[BACK]Return to raw_ip.c CVS log [TXT][DIR] Up to [cvs.NetBSD.org] / src / sys / netinet

Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.

Diff for /src/sys/netinet/raw_ip.c between version 1.58 and 1.70.2.2

version 1.58, 2001/11/04 20:55:28 version 1.70.2.2, 2004/08/03 10:54:43
Line 3 
Line 3 
 /*  /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.   * 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
  * modification, are permitted provided that the following conditions   * modification, are permitted provided that the following conditions
  * are met:   * are met:
Line 15 
Line 15 
  * 3. Neither the name of the project nor the names of its contributors   * 3. Neither the name of the project 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.
  *   *
  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND   * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
Line 41 
Line 41 
  * 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:  
  *      This product includes software developed by the University of  
  *      California, Berkeley and its contributors.  
  * 4. 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.
  *   *
Line 64 
Line 60 
  *      @(#)raw_ip.c    8.7 (Berkeley) 5/15/95   *      @(#)raw_ip.c    8.7 (Berkeley) 5/15/95
  */   */
   
   #include <sys/cdefs.h>
   __KERNEL_RCSID(0, "$NetBSD$");
   
   #include "opt_inet.h"
 #include "opt_ipsec.h"  #include "opt_ipsec.h"
 #include "opt_mrouting.h"  #include "opt_mrouting.h"
   
Line 95 
Line 95 
 #include <netinet6/ipsec.h>  #include <netinet6/ipsec.h>
 #endif /*IPSEC*/  #endif /*IPSEC*/
   
   #ifdef FAST_IPSEC
   #include <netipsec/ipsec.h>
   #include <netipsec/ipsec_var.h>                 /* XXX ipsecstat namespace */
   #endif  /* FAST_IPSEC*/
   
 struct inpcbtable rawcbtable;  struct inpcbtable rawcbtable;
   
   int      rip_pcbnotify __P((struct inpcbtable *, struct in_addr,
       struct in_addr, int, int, void (*) __P((struct inpcb *, int))));
 int      rip_bind __P((struct inpcb *, struct mbuf *));  int      rip_bind __P((struct inpcb *, struct mbuf *));
 int      rip_connect __P((struct inpcb *, struct mbuf *));  int      rip_connect __P((struct inpcb *, struct mbuf *));
 void     rip_disconnect __P((struct inpcb *));  void     rip_disconnect __P((struct inpcb *));
Line 121  rip_init()
Line 128  rip_init()
         in_pcbinit(&rawcbtable, 1, 1);          in_pcbinit(&rawcbtable, 1, 1);
 }  }
   
 static struct   sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET };  
   
 /*  /*
  * 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__  
 rip_input(struct mbuf *m, ...)  rip_input(struct mbuf *m, ...)
 #else  
 rip_input(m, va_alist)  
         struct mbuf *m;  
         va_dcl  
 #endif  
 {  {
         int off, proto;          int proto;
         struct ip *ip = mtod(m, struct ip *);          struct ip *ip = mtod(m, struct ip *);
           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 146  rip_input(m, va_alist)
Line 146  rip_input(m, va_alist)
         va_list ap;          va_list ap;
   
         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);
   
Line 158  rip_input(m, va_alist)
Line 158  rip_input(m, va_alist)
   
         /*          /*
          * 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.           * XXX to have the header length subtracted, and in host order.
            * XXX ip_off is also expected to be host order.
          */           */
         ip->ip_len -= ip->ip_hl << 2;          ip->ip_len = ntohs(ip->ip_len) - (ip->ip_hl << 2);
           NTOHS(ip->ip_off);
   
         CIRCLEQ_FOREACH(inp, &rawcbtable.inpt_queue, inp_queue) {          CIRCLEQ_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)                  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 174  rip_input(m, va_alist)
Line 179  rip_input(m, va_alist)
                 if (last) {                  if (last) {
                         struct mbuf *n;                          struct mbuf *n;
   
 #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 198  rip_input(m, va_alist)
Line 203  rip_input(m, va_alist)
                 }                  }
                 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 230  rip_input(m, va_alist)
Line 235  rip_input(m, va_alist)
         return;          return;
 }  }
   
   int
   rip_pcbnotify(table, faddr, laddr, proto, errno, notify)
           struct inpcbtable *table;
           struct in_addr faddr, laddr;
           int proto;
           int errno;
           void (*notify) __P((struct inpcb *, int));
   {
           struct inpcb *inp, *ninp;
           int nmatch;
   
           nmatch = 0;
           for (inp = (struct inpcb *)CIRCLEQ_FIRST(&table->inpt_queue);
               inp != (struct inpcb *)&table->inpt_queue;
               inp = ninp) {
                   ninp = (struct inpcb *)inp->inp_queue.cqe_next;
                   if (inp->inp_af != AF_INET)
                           continue;
                   if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto)
                           continue;
                   if (in_hosteq(inp->inp_faddr, faddr) &&
                       in_hosteq(inp->inp_laddr, laddr)) {
                           (*notify)(inp, errno);
                           nmatch++;
                   }
           }
   
           return nmatch;
   }
   
   void *
   rip_ctlinput(cmd, sa, v)
           int cmd;
           struct sockaddr *sa;
           void *v;
   {
           struct ip *ip = v;
           void (*notify) __P((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, satosin(sa)->sin_addr,
                       ip->ip_src, ip->ip_p, errno, notify);
   
                   /* XXX mapped address case */
           } else
                   in_pcbnotifyall(&rawcbtable, satosin(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.
  */   */
 int  int
 #if __STDC__  
 rip_output(struct mbuf *m, ...)  rip_output(struct mbuf *m, ...)
 #else  
 rip_output(m, va_alist)  
         struct mbuf *m;  
         va_dcl  
 #endif  
 {  {
         struct inpcb *inp;          struct inpcb *inp;
         struct ip *ip;          struct ip *ip;
Line 266  rip_output(m, va_alist)
Line 328  rip_output(m, va_alist)
                         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);
                   if (!m)
                           return (ENOBUFS);
                 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 = inp->inp_ip.ip_p;                  ip->ip_p = inp->inp_ip.ip_p;
                 ip->ip_len = m->m_pkthdr.len;                  ip->ip_len = htons(m->m_pkthdr.len);
                 ip->ip_src = inp->inp_laddr;                  ip->ip_src = inp->inp_laddr;
                 ip->ip_dst = inp->inp_faddr;                  ip->ip_dst = inp->inp_faddr;
                 ip->ip_ttl = MAXTTL;                  ip->ip_ttl = MAXTTL;
Line 282  rip_output(m, va_alist)
Line 346  rip_output(m, va_alist)
                         return (EMSGSIZE);                          return (EMSGSIZE);
                 }                  }
                 ip = mtod(m, struct ip *);                  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)
                                   return (ENOMEM);        /* XXX */
                           ip = mtod(m, struct ip *);
                   }
   
                   /* 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);
                         return (EINVAL);                          return (EINVAL);
                 }                  }
                   HTONS(ip->ip_len);
                   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          return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions,
         if (ipsec_setsocket(m, inp->inp_socket) != 0) {               inp->inp_socket, &inp->inp_errormtu));
                 m_freem(m);  
                 return ENOBUFS;  
         }  
 #endif /*IPSEC*/  
         return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, &inp->inp_errormtu));  
 }  }
   
 /*  /*
Line 357  rip_ctloutput(op, so, level, optname, m)
Line 434  rip_ctloutput(op, so, level, optname, m)
         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);
                           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 430  u_long rip_recvspace = RIPRCVQ;
Line 508  u_long rip_recvspace = RIPRCVQ;
   
 /*ARGSUSED*/  /*ARGSUSED*/
 int  int
 rip_usrreq(so, req, m, nam, control, p)  rip_usrreq(so, req, m, nam, control, l)
         struct socket *so;          struct socket *so;
         int req;          int req;
         struct mbuf *m, *nam, *control;          struct mbuf *m, *nam, *control;
         struct proc *p;          struct lwp *l;
 {  {
         struct inpcb *inp;          struct inpcb *inp;
           struct proc *p;
         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
   
           p = l ? l->l_proc : NULL;
         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, p));

Legend:
Removed from v.1.58  
changed lines
  Added in v.1.70.2.2

CVSweb <webmaster@jp.NetBSD.org>