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|
/*
SSSD
sss_cache
Copyright (C) Jan Zeleny <jzeleny@redhat.com> 2011
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 <stdio.h>
#include <stdlib.h>
#include <talloc.h>
#include <popt.h>
#include <sys/types.h>
#include "util/util.h"
#include "tools/sss_sync_ops.h"
#include "db/sysdb.h"
#include "db/sysdb_services.h"
#include "db/sysdb_autofs.h"
#define INVALIDATE_NONE 0
#define INVALIDATE_USERS 1
#define INVALIDATE_GROUPS 2
#define INVALIDATE_NETGROUPS 4
#define INVALIDATE_SERVICES 8
#define INVALIDATE_AUTOFSMAPS 16
enum sss_cache_entry {
TYPE_USER=0,
TYPE_GROUP,
TYPE_NETGROUP,
TYPE_SERVICE,
TYPE_AUTOFSMAP
};
struct entry_type_t {
const char *type_string;
int (* search_fn)(TALLOC_CTX *, struct sysdb_ctx *,
const char *, const char **, size_t *, struct ldb_message ***);
};
static errno_t search_services(TALLOC_CTX *mem_ctx, struct sysdb_ctx *sysdb,
const char *sub_filter, const char **attrs,
size_t *msgs_count, struct ldb_message ***msgs);
static errno_t search_autofsmaps(TALLOC_CTX *mem_ctx, struct sysdb_ctx *sysdb,
const char *sub_filter, const char **attrs,
size_t *msgs_count, struct ldb_message ***msgs);
static struct entry_type_t entry_types[] = {
{"user", sysdb_search_users},
{"group", sysdb_search_groups},
{"netgroup", sysdb_search_netgroups},
{"service", search_services},
{"autofs map", search_autofsmaps}
};
struct cache_tool_ctx {
struct confdb_ctx *confdb;
struct sss_domain_info *domains;
struct sysdb_ctx_list *sysdb_list;
char *user_filter;
char *group_filter;
char *netgroup_filter;
char *service_filter;
char *autofs_filter;
char *user_name;
char *group_name;
char *netgroup_name;
char *service_name;
char *autofs_name;
};
errno_t init_domains(struct cache_tool_ctx *ctx, const char *domain);
errno_t init_context(int argc, const char *argv[], struct cache_tool_ctx **tctx);
errno_t invalidate_entry(TALLOC_CTX *ctx, struct sysdb_ctx *sysdb,
const char *name, int entry_type);
bool invalidate_entries(TALLOC_CTX *ctx, struct sysdb_ctx *sysdb,
enum sss_cache_entry entry_type, const char *filter,
const char *name);
int main(int argc, const char *argv[])
{
errno_t ret;
struct cache_tool_ctx *tctx = NULL;
struct sysdb_ctx *sysdb;
int i;
bool skipped;
ret = init_context(argc, argv, &tctx);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
("Error initializing context for the application\n"));
goto done;
}
for (i = 0; i < tctx->sysdb_list->num_dbs; i++) {
sysdb = tctx->sysdb_list->dbs[i];
ret = sysdb_transaction_start(sysdb);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Could not start the transaction!\n"));
goto done;
}
skipped = true;
skipped &= !invalidate_entries(tctx, sysdb, TYPE_USER,
tctx->user_filter, tctx->user_name);
skipped &= !invalidate_entries(tctx, sysdb, TYPE_GROUP,
tctx->group_filter, tctx->group_name);
skipped &= !invalidate_entries(tctx, sysdb, TYPE_NETGROUP,
tctx->netgroup_filter, tctx->netgroup_name);
skipped &= !invalidate_entries(tctx, sysdb, TYPE_SERVICE,
tctx->service_filter, tctx->service_name);
skipped &= !invalidate_entries(tctx, sysdb, TYPE_AUTOFSMAP,
tctx->autofs_filter, tctx->autofs_name);
ret = sysdb_transaction_commit(sysdb);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Could not commit the transaction!\n"));
ret = sysdb_transaction_cancel(sysdb);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, ("Failed to cancel transaction\n"));
}
}
if (skipped == true) {
ERROR("No cache object matched the specified search\n");
ret = ENOENT;
goto done;
}
}
done:
if (tctx) talloc_free(tctx);
return ret;
}
bool invalidate_entries(TALLOC_CTX *ctx, struct sysdb_ctx *sysdb,
enum sss_cache_entry entry_type, const char *filter,
const char *name)
{
const char *attrs[] = {SYSDB_NAME, NULL};
size_t msg_count;
struct ldb_message **msgs;
struct entry_type_t type_rec;
errno_t ret;
int i;
const char *c_name;
bool iret;
if (!filter) return false;
type_rec = entry_types[entry_type];
ret = type_rec.search_fn(ctx, sysdb, filter, attrs,
&msg_count, &msgs);
if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE,
("Searching for %s with filter %s failed\n",
type_rec.type_string, filter));
if (name) {
ERROR("No such %1$s named %2$s, skipping\n",
type_rec.type_string, name);
} else {
ERROR("No objects of type %1$s in the cache, skipping\n",
type_rec.type_string);
}
return false;
}
iret = true;
for (i = 0; i < msg_count; i++) {
c_name = ldb_msg_find_attr_as_string(msgs[i], SYSDB_NAME, NULL);
if (c_name == NULL) {
DEBUG(SSSDBG_MINOR_FAILURE,
("Something bad happened, can't find attribute %s", SYSDB_NAME));
ERROR("Couldn't invalidate %1$s", type_rec.type_string);
iret = false;
} else {
ret = invalidate_entry(ctx, sysdb, c_name, entry_type);
if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE,
("Couldn't invalidate %s %s", type_rec.type_string, c_name));
ERROR("Couldn't invalidate %1$s %2$s", type_rec.type_string, c_name);
iret = false;
}
}
}
talloc_zfree(msgs);
return iret;
}
errno_t invalidate_entry(TALLOC_CTX *ctx, struct sysdb_ctx *sysdb,
const char *name, int entry_type)
{
struct sysdb_attrs *sys_attrs = NULL;
errno_t ret;
sys_attrs = sysdb_new_attrs(ctx);
if (sys_attrs) {
ret = sysdb_attrs_add_time_t(sys_attrs,
SYSDB_CACHE_EXPIRE, 1);
if (ret == EOK) {
switch (entry_type) {
case TYPE_USER:
ret = sysdb_set_user_attr(sysdb, name, sys_attrs,
SYSDB_MOD_REP);
break;
case TYPE_GROUP:
ret = sysdb_set_group_attr(sysdb, name, sys_attrs,
SYSDB_MOD_REP);
break;
case TYPE_NETGROUP:
ret = sysdb_set_netgroup_attr(sysdb, name,
sys_attrs, SYSDB_MOD_REP);
break;
case TYPE_SERVICE:
ret = sysdb_set_service_attr(sysdb, name,
sys_attrs, SYSDB_MOD_REP);
break;
case TYPE_AUTOFSMAP:
ret = sysdb_set_autofsmap_attr(sysdb, name,
sys_attrs, SYSDB_MOD_REP);
break;
default:
return EINVAL;
}
if (ret != EOK) {
DEBUG(3, ("Could not set entry attributes\n"));
}
} else {
DEBUG(3, ("Could not add expiration time to attributes\n"));
}
talloc_zfree(sys_attrs);
} else {
DEBUG(3, ("Could not create sysdb attributes\n"));
ret = ENOMEM;
}
return ret;
}
errno_t init_domains(struct cache_tool_ctx *ctx, const char *domain)
{
char *confdb_path;
int ret;
struct sysdb_ctx *db_ctx = NULL;
confdb_path = talloc_asprintf(ctx, "%s/%s", DB_PATH, CONFDB_FILE);
if (confdb_path == NULL) {
return ENOMEM;
}
/* Connect to the conf db */
ret = confdb_init(ctx, &ctx->confdb, confdb_path);
talloc_free(confdb_path);
if (ret != EOK) {
DEBUG(1, ("Could not initialize connection to the confdb\n"));
return ret;
}
if (domain) {
ret = sysdb_init_domain_and_sysdb(ctx, ctx->confdb, domain, DB_PATH,
&ctx->domains, &db_ctx);
if (ret != EOK) {
DEBUG(1, ("Could not initialize connection to the sysdb\n"));
goto fail;
}
ret = sysdb_list_init(ctx, DB_PATH, db_ctx, &ctx->sysdb_list);
if (ret != EOK) {
DEBUG(1, ("Could not initialize the list of connections\n"));
goto fail;
}
} else {
ret = sysdb_init(ctx, ctx->confdb, NULL, false, &ctx->sysdb_list);
if (ret != EOK) {
DEBUG(1, ("Could not initialize connection to the sysdb\n"));
goto fail;
}
}
return EOK;
fail:
if (ctx->confdb) talloc_zfree(ctx->confdb);
if (ctx->domains) talloc_zfree(ctx->domains);
if (ctx->sysdb_list) {
talloc_zfree(ctx->sysdb_list);
} else {
if (db_ctx) talloc_free(db_ctx);
}
return ret;
}
errno_t init_context(int argc, const char *argv[], struct cache_tool_ctx **tctx)
{
struct cache_tool_ctx *ctx = NULL;
int idb = INVALIDATE_NONE;
char *user = NULL;
char *group = NULL;
char *netgroup = NULL;
char *service = NULL;
char *map = NULL;
char *domain = NULL;
int debug = SSSDBG_DEFAULT;
errno_t ret = EOK;
poptContext pc = NULL;
struct poptOption long_options[] = {
POPT_AUTOHELP
{ "debug", '\0', POPT_ARG_INT | POPT_ARGFLAG_DOC_HIDDEN, &debug,
0, _("The debug level to run with"), NULL },
{ "user", 'u', POPT_ARG_STRING, &user, 0,
_("Invalidate particular user"), NULL },
{ "users", 'U', POPT_ARG_NONE, NULL, 'u',
_("Invalidate all users"), NULL },
{ "group", 'g', POPT_ARG_STRING, &group, 0,
_("Invalidate particular group"), NULL },
{ "groups", 'G', POPT_ARG_NONE, NULL, 'g',
_("Invalidate all groups"), NULL },
{ "netgroup", 'n', POPT_ARG_STRING, &netgroup, 0,
_("Invalidate particular netgroup"), NULL },
{ "netgroups", 'N', POPT_ARG_NONE, NULL, 'n',
_("Invalidate all netgroups"), NULL },
{ "service", 's', POPT_ARG_STRING, &service, 0,
_("Invalidate particular service"), NULL },
{ "services", 'S', POPT_ARG_NONE, NULL, 's',
_("Invalidate all services"), NULL },
#ifdef BUILD_AUTOFS
{ "autofs-map", 'a', POPT_ARG_STRING, &map, 0,
_("Invalidate particular autofs map"), NULL },
{ "autofs-maps", 'A', POPT_ARG_NONE, NULL, 'a',
_("Invalidate all autofs maps"), NULL },
#endif /* BUILD_AUTOFS */
{ "domain", 'd', POPT_ARG_STRING, &domain, 0,
_("Only invalidate entries from a particular domain"), NULL },
POPT_TABLEEND
};
ret = set_locale();
if (ret != EOK) {
DEBUG(1, ("set_locale failed (%d): %s\n", ret, strerror(ret)));
ERROR("Error setting the locale\n");
goto fini;
}
pc = poptGetContext(NULL, argc, argv, long_options, 0);
while ((ret = poptGetNextOpt(pc)) > 0) {
switch (ret) {
case 'u':
idb |= INVALIDATE_USERS;
break;
case 'g':
idb |= INVALIDATE_GROUPS;
break;
case 'n':
idb |= INVALIDATE_NETGROUPS;
break;
case 's':
idb |= INVALIDATE_SERVICES;
break;
case 'a':
idb |= INVALIDATE_AUTOFSMAPS;
break;
}
}
if (ret != -1) {
BAD_POPT_PARAMS(pc, poptStrerror(ret), ret, fini);
}
if (idb == INVALIDATE_NONE && !user && !group &&
!netgroup && !service && !map) {
BAD_POPT_PARAMS(pc,
_("Please select at least one object to invalidate\n"),
ret, fini);
}
debug_level = debug_convert_old_level(debug);
debug_prg_name = argv[0];
CHECK_ROOT(ret, debug_prg_name);
ctx = talloc_zero(NULL, struct cache_tool_ctx);
if (ctx == NULL) {
DEBUG(1, ("Could not allocate memory for tools context\n"));
ret = ENOMEM;
goto fini;
}
if (idb & INVALIDATE_USERS) {
ctx->user_filter = talloc_asprintf(ctx, "(%s=*)", SYSDB_NAME);
} else if (user) {
ctx->user_filter = talloc_asprintf(ctx, "(%s=%s)", SYSDB_NAME, user);
ctx->user_name = talloc_strdup(ctx, user);
}
if (idb & INVALIDATE_GROUPS) {
ctx->group_filter = talloc_asprintf(ctx, "(%s=*)", SYSDB_NAME);
} else if (group) {
ctx->group_filter = talloc_asprintf(ctx, "(%s=%s)", SYSDB_NAME, group);
ctx->group_name = talloc_strdup(ctx, group);
}
if (idb & INVALIDATE_NETGROUPS) {
ctx->netgroup_filter = talloc_asprintf(ctx, "(%s=*)", SYSDB_NAME);
} else if (netgroup) {
ctx->netgroup_filter = talloc_asprintf(ctx, "(%s=%s)", SYSDB_NAME,
netgroup);
ctx->netgroup_name = talloc_strdup(ctx, netgroup);
}
if (idb & INVALIDATE_SERVICES) {
ctx->service_filter = talloc_strdup(ctx, "*");
} else if (service) {
ctx->service_filter = talloc_strdup(ctx, service);
ctx->service_name = talloc_strdup(ctx, service);
}
if (idb & INVALIDATE_AUTOFSMAPS) {
ctx->autofs_filter = talloc_asprintf(ctx, "(&(objectclass=%s)(%s=*))",
SYSDB_AUTOFS_MAP_OC, SYSDB_NAME);
} else if (map) {
ctx->autofs_filter = talloc_asprintf(ctx, "(&(objectclass=%s)(%s=%s))",
SYSDB_AUTOFS_MAP_OC,
SYSDB_NAME, map);
ctx->autofs_name = talloc_strdup(ctx, map);
}
if (((idb & INVALIDATE_USERS || user) && !ctx->user_filter) ||
((idb & INVALIDATE_GROUPS || group) && !ctx->group_filter) ||
((idb & INVALIDATE_NETGROUPS || netgroup) && !ctx->netgroup_filter) ||
((idb & INVALIDATE_SERVICES || service) && !ctx->service_filter) ||
((idb & INVALIDATE_AUTOFSMAPS || map) && !ctx->autofs_filter) ||
(user && !ctx->user_name) || (group && !ctx->group_name) ||
(netgroup && !ctx->netgroup_name) || (map && !ctx->autofs_name) ||
(service && !ctx->service_name)) {
DEBUG(1, ("Construction of filters failed\n"));
ret = ENOMEM;
goto fini;
}
ret = init_domains(ctx, domain);
if (ret != EOK) {
if (domain) {
ERROR("Could not open domain %1$s\n", domain);
} else {
ERROR("Could not open available domains\n");
}
DEBUG(SSSDBG_OP_FAILURE,
("Initialization of sysdb connections failed\n"));
goto fini;
}
ret = EOK;
fini:
poptFreeContext(pc);
free(user);
free(group);
free(netgroup);
free(domain);
if (ret != EOK && ctx) {
talloc_zfree(ctx);
}
if (ret == EOK) {
*tctx = ctx;
}
return ret;
}
static errno_t
search_services(TALLOC_CTX *mem_ctx, struct sysdb_ctx *sysdb,
const char *sub_filter, const char **attrs,
size_t *msgs_count, struct ldb_message ***msgs)
{
errno_t ret;
struct ldb_result *res;
if (strcmp(sub_filter, "*") == 0) {
/* All services */
ret = sysdb_enumservent(mem_ctx, sysdb, &res);
} else {
/* Get service by name */
ret = sysdb_getservbyname(mem_ctx, sysdb, sub_filter,
NULL, &res);
}
if (ret != EOK) {
DEBUG(SSSDBG_OP_FAILURE, ("Could not get service from sysdb: "
"[%d]: %s\n", ret, strerror(ret)));
return ret;
}
*msgs_count = res->count;
*msgs = res->msgs;
return EOK;
}
static errno_t
search_autofsmaps(TALLOC_CTX *mem_ctx, struct sysdb_ctx *sysdb,
const char *sub_filter, const char **attrs,
size_t *msgs_count, struct ldb_message ***msgs)
{
#ifdef BUILD_AUTOFS
return sysdb_search_custom(mem_ctx, sysdb, sub_filter,
AUTOFS_MAP_SUBDIR, attrs,
msgs_count, msgs);
#else
return ENOSYS;
#endif /* BUILD_AUTOFS */
}
|