Initial revision
diff --git a/lib/if.h b/lib/if.h
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+/* Interface related header.
+ Copyright (C) 1997, 98, 99 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. */
+
+#ifndef _ZEBRA_IF_H
+#define _ZEBRA_IF_H
+
+#include "linklist.h"
+
+/*
+ Interface name length.
+
+ Linux define value in /usr/include/linux/if.h.
+ #define IFNAMSIZ 16
+
+ FreeBSD define value in /usr/include/net/if.h.
+ #define IFNAMSIZ 16
+*/
+
+#define INTERFACE_NAMSIZ 20
+#define INTERFACE_HWADDR_MAX 20
+
+/* Internal If indexes start at 0xFFFFFFFF and go down to 1 greater
+ than this */
+#define IFINDEX_INTERNBASE 0x80000000
+
+#ifdef HAVE_PROC_NET_DEV
+struct if_stats
+{
+ unsigned long rx_packets; /* total packets received */
+ unsigned long tx_packets; /* total packets transmitted */
+ unsigned long rx_bytes; /* total bytes received */
+ unsigned long tx_bytes; /* total bytes transmitted */
+ unsigned long rx_errors; /* bad packets received */
+ unsigned long tx_errors; /* packet transmit problems */
+ unsigned long rx_dropped; /* no space in linux buffers */
+ unsigned long tx_dropped; /* no space available in linux */
+ unsigned long rx_multicast; /* multicast packets received */
+ unsigned long rx_compressed;
+ unsigned long tx_compressed;
+ unsigned long collisions;
+
+ /* detailed rx_errors: */
+ unsigned long rx_length_errors;
+ unsigned long rx_over_errors; /* receiver ring buff overflow */
+ unsigned long rx_crc_errors; /* recved pkt with crc error */
+ unsigned long rx_frame_errors; /* recv'd frame alignment error */
+ unsigned long rx_fifo_errors; /* recv'r fifo overrun */
+ unsigned long rx_missed_errors; /* receiver missed packet */
+ /* detailed tx_errors */
+ unsigned long tx_aborted_errors;
+ unsigned long tx_carrier_errors;
+ unsigned long tx_fifo_errors;
+ unsigned long tx_heartbeat_errors;
+ unsigned long tx_window_errors;
+};
+#endif /* HAVE_PROC_NET_DEV */
+
+/* Interface structure */
+struct interface
+{
+ /* Interface name. */
+ char name[INTERFACE_NAMSIZ + 1];
+
+ /* Interface index. */
+ unsigned int ifindex;
+
+ /* Zebra internal interface status */
+ u_char status;
+#define ZEBRA_INTERFACE_ACTIVE (1 << 0)
+#define ZEBRA_INTERFACE_SUB (1 << 1)
+
+ /* Interface flags. */
+ unsigned long flags;
+
+ /* Interface metric */
+ int metric;
+
+ /* Interface MTU. */
+ int mtu;
+
+ /* Hardware address. */
+#ifdef HAVE_SOCKADDR_DL
+ struct sockaddr_dl sdl;
+#else
+ unsigned short hw_type;
+ u_char hw_addr[INTERFACE_HWADDR_MAX];
+ int hw_addr_len;
+#endif /* HAVE_SOCKADDR_DL */
+
+ /* interface bandwidth, kbits */
+ unsigned int bandwidth;
+
+ /* description of the interface. */
+ char *desc;
+
+ /* Distribute list. */
+ void *distribute_in;
+ void *distribute_out;
+
+ /* Connected address list. */
+ list connected;
+
+ /* Daemon specific interface data pointer. */
+ void *info;
+
+ /* Statistics fileds. */
+#ifdef HAVE_PROC_NET_DEV
+ struct if_stats stats;
+#endif /* HAVE_PROC_NET_DEV */
+#ifdef HAVE_NET_RT_IFLIST
+ struct if_data stats;
+#endif /* HAVE_NET_RT_IFLIST */
+};
+
+/* Connected address structure. */
+struct connected
+{
+ /* Attached interface. */
+ struct interface *ifp;
+
+ /* Flags for configuration. */
+ u_char conf;
+#define ZEBRA_IFC_REAL (1 << 0)
+#define ZEBRA_IFC_CONFIGURED (1 << 1)
+
+ /* Flags for connected address. */
+ u_char flags;
+#define ZEBRA_IFA_SECONDARY (1 << 0)
+
+ /* Address of connected network. */
+ struct prefix *address;
+ struct prefix *destination;
+
+ /* Label for Linux 2.2.X and upper. */
+ char *label;
+};
+
+/* Interface hook sort. */
+#define IF_NEW_HOOK 0
+#define IF_DELETE_HOOK 1
+
+/* There are some interface flags which are only supported by some
+ operating system. */
+
+#ifndef IFF_NOTRAILERS
+#define IFF_NOTRAILERS 0x0
+#endif /* IFF_NOTRAILERS */
+#ifndef IFF_OACTIVE
+#define IFF_OACTIVE 0x0
+#endif /* IFF_OACTIVE */
+#ifndef IFF_SIMPLEX
+#define IFF_SIMPLEX 0x0
+#endif /* IFF_SIMPLEX */
+#ifndef IFF_LINK0
+#define IFF_LINK0 0x0
+#endif /* IFF_LINK0 */
+#ifndef IFF_LINK1
+#define IFF_LINK1 0x0
+#endif /* IFF_LINK1 */
+#ifndef IFF_LINK2
+#define IFF_LINK2 0x0
+#endif /* IFF_LINK2 */
+
+/* Prototypes. */
+struct interface *if_new (void);
+struct interface *if_create (void);
+struct interface *if_lookup_by_index (unsigned int);
+struct interface *if_lookup_by_name (char *);
+struct interface *if_lookup_exact_address (struct in_addr);
+struct interface *if_lookup_address (struct in_addr);
+struct interface *if_get_by_name (char *);
+void if_delete (struct interface *);
+int if_is_up (struct interface *);
+int if_is_loopback (struct interface *);
+int if_is_broadcast (struct interface *);
+int if_is_pointopoint (struct interface *);
+int if_is_multicast (struct interface *);
+void if_add_hook (int, int (*)(struct interface *));
+void if_init ();
+void if_dump_all ();
+char *ifindex2ifname (unsigned int);
+
+/* Connected address functions. */
+struct connected *connected_new ();
+void connected_free (struct connected *);
+void connected_add (struct interface *, struct connected *);
+struct connected *connected_delete_by_prefix (struct interface *, struct prefix *);
+int ifc_pointopoint (struct connected *);
+
+#ifndef HAVE_IF_NAMETOINDEX
+unsigned int if_nametoindex (const char *);
+#endif
+#ifndef HAVE_IF_INDEXTONAME
+char *if_indextoname (unsigned int, char *);
+#endif
+
+/* Exported variables. */
+extern list iflist;
+extern struct cmd_element interface_desc_cmd;
+extern struct cmd_element no_interface_desc_cmd;
+extern struct cmd_element interface_cmd;
+extern struct cmd_element interface_pseudo_cmd;
+extern struct cmd_element no_interface_pseudo_cmd;
+
+#endif /* _ZEBRA_IF_H */