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Diffstat (limited to 'ospfd/ospf_snmp.c')
| -rw-r--r-- | ospfd/ospf_snmp.c | 2443 |
1 files changed, 2443 insertions, 0 deletions
diff --git a/ospfd/ospf_snmp.c b/ospfd/ospf_snmp.c new file mode 100644 index 000000000..6187977e1 --- /dev/null +++ b/ospfd/ospf_snmp.c @@ -0,0 +1,2443 @@ +/* OSPFv2 SNMP support + * Copyright (C) 2000 IP Infusion Inc. + * + * Written by Kunihiro Ishiguro <kunihiro@zebra.org> + * + * 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. + */ + +#include <zebra.h> + +#ifdef HAVE_SNMP +#include <asn1.h> +#include <snmp.h> +#include <snmp_impl.h> + +#include "if.h" +#include "log.h" +#include "prefix.h" +#include "table.h" +#include "command.h" +#include "memory.h" +#include "smux.h" + +#include "ospfd/ospfd.h" +#include "ospfd/ospf_interface.h" +#include "ospfd/ospf_asbr.h" +#include "ospfd/ospf_lsa.h" +#include "ospfd/ospf_lsdb.h" +#include "ospfd/ospf_abr.h" +#include "ospfd/ospf_neighbor.h" +#include "ospfd/ospf_nsm.h" +#include "ospfd/ospf_flood.h" + +/* OSPF2-MIB. */ +#define OSPF2MIB 1,3,6,1,2,1,14 + +/* Zebra enterprise OSPF MIB. This variable is used for register + OSPF MIB to SNMP agent under SMUX protocol. */ +#define OSPFDOID 1,3,6,1,4,1,3317,1,2,5 + +/* OSPF MIB General Group values. */ +#define OSPFROUTERID 1 +#define OSPFADMINSTAT 2 +#define OSPFVERSIONNUMBER 3 +#define OSPFAREABDRRTRSTATUS 4 +#define OSPFASBDRRTRSTATUS 5 +#define OSPFEXTERNLSACOUNT 6 +#define OSPFEXTERNLSACKSUMSUM 7 +#define OSPFTOSSUPPORT 8 +#define OSPFORIGINATENEWLSAS 9 +#define OSPFRXNEWLSAS 10 +#define OSPFEXTLSDBLIMIT 11 +#define OSPFMULTICASTEXTENSIONS 12 +#define OSPFEXITOVERFLOWINTERVAL 13 +#define OSPFDEMANDEXTENSIONS 14 + +/* OSPF MIB ospfAreaTable. */ +#define OSPFAREAID 1 +#define OSPFAUTHTYPE 2 +#define OSPFIMPORTASEXTERN 3 +#define OSPFSPFRUNS 4 +#define OSPFAREABDRRTRCOUNT 5 +#define OSPFASBDRRTRCOUNT 6 +#define OSPFAREALSACOUNT 7 +#define OSPFAREALSACKSUMSUM 8 +#define OSPFAREASUMMARY 9 +#define OSPFAREASTATUS 10 + +/* OSPF MIB ospfStubAreaTable. */ +#define OSPFSTUBAREAID 1 +#define OSPFSTUBTOS 2 +#define OSPFSTUBMETRIC 3 +#define OSPFSTUBSTATUS 4 +#define OSPFSTUBMETRICTYPE 5 + +/* OSPF MIB ospfLsdbTable. */ +#define OSPFLSDBAREAID 1 +#define OSPFLSDBTYPE 2 +#define OSPFLSDBLSID 3 +#define OSPFLSDBROUTERID 4 +#define OSPFLSDBSEQUENCE 5 +#define OSPFLSDBAGE 6 +#define OSPFLSDBCHECKSUM 7 +#define OSPFLSDBADVERTISEMENT 8 + +/* OSPF MIB ospfAreaRangeTable. */ +#define OSPFAREARANGEAREAID 1 +#define OSPFAREARANGENET 2 +#define OSPFAREARANGEMASK 3 +#define OSPFAREARANGESTATUS 4 +#define OSPFAREARANGEEFFECT 5 + +/* OSPF MIB ospfHostTable. */ +#define OSPFHOSTIPADDRESS 1 +#define OSPFHOSTTOS 2 +#define OSPFHOSTMETRIC 3 +#define OSPFHOSTSTATUS 4 +#define OSPFHOSTAREAID 5 + +/* OSPF MIB ospfIfTable. */ +#define OSPFIFIPADDRESS 1 +#define OSPFADDRESSLESSIF 2 +#define OSPFIFAREAID 3 +#define OSPFIFTYPE 4 +#define OSPFIFADMINSTAT 5 +#define OSPFIFRTRPRIORITY 6 +#define OSPFIFTRANSITDELAY 7 +#define OSPFIFRETRANSINTERVAL 8 +#define OSPFIFHELLOINTERVAL 9 +#define OSPFIFRTRDEADINTERVAL 10 +#define OSPFIFPOLLINTERVAL 11 +#define OSPFIFSTATE 12 +#define OSPFIFDESIGNATEDROUTER 13 +#define OSPFIFBACKUPDESIGNATEDROUTER 14 +#define OSPFIFEVENTS 15 +#define OSPFIFAUTHKEY 16 +#define OSPFIFSTATUS 17 +#define OSPFIFMULTICASTFORWARDING 18 +#define OSPFIFDEMAND 19 +#define OSPFIFAUTHTYPE 20 + +/* OSPF MIB ospfIfMetricTable. */ +#define OSPFIFMETRICIPADDRESS 1 +#define OSPFIFMETRICADDRESSLESSIF 2 +#define OSPFIFMETRICTOS 3 +#define OSPFIFMETRICVALUE 4 +#define OSPFIFMETRICSTATUS 5 + +/* OSPF MIB ospfVirtIfTable. */ +#define OSPFVIRTIFAREAID 1 +#define OSPFVIRTIFNEIGHBOR 2 +#define OSPFVIRTIFTRANSITDELAY 3 +#define OSPFVIRTIFRETRANSINTERVAL 4 +#define OSPFVIRTIFHELLOINTERVAL 5 +#define OSPFVIRTIFRTRDEADINTERVAL 6 +#define OSPFVIRTIFSTATE 7 +#define OSPFVIRTIFEVENTS 8 +#define OSPFVIRTIFAUTHKEY 9 +#define OSPFVIRTIFSTATUS 10 +#define OSPFVIRTIFAUTHTYPE 11 + +/* OSPF MIB ospfNbrTable. */ +#define OSPFNBRIPADDR 1 +#define OSPFNBRADDRESSLESSINDEX 2 +#define OSPFNBRRTRID 3 +#define OSPFNBROPTIONS 4 +#define OSPFNBRPRIORITY 5 +#define OSPFNBRSTATE 6 +#define OSPFNBREVENTS 7 +#define OSPFNBRLSRETRANSQLEN 8 +#define OSPFNBMANBRSTATUS 9 +#define OSPFNBMANBRPERMANENCE 10 +#define OSPFNBRHELLOSUPPRESSED 11 + +/* OSPF MIB ospfVirtNbrTable. */ +#define OSPFVIRTNBRAREA 1 +#define OSPFVIRTNBRRTRID 2 +#define OSPFVIRTNBRIPADDR 3 +#define OSPFVIRTNBROPTIONS 4 +#define OSPFVIRTNBRSTATE 5 +#define OSPFVIRTNBREVENTS 6 +#define OSPFVIRTNBRLSRETRANSQLEN 7 +#define OSPFVIRTNBRHELLOSUPPRESSED 8 + +/* OSPF MIB ospfExtLsdbTable. */ +#define OSPFEXTLSDBTYPE 1 +#define OSPFEXTLSDBLSID 2 +#define OSPFEXTLSDBROUTERID 3 +#define OSPFEXTLSDBSEQUENCE 4 +#define OSPFEXTLSDBAGE 5 +#define OSPFEXTLSDBCHECKSUM 6 +#define OSPFEXTLSDBADVERTISEMENT 7 + +/* OSPF MIB ospfAreaAggregateTable. */ +#define OSPFAREAAGGREGATEAREAID 1 +#define OSPFAREAAGGREGATELSDBTYPE 2 +#define OSPFAREAAGGREGATENET 3 +#define OSPFAREAAGGREGATEMASK 4 +#define OSPFAREAAGGREGATESTATUS 5 +#define OSPFAREAAGGREGATEEFFECT 6 + +/* SYNTAX Status from OSPF-MIB. */ +#define OSPF_STATUS_ENABLED 1 +#define OSPF_STATUS_DISABLED 2 + +/* SNMP value hack. */ +#define COUNTER ASN_COUNTER +#define INTEGER ASN_INTEGER +#define GAUGE ASN_GAUGE +#define TIMETICKS ASN_TIMETICKS +#define IPADDRESS ASN_IPADDRESS +#define STRING ASN_OCTET_STR + +/* Declare static local variables for convenience. */ +SNMP_LOCAL_VARIABLES + +/* OSPF-MIB instances. */ +oid ospf_oid [] = { OSPF2MIB }; +oid ospfd_oid [] = { OSPFDOID }; + +/* IP address 0.0.0.0. */ +static struct in_addr ospf_empty_addr = {0}; + +/* Hook functions. */ +static u_char *ospfGeneralGroup (); +static u_char *ospfAreaEntry (); +static u_char *ospfStubAreaEntry (); +static u_char *ospfLsdbEntry (); +static u_char *ospfAreaRangeEntry (); +static u_char *ospfHostEntry (); +static u_char *ospfIfEntry (); +static u_char *ospfIfMetricEntry (); +static u_char *ospfVirtIfEntry (); +static u_char *ospfNbrEntry (); +static u_char *ospfVirtNbrEntry (); +static u_char *ospfExtLsdbEntry (); +static u_char *ospfAreaAggregateEntry (); + +struct variable ospf_variables[] = +{ + /* OSPF general variables */ + {OSPFROUTERID, IPADDRESS, RWRITE, ospfGeneralGroup, + 2, {1, 1}}, + {OSPFADMINSTAT, INTEGER, RWRITE, ospfGeneralGroup, + 2, {1, 2}}, + {OSPFVERSIONNUMBER, INTEGER, RONLY, ospfGeneralGroup, + 2, {1, 3}}, + {OSPFAREABDRRTRSTATUS, INTEGER, RONLY, ospfGeneralGroup, + 2, {1, 4}}, + {OSPFASBDRRTRSTATUS, INTEGER, RWRITE, ospfGeneralGroup, + 2, {1, 5}}, + {OSPFEXTERNLSACOUNT, GAUGE, RONLY, ospfGeneralGroup, + 2, {1, 6}}, + {OSPFEXTERNLSACKSUMSUM, INTEGER, RONLY, ospfGeneralGroup, + 2, {1, 7}}, + {OSPFTOSSUPPORT, INTEGER, RWRITE, ospfGeneralGroup, + 2, {1, 8}}, + {OSPFORIGINATENEWLSAS, COUNTER, RONLY, ospfGeneralGroup, + 2, {1, 9}}, + {OSPFRXNEWLSAS, COUNTER, RONLY, ospfGeneralGroup, + 2, {1, 10}}, + {OSPFEXTLSDBLIMIT, INTEGER, RWRITE, ospfGeneralGroup, + 2, {1, 11}}, + {OSPFMULTICASTEXTENSIONS, INTEGER, RWRITE, ospfGeneralGroup, + 2, {1, 12}}, + {OSPFEXITOVERFLOWINTERVAL, INTEGER, RWRITE, ospfGeneralGroup, + 2, {1, 13}}, + {OSPFDEMANDEXTENSIONS, INTEGER, RWRITE, ospfGeneralGroup, + 2, {1, 14}}, + + /* OSPF area data structure. */ + {OSPFAREAID, IPADDRESS, RONLY, ospfAreaEntry, + 3, {2, 1, 1}}, + {OSPFAUTHTYPE, INTEGER, RWRITE, ospfAreaEntry, + 3, {2, 1, 2}}, + {OSPFIMPORTASEXTERN, INTEGER, RWRITE, ospfAreaEntry, + 3, {2, 1, 3}}, + {OSPFSPFRUNS, COUNTER, RONLY, ospfAreaEntry, + 3, {2, 1, 4}}, + {OSPFAREABDRRTRCOUNT, GAUGE, RONLY, ospfAreaEntry, + 3, {2, 1, 5}}, + {OSPFASBDRRTRCOUNT, GAUGE, RONLY, ospfAreaEntry, + 3, {2, 1, 6}}, + {OSPFAREALSACOUNT, GAUGE, RONLY, ospfAreaEntry, + 3, {2, 1, 7}}, + {OSPFAREALSACKSUMSUM, INTEGER, RONLY, ospfAreaEntry, + 3, {2, 1, 8}}, + {OSPFAREASUMMARY, INTEGER, RWRITE, ospfAreaEntry, + 3, {2, 1, 9}}, + {OSPFAREASTATUS, INTEGER, RWRITE, ospfAreaEntry, + 3, {2, 1, 10}}, + + /* OSPF stub area information. */ + {OSPFSTUBAREAID, IPADDRESS, RONLY, ospfStubAreaEntry, + 3, {3, 1, 1}}, + {OSPFSTUBTOS, INTEGER, RONLY, ospfStubAreaEntry, + 3, {3, 1, 2}}, + {OSPFSTUBMETRIC, INTEGER, RWRITE, ospfStubAreaEntry, + 3, {3, 1, 3}}, + {OSPFSTUBSTATUS, INTEGER, RWRITE, ospfStubAreaEntry, + 3, {3, 1, 4}}, + {OSPFSTUBMETRICTYPE, INTEGER, RWRITE, ospfStubAreaEntry, + 3, {3, 1, 5}}, + + /* OSPF link state database. */ + {OSPFLSDBAREAID, IPADDRESS, RONLY, ospfLsdbEntry, + 3, {4, 1, 1}}, + {OSPFLSDBTYPE, INTEGER, RONLY, ospfLsdbEntry, + 3, {4, 1, 2}}, + {OSPFLSDBLSID, IPADDRESS, RONLY, ospfLsdbEntry, + 3, {4, 1, 3}}, + {OSPFLSDBROUTERID, IPADDRESS, RONLY, ospfLsdbEntry, + 3, {4, 1, 4}}, + {OSPFLSDBSEQUENCE, INTEGER, RONLY, ospfLsdbEntry, + 3, {4, 1, 5}}, + {OSPFLSDBAGE, INTEGER, RONLY, ospfLsdbEntry, + 3, {4, 1, 6}}, + {OSPFLSDBCHECKSUM, INTEGER, RONLY, ospfLsdbEntry, + 3, {4, 1, 7}}, + {OSPFLSDBADVERTISEMENT, STRING, RONLY, ospfLsdbEntry, + 3, {4, 1, 8}}, + + /* Area range table. */ + {OSPFAREARANGEAREAID, IPADDRESS, RONLY, ospfAreaRangeEntry, + 3, {5, 1, 1}}, + {OSPFAREARANGENET, IPADDRESS, RONLY, ospfAreaRangeEntry, + 3, {5, 1, 2}}, + {OSPFAREARANGEMASK, IPADDRESS, RWRITE, ospfAreaRangeEntry, + 3, {5, 1, 3}}, + {OSPFAREARANGESTATUS, INTEGER, RWRITE, ospfAreaRangeEntry, + 3, {5, 1, 4}}, + {OSPFAREARANGEEFFECT, INTEGER, RWRITE, ospfAreaRangeEntry, + 3, {5, 1, 5}}, + + /* OSPF host table. */ + {OSPFHOSTIPADDRESS, IPADDRESS, RONLY, ospfHostEntry, + 3, {6, 1, 1}}, + {OSPFHOSTTOS, INTEGER, RONLY, ospfHostEntry, + 3, {6, 1, 2}}, + {OSPFHOSTMETRIC, INTEGER, RWRITE, ospfHostEntry, + 3, {6, 1, 3}}, + {OSPFHOSTSTATUS, INTEGER, RWRITE, ospfHostEntry, + 3, {6, 1, 4}}, + {OSPFHOSTAREAID, IPADDRESS, RONLY, ospfHostEntry, + 3, {6, 1, 5}}, + + /* OSPF interface table. */ + {OSPFIFIPADDRESS, IPADDRESS, RONLY, ospfIfEntry, + 3, {7, 1, 1}}, + {OSPFADDRESSLESSIF, INTEGER, RONLY, ospfIfEntry, + 3, {7, 1, 2}}, + {OSPFIFAREAID, IPADDRESS, RWRITE, ospfIfEntry, + 3, {7, 1, 3}}, + {OSPFIFTYPE, INTEGER, RWRITE, ospfIfEntry, + 3, {7, 1, 4}}, + {OSPFIFADMINSTAT, INTEGER, RWRITE, ospfIfEntry, + 3, {7, 1, 5}}, + {OSPFIFRTRPRIORITY, INTEGER, RWRITE, ospfIfEntry, + 3, {7, 1, 6}}, + {OSPFIFTRANSITDELAY, INTEGER, RWRITE, ospfIfEntry, + 3, {7, 1, 7}}, + {OSPFIFRETRANSINTERVAL, INTEGER, RWRITE, ospfIfEntry, + 3, {7, 1, 8}}, + {OSPFIFHELLOINTERVAL, INTEGER, RWRITE, ospfIfEntry, + 3, {7, 1, 9}}, + {OSPFIFRTRDEADINTERVAL, INTEGER, RWRITE, ospfIfEntry, + 3, {7, 1, 10}}, + {OSPFIFPOLLINTERVAL, INTEGER, RWRITE, ospfIfEntry, + 3, {7, 1, 11}}, + {OSPFIFSTATE, INTEGER, RONLY, ospfIfEntry, + 3, {7, 1, 12}}, + {OSPFIFDESIGNATEDROUTER, IPADDRESS, RONLY, ospfIfEntry, + 3, {7, 1, 13}}, + {OSPFIFBACKUPDESIGNATEDROUTER, IPADDRESS, RONLY, ospfIfEntry, + 3, {7, 1, 14}}, + {OSPFIFEVENTS, COUNTER, RONLY, ospfIfEntry, + 3, {7, 1, 15}}, + {OSPFIFAUTHKEY, STRING, RWRITE, ospfIfEntry, + 3, {7, 1, 16}}, + {OSPFIFSTATUS, INTEGER, RWRITE, ospfIfEntry, + 3, {7, 1, 17}}, + {OSPFIFMULTICASTFORWARDING, INTEGER, RWRITE, ospfIfEntry, + 3, {7, 1, 18}}, + {OSPFIFDEMAND, INTEGER, RWRITE, ospfIfEntry, + 3, {7, 1, 19}}, + {OSPFIFAUTHTYPE, INTEGER, RWRITE, ospfIfEntry, + 3, {7, 1, 20}}, + + /* OSPF interface metric table. */ + {OSPFIFMETRICIPADDRESS, IPADDRESS, RONLY, ospfIfMetricEntry, + 3, {8, 1, 1}}, + {OSPFIFMETRICADDRESSLESSIF, INTEGER, RONLY, ospfIfMetricEntry, + 3, {8, 1, 2}}, + {OSPFIFMETRICTOS, INTEGER, RONLY, ospfIfMetricEntry, + 3, {8, 1, 3}}, + {OSPFIFMETRICVALUE, INTEGER, RWRITE, ospfIfMetricEntry, + 3, {8, 1, 4}}, + {OSPFIFMETRICSTATUS, INTEGER, RWRITE, ospfIfMetricEntry, + 3, {8, 1, 5}}, + + /* OSPF virtual interface table. */ + {OSPFVIRTIFAREAID, IPADDRESS, RONLY, ospfVirtIfEntry, + 3, {9, 1, 1}}, + {OSPFVIRTIFNEIGHBOR, IPADDRESS, RONLY, ospfVirtIfEntry, + 3, {9, 1, 2}}, + {OSPFVIRTIFTRANSITDELAY, INTEGER, RWRITE, ospfVirtIfEntry, + 3, {9, 1, 3}}, + {OSPFVIRTIFRETRANSINTERVAL, INTEGER, RWRITE, ospfVirtIfEntry, + 3, {9, 1, 4}}, + {OSPFVIRTIFHELLOINTERVAL, INTEGER, RWRITE, ospfVirtIfEntry, + 3, {9, 1, 5}}, + {OSPFVIRTIFRTRDEADINTERVAL, INTEGER, RWRITE, ospfVirtIfEntry, + 3, {9, 1, 6}}, + {OSPFVIRTIFSTATE, INTEGER, RONLY, ospfVirtIfEntry, + 3, {9, 1, 7}}, + {OSPFVIRTIFEVENTS, COUNTER, RONLY, ospfVirtIfEntry, + 3, {9, 1, 8}}, + {OSPFVIRTIFAUTHKEY, STRING, RWRITE, ospfVirtIfEntry, + 3, {9, 1, 9}}, + {OSPFVIRTIFSTATUS, INTEGER, RWRITE, ospfVirtIfEntry, + 3, {9, 1, 10}}, + {OSPFVIRTIFAUTHTYPE, INTEGER, RWRITE, ospfVirtIfEntry, + 3, {9, 1, 11}}, + + /* OSPF neighbor table. */ + {OSPFNBRIPADDR, IPADDRESS, RONLY, ospfNbrEntry, + 3, {10, 1, 1}}, + {OSPFNBRADDRESSLESSINDEX, INTEGER, RONLY, ospfNbrEntry, + 3, {10, 1, 2}}, + {OSPFNBRRTRID, IPADDRESS, RONLY, ospfNbrEntry, + 3, {10, 1, 3}}, + {OSPFNBROPTIONS, INTEGER, RONLY, ospfNbrEntry, + 3, {10, 1, 4}}, + {OSPFNBRPRIORITY, INTEGER, RWRITE, ospfNbrEntry, + 3, {10, 1, 5}}, + {OSPFNBRSTATE, INTEGER, RONLY, ospfNbrEntry, + 3, {10, 1, 6}}, + {OSPFNBREVENTS, COUNTER, RONLY, ospfNbrEntry, + 3, {10, 1, 7}}, + {OSPFNBRLSRETRANSQLEN, GAUGE, RONLY, ospfNbrEntry, + 3, {10, 1, 8}}, + {OSPFNBMANBRSTATUS, INTEGER, RWRITE, ospfNbrEntry, + 3, {10, 1, 9}}, + {OSPFNBMANBRPERMANENCE, INTEGER, RONLY, ospfNbrEntry, + 3, {10, 1, 10}}, + {OSPFNBRHELLOSUPPRESSED, INTEGER, RONLY, ospfNbrEntry, + 3, {10, 1, 11}}, + + /* OSPF virtual neighbor table. */ + {OSPFVIRTNBRAREA, IPADDRESS, RONLY, ospfVirtNbrEntry, + 3, {11, 1, 1}}, + {OSPFVIRTNBRRTRID, IPADDRESS, RONLY, ospfVirtNbrEntry, + 3, {11, 1, 2}}, + {OSPFVIRTNBRIPADDR, IPADDRESS, RONLY, ospfVirtNbrEntry, + 3, {11, 1, 3}}, + {OSPFVIRTNBROPTIONS, INTEGER, RONLY, ospfVirtNbrEntry, + 3, {11, 1, 4}}, + {OSPFVIRTNBRSTATE, INTEGER, RONLY, ospfVirtNbrEntry, + 3, {11, 1, 5}}, + {OSPFVIRTNBREVENTS, COUNTER, RONLY, ospfVirtNbrEntry, + 3, {11, 1, 6}}, + {OSPFVIRTNBRLSRETRANSQLEN, INTEGER, RONLY, ospfVirtNbrEntry, + 3, {11, 1, 7}}, + {OSPFVIRTNBRHELLOSUPPRESSED, INTEGER, RONLY, ospfVirtNbrEntry, + 3, {11, 1, 8}}, + + /* OSPF link state database, external. */ + {OSPFEXTLSDBTYPE, INTEGER, RONLY, ospfExtLsdbEntry, + 3, {12, 1, 1}}, + {OSPFEXTLSDBLSID, IPADDRESS, RONLY, ospfExtLsdbEntry, + 3, {12, 1, 2}}, + {OSPFEXTLSDBROUTERID, IPADDRESS, RONLY, ospfExtLsdbEntry, + 3, {12, 1, 3}}, + {OSPFEXTLSDBSEQUENCE, INTEGER, RONLY, ospfExtLsdbEntry, + 3, {12, 1, 4}}, + {OSPFEXTLSDBAGE, INTEGER, RONLY, ospfExtLsdbEntry, + 3, {12, 1, 5}}, + {OSPFEXTLSDBCHECKSUM, INTEGER, RONLY, ospfExtLsdbEntry, + 3, {12, 1, 6}}, + {OSPFEXTLSDBADVERTISEMENT, STRING, RONLY, ospfExtLsdbEntry, + 3, {12, 1, 7}}, + + /* OSPF area aggregate table. */ + {OSPFAREAAGGREGATEAREAID, IPADDRESS, RONLY, ospfAreaAggregateEntry, + 3, {14, 1, 1}}, + {OSPFAREAAGGREGATELSDBTYPE, INTEGER, RONLY, ospfAreaAggregateEntry, + 3, {14, 1, 2}}, + {OSPFAREAAGGREGATENET, IPADDRESS, RONLY, ospfAreaAggregateEntry, + 3, {14, 1, 3}}, + {OSPFAREAAGGREGATEMASK, IPADDRESS, RONLY, ospfAreaAggregateEntry, + 3, {14, 1, 4}}, + {OSPFAREAAGGREGATESTATUS, INTEGER, RWRITE, ospfAreaAggregateEntry, + 3, {14, 1, 5}}, + {OSPFAREAAGGREGATEEFFECT, INTEGER, RWRITE, ospfAreaAggregateEntry, + 3, {14, 1, 6}} +}; + +/* The administrative status of OSPF. When OSPF is enbled on at least + one interface return 1. */ +int +ospf_admin_stat () +{ + listnode node; + struct ospf_interface *oi; + + if (! ospf_top) + return 0; + + for (node = listhead (ospf_top->oiflist); node; nextnode (node)) + { + oi = getdata (node); + + if (oi && oi->address) + return 1; + } + return 0; +} + +static u_char * +ospfGeneralGroup (struct variable *v, oid *name, size_t *length, + int exact, size_t *var_len, WriteMethod **write_method) +{ + /* Check whether the instance identifier is valid */ + if (smux_header_generic (v, name, length, exact, var_len, write_method) + == MATCH_FAILED) + return NULL; + + /* Return the current value of the variable */ + switch (v->magic) + { + case OSPFROUTERID: /* 1 */ + /* Router-ID of this OSPF instance. */ + if (ospf_top) + return SNMP_IPADDRESS (ospf_top->router_id); + else + return SNMP_IPADDRESS (ospf_empty_addr); + break; + case OSPFADMINSTAT: /* 2 */ + /* The administrative status of OSPF in the router. */ + if (ospf_admin_stat ()) + return SNMP_INTEGER (OSPF_STATUS_ENABLED); + else + return SNMP_INTEGER (OSPF_STATUS_DISABLED); + break; + case OSPFVERSIONNUMBER: /* 3 */ + /* OSPF version 2. */ + return SNMP_INTEGER (OSPF_VERSION); + break; + case OSPFAREABDRRTRSTATUS: /* 4 */ + /* Area Border router status. */ + if (ospf_top && CHECK_FLAG (ospf_top->flags, OSPF_FLAG_ABR)) + return SNMP_INTEGER (SNMP_TRUE); + else + return SNMP_INTEGER (SNMP_FALSE); + break; + case OSPFASBDRRTRSTATUS: /* 5 */ + /* AS Border router status. */ + if (ospf_top && CHECK_FLAG (ospf_top->flags, OSPF_FLAG_ASBR)) + return SNMP_INTEGER (SNMP_TRUE); + else + return SNMP_INTEGER (SNMP_FALSE); + break; + case OSPFEXTERNLSACOUNT: /* 6 */ + /* External LSA counts. */ + if (ospf_top) + return SNMP_INTEGER (ospf_lsdb_count_all (ospf_top->lsdb)); + else + return SNMP_INTEGER (0); + break; + case OSPFEXTERNLSACKSUMSUM: /* 7 */ + /* External LSA checksum. */ + return SNMP_INTEGER (0); + break; + case OSPFTOSSUPPORT: /* 8 */ + /* TOS is not supported. */ + return SNMP_INTEGER (SNMP_FALSE); + break; + case OSPFORIGINATENEWLSAS: /* 9 */ + /* The number of new link-state advertisements. */ + if (ospf_top) + return SNMP_INTEGER (ospf_top->lsa_originate_count); + else + return SNMP_INTEGER (0); + break; + case OSPFRXNEWLSAS: /* 10 */ + /* The number of link-state advertisements received determined + to be new instantiations. */ + if (ospf_top) + return SNMP_INTEGER (ospf_top->rx_lsa_count); + else + return SNMP_INTEGER (0); + break; + case OSPFEXTLSDBLIMIT: /* 11 */ + /* There is no limit for the number of non-default + AS-external-LSAs. */ + return SNMP_INTEGER (-1); + break; + case OSPFMULTICASTEXTENSIONS: /* 12 */ + /* Multicast Extensions to OSPF is not supported. */ + return SNMP_INTEGER (0); + break; + case OSPFEXITOVERFLOWINTERVAL: /* 13 */ + /* Overflow is not supported. */ + return SNMP_INTEGER (0); + break; + case OSPFDEMANDEXTENSIONS: /* 14 */ + /* Demand routing is not supported. */ + return SNMP_INTEGER (SNMP_FALSE); + break; + default: + return NULL; + } + return NULL; +} + +struct ospf_area * +ospf_area_lookup_next (struct in_addr *area_id, int first) +{ + struct ospf_area *area; + listnode node; + + if (! ospf_top) + return NULL; + + if (first) + { + node = listhead (ospf_top->areas); + if (node) + { + area = getdata (node); + *area_id = area->area_id; + return area; + } + return NULL; + } + for (node = listhead (ospf_top->areas); node; nextnode (node)) + { + area = getdata (node); + + if (ntohl (area->area_id.s_addr) > ntohl (area_id->s_addr)) + { + *area_id = area->area_id; + return area; + } + } + return NULL; +} + +struct ospf_area * +ospfAreaLookup (struct variable *v, oid name[], size_t *length, + struct in_addr *addr, int exact) +{ + int len; + struct ospf_area *area; + + if (! ospf_top) + return NULL; + + if (exact) + { + /* Length is insufficient to lookup OSPF area. */ + if (*length - v->namelen != sizeof (struct in_addr)) + return NULL; + + oid2in_addr (name + v->namelen, sizeof (struct in_addr), addr); + + area = ospf_area_lookup_by_area_id (*addr); + + return area; + } + else + { + len = *length - v->namelen; + if (len > 4) + len = 4; + + oid2in_addr (name + v->namelen, len, addr); + + area = ospf_area_lookup_next (addr, len == 0 ? 1 : 0); + + if (area == NULL) + return NULL; + + oid_copy_addr (name + v->namelen, addr, sizeof (struct in_addr)); + *length = sizeof (struct in_addr) + v->namelen; + + return area; + } + return NULL; +} + +static u_char * +ospfAreaEntry (struct variable *v, oid *name, size_t *length, int exact, + size_t *var_len, WriteMethod **write_method) +{ + struct ospf_area *area; + struct in_addr addr; + + memset (&addr, 0, sizeof (struct in_addr)); + + area = ospfAreaLookup (v, name, length, &addr, exact); + if (! area) + return NULL; + + /* Return the current value of the variable */ + switch (v->magic) + { + case OSPFAREAID: /* 1 */ + return SNMP_IPADDRESS (area->area_id); + break; + case OSPFAUTHTYPE: /* 2 */ + return SNMP_INTEGER (area->auth_type); + break; + case OSPFIMPORTASEXTERN: /* 3 */ + return SNMP_INTEGER (area->external_routing + 1); + break; + case OSPFSPFRUNS: /* 4 */ + return SNMP_INTEGER (area->spf_calculation); + break; + case OSPFAREABDRRTRCOUNT: /* 5 */ + return SNMP_INTEGER (area->abr_count); + break; + case OSPFASBDRRTRCOUNT: /* 6 */ + return SNMP_INTEGER (area->asbr_count); + break; + case OSPFAREALSACOUNT: /* 7 */ + return SNMP_INTEGER (area->lsdb->total); + break; + case OSPFAREALSACKSUMSUM: /* 8 */ + return SNMP_INTEGER (0); + break; + case OSPFAREASUMMARY: /* 9 */ +#define OSPF_noAreaSummary 1 +#define OSPF_sendAreaSummary 2 + if (area->no_summary) + return SNMP_INTEGER (OSPF_noAreaSummary); + else + return SNMP_INTEGER (OSPF_sendAreaSummary); + break; + case OSPFAREASTATUS: /* 10 */ + return SNMP_INTEGER (SNMP_VALID); + break; + default: + return NULL; + break; + } + return NULL; +} + +struct ospf_area * +ospf_stub_area_lookup_next (struct in_addr *area_id, int first) +{ + struct ospf_area *area; + listnode node; + + if (! ospf_top) + return NULL; + + for (node = listhead (ospf_top->areas); node; nextnode (node)) + { + area = getdata (node); + + if (area->external_routing == OSPF_AREA_STUB) + { + if (first) + { + *area_id = area->area_id; + return area; + } + else if (ntohl (area->area_id.s_addr) > ntohl (area_id->s_addr)) + { + *area_id = area->area_id; + return area; + } + } + } + return NULL; +} + +struct ospf_area * +ospfStubAreaLookup (struct variable *v, oid name[], size_t *length, + struct in_addr *addr, int exact) +{ + int len; + struct ospf_area *area; + + if (! ospf_top) + return NULL; + + /* Exact lookup. */ + if (exact) + { + /* ospfStubAreaID + ospfStubTOS. */ + if (*length != v->namelen + sizeof (struct in_addr) + 1) + return NULL; + + /* Check ospfStubTOS is zero. */ + if (name[*length - 1] != 0) + return NULL; + + oid2in_addr (name + v->namelen, sizeof (struct in_addr), addr); + + area = ospf_area_lookup_by_area_id (*addr); + + if (area->external_routing == OSPF_AREA_STUB) + return area; + else + return NULL; + } + else + { + len = *length - v->namelen; + if (len > 4) + len = 4; + + oid2in_addr (name + v->namelen, len, addr); + + area = ospf_stub_area_lookup_next (addr, len == 0 ? 1 : 0); + + if (area == NULL) + return NULL; + + oid_copy_addr (name + v->namelen, addr, sizeof (struct in_addr)); + /* Set TOS 0. */ + name[v->namelen + sizeof (struct in_addr)] = 0; + *length = v->namelen + sizeof (struct in_addr) + 1; + + return area; + } + return NULL; +} + +static u_char * +ospfStubAreaEntry (struct variable *v, oid *name, size_t *length, + int exact, size_t *var_len, WriteMethod **write_method) +{ + struct ospf_area *area; + struct in_addr addr; + + memset (&addr, 0, sizeof (struct in_addr)); + + area = ospfStubAreaLookup (v, name, length, &addr, exact); + if (! area) + return NULL; + + /* Return the current value of the variable */ + switch (v->magic) + { + case OSPFSTUBAREAID: /* 1 */ + /* OSPF stub area id. */ + return SNMP_IPADDRESS (area->area_id); + break; + case OSPFSTUBTOS: /* 2 */ + /* TOS value is not supported. */ + return SNMP_INTEGER (0); + break; + case OSPFSTUBMETRIC: /* 3 */ + /* Default cost to stub area. */ + return SNMP_INTEGER (area->default_cost); + break; + case OSPFSTUBSTATUS: /* 4 */ + /* Status of the stub area. */ + return SNMP_INTEGER (SNMP_VALID); + break; + case OSPFSTUBMETRICTYPE: /* 5 */ + /* OSPF Metric type. */ +#define OSPF_ospfMetric 1 +#define OSPF_comparableCost 2 +#define OSPF_nonComparable 3 + return SNMP_INTEGER (OSPF_ospfMetric); + break; + default: + return NULL; + break; + } + return NULL; +} + +struct ospf_lsa * +lsdb_lookup_next (struct ospf_area *area, u_char *type, int type_next, + struct in_addr *ls_id, int ls_id_next, + struct in_addr *router_id, int router_id_next) +{ + struct ospf_lsa *lsa; + int i; + + if (type_next) + i = OSPF_MIN_LSA; + else + i = *type; + + for (; i < OSPF_MAX_LSA; i++) + { + *type = i; + + lsa = ospf_lsdb_lookup_by_id_next (area->lsdb, *type, *ls_id, *router_id, + ls_id_next); + if (lsa) + return lsa; + + ls_id_next = 1; + } + return NULL; +} + +struct ospf_lsa * +ospfLsdbLookup (struct variable *v, oid *name, size_t *length, + struct in_addr *area_id, u_char *type, + struct in_addr *ls_id, struct in_addr *router_id, int exact) +{ + struct ospf_area *area; + struct ospf_lsa *lsa; + int len; + int type_next; + int ls_id_next; + int router_id_next; + oid *offset; + int offsetlen; + +#define OSPF_LSDB_ENTRY_OFFSET \ + (IN_ADDR_SIZE + 1 + IN_ADDR_SIZE + IN_ADDR_SIZE) + + if (exact) + { + /* Area ID + Type + LS ID + Router ID. */ + if (*length - v->namelen != OSPF_LSDB_ENTRY_OFFSET) + return NULL; + + /* Set OID offset for Area ID. */ + offset = name + v->namelen; + + /* Lookup area first. */ + oid2in_addr (offset, IN_ADDR_SIZE, area_id); + area = ospf_area_lookup_by_area_id (*area_id); + if (! area) + return NULL; + offset += IN_ADDR_SIZE; + + /* Type. */ + *type = *offset; + offset++; + + /* LS ID. */ + oid2in_addr (offset, IN_ADDR_SIZE, ls_id); + offset += IN_ADDR_SIZE; + + /* Router ID. */ + oid2in_addr (offset, IN_ADDR_SIZE, router_id); + + /* Lookup LSDB. */ + return ospf_lsdb_lookup_by_id (area->lsdb, *type, *ls_id, *router_id); + } + else + { + /* Get variable length. */ + offset = name + v->namelen; + offsetlen = *length - v->namelen; + len = offsetlen; + + if (len > IN_ADDR_SIZE) + len = IN_ADDR_SIZE; + + oid2in_addr (offset, len, area_id); + + /* First we search area. */ + if (len == IN_ADDR_SIZE) + area = ospf_area_lookup_by_area_id (*area_id); + else + area = ospf_area_lookup_next (area_id, len == 0 ? 1 : 0); + + if (area == NULL) + return NULL; + + do + { + /* Next we lookup type. */ + offset += IN_ADDR_SIZE; + offsetlen -= IN_ADDR_SIZE; + len = offsetlen; + + if (len <= 0) + type_next = 1; + else + { + len = 1; + type_next = 0; + *type = *offset; + } + + /* LS ID. */ + offset++; + offsetlen--; + len = offsetlen; + + if (len <= 0) + ls_id_next = 1; + else + { + ls_id_next = 0; + if (len > IN_ADDR_SIZE) + len = IN_ADDR_SIZE; + + oid2in_addr (offset, len, ls_id); + } + + /* Router ID. */ + offset += IN_ADDR_SIZE; + offsetlen -= IN_ADDR_SIZE; + len = offsetlen; + + if (len <= 0) + router_id_next = 1; + else + { + router_id_next = 0; + if (len > IN_ADDR_SIZE) + len = IN_ADDR_SIZE; + + oid2in_addr (offset, len, router_id); + } + + lsa = lsdb_lookup_next (area, type, type_next, ls_id, ls_id_next, + router_id, router_id_next); + + if (lsa) + { + /* Fill in length. */ + *length = v->namelen + OSPF_LSDB_ENTRY_OFFSET; + + /* Fill in value. */ + offset = name + v->namelen; + oid_copy_addr (offset, area_id, IN_ADDR_SIZE); + offset += IN_ADDR_SIZE; + *offset = lsa->data->type; + offset++; + oid_copy_addr (offset, &lsa->data->id, IN_ADDR_SIZE); + offset += IN_ADDR_SIZE; + oid_copy_addr (offset, &lsa->data->adv_router, IN_ADDR_SIZE); + + return lsa; + } + } + while ((area = ospf_area_lookup_next (area_id, 0)) != NULL); + } + return NULL; +} + +static u_char * +ospfLsdbEntry (struct variable *v, oid *name, size_t *length, int exact, + size_t *var_len, WriteMethod **write_method) +{ + struct ospf_lsa *lsa; + struct lsa_header *lsah; + struct in_addr area_id; + u_char type; + struct in_addr ls_id; + struct in_addr router_id; + + /* INDEX { ospfLsdbAreaId, ospfLsdbType, + ospfLsdbLsid, ospfLsdbRouterId } */ + + memset (&area_id, 0, sizeof (struct in_addr)); + type = 0; + memset (&ls_id, 0, sizeof (struct in_addr)); + memset (&router_id, 0, sizeof (struct in_addr)); + + /* Check OSPF instance. */ + if (! ospf_top) + return NULL; + + lsa = ospfLsdbLookup (v, name, length, &area_id, &type, &ls_id, &router_id, + exact); + if (! lsa) + return NULL; + + lsah = lsa->data; + + /* Return the current value of the variable */ + switch (v->magic) + { + case OSPFLSDBAREAID: /* 1 */ + return SNMP_IPADDRESS (lsa->area->area_id); + break; + case OSPFLSDBTYPE: /* 2 */ + return SNMP_INTEGER (lsah->type); + break; + case OSPFLSDBLSID: /* 3 */ + return SNMP_IPADDRESS (lsah->id); + break; + case OSPFLSDBROUTERID: /* 4 */ + return SNMP_IPADDRESS (lsah->adv_router); + break; + case OSPFLSDBSEQUENCE: /* 5 */ + return SNMP_INTEGER (lsah->ls_seqnum); + break; + case OSPFLSDBAGE: /* 6 */ + return SNMP_INTEGER (lsah->ls_age); + break; + case OSPFLSDBCHECKSUM: /* 7 */ + return SNMP_INTEGER (lsah->checksum); + break; + case OSPFLSDBADVERTISEMENT: /* 8 */ + *var_len = ntohs (lsah->length); + return (u_char *) lsah; + break; + default: + return NULL; + break; + } + return NULL; +} + +struct ospf_area_range * +ospfAreaRangeLookup (struct variable *v, oid *name, size_t *length, + struct in_addr *area_id, struct in_addr *range_net, + int exact) +{ + oid *offset; + int offsetlen; + int len; + struct ospf_area *area; + struct ospf_area_range *range; + struct prefix_ipv4 p; + p.family = AF_INET; + p.prefixlen = IPV4_MAX_BITLEN; + + if (exact) + { + /* Area ID + Range Network. */ + if (v->namelen + IN_ADDR_SIZE + IN_ADDR_SIZE != *length) + return NULL; + + /* Set OID offset for Area ID. */ + offset = name + v->namelen; + + /* Lookup area first. */ + oid2in_addr (offset, IN_ADDR_SIZE, area_id); + + area = ospf_area_lookup_by_area_id (*area_id); + if (! area) + return NULL; + + offset += IN_ADDR_SIZE; + + /* Lookup area range. */ + oid2in_addr (offset, IN_ADDR_SIZE, range_net); + p.prefix = *range_net; + + return ospf_area_range_lookup (area, &p); + } + else + { + /* Set OID offset for Area ID. */ + offset = name + v->namelen; + offsetlen = *length - v->namelen; + + len = offsetlen; + if (len > IN_ADDR_SIZE) + len = IN_ADDR_SIZE; + + oid2in_addr (offset, len, area_id); + + /* First we search area. */ + if (len == IN_ADDR_SIZE) + area = ospf_area_lookup_by_area_id (*area_id); + else + area = ospf_area_lookup_next (area_id, len == 0 ? 1 : 0); + + if (area == NULL) + return NULL; + + do + { + offset += IN_ADDR_SIZE; + offsetlen -= IN_ADDR_SIZE; + len = offsetlen; + + if (len < 0) + len = 0; + if (len > IN_ADDR_SIZE) + len = IN_ADDR_SIZE; + + oid2in_addr (offset, len, range_net); + + range = ospf_area_range_lookup_next (area, range_net, + len == 0 ? 1 : 0); + + if (range) + { + /* Fill in length. */ + *length = v->namelen + IN_ADDR_SIZE + IN_ADDR_SIZE; + + /* Fill in value. */ + offset = name + v->namelen; + oid_copy_addr (offset, area_id, IN_ADDR_SIZE); + offset += IN_ADDR_SIZE; + oid_copy_addr (offset, range_net, IN_ADDR_SIZE); + + return range; + } + } + while ((area = ospf_area_lookup_next (area_id, 0)) != NULL); + } + return NULL; +} + +static u_char * +ospfAreaRangeEntry (struct variable *v, oid *name, size_t *length, int exact, + size_t *var_len, WriteMethod **write_method) +{ + struct ospf_area_range *range; + struct in_addr area_id; + struct in_addr range_net; + struct in_addr mask; + + /* Check OSPF instance. */ + if (! ospf_top) + return NULL; + + memset (&area_id, 0, IN_ADDR_SIZE); + memset (&range_net, 0, IN_ADDR_SIZE); + + range = ospfAreaRangeLookup (v, name, length, &area_id, &range_net, exact); + if (! range) + return NULL; + + /* Convert prefixlen to network mask format. */ + masklen2ip (range->subst_masklen, &mask); + + /* Return the current value of the variable */ + switch (v->magic) + { + case OSPFAREARANGEAREAID: /* 1 */ + return SNMP_IPADDRESS (area_id); + break; + case OSPFAREARANGENET: /* 2 */ + return SNMP_IPADDRESS (range_net); + break; + case OSPFAREARANGEMASK: /* 3 */ + return SNMP_IPADDRESS (mask); + break; + case OSPFAREARANGESTATUS: /* 4 */ + return SNMP_INTEGER (SNMP_VALID); + break; + case OSPFAREARANGEEFFECT: /* 5 */ +#define OSPF_advertiseMatching 1 +#define OSPF_doNotAdvertiseMatching 2 + return SNMP_INTEGER (OSPF_advertiseMatching); + break; + default: + return NULL; + break; + } + return NULL; +} + +struct ospf_nbr_nbma * +ospfHostLookup (struct variable *v, oid *name, size_t *length, + struct in_addr *addr, int exact) +{ + int len; + struct ospf_nbr_nbma *nbr_nbma; + + if (! ospf_top) + return NULL; + + if (exact) + { + /* INDEX { ospfHostIpAddress, ospfHostTOS } */ + if (*length != v->namelen + IN_ADDR_SIZE + 1) + return NULL; + + /* Check ospfHostTOS. */ + if (name[*length - 1] != 0) + return NULL; + + oid2in_addr (name + v->namelen, IN_ADDR_SIZE, addr); + + nbr_nbma = ospf_nbr_nbma_lookup (ospf_top, *addr); + + return nbr_nbma; + } + else + { + len = *length - v->namelen; + if (len > 4) + len = 4; + + oid2in_addr (name + v->namelen, len, addr); + + nbr_nbma = ospf_nbr_nbma_lookup_next (addr, len == 0 ? 1 : 0); + + if (nbr_nbma == NULL) + return NULL; + + oid_copy_addr (name + v->namelen, addr, IN_ADDR_SIZE); + + /* Set TOS 0. */ + name[v->namelen + IN_ADDR_SIZE] = 0; + + *length = v->namelen + IN_ADDR_SIZE + 1; + + return nbr_nbma; + } + return NULL; +} + +static u_char * +ospfHostEntry (struct variable *v, oid *name, size_t *length, int exact, + size_t *var_len, WriteMethod **write_method) +{ + struct ospf_nbr_nbma *nbr_nbma; + struct ospf_interface *oi; + struct in_addr addr; + + /* Check OSPF instance. */ + if (! ospf_top) + return NULL; + + memset (&addr, 0, sizeof (struct in_addr)); + + nbr_nbma = ospfHostLookup (v, name, length, &addr, exact); + if (nbr_nbma == NULL) + return NULL; + + oi = nbr_nbma->oi; + + /* Return the current value of the variable */ + switch (v->magic) + { + case OSPFHOSTIPADDRESS: /* 1 */ + return SNMP_IPADDRESS (nbr_nbma->addr); + break; + case OSPFHOSTTOS: /* 2 */ + return SNMP_INTEGER (0); + break; + case OSPFHOSTMETRIC: /* 3 */ + if (oi) + return SNMP_INTEGER (oi->output_cost); + else + return SNMP_INTEGER (1); + break; + case OSPFHOSTSTATUS: /* 4 */ + return SNMP_INTEGER (SNMP_VALID); + break; + case OSPFHOSTAREAID: /* 5 */ + if (oi && oi->area) + return SNMP_IPADDRESS (oi->area->area_id); + else + return SNMP_IPADDRESS (ospf_empty_addr); + break; + default: + return NULL; + break; + } + return NULL; +} + +struct list *ospf_snmp_iflist; + +struct ospf_snmp_if +{ + struct in_addr addr; + unsigned int ifindex; + struct interface *ifp; +}; + +struct ospf_snmp_if * +ospf_snmp_if_new () +{ + struct ospf_snmp_if *osif; + + osif = XMALLOC (0, sizeof (struct ospf_snmp_if)); + memset (osif, 0, sizeof (struct ospf_snmp_if)); + return osif; +} + +void +ospf_snmp_if_free (struct ospf_snmp_if *osif) +{ + XFREE (0, osif); +} + +void +ospf_snmp_if_delete (struct interface *ifp) +{ + struct listnode *nn; + struct ospf_snmp_if *osif; + + LIST_LOOP (ospf_snmp_iflist, osif, nn) + { + if (osif->ifp == ifp) + { + list_delete_node (ospf_snmp_iflist, nn); + ospf_snmp_if_free (osif); + return; + } + } +} + +void +ospf_snmp_if_update (struct interface *ifp) +{ + struct listnode *nn; + struct listnode *pn; + struct connected *ifc; + struct prefix *p; + struct ospf_snmp_if *osif; + struct in_addr *addr; + unsigned int ifindex; + + ospf_snmp_if_delete (ifp); + + p = NULL; + addr = NULL; + ifindex = 0; + + /* Lookup first IPv4 address entry. */ + LIST_LOOP (ifp->connected, ifc, nn) + { + if (if_is_pointopoint (ifp)) + p = ifc->destination; + else + p = ifc->address; + + if (p->family == AF_INET) + { + addr = &p->u.prefix4; + break; + } + } + if (! addr) + ifindex = ifp->ifindex; + + /* Add interface to the list. */ + pn = NULL; + LIST_LOOP (ospf_snmp_iflist, osif, nn) + { + if (addr) + { + if (ntohl (osif->addr.s_addr) > ntohl (addr->s_addr)) + break; + } + else + { + /* Unnumbered interface. */ + if (osif->addr.s_addr != 0 || osif->ifindex > ifindex) + break; + } + pn = nn; + } + + osif = ospf_snmp_if_new (); + if (addr) + osif->addr = *addr; + else + osif->ifindex = ifindex; + osif->ifp = ifp; + + listnode_add_after (ospf_snmp_iflist, pn, osif); +} + +struct interface * +ospf_snmp_if_lookup (struct in_addr *ifaddr, unsigned int *ifindex) +{ + struct listnode *nn; + struct ospf_snmp_if *osif; + + LIST_LOOP (ospf_snmp_iflist, osif, nn) + { + if (ifaddr->s_addr) + { + if (IPV4_ADDR_SAME (&osif->addr, ifaddr)) + return osif->ifp; + } + else + { + if (osif->ifindex == *ifindex) + return osif->ifp; + } + } + return NULL; +} + +struct interface * +ospf_snmp_if_lookup_next (struct in_addr *ifaddr, unsigned int *ifindex, + int ifaddr_next, int ifindex_next) +{ + struct ospf_snmp_if *osif; + struct listnode *nn; + + if (ifaddr_next) + { + nn = listhead (ospf_snmp_iflist); + if (nn) + { + osif = getdata (nn); + *ifaddr = osif->addr; + *ifindex = osif->ifindex; + return osif->ifp; + } + return NULL; + } + + LIST_LOOP (ospf_snmp_iflist, osif, nn) + { + if (ifaddr->s_addr) + { + if (ntohl (osif->addr.s_addr) > ntohl (ifaddr->s_addr)) + { + *ifaddr = osif->addr; + *ifindex = osif->ifindex; + return osif->ifp; + } + } + else + { + if (osif->ifindex > *ifindex || osif->addr.s_addr) + { + *ifaddr = osif->addr; + *ifindex = osif->ifindex; + return osif->ifp; + } + } + } + return NULL; +} + +int +ospf_snmp_iftype (struct interface *ifp) +{ +#define ospf_snmp_iftype_broadcast 1 +#define ospf_snmp_iftype_nbma 2 +#define ospf_snmp_iftype_pointToPoint 3 +#define ospf_snmp_iftype_pointToMultipoint 5 + if (if_is_broadcast (ifp)) + return ospf_snmp_iftype_broadcast; + if (if_is_pointopoint (ifp)) + return ospf_snmp_iftype_pointToPoint; + return ospf_snmp_iftype_broadcast; +} + +struct interface * +ospfIfLookup (struct variable *v, oid *name, size_t *length, + struct in_addr *ifaddr, unsigned int *ifindex, int exact) +{ + int len; + int ifaddr_next = 0; + int ifindex_next = 0; + struct interface *ifp; + oid *offset; + + if (exact) + { + if (*length != v->namelen + IN_ADDR_SIZE + 1) + return NULL; + + oid2in_addr (name + v->namelen, IN_ADDR_SIZE, ifaddr); + *ifindex = name[v->namelen + IN_ADDR_SIZE]; + + return ospf_snmp_if_lookup (ifaddr, ifindex); + } + else + { + len = *length - v->namelen; + if (len >= IN_ADDR_SIZE) + len = IN_ADDR_SIZE; + if (len <= 0) + ifaddr_next = 1; + + oid2in_addr (name + v->namelen, len, ifaddr); + + len = *length - v->namelen - IN_ADDR_SIZE; + if (len >= 1) + len = 1; + else + ifindex_next = 1; + + if (len == 1) + *ifindex = name[v->namelen + IN_ADDR_SIZE]; + + ifp = ospf_snmp_if_lookup_next (ifaddr, ifindex, ifaddr_next, + ifindex_next); + if (ifp) + { + *length = v->namelen + IN_ADDR_SIZE + 1; + offset = name + v->namelen; + oid_copy_addr (offset, ifaddr, IN_ADDR_SIZE); + offset += IN_ADDR_SIZE; + *offset = *ifindex; + return ifp; + } + } + return NULL; +} + +static u_char * +ospfIfEntry (struct variable *v, oid *name, size_t *length, int exact, + size_t *var_len, WriteMethod **write_method) +{ + struct interface *ifp; + unsigned int ifindex; + struct in_addr ifaddr; + struct ospf_interface *oi; + + ifindex = 0; + memset (&ifaddr, 0, sizeof (struct in_addr)); + + /* Check OSPF instance. */ + if (! ospf_top) + return NULL; + + ifp = ospfIfLookup (v, name, length, &ifaddr, &ifindex, exact); + if (ifp == NULL) + return NULL; + + oi = ospf_if_lookup_by_local_addr (ifp, ifaddr); + if (oi == NULL) + return NULL; + + /* Return the current value of the variable */ + switch (v->magic) + { + case OSPFIFIPADDRESS: /* 1 */ + return SNMP_IPADDRESS (ifaddr); + break; + case OSPFADDRESSLESSIF: /* 2 */ + return SNMP_INTEGER (ifindex); + break; + case OSPFIFAREAID: /* 3 */ + if (oi->area) + return SNMP_IPADDRESS (oi->area->area_id); + else + return SNMP_IPADDRESS (ospf_empty_addr); + break; + case OSPFIFTYPE: /* 4 */ + return SNMP_INTEGER (ospf_snmp_iftype (ifp)); + break; + case OSPFIFADMINSTAT: /* 5 */ + if (oi) + return SNMP_INTEGER (OSPF_STATUS_ENABLED); + else + return SNMP_INTEGER (OSPF_STATUS_DISABLED); + break; + case OSPFIFRTRPRIORITY: /* 6 */ + return SNMP_INTEGER (PRIORITY (oi)); + break; + case OSPFIFTRANSITDELAY: /* 7 */ + return SNMP_INTEGER (OSPF_IF_PARAM (oi, transmit_delay)); + break; + case OSPFIFRETRANSINTERVAL: /* 8 */ + return SNMP_INTEGER (OSPF_IF_PARAM (oi, retransmit_interval)); + break; + case OSPFIFHELLOINTERVAL: /* 9 */ + return SNMP_INTEGER (OSPF_IF_PARAM (oi, v_hello)); + break; + case OSPFIFRTRDEADINTERVAL: /* 10 */ + return SNMP_INTEGER (OSPF_IF_PARAM (oi, v_wait)); + break; + case OSPFIFPOLLINTERVAL: /* 11 */ + return SNMP_INTEGER (OSPF_POLL_INTERVAL_DEFAULT); + break; + case OSPFIFSTATE: /* 12 */ + return SNMP_INTEGER (oi->state); + break; + case OSPFIFDESIGNATEDROUTER: /* 13 */ + return SNMP_IPADDRESS (DR (oi)); + break; + case OSPFIFBACKUPDESIGNATEDROUTER: /* 14 */ + return SNMP_IPADDRESS (BDR (oi)); + break; + case OSPFIFEVENTS: /* 15 */ + return SNMP_INTEGER (oi->state_change); + break; + case OSPFIFAUTHKEY: /* 16 */ + *var_len = 0; + return (u_char *) OSPF_IF_PARAM (oi, auth_simple); + break; + case OSPFIFSTATUS: /* 17 */ + return SNMP_INTEGER (SNMP_VALID); + break; + case OSPFIFMULTICASTFORWARDING: /* 18 */ +#define ospf_snmp_multiforward_blocked 1 +#define ospf_snmp_multiforward_multicast 2 +#define ospf_snmp_multiforward_unicast 3 + return SNMP_INTEGER (ospf_snmp_multiforward_blocked); + break; + case OSPFIFDEMAND: /* 19 */ + return SNMP_INTEGER (SNMP_FALSE); + break; + case OSPFIFAUTHTYPE: /* 20 */ + if (oi->area) + return SNMP_INTEGER (oi->area->auth_type); + else + return SNMP_INTEGER (0); + break; + default: + return NULL; + break; + } + return NULL; +} + +#define OSPF_SNMP_METRIC_VALUE 1 + +struct interface * +ospfIfMetricLookup (struct variable *v, oid *name, size_t *length, + struct in_addr *ifaddr, unsigned int *ifindex, int exact) +{ + int len; + int ifaddr_next = 0; + int ifindex_next = 0; + struct interface *ifp; + oid *offset; + int metric; + + if (exact) + { + if (*length != v->namelen + IN_ADDR_SIZE + 1 + 1) + return NULL; + + oid2in_addr (name + v->namelen, IN_ADDR_SIZE, ifaddr); + *ifindex = name[v->namelen + IN_ADDR_SIZE]; + metric = name[v->namelen + IN_ADDR_SIZE + 1]; + + if (metric != OSPF_SNMP_METRIC_VALUE) + return NULL; + + return ospf_snmp_if_lookup (ifaddr, ifindex); + } + else + { + len = *length - v->namelen; + if (len >= IN_ADDR_SIZE) + len = IN_ADDR_SIZE; + else + ifaddr_next = 1; + + oid2in_addr (name + v->namelen, len, ifaddr); + + len = *length - v->namelen - IN_ADDR_SIZE; + if (len >= 1) + len = 1; + else + ifindex_next = 1; + + if (len == 1) + *ifindex = name[v->namelen + IN_ADDR_SIZE]; + + ifp = ospf_snmp_if_lookup_next (ifaddr, ifindex, ifaddr_next, + ifindex_next); + if (ifp) + { + *length = v->namelen + IN_ADDR_SIZE + 1 + 1; + offset = name + v->namelen; + oid_copy_addr (offset, ifaddr, IN_ADDR_SIZE); + offset += IN_ADDR_SIZE; + *offset = *ifindex; + offset++; + *offset = OSPF_SNMP_METRIC_VALUE; + return ifp; + } + } + return NULL; +} + +static u_char * +ospfIfMetricEntry (struct variable *v, oid *name, size_t *length, int exact, + size_t *var_len, WriteMethod **write_method) +{ + /* Currently we support metric 1 only. */ + struct interface *ifp; + unsigned int ifindex; + struct in_addr ifaddr; + struct ospf_interface *oi; + + ifindex = 0; + memset (&ifaddr, 0, sizeof (struct in_addr)); + + /* Check OSPF instance. */ + if (! ospf_top) + return NULL; + + ifp = ospfIfMetricLookup (v, name, length, &ifaddr, &ifindex, exact); + if (ifp == NULL) + return NULL; + + oi = ospf_if_lookup_by_local_addr (ifp, ifaddr); + if (oi == NULL) + return NULL; + + /* Return the current value of the variable */ + switch (v->magic) + { + case OSPFIFMETRICIPADDRESS: + return SNMP_IPADDRESS (ifaddr); + break; + case OSPFIFMETRICADDRESSLESSIF: + return SNMP_INTEGER (ifindex); + break; + case OSPFIFMETRICTOS: + return SNMP_INTEGER (0); + break; + case OSPFIFMETRICVALUE: + return SNMP_INTEGER (OSPF_SNMP_METRIC_VALUE); + break; + case OSPFIFMETRICSTATUS: + return SNMP_INTEGER (1); + break; + default: + return NULL; + break; + } + return NULL; +} + +struct route_table *ospf_snmp_vl_table; + +void +ospf_snmp_vl_add (struct ospf_vl_data *vl_data) +{ + struct prefix_ls lp; + struct route_node *rn; + + memset (&lp, 0, sizeof (struct prefix_ls)); + lp.family = 0; + lp.prefixlen = 64; + lp.id = vl_data->vl_area_id; + lp.adv_router = vl_data->vl_peer; + + rn = route_node_get (ospf_snmp_vl_table, (struct prefix *) &lp); + rn->info = vl_data; +} + +void +ospf_snmp_vl_delete (struct ospf_vl_data *vl_data) +{ + struct prefix_ls lp; + struct route_node *rn; + + memset (&lp, 0, sizeof (struct prefix_ls)); + lp.family = 0; + lp.prefixlen = 64; + lp.id = vl_data->vl_area_id; + lp.adv_router = vl_data->vl_peer; + + rn = route_node_lookup (ospf_snmp_vl_table, (struct prefix *) &lp); + if (! rn) + return; + rn->info = NULL; + route_unlock_node (rn); + route_unlock_node (rn); +} + +struct ospf_vl_data * +ospf_snmp_vl_lookup (struct in_addr *area_id, struct in_addr *neighbor) +{ + struct prefix_ls lp; + struct route_node *rn; + struct ospf_vl_data *vl_data; + + memset (&lp, 0, sizeof (struct prefix_ls)); + lp.family = 0; + lp.prefixlen = 64; + lp.id = *area_id; + lp.adv_router = *neighbor; + + rn = route_node_lookup (ospf_snmp_vl_table, (struct prefix *) &lp); + if (rn) + { + vl_data = rn->info; + route_unlock_node (rn); + return vl_data; + } + return NULL; +} + +struct ospf_vl_data * +ospf_snmp_vl_lookup_next (struct in_addr *area_id, struct in_addr *neighbor, + int first) +{ + struct prefix_ls lp; + struct route_node *rn; + struct ospf_vl_data *vl_data; + + memset (&lp, 0, sizeof (struct prefix_ls)); + lp.family = 0; + lp.prefixlen = 64; + lp.id = *area_id; + lp.adv_router = *neighbor; + + if (first) + rn = route_top (ospf_snmp_vl_table); + else + { + rn = route_node_get (ospf_snmp_vl_table, (struct prefix *) &lp); + rn = route_next (rn); + } + + for (; rn; rn = route_next (rn)) + if (rn->info) + break; + + if (rn && rn->info) + { + vl_data = rn->info; + *area_id = vl_data->vl_area_id; + *neighbor = vl_data->vl_peer; + route_unlock_node (rn); + return vl_data; + } + return NULL; +} + +struct ospf_vl_data * +ospfVirtIfLookup (struct variable *v, oid *name, size_t *length, + struct in_addr *area_id, struct in_addr *neighbor, int exact) +{ + int first; + int len; + struct ospf_vl_data *vl_data; + + if (exact) + { + if (*length != v->namelen + IN_ADDR_SIZE + IN_ADDR_SIZE) + return NULL; + + oid2in_addr (name + v->namelen, IN_ADDR_SIZE, area_id); + oid2in_addr (name + v->namelen + IN_ADDR_SIZE, IN_ADDR_SIZE, neighbor); + + return ospf_snmp_vl_lookup (area_id, neighbor); + } + else + { + first = 0; + + len = *length - v->namelen; + if (len <= 0) + first = 1; + if (len > IN_ADDR_SIZE) + len = IN_ADDR_SIZE; + oid2in_addr (name + v->namelen, len, area_id); + + len = *length - v->namelen - IN_ADDR_SIZE; + if (len > IN_ADDR_SIZE) + len = IN_ADDR_SIZE; + oid2in_addr (name + v->namelen + IN_ADDR_SIZE, len, neighbor); + + vl_data = ospf_snmp_vl_lookup_next (area_id, neighbor, first); + + if (vl_data) + { + *length = v->namelen + IN_ADDR_SIZE + IN_ADDR_SIZE; + oid_copy_addr (name + v->namelen, area_id, IN_ADDR_SIZE); + oid_copy_addr (name + v->namelen + IN_ADDR_SIZE, neighbor, + IN_ADDR_SIZE); + return vl_data; + } + } + return NULL; +} + +static u_char * +ospfVirtIfEntry (struct variable *v, oid *name, size_t *length, int exact, + size_t *var_len, WriteMethod **write_method) +{ + struct ospf_vl_data *vl_data; + struct ospf_interface *oi; + struct in_addr area_id; + struct in_addr neighbor; + + memset (&area_id, 0, sizeof (struct in_addr)); + memset (&neighbor, 0, sizeof (struct in_addr)); + + vl_data = ospfVirtIfLookup (v, name, length, &area_id, &neighbor, exact); + if (! vl_data) + return NULL; + oi = vl_data->vl_oi; + if (! oi) + return NULL; + + /* Return the current value of the variable */ + switch (v->magic) + { + case OSPFVIRTIFAREAID: + return SNMP_IPADDRESS (area_id); + break; + case OSPFVIRTIFNEIGHBOR: + return SNMP_IPADDRESS (neighbor); + break; + case OSPFVIRTIFTRANSITDELAY: + return SNMP_INTEGER (OSPF_IF_PARAM (oi, transmit_delay)); + break; + case OSPFVIRTIFRETRANSINTERVAL: + return SNMP_INTEGER (OSPF_IF_PARAM (oi, retransmit_interval)); + break; + case OSPFVIRTIFHELLOINTERVAL: + return SNMP_INTEGER (OSPF_IF_PARAM (oi, v_hello)); + break; + case OSPFVIRTIFRTRDEADINTERVAL: + return SNMP_INTEGER (OSPF_IF_PARAM (oi, v_wait)); + break; + case OSPFVIRTIFSTATE: + return SNMP_INTEGER (oi->state); + break; + case OSPFVIRTIFEVENTS: + return SNMP_INTEGER (oi->state_change); + break; + case OSPFVIRTIFAUTHKEY: + *var_len = 0; + return (u_char *) OSPF_IF_PARAM (oi, auth_simple); + break; + case OSPFVIRTIFSTATUS: + return SNMP_INTEGER (SNMP_VALID); + break; + case OSPFVIRTIFAUTHTYPE: + if (oi->area) + return SNMP_INTEGER (oi->area->auth_type); + else + return SNMP_INTEGER (0); + break; + default: + return NULL; + break; + } + return NULL; +} + +struct ospf_neighbor * +ospf_snmp_nbr_lookup (struct in_addr *nbr_addr, unsigned int *ifindex) +{ + struct listnode *nn; + struct ospf_interface *oi; + struct ospf_neighbor *nbr; + struct route_node *rn; + + LIST_LOOP (ospf_top->oiflist, oi, nn) + { + for (rn = route_top (oi->nbrs); rn; rn = route_next (rn)) + if ((nbr = rn->info) != NULL + && nbr != oi->nbr_self + && nbr->state != NSM_Down + && nbr->src.s_addr != 0) + { + if (IPV4_ADDR_SAME (&nbr->src, nbr_addr)) + { + route_unlock_node (rn); + return nbr; + } + } + } + return NULL; +} + +struct ospf_neighbor * +ospf_snmp_nbr_lookup_next (struct in_addr *nbr_addr, unsigned int *ifindex, + int first) +{ + struct listnode *nn; + struct ospf_interface *oi; + struct ospf_neighbor *nbr; + struct route_node *rn; + struct ospf_neighbor *min = NULL; + + LIST_LOOP (ospf_top->oiflist, oi, nn) + { + for (rn = route_top (oi->nbrs); rn; rn = route_next (rn)) + if ((nbr = rn->info) != NULL + && nbr != oi->nbr_self + && nbr->state != NSM_Down + && nbr->src.s_addr != 0) + { + if (first) + { + if (! min) + min = nbr; + else if (ntohl (nbr->src.s_addr) < ntohl (min->src.s_addr)) + min = nbr; + } + else if (ntohl (nbr->src.s_addr) > ntohl (nbr_addr->s_addr)) + { + if (! min) + min = nbr; + else if (ntohl (nbr->src.s_addr) < ntohl (min->src.s_addr)) + min = nbr; + } + } + } + if (min) + { + *nbr_addr = min->src; + *ifindex = 0; + return min; + } + return NULL; +} + +struct ospf_neighbor * +ospfNbrLookup (struct variable *v, oid *name, size_t *length, + struct in_addr *nbr_addr, unsigned int *ifindex, int exact) +{ + int len; + int first; + struct ospf_neighbor *nbr; + + if (exact) + { + if (*length != v->namelen + IN_ADDR_SIZE + 1) + return NULL; + + oid2in_addr (name + v->namelen, IN_ADDR_SIZE, nbr_addr); + *ifindex = name[v->namelen + IN_ADDR_SIZE]; + + return ospf_snmp_nbr_lookup (nbr_addr, ifindex); + } + else + { + first = 0; + len = *length - v->namelen; + + if (len <= 0) + first = 1; + + if (len > IN_ADDR_SIZE) + len = IN_ADDR_SIZE; + + oid2in_addr (name + v->namelen, len, nbr_addr); + + len = *length - v->namelen - IN_ADDR_SIZE; + if (len >= 1) + *ifindex = name[v->namelen + IN_ADDR_SIZE]; + + nbr = ospf_snmp_nbr_lookup_next (nbr_addr, ifindex, first); + + if (nbr) + { + *length = v->namelen + IN_ADDR_SIZE + 1; + oid_copy_addr (name + v->namelen, nbr_addr, IN_ADDR_SIZE); + name[v->namelen + IN_ADDR_SIZE] = *ifindex; + return nbr; + } + } + return NULL; +} + +static u_char * +ospfNbrEntry (struct variable *v, oid *name, size_t *length, int exact, + size_t *var_len, WriteMethod **write_method) +{ + struct in_addr nbr_addr; + unsigned int ifindex; + struct ospf_neighbor *nbr; + struct ospf_interface *oi; + + memset (&nbr_addr, 0, sizeof (struct in_addr)); + ifindex = 0; + + nbr = ospfNbrLookup (v, name, length, &nbr_addr, &ifindex, exact); + if (! nbr) + return NULL; + oi = nbr->oi; + if (! oi) + return NULL; + + /* Return the current value of the variable */ + switch (v->magic) + { + case OSPFNBRIPADDR: + return SNMP_IPADDRESS (nbr_addr); + break; + case OSPFNBRADDRESSLESSINDEX: + return SNMP_INTEGER (ifindex); + break; + case OSPFNBRRTRID: + return SNMP_IPADDRESS (nbr->router_id); + break; + case OSPFNBROPTIONS: + return SNMP_INTEGER (oi->nbr_self->options); + break; + case OSPFNBRPRIORITY: + return SNMP_INTEGER (nbr->priority); + break; + case OSPFNBRSTATE: + return SNMP_INTEGER (nbr->state); + break; + case OSPFNBREVENTS: + return SNMP_INTEGER (nbr->state_change); + break; + case OSPFNBRLSRETRANSQLEN: + return SNMP_INTEGER (ospf_ls_retransmit_count (nbr)); + break; + case OSPFNBMANBRSTATUS: + return SNMP_INTEGER (SNMP_VALID); + break; + case OSPFNBMANBRPERMANENCE: + return SNMP_INTEGER (2); + break; + case OSPFNBRHELLOSUPPRESSED: + return SNMP_INTEGER (SNMP_FALSE); + break; + default: + return NULL; + break; + } + return NULL; +} + +static u_char * +ospfVirtNbrEntry (struct variable *v, oid *name, size_t *length, int exact, + size_t *var_len, WriteMethod **write_method) +{ + struct ospf_vl_data *vl_data; + struct in_addr area_id; + struct in_addr neighbor; + + memset (&area_id, 0, sizeof (struct in_addr)); + memset (&neighbor, 0, sizeof (struct in_addr)); + + /* Check OSPF instance. */ + if (! ospf_top) + return NULL; + + vl_data = ospfVirtIfLookup (v, name, length, &area_id, &neighbor, exact); + if (! vl_data) + return NULL; + + /* Return the current value of the variable */ + switch (v->magic) + { + case OSPFVIRTNBRAREA: + return (u_char *) NULL; + break; + case OSPFVIRTNBRRTRID: + return (u_char *) NULL; + break; + case OSPFVIRTNBRIPADDR: + return (u_char *) NULL; + break; + case OSPFVIRTNBROPTIONS: + return (u_char *) NULL; + break; + case OSPFVIRTNBRSTATE: + return (u_char *) NULL; + break; + case OSPFVIRTNBREVENTS: + return (u_char *) NULL; + break; + case OSPFVIRTNBRLSRETRANSQLEN: + return (u_char *) NULL; + break; + case OSPFVIRTNBRHELLOSUPPRESSED: + return (u_char *) NULL; + break; + default: + return NULL; + break; + } + return NULL; +} + +struct ospf_lsa * +ospfExtLsdbLookup (struct variable *v, oid *name, size_t *length, u_char *type, + struct in_addr *ls_id, struct in_addr *router_id, int exact) +{ + int first; + oid *offset; + int offsetlen; + u_char lsa_type; + int len; + struct ospf_lsa *lsa; + + if (exact) + { + if (*length != v->namelen + 1 + IN_ADDR_SIZE + IN_ADDR_SIZE) + return NULL; + + offset = name + v->namelen; + + /* Make it sure given value match to type. */ + lsa_type = *offset; + offset++; + + if (lsa_type != *type) + return NULL; + + /* LS ID. */ + oid2in_addr (offset, IN_ADDR_SIZE, ls_id); + offset += IN_ADDR_SIZE; + + /* Router ID. */ + oid2in_addr (offset, IN_ADDR_SIZE, router_id); + + return ospf_lsdb_lookup_by_id (ospf_top->lsdb, *type, *ls_id, *router_id); + } + else + { + /* Get variable length. */ + first = 0; + offset = name + v->namelen; + offsetlen = *length - v->namelen; + + /* LSA type value. */ + lsa_type = *offset; + offset++; + offsetlen--; + + if (offsetlen <= 0 || lsa_type < OSPF_AS_EXTERNAL_LSA) + first = 1; + + /* LS ID. */ + len = offsetlen; + if (len > IN_ADDR_SIZE) + len = IN_ADDR_SIZE; + + oid2in_addr (offset, len, ls_id); + + offset += IN_ADDR_SIZE; + offsetlen -= IN_ADDR_SIZE; + + /* Router ID. */ + len = offsetlen; + if (len > IN_ADDR_SIZE) + len = IN_ADDR_SIZE; + + oid2in_addr (offset, len, router_id); + + lsa = ospf_lsdb_lookup_by_id_next (ospf_top->lsdb, *type, *ls_id, + *router_id, first); + + if (lsa) + { + /* Fill in length. */ + *length = v->namelen + 1 + IN_ADDR_SIZE + IN_ADDR_SIZE; + + /* Fill in value. */ + offset = name + v->namelen; + + *offset = OSPF_AS_EXTERNAL_LSA; + offset++; + oid_copy_addr (offset, &lsa->data->id, IN_ADDR_SIZE); + offset += IN_ADDR_SIZE; + oid_copy_addr (offset, &lsa->data->adv_router, IN_ADDR_SIZE); + + return lsa; + } + } + return NULL; +} + +static u_char * +ospfExtLsdbEntry (struct variable *v, oid *name, size_t *length, int exact, + size_t *var_len, WriteMethod **write_method) +{ + struct ospf_lsa *lsa; + struct lsa_header *lsah; + u_char type; + struct in_addr ls_id; + struct in_addr router_id; + + type = OSPF_AS_EXTERNAL_LSA; + memset (&ls_id, 0, sizeof (struct in_addr)); + memset (&router_id, 0, sizeof (struct in_addr)); + + /* Check OSPF instance. */ + if (! ospf_top) + return NULL; + + lsa = ospfExtLsdbLookup (v, name, length, &type, &ls_id, &router_id, exact); + if (! lsa) + return NULL; + + lsah = lsa->data; + + /* Return the current value of the variable */ + switch (v->magic) + { + case OSPFEXTLSDBTYPE: + return SNMP_INTEGER (OSPF_AS_EXTERNAL_LSA); + break; + case OSPFEXTLSDBLSID: + return SNMP_IPADDRESS (lsah->id); + break; + case OSPFEXTLSDBROUTERID: + return SNMP_IPADDRESS (lsah->adv_router); + break; + case OSPFEXTLSDBSEQUENCE: + return SNMP_INTEGER (lsah->ls_seqnum); + break; + case OSPFEXTLSDBAGE: + return SNMP_INTEGER (lsah->ls_age); + break; + case OSPFEXTLSDBCHECKSUM: + return SNMP_INTEGER (lsah->checksum); + break; + case OSPFEXTLSDBADVERTISEMENT: + *var_len = ntohs (lsah->length); + return (u_char *) lsah; + break; + default: + return NULL; + break; + } + return NULL; +} + +static u_char * +ospfAreaAggregateEntry (struct variable *v, oid *name, size_t *length, + int exact, size_t *var_len, WriteMethod **write_method) +{ + /* Return the current value of the variable */ + switch (v->magic) + { + case OSPFAREAAGGREGATEAREAID: + return (u_char *) NULL; + break; + case OSPFAREAAGGREGATELSDBTYPE: + return (u_char *) NULL; + break; + case OSPFAREAAGGREGATENET: + return (u_char *) NULL; + break; + case OSPFAREAAGGREGATEMASK: + return (u_char *) NULL; + break; + case OSPFAREAAGGREGATESTATUS: + return (u_char *) NULL; + break; + case OSPFAREAAGGREGATEEFFECT: + return (u_char *) NULL; + break; + default: + return NULL; + break; + } + return NULL; +} + +/* Register OSPF2-MIB. */ +void +ospf_snmp_init () +{ + ospf_snmp_iflist = list_new (); + ospf_snmp_vl_table = route_table_init (); + smux_init (ospfd_oid, sizeof (ospfd_oid) / sizeof (oid)); + REGISTER_MIB("mibII/ospf", ospf_variables, variable, ospf_oid); + smux_start (); +} +#endif /* HAVE_SNMP */ |