version 1.96.2.1, 2007/06/08 14:17:47 |
version 1.97.8.3, 2008/03/23 02:05:06 |
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/* $NetBSD$ */ |
/* raw_ip.c,v 1.97.8.2 2008/01/09 01:57:29 matt Exp */ |
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/* |
/* |
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
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*/ |
*/ |
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#include <sys/cdefs.h> |
#include <sys/cdefs.h> |
__KERNEL_RCSID(0, "$NetBSD$"); |
__KERNEL_RCSID(0, "raw_ip.c,v 1.97.8.2 2008/01/09 01:57:29 matt Exp"); |
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#include "opt_inet.h" |
#include "opt_inet.h" |
#include "opt_ipsec.h" |
#include "opt_ipsec.h" |
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in_pcbinit(&rawcbtable, 1, 1); |
in_pcbinit(&rawcbtable, 1, 1); |
} |
} |
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static void |
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rip_sbappendaddr(struct inpcb *last, struct ip *ip, const struct sockaddr *sa, |
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int hlen, struct mbuf *opts, struct mbuf *n) |
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{ |
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if (last->inp_flags & INP_NOHEADER) |
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m_adj(n, hlen); |
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if (last->inp_flags & INP_CONTROLOPTS || |
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last->inp_socket->so_options & SO_TIMESTAMP) |
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ip_savecontrol(last, &opts, ip, n); |
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if (sbappendaddr(&last->inp_socket->so_rcv, sa, n, opts) == 0) { |
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/* should notify about lost packet */ |
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m_freem(n); |
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if (opts) |
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m_freem(opts); |
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} else |
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sorwakeup(last->inp_socket); |
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} |
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/* |
/* |
* Setup generic address and protocol structures |
* Setup generic address and protocol structures |
* for raw_input routine, then pass them along with |
* for raw_input routine, then pass them along with |
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void |
void |
rip_input(struct mbuf *m, ...) |
rip_input(struct mbuf *m, ...) |
{ |
{ |
int proto; |
int hlen, proto; |
struct ip *ip = mtod(m, struct ip *); |
struct ip *ip = mtod(m, struct ip *); |
struct inpcb_hdr *inph; |
struct inpcb_hdr *inph; |
struct inpcb *inp; |
struct inpcb *inp; |
Line 160 rip_input(struct mbuf *m, ...) |
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Line 178 rip_input(struct mbuf *m, ...) |
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* XXX to have the header length subtracted, and in host order. |
* XXX to have the header length subtracted, and in host order. |
* XXX ip_off is also expected to be host order. |
* XXX ip_off is also expected to be host order. |
*/ |
*/ |
ip->ip_len = ntohs(ip->ip_len) - (ip->ip_hl << 2); |
hlen = ip->ip_hl << 2; |
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ip->ip_len = ntohs(ip->ip_len) - hlen; |
NTOHS(ip->ip_off); |
NTOHS(ip->ip_off); |
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CIRCLEQ_FOREACH(inph, &rawcbtable.inpt_queue, inph_queue) { |
CIRCLEQ_FOREACH(inph, &rawcbtable.inpt_queue, inph_queue) { |
Line 184 rip_input(struct mbuf *m, ...) |
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Line 203 rip_input(struct mbuf *m, ...) |
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/* do not inject data to pcb */ |
/* do not inject data to pcb */ |
} |
} |
#endif /*IPSEC*/ |
#endif /*IPSEC*/ |
else if ((n = m_copy(m, 0, M_COPYALL)) != NULL) { |
else if ((n = m_copypacket(m, M_DONTWAIT)) != NULL) { |
if (last->inp_flags & INP_CONTROLOPTS || |
rip_sbappendaddr(last, ip, sintosa(&ripsrc), hlen, opts, |
last->inp_socket->so_options & SO_TIMESTAMP) |
n); |
ip_savecontrol(last, &opts, ip, n); |
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if (sbappendaddr(&last->inp_socket->so_rcv, |
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sintosa(&ripsrc), n, opts) == 0) { |
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/* should notify about lost packet */ |
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m_freem(n); |
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if (opts) |
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m_freem(opts); |
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} else |
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sorwakeup(last->inp_socket); |
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opts = NULL; |
opts = NULL; |
} |
} |
last = inp; |
last = inp; |
Line 209 rip_input(struct mbuf *m, ...) |
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Line 219 rip_input(struct mbuf *m, ...) |
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/* do not inject data to pcb */ |
/* do not inject data to pcb */ |
} else |
} else |
#endif /*IPSEC*/ |
#endif /*IPSEC*/ |
if (last != NULL) { |
if (last != NULL) |
if (last->inp_flags & INP_CONTROLOPTS || |
rip_sbappendaddr(last, ip, sintosa(&ripsrc), hlen, opts, m); |
last->inp_socket->so_options & SO_TIMESTAMP) |
else if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) { |
ip_savecontrol(last, &opts, ip, m); |
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if (sbappendaddr(&last->inp_socket->so_rcv, |
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sintosa(&ripsrc), m, opts) == 0) { |
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m_freem(m); |
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if (opts) |
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m_freem(opts); |
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} else |
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sorwakeup(last->inp_socket); |
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} else if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) { |
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icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL, |
icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL, |
0, 0); |
0, 0); |
ipstat.ips_noproto++; |
ipstat.ips_noproto++; |
Line 357 rip_output(struct mbuf *m, ...) |
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Line 358 rip_output(struct mbuf *m, ...) |
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} |
} |
HTONS(ip->ip_len); |
HTONS(ip->ip_len); |
HTONS(ip->ip_off); |
HTONS(ip->ip_off); |
if (ip->ip_id == 0) |
if (ip->ip_id != 0 || m->m_pkthdr.len < IP_MINFRAGSIZE) |
ip->ip_id = ip_newid(); |
flags |= IP_NOIPNEWID; |
opts = NULL; |
opts = NULL; |
/* XXX prevent ip_output from overwriting header fields */ |
/* XXX prevent ip_output from overwriting header fields */ |
flags |= IP_RAWOUTPUT; |
flags |= IP_RAWOUTPUT; |
Line 378 rip_ctloutput(int op, struct socket *so, |
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Line 379 rip_ctloutput(int op, struct socket *so, |
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struct inpcb *inp = sotoinpcb(so); |
struct inpcb *inp = sotoinpcb(so); |
int error = 0; |
int error = 0; |
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if (level != IPPROTO_IP) { |
if (level == SOL_SOCKET && optname == SO_NOHEADER) { |
error = ENOPROTOOPT; |
if (op == PRCO_GETOPT) { |
if (op == PRCO_SETOPT && *m != 0) |
*m = m_intopt(so, |
(void) m_free(*m); |
(inp->inp_flags & INP_NOHEADER) ? 1 : 0); |
} else switch (op) { |
return 0; |
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} else if (*m == NULL || (*m)->m_len != sizeof(int)) |
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error = EINVAL; |
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else if (*mtod(*m, int *)) { |
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inp->inp_flags &= ~INP_HDRINCL; |
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inp->inp_flags |= INP_NOHEADER; |
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} else |
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inp->inp_flags &= ~INP_NOHEADER; |
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goto free_m; |
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} else if (level != IPPROTO_IP) |
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return ip_ctloutput(op, so, level, optname, m); |
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switch (op) { |
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case PRCO_SETOPT: |
case PRCO_SETOPT: |
switch (optname) { |
switch (optname) { |
case IP_HDRINCL: |
case IP_HDRINCL: |
if (*m == 0 || (*m)->m_len < sizeof (int)) |
if (*m == NULL || (*m)->m_len != sizeof(int)) |
error = EINVAL; |
error = EINVAL; |
else { |
else if (*mtod(*m, int *)) |
if (*mtod(*m, int *)) |
inp->inp_flags |= INP_HDRINCL; |
inp->inp_flags |= INP_HDRINCL; |
else |
else |
inp->inp_flags &= ~INP_HDRINCL; |
inp->inp_flags &= ~INP_HDRINCL; |
goto free_m; |
} |
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if (*m != 0) |
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(void) m_free(*m); |
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break; |
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#ifdef MROUTING |
#ifdef MROUTING |
case MRT_INIT: |
case MRT_INIT: |
Line 423 rip_ctloutput(int op, struct socket *so, |
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Line 432 rip_ctloutput(int op, struct socket *so, |
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case PRCO_GETOPT: |
case PRCO_GETOPT: |
switch (optname) { |
switch (optname) { |
case IP_HDRINCL: |
case IP_HDRINCL: |
*m = m_get(M_WAIT, MT_SOOPTS); |
*m = m_intopt(so, inp->inp_flags & INP_HDRINCL ? 1 : 0); |
MCLAIM((*m), so->so_mowner); |
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(*m)->m_len = sizeof (int); |
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*mtod(*m, int *) = inp->inp_flags & INP_HDRINCL ? 1 : 0; |
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break; |
break; |
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#ifdef MROUTING |
#ifdef MROUTING |
Line 444 rip_ctloutput(int op, struct socket *so, |
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Line 450 rip_ctloutput(int op, struct socket *so, |
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} |
} |
break; |
break; |
} |
} |
return (error); |
return error; |
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free_m: |
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if (op == PRCO_SETOPT && *m != NULL) |
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(void)m_free(*m); |
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return error; |
} |
} |
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int |
int |