diff options
Diffstat (limited to 'sys/netinet/tcp_subr.c')
| -rw-r--r-- | sys/netinet/tcp_subr.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/sys/netinet/tcp_subr.c b/sys/netinet/tcp_subr.c index 58395f5..8816bc6 100644 --- a/sys/netinet/tcp_subr.c +++ b/sys/netinet/tcp_subr.c @@ -1661,13 +1661,13 @@ tcp_twstart(tp) so->so_pcb = NULL; tw->tw_cred = crhold(so->so_cred); tw->tw_so_options = so->so_options; + if (acknow) + tcp_twrespond(tw, so, NULL, TH_ACK); sotryfree(so); inp->inp_socket = NULL; inp->inp_ppcb = (caddr_t)tw; inp->inp_vflag |= INP_TIMEWAIT; tcp_timer_2msl_reset(tw, tw_time); - if (acknow) - tcp_twrespond(tw, TH_ACK); INP_UNLOCK(inp); } @@ -1693,8 +1693,13 @@ tcp_twclose(struct tcptw *tw, int reuse) return (NULL); } +/* + * One of so and msrc must be non-NULL for use by the MAC Framework to + * construct a label for ay resulting packet. + */ int -tcp_twrespond(struct tcptw *tw, int flags) +tcp_twrespond(struct tcptw *tw, struct socket *so, struct mbuf *msrc, + int flags) { struct inpcb *inp = tw->tw_inpcb; struct tcphdr *th; @@ -1708,11 +1713,21 @@ tcp_twrespond(struct tcptw *tw, int flags) int isipv6 = inp->inp_inc.inc_isipv6; #endif + KASSERT(so != NULL || msrc != NULL, + ("tcp_twrespond: so and msrc NULL")); + m = m_gethdr(M_DONTWAIT, MT_HEADER); if (m == NULL) return (ENOBUFS); m->m_data += max_linkhdr; +#ifdef MAC + if (so != NULL) + mac_create_mbuf_from_socket(so, m); + else + mac_create_mbuf_netlayer(msrc, m); +#endif + #ifdef INET6 if (isipv6) { hdrlen = sizeof(struct ip6_hdr) + sizeof(struct tcphdr); |
