Hi, I've done a small patch to use linux AF_NETLINK sockets (see below). Please comment! Is there a reason for recvmsg() and sendmsg() not to be implemented yet in socketmodule ? The integration with autoconf has not been done, even if this patch should be ok : --- configure.in.ori 2005-01-10 17:09:32.000000000 +0100 +++ configure.in 2005-01-06 18:53:18.000000000 +0100 @@ -967,7 +967,7 @@ sys/audioio.h sys/bsdtty.h sys/file.h sys/loadavg.h sys/lock.h sys/mkdev.h \ sys/modem.h \ sys/param.h sys/poll.h sys/select.h sys/socket.h sys/time.h sys/times.h \ -sys/un.h sys/utsname.h sys/wait.h pty.h libutil.h \ +sys/un.h linux/netlink.h sys/utsname.h sys/wait.h pty.h libutil.h \ sys/resource.h netpacket/packet.h sysexits.h bluetooth.h \ bluetooth/bluetooth.h) AC_HEADER_DIRENT --- pyconfig.h.ori 2005-01-10 17:11:11.000000000 +0100 +++ pyconfig.h 2005-01-06 19:27:33.000000000 +0100 @@ -559,6 +559,9 @@ /* Define to 1 if you have the header file. */ #define HAVE_SYS_UN_H 1 +/* Define to 1 if you have the header file. */ +#define HAVE_LINUX_NETLINK_H 1 + /* Define to 1 if you have the header file. */ #define HAVE_SYS_UTSNAME_H 1 --- socketmodule.h.ori 2005-01-07 19:25:18.000000000 +0100 +++ socketmodule.h 2005-01-06 18:20:54.000000000 +0100 @@ -32,6 +32,12 @@ # undef AF_UNIX #endif +#ifdef HAVE_LINUX_NETLINK_H +# include +#else +# undef AF_NETLINK +#endif + #ifdef HAVE_BLUETOOTH_BLUETOOTH_H #include #include @@ -87,6 +93,9 @@ typedef struct { #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; --- socketmodule.c.ori 2005-01-07 19:25:19.000000000 +0100 +++ socketmodule.c 2005-01-10 17:04:38.000000000 +0100 @@ -948,6 +948,14 @@ makesockaddr(int sockfd, struct sockaddr } #endif /* AF_UNIX */ +#if defined(AF_NETLINK) + case AF_NETLINK: + { + struct sockaddr_nl *a = (struct sockaddr_nl *) addr; + return Py_BuildValue("ii", a->nl_pid, a->nl_groups); + } +#endif /* AF_NETLINK */ + #ifdef ENABLE_IPV6 case AF_INET6: { @@ -1084,6 +1092,31 @@ getsockaddrarg(PySocketSockObject *s, Py } #endif /* AF_UNIX */ +#if defined(AF_NETLINK) + case AF_NETLINK: + { + struct sockaddr_nl* addr; + int pid, groups; + addr = (struct sockaddr_nl *)&(s->sock_addr).nl; + if (!PyTuple_Check(args)) { + PyErr_Format( + PyExc_TypeError, + "getsockaddrarg: " + "AF_NETLINK address must be tuple, not %.500s", + args->ob_type->tp_name); + return 0; + } + if (!PyArg_ParseTuple(args, "II", &pid, &groups)) + return 0; + addr->nl_family = AF_NETLINK; + addr->nl_pid = pid; + addr->nl_groups = groups; + *addr_ret = (struct sockaddr *) addr; + *len_ret = sizeof(*addr); + return 1; + } +#endif + case AF_INET: { struct sockaddr_in* addr; @@ -1280,6 +1313,13 @@ getsockaddrlen(PySocketSockObject *s, so return 1; } #endif /* AF_UNIX */ +#if defined(AF_NETLINK) + case AF_NETLINK: + { + *len_ret = sizeof (struct sockaddr_nl); + return 1; + } +#endif case AF_INET: { @@ -3938,8 +3978,20 @@ init_socket(void) PyModule_AddIntConstant(m, "AF_KEY", AF_KEY); #endif #ifdef AF_NETLINK - /* */ + /* Netlink socket */ PyModule_AddIntConstant(m, "AF_NETLINK", AF_NETLINK); + PyModule_AddIntConstant(m, "NETLINK_ROUTE", NETLINK_ROUTE); + PyModule_AddIntConstant(m, "NETLINK_SKIP", NETLINK_SKIP); + PyModule_AddIntConstant(m, "NETLINK_USERSOCK", NETLINK_USERSOCK); + PyModule_AddIntConstant(m, "NETLINK_FIREWALL", NETLINK_FIREWALL); + PyModule_AddIntConstant(m, "NETLINK_TCPDIAG", NETLINK_TCPDIAG); + PyModule_AddIntConstant(m, "NETLINK_NFLOG", NETLINK_NFLOG); + PyModule_AddIntConstant(m, "NETLINK_XFRM", NETLINK_XFRM); + PyModule_AddIntConstant(m, "NETLINK_ARPD", NETLINK_ARPD); + PyModule_AddIntConstant(m, "NETLINK_ROUTE6", NETLINK_ROUTE6); + PyModule_AddIntConstant(m, "NETLINK_IP6_FW", NETLINK_IP6_FW); + PyModule_AddIntConstant(m, "NETLINK_DNRTMSG", NETLINK_DNRTMSG); + PyModule_AddIntConstant(m, "NETLINK_TAPBASE", NETLINK_TAPBASE); #endif #ifdef AF_ROUTE /* Alias to emulate 4.4BSD */ -- Philippe Biondi SecDev.org Security Consultant/R&D http://www.secdev.org PGP KeyID:3D9A43E2 FingerPrint:C40A772533730E39330DC0985EE8FF5F3D9A43E2