pidl:s3-rpc: make pidl rpc server api calls async
[ddiss/samba.git] / source3 / rpc_server / rpc_ncacn_np.c
index f43d0b81bc4e433571f55e152c0e778f0f867ec8..6a92478e4e533df4b3e32fd803e8f3e4e249ce9f 100644 (file)
 #include "librpc/gen_ndr/auth.h"
 #include "../auth/auth_sam_reply.h"
 #include "auth.h"
-#include "ntdomain.h"
+#include "rpc_server/rpc_pipes.h"
 #include "../lib/tsocket/tsocket.h"
 #include "../lib/util/tevent_ntstatus.h"
 #include "rpc_contexts.h"
+#include "rpc_server/rpc_config.h"
 
 #undef DBGC_CLASS
 #define DBGC_CLASS DBGC_RPC_SRV
 
-static struct pipes_struct *InternalPipes;
-
-/* TODO
- * the following prototypes are declared here to avoid
- * code being moved about too much for a patch to be
- * disrupted / less obvious.
- *
- * these functions, and associated functions that they
- * call, should be moved behind a .so module-loading
- * system _anyway_.  so that's the next step...
- */
-
-/****************************************************************************
- Internal Pipe iterator functions.
-****************************************************************************/
-
-struct pipes_struct *get_first_internal_pipe(void)
-{
-       return InternalPipes;
-}
-
-struct pipes_struct *get_next_internal_pipe(struct pipes_struct *p)
-{
-       return p->next;
-}
-
-static void free_pipe_rpc_context_internal( PIPE_RPC_FNS *list )
-{
-       PIPE_RPC_FNS *tmp = list;
-       PIPE_RPC_FNS *tmp2;
-
-       while (tmp) {
-               tmp2 = tmp->next;
-               SAFE_FREE(tmp);
-               tmp = tmp2;
-       }
-
-       return;
-}
-
-bool check_open_pipes(void)
-{
-       struct pipes_struct *p;
-
-       for (p = InternalPipes; p != NULL; p = p->next) {
-               if (num_pipe_handles(p) != 0) {
-                       return true;
-               }
-       }
-       return false;
-}
-
-/****************************************************************************
- Close an rpc pipe.
-****************************************************************************/
-
-int close_internal_rpc_pipe_hnd(struct pipes_struct *p)
-{
-       if (!p) {
-               DEBUG(0,("Invalid pipe in close_internal_rpc_pipe_hnd\n"));
-               return False;
-       }
-
-       TALLOC_FREE(p->auth.auth_ctx);
-
-       /* Free the handles database. */
-       close_policy_by_pipe(p);
-
-       free_pipe_rpc_context_internal( p->contexts );
-
-       DLIST_REMOVE(InternalPipes, p);
-
-       ZERO_STRUCTP(p);
-
-       return 0;
-}
-
 /****************************************************************************
  Make an internal namedpipes structure
 ****************************************************************************/
@@ -123,31 +47,26 @@ 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,
                                              const struct tsocket_address *remote_address,
-                                             const struct auth3_session_info *session_info,
+                                             const struct auth_session_info *session_info,
                                              struct messaging_context *msg_ctx)
 {
        struct pipes_struct *p;
        struct pipe_rpc_fns *context_fns;
+       const char *pipe_name;
+       int ret;
 
-       DEBUG(4,("Create pipe requested %s\n",
-                get_pipe_name_from_syntax(talloc_tos(), syntax)));
+       pipe_name = get_pipe_name_from_syntax(talloc_tos(), syntax);
 
-       p = talloc_zero(mem_ctx, struct pipes_struct);
+       DEBUG(4,("Create pipe requested %s\n", pipe_name));
 
-       if (!p) {
+       ret = make_base_pipes_struct(mem_ctx, msg_ctx, pipe_name,
+                                    NCALRPC, RPC_LITTLE_ENDIAN, false,
+                                    remote_address, NULL, &p);
+       if (ret) {
                DEBUG(0,("ERROR! no memory for pipes_struct!\n"));
                return NULL;
        }
 
-       p->mem_ctx = talloc_named(p, 0, "pipe %s %p",
-                                get_pipe_name_from_syntax(talloc_tos(),
-                                                          syntax), p);
-       if (p->mem_ctx == NULL) {
-               DEBUG(0,("open_rpc_pipe_p: talloc_init failed.\n"));
-               TALLOC_FREE(p);
-               return NULL;
-       }
-
        if (!init_pipe_handles(p, syntax)) {
                DEBUG(0,("open_rpc_pipe_p: init_pipe_handles failed.\n"));
                TALLOC_FREE(p);
@@ -162,23 +81,11 @@ struct pipes_struct *make_internal_rpc_pipe_p(TALLOC_CTX *mem_ctx,
                return NULL;
        }
 
-       p->msg_ctx = msg_ctx;
-
-       DLIST_ADD(InternalPipes, p);
-
-       p->remote_address = tsocket_address_copy(remote_address, p);
-       if (p->remote_address == NULL) {
-               return false;
-       }
-
-       p->endian = RPC_LITTLE_ENDIAN;
-
-       p->transport = NCALRPC;
-
-       context_fns = SMB_MALLOC_P(struct pipe_rpc_fns);
+       context_fns = talloc(p, struct pipe_rpc_fns);
        if (context_fns == NULL) {
-               DEBUG(0,("malloc() failed!\n"));
-               return False;
+               DEBUG(0,("talloc() failed!\n"));
+               TALLOC_FREE(p);
+               return NULL;
        }
 
        context_fns->next = context_fns->prev = NULL;
@@ -190,76 +97,114 @@ struct pipes_struct *make_internal_rpc_pipe_p(TALLOC_CTX *mem_ctx,
        /* 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);
+       DEBUG(4,("Created internal pipe %s\n", pipe_name));
 
        return p;
 }
 
-static NTSTATUS rpcint_dispatch(struct pipes_struct *p,
-                               TALLOC_CTX *mem_ctx,
-                               uint32_t opnum,
-                               const DATA_BLOB *in_data,
-                               DATA_BLOB *out_data)
+struct rpcint_dispatch_state {
+       const struct api_struct *cmd;
+       DATA_BLOB out_data;
+       struct pipes_struct *p;
+};
+static void rpcint_dispatch_done(struct tevent_req *subreq);
+
+static struct tevent_req *rpcint_dispatch_send(struct tevent_context *ev,
+                                              TALLOC_CTX *mem_ctx,
+                                              struct pipes_struct *p,
+                                              uint32_t opnum,
+                                              const DATA_BLOB *in_data)
 {
        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;
+       struct rpcint_dispatch_state *state;
+       struct tevent_req *subreq;
+       struct tevent_req *req = tevent_req_create(mem_ctx, &state,
+                                               struct rpcint_dispatch_state);
+       if (req == NULL) {
+               return NULL;
+       }
+       state->p = p;
 
        /* set opnum */
        p->opnum = opnum;
 
        for (i = 0; i < num_cmds; i++) {
-               if (cmds[i].opnum == opnum && cmds[i].fn != NULL) {
+               if (cmds[i].opnum == opnum && cmds[i].fn_send != NULL) {
                        break;
                }
        }
 
        if (i == num_cmds) {
-               return NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE;
+               tevent_req_nterror(req, NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE);
+               return tevent_req_post(req, ev);
        }
 
+       state->cmd = &cmds[i];
        p->in_data.data = *in_data;
        p->out_data.rdata = data_blob_null;
 
-       ok = cmds[i].fn(p);
+       subreq = state->cmd->fn_send(ev, state, p);
+       if (tevent_req_nomem(subreq, req)) {
+               return tevent_req_post(req, ev);
+       }
+       tevent_req_set_callback(subreq, rpcint_dispatch_done, req);
+       return req;
+}
+
+static void rpcint_dispatch_done(struct tevent_req *subreq)
+{
+       struct tevent_req *req = tevent_req_callback_data(subreq,
+                                                         struct tevent_req);
+       struct rpcint_dispatch_state *state
+                       = tevent_req_data(req, struct rpcint_dispatch_state);
+       struct pipes_struct *p = state->p;
+       bool ok;
+
+       ok = state->cmd->fn_recv(subreq);
        p->in_data.data = data_blob_null;
        if (!ok) {
                data_blob_free(&p->out_data.rdata);
                talloc_free_children(p->mem_ctx);
-               return NT_STATUS_RPC_CALL_FAILED;
+               tevent_req_nterror(req, NT_STATUS_RPC_CALL_FAILED);
+               return;
        }
 
        if (p->fault_state) {
-               p->fault_state = false;
+               NTSTATUS status = NT_STATUS(p->fault_state);
+               p->fault_state = 0;
                data_blob_free(&p->out_data.rdata);
                talloc_free_children(p->mem_ctx);
-               return NT_STATUS_RPC_CALL_FAILED;
+               tevent_req_nterror(req, status);
+               return;
        }
 
-       if (p->bad_handle_fault_state) {
-               p->bad_handle_fault_state = false;
-               data_blob_free(&p->out_data.rdata);
-               talloc_free_children(p->mem_ctx);
-               return NT_STATUS_RPC_SS_CONTEXT_MISMATCH;
-       }
+       state->out_data = p->out_data.rdata;
+       talloc_steal(state, state->out_data.data);
+       p->out_data.rdata = data_blob_null;
 
-       if (p->rng_fault_state) {
-               p->rng_fault_state = false;
-               data_blob_free(&p->out_data.rdata);
-               talloc_free_children(p->mem_ctx);
-               return NT_STATUS_RPC_PROCNUM_OUT_OF_RANGE;
+       talloc_free_children(p->mem_ctx);
+       tevent_req_done(req);
+}
+
+static NTSTATUS rpcint_dispatch_recv(struct tevent_req *req,
+                                    TALLOC_CTX *mem_ctx,
+                                    DATA_BLOB *out_data)
+{
+       struct rpcint_dispatch_state *state
+               = tevent_req_data(req, struct rpcint_dispatch_state);
+       NTSTATUS status;
+
+       if (tevent_req_is_nterror(req, &status)) {
+               tevent_req_received(req);
+               return status;
        }
 
-       *out_data = p->out_data.rdata;
+       *out_data = state->out_data;
        talloc_steal(mem_ctx, out_data->data);
-       p->out_data.rdata = data_blob_null;
-
-       talloc_free_children(p->mem_ctx);
+       tevent_req_received(req);
        return NT_STATUS_OK;
 }
 
@@ -291,6 +236,7 @@ struct rpcint_bh_raw_call_state {
        DATA_BLOB out_data;
        uint32_t out_flags;
 };
+static void rpcint_bh_raw_call_done(struct tevent_req *subreq);
 
 static struct tevent_req *rpcint_bh_raw_call_send(TALLOC_CTX *mem_ctx,
                                                  struct tevent_context *ev,
@@ -305,9 +251,9 @@ static struct tevent_req *rpcint_bh_raw_call_send(TALLOC_CTX *mem_ctx,
                dcerpc_binding_handle_data(h,
                struct rpcint_bh_state);
        struct tevent_req *req;
+       struct tevent_req *subreq;
        struct rpcint_bh_raw_call_state *state;
        bool ok;
-       NTSTATUS status;
 
        req = tevent_req_create(mem_ctx, &state,
                                struct rpcint_bh_raw_call_state);
@@ -319,21 +265,35 @@ static struct tevent_req *rpcint_bh_raw_call_send(TALLOC_CTX *mem_ctx,
 
        ok = rpcint_bh_is_connected(h);
        if (!ok) {
-               tevent_req_nterror(req, NT_STATUS_INVALID_CONNECTION);
+               tevent_req_nterror(req, NT_STATUS_CONNECTION_DISCONNECTED);
                return tevent_req_post(req, ev);
        }
 
-       /* TODO: allow async */
-       status = rpcint_dispatch(hs->p, state, opnum,
-                                &state->in_data,
-                                &state->out_data);
-       if (!NT_STATUS_IS_OK(status)) {
-               tevent_req_nterror(req, status);
+       subreq = rpcint_dispatch_send(ev, state, hs->p, opnum,
+                                     &state->in_data);
+       if (tevent_req_nomem(subreq, req)) {
                return tevent_req_post(req, ev);
        }
+       tevent_req_set_callback(subreq, rpcint_bh_raw_call_done, req);
+
+       return req;
+}
+
+static void rpcint_bh_raw_call_done(struct tevent_req *subreq)
+{
+       struct tevent_req *req = tevent_req_callback_data(subreq,
+                                                         struct tevent_req);
+       struct rpcint_bh_raw_call_state *state
+               = tevent_req_data(req, struct rpcint_bh_raw_call_state);
+       NTSTATUS status;
 
+       status = rpcint_dispatch_recv(subreq, state,
+                                     &state->out_data);
+       if (!NT_STATUS_IS_OK(status)) {
+               tevent_req_nterror(req, status);
+               return;
+       }
        tevent_req_done(req);
-       return tevent_req_post(req, ev);
 }
 
 static NTSTATUS rpcint_bh_raw_call_recv(struct tevent_req *req,
@@ -381,7 +341,7 @@ static struct tevent_req *rpcint_bh_disconnect_send(TALLOC_CTX *mem_ctx,
 
        ok = rpcint_bh_is_connected(h);
        if (!ok) {
-               tevent_req_nterror(req, NT_STATUS_INVALID_CONNECTION);
+               tevent_req_nterror(req, NT_STATUS_CONNECTION_DISCONNECTED);
                return tevent_req_post(req, ev);
        }
 
@@ -456,7 +416,7 @@ static NTSTATUS rpcint_binding_handle_ex(TALLOC_CTX *mem_ctx,
                        const struct ndr_syntax_id *abstract_syntax,
                        const struct ndr_interface_table *ndr_table,
                        const struct tsocket_address *remote_address,
-                       const struct auth3_session_info *session_info,
+                       const struct auth_session_info *session_info,
                        struct messaging_context *msg_ctx,
                        struct dcerpc_binding_handle **binding_handle)
 {
@@ -524,7 +484,7 @@ 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,
                               const struct tsocket_address *remote_address,
-                              const struct auth3_session_info *session_info,
+                              const struct auth_session_info *session_info,
                               struct messaging_context *msg_ctx,
                               struct dcerpc_binding_handle **binding_handle)
 {
@@ -557,9 +517,9 @@ NTSTATUS rpcint_binding_handle(TALLOC_CTX *mem_ctx,
  * @return              NT_STATUS_OK on success, a corresponding NT status if an
  *                      error occured.
  */
-static NTSTATUS rpc_pipe_open_internal(TALLOC_CTX *mem_ctx,
+NTSTATUS rpc_pipe_open_internal(TALLOC_CTX *mem_ctx,
                                const struct ndr_syntax_id *abstract_syntax,
-                               const struct auth3_session_info *session_info,
+                               const struct auth_session_info *session_info,
                                const struct tsocket_address *remote_address,
                                struct messaging_context *msg_ctx,
                                struct rpc_pipe_client **presult)
@@ -573,7 +533,7 @@ static NTSTATUS rpc_pipe_open_internal(TALLOC_CTX *mem_ctx,
        }
 
        result->abstract_syntax = *abstract_syntax;
-       result->transfer_syntax = ndr_transfer_syntax;
+       result->transfer_syntax = ndr_transfer_syntax_ndr;
 
        if (remote_address == NULL) {
                struct tsocket_address *local;
@@ -620,7 +580,7 @@ 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 auth3_session_info *session_info)
+                               const struct auth_session_info *session_info)
 {
        struct np_proxy_state *result;
        char *socket_np_dir;
@@ -628,10 +588,6 @@ struct np_proxy_state *make_external_rpc_pipe_p(TALLOC_CTX *mem_ctx,
        struct tevent_context *ev;
        struct tevent_req *subreq;
        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;
        int sys_errno;
@@ -673,41 +629,19 @@ struct np_proxy_state *make_external_rpc_pipe_p(TALLOC_CTX *mem_ctx,
                goto fail;
        }
 
-       session_info_npa = talloc_zero(talloc_tos(), struct auth_session_info);
-       if (session_info_npa == NULL) {
+       session_info_t = talloc_zero(talloc_tos(), struct auth_session_info_transport);
+       if (session_info_t == NULL) {
                DEBUG(0, ("talloc failed\n"));
                goto fail;
        }
 
-       /* 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;
-       session_info_npa->unix_token = session_info->unix_token;
-       session_info_npa->unix_info = session_info->unix_info;
-
-       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)) {
-               DEBUG(0, ("conversion of info3 into user_info_dc failed!\n"));
+       session_info_t->session_info = copy_session_info(session_info_t,
+                                                        session_info);
+       if (session_info_t->session_info == NULL) {
+               DEBUG(0, ("copy_session_info 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,
@@ -744,7 +678,11 @@ struct np_proxy_state *make_external_rpc_pipe_p(TALLOC_CTX *mem_ctx,
                                       &result->allocation_size);
        TALLOC_FREE(subreq);
        if (ret != 0) {
-               DEBUG(0, ("tstream_npa_connect_recv  to %s for pipe %s and "
+               int l = 1;
+               if (errno == ENOENT) {
+                       l = 2;
+               }
+               DEBUG(l, ("tstream_npa_connect_recv  to %s for pipe %s and "
                          "user %s\\%s failed: %s\n",
                          socket_np_dir, pipe_name, session_info_t->session_info->info->domain_name,
                          session_info_t->session_info->info->account_name,
@@ -762,7 +700,7 @@ 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 auth3_session_info *session_info,
+                               const struct auth_session_info *session_info,
                                struct rpc_pipe_client **_result)
 {
        struct tsocket_address *local, *remote;
@@ -797,7 +735,7 @@ static NTSTATUS rpc_pipe_open_external(TALLOC_CTX *mem_ctx,
        }
 
        result->abstract_syntax = *abstract_syntax;
-       result->transfer_syntax = ndr_transfer_syntax;
+       result->transfer_syntax = ndr_transfer_syntax_ndr;
 
        result->desthost = get_myname(result);
        result->srv_name_slash = talloc_asprintf_strupper_m(
@@ -888,13 +826,13 @@ done:
 
 NTSTATUS rpc_pipe_open_interface(TALLOC_CTX *mem_ctx,
                                 const struct ndr_syntax_id *syntax,
-                                const struct auth3_session_info *session_info,
+                                const struct auth_session_info *session_info,
                                 const struct tsocket_address *remote_address,
                                 struct messaging_context *msg_ctx,
                                 struct rpc_pipe_client **cli_pipe)
 {
        struct rpc_pipe_client *cli = NULL;
-       const char *server_type;
+       enum rpc_service_mode_e pipe_mode;
        const char *pipe_name;
        NTSTATUS status;
        TALLOC_CTX *tmp_ctx;
@@ -922,11 +860,10 @@ NTSTATUS rpc_pipe_open_interface(TALLOC_CTX *mem_ctx,
 
        DEBUG(5, ("Connecting to %s pipe.\n", pipe_name));
 
-       server_type = lp_parm_const_string(GLOBAL_SECTION_SNUM,
-                                          "rpc_server", pipe_name,
-                                          "embedded");
+       pipe_mode = rpc_service_mode(pipe_name);
 
-       if (strcasecmp_m(server_type, "embedded") == 0) {
+       switch (pipe_mode) {
+       case RPC_SERVICE_MODE_EMBEDDED:
                status = rpc_pipe_open_internal(tmp_ctx,
                                                syntax, session_info,
                                                remote_address, msg_ctx,
@@ -934,8 +871,8 @@ NTSTATUS rpc_pipe_open_interface(TALLOC_CTX *mem_ctx,
                if (!NT_STATUS_IS_OK(status)) {
                        goto done;
                }
-       } else if (strcasecmp_m(server_type, "daemon") == 0 ||
-                  strcasecmp_m(server_type, "external") == 0) {
+               break;
+       case RPC_SERVICE_MODE_EXTERNAL:
                /* 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. */
@@ -947,10 +884,11 @@ NTSTATUS rpc_pipe_open_interface(TALLOC_CTX *mem_ctx,
                if (!NT_STATUS_IS_OK(status)) {
                        goto done;
                }
-       } else {
+               break;
+       case RPC_SERVICE_MODE_DISABLED:
                status = NT_STATUS_NOT_IMPLEMENTED;
-               DEBUG(0, ("Wrong servertype specified in config file: %s",
-                         nt_errstr(status)));
+               DEBUG(0, ("Service pipe %s is disabled in config file: %s",
+                         pipe_name, nt_errstr(status)));
                goto done;
         }