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authorSimo Sorce <idra@samba.org>2010-06-22 18:03:55 -0400
committerAndreas Schneider <asn@samba.org>2010-09-15 12:53:42 +0200
commit344260d03e9a50bce051e180df75f696e2478228 (patch)
tree6f7dee16638d4314d77aec11fdbbda03488e67d7
parente7c4555b7caf379af38403fe497eea58415b51ed (diff)
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s3-rpc_server: Added support for internal connections to external daemons.
Signed-off-by: Andreas Schneider <asn@samba.org>
-rw-r--r--source3/rpc_server/srv_pipe_hnd.c117
1 files changed, 115 insertions, 2 deletions
diff --git a/source3/rpc_server/srv_pipe_hnd.c b/source3/rpc_server/srv_pipe_hnd.c
index 4329efbc7a..df53489383 100644
--- a/source3/rpc_server/srv_pipe_hnd.c
+++ b/source3/rpc_server/srv_pipe_hnd.c
@@ -904,6 +904,95 @@ NTSTATUS np_read_recv(struct tevent_req *req, ssize_t *nread,
return NT_STATUS_OK;
}
+
+static NTSTATUS rpc_pipe_open_external(TALLOC_CTX *mem_ctx,
+ const char *pipe_name,
+ const struct ndr_syntax_id *abstract_syntax,
+ struct auth_serversupplied_info *server_info,
+ struct rpc_pipe_client **_result)
+{
+ struct tsocket_address *local, *remote;
+ struct rpc_pipe_client *result = NULL;
+ struct np_proxy_state *proxy_state = NULL;
+ struct pipe_auth_data *auth;
+ NTSTATUS status;
+ int ret;
+
+ /* this is an internal connection, fake up ip addresses */
+ ret = tsocket_address_inet_from_strings(talloc_tos(), "ip",
+ NULL, 0, &local);
+ if (ret) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ ret = tsocket_address_inet_from_strings(talloc_tos(), "ip",
+ NULL, 0, &remote);
+ if (ret) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ proxy_state = make_external_rpc_pipe_p(mem_ctx, pipe_name,
+ local, remote, server_info);
+ if (!proxy_state) {
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ result = talloc_zero(mem_ctx, struct rpc_pipe_client);
+ if (result == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+
+ result->abstract_syntax = *abstract_syntax;
+ result->transfer_syntax = ndr_transfer_syntax;
+
+ result->desthost = get_myname(result);
+ result->srv_name_slash = talloc_asprintf_strupper_m(
+ result, "\\\\%s", result->desthost);
+ if ((result->desthost == NULL) || (result->srv_name_slash == NULL)) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+
+ result->max_xmit_frag = RPC_MAX_PDU_FRAG_LEN;
+ result->max_recv_frag = RPC_MAX_PDU_FRAG_LEN;
+
+ status = rpc_transport_tstream_init(result,
+ proxy_state->npipe,
+ proxy_state->read_queue,
+ proxy_state->write_queue,
+ &result->transport);
+ if (!NT_STATUS_IS_OK(status)) {
+ goto done;
+ }
+
+ result->auth = talloc_zero(result, struct pipe_auth_data);
+ if (!result->auth) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+ result->auth->auth_type = DCERPC_AUTH_TYPE_NONE;
+ result->auth->auth_level = DCERPC_AUTH_LEVEL_NONE;
+
+ status = rpccli_anon_bind_data(result, &auth);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Failed to initialize anonymous bind.\n"));
+ goto done;
+ }
+
+ status = rpc_pipe_bind(result, auth);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Failed to bind spoolss pipe.\n"));
+ goto done;
+ }
+done:
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(result);
+ }
+ TALLOC_FREE(proxy_state);
+ *_result = result;
+ return status;
+}
+
/**
* @brief Create a new RPC client context which uses a local dispatch function.
*
@@ -917,11 +1006,23 @@ NTSTATUS np_read_recv(struct tevent_req *req, ssize_t *nread,
NTSTATUS rpc_connect_spoolss_pipe(connection_struct *conn,
struct rpc_pipe_client **spoolss_pipe)
{
+ const char *server_type;
NTSTATUS status;
- /* TODO: check and handle disconnections */
+ DEBUG(10, ("Connecting to spoolss pipe.\n"));
+ *spoolss_pipe = NULL;
- if (!conn->spoolss_pipe) {
+ if (rpccli_is_connected(conn->spoolss_pipe)) {
+ *spoolss_pipe = conn->spoolss_pipe;
+ return NT_STATUS_OK;
+ } else {
+ TALLOC_FREE(conn->spoolss_pipe);
+ }
+
+ server_type = lp_parm_const_string(GLOBAL_SECTION_SNUM,
+ "rpc_server", "spoolss",
+ "embedded");
+ if (StrCaseCmp(server_type, "embedded") == 0) {
status = rpc_pipe_open_internal(conn,
&ndr_table_spoolss.syntax_id,
conn->server_info,
@@ -931,6 +1032,18 @@ NTSTATUS rpc_connect_spoolss_pipe(connection_struct *conn,
if (!NT_STATUS_IS_OK(status)) {
return status;
}
+ } else {
+ /* It would be nice to just use rpc_pipe_open_ncalrpc() but
+ * for now we need to use the special proxy setup to connect
+ * to spoolssd. */
+
+ status = rpc_pipe_open_external(conn, "spoolss",
+ &ndr_table_spoolss.syntax_id,
+ conn->server_info,
+ &conn->spoolss_pipe);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
}
*spoolss_pipe = conn->spoolss_pipe;