On Sun, Dec 16, 2007 at 01:20:44PM -0300, Alberto Bertogli wrote:
> I know there are two more address types (TIPC_ADDR_MCAST and
> TIPC_ADDR_ID), but I have never used them, so I don't know the
> semantics well enough.
I've added support for those two address types, and an optional fifth
tuple element for the socket scope.
The following patch is an updated version of the previous one containing
these changes.
Thanks a lot,
Alberto
From: Alberto Bertogli <[EMAIL PROTECTED]>
Date: Wed, 5 Dec 2007 18:39:18 -0300
Subject: [PATCH] Make socket support TIPC.
TIPC (http://tipc.sf.net) is an open protocol designed for use in
clustered computer environments. It currently has an open source
implementation for Linux (>= 2.6.16), and VxWorks.
This patch adds optional Linux-only support for TIPC in the socket module.
---
Modules/socketmodule.c | 156 +++++++++++++++++++++++++++++++++++++++++++++++-
Modules/socketmodule.h | 4 +
configure.in | 2 +-
3 files changed, 160 insertions(+), 2 deletions(-)
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -7,7 +7,8 @@ This module provides an interface to Berkeley socket IPC.
Limitations:
- Only AF_INET, AF_INET6 and AF_UNIX address families are supported in a
- portable manner, though AF_PACKET and AF_NETLINK are supported under Linux.
+ portable manner, though AF_PACKET, AF_NETLINK and AF_TIPC are supported
+ under Linux.
- No read/write operations (use sendall/recv or makefile instead).
- Additional restrictions apply on some non-Unix platforms (compensated
for by socket.py).
@@ -52,6 +53,25 @@ Module interface:
the Ethernet protocol number to be received. For example:
("eth0",0x1234). Optional 3rd,4th,5th elements in the tuple
specify packet-type and ha-type/addr.
+- an AF_TIPC socket address is expressed as
+ (addr_type, v1, v2, v3 [, scope]); where addr_type can be one of:
+ TIPC_ADDR_NAMESEQ, TIPC_ADDR_MCAST, TIPC_ADDR_NAME, and TIPC_ADDR_ID;
+ and scope can be one of:
+ TIPC_ZONE_SCOPE, TIPC_CLUSTER_SCOPE, and TIPC_NODE_SCOPE.
+ The meaning of v1, v2 and v3 depends on the value of addr_type:
+ if addr_type is TIPC_ADDR_NAME:
+ v1 is the server type
+ v2 is the port identifier
+ v3 is ignored
+ if addr_type is TIPC_ADDR_NAMESEQ or TIPC_ADDR_MCAST:
+ v1 is the server type
+ v2 is the lower port number
+ v3 is the upper port number
+ if addr_type is TIPC_ADDR_ID:
+ v1 is the node
+ v2 is the ref
+ v3 is ignored
+
Local naming conventions:
@@ -1094,6 +1114,40 @@ makesockaddr(int sockfd, struct sockaddr *addr, int
addrlen, int proto)
}
#endif
+#ifdef HAVE_LINUX_TIPC_H
+ case AF_TIPC:
+ {
+ struct sockaddr_tipc *a = (struct sockaddr_tipc *) addr;
+ if (a->addrtype == TIPC_ADDR_NAMESEQ ||
+ a->addrtype == TIPC_ADDR_MCAST) {
+ return Py_BuildValue("IIIII",
+ a->addrtype,
+ a->addr.nameseq.type,
+ a->addr.nameseq.lower,
+ a->addr.nameseq.upper,
+ a->scope);
+ } else if (a->addrtype == TIPC_ADDR_NAME) {
+ return Py_BuildValue("IIIII",
+ a->addrtype,
+ a->addr.name.name.type,
+ a->addr.name.name.instance,
+ a->addr.name.name.instance,
+ a->scope);
+ } else if (a->addrtype == TIPC_ADDR_ID) {
+ return Py_BuildValue("IIIII",
+ a->addrtype,
+ a->addr.id.node,
+ a->addr.id.ref,
+ 0,
+ a->scope);
+ } else {
+ PyErr_SetString(PyExc_TypeError,
+ "Invalid address type");
+ return NULL;
+ }
+ }
+#endif
+
/* More cases here... */
default:
@@ -1379,6 +1433,56 @@ getsockaddrarg(PySocketSockObject *s, PyObject *args,
}
#endif
+#ifdef HAVE_LINUX_TIPC_H
+ case AF_TIPC:
+ {
+ unsigned int atype, v1, v2, v3;
+ unsigned int scope = TIPC_CLUSTER_SCOPE;
+ struct sockaddr_tipc *addr;
+
+ if (!PyTuple_Check(args)) {
+ PyErr_Format(
+ PyExc_TypeError,
+ "getsockaddrarg: "
+ "AF_TIPC address must be tuple, not %.500s",
+ Py_Type(args)->tp_name);
+ return 0;
+ }
+
+ if (!PyArg_ParseTuple(args,
+ "IIII|I;Invalid TIPC address format",
+ &atype, &v1, &v2, &v3, &scope))
+ return 0;
+
+ addr = (struct sockaddr_tipc *) addr_ret;
+ memset(addr, 0, sizeof(struct sockaddr_tipc));
+
+ addr->family = AF_TIPC;
+ addr->scope = scope;
+ addr->addrtype = atype;
+
+ if (atype == TIPC_ADDR_NAMESEQ || atype == TIPC_ADDR_MCAST) {
+ addr->addr.nameseq.type = v1;
+ addr->addr.nameseq.lower = v2;
+ addr->addr.nameseq.upper = v3;
+ } else if (atype == TIPC_ADDR_NAME) {
+ addr->addr.name.name.type = v1;
+ addr->addr.name.name.instance = v2;
+ } else if (atype == TIPC_ADDR_ID) {
+ addr->addr.id.node = v1;
+ addr->addr.id.ref = v2;
+ } else {
+ /* Shouldn't happen */
+ PyErr_SetString(PyExc_TypeError, "Invalid address
type");
+ return 0;
+ }
+
+ *len_ret = sizeof(*addr);
+
+ return 1;
+ }
+#endif
+
/* More cases here... */
default:
@@ -1464,6 +1568,14 @@ getsockaddrlen(PySocketSockObject *s, socklen_t *len_ret)
}
#endif
+#ifdef HAVE_LINUX_TIPC_H
+ case AF_TIPC:
+ {
+ *len_ret = sizeof (struct sockaddr_tipc);
+ return 1;
+ }
+#endif
+
/* More cases here... */
default:
@@ -4419,6 +4531,48 @@ init_socket(void)
PyModule_AddIntConstant(m, "PACKET_FASTROUTE", PACKET_FASTROUTE);
#endif
+#ifdef HAVE_LINUX_TIPC_H
+ PyModule_AddIntConstant(m, "AF_TIPC", AF_TIPC);
+
+ /* for addresses */
+ PyModule_AddIntConstant(m, "TIPC_ADDR_NAMESEQ", TIPC_ADDR_NAMESEQ);
+ PyModule_AddIntConstant(m, "TIPC_ADDR_MCAST", TIPC_ADDR_MCAST);
+ PyModule_AddIntConstant(m, "TIPC_ADDR_NAME", TIPC_ADDR_NAME);
+ PyModule_AddIntConstant(m, "TIPC_ADDR_ID", TIPC_ADDR_ID);
+
+ PyModule_AddIntConstant(m, "TIPC_ZONE_SCOPE", TIPC_ZONE_SCOPE);
+ PyModule_AddIntConstant(m, "TIPC_CLUSTER_SCOPE", TIPC_CLUSTER_SCOPE);
+ PyModule_AddIntConstant(m, "TIPC_NODE_SCOPE", TIPC_NODE_SCOPE);
+
+ /* for setsockopt() */
+ PyModule_AddIntConstant(m, "SOL_TIPC", SOL_TIPC);
+ PyModule_AddIntConstant(m, "TIPC_IMPORTANCE", TIPC_IMPORTANCE);
+ PyModule_AddIntConstant(m, "TIPC_SRC_DROPPABLE", TIPC_SRC_DROPPABLE);
+ PyModule_AddIntConstant(m, "TIPC_DEST_DROPPABLE",
+ TIPC_DEST_DROPPABLE);
+ PyModule_AddIntConstant(m, "TIPC_CONN_TIMEOUT", TIPC_CONN_TIMEOUT);
+
+ PyModule_AddIntConstant(m, "TIPC_LOW_IMPORTANCE",
+ TIPC_LOW_IMPORTANCE);
+ PyModule_AddIntConstant(m, "TIPC_MEDIUM_IMPORTANCE",
+ TIPC_MEDIUM_IMPORTANCE);
+ PyModule_AddIntConstant(m, "TIPC_HIGH_IMPORTANCE",
+ TIPC_HIGH_IMPORTANCE);
+ PyModule_AddIntConstant(m, "TIPC_CRITICAL_IMPORTANCE",
+ TIPC_CRITICAL_IMPORTANCE);
+
+ /* for subscriptions */
+ PyModule_AddIntConstant(m, "TIPC_SUB_PORTS", TIPC_SUB_PORTS);
+ PyModule_AddIntConstant(m, "TIPC_SUB_SERVICE", TIPC_SUB_SERVICE);
+ PyModule_AddIntConstant(m, "TIPC_SUB_CANCEL", TIPC_SUB_CANCEL);
+ PyModule_AddIntConstant(m, "TIPC_WAIT_FOREVER", TIPC_WAIT_FOREVER);
+ PyModule_AddIntConstant(m, "TIPC_PUBLISHED", TIPC_PUBLISHED);
+ PyModule_AddIntConstant(m, "TIPC_WITHDRAWN", TIPC_WITHDRAWN);
+ PyModule_AddIntConstant(m, "TIPC_SUBSCR_TIMEOUT", TIPC_SUBSCR_TIMEOUT);
+ PyModule_AddIntConstant(m, "TIPC_CFG_SRV", TIPC_CFG_SRV);
+ PyModule_AddIntConstant(m, "TIPC_TOP_SRV", TIPC_TOP_SRV);
+#endif
+
/* Socket types */
PyModule_AddIntConstant(m, "SOCK_STREAM", SOCK_STREAM);
PyModule_AddIntConstant(m, "SOCK_DGRAM", SOCK_DGRAM);
diff --git a/Modules/socketmodule.h b/Modules/socketmodule.h
--- a/Modules/socketmodule.h
+++ b/Modules/socketmodule.h
@@ -59,6 +59,10 @@
# 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
diff --git a/configure.in b/configure.in
--- a/configure.in
+++ b/configure.in
@@ -1106,7 +1106,7 @@ sys/param.h sys/poll.h sys/select.h sys/socket.h
sys/statvfs.h sys/stat.h \
sys/time.h \
sys/times.h sys/types.h sys/un.h sys/utsname.h sys/wait.h pty.h libutil.h \
sys/resource.h netpacket/packet.h sysexits.h bluetooth.h \
-bluetooth/bluetooth.h)
+bluetooth/bluetooth.h linux/tipc.h)
AC_HEADER_DIRENT
AC_HEADER_MAJOR
--
1.5.4.rc0.1096.gcd2a6
-------------------------------------------------------------------------
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