version 1.10, 1994/01/10 20:14:28 |
version 1.164.4.2, 2018/04/09 13:34:10 |
|
|
|
/* $NetBSD$ */ |
|
|
/* |
/* |
* Copyright (c) 1982, 1986, 1988 Regents of the University of California. |
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
* All rights reserved. |
* All rights reserved. |
* |
* |
* Redistribution and use in source and binary forms, with or without |
* Redistribution and use in source and binary forms, with or without |
|
|
* 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 project nor the names of its contributors |
* must display the following acknowledgement: |
* may be used to endorse or promote products derived from this software |
* This product includes software developed by the University of |
* without specific prior written permission. |
* California, Berkeley and its contributors. |
* |
* 4. Neither the name of the University nor the names of its contributors |
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
|
* SUCH DAMAGE. |
|
*/ |
|
|
|
/* |
|
* Copyright (c) 1982, 1986, 1988, 1993 |
|
* The Regents of the University of California. All rights reserved. |
|
* |
|
* Redistribution and use in source and binary forms, with or without |
|
* modification, are permitted provided that the following conditions |
|
* are met: |
|
* 1. Redistributions of source code must retain the above copyright |
|
* notice, this list of conditions and the following disclaimer. |
|
* 2. Redistributions in binary form must reproduce the above copyright |
|
* notice, this list of conditions and the following disclaimer in the |
|
* documentation and/or other materials provided with the distribution. |
|
* 3. Neither the name of the University nor the names of its contributors |
* 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. |
* |
* |
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
* |
* |
* from: @(#)raw_ip.c 7.8 (Berkeley) 7/25/90 |
* @(#)raw_ip.c 8.7 (Berkeley) 5/15/95 |
* $Id$ |
|
*/ |
*/ |
|
|
|
/* |
|
* Raw interface to IP protocol. |
|
*/ |
|
|
|
#include <sys/cdefs.h> |
|
__KERNEL_RCSID(0, "$NetBSD$"); |
|
|
|
#ifdef _KERNEL_OPT |
|
#include "opt_inet.h" |
|
#include "opt_compat_netbsd.h" |
|
#include "opt_ipsec.h" |
|
#include "opt_mrouting.h" |
|
#include "opt_net_mpsafe.h" |
|
#endif |
|
|
#include <sys/param.h> |
#include <sys/param.h> |
#include <sys/malloc.h> |
#include <sys/sysctl.h> |
#include <sys/mbuf.h> |
#include <sys/mbuf.h> |
#include <sys/socket.h> |
#include <sys/socket.h> |
#include <sys/protosw.h> |
#include <sys/protosw.h> |
#include <sys/socketvar.h> |
#include <sys/socketvar.h> |
#include <sys/errno.h> |
#include <sys/errno.h> |
|
#include <sys/systm.h> |
|
#include <sys/proc.h> |
|
#include <sys/kauth.h> |
|
|
#include <net/if.h> |
#include <net/if.h> |
#include <net/route.h> |
|
#include <net/raw_cb.h> |
|
|
|
#include <netinet/in.h> |
#include <netinet/in.h> |
#include <netinet/in_systm.h> |
#include <netinet/in_systm.h> |
#include <netinet/ip.h> |
#include <netinet/ip.h> |
#include <netinet/ip_var.h> |
#include <netinet/ip_var.h> |
#include <netinet/in_pcb.h> |
#include <netinet/ip_private.h> |
#include <netinet/ip_mroute.h> |
#include <netinet/ip_mroute.h> |
|
#include <netinet/ip_icmp.h> |
|
#include <netinet/in_pcb.h> |
|
#include <netinet/in_proto.h> |
|
#include <netinet/in_var.h> |
|
|
|
#ifdef IPSEC |
|
#include <netipsec/ipsec.h> |
|
#include <netipsec/ipsec_var.h> |
|
#include <netipsec/ipsec_private.h> |
|
#endif /* IPSEC */ |
|
|
|
#ifdef COMPAT_50 |
|
#include <compat/sys/socket.h> |
|
#endif |
|
|
|
struct inpcbtable rawcbtable; |
|
|
|
int rip_pcbnotify(struct inpcbtable *, struct in_addr, |
|
struct in_addr, int, int, void (*)(struct inpcb *, int)); |
|
static int rip_connect_pcb(struct inpcb *, struct sockaddr_in *); |
|
static void rip_disconnect1(struct inpcb *); |
|
|
|
static void sysctl_net_inet_raw_setup(struct sysctllog **); |
|
|
|
/* |
|
* Nominal space allocated to a raw ip socket. |
|
*/ |
|
#define RIPSNDQ 8192 |
|
#define RIPRCVQ 8192 |
|
|
|
static u_long rip_sendspace = RIPSNDQ; |
|
static u_long rip_recvspace = RIPRCVQ; |
|
|
/* |
/* |
* Raw interface to IP protocol. |
* Raw interface to IP protocol. |
*/ |
*/ |
struct sockaddr_in ripdst = { sizeof(ripdst), AF_INET }; |
|
struct sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET }; |
/* |
struct sockproto ripproto = { PF_INET }; |
* Initialize raw connection block q. |
|
*/ |
|
void |
|
rip_init(void) |
|
{ |
|
|
|
sysctl_net_inet_raw_setup(NULL); |
|
in_pcbinit(&rawcbtable, 1, 1); |
|
} |
|
|
|
static void |
|
rip_sbappendaddr(struct inpcb *last, struct ip *ip, const struct sockaddr *sa, |
|
int hlen, struct mbuf *opts, struct mbuf *n) |
|
{ |
|
if (last->inp_flags & INP_NOHEADER) |
|
m_adj(n, hlen); |
|
if (last->inp_flags & INP_CONTROLOPTS |
|
#ifdef SO_OTIMESTAMP |
|
|| last->inp_socket->so_options & SO_OTIMESTAMP |
|
#endif |
|
|| last->inp_socket->so_options & SO_TIMESTAMP) |
|
ip_savecontrol(last, &opts, ip, n); |
|
if (sbappendaddr(&last->inp_socket->so_rcv, sa, n, opts) == 0) { |
|
soroverflow(last->inp_socket); |
|
m_freem(n); |
|
if (opts) |
|
m_freem(opts); |
|
} else |
|
sorwakeup(last->inp_socket); |
|
} |
|
|
/* |
/* |
* Setup generic address and protocol structures |
* Setup generic address and protocol structures |
Line 66 struct sockproto ripproto = { PF_INET }; |
|
Line 169 struct sockproto ripproto = { PF_INET }; |
|
* mbuf chain. |
* mbuf chain. |
*/ |
*/ |
void |
void |
rip_input(m) |
rip_input(struct mbuf *m, ...) |
struct mbuf *m; |
{ |
|
int hlen, proto; |
|
struct ip *ip = mtod(m, struct ip *); |
|
struct inpcb_hdr *inph; |
|
struct inpcb *inp; |
|
struct inpcb *last = NULL; |
|
struct mbuf *n, *opts = NULL; |
|
struct sockaddr_in ripsrc; |
|
va_list ap; |
|
|
|
va_start(ap, m); |
|
(void)va_arg(ap, int); /* ignore value, advance ap */ |
|
proto = va_arg(ap, int); |
|
va_end(ap); |
|
|
|
sockaddr_in_init(&ripsrc, &ip->ip_src, 0); |
|
|
|
/* |
|
* XXX Compatibility: programs using raw IP expect ip_len |
|
* XXX to have the header length subtracted, and in host order. |
|
* XXX ip_off is also expected to be host order. |
|
*/ |
|
hlen = ip->ip_hl << 2; |
|
ip->ip_len = ntohs(ip->ip_len) - hlen; |
|
NTOHS(ip->ip_off); |
|
|
|
TAILQ_FOREACH(inph, &rawcbtable.inpt_queue, inph_queue) { |
|
inp = (struct inpcb *)inph; |
|
if (inp->inp_af != AF_INET) |
|
continue; |
|
if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) |
|
continue; |
|
if (!in_nullhost(inp->inp_laddr) && |
|
!in_hosteq(inp->inp_laddr, ip->ip_dst)) |
|
continue; |
|
if (!in_nullhost(inp->inp_faddr) && |
|
!in_hosteq(inp->inp_faddr, ip->ip_src)) |
|
continue; |
|
if (last == NULL) |
|
; |
|
#if defined(IPSEC) |
|
/* check AH/ESP integrity. */ |
|
else if (ipsec_used && |
|
ipsec4_in_reject(m, last)) { |
|
IPSEC_STATINC(IPSEC_STAT_IN_POLVIO); |
|
/* do not inject data to pcb */ |
|
} |
|
#endif /*IPSEC*/ |
|
else if ((n = m_copypacket(m, M_DONTWAIT)) != NULL) { |
|
rip_sbappendaddr(last, ip, sintosa(&ripsrc), hlen, opts, |
|
n); |
|
opts = NULL; |
|
} |
|
last = inp; |
|
} |
|
#if defined(IPSEC) |
|
/* check AH/ESP integrity. */ |
|
if (ipsec_used && last != NULL |
|
&& ipsec4_in_reject(m, last)) { |
|
m_freem(m); |
|
IPSEC_STATINC(IPSEC_STAT_IN_POLVIO); |
|
IP_STATDEC(IP_STAT_DELIVERED); |
|
/* do not inject data to pcb */ |
|
} else |
|
#endif /*IPSEC*/ |
|
if (last != NULL) |
|
rip_sbappendaddr(last, ip, sintosa(&ripsrc), hlen, opts, m); |
|
else if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) { |
|
uint64_t *ips; |
|
|
|
icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL, |
|
0, 0); |
|
ips = IP_STAT_GETREF(); |
|
ips[IP_STAT_NOPROTO]++; |
|
ips[IP_STAT_DELIVERED]--; |
|
IP_STAT_PUTREF(); |
|
} else |
|
m_freem(m); |
|
return; |
|
} |
|
|
|
int |
|
rip_pcbnotify(struct inpcbtable *table, |
|
struct in_addr faddr, struct in_addr laddr, int proto, int errno, |
|
void (*notify)(struct inpcb *, int)) |
{ |
{ |
register struct ip *ip = mtod(m, struct ip *); |
struct inpcb_hdr *inph, *ninph; |
|
int nmatch; |
|
|
ripproto.sp_protocol = ip->ip_p; |
nmatch = 0; |
ripdst.sin_addr = ip->ip_dst; |
TAILQ_FOREACH_SAFE(inph, &table->inpt_queue, inph_queue, ninph) { |
ripsrc.sin_addr = ip->ip_src; |
struct inpcb *inp = (struct inpcb *)inph; |
if (raw_input(m, &ripproto, (struct sockaddr *)&ripsrc, |
if (inp->inp_af != AF_INET) |
(struct sockaddr *)&ripdst) == 0) { |
continue; |
ipstat.ips_noproto++; |
if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) |
ipstat.ips_delivered--; |
continue; |
|
if (in_hosteq(inp->inp_faddr, faddr) && |
|
in_hosteq(inp->inp_laddr, laddr)) { |
|
(*notify)(inp, errno); |
|
nmatch++; |
|
} |
} |
} |
|
|
|
return nmatch; |
|
} |
|
|
|
void * |
|
rip_ctlinput(int cmd, const struct sockaddr *sa, void *v) |
|
{ |
|
struct ip *ip = v; |
|
void (*notify)(struct inpcb *, int) = in_rtchange; |
|
int errno; |
|
|
|
if (sa->sa_family != AF_INET || |
|
sa->sa_len != sizeof(struct sockaddr_in)) |
|
return NULL; |
|
if ((unsigned)cmd >= PRC_NCMDS) |
|
return NULL; |
|
errno = inetctlerrmap[cmd]; |
|
if (PRC_IS_REDIRECT(cmd)) |
|
notify = in_rtchange, ip = 0; |
|
else if (cmd == PRC_HOSTDEAD) |
|
ip = 0; |
|
else if (errno == 0) |
|
return NULL; |
|
if (ip) { |
|
rip_pcbnotify(&rawcbtable, satocsin(sa)->sin_addr, |
|
ip->ip_src, ip->ip_p, errno, notify); |
|
|
|
/* XXX mapped address case */ |
|
} else |
|
in_pcbnotifyall(&rawcbtable, satocsin(sa)->sin_addr, errno, |
|
notify); |
|
return NULL; |
} |
} |
|
|
/* |
/* |
* Generate IP header and pass packet to ip_output. |
* Generate IP header and pass packet to ip_output. |
* Tack on options user may have setup with control call. |
* Tack on options user may have setup with control call. |
*/ |
*/ |
#define satosin(sa) ((struct sockaddr_in *)(sa)) |
|
int |
int |
rip_output(m, so) |
rip_output(struct mbuf *m, struct inpcb *inp, struct mbuf *control, |
register struct mbuf *m; |
struct lwp *l) |
struct socket *so; |
{ |
{ |
struct ip *ip; |
register struct ip *ip; |
|
register struct raw_inpcb *rp = sotorawinpcb(so); |
|
register struct sockaddr_in *sin; |
|
struct mbuf *opts; |
struct mbuf *opts; |
|
struct ip_pktopts pktopts; |
|
kauth_cred_t cred; |
|
int error, flags; |
|
|
|
flags = (inp->inp_socket->so_options & SO_DONTROUTE) | |
|
IP_ALLOWBROADCAST | IP_RETURNMTU; |
|
|
|
if (l == NULL) |
|
cred = NULL; |
|
else |
|
cred = l->l_cred; |
|
|
|
/* Setup IP outgoing packet options */ |
|
memset(&pktopts, 0, sizeof(pktopts)); |
|
error = ip_setpktopts(control, &pktopts, &flags, inp, cred); |
|
if (control != NULL) |
|
m_freem(control); |
|
if (error != 0) |
|
goto release; |
|
|
/* |
/* |
* If the user handed us a complete IP packet, use it. |
* If the user handed us a complete IP packet, use it. |
* Otherwise, allocate an mbuf for a header and fill it in. |
* Otherwise, allocate an mbuf for a header and fill it in. |
*/ |
*/ |
if (rp->rinp_flags & RINPF_HDRINCL) { |
if ((inp->inp_flags & INP_HDRINCL) == 0) { |
ip = mtod(m, struct ip *); |
if ((m->m_pkthdr.len + sizeof(struct ip)) > IP_MAXPACKET) { |
if (ip->ip_len > m->m_pkthdr.len) |
error = EMSGSIZE; |
return EMSGSIZE; |
goto release; |
ip->ip_len = m->m_pkthdr.len; |
} |
opts = NULL; |
M_PREPEND(m, sizeof(struct ip), M_DONTWAIT); |
} else { |
if (!m) { |
M_PREPEND(m, sizeof(struct ip), M_WAIT); |
error = ENOBUFS; |
|
goto release; |
|
} |
ip = mtod(m, struct ip *); |
ip = mtod(m, struct ip *); |
ip->ip_tos = 0; |
ip->ip_tos = 0; |
ip->ip_off = 0; |
ip->ip_off = htons(0); |
ip->ip_p = rp->rinp_rcb.rcb_proto.sp_protocol; |
ip->ip_p = inp->inp_ip.ip_p; |
ip->ip_len = m->m_pkthdr.len; |
ip->ip_len = htons(m->m_pkthdr.len); |
if (sin = satosin(rp->rinp_rcb.rcb_laddr)) { |
ip->ip_src = pktopts.ippo_laddr.sin_addr; |
ip->ip_src = sin->sin_addr; |
ip->ip_dst = inp->inp_faddr; |
} else |
|
ip->ip_src.s_addr = 0; |
|
if (sin = satosin(rp->rinp_rcb.rcb_faddr)) |
|
ip->ip_dst = sin->sin_addr; |
|
ip->ip_ttl = MAXTTL; |
ip->ip_ttl = MAXTTL; |
opts = rp->rinp_options; |
opts = inp->inp_options; |
|
} else { |
|
if (m->m_pkthdr.len > IP_MAXPACKET) { |
|
error = EMSGSIZE; |
|
goto release; |
|
} |
|
ip = mtod(m, struct ip *); |
|
|
|
/* |
|
* If the mbuf is read-only, we need to allocate |
|
* a new mbuf for the header, since we need to |
|
* modify the header. |
|
*/ |
|
if (M_READONLY(m)) { |
|
int hlen = ip->ip_hl << 2; |
|
|
|
m = m_copyup(m, hlen, (max_linkhdr + 3) & ~3); |
|
if (m == NULL) { |
|
error = ENOMEM; /* XXX */ |
|
goto release; |
|
} |
|
ip = mtod(m, struct ip *); |
|
} |
|
|
|
/* XXX userland passes ip_len and ip_off in host order */ |
|
if (m->m_pkthdr.len != ip->ip_len) { |
|
error = EINVAL; |
|
goto release; |
|
} |
|
HTONS(ip->ip_len); |
|
HTONS(ip->ip_off); |
|
if (ip->ip_id != 0 || m->m_pkthdr.len < IP_MINFRAGSIZE) |
|
flags |= IP_NOIPNEWID; |
|
opts = NULL; |
|
/* XXX prevent ip_output from overwriting header fields */ |
|
flags |= IP_RAWOUTPUT; |
|
IP_STATINC(IP_STAT_RAWOUT); |
} |
} |
return (ip_output(m, opts, &rp->rinp_route, |
|
(so->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST |
/* |
#ifdef MULTICAST |
* IP output. Note: if IP_RETURNMTU flag is set, the MTU size |
, rp->rinp_rcb.rcb_moptions |
* will be stored in inp_errormtu. |
#else |
*/ |
, NULL |
return ip_output(m, opts, &inp->inp_route, flags, pktopts.ippo_imo, |
#endif |
inp); |
)); |
|
|
release: |
|
if (m != NULL) |
|
m_freem(m); |
|
return error; |
} |
} |
|
|
/* |
/* |
* 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, struct sockopt *sopt) |
int op; |
|
struct socket *so; |
|
int level, optname; |
|
struct mbuf **m; |
|
{ |
{ |
|
struct inpcb *inp = sotoinpcb(so); |
int error = 0; |
int error = 0; |
register struct raw_inpcb *rp = sotorawinpcb(so); |
int optval; |
|
|
if (level != IPPROTO_IP) |
if (sopt->sopt_level == SOL_SOCKET && sopt->sopt_name == SO_NOHEADER) { |
error = EINVAL; |
if (op == PRCO_GETOPT) { |
else switch (op) { |
optval = (inp->inp_flags & INP_NOHEADER) ? 1 : 0; |
|
error = sockopt_set(sopt, &optval, sizeof(optval)); |
case PRCO_SETOPT: |
} else if (op == PRCO_SETOPT) { |
switch (optname) { |
error = sockopt_getint(sopt, &optval); |
|
if (error) |
|
goto out; |
|
if (optval) { |
|
inp->inp_flags &= ~INP_HDRINCL; |
|
inp->inp_flags |= INP_NOHEADER; |
|
} else |
|
inp->inp_flags &= ~INP_NOHEADER; |
|
} |
|
goto out; |
|
} else if (sopt->sopt_level != IPPROTO_IP) |
|
return ip_ctloutput(op, so, sopt); |
|
|
case IP_OPTIONS: |
switch (op) { |
return (ip_pcbopts(&rp->rinp_options, *m)); |
|
|
|
|
case PRCO_SETOPT: |
|
switch (sopt->sopt_name) { |
case IP_HDRINCL: |
case IP_HDRINCL: |
if (m == 0 || *m == 0 || (*m)->m_len < sizeof (int)) { |
error = sockopt_getint(sopt, &optval); |
error = EINVAL; |
if (error) |
break; |
break; |
} |
if (optval) |
if (*mtod(*m, int *)) |
inp->inp_flags |= INP_HDRINCL; |
rp->rinp_flags |= RINPF_HDRINCL; |
|
else |
else |
rp->rinp_flags &= ~RINPF_HDRINCL; |
inp->inp_flags &= ~INP_HDRINCL; |
break; |
break; |
#ifdef MULTICAST |
|
case IP_MULTICAST_IF: |
|
case IP_MULTICAST_TTL: |
|
case IP_MULTICAST_LOOP: |
|
case IP_ADD_MEMBERSHIP: |
|
case IP_DROP_MEMBERSHIP: |
|
error = ip_setmoptions(optname, |
|
&rp->rinp_rcb.rcb_moptions, *m); |
|
break; |
|
default: |
|
#ifdef MROUTING |
#ifdef MROUTING |
error = ip_mrouter_cmd(optname, so, *m); |
case MRT_INIT: |
#else |
case MRT_DONE: |
error = EINVAL; |
case MRT_ADD_VIF: |
#endif |
case MRT_DEL_VIF: |
|
case MRT_ADD_MFC: |
|
case MRT_DEL_MFC: |
|
case MRT_ASSERT: |
|
case MRT_API_CONFIG: |
|
case MRT_ADD_BW_UPCALL: |
|
case MRT_DEL_BW_UPCALL: |
|
error = ip_mrouter_set(so, sopt); |
break; |
break; |
#else |
#endif |
|
|
default: |
default: |
error = EINVAL; |
error = ip_ctloutput(op, so, sopt); |
break; |
break; |
#endif |
|
} |
} |
break; |
break; |
|
|
case PRCO_GETOPT: |
case PRCO_GETOPT: |
*m = m_get(M_WAIT, MT_SOOPTS); |
switch (sopt->sopt_name) { |
switch (optname) { |
|
|
|
case IP_OPTIONS: |
|
if (rp->rinp_options) { |
|
(*m)->m_len = rp->rinp_options->m_len; |
|
bcopy(mtod(rp->rinp_options, caddr_t), |
|
mtod(*m, caddr_t), (unsigned)(*m)->m_len); |
|
} else |
|
(*m)->m_len = 0; |
|
break; |
|
|
|
case IP_HDRINCL: |
case IP_HDRINCL: |
(*m)->m_len = sizeof (int); |
optval = inp->inp_flags & INP_HDRINCL; |
*mtod(*m, int *) = rp->rinp_flags & RINPF_HDRINCL; |
error = sockopt_set(sopt, &optval, sizeof(optval)); |
break; |
break; |
#ifdef MULTICAST |
|
case IP_MULTICAST_IF: |
#ifdef MROUTING |
case IP_MULTICAST_TTL: |
case MRT_VERSION: |
case IP_MULTICAST_LOOP: |
case MRT_ASSERT: |
case IP_ADD_MEMBERSHIP: |
case MRT_API_SUPPORT: |
case IP_DROP_MEMBERSHIP: |
case MRT_API_CONFIG: |
error = ip_getmoptions(optname, |
error = ip_mrouter_get(so, sopt); |
rp->rinp_rcb.rcb_moptions, m); |
|
break; |
break; |
#endif |
#endif |
|
|
default: |
default: |
error = EINVAL; |
error = ip_ctloutput(op, so, sopt); |
m_freem(*m); |
|
*m = 0; |
|
break; |
break; |
} |
} |
break; |
break; |
} |
} |
if (op == PRCO_SETOPT && *m) |
out: |
(void)m_free(*m); |
return error; |
return (error); |
|
} |
} |
|
|
/*ARGSUSED*/ |
|
int |
int |
rip_usrreq(so, req, m, nam, control) |
rip_connect_pcb(struct inpcb *inp, struct sockaddr_in *addr) |
register struct socket *so; |
{ |
int req; |
|
struct mbuf *m, *nam, *control; |
if (IFNET_READER_EMPTY()) |
{ |
return (EADDRNOTAVAIL); |
register int error = 0; |
if (addr->sin_family != AF_INET) |
register struct raw_inpcb *rp = sotorawinpcb(so); |
return (EAFNOSUPPORT); |
#if defined(MULTICAST) && defined(MROUTING) |
inp->inp_faddr = addr->sin_addr; |
|
return (0); |
|
} |
|
|
|
static void |
|
rip_disconnect1(struct inpcb *inp) |
|
{ |
|
|
|
inp->inp_faddr = zeroin_addr; |
|
} |
|
|
|
static int |
|
rip_attach(struct socket *so, int proto) |
|
{ |
|
struct inpcb *inp; |
|
int error; |
|
|
|
KASSERT(sotoinpcb(so) == NULL); |
|
sosetlock(so); |
|
|
|
if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { |
|
error = soreserve(so, rip_sendspace, rip_recvspace); |
|
if (error) { |
|
return error; |
|
} |
|
} |
|
|
|
error = in_pcballoc(so, &rawcbtable); |
|
if (error) { |
|
return error; |
|
} |
|
inp = sotoinpcb(so); |
|
inp->inp_ip.ip_p = proto; |
|
KASSERT(solocked(so)); |
|
|
|
return 0; |
|
} |
|
|
|
static void |
|
rip_detach(struct socket *so) |
|
{ |
|
struct inpcb *inp; |
|
|
|
KASSERT(solocked(so)); |
|
inp = sotoinpcb(so); |
|
KASSERT(inp != NULL); |
|
|
|
#ifdef MROUTING |
extern struct socket *ip_mrouter; |
extern struct socket *ip_mrouter; |
|
if (so == ip_mrouter) { |
|
ip_mrouter_done(); |
|
} |
#endif |
#endif |
switch (req) { |
in_pcbdetach(inp); |
|
} |
|
|
case PRU_ATTACH: |
static int |
if (rp) |
rip_accept(struct socket *so, struct sockaddr *nam) |
panic("rip_attach"); |
{ |
MALLOC(rp, struct raw_inpcb *, sizeof *rp, M_PCB, M_WAITOK); |
KASSERT(solocked(so)); |
if (rp == 0) |
|
return (ENOBUFS); |
|
bzero((caddr_t)rp, sizeof *rp); |
|
so->so_pcb = (caddr_t)rp; |
|
break; |
|
|
|
case PRU_DETACH: |
panic("rip_accept"); |
if (rp == 0) |
|
panic("rip_detach"); |
return EOPNOTSUPP; |
#if defined(MULTICAST) && defined(MROUTING) |
} |
if (so == ip_mrouter) |
|
ip_mrouter_done(); |
|
#endif |
|
if (rp->rinp_options) |
|
m_freem(rp->rinp_options); |
|
#ifdef MULTICAST |
|
if (rp->rinp_rcb.rcb_moptions) |
|
ip_freemoptions(rp->rinp_rcb.rcb_moptions); |
|
#endif |
|
if (rp->rinp_route.ro_rt) |
|
RTFREE(rp->rinp_route.ro_rt); |
|
if (rp->rinp_rcb.rcb_laddr) |
|
rp->rinp_rcb.rcb_laddr = 0; |
|
break; |
|
|
|
case PRU_BIND: |
static int |
{ |
rip_bind(struct socket *so, struct sockaddr *nam, struct lwp *l) |
struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); |
{ |
|
struct inpcb *inp = sotoinpcb(so); |
if (nam->m_len != sizeof(*addr)) |
struct sockaddr_in *addr = (struct sockaddr_in *)nam; |
return (EINVAL); |
int error = 0; |
if ((ifnet == 0) || |
int s, ss; |
((addr->sin_family != AF_INET) && |
struct ifaddr *ifa; |
(addr->sin_family != AF_IMPLINK)) || |
|
(addr->sin_addr.s_addr && |
KASSERT(solocked(so)); |
ifa_ifwithaddr((struct sockaddr *)addr) == 0)) |
KASSERT(inp != NULL); |
return (EADDRNOTAVAIL); |
KASSERT(nam != NULL); |
rp->rinp_rcb.rcb_laddr = (struct sockaddr *)&rp->rinp_laddr; |
|
rp->rinp_laddr = *addr; |
if (addr->sin_len != sizeof(*addr)) |
return (0); |
return EINVAL; |
} |
|
case PRU_CONNECT: |
s = splsoftnet(); |
{ |
if (IFNET_READER_EMPTY()) { |
struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); |
error = EADDRNOTAVAIL; |
|
goto release; |
if (nam->m_len != sizeof(*addr)) |
} |
return (EINVAL); |
if (addr->sin_family != AF_INET) { |
if (ifnet == 0) |
error = EAFNOSUPPORT; |
return (EADDRNOTAVAIL); |
goto release; |
if ((addr->sin_family != AF_INET) && |
} |
(addr->sin_family != AF_IMPLINK)) |
ss = pserialize_read_enter(); |
return (EAFNOSUPPORT); |
if ((ifa = ifa_ifwithaddr(sintosa(addr))) == NULL && |
rp->rinp_rcb.rcb_faddr = (struct sockaddr *)&rp->rinp_faddr; |
!in_nullhost(addr->sin_addr)) |
rp->rinp_faddr = *addr; |
{ |
|
pserialize_read_exit(ss); |
|
error = EADDRNOTAVAIL; |
|
goto release; |
|
} |
|
if (ifa && (ifatoia(ifa))->ia4_flags & IN6_IFF_DUPLICATED) { |
|
pserialize_read_exit(ss); |
|
error = EADDRNOTAVAIL; |
|
goto release; |
|
} |
|
pserialize_read_exit(ss); |
|
|
|
inp->inp_laddr = addr->sin_addr; |
|
|
|
release: |
|
splx(s); |
|
return error; |
|
} |
|
|
|
static int |
|
rip_listen(struct socket *so, struct lwp *l) |
|
{ |
|
KASSERT(solocked(so)); |
|
|
|
return EOPNOTSUPP; |
|
} |
|
|
|
static int |
|
rip_connect(struct socket *so, struct sockaddr *nam, struct lwp *l) |
|
{ |
|
struct inpcb *inp = sotoinpcb(so); |
|
int error = 0; |
|
int s; |
|
|
|
KASSERT(solocked(so)); |
|
KASSERT(inp != NULL); |
|
KASSERT(nam != NULL); |
|
|
|
s = splsoftnet(); |
|
error = rip_connect_pcb(inp, (struct sockaddr_in *)nam); |
|
if (! error) |
soisconnected(so); |
soisconnected(so); |
return (0); |
splx(s); |
} |
|
|
return error; |
|
} |
|
|
|
static int |
|
rip_connect2(struct socket *so, struct socket *so2) |
|
{ |
|
KASSERT(solocked(so)); |
|
|
|
return EOPNOTSUPP; |
|
} |
|
|
|
static int |
|
rip_disconnect(struct socket *so) |
|
{ |
|
struct inpcb *inp = sotoinpcb(so); |
|
int s; |
|
|
|
KASSERT(solocked(so)); |
|
KASSERT(inp != NULL); |
|
|
|
s = splsoftnet(); |
|
soisdisconnected(so); |
|
rip_disconnect1(inp); |
|
splx(s); |
|
|
|
return 0; |
|
} |
|
|
|
static int |
|
rip_shutdown(struct socket *so) |
|
{ |
|
int s; |
|
|
|
KASSERT(solocked(so)); |
|
|
|
/* |
|
* Mark the connection as being incapable of further input. |
|
*/ |
|
s = splsoftnet(); |
|
socantsendmore(so); |
|
splx(s); |
|
|
|
return 0; |
|
} |
|
|
|
static int |
|
rip_abort(struct socket *so) |
|
{ |
|
KASSERT(solocked(so)); |
|
|
|
panic("rip_abort"); |
|
|
|
return EOPNOTSUPP; |
|
} |
|
|
|
static int |
|
rip_ioctl(struct socket *so, u_long cmd, void *nam, struct ifnet *ifp) |
|
{ |
|
return in_control(so, cmd, nam, ifp); |
|
} |
|
|
|
static int |
|
rip_stat(struct socket *so, struct stat *ub) |
|
{ |
|
KASSERT(solocked(so)); |
|
|
|
/* stat: don't bother with a blocksize. */ |
|
return 0; |
|
} |
|
|
|
static int |
|
rip_peeraddr(struct socket *so, struct sockaddr *nam) |
|
{ |
|
int s; |
|
|
|
KASSERT(solocked(so)); |
|
KASSERT(sotoinpcb(so) != NULL); |
|
KASSERT(nam != NULL); |
|
|
|
s = splsoftnet(); |
|
in_setpeeraddr(sotoinpcb(so), (struct sockaddr_in *)nam); |
|
splx(s); |
|
|
|
return 0; |
|
} |
|
|
|
static int |
|
rip_sockaddr(struct socket *so, struct sockaddr *nam) |
|
{ |
|
int s; |
|
|
|
KASSERT(solocked(so)); |
|
KASSERT(sotoinpcb(so) != NULL); |
|
KASSERT(nam != NULL); |
|
|
|
s = splsoftnet(); |
|
in_setsockaddr(sotoinpcb(so), (struct sockaddr_in *)nam); |
|
splx(s); |
|
|
|
return 0; |
|
} |
|
|
|
static int |
|
rip_rcvd(struct socket *so, int flags, struct lwp *l) |
|
{ |
|
KASSERT(solocked(so)); |
|
|
|
return EOPNOTSUPP; |
|
} |
|
|
|
static int |
|
rip_recvoob(struct socket *so, struct mbuf *m, int flags) |
|
{ |
|
KASSERT(solocked(so)); |
|
|
|
return EOPNOTSUPP; |
|
} |
|
|
|
static int |
|
rip_send(struct socket *so, struct mbuf *m, struct sockaddr *nam, |
|
struct mbuf *control, struct lwp *l) |
|
{ |
|
struct inpcb *inp = sotoinpcb(so); |
|
int error = 0; |
|
int s; |
|
|
|
KASSERT(solocked(so)); |
|
KASSERT(inp != NULL); |
|
KASSERT(m != NULL); |
|
|
|
/* |
|
* Ship a packet out. The appropriate raw output |
|
* routine handles any massaging necessary. |
|
*/ |
|
s = splsoftnet(); |
|
if (nam) { |
|
if ((so->so_state & SS_ISCONNECTED) != 0) { |
|
error = EISCONN; |
|
goto die; |
|
} |
|
error = rip_connect_pcb(inp, (struct sockaddr_in *)nam); |
|
if (error) |
|
goto die; |
|
} else { |
|
if ((so->so_state & SS_ISCONNECTED) == 0) { |
|
error = ENOTCONN; |
|
goto die; |
|
} |
} |
} |
error = raw_usrreq(so, req, m, nam, control); |
error = rip_output(m, inp, control, l); |
|
m = NULL; |
|
control = NULL; |
|
if (nam) |
|
rip_disconnect1(inp); |
|
die: |
|
if (m != NULL) |
|
m_freem(m); |
|
if (control != NULL) |
|
m_freem(control); |
|
|
|
splx(s); |
|
return error; |
|
} |
|
|
|
static int |
|
rip_sendoob(struct socket *so, struct mbuf *m, struct mbuf *control) |
|
{ |
|
KASSERT(solocked(so)); |
|
|
|
m_freem(m); |
|
m_freem(control); |
|
|
|
return EOPNOTSUPP; |
|
} |
|
|
|
static int |
|
rip_purgeif(struct socket *so, struct ifnet *ifp) |
|
{ |
|
int s; |
|
|
|
s = splsoftnet(); |
|
mutex_enter(softnet_lock); |
|
in_pcbpurgeif0(&rawcbtable, ifp); |
|
#ifdef NET_MPSAFE |
|
mutex_exit(softnet_lock); |
|
#endif |
|
in_purgeif(ifp); |
|
#ifdef NET_MPSAFE |
|
mutex_enter(softnet_lock); |
|
#endif |
|
in_pcbpurgeif(&rawcbtable, ifp); |
|
mutex_exit(softnet_lock); |
|
splx(s); |
|
|
|
return 0; |
|
} |
|
|
|
PR_WRAP_USRREQS(rip) |
|
#define rip_attach rip_attach_wrapper |
|
#define rip_detach rip_detach_wrapper |
|
#define rip_accept rip_accept_wrapper |
|
#define rip_bind rip_bind_wrapper |
|
#define rip_listen rip_listen_wrapper |
|
#define rip_connect rip_connect_wrapper |
|
#define rip_connect2 rip_connect2_wrapper |
|
#define rip_disconnect rip_disconnect_wrapper |
|
#define rip_shutdown rip_shutdown_wrapper |
|
#define rip_abort rip_abort_wrapper |
|
#define rip_ioctl rip_ioctl_wrapper |
|
#define rip_stat rip_stat_wrapper |
|
#define rip_peeraddr rip_peeraddr_wrapper |
|
#define rip_sockaddr rip_sockaddr_wrapper |
|
#define rip_rcvd rip_rcvd_wrapper |
|
#define rip_recvoob rip_recvoob_wrapper |
|
#define rip_send rip_send_wrapper |
|
#define rip_sendoob rip_sendoob_wrapper |
|
#define rip_purgeif rip_purgeif_wrapper |
|
|
|
const struct pr_usrreqs rip_usrreqs = { |
|
.pr_attach = rip_attach, |
|
.pr_detach = rip_detach, |
|
.pr_accept = rip_accept, |
|
.pr_bind = rip_bind, |
|
.pr_listen = rip_listen, |
|
.pr_connect = rip_connect, |
|
.pr_connect2 = rip_connect2, |
|
.pr_disconnect = rip_disconnect, |
|
.pr_shutdown = rip_shutdown, |
|
.pr_abort = rip_abort, |
|
.pr_ioctl = rip_ioctl, |
|
.pr_stat = rip_stat, |
|
.pr_peeraddr = rip_peeraddr, |
|
.pr_sockaddr = rip_sockaddr, |
|
.pr_rcvd = rip_rcvd, |
|
.pr_recvoob = rip_recvoob, |
|
.pr_send = rip_send, |
|
.pr_sendoob = rip_sendoob, |
|
.pr_purgeif = rip_purgeif, |
|
}; |
|
|
|
static void |
|
sysctl_net_inet_raw_setup(struct sysctllog **clog) |
|
{ |
|
|
if (error && (req == PRU_ATTACH) && so->so_pcb) |
sysctl_createv(clog, 0, NULL, NULL, |
free(so->so_pcb, M_PCB); |
CTLFLAG_PERMANENT, |
return (error); |
CTLTYPE_NODE, "inet", NULL, |
|
NULL, 0, NULL, 0, |
|
CTL_NET, PF_INET, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_NODE, "raw", |
|
SYSCTL_DESCR("Raw IPv4 settings"), |
|
NULL, 0, NULL, 0, |
|
CTL_NET, PF_INET, IPPROTO_RAW, CTL_EOL); |
|
|
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_STRUCT, "pcblist", |
|
SYSCTL_DESCR("Raw IPv4 control block list"), |
|
sysctl_inpcblist, 0, &rawcbtable, 0, |
|
CTL_NET, PF_INET, IPPROTO_RAW, |
|
CTL_CREATE, CTL_EOL); |
} |
} |