From: Jeremy Allison <jra@samba.org>
Date: Thu, 11 Feb 2021 19:49:24 +0000 (-0800)
Subject: s3: VFS: time_audit: Fix smb_time_audit_readlinkat() to cope with real directory... 
X-Git-Tag: tevent-0.11.0~1754
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=9077983ff9114bac227350b60c388bc19cf22bd0;p=thirdparty%2Fsamba.git

s3: VFS: time_audit: Fix smb_time_audit_readlinkat() to cope with real directory fsps.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
---

diff --git a/source3/modules/vfs_time_audit.c b/source3/modules/vfs_time_audit.c
index db9e9d3cf12..4e2aa404fa9 100644
--- a/source3/modules/vfs_time_audit.c
+++ b/source3/modules/vfs_time_audit.c
@@ -1469,10 +1469,19 @@ static int smb_time_audit_readlinkat(vfs_handle_struct *handle,
 				char *buf,
 				size_t bufsiz)
 {
+	struct smb_filename *full_fname = NULL;
 	int result;
 	struct timespec ts1,ts2;
 	double timediff;
 
+	full_fname = full_path_from_dirfsp_atname(talloc_tos(),
+						dirfsp,
+						smb_fname);
+	if (full_fname == NULL) {
+		errno = ENOMEM;
+		return -1;
+	}
+
 	clock_gettime_mono(&ts1);
 	result = SMB_VFS_NEXT_READLINKAT(handle,
 				dirfsp,
@@ -1484,9 +1493,10 @@ static int smb_time_audit_readlinkat(vfs_handle_struct *handle,
 
 	if (timediff > audit_timeout) {
 		smb_time_audit_log_fname("readlinkat", timediff,
-				smb_fname->base_name);
+				full_fname->base_name);
 	}
 
+	TALLOC_FREE(full_fname);
 	return result;
 }