diff options
| author | Xin Long <lucien.xin@gmail.com> | 2018-07-02 18:21:14 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-04 11:36:54 +0900 |
| commit | 4be4139f7d0dc74e5a0932c7c7ddf0eb65da9e3a (patch) | |
| tree | 1392503fedca83a4bcab9f87eda38832686dc0a7 /net/sctp/associola.c | |
| parent | 0b0dce7a36fb9f1a9dd8245ea82d3a268c6943fe (diff) | |
sctp: add support for setting flowlabel when adding a transport
Struct sockaddr_in6 has the member sin6_flowinfo that includes the
ipv6 flowlabel, it should also support for setting flowlabel when
adding a transport whose ipaddr is from userspace.
Note that addrinfo in sctp_sendmsg is using struct in6_addr for
the secondary addrs, which doesn't contain sin6_flowinfo, and
it needs to copy sin6_flowinfo from the primary addr.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sctp/associola.c')
| -rw-r--r-- | net/sctp/associola.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/net/sctp/associola.c b/net/sctp/associola.c index 16ecfbc95614..297d9cf960b9 100644 --- a/net/sctp/associola.c +++ b/net/sctp/associola.c @@ -650,8 +650,16 @@ struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc, peer->sackdelay = asoc->sackdelay; peer->sackfreq = asoc->sackfreq; - if (addr->sa.sa_family == AF_INET6) - peer->flowlabel = asoc->flowlabel; + if (addr->sa.sa_family == AF_INET6) { + __be32 info = addr->v6.sin6_flowinfo; + + if (info) { + peer->flowlabel = ntohl(info & IPV6_FLOWLABEL_MASK); + peer->flowlabel |= SCTP_FLOWLABEL_SET_MASK; + } else { + peer->flowlabel = asoc->flowlabel; + } + } peer->dscp = asoc->dscp; /* Enable/disable heartbeat, SACK delay, and path MTU discovery |