/*
* This routine loads MIB files, and computes the key-OID values.
* We defer this until the mib-definition is actually being referred to
* in snmphosts.cfg, because lots of MIB's are not being used
* (and probably do not exist on the host where we're running) and
* to avoid spending a lot of time to load MIB's that are not used.
*/
void setupmib(mibdef_t *mib, int verbose)
{
mibidx_t *iwalk;
size_t sz, len;
if (mib->loadstatus != MIB_STATUS_NOTLOADED) return;
if (mib->mibfn && (read_mib(mib->mibfn) == NULL)) {
mib->loadstatus = MIB_STATUS_LOADFAILED;
if (verbose) {
errprintf("Failed to read MIB file %s\n", mib->mibfn);
snmp_perror("read_objid");
}
}
for (iwalk = mib->idxlist; (iwalk); iwalk = iwalk->next) {
iwalk->rootoid = calloc(MAX_OID_LEN, sizeof(oid));
iwalk->rootoidlen = MAX_OID_LEN;
if (read_objid(iwalk->keyoid, iwalk->rootoid, &iwalk->rootoidlen)) {
/* Re-use the iwalk->keyoid buffer */
sz = strlen(iwalk->keyoid) + 1; len = 0;
sprint_realloc_objid((unsigned char **)&iwalk->keyoid, &sz, &len, 1, iwalk->rootoid, iwalk->rootoidlen);
}
else {
mib->loadstatus = MIB_STATUS_LOADFAILED;
if (verbose) {
errprintf("Cannot determine OID for %s\n", iwalk->keyoid);
snmp_perror("read_objid");
}
}
}
mib->loadstatus = MIB_STATUS_LOADED;
}
QtNetSNMP::QMIBTree *QtNetSNMP::QSNMPManager::getMIBFile(const QString& fileName) throw(QSNMPException)
{
if(!QFile(fileName).exists())
throw QSNMPException("QSNMPManager :: Get MIB File :: File not found");
return _core -> getMIBTree(read_mib(fileName.toStdString().c_str()));
}
void
init_mib(char *file)
{
if (Mib != NULL)
return;
if (file != NULL)
Mib = read_mib(file);
}
int load_mib(char *path, int MibType)
{
if (Mib != NULL) return(0);
if (MibType == OLD_CMU_SNMP_MIB)
Mib = read_mib(path);
else if (MibType == SNMPV2_MIB)
Mib = read_mib_v2(path);
if (Mib == NULL)
return(0);
set_functions(Mib);
return(1);
}
int main(int argc, char ** argv)
{
struct snmp_session session;
struct snmp_session *sess_handle;
struct snmp_pdu *pdu;
struct snmp_pdu *response;
struct variable_list *vars;
oid id_oid[MAX_OID_LEN];
oid serial_oid[MAX_OID_LEN];
size_t id_len = MAX_OID_LEN;
size_t serial_len = MAX_OID_LEN;
int status;
struct tree * mib_tree;
/*********************/
if(argv[1] == NULL){
printf("Please supply a hostname\n");
exit(1);
}
init_snmp("Main check");
snmp_sess_init( &session );
session.version = SNMP_VERSION_1;
session.community = "public";
session.community_len = strlen(session.community);
session.peername = argv[1];
sess_handle = snmp_open(&session);
add_mibdir(".");
mib_tree = read_mib("mibs/SNMPv2-MIB.txt");
pdu = snmp_pdu_create(SNMP_MSG_GET);
read_objid("SNMPv2-MIB::sysDescr.0", id_oid, &id_len);
snmp_add_null_var(pdu, id_oid, id_len);
read_objid("SNMPv2-MIB::sysObjectID.0", serial_oid, &serial_len);
snmp_add_null_var(pdu, serial_oid, serial_len);
status = snmp_synch_response(sess_handle, pdu, &response);
for(vars = response->variables; vars; vars = vars->next_variable)
print_value(vars->name, vars->name_length, vars);
snmp_free_pdu(response);
snmp_close(sess_handle);
return (0);
}
int init_mib(void)
{
char *file;//, *getenv();
if (Mib != NULL) return (0);
/* First, try the new parser if the variable exists.
*/
file = getenv("MIBFILE_v2");
if (file != NULL)
Mib = read_mib_v2(file);
/* Then our overrides
*/
if (Mib == NULL)
if ((file = getenv("MIBFILE")) != NULL)
Mib = read_mib(file);
/* Then the default mibfiles
*/
if (Mib == NULL)
Mib = read_mib_v2("mib-v2.txt");
if (Mib == NULL)
Mib = read_mib_v2("/etc/mib-v2.txt");
#ifndef WIN32
#define MIBDIR "."
if (Mib == NULL) {
char path[MAXPATHLEN];
sprintf(path, WIDE("%s/mib-v2.txt"), MIBDIR);
Mib = read_mib_v2(path);
}
#endif /* WIN32 */
/* And finally the old faithful files.
*/
if (Mib == NULL)
Mib = read_mib("mib.txt");
if (Mib == NULL)
Mib = read_mib("/etc/mib.txt");
#ifndef WIN32
if (Mib == NULL) {
char path[MAXPATHLEN];
sprintf(path, WIDE("%s/mib.txt"), MIBDIR);
Mib = read_mib(path);
}
#endif /* WIN32 */
#ifdef WIN32
if (Mib == NULL) {
/* Fetch the name from the registry */
long ret;
HKEY hKey;
DWORD Type;
#define MAX_VALUE_NAME 128
#define KEY "SOFTWARE\\Carnegie Mellon\\Network Group\\SNMP Library"
TCHAR ValueName[MAX_VALUE_NAME];
DWORD dwcValueName = MAX_VALUE_NAME;
ret = RegOpenKeyEx(HKEY_LOCAL_MACHINE,
_TEXT(KEY),
0,
KEY_READ,
&hKey);
if (ret == ERROR_SUCCESS) {
/* Found this registry entry. */
ret = RegQueryValueEx(hKey,
_TEXT("MIB Location"),
NULL,
&Type,
(LPBYTE)&ValueName,
&dwcValueName);
if (ret == ERROR_SUCCESS) {
#ifdef UNICODE
_tprintf(_TEXT("Found '%s'\n"), ValueName);
{
char lpszBuf[MAX_VALUE_NAME];
if (WideCharToMultiByte(CP_ACP, 0, ValueName, WC_SEPCHARS, // -1
lpszBuf, dwcValueName, NULL, NULL)) {
Mib = read_mib_v2(lpszBuf);
}
}
#else /* UNICODE */
Mib = read_mib_v2(ValueName);
#endif /* UNICODE */
} else {
/* Unable to read key */
LPVOID lpMsgBuf;
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS, NULL, ret,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (TCHAR *)&lpMsgBuf, 0, NULL);
#ifdef STDERR_OUTPUT
fprintf(stderr, WIDE("Reg Read Error: %s\n"), (LPTSTR)lpMsgBuf);
#endif
}
/* And close the registry */
RegCloseKey(hKey);
} else {
/* Unable to open key */
LPVOID lpMsgBuf;
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS, NULL, ret,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (TCHAR *)&lpMsgBuf, 0, NULL);
#ifdef STDERR_OUTPUT
fprintf(stderr, WIDE("Reg Open Error: %s\n"), (LPTSTR)lpMsgBuf);
#endif
}
}
#endif /* WIN32 */
if (Mib == NULL) {
#ifdef STDERR_OUTPUT
fprintf(stderr, WIDE("Couldn't find mib file\n"));
#endif
return(0);
}
set_functions(Mib);
return(1);
}
