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| author | Paulo Alcantara <pc@manguebit.com> | 2024-01-29 21:04:44 -0300 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2024-02-01 12:15:51 -0600 |
| commit | 11d4d1dba3315f73d2d1d386f5bf4811a8241d45 (patch) | |
| tree | 895581c1b90b00b98e249951732d451aaed6e8c9 /fs/smb/client/cifsglob.h | |
| parent | 6aac002bcfd554aff6d3ebb55e1660d078d70ab0 (diff) | |
| download | linux-stable-11d4d1dba3315f73d2d1d386f5bf4811a8241d45.tar.gz linux-stable-11d4d1dba3315f73d2d1d386f5bf4811a8241d45.tar.bz2 linux-stable-11d4d1dba3315f73d2d1d386f5bf4811a8241d45.zip | |
smb: client: increase number of PDUs allowed in a compound request
With the introduction of SMB2_OP_QUERY_WSL_EA, the client may now send
5 commands in a single compound request in order to query xattrs from
potential WSL reparse points, which should be fine as we currently
allow up to 5 PDUs in a single compound request. However, if
encryption is enabled (e.g. 'seal' mount option) or enforced by the
server, current MAX_COMPOUND(5) won't be enough as we require an extra
PDU for the transform header.
Fix this by increasing MAX_COMPOUND to 7 and, while we're at it, add
an WARN_ON_ONCE() and return -EIO instead of -ENOMEM in case we
attempt to send a compound request that couldn't include the extra
transform header.
Signed-off-by: Paulo Alcantara <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/smb/client/cifsglob.h')
| -rw-r--r-- | fs/smb/client/cifsglob.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h index 9093c507042f..c86a72c9d9ec 100644 --- a/fs/smb/client/cifsglob.h +++ b/fs/smb/client/cifsglob.h @@ -87,7 +87,7 @@ #define SMB_INTERFACE_POLL_INTERVAL 600 /* maximum number of PDUs in one compound */ -#define MAX_COMPOUND 5 +#define MAX_COMPOUND 7 /* * Default number of credits to keep available for SMB3. |