diff options
Diffstat (limited to 'fs/cifs/smb2pdu.c')
| -rw-r--r-- | fs/cifs/smb2pdu.c | 46 |
1 files changed, 33 insertions, 13 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index f58e4dc3987b..c8cd7b6cdda2 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -1873,10 +1873,21 @@ create_reconnect_durable_buf(struct cifs_fid *fid) return buf; } -__u8 -smb2_parse_lease_state(struct TCP_Server_Info *server, +static void +parse_query_id_ctxt(struct create_context *cc, struct smb2_file_all_info *buf) +{ + struct create_on_disk_id *pdisk_id = (struct create_on_disk_id *)cc; + + cifs_dbg(FYI, "parse query id context 0x%llx 0x%llx\n", + pdisk_id->DiskFileId, pdisk_id->VolumeId); + buf->IndexNumber = pdisk_id->DiskFileId; +} + +void +smb2_parse_contexts(struct TCP_Server_Info *server, struct smb2_create_rsp *rsp, - unsigned int *epoch, char *lease_key) + unsigned int *epoch, char *lease_key, __u8 *oplock, + struct smb2_file_all_info *buf) { char *data_offset; struct create_context *cc; @@ -1884,15 +1895,24 @@ smb2_parse_lease_state(struct TCP_Server_Info *server, unsigned int remaining; char *name; + *oplock = 0; data_offset = (char *)rsp + le32_to_cpu(rsp->CreateContextsOffset); remaining = le32_to_cpu(rsp->CreateContextsLength); cc = (struct create_context *)data_offset; + + /* Initialize inode number to 0 in case no valid data in qfid context */ + if (buf) + buf->IndexNumber = 0; + while (remaining >= sizeof(struct create_context)) { name = le16_to_cpu(cc->NameOffset) + (char *)cc; if (le16_to_cpu(cc->NameLength) == 4 && - strncmp(name, "RqLs", 4) == 0) - return server->ops->parse_lease_buf(cc, epoch, - lease_key); + strncmp(name, SMB2_CREATE_REQUEST_LEASE, 4) == 0) + *oplock = server->ops->parse_lease_buf(cc, epoch, + lease_key); + else if (buf && (le16_to_cpu(cc->NameLength) == 4) && + strncmp(name, SMB2_CREATE_QUERY_ON_DISK_ID, 4) == 0) + parse_query_id_ctxt(cc, buf); next = le32_to_cpu(cc->Next); if (!next) @@ -1901,7 +1921,10 @@ smb2_parse_lease_state(struct TCP_Server_Info *server, cc = (struct create_context *)((char *)cc + next); } - return 0; + if (rsp->OplockLevel != SMB2_OPLOCK_LEVEL_LEASE) + *oplock = rsp->OplockLevel; + + return; } static int @@ -2588,12 +2611,9 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path, buf->DeletePending = 0; } - if (rsp->OplockLevel == SMB2_OPLOCK_LEVEL_LEASE) - *oplock = smb2_parse_lease_state(server, rsp, - &oparms->fid->epoch, - oparms->fid->lease_key); - else - *oplock = rsp->OplockLevel; + + smb2_parse_contexts(server, rsp, &oparms->fid->epoch, + oparms->fid->lease_key, oplock, buf); creat_exit: SMB2_open_free(&rqst); free_rsp_buf(resp_buftype, rsp); |