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authorRonnie Sahlberg <lsahlber@redhat.com>2022-03-22 16:29:02 +1000
committerSteve French <stfrench@microsoft.com>2022-03-23 15:17:22 -0500
commit5e0c969e9ed23745251ce8114778b7fad66df434 (patch)
tree0e3801cd26b6fff8309be96154e65c9b0cf45347
parent70ef38515b664a14a3c8a3007778a56ccd02d43f (diff)
cifs: convert the path to utf16 in smb2_query_info_compound
and not in the callers. Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz> Signed-off-by: Steve French <stfrench@microsoft.com>
-rw-r--r--fs/cifs/smb2ops.c23
-rw-r--r--fs/cifs/smb2proto.h2
2 files changed, 13 insertions, 12 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 891b11576e55..024adb91dd57 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -1192,17 +1192,12 @@ smb2_query_eas(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_sb_info *cifs_sb)
{
int rc;
- __le16 *utf16_path;
struct kvec rsp_iov = {NULL, 0};
int buftype = CIFS_NO_BUFFER;
struct smb2_query_info_rsp *rsp;
struct smb2_file_full_ea_info *info = NULL;
- utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
- if (!utf16_path)
- return -ENOMEM;
-
- rc = smb2_query_info_compound(xid, tcon, utf16_path,
+ rc = smb2_query_info_compound(xid, tcon, path,
FILE_READ_EA,
FILE_FULL_EA_INFORMATION,
SMB2_O_INFO_FILE,
@@ -1235,7 +1230,6 @@ smb2_query_eas(const unsigned int xid, struct cifs_tcon *tcon,
le32_to_cpu(rsp->OutputBufferLength), ea_name);
qeas_exit:
- kfree(utf16_path);
free_rsp_buf(buftype, rsp_iov.iov_base);
return rc;
}
@@ -1295,7 +1289,7 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
* the new EA. If not we should not add it since we
* would not be able to even read the EAs back.
*/
- rc = smb2_query_info_compound(xid, tcon, utf16_path,
+ rc = smb2_query_info_compound(xid, tcon, path,
FILE_READ_EA,
FILE_FULL_EA_INFORMATION,
SMB2_O_INFO_FILE,
@@ -2646,7 +2640,7 @@ smb2_set_next_command(struct cifs_tcon *tcon, struct smb_rqst *rqst)
*/
int
smb2_query_info_compound(const unsigned int xid, struct cifs_tcon *tcon,
- __le16 *utf16_path, u32 desired_access,
+ const char *path, u32 desired_access,
u32 class, u32 type, u32 output_len,
struct kvec *rsp, int *buftype,
struct cifs_sb_info *cifs_sb)
@@ -2664,6 +2658,13 @@ smb2_query_info_compound(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_open_parms oparms;
struct cifs_fid fid;
int rc;
+ __le16 *utf16_path;
+
+ if (!path)
+ path = "";
+ utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
+ if (!utf16_path)
+ return -ENOMEM;
if (smb3_encryption_required(tcon))
flags |= CIFS_TRANSFORM_REQ;
@@ -2729,6 +2730,7 @@ smb2_query_info_compound(const unsigned int xid, struct cifs_tcon *tcon,
*buftype = resp_buftype[1];
qic_exit:
+ kfree(utf16_path);
SMB2_open_free(&rqst[0]);
SMB2_query_info_free(&rqst[1]);
SMB2_close_free(&rqst[2]);
@@ -2743,13 +2745,12 @@ smb2_queryfs(const unsigned int xid, struct cifs_tcon *tcon,
{
struct smb2_query_info_rsp *rsp;
struct smb2_fs_full_size_info *info = NULL;
- __le16 utf16_path = 0; /* Null - open root of share */
struct kvec rsp_iov = {NULL, 0};
int buftype = CIFS_NO_BUFFER;
int rc;
- rc = smb2_query_info_compound(xid, tcon, &utf16_path,
+ rc = smb2_query_info_compound(xid, tcon, "",
FILE_READ_ATTRIBUTES,
FS_FULL_SIZE_INFORMATION,
SMB2_O_INFO_FILESYSTEM,
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 4a7062fd1c26..a69f1eed1cfe 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -283,7 +283,7 @@ extern int smb311_update_preauth_hash(struct cifs_ses *ses,
struct kvec *iov, int nvec);
extern int smb2_query_info_compound(const unsigned int xid,
struct cifs_tcon *tcon,
- __le16 *utf16_path, u32 desired_access,
+ const char *path, u32 desired_access,
u32 class, u32 type, u32 output_len,
struct kvec *rsp, int *buftype,
struct cifs_sb_info *cifs_sb);