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authorXin Long <lucien.xin@gmail.com>2018-09-03 15:47:11 +0800
committerDavid S. Miller <davem@davemloft.net>2018-09-03 21:57:54 -0700
commit741880e1f2f59b20125dc480765d2546cec66080 (patch)
treef946f3f23c3302f981a109027330f44bff622716 /net/sctp
parentaf8a2b8ba7678b4695f9e854ba9abae1076beabe (diff)
downloadlinux-741880e1f2f59b20125dc480765d2546cec66080.tar.bz2
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: 0b0dce7a36fb ("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>
Diffstat (limited to 'net/sctp')
-rw-r--r--net/sctp/socket.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index a0ccfa4b8220..f73e9d38d5ba 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -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) {
- trans->flowlabel = params->spp_ipv6_flowlabel &
- SCTP_FLOWLABEL_VAL_MASK;
- trans->flowlabel |= SCTP_FLOWLABEL_SET_MASK;
+ 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;