mirror of
https://github.com/samba-team/samba.git
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d4de4c2d21
(This used to be commit 70e7449318
)
245 lines
6.2 KiB
C
245 lines
6.2 KiB
C
/*
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Unix SMB/CIFS implementation.
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Copyright (C) Rafal Szczesniak 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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/*
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a composite function for domain handling
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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 "libnet/composite.h"
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static void domain_open_handler(struct rpc_request*);
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enum domain_open_stage { DOMOPEN_CONNECT, DOMOPEN_LOOKUP, DOMOPEN_OPEN };
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struct domain_open_state {
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enum domain_open_stage stage;
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struct dcerpc_pipe *pipe;
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struct rpc_request *req;
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struct samr_Connect connect;
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struct samr_LookupDomain lookup;
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struct samr_OpenDomain open;
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struct lsa_String domain_name;
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uint32_t access_mask;
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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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/**
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* Stage 1: Connect to SAM server.
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*/
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static NTSTATUS domain_open_connect(struct composite_context *c,
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struct domain_open_state *s)
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{
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struct samr_LookupDomain *r = &s->lookup;
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/* receive samr_Connect reply */
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c->status = dcerpc_ndr_request_recv(s->req);
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NT_STATUS_NOT_OK_RETURN(c->status);
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/* prepare for samr_LookupDomain call */
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r->in.connect_handle = &s->connect_handle;
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r->in.domain_name = &s->domain_name;
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s->req = dcerpc_samr_LookupDomain_send(s->pipe, c, r);
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if (s->req == NULL) goto failure;
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s->req->async.callback = domain_open_handler;
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s->req->async.private = c;
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s->stage = DOMOPEN_LOOKUP;
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return NT_STATUS_OK;
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failure:
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return NT_STATUS_UNSUCCESSFUL;
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}
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/**
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* Stage 2: Lookup domain by name.
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*/
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static NTSTATUS domain_open_lookup(struct composite_context *c,
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struct domain_open_state *s)
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{
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struct samr_OpenDomain *r = &s->open;
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/* receive samr_LookupDomain reply */
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c->status = dcerpc_ndr_request_recv(s->req);
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NT_STATUS_NOT_OK_RETURN(c->status);
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/* prepare for samr_OpenDomain call */
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r->in.connect_handle = &s->connect_handle;
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r->in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
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r->in.sid = s->lookup.out.sid;
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r->out.domain_handle = &s->domain_handle;
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s->req = dcerpc_samr_OpenDomain_send(s->pipe, c, r);
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if (s->req == NULL) goto failure;
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s->req->async.callback = domain_open_handler;
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s->req->async.private = c;
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s->stage = DOMOPEN_OPEN;
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return NT_STATUS_OK;
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failure:
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return NT_STATUS_UNSUCCESSFUL;
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}
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/*
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* Stage 3: Open domain.
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*/
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static NTSTATUS domain_open_open(struct composite_context *c,
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struct domain_open_state *s)
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{
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/* receive samr_OpenDomain reply */
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c->status = dcerpc_ndr_request_recv(s->req);
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NT_STATUS_NOT_OK_RETURN(c->status);
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c->state = COMPOSITE_STATE_DONE;
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return NT_STATUS_OK;
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}
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/**
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* Event handler for asynchronous request. Handles transition through
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* intermediate stages of the call.
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*
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* @param req rpc call context
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*/
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static void domain_open_handler(struct rpc_request *req)
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{
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struct composite_context *c = req->async.private;
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struct domain_open_state *s = talloc_get_type(c->private_data, struct domain_open_state);
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/* Stages of the call */
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switch (s->stage) {
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case DOMOPEN_CONNECT:
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c->status = domain_open_connect(c, s);
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break;
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case DOMOPEN_LOOKUP:
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c->status = domain_open_lookup(c, s);
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break;
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case DOMOPEN_OPEN:
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c->status = domain_open_open(c, s);
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break;
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}
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if (!NT_STATUS_IS_OK(c->status)) {
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c->state = COMPOSITE_STATE_ERROR;
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}
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}
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/**
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* Sends asynchronous domain_open request
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*
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* @param p dce/rpc call pipe
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* @param io arguments and results of the call
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*/
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struct composite_context *libnet_rpc_domain_open_send(struct dcerpc_pipe *p,
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struct libnet_rpc_domain_open *io,
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void (*monitor)(struct monitor_msg*))
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{
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struct composite_context *c;
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struct domain_open_state *s;
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c = talloc_zero(p, struct composite_context);
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if (c == NULL) goto failure;
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s = talloc_zero(c, struct domain_open_state);
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if (s == NULL) goto failure;
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c->state = COMPOSITE_STATE_IN_PROGRESS;
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c->private_data= s;
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c->event_ctx = dcerpc_event_context(p);
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s->pipe = p;
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s->access_mask = io->in.access_mask;
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s->domain_name.string = io->in.domain_name;
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/* preparing parameters to send rpc request */
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s->connect.in.system_name = 0;
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s->connect.in.access_mask = s->access_mask;
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s->connect.out.connect_handle = &s->connect_handle;
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/* send request */
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s->req = dcerpc_samr_Connect_send(p, c, &s->connect);
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/* callback handler */
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s->req->async.callback = domain_open_handler;
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s->req->async.private = c;
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s->stage = DOMOPEN_CONNECT;
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return c;
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failure:
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talloc_free(c);
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return NULL;
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}
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/**
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* Waits for and receives result of asynchronous domain_open call
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*
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* @param c composite context returned by asynchronous domain_open call
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* @param mem_ctx memory context of the call
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* @param io pointer to results (and arguments) of the call
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* @return nt status code of execution
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*/
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NTSTATUS libnet_rpc_domain_open_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
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struct libnet_rpc_domain_open *io)
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{
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NTSTATUS status;
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struct domain_open_state *s;
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/* wait for results of sending request */
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status = composite_wait(c);
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if (NT_STATUS_IS_OK(status) && io) {
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s = talloc_get_type(c->private_data, struct domain_open_state);
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io->out.domain_handle = s->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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/**
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* Synchronous version of domain_open call
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*
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* @param pipe dce/rpc call pipe
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* @param mem_ctx memory context for the call
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* @param io arguments and results of the call
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* @return nt status code of execution
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*/
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NTSTATUS libnet_rpc_domain_open(struct dcerpc_pipe *p,
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TALLOC_CTX *mem_ctx,
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struct libnet_rpc_domain_open *io)
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{
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struct composite_context *c = libnet_rpc_domain_open_send(p, io, NULL);
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return libnet_rpc_domain_open_recv(c, mem_ctx, io);
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}
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