diff options
Diffstat (limited to 'source4/winbind/wb_connect_sam.c')
| -rw-r--r-- | source4/winbind/wb_connect_sam.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/source4/winbind/wb_connect_sam.c b/source4/winbind/wb_connect_sam.c new file mode 100644 index 0000000000..efd715b164 --- /dev/null +++ b/source4/winbind/wb_connect_sam.c @@ -0,0 +1,164 @@ +/* + Unix SMB/CIFS implementation. + + Connect to the SAMR pipe, and return connection and domain handles. + + 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 "libcli/security/security.h" +#include "librpc/gen_ndr/ndr_samr_c.h" +#include "winbind/wb_server.h" + + +/* Helper to initialize SAMR with a specific auth methods. Verify by opening + * the SAM handle */ + +struct connect_samr_state { + struct composite_context *ctx; + struct dom_sid *sid; + + struct dcerpc_pipe *samr_pipe; + struct policy_handle *connect_handle; + struct policy_handle *domain_handle; + + struct samr_Connect2 c; + struct samr_OpenDomain o; +}; + +static void connect_samr_recv_pipe(struct composite_context *ctx); +static void connect_samr_recv_conn(struct rpc_request *req); +static void connect_samr_recv_open(struct rpc_request *req); + +struct composite_context *wb_connect_samr_send(TALLOC_CTX *mem_ctx, + struct wbsrv_domain *domain) +{ + struct composite_context *result, *ctx; + struct connect_samr_state *state; + + result = composite_create(mem_ctx, domain->netlogon_pipe->conn->event_ctx); + if (result == NULL) goto failed; + + state = talloc(result, struct connect_samr_state); + if (state == NULL) goto failed; + state->ctx = result; + result->private_data = state; + + state->sid = dom_sid_dup(state, domain->info->sid); + if (state->sid == NULL) goto failed; + + /* this will make the secondary connection on the same IPC$ share, + secured with SPNEGO, NTLMSSP or SCHANNEL */ + ctx = dcerpc_secondary_auth_connection_send(domain->netlogon_pipe, + domain->samr_binding, + &ndr_table_samr, + domain->libnet_ctx->cred, + domain->libnet_ctx->lp_ctx); + composite_continue(state->ctx, ctx, connect_samr_recv_pipe, state); + return result; + + failed: + talloc_free(result); + return NULL; +} + +static void connect_samr_recv_pipe(struct composite_context *ctx) +{ + struct rpc_request *req; + struct connect_samr_state *state = + talloc_get_type(ctx->async.private_data, + struct connect_samr_state); + + state->ctx->status = dcerpc_secondary_auth_connection_recv(ctx, state, + &state->samr_pipe); + if (!composite_is_ok(state->ctx)) return; + + state->connect_handle = talloc(state, struct policy_handle); + if (composite_nomem(state->connect_handle, state->ctx)) return; + + state->c.in.system_name = + talloc_asprintf(state, "\\\\%s", + dcerpc_server_name(state->samr_pipe)); + state->c.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED; + state->c.out.connect_handle = state->connect_handle; + + req = dcerpc_samr_Connect2_send(state->samr_pipe, state, &state->c); + composite_continue_rpc(state->ctx, req, connect_samr_recv_conn, state); + return; +} + +static void connect_samr_recv_conn(struct rpc_request *req) +{ + struct connect_samr_state *state = + talloc_get_type(req->async.private_data, + struct connect_samr_state); + + state->ctx->status = dcerpc_ndr_request_recv(req); + if (!composite_is_ok(state->ctx)) return; + state->ctx->status = state->c.out.result; + if (!composite_is_ok(state->ctx)) return; + + state->domain_handle = talloc(state, struct policy_handle); + if (composite_nomem(state->domain_handle, state->ctx)) return; + + state->o.in.connect_handle = state->connect_handle; + state->o.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED; + state->o.in.sid = state->sid; + state->o.out.domain_handle = state->domain_handle; + + req = dcerpc_samr_OpenDomain_send(state->samr_pipe, state, &state->o); + composite_continue_rpc(state->ctx, req, + connect_samr_recv_open, state); +} + +static void connect_samr_recv_open(struct rpc_request *req) +{ + struct connect_samr_state *state = + talloc_get_type(req->async.private_data, + struct connect_samr_state); + + state->ctx->status = dcerpc_ndr_request_recv(req); + if (!composite_is_ok(state->ctx)) return; + state->ctx->status = state->o.out.result; + if (!composite_is_ok(state->ctx)) return; + + composite_done(state->ctx); +} + +NTSTATUS wb_connect_samr_recv(struct composite_context *c, + TALLOC_CTX *mem_ctx, + struct dcerpc_pipe **samr_pipe, + struct policy_handle *connect_handle, + struct policy_handle *domain_handle) +{ + NTSTATUS status = composite_wait(c); + if (NT_STATUS_IS_OK(status)) { + struct connect_samr_state *state = + talloc_get_type(c->private_data, + struct connect_samr_state); + *samr_pipe = talloc_steal(mem_ctx, state->samr_pipe); + *connect_handle = *state->connect_handle; + *domain_handle = *state->domain_handle; + } + talloc_free(c); + return status; +} + |