version 1.130, 2005/02/12 12:31:07 |
version 1.135, 2005/04/18 21:50:25 |
Line 146 int udpcksum = 1; |
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Line 146 int udpcksum = 1; |
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#else |
#else |
int udpcksum = 0; /* XXX */ |
int udpcksum = 0; /* XXX */ |
#endif |
#endif |
int udp_do_loopback_cksum = 0; |
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struct inpcbtable udbtable; |
struct inpcbtable udbtable; |
struct udpstat udpstat; |
struct udpstat udpstat; |
Line 932 udp_ctlinput(int cmd, struct sockaddr *s |
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Line 931 udp_ctlinput(int cmd, struct sockaddr *s |
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} |
} |
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int |
int |
udp_ctloutput(op, so, level, optname, mp) |
udp_ctloutput(op, so, level, optname, mp) |
int op; |
int op; |
struct socket *so; |
struct socket *so; |
int level, optname; |
int level, optname; |
Line 982 udp_ctloutput(op, so, level, optname, mp |
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Line 981 udp_ctloutput(op, so, level, optname, mp |
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error = EINVAL; |
error = EINVAL; |
goto end; |
goto end; |
} |
} |
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switch(*mtod(m, int *)) { |
switch(*mtod(m, int *)) { |
#ifdef IPSEC_NAT_T |
#ifdef IPSEC_NAT_T |
case 0: |
case 0: |
Line 993 udp_ctloutput(op, so, level, optname, mp |
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Line 992 udp_ctloutput(op, so, level, optname, mp |
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inp->inp_flags &= ~INP_ESPINUDP_ALL; |
inp->inp_flags &= ~INP_ESPINUDP_ALL; |
inp->inp_flags |= INP_ESPINUDP; |
inp->inp_flags |= INP_ESPINUDP; |
break; |
break; |
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case UDP_ENCAP_ESPINUDP_NON_IKE: |
case UDP_ENCAP_ESPINUDP_NON_IKE: |
inp->inp_flags &= ~INP_ESPINUDP_ALL; |
inp->inp_flags &= ~INP_ESPINUDP_ALL; |
inp->inp_flags |= INP_ESPINUDP_NON_IKE; |
inp->inp_flags |= INP_ESPINUDP_NON_IKE; |
Line 1017 udp_ctloutput(op, so, level, optname, mp |
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Line 1016 udp_ctloutput(op, so, level, optname, mp |
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error = EINVAL; |
error = EINVAL; |
goto end; |
goto end; |
break; |
break; |
} |
} |
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end: |
end: |
splx(s); |
splx(s); |
return error; |
return error; |
} |
} |
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int |
int |
udp_output(struct mbuf *m, ...) |
udp_output(struct mbuf *m, ...) |
Line 1080 udp_output(struct mbuf *m, ...) |
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Line 1079 udp_output(struct mbuf *m, ...) |
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/* |
/* |
* 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. |
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*/ |
*/ |
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 & |
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IFF_LOOPBACK) || |
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udp_do_loopback_cksum)) |
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m->m_pkthdr.csum_flags = M_CSUM_UDPv4; |
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else |
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m->m_pkthdr.csum_flags = 0; |
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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 1334 SYSCTL_SETUP(sysctl_net_inet_udp_setup, |
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Line 1326 SYSCTL_SETUP(sysctl_net_inet_udp_setup, |
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NULL, 0, &udp_do_loopback_cksum, 0, |
NULL, 0, &udp_do_loopback_cksum, 0, |
CTL_NET, PF_INET, IPPROTO_UDP, UDPCTL_LOOPBACKCKSUM, |
CTL_NET, PF_INET, IPPROTO_UDP, UDPCTL_LOOPBACKCKSUM, |
CTL_EOL); |
CTL_EOL); |
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sysctl_createv(clog, 0, NULL, NULL, |
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CTLFLAG_PERMANENT, |
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CTLTYPE_STRUCT, "pcblist", |
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SYSCTL_DESCR("UDP protocol control block list"), |
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sysctl_inpcblist, 0, &udbtable, 0, |
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CTL_NET, PF_INET, IPPROTO_UDP, CTL_CREATE, |
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CTL_EOL); |
} |
} |
#endif |
#endif |
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Line 1359 udp4_espinudp(m, off, src, so) |
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Line 1358 udp4_espinudp(m, off, src, so) |
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struct ip *ip; |
struct ip *ip; |
struct mbuf *n; |
struct mbuf *n; |
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/* |
/* |
* Collapse the mbuf chain if the first mbuf is too short |
* Collapse the mbuf chain if the first mbuf is too short |
* The longest case is: UDP + non ESP marker + ESP |
* The longest case is: UDP + non ESP marker + ESP |
*/ |
*/ |
Line 1374 udp4_espinudp(m, off, src, so) |
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Line 1373 udp4_espinudp(m, off, src, so) |
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} |
} |
} |
} |
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len = m->m_len - off; |
len = m->m_len - off; |
data = mtod(m, caddr_t) + off; |
data = mtod(m, caddr_t) + off; |
inp = sotoinpcb(so); |
inp = sotoinpcb(so); |
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Line 1383 udp4_espinudp(m, off, src, so) |
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Line 1382 udp4_espinudp(m, off, src, so) |
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return 1; |
return 1; |
} |
} |
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/* |
/* |
* Check that the payload is long enough to hold |
* Check that the payload is long enough to hold |
* an ESP header and compute the length of encapsulation |
* an ESP header and compute the length of encapsulation |
* header to remove |
* header to remove |
*/ |
*/ |
if (inp->inp_flags & INP_ESPINUDP) { |
if (inp->inp_flags & INP_ESPINUDP) { |
u_int32_t *st = (u_int32_t *)data; |
u_int32_t *st = (u_int32_t *)data; |
Line 1403 udp4_espinudp(m, off, src, so) |
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Line 1402 udp4_espinudp(m, off, src, so) |
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if ((len <= sizeof(u_int64_t) + sizeof(struct esp)) |
if ((len <= sizeof(u_int64_t) + sizeof(struct esp)) |
|| (*st != 0)) |
|| (*st != 0)) |
return 0; /* Normal UDP processing */ |
return 0; /* Normal UDP processing */ |
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skip = sizeof(struct udphdr) + sizeof(u_int64_t); |
skip = sizeof(struct udphdr) + sizeof(u_int64_t); |
} |
} |
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/* |
/* |
* 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: |
* <--- off ---> |
* <--- off ---> |
* +----+------+-----+ |
* +----+------+-----+ |
* | IP | UDP | ESP | |
* | IP | UDP | ESP | |
Line 1431 udp4_espinudp(m, off, src, so) |
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Line 1430 udp4_espinudp(m, off, src, so) |
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ip->ip_p = IPPROTO_ESP; |
ip->ip_p = IPPROTO_ESP; |
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/* |
/* |
* Copy the mbuf to avoid multiple free, as both |
* Copy the mbuf to avoid multiple free, as both |
* esp4_input (which we call) and udp_input (which |
* esp4_input (which we call) and udp_input (which |
* called us) free the mbuf. |
* called us) free the mbuf. |
*/ |
*/ |
if ((n = m_dup(m, 0, M_COPYALL, M_DONTWAIT)) == NULL) { |
if ((n = m_dup(m, 0, M_COPYALL, M_DONTWAIT)) == NULL) { |