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Diffstat (limited to 'fs/cifs/connect.c')
-rw-r--r--fs/cifs/connect.c24
1 files changed, 20 insertions, 4 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index b68c5b9ffbea..adc97d0be7c0 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -856,6 +856,7 @@ cifs_demultiplex_thread(void *p)
int length;
struct TCP_Server_Info *server = p;
unsigned int pdu_length;
+ unsigned int next_offset;
char *buf = NULL;
struct task_struct *task_to_wake = NULL;
struct mid_q_entry *mid_entry;
@@ -893,17 +894,18 @@ cifs_demultiplex_thread(void *p)
* so we can now interpret the length field.
*/
pdu_length = get_rfc1002_length(buf);
- server->pdu_size = pdu_length;
cifs_dbg(FYI, "RFC1002 header 0x%x\n", pdu_length);
if (!is_smb_response(server, buf[0]))
continue;
+next_pdu:
+ server->pdu_size = pdu_length;
/* make sure we have enough to get to the MID */
- if (pdu_length < HEADER_SIZE(server) - 1 -
+ if (server->pdu_size < HEADER_SIZE(server) - 1 -
server->vals->header_preamble_size) {
cifs_dbg(VFS, "SMB response too short (%u bytes)\n",
- pdu_length);
+ server->pdu_size);
cifs_reconnect(server);
wake_up(&server->response_q);
continue;
@@ -918,6 +920,12 @@ cifs_demultiplex_thread(void *p)
continue;
server->total_read += length;
+ if (server->ops->next_header) {
+ next_offset = server->ops->next_header(buf);
+ if (next_offset)
+ server->pdu_size = next_offset;
+ }
+
if (server->ops->is_transform_hdr &&
server->ops->receive_transform &&
server->ops->is_transform_hdr(buf)) {
@@ -963,7 +971,15 @@ cifs_demultiplex_thread(void *p)
server->ops->dump_detail(buf, server);
cifs_dump_mids(server);
#endif /* CIFS_DEBUG2 */
-
+ }
+ if (pdu_length > server->pdu_size) {
+ if (!allocate_buffers(server))
+ continue;
+ pdu_length -= server->pdu_size;
+ server->total_read = 0;
+ server->large_buf = false;
+ buf = server->smallbuf;
+ goto next_pdu;
}
} /* end while !EXITING */