7308ec6890
IPCP, CCP and LCP are now just derived FSMs. Comment each of the FSM implementations so that we can tell what's going on. Revise the state transitions so that CCP and IPCP actually send terminate REQs when appropriate. The OS & IPCP layers are still like spagetti (next job).
583 lines
15 KiB
C
583 lines
15 KiB
C
/*
|
|
* PPP Routing related Module
|
|
*
|
|
* Written by Toshiharu OHNO (tony-o@iij.ad.jp)
|
|
*
|
|
* Copyright (C) 1994, Internet Initiative Japan, Inc. All rights reserverd.
|
|
*
|
|
* Redistribution and use in source and binary forms are permitted
|
|
* provided that the above copyright notice and this paragraph are
|
|
* duplicated in all such forms and that any documentation,
|
|
* advertising materials, and other materials related to such
|
|
* distribution and use acknowledge that the software was developed
|
|
* by the Internet Initiative Japan, Inc. The name of the
|
|
* IIJ may not be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
*
|
|
* $Id: route.c,v 1.42.2.2 1998/01/30 19:46:05 brian Exp $
|
|
*
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/time.h>
|
|
#include <sys/socket.h>
|
|
#include <net/if_types.h>
|
|
#include <net/route.h>
|
|
#include <net/if.h>
|
|
#include <netinet/in.h>
|
|
#include <arpa/inet.h>
|
|
#include <net/if_dl.h>
|
|
|
|
#include <errno.h>
|
|
#include <machine/endian.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/sysctl.h>
|
|
#include <unistd.h>
|
|
|
|
#include "command.h"
|
|
#include "mbuf.h"
|
|
#include "log.h"
|
|
#include "loadalias.h"
|
|
#include "defs.h"
|
|
#include "vars.h"
|
|
#include "id.h"
|
|
#include "os.h"
|
|
#include "iplist.h"
|
|
#include "timer.h"
|
|
#include "throughput.h"
|
|
#include "hdlc.h"
|
|
#include "link.h"
|
|
#include "fsm.h"
|
|
#include "ipcp.h"
|
|
#include "route.h"
|
|
|
|
static int IfIndex;
|
|
|
|
struct rtmsg {
|
|
struct rt_msghdr m_rtm;
|
|
char m_space[64];
|
|
};
|
|
|
|
static int seqno;
|
|
|
|
void
|
|
OsSetRoute(int cmd,
|
|
struct in_addr dst,
|
|
struct in_addr gateway,
|
|
struct in_addr mask,
|
|
int bang)
|
|
{
|
|
struct rtmsg rtmes;
|
|
int s, nb, wb;
|
|
char *cp;
|
|
const char *cmdstr;
|
|
struct sockaddr_in rtdata;
|
|
|
|
if (bang)
|
|
cmdstr = (cmd == RTM_ADD ? "Add!" : "Delete!");
|
|
else
|
|
cmdstr = (cmd == RTM_ADD ? "Add" : "Delete");
|
|
s = ID0socket(PF_ROUTE, SOCK_RAW, 0);
|
|
if (s < 0) {
|
|
LogPrintf(LogERROR, "OsSetRoute: socket(): %s\n", strerror(errno));
|
|
return;
|
|
}
|
|
memset(&rtmes, '\0', sizeof rtmes);
|
|
rtmes.m_rtm.rtm_version = RTM_VERSION;
|
|
rtmes.m_rtm.rtm_type = cmd;
|
|
rtmes.m_rtm.rtm_addrs = RTA_DST;
|
|
rtmes.m_rtm.rtm_seq = ++seqno;
|
|
rtmes.m_rtm.rtm_pid = getpid();
|
|
rtmes.m_rtm.rtm_flags = RTF_UP | RTF_GATEWAY | RTF_STATIC;
|
|
|
|
memset(&rtdata, '\0', sizeof rtdata);
|
|
rtdata.sin_len = 16;
|
|
rtdata.sin_family = AF_INET;
|
|
rtdata.sin_port = 0;
|
|
rtdata.sin_addr = dst;
|
|
|
|
cp = rtmes.m_space;
|
|
memcpy(cp, &rtdata, 16);
|
|
cp += 16;
|
|
if (cmd == RTM_ADD)
|
|
if (gateway.s_addr == INADDR_ANY) {
|
|
/* Add a route through the interface */
|
|
struct sockaddr_dl dl;
|
|
const char *iname;
|
|
int ilen;
|
|
|
|
iname = Index2Nam(IfIndex);
|
|
ilen = strlen(iname);
|
|
dl.sdl_len = sizeof dl - sizeof dl.sdl_data + ilen;
|
|
dl.sdl_family = AF_LINK;
|
|
dl.sdl_index = IfIndex;
|
|
dl.sdl_type = 0;
|
|
dl.sdl_nlen = ilen;
|
|
dl.sdl_alen = 0;
|
|
dl.sdl_slen = 0;
|
|
strncpy(dl.sdl_data, iname, sizeof dl.sdl_data);
|
|
|
|
memcpy(cp, &dl, dl.sdl_len);
|
|
cp += dl.sdl_len;
|
|
rtmes.m_rtm.rtm_addrs |= RTA_GATEWAY;
|
|
} else {
|
|
rtdata.sin_addr = gateway;
|
|
memcpy(cp, &rtdata, 16);
|
|
cp += 16;
|
|
rtmes.m_rtm.rtm_addrs |= RTA_GATEWAY;
|
|
}
|
|
|
|
if (dst.s_addr == INADDR_ANY)
|
|
mask.s_addr = INADDR_ANY;
|
|
|
|
if (cmd == RTM_ADD || dst.s_addr == INADDR_ANY) {
|
|
rtdata.sin_addr = mask;
|
|
memcpy(cp, &rtdata, 16);
|
|
cp += 16;
|
|
rtmes.m_rtm.rtm_addrs |= RTA_NETMASK;
|
|
}
|
|
|
|
nb = cp - (char *) &rtmes;
|
|
rtmes.m_rtm.rtm_msglen = nb;
|
|
wb = ID0write(s, &rtmes, nb);
|
|
if (wb < 0) {
|
|
LogPrintf(LogTCPIP, "OsSetRoute failure:\n");
|
|
LogPrintf(LogTCPIP, "OsSetRoute: Cmd = %s\n", cmd);
|
|
LogPrintf(LogTCPIP, "OsSetRoute: Dst = %s\n", inet_ntoa(dst));
|
|
LogPrintf(LogTCPIP, "OsSetRoute: Gateway = %s\n", inet_ntoa(gateway));
|
|
LogPrintf(LogTCPIP, "OsSetRoute: Mask = %s\n", inet_ntoa(mask));
|
|
failed:
|
|
if (cmd == RTM_ADD && (rtmes.m_rtm.rtm_errno == EEXIST ||
|
|
(rtmes.m_rtm.rtm_errno == 0 && errno == EEXIST)))
|
|
if (!bang)
|
|
LogPrintf(LogWARN, "Add route failed: %s already exists\n",
|
|
inet_ntoa(dst));
|
|
else {
|
|
rtmes.m_rtm.rtm_type = cmd = RTM_CHANGE;
|
|
if ((wb = ID0write(s, &rtmes, nb)) < 0)
|
|
goto failed;
|
|
}
|
|
else if (cmd == RTM_DELETE &&
|
|
(rtmes.m_rtm.rtm_errno == ESRCH ||
|
|
(rtmes.m_rtm.rtm_errno == 0 && errno == ESRCH))) {
|
|
if (!bang)
|
|
LogPrintf(LogWARN, "Del route failed: %s: Non-existent\n",
|
|
inet_ntoa(dst));
|
|
} else if (rtmes.m_rtm.rtm_errno == 0)
|
|
LogPrintf(LogWARN, "%s route failed: %s: errno: %s\n", cmdstr,
|
|
inet_ntoa(dst), strerror(errno));
|
|
else
|
|
LogPrintf(LogWARN, "%s route failed: %s: %s\n",
|
|
cmdstr, inet_ntoa(dst), strerror(rtmes.m_rtm.rtm_errno));
|
|
}
|
|
LogPrintf(LogDEBUG, "wrote %d: cmd = %s, dst = %x, gateway = %x\n",
|
|
wb, cmdstr, dst.s_addr, gateway.s_addr);
|
|
close(s);
|
|
}
|
|
|
|
static void
|
|
p_sockaddr(struct sockaddr *phost, struct sockaddr *pmask, int width)
|
|
{
|
|
char buf[29];
|
|
struct sockaddr_in *ihost = (struct sockaddr_in *)phost;
|
|
struct sockaddr_in *mask = (struct sockaddr_in *)pmask;
|
|
struct sockaddr_dl *dl = (struct sockaddr_dl *)phost;
|
|
|
|
switch (phost->sa_family) {
|
|
case AF_INET:
|
|
if (!phost)
|
|
buf[0] = '\0';
|
|
else if (ihost->sin_addr.s_addr == INADDR_ANY)
|
|
strcpy(buf, "default");
|
|
else if (!mask)
|
|
strcpy(buf, inet_ntoa(ihost->sin_addr));
|
|
else {
|
|
u_int msk = ntohl(mask->sin_addr.s_addr);
|
|
u_int tst;
|
|
int bits;
|
|
int len;
|
|
struct sockaddr_in net;
|
|
|
|
for (tst = 1, bits=32; tst; tst <<= 1, bits--)
|
|
if (msk & tst)
|
|
break;
|
|
|
|
for (tst <<=1; tst; tst <<= 1)
|
|
if (!(msk & tst))
|
|
break;
|
|
|
|
net.sin_addr.s_addr = ihost->sin_addr.s_addr & mask->sin_addr.s_addr;
|
|
strcpy(buf, inet_ntoa(net.sin_addr));
|
|
for (len = strlen(buf); len > 3; buf[len-=2] = '\0')
|
|
if (strcmp(buf+len-2, ".0"))
|
|
break;
|
|
|
|
if (tst) /* non-contiguous :-( */
|
|
sprintf(buf+strlen(buf),"&0x%08x", msk);
|
|
else
|
|
sprintf(buf+strlen(buf), "/%d", bits);
|
|
}
|
|
break;
|
|
|
|
case AF_LINK:
|
|
if (dl->sdl_nlen)
|
|
snprintf(buf, sizeof buf, "%.*s", dl->sdl_nlen, dl->sdl_data);
|
|
else if (dl->sdl_alen)
|
|
if (dl->sdl_type == IFT_ETHER)
|
|
if (dl->sdl_alen < sizeof buf / 3) {
|
|
int f;
|
|
u_char *MAC;
|
|
|
|
MAC = (u_char *)dl->sdl_data + dl->sdl_nlen;
|
|
for (f = 0; f < dl->sdl_alen; f++)
|
|
sprintf(buf+f*3, "%02x:", MAC[f]);
|
|
buf[f*3-1] = '\0';
|
|
} else
|
|
strcpy(buf, "??:??:??:??:??:??");
|
|
else
|
|
sprintf(buf, "<IFT type %d>", dl->sdl_type);
|
|
else if (dl->sdl_slen)
|
|
sprintf(buf, "<slen %d?>", dl->sdl_slen);
|
|
else
|
|
sprintf(buf, "link#%d", dl->sdl_index);
|
|
break;
|
|
|
|
default:
|
|
sprintf(buf, "<AF type %d>", phost->sa_family);
|
|
break;
|
|
}
|
|
|
|
fprintf(VarTerm, "%-*s ", width-1, buf);
|
|
}
|
|
|
|
static struct bits {
|
|
u_long b_mask;
|
|
char b_val;
|
|
} bits[] = {
|
|
{ RTF_UP, 'U' },
|
|
{ RTF_GATEWAY, 'G' },
|
|
{ RTF_HOST, 'H' },
|
|
{ RTF_REJECT, 'R' },
|
|
{ RTF_DYNAMIC, 'D' },
|
|
{ RTF_MODIFIED, 'M' },
|
|
{ RTF_DONE, 'd' },
|
|
{ RTF_CLONING, 'C' },
|
|
{ RTF_XRESOLVE, 'X' },
|
|
{ RTF_LLINFO, 'L' },
|
|
{ RTF_STATIC, 'S' },
|
|
{ RTF_PROTO1, '1' },
|
|
{ RTF_PROTO2, '2' },
|
|
{ RTF_BLACKHOLE, 'B' },
|
|
#ifdef RTF_WASCLONED
|
|
{ RTF_WASCLONED, 'W' },
|
|
#endif
|
|
#ifdef RTF_PRCLONING
|
|
{ RTF_PRCLONING, 'c' },
|
|
#endif
|
|
#ifdef RTF_PROTO3
|
|
{ RTF_PROTO3, '3' },
|
|
#endif
|
|
#ifdef RTF_BROADCAST
|
|
{ RTF_BROADCAST, 'b' },
|
|
#endif
|
|
{ 0, '\0' }
|
|
};
|
|
|
|
#ifndef RTF_WASCLONED
|
|
#define RTF_WASCLONED (0)
|
|
#endif
|
|
|
|
static void
|
|
p_flags(u_long f, int max)
|
|
{
|
|
if (VarTerm) {
|
|
char name[33], *flags;
|
|
register struct bits *p = bits;
|
|
|
|
if (max > sizeof name - 1)
|
|
max = sizeof name - 1;
|
|
|
|
for (flags = name; p->b_mask && flags - name < max; p++)
|
|
if (p->b_mask & f)
|
|
*flags++ = p->b_val;
|
|
*flags = '\0';
|
|
fprintf(VarTerm, "%-*.*s", max, max, name);
|
|
}
|
|
}
|
|
|
|
const char *
|
|
Index2Nam(int idx)
|
|
{
|
|
static char **ifs;
|
|
static int nifs, debug_done;
|
|
|
|
if (!nifs) {
|
|
int mib[6], have, had;
|
|
size_t needed;
|
|
char *buf, *ptr, *end;
|
|
struct sockaddr_dl *dl;
|
|
struct if_msghdr *ifm;
|
|
|
|
mib[0] = CTL_NET;
|
|
mib[1] = PF_ROUTE;
|
|
mib[2] = 0;
|
|
mib[3] = 0;
|
|
mib[4] = NET_RT_IFLIST;
|
|
mib[5] = 0;
|
|
|
|
if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
|
|
LogPrintf(LogERROR, "Index2Nam: sysctl: estimate: %s\n", strerror(errno));
|
|
return "???";
|
|
}
|
|
if ((buf = malloc(needed)) == NULL)
|
|
return "???";
|
|
if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) {
|
|
free(buf);
|
|
return "???";
|
|
}
|
|
end = buf + needed;
|
|
|
|
have = 0;
|
|
for (ptr = buf; ptr < end; ptr += ifm->ifm_msglen) {
|
|
ifm = (struct if_msghdr *)ptr;
|
|
dl = (struct sockaddr_dl *)(ifm + 1);
|
|
if (ifm->ifm_index > 0) {
|
|
if (ifm->ifm_index > have) {
|
|
had = have;
|
|
have = ifm->ifm_index + 5;
|
|
if (had)
|
|
ifs = (char **)realloc(ifs, sizeof(char *) * have);
|
|
else
|
|
ifs = (char **)malloc(sizeof(char *) * have);
|
|
if (!ifs) {
|
|
LogPrintf(LogDEBUG, "Index2Nam: %s\n", strerror(errno));
|
|
nifs = 0;
|
|
return "???";
|
|
}
|
|
memset(ifs + had, '\0', sizeof(char *) * (have - had));
|
|
}
|
|
if (ifs[ifm->ifm_index-1] == NULL) {
|
|
ifs[ifm->ifm_index-1] = (char *)malloc(dl->sdl_nlen+1);
|
|
memcpy(ifs[ifm->ifm_index-1], dl->sdl_data, dl->sdl_nlen);
|
|
ifs[ifm->ifm_index-1][dl->sdl_nlen] = '\0';
|
|
if (nifs < ifm->ifm_index)
|
|
nifs = ifm->ifm_index;
|
|
}
|
|
} else if (LogIsKept(LogDEBUG))
|
|
LogPrintf(LogDEBUG, "Skipping out-of-range interface %d!\n",
|
|
ifm->ifm_index);
|
|
}
|
|
free(buf);
|
|
}
|
|
|
|
if (LogIsKept(LogDEBUG) && !debug_done) {
|
|
int f;
|
|
|
|
LogPrintf(LogDEBUG, "Found the following interfaces:\n");
|
|
for (f = 0; f < nifs; f++)
|
|
if (ifs[f] != NULL)
|
|
LogPrintf(LogDEBUG, " Index %d, name \"%s\"\n", f+1, ifs[f]);
|
|
debug_done = 1;
|
|
}
|
|
|
|
if (idx < 1 || idx > nifs || ifs[idx-1] == NULL)
|
|
return "???";
|
|
|
|
return ifs[idx-1];
|
|
}
|
|
|
|
int
|
|
ShowRoute(struct cmdargs const *arg)
|
|
{
|
|
struct rt_msghdr *rtm;
|
|
struct sockaddr *sa_dst, *sa_gw, *sa_mask;
|
|
char *sp, *ep, *cp, *wp;
|
|
size_t needed;
|
|
int mib[6];
|
|
|
|
if (!VarTerm)
|
|
return 1;
|
|
|
|
mib[0] = CTL_NET;
|
|
mib[1] = PF_ROUTE;
|
|
mib[2] = 0;
|
|
mib[3] = 0;
|
|
mib[4] = NET_RT_DUMP;
|
|
mib[5] = 0;
|
|
if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
|
|
LogPrintf(LogERROR, "ShowRoute: sysctl: estimate: %s\n", strerror(errno));
|
|
return (1);
|
|
}
|
|
if (needed < 0)
|
|
return (1);
|
|
sp = malloc(needed);
|
|
if (sp == NULL)
|
|
return (1);
|
|
if (sysctl(mib, 6, sp, &needed, NULL, 0) < 0) {
|
|
LogPrintf(LogERROR, "ShowRoute: sysctl: getroute: %s\n", strerror(errno));
|
|
free(sp);
|
|
return (1);
|
|
}
|
|
ep = sp + needed;
|
|
|
|
fprintf(VarTerm, "%-20s%-20sFlags Netif\n", "Destination", "Gateway");
|
|
for (cp = sp; cp < ep; cp += rtm->rtm_msglen) {
|
|
rtm = (struct rt_msghdr *) cp;
|
|
wp = (char *)(rtm+1);
|
|
|
|
if (rtm->rtm_addrs & RTA_DST) {
|
|
sa_dst = (struct sockaddr *)wp;
|
|
wp += sa_dst->sa_len;
|
|
} else
|
|
sa_dst = NULL;
|
|
|
|
if (rtm->rtm_addrs & RTA_GATEWAY) {
|
|
sa_gw = (struct sockaddr *)wp;
|
|
wp += sa_gw->sa_len;
|
|
} else
|
|
sa_gw = NULL;
|
|
|
|
if (rtm->rtm_addrs & RTA_NETMASK) {
|
|
sa_mask = (struct sockaddr *)wp;
|
|
wp += sa_mask->sa_len;
|
|
} else
|
|
sa_mask = NULL;
|
|
|
|
p_sockaddr(sa_dst, sa_mask, 20);
|
|
p_sockaddr(sa_gw, NULL, 20);
|
|
|
|
p_flags(rtm->rtm_flags, 6);
|
|
fprintf(VarTerm, " %s\n", Index2Nam(rtm->rtm_index));
|
|
}
|
|
free(sp);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Delete routes associated with our interface
|
|
*/
|
|
void
|
|
DeleteIfRoutes(int all)
|
|
{
|
|
struct rt_msghdr *rtm;
|
|
struct sockaddr *sa;
|
|
struct in_addr sa_dst, sa_none;
|
|
int pass;
|
|
size_t needed;
|
|
char *sp, *cp, *ep;
|
|
int mib[6];
|
|
|
|
LogPrintf(LogDEBUG, "DeleteIfRoutes (%d)\n", IfIndex);
|
|
sa_none.s_addr = INADDR_ANY;
|
|
|
|
mib[0] = CTL_NET;
|
|
mib[1] = PF_ROUTE;
|
|
mib[2] = 0;
|
|
mib[3] = 0;
|
|
mib[4] = NET_RT_DUMP;
|
|
mib[5] = 0;
|
|
if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) {
|
|
LogPrintf(LogERROR, "DeleteIfRoutes: sysctl: estimate: %s\n",
|
|
strerror(errno));
|
|
return;
|
|
}
|
|
if (needed < 0)
|
|
return;
|
|
|
|
sp = malloc(needed);
|
|
if (sp == NULL)
|
|
return;
|
|
|
|
if (sysctl(mib, 6, sp, &needed, NULL, 0) < 0) {
|
|
LogPrintf(LogERROR, "DeleteIfRoutes: sysctl: getroute: %s\n",
|
|
strerror(errno));
|
|
free(sp);
|
|
return;
|
|
}
|
|
ep = sp + needed;
|
|
|
|
for (pass = 0; pass < 2; pass++) {
|
|
/*
|
|
* We do 2 passes. The first deletes all cloned routes. The second
|
|
* deletes all non-cloned routes. This is necessary to avoid
|
|
* potential errors from trying to delete route X after route Y where
|
|
* route X was cloned from route Y (which is no longer there).
|
|
*/
|
|
if (RTF_WASCLONED == 0 && pass == 0)
|
|
/* So we can't tell ! */
|
|
continue;
|
|
for (cp = sp; cp < ep; cp += rtm->rtm_msglen) {
|
|
rtm = (struct rt_msghdr *) cp;
|
|
sa = (struct sockaddr *) (rtm + 1);
|
|
LogPrintf(LogDEBUG, "DeleteIfRoutes: addrs: %x, Netif: %d (%s),"
|
|
" flags: %x, dst: %s ?\n", rtm->rtm_addrs, rtm->rtm_index,
|
|
Index2Nam(rtm->rtm_index), rtm->rtm_flags,
|
|
inet_ntoa(((struct sockaddr_in *) sa)->sin_addr));
|
|
if (rtm->rtm_addrs & RTA_DST && rtm->rtm_addrs & RTA_GATEWAY &&
|
|
rtm->rtm_index == IfIndex &&
|
|
(all || (rtm->rtm_flags & RTF_GATEWAY))) {
|
|
sa_dst.s_addr = ((struct sockaddr_in *)sa)->sin_addr.s_addr;
|
|
sa = (struct sockaddr *)((char *)sa + sa->sa_len);
|
|
if (sa->sa_family == AF_INET || sa->sa_family == AF_LINK) {
|
|
if ((pass == 0 && (rtm->rtm_flags & RTF_WASCLONED)) ||
|
|
(pass == 1 && !(rtm->rtm_flags & RTF_WASCLONED))) {
|
|
LogPrintf(LogDEBUG, "DeleteIfRoutes: Remove it (pass %d)\n", pass);
|
|
OsSetRoute(RTM_DELETE, sa_dst, sa_none, sa_none, 0);
|
|
} else
|
|
LogPrintf(LogDEBUG, "DeleteIfRoutes: Skip it (pass %d)\n", pass);
|
|
} else
|
|
LogPrintf(LogDEBUG,
|
|
"DeleteIfRoutes: Can't remove routes of %d family !\n",
|
|
sa->sa_family);
|
|
}
|
|
}
|
|
}
|
|
free(sp);
|
|
}
|
|
|
|
int
|
|
GetIfIndex(char *name)
|
|
{
|
|
int idx;
|
|
const char *got;
|
|
|
|
idx = 1;
|
|
while (strcmp(got = Index2Nam(idx), "???"))
|
|
if (!strcmp(got, name))
|
|
return IfIndex = idx;
|
|
else
|
|
idx++;
|
|
return -1;
|
|
}
|
|
|
|
struct in_addr
|
|
ChooseHisAddr(const struct in_addr gw)
|
|
{
|
|
struct in_addr try;
|
|
int f;
|
|
|
|
for (f = 0; f < IpcpInfo.DefHisChoice.nItems; f++) {
|
|
try = iplist_next(&IpcpInfo.DefHisChoice);
|
|
LogPrintf(LogDEBUG, "ChooseHisAddr: Check item %d (%s)\n",
|
|
f, inet_ntoa(try));
|
|
if (OsTrySetIpaddress(gw, try) == 0) {
|
|
LogPrintf(LogIPCP, "ChooseHisAddr: Selected IP address %s\n",
|
|
inet_ntoa(try));
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (f == IpcpInfo.DefHisChoice.nItems) {
|
|
LogPrintf(LogDEBUG, "ChooseHisAddr: All addresses in use !\n");
|
|
try.s_addr = INADDR_ANY;
|
|
}
|
|
|
|
return try;
|
|
}
|