mirror of https://github.com/acidanthera/audk.git
251 lines
6.9 KiB
C
251 lines
6.9 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>
|
|
# if !(defined(UEFI_C_SOURCE) || defined(__BEOS__) || defined(__CYGWIN__) || (defined(PYOS_OS2) && defined(PYCC_VACPP)))
|
|
# include <netinet/tcp.h>
|
|
# endif
|
|
|
|
#else /* MS_WINDOWS */
|
|
# include <winsock2.h>
|
|
# 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 */
|
|
#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>
|
|
#else
|
|
# undef AF_NETLINK
|
|
#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_NETPACKET_PACKET_H
|
|
# include <sys/ioctl.h>
|
|
# include <net/if.h>
|
|
# include <netpacket/packet.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_LINUX_TIPC_H
|
|
# include <linux/tipc.h>
|
|
#endif
|
|
|
|
#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
|
|
|
|
/* Socket address */
|
|
typedef union sock_addr {
|
|
struct sockaddr_in in;
|
|
#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
|
|
#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
|
|
struct sockaddr_l2 bt_l2;
|
|
struct sockaddr_rc bt_rc;
|
|
struct sockaddr_sco bt_sco;
|
|
struct sockaddr_hci bt_hci;
|
|
#endif
|
|
#ifdef HAVE_NETPACKET_PACKET_H
|
|
struct sockaddr_ll ll;
|
|
#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 */
|
|
double sock_timeout; /* Operation timeout in seconds;
|
|
0.0 means non-blocking */
|
|
} 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 */
|
|
typedef struct {
|
|
PyTypeObject *Sock_Type;
|
|
PyObject *error;
|
|
} PySocketModule_APIObject;
|
|
|
|
/* XXX The net effect of the following appears to be to define a function
|
|
XXX named PySocketModule_APIObject in _ssl.c. It's unclear why it isn't
|
|
XXX defined there directly.
|
|
|
|
>>> It's defined here because other modules might also want to use
|
|
>>> the C API.
|
|
|
|
*/
|
|
#ifndef PySocket_BUILDING_SOCKET
|
|
|
|
/* --- C API ----------------------------------------------------*/
|
|
|
|
/* Interfacestructure to C API for other modules.
|
|
Call PySocketModule_ImportModuleAndAPI() to initialize this
|
|
structure. After that usage is simple:
|
|
|
|
if (!PyArg_ParseTuple(args, "O!|zz:ssl",
|
|
&PySocketModule.Sock_Type, (PyObject*)&Sock,
|
|
&key_file, &cert_file))
|
|
return NULL;
|
|
...
|
|
*/
|
|
|
|
static
|
|
PySocketModule_APIObject PySocketModule;
|
|
|
|
/* You *must* call this before using any of the functions in
|
|
PySocketModule and check its outcome; otherwise all accesses will
|
|
result in a segfault. Returns 0 on success. */
|
|
|
|
#ifndef DPRINTF
|
|
# define DPRINTF if (0) printf
|
|
#endif
|
|
|
|
static
|
|
int PySocketModule_ImportModuleAndAPI(void)
|
|
{
|
|
void *api;
|
|
|
|
DPRINTF(" Loading capsule %s\n", PySocket_CAPSULE_NAME);
|
|
api = PyCapsule_Import(PySocket_CAPSULE_NAME, 1);
|
|
if (api == NULL)
|
|
goto onError;
|
|
memcpy(&PySocketModule, api, sizeof(PySocketModule));
|
|
DPRINTF(" API object loaded and initialized.\n");
|
|
return 0;
|
|
|
|
onError:
|
|
DPRINTF(" not found.\n");
|
|
return -1;
|
|
}
|
|
|
|
#endif /* !PySocket_BUILDING_SOCKET */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* !Py__SOCKET_H */
|