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|
/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| 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: |
| http://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: Sara Golemon <pollita@php.net> |
+----------------------------------------------------------------------+
*/
#include "php.h"
#include "php_network.h"
#if HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#if HAVE_NET_IF_H
# include <net/if.h>
#endif
#if HAVE_GETIFADDRS
# include <ifaddrs.h>
#endif
#ifdef PHP_WIN32
# ifndef __clang__
# include <intrin.h>
# endif
# include <winsock2.h>
# include <ws2ipdef.h>
# include <Ws2tcpip.h>
# include <iphlpapi.h>
#else
# include <netdb.h>
#endif
PHPAPI zend_string* php_inet_ntop(const struct sockaddr *addr) {
socklen_t addrlen = sizeof(struct sockaddr_in);
if (!addr) { return NULL; }
/* Prefer inet_ntop() as it's more task-specific and doesn't have to be demangled */
#if HAVE_INET_NTOP
switch (addr->sa_family) {
#ifdef AF_INET6
case AF_INET6: {
zend_string *ret = zend_string_alloc(INET6_ADDRSTRLEN, 0);
if (inet_ntop(AF_INET6, &(((struct sockaddr_in6*)addr)->sin6_addr), ZSTR_VAL(ret), INET6_ADDRSTRLEN)) {
ZSTR_LEN(ret) = strlen(ZSTR_VAL(ret));
return ret;
}
zend_string_efree(ret);
break;
}
#endif
case AF_INET: {
zend_string *ret = zend_string_alloc(INET_ADDRSTRLEN, 0);
if (inet_ntop(AF_INET, &(((struct sockaddr_in*)addr)->sin_addr), ZSTR_VAL(ret), INET_ADDRSTRLEN)) {
ZSTR_LEN(ret) = strlen(ZSTR_VAL(ret));
return ret;
}
zend_string_efree(ret);
break;
}
}
#endif
/* Fallback on getnameinfo() */
switch (addr->sa_family) {
#ifdef AF_INET6
case AF_INET6:
addrlen = sizeof(struct sockaddr_in6);
/* fallthrough */
#endif
case AF_INET: {
zend_string *ret = zend_string_alloc(NI_MAXHOST, 0);
if (getnameinfo(addr, addrlen, ZSTR_VAL(ret), NI_MAXHOST, NULL, 0, NI_NUMERICHOST) == SUCCESS) {
/* Also demangle numeric host with %name suffix */
char *colon = strchr(ZSTR_VAL(ret), '%');
if (colon) { *colon = 0; }
ZSTR_LEN(ret) = strlen(ZSTR_VAL(ret));
return ret;
}
zend_string_efree(ret);
break;
}
}
return NULL;
}
#if defined(PHP_WIN32) || HAVE_GETIFADDRS
static void iface_append_unicast(zval *unicast, zend_long flags,
struct sockaddr *addr, struct sockaddr *netmask,
struct sockaddr *broadcast, struct sockaddr *ptp) {
zend_string *host;
zval u;
array_init(&u);
add_assoc_long(&u, "flags", flags);
if (addr) {
add_assoc_long(&u, "family", addr->sa_family);
if ((host = php_inet_ntop(addr))) {
add_assoc_str(&u, "address", host);
}
}
if ((host = php_inet_ntop(netmask))) {
add_assoc_str(&u, "netmask", host);
}
if ((host = php_inet_ntop(broadcast))) {
add_assoc_str(&u, "broadcast", host);
}
if ((host = php_inet_ntop(ptp))) {
add_assoc_str(&u, "ptp", host);
}
add_next_index_zval(unicast, &u);
}
#endif
/* {{{ proto array|false net_get_interfaces()
Returns an array in the form:
array(
'ifacename' => array(
'description' => 'Awesome interface', // Win32 only
'mac' => '00:11:22:33:44:55', // Win32 only
'mtu' => 1234, // Win32 only
'unicast' => array(
0 => array(
'family' => 2, // e.g. AF_INET, AF_INET6, AF_PACKET
'address' => '127.0.0.1',
'netmnask' => '255.0.0.0',
'broadcast' => '127.255.255.255', // POSIX only
'ptp' => '127.0.0.2', // POSIX only
), // etc...
),
), // etc...
)
*/
PHP_FUNCTION(net_get_interfaces) {
#ifdef PHP_WIN32
# define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x))
# define FREE(x) HeapFree(GetProcessHeap(), 0, (x))
ULONG family = AF_UNSPEC;
ULONG flags = GAA_FLAG_INCLUDE_PREFIX;
PIP_ADAPTER_ADDRESSES pAddresses = NULL, p;
PIP_ADAPTER_UNICAST_ADDRESS u = NULL;
ULONG outBufLen = 0;
DWORD dwRetVal = 0;
ZEND_PARSE_PARAMETERS_NONE();
// Make an initial call to GetAdaptersAddresses to get the
// size needed into the outBufLen variable
if (GetAdaptersAddresses(family, flags, NULL, pAddresses, &outBufLen) == ERROR_BUFFER_OVERFLOW) {
FREE(pAddresses);
pAddresses = (IP_ADAPTER_ADDRESSES *) MALLOC(outBufLen);
}
if (pAddresses == NULL) {
zend_error(E_WARNING, "Memory allocation failed for IP_ADAPTER_ADDRESSES struct");
RETURN_FALSE;
}
dwRetVal = GetAdaptersAddresses(family, flags, NULL, pAddresses, &outBufLen);
if (NO_ERROR != dwRetVal) {
char *buf = php_win32_error_to_msg(GetLastError());
zend_error(E_WARNING, "GetAdaptersAddresses failed: %s", buf);
php_win32_error_msg_free(buf);
FREE(pAddresses);
RETURN_FALSE;
}
array_init(return_value);
for (p = pAddresses; p; p = p->Next) {
zval iface, unicast;
if ((IF_TYPE_ETHERNET_CSMACD != p->IfType) && (IF_TYPE_SOFTWARE_LOOPBACK != p->IfType)) {
continue;
}
array_init(&iface);
if (p->Description) {
char tmp[256];
memset(tmp, 0, sizeof(tmp));
wcstombs(tmp, p->Description, sizeof(tmp));
add_assoc_string(&iface, "description", tmp);
}
if (p->PhysicalAddressLength > 0) {
zend_string *mac = zend_string_alloc(p->PhysicalAddressLength * 3, 0);
char *s = ZSTR_VAL(mac);
ULONG i;
for (i = 0; i < p->PhysicalAddressLength; ++i) {
s += snprintf(s, 4, "%02X:", p->PhysicalAddress[i]);
}
*(--s) = 0;
ZSTR_LEN(mac) = s - ZSTR_VAL(mac);
add_assoc_str(&iface, "mac", mac);
}
/* Flags could be placed at this level,
* but we repeat it in the unicast subarray
* for consistency with the POSIX version.
*/
add_assoc_long(&iface, "mtu", p->Mtu);
array_init(&unicast);
for (u = p->FirstUnicastAddress; u; u = u->Next) {
switch (u->Address.lpSockaddr->sa_family) {
case AF_INET: {
ULONG mask;
struct sockaddr_in sin_mask;
ConvertLengthToIpv4Mask(u->OnLinkPrefixLength, &mask);
sin_mask.sin_family = AF_INET;
sin_mask.sin_addr.s_addr = mask;
iface_append_unicast(&unicast, p->Flags,
(struct sockaddr*)u->Address.lpSockaddr,
(struct sockaddr*)&sin_mask, NULL, NULL);
break;
}
case AF_INET6: {
ULONG i, j;
struct sockaddr_in6 sin6_mask;
memset(&sin6_mask, 0, sizeof(sin6_mask));
sin6_mask.sin6_family = AF_INET6;
for (i = u->OnLinkPrefixLength, j = 0; i > 0; i -= 8, ++j) {
sin6_mask.sin6_addr.s6_addr[j] = (i >= 8) ? 0xff : ((ULONG)((0xffU << (8 - i)) & 0xffU));
}
iface_append_unicast(&unicast, p->Flags,
(struct sockaddr*)u->Address.lpSockaddr,
(struct sockaddr*)&sin6_mask, NULL, NULL);
break;
}
}
}
add_assoc_zval(&iface, "unicast", &unicast);
add_assoc_bool(&iface, "up", (p->OperStatus == IfOperStatusUp));
add_assoc_zval(return_value, p->AdapterName, &iface);
}
FREE(pAddresses);
#undef MALLOC
#undef FREE
#elif HAVE_GETIFADDRS /* !PHP_WIN32 */
struct ifaddrs *addrs = NULL, *p;
ZEND_PARSE_PARAMETERS_NONE();
if (getifaddrs(&addrs)) {
php_error(E_WARNING, "getifaddrs() failed %d: %s", errno, strerror(errno));
RETURN_FALSE;
}
array_init(return_value);
for (p = addrs; p; p = p->ifa_next) {
zval *iface = zend_hash_str_find(Z_ARR_P(return_value), p->ifa_name, strlen(p->ifa_name));
zval *unicast, *status;
if (!iface) {
zval newif;
array_init(&newif);
iface = zend_hash_str_add(Z_ARR_P(return_value), p->ifa_name, strlen(p->ifa_name), &newif);
}
unicast = zend_hash_str_find(Z_ARR_P(iface), "unicast", sizeof("unicast") - 1);
if (!unicast) {
zval newuni;
array_init(&newuni);
unicast = zend_hash_str_add(Z_ARR_P(iface), "unicast", sizeof("unicast") - 1, &newuni);
}
iface_append_unicast(unicast,
p->ifa_flags,
p->ifa_addr, p->ifa_netmask,
(p->ifa_flags & IFF_BROADCAST) ? p->ifa_broadaddr : NULL,
(p->ifa_flags & IFF_POINTOPOINT) ? p->ifa_dstaddr : NULL);
status = zend_hash_str_find(Z_ARR_P(iface), "up", sizeof("up") - 1);
if (!status) {
add_assoc_bool(iface, "up", ((p->ifa_flags & IFF_UP) != 0));
}
}
freeifaddrs(addrs);
#else
/* Should never happen as we never register the function */
php_error(E_WARNING, "No support for net_get_interfaces");
RETURN_FALSE;
#endif
}
/* }}} */
|
