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samba-mirror/source4/libnet/libnet_user.c
Matthias Dieter Wallnöfer ab3e20b82f s4:libnet - free the "c" context also on error conditions
(and if it's NULL then "talloc_free" does ignore it)
2010-08-14 18:48:20 +02:00

1224 lines
36 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 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 "libnet/libnet.h"
#include "libcli/composite/composite.h"
#include "auth/credentials/credentials.h"
#include "librpc/ndr/libndr.h"
#include "librpc/gen_ndr/samr.h"
#include "librpc/gen_ndr/ndr_samr_c.h"
#include "librpc/gen_ndr/lsa.h"
#include "librpc/gen_ndr/ndr_lsa_c.h"
#include "libcli/security/security.h"
struct create_user_state {
struct libnet_CreateUser r;
struct libnet_DomainOpen domain_open;
struct libnet_rpc_useradd user_add;
struct libnet_context *ctx;
/* information about the progress */
void (*monitor_fn)(struct monitor_msg *);
};
static void continue_rpc_useradd(struct composite_context *ctx);
static void continue_domain_open_create(struct composite_context *ctx);
/**
* Sends request to create user account
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r pointer to a structure containing arguments and results of this call
* @param monitor function pointer for receiving monitor messages
* @return compostite context of this request
*/
struct composite_context* libnet_CreateUser_send(struct libnet_context *ctx,
TALLOC_CTX *mem_ctx,
struct libnet_CreateUser *r,
void (*monitor)(struct monitor_msg*))
{
struct composite_context *c;
struct create_user_state *s;
struct composite_context *create_req;
bool prereq_met = false;
/* composite context allocation and setup */
c = composite_create(mem_ctx, ctx->event_ctx);
if (c == NULL) return NULL;
s = talloc_zero(c, struct create_user_state);
if (composite_nomem(s, c)) return c;
c->private_data = s;
/* store arguments in the state structure */
s->ctx = ctx;
s->r = *r;
ZERO_STRUCT(s->r.out);
/* prerequisite: make sure the domain is opened */
prereq_met = samr_domain_opened(ctx, s->r.in.domain_name, &c, &s->domain_open,
continue_domain_open_create, monitor);
if (!prereq_met) return c;
/* prepare arguments for useradd call */
s->user_add.in.username = r->in.user_name;
s->user_add.in.domain_handle = ctx->samr.handle;
/* send the request */
create_req = libnet_rpc_useradd_send(ctx->samr.pipe, &s->user_add, monitor);
if (composite_nomem(create_req, c)) return c;
/* set the next stage */
composite_continue(c, create_req, continue_rpc_useradd, c);
return c;
}
/*
* Stage 0.5 (optional): receive result of domain open request
* and send useradd request
*/
static void continue_domain_open_create(struct composite_context *ctx)
{
struct composite_context *c;
struct create_user_state *s;
struct composite_context *create_req;
struct monitor_msg msg;
c = talloc_get_type(ctx->async.private_data, struct composite_context);
s = talloc_get_type(c->private_data, struct create_user_state);
/* receive result of DomainOpen call */
c->status = libnet_DomainOpen_recv(ctx, s->ctx, c, &s->domain_open);
if (!composite_is_ok(c)) return;
/* send monitor message */
if (s->monitor_fn) s->monitor_fn(&msg);
/* prepare arguments for useradd call */
s->user_add.in.username = s->r.in.user_name;
s->user_add.in.domain_handle = s->ctx->samr.handle;
/* send the request */
create_req = libnet_rpc_useradd_send(s->ctx->samr.pipe, &s->user_add, s->monitor_fn);
if (composite_nomem(create_req, c)) return;
/* set the next stage */
composite_continue(c, create_req, continue_rpc_useradd, c);
}
/*
* Stage 1: receive result of useradd call
*/
static void continue_rpc_useradd(struct composite_context *ctx)
{
struct composite_context *c;
struct create_user_state *s;
struct monitor_msg msg;
c = talloc_get_type(ctx->async.private_data, struct composite_context);
s = talloc_get_type(c->private_data, struct create_user_state);
/* receive result of the call */
c->status = libnet_rpc_useradd_recv(ctx, c, &s->user_add);
if (!composite_is_ok(c)) return;
/* send monitor message */
if (s->monitor_fn) s->monitor_fn(&msg);
/* we're done */
composite_done(c);
}
/**
* Receive result of CreateUser call
*
* @param c composite context returned by send request routine
* @param mem_ctx memory context of this call
* @param r pointer to a structure containing arguments and result of this call
* @return nt status
*/
NTSTATUS libnet_CreateUser_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
struct libnet_CreateUser *r)
{
NTSTATUS status;
struct create_user_state *s;
r->out.error_string = NULL;
/* wait for result of async request and check status code */
status = composite_wait(c);
if (!NT_STATUS_IS_OK(status)) {
s = talloc_get_type(c->private_data, struct create_user_state);
r->out.error_string = talloc_strdup(mem_ctx, nt_errstr(status));
}
talloc_free(c);
return status;
}
/**
* Synchronous version of CreateUser call
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r pointer to a structure containing arguments and result of this call
* @return nt status
*/
NTSTATUS libnet_CreateUser(struct libnet_context *ctx, TALLOC_CTX *mem_ctx,
struct libnet_CreateUser *r)
{
struct composite_context *c;
c = libnet_CreateUser_send(ctx, mem_ctx, r, NULL);
return libnet_CreateUser_recv(c, mem_ctx, r);
}
struct delete_user_state {
struct libnet_DeleteUser r;
struct libnet_context *ctx;
struct libnet_DomainOpen domain_open;
struct libnet_rpc_userdel user_del;
/* information about the progress */
void (*monitor_fn)(struct monitor_msg *);
};
static void continue_rpc_userdel(struct composite_context *ctx);
static void continue_domain_open_delete(struct composite_context *ctx);
/**
* Sends request to delete user account
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r pointer to structure containing arguments and result of this call
* @param monitor function pointer for receiving monitor messages
*/
struct composite_context *libnet_DeleteUser_send(struct libnet_context *ctx,
TALLOC_CTX *mem_ctx,
struct libnet_DeleteUser *r,
void (*monitor)(struct monitor_msg*))
{
struct composite_context *c;
struct delete_user_state *s;
struct composite_context *delete_req;
bool prereq_met = false;
/* composite context allocation and setup */
c = composite_create(mem_ctx, ctx->event_ctx);
if (c == NULL) return NULL;
s = talloc_zero(c, struct delete_user_state);
if (composite_nomem(s, c)) return c;
c->private_data = s;
/* store arguments in state structure */
s->ctx = ctx;
s->r = *r;
ZERO_STRUCT(s->r.out);
/* prerequisite: make sure the domain is opened before proceeding */
prereq_met = samr_domain_opened(ctx, s->r.in.domain_name, &c, &s->domain_open,
continue_domain_open_delete, monitor);
if (!prereq_met) return c;
/* prepare arguments for userdel call */
s->user_del.in.username = r->in.user_name;
s->user_del.in.domain_handle = ctx->samr.handle;
/* send request */
delete_req = libnet_rpc_userdel_send(ctx->samr.pipe, &s->user_del, monitor);
if (composite_nomem(delete_req, c)) return c;
/* set the next stage */
composite_continue(c, delete_req, continue_rpc_userdel, c);
return c;
}
/*
* Stage 0.5 (optional): receive result of domain open request
* and send useradd request
*/
static void continue_domain_open_delete(struct composite_context *ctx)
{
struct composite_context *c;
struct delete_user_state *s;
struct composite_context *delete_req;
struct monitor_msg msg;
c = talloc_get_type(ctx->async.private_data, struct composite_context);
s = talloc_get_type(c->private_data, struct delete_user_state);
/* receive result of DomainOpen call */
c->status = libnet_DomainOpen_recv(ctx, s->ctx, c, &s->domain_open);
if (!composite_is_ok(c)) return;
/* send monitor message */
if (s->monitor_fn) s->monitor_fn(&msg);
/* prepare arguments for userdel call */
s->user_del.in.username = s->r.in.user_name;
s->user_del.in.domain_handle = s->ctx->samr.handle;
/* send request */
delete_req = libnet_rpc_userdel_send(s->ctx->samr.pipe, &s->user_del, s->monitor_fn);
if (composite_nomem(delete_req, c)) return;
/* set the next stage */
composite_continue(c, delete_req, continue_rpc_userdel, c);
}
/*
* Stage 1: receive result of userdel call and finish the composite function
*/
static void continue_rpc_userdel(struct composite_context *ctx)
{
struct composite_context *c;
struct delete_user_state *s;
struct monitor_msg msg;
c = talloc_get_type(ctx->async.private_data, struct composite_context);
s = talloc_get_type(c->private_data, struct delete_user_state);
/* receive result of userdel call */
c->status = libnet_rpc_userdel_recv(ctx, c, &s->user_del);
if (!composite_is_ok(c)) return;
/* send monitor message */
if (s->monitor_fn) s->monitor_fn(&msg);
/* we're done */
composite_done(c);
}
/**
* Receives result of asynchronous DeleteUser call
*
* @param c composite context returned by async DeleteUser call
* @param mem_ctx memory context of this call
* @param r pointer to structure containing arguments and result
*/
NTSTATUS libnet_DeleteUser_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
struct libnet_DeleteUser *r)
{
NTSTATUS status;
struct delete_user_state *s;
r->out.error_string = NULL;
/* wait for result of async request and check status code */
status = composite_wait(c);
if (!NT_STATUS_IS_OK(status)) {
s = talloc_get_type(c->private_data, struct delete_user_state);
r->out.error_string = talloc_steal(mem_ctx, s->r.out.error_string);
}
talloc_free(c);
return status;
}
/**
* Synchronous version of DeleteUser call
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r pointer to structure containing arguments and result
*/
NTSTATUS libnet_DeleteUser(struct libnet_context *ctx, TALLOC_CTX *mem_ctx,
struct libnet_DeleteUser *r)
{
struct composite_context *c;
c = libnet_DeleteUser_send(ctx, mem_ctx, r, NULL);
return libnet_DeleteUser_recv(c, mem_ctx, r);
}
struct modify_user_state {
struct libnet_ModifyUser r;
struct libnet_context *ctx;
struct libnet_DomainOpen domain_open;
struct libnet_rpc_userinfo user_info;
struct libnet_rpc_usermod user_mod;
void (*monitor_fn)(struct monitor_msg *);
};
static void continue_rpc_usermod(struct composite_context *ctx);
static void continue_domain_open_modify(struct composite_context *ctx);
static NTSTATUS set_user_changes(TALLOC_CTX *mem_ctx, struct usermod_change *mod,
struct libnet_rpc_userinfo *info, struct libnet_ModifyUser *r);
static void continue_rpc_userinfo(struct composite_context *ctx);
/**
* Sends request to modify user account
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r pointer to structure containing arguments and result of this call
* @param monitor function pointer for receiving monitor messages
*/
struct composite_context *libnet_ModifyUser_send(struct libnet_context *ctx,
TALLOC_CTX *mem_ctx,
struct libnet_ModifyUser *r,
void (*monitor)(struct monitor_msg*))
{
const uint16_t level = 21;
struct composite_context *c;
struct modify_user_state *s;
struct composite_context *userinfo_req;
bool prereq_met = false;
c = composite_create(mem_ctx, ctx->event_ctx);
if (c == NULL) return NULL;
s = talloc_zero(c, struct modify_user_state);
if (composite_nomem(s, c)) return c;
c->private_data = s;
s->ctx = ctx;
s->r = *r;
prereq_met = samr_domain_opened(ctx, s->r.in.domain_name, &c, &s->domain_open,
continue_domain_open_modify, monitor);
if (!prereq_met) return c;
s->user_info.in.username = r->in.user_name;
s->user_info.in.domain_handle = ctx->samr.handle;
s->user_info.in.level = level;
userinfo_req = libnet_rpc_userinfo_send(ctx->samr.pipe, &s->user_info, monitor);
if (composite_nomem(userinfo_req, c)) return c;
composite_continue(c, userinfo_req, continue_rpc_userinfo, c);
return c;
}
/*
* Stage 0.5 (optional): receive result of domain open request
* and send userinfo request
*/
static void continue_domain_open_modify(struct composite_context *ctx)
{
const uint16_t level = 21;
struct composite_context *c;
struct modify_user_state *s;
struct composite_context *userinfo_req;
struct monitor_msg msg;
c = talloc_get_type(ctx->async.private_data, struct composite_context);
s = talloc_get_type(c->private_data, struct modify_user_state);
c->status = libnet_DomainOpen_recv(ctx, s->ctx, c, &s->domain_open);
if (!composite_is_ok(c)) return;
if (s->monitor_fn) s->monitor_fn(&msg);
s->user_info.in.domain_handle = s->ctx->samr.handle;
s->user_info.in.username = s->r.in.user_name;
s->user_info.in.level = level;
userinfo_req = libnet_rpc_userinfo_send(s->ctx->samr.pipe, &s->user_info, s->monitor_fn);
if (composite_nomem(userinfo_req, c)) return;
composite_continue(c, userinfo_req, continue_rpc_userinfo, c);
}
/*
* Stage 1: receive result of userinfo call, prepare user changes
* (set the fields a caller required to change) and send usermod request
*/
static void continue_rpc_userinfo(struct composite_context *ctx)
{
struct composite_context *c;
struct modify_user_state *s;
struct composite_context *usermod_req;
c = talloc_get_type(ctx->async.private_data, struct composite_context);
s = talloc_get_type(c->private_data, struct modify_user_state);
c->status = libnet_rpc_userinfo_recv(ctx, c, &s->user_info);
if (!composite_is_ok(c)) return;
s->user_mod.in.domain_handle = s->ctx->samr.handle;
s->user_mod.in.username = s->r.in.user_name;
c->status = set_user_changes(c, &s->user_mod.in.change, &s->user_info, &s->r);
usermod_req = libnet_rpc_usermod_send(s->ctx->samr.pipe, &s->user_mod, s->monitor_fn);
if (composite_nomem(usermod_req, c)) return;
composite_continue(c, usermod_req, continue_rpc_usermod, c);
}
/*
* Prepare user changes: compare userinfo result to requested changes and
* set the field values and flags accordingly for user modify call
*/
static NTSTATUS set_user_changes(TALLOC_CTX *mem_ctx, struct usermod_change *mod,
struct libnet_rpc_userinfo *info, struct libnet_ModifyUser *r)
{
struct samr_UserInfo21 *user;
if (mod == NULL || info == NULL || r == NULL || info->in.level != 21) {
return NT_STATUS_INVALID_PARAMETER;
}
user = &info->out.info.info21;
mod->fields = 0; /* reset flag field before setting individual flags */
/* account name change */
SET_FIELD_LSA_STRING(r->in, user, mod, account_name, USERMOD_FIELD_ACCOUNT_NAME);
/* full name change */
SET_FIELD_LSA_STRING(r->in, user, mod, full_name, USERMOD_FIELD_FULL_NAME);
/* description change */
SET_FIELD_LSA_STRING(r->in, user, mod, description, USERMOD_FIELD_DESCRIPTION);
/* comment change */
SET_FIELD_LSA_STRING(r->in, user, mod, comment, USERMOD_FIELD_COMMENT);
/* home directory change */
SET_FIELD_LSA_STRING(r->in, user, mod, home_directory, USERMOD_FIELD_HOME_DIRECTORY);
/* home drive change */
SET_FIELD_LSA_STRING(r->in, user, mod, home_drive, USERMOD_FIELD_HOME_DRIVE);
/* logon script change */
SET_FIELD_LSA_STRING(r->in, user, mod, logon_script, USERMOD_FIELD_LOGON_SCRIPT);
/* profile path change */
SET_FIELD_LSA_STRING(r->in, user, mod, profile_path, USERMOD_FIELD_PROFILE_PATH);
/* account expiry change */
SET_FIELD_NTTIME(r->in, user, mod, acct_expiry, USERMOD_FIELD_ACCT_EXPIRY);
/* account flags change */
SET_FIELD_ACCT_FLAGS(r->in, user, mod, acct_flags, USERMOD_FIELD_ACCT_FLAGS);
return NT_STATUS_OK;
}
/*
* Stage 2: receive result of usermod request and finish the composite function
*/
static void continue_rpc_usermod(struct composite_context *ctx)
{
struct composite_context *c;
struct modify_user_state *s;
struct monitor_msg msg;
c = talloc_get_type(ctx->async.private_data, struct composite_context);
s = talloc_get_type(c->private_data, struct modify_user_state);
c->status = libnet_rpc_usermod_recv(ctx, c, &s->user_mod);
if (!composite_is_ok(c)) return;
if (s->monitor_fn) s->monitor_fn(&msg);
composite_done(c);
}
/**
* Receive result of ModifyUser call
*
* @param c composite context returned by send request routine
* @param mem_ctx memory context of this call
* @param r pointer to a structure containing arguments and result of this call
* @return nt status
*/
NTSTATUS libnet_ModifyUser_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
struct libnet_ModifyUser *r)
{
NTSTATUS status = composite_wait(c);
talloc_free(c);
return status;
}
/**
* Synchronous version of ModifyUser call
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r pointer to a structure containing arguments and result of this call
* @return nt status
*/
NTSTATUS libnet_ModifyUser(struct libnet_context *ctx, TALLOC_CTX *mem_ctx,
struct libnet_ModifyUser *r)
{
struct composite_context *c;
c = libnet_ModifyUser_send(ctx, mem_ctx, r, NULL);
return libnet_ModifyUser_recv(c, mem_ctx, r);
}
struct user_info_state {
struct libnet_context *ctx;
const char *domain_name;
enum libnet_UserInfo_level level;
const char *user_name;
const char *sid_string;
struct libnet_LookupName lookup;
struct libnet_DomainOpen domopen;
struct libnet_rpc_userinfo userinfo;
/* information about the progress */
void (*monitor_fn)(struct monitor_msg *);
};
static void continue_name_found(struct composite_context *ctx);
static void continue_domain_open_info(struct composite_context *ctx);
static void continue_info_received(struct composite_context *ctx);
/**
* Sends request to get user account information
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r pointer to a structure containing arguments and results of this call
* @param monitor function pointer for receiving monitor messages
* @return compostite context of this request
*/
struct composite_context* libnet_UserInfo_send(struct libnet_context *ctx,
TALLOC_CTX *mem_ctx,
struct libnet_UserInfo *r,
void (*monitor)(struct monitor_msg*))
{
struct composite_context *c;
struct user_info_state *s;
struct composite_context *lookup_req, *info_req;
bool prereq_met = false;
/* composite context allocation and setup */
c = composite_create(mem_ctx, ctx->event_ctx);
if (c == NULL) return NULL;
s = talloc_zero(c, struct user_info_state);
if (composite_nomem(s, c)) return c;
c->private_data = s;
/* store arguments in the state structure */
s->monitor_fn = monitor;
s->ctx = ctx;
s->domain_name = talloc_strdup(c, r->in.domain_name);
s->level = r->in.level;
switch (s->level) {
case USER_INFO_BY_NAME:
s->user_name = talloc_strdup(c, r->in.data.user_name);
s->sid_string = NULL;
break;
case USER_INFO_BY_SID:
s->user_name = NULL;
s->sid_string = dom_sid_string(c, r->in.data.user_sid);
break;
}
/* prerequisite: make sure the domain is opened */
prereq_met = samr_domain_opened(ctx, s->domain_name, &c, &s->domopen,
continue_domain_open_info, monitor);
if (!prereq_met) return c;
switch (s->level) {
case USER_INFO_BY_NAME:
/* prepare arguments for LookupName call */
s->lookup.in.domain_name = s->domain_name;
s->lookup.in.name = s->user_name;
/* send the request */
lookup_req = libnet_LookupName_send(ctx, c, &s->lookup,
s->monitor_fn);
if (composite_nomem(lookup_req, c)) return c;
/* set the next stage */
composite_continue(c, lookup_req, continue_name_found, c);
break;
case USER_INFO_BY_SID:
/* prepare arguments for UserInfo call */
s->userinfo.in.domain_handle = s->ctx->samr.handle;
s->userinfo.in.sid = s->sid_string;
s->userinfo.in.level = 21;
/* send the request */
info_req = libnet_rpc_userinfo_send(s->ctx->samr.pipe,
&s->userinfo,
s->monitor_fn);
if (composite_nomem(info_req, c)) return c;
/* set the next stage */
composite_continue(c, info_req, continue_info_received, c);
break;
}
return c;
}
/*
* Stage 0.5 (optional): receive result of domain open request
* and send LookupName request
*/
static void continue_domain_open_info(struct composite_context *ctx)
{
struct composite_context *c;
struct user_info_state *s;
struct composite_context *lookup_req, *info_req;
struct monitor_msg msg;
c = talloc_get_type(ctx->async.private_data, struct composite_context);
s = talloc_get_type(c->private_data, struct user_info_state);
/* receive result of DomainOpen call */
c->status = libnet_DomainOpen_recv(ctx, s->ctx, c, &s->domopen);
if (!composite_is_ok(c)) return;
/* send monitor message */
if (s->monitor_fn) s->monitor_fn(&msg);
switch (s->level) {
case USER_INFO_BY_NAME:
/* prepare arguments for LookupName call */
s->lookup.in.domain_name = s->domain_name;
s->lookup.in.name = s->user_name;
/* send the request */
lookup_req = libnet_LookupName_send(s->ctx, c, &s->lookup, s->monitor_fn);
if (composite_nomem(lookup_req, c)) return;
/* set the next stage */
composite_continue(c, lookup_req, continue_name_found, c);
break;
case USER_INFO_BY_SID:
/* prepare arguments for UserInfo call */
s->userinfo.in.domain_handle = s->ctx->samr.handle;
s->userinfo.in.sid = s->sid_string;
s->userinfo.in.level = 21;
/* send the request */
info_req = libnet_rpc_userinfo_send(s->ctx->samr.pipe,
&s->userinfo,
s->monitor_fn);
if (composite_nomem(info_req, c)) return;
/* set the next stage */
composite_continue(c, info_req, continue_info_received, c);
break;
}
}
/*
* Stage 1: receive the name (if found) and send userinfo request
*/
static void continue_name_found(struct composite_context *ctx)
{
struct composite_context *c;
struct user_info_state *s;
struct composite_context *info_req;
c = talloc_get_type(ctx->async.private_data, struct composite_context);
s = talloc_get_type(c->private_data, struct user_info_state);
/* receive result of LookupName call */
c->status = libnet_LookupName_recv(ctx, c, &s->lookup);
if (!composite_is_ok(c)) return;
/* we're only interested in user accounts this time */
if (s->lookup.out.sid_type != SID_NAME_USER) {
composite_error(c, NT_STATUS_NO_SUCH_USER);
return;
}
/* prepare arguments for UserInfo call */
s->userinfo.in.domain_handle = s->ctx->samr.handle;
s->userinfo.in.sid = s->lookup.out.sidstr;
s->userinfo.in.level = 21;
/* send the request */
info_req = libnet_rpc_userinfo_send(s->ctx->samr.pipe, &s->userinfo, s->monitor_fn);
if (composite_nomem(info_req, c)) return;
/* set the next stage */
composite_continue(c, info_req, continue_info_received, c);
}
/*
* Stage 2: receive user account information and finish the composite function
*/
static void continue_info_received(struct composite_context *ctx)
{
struct composite_context *c;
struct user_info_state *s;
c = talloc_get_type(ctx->async.private_data, struct composite_context);
s = talloc_get_type(c->private_data, struct user_info_state);
/* receive result of userinfo call */
c->status = libnet_rpc_userinfo_recv(ctx, c, &s->userinfo);
if (!composite_is_ok(c)) return;
composite_done(c);
}
/**
* Receive result of UserInfo call
*
* @param c composite context returned by send request routine
* @param mem_ctx memory context of this call
* @param r pointer to a structure containing arguments and result of this call
* @return nt status
*/
NTSTATUS libnet_UserInfo_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
struct libnet_UserInfo *r)
{
NTSTATUS status;
struct user_info_state *s;
status = composite_wait(c);
if (NT_STATUS_IS_OK(status) && r != NULL) {
struct samr_UserInfo21 *info;
s = talloc_get_type(c->private_data, struct user_info_state);
info = &s->userinfo.out.info.info21;
r->out.user_sid = dom_sid_add_rid(mem_ctx, s->ctx->samr.sid, info->rid);
r->out.primary_group_sid = dom_sid_add_rid(mem_ctx, s->ctx->samr.sid, info->primary_gid);
/* string fields */
r->out.account_name = talloc_steal(mem_ctx, info->account_name.string);
r->out.full_name = talloc_steal(mem_ctx, info->full_name.string);
r->out.description = talloc_steal(mem_ctx, info->description.string);
r->out.home_directory = talloc_steal(mem_ctx, info->home_directory.string);
r->out.home_drive = talloc_steal(mem_ctx, info->home_drive.string);
r->out.comment = talloc_steal(mem_ctx, info->comment.string);
r->out.logon_script = talloc_steal(mem_ctx, info->logon_script.string);
r->out.profile_path = talloc_steal(mem_ctx, info->profile_path.string);
/* time fields (allocation) */
r->out.acct_expiry = talloc(mem_ctx, struct timeval);
r->out.allow_password_change = talloc(mem_ctx, struct timeval);
r->out.force_password_change = talloc(mem_ctx, struct timeval);
r->out.last_logon = talloc(mem_ctx, struct timeval);
r->out.last_logoff = talloc(mem_ctx, struct timeval);
r->out.last_password_change = talloc(mem_ctx, struct timeval);
/* time fields (converting) */
nttime_to_timeval(r->out.acct_expiry, info->acct_expiry);
nttime_to_timeval(r->out.allow_password_change, info->allow_password_change);
nttime_to_timeval(r->out.force_password_change, info->force_password_change);
nttime_to_timeval(r->out.last_logon, info->last_logon);
nttime_to_timeval(r->out.last_logoff, info->last_logoff);
nttime_to_timeval(r->out.last_password_change, info->last_password_change);
/* flag and number fields */
r->out.acct_flags = info->acct_flags;
r->out.error_string = talloc_strdup(mem_ctx, "Success");
} else {
r->out.error_string = talloc_asprintf(mem_ctx, "Error: %s", nt_errstr(status));
}
talloc_free(c);
return status;
}
/**
* Synchronous version of UserInfo call
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r pointer to a structure containing arguments and result of this call
* @return nt status
*/
NTSTATUS libnet_UserInfo(struct libnet_context *ctx, TALLOC_CTX *mem_ctx,
struct libnet_UserInfo *r)
{
struct composite_context *c;
c = libnet_UserInfo_send(ctx, mem_ctx, r, NULL);
return libnet_UserInfo_recv(c, mem_ctx, r);
}
struct userlist_state {
struct libnet_context *ctx;
const char *domain_name;
struct lsa_DomainInfo dominfo;
int page_size;
uint32_t resume_index;
struct userlist *users;
uint32_t count;
struct libnet_DomainOpen domain_open;
struct lsa_QueryInfoPolicy query_domain;
struct samr_EnumDomainUsers user_list;
void (*monitor_fn)(struct monitor_msg*);
};
static void continue_lsa_domain_opened(struct composite_context *ctx);
static void continue_domain_queried(struct tevent_req *subreq);
static void continue_samr_domain_opened(struct composite_context *ctx);
static void continue_users_enumerated(struct tevent_req *subreq);
/**
* Sends request to list (enumerate) user accounts
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r pointer to structure containing arguments and results of this call
* @param monitor function pointer for receiving monitor messages
* @return compostite context of this request
*/
struct composite_context* libnet_UserList_send(struct libnet_context *ctx,
TALLOC_CTX *mem_ctx,
struct libnet_UserList *r,
void (*monitor)(struct monitor_msg*))
{
struct composite_context *c;
struct userlist_state *s;
struct tevent_req *subreq;
bool prereq_met = false;
/* composite context allocation and setup */
c = composite_create(mem_ctx, ctx->event_ctx);
if (c == NULL) return NULL;
s = talloc_zero(c, struct userlist_state);
if (composite_nomem(s, c)) return c;
c->private_data = s;
/* store the arguments in the state structure */
s->ctx = ctx;
s->page_size = r->in.page_size;
s->resume_index = r->in.resume_index;
s->domain_name = talloc_strdup(c, r->in.domain_name);
s->monitor_fn = monitor;
/* make sure we have lsa domain handle before doing anything */
prereq_met = lsa_domain_opened(ctx, s->domain_name, &c, &s->domain_open,
continue_lsa_domain_opened, monitor);
if (!prereq_met) return c;
/* prepare arguments of QueryDomainInfo call */
s->query_domain.in.handle = &ctx->lsa.handle;
s->query_domain.in.level = LSA_POLICY_INFO_DOMAIN;
s->query_domain.out.info = talloc_zero(c, union lsa_PolicyInformation *);
if (composite_nomem(s->query_domain.out.info, c)) return c;
/* send the request */
subreq = dcerpc_lsa_QueryInfoPolicy_r_send(s, c->event_ctx,
ctx->lsa.pipe->binding_handle,
&s->query_domain);
if (composite_nomem(subreq, c)) return c;
tevent_req_set_callback(subreq, continue_domain_queried, c);
return c;
}
/*
* Stage 0.5 (optional): receive lsa domain handle and send
* request to query domain info
*/
static void continue_lsa_domain_opened(struct composite_context *ctx)
{
struct composite_context *c;
struct userlist_state *s;
struct tevent_req *subreq;
c = talloc_get_type(ctx->async.private_data, struct composite_context);
s = talloc_get_type(c->private_data, struct userlist_state);
/* receive lsa domain handle */
c->status = libnet_DomainOpen_recv(ctx, s->ctx, c, &s->domain_open);
if (!composite_is_ok(c)) return;
/* prepare arguments of QueryDomainInfo call */
s->query_domain.in.handle = &s->ctx->lsa.handle;
s->query_domain.in.level = LSA_POLICY_INFO_DOMAIN;
s->query_domain.out.info = talloc_zero(c, union lsa_PolicyInformation *);
if (composite_nomem(s->query_domain.out.info, c)) return;
/* send the request */
subreq = dcerpc_lsa_QueryInfoPolicy_r_send(s, c->event_ctx,
s->ctx->lsa.pipe->binding_handle,
&s->query_domain);
if (composite_nomem(subreq, c)) return;
tevent_req_set_callback(subreq, continue_domain_queried, c);
}
/*
* Stage 1: receive domain info and request to enum users,
* provided a valid samr handle is opened
*/
static void continue_domain_queried(struct tevent_req *subreq)
{
struct composite_context *c;
struct userlist_state *s;
bool prereq_met = false;
c = tevent_req_callback_data(subreq, struct composite_context);
s = talloc_get_type(c->private_data, struct userlist_state);
/* receive result of rpc request */
c->status = dcerpc_lsa_QueryInfoPolicy_r_recv(subreq, s);
TALLOC_FREE(subreq);
if (!composite_is_ok(c)) return;
/* get the returned domain info */
s->dominfo = (*s->query_domain.out.info)->domain;
/* make sure we have samr domain handle before continuing */
prereq_met = samr_domain_opened(s->ctx, s->domain_name, &c, &s->domain_open,
continue_samr_domain_opened, s->monitor_fn);
if (!prereq_met) return;
/* prepare arguments of EnumDomainUsers call */
s->user_list.in.domain_handle = &s->ctx->samr.handle;
s->user_list.in.max_size = s->page_size;
s->user_list.in.resume_handle = &s->resume_index;
s->user_list.in.acct_flags = ACB_NORMAL;
s->user_list.out.resume_handle = &s->resume_index;
s->user_list.out.num_entries = talloc(s, uint32_t);
if (composite_nomem(s->user_list.out.num_entries, c)) return;
s->user_list.out.sam = talloc(s, struct samr_SamArray *);
if (composite_nomem(s->user_list.out.sam, c)) return;
/* send the request */
subreq = dcerpc_samr_EnumDomainUsers_r_send(s, c->event_ctx,
s->ctx->samr.pipe->binding_handle,
&s->user_list);
if (composite_nomem(subreq, c)) return;
tevent_req_set_callback(subreq, continue_users_enumerated, c);
}
/*
* Stage 1.5 (optional): receive samr domain handle
* and request to enumerate accounts
*/
static void continue_samr_domain_opened(struct composite_context *ctx)
{
struct composite_context *c;
struct userlist_state *s;
struct tevent_req *subreq;
c = talloc_get_type(ctx->async.private_data, struct composite_context);
s = talloc_get_type(c->private_data, struct userlist_state);
/* receive samr domain handle */
c->status = libnet_DomainOpen_recv(ctx, s->ctx, c, &s->domain_open);
if (!composite_is_ok(c)) return;
/* prepare arguments of EnumDomainUsers call */
s->user_list.in.domain_handle = &s->ctx->samr.handle;
s->user_list.in.max_size = s->page_size;
s->user_list.in.resume_handle = &s->resume_index;
s->user_list.in.acct_flags = ACB_NORMAL;
s->user_list.out.resume_handle = &s->resume_index;
s->user_list.out.sam = talloc(s, struct samr_SamArray *);
if (composite_nomem(s->user_list.out.sam, c)) return;
s->user_list.out.num_entries = talloc(s, uint32_t);
if (composite_nomem(s->user_list.out.num_entries, c)) return;
/* send the request */
subreq = dcerpc_samr_EnumDomainUsers_r_send(s, c->event_ctx,
s->ctx->samr.pipe->binding_handle,
&s->user_list);
if (composite_nomem(subreq, c)) return;
tevent_req_set_callback(subreq, continue_users_enumerated, c);
}
/*
* Stage 2: receive enumerated users and their rids
*/
static void continue_users_enumerated(struct tevent_req *subreq)
{
struct composite_context *c;
struct userlist_state *s;
uint32_t i;
c = tevent_req_callback_data(subreq, struct composite_context);
s = talloc_get_type(c->private_data, struct userlist_state);
/* receive result of rpc request */
c->status = dcerpc_samr_EnumDomainUsers_r_recv(subreq, s);
TALLOC_FREE(subreq);
if (!composite_is_ok(c)) return;
/* get the actual status of the rpc call result
(instead of rpc layer status) */
c->status = s->user_list.out.result;
/* we're interested in status "ok" as well as two
enum-specific status codes */
if (NT_STATUS_IS_OK(c->status) ||
NT_STATUS_EQUAL(c->status, STATUS_MORE_ENTRIES) ||
NT_STATUS_EQUAL(c->status, NT_STATUS_NO_MORE_ENTRIES)) {
/* get enumerated accounts counter and resume handle (the latter allows
making subsequent call to continue enumeration) */
s->resume_index = *s->user_list.out.resume_handle;
s->count = *s->user_list.out.num_entries;
/* prepare returned user accounts array */
s->users = talloc_array(c, struct userlist, (*s->user_list.out.sam)->count);
if (composite_nomem(s->users, c)) return;
for (i = 0; i < (*s->user_list.out.sam)->count; i++) {
struct dom_sid *user_sid;
struct samr_SamEntry *entry = &(*s->user_list.out.sam)->entries[i];
struct dom_sid *domain_sid = (*s->query_domain.out.info)->domain.sid;
/* construct user sid from returned rid and queried domain sid */
user_sid = dom_sid_add_rid(c, domain_sid, entry->idx);
if (composite_nomem(user_sid, c)) return;
/* username */
s->users[i].username = talloc_strdup(s->users, entry->name.string);
if (composite_nomem(s->users[i].username, c)) return;
/* sid string */
s->users[i].sid = dom_sid_string(s->users, user_sid);
if (composite_nomem(s->users[i].sid, c)) return;
}
/* that's it */
composite_done(c);
} else {
/* something went wrong */
composite_error(c, c->status);
}
}
/**
* Receive result of UserList call
*
* @param c composite context returned by send request routine
* @param mem_ctx memory context of this call
* @param r pointer to structure containing arguments and result of this call
* @return nt status
*/
NTSTATUS libnet_UserList_recv(struct composite_context* c, TALLOC_CTX *mem_ctx,
struct libnet_UserList *r)
{
NTSTATUS status;
struct userlist_state *s;
if (c == NULL || mem_ctx == NULL || r == NULL) {
talloc_free(c);
return NT_STATUS_INVALID_PARAMETER;
}
status = composite_wait(c);
if (NT_STATUS_IS_OK(status) ||
NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES) ||
NT_STATUS_EQUAL(status, NT_STATUS_NO_MORE_ENTRIES)) {
s = talloc_get_type(c->private_data, struct userlist_state);
/* get results from composite context */
r->out.count = s->count;
r->out.resume_index = s->resume_index;
r->out.users = talloc_steal(mem_ctx, s->users);
if (NT_STATUS_IS_OK(status)) {
r->out.error_string = talloc_strdup(mem_ctx, "Success");
} else {
/* success, but we're not done yet */
r->out.error_string = talloc_asprintf(mem_ctx, "Success (status: %s)",
nt_errstr(status));
}
} else {
r->out.error_string = talloc_asprintf(mem_ctx, "Error: %s", nt_errstr(status));
}
talloc_free(c);
return status;
}
/**
* Synchronous version of UserList call
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r pointer to structure containing arguments and result of this call
* @return nt status
*/
NTSTATUS libnet_UserList(struct libnet_context *ctx,
TALLOC_CTX *mem_ctx,
struct libnet_UserList *r)
{
struct composite_context *c;
c = libnet_UserList_send(ctx, mem_ctx, r, NULL);
return libnet_UserList_recv(c, mem_ctx, r);
}