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/** BEGIN COPYRIGHT BLOCK
* 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/>.
*
* Additional permission under GPLv3 section 7:
*
* In the following paragraph, "GPL" means the GNU General Public
* License, version 3 or any later version, and "Non-GPL Code" means
* code that is governed neither by the GPL nor a license
* compatible with the GPL.
*
* You may link the code of this Program with Non-GPL Code and convey
* linked combinations including the two, provided that such Non-GPL
* Code only links to the code of this Program through those well
* defined interfaces identified in the file named EXCEPTION found in
* the source code files (the "Approved Interfaces"). The files of
* Non-GPL Code may instantiate templates or use macros or inline
* functions from the Approved Interfaces without causing the resulting
* work to be covered by the GPL. Only the copyright holders of this
* Program may make changes or additions to the list of Approved
* Interfaces.
*
* Authors:
* Sumit Bose <sbose@redhat.com>
*
* Copyright (C) 2012 Red Hat, Inc.
* All rights reserved.
* END COPYRIGHT BLOCK **/
#include <stdlib.h>
#include <errno.h>
#include <stdbool.h>
#include <dirsrv/slapi-plugin.h>
#include "util.h"
#include "ipa_sidgen.h"
Slapi_PluginDesc ipa_sidgen_plugin_desc = {
IPA_SIDGEN_FEATURE_DESC,
"FreeIPA project",
"FreeIPA/1.0",
IPA_SIDGEN_PLUGIN_DESC
};
static int ipa_sidgen_start(Slapi_PBlock *pb)
{
return 0;
}
static int ipa_sidgen_close(Slapi_PBlock *pb)
{
int ret;
struct ipa_sidgen_ctx *ctx;
ret = slapi_pblock_get(pb, SLAPI_PLUGIN_PRIVATE, &ctx);
if (ret == 0) {
free_ranges(&ctx->ranges);
slapi_ch_free_string(&ctx->dom_sid);
} else {
LOG_FATAL("Missing private plugin context.\n");
}
return 0;
}
static int ipa_sidgen_add_post_op(Slapi_PBlock *pb)
{
int ret;
int is_repl_op;
struct slapi_entry *entry = NULL;
const char *dn_str;
Slapi_DN *dn = NULL;
struct ipa_sidgen_ctx *ctx;
Slapi_PBlock *search_pb = NULL;
char *errmsg = NULL;
ret = slapi_pblock_get(pb, SLAPI_IS_REPLICATED_OPERATION, &is_repl_op);
if (ret != 0) {
LOG_FATAL("slapi_pblock_get failed!?\n");
return LDAP_OPERATIONS_ERROR;
}
if (is_repl_op) {
LOG("Is replicated operation, nothing to do.\n");
return LDAP_SUCCESS;
}
ret = slapi_pblock_get(pb, SLAPI_PLUGIN_PRIVATE, &ctx);
if (ret != 0) {
LOG_FATAL("Missing private plugin context.\n");
goto done;
}
if (ctx->dom_sid == NULL) {
ret = get_dom_sid(ctx->plugin_id, ctx->base_dn, &ctx->dom_sid);
if (ret != 0) {
LOG_FATAL("Domain SID not available, nothing to do.\n");
ret = 0;
goto done;
}
}
ret = slapi_pblock_get(pb, SLAPI_TARGET_DN, &dn_str);
if (ret != 0) {
LOG_FATAL("Missing target DN.\n");
goto done;
}
dn = slapi_sdn_new_dn_byref(dn_str);
if (dn == NULL) {
LOG_FATAL("Failed to convert target DN.\n");
ret = LDAP_OPERATIONS_ERROR;
goto done;
}
ret = slapi_search_internal_get_entry(dn, NULL, &entry, ctx->plugin_id);
if (ret != 0 || entry == NULL) {
LOG_FATAL("Missing target entry.\n");
ret = LDAP_NO_SUCH_OBJECT;
goto done;
}
if (ctx->ranges == NULL) {
ret = get_ranges(ctx->plugin_id, ctx->base_dn, &ctx->ranges);
if (ret != 0) {
if (ret == LDAP_NO_SUCH_OBJECT) {
ret = 0;
LOG("No ID ranges found, nothing to do.\n");
} else {
LOG_FATAL("Failed to get ID ranges.\n");
}
goto done;
}
}
ret = find_sid_for_ldap_entry(entry, ctx->plugin_id, ctx->base_dn,
ctx->dom_sid, ctx->ranges);
if (ret != 0) {
LOG_FATAL("Cannot add SID to new entry.\n");
goto done;
}
ret = 0;
done:
slapi_free_search_results_internal(search_pb);
slapi_pblock_destroy(search_pb);
slapi_sdn_free(&dn);
if (ret != 0) {
if (errmsg == NULL) {
errmsg = "SIDGEN error";
}
slapi_send_ldap_result(pb, ret, NULL, errmsg, 0, NULL);
}
return ret;
}
static int ipa_sidgen_init_ctx(Slapi_PBlock *pb, struct ipa_sidgen_ctx **_ctx)
{
struct ipa_sidgen_ctx *ctx;
Slapi_Entry *entry;
int ret;
ctx = calloc(1, sizeof(struct ipa_sidgen_ctx));
if (ctx == NULL) {
return LDAP_OPERATIONS_ERROR;
}
ret = slapi_pblock_get(pb, SLAPI_PLUGIN_IDENTITY, &ctx->plugin_id);
if ((ret != 0) || (ctx->plugin_id == NULL)) {
LOG_FATAL("Could not get identity or identity was NULL\n");
if (ret == 0) {
ret = -1;
}
goto done;
}
slapi_pblock_get(pb, SLAPI_PLUGIN_CONFIG_ENTRY, &entry);
if (entry == NULL) {
LOG_FATAL("Plugin configuration not found!\n");
ret = EINVAL;
goto done;
}
ctx->base_dn = slapi_entry_attr_get_charptr(entry, "nsslapd-basedn");
if (ctx->base_dn == NULL) {
LOG_FATAL("Base DN not found in plugin configuration!\n");
ret = EINVAL;
goto done;
}
ret = 0;
done:
if (ret != 0) {
free(ctx);
} else {
*_ctx = ctx;
}
return ret;
}
int ipa_sidgen_init(Slapi_PBlock *pb)
{
int ret;
struct ipa_sidgen_ctx *ctx;
ret = ipa_sidgen_init_ctx(pb, &ctx);
if (ret != 0) {
LOG_FATAL("Failed ot initialize sidgen postop plugin.\n");
/* do not cause DS to stop, simply do nothing */
return 0;
}
ret = 0;
if (slapi_pblock_set(pb, SLAPI_PLUGIN_VERSION,
SLAPI_PLUGIN_VERSION_03) != 0 ||
slapi_pblock_set(pb, SLAPI_PLUGIN_START_FN,
(void *) ipa_sidgen_start) != 0 ||
slapi_pblock_set(pb, SLAPI_PLUGIN_CLOSE_FN,
(void *) ipa_sidgen_close) != 0 ||
slapi_pblock_set(pb, SLAPI_PLUGIN_DESCRIPTION,
(void *) &ipa_sidgen_plugin_desc) != 0 ||
slapi_pblock_set(pb, SLAPI_PLUGIN_POST_ADD_FN,
(void *) ipa_sidgen_add_post_op) != 0 ||
slapi_pblock_set(pb, SLAPI_PLUGIN_PRIVATE, ctx) != 0) {
LOG_FATAL("failed to register plugin\n");
ret = EFAIL;
}
return ret;
}
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