Attachment 14479 Details for Bug 13539 – Patches for v4-9-test

[patch] Patches for v4-9-test

tmp49.diff.txt (text/plain), 21.64 KB, created by Stefan Metzmacher on 2018-09-05 07:48:35 UTC

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Creator: Stefan Metzmacher

Created: 2018-09-05 07:48:35 UTC

Size: 21.64 KB

patch

obsolete

>From 3333622e50c87172b08ff1e1c95332eccf1912e6 Mon Sep 17 00:00:00 2001
>From: Alexander Bokovoy <ab@samba.org>
>Date: Fri, 16 Feb 2018 18:15:28 +0200
>Subject: [PATCH 1/5] s4:selftest: test kinit with the interdomain trust user
> account
>
>To test it, add a blackbox test that ensures we pass a keytab-based
>authentication with the trust user account for a trusted domain.
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=13539
>
>Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
>
>Signed-off-by: Alexander Bokovoy <ab@samba.org>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Andrew Bartlett <abartlet@samba.org>
>(cherry picked from commit 7df505298f71432d5adbcffccde8f97c117a57a6)
>---
> source4/selftest/tests.py                     |  1 +
> testprogs/blackbox/test_trust_user_account.sh | 44 +++++++++++++++++++
> 2 files changed, 45 insertions(+)
> create mode 100755 testprogs/blackbox/test_trust_user_account.sh
>
>diff --git a/source4/selftest/tests.py b/source4/selftest/tests.py
>index 09cd55b930a1..3ccf2130c5db 100755
>--- a/source4/selftest/tests.py
>+++ b/source4/selftest/tests.py
>@@ -431,6 +431,7 @@ plantestsuite("samba4.blackbox.trust_token", "fl2008r2dc", [os.path.join(bbdir,
> plantestsuite("samba4.blackbox.trust_token", "fl2003dc", [os.path.join(bbdir, "test_trust_token.sh"), '$SERVER', '$USERNAME', '$PASSWORD', '$REALM', '$DOMAIN', '$DOMSID', '$TRUST_USERNAME', '$TRUST_PASSWORD', '$TRUST_REALM', '$TRUST_DOMAIN', '$TRUST_DOMSID', 'external'])
> plantestsuite("samba4.blackbox.ktpass(ad_dc_ntvfs)", "ad_dc_ntvfs", [os.path.join(bbdir, "test_ktpass.sh"), '$PREFIX/ad_dc_ntvfs'])
> plantestsuite("samba4.blackbox.password_settings(ad_dc_ntvfs:local)", "ad_dc_ntvfs:local", [os.path.join(bbdir, "test_password_settings.sh"), '$SERVER', '$USERNAME', '$PASSWORD', '$REALM', '$DOMAIN', "$PREFIX/ad_dc_ntvfs"])
>+plantestsuite("samba4.blackbox.trust_user_account", "fl2008r2dc:local", [os.path.join(bbdir, "test_trust_user_account.sh"), '$PREFIX', '$REALM', '$DOMAIN', '$TRUST_REALM', '$TRUST_DOMAIN'])
> plantestsuite("samba4.blackbox.cifsdd(ad_dc_ntvfs)", "ad_dc_ntvfs", [os.path.join(samba4srcdir, "client/tests/test_cifsdd.sh"), '$SERVER', '$USERNAME', '$PASSWORD', "$DOMAIN"])
> plantestsuite("samba4.blackbox.nmblookup(ad_dc_ntvfs)", "ad_dc_ntvfs", [os.path.join(samba4srcdir, "utils/tests/test_nmblookup.sh"), '$NETBIOSNAME', '$NETBIOSALIAS', '$SERVER', '$SERVER_IP', nmblookup4])
> plantestsuite("samba4.blackbox.locktest(ad_dc_ntvfs)", "ad_dc_ntvfs", [os.path.join(samba4srcdir, "torture/tests/test_locktest.sh"), '$SERVER', '$USERNAME', '$PASSWORD', '$DOMAIN', '$PREFIX'])
>diff --git a/testprogs/blackbox/test_trust_user_account.sh b/testprogs/blackbox/test_trust_user_account.sh
>new file mode 100755
>index 000000000000..9fbe25e16a3c
>--- /dev/null
>+++ b/testprogs/blackbox/test_trust_user_account.sh
>@@ -0,0 +1,44 @@
>+#!/bin/sh
>+
>+if [ $# -lt 1 ]; then
>+cat <<EOF
>+Usage: test_trust_user_account.sh PREFIX OUR_REALM OUR_FLAT REMOTE_REALM REMOTE_FLAT
>+EOF
>+exit 1;
>+fi
>+
>+PREFIX="$1"
>+OUR_REALM="$2"
>+OUR_FLAT="$3"
>+REMOTE_REALM="$4"
>+REMOTE_FLAT="$5"
>+shift 5
>+
>+. `dirname $0`/subunit.sh
>+
>+
>+samba_tool="$BINDIR/samba-tool"
>+samba4bindir="$BINDIR"
>+samba4srcdir="$SRCDIR/source4"
>+samba4kinit="kinit -k"
>+if test -x $BINDIR/samba4kinit; then
>+	samba4kinit="$BINDIR/samba4kinit --use-keytab"
>+fi
>+
>+KEYTAB="$PREFIX/tmptda.keytab"
>+
>+KRB5_TRACE=/dev/stderr
>+export KRB5_TRACE
>+
>+testit "retrieve keytab for TDA of $REMOTE_REALM" $samba_tool domain exportkeytab $KEYTAB $CONFIGURATION --principal "$REMOTE_FLAT\$@$OUR_REALM" || failed=`expr $failed + 1`
>+
>+KRB5CCNAME="$PREFIX/tmptda.ccache"
>+export KRB5CCNAME
>+
>+rm -f $KRB5CCNAME
>+
>+testit "kinit with keytab for TDA of $REMOTE_REALM" $samba4kinit -t $KEYTAB "$REMOTE_FLAT\$@$OUR_REALM" || failed=`expr $failed + 1`
>+
>+rm -f $KRB5CCNAME $KEYTAB
>+
>+exit $failed
>-- 
>2.17.1
>
>
>From 56c46a5b0320ed0e6e005c3b8cdc4d8ac4338953 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Tue, 4 Sep 2018 10:16:59 +0200
>Subject: [PATCH 2/5] samba-tool: add virtualKerberosSalt attribute to 'user
> getpassword/syncpasswords'
>
>This might be useful for someone, but at least it's very useful for
>tests.
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=13539
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Andrew Bartlett <abartlet@samba.org>
>(cherry picked from commit 39c281a23673691bab621de1a632d64df2c1c102)
>---
> python/samba/netcmd/user.py | 24 ++++++++++++++++++++++++
> 1 file changed, 24 insertions(+)
>
>diff --git a/python/samba/netcmd/user.py b/python/samba/netcmd/user.py
>index f211b5158ced..cc43c08a8249 100644
>--- a/python/samba/netcmd/user.py
>+++ b/python/samba/netcmd/user.py
>@@ -199,6 +199,9 @@ for (alg, attr) in [("5", "virtualCryptSHA256"), ("6", "virtualCryptSHA512")]:
> for x in range(1, 30):
>     virtual_attributes["virtualWDigest%02d" % x] = {}
> 
>+# Add Kerberos virtual attributes
>+virtual_attributes["virtualKerberosSalt"] = {}
>+
> virtual_attributes_help  = "The attributes to display (comma separated). "
> virtual_attributes_help += "Possible supported virtual attributes: %s" % ", ".join(sorted(virtual_attributes.keys()))
> if len(disabled_virtual_attributes) != 0:
>@@ -1220,6 +1223,16 @@ class GetPasswordCommand(Command):
>             # first matching scheme
>             return (None, scheme_match)
> 
>+        def get_kerberos_ctr():
>+            primary_krb5 = get_package("Primary:Kerberos-Newer-Keys")
>+            if primary_krb5 is None:
>+                primary_krb5 = get_package("Primary:Kerberos")
>+            if primary_krb5 is None:
>+                return (0, None)
>+            krb5_blob = ndr_unpack(drsblobs.package_PrimaryKerberosBlob,
>+                                   primary_krb5)
>+            return (krb5_blob.version, krb5_blob.ctr)
>+
>         # We use sort here in order to have a predictable processing order
>         for a in sorted(virtual_attributes.keys()):
>             if not a.lower() in lower_attrs:
>@@ -1271,6 +1284,11 @@ class GetPasswordCommand(Command):
>                 v = get_package("Primary:SambaGPG", min_idx=-1)
>                 if v is None:
>                     continue
>+            elif a == "virtualKerberosSalt":
>+                (krb5_v, krb5_ctr) = get_kerberos_ctr()
>+                if krb5_v not in [3, 4]:
>+                    continue
>+                v = krb5_ctr.salt.string
>             elif a.startswith("virtualWDigest"):
>                 primary_wdigest = get_package("Primary:WDigest")
>                 if primary_wdigest is None:
>@@ -1387,6 +1405,9 @@ for which virtual attributes are supported in your environment):
>                         https://msdn.microsoft.com/en-us/library/cc245680.aspx
>                           is incorrect
> 
>+   virtualKerberosSalt:   This results the salt string that is used to compute
>+                          Kerberos keys from a UTF-8 cleartext password.
>+
>    virtualSambaGPG:       The raw cleartext as stored in the
>                           'Primary:SambaGPG' buffer inside of the
>                           supplementalCredentials attribute.
>@@ -1554,6 +1575,9 @@ for supported virtual attributes in your environment):
>                         https://msdn.microsoft.com/en-us/library/cc245680.aspx
>                           is incorrect.
> 
>+   virtualKerberosSalt:   This results the salt string that is used to compute
>+                          Kerberos keys from a UTF-8 cleartext password.
>+
>    virtualSambaGPG:       The raw cleartext as stored in the
>                           'Primary:SambaGPG' buffer inside of the
>                           supplementalCredentials attribute.
>-- 
>2.17.1
>
>
>From 416a6634354192c4a9acb9852805abd9d9a60275 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Tue, 4 Sep 2018 10:38:44 +0200
>Subject: [PATCH 3/5] testprogs/blackbox: add testit[_expect_failure]_grep() to
> subunit.sh
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=13539
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Andrew Bartlett <abartlet@samba.org>
>(cherry picked from commit 8526feb100e59bc5a15ceb940e6cecce0de59247)
>---
> testprogs/blackbox/subunit.sh | 50 +++++++++++++++++++++++++++++++++++
> 1 file changed, 50 insertions(+)
>
>diff --git a/testprogs/blackbox/subunit.sh b/testprogs/blackbox/subunit.sh
>index aca53f72536d..bcc5bd6a928b 100755
>--- a/testprogs/blackbox/subunit.sh
>+++ b/testprogs/blackbox/subunit.sh
>@@ -90,6 +90,31 @@ testit () {
> 	return $status
> }
> 
>+# This returns 0 if the command gave success and the grep value was found
>+# all other cases return != 0
>+testit_grep () {
>+	name="$1"
>+	shift
>+	grep="$1"
>+	shift
>+	cmdline="$@"
>+	subunit_start_test "$name"
>+	output=`$cmdline 2>&1`
>+	status=$?
>+	if [ x$status != x0 ]; then
>+		printf '%s' "$output" | subunit_fail_test "$name"
>+		return $status
>+	fi
>+	printf '%s' "$output" | grep -q "$grep"
>+	gstatus=$?
>+	if [ x$gstatus = x0 ]; then
>+		subunit_pass_test "$name"
>+	else
>+		printf 'GREP: "%s" not found in output:\n%s' "$grep" "$output" | subunit_fail_test "$name"
>+	fi
>+	return $status
>+}
>+
> testit_expect_failure () {
> 	name="$1"
> 	shift
>@@ -105,6 +130,31 @@ testit_expect_failure () {
> 	return $status
> }
> 
>+# This returns 0 if the command gave a failure and the grep value was found
>+# all other cases return != 0
>+testit_expect_failure_grep () {
>+	name="$1"
>+	shift
>+	grep="$1"
>+	shift
>+	cmdline="$@"
>+	subunit_start_test "$name"
>+	output=`$cmdline 2>&1`
>+	status=$?
>+	if [ x$status = x0 ]; then
>+		printf '%s' "$output" | subunit_fail_test "$name"
>+		return 1
>+	fi
>+	printf '%s' "$output" | grep -q "$grep"
>+	gstatus=$?
>+	if [ x$gstatus = x0 ]; then
>+		subunit_pass_test "$name"
>+	else
>+		printf 'GREP: "%s" not found in output:\n%s' "$grep" "$output" | subunit_fail_test "$name"
>+	fi
>+	return $status
>+}
>+
> testok () {
> 	name=`basename $1`
> 	failed=$2
>-- 
>2.17.1
>
>
>From d04245efa341211bb7bbb283bc8a38cf4a44e22f Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Tue, 4 Sep 2018 10:53:52 +0200
>Subject: [PATCH 4/5] testprogs/blackbox: let test_trust_user_account.sh check
> the correct kerberos salt
>
>This demonstrates the bug we currently have.
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=13539
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Andrew Bartlett <abartlet@samba.org>
>(cherry picked from commit 1b31fa62567ec549e32c9177b322cfbfb3b6ec1a)
>---
> selftest/knownfail.d/trust_user_account       |  1 +
> testprogs/blackbox/test_trust_user_account.sh | 14 ++++++++++++++
> 2 files changed, 15 insertions(+)
> create mode 100644 selftest/knownfail.d/trust_user_account
>
>diff --git a/selftest/knownfail.d/trust_user_account b/selftest/knownfail.d/trust_user_account
>new file mode 100644
>index 000000000000..1de5052b11d6
>--- /dev/null
>+++ b/selftest/knownfail.d/trust_user_account
>@@ -0,0 +1 @@
>+^samba4.blackbox.trust_user_account.get.virtualKerberosSalt.for.TDA
>diff --git a/testprogs/blackbox/test_trust_user_account.sh b/testprogs/blackbox/test_trust_user_account.sh
>index 9fbe25e16a3c..b0dc8a9f7736 100755
>--- a/testprogs/blackbox/test_trust_user_account.sh
>+++ b/testprogs/blackbox/test_trust_user_account.sh
>@@ -37,6 +37,20 @@ export KRB5CCNAME
> 
> rm -f $KRB5CCNAME
> 
>+EXPECTED_SALT="${OUR_REALM}krbtgt${REMOTE_FLAT}"
>+#
>+# Note the \$ is for the end of line in grep
>+#
>+# There must be no trailing '$' in the SALT string itself,
>+# it's removed from the sAMAccountName value (which includes the trailing '$')
>+# before construting the salt!
>+#
>+# Otherwise this would be:
>+# "^virtualKerberosSalt: ${EXPECTED_SALT}\\\$\$"
>+#
>+EXPECTED_GREP="^virtualKerberosSalt: ${EXPECTED_SALT}\$"
>+testit_grep "get virtualKerberosSalt for TDA of $REMOTE_FLAT\$" "$EXPECTED_GREP" $samba_tool user getpassword "$REMOTE_FLAT\$" $CONFIGURATION --attributes=virtualKerberosSalt || failed=`expr $failed + 1`
>+
> testit "kinit with keytab for TDA of $REMOTE_REALM" $samba4kinit -t $KEYTAB "$REMOTE_FLAT\$@$OUR_REALM" || failed=`expr $failed + 1`
> 
> rm -f $KRB5CCNAME $KEYTAB
>-- 
>2.17.1
>
>
>From 853fee491735388e45e243404234b565c68594c3 Mon Sep 17 00:00:00 2001
>From: Alexander Bokovoy <ab@samba.org>
>Date: Fri, 16 Feb 2018 18:15:28 +0200
>Subject: [PATCH 5/5] krb5-samba: interdomain trust uses different salt
> principal
>
>Salt principal for the interdomain trust is krbtgt/DOMAIN@REALM where
>DOMAIN is the sAMAccountName without the dollar sign ($)
>
>The salt principal for the BLA$ user object was generated wrong.
>
>dn: CN=bla.base,CN=System,DC=w4edom-l4,DC=base
>securityIdentifier: S-1-5-21-4053568372-2049667917-3384589010
>trustDirection: 3
>trustPartner: bla.base
>trustPosixOffset: -2147483648
>trustType: 2
>trustAttributes: 8
>flatName: BLA
>
>dn: CN=BLA$,CN=Users,DC=w4edom-l4,DC=base
>userAccountControl: 2080
>primaryGroupID: 513
>objectSid: S-1-5-21-278041429-3399921908-1452754838-1597
>accountExpires: 9223372036854775807
>sAMAccountName: BLA$
>sAMAccountType: 805306370
>pwdLastSet: 131485652467995000
>
>The salt stored by Windows in the package_PrimaryKerberosBlob
>(within supplementalCredentials) seems to be
>'W4EDOM-L4.BASEkrbtgtBLA' for the above trust
>and Samba stores 'W4EDOM-L4.BASEBLA$'.
>
>While the salt used when building the keys from
>trustAuthOutgoing/trustAuthIncoming is
>'W4EDOM-L4.BASEkrbtgtBLA.BASE', which we handle correct.
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=13539
>
>Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
>
>Signed-off-by: Alexander Bokovoy <ab@samba.org>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Andrew Bartlett <abartlet@samba.org>
>
>Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
>Autobuild-Date(master): Wed Sep  5 03:57:22 CEST 2018 on sn-devel-144
>
>(cherry picked from commit f3e349bebc443133fdbe4e14b148ca8db8237060)
>---
> auth/credentials/credentials_krb5.c           | 16 +++--
> lib/krb5_wrap/krb5_samba.c                    | 61 ++++++++++++++-----
> lib/krb5_wrap/krb5_samba.h                    |  2 +-
> selftest/knownfail.d/trust_user_account       |  1 -
> source3/passdb/machine_account_secrets.c      |  3 +-
> .../dsdb/samdb/ldb_modules/password_hash.c    |  6 +-
> 6 files changed, 63 insertions(+), 26 deletions(-)
> delete mode 100644 selftest/knownfail.d/trust_user_account
>
>diff --git a/auth/credentials/credentials_krb5.c b/auth/credentials/credentials_krb5.c
>index 9da1aa09250d..d36797bf0f37 100644
>--- a/auth/credentials/credentials_krb5.c
>+++ b/auth/credentials/credentials_krb5.c
>@@ -34,6 +34,7 @@
> #include "auth/kerberos/kerberos_util.h"
> #include "auth/kerberos/pac_utils.h"
> #include "param/param.h"
>+#include "../libds/common/flags.h"
> 
> #undef DBGC_CLASS
> #define DBGC_CLASS DBGC_AUTH
>@@ -974,7 +975,7 @@ _PUBLIC_ int cli_credentials_get_keytab(struct cli_credentials *cred,
> 	const char *upn = NULL;
> 	const char *realm = cli_credentials_get_realm(cred);
> 	char *salt_principal = NULL;
>-	bool is_computer = false;
>+	uint32_t uac_flags = 0;
> 
> 	if (cred->keytab_obtained >= (MAX(cred->principal_obtained, 
> 					  cred->username_obtained))) {
>@@ -999,9 +1000,15 @@ _PUBLIC_ int cli_credentials_get_keytab(struct cli_credentials *cred,
> 
> 	switch (cred->secure_channel_type) {
> 	case SEC_CHAN_WKSTA:
>-	case SEC_CHAN_BDC:
> 	case SEC_CHAN_RODC:
>-		is_computer = true;
>+		uac_flags = UF_WORKSTATION_TRUST_ACCOUNT;
>+		break;
>+	case SEC_CHAN_BDC:
>+		uac_flags = UF_SERVER_TRUST_ACCOUNT;
>+		break;
>+	case SEC_CHAN_DOMAIN:
>+	case SEC_CHAN_DNS_DOMAIN:
>+		uac_flags = UF_INTERDOMAIN_TRUST_ACCOUNT;
> 		break;
> 	default:
> 		upn = cli_credentials_get_principal(cred, mem_ctx);
>@@ -1009,13 +1016,14 @@ _PUBLIC_ int cli_credentials_get_keytab(struct cli_credentials *cred,
> 			TALLOC_FREE(mem_ctx);
> 			return ENOMEM;
> 		}
>+		uac_flags = UF_NORMAL_ACCOUNT;
> 		break;
> 	}
> 
> 	ret = smb_krb5_salt_principal(realm,
> 				      username, /* sAMAccountName */
> 				      upn, /* userPrincipalName */
>-				      is_computer,
>+				      uac_flags,
> 				      mem_ctx,
> 				      &salt_principal);
> 	if (ret) {
>diff --git a/lib/krb5_wrap/krb5_samba.c b/lib/krb5_wrap/krb5_samba.c
>index 7e90913beb0f..a6ff97640cae 100644
>--- a/lib/krb5_wrap/krb5_samba.c
>+++ b/lib/krb5_wrap/krb5_samba.c
>@@ -24,6 +24,7 @@
> #include "system/filesys.h"
> #include "krb5_samba.h"
> #include "lib/crypto/crypto.h"
>+#include "../libds/common/flags.h"
> 
> #ifdef HAVE_COM_ERR_H
> #include <com_err.h>
>@@ -445,8 +446,7 @@ int smb_krb5_get_pw_salt(krb5_context context,
>  * @param[in]  userPrincipalName  The userPrincipalName attribute of the object
>  *                                or NULL is not available.
>  *
>- * @param[in]  is_computer        The indication of the object includes
>- *                                objectClass=computer.
>+ * @param[in]  uac_flags          UF_ACCOUNT_TYPE_MASKed userAccountControl field
>  *
>  * @param[in]  mem_ctx            The TALLOC_CTX to allocate _salt_principal.
>  *
>@@ -459,7 +459,7 @@ int smb_krb5_get_pw_salt(krb5_context context,
> int smb_krb5_salt_principal(const char *realm,
> 			    const char *sAMAccountName,
> 			    const char *userPrincipalName,
>-			    bool is_computer,
>+			    uint32_t uac_flags,
> 			    TALLOC_CTX *mem_ctx,
> 			    char **_salt_principal)
> {
>@@ -480,6 +480,23 @@ int smb_krb5_salt_principal(const char *realm,
> 		return EINVAL;
> 	}
> 
>+	if (uac_flags & ~UF_ACCOUNT_TYPE_MASK) {
>+		/*
>+		 * catch callers which still
>+		 * pass 'true'.
>+		 */
>+		TALLOC_FREE(frame);
>+		return EINVAL;
>+	}
>+	if (uac_flags == 0) {
>+		/*
>+		 * catch callers which still
>+		 * pass 'false'.
>+		 */
>+		TALLOC_FREE(frame);
>+		return EINVAL;
>+	}
>+
> 	upper_realm = strupper_talloc(frame, realm);
> 	if (upper_realm == NULL) {
> 		TALLOC_FREE(frame);
>@@ -493,7 +510,7 @@ int smb_krb5_salt_principal(const char *realm,
> 	/*
> 	 * Determine a salting principal
> 	 */
>-	if (is_computer) {
>+	if (uac_flags & UF_TRUST_ACCOUNT_MASK) {
> 		int computer_len = 0;
> 		char *tmp = NULL;
> 
>@@ -502,20 +519,32 @@ int smb_krb5_salt_principal(const char *realm,
> 			computer_len -= 1;
> 		}
> 
>-		tmp = talloc_asprintf(frame, "host/%*.*s.%s",
>-				      computer_len, computer_len,
>-				      sAMAccountName, realm);
>-		if (tmp == NULL) {
>-			TALLOC_FREE(frame);
>-			return ENOMEM;
>-		}
>+		if (uac_flags & UF_INTERDOMAIN_TRUST_ACCOUNT) {
>+			principal = talloc_asprintf(frame, "krbtgt/%*.*s",
>+						    computer_len, computer_len,
>+						    sAMAccountName);
>+			if (principal == NULL) {
>+				TALLOC_FREE(frame);
>+				return ENOMEM;
>+			}
>+		} else {
> 
>-		principal = strlower_talloc(frame, tmp);
>-		TALLOC_FREE(tmp);
>-		if (principal == NULL) {
>-			TALLOC_FREE(frame);
>-			return ENOMEM;
>+			tmp = talloc_asprintf(frame, "host/%*.*s.%s",
>+					      computer_len, computer_len,
>+					      sAMAccountName, realm);
>+			if (tmp == NULL) {
>+				TALLOC_FREE(frame);
>+				return ENOMEM;
>+			}
>+
>+			principal = strlower_talloc(frame, tmp);
>+			TALLOC_FREE(tmp);
>+			if (principal == NULL) {
>+				TALLOC_FREE(frame);
>+				return ENOMEM;
>+			}
> 		}
>+
> 		principal_len = strlen(principal);
> 
> 	} else if (userPrincipalName != NULL) {
>diff --git a/lib/krb5_wrap/krb5_samba.h b/lib/krb5_wrap/krb5_samba.h
>index 315d3c3492e6..8305c1f77af0 100644
>--- a/lib/krb5_wrap/krb5_samba.h
>+++ b/lib/krb5_wrap/krb5_samba.h
>@@ -353,7 +353,7 @@ int smb_krb5_get_pw_salt(krb5_context context,
> int smb_krb5_salt_principal(const char *realm,
> 			    const char *sAMAccountName,
> 			    const char *userPrincipalName,
>-			    bool is_computer,
>+			    uint32_t uac_flags,
> 			    TALLOC_CTX *mem_ctx,
> 			    char **_salt_principal);
> int smb_krb5_salt_principal2data(krb5_context context,
>diff --git a/selftest/knownfail.d/trust_user_account b/selftest/knownfail.d/trust_user_account
>deleted file mode 100644
>index 1de5052b11d6..000000000000
>--- a/selftest/knownfail.d/trust_user_account
>+++ /dev/null
>@@ -1 +0,0 @@
>-^samba4.blackbox.trust_user_account.get.virtualKerberosSalt.for.TDA
>diff --git a/source3/passdb/machine_account_secrets.c b/source3/passdb/machine_account_secrets.c
>index 94a7e21c8098..a96bf1c0b6ac 100644
>--- a/source3/passdb/machine_account_secrets.c
>+++ b/source3/passdb/machine_account_secrets.c
>@@ -36,6 +36,7 @@
> #include "lib/crypto/crypto.h"
> #include "lib/krb5_wrap/krb5_samba.h"
> #include "lib/util/time_basic.h"
>+#include "../libds/common/flags.h"
> 
> #undef DBGC_CLASS
> #define DBGC_CLASS DBGC_PASSDB
>@@ -1601,7 +1602,7 @@ NTSTATUS secrets_store_JoinCtx(const struct libnet_JoinCtx *r)
> 		ret = smb_krb5_salt_principal(info->domain_info.dns_domain.string,
> 					      info->account_name,
> 					      NULL /* userPrincipalName */,
>-					      true /* is_computer */,
>+					      UF_WORKSTATION_TRUST_ACCOUNT,
> 					      info, &p);
> 		if (ret != 0) {
> 			status = krb5_to_nt_status(ret);
>diff --git a/source4/dsdb/samdb/ldb_modules/password_hash.c b/source4/dsdb/samdb/ldb_modules/password_hash.c
>index 58ae64537eb6..5f5710330044 100644
>--- a/source4/dsdb/samdb/ldb_modules/password_hash.c
>+++ b/source4/dsdb/samdb/ldb_modules/password_hash.c
>@@ -130,7 +130,6 @@ struct setup_password_fields_io {
> 		NTTIME pwdLastSet;
> 		const char *sAMAccountName;
> 		const char *user_principal_name;
>-		bool is_computer;
> 		bool is_krbtgt;
> 		uint32_t restrictions;
> 		struct dom_sid *account_sid;
>@@ -678,15 +677,17 @@ static int setup_kerberos_keys(struct setup_password_fields_io *io)
> 	krb5_data salt;
> 	krb5_keyblock key;
> 	krb5_data cleartext_data;
>+	uint32_t uac_flags = 0;
> 
> 	ldb = ldb_module_get_ctx(io->ac->module);
> 	cleartext_data.data = (char *)io->n.cleartext_utf8->data;
> 	cleartext_data.length = io->n.cleartext_utf8->length;
> 
>+	uac_flags = io->u.userAccountControl & UF_ACCOUNT_TYPE_MASK;
> 	krb5_ret = smb_krb5_salt_principal(io->ac->status->domain_data.realm,
> 					   io->u.sAMAccountName,
> 					   io->u.user_principal_name,
>-					   io->u.is_computer,
>+					   uac_flags,
> 					   io->ac,
> 					   &salt_principal);
> 	if (krb5_ret) {
>@@ -3190,7 +3191,6 @@ static int setup_io(struct ph_context *ac,
> 								      "sAMAccountName", NULL);
> 	io->u.user_principal_name	= ldb_msg_find_attr_as_string(info_msg,
> 								      "userPrincipalName", NULL);
>-	io->u.is_computer		= ldb_msg_check_string_attribute(info_msg, "objectClass", "computer");
> 
> 	/* Ensure it has an objectSID too */
> 	io->u.account_sid = samdb_result_dom_sid(ac, info_msg, "objectSid");
>-- 
>2.17.1
>

Flags:

metze: review? (ab)
metze: review? (abartlet)
slow: review+

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Attachments on bug 13539: 14479 | 14480 | 14481 | 14482 | 14483