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Commit c28445c3 authored by Xin Long's avatar Xin Long Committed by David S. Miller
Browse files

sctp: add reconf_enable in asoc ep and netns 



This patch is to add reconf_enable field in all of asoc ep and netns
to indicate if they support stream reset.

When initializing, asoc reconf_enable get the default value from ep
reconf_enable which is from netns netns reconf_enable by default.

It is also to add reconf_capable in asoc peer part to know if peer
supports reconf_enable, the value is set if ext params have reconf
chunk support when processing init chunk, just as rfc6525 section
5.1.1 demands.

Signed-off-by: default avatarXin Long <lucien.xin@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7a090b04

include/net/netns/sctp.h

+3 −0
Original line number Diff line number Diff line
@@ -118,6 +118,9 @@ struct netns_sctp { 
	/* Flag to indicate if PR-SCTP is enabled. */

	int prsctp_enable;



	/* Flag to indicate if PR-CONFIG is enabled. */

	int reconf_enable;



	/* Flag to idicate if SCTP-AUTH is enabled */

	int auth_enable;

include/net/sctp/structs.h

+5 −2
Original line number Diff line number Diff line
@@ -1255,7 +1255,8 @@ struct sctp_endpoint { 
	struct list_head endpoint_shared_keys;

	__u16 active_key_id;

	__u8  auth_enable:1,

	      prsctp_enable:1;

	      prsctp_enable:1,

	      reconf_enable:1;

};



/* Recover the outter endpoint structure. */
@@ -1508,6 +1509,7 @@ struct sctp_association { 
			hostname_address:1, /* Peer understands DNS addresses? */

			asconf_capable:1,   /* Does peer support ADDIP? */

			prsctp_capable:1,   /* Can peer do PR-SCTP? */

			reconf_capable:1,   /* Can peer do RE-CONFIG? */

			auth_capable:1;     /* Is peer doing SCTP-AUTH? */



		/* sack_needed : This flag indicates if the next received
@@ -1867,7 +1869,8 @@ struct sctp_association { 


	__u8 need_ecne:1,	/* Need to send an ECNE Chunk? */

	     temp:1,		/* Is it a temporary association? */

	     prsctp_enable:1;

	     prsctp_enable:1,

	     reconf_enable:1;



	__u32 strreset_outseq; /* Update after receiving response */

	__u32 strreset_inseq; /* Update after receiving request */

net/sctp/associola.c

+1 −0
Original line number Diff line number Diff line
@@ -270,6 +270,7 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a 


	asoc->active_key_id = ep->active_key_id;

	asoc->prsctp_enable = ep->prsctp_enable;

	asoc->reconf_enable = ep->reconf_enable;



	/* Save the hmacs and chunks list into this association */

	if (ep->auth_hmacs_list)

net/sctp/endpointola.c

+1 −0
Original line number Diff line number Diff line
@@ -164,6 +164,7 @@ static struct sctp_endpoint *sctp_endpoint_init(struct sctp_endpoint *ep, 
	ep->auth_hmacs_list = auth_hmacs;

	ep->auth_chunk_list = auth_chunks;

	ep->prsctp_enable = net->sctp.prsctp_enable;

	ep->reconf_enable = net->sctp.reconf_enable;



	return ep;

net/sctp/protocol.c

+3 −0
Original line number Diff line number Diff line
@@ -1258,6 +1258,9 @@ static int __net_init sctp_defaults_init(struct net *net) 
	/* Enable PR-SCTP by default. */

	net->sctp.prsctp_enable = 1;



	/* Disable RECONF by default. */

	net->sctp.reconf_enable = 0;



	/* Disable AUTH by default. */

	net->sctp.auth_enable = 0;