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Add sidgen postop and task

Browse Source 
A postop plugin is added to create the SID for new created users and
groups. A directory server task allows to set the SID for existing
users and groups.

Fixes https://fedorahosted.org/freeipa/ticket/2825
This commit is contained in:
Sumit Bose 2012-06-21 12:54:34 +02:00 committed by Martin Kosek
parent 63567479df
commit 65ad261663
12 changed files with 1390 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
daemons/configure.ac
View File

@ -314,6 +314,7 @@ AC_CONFIG_FILES([
ipa-slapi-plugins/ipa-version/Makefile
ipa-slapi-plugins/ipa-uuid/Makefile
ipa-slapi-plugins/ipa-modrdn/Makefile
ipa-slapi-plugins/ipa-sidgen/Makefile
])
AC_OUTPUT

1
daemons/ipa-slapi-plugins/Makefile.am
View File

@ -9,6 +9,7 @@ SUBDIRS = \
ipa-uuid \
ipa-version \
ipa-winsync \
ipa-sidgen \
$(NULL)
EXTRA_DIST = \

60
daemons/ipa-slapi-plugins/ipa-sidgen/Makefile.am Normal file
View File

@ -0,0 +1,60 @@
NULL =
PLUGIN_COMMON_DIR=../common
INCLUDES = \
-I. \
-I$(srcdir) \
-I$(PLUGIN_COMMON_DIR) \
-I/usr/include/dirsrv \
-DPREFIX=\""$(prefix)"\" \
-DBINDIR=\""$(bindir)"\" \
-DLIBDIR=\""$(libdir)"\" \
-DLIBEXECDIR=\""$(libexecdir)"\" \
-DDATADIR=\""$(datadir)"\" \
$(AM_CFLAGS) \
$(LDAP_CFLAGS) \
$(WARN_CFLAGS) \
$(NULL)
plugindir = $(libdir)/dirsrv/plugins
plugin_LTLIBRARIES = \
libipa_sidgen.la \
libipa_sidgen_task.la \
$(NULL)
libipa_sidgen_la_SOURCES = \
ipa_sidgen.c \
ipa_sidgen_common.c \
$(NULL)
libipa_sidgen_la_LDFLAGS = -avoid-version
libipa_sidgen_la_LIBADD = \
$(LDAP_LIBS) \
$(NULL)
libipa_sidgen_task_la_SOURCES = \
ipa_sidgen_task.c \
ipa_sidgen_common.c \
$(NULL)
libipa_sidgen_task_la_LDFLAGS = -avoid-version
libipa_sidgen_task_la_LIBADD = \
$(LDAP_LIBS) \
$(NULL)
appdir = $(IPA_DATA_DIR)
app_DATA = \
ipa-sidgen-conf.ldif \
ipa-sidgen-task-conf.ldif \
$(NULL)
EXTRA_DIST = \
$(app_DATA) \
$(NULL)
MAINTAINERCLEANFILES = \
*~ \
Makefile.in

16
daemons/ipa-slapi-plugins/ipa-sidgen/ipa-sidgen-conf.ldif Normal file
View File

@ -0,0 +1,16 @@
dn: cn=IPA SIDGEN,cn=plugins,cn=config
changetype: add
objectclass: top
objectclass: nsSlapdPlugin
objectclass: extensibleObject
cn: IPA SIDGEN
nsslapd-pluginpath: libipa_sidgen
nsslapd-plugininitfunc: ipa_sidgen_init
nsslapd-plugintype: postoperation
nsslapd-pluginenabled: on
nsslapd-pluginid: ipa_sidgen_postop
nsslapd-pluginversion: 1.0
nsslapd-pluginvendor: Red Hat, Inc.
nsslapd-plugindescription: IPA SIDGEN post operation
nsslapd-plugin-depends-on-type: database
nsslapd-basedn: $SUFFIX

20
daemons/ipa-slapi-plugins/ipa-sidgen/ipa-sidgen-task-conf.ldif Normal file
View File

@ -0,0 +1,20 @@
dn: cn=ipa-sidgen-task,cn=plugins,cn=config
changetype: add
objectClass: top
objectClass: nsSlapdPlugin
objectClass: extensibleObject
cn: ipa-sidgen-task
nsslapd-pluginPath: libipa_sidgen_task
nsslapd-pluginInitfunc: sidgen_task_init
nsslapd-pluginType: object
nsslapd-pluginEnabled: on
nsslapd-pluginId: ipa_sidgen_task
nsslapd-pluginVersion: 1.0
nsslapd-pluginVendor: RedHat
nsslapd-pluginDescription: Generate SIDs for existing user and group entries
dn: cn=ipa-sidgen-task,cn=tasks,cn=config
changetype: add
objectClass: top
objectClass: extensibleObject
cn: ipa-sidgen-task

10
daemons/ipa-slapi-plugins/ipa-sidgen/ipa-sidgen-task-example.ldif Normal file
View File

@ -0,0 +1,10 @@
dn: cn=sidgen,cn=ipa-sidgen-task,cn=plugins,cn=config
changetype: add
objectClass: top
objectClass: nsSlapdPlugin
objectClass: extensibleObject
cn: ipa-sidgen-task
nsslapd-pluginPath: libipa_sidgen_task
nsslapd-pluginInitfunc: sidgen_task_init
nsslapd-basedn: $SUFFIX
delay: 0

244
daemons/ipa-slapi-plugins/ipa-sidgen/ipa_sidgen.c Normal file
View File

@ -0,0 +1,244 @@
/** 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;
}

110
daemons/ipa-slapi-plugins/ipa-sidgen/ipa_sidgen.h Normal file
View File

@ -0,0 +1,110 @@
/** 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 **/
#ifndef _IPA_SIDGEN_H_
#define _IPA_SIDGEN_H_
#define OBJECTCLASS "objectclass"
#define IPA_OBJECT "ipaobject"
#define MEP_MANAGED_ENTRY "mepManagedEntry"
#define UID_NUMBER "uidNumber"
#define GID_NUMBER "gidNumber"
#define IPA_SID "ipaNTSecurityIdentifier"
#define DOM_ATTRS_FILTER OBJECTCLASS"=ipaNTDomainAttrs"
#define DOMAIN_ID_RANGE_FILTER OBJECTCLASS"=ipaDomainIDRange"
#define POSIX_ACCOUNT "posixAccount"
#define POSIX_GROUP "posixGroup"
#define IPA_ID_OBJECT "ipaIDObject"
#define IPANT_USER_ATTRS "ipaNTUserAttrs"
#define IPANT_GROUP_ATTRS "ipaNTGroupAttrs"
#define IPA_DNA_MAGIC 999
#define IPA_PLUGIN_NAME "ipa-sidgen-postop"
#define IPA_SIDGEN_FEATURE_DESC "IPA SIDGEN postop plugin"
#define IPA_SIDGEN_PLUGIN_DESC "Add a SID to newly added or modified " \
"objects with uid pr gid numbers"
#define IPA_BASE_ID "ipaBaseID"
#define IPA_ID_RANGE_SIZE "ipaIDRangeSize"
#define IPA_BASE_RID "ipaBaseRID"
#define IPA_SECONDARY_BASE_RID "ipaSecondaryBaseRID"
struct range_info {
uint32_t base_id;
uint32_t id_range_size;
uint32_t base_rid;
uint32_t secondary_base_rid;
};
struct ipa_sidgen_ctx {
Slapi_ComponentId *plugin_id;
const char *base_dn;
char *dom_sid;
struct range_info **ranges;
};
void set_plugin_id_for_sidgen_task(Slapi_ComponentId *plugin_id);
int sidgen_task_add(Slapi_PBlock *pb, Slapi_Entry *e,
Slapi_Entry *eAfter, int *returncode,
char *returntext, void *arg);
int get_dom_sid(Slapi_ComponentId *plugin_id, const char *base_dn, char **_sid);
int get_objectclass_flags(char **objectclasses,
bool *has_posix_account,
bool *has_posix_group,
bool *has_ipa_id_object);
void free_ranges(struct range_info ***_ranges);
int get_ranges(Slapi_ComponentId *plugin_id, const char *base_dn,
struct range_info ***_ranges);
int find_sid_for_id(uint32_t id, Slapi_ComponentId *plugin_id,
const char *base_dn, const char *dom_sid,
struct range_info **ranges, char **_sid);
int find_sid_for_ldap_entry(struct slapi_entry *entry,
Slapi_ComponentId *plugin_id,
const char *base_dn,
const char *dom_sid,
struct range_info **ranges);
#endif /* _IPA_SIDGEN_H_ */

568
daemons/ipa-slapi-plugins/ipa-sidgen/ipa_sidgen_common.c Normal file
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@ -0,0 +1,568 @@
/** 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"
int get_dom_sid(Slapi_ComponentId *plugin_id, const char *base_dn, char **_sid)
{
Slapi_PBlock *search_pb = NULL;
int search_result;
Slapi_Entry **search_entries = NULL;
int ret;
const char *sid;
search_pb = slapi_pblock_new();
if (search_pb == NULL) {
LOG_FATAL("Failed to create new pblock.\n");
ret = LDAP_OPERATIONS_ERROR;
goto done;
}
slapi_search_internal_set_pb(search_pb, base_dn,
LDAP_SCOPE_SUBTREE, DOM_ATTRS_FILTER,
NULL, 0, NULL, NULL, plugin_id, 0);
ret = slapi_search_internal_pb(search_pb);
if (ret != 0) {
LOG_FATAL("Starting internal search failed.\n");
goto done;
}
ret = slapi_pblock_get(search_pb, SLAPI_PLUGIN_INTOP_RESULT, &search_result);
if (ret != 0 || search_result != LDAP_SUCCESS) {
LOG_FATAL("Internal search failed.\n");
ret = LDAP_OPERATIONS_ERROR;
goto done;
}
ret = slapi_pblock_get(search_pb, SLAPI_PLUGIN_INTOP_SEARCH_ENTRIES,
&search_entries);
if (ret != 0) {
LOG_FATAL("Failed to read searched entries.\n");
goto done;
}
if (search_entries == NULL || search_entries[0] == NULL) {
LOG("No existing entries.\n");
ret = LDAP_NO_SUCH_OBJECT;
goto done;
}
if (search_entries[1] != NULL) {
LOG("Too many results found.\n");
ret = LDAP_OPERATIONS_ERROR;
goto done;
}
sid = slapi_entry_attr_get_charptr(search_entries[0], IPA_SID);
if (sid == NULL) {
LOG("Domain object does not have a SID.\n");
ret = LDAP_NO_SUCH_ATTRIBUTE;
goto done;
}
*_sid = slapi_ch_strdup(sid);
if (*_sid == NULL) {
LOG("slapi_ch_strdup failed.\n");
ret = LDAP_OPERATIONS_ERROR;
goto done;
}
LOG("Found domain SID [%s].\n", *_sid);
ret = 0;
done:
slapi_free_search_results_internal(search_pb);
slapi_pblock_destroy(search_pb);
return ret;
}
static int slapi_entry_to_range_info(struct slapi_entry *entry,
struct range_info **_range)
{
int ret;
unsigned long ul_val;
struct range_info *range = NULL;
range = ( struct range_info *) slapi_ch_calloc(1, sizeof(struct range_info));
if (range == NULL) {
return LDAP_OPERATIONS_ERROR;
}
ul_val = slapi_entry_attr_get_ulong(entry, IPA_BASE_ID);
if (ul_val == 0 || ul_val >= UINT32_MAX) {
ret = LDAP_OPERATIONS_ERROR;
goto done;
}
range->base_id = ul_val;
ul_val = slapi_entry_attr_get_ulong(entry, IPA_ID_RANGE_SIZE);
if (ul_val == 0 || ul_val >= UINT32_MAX) {
ret = LDAP_OPERATIONS_ERROR;
goto done;
}
range->id_range_size = ul_val;
ul_val = slapi_entry_attr_get_ulong(entry, IPA_BASE_RID);
if (ul_val == 0 || ul_val >= UINT32_MAX) {
ret = LDAP_OPERATIONS_ERROR;
goto done;
}
range->base_rid = ul_val;
ul_val = slapi_entry_attr_get_ulong(entry, IPA_SECONDARY_BASE_RID);
if (ul_val == 0 || ul_val >= UINT32_MAX) {
ret = ERANGE;
goto done;
}
range->secondary_base_rid = ul_val;
*_range = range;
ret = 0;
done:
if (ret != 0) {
slapi_ch_free((void **) &range);
}
return ret;
}
int get_objectclass_flags(char **objectclasses,
bool *has_posix_account,
bool *has_posix_group,
bool *has_ipa_id_object)
{
size_t c;
if (objectclasses == NULL) {
return LDAP_OPERATIONS_ERROR;
}
*has_posix_account = false;
*has_posix_group = false;
*has_ipa_id_object = false;
for (c = 0; objectclasses[c] != NULL; c++) {
if (strcasecmp(objectclasses[c], POSIX_ACCOUNT) == 0) {
*has_posix_account = true;
} else if (strcasecmp(objectclasses[c], POSIX_GROUP) == 0) {
*has_posix_group = true;
} else if (strcasecmp(objectclasses[c], IPA_ID_OBJECT) == 0) {
*has_ipa_id_object = true;
}
}
return 0;
}
void free_ranges(struct range_info ***_ranges)
{
size_t c;
struct range_info **ranges = *_ranges;
if (ranges != NULL) {
for (c = 0; ranges[c] != NULL; c++) {
slapi_ch_free((void **) &ranges[c]);
}
slapi_ch_free((void **) _ranges);
}
}
int get_ranges(Slapi_ComponentId *plugin_id, const char *base_dn,
struct range_info ***_ranges)
{
Slapi_PBlock *search_pb = NULL;
Slapi_Entry **search_entries = NULL;
int search_result;
size_t c;
int ret;
struct range_info **ranges = NULL;
search_pb = slapi_pblock_new();
if (search_pb == NULL) {
LOG_FATAL("Failed to create new pblock.\n");
ret = LDAP_OPERATIONS_ERROR;
goto done;
}
slapi_search_internal_set_pb(search_pb, base_dn,
LDAP_SCOPE_SUBTREE, DOMAIN_ID_RANGE_FILTER,
NULL, 0, NULL, NULL, plugin_id, 0);
ret = slapi_search_internal_pb(search_pb);
if (ret != 0) {
LOG_FATAL("Starting internal search failed.\n");
goto done;
}
ret = slapi_pblock_get(search_pb, SLAPI_PLUGIN_INTOP_RESULT, &search_result);
if (ret != 0 || search_result != LDAP_SUCCESS) {
LOG_FATAL("Internal search failed.\n");
ret = (search_result != LDAP_SUCCESS) ? search_result:
LDAP_OPERATIONS_ERROR;
goto done;
}
ret = slapi_pblock_get(search_pb, SLAPI_PLUGIN_INTOP_SEARCH_ENTRIES,
&search_entries);
if (ret != 0) {
LOG_FATAL("Failed to read searched entries.\n");
goto done;
}
if (search_entries == NULL || search_entries[0] == NULL) {
LOG("No ranges found.\n");
ret = LDAP_NO_SUCH_OBJECT;
goto done;
}
for (c = 0; search_entries[c] != NULL; c++);
ranges = (struct range_info **) slapi_ch_calloc(c + 1,
sizeof(struct range_info *));
if (ranges == NULL) {
LOG("calloc failed.\n");
ret = LDAP_OPERATIONS_ERROR;
goto done;
}
for (c = 0; search_entries[c] != NULL; c++) {
ret = slapi_entry_to_range_info(search_entries[c], &ranges[c]);
if (ret != 0) {
LOG_FATAL("Failed to convert LDAP entry to range struct.\n");
goto done;
}
}
*_ranges = ranges;
ret = 0;
done:
slapi_free_search_results_internal(search_pb);
slapi_pblock_destroy(search_pb);
if (ret != 0) {
free_ranges(&ranges);
}
return ret;
}
static int find_sid(const char *sid, Slapi_ComponentId *plugin_id,
const char *base_dn)
{
Slapi_PBlock *search_pb = NULL;
Slapi_Entry **search_entries = NULL;
int search_result;
int ret;
char *filter = NULL;
search_pb = slapi_pblock_new();
if (search_pb == NULL) {
LOG_FATAL("Failed to create new pblock.\n");
ret = LDAP_OPERATIONS_ERROR;
goto done;
}
filter = slapi_ch_smprintf("%s=%s", IPA_SID, sid);
if (filter == NULL) {
LOG_FATAL("Cannot create search filter to check if SID is used.\n");
ret = LDAP_OPERATIONS_ERROR;
goto done;
}
slapi_search_internal_set_pb(search_pb, base_dn,
LDAP_SCOPE_SUBTREE, filter,
NULL, 0, NULL, NULL, plugin_id, 0);
ret = slapi_search_internal_pb(search_pb);
if (ret != 0) {
LOG_FATAL("Starting internal search failed.\n");
goto done;
}
ret = slapi_pblock_get(search_pb, SLAPI_PLUGIN_INTOP_RESULT, &search_result);
if (ret != 0 || search_result != LDAP_SUCCESS) {
LOG_FATAL("Internal search failed.\n");
ret = (search_result != LDAP_SUCCESS) ? search_result:
LDAP_OPERATIONS_ERROR;
goto done;
}
ret = slapi_pblock_get(search_pb, SLAPI_PLUGIN_INTOP_SEARCH_ENTRIES,
&search_entries);
if (ret != 0) {
LOG_FATAL("Failed to read searched entries.\n");
goto done;
}
if (search_entries == NULL || search_entries[0] == NULL) {
LOG("No SID found.\n");
ret = LDAP_NO_SUCH_OBJECT;
goto done;
}
ret = 0;
done:
slapi_ch_free_string(&filter);
slapi_free_search_results_internal(search_pb);
slapi_pblock_destroy(search_pb);
return ret;
}
static int rid_to_sid_with_check(uint32_t rid, Slapi_ComponentId *plugin_id,
const char *base_dn, const char *dom_sid,
char **_sid)
{
char *sid = NULL;
int ret;
sid = slapi_ch_smprintf("%s-%lu", dom_sid, (unsigned long) rid);
if (sid == NULL) {
LOG("Failed to create SID string.\n");
ret = LDAP_OPERATIONS_ERROR;
goto done;
}
LOG("SID is [%s].\n", sid);
ret = find_sid(sid, plugin_id, base_dn);
if (ret == LDAP_NO_SUCH_OBJECT) {
*_sid = sid;
ret = 0;
goto done;
} else if (ret != 0) {
LOG_FATAL("Cannot check if SID is already used.\n");
goto done;
}
LOG_FATAL("SID [%s] is already used.\n", sid);
ret = LDAP_CONSTRAINT_VIOLATION;
done:
if (ret != 0) {
slapi_ch_free_string(&sid);
}
return ret;
}
int find_sid_for_id(uint32_t id, Slapi_ComponentId *plugin_id,
const char *base_dn, const char *dom_sid,
struct range_info **ranges, char **_sid)
{
uint32_t rid;
size_t c;
char *sid = NULL;
int ret;
rid = 0;
for (c = 0; ranges[c] != NULL; c++) {
if (id >= ranges[c]->base_id &&
id < (ranges[c]->base_id + ranges[c]->id_range_size)) {
rid = ranges[c]->base_rid + (id - ranges[c]->base_id);
break;
}
}
if (rid == 0) {
LOG("No matching range found. Cannot add SID.\n");
ret = LDAP_NO_SUCH_OBJECT;
goto done;
}
ret = rid_to_sid_with_check(rid, plugin_id, base_dn, dom_sid, &sid);
if (ret != LDAP_CONSTRAINT_VIOLATION) {
goto done;
}
/* SID is already used, try secondary range.*/
rid = ranges[c]->secondary_base_rid + (id - ranges[c]->base_id);
ret = rid_to_sid_with_check(rid, plugin_id, base_dn, dom_sid, &sid);
if (ret != LDAP_CONSTRAINT_VIOLATION) {
goto done;
}
LOG_FATAL("Secondary SID is used as well.\n");
done:
if (ret != 0) {
slapi_ch_free_string(&sid);
} else {
*_sid = sid;
}
return ret;
}
int find_sid_for_ldap_entry(struct slapi_entry *entry,
Slapi_ComponentId *plugin_id,
const char *base_dn,
const char *dom_sid,
struct range_info **ranges)
{
int ret;
const char *dn_str;
uint32_t uid_number;
uint32_t gid_number;
uint32_t id;
char *sid = NULL;
char **objectclasses = NULL;
Slapi_PBlock *mod_pb = NULL;
Slapi_Mods *smods = NULL;
int result;
bool has_posix_account = false;
bool has_posix_group = false;
bool has_ipa_id_object = false;
const char *objectclass_to_add = NULL;
dn_str = slapi_entry_get_dn_const(entry);
if (dn_str == NULL) {
LOG_FATAL("Cannot find DN of an LDAP entry.\n");
ret = LDAP_NO_SUCH_ATTRIBUTE;
goto done;
}
LOG("Trying to add SID for [%s].\n", dn_str);
uid_number = slapi_entry_attr_get_ulong(entry, UID_NUMBER);
gid_number = slapi_entry_attr_get_ulong(entry, GID_NUMBER);
if (uid_number == 0 && gid_number == 0) {
LOG("[%s] does not have Posix IDs, nothing to do.\n", dn_str);
ret = 0;
goto done;
}
if (uid_number == IPA_DNA_MAGIC || gid_number == IPA_DNA_MAGIC) {
LOG_FATAL("Looks that DNA plugin was not run before.\n");
ret = LDAP_OPERATIONS_ERROR;
goto done;
}
if (uid_number >= UINT32_MAX || gid_number >= UINT32_MAX) {
LOG_FATAL("ID value too large.\n");
ret = LDAP_CONSTRAINT_VIOLATION;
goto done;
}
sid = slapi_entry_attr_get_charptr(entry, IPA_SID);
if (sid != NULL) {
LOG("Object already has a SID, nothing to do.\n");
ret = 0;
goto done;
}
objectclasses = slapi_entry_attr_get_charray(entry, OBJECTCLASS);
ret = get_objectclass_flags(objectclasses, &has_posix_account,
&has_posix_group,
&has_ipa_id_object);
if (ret != 0) {
LOG_FATAL("Cannot determine objectclasses.\n");
goto done;
}
if (has_posix_account && uid_number != 0 && gid_number != 0) {
id = uid_number;
objectclass_to_add = IPANT_USER_ATTRS;
} else if (has_posix_group && gid_number != 0) {
id = gid_number;
objectclass_to_add = IPANT_GROUP_ATTRS;
} else if (has_ipa_id_object) {
id = (uid_number != 0) ? uid_number : gid_number;
objectclass_to_add = NULL;
} else {
LOG_FATAL("Inconsistent objectclasses and attributes, nothing to do.\n");
ret = 0;
goto done;
}
ret = find_sid_for_id(id, plugin_id, base_dn, dom_sid, ranges, &sid);
if (ret != 0) {
LOG_FATAL("Cannot convert Posix ID [%ul] into an unused SID.\n", id);
goto done;
}
smods = slapi_mods_new();
if (smods == NULL) {
LOG("slapi_mods_new failed.\n");
ret = LDAP_OPERATIONS_ERROR;
goto done;
}
if (objectclass_to_add != NULL) {
slapi_mods_add_string(smods, LDAP_MOD_ADD,
OBJECTCLASS, objectclass_to_add);
}
slapi_mods_add_string(smods, LDAP_MOD_REPLACE, IPA_SID, sid);
mod_pb = slapi_pblock_new();
slapi_modify_internal_set_pb(mod_pb, dn_str,
slapi_mods_get_ldapmods_byref(smods),
NULL, NULL, plugin_id, 0);
ret = slapi_modify_internal_pb(mod_pb);
if (ret != 0) {
LOG_FATAL("Modify failed with [%d] on entry [%s]\n", ret, dn_str);
goto done;
}
ret = slapi_pblock_get(mod_pb, SLAPI_PLUGIN_INTOP_RESULT, &result);
if (ret != 0 || result != LDAP_SUCCESS){
LOG_FATAL("Modify failed on entry [%s]\n", dn_str);
goto done;
}
done:
slapi_ch_free_string(&sid);
slapi_pblock_destroy(mod_pb);
slapi_mods_free(&smods);
slapi_ch_array_free(objectclasses);
return ret;
}

348
daemons/ipa-slapi-plugins/ipa-sidgen/ipa_sidgen_task.c Normal file
View File

@ -0,0 +1,348 @@
/** 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 <errno.h>
#include <stdlib.h>
#include <stdbool.h>
#include <pthread.h>
#include <dirsrv/slapi-plugin.h>
#include "util.h"
#include "ipa_sidgen.h"
#define NSEC_PER_SEC 1000000000UL
#define AT_CN "cn"
Slapi_ComponentId *global_sidgen_plugin_id = NULL;
struct worker_ctx {
long delay;
char *base_dn;
Slapi_ComponentId *plugin_id;
pthread_t tid;
char *dom_sid;
struct range_info **ranges;
};
static const char *fetch_attr(Slapi_Entry *e, const char *attrname,
const char *default_val)
{
Slapi_Attr *attr;
Slapi_Value *val = NULL;
if (slapi_entry_attr_find(e, attrname, &attr) != 0)
return default_val;
slapi_attr_first_value(attr, &val);
return slapi_value_get_string(val);
}
static void free_pblock(void *arg)
{
Slapi_PBlock *pb = (Slapi_PBlock *) arg;
slapi_free_search_results_internal(pb);
slapi_pblock_destroy(pb);
}
static int do_work(struct worker_ctx *worker_ctx)
{
Slapi_PBlock *pb;
int ret;
size_t c;
char *filter = NULL;
char *attrs[] = { OBJECTCLASS, UID_NUMBER, GID_NUMBER, NULL };
Slapi_Entry **e = NULL;
struct timespec ts;
pb = slapi_pblock_new();
if (pb == NULL) {
return ENOMEM;
}
pthread_cleanup_push(free_pblock, (void *) pb);
filter = slapi_ch_smprintf("(&(%s=%s)(!(%s=%s))(|(%s=%s)(%s=%s)(%s=%s))(!(%s=*)))",
OBJECTCLASS, IPA_OBJECT,
OBJECTCLASS, MEP_MANAGED_ENTRY,
OBJECTCLASS, POSIX_ACCOUNT,
OBJECTCLASS, POSIX_GROUP,
OBJECTCLASS, IPA_ID_OBJECT,
IPA_SID);
if (filter == NULL) {
LOG_FATAL("Cannot generate search filter for objects without a SID.\n");
ret = ENOMEM;
goto done;
}
LOG("Base DN: [%s], Filter: [%s].\n", worker_ctx->base_dn, filter);
slapi_search_internal_set_pb(pb, worker_ctx->base_dn, LDAP_SCOPE_SUBTREE,
filter, attrs, 0, NULL, NULL,
worker_ctx->plugin_id, 0);
ret = slapi_search_internal_pb(pb);
if (ret != 0) {
slapi_pblock_get(pb, SLAPI_PLUGIN_INTOP_RESULT, &ret);
if (ret != 0) {
LOG_FATAL("Search failed with [%d].\n", ret);
} else {
LOG_FATAL("slapi_search_internal_pb failed, "
"but no error code available.\n");
ret = EFAULT;
}
goto done;
}
ret = slapi_pblock_get(pb, SLAPI_PLUGIN_INTOP_SEARCH_ENTRIES, &e);
if (ret != 0) {
LOG_FATAL("slapi_pblock_get failed.\n");
ret = EFAULT;
goto done;
}
if (e == NULL || e[0] == NULL) {
LOG("No entry with missing SID found.\n");
ret = 0;
goto done;
}
for (c = 0; e[c] != NULL; c++) {
ret = find_sid_for_ldap_entry(e[c], worker_ctx->plugin_id,
worker_ctx->base_dn, worker_ctx->dom_sid,
worker_ctx->ranges);
if (ret != 0) {
LOG_FATAL("Cannot add SID to existing entry.\n");
goto done;
}
if (worker_ctx->delay != 0) {
ts.tv_nsec = worker_ctx->delay % NSEC_PER_SEC;
ts.tv_sec = (worker_ctx->delay - ts.tv_nsec) / NSEC_PER_SEC;
nanosleep(&ts, NULL);
}
};
done:
slapi_ch_free_string(&filter);
pthread_cleanup_pop(1);
LOG("do_work finished with [%d].\n", ret);
return ret;
}
static void *sidgen_task_thread(void *arg)
{
Slapi_Task *task = (Slapi_Task *)arg;
struct worker_ctx *worker_ctx;
int ret;
if (task == NULL) {
LOG_FATAL("Missing task data!\n");
ret =SLAPI_DSE_CALLBACK_OK;
goto done;
}
worker_ctx = slapi_task_get_data(task);
if (worker_ctx == NULL) {
LOG_FATAL("Missing context!\n");
ret =SLAPI_DSE_CALLBACK_OK;
goto done;
}
slapi_task_begin(task, 1);
LOG_FATAL("Sidgen task starts ...\n");
ret = do_work(worker_ctx);
done:
LOG_FATAL("Sidgen task finished [%d].\n", ret);
slapi_task_inc_progress(task);
slapi_task_finish(task, ret);
return NULL;
}
static void sidgen_task_destructor(Slapi_Task *task)
{
struct worker_ctx *worker_ctx;
if (task != NULL) {
worker_ctx = slapi_task_get_data(task);
if (worker_ctx != NULL) {
free_ranges(&worker_ctx->ranges);
slapi_ch_free_string(&worker_ctx->dom_sid);
slapi_ch_free_string(&worker_ctx->base_dn);
slapi_ch_free((void **) &worker_ctx);
}
}
}
int sidgen_task_add(Slapi_PBlock *pb, Slapi_Entry *e,
Slapi_Entry *eAfter, int *returncode,
char *returntext, void *arg)
{
int ret = SLAPI_DSE_CALLBACK_ERROR;
const char *str;
struct worker_ctx *worker_ctx = NULL;
char *endptr;
Slapi_Task *task = NULL;
*returncode = LDAP_OPERATIONS_ERROR;
returntext[0] = '\0';
worker_ctx = (struct worker_ctx *) slapi_ch_calloc(1,
sizeof(struct worker_ctx));
if (worker_ctx == NULL) {
LOG_FATAL("slapi_ch_malloc failed!\n");
*returncode = LDAP_OPERATIONS_ERROR;
ret = SLAPI_DSE_CALLBACK_ERROR;
goto done;
}
worker_ctx->plugin_id = global_sidgen_plugin_id;
str = fetch_attr(e, "delay", NULL);
if (str != NULL) {
errno = 0;
worker_ctx->delay = strtol(str, &endptr, 10);
if (errno != 0 || worker_ctx->delay < 0) {
LOG_FATAL("invalid delay [%s]!\n", str);
*returncode = LDAP_CONSTRAINT_VIOLATION;
ret = SLAPI_DSE_CALLBACK_ERROR;
goto done;
}
}
LOG("delay is [%li].\n", worker_ctx->delay);
str = fetch_attr(e, "nsslapd-basedn", NULL);
if (str == NULL) {
LOG_FATAL("Missing nsslapd-basedn!\n");
*returncode = LDAP_CONSTRAINT_VIOLATION;
ret = SLAPI_DSE_CALLBACK_ERROR;
goto done;
}
worker_ctx->base_dn = slapi_ch_strdup(str);
if (worker_ctx->base_dn == NULL) {
LOG_FATAL("Failed to copy base DN.\n");
*returncode = LDAP_OPERATIONS_ERROR;
ret = ENOMEM;
goto done;
}
ret = get_dom_sid(worker_ctx->plugin_id, worker_ctx->base_dn,
&worker_ctx->dom_sid);
if (ret != 0) {
LOG_FATAL("Cannot find domain SID.\n");
goto done;
}
ret = get_ranges(worker_ctx->plugin_id, worker_ctx->base_dn,
&worker_ctx->ranges);
if (ret != 0) {
LOG_FATAL("Cannot find ranges.\n");
goto done;
}
task = slapi_new_task(slapi_entry_get_ndn(e));
if (task == NULL) {
LOG_FATAL("unable to allocate new task!\n");
*returncode = LDAP_OPERATIONS_ERROR;
ret = SLAPI_DSE_CALLBACK_ERROR;
goto done;
}
slapi_task_set_destructor_fn(task, sidgen_task_destructor);
slapi_task_set_data(task, worker_ctx);
ret = pthread_create(&worker_ctx->tid, NULL, sidgen_task_thread, task);
if (ret != 0) {
LOG_FATAL("unable to create sidgen task thread!\n");
*returncode = LDAP_OPERATIONS_ERROR;
ret = SLAPI_DSE_CALLBACK_ERROR;
slapi_task_finish(task, *returncode);
goto done;
}
ret = SLAPI_DSE_CALLBACK_OK;
*returncode = LDAP_SUCCESS;
done:
if (ret != SLAPI_DSE_CALLBACK_OK) {
slapi_ch_free((void **) &worker_ctx->base_dn);
slapi_ch_free((void **) &worker_ctx);
}
return ret;
}
static int sigden_task_start(Slapi_PBlock *pb)
{
int ret = 0;
ret = slapi_task_register_handler("ipa-sidgen-task", sidgen_task_add);
return ret;
}
int sidgen_task_init(Slapi_PBlock *pb)
{
int ret = 0;
ret = slapi_pblock_get(pb, SLAPI_PLUGIN_IDENTITY,
&global_sidgen_plugin_id);
if (ret != 0 || global_sidgen_plugin_id == NULL) {
LOG_FATAL("Plugin identity not available.\n");
ret = (ret != 0) ? ret : EINVAL;
goto done;
}
ret = slapi_pblock_set(pb, SLAPI_PLUGIN_VERSION,
(void *) SLAPI_PLUGIN_VERSION_03);
ret |= slapi_pblock_set(pb, SLAPI_PLUGIN_START_FN,
(void *) sigden_task_start);
done:
if (ret != 0) {
LOG_FATAL("Failed to initialize plug-in\n" );
}
return ret;
}

4
freeipa.spec.in
View File

@ -359,6 +359,8 @@ rm %{buildroot}/%{plugin_dir}/libipa_uuid.la
rm %{buildroot}/%{plugin_dir}/libipa_modrdn.la
rm %{buildroot}/%{plugin_dir}/libipa_lockout.la
rm %{buildroot}/%{plugin_dir}/libipa_cldap.la
rm %{buildroot}/%{plugin_dir}/libipa_sidgen.la
rm %{buildroot}/%{plugin_dir}/libipa_sidgen_task.la
rm %{buildroot}/%{_libdir}/krb5/plugins/kdb/ipadb.la
rm %{buildroot}/%{_libdir}/samba/pdb/ipasam.la
@ -668,6 +670,8 @@ fi
%{_sbindir}/ipa-adtrust-install
%{_usr}/share/ipa/smb.conf.empty
%attr(755,root,root) %{_libdir}/samba/pdb/ipasam.so
%attr(755,root,root) %{plugin_dir}/libipa_sidgen.so
%attr(755,root,root) %{plugin_dir}/libipa_sidgen_task.so
%{_mandir}/man1/ipa-adtrust-install.1.gz
%{python_sitelib}/ipaserver/dcerpc*
%{python_sitelib}/ipaserver/install/adtrustinstance*

8
ipaserver/install/adtrustinstance.py
View File

@ -223,6 +223,13 @@ class ADTRUSTInstance(service.Service):
except:
pass
def __add_sidgen_module(self):
try:
self._ldap_mod("ipa-sidgen-conf.ldif", self.sub_dict)
self._ldap_mod("ipa-sidgen-task-conf.ldif", self.sub_dict)
except:
pass
def __write_smb_registry(self):
template = os.path.join(ipautil.SHARE_DIR, "smb.conf.template")
conf = ipautil.template_file(template, self.sub_dict)
@ -430,6 +437,7 @@ class ADTRUSTInstance(service.Service):
self.step("adding cifs Kerberos principal", self.__setup_principal)
self.step("adding admin(group) SIDs", self.__add_admin_sids)
self.step("activating CLDAP plugin", self.__add_cldap_module)
self.step("activating sidgen plugin and task", self.__add_sidgen_module)
self.step("configuring smbd to start on boot", self.__enable)
if not self.no_msdcs:
self.step("adding special DNS service records", \