diff options
Diffstat (limited to 'usr.sbin/bsnmpd/modules/snmp_bridge/bridge_snmp.c')
| -rw-r--r-- | usr.sbin/bsnmpd/modules/snmp_bridge/bridge_snmp.c | 338 |
1 files changed, 0 insertions, 338 deletions
diff --git a/usr.sbin/bsnmpd/modules/snmp_bridge/bridge_snmp.c b/usr.sbin/bsnmpd/modules/snmp_bridge/bridge_snmp.c deleted file mode 100644 index 81acc4d..0000000 --- a/usr.sbin/bsnmpd/modules/snmp_bridge/bridge_snmp.c +++ /dev/null @@ -1,338 +0,0 @@ -/*- - * Copyright (c) 2006 Shteryana Shopova <syrinx@FreeBSD.org> - * All rights reserved. - * - * 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 THE 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 THE 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. - * - * Bridge MIB implementation for SNMPd. - * - * $FreeBSD$ - */ - -#include <sys/param.h> -#include <sys/queue.h> -#include <sys/socket.h> -#include <sys/types.h> - -#include <net/ethernet.h> -#include <net/if.h> -#include <net/if_mib.h> -#include <net/if_types.h> - -#include <errno.h> -#include <stdarg.h> -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <syslog.h> - -#include <bsnmp/snmpmod.h> -#include <bsnmp/snmp_mibII.h> - -#include "bridge_tree.h" -#include "bridge_snmp.h" -#include "bridge_oid.h" - -static struct lmodule *bridge_module; - -/* For the registration. */ -static const struct asn_oid oid_dot1Bridge = OIDX_dot1dBridge; -/* The registration. */ -static uint reg_bridge; - -/* Periodic timer for polling all bridges' data. */ -static void *bridge_data_timer; -static void *bridge_tc_timer; - -static int bridge_data_maxage = SNMP_BRIDGE_DATA_MAXAGE; -static int bridge_poll_ticks = SNMP_BRIDGE_POLL_INTERVAL * 100; -static int bridge_tc_poll_ticks = SNMP_BRIDGE_TC_POLL_INTERVAL * 100; - -/* - * Our default bridge, whose info will be visible under - * the dot1dBridge subtree and functions to set/fetch it. - */ -static char bif_default_name[IFNAMSIZ] = "bridge0"; -static struct bridge_if *bif_default; - -struct bridge_if * -bridge_get_default(void) -{ - struct mibif *ifp; - - if (bif_default != NULL) { - - /* Walk through the mibII interface list. */ - for (ifp = mib_first_if(); ifp != NULL; ifp = mib_next_if(ifp)) - if (strcmp(ifp->name, bif_default->bif_name) == 0) - break; - - if (ifp == NULL) - bif_default = NULL; - } - - return (bif_default); -} - -void -bridge_set_default(struct bridge_if *bif) -{ - bif_default = bif; - - syslog(LOG_ERR, "Set default bridge interface to: %s", - bif == NULL ? "(none)" : bif->bif_name); -} - -const char * -bridge_get_default_name(void) -{ - return (bif_default_name); -} - -static int -bridge_set_default_name(const char *bif_name, uint len) -{ - struct bridge_if *bif; - - if (len >= IFNAMSIZ) - return (-1); - - bcopy(bif_name, bif_default_name, len); - bif_default_name[len] = '\0'; - - if ((bif = bridge_if_find_ifname(bif_default_name)) == NULL) { - bif_default = NULL; - return (0); - } - - bif_default = bif; - return (1); -} - -int -bridge_get_data_maxage(void) -{ - return (bridge_data_maxage); -} - -static void -bridge_set_poll_ticks(int poll_ticks) -{ - if (bridge_data_timer != NULL) - timer_stop(bridge_data_timer); - - bridge_poll_ticks = poll_ticks; - bridge_data_timer = timer_start_repeat(bridge_poll_ticks, - bridge_poll_ticks, bridge_update_all, NULL, bridge_module); -} -/* - * The bridge module configuration via SNMP. - */ -static int -bridge_default_name_save(struct snmp_context *ctx, const char *bridge_default) -{ - if ((ctx->scratch->int1 = strlen(bridge_default)) >= IFNAMSIZ) - return (-1); - - if ((ctx->scratch->ptr1 = malloc(IFNAMSIZ)) == NULL) - return (-1); - - strncpy(ctx->scratch->ptr1, bridge_default, ctx->scratch->int1); - return (0); -} - -int -op_begemot_bridge_config(struct snmp_context *ctx, struct snmp_value *val, - uint sub, uint iidx __unused, enum snmp_op op) -{ - switch (op) { - case SNMP_OP_GET: - switch (val->var.subs[sub - 1]) { - case LEAF_begemotBridgeDefaultBridgeIf: - return (string_get(val, bridge_get_default_name(), -1)); - - case LEAF_begemotBridgeDataUpdate: - val->v.integer = bridge_data_maxage; - return (SNMP_ERR_NOERROR); - - case LEAF_begemotBridgeDataPoll: - val->v.integer = bridge_poll_ticks / 100; - return (SNMP_ERR_NOERROR); - } - abort(); - - case SNMP_OP_GETNEXT: - abort(); - - case SNMP_OP_SET: - switch (val->var.subs[sub - 1]) { - case LEAF_begemotBridgeDefaultBridgeIf: - /* - * Cannot use string_save() here - requires either - * a fixed-sized or var-length string - not less - * than or equal. - */ - if (bridge_default_name_save(ctx, - bridge_get_default_name()) < 0) - return (SNMP_ERR_RES_UNAVAIL); - - if (bridge_set_default_name(val->v.octetstring.octets, - val->v.octetstring.len) < 0) - return (SNMP_ERR_BADVALUE); - return (SNMP_ERR_NOERROR); - - case LEAF_begemotBridgeDataUpdate: - if (val->v.integer < SNMP_BRIDGE_DATA_MAXAGE_MIN || - val->v.integer > SNMP_BRIDGE_DATA_MAXAGE_MAX) - return (SNMP_ERR_WRONG_VALUE); - ctx->scratch->int1 = bridge_data_maxage; - bridge_data_maxage = val->v.integer; - return (SNMP_ERR_NOERROR); - - case LEAF_begemotBridgeDataPoll: - if (val->v.integer < SNMP_BRIDGE_POLL_INTERVAL_MIN || - val->v.integer > SNMP_BRIDGE_POLL_INTERVAL_MAX) - return (SNMP_ERR_WRONG_VALUE); - ctx->scratch->int1 = val->v.integer; - return (SNMP_ERR_NOERROR); - } - abort(); - - case SNMP_OP_ROLLBACK: - switch (val->var.subs[sub - 1]) { - case LEAF_begemotBridgeDefaultBridgeIf: - bridge_set_default_name(ctx->scratch->ptr1, - ctx->scratch->int1); - free(ctx->scratch->ptr1); - break; - case LEAF_begemotBridgeDataUpdate: - bridge_data_maxage = ctx->scratch->int1; - break; - } - return (SNMP_ERR_NOERROR); - - case SNMP_OP_COMMIT: - switch (val->var.subs[sub - 1]) { - case LEAF_begemotBridgeDefaultBridgeIf: - free(ctx->scratch->ptr1); - break; - case LEAF_begemotBridgeDataPoll: - bridge_set_poll_ticks(ctx->scratch->int1 * 100); - break; - } - return (SNMP_ERR_NOERROR); - } - - abort(); -} - -/* - * Bridge mib module initialization hook. - * Returns 0 on success, < 0 on error. - */ -static int -bridge_init(struct lmodule * mod, int argc __unused, char *argv[] __unused) -{ - bridge_module = mod; - - if (bridge_kmod_load() < 0) - return (-1); - - if (bridge_ioctl_init() < 0) - return (-1); - - /* Register to get creation messages for bridge interfaces. */ - if (mib_register_newif(bridge_attach_newif, bridge_module)) { - syslog(LOG_ERR, "Cannot register newif function: %s", - strerror(errno)); - return (-1); - } - - return (0); -} - -/* - * Bridge mib module finalization hook. - */ -static int -bridge_fini(void) -{ - mib_unregister_newif(bridge_module); - or_unregister(reg_bridge); - - if (bridge_data_timer != NULL) { - timer_stop(bridge_data_timer); - bridge_data_timer = NULL; - } - - if (bridge_tc_timer != NULL) { - timer_stop(bridge_tc_timer); - bridge_tc_timer = NULL; - } - - bridge_ifs_fini(); - bridge_ports_fini(); - bridge_addrs_fini(); - - return (0); -} - -/* - * Bridge mib module start operation. - */ -static void -bridge_start(void) -{ - reg_bridge = or_register(&oid_dot1Bridge, - "The IETF MIB for Bridges (RFC 4188).", bridge_module); - - bridge_data_timer = timer_start_repeat(bridge_poll_ticks, - bridge_poll_ticks, bridge_update_all, NULL, bridge_module); - - bridge_tc_timer = timer_start_repeat(bridge_tc_poll_ticks, - bridge_tc_poll_ticks, bridge_update_tc_time, NULL, bridge_module); -} - -static void -bridge_dump(void) -{ - struct bridge_if *bif; - - if ((bif = bridge_get_default()) == NULL) - syslog(LOG_ERR, "Dump: no default bridge interface"); - else - syslog(LOG_ERR, "Dump: default bridge interface %s", - bif->bif_name); - - bridge_ifs_dump(); - bridge_pf_dump(); -} - -const struct snmp_module config = { - .comment = "This module implements the bridge mib (RFC 4188).", - .init = bridge_init, - .fini = bridge_fini, - .start = bridge_start, - .tree = bridge_ctree, - .dump = bridge_dump, - .tree_size = bridge_CTREE_SIZE, -}; 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