diff options
| -rw-r--r-- | source4/librpc/rpc/dcerpc_connect.c | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/source4/librpc/rpc/dcerpc_connect.c b/source4/librpc/rpc/dcerpc_connect.c index d98c296a3f..9af54740a2 100644 --- a/source4/librpc/rpc/dcerpc_connect.c +++ b/source4/librpc/rpc/dcerpc_connect.c @@ -43,16 +43,18 @@ struct pipe_np_smb_state { }; +/* + Stage 3 of ncacn_np_smb: Named pipe opened (?) +*/ void continue_pipe_open_smb(struct composite_context *ctx) { struct composite_context *c = talloc_get_type(ctx->async.private_data, 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 */ 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))); composite_error(c, c->status); return; @@ -61,7 +63,9 @@ void continue_pipe_open_smb(struct composite_context *ctx) composite_done(c); } - +/* + Stage 2 of ncacn_np_smb: Open a named pipe after successful smb connection +*/ void continue_smb_connect(struct composite_context *ctx) { struct composite_context *open_ctx; @@ -70,17 +74,19 @@ void continue_smb_connect(struct composite_context *ctx) struct pipe_np_smb_state *s = talloc_get_type(c->private_data, struct pipe_np_smb_state); + /* receive result of smb connect request */ c->status = smb_composite_connect_recv(ctx, c); 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->tree = s->conn.out.tree; s->io.pipe_name = s->io.binding->endpoint; + /* send named pipe open request */ open_ctx = dcerpc_pipe_open_smb_send(s->io.pipe->conn, s->tree, s->io.pipe_name); if (open_ctx == NULL) { composite_error(c, NT_STATUS_NO_MEMORY); @@ -91,8 +97,10 @@ void continue_smb_connect(struct composite_context *ctx) } -/* open a rpc connection to a rpc pipe on SMB using the binding - structure to determine the endpoint and options */ +/* + Initiate async open of a rpc connection to a rpc pipe on SMB using + the binding structure to determine the endpoint and options +*/ struct composite_context *dcerpc_pipe_connect_ncacn_np_smb_send(TALLOC_CTX *tmp_ctx, struct dcerpc_pipe_connect *io) { @@ -101,6 +109,7 @@ struct composite_context *dcerpc_pipe_connect_ncacn_np_smb_send(TALLOC_CTX *tmp_ struct composite_context *conn_req; struct smb_composite_connect *conn; + /* composite context allocation and setup */ c = talloc_zero(tmp_ctx, struct composite_context); if (c == NULL) return NULL; @@ -117,6 +126,8 @@ struct composite_context *dcerpc_pipe_connect_ncacn_np_smb_send(TALLOC_CTX *tmp_ s->io = *io; conn = &s->conn; + /* prepare smb connection parameters: we're connecting to IPC$ share on + remote rpc server */ conn->in.dest_host = s->io.binding->host; conn->in.port = 0; conn->in.called_name = strupper_talloc(tmp_ctx, s->io.binding->host); @@ -125,6 +136,10 @@ struct composite_context *dcerpc_pipe_connect_ncacn_np_smb_send(TALLOC_CTX *tmp_ conn->in.fallback_to_anonymous = False; conn->in.workgroup = lp_workgroup(); + /* + * provide proper credentials - user supplied or anonymous in case this is + * schannel connection + */ if (s->io.binding->flags & DCERPC_SCHANNEL) { struct cli_credentials *anon_creds; @@ -143,6 +158,7 @@ struct composite_context *dcerpc_pipe_connect_ncacn_np_smb_send(TALLOC_CTX *tmp_ s->conn.in.credentials = s->io.creds; } + /* send smb connect request */ conn_req = smb_composite_connect_send(conn, s->io.pipe->conn, s->io.pipe->conn->event_ctx); if (!conn_req) { composite_error(c, NT_STATUS_NO_MEMORY); @@ -156,6 +172,9 @@ done: } +/* + Receive result of a rpc connection to a rpc pipe on SMB +*/ NTSTATUS dcerpc_pipe_connect_ncacn_np_smb_recv(struct composite_context *c) { NTSTATUS status = composite_wait(c); @@ -165,6 +184,9 @@ NTSTATUS dcerpc_pipe_connect_ncacn_np_smb_recv(struct composite_context *c) } +/* + Sync version of a rpc connection to a rpc pipe on SMB +*/ NTSTATUS dcerpc_pipe_connect_ncacn_np_smb(TALLOC_CTX *tmp_ctx, struct dcerpc_pipe_connect *io) { |