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samba-mirror/source4/libnet/userinfo.c
Stefan Metzmacher 1af925f394 r14860: create libcli/security/security.h
metze
(This used to be commit 9ec706238c)
2007-10-10 13:59:44 -05:00

289 lines
7.5 KiB
C

/*
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
a composite function for getting user information via samr pipe
*/
#include "includes.h"
#include "libcli/composite/composite.h"
#include "librpc/gen_ndr/security.h"
#include "libcli/security/security.h"
#include "libnet/composite.h"
#include "libnet/userinfo.h"
#include "librpc/gen_ndr/ndr_samr_c.h"
static void userinfo_handler(struct rpc_request *req);
enum userinfo_stage { USERINFO_OPENUSER, USERINFO_GETUSER, USERINFO_CLOSEUSER };
struct userinfo_state {
enum userinfo_stage stage;
struct dcerpc_pipe *pipe;
struct rpc_request *req;
struct policy_handle user_handle;
uint16_t level;
struct samr_OpenUser openuser;
struct samr_QueryUserInfo queryuserinfo;
struct samr_Close samrclose;
union samr_UserInfo *info;
/* information about the progress */
void (*monitor_fn)(struct monitor_msg *);
};
/**
* Stage 1: Open user policy handle in SAM server.
*/
static NTSTATUS userinfo_openuser(struct composite_context *c,
struct userinfo_state *s)
{
/* receive samr_OpenUser reply */
c->status = dcerpc_ndr_request_recv(s->req);
NT_STATUS_NOT_OK_RETURN(c->status);
/* prepare parameters for QueryUserInfo call */
s->queryuserinfo.in.user_handle = &s->user_handle;
s->queryuserinfo.in.level = s->level;
/* queue rpc call, set event handling and new state */
s->req = dcerpc_samr_QueryUserInfo_send(s->pipe, c, &s->queryuserinfo);
if (s->req == NULL) goto failure;
s->req->async.callback = userinfo_handler;
s->req->async.private = c;
s->stage = USERINFO_GETUSER;
return NT_STATUS_OK;
failure:
return NT_STATUS_UNSUCCESSFUL;
}
/**
* Stage 2: Get requested user information.
*/
static NTSTATUS userinfo_getuser(struct composite_context *c,
struct userinfo_state *s)
{
/* receive samr_QueryUserInfo reply */
c->status = dcerpc_ndr_request_recv(s->req);
NT_STATUS_NOT_OK_RETURN(c->status);
s->info = talloc_steal(s, s->queryuserinfo.out.info);
/* prepare arguments for Close call */
s->samrclose.in.handle = &s->user_handle;
s->samrclose.out.handle = &s->user_handle;
/* queue rpc call, set event handling and new state */
s->req = dcerpc_samr_Close_send(s->pipe, c, &s->samrclose);
s->req->async.callback = userinfo_handler;
s->req->async.private = c;
s->stage = USERINFO_CLOSEUSER;
return NT_STATUS_OK;
}
/**
* Stage 3: Close policy handle associated with opened user.
*/
static NTSTATUS userinfo_closeuser(struct composite_context *c,
struct userinfo_state *s)
{
/* receive samr_Close reply */
c->status = dcerpc_ndr_request_recv(s->req);
NT_STATUS_NOT_OK_RETURN(c->status);
c->state = COMPOSITE_STATE_DONE;
return NT_STATUS_OK;
}
/**
* Event handler for asynchronous request. Handles transition through
* intermediate stages of the call.
*
* @param req rpc call context
*/
static void userinfo_handler(struct rpc_request *req)
{
struct composite_context *c = req->async.private;
struct userinfo_state *s = talloc_get_type(c->private_data, struct userinfo_state);
struct monitor_msg msg;
struct msg_rpc_open_user *msg_open;
struct msg_rpc_query_user *msg_query;
struct msg_rpc_close_user *msg_close;
/* Stages of the call */
switch (s->stage) {
case USERINFO_OPENUSER:
c->status = userinfo_openuser(c, s);
msg.type = rpc_open_user;
msg_open = talloc(s, struct msg_rpc_open_user);
msg_open->rid = s->openuser.in.rid;
msg_open->access_mask = s->openuser.in.access_mask;
msg.data = (void*)msg_open;
msg.data_size = sizeof(*msg_open);
break;
case USERINFO_GETUSER:
c->status = userinfo_getuser(c, s);
msg.type = rpc_query_user;
msg_query = talloc(s, struct msg_rpc_query_user);
msg_query->level = s->queryuserinfo.in.level;
msg.data = (void*)msg_query;
msg.data_size = sizeof(*msg_query);
break;
case USERINFO_CLOSEUSER:
c->status = userinfo_closeuser(c, s);
msg.type = rpc_close_user;
msg_close = talloc(s, struct msg_rpc_close_user);
msg_close->rid = s->openuser.in.rid;
msg.data = (void*)msg_close;
msg.data_size = sizeof(*msg_close);
break;
}
if (!NT_STATUS_IS_OK(c->status)) {
c->state = COMPOSITE_STATE_ERROR;
}
if (s->monitor_fn) {
s->monitor_fn(&msg);
}
if (c->state >= COMPOSITE_STATE_DONE &&
c->async.fn) {
c->async.fn(c);
}
}
/**
* Sends asynchronous userinfo request
*
* @param p dce/rpc call pipe
* @param io arguments and results of the call
*/
struct composite_context *libnet_rpc_userinfo_send(struct dcerpc_pipe *p,
struct libnet_rpc_userinfo *io,
void (*monitor)(struct monitor_msg*))
{
struct composite_context *c;
struct userinfo_state *s;
struct dom_sid *sid;
if (!p || !io) return NULL;
c = talloc_zero(p, struct composite_context);
if (c == NULL) goto failure;
s = talloc_zero(c, struct userinfo_state);
if (s == NULL) goto failure;
s->level = io->in.level;
s->pipe = p;
s->monitor_fn = monitor;
sid = dom_sid_parse_talloc(s, io->in.sid);
if (sid == NULL) goto failure;
c->state = COMPOSITE_STATE_IN_PROGRESS;
c->private_data = s;
c->event_ctx = dcerpc_event_context(p);
/* preparing parameters to send rpc request */
s->openuser.in.domain_handle = &io->in.domain_handle;
s->openuser.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
s->openuser.in.rid = sid->sub_auths[sid->num_auths - 1];
s->openuser.out.user_handle = &s->user_handle;
/* send request */
s->req = dcerpc_samr_OpenUser_send(p, c, &s->openuser);
/* callback handler */
s->req->async.callback = userinfo_handler;
s->req->async.private = c;
s->stage = USERINFO_OPENUSER;
return c;
failure:
talloc_free(c);
return NULL;
}
/**
* Waits for and receives result of asynchronous userinfo call
*
* @param c composite context returned by asynchronous userinfo 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_userinfo_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
struct libnet_rpc_userinfo *io)
{
NTSTATUS status;
struct userinfo_state *s;
/* wait for results of sending request */
status = composite_wait(c);
if (NT_STATUS_IS_OK(status) && io) {
s = talloc_get_type(c->private_data, struct userinfo_state);
talloc_steal(mem_ctx, s->info);
io->out.info = *s->info;
}
/* memory context associated to composite context is no longer needed */
talloc_free(c);
return status;
}
/**
* Synchronous version of userinfo 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_userinfo(struct dcerpc_pipe *p,
TALLOC_CTX *mem_ctx,
struct libnet_rpc_userinfo *io)
{
struct composite_context *c = libnet_rpc_userinfo_send(p, io, NULL);
return libnet_rpc_userinfo_recv(c, mem_ctx, io);
}