From: Jeremy Allison <jra@samba.org>
Date: Thu, 22 Aug 2019 21:29:45 +0000 (-0700)
Subject: s3: VFS: vfs_time_audit. Implement readlinkat().
X-Git-Tag: tevent-0.10.1~175
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=854320cd5df93f430cf8a51b1924aa9cd2d5e135;p=thirdparty%2Fsamba.git

s3: VFS: vfs_time_audit. Implement readlinkat().

Currently identical to readlink().

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Böhme <slow@samba.org>
---

diff --git a/source3/modules/vfs_time_audit.c b/source3/modules/vfs_time_audit.c
index 929e9b001de..b1eb0f979a2 100644
--- a/source3/modules/vfs_time_audit.c
+++ b/source3/modules/vfs_time_audit.c
@@ -1421,6 +1421,33 @@ static int smb_time_audit_readlink(vfs_handle_struct *handle,
 	return result;
 }
 
+static int smb_time_audit_readlinkat(vfs_handle_struct *handle,
+				files_struct *dirfsp,
+				const struct smb_filename *smb_fname,
+				char *buf,
+				size_t bufsiz)
+{
+	int result;
+	struct timespec ts1,ts2;
+	double timediff;
+
+	clock_gettime_mono(&ts1);
+	result = SMB_VFS_NEXT_READLINKAT(handle,
+				dirfsp,
+				smb_fname,
+				buf,
+				bufsiz);
+	clock_gettime_mono(&ts2);
+	timediff = nsec_time_diff(&ts2,&ts1)*1.0e-9;
+
+	if (timediff > audit_timeout) {
+		smb_time_audit_log_fname("readlinkat", timediff,
+				smb_fname->base_name);
+	}
+
+	return result;
+}
+
 static int smb_time_audit_linkat(vfs_handle_struct *handle,
 				files_struct *srcfsp,
 				const struct smb_filename *old_smb_fname,
@@ -2853,6 +2880,7 @@ static struct vfs_fn_pointers vfs_time_audit_fns = {
 	.getlock_fn = smb_time_audit_getlock,
 	.symlink_fn = smb_time_audit_symlink,
 	.readlink_fn = smb_time_audit_readlink,
+	.readlinkat_fn = smb_time_audit_readlinkat,
 	.linkat_fn = smb_time_audit_linkat,
 	.mknodat_fn = smb_time_audit_mknodat,
 	.realpath_fn = smb_time_audit_realpath,