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mariadb-columnstore-engine/net-snmp/net-snmp-5.2.1.2/snmplib/snmp_parse_args.c
david hill f6afc42dd0 the begginning
2016-01-06 14:08:59 -06:00

763 lines
24 KiB
C
Raw Blame History

/*
* snmp_parse_args.c
*/
/* Portions of this file are subject to the following copyright(s). See
* the Net-SNMP's COPYING file for more details and other copyrights
* that may apply:
*/
/*
* Portions of this file are copyrighted by:
* Copyright @ 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms specified in the COPYING file
* distributed with the Net-SNMP package.
*/
#include <net-snmp/net-snmp-config.h>
#if HAVE_STDLIB_H
#include <stdlib.h>
#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#if HAVE_STRING_H
#include <string.h>
#else
#include <strings.h>
#endif
#include <sys/types.h>
#include <stdio.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <ctype.h>
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#if TIME_WITH_SYS_TIME
# ifdef WIN32
# include <sys/timeb.h>
# else
# include <sys/time.h>
# endif
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#if HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#if HAVE_WINSOCK_H
#include <winsock.h>
#endif
#if HAVE_NETDB_H
#include <netdb.h>
#endif
#if HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#include <net-snmp/types.h>
#include <net-snmp/output_api.h>
#include <net-snmp/config_api.h>
#include <net-snmp/library/snmp_parse_args.h> /* for "internal" definitions */
#include <net-snmp/utilities.h>
#include <net-snmp/library/snmp_api.h>
#include <net-snmp/library/snmp_client.h>
#include <net-snmp/library/mib.h>
#include <net-snmp/library/scapi.h>
#include <net-snmp/library/keytools.h>
#include <net-snmp/version.h>
#include <net-snmp/library/parse.h>
#include <net-snmp/library/snmpv3.h>
#include <net-snmp/library/transform_oids.h>
int random_access = 0;
void
snmp_parse_args_usage(FILE * outf)
{
fprintf(outf, "[OPTIONS] AGENT");
}
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: net-snmp-coders@lists.sourceforge.net\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");
#if !defined(DISABLE_SNMPV1) || !defined(DISABLE_SNMPV2C)
fprintf(outf, "SNMP Version 1 or 2c specific\n");
fprintf(outf, " -c COMMUNITY\t\tset the community string\n");
#endif /* support for community based SNMP */
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");
#ifdef HAVE_AES
fprintf(outf, " -x PROTOCOL\t\tset privacy protocol (DES|AES)\n");
#else
fprintf(outf, " -x PROTOCOL\t\tset privacy protocol (DES)\n");
#endif
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");
#ifndef DISABLE_MIB_LOADING
fprintf(outf,
" -P MIBOPTS\t\tToggle various defaults controlling MIB parsing:\n");
snmp_mib_toggle_options_usage("\t\t\t ", outf);
#endif
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);
fprintf(outf,
" -L LOGOPTS\t\tToggle various defaults controlling logging:\n");
snmp_log_options_usage("\t\t\t ", outf);
fflush(outf);
}
#define BUF_SIZE 512
void
handle_long_opt(const char *myoptarg)
{
char *cp, *cp2;
/*
* else it's a long option, so process it like name=value
*/
cp = malloc(strlen(myoptarg) + 3);
strcpy(cp, myoptarg);
cp2 = strchr(cp, '=');
if (!cp2 && !strchr(cp, ' ')) {
/*
* well, they didn't specify an argument as far as we
* can tell. Give them a '1' as the argument (which
* works for boolean tokens and a few others) and let
* them suffer from there if it's not what they
* wanted
*/
strcat(cp, " 1");
} else {
/*
* replace the '=' with a ' '
*/
if (cp2)
*cp2 = ' ';
}
netsnmp_config(cp);
free(cp);
}
extern int snmpv3_options(char *optarg, netsnmp_session * session,
char **Apsz, char **Xpsz, int argc,
char *const *argv);
/*
* This method does the real work for snmp_parse_args. It takes an
* extra argument, proxy, and uses this to decide how to handle the lack of
* of a community string.
*/
int
snmp_parse_args(int argc,
char **argv,
netsnmp_session * session, const char *localOpts,
void (*proc) (int, char *const *, int))
{
static char *sensitive[4] = { NULL, NULL, NULL, NULL };
int arg, sp = 0, zero_sensitive = 1, testcase = 0;
char *cp;
char *Apsz = NULL;
char *Xpsz = NULL;
char *Cpsz = NULL;
char Opts[BUF_SIZE];
int logopt = 0;
/*
* 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)
strcat(Opts, localOpts);
if (strcmp(argv[0], "snmpd-trapsess") == 0 ||
strcmp(argv[0], "snmpd-proxy") == 0) {
/* Don't worry about zeroing sensitive parameters as they are not
on the command line anyway (called from internal config-line
handler). */
zero_sensitive = 0;
}
/*
* 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;
#ifndef DISABLE_MIB_LOADING
case 'm':
setenv("MIBS", optarg, 1);
break;
case 'M':
netsnmp_set_mib_directory(optarg);
break;
#endif /* DISABLE_MIB_LOADING */
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_options(optarg, argc, argv);
if (cp != NULL) {
fprintf(stderr, "Unknown input option passed to -I: %c.\n",
*cp);
return (-1);
}
break;
#ifndef 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 (-1);
}
break;
#endif /* 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 DISABLE_SNMPV1
if (!strcmp(optarg, "1")) {
session->version = SNMP_VERSION_1;
}
#endif
#ifndef 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 (-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':
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 -1;
}
} else {
Cpsz = optarg;
}
break;
case '3':
/* TODO: This needs to zero things too. */
if (snmpv3_options(optarg, session, &Apsz, &Xpsz, argc, argv) < 0){
return (-1);
}
break;
case 'L':
if (snmp_log_options(optarg, argc, argv) < 0) {
return (-1);
}
logopt = 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':
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 -1;
}
} 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 (-1);
}
break;
case 'a':
#ifndef 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 (-1);
}
break;
case 'x':
testcase = 0;
#ifndef 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 (-1);
}
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 -1;
}
} 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 -1;
}
} else {
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));
if (!logopt)
snmp_enable_stderrlog();
/*
* 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 = netsnmp_ds_get_int(NETSNMP_DS_LIBRARY_ID,
NETSNMP_DS_LIB_SNMPVERSION);
/*
* compile time default version
*/
if (!session->version) {
switch (DEFAULT_SNMP_VERSION) {
#ifndef DISABLE_SNMPV1
case 1:
session->version = SNMP_VERSION_1;
break;
#endif
#ifndef 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(-2);
}
} else {
#ifndef DISABLE_SNMPV1
if (session->version == NETSNMP_DS_SNMP_VERSION_1) /* bogus value. version 1 actually = 0 */
session->version = SNMP_VERSION_1;
#endif
}
}
/*
* 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 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 (-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
*/
#ifndef 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 (-2);
}
}
/*
* get the hostname
*/
if (optind == argc) {
fprintf(stderr, "No hostname specified.\n");
return (-1);
}
session->peername = argv[optind++]; /* hostname */
#if !defined(DISABLE_SNMPV1) || !defined(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 (session->version == SNMP_VERSION_1 ||
session->version == SNMP_VERSION_2c) {
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 (-1);
}
}
} else {
session->community = (unsigned char *)Cpsz;
session->community_len = strlen(Cpsz);
}
}
#endif /* support for community based SNMP */
return optind;
}
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