wmi-1.3.16 from opsview.com
This commit is contained in:
Are Casilla
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/*
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Unix SMB/CIFS implementation.
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Connect to the SAMR pipe, given an smbcli_tree and possibly some
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credentials. Try ntlmssp, schannel and anon in that order.
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Copyright (C) Volker Lendecke 2005
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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#include "libcli/composite/composite.h"
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#include "libcli/raw/libcliraw.h"
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#include "libcli/security/security.h"
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#include "librpc/gen_ndr/ndr_samr_c.h"
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/* Helper to initialize SAMR with a specific auth methods. Verify by opening
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* the SAM handle */
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struct connect_samr_state {
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struct composite_context *ctx;
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uint8_t auth_type;
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struct cli_credentials *creds;
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struct dom_sid *sid;
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struct dcerpc_pipe *samr_pipe;
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struct policy_handle *connect_handle;
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struct policy_handle *domain_handle;
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struct samr_Connect2 c;
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struct samr_OpenDomain o;
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};
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static void connect_samr_recv_pipe(struct composite_context *ctx);
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static void connect_samr_recv_anon_bind(struct composite_context *ctx);
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static void connect_samr_recv_auth_bind(struct composite_context *ctx);
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static void connect_samr_recv_conn(struct rpc_request *req);
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static void connect_samr_recv_open(struct rpc_request *req);
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struct composite_context *wb_connect_sam_send(TALLOC_CTX *mem_ctx,
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struct smbcli_tree *tree,
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uint8_t auth_type,
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struct cli_credentials *creds,
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const struct dom_sid *domain_sid)
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{
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struct composite_context *result, *ctx;
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struct connect_samr_state *state;
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result = talloc(mem_ctx, struct composite_context);
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if (result == NULL) goto failed;
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result->state = COMPOSITE_STATE_IN_PROGRESS;
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result->async.fn = NULL;
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result->event_ctx = tree->session->transport->socket->event.ctx;
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state = talloc(result, struct connect_samr_state);
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if (state == NULL) goto failed;
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state->ctx = result;
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result->private_data = state;
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state->auth_type = auth_type;
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state->creds = creds;
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state->sid = dom_sid_dup(state, domain_sid);
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if (state->sid == NULL) goto failed;
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state->samr_pipe = dcerpc_pipe_init(state, result->event_ctx);
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if (state->samr_pipe == NULL) goto failed;
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ctx = dcerpc_pipe_open_smb_send(state->samr_pipe->conn, tree,
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"\\samr");
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ctx->async.fn = connect_samr_recv_pipe;
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ctx->async.private_data = state;
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return result;
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failed:
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talloc_free(result);
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return NULL;
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}
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static void connect_samr_recv_pipe(struct composite_context *ctx)
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{
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struct connect_samr_state *state =
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talloc_get_type(ctx->async.private_data,
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struct connect_samr_state);
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state->ctx->status = dcerpc_pipe_open_smb_recv(ctx);
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if (!composite_is_ok(state->ctx)) return;
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switch (state->auth_type) {
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case DCERPC_AUTH_TYPE_NONE:
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ctx = dcerpc_bind_auth_none_send(state, state->samr_pipe,
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&dcerpc_table_samr);
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composite_continue(state->ctx, ctx,
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connect_samr_recv_anon_bind, state);
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break;
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case DCERPC_AUTH_TYPE_NTLMSSP:
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case DCERPC_AUTH_TYPE_SCHANNEL:
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{
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uint8_t auth_type;
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if (lp_winbind_sealed_pipes()) {
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auth_type = DCERPC_AUTH_LEVEL_PRIVACY;
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} else {
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auth_type = DCERPC_AUTH_LEVEL_INTEGRITY;
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}
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if (state->creds == NULL) {
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composite_error(state->ctx, NT_STATUS_INTERNAL_ERROR);
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return;
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}
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ctx = dcerpc_bind_auth_send(state, state->samr_pipe,
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&dcerpc_table_samr,
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state->creds, state->auth_type,
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auth_type,
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NULL);
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composite_continue(state->ctx, ctx,
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connect_samr_recv_auth_bind, state);
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break;
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}
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default:
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composite_error(state->ctx, NT_STATUS_INTERNAL_ERROR);
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}
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}
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static void connect_samr_recv_anon_bind(struct composite_context *ctx)
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{
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struct connect_samr_state *state =
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talloc_get_type(ctx->async.private_data,
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struct connect_samr_state);
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struct rpc_request *req;
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state->ctx->status = dcerpc_bind_auth_none_recv(ctx);
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if (!composite_is_ok(state->ctx)) return;
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state->connect_handle = talloc(state, struct policy_handle);
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if (composite_nomem(state->connect_handle, state->ctx)) return;
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state->c.in.system_name =
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talloc_asprintf(state, "\\\\%s",
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dcerpc_server_name(state->samr_pipe));
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state->c.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
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state->c.out.connect_handle = state->connect_handle;
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req = dcerpc_samr_Connect2_send(state->samr_pipe, state, &state->c);
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composite_continue_rpc(state->ctx, req, connect_samr_recv_conn, state);
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}
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static void connect_samr_recv_auth_bind(struct composite_context *ctx)
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{
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struct connect_samr_state *state =
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talloc_get_type(ctx->async.private_data,
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struct connect_samr_state);
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struct rpc_request *req;
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state->ctx->status = dcerpc_bind_auth_recv(ctx);
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if (!composite_is_ok(state->ctx)) return;
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state->connect_handle = talloc(state, struct policy_handle);
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if (composite_nomem(state->connect_handle, state->ctx)) return;
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state->c.in.system_name =
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talloc_asprintf(state, "\\\\%s",
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dcerpc_server_name(state->samr_pipe));
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state->c.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
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state->c.out.connect_handle = state->connect_handle;
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req = dcerpc_samr_Connect2_send(state->samr_pipe, state, &state->c);
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composite_continue_rpc(state->ctx, req, connect_samr_recv_conn, state);
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}
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static void connect_samr_recv_conn(struct rpc_request *req)
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{
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struct connect_samr_state *state =
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talloc_get_type(req->async.private,
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struct connect_samr_state);
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state->ctx->status = dcerpc_ndr_request_recv(req);
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if (!composite_is_ok(state->ctx)) return;
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state->ctx->status = state->c.out.result;
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if (!composite_is_ok(state->ctx)) return;
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state->domain_handle = talloc(state, struct policy_handle);
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if (composite_nomem(state->domain_handle, state->ctx)) return;
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state->o.in.connect_handle = state->connect_handle;
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state->o.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
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state->o.in.sid = state->sid;
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state->o.out.domain_handle = state->domain_handle;
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req = dcerpc_samr_OpenDomain_send(state->samr_pipe, state, &state->o);
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composite_continue_rpc(state->ctx, req,
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connect_samr_recv_open, state);
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}
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static void connect_samr_recv_open(struct rpc_request *req)
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{
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struct connect_samr_state *state =
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talloc_get_type(req->async.private,
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struct connect_samr_state);
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state->ctx->status = dcerpc_ndr_request_recv(req);
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if (!composite_is_ok(state->ctx)) return;
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state->ctx->status = state->o.out.result;
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if (!composite_is_ok(state->ctx)) return;
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composite_done(state->ctx);
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}
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NTSTATUS wb_connect_sam_recv(struct composite_context *c,
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TALLOC_CTX *mem_ctx,
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struct dcerpc_pipe **samr_pipe,
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struct policy_handle **connect_handle,
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struct policy_handle **domain_handle)
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{
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NTSTATUS status = composite_wait(c);
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if (NT_STATUS_IS_OK(status)) {
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struct connect_samr_state *state =
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talloc_get_type(c->private_data,
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struct connect_samr_state);
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*samr_pipe = talloc_steal(mem_ctx, state->samr_pipe);
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*connect_handle = talloc_steal(mem_ctx, state->connect_handle);
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*domain_handle = talloc_steal(mem_ctx, state->domain_handle);
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}
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talloc_free(c);
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return status;
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}
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NTSTATUS wb_connect_sam(TALLOC_CTX *mem_ctx,
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struct smbcli_tree *tree,
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uint8_t auth_type,
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struct cli_credentials *creds,
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const struct dom_sid *domain_sid,
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struct dcerpc_pipe **samr_pipe,
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struct policy_handle **connect_handle,
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struct policy_handle **domain_handle)
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{
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struct composite_context *c =
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wb_connect_sam_send(mem_ctx, tree, auth_type, creds,
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domain_sid);
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return wb_connect_sam_recv(c, mem_ctx, samr_pipe, connect_handle,
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domain_handle);
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}
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