sysdb_ops.c revision 3bea01f01d76e1e95a8239c0d3f67073992136a1
/*
SSSD
System Database
Copyright (C) Simo Sorce <ssorce@redhat.com> 2008
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 "util/util.h"
#include "db/sysdb_private.h"
#include "db/sysdb_services.h"
#include "db/sysdb_autofs.h"
#include "util/crypto/sss_crypto.h"
#include <time.h>
int add_string(struct ldb_message *msg, int flags,
const char *attr, const char *value)
{
int ret;
ret = ldb_msg_add_empty(msg, attr, flags, NULL);
if (ret == LDB_SUCCESS) {
ret = ldb_msg_add_string(msg, attr, value);
if (ret == LDB_SUCCESS) return EOK;
}
return ENOMEM;
}
int add_ulong(struct ldb_message *msg, int flags,
const char *attr, unsigned long value)
{
int ret;
ret = ldb_msg_add_empty(msg, attr, flags, NULL);
if (ret == LDB_SUCCESS) {
ret = ldb_msg_add_fmt(msg, attr, "%lu", value);
if (ret == LDB_SUCCESS) return EOK;
}
return ENOMEM;
}
static uint32_t get_attr_as_uint32(struct ldb_message *msg, const char *attr)
{
const struct ldb_val *v = ldb_msg_find_ldb_val(msg, attr);
long long int l;
if (!v || !v->data) {
return 0;
}
errno = 0;
l = strtoll((const char *)v->data, NULL, 10);
if (errno) {
return (uint32_t)-1;
}
if (l < 0 || l > ((uint32_t)(-1))) {
return (uint32_t)-1;
}
return l;
}
#define ERROR_OUT(v, r, l) do { v = r; goto l; } while(0)
/* =Remove-Entry-From-Sysdb=============================================== */
int sysdb_delete_entry(struct sysdb_ctx *sysdb,
struct ldb_dn *dn,
bool ignore_not_found)
{
int ret;
ret = ldb_delete(sysdb->ldb, dn);
switch (ret) {
case LDB_SUCCESS:
return EOK;
case LDB_ERR_NO_SUCH_OBJECT:
if (ignore_not_found) {
return EOK;
}
/* fall through */
default:
DEBUG(1, ("LDB Error: %s(%d)\nError Message: [%s]\n",
ldb_strerror(ret), ret, ldb_errstring(sysdb->ldb)));
return sysdb_error_to_errno(ret);
}
}
/* =Remove-Subentries-From-Sysdb=========================================== */
int sysdb_delete_recursive(struct sysdb_ctx *sysdb,
struct ldb_dn *dn,
bool ignore_not_found)
{
const char *no_attrs[] = { NULL };
struct ldb_message **msgs;
size_t msgs_count;
int ret;
int i;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
ret = ldb_transaction_start(sysdb->ldb);
if (ret) {
ret = sysdb_error_to_errno(ret);
goto done;
}
ret = sysdb_search_entry(tmp_ctx, sysdb, dn,
LDB_SCOPE_SUBTREE, "(distinguishedName=*)",
no_attrs, &msgs_count, &msgs);
if (ret) {
if (ignore_not_found && ret == ENOENT) {
ret = EOK;
}
if (ret) {
DEBUG(6, ("Search error: %d (%s)\n", ret, strerror(ret)));
}
goto done;
}
DEBUG(9, ("Found [%d] items to delete.\n", msgs_count));
qsort(msgs, msgs_count,
sizeof(struct ldb_message *), compare_ldb_dn_comp_num);
for (i = 0; i < msgs_count; i++) {
DEBUG(9 ,("Trying to delete [%s].\n",
ldb_dn_get_linearized(msgs[i]->dn)));
ret = sysdb_delete_entry(sysdb, msgs[i]->dn, false);
if (ret) {
goto done;
}
}
done:
if (ret == EOK) {
ret = ldb_transaction_commit(sysdb->ldb);
ret = sysdb_error_to_errno(ret);
} else {
ldb_transaction_cancel(sysdb->ldb);
}
talloc_free(tmp_ctx);
return ret;
}
/* =Search-Entry========================================================== */
int sysdb_search_entry(TALLOC_CTX *mem_ctx,
struct sysdb_ctx *sysdb,
struct ldb_dn *base_dn,
int scope,
const char *filter,
const char **attrs,
size_t *msgs_count,
struct ldb_message ***msgs)
{
struct ldb_result *res;
int ret;
ret = ldb_search(sysdb->ldb, mem_ctx, &res,
base_dn, scope, attrs,
filter?"%s":NULL, filter);
if (ret) {
return sysdb_error_to_errno(ret);
}
*msgs_count = res->count;
*msgs = talloc_steal(mem_ctx, res->msgs);
if (res->count == 0) {
return ENOENT;
}
return EOK;
}
/* =Search-User-by-[UID/NAME]============================================= */
int sysdb_search_user_by_name(TALLOC_CTX *mem_ctx,
struct sysdb_ctx *sysdb,
const char *name,
const char **attrs,
struct ldb_message **msg)
{
TALLOC_CTX *tmp_ctx;
const char *def_attrs[] = { SYSDB_NAME, SYSDB_UIDNUM, NULL };
struct ldb_message **msgs = NULL;
struct ldb_dn *basedn;
size_t msgs_count = 0;
int ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
basedn = sysdb_user_dn(sysdb, tmp_ctx, sysdb->domain->name, name);
if (!basedn) {
ret = ENOMEM;
goto done;
}
ret = sysdb_search_entry(tmp_ctx, sysdb, basedn, LDB_SCOPE_BASE, NULL,
attrs?attrs:def_attrs, &msgs_count, &msgs);
if (ret) {
goto done;
}
*msg = talloc_steal(mem_ctx, msgs[0]);
done:
if (ret == ENOENT) {
DEBUG(SSSDBG_TRACE_FUNC, ("No such entry\n"));
}
else if (ret) {
DEBUG(SSSDBG_TRACE_FUNC, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
int sysdb_search_user_by_uid(TALLOC_CTX *mem_ctx,
struct sysdb_ctx *sysdb,
uid_t uid,
const char **attrs,
struct ldb_message **msg)
{
TALLOC_CTX *tmp_ctx;
const char *def_attrs[] = { SYSDB_NAME, SYSDB_UIDNUM, NULL };
struct ldb_message **msgs = NULL;
struct ldb_dn *basedn;
size_t msgs_count = 0;
char *filter;
int ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
basedn = ldb_dn_new_fmt(tmp_ctx, sysdb->ldb,
SYSDB_TMPL_USER_BASE, sysdb->domain->name);
if (!basedn) {
ret = ENOMEM;
goto done;
}
filter = talloc_asprintf(tmp_ctx, SYSDB_PWUID_FILTER, (unsigned long)uid);
if (!filter) {
ret = ENOMEM;
goto done;
}
/* Use SUBTREE scope here, not ONELEVEL
* There is a bug in LDB that makes ONELEVEL searches extremely
* slow (it ignores indexing)
*/
ret = sysdb_search_entry(tmp_ctx, sysdb, basedn, LDB_SCOPE_SUBTREE, filter,
attrs?attrs:def_attrs, &msgs_count, &msgs);
if (ret) {
goto done;
}
*msg = talloc_steal(mem_ctx, msgs[0]);
done:
if (ret == ENOENT) {
DEBUG(SSSDBG_TRACE_FUNC, ("No such entry\n"));
}
else if (ret) {
DEBUG(SSSDBG_TRACE_FUNC, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Search-Group-by-[GID/NAME]============================================ */
int sysdb_search_group_by_name(TALLOC_CTX *mem_ctx,
struct sysdb_ctx *sysdb,
const char *name,
const char **attrs,
struct ldb_message **msg)
{
TALLOC_CTX *tmp_ctx;
static const char *def_attrs[] = { SYSDB_NAME, SYSDB_GIDNUM, NULL };
struct ldb_message **msgs = NULL;
struct ldb_dn *basedn;
size_t msgs_count = 0;
int ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
basedn = sysdb_group_dn(sysdb, tmp_ctx, sysdb->domain->name, name);
if (!basedn) {
ret = ENOMEM;
goto done;
}
ret = sysdb_search_entry(tmp_ctx, sysdb, basedn, LDB_SCOPE_BASE, NULL,
attrs?attrs:def_attrs, &msgs_count, &msgs);
if (ret) {
goto done;
}
*msg = talloc_steal(mem_ctx, msgs[0]);
done:
if (ret == ENOENT) {
DEBUG(SSSDBG_TRACE_FUNC, ("No such entry\n"));
}
else if (ret) {
DEBUG(SSSDBG_TRACE_FUNC, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
int sysdb_search_group_by_gid(TALLOC_CTX *mem_ctx,
struct sysdb_ctx *sysdb,
gid_t gid,
const char **attrs,
struct ldb_message **msg)
{
TALLOC_CTX *tmp_ctx;
const char *def_attrs[] = { SYSDB_NAME, SYSDB_UIDNUM, NULL };
struct ldb_message **msgs = NULL;
struct ldb_dn *basedn;
size_t msgs_count = 0;
char *filter;
int ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
basedn = ldb_dn_new_fmt(tmp_ctx, sysdb->ldb,
SYSDB_TMPL_GROUP_BASE, sysdb->domain->name);
if (!basedn) {
ret = ENOMEM;
goto done;
}
filter = talloc_asprintf(tmp_ctx, SYSDB_GRGID_FILTER, (unsigned long)gid);
if (!filter) {
ret = ENOMEM;
goto done;
}
/* Use SUBTREE scope here, not ONELEVEL
* There is a bug in LDB that makes ONELEVEL searches extremely
* slow (it ignores indexing)
*/
ret = sysdb_search_entry(tmp_ctx, sysdb, basedn, LDB_SCOPE_SUBTREE, filter,
attrs?attrs:def_attrs, &msgs_count, &msgs);
if (ret) {
goto done;
}
*msg = talloc_steal(mem_ctx, msgs[0]);
done:
if (ret == ENOENT) {
DEBUG(SSSDBG_TRACE_FUNC, ("No such entry\n"));
}
else if (ret) {
DEBUG(SSSDBG_TRACE_FUNC, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Search-Group-by-Name============================================ */
int sysdb_search_netgroup_by_name(TALLOC_CTX *mem_ctx,
struct sysdb_ctx *sysdb,
const char *name,
const char **attrs,
struct ldb_message **msg)
{
TALLOC_CTX *tmp_ctx;
static const char *def_attrs[] = { SYSDB_NAME, NULL };
struct ldb_message **msgs = NULL;
struct ldb_dn *basedn;
size_t msgs_count = 0;
int ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
basedn = sysdb_netgroup_dn(sysdb, tmp_ctx, sysdb->domain->name, name);
if (!basedn) {
ret = ENOMEM;
goto done;
}
ret = sysdb_search_entry(tmp_ctx, sysdb, basedn, LDB_SCOPE_BASE, NULL,
attrs?attrs:def_attrs, &msgs_count, &msgs);
if (ret) {
goto done;
}
*msg = talloc_steal(mem_ctx, msgs[0]);
done:
if (ret == ENOENT) {
DEBUG(SSSDBG_TRACE_FUNC, ("No such entry\n"));
}
else if (ret) {
DEBUG(SSSDBG_TRACE_FUNC, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Replace-Attributes-On-Entry=========================================== */
int sysdb_set_entry_attr(struct sysdb_ctx *sysdb,
struct ldb_dn *entry_dn,
struct sysdb_attrs *attrs,
int mod_op)
{
struct ldb_message *msg;
int i, ret;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
if (!entry_dn || attrs->num == 0) {
ret = EINVAL;
goto done;
}
msg = ldb_msg_new(tmp_ctx);
if (!msg) {
ret = ENOMEM;
goto done;
}
msg->dn = entry_dn;
msg->elements = talloc_array(msg, struct ldb_message_element, attrs->num);
if (!msg->elements) {
ret = ENOMEM;
goto done;
}
for (i = 0; i < attrs->num; i++) {
msg->elements[i] = attrs->a[i];
msg->elements[i].flags = mod_op;
}
msg->num_elements = attrs->num;
ret = ldb_modify(sysdb->ldb, msg);
ret = sysdb_error_to_errno(ret);
done:
if (ret == ENOENT) {
DEBUG(SSSDBG_TRACE_FUNC, ("No such entry\n"));
}
else if (ret) {
DEBUG(SSSDBG_TRACE_FUNC, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Replace-Attributes-On-User============================================ */
int sysdb_set_user_attr(struct sysdb_ctx *sysdb,
const char *name,
struct sysdb_attrs *attrs,
int mod_op)
{
struct ldb_dn *dn;
TALLOC_CTX *tmp_ctx;
errno_t ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
dn = sysdb_user_dn(sysdb, tmp_ctx, sysdb->domain->name, name);
if (!dn) {
ret = ENOMEM;
goto done;
}
ret = sysdb_set_entry_attr(sysdb, dn, attrs, mod_op);
if (ret != EOK) {
goto done;
}
ret = EOK;
done:
talloc_zfree(tmp_ctx);
return ret;
}
/* =Replace-Attributes-On-Group=========================================== */
int sysdb_set_group_attr(struct sysdb_ctx *sysdb,
const char *name,
struct sysdb_attrs *attrs,
int mod_op)
{
struct ldb_dn *dn;
TALLOC_CTX *tmp_ctx;
errno_t ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
ret = ENOMEM;
goto done;
}
dn = sysdb_group_dn(sysdb, tmp_ctx, sysdb->domain->name, name);
if (!dn) {
ret = ENOMEM;
goto done;
}
ret = sysdb_set_entry_attr(sysdb, dn, attrs, mod_op);
if (ret) {
goto done;
}
ret = EOK;
done:
talloc_free(tmp_ctx);
return ret;
}
/* =Replace-Attributes-On-Netgroup=========================================== */
int sysdb_set_netgroup_attr(struct sysdb_ctx *sysdb,
const char *name,
struct sysdb_attrs *attrs,
int mod_op)
{
errno_t ret;
struct ldb_dn *dn;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
dn = sysdb_netgroup_dn(sysdb, tmp_ctx, sysdb->domain->name, name);
if (!dn) {
ret = ENOMEM;
goto done;
}
ret = sysdb_set_entry_attr(sysdb, dn, attrs, mod_op);
done:
talloc_free(tmp_ctx);
return ret;
}
/* =Get-New-ID============================================================ */
int sysdb_get_new_id(struct sysdb_ctx *sysdb,
uint32_t *_id)
{
TALLOC_CTX *tmp_ctx;
const char *attrs_1[] = { SYSDB_NEXTID, NULL };
const char *attrs_2[] = { SYSDB_UIDNUM, SYSDB_GIDNUM, NULL };
struct ldb_dn *base_dn;
char *filter;
uint32_t new_id = 0;
struct ldb_message **msgs;
size_t count;
struct ldb_message *msg;
uint32_t id;
int ret;
int i;
struct sss_domain_info *domain = sysdb->domain;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
base_dn = sysdb_domain_dn(sysdb, tmp_ctx, domain->name);
if (!base_dn) {
talloc_zfree(tmp_ctx);
return ENOMEM;
}
ret = ldb_transaction_start(sysdb->ldb);
if (ret) {
talloc_zfree(tmp_ctx);
ret = sysdb_error_to_errno(ret);
return ret;
}
ret = sysdb_search_entry(tmp_ctx, sysdb, base_dn, LDB_SCOPE_BASE,
SYSDB_NEXTID_FILTER, attrs_1, &count, &msgs);
switch (ret) {
case EOK:
new_id = get_attr_as_uint32(msgs[0], SYSDB_NEXTID);
if (new_id == (uint32_t)(-1)) {
DEBUG(1, ("Invalid Next ID in domain %s\n", domain->name));
ret = ERANGE;
goto done;
}
if (new_id < domain->id_min) {
new_id = domain->id_min;
}
if ((domain->id_max != 0) && (new_id > domain->id_max)) {
DEBUG(0, ("Failed to allocate new id, out of range (%u/%u)\n",
new_id, domain->id_max));
ret = ERANGE;
goto done;
}
break;
case ENOENT:
/* looks like the domain is not initialized yet, use min_id */
new_id = domain->id_min;
break;
default:
goto done;
}
talloc_zfree(msgs);
count = 0;
/* verify the id is actually really free.
* search all entries with id >= new_id and < max_id */
if (domain->id_max) {
filter = talloc_asprintf(tmp_ctx,
"(|(&(%s>=%u)(%s<=%u))(&(%s>=%u)(%s<=%u)))",
SYSDB_UIDNUM, new_id,
SYSDB_UIDNUM, domain->id_max,
SYSDB_GIDNUM, new_id,
SYSDB_GIDNUM, domain->id_max);
}
else {
filter = talloc_asprintf(tmp_ctx,
"(|(%s>=%u)(%s>=%u))",
SYSDB_UIDNUM, new_id,
SYSDB_GIDNUM, new_id);
}
if (!filter) {
DEBUG(6, ("Error: Out of memory\n"));
ret = ENOMEM;
goto done;
}
ret = sysdb_search_entry(tmp_ctx, sysdb, base_dn, LDB_SCOPE_SUBTREE,
filter, attrs_2, &count, &msgs);
switch (ret) {
/* if anything was found, find the maximum and increment past it */
case EOK:
for (i = 0; i < count; i++) {
id = get_attr_as_uint32(msgs[i], SYSDB_UIDNUM);
if (id != (uint32_t)(-1)) {
if (id > new_id) new_id = id;
}
id = get_attr_as_uint32(msgs[i], SYSDB_GIDNUM);
if (id != (uint32_t)(-1)) {
if (id > new_id) new_id = id;
}
}
new_id++;
/* check again we are not falling out of range */
if ((domain->id_max != 0) && (new_id > domain->id_max)) {
DEBUG(0, ("Failed to allocate new id, out of range (%u/%u)\n",
new_id, domain->id_max));
ret = ERANGE;
goto done;
}
break;
case ENOENT:
break;
default:
goto done;
}
talloc_zfree(msgs);
count = 0;
/* finally store the new next id */
msg = ldb_msg_new(tmp_ctx);
if (!msg) {
DEBUG(6, ("Error: Out of memory\n"));
ret = ENOMEM;
goto done;
}
msg->dn = base_dn;
ret = add_ulong(msg, LDB_FLAG_MOD_REPLACE,
SYSDB_NEXTID, new_id + 1);
if (ret) {
goto done;
}
ret = ldb_modify(sysdb->ldb, msg);
ret = sysdb_error_to_errno(ret);
*_id = new_id;
done:
if (ret == EOK) {
ret = ldb_transaction_commit(sysdb->ldb);
ret = sysdb_error_to_errno(ret);
} else {
ldb_transaction_cancel(sysdb->ldb);
}
if (ret) {
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Add-Basic-User-NO-CHECKS============================================== */
int sysdb_add_basic_user(struct sysdb_ctx *sysdb,
const char *name,
uid_t uid, gid_t gid,
const char *gecos,
const char *homedir,
const char *shell)
{
struct ldb_message *msg;
int ret;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
msg = ldb_msg_new(tmp_ctx);
if (!msg) {
ret = ENOMEM;
goto done;
}
/* user dn */
msg->dn = sysdb_user_dn(sysdb, msg, sysdb->domain->name, name);
if (!msg->dn) {
ERROR_OUT(ret, ENOMEM, done);
}
ret = add_string(msg, LDB_FLAG_MOD_ADD, SYSDB_OBJECTCLASS, SYSDB_USER_CLASS);
if (ret) goto done;
ret = add_string(msg, LDB_FLAG_MOD_ADD, SYSDB_NAME, name);
if (ret) goto done;
ret = add_ulong(msg, LDB_FLAG_MOD_ADD, SYSDB_UIDNUM, (unsigned long)uid);
if (ret) goto done;
ret = add_ulong(msg, LDB_FLAG_MOD_ADD, SYSDB_GIDNUM, (unsigned long)gid);
if (ret) goto done;
/* We set gecos to be the same as fullname on user creation,
* But we will not enforce coherency after that, it's up to
* admins to decide if they want to keep it in sync if they change
* one of the 2 */
if (gecos && *gecos) {
ret = add_string(msg, LDB_FLAG_MOD_ADD, SYSDB_FULLNAME, gecos);
if (ret) goto done;
ret = add_string(msg, LDB_FLAG_MOD_ADD, SYSDB_GECOS, gecos);
if (ret) goto done;
}
if (homedir && *homedir) {
ret = add_string(msg, LDB_FLAG_MOD_ADD, SYSDB_HOMEDIR, homedir);
if (ret) goto done;
}
if (shell && *shell) {
ret = add_string(msg, LDB_FLAG_MOD_ADD, SYSDB_SHELL, shell);
if (ret) goto done;
}
/* creation time */
ret = add_ulong(msg, LDB_FLAG_MOD_ADD, SYSDB_CREATE_TIME,
(unsigned long)time(NULL));
if (ret) goto done;
ret = ldb_add(sysdb->ldb, msg);
ret = sysdb_error_to_errno(ret);
done:
if (ret) {
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Add-User-Function===================================================== */
int sysdb_add_user(struct sysdb_ctx *sysdb,
const char *name,
uid_t uid, gid_t gid,
const char *gecos,
const char *homedir,
const char *shell,
struct sysdb_attrs *attrs,
int cache_timeout,
time_t now)
{
TALLOC_CTX *tmp_ctx;
struct ldb_message *msg;
struct sysdb_attrs *id_attrs;
uint32_t id;
int ret;
struct sss_domain_info *domain = sysdb->domain;
if (sysdb->mpg) {
if (gid != 0) {
DEBUG(0, ("Cannot add user with arbitrary GID in MPG domain!\n"));
return EINVAL;
}
gid = uid;
}
if (domain->id_max != 0 && uid != 0 &&
(uid < domain->id_min || uid > domain->id_max)) {
DEBUG(2, ("Supplied uid [%d] is not in the allowed range [%d-%d].\n",
uid, domain->id_min, domain->id_max));
return ERANGE;
}
if (domain->id_max != 0 && gid != 0 &&
(gid < domain->id_min || gid > domain->id_max)) {
DEBUG(2, ("Supplied gid [%d] is not in the allowed range [%d-%d].\n",
gid, domain->id_min, domain->id_max));
return ERANGE;
}
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
ret = ldb_transaction_start(sysdb->ldb);
if (ret) {
ret = sysdb_error_to_errno(ret);
talloc_free(tmp_ctx);
return ret;
}
if (sysdb->mpg) {
/* In MPG domains you can't have groups with the same name as users,
* search if a group with the same name exists.
* Don't worry about users, if we try to add a user with the same
* name the operation will fail */
ret = sysdb_search_group_by_name(tmp_ctx, sysdb,
name, NULL, &msg);
if (ret != ENOENT) {
if (ret == EOK) ret = EEXIST;
goto done;
}
}
/* check no other user with the same uid exist */
if (uid != 0) {
ret = sysdb_search_user_by_uid(tmp_ctx, sysdb,
uid, NULL, &msg);
if (ret != ENOENT) {
if (ret == EOK) ret = EEXIST;
goto done;
}
}
/* try to add the user */
ret = sysdb_add_basic_user(sysdb, name, uid, gid, gecos, homedir, shell);
if (ret) goto done;
if (uid == 0) {
ret = sysdb_get_new_id(sysdb, &id);
if (ret) goto done;
id_attrs = sysdb_new_attrs(tmp_ctx);
if (!id_attrs) {
ret = ENOMEM;
goto done;
}
ret = sysdb_attrs_add_uint32(id_attrs, SYSDB_UIDNUM, id);
if (ret) goto done;
if (sysdb->mpg) {
ret = sysdb_attrs_add_uint32(id_attrs, SYSDB_GIDNUM, id);
if (ret) goto done;
}
ret = sysdb_set_user_attr(sysdb, name, id_attrs, SYSDB_MOD_REP);
goto done;
}
if (!attrs) {
attrs = sysdb_new_attrs(tmp_ctx);
if (!attrs) {
ret = ENOMEM;
goto done;
}
}
if (!now) {
now = time(NULL);
}
ret = sysdb_attrs_add_time_t(attrs, SYSDB_LAST_UPDATE, now);
if (ret) goto done;
ret = sysdb_attrs_add_time_t(attrs, SYSDB_CACHE_EXPIRE,
((cache_timeout) ?
(now + cache_timeout) : 0));
if (ret) goto done;
ret = sysdb_set_user_attr(sysdb, name, attrs, SYSDB_MOD_REP);
done:
if (ret == EOK) {
ret = ldb_transaction_commit(sysdb->ldb);
ret = sysdb_error_to_errno(ret);
} else {
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
ldb_transaction_cancel(sysdb->ldb);
}
talloc_zfree(tmp_ctx);
return ret;
}
int sysdb_add_fake_user(struct sysdb_ctx *sysdb,
const char *name,
const char *original_dn,
time_t now)
{
TALLOC_CTX *tmp_ctx;
struct ldb_message *msg;
int ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
msg = ldb_msg_new(tmp_ctx);
if (!msg) {
ERROR_OUT(ret, ENOMEM, done);
}
/* user dn */
msg->dn = sysdb_user_dn(sysdb, msg, sysdb->domain->name, name);
if (!msg->dn) {
ERROR_OUT(ret, ENOMEM, done);
}
ret = add_string(msg, LDB_FLAG_MOD_ADD, SYSDB_OBJECTCLASS, SYSDB_USER_CLASS);
if (ret) goto done;
ret = add_string(msg, LDB_FLAG_MOD_ADD, SYSDB_NAME, name);
if (ret) goto done;
if (!now) {
now = time(NULL);
}
ret = add_ulong(msg, LDB_FLAG_MOD_ADD, SYSDB_CREATE_TIME,
(unsigned long) now);
if (ret) goto done;
/* set last login so that the fake entry does not get cleaned up
* immediately */
ret = add_ulong(msg, LDB_FLAG_MOD_ADD, SYSDB_LAST_LOGIN,
(unsigned long) now);
if (ret) return ret;
ret = add_ulong(msg, LDB_FLAG_MOD_ADD, SYSDB_LAST_UPDATE,
(unsigned long) now);
if (ret) goto done;
ret = add_ulong(msg, LDB_FLAG_MOD_ADD, SYSDB_CACHE_EXPIRE,
(unsigned long) now-1);
if (ret) goto done;
if (original_dn) {
ret = add_string(msg, LDB_FLAG_MOD_ADD,
SYSDB_ORIG_DN, original_dn);
if (ret) goto done;
}
ret = ldb_add(sysdb->ldb, msg);
ret = sysdb_error_to_errno(ret);
done:
if (ret != EOK) {
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Add-Basic-Group-NO-CHECKS============================================= */
int sysdb_add_basic_group(struct sysdb_ctx *sysdb,
const char *name, gid_t gid)
{
struct ldb_message *msg;
int ret;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
msg = ldb_msg_new(tmp_ctx);
if (!msg) {
ret = ENOMEM;
goto done;
}
/* group dn */
msg->dn = sysdb_group_dn(sysdb, msg, sysdb->domain->name, name);
if (!msg->dn) {
ERROR_OUT(ret, ENOMEM, done);
}
ret = add_string(msg, LDB_FLAG_MOD_ADD, SYSDB_OBJECTCLASS, SYSDB_GROUP_CLASS);
if (ret) goto done;
ret = add_string(msg, LDB_FLAG_MOD_ADD, SYSDB_NAME, name);
if (ret) goto done;
ret = add_ulong(msg, LDB_FLAG_MOD_ADD, SYSDB_GIDNUM, (unsigned long)gid);
if (ret) goto done;
/* creation time */
ret = add_ulong(msg, LDB_FLAG_MOD_ADD, SYSDB_CREATE_TIME,
(unsigned long)time(NULL));
if (ret) goto done;
ret = ldb_add(sysdb->ldb, msg);
ret = sysdb_error_to_errno(ret);
done:
if (ret) {
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Add-Group-Function==================================================== */
int sysdb_add_group(struct sysdb_ctx *sysdb,
const char *name, gid_t gid,
struct sysdb_attrs *attrs,
int cache_timeout,
time_t now)
{
TALLOC_CTX *tmp_ctx;
struct ldb_message *msg;
uint32_t id;
int ret;
bool posix;
struct sss_domain_info *domain = sysdb->domain;
if (domain->id_max != 0 && gid != 0 &&
(gid < domain->id_min || gid > domain->id_max)) {
DEBUG(2, ("Supplied gid [%d] is not in the allowed range [%d-%d].\n",
gid, domain->id_min, domain->id_max));
return ERANGE;
}
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
ret = ldb_transaction_start(sysdb->ldb);
if (ret) {
ret = sysdb_error_to_errno(ret);
talloc_free(tmp_ctx);
return ret;
}
if (sysdb->mpg) {
/* In MPG domains you can't have groups with the same name as users,
* search if a group with the same name exists.
* Don't worry about users, if we try to add a user with the same
* name the operation will fail */
ret = sysdb_search_user_by_name(tmp_ctx, sysdb,
name, NULL, &msg);
if (ret != ENOENT) {
if (ret == EOK) ret = EEXIST;
goto done;
}
}
/* check no other groups with the same gid exist */
if (gid != 0) {
ret = sysdb_search_group_by_gid(tmp_ctx, sysdb,
gid, NULL, &msg);
if (ret != ENOENT) {
if (ret == EOK) {
ret = sysdb_delete_group(sysdb, NULL, gid);
}
if (ret != EOK) {
goto done;
}
}
}
/* try to add the group */
ret = sysdb_add_basic_group(sysdb, name, gid);
if (ret) goto done;
if (!attrs) {
attrs = sysdb_new_attrs(tmp_ctx);
if (!attrs) {
ret = ENOMEM;
goto done;
}
}
ret = sysdb_attrs_get_bool(attrs, SYSDB_POSIX, &posix);
if (ret == ENOENT) {
posix = true;
ret = sysdb_attrs_add_bool(attrs, SYSDB_POSIX, true);
if (ret) goto done;
} else if (ret != EOK) {
goto done;
}
if (posix && gid == 0) {
ret = sysdb_get_new_id(sysdb, &id);
if (ret) goto done;
ret = sysdb_attrs_add_uint32(attrs, SYSDB_GIDNUM, id);
if (ret) goto done;
}
if (!now) {
now = time(NULL);
}
ret = sysdb_attrs_add_time_t(attrs, SYSDB_LAST_UPDATE, now);
if (ret) goto done;
ret = sysdb_attrs_add_time_t(attrs, SYSDB_CACHE_EXPIRE,
((cache_timeout) ?
(now + cache_timeout) : 0));
if (ret) goto done;
ret = sysdb_set_group_attr(sysdb, name, attrs, SYSDB_MOD_REP);
done:
if (ret == EOK) {
ret = ldb_transaction_commit(sysdb->ldb);
ret = sysdb_error_to_errno(ret);
} else {
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
ldb_transaction_cancel(sysdb->ldb);
}
talloc_zfree(tmp_ctx);
return ret;
}
int sysdb_add_incomplete_group(struct sysdb_ctx *sysdb,
const char *name,
gid_t gid,
const char *original_dn,
bool posix,
time_t now)
{
TALLOC_CTX *tmp_ctx;
int ret;
struct sysdb_attrs *attrs;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
/* try to add the group */
ret = sysdb_add_basic_group(sysdb, name, gid);
if (ret) goto done;
attrs = sysdb_new_attrs(tmp_ctx);
if (!attrs) {
ret = ENOMEM;
goto done;
}
if (!now) {
now = time(NULL);
}
ret = sysdb_attrs_add_time_t(attrs, SYSDB_LAST_UPDATE, now);
if (ret) goto done;
ret = sysdb_attrs_add_time_t(attrs, SYSDB_CACHE_EXPIRE,
now-1);
if (ret) goto done;
ret = sysdb_attrs_add_bool(attrs, SYSDB_POSIX, posix);
if (ret) goto done;
if (original_dn) {
ret = sysdb_attrs_add_string(attrs, SYSDB_ORIG_DN, original_dn);
if (ret) goto done;
}
ret = sysdb_set_group_attr(sysdb, name, attrs, SYSDB_MOD_REP);
done:
if (ret != EOK) {
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Add-Or-Remove-Group-Memeber=========================================== */
/* mod_op must be either SYSDB_MOD_ADD or SYSDB_MOD_DEL */
int sysdb_mod_group_member(struct sysdb_ctx *sysdb,
struct ldb_dn *member_dn,
struct ldb_dn *group_dn,
int mod_op)
{
struct ldb_message *msg;
const char *dn;
int ret;
msg = ldb_msg_new(NULL);
if (!msg) {
ERROR_OUT(ret, ENOMEM, fail);
}
msg->dn = group_dn;
ret = ldb_msg_add_empty(msg, SYSDB_MEMBER, mod_op, NULL);
if (ret != LDB_SUCCESS) {
ERROR_OUT(ret, ENOMEM, fail);
}
dn = ldb_dn_get_linearized(member_dn);
if (!dn) {
ERROR_OUT(ret, EINVAL, fail);
}
ret = ldb_msg_add_fmt(msg, SYSDB_MEMBER, "%s", dn);
if (ret != LDB_SUCCESS) {
ERROR_OUT(ret, EINVAL, fail);
}
ret = ldb_modify(sysdb->ldb, msg);
ret = sysdb_error_to_errno(ret);
fail:
if (ret) {
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(msg);
return ret;
}
/* =Add-Basic-Netgroup-NO-CHECKS============================================= */
int sysdb_add_basic_netgroup(struct sysdb_ctx *sysdb,
const char *name, const char *description)
{
struct ldb_message *msg;
int ret;
msg = ldb_msg_new(NULL);
if (!msg) {
return ENOMEM;
}
/* netgroup dn */
msg->dn = sysdb_netgroup_dn(sysdb, msg, sysdb->domain->name, name);
if (!msg->dn) {
ERROR_OUT(ret, ENOMEM, done);
}
ret = add_string(msg, LDB_FLAG_MOD_ADD,
SYSDB_OBJECTCLASS, SYSDB_NETGROUP_CLASS);
if (ret) goto done;
ret = add_string(msg, LDB_FLAG_MOD_ADD, SYSDB_NAME, name);
if (ret) goto done;
if (description && *description) {
ret = add_string(msg, LDB_FLAG_MOD_ADD,
SYSDB_DESCRIPTION, description);
if (ret) goto done;
}
/* creation time */
ret = add_ulong(msg, LDB_FLAG_MOD_ADD, SYSDB_CREATE_TIME,
(unsigned long) time(NULL));
if (ret) goto done;
ret = ldb_add(sysdb->ldb, msg);
ret = sysdb_error_to_errno(ret);
done:
if (ret) {
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(msg);
return ret;
}
/* =Add-Netgroup-Function==================================================== */
int sysdb_add_netgroup(struct sysdb_ctx *sysdb,
const char *name,
const char *description,
struct sysdb_attrs *attrs,
int cache_timeout,
time_t now)
{
TALLOC_CTX *tmp_ctx;
int ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
ret = ldb_transaction_start(sysdb->ldb);
if (ret) {
ret = sysdb_error_to_errno(ret);
talloc_free(tmp_ctx);
return ret;
}
/* try to add the netgroup */
ret = sysdb_add_basic_netgroup(sysdb, name, description);
if (ret && ret != EEXIST) goto done;
if (!attrs) {
attrs = sysdb_new_attrs(tmp_ctx);
if (!attrs) {
ret = ENOMEM;
goto done;
}
}
if (!now) {
now = time(NULL);
}
ret = sysdb_attrs_add_time_t(attrs, SYSDB_LAST_UPDATE, now);
if (ret) goto done;
ret = sysdb_attrs_add_time_t(attrs, SYSDB_CACHE_EXPIRE,
((cache_timeout) ?
(now + cache_timeout) : 0));
if (ret) goto done;
ret = sysdb_set_netgroup_attr(sysdb, name, attrs, SYSDB_MOD_REP);
done:
if (ret == EOK) {
ret = ldb_transaction_commit(sysdb->ldb);
ret = sysdb_error_to_errno(ret);
}
if (ret != EOK) {
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
ldb_transaction_cancel(sysdb->ldb);
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Store-Users-(Native/Legacy)-(replaces-existing-data)================== */
/* if one of the basic attributes is empty ("") as opposed to NULL,
* this will just remove it */
int sysdb_store_user(struct sysdb_ctx *sysdb,
const char *name,
const char *pwd,
uid_t uid, gid_t gid,
const char *gecos,
const char *homedir,
const char *shell,
struct sysdb_attrs *attrs,
char **remove_attrs,
uint64_t cache_timeout,
time_t now)
{
TALLOC_CTX *tmp_ctx;
struct ldb_message *msg;
int ret;
errno_t sret = EOK;
bool in_transaction = false;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
if (!attrs) {
attrs = sysdb_new_attrs(tmp_ctx);
if (!attrs) {
ret = ENOMEM;
goto done;
}
}
if (pwd && (sysdb->domain->legacy_passwords || !*pwd)) {
ret = sysdb_attrs_add_string(attrs, SYSDB_PWD, pwd);
if (ret) goto done;
}
ret = sysdb_transaction_start(sysdb);
if (ret != EOK) goto done;
in_transaction = true;
ret = sysdb_search_user_by_name(tmp_ctx, sysdb,
name, NULL, &msg);
if (ret && ret != ENOENT) {
goto done;
}
/* get transaction timestamp */
if (!now) {
now = time(NULL);
}
if (ret == ENOENT) {
/* users doesn't exist, turn into adding a user */
ret = sysdb_add_user(sysdb, name, uid, gid,
gecos, homedir, shell, attrs, cache_timeout, now);
goto done;
}
/* the user exists, let's just replace attributes when set */
if (uid) {
ret = sysdb_attrs_add_uint32(attrs, SYSDB_UIDNUM, uid);
if (ret) goto done;
}
if (gid) {
ret = sysdb_attrs_add_uint32(attrs, SYSDB_GIDNUM, gid);
if (ret) goto done;
}
if (uid && !gid && sysdb->mpg) {
ret = sysdb_attrs_add_uint32(attrs, SYSDB_GIDNUM, uid);
if (ret) goto done;
}
if (gecos) {
ret = sysdb_attrs_add_string(attrs, SYSDB_GECOS, gecos);
if (ret) goto done;
}
if (homedir) {
ret = sysdb_attrs_add_string(attrs, SYSDB_HOMEDIR, homedir);
if (ret) goto done;
}
if (shell) {
ret = sysdb_attrs_add_string(attrs, SYSDB_SHELL, shell);
if (ret) goto done;
}
ret = sysdb_attrs_add_time_t(attrs, SYSDB_LAST_UPDATE, now);
if (ret) goto done;
ret = sysdb_attrs_add_time_t(attrs, SYSDB_CACHE_EXPIRE,
((cache_timeout) ?
(now + cache_timeout) : 0));
if (ret) goto done;
ret = sysdb_set_user_attr(sysdb, name, attrs, SYSDB_MOD_REP);
if (ret != EOK) goto done;
if (remove_attrs) {
ret = sysdb_remove_attrs(sysdb, name,
SYSDB_MEMBER_USER,
remove_attrs);
if (ret != EOK) {
DEBUG(4, ("Could not remove missing attributes\n"));
}
}
done:
if (in_transaction) {
if (ret == EOK) {
sret = sysdb_transaction_commit(sysdb);
if (sret != EOK) {
DEBUG(2, ("Could not commit transaction\n"));
}
}
if (ret != EOK || sret != EOK){
sret = sysdb_transaction_cancel(sysdb);
if (sret != EOK) {
DEBUG(2, ("Could not cancel transaction\n"));
}
}
}
if (ret) {
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Store-Group-(Native/Legacy)-(replaces-existing-data)================== */
/* this function does not check that all user members are actually present */
int sysdb_store_group(struct sysdb_ctx *sysdb,
const char *name,
gid_t gid,
struct sysdb_attrs *attrs,
uint64_t cache_timeout,
time_t now)
{
TALLOC_CTX *tmp_ctx;
static const char *src_attrs[] = { SYSDB_NAME, SYSDB_GIDNUM,
SYSDB_ORIG_MODSTAMP, NULL };
struct ldb_message *msg;
bool new_group = false;
int ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
ret = sysdb_search_group_by_name(tmp_ctx, sysdb,
name, src_attrs, &msg);
if (ret && ret != ENOENT) {
goto done;
}
if (ret == ENOENT) {
new_group = true;
}
if (!attrs) {
attrs = sysdb_new_attrs(tmp_ctx);
if (!attrs) {
ret = ENOMEM;
goto done;
}
}
/* get transaction timestamp */
if (!now) {
now = time(NULL);
}
/* FIXME: use the remote modification timestamp to know if the
* group needs any update */
if (new_group) {
/* group doesn't exist, turn into adding a group */
ret = sysdb_add_group(sysdb, name, gid, attrs, cache_timeout, now);
goto done;
}
/* the group exists, let's just replace attributes when set */
if (gid) {
ret = sysdb_attrs_add_uint32(attrs, SYSDB_GIDNUM, gid);
if (ret) goto done;
}
ret = sysdb_attrs_add_time_t(attrs, SYSDB_LAST_UPDATE, now);
if (ret) goto done;
ret = sysdb_attrs_add_time_t(attrs, SYSDB_CACHE_EXPIRE,
((cache_timeout) ?
(now + cache_timeout) : 0));
if (ret) goto done;
ret = sysdb_set_group_attr(sysdb, name, attrs, SYSDB_MOD_REP);
done:
if (ret) {
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Add-User-to-Group(Native/Legacy)====================================== */
static int
sysdb_group_membership_mod(struct sysdb_ctx *sysdb,
const char *group,
const char *member,
enum sysdb_member_type type,
int modify_op)
{
struct ldb_dn *group_dn;
struct ldb_dn *member_dn;
int ret;
TALLOC_CTX *tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
if (type == SYSDB_MEMBER_USER) {
member_dn = sysdb_user_dn(sysdb, tmp_ctx, sysdb->domain->name, member);
if (!member_dn) {
ret = ENOMEM;
goto done;
}
group_dn = sysdb_group_dn(sysdb, tmp_ctx, sysdb->domain->name, group);
if (!group_dn) {
ret = ENOMEM;
goto done;
}
} else if (type == SYSDB_MEMBER_GROUP) {
member_dn = sysdb_group_dn(sysdb, tmp_ctx, sysdb->domain->name, member);
if (!member_dn) {
ret = ENOMEM;
goto done;
}
group_dn = sysdb_group_dn(sysdb, tmp_ctx, sysdb->domain->name, group);
if (!group_dn) {
ret = ENOMEM;
goto done;
}
} else if (type == SYSDB_MEMBER_AUTOFSENTRY) {
/* FIXME - I don't like autofs specific stuff in sysdb_ops.c
* Maybe we should introduce sysdb_common.c ?
*/
member_dn = sysdb_autofsentry_dn(tmp_ctx, sysdb, member);
if (!member_dn) {
ret = ENOMEM;
goto done;
}
group_dn = sysdb_autofsmap_dn(tmp_ctx, sysdb, group);
if (!group_dn) {
ret = ENOMEM;
goto done;
}
} else {
ret = EINVAL;
goto done;
}
ret = sysdb_mod_group_member(sysdb, member_dn, group_dn, modify_op);
done:
talloc_free(tmp_ctx);
return ret;
}
int sysdb_add_group_member(struct sysdb_ctx *sysdb,
const char *group,
const char *member,
enum sysdb_member_type type)
{
return sysdb_group_membership_mod(sysdb, group, member, type, SYSDB_MOD_ADD);
}
/* =Remove-member-from-Group(Native/Legacy)=============================== */
int sysdb_remove_group_member(struct sysdb_ctx *sysdb,
const char *group,
const char *member,
enum sysdb_member_type type)
{
return sysdb_group_membership_mod(sysdb, group, member, type, SYSDB_MOD_DEL);
}
/* =Password-Caching====================================================== */
int sysdb_cache_password(struct sysdb_ctx *sysdb,
const char *username,
const char *password)
{
TALLOC_CTX *tmp_ctx;
struct sysdb_attrs *attrs;
char *hash = NULL;
char *salt;
int ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
ret = s3crypt_gen_salt(tmp_ctx, &salt);
if (ret) {
DEBUG(4, ("Failed to generate random salt.\n"));
goto fail;
}
ret = s3crypt_sha512(tmp_ctx, password, salt, &hash);
if (ret) {
DEBUG(4, ("Failed to create password hash.\n"));
goto fail;
}
attrs = sysdb_new_attrs(tmp_ctx);
if (!attrs) {
ERROR_OUT(ret, ENOMEM, fail);
}
ret = sysdb_attrs_add_string(attrs, SYSDB_CACHEDPWD, hash);
if (ret) goto fail;
/* FIXME: should we use a different attribute for chache passwords ?? */
ret = sysdb_attrs_add_long(attrs, "lastCachedPasswordChange",
(long)time(NULL));
if (ret) goto fail;
ret = sysdb_attrs_add_uint32(attrs, SYSDB_FAILED_LOGIN_ATTEMPTS, 0U);
if (ret) goto fail;
ret = sysdb_set_user_attr(sysdb, username, attrs, SYSDB_MOD_REP);
if (ret) {
goto fail;
}
talloc_zfree(tmp_ctx);
return EOK;
fail:
if (ret) {
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Custom Search================== */
int sysdb_search_custom(TALLOC_CTX *mem_ctx,
struct sysdb_ctx *sysdb,
const char *filter,
const char *subtree_name,
const char **attrs,
size_t *msgs_count,
struct ldb_message ***msgs)
{
struct ldb_dn *basedn;
int ret;
if (filter == NULL || subtree_name == NULL) {
return EINVAL;
}
basedn = sysdb_custom_subtree_dn(sysdb, mem_ctx,
sysdb->domain->name, subtree_name);
if (basedn == NULL) {
DEBUG(1, ("sysdb_custom_subtree_dn failed.\n"));
return ENOMEM;
}
if (!ldb_dn_validate(basedn)) {
DEBUG(1, ("Failed to create DN.\n"));
return EINVAL;
}
ret = sysdb_search_entry(mem_ctx, sysdb, basedn,
LDB_SCOPE_SUBTREE, filter, attrs,
msgs_count, msgs);
return ret;
}
int sysdb_search_custom_by_name(TALLOC_CTX *mem_ctx,
struct sysdb_ctx *sysdb,
const char *object_name,
const char *subtree_name,
const char **attrs,
size_t *_count,
struct ldb_message ***_msgs)
{
TALLOC_CTX *tmp_ctx;
struct ldb_dn *basedn;
struct ldb_message **msgs;
size_t count;
int ret;
if (object_name == NULL || subtree_name == NULL) {
return EINVAL;
}
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
basedn = sysdb_custom_dn(sysdb, tmp_ctx,
sysdb->domain->name, object_name, subtree_name);
if (basedn == NULL) {
DEBUG(1, ("sysdb_custom_dn failed.\n"));
ret = ENOMEM;
goto done;
}
if (!ldb_dn_validate(basedn)) {
DEBUG(1, ("Failed to create DN.\n"));
ret = EINVAL;
goto done;
}
ret = sysdb_search_entry(tmp_ctx, sysdb, basedn,
LDB_SCOPE_BASE, NULL, attrs, &count, &msgs);
if (ret) {
goto done;
}
if (count > 1) {
DEBUG(1, ("More than one result found.\n"));
ret = EFAULT;
goto done;
}
*_count = count;
*_msgs = talloc_move(mem_ctx, &msgs);
done:
talloc_zfree(tmp_ctx);
return ret;
}
/* =Custom Store (replaces-existing-data)================== */
int sysdb_store_custom(struct sysdb_ctx *sysdb,
const char *object_name,
const char *subtree_name,
struct sysdb_attrs *attrs)
{
TALLOC_CTX *tmp_ctx;
const char *search_attrs[] = { "*", NULL };
size_t resp_count = 0;
struct ldb_message **resp;
struct ldb_message *msg;
struct ldb_message_element *el;
bool add_object = false;
int ret;
int i;
if (object_name == NULL || subtree_name == NULL) {
return EINVAL;
}
ret = ldb_transaction_start(sysdb->ldb);
if (ret) {
return sysdb_error_to_errno(ret);
}
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
ret = ENOMEM;
goto done;
}
ret = sysdb_search_custom_by_name(tmp_ctx, sysdb,
object_name, subtree_name,
search_attrs, &resp_count, &resp);
if (ret != EOK && ret != ENOENT) {
goto done;
}
if (ret == ENOENT) {
add_object = true;
}
msg = ldb_msg_new(tmp_ctx);
if (msg == NULL) {
ret = ENOMEM;
goto done;
}
msg->dn = sysdb_custom_dn(sysdb, tmp_ctx,
sysdb->domain->name, object_name, subtree_name);
if (!msg->dn) {
DEBUG(1, ("sysdb_custom_dn failed.\n"));
ret = ENOMEM;
goto done;
}
msg->elements = talloc_array(msg, struct ldb_message_element, attrs->num);
if (!msg->elements) {
ret = ENOMEM;
goto done;
}
for (i = 0; i < attrs->num; i++) {
msg->elements[i] = attrs->a[i];
if (add_object) {
msg->elements[i].flags = LDB_FLAG_MOD_ADD;
} else {
el = ldb_msg_find_element(resp[0], attrs->a[i].name);
if (el == NULL) {
msg->elements[i].flags = LDB_FLAG_MOD_ADD;
} else {
msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
}
}
}
msg->num_elements = attrs->num;
if (add_object) {
ret = ldb_add(sysdb->ldb, msg);
} else {
ret = ldb_modify(sysdb->ldb, msg);
}
if (ret != LDB_SUCCESS) {
DEBUG(1, ("Failed to store custmo entry: %s(%d)[%s]\n",
ldb_strerror(ret), ret, ldb_errstring(sysdb->ldb)));
ret = sysdb_error_to_errno(ret);
}
done:
if (ret) {
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
ldb_transaction_cancel(sysdb->ldb);
} else {
ret = ldb_transaction_commit(sysdb->ldb);
ret = sysdb_error_to_errno(ret);
}
talloc_zfree(tmp_ctx);
return ret;
}
/* = Custom Delete======================================= */
int sysdb_delete_custom(struct sysdb_ctx *sysdb,
const char *object_name,
const char *subtree_name)
{
TALLOC_CTX *tmp_ctx;
struct ldb_dn *dn;
int ret;
if (object_name == NULL || subtree_name == NULL) {
return EINVAL;
}
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
dn = sysdb_custom_dn(sysdb, tmp_ctx, sysdb->domain->name, object_name, subtree_name);
if (dn == NULL) {
DEBUG(1, ("sysdb_custom_dn failed.\n"));
ret = ENOMEM;
goto done;
}
ret = ldb_delete(sysdb->ldb, dn);
switch (ret) {
case LDB_SUCCESS:
case LDB_ERR_NO_SUCH_OBJECT:
ret = EOK;
break;
default:
DEBUG(1, ("LDB Error: %s(%d)\nError Message: [%s]\n",
ldb_strerror(ret), ret, ldb_errstring(sysdb->ldb)));
ret = sysdb_error_to_errno(ret);
break;
}
done:
talloc_zfree(tmp_ctx);
return ret;
}
/* = ASQ search request ======================================== */
int sysdb_asq_search(TALLOC_CTX *mem_ctx,
struct sysdb_ctx *sysdb,
struct ldb_dn *base_dn,
const char *expression,
const char *asq_attribute,
const char **attrs,
size_t *msgs_count,
struct ldb_message ***msgs)
{
TALLOC_CTX *tmp_ctx;
struct ldb_request *ldb_req;
struct ldb_control **ctrl;
struct ldb_asq_control *asq_control;
struct ldb_result *res;
int ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
ctrl = talloc_array(tmp_ctx, struct ldb_control *, 2);
if (ctrl == NULL) {
ret = ENOMEM;
goto fail;
}
ctrl[0] = talloc(ctrl, struct ldb_control);
if (ctrl[0] == NULL) {
ret = ENOMEM;
goto fail;
}
ctrl[1] = NULL;
ctrl[0]->oid = LDB_CONTROL_ASQ_OID;
ctrl[0]->critical = 1;
asq_control = talloc(ctrl[0], struct ldb_asq_control);
if (asq_control == NULL) {
ret = ENOMEM;
goto fail;
}
asq_control->request = 1;
asq_control->source_attribute = talloc_strdup(asq_control, asq_attribute);
if (asq_control->source_attribute == NULL) {
ret = ENOMEM;
goto fail;
}
asq_control->src_attr_len = strlen(asq_control->source_attribute);
ctrl[0]->data = asq_control;
res = talloc_zero(tmp_ctx, struct ldb_result);
if (!res) {
ret = ENOMEM;
goto fail;
}
ret = ldb_build_search_req(&ldb_req, sysdb->ldb, tmp_ctx,
base_dn, LDB_SCOPE_BASE,
expression, attrs, ctrl,
res, ldb_search_default_callback, NULL);
if (ret != LDB_SUCCESS) {
ret = sysdb_error_to_errno(ret);
goto fail;
}
ret = ldb_request(sysdb->ldb, ldb_req);
if (ret == LDB_SUCCESS) {
ret = ldb_wait(ldb_req->handle, LDB_WAIT_ALL);
}
if (ret) {
ret = sysdb_error_to_errno(ret);
goto fail;
}
*msgs_count = res->count;
*msgs = talloc_move(mem_ctx, &res->msgs);
talloc_zfree(tmp_ctx);
return EOK;
fail:
if (ret == ENOENT) {
DEBUG(SSSDBG_TRACE_FUNC, ("No such entry\n"));
}
else if (ret) {
DEBUG(SSSDBG_TRACE_FUNC, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Search-Users-with-Custom-Filter====================================== */
int sysdb_search_users(TALLOC_CTX *mem_ctx,
struct sysdb_ctx *sysdb,
const char *sub_filter,
const char **attrs,
size_t *msgs_count,
struct ldb_message ***msgs)
{
TALLOC_CTX *tmp_ctx;
struct ldb_dn *basedn;
char *filter;
int ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
basedn = ldb_dn_new_fmt(tmp_ctx, sysdb->ldb,
SYSDB_TMPL_USER_BASE, sysdb->domain->name);
if (!basedn) {
DEBUG(2, ("Failed to build base dn\n"));
ret = ENOMEM;
goto fail;
}
filter = talloc_asprintf(tmp_ctx, "(&(%s)%s)", SYSDB_UC, sub_filter);
if (!filter) {
DEBUG(2, ("Failed to build filter\n"));
ret = ENOMEM;
goto fail;
}
DEBUG(6, ("Search users with filter: %s\n", filter));
ret = sysdb_search_entry(mem_ctx, sysdb, basedn,
LDB_SCOPE_SUBTREE, filter, attrs,
msgs_count, msgs);
if (ret) {
goto fail;
}
talloc_zfree(tmp_ctx);
return EOK;
fail:
if (ret == ENOENT) {
DEBUG(SSSDBG_TRACE_FUNC, ("No such entry\n"));
}
else if (ret) {
DEBUG(SSSDBG_TRACE_FUNC, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Delete-User-by-Name-OR-uid============================================ */
int sysdb_delete_user(struct sysdb_ctx *sysdb,
const char *name, uid_t uid)
{
TALLOC_CTX *tmp_ctx;
struct ldb_message *msg;
int ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
if (name) {
ret = sysdb_search_user_by_name(tmp_ctx, sysdb,
name, NULL, &msg);
} else {
ret = sysdb_search_user_by_uid(tmp_ctx, sysdb,
uid, NULL, &msg);
}
if (ret) {
goto fail;
}
if (name && uid) {
/* verify name/gid match */
const char *c_name;
uint64_t c_uid;
c_name = ldb_msg_find_attr_as_string(msg, SYSDB_NAME, NULL);
c_uid = ldb_msg_find_attr_as_uint64(msg, SYSDB_UIDNUM, 0);
if (c_name == NULL || c_uid == 0) {
DEBUG(2, ("Attribute is missing but this should never happen!\n"));
ret = EFAULT;
goto fail;
}
if (strcmp(name, c_name) || uid != c_uid) {
/* this is not the entry we are looking for */
ret = EINVAL;
goto fail;
}
}
ret = sysdb_delete_entry(sysdb, msg->dn, false);
if (ret) {
goto fail;
}
talloc_zfree(tmp_ctx);
return EOK;
fail:
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
talloc_zfree(tmp_ctx);
return ret;
}
/* =Search-Groups-with-Custom-Filter===================================== */
int sysdb_search_groups(TALLOC_CTX *mem_ctx,
struct sysdb_ctx *sysdb,
const char *sub_filter,
const char **attrs,
size_t *msgs_count,
struct ldb_message ***msgs)
{
TALLOC_CTX *tmp_ctx;
struct ldb_dn *basedn;
char *filter;
int ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
basedn = ldb_dn_new_fmt(tmp_ctx, sysdb->ldb,
SYSDB_TMPL_GROUP_BASE, sysdb->domain->name);
if (!basedn) {
DEBUG(2, ("Failed to build base dn\n"));
ret = ENOMEM;
goto fail;
}
filter = talloc_asprintf(tmp_ctx, "(&(%s)%s)", SYSDB_GC, sub_filter);
if (!filter) {
DEBUG(2, ("Failed to build filter\n"));
ret = ENOMEM;
goto fail;
}
DEBUG(6, ("Search groups with filter: %s\n", filter));
ret = sysdb_search_entry(mem_ctx, sysdb, basedn,
LDB_SCOPE_SUBTREE, filter, attrs,
msgs_count, msgs);
if (ret) {
goto fail;
}
talloc_zfree(tmp_ctx);
return EOK;
fail:
if (ret == ENOENT) {
DEBUG(SSSDBG_TRACE_FUNC, ("No such entry\n"));
}
else if (ret) {
DEBUG(SSSDBG_TRACE_FUNC, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Delete-Group-by-Name-OR-gid=========================================== */
int sysdb_delete_group(struct sysdb_ctx *sysdb,
const char *name, gid_t gid)
{
TALLOC_CTX *tmp_ctx;
struct ldb_message *msg;
int ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
if (name) {
ret = sysdb_search_group_by_name(tmp_ctx, sysdb,
name, NULL, &msg);
} else {
ret = sysdb_search_group_by_gid(tmp_ctx, sysdb,
gid, NULL, &msg);
}
if (ret) {
goto fail;
}
if (name && gid) {
/* verify name/gid match */
const char *c_name;
uint64_t c_gid;
c_name = ldb_msg_find_attr_as_string(msg, SYSDB_NAME, NULL);
c_gid = ldb_msg_find_attr_as_uint64(msg, SYSDB_GIDNUM, 0);
if (c_name == NULL || c_gid == 0) {
DEBUG(2, ("Attribute is missing but this should never happen!\n"));
ret = EFAULT;
goto fail;
}
if (strcmp(name, c_name) || gid != c_gid) {
/* this is not the entry we are looking for */
ret = EINVAL;
goto fail;
}
}
ret = sysdb_delete_entry(sysdb, msg->dn, false);
if (ret) {
goto fail;
}
talloc_zfree(tmp_ctx);
return EOK;
fail:
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
talloc_zfree(tmp_ctx);
return ret;
}
/* =Search-Netgroups-with-Custom-Filter===================================== */
int sysdb_search_netgroups(TALLOC_CTX *mem_ctx,
struct sysdb_ctx *sysdb,
const char *sub_filter,
const char **attrs,
size_t *msgs_count,
struct ldb_message ***msgs)
{
TALLOC_CTX *tmp_ctx;
struct ldb_dn *basedn;
char *filter;
int ret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
basedn = ldb_dn_new_fmt(tmp_ctx, sysdb->ldb,
SYSDB_TMPL_NETGROUP_BASE, sysdb->domain->name);
if (!basedn) {
DEBUG(2, ("Failed to build base dn\n"));
ret = ENOMEM;
goto fail;
}
filter = talloc_asprintf(tmp_ctx, "(&(%s)%s)", SYSDB_NC, sub_filter);
if (!filter) {
DEBUG(2, ("Failed to build filter\n"));
ret = ENOMEM;
goto fail;
}
DEBUG(6, ("Search netgroups with filter: %s\n", filter));
ret = sysdb_search_entry(mem_ctx, sysdb, basedn,
LDB_SCOPE_SUBTREE, filter, attrs,
msgs_count, msgs);
if (ret) {
goto fail;
}
talloc_zfree(tmp_ctx);
return EOK;
fail:
if (ret == ENOENT) {
DEBUG(SSSDBG_TRACE_FUNC, ("Entry not found\n"));
} else {
DEBUG(SSSDBG_TRACE_FUNC, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_zfree(tmp_ctx);
return ret;
}
/* =Delete-Netgroup-by-Name============================================== */
int sysdb_delete_netgroup(struct sysdb_ctx *sysdb,
const char *name)
{
TALLOC_CTX *tmp_ctx;
struct ldb_message *msg;
int ret;
if (!name) return EINVAL;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
ret = sysdb_search_netgroup_by_name(tmp_ctx, sysdb,
name, NULL, &msg);
if (ret != EOK && ret != ENOENT) {
DEBUG(6, ("sysdb_search_netgroup_by_name failed: %d (%s)\n",
ret, strerror(ret)));
goto done;
} else if (ret == ENOENT) {
DEBUG(6, ("Netgroup does not exist, nothing to delete\n"));
ret = EOK;
goto done;
}
ret = sysdb_delete_entry(sysdb, msg->dn, false);
if (ret != EOK) {
goto done;
}
done:
if (ret != EOK) {
DEBUG(6, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_free(tmp_ctx);
return ret;
}
/* ========= Authentication against cached password ============ */
errno_t check_failed_login_attempts(struct confdb_ctx *cdb,
struct ldb_message *ldb_msg,
uint32_t *failed_login_attempts,
time_t *delayed_until)
{
int ret;
int allowed_failed_login_attempts;
int failed_login_delay;
time_t last_failed_login;
time_t end;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
*delayed_until = -1;
*failed_login_attempts = ldb_msg_find_attr_as_uint(ldb_msg,
SYSDB_FAILED_LOGIN_ATTEMPTS, 0);
last_failed_login = (time_t) ldb_msg_find_attr_as_int64(ldb_msg,
SYSDB_LAST_FAILED_LOGIN, 0);
ret = confdb_get_int(cdb, CONFDB_PAM_CONF_ENTRY,
CONFDB_PAM_FAILED_LOGIN_ATTEMPTS,
CONFDB_DEFAULT_PAM_FAILED_LOGIN_ATTEMPTS,
&allowed_failed_login_attempts);
if (ret != EOK) {
DEBUG(1, ("Failed to read the number of allowed failed login "
"attempts.\n"));
ret = EIO;
goto done;
}
ret = confdb_get_int(cdb, CONFDB_PAM_CONF_ENTRY,
CONFDB_PAM_FAILED_LOGIN_DELAY,
CONFDB_DEFAULT_PAM_FAILED_LOGIN_DELAY,
&failed_login_delay);
if (ret != EOK) {
DEBUG(1, ("Failed to read the failed login delay.\n"));
ret = EIO;
goto done;
}
DEBUG(9, ("Failed login attempts [%d], allowed failed login attempts [%d], "
"failed login delay [%d].\n", *failed_login_attempts,
allowed_failed_login_attempts, failed_login_delay));
if (allowed_failed_login_attempts) {
if (*failed_login_attempts >= allowed_failed_login_attempts) {
if (failed_login_delay) {
end = last_failed_login + (failed_login_delay * 60);
if (end < time(NULL)) {
DEBUG(7, ("failed_login_delay has passed, "
"resetting failed_login_attempts.\n"));
*failed_login_attempts = 0;
} else {
DEBUG(7, ("login delayed until %lld.\n", (long long) end));
*delayed_until = end;
ret = EACCES;
goto done;
}
} else {
DEBUG(4, ("Too many failed logins.\n"));
ret = EACCES;
goto done;
}
}
}
ret = EOK;
done:
talloc_free(tmp_ctx);
return ret;
}
int sysdb_cache_auth(struct sysdb_ctx *sysdb,
const char *name,
const uint8_t *authtok,
size_t authtok_size,
struct confdb_ctx *cdb,
bool just_check,
time_t *_expire_date,
time_t *_delayed_until)
{
TALLOC_CTX *tmp_ctx;
const char *attrs[] = { SYSDB_NAME, SYSDB_CACHEDPWD, SYSDB_DISABLED,
SYSDB_LAST_LOGIN, SYSDB_LAST_ONLINE_AUTH,
"lastCachedPasswordChange",
"accountExpires", SYSDB_FAILED_LOGIN_ATTEMPTS,
SYSDB_LAST_FAILED_LOGIN, NULL };
struct ldb_message *ldb_msg;
const char *userhash;
char *comphash;
char *password = NULL;
uint64_t lastLogin = 0;
int cred_expiration;
uint32_t failed_login_attempts = 0;
struct sysdb_attrs *update_attrs;
bool authentication_successful = false;
time_t expire_date = -1;
time_t delayed_until = -1;
int ret;
int i;
if (name == NULL || *name == '\0') {
DEBUG(1, ("Missing user name.\n"));
return EINVAL;
}
if (cdb == NULL) {
DEBUG(1, ("Missing config db context.\n"));
return EINVAL;
}
if (sysdb == NULL) {
DEBUG(1, ("Missing sysdb db context.\n"));
return EINVAL;
}
if (!sysdb->domain->cache_credentials) {
DEBUG(3, ("Cached credentials not available.\n"));
return EINVAL;
}
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
ret = ldb_transaction_start(sysdb->ldb);
if (ret) {
talloc_zfree(tmp_ctx);
ret = sysdb_error_to_errno(ret);
return ret;
}
ret = sysdb_search_user_by_name(tmp_ctx, sysdb,
name, attrs, &ldb_msg);
if (ret != EOK) {
DEBUG(1, ("sysdb_search_user_by_name failed [%d][%s].\n",
ret, strerror(ret)));
goto done;
}
/* Check offline_auth_cache_timeout */
lastLogin = ldb_msg_find_attr_as_uint64(ldb_msg,
SYSDB_LAST_ONLINE_AUTH,
0);
ret = confdb_get_int(cdb, CONFDB_PAM_CONF_ENTRY,
CONFDB_PAM_CRED_TIMEOUT, 0, &cred_expiration);
if (ret != EOK) {
DEBUG(1, ("Failed to read expiration time of offline credentials.\n"));
goto done;
}
DEBUG(9, ("Offline credentials expiration is [%d] days.\n",
cred_expiration));
if (cred_expiration) {
expire_date = lastLogin + (cred_expiration * 86400);
if (expire_date < time(NULL)) {
DEBUG(4, ("Cached user entry is too old.\n"));
expire_date = 0;
ret = EACCES;
goto done;
}
} else {
expire_date = 0;
}
ret = check_failed_login_attempts(cdb, ldb_msg, &failed_login_attempts,
&delayed_until);
if (ret != EOK) {
DEBUG(1, ("Failed to check login attempts\n"));
goto done;
}
/* TODO: verify user account (disabled, expired ...) */
password = talloc_strndup(tmp_ctx, (const char *)authtok, authtok_size);
if (password == NULL) {
DEBUG(1, ("talloc_strndup failed.\n"));
ret = ENOMEM;
goto done;
}
userhash = ldb_msg_find_attr_as_string(ldb_msg, SYSDB_CACHEDPWD, NULL);
if (userhash == NULL || *userhash == '\0') {
DEBUG(4, ("Cached credentials not available.\n"));
ret = ENOENT;
goto done;
}
ret = s3crypt_sha512(tmp_ctx, password, userhash, &comphash);
if (ret) {
DEBUG(4, ("Failed to create password hash.\n"));
ret = EFAULT;
goto done;
}
update_attrs = sysdb_new_attrs(tmp_ctx);
if (update_attrs == NULL) {
DEBUG(1, ("sysdb_new_attrs failed.\n"));
ret = ENOMEM;
goto done;
}
if (strcmp(userhash, comphash) == 0) {
/* TODO: probable good point for audit logging */
DEBUG(4, ("Hashes do match!\n"));
authentication_successful = true;
if (just_check) {
ret = EOK;
goto done;
}
ret = sysdb_attrs_add_time_t(update_attrs,
SYSDB_LAST_LOGIN, time(NULL));
if (ret != EOK) {
DEBUG(3, ("sysdb_attrs_add_time_t failed, "
"but authentication is successful.\n"));
ret = EOK;
goto done;
}
ret = sysdb_attrs_add_uint32(update_attrs,
SYSDB_FAILED_LOGIN_ATTEMPTS, 0U);
if (ret != EOK) {
DEBUG(3, ("sysdb_attrs_add_uint32 failed, "
"but authentication is successful.\n"));
ret = EOK;
goto done;
}
} else {
DEBUG(4, ("Authentication failed.\n"));
authentication_successful = false;
ret = sysdb_attrs_add_time_t(update_attrs,
SYSDB_LAST_FAILED_LOGIN,
time(NULL));
if (ret != EOK) {
DEBUG(3, ("sysdb_attrs_add_time_t failed\n."));
goto done;
}
ret = sysdb_attrs_add_uint32(update_attrs,
SYSDB_FAILED_LOGIN_ATTEMPTS,
++failed_login_attempts);
if (ret != EOK) {
DEBUG(3, ("sysdb_attrs_add_uint32 failed.\n"));
goto done;
}
}
ret = sysdb_set_user_attr(sysdb, name, update_attrs, LDB_FLAG_MOD_REPLACE);
if (ret) {
DEBUG(1, ("Failed to update Login attempt information!\n"));
}
done:
if (_expire_date != NULL) {
*_expire_date = expire_date;
}
if (_delayed_until != NULL) {
*_delayed_until = delayed_until;
}
if (password) for (i = 0; password[i]; i++) password[i] = 0;
if (ret) {
ldb_transaction_cancel(sysdb->ldb);
} else {
ret = ldb_transaction_commit(sysdb->ldb);
ret = sysdb_error_to_errno(ret);
if (ret) {
DEBUG(2, ("Failed to commit transaction!\n"));
}
}
if (authentication_successful) {
ret = EOK;
} else {
if (ret == EOK) {
ret = EINVAL;
}
}
talloc_free(tmp_ctx);
return ret;
}
errno_t sysdb_update_members(struct sysdb_ctx *sysdb,
const char *member,
enum sysdb_member_type type,
const char *const *add_groups,
const char *const *del_groups)
{
errno_t ret;
int i;
TALLOC_CTX *tmp_ctx = talloc_new(NULL);
if(!tmp_ctx) {
return ENOMEM;
}
ret = sysdb_transaction_start(sysdb);
if (ret != EOK) {
DEBUG(0, ("Failed to start update transaction\n"));
goto done;
}
if (add_groups) {
/* Add the user to all add_groups */
for (i = 0; add_groups[i]; i++) {
ret = sysdb_add_group_member(sysdb, add_groups[i], member,
type);
if (ret != EOK) {
DEBUG(1, ("Could not add member [%s] to group [%s]. "
"Skipping.\n", member, add_groups[i]));
/* Continue on, we should try to finish the rest */
}
}
}
if (del_groups) {
/* Remove the user from all del_groups */
for (i = 0; del_groups[i]; i++) {
ret = sysdb_remove_group_member(sysdb, del_groups[i], member,
type);
if (ret != EOK) {
DEBUG(1, ("Could not remove member [%s] from group [%s]. "
"Skipping\n", member, del_groups[i]));
/* Continue on, we should try to finish the rest */
}
}
}
ret = sysdb_transaction_commit(sysdb);
done:
if (ret != EOK) {
sysdb_transaction_cancel(sysdb);
}
talloc_free(tmp_ctx);
return ret;
}
errno_t sysdb_add_netgroup_tuple(struct sysdb_ctx *sysdb,
const char *netgroup,
const char *hostname,
const char *username,
const char *domainname)
{
return sysdb_mod_netgroup_tuple(sysdb, netgroup, hostname,
username, domainname, SYSDB_MOD_ADD);
}
errno_t sysdb_remove_netgroup_tuple(struct sysdb_ctx *sysdb,
const char *netgroup,
const char *hostname,
const char *username,
const char *domainname)
{
return sysdb_mod_netgroup_tuple(sysdb, netgroup, hostname,
username, domainname, SYSDB_MOD_DEL);
}
errno_t sysdb_mod_netgroup_tuple(struct sysdb_ctx *sysdb,
const char *netgroup,
const char *hostname,
const char *username,
const char *domainname,
int mod_op)
{
errno_t ret;
int lret;
struct ldb_message *msg;
char *triple;
msg = ldb_msg_new(NULL);
if (!msg) {
ERROR_OUT(ret, ENOMEM, done);
}
msg->dn = sysdb_netgroup_dn(sysdb, msg, sysdb->domain->name, netgroup);
if (!msg->dn) {
ERROR_OUT(ret, ENOMEM, done);
}
triple = talloc_asprintf(msg, "(%s,%s,%s)",
hostname, username, domainname);
if (!triple) {
ERROR_OUT(ret, ENOMEM, done);
}
ret = add_string(msg, mod_op, SYSDB_NETGROUP_TRIPLE, triple);
if (ret != EOK) {
goto done;
}
lret = ldb_modify(sysdb->ldb, msg);
ret = sysdb_error_to_errno(lret);
done:
if (ret) {
DEBUG(3, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_free(msg);
return ret;
}
errno_t sysdb_add_netgroup_member(struct sysdb_ctx *sysdb,
const char *netgroup,
const char *member_netgroup)
{
return sysdb_mod_netgroup_member(sysdb, netgroup,
member_netgroup, SYSDB_MOD_ADD);
}
errno_t sysdb_remove_netgroup_member(struct sysdb_ctx *sysdb,
const char *netgroup,
const char *member_netgroup)
{
return sysdb_mod_netgroup_member(sysdb, netgroup,
member_netgroup, SYSDB_MOD_DEL);
}
errno_t sysdb_mod_netgroup_member(struct sysdb_ctx *sysdb,
const char *netgroup,
const char *member_netgroup,
int mod_op)
{
errno_t ret;
int lret;
struct ldb_message *msg;
char *member;
msg = ldb_msg_new(NULL);
if (!msg) {
ERROR_OUT(ret, ENOMEM, done);
}
msg->dn = sysdb_netgroup_dn(sysdb, msg, sysdb->domain->name, netgroup);
if (!msg->dn) {
ERROR_OUT(ret, ENOMEM, done);
}
member = talloc_asprintf(msg, SYSDB_TMPL_NETGROUP,
member_netgroup, sysdb->domain->name);
if (!member) {
ret = ENOMEM;
goto done;
}
ret = add_string(msg, mod_op, SYSDB_MEMBER, member);
if (ret != EOK) {
goto done;
}
lret = ldb_modify(sysdb->ldb, msg);
ret = sysdb_error_to_errno(lret);
done:
if (ret) {
DEBUG(3, ("Error: %d (%s)\n", ret, strerror(ret)));
}
talloc_free(msg);
return ret;
}
errno_t sysdb_remove_attrs(struct sysdb_ctx *sysdb,
const char *name,
enum sysdb_member_type type,
char **remove_attrs)
{
errno_t ret;
errno_t sret = EOK;
bool in_transaction = false;
struct ldb_message *msg;
int lret;
size_t i;
msg = ldb_msg_new(NULL);
if (!msg) return ENOMEM;
switch(type) {
case SYSDB_MEMBER_USER:
msg->dn = sysdb_user_dn(sysdb, msg, sysdb->domain->name, name);
break;
case SYSDB_MEMBER_GROUP:
msg->dn = sysdb_group_dn(sysdb, msg, sysdb->domain->name, name);
break;
case SYSDB_MEMBER_SERVICE:
msg->dn = sysdb_svc_dn(sysdb, msg, sysdb->domain->name, name);
break;
case SYSDB_MEMBER_AUTOFSENTRY:
msg->dn = sysdb_autofsmap_dn(msg, sysdb, name);
break;
}
if (!msg->dn) {
ret = ENOMEM;
goto done;
}
ret = sysdb_transaction_start(sysdb);
if (ret != EOK) goto done;
in_transaction = true;
for (i = 0; remove_attrs[i]; i++) {
/* SYSDB_MEMBEROF is exclusively handled by the memberof plugin */
if (strcasecmp(remove_attrs[i], SYSDB_MEMBEROF) == 0) {
continue;
}
DEBUG(8, ("Removing attribute [%s] from [%s]\n",
remove_attrs[i], name));
lret = ldb_msg_add_empty(msg, remove_attrs[i],
LDB_FLAG_MOD_DELETE, NULL);
if (lret != LDB_SUCCESS) {
ret = sysdb_error_to_errno(lret);
goto done;
}
/* We need to do individual modifies so that we can
* skip unknown attributes. Otherwise, any nonexistent
* attribute in the sysdb will cause other removals to
* fail.
*/
lret = ldb_modify(sysdb->ldb, msg);
if (lret != LDB_SUCCESS && lret != LDB_ERR_NO_SUCH_ATTRIBUTE) {
ret = sysdb_error_to_errno(lret);
goto done;
}
/* Remove this attribute and move on to the next one */
ldb_msg_remove_attr(msg, remove_attrs[i]);
}
ret = EOK;
done:
if (in_transaction) {
if (ret == EOK) {
sret = sysdb_transaction_commit(sysdb);
if (sret != EOK) {
DEBUG(2, ("Could not commit transaction\n"));
}
}
if (ret != EOK || sret != EOK){
sret = sysdb_transaction_cancel(sysdb);
if (sret != EOK) {
DEBUG(2, ("Could not cancel transaction\n"));
}
}
}
talloc_free(msg);
return ret;
}