| /** |
| * @file |
| * Management Information Base II (RFC1213) IP objects and functions. |
| */ |
| |
| /* |
| * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. |
| * 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. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. |
| * |
| * Author: Dirk Ziegelmeier <dziegel@gmx.de> |
| * Christiaan Simons <christiaan.simons@axon.tv> |
| */ |
| |
| #include "lwip/snmp.h" |
| #include "lwip/apps/snmp.h" |
| #include "lwip/apps/snmp_core.h" |
| #include "lwip/apps/snmp_mib2.h" |
| #include "lwip/apps/snmp_table.h" |
| #include "lwip/apps/snmp_scalar.h" |
| #include "lwip/stats.h" |
| #include "lwip/netif.h" |
| #include "lwip/ip.h" |
| #include "lwip/etharp.h" |
| |
| #if LWIP_SNMP && SNMP_LWIP_MIB2 |
| |
| #if SNMP_USE_NETCONN |
| #define SYNC_NODE_NAME(node_name) node_name ## _synced |
| #define CREATE_LWIP_SYNC_NODE(oid, node_name) \ |
| static const struct snmp_threadsync_node node_name ## _synced = SNMP_CREATE_THREAD_SYNC_NODE(oid, &node_name.node, &snmp_mib2_lwip_locks); |
| #else |
| #define SYNC_NODE_NAME(node_name) node_name |
| #define CREATE_LWIP_SYNC_NODE(oid, node_name) |
| #endif |
| |
| #if LWIP_IPV4 |
| /* --- ip .1.3.6.1.2.1.4 ----------------------------------------------------- */ |
| |
| static s16_t |
| ip_get_value(struct snmp_node_instance* instance, void* value) |
| { |
| s32_t* sint_ptr = (s32_t*)value; |
| u32_t* uint_ptr = (u32_t*)value; |
| |
| switch (instance->node->oid) { |
| case 1: /* ipForwarding */ |
| #if IP_FORWARD |
| /* forwarding */ |
| *sint_ptr = 1; |
| #else |
| /* not-forwarding */ |
| *sint_ptr = 2; |
| #endif |
| return sizeof(*sint_ptr); |
| case 2: /* ipDefaultTTL */ |
| *sint_ptr = IP_DEFAULT_TTL; |
| return sizeof(*sint_ptr); |
| case 3: /* ipInReceives */ |
| *uint_ptr = STATS_GET(mib2.ipinreceives); |
| return sizeof(*uint_ptr); |
| case 4: /* ipInHdrErrors */ |
| *uint_ptr = STATS_GET(mib2.ipinhdrerrors); |
| return sizeof(*uint_ptr); |
| case 5: /* ipInAddrErrors */ |
| *uint_ptr = STATS_GET(mib2.ipinaddrerrors); |
| return sizeof(*uint_ptr); |
| case 6: /* ipForwDatagrams */ |
| *uint_ptr = STATS_GET(mib2.ipforwdatagrams); |
| return sizeof(*uint_ptr); |
| case 7: /* ipInUnknownProtos */ |
| *uint_ptr = STATS_GET(mib2.ipinunknownprotos); |
| return sizeof(*uint_ptr); |
| case 8: /* ipInDiscards */ |
| *uint_ptr = STATS_GET(mib2.ipindiscards); |
| return sizeof(*uint_ptr); |
| case 9: /* ipInDelivers */ |
| *uint_ptr = STATS_GET(mib2.ipindelivers); |
| return sizeof(*uint_ptr); |
| case 10: /* ipOutRequests */ |
| *uint_ptr = STATS_GET(mib2.ipoutrequests); |
| return sizeof(*uint_ptr); |
| case 11: /* ipOutDiscards */ |
| *uint_ptr = STATS_GET(mib2.ipoutdiscards); |
| return sizeof(*uint_ptr); |
| case 12: /* ipOutNoRoutes */ |
| *uint_ptr = STATS_GET(mib2.ipoutnoroutes); |
| return sizeof(*uint_ptr); |
| case 13: /* ipReasmTimeout */ |
| #if IP_REASSEMBLY |
| *sint_ptr = IP_REASS_MAXAGE; |
| #else |
| *sint_ptr = 0; |
| #endif |
| return sizeof(*sint_ptr); |
| case 14: /* ipReasmReqds */ |
| *uint_ptr = STATS_GET(mib2.ipreasmreqds); |
| return sizeof(*uint_ptr); |
| case 15: /* ipReasmOKs */ |
| *uint_ptr = STATS_GET(mib2.ipreasmoks); |
| return sizeof(*uint_ptr); |
| case 16: /* ipReasmFails */ |
| *uint_ptr = STATS_GET(mib2.ipreasmfails); |
| return sizeof(*uint_ptr); |
| case 17: /* ipFragOKs */ |
| *uint_ptr = STATS_GET(mib2.ipfragoks); |
| return sizeof(*uint_ptr); |
| case 18: /* ipFragFails */ |
| *uint_ptr = STATS_GET(mib2.ipfragfails); |
| return sizeof(*uint_ptr); |
| case 19: /* ipFragCreates */ |
| *uint_ptr = STATS_GET(mib2.ipfragcreates); |
| return sizeof(*uint_ptr); |
| case 23: /* ipRoutingDiscards: not supported -> always 0 */ |
| *uint_ptr = 0; |
| return sizeof(*uint_ptr); |
| default: |
| LWIP_DEBUGF(SNMP_MIB_DEBUG,("ip_get_value(): unknown id: %"S32_F"\n", instance->node->oid)); |
| break; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * Test ip object value before setting. |
| * |
| * @param instance node instance |
| * @param len return value space (in bytes) |
| * @param value points to (varbind) space to copy value from. |
| * |
| * @note we allow set if the value matches the hardwired value, |
| * otherwise return badvalue. |
| */ |
| static snmp_err_t |
| ip_set_test(struct snmp_node_instance* instance, u16_t len, void *value) |
| { |
| snmp_err_t ret = SNMP_ERR_WRONGVALUE; |
| s32_t *sint_ptr = (s32_t*)value; |
| |
| LWIP_UNUSED_ARG(len); |
| switch (instance->node->oid) { |
| case 1: /* ipForwarding */ |
| #if IP_FORWARD |
| /* forwarding */ |
| if (*sint_ptr == 1) |
| #else |
| /* not-forwarding */ |
| if (*sint_ptr == 2) |
| #endif |
| { |
| ret = SNMP_ERR_NOERROR; |
| } |
| break; |
| case 2: /* ipDefaultTTL */ |
| if (*sint_ptr == IP_DEFAULT_TTL) { |
| ret = SNMP_ERR_NOERROR; |
| } |
| break; |
| default: |
| LWIP_DEBUGF(SNMP_MIB_DEBUG,("ip_set_test(): unknown id: %"S32_F"\n", instance->node->oid)); |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static snmp_err_t |
| ip_set_value(struct snmp_node_instance* instance, u16_t len, void *value) |
| { |
| LWIP_UNUSED_ARG(instance); |
| LWIP_UNUSED_ARG(len); |
| LWIP_UNUSED_ARG(value); |
| /* nothing to do here because in set_test we only accept values being the same as our own stored value -> no need to store anything */ |
| return SNMP_ERR_NOERROR; |
| } |
| |
| /* --- ipAddrTable --- */ |
| |
| /* list of allowed value ranges for incoming OID */ |
| static const struct snmp_oid_range ip_AddrTable_oid_ranges[] = { |
| { 0, 0xff }, /* IP A */ |
| { 0, 0xff }, /* IP B */ |
| { 0, 0xff }, /* IP C */ |
| { 0, 0xff } /* IP D */ |
| }; |
| |
| static snmp_err_t |
| ip_AddrTable_get_cell_value_core(struct netif *netif, const u32_t* column, union snmp_variant_value* value, u32_t* value_len) |
| { |
| LWIP_UNUSED_ARG(value_len); |
| |
| switch (*column) { |
| case 1: /* ipAdEntAddr */ |
| value->u32 = netif_ip4_addr(netif)->addr; |
| break; |
| case 2: /* ipAdEntIfIndex */ |
| value->u32 = netif_to_num(netif); |
| break; |
| case 3: /* ipAdEntNetMask */ |
| value->u32 = netif_ip4_netmask(netif)->addr; |
| break; |
| case 4: /* ipAdEntBcastAddr */ |
| /* lwIP oddity, there's no broadcast |
| address in the netif we can rely on */ |
| value->u32 = IPADDR_BROADCAST & 1; |
| break; |
| case 5: /* ipAdEntReasmMaxSize */ |
| #if IP_REASSEMBLY |
| /* @todo The theoretical maximum is IP_REASS_MAX_PBUFS * size of the pbufs, |
| * but only if receiving one fragmented packet at a time. |
| * The current solution is to calculate for 2 simultaneous packets... |
| */ |
| value->u32 = (IP_HLEN + ((IP_REASS_MAX_PBUFS/2) * |
| (PBUF_POOL_BUFSIZE - PBUF_LINK_ENCAPSULATION_HLEN - PBUF_LINK_HLEN - IP_HLEN))); |
| #else |
| /** @todo returning MTU would be a bad thing and |
| returning a wild guess like '576' isn't good either */ |
| value->u32 = 0; |
| #endif |
| break; |
| default: |
| return SNMP_ERR_NOSUCHINSTANCE; |
| } |
| |
| return SNMP_ERR_NOERROR; |
| } |
| |
| static snmp_err_t |
| ip_AddrTable_get_cell_value(const u32_t* column, const u32_t* row_oid, u8_t row_oid_len, union snmp_variant_value* value, u32_t* value_len) |
| { |
| ip4_addr_t ip; |
| struct netif *netif; |
| |
| /* check if incoming OID length and if values are in plausible range */ |
| if (!snmp_oid_in_range(row_oid, row_oid_len, ip_AddrTable_oid_ranges, LWIP_ARRAYSIZE(ip_AddrTable_oid_ranges))) { |
| return SNMP_ERR_NOSUCHINSTANCE; |
| } |
| |
| /* get IP from incoming OID */ |
| snmp_oid_to_ip4(&row_oid[0], &ip); /* we know it succeeds because of oid_in_range check above */ |
| |
| /* find netif with requested ip */ |
| netif = netif_list; |
| while (netif != NULL) { |
| if (ip4_addr_cmp(&ip, netif_ip4_addr(netif))) { |
| /* fill in object properties */ |
| return ip_AddrTable_get_cell_value_core(netif, column, value, value_len); |
| } |
| |
| netif = netif->next; |
| } |
| |
| /* not found */ |
| return SNMP_ERR_NOSUCHINSTANCE; |
| } |
| |
| static snmp_err_t |
| ip_AddrTable_get_next_cell_instance_and_value(const u32_t* column, struct snmp_obj_id* row_oid, union snmp_variant_value* value, u32_t* value_len) |
| { |
| struct netif *netif; |
| struct snmp_next_oid_state state; |
| u32_t result_temp[LWIP_ARRAYSIZE(ip_AddrTable_oid_ranges)]; |
| |
| /* init struct to search next oid */ |
| snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(ip_AddrTable_oid_ranges)); |
| |
| /* iterate over all possible OIDs to find the next one */ |
| netif = netif_list; |
| while (netif != NULL) { |
| u32_t test_oid[LWIP_ARRAYSIZE(ip_AddrTable_oid_ranges)]; |
| snmp_ip4_to_oid(netif_ip4_addr(netif), &test_oid[0]); |
| |
| /* check generated OID: is it a candidate for the next one? */ |
| snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(ip_AddrTable_oid_ranges), netif); |
| |
| netif = netif->next; |
| } |
| |
| /* did we find a next one? */ |
| if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) { |
| snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len); |
| /* fill in object properties */ |
| return ip_AddrTable_get_cell_value_core((struct netif*)state.reference, column, value, value_len); |
| } |
| |
| /* not found */ |
| return SNMP_ERR_NOSUCHINSTANCE; |
| } |
| |
| /* --- ipRouteTable --- */ |
| |
| /* list of allowed value ranges for incoming OID */ |
| static const struct snmp_oid_range ip_RouteTable_oid_ranges[] = { |
| { 0, 0xff }, /* IP A */ |
| { 0, 0xff }, /* IP B */ |
| { 0, 0xff }, /* IP C */ |
| { 0, 0xff }, /* IP D */ |
| }; |
| |
| static snmp_err_t |
| ip_RouteTable_get_cell_value_core(struct netif *netif, u8_t default_route, const u32_t* column, union snmp_variant_value* value, u32_t* value_len) |
| { |
| switch (*column) { |
| case 1: /* ipRouteDest */ |
| if (default_route) { |
| /* default rte has 0.0.0.0 dest */ |
| value->u32 = IP4_ADDR_ANY4->addr; |
| } else { |
| /* netifs have netaddress dest */ |
| ip4_addr_t tmp; |
| ip4_addr_get_network(&tmp, netif_ip4_addr(netif), netif_ip4_netmask(netif)); |
| value->u32 = tmp.addr; |
| } |
| break; |
| case 2: /* ipRouteIfIndex */ |
| value->u32 = netif_to_num(netif); |
| break; |
| case 3: /* ipRouteMetric1 */ |
| if (default_route) { |
| value->s32 = 1; /* default */ |
| } else { |
| value->s32 = 0; /* normal */ |
| } |
| break; |
| case 4: /* ipRouteMetric2 */ |
| case 5: /* ipRouteMetric3 */ |
| case 6: /* ipRouteMetric4 */ |
| value->s32 = -1; /* none */ |
| break; |
| case 7: /* ipRouteNextHop */ |
| if (default_route) { |
| /* default rte: gateway */ |
| value->u32 = netif_ip4_gw(netif)->addr; |
| } else { |
| /* other rtes: netif ip_addr */ |
| value->u32 = netif_ip4_addr(netif)->addr; |
| } |
| break; |
| case 8: /* ipRouteType */ |
| if (default_route) { |
| /* default rte is indirect */ |
| value->u32 = 4; /* indirect */ |
| } else { |
| /* other rtes are direct */ |
| value->u32 = 3; /* direct */ |
| } |
| break; |
| case 9: /* ipRouteProto */ |
| /* locally defined routes */ |
| value->u32 = 2; /* local */ |
| break; |
| case 10: /* ipRouteAge */ |
| /* @todo (sysuptime - timestamp last change) / 100 */ |
| value->u32 = 0; |
| break; |
| case 11: /* ipRouteMask */ |
| if (default_route) { |
| /* default rte use 0.0.0.0 mask */ |
| value->u32 = IP4_ADDR_ANY4->addr; |
| } else { |
| /* other rtes use netmask */ |
| value->u32 = netif_ip4_netmask(netif)->addr; |
| } |
| break; |
| case 12: /* ipRouteMetric5 */ |
| value->s32 = -1; /* none */ |
| break; |
| case 13: /* ipRouteInfo */ |
| value->const_ptr = snmp_zero_dot_zero.id; |
| *value_len = snmp_zero_dot_zero.len * sizeof(u32_t); |
| break; |
| default: |
| return SNMP_ERR_NOSUCHINSTANCE; |
| } |
| |
| return SNMP_ERR_NOERROR; |
| } |
| |
| static snmp_err_t |
| ip_RouteTable_get_cell_value(const u32_t* column, const u32_t* row_oid, u8_t row_oid_len, union snmp_variant_value* value, u32_t* value_len) |
| { |
| ip4_addr_t test_ip; |
| struct netif *netif; |
| |
| /* check if incoming OID length and if values are in plausible range */ |
| if (!snmp_oid_in_range(row_oid, row_oid_len, ip_RouteTable_oid_ranges, LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges))) { |
| return SNMP_ERR_NOSUCHINSTANCE; |
| } |
| |
| /* get IP and port from incoming OID */ |
| snmp_oid_to_ip4(&row_oid[0], &test_ip); /* we know it succeeds because of oid_in_range check above */ |
| |
| /* default route is on default netif */ |
| if (ip4_addr_isany_val(test_ip) && (netif_default != NULL)) { |
| /* fill in object properties */ |
| return ip_RouteTable_get_cell_value_core(netif_default, 1, column, value, value_len); |
| } |
| |
| /* find netif with requested route */ |
| netif = netif_list; |
| while (netif != NULL) { |
| ip4_addr_t dst; |
| ip4_addr_get_network(&dst, netif_ip4_addr(netif), netif_ip4_netmask(netif)); |
| |
| if (ip4_addr_cmp(&dst, &test_ip)) { |
| /* fill in object properties */ |
| return ip_RouteTable_get_cell_value_core(netif, 0, column, value, value_len); |
| } |
| |
| netif = netif->next; |
| } |
| |
| /* not found */ |
| return SNMP_ERR_NOSUCHINSTANCE; |
| } |
| |
| static snmp_err_t |
| ip_RouteTable_get_next_cell_instance_and_value(const u32_t* column, struct snmp_obj_id* row_oid, union snmp_variant_value* value, u32_t* value_len) |
| { |
| struct netif *netif; |
| struct snmp_next_oid_state state; |
| u32_t result_temp[LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges)]; |
| u32_t test_oid[LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges)]; |
| |
| /* init struct to search next oid */ |
| snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges)); |
| |
| /* check default route */ |
| if (netif_default != NULL) { |
| snmp_ip4_to_oid(IP4_ADDR_ANY4, &test_oid[0]); |
| snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges), netif_default); |
| } |
| |
| /* iterate over all possible OIDs to find the next one */ |
| netif = netif_list; |
| while (netif != NULL) { |
| ip4_addr_t dst; |
| ip4_addr_get_network(&dst, netif_ip4_addr(netif), netif_ip4_netmask(netif)); |
| |
| /* check generated OID: is it a candidate for the next one? */ |
| if (!ip4_addr_isany_val(dst)) { |
| snmp_ip4_to_oid(&dst, &test_oid[0]); |
| snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(ip_RouteTable_oid_ranges), netif); |
| } |
| |
| netif = netif->next; |
| } |
| |
| /* did we find a next one? */ |
| if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) { |
| ip4_addr_t dst; |
| snmp_oid_to_ip4(&result_temp[0], &dst); |
| snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len); |
| /* fill in object properties */ |
| return ip_RouteTable_get_cell_value_core((struct netif*)state.reference, ip4_addr_isany_val(dst), column, value, value_len); |
| } else { |
| /* not found */ |
| return SNMP_ERR_NOSUCHINSTANCE; |
| } |
| } |
| |
| #if LWIP_ARP && LWIP_IPV4 |
| /* --- ipNetToMediaTable --- */ |
| |
| /* list of allowed value ranges for incoming OID */ |
| static const struct snmp_oid_range ip_NetToMediaTable_oid_ranges[] = { |
| { 1, 0xff }, /* IfIndex */ |
| { 0, 0xff }, /* IP A */ |
| { 0, 0xff }, /* IP B */ |
| { 0, 0xff }, /* IP C */ |
| { 0, 0xff } /* IP D */ |
| }; |
| |
| static snmp_err_t |
| ip_NetToMediaTable_get_cell_value_core(u8_t arp_table_index, const u32_t* column, union snmp_variant_value* value, u32_t* value_len) |
| { |
| ip4_addr_t *ip; |
| struct netif *netif; |
| struct eth_addr *ethaddr; |
| |
| etharp_get_entry(arp_table_index, &ip, &netif, ðaddr); |
| |
| /* value */ |
| switch (*column) { |
| case 1: /* atIfIndex / ipNetToMediaIfIndex */ |
| value->u32 = netif_to_num(netif); |
| break; |
| case 2: /* atPhysAddress / ipNetToMediaPhysAddress */ |
| value->ptr = ethaddr; |
| *value_len = sizeof(*ethaddr); |
| break; |
| case 3: /* atNetAddress / ipNetToMediaNetAddress */ |
| value->u32 = ip->addr; |
| break; |
| case 4: /* ipNetToMediaType */ |
| value->u32 = 3; /* dynamic*/ |
| break; |
| default: |
| return SNMP_ERR_NOSUCHINSTANCE; |
| } |
| |
| return SNMP_ERR_NOERROR; |
| } |
| |
| static snmp_err_t |
| ip_NetToMediaTable_get_cell_value(const u32_t* column, const u32_t* row_oid, u8_t row_oid_len, union snmp_variant_value* value, u32_t* value_len) |
| { |
| ip4_addr_t ip_in; |
| u8_t netif_index; |
| u8_t i; |
| |
| /* check if incoming OID length and if values are in plausible range */ |
| if (!snmp_oid_in_range(row_oid, row_oid_len, ip_NetToMediaTable_oid_ranges, LWIP_ARRAYSIZE(ip_NetToMediaTable_oid_ranges))) { |
| return SNMP_ERR_NOSUCHINSTANCE; |
| } |
| |
| /* get IP from incoming OID */ |
| netif_index = (u8_t)row_oid[0]; |
| snmp_oid_to_ip4(&row_oid[1], &ip_in); /* we know it succeeds because of oid_in_range check above */ |
| |
| /* find requested entry */ |
| for (i=0; i<ARP_TABLE_SIZE; i++) { |
| ip4_addr_t *ip; |
| struct netif *netif; |
| struct eth_addr *ethaddr; |
| |
| if (etharp_get_entry(i, &ip, &netif, ðaddr)) { |
| if ((netif_index == netif_to_num(netif)) && ip4_addr_cmp(&ip_in, ip)) { |
| /* fill in object properties */ |
| return ip_NetToMediaTable_get_cell_value_core(i, column, value, value_len); |
| } |
| } |
| } |
| |
| /* not found */ |
| return SNMP_ERR_NOSUCHINSTANCE; |
| } |
| |
| static snmp_err_t |
| ip_NetToMediaTable_get_next_cell_instance_and_value(const u32_t* column, struct snmp_obj_id* row_oid, union snmp_variant_value* value, u32_t* value_len) |
| { |
| u8_t i; |
| struct snmp_next_oid_state state; |
| u32_t result_temp[LWIP_ARRAYSIZE(ip_NetToMediaTable_oid_ranges)]; |
| |
| /* init struct to search next oid */ |
| snmp_next_oid_init(&state, row_oid->id, row_oid->len, result_temp, LWIP_ARRAYSIZE(ip_NetToMediaTable_oid_ranges)); |
| |
| /* iterate over all possible OIDs to find the next one */ |
| for (i=0; i<ARP_TABLE_SIZE; i++) { |
| ip4_addr_t *ip; |
| struct netif *netif; |
| struct eth_addr *ethaddr; |
| |
| if (etharp_get_entry(i, &ip, &netif, ðaddr)) { |
| u32_t test_oid[LWIP_ARRAYSIZE(ip_NetToMediaTable_oid_ranges)]; |
| |
| test_oid[0] = netif_to_num(netif); |
| snmp_ip4_to_oid(ip, &test_oid[1]); |
| |
| /* check generated OID: is it a candidate for the next one? */ |
| snmp_next_oid_check(&state, test_oid, LWIP_ARRAYSIZE(ip_NetToMediaTable_oid_ranges), LWIP_PTR_NUMERIC_CAST(void*, i)); |
| } |
| } |
| |
| /* did we find a next one? */ |
| if (state.status == SNMP_NEXT_OID_STATUS_SUCCESS) { |
| snmp_oid_assign(row_oid, state.next_oid, state.next_oid_len); |
| /* fill in object properties */ |
| return ip_NetToMediaTable_get_cell_value_core(LWIP_PTR_NUMERIC_CAST(u8_t, state.reference), column, value, value_len); |
| } |
| |
| /* not found */ |
| return SNMP_ERR_NOSUCHINSTANCE; |
| } |
| |
| #endif /* LWIP_ARP && LWIP_IPV4 */ |
| |
| static const struct snmp_scalar_node ip_Forwarding = SNMP_SCALAR_CREATE_NODE(1, SNMP_NODE_INSTANCE_READ_WRITE, SNMP_ASN1_TYPE_INTEGER, ip_get_value, ip_set_test, ip_set_value); |
| static const struct snmp_scalar_node ip_DefaultTTL = SNMP_SCALAR_CREATE_NODE(2, SNMP_NODE_INSTANCE_READ_WRITE, SNMP_ASN1_TYPE_INTEGER, ip_get_value, ip_set_test, ip_set_value); |
| static const struct snmp_scalar_node ip_InReceives = SNMP_SCALAR_CREATE_NODE_READONLY(3, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_InHdrErrors = SNMP_SCALAR_CREATE_NODE_READONLY(4, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_InAddrErrors = SNMP_SCALAR_CREATE_NODE_READONLY(5, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_ForwDatagrams = SNMP_SCALAR_CREATE_NODE_READONLY(6, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_InUnknownProtos = SNMP_SCALAR_CREATE_NODE_READONLY(7, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_InDiscards = SNMP_SCALAR_CREATE_NODE_READONLY(8, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_InDelivers = SNMP_SCALAR_CREATE_NODE_READONLY(9, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_OutRequests = SNMP_SCALAR_CREATE_NODE_READONLY(10, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_OutDiscards = SNMP_SCALAR_CREATE_NODE_READONLY(11, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_OutNoRoutes = SNMP_SCALAR_CREATE_NODE_READONLY(12, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_ReasmTimeout = SNMP_SCALAR_CREATE_NODE_READONLY(13, SNMP_ASN1_TYPE_INTEGER, ip_get_value); |
| static const struct snmp_scalar_node ip_ReasmReqds = SNMP_SCALAR_CREATE_NODE_READONLY(14, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_ReasmOKs = SNMP_SCALAR_CREATE_NODE_READONLY(15, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_ReasmFails = SNMP_SCALAR_CREATE_NODE_READONLY(16, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_FragOKs = SNMP_SCALAR_CREATE_NODE_READONLY(17, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_FragFails = SNMP_SCALAR_CREATE_NODE_READONLY(18, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_FragCreates = SNMP_SCALAR_CREATE_NODE_READONLY(19, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| static const struct snmp_scalar_node ip_RoutingDiscards = SNMP_SCALAR_CREATE_NODE_READONLY(23, SNMP_ASN1_TYPE_COUNTER, ip_get_value); |
| |
| static const struct snmp_table_simple_col_def ip_AddrTable_columns[] = { |
| { 1, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipAdEntAddr */ |
| { 2, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipAdEntIfIndex */ |
| { 3, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipAdEntNetMask */ |
| { 4, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipAdEntBcastAddr */ |
| { 5, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 } /* ipAdEntReasmMaxSize */ |
| }; |
| |
| static const struct snmp_table_simple_node ip_AddrTable = SNMP_TABLE_CREATE_SIMPLE(20, ip_AddrTable_columns, ip_AddrTable_get_cell_value, ip_AddrTable_get_next_cell_instance_and_value); |
| |
| static const struct snmp_table_simple_col_def ip_RouteTable_columns[] = { |
| { 1, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteDest */ |
| { 2, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteIfIndex */ |
| { 3, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_S32 }, /* ipRouteMetric1 */ |
| { 4, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_S32 }, /* ipRouteMetric2 */ |
| { 5, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_S32 }, /* ipRouteMetric3 */ |
| { 6, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_S32 }, /* ipRouteMetric4 */ |
| { 7, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteNextHop */ |
| { 8, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteType */ |
| { 9, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteProto */ |
| { 10, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteAge */ |
| { 11, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipRouteMask */ |
| { 12, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_S32 }, /* ipRouteMetric5 */ |
| { 13, SNMP_ASN1_TYPE_OBJECT_ID, SNMP_VARIANT_VALUE_TYPE_PTR } /* ipRouteInfo */ |
| }; |
| |
| static const struct snmp_table_simple_node ip_RouteTable = SNMP_TABLE_CREATE_SIMPLE(21, ip_RouteTable_columns, ip_RouteTable_get_cell_value, ip_RouteTable_get_next_cell_instance_and_value); |
| #endif /* LWIP_IPV4 */ |
| |
| #if LWIP_ARP && LWIP_IPV4 |
| static const struct snmp_table_simple_col_def ip_NetToMediaTable_columns[] = { |
| { 1, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipNetToMediaIfIndex */ |
| { 2, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_VARIANT_VALUE_TYPE_PTR }, /* ipNetToMediaPhysAddress */ |
| { 3, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 }, /* ipNetToMediaNetAddress */ |
| { 4, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 } /* ipNetToMediaType */ |
| }; |
| |
| static const struct snmp_table_simple_node ip_NetToMediaTable = SNMP_TABLE_CREATE_SIMPLE(22, ip_NetToMediaTable_columns, ip_NetToMediaTable_get_cell_value, ip_NetToMediaTable_get_next_cell_instance_and_value); |
| #endif /* LWIP_ARP && LWIP_IPV4 */ |
| |
| #if LWIP_IPV4 |
| /* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */ |
| CREATE_LWIP_SYNC_NODE( 1, ip_Forwarding) |
| CREATE_LWIP_SYNC_NODE( 2, ip_DefaultTTL) |
| CREATE_LWIP_SYNC_NODE( 3, ip_InReceives) |
| CREATE_LWIP_SYNC_NODE( 4, ip_InHdrErrors) |
| CREATE_LWIP_SYNC_NODE( 5, ip_InAddrErrors) |
| CREATE_LWIP_SYNC_NODE( 6, ip_ForwDatagrams) |
| CREATE_LWIP_SYNC_NODE( 7, ip_InUnknownProtos) |
| CREATE_LWIP_SYNC_NODE( 8, ip_InDiscards) |
| CREATE_LWIP_SYNC_NODE( 9, ip_InDelivers) |
| CREATE_LWIP_SYNC_NODE(10, ip_OutRequests) |
| CREATE_LWIP_SYNC_NODE(11, ip_OutDiscards) |
| CREATE_LWIP_SYNC_NODE(12, ip_OutNoRoutes) |
| CREATE_LWIP_SYNC_NODE(13, ip_ReasmTimeout) |
| CREATE_LWIP_SYNC_NODE(14, ip_ReasmReqds) |
| CREATE_LWIP_SYNC_NODE(15, ip_ReasmOKs) |
| CREATE_LWIP_SYNC_NODE(15, ip_ReasmFails) |
| CREATE_LWIP_SYNC_NODE(17, ip_FragOKs) |
| CREATE_LWIP_SYNC_NODE(18, ip_FragFails) |
| CREATE_LWIP_SYNC_NODE(19, ip_FragCreates) |
| CREATE_LWIP_SYNC_NODE(20, ip_AddrTable) |
| CREATE_LWIP_SYNC_NODE(21, ip_RouteTable) |
| #if LWIP_ARP |
| CREATE_LWIP_SYNC_NODE(22, ip_NetToMediaTable) |
| #endif /* LWIP_ARP */ |
| CREATE_LWIP_SYNC_NODE(23, ip_RoutingDiscards) |
| |
| static const struct snmp_node* const ip_nodes[] = { |
| &SYNC_NODE_NAME(ip_Forwarding).node.node, |
| &SYNC_NODE_NAME(ip_DefaultTTL).node.node, |
| &SYNC_NODE_NAME(ip_InReceives).node.node, |
| &SYNC_NODE_NAME(ip_InHdrErrors).node.node, |
| &SYNC_NODE_NAME(ip_InAddrErrors).node.node, |
| &SYNC_NODE_NAME(ip_ForwDatagrams).node.node, |
| &SYNC_NODE_NAME(ip_InUnknownProtos).node.node, |
| &SYNC_NODE_NAME(ip_InDiscards).node.node, |
| &SYNC_NODE_NAME(ip_InDelivers).node.node, |
| &SYNC_NODE_NAME(ip_OutRequests).node.node, |
| &SYNC_NODE_NAME(ip_OutDiscards).node.node, |
| &SYNC_NODE_NAME(ip_OutNoRoutes).node.node, |
| &SYNC_NODE_NAME(ip_ReasmTimeout).node.node, |
| &SYNC_NODE_NAME(ip_ReasmReqds).node.node, |
| &SYNC_NODE_NAME(ip_ReasmOKs).node.node, |
| &SYNC_NODE_NAME(ip_ReasmFails).node.node, |
| &SYNC_NODE_NAME(ip_FragOKs).node.node, |
| &SYNC_NODE_NAME(ip_FragFails).node.node, |
| &SYNC_NODE_NAME(ip_FragCreates).node.node, |
| &SYNC_NODE_NAME(ip_AddrTable).node.node, |
| &SYNC_NODE_NAME(ip_RouteTable).node.node, |
| #if LWIP_ARP |
| &SYNC_NODE_NAME(ip_NetToMediaTable).node.node, |
| #endif /* LWIP_ARP */ |
| &SYNC_NODE_NAME(ip_RoutingDiscards).node.node |
| }; |
| |
| const struct snmp_tree_node snmp_mib2_ip_root = SNMP_CREATE_TREE_NODE(4, ip_nodes); |
| #endif /* LWIP_IPV4 */ |
| |
| /* --- at .1.3.6.1.2.1.3 ----------------------------------------------------- */ |
| |
| #if LWIP_ARP && LWIP_IPV4 |
| /* at node table is a subset of ip_nettomedia table (same rows but less columns) */ |
| static const struct snmp_table_simple_col_def at_Table_columns[] = { |
| { 1, SNMP_ASN1_TYPE_INTEGER, SNMP_VARIANT_VALUE_TYPE_U32 }, /* atIfIndex */ |
| { 2, SNMP_ASN1_TYPE_OCTET_STRING, SNMP_VARIANT_VALUE_TYPE_PTR }, /* atPhysAddress */ |
| { 3, SNMP_ASN1_TYPE_IPADDR, SNMP_VARIANT_VALUE_TYPE_U32 } /* atNetAddress */ |
| }; |
| |
| static const struct snmp_table_simple_node at_Table = SNMP_TABLE_CREATE_SIMPLE(1, at_Table_columns, ip_NetToMediaTable_get_cell_value, ip_NetToMediaTable_get_next_cell_instance_and_value); |
| |
| /* the following nodes access variables in LWIP stack from SNMP worker thread and must therefore be synced to LWIP (TCPIP) thread */ |
| CREATE_LWIP_SYNC_NODE(1, at_Table) |
| |
| static const struct snmp_node* const at_nodes[] = { |
| &SYNC_NODE_NAME(at_Table).node.node |
| }; |
| |
| const struct snmp_tree_node snmp_mib2_at_root = SNMP_CREATE_TREE_NODE(3, at_nodes); |
| #endif /* LWIP_ARP && LWIP_IPV4 */ |
| |
| #endif /* LWIP_SNMP && SNMP_LWIP_MIB2 */ |