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 <davem@davemloft.net>
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@ -894,6 +894,7 @@ struct sctp_transport {
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/* Is this structure kfree()able? */
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malloced:1;
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struct flowi fl;
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/* This is the peer's IP address and port. */
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union sctp_addr ipaddr;
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@ -213,13 +213,11 @@ void sctp_transport_set_owner(struct sctp_transport *transport,
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/* Initialize the pmtu of a transport. */
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void sctp_transport_pmtu(struct sctp_transport *transport, struct sock *sk)
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{
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struct flowi fl;
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/* If we don't have a fresh route, look one up */
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if (!transport->dst || transport->dst->obsolete > 1) {
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dst_release(transport->dst);
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transport->af_specific->get_dst(transport, &transport->saddr,
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&fl, sk);
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&transport->fl, sk);
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}
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if (transport->dst) {
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@ -274,14 +272,13 @@ void sctp_transport_route(struct sctp_transport *transport,
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{
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struct sctp_association *asoc = transport->asoc;
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struct sctp_af *af = transport->af_specific;
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struct flowi fl;
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af->get_dst(transport, saddr, &fl, sctp_opt2sk(opt));
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af->get_dst(transport, saddr, &transport->fl, sctp_opt2sk(opt));
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if (saddr)
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memcpy(&transport->saddr, saddr, sizeof(union sctp_addr));
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else
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af->get_saddr(opt, transport, &fl);
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af->get_saddr(opt, transport, &transport->fl);
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if ((transport->param_flags & SPP_PMTUD_DISABLE) && transport->pathmtu) {
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return;
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