2000-06-25 01:10:57 +08:00
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/*
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Created from the snmputil sample in the Microsoft SDK for NT
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*/
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#include "php.h"
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#if COMPILE_DL
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#include "../phpdl.h"
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#include "functions/dl.h"
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#endif
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#include "php_snmp.h"
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#include <sys/types.h>
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#include <stdio.h>
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#include <string.h>
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#include <malloc.h>
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#if HAVE_SNMP
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#include <snmp.h>
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#include <mgmtapi.h>
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2001-06-05 21:12:10 +08:00
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/* {{{ snmp_functions[]
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*/
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2007-09-28 02:00:48 +08:00
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const zend_function_entry snmp_functions[] = {
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2000-06-25 01:10:57 +08:00
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{"snmpget", php3_snmpget, NULL},
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{"snmpwalk", php3_snmpwalk, NULL},
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{NULL,NULL,NULL}
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};
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2001-06-05 21:12:10 +08:00
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/* }}} */
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2000-06-25 01:10:57 +08:00
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2001-06-05 21:12:10 +08:00
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/* {{{ snmp_module_entry
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*/
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2000-06-25 01:10:57 +08:00
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zend_module_entry snmp_module_entry = {
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2001-10-12 07:33:59 +08:00
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STANDARD_MODULE_HEADER,
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"SNMP",
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snmp_functions,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NO_VERSION_YET,
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STANDARD_MODULE_PROPERTIES
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2000-06-25 01:10:57 +08:00
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};
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2001-06-05 21:12:10 +08:00
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/* }}} */
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2000-06-25 01:10:57 +08:00
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#if COMPILE_DL
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DLEXPORT zend_module_entry *get_module() { return &snmp_module_entry; }
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#endif
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#define GET 1
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#define WALK 2
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#define GETNEXT 3
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#define TIMEOUT 6000 /* milliseconds */
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#define RETRIES 3
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2001-06-05 21:12:10 +08:00
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/* {{{ _php_snmp
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*/
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void _php_snmp(INTERNAL_FUNCTION_PARAMETERS, int st) {
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2005-12-06 10:28:41 +08:00
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zval *a1, *a2, *a3;
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2000-06-25 01:10:57 +08:00
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INT operation;
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LPSTR agent;
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LPSTR community;
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RFC1157VarBindList variableBindings;
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LPSNMP_MGR_SESSION session;
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INT timeout = TIMEOUT;
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INT retries = RETRIES;
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BYTE requestType;
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AsnInteger errorStatus;
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AsnInteger errorIndex;
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AsnObjectIdentifier oid;
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char *chkPtr = NULL;
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2003-01-15 10:54:54 +08:00
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if (zend_get_parameters_ex(3, &a1, &a2, &a3) == FAILURE) {
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2000-06-25 01:10:57 +08:00
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WRONG_PARAM_COUNT;
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}
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2003-01-15 10:54:54 +08:00
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convert_to_string_ex(a1);
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convert_to_string_ex(a2);
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convert_to_string_ex(a3);
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2000-06-25 01:10:57 +08:00
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2003-01-15 10:54:54 +08:00
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agent=Z_STRVAL_PP(a1);
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community=Z_STRVAL_PP(a2);
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2000-06-25 01:10:57 +08:00
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operation=st;
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2003-01-15 10:54:54 +08:00
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SnmpMgrStrToOid(Z_STRVAL_PP(a3), &oid);
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2000-06-25 01:10:57 +08:00
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/*
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I've limited this to only one oid, but we can create a
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list of oid's here, and expand the function to take multiple
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oid's
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*/
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variableBindings.list->name = oid;
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variableBindings.list->value.asnType = ASN_NULL;
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variableBindings.len = 1;
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/* Establish a SNMP session to communicate with the remote agent. The
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community, communications timeout, and communications retry count
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for the session are also required.
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*/
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if ((session = SnmpMgrOpen(agent, community, timeout, retries)) == NULL){
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2005-08-18 21:34:41 +08:00
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "error on SnmpMgrOpen %d", GetLastError());
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2000-06-25 01:10:57 +08:00
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}
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/* Determine and perform the requested operation.*/
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if (operation == GET || operation == GETNEXT){
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/* Get and GetNext are relatively simple operations to perform.
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Simply initiate the request and process the result and/or
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possible error conditions. */
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if (operation == GET){
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requestType = ASN_RFC1157_GETREQUEST;
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} else {
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requestType = ASN_RFC1157_GETNEXTREQUEST;
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}
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/* Request that the API carry out the desired operation.*/
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if (!SnmpMgrRequest(session, requestType, &variableBindings,
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&errorStatus, &errorIndex)){
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/* The API is indicating an error. */
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2005-08-18 21:34:41 +08:00
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "error on SnmpMgrRequest %d", GetLastError());
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2000-06-25 01:10:57 +08:00
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} else {
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/* The API succeeded, errors may be indicated from the remote
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agent. */
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if (errorStatus > 0){
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2005-08-18 21:34:41 +08:00
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error: errorStatus=%d, errorIndex=%d",
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2000-06-25 01:10:57 +08:00
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errorStatus, errorIndex);
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} else {
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/* Display the resulting variable bindings.*/
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UINT i;
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char *str = NULL;
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for(i=0; i < variableBindings.len; i++)
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{
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SnmpMgrOidToStr(&variableBindings.list[i].name, &str);
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php_printf("Variable = %s\n", str);
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if (str) SNMP_free(str);
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php_printf("Value = ");
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SnmpUtilPrintAsnAny(&variableBindings.list[i].value);
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php_printf("\n");
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} /* end for() */
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}
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}
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/* Free the variable bindings that have been allocated.*/
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SnmpUtilVarBindListFree(&variableBindings);
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}
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else if (operation == WALK)
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{
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/* Walk is a common term used to indicate that all MIB variables
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under a given OID are to be traversed and displayed. This is
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a more complex operation requiring tests and looping in addition
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to the steps for get/getnext above. */
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AsnObjectIdentifier root;
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AsnObjectIdentifier tempOid;
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SnmpUtilOidCpy(&root, &variableBindings.list[0].name);
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requestType = ASN_RFC1157_GETNEXTREQUEST;
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while(1)
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{
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if (!SnmpMgrRequest(session, requestType, &variableBindings,
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&errorStatus, &errorIndex)){
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/* The API is indicating an error.*/
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2005-08-18 21:34:41 +08:00
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "error on SnmpMgrRequest %d", GetLastError());
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2000-06-25 01:10:57 +08:00
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break;
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}
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else
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{
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/* The API succeeded, errors may be indicated from the remote
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agent.
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Test for end of subtree or end of MIB. */
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if (errorStatus == SNMP_ERRORSTATUS_NOSUCHNAME ||
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SnmpUtilOidNCmp(&variableBindings.list[0].name,
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&root, root.idLength))
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{
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PUTS("End of MIB subtree.\n\n");
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break;
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}
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/* Test for general error conditions or sucesss. */
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if (errorStatus > 0){
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2005-08-18 21:34:41 +08:00
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php_error_docref(NULL TSRMLS_CC, E_ERROR,"Error: errorStatus=%d, errorIndex=%d", errorStatus, errorIndex);
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2000-06-25 01:10:57 +08:00
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break;
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}
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else
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{
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/* Display resulting variable binding for this iteration. */
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char *str = NULL;
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SnmpMgrOidToStr(&variableBindings.list[0].name, &str);
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php_printf("Variable = %s\n", str);
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if (str) SNMP_free(str);
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php_printf("Value = ");
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SnmpUtilPrintAsnAny(&variableBindings.list[0].value);
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php_printf("\n");
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}
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} /* end if () */
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/* Prepare for the next iteration. Make sure returned oid is
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preserved and the returned value is freed.
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*/
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SnmpUtilOidCpy(&tempOid, &variableBindings.list[0].name);
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SnmpUtilVarBindFree(&variableBindings.list[0]);
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SnmpUtilOidCpy(&variableBindings.list[0].name, &tempOid);
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variableBindings.list[0].value.asnType = ASN_NULL;
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SnmpUtilOidFree(&tempOid);
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} /* end while() */
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/* Free the variable bindings that have been allocated.*/
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SnmpUtilVarBindListFree(&variableBindings);
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SnmpUtilOidFree(&root);
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} /* end if (operation) */
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/* Close SNMP session with the remote agent.*/
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if (!SnmpMgrClose(session)){
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2005-08-18 21:34:41 +08:00
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "error on SnmpMgrClose %d", GetLastError());
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2000-06-25 01:10:57 +08:00
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}
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}
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2001-06-05 21:12:10 +08:00
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/* }}} */
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2000-06-25 01:10:57 +08:00
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2001-06-05 21:12:10 +08:00
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/* {{{ php3_snmpget
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*/
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2000-06-25 01:10:57 +08:00
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DLEXPORT void php3_snmpget(INTERNAL_FUNCTION_PARAMETERS) {
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2001-06-05 21:12:10 +08:00
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_php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU,1);
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2000-06-25 01:10:57 +08:00
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}
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2001-06-05 21:12:10 +08:00
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/* }}} */
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2000-06-25 01:10:57 +08:00
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2001-06-05 21:12:10 +08:00
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/* {{{ php3_snmpwalk
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*/
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2000-06-25 01:10:57 +08:00
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DLEXPORT void php3_snmpwalk(INTERNAL_FUNCTION_PARAMETERS) {
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2001-06-05 21:12:10 +08:00
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_php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU,2);
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2000-06-25 01:10:57 +08:00
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}
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2001-06-05 21:12:10 +08:00
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/* }}} */
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2000-06-25 01:10:57 +08:00
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#endif
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2001-06-05 21:12:10 +08:00
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2000-06-25 01:10:57 +08:00
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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2001-09-09 21:29:31 +08:00
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* vim600: sw=4 ts=4 fdm=marker
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* vim<600: sw=4 ts=4
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2000-06-25 01:10:57 +08:00
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*/
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