LogonGetCapabilities_r_recv(subreq, s);
> 	TALLOC_FREE(subreq);
>@@ -642,9 +659,12 @@ static void continue_get_negotiated_capabilities(struct tevent_req *subreq)
> 	}
> 
> 	/* verify credentials */
>-	if (!netlogon_creds_client_check(&s->save_creds_state,
>-					 &s->c.out.return_authenticator->cred)) {
>-		composite_error(c, NT_STATUS_UNSUCCESSFUL);
>+	status = netlogon_creds_client_verify(&s->save_creds_state,
>+					      &s->c.out.return_authenticator->cred,
>+					      auth_type,
>+					      auth_level);
>+	if (!NT_STATUS_IS_OK(status)) {
>+		composite_error(c, status);
> 		return;
> 	}
> 
>@@ -705,10 +725,17 @@ static void continue_get_client_capabilities(struct tevent_req *subreq)
> {
> 	struct composite_context *c;
> 	struct auth_schannel_state *s;
>+	enum dcerpc_AuthType auth_type;
>+	enum dcerpc_AuthLevel auth_level;
>+	NTSTATUS status;
> 
> 	c = tevent_req_callback_data(subreq, struct composite_context);
> 	s = talloc_get_type(c->private_data, struct auth_schannel_state);
> 
>+	dcerpc_binding_handle_auth_info(s->pipe->binding_handle,
>+					&auth_type,
>+					&auth_level);
>+
> 	/* receive rpc request result */
> 	c->status = dcerpc_netr_LogonGetCapabilities_r_recv(subreq, s);
> 	TALLOC_FREE(subreq);
>@@ -743,9 +770,12 @@ static void continue_get_client_capabilities(struct tevent_req *subreq)
> 	}
> 
> 	/* verify credentials */
>-	if (!netlogon_creds_client_check(&s->save_creds_state,
>-					 &s->c.out.return_authenticator->cred)) {
>-		composite_error(c, NT_STATUS_UNSUCCESSFUL);
>+	status = netlogon_creds_client_verify(&s->save_creds_state,
>+					      &s->c.out.return_authenticator->cred,
>+					      auth_type,
>+					      auth_level);
>+	if (!NT_STATUS_IS_OK(status)) {
>+		composite_error(c, status);
> 		return;
> 	}
> 
>-- 
>2.34.1
>
>
>From 60bfd44b05bc116081d53ebd15cefa95d01fc15b Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Wed, 19 Jul 2023 21:02:23 +0200
>Subject: [PATCH 68/69] libcli/auth: let netlogon_creds_copy() copy all scalar
> elements
>
>This version is good for now, as we want it to be backportable.
>For master we'll add a ndr_deepcopy_struct() helper in order
>to avoid future problems.
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 8edbdd65ef78e3f26357d0254b58db3120a32880)
>---
> libcli/auth/credentials.c | 9 +--------
> 1 file changed, 1 insertion(+), 8 deletions(-)
>
>diff --git a/libcli/auth/credentials.c b/libcli/auth/credentials.c
>index 2d2da080efe3..12f4b1fbb8ce 100644
>--- a/libcli/auth/credentials.c
>+++ b/libcli/auth/credentials.c
>@@ -1407,9 +1407,7 @@ struct netlogon_creds_CredentialState *netlogon_creds_copy(
> 		return NULL;
> 	}
> 
>-	creds->sequence			= creds_in->sequence;
>-	creds->negotiate_flags		= creds_in->negotiate_flags;
>-	creds->secure_channel_type	= creds_in->secure_channel_type;
>+	*creds = *creds_in;
> 
> 	creds->computer_name = talloc_strdup(creds, creds_in->computer_name);
> 	if (!creds->computer_name) {
>@@ -1432,10 +1430,5 @@ struct netlogon_creds_CredentialState *netlogon_creds_copy(
> 		*creds->ex = *creds_in->ex;
> 	}
> 
>-	memcpy(creds->session_key, creds_in->session_key, sizeof(creds->session_key));
>-	memcpy(creds->seed.data, creds_in->seed.data, sizeof(creds->seed.data));
>-	memcpy(creds->client.data, creds_in->client.data, sizeof(creds->client.data));
>-	memcpy(creds->server.data, creds_in->server.data, sizeof(creds->server.data));
>-
> 	return creds;
> }
>-- 
>2.34.1
>
>
>From d6701123880031fc705388105e95d87f728513a6 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Tue, 29 Oct 2024 13:42:06 +0100
>Subject: [PATCH 69/69] libcli/auth: split out
> netlogon_creds_cli_check_transport()
>
>This will make it easier to implement netr_ServerAuthenticateKerberos()
>later...
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=15425
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
>(cherry picked from commit 7a5ad9f64a905f5744430c6e0796c646baf9432e)
>---
> libcli/auth/netlogon_creds_cli.c | 138 +++++++++++++++----------------
> 1 file changed, 65 insertions(+), 73 deletions(-)
>
>diff --git a/libcli/auth/netlogon_creds_cli.c b/libcli/auth/netlogon_creds_cli.c
>index eabd2183f8c3..19c4a104937f 100644
>--- a/libcli/auth/netlogon_creds_cli.c
>+++ b/libcli/auth/netlogon_creds_cli.c
>@@ -1216,6 +1216,49 @@ NTSTATUS netlogon_creds_cli_lck(
> 	return status;
> }
> 
>+static NTSTATUS netlogon_creds_cli_check_transport(
>+		enum dcerpc_AuthType auth_type,
>+		enum dcerpc_AuthLevel auth_level,
>+		const struct netlogon_creds_CredentialState *creds,
>+		enum dcerpc_AuthLevel min_auth_level)
>+{
>+	if (auth_level < min_auth_level) {
>+		return NT_STATUS_INVALID_PARAMETER_MIX;
>+	}
>+
>+	if (creds == NULL) {
>+		return NT_STATUS_INVALID_PARAMETER_MIX;
>+	}
>+
>+	if (auth_type == DCERPC_AUTH_TYPE_SCHANNEL) {
>+		switch (auth_level) {
>+		case DCERPC_AUTH_LEVEL_INTEGRITY:
>+		case DCERPC_AUTH_LEVEL_PRIVACY:
>+			return NT_STATUS_OK;
>+		default:
>+			break;
>+		}
>+
>+		return NT_STATUS_INVALID_PARAMETER_MIX;
>+	}
>+
>+	if (creds->negotiate_flags & NETLOGON_NEG_AUTHENTICATED_RPC) {
>+		/*
>+		 * if DCERPC_AUTH_TYPE_SCHANNEL is supported
>+		 * it should be used, which means
>+		 * we had a chance to verify no downgrade
>+		 * happened.
>+		 *
>+		 * This relies on netlogon_creds_cli_check*
>+		 * being called before, as first request after
>+		 * the DCERPC bind.
>+		 */
>+		return NT_STATUS_INVALID_PARAMETER_MIX;
>+	}
>+
>+	return NT_STATUS_OK;
>+}
>+
> struct netlogon_creds_cli_auth_state {
> 	struct tevent_context *ev;
> 	struct netlogon_creds_cli_context *context;
>@@ -1707,17 +1750,11 @@ struct tevent_req *netlogon_creds_cli_check_send(TALLOC_CTX *mem_ctx,
> 					&state->auth_type,
> 					&state->auth_level);
> 
>-	if (state->auth_type != DCERPC_AUTH_TYPE_SCHANNEL) {
>-		tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
>-		return tevent_req_post(req, ev);
>-	}
>-
>-	switch (state->auth_level) {
>-	case DCERPC_AUTH_LEVEL_INTEGRITY:
>-	case DCERPC_AUTH_LEVEL_PRIVACY:
>-		break;
>-	default:
>-		tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
>+	status = netlogon_creds_cli_check_transport(state->auth_type,
>+						    state->auth_level,
>+						    state->creds,
>+						    DCERPC_AUTH_LEVEL_INTEGRITY);
>+	if (tevent_req_nterror(req, status)) {
> 		return tevent_req_post(req, ev);
> 	}
> 
>@@ -2305,32 +2342,12 @@ static void netlogon_creds_cli_ServerPasswordSet_locked(struct tevent_req *subre
> 		return;
> 	}
> 
>-	if (state->auth_type == DCERPC_AUTH_TYPE_SCHANNEL) {
>-		switch (state->auth_level) {
>-		case DCERPC_AUTH_LEVEL_INTEGRITY:
>-		case DCERPC_AUTH_LEVEL_PRIVACY:
>-			break;
>-		default:
>-			tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
>-			return;
>-		}
>-	} else {
>-		uint32_t tmp = state->creds->negotiate_flags;
>-
>-		if (tmp & NETLOGON_NEG_AUTHENTICATED_RPC) {
>-			/*
>-			 * if DCERPC_AUTH_TYPE_SCHANNEL is supported
>-			 * it should be used, which means
>-			 * we had a chance to verify no downgrade
>-			 * happened.
>-			 *
>-			 * This relies on netlogon_creds_cli_check*
>-			 * being called before, as first request after
>-			 * the DCERPC bind.
>-			 */
>-			tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
>-			return;
>-		}
>+	status = netlogon_creds_cli_check_transport(state->auth_type,
>+						    state->auth_level,
>+						    state->creds,
>+						    DCERPC_AUTH_LEVEL_NONE);
>+	if (tevent_req_nterror(req, status)) {
>+		return;
> 	}
> 
> 	state->old_timeout = dcerpc_binding_handle_set_timeout(
>@@ -3196,32 +3213,12 @@ static void netlogon_creds_cli_DsrUpdateReadOnlyServerDnsRecords_locked(struct t
> 		return;
> 	}
> 
>-	if (state->auth_type == DCERPC_AUTH_TYPE_SCHANNEL) {
>-		switch (state->auth_level) {
>-		case DCERPC_AUTH_LEVEL_INTEGRITY:
>-		case DCERPC_AUTH_LEVEL_PRIVACY:
>-			break;
>-		default:
>-			tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
>-			return;
>-		}
>-	} else {
>-		uint32_t tmp = state->creds->negotiate_flags;
>-
>-		if (tmp & NETLOGON_NEG_AUTHENTICATED_RPC) {
>-			/*
>-			 * if DCERPC_AUTH_TYPE_SCHANNEL is supported
>-			 * it should be used, which means
>-			 * we had a chance to verify no downgrade
>-			 * happened.
>-			 *
>-			 * This relies on netlogon_creds_cli_check*
>-			 * being called before, as first request after
>-			 * the DCERPC bind.
>-			 */
>-			tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
>-			return;
>-		}
>+	status = netlogon_creds_cli_check_transport(state->auth_type,
>+						    state->auth_level,
>+						    state->creds,
>+						    DCERPC_AUTH_LEVEL_NONE);
>+	if (tevent_req_nterror(req, status)) {
>+		return;
> 	}
> 
> 	/*
>@@ -3465,16 +3462,11 @@ static void netlogon_creds_cli_ServerGetTrustInfo_locked(struct tevent_req *subr
> 		return;
> 	}
> 
>-	if (state->auth_type == DCERPC_AUTH_TYPE_SCHANNEL) {
>-		switch (state->auth_level) {
>-		case DCERPC_AUTH_LEVEL_PRIVACY:
>-			break;
>-		default:
>-			tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
>-			return;
>-		}
>-	} else {
>-		tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
>+	status = netlogon_creds_cli_check_transport(state->auth_type,
>+						    state->auth_level,
>+						    state->creds,
>+						    DCERPC_AUTH_LEVEL_PRIVACY);
>+	if (tevent_req_nterror(req, status)) {
> 		return;
> 	}
> 
>-- 
>2.34.1
>

Flags:

dbagnall: review-

Actions: View

Attachments on bug 15425: 17989 | 18491 | 18492 | 18493 | 18494 | 18495