From 718e3744195351130f4ce7dbe0613f4b3e23df93 Mon Sep 17 00:00:00 2001 From: paul Date: Fri, 13 Dec 2002 20:15:29 +0000 Subject: Initial revision --- lib/if.h | 222 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 222 insertions(+) create mode 100644 lib/if.h (limited to 'lib/if.h') diff --git a/lib/if.h b/lib/if.h new file mode 100644 index 00000000..3896d187 --- /dev/null +++ b/lib/if.h @@ -0,0 +1,222 @@ +/* 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 */ -- cgit v1.2.1