s3-talloc Change TALLOC_ZERO_P() to talloc_zero()
[nivanova/samba-autobuild/.git] / source3 / rpc_server / rpc_ncacn_np.c
index 71ac69fe15308ed125240a5f77cc05a85dbe86e4..f14aae540d3118b6f6920182a7fc18c370eb93ba 100644 (file)
  */
 
 #include "includes.h"
+#include "rpc_client/cli_pipe.h"
 #include "rpc_server/srv_pipe_internal.h"
 #include "rpc_dce.h"
 #include "../libcli/named_pipe_auth/npa_tstream.h"
 #include "rpc_server/rpc_ncacn_np.h"
 #include "librpc/gen_ndr/netlogon.h"
+#include "librpc/gen_ndr/auth.h"
+#include "../auth/auth_sam_reply.h"
+#include "auth.h"
+#include "ntdomain.h"
+#include "../lib/tsocket/tsocket.h"
+#include "../lib/util/tevent_ntstatus.h"
+#include "rpc_contexts.h"
 
 #undef DBGC_CLASS
 #define DBGC_CLASS DBGC_RPC_SRV
 
-static int pipes_open;
-
 static struct pipes_struct *InternalPipes;
 
 /* TODO
@@ -97,11 +103,11 @@ int close_internal_rpc_pipe_hnd(struct pipes_struct *p)
 
        TALLOC_FREE(p->auth.auth_ctx);
 
-       free_pipe_rpc_context_internal( p->contexts );
-
        /* Free the handles database. */
        close_policy_by_pipe(p);
 
+       free_pipe_rpc_context_internal( p->contexts );
+
        DLIST_REMOVE(InternalPipes, p);
 
        ZERO_STRUCTP(p);
@@ -116,15 +122,16 @@ int close_internal_rpc_pipe_hnd(struct pipes_struct *p)
 struct pipes_struct *make_internal_rpc_pipe_p(TALLOC_CTX *mem_ctx,
                                              const struct ndr_syntax_id *syntax,
                                              struct client_address *client_id,
-                                             const struct auth_serversupplied_info *server_info,
+                                             const struct auth_serversupplied_info *session_info,
                                              struct messaging_context *msg_ctx)
 {
        struct pipes_struct *p;
+       struct pipe_rpc_fns *context_fns;
 
        DEBUG(4,("Create pipe requested %s\n",
                 get_pipe_name_from_syntax(talloc_tos(), syntax)));
 
-       p = TALLOC_ZERO_P(mem_ctx, struct pipes_struct);
+       p = talloc_zero(mem_ctx, struct pipes_struct);
 
        if (!p) {
                DEBUG(0,("ERROR! no memory for pipes_struct!\n"));
@@ -146,8 +153,8 @@ struct pipes_struct *make_internal_rpc_pipe_p(TALLOC_CTX *mem_ctx,
                return NULL;
        }
 
-       p->server_info = copy_serverinfo(p, server_info);
-       if (p->server_info == NULL) {
+       p->session_info = copy_serverinfo(p, session_info);
+       if (p->session_info == NULL) {
                DEBUG(0, ("open_rpc_pipe_p: copy_serverinfo failed\n"));
                close_policy_by_pipe(p);
                TALLOC_FREE(p);
@@ -162,10 +169,25 @@ struct pipes_struct *make_internal_rpc_pipe_p(TALLOC_CTX *mem_ctx,
 
        p->endian = RPC_LITTLE_ENDIAN;
 
-       p->syntax = *syntax;
+       p->transport = NCALRPC;
+
+       context_fns = SMB_MALLOC_P(struct pipe_rpc_fns);
+       if (context_fns == NULL) {
+               DEBUG(0,("malloc() failed!\n"));
+               return False;
+       }
+
+       context_fns->next = context_fns->prev = NULL;
+       context_fns->n_cmds = rpc_srv_get_pipe_num_cmds(syntax);
+       context_fns->cmds = rpc_srv_get_pipe_cmds(syntax);
+       context_fns->context_id = 0;
+       context_fns->syntax = *syntax;
 
-       DEBUG(4,("Created internal pipe %s (pipes_open=%d)\n",
-                get_pipe_name_from_syntax(talloc_tos(), syntax), pipes_open));
+       /* add to the list of open contexts */
+       DLIST_ADD(p->contexts, context_fns);
+
+       DEBUG(4,("Created internal pipe %s\n",
+                get_pipe_name_from_syntax(talloc_tos(), syntax)));
 
        talloc_set_destructor(p, close_internal_rpc_pipe_hnd);
 
@@ -178,8 +200,9 @@ static NTSTATUS rpcint_dispatch(struct pipes_struct *p,
                                const DATA_BLOB *in_data,
                                DATA_BLOB *out_data)
 {
-       uint32_t num_cmds = rpc_srv_get_pipe_num_cmds(&p->syntax);
-       const struct api_struct *cmds = rpc_srv_get_pipe_cmds(&p->syntax);
+       struct pipe_rpc_fns *fns = find_pipe_fns_by_context(p->contexts, 0);
+       uint32_t num_cmds = fns->n_cmds;
+       const struct api_struct *cmds = fns->cmds;
        uint32_t i;
        bool ok;
 
@@ -429,7 +452,7 @@ static NTSTATUS rpcint_binding_handle_ex(TALLOC_CTX *mem_ctx,
                        const struct ndr_syntax_id *abstract_syntax,
                        const struct ndr_interface_table *ndr_table,
                        struct client_address *client_id,
-                       const struct auth_serversupplied_info *server_info,
+                       const struct auth_serversupplied_info *session_info,
                        struct messaging_context *msg_ctx,
                        struct dcerpc_binding_handle **binding_handle)
 {
@@ -453,7 +476,7 @@ static NTSTATUS rpcint_binding_handle_ex(TALLOC_CTX *mem_ctx,
        hs->p = make_internal_rpc_pipe_p(hs,
                                         abstract_syntax,
                                         client_id,
-                                        server_info,
+                                        session_info,
                                         msg_ctx);
        if (hs->p == NULL) {
                TALLOC_FREE(h);
@@ -489,7 +512,7 @@ static NTSTATUS rpcint_binding_handle_ex(TALLOC_CTX *mem_ctx,
  *   status = rpcint_binding_handle(tmp_ctx,
  *                                  &ndr_table_winreg,
  *                                  p->client_id,
- *                                  p->server_info,
+ *                                  p->session_info,
  *                                  p->msg_ctx
  *                                  &winreg_binding);
  * @endcode
@@ -497,44 +520,40 @@ static NTSTATUS rpcint_binding_handle_ex(TALLOC_CTX *mem_ctx,
 NTSTATUS rpcint_binding_handle(TALLOC_CTX *mem_ctx,
                               const struct ndr_interface_table *ndr_table,
                               struct client_address *client_id,
-                              const struct auth_serversupplied_info *server_info,
+                              const struct auth_serversupplied_info *session_info,
                               struct messaging_context *msg_ctx,
                               struct dcerpc_binding_handle **binding_handle)
 {
        return rpcint_binding_handle_ex(mem_ctx, NULL, ndr_table, client_id,
-                                       server_info, msg_ctx, binding_handle);
+                                       session_info, msg_ctx, binding_handle);
 }
 
 /**
- * @brief Create a new RPC client context which uses a local dispatch function.
+ * @internal
+ *
+ * @brief Create a new RPC client context which uses a local transport.
+ *
+ * This creates a local transport. It is a shortcut to directly call the server
+ * functions and avoid marshalling.
+ * NOTE: this function should be used only by rpc_pipe_open_interface()
  *
  * @param[in]  mem_ctx  The memory context to use.
  *
  * @param[in]  abstract_syntax Normally the syntax_id of the autogenerated
  *                             ndr_table_<name>.
  *
- * @param[in]  dispatch The corresponding autogenerated dispatch function
- *                      rpc_<name>_dispatch.
- *
  * @param[in]  serversupplied_info The server supplied authentication function.
  *
+ * @param[in]  client_id The client address information.
+ *
+ * @param[in]  msg_ctx  The messaging context to use.
+ *
  * @param[out] presult  A pointer to store the connected rpc client pipe.
  *
  * @return              NT_STATUS_OK on success, a corresponding NT status if an
  *                      error occured.
- *
- * @code
- *   struct rpc_pipe_client *winreg_pipe;
- *   NTSTATUS status;
- *
- *   status = rpc_pipe_open_internal(tmp_ctx,
- *                                   &ndr_table_winreg.syntax_id,
- *                                   rpc_winreg_dispatch,
- *                                   p->server_info,
- *                                   &winreg_pipe);
- * @endcode
  */
-NTSTATUS rpc_pipe_open_internal(TALLOC_CTX *mem_ctx,
+static NTSTATUS rpc_pipe_open_internal(TALLOC_CTX *mem_ctx,
                                const struct ndr_syntax_id *abstract_syntax,
                                const struct auth_serversupplied_info *serversupplied_info,
                                struct client_address *client_id,
@@ -544,7 +563,7 @@ NTSTATUS rpc_pipe_open_internal(TALLOC_CTX *mem_ctx,
        struct rpc_pipe_client *result;
        NTSTATUS status;
 
-       result = TALLOC_ZERO_P(mem_ctx, struct rpc_pipe_client);
+       result = talloc_zero(mem_ctx, struct rpc_pipe_client);
        if (result == NULL) {
                return NT_STATUS_NO_MEMORY;
        }
@@ -587,14 +606,17 @@ struct np_proxy_state *make_external_rpc_pipe_p(TALLOC_CTX *mem_ctx,
                                const char *pipe_name,
                                const struct tsocket_address *local_address,
                                const struct tsocket_address *remote_address,
-                               const struct auth_serversupplied_info *server_info)
+                               const struct auth_serversupplied_info *session_info)
 {
        struct np_proxy_state *result;
        char *socket_np_dir;
        const char *socket_dir;
        struct tevent_context *ev;
        struct tevent_req *subreq;
-       struct netr_SamInfo3 *info3;
+       struct auth_session_info_transport *session_info_t;
+       struct auth_session_info *session_info_npa;
+       struct auth_user_info_dc *user_info_dc;
+       union netr_Validation val;
        NTSTATUS status;
        bool ok;
        int ret;
@@ -606,6 +628,18 @@ struct np_proxy_state *make_external_rpc_pipe_p(TALLOC_CTX *mem_ctx,
                return NULL;
        }
 
+       result->read_queue = tevent_queue_create(result, "np_read");
+       if (result->read_queue == NULL) {
+               DEBUG(0, ("tevent_queue_create failed\n"));
+               goto fail;
+       }
+
+       result->write_queue = tevent_queue_create(result, "np_write");
+       if (result->write_queue == NULL) {
+               DEBUG(0, ("tevent_queue_create failed\n"));
+               goto fail;
+       }
+
        ev = s3_tevent_context_init(talloc_tos());
        if (ev == NULL) {
                DEBUG(0, ("s3_tevent_context_init failed\n"));
@@ -625,20 +659,39 @@ struct np_proxy_state *make_external_rpc_pipe_p(TALLOC_CTX *mem_ctx,
                goto fail;
        }
 
-       info3 = talloc_zero(talloc_tos(), struct netr_SamInfo3);
-       if (info3 == NULL) {
+       session_info_npa = talloc_zero(talloc_tos(), struct auth_session_info);
+       if (session_info_npa == NULL) {
                DEBUG(0, ("talloc failed\n"));
                goto fail;
        }
 
-       status = serverinfo_to_SamInfo3(server_info, NULL, 0, info3);
+       /* Send the named_pipe_auth server the user's full token */
+       session_info_npa->security_token = session_info->security_token;
+       session_info_npa->session_key = session_info->session_key;
+
+       val.sam3 = session_info->info3;
+
+       /* Convert into something we can build a struct
+        * auth_session_info from.  Most of the work here
+        * will be to convert the SIDS, which we will then ignore, but
+        * this is the easier way to handle it */
+       status = make_user_info_dc_netlogon_validation(talloc_tos(), "", 3, &val, &user_info_dc);
        if (!NT_STATUS_IS_OK(status)) {
-               TALLOC_FREE(info3);
-               DEBUG(0, ("serverinfo_to_SamInfo3 failed: %s\n",
-                         nt_errstr(status)));
+               DEBUG(0, ("conversion of info3 into user_info_dc failed!\n"));
+               goto fail;
+       }
+
+       session_info_npa->info = talloc_move(session_info_npa, &user_info_dc->info);
+       talloc_free(user_info_dc);
+
+       session_info_t = talloc_zero(talloc_tos(), struct auth_session_info_transport);
+       if (session_info_npa == NULL) {
+               DEBUG(0, ("talloc failed\n"));
                goto fail;
        }
 
+       session_info_t->session_info = talloc_steal(session_info_t, session_info_npa);
+
        become_root();
        subreq = tstream_npa_connect_send(talloc_tos(), ev,
                                          socket_np_dir,
@@ -647,15 +700,13 @@ struct np_proxy_state *make_external_rpc_pipe_p(TALLOC_CTX *mem_ctx,
                                          NULL, /* client_name */
                                          local_address, /* server_addr */
                                          NULL, /* server_name */
-                                         info3,
-                                         server_info->user_session_key,
-                                         data_blob_null /* delegated_creds */);
+                                         session_info_t);
        if (subreq == NULL) {
                unbecome_root();
                DEBUG(0, ("tstream_npa_connect_send to %s for pipe %s and "
                          "user %s\\%s failed\n",
-                         socket_np_dir, pipe_name, info3->base.domain.string,
-                         info3->base.account_name.string));
+                         socket_np_dir, pipe_name, session_info_t->session_info->info->domain_name,
+                         session_info_t->session_info->info->account_name));
                goto fail;
        }
        ok = tevent_req_poll(subreq, ev);
@@ -663,8 +714,8 @@ struct np_proxy_state *make_external_rpc_pipe_p(TALLOC_CTX *mem_ctx,
        if (!ok) {
                DEBUG(0, ("tevent_req_poll to %s for pipe %s and user %s\\%s "
                          "failed for tstream_npa_connect: %s\n",
-                         socket_np_dir, pipe_name, info3->base.domain.string,
-                         info3->base.account_name.string,
+                         socket_np_dir, pipe_name, session_info_t->session_info->info->domain_name,
+                         session_info_t->session_info->info->account_name,
                          strerror(errno)));
                goto fail;
 
@@ -679,8 +730,8 @@ struct np_proxy_state *make_external_rpc_pipe_p(TALLOC_CTX *mem_ctx,
        if (ret != 0) {
                DEBUG(0, ("tstream_npa_connect_recv  to %s for pipe %s and "
                          "user %s\\%s failed: %s\n",
-                         socket_np_dir, pipe_name, info3->base.domain.string,
-                         info3->base.account_name.string,
+                         socket_np_dir, pipe_name, session_info_t->session_info->info->domain_name,
+                         session_info_t->session_info->info->account_name,
                          strerror(sys_errno)));
                goto fail;
        }
@@ -695,7 +746,7 @@ struct np_proxy_state *make_external_rpc_pipe_p(TALLOC_CTX *mem_ctx,
 static NTSTATUS rpc_pipe_open_external(TALLOC_CTX *mem_ctx,
                                const char *pipe_name,
                                const struct ndr_syntax_id *abstract_syntax,
-                               const struct auth_serversupplied_info *server_info,
+                               const struct auth_serversupplied_info *session_info,
                                struct rpc_pipe_client **_result)
 {
        struct tsocket_address *local, *remote;
@@ -718,7 +769,7 @@ static NTSTATUS rpc_pipe_open_external(TALLOC_CTX *mem_ctx,
        }
 
        proxy_state = make_external_rpc_pipe_p(mem_ctx, pipe_name,
-                                               local, remote, server_info);
+                                               local, remote, session_info);
        if (!proxy_state) {
                return NT_STATUS_UNSUCCESSFUL;
        }
@@ -750,6 +801,13 @@ static NTSTATUS rpc_pipe_open_external(TALLOC_CTX *mem_ctx,
                goto done;
        }
 
+       result->binding_handle = rpccli_bh_create(result);
+       if (result->binding_handle == NULL) {
+               status = NT_STATUS_NO_MEMORY;
+               DEBUG(0, ("Failed to create binding handle.\n"));
+               goto done;
+       }
+
        result->auth = talloc_zero(result, struct pipe_auth_data);
        if (!result->auth) {
                status = NT_STATUS_NO_MEMORY;
@@ -766,9 +824,10 @@ static NTSTATUS rpc_pipe_open_external(TALLOC_CTX *mem_ctx,
 
        status = rpc_pipe_bind(result, auth);
        if (!NT_STATUS_IS_OK(status)) {
-               DEBUG(0, ("Failed to bind spoolss pipe.\n"));
+               DEBUG(0, ("Failed to bind external pipe.\n"));
                goto done;
        }
+
 done:
        if (!NT_STATUS_IS_OK(status)) {
                TALLOC_FREE(result);
@@ -779,22 +838,41 @@ done:
 }
 
 /**
- * @brief Create a new RPC client context which uses a local dispatch function.
+ * @brief Create a new RPC client context which uses a local dispatch function
+ *       or a remote transport, depending on rpc_server configuration for the
+ *       specific service.
+ *
+ * @param[in]  mem_ctx  The memory context to use.
+ *
+ * @param[in]  abstract_syntax Normally the syntax_id of the autogenerated
+ *                             ndr_table_<name>.
+ *
+ * @param[in]  serversupplied_info The server supplied authentication function.
  *
- * @param mem_ctx      The memory context on which thje pipe will ultimately
- *                     be allocated
- * @param name         The pipe name to connect to.
- * @param server_info  Credentials to use for the connection.
- * @param pipe         [in|out] Checks if a pipe is connected, and connects it
- *                              if not
+ * @param[in]  client_id The client address information.
  *
- * @return              NT_STATUS_OK on success, a corresponding NT status if
- *                     an error occured.
+ * @param[in]  msg_ctx  The messaging context to use.
+ *
+ * @param[out] presult  A pointer to store the connected rpc client pipe.
+ *
+ * @return              NT_STATUS_OK on success, a corresponding NT status if an
+ *                      error occured.
+ *
+ * @code
+ *   struct rpc_pipe_client *winreg_pipe;
+ *   NTSTATUS status;
+ *
+ *   status = rpc_pipe_open_interface(tmp_ctx,
+ *                                    &ndr_table_winreg.syntax_id,
+ *                                    p->session_info,
+ *                                    client_id,
+ *                                    &winreg_pipe);
+ * @endcode
  */
 
 NTSTATUS rpc_pipe_open_interface(TALLOC_CTX *mem_ctx,
                                 const struct ndr_syntax_id *syntax,
-                                const struct auth_serversupplied_info *server_info,
+                                const struct auth_serversupplied_info *session_info,
                                 struct client_address *client_id,
                                 struct messaging_context *msg_ctx,
                                 struct rpc_pipe_client **cli_pipe)
@@ -832,27 +910,33 @@ NTSTATUS rpc_pipe_open_interface(TALLOC_CTX *mem_ctx,
                                           "rpc_server", pipe_name,
                                           "embedded");
 
-       if (StrCaseCmp(server_type, "embedded") == 0) {
+       if (strcasecmp_m(server_type, "embedded") == 0) {
                status = rpc_pipe_open_internal(tmp_ctx,
-                                               syntax, server_info,
+                                               syntax, session_info,
                                                client_id, msg_ctx,
                                                &cli);
                if (!NT_STATUS_IS_OK(status)) {
                        goto done;
                }
-       } else {
+       } else if (strcasecmp_m(server_type, "daemon") == 0 ||
+                  strcasecmp_m(server_type, "external") == 0) {
                /* 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(tmp_ctx,
                                                pipe_name, syntax,
-                                               server_info,
+                                               session_info,
                                                &cli);
                if (!NT_STATUS_IS_OK(status)) {
                        goto done;
                }
-       }
+       } else {
+               status = NT_STATUS_NOT_IMPLEMENTED;
+               DEBUG(0, ("Wrong servertype specified in config file: %s",
+                         nt_errstr(status)));
+               goto done;
+        }
 
        status = NT_STATUS_OK;
 done: