| version 1.134, 2005/03/11 06:16:16 |
version 1.134.2.5, 2005/09/08 21:10:24 |
| Line 146 int udpcksum = 1; |
|
| Line 146 int udpcksum = 1; |
|
| #else |
#else |
| int udpcksum = 0; /* XXX */ |
int udpcksum = 0; /* XXX */ |
| #endif |
#endif |
| int udp_do_loopback_cksum = 0; |
|
| |
|
| struct inpcbtable udbtable; |
struct inpcbtable udbtable; |
| struct udpstat udpstat; |
struct udpstat udpstat; |
| Line 1080 udp_output(struct mbuf *m, ...) |
|
| Line 1079 udp_output(struct mbuf *m, ...) |
|
| /* |
/* |
| * XXX Cache pseudo-header checksum part for |
* XXX Cache pseudo-header checksum part for |
| * XXX "connected" UDP sockets. |
* XXX "connected" UDP sockets. |
| * Maybe skip checksums on loopback interfaces. |
|
| */ |
*/ |
| ui->ui_sum = in_cksum_phdr(ui->ui_src.s_addr, |
ui->ui_sum = in_cksum_phdr(ui->ui_src.s_addr, |
| ui->ui_dst.s_addr, htons((u_int16_t)len + |
ui->ui_dst.s_addr, htons((u_int16_t)len + |
| sizeof(struct udphdr) + IPPROTO_UDP)); |
sizeof(struct udphdr) + IPPROTO_UDP)); |
| if (__predict_true(ro->ro_rt == NULL || |
m->m_pkthdr.csum_flags = M_CSUM_UDPv4; |
| !(ro->ro_rt->rt_ifp->if_flags & |
|
| IFF_LOOPBACK) || |
|
| udp_do_loopback_cksum)) |
|
| m->m_pkthdr.csum_flags = M_CSUM_UDPv4; |
|
| else |
|
| m->m_pkthdr.csum_flags = 0; |
|
| m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum); |
m->m_pkthdr.csum_data = offsetof(struct udphdr, uh_sum); |
| } else |
} else |
| ui->ui_sum = 0; |
ui->ui_sum = 0; |
| Line 1365 udp4_espinudp(m, off, src, so) |
|
| Line 1357 udp4_espinudp(m, off, src, so) |
|
| size_t iphdrlen; |
size_t iphdrlen; |
| struct ip *ip; |
struct ip *ip; |
| struct mbuf *n; |
struct mbuf *n; |
| |
struct m_tag *tag; |
| |
struct udphdr *udphdr; |
| |
u_int16_t sport, dport; |
| |
|
| /* |
/* |
| * Collapse the mbuf chain if the first mbuf is too short |
* Collapse the mbuf chain if the first mbuf is too short |
| Line 1405 udp4_espinudp(m, off, src, so) |
|
| Line 1400 udp4_espinudp(m, off, src, so) |
|
| } |
} |
| |
|
| if (inp->inp_flags & INP_ESPINUDP_NON_IKE) { |
if (inp->inp_flags & INP_ESPINUDP_NON_IKE) { |
| u_int64_t *st = (u_int64_t *)data; |
u_int32_t *st = (u_int32_t *)data; |
| |
|
| if ((len <= sizeof(u_int64_t) + sizeof(struct esp)) |
if ((len <= sizeof(u_int64_t) + sizeof(struct esp)) |
| || (*st != 0)) |
|| ((st[0] | st[1]) != 0)) |
| return 0; /* Normal UDP processing */ |
return 0; /* Normal UDP processing */ |
| |
|
| skip = sizeof(struct udphdr) + sizeof(u_int64_t); |
skip = sizeof(struct udphdr) + sizeof(u_int64_t); |
| } |
} |
| |
|
| /* |
/* |
| |
* Get the UDP ports. They are handled in network |
| |
* order everywhere in IPSEC_NAT_T code. |
| |
*/ |
| |
udphdr = (struct udphdr *)(data - skip); |
| |
sport = udphdr->uh_sport; |
| |
dport = udphdr->uh_dport; |
| |
|
| |
/* |
| * Remove the UDP header (and possibly the non ESP marker) |
* Remove the UDP header (and possibly the non ESP marker) |
| * IP header lendth is iphdrlen |
* IP header lendth is iphdrlen |
| * Before: |
* Before: |
| Line 1447 udp4_espinudp(m, off, src, so) |
|
| Line 1450 udp4_espinudp(m, off, src, so) |
|
| return 0; |
return 0; |
| } |
} |
| |
|
| |
/* |
| |
* Add a PACKET_TAG_IPSEC_NAT_T_PORT tag to remember |
| |
* the source UDP port. This is required if we want |
| |
* to select the right SPD for multiple hosts behind |
| |
* same NAT |
| |
*/ |
| |
if ((tag = m_tag_get(PACKET_TAG_IPSEC_NAT_T_PORTS, |
| |
sizeof(sport) + sizeof(dport), M_DONTWAIT)) == NULL) { |
| |
printf("udp4_espinudp: m_tag_get failed\n"); |
| |
m_freem(n); |
| |
return 0; |
| |
} |
| |
((u_int16_t *)(tag + 1))[0] = sport; |
| |
((u_int16_t *)(tag + 1))[1] = dport; |
| |
m_tag_prepend(n, tag); |
| |
|
| esp4_input(n, iphdrlen); |
esp4_input(n, iphdrlen); |
| |
|
| /* We handled it, it shoudln't be handled by UDP */ |
/* We handled it, it shoudln't be handled by UDP */ |