Commit 9bb17e09 authored by Pavel Shilovsky's avatar Pavel Shilovsky Committed by Steve French
Browse files

CIFS: Add transform header handling callbacks 



We need to recognize and parse transformed packets in demultiplex
thread to find a corresponsing mid and process it further.

Signed-off-by: default avatarPavel Shilovsky <pshilov@microsoft.com>
parent 026e93dc

fs/cifs/cifsglob.h

+3 −0
Original line number Diff line number Diff line
@@ -440,6 +440,9 @@ struct smb_version_operations { 
				 struct smb_rqst *);

	/* free transform request */

	void (*free_transform_rq)(struct smb_rqst *);

	int (*is_transform_hdr)(void *buf);

	int (*receive_transform)(struct TCP_Server_Info *,

				 struct mid_q_entry **);

};



struct smb_version_values {

fs/cifs/connect.c

+12 −5
Original line number Diff line number Diff line
@@ -872,12 +872,19 @@ cifs_demultiplex_thread(void *p) 
			continue;

		server->total_read += length;



		if (server->ops->is_transform_hdr &&

		    server->ops->receive_transform &&

		    server->ops->is_transform_hdr(buf)) {

			length = server->ops->receive_transform(server,

								&mid_entry);

		} else {

			mid_entry = server->ops->find_mid(server, buf);



			if (!mid_entry || !mid_entry->receive)

				length = standard_receive3(server, mid_entry);

			else

				length = mid_entry->receive(server, mid_entry);

		}



		if (length < 0)

			continue;