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|
/*
* Copyright 2008 Red Hat, Inc.
*
* 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; version 2 of the License.
*
* This Program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this Program; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
*/
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifdef HAVE_DIRSRV_SLAPI_PLUGIN_H
#include <nspr.h>
#include <nss.h>
#include <dirsrv/slapi-plugin.h>
#else
#include <slapi-plugin.h>
#endif
#include <rpc/xdr.h>
#include <rpcsvc/yp_prot.h>
#ifdef HAVE_TCPD_H
#include <tcpd.h>
#endif
#include "backend.h"
#include "backend.h"
#include "back-shr.h"
#include "format.h"
#include "plugin.h"
#include "map.h"
#define SCH_CONTAINER_CONFIGURATION_FILTER "(&(objectClass=*)(" SCH_CONTAINER_CONFIGURATION_GROUP_ATTR "=*)(" SCH_CONTAINER_CONFIGURATION_CONTAINER_ATTR "=*)(" SCH_CONTAINER_CONFIGURATION_BASE_ATTR "=*)(" SCH_CONTAINER_CONFIGURATION_FILTER_ATTR "=*)(" SCH_CONTAINER_CONFIGURATION_RDN_ATTR "=*))"
/* The data we ask the map cache to keep, for us, for each set. */
struct backend_set_data {
struct backend_shr_set_data common;
/* Schema compatibility-specific data. */
Slapi_DN *container_sdn;
char *rdn_format;
char **attribute_format;
bool_t check_access;
};
struct backend_entry_data {
Slapi_DN *original_entry_dn;
Slapi_Entry *e;
};
/* Read the name of the NIS master. A dummy function for the schema
* compatibility plugin. */
void
backend_free_master_name(struct plugin_state *state, char *master)
{
}
int
backend_read_master_name(struct plugin_state *state, char **master)
{
*master = "localhost";
return -1;
}
/* Manipulate a backend map configuration. */
static void
backend_set_config_free_config_contents(void *data)
{
struct backend_set_data *set_data = data;
if (set_data != NULL) {
free(set_data->common.group);
free(set_data->common.set);
free(set_data->common.bases);
format_free_attr_list(set_data->common.ref_attrs);
format_free_inref_attrs(set_data->common.inref_attrs);
free(set_data->common.entry_filter);
slapi_sdn_free(&set_data->container_sdn);
free(set_data->rdn_format);
backend_shr_free_strlist(set_data->attribute_format);
}
}
void
backend_set_config_free_config(struct backend_shr_set_data *data)
{
backend_set_config_free_config_contents(data->self);
free(data);
}
static struct backend_shr_set_data *
backend_copy_set_config(const struct backend_set_data *data)
{
struct backend_set_data *ret;
ret = malloc(sizeof(*ret));
if (ret == NULL) {
return NULL;
}
ret->common.self = ret;
ret->common.state = data->common.state;
ret->common.group = strdup(data->common.group);
ret->common.set = strdup(data->common.set);
ret->common.bases = backend_shr_dup_strlist(data->common.bases);
ret->common.ref_attrs = data->common.ref_attrs ?
format_dup_attr_list(data->common.ref_attrs) :
NULL;
ret->common.inref_attrs = data->common.inref_attrs ?
format_dup_inref_attrs(data->common.inref_attrs) :
NULL;
ret->common.entry_filter = strdup(data->common.entry_filter);
ret->container_sdn = slapi_sdn_dup(data->container_sdn);
ret->rdn_format = strdup(data->rdn_format);
ret->attribute_format = backend_shr_dup_strlist(data->attribute_format);
ret->check_access = data->check_access;
if ((ret->common.group == NULL) ||
(ret->common.set == NULL) ||
(ret->common.bases == NULL) ||
(ret->common.entry_filter == NULL) ||
(ret->container_sdn == NULL)) {
backend_set_config_free_config(&ret->common);
return NULL;
}
return &ret->common;
}
/* Given a configuration entry, read the map configuration for the given group
* and container name from the entry. */
void
backend_set_config_read_config(struct plugin_state *state, Slapi_Entry *e,
const char *group, const char *container,
bool_t *flag, struct backend_shr_set_data **pret)
{
char **bases, *entry_filter, **attributes, *rdn_format, *dn;
bool_t check_access;
char *actual_attr;
const char *cvalue;
int i, j, disposition, buffer_flags, count;
struct backend_set_data ret;
Slapi_ValueSet *values;
Slapi_Value *value;
/* Read the values from the configuration entry. */
bases = NULL;
if (slapi_vattr_values_get(e, SCH_CONTAINER_CONFIGURATION_BASE_ATTR,
&values,
&disposition, &actual_attr,
0, &buffer_flags) == 0) {
count = slapi_valueset_count(values);
bases = malloc(sizeof(char *) * (count + 1));
if (bases != NULL) {
i = 0;
for (j = slapi_valueset_first_value(values, &value);
j != -1;
j = slapi_valueset_next_value(values, j, &value)) {
cvalue = slapi_value_get_string(value);
bases[i++] = strdup(cvalue);
}
bases[i] = NULL;
}
slapi_vattr_values_free(&values, &actual_attr, buffer_flags);
}
entry_filter = NULL;
if (slapi_vattr_values_get(e, SCH_CONTAINER_CONFIGURATION_FILTER_ATTR,
&values,
&disposition, &actual_attr,
0, &buffer_flags) == 0) {
i = slapi_valueset_first_value(values, &value);
if (i != -1) {
cvalue = slapi_value_get_string(value);
if (strlen(cvalue) > 1) {
if ((cvalue[0] != '(') ||
(cvalue[strlen(cvalue) - 1] != ')')) {
entry_filter = malloc(strlen(cvalue) +
3);
if (entry_filter != NULL) {
sprintf(entry_filter, "(%s)",
cvalue);
}
}
}
if (entry_filter == NULL) {
entry_filter = strdup(cvalue);
}
}
slapi_vattr_values_free(&values, &actual_attr, buffer_flags);
}
rdn_format = NULL;
if (slapi_vattr_values_get(e, SCH_CONTAINER_CONFIGURATION_RDN_ATTR,
&values,
&disposition, &actual_attr,
0, &buffer_flags) == 0) {
i = slapi_valueset_first_value(values, &value);
if (i != -1) {
cvalue = slapi_value_get_string(value);
rdn_format = strdup(cvalue);
}
slapi_vattr_values_free(&values, &actual_attr, buffer_flags);
}
check_access = TRUE;
if (slapi_vattr_values_get(e, SCH_CONTAINER_CONFIGURATION_ACCESS_ATTR,
&values,
&disposition, &actual_attr,
0, &buffer_flags) == 0) {
i = slapi_valueset_first_value(values, &value);
if (i != -1) {
cvalue = slapi_value_get_string(value);
/* FIXME: use nl_langinfo(YESEXPR) here? */
if ((strcasecmp(cvalue, "yes") == 0) ||
(strcasecmp(cvalue, "on") == 0) ||
(strcasecmp(cvalue, "1") == 0)) {
check_access = TRUE;
} else {
check_access = FALSE;
}
}
slapi_vattr_values_free(&values, &actual_attr, buffer_flags);
}
attributes = NULL;
if (slapi_vattr_values_get(e, SCH_CONTAINER_CONFIGURATION_ATTR_ATTR,
&values,
&disposition, &actual_attr,
0, &buffer_flags) == 0) {
count = slapi_valueset_count(values);
attributes = malloc(sizeof(char *) * (count + 1));
if (attributes != NULL) {
i = 0;
for (j = slapi_valueset_first_value(values, &value);
j != -1;
j = slapi_valueset_next_value(values, j, &value)) {
cvalue = slapi_value_get_string(value);
attributes[i++] = strdup(cvalue);
}
attributes[i] = NULL;
}
slapi_vattr_values_free(&values, &actual_attr, buffer_flags);
}
/* Populate the returned structure. */
ret.common.state = state;
ret.common.group = strdup(group);
ret.common.set = strdup(container);
ret.common.bases = bases;
ret.common.entry_filter = entry_filter;
ret.common.ref_attrs = NULL;
ret.common.inref_attrs = NULL;
dn = slapi_dn_plus_rdn(ret.common.group, ret.common.set);
ret.container_sdn = slapi_sdn_new_dn_passin(dn);
ret.rdn_format = rdn_format;
ret.attribute_format = attributes;
ret.check_access = check_access;
*pret = backend_copy_set_config(&ret);
free(ret.common.group);
free(ret.common.set);
if (ret.common.bases != NULL) {
for (i = 0; ret.common.bases[i] != NULL; i++) {
free(ret.common.bases[i]);
}
free(ret.common.bases);
}
free(ret.common.entry_filter);
slapi_sdn_free(&ret.container_sdn);
if (ret.attribute_format != NULL) {
for (i = 0; ret.attribute_format[i] != NULL; i++) {
free(ret.attribute_format[i]);
}
free(ret.attribute_format);
}
free(ret.rdn_format);
}
/* Create and destroy entry-specific data. */
static struct backend_entry_data *
backend_entry_make_entry_data(Slapi_DN *original_entry_dn, Slapi_Entry *e)
{
struct backend_entry_data *ret;
ret = malloc(sizeof(*ret));
if (ret != NULL) {
ret->original_entry_dn = slapi_sdn_dup(original_entry_dn);
ret->e = e;
} else {
slapi_entry_free(e);
}
return ret;
}
static void
backend_entry_free_entry_data(void *p)
{
struct backend_entry_data *data;
data = p;
slapi_entry_free(data->e);
slapi_sdn_free(&data->original_entry_dn);
free(data);
}
/* Given a map-entry directory entry, determine a key, a value, and extra data
* to be stored in the map cache, and add them to the map cache. */
void
backend_set_entry(Slapi_Entry *e, struct backend_set_data *data)
{
char *dn, *rdn, *ndn, *ldif, *plugin_id, *keys[2], **ava, *val;
const char *rdnstr;
int len, i, j;
Slapi_Entry *entry;
Slapi_DN *e_dn;
Slapi_RDN *srdn;
plugin_id = data->common.state->plugin_desc->spd_id;
e_dn = slapi_entry_get_sdn(e);
ndn = slapi_entry_get_ndn(e);
/* Generate the RDN for the entry. */
rdn = format_get_data(data->common.state, e,
data->common.group, data->common.set,
data->rdn_format, NULL,
&data->common.ref_attrs,
&data->common.inref_attrs);
/* Now build the entry itself, and set the DN first. */
entry = slapi_entry_alloc();
dn = slapi_dn_plus_rdn(slapi_sdn_get_ndn(data->container_sdn), rdn);
slapi_entry_set_dn(entry, dn); /* NOTE: the entry now owns the dn */
/* Iterate through the set of attributes. */
if (data->attribute_format != NULL) {
for (i = 0; data->attribute_format[i] != NULL; i++) {
ava = format_get_data_set(data->common.state, e,
data->common.group,
data->common.set,
data->attribute_format[i],
NULL,
&data->common.ref_attrs,
&data->common.inref_attrs);
if (ava != NULL) {
for (j = 0; ava[j] != NULL; j++) {
val = strchr(ava[j], '=');
if ((val != NULL) && (val[1] != '\0')) {
*val = '\0';
slapi_entry_add_string(entry,
ava[j],
val + 1);
*val = '=';
}
}
format_free_data_set(ava);
}
}
}
/* Try to make the entry look "right". */
if (!slapi_entry_rdn_values_present(entry)) {
slapi_entry_add_rdn_values(entry);
}
if (slapi_entry_schema_check(NULL, entry) != 0) {
slapi_entry_add_string(entry,
"objectClass", "extensibleObject");
}
/* Clean up some LDIF. */
ldif = slapi_entry2str(entry, &len);
/* Recreate the entry. */
slapi_entry_free(entry);
entry = slapi_str2entry(ldif,
SLAPI_STR2ENTRY_REMOVEDUPVALS |
SLAPI_STR2ENTRY_ADDRDNVALS |
SLAPI_STR2ENTRY_EXPAND_OBJECTCLASSES |
SLAPI_STR2ENTRY_NOT_WELL_FORMED_LDIF);
slapi_ch_free((void **) &ldif);
/* Normalize the RDN, so that we can use it as a key. */
srdn = slapi_rdn_new_sdn(slapi_entry_get_sdn(entry));
if (srdn != NULL) {
rdnstr = slapi_rdn_get_rdn(srdn);
} else {
rdnstr = NULL;
}
/* If we actually generated a useful new entry for this entry, then set
* it, otherwise clear it in case there was one set before. */
if ((rdnstr != NULL) && (slapi_entry_get_ndn(entry) != NULL)) {
slapi_log_error(SLAPI_LOG_PLUGIN, plugin_id,
"setting group/container/key/value "
"\"%s\"/\"%s\"/\"%s\"(\"%s\")=\"%s\"\n",
data->common.group, data->common.set,
rdn, ndn, slapi_entry_get_ndn(entry));
keys[0] = (char *) rdnstr;
keys[1] = NULL;
map_data_set_entry(data->common.state,
data->common.group, data->common.set, ndn,
NULL, keys, -1, slapi_entry_get_ndn(entry),
backend_entry_make_entry_data(e_dn, entry),
backend_entry_free_entry_data);
} else {
slapi_log_error(SLAPI_LOG_PLUGIN, plugin_id,
"no value for %s, unsetting domain/map/id"
"\"%s\"/\"%s\"/(\"%s\")\n",
ndn, data->common.group, data->common.set, ndn);
map_data_unset_entry(data->common.state,
data->common.group, data->common.set, ndn);
slapi_entry_free(entry);
}
slapi_rdn_free(&srdn);
format_free_data(rdn);
}
/* Process a set configuration directory entry. Pull out the group and
* container names which are valid for this configuration and configure such a
* container for each in turn. */
int
backend_set_config_entry_add_cb(Slapi_Entry *e, void *callback_data)
{
char **groups, **containers, *actual_attr;
const char *cvalue;
Slapi_ValueSet *values;
Slapi_Value *value;
int i, j, ret, disposition, buffer_flags, count;
struct plugin_state *state;
state = callback_data;
groups = NULL;
if (slapi_vattr_values_get(e, SCH_CONTAINER_CONFIGURATION_GROUP_ATTR,
&values,
&disposition, &actual_attr,
0, &buffer_flags) == 0) {
count = slapi_valueset_count(values);
groups = malloc(sizeof(char *) * (count + 1));
if (groups != NULL) {
for (i = slapi_valueset_first_value(values, &value);
i != -1;
i = slapi_valueset_next_value(values, i, &value)) {
cvalue = slapi_value_get_string(value);
groups[i] = strdup(cvalue);
}
groups[count] = NULL;
}
slapi_vattr_values_free(&values, &actual_attr, buffer_flags);
}
containers = NULL;
if (slapi_vattr_values_get(e, SCH_CONTAINER_CONFIGURATION_CONTAINER_ATTR,
&values,
&disposition, &actual_attr,
0, &buffer_flags) == 0) {
count = slapi_valueset_count(values);
containers = malloc(sizeof(char *) * (count + 1));
if (containers != NULL) {
for (i = slapi_valueset_first_value(values, &value);
i != -1;
i = slapi_valueset_next_value(values, i, &value)) {
cvalue = slapi_value_get_string(value);
containers[i] = strdup(cvalue);
}
containers[count] = NULL;
}
slapi_vattr_values_free(&values, &actual_attr, buffer_flags);
}
for (i = 0; (groups != NULL) && (groups[i] != NULL); i++) {
for (j = 0;
(containers != NULL) && (containers[j] != NULL);
j++) {
ret = backend_shr_set_config_entry_add(state, e,
groups[i],
containers[j]);
}
}
if (groups != NULL) {
for (i = 0; (groups != NULL) && (groups[i] != NULL); i++) {
free(groups[i]);
}
free(groups);
}
if (containers != NULL) {
for (i = 0;
(containers != NULL) && (containers[i] != NULL);
i++) {
free(containers[i]);
}
free(containers);
}
return 0;
}
/* Process a set configuration directory entry. Pull out the domain and map
* names which are specified in the entry and delete each in turn. */
int
backend_set_config_entry_delete_cb(Slapi_Entry *e, void *callback_data)
{
struct plugin_state *state;
state = callback_data;
return backend_shr_set_config_entry_delete(state, e,
SCH_CONTAINER_CONFIGURATION_GROUP_ATTR,
SCH_CONTAINER_CONFIGURATION_CONTAINER_ATTR);
}
/* Functions for passing information about a container's configuration to the
* formatting functions. */
struct backend_get_set_config_cb {
struct plugin_state *state;
char **bases;
char *entry_filter;
};
void
backend_free_set_config(char **bases, char *entry_filter)
{
int i;
if (bases != NULL) {
for (i = 0; bases[i] != NULL; i++) {
free(bases[i]);
}
free(bases);
}
free(entry_filter);
}
static bool_t
backend_get_set_config_entry_cb(Slapi_Entry *e, void *callback_data)
{
Slapi_ValueSet *values;
Slapi_Value *value;
struct backend_get_set_config_cb *cbdata;
char *actual_attr;
const char *cvalue;
int disposition, buffer_flags, i, count, len;
cbdata = callback_data;
slapi_log_error(SLAPI_LOG_PLUGIN,
cbdata->state->plugin_desc->spd_id,
"reading container configuration from \"%s\"\n",
slapi_entry_get_ndn(e));
values = NULL;
value = NULL;
if (slapi_vattr_values_get(e, SCH_CONTAINER_CONFIGURATION_BASE_ATTR,
&values,
&disposition, &actual_attr,
0, &buffer_flags) == 0) {
count = slapi_valueset_count(values);
cbdata->bases = malloc(sizeof(char *) * (count + 1));
if (cbdata->bases != NULL) {
for (i = slapi_valueset_first_value(values, &value);
i != -1;
i = slapi_valueset_next_value(values, i, &value)) {
cvalue = slapi_value_get_string(value);
cbdata->bases[i] = strdup(cvalue);
}
cbdata->bases[count] = NULL;
}
slapi_vattr_values_free(&values, &actual_attr, buffer_flags);
}
if (slapi_vattr_values_get(e, SCH_CONTAINER_CONFIGURATION_FILTER_ATTR,
&values,
&disposition, &actual_attr,
0, &buffer_flags) == 0) {
if (slapi_valueset_first_value(values, &value) != -1) {
cvalue = slapi_value_get_string(value);
if (cvalue != NULL) {
free(cbdata->entry_filter);
cbdata->entry_filter = NULL;
if ((cvalue[0] != '(') ||
(cvalue[strlen(cvalue) - 1] != ')')) {
len = strlen(cvalue) + 3;
cbdata->entry_filter = malloc(len);
if (cbdata->entry_filter != NULL) {
sprintf(cbdata->entry_filter,
"(%s)", cvalue);
}
}
if (cbdata->entry_filter == NULL) {
cbdata->entry_filter = strdup(cvalue);
}
}
}
slapi_vattr_values_free(&values, &actual_attr, buffer_flags);
}
return TRUE;
}
void
backend_get_set_config(struct plugin_state *state,
const char *group, const char *container,
char ***bases, char **entry_filter)
{
Slapi_PBlock *pb;
char *filter;
char *attrs[] = {SCH_CONTAINER_CONFIGURATION_FILTER_ATTR,
SCH_CONTAINER_CONFIGURATION_BASE_ATTR,
NULL};
struct backend_get_set_config_cb cbdata;
/* Build the search filter. */
filter = malloc(strlen("(&("
SCH_CONTAINER_CONFIGURATION_GROUP_ATTR "=)("
SCH_CONTAINER_CONFIGURATION_CONTAINER_ATTR "=)"
")") +
strlen(group) + strlen(container) +
strlen(SCH_CONTAINER_CONFIGURATION_FILTER) + 1);
if (filter == NULL) {
slapi_log_error(SLAPI_LOG_PLUGIN,
state->plugin_desc->spd_id,
"out of memory reading configuration for "
"\"%s\"/\"%s\"!\n", group, container);
return;
}
sprintf(filter, "(&("
SCH_CONTAINER_CONFIGURATION_GROUP_ATTR "=%s)("
SCH_CONTAINER_CONFIGURATION_CONTAINER_ATTR "=%s)%s)",
group, container, SCH_CONTAINER_CONFIGURATION_FILTER);
/* Perform the search. */
pb = slapi_pblock_new();
slapi_search_internal_set_pb(pb,
state->plugin_base,
LDAP_SCOPE_SUB,
filter,
attrs, FALSE,
NULL,
NULL,
state->plugin_identity,
0);
cbdata.bases = NULL;
cbdata.state = state;
cbdata.entry_filter = NULL;
slapi_search_internal_callback_pb(pb, &cbdata,
NULL,
backend_get_set_config_entry_cb,
NULL);
/* Return the results. */
*bases = cbdata.bases;
*entry_filter = cbdata.entry_filter;
/* Clean up. */
slapi_pblock_destroy(pb);
}
/* Given an entry, return the filter which will match a container entry beneath
* the plugin's configuration entry. */
const char *
backend_entry_get_set_config_entry_filter(void)
{
return SCH_CONTAINER_CONFIGURATION_FILTER;
}
/* Re-read plugin-wide settings that may have changed. Nothing to do. */
void
backend_update_params(struct plugin_state *state)
{
}
/* Intercept a search request, and if it belongs to one of our compatibility
* trees, answer from our cache before letting the default database have a
* crack at it. */
struct backend_search_cbdata {
Slapi_PBlock *pb;
struct plugin_state *state;
char *target, *strfilter, **attrs;
int scope, sizelimit, timelimit, attrsonly;
bool_t check_access;
Slapi_DN *target_dn;
Slapi_Filter *filter;
bool_t answer;
int result;
const char *matched, *text;
int n_entries;
};
static bool_t
backend_search_entry_cb(const char *domain, const char *map, bool_t secure,
const char *key, unsigned int key_len,
const char *value, unsigned int value_len,
const char *id, int key_index,
void *backend_data, void *cb_data)
{
Slapi_DN *sdn;
struct backend_search_cbdata *cbdata;
struct backend_entry_data *entry_data;
int result;
cbdata = cb_data;
entry_data = backend_data;
sdn = slapi_entry_get_sdn(entry_data->e);
/* We've already done the scope check, so just check the entry against
* the filter. */
result = slapi_filter_test(cbdata->pb, entry_data->e,
cbdata->filter, cbdata->check_access);
switch (result) {
case -1:
/* Not a match. */
break;
case 0:
/* Match. Return the entry. */
slapi_log_error(SLAPI_LOG_PLUGIN,
cbdata->state->plugin_desc->spd_id,
"search matched %s\n",
slapi_sdn_get_ndn(sdn));
slapi_send_ldap_search_entry(cbdata->pb, entry_data->e, NULL,
cbdata->attrs, cbdata->attrsonly);
cbdata->n_entries++;
break;
default:
/* Return an LDAP error. */
slapi_log_error(SLAPI_LOG_PLUGIN,
cbdata->state->plugin_desc->spd_id,
"search got error %d checking %s\n",
result, slapi_sdn_get_ndn(sdn));
cbdata->answer = TRUE;
if (cbdata->result == 0) {
cbdata->result = result;
}
break;
}
return TRUE;
}
static bool_t
backend_search_set_cb(const char *group, const char *set, bool_t flag,
void *backend_data, void *cb_data)
{
struct backend_search_cbdata *cbdata;
struct backend_set_data *set_data;
Slapi_Entry *set_entry;
int result;
const char *ndn;
cbdata = cb_data;
set_data = backend_data;
cbdata->check_access = set_data->check_access;
/* Check the set itself. */
if (slapi_sdn_scope_test(set_data->container_sdn, cbdata->target_dn,
cbdata->scope)) {
set_entry = slapi_entry_alloc();
slapi_entry_add_string(set_entry,
"objectClass", "extensibleObject");
slapi_entry_set_sdn(set_entry, set_data->container_sdn);
if (!slapi_entry_rdn_values_present(set_entry)) {
slapi_entry_add_rdn_values(set_entry);
}
ndn = slapi_sdn_get_ndn(set_data->container_sdn);
result = slapi_filter_test(cbdata->pb, set_entry,
cbdata->filter,
cbdata->check_access);
switch (result) {
case -1:
/* Not a match. */
break;
case 0:
/* Match. Return the entry. */
slapi_log_error(SLAPI_LOG_PLUGIN,
cbdata->state->plugin_desc->spd_id,
"search matched %s\n", ndn);
slapi_send_ldap_search_entry(cbdata->pb, set_entry,
NULL, cbdata->attrs,
cbdata->attrsonly);
cbdata->n_entries++;
break;
default:
/* Return an LDAP error. */
slapi_log_error(SLAPI_LOG_PLUGIN,
cbdata->state->plugin_desc->spd_id,
"search got error %d checking %s\n",
result, ndn);
cbdata->answer = TRUE;
if (cbdata->result == 0) {
cbdata->result = result;
}
break;
}
slapi_entry_free(set_entry);
}
/* Now scope-check the set's contents so that we only do it once. */
switch (cbdata->scope) {
case LDAP_SCOPE_BASE:
/* If the container is not the parent of the target, then we're
* done with this set. */
if (slapi_sdn_isparent(set_data->container_sdn,
cbdata->target_dn) != 1) {
return TRUE;
}
break;
case LDAP_SCOPE_ONE:
/* If it's not a scope=one search of this set, then we're done
* with this set. */
if (slapi_sdn_compare(set_data->container_sdn,
cbdata->target_dn) != 0) {
return TRUE;
}
break;
case LDAP_SCOPE_SUB:
/* If the search suffix is not a suffix of the set and it's not
* the set itself, then we're done with this set. */
if ((slapi_sdn_compare(set_data->container_sdn,
cbdata->target_dn) != 0) &&
(slapi_sdn_issuffix(set_data->container_sdn,
cbdata->target_dn) != 1)) {
return TRUE;
}
break;
}
/* Walk the set of entries in this set. */
map_data_foreach_entry_id(cbdata->state, group, set, NULL,
backend_search_entry_cb, cbdata);
return TRUE;
}
static bool_t
backend_search_group_cb(const char *group, void *cb_data)
{
struct backend_search_cbdata *cbdata;
Slapi_DN *group_dn;
Slapi_Entry *group_entry;
int result;
cbdata = cb_data;
/* Check the group itself. */
group_dn = slapi_sdn_new_dn_byref(group);
if (slapi_sdn_scope_test(group_dn, cbdata->target_dn, cbdata->scope)) {
group_entry = slapi_entry_alloc();
slapi_entry_add_string(group_entry,
"objectClass", "extensibleObject");
slapi_entry_set_sdn(group_entry, group_dn);
if (!slapi_entry_rdn_values_present(group_entry)) {
slapi_entry_add_rdn_values(group_entry);
}
result = slapi_filter_test(cbdata->pb, group_entry,
cbdata->filter,
cbdata->check_access);
switch (result) {
case -1:
/* Not a match. */
break;
case 0:
/* Match. Return the entry. */
slapi_log_error(SLAPI_LOG_PLUGIN,
cbdata->state->plugin_desc->spd_id,
"search matched %s\n", group);
slapi_send_ldap_search_entry(cbdata->pb, group_entry,
NULL, cbdata->attrs,
cbdata->attrsonly);
cbdata->n_entries++;
break;
default:
/* Return an LDAP error. */
slapi_log_error(SLAPI_LOG_PLUGIN,
cbdata->state->plugin_desc->spd_id,
"search got error %d checking %s\n",
result, group);
cbdata->answer = TRUE;
if (cbdata->result == 0) {
cbdata->result = result;
}
break;
}
slapi_entry_free(group_entry);
}
/* Now check the group's sets and their contents. */
map_data_foreach_map(cbdata->state, group,
backend_search_set_cb, cbdata);
/* If the search is confined to this group, we need to send the result
* ourselves. */
if (slapi_sdn_scope_test(cbdata->target_dn, group_dn, LDAP_SCOPE_SUB)) {
cbdata->answer = TRUE;
}
slapi_sdn_free(&group_dn);
return TRUE;
}
static int
backend_search_cb(Slapi_PBlock *pb)
{
struct backend_search_cbdata cbdata;
cbdata.pb = pb;
slapi_pblock_get(pb, SLAPI_PLUGIN_PRIVATE, &cbdata.state);
slapi_pblock_get(pb, SLAPI_SEARCH_TARGET, &cbdata.target);
cbdata.target_dn = slapi_sdn_new_dn_byval(cbdata.target);
slapi_pblock_get(pb, SLAPI_SEARCH_SCOPE, &cbdata.scope);
slapi_pblock_get(pb, SLAPI_SEARCH_SIZELIMIT, &cbdata.sizelimit);
slapi_pblock_get(pb, SLAPI_SEARCH_TIMELIMIT, &cbdata.timelimit);
slapi_pblock_get(pb, SLAPI_SEARCH_FILTER, &cbdata.filter);
slapi_pblock_get(pb, SLAPI_SEARCH_STRFILTER, &cbdata.strfilter);
slapi_pblock_get(pb, SLAPI_SEARCH_ATTRS, &cbdata.attrs);
slapi_pblock_get(pb, SLAPI_SEARCH_ATTRSONLY, &cbdata.attrsonly);
slapi_log_error(SLAPI_LOG_PLUGIN, cbdata.state->plugin_desc->spd_id,
"searching from \"%s\" for \"%s\" with scope %d\n",
cbdata.target, cbdata.strfilter, cbdata.scope);
cbdata.answer = FALSE;
cbdata.result = 0;
cbdata.matched = "";
cbdata.text = "";
cbdata.n_entries = 0;
map_rdlock();
map_data_foreach_domain(cbdata.state, backend_search_group_cb, &cbdata);
map_unlock();
slapi_sdn_free(&cbdata.target_dn);
if (cbdata.answer) {
slapi_send_ldap_result(cbdata.pb, cbdata.result,
(char *) cbdata.matched,
(char *) cbdata.text,
cbdata.n_entries, NULL);
}
return cbdata.answer ? -1 : 0;
}
/* Locate the entry for a given DN. */
struct backend_locate_cbdata {
struct plugin_state *state;
char *target;
Slapi_DN *target_dn;
struct backend_entry_data *entry_data;
};
/* Check if the target DN is an entry in this container's set of entries. If
* it is, pull the entry's data out and save it. */
static bool_t
backend_locate_cb(const char *group, const char *set, bool_t flag,
void *backend_set_data, void *cb_data)
{
struct backend_locate_cbdata *cbdata;
struct backend_set_data *set_data;
struct backend_entry_data *entry_data;
Slapi_RDN *rdn;
const char *rdnstr, *ndn, *original_dn;
unsigned int ndnlen;
cbdata = cb_data;
set_data = backend_set_data;
/* Check if the target DN looks like it would be part of this set. */
if (slapi_sdn_scope_test(cbdata->target_dn, set_data->container_sdn,
LDAP_SCOPE_ONE)) {
/* Pull out the RDN and check for an entry which is using the
* RDN as a key. */
rdn = slapi_rdn_new_sdn(cbdata->target_dn);
if (rdn != NULL) {
rdnstr = slapi_rdn_get_rdn(rdn);
if (map_match(cbdata->state, group, set, &flag,
strlen(rdnstr), rdnstr,
&ndnlen, &ndn,
&original_dn, (void **) &entry_data)) {
if (entry_data != NULL) {
cbdata->entry_data = entry_data;
}
}
slapi_rdn_free(&rdn);
}
}
return TRUE;
}
static void
backend_locate(Slapi_PBlock *pb, struct backend_entry_data **data)
{
struct backend_locate_cbdata cbdata;
slapi_pblock_get(pb, SLAPI_PLUGIN_PRIVATE, &cbdata.state);
slapi_pblock_get(pb, SLAPI_TARGET_DN, &cbdata.target);
cbdata.target_dn = slapi_sdn_new_dn_byval(cbdata.target);
cbdata.entry_data = NULL;
map_data_foreach_map(cbdata.state, NULL, backend_locate_cb, &cbdata);
*data = cbdata.entry_data;
slapi_sdn_free(&cbdata.target_dn);
}
/* Check if the target DN is part of this group's tree. If it is, return an
* insufficient-access error. */
struct backend_group_check_scope_cbdata {
struct plugin_state *state;
const char *target;
Slapi_DN *target_dn;
bool_t ours;
};
static bool_t
backend_group_check_scope_cb(const char *group, void *cb_data)
{
struct backend_group_check_scope_cbdata *cbdata;
Slapi_DN *group_dn;
cbdata = cb_data;
group_dn = slapi_sdn_new_dn_byref(group);
if (slapi_sdn_scope_test(cbdata->target_dn, group_dn, LDAP_SCOPE_SUB)) {
cbdata->ours = TRUE;
}
slapi_sdn_free(&group_dn);
return TRUE;
}
static bool_t
backend_check_scope(struct plugin_state *state, const char *target)
{
struct backend_group_check_scope_cbdata cbdata;
cbdata.state = state;
cbdata.target = target;
cbdata.target_dn = slapi_sdn_new_dn_byval(cbdata.target);
cbdata.ours = FALSE;
map_rdlock();
map_data_foreach_domain(cbdata.state, backend_group_check_scope_cb,
&cbdata);
map_unlock();
slapi_sdn_free(&cbdata.target_dn);
return cbdata.ours;
}
static bool_t
backend_check_scope_pb(Slapi_PBlock *pb)
{
struct plugin_state *state;
char *target;
slapi_pblock_get(pb, SLAPI_PLUGIN_PRIVATE, &state);
slapi_pblock_get(pb, SLAPI_TARGET_DN, &target);
return backend_check_scope(state, target);
}
static int
backend_write_cb(Slapi_PBlock *pb)
{
int ret;
map_rdlock();
if (backend_check_scope_pb(pb)) {
slapi_send_ldap_result(pb, LDAP_INSUFFICIENT_ACCESS,
NULL, NULL, 0, NULL);
ret = -1;
} else {
ret = 0;
}
map_unlock();
return ret;
}
static int
backend_bind_cb(Slapi_PBlock *pb)
{
struct backend_entry_data *data;
int ret;
struct berval ref;
struct berval *urls[] = {&ref, NULL};
const char *ndn;
map_rdlock();
backend_locate(pb, &data);
if (data != NULL) {
ndn = slapi_sdn_get_ndn(data->original_entry_dn);
ref.bv_len = strlen("ldap:///") + strlen(ndn);
ref.bv_val = malloc(ref.bv_len + 1);
if (ref.bv_val != NULL) {
sprintf(ref.bv_val, "ldap:///%s", ndn);
slapi_send_ldap_result(pb, LDAP_REFERRAL,
NULL, NULL, 0, urls);
free(ref.bv_val);
} else {
slapi_send_ldap_result(pb, LDAP_BUSY,
NULL, NULL, 0, NULL);
}
ret = -1;
} else {
if (backend_check_scope_pb(pb)) {
slapi_send_ldap_result(pb, LDAP_INVALID_CREDENTIALS,
NULL, NULL, 0, NULL);
ret = -1;
} else {
ret = 0;
}
}
map_unlock();
return ret;
}
static int
backend_compare_cb(Slapi_PBlock *pb)
{
int ret;
map_rdlock();
if (backend_check_scope_pb(pb)) {
slapi_send_ldap_result(pb, LDAP_UNWILLING_TO_PERFORM,
NULL, NULL, 0, NULL);
ret = -1;
} else {
ret = 0;
}
map_unlock();
return ret;
}
/* Populate our data cache. */
void
backend_startup(struct plugin_state *state)
{
backend_shr_startup(state, SCH_CONTAINER_CONFIGURATION_FILTER);
}
void
backend_init_preop(Slapi_PBlock *pb, struct plugin_state *state)
{
slapi_log_error(SLAPI_LOG_PLUGIN, state->plugin_desc->spd_id,
"hooking up preoperation callbacks\n");
/* Intercept bind requests and return a referral or failure for entries
* that we're managing. */
if (slapi_pblock_set(pb, SLAPI_PLUGIN_PRE_BIND_FN,
backend_bind_cb) != 0) {
slapi_log_error(SLAPI_LOG_PLUGIN, state->plugin_desc->spd_id,
"error hooking up bind callback\n");
}
/* Intercept compare requests and return the right data. */
if (slapi_pblock_set(pb, SLAPI_PLUGIN_PRE_COMPARE_FN,
backend_compare_cb) != 0) {
slapi_log_error(SLAPI_LOG_PLUGIN, state->plugin_desc->spd_id,
"error hooking up bind callback\n");
}
/* Intercept search requests and return the right data. */
if (slapi_pblock_set(pb, SLAPI_PLUGIN_PRE_SEARCH_FN,
backend_search_cb) != 0) {
slapi_log_error(SLAPI_LOG_PLUGIN, state->plugin_desc->spd_id,
"error hooking up search callback\n");
}
/* Intercept write requests and return an insufficient-access error for
* attempts to write to anything we're managing. */
if (slapi_pblock_set(pb, SLAPI_PLUGIN_PRE_ADD_FN,
backend_write_cb) != 0) {
slapi_log_error(SLAPI_LOG_PLUGIN, state->plugin_desc->spd_id,
"error hooking up add callback\n");
}
if (slapi_pblock_set(pb, SLAPI_PLUGIN_PRE_MODIFY_FN,
backend_write_cb) != 0) {
slapi_log_error(SLAPI_LOG_PLUGIN, state->plugin_desc->spd_id,
"error hooking up modify callback\n");
}
if (slapi_pblock_set(pb, SLAPI_PLUGIN_PRE_MODRDN_FN,
backend_write_cb) != 0) {
slapi_log_error(SLAPI_LOG_PLUGIN, state->plugin_desc->spd_id,
"error hooking up modrdn callback\n");
}
if (slapi_pblock_set(pb, SLAPI_PLUGIN_PRE_DELETE_FN,
backend_write_cb) != 0) {
slapi_log_error(SLAPI_LOG_PLUGIN, state->plugin_desc->spd_id,
"error hooking up delete callback\n");
}
/* We don't hook abandonment requests. */
/* We don't hook unbind requests. */
}
void
backend_init_postop(Slapi_PBlock *pb, struct plugin_state *state)
{
slapi_log_error(SLAPI_LOG_PLUGIN, state->plugin_desc->spd_id,
"hooking up postoperation callbacks\n");
backend_shr_postop_init(pb, state);
}
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