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-rw-r--r--source4/librpc/rpc/dcerpc_connect.c35
1 files changed, 30 insertions, 5 deletions
diff --git a/source4/librpc/rpc/dcerpc_connect.c b/source4/librpc/rpc/dcerpc_connect.c
index 35a0602cbf..03a408de79 100644
--- a/source4/librpc/rpc/dcerpc_connect.c
+++ b/source4/librpc/rpc/dcerpc_connect.c
@@ -44,7 +44,7 @@ struct pipe_np_smb_state {
/*
- Stage 3 of ncacn_np_smb: Named pipe opened (?)
+ Stage 3 of ncacn_np_smb: Named pipe opened (or not)
*/
void continue_pipe_open_smb(struct composite_context *ctx)
{
@@ -52,7 +52,8 @@ void continue_pipe_open_smb(struct composite_context *ctx)
struct composite_context);
struct pipe_np_smb_state *s = talloc_get_type(c->private_data,
struct pipe_np_smb_state);
- /* receive result of named pipe open request */
+
+ /* receive result of named pipe open request on smb */
c->status = dcerpc_pipe_open_smb_recv(ctx);
if (!NT_STATUS_IS_OK(c->status)) {
DEBUG(0,("Failed to open pipe %s - %s\n", s->io.pipe_name, nt_errstr(c->status)));
@@ -202,6 +203,9 @@ struct pipe_np_smb2_state {
};
+/*
+ Stage 3 of ncacn_np_smb: Named pipe opened (or not)
+*/
void continue_pipe_open_smb2(struct composite_context *ctx)
{
struct composite_context *c = talloc_get_type(ctx->async.private_data,
@@ -209,6 +213,7 @@ void continue_pipe_open_smb2(struct composite_context *ctx)
struct pipe_np_smb2_state *s = talloc_get_type(c->private_data,
struct pipe_np_smb2_state);
+ /* receive result of named pipe open request on smb2 */
c->status = dcerpc_pipe_open_smb2_recv(ctx);
if (!NT_STATUS_IS_OK(c->status)) {
DEBUG(0,("Failed to open pipe %s - %s\n", s->io.pipe_name, nt_errstr(c->status)));
@@ -220,6 +225,9 @@ void continue_pipe_open_smb2(struct composite_context *ctx)
}
+/*
+ Stage 2 of ncacn_np_smb2: Open a named pipe after successful smb2 connection
+*/
void continue_smb2_connect(struct composite_context *ctx)
{
struct composite_context *open_req;
@@ -228,15 +236,18 @@ void continue_smb2_connect(struct composite_context *ctx)
struct pipe_np_smb2_state *s = talloc_get_type(c->private_data,
struct pipe_np_smb2_state);
+ /* receive result of smb2 connect request */
c->status = smb2_connect_recv(ctx, c, &s->tree);
if (!NT_STATUS_IS_OK(c->status)) {
DEBUG(0,("Failed to connect to %s - %s\n", s->io.binding->host, nt_errstr(c->status)));
composite_error(c, c->status);
return;
}
-
+
+ /* prepare named pipe open parameters */
s->io.pipe_name = s->io.binding->endpoint;
+ /* send named pipe open request */
open_req = dcerpc_pipe_open_smb2_send(s->io.pipe->conn, s->tree, s->io.pipe_name);
if (open_req == NULL) {
composite_error(c, NT_STATUS_NO_MEMORY);
@@ -247,6 +258,10 @@ void continue_smb2_connect(struct composite_context *ctx)
}
+/*
+ Initiate async open of a rpc connection request on SMB2 using
+ the binding structure to determine the endpoint and options
+*/
struct composite_context *dcerpc_pipe_connect_ncacn_np_smb2_send(TALLOC_CTX *mem_ctx,
struct dcerpc_pipe_connect *io)
{
@@ -254,6 +269,7 @@ struct composite_context *dcerpc_pipe_connect_ncacn_np_smb2_send(TALLOC_CTX *mem
struct pipe_np_smb2_state *s;
struct composite_context *conn_req;
+ /* composite context allocation and setup */
c = talloc_zero(mem_ctx, struct composite_context);
if (c == NULL) return NULL;
@@ -269,6 +285,10 @@ struct composite_context *dcerpc_pipe_connect_ncacn_np_smb2_send(TALLOC_CTX *mem
s->io = *io;
+ /*
+ * provide proper credentials - user supplied or anonymous in case this is
+ * schannel connection
+ */
if (s->io.binding->flags & DCERPC_SCHANNEL) {
s->io.creds = cli_credentials_init(mem_ctx);
if (s->io.creds) {
@@ -280,6 +300,7 @@ struct composite_context *dcerpc_pipe_connect_ncacn_np_smb2_send(TALLOC_CTX *mem
cli_credentials_guess(s->io.creds);
}
+ /* send smb2 connect request */
conn_req = smb2_connect_send(mem_ctx, s->io.binding->host, "IPC$", s->io.creds,
c->event_ctx);
if (conn_req == NULL) {
@@ -294,6 +315,9 @@ done:
}
+/*
+ Receive result of a rpc connection to a rpc pipe on SMB2
+*/
NTSTATUS dcerpc_pipe_connect_ncacn_np_smb2_recv(struct composite_context *c)
{
NTSTATUS status = composite_wait(c);
@@ -303,8 +327,9 @@ NTSTATUS dcerpc_pipe_connect_ncacn_np_smb2_recv(struct composite_context *c)
}
-/* open a rpc connection to a rpc pipe on SMB2 using the binding
- structure to determine the endpoint and options */
+/*
+ Sync version of a rpc connection to a rpc pipe on SMB2
+*/
NTSTATUS dcerpc_pipe_connect_ncacn_np_smb2(TALLOC_CTX *mem_ctx,
struct dcerpc_pipe_connect *io)
{