Attachment 7607 Details for Bug 8953 – Updated fix for 3.6.next.

[patch] Updated fix for 3.6.next.

bug-8953.patch (text/plain), 3.72 KB, created by Jeremy Allison on 2012-05-29 23:39:58 UTC

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Creator: Jeremy Allison

Created: 2012-05-29 23:39:58 UTC

Size: 3.72 KB

patch

obsolete

>From cbaa17caae599993bff0faa081176a4972fe9217 Mon Sep 17 00:00:00 2001
>From: Jeremy Allison <jra@samba.org>
>Date: Tue, 29 May 2012 16:37:35 -0700
>Subject: [PATCH 1/2] Fix bug #8953 - winbind can hang as nbt_getdc() has no
> timeout.
>
>Add a timeout_in_seconds parameter to nbt_getdc() to make it fail
>after that time with NT_STATUS_IO_TIMEOUT.
>---
> source3/libsmb/clidgram.c      |    5 +++++
> source3/libsmb/clidgram.h      |    1 +
> source3/libsmb/dsgetdcname.c   |    2 +-
> source3/winbindd/winbindd_cm.c |    2 +-
> 4 files changed, 8 insertions(+), 2 deletions(-)
>
>diff --git a/source3/libsmb/clidgram.c b/source3/libsmb/clidgram.c
>index d48811b..c7ff6ca 100644
>--- a/source3/libsmb/clidgram.c
>+++ b/source3/libsmb/clidgram.c
>@@ -436,6 +436,7 @@ NTSTATUS nbt_getdc_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
> }
> 
> NTSTATUS nbt_getdc(struct messaging_context *msg_ctx,
>+		   uint32_t timeout_in_seconds,
> 		   const struct sockaddr_storage *dc_addr,
> 		   const char *domain_name,
> 		   const struct dom_sid *sid,
>@@ -459,6 +460,10 @@ NTSTATUS nbt_getdc(struct messaging_context *msg_ctx,
> 	if (req == NULL) {
> 		goto fail;
> 	}
>+	if (!tevent_req_set_endtime(req, ev,
>+			timeval_current_ofs(timeout_in_seconds, 0))) {
>+		goto fail;
>+	}
> 	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
> 		goto fail;
> 	}
>diff --git a/source3/libsmb/clidgram.h b/source3/libsmb/clidgram.h
>index a449724..6cd6222 100644
>--- a/source3/libsmb/clidgram.h
>+++ b/source3/libsmb/clidgram.h
>@@ -37,6 +37,7 @@ NTSTATUS nbt_getdc_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
> 			uint32_t *nt_version, const char **dc_name,
> 			struct netlogon_samlogon_response **samlogon_response);
> NTSTATUS nbt_getdc(struct messaging_context *msg_ctx,
>+		   uint32_t timeout_in_seconds,
> 		   const struct sockaddr_storage *dc_addr,
> 		   const char *domain_name,
> 		   const struct dom_sid *sid,
>diff --git a/source3/libsmb/dsgetdcname.c b/source3/libsmb/dsgetdcname.c
>index e062818..442f8ed 100644
>--- a/source3/libsmb/dsgetdcname.c
>+++ b/source3/libsmb/dsgetdcname.c
>@@ -950,7 +950,7 @@ static NTSTATUS process_dc_netbios(TALLOC_CTX *mem_ctx,
> 			return NT_STATUS_UNSUCCESSFUL;
> 		}
> 
>-		status = nbt_getdc(msg_ctx, &dclist[i].ss, domain_name,
>+		status = nbt_getdc(msg_ctx, 10, &dclist[i].ss, domain_name,
> 				   NULL, nt_version,
> 				   mem_ctx, &nt_version, &dc_name, &r);
> 		if (NT_STATUS_IS_OK(status)) {
>diff --git a/source3/winbindd/winbindd_cm.c b/source3/winbindd/winbindd_cm.c
>index 062714b..9b04aba 100644
>--- a/source3/winbindd/winbindd_cm.c
>+++ b/source3/winbindd/winbindd_cm.c
>@@ -1188,7 +1188,7 @@ static bool dcip_to_name(TALLOC_CTX *mem_ctx,
> 	}
> #endif
> 
>-	status = nbt_getdc(winbind_messaging_context(), pss, domain->name,
>+	status = nbt_getdc(winbind_messaging_context(), 10, pss, domain->name,
> 			   &domain->sid, nt_version, mem_ctx, &nt_version,
> 			   &dc_name, NULL);
> 	if (NT_STATUS_IS_OK(status)) {
>-- 
>1.7.7.3
>
>
>From b078c4730a1b110f1a086cc6609a5071e36e4410 Mon Sep 17 00:00:00 2001
>From: Herb Lewis <hlewis@panasas.com>
>Date: Tue, 29 May 2012 16:38:53 -0700
>Subject: [PATCH 2/2] Second part of fix for bug 8953 - winbind can hang as
> nbt_getdc() has no timeout.
>
>If we're running with SEC_ADS and we don't get a cldap response from
>the server when querying its name, don't fall back to NetBIOS requests
>as they're unlikely to succeed.
>
>Signed-off-by: Jeremy Allison <jra@samba.org>
>---
> source3/winbindd/winbindd_cm.c |    1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
>diff --git a/source3/winbindd/winbindd_cm.c b/source3/winbindd/winbindd_cm.c
>index 9b04aba..7d7244a 100644
>--- a/source3/winbindd/winbindd_cm.c
>+++ b/source3/winbindd/winbindd_cm.c
>@@ -1185,6 +1185,7 @@ static bool dcip_to_name(TALLOC_CTX *mem_ctx,
> 		}
> 
> 		ads_destroy( &ads );
>+		return false;
> 	}
> #endif
> 
>-- 
>1.7.7.3
>

Flags:

metze: review+
herb: review+

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