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-rw-r--r--source4/lib/stream/packet.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/source4/lib/stream/packet.c b/source4/lib/stream/packet.c
index 50687d18fa..3a7a938249 100644
--- a/source4/lib/stream/packet.c
+++ b/source4/lib/stream/packet.c
@@ -44,6 +44,12 @@ struct packet_context {
struct fd_event *fde;
BOOL serialise;
BOOL processing;
+
+ struct send_element {
+ struct send_element *next, *prev;
+ DATA_BLOB blob;
+ size_t nsent;
+ } *send_queue;
};
/*
@@ -323,6 +329,61 @@ next_partial:
}
+/*
+ trigger a run of the send queue
+*/
+void packet_queue_run(struct packet_context *pc)
+{
+ while (pc->send_queue) {
+ struct send_element *el = pc->send_queue;
+ NTSTATUS status;
+ size_t nwritten;
+ DATA_BLOB blob = data_blob_const(el->blob.data + el->nsent,
+ el->blob.length - el->nsent);
+
+ if (pc->tls) {
+ status = tls_socket_send(pc->tls, &blob, &nwritten);
+ } else {
+ status = socket_send(pc->sock, &blob, &nwritten, 0);
+ }
+ if (NT_STATUS_IS_ERR(status)) {
+ packet_error(pc, NT_STATUS_NET_WRITE_FAULT);
+ return;
+ }
+ if (!NT_STATUS_IS_OK(status)) {
+ return;
+ }
+ el->nsent += nwritten;
+ if (el->nsent == el->blob.length) {
+ DLIST_REMOVE(pc->send_queue, el);
+ talloc_free(el);
+ }
+ }
+
+ /* we're out of requests to send, so don't wait for write
+ events any more */
+ EVENT_FD_NOT_WRITEABLE(pc->fde);
+}
+
+/*
+ put a packet in the send queue
+*/
+NTSTATUS packet_send(struct packet_context *pc, DATA_BLOB blob)
+{
+ struct send_element *el;
+ el = talloc(pc, struct send_element);
+ NT_STATUS_HAVE_NO_MEMORY(el);
+
+ DLIST_ADD_END(pc->send_queue, el, struct send_element *);
+ el->blob = blob;
+ el->nsent = 0;
+ talloc_steal(el, blob.data);
+
+ EVENT_FD_WRITEABLE(pc->fde);
+
+ return NT_STATUS_OK;
+}
+
/*
a full request checker for NBT formatted packets (first 3 bytes are length)
@@ -338,3 +399,5 @@ NTSTATUS packet_full_request_nbt(void *private, DATA_BLOB blob, size_t *packet_s
}
return NT_STATUS_OK;
}
+
+