version 1.62, 2002/08/14 00:23:33 |
version 1.92, 2006/09/19 21:42:30 |
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* 2. Redistributions in binary form must reproduce the above copyright |
* 2. Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* documentation and/or other materials provided with the distribution. |
* 3. All advertising materials mentioning features or use of this software |
* 3. Neither the name of the University nor the names of its contributors |
* must display the following acknowledgement: |
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* This product includes software developed by the University of |
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* California, Berkeley and its contributors. |
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* 4. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
* may be used to endorse or promote products derived from this software |
* without specific prior written permission. |
* without specific prior written permission. |
* |
* |
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#include <sys/cdefs.h> |
#include <sys/cdefs.h> |
__KERNEL_RCSID(0, "$NetBSD$"); |
__KERNEL_RCSID(0, "$NetBSD$"); |
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#include "opt_inet.h" |
#include "opt_ipsec.h" |
#include "opt_ipsec.h" |
#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 79 __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 90 __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 98 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 98 __KERNEL_RCSID(0, "$NetBSD$"); |
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#include <netinet6/ipsec.h> |
#include <netinet6/ipsec.h> |
#endif /*IPSEC*/ |
#endif /*IPSEC*/ |
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#ifdef FAST_IPSEC |
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#include <netipsec/ipsec.h> |
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#include <netipsec/ipsec_var.h> /* XXX ipsecstat namespace */ |
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#endif /* FAST_IPSEC*/ |
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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 120 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 struct sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET }; |
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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 |
* mbuf chain. |
* mbuf chain. |
*/ |
*/ |
void |
void |
#if __STDC__ |
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rip_input(struct mbuf *m, ...) |
rip_input(struct mbuf *m, ...) |
#else |
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rip_input(m, va_alist) |
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struct mbuf *m; |
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va_dcl |
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#endif |
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{ |
{ |
int off, proto; |
int proto; |
struct ip *ip = mtod(m, struct ip *); |
struct ip *ip = mtod(m, struct ip *); |
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struct inpcb_hdr *inph; |
struct inpcb *inp; |
struct inpcb *inp; |
struct inpcb *last = 0; |
struct inpcb *last = 0; |
struct mbuf *opts = 0; |
struct mbuf *opts = 0; |
Line 151 rip_input(m, va_alist) |
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Line 149 rip_input(m, va_alist) |
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va_list ap; |
va_list ap; |
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va_start(ap, m); |
va_start(ap, m); |
off = va_arg(ap, int); |
(void)va_arg(ap, int); /* ignore value, advance ap */ |
proto = va_arg(ap, int); |
proto = va_arg(ap, int); |
va_end(ap); |
va_end(ap); |
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Line 169 rip_input(m, va_alist) |
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Line 167 rip_input(m, va_alist) |
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ip->ip_len = ntohs(ip->ip_len) - (ip->ip_hl << 2); |
ip->ip_len = ntohs(ip->ip_len) - (ip->ip_hl << 2); |
NTOHS(ip->ip_off); |
NTOHS(ip->ip_off); |
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CIRCLEQ_FOREACH(inp, &rawcbtable.inpt_queue, inp_queue) { |
CIRCLEQ_FOREACH(inph, &rawcbtable.inpt_queue, inph_queue) { |
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inp = (struct inpcb *)inph; |
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if (inp->inp_af != AF_INET) |
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continue; |
if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) |
if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) |
continue; |
continue; |
if (!in_nullhost(inp->inp_laddr) && |
if (!in_nullhost(inp->inp_laddr) && |
Line 181 rip_input(m, va_alist) |
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Line 182 rip_input(m, va_alist) |
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if (last) { |
if (last) { |
struct mbuf *n; |
struct mbuf *n; |
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#ifdef IPSEC |
#if defined(IPSEC) || defined(FAST_IPSEC) |
/* check AH/ESP integrity. */ |
/* check AH/ESP integrity. */ |
if (ipsec4_in_reject_so(m, last->inp_socket)) { |
if (ipsec4_in_reject_so(m, last->inp_socket)) { |
ipsecstat.in_polvio++; |
ipsecstat.in_polvio++; |
Line 205 rip_input(m, va_alist) |
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Line 206 rip_input(m, va_alist) |
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} |
} |
last = inp; |
last = inp; |
} |
} |
#ifdef 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 && ipsec4_in_reject_so(m, last->inp_socket)) { |
m_freem(m); |
m_freem(m); |
Line 238 rip_input(m, va_alist) |
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Line 239 rip_input(m, va_alist) |
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} |
} |
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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; |
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nmatch = 0; |
nmatch = 0; |
for (inp = CIRCLEQ_FIRST(&table->inpt_queue); |
for (inp = (struct inpcb *)CIRCLEQ_FIRST(&table->inpt_queue); |
inp != (struct inpcb *)&table->inpt_queue; |
inp != (struct inpcb *)&table->inpt_queue; |
inp = ninp) { |
inp = ninp) { |
ninp = inp->inp_queue.cqe_next; |
ninp = (struct inpcb *)inp->inp_queue.cqe_next; |
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if (inp->inp_af != AF_INET) |
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continue; |
if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) |
if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) |
continue; |
continue; |
if (in_hosteq(inp->inp_faddr, faddr) && |
if (in_hosteq(inp->inp_faddr, faddr) && |
Line 266 rip_pcbnotify(table, faddr, laddr, proto |
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Line 266 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, 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 303 rip_ctlinput(cmd, sa, v) |
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Line 300 rip_ctlinput(cmd, sa, v) |
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* Tack on options user may have setup with control call. |
* Tack on options user may have setup with control call. |
*/ |
*/ |
int |
int |
#if __STDC__ |
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rip_output(struct mbuf *m, ...) |
rip_output(struct mbuf *m, ...) |
#else |
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rip_output(m, va_alist) |
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struct mbuf *m; |
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va_dcl |
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#endif |
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{ |
{ |
struct inpcb *inp; |
struct inpcb *inp; |
struct ip *ip; |
struct ip *ip; |
Line 334 rip_output(m, va_alist) |
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Line 325 rip_output(m, va_alist) |
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m_freem(m); |
m_freem(m); |
return (EMSGSIZE); |
return (EMSGSIZE); |
} |
} |
M_PREPEND(m, sizeof(struct ip), M_WAIT); |
M_PREPEND(m, sizeof(struct ip), M_DONTWAIT); |
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if (!m) |
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return (ENOBUFS); |
ip = mtod(m, struct ip *); |
ip = mtod(m, struct ip *); |
ip->ip_tos = 0; |
ip->ip_tos = 0; |
ip->ip_off = htons(0); |
ip->ip_off = htons(0); |
Line 350 rip_output(m, va_alist) |
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Line 343 rip_output(m, va_alist) |
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return (EMSGSIZE); |
return (EMSGSIZE); |
} |
} |
ip = mtod(m, struct ip *); |
ip = mtod(m, struct ip *); |
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/* |
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* If the mbuf is read-only, we need to allocate |
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* a new mbuf for the header, since we need to |
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* modify the header. |
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*/ |
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if (M_READONLY(m)) { |
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int hlen = ip->ip_hl << 2; |
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m = m_copyup(m, hlen, (max_linkhdr + 3) & ~3); |
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if (m == NULL) |
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return (ENOMEM); /* XXX */ |
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ip = mtod(m, struct ip *); |
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} |
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/* XXX userland passes ip_len and ip_off in host order */ |
/* XXX userland passes ip_len and ip_off in host order */ |
if (m->m_pkthdr.len != ip->ip_len) { |
if (m->m_pkthdr.len != ip->ip_len) { |
m_freem(m); |
m_freem(m); |
Line 358 rip_output(m, va_alist) |
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Line 366 rip_output(m, va_alist) |
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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) |
ip->ip_id = htons(ip_id++); |
ip->ip_id = ip_newid(); |
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; |
ipstat.ips_rawout++; |
ipstat.ips_rawout++; |
} |
} |
#ifdef IPSEC |
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if (ipsec_setsocket(m, inp->inp_socket) != 0) { |
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m_freem(m); |
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return ENOBUFS; |
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} |
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#endif /*IPSEC*/ |
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return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, |
return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, |
&inp->inp_errormtu)); |
inp->inp_socket, &inp->inp_errormtu)); |
} |
} |
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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; |
Line 416 rip_ctloutput(op, so, level, optname, m) |
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Line 415 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 429 rip_ctloutput(op, so, level, optname, m) |
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Line 431 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, M_SOOPTS); |
*m = m_get(M_WAIT, MT_SOOPTS); |
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MCLAIM((*m), so->so_mowner); |
(*m)->m_len = sizeof (int); |
(*m)->m_len = sizeof (int); |
*mtod(*m, int *) = inp->inp_flags & INP_HDRINCL ? 1 : 0; |
*mtod(*m, int *) = inp->inp_flags & INP_HDRINCL ? 1 : 0; |
break; |
break; |
Line 437 rip_ctloutput(op, so, level, optname, m) |
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Line 440 rip_ctloutput(op, so, level, optname, m) |
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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 451 rip_ctloutput(op, so, level, optname, m) |
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Line 456 rip_ctloutput(op, so, level, optname, m) |
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} |
} |
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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 472 rip_bind(inp, nam) |
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Line 475 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 490 rip_connect(inp, nam) |
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Line 491 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 502 u_long rip_recvspace = RIPRCVQ; |
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Line 502 u_long rip_recvspace = RIPRCVQ; |
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/*ARGSUSED*/ |
/*ARGSUSED*/ |
int |
int |
rip_usrreq(so, req, m, nam, control, p) |
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 proc *p; |
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{ |
{ |
struct inpcb *inp; |
struct inpcb *inp; |
int s; |
int s; |
Line 517 rip_usrreq(so, req, m, nam, control, p) |
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Line 514 rip_usrreq(so, req, m, nam, control, p) |
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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, (caddr_t)nam, |
(struct ifnet *)control, p)); |
(struct ifnet *)control, l)); |
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if (req == PRU_PURGEIF) { |
if (req == PRU_PURGEIF) { |
in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control); |
in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control); |
Line 544 rip_usrreq(so, req, m, nam, control, p) |
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Line 541 rip_usrreq(so, req, m, nam, control, p) |
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error = EISCONN; |
error = EISCONN; |
break; |
break; |
} |
} |
if (p == 0 || (error = suser(p->p_ucred, &p->p_acflag))) { |
if (l == 0 || (error = kauth_authorize_network(l->l_cred, |
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KAUTH_NETWORK_SOCKET, |
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KAUTH_REQ_NETWORK_SOCKET_RAWSOCK, so, NULL, |
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NULL))) { |
error = EACCES; |
error = EACCES; |
break; |
break; |
} |
} |
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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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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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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); |
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} |