diff options
Diffstat (limited to 'source3/librpc/rpc/dcerpc.c')
| -rw-r--r-- | source3/librpc/rpc/dcerpc.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/source3/librpc/rpc/dcerpc.c b/source3/librpc/rpc/dcerpc.c new file mode 100644 index 0000000000..c8bca8d3eb --- /dev/null +++ b/source3/librpc/rpc/dcerpc.c @@ -0,0 +1,187 @@ +/* + Unix SMB/CIFS implementation. + Samba 4-compatible DCE/RPC API on top of the Samba 3 DCE/RPC client library. + Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2008 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "includes.h" +#include "librpc/rpc/dcerpc.h" + +/** + * Send a struct-based RPC request using the Samba 3 RPC client library. + */ +struct rpc_request *dcerpc_ndr_request_send(struct dcerpc_pipe *p, const struct GUID *object, + const struct ndr_interface_table *table, uint32_t opnum, + TALLOC_CTX *mem_ctx, void *r) +{ + const struct ndr_interface_call *call; + struct ndr_push *push; + struct rpc_request *ret = talloc(mem_ctx, struct rpc_request); + enum ndr_err_code ndr_err; + DATA_BLOB blob; + + if (ret == NULL) + return NULL; + + SMB_ASSERT(p->table->num_calls > opnum); + + call = &p->table->calls[opnum]; + + ret->call = call; + ret->r = r; + + push = ndr_push_init_ctx(mem_ctx); + if (!push) { + return NULL; + } + + ndr_err = call->ndr_push(push, NDR_IN, r); + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + /* FIXME: ndr_map_error2ntstatus(ndr_err); */ + return NULL; + } + + blob = ndr_push_blob(push); + + if (!prs_init_data_blob(&ret->q_ps, &blob, mem_ctx)) { + return NULL; + } + + talloc_free(push); + + ret->opnum = opnum; + + ret->pipe = p; + + return ret; +} + +/** + * Wait for a DCE/RPC request. + * + * @note at the moment this is still sync, even though the API is async. + */ +NTSTATUS dcerpc_ndr_request_recv(struct rpc_request *req) +{ + prs_struct r_ps; + struct ndr_pull *pull; + NTSTATUS status; + DATA_BLOB blob; + enum ndr_err_code ndr_err; + + prs_init_empty( &r_ps, req, UNMARSHALL ); + + status = rpc_api_pipe_req(req->pipe->rpc_cli, req->opnum, &req->q_ps, &r_ps); + + prs_mem_free( &req->q_ps ); + + if (!NT_STATUS_IS_OK(status)) { + prs_mem_free( &r_ps ); + return status; + } + + if (!prs_data_blob(&r_ps, &blob, req)) { + prs_mem_free( &r_ps ); + return NT_STATUS_NO_MEMORY; + } + + prs_mem_free( &r_ps ); + + pull = ndr_pull_init_blob(&blob, req); + if (pull == NULL) { + return NT_STATUS_NO_MEMORY; + } + + /* have the ndr parser alloc memory for us */ + pull->flags |= LIBNDR_FLAG_REF_ALLOC; + ndr_err = req->call->ndr_pull(pull, NDR_OUT, req->r); + talloc_free(pull); + + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + return ndr_map_error2ntstatus(ndr_err); + } + + return NT_STATUS_OK; +} + +/** + * Connect to a DCE/RPC interface. + * + * @note lp_ctx and ev are ignored at the moment but present + * for API compatibility. + */ +_PUBLIC_ NTSTATUS dcerpc_pipe_connect(TALLOC_CTX *parent_ctx, struct dcerpc_pipe **pp, + const char *binding_string, const struct ndr_interface_table *table, + struct cli_credentials *credentials, struct event_context *ev, + struct loadparm_context *lp_ctx) +{ + struct dcerpc_pipe *p = talloc(parent_ctx, struct dcerpc_pipe); + struct dcerpc_binding *binding; + NTSTATUS nt_status; + int idx; + + nt_status = dcerpc_parse_binding(p, binding_string, &binding); + + if (NT_STATUS_IS_ERR(nt_status)) { + DEBUG(1, ("Unable to parse binding string '%s'", binding_string)); + talloc_free(p); + return nt_status; + } + + if (binding->transport != NCACN_NP) { + DEBUG(0, ("Only ncacn_np supported")); + talloc_free(p); + return NT_STATUS_NOT_SUPPORTED; + } + + /* FIXME: Actually use loadparm_context.. */ + + /* FIXME: actually use credentials */ + + nt_status = cli_full_connection(&p->cli, global_myname(), binding->host, + NULL, 0, + "IPC$", "IPC", + get_cmdline_auth_info_username(), + lp_workgroup(), + get_cmdline_auth_info_password(), + get_cmdline_auth_info_use_kerberos() ? CLI_FULL_CONNECTION_USE_KERBEROS : 0, + get_cmdline_auth_info_signing_state(), NULL); + + if (NT_STATUS_IS_ERR(nt_status)) { + talloc_free(p); + return nt_status; + } + + idx = cli_get_pipe_idx(&table->syntax_id); + if (idx < 0) { + DEBUG(0, ("Unable to find interface index")); + talloc_free(p); + return NT_STATUS_OBJECT_PATH_INVALID; + } + + p->rpc_cli = cli_rpc_pipe_open_noauth(p->cli, idx, &nt_status); + + if (p->rpc_cli == NULL) { + talloc_free(p); + return nt_status; + } + + p->table = table; + + *pp = p; + + return nt_status; +} |