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This commit is contained in:
Glenn L McGrath 2002-08-22 18:24:43 +00:00
parent baf55a85fc
commit 7c58e9be69
1 changed files with 174 additions and 163 deletions
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47
networking/route.c
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@ -15,7 +15,7 @@
* Foundation; either version 2 of the License, or (at * Foundation; either version 2 of the License, or (at
* your option) any later version. * your option) any later version.
* *
* $Id: route.c,v 1.17 2002/07/03 11:46:34 andersen Exp $ * $Id: route.c,v 1.18 2002/08/22 18:24:43 bug1 Exp $
* *
* displayroute() code added by Vladimir N. Oleynik <dzo@simtreas.ru> * displayroute() code added by Vladimir N. Oleynik <dzo@simtreas.ru>
* adjustments by Larry Doolittle <LRDoolittle@lbl.gov> * adjustments by Larry Doolittle <LRDoolittle@lbl.gov>
@ -28,7 +28,7 @@
#include "inet_common.h" #include "inet_common.h"
#include <net/route.h> #include <net/route.h>
#include <net/if.h> #include <net/if.h>
#include <linux/param.h> // HZ #include <linux/param.h> /* HZ */
#include <stdio.h> #include <stdio.h>
#include <errno.h> #include <errno.h>
#include <fcntl.h> #include <fcntl.h>
@ -78,8 +78,7 @@
/* add or delete a route depending on action */ /* add or delete a route depending on action */
static int static int INET_setroute(int action, int options, char **args)
INET_setroute(int action, int options, char **args)
{ {
struct rtentry rt; struct rtentry rt;
char target[128], gateway[128] = "NONE"; char target[128], gateway[128] = "NONE";
@ -106,7 +105,9 @@ INET_setroute(int action, int options, char **args)
memset((char *) &rt, 0, sizeof(struct rtentry)); memset((char *) &rt, 0, sizeof(struct rtentry));
if ((isnet = INET_resolve(target, (struct sockaddr_in *)&rt.rt_dst, xflag!=1)) < 0) { if ((isnet =
INET_resolve(target, (struct sockaddr_in *) &rt.rt_dst,
xflag != 1)) < 0) {
error_msg(_("can't resolve %s"), target); error_msg(_("can't resolve %s"), target);
return EXIT_FAILURE; /* XXX change to E_something */ return EXIT_FAILURE; /* XXX change to E_something */
} }
@ -153,7 +154,9 @@ INET_setroute(int action, int options, char **args)
if (!*args || mask_in_addr(rt)) if (!*args || mask_in_addr(rt))
show_usage(); show_usage();
netmask = *args; netmask = *args;
if ((isnet = INET_resolve(netmask, (struct sockaddr_in *)&mask, 0)) < 0) { if ((isnet =
INET_resolve(netmask, (struct sockaddr_in *) &mask,
0)) < 0) {
error_msg(_("can't resolve netmask %s"), netmask); error_msg(_("can't resolve netmask %s"), netmask);
return E_LOOKUP; return E_LOOKUP;
} }
@ -169,14 +172,14 @@ INET_setroute(int action, int options, char **args)
if (rt.rt_flags & RTF_GATEWAY) if (rt.rt_flags & RTF_GATEWAY)
show_usage(); show_usage();
safe_strncpy(gateway, *args, (sizeof gateway)); safe_strncpy(gateway, *args, (sizeof gateway));
if ((isnet = INET_resolve(gateway, (struct sockaddr_in *)&rt.rt_gateway, 1)) < 0) { if ((isnet =
INET_resolve(gateway, (struct sockaddr_in *) &rt.rt_gateway,
1)) < 0) {
error_msg(_("can't resolve gw %s"), gateway); error_msg(_("can't resolve gw %s"), gateway);
return E_LOOKUP; return E_LOOKUP;
} }
if (isnet) { if (isnet) {
error_msg( error_msg(_("%s: cannot use a NETWORK as gateway!"), gateway);
_("%s: cannot use a NETWORK as gateway!"),
gateway);
return E_OPTERR; return E_OPTERR;
} }
rt.rt_flags |= RTF_GATEWAY; rt.rt_flags |= RTF_GATEWAY;
@ -282,10 +285,10 @@ INET_setroute(int action, int options, char **args)
/* sanity checks.. */ /* sanity checks.. */
if (mask_in_addr(rt)) { if (mask_in_addr(rt)) {
unsigned long mask = mask_in_addr(rt); unsigned long mask = mask_in_addr(rt);
mask = ~ntohl(mask); mask = ~ntohl(mask);
if ((rt.rt_flags & RTF_HOST) && mask != 0xffffffff) { if ((rt.rt_flags & RTF_HOST) && mask != 0xffffffff) {
error_msg( error_msg(_("netmask %.8x doesn't make sense with host route"),
_("netmask %.8x doesn't make sense with host route"),
(unsigned int) mask); (unsigned int) mask);
return E_OPTERR; return E_OPTERR;
} }
@ -506,12 +509,14 @@ void displayroutes(int noresolve, int netstatfmt)
ifl++; ifl++;
buff[ifl] = 0; /* interface */ buff[ifl] = 0; /* interface */
if (sscanf(buff + ifl + 1, "%lx%lx%X%d%d%d%lx%d%d%d", if (sscanf(buff + ifl + 1, "%lx%lx%X%d%d%d%lx%d%d%d",
&d, &g, &flgs, &ref, &use, &metric, &m, &mtu, &win, &ir )!=10) { &d, &g, &flgs, &ref, &use, &metric, &m, &mtu, &win,
&ir) != 10) {
error_msg_and_die("Unsuported kernel route format\n"); error_msg_and_die("Unsuported kernel route format\n");
} }
if (nl == 1) { if (nl == 1) {
printf("Kernel IP routing table\n"); printf("Kernel IP routing table\n");
printf("Destination Gateway Genmask Flags %s Iface\n", printf
("Destination Gateway Genmask Flags %s Iface\n",
netstatfmt ? " MSS Window irtt" : "Metric Ref Use"); netstatfmt ? " MSS Window irtt" : "Metric Ref Use");
} }
ifl = 0; /* parse flags */ ifl = 0; /* parse flags */
@ -543,7 +548,8 @@ void displayroutes(int noresolve, int netstatfmt)
s_addr.sin_addr = gw; s_addr.sin_addr = gw;
INET_rresolve(sgw, sizeof(sgw), &s_addr, numeric, m); INET_rresolve(sgw, sizeof(sgw), &s_addr, numeric, m);
printf("%-16s%-16s%-16s%-6s", sdest, sgw, inet_ntoa(mask), flags); printf("%-16s%-16s%-16s%-6s", sdest, sgw, inet_ntoa(mask),
flags);
if (netstatfmt) if (netstatfmt)
printf("%5d %-5d %6d %s\n", mtu, win, ir, buff); printf("%5d %-5d %6d %s\n", mtu, win, ir, buff);
else else
@ -567,6 +573,7 @@ static void INET6_displayroutes(int noresolve)
char addr6p[8][5], saddr6p[8][5], naddr6p[8][5]; char addr6p[8][5], saddr6p[8][5], naddr6p[8][5];
FILE *fp = xfopen("/proc/net/ipv6_route", "r"); FILE *fp = xfopen("/proc/net/ipv6_route", "r");
flags[0] = 'U'; flags[0] = 'U';
if (noresolve) if (noresolve)
@ -618,7 +625,8 @@ static void INET6_displayroutes(int noresolve)
inet_pton(AF_INET6, addr6, (struct sockaddr *) &saddr6.sin6_addr); inet_pton(AF_INET6, addr6, (struct sockaddr *) &saddr6.sin6_addr);
saddr6.sin6_family = AF_INET6; saddr6.sin6_family = AF_INET6;
INET6_rresolve(addr6, sizeof(addr6), (struct sockaddr_in6 *) &saddr6, numeric); INET6_rresolve(addr6, sizeof(addr6), (struct sockaddr_in6 *) &saddr6,
numeric);
snprintf(addr6, sizeof(addr6), "%s/%d", addr6, prefix_len); snprintf(addr6, sizeof(addr6), "%s/%d", addr6, prefix_len);
/* Fetch and resolve the nexthop address. */ /* Fetch and resolve the nexthop address. */
@ -628,7 +636,8 @@ static void INET6_displayroutes(int noresolve)
inet_pton(AF_INET6, naddr6, (struct sockaddr *) &snaddr6.sin6_addr); inet_pton(AF_INET6, naddr6, (struct sockaddr *) &snaddr6.sin6_addr);
snaddr6.sin6_family = AF_INET6; snaddr6.sin6_family = AF_INET6;
INET6_rresolve(naddr6, sizeof(naddr6), (struct sockaddr_in6 *) &snaddr6, numeric); INET6_rresolve(naddr6, sizeof(naddr6),
(struct sockaddr_in6 *) &snaddr6, numeric);
/* Print the info. */ /* Print the info. */
printf("%-43s %-39s %-5s %-6d %-2d %7d %-8s\n", printf("%-43s %-39s %-5s %-6d %-2d %7d %-8s\n",
@ -641,6 +650,7 @@ int route_main(int argc, char **argv)
{ {
int opt; int opt;
int what = 0; int what = 0;
#if CONFIG_FEATURE_IPV6 #if CONFIG_FEATURE_IPV6
int af = AF_INET; int af = AF_INET;
#endif #endif
@ -680,7 +690,8 @@ int route_main(int argc, char **argv)
/* check verb */ /* check verb */
if (strcmp(argv[1], "add") == 0) if (strcmp(argv[1], "add") == 0)
what = RTACTION_ADD; what = RTACTION_ADD;
else if (strcmp( argv [1], "del")==0 || strcmp( argv [1], "delete")==0) else if (strcmp(argv[1], "del") == 0
|| strcmp(argv[1], "delete") == 0)
what = RTACTION_DEL; what = RTACTION_DEL;
else if (strcmp(argv[1], "flush") == 0) else if (strcmp(argv[1], "flush") == 0)
what = RTACTION_FLUSH; what = RTACTION_FLUSH;