237 lines
6.4 KiB
C
237 lines
6.4 KiB
C
/*****************************************************************************
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*
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* $Id$
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* Purpose ...............: SNMP passthru support.
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*
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*****************************************************************************
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* Copyright (C) 1997-2008
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*
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* Michiel Broek FIDO: 2:280/2802
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* Beekmansbos 10
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* 1971 BV IJmuiden
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* the Netherlands
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*
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* This file is part of MBSE BBS.
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*
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* This BBS is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* MBSE BBS is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with MBSE BBS; see the file COPYING. If not, write to the Free
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* Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*****************************************************************************/
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#include "../config.h"
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#include "../lib/mbselib.h"
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#include "../lib/users.h"
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#include "../lib/mbsedb.h"
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#include "mbsnmp.h"
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// mbsnmp [-n|-g] .1.3.6.1.4.1.2021.256.group.item
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// mbsnmp <base oid> <request type> <requested oid>
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// <base oid> Base oid for this tree.
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// <request type> -n for SNMP getNext, or -g for SNMP get.
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// <request oid> Requested OID
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// outputs: "new oid\n" . "integer\n" . data . "\n"
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/*
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* group command reply
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* ----- ------- ----------------------------------------------------------------------------------------------
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* 0 MGMS:0; 100:12,kbrcvd,kbsent,sessin,sessout,sess_sec,sess_unseq,sess_bad,ftsc,yoohoo,emsi,binkp,freqs;
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* 1 MGTN:0; 100:3,in,out,bad;
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* 2 MGTI:0; 100:3,in,out,bad;
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* 3 MGTE:0; 100:4,in,out,bad,dupe;
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* 4 MGTR:0; 100:4,in,out,bad,dupe;
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* 5 MGTT:0; 100:4,in,out,bad,dupe;
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* 6 MGTF:0; 100:6,in,out,bad,dupe,magics,hatched;
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* 7 MGBB:0; 100:9,sessions,minutes,posted,uploads,kbupload,downloads,kbdownload,chats,chatminutes;
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* 8 MGOB:0; 100:1,size;
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*/
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void usage(void);
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void die(int);
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void usage(void)
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{
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fprintf(stderr, "\nMBSNMP: MBSE BBS %s SNMP subagent\n", VERSION);
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fprintf(stderr, " %s\n", COPYRIGHT);
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fprintf(stderr, "\nUsage: mbsnmp <base oid> <request type> <request oid>\n\n");
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exit(MBERR_COMMANDLINE);
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}
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void die(int onsig)
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{
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signal(onsig, SIG_IGN);
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if (onsig)
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Syslog('+', "Terminated on signal %d", onsig);
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ExitClient(onsig);
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}
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int main(int argc, char **argv)
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{
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int i, getnext = FALSE, group = 0, sub = 0, params, val;
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char *cmd, *t1, *t2, *saveptr1 = NULL, *saveptr2 = NULL, *token1, *token2;
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char *base_save, *req_save, *envptr = NULL, *req_oid, *base_oid, *resp, *type;
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struct passwd *pw;
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/*
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* First, check the syntax and parameters.
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*/
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if (argc != 4)
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usage();
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if (strcmp(argv[2],"-n") && strcmp(argv[2],"-g"))
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usage();
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base_oid = argv[1];
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req_oid = argv[3];
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getnext = strcmp(argv[2], "-g");
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if (strncmp(base_oid, req_oid, strlen(base_oid)))
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usage();
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/*
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* The next trick is to supply a fake environment variable
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* MBSE_ROOT because most likely we are started from snmpd.
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* This will setup the variable so InitConfig() will work.
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* The /etc/passwd must point to the correct homedirectory.
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*/
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pw = getpwnam((char *)"mbse");
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if (getenv("MBSE_ROOT") == NULL) {
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envptr = xstrcpy((char *)"MBSE_ROOT=");
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envptr = xstrcat(envptr, pw->pw_dir);
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putenv(envptr);
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}
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InitConfig();
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/*
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* Catch or ignore signals
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*/
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for (i = 0; i < NSIG; i++) {
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if ((i == SIGHUP) || (i == SIGINT) || (i == SIGBUS) || (i == SIGILL) || (i == SIGSEGV) || (i == SIGTERM) || (i == SIGIOT))
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signal(i, (void (*))die);
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else if ((i != SIGKILL) && (i != SIGSTOP))
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signal(i, SIG_IGN);
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}
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cmd = xstrcpy((char *)"Cmd:");
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for (i = 1; i < argc; i++) {
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cmd = xstrcat(cmd, (char *)" ");
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cmd = xstrcat(cmd, argv[i]);
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}
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pw = getpwuid(getuid());
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InitClient(pw->pw_name, (char *)"mbsnmp", CFG.location, CFG.logfile,
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CFG.util_loglevel, CFG.error_log, CFG.mgrlog, CFG.debuglog);
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Syslog('f', cmd);
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free(cmd);
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// Syslog('+', "base oid %s", base_oid);
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// Syslog('+', "req_oid %s", req_oid);
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// Syslog('+', "getnext %s", getnext ? "True":"False");
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base_save = xstrcpy(base_oid);
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req_save = xstrcpy(req_oid);
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for (i = 1, t1 = base_oid, t2 = req_oid; ; i++, t1 = NULL, t2 = NULL) {
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token1 = strtok_r(t1, ".", &saveptr1);
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token2 = strtok_r(t2, ".", &saveptr2);
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if ((token1 == NULL) || (token2 == NULL))
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break;
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// Syslog('-', "%d %s %s", i, token1, token2);
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}
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/*
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* Complete the requested OID if needed.
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*/
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if (token2) {
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group = atoi(token2);
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// Syslog('-', "%d %s %s", i, token1, token2);
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t2 = NULL;
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token2 = strtok_r(t2, ".", &saveptr2);
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if (token2) {
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// Syslog('-', "%d %s %s", i, token1, token2);
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sub = atoi(token2);
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}
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}
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// Syslog('+', "group=%d sub=%d", group, sub);
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if ((group < 0) || (group > 8)) {
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die(MBERR_OK);
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}
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switch (group) {
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case 0: resp = SockR("MGMS:0;"); break;
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case 1: resp = SockR("MGTN:0;"); break;
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case 2: resp = SockR("MGTI:0;"); break;
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case 3: resp = SockR("MGTE:0;"); break;
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case 4: resp = SockR("MGTR:0;"); break;
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case 5: resp = SockR("MGTT:0;"); break;
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case 6: resp = SockR("MGTF:0;"); break;
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case 7: resp = SockR("MGBB:0;"); break;
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case 8: resp = SockR("MGOB:0;"); break;
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default: resp = (char *)"200:0;";
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}
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// Syslog('+', "resp %s", resp);
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t1 = strtok(resp, ":");
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t1 = strtok(NULL, ",");
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params = atoi(t1);
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// Syslog('+', "params=%d", params);
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for (i = 0; i < params; i++) {
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t1 = strtok(NULL, ",;");
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// Syslog('+', "t1 %d %s", i, t1);
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val = atoi(t1);
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if (i == sub)
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break;
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}
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/*
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* The value type defaults to counter.
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*/
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type = (char *)"counter";
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if ((group == 8) && (sub == 0))
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type = (char *)"gauge";
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if ((group < 9) && (sub < params)) {
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if (getnext) {
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sub++;
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if ((sub >= params) && (group < 8)) {
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sub = 0;
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group++;
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}
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}
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printf("%s.%d.%d\n", base_save, group, sub);
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printf("%s\n", type);
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printf("%d\n", val);
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Syslog('f', "Rsp: %s %s => %s.%d.%d %s %d", req_save, getnext ? "N":"G", base_save, group, sub, type, val);
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}
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die(MBERR_OK);
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return 0;
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}
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