version 1.88.4.1, 2006/02/05 03:03:09 |
version 1.165, 2017/07/06 17:08:57 |
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* @(#)raw_ip.c 8.7 (Berkeley) 5/15/95 |
* @(#)raw_ip.c 8.7 (Berkeley) 5/15/95 |
*/ |
*/ |
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/* |
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* Raw interface to IP protocol. |
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*/ |
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#include <sys/cdefs.h> |
#include <sys/cdefs.h> |
__KERNEL_RCSID(0, "$NetBSD$"); |
__KERNEL_RCSID(0, "$NetBSD$"); |
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#ifdef _KERNEL_OPT |
#include "opt_inet.h" |
#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 "opt_net_mpsafe.h" |
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#endif |
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#include <sys/param.h> |
#include <sys/param.h> |
#include <sys/sysctl.h> |
#include <sys/sysctl.h> |
#include <sys/malloc.h> |
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#include <sys/mbuf.h> |
#include <sys/mbuf.h> |
#include <sys/socket.h> |
#include <sys/socket.h> |
#include <sys/protosw.h> |
#include <sys/protosw.h> |
Line 77 __KERNEL_RCSID(0, "$NetBSD$"); |
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Line 83 __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> |
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#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> |
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#include <netinet/ip_private.h> |
#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> |
#include <netinet/in_proto.h> |
#include <netinet/in_proto.h> |
#include <netinet/in_var.h> |
#include <netinet/in_var.h> |
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#include <machine/stdarg.h> |
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#ifdef IPSEC |
#ifdef IPSEC |
#include <netinet6/ipsec.h> |
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#endif /*IPSEC*/ |
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#ifdef FAST_IPSEC |
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#include <netipsec/ipsec.h> |
#include <netipsec/ipsec.h> |
#include <netipsec/ipsec_var.h> /* XXX ipsecstat namespace */ |
#include <netipsec/ipsec_var.h> |
#endif /* FAST_IPSEC*/ |
#include <netipsec/ipsec_private.h> |
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#endif /* IPSEC */ |
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struct inpcbtable rawcbtable; |
struct inpcbtable rawcbtable; |
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int rip_pcbnotify(struct inpcbtable *, struct in_addr, |
int rip_pcbnotify(struct inpcbtable *, struct in_addr, |
struct in_addr, int, int, void (*)(struct inpcb *, int)); |
struct in_addr, int, int, void (*)(struct inpcb *, int)); |
int rip_bind(struct inpcb *, struct mbuf *); |
static int rip_connect_pcb(struct inpcb *, struct sockaddr_in *); |
int rip_connect(struct inpcb *, struct mbuf *); |
static void rip_disconnect1(struct inpcb *); |
void rip_disconnect(struct inpcb *); |
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static void sysctl_net_inet_raw_setup(struct sysctllog **); |
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/* |
/* |
* Nominal space allocated to a raw ip socket. |
* Nominal space allocated to a raw ip socket. |
Line 116 void rip_disconnect(struct inpcb *); |
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Line 119 void rip_disconnect(struct inpcb *); |
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#define RIPSNDQ 8192 |
#define RIPSNDQ 8192 |
#define RIPRCVQ 8192 |
#define RIPRCVQ 8192 |
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static u_long rip_sendspace = RIPSNDQ; |
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static u_long rip_recvspace = RIPRCVQ; |
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/* |
/* |
* Raw interface to IP protocol. |
* Raw interface to IP protocol. |
*/ |
*/ |
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rip_init(void) |
rip_init(void) |
{ |
{ |
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sysctl_net_inet_raw_setup(NULL); |
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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|| SOOPT_TIMESTAMP(last->inp_socket->so_options)) |
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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 *); |
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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 151 rip_input(struct mbuf *m, ...) |
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Line 177 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(inp, &rawcbtable.inpt_queue, inp_queue) { |
TAILQ_FOREACH(inph, &rawcbtable.inpt_queue, inph_queue) { |
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inp = (struct inpcb *)inph; |
if (inp->inp_af != AF_INET) |
if (inp->inp_af != AF_INET) |
continue; |
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) |
Line 176 rip_input(struct mbuf *m, ...) |
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Line 200 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) |
#if defined(IPSEC) || defined(FAST_IPSEC) |
/* check AH/ESP integrity. */ |
/* check AH/ESP integrity. */ |
else if (ipsec_used && |
if (ipsec4_in_reject_so(m, last->inp_socket)) { |
ipsec4_in_reject(m, last)) { |
ipsecstat.in_polvio++; |
IPSEC_STATINC(IPSEC_STAT_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) |
/* check AH/ESP integrity. */ |
/* check AH/ESP integrity. */ |
if (last && ipsec4_in_reject_so(m, last->inp_socket)) { |
if (ipsec_used && last != NULL |
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&& ipsec4_in_reject(m, last)) { |
m_freem(m); |
m_freem(m); |
ipsecstat.in_polvio++; |
IPSEC_STATINC(IPSEC_STAT_IN_POLVIO); |
ipstat.ips_delivered--; |
IP_STATDEC(IP_STAT_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); |
uint64_t *ips; |
if (sbappendaddr(&last->inp_socket->so_rcv, |
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sintosa(&ripsrc), m, opts) == 0) { |
icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL, |
m_freem(m); |
0, 0); |
if (opts) |
ips = IP_STAT_GETREF(); |
m_freem(opts); |
ips[IP_STAT_NOPROTO]++; |
} else |
ips[IP_STAT_DELIVERED]--; |
sorwakeup(last->inp_socket); |
IP_STAT_PUTREF(); |
} else { |
} else |
if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) { |
m_freem(m); |
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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Line 240 rip_pcbnotify(struct inpcbtable *table, |
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Line 248 rip_pcbnotify(struct inpcbtable *table, |
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struct in_addr faddr, struct in_addr laddr, int proto, int errno, |
struct in_addr faddr, struct in_addr laddr, int proto, int errno, |
void (*notify)(struct inpcb *, int)) |
void (*notify)(struct inpcb *, int)) |
{ |
{ |
struct inpcb *inp, *ninp; |
struct inpcb_hdr *inph, *ninph; |
int nmatch; |
int nmatch; |
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nmatch = 0; |
nmatch = 0; |
for (inp = (struct inpcb *)CIRCLEQ_FIRST(&table->inpt_queue); |
TAILQ_FOREACH_SAFE(inph, &table->inpt_queue, inph_queue, ninph) { |
inp != (struct inpcb *)&table->inpt_queue; |
struct inpcb *inp = (struct inpcb *)inph; |
inp = ninp) { |
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ninp = (struct inpcb *)inp->inp_queue.cqe_next; |
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if (inp->inp_af != AF_INET) |
if (inp->inp_af != AF_INET) |
continue; |
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) |
Line 263 rip_pcbnotify(struct inpcbtable *table, |
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Line 269 rip_pcbnotify(struct inpcbtable *table, |
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} |
} |
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void * |
void * |
rip_ctlinput(int cmd, struct sockaddr *sa, void *v) |
rip_ctlinput(int cmd, const struct sockaddr *sa, void *v) |
{ |
{ |
struct ip *ip = v; |
struct ip *ip = v; |
void (*notify)(struct inpcb *, int) = in_rtchange; |
void (*notify)(struct inpcb *, int) = in_rtchange; |
Line 282 rip_ctlinput(int cmd, struct sockaddr *s |
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Line 288 rip_ctlinput(int cmd, struct sockaddr *s |
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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 297 rip_ctlinput(int cmd, struct sockaddr *s |
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Line 303 rip_ctlinput(int cmd, struct sockaddr *s |
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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 |
rip_output(struct mbuf *m, ...) |
rip_output(struct mbuf *m, struct inpcb *inp) |
{ |
{ |
struct inpcb *inp; |
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struct ip *ip; |
struct ip *ip; |
struct mbuf *opts; |
struct mbuf *opts; |
int flags; |
int flags; |
va_list ap; |
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|
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va_start(ap, m); |
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inp = va_arg(ap, struct inpcb *); |
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va_end(ap); |
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flags = |
flags = |
(inp->inp_socket->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST |
(inp->inp_socket->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST |
Line 362 rip_output(struct mbuf *m, ...) |
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Line 362 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; |
ipstat.ips_rawout++; |
IP_STATINC(IP_STAT_RAWOUT); |
} |
} |
return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, |
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inp->inp_socket, &inp->inp_errormtu)); |
/* |
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* IP output. Note: if IP_RETURNMTU flag is set, the MTU size |
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* will be stored in inp_errormtu. |
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*/ |
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return ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, |
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inp); |
} |
} |
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/* |
/* |
* Raw IP socket option processing. |
* Raw IP socket option processing. |
*/ |
*/ |
int |
int |
rip_ctloutput(int op, struct socket *so, int level, int optname, |
rip_ctloutput(int op, struct socket *so, struct sockopt *sopt) |
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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int optval; |
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if (level != IPPROTO_IP) { |
if (sopt->sopt_level == SOL_SOCKET && sopt->sopt_name == SO_NOHEADER) { |
error = ENOPROTOOPT; |
if (op == PRCO_GETOPT) { |
if (op == PRCO_SETOPT && *m != 0) |
optval = (inp->inp_flags & INP_NOHEADER) ? 1 : 0; |
(void) m_free(*m); |
error = sockopt_set(sopt, &optval, sizeof(optval)); |
} else switch (op) { |
} else if (op == PRCO_SETOPT) { |
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error = sockopt_getint(sopt, &optval); |
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if (error) |
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goto out; |
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if (optval) { |
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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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} |
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goto out; |
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} else if (sopt->sopt_level != IPPROTO_IP) |
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return ip_ctloutput(op, so, sopt); |
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switch (op) { |
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case PRCO_SETOPT: |
case PRCO_SETOPT: |
switch (optname) { |
switch (sopt->sopt_name) { |
case IP_HDRINCL: |
case IP_HDRINCL: |
if (*m == 0 || (*m)->m_len < sizeof (int)) |
error = sockopt_getint(sopt, &optval); |
error = EINVAL; |
if (error) |
else { |
break; |
if (*mtod(*m, int *)) |
if (optval) |
inp->inp_flags |= INP_HDRINCL; |
inp->inp_flags |= INP_HDRINCL; |
else |
else |
inp->inp_flags &= ~INP_HDRINCL; |
inp->inp_flags &= ~INP_HDRINCL; |
} |
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if (*m != 0) |
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(void) m_free(*m); |
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break; |
break; |
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#ifdef MROUTING |
#ifdef MROUTING |
Line 415 rip_ctloutput(int op, struct socket *so, |
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Line 431 rip_ctloutput(int op, struct socket *so, |
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case MRT_API_CONFIG: |
case MRT_API_CONFIG: |
case MRT_ADD_BW_UPCALL: |
case MRT_ADD_BW_UPCALL: |
case MRT_DEL_BW_UPCALL: |
case MRT_DEL_BW_UPCALL: |
error = ip_mrouter_set(so, optname, m); |
error = ip_mrouter_set(so, sopt); |
break; |
break; |
#endif |
#endif |
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default: |
default: |
error = ip_ctloutput(op, so, level, optname, m); |
error = ip_ctloutput(op, so, sopt); |
break; |
break; |
} |
} |
break; |
break; |
|
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case PRCO_GETOPT: |
case PRCO_GETOPT: |
switch (optname) { |
switch (sopt->sopt_name) { |
case IP_HDRINCL: |
case IP_HDRINCL: |
*m = m_get(M_WAIT, MT_SOOPTS); |
optval = inp->inp_flags & INP_HDRINCL; |
MCLAIM((*m), so->so_mowner); |
error = sockopt_set(sopt, &optval, sizeof(optval)); |
(*m)->m_len = sizeof (int); |
|
*mtod(*m, int *) = inp->inp_flags & INP_HDRINCL ? 1 : 0; |
|
break; |
break; |
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#ifdef MROUTING |
#ifdef MROUTING |
Line 439 rip_ctloutput(int op, struct socket *so, |
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Line 453 rip_ctloutput(int op, struct socket *so, |
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case MRT_ASSERT: |
case MRT_ASSERT: |
case MRT_API_SUPPORT: |
case MRT_API_SUPPORT: |
case MRT_API_CONFIG: |
case MRT_API_CONFIG: |
error = ip_mrouter_get(so, optname, m); |
error = ip_mrouter_get(so, sopt); |
break; |
break; |
#endif |
#endif |
|
|
default: |
default: |
error = ip_ctloutput(op, so, level, optname, m); |
error = ip_ctloutput(op, so, sopt); |
break; |
break; |
} |
} |
break; |
break; |
} |
} |
return (error); |
out: |
|
return error; |
} |
} |
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int |
int |
rip_bind(struct inpcb *inp, struct mbuf *nam) |
rip_connect_pcb(struct inpcb *inp, struct sockaddr_in *addr) |
{ |
{ |
struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); |
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|
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if (nam->m_len != sizeof(*addr)) |
if (IFNET_READER_EMPTY()) |
return (EINVAL); |
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if (TAILQ_FIRST(&ifnet) == 0) |
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return (EADDRNOTAVAIL); |
return (EADDRNOTAVAIL); |
if (addr->sin_family != AF_INET && |
if (addr->sin_family != AF_INET) |
addr->sin_family != AF_IMPLINK) |
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return (EAFNOSUPPORT); |
return (EAFNOSUPPORT); |
if (!in_nullhost(addr->sin_addr) && |
inp->inp_faddr = addr->sin_addr; |
ifa_ifwithaddr(sintosa(addr)) == 0) |
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return (EADDRNOTAVAIL); |
|
inp->inp_laddr = addr->sin_addr; |
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return (0); |
return (0); |
} |
} |
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int |
static void |
rip_connect(struct inpcb *inp, struct mbuf *nam) |
rip_disconnect1(struct inpcb *inp) |
{ |
{ |
struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); |
|
|
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if (nam->m_len != sizeof(*addr)) |
inp->inp_faddr = zeroin_addr; |
return (EINVAL); |
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if (TAILQ_FIRST(&ifnet) == 0) |
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return (EADDRNOTAVAIL); |
|
if (addr->sin_family != AF_INET && |
|
addr->sin_family != AF_IMPLINK) |
|
return (EAFNOSUPPORT); |
|
inp->inp_faddr = addr->sin_addr; |
|
return (0); |
|
} |
} |
|
|
void |
static int |
rip_disconnect(struct inpcb *inp) |
rip_attach(struct socket *so, int proto) |
{ |
{ |
|
struct inpcb *inp; |
|
int error; |
|
|
inp->inp_faddr = zeroin_addr; |
KASSERT(sotoinpcb(so) == NULL); |
} |
sosetlock(so); |
|
|
u_long rip_sendspace = RIPSNDQ; |
if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { |
u_long rip_recvspace = RIPRCVQ; |
error = soreserve(so, rip_sendspace, rip_recvspace); |
|
if (error) { |
|
return error; |
|
} |
|
} |
|
|
/*ARGSUSED*/ |
error = in_pcballoc(so, &rawcbtable); |
int |
if (error) { |
rip_usrreq(struct socket *so, int req, |
return error; |
struct mbuf *m, struct mbuf *nam, struct mbuf *control, struct lwp *l) |
} |
|
inp = sotoinpcb(so); |
|
inp->inp_ip.ip_p = proto; |
|
KASSERT(solocked(so)); |
|
|
|
return 0; |
|
} |
|
|
|
static void |
|
rip_detach(struct socket *so) |
{ |
{ |
struct inpcb *inp; |
struct inpcb *inp; |
struct proc *p; |
|
int s; |
KASSERT(solocked(so)); |
int error = 0; |
inp = sotoinpcb(so); |
|
KASSERT(inp != NULL); |
|
|
#ifdef MROUTING |
#ifdef MROUTING |
extern struct socket *ip_mrouter; |
extern struct socket *ip_mrouter; |
|
if (so == ip_mrouter) { |
|
ip_mrouter_done(); |
|
} |
#endif |
#endif |
|
in_pcbdetach(inp); |
|
} |
|
|
p = l ? l->l_proc : NULL; |
static int |
if (req == PRU_CONTROL) |
rip_accept(struct socket *so, struct sockaddr *nam) |
return (in_control(so, (long)m, (caddr_t)nam, |
{ |
(struct ifnet *)control, p)); |
KASSERT(solocked(so)); |
|
|
if (req == PRU_PURGEIF) { |
panic("rip_accept"); |
in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control); |
|
in_purgeif((struct ifnet *)control); |
return EOPNOTSUPP; |
in_pcbpurgeif(&rawcbtable, (struct ifnet *)control); |
} |
return (0); |
|
} |
static int |
|
rip_bind(struct socket *so, struct sockaddr *nam, struct lwp *l) |
|
{ |
|
struct inpcb *inp = sotoinpcb(so); |
|
struct sockaddr_in *addr = (struct sockaddr_in *)nam; |
|
int error = 0; |
|
int s, ss; |
|
struct ifaddr *ifa; |
|
|
|
KASSERT(solocked(so)); |
|
KASSERT(inp != NULL); |
|
KASSERT(nam != NULL); |
|
|
|
if (addr->sin_len != sizeof(*addr)) |
|
return EINVAL; |
|
|
s = splsoftnet(); |
s = splsoftnet(); |
inp = sotoinpcb(so); |
if (IFNET_READER_EMPTY()) { |
#ifdef DIAGNOSTIC |
error = EADDRNOTAVAIL; |
if (req != PRU_SEND && req != PRU_SENDOOB && control) |
goto release; |
panic("rip_usrreq: unexpected control mbuf"); |
} |
#endif |
if (addr->sin_family != AF_INET) { |
if (inp == 0 && req != PRU_ATTACH) { |
error = EAFNOSUPPORT; |
error = EINVAL; |
goto release; |
|
} |
|
ss = pserialize_read_enter(); |
|
if ((ifa = ifa_ifwithaddr(sintosa(addr))) == NULL && |
|
!in_nullhost(addr->sin_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; |
goto release; |
} |
} |
|
pserialize_read_exit(ss); |
|
|
switch (req) { |
inp->inp_laddr = addr->sin_addr; |
|
|
case PRU_ATTACH: |
release: |
if (inp != 0) { |
splx(s); |
error = EISCONN; |
return error; |
break; |
} |
} |
|
if (p == 0 || (error = suser(p->p_ucred, &p->p_acflag))) { |
|
error = EACCES; |
|
break; |
|
} |
|
if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { |
|
error = soreserve(so, rip_sendspace, rip_recvspace); |
|
if (error) |
|
break; |
|
} |
|
error = in_pcballoc(so, &rawcbtable); |
|
if (error) |
|
break; |
|
inp = sotoinpcb(so); |
|
inp->inp_ip.ip_p = (long)nam; |
|
break; |
|
|
|
case PRU_DETACH: |
static int |
#ifdef MROUTING |
rip_listen(struct socket *so, struct lwp *l) |
if (so == ip_mrouter) |
{ |
ip_mrouter_done(); |
KASSERT(solocked(so)); |
#endif |
|
in_pcbdetach(inp); |
|
break; |
|
|
|
case PRU_BIND: |
return EOPNOTSUPP; |
error = rip_bind(inp, nam); |
} |
break; |
|
|
|
case PRU_LISTEN: |
static int |
error = EOPNOTSUPP; |
rip_connect(struct socket *so, struct sockaddr *nam, struct lwp *l) |
break; |
{ |
|
struct inpcb *inp = sotoinpcb(so); |
|
int error = 0; |
|
int s; |
|
|
case PRU_CONNECT: |
KASSERT(solocked(so)); |
error = rip_connect(inp, nam); |
KASSERT(inp != NULL); |
if (error) |
KASSERT(nam != NULL); |
break; |
|
|
s = splsoftnet(); |
|
error = rip_connect_pcb(inp, (struct sockaddr_in *)nam); |
|
if (! error) |
soisconnected(so); |
soisconnected(so); |
break; |
splx(s); |
|
|
case PRU_CONNECT2: |
return error; |
error = EOPNOTSUPP; |
} |
break; |
|
|
|
case PRU_DISCONNECT: |
static int |
soisdisconnected(so); |
rip_connect2(struct socket *so, struct socket *so2) |
rip_disconnect(inp); |
{ |
break; |
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. |
* Mark the connection as being incapable of further input. |
*/ |
*/ |
case PRU_SHUTDOWN: |
s = splsoftnet(); |
socantsendmore(so); |
socantsendmore(so); |
break; |
splx(s); |
|
|
case PRU_RCVD: |
return 0; |
error = EOPNOTSUPP; |
} |
break; |
|
|
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 |
* Ship a packet out. The appropriate raw output |
* routine handles any massaging necessary. |
* routine handles any massaging necessary. |
*/ |
*/ |
case PRU_SEND: |
if (control && control->m_len) { |
if (control && control->m_len) { |
m_freem(control); |
m_freem(control); |
m_freem(m); |
|
return EINVAL; |
|
} |
|
|
|
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) { |
|
die: |
m_freem(m); |
m_freem(m); |
error = EINVAL; |
splx(s); |
break; |
return error; |
|
} |
|
} else { |
|
if ((so->so_state & SS_ISCONNECTED) == 0) { |
|
error = ENOTCONN; |
|
goto die; |
} |
} |
{ |
|
if (nam) { |
|
if ((so->so_state & SS_ISCONNECTED) != 0) { |
|
error = EISCONN; |
|
goto die; |
|
} |
|
error = rip_connect(inp, nam); |
|
if (error) { |
|
die: |
|
m_freem(m); |
|
break; |
|
} |
|
} else { |
|
if ((so->so_state & SS_ISCONNECTED) == 0) { |
|
error = ENOTCONN; |
|
goto die; |
|
} |
|
} |
|
error = rip_output(m, inp); |
|
if (nam) |
|
rip_disconnect(inp); |
|
} |
} |
break; |
error = rip_output(m, inp); |
|
if (nam) |
|
rip_disconnect1(inp); |
|
|
case PRU_SENSE: |
splx(s); |
/* |
return error; |
* stat: don't bother with a blocksize. |
} |
*/ |
|
splx(s); |
|
return (0); |
|
|
|
case PRU_RCVOOB: |
|
error = EOPNOTSUPP; |
|
break; |
|
|
|
case PRU_SENDOOB: |
static int |
m_freem(control); |
rip_sendoob(struct socket *so, struct mbuf *m, struct mbuf *control) |
m_freem(m); |
{ |
error = EOPNOTSUPP; |
KASSERT(solocked(so)); |
break; |
|
|
|
case PRU_SOCKADDR: |
m_freem(m); |
in_setsockaddr(inp, nam); |
m_freem(control); |
break; |
|
|
|
case PRU_PEERADDR: |
return EOPNOTSUPP; |
in_setpeeraddr(inp, nam); |
} |
break; |
|
|
|
default: |
static int |
panic("rip_usrreq"); |
rip_purgeif(struct socket *so, struct ifnet *ifp) |
} |
{ |
|
int s; |
|
|
release: |
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); |
splx(s); |
return (error); |
|
|
return 0; |
} |
} |
|
|
SYSCTL_SETUP(sysctl_net_inet_raw_setup, "sysctl net.inet.raw subtree setup") |
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) |
{ |
{ |
|
|
sysctl_createv(clog, 0, NULL, NULL, |
sysctl_createv(clog, 0, NULL, NULL, |
CTLFLAG_PERMANENT, |
CTLFLAG_PERMANENT, |
CTLTYPE_NODE, "net", NULL, |
|
NULL, 0, NULL, 0, |
|
CTL_NET, CTL_EOL); |
|
sysctl_createv(clog, 0, NULL, NULL, |
|
CTLFLAG_PERMANENT, |
|
CTLTYPE_NODE, "inet", NULL, |
CTLTYPE_NODE, "inet", NULL, |
NULL, 0, NULL, 0, |
NULL, 0, NULL, 0, |
CTL_NET, PF_INET, CTL_EOL); |
CTL_NET, PF_INET, CTL_EOL); |