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+/* SNMP support
+ * Copyright (C) 1999 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 this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _ZEBRA_SNMP_H
+#define _ZEBRA_SNMP_H
+
+#include <net-snmp/agent/net-snmp-agent-includes.h>
+#include <net-snmp/agent/snmp_vars.h>
+
+#include "thread.h"
+#include "hook.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Structures here are mostly compatible with UCD SNMP 4.1.1 */
+#define MATCH_FAILED (-1)
+#define MATCH_SUCCEEDED 0
+
+/* SYNTAX TruthValue from SNMPv2-TC. */
+#define SNMP_TRUE 1
+#define SNMP_FALSE 2
+
+/* SYNTAX RowStatus from SNMPv2-TC. */
+#define SNMP_VALID 1
+#define SNMP_INVALID 2
+
+#define IN_ADDR_SIZE sizeof(struct in_addr)
+
+/* IANAipRouteProtocol */
+#define IANAIPROUTEPROTOCOLOTHER 1
+#define IANAIPROUTEPROTOCOLLOCAL 2
+#define IANAIPROUTEPROTOCOLNETMGMT 3
+#define IANAIPROUTEPROTOCOLICMP 4
+#define IANAIPROUTEPROTOCOLEGP 5
+#define IANAIPROUTEPROTOCOLGGP 6
+#define IANAIPROUTEPROTOCOLHELLO 7
+#define IANAIPROUTEPROTOCOLRIP 8
+#define IANAIPROUTEPROTOCOLISIS 9
+#define IANAIPROUTEPROTOCOLESIS 10
+#define IANAIPROUTEPROTOCOLCISCOIGRP 11
+#define IANAIPROUTEPROTOCOLBBNSPFIGP 12
+#define IANAIPROUTEPROTOCOLOSPF 13
+#define IANAIPROUTEPROTOCOLBGP 14
+#define IANAIPROUTEPROTOCOLIDPR 15
+#define IANAIPROUTEPROTOCOLCISCOEIGRP 16
+#define IANAIPROUTEPROTOCOLDVMRP 17
+
+#define INETADDRESSTYPEUNKNOWN 0
+#define INETADDRESSTYPEIPV4 1
+#define INETADDRESSTYPEIPV6 2
+
+#undef REGISTER_MIB
+#define REGISTER_MIB(descr, var, vartype, theoid) \
+ smux_register_mib(descr, (struct variable *)var, \
+ sizeof(struct vartype), \
+ sizeof(var) / sizeof(struct vartype), theoid, \
+ sizeof(theoid) / sizeof(oid))
+
+struct trap_object {
+ int namelen; /* Negative if the object is not indexed */
+ oid name[MAX_OID_LEN];
+};
+
+struct index_oid {
+ int indexlen;
+ oid indexname[MAX_OID_LEN];
+};
+/* Declare SMUX return value. */
+#define SNMP_LOCAL_VARIABLES \
+ static long snmp_int_val __attribute__((unused)); \
+ static struct in_addr snmp_in_addr_val __attribute__((unused));
+ static uint8_t snmp_octet_val __attribute__((unused));
+#define SNMP_INTEGER(V) \
+ (*var_len = sizeof(snmp_int_val), snmp_int_val = V, \
+ (uint8_t *)&snmp_int_val)
+
+#define SNMP_OCTET(V) \
+ (*var_len = sizeof(snmp_octet_val), snmp_octet_val = V, \
+ (uint8_t *)&snmp_octet_val)
+
+#define SNMP_IPADDRESS(V) \
+ (*var_len = sizeof(struct in_addr), snmp_in_addr_val = V, \
+ (uint8_t *)&snmp_in_addr_val)
+
+#define SNMP_IP6ADDRESS(V) (*var_len = sizeof(struct in6_addr), (uint8_t *)&V)
+
+extern int smux_enabled(void);
+
+extern void smux_init(struct thread_master *tm);
+extern void smux_agentx_enable(void);
+extern void smux_register_mib(const char *, struct variable *, size_t, int,
+ oid[], size_t);
+extern int smux_header_generic(struct variable *, oid[], size_t *, int,
+ size_t *, WriteMethod **);
+extern int smux_header_table(struct variable *, oid *, size_t *, int, size_t *,
+ WriteMethod **);
+
+/* For traps, three OID are provided:
+
+ 1. The enterprise OID to use (the last argument will be appended to
+ it to form the SNMP trap OID)
+
+ 2. The base OID for objects to be sent in traps.
+
+ 3. The index OID for objects to be sent in traps. This index is used
+ to designate a particular instance of a column.
+
+ The provided trap object contains the bindings to be sent with the
+ trap. The base OID will be prefixed to the provided OID and, if the
+ length is positive, the requested OID is assumed to be a columnar
+ object and the index OID will be appended.
+
+ The two first arguments are the MIB registry used to locate the trap
+ objects.
+
+ The use of the arguments may differ depending on the implementation
+ used.
+*/
+extern void smux_trap(struct variable *, size_t, const oid *, size_t,
+ const oid *, size_t, const oid *, size_t,
+ const struct trap_object *, size_t, uint8_t);
+
+extern int smux_trap_multi_index(struct variable *vp, size_t vp_len,
+ const oid *ename, size_t enamelen,
+ const oid *name, size_t namelen,
+ struct index_oid *iname, size_t index_len,
+ const struct trap_object *trapobj,
+ size_t trapobjlen, uint8_t sptrap);
+
+extern void smux_events_update(void);
+extern int oid_compare(const oid *, int, const oid *, int);
+extern void oid2in_addr(oid[], int, struct in_addr *);
+extern void oid2in6_addr(oid oid[], struct in6_addr *addr);
+extern void oid2int(oid oid[], int *dest);
+extern void *oid_copy(void *, const void *, size_t);
+extern void oid_copy_in_addr(oid[], const struct in_addr *);
+extern void oid_copy_in6_addr(oid[], const struct in6_addr *);
+extern void oid_copy_int(oid oid[], int *val);
+extern void oid2string(oid oid[], int len, char *string);
+extern void oid_copy_str(oid oid[], const char *string, int len);
+
+DECLARE_HOOK(agentx_enabled, (), ());
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _ZEBRA_SNMP_H */