version 1.70.2.2, 2004/08/03 10:54:43 |
version 1.96.2.2, 2007/10/09 13:44:51 |
Line 68 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 68 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include "opt_mrouting.h" |
#include "opt_mrouting.h" |
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#include <sys/param.h> |
#include <sys/param.h> |
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#include <sys/sysctl.h> |
#include <sys/malloc.h> |
#include <sys/malloc.h> |
#include <sys/mbuf.h> |
#include <sys/mbuf.h> |
#include <sys/socket.h> |
#include <sys/socket.h> |
Line 76 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 77 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <sys/errno.h> |
#include <sys/errno.h> |
#include <sys/systm.h> |
#include <sys/systm.h> |
#include <sys/proc.h> |
#include <sys/proc.h> |
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#include <sys/kauth.h> |
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#include <net/if.h> |
#include <net/if.h> |
#include <net/route.h> |
#include <net/route.h> |
Line 87 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 89 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <netinet/ip_mroute.h> |
#include <netinet/ip_mroute.h> |
#include <netinet/ip_icmp.h> |
#include <netinet/ip_icmp.h> |
#include <netinet/in_pcb.h> |
#include <netinet/in_pcb.h> |
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#include <netinet/in_proto.h> |
#include <netinet/in_var.h> |
#include <netinet/in_var.h> |
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#include <machine/stdarg.h> |
#include <machine/stdarg.h> |
Line 102 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 105 __KERNEL_RCSID(0, "$NetBSD$"); |
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struct inpcbtable rawcbtable; |
struct inpcbtable rawcbtable; |
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int rip_pcbnotify __P((struct inpcbtable *, struct in_addr, |
int rip_pcbnotify(struct inpcbtable *, struct in_addr, |
struct in_addr, int, int, void (*) __P((struct inpcb *, int)))); |
struct in_addr, int, int, void (*)(struct inpcb *, int)); |
int rip_bind __P((struct inpcb *, struct mbuf *)); |
int rip_bind(struct inpcb *, struct mbuf *); |
int rip_connect __P((struct inpcb *, struct mbuf *)); |
int rip_connect(struct inpcb *, struct mbuf *); |
void rip_disconnect __P((struct inpcb *)); |
void rip_disconnect(struct inpcb *); |
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/* |
/* |
* Nominal space allocated to a raw ip socket. |
* Nominal space allocated to a raw ip socket. |
Line 122 void rip_disconnect __P((struct inpcb * |
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Line 125 void rip_disconnect __P((struct inpcb * |
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* Initialize raw connection block q. |
* Initialize raw connection block q. |
*/ |
*/ |
void |
void |
rip_init() |
rip_init(void) |
{ |
{ |
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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; |
struct inpcb *last = 0; |
struct inpcb *last = NULL; |
struct mbuf *opts = 0; |
struct mbuf *n, *opts = NULL; |
struct sockaddr_in ripsrc; |
struct sockaddr_in ripsrc; |
va_list ap; |
va_list ap; |
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Line 150 rip_input(struct mbuf *m, ...) |
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Line 171 rip_input(struct mbuf *m, ...) |
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proto = va_arg(ap, int); |
proto = va_arg(ap, int); |
va_end(ap); |
va_end(ap); |
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ripsrc.sin_family = AF_INET; |
sockaddr_in_init(&ripsrc, &ip->ip_src, 0); |
ripsrc.sin_len = sizeof(struct sockaddr_in); |
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ripsrc.sin_addr = ip->ip_src; |
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ripsrc.sin_port = 0; |
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bzero((caddr_t)ripsrc.sin_zero, sizeof(ripsrc.sin_zero)); |
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/* |
/* |
* XXX Compatibility: programs using raw IP expect ip_len |
* XXX Compatibility: programs using raw IP expect ip_len |
* 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 176 rip_input(struct mbuf *m, ...) |
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Line 194 rip_input(struct mbuf *m, ...) |
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if (!in_nullhost(inp->inp_faddr) && |
if (!in_nullhost(inp->inp_faddr) && |
!in_hosteq(inp->inp_faddr, ip->ip_src)) |
!in_hosteq(inp->inp_faddr, ip->ip_src)) |
continue; |
continue; |
if (last) { |
if (last == NULL) |
struct mbuf *n; |
; |
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#if defined(IPSEC) || defined(FAST_IPSEC) |
#if defined(IPSEC) || defined(FAST_IPSEC) |
/* check AH/ESP integrity. */ |
/* check AH/ESP integrity. */ |
if (ipsec4_in_reject_so(m, last->inp_socket)) { |
else if (ipsec4_in_reject_so(m, last->inp_socket)) { |
ipsecstat.in_polvio++; |
ipsecstat.in_polvio++; |
/* do not inject data to pcb */ |
/* do not inject data to pcb */ |
} else |
} |
#endif /*IPSEC*/ |
#endif /*IPSEC*/ |
if ((n = m_copy(m, 0, (int)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); |
opts = NULL; |
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; |
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} |
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} |
} |
last = inp; |
last = inp; |
} |
} |
#if defined(IPSEC) || defined(FAST_IPSEC) |
#if defined(IPSEC) || defined(FAST_IPSEC) |
/* check AH/ESP integrity. */ |
/* check AH/ESP integrity. */ |
if (last && ipsec4_in_reject_so(m, last->inp_socket)) { |
if (last != NULL && ipsec4_in_reject_so(m, last->inp_socket)) { |
m_freem(m); |
m_freem(m); |
ipsecstat.in_polvio++; |
ipsecstat.in_polvio++; |
ipstat.ips_delivered--; |
ipstat.ips_delivered--; |
/* do not inject data to pcb */ |
/* do not inject data to pcb */ |
} else |
} else |
#endif /*IPSEC*/ |
#endif /*IPSEC*/ |
if (last) { |
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); |
icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL, |
if (sbappendaddr(&last->inp_socket->so_rcv, |
0, 0); |
sintosa(&ripsrc), m, opts) == 0) { |
ipstat.ips_noproto++; |
m_freem(m); |
ipstat.ips_delivered--; |
if (opts) |
} else |
m_freem(opts); |
m_freem(m); |
} else |
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sorwakeup(last->inp_socket); |
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} else { |
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if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) { |
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icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL, |
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0, 0); |
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ipstat.ips_noproto++; |
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ipstat.ips_delivered--; |
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} else |
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m_freem(m); |
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} |
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return; |
return; |
} |
} |
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int |
int |
rip_pcbnotify(table, faddr, laddr, proto, errno, notify) |
rip_pcbnotify(struct inpcbtable *table, |
struct inpcbtable *table; |
struct in_addr faddr, struct in_addr laddr, int proto, int errno, |
struct in_addr faddr, laddr; |
void (*notify)(struct inpcb *, int)) |
int proto; |
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int errno; |
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void (*notify) __P((struct inpcb *, int)); |
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{ |
{ |
struct inpcb *inp, *ninp; |
struct inpcb *inp, *ninp; |
int nmatch; |
int nmatch; |
Line 266 rip_pcbnotify(table, faddr, laddr, proto |
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Line 259 rip_pcbnotify(table, faddr, laddr, proto |
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} |
} |
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void * |
void * |
rip_ctlinput(cmd, sa, v) |
rip_ctlinput(int cmd, const struct sockaddr *sa, void *v) |
int cmd; |
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struct sockaddr *sa; |
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void *v; |
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{ |
{ |
struct ip *ip = v; |
struct ip *ip = v; |
void (*notify) __P((struct inpcb *, int)) = in_rtchange; |
void (*notify)(struct inpcb *, int) = in_rtchange; |
int errno; |
int errno; |
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if (sa->sa_family != AF_INET || |
if (sa->sa_family != AF_INET || |
Line 288 rip_ctlinput(cmd, sa, v) |
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Line 278 rip_ctlinput(cmd, sa, v) |
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else if (errno == 0) |
else if (errno == 0) |
return NULL; |
return NULL; |
if (ip) { |
if (ip) { |
rip_pcbnotify(&rawcbtable, satosin(sa)->sin_addr, |
rip_pcbnotify(&rawcbtable, satocsin(sa)->sin_addr, |
ip->ip_src, ip->ip_p, errno, notify); |
ip->ip_src, ip->ip_p, errno, notify); |
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/* XXX mapped address case */ |
/* XXX mapped address case */ |
} else |
} else |
in_pcbnotifyall(&rawcbtable, satosin(sa)->sin_addr, errno, |
in_pcbnotifyall(&rawcbtable, satocsin(sa)->sin_addr, errno, |
notify); |
notify); |
return NULL; |
return NULL; |
} |
} |
Line 383 rip_output(struct mbuf *m, ...) |
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Line 373 rip_output(struct mbuf *m, ...) |
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* Raw IP socket option processing. |
* Raw IP socket option processing. |
*/ |
*/ |
int |
int |
rip_ctloutput(op, so, level, optname, m) |
rip_ctloutput(int op, struct socket *so, int level, int optname, |
int op; |
struct mbuf **m) |
struct socket *so; |
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int level, optname; |
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struct mbuf **m; |
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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 421 rip_ctloutput(op, so, level, optname, m) |
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Line 416 rip_ctloutput(op, so, level, optname, m) |
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case MRT_ADD_MFC: |
case MRT_ADD_MFC: |
case MRT_DEL_MFC: |
case MRT_DEL_MFC: |
case MRT_ASSERT: |
case MRT_ASSERT: |
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case MRT_API_CONFIG: |
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case MRT_ADD_BW_UPCALL: |
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case MRT_DEL_BW_UPCALL: |
error = ip_mrouter_set(so, optname, m); |
error = ip_mrouter_set(so, optname, m); |
break; |
break; |
#endif |
#endif |
Line 434 rip_ctloutput(op, so, level, optname, m) |
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Line 432 rip_ctloutput(op, so, level, optname, m) |
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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 |
case MRT_VERSION: |
case MRT_VERSION: |
case MRT_ASSERT: |
case MRT_ASSERT: |
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case MRT_API_SUPPORT: |
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case MRT_API_CONFIG: |
error = ip_mrouter_get(so, optname, m); |
error = ip_mrouter_get(so, optname, m); |
break; |
break; |
#endif |
#endif |
Line 453 rip_ctloutput(op, so, level, optname, m) |
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Line 450 rip_ctloutput(op, so, level, optname, m) |
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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 |
rip_bind(inp, nam) |
rip_bind(struct inpcb *inp, struct mbuf *nam) |
struct inpcb *inp; |
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struct mbuf *nam; |
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{ |
{ |
struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); |
struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); |
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Line 478 rip_bind(inp, nam) |
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Line 477 rip_bind(inp, nam) |
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} |
} |
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int |
int |
rip_connect(inp, nam) |
rip_connect(struct inpcb *inp, struct mbuf *nam) |
struct inpcb *inp; |
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struct mbuf *nam; |
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{ |
{ |
struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); |
struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); |
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Line 496 rip_connect(inp, nam) |
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Line 493 rip_connect(inp, nam) |
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} |
} |
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void |
void |
rip_disconnect(inp) |
rip_disconnect(struct inpcb *inp) |
struct inpcb *inp; |
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{ |
{ |
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inp->inp_faddr = zeroin_addr; |
inp->inp_faddr = zeroin_addr; |
Line 508 u_long rip_recvspace = RIPRCVQ; |
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Line 504 u_long rip_recvspace = RIPRCVQ; |
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/*ARGSUSED*/ |
/*ARGSUSED*/ |
int |
int |
rip_usrreq(so, req, m, nam, control, l) |
rip_usrreq(struct socket *so, int req, |
struct socket *so; |
struct mbuf *m, struct mbuf *nam, struct mbuf *control, struct lwp *l) |
int req; |
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struct mbuf *m, *nam, *control; |
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struct lwp *l; |
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{ |
{ |
struct inpcb *inp; |
struct inpcb *inp; |
struct proc *p; |
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int s; |
int s; |
int error = 0; |
int error = 0; |
#ifdef MROUTING |
#ifdef MROUTING |
extern struct socket *ip_mrouter; |
extern struct socket *ip_mrouter; |
#endif |
#endif |
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p = l ? l->l_proc : NULL; |
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if (req == PRU_CONTROL) |
if (req == PRU_CONTROL) |
return (in_control(so, (long)m, (caddr_t)nam, |
return (in_control(so, (long)m, (void *)nam, |
(struct ifnet *)control, p)); |
(struct ifnet *)control, l)); |
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s = splsoftnet(); |
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if (req == PRU_PURGEIF) { |
if (req == PRU_PURGEIF) { |
in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control); |
in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control); |
in_purgeif((struct ifnet *)control); |
in_purgeif((struct ifnet *)control); |
in_pcbpurgeif(&rawcbtable, (struct ifnet *)control); |
in_pcbpurgeif(&rawcbtable, (struct ifnet *)control); |
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splx(s); |
return (0); |
return (0); |
} |
} |
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s = splsoftnet(); |
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inp = sotoinpcb(so); |
inp = sotoinpcb(so); |
#ifdef DIAGNOSTIC |
#ifdef DIAGNOSTIC |
if (req != PRU_SEND && req != PRU_SENDOOB && control) |
if (req != PRU_SEND && req != PRU_SENDOOB && control) |
Line 552 rip_usrreq(so, req, m, nam, control, l) |
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Line 545 rip_usrreq(so, req, m, nam, control, l) |
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error = EISCONN; |
error = EISCONN; |
break; |
break; |
} |
} |
if (p == 0 || (error = suser(p->p_ucred, &p->p_acflag))) { |
|
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if (l == NULL) { |
error = EACCES; |
error = EACCES; |
break; |
break; |
} |
} |
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/* XXX: raw socket permissions are checked in socreate() */ |
|
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if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { |
if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { |
error = soreserve(so, rip_sendspace, rip_recvspace); |
error = soreserve(so, rip_sendspace, rip_recvspace); |
if (error) |
if (error) |
|
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splx(s); |
splx(s); |
return (error); |
return (error); |
} |
} |
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SYSCTL_SETUP(sysctl_net_inet_raw_setup, "sysctl net.inet.raw subtree setup") |
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{ |
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|
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sysctl_createv(clog, 0, NULL, NULL, |
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CTLFLAG_PERMANENT, |
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CTLTYPE_NODE, "net", NULL, |
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NULL, 0, NULL, 0, |
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CTL_NET, CTL_EOL); |
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sysctl_createv(clog, 0, NULL, NULL, |
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CTLFLAG_PERMANENT, |
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CTLTYPE_NODE, "inet", NULL, |
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NULL, 0, NULL, 0, |
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CTL_NET, PF_INET, CTL_EOL); |
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sysctl_createv(clog, 0, NULL, NULL, |
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CTLFLAG_PERMANENT, |
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CTLTYPE_NODE, "raw", |
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SYSCTL_DESCR("Raw IPv4 settings"), |
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NULL, 0, NULL, 0, |
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CTL_NET, PF_INET, IPPROTO_RAW, CTL_EOL); |
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|
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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("Raw IPv4 control block list"), |
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sysctl_inpcblist, 0, &rawcbtable, 0, |
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CTL_NET, PF_INET, IPPROTO_RAW, |
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CTL_CREATE, CTL_EOL); |
|
} |