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/*
Unix SMB/Netbios implementation.
Winbind rpc backend functions
Copyright (C) Tim Potter 2000-2001
Copyright (C) Andrew Tridgell 2001
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.
*/
#include "winbindd.h"
/* Query display info for a domain. This returns enough information plus a
bit extra to give an overview of domain users for the User Manager
application. */
static NTSTATUS query_user_list(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32 *start_ndx, uint32 *num_entries,
WINBIND_USERINFO **info)
{
CLI_POLICY_HND *hnd;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
POLICY_HND dom_pol;
BOOL got_dom_pol = False;
uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED;
SAM_DISPINFO_CTR ctr;
SAM_DISPINFO_1 info1;
int i;
/* Get sam handle */
if (!(hnd = cm_get_sam_handle(domain->name)))
goto done;
/* Get domain handle */
result = cli_samr_open_domain(hnd->cli, mem_ctx, &hnd->pol,
des_access, &domain->sid, &dom_pol);
if (!NT_STATUS_IS_OK(result))
goto done;
got_dom_pol = True;
ctr.sam.info1 = &info1;
/* Query display info level 1 */
result = cli_samr_query_dispinfo(hnd->cli, mem_ctx,
&dom_pol, start_ndx, 1,
num_entries, 0xffff, &ctr);
/* now map the result into the WINBIND_USERINFO structure */
(*info) = (WINBIND_USERINFO *)talloc(mem_ctx, (*num_entries)*sizeof(WINBIND_USERINFO));
if (!(*info)) {
return NT_STATUS_NO_MEMORY;
}
for (i=0;i<*num_entries;i++) {
(*info)[i].acct_name = unistr2_tdup(mem_ctx, &info1.str[i].uni_acct_name);
(*info)[i].full_name = unistr2_tdup(mem_ctx, &info1.str[i].uni_full_name);
(*info)[i].user_rid = info1.sam[i].rid_user;
/* For the moment we set the primary group for every user to be the
Domain Users group. There are serious problems with determining
the actual primary group for large domains. This should really
be made into a 'winbind force group' smb.conf parameter or
something like that. */
(*info)[i].group_rid = DOMAIN_GROUP_RID_USERS;
}
done:
if (got_dom_pol)
cli_samr_close(hnd->cli, mem_ctx, &dom_pol);
return result;
}
/* list all domain groups */
static NTSTATUS enum_dom_groups(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32 *start_ndx, uint32 *num_entries,
struct acct_info **info)
{
uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED;
CLI_POLICY_HND *hnd;
POLICY_HND dom_pol;
NTSTATUS status;
*num_entries = 0;
if (!(hnd = cm_get_sam_handle(domain->name))) {
return NT_STATUS_UNSUCCESSFUL;
}
status = cli_samr_open_domain(hnd->cli, mem_ctx,
&hnd->pol, des_access, &domain->sid, &dom_pol);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = cli_samr_enum_dom_groups(hnd->cli, mem_ctx, &dom_pol,
start_ndx,
0x8000, /* buffer size? */
info, num_entries);
cli_samr_close(hnd->cli, mem_ctx, &dom_pol);
return status;
}
/* convert a single name to a sid in a domain */
static NTSTATUS name_to_sid(struct winbindd_domain *domain,
const char *name,
DOM_SID *sid,
enum SID_NAME_USE *type)
{
TALLOC_CTX *mem_ctx;
CLI_POLICY_HND *hnd;
NTSTATUS status;
DOM_SID *sids = NULL;
uint32 *types = NULL;
int num_sids;
if (!(mem_ctx = talloc_init()))
return NT_STATUS_NO_MEMORY;
if (!(hnd = cm_get_lsa_handle(domain->name)))
return NT_STATUS_UNSUCCESSFUL;
status = cli_lsa_lookup_names(hnd->cli, mem_ctx, &hnd->pol, 1, &name,
&sids, &types, &num_sids);
/* Return rid and type if lookup successful */
if (NT_STATUS_IS_OK(status)) {
sid_copy(sid, &sids[0]);
*type = types[0];
}
talloc_destroy(mem_ctx);
return status;
}
/*
convert a domain SID to a user or group name
*/
static NTSTATUS sid_to_name(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
DOM_SID *sid,
char **name,
enum SID_NAME_USE *type)
{
CLI_POLICY_HND *hnd;
char **names;
uint32 *types;
int num_names;
NTSTATUS status;
if (!(hnd = cm_get_lsa_handle(domain->name)))
return NT_STATUS_UNSUCCESSFUL;
status = cli_lsa_lookup_sids(hnd->cli, mem_ctx, &hnd->pol,
1, sid, &names, &types,
&num_names);
if (NT_STATUS_IS_OK(status)) {
*type = types[0];
*name = names[0];
DEBUG(5,("Mapped sid to %s\n", *name));
}
return status;
}
/* Lookup user information from a rid or username. */
static NTSTATUS query_user(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32 user_rid,
WINBIND_USERINFO *user_info)
{
CLI_POLICY_HND *hnd;
NTSTATUS result;
POLICY_HND dom_pol, user_pol;
BOOL got_dom_pol = False, got_user_pol = False;
SAM_USERINFO_CTR *ctr;
/* Get sam handle */
if (!(hnd = cm_get_sam_handle(domain->name)))
goto done;
/* Get domain handle */
result = cli_samr_open_domain(hnd->cli, mem_ctx, &hnd->pol,
SEC_RIGHTS_MAXIMUM_ALLOWED,
&domain->sid, &dom_pol);
if (!NT_STATUS_IS_OK(result))
goto done;
got_dom_pol = True;
/* Get user handle */
result = cli_samr_open_user(hnd->cli, mem_ctx, &dom_pol,
SEC_RIGHTS_MAXIMUM_ALLOWED, user_rid, &user_pol);
if (!NT_STATUS_IS_OK(result))
goto done;
/* Get user info */
result = cli_samr_query_userinfo(hnd->cli, mem_ctx, &user_pol,
0x15, &ctr);
cli_samr_close(hnd->cli, mem_ctx, &user_pol);
user_info->group_rid = ctr->info.id21->group_rid;
user_info->acct_name = unistr2_tdup(mem_ctx,
&ctr->info.id21->uni_user_name);
user_info->full_name = unistr2_tdup(mem_ctx,
&ctr->info.id21->uni_full_name);
done:
/* Clean up policy handles */
if (got_user_pol)
cli_samr_close(hnd->cli, mem_ctx, &user_pol);
if (got_dom_pol)
cli_samr_close(hnd->cli, mem_ctx, &dom_pol);
return result;
}
/* Lookup groups a user is a member of. I wish Unix had a call like this! */
static NTSTATUS lookup_usergroups(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32 user_rid,
uint32 *num_groups, uint32 **user_gids)
{
CLI_POLICY_HND *hnd;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
POLICY_HND dom_pol, user_pol;
uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED;
BOOL got_dom_pol = False, got_user_pol = False;
DOM_GID *user_groups;
int i;
/* Get sam handle */
if (!(hnd = cm_get_sam_handle(domain->name)))
goto done;
/* Get domain handle */
result = cli_samr_open_domain(hnd->cli, mem_ctx, &hnd->pol,
des_access, &domain->sid, &dom_pol);
if (!NT_STATUS_IS_OK(result))
goto done;
got_dom_pol = True;
/* Get user handle */
result = cli_samr_open_user(hnd->cli, mem_ctx, &dom_pol,
des_access, user_rid, &user_pol);
if (!NT_STATUS_IS_OK(result))
goto done;
got_user_pol = True;
/* Query user rids */
result = cli_samr_query_usergroups(hnd->cli, mem_ctx, &user_pol,
num_groups, &user_groups);
if (!NT_STATUS_IS_OK(result) || (*num_groups) == 0)
goto done;
(*user_gids) = talloc(mem_ctx, sizeof(uint32) * (*num_groups));
for (i=0;i<(*num_groups);i++) {
(*user_gids)[i] = user_groups[i].g_rid;
}
done:
/* Clean up policy handles */
if (got_user_pol)
cli_samr_close(hnd->cli, mem_ctx, &user_pol);
if (got_dom_pol)
cli_samr_close(hnd->cli, mem_ctx, &dom_pol);
return result;
}
/* Lookup group membership given a rid. */
static NTSTATUS lookup_groupmem(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32 group_rid, uint32 *num_names,
uint32 **rid_mem, char ***names,
uint32 **name_types)
{
CLI_POLICY_HND *hnd;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
uint32 i, total_names = 0;
POLICY_HND dom_pol, group_pol;
uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED;
BOOL got_dom_pol = False, got_group_pol = False;
/* Get sam handle */
if (!(hnd = cm_get_sam_handle(domain->name)))
goto done;
/* Get domain handle */
result = cli_samr_open_domain(hnd->cli, mem_ctx, &hnd->pol,
des_access, &domain->sid, &dom_pol);
if (!NT_STATUS_IS_OK(result))
goto done;
got_dom_pol = True;
/* Get group handle */
result = cli_samr_open_group(hnd->cli, mem_ctx, &dom_pol,
des_access, group_rid, &group_pol);
if (!NT_STATUS_IS_OK(result))
goto done;
got_group_pol = True;
/* Step #1: Get a list of user rids that are the members of the
group. */
result = cli_samr_query_groupmem(hnd->cli, mem_ctx,
&group_pol, num_names, rid_mem,
name_types);
if (!NT_STATUS_IS_OK(result))
goto done;
/* Step #2: Convert list of rids into list of usernames. Do this
in bunches of ~1000 to avoid crashing NT4. It looks like there
is a buffer overflow or something like that lurking around
somewhere. */
#define MAX_LOOKUP_RIDS 900
*names = talloc(mem_ctx, *num_names * sizeof(char *));
*name_types = talloc(mem_ctx, *num_names * sizeof(uint32));
for (i = 0; i < *num_names; i += MAX_LOOKUP_RIDS) {
int num_lookup_rids = MIN(*num_names - i, MAX_LOOKUP_RIDS);
uint32 tmp_num_names = 0;
char **tmp_names = NULL;
uint32 *tmp_types = NULL;
/* Lookup a chunk of rids */
result = cli_samr_lookup_rids(hnd->cli, mem_ctx,
&dom_pol, 1000, /* flags */
num_lookup_rids,
&(*rid_mem)[i],
&tmp_num_names,
&tmp_names, &tmp_types);
if (!NT_STATUS_IS_OK(result))
goto done;
/* Copy result into array. The talloc system will take
care of freeing the temporary arrays later on. */
memcpy(&(*names)[i], tmp_names, sizeof(char *) *
tmp_num_names);
memcpy(&(*name_types)[i], tmp_types, sizeof(uint32) *
tmp_num_names);
total_names += tmp_num_names;
}
*num_names = total_names;
done:
if (got_group_pol)
cli_samr_close(hnd->cli, mem_ctx, &group_pol);
if (got_dom_pol)
cli_samr_close(hnd->cli, mem_ctx, &dom_pol);
return result;
}
/* the rpc backend methods are exposed via this structure */
struct winbindd_methods msrpc_methods = {
query_user_list,
enum_dom_groups,
name_to_sid,
sid_to_name,
query_user,
lookup_usergroups,
lookup_groupmem
};
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