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-rw-r--r--source4/librpc/rpc/dcerpc_auth.c81
1 files changed, 49 insertions, 32 deletions
diff --git a/source4/librpc/rpc/dcerpc_auth.c b/source4/librpc/rpc/dcerpc_auth.c
index 04f3d9b436..c6b718e208 100644
--- a/source4/librpc/rpc/dcerpc_auth.c
+++ b/source4/librpc/rpc/dcerpc_auth.c
@@ -27,13 +27,13 @@
#include "auth/gensec/gensec.h"
#include "librpc/rpc/dcerpc.h"
+
/*
- do a non-athenticated dcerpc bind
+ Send request to do a non-authenticated dcerpc bind
*/
-
struct composite_context *dcerpc_bind_auth_none_send(TALLOC_CTX *mem_ctx,
struct dcerpc_pipe *p,
- const struct dcerpc_interface_table *table)
+ const struct dcerpc_interface_table *table)
{
struct dcerpc_syntax_id syntax;
struct dcerpc_syntax_id transfer_syntax;
@@ -58,19 +58,29 @@ struct composite_context *dcerpc_bind_auth_none_send(TALLOC_CTX *mem_ctx,
return dcerpc_bind_send(p, mem_ctx, &syntax, &transfer_syntax);
}
+
+/*
+ Receive result of a non-authenticated dcerpc bind
+*/
NTSTATUS dcerpc_bind_auth_none_recv(struct composite_context *ctx)
{
return dcerpc_bind_recv(ctx);
}
+
+/*
+ Perform sync non-authenticated dcerpc bind
+*/
NTSTATUS dcerpc_bind_auth_none(struct dcerpc_pipe *p,
const struct dcerpc_interface_table *table)
{
struct composite_context *ctx;
+
ctx = dcerpc_bind_auth_none_send(p, p, table);
return dcerpc_bind_auth_none_recv(ctx);
}
+
struct bind_auth_state {
struct dcerpc_pipe *pipe;
DATA_BLOB credentials;
@@ -82,12 +92,14 @@ static void bind_auth_recv_alter(struct composite_context *creq);
static void bind_auth_next_step(struct composite_context *c)
{
- struct bind_auth_state *state =
- talloc_get_type(c->private_data, struct bind_auth_state);
- struct dcerpc_security *sec = &state->pipe->conn->security_state;
+ struct bind_auth_state *state;
+ struct dcerpc_security *sec;
struct composite_context *creq;
BOOL more_processing = False;
+ state = talloc_get_type(c->private_data, struct bind_auth_state);
+ sec = &state->pipe->conn->security_state;
+
/* The status value here, from GENSEC is vital to the security
* of the system. Even if the other end accepts, if GENSEC
* claims 'MORE_PROCESSING_REQUIRED' then you must keep
@@ -120,6 +132,7 @@ static void bind_auth_next_step(struct composite_context *c)
/* NO reply expected, so just send it */
c->status = dcerpc_auth3(state->pipe->conn, state);
if (!composite_is_ok(c)) return;
+
composite_done(c);
return;
}
@@ -129,14 +142,16 @@ static void bind_auth_next_step(struct composite_context *c)
creq = dcerpc_alter_context_send(state->pipe, state,
&state->pipe->syntax,
&state->pipe->transfer_syntax);
+ if (composite_nomem(creq, c)) return;
+
composite_continue(c, creq, bind_auth_recv_alter, c);
}
+
static void bind_auth_recv_alter(struct composite_context *creq)
{
- struct composite_context *c =
- talloc_get_type(creq->async.private_data,
- struct composite_context);
+ struct composite_context *c = talloc_get_type(creq->async.private_data,
+ struct composite_context);
c->status = dcerpc_alter_context_recv(creq);
if (!composite_is_ok(c)) return;
@@ -144,13 +159,13 @@ static void bind_auth_recv_alter(struct composite_context *creq)
bind_auth_next_step(c);
}
+
static void bind_auth_recv_bindreply(struct composite_context *creq)
{
- struct composite_context *c =
- talloc_get_type(creq->async.private_data,
- struct composite_context);
- struct bind_auth_state *state =
- talloc_get_type(c->private_data, struct bind_auth_state);
+ struct composite_context *c = talloc_get_type(creq->async.private_data,
+ struct composite_context);
+ struct bind_auth_state *state = talloc_get_type(c->private_data,
+ struct bind_auth_state);
c->status = dcerpc_bind_recv(creq);
if (!composite_is_ok(c)) return;
@@ -165,8 +180,9 @@ static void bind_auth_recv_bindreply(struct composite_context *creq)
bind_auth_next_step(c);
}
+
/**
- Bind to a DCE/RPC pipe, async
+ Bind to a DCE/RPC pipe, send async request
@param mem_ctx TALLOC_CTX for the allocation of the composite_context
@param p The dcerpc_pipe to bind (must already be connected)
@param table The interface table to use (the DCE/RPC bind both selects and interface and authenticates)
@@ -190,14 +206,12 @@ struct composite_context *dcerpc_bind_auth_send(TALLOC_CTX *mem_ctx,
struct dcerpc_syntax_id syntax, transfer_syntax;
+ /* composite context allocation and setup */
c = talloc_zero(mem_ctx, struct composite_context);
if (c == NULL) return NULL;
state = talloc(c, struct bind_auth_state);
- if (state == NULL) {
- c->status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
+ if (composite_nomem(state, c)) return c;
c->state = COMPOSITE_STATE_IN_PROGRESS;
c->private_data = state;
@@ -255,10 +269,7 @@ struct composite_context *dcerpc_bind_auth_send(TALLOC_CTX *mem_ctx,
}
sec->auth_info = talloc(p, struct dcerpc_auth);
- if (sec->auth_info == NULL) {
- c->status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
+ if (composite_nomem(sec->auth_info, c)) return c;
sec->auth_info->auth_type = auth_type;
sec->auth_info->auth_level = auth_level,
@@ -298,24 +309,28 @@ struct composite_context *dcerpc_bind_auth_send(TALLOC_CTX *mem_ctx,
/* The first request always is a dcerpc_bind. The subsequent ones
* depend on gensec results */
creq = dcerpc_bind_send(p, state, &syntax, &transfer_syntax);
- if (creq == NULL) {
- c->status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
+ if (composite_nomem(creq, c)) return c;
- creq->async.fn = bind_auth_recv_bindreply;
- creq->async.private_data = c;
+ composite_continue(c, creq, bind_auth_recv_bindreply, c);
return c;
-
- failed:
+
+failed:
composite_error(c, c->status);
return c;
}
+
+/**
+ Bind to a DCE/RPC pipe, receive result
+ @param creq A composite context describing state of async call
+ @retval NTSTATUS code
+*/
+
NTSTATUS dcerpc_bind_auth_recv(struct composite_context *creq)
{
NTSTATUS result = composite_wait(creq);
- struct bind_auth_state *state = talloc_get_type(creq->private_data, struct bind_auth_state);
+ struct bind_auth_state *state = talloc_get_type(creq->private_data,
+ struct bind_auth_state);
if (NT_STATUS_IS_OK(result)) {
/*
@@ -329,6 +344,7 @@ NTSTATUS dcerpc_bind_auth_recv(struct composite_context *creq)
return result;
}
+
/**
Perform a GENSEC authenticated bind to a DCE/RPC pipe, sync
@param p The dcerpc_pipe to bind (must already be connected)
@@ -339,6 +355,7 @@ NTSTATUS dcerpc_bind_auth_recv(struct composite_context *creq)
@param service The service (used by Kerberos to select the service principal to contact)
@retval NTSTATUS status code
*/
+
NTSTATUS dcerpc_bind_auth(struct dcerpc_pipe *p,
const struct dcerpc_interface_table *table,
struct cli_credentials *credentials,
generated by cgit (git 2.34.1) at 2024-12-12 05:04:01 +0000