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[SCTP]: Implement the receive and verification of AUTH chunk

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This patch implements the receive path needed to process authenticated
chunks.  Add ability to process the AUTH chunk and handle edge cases
for authenticated COOKIE-ECHO as well.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vlad Yasevich
2007-10-03 17:51:34 -07:00
committed by David S. Miller
parent 4cd57c8078
commit bbd0d59809
9 changed files with 374 additions and 13 deletions
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include/net/sctp/structs.h
+8
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@@ -724,6 +724,13 @@ struct sctp_chunk {
*/
struct sctp_transport *transport;
/* SCTP-AUTH: For the special case inbound processing of COOKIE-ECHO
* we need save a pointer to the AUTH chunk, since the SCTP-AUTH
* spec violates the principle premis that all chunks are processed
* in order.
*/
struct sk_buff *auth_chunk;
__u8 rtt_in_progress; /* Is this chunk used for RTT calculation? */
__u8 resent; /* Has this chunk ever been retransmitted. */
__u8 has_tsn; /* Does this chunk have a TSN yet? */
@@ -1067,6 +1074,7 @@ void sctp_inq_init(struct sctp_inq *);
void sctp_inq_free(struct sctp_inq *);
void sctp_inq_push(struct sctp_inq *, struct sctp_chunk *packet);
struct sctp_chunk *sctp_inq_pop(struct sctp_inq *);
struct sctp_chunkhdr *sctp_inq_peek(struct sctp_inq *);
void sctp_inq_set_th_handler(struct sctp_inq *, work_func_t);
/* This is the structure we use to hold outbound chunks. You push