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samba-mirror/source4/ldap_server/ldap_simple_ldb.c
Stefan Metzmacher 8a18778286 r3783: - don't use make proto for ldb anymore
- split ldh.h out of samba's includes.h

- make ldb_context and ldb_module private to the subsystem

- use ltdb_ prefix for all ldb_tdb functions

metze
(This used to be commit f5ee40d6ce)
2007-10-10 13:05:52 -05:00

621 lines
17 KiB
C

/*
Unix SMB/CIFS implementation.
LDAP server SIMPLE LDB implementation
Copyright (C) Stefan Metzmacher 2004
Copyright (C) Simo Sorce 2004
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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "ldap_server/ldap_server.h"
#include "ldap_parse.h"
#include "lib/ldb/include/ldb.h"
/* TODO: samdb_context is not a pulblic struct */
struct samdb_context {
struct ldb_context *ldb;
struct samdb_context **static_ptr;
};
#define ALLOC_CHECK(ptr) do {\
if (!(ptr)) {\
return NT_STATUS_NO_MEMORY;\
}\
} while(0)
#define VALID_DN_SYNTAX(dn,i) do {\
if (!(dn)) {\
return NT_STATUS_NO_MEMORY;\
} else if ((dn)->comp_num < (i)) {\
result = LDAP_INVALID_DN_SYNTAX;\
errstr = "Invalid DN (" #i " components needed for '" #dn "')";\
goto reply;\
}\
} while(0)
static NTSTATUS sldb_Search(struct ldapsrv_partition *partition, struct ldapsrv_call *call,
struct ldap_SearchRequest *r)
{
NTSTATUS status;
void *local_ctx;
struct ldap_dn *basedn;
struct ldap_Result *done;
struct ldap_SearchResEntry *ent;
struct ldapsrv_reply *ent_r, *done_r;
int result = LDAP_SUCCESS;
struct samdb_context *samdb;
struct ldb_message **res;
int i, j, y, count;
enum ldb_scope scope = LDB_SCOPE_DEFAULT;
const char **attrs = NULL;
const char *errstr = NULL;
local_ctx = talloc_named(call, 0, "sldb_Search local memory context");
ALLOC_CHECK(local_ctx);
samdb = samdb_connect(local_ctx);
ALLOC_CHECK(samdb);
basedn = ldap_parse_dn(local_ctx, r->basedn);
VALID_DN_SYNTAX(basedn,0);
DEBUG(10, ("sldb_Search: basedn: [%s]\n", basedn->dn));
DEBUG(10, ("sldb_Search: filter: [%s]\n", r->filter));
switch (r->scope) {
case LDAP_SEARCH_SCOPE_BASE:
DEBUG(10,("sldb_Search: scope: [BASE]\n"));
scope = LDB_SCOPE_BASE;
break;
case LDAP_SEARCH_SCOPE_SINGLE:
DEBUG(10,("sldb_Search: scope: [ONE]\n"));
scope = LDB_SCOPE_ONELEVEL;
break;
case LDAP_SEARCH_SCOPE_SUB:
DEBUG(10,("sldb_Search: scope: [SUB]\n"));
scope = LDB_SCOPE_SUBTREE;
break;
}
if (r->num_attributes >= 1) {
attrs = talloc_array_p(samdb, const char *, r->num_attributes+1);
ALLOC_CHECK(attrs);
for (i=0; i < r->num_attributes; i++) {
DEBUG(10,("sldb_Search: attrs: [%s]\n",r->attributes[i]));
attrs[i] = r->attributes[i];
}
attrs[i] = NULL;
}
ldb_set_alloc(samdb->ldb, talloc_realloc_fn, samdb);
count = ldb_search(samdb->ldb, basedn->dn, scope, r->filter, attrs, &res);
for (i=0; i < count; i++) {
ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
ALLOC_CHECK(ent_r);
ent = &ent_r->msg.r.SearchResultEntry;
ent->dn = talloc_steal(ent_r, res[i]->dn);
ent->num_attributes = 0;
ent->attributes = NULL;
if (res[i]->num_elements == 0) {
goto queue_reply;
}
ent->num_attributes = res[i]->num_elements;
ent->attributes = talloc_array_p(ent_r, struct ldap_attribute, ent->num_attributes);
ALLOC_CHECK(ent->attributes);
for (j=0; j < ent->num_attributes; j++) {
ent->attributes[j].name = talloc_steal(ent->attributes, res[i]->elements[j].name);
ent->attributes[j].num_values = 0;
ent->attributes[j].values = NULL;
if (r->attributesonly && (res[i]->elements[j].num_values == 0)) {
continue;
}
ent->attributes[j].num_values = res[i]->elements[j].num_values;
ent->attributes[j].values = talloc_array_p(ent->attributes,
DATA_BLOB, ent->attributes[j].num_values);
ALLOC_CHECK(ent->attributes[j].values);
for (y=0; y < ent->attributes[j].num_values; y++) {
ent->attributes[j].values[y].length = res[i]->elements[j].values[y].length;
ent->attributes[j].values[y].data = talloc_steal(ent->attributes[j].values,
res[i]->elements[j].values[y].data);
}
}
queue_reply:
status = ldapsrv_queue_reply(call, ent_r);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
}
reply:
done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
ALLOC_CHECK(done_r);
if (result == LDAP_SUCCESS) {
if (count > 0) {
DEBUG(10,("sldb_Search: results: [%d]\n",count));
result = LDAP_SUCCESS;
errstr = NULL;
} else if (count == 0) {
DEBUG(10,("sldb_Search: no results\n"));
result = LDAP_NO_SUCH_OBJECT;
errstr = ldb_errstring(samdb->ldb);
} else if (count == -1) {
DEBUG(10,("sldb_Search: error\n"));
result = LDAP_OTHER;
errstr = ldb_errstring(samdb->ldb);
}
}
done = &done_r->msg.r.SearchResultDone;
done->dn = NULL;
done->resultcode = result;
done->errormessage = (errstr?talloc_strdup(done_r,errstr):NULL);
done->referral = NULL;
talloc_free(local_ctx);
return ldapsrv_queue_reply(call, done_r);
}
static NTSTATUS sldb_Add(struct ldapsrv_partition *partition, struct ldapsrv_call *call,
struct ldap_AddRequest *r)
{
void *local_ctx;
struct ldap_dn *dn;
struct ldap_Result *add_result;
struct ldapsrv_reply *add_reply;
int ldb_ret;
struct samdb_context *samdb;
struct ldb_message *msg;
int result = LDAP_SUCCESS;
const char *errstr = NULL;
int i,j;
local_ctx = talloc_named(call, 0, "sldb_Add local memory context");
ALLOC_CHECK(local_ctx);
samdb = samdb_connect(local_ctx);
ALLOC_CHECK(samdb);
dn = ldap_parse_dn(local_ctx, r->dn);
VALID_DN_SYNTAX(dn,1);
DEBUG(10, ("sldb_add: dn: [%s]\n", dn->dn));
msg = talloc_p(local_ctx, struct ldb_message);
ALLOC_CHECK(msg);
msg->dn = dn->dn;
msg->private_data = NULL;
msg->num_elements = 0;
msg->elements = NULL;
if (r->num_attributes > 0) {
msg->num_elements = r->num_attributes;
msg->elements = talloc_array_p(msg, struct ldb_message_element, msg->num_elements);
ALLOC_CHECK(msg->elements);
for (i=0; i < msg->num_elements; i++) {
msg->elements[i].name = discard_const_p(char, r->attributes[i].name);
msg->elements[i].flags = 0;
msg->elements[i].num_values = 0;
msg->elements[i].values = NULL;
if (r->attributes[i].num_values > 0) {
msg->elements[i].num_values = r->attributes[i].num_values;
msg->elements[i].values = talloc_array_p(msg, struct ldb_val, msg->elements[i].num_values);
ALLOC_CHECK(msg->elements[i].values);
for (j=0; j < msg->elements[i].num_values; j++) {
if (!(r->attributes[i].values[j].length > 0)) {
result = LDAP_OTHER;
errstr = "Empty attribute values are not allowed";
goto reply;
}
msg->elements[i].values[j].length = r->attributes[i].values[j].length;
msg->elements[i].values[j].data = r->attributes[i].values[j].data;
}
} else {
result = LDAP_OTHER;
errstr = "No attribute values are not allowed";
goto reply;
}
}
} else {
result = LDAP_OTHER;
errstr = "No attributes are not allowed";
goto reply;
}
reply:
add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
ALLOC_CHECK(add_reply);
if (result == LDAP_SUCCESS) {
ldb_set_alloc(samdb->ldb, talloc_realloc_fn, samdb);
ldb_ret = ldb_add(samdb->ldb, msg);
if (ldb_ret == 0) {
result = LDAP_SUCCESS;
errstr = NULL;
} else {
/* currently we have no way to tell if there was an internal ldb error
* or if the object was not found, return the most probable error
*/
result = LDAP_OPERATIONS_ERROR;
errstr = ldb_errstring(samdb->ldb);
}
}
add_result = &add_reply->msg.r.AddResponse;
add_result->dn = NULL;
add_result->resultcode = result;
add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
add_result->referral = NULL;
talloc_free(local_ctx);
return ldapsrv_queue_reply(call, add_reply);
}
static NTSTATUS sldb_Del(struct ldapsrv_partition *partition, struct ldapsrv_call *call,
struct ldap_DelRequest *r)
{
void *local_ctx;
struct ldap_dn *dn;
struct ldap_Result *del_result;
struct ldapsrv_reply *del_reply;
int ldb_ret;
struct samdb_context *samdb;
const char *errstr = NULL;
int result = LDAP_SUCCESS;
local_ctx = talloc_named(call, 0, "sldb_Del local memory context");
ALLOC_CHECK(local_ctx);
samdb = samdb_connect(local_ctx);
ALLOC_CHECK(samdb);
dn = ldap_parse_dn(local_ctx, r->dn);
VALID_DN_SYNTAX(dn,1);
DEBUG(10, ("sldb_Del: dn: [%s]\n", dn->dn));
reply:
del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
ALLOC_CHECK(del_reply);
if (result == LDAP_SUCCESS) {
ldb_set_alloc(samdb->ldb, talloc_realloc_fn, samdb);
ldb_ret = ldb_delete(samdb->ldb, dn->dn);
if (ldb_ret == 0) {
result = LDAP_SUCCESS;
errstr = NULL;
} else {
/* currently we have no way to tell if there was an internal ldb error
* or if the object was not found, return the most probable error
*/
result = LDAP_NO_SUCH_OBJECT;
errstr = ldb_errstring(samdb->ldb);
}
}
del_result = &del_reply->msg.r.DelResponse;
del_result->dn = NULL;
del_result->resultcode = result;
del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
del_result->referral = NULL;
talloc_free(local_ctx);
return ldapsrv_queue_reply(call, del_reply);
}
static NTSTATUS sldb_Modify(struct ldapsrv_partition *partition, struct ldapsrv_call *call,
struct ldap_ModifyRequest *r)
{
void *local_ctx;
struct ldap_dn *dn;
struct ldap_Result *modify_result;
struct ldapsrv_reply *modify_reply;
int ldb_ret;
struct samdb_context *samdb;
struct ldb_message *msg;
int result = LDAP_SUCCESS;
const char *errstr = NULL;
int i,j;
local_ctx = talloc_named(call, 0, "sldb_Modify local memory context");
ALLOC_CHECK(local_ctx);
samdb = samdb_connect(local_ctx);
ALLOC_CHECK(samdb);
dn = ldap_parse_dn(local_ctx, r->dn);
VALID_DN_SYNTAX(dn,1);
DEBUG(10, ("sldb_modify: dn: [%s]\n", dn->dn));
msg = talloc_p(local_ctx, struct ldb_message);
ALLOC_CHECK(msg);
msg->dn = dn->dn;
msg->private_data = NULL;
msg->num_elements = 0;
msg->elements = NULL;
if (r->num_mods > 0) {
msg->num_elements = r->num_mods;
msg->elements = talloc_array_p(msg, struct ldb_message_element, r->num_mods);
ALLOC_CHECK(msg->elements);
for (i=0; i < msg->num_elements; i++) {
msg->elements[i].name = discard_const_p(char, r->mods[i].attrib.name);
msg->elements[i].num_values = 0;
msg->elements[i].values = NULL;
switch (r->mods[i].type) {
default:
result = LDAP_PROTOCOL_ERROR;
errstr = "Invalid LDAP_MODIFY_* type";
goto reply;
case LDAP_MODIFY_ADD:
msg->elements[i].flags = LDB_FLAG_MOD_ADD;
break;
case LDAP_MODIFY_DELETE:
msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
break;
case LDAP_MODIFY_REPLACE:
msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
break;
}
msg->elements[i].num_values = r->mods[i].attrib.num_values;
if (msg->elements[i].num_values > 0) {
msg->elements[i].values = talloc_array_p(msg, struct ldb_val, msg->elements[i].num_values);
ALLOC_CHECK(msg->elements[i].values);
for (j=0; j < msg->elements[i].num_values; j++) {
if (!(r->mods[i].attrib.values[j].length > 0)) {
result = LDAP_OTHER;
errstr = "Empty attribute values are not allowed";
goto reply;
}
msg->elements[i].values[j].length = r->mods[i].attrib.values[j].length;
msg->elements[i].values[j].data = r->mods[i].attrib.values[j].data;
}
}
}
} else {
result = LDAP_OTHER;
errstr = "No mods are not allowed";
goto reply;
}
reply:
modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
ALLOC_CHECK(modify_reply);
if (result == LDAP_SUCCESS) {
ldb_set_alloc(samdb->ldb, talloc_realloc_fn, samdb);
ldb_ret = ldb_modify(samdb->ldb, msg);
if (ldb_ret == 0) {
result = LDAP_SUCCESS;
errstr = NULL;
} else {
/* currently we have no way to tell if there was an internal ldb error
* or if the object was not found, return the most probable error
*/
result = LDAP_OPERATIONS_ERROR;
errstr = ldb_errstring(samdb->ldb);
}
}
modify_result = &modify_reply->msg.r.AddResponse;
modify_result->dn = NULL;
modify_result->resultcode = result;
modify_result->errormessage = (errstr?talloc_strdup(modify_reply,errstr):NULL);
modify_result->referral = NULL;
talloc_free(local_ctx);
return ldapsrv_queue_reply(call, modify_reply);
}
static NTSTATUS sldb_Compare(struct ldapsrv_partition *partition, struct ldapsrv_call *call,
struct ldap_CompareRequest *r)
{
void *local_ctx;
struct ldap_dn *dn;
struct ldap_Result *compare;
struct ldapsrv_reply *compare_r;
int result = LDAP_SUCCESS;
struct samdb_context *samdb;
struct ldb_message **res;
const char *attrs[1];
const char *errstr = NULL;
const char *filter;
int count;
local_ctx = talloc_named(call, 0, "sldb_Compare local_memory_context");
ALLOC_CHECK(local_ctx);
samdb = samdb_connect(local_ctx);
ALLOC_CHECK(samdb);
dn = ldap_parse_dn(local_ctx, r->dn);
VALID_DN_SYNTAX(dn,1);
DEBUG(10, ("sldb_Compare: dn: [%s]\n", dn->dn));
filter = talloc_asprintf(local_ctx, "(%s=%*s)", r->attribute, r->value.length, r->value.data);
ALLOC_CHECK(filter);
DEBUGADD(10, ("sldb_Compare: attribute: [%s]\n", filter));
attrs[0] = NULL;
reply:
compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
ALLOC_CHECK(compare_r);
if (result == LDAP_SUCCESS) {
ldb_set_alloc(samdb->ldb, talloc_realloc_fn, samdb);
count = ldb_search(samdb->ldb, dn->dn, LDB_SCOPE_BASE, filter, attrs, &res);
if (count == 1) {
DEBUG(10,("sldb_Compare: matched\n"));
result = LDAP_COMPARE_TRUE;
errstr = NULL;
} else if (count == 0) {
DEBUG(10,("sldb_Compare: doesn't matched\n"));
result = LDAP_COMPARE_FALSE;
errstr = NULL;
} else if (count > 1) {
result = LDAP_OTHER;
errstr = "too many objects match";
DEBUG(10,("sldb_Compare: %d results: %s\n", count, errstr));
} else if (count == -1) {
result = LDAP_OTHER;
errstr = ldb_errstring(samdb->ldb);
DEBUG(10,("sldb_Compare: error: %s\n", errstr));
}
}
compare = &compare_r->msg.r.CompareResponse;
compare->dn = NULL;
compare->resultcode = result;
compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
compare->referral = NULL;
talloc_free(local_ctx);
return ldapsrv_queue_reply(call, compare_r);
}
NTSTATUS sldb_ModifyDN(struct ldapsrv_partition *partition, struct ldapsrv_call *call, struct ldap_ModifyDNRequest *r)
{
void *local_ctx;
struct ldap_dn *olddn, *newrdn, *newsuperior;
struct ldap_Result *modifydn;
struct ldapsrv_reply *modifydn_r;
int ldb_ret;
struct samdb_context *samdb;
const char *errstr = NULL;
int result = LDAP_SUCCESS;
const char *newdn;
char *parentdn = NULL;
local_ctx = talloc_named(call, 0, "sldb_ModifyDN local memory context");
ALLOC_CHECK(local_ctx);
samdb = samdb_connect(local_ctx);
ALLOC_CHECK(samdb);
olddn = ldap_parse_dn(local_ctx, r->dn);
VALID_DN_SYNTAX(olddn,2);
newrdn = ldap_parse_dn(local_ctx, r->newrdn);
VALID_DN_SYNTAX(newrdn,1);
DEBUG(10, ("sldb_ModifyDN: olddn: [%s]\n", olddn->dn));
DEBUG(10, ("sldb_ModifyDN: newrdn: [%s]\n", newrdn->dn));
/* we can't handle the rename if we should not remove the old dn */
if (!r->deleteolddn) {
result = LDAP_UNWILLING_TO_PERFORM;
errstr = "Old RDN must be deleted";
goto reply;
}
if (newrdn->comp_num > 1) {
result = LDAP_NAMING_VIOLATION;
errstr = "Error new RDN invalid";
goto reply;
}
if (r->newsuperior) {
newsuperior = ldap_parse_dn(local_ctx, r->newsuperior);
VALID_DN_SYNTAX(newsuperior,0);
DEBUG(10, ("sldb_ModifyDN: newsuperior: [%s]\n", newsuperior->dn));
if (newsuperior->comp_num < 1) {
result = LDAP_AFFECTS_MULTIPLE_DSAS;
errstr = "Error new Superior DN invalid";
goto reply;
}
parentdn = newsuperior->dn;
}
if (!parentdn) {
int i;
parentdn = talloc_strdup(local_ctx, olddn->components[1]->component);
ALLOC_CHECK(parentdn);
for(i=2; i < olddn->comp_num; i++) {
char *old = parentdn;
parentdn = talloc_asprintf(local_ctx, "%s,%s", old, olddn->components[i]->component);
ALLOC_CHECK(parentdn);
talloc_free(old);
}
}
newdn = talloc_asprintf(local_ctx, "%s,%s", newrdn->dn, parentdn);
ALLOC_CHECK(newdn);
reply:
modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
ALLOC_CHECK(modifydn_r);
if (result == LDAP_SUCCESS) {
ldb_set_alloc(samdb->ldb, talloc_realloc_fn, samdb);
ldb_ret = ldb_rename(samdb->ldb, olddn->dn, newdn);
if (ldb_ret == 0) {
result = LDAP_SUCCESS;
errstr = NULL;
} else {
/* currently we have no way to tell if there was an internal ldb error
* or if the object was not found, return the most probable error
*/
result = LDAP_NO_SUCH_OBJECT;
errstr = ldb_errstring(samdb->ldb);
}
}
modifydn = &modifydn_r->msg.r.ModifyDNResponse;
modifydn->dn = NULL;
modifydn->resultcode = result;
modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
modifydn->referral = NULL;
talloc_free(local_ctx);
return ldapsrv_queue_reply(call, modifydn_r);
}
static const struct ldapsrv_partition_ops sldb_ops = {
.Search = sldb_Search,
.Add = sldb_Add,
.Del = sldb_Del,
.Modify = sldb_Modify,
.Compare = sldb_Compare,
.ModifyDN = sldb_ModifyDN
};
const struct ldapsrv_partition_ops *ldapsrv_get_sldb_partition_ops(void)
{
return &sldb_ops;
}