mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-21 11:13:30 +00:00
330 lines
8.2 KiB
C
330 lines
8.2 KiB
C
/*
|
|
* 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/snmpd/snmpd.h,v 1.24 2004/08/06 08:47:13 brandt Exp $
|
|
*
|
|
* Private SNMPd data and functions.
|
|
*/
|
|
#include <sys/queue.h>
|
|
#ifdef USE_LIBBEGEMOT
|
|
#include <rpoll.h>
|
|
#else
|
|
#include <isc/eventlib.h>
|
|
#endif
|
|
|
|
#define PATH_SYSCONFIG "/etc:/usr/etc:/usr/local/etc"
|
|
|
|
#ifdef USE_LIBBEGEMOT
|
|
#define evTimerID int
|
|
#define evFileID int
|
|
#endif
|
|
|
|
/*************************************************************
|
|
*
|
|
* Communities
|
|
*/
|
|
struct community {
|
|
struct lmodule *owner; /* who created the community */
|
|
u_int private;/* private name for the module */
|
|
u_int value; /* value of this community */
|
|
u_char * string; /* the community string */
|
|
const u_char * descr; /* description */
|
|
TAILQ_ENTRY(community) link;
|
|
|
|
struct asn_oid index;
|
|
};
|
|
/* list of all known communities */
|
|
extern TAILQ_HEAD(community_list, community) community_list;
|
|
|
|
/*************************************************************
|
|
*
|
|
* Request IDs.
|
|
*/
|
|
struct idrange {
|
|
u_int type; /* type id */
|
|
int32_t base; /* base of this range */
|
|
int32_t size; /* size of this range */
|
|
int32_t next; /* generator */
|
|
struct lmodule *owner; /* owner module */
|
|
TAILQ_ENTRY(idrange) link;
|
|
};
|
|
|
|
/* list of all known ranges */
|
|
extern TAILQ_HEAD(idrange_list, idrange) idrange_list;
|
|
|
|
/* identifier generator */
|
|
extern u_int next_idrange;
|
|
|
|
/* request id generator for traps */
|
|
extern u_int trap_reqid;
|
|
|
|
/*************************************************************
|
|
*
|
|
* Timers
|
|
*/
|
|
struct timer {
|
|
void (*func)(void *);/* user function */
|
|
void *udata; /* user data */
|
|
evTimerID id; /* timer id */
|
|
struct lmodule *owner; /* owner of the timer */
|
|
LIST_ENTRY(timer) link;
|
|
};
|
|
|
|
/* list of all current timers */
|
|
extern LIST_HEAD(timer_list, timer) timer_list;
|
|
|
|
|
|
/*************************************************************
|
|
*
|
|
* File descriptors
|
|
*/
|
|
struct fdesc {
|
|
int fd; /* the file descriptor */
|
|
void (*func)(int, void *);/* user function */
|
|
void *udata; /* user data */
|
|
evFileID id; /* file id */
|
|
struct lmodule *owner; /* owner module of the file */
|
|
LIST_ENTRY(fdesc) link;
|
|
};
|
|
|
|
/* list of all current selected files */
|
|
extern LIST_HEAD(fdesc_list, fdesc) fdesc_list;
|
|
|
|
/*************************************************************
|
|
*
|
|
* Loadable modules
|
|
*/
|
|
# define LM_SECTION_MAX 14
|
|
struct lmodule {
|
|
char section[LM_SECTION_MAX + 1]; /* and index */
|
|
char *path;
|
|
u_int flags;
|
|
void *handle;
|
|
const struct snmp_module *config;
|
|
|
|
TAILQ_ENTRY(lmodule) link;
|
|
TAILQ_ENTRY(lmodule) start;
|
|
|
|
struct asn_oid index;
|
|
};
|
|
#define LM_STARTED 0x0001
|
|
#define LM_ONSTARTLIST 0x0002
|
|
|
|
extern TAILQ_HEAD(lmodules, lmodule) lmodules;
|
|
|
|
struct lmodule *lm_load(const char *, const char *);
|
|
void lm_unload(struct lmodule *);
|
|
void lm_start(struct lmodule *);
|
|
|
|
/*************************************************************
|
|
*
|
|
* SNMP ports
|
|
*/
|
|
/*
|
|
* Common input stuff
|
|
*/
|
|
struct port_input {
|
|
int fd; /* socket */
|
|
void *id; /* evSelect handle */
|
|
|
|
int stream : 1; /* stream socket */
|
|
int cred : 1; /* want credentials */
|
|
|
|
struct sockaddr *peer; /* last received packet */
|
|
socklen_t peerlen;
|
|
int priv : 1; /* peer is privileged */
|
|
|
|
u_char *buf; /* receive buffer */
|
|
size_t buflen; /* buffer length */
|
|
size_t length; /* received length */
|
|
size_t consumed; /* how many bytes used */
|
|
};
|
|
|
|
struct tport {
|
|
struct asn_oid index; /* table index of this tp point */
|
|
TAILQ_ENTRY(tport) link; /* table link */
|
|
struct transport *transport; /* who handles this */
|
|
};
|
|
TAILQ_HEAD(tport_list, tport);
|
|
|
|
int snmpd_input(struct port_input *, struct tport *);
|
|
void snmpd_input_close(struct port_input *);
|
|
|
|
|
|
/*
|
|
* Transport domain
|
|
*/
|
|
#define TRANS_NAMELEN 64
|
|
|
|
struct transport_def {
|
|
const char *name; /* name of this transport */
|
|
struct asn_oid id; /* OBJID of this transport */
|
|
|
|
int (*start)(void);
|
|
int (*stop)(int);
|
|
|
|
void (*close_port)(struct tport *);
|
|
int (*init_port)(struct tport *);
|
|
|
|
ssize_t (*send)(struct tport *, const u_char *, size_t,
|
|
const struct sockaddr *, size_t);
|
|
};
|
|
struct transport {
|
|
struct asn_oid index; /* transport table index */
|
|
TAILQ_ENTRY(transport) link; /* ... and link */
|
|
u_int or_index; /* registration index */
|
|
|
|
struct tport_list table; /* list of open ports */
|
|
|
|
const struct transport_def *vtab;
|
|
};
|
|
|
|
TAILQ_HEAD(transport_list, transport);
|
|
extern struct transport_list transport_list;
|
|
|
|
void trans_insert_port(struct transport *, struct tport *);
|
|
void trans_remove_port(struct tport *);
|
|
struct tport *trans_find_port(struct transport *,
|
|
const struct asn_oid *, u_int);
|
|
struct tport *trans_next_port(struct transport *,
|
|
const struct asn_oid *, u_int);
|
|
struct tport *trans_first_port(struct transport *);
|
|
struct tport *trans_iter_port(struct transport *,
|
|
int (*)(struct tport *, intptr_t), intptr_t);
|
|
|
|
int trans_register(const struct transport_def *, struct transport **);
|
|
int trans_unregister(struct transport *);
|
|
|
|
/*************************************************************
|
|
*
|
|
* SNMPd scalar configuration.
|
|
*/
|
|
struct snmpd {
|
|
/* transmit buffer size */
|
|
u_int32_t txbuf;
|
|
|
|
/* receive buffer size */
|
|
u_int32_t rxbuf;
|
|
|
|
/* disable community table */
|
|
int comm_dis;
|
|
|
|
/* authentication traps */
|
|
int auth_traps;
|
|
|
|
/* source address for V1 traps */
|
|
u_char trap1addr[4];
|
|
|
|
/* version enable flags */
|
|
uint32_t version_enable;
|
|
};
|
|
extern struct snmpd snmpd;
|
|
|
|
#define VERS_ENABLE_V1 0x00000001
|
|
#define VERS_ENABLE_V2C 0x00000002
|
|
#define VERS_ENABLE_ALL 0x00000003
|
|
|
|
/*
|
|
* The debug group
|
|
*/
|
|
struct debug {
|
|
u_int dump_pdus;
|
|
u_int logpri;
|
|
u_int evdebug;
|
|
};
|
|
extern struct debug debug;
|
|
|
|
|
|
/*
|
|
* SNMPd statistics table
|
|
*/
|
|
struct snmpd_stats {
|
|
u_int32_t inPkts; /* total packets received */
|
|
u_int32_t inBadVersions; /* unknown version number */
|
|
u_int32_t inASNParseErrs; /* fatal parse errors */
|
|
u_int32_t inBadCommunityNames;
|
|
u_int32_t inBadCommunityUses;
|
|
u_int32_t proxyDrops; /* dropped by proxy function */
|
|
u_int32_t silentDrops;
|
|
|
|
u_int32_t inBadPduTypes;
|
|
u_int32_t inTooLong;
|
|
u_int32_t noTxbuf;
|
|
u_int32_t noRxbuf;
|
|
};
|
|
extern struct snmpd_stats snmpd_stats;
|
|
|
|
/*
|
|
* OR Table
|
|
*/
|
|
struct objres {
|
|
TAILQ_ENTRY(objres) link;
|
|
u_int index;
|
|
struct asn_oid oid; /* the resource OID */
|
|
char descr[256];
|
|
u_int32_t uptime;
|
|
struct lmodule *module;
|
|
};
|
|
TAILQ_HEAD(objres_list, objres);
|
|
extern struct objres_list objres_list;
|
|
|
|
/*
|
|
* Trap Sink Table
|
|
*/
|
|
struct trapsink {
|
|
TAILQ_ENTRY(trapsink) link;
|
|
struct asn_oid index;
|
|
u_int status;
|
|
int socket;
|
|
u_char comm[SNMP_COMMUNITY_MAXLEN];
|
|
int version;
|
|
};
|
|
enum {
|
|
TRAPSINK_ACTIVE = 1,
|
|
TRAPSINK_NOT_IN_SERVICE = 2,
|
|
TRAPSINK_NOT_READY = 3,
|
|
TRAPSINK_DESTROY = 6,
|
|
|
|
TRAPSINK_V1 = 1,
|
|
TRAPSINK_V2 = 2,
|
|
};
|
|
TAILQ_HEAD(trapsink_list, trapsink);
|
|
extern struct trapsink_list trapsink_list;
|
|
|
|
extern const char *syspath;
|
|
|
|
/* snmpSerialNo */
|
|
extern int32_t snmp_serial_no;
|
|
|
|
int init_actvals(void);
|
|
int read_config(const char *, struct lmodule *);
|
|
int define_macro(const char *name, const char *value);
|
|
|
|
#define LOG_ASN1_ERRORS 0x10000000
|
|
#define LOG_SNMP_ERRORS 0x20000000
|