mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-08-21 21:58:03 +03:00
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@1417 3c298f89-4303-0410-b956-a3cf2f4a3e73
254 lines
9.3 KiB
Diff
254 lines
9.3 KiB
Diff
--- ppp/pppd/ipcp.c Wed May 31 17:20:41 2000
|
|
+++ ppp/pppd/ipcp.c Wed May 31 17:27:19 2000
|
|
@@ -145,7 +145,17 @@
|
|
{ "-defaultroute", o_bool, &ipcp_allowoptions[0].default_route,
|
|
"disable defaultroute option", OPT_A2COPY,
|
|
&ipcp_wantoptions[0].default_route },
|
|
|
|
+#ifdef __linux__
|
|
+ { "replacedefaultroute", o_bool,
|
|
+ &ipcp_wantoptions[0].replace_default_route,
|
|
+ "Replace default route", 1
|
|
+ },
|
|
+ { "noreplacedefaultroute", o_bool,
|
|
+ &ipcp_allowoptions[0].replace_default_route,
|
|
+ "Never replace default route", OPT_A2COPY,
|
|
+ &ipcp_wantoptions[0].replace_default_route },
|
|
+#endif
|
|
{ "proxyarp", o_bool, &ipcp_wantoptions[0].proxy_arp,
|
|
"Add proxy ARP entry", OPT_ENABLE|1, &ipcp_allowoptions[0].proxy_arp },
|
|
{ "noproxyarp", o_bool, &ipcp_allowoptions[0].proxy_arp,
|
|
@@ -195,7 +205,7 @@
|
|
ip_active_pkt
|
|
};
|
|
|
|
-static void ipcp_clear_addrs __P((int, u_int32_t, u_int32_t));
|
|
+static void ipcp_clear_addrs __P((int, u_int32_t, u_int32_t, bool));
|
|
static void ipcp_script __P((char *)); /* Run an up/down script */
|
|
static void ipcp_script_done __P((void *));
|
|
|
|
@@ -1344,7 +1354,12 @@
|
|
if (!sifnpmode(u, PPP_IP, NPMODE_QUEUE))
|
|
return 0;
|
|
if (wo->default_route)
|
|
+#ifndef __linux__
|
|
if (sifdefaultroute(u, wo->ouraddr, wo->hisaddr))
|
|
+#else
|
|
+ if (sifdefaultroute(u, wo->ouraddr, wo->hisaddr,
|
|
+ wo->replace_default_route))
|
|
+#endif
|
|
default_route_set[u] = 1;
|
|
if (wo->proxy_arp)
|
|
if (sifproxyarp(u, wo->hisaddr))
|
|
@@ -1420,7 +1435,8 @@
|
|
*/
|
|
if (demand) {
|
|
if (go->ouraddr != wo->ouraddr || ho->hisaddr != wo->hisaddr) {
|
|
- ipcp_clear_addrs(f->unit, wo->ouraddr, wo->hisaddr);
|
|
+ ipcp_clear_addrs(f->unit, wo->ouraddr, wo->hisaddr,
|
|
+ wo->replace_default_route);
|
|
if (go->ouraddr != wo->ouraddr) {
|
|
warn("Local IP address changed to %I", go->ouraddr);
|
|
script_setenv("OLDIPLOCAL", ip_ntoa(wo->ouraddr));
|
|
@@ -1445,7 +1461,12 @@
|
|
|
|
/* assign a default route through the interface if required */
|
|
if (ipcp_wantoptions[f->unit].default_route)
|
|
+#ifndef __linux__
|
|
if (sifdefaultroute(f->unit, go->ouraddr, ho->hisaddr))
|
|
+#else
|
|
+ if (sifdefaultroute(f->unit, go->ouraddr, ho->hisaddr,
|
|
+ wo->replace_default_route))
|
|
+#endif
|
|
default_route_set[f->unit] = 1;
|
|
|
|
/* Make a proxy ARP entry if requested. */
|
|
@@ -1492,7 +1513,12 @@
|
|
|
|
/* assign a default route through the interface if required */
|
|
if (ipcp_wantoptions[f->unit].default_route)
|
|
+#ifndef __linux__
|
|
if (sifdefaultroute(f->unit, go->ouraddr, ho->hisaddr))
|
|
+#else
|
|
+ if (sifdefaultroute(f->unit, go->ouraddr, ho->hisaddr,
|
|
+ wo->replace_default_route))
|
|
+#endif
|
|
default_route_set[f->unit] = 1;
|
|
|
|
/* Make a proxy ARP entry if requested. */
|
|
@@ -1559,7 +1585,7 @@
|
|
sifnpmode(f->unit, PPP_IP, NPMODE_DROP);
|
|
sifdown(f->unit);
|
|
ipcp_clear_addrs(f->unit, ipcp_gotoptions[f->unit].ouraddr,
|
|
- ipcp_hisoptions[f->unit].hisaddr);
|
|
+ ipcp_hisoptions[f->unit].hisaddr, 0);
|
|
}
|
|
|
|
/* Execute the ip-down script */
|
|
@@ -1575,16 +1601,25 @@
|
|
* proxy arp entries, etc.
|
|
*/
|
|
static void
|
|
-ipcp_clear_addrs(unit, ouraddr, hisaddr)
|
|
+ipcp_clear_addrs(unit, ouraddr, hisaddr, replacedefaultroute)
|
|
int unit;
|
|
u_int32_t ouraddr; /* local address */
|
|
u_int32_t hisaddr; /* remote address */
|
|
+ bool replacedefaultroute;
|
|
{
|
|
if (proxy_arp_set[unit]) {
|
|
cifproxyarp(unit, hisaddr);
|
|
proxy_arp_set[unit] = 0;
|
|
}
|
|
- if (default_route_set[unit]) {
|
|
+ /* If replacedefaultroute, sifdefaultroute will be called soon
|
|
+ * with replacedefaultroute set and that will overwrite the current
|
|
+ * default route. This is the case only when doing demand, otherwise
|
|
+ * during demand, this cifdefaultroute would restore the old default
|
|
+ * route which is not what we want in this case. In the non-demand
|
|
+ * case, we'll delete the default route and restore the old if there
|
|
+ * is one saved by an sifdefaultroute with replacedefaultroute.
|
|
+ */
|
|
+ if (!replacedefaultroute && default_route_set[unit]) {
|
|
cifdefaultroute(unit, ouraddr, hisaddr);
|
|
default_route_set[unit] = 0;
|
|
}
|
|
--- ppp/pppd/ipcp.h Wed May 31 17:20:41 2000
|
|
+++ ppp/pppd/ipcp.h Wed May 31 15:56:17 2000
|
|
@@ -47,6 +47,7 @@
|
|
bool old_addrs; /* Use old (IP-Addresses) option? */
|
|
bool req_addr; /* Ask peer to send IP address? */
|
|
bool default_route; /* Assign default route through interface? */
|
|
+ bool replace_default_route; /* Replace default route through interface? */
|
|
bool proxy_arp; /* Make proxy ARP entry for peer? */
|
|
bool neg_vj; /* Van Jacobson Compression? */
|
|
bool old_vj; /* use old (short) form of VJ option? */
|
|
--- ppp/pppd/pppd.h Wed May 31 17:20:41 2000
|
|
+++ ppp/pppd/pppd.h Wed May 31 15:56:17 2000
|
|
@@ -416,7 +416,11 @@
|
|
int cif6addr __P((int, eui64_t, eui64_t));
|
|
/* Remove an IPv6 address from i/f */
|
|
#endif
|
|
+#ifndef __linux__
|
|
int sifdefaultroute __P((int, u_int32_t, u_int32_t));
|
|
+#else
|
|
+int sifdefaultroute __P((int, u_int32_t, u_int32_t, bool replace_default_rt));
|
|
+#endif
|
|
/* Create default route through i/f */
|
|
int cifdefaultroute __P((int, u_int32_t, u_int32_t));
|
|
/* Delete default route through i/f */
|
|
--- ppp/pppd/sys-linux.c Wed May 31 17:20:41 2000
|
|
+++ ppp/pppd/sys-linux.c Wed May 31 17:37:23 2000
|
|
@@ -143,6 +143,8 @@
|
|
|
|
static int if_is_up; /* Interface has been marked up */
|
|
static u_int32_t default_route_gateway; /* Gateway for default route added */
|
|
+static struct rtentry old_def_rt; /* Old default route */
|
|
+static int default_rt_repl_rest; /* replace and restore old default rt */
|
|
static u_int32_t proxy_arp_addr; /* Addr for proxy arp entry added */
|
|
static char proxy_arp_dev[16]; /* Device for proxy arp entry */
|
|
static u_int32_t our_old_addr; /* for detecting address changes */
|
|
@@ -1209,6 +1211,9 @@
|
|
p = NULL;
|
|
}
|
|
|
|
+ SET_SA_FAMILY (rt->rt_dst, AF_INET);
|
|
+ SET_SA_FAMILY (rt->rt_gateway, AF_INET);
|
|
+
|
|
SIN_ADDR(rt->rt_dst) = strtoul(cols[route_dest_col], NULL, 16);
|
|
SIN_ADDR(rt->rt_gateway) = strtoul(cols[route_gw_col], NULL, 16);
|
|
SIN_ADDR(rt->rt_genmask) = strtoul(cols[route_mask_col], NULL, 16);
|
|
@@ -1278,19 +1283,53 @@
|
|
/********************************************************************
|
|
*
|
|
* sifdefaultroute - assign a default route through the address given.
|
|
+ *
|
|
+ * If the global default_rt_repl_rest flag is set, then this function
|
|
+ * already replaced the original system defaultroute with some other
|
|
+ * route and it should just replace the current defaultroute with
|
|
+ * another one, without saving the current route. Use: demand mode,
|
|
+ * when pppd sets first a defaultroute it it's temporary ppp0 addresses
|
|
+ * and then changes the temporary addresses to the addresses for the real
|
|
+ * ppp connection when it has come up.
|
|
*/
|
|
|
|
-int sifdefaultroute (int unit, u_int32_t ouraddr, u_int32_t gateway)
|
|
+int sifdefaultroute (int unit, u_int32_t ouraddr, u_int32_t gateway, bool replace)
|
|
{
|
|
- struct rtentry rt;
|
|
-
|
|
- if (defaultroute_exists(&rt) && strcmp(rt.rt_dev, ifname) != 0) {
|
|
- u_int32_t old_gateway = SIN_ADDR(rt.rt_gateway);
|
|
+ struct rtentry rt, tmp_rt;
|
|
+ struct rtentry *del_rt = NULL;
|
|
|
|
- if (old_gateway != gateway)
|
|
- error("not replacing existing default route to %s [%I]",
|
|
- rt.rt_dev, old_gateway);
|
|
- return 0;
|
|
+
|
|
+ if (default_rt_repl_rest) {
|
|
+ /* We have already reclaced the original defaultroute, if we
|
|
+ * are called again, we will delete the current default route
|
|
+ * and set the new default route in this function.
|
|
+ * - this is normally only the case the doing demand: */
|
|
+ if (defaultroute_exists( &tmp_rt ))
|
|
+ del_rt = &tmp_rt;
|
|
+ } else if ( defaultroute_exists( &old_def_rt ) &&
|
|
+ strcmp( old_def_rt.rt_dev, ifname ) != 0) {
|
|
+ /* We did not yet replace an existing default route, let's
|
|
+ * check if we should save and replace a default route:
|
|
+ */
|
|
+ u_int32_t old_gateway = SIN_ADDR(old_def_rt.rt_gateway);
|
|
+
|
|
+ if (old_gateway != gateway) {
|
|
+ if (!replace) {
|
|
+ error("not replacing default route to %s [%I]",
|
|
+ old_def_rt.rt_dev, old_gateway);
|
|
+ return 0;
|
|
+ } else {
|
|
+ // we need to copy rt_dev because we need it permanent too:
|
|
+ char * tmp_dev = malloc(strlen(old_def_rt.rt_dev)+1);
|
|
+ strcpy(tmp_dev, old_def_rt.rt_dev);
|
|
+ old_def_rt.rt_dev = tmp_dev;
|
|
+
|
|
+ notice("replacing old default route to %s [%I]",
|
|
+ old_def_rt.rt_dev, old_gateway);
|
|
+ default_rt_repl_rest = 1;
|
|
+ del_rt = &old_def_rt;
|
|
+ }
|
|
+ }
|
|
}
|
|
|
|
memset (&rt, '\0', sizeof (rt));
|
|
@@ -1310,6 +1349,12 @@
|
|
error("default route ioctl(SIOCADDRT): %m(%d)", errno);
|
|
return 0;
|
|
}
|
|
+ if (default_rt_repl_rest && del_rt)
|
|
+ if (ioctl(sock_fd, SIOCDELRT, del_rt) < 0) {
|
|
+ if ( ! ok_error ( errno ))
|
|
+ error("del old default route ioctl(SIOCDELRT): %m(%d)", errno);
|
|
+ return 0;
|
|
+ }
|
|
|
|
default_route_gateway = gateway;
|
|
return 1;
|
|
@@ -1344,6 +1389,16 @@
|
|
error("default route ioctl(SIOCDELRT): %m (%d)", errno);
|
|
return 0;
|
|
}
|
|
+ }
|
|
+ if (default_rt_repl_rest) {
|
|
+ notice("restoring old default route to %s [%I]",
|
|
+ old_def_rt.rt_dev, SIN_ADDR(old_def_rt.rt_gateway));
|
|
+ if (ioctl(sock_fd, SIOCADDRT, &old_def_rt) < 0) {
|
|
+ if ( ! ok_error ( errno ))
|
|
+ error("restore default route ioctl(SIOCADDRT): %m(%d)", errno);
|
|
+ return 0;
|
|
+ }
|
|
+ default_rt_repl_rest = 0;
|
|
}
|
|
|
|
return 1;
|