diff options
| author |   Xin Long <lucien.xin@gmail.com> | 2018-09-03 15:47:11 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-09-03 21:57:54 -0700 |
| commit | 741880e1f2f59b20125dc480765d2546cec66080 (patch) | |
| tree | f946f3f23c3302f981a109027330f44bff622716 /net/sctp/socket.c | |
| parent | sctp: fix invalid reference to the index variable of the iterator (diff) | |
| download | wireguard-linux-741880e1f2f59b20125dc480765d2546cec66080.tar.xz wireguard-linux-741880e1f2f59b20125dc480765d2546cec66080.zip | |
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/socket.c')
| -rw-r--r-- | net/sctp/socket.c | 10 |
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; |