diff options
Diffstat (limited to 'zebra/rtread_proc.c')
| -rw-r--r-- | zebra/rtread_proc.c | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/zebra/rtread_proc.c b/zebra/rtread_proc.c deleted file mode 100644 index b365d958f9..0000000000 --- a/zebra/rtread_proc.c +++ /dev/null @@ -1,175 +0,0 @@ -/* - * Kernel routing readup by /proc filesystem - * Copyright (C) 1997 Kunihiro Ishiguro - * - * This file is part of GNU Zebra. - * - * GNU Zebra is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2, or (at your option) any - * later version. - * - * GNU Zebra is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Zebra; see the file COPYING. If not, write to the Free - * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA - * 02111-1307, USA. - */ - -#include <zebra.h> - -#include "prefix.h" -#include "log.h" -#include "if.h" -#include "rib.h" - -#include "zebra/zserv.h" -#include "zebra/rt.h" - -/* Proc file system to read IPv4 routing table. */ -#ifndef _PATH_PROCNET_ROUTE -#define _PATH_PROCNET_ROUTE "/proc/net/route" -#endif /* _PATH_PROCNET_ROUTE */ - -/* Proc file system to read IPv6 routing table. */ -#ifndef _PATH_PROCNET_ROUTE6 -#define _PATH_PROCNET_ROUTE6 "/proc/net/ipv6_route" -#endif /* _PATH_PROCNET_ROUTE6 */ - -/* To read interface's name */ -#define INTERFACE_NAMSIZ 20 - -/* Reading buffer for one routing entry. */ -#define RT_BUFSIZ 1024 - -/* Kernel routing table read up by /proc filesystem. */ -static int -proc_route_read (void) -{ - FILE *fp; - char buf[RT_BUFSIZ]; - char iface[INTERFACE_NAMSIZ], dest[9], gate[9], mask[9]; - int flags, refcnt, use, metric, mtu, window, rtt; - - /* Open /proc filesystem */ - fp = fopen (_PATH_PROCNET_ROUTE, "r"); - if (fp == NULL) - { - zlog_warn ("Can't open %s : %s\n", _PATH_PROCNET_ROUTE, safe_strerror (errno)); - return -1; - } - - /* Drop first label line. */ - fgets (buf, RT_BUFSIZ, fp); - - while (fgets (buf, RT_BUFSIZ, fp) != NULL) - { - int n; - struct prefix_ipv4 p; - struct in_addr tmpmask; - struct in_addr gateway; - u_char zebra_flags = 0; - - n = sscanf (buf, "%s %s %s %x %d %d %d %s %d %d %d", - iface, dest, gate, &flags, &refcnt, &use, &metric, - mask, &mtu, &window, &rtt); - if (n != 11) - { - zlog_warn ("can't read all of routing information\n"); - continue; - } - if (! (flags & RTF_UP)) - continue; - if (! (flags & RTF_GATEWAY)) - continue; - - if (flags & RTF_DYNAMIC) - zebra_flags |= ZEBRA_FLAG_SELFROUTE; - - p.family = AF_INET; - sscanf (dest, "%lX", (unsigned long *)&p.prefix); - sscanf (mask, "%lX", (unsigned long *)&tmpmask); - p.prefixlen = ip_masklen (tmpmask); - sscanf (gate, "%lX", (unsigned long *)&gateway); - - rib_add_ipv4 (ZEBRA_ROUTE_KERNEL, 0, zebra_flags, &p, &gateway, NULL, 0, 0, 0, 0, SAFI_UNICAST); - } - - fclose (fp); - return 0; -} - -#ifdef HAVE_IPV6 -static int -proc_ipv6_route_read () -{ - FILE *fp; - char buf [RT_BUFSIZ]; - - /* Open /proc filesystem */ - fp = fopen (_PATH_PROCNET_ROUTE6, "r"); - if (fp == NULL) - { - zlog_warn ("Can't open %s : %s", _PATH_PROCNET_ROUTE6, - safe_strerror (errno)); - return -1; - } - - /* There is no title line, so we don't drop first line. */ - while (fgets (buf, RT_BUFSIZ, fp) != NULL) - { - int n; - char dest[33], src[33], gate[33]; - char iface[INTERFACE_NAMSIZ]; - int dest_plen, src_plen; - int metric, use, refcnt, flags; - struct prefix_ipv6 p; - struct in6_addr gateway; - u_char zebra_flags = 0; - - /* Linux 2.1.x write this information at net/ipv6/route.c - rt6_info_node () */ - n = sscanf (buf, "%32s %02x %32s %02x %32s %08x %08x %08x %08x %s", - dest, &dest_plen, src, &src_plen, gate, - &metric, &use, &refcnt, &flags, iface); - - if (n != 10) - { - /* zlog_warn ("can't read all of routing information %d\n%s\n", n, buf); */ - continue; - } - - if (! (flags & RTF_UP)) - continue; - if (! (flags & RTF_GATEWAY)) - continue; - - if (flags & RTF_DYNAMIC) - zebra_flags |= ZEBRA_FLAG_SELFROUTE; - - p.family = AF_INET6; - str2in6_addr (dest, &p.prefix); - str2in6_addr (gate, &gateway); - p.prefixlen = dest_plen; - - rib_add_ipv6 (ZEBRA_ROUTE_KERNEL, zebra_flags, &p, &gateway, 0, 0, - metric, 0); - } - - fclose (fp); - return 0; -} -#endif /* HAVE_IPV6 */ - -void -route_read (void) -{ - proc_route_read (); -#ifdef HAVE_IPV6 - proc_ipv6_route_read (); -#endif /* HAVE_IPV6 */ -} |