userman.c

来自「samba最新软件」· C语言 代码 · 共 884 行 · 第 1/2 页

/* 
   Unix SMB/CIFS implementation.

   Copyright (C) Rafal Szczesniak 2005
   
   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/>.
*/

/*
  a composite functions for user management operations (add/del/chg)
*/

#include "includes.h"
#include "libcli/composite/composite.h"
#include "libnet/composite.h"
#include "libnet/userman.h"
#include "libnet/userinfo.h"
#include "librpc/gen_ndr/ndr_samr_c.h"

/*
 * Composite USER ADD functionality
 */

struct useradd_state {
	struct dcerpc_pipe       *pipe;
	struct rpc_request       *req;
	struct policy_handle     domain_handle;
	struct samr_CreateUser   createuser;
	struct policy_handle     user_handle;
	uint32_t                 user_rid;

	/* information about the progress */
	void (*monitor_fn)(struct monitor_msg *);
};


static void continue_useradd_create(struct rpc_request *req);


/**
 * Stage 1 (and the only one for now): Create user account.
 */
static void continue_useradd_create(struct rpc_request *req)
{
	struct composite_context *c;
	struct useradd_state *s;

	c = talloc_get_type(req->async.private_data, struct composite_context);
	s = talloc_get_type(c->private_data, struct useradd_state);

	/* check rpc layer status code */
	c->status = dcerpc_ndr_request_recv(s->req);
	if (!composite_is_ok(c)) return;

	/* check create user call status code */
	c->status = s->createuser.out.result;

	/* get created user account data */
	s->user_handle = *s->createuser.out.user_handle;
	s->user_rid    = *s->createuser.out.rid;

	/* issue a monitor message */
	if (s->monitor_fn) {
		struct monitor_msg msg;
		struct msg_rpc_create_user rpc_create;

		rpc_create.rid = *s->createuser.out.rid;

		msg.type      = mon_SamrCreateUser;
		msg.data      = (void*)&rpc_create;
		msg.data_size = sizeof(rpc_create);
		
		s->monitor_fn(&msg);
	}
	
	composite_done(c);
}


/**
 * Sends asynchronous useradd request
 *
 * @param p dce/rpc call pipe 
 * @param io arguments and results of the call
 * @param monitor monitor function for providing information about the progress
 */

struct composite_context *libnet_rpc_useradd_send(struct dcerpc_pipe *p,
						  struct libnet_rpc_useradd *io,
						  void (*monitor)(struct monitor_msg*))
{
	struct composite_context *c;
	struct useradd_state *s;

	if (!p || !io) return NULL;

	/* composite allocation and setup */
	c = composite_create(p, dcerpc_event_context(p));
	if (c == NULL) return NULL;
	
	s = talloc_zero(c, struct useradd_state);
	if (composite_nomem(s, c)) return c;
	
	c->private_data = s;

	/* put passed arguments to the state structure */
	s->domain_handle = io->in.domain_handle;
	s->pipe          = p;
	s->monitor_fn    = monitor;
	
	/* preparing parameters to send rpc request */
	s->createuser.in.domain_handle         = &io->in.domain_handle;

	s->createuser.in.account_name          = talloc_zero(c, struct lsa_String);
	if (composite_nomem(s->createuser.in.account_name, c)) return c;

	s->createuser.in.account_name->string  = talloc_strdup(c, io->in.username);
	if (composite_nomem(s->createuser.in.account_name->string, c)) return c;

	s->createuser.out.user_handle          = &s->user_handle;
	s->createuser.out.rid                  = &s->user_rid;

	/* send the request */
	s->req = dcerpc_samr_CreateUser_send(p, c, &s->createuser);
	if (composite_nomem(s->req, c)) return c;

	composite_continue_rpc(c, s->req, continue_useradd_create, c);
	return c;
}


/**
 * Waits for and receives result of asynchronous useradd call
 * 
 * @param c composite context returned by asynchronous useradd call
 * @param mem_ctx memory context of the call
 * @param io pointer to results (and arguments) of the call
 * @return nt status code of execution
 */

NTSTATUS libnet_rpc_useradd_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
				 struct libnet_rpc_useradd *io)
{
	NTSTATUS status;
	struct useradd_state *s;
	
	status = composite_wait(c);
	
	if (NT_STATUS_IS_OK(status) && io) {
		/* get and return result of the call */
		s = talloc_get_type(c->private_data, struct useradd_state);
		io->out.user_handle = s->user_handle;
	}

	talloc_free(c);
	return status;
}


/**
 * Synchronous version of useradd call
 *
 * @param pipe dce/rpc call pipe
 * @param mem_ctx memory context for the call
 * @param io arguments and results of the call
 * @return nt status code of execution
 */

NTSTATUS libnet_rpc_useradd(struct dcerpc_pipe *p,
			    TALLOC_CTX *mem_ctx,
			    struct libnet_rpc_useradd *io)
{
	struct composite_context *c = libnet_rpc_useradd_send(p, io, NULL);
	return libnet_rpc_useradd_recv(c, mem_ctx, io);
}



/*
 * Composite USER DELETE functionality
 */


struct userdel_state {
	struct dcerpc_pipe        *pipe;
	struct policy_handle      domain_handle;
	struct policy_handle      user_handle;
	struct samr_LookupNames   lookupname;
	struct samr_OpenUser      openuser;
	struct samr_DeleteUser    deleteuser;

	/* information about the progress */
	void (*monitor_fn)(struct monitor_msg *);
};


static void continue_userdel_name_found(struct rpc_request *req);
static void continue_userdel_user_opened(struct rpc_request* req);
static void continue_userdel_deleted(struct rpc_request *req);


/**
 * Stage 1: Lookup the user name and resolve it to rid
 */
static void continue_userdel_name_found(struct rpc_request *req)
{
	struct composite_context *c;
	struct userdel_state *s;
	struct rpc_request *openuser_req;
	struct monitor_msg msg;

	c = talloc_get_type(req->async.private_data, struct composite_context);
	s = talloc_get_type(c->private_data, struct userdel_state);

	/* receive samr_LookupNames result */
	c->status = dcerpc_ndr_request_recv(req);
	if (!composite_is_ok(c)) return;

	c->status = s->lookupname.out.result;
	if (!NT_STATUS_IS_OK(c->status)) {
		composite_error(c, c->status);
		return;
	}

	/* what to do when there's no user account to delete
	   and what if there's more than one rid resolved */
	if (!s->lookupname.out.rids.count) {
		c->status = NT_STATUS_NO_SUCH_USER;
		composite_error(c, c->status);
		return;

	} else if (!s->lookupname.out.rids.count > 1) {
		c->status = NT_STATUS_INVALID_ACCOUNT_NAME;
		composite_error(c, c->status);
		return;
	}

	/* issue a monitor message */
	if (s->monitor_fn) {
		struct msg_rpc_lookup_name msg_lookup;

		msg_lookup.rid   = s->lookupname.out.rids.ids;
		msg_lookup.count = s->lookupname.out.rids.count;

		msg.type      = mon_SamrLookupName;
		msg.data      = (void*)&msg_lookup;
		msg.data_size = sizeof(msg_lookup);
		s->monitor_fn(&msg);
	}

	/* prepare the arguments for rpc call */
	s->openuser.in.domain_handle = &s->domain_handle;
	s->openuser.in.rid           = s->lookupname.out.rids.ids[0];
	s->openuser.in.access_mask   = SEC_FLAG_MAXIMUM_ALLOWED;
	s->openuser.out.user_handle  = &s->user_handle;

	/* send rpc request */
	openuser_req = dcerpc_samr_OpenUser_send(s->pipe, c, &s->openuser);
	if (composite_nomem(openuser_req, c)) return;

	composite_continue_rpc(c, openuser_req, continue_userdel_user_opened, c);
}


/**
 * Stage 2: Open user account.
 */
static void continue_userdel_user_opened(struct rpc_request* req)
{
	struct composite_context *c;
	struct userdel_state *s;
	struct rpc_request *deluser_req;
	struct monitor_msg msg;

	c = talloc_get_type(req->async.private_data, struct composite_context);
	s = talloc_get_type(c->private_data, struct userdel_state);

	/* receive samr_OpenUser result */
	c->status = dcerpc_ndr_request_recv(req);
	if (!composite_is_ok(c)) return;

	c->status = s->openuser.out.result;
	if (!NT_STATUS_IS_OK(c->status)) {
		composite_error(c, c->status);
		return;
	}
	
	/* issue a monitor message */
	if (s->monitor_fn) {
		struct msg_rpc_open_user msg_open;

		msg_open.rid         = s->openuser.in.rid;
		msg_open.access_mask = s->openuser.in.access_mask;

		msg.type      = mon_SamrOpenUser;
		msg.data      = (void*)&msg_open;
		msg.data_size = sizeof(msg_open);
		s->monitor_fn(&msg);
	}

	/* prepare the final rpc call arguments */
	s->deleteuser.in.user_handle   = &s->user_handle;
	s->deleteuser.out.user_handle  = &s->user_handle;
	
	/* send rpc request */
	deluser_req = dcerpc_samr_DeleteUser_send(s->pipe, c, &s->deleteuser);
	if (composite_nomem(deluser_req, c)) return;

	/* callback handler setup */
	composite_continue_rpc(c, deluser_req, continue_userdel_deleted, c);
}


/**
 * Stage 3: Delete user account
 */
static void continue_userdel_deleted(struct rpc_request *req)
{
	struct composite_context *c;
	struct userdel_state *s;
	struct monitor_msg msg;

	c = talloc_get_type(req->async.private_data, struct composite_context);
	s = talloc_get_type(c->private_data, struct userdel_state);

	/* receive samr_DeleteUser result */
	c->status = dcerpc_ndr_request_recv(req);
	if (!composite_is_ok(c)) return;

	/* return the actual function call status */
	c->status = s->deleteuser.out.result;
	if (!NT_STATUS_IS_OK(c->status)) {
		composite_error(c, c->status);
		return;
	}
	
	/* issue a monitor message */
	if (s->monitor_fn) {
		msg.type      = mon_SamrDeleteUser;
		msg.data      = NULL;
		msg.data_size = 0;
		s->monitor_fn(&msg);
	}

	composite_done(c);
}


/**
 * Sends asynchronous userdel request
 *
 * @param p dce/rpc call pipe
 * @param io arguments and results of the call
 * @param monitor monitor function for providing information about the progress
 */

struct composite_context *libnet_rpc_userdel_send(struct dcerpc_pipe *p,
						  struct libnet_rpc_userdel *io,
						  void (*monitor)(struct monitor_msg*))
{
	struct composite_context *c;
	struct userdel_state *s;
	struct rpc_request *lookup_req;

	/* composite context allocation and setup */
	c = composite_create(p, dcerpc_event_context(p));
	if (c == NULL) return NULL;

	s = talloc_zero(c, struct userdel_state);
	if (composite_nomem(s, c)) return c;

	c->private_data  = s;

	/* store function parameters in the state structure */
	s->pipe          = p;
	s->domain_handle = io->in.domain_handle;
	s->monitor_fn    = monitor;
	
	/* preparing parameters to send rpc request */
	s->lookupname.in.domain_handle = &io->in.domain_handle;
	s->lookupname.in.num_names     = 1;
	s->lookupname.in.names         = talloc_zero(s, struct lsa_String);
	s->lookupname.in.names->string = io->in.username;

	/* send the request */
	lookup_req = dcerpc_samr_LookupNames_send(p, c, &s->lookupname);
	if (composite_nomem(lookup_req, c)) return c;

	/* set the next stage */
	composite_continue_rpc(c, lookup_req, continue_userdel_name_found, c);
	return c;
}


/**
 * Waits for and receives results of asynchronous userdel call
 *
 * @param c composite context returned by asynchronous userdel call
 * @param mem_ctx memory context of the call
 * @param io pointer to results (and arguments) of the call
 * @return nt status code of execution
 */

NTSTATUS libnet_rpc_userdel_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
				 struct libnet_rpc_userdel *io)
{
	NTSTATUS status;
	struct userdel_state *s;
	
	status = composite_wait(c);

	if (NT_STATUS_IS_OK(status) && io) {
		s  = talloc_get_type(c->private_data, struct userdel_state);
		io->out.user_handle = s->user_handle;
	}

	talloc_free(c);
	return status;
}


/**
 * Synchronous version of userdel call
 *
 * @param pipe dce/rpc call pipe
 * @param mem_ctx memory context for the call
 * @param io arguments and results of the call
 * @return nt status code of execution
 */

NTSTATUS libnet_rpc_userdel(struct dcerpc_pipe *p,