#ifndef SAMBA_DCERPC_SERVER_H
#define SAMBA_DCERPC_SERVER_H
-#include "core.h"
-#include "librpc/gen_ndr/misc.h"
+#include "librpc/gen_ndr/server_id.h"
#include "librpc/rpc/dcerpc.h"
#include "librpc/ndr/libndr.h"
struct ndr_syntax_id syntax_id;
/* this function is called when the client binds to this interface */
- NTSTATUS (*bind)(struct dcesrv_call_state *, const struct dcesrv_interface *);
+ NTSTATUS (*bind)(struct dcesrv_call_state *, const struct dcesrv_interface *, uint32_t if_version);
/* this function is called when the client disconnects the endpoint */
void (*unbind)(struct dcesrv_connection_context *, const struct dcesrv_interface *);
NTSTATUS (*ndr_push)(struct dcesrv_call_state *, TALLOC_CTX *, struct ndr_push *, const void *);
/* for any private use by the interface code */
- const void *private;
+ const void *private_data;
+
+ uint64_t flags;
};
+#define DCESRV_INTERFACE_FLAGS_HANDLES_NOT_USED 0x00000001
+
enum dcesrv_call_list {
DCESRV_LIST_NONE,
DCESRV_LIST_CALL_LIST,
DCESRV_LIST_PENDING_CALL_LIST
};
+struct data_blob_list_item {
+ struct data_blob_list_item *prev,*next;
+ DATA_BLOB blob;
+};
+
/* the state of an ongoing dcerpc call */
struct dcesrv_call_state {
struct dcesrv_call_state *next, *prev;
struct dcesrv_connection_context *context;
struct ncacn_packet pkt;
+ /*
+ * Used during async bind/alter_context.
+ */
+ struct ncacn_packet ack_pkt;
+
/*
which list this request is in, if any
*/
*/
#define DCESRV_CALL_STATE_FLAG_ASYNC (1<<0)
#define DCESRV_CALL_STATE_FLAG_MAY_ASYNC (1<<1)
+#define DCESRV_CALL_STATE_FLAG_MULTIPLEXED (1<<3)
+#define DCESRV_CALL_STATE_FLAG_PROCESS_PENDING_CALL (1<<4)
uint32_t state_flags;
/* the time the request arrived in the server */
struct timeval time;
/* the backend can use this event context for async replies */
- struct event_context *event_ctx;
+ struct tevent_context *event_ctx;
/* the message_context that will be used for async replies */
- struct messaging_context *msg_ctx;
+ struct imessaging_context *msg_ctx;
/* this is the pointer to the allocated function struct */
void *r;
/* this is used by the boilerplate code to generate DCERPC faults */
uint32_t fault_code;
+
+ /* the reason why we terminate the connection after sending a response */
+ const char *terminate_reason;
+
+ /* temporary auth_info fields */
+ struct dcerpc_auth in_auth_info;
+ struct dcerpc_auth _out_auth_info;
+ struct dcerpc_auth *out_auth_info;
};
+/*
+* DCERPC Handles
+* --------------
+* The various handles that are used in the RPC servers should be
+* created and fetch using the dcesrv_handle_* functions.
+*
+* Use
+* dcesrv_handle_new(struct dcesrv_connection \*, uint8 handle_type)
+* to obtain a new handle of the specified type. Handle types are
+* unique within each pipe.
+*
+* The handle can later be fetched again using:
+*
+* struct dcesrv_handle *dcesrv_handle_fetch(
+* struct dcesrv_connection *dce_conn,
+* struct policy_handle *p,
+* uint8 handle_type)
+*
+* and destroyed by:
+*
+* dcesrv_handle_destroy(struct dcesrv_handle *).
+*
+* User data should be stored in the 'data' member of the dcesrv_handle
+* struct.
+*/
+
#define DCESRV_HANDLE_ANY 255
/* a dcerpc handle in internal format */
struct dcesrv_handle {
struct dcesrv_handle *next, *prev;
- struct dcesrv_connection_context *context;
+ struct dcesrv_assoc_group *assoc_group;
struct policy_handle wire_handle;
+ struct dom_sid *sid;
+ const struct dcesrv_interface *iface;
void *data;
};
/* hold the authentication state information */
struct dcesrv_auth {
- struct dcerpc_auth *auth_info;
+ enum dcerpc_AuthType auth_type;
+ enum dcerpc_AuthLevel auth_level;
+ uint32_t auth_context_id;
struct gensec_security *gensec_security;
struct auth_session_info *session_info;
NTSTATUS (*session_key)(struct dcesrv_connection *, DATA_BLOB *session_key);
+ bool client_hdr_signing;
+ bool hdr_signing;
+ bool auth_finished;
+ bool auth_invalid;
};
struct dcesrv_connection_context {
struct dcesrv_connection_context *next, *prev;
- uint32_t context_id;
+ uint16_t context_id;
/* the connection this is on */
struct dcesrv_connection *conn;
const struct dcesrv_interface *iface;
/* private data for the interface implementation */
- void *private;
+ void *private_data;
- /* current rpc handles - this is really the wrong scope for
- them, but it will do for now */
- struct dcesrv_handle *handles;
+ /*
+ * the minimum required auth level for this interface
+ */
+ enum dcerpc_AuthLevel min_auth_level;
+ bool allow_connect;
+
+ /* the negotiated transfer syntax */
+ struct ndr_syntax_id transfer_syntax;
};
/* the state associated with a dcerpc server connection */
struct dcesrv_connection {
+ /* for the broken_connections DLIST */
+ struct dcesrv_connection *prev, *next;
+
/* the top level context for this server */
struct dcesrv_context *dce_ctx;
struct dcesrv_call_state *call_list;
/* the maximum size the client wants to receive */
- uint32_t cli_max_recv_frag;
+ uint16_t max_recv_frag;
+ uint16_t max_xmit_frag;
DATA_BLOB partial_input;
- /* the current authentication state */
- struct dcesrv_auth auth_state;
-
/* the event_context that will be used for this connection */
- struct event_context *event_ctx;
+ struct tevent_context *event_ctx;
/* the message_context that will be used for this connection */
- struct messaging_context *msg_ctx;
+ struct imessaging_context *msg_ctx;
/* the server_id that will be used for this connection */
struct server_id server_id;
- /* the transport level session key */
- DATA_BLOB transport_session_key;
+ /* is this connection pending termination? If so, why? */
+ const char *terminate;
- bool processing;
+ const char *packet_log_dir;
/* this is the default state_flags for dcesrv_call_state structs */
uint32_t state_flags;
struct {
void *private_data;
void (*report_output_data)(struct dcesrv_connection *);
- struct socket_address *(*get_my_addr)(struct dcesrv_connection *, TALLOC_CTX *mem_ctx);
- struct socket_address *(*get_peer_addr)(struct dcesrv_connection *, TALLOC_CTX *mem_ctx);
} transport;
+
+ struct tstream_context *stream;
+ struct tevent_queue *send_queue;
+
+ const struct tsocket_address *local_address;
+ const struct tsocket_address *remote_address;
+
+ /* the current authentication state */
+ struct dcesrv_auth auth_state;
+
+ /*
+ * remember which pdu types are allowed
+ */
+ bool allow_bind;
+ bool allow_auth3;
+ bool allow_alter;
+ bool allow_request;
+
+ /* the association group the connection belongs to */
+ struct dcesrv_assoc_group *assoc_group;
+
+ /* The maximum total payload of reassembled request pdus */
+ size_t max_total_request_size;
+
+ /*
+ * Our preferred transfer syntax.
+ */
+ const struct ndr_syntax_id *preferred_transfer;
+
+ /* the negotiated bind time features */
+ uint16_t bind_time_features;
+
+ /*
+ * This is used to block the connection during
+ * pending authentication.
+ */
+ struct tevent_req *(*wait_send)(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ void *private_data);
+ NTSTATUS (*wait_recv)(struct tevent_req *req);
+ void *wait_private;
};
};
+/* one association groups */
+struct dcesrv_assoc_group {
+ /* the wire id */
+ uint32_t id;
+
+ /* list of handles in this association group */
+ struct dcesrv_handle *handles;
+
+ /* parent context */
+ struct dcesrv_context *dce_ctx;
+
+ /* Remote association group ID (if proxied) */
+ uint32_t proxied_id;
+};
+
/* server-wide context information for the dcerpc server */
struct dcesrv_context {
+ /*
+ * The euid at startup time.
+ *
+ * This is required for DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM
+ */
+ uid_t initial_euid;
+
/* the list of endpoints that have registered
* by the configured endpoint servers
*/
struct dcesrv_if_list *next, *prev;
struct dcesrv_interface iface;
} *interface_list;
+
+ /*
+ * Should this service be run in a single process (so far only
+ * NETLOGON is not run in a single process)
+ */
+ bool use_single_process;
} *endpoint_list;
+
+ /* loadparm context to use for this connection */
+ struct loadparm_context *lp_ctx;
+
+ struct idr_context *assoc_groups_idr;
+
+ struct dcesrv_connection *broken_connections;
};
/* this structure is used by modules to determine the size of some critical types */
struct model_ops;
-#include "rpc_server/dcerpc_server_proto.h"
+NTSTATUS dcesrv_interface_register(struct dcesrv_context *dce_ctx,
+ const char *ep_name,
+ const struct dcesrv_interface *iface,
+ const struct security_descriptor *sd);
+NTSTATUS dcerpc_register_ep_server(const struct dcesrv_endpoint_server *ep_server);
+NTSTATUS dcesrv_init_context(TALLOC_CTX *mem_ctx,
+ struct loadparm_context *lp_ctx,
+ const char **endpoint_servers, struct dcesrv_context **_dce_ctx);
+NTSTATUS dcesrv_endpoint_connect(struct dcesrv_context *dce_ctx,
+ TALLOC_CTX *mem_ctx,
+ const struct dcesrv_endpoint *ep,
+ struct auth_session_info *session_info,
+ struct tevent_context *event_ctx,
+ struct imessaging_context *msg_ctx,
+ struct server_id server_id,
+ uint32_t state_flags,
+ struct dcesrv_connection **_p);
+
+NTSTATUS dcesrv_reply(struct dcesrv_call_state *call);
+struct dcesrv_handle *dcesrv_handle_new(struct dcesrv_connection_context *context,
+ uint8_t handle_type);
+
+struct dcesrv_handle *dcesrv_handle_fetch(
+ struct dcesrv_connection_context *context,
+ struct policy_handle *p,
+ uint8_t handle_type);
+
+const struct tsocket_address *dcesrv_connection_get_local_address(struct dcesrv_connection *conn);
+const struct tsocket_address *dcesrv_connection_get_remote_address(struct dcesrv_connection *conn);
+
+NTSTATUS dcesrv_fetch_session_key(struct dcesrv_connection *p, DATA_BLOB *session_key);
+
+/* a useful macro for generating a RPC fault in the backend code */
+#define DCESRV_FAULT(code) do { \
+ dce_call->fault_code = code; \
+ return r->out.result; \
+} while(0)
+
+/* a useful macro for generating a RPC fault in the backend code */
+#define DCESRV_FAULT_VOID(code) do { \
+ dce_call->fault_code = code; \
+ return; \
+} while(0)
+
+/* a useful macro for checking the validity of a dcerpc policy handle
+ and giving the right fault code if invalid */
+#define DCESRV_CHECK_HANDLE(h) do {if (!(h)) DCESRV_FAULT(DCERPC_FAULT_CONTEXT_MISMATCH); } while (0)
+
+/* this checks for a valid policy handle, and gives a fault if an
+ invalid handle or retval if the handle is of the
+ wrong type */
+#define DCESRV_PULL_HANDLE_RETVAL(h, inhandle, t, retval) do { \
+ (h) = dcesrv_handle_fetch(dce_call->context, (inhandle), DCESRV_HANDLE_ANY); \
+ DCESRV_CHECK_HANDLE(h); \
+ if ((t) != DCESRV_HANDLE_ANY && (h)->wire_handle.handle_type != (t)) { \
+ return retval; \
+ } \
+} while (0)
+
+/* this checks for a valid policy handle and gives a dcerpc fault
+ if its the wrong type of handle */
+#define DCESRV_PULL_HANDLE_FAULT(h, inhandle, t) do { \
+ (h) = dcesrv_handle_fetch(dce_call->context, (inhandle), t); \
+ DCESRV_CHECK_HANDLE(h); \
+} while (0)
+
+#define DCESRV_PULL_HANDLE(h, inhandle, t) DCESRV_PULL_HANDLE_RETVAL(h, inhandle, t, NT_STATUS_INVALID_HANDLE)
+#define DCESRV_PULL_HANDLE_WERR(h, inhandle, t) DCESRV_PULL_HANDLE_RETVAL(h, inhandle, t, WERR_INVALID_HANDLE)
+
+NTSTATUS dcesrv_add_ep(struct dcesrv_context *dce_ctx,
+ struct loadparm_context *lp_ctx,
+ struct dcesrv_endpoint *e,
+ struct tevent_context *event_ctx,
+ const struct model_ops *model_ops,
+ void *process_context);
+
+/**
+ * retrieve credentials from a dce_call
+ */
+_PUBLIC_ struct cli_credentials *dcesrv_call_credentials(struct dcesrv_call_state *dce_call);
+
+/**
+ * returns true if this is an authenticated call
+ */
+_PUBLIC_ bool dcesrv_call_authenticated(struct dcesrv_call_state *dce_call);
+
+/**
+ * retrieve account_name for a dce_call
+ */
+_PUBLIC_ const char *dcesrv_call_account_name(struct dcesrv_call_state *dce_call);
+
+/**
+ * retrieve session_info from a dce_call
+ */
+_PUBLIC_ struct auth_session_info *dcesrv_call_session_info(struct dcesrv_call_state *dce_call);
+
+_PUBLIC_ NTSTATUS dcesrv_interface_bind_require_integrity(struct dcesrv_call_state *dce_call,
+ const struct dcesrv_interface *iface);
+_PUBLIC_ NTSTATUS dcesrv_interface_bind_require_privacy(struct dcesrv_call_state *dce_call,
+ const struct dcesrv_interface *iface);
+_PUBLIC_ NTSTATUS dcesrv_interface_bind_reject_connect(struct dcesrv_call_state *dce_call,
+ const struct dcesrv_interface *iface);
+_PUBLIC_ NTSTATUS dcesrv_interface_bind_allow_connect(struct dcesrv_call_state *dce_call,
+ const struct dcesrv_interface *iface);
#endif /* SAMBA_DCERPC_SERVER_H */
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