[SCM] Samba Shared Repository - branch v3-5-test updated

Karolin Seeger kseeger at samba.org
Tue Sep 21 02:27:25 MDT 2010


The branch, v3-5-test has been updated
       via  2ee2ea9 s3:smbd: Align change notify replies on 4-byte boundary
      from  f7e7fa5 libwbclient: Fix a fd-leak at dlclose-time

http://gitweb.samba.org/?p=samba.git;a=shortlog;h=v3-5-test


- Log -----------------------------------------------------------------
commit 2ee2ea9fa5b839a4395895872f1ed149226dd06f
Author: Chere Zhou <chere.zhou at isilon.com>
Date:   Mon Jul 5 17:18:35 2010 -0700

    s3:smbd: Align change notify replies on 4-byte boundary
    
    MS-CIFS section 2.2.7.4.2 states this is mandatory.  WinXP clients
    don't seem to care, but a Win7 client will send an immediate Close()
    to the directory handle when receiving an incorrectly aligned
    change notify response.
    
    Fix bug #7662 (Change notify replies must be aligned on 4-byte boundary for
    Win7.)

-----------------------------------------------------------------------

Summary of changes:
 source3/smbd/notify.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)


Changeset truncated at 500 lines:

diff --git a/source3/smbd/notify.c b/source3/smbd/notify.c
index 0c75769..a53f3fb 100644
--- a/source3/smbd/notify.c
+++ b/source3/smbd/notify.c
@@ -76,6 +76,7 @@ static bool notify_marshall_changes(int num_changes,
 	for (i=0; i<num_changes; i++) {
 		struct notify_change *c;
 		size_t namelen;
+		int    rem = 0;
 		uint32 u32_tmp;	/* Temp arg to prs_uint32 to avoid
 				 * signed/unsigned issues */
 
@@ -101,6 +102,11 @@ static bool notify_marshall_changes(int num_changes,
 		 */
 
 		u32_tmp = (i == num_changes-1) ? 0 : namelen + 12;
+
+		/* Align on 4-byte boundary according to MS-CIFS 2.2.7.4.2 */
+		if ((rem = u32_tmp % 4 ) != 0)
+			u32_tmp += 4 - rem;
+
 		if (!prs_uint32("offset", ps, 1, &u32_tmp)) goto fail;
 
 		u32_tmp = c->action;
@@ -116,6 +122,10 @@ static bool notify_marshall_changes(int num_changes,
 		 */
 		prs_set_offset(ps, prs_offset(ps)-2);
 
+		if (rem != 0) {
+			if (!prs_align_custom(ps, 4)) goto fail;
+		}
+
 		TALLOC_FREE(uni_name.buffer);
 
 		if (prs_offset(ps) > max_offset) {


-- 
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