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Commit 8663c938 authored by David S. Miller's avatar David S. Miller
Browse files

sctp: Store a flowi in transports to provide persistent keying. 



Several future simplifications are possible now because of this.

For example, the sctp_addr unions can simply refer directly to
the flowi information.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b57ae01a

include/net/sctp/structs.h

+1 −0
Original line number Diff line number Diff line
@@ -894,6 +894,7 @@ struct sctp_transport { 
		/* Is this structure kfree()able? */

		malloced:1;



	struct flowi fl;



	/* This is the peer's IP address and port. */

	union sctp_addr ipaddr;

net/sctp/transport.c

+3 −6
Original line number Diff line number Diff line
@@ -213,13 +213,11 @@ void sctp_transport_set_owner(struct sctp_transport *transport, 
/* Initialize the pmtu of a transport. */

void sctp_transport_pmtu(struct sctp_transport *transport, struct sock *sk)

{

	struct flowi fl;



	/* If we don't have a fresh route, look one up */

	if (!transport->dst || transport->dst->obsolete > 1) {

		dst_release(transport->dst);

		transport->af_specific->get_dst(transport, &transport->saddr,

					      &fl, sk);

						&transport->fl, sk);

	}



	if (transport->dst) {
@@ -274,14 +272,13 @@ void sctp_transport_route(struct sctp_transport *transport, 
{

	struct sctp_association *asoc = transport->asoc;

	struct sctp_af *af = transport->af_specific;

	struct flowi fl;



	af->get_dst(transport, saddr, &fl, sctp_opt2sk(opt));

	af->get_dst(transport, saddr, &transport->fl, sctp_opt2sk(opt));



	if (saddr)

		memcpy(&transport->saddr, saddr, sizeof(union sctp_addr));

	else

		af->get_saddr(opt, transport, &fl);

		af->get_saddr(opt, transport, &transport->fl);



	if ((transport->param_flags & SPP_PMTUD_DISABLE) && transport->pathmtu) {

		return;