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authorPali Rohár <pali@kernel.org>2024-12-28 21:09:54 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-05-29 11:02:02 +0200
commit0705b6d5bc328d6fa422763b1adc94d38d4cfc55 (patch)
treec42c5d1bdc0c100284c2e7d0fb6b843c53762dfa
parent6ebb9d54eccc8026b386e76eff69364d33373da5 (diff)
cifs: Fix querying and creating MF symlinks over SMB1
[ Upstream commit 4236ac9fe5b8b42756070d4abfb76fed718e87c2 ] Old SMB1 servers without CAP_NT_SMBS do not support CIFS_open() function and instead SMBLegacyOpen() needs to be used. This logic is already handled in cifs_open_file() function, which is server->ops->open callback function. So for querying and creating MF symlinks use open callback function instead of CIFS_open() function directly. This change fixes querying and creating new MF symlinks on Windows 98. Currently cifs_query_mf_symlink() is not able to detect MF symlink and cifs_create_mf_symlink() is failing with EIO error. Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--fs/smb/client/link.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/smb/client/link.c b/fs/smb/client/link.c
index 47ddeb7fa111..aa45ef6ae99a 100644
--- a/fs/smb/client/link.c
+++ b/fs/smb/client/link.c
@@ -257,7 +257,7 @@ cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
struct cifs_open_parms oparms;
struct cifs_io_parms io_parms = {0};
int buf_type = CIFS_NO_BUFFER;
- FILE_ALL_INFO file_info;
+ struct cifs_open_info_data query_data;
oparms = (struct cifs_open_parms) {
.tcon = tcon,
@@ -269,11 +269,11 @@ cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
.fid = &fid,
};
- rc = CIFS_open(xid, &oparms, &oplock, &file_info);
+ rc = tcon->ses->server->ops->open(xid, &oparms, &oplock, &query_data);
if (rc)
return rc;
- if (file_info.EndOfFile != cpu_to_le64(CIFS_MF_SYMLINK_FILE_SIZE)) {
+ if (query_data.fi.EndOfFile != cpu_to_le64(CIFS_MF_SYMLINK_FILE_SIZE)) {
rc = -ENOENT;
/* it's not a symlink */
goto out;
@@ -312,7 +312,7 @@ cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
.fid = &fid,
};
- rc = CIFS_open(xid, &oparms, &oplock, NULL);
+ rc = tcon->ses->server->ops->open(xid, &oparms, &oplock, NULL);
if (rc)
return rc;