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Diffstat (limited to 'contrib/bsnmp/lib/snmpagent.h')
| -rw-r--r-- | contrib/bsnmp/lib/snmpagent.h | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/contrib/bsnmp/lib/snmpagent.h b/contrib/bsnmp/lib/snmpagent.h new file mode 100644 index 0000000..a854138 --- /dev/null +++ b/contrib/bsnmp/lib/snmpagent.h @@ -0,0 +1,159 @@ +/* + * Copyright (c) 2001-2003 + * Fraunhofer Institute for Open Communication Systems (FhG Fokus). + * All rights reserved. + * + * Author: Harti Brandt <harti@freebsd.org> + * + * Redistribution of this software and documentation 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 or documentation 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. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE AND DOCUMENTATION IS PROVIDED BY FRAUNHOFER FOKUS + * AND ITS CONTRIBUTORS ``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 + * FRAUNHOFER FOKUS OR ITS CONTRIBUTORS 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. + * + * $Begemot: bsnmp/lib/snmpagent.h,v 1.9 2002/03/08 14:24:58 hbb Exp $ + * + * Header file for SNMP functions. This requires snmp.h to be included. + */ +#ifndef snmp_agent_h_ +#define snmp_agent_h_ + +struct snmp_dependency; + +/* Semi-Opaque object for SET operations */ +struct snmp_context { + u_int var_index; + struct snmp_scratch *scratch; + struct snmp_dependency *dep; + void *data; /* user data */ +}; + +struct snmp_scratch { + void *ptr1; + void *ptr2; + u_int32_t int1; + u_int32_t int2; +}; + +enum snmp_depop { + SNMP_DEPOP_COMMIT, + SNMP_DEPOP_ROLLBACK +}; + +typedef int (*snmp_depop_t)(struct snmp_context *, struct snmp_dependency *, + enum snmp_depop); + +struct snmp_dependency { + struct asn_oid obj; + struct asn_oid idx; +}; + +/* + * Functions to be called at the end of a SET operation. + */ +typedef void (*snmp_set_finish_t)(struct snmp_context *, int fail, void *); + +/* + * The TREE + */ +enum snmp_node_type { + SNMP_NODE_LEAF = 1, + SNMP_NODE_COLUMN +}; + +enum snmp_op { + SNMP_OP_GET = 1, + SNMP_OP_GETNEXT, + SNMP_OP_SET, + SNMP_OP_COMMIT, + SNMP_OP_ROLLBACK, +}; + +enum snmp_ret { + /* OK, generate a response */ + SNMP_RET_OK = 0, + /* Error, ignore packet (no response) */ + SNMP_RET_IGN = 1, + /* Error, generate response from original packet */ + SNMP_RET_ERR = 2 +}; + +typedef int (*snmp_op_t)(struct snmp_context *, struct snmp_value *, + u_int, u_int, enum snmp_op); + +struct snmp_node { + struct asn_oid oid; + const char *name; /* name of the leaf */ + enum snmp_node_type type; /* type of this node */ + enum snmp_syntax syntax; + snmp_op_t op; + u_int flags; + u_int32_t index; /* index data */ + void *data; /* application data */ +}; +extern struct snmp_node *tree; +extern u_int tree_size; + +#define SNMP_NODE_CANSET 0x0001 /* SET allowed */ + +#define SNMP_INDEXES_MAX 7 +#define SNMP_INDEX_SHIFT 4 +#define SNMP_INDEX_MASK 0xf +#define SNMP_INDEX_COUNT(V) ((V) & SNMP_INDEX_MASK) +#define SNMP_INDEX(V,I) \ + (((V) >> (((I) + 1) * SNMP_INDEX_SHIFT)) & SNMP_INDEX_MASK) + +enum { + SNMP_TRACE_GET = 0x00000001, + SNMP_TRACE_GETNEXT = 0x00000002, + SNMP_TRACE_SET = 0x00000004, + SNMP_TRACE_DEPEND = 0x00000008, + SNMP_TRACE_FIND = 0x00000010, +}; +/* trace flag for the following functions */ +extern u_int snmp_trace; + +/* called to write the trace */ +extern void (*snmp_debug)(const char *fmt, ...); + +enum snmp_ret snmp_get(struct snmp_pdu *pdu, struct asn_buf *resp_b, + struct snmp_pdu *resp, void *); +enum snmp_ret snmp_getnext(struct snmp_pdu *pdu, struct asn_buf *resp_b, + struct snmp_pdu *resp, void *); +enum snmp_ret snmp_getbulk(struct snmp_pdu *pdu, struct asn_buf *resp_b, + struct snmp_pdu *resp, void *); +enum snmp_ret snmp_set(struct snmp_pdu *pdu, struct asn_buf *resp_b, + struct snmp_pdu *resp, void *); + +enum snmp_ret snmp_make_errresp(const struct snmp_pdu *, struct asn_buf *, + struct asn_buf *); + +struct snmp_dependency *snmp_dep_lookup(struct snmp_context *, + const struct asn_oid *, const struct asn_oid *, size_t, snmp_depop_t); + +int snmp_set_atfinish(struct snmp_context *, snmp_set_finish_t func, void *arg); + +struct snmp_context *snmp_init_context(void); +int snmp_dep_commit(struct snmp_context *); +int snmp_dep_rollback(struct snmp_context *); + +#endif |
