| 1 | /* |
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| 2 | * snmp.c |
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| 3 | * |
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| 4 | * Copyright (C) 2006 Sebastian Gottschall <gottschall@dd-wrt.com> |
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| 5 | * |
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| 6 | * This program is free software; you can redistribute it and/or |
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| 7 | * modify it under the terms of the GNU General Public License |
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| 8 | * as published by the Free Software Foundation; either version 2 |
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| 9 | * of the License, or (at your option) any later version. |
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| 10 | * |
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| 11 | * This program is distributed in the hope that it will be useful, |
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | * GNU General Public License for more details. |
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| 15 | * |
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| 16 | * You should have received a copy of the GNU General Public License |
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| 17 | * along with this program; if not, write to the Free Software |
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| 18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 19 | * |
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| 20 | * $Id: |
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| 21 | */ |
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| 22 | |
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| 23 | #ifdef HAVE_SNMP |
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| 24 | |
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| 25 | #include <unistd.h> |
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| 26 | #include <string.h> |
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| 27 | #include <signal.h> |
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| 28 | #include <stdio.h> |
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| 29 | #include <sys/types.h> |
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| 30 | #include <bcmnvram.h> |
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| 31 | #include <shutils.h> |
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| 32 | #include <utils.h> |
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| 33 | #include <syslog.h> |
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| 34 | #include "snmp.h" |
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| 35 | |
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| 36 | #define SNMP_CONF_FILE "/var/snmp/snmpd.conf" |
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| 37 | |
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| 38 | void start_snmp(void) |
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| 39 | { |
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| 40 | int ret = 0; |
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| 41 | pid_t pid; |
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| 42 | |
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| 43 | char *snmpd_argv[] = { "snmpd", "-c", SNMP_CONF_FILE, NULL }; |
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| 44 | FILE *fp = NULL; |
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| 45 | |
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| 46 | stop_snmp(); |
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| 47 | |
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| 48 | if (!nvram_invmatch("snmpd_enable", "0")) |
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| 49 | return; |
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| 50 | |
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| 51 | fp = fopen(SNMP_CONF_FILE, "w"); |
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| 52 | if (NULL == fp) |
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| 53 | return; |
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| 54 | |
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| 55 | if (strlen(nvram_safe_get("snmpd_syslocation")) > 0) |
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| 56 | fprintf(fp, "syslocation %s\n", |
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| 57 | nvram_safe_get("snmpd_syslocation")); |
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| 58 | if (strlen(nvram_safe_get("snmpd_syscontact")) > 0) |
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| 59 | fprintf(fp, "syscontact %s\n", |
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| 60 | nvram_safe_get("snmpd_syscontact")); |
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| 61 | if (strlen(nvram_safe_get("snmpd_sysname")) > 0) |
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| 62 | fprintf(fp, "sysname %s\n", nvram_safe_get("snmpd_sysname")); |
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| 63 | if (strlen(nvram_safe_get("snmpd_rocommunity")) > 0) |
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| 64 | fprintf(fp, "rocommunity %s\n", |
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| 65 | nvram_safe_get("snmpd_rocommunity")); |
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| 66 | if (strlen(nvram_safe_get("snmpd_rwcommunity")) > 0) |
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| 67 | fprintf(fp, "rwcommunity %s\n", |
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| 68 | nvram_safe_get("snmpd_rwcommunity")); |
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| 69 | fprintf(fp, "sysservices 9\n"); |
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| 70 | fprintf(fp, "pass_persist .1.3.6.1.4.1.2021.255 /etc/wl_snmpd.sh\n"); |
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| 71 | |
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| 72 | fclose(fp); |
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| 73 | ret = _evalpid(snmpd_argv, NULL, 0, &pid); |
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| 74 | |
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| 75 | cprintf("done\n"); |
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| 76 | dd_syslog(LOG_INFO, "snmpd : SNMP daemon successfully started\n"); |
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| 77 | |
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| 78 | return; |
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| 79 | } |
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| 80 | |
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| 81 | void stop_snmp(void) |
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| 82 | { |
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| 83 | int ret = 0; |
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| 84 | |
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| 85 | cprintf("done\n"); |
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| 86 | if (pidof("snmpd") > 0) { |
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| 87 | dd_syslog(LOG_INFO, |
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| 88 | "snmpd : SNMP daemon successfully stopped\n"); |
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| 89 | ret = killall("snmpd", SIGKILL); |
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| 90 | } |
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| 91 | return; |
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| 92 | } |
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| 93 | #endif |
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