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Socket ether linux step2 #17926

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f106d34
ext/sockets: follow-up on AF_PACKET support.
devnexen Feb 25, 2025
f13b7cd
address most of remarks
devnexen Apr 14, 2025
97ccc97
fix unterminated buffers.
devnexen Apr 21, 2025
86eace0
strengthening the frame buffer handling
devnexen Apr 26, 2025
62c3e44
fix tests
devnexen Apr 26, 2025
997a6ed
add more tests
devnexen Apr 28, 2025
df2f12c
address most of the remarks
devnexen May 19, 2025
6cc916e
fix buffer lengths and a test expectation
devnexen May 19, 2025
4a4441f
adding more tests
devnexen May 27, 2025
e3b2eb7
test
devnexen May 27, 2025
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2 changes: 1 addition & 1 deletion ext/sockets/config.m4
View file
Original file line number Diff line number Diff line change
@@ -5,7 +5,7 @@ PHP_ARG_ENABLE([sockets],

if test "$PHP_SOCKETS" != "no"; then
AC_CHECK_FUNCS([hstrerror if_nametoindex if_indextoname sockatmark])
AC_CHECK_HEADERS([sys/sockio.h linux/filter.h linux/if_packet.h linux/if_ether.h linux/udp.h])
AC_CHECK_HEADERS([sys/sockio.h linux/filter.h linux/if_packet.h linux/if_ether.h netinet/ether.h])
AC_DEFINE([HAVE_SOCKETS], [1],
[Define to 1 if the PHP extension 'sockets' is available.])

9 changes: 9 additions & 0 deletions ext/sockets/php_sockets.h
View file
Original file line number Diff line number Diff line change
@@ -77,6 +77,15 @@ typedef struct {

extern PHP_SOCKETS_API zend_class_entry *socket_ce;

#ifdef AF_PACKET
extern PHP_SOCKETS_API zend_class_entry *packet_ce;
extern PHP_SOCKETS_API zend_class_entry *ethinfopacket_ce;
extern PHP_SOCKETS_API zend_class_entry *tcppacket_ce;
extern PHP_SOCKETS_API zend_class_entry *udppacket_ce;
extern PHP_SOCKETS_API zend_class_entry *ipv4packet_ce;
extern PHP_SOCKETS_API zend_class_entry *ipv6packet_ce;
#endif

static inline php_socket *socket_from_obj(zend_object *obj) {
return (php_socket *)((char *)(obj) - XtOffsetOf(php_socket, std));
}
421 changes: 400 additions & 21 deletions ext/sockets/sockets.c
View file

Large diffs are not rendered by default.

52 changes: 52 additions & 0 deletions ext/sockets/sockets.stub.php
View file
Original file line number Diff line number Diff line change
@@ -2,6 +2,7 @@

/** @generate-class-entries */

namespace {
/**
* @var int
* @cvalue AF_UNIX
@@ -2020,6 +2021,11 @@
* @cvalue ETH_P_ALL
*/
const ETH_P_ALL = UNKNOWN;
/**
* @var int
* @cvalue ETH_FRAME_LEN
*/
const ETH_FRAME_LEN = UNKNOWN;
#endif

#ifdef UDP_SEGMENT
@@ -2190,3 +2196,49 @@ function socket_wsaprotocol_info_import(string $info_id): Socket|false {}

function socket_wsaprotocol_info_release(string $info_id): bool {}
#endif
}

namespace Socket {
#ifdef AF_PACKET
class Packet
{
public int $headerSize;
public ?string $rawPacket;
}

final class EthernetPacket extends Packet
{
public \Socket $socket;
public int $ethProtocol;
public string $srcMac;
public string $dstMac;
public ?Packet $payload;
}

final class TcpPacket extends Packet
{
public int $srcPort;
public int $dstPort;
}

final class UdpPacket extends Packet
{
public int $srcPort;
public int $dstPort;
}

final class Ipv4Packet extends Packet
{
public string $srcAddr;
public string $dstAddr;
public ?Packet $payload;
}

final class Ipv6Packet extends Packet
{
public string $srcAddr;
public string $dstAddr;
public ?Packet $payload;
}
#endif
}
183 changes: 182 additions & 1 deletion ext/sockets/sockets_arginfo.h
View file

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

347 changes: 346 additions & 1 deletion ext/sockets/tests/socket_afpacket.phpt
View file
Original file line number Diff line number Diff line change
@@ -15,7 +15,7 @@ if (!function_exists("posix_getuid") || posix_getuid() != 0) {
?>
--FILE--
<?php
$s_c = socket_create(AF_PACKET, SOCK_RAW, ETH_P_IP);
$s_c = socket_create(AF_PACKET, SOCK_RAW, ETH_P_ALL);
$s_bind = socket_bind($s_c, 'lo');
var_dump($s_bind);

@@ -26,6 +26,205 @@ if (!function_exists("posix_getuid") || posix_getuid() != 0) {
var_dump($iindex);

socket_getpeername($s_c, $istr2, $iindex2);

$s_s = socket_create(AF_PACKET, SOCK_RAW, ETH_P_LOOP);
$v_bind = socket_bind($s_s, 'lo');

$buf = pack("H12H12n", "ffffffffffff", "000000000000", ETH_P_LOOP);
$buf .= str_repeat("A", 46);

var_dump(socket_sendto($s_s, $buf, strlen($buf), 0, "lo", 1));
var_dump(socket_recvfrom($s_c, $rsp, strlen($buf), 0, $addr));

var_dump($addr);
var_dump($rsp);

socket_close($s_c);
// purposely unsupported ethernet protocol (ARP)
$s_c = socket_create(AF_PACKET, SOCK_RAW, 0x0806);
$s_bind = socket_bind($s_c, 'lo');
$buf = pack("H12H12n", "ffffffffffff", "000000000000", 0x0806);
$buf .= str_repeat("A", 46);

var_dump(socket_sendto($s_s, $buf, strlen($buf), 0, "lo", 1));

try {
socket_recvfrom($s_c, $rsp2, strlen($buf), 0, $addr2);
} catch (\ValueError $e) {
echo $e->getMessage(), PHP_EOL;
}

socket_close($s_c);
socket_close($s_s);

$s_c = socket_create(AF_PACKET, SOCK_RAW, ETH_P_ALL);
$s_bind = socket_bind($s_c, 'lo');

$s_s = socket_create(AF_PACKET, SOCK_RAW, ETH_P_IP);
$v_bind = socket_bind($s_s, 'lo');

$ip = hex2bin(
"4500" .
"0028" .
"0000" .
"4000" .
"4006" .
"0000" .
"7f000001" .
"7f000001"
);
$p = str_repeat("A", 20);

$buf = pack("H12H12n", "ffffffffffff", "000000000000", ETH_P_IP);
$buf .= $ip . $p;

$min_frame_size = 60;
$buf .= str_repeat("\x00", max(0, $min_frame_size - strlen($buf)));

var_dump(socket_sendto($s_s, $buf, strlen($buf), 0, "lo", 1));
var_dump(socket_recvfrom($s_c, $rsp, strlen($buf), 0, $addr));

var_dump($addr);
var_dump($rsp);

socket_close($s_s);
socket_close($s_c);

$s_c = socket_create(AF_PACKET, SOCK_RAW, ETH_P_IPV6);
$s_bind = socket_bind($s_c, 'lo');
$s_s = socket_create(AF_PACKET, SOCK_RAW, ETH_P_IPV6);
$v_bind = socket_bind($s_s, 'lo');

$ethhdr = pack("H12H12n", "ffffffffffff", "000000000000", ETH_P_IPV6);

$ipv6_first_4 = hex2bin("60000000");

$ipv6_payload_len = hex2bin("0014");

$ipv6_nexthdr = chr(6);

$ipv6_hop_limit = chr(64);

$src_ip = hex2bin("00000000000000000000000000000001");

$dst_ip = hex2bin("00000000000000000000000000000001");

$tcp_hdr = pack("nnNNCCnn",
12345,
80,
0,
0,
(5 << 4),
0x02,
65535,
0
);

$buf = $ethhdr
. $ipv6_first_4
. $ipv6_payload_len
. $ipv6_nexthdr
. $ipv6_hop_limit
. $src_ip
. $dst_ip
. $tcp_hdr;

$buf .= str_repeat("\x00", max(0, 60 - strlen($buf)));

var_dump(socket_sendto($s_s, $buf, strlen($buf), 0, "lo", 1));
var_dump(socket_recvfrom($s_c, $rsp, strlen($buf), 0, $addr));

var_dump($addr);
var_dump($rsp);

$first_4_bytes = hex2bin("60000000");

$payload_len = hex2bin("0014");

$nexthdr = hex2bin("43"); // Extended proto

$hop_limit = hex2bin("40");

$src_ip = hex2bin("00000000000000000000000000000001");

$dst_ip = hex2bin("00000000000000000000000000000001");

$tcp_payload = str_repeat("A", 20);

$ethhdr = pack("H12H12n", "ffffffffffff", "000000000000", ETH_P_IPV6);

$buf = $ethhdr . $first_4_bytes . $payload_len . $nexthdr . $hop_limit . $src_ip . $dst_ip . $tcp_payload;

$buf .= str_repeat("\x00", max(0, 60 - strlen($buf)));

var_dump(socket_sendto($s_s, $buf, strlen($buf), 0, "lo", 1));

try {
socket_recvfrom($s_c, $rsp, strlen($buf), 0, $addr);
} catch (\ValueError $e) {
echo $e->getMessage(), PHP_EOL;
}

socket_close($s_s);
socket_close($s_c);

$s_c = socket_create(AF_PACKET, SOCK_RAW, ETH_P_IP);
$s_bind = socket_bind($s_c, 'lo');

$s_s = socket_create(AF_PACKET, SOCK_RAW, ETH_P_IP);
$v_bind = socket_bind($s_s, 'lo');

$ip = hex2bin(
"4500" .
str_repeat("0028", 16) .
"0000" .
"4000" .
"4006" .
"0000" .
"7f000001" .
"7f000001"
);
$p = str_repeat("A", 20);

$buf = pack("H12H12n", "ffffffffffff", "000000000000", ETH_P_IP);
$buf .= $ip . $p;

$min_frame_size = 60;
$buf .= str_repeat("\x00", max(0, $min_frame_size - strlen($buf)));

var_dump(socket_sendto($s_s, $buf, strlen($buf), 0, "lo", 1));

try {
socket_recvfrom($s_c, $rsp, strlen($buf), 0, $addr);
} catch (\ValueError $e) {
echo $e->getMessage(), PHP_EOL;
}

$ip = hex2bin(
"9999" .
"0028" .
"0000" .
"4000" .
"4006" .
"0000" .
"FFFFFeFF" .
"7f000001"
);
$p = str_repeat("Bb", 80);

$buf = pack("H12H12n", "ffffffffffffh", "aaaaaAAAAAAA", ETH_P_IP);
$buf .= $ip . $p;

$min_frame_size = 60;
$buf .= str_repeat("\x00", max(0, $min_frame_size - strlen($buf)));

var_dump(socket_sendto($s_s, $buf, strlen($buf), 0, "lo", 1));
var_dump(socket_recvfrom($s_c, $rsp, strlen($buf), 0, $addr));

var_dump($addr);
var_dump($rsp);

socket_close($s_s);
socket_close($s_c);
?>
--EXPECTF--
@@ -35,3 +234,149 @@ string(2) "lo"
int(%i)

Warning: socket_getpeername(): unable to retrieve peer name [95]: %sot supported in %s on line %d
int(60)
int(60)
string(2) "lo"
object(Socket\EthernetPacket)#3 (%d) {
["headerSize"]=>
int(%d)
["rawPacket"]=>
string(%d) "%r(.|\n)*?"%r
["socket"]=>
object(Socket)#1 (0) {
}
["ethProtocol"]=>
int(%i)
["srcMac"]=>
string(%d) "%s:%s:%s:%s:%s:%s"
["dstMac"]=>
string(%d) "%s:%s:%s:%s:%s:%s"
["payload"]=>
%a
}
int(60)
unsupported ethernet protocol
int(60)
int(%d)
string(2) "lo"
object(Socket\EthernetPacket)#2 (7) {
["headerSize"]=>
int(14)
["rawPacket"]=>
string(%d) "%r(.|\n)*?"%r
["socket"]=>
object(Socket)#%d (0) {
}
["ethProtocol"]=>
int(2048)
["srcMac"]=>
string(%d) "%s:%s:%s:%s:%s:%s"
["dstMac"]=>
string(%d) "%s:%s:%s:%s:%s:%s"
["payload"]=>
object(Socket\Ipv4Packet)#%d (5) {
["headerSize"]=>
int(%d)
["rawPacket"]=>
string(%d) "%r(.|\n)*?"%r
["srcAddr"]=>
string(%d) "%d.%d.%d.%d"
["dstAddr"]=>
string(%d) "%d.%d.%d.%d"
["payload"]=>
object(Socket\%sPacket)#%d (4) {
["headerSize"]=>
int(%d)
["rawPacket"]=>
string(%d) "%r(.|\n)*?"%r
["srcPort"]=>
int(%d)
["dstPort"]=>
int(%d)
}
}
}
int(%d)
int(%d)
string(2) "lo"
object(Socket\EthernetPacket)#%d (7) {
["headerSize"]=>
int(14)
["rawPacket"]=>
string(%d) "%r(.|\n)*?"%r
["socket"]=>
object(Socket)#3 (0) {
}
["ethProtocol"]=>
int(%d)
["srcMac"]=>
string(%d) "%s:%s:%s:%s:%s:%s"
["dstMac"]=>
string(%d) "%s:%s:%s:%s:%s:%s"
["payload"]=>
object(Socket\Ipv6Packet)#%d (5) {
["headerSize"]=>
int(%d)
["rawPacket"]=>
string(%d) "%A"
["srcAddr"]=>
string(%d) "%s"
["dstAddr"]=>
string(%d) "%s"
["payload"]=>
object(Socket\TcpPacket)#%d (4) {
["headerSize"]=>
int(%d)
["rawPacket"]=>
string(%d) "%r(.|\n)*?"%r
["srcPort"]=>
int(%d)
["dstPort"]=>
int(%d)
}
}
}
int(%d)
unsupported ipv6 header protocol
int(%d)
unsupported ip header protocol
int(%d)
int(%d)
string(%d) "%s"
object(Socket\EthernetPacket)#%d (7) {
["headerSize"]=>
int(%d)
["rawPacket"]=>
string(%d) "%r(.|\n)*?"%r
["socket"]=>
object(Socket)#%d (0) {
}
["ethProtocol"]=>
int(2048)
["srcMac"]=>
string(17) "aa:aa:aa:aa:aa:aa"
["dstMac"]=>
string(17) "ff:ff:ff:ff:ff:ff"
["payload"]=>
object(Socket\Ipv4Packet)#%d (5) {
["headerSize"]=>
int(40)
["rawPacket"]=>
string(%d) "%s"
["srcAddr"]=>
string(15) "%s.%s.%s.%s"
["dstAddr"]=>
string(9) "%s.%s.%s.%s"
["payload"]=>
object(Socket\TcpPacket)#%d (4) {
["headerSize"]=>
int(%d)
["rawPacket"]=>
string(%d) "%r(.|\n)*?"%r
["srcPort"]=>
int(%d)
["dstPort"]=>
int(%d)
}
}
}
65 changes: 65 additions & 0 deletions ext/sockets/tests/socket_afpacket_error.phpt
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,65 @@
--TEST--
AF_PACKET sockets handling errors
--EXTENSIONS--
sockets
posix
--SKIPIF--
<?php

if (!defined("AF_PACKET")) {
die('SKIP AF_PACKET not supported on this platform.');
}
if (!function_exists("posix_getuid") || posix_getuid() != 0) {
die('SKIP AF_PACKET requires root permissions.');
}
?>
--FILE--
<?php
$s_c = socket_create(AF_PACKET, SOCK_RAW, ETH_P_ALL);
$s_bind = socket_bind($s_c, 'lo');

$s_s = socket_create(AF_PACKET, SOCK_RAW, ETH_P_ALL);
$v_bind = socket_bind($s_s, 'lo');

$payload = random_bytes(1024);
$payload .= str_repeat("A", 46);

$buf = pack("H12H12n", "ffffffffffff", "000000000000", 0x0806);
$buf .= $payload;

var_dump(socket_sendto($s_s, $buf, strlen($buf), 0, "lo", 1));

try {
socket_recvfrom($s_c, $rsp, strlen($buf), 0, $addr);
} catch (\ValueError $e) {
echo $e->getMessage(), PHP_EOL;
}

socket_close($s_s);
socket_close($s_c);

$s_c = socket_create(AF_PACKET, SOCK_RAW, ETH_P_ALL);
$s_bind = socket_bind($s_c, 'lo');

$s_s = socket_create(AF_PACKET, SOCK_RAW, ETH_P_ALL);
$v_bind = socket_bind($s_s, 'lo');

$buf = pack("H12H12n", "ffffffffffff", "000000000000", ETH_P_IP);
$buf .= str_repeat("A", 46);

var_dump(socket_sendto($s_s, $buf, strlen($buf), 0, "lo", 1));

try {
socket_recvfrom($s_c, $rsp, strlen($buf), 0, $addr);
} catch (\ValueError $e) {
echo $e->getMessage(), PHP_EOL;
}

socket_close($s_s);
socket_close($s_c);
?>
--EXPECTF--
int(1084)
unsupported %s protocol
int(60)
invalid transport header length