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| author | Xin Long <lucien.xin@gmail.com> | 2018-07-02 12:21:14 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-04 04:36:54 +0200 |
| commit | 4be4139f7d0dc74e5a0932c7c7ddf0eb65da9e3a (patch) | |
| tree | 1392503fedca83a4bcab9f87eda38832686dc0a7 /net/sctp/socket.c | |
| parent | sctp: add spp_ipv6_flowlabel and spp_dscp for sctp_paddrparams (diff) | |
| download | linux-4be4139f7d0dc74e5a0932c7c7ddf0eb65da9e3a.tar.xz linux-4be4139f7d0dc74e5a0932c7c7ddf0eb65da9e3a.zip | |
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/socket.c')
| -rw-r--r-- | net/sctp/socket.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 50b7ef975b42..502c0d7cb105 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -1697,6 +1697,7 @@ static int sctp_sendmsg_new_asoc(struct sock *sk, __u16 sflags, struct sctp_association *asoc; enum sctp_scope scope; struct cmsghdr *cmsg; + __be32 flowinfo = 0; struct sctp_af *af; int err; @@ -1781,6 +1782,9 @@ static int sctp_sendmsg_new_asoc(struct sock *sk, __u16 sflags, if (!cmsgs->addrs_msg) return 0; + if (daddr->sa.sa_family == AF_INET6) + flowinfo = daddr->v6.sin6_flowinfo; + /* sendv addr list parse */ for_each_cmsghdr(cmsg, cmsgs->addrs_msg) { struct sctp_transport *transport; @@ -1813,6 +1817,7 @@ static int sctp_sendmsg_new_asoc(struct sock *sk, __u16 sflags, } dlen = sizeof(struct in6_addr); + daddr->v6.sin6_flowinfo = flowinfo; daddr->v6.sin6_family = AF_INET6; daddr->v6.sin6_port = htons(asoc->peer.port); memcpy(&daddr->v6.sin6_addr, CMSG_DATA(cmsg), dlen); |