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|
- /*
- +----------------------------------------------------------------------+
- | Copyright (c) The PHP Group |
- +----------------------------------------------------------------------+
- | This source file is subject to version 3.01 of the PHP license, |
- | that is bundled with this package in the file LICENSE, and is |
- | available through the world-wide-web at the following url: |
- | https://www.php.net/license/3_01.txt |
- | If you did not receive a copy of the PHP license and are unable to |
- | obtain it through the world-wide-web, please send a note to |
- | license@php.net so we can mail you a copy immediately. |
- +----------------------------------------------------------------------+
- | Authors: Rasmus Lerdorf <rasmus@php.net> |
- | Mike Jackson <mhjack@tscnet.com> |
- | Steven Lawrance <slawrance@technologist.com> |
- | Harrie Hazewinkel <harrie@lisanza.net> |
- | Johann Hanne <jonny@nurfuerspam.de> |
- | Boris Lytockin <lytboris@gmail.com> |
- +----------------------------------------------------------------------+
- */
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
- #include "php.h"
- #include "main/php_network.h"
- #include "ext/standard/info.h"
- #include "php_snmp.h"
- #include "zend_exceptions.h"
- #include "zend_smart_string.h"
- #include "ext/spl/spl_exceptions.h"
- #include "snmp_arginfo.h"
- #if HAVE_SNMP
- #include <sys/types.h>
- #include <errno.h>
- #ifdef PHP_WIN32
- #include <winsock2.h>
- #include <process.h>
- #include "win32/time.h"
- #else
- #include <sys/socket.h>
- #include <netinet/in.h>
- #include <arpa/inet.h>
- #include <netdb.h>
- #endif
- #ifdef HAVE_UNISTD_H
- #include <unistd.h>
- #endif
- #include <locale.h>
- #ifndef __P
- #ifdef __GNUC__
- #define __P(args) args
- #else
- #define __P(args) ()
- #endif
- #endif
- #include <net-snmp/net-snmp-config.h>
- #include <net-snmp/net-snmp-includes.h>
- /* For net-snmp prior to 5.4 */
- #ifndef HAVE_SHUTDOWN_SNMP_LOGGING
- extern netsnmp_log_handler *logh_head;
- #define shutdown_snmp_logging() \
- { \
- snmp_disable_log(); \
- while(NULL != logh_head) \
- netsnmp_remove_loghandler( logh_head ); \
- }
- #endif
- #define SNMP_VALUE_LIBRARY (0 << 0)
- #define SNMP_VALUE_PLAIN (1 << 0)
- #define SNMP_VALUE_OBJECT (1 << 1)
- typedef struct snmp_session php_snmp_session;
- #define PHP_SNMP_ADD_PROPERTIES(a, b) \
- { \
- int i = 0; \
- while (b[i].name != NULL) { \
- php_snmp_add_property((a), (b)[i].name, (b)[i].name_length, \
- (php_snmp_read_t)(b)[i].read_func, (php_snmp_write_t)(b)[i].write_func); \
- i++; \
- } \
- }
- #define PHP_SNMP_ERRNO_NOERROR 0
- #define PHP_SNMP_ERRNO_GENERIC (1 << 1)
- #define PHP_SNMP_ERRNO_TIMEOUT (1 << 2)
- #define PHP_SNMP_ERRNO_ERROR_IN_REPLY (1 << 3)
- #define PHP_SNMP_ERRNO_OID_NOT_INCREASING (1 << 4)
- #define PHP_SNMP_ERRNO_OID_PARSING_ERROR (1 << 5)
- #define PHP_SNMP_ERRNO_MULTIPLE_SET_QUERIES (1 << 6)
- #define PHP_SNMP_ERRNO_ANY ( \
- PHP_SNMP_ERRNO_GENERIC | \
- PHP_SNMP_ERRNO_TIMEOUT | \
- PHP_SNMP_ERRNO_ERROR_IN_REPLY | \
- PHP_SNMP_ERRNO_OID_NOT_INCREASING | \
- PHP_SNMP_ERRNO_OID_PARSING_ERROR | \
- PHP_SNMP_ERRNO_MULTIPLE_SET_QUERIES | \
- PHP_SNMP_ERRNO_NOERROR \
- )
- ZEND_DECLARE_MODULE_GLOBALS(snmp)
- static PHP_GINIT_FUNCTION(snmp);
- /* constant - can be shared among threads */
- static oid objid_mib[] = {1, 3, 6, 1, 2, 1};
- /* Handlers */
- static zend_object_handlers php_snmp_object_handlers;
- /* Class entries */
- zend_class_entry *php_snmp_ce;
- zend_class_entry *php_snmp_exception_ce;
- /* Class object properties */
- static HashTable php_snmp_properties;
- struct objid_query {
- int count;
- int offset;
- int step;
- zend_long non_repeaters;
- zend_long max_repetitions;
- int valueretrieval;
- bool array_output;
- bool oid_increasing_check;
- snmpobjarg *vars;
- };
- /* query an agent with GET method */
- #define SNMP_CMD_GET (1<<0)
- /* query an agent with GETNEXT method */
- #define SNMP_CMD_GETNEXT (1<<1)
- /* query an agent with SET method */
- #define SNMP_CMD_SET (1<<2)
- /* walk the mib */
- #define SNMP_CMD_WALK (1<<3)
- /* force values-only output */
- #define SNMP_NUMERIC_KEYS (1<<7)
- /* use user-supplied OID names for keys in array output mode in GET method */
- #define SNMP_ORIGINAL_NAMES_AS_KEYS (1<<8)
- /* use OID suffix (`index') for keys in array output mode in WALK method */
- #define SNMP_USE_SUFFIX_AS_KEYS (1<<9)
- #ifdef COMPILE_DL_SNMP
- ZEND_GET_MODULE(snmp)
- #endif
- /* {{{ PHP_GINIT_FUNCTION */
- static PHP_GINIT_FUNCTION(snmp)
- {
- snmp_globals->valueretrieval = SNMP_VALUE_LIBRARY;
- }
- /* }}} */
- #define PHP_SNMP_SESSION_FREE(a) { \
- if ((*session)->a) { \
- efree((*session)->a); \
- (*session)->a = NULL; \
- } \
- }
- static void netsnmp_session_free(php_snmp_session **session) /* {{{ */
- {
- if (*session) {
- PHP_SNMP_SESSION_FREE(peername);
- PHP_SNMP_SESSION_FREE(community);
- PHP_SNMP_SESSION_FREE(securityName);
- PHP_SNMP_SESSION_FREE(contextEngineID);
- efree(*session);
- *session = NULL;
- }
- }
- /* }}} */
- static void php_snmp_object_free_storage(zend_object *object) /* {{{ */
- {
- php_snmp_object *intern = php_snmp_fetch_object(object);
- if (!intern) {
- return;
- }
- netsnmp_session_free(&(intern->session));
- zend_object_std_dtor(&intern->zo);
- }
- /* }}} */
- static zend_object *php_snmp_object_new(zend_class_entry *class_type) /* {{{ */
- {
- php_snmp_object *intern;
- /* Allocate memory for it */
- intern = zend_object_alloc(sizeof(php_snmp_object), class_type);
- zend_object_std_init(&intern->zo, class_type);
- object_properties_init(&intern->zo, class_type);
- intern->zo.handlers = &php_snmp_object_handlers;
- return &intern->zo;
- }
- /* }}} */
- /* {{{ php_snmp_error
- *
- * Record last SNMP-related error in object
- *
- */
- static void php_snmp_error(zval *object, int type, const char *format, ...)
- {
- va_list args;
- php_snmp_object *snmp_object = NULL;
- if (object) {
- snmp_object = Z_SNMP_P(object);
- if (type == PHP_SNMP_ERRNO_NOERROR) {
- memset(snmp_object->snmp_errstr, 0, sizeof(snmp_object->snmp_errstr));
- } else {
- va_start(args, format);
- vsnprintf(snmp_object->snmp_errstr, sizeof(snmp_object->snmp_errstr) - 1, format, args);
- va_end(args);
- }
- snmp_object->snmp_errno = type;
- }
- if (type == PHP_SNMP_ERRNO_NOERROR) {
- return;
- }
- if (object && (snmp_object->exceptions_enabled & type)) {
- zend_throw_exception_ex(php_snmp_exception_ce, type, "%s", snmp_object->snmp_errstr);
- } else {
- va_start(args, format);
- php_verror(NULL, "", E_WARNING, format, args);
- va_end(args);
- }
- }
- /* }}} */
- /* {{{ php_snmp_getvalue
- *
- * SNMP value to zval converter
- *
- */
- static void php_snmp_getvalue(struct variable_list *vars, zval *snmpval, int valueretrieval)
- {
- zval val;
- char sbuf[512];
- char *buf = &(sbuf[0]);
- char *dbuf = (char *)NULL;
- int buflen = sizeof(sbuf) - 1;
- int val_len = vars->val_len;
- /* use emalloc() for large values, use static array otherwise */
- /* There is no way to know the size of buffer snprint_value() needs in order to print a value there.
- * So we are forced to probe it
- */
- while ((valueretrieval & SNMP_VALUE_PLAIN) == 0) {
- *buf = '\0';
- if (snprint_value(buf, buflen, vars->name, vars->name_length, vars) == -1) {
- if (val_len > 512*1024) {
- php_error_docref(NULL, E_WARNING, "snprint_value() asks for a buffer more than 512k, Net-SNMP bug?");
- break;
- }
- /* buffer is not long enough to hold full output, double it */
- val_len *= 2;
- } else {
- break;
- }
- if (buf == dbuf) {
- dbuf = (char *)erealloc(dbuf, val_len + 1);
- } else {
- dbuf = (char *)emalloc(val_len + 1);
- }
- buf = dbuf;
- buflen = val_len;
- }
- if((valueretrieval & SNMP_VALUE_PLAIN) && val_len > buflen){
- dbuf = (char *)emalloc(val_len + 1);
- buf = dbuf;
- buflen = val_len;
- }
- if (valueretrieval & SNMP_VALUE_PLAIN) {
- *buf = 0;
- switch (vars->type) {
- case ASN_BIT_STR: /* 0x03, asn1.h */
- ZVAL_STRINGL(&val, (char *)vars->val.bitstring, vars->val_len);
- break;
- case ASN_OCTET_STR: /* 0x04, asn1.h */
- case ASN_OPAQUE: /* 0x44, snmp_impl.h */
- ZVAL_STRINGL(&val, (char *)vars->val.string, vars->val_len);
- break;
- case ASN_NULL: /* 0x05, asn1.h */
- ZVAL_NULL(&val);
- break;
- case ASN_OBJECT_ID: /* 0x06, asn1.h */
- snprint_objid(buf, buflen, vars->val.objid, vars->val_len / sizeof(oid));
- ZVAL_STRING(&val, buf);
- break;
- case ASN_IPADDRESS: /* 0x40, snmp_impl.h */
- snprintf(buf, buflen, "%d.%d.%d.%d",
- (vars->val.string)[0], (vars->val.string)[1],
- (vars->val.string)[2], (vars->val.string)[3]);
- buf[buflen]=0;
- ZVAL_STRING(&val, buf);
- break;
- case ASN_COUNTER: /* 0x41, snmp_impl.h */
- case ASN_GAUGE: /* 0x42, snmp_impl.h */
- /* ASN_UNSIGNED is the same as ASN_GAUGE */
- case ASN_TIMETICKS: /* 0x43, snmp_impl.h */
- case ASN_UINTEGER: /* 0x47, snmp_impl.h */
- snprintf(buf, buflen, "%lu", *vars->val.integer);
- buf[buflen]=0;
- ZVAL_STRING(&val, buf);
- break;
- case ASN_INTEGER: /* 0x02, asn1.h */
- snprintf(buf, buflen, "%ld", *vars->val.integer);
- buf[buflen]=0;
- ZVAL_STRING(&val, buf);
- break;
- #if defined(NETSNMP_WITH_OPAQUE_SPECIAL_TYPES) || defined(OPAQUE_SPECIAL_TYPES)
- case ASN_OPAQUE_FLOAT: /* 0x78, asn1.h */
- snprintf(buf, buflen, "%f", *vars->val.floatVal);
- ZVAL_STRING(&val, buf);
- break;
- case ASN_OPAQUE_DOUBLE: /* 0x79, asn1.h */
- snprintf(buf, buflen, "%f", *vars->val.doubleVal);
- ZVAL_STRING(&val, buf);
- break;
- case ASN_OPAQUE_I64: /* 0x80, asn1.h */
- printI64(buf, vars->val.counter64);
- ZVAL_STRING(&val, buf);
- break;
- case ASN_OPAQUE_U64: /* 0x81, asn1.h */
- #endif
- case ASN_COUNTER64: /* 0x46, snmp_impl.h */
- printU64(buf, vars->val.counter64);
- ZVAL_STRING(&val, buf);
- break;
- default:
- ZVAL_STRING(&val, "Unknown value type");
- php_error_docref(NULL, E_WARNING, "Unknown value type: %u", vars->type);
- break;
- }
- } else /* use Net-SNMP value translation */ {
- /* we have desired string in buffer, just use it */
- ZVAL_STRING(&val, buf);
- }
- if (valueretrieval & SNMP_VALUE_OBJECT) {
- object_init(snmpval);
- add_property_long(snmpval, "type", vars->type);
- add_property_zval(snmpval, "value", &val);
- } else {
- ZVAL_COPY(snmpval, &val);
- }
- zval_ptr_dtor(&val);
- if (dbuf){ /* malloc was used to store value */
- efree(dbuf);
- }
- }
- /* }}} */
- /* {{{ php_snmp_internal
- *
- * SNMP object fetcher/setter for all SNMP versions
- *
- */
- static void php_snmp_internal(INTERNAL_FUNCTION_PARAMETERS, int st,
- struct snmp_session *session,
- struct objid_query *objid_query)
- {
- struct snmp_session *ss;
- struct snmp_pdu *pdu=NULL, *response;
- struct variable_list *vars;
- oid root[MAX_NAME_LEN];
- size_t rootlen = 0;
- int status, count, found;
- char buf[2048];
- char buf2[2048];
- bool keepwalking = true;
- char *err;
- zval snmpval;
- int snmp_errno;
- /* we start with retval=FALSE. If any actual data is acquired, retval will be set to appropriate type */
- RETVAL_FALSE;
- /* reset errno and errstr */
- php_snmp_error(getThis(), PHP_SNMP_ERRNO_NOERROR, "");
- if (st & SNMP_CMD_WALK) { /* remember root OID */
- memmove((char *)root, (char *)(objid_query->vars[0].name), (objid_query->vars[0].name_length) * sizeof(oid));
- rootlen = objid_query->vars[0].name_length;
- objid_query->offset = objid_query->count;
- }
- if ((ss = snmp_open(session)) == NULL) {
- snmp_error(session, NULL, NULL, &err);
- php_error_docref(NULL, E_WARNING, "Could not open snmp connection: %s", err);
- free(err);
- RETURN_FALSE;
- }
- if ((st & SNMP_CMD_SET) && objid_query->count > objid_query->step) {
- php_snmp_error(getThis(), PHP_SNMP_ERRNO_MULTIPLE_SET_QUERIES, "Can not fit all OIDs for SET query into one packet, using multiple queries");
- }
- while (keepwalking) {
- keepwalking = false;
- if (st & SNMP_CMD_WALK) {
- if (session->version == SNMP_VERSION_1) {
- pdu = snmp_pdu_create(SNMP_MSG_GETNEXT);
- } else {
- pdu = snmp_pdu_create(SNMP_MSG_GETBULK);
- pdu->non_repeaters = objid_query->non_repeaters;
- pdu->max_repetitions = objid_query->max_repetitions;
- }
- snmp_add_null_var(pdu, objid_query->vars[0].name, objid_query->vars[0].name_length);
- } else {
- if (st & SNMP_CMD_GET) {
- pdu = snmp_pdu_create(SNMP_MSG_GET);
- } else if (st & SNMP_CMD_GETNEXT) {
- pdu = snmp_pdu_create(SNMP_MSG_GETNEXT);
- } else if (st & SNMP_CMD_SET) {
- pdu = snmp_pdu_create(SNMP_MSG_SET);
- } else {
- snmp_close(ss);
- php_error_docref(NULL, E_ERROR, "Unknown SNMP command (internals)");
- RETURN_FALSE;
- }
- for (count = 0; objid_query->offset < objid_query->count && count < objid_query->step; objid_query->offset++, count++){
- if (st & SNMP_CMD_SET) {
- if ((snmp_errno = snmp_add_var(pdu, objid_query->vars[objid_query->offset].name, objid_query->vars[objid_query->offset].name_length, objid_query->vars[objid_query->offset].type, objid_query->vars[objid_query->offset].value))) {
- snprint_objid(buf, sizeof(buf), objid_query->vars[objid_query->offset].name, objid_query->vars[objid_query->offset].name_length);
- php_snmp_error(getThis(), PHP_SNMP_ERRNO_OID_PARSING_ERROR, "Could not add variable: OID='%s' type='%c' value='%s': %s", buf, objid_query->vars[objid_query->offset].type, objid_query->vars[objid_query->offset].value, snmp_api_errstring(snmp_errno));
- snmp_free_pdu(pdu);
- snmp_close(ss);
- RETURN_FALSE;
- }
- } else {
- snmp_add_null_var(pdu, objid_query->vars[objid_query->offset].name, objid_query->vars[objid_query->offset].name_length);
- }
- }
- if(pdu->variables == NULL){
- snmp_free_pdu(pdu);
- snmp_close(ss);
- RETURN_FALSE;
- }
- }
- retry:
- status = snmp_synch_response(ss, pdu, &response);
- if (status == STAT_SUCCESS) {
- if (response->errstat == SNMP_ERR_NOERROR) {
- if (st & SNMP_CMD_SET) {
- if (objid_query->offset < objid_query->count) { /* we have unprocessed OIDs */
- keepwalking = true;
- snmp_free_pdu(response);
- continue;
- }
- snmp_free_pdu(response);
- snmp_close(ss);
- RETURN_TRUE;
- }
- for (vars = response->variables; vars; vars = vars->next_variable) {
- /* do not output errors as values */
- if ( vars->type == SNMP_ENDOFMIBVIEW ||
- vars->type == SNMP_NOSUCHOBJECT ||
- vars->type == SNMP_NOSUCHINSTANCE ) {
- if ((st & SNMP_CMD_WALK) && Z_TYPE_P(return_value) == IS_ARRAY) {
- break;
- }
- snprint_objid(buf, sizeof(buf), vars->name, vars->name_length);
- snprint_value(buf2, sizeof(buf2), vars->name, vars->name_length, vars);
- php_snmp_error(getThis(), PHP_SNMP_ERRNO_ERROR_IN_REPLY, "Error in packet at '%s': %s", buf, buf2);
- continue;
- }
- if ((st & SNMP_CMD_WALK) &&
- (vars->name_length < rootlen || memcmp(root, vars->name, rootlen * sizeof(oid)))) { /* not part of this subtree */
- if (Z_TYPE_P(return_value) == IS_ARRAY) { /* some records are fetched already, shut down further lookup */
- keepwalking = false;
- } else {
- /* first fetched OID is out of subtree, fallback to GET query */
- st |= SNMP_CMD_GET;
- st ^= SNMP_CMD_WALK;
- objid_query->offset = 0;
- keepwalking = true;
- }
- break;
- }
- ZVAL_NULL(&snmpval);
- php_snmp_getvalue(vars, &snmpval, objid_query->valueretrieval);
- if (objid_query->array_output) {
- if (Z_TYPE_P(return_value) == IS_TRUE || Z_TYPE_P(return_value) == IS_FALSE) {
- array_init(return_value);
- }
- if (st & SNMP_NUMERIC_KEYS) {
- add_next_index_zval(return_value, &snmpval);
- } else if (st & SNMP_ORIGINAL_NAMES_AS_KEYS && st & SNMP_CMD_GET) {
- found = 0;
- for (count = 0; count < objid_query->count; count++) {
- if (objid_query->vars[count].name_length == vars->name_length && snmp_oid_compare(objid_query->vars[count].name, objid_query->vars[count].name_length, vars->name, vars->name_length) == 0) {
- found = 1;
- objid_query->vars[count].name_length = 0; /* mark this name as used */
- break;
- }
- }
- if (found) {
- add_assoc_zval(return_value, objid_query->vars[count].oid, &snmpval);
- } else {
- snprint_objid(buf2, sizeof(buf2), vars->name, vars->name_length);
- php_error_docref(NULL, E_WARNING, "Could not find original OID name for '%s'", buf2);
- }
- } else if (st & SNMP_USE_SUFFIX_AS_KEYS && st & SNMP_CMD_WALK) {
- snprint_objid(buf2, sizeof(buf2), vars->name, vars->name_length);
- if (rootlen <= vars->name_length && snmp_oid_compare(root, rootlen, vars->name, rootlen) == 0) {
- buf2[0] = '\0';
- count = rootlen;
- while(count < vars->name_length){
- sprintf(buf, "%lu.", vars->name[count]);
- strcat(buf2, buf);
- count++;
- }
- buf2[strlen(buf2) - 1] = '\0'; /* remove trailing '.' */
- }
- add_assoc_zval(return_value, buf2, &snmpval);
- } else {
- snprint_objid(buf2, sizeof(buf2), vars->name, vars->name_length);
- add_assoc_zval(return_value, buf2, &snmpval);
- }
- } else {
- ZVAL_COPY_VALUE(return_value, &snmpval);
- break;
- }
- /* OID increase check */
- if (st & SNMP_CMD_WALK) {
- if (objid_query->oid_increasing_check && snmp_oid_compare(objid_query->vars[0].name, objid_query->vars[0].name_length, vars->name, vars->name_length) >= 0) {
- snprint_objid(buf2, sizeof(buf2), vars->name, vars->name_length);
- php_snmp_error(getThis(), PHP_SNMP_ERRNO_OID_NOT_INCREASING, "Error: OID not increasing: %s", buf2);
- keepwalking = false;
- } else {
- memmove((char *)(objid_query->vars[0].name), (char *)vars->name, vars->name_length * sizeof(oid));
- objid_query->vars[0].name_length = vars->name_length;
- keepwalking = true;
- }
- }
- }
- if (objid_query->offset < objid_query->count) { /* we have unprocessed OIDs */
- keepwalking = true;
- }
- } else {
- if (st & SNMP_CMD_WALK && response->errstat == SNMP_ERR_TOOBIG && objid_query->max_repetitions > 1) { /* Answer will not fit into single packet */
- objid_query->max_repetitions /= 2;
- snmp_free_pdu(response);
- keepwalking = true;
- continue;
- }
- if (!(st & SNMP_CMD_WALK) || response->errstat != SNMP_ERR_NOSUCHNAME || Z_TYPE_P(return_value) == IS_TRUE || Z_TYPE_P(return_value) == IS_FALSE) {
- for (count=1, vars = response->variables;
- vars && count != response->errindex;
- vars = vars->next_variable, count++);
- if (st & (SNMP_CMD_GET | SNMP_CMD_GETNEXT) && response->errstat == SNMP_ERR_TOOBIG && objid_query->step > 1) { /* Answer will not fit into single packet */
- objid_query->offset = ((objid_query->offset > objid_query->step) ? (objid_query->offset - objid_query->step) : 0 );
- objid_query->step /= 2;
- snmp_free_pdu(response);
- keepwalking = true;
- continue;
- }
- if (vars) {
- snprint_objid(buf, sizeof(buf), vars->name, vars->name_length);
- php_snmp_error(getThis(), PHP_SNMP_ERRNO_ERROR_IN_REPLY, "Error in packet at '%s': %s", buf, snmp_errstring(response->errstat));
- } else {
- php_snmp_error(getThis(), PHP_SNMP_ERRNO_ERROR_IN_REPLY, "Error in packet at %u object_id: %s", response->errindex, snmp_errstring(response->errstat));
- }
- if (st & (SNMP_CMD_GET | SNMP_CMD_GETNEXT)) { /* cut out bogus OID and retry */
- if ((pdu = snmp_fix_pdu(response, ((st & SNMP_CMD_GET) ? SNMP_MSG_GET : SNMP_MSG_GETNEXT) )) != NULL) {
- snmp_free_pdu(response);
- goto retry;
- }
- }
- snmp_free_pdu(response);
- snmp_close(ss);
- if (objid_query->array_output) {
- zval_ptr_dtor(return_value);
- }
- RETURN_FALSE;
- }
- }
- } else if (status == STAT_TIMEOUT) {
- php_snmp_error(getThis(), PHP_SNMP_ERRNO_TIMEOUT, "No response from %s", session->peername);
- if (objid_query->array_output) {
- zval_ptr_dtor(return_value);
- }
- snmp_close(ss);
- RETURN_FALSE;
- } else { /* status == STAT_ERROR */
- snmp_error(ss, NULL, NULL, &err);
- php_snmp_error(getThis(), PHP_SNMP_ERRNO_GENERIC, "Fatal error: %s", err);
- free(err);
- if (objid_query->array_output) {
- zval_ptr_dtor(return_value);
- }
- snmp_close(ss);
- RETURN_FALSE;
- }
- if (response) {
- snmp_free_pdu(response);
- }
- } /* keepwalking */
- snmp_close(ss);
- }
- /* }}} */
- /* {{{ php_snmp_parse_oid
- *
- * OID parser (and type, value for SNMP_SET command)
- */
- static bool php_snmp_parse_oid(
- zval *object, int st, struct objid_query *objid_query, zend_string *oid_str, HashTable *oid_ht,
- zend_string *type_str, HashTable *type_ht, zend_string *value_str, HashTable *value_ht
- ) {
- char *pptr;
- uint32_t idx_type = 0, idx_value = 0;
- zval *tmp_oid, *tmp_type, *tmp_value;
- objid_query->count = 0;
- objid_query->array_output = (st & SNMP_CMD_WALK) != 0;
- if (oid_str) {
- objid_query->vars = (snmpobjarg *)emalloc(sizeof(snmpobjarg));
- objid_query->vars[objid_query->count].oid = ZSTR_VAL(oid_str);
- if (st & SNMP_CMD_SET) {
- if (type_ht) {
- zend_type_error("Type must be of type string when object ID is a string");
- efree(objid_query->vars);
- return false;
- }
- if (value_ht) {
- zend_type_error("Value must be of type string when object ID is a string");
- efree(objid_query->vars);
- return false;
- }
- /* Both type and value must be valid strings */
- ZEND_ASSERT(type_str && value_str);
- if (ZSTR_LEN(type_str) != 1) {
- zend_value_error("Type must be a single character");
- efree(objid_query->vars);
- return false;
- }
- pptr = ZSTR_VAL(type_str);
- objid_query->vars[objid_query->count].type = *pptr;
- objid_query->vars[objid_query->count].value = ZSTR_VAL(value_str);
- }
- objid_query->count++;
- } else if (oid_ht) { /* we got objid array */
- if (zend_hash_num_elements(oid_ht) == 0) {
- zend_value_error("Array of object IDs cannot be empty");
- return false;
- }
- objid_query->vars = (snmpobjarg *)safe_emalloc(sizeof(snmpobjarg), zend_hash_num_elements(oid_ht), 0);
- objid_query->array_output = (st & SNMP_CMD_SET) == 0;
- ZEND_HASH_FOREACH_VAL(oid_ht, tmp_oid) {
- convert_to_string(tmp_oid);
- objid_query->vars[objid_query->count].oid = Z_STRVAL_P(tmp_oid);
- if (st & SNMP_CMD_SET) {
- if (type_str) {
- pptr = ZSTR_VAL(type_str);
- objid_query->vars[objid_query->count].type = *pptr;
- } else if (type_ht) {
- while (idx_type < type_ht->nNumUsed) {
- tmp_type = &type_ht->arData[idx_type].val;
- if (Z_TYPE_P(tmp_type) != IS_UNDEF) {
- break;
- }
- idx_type++;
- }
- if (idx_type < type_ht->nNumUsed) {
- convert_to_string(tmp_type);
- if (Z_STRLEN_P(tmp_type) != 1) {
- zend_value_error("Type must be a single character");
- efree(objid_query->vars);
- return false;
- }
- pptr = Z_STRVAL_P(tmp_type);
- objid_query->vars[objid_query->count].type = *pptr;
- idx_type++;
- } else {
- php_error_docref(NULL, E_WARNING, "'%s': no type set", Z_STRVAL_P(tmp_oid));
- efree(objid_query->vars);
- return false;
- }
- }
- if (value_str) {
- objid_query->vars[objid_query->count].value = ZSTR_VAL(value_str);
- } else if (value_ht) {
- while (idx_value < value_ht->nNumUsed) {
- tmp_value = &value_ht->arData[idx_value].val;
- if (Z_TYPE_P(tmp_value) != IS_UNDEF) {
- break;
- }
- idx_value++;
- }
- if (idx_value < value_ht->nNumUsed) {
- convert_to_string(tmp_value);
- objid_query->vars[objid_query->count].value = Z_STRVAL_P(tmp_value);
- idx_value++;
- } else {
- php_error_docref(NULL, E_WARNING, "'%s': no value set", Z_STRVAL_P(tmp_oid));
- efree(objid_query->vars);
- return false;
- }
- }
- }
- objid_query->count++;
- } ZEND_HASH_FOREACH_END();
- }
- /* now parse all OIDs */
- if (st & SNMP_CMD_WALK) {
- if (objid_query->count > 1) {
- php_snmp_error(object, PHP_SNMP_ERRNO_OID_PARSING_ERROR, "Multi OID walks are not supported!");
- efree(objid_query->vars);
- return false;
- }
- objid_query->vars[0].name_length = MAX_NAME_LEN;
- if (strlen(objid_query->vars[0].oid)) { /* on a walk, an empty string means top of tree - no error */
- if (!snmp_parse_oid(objid_query->vars[0].oid, objid_query->vars[0].name, &(objid_query->vars[0].name_length))) {
- php_snmp_error(object, PHP_SNMP_ERRNO_OID_PARSING_ERROR, "Invalid object identifier: %s", objid_query->vars[0].oid);
- efree(objid_query->vars);
- return false;
- }
- } else {
- memmove((char *)objid_query->vars[0].name, (char *)objid_mib, sizeof(objid_mib));
- objid_query->vars[0].name_length = sizeof(objid_mib) / sizeof(oid);
- }
- } else {
- for (objid_query->offset = 0; objid_query->offset < objid_query->count; objid_query->offset++) {
- objid_query->vars[objid_query->offset].name_length = MAX_OID_LEN;
- if (!snmp_parse_oid(objid_query->vars[objid_query->offset].oid, objid_query->vars[objid_query->offset].name, &(objid_query->vars[objid_query->offset].name_length))) {
- php_snmp_error(object, PHP_SNMP_ERRNO_OID_PARSING_ERROR, "Invalid object identifier: %s", objid_query->vars[objid_query->offset].oid);
- efree(objid_query->vars);
- return false;
- }
- }
- }
- objid_query->offset = 0;
- objid_query->step = objid_query->count;
- return (objid_query->count > 0);
- }
- /* }}} */
- /* {{{ netsnmp_session_init
- allocates memory for session and session->peername, caller should free it manually using netsnmp_session_free() and efree()
- */
- static bool netsnmp_session_init(php_snmp_session **session_p, int version, zend_string *hostname, zend_string *community, int timeout, int retries)
- {
- php_snmp_session *session;
- char *pptr, *host_ptr;
- bool force_ipv6 = false;
- int n;
- struct sockaddr **psal;
- struct sockaddr **res;
- // TODO: Do not strip and re-add the port in peername?
- unsigned remote_port = SNMP_PORT;
- *session_p = (php_snmp_session *)emalloc(sizeof(php_snmp_session));
- session = *session_p;
- memset(session, 0, sizeof(php_snmp_session));
- snmp_sess_init(session);
- session->version = version;
- session->peername = emalloc(MAX_NAME_LEN);
- /* we copy original hostname for further processing */
- strlcpy(session->peername, ZSTR_VAL(hostname), MAX_NAME_LEN);
- host_ptr = session->peername;
- /* Reading the hostname and its optional non-default port number */
- if (*host_ptr == '[') { /* IPv6 address */
- force_ipv6 = true;
- host_ptr++;
- if ((pptr = strchr(host_ptr, ']'))) {
- if (pptr[1] == ':') {
- remote_port = atoi(pptr + 2);
- }
- *pptr = '\0';
- } else {
- php_error_docref(NULL, E_WARNING, "Malformed IPv6 address, closing square bracket missing");
- return false;
- }
- } else { /* IPv4 address */
- if ((pptr = strchr(host_ptr, ':'))) {
- remote_port = atoi(pptr + 1);
- *pptr = '\0';
- }
- }
- /* since Net-SNMP library requires 'udp6:' prefix for all IPv6 addresses (in FQDN form too) we need to
- perform possible name resolution before running any SNMP queries */
- if ((n = php_network_getaddresses(host_ptr, SOCK_DGRAM, &psal, NULL)) == 0) { /* some resolver error */
- /* warnings sent, bailing out */
- return false;
- }
- /* we have everything we need in psal, flush peername and fill it properly */
- *(session->peername) = '\0';
- res = psal;
- while (n-- > 0) {
- pptr = session->peername;
- #if HAVE_GETADDRINFO && HAVE_IPV6 && HAVE_INET_NTOP
- if (force_ipv6 && (*res)->sa_family != AF_INET6) {
- res++;
- continue;
- }
- if ((*res)->sa_family == AF_INET6) {
- strcpy(session->peername, "udp6:[");
- pptr = session->peername + strlen(session->peername);
- inet_ntop((*res)->sa_family, &(((struct sockaddr_in6*)(*res))->sin6_addr), pptr, MAX_NAME_LEN);
- strcat(pptr, "]");
- } else if ((*res)->sa_family == AF_INET) {
- inet_ntop((*res)->sa_family, &(((struct sockaddr_in*)(*res))->sin_addr), pptr, MAX_NAME_LEN);
- } else {
- res++;
- continue;
- }
- #else
- if ((*res)->sa_family != AF_INET) {
- res++;
- continue;
- }
- strcat(pptr, inet_ntoa(((struct sockaddr_in*)(*res))->sin_addr));
- #endif
- break;
- }
- if (strlen(session->peername) == 0) {
- php_error_docref(NULL, E_WARNING, "Unknown failure while resolving '%s'", ZSTR_VAL(hostname));
- return false;
- }
- /* XXX FIXME
- There should be check for non-empty session->peername!
- */
- /* put back non-standard SNMP port */
- if (remote_port != SNMP_PORT) {
- pptr = session->peername + strlen(session->peername);
- sprintf(pptr, ":%d", remote_port);
- }
- php_network_freeaddresses(psal);
- if (version == SNMP_VERSION_3) {
- /* Setting the security name. */
- session->securityName = estrdup(ZSTR_VAL(community));
- session->securityNameLen = ZSTR_LEN(community);
- } else {
- session->authenticator = NULL;
- session->community = (u_char *)estrdup(ZSTR_VAL(community));
- session->community_len = ZSTR_LEN(community);
- }
- session->retries = retries;
- session->timeout = timeout;
- return true;
- }
- /* }}} */
- /* {{{ Set the security level in the snmpv3 session */
- static bool netsnmp_session_set_sec_level(struct snmp_session *s, zend_string *level)
- {
- if (zend_string_equals_literal_ci(level, "noAuthNoPriv") || zend_string_equals_literal_ci(level, "nanp")) {
- s->securityLevel = SNMP_SEC_LEVEL_NOAUTH;
- } else if (zend_string_equals_literal_ci(level, "authNoPriv") || zend_string_equals_literal_ci(level, "anp")) {
- s->securityLevel = SNMP_SEC_LEVEL_AUTHNOPRIV;
- } else if (zend_string_equals_literal_ci(level, "authPriv") || zend_string_equals_literal_ci(level, "ap")) {
- s->securityLevel = SNMP_SEC_LEVEL_AUTHPRIV;
- } else {
- zend_value_error("Security level must be one of \"noAuthNoPriv\", \"authNoPriv\", or \"authPriv\"");
- return false;
- }
- return true;
- }
- /* }}} */
- /* {{{ Set the authentication protocol in the snmpv3 session */
- static bool netsnmp_session_set_auth_protocol(struct snmp_session *s, zend_string *prot)
- {
- #ifndef DISABLE_MD5
- if (zend_string_equals_literal_ci(prot, "MD5")) {
- s->securityAuthProto = usmHMACMD5AuthProtocol;
- s->securityAuthProtoLen = USM_AUTH_PROTO_MD5_LEN;
- return true;
- }
- #endif
- if (zend_string_equals_literal_ci(prot, "SHA")) {
- s->securityAuthProto = usmHMACSHA1AuthProtocol;
- s->securityAuthProtoLen = USM_AUTH_PROTO_SHA_LEN;
- return true;
- }
- #ifdef HAVE_SNMP_SHA256
- if (zend_string_equals_literal_ci(prot, "SHA256")) {
- s->securityAuthProto = usmHMAC192SHA256AuthProtocol;
- s->securityAuthProtoLen = sizeof(usmHMAC192SHA256AuthProtocol) / sizeof(oid);
- return true;
- }
- #endif
- #ifdef HAVE_SNMP_SHA512
- if (zend_string_equals_literal_ci(prot, "SHA512")) {
- s->securityAuthProto = usmHMAC384SHA512AuthProtocol;
- s->securityAuthProtoLen = sizeof(usmHMAC384SHA512AuthProtocol) / sizeof(oid);
- return true;
- }
- #endif
- smart_string err = {0};
- smart_string_appends(&err, "Authentication protocol must be \"SHA\"");
- #ifdef HAVE_SNMP_SHA256
- smart_string_appends(&err, " or \"SHA256\"");
- #endif
- #ifdef HAVE_SNMP_SHA512
- smart_string_appends(&err, " or \"SHA512\"");
- #endif
- #ifndef DISABLE_MD5
- smart_string_appends(&err, " or \"MD5\"");
- #endif
- smart_string_0(&err);
- zend_value_error("%s", err.c);
- smart_string_free(&err);
- return false;
- }
- /* }}} */
- /* {{{ Set the security protocol in the snmpv3 session */
- static bool netsnmp_session_set_sec_protocol(struct snmp_session *s, zend_string *prot)
- {
- #ifndef NETSNMP_DISABLE_DES
- if (zend_string_equals_literal_ci(prot, "DES")) {
- s->securityPrivProto = usmDESPrivProtocol;
- s->securityPrivProtoLen = USM_PRIV_PROTO_DES_LEN;
- return true;
- }
- #endif
- #ifdef HAVE_AES
- if (zend_string_equals_literal_ci(prot, "AES128")
- || zend_string_equals_literal_ci(prot, "AES")) {
- s->securityPrivProto = usmAESPrivProtocol;
- s->securityPrivProtoLen = USM_PRIV_PROTO_AES_LEN;
- return true;
- }
- #endif
- #ifdef HAVE_AES
- # ifndef NETSNMP_DISABLE_DES
- zend_value_error("Security protocol must be one of \"DES\", \"AES128\", or \"AES\"");
- # else
- zend_value_error("Security protocol must be one of \"AES128\", or \"AES\"");
- # endif
- #else
- # ifndef NETSNMP_DISABLE_DES
- zend_value_error("Security protocol must be \"DES\"");
- # else
- zend_value_error("No security protocol supported");
- # endif
- #endif
- return false;
- }
- /* }}} */
- /* {{{ Make key from pass phrase in the snmpv3 session */
- static bool netsnmp_session_gen_auth_key(struct snmp_session *s, zend_string *pass)
- {
- int snmp_errno;
- s->securityAuthKeyLen = USM_AUTH_KU_LEN;
- if ((snmp_errno = generate_Ku(s->securityAuthProto, s->securityAuthProtoLen,
- (u_char *) ZSTR_VAL(pass), ZSTR_LEN(pass),
- s->securityAuthKey, &(s->securityAuthKeyLen)))) {
- php_error_docref(NULL, E_WARNING, "Error generating a key for authentication pass phrase '%s': %s", ZSTR_VAL(pass), snmp_api_errstring(snmp_errno));
- return false;
- }
- return true;
- }
- /* }}} */
- /* {{{ Make key from pass phrase in the snmpv3 session */
- static bool netsnmp_session_gen_sec_key(struct snmp_session *s, zend_string *pass)
- {
- int snmp_errno;
- s->securityPrivKeyLen = USM_PRIV_KU_LEN;
- if ((snmp_errno = generate_Ku(s->securityAuthProto, s->securityAuthProtoLen,
- (u_char *)ZSTR_VAL(pass), ZSTR_LEN(pass),
- s->securityPrivKey, &(s->securityPrivKeyLen)))) {
- php_error_docref(NULL, E_WARNING, "Error generating a key for privacy pass phrase '%s': %s", ZSTR_VAL(pass), snmp_api_errstring(snmp_errno));
- return false;
- }
- return true;
- }
- /* }}} */
- /* {{{ Set context Engine Id in the snmpv3 session */
- static bool netsnmp_session_set_contextEngineID(struct snmp_session *s, zend_string * contextEngineID)
- {
- size_t ebuf_len = 32, eout_len = 0;
- u_char *ebuf = (u_char *) emalloc(ebuf_len);
- if (!snmp_hex_to_binary(&ebuf, &ebuf_len, &eout_len, 1, ZSTR_VAL(contextEngineID))) {
- // TODO Promote to Error?
- php_error_docref(NULL, E_WARNING, "Bad engine ID value '%s'", ZSTR_VAL(contextEngineID));
- efree(ebuf);
- return false;
- }
- if (s->contextEngineID) {
- efree(s->contextEngineID);
- }
- s->contextEngineID = ebuf;
- s->contextEngineIDLen = eout_len;
- return true;
- }
- /* }}} */
- /* {{{ Set all snmpv3-related security options */
- static bool netsnmp_session_set_security(struct snmp_session *session, zend_string *sec_level,
- zend_string *auth_protocol, zend_string *auth_passphrase, zend_string *priv_protocol,
- zend_string *priv_passphrase, zend_string *contextName, zend_string *contextEngineID)
- {
- /* Setting the security level. */
- if (!netsnmp_session_set_sec_level(session, sec_level)) {
- /* ValueError already generated, just bail out */
- return false;
- }
- if (session->securityLevel == SNMP_SEC_LEVEL_AUTHNOPRIV || session->securityLevel == SNMP_SEC_LEVEL_AUTHPRIV) {
- /* Setting the authentication protocol. */
- if (!netsnmp_session_set_auth_protocol(session, auth_protocol)) {
- /* ValueError already generated, just bail out */
- return false;
- }
- /* Setting the authentication passphrase. */
- if (!netsnmp_session_gen_auth_key(session, auth_passphrase)) {
- /* Warning message sent already, just bail out */
- return false;
- }
- if (session->securityLevel == SNMP_SEC_LEVEL_AUTHPRIV) {
- /* Setting the security protocol. */
- if (!netsnmp_session_set_sec_protocol(session, priv_protocol)) {
- /* ValueError already generated, just bail out */
- return false;
- }
- /* Setting the security protocol passphrase. */
- if (!netsnmp_session_gen_sec_key(session, priv_passphrase)) {
- /* Warning message sent already, just bail out */
- return false;
- }
- }
- }
- /* Setting contextName if specified */
- if (contextName) {
- session->contextName = ZSTR_VAL(contextName);
- session->contextNameLen = ZSTR_LEN(contextName);
- }
- /* Setting contextEngineIS if specified */
- if (contextEngineID && ZSTR_LEN(contextEngineID) && !netsnmp_session_set_contextEngineID(session, contextEngineID)) {
- /* Warning message sent already, just bail out */
- return false;
- }
- return true;
- }
- /* }}} */
- /* {{{ php_snmp
- *
- * Generic SNMP handler for all versions.
- * This function makes use of the internal SNMP object fetcher.
- * Used both in old (non-OO) and OO API
- *
- */
- static void php_snmp(INTERNAL_FUNCTION_PARAMETERS, int st, int version)
- {
- zend_string *oid_str, *type_str = NULL, *value_str = NULL;
- HashTable *oid_ht, *type_ht = NULL, *value_ht = NULL;
- zend_string *a1 = NULL, *a2 = NULL, *a3 = NULL, *a4 = NULL, *a5 = NULL, *a6 = NULL, *a7 = NULL;
- bool use_orignames = 0, suffix_keys = 0;
- zend_long timeout = SNMP_DEFAULT_TIMEOUT;
- zend_long retries = SNMP_DEFAULT_RETRIES;
- struct objid_query objid_query;
- php_snmp_session *session;
- int session_less_mode = (getThis() == NULL);
- php_snmp_object *snmp_object;
- php_snmp_object glob_snmp_object;
- objid_query.max_repetitions = -1;
- objid_query.non_repeaters = 0;
- objid_query.valueretrieval = SNMP_G(valueretrieval);
- objid_query.oid_increasing_check = true;
- if (session_less_mode) {
- if (version == SNMP_VERSION_3) {
- if (st & SNMP_CMD_SET) {
- ZEND_PARSE_PARAMETERS_START(10, 12)
- Z_PARAM_STR(a1)
- Z_PARAM_STR(a2)
- Z_PARAM_STR(a3)
- Z_PARAM_STR(a4)
- Z_PARAM_STR(a5)
- Z_PARAM_STR(a6)
- Z_PARAM_STR(a7)
- Z_PARAM_ARRAY_HT_OR_STR(oid_ht, oid_str)
- Z_PARAM_ARRAY_HT_OR_STR(type_ht, type_str)
- Z_PARAM_ARRAY_HT_OR_STR(value_ht, value_str)
- Z_PARAM_OPTIONAL
- Z_PARAM_LONG(timeout)
- Z_PARAM_LONG(retries)
- ZEND_PARSE_PARAMETERS_END();
- } else {
- /* SNMP_CMD_GET
- * SNMP_CMD_GETNEXT
- * SNMP_CMD_WALK
- */
- ZEND_PARSE_PARAMETERS_START(8, 10)
- Z_PARAM_STR(a1)
- Z_PARAM_STR(a2)
- Z_PARAM_STR(a3)
- Z_PARAM_STR(a4)
- Z_PARAM_STR(a5)
- Z_PARAM_STR(a6)
- Z_PARAM_STR(a7)
- Z_PARAM_ARRAY_HT_OR_STR(oid_ht, oid_str)
- Z_PARAM_OPTIONAL
- Z_PARAM_LONG(timeout)
- Z_PARAM_LONG(retries)
- ZEND_PARSE_PARAMETERS_END();
- }
- } else {
- if (st & SNMP_CMD_SET) {
- ZEND_PARSE_PARAMETERS_START(5, 7)
- Z_PARAM_STR(a1)
- Z_PARAM_STR(a2)
- Z_PARAM_ARRAY_HT_OR_STR(oid_ht, oid_str)
- Z_PARAM_ARRAY_HT_OR_STR(type_ht, type_str)
- Z_PARAM_ARRAY_HT_OR_STR(value_ht, value_str)
- Z_PARAM_OPTIONAL
- Z_PARAM_LONG(timeout)
- Z_PARAM_LONG(retries)
- ZEND_PARSE_PARAMETERS_END();
- } else {
- /* SNMP_CMD_GET
- * SNMP_CMD_GETNEXT
- * SNMP_CMD_WALK
- */
- ZEND_PARSE_PARAMETERS_START(3, 5)
- Z_PARAM_STR(a1)
- Z_PARAM_STR(a2)
- Z_PARAM_ARRAY_HT_OR_STR(oid_ht, oid_str)
- Z_PARAM_OPTIONAL
- Z_PARAM_LONG(timeout)
- Z_PARAM_LONG(retries)
- ZEND_PARSE_PARAMETERS_END();
- }
- }
- } else {
- if (st & SNMP_CMD_SET) {
- ZEND_PARSE_PARAMETERS_START(3, 3)
- Z_PARAM_ARRAY_HT_OR_STR(oid_ht, oid_str)
- Z_PARAM_ARRAY_HT_OR_STR(type_ht, type_str)
- Z_PARAM_ARRAY_HT_OR_STR(value_ht, value_str)
- ZEND_PARSE_PARAMETERS_END();
- } else if (st & SNMP_CMD_WALK) {
- ZEND_PARSE_PARAMETERS_START(1, 4)
- Z_PARAM_ARRAY_HT_OR_STR(oid_ht, oid_str)
- Z_PARAM_OPTIONAL
- Z_PARAM_BOOL(suffix_keys)
- Z_PARAM_LONG(objid_query.max_repetitions)
- Z_PARAM_LONG(objid_query.non_repeaters)
- ZEND_PARSE_PARAMETERS_END();
- if (suffix_keys) {
- st |= SNMP_USE_SUFFIX_AS_KEYS;
- }
- } else if (st & SNMP_CMD_GET) {
- ZEND_PARSE_PARAMETERS_START(1, 2)
- Z_PARAM_ARRAY_HT_OR_STR(oid_ht, oid_str)
- Z_PARAM_OPTIONAL
- Z_PARAM_BOOL(use_orignames)
- ZEND_PARSE_PARAMETERS_END();
- if (use_orignames) {
- st |= SNMP_ORIGINAL_NAMES_AS_KEYS;
- }
- } else {
- /* SNMP_CMD_GETNEXT
- */
- ZEND_PARSE_PARAMETERS_START(1, 1)
- Z_PARAM_ARRAY_HT_OR_STR(oid_ht, oid_str)
- ZEND_PARSE_PARAMETERS_END();
- }
- }
- if (!php_snmp_parse_oid(getThis(), st, &objid_query, oid_str, oid_ht, type_str, type_ht, value_str, value_ht)) {
- RETURN_FALSE;
- }
- if (session_less_mode) {
- if (!netsnmp_session_init(&session, version, a1, a2, timeout, retries)) {
- efree(objid_query.vars);
- netsnmp_session_free(&session);
- RETURN_FALSE;
- }
- if (version == SNMP_VERSION_3 && !netsnmp_session_set_security(session, a3, a4, a5, a6, a7, NULL, NULL)) {
- efree(objid_query.vars);
- netsnmp_session_free(&session);
- /* Warning message sent already, just bail out */
- RETURN_FALSE;
- }
- } else {
- zval *object = getThis();
- snmp_object = Z_SNMP_P(object);
- session = snmp_object->session;
- if (!session) {
- zend_throw_error(NULL, "Invalid or uninitialized SNMP object");
- efree(objid_query.vars);
- RETURN_THROWS();
- }
- if (snmp_object->max_oids > 0) {
- objid_query.step = snmp_object->max_oids;
- if (objid_query.max_repetitions < 0) { /* unspecified in function call, use session-wise */
- objid_query.max_repetitions = snmp_object->max_oids;
- }
- }
- objid_query.oid_increasing_check = snmp_object->oid_increasing_check;
- objid_query.valueretrieval = snmp_object->valueretrieval;
- glob_snmp_object.enum_print = netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_PRINT_NUMERIC_ENUM);
- netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_PRINT_NUMERIC_ENUM, snmp_object->enum_print);
- glob_snmp_object.quick_print = netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT);
- netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT, snmp_object->quick_print);
- glob_snmp_object.oid_output_format = netsnmp_ds_get_int(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_OID_OUTPUT_FORMAT);
- netsnmp_ds_set_int(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_OID_OUTPUT_FORMAT, snmp_object->oid_output_format);
- }
- if (objid_query.max_repetitions < 0) {
- objid_query.max_repetitions = 20; /* provide correct default value */
- }
- php_snmp_internal(INTERNAL_FUNCTION_PARAM_PASSTHRU, st, session, &objid_query);
- efree(objid_query.vars);
- if (session_less_mode) {
- netsnmp_session_free(&session);
- } else {
- netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_PRINT_NUMERIC_ENUM, glob_snmp_object.enum_print);
- netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT, glob_snmp_object.quick_print);
- netsnmp_ds_set_int(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_OID_OUTPUT_FORMAT, glob_snmp_object.oid_output_format);
- }
- }
- /* }}} */
- /* {{{ Fetch a SNMP object */
- PHP_FUNCTION(snmpget)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_GET, SNMP_VERSION_1);
- }
- /* }}} */
- /* {{{ Fetch a SNMP object */
- PHP_FUNCTION(snmpgetnext)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_GETNEXT, SNMP_VERSION_1);
- }
- /* }}} */
- /* {{{ Return all objects under the specified object id */
- PHP_FUNCTION(snmpwalk)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, (SNMP_CMD_WALK | SNMP_NUMERIC_KEYS), SNMP_VERSION_1);
- }
- /* }}} */
- /* {{{ Return all objects including their respective object id within the specified one */
- PHP_FUNCTION(snmprealwalk)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_WALK, SNMP_VERSION_1);
- }
- /* }}} */
- /* {{{ Set the value of a SNMP object */
- PHP_FUNCTION(snmpset)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_SET, SNMP_VERSION_1);
- }
- /* }}} */
- /* {{{ Return the current status of quick_print */
- PHP_FUNCTION(snmp_get_quick_print)
- {
- if (zend_parse_parameters_none() == FAILURE) {
- RETURN_THROWS();
- }
- RETURN_BOOL(netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT));
- }
- /* }}} */
- /* {{{ Return all objects including their respective object id within the specified one */
- PHP_FUNCTION(snmp_set_quick_print)
- {
- bool a1;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "b", &a1) == FAILURE) {
- RETURN_THROWS();
- }
- netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT, (int)a1);
- RETURN_TRUE;
- }
- /* }}} */
- /* {{{ Return all values that are enums with their enum value instead of the raw integer */
- PHP_FUNCTION(snmp_set_enum_print)
- {
- bool a1;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "b", &a1) == FAILURE) {
- RETURN_THROWS();
- }
- netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_PRINT_NUMERIC_ENUM, (int) a1);
- RETURN_TRUE;
- }
- /* }}} */
- /* {{{ Set the OID output format. */
- PHP_FUNCTION(snmp_set_oid_output_format)
- {
- zend_long a1;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &a1) == FAILURE) {
- RETURN_THROWS();
- }
- switch (a1) {
- case NETSNMP_OID_OUTPUT_SUFFIX:
- case NETSNMP_OID_OUTPUT_MODULE:
- case NETSNMP_OID_OUTPUT_FULL:
- case NETSNMP_OID_OUTPUT_NUMERIC:
- case NETSNMP_OID_OUTPUT_UCD:
- case NETSNMP_OID_OUTPUT_NONE:
- netsnmp_ds_set_int(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_OID_OUTPUT_FORMAT, a1);
- RETURN_TRUE;
- default:
- zend_argument_value_error(1, "must be an SNMP_OID_OUTPUT_* constant");
- RETURN_THROWS();
- }
- }
- /* }}} */
- /* {{{ Fetch a SNMP object */
- PHP_FUNCTION(snmp2_get)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_GET, SNMP_VERSION_2c);
- }
- /* }}} */
- /* {{{ Fetch a SNMP object */
- PHP_FUNCTION(snmp2_getnext)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_GETNEXT, SNMP_VERSION_2c);
- }
- /* }}} */
- /* {{{ Return all objects under the specified object id */
- PHP_FUNCTION(snmp2_walk)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, (SNMP_CMD_WALK | SNMP_NUMERIC_KEYS), SNMP_VERSION_2c);
- }
- /* }}} */
- /* {{{ Return all objects including their respective object id within the specified one */
- PHP_FUNCTION(snmp2_real_walk)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_WALK, SNMP_VERSION_2c);
- }
- /* }}} */
- /* {{{ Set the value of a SNMP object */
- PHP_FUNCTION(snmp2_set)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_SET, SNMP_VERSION_2c);
- }
- /* }}} */
- /* {{{ Fetch the value of a SNMP object */
- PHP_FUNCTION(snmp3_get)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_GET, SNMP_VERSION_3);
- }
- /* }}} */
- /* {{{ Fetch the value of a SNMP object */
- PHP_FUNCTION(snmp3_getnext)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_GETNEXT, SNMP_VERSION_3);
- }
- /* }}} */
- /* {{{ Fetch the value of a SNMP object */
- PHP_FUNCTION(snmp3_walk)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, (SNMP_CMD_WALK | SNMP_NUMERIC_KEYS), SNMP_VERSION_3);
- }
- /* }}} */
- /* {{{ Fetch the value of a SNMP object */
- PHP_FUNCTION(snmp3_real_walk)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_WALK, SNMP_VERSION_3);
- }
- /* }}} */
- /* {{{ Fetch the value of a SNMP object */
- PHP_FUNCTION(snmp3_set)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_SET, SNMP_VERSION_3);
- }
- /* }}} */
- /* {{{ Specify the method how the SNMP values will be returned */
- PHP_FUNCTION(snmp_set_valueretrieval)
- {
- zend_long method;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &method) == FAILURE) {
- RETURN_THROWS();
- }
- if (method >= 0 && method <= (SNMP_VALUE_LIBRARY|SNMP_VALUE_PLAIN|SNMP_VALUE_OBJECT)) {
- SNMP_G(valueretrieval) = method;
- RETURN_TRUE;
- } else {
- zend_argument_value_error(1, "must be a bitmask of SNMP_VALUE_LIBRARY, SNMP_VALUE_PLAIN, and SNMP_VALUE_OBJECT");
- RETURN_THROWS();
- }
- }
- /* }}} */
- /* {{{ Return the method how the SNMP values will be returned */
- PHP_FUNCTION(snmp_get_valueretrieval)
- {
- if (zend_parse_parameters_none() == FAILURE) {
- RETURN_THROWS();
- }
- RETURN_LONG(SNMP_G(valueretrieval));
- }
- /* }}} */
- /* {{{ Reads and parses a MIB file into the active MIB tree. */
- PHP_FUNCTION(snmp_read_mib)
- {
- char *filename;
- size_t filename_len;
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "p", &filename, &filename_len) == FAILURE) {
- RETURN_THROWS();
- }
- if (!read_mib(filename)) {
- char *error = strerror(errno);
- php_error_docref(NULL, E_WARNING, "Error while reading MIB file '%s': %s", filename, error);
- RETURN_FALSE;
- }
- RETURN_TRUE;
- }
- /* }}} */
- /* {{{ Creates a new SNMP session to specified host. */
- PHP_METHOD(SNMP, __construct)
- {
- php_snmp_object *snmp_object;
- zval *object = ZEND_THIS;
- zend_string *a1, *a2;
- zend_long timeout = SNMP_DEFAULT_TIMEOUT;
- zend_long retries = SNMP_DEFAULT_RETRIES;
- zend_long version = SNMP_DEFAULT_VERSION;
- snmp_object = Z_SNMP_P(object);
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "lSS|ll", &version, &a1, &a2, &timeout, &retries) == FAILURE) {
- RETURN_THROWS();
- }
- switch (version) {
- case SNMP_VERSION_1:
- case SNMP_VERSION_2c:
- case SNMP_VERSION_3:
- break;
- default:
- zend_argument_value_error(1, "must be a valid SNMP protocol version");
- RETURN_THROWS();
- }
- /* handle re-open of snmp session */
- if (snmp_object->session) {
- netsnmp_session_free(&(snmp_object->session));
- }
- if (!netsnmp_session_init(&(snmp_object->session), version, a1, a2, timeout, retries)) {
- return;
- }
- snmp_object->max_oids = 0;
- snmp_object->valueretrieval = SNMP_G(valueretrieval);
- snmp_object->enum_print = netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_PRINT_NUMERIC_ENUM);
- snmp_object->oid_output_format = netsnmp_ds_get_int(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_OID_OUTPUT_FORMAT);
- snmp_object->quick_print = netsnmp_ds_get_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_QUICK_PRINT);
- snmp_object->oid_increasing_check = true;
- snmp_object->exceptions_enabled = 0;
- }
- /* }}} */
- /* {{{ Close SNMP session */
- PHP_METHOD(SNMP, close)
- {
- php_snmp_object *snmp_object;
- zval *object = ZEND_THIS;
- snmp_object = Z_SNMP_P(object);
- if (zend_parse_parameters_none() == FAILURE) {
- RETURN_THROWS();
- }
- netsnmp_session_free(&(snmp_object->session));
- RETURN_TRUE;
- }
- /* }}} */
- /* {{{ Fetch a SNMP object returning scalar for single OID and array of oid->value pairs for multi OID request */
- PHP_METHOD(SNMP, get)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_GET, (-1));
- }
- /* }}} */
- /* {{{ Fetch a SNMP object returning scalar for single OID and array of oid->value pairs for multi OID request */
- PHP_METHOD(SNMP, getnext)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_GETNEXT, (-1));
- }
- /* }}} */
- /* {{{ Return all objects including their respective object id within the specified one as array of oid->value pairs */
- PHP_METHOD(SNMP, walk)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_WALK, (-1));
- }
- /* }}} */
- /* {{{ Set the value of a SNMP object */
- PHP_METHOD(SNMP, set)
- {
- php_snmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, SNMP_CMD_SET, (-1));
- }
- /* }}} */
- /* {{{ Set SNMPv3 security-related session parameters */
- PHP_METHOD(SNMP, setSecurity)
- {
- php_snmp_object *snmp_object;
- zval *object = ZEND_THIS;
- zend_string *a1 = NULL, *a2 = NULL, *a3 = NULL, *a4 = NULL, *a5 = NULL, *a6 = NULL, *a7 = NULL;
- snmp_object = Z_SNMP_P(object);
- if (zend_parse_parameters(ZEND_NUM_ARGS(), "S|SSSSSS", &a1, &a2, &a3, &a4,&a5, &a6, &a7) == FAILURE) {
- RETURN_THROWS();
- }
- if (!netsnmp_session_set_security(snmp_object->session, a1, a2, a3, a4, a5, a6, a7)) {
- /* Warning message sent already, just bail out */
- RETURN_FALSE;
- }
- RETURN_TRUE;
- }
- /* }}} */
- /* {{{ Get last error code number */
- PHP_METHOD(SNMP, getErrno)
- {
- php_snmp_object *snmp_object;
- zval *object = ZEND_THIS;
- snmp_object = Z_SNMP_P(object);
- if (zend_parse_parameters_none() == FAILURE) {
- RETURN_THROWS();
- }
- RETURN_LONG(snmp_object->snmp_errno);
- }
- /* }}} */
- /* {{{ Get last error message */
- PHP_METHOD(SNMP, getError)
- {
- php_snmp_object *snmp_object;
- zval *object = ZEND_THIS;
- snmp_object = Z_SNMP_P(object);
- if (zend_parse_parameters_none() == FAILURE) {
- RETURN_THROWS();
- }
- RETURN_STRING(snmp_object->snmp_errstr);
- }
- /* }}} */
- /* {{{ */
- void php_snmp_add_property(HashTable *h, const char *name, size_t name_length, php_snmp_read_t read_func, php_snmp_write_t write_func)
- {
- php_snmp_prop_handler p;
- zend_string *str;
- p.name = (char*) name;
- p.name_length = name_length;
- p.read_func = (read_func) ? read_func : NULL;
- p.write_func = (write_func) ? write_func : NULL;
- str = zend_string_init_interned(name, name_length, 1);
- zend_hash_add_mem(h, str, &p, sizeof(php_snmp_prop_handler));
- zend_string_release_ex(str, 1);
- }
- /* }}} */
- /* {{{ php_snmp_read_property(zval *object, zval *member, int type[, const zend_literal *key])
- Generic object property reader */
- zval *php_snmp_read_property(zend_object *object, zend_string *name, int type, void **cache_slot, zval *rv)
- {
- zval *retval;
- php_snmp_object *obj;
- php_snmp_prop_handler *hnd;
- int ret;
- obj = php_snmp_fetch_object(object);
- hnd = zend_hash_find_ptr(&php_snmp_properties, name);
- if (hnd && hnd->read_func) {
- ret = hnd->read_func(obj, rv);
- if (ret == SUCCESS) {
- retval = rv;
- } else {
- retval = &EG(uninitialized_zval);
- }
- } else {
- retval = zend_std_read_property(object, name, type, cache_slot, rv);
- }
- return retval;
- }
- /* }}} */
- /* {{{ Generic object property writer */
- zval *php_snmp_write_property(zend_object *object, zend_string *name, zval *value, void **cache_slot)
- {
- php_snmp_object *obj = php_snmp_fetch_object(object);
- php_snmp_prop_handler *hnd = zend_hash_find_ptr(&php_snmp_properties, name);
- if (hnd) {
- if (!hnd->write_func) {
- zend_throw_error(NULL, "Cannot write read-only property %s::$%s", ZSTR_VAL(object->ce->name), ZSTR_VAL(name));
- return &EG(error_zval);
- }
- zend_property_info *prop = zend_get_property_info(object->ce, name, /* silent */ true);
- if (prop && ZEND_TYPE_IS_SET(prop->type)) {
- zval tmp;
- ZVAL_COPY(&tmp, value);
- if (!zend_verify_property_type(prop, &tmp,
- ZEND_CALL_USES_STRICT_TYPES(EG(current_execute_data)))) {
- zval_ptr_dtor(&tmp);
- return &EG(error_zval);
- }
- hnd->write_func(obj, &tmp);
- zval_ptr_dtor(&tmp);
- } else {
- hnd->write_func(obj, value);
- }
- return value;
- }
- return zend_std_write_property(object, name, value, cache_slot);
- }
- /* }}} */
- /* {{{ php_snmp_has_property(zval *object, zval *member, int has_set_exists[, const zend_literal *key])
- Generic object property checker */
- static int php_snmp_has_property(zend_object *object, zend_string *name, int has_set_exists, void **cache_slot)
- {
- zval rv;
- php_snmp_prop_handler *hnd;
- int ret = 0;
- if ((hnd = zend_hash_find_ptr(&php_snmp_properties, name)) != NULL) {
- switch (has_set_exists) {
- case ZEND_PROPERTY_EXISTS:
- ret = 1;
- break;
- case ZEND_PROPERTY_ISSET: {
- zval *value = php_snmp_read_property(object, name, BP_VAR_IS, cache_slot, &rv);
- if (value != &EG(uninitialized_zval)) {
- ret = Z_TYPE_P(value) != IS_NULL? 1 : 0;
- zval_ptr_dtor(value);
- }
- break;
- }
- default: {
- zval *value = php_snmp_read_property(object, name, BP_VAR_IS, cache_slot, &rv);
- if (value != &EG(uninitialized_zval)) {
- convert_to_boolean(value);
- ret = Z_TYPE_P(value) == IS_TRUE? 1:0;
- }
- break;
- }
- }
- } else {
- ret = zend_std_has_property(object, name, has_set_exists, cache_slot);
- }
- return ret;
- }
- /* }}} */
- static HashTable *php_snmp_get_gc(zend_object *object, zval **gc_data, int *gc_data_count) /* {{{ */
- {
- *gc_data = NULL;
- *gc_data_count = 0;
- return zend_std_get_properties(object);
- }
- /* }}} */
- /* {{{ php_snmp_get_properties(zval *object)
- Returns all object properties. Injects SNMP properties into object on first call */
- static HashTable *php_snmp_get_properties(zend_object *object)
- {
- php_snmp_object *obj;
- php_snmp_prop_handler *hnd;
- HashTable *props;
- zval rv;
- zend_string *key;
- obj = php_snmp_fetch_object(object);
- props = zend_std_get_properties(object);
- ZEND_HASH_FOREACH_STR_KEY_PTR(&php_snmp_properties, key, hnd) {
- if (!hnd->read_func || hnd->read_func(obj, &rv) != SUCCESS) {
- ZVAL_NULL(&rv);
- }
- zend_hash_update(props, key, &rv);
- } ZEND_HASH_FOREACH_END();
- return obj->zo.properties;
- }
- /* }}} */
- static zval *php_snmp_get_property_ptr_ptr(zend_object *object, zend_string *name, int type, void **cache_slot)
- {
- php_snmp_prop_handler *hnd = zend_hash_find_ptr(&php_snmp_properties, name);
- if (hnd == NULL) {
- return zend_std_get_property_ptr_ptr(object, name, type, cache_slot);
- }
- return NULL;
- }
- /* {{{ */
- static int php_snmp_read_info(php_snmp_object *snmp_object, zval *retval)
- {
- zval val;
- array_init(retval);
- if (snmp_object->session == NULL) {
- return SUCCESS;
- }
- ZVAL_STRINGL(&val, snmp_object->session->peername, strlen(snmp_object->session->peername));
- add_assoc_zval(retval, "hostname", &val);
- ZVAL_LONG(&val, snmp_object->session->timeout);
- add_assoc_zval(retval, "timeout", &val);
- ZVAL_LONG(&val, snmp_object->session->retries);
- add_assoc_zval(retval, "retries", &val);
- return SUCCESS;
- }
- /* }}} */
- /* {{{ */
- static int php_snmp_read_max_oids(php_snmp_object *snmp_object, zval *retval)
- {
- if (snmp_object->max_oids > 0) {
- ZVAL_LONG(retval, snmp_object->max_oids);
- } else {
- ZVAL_NULL(retval);
- }
- return SUCCESS;
- }
- /* }}} */
- #define PHP_SNMP_BOOL_PROPERTY_READER_FUNCTION(name) \
- static int php_snmp_read_##name(php_snmp_object *snmp_object, zval *retval) \
- { \
- ZVAL_BOOL(retval, snmp_object->name); \
- return SUCCESS; \
- }
- PHP_SNMP_BOOL_PROPERTY_READER_FUNCTION(oid_increasing_check)
- PHP_SNMP_BOOL_PROPERTY_READER_FUNCTION(quick_print)
- PHP_SNMP_BOOL_PROPERTY_READER_FUNCTION(enum_print)
- #define PHP_SNMP_LONG_PROPERTY_READER_FUNCTION(name) \
- static int php_snmp_read_##name(php_snmp_object *snmp_object, zval *retval) \
- { \
- ZVAL_LONG(retval, snmp_object->name); \
- return SUCCESS; \
- }
- PHP_SNMP_LONG_PROPERTY_READER_FUNCTION(valueretrieval)
- PHP_SNMP_LONG_PROPERTY_READER_FUNCTION(oid_output_format)
- PHP_SNMP_LONG_PROPERTY_READER_FUNCTION(exceptions_enabled)
- /* {{{ */
- static int php_snmp_write_max_oids(php_snmp_object *snmp_object, zval *newval)
- {
- zend_long lval;
- if (Z_TYPE_P(newval) == IS_NULL) {
- snmp_object->max_oids = 0;
- return SUCCESS;
- }
- lval = zval_get_long(newval);
- if (lval <= 0) {
- zend_value_error("SNMP::$max_oids must be greater than 0 or null");
- return FAILURE;
- }
- snmp_object->max_oids = lval;
- return SUCCESS;
- }
- /* }}} */
- /* {{{ */
- static int php_snmp_write_valueretrieval(php_snmp_object *snmp_object, zval *newval)
- {
- zend_long lval = zval_get_long(newval);
- if (lval >= 0 && lval <= (SNMP_VALUE_LIBRARY|SNMP_VALUE_PLAIN|SNMP_VALUE_OBJECT)) {
- snmp_object->valueretrieval = lval;
- } else {
- zend_value_error("SNMP retrieval method must be a bitmask of SNMP_VALUE_LIBRARY, SNMP_VALUE_PLAIN, and SNMP_VALUE_OBJECT");
- return FAILURE;
- }
- return SUCCESS;
- }
- /* }}} */
- #define PHP_SNMP_BOOL_PROPERTY_WRITER_FUNCTION(name) \
- static int php_snmp_write_##name(php_snmp_object *snmp_object, zval *newval) \
- { \
- zval ztmp; \
- ZVAL_COPY(&ztmp, newval); \
- convert_to_boolean(&ztmp); \
- newval = &ztmp; \
- \
- snmp_object->name = Z_TYPE_P(newval) == IS_TRUE? 1 : 0; \
- \
- return SUCCESS; \
- }
- PHP_SNMP_BOOL_PROPERTY_WRITER_FUNCTION(quick_print)
- PHP_SNMP_BOOL_PROPERTY_WRITER_FUNCTION(enum_print)
- PHP_SNMP_BOOL_PROPERTY_WRITER_FUNCTION(oid_increasing_check)
- /* {{{ */
- static int php_snmp_write_oid_output_format(php_snmp_object *snmp_object, zval *newval)
- {
- zend_long lval = zval_get_long(newval);
- switch(lval) {
- case NETSNMP_OID_OUTPUT_SUFFIX:
- case NETSNMP_OID_OUTPUT_MODULE:
- case NETSNMP_OID_OUTPUT_FULL:
- case NETSNMP_OID_OUTPUT_NUMERIC:
- case NETSNMP_OID_OUTPUT_UCD:
- case NETSNMP_OID_OUTPUT_NONE:
- snmp_object->oid_output_format = lval;
- return SUCCESS;
- default:
- zend_value_error("SNMP output print format must be an SNMP_OID_OUTPUT_* constant");
- return FAILURE;
- }
- }
- /* }}} */
- /* {{{ */
- static int php_snmp_write_exceptions_enabled(php_snmp_object *snmp_object, zval *newval)
- {
- int ret = SUCCESS;
- snmp_object->exceptions_enabled = zval_get_long(newval);
- return ret;
- }
- /* }}} */
- static void free_php_snmp_properties(zval *el) /* {{{ */
- {
- pefree(Z_PTR_P(el), 1);
- }
- /* }}} */
- #define PHP_SNMP_PROPERTY_ENTRY_RECORD(name) \
- { "" #name "", sizeof("" #name "") - 1, php_snmp_read_##name, php_snmp_write_##name }
- #define PHP_SNMP_READONLY_PROPERTY_ENTRY_RECORD(name) \
- { "" #name "", sizeof("" #name "") - 1, php_snmp_read_##name, NULL }
- const php_snmp_prop_handler php_snmp_property_entries[] = {
- PHP_SNMP_READONLY_PROPERTY_ENTRY_RECORD(info),
- PHP_SNMP_PROPERTY_ENTRY_RECORD(max_oids),
- PHP_SNMP_PROPERTY_ENTRY_RECORD(valueretrieval),
- PHP_SNMP_PROPERTY_ENTRY_RECORD(quick_print),
- PHP_SNMP_PROPERTY_ENTRY_RECORD(enum_print),
- PHP_SNMP_PROPERTY_ENTRY_RECORD(oid_output_format),
- PHP_SNMP_PROPERTY_ENTRY_RECORD(oid_increasing_check),
- PHP_SNMP_PROPERTY_ENTRY_RECORD(exceptions_enabled),
- { NULL, 0, NULL, NULL}
- };
- /* }}} */
- /* {{{ PHP_MINIT_FUNCTION */
- PHP_MINIT_FUNCTION(snmp)
- {
- netsnmp_log_handler *logh;
- init_snmp("snmpapp");
- /* net-snmp corrupts the CTYPE locale during initialization. */
- zend_reset_lc_ctype_locale();
- #ifdef NETSNMP_DS_LIB_DONT_PERSIST_STATE
- /* Prevent update of the snmpapp.conf file */
- netsnmp_ds_set_boolean(NETSNMP_DS_LIBRARY_ID, NETSNMP_DS_LIB_DONT_PERSIST_STATE, 1);
- #endif
- /* Disable logging, use exit status'es and related variabled to detect errors */
- shutdown_snmp_logging();
- logh = netsnmp_register_loghandler(NETSNMP_LOGHANDLER_NONE, LOG_ERR);
- if (logh) {
- logh->pri_max = LOG_ERR;
- }
- memcpy(&php_snmp_object_handlers, &std_object_handlers, sizeof(zend_object_handlers));
- php_snmp_object_handlers.read_property = php_snmp_read_property;
- php_snmp_object_handlers.write_property = php_snmp_write_property;
- php_snmp_object_handlers.get_property_ptr_ptr = php_snmp_get_property_ptr_ptr;
- php_snmp_object_handlers.has_property = php_snmp_has_property;
- php_snmp_object_handlers.get_properties = php_snmp_get_properties;
- php_snmp_object_handlers.get_gc = php_snmp_get_gc;
- /* Register SNMP Class */
- php_snmp_ce = register_class_SNMP();
- php_snmp_ce->create_object = php_snmp_object_new;
- php_snmp_object_handlers.offset = XtOffsetOf(php_snmp_object, zo);
- php_snmp_object_handlers.clone_obj = NULL;
- php_snmp_object_handlers.free_obj = php_snmp_object_free_storage;
- /* Register SNMP Class properties */
- zend_hash_init(&php_snmp_properties, 0, NULL, free_php_snmp_properties, 1);
- PHP_SNMP_ADD_PROPERTIES(&php_snmp_properties, php_snmp_property_entries);
- REGISTER_LONG_CONSTANT("SNMP_OID_OUTPUT_SUFFIX", NETSNMP_OID_OUTPUT_SUFFIX, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_OID_OUTPUT_MODULE", NETSNMP_OID_OUTPUT_MODULE, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_OID_OUTPUT_FULL", NETSNMP_OID_OUTPUT_FULL, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_OID_OUTPUT_NUMERIC", NETSNMP_OID_OUTPUT_NUMERIC, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_OID_OUTPUT_UCD", NETSNMP_OID_OUTPUT_UCD, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_OID_OUTPUT_NONE", NETSNMP_OID_OUTPUT_NONE, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_VALUE_LIBRARY", SNMP_VALUE_LIBRARY, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_VALUE_PLAIN", SNMP_VALUE_PLAIN, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_VALUE_OBJECT", SNMP_VALUE_OBJECT, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_BIT_STR", ASN_BIT_STR, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_OCTET_STR", ASN_OCTET_STR, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_OPAQUE", ASN_OPAQUE, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_NULL", ASN_NULL, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_OBJECT_ID", ASN_OBJECT_ID, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_IPADDRESS", ASN_IPADDRESS, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_COUNTER", ASN_GAUGE, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_UNSIGNED", ASN_UNSIGNED, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_TIMETICKS", ASN_TIMETICKS, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_UINTEGER", ASN_UINTEGER, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_INTEGER", ASN_INTEGER, CONST_CS | CONST_PERSISTENT);
- REGISTER_LONG_CONSTANT("SNMP_COUNTER64", ASN_COUNTER64, CONST_CS | CONST_PERSISTENT);
- REGISTER_SNMP_CLASS_CONST_LONG("VERSION_1", SNMP_VERSION_1);
- REGISTER_SNMP_CLASS_CONST_LONG("VERSION_2c", SNMP_VERSION_2c);
- REGISTER_SNMP_CLASS_CONST_LONG("VERSION_2C", SNMP_VERSION_2c);
- REGISTER_SNMP_CLASS_CONST_LONG("VERSION_3", SNMP_VERSION_3);
- REGISTER_SNMP_CLASS_CONST_LONG("ERRNO_NOERROR", PHP_SNMP_ERRNO_NOERROR);
- REGISTER_SNMP_CLASS_CONST_LONG("ERRNO_ANY", PHP_SNMP_ERRNO_ANY);
- REGISTER_SNMP_CLASS_CONST_LONG("ERRNO_GENERIC", PHP_SNMP_ERRNO_GENERIC);
- REGISTER_SNMP_CLASS_CONST_LONG("ERRNO_TIMEOUT", PHP_SNMP_ERRNO_TIMEOUT);
- REGISTER_SNMP_CLASS_CONST_LONG("ERRNO_ERROR_IN_REPLY", PHP_SNMP_ERRNO_ERROR_IN_REPLY);
- REGISTER_SNMP_CLASS_CONST_LONG("ERRNO_OID_NOT_INCREASING", PHP_SNMP_ERRNO_OID_NOT_INCREASING);
- REGISTER_SNMP_CLASS_CONST_LONG("ERRNO_OID_PARSING_ERROR", PHP_SNMP_ERRNO_OID_PARSING_ERROR);
- REGISTER_SNMP_CLASS_CONST_LONG("ERRNO_MULTIPLE_SET_QUERIES", PHP_SNMP_ERRNO_MULTIPLE_SET_QUERIES);
- /* Register SNMPException class */
- php_snmp_exception_ce = register_class_SNMPException(spl_ce_RuntimeException);
- return SUCCESS;
- }
- /* }}} */
- /* {{{ PHP_MSHUTDOWN_FUNCTION */
- PHP_MSHUTDOWN_FUNCTION(snmp)
- {
- snmp_shutdown("snmpapp");
- zend_hash_destroy(&php_snmp_properties);
- return SUCCESS;
- }
- /* }}} */
- /* {{{ PHP_MINFO_FUNCTION */
- PHP_MINFO_FUNCTION(snmp)
- {
- php_info_print_table_start();
- php_info_print_table_row(2, "NET-SNMP Support", "enabled");
- php_info_print_table_row(2, "NET-SNMP Version", netsnmp_get_version());
- php_info_print_table_end();
- }
- /* }}} */
- /* {{{ snmp_module_deps[] */
- static const zend_module_dep snmp_module_deps[] = {
- ZEND_MOD_REQUIRED("spl")
- ZEND_MOD_END
- };
- /* }}} */
- /* {{{ snmp_module_entry */
- zend_module_entry snmp_module_entry = {
- STANDARD_MODULE_HEADER_EX,
- NULL,
- snmp_module_deps,
- "snmp",
- ext_functions,
- PHP_MINIT(snmp),
- PHP_MSHUTDOWN(snmp),
- NULL,
- NULL,
- PHP_MINFO(snmp),
- PHP_SNMP_VERSION,
- PHP_MODULE_GLOBALS(snmp),
- PHP_GINIT(snmp),
- NULL,
- NULL,
- STANDARD_MODULE_PROPERTIES_EX
- };
- /* }}} */
- #endif
|