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authorJakub Kicinski <kuba@kernel.org>2024-07-11 12:57:57 -0700
committerJakub Kicinski <kuba@kernel.org>2024-07-11 12:58:13 -0700
commit7c8267275de6989a9b682a07d75e89395457ee01 (patch)
treedb28c44520d9f786a4142871b42eb80f0d205ddd /fs/smb/server/smb2pdu.c
parenta6a9fcb10836105e525ccb8bc1a6af4b20a113be (diff)
parent51df8e0cbaefd432f7029dde94e6c7e4e5b19465 (diff)
downloadlwn-7c8267275de6989a9b682a07d75e89395457ee01.tar.gz
lwn-7c8267275de6989a9b682a07d75e89395457ee01.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. Conflicts: net/sched/act_ct.c 26488172b029 ("net/sched: Fix UAF when resolving a clash") 3abbd7ed8b76 ("act_ct: prepare for stolen verdict coming from conntrack and nat engine") No adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'fs/smb/server/smb2pdu.c')
-rw-r--r--fs/smb/server/smb2pdu.c22
1 files changed, 18 insertions, 4 deletions
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index e7e07891781b..840c71c66b30 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -2051,15 +2051,22 @@ out_err1:
* @access: file access flags
* @disposition: file disposition flags
* @may_flags: set with MAY_ flags
+ * @is_dir: is creating open flags for directory
*
* Return: file open flags
*/
static int smb2_create_open_flags(bool file_present, __le32 access,
__le32 disposition,
- int *may_flags)
+ int *may_flags,
+ bool is_dir)
{
int oflags = O_NONBLOCK | O_LARGEFILE;
+ if (is_dir) {
+ access &= ~FILE_WRITE_DESIRE_ACCESS_LE;
+ ksmbd_debug(SMB, "Discard write access to a directory\n");
+ }
+
if (access & FILE_READ_DESIRED_ACCESS_LE &&
access & FILE_WRITE_DESIRE_ACCESS_LE) {
oflags |= O_RDWR;
@@ -3167,7 +3174,9 @@ int smb2_open(struct ksmbd_work *work)
open_flags = smb2_create_open_flags(file_present, daccess,
req->CreateDisposition,
- &may_flags);
+ &may_flags,
+ req->CreateOptions & FILE_DIRECTORY_FILE_LE ||
+ (file_present && S_ISDIR(d_inode(path.dentry)->i_mode)));
if (!test_tree_conn_flag(tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) {
if (open_flags & (O_CREAT | O_TRUNC)) {
@@ -5314,8 +5323,13 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
info = (struct filesystem_device_info *)rsp->Buffer;
- info->DeviceType = cpu_to_le32(stfs.f_type);
- info->DeviceCharacteristics = cpu_to_le32(0x00000020);
+ info->DeviceType = cpu_to_le32(FILE_DEVICE_DISK);
+ info->DeviceCharacteristics =
+ cpu_to_le32(FILE_DEVICE_IS_MOUNTED);
+ if (!test_tree_conn_flag(work->tcon,
+ KSMBD_TREE_CONN_FLAG_WRITABLE))
+ info->DeviceCharacteristics |=
+ cpu_to_le32(FILE_READ_ONLY_DEVICE);
rsp->OutputBufferLength = cpu_to_le32(8);
break;
}