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-rw-r--r--source4/lib/messaging/irpc.h10
-rw-r--r--source4/lib/messaging/messaging.c125
2 files changed, 86 insertions, 49 deletions
diff --git a/source4/lib/messaging/irpc.h b/source4/lib/messaging/irpc.h
index f015215940..aa06a2de06 100644
--- a/source4/lib/messaging/irpc.h
+++ b/source4/lib/messaging/irpc.h
@@ -20,12 +20,20 @@
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include "librpc/gen_ndr/irpc.h"
+
/*
an incoming irpc message
*/
struct irpc_message {
uint32_t from;
void *private;
+ struct irpc_header header;
+ struct ndr_pull *ndr;
+ BOOL defer_reply;
+ struct messaging_context *msg_ctx;
+ struct irpc_list *irpc;
+ void *data;
};
/* don't allow calls to take too long */
@@ -100,4 +108,6 @@ NTSTATUS irpc_call(struct messaging_context *msg_ctx,
NTSTATUS irpc_add_name(struct messaging_context *msg_ctx, const char *name);
uint32_t *irpc_servers_byname(struct messaging_context *msg_ctx, const char *name);
void irpc_remove_name(struct messaging_context *msg_ctx, const char *name);
+NTSTATUS irpc_send_reply(struct irpc_message *m);
+
diff --git a/source4/lib/messaging/messaging.c b/source4/lib/messaging/messaging.c
index 6cabb4c63b..9fcfd58972 100644
--- a/source4/lib/messaging/messaging.c
+++ b/source4/lib/messaging/messaging.c
@@ -488,21 +488,20 @@ NTSTATUS irpc_register(struct messaging_context *msg_ctx,
/*
handle an incoming irpc reply message
*/
-static void irpc_handler_reply(struct messaging_context *msg_ctx,
- struct ndr_pull *ndr, struct irpc_header *header)
+static void irpc_handler_reply(struct messaging_context *msg_ctx, struct irpc_message *m)
{
struct irpc_request *irpc;
- irpc = idr_find(msg_ctx->idr, header->callid);
+ irpc = idr_find(msg_ctx->idr, m->header.callid);
if (irpc == NULL) return;
/* parse the reply data */
- irpc->status = irpc->table->calls[irpc->callnum].ndr_pull(ndr, NDR_OUT, irpc->r);
+ irpc->status = irpc->table->calls[irpc->callnum].ndr_pull(m->ndr, NDR_OUT, irpc->r);
if (NT_STATUS_IS_OK(irpc->status)) {
- irpc->status = header->status;
- talloc_steal(irpc->mem_ctx, ndr);
+ irpc->status = m->header.status;
+ talloc_steal(irpc->mem_ctx, m);
} else {
- talloc_steal(irpc, ndr);
+ talloc_steal(irpc, m);
}
irpc->done = True;
if (irpc->async.fn) {
@@ -510,68 +509,93 @@ static void irpc_handler_reply(struct messaging_context *msg_ctx,
}
}
+/*
+ send a irpc reply
+*/
+NTSTATUS irpc_send_reply(struct irpc_message *m)
+{
+ struct ndr_push *push;
+ NTSTATUS status;
+ DATA_BLOB packet;
+
+ /* setup the reply */
+ push = ndr_push_init_ctx(m->ndr);
+ if (push == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto failed;
+ }
+
+ m->header.flags |= IRPC_FLAG_REPLY;
+
+ /* construct the packet */
+ status = ndr_push_irpc_header(push, NDR_SCALARS|NDR_BUFFERS, &m->header);
+ if (!NT_STATUS_IS_OK(status)) goto failed;
+
+ status = m->irpc->table->calls[m->irpc->callnum].ndr_push(push, NDR_OUT, m->data);
+ if (!NT_STATUS_IS_OK(status)) goto failed;
+
+ /* send the reply message */
+ packet = ndr_push_blob(push);
+ status = messaging_send(m->msg_ctx, m->from, MSG_IRPC, &packet);
+ if (!NT_STATUS_IS_OK(status)) goto failed;
+
+failed:
+ talloc_free(m);
+ return status;
+}
/*
handle an incoming irpc request message
*/
static void irpc_handler_request(struct messaging_context *msg_ctx,
- struct ndr_pull *ndr, struct irpc_header *header,
- uint32_t src)
+ struct irpc_message *m)
{
struct irpc_list *i;
void *r;
NTSTATUS status;
- struct irpc_message m;
- struct ndr_push *push;
- DATA_BLOB packet;
for (i=msg_ctx->irpc; i; i=i->next) {
- if (GUID_equal(&i->uuid, &header->uuid) &&
- i->table->if_version == header->if_version &&
- i->callnum == header->callnum) {
+ if (GUID_equal(&i->uuid, &m->header.uuid) &&
+ i->table->if_version == m->header.if_version &&
+ i->callnum == m->header.callnum) {
break;
}
}
if (i == NULL) {
/* no registered handler for this message */
+ talloc_free(m);
return;
}
/* allocate space for the structure */
- r = talloc_zero_size(ndr, i->table->calls[header->callnum].struct_size);
+ r = talloc_zero_size(m->ndr, i->table->calls[m->header.callnum].struct_size);
if (r == NULL) goto failed;
/* parse the request data */
- status = i->table->calls[i->callnum].ndr_pull(ndr, NDR_IN, r);
+ status = i->table->calls[i->callnum].ndr_pull(m->ndr, NDR_IN, r);
if (!NT_STATUS_IS_OK(status)) goto failed;
/* make the call */
- m.from = src;
- m.private = i->private;
- header->status = i->fn(&m, r);
+ m->private = i->private;
+ m->defer_reply = False;
+ m->msg_ctx = msg_ctx;
+ m->irpc = i;
+ m->data = r;
- /* setup the reply */
- push = ndr_push_init_ctx(ndr);
- if (push == NULL) goto failed;
-
- header->flags |= IRPC_FLAG_REPLY;
+ m->header.status = i->fn(m, r);
- /* construct the packet */
- status = ndr_push_irpc_header(push, NDR_SCALARS|NDR_BUFFERS, header);
- if (!NT_STATUS_IS_OK(status)) goto failed;
-
- status = i->table->calls[i->callnum].ndr_push(push, NDR_OUT, r);
- if (!NT_STATUS_IS_OK(status)) goto failed;
+ if (m->defer_reply) {
+ /* the server function has asked to defer the reply to later */
+ talloc_steal(msg_ctx, m);
+ return;
+ }
- /* send the reply message */
- packet = ndr_push_blob(push);
- status = messaging_send(msg_ctx, src, MSG_IRPC, &packet);
- if (!NT_STATUS_IS_OK(status)) goto failed;
+ irpc_send_reply(m);
+ return;
failed:
- /* nothing to clean up */
- return;
+ talloc_free(m);
}
/*
@@ -580,28 +604,31 @@ failed:
static void irpc_handler(struct messaging_context *msg_ctx, void *private,
uint32_t msg_type, uint32_t src, DATA_BLOB *packet)
{
- struct irpc_header header;
- struct ndr_pull *ndr;
+ struct irpc_message *m;
NTSTATUS status;
- ndr = ndr_pull_init_blob(packet, msg_ctx);
- if (ndr == NULL) goto failed;
+ m = talloc(msg_ctx, struct irpc_message);
+ if (m == NULL) goto failed;
+
+ m->from = src;
- ndr->flags |= LIBNDR_FLAG_REF_ALLOC;
+ m->ndr = ndr_pull_init_blob(packet, m);
+ if (m->ndr == NULL) goto failed;
- status = ndr_pull_irpc_header(ndr, NDR_BUFFERS|NDR_SCALARS, &header);
+ m->ndr->flags |= LIBNDR_FLAG_REF_ALLOC;
+
+ status = ndr_pull_irpc_header(m->ndr, NDR_BUFFERS|NDR_SCALARS, &m->header);
if (!NT_STATUS_IS_OK(status)) goto failed;
- if (header.flags & IRPC_FLAG_REPLY) {
- irpc_handler_reply(msg_ctx, ndr, &header);
+ if (m->header.flags & IRPC_FLAG_REPLY) {
+ irpc_handler_reply(msg_ctx, m);
} else {
- irpc_handler_request(msg_ctx, ndr, &header, src);
- talloc_free(ndr);
+ irpc_handler_request(msg_ctx, m);
}
return;
failed:
- talloc_free(ndr);
+ talloc_free(m);
}
@@ -761,7 +788,7 @@ NTSTATUS irpc_add_name(struct messaging_context *msg_ctx, const char *name)
}
rec = tdb_fetch_bystring(t->tdb, name);
count = rec.dsize / sizeof(uint32_t);
- rec.dptr = (char *)realloc_p(rec.dptr, uint32_t, count+1);
+ rec.dptr = (unsigned char *)realloc_p(rec.dptr, uint32_t, count+1);
rec.dsize += sizeof(uint32_t);
if (rec.dptr == NULL) {
tdb_unlock_bystring(t->tdb, name);
generated by cgit (git 2.34.1) at 2024-11-17 15:10:48 +0000