Merge svn revisions 1065 and 1066 from Zebra CVS.
diff --git a/ospf6d/ospf6_snmp.c b/ospf6d/ospf6_snmp.c
new file mode 100644
index 0000000..186c8e2
--- /dev/null
+++ b/ospf6d/ospf6_snmp.c
@@ -0,0 +1,304 @@
+/* OSPFv3 SNMP support
+ * Copyright (C) 2004 Yasuhiro Ohara
+ *
+ * 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
+
+#ifdef HAVE_NETSNMP
+#include <net-snmp/net-snmp-config.h>
+#endif /*HAVE_NETSNMP*/
+
+#include <asn1.h>
+#include <snmp.h>
+#include <snmp_impl.h>
+
+#include "log.h"
+#include "vty.h"
+#include "linklist.h"
+#include "smux.h"
+
+#include "ospf6_proto.h"
+#include "ospf6_lsa.h"
+#include "ospf6_lsdb.h"
+#include "ospf6_route.h"
+#include "ospf6_top.h"
+#include "ospf6_area.h"
+#include "ospf6_interface.h"
+#include "ospf6_message.h"
+#include "ospf6_neighbor.h"
+#include "ospf6d.h"
+
+/* OSPFv3-MIB */
+#define OSPFv3MIB 1,3,6,1,3,102
+
+/* Zebra enterprise ospf6d MIB */
+#define OSPF6DOID 1,3,6,1,4,1,3317,1,2,6
+
+/* OSPFv3 MIB General Group values. */
+#define OSPFv3ROUTERID 1
+#define OSPFv3ADMINSTAT 2
+#define OSPFv3VERSIONNUMBER 3
+#define OSPFv3AREABDRRTRSTATUS 4
+#define OSPFv3ASBDRRTRSTATUS 5
+#define OSPFv3ASSCOPELSACOUNT 6
+#define OSPFv3ASSCOPELSACHECKSUMSUM 7
+#define OSPFv3ORIGINATENEWLSAS 8
+#define OSPFv3RXNEWLSAS 9
+#define OSPFv3EXTLSACOUNT 10
+#define OSPFv3EXTAREALSDBLIMIT 11
+#define OSPFv3MULTICASTEXTENSIONS 12
+#define OSPFv3EXITOVERFLOWINTERVAL 13
+#define OSPFv3DEMANDEXTENSIONS 14
+#define OSPFv3TRAFFICENGINEERINGSUPPORT 15
+#define OSPFv3REFERENCEBANDWIDTH 16
+#define OSPFv3RESTARTSUPPORT 17
+#define OSPFv3RESTARTINTERVAL 18
+#define OSPFv3RESTARTSTATUS 19
+#define OSPFv3RESTARTAGE 20
+#define OSPFv3RESTARTEXITREASON 21
+
+/* OSPFv3 MIB Area Table values. */
+#define OSPFv3AREAID 1
+#define OSPFv3IMPORTASEXTERN 2
+
+/* 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
+
+/* For return values e.g. SNMP_INTEGER macro */
+SNMP_LOCAL_VARIABLES
+
+static struct in_addr tmp;
+#define INT32_INADDR(x) \
+ (tmp.s_addr = (x), tmp)
+
+/* OSPFv3-MIB instances. */
+oid ospfv3_oid [] = { OSPFv3MIB };
+oid ospf6d_oid [] = { OSPF6DOID };
+
+/* empty ID 0.0.0.0 e.g. empty router-id */
+static struct in_addr ospf6_empty_id = {0};
+
+/* Hook functions. */
+static u_char *ospfv3GeneralGroup ();
+static u_char *ospfv3AreaEntry ();
+
+struct variable ospfv3_variables[] =
+{
+ /* OSPF general variables */
+ {OSPFv3ROUTERID, IPADDRESS, RWRITE, ospfv3GeneralGroup,
+ 3, {1, 1, 1}},
+ {OSPFv3ADMINSTAT, INTEGER, RWRITE, ospfv3GeneralGroup,
+ 3, {1, 1, 2}},
+ {OSPFv3VERSIONNUMBER, INTEGER, RONLY, ospfv3GeneralGroup,
+ 3, {1, 1, 3}},
+ {OSPFv3AREABDRRTRSTATUS, INTEGER, RONLY, ospfv3GeneralGroup,
+ 3, {1, 1, 4}},
+ {OSPFv3ASBDRRTRSTATUS, INTEGER, RWRITE, ospfv3GeneralGroup,
+ 3, {1, 1, 5}},
+ {OSPFv3ASSCOPELSACOUNT, GAUGE, RONLY, ospfv3GeneralGroup,
+ 3, {1, 1, 6}},
+ {OSPFv3ASSCOPELSACHECKSUMSUM, INTEGER, RONLY, ospfv3GeneralGroup,
+ 3, {1, 1, 7}},
+ {OSPFv3ORIGINATENEWLSAS, COUNTER, RONLY, ospfv3GeneralGroup,
+ 3, {1, 1, 8}},
+ {OSPFv3RXNEWLSAS, COUNTER, RONLY, ospfv3GeneralGroup,
+ 3, {1, 1, 9}},
+ {OSPFv3EXTLSACOUNT, GAUGE, RONLY, ospfv3GeneralGroup,
+ 3, {1, 1, 10}},
+ {OSPFv3EXTAREALSDBLIMIT, INTEGER, RWRITE, ospfv3GeneralGroup,
+ 3, {1, 1, 11}},
+ {OSPFv3MULTICASTEXTENSIONS, INTEGER, RWRITE, ospfv3GeneralGroup,
+ 3, {1, 1, 12}},
+ {OSPFv3EXITOVERFLOWINTERVAL, INTEGER, RWRITE, ospfv3GeneralGroup,
+ 3, {1, 1, 13}},
+ {OSPFv3DEMANDEXTENSIONS, INTEGER, RWRITE, ospfv3GeneralGroup,
+ 3, {1, 1, 14}},
+ {OSPFv3TRAFFICENGINEERINGSUPPORT, INTEGER, RWRITE, ospfv3GeneralGroup,
+ 3, {1, 1, 15}},
+ {OSPFv3REFERENCEBANDWIDTH, INTEGER, RWRITE, ospfv3GeneralGroup,
+ 3, {1, 1, 16}},
+ {OSPFv3RESTARTSUPPORT, INTEGER, RWRITE, ospfv3GeneralGroup,
+ 3, {1, 1, 17}},
+ {OSPFv3RESTARTINTERVAL, INTEGER, RWRITE, ospfv3GeneralGroup,
+ 3, {1, 1, 18}},
+ {OSPFv3RESTARTSTATUS, INTEGER, RONLY, ospfv3GeneralGroup,
+ 3, {1, 1, 19}},
+ {OSPFv3RESTARTAGE, INTEGER, RONLY, ospfv3GeneralGroup,
+ 3, {1, 1, 20}},
+ {OSPFv3RESTARTEXITREASON, INTEGER, RONLY, ospfv3GeneralGroup,
+ 3, {1, 1, 21}},
+
+ /* OSPFv3 Area Data Structure */
+ {OSPFv3AREAID, IPADDRESS, RONLY, ospfv3AreaEntry,
+ 4, {1, 2, 1, 1}},
+ {OSPFv3IMPORTASEXTERN, INTEGER, RONLY, ospfv3AreaEntry,
+ 4, {1, 2, 1, 2}},
+};
+
+static u_char *
+ospfv3GeneralGroup (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 OSPFv3ROUTERID: /* 1*/
+ /* Router-ID of this OSPF instance. */
+ if (ospf6)
+ return SNMP_IPADDRESS (INT32_INADDR (ospf6->router_id));
+ else
+ return SNMP_IPADDRESS (ospf6_empty_id);
+ break;
+ case OSPFv3ADMINSTAT: /* 2*/
+ break;
+ case OSPFv3VERSIONNUMBER: /* 3*/
+ break;
+ case OSPFv3AREABDRRTRSTATUS: /* 4*/
+ break;
+ case OSPFv3ASBDRRTRSTATUS: /* 5*/
+ break;
+ case OSPFv3ASSCOPELSACOUNT: /* 6*/
+ break;
+ case OSPFv3ASSCOPELSACHECKSUMSUM: /* 7*/
+ break;
+ case OSPFv3ORIGINATENEWLSAS: /* 8*/
+ break;
+ case OSPFv3RXNEWLSAS: /* 9*/
+ break;
+ case OSPFv3EXTLSACOUNT: /*10*/
+ break;
+ case OSPFv3EXTAREALSDBLIMIT: /*11*/
+ break;
+ case OSPFv3MULTICASTEXTENSIONS: /*12*/
+ break;
+ case OSPFv3EXITOVERFLOWINTERVAL: /*13*/
+ break;
+ case OSPFv3DEMANDEXTENSIONS: /*14*/
+ break;
+ case OSPFv3TRAFFICENGINEERINGSUPPORT: /*15*/
+ break;
+ case OSPFv3REFERENCEBANDWIDTH: /*16*/
+ break;
+ case OSPFv3RESTARTSUPPORT: /*17*/
+ break;
+ case OSPFv3RESTARTINTERVAL: /*18*/
+ break;
+ case OSPFv3RESTARTSTATUS: /*19*/
+ break;
+ case OSPFv3RESTARTAGE: /*20*/
+ break;
+ case OSPFv3RESTARTEXITREASON: /*21*/
+ break;
+ default:
+ return NULL;
+ }
+ return NULL;
+}
+
+static u_char *
+ospfv3AreaEntry (struct variable *v, oid *name, size_t *length,
+ int exact, size_t *var_len, WriteMethod **write_method)
+{
+ struct ospf6_area *oa, *area = NULL;
+ u_int32_t area_id = 0;
+ listnode node;
+ int len;
+
+ if (ospf6 == NULL)
+ return NULL;
+
+ len = *length - v->namelen;
+ len = (len >= sizeof (u_int32_t) ? sizeof (u_int32_t) : 0);
+ if (exact && len != sizeof (u_int32_t))
+ return NULL;
+ if (len)
+ oid2in_addr (name + v->namelen, len, (struct in_addr *) &area_id);
+
+ zlog_info ("SNMP access by area: %s, exact=%d len=%d length=%d",
+ inet_ntoa (* (struct in_addr *) &area_id),
+ exact, len, *length);
+
+ for (node = listhead (ospf6->area_list); node; nextnode (node))
+ {
+ oa = (struct ospf6_area *) getdata (node);
+ if (area == NULL)
+ {
+ if (len == 0) /* return first area entry */
+ area = oa;
+ else if (exact && ntohl (oa->area_id) == ntohl (area_id))
+ area = oa;
+ else if (ntohl (oa->area_id) > ntohl (area_id))
+ area = oa;
+ }
+ }
+
+ if (area == NULL)
+ return NULL;
+
+ *length = v->namelen + sizeof (u_int32_t);
+ oid_copy_addr (name + v->namelen, (struct in_addr *) &area->area_id,
+ sizeof (u_int32_t));
+
+ zlog_info ("SNMP found area: %s, exact=%d len=%d length=%d",
+ inet_ntoa (* (struct in_addr *) &area->area_id),
+ exact, len, *length);
+
+ switch (v->magic)
+ {
+ case OSPFv3AREAID: /* 1*/
+ return SNMP_IPADDRESS (INT32_INADDR (area->area_id));
+ break;
+ case OSPFv3IMPORTASEXTERN: /* 2*/
+ return SNMP_INTEGER (ospf6->external_table->count);
+ break;
+ default:
+ return NULL;
+ break;
+ }
+ return NULL;
+}
+
+/* Register OSPFv3-MIB. */
+void
+ospf6_snmp_init ()
+{
+ smux_init (ospf6d_oid, sizeof (ospf6d_oid) / sizeof (oid));
+ REGISTER_MIB ("OSPFv3MIB", ospfv3_variables, variable, ospfv3_oid);
+ smux_start ();
+}
+
+#endif /* HAVE_SNMP */
+