From 8663c938ceb72f47941c95ff0ea491ebbdd68f26 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 6 May 2011 16:32:47 -0700 Subject: 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: David S. Miller --- include/net/sctp/structs.h | 1 + net/sctp/transport.c | 9 +++------ 2 files changed, 4 insertions(+), 6 deletions(-) diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index ff3e8cce7d66..795f4886e111 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -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; diff --git a/net/sctp/transport.c b/net/sctp/transport.c index d8595dd1a8a7..394c57ca2f54 100644 --- a/net/sctp/transport.c +++ b/net/sctp/transport.c @@ -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; -- cgit v1.2.3