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authorJelmer Vernooij <jelmer@samba.org>2008-05-24 18:18:21 +0200
committerJelmer Vernooij <jelmer@samba.org>2008-05-24 18:18:21 +0200
commit453396c67b47bac0b39b276a332cf39c87d36d71 (patch)
tree1ad02a7bdf97cc0ffde51e1671e37964695d8ec9
parent73b789b6d25698dba15c867c71d0cdd8c264f352 (diff)
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Initial work on IRPC Python support.
(This used to be commit df01b040f7450c3be29f369a993955fbc4678bd9)
-rw-r--r--source4/lib/messaging/pyirpc.c201
1 files changed, 201 insertions, 0 deletions
diff --git a/source4/lib/messaging/pyirpc.c b/source4/lib/messaging/pyirpc.c
new file mode 100644
index 0000000000..49ca51fb33
--- /dev/null
+++ b/source4/lib/messaging/pyirpc.c
@@ -0,0 +1,201 @@
+/*
+ Unix SMB/CIFS implementation.
+ Copyright © Jelmer Vernooij <jelmer@samba.org> 2008
+
+ Based on the equivalent for EJS:
+ Copyright © Andrew Tridgell <tridge@samba.org> 2005
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include <Python.h>
+#include "lib/messaging/irpc.h"
+
+/*
+ messaging clients need server IDs as well ...
+ */
+#define EJS_ID_BASE 0x30000000
+
+/*
+ state of a irpc 'connection'
+*/
+struct ejs_irpc_connection {
+ const char *server_name;
+ struct server_id *dest_ids;
+ struct messaging_context *msg_ctx;
+};
+
+/*
+ setup a context for talking to a irpc server
+ example:
+ status = irpc.connect("smb_server");
+*/
+
+PyObject *py_irpc_connect(PyObject *args, PyObjet *kwargs)
+{
+ NTSTATUS status;
+ int i;
+ struct event_context *ev;
+ struct ejs_irpc_connection *p;
+ struct MprVar *this = mprGetProperty(ejsGetLocalObject(eid), "this", 0);
+
+ /* validate arguments */
+ if (argc != 1) {
+ ejsSetErrorMsg(eid, "rpc_connect invalid arguments");
+ return -1;
+ }
+
+ p = talloc(this, struct ejs_irpc_connection);
+ if (p == NULL) {
+ return -1;
+ }
+
+ p->server_name = argv[0];
+
+ ev = mprEventCtx();
+
+ /* create a messaging context, looping as we have no way to
+ allocate temporary server ids automatically */
+ for (i=0;i<10000;i++) {
+ p->msg_ctx = messaging_init(p,
+ lp_messaging_path(p, mprLpCtx()),
+ cluster_id(EJS_ID_BASE, i),
+ lp_iconv_convenience(mprLpCtx()),
+ ev);
+ if (p->msg_ctx) break;
+ }
+ if (p->msg_ctx == NULL) {
+ ejsSetErrorMsg(eid, "irpc_connect unable to create a messaging context");
+ talloc_free(p);
+ return -1;
+ }
+
+ p->dest_ids = irpc_servers_byname(p->msg_ctx, p, p->server_name);
+ if (p->dest_ids == NULL || p->dest_ids[0].id == 0) {
+ talloc_free(p);
+ status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ } else {
+ mprSetPtrChild(this, "irpc", p);
+ status = NT_STATUS_OK;
+ }
+
+ mpr_Return(eid, mprNTSTATUS(status));
+ return 0;
+}
+
+/*
+ make an irpc call - called via the same interface as rpc
+*/
+static int ejs_irpc_call(int eid, struct MprVar *io,
+ const struct ndr_interface_table *iface, int callnum,
+ ejs_pull_function_t ejs_pull, ejs_push_function_t ejs_push)
+{
+ NTSTATUS status;
+ void *ptr;
+ struct ejs_rpc *ejs;
+ const struct ndr_interface_call *call;
+ struct ejs_irpc_connection *p;
+ struct irpc_request **reqs;
+ int i, count;
+ struct MprVar *results;
+
+ p = (struct ejs_irpc_connection *)mprGetThisPtr(eid, "irpc");
+
+ ejs = talloc(mprMemCtx(), struct ejs_rpc);
+ if (ejs == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+
+ call = &iface->calls[callnum];
+
+ ejs->eid = eid;
+ ejs->callname = call->name;
+
+ /* allocate the C structure */
+ ptr = talloc_zero_size(ejs, call->struct_size);
+ if (ptr == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+
+ /* convert the mpr object into a C structure */
+ status = ejs_pull(ejs, io, ptr);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto done;
+ }
+
+ for (count=0;p->dest_ids[count].id;count++) /* noop */ ;
+
+ /* we need to make a call per server */
+ reqs = talloc_array(ejs, struct irpc_request *, count);
+ if (reqs == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+
+ /* make the actual calls */
+ for (i=0;i<count;i++) {
+ reqs[i] = irpc_call_send(p->msg_ctx, p->dest_ids[i],
+ iface, callnum, ptr, ptr);
+ if (reqs[i] == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+ talloc_steal(reqs, reqs[i]);
+ }
+
+ mprSetVar(io, "results", mprObject("results"));
+ results = mprGetProperty(io, "results", NULL);
+
+ /* and receive the results, placing them in io.results[i] */
+ for (i=0;i<count;i++) {
+ struct MprVar *output;
+
+ status = irpc_call_recv(reqs[i]);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto done;
+ }
+ status = ejs_push(ejs, io, ptr);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto done;
+ }
+
+ /* add to the results array */
+ output = mprGetProperty(io, "output", NULL);
+ if (output) {
+ char idx[16];
+ mprItoa(i, idx, sizeof(idx));
+ mprSetProperty(results, idx, output);
+ mprDeleteProperty(io, "output");
+ }
+ }
+ mprSetVar(results, "length", mprCreateIntegerVar(i));
+
+done:
+ talloc_free(ejs);
+ mpr_Return(eid, mprNTSTATUS(status));
+ if (NT_STATUS_EQUAL(status, NT_STATUS_INTERNAL_ERROR)) {
+ return -1;
+ }
+ return 0;
+}
+
+
+
+static void initirpc(void)
+{
+
+}