diff options
Diffstat (limited to 'sys/netinet/in_gif.c')
| -rw-r--r-- | sys/netinet/in_gif.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sys/netinet/in_gif.c b/sys/netinet/in_gif.c index 0eae228..cc6b64d 100644 --- a/sys/netinet/in_gif.c +++ b/sys/netinet/in_gif.c @@ -100,6 +100,7 @@ in_gif_output(ifp, family, m) struct sockaddr_in *sin_src = (struct sockaddr_in *)sc->gif_psrc; struct sockaddr_in *sin_dst = (struct sockaddr_in *)sc->gif_pdst; struct ip iphdr; /* capsule IP header, host byte ordered */ + struct etherip_header eiphdr; int proto, error; u_int8_t tos; @@ -142,6 +143,20 @@ in_gif_output(ifp, family, m) break; } #endif /* INET6 */ + case AF_LINK: + proto = IPPROTO_ETHERIP; + eiphdr.eip_ver = ETHERIP_VERSION & ETHERIP_VER_VERS_MASK; + eiphdr.eip_pad = 0; + /* prepend Ethernet-in-IP header */ + M_PREPEND(m, sizeof(struct etherip_header), M_DONTWAIT); + if (m && m->m_len < sizeof(struct etherip_header)) + m = m_pullup(m, sizeof(struct etherip_header)); + if (m == NULL) + return ENOBUFS; + bcopy(&eiphdr, mtod(m, struct etherip_header *), + sizeof(struct etherip_header)); + break; + default: #ifdef DEBUG printf("in_gif_output: warning: unknown family %d passed\n", @@ -302,6 +317,10 @@ in_gif_input(m, off) break; } #endif /* INET6 */ + case IPPROTO_ETHERIP: + af = AF_LINK; + break; + default: ipstat.ips_nogif++; m_freem(m); |
