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/*
* Copyright (c) 2001-2003
* Fraunhofer Institute for Open Communication Systems (FhG Fokus).
* All rights reserved.
*
* Author: Harti Brandt <harti@freebsd.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Begemot: bsnmp/snmp_mibII/snmp_mibII.h,v 1.17 2005/05/23 09:03:43 brandt_h Exp $
*
* Implementation of the interfaces and IP groups of MIB-II.
*/
#ifndef snmp_mibII_h_
#define snmp_mibII_h_
/* forward declaration */
struct mibif;
enum mibif_notify {
MIBIF_NOTIFY_DESTROY
};
typedef void (*mibif_notify_f)(struct mibif *, enum mibif_notify, void *);
/*
* Interfaces. This structure describes one interface as seen in the MIB.
* Interfaces are indexed by ifindex. This is not the same as the index
* used by the system because of the rules in RFC-2863 section 3.1.5. This
* RFC requires, that an ifindex is not to be re-used for ANOTHER dynamically
* interfaces once the interface was deleted. The system's ifindex is in
* sysindex. Mapping is via the mapping table below.
*/
struct mibif {
TAILQ_ENTRY(mibif) link;
u_int flags;
u_int index; /* the logical ifindex */
u_int sysindex;
char name[IFNAMSIZ];
char descr[256];
struct ifmibdata mib;
uint64_t mibtick;
void *specmib;
size_t specmiblen;
u_char *physaddr;
u_int physaddrlen;
int has_connector;
int trap_enable;
uint64_t counter_disc;
/*
* This is needed to handle interface type specific information
* in sub-modules. It contains a function pointer which handles
* notifications and a data pointer to arbitrary data.
* Should be set via the mibif_notify function.
*/
mibif_notify_f xnotify;
void *xnotify_data;
const struct lmodule *xnotify_mod;
/* to be set by ifType specific modules. This is ifSpecific. */
struct asn_oid spec_oid;
/* private data - don't touch */
void *private;
};
/*
* Interface IP-address table.
*/
struct mibifa {
TAILQ_ENTRY(mibifa) link;
struct in_addr inaddr;
struct in_addr inmask;
struct in_addr inbcast;
struct asn_oid index; /* index for table search */
u_int ifindex;
u_int flags;
};
/*
* Interface receive addresses. Interface link-level multicast, broadcast
* and hardware addresses are handled automatically.
*/
struct mibrcvaddr {
TAILQ_ENTRY(mibrcvaddr) link;
struct asn_oid index;
u_int ifindex;
u_char addr[ASN_MAXOIDLEN];
size_t addrlen;
u_int flags;
};
enum {
MIBRCVADDR_VOLATILE = 0x00000001,
MIBRCVADDR_BCAST = 0x00000002,
MIBRCVADDR_HW = 0x00000004,
};
/* network socket */
extern int mib_netsock;
/* set an interface name to dynamic mode */
void mib_if_set_dyn(const char *);
/* re-read the systems interface list */
void mib_refresh_iflist(void);
/* find interface by index */
struct mibif *mib_find_if(u_int);
struct mibif *mib_find_if_sys(u_int);
struct mibif *mib_find_if_name(const char *);
/* iterate through all interfaces */
struct mibif *mib_first_if(void);
struct mibif *mib_next_if(const struct mibif *);
/* register for interface creations */
int mib_register_newif(int (*)(struct mibif *), const struct lmodule *);
void mib_unregister_newif(const struct lmodule *);
/* get fresh MIB data */
int mib_fetch_ifmib(struct mibif *);
/* change the ADMIN status of an interface and refresh the MIB */
int mib_if_admin(struct mibif *, int up);
/* find interface address by address */
struct mibifa *mib_find_ifa(struct in_addr);
/* find first/next address for a given interface */
struct mibifa *mib_first_ififa(const struct mibif *);
struct mibifa *mib_next_ififa(struct mibifa *);
/* create/delete stacking entries */
int mib_ifstack_create(const struct mibif *lower, const struct mibif *upper);
void mib_ifstack_delete(const struct mibif *lower, const struct mibif *upper);
/* find receive address */
struct mibrcvaddr *mib_find_rcvaddr(u_int, const u_char *, size_t);
/* create/delete receive addresses */
struct mibrcvaddr *mib_rcvaddr_create(struct mibif *, const u_char *, size_t);
void mib_rcvaddr_delete(struct mibrcvaddr *);
/* register for interface notification */
void *mibif_notify(struct mibif *, const struct lmodule *, mibif_notify_f,
void *);
void mibif_unnotify(void *);
#endif
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