mirror of
https://github.com/python/cpython.git
synced 2024-11-27 15:27:06 +01:00
d207c7cd5a
<pycore_time.h> include is no longer needed to get the PyTime_t type in internal header files. This type is now provided by <Python.h> include. Add <pycore_time.h> includes to C files instead.
394 lines
9.5 KiB
C
394 lines
9.5 KiB
C
/* Socket module header file */
|
|
|
|
/* Includes needed for the sockaddr_* symbols below */
|
|
#ifndef MS_WINDOWS
|
|
#ifdef __VMS
|
|
# include <socket.h>
|
|
# else
|
|
# include <sys/socket.h>
|
|
# endif
|
|
# include <netinet/in.h>
|
|
# include <netinet/tcp.h>
|
|
|
|
#else /* MS_WINDOWS */
|
|
# include <winsock2.h>
|
|
|
|
/*
|
|
* If Windows has bluetooth support, include bluetooth constants.
|
|
*/
|
|
#ifdef AF_BTH
|
|
# include <ws2bth.h>
|
|
# include <pshpack1.h>
|
|
|
|
/*
|
|
* The current implementation assumes the bdaddr in the sockaddr structs
|
|
* will be a bdaddr_t. We treat this as an opaque type: on *nix systems, it
|
|
* will be a struct with a single member (an array of six bytes). On windows,
|
|
* we typedef this to ULONGLONG to match the Windows definition.
|
|
*/
|
|
typedef ULONGLONG bdaddr_t;
|
|
|
|
/*
|
|
* Redefine SOCKADDR_BTH to provide names compatible with _BT_RC_MEMB() macros.
|
|
*/
|
|
struct SOCKADDR_BTH_REDEF {
|
|
union {
|
|
USHORT addressFamily;
|
|
USHORT family;
|
|
};
|
|
|
|
union {
|
|
ULONGLONG btAddr;
|
|
bdaddr_t bdaddr;
|
|
};
|
|
|
|
GUID serviceClassId;
|
|
|
|
union {
|
|
ULONG port;
|
|
ULONG channel;
|
|
};
|
|
|
|
};
|
|
# include <poppack.h>
|
|
#endif
|
|
|
|
/* Windows 'supports' CMSG_LEN, but does not follow the POSIX standard
|
|
* interface at all, so there is no point including the code that
|
|
* attempts to use it.
|
|
*/
|
|
# ifdef PySocket_BUILDING_SOCKET
|
|
# undef CMSG_LEN
|
|
# endif
|
|
# include <ws2tcpip.h>
|
|
/* VC6 is shipped with old platform headers, and does not have MSTcpIP.h
|
|
* Separate SDKs have all the functions we want, but older ones don't have
|
|
* any version information.
|
|
* I use SIO_GET_MULTICAST_FILTER to detect a decent SDK.
|
|
*/
|
|
# ifdef SIO_GET_MULTICAST_FILTER
|
|
# include <mstcpip.h> /* for SIO_RCVALL */
|
|
# define HAVE_ADDRINFO
|
|
# define HAVE_SOCKADDR_STORAGE
|
|
# define HAVE_GETADDRINFO
|
|
# define HAVE_GETNAMEINFO
|
|
# define ENABLE_IPV6
|
|
# else
|
|
typedef int socklen_t;
|
|
# endif /* IPPROTO_IPV6 */
|
|
|
|
/* Remove ifdef once Py_WINVER >= 0x0604
|
|
* socket.h only defines AF_HYPERV if _WIN32_WINNT is at that level or higher
|
|
* so for now it's just manually defined.
|
|
*/
|
|
# ifndef AF_HYPERV
|
|
# define AF_HYPERV 34
|
|
# endif
|
|
# include <hvsocket.h>
|
|
#endif /* MS_WINDOWS */
|
|
|
|
#ifdef HAVE_SYS_UN_H
|
|
# include <sys/un.h>
|
|
#else
|
|
# undef AF_UNIX
|
|
#endif
|
|
|
|
#ifdef HAVE_LINUX_NETLINK_H
|
|
# ifdef HAVE_ASM_TYPES_H
|
|
# include <asm/types.h>
|
|
# endif
|
|
# include <linux/netlink.h>
|
|
#elif defined(HAVE_NETLINK_NETLINK_H)
|
|
# include <netlink/netlink.h>
|
|
#else
|
|
# undef AF_NETLINK
|
|
#endif
|
|
|
|
#ifdef HAVE_LINUX_QRTR_H
|
|
# ifdef HAVE_ASM_TYPES_H
|
|
# include <asm/types.h>
|
|
# endif
|
|
# include <linux/qrtr.h>
|
|
#else
|
|
# undef AF_QIPCRTR
|
|
#endif
|
|
|
|
#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
|
|
#include <bluetooth/bluetooth.h>
|
|
#include <bluetooth/rfcomm.h>
|
|
#include <bluetooth/l2cap.h>
|
|
#include <bluetooth/sco.h>
|
|
#include <bluetooth/hci.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_BLUETOOTH_H
|
|
#include <bluetooth.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_NET_IF_H
|
|
# include <net/if.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_NETPACKET_PACKET_H
|
|
# include <sys/ioctl.h>
|
|
# include <netpacket/packet.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_LINUX_TIPC_H
|
|
# include <linux/tipc.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_LINUX_CAN_H
|
|
# include <linux/can.h>
|
|
#elif defined(HAVE_NETCAN_CAN_H)
|
|
# include <netcan/can.h>
|
|
#else
|
|
# undef AF_CAN
|
|
# undef PF_CAN
|
|
#endif
|
|
|
|
#ifdef HAVE_LINUX_CAN_RAW_H
|
|
#include <linux/can/raw.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_LINUX_CAN_BCM_H
|
|
#include <linux/can/bcm.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_LINUX_CAN_J1939_H
|
|
#include <linux/can/j1939.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_SYS_SYS_DOMAIN_H
|
|
#include <sys/sys_domain.h>
|
|
#endif
|
|
#ifdef HAVE_SYS_KERN_CONTROL_H
|
|
#include <sys/kern_control.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_LINUX_VM_SOCKETS_H
|
|
# include <linux/vm_sockets.h>
|
|
#else
|
|
# undef AF_VSOCK
|
|
#endif
|
|
|
|
#ifdef HAVE_SOCKADDR_ALG
|
|
|
|
# include <linux/if_alg.h>
|
|
# ifndef AF_ALG
|
|
# define AF_ALG 38
|
|
# endif
|
|
# ifndef SOL_ALG
|
|
# define SOL_ALG 279
|
|
# endif
|
|
|
|
/* Linux 3.19 */
|
|
# ifndef ALG_SET_AEAD_ASSOCLEN
|
|
# define ALG_SET_AEAD_ASSOCLEN 4
|
|
# endif
|
|
# ifndef ALG_SET_AEAD_AUTHSIZE
|
|
# define ALG_SET_AEAD_AUTHSIZE 5
|
|
# endif
|
|
/* Linux 4.8 */
|
|
# ifndef ALG_SET_PUBKEY
|
|
# define ALG_SET_PUBKEY 6
|
|
# endif
|
|
|
|
# ifndef ALG_OP_SIGN
|
|
# define ALG_OP_SIGN 2
|
|
# endif
|
|
# ifndef ALG_OP_VERIFY
|
|
# define ALG_OP_VERIFY 3
|
|
# endif
|
|
|
|
#endif /* HAVE_SOCKADDR_ALG */
|
|
|
|
#ifdef __EMSCRIPTEN__
|
|
// wasm32-emscripten sockets only support subset of IPv4 and IPv6.
|
|
// SCTP protocol crashes runtime.
|
|
#ifdef IPPROTO_SCTP
|
|
# undef IPPROTO_SCTP
|
|
#endif
|
|
// setsockopt() fails with ENOPROTOOPT, getsockopt only supports SO_ERROR.
|
|
// undef SO_REUSEADDR and SO_REUSEPORT so they cannot be used.
|
|
#ifdef SO_REUSEADDR
|
|
# undef SO_REUSEADDR
|
|
#endif
|
|
#ifdef SO_REUSEPORT
|
|
# undef SO_REUSEPORT
|
|
#endif
|
|
#endif // __EMSCRIPTEN__
|
|
|
|
#ifndef Py__SOCKET_H
|
|
#define Py__SOCKET_H
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Python module and C API name */
|
|
#define PySocket_MODULE_NAME "_socket"
|
|
#define PySocket_CAPI_NAME "CAPI"
|
|
#define PySocket_CAPSULE_NAME PySocket_MODULE_NAME "." PySocket_CAPI_NAME
|
|
|
|
/* Abstract the socket file descriptor type */
|
|
#ifdef MS_WINDOWS
|
|
typedef SOCKET SOCKET_T;
|
|
# ifdef MS_WIN64
|
|
# define SIZEOF_SOCKET_T 8
|
|
# else
|
|
# define SIZEOF_SOCKET_T 4
|
|
# endif
|
|
#else
|
|
typedef int SOCKET_T;
|
|
# define SIZEOF_SOCKET_T SIZEOF_INT
|
|
#endif
|
|
|
|
#if SIZEOF_SOCKET_T <= SIZEOF_LONG
|
|
#define PyLong_FromSocket_t(fd) PyLong_FromLong((SOCKET_T)(fd))
|
|
#define PyLong_AsSocket_t(fd) (SOCKET_T)PyLong_AsLong(fd)
|
|
#else
|
|
#define PyLong_FromSocket_t(fd) PyLong_FromLongLong((SOCKET_T)(fd))
|
|
#define PyLong_AsSocket_t(fd) (SOCKET_T)PyLong_AsLongLong(fd)
|
|
#endif
|
|
|
|
// AF_HYPERV is only supported on Windows
|
|
#if defined(AF_HYPERV) && defined(MS_WINDOWS)
|
|
# define HAVE_AF_HYPERV
|
|
#endif
|
|
|
|
/* Socket address */
|
|
typedef union sock_addr {
|
|
struct sockaddr_in in;
|
|
struct sockaddr sa;
|
|
#ifdef AF_UNIX
|
|
struct sockaddr_un un;
|
|
#endif
|
|
#ifdef AF_NETLINK
|
|
struct sockaddr_nl nl;
|
|
#endif
|
|
#ifdef ENABLE_IPV6
|
|
struct sockaddr_in6 in6;
|
|
struct sockaddr_storage storage;
|
|
#endif
|
|
#if defined(HAVE_BLUETOOTH_H) && defined(__FreeBSD__)
|
|
struct sockaddr_l2cap bt_l2;
|
|
struct sockaddr_rfcomm bt_rc;
|
|
struct sockaddr_sco bt_sco;
|
|
struct sockaddr_hci bt_hci;
|
|
#elif defined(HAVE_BLUETOOTH_BLUETOOTH_H)
|
|
struct sockaddr_l2 bt_l2;
|
|
struct sockaddr_rc bt_rc;
|
|
struct sockaddr_sco bt_sco;
|
|
struct sockaddr_hci bt_hci;
|
|
#elif defined(MS_WINDOWS)
|
|
struct SOCKADDR_BTH_REDEF bt_rc;
|
|
#endif
|
|
#ifdef HAVE_NETPACKET_PACKET_H
|
|
struct sockaddr_ll ll;
|
|
#endif
|
|
#if defined(HAVE_LINUX_CAN_H) || defined(HAVE_NETCAN_CAN_H)
|
|
struct sockaddr_can can;
|
|
#endif
|
|
#ifdef HAVE_SYS_KERN_CONTROL_H
|
|
struct sockaddr_ctl ctl;
|
|
#endif
|
|
#ifdef HAVE_SOCKADDR_ALG
|
|
struct sockaddr_alg alg;
|
|
#endif
|
|
#ifdef AF_QIPCRTR
|
|
struct sockaddr_qrtr sq;
|
|
#endif
|
|
#ifdef AF_VSOCK
|
|
struct sockaddr_vm vm;
|
|
#endif
|
|
#ifdef HAVE_LINUX_TIPC_H
|
|
struct sockaddr_tipc tipc;
|
|
#endif
|
|
#ifdef HAVE_AF_HYPERV
|
|
SOCKADDR_HV hv;
|
|
#endif
|
|
} sock_addr_t;
|
|
|
|
/* The object holding a socket. It holds some extra information,
|
|
like the address family, which is used to decode socket address
|
|
arguments properly. */
|
|
|
|
typedef struct {
|
|
PyObject_HEAD
|
|
SOCKET_T sock_fd; /* Socket file descriptor */
|
|
int sock_family; /* Address family, e.g., AF_INET */
|
|
int sock_type; /* Socket type, e.g., SOCK_STREAM */
|
|
int sock_proto; /* Protocol type, usually 0 */
|
|
PyObject *(*errorhandler)(void); /* Error handler; checks
|
|
errno, returns NULL and
|
|
sets a Python exception */
|
|
PyTime_t sock_timeout; /* Operation timeout in seconds;
|
|
0.0 means non-blocking */
|
|
struct _socket_state *state;
|
|
} PySocketSockObject;
|
|
|
|
/* --- C API ----------------------------------------------------*/
|
|
|
|
/* Short explanation of what this C API export mechanism does
|
|
and how it works:
|
|
|
|
The _ssl module needs access to the type object defined in
|
|
the _socket module. Since cross-DLL linking introduces a lot of
|
|
problems on many platforms, the "trick" is to wrap the
|
|
C API of a module in a struct which then gets exported to
|
|
other modules via a PyCapsule.
|
|
|
|
The code in socketmodule.c defines this struct (which currently
|
|
only contains the type object reference, but could very
|
|
well also include other C APIs needed by other modules)
|
|
and exports it as PyCapsule via the module dictionary
|
|
under the name "CAPI".
|
|
|
|
Other modules can now include the socketmodule.h file
|
|
which defines the needed C APIs to import and set up
|
|
a static copy of this struct in the importing module.
|
|
|
|
After initialization, the importing module can then
|
|
access the C APIs from the _socket module by simply
|
|
referring to the static struct, e.g.
|
|
|
|
Load _socket module and its C API; this sets up the global
|
|
PySocketModule:
|
|
|
|
if (PySocketModule_ImportModuleAndAPI())
|
|
return;
|
|
|
|
|
|
Now use the C API as if it were defined in the using
|
|
module:
|
|
|
|
if (!PyArg_ParseTuple(args, "O!|zz:ssl",
|
|
|
|
PySocketModule.Sock_Type,
|
|
|
|
(PyObject*)&Sock,
|
|
&key_file, &cert_file))
|
|
return NULL;
|
|
|
|
Support could easily be extended to export more C APIs/symbols
|
|
this way. Currently, only the type object is exported,
|
|
other candidates would be socket constructors and socket
|
|
access functions.
|
|
|
|
*/
|
|
|
|
/* C API for usage by other Python modules.
|
|
* Always add new things to the end for binary compatibility. */
|
|
typedef struct {
|
|
PyTypeObject *Sock_Type;
|
|
PyObject *error;
|
|
PyObject *timeout_error;
|
|
} PySocketModule_APIObject;
|
|
|
|
#define PySocketModule_ImportModuleAndAPI() PyCapsule_Import(PySocket_CAPSULE_NAME, 1)
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* !Py__SOCKET_H */
|