Started development on the SNMP polling daemon.

1 files changed, 174 insertions, 0 deletions

diff --git a/src/bsnmp/snmp.h b/src/bsnmp/snmp.h
new file mode 100644
index 0000000..1ae0775
--- /dev/null
+++ b/src/bsnmp/snmp.h
@@ -0,0 +1,174 @@
+/*
+ * Copyright (c) 2001-2003
+ *	Fraunhofer Institute for Open Communication Systems (FhG Fokus).
+ *	All rights reserved.
+ *
+ * Author: Harti Brandt <harti@freebsd.org>
+ *
+ * Redistribution 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 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY AUTHOR AND 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 AUTHOR OR 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/snmp.h,v 1.30 2004/08/06 08:46:54 brandt Exp $
+ *
+ * Header file for SNMP functions.
+ */
+#ifndef snmp_h_
+#define snmp_h_
+
+#include <sys/types.h>
+
+#define SNMP_COMMUNITY_MAXLEN	128
+#define SNMP_MAX_BINDINGS	100
+
+enum snmp_syntax {
+	SNMP_SYNTAX_NULL	= 0,
+	SNMP_SYNTAX_INTEGER,		/* == INTEGER32 */
+	SNMP_SYNTAX_OCTETSTRING,
+	SNMP_SYNTAX_OID,
+	SNMP_SYNTAX_IPADDRESS,
+	SNMP_SYNTAX_COUNTER,
+	SNMP_SYNTAX_GAUGE,		/* == UNSIGNED32 */
+	SNMP_SYNTAX_TIMETICKS,
+
+	/* v2 additions */
+	SNMP_SYNTAX_COUNTER64,
+	SNMP_SYNTAX_NOSUCHOBJECT,	/* exception */
+	SNMP_SYNTAX_NOSUCHINSTANCE,	/* exception */
+	SNMP_SYNTAX_ENDOFMIBVIEW,	/* exception */
+};
+
+struct snmp_value {
+	struct asn_oid		var;
+	enum snmp_syntax	syntax;
+	union snmp_values {
+	  int32_t		integer;	/* also integer32 */
+	  struct {
+	    u_int		len;
+	    u_char		*octets;
+	  }			octetstring;
+	  struct asn_oid	oid;
+	  u_char		ipaddress[4];
+	  uint32_t		uint32;		/* also gauge32, counter32,
+						   unsigned32, timeticks */
+	  uint64_t		counter64;
+	}			v;
+};
+
+enum snmp_version {
+	SNMP_Verr = 0,
+	SNMP_V1 = 1,
+	SNMP_V2c,
+};
+
+struct snmp_pdu {
+	char		community[SNMP_COMMUNITY_MAXLEN + 1];
+	enum snmp_version version;
+	u_int		type;
+
+	/* trap only */
+	struct asn_oid	enterprise;
+	u_char		agent_addr[4];
+	int32_t		generic_trap;
+	int32_t		specific_trap;
+	uint32_t	time_stamp;
+
+	/* others */
+	int32_t		request_id;
+	int32_t		error_status;
+	int32_t		error_index;
+
+	/* fixes for encoding */
+	u_char		*outer_ptr;
+	u_char		*pdu_ptr;
+	u_char		*vars_ptr;
+
+	struct snmp_value bindings[SNMP_MAX_BINDINGS];
+	u_int		nbindings;
+};
+#define snmp_v1_pdu snmp_pdu
+
+#define SNMP_PDU_GET		0
+#define SNMP_PDU_GETNEXT	1
+#define SNMP_PDU_RESPONSE	2
+#define SNMP_PDU_SET		3
+#define SNMP_PDU_TRAP		4	/* v1 */
+#define SNMP_PDU_GETBULK	5	/* v2 */
+#define SNMP_PDU_INFORM		6	/* v2 */
+#define SNMP_PDU_TRAP2		7	/* v2 */
+#define SNMP_PDU_REPORT		8	/* v2 */
+
+#define SNMP_ERR_NOERROR	0
+#define SNMP_ERR_TOOBIG		1
+#define SNMP_ERR_NOSUCHNAME	2	/* v1 */
+#define SNMP_ERR_BADVALUE	3	/* v1 */
+#define SNMP_ERR_READONLY	4	/* v1 */
+#define SNMP_ERR_GENERR		5
+#define SNMP_ERR_NO_ACCESS	6	/* v2 */
+#define SNMP_ERR_WRONG_TYPE	7	/* v2 */
+#define SNMP_ERR_WRONG_LENGTH	8	/* v2 */
+#define SNMP_ERR_WRONG_ENCODING	9	/* v2 */
+#define SNMP_ERR_WRONG_VALUE	10	/* v2 */
+#define SNMP_ERR_NO_CREATION	11	/* v2 */
+#define SNMP_ERR_INCONS_VALUE	12	/* v2 */
+#define SNMP_ERR_RES_UNAVAIL	13	/* v2 */
+#define SNMP_ERR_COMMIT_FAILED	14	/* v2 */
+#define SNMP_ERR_UNDO_FAILED	15	/* v2 */
+#define SNMP_ERR_AUTH_ERR	16	/* v2 */
+#define SNMP_ERR_NOT_WRITEABLE	17	/* v2 */
+#define SNMP_ERR_INCONS_NAME	18	/* v2 */
+
+#define SNMP_TRAP_COLDSTART	0
+#define SNMP_TRAP_WARMSTART	1
+#define SNMP_TRAP_LINKDOWN	2
+#define SNMP_TRAP_LINKUP	3
+#define SNMP_TRAP_AUTHENTICATION_FAILURE	4
+#define SNMP_TRAP_EGP_NEIGHBOR_LOSS	5
+#define SNMP_TRAP_ENTERPRISE	6
+
+enum snmp_code {
+	SNMP_CODE_OK = 0,
+	SNMP_CODE_FAILED,
+	SNMP_CODE_BADVERS,
+	SNMP_CODE_BADLEN,
+	SNMP_CODE_BADENC,
+	SNMP_CODE_OORANGE,
+};
+
+void snmp_value_free(struct snmp_value *);
+int snmp_value_parse(const char *, enum snmp_syntax, union snmp_values *);
+int snmp_value_copy(struct snmp_value *, const struct snmp_value *);
+
+void snmp_pdu_free(struct snmp_pdu *);
+enum snmp_code snmp_pdu_decode(struct asn_buf *b, struct snmp_pdu *pdu, int32_t *);
+enum snmp_code snmp_pdu_encode(struct snmp_pdu *pdu, struct asn_buf *resp_b);
+
+int snmp_pdu_snoop(const struct asn_buf *);
+
+void snmp_pdu_dump(const struct snmp_pdu *pdu);
+
+extern void (*snmp_error)(const char *, ...);
+extern void (*snmp_printf)(const char *, ...);
+
+#define TRUTH_MK(F) ((F) ? 1 : 2)
+#define TRUTH_GET(T) (((T) == 1) ? 1 : 0)
+#define TRUTH_OK(T)  ((T) == 1 || (T) == 2)
+
+#endif