Commit 741880e1 authored Sep 03, 2018 by Xin Long Committed by David S. Miller Sep 03, 2018

sctp: not traverse asoc trans list if non-ipv6 trans exists for ipv6_flowlabel



When users set params.spp_address and get a trans, ipv6_flowlabel flag
should be applied into this trans. But even if this one is not an ipv6
trans, it should not go to apply it into all other transes of the asoc
but simply ignore it.

Fixes: 0b0dce7a ("sctp: add spp_ipv6_flowlabel and spp_dscp for sctp_paddrparams")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent af8a2b8b

net/sctp/socket.c

+6 −4

Original line number	Diff line number	Diff line
		@@ -2658,10 +2658,12 @@ static int sctp_apply_peer_addr_params(struct sctp_paddrparams *params,
		}

		if (params->spp_flags & SPP_IPV6_FLOWLABEL) {
		if (trans && trans->ipaddr.sa.sa_family == AF_INET6) {
		if (trans) {
		if (trans->ipaddr.sa.sa_family == AF_INET6) {
		trans->flowlabel = params->spp_ipv6_flowlabel &
		SCTP_FLOWLABEL_VAL_MASK;
		trans->flowlabel \|= SCTP_FLOWLABEL_SET_MASK;
		}
		} else if (asoc) {
		struct sctp_transport *t;

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