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CIFS: Add SMB2 support for is_path_accessible

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that needs for a successful mount through SMB2 protocol.

Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>
This commit is contained in:
Pavel Shilovsky
2011-12-26 22:58:46 +04:00
committed by Pavel Shilovsky
parent 68889f269b
commit 2503a0dba9
7 changed files with 423 additions and 0 deletions
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25
fs/cifs/smb2ops.c
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@@ -157,6 +157,30 @@ smb2_negotiate(const unsigned int xid, struct cifs_ses *ses)
return rc;
}
static int
smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_sb_info *cifs_sb, const char *full_path)
{
int rc;
__u64 persistent_fid, volatile_fid;
__le16 *utf16_path;
utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
if (!utf16_path)
return -ENOMEM;
rc = SMB2_open(xid, tcon, utf16_path, &persistent_fid, &volatile_fid,
FILE_READ_ATTRIBUTES, FILE_OPEN, 0, 0);
if (rc) {
kfree(utf16_path);
return rc;
}
rc = SMB2_close(xid, tcon, persistent_fid, volatile_fid);
kfree(utf16_path);
return rc;
}
struct smb_version_operations smb21_operations = {
.setup_request = smb2_setup_request,
.check_receive = smb2_check_receive,
@@ -174,6 +198,7 @@ struct smb_version_operations smb21_operations = {
.logoff = SMB2_logoff,
.tree_connect = SMB2_tcon,
.tree_disconnect = SMB2_tdis,
.is_path_accessible = smb2_is_path_accessible,
};
struct smb_version_values smb21_values = {