diff options
Diffstat (limited to 'source4/winbind/wb_connect_lsa.c')
| -rw-r--r-- | source4/winbind/wb_connect_lsa.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/source4/winbind/wb_connect_lsa.c b/source4/winbind/wb_connect_lsa.c new file mode 100644 index 0000000000..a728f8abe4 --- /dev/null +++ b/source4/winbind/wb_connect_lsa.c @@ -0,0 +1,135 @@ +/* + Unix SMB/CIFS implementation. + + Connect to the LSA pipe, given an smbcli_tree and possibly some + credentials. Try ntlmssp, schannel and anon in that order. + + Copyright (C) Volker Lendecke 2005 + Copyright (C) Andrew Bartlett <abartlet@samba.org> 2007 + + 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 "libcli/composite/composite.h" + +#include "libcli/raw/libcliraw.h" +#include "librpc/gen_ndr/ndr_lsa_c.h" +#include "winbind/wb_server.h" + +/* Helper to initialize LSA with a specific auth methods. Verify by opening + * the LSA policy. */ + +struct init_lsa_state { + struct composite_context *ctx; + struct dcerpc_pipe *lsa_pipe; + + uint8_t auth_type; + struct cli_credentials *creds; + + struct lsa_ObjectAttribute objectattr; + struct lsa_OpenPolicy2 openpolicy; + struct policy_handle *handle; +}; + +static void init_lsa_recv_pipe(struct composite_context *ctx); +static void init_lsa_recv_openpol(struct rpc_request *req); + +struct composite_context *wb_init_lsa_send(TALLOC_CTX *mem_ctx, + struct wbsrv_domain *domain) +{ + struct composite_context *result, *ctx; + struct init_lsa_state *state; + + result = composite_create(mem_ctx, domain->netlogon_pipe->conn->event_ctx); + if (result == NULL) goto failed; + + state = talloc(result, struct init_lsa_state); + if (state == NULL) goto failed; + state->ctx = result; + result->private_data = state; + + /* this will make the secondary connection on the same IPC$ share, + secured with SPNEGO or NTLMSSP */ + ctx = dcerpc_secondary_auth_connection_send(domain->netlogon_pipe, + domain->lsa_binding, + &ndr_table_lsarpc, + domain->libnet_ctx->cred, + domain->libnet_ctx->lp_ctx); + composite_continue(state->ctx, ctx, init_lsa_recv_pipe, state); + return result; + + failed: + talloc_free(result); + return NULL; +} + +static void init_lsa_recv_pipe(struct composite_context *ctx) +{ + struct rpc_request *req; + struct init_lsa_state *state = + talloc_get_type(ctx->async.private_data, + struct init_lsa_state); + + state->ctx->status = dcerpc_secondary_auth_connection_recv(ctx, state, + &state->lsa_pipe); + if (!composite_is_ok(state->ctx)) return; + + state->handle = talloc(state, struct policy_handle); + if (composite_nomem(state->handle, state->ctx)) return; + + state->openpolicy.in.system_name = + talloc_asprintf(state, "\\\\%s", + dcerpc_server_name(state->lsa_pipe)); + ZERO_STRUCT(state->objectattr); + state->openpolicy.in.attr = &state->objectattr; + state->openpolicy.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED; + state->openpolicy.out.handle = state->handle; + + req = dcerpc_lsa_OpenPolicy2_send(state->lsa_pipe, state, + &state->openpolicy); + composite_continue_rpc(state->ctx, req, init_lsa_recv_openpol, state); +} + +static void init_lsa_recv_openpol(struct rpc_request *req) +{ + struct init_lsa_state *state = + talloc_get_type(req->async.private_data, + struct init_lsa_state); + + state->ctx->status = dcerpc_ndr_request_recv(req); + if (!composite_is_ok(state->ctx)) return; + state->ctx->status = state->openpolicy.out.result; + if (!composite_is_ok(state->ctx)) return; + + composite_done(state->ctx); +} + +NTSTATUS wb_init_lsa_recv(struct composite_context *c, + TALLOC_CTX *mem_ctx, + struct dcerpc_pipe **lsa_pipe, + struct policy_handle **lsa_policy) +{ + NTSTATUS status = composite_wait(c); + if (NT_STATUS_IS_OK(status)) { + struct init_lsa_state *state = + talloc_get_type(c->private_data, + struct init_lsa_state); + *lsa_pipe = talloc_steal(mem_ctx, state->lsa_pipe); + *lsa_policy = talloc_steal(mem_ctx, state->handle); + } + talloc_free(c); + return status; +} + |