/*! \fn void snmp_spine_init()
* \brief wrapper function for init_snmp
*
* Initializes snmp for the given application ID
*
*/
void snmp_spine_init(void) {
#ifdef USE_NET_SNMP
/* Only do numeric output */
#ifdef NETSNMP_DS_LIB_PRINT_NUMERIC_ENUM
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_PRINT_NUMERIC_ENUM, 1);
#endif
/* Prevent update of the snmpapp.conf file */
#ifdef NETSNMP_DS_LIB_DONT_PERSIST_STATE
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_DONT_PERSIST_STATE, 1);
#endif
/* Prevent update of the snmpapp.conf file */
#ifdef NETSNMP_DS_LIB_DISABLE_PERSISTENT_LOAD
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_DISABLE_PERSISTENT_LOAD, 1);
#endif
#ifdef NETSNMP_DS_LIB_DONT_PRINT_UNITS
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_DONT_PRINT_UNITS, 1);
#endif
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT, 1);
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICKE_PRINT, 1);
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_PRINT_BARE_VALUE, 1);
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_NUMERIC_TIMETICKS, 1);
#ifdef PACKAGE_VERSION
/* check that the headers we compiled with match the library we linked with -
apparently not defined in UCD-SNMP...
*/
SPINE_LOG_DEBUG(("DEBUG: SNMP Header Version is %s\n", PACKAGE_VERSION));
SPINE_LOG_DEBUG(("DEBUG: SNMP Library Version is %s\n", netsnmp_get_version()));
if(STRMATCH(PACKAGE_VERSION,netsnmp_get_version())) {
init_snmp("spine");
}else{
/* report the error and quit spine */
die("ERROR: SNMP Library Version Mismatch (%s vs %s)",PACKAGE_VERSION,netsnmp_get_version());
}
#else
SPINE_LOG_DEBUG(("DEBUG: Issues with SNMP Header Version information, assuming old version of Net-SNMP.\n"));
init_snmp("spine");
#endif
#else
ds_set_boolean(DS_LIBRARY_ID, DS_LIB_QUICK_PRINT, 1);
ds_set_boolean(DS_LIBRARY_ID, DS_LIB_PRINT_BARE_VALUE, 1);
ds_set_boolean(DS_LIBRARY_ID, DS_LIB_NUMERIC_TIMETICKS, 1);
init_snmp("spine");
#endif
}
void
usage(void)
{
fprintf(stderr,
"Usage: snmpnetstat [options...] hostname [interval]\n");
fprintf(stderr, "NET-SNMP version: %s\n", netsnmp_get_version());
fprintf(stderr, " -v [1 | 2c ] SNMP version\n");
fprintf(stderr, " -V display version number\n");
fprintf(stderr, " -c community specify community name\n");
fprintf(stderr, " -t timeout SNMP packet timeout (seconds)\n");
fprintf(stderr,
" -i show interfaces with packet counters\n");
fprintf(stderr,
" -o show interfaces with octet counters\n");
fprintf(stderr, " -r show routing table\n");
fprintf(stderr, " -s show general statistics\n");
fprintf(stderr, " -n show IP addresses, not names\n");
fprintf(stderr, " -a show sockets in LISTEN mode too\n");
fprintf(stderr,
" -P proto show only details for this protocol\n");
fprintf(stderr, " -I interface show only this interface\n");
fprintf(stderr, " -d dump packets\n");
fprintf(stderr, " -Ddebugspec \n");
}
static void
version(void)
{
printf("\nNET-SNMP Version: %s\n", netsnmp_get_version());
printf("Web: http://www.net-snmp.org/\n");
printf("Email: [email protected]\n\n");
}
void
snmp_parse_args_descriptions(FILE * outf)
{
fprintf(outf, " Version: %s\n", netsnmp_get_version());
fprintf(outf, " Web: http://www.net-snmp.org/\n");
fprintf(outf,
" Email: [email protected]\n\nOPTIONS:\n");
fprintf(outf, " -h, --help\t\tdisplay this help message\n");
fprintf(outf,
" -H\t\t\tdisplay configuration file directives understood\n");
fprintf(outf, " -v 1|2c|3\t\tspecifies SNMP version to use\n");
fprintf(outf, " -V, --version\t\tdisplay package version number\n");
fprintf(outf, "SNMP Version 1 or 2c specific\n");
fprintf(outf, " -c COMMUNITY\t\tset the community string\n");
fprintf(outf, "SNMP Version 3 specific\n");
fprintf(outf,
" -a PROTOCOL\t\tset authentication protocol (MD5|SHA)\n");
fprintf(outf,
" -A PASSPHRASE\t\tset authentication protocol pass phrase\n");
fprintf(outf,
" -e ENGINE-ID\t\tset security engine ID (e.g. 800000020109840301)\n");
fprintf(outf,
" -E ENGINE-ID\t\tset context engine ID (e.g. 800000020109840301)\n");
fprintf(outf,
" -l LEVEL\t\tset security level (noAuthNoPriv|authNoPriv|authPriv)\n");
fprintf(outf, " -n CONTEXT\t\tset context name (e.g. bridge1)\n");
fprintf(outf, " -u USER-NAME\t\tset security name (e.g. bert)\n");
fprintf(outf, " -x PROTOCOL\t\tset privacy protocol (DES)\n");
fprintf(outf, " -X PASSPHRASE\t\tset privacy protocol pass phrase\n");
fprintf(outf,
" -Z BOOTS,TIME\t\tset destination engine boots/time\n");
fprintf(outf, "General communication options\n");
fprintf(outf, " -r RETRIES\t\tset the number of retries\n");
fprintf(outf,
" -t TIMEOUT\t\tset the request timeout (in seconds)\n");
fprintf(outf, "Debugging\n");
fprintf(outf, " -d\t\t\tdump input/output packets in hexadecimal\n");
fprintf(outf,
" -D TOKEN[,...]\tturn on debugging output for the specified TOKENs\n\t\t\t (ALL gives extremely verbose debugging output)\n");
fprintf(outf, "General options\n");
fprintf(outf,
" -m MIB[:...]\t\tload given list of MIBs (ALL loads everything)\n");
fprintf(outf,
" -M DIR[:...]\t\tlook in given list of directories for MIBs\n");
fprintf(outf,
" -P MIBOPTS\t\tToggle various defaults controlling MIB parsing:\n");
snmp_mib_toggle_options_usage("\t\t\t ", outf);
fprintf(outf,
" -O OUTOPTS\t\tToggle various defaults controlling output display:\n");
snmp_out_toggle_options_usage("\t\t\t ", outf);
fprintf(outf,
" -I INOPTS\t\tToggle various defaults controlling input parsing:\n");
snmp_in_toggle_options_usage("\t\t\t ", outf);
fflush(outf);
}
void
usage(void)
{
fprintf(stderr, "USAGE: snmptranslate [OPTIONS] OID [OID]...\n\n");
fprintf(stderr, " Version: %s\n", netsnmp_get_version());
fprintf(stderr, " Web: http://www.net-snmp.org/\n");
fprintf(stderr,
" Email: [email protected]\n\nOPTIONS:\n");
fprintf(stderr, " -h\t\t\tdisplay this help message\n");
fprintf(stderr, " -V\t\t\tdisplay package version number\n");
fprintf(stderr,
" -m MIB[:...]\t\tload given list of MIBs (ALL loads everything)\n");
fprintf(stderr,
" -M DIR[:...]\t\tlook in given list of directories for MIBs\n");
fprintf(stderr,
" -D TOKEN[,...]\tturn on debugging output for the specified TOKENs\n\t\t\t (ALL gives extremely verbose debugging output)\n");
fprintf(stderr, " -w WIDTH\t\tset width of tree and detail output\n");
fprintf(stderr,
" -T TRANSOPTS\t\tSet various options controlling report produced:\n");
fprintf(stderr,
"\t\t\t B: print all matching objects for a regex search\n");
fprintf(stderr, "\t\t\t d: print full details of the given OID\n");
fprintf(stderr, "\t\t\t p: print tree format symbol table\n");
fprintf(stderr, "\t\t\t a: print ASCII format symbol table\n");
fprintf(stderr, "\t\t\t l: enable labeled OID report\n");
fprintf(stderr, "\t\t\t o: enable OID report\n");
fprintf(stderr, "\t\t\t s: enable dotted symbolic report\n");
fprintf(stderr, "\t\t\t z: enable MIB child OID report\n");
fprintf(stderr,
"\t\t\t t: enable alternate format symbolic suffix report\n");
#ifndef NETSNMP_DISABLE_MIB_LOADING
fprintf(stderr,
" -P MIBOPTS\t\tToggle various defaults controlling mib parsing:\n");
snmp_mib_toggle_options_usage("\t\t\t ", stderr);
#endif /* NETSNMP_DISABLE_MIB_LOADING */
fprintf(stderr,
" -O OUTOPTS\t\tToggle various defaults controlling output display:\n");
snmp_out_toggle_options_usage("\t\t\t ", stderr);
fprintf(stderr,
" -I INOPTS\t\tToggle various defaults controlling input parsing:\n");
snmp_in_toggle_options_usage("\t\t\t ", stderr);
fprintf(stderr,
" -L LOGOPTS\t\tToggle various defaults controlling logging:\n");
snmp_log_options_usage("\t\t\t ", stderr);
exit(1);
}
void version(void) {
fprintf(stdout,
"SNMP Text Traffic Grapher\n"
"Copyright (c) 2005 - 2012 by Antoni Sawicki\n"
"Version %s [Build: %s, %s]\n"
"NET-SNMP Libraries=%s Headers=%s\n"
"GCC Version %s\n"
"Kilo=%d (default)\n"
"Homepage: http://www.tenox.tc/out#ttg\n"
"Licensed under BSD\n"
"Credits:\n"
" [email protected]\n"
" [email protected]\n"
" [email protected]\n"
" [email protected]\n",
VERSION, __DATE__, __TIME__, netsnmp_get_version(), PACKAGE_VERSION, __VERSION__, (int)S_KB);
exit(0);
}
static void
usage(const char* progname)
{
fprintf(stderr,
"USAGE: %s [OPTIONS] TRAP-PARAMETERS\n"
"\n"
" Version: %s\n"
" Web: http://www.net-snmp.org/\n"
" Email: [email protected]\n"
"\n"
"OPTIONS:\n", progname, netsnmp_get_version());
fprintf(stderr,
" -h\t\t\tdisplay this help message\n"
" -V\t\t\tdisplay package version number\n"
" -m MIB[" ENV_SEPARATOR "...]\t\tload given list of MIBs (ALL loads "
"everything)\n"
" -M DIR[" ENV_SEPARATOR "...]\t\tlook in given list of directories for MIBs\n"
" -D[TOKEN[,...]]\tturn on debugging output for the specified "
"TOKENs\n"
"\t\t\t (ALL gives extremely verbose debugging output)\n"
" -d\t\t\tdump all traffic\n");
#ifndef NETSNMP_DISABLE_MIB_LOADING
fprintf(stderr,
" -P MIBOPTS\t\tToggle various defaults controlling mib "
"parsing:\n");
snmp_mib_toggle_options_usage("\t\t\t ", stderr);
#endif /* NETSNMP_DISABLE_MIB_LOADING */
fprintf(stderr,
" -L LOGOPTS\t\tToggle various defaults controlling logging:\n");
snmp_log_options_usage("\t\t\t ", stderr);
fprintf(stderr,
" -c context\n"
" -U uptime\n"
" -x ADDRESS\t\tuse ADDRESS as AgentX address\n"
"\n"
"TRAP-PARAMETERS:\n"
" trapoid [OID TYPE VALUE] ...\n");
}
int
snmp_parse_args(int argc,
char *const *argv,
netsnmp_session * session, const char *localOpts,
void (*proc) (int, char *const *, int))
{
int arg;
char *cp;
char *Apsz = NULL;
char *Xpsz = NULL;
char *Cpsz = NULL;
char Opts[BUF_SIZE];
/*
* initialize session to default values
*/
snmp_sess_init(session);
strcpy(Opts, "Y:VhHm:M:O:I:P:D:dv:r:t:c:Z:e:E:n:u:l:x:X:a:A:p:T:-:3:");
if (localOpts)
strcat(Opts, localOpts);
/*
* get the options
*/
DEBUGMSGTL(("snmp_parse_args", "starting: %d/%d\n", optind, argc));
for (arg = 0; arg < argc; arg++) {
DEBUGMSGTL(("snmp_parse_args", " arg %d = %s\n", arg, argv[arg]));
}
optind = 1;
while ((arg = getopt(argc, argv, Opts)) != EOF) {
DEBUGMSGTL(("snmp_parse_args", "handling (#%d): %c\n", optind,
arg));
switch (arg) {
case '-':
if (strcasecmp(optarg, "help") == 0) {
return (-1);
}
if (strcasecmp(optarg, "version") == 0) {
fprintf(stderr, "NET-SNMP version: %s\n",
netsnmp_get_version());
return (-2);
}
handle_long_opt(optarg);
break;
case 'V':
fprintf(stderr, "NET-SNMP version: %s\n",
netsnmp_get_version());
return (-2);
case 'h':
return (-1);
break;
case 'H':
init_snmp("snmpapp");
fprintf(stderr, "Configuration directives understood:\n");
read_config_print_usage(" ");
return (-2);
case 'Y':
netsnmp_config_remember(optarg);
break;
case 'm':
setenv("MIBS", optarg, 1);
break;
case 'M':
setenv("MIBDIRS", optarg, 1);
break;
case 'O':
cp = snmp_out_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr,
"Unknown output option passed to -O: %c.\n", *cp);
return (-1);
}
break;
case 'I':
cp = snmp_in_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr, "Unknown input option passed to -I: %c.\n",
*cp);
return (-1);
}
break;
case 'P':
cp = snmp_mib_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr,
"Unknown parsing option passed to -P: %c.\n", *cp);
return (-1);
}
break;
case 'D':
debug_register_tokens(optarg);
snmp_set_do_debugging(1);
break;
case 'd':
ds_set_boolean(DS_LIBRARY_ID, DS_LIB_DUMP_PACKET, 1);
break;
case 'v':
if (!strcmp(optarg, "1")) {
session->version = SNMP_VERSION_1;
} else if (!strcasecmp(optarg, "2c")) {
session->version = SNMP_VERSION_2c;
} else if (!strcasecmp(optarg, "3")) {
session->version = SNMP_VERSION_3;
} else {
fprintf(stderr,
"Invalid version specified after -v flag: %s\n",
optarg);
return (-1);
}
break;
case 'p':
fprintf(stderr, "Warning: -p option is no longer used - ");
fprintf(stderr, "specify the remote host as HOST:PORT\n");
return (-1);
break;
case 'T':
fprintf(stderr, "Warning: -T option is no longer used - ");
fprintf(stderr, "specify the remote host as TRANSPORT:HOST\n");
return (-1);
break;
case 't':
session->timeout = atoi(optarg) * 1000000L;
if (session->timeout < 0 || !isdigit(optarg[0])) {
fprintf(stderr,
"Invalid timeout in seconds after -t flag.\n");
return (-1);
}
break;
case 'r':
session->retries = atoi(optarg);
if (session->retries < 0 || !isdigit(optarg[0])) {
fprintf(stderr,
"Invalid number of retries after -r flag.\n");
return (-1);
}
break;
case 'c':
Cpsz = optarg;
break;
case '3':
if (snmpv3_options(optarg, session, &Apsz, &Xpsz, argc, argv) <
0) {
return (-1);
}
break;
#define SNMPV3_CMD_OPTIONS
#ifdef SNMPV3_CMD_OPTIONS
case 'Z':
session->engineBoots = strtoul(optarg, NULL, 10);
if (session->engineBoots == 0 || !isdigit(optarg[0])) {
fprintf(stderr,
"Need engine boots value after -Z flag.\n");
return (-1);
}
cp = strchr(optarg, ',');
if (cp && *(++cp) && isdigit(*cp))
session->engineTime = strtoul(cp, NULL, 10);
/*
* Handle previous '-Z boot time' syntax
*/
else if ((optind < argc) && isdigit(argv[optind][0]))
session->engineTime = strtoul(argv[optind], NULL, 10);
else {
fprintf(stderr, "Need engine time value after -Z flag.\n");
return (-1);
}
break;
case 'e':{
size_t ebuf_len = 32, eout_len = 0;
u_char *ebuf = (u_char *) malloc(ebuf_len);
if (ebuf == NULL) {
fprintf(stderr,
"malloc failure processing -e flag.\n");
return (-1);
}
if (!snmp_hex_to_binary
(&ebuf, &ebuf_len, &eout_len, 1, optarg)) {
fprintf(stderr,
"Bad engine ID value after -e flag.\n");
free(ebuf);
return (-1);
}
session->securityEngineID = ebuf;
session->securityEngineIDLen = eout_len;
break;
}
case 'E':{
size_t ebuf_len = 32, eout_len = 0;
u_char *ebuf = (u_char *) malloc(ebuf_len);
if (ebuf == NULL) {
fprintf(stderr,
"malloc failure processing -E flag.\n");
return (-1);
}
if (!snmp_hex_to_binary
(&ebuf, &ebuf_len, &eout_len, 1, optarg)) {
fprintf(stderr,
"Bad engine ID value after -E flag.\n");
free(ebuf);
return (-1);
}
session->contextEngineID = ebuf;
session->contextEngineIDLen = eout_len;
break;
}
case 'n':
session->contextName = optarg;
session->contextNameLen = strlen(optarg);
break;
case 'u':
session->securityName = optarg;
session->securityNameLen = strlen(optarg);
break;
case 'l':
if (!strcasecmp(optarg, "noAuthNoPriv") || !strcmp(optarg, "1")
|| !strcasecmp(optarg, "nanp")) {
session->securityLevel = SNMP_SEC_LEVEL_NOAUTH;
} else if (!strcasecmp(optarg, "authNoPriv")
|| !strcmp(optarg, "2")
|| !strcasecmp(optarg, "anp")) {
session->securityLevel = SNMP_SEC_LEVEL_AUTHNOPRIV;
} else if (!strcasecmp(optarg, "authPriv")
|| !strcmp(optarg, "3")
|| !strcasecmp(optarg, "ap")) {
session->securityLevel = SNMP_SEC_LEVEL_AUTHPRIV;
} else {
fprintf(stderr,
"Invalid security level specified after -l flag: %s\n",
optarg);
return (-1);
}
break;
case 'a':
if (!strcasecmp(optarg, "MD5")) {
session->securityAuthProto = usmHMACMD5AuthProtocol;
session->securityAuthProtoLen = USM_AUTH_PROTO_MD5_LEN;
} else if (!strcasecmp(optarg, "SHA")) {
session->securityAuthProto = usmHMACSHA1AuthProtocol;
session->securityAuthProtoLen = USM_AUTH_PROTO_SHA_LEN;
} else {
fprintf(stderr,
"Invalid authentication protocol specified after -a flag: %s\n",
optarg);
return (-1);
}
break;
case 'x':
if (!strcasecmp(optarg, "DES")) {
session->securityPrivProto = usmDESPrivProtocol;
session->securityPrivProtoLen = USM_PRIV_PROTO_DES_LEN;
} else {
fprintf(stderr,
"Invalid privacy protocol specified after -x flag: %s\n",
optarg);
return (-1);
}
break;
case 'A':
Apsz = optarg;
break;
case 'X':
Xpsz = optarg;
break;
#endif /* SNMPV3_CMD_OPTIONS */
case '?':
return (-1);
break;
default:
proc(argc, argv, arg);
break;
}
}
DEBUGMSGTL(("snmp_parse_args", "finished: %d/%d\n", optind, argc));
/*
* read in MIB database and initialize the snmp library
*/
init_snmp("snmpapp");
/*
* session default version
*/
if (session->version == SNMP_DEFAULT_VERSION) {
/*
* run time default version
*/
session->version = ds_get_int(DS_LIBRARY_ID, DS_LIB_SNMPVERSION);
/*
* compile time default version
*/
if (!session->version) {
switch (SNMP_DEFAULT_VERSION) {
case 1:
session->version = SNMP_VERSION_1;
break;
case 2:
session->version = SNMP_VERSION_2c;
break;
case 3:
session->version = SNMP_VERSION_3;
break;
}
} else {
if (session->version == DS_SNMP_VERSION_1) /* bogus value. version 1 actually = 0 */
session->version = SNMP_VERSION_1;
}
}
/*
* make master key from pass phrases
*/
if (Apsz) {
session->securityAuthKeyLen = USM_AUTH_KU_LEN;
if (session->securityAuthProto == NULL) {
/*
* get .conf set default
*/
const oid *def =
get_default_authtype(&session->securityAuthProtoLen);
session->securityAuthProto =
snmp_duplicate_objid(def, session->securityAuthProtoLen);
}
if (session->securityAuthProto == NULL) {
/*
* assume MD5
*/
session->securityAuthProto =
snmp_duplicate_objid(usmHMACMD5AuthProtocol,
USM_AUTH_PROTO_MD5_LEN);
session->securityAuthProtoLen = USM_AUTH_PROTO_MD5_LEN;
}
if (generate_Ku(session->securityAuthProto,
session->securityAuthProtoLen,
(u_char *) Apsz, strlen(Apsz),
session->securityAuthKey,
&session->securityAuthKeyLen) != SNMPERR_SUCCESS) {
snmp_perror(argv[0]);
fprintf(stderr,
"Error generating a key (Ku) from the supplied authentication pass phrase. \n");
return (-2);
}
}
if (Xpsz) {
session->securityPrivKeyLen = USM_PRIV_KU_LEN;
if (session->securityPrivProto == NULL) {
/*
* get .conf set default
*/
const oid *def =
get_default_privtype(&session->securityPrivProtoLen);
session->securityPrivProto =
snmp_duplicate_objid(def, session->securityPrivProtoLen);
}
if (session->securityPrivProto == NULL) {
/*
* assume DES
*/
session->securityPrivProto =
snmp_duplicate_objid(usmDESPrivProtocol,
USM_PRIV_PROTO_DES_LEN);
session->securityPrivProtoLen = USM_PRIV_PROTO_DES_LEN;
}
if (generate_Ku(session->securityAuthProto,
session->securityAuthProtoLen,
(u_char *) Xpsz, strlen(Xpsz),
session->securityPrivKey,
&session->securityPrivKeyLen) != SNMPERR_SUCCESS) {
snmp_perror(argv[0]);
fprintf(stderr,
"Error generating a key (Ku) from the supplied privacy pass phrase. \n");
return (-2);
}
}
/*
* get the hostname
*/
if (optind == argc) {
fprintf(stderr, "No hostname specified.\n");
return (-1);
}
session->peername = argv[optind++]; /* hostname */
/*
* If v1 or v2c, check community has been set, either by a -c option above,
* or via a default token somewhere.
*/
if (session->version == SNMP_VERSION_1 ||
session->version == SNMP_VERSION_2c) {
if (Cpsz == NULL) {
Cpsz = ds_get_string(DS_LIBRARY_ID, DS_LIB_COMMUNITY);
}
if (Cpsz == NULL) {
fprintf(stderr, "No community name specified.\n");
return (-1);
}
session->community = (unsigned char *) Cpsz;
session->community_len = strlen(Cpsz);
}
return optind;
}
main(int argc, char *argv[])
#endif
{
char options[128] = "aAc:CdD::efF:g:hHI:L:m:M:no:O:PqsS:tu:vx:-:";
netsnmp_session *sess_list = NULL, *ss = NULL;
netsnmp_transport *transport = NULL;
int arg, i = 0, depmsg = 0;
int uid = 0, gid = 0;
int count, numfds, block;
fd_set readfds,writefds,exceptfds;
struct timeval timeout, *tvp;
char *cp, *listen_ports = NULL;
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
int agentx_subagent = 1;
#endif
netsnmp_trapd_handler *traph;
#ifdef NETSNMP_EMBEDDED_PERL
extern void init_perl(void);
#endif
#ifndef WIN32
/*
* close all non-standard file descriptors we may have
* inherited from the shell.
*/
for (i = getdtablesize() - 1; i > 2; --i) {
(void) close(i);
}
#endif /* #WIN32 */
#ifdef SIGTERM
signal(SIGTERM, term_handler);
#endif
#ifdef SIGHUP
signal(SIGHUP, SIG_IGN); /* do not terminate on early SIGHUP */
#endif
#ifdef SIGINT
signal(SIGINT, term_handler);
#endif
#ifdef SIGPIPE
signal(SIGPIPE, SIG_IGN); /* 'Inline' failure of wayward readers */
#endif
#ifdef SIGHUP
signal(SIGHUP, SIG_IGN); /* do not terminate on early SIGHUP */
#endif
/*
* register our configuration handlers now so -H properly displays them
*/
snmptrapd_register_configs( );
init_usm_conf( "snmptrapd" );
register_config_handler("snmptrapd", "snmpTrapdAddr",
parse_trapd_address, free_trapd_address, "string");
register_config_handler("snmptrapd", "doNotLogTraps",
parse_config_doNotLogTraps, NULL, "(1|yes|true|0|no|false)");
#if HAVE_GETPID
register_config_handler("snmptrapd", "pidFile",
parse_config_pidFile, NULL, "string");
#endif
#ifdef HAVE_UNISTD_H
register_config_handler("snmptrapd", "agentuser",
parse_config_agentuser, NULL, "userid");
register_config_handler("snmptrapd", "agentgroup",
parse_config_agentgroup, NULL, "groupid");
#endif
register_config_handler("snmptrapd", "logOption",
parse_config_logOption, NULL, "string");
register_config_handler("snmptrapd", "doNotFork",
parse_config_doNotFork, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "printEventNumbers",
parse_config_printEventNumbers, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "ignoreAuthFailure",
parse_config_ignoreAuthFailure, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "outputOption",
parse_config_outputOption, NULL, "string");
#ifdef WIN32
setvbuf(stdout, NULL, _IONBF, BUFSIZ);
#else
setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
#endif
/*
* Add some options if they are available.
*/
#if HAVE_GETPID
strcat(options, "p:");
#endif
#ifdef WIN32
snmp_log_syslogname(app_name_long);
#else
snmp_log_syslogname(app_name);
#endif
/*
* Now process options normally.
*/
while ((arg = getopt(argc, argv, options)) != EOF) {
switch (arg) {
case '-':
if (strcasecmp(optarg, "help") == 0) {
usage();
exit(0);
}
if (strcasecmp(optarg, "version") == 0) {
version();
exit(0);
}
handle_long_opt(optarg);
break;
case 'a':
dropauth = 1;
break;
case 'A':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPEND_LOGFILES, 1);
break;
case 'c':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_OPTIONALCONFIG, optarg);
} else {
usage();
exit(1);
}
break;
case 'C':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DONT_READ_CONFIGS, 1);
break;
case 'd':
snmp_set_dump_packet(1);
break;
case 'D':
debug_register_tokens(optarg);
snmp_set_do_debugging(1);
break;
case 'e':
Event++;
break;
case 'f':
dofork = 0;
break;
case 'F':
if (optarg != NULL) {
trap1_fmt_str_remember = optarg;
} else {
usage();
exit(1);
}
break;
#if HAVE_UNISTD_H
case 'g':
if (optarg != NULL) {
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID, gid = atoi(optarg));
} else {
usage();
exit(1);
}
break;
#endif
case 'h':
usage();
exit(0);
case 'H':
init_agent("snmptrapd");
#ifdef USING_NOTIFICATION_LOG_MIB_NOTIFICATION_LOG_MODULE
init_notification_log();
#endif
#ifdef NETSNMP_EMBEDDED_PERL
init_perl();
#endif
init_snmp("snmptrapd");
fprintf(stderr, "Configuration directives understood:\n");
read_config_print_usage(" ");
exit(0);
case 'I':
if (optarg != NULL) {
add_to_init_list(optarg);
} else {
usage();
}
break;
case 'S':
fprintf(stderr,
"Warning: -S option is deprecated; use -Ls <facility> instead\n");
depmsg = 1;
if (optarg != NULL) {
switch (*optarg) {
case 'd':
case 'D':
Facility = LOG_DAEMON;
break;
case 'i':
case 'I':
Facility = LOG_INFO;
break;
case '0':
Facility = LOG_LOCAL0;
break;
case '1':
Facility = LOG_LOCAL1;
break;
case '2':
Facility = LOG_LOCAL2;
break;
case '3':
Facility = LOG_LOCAL3;
break;
case '4':
Facility = LOG_LOCAL4;
break;
case '5':
Facility = LOG_LOCAL5;
break;
case '6':
Facility = LOG_LOCAL6;
break;
case '7':
Facility = LOG_LOCAL7;
break;
default:
fprintf(stderr, "invalid syslog facility: -S%c\n",*optarg);
usage();
exit(1);
}
} else {
fprintf(stderr, "no syslog facility specified\n");
usage();
exit(1);
}
break;
case 'm':
if (optarg != NULL) {
setenv("MIBS", optarg, 1);
} else {
usage();
exit(1);
}
break;
case 'M':
if (optarg != NULL) {
setenv("MIBDIRS", optarg, 1);
} else {
usage();
exit(1);
}
break;
case 'n':
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_APP_NUMERIC_IP, 1);
break;
case 'o':
fprintf(stderr,
"Warning: -o option is deprecated; use -Lf <file> instead\n");
if (optarg != NULL) {
logfile = optarg;
snmp_enable_filelog(optarg,
netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPEND_LOGFILES));
} else {
usage();
exit(1);
}
break;
case 'O':
cp = snmp_out_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr, "Unknown output option passed to -O: %c\n",
*cp);
usage();
exit(1);
}
break;
case 'L':
if (snmp_log_options( optarg, argc, argv ) < 0 ) {
usage();
exit(1);
}
break;
#if HAVE_GETPID
case 'p':
if (optarg != NULL) {
parse_config_pidFile(NULL, optarg);
} else {
usage();
exit(1);
}
break;
#endif
case 'P':
fprintf(stderr,
"Warning: -P option is deprecated; use -f -Le instead\n");
dofork = 0;
snmp_enable_stderrlog();
break;
case 's':
fprintf(stderr,
"Warning: -s option is deprecated; use -Lsd instead\n");
depmsg = 1;
#ifdef WIN32
snmp_enable_syslog_ident(app_name_long, Facility);
#else
snmp_enable_syslog_ident(app_name, Facility);
#endif
break;
case 't':
SyslogTrap++;
break;
#if HAVE_UNISTD_H
case 'u':
if (optarg != NULL) {
char *ecp;
uid = strtoul(optarg, &ecp, 10);
if (*ecp) {
#if HAVE_GETPWNAM && HAVE_PWD_H
struct passwd *info;
info = getpwnam(optarg);
if (info) {
uid = info->pw_uid;
} else {
#endif
fprintf(stderr, "Bad user id: %s\n", optarg);
exit(1);
#if HAVE_GETPWNAM && HAVE_PWD_H
}
#endif
}
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID, uid);
} else {
usage();
exit(1);
}
break;
#endif
case 'v':
version();
exit(0);
break;
case 'x':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_X_SOCKET, optarg);
} else {
usage();
exit(1);
}
break;
default:
fprintf(stderr, "invalid option: -%c\n", arg);
usage();
exit(1);
break;
}
}
if (optind < argc) {
/*
* There are optional transport addresses on the command line.
*/
for (i = optind; i < argc; i++) {
char *astring;
if (listen_ports != NULL) {
astring = malloc(strlen(listen_ports) + 2 + strlen(argv[i]));
if (astring == NULL) {
fprintf(stderr, "malloc failure processing argv[%d]\n", i);
exit(1);
}
sprintf(astring, "%s,%s", listen_ports, argv[i]);
free(listen_ports);
listen_ports = astring;
} else {
listen_ports = strdup(argv[i]);
if (listen_ports == NULL) {
fprintf(stderr, "malloc failure processing argv[%d]\n", i);
exit(1);
}
}
}
}
SOCK_STARTUP;
/*
* I'm being lazy here, and not checking the
* return value from these registration calls.
* Don't try this at home, children!
*/
if (0 == snmp_get_do_logging()) {
traph = netsnmp_add_global_traphandler(NETSNMPTRAPD_PRE_HANDLER,
syslog_handler);
traph->authtypes = TRAP_AUTH_LOG;
snmp_enable_syslog();
} else {
traph = netsnmp_add_global_traphandler(NETSNMPTRAPD_PRE_HANDLER,
print_handler);
traph->authtypes = TRAP_AUTH_LOG;
}
if (Event) {
traph = netsnmp_add_traphandler(event_handler, risingAlarm,
OID_LENGTH(risingAlarm));
traph->authtypes = TRAP_AUTH_LOG;
traph = netsnmp_add_traphandler(event_handler, fallingAlarm,
OID_LENGTH(fallingAlarm));
traph->authtypes = TRAP_AUTH_LOG;
traph = netsnmp_add_traphandler(event_handler, unavailableAlarm,
OID_LENGTH(unavailableAlarm));
traph->authtypes = TRAP_AUTH_LOG;
/* XXX - might be worth setting some "magic data"
* in the traphandler structure that 'event_handler'
* can use to avoid checking the trap OID values.
*/
}
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
/*
* we're an agentx subagent?
*/
if (agentx_subagent) {
/*
* make us a agentx client.
*/
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, 1);
}
#endif
/*
* don't fail if we can't do agentx (ie, socket not there, or not root)
*/
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS);
/*
* ignore any warning messages.
*/
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_CONNECTION_WARNINGS);
/*
* initialize the agent library
*/
init_agent("snmptrapd");
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
/*
* initialize local modules
*/
if (agentx_subagent) {
#ifdef USING_SNMPV3_SNMPENGINE_MODULE
extern void register_snmpEngine_scalars_context(const char *);
#endif
subagent_init();
#ifdef USING_NOTIFICATION_LOG_MIB_NOTIFICATION_LOG_MODULE
/* register the notification log table */
if (should_init("notificationLogMib")) {
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_NOTIF_LOG_CTX,
"snmptrapd");
traph = netsnmp_add_global_traphandler(NETSNMPTRAPD_POST_HANDLER,
notification_handler);
traph->authtypes = TRAP_AUTH_LOG;
init_notification_log();
}
#endif
#ifdef USING_SNMPV3_SNMPENGINE_MODULE
/*
* register scalars from SNMP-FRAMEWORK-MIB::snmpEngineID group;
* allows engineID probes via the master agent under the
* snmptrapd context
*/
register_snmpEngine_scalars_context("snmptrapd");
#endif
}
#endif /* USING_AGENTX_SUBAGENT_MODULE && !NETSNMP_SNMPTRAPD_DISABLE_AGENTX */
/* register our authorization handler */
init_netsnmp_trapd_auth();
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
if (agentx_subagent) {
#ifdef USING_AGENT_NSVACMACCESSTABLE_MODULE
extern void init_register_nsVacm_context(const char *);
#endif
#ifdef USING_SNMPV3_USMUSER_MODULE
extern void init_register_usmUser_context(const char *);
/* register ourselves as having a USM user database */
init_register_usmUser_context("snmptrapd");
#endif
#ifdef USING_AGENT_NSVACMACCESSTABLE_MODULE
/* register net-snmp vacm extensions */
init_register_nsVacm_context("snmptrapd");
#endif
}
#endif
#ifdef NETSNMP_EMBEDDED_PERL
init_perl();
{
/* set the default path to load */
char init_file[SNMP_MAXBUF];
snprintf(init_file, sizeof(init_file) - 1,
"%s/%s", SNMPSHAREPATH, "snmp_perl_trapd.pl");
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PERL_INIT_FILE,
init_file);
}
#endif
/*
* Initialize the world.
*/
init_snmp("snmptrapd");
#ifdef SIGHUP
signal(SIGHUP, hup_handler);
#endif
if (trap1_fmt_str_remember) {
free_trap1_fmt();
free_trap2_fmt();
print_format1 = strdup(trap1_fmt_str_remember);
print_format2 = strdup(trap1_fmt_str_remember);
}
if (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_QUIT_IMMEDIATELY)) {
/*
* just starting up to process specific configuration and then
* shutting down immediately.
*/
netsnmp_running = 0;
}
/*
* if no logging options on command line or in conf files, use syslog
*/
if (0 == snmp_get_do_logging()) {
#ifdef WIN32
snmp_enable_syslog_ident(app_name_long, Facility);
#else
snmp_enable_syslog_ident(app_name, Facility);
#endif
}
#ifndef WIN32
/*
* fork the process to the background if we are not printing to stderr
*/
if (dofork && netsnmp_running) {
int fd;
switch (fork()) {
case -1:
fprintf(stderr, "bad fork - %s\n", strerror(errno));
_exit(1);
case 0:
/*
* become process group leader
*/
if (setsid() == -1) {
fprintf(stderr, "bad setsid - %s\n", strerror(errno));
_exit(1);
}
/*
* if we are forked, we don't want to print out to stdout or stderr
*/
fd = open("/dev/null", O_RDWR);
dup2(fd, STDIN_FILENO);
dup2(fd, STDOUT_FILENO);
dup2(fd, STDERR_FILENO);
close(fd);
break;
default:
_exit(0);
}
}
#endif /* WIN32 */
#if HAVE_GETPID
if (pid_file != NULL) {
if ((PID = fopen(pid_file, "w")) == NULL) {
snmp_log_perror("fopen");
exit(1);
}
fprintf(PID, "%d\n", (int) getpid());
fclose(PID);
free_config_pidFile();
}
#endif
snmp_log(LOG_INFO, "NET-SNMP version %s\n", netsnmp_get_version());
if (depmsg) {
snmp_log(LOG_WARNING, "-s and -S options are deprecated; use -Ls <facility> instead\n");
}
if (listen_ports)
cp = listen_ports;
else
cp = default_port;
while (cp != NULL) {
char *sep = strchr(cp, ',');
if (sep != NULL) {
*sep = 0;
}
transport = netsnmp_transport_open_server("snmptrap", cp);
if (transport == NULL) {
snmp_log(LOG_ERR, "couldn't open %s -- errno %d (\"%s\")\n",
cp, errno, strerror(errno));
snmptrapd_close_sessions(sess_list);
SOCK_CLEANUP;
exit(1);
} else {
ss = snmptrapd_add_session(transport);
if (ss == NULL) {
/*
* Shouldn't happen? We have already opened the transport
* successfully so what could have gone wrong?
*/
snmptrapd_close_sessions(sess_list);
netsnmp_transport_free(transport);
snmp_log(LOG_ERR, "couldn't open snmp - %s", strerror(errno));
SOCK_CLEANUP;
exit(1);
} else {
ss->next = sess_list;
sess_list = ss;
}
}
/*
* Process next listen address, if there is one.
*/
if (sep != NULL) {
*sep = ',';
cp = sep + 1;
} else {
cp = NULL;
}
}
/*
* ignore early sighup during startup
*/
reconfig = 0;
#if HAVE_UNISTD_H
#ifdef HAVE_SETGID
if ((gid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID)) != 0) {
DEBUGMSGTL(("snmptrapd/main", "Changing gid to %d.\n", gid));
if (setgid(gid) == -1
#ifdef HAVE_SETGROUPS
|| setgroups(1, (gid_t *)&gid) == -1
#endif
) {
snmp_log_perror("setgid failed");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
exit(1);
}
}
}
#endif
#ifdef HAVE_SETUID
if ((uid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID)) != 0) {
DEBUGMSGTL(("snmptrapd/main", "Changing uid to %d.\n", uid));
if (setuid(uid) == -1) {
snmp_log_perror("setuid failed");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
exit(1);
}
}
}
#endif
#endif
#ifdef WIN32SERVICE
trapd_status = SNMPTRAPD_RUNNING;
#endif
while (netsnmp_running) {
if (reconfig) {
/*
* If we are logging to a file, receipt of SIGHUP also
* indicates the the log file should be closed and
* re-opened. This is useful for users that want to
* rotate logs in a more predictable manner.
*/
netsnmp_logging_restart();
snmp_log(LOG_INFO, "NET-SNMP version %s restarted\n",
netsnmp_get_version());
trapd_update_config();
if (trap1_fmt_str_remember) {
free_trap1_fmt();
free_trap2_fmt();
print_format1 = strdup(trap1_fmt_str_remember);
print_format2 = strdup(trap1_fmt_str_remember);
}
reconfig = 0;
}
numfds = 0;
FD_ZERO(&readfds);
FD_ZERO(&writefds);
FD_ZERO(&exceptfds);
block = 0;
tvp = &timeout;
timerclear(tvp);
tvp->tv_sec = 5;
snmp_select_info(&numfds, &readfds, tvp, &block);
if (block == 1)
tvp = NULL; /* block without timeout */
netsnmp_external_event_info(&numfds, &readfds, &writefds, &exceptfds);
count = select(numfds, &readfds, &writefds, &exceptfds, tvp);
gettimeofday(&Now, 0);
if (count > 0) {
netsnmp_dispatch_external_events(&count, &readfds, &writefds,
&exceptfds);
/* If there are any more events after external events, then
* try SNMP events. */
if (count > 0) {
snmp_read(&readfds);
}
} else
switch (count) {
case 0:
snmp_timeout();
break;
case -1:
if (errno == EINTR)
continue;
snmp_log_perror("select");
netsnmp_running = 0;
break;
default:
fprintf(stderr, "select returned %d\n", count);
netsnmp_running = 0;
}
run_alarms();
}
if (snmp_get_do_logging()) {
struct tm *tm;
time_t timer;
time(&timer);
tm = localtime(&timer);
snmp_log(LOG_INFO,
"%.4d-%.2d-%.2d %.2d:%.2d:%.2d NET-SNMP version %s Stopped.\n",
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour,
tm->tm_min, tm->tm_sec, netsnmp_get_version());
}
snmp_log(LOG_INFO, "Stopping snmptrapd");
snmptrapd_close_sessions(sess_list);
snmp_shutdown("snmptrapd");
#ifdef WIN32SERVICE
trapd_status = SNMPTRAPD_STOPPED;
#endif
snmp_disable_log();
SOCK_CLEANUP;
return 0;
}
int
netsnmp_parse_args(int argc,
char **argv,
netsnmp_session * session, const char *localOpts,
void (*proc) (int, char *const *, int),
int flags)
{
static char *sensitive[4] = { NULL, NULL, NULL, NULL };
int arg, sp = 0, testcase = 0;
char *cp;
char *Apsz = NULL;
char *Xpsz = NULL;
char *Cpsz = NULL;
char Opts[BUF_SIZE];
int zero_sensitive = !( flags & NETSNMP_PARSE_ARGS_NOZERO );
char *backup_NETSNMP_DS_LIB_OUTPUT_PRECISION = NULL;
/*
* initialize session to default values
*/
snmp_sess_init(session);
strcpy(Opts, "Y:VhHm:M:O:I:P:D:dv:r:t:c:Z:e:E:n:u:l:x:X:a:A:p:T:-:3:s:S:L:");
if (localOpts) {
if (strlen(localOpts) + strlen(Opts) >= sizeof(Opts)) {
snmp_log(LOG_ERR, "Too many localOpts in snmp_parse_args()\n");
return -1;
}
strcat(Opts, localOpts);
}
/*
* get the options
*/
DEBUGMSGTL(("snmp_parse_args", "starting: %d/%d\n", optind, argc));
for (arg = 0; arg < argc; arg++) {
DEBUGMSGTL(("snmp_parse_args", " arg %d = %s\n", arg, argv[arg]));
}
optind = 1;
while ((arg = getopt(argc, argv, Opts)) != EOF) {
DEBUGMSGTL(("snmp_parse_args", "handling (#%d): %c\n", optind, arg));
switch (arg) {
case '-':
if (strcasecmp(optarg, "help") == 0) {
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
if (strcasecmp(optarg, "version") == 0) {
fprintf(stderr,"NET-SNMP version: %s\n",netsnmp_get_version());
return (NETSNMP_PARSE_ARGS_SUCCESS_EXIT);
}
handle_long_opt(optarg);
break;
case 'V':
fprintf(stderr, "NET-SNMP version: %s\n", netsnmp_get_version());
return (NETSNMP_PARSE_ARGS_SUCCESS_EXIT);
case 'h':
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
break;
case 'H':
init_snmp("snmpapp");
fprintf(stderr, "Configuration directives understood:\n");
read_config_print_usage(" ");
return (NETSNMP_PARSE_ARGS_SUCCESS_EXIT);
case 'Y':
netsnmp_config_remember(optarg);
break;
#ifndef NETSNMP_DISABLE_MIB_LOADING
case 'm':
setenv("MIBS", optarg, 1);
break;
case 'M':
netsnmp_get_mib_directory(); /* prepare the default directories */
netsnmp_set_mib_directory(optarg);
break;
#endif /* NETSNMP_DISABLE_MIB_LOADING */
case 'O':
cp = snmp_out_options(optarg, argc, argv);
if (cp != NULL) {
fprintf(stderr, "Unknown output option passed to -O: %c.\n",
*cp);
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
break;
case 'I':
cp = snmp_in_options(optarg, argc, argv);
if (cp != NULL) {
fprintf(stderr, "Unknown input option passed to -I: %c.\n",
*cp);
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
break;
#ifndef NETSNMP_DISABLE_MIB_LOADING
case 'P':
cp = snmp_mib_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr,
"Unknown parsing option passed to -P: %c.\n", *cp);
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
break;
#endif /* NETSNMP_DISABLE_MIB_LOADING */
case 'D':
debug_register_tokens(optarg);
snmp_set_do_debugging(1);
break;
case 'd':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DUMP_PACKET, 1);
break;
case 'v':
session->version = -1;
#ifndef NETSNMP_DISABLE_SNMPV1
if (!strcmp(optarg, "1")) {
session->version = SNMP_VERSION_1;
}
#endif
#ifndef NETSNMP_DISABLE_SNMPV2C
if (!strcasecmp(optarg, "2c")) {
session->version = SNMP_VERSION_2c;
}
#endif
if (!strcasecmp(optarg, "3")) {
session->version = SNMP_VERSION_3;
}
if (session->version == -1) {
fprintf(stderr,
"Invalid version specified after -v flag: %s\n",
optarg);
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
break;
case 'p':
fprintf(stderr, "Warning: -p option is no longer used - ");
fprintf(stderr, "specify the remote host as HOST:PORT\n");
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
break;
case 'T':
{
char leftside[SNMP_MAXBUF_MEDIUM], rightside[SNMP_MAXBUF_MEDIUM];
char *tmpcp, *tmpopt;
/* ensure we have a proper argument */
tmpopt = strdup(optarg);
tmpcp = strchr(tmpopt, '=');
if (!tmpcp) {
fprintf(stderr, "-T expects a NAME=VALUE pair.\n");
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
*tmpcp++ = '\0';
/* create the transport config container if this is the first */
if (!session->transport_configuration) {
netsnmp_container_init_list();
session->transport_configuration =
netsnmp_container_find("transport_configuration:fifo");
if (!session->transport_configuration) {
fprintf(stderr, "failed to initialize the transport configuration container\n");
free(tmpopt);
return (NETSNMP_PARSE_ARGS_ERROR);
}
session->transport_configuration->compare =
(netsnmp_container_compare*)
netsnmp_transport_config_compare;
}
/* set the config */
strlcpy(leftside, tmpopt, sizeof(leftside));
strlcpy(rightside, tmpcp, sizeof(rightside));
CONTAINER_INSERT(session->transport_configuration,
netsnmp_transport_create_config(leftside,
rightside));
free(tmpopt);
}
break;
case 't':
session->timeout = (long)(atof(optarg) * 1000000L);
if (session->timeout <= 0) {
fprintf(stderr, "Invalid timeout in seconds after -t flag.\n");
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
break;
case 'r':
session->retries = atoi(optarg);
if (session->retries < 0 || !isdigit((unsigned char)(optarg[0]))) {
fprintf(stderr, "Invalid number of retries after -r flag.\n");
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
break;
case 'c':
if (zero_sensitive) {
if ((sensitive[sp] = strdup(optarg)) != NULL) {
Cpsz = sensitive[sp];
memset(optarg, '\0', strlen(optarg));
sp++;
} else {
fprintf(stderr, "malloc failure processing -c flag.\n");
return NETSNMP_PARSE_ARGS_ERROR;
}
} else {
Cpsz = optarg;
}
break;
case '3':
/* TODO: This needs to zero things too. */
if (snmpv3_options(optarg, session, &Apsz, &Xpsz, argc, argv) < 0){
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
break;
case 'L':
if (snmp_log_options(optarg, argc, argv) < 0) {
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
break;
#define SNMPV3_CMD_OPTIONS
#ifdef SNMPV3_CMD_OPTIONS
case 'Z':
errno = 0;
session->engineBoots = strtoul(optarg, &cp, 10);
if (errno || cp == optarg) {
fprintf(stderr, "Need engine boots value after -Z flag.\n");
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
if (*cp == ',') {
char *endptr;
cp++;
session->engineTime = strtoul(cp, &endptr, 10);
if (errno || cp == endptr) {
fprintf(stderr, "Need engine time after \"-Z engineBoot,\".\n");
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
}
/*
* Handle previous '-Z boot time' syntax
*/
else if (optind < argc) {
session->engineTime = strtoul(argv[optind], &cp, 10);
if (errno || cp == argv[optind]) {
fprintf(stderr, "Need engine time after \"-Z engineBoot\".\n");
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
} else {
fprintf(stderr, "Need engine time after \"-Z engineBoot\".\n");
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
break;
case 'e':{
size_t ebuf_len = 32, eout_len = 0;
u_char *ebuf = (u_char *)malloc(ebuf_len);
if (ebuf == NULL) {
fprintf(stderr, "malloc failure processing -e flag.\n");
return (NETSNMP_PARSE_ARGS_ERROR);
}
if (!snmp_hex_to_binary
(&ebuf, &ebuf_len, &eout_len, 1, optarg)) {
fprintf(stderr, "Bad engine ID value after -e flag.\n");
free(ebuf);
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
if ((eout_len < 5) || (eout_len > 32)) {
fprintf(stderr, "Invalid engine ID value after -e flag.\n");
free(ebuf);
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
session->securityEngineID = ebuf;
session->securityEngineIDLen = eout_len;
break;
}
case 'E':{
size_t ebuf_len = 32, eout_len = 0;
u_char *ebuf = (u_char *)malloc(ebuf_len);
if (ebuf == NULL) {
fprintf(stderr, "malloc failure processing -E flag.\n");
return (NETSNMP_PARSE_ARGS_ERROR);
}
if (!snmp_hex_to_binary(&ebuf, &ebuf_len,
&eout_len, 1, optarg)) {
fprintf(stderr, "Bad engine ID value after -E flag.\n");
free(ebuf);
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
if ((eout_len < 5) || (eout_len > 32)) {
fprintf(stderr, "Invalid engine ID value after -E flag.\n");
free(ebuf);
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
session->contextEngineID = ebuf;
session->contextEngineIDLen = eout_len;
break;
}
case 'n':
session->contextName = optarg;
session->contextNameLen = strlen(optarg);
break;
case 'u':
if (zero_sensitive) {
if ((sensitive[sp] = strdup(optarg)) != NULL) {
session->securityName = sensitive[sp];
session->securityNameLen = strlen(sensitive[sp]);
memset(optarg, '\0', strlen(optarg));
sp++;
} else {
fprintf(stderr, "malloc failure processing -u flag.\n");
return NETSNMP_PARSE_ARGS_ERROR;
}
} else {
session->securityName = optarg;
session->securityNameLen = strlen(optarg);
}
break;
case 'l':
if (!strcasecmp(optarg, "noAuthNoPriv") || !strcmp(optarg, "1")
|| !strcasecmp(optarg, "noauth")
|| !strcasecmp(optarg, "nanp")) {
session->securityLevel = SNMP_SEC_LEVEL_NOAUTH;
} else if (!strcasecmp(optarg, "authNoPriv")
|| !strcmp(optarg, "2")
|| !strcasecmp(optarg, "auth")
|| !strcasecmp(optarg, "anp")) {
session->securityLevel = SNMP_SEC_LEVEL_AUTHNOPRIV;
} else if (!strcasecmp(optarg, "authPriv")
|| !strcmp(optarg, "3")
|| !strcasecmp(optarg, "priv")
|| !strcasecmp(optarg, "ap")) {
session->securityLevel = SNMP_SEC_LEVEL_AUTHPRIV;
} else {
fprintf(stderr,
"Invalid security level specified after -l flag: %s\n",
optarg);
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
break;
#ifdef NETSNMP_SECMOD_USM
case 'a':
#ifndef NETSNMP_DISABLE_MD5
if (!strcasecmp(optarg, "MD5")) {
session->securityAuthProto = usmHMACMD5AuthProtocol;
session->securityAuthProtoLen = USM_AUTH_PROTO_MD5_LEN;
} else
#endif
if (!strcasecmp(optarg, "SHA")) {
session->securityAuthProto = usmHMACSHA1AuthProtocol;
session->securityAuthProtoLen = USM_AUTH_PROTO_SHA_LEN;
} else {
fprintf(stderr,
"Invalid authentication protocol specified after -a flag: %s\n",
optarg);
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
break;
case 'x':
testcase = 0;
#ifndef NETSNMP_DISABLE_DES
if (!strcasecmp(optarg, "DES")) {
testcase = 1;
session->securityPrivProto = usmDESPrivProtocol;
session->securityPrivProtoLen = USM_PRIV_PROTO_DES_LEN;
}
#endif
#ifdef HAVE_AES
if (!strcasecmp(optarg, "AES128") ||
!strcasecmp(optarg, "AES")) {
testcase = 1;
session->securityPrivProto = usmAESPrivProtocol;
session->securityPrivProtoLen = USM_PRIV_PROTO_AES_LEN;
}
#endif
if (testcase == 0) {
fprintf(stderr,
"Invalid privacy protocol specified after -x flag: %s\n",
optarg);
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
break;
case 'A':
if (zero_sensitive) {
if ((sensitive[sp] = strdup(optarg)) != NULL) {
Apsz = sensitive[sp];
memset(optarg, '\0', strlen(optarg));
sp++;
} else {
fprintf(stderr, "malloc failure processing -A flag.\n");
return NETSNMP_PARSE_ARGS_ERROR;
}
} else {
Apsz = optarg;
}
break;
case 'X':
if (zero_sensitive) {
if ((sensitive[sp] = strdup(optarg)) != NULL) {
Xpsz = sensitive[sp];
memset(optarg, '\0', strlen(optarg));
sp++;
} else {
fprintf(stderr, "malloc failure processing -X flag.\n");
return NETSNMP_PARSE_ARGS_ERROR;
}
} else {
Xpsz = optarg;
}
break;
#endif /* SNMPV3_CMD_OPTIONS */
#endif /* NETSNMP_SECMOD_USM */
case '?':
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
break;
default:
proc(argc, argv, arg);
break;
}
}
DEBUGMSGTL(("snmp_parse_args", "finished: %d/%d\n", optind, argc));
/*
* save command line parameters which should have precedence above config file settings
* (There ought to be a more scalable approach than this....)
*/
if (netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_OUTPUT_PRECISION)) {
backup_NETSNMP_DS_LIB_OUTPUT_PRECISION =
strdup(netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_OUTPUT_PRECISION));
}
/*
* read in MIB database and initialize the snmp library, read the config file
*/
init_snmp("snmpapp");
/*
* restore command line parameters which should have precedence above config file settings
*/
if(backup_NETSNMP_DS_LIB_OUTPUT_PRECISION) {
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_OUTPUT_PRECISION, backup_NETSNMP_DS_LIB_OUTPUT_PRECISION);
free(backup_NETSNMP_DS_LIB_OUTPUT_PRECISION);
}
/*
* session default version
*/
if (session->version == SNMP_DEFAULT_VERSION) {
/*
* run time default version
*/
session->version = netsnmp_ds_get_int(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_SNMPVERSION);
/*
* compile time default version
*/
if (!session->version) {
switch (NETSNMP_DEFAULT_SNMP_VERSION) {
#ifndef NETSNMP_DISABLE_SNMPV1
case 1:
session->version = SNMP_VERSION_1;
break;
#endif
#ifndef NETSNMP_DISABLE_SNMPV2C
case 2:
session->version = SNMP_VERSION_2c;
break;
#endif
case 3:
session->version = SNMP_VERSION_3;
break;
default:
snmp_log(LOG_ERR, "Can't determine a valid SNMP version for the session\n");
return(NETSNMP_PARSE_ARGS_ERROR);
}
} else {
#ifndef NETSNMP_DISABLE_SNMPV1
if (session->version == NETSNMP_DS_SNMP_VERSION_1) /* bogus value. version 1 actually = 0 */
session->version = SNMP_VERSION_1;
#endif
}
}
#ifdef NETSNMP_SECMOD_USM
/* XXX: this should ideally be moved to snmpusm.c somehow */
/*
* make master key from pass phrases
*/
if (Apsz) {
session->securityAuthKeyLen = USM_AUTH_KU_LEN;
if (session->securityAuthProto == NULL) {
/*
* get .conf set default
*/
const oid *def =
get_default_authtype(&session->securityAuthProtoLen);
session->securityAuthProto =
snmp_duplicate_objid(def, session->securityAuthProtoLen);
}
if (session->securityAuthProto == NULL) {
#ifndef NETSNMP_DISABLE_MD5
/*
* assume MD5
*/
session->securityAuthProto =
snmp_duplicate_objid(usmHMACMD5AuthProtocol,
USM_AUTH_PROTO_MD5_LEN);
session->securityAuthProtoLen = USM_AUTH_PROTO_MD5_LEN;
#else
session->securityAuthProto =
snmp_duplicate_objid(usmHMACSHA1AuthProtocol,
USM_AUTH_PROTO_SHA_LEN);
session->securityAuthProtoLen = USM_AUTH_PROTO_SHA_LEN;
#endif
}
if (generate_Ku(session->securityAuthProto,
session->securityAuthProtoLen,
(u_char *) Apsz, strlen(Apsz),
session->securityAuthKey,
&session->securityAuthKeyLen) != SNMPERR_SUCCESS) {
snmp_perror(argv[0]);
fprintf(stderr,
"Error generating a key (Ku) from the supplied authentication pass phrase. \n");
return (NETSNMP_PARSE_ARGS_ERROR);
}
}
if (Xpsz) {
session->securityPrivKeyLen = USM_PRIV_KU_LEN;
if (session->securityPrivProto == NULL) {
/*
* get .conf set default
*/
const oid *def =
get_default_privtype(&session->securityPrivProtoLen);
session->securityPrivProto =
snmp_duplicate_objid(def, session->securityPrivProtoLen);
}
if (session->securityPrivProto == NULL) {
/*
* assume DES
*/
#ifndef NETSNMP_DISABLE_DES
session->securityPrivProto =
snmp_duplicate_objid(usmDESPrivProtocol,
USM_PRIV_PROTO_DES_LEN);
session->securityPrivProtoLen = USM_PRIV_PROTO_DES_LEN;
#else
session->securityPrivProto =
snmp_duplicate_objid(usmAESPrivProtocol,
USM_PRIV_PROTO_AES_LEN);
session->securityPrivProtoLen = USM_PRIV_PROTO_AES_LEN;
#endif
}
if (generate_Ku(session->securityAuthProto,
session->securityAuthProtoLen,
(u_char *) Xpsz, strlen(Xpsz),
session->securityPrivKey,
&session->securityPrivKeyLen) != SNMPERR_SUCCESS) {
snmp_perror(argv[0]);
fprintf(stderr,
"Error generating a key (Ku) from the supplied privacy pass phrase. \n");
return (NETSNMP_PARSE_ARGS_ERROR);
}
}
#endif /* NETSNMP_SECMOD_USM */
/*
* get the hostname
*/
if (optind == argc) {
fprintf(stderr, "No hostname specified.\n");
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
session->peername = argv[optind++]; /* hostname */
#if !defined(NETSNMP_DISABLE_SNMPV1) || !defined(NETSNMP_DISABLE_SNMPV2C)
/*
* If v1 or v2c, check community has been set, either by a -c option above,
* or via a default token somewhere.
* If neither, it will be taken from the incoming request PDU.
*/
#if defined(NETSNMP_DISABLE_SNMPV1)
if (session->version == SNMP_VERSION_2c)
#else
#if defined(NETSNMP_DISABLE_SNMPV2C)
if (session->version == SNMP_VERSION_1)
#else
if (session->version == SNMP_VERSION_1 ||
session->version == SNMP_VERSION_2c)
#endif
#endif
{
if (Cpsz == NULL) {
Cpsz = netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_COMMUNITY);
if (Cpsz == NULL) {
if (netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_IGNORE_NO_COMMUNITY)){
DEBUGMSGTL(("snmp_parse_args",
"ignoring that the community string is not present\n"));
session->community = NULL;
session->community_len = 0;
} else {
fprintf(stderr, "No community name specified.\n");
return (NETSNMP_PARSE_ARGS_ERROR_USAGE);
}
}
} else {
session->community = (unsigned char *)Cpsz;
session->community_len = strlen(Cpsz);
}
}
#endif /* support for community based SNMP */
return optind;
}
int
main(int argc, char *argv[])
{
int arg;
char *prognam;
char *cp = NULL;
const char* sysUpTime = NULL;
/* initialize tcpip, if necessary */
SOCK_STARTUP;
prognam = strrchr(argv[0], '/');
if (prognam)
++prognam;
else
prognam = argv[0];
putenv(strdup("POSIXLY_CORRECT=1"));
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DISABLE_PERSISTENT_LOAD, 1);
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DISABLE_PERSISTENT_SAVE, 1);
while ((arg = getopt(argc, argv, ":Vhm:M:D:dP:L:U:c:x:")) != -1) {
switch (arg) {
case 'h':
usage(prognam);
result = 0;
goto out;
case 'm':
setenv("MIBS", optarg, 1);
break;
case 'M':
setenv("MIBDIRS", optarg, 1);
break;
case 'c':
context = optarg;
contextLen = strlen(context);
break;
case 'D':
debug_register_tokens(optarg);
snmp_set_do_debugging(1);
break;
case 'd':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DUMP_PACKET, 1);
break;
case 'U':
sysUpTime = optarg;
break;
case 'V':
fprintf(stderr, "NET-SNMP version: %s\n", netsnmp_get_version());
result = 0;
goto out;
#ifndef DISABLE_MIB_LOADING
case 'P':
cp = snmp_mib_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr, "Unknown parser option to -P: %c.\n", *cp);
usage(prognam);
goto out;
}
break;
#endif /* DISABLE_MIB_LOADING */
case 'L':
if (snmp_log_options(optarg, argc, argv) < 0)
goto out;
break;
case 'x':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_X_SOCKET, optarg);
} else
usage(argv[0]);
break;
case ':':
fprintf(stderr, "Option -%c requires an operand\n", optopt);
usage(prognam);
goto out;
case '?':
fprintf(stderr, "Unrecognized option: -%c\n", optopt);
usage(prognam);
goto out;
}
}
arg = optind;
init_snmp(NETSNMP_APPLICATION_CONFIG_TYPE);
agentx_config_init();
/* NOTIFY varlist */
pdu = pdu_create_opt_context(AGENTX_MSG_NOTIFY, context, contextLen);
if (sysUpTime)
snmp_add_var(pdu, sysuptime_oid, sysuptime_oid_len, 't', sysUpTime);
if (arg == argc) {
fprintf(stderr, "Missing trap-oid parameter\n");
usage(prognam);
goto out;
}
if (snmp_add_var(pdu, snmptrap_oid, snmptrap_oid_len, 'o', argv[arg])) {
snmp_perror(argv[arg]);
goto out;
}
++arg;
while (arg < argc) {
oid name[MAX_OID_LEN];
size_t name_length = MAX_OID_LEN;
arg += 3;
if (arg > argc) {
fprintf(stderr, "%s: Missing type/value for variable\n",
argv[arg - 3]);
goto out;
}
if (!snmp_parse_oid(argv[arg - 3], name, &name_length)) {
snmp_perror(argv[arg - 3]);
goto out;
}
if (snmp_add_var(pdu, name, name_length, argv[arg - 2][0],
argv[arg - 1]) != 0) {
snmp_perror(argv[arg - 3]);
goto out;
}
}
packetid = 0;
state = &Connecting;
next_state = NULL;
if(state->entry) state->entry(state);
/* main loop here... */
for(;;) {
int block = 1;
int numfds = 0;
int count;
fd_set fdset;
struct timeval timeout;
while(next_state) {
if(state->exit) state->exit(state);
DEBUGMSGTL(("process", "State transition: %s -> %s\n",
state->name, next_state->name));
state = next_state;
next_state = NULL;
if(state->entry) state->entry(state);
}
if(state == &Exit)
break;
FD_ZERO(&fdset);
snmp_sess_select_info(sessp, &numfds, &fdset, &timeout, &block);
count = select(numfds, &fdset, NULL, NULL, !block ? &timeout : NULL);
if (count > 0)
snmp_sess_read(sessp, &fdset);
else if (count == 0)
snmp_sess_timeout(sessp);
else if (errno != EINTR) {
snmp_log(LOG_ERR, "select error [%s]\n", strerror(errno));
change_state(&Exit);
}
}
/* at shutdown time */
snmp_free_pdu(pdu);
pdu = NULL;
snmp_shutdown(NETSNMP_APPLICATION_CONFIG_TYPE);
out:
SOCK_CLEANUP;
return result;
}
static void
usage(char *prog)
{
#ifdef WIN32SERVICE
printf("\nUsage: %s [-register] [-quiet] [OPTIONS] [LISTENING ADDRESSES]"
"\n %s [-unregister] [-quiet]", prog, prog);
#else
printf("\nUsage: %s [OPTIONS] [LISTENING ADDRESSES]", prog);
#endif
printf("\n"
"\n\tVersion: %s\n%s"
"\t\t\t (config search path: %s)\n%s%s",
netsnmp_get_version(),
"\tWeb: http://www.net-snmp.org/\n"
"\tEmail: [email protected]\n"
"\n -a\t\t\tlog addresses\n"
" -A\t\t\tappend to the logfile rather than truncating it\n"
" -c FILE[,...]\t\tread FILE(s) as configuration file(s)\n"
" -C\t\t\tdo not read the default configuration files\n",
get_configuration_directory(),
" -d\t\t\tdump sent and received SNMP packets\n"
" -D[TOKEN[,...]]\tturn on debugging output for the given TOKEN(s)\n"
"\t\t\t (try ALL for extremely verbose output)\n"
"\t\t\t Don't put space(s) between -D and TOKEN(s).\n"
" -f\t\t\tdo not fork from the shell\n",
#if HAVE_UNISTD_H
" -g GID\t\tchange to this numeric gid after opening\n"
"\t\t\t transport endpoints\n"
#endif
" -h, --help\t\tdisplay this usage message\n"
" -H\t\t\tdisplay configuration file directives understood\n"
" -I [-]INITLIST\tlist of mib modules to initialize (or not)\n"
"\t\t\t (run snmpd with -Dmib_init for a list)\n"
" -L <LOGOPTS>\t\ttoggle options controlling where to log to\n");
snmp_log_options_usage("\t", stdout);
printf(" -m MIBLIST\t\tuse MIBLIST instead of the default MIB list\n"
" -M DIRLIST\t\tuse DIRLIST as the list of locations to look for MIBs\n"
"\t\t\t (default %s)\n%s%s",
#ifndef NETSNMP_DISABLE_MIB_LOADING
netsnmp_get_mib_directory(),
#else
"MIBs not loaded",
#endif
" -p FILE\t\tstore process id in FILE\n"
" -q\t\t\tprint information in a more parsable format\n"
" -r\t\t\tdo not exit if files only accessible to root\n"
"\t\t\t cannot be opened\n"
#ifdef WIN32SERVICE
" -register\t\tregister as a Windows service\n"
" \t\t\t (followed by -quiet to prevent message popups)\n"
" \t\t\t (followed by the startup parameter list)\n"
" \t\t\t Note that some parameters are not relevant when running as a service\n"
#endif
#if HAVE_UNISTD_H
" -u UID\t\tchange to this uid (numeric or textual) after\n"
"\t\t\t opening transport endpoints\n"
#endif
#ifdef WIN32SERVICE
" -unregister\t\tunregister as a Windows service\n"
" \t\t\t (followed -quiet to prevent message popups)\n"
#endif
" -v, --version\t\tdisplay version information\n"
" -V\t\t\tverbose display\n"
#if defined(USING_AGENTX_SUBAGENT_MODULE)|| defined(USING_AGENTX_MASTER_MODULE)
" -x ADDRESS\t\tuse ADDRESS as AgentX address\n"
#endif
#ifdef USING_AGENTX_SUBAGENT_MODULE
" -X\t\t\trun as an AgentX subagent rather than as an\n"
"\t\t\t SNMP master agent\n"
#endif
,
"\nDeprecated options:\n"
" -l FILE\t\tuse -Lf <FILE> instead\n"
" -P\t\t\tuse -p instead\n"
" -s\t\t\tuse -Lsd instead\n"
" -S d|i|0-7\t\tuse -Ls <facility> instead\n"
"\n"
);
exit(1);
}
u_char *
var_extensible_version(struct variable *vp,
oid * name,
size_t * length,
int exact,
size_t * var_len, WriteMethod ** write_method)
{
static long long_ret;
static char errmsg[300];
char *cptr;
time_t curtime;
#ifdef CONFIGURE_OPTIONS
static char config_opts[] = CONFIGURE_OPTIONS;
#endif
DEBUGMSGTL(("ucd-snmp/versioninfo", "var_extensible_version: "));
DEBUGMSGOID(("ucd-snmp/versioninfo", name, *length));
DEBUGMSG(("ucd-snmp/versioninfo", " %d\n", exact));
if (header_generic(vp, name, length, exact, var_len, write_method))
return (NULL);
switch (vp->magic) {
case MIBINDEX:
long_ret = name[8];
return ((u_char *) (&long_ret));
case VERTAG:
sprintf(errmsg, netsnmp_get_version());
*var_len = strlen(errmsg);
return ((u_char *) errmsg);
case VERDATE:
sprintf(errmsg, "$Date: 2004/01/27 17:24:26 $");
*var_len = strlen(errmsg);
return ((u_char *) errmsg);
case VERCDATE:
curtime = time(NULL);
cptr = ctime(&curtime);
sprintf(errmsg, cptr);
*var_len = strlen(errmsg) - 1;
return ((u_char *) errmsg);
case VERIDENT:
sprintf(errmsg,
"$Id: versioninfo.c,v 5.2 2004/01/27 17:24:26 slif Exp $");
*var_len = strlen(errmsg);
return ((u_char *) errmsg);
case VERCONFIG:
#ifdef CONFIGURE_OPTIONS
*var_len = strlen(config_opts);
if (*var_len > 1024)
*var_len = 1024; /* mib imposed restriction */
return (u_char *) config_opts;
#else
sprintf(errmsg, "");
*var_len = strlen(errmsg);
return ((u_char *) errmsg);
#endif
case VERCLEARCACHE:
*write_method = clear_cache;
long_ret = 0;
return ((u_char *) & long_ret);
case VERUPDATECONFIG:
*write_method = update_hook;
long_ret = 0;
return ((u_char *) & long_ret);
case VERRESTARTAGENT:
*write_method = restart_hook;
long_ret = 0;
return ((u_char *) & long_ret);
case VERSAVEPERSISTENT:
*write_method = save_persistent;
long_ret = 0;
return ((u_char *) & long_ret);
case VERDEBUGGING:
*write_method = debugging_hook;
long_ret = snmp_get_do_debugging();
return ((u_char *) & long_ret);
}
return NULL;
}
int
main(int argc, char *argv[])
{
int arg;
char *current_name = NULL, *cp = NULL;
oid name[MAX_OID_LEN];
size_t name_length;
int description = 0;
int print = 0;
int find_all = 0;
int width = 1000000;
/*
* usage: snmptranslate name
*/
while ((arg = getopt(argc, argv, "Vhm:M:w:D:P:T:O:I:L:")) != EOF) {
switch (arg) {
case 'h':
usage();
exit(1);
case 'm':
setenv("MIBS", optarg, 1);
break;
case 'M':
setenv("MIBDIRS", optarg, 1);
break;
case 'D':
debug_register_tokens(optarg);
snmp_set_do_debugging(1);
break;
case 'V':
fprintf(stderr, "NET-SNMP version: %s\n",
netsnmp_get_version());
exit(0);
break;
case 'w':
width = atoi(optarg);
if (width <= 0) {
fprintf(stderr, "Invalid width specification: %s\n", optarg);
exit (1);
}
break;
#ifndef NETSNMP_DISABLE_MIB_LOADING
case 'P':
cp = snmp_mib_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr, "Unknown parser option to -P: %c.\n", *cp);
usage();
exit(1);
}
break;
#endif /* NETSNMP_DISABLE_MIB_LOADING */
case 'O':
cp = snmp_out_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr, "Unknown OID option to -O: %c.\n", *cp);
usage();
exit(1);
}
break;
case 'I':
cp = snmp_in_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr, "Unknown OID option to -I: %c.\n", *cp);
usage();
exit(1);
}
break;
case 'T':
for (cp = optarg; *cp; cp++) {
switch (*cp) {
#ifndef NETSNMP_DISABLE_MIB_LOADING
case 'l':
print = 3;
print_oid_report_enable_labeledoid();
break;
case 'o':
print = 3;
print_oid_report_enable_oid();
break;
case 's':
print = 3;
print_oid_report_enable_symbolic();
break;
case 't':
print = 3;
print_oid_report_enable_suffix();
break;
case 'z':
print = 3;
print_oid_report_enable_mibchildoid();
break;
#endif /* NETSNMP_DISABLE_MIB_LOADING */
case 'd':
description = 1;
snmp_set_save_descriptions(1);
break;
case 'B':
find_all = 1;
break;
case 'p':
print = 1;
break;
case 'a':
print = 2;
break;
default:
fprintf(stderr, "Invalid -T<lostpad> character: %c\n",
*cp);
usage();
exit(1);
break;
}
}
break;
case 'L':
if (snmp_log_options(optarg, argc, argv) < 0) {
return (-1);
}
break;
default:
fprintf(stderr, "invalid option: -%c\n", arg);
usage();
exit(1);
break;
}
}
init_snmp("snmpapp");
if (optind < argc)
current_name = argv[optind];
if (current_name == NULL) {
switch (print) {
default:
usage();
exit(1);
#ifndef NETSNMP_DISABLE_MIB_LOADING
case 1:
print_mib_tree(stdout, get_tree_head(), width);
break;
case 2:
print_ascii_dump(stdout);
break;
case 3:
print_oid_report(stdout);
break;
#endif /* NETSNMP_DISABLE_MIB_LOADING */
}
exit(0);
}
do {
name_length = MAX_OID_LEN;
if (snmp_get_random_access()) {
#ifndef NETSNMP_DISABLE_MIB_LOADING
if (!get_node(current_name, name, &name_length)) {
#endif /* NETSNMP_DISABLE_MIB_LOADING */
fprintf(stderr, "Unknown object identifier: %s\n",
current_name);
exit(2);
#ifndef NETSNMP_DISABLE_MIB_LOADING
}
#endif /* NETSNMP_DISABLE_MIB_LOADING */
} else if (find_all) {
if (0 == show_all_matched_objects(stdout, current_name,
name, &name_length,
description, width)) {
fprintf(stderr,
"Unable to find a matching object identifier for \"%s\"\n",
current_name);
exit(1);
}
exit(0);
} else if (netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_REGEX_ACCESS)) {
#ifndef NETSNMP_DISABLE_MIB_LOADING
if (0 == get_wild_node(current_name, name, &name_length)) {
#endif /* NETSNMP_DISABLE_MIB_LOADING */
fprintf(stderr,
"Unable to find a matching object identifier for \"%s\"\n",
current_name);
exit(1);
#ifndef NETSNMP_DISABLE_MIB_LOADING
}
#endif /* NETSNMP_DISABLE_MIB_LOADING */
} else {
if (!read_objid(current_name, name, &name_length)) {
snmp_perror(current_name);
exit(2);
}
}
if (print == 1) {
#ifndef NETSNMP_DISABLE_MIB_LOADING
struct tree *tp;
tp = get_tree(name, name_length, get_tree_head());
if (tp == NULL) {
#endif /* NETSNMP_DISABLE_MIB_LOADING */
snmp_log(LOG_ERR,
"Unable to find a matching object identifier for \"%s\"\n",
current_name);
exit(1);
#ifndef NETSNMP_DISABLE_MIB_LOADING
}
print_mib_tree(stdout, tp, width);
#endif /* NETSNMP_DISABLE_MIB_LOADING */
} else {
print_objid(name, name_length);
if (description) {
#ifndef NETSNMP_DISABLE_MIB_LOADING
print_description(name, name_length, width);
#endif /* NETSNMP_DISABLE_MIB_LOADING */
}
}
current_name = argv[++optind];
if (current_name != NULL)
printf("\n");
} while (optind < argc);
return (0);
}
void
usage(void)
{
#ifdef WIN32SERVICE
fprintf(stderr, "\nUsage: snmptrapd [-register] [-quiet] [OPTIONS] [LISTENING ADDRESSES]");
fprintf(stderr, "\n snmptrapd [-unregister] [-quiet]");
#else
fprintf(stderr, "Usage: snmptrapd [OPTIONS] [LISTENING ADDRESSES]\n");
#endif
fprintf(stderr, "\n\tNET-SNMP Version: %s\n", netsnmp_get_version());
fprintf(stderr, "\tWeb: http://www.net-snmp.org/\n");
fprintf(stderr, "\tEmail: [email protected]\n");
fprintf(stderr, "\n");
fprintf(stderr, " -a\t\t\tignore authentication failure traps\n");
fprintf(stderr, " -c FILE\t\tread FILE as a configuration file\n");
fprintf(stderr,
" -C\t\t\tdo not read the default configuration files\n");
fprintf(stderr, " -d\t\t\tdump sent and received SNMP packets\n");
fprintf(stderr, " -D\t\t\tturn on debugging output\n");
fprintf(stderr,
" -e\t\t\tprint event # (rising/falling alarm, etc.)\n");
fprintf(stderr, " -f\t\t\tdo not fork from the shell\n");
fprintf(stderr,
" -F FORMAT\t\tuse specified format for logging to standard error\n");
fprintf(stderr, " -h, --help\t\tdisplay this usage message\n");
fprintf(stderr,
" -H\t\t\tdisplay configuration file directives understood\n");
fprintf(stderr,
" -m MIBLIST\t\tuse MIBLIST instead of the default MIB list\n");
fprintf(stderr,
" -M DIRLIST\t\tuse DIRLIST as the list of locations\n\t\t\t to look for MIBs\n");
fprintf(stderr,
" -n\t\t\tuse numeric addresses instead of attempting\n\t\t\t hostname lookups (no DNS)\n");
#if HAVE_GETPID
fprintf(stderr, " -p FILE\t\tstore process id in FILE\n");
#endif
#ifdef WIN32SERVICE
fprintf(stderr, " -register\t\tregister as a Windows service\n");
fprintf(stderr, " \t\t\t (followed by -quiet to prevent message popups)\n");
fprintf(stderr, " \t\t\t (followed by the startup parameter list)\n");
fprintf(stderr, " \t\t\t Note that some parameters are not relevant when running as a service\n");
#endif
fprintf(stderr, " -t\t\t\tPrevent traps from being logged to syslog\n");
#ifdef WIN32SERVICE
fprintf(stderr, " -unregister\t\tunregister as a Windows service\n");
fprintf(stderr, " \t\t\t (followed -quiet to prevent message popups)\n");
#endif
fprintf(stderr, " -v, --version\t\tdisplay version information\n");
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(SNMPTRAPD_DISABLE_AGENTX)
fprintf(stderr, " -x ADDRESS\t\tuse ADDRESS as AgentX address\n");
#endif
fprintf(stderr,
" -O <OUTOPTS>\t\ttoggle options controlling output display\n");
snmp_out_toggle_options_usage("\t\t\t", stderr);
fprintf(stderr,
" -L <LOGOPTS>\t\ttoggle options controlling where to log to\n");
snmp_log_options_usage("\t\t\t", stderr);
fprintf(stderr, "\n Deprecated options:\n");
fprintf(stderr, " -o FILE\t\tuse -Lf <FILE> instead\n");
fprintf(stderr, " -P\t\t\tuse -f -Le instead\n");
fprintf(stderr, " -s\t\t\tuse -Lsd instead\n");
fprintf(stderr, " -S d|i|0-7\t\tuse -Ls <facility> instead\n");
fprintf(stderr, " -u FILE\t\tuse -p <FILE> instead\n");
}
/*
* Open a session to the master agent.
*/
int
subagent_open_master_session(void)
{
netsnmp_transport *t;
netsnmp_session sess;
DEBUGMSGTL(("agentx/subagent", "opening session...\n"));
if (main_session) {
snmp_log(LOG_WARNING,
"AgentX session to master agent attempted to be re-opened.");
return -1;
}
snmp_sess_init(&sess);
sess.version = AGENTX_VERSION_1;
sess.retries = SNMP_DEFAULT_RETRIES;
sess.timeout = SNMP_DEFAULT_TIMEOUT;
sess.flags |= SNMP_FLAGS_STREAM_SOCKET;
sess.callback = handle_agentx_packet;
sess.authenticator = NULL;
t = netsnmp_transport_open_client(
"agentx", netsnmp_ds_get_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_X_SOCKET));
if (t == NULL) {
/*
* Diagnose snmp_open errors with the input
* netsnmp_session pointer.
*/
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_CONNECTION_WARNINGS)) {
char buf[1024];
const char *socket =
netsnmp_ds_get_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_X_SOCKET);
snprintf(buf, sizeof(buf), "Warning: "
"Failed to connect to the agentx master agent (%s)",
socket ? socket : "[NIL]");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
netsnmp_sess_log_error(LOG_WARNING, buf, &sess);
} else {
snmp_sess_perror(buf, &sess);
}
}
return -1;
}
main_session =
snmp_add_full(&sess, t, NULL, agentx_parse, NULL, NULL,
agentx_realloc_build, agentx_check_packet, NULL);
if (main_session == NULL) {
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_CONNECTION_WARNINGS)) {
char buf[1024];
snprintf(buf, sizeof(buf), "Error: "
"Failed to create the agentx master agent session (%s)",
netsnmp_ds_get_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_X_SOCKET));
snmp_sess_perror(buf, &sess);
}
netsnmp_transport_free(t);
return -1;
}
/*
* I don't know why 1 is success instead of the usual 0 = noerr,
* but that's what the function returns.
*/
if (1 != agentx_open_session(main_session)) {
snmp_close(main_session);
main_session = NULL;
return -1;
}
if (add_trap_session(main_session, AGENTX_MSG_NOTIFY, 1,
AGENTX_VERSION_1)) {
DEBUGMSGTL(("agentx/subagent", " trap session registered OK\n"));
} else {
DEBUGMSGTL(("agentx/subagent",
"trap session registration failed\n"));
snmp_close(main_session);
main_session = NULL;
return -1;
}
agentx_register_callbacks(main_session);
snmp_call_callbacks(SNMP_CALLBACK_APPLICATION,
SNMPD_CALLBACK_INDEX_START, (void *) main_session);
snmp_log(LOG_INFO, "NET-SNMP version %s AgentX subagent connected\n",
netsnmp_get_version());
DEBUGMSGTL(("agentx/subagent", "opening session... DONE (%p)\n",
main_session));
return 0;
}
main(int argc, char *argv[])
#endif
{
char options[128] = "aAc:CdD::fhHI:l:LP:qrsS:UvV-:";
int arg, i, ret;
int dont_fork = 0;
int dont_zero_log = 0;
int stderr_log = 0, syslog_log = 0;
int uid = 0, gid = 0;
int agent_mode = -1;
char logfile[PATH_MAX + 1] = { 0 };
char *cptr, **argvptr;
char *pid_file = NULL;
#if HAVE_GETPID
int fd;
FILE *PID;
#endif
#ifdef LOGFILE
strncpy(logfile, LOGFILE, PATH_MAX);
#endif
#ifdef NO_ROOT_ACCESS
/*
* Default to no.
*/
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS, 1);
#endif
/*
* Default to NOT running an AgentX master.
*/
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_AGENTX_MASTER, 0);
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_AGENTX_TIMEOUT, -1);
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_AGENTX_RETRIES, -1);
/*
* Add some options if they are available.
*/
#if HAVE_UNISTD_H
strcat(options, "g:u:");
#endif
#if defined(USING_AGENTX_SUBAGENT_MODULE)|| defined(USING_AGENTX_MASTER_MODULE)
strcat(options, "x:");
#endif
#ifdef USING_AGENTX_SUBAGENT_MODULE
strcat(options, "X");
#endif
/*
* Now process options normally.
*/
while ((arg = getopt(argc, argv, options)) != EOF) {
switch (arg) {
case '-':
if (strcasecmp(optarg, "help") == 0) {
usage(argv[0]);
}
if (strcasecmp(optarg, "version") == 0) {
version();
}
handle_long_opt(optarg);
break;
case 'a':
log_addresses++;
break;
case 'A':
dont_zero_log = 1;
break;
case 'c':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_OPTIONALCONFIG, optarg);
} else {
usage(argv[0]);
}
break;
case 'C':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DONT_READ_CONFIGS, 1);
break;
case 'd':
snmp_set_dump_packet(++snmp_dump_packet);
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_VERBOSE, 1);
break;
case 'D':
debug_register_tokens(optarg);
snmp_set_do_debugging(1);
break;
case 'f':
dont_fork = 1;
break;
#if HAVE_UNISTD_H
case 'g':
if (optarg != NULL) {
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID, atoi(optarg));
} else {
usage(argv[0]);
}
break;
#endif
case 'h':
usage(argv[0]);
break;
case 'H':
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS, 1);
init_agent("snmpd"); /* register our .conf handlers */
init_mib_modules();
init_snmp("snmpd");
fprintf(stderr, "Configuration directives understood:\n");
read_config_print_usage(" ");
exit(0);
case 'I':
if (optarg != NULL) {
add_to_init_list(optarg);
} else {
usage(argv[0]);
}
break;
case 'l':
if (optarg != NULL) {
if (strlen(optarg) > PATH_MAX) {
fprintf(stderr,
"%s: logfile path too long (limit %d chars)\n",
argv[0], PATH_MAX);
exit(1);
}
strncpy(logfile, optarg, PATH_MAX);
} else {
usage(argv[0]);
}
break;
case 'L':
stderr_log = 1;
break;
case 'P':
if (optarg != NULL) {
pid_file = optarg;
} else {
usage(argv[0]);
}
break;
case 'q':
snmp_set_quick_print(1);
break;
case 'r':
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS);
break;
case 's':
syslog_log = 1;
break;
case 'S':
if (optarg != NULL) {
switch (*optarg) {
case 'd':
case 'D':
Facility = LOG_DAEMON;
break;
case 'i':
case 'I':
Facility = LOG_INFO;
break;
case '0':
Facility = LOG_LOCAL0;
break;
case '1':
Facility = LOG_LOCAL1;
break;
case '2':
Facility = LOG_LOCAL2;
break;
case '3':
Facility = LOG_LOCAL3;
break;
case '4':
Facility = LOG_LOCAL4;
break;
case '5':
Facility = LOG_LOCAL5;
break;
case '6':
Facility = LOG_LOCAL6;
break;
case '7':
Facility = LOG_LOCAL7;
break;
default:
fprintf(stderr, "invalid syslog facility: -S%c\n",*optarg);
usage(argv[0]);
}
} else {
fprintf(stderr, "no syslog facility specified\n");
usage(argv[0]);
}
break;
case 'U':
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_LEAVE_PIDFILE);
break;
#if HAVE_UNISTD_H
case 'u':
if (optarg != NULL) {
char *ecp;
int uid;
uid = strtoul(optarg, &ecp, 10);
if (*ecp) {
#if HAVE_GETPWNAM && HAVE_PWD_H
struct passwd *info;
info = getpwnam(optarg);
if (info) {
uid = info->pw_uid;
} else {
#endif
fprintf(stderr, "Bad user id: %s\n", optarg);
exit(1);
#if HAVE_GETPWNAM && HAVE_PWD_H
}
#endif
}
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID, uid);
} else {
usage(argv[0]);
}
break;
#endif
case 'v':
version();
case 'V':
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_VERBOSE, 1);
break;
#if defined(USING_AGENTX_SUBAGENT_MODULE)|| defined(USING_AGENTX_MASTER_MODULE)
case 'x':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_X_SOCKET, optarg);
} else {
usage(argv[0]);
}
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_AGENTX_MASTER, 1);
break;
#endif
case 'X':
#if defined(USING_AGENTX_SUBAGENT_MODULE)
agent_mode = SUB_AGENT;
#else
fprintf(stderr, "%s: Illegal argument -X:"
"AgentX support not compiled in.\n", argv[0]);
usage(argv[0]);
exit(1);
#endif
break;
default:
usage(argv[0]);
break;
}
}
if (optind < argc) {
/*
* There are optional transport addresses on the command line.
*/
DEBUGMSGTL(("snmpd/main", "optind %d, argc %d\n", optind, argc));
for (i = optind; i < argc; i++) {
char *c, *astring;
if ((c = netsnmp_ds_get_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PORTS))) {
astring = malloc(strlen(c) + 2 + strlen(argv[i]));
if (astring == NULL) {
fprintf(stderr, "malloc failure processing argv[%d]\n", i);
exit(1);
}
sprintf(astring, "%s,%s", c, argv[i]);
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PORTS, astring);
free(astring);
} else {
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PORTS, argv[i]);
}
}
DEBUGMSGTL(("snmpd/main", "port spec: %s\n",
netsnmp_ds_get_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PORTS)));
}
setup_log(0, dont_zero_log, stderr_log, syslog_log, logfile);
/*
* Initialize a argv set to the current for restarting the agent.
*/
argvrestartp = (char **)malloc((argc + 2) * sizeof(char *));
argvptr = argvrestartp;
for (i = 0, ret = 1; i < argc; i++) {
ret += strlen(argv[i]) + 1;
}
argvrestart = (char *) malloc(ret);
argvrestartname = (char *) malloc(strlen(argv[0]) + 1);
if (!argvrestartp || !argvrestart || !argvrestartname) {
fprintf(stderr, "malloc failure processing argvrestart\n");
exit(1);
}
strcpy(argvrestartname, argv[0]);
if (agent_mode == -1) {
if (strstr(argvrestartname, "agentxd") != NULL) {
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, SUB_AGENT);
} else {
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, MASTER_AGENT);
}
} else {
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, agent_mode);
}
for (cptr = argvrestart, i = 0; i < argc; i++) {
strcpy(cptr, argv[i]);
*(argvptr++) = cptr;
cptr += strlen(argv[i]) + 1;
}
*cptr = 0;
*argvptr = NULL;
#ifdef BUFSIZ
setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
#endif
/*
* Initialize the world. Detach from the shell. Create initial user.
*/
#if HAVE_FORK
if (!dont_fork) {
/*
* Fork to return control to the invoking process and to
* guarantee that we aren't a process group leader.
*/
if (fork() != 0) {
/* Parent. */
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_QUIT_IMMEDIATELY)) {
exit(0);
}
} else {
/* Child. */
#ifdef HAVE_SETSID
/* Become a process/session group leader. */
setsid();
#endif
/*
* Fork to let the process/session group leader exit.
*/
if (fork() != 0) {
/* Parent. */
exit(0);
}
#ifndef WIN32
else {
/* Child. */
/* Avoid keeping any directory in use. */
chdir("/");
if (!stderr_log) {
/*
* Close inherited file descriptors to avoid
* keeping unnecessary references.
*/
close(0);
close(1);
close(2);
/*
* Redirect std{in,out,err} to /dev/null, just in
* case.
*/
open("/dev/null", O_RDWR);
dup(0);
dup(0);
}
}
#endif /* !WIN32 */
}
}
#endif /* HAVE_FORK */
SOCK_STARTUP;
init_agent("snmpd"); /* do what we need to do first. */
init_mib_modules();
/*
* start library
*/
init_snmp("snmpd");
if ((ret = init_master_agent()) != 0) {
/*
* Some error opening one of the specified agent transports.
*/
Exit(1); /* Exit logs exit val for us */
}
#ifdef SIGTERM
DEBUGMSGTL(("signal", "registering SIGTERM signal handler\n"));
signal(SIGTERM, SnmpdShutDown);
#endif
#ifdef SIGINT
DEBUGMSGTL(("signal", "registering SIGINT signal handler\n"));
signal(SIGINT, SnmpdShutDown);
#endif
#ifdef SIGHUP
DEBUGMSGTL(("signal", "registering SIGHUP signal handler\n"));
signal(SIGHUP, SnmpdReconfig);
#endif
#ifdef SIGUSR1
DEBUGMSGTL(("signal", "registering SIGUSR1 signal handler\n"));
signal(SIGUSR1, SnmpdDump);
#endif
#ifdef SIGPIPE
DEBUGMSGTL(("signal", "registering SIGPIPE signal handler\n"));
signal(SIGPIPE, SIG_IGN); /* 'Inline' failure of wayward readers */
#endif
/*
* Store persistent data immediately in case we crash later.
*/
snmp_store("snmpd");
/*
* Send coldstart trap if possible.
*/
send_easy_trap(0, 0);
#if HAVE_GETPID
if (pid_file != NULL) {
/*
* unlink the pid_file, if it exists, prior to open. Without
* doing this the open will fail if the user specified pid_file
* already exists.
*/
unlink(pid_file);
fd = open(pid_file, O_CREAT | O_EXCL | O_WRONLY, 0600);
if (fd == -1) {
snmp_log_perror(pid_file);
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
exit(1);
}
} else {
if ((PID = fdopen(fd, "w")) == NULL) {
snmp_log_perror(pid_file);
exit(1);
} else {
fprintf(PID, "%d\n", (int) getpid());
fclose(PID);
}
close(fd);
}
}
#endif
#if HAVE_UNISTD_H
#ifdef HAVE_SETGID
if ((gid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID)) != 0) {
DEBUGMSGTL(("snmpd/main", "Changing gid to %d.\n", gid));
if (setgid(gid) == -1
#ifdef HAVE_SETGROUPS
|| setgroups(1, (gid_t *)&gid) == -1
#endif
) {
snmp_log_perror("setgid failed");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
exit(1);
}
}
}
#endif
#ifdef HAVE_SETUID
if ((uid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID)) != 0) {
DEBUGMSGTL(("snmpd/main", "Changing uid to %d.\n", uid));
if (setuid(uid) == -1) {
snmp_log_perror("setuid failed");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
exit(1);
}
}
}
#endif
#endif
/*
* We're up, log our version number.
*/
snmp_log(LOG_INFO, "NET-SNMP version %s\n", netsnmp_get_version());
#ifdef WIN32
agent_status = AGENT_RUNNING;
#endif
netsnmp_addrcache_initialise();
/*
* Forever monitor the dest_port for incoming PDUs.
*/
DEBUGMSGTL(("snmpd/main", "We're up. Starting to process data.\n"));
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_QUIT_IMMEDIATELY))
receive();
#include "mib_module_shutdown.h"
DEBUGMSGTL(("snmpd/main", "sending shutdown trap\n"));
SnmpTrapNodeDown();
DEBUGMSGTL(("snmpd/main", "Bye...\n"));
snmp_shutdown("snmpd");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_LEAVE_PIDFILE) &&
(pid_file != NULL)) {
unlink(pid_file);
}
#ifdef WIN32
agent_status = AGENT_STOPPED;
#endif
return 0;
} /* End main() -- snmpd */
static void
usage(char *prog)
{
#ifdef WIN32
printf("\nUsage: %s [-register] [OPTIONS] [LISTENING ADDRESSES]",
prog);
printf("\n %s -unregister", prog);
#else
printf("\nUsage: %s [OPTIONS] [LISTENING ADDRESSES]", prog);
#endif
printf("\n");
printf("\n\tVersion: %s\n", netsnmp_get_version());
printf("\tWeb: http://www.net-snmp.org/\n");
printf("\tEmail: [email protected]\n");
printf("\n -a\t\t\tlog addresses\n");
printf(" -A\t\t\tappend to the logfile rather than truncating it\n");
printf(" -c FILE\t\tread FILE as a configuration file\n");
printf(" -C\t\t\tdo not read the default configuration files\n");
printf(" -d\t\t\tdump sent and received SNMP packets\n");
printf(" -D\t\t\tturn on debugging output\n");
printf(" -f\t\t\tdo not fork from the shell\n");
#if HAVE_UNISTD_H
printf(" -g GID\t\tchange to this numeric gid after opening\n"
"\t\t\t transport endpoints\n");
#endif
printf(" -h, --help\t\tdisplay this usage message\n");
printf(" -H\t\t\tdisplay configuration file directives understood\n");
printf(" -I [-]INITLIST\tlist of mib modules to initialize (or not)\n");
printf("\t\t\t (run snmpd with -Dmib_init for a list)\n");
printf(" -l FILE\t\tprint warnings/messages to FILE\n");
#ifdef LOGFILE
printf("\t\t\t (by default FILE=%s)\n", LOGFILE);
#else
printf("\t\t\t (by default FILE=none)\n");
#endif
printf(" -L\t\t\tprint warnings/messages to stdout/err\n");
printf(" -P FILE\t\tstore process id in FILE\n");
printf(" -q\t\t\tprint information in a more parsable format\n");
printf(" -r\t\t\tdo not exit if files only accessible to root\n"
"\t\t\t cannot be opened\n");
#ifdef WIN32
printf(" -register\t\tregister as a Windows service\n");
printf(" \t\t\t (followed by the startup parameter list)\n");
printf(" \t\t\t Note that not all parameters are relevant when running as a service\n");
#endif
printf(" -s\t\t\tlog warnings/messages to syslog\n");
printf(" -S d|i|0-7\t\tset syslog facility to LOG_DAEMON (d), LOG_INFO (i)\n\t\t\t or LOG_LOCAL[0-7] (default LOG_DAEMON)\n");
#if HAVE_UNISTD_H
printf(" -u UID\t\tchange to this uid (numeric or textual) after\n"
"\t\t\t opening transport endpoints\n");
#endif
#ifdef WIN32
printf(" -unregister\t\tunregister as a Windows service\n");
#endif
printf(" -v, --version\t\tdisplay version information\n");
printf(" -V\t\t\tverbose display\n");
#if defined(USING_AGENTX_SUBAGENT_MODULE)|| defined(USING_AGENTX_MASTER_MODULE)
printf(" -x ADDRESS\t\tuse ADDRESS as AgentX address\n");
#endif
#ifdef USING_AGENTX_SUBAGENT_MODULE
printf(" -X\t\t\trun as an AgentX subagent rather than as an\n"
"\t\t\t SNMP master agent\n");
#endif
printf("\n");
exit(1);
}
main(int argc, char *argv[])
#endif
{
char options[128] = "ac:CdD::efF:hHl:L:m:M:no:PqsS:tvO:-:";
netsnmp_session *sess_list = NULL, *ss = NULL;
netsnmp_transport *transport = NULL;
int arg, i = 0;
int count, numfds, block;
fd_set fdset;
struct timeval timeout, *tvp;
char *cp, *listen_ports = NULL;
int agentx_subagent = 1, depmsg = 0;
/*
* register our configuration handlers now so -H properly displays them
*/
snmptrapd_register_configs( );
init_usm_conf( "snmptrapd" );
register_config_handler("snmptrapd", "snmptrapdaddr",
parse_trapd_address, free_trapd_address, "string");
register_config_handler("snmptrapd", "doNotLogTraps",
parse_config_doNotLogTraps, NULL, "(1|yes|true|0|no|false)");
#if HAVE_GETPID
register_config_handler("snmptrapd", "pidFile",
parse_config_pidFile, NULL, "string");
#endif
register_config_handler("snmptrapd", "logOption",
parse_config_logOption, NULL, "string");
register_config_handler("snmptrapd", "doNotFork",
parse_config_doNotFork, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "printEventNumbers",
parse_config_printEventNumbers, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "ignoreAuthFailure",
parse_config_ignoreAuthFailure, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "outputOption",
parse_config_outputOption, NULL, "string");
#ifdef WIN32
setvbuf(stdout, NULL, _IONBF, BUFSIZ);
#else
setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
#endif
/*
* Add some options if they are available.
*/
#if HAVE_GETPID
strcat(options, "p:u:");
#endif
snmp_log_syslogname(app_name);
/*
* Now process options normally.
*/
while ((arg = getopt(argc, argv, options)) != EOF) {
switch (arg) {
case '-':
if (strcasecmp(optarg, "help") == 0) {
usage();
exit(0);
}
if (strcasecmp(optarg, "version") == 0) {
version();
exit(0);
}
handle_long_opt(optarg);
break;
case 'a':
dropauth = 1;
break;
case 'c':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_OPTIONALCONFIG, optarg);
} else {
usage();
exit(1);
}
break;
case 'C':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DONT_READ_CONFIGS, 1);
break;
case 'd':
snmp_set_dump_packet(1);
break;
case 'D':
debug_register_tokens(optarg);
snmp_set_do_debugging(1);
break;
case 'e':
Event++;
break;
case 'f':
dofork = 0;
break;
case 'F':
if (optarg != NULL) {
trap1_fmt_str_remember = optarg;
} else {
usage();
exit(1);
}
break;
case 'h':
usage();
exit(0);
case 'H':
init_notification_log();
init_snmp("snmptrapd");
fprintf(stderr, "Configuration directives understood:\n");
read_config_print_usage(" ");
exit(0);
case 'S':
fprintf(stderr,
"Warning: -S option is deprecated; use -Ls <facility> instead\n");
depmsg = 1;
if (optarg != NULL) {
switch (*optarg) {
case 'd':
case 'D':
Facility = LOG_DAEMON;
break;
case 'i':
case 'I':
Facility = LOG_INFO;
break;
case '0':
Facility = LOG_LOCAL0;
break;
case '1':
Facility = LOG_LOCAL1;
break;
case '2':
Facility = LOG_LOCAL2;
break;
case '3':
Facility = LOG_LOCAL3;
break;
case '4':
Facility = LOG_LOCAL4;
break;
case '5':
Facility = LOG_LOCAL5;
break;
case '6':
Facility = LOG_LOCAL6;
break;
case '7':
Facility = LOG_LOCAL7;
break;
default:
fprintf(stderr, "invalid syslog facility: -S%c\n",*optarg);
usage();
exit(1);
}
} else {
fprintf(stderr, "no syslog facility specified\n");
usage();
exit(1);
}
break;
case 'm':
if (optarg != NULL) {
setenv("MIBS", optarg, 1);
} else {
usage();
exit(1);
}
break;
case 'M':
if (optarg != NULL) {
setenv("MIBDIRS", optarg, 1);
} else {
usage();
exit(1);
}
break;
case 'n':
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_APP_NUMERIC_IP, 1);
break;
case 'o':
fprintf(stderr,
"Warning: -o option is deprecated; use -Lf <file> instead\n");
Print++;
if (optarg != NULL) {
logfile = optarg;
snmp_enable_filelog(optarg, 0);
} else {
usage();
exit(1);
}
break;
case 'O':
cp = snmp_out_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr, "Unknown output option passed to -O: %c\n",
*cp);
usage();
exit(1);
}
break;
case 'L':
if (snmp_log_options( optarg, argc, argv ) < 0 ) {
usage();
exit(1);
}
Log++;
break;
case 'P':
fprintf(stderr,
"Warning: -P option is deprecated; use -f -Le instead\n");
dofork = 0;
snmp_enable_stderrlog();
Print++;
break;
case 's':
fprintf(stderr,
"Warning: -s option is deprecated; use -Lsd instead\n");
depmsg = 1;
Syslog++;
break;
case 't':
SyslogTrap++;
break;
#if HAVE_GETPID
case 'u':
fprintf(stderr,
"Warning: -u option is deprecated; use -p instead\n");
case 'p':
if (optarg != NULL) {
parse_config_pidFile(NULL, optarg);
} else {
usage();
exit(1);
}
break;
#endif
case 'v':
version();
exit(0);
break;
default:
fprintf(stderr, "invalid option: -%c\n", arg);
usage();
exit(1);
break;
}
}
if (optind < argc) {
/*
* There are optional transport addresses on the command line.
*/
for (i = optind; i < argc; i++) {
char *astring;
if (listen_ports != NULL) {
astring = malloc(strlen(listen_ports) + 2 + strlen(argv[i]));
if (astring == NULL) {
fprintf(stderr, "malloc failure processing argv[%d]\n", i);
exit(1);
}
sprintf(astring, "%s,%s", listen_ports, argv[i]);
free(listen_ports);
listen_ports = astring;
} else {
listen_ports = strdup(argv[i]);
if (listen_ports == NULL) {
fprintf(stderr, "malloc failure processing argv[%d]\n", i);
exit(1);
}
}
}
}
/*
* I'm being lazy here, and not checking the
* return value from these registration calls.
* Don't try this at home, children!
*/
if (!Log && !Print) {
Syslog = 1;
netsnmp_add_global_traphandler(NETSNMPTRAPD_PRE_HANDLER, syslog_handler);
} else {
netsnmp_add_global_traphandler(NETSNMPTRAPD_PRE_HANDLER, print_handler);
}
netsnmp_add_global_traphandler(NETSNMPTRAPD_POST_HANDLER, notification_handler);
if (Event) {
netsnmp_add_traphandler(event_handler, risingAlarm,
OID_LENGTH(risingAlarm));
netsnmp_add_traphandler(event_handler, fallingAlarm,
OID_LENGTH(fallingAlarm));
netsnmp_add_traphandler(event_handler, unavailableAlarm,
OID_LENGTH(unavailableAlarm));
/* XXX - might be worth setting some "magic data"
* in the traphandler structure that 'event_handler'
* can use to avoid checking the trap OID values.
*/
}
#ifdef USING_AGENTX_SUBAGENT_MODULE
/*
* we're an agentx subagent?
*/
if (agentx_subagent) {
/*
* make us a agentx client.
*/
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, 1);
}
#endif
/*
* don't fail if we can't do agentx (ie, socket not there, or not root)
*/
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS);
/*
* ignore any warning messages.
*/
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_CONNECTION_WARNINGS);
/*
* initialize the agent library
*/
init_agent("snmptrapd");
/*
* initialize local modules
*/
if (agentx_subagent) {
extern void init_register_usmUser_context(const char *);
#ifdef USING_AGENTX_SUBAGENT_MODULE
void init_subagent(void);
init_subagent();
#endif
/* register the notification log table */
init_notification_log();
/* register ourselves as having a USM user database */
init_register_usmUser_context("snmptrapd");
}
#ifdef NETSNMP_EMBEDDED_PERL
init_perl();
{
/* set the default path to load */
char init_file[SNMP_MAXBUF];
snprintf(init_file, sizeof(init_file) - 1,
"%s/%s", SNMPSHAREPATH, "snmp_perl_trapd.pl");
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PERL_INIT_FILE,
init_file);
}
#endif
/*
* Initialize the world.
*/
init_snmp("snmptrapd");
if (trap1_fmt_str_remember) {
free_trap1_fmt();
free_trap2_fmt();
print_format1 = strdup(trap1_fmt_str_remember);
print_format2 = strdup(trap1_fmt_str_remember);
}
if (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_QUIT_IMMEDIATELY)) {
/*
* just starting up to process specific configuration and then
* shutting down immediately.
*/
running = 0;
}
#ifndef WIN32
/*
* fork the process to the background if we are not printing to stderr
*/
if (dofork && running) {
int fd;
switch (fork()) {
case -1:
fprintf(stderr, "bad fork - %s\n", strerror(errno));
_exit(1);
case 0:
/*
* become process group leader
*/
if (setsid() == -1) {
fprintf(stderr, "bad setsid - %s\n", strerror(errno));
_exit(1);
}
/*
* if we are forked, we don't want to print out to stdout or stderr
*/
fd = open("/dev/null", O_RDWR);
dup2(fd, STDIN_FILENO);
dup2(fd, STDOUT_FILENO);
dup2(fd, STDERR_FILENO);
close(fd);
break;
default:
_exit(0);
}
}
#endif /* WIN32 */
#if HAVE_GETPID
if (pid_file != NULL) {
if ((PID = fopen(pid_file, "w")) == NULL) {
snmp_log_perror("fopen");
exit(1);
}
fprintf(PID, "%d\n", (int) getpid());
fclose(PID);
free_config_pidFile();
}
#endif
if (Syslog) {
snmp_enable_syslog_ident(app_name, Facility);
snmp_log(LOG_INFO, "Starting snmptrapd %s\n", netsnmp_get_version());
if (depmsg) {
snmp_log(LOG_WARNING, "-s and -S options are deprecated; use -Ls <facility> instead\n");
}
}
if (Print || Log) {
struct tm *tm;
time_t timer;
time(&timer);
tm = localtime(&timer);
snmp_log(LOG_INFO,
"%.4d-%.2d-%.2d %.2d:%.2d:%.2d NET-SNMP version %s Started.\n",
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec,
netsnmp_get_version());
}
SOCK_STARTUP;
if (listen_ports)
cp = listen_ports;
else
cp = default_port;
while (cp != NULL) {
char *sep = strchr(cp, ',');
char listen_name[128];
char *cp2 = strchr(cp, ':');
if (sep != NULL) {
*sep = 0;
}
/*
* Make sure this defaults to listening on port 162
*/
if (!cp2) {
snprintf(listen_name, sizeof(listen_name), "%s:162", cp);
cp2 = listen_name;
} else {
cp2 = cp;
}
transport = netsnmp_tdomain_transport(cp2, 1, "udp");
if (transport == NULL) {
snmp_log(LOG_ERR, "couldn't open %s -- errno %d (\"%s\")\n",
cp2, errno, strerror(errno));
snmptrapd_close_sessions(sess_list);
SOCK_CLEANUP;
exit(1);
} else {
ss = snmptrapd_add_session(transport);
if (ss == NULL) {
/*
* Shouldn't happen? We have already opened the transport
* successfully so what could have gone wrong?
*/
snmptrapd_close_sessions(sess_list);
netsnmp_transport_free(transport);
if (Syslog) {
snmp_log(LOG_ERR, "couldn't open snmp - %m");
}
SOCK_CLEANUP;
exit(1);
} else {
ss->next = sess_list;
sess_list = ss;
}
}
/*
* Process next listen address, if there is one.
*/
if (sep != NULL) {
*sep = ',';
cp = sep + 1;
} else {
cp = NULL;
}
}
signal(SIGTERM, term_handler);
#ifdef SIGHUP
signal(SIGHUP, hup_handler);
#endif
signal(SIGINT, term_handler);
#ifdef WIN32SERVICE
trapd_status = SNMPTRAPD_RUNNING;
#endif
while (running) {
if (reconfig) {
if (Print || Log) {
struct tm *tm;
time_t timer;
time(&timer);
tm = localtime(&timer);
/*
* If we are logging to a file, receipt of SIGHUP also
* indicates the the log file should be closed and
* re-opened. This is useful for users that want to
* rotate logs in a more predictable manner.
*/
if (logfile)
snmp_enable_filelog(logfile, 1);
snmp_log(LOG_INFO,
"%.4d-%.2d-%.2d %.2d:%.2d:%.2d NET-SNMP version %s Reconfigured.\n",
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec,
netsnmp_get_version());
}
if (Syslog)
snmp_log(LOG_INFO, "Snmptrapd reconfiguring");
trapd_update_config();
if (trap1_fmt_str_remember) {
free_trap1_fmt();
print_format1 = strdup(trap1_fmt_str_remember);
}
reconfig = 0;
}
numfds = 0;
FD_ZERO(&fdset);
block = 0;
tvp = &timeout;
timerclear(tvp);
tvp->tv_sec = 5;
snmp_select_info(&numfds, &fdset, tvp, &block);
if (block == 1)
tvp = NULL; /* block without timeout */
count = select(numfds, &fdset, 0, 0, tvp);
gettimeofday(&Now, 0);
if (count > 0) {
snmp_read(&fdset);
} else
switch (count) {
case 0:
snmp_timeout();
break;
case -1:
if (errno == EINTR)
continue;
snmp_log_perror("select");
running = 0;
break;
default:
fprintf(stderr, "select returned %d\n", count);
running = 0;
}
run_alarms();
}
if (Print || Log) {
struct tm *tm;
time_t timer;
time(&timer);
tm = localtime(&timer);
snmp_log(LOG_INFO,
"%.4d-%.2d-%.2d %.2d:%.2d:%.2d NET-SNMP version %s Stopped.\n",
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour,
tm->tm_min, tm->tm_sec, netsnmp_get_version());
}
if (Syslog) {
snmp_log(LOG_INFO, "Stopping snmptrapd");
}
snmptrapd_close_sessions(sess_list);
snmp_shutdown("snmptrapd");
#ifdef WIN32SERVICE
trapd_status = SNMPTRAPD_STOPPED;
#endif
snmp_disable_log();
SOCK_CLEANUP;
return 0;
}
int
main(int argc, char *argv[])
{
char *hostname = NULL;
struct protoent *p;
struct protox *tp = NULL; /* for printing cblocks & stats */
int allprotos = 1;
char *community = NULL;
char *argp;
netsnmp_session session;
int timeout = SNMP_DEFAULT_TIMEOUT;
int version = SNMP_DEFAULT_VERSION;
int arg;
#ifndef DISABLE_MIB_LOADING
init_mib();
#endif /* DISABLE_MIB_LOADING */
/*
* Usage: snmpnetstatwalk -v 1 [-q] hostname community ... or:
* Usage: snmpnetstat [-v 2 ] [-q] hostname noAuth ...
*/
while ((arg = getopt(argc, argv, "VhdqD:t:c:v:aionrsP:I:")) != EOF) {
switch (arg) {
case 'V':
fprintf(stderr, "NET-SNMP version: %s\n",
netsnmp_get_version());
exit(0);
break;
case 'h':
usage();
exit(0);
case 'd':
snmp_set_dump_packet(1);
break;
case 'q':
snmp_set_quick_print(1);
break;
case 'D':
debug_register_tokens(optarg);
snmp_set_do_debugging(1);
break;
case 't':
timeout = atoi(optarg);
timeout *= 1000000;
break;
case 'c':
community = optarg;
break;
case 'v':
argp = optarg;
version = -1;
#ifndef DISABLE_SNMPV1
if (!strcasecmp(argp, "1"))
version = SNMP_VERSION_1;
#endif
#ifndef DISABLE_SNMPV2C
if (!strcasecmp(argp, "2c"))
version = SNMP_VERSION_2c;
#endif
if (version == -1) {
fprintf(stderr, "Invalid version: %s\n", argp);
usage();
exit(1);
}
break;
case 'a':
aflag++;
break;
case 'i':
iflag++;
break;
case 'o':
oflag++;
break;
case 'n':
nflag++;
break;
case 'r':
rflag++;
break;
case 's':
sflag++;
break;
case 'P':
if ((tp = name2protox(optarg)) == NULLPROTOX) {
fprintf(stderr, "%s: unknown or uninstrumented protocol\n",
optarg);
exit(1);
}
allprotos = 0;
tp->pr_wanted = 1;
break;
case 'I':
iflag++;
intrface = optarg;
break;
default:
exit(1);
break;
}
continue;
}
init_snmp("snmpapp");
snmp_enable_stderrlog();
if (version == SNMP_DEFAULT_VERSION) {
version = netsnmp_ds_get_int(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_SNMPVERSION);
if (!version) {
switch (DEFAULT_SNMP_VERSION) {
#ifndef DISABLE_SNMPV1
case 1:
version = SNMP_VERSION_1;
break;
#endif
#ifndef DISABLE_SNMPV2C
case 2:
version = SNMP_VERSION_2c;
break;
#endif
case 3:
version = SNMP_VERSION_3;
break;
}
#ifndef DISABLE_SNMPV1
} else if (version == NETSNMP_DS_SNMP_VERSION_1) {
/* Bogus value. version1 = 0 */
version = SNMP_VERSION_1;
#endif
}
}
if (optind < argc) {
hostname = argv[optind++];
}
else {
fprintf(stderr, "Missing host name.\n");
exit(1);
}
if (community == NULL) {
community = netsnmp_ds_get_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_COMMUNITY);
}
if (optind < argc && isdigit(argv[optind][0])) {
interval = atoi(argv[optind++]);
if (interval <= 0) {
usage();
exit(1);
}
iflag++;
}
if (optind < argc) {
usage();
exit(1);
}
snmp_sess_init(&session);
session.peername = hostname;
session.timeout = timeout;
#if !defined(DISABLE_SNMPV1) || !defined(DISABLE_SNMPV2C)
if (version != SNMP_VERSION_3) {
if (!community) {
fprintf(stderr, "Missing community name.\n");
exit(1);
}
session.version = version;
session.community = (u_char *) community;
session.community_len = strlen(community);
}
#endif
SOCK_STARTUP;
/*
* open an SNMP session
*/
Session = snmp_open(&session);
if (Session == NULL) {
/*
* diagnose snmp_open errors with the input netsnmp_session pointer
*/
snmp_sess_perror("snmpnetstat", &session);
SOCK_CLEANUP;
exit(1);
}
/*
* Keep file descriptors open to avoid overhead
* of open/close on each call to get* routines.
*/
sethostent(1);
setnetent(1);
setprotoent(1);
setservent(1);
if (iflag) {
intpr(interval);
}
if (oflag) {
intpro(interval);
}
if (rflag) {
if (sflag)
rt_stats();
else
routepr();
}
if (!(iflag || rflag || oflag)) {
while ((p = getprotoent46())) {
for (tp = protox; tp->pr_name; tp++) {
if (strcmp(tp->pr_name, p->p_name) == 0)
break;
}
if (tp->pr_name == 0 || (tp->pr_wanted == 0 && allprotos == 0))
continue;
if (sflag) {
if (tp->pr_stats)
(*tp->pr_stats) ();
} else if (tp->pr_cblocks)
(*tp->pr_cblocks) (tp->pr_name);
}
} /* ! iflag, rflag, oflag */
endprotoent();
endservent();
endnetent();
endhostent();
snmp_close(Session);
SOCK_CLEANUP;
return 0;
}
void print_revision_snmp(void) {
printf(" libnetsnmp v%s\n", netsnmp_get_version());
}
void
usage(void)
{
#ifdef WIN32SERVICE
fprintf(stderr, "\nUsage: snmptrapd [-register] [-quiet] [OPTIONS] [LISTENING ADDRESSES]");
fprintf(stderr, "\n snmptrapd [-unregister] [-quiet]");
#else
fprintf(stderr, "Usage: snmptrapd [OPTIONS] [LISTENING ADDRESSES]\n");
#endif
fprintf(stderr, "\n\tNET-SNMP Version: %s\n", netsnmp_get_version());
fprintf(stderr, "\tWeb: http://www.net-snmp.org/\n");
fprintf(stderr, "\tEmail: [email protected]\n");
fprintf(stderr, "\n");
fprintf(stderr, " -a\t\t\tignore authentication failure traps\n");
fprintf(stderr, " -A\t\t\tappend to log file rather than truncating it\n");
fprintf(stderr, " -c FILE\t\tread FILE as a configuration file\n");
fprintf(stderr,
" -C\t\t\tdo not read the default configuration files\n");
fprintf(stderr, " -d\t\t\tdump sent and received SNMP packets\n");
fprintf(stderr, " -D[TOKEN[,...]]\t\tturn on debugging output for the specified TOKENs\n\t\t\t (ALL gives extremely verbose debugging output)\n");
fprintf(stderr, " -f\t\t\tdo not fork from the shell\n");
fprintf(stderr,
" -F FORMAT\t\tuse specified format for logging to standard error\n");
#if HAVE_UNISTD_H
fprintf(stderr, " -g GID\t\tchange to this numeric gid after opening\n"
"\t\t\t transport endpoints\n");
#endif
fprintf(stderr, " -h, --help\t\tdisplay this usage message\n");
fprintf(stderr,
" -H\t\t\tdisplay configuration file directives understood\n");
fprintf(stderr,
" -m MIBLIST\t\tuse MIBLIST instead of the default MIB list\n");
fprintf(stderr,
" -M DIRLIST\t\tuse DIRLIST as the list of locations\n\t\t\t to look for MIBs\n");
fprintf(stderr,
" -n\t\t\tuse numeric addresses instead of attempting\n\t\t\t hostname lookups (no DNS)\n");
#if HAVE_GETPID
fprintf(stderr, " -p FILE\t\tstore process id in FILE\n");
#endif
#ifdef WIN32SERVICE
fprintf(stderr, " -register\t\tregister as a Windows service\n");
fprintf(stderr, " \t\t\t (followed by -quiet to prevent message popups)\n");
fprintf(stderr, " \t\t\t (followed by the startup parameter list)\n");
fprintf(stderr, " \t\t\t Note that some parameters are not relevant when running as a service\n");
#endif
fprintf(stderr, " -t\t\t\tPrevent traps from being logged to syslog\n");
#if HAVE_UNISTD_H
fprintf(stderr, " -u UID\t\tchange to this uid (numeric or textual) after\n"
"\t\t\t opening transport endpoints\n");
#endif
#ifdef WIN32SERVICE
fprintf(stderr, " -unregister\t\tunregister as a Windows service\n");
fprintf(stderr, " \t\t\t (followed -quiet to prevent message popups)\n");
#endif
fprintf(stderr, " -v, --version\t\tdisplay version information\n");
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
fprintf(stderr, " -x ADDRESS\t\tuse ADDRESS as AgentX address\n");
fprintf(stderr, " -X\t\t\tdon't become a subagent\n");
#endif
fprintf(stderr,
" -O <OUTOPTS>\t\ttoggle options controlling output display\n");
snmp_out_toggle_options_usage("\t\t\t", stderr);
fprintf(stderr,
" -L <LOGOPTS>\t\ttoggle options controlling where to log to\n");
snmp_log_options_usage("\t\t\t", stderr);
}
/*******************************************************************-o-******
* receive
*
* Parameters:
*
* Returns:
* 0 On success.
* -1 System error.
*
* Infinite while-loop which monitors incoming messages for the agent.
* Invoke the established message handlers for incoming messages on a per
* port basis. Handle timeouts.
*/
static int
receive(void)
{
int numfds;
netsnmp_large_fd_set readfds, writefds, exceptfds;
struct timeval timeout, *tvp = &timeout;
int count, block, i;
#ifdef USING_SMUX_MODULE
int sd;
#endif /* USING_SMUX_MODULE */
netsnmp_large_fd_set_init(&readfds, FD_SETSIZE);
netsnmp_large_fd_set_init(&writefds, FD_SETSIZE);
netsnmp_large_fd_set_init(&exceptfds, FD_SETSIZE);
/*
* ignore early sighup during startup
*/
reconfig = 0;
#if defined(WIN32)
create_stdin_waiter_thread();
#endif
/*
* Loop-forever: execute message handlers for sockets with data
*/
while (netsnmp_running) {
if (reconfig) {
#if HAVE_SIGHOLD
sighold(SIGHUP);
#endif
reconfig = 0;
snmp_log(LOG_INFO, "Reconfiguring daemon\n");
/* Stop and restart logging. This allows logfiles to be
rotated etc. */
netsnmp_logging_restart();
snmp_log(LOG_INFO, "NET-SNMP version %s restarted\n",
netsnmp_get_version());
update_config();
send_easy_trap(SNMP_TRAP_ENTERPRISESPECIFIC, 3);
#if HAVE_SIGHOLD
sigrelse(SIGHUP);
#endif
}
/*
* default to sleeping for a really long time. INT_MAX
* should be sufficient (eg we don't care if time_t is
* a long that's bigger than an int).
*/
tvp = &timeout;
tvp->tv_sec = INT_MAX;
tvp->tv_usec = 0;
numfds = 0;
NETSNMP_LARGE_FD_ZERO(&readfds);
NETSNMP_LARGE_FD_ZERO(&writefds);
NETSNMP_LARGE_FD_ZERO(&exceptfds);
block = 0;
snmp_select_info2(&numfds, &readfds, tvp, &block);
if (block == 1) {
tvp = NULL; /* block without timeout */
}
#ifdef USING_SMUX_MODULE
if (smux_listen_sd >= 0) {
NETSNMP_LARGE_FD_SET(smux_listen_sd, &readfds);
numfds =
smux_listen_sd >= numfds ? smux_listen_sd + 1 : numfds;
for (i = 0; i < smux_snmp_select_list_get_length(); i++) {
sd = smux_snmp_select_list_get_SD_from_List(i);
if (sd != 0)
{
NETSNMP_LARGE_FD_SET(sd, &readfds);
numfds = sd >= numfds ? sd + 1 : numfds;
}
}
}
#endif /* USING_SMUX_MODULE */
#ifndef NETSNMP_FEATURE_REMOVE_FD_EVENT_MANAGER
netsnmp_external_event_info2(&numfds, &readfds, &writefds, &exceptfds);
#endif /* NETSNMP_FEATURE_REMOVE_FD_EVENT_MANAGER */
reselect:
for (i = 0; i < NUM_EXTERNAL_SIGS; i++) {
if (external_signal_scheduled[i]) {
external_signal_scheduled[i]--;
external_signal_handler[i](i);
}
}
DEBUGMSGTL(("snmpd/select", "select( numfds=%d, ..., tvp=%p)\n",
numfds, tvp));
if (tvp)
DEBUGMSGTL(("timer", "tvp %ld.%ld\n", (long) tvp->tv_sec,
(long) tvp->tv_usec));
count = netsnmp_large_fd_set_select(numfds, &readfds, &writefds, &exceptfds,
tvp);
DEBUGMSGTL(("snmpd/select", "returned, count = %d\n", count));
if (count > 0) {
#ifdef USING_SMUX_MODULE
/*
* handle the SMUX sd's
*/
if (smux_listen_sd >= 0) {
for (i = 0; i < smux_snmp_select_list_get_length(); i++) {
sd = smux_snmp_select_list_get_SD_from_List(i);
if (NETSNMP_LARGE_FD_ISSET(sd, &readfds)) {
if (smux_process(sd) < 0) {
smux_snmp_select_list_del(sd);
}
}
}
/*
* new connection
*/
if (NETSNMP_LARGE_FD_ISSET(smux_listen_sd, &readfds)) {
if ((sd = smux_accept(smux_listen_sd)) >= 0) {
smux_snmp_select_list_add(sd);
}
}
}
#endif /* USING_SMUX_MODULE */
#ifndef NETSNMP_FEATURE_REMOVE_FD_EVENT_MANAGER
netsnmp_dispatch_external_events2(&count, &readfds,
&writefds, &exceptfds);
#endif /* NETSNMP_FEATURE_REMOVE_FD_EVENT_MANAGER */
/* If there are still events leftover, process them */
if (count > 0) {
snmp_read2(&readfds);
}
} else
switch (count) {
case 0:
snmp_timeout();
break;
case -1:
DEBUGMSGTL(("snmpd/select", " errno = %d\n", errno));
if (errno == EINTR) {
/*
* likely that we got a signal. Check our special signal
* flags before retrying select.
*/
if (netsnmp_running && !reconfig) {
goto reselect;
}
continue;
} else {
snmp_log_perror("select");
}
return -1;
default:
snmp_log(LOG_ERR, "select returned %d\n", count);
return -1;
} /* endif -- count>0 */
/*
* see if persistent store needs to be saved
*/
snmp_store_if_needed();
/*
* run requested alarms
*/
run_alarms();
netsnmp_check_outstanding_agent_requests();
} /* endwhile */
netsnmp_large_fd_set_cleanup(&readfds);
netsnmp_large_fd_set_cleanup(&writefds);
netsnmp_large_fd_set_cleanup(&exceptfds);
#if defined(WIN32)
join_stdin_waiter_thread();
#endif
snmp_log(LOG_INFO, "Received TERM or STOP signal... shutting down...\n");
return 0;
} /* end receive() */
static void
snmptrapd_main_loop(void)
{
int count, numfds, block;
fd_set readfds,writefds,exceptfds;
struct timeval timeout, *tvp;
while (netsnmp_running) {
if (reconfig) {
/*
* If we are logging to a file, receipt of SIGHUP also
* indicates that the log file should be closed and
* re-opened. This is useful for users that want to
* rotate logs in a more predictable manner.
*/
netsnmp_logging_restart();
snmp_log(LOG_INFO, "NET-SNMP version %s restarted\n",
netsnmp_get_version());
trapd_update_config();
if (trap1_fmt_str_remember) {
parse_format( NULL, trap1_fmt_str_remember );
}
reconfig = 0;
}
numfds = 0;
FD_ZERO(&readfds);
FD_ZERO(&writefds);
FD_ZERO(&exceptfds);
block = 0;
tvp = &timeout;
timerclear(tvp);
tvp->tv_sec = 5;
snmp_select_info(&numfds, &readfds, tvp, &block);
if (block == 1)
tvp = NULL; /* block without timeout */
#ifndef NETSNMP_FEATURE_REMOVE_FD_EVENT_MANAGER
netsnmp_external_event_info(&numfds, &readfds, &writefds, &exceptfds);
#endif /* NETSNMP_FEATURE_REMOVE_FD_EVENT_MANAGER */
count = select(numfds, &readfds, &writefds, &exceptfds, tvp);
if (count > 0) {
#ifndef NETSNMP_FEATURE_REMOVE_FD_EVENT_MANAGER
netsnmp_dispatch_external_events(&count, &readfds, &writefds,
&exceptfds);
#endif /* NETSNMP_FEATURE_REMOVE_FD_EVENT_MANAGER */
/* If there are any more events after external events, then
* try SNMP events. */
if (count > 0) {
snmp_read(&readfds);
}
} else {
switch (count) {
case 0:
snmp_timeout();
break;
case -1:
if (errno == EINTR)
continue;
snmp_log_perror("select");
netsnmp_running = 0;
break;
default:
fprintf(stderr, "select returned %d\n", count);
netsnmp_running = 0;
}
}
run_alarms();
}
}
main(int argc, char *argv[])
#endif
{
char options[128] = "aAc:CdD::fhHI:l:L:m:M:n:p:P:qrsS:UvV-:Y:";
int arg, i, ret;
int dont_fork = 0, do_help = 0;
int log_set = 0;
int agent_mode = -1;
char *pid_file = NULL;
char option_compatability[] = "-Le";
#ifndef WIN32
int prepared_sockets = 0;
#endif
#if HAVE_GETPID
int fd;
FILE *PID;
#endif
#ifndef WIN32
#ifndef NETSNMP_NO_SYSTEMD
/* check if systemd has sockets for us and don't close them */
prepared_sockets = netsnmp_sd_listen_fds(0);
#endif /* NETSNMP_NO_SYSTEMD */
/*
* close all non-standard file descriptors we may have
* inherited from the shell.
*/
if (!prepared_sockets) {
for (i = getdtablesize() - 1; i > 2; --i) {
(void) close(i);
}
}
#endif /* #WIN32 */
/*
* register signals ASAP to prevent default action (usually core)
* for signals during startup...
*/
#ifdef SIGTERM
DEBUGMSGTL(("signal", "registering SIGTERM signal handler\n"));
signal(SIGTERM, SnmpdShutDown);
#endif
#ifdef SIGINT
DEBUGMSGTL(("signal", "registering SIGINT signal handler\n"));
signal(SIGINT, SnmpdShutDown);
#endif
#ifdef SIGHUP
signal(SIGHUP, SIG_IGN); /* do not terminate on early SIGHUP */
#endif
#ifdef SIGUSR1
DEBUGMSGTL(("signal", "registering SIGUSR1 signal handler\n"));
signal(SIGUSR1, SnmpdDump);
#endif
#ifdef SIGPIPE
DEBUGMSGTL(("signal", "registering SIGPIPE signal handler\n"));
signal(SIGPIPE, SIG_IGN); /* 'Inline' failure of wayward readers */
#endif
#ifdef SIGXFSZ
signal(SIGXFSZ, SnmpdCatchRandomSignal);
#endif
#ifdef NETSNMP_NO_ROOT_ACCESS
/*
* Default to no.
*/
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS, 1);
#endif
/*
* Default to NOT running an AgentX master.
*/
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_AGENTX_MASTER, 0);
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_AGENTX_TIMEOUT, -1);
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_AGENTX_RETRIES, -1);
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_CACHE_TIMEOUT, 5);
/*
* Add some options if they are available.
*/
#if HAVE_UNISTD_H
strcat(options, "g:u:");
#endif
#if defined(USING_AGENTX_SUBAGENT_MODULE)|| defined(USING_AGENTX_MASTER_MODULE)
strcat(options, "x:");
#endif
#ifdef USING_AGENTX_SUBAGENT_MODULE
strcat(options, "X");
#endif
/*
* This is incredibly ugly, but it's probably the simplest way
* to handle the old '-L' option as well as the new '-Lx' style
*/
for (i=0; i<argc; i++) {
if (!strcmp(argv[i], "-L"))
argv[i] = option_compatability;
}
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG
#ifdef WIN32
snmp_log_syslogname(app_name_long);
#else
snmp_log_syslogname(app_name);
#endif
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG */
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPTYPE, app_name);
/*
* Now process options normally.
*/
while ((arg = getopt(argc, argv, options)) != EOF) {
switch (arg) {
case '-':
if (strcasecmp(optarg, "help") == 0) {
usage(argv[0]);
}
if (strcasecmp(optarg, "version") == 0) {
version();
}
handle_long_opt(optarg);
break;
case 'a':
log_addresses++;
break;
case 'A':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPEND_LOGFILES, 1);
break;
case 'c':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_OPTIONALCONFIG, optarg);
} else {
usage(argv[0]);
}
break;
case 'C':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DONT_READ_CONFIGS, 1);
break;
case 'd':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DUMP_PACKET,
++snmp_dump_packet);
break;
case 'D':
debug_register_tokens(optarg);
snmp_set_do_debugging(1);
break;
case 'f':
dont_fork = 1;
break;
#if HAVE_UNISTD_H
case 'g':
if (optarg != NULL) {
char *ecp;
int gid;
gid = strtoul(optarg, &ecp, 10);
#if HAVE_GETGRNAM && HAVE_PWD_H
if (*ecp) {
struct group *info;
info = getgrnam(optarg);
gid = info ? info->gr_gid : -1;
endgrent();
}
#endif
if (gid < 0) {
fprintf(stderr, "Bad group id: %s\n", optarg);
exit(1);
}
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID, gid);
} else {
usage(argv[0]);
}
break;
#endif
case 'h':
usage(argv[0]);
break;
case 'H':
do_help = 1;
break;
case 'I':
if (optarg != NULL) {
add_to_init_list(optarg);
} else {
usage(argv[0]);
}
break;
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_FILE
case 'l':
printf("Warning: -l option is deprecated, use -Lf <file> instead\n");
if (optarg != NULL) {
if (strlen(optarg) > PATH_MAX) {
fprintf(stderr,
"%s: logfile path too long (limit %d chars)\n",
argv[0], PATH_MAX);
exit(1);
}
snmp_enable_filelog(optarg,
netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPEND_LOGFILES));
log_set = 1;
} else {
usage(argv[0]);
}
break;
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_FILE */
case 'L':
if (snmp_log_options( optarg, argc, argv ) < 0 ) {
usage(argv[0]);
}
log_set = 1;
break;
case 'm':
if (optarg != NULL) {
setenv("MIBS", optarg, 1);
} else {
usage(argv[0]);
}
break;
case 'M':
if (optarg != NULL) {
setenv("MIBDIRS", optarg, 1);
} else {
usage(argv[0]);
}
break;
case 'n':
if (optarg != NULL) {
app_name = optarg;
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPTYPE, app_name);
} else {
usage(argv[0]);
}
break;
case 'P':
printf("Warning: -P option is deprecated, use -p instead\n");
case 'p':
if (optarg != NULL) {
pid_file = optarg;
} else {
usage(argv[0]);
}
break;
case 'q':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_QUICK_PRINT, 1);
break;
case 'r':
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS);
break;
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG
case 's':
printf("Warning: -s option is deprecated, use -Lsd instead\n");
snmp_enable_syslog();
log_set = 1;
break;
case 'S':
printf("Warning: -S option is deprecated, use -Ls <facility> instead\n");
if (optarg != NULL) {
switch (*optarg) {
case 'd':
case 'D':
Facility = LOG_DAEMON;
break;
case 'i':
case 'I':
Facility = LOG_INFO;
break;
case '0':
Facility = LOG_LOCAL0;
break;
case '1':
Facility = LOG_LOCAL1;
break;
case '2':
Facility = LOG_LOCAL2;
break;
case '3':
Facility = LOG_LOCAL3;
break;
case '4':
Facility = LOG_LOCAL4;
break;
case '5':
Facility = LOG_LOCAL5;
break;
case '6':
Facility = LOG_LOCAL6;
break;
case '7':
Facility = LOG_LOCAL7;
break;
default:
fprintf(stderr, "invalid syslog facility: -S%c\n",*optarg);
usage(argv[0]);
}
snmp_enable_syslog_ident(snmp_log_syslogname(NULL), Facility);
log_set = 1;
} else {
fprintf(stderr, "no syslog facility specified\n");
usage(argv[0]);
}
break;
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG */
case 'U':
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_LEAVE_PIDFILE);
break;
#if HAVE_UNISTD_H
case 'u':
if (optarg != NULL) {
char *ecp;
int uid;
uid = strtoul(optarg, &ecp, 10);
#if HAVE_GETPWNAM && HAVE_PWD_H
if (*ecp) {
struct passwd *info;
info = getpwnam(optarg);
uid = info ? info->pw_uid : -1;
endpwent();
}
#endif
if (uid < 0) {
fprintf(stderr, "Bad user id: %s\n", optarg);
exit(1);
}
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID, uid);
} else {
usage(argv[0]);
}
break;
#endif
case 'v':
version();
case 'V':
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_VERBOSE, 1);
break;
#if defined(USING_AGENTX_SUBAGENT_MODULE)|| defined(USING_AGENTX_MASTER_MODULE)
case 'x':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_X_SOCKET, optarg);
} else {
usage(argv[0]);
}
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_AGENTX_MASTER, 1);
break;
#endif
case 'X':
#if defined(USING_AGENTX_SUBAGENT_MODULE)
agent_mode = SUB_AGENT;
#else
fprintf(stderr, "%s: Illegal argument -X:"
"AgentX support not compiled in.\n", argv[0]);
usage(argv[0]);
exit(1);
#endif
break;
case 'Y':
netsnmp_config_remember(optarg);
break;
default:
usage(argv[0]);
break;
}
}
if (do_help) {
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS, 1);
init_agent(app_name); /* register our .conf handlers */
init_mib_modules();
init_snmp(app_name);
fprintf(stderr, "Configuration directives understood:\n");
read_config_print_usage(" ");
exit(0);
}
if (optind < argc) {
#ifndef NETSNMP_NO_LISTEN_SUPPORT
/*
* There are optional transport addresses on the command line.
*/
DEBUGMSGTL(("snmpd/main", "optind %d, argc %d\n", optind, argc));
for (i = optind; i < argc; i++) {
char *c, *astring;
if ((c = netsnmp_ds_get_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PORTS))) {
astring = (char*)malloc(strlen(c) + 2 + strlen(argv[i]));
if (astring == NULL) {
fprintf(stderr, "malloc failure processing argv[%d]\n", i);
exit(1);
}
sprintf(astring, "%s,%s", c, argv[i]);
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PORTS, astring);
SNMP_FREE(astring);
} else {
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PORTS, argv[i]);
}
}
DEBUGMSGTL(("snmpd/main", "port spec: %s\n",
netsnmp_ds_get_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PORTS)));
#else /* NETSNMP_NO_LISTEN_SUPPORT */
fprintf(stderr, "You specified ports to open; this agent was built to only send notifications\n");
exit(1);
#endif /* NETSNMP_NO_LISTEN_SUPPORT */
}
#ifdef NETSNMP_LOGFILE
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_FILE
if (0 == log_set)
snmp_enable_filelog(NETSNMP_LOGFILE,
netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPEND_LOGFILES));
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_FILE */
#endif
#ifdef USING_UTIL_FUNCS_RESTART_MODULE
{
/*
* Initialize a argv set to the current for restarting the agent.
*/
char *cptr, **argvptr;
argvrestartp = (char **)malloc((argc + 2) * sizeof(char *));
argvptr = argvrestartp;
for (i = 0, ret = 1; i < argc; i++) {
ret += strlen(argv[i]) + 1;
}
argvrestart = (char *) malloc(ret);
argvrestartname = (char *) malloc(strlen(argv[0]) + 1);
if (!argvrestartp || !argvrestart || !argvrestartname) {
fprintf(stderr, "malloc failure processing argvrestart\n");
exit(1);
}
strcpy(argvrestartname, argv[0]);
for (cptr = argvrestart, i = 0; i < argc; i++) {
strcpy(cptr, argv[i]);
*(argvptr++) = cptr;
cptr += strlen(argv[i]) + 1;
}
}
#endif /* USING_UTIL_FUNCS_RESTART_MODULE */
if (agent_mode == -1) {
if (strstr(argv[0], "agentxd") != NULL) {
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, SUB_AGENT);
} else {
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, MASTER_AGENT);
}
} else {
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, agent_mode);
}
SOCK_STARTUP;
if (init_agent(app_name) != 0) {
snmp_log(LOG_ERR, "Agent initialization failed\n");
exit(1);
}
init_mib_modules();
/*
* start library
*/
init_snmp(app_name);
if ((ret = init_master_agent()) != 0) {
/*
* Some error opening one of the specified agent transports.
*/
snmp_log(LOG_ERR, "Server Exiting with code 1\n");
exit(1);
}
/*
* Initialize the world. Detach from the shell. Create initial user.
*/
if(!dont_fork) {
int quit = ! netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_QUIT_IMMEDIATELY);
ret = netsnmp_daemonize(quit,
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_STDIO
snmp_stderrlog_status()
#else /* NETSNMP_FEATURE_REMOVE_LOGGING_STDIO */
0
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_STDIO */
);
/*
* xxx-rks: do we care if fork fails? I think we should...
*/
if(ret != 0) {
snmp_log(LOG_ERR, "Server Exiting with code 1\n");
exit(1);
}
}
#if HAVE_GETPID
if (pid_file != NULL) {
/*
* unlink the pid_file, if it exists, prior to open. Without
* doing this the open will fail if the user specified pid_file
* already exists.
*/
unlink(pid_file);
fd = open(pid_file, O_CREAT | O_EXCL | O_WRONLY, 0600);
if (fd == -1) {
snmp_log_perror(pid_file);
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
exit(1);
}
} else {
if ((PID = fdopen(fd, "w")) == NULL) {
snmp_log_perror(pid_file);
exit(1);
} else {
fprintf(PID, "%d\n", (int) getpid());
fclose(PID);
}
#ifndef _MSC_VER
/* The sequence open()/fdopen()/fclose()/close() makes MSVC crash,
hence skip the close() call when using the MSVC runtime. */
close(fd);
#endif
}
}
#endif
#if defined(HAVE_UNISTD_H) && (defined(HAVE_CHOWN) || defined(HAVE_SETGID) || defined(HAVE_SETUID))
{
const char *persistent_dir;
int uid, gid;
persistent_dir = get_persistent_directory();
mkdirhier( persistent_dir, NETSNMP_AGENT_DIRECTORY_MODE, 0 );
uid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID);
gid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID);
#ifdef HAVE_CHOWN
if ( uid != 0 || gid != 0 )
chown( persistent_dir, uid, gid );
#endif
#ifdef HAVE_SETGID
if ((gid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID)) > 0) {
DEBUGMSGTL(("snmpd/main", "Changing gid to %d.\n", gid));
if (setgid(gid) == -1
#ifdef HAVE_SETGROUPS
|| setgroups(1, (gid_t *)&gid) == -1
#endif
) {
snmp_log_perror("setgid failed");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
exit(1);
}
}
}
#endif
#ifdef HAVE_SETUID
if ((uid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID)) > 0) {
#if HAVE_GETPWNAM && HAVE_PWD_H && HAVE_INITGROUPS
struct passwd *info;
/*
* Set supplementary groups before changing UID
* (which probably involves giving up privileges)
*/
info = getpwuid(uid);
if (info) {
DEBUGMSGTL(("snmpd/main", "Supplementary groups for %s.\n", info->pw_name));
if (initgroups(info->pw_name, (gid != 0 ? (gid_t)gid : info->pw_gid)) == -1) {
snmp_log_perror("initgroups failed");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
exit(1);
}
}
}
endpwent();
#endif
DEBUGMSGTL(("snmpd/main", "Changing uid to %d.\n", uid));
if (setuid(uid) == -1) {
snmp_log_perror("setuid failed");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
exit(1);
}
}
}
#endif
}
#endif
/*
* Store persistent data immediately in case we crash later.
*/
snmp_store(app_name);
#ifdef SIGHUP
DEBUGMSGTL(("signal", "registering SIGHUP signal handler\n"));
signal(SIGHUP, SnmpdReconfig);
#endif
/*
* Send coldstart trap if possible.
*/
send_easy_trap(0, 0);
/*
* We're up, log our version number.
*/
snmp_log(LOG_INFO, "NET-SNMP version %s\n", netsnmp_get_version());
#ifdef WIN32SERVICE
agent_status = AGENT_RUNNING;
#endif
netsnmp_addrcache_initialise();
/*
* Let systemd know we're up.
*/
#ifndef NETSNMP_NO_SYSTEMD
netsnmp_sd_notify(1, "READY=1\n");
if (prepared_sockets)
/*
* Clear the environment variable, we already processed all the sockets
* by now.
*/
netsnmp_sd_listen_fds(1);
#endif
/*
* Forever monitor the dest_port for incoming PDUs.
*/
DEBUGMSGTL(("snmpd/main", "We're up. Starting to process data.\n"));
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_QUIT_IMMEDIATELY))
receive();
DEBUGMSGTL(("snmpd/main", "sending shutdown trap\n"));
SnmpTrapNodeDown();
DEBUGMSGTL(("snmpd/main", "Bye...\n"));
snmp_shutdown(app_name);
shutdown_master_agent();
shutdown_agent();
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_LEAVE_PIDFILE) &&
(pid_file != NULL)) {
unlink(pid_file);
}
#ifdef WIN32SERVICE
agent_status = AGENT_STOPPED;
#endif
#ifdef USING_UTIL_FUNCS_RESTART_MODULE
SNMP_FREE(argvrestartname);
SNMP_FREE(argvrestart);
SNMP_FREE(argvrestartp);
#endif /* USING_UTIL_FUNCS_RESTART_MODULE */
SOCK_CLEANUP;
return 0;
} /* End main() -- snmpd */
int main(int argc, char **argv) {
int c;
struct snmp_session init_ses;
char finame[1024];
opterr=0;
while ((c=getopt(argc, argv, "xdvi:k:u:c:")) != -1)
switch(c) {
case 'v':
version();
case 'x':
extended=1;
break;
case 'd':
debug=1;
break;
case 'c':
if(isdigit((int)optarg[0]))
count=atoi(optarg);
else
usage();
break;
case 'i':
if(isdigit((int)optarg[0]))
interval=atoi(optarg);
else
usage();
break;
case 'k':
if(isdigit((int)optarg[0]))
S_KB=atoi(optarg);
else
usage();
break;
case 'u':
if(strlen(optarg)==2) {
S_Unit[0]=optarg[0];
S_Unit[1]=optarg[1];
}
else if(strlen(optarg)==1) {
S_Unit[0]='n';
S_Unit[1]=optarg[0];
}
else
usage();
break;
case '?':
default:
usage();
}
if(S_KB != 1024 && S_KB !=1000)
usage();
if(interval<1)
usage();
if(count<1)
usage();
if((argc-optind)!=3)
usage();
if(strcmp(netsnmp_get_version(), PACKAGE_VERSION)!=0) {
fprintf(stderr,
"ERROR: Net-SNMP version mismatch!\n"
"Compiled with headers: %s\n"
"Executed with library: %s\n",
PACKAGE_VERSION, netsnmp_get_version());
exit(1);
}
S_MB=S_KB*S_KB;
S_GB=S_KB*S_KB*S_KB;
gargv=argv;
SOCK_STARTUP;
init_snmp("ttg");
snmp_sess_init(&init_ses);
if(extended)
init_ses.version=SNMP_VERSION_2c;
else
init_ses.version=SNMP_VERSION_1;
init_ses.peername=argv[optind];
init_ses.community=(unsigned char*)argv[optind+1];
init_ses.community_len=strlen((char *)argv[optind+1]);
snmp_enable_stderrlog();
ses=snmp_open(&init_ses);
if(!ses) {
snmp_perror("error");
exit(1);
}
if(strcasecmp(argv[optind+2], "list")==0 || strcasecmp(argv[optind+2], "ls")==0)
lsif(NULL);
else if(isdigit((int)argv[optind+2][0]))
thr(atoi(argv[optind+2]));
else if(strlen(argv[optind+2])>=2) {
if(argv[optind+2][0]=='@')
snprintf(finame, sizeof(finame), "%s", argv[optind+2]+1);
else if(argv[optind+2][0]=='s' && argv[optind+2][1]=='e')
snprintf(finame, sizeof(finame), "Serial%s", argv[optind+2]+2);
else if(argv[optind+2][0]=='e' && argv[optind+2][1]=='t')
snprintf(finame, sizeof(finame), "Ethernet%s", argv[optind+2]+2);
else if(argv[optind+2][0]=='f' && argv[optind+2][1]=='a')
snprintf(finame, sizeof(finame), "FastEthernet%s", argv[optind+2]+2);
else if(argv[optind+2][0]=='g' && argv[optind+2][1]=='i')
snprintf(finame, sizeof(finame), "GigabitEthernet%s", argv[optind+2]+2);
else if(argv[optind+2][0]=='p' && argv[optind+2][1]=='i')
snprintf(finame, sizeof(finame), "Cisco PIX Security Appliance 'inside' interface");
else if(argv[optind+2][0]=='p' && argv[optind+2][1]=='o')
snprintf(finame, sizeof(finame), "Cisco PIX Security Appliance 'outside' interface");
else if(argv[optind+2][0]=='a' && argv[optind+2][1]=='i')
snprintf(finame, sizeof(finame), "Adaptive Security Appliance 'inside' interface");
else if(argv[optind+2][0]=='a' && argv[optind+2][1]=='o')
snprintf(finame, sizeof(finame), "Adaptive Security Appliance 'outside' interface");
else if(argv[optind+2][0]=='v' && argv[optind+2][1]=='l')
snprintf(finame, sizeof(finame), "Vlan%s", argv[optind+2]+2);
else if(argv[optind+2][0]=='p' && argv[optind+2][1]=='c')
snprintf(finame, sizeof(finame), "Port-channel%s", argv[optind+2]+2);
else if(argv[optind+2][0]=='t' && argv[optind+2][1]=='u')
snprintf(finame, sizeof(finame), "Tunnel%s", argv[optind+2]+2);
else
thr(lsif(argv[optind+2]));
thr(lsif(finame));
}
else
usage();
snmp_close(ses);
SOCK_CLEANUP;
return 0;
}
/*******************************************************************-o-******
* receive
*
* Parameters:
*
* Returns:
* 0 On success.
* -1 System error.
*
* Infinite while-loop which monitors incoming messges for the agent.
* Invoke the established message handlers for incoming messages on a per
* port basis. Handle timeouts.
*/
static int
receive(void)
{
int numfds;
fd_set readfds, writefds, exceptfds;
struct timeval timeout, *tvp = &timeout;
struct timeval sched, *svp = &sched, now, *nvp = &now;
int count, block, i;
#ifdef USING_SMUX_MODULE
int sd;
#endif /* USING_SMUX_MODULE */
/*
* Set the 'sched'uled timeout to the current time + one TIMETICK.
*/
gettimeofday(nvp, (struct timezone *) NULL);
svp->tv_usec = nvp->tv_usec + TIMETICK;
svp->tv_sec = nvp->tv_sec;
while (svp->tv_usec >= ONE_SEC) {
svp->tv_usec -= ONE_SEC;
svp->tv_sec++;
}
/*
* ignore early sighup during startup
*/
reconfig = 0;
/*
* Loop-forever: execute message handlers for sockets with data,
* reset the 'sched'uler.
*/
while (netsnmp_running) {
if (reconfig) {
reconfig = 0;
snmp_log(LOG_INFO, "Reconfiguring daemon\n");
/* Stop and restart logging. This allows logfiles to be
rotated etc. */
snmp_disable_log();
setup_log(1, 0, 0, 0, NULL);
snmp_log(LOG_INFO, "NET-SNMP version %s restarted\n",
netsnmp_get_version());
update_config();
send_easy_trap(SNMP_TRAP_ENTERPRISESPECIFIC, 3);
}
for (i = 0; i < NUM_EXTERNAL_SIGS; i++) {
if (external_signal_scheduled[i]) {
external_signal_scheduled[i]--;
external_signal_handler[i](i);
}
}
tvp = &timeout;
tvp->tv_sec = 0;
tvp->tv_usec = TIMETICK;
numfds = 0;
FD_ZERO(&readfds);
FD_ZERO(&writefds);
FD_ZERO(&exceptfds);
block = 0;
snmp_select_info(&numfds, &readfds, tvp, &block);
if (block == 1) {
tvp = NULL; /* block without timeout */
}
#ifdef USING_SMUX_MODULE
if (smux_listen_sd >= 0) {
FD_SET(smux_listen_sd, &readfds);
numfds =
smux_listen_sd >= numfds ? smux_listen_sd + 1 : numfds;
for (i = 0; i < sdlen; i++) {
FD_SET(sdlist[i], &readfds);
numfds = sdlist[i] >= numfds ? sdlist[i] + 1 : numfds;
}
}
#endif /* USING_SMUX_MODULE */
for (i = 0; i < external_readfdlen; i++) {
FD_SET(external_readfd[i], &readfds);
if (external_readfd[i] >= numfds)
numfds = external_readfd[i] + 1;
}
for (i = 0; i < external_writefdlen; i++) {
FD_SET(external_writefd[i], &writefds);
if (external_writefd[i] >= numfds)
numfds = external_writefd[i] + 1;
}
for (i = 0; i < external_exceptfdlen; i++) {
FD_SET(external_exceptfd[i], &exceptfds);
if (external_exceptfd[i] >= numfds)
numfds = external_exceptfd[i] + 1;
}
reselect:
DEBUGMSGTL(("snmpd/select", "select( numfds=%d, ..., tvp=%p)\n",
numfds, tvp));
count = select(numfds, &readfds, &writefds, &exceptfds, tvp);
DEBUGMSGTL(("snmpd/select", "returned, count = %d\n", count));
if (count > 0) {
#ifdef USING_SMUX_MODULE
/*
* handle the SMUX sd's
*/
if (smux_listen_sd >= 0) {
for (i = 0; i < sdlen; i++) {
if (FD_ISSET(sdlist[i], &readfds)) {
if (smux_process(sdlist[i]) < 0) {
for (; i < (sdlen - 1); i++) {
sdlist[i] = sdlist[i + 1];
}
sdlen--;
}
}
}
/*
* new connection
*/
if (FD_ISSET(smux_listen_sd, &readfds)) {
if ((sd = smux_accept(smux_listen_sd)) >= 0) {
sdlist[sdlen++] = sd;
}
}
}
#endif /* USING_SMUX_MODULE */
snmp_read(&readfds);
for (i = 0; count && (i < external_readfdlen); i++) {
if (FD_ISSET(external_readfd[i], &readfds)) {
DEBUGMSGTL(("snmpd/select", "readfd[%d] = %d\n",
i, external_readfd[i]));
external_readfdfunc[i] (external_readfd[i],
external_readfd_data[i]);
FD_CLR(external_readfd[i], &readfds);
count--;
}
}
for (i = 0; count && (i < external_writefdlen); i++) {
if (FD_ISSET(external_writefd[i], &writefds)) {
DEBUGMSGTL(("snmpd/select", "writefd[%d] = %d\n",
i, external_writefd[i]));
external_writefdfunc[i] (external_writefd[i],
external_writefd_data[i]);
FD_CLR(external_writefd[i], &writefds);
count--;
}
}
for (i = 0; count && (i < external_exceptfdlen); i++) {
if (FD_ISSET(external_exceptfd[i], &exceptfds)) {
DEBUGMSGTL(("snmpd/select", "exceptfd[%d] = %d\n",
i, external_exceptfd[i]));
external_exceptfdfunc[i] (external_exceptfd[i],
external_exceptfd_data[i]);
FD_CLR(external_exceptfd[i], &exceptfds);
count--;
}
}
} else
switch (count) {
case 0:
snmp_timeout();
break;
case -1:
if (errno == EINTR) {
/*
* likely that we got a signal. Check our special signal
* flags before retrying select.
*/
if (netsnmp_running && !reconfig) {
goto reselect;
}
continue;
} else {
snmp_log_perror("select");
}
return -1;
default:
snmp_log(LOG_ERR, "select returned %d\n", count);
return -1;
} /* endif -- count>0 */
/*
* If the time 'now' is greater than the 'sched'uled time, then:
*
* Check alarm and event timers.
* Reset the 'sched'uled time to current time + one TIMETICK.
* Age the cache network addresses (from whom messges have
* been received).
*/
gettimeofday(nvp, (struct timezone *)NULL);
if (nvp->tv_sec > svp->tv_sec || (nvp->tv_sec == svp->tv_sec &&
nvp->tv_usec > svp->tv_usec)) {
svp->tv_usec = nvp->tv_usec + TIMETICK;
svp->tv_sec = nvp->tv_sec;
while (svp->tv_usec >= ONE_SEC) {
svp->tv_usec -= ONE_SEC;
svp->tv_sec++;
}
}
/*
* endif -- now>sched
*/
/*
* run requested alarms
*/
run_alarms();
netsnmp_check_outstanding_agent_requests();
} /* endwhile */
snmp_log(LOG_INFO, "Received TERM or STOP signal... shutting down...\n");
return 0;
} /* end receive() */
main(int argc, char *argv[])
#endif
{
char options[128] = "aAc:CdD::fhHI:l:L:m:M:p:P:qrsS:UvV-:";
int arg, i, ret;
int dont_fork = 0;
int dont_zero_log = 0;
int syslog_log = 0;
int uid = 0, gid = 0;
int agent_mode = -1;
char logfile[PATH_MAX + 1] = { 0 };
char *cptr, **argvptr;
char *pid_file = NULL;
char option_compatability[] = "-Le";
#if HAVE_GETPID
int fd;
FILE *PID;
#endif
#ifndef WIN32
/*
* close all non-standard file descriptors we may have
* inherited from the shell.
*/
for (i = getdtablesize() - 1; i > 2; --i) {
(void) close(i);
}
#endif /* #WIN32 */
/*
* register signals ASAP to prevent default action (usually core)
* for signals during startup...
*/
#ifdef SIGTERM
DEBUGMSGTL(("signal", "registering SIGTERM signal handler\n"));
signal(SIGTERM, SnmpdShutDown);
#endif
#ifdef SIGINT
DEBUGMSGTL(("signal", "registering SIGINT signal handler\n"));
signal(SIGINT, SnmpdShutDown);
#endif
#ifdef SIGHUP
DEBUGMSGTL(("signal", "registering SIGHUP signal handler\n"));
signal(SIGHUP, SnmpdReconfig);
#endif
#ifdef SIGUSR1
DEBUGMSGTL(("signal", "registering SIGUSR1 signal handler\n"));
signal(SIGUSR1, SnmpdDump);
#endif
#ifdef SIGPIPE
DEBUGMSGTL(("signal", "registering SIGPIPE signal handler\n"));
signal(SIGPIPE, SIG_IGN); /* 'Inline' failure of wayward readers */
#endif
#ifdef SIGXFSZ
signal(SIGXFSZ, SnmpdCatchRandomSignal);
#endif
#ifdef LOGFILE
strncpy(logfile, LOGFILE, PATH_MAX);
#endif
#ifdef NO_ROOT_ACCESS
/*
* Default to no.
*/
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS, 1);
#endif
/*
* Default to NOT running an AgentX master.
*/
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_AGENTX_MASTER, 0);
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_AGENTX_TIMEOUT, -1);
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_AGENTX_RETRIES, -1);
/*
* Add some options if they are available.
*/
#if HAVE_UNISTD_H
strcat(options, "g:u:");
#endif
#if defined(USING_AGENTX_SUBAGENT_MODULE)|| defined(USING_AGENTX_MASTER_MODULE)
strcat(options, "x:");
#endif
#ifdef USING_AGENTX_SUBAGENT_MODULE
strcat(options, "X");
#endif
/*
* This is incredibly ugly, but it's probably the simplest way
* to handle the old '-L' option as well as the new '-Lx' style
*/
for (i=0; i<argc; i++) {
if (!strcmp(argv[i], "-L"))
argv[i] = option_compatability;
}
snmp_log_syslogname(app_name);
/*
* Now process options normally.
*/
while ((arg = getopt(argc, argv, options)) != EOF) {
switch (arg) {
case '-':
if (strcasecmp(optarg, "help") == 0) {
usage(argv[0]);
}
if (strcasecmp(optarg, "version") == 0) {
version();
}
handle_long_opt(optarg);
break;
case 'a':
log_addresses++;
break;
case 'A':
dont_zero_log = 1;
break;
case 'c':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_OPTIONALCONFIG, optarg);
} else {
usage(argv[0]);
}
break;
case 'C':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DONT_READ_CONFIGS, 1);
break;
case 'd':
snmp_set_dump_packet(++snmp_dump_packet);
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_VERBOSE, 1);
break;
case 'D':
debug_register_tokens(optarg);
snmp_set_do_debugging(1);
break;
case 'f':
dont_fork = 1;
break;
#if HAVE_UNISTD_H
case 'g':
if (optarg != NULL) {
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID, atoi(optarg));
} else {
usage(argv[0]);
}
break;
#endif
case 'h':
usage(argv[0]);
break;
case 'H':
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS, 1);
init_agent("snmpd"); /* register our .conf handlers */
init_mib_modules();
init_snmp("snmpd");
fprintf(stderr, "Configuration directives understood:\n");
read_config_print_usage(" ");
exit(0);
case 'I':
if (optarg != NULL) {
add_to_init_list(optarg);
} else {
usage(argv[0]);
}
break;
case 'l':
printf("Warning: -l option is deprecated, use -Lf <file> instead\n");
if (optarg != NULL) {
if (strlen(optarg) > PATH_MAX) {
fprintf(stderr,
"%s: logfile path too long (limit %d chars)\n",
argv[0], PATH_MAX);
exit(1);
}
strncpy(logfile, optarg, PATH_MAX);
} else {
usage(argv[0]);
}
break;
case 'L':
if (snmp_log_options( optarg, argc, argv ) < 0 ) {
usage(argv[0]);
}
break;
case 'm':
if (optarg != NULL) {
setenv("MIBS", optarg, 1);
} else {
usage(argv[0]);
}
break;
case 'M':
if (optarg != NULL) {
setenv("MIBDIRS", optarg, 1);
} else {
usage(argv[0]);
}
break;
case 'P':
printf("Warning: -P option is deprecated, use -p instead\n");
case 'p':
if (optarg != NULL) {
pid_file = optarg;
} else {
usage(argv[0]);
}
break;
case 'q':
snmp_set_quick_print(1);
break;
case 'r':
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS);
break;
case 's':
printf("Warning: -s option is deprecated, use -Lsd instead\n");
syslog_log = 1;
break;
case 'S':
printf("Warning: -S option is deprecated, use -Ls <facility> instead\n");
if (optarg != NULL) {
switch (*optarg) {
case 'd':
case 'D':
Facility = LOG_DAEMON;
break;
case 'i':
case 'I':
Facility = LOG_INFO;
break;
case '0':
Facility = LOG_LOCAL0;
break;
case '1':
Facility = LOG_LOCAL1;
break;
case '2':
Facility = LOG_LOCAL2;
break;
case '3':
Facility = LOG_LOCAL3;
break;
case '4':
Facility = LOG_LOCAL4;
break;
case '5':
Facility = LOG_LOCAL5;
break;
case '6':
Facility = LOG_LOCAL6;
break;
case '7':
Facility = LOG_LOCAL7;
break;
default:
fprintf(stderr, "invalid syslog facility: -S%c\n",*optarg);
usage(argv[0]);
}
} else {
fprintf(stderr, "no syslog facility specified\n");
usage(argv[0]);
}
break;
case 'U':
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_LEAVE_PIDFILE);
break;
#if HAVE_UNISTD_H
case 'u':
if (optarg != NULL) {
char *ecp;
int uid;
uid = strtoul(optarg, &ecp, 10);
if (*ecp) {
#if HAVE_GETPWNAM && HAVE_PWD_H
struct passwd *info;
info = getpwnam(optarg);
if (info) {
uid = info->pw_uid;
} else {
#endif
fprintf(stderr, "Bad user id: %s\n", optarg);
exit(1);
#if HAVE_GETPWNAM && HAVE_PWD_H
}
#endif
}
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID, uid);
} else {
usage(argv[0]);
}
break;
#endif
case 'v':
version();
case 'V':
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_VERBOSE, 1);
break;
#if defined(USING_AGENTX_SUBAGENT_MODULE)|| defined(USING_AGENTX_MASTER_MODULE)
case 'x':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_X_SOCKET, optarg);
} else {
usage(argv[0]);
}
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_AGENTX_MASTER, 1);
break;
#endif
case 'X':
#if defined(USING_AGENTX_SUBAGENT_MODULE)
agent_mode = SUB_AGENT;
#else
fprintf(stderr, "%s: Illegal argument -X:"
"AgentX support not compiled in.\n", argv[0]);
usage(argv[0]);
exit(1);
#endif
break;
default:
usage(argv[0]);
break;
}
}
if (optind < argc) {
/*
* There are optional transport addresses on the command line.
*/
DEBUGMSGTL(("snmpd/main", "optind %d, argc %d\n", optind, argc));
for (i = optind; i < argc; i++) {
char *c, *astring;
if ((c = netsnmp_ds_get_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PORTS))) {
astring = (char*)malloc(strlen(c) + 2 + strlen(argv[i]));
if (astring == NULL) {
fprintf(stderr, "malloc failure processing argv[%d]\n", i);
exit(1);
}
sprintf(astring, "%s,%s", c, argv[i]);
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PORTS, astring);
SNMP_FREE(astring);
} else {
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PORTS, argv[i]);
}
}
DEBUGMSGTL(("snmpd/main", "port spec: %s\n",
netsnmp_ds_get_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PORTS)));
}
setup_log(0, dont_zero_log, 0, syslog_log, logfile);
/*
* Initialize a argv set to the current for restarting the agent.
*/
argvrestartp = (char **)malloc((argc + 2) * sizeof(char *));
argvptr = argvrestartp;
for (i = 0, ret = 1; i < argc; i++) {
ret += strlen(argv[i]) + 1;
}
argvrestart = (char *) malloc(ret);
argvrestartname = (char *) malloc(strlen(argv[0]) + 1);
if (!argvrestartp || !argvrestart || !argvrestartname) {
fprintf(stderr, "malloc failure processing argvrestart\n");
exit(1);
}
strcpy(argvrestartname, argv[0]);
if (agent_mode == -1) {
if (strstr(argvrestartname, "agentxd") != NULL) {
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, SUB_AGENT);
} else {
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, MASTER_AGENT);
}
} else {
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, agent_mode);
}
for (cptr = argvrestart, i = 0; i < argc; i++) {
strcpy(cptr, argv[i]);
*(argvptr++) = cptr;
cptr += strlen(argv[i]) + 1;
}
*cptr = 0;
*argvptr = NULL;
#ifdef BUFSIZ
setvbuf(stdout, NULL, _IOLBF, BUFSIZ);
#endif
/*
* Initialize the world. Detach from the shell. Create initial user.
*/
if(!dont_fork) {
int quit = ! netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_QUIT_IMMEDIATELY);
ret = netsnmp_daemonize(quit, snmp_stderrlog_status());
/*
* xxx-rks: do we care if fork fails? I think we should...
*/
if(ret != 0)
Exit(1); /* Exit logs exit val for us */
}
SOCK_STARTUP;
init_agent("snmpd"); /* do what we need to do first. */
init_mib_modules();
/*
* start library
*/
init_snmp("snmpd");
if ((ret = init_master_agent()) != 0) {
/*
* Some error opening one of the specified agent transports.
*/
Exit(1); /* Exit logs exit val for us */
}
/*
* Store persistent data immediately in case we crash later.
*/
snmp_store("snmpd");
/*
* Send coldstart trap if possible.
*/
send_easy_trap(0, 0);
#if HAVE_GETPID
if (pid_file != NULL) {
/*
* unlink the pid_file, if it exists, prior to open. Without
* doing this the open will fail if the user specified pid_file
* already exists.
*/
unlink(pid_file);
fd = open(pid_file, O_CREAT | O_EXCL | O_WRONLY, 0600);
if (fd == -1) {
snmp_log_perror(pid_file);
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
exit(1);
}
} else {
if ((PID = fdopen(fd, "w")) == NULL) {
snmp_log_perror(pid_file);
exit(1);
} else {
fprintf(PID, "%d\n", (int) getpid());
fclose(PID);
}
close(fd);
}
}
#endif
#if HAVE_UNISTD_H
#ifdef HAVE_SETGID
if ((gid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID)) != 0) {
DEBUGMSGTL(("snmpd/main", "Changing gid to %d.\n", gid));
if (setgid(gid) == -1
#ifdef HAVE_SETGROUPS
|| setgroups(1, (gid_t *)&gid) == -1
#endif
) {
snmp_log_perror("setgid failed");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
exit(1);
}
}
}
#endif
#ifdef HAVE_SETUID
if ((uid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID)) != 0) {
DEBUGMSGTL(("snmpd/main", "Changing uid to %d.\n", uid));
if (setuid(uid) == -1) {
snmp_log_perror("setuid failed");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
exit(1);
}
}
}
#endif
#endif
/*
* We're up, log our version number.
*/
snmp_log(LOG_INFO, "NET-SNMP version %s\n", netsnmp_get_version());
#ifdef WIN32SERVICE
agent_status = AGENT_RUNNING;
#endif
netsnmp_addrcache_initialise();
/*
* Forever monitor the dest_port for incoming PDUs.
*/
DEBUGMSGTL(("snmpd/main", "We're up. Starting to process data.\n"));
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_QUIT_IMMEDIATELY))
receive();
#include "mib_module_shutdown.h"
DEBUGMSGTL(("snmpd/main", "sending shutdown trap\n"));
SnmpTrapNodeDown();
DEBUGMSGTL(("snmpd/main", "Bye...\n"));
snmp_shutdown("snmpd");
#ifdef SHUTDOWN_AGENT_CLEANLY /* broken code */
/* these attempt to free all known memory, but result in double frees */
shutdown_master_agent();
shutdown_agent();
#endif
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_LEAVE_PIDFILE) &&
(pid_file != NULL)) {
unlink(pid_file);
}
#ifdef WIN32SERVICE
agent_status = AGENT_STOPPED;
#endif
SNMP_FREE(argvrestartname);
SNMP_FREE(argvrestart);
SNMP_FREE(argvrestartp);
SOCK_CLEANUP;
return 0;
} /* End main() -- snmpd */
main(int argc, char *argv[])
#endif
{
char options[128] = "aAc:CdD::efF:g:hHI:L:m:M:no:O:Ptu:vx:X-:";
netsnmp_session *sess_list = NULL, *ss = NULL;
netsnmp_transport *transport = NULL;
int arg, i = 0;
int uid = 0, gid = 0;
int exit_code = 1;
char *cp, *listen_ports = NULL;
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
int agentx_subagent = 1;
#endif
netsnmp_trapd_handler *traph;
#ifndef WIN32
int prepared_sockets = 0;
#endif
#ifndef NETSNMP_NO_SYSTEMD
/* check if systemd has sockets for us and don't close them */
prepared_sockets = netsnmp_sd_listen_fds(0);
#endif
#ifndef WIN32
/*
* close all non-standard file descriptors we may have
* inherited from the shell.
*/
if (!prepared_sockets)
netsnmp_close_fds(2);
#endif
#ifdef SIGTERM
signal(SIGTERM, term_handler);
#endif
#ifdef SIGHUP
signal(SIGHUP, SIG_IGN); /* do not terminate on early SIGHUP */
#endif
#ifdef SIGINT
signal(SIGINT, term_handler);
#endif
#ifdef SIGPIPE
signal(SIGPIPE, SIG_IGN); /* 'Inline' failure of wayward readers */
#endif
/*
* register our configuration handlers now so -H properly displays them
*/
snmptrapd_register_configs( );
#ifdef NETSNMP_USE_MYSQL
snmptrapd_register_sql_configs( );
#endif
#ifdef NETSNMP_SECMOD_USM
init_usm_conf( "snmptrapd" );
#endif /* NETSNMP_SECMOD_USM */
register_config_handler("snmptrapd", "snmpTrapdAddr",
parse_trapd_address, free_trapd_address, "string");
register_config_handler("snmptrapd", "doNotLogTraps",
parse_config_doNotLogTraps, NULL, "(1|yes|true|0|no|false)");
#if HAVE_GETPID
register_config_handler("snmptrapd", "pidFile",
parse_config_pidFile, NULL, "string");
#endif
#ifdef HAVE_UNISTD_H
register_config_handler("snmptrapd", "agentuser",
parse_config_agentuser, NULL, "userid");
register_config_handler("snmptrapd", "agentgroup",
parse_config_agentgroup, NULL, "groupid");
#endif
register_config_handler("snmptrapd", "doNotFork",
parse_config_doNotFork, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "ignoreAuthFailure",
parse_config_ignoreAuthFailure, NULL, "(1|yes|true|0|no|false)");
register_config_handler("snmptrapd", "outputOption",
parse_config_outputOption, NULL, "string");
/*
* Add some options if they are available.
*/
#if HAVE_GETPID
strcat(options, "p:");
#endif
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG
#ifdef WIN32
snmp_log_syslogname(app_name_long);
#else
snmp_log_syslogname(app_name);
#endif
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG */
/*
* Now process options normally.
*/
while ((arg = getopt(argc, argv, options)) != EOF) {
switch (arg) {
case '-':
if (strcasecmp(optarg, "help") == 0 ||
strcasecmp(optarg, "version") == 0) {
version();
exit_code = 0;
goto out;
}
handle_long_opt(optarg);
break;
case 'a':
dropauth = 1;
break;
case 'A':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_APPEND_LOGFILES, 1);
break;
case 'c':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_OPTIONALCONFIG, optarg);
} else {
usage();
goto out;
}
break;
case 'C':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DONT_READ_CONFIGS, 1);
break;
case 'd':
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_DUMP_PACKET, 1);
break;
case 'D':
debug_register_tokens(optarg);
snmp_set_do_debugging(1);
break;
case 'f':
dofork = 0;
break;
case 'F':
if (optarg != NULL) {
if (( strncmp( optarg, "print", 5 ) == 0 ) ||
( strncmp( optarg, "syslog", 6 ) == 0 ) ||
( strncmp( optarg, "execute", 7 ) == 0 )) {
/* New style: "type=format" */
trap1_fmt_str_remember = strdup(optarg);
cp = strchr( trap1_fmt_str_remember, '=' );
if (cp)
*cp = ' ';
} else {
/* Old style: implicitly "print=format" */
trap1_fmt_str_remember = malloc(strlen(optarg) + 7);
sprintf( trap1_fmt_str_remember, "print %s", optarg );
}
} else {
usage();
goto out;
}
break;
#if HAVE_UNISTD_H
case 'g':
if (optarg != NULL) {
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID, gid = atoi(optarg));
} else {
usage();
goto out;
}
break;
#endif
case 'h':
usage();
exit_code = 0;
goto out;
case 'H':
init_agent("snmptrapd");
#ifdef USING_NOTIFICATION_LOG_MIB_NOTIFICATION_LOG_MODULE
init_notification_log();
#endif
#ifdef NETSNMP_EMBEDDED_PERL
init_perl();
#endif
init_snmp("snmptrapd");
fprintf(stderr, "Configuration directives understood:\n");
read_config_print_usage(" ");
exit_code = 0;
goto out;
case 'I':
if (optarg != NULL) {
add_to_init_list(optarg);
} else {
usage();
}
break;
case 'S':
fprintf(stderr,
"Warning: -S option has been withdrawn; use -Ls <facility> instead\n");
goto out;
case 'm':
if (optarg != NULL) {
setenv("MIBS", optarg, 1);
} else {
usage();
goto out;
}
break;
case 'M':
if (optarg != NULL) {
setenv("MIBDIRS", optarg, 1);
} else {
usage();
goto out;
}
break;
case 'n':
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_APP_NUMERIC_IP, 1);
break;
case 'o':
fprintf(stderr,
"Warning: -o option has been withdrawn; use -Lf <file> instead\n");
goto out;
case 'O':
cp = snmp_out_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr, "Unknown output option passed to -O: %c\n",
*cp);
usage();
goto out;
}
break;
case 'L':
if (snmp_log_options( optarg, argc, argv ) < 0 ) {
usage();
goto out;
}
break;
#if HAVE_GETPID
case 'p':
if (optarg != NULL) {
parse_config_pidFile(NULL, optarg);
} else {
usage();
goto out;
}
break;
#endif
case 'P':
fprintf(stderr,
"Warning: -P option has been withdrawn; use -f -Le instead\n");
goto out;
case 's':
fprintf(stderr,
"Warning: -s option has been withdrawn; use -Lsd instead\n");
goto out;
case 't':
SyslogTrap++;
break;
#if HAVE_UNISTD_H
case 'u':
if (optarg != NULL) {
char *ecp;
uid = strtoul(optarg, &ecp, 10);
#if HAVE_GETPWNAM && HAVE_PWD_H
if (*ecp) {
struct passwd *info;
info = getpwnam(optarg);
uid = info ? info->pw_uid : -1;
endpwent();
}
#endif
if (uid < 0) {
fprintf(stderr, "Bad user id: %s\n", optarg);
goto out;
}
netsnmp_ds_set_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID, uid);
} else {
usage();
goto out;
}
break;
#endif
case 'v':
version();
exit(0);
break;
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
case 'x':
if (optarg != NULL) {
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_X_SOCKET, optarg);
} else {
usage();
goto out;
}
break;
case 'X':
agentx_subagent = 0;
break;
#endif
default:
fprintf(stderr, "invalid option: -%c\n", arg);
usage();
goto out;
break;
}
}
if (optind < argc) {
/*
* There are optional transport addresses on the command line.
*/
for (i = optind; i < argc; i++) {
char *astring;
if (listen_ports != NULL) {
astring = malloc(strlen(listen_ports) + 2 + strlen(argv[i]));
if (astring == NULL) {
fprintf(stderr, "malloc failure processing argv[%d]\n", i);
goto out;
}
sprintf(astring, "%s,%s", listen_ports, argv[i]);
free(listen_ports);
listen_ports = astring;
} else {
listen_ports = strdup(argv[i]);
if (listen_ports == NULL) {
fprintf(stderr, "malloc failure processing argv[%d]\n", i);
goto out;
}
}
}
}
SOCK_STARTUP;
/*
* I'm being lazy here, and not checking the
* return value from these registration calls.
* Don't try this at home, children!
*/
if (0 == snmp_get_do_logging()) {
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG
traph = netsnmp_add_global_traphandler(NETSNMPTRAPD_PRE_HANDLER,
syslog_handler);
traph->authtypes = TRAP_AUTH_LOG;
snmp_enable_syslog();
#else /* NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG */
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_STDIO
traph = netsnmp_add_global_traphandler(NETSNMPTRAPD_PRE_HANDLER,
print_handler);
traph->authtypes = TRAP_AUTH_LOG;
snmp_enable_stderr();
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_STDIO */
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG */
} else {
traph = netsnmp_add_global_traphandler(NETSNMPTRAPD_PRE_HANDLER,
print_handler);
traph->authtypes = TRAP_AUTH_LOG;
}
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
/*
* we're an agentx subagent?
*/
if (agentx_subagent) {
/*
* make us a agentx client.
*/
netsnmp_ds_set_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_ROLE, 1);
}
#endif
/*
* don't fail if we can't do agentx (ie, socket not there, or not root)
*/
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS);
/*
* ignore any warning messages.
*/
netsnmp_ds_toggle_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_CONNECTION_WARNINGS);
/*
* initialize the agent library
*/
init_agent("snmptrapd");
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
#ifdef NETSNMP_FEATURE_CHECKING
netsnmp_feature_require(register_snmpEngine_scalars_context)
#endif /* NETSNMP_FEATURE_CHECKING */
/*
* initialize local modules
*/
if (agentx_subagent) {
#ifdef USING_SNMPV3_SNMPENGINE_MODULE
extern void register_snmpEngine_scalars_context(const char *);
#endif
subagent_init();
#ifdef USING_NOTIFICATION_LOG_MIB_NOTIFICATION_LOG_MODULE
/* register the notification log table */
if (should_init("notificationLogMib")) {
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_NOTIF_LOG_CTX,
"snmptrapd");
traph = netsnmp_add_global_traphandler(NETSNMPTRAPD_POST_HANDLER,
notification_handler);
traph->authtypes = TRAP_AUTH_LOG;
init_notification_log();
}
#endif
#ifdef USING_SNMPV3_SNMPENGINE_MODULE
/*
* register scalars from SNMP-FRAMEWORK-MIB::snmpEngineID group;
* allows engineID probes via the master agent under the
* snmptrapd context
*/
register_snmpEngine_scalars_context("snmptrapd");
#endif
}
#endif /* USING_AGENTX_SUBAGENT_MODULE && !NETSNMP_SNMPTRAPD_DISABLE_AGENTX */
/* register our authorization handler */
init_netsnmp_trapd_auth();
#if defined(USING_AGENTX_SUBAGENT_MODULE) && !defined(NETSNMP_SNMPTRAPD_DISABLE_AGENTX)
if (agentx_subagent) {
#ifdef USING_AGENT_NSVACMACCESSTABLE_MODULE
extern void init_register_nsVacm_context(const char *);
#endif
#ifdef USING_SNMPV3_USMUSER_MODULE
#ifdef NETSNMP_FEATURE_CHECKING
netsnmp_feature_require(init_register_usmUser_context)
#endif /* NETSNMP_FEATURE_CHECKING */
extern void init_register_usmUser_context(const char *);
/* register ourselves as having a USM user database */
init_register_usmUser_context("snmptrapd");
#endif
#ifdef USING_AGENT_NSVACMACCESSTABLE_MODULE
/* register net-snmp vacm extensions */
init_register_nsVacm_context("snmptrapd");
#endif
#ifdef USING_TLSTM_MIB_SNMPTLSTMCERTTOTSNTABLE_MODULE
init_snmpTlstmCertToTSNTable_context("snmptrapd");
#endif
}
#endif
#ifdef NETSNMP_EMBEDDED_PERL
init_perl();
{
/* set the default path to load */
char init_file[SNMP_MAXBUF];
snprintf(init_file, sizeof(init_file) - 1,
"%s/%s", SNMPSHAREPATH, "snmp_perl_trapd.pl");
netsnmp_ds_set_string(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_PERL_INIT_FILE,
init_file);
}
#endif
/*
* Initialize the world.
*/
init_snmp("snmptrapd");
#ifdef SIGHUP
signal(SIGHUP, hup_handler);
#endif
if (trap1_fmt_str_remember) {
parse_format( NULL, trap1_fmt_str_remember );
}
if (netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_QUIT_IMMEDIATELY)) {
/*
* just starting up to process specific configuration and then
* shutting down immediately.
*/
netsnmp_running = 0;
}
/*
* if no logging options on command line or in conf files, use syslog
*/
if (0 == snmp_get_do_logging()) {
#ifndef NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG
#ifdef WIN32
snmp_enable_syslog_ident(app_name_long, Facility);
#else
snmp_enable_syslog_ident(app_name, Facility);
#endif
#endif /* NETSNMP_FEATURE_REMOVE_LOGGING_SYSLOG */
}
if (listen_ports)
cp = listen_ports;
else
cp = default_port;
while (cp != NULL) {
char *sep = strchr(cp, ',');
if (sep != NULL) {
*sep = 0;
}
transport = netsnmp_transport_open_server("snmptrap", cp);
if (transport == NULL) {
snmp_log(LOG_ERR, "couldn't open %s -- errno %d (\"%s\")\n",
cp, errno, strerror(errno));
snmptrapd_close_sessions(sess_list);
goto sock_cleanup;
} else {
ss = snmptrapd_add_session(transport);
if (ss == NULL) {
/*
* Shouldn't happen? We have already opened the transport
* successfully so what could have gone wrong?
*/
snmptrapd_close_sessions(sess_list);
snmp_log(LOG_ERR, "couldn't open snmp - %s", strerror(errno));
goto sock_cleanup;
} else {
ss->next = sess_list;
sess_list = ss;
}
}
/*
* Process next listen address, if there is one.
*/
if (sep != NULL) {
*sep = ',';
cp = sep + 1;
} else {
cp = NULL;
}
}
SNMP_FREE(listen_ports); /* done with them */
#ifdef NETSNMP_USE_MYSQL
if( netsnmp_mysql_init() ) {
fprintf(stderr, "MySQL initialization failed\n");
goto sock_cleanup;
}
#endif
#ifndef WIN32
/*
* fork the process to the background if we are not printing to stderr
*/
if (dofork && netsnmp_running) {
int fd;
#if HAVE_FORKALL
switch (forkall()) {
#else
switch (fork()) {
#endif
case -1:
fprintf(stderr, "bad fork - %s\n", strerror(errno));
goto sock_cleanup;
case 0:
/*
* become process group leader
*/
if (setsid() == -1) {
fprintf(stderr, "bad setsid - %s\n", strerror(errno));
goto sock_cleanup;
}
/*
* if we are forked, we don't want to print out to stdout or stderr
*/
fd = open("/dev/null", O_RDWR);
if (fd >= 0) {
dup2(fd, STDIN_FILENO);
dup2(fd, STDOUT_FILENO);
dup2(fd, STDERR_FILENO);
close(fd);
}
break;
default:
_exit(0);
}
}
#endif /* WIN32 */
#if HAVE_GETPID
if (pid_file != NULL) {
if ((PID = fopen(pid_file, "w")) == NULL) {
snmp_log_perror("fopen");
goto sock_cleanup;
}
fprintf(PID, "%d\n", (int) getpid());
fclose(PID);
free_config_pidFile();
}
#endif
snmp_log(LOG_INFO, "NET-SNMP version %s\n", netsnmp_get_version());
/*
* ignore early sighup during startup
*/
reconfig = 0;
#if HAVE_UNISTD_H
#ifdef HAVE_SETGID
if ((gid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_GROUPID)) > 0) {
DEBUGMSGTL(("snmptrapd/main", "Changing gid to %d.\n", gid));
if (setgid(gid) == -1
#ifdef HAVE_SETGROUPS
|| setgroups(1, (gid_t *)&gid) == -1
#endif
) {
snmp_log_perror("setgid failed");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
goto sock_cleanup;
}
}
}
#endif
#ifdef HAVE_SETUID
if ((uid = netsnmp_ds_get_int(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_USERID)) != 0) {
DEBUGMSGTL(("snmptrapd/main", "Changing uid to %d.\n", uid));
if (setuid(uid) == -1) {
snmp_log_perror("setuid failed");
if (!netsnmp_ds_get_boolean(NETSNMP_DS_APPLICATION_ID,
NETSNMP_DS_AGENT_NO_ROOT_ACCESS)) {
goto sock_cleanup;
}
}
}
#endif
#endif
/*
* Let systemd know we're up.
*/
#ifndef NETSNMP_NO_SYSTEMD
netsnmp_sd_notify(1, "READY=1\n");
if (prepared_sockets)
/*
* Clear the environment variable, we already processed all the sockets
* by now.
*/
netsnmp_sd_listen_fds(1);
#endif
#ifdef WIN32SERVICE
trapd_status = SNMPTRAPD_RUNNING;
#endif
snmptrapd_main_loop();
if (snmp_get_do_logging()) {
struct tm *tm;
time_t timer;
time(&timer);
tm = localtime(&timer);
snmp_log(LOG_INFO,
"%.4d-%.2d-%.2d %.2d:%.2d:%.2d NET-SNMP version %s Stopped.\n",
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour,
tm->tm_min, tm->tm_sec, netsnmp_get_version());
}
snmp_log(LOG_INFO, "Stopping snmptrapd\n");
#ifdef NETSNMP_EMBEDDED_PERL
shutdown_perl();
#endif
snmptrapd_close_sessions(sess_list);
snmp_shutdown("snmptrapd");
#ifdef WIN32SERVICE
trapd_status = SNMPTRAPD_STOPPED;
#endif
snmp_disable_log();
exit_code = 0;
sock_cleanup:
SOCK_CLEANUP;
out:
return exit_code;
}
/*
* Read the configuration files. Implemented as a signal handler so that
* receipt of SIGHUP will cause configuration to be re-read when the
* trap daemon is running detatched from the console.
*
*/
void
trapd_update_config(void)
{
free_config();
#ifdef USING_MIBII_VACM_CONF_MODULE
vacm_standard_views(0,0,NULL,NULL);
#endif
read_configs();
}
int
main(int argc, char *argv[])
{
int arg;
char *current_name = NULL, *cp = NULL;
oid name[MAX_OID_LEN];
size_t name_length;
int description = 0;
int print = 0;
int find_all = 0;
int width = 1000000;
/*
* usage: snmptranslate name
*/
while ((arg = getopt(argc, argv, "Vhm:M:w:D:P:T:O:I:L:")) != EOF) {
switch (arg) {
case 'h':
usage();
exit(1);
case 'm':
setenv("MIBS", optarg, 1);
break;
case 'M':
setenv("MIBDIRS", optarg, 1);
break;
case 'D':
debug_register_tokens(optarg);
snmp_set_do_debugging(1);
break;
case 'V':
fprintf(stderr, "NET-SNMP version: %s\n",
netsnmp_get_version());
exit(0);
break;
case 'w':
width = atoi(optarg);
if (width <= 0) {
fprintf(stderr, "Invalid width specification: %s\n", optarg);
exit (1);
}
break;
#ifndef NETSNMP_DISABLE_MIB_LOADING
case 'P':
cp = snmp_mib_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr, "Unknown parser option to -P: %c.\n", *cp);
usage();
exit(1);
}
break;
#endif /* NETSNMP_DISABLE_MIB_LOADING */
case 'O':
cp = snmp_out_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr, "Unknown OID option to -O: %c.\n", *cp);
usage();
exit(1);
}
break;
case 'I':
cp = snmp_in_toggle_options(optarg);
if (cp != NULL) {
fprintf(stderr, "Unknown OID option to -I: %c.\n", *cp);
usage();
exit(1);
}
break;
case 'T':
for (cp = optarg; *cp; cp++) {
switch (*cp) {
#ifndef NETSNMP_DISABLE_MIB_LOADING
case 'l':
print = 3;
print_oid_report_enable_labeledoid();
break;
case 'o':
print = 3;
print_oid_report_enable_oid();
break;
case 's':
print = 3;
print_oid_report_enable_symbolic();
break;
case 't':
print = 3;
print_oid_report_enable_suffix();
break;
case 'z':
print = 3;
print_oid_report_enable_mibchildoid();
break;
#endif /* NETSNMP_DISABLE_MIB_LOADING */
case 'd':
description = 1;
netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_SAVE_MIB_DESCRS, 1);
break;
case 'B':
find_all = 1;
break;
case 'p':
print = 1;
break;
case 'a':
print = 2;
break;
default:
fprintf(stderr, "Invalid -T<lostpad> character: %c\n",
*cp);
usage();
exit(1);
break;
}
}
break;
case 'L':
if (snmp_log_options(optarg, argc, argv) < 0) {
return (-1);
}
break;
default:
fprintf(stderr, "invalid option: -%c\n", arg);
usage();