| /* |
| * 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> |
| #include <errno.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 |
| # include <sys/time.h> |
| # 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_NETDB_H |
| #include <netdb.h> |
| #endif |
| #if HAVE_ARPA_INET_H |
| #include <arpa/inet.h> |
| #endif |
| |
| #include <net-snmp/net-snmp-includes.h> |
| #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(NETSNMP_DISABLE_SNMPV1) || !defined(NETSNMP_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"); |
| #ifndef NETSNMP_DISABLE_DEBUGGING |
| fprintf(outf, |
| " -D[TOKEN[,...]]\tturn on debugging output for the specified TOKENs\n\t\t\t (ALL gives extremely verbose debugging output)\n"); |
| #endif |
| fprintf(outf, "General options\n"); |
| fprintf(outf, |
| " -m MIB[" ENV_SEPARATOR "...]\t\tload given list of MIBs (ALL loads everything)\n"); |
| fprintf(outf, |
| " -M DIR[" ENV_SEPARATOR "...]\t\tlook in given list of directories for MIBs\n"); |
| #ifndef NETSNMP_DISABLE_MIB_LOADING |
| fprintf(outf, |
| " (default: %s)\n", netsnmp_get_mib_directory()); |
| 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 = (char *)malloc(strlen(myoptarg) + 3); |
| if (!cp) |
| return; |
| 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); |
| |
| 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 ); |
| |
| /* |
| * 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: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_toggle_options(optarg); |
| 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': |
| #ifdef NETSNMP_NO_DEBUGGING |
| fprintf(stderr, "Debug not configured in\n"); |
| return (NETSNMP_PARSE_ARGS_ERROR_USAGE); |
| #else |
| debug_register_tokens(optarg); |
| snmp_set_do_debugging(1); |
| #endif |
| 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)); |
| |
| /* |
| * 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 (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 |
| snmp_parse_args(int argc, |
| char **argv, |
| netsnmp_session * session, const char *localOpts, |
| void (*proc) (int, char *const *, int)) |
| { |
| return netsnmp_parse_args(argc, argv, session, localOpts, proc, 0); |
| } |
