smux.h
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上传日期:2009-11-15
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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 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.
- */
- #ifndef _ZEBRA_SNMP_H
- #define _ZEBRA_SNMP_H
- #define SMUX_PORT_DEFAULT 199
- #define SMUXMAXPKTSIZE 1500
- #define SMUXMAXSTRLEN 256
- #define SMUX_OPEN (ASN_APPLICATION | ASN_CONSTRUCTOR | 0)
- #define SMUX_CLOSE (ASN_APPLICATION | ASN_PRIMITIVE | 1)
- #define SMUX_RREQ (ASN_APPLICATION | ASN_CONSTRUCTOR | 2)
- #define SMUX_RRSP (ASN_APPLICATION | ASN_PRIMITIVE | 3)
- #define SMUX_SOUT (ASN_APPLICATION | ASN_PRIMITIVE | 4)
- #define SMUX_GET (ASN_CONTEXT | ASN_CONSTRUCTOR | 0)
- #define SMUX_GETNEXT (ASN_CONTEXT | ASN_CONSTRUCTOR | 1)
- #define SMUX_GETRSP (ASN_CONTEXT | ASN_CONSTRUCTOR | 2)
- #define SMUX_SET (ASN_CONTEXT | ASN_CONSTRUCTOR | 3)
- #define SMUX_TRAP (ASN_CONTEXT | ASN_CONSTRUCTOR | 4)
- #define SMUX_MAX_FAILURE 3
- /* 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)
- struct variable;
- #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))
- typedef int (WriteMethod)(int action,
- u_char *var_val,
- u_char var_val_type,
- size_t var_val_len,
- u_char *statP,
- oid *name,
- size_t length,
- struct variable *v);
- typedef u_char *(FindVarMethod)(struct variable *v,
- oid *name,
- size_t *length,
- int exact,
- size_t *var_len,
- WriteMethod **write_method);
- /* SNMP variable */
- struct variable
- {
- /* Index of the MIB.*/
- u_char magic;
- /* Type of variable. */
- char type;
- /* Access control list. */
- u_short acl;
- /* Callback function. */
- FindVarMethod *findVar;
- /* Suffix of the MIB. */
- u_char namelen;
- oid name[MAX_OID_LEN];
- };
- /* SNMP tree. */
- struct subtree
- {
- /* Tree's oid. */
- oid name[MAX_OID_LEN];
- u_char name_len;
- /* List of the variables. */
- struct variable *variables;
- /* Length of the variables list. */
- int variables_num;
- /* Width of the variables list. */
- int variables_width;
- /* Registered flag. */
- int registered;
- };
- struct trap_object
- {
- FindVarMethod *findVar;
- u_char namelen;
- oid name[MAX_OID_LEN];
- };
- /* Declare SMUX return value. */
- #define SNMP_LOCAL_VARIABLES
- static int32_t snmp_int_val;
- static struct in_addr snmp_in_addr_val;
- #define SNMP_INTEGER(V)
- (
- *var_len = sizeof (int32_t),
- snmp_int_val = V,
- (u_char *) &snmp_int_val
- )
- #define SNMP_IPADDRESS(V)
- (
- *var_len = sizeof (struct in_addr),
- snmp_in_addr_val = V,
- (u_char *) &snmp_in_addr_val
- )
- void smux_init (oid [], size_t);
- void smux_start (void);
- void smux_register_mib(char *, struct variable *, size_t, int, oid [], size_t);
- int smux_header_generic (struct variable *, oid [], size_t *, int, size_t *,
- WriteMethod **);
- int smux_trap (oid *, size_t, oid *, size_t, struct trap_object *, size_t, unsigned int, u_char);
- int oid_compare (oid *, int, oid *, int);
- void oid2in_addr (oid [], int, struct in_addr *);
- void *oid_copy (void *, void *, size_t);
- void oid_copy_addr (oid [], struct in_addr *, int);
- #endif /* _ZEBRA_SNMP_H */