Attachment 11456 Details for Bug 11486 – git-am fix for master

[patch] git-am fix for master

bug-11486 (text/plain), 5.94 KB, created by Jeremy Allison on 2015-09-23 03:00:35 UTC

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Creator: Jeremy Allison

Created: 2015-09-23 03:00:35 UTC

Size: 5.94 KB

patch

obsolete

>From e4ae6db7c160f8766f68bcc19eb78173dc5f5f9f Mon Sep 17 00:00:00 2001
>From: Jeremy Allison <jra@samba.org>
>Date: Tue, 22 Sep 2015 18:02:53 -0700
>Subject: [PATCH 1/2] s3: smbd: Fix mkdir race condition.
>
>Found by Max of LoadDynamix <adx.forum@gmail.com>
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=11486
>
>Signed-off-by: Jeremy Allison <jra@samba.org>
>---
> source3/smbd/open.c | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
>diff --git a/source3/smbd/open.c b/source3/smbd/open.c
>index 809fa35..162e834 100644
>--- a/source3/smbd/open.c
>+++ b/source3/smbd/open.c
>@@ -3488,6 +3488,25 @@ static NTSTATUS open_directory(connection_struct *conn,
> 							nt_errstr(status)));
> 						return status;
> 					}
>+
>+					/*
>+					 * If mkdir_internal() returned
>+					 * NT_STATUS_OBJECT_NAME_COLLISION
>+					 * we still must lstat the path.
>+					 */
>+
>+					if (SMB_VFS_LSTAT(conn, smb_dname)
>+							== -1) {
>+						DEBUG(2, ("Could not stat "
>+							"directory '%s' just "
>+							"opened: %s\n",
>+							smb_fname_str_dbg(
>+								smb_dname),
>+							strerror(errno)));
>+						return map_nt_error_from_unix(
>+								errno);
>+					}
>+
> 					info = FILE_WAS_OPENED;
> 				}
> 			}
>-- 
>2.1.4
>
>
>From 7cd3e781298efc5613747765edc205c6c3a3964c Mon Sep 17 00:00:00 2001
>From: Jeremy Allison <jra@samba.org>
>Date: Tue, 22 Sep 2015 18:01:22 -0700
>Subject: [PATCH 2/2] s4: torture: Test mkdir race condition.
>
>Found by Max of LoadDynamix <adx.forum@gmail.com>
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=11486
>
>Signed-off-by: Jeremy Allison <jra@samba.org>
>---
> source4/torture/smb2/create.c | 151 ++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 151 insertions(+)
>
>diff --git a/source4/torture/smb2/create.c b/source4/torture/smb2/create.c
>index 44650b5..68dbbc1 100644
>--- a/source4/torture/smb2/create.c
>+++ b/source4/torture/smb2/create.c
>@@ -1518,6 +1518,156 @@ done:
> }
> 
> /*
>+  test SMB2 mkdir with OPEN_IF on the same name twice.
>+  Must use 2 connections to hit the race.
>+*/
>+
>+static bool test_mkdir_dup(struct torture_context *tctx,
>+				struct smb2_tree *tree)
>+{
>+	const char *fname = "mkdir_dup";
>+	NTSTATUS status;
>+	bool ret = true;
>+	union smb_open io;
>+	struct smb2_tree **trees;
>+	struct smb2_request **requests;
>+	union smb_open *ios;
>+	int i, num_files = 2;
>+	int num_ok = 0;
>+	int num_created = 0;
>+	int num_existed = 0;
>+
>+	torture_comment(tctx,
>+		"Testing SMB2 Create Directory with multiple connections\n");
>+	trees = talloc_array(tctx, struct smb2_tree *, num_files);
>+	requests = talloc_array(tctx, struct smb2_request *, num_files);
>+	ios = talloc_array(tctx, union smb_open, num_files);
>+	if ((tctx->ev == NULL) || (trees == NULL) || (requests == NULL) ||
>+	    (ios == NULL)) {
>+		torture_fail(tctx, ("talloc failed\n"));
>+		ret = false;
>+		goto done;
>+	}
>+
>+	tree->session->transport->options.request_timeout = 60;
>+
>+	for (i=0; i<num_files; i++) {
>+		if (!torture_smb2_connection(tctx, &(trees[i]))) {
>+			torture_fail(tctx,
>+				talloc_asprintf(tctx,
>+					"Could not open %d'th connection\n", i));
>+			ret = false;
>+			goto done;
>+		}
>+		trees[i]->session->transport->options.request_timeout = 60;
>+	}
>+
>+	/* cleanup */
>+	smb2_util_unlink(tree, fname);
>+	smb2_util_rmdir(tree, fname);
>+
>+	/*
>+	  base ntcreatex parms
>+	*/
>+	ZERO_STRUCT(io.smb2);
>+	io.generic.level = RAW_OPEN_SMB2;
>+	io.smb2.in.desired_access = SEC_RIGHTS_FILE_ALL;
>+	io.smb2.in.alloc_size = 0;
>+	io.smb2.in.file_attributes = FILE_ATTRIBUTE_NORMAL;
>+	io.smb2.in.share_access = NTCREATEX_SHARE_ACCESS_READ|
>+		NTCREATEX_SHARE_ACCESS_WRITE|
>+		NTCREATEX_SHARE_ACCESS_DELETE;
>+	io.smb2.in.create_disposition = NTCREATEX_DISP_OPEN_IF;
>+	io.smb2.in.create_options = NTCREATEX_OPTIONS_DIRECTORY;
>+	io.smb2.in.impersonation_level = SMB2_IMPERSONATION_ANONYMOUS;
>+	io.smb2.in.security_flags = 0;
>+	io.smb2.in.fname = fname;
>+	io.smb2.in.create_flags = 0;
>+
>+	for (i=0; i<num_files; i++) {
>+		ios[i] = io;
>+		requests[i] = smb2_create_send(trees[i], &(ios[i].smb2));
>+		if (requests[i] == NULL) {
>+			torture_fail(tctx,
>+				talloc_asprintf(tctx,
>+				"could not send %d'th request\n", i));
>+			ret = false;
>+			goto done;
>+		}
>+	}
>+
>+	torture_comment(tctx, "waiting for replies\n");
>+	while (1) {
>+		bool unreplied = false;
>+		for (i=0; i<num_files; i++) {
>+			if (requests[i] == NULL) {
>+				continue;
>+			}
>+			if (requests[i]->state < SMB2_REQUEST_DONE) {
>+				unreplied = true;
>+				break;
>+			}
>+			status = smb2_create_recv(requests[i], tctx,
>+						  &(ios[i].smb2));
>+
>+			if (NT_STATUS_IS_OK(status)) {
>+				num_ok += 1;
>+
>+				if (ios[i].smb2.out.create_action ==
>+						NTCREATEX_ACTION_CREATED) {
>+					num_created++;
>+				}
>+				if (ios[i].smb2.out.create_action ==
>+						NTCREATEX_ACTION_EXISTED) {
>+					num_existed++;
>+				}
>+			} else {
>+				torture_fail(tctx,
>+					talloc_asprintf(tctx,
>+					"File %d returned status %s\n", i,
>+					nt_errstr(status)));
>+			}
>+
>+
>+			requests[i] = NULL;
>+		}
>+		if (!unreplied) {
>+			break;
>+		}
>+
>+		if (tevent_loop_once(tctx->ev) != 0) {
>+			torture_fail(tctx, "tevent_loop_once failed\n");
>+			ret = false;
>+			goto done;
>+		}
>+	}
>+
>+	if (num_ok != 2) {
>+		torture_fail(tctx,
>+			talloc_asprintf(tctx,
>+			"num_ok == %d\n", num_ok));
>+		ret = false;
>+	}
>+	if (num_created != 1) {
>+		torture_fail(tctx,
>+			talloc_asprintf(tctx,
>+			"num_created == %d\n", num_created));
>+		ret = false;
>+	}
>+	if (num_existed != 1) {
>+		torture_fail(tctx,
>+			talloc_asprintf(tctx,
>+			"num_existed == %d\n", num_existed));
>+		ret = false;
>+	}
>+done:
>+	smb2_deltree(tree, fname);
>+
>+	return ret;
>+}
>+
>+
>+/*
>    basic testing of SMB2 read
> */
> struct torture_suite *torture_smb2_create_init(void)
>@@ -1535,6 +1685,7 @@ struct torture_suite *torture_smb2_create_init(void)
> 	torture_suite_add_1smb2_test(suite, "aclfile", test_create_acl_file);
> 	torture_suite_add_1smb2_test(suite, "acldir", test_create_acl_dir);
> 	torture_suite_add_1smb2_test(suite, "nulldacl", test_create_null_dacl);
>+	torture_suite_add_1smb2_test(suite, "mkdir-dup", test_mkdir_dup);
> 
> 	suite->description = talloc_strdup(suite, "SMB2-CREATE tests");
> 
>-- 
>2.1.4
>

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Attachments on bug 11486: 11396 | 11409 | 11456 | 11459 | 11464