diff options
Diffstat (limited to 'net/mptcp/options.c')
| -rw-r--r-- | net/mptcp/options.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/net/mptcp/options.c b/net/mptcp/options.c index ef50a8628d77..adfa96dd991c 100644 --- a/net/mptcp/options.c +++ b/net/mptcp/options.c @@ -282,6 +282,15 @@ static void mptcp_parse_option(const struct sk_buff *skb, pr_debug("RM_ADDR: id=%d", mp_opt->rm_id); break; + case MPTCPOPT_MP_PRIO: + if (opsize != TCPOLEN_MPTCP_PRIO) + break; + + mp_opt->mp_prio = 1; + mp_opt->backup = *ptr++ & MPTCP_PRIO_BKUP; + pr_debug("MP_PRIO: prio=%d", mp_opt->backup); + break; + case MPTCPOPT_MP_FASTCLOSE: if (opsize != TCPOLEN_MPTCP_FASTCLOSE) break; @@ -313,6 +322,7 @@ void mptcp_get_options(const struct sk_buff *skb, mp_opt->port = 0; mp_opt->rm_addr = 0; mp_opt->dss = 0; + mp_opt->mp_prio = 0; length = (th->doff * 4) - sizeof(struct tcphdr); ptr = (const unsigned char *)(th + 1); @@ -1022,6 +1032,11 @@ void mptcp_incoming_options(struct sock *sk, struct sk_buff *skb) mp_opt.rm_addr = 0; } + if (mp_opt.mp_prio) { + mptcp_pm_mp_prio_received(sk, mp_opt.backup); + mp_opt.mp_prio = 0; + } + if (!mp_opt.dss) return; |