+++ /dev/null
-/* Interface name and statistics get function using proc file system
- * Copyright (C) 1999 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 "if.h"
-#include "prefix.h"
-#include "log.h"
-
-#include "zebra/ioctl.h"
-#include "zebra/connected.h"
-#include "zebra/interface.h"
-
-/* Proc filesystem one line buffer. */
-#define PROCBUFSIZ 1024
-
-/* Path to device proc file system. */
-#ifndef _PATH_PROC_NET_DEV
-#define _PATH_PROC_NET_DEV "/proc/net/dev"
-#endif /* _PATH_PROC_NET_DEV */
-
-/* Return statistics data pointer. */
-static char *
-interface_name_cut (char *buf, char **name)
-{
- char *stat;
-
- /* Skip white space. Line will include header spaces. */
- while (*buf == ' ')
- buf++;
- *name = buf;
-
- /* Cut interface name. */
- stat = strrchr (buf, ':');
- *stat++ = '\0';
-
- return stat;
-}
-
-/* Fetch each statistics field. */
-static int
-ifstat_dev_fields (int version, char *buf, struct interface *ifp)
-{
- switch (version)
- {
- case 3:
- sscanf(buf,
- "%ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld",
- &ifp->stats.rx_bytes,
- &ifp->stats.rx_packets,
- &ifp->stats.rx_errors,
- &ifp->stats.rx_dropped,
- &ifp->stats.rx_fifo_errors,
- &ifp->stats.rx_frame_errors,
- &ifp->stats.rx_compressed,
- &ifp->stats.rx_multicast,
-
- &ifp->stats.tx_bytes,
- &ifp->stats.tx_packets,
- &ifp->stats.tx_errors,
- &ifp->stats.tx_dropped,
- &ifp->stats.tx_fifo_errors,
- &ifp->stats.collisions,
- &ifp->stats.tx_carrier_errors,
- &ifp->stats.tx_compressed);
- break;
- case 2:
- sscanf(buf, "%ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld",
- &ifp->stats.rx_bytes,
- &ifp->stats.rx_packets,
- &ifp->stats.rx_errors,
- &ifp->stats.rx_dropped,
- &ifp->stats.rx_fifo_errors,
- &ifp->stats.rx_frame_errors,
-
- &ifp->stats.tx_bytes,
- &ifp->stats.tx_packets,
- &ifp->stats.tx_errors,
- &ifp->stats.tx_dropped,
- &ifp->stats.tx_fifo_errors,
- &ifp->stats.collisions,
- &ifp->stats.tx_carrier_errors);
- ifp->stats.rx_multicast = 0;
- break;
- case 1:
- sscanf(buf, "%ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld",
- &ifp->stats.rx_packets,
- &ifp->stats.rx_errors,
- &ifp->stats.rx_dropped,
- &ifp->stats.rx_fifo_errors,
- &ifp->stats.rx_frame_errors,
-
- &ifp->stats.tx_packets,
- &ifp->stats.tx_errors,
- &ifp->stats.tx_dropped,
- &ifp->stats.tx_fifo_errors,
- &ifp->stats.collisions,
- &ifp->stats.tx_carrier_errors);
- ifp->stats.rx_bytes = 0;
- ifp->stats.tx_bytes = 0;
- ifp->stats.rx_multicast = 0;
- break;
- }
- return 0;
-}
-
-/* Update interface's statistics. */
-static void
-ifstat_update_proc (void)
-{
- FILE *fp;
- char buf[PROCBUFSIZ];
- int version;
- struct interface *ifp;
- char *stat;
- char *name;
-
- /* Open /proc/net/dev. */
- fp = fopen (_PATH_PROC_NET_DEV, "r");
- if (fp == NULL)
- {
- zlog_warn ("Can't open proc file %s: %s",
- _PATH_PROC_NET_DEV, safe_strerror (errno));
- return;
- }
-
- /* Drop header lines. */
- fgets (buf, PROCBUFSIZ, fp);
- fgets (buf, PROCBUFSIZ, fp);
-
- /* To detect proc format veresion, parse second line. */
- if (strstr (buf, "compressed"))
- version = 3;
- else if (strstr (buf, "bytes"))
- version = 2;
- else
- version = 1;
-
- /* Update each interface's statistics. */
- while (fgets (buf, PROCBUFSIZ, fp) != NULL)
- {
- stat = interface_name_cut (buf, &name);
- ifp = if_get_by_name (name);
- ifstat_dev_fields (version, stat, ifp);
- }
- fclose(fp);
- return;
-}
-
-/* Interface structure allocation by proc filesystem. */
-int
-interface_list_proc ()
-{
- FILE *fp;
- char buf[PROCBUFSIZ];
- struct interface *ifp;
- char *name;
-
- /* Open /proc/net/dev. */
- fp = fopen (_PATH_PROC_NET_DEV, "r");
- if (fp == NULL)
- {
- zlog_warn ("Can't open proc file %s: %s",
- _PATH_PROC_NET_DEV, safe_strerror (errno));
- return -1;
- }
-
- /* Drop header lines. */
- fgets (buf, PROCBUFSIZ, fp);
- fgets (buf, PROCBUFSIZ, fp);
-
- /* Only allocate interface structure. Other jobs will be done in
- if_ioctl.c. */
- while (fgets (buf, PROCBUFSIZ, fp) != NULL)
- {
- interface_name_cut (buf, &name);
- ifp = if_get_by_name (name);
- if_add_update (ifp);
- }
- fclose(fp);
- return 0;
-}
-
-#if defined(HAVE_IPV6) && defined(HAVE_PROC_NET_IF_INET6)
-
-#ifndef _PATH_PROC_NET_IF_INET6
-#define _PATH_PROC_NET_IF_INET6 "/proc/net/if_inet6"
-#endif /* _PATH_PROC_NET_IF_INET6 */
-
-int
-ifaddr_proc_ipv6 ()
-{
- FILE *fp;
- char buf[PROCBUFSIZ];
- int n;
- char addr[33];
- char ifname[21];
- int ifindex, plen, scope, status;
- struct interface *ifp;
- struct prefix_ipv6 p;
-
- /* Open proc file system. */
- fp = fopen (_PATH_PROC_NET_IF_INET6, "r");
- if (fp == NULL)
- {
- zlog_warn ("Can't open proc file %s: %s",
- _PATH_PROC_NET_IF_INET6, safe_strerror (errno));
- return -1;
- }
-
- /* Get interface's IPv6 address. */
- while (fgets (buf, PROCBUFSIZ, fp) != NULL)
- {
- n = sscanf (buf, "%32s %02x %02x %02x %02x %20s",
- addr, &ifindex, &plen, &scope, &status, ifname);
- if (n != 6)
- continue;
-
- ifp = if_get_by_name (ifname);
-
- /* Fetch interface's IPv6 address. */
- str2in6_addr (addr, &p.prefix);
- p.prefixlen = plen;
-
- connected_add_ipv6 (ifp, 0, &p.prefix, p.prefixlen, NULL, ifname);
- }
- fclose (fp);
- return 0;
-}
-#endif /* HAVE_IPV6 && HAVE_PROC_NET_IF_INET6 */
+++ /dev/null
-/*
- * 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 */
-}