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Commit d884aa63 authored by Xin Long's avatar Xin Long Committed by David S. Miller
Browse files

sctp: add reconf chunk event 



This patch is to add reconf chunk event based on the sctp event
frame in rx path, it will call sctp_sf_do_reconf to process the
reconf chunk.

Signed-off-by: default avatarXin Long <lucien.xin@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2040d3d7

include/net/sctp/constants.h

+3 −0
Original line number Diff line number Diff line
@@ -60,11 +60,14 @@ enum { SCTP_DEFAULT_INSTREAMS = SCTP_MAX_STREAM }; 


#define SCTP_NUM_PRSCTP_CHUNK_TYPES	1



#define SCTP_NUM_RECONF_CHUNK_TYPES	1



#define SCTP_NUM_AUTH_CHUNK_TYPES	1



#define SCTP_NUM_CHUNK_TYPES		(SCTP_NUM_BASE_CHUNK_TYPES + \

					 SCTP_NUM_ADDIP_CHUNK_TYPES +\

					 SCTP_NUM_PRSCTP_CHUNK_TYPES +\

					 SCTP_NUM_RECONF_CHUNK_TYPES +\

					 SCTP_NUM_AUTH_CHUNK_TYPES)



/* These are the different flavours of event.  */

net/sctp/sm_statetable.c

+30 −0
Original line number Diff line number Diff line
@@ -482,6 +482,32 @@ static const sctp_sm_table_entry_t prsctp_chunk_event_table[SCTP_NUM_PRSCTP_CHUN 
	TYPE_SCTP_FWD_TSN,

}; /*state_fn_t prsctp_chunk_event_table[][] */



#define TYPE_SCTP_RECONF { \

	/* SCTP_STATE_CLOSED */ \

	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \

	/* SCTP_STATE_COOKIE_WAIT */ \

	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \

	/* SCTP_STATE_COOKIE_ECHOED */ \

	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \

	/* SCTP_STATE_ESTABLISHED */ \

	TYPE_SCTP_FUNC(sctp_sf_do_reconf), \

	/* SCTP_STATE_SHUTDOWN_PENDING */ \

	TYPE_SCTP_FUNC(sctp_sf_do_reconf), \

	/* SCTP_STATE_SHUTDOWN_SENT */ \

	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \

	/* SCTP_STATE_SHUTDOWN_RECEIVED */ \

	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \

	/* SCTP_STATE_SHUTDOWN_ACK_SENT */ \

	TYPE_SCTP_FUNC(sctp_sf_discard_chunk), \

} /* TYPE_SCTP_RECONF */



/* The primary index for this table is the chunk type.

 * The secondary index for this table is the state.

 */

static const sctp_sm_table_entry_t reconf_chunk_event_table[SCTP_NUM_RECONF_CHUNK_TYPES][SCTP_STATE_NUM_STATES] = {

	TYPE_SCTP_RECONF,

}; /*state_fn_t reconf_chunk_event_table[][] */



#define TYPE_SCTP_AUTH { \

	/* SCTP_STATE_CLOSED */ \

	TYPE_SCTP_FUNC(sctp_sf_ootb), \
@@ -964,6 +990,10 @@ static const sctp_sm_table_entry_t *sctp_chunk_event_lookup(struct net *net, 
			return &addip_chunk_event_table[1][state];

	}



	if (net->sctp.reconf_enable)

		if (cid == SCTP_CID_RECONF)

			return &reconf_chunk_event_table[0][state];



	if (net->sctp.auth_enable) {

		if (cid == SCTP_CID_AUTH)

			return &auth_chunk_event_table[0][state];