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-rw-r--r--Doc/library/socket.rst36
-rw-r--r--Misc/NEWS.d/next/Core and Builtins/2022-07-30-14-10-27.gh-issue-95389.nSGEkG.rst3
-rw-r--r--Modules/socketmodule.c23
-rwxr-xr-xconfigure2
-rw-r--r--configure.ac2
-rw-r--r--pyconfig.h.in3
6 files changed, 65 insertions, 4 deletions
diff --git a/Doc/library/socket.rst b/Doc/library/socket.rst
index 3f6cb48..c946407 100644
--- a/Doc/library/socket.rst
+++ b/Doc/library/socket.rst
@@ -189,8 +189,11 @@ created. Socket addresses are represented as follows:
``(ifname, proto[, pkttype[, hatype[, addr]]])`` where:
- *ifname* - String specifying the device name.
- - *proto* - An in network-byte-order integer specifying the Ethernet
- protocol number.
+ - *proto* - The Ethernet protocol number.
+ May be :data:`ETH_P_ALL` to capture all protocols,
+ one of the :ref:`ETHERTYPE_* constants <socket-ethernet-types>`
+ or any other Ethernet protocol number.
+ Value must be in network-byte-order.
- *pkttype* - Optional integer specifying the packet type:
- ``PACKET_HOST`` (the default) - Packet addressed to the local host.
@@ -508,6 +511,19 @@ Constants
.. availability:: Linux >= 2.2.
+.. data:: ETH_P_ALL
+
+ :data:`!ETH_P_ALL` can be used in the :class:`~socket.socket`
+ constructor as *proto* for the :const:`AF_PACKET` family in order to
+ capture every packet, regardless of protocol.
+
+ For more information, see the :manpage:`packet(7)` manpage.
+
+ .. availability:: Linux.
+
+ .. versionadded:: 3.12
+
+
.. data:: AF_RDS
PF_RDS
SOL_RDS
@@ -638,6 +654,22 @@ Constants
.. versionadded:: 3.12
+.. _socket-ethernet-types:
+
+.. data:: ETHERTYPE_ARP
+ ETHERTYPE_IP
+ ETHERTYPE_IPV6
+ ETHERTYPE_VLAN
+
+ `IEEE 802.3 protocol number
+ <https://www.iana.org/assignments/ieee-802-numbers/ieee-802-numbers.txt>`_.
+ constants.
+
+ .. availability:: Linux, FreeBSD, macOS.
+
+ .. versionadded:: 3.12
+
+
Functions
^^^^^^^^^
diff --git a/Misc/NEWS.d/next/Core and Builtins/2022-07-30-14-10-27.gh-issue-95389.nSGEkG.rst b/Misc/NEWS.d/next/Core and Builtins/2022-07-30-14-10-27.gh-issue-95389.nSGEkG.rst
new file mode 100644
index 0000000..d31f00d
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2022-07-30-14-10-27.gh-issue-95389.nSGEkG.rst
@@ -0,0 +1,3 @@
+Expose :data:`~socket.ETH_P_ALL` and some of the
+:ref:`ETHERTYPE_* constants <socket-ethernet-types>` in :mod:`socket`.
+Patch by Noam Cohen.
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index 869bacde..e99dfc6 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -247,6 +247,10 @@ shutdown(how) -- shut down traffic in one or both directions\n\
#include <net/if.h>
#endif
+#ifdef HAVE_NET_ETHERNET_H
+#include <net/ethernet.h>
+#endif
+
/* Generic socket object definitions and includes */
#define PySocket_BUILDING_SOCKET
#include "socketmodule.h"
@@ -7711,6 +7715,25 @@ PyInit__socket(void)
PyModule_AddIntMacro(m, ALG_OP_VERIFY);
#endif
+/* IEEE 802.3 protocol numbers required for a standard TCP/IP network stack */
+#ifdef ETHERTYPE_ARP
+ PyModule_AddIntMacro(m, ETHERTYPE_ARP);
+#endif
+#ifdef ETHERTYPE_IP
+ PyModule_AddIntMacro(m, ETHERTYPE_IP);
+#endif
+#ifdef ETHERTYPE_IPV6
+ PyModule_AddIntMacro(m, ETHERTYPE_IPV6);
+#endif
+#ifdef ETHERTYPE_VLAN
+ PyModule_AddIntMacro(m, ETHERTYPE_VLAN);
+#endif
+
+/* Linux pseudo-protocol for sniffing every packet */
+#ifdef ETH_P_ALL
+ PyModule_AddIntMacro(m, ETH_P_ALL);
+#endif
+
/* Socket types */
PyModule_AddIntMacro(m, SOCK_STREAM);
PyModule_AddIntMacro(m, SOCK_DGRAM);
diff --git a/configure b/configure
index ab3d6ee..97fd931 100755
--- a/configure
+++ b/configure
@@ -9446,7 +9446,7 @@ for ac_header in \
alloca.h asm/types.h bluetooth.h conio.h crypt.h direct.h dlfcn.h endian.h errno.h fcntl.h grp.h \
ieeefp.h io.h langinfo.h libintl.h libutil.h linux/auxvec.h sys/auxv.h linux/fs.h linux/memfd.h \
linux/random.h linux/soundcard.h \
- linux/tipc.h linux/wait.h netdb.h netinet/in.h netpacket/packet.h poll.h process.h pthread.h pty.h \
+ linux/tipc.h linux/wait.h netdb.h net/ethernet.h netinet/in.h netpacket/packet.h poll.h process.h pthread.h pty.h \
sched.h setjmp.h shadow.h signal.h spawn.h stropts.h sys/audioio.h sys/bsdtty.h sys/devpoll.h \
sys/endian.h sys/epoll.h sys/event.h sys/eventfd.h sys/file.h sys/ioctl.h sys/kern_control.h \
sys/loadavg.h sys/lock.h sys/memfd.h sys/mkdev.h sys/mman.h sys/modem.h sys/param.h sys/poll.h \
diff --git a/configure.ac b/configure.ac
index aebe240..c8e227a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2708,7 +2708,7 @@ AC_CHECK_HEADERS([ \
alloca.h asm/types.h bluetooth.h conio.h crypt.h direct.h dlfcn.h endian.h errno.h fcntl.h grp.h \
ieeefp.h io.h langinfo.h libintl.h libutil.h linux/auxvec.h sys/auxv.h linux/fs.h linux/memfd.h \
linux/random.h linux/soundcard.h \
- linux/tipc.h linux/wait.h netdb.h netinet/in.h netpacket/packet.h poll.h process.h pthread.h pty.h \
+ linux/tipc.h linux/wait.h netdb.h net/ethernet.h netinet/in.h netpacket/packet.h poll.h process.h pthread.h pty.h \
sched.h setjmp.h shadow.h signal.h spawn.h stropts.h sys/audioio.h sys/bsdtty.h sys/devpoll.h \
sys/endian.h sys/epoll.h sys/event.h sys/eventfd.h sys/file.h sys/ioctl.h sys/kern_control.h \
sys/loadavg.h sys/lock.h sys/memfd.h sys/mkdev.h sys/mman.h sys/modem.h sys/param.h sys/poll.h \
diff --git a/pyconfig.h.in b/pyconfig.h.in
index 0d3c851..236cee6 100644
--- a/pyconfig.h.in
+++ b/pyconfig.h.in
@@ -844,6 +844,9 @@
/* Define to 1 if you have the <netpacket/packet.h> header file. */
#undef HAVE_NETPACKET_PACKET_H
+/* Define to 1 if you have the <net/ethernet.h> header file. */
+#undef HAVE_NET_ETHERNET_H
+
/* Define to 1 if you have the <net/if.h> header file. */
#undef HAVE_NET_IF_H