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-rw-r--r--source4/lib/socket/connect_multi.c129
-rw-r--r--source4/lib/socket/socket.h28
2 files changed, 147 insertions, 10 deletions
diff --git a/source4/lib/socket/connect_multi.c b/source4/lib/socket/connect_multi.c
index 2b926c8bd9..c8231b3cff 100644
--- a/source4/lib/socket/connect_multi.c
+++ b/source4/lib/socket/connect_multi.c
@@ -42,6 +42,8 @@ struct connect_multi_state {
uint16_t result_port;
int num_connects_sent, num_connects_recv;
+
+ struct socket_connect_multi_ex *ex;
};
/*
@@ -59,17 +61,19 @@ static void connect_multi_timer(struct tevent_context *ev,
struct timeval tv, void *p);
static void connect_multi_next_socket(struct composite_context *result);
static void continue_one(struct composite_context *creq);
+static void continue_one_ex(struct tevent_req *subreq);
/*
setup an async socket_connect, with multiple ports
*/
-_PUBLIC_ struct composite_context *socket_connect_multi_send(
+_PUBLIC_ struct composite_context *socket_connect_multi_ex_send(
TALLOC_CTX *mem_ctx,
const char *server_name,
int num_server_ports,
uint16_t *server_ports,
struct resolve_context *resolve_ctx,
- struct tevent_context *event_ctx)
+ struct tevent_context *event_ctx,
+ struct socket_connect_multi_ex *ex)
{
struct composite_context *result;
struct connect_multi_state *multi;
@@ -95,6 +99,8 @@ _PUBLIC_ struct composite_context *socket_connect_multi_send(
multi->ports[i] = server_ports[i];
}
+ multi->ex = ex;
+
/*
we don't want to do the name resolution separately
for each port, so start it now, then only start on
@@ -225,10 +231,61 @@ static void continue_one(struct composite_context *creq)
struct connect_multi_state *multi = talloc_get_type(result->private_data,
struct connect_multi_state);
NTSTATUS status;
- multi->num_connects_recv++;
status = socket_connect_recv(creq);
+ if (multi->ex) {
+ struct tevent_req *subreq;
+
+ subreq = multi->ex->establish_send(state,
+ result->event_ctx,
+ state->sock,
+ state->addr,
+ multi->ex->private_data);
+ if (composite_nomem(subreq, result)) return;
+ tevent_req_set_callback(subreq, continue_one_ex, state);
+ return;
+ }
+
+ multi->num_connects_recv++;
+
+ if (NT_STATUS_IS_OK(status)) {
+ multi->sock = talloc_steal(multi, state->sock);
+ multi->result_port = state->addr->port;
+ }
+
+ talloc_free(state);
+
+ if (NT_STATUS_IS_OK(status) ||
+ multi->num_connects_recv == (multi->num_address * multi->num_ports)) {
+ result->status = status;
+ composite_done(result);
+ return;
+ }
+
+ /* try the next port */
+ connect_multi_next_socket(result);
+}
+
+/*
+ one of our multi->ex->establish_send() calls hash finished. If it got a
+ connection or there are none left then we are done
+*/
+static void continue_one_ex(struct tevent_req *subreq)
+{
+ struct connect_one_state *state =
+ tevent_req_callback_data(subreq,
+ struct connect_one_state);
+ struct composite_context *result = state->result;
+ struct connect_multi_state *multi =
+ talloc_get_type_abort(result->private_data,
+ struct connect_multi_state);
+ NTSTATUS status;
+ multi->num_connects_recv++;
+
+ status = multi->ex->establish_recv(subreq);
+ TALLOC_FREE(subreq);
+
if (NT_STATUS_IS_OK(status)) {
multi->sock = talloc_steal(multi, state->sock);
multi->result_port = state->addr->port;
@@ -250,7 +307,7 @@ static void continue_one(struct composite_context *creq)
/*
async recv routine for socket_connect_multi()
*/
-_PUBLIC_ NTSTATUS socket_connect_multi_recv(struct composite_context *ctx,
+_PUBLIC_ NTSTATUS socket_connect_multi_ex_recv(struct composite_context *ctx,
TALLOC_CTX *mem_ctx,
struct socket_context **sock,
uint16_t *port)
@@ -267,6 +324,55 @@ _PUBLIC_ NTSTATUS socket_connect_multi_recv(struct composite_context *ctx,
return status;
}
+NTSTATUS socket_connect_multi_ex(TALLOC_CTX *mem_ctx,
+ const char *server_address,
+ int num_server_ports, uint16_t *server_ports,
+ struct resolve_context *resolve_ctx,
+ struct tevent_context *event_ctx,
+ struct socket_connect_multi_ex *ex,
+ struct socket_context **result,
+ uint16_t *result_port)
+{
+ struct composite_context *ctx =
+ socket_connect_multi_ex_send(mem_ctx, server_address,
+ num_server_ports, server_ports,
+ resolve_ctx,
+ event_ctx,
+ ex);
+ return socket_connect_multi_ex_recv(ctx, mem_ctx, result, result_port);
+}
+
+/*
+ setup an async socket_connect, with multiple ports
+*/
+_PUBLIC_ struct composite_context *socket_connect_multi_send(
+ TALLOC_CTX *mem_ctx,
+ const char *server_name,
+ int num_server_ports,
+ uint16_t *server_ports,
+ struct resolve_context *resolve_ctx,
+ struct tevent_context *event_ctx)
+{
+ return socket_connect_multi_ex_send(mem_ctx,
+ server_name,
+ num_server_ports,
+ server_ports,
+ resolve_ctx,
+ event_ctx,
+ NULL); /* ex */
+}
+
+/*
+ async recv routine for socket_connect_multi()
+ */
+_PUBLIC_ NTSTATUS socket_connect_multi_recv(struct composite_context *ctx,
+ TALLOC_CTX *mem_ctx,
+ struct socket_context **sock,
+ uint16_t *port)
+{
+ return socket_connect_multi_ex_recv(ctx, mem_ctx, sock, port);
+}
+
NTSTATUS socket_connect_multi(TALLOC_CTX *mem_ctx,
const char *server_address,
int num_server_ports, uint16_t *server_ports,
@@ -275,10 +381,13 @@ NTSTATUS socket_connect_multi(TALLOC_CTX *mem_ctx,
struct socket_context **result,
uint16_t *result_port)
{
- struct composite_context *ctx =
- socket_connect_multi_send(mem_ctx, server_address,
- num_server_ports, server_ports,
- resolve_ctx,
- event_ctx);
- return socket_connect_multi_recv(ctx, mem_ctx, result, result_port);
+ return socket_connect_multi_ex(mem_ctx,
+ server_address,
+ num_server_ports,
+ server_ports,
+ resolve_ctx,
+ event_ctx,
+ NULL, /* ex */
+ result,
+ result_port);
}
diff --git a/source4/lib/socket/socket.h b/source4/lib/socket/socket.h
index e00b61ba6c..403a723edb 100644
--- a/source4/lib/socket/socket.h
+++ b/source4/lib/socket/socket.h
@@ -202,6 +202,34 @@ NTSTATUS socket_connect_ev(struct socket_context *sock,
uint32_t flags,
struct tevent_context *ev);
+struct socket_connect_multi_ex {
+ void *private_data;
+ struct tevent_req *(*establish_send)(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct socket_context *sock,
+ struct socket_address *addr,
+ void *private_data);
+ NTSTATUS (*establish_recv)(struct tevent_req *req);
+};
+struct composite_context *socket_connect_multi_ex_send(TALLOC_CTX *mem_ctx,
+ const char *server_address,
+ int num_server_ports,
+ uint16_t *server_ports,
+ struct resolve_context *resolve_ctx,
+ struct tevent_context *event_ctx,
+ struct socket_connect_multi_ex *ex);
+NTSTATUS socket_connect_multi_ex_recv(struct composite_context *ctx,
+ TALLOC_CTX *mem_ctx,
+ struct socket_context **result,
+ uint16_t *port);
+NTSTATUS socket_connect_multi_ex(TALLOC_CTX *mem_ctx, const char *server_address,
+ int num_server_ports, uint16_t *server_ports,
+ struct resolve_context *resolve_ctx,
+ struct tevent_context *event_ctx,
+ struct socket_connect_multi_ex *ex,
+ struct socket_context **result,
+ uint16_t *port);
+
struct composite_context *socket_connect_multi_send(TALLOC_CTX *mem_ctx,
const char *server_address,
int num_server_ports,
generated by cgit (git 2.34.1) at 2024-11-25 11:31:02 +0000