/*
ldb database library
Copyright (C) Derrell Lipman 2005
Copyright (C) Simo Sorce 2005-2006
** NOTE! The following LGPL license applies to the ldb
** library. This does NOT imply that all of Samba is released
** under the LGPL
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see .
*/
/*
* Name: ldb
*
* Component: ldb sqlite3 backend
*
* Description: core files for SQLITE3 backend
*
* Author: Derrell Lipman (based on Andrew Tridgell's LDAP backend)
*/
#include "ldb_includes.h"
#include
struct lsqlite3_private {
int trans_count;
char **options;
sqlite3 *sqlite;
};
struct lsql_context {
struct ldb_module *module;
struct ldb_request *req;
/* search stuff */
long long current_eid;
const char * const * attrs;
struct ldb_reply *ares;
};
/*
* Macros used throughout
*/
#ifndef FALSE
# define FALSE (0)
# define TRUE (! FALSE)
#endif
#define RESULT_ATTR_TABLE "temp_result_attrs"
//#define TEMPTAB /* for testing, create non-temporary table */
#define TEMPTAB "TEMPORARY"
/*
* Static variables
*/
sqlite3_stmt * stmtGetEID = NULL;
static char *lsqlite3_tprintf(TALLOC_CTX *mem_ctx, const char *fmt, ...)
{
char *str, *ret;
va_list ap;
va_start(ap, fmt);
str = sqlite3_vmprintf(fmt, ap);
va_end(ap);
if (str == NULL) return NULL;
ret = talloc_strdup(mem_ctx, str);
if (ret == NULL) {
sqlite3_free(str);
return NULL;
}
sqlite3_free(str);
return ret;
}
static char base160tab[161] = {
48 ,49 ,50 ,51 ,52 ,53 ,54 ,55 ,56 ,57 , /* 0-9 */
58 ,59 ,65 ,66 ,67 ,68 ,69 ,70 ,71 ,72 , /* : ; A-H */
73 ,74 ,75 ,76 ,77 ,78 ,79 ,80 ,81 ,82 , /* I-R */
83 ,84 ,85 ,86 ,87 ,88 ,89 ,90 ,97 ,98 , /* S-Z , a-b */
99 ,100,101,102,103,104,105,106,107,108, /* c-l */
109,110,111,112,113,114,115,116,117,118, /* m-v */
119,120,121,122,160,161,162,163,164,165, /* w-z, latin1 */
166,167,168,169,170,171,172,173,174,175, /* latin1 */
176,177,178,179,180,181,182,183,184,185, /* latin1 */
186,187,188,189,190,191,192,193,194,195, /* latin1 */
196,197,198,199,200,201,202,203,204,205, /* latin1 */
206,207,208,209,210,211,212,213,214,215, /* latin1 */
216,217,218,219,220,221,222,223,224,225, /* latin1 */
226,227,228,229,230,231,232,233,234,235, /* latin1 */
236,237,238,239,240,241,242,243,244,245, /* latin1 */
246,247,248,249,250,251,252,253,254,255, /* latin1 */
'\0'
};
/*
* base160()
*
* Convert an unsigned long integer into a base160 representation of the
* number.
*
* Parameters:
* val --
* value to be converted
*
* result --
* character array, 5 bytes long, into which the base160 representation
* will be placed. The result will be a four-digit representation of the
* number (with leading zeros prepended as necessary), and null
* terminated.
*
* Returns:
* Nothing
*/
static void
base160_sql(sqlite3_context * hContext,
int argc,
sqlite3_value ** argv)
{
int i;
long long val;
char result[5];
val = sqlite3_value_int64(argv[0]);
for (i = 3; i >= 0; i--) {
result[i] = base160tab[val % 160];
val /= 160;
}
result[4] = '\0';
sqlite3_result_text(hContext, result, -1, SQLITE_TRANSIENT);
}
/*
* base160next_sql()
*
* This function enhances sqlite by adding a "base160_next()" function which is
* accessible via queries.
*
* Retrieve the next-greater number in the base160 sequence for the terminal
* tree node (the last four digits). Only one tree level (four digits) is
* operated on.
*
* Input:
* A character string: either an empty string (in which case no operation is
* performed), or a string of base160 digits with a length of a multiple of
* four digits.
*
* Output:
* Upon return, the trailing four digits (one tree level) will have been
* incremented by 1.
*/
static void
base160next_sql(sqlite3_context * hContext,
int argc,
sqlite3_value ** argv)
{
int i;
int len;
char * pTab;
char * pBase160 = strdup((const char *)sqlite3_value_text(argv[0]));
char * pStart = pBase160;
/*
* We need a minimum of four digits, and we will always get a multiple
* of four digits.
*/
if (pBase160 != NULL &&
(len = strlen(pBase160)) >= 4 &&
len % 4 == 0) {
if (pBase160 == NULL) {
sqlite3_result_null(hContext);
return;
}
pBase160 += strlen(pBase160) - 1;
/* We only carry through four digits: one level in the tree */
for (i = 0; i < 4; i++) {
/* What base160 value does this digit have? */
pTab = strchr(base160tab, *pBase160);
/* Is there a carry? */
if (pTab < base160tab + sizeof(base160tab) - 1) {
/*
* Nope. Just increment this value and we're
* done.
*/
*pBase160 = *++pTab;
break;
} else {
/*
* There's a carry. This value gets
* base160tab[0], we decrement the buffer
* pointer to get the next higher-order digit,
* and continue in the loop.
*/
*pBase160-- = base160tab[0];
}
}
sqlite3_result_text(hContext,
pStart,
strlen(pStart),
free);
} else {
sqlite3_result_value(hContext, argv[0]);
if (pBase160 != NULL) {
free(pBase160);
}
}
}
static char *parsetree_to_sql(struct ldb_module *module,
void *mem_ctx,
const struct ldb_parse_tree *t)
{
const struct ldb_schema_attribute *a;
struct ldb_val value, subval;
char *wild_card_string;
char *child, *tmp;
char *ret = NULL;
char *attr;
int i;
switch(t->operation) {
case LDB_OP_AND:
tmp = parsetree_to_sql(module, mem_ctx, t->u.list.elements[0]);
if (tmp == NULL) return NULL;
for (i = 1; i < t->u.list.num_elements; i++) {
child = parsetree_to_sql(module, mem_ctx, t->u.list.elements[i]);
if (child == NULL) return NULL;
tmp = talloc_asprintf_append(tmp, " INTERSECT %s ", child);
if (tmp == NULL) return NULL;
}
ret = talloc_asprintf(mem_ctx, "SELECT * FROM ( %s )\n", tmp);
return ret;
case LDB_OP_OR:
tmp = parsetree_to_sql(module, mem_ctx, t->u.list.elements[0]);
if (tmp == NULL) return NULL;
for (i = 1; i < t->u.list.num_elements; i++) {
child = parsetree_to_sql(module, mem_ctx, t->u.list.elements[i]);
if (child == NULL) return NULL;
tmp = talloc_asprintf_append(tmp, " UNION %s ", child);
if (tmp == NULL) return NULL;
}
return talloc_asprintf(mem_ctx, "SELECT * FROM ( %s ) ", tmp);
case LDB_OP_NOT:
child = parsetree_to_sql(module, mem_ctx, t->u.isnot.child);
if (child == NULL) return NULL;
return talloc_asprintf(mem_ctx,
"SELECT eid FROM ldb_entry "
"WHERE eid NOT IN ( %s ) ", child);
case LDB_OP_EQUALITY:
/*
* For simple searches, we want to retrieve the list of EIDs that
* match the criteria.
*/
attr = ldb_attr_casefold(mem_ctx, t->u.equality.attr);
if (attr == NULL) return NULL;
a = ldb_schema_attribute_by_name(module->ldb, attr);
/* Get a canonicalised copy of the data */
a->syntax->canonicalise_fn(module->ldb, mem_ctx, &(t->u.equality.value), &value);
if (value.data == NULL) {
return NULL;
}
if (strcasecmp(t->u.equality.attr, "dn") == 0) {
/* DN query is a special ldb case */
const char *cdn = ldb_dn_get_casefold(
ldb_dn_new(mem_ctx, module->ldb,
(const char *)value.data));
return lsqlite3_tprintf(mem_ctx,
"SELECT eid FROM ldb_entry "
"WHERE norm_dn = '%q'", cdn);
} else {
/* A normal query. */
return lsqlite3_tprintf(mem_ctx,
"SELECT eid FROM ldb_attribute_values "
"WHERE norm_attr_name = '%q' "
"AND norm_attr_value = '%q'",
attr,
value.data);
}
case LDB_OP_SUBSTRING:
wild_card_string = talloc_strdup(mem_ctx,
(t->u.substring.start_with_wildcard)?"*":"");
if (wild_card_string == NULL) return NULL;
for (i = 0; t->u.substring.chunks[i]; i++) {
wild_card_string = talloc_asprintf_append(wild_card_string, "%s*",
t->u.substring.chunks[i]->data);
if (wild_card_string == NULL) return NULL;
}
if ( ! t->u.substring.end_with_wildcard ) {
/* remove last wildcard */
wild_card_string[strlen(wild_card_string) - 1] = '\0';
}
attr = ldb_attr_casefold(mem_ctx, t->u.substring.attr);
if (attr == NULL) return NULL;
a = ldb_schema_attribute_by_name(module->ldb, attr);
subval.data = (void *)wild_card_string;
subval.length = strlen(wild_card_string) + 1;
/* Get a canonicalised copy of the data */
a->syntax->canonicalise_fn(module->ldb, mem_ctx, &(subval), &value);
if (value.data == NULL) {
return NULL;
}
return lsqlite3_tprintf(mem_ctx,
"SELECT eid FROM ldb_attribute_values "
"WHERE norm_attr_name = '%q' "
"AND norm_attr_value GLOB '%q'",
attr,
value.data);
case LDB_OP_GREATER:
attr = ldb_attr_casefold(mem_ctx, t->u.equality.attr);
if (attr == NULL) return NULL;
a = ldb_schema_attribute_by_name(module->ldb, attr);
/* Get a canonicalised copy of the data */
a->syntax->canonicalise_fn(module->ldb, mem_ctx, &(t->u.equality.value), &value);
if (value.data == NULL) {
return NULL;
}
return lsqlite3_tprintf(mem_ctx,
"SELECT eid FROM ldb_attribute_values "
"WHERE norm_attr_name = '%q' "
"AND ldap_compare(norm_attr_value, '>=', '%q', '%q') ",
attr,
value.data,
attr);
case LDB_OP_LESS:
attr = ldb_attr_casefold(mem_ctx, t->u.equality.attr);
if (attr == NULL) return NULL;
a = ldb_schema_attribute_by_name(module->ldb, attr);
/* Get a canonicalised copy of the data */
a->syntax->canonicalise_fn(module->ldb, mem_ctx, &(t->u.equality.value), &value);
if (value.data == NULL) {
return NULL;
}
return lsqlite3_tprintf(mem_ctx,
"SELECT eid FROM ldb_attribute_values "
"WHERE norm_attr_name = '%q' "
"AND ldap_compare(norm_attr_value, '<=', '%q', '%q') ",
attr,
value.data,
attr);
case LDB_OP_PRESENT:
if (strcasecmp(t->u.present.attr, "dn") == 0) {
return talloc_strdup(mem_ctx, "SELECT eid FROM ldb_entry");
}
attr = ldb_attr_casefold(mem_ctx, t->u.present.attr);
if (attr == NULL) return NULL;
return lsqlite3_tprintf(mem_ctx,
"SELECT eid FROM ldb_attribute_values "
"WHERE norm_attr_name = '%q' ",
attr);
case LDB_OP_APPROX:
attr = ldb_attr_casefold(mem_ctx, t->u.equality.attr);
if (attr == NULL) return NULL;
a = ldb_schema_attribute_by_name(module->ldb, attr);
/* Get a canonicalised copy of the data */
a->syntax->canonicalise_fn(module->ldb, mem_ctx, &(t->u.equality.value), &value);
if (value.data == NULL) {
return NULL;
}
return lsqlite3_tprintf(mem_ctx,
"SELECT eid FROM ldb_attribute_values "
"WHERE norm_attr_name = '%q' "
"AND ldap_compare(norm_attr_value, '~%', 'q', '%q') ",
attr,
value.data,
attr);
case LDB_OP_EXTENDED:
#warning "work out how to handle bitops"
return NULL;
default:
break;
};
/* should never occur */
abort();
return NULL;
}
/*
* query_int()
*
* This function is used for the common case of queries that return a single
* integer value.
*
* NOTE: If more than one value is returned by the query, all but the first
* one will be ignored.
*/
static int
query_int(const struct lsqlite3_private * lsqlite3,
long long * pRet,
const char * pSql,
...)
{
int ret;
int bLoop;
char * p;
sqlite3_stmt * pStmt;
va_list args;
/* Begin access to variable argument list */
va_start(args, pSql);
/* Format the query */
if ((p = sqlite3_vmprintf(pSql, args)) == NULL) {
return SQLITE_NOMEM;
}
/*
* Prepare and execute the SQL statement. Loop allows retrying on
* certain errors, e.g. SQLITE_SCHEMA occurs if the schema changes,
* requiring retrying the operation.
*/
for (bLoop = TRUE; bLoop; ) {
/* Compile the SQL statement into sqlite virtual machine */
if ((ret = sqlite3_prepare(lsqlite3->sqlite,
p,
-1,
&pStmt,
NULL)) == SQLITE_SCHEMA) {
if (stmtGetEID != NULL) {
sqlite3_finalize(stmtGetEID);
stmtGetEID = NULL;
}
continue;
} else if (ret != SQLITE_OK) {
break;
}
/* One row expected */
if ((ret = sqlite3_step(pStmt)) == SQLITE_SCHEMA) {
if (stmtGetEID != NULL) {
sqlite3_finalize(stmtGetEID);
stmtGetEID = NULL;
}
(void) sqlite3_finalize(pStmt);
continue;
} else if (ret != SQLITE_ROW) {
(void) sqlite3_finalize(pStmt);
break;
}
/* Get the value to be returned */
*pRet = sqlite3_column_int64(pStmt, 0);
/* Free the virtual machine */
if ((ret = sqlite3_finalize(pStmt)) == SQLITE_SCHEMA) {
if (stmtGetEID != NULL) {
sqlite3_finalize(stmtGetEID);
stmtGetEID = NULL;
}
continue;
} else if (ret != SQLITE_OK) {
(void) sqlite3_finalize(pStmt);
break;
}
/*
* Normal condition is only one time through loop. Loop is
* rerun in error conditions, via "continue", above.
*/
bLoop = FALSE;
}
/* All done with variable argument list */
va_end(args);
/* Free the memory we allocated for our query string */
sqlite3_free(p);
return ret;
}
/*
* This is a bad hack to support ldap style comparisons whithin sqlite.
* val is the attribute in the row currently under test
* func is the desired test "<=" ">=" "~" ":"
* cmp is the value to compare against (eg: "test")
* attr is the attribute name the value of which we want to test
*/
static void lsqlite3_compare(sqlite3_context *ctx, int argc,
sqlite3_value **argv)
{
struct ldb_context *ldb = (struct ldb_context *)sqlite3_user_data(ctx);
const char *val = (const char *)sqlite3_value_text(argv[0]);
const char *func = (const char *)sqlite3_value_text(argv[1]);
const char *cmp = (const char *)sqlite3_value_text(argv[2]);
const char *attr = (const char *)sqlite3_value_text(argv[3]);
const struct ldb_schema_attribute *a;
struct ldb_val valX;
struct ldb_val valY;
int ret;
switch (func[0]) {
/* greater */
case '>': /* >= */
a = ldb_schema_attribute_by_name(ldb, attr);
valX.data = (void *)cmp;
valX.length = strlen(cmp);
valY.data = (void *)val;
valY.length = strlen(val);
ret = a->syntax->comparison_fn(ldb, ldb, &valY, &valX);
if (ret >= 0)
sqlite3_result_int(ctx, 1);
else
sqlite3_result_int(ctx, 0);
return;
/* lesser */
case '<': /* <= */
a = ldb_schema_attribute_by_name(ldb, attr);
valX.data = (void *)cmp;
valX.length = strlen(cmp);
valY.data = (void *)val;
valY.length = strlen(val);
ret = a->syntax->comparison_fn(ldb, ldb, &valY, &valX);
if (ret <= 0)
sqlite3_result_int(ctx, 1);
else
sqlite3_result_int(ctx, 0);
return;
/* approx */
case '~':
/* TODO */
sqlite3_result_int(ctx, 0);
return;
/* bitops */
case ':':
/* TODO */
sqlite3_result_int(ctx, 0);
return;
default:
break;
}
sqlite3_result_error(ctx, "Value must start with a special operation char (<>~:)!", -1);
return;
}
/* rename a record */
static int lsqlite3_safe_rollback(sqlite3 *sqlite)
{
char *errmsg;
int ret;
/* execute */
ret = sqlite3_exec(sqlite, "ROLLBACK;", NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
printf("lsqlite3_safe_rollback: Error: %s\n", errmsg);
free(errmsg);
}
return -1;
}
return 0;
}
/* return an eid as result */
static int lsqlite3_eid_callback(void *result, int col_num, char **cols, char **names)
{
long long *eid = (long long *)result;
if (col_num != 1) return SQLITE_ABORT;
if (strcasecmp(names[0], "eid") != 0) return SQLITE_ABORT;
*eid = atoll(cols[0]);
return SQLITE_OK;
}
/*
* add a single set of ldap message values to a ldb_message
*/
static int lsqlite3_search_callback(void *result, int col_num, char **cols, char **names)
{
struct ldb_handle *handle = talloc_get_type(result, struct ldb_handle);
struct lsql_context *ac = talloc_get_type(handle->private_data, struct lsql_context);
struct ldb_message *msg;
long long eid;
int i;
/* eid, dn, attr_name, attr_value */
if (col_num != 4)
return SQLITE_ABORT;
eid = atoll(cols[0]);
if (eid != ac->current_eid) { /* here begin a new entry */
/* call the async callback for the last entry
* except the first time */
if (ac->current_eid != 0) {
ac->ares->message = ldb_msg_canonicalize(ac->module->ldb, ac->ares->message);
if (ac->ares->message == NULL)
return SQLITE_ABORT;
handle->status = ac->callback(ac->module->ldb, ac->context, ac->ares);
if (handle->status != LDB_SUCCESS)
return SQLITE_ABORT;
}
/* start over */
ac->ares = talloc_zero(ac, struct ldb_reply);
if (!ac->ares)
return SQLITE_ABORT;
ac->ares->message = ldb_msg_new(ac->ares);
if (!ac->ares->message)
return SQLITE_ABORT;
ac->ares->type = LDB_REPLY_ENTRY;
ac->current_eid = eid;
}
msg = ac->ares->message;
if (msg->dn == NULL) {
msg->dn = ldb_dn_new(msg, ac->module->ldb, cols[1]);
if (msg->dn == NULL)
return SQLITE_ABORT;
}
if (ac->attrs) {
int found = 0;
for (i = 0; ac->attrs[i]; i++) {
if (strcasecmp(cols[2], ac->attrs[i]) == 0) {
found = 1;
break;
}
}
if (!found) return SQLITE_OK;
}
if (ldb_msg_add_string(msg, cols[2], cols[3]) != 0) {
return SQLITE_ABORT;
}
return SQLITE_OK;
}
/*
* lsqlite3_get_eid()
* lsqlite3_get_eid_ndn()
*
* These functions are used for the very common case of retrieving an EID value
* given a (normalized) DN.
*/
static long long lsqlite3_get_eid_ndn(sqlite3 *sqlite, void *mem_ctx, const char *norm_dn)
{
char *errmsg;
char *query;
long long eid = -1;
long long ret;
/* get object eid */
query = lsqlite3_tprintf(mem_ctx, "SELECT eid "
"FROM ldb_entry "
"WHERE norm_dn = '%q';", norm_dn);
if (query == NULL) return -1;
ret = sqlite3_exec(sqlite, query, lsqlite3_eid_callback, &eid, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
printf("lsqlite3_get_eid: Fatal Error: %s\n", errmsg);
free(errmsg);
}
return -1;
}
return eid;
}
static long long lsqlite3_get_eid(struct ldb_module *module, struct ldb_dn *dn)
{
TALLOC_CTX *local_ctx;
struct lsqlite3_private *lsqlite3 = module->private_data;
long long eid = -1;
char *cdn;
/* ignore ltdb specials */
if (ldb_dn_is_special(dn)) {
return -1;
}
/* create a local ctx */
local_ctx = talloc_named(lsqlite3, 0, "lsqlite3_get_eid local context");
if (local_ctx == NULL) {
return -1;
}
cdn = ldb_dn_alloc_casefold(local_ctx, dn);
if (!cdn) goto done;
eid = lsqlite3_get_eid_ndn(lsqlite3->sqlite, local_ctx, cdn);
done:
talloc_free(local_ctx);
return eid;
}
/*
* Interface functions referenced by lsqlite3_ops
*/
/* search for matching records, by tree */
int lsql_search(struct ldb_module *module, struct ldb_request *req)
{
struct lsqlite3_private *lsqlite3 = talloc_get_type(module->private_data, struct lsqlite3_private);
struct lsql_context *lsql_ac;
char *norm_basedn;
char *sqlfilter;
char *errmsg;
char *query = NULL;
int ret;
lsql_ac = talloc_get_type(req->handle->private_data, struct lsql_context);
if ((( ! ldb_dn_is_valid(req->op.search.base)) || ldb_dn_is_null(req->op.search.base)) &&
(req->op.search.scope == LDB_SCOPE_BASE || req->op.search.scope == LDB_SCOPE_ONELEVEL))
return LDB_ERR_OPERATIONS_ERROR;
if (req->op.search.base) {
norm_basedn = ldb_dn_alloc_casefold(lsql_ac, req->op.search.base);
if (norm_basedn == NULL) {
ret = LDB_ERR_INVALID_DN_SYNTAX;
goto failed;
}
} else norm_basedn = talloc_strdup(lsql_ac, "");
/* Convert filter into a series of SQL conditions (constraints) */
sqlfilter = parsetree_to_sql(module, lsql_ac, req->op.search.tree);
switch(req->op.search.scope) {
case LDB_SCOPE_DEFAULT:
case LDB_SCOPE_SUBTREE:
if (*norm_basedn != '\0') {
query = lsqlite3_tprintf(lsql_ac,
"SELECT entry.eid,\n"
" entry.dn,\n"
" av.attr_name,\n"
" av.attr_value\n"
" FROM ldb_entry AS entry\n"
" LEFT OUTER JOIN ldb_attribute_values AS av\n"
" ON av.eid = entry.eid\n"
" WHERE entry.eid IN\n"
" (SELECT DISTINCT ldb_entry.eid\n"
" FROM ldb_entry\n"
" WHERE (ldb_entry.norm_dn GLOB('*,%q')\n"
" OR ldb_entry.norm_dn = '%q')\n"
" AND ldb_entry.eid IN\n"
" (%s)\n"
" )\n"
" ORDER BY entry.eid ASC;",
norm_basedn,
norm_basedn,
sqlfilter);
} else {
query = lsqlite3_tprintf(lsql_ac,
"SELECT entry.eid,\n"
" entry.dn,\n"
" av.attr_name,\n"
" av.attr_value\n"
" FROM ldb_entry AS entry\n"
" LEFT OUTER JOIN ldb_attribute_values AS av\n"
" ON av.eid = entry.eid\n"
" WHERE entry.eid IN\n"
" (SELECT DISTINCT ldb_entry.eid\n"
" FROM ldb_entry\n"
" WHERE ldb_entry.eid IN\n"
" (%s)\n"
" )\n"
" ORDER BY entry.eid ASC;",
sqlfilter);
}
break;
case LDB_SCOPE_BASE:
query = lsqlite3_tprintf(lsql_ac,
"SELECT entry.eid,\n"
" entry.dn,\n"
" av.attr_name,\n"
" av.attr_value\n"
" FROM ldb_entry AS entry\n"
" LEFT OUTER JOIN ldb_attribute_values AS av\n"
" ON av.eid = entry.eid\n"
" WHERE entry.eid IN\n"
" (SELECT DISTINCT ldb_entry.eid\n"
" FROM ldb_entry\n"
" WHERE ldb_entry.norm_dn = '%q'\n"
" AND ldb_entry.eid IN\n"
" (%s)\n"
" )\n"
" ORDER BY entry.eid ASC;",
norm_basedn,
sqlfilter);
break;
case LDB_SCOPE_ONELEVEL:
query = lsqlite3_tprintf(lsql_ac,
"SELECT entry.eid,\n"
" entry.dn,\n"
" av.attr_name,\n"
" av.attr_value\n"
" FROM ldb_entry AS entry\n"
" LEFT OUTER JOIN ldb_attribute_values AS av\n"
" ON av.eid = entry.eid\n"
" WHERE entry.eid IN\n"
" (SELECT DISTINCT ldb_entry.eid\n"
" FROM ldb_entry\n"
" WHERE norm_dn GLOB('*,%q')\n"
" AND NOT norm_dn GLOB('*,*,%q')\n"
" AND ldb_entry.eid IN\n(%s)\n"
" )\n"
" ORDER BY entry.eid ASC;",
norm_basedn,
norm_basedn,
sqlfilter);
break;
}
if (query == NULL) {
goto failed;
}
/* * /
printf ("%s\n", query);
/ * */
lsql_ac->current_eid = 0;
lsql_ac->attrs = req->op.search.attrs;
lsql_ac->ares = NULL;
req->handle->state = LDB_ASYNC_PENDING;
ret = sqlite3_exec(lsqlite3->sqlite, query, lsqlite3_search_callback, req->handle, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
ldb_set_errstring(module->ldb, errmsg);
free(errmsg);
}
goto failed;
}
/* complete the last message if any */
if (lsql_ac->ares) {
lsql_ac->ares->message = ldb_msg_canonicalize(module->ldb, lsql_ac->ares->message);
if (lsql_ac->ares->message == NULL)
goto failed;
req->handle->status = lsql_ac->callback(module->ldb, lsql_ac->context, lsql_ac->ares);
if (req->handle->status != LDB_SUCCESS)
goto failed;
}
req->handle->state = LDB_ASYNC_DONE;
return LDB_SUCCESS;
failed:
return LDB_ERR_OPERATIONS_ERROR;
}
/* add a record */
static int lsql_add(struct ldb_module *module, struct ldb_request *req)
{
struct lsqlite3_private *lsqlite3 = talloc_get_type(module->private_data, struct lsqlite3_private);
struct lsql_context *lsql_ac;
struct ldb_message *msg = req->op.add.message;
long long eid;
char *dn, *ndn;
char *errmsg;
char *query;
int i;
int ret = LDB_SUCCESS;
lsql_ac = talloc_get_type(req->handle->private_data, struct lsql_context);
req->handle->state = LDB_ASYNC_DONE;
req->handle->status = LDB_SUCCESS;
/* See if this is an ltdb special */
if (ldb_dn_is_special(msg->dn)) {
/*
struct ldb_dn *c;
c = ldb_dn_new(local_ctx, module->ldb, "@INDEXLIST");
if (ldb_dn_compare(module->ldb, msg->dn, c) == 0) {
#warning "should we handle indexes somehow ?"
ret = LDB_ERR_UNWILLING_TO_PERFORM;
goto done;
}
*/
/* Others return an error */
ret = LDB_ERR_UNWILLING_TO_PERFORM;
goto done;
}
/* create linearized and normalized dns */
dn = ldb_dn_alloc_linearized(lsql_ac, msg->dn);
ndn = ldb_dn_alloc_casefold(lsql_ac, msg->dn);
if (dn == NULL || ndn == NULL) {
ret = LDB_ERR_OTHER;
goto done;
}
query = lsqlite3_tprintf(lsql_ac,
/* Add new entry */
"INSERT OR ABORT INTO ldb_entry "
"('dn', 'norm_dn') "
"VALUES ('%q', '%q');",
dn, ndn);
if (query == NULL) {
ret = LDB_ERR_OTHER;
goto done;
}
ret = sqlite3_exec(lsqlite3->sqlite, query, NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
ldb_set_errstring(module->ldb, errmsg);
free(errmsg);
}
ret = LDB_ERR_OTHER;
goto done;
}
eid = lsqlite3_get_eid_ndn(lsqlite3->sqlite, lsql_ac, ndn);
if (eid == -1) {
ret = LDB_ERR_OTHER;
goto done;
}
for (i = 0; i < msg->num_elements; i++) {
const struct ldb_message_element *el = &msg->elements[i];
const struct ldb_schema_attribute *a;
char *attr;
int j;
/* Get a case-folded copy of the attribute name */
attr = ldb_attr_casefold(lsql_ac, el->name);
if (attr == NULL) {
ret = LDB_ERR_OTHER;
goto done;
}
a = ldb_schema_attribute_by_name(module->ldb, el->name);
/* For each value of the specified attribute name... */
for (j = 0; j < el->num_values; j++) {
struct ldb_val value;
char *insert;
/* Get a canonicalised copy of the data */
a->syntax->canonicalise_fn(module->ldb, lsql_ac, &(el->values[j]), &value);
if (value.data == NULL) {
ret = LDB_ERR_OTHER;
goto done;
}
insert = lsqlite3_tprintf(lsql_ac,
"INSERT OR ROLLBACK INTO ldb_attribute_values "
"('eid', 'attr_name', 'norm_attr_name',"
" 'attr_value', 'norm_attr_value') "
"VALUES ('%lld', '%q', '%q', '%q', '%q');",
eid, el->name, attr,
el->values[j].data, value.data);
if (insert == NULL) {
ret = LDB_ERR_OTHER;
goto done;
}
ret = sqlite3_exec(lsqlite3->sqlite, insert, NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
ldb_set_errstring(module->ldb, errmsg);
free(errmsg);
}
ret = LDB_ERR_OTHER;
goto done;
}
}
}
if (lsql_ac->callback) {
req->handle->status = lsql_ac->callback(module->ldb, lsql_ac->context, NULL);
}
done:
req->handle->state = LDB_ASYNC_DONE;
return ret;
}
/* modify a record */
static int lsql_modify(struct ldb_module *module, struct ldb_request *req)
{
struct lsqlite3_private *lsqlite3 = talloc_get_type(module->private_data, struct lsqlite3_private);
struct lsql_context *lsql_ac;
struct ldb_message *msg = req->op.mod.message;
long long eid;
char *errmsg;
int i;
int ret = LDB_SUCCESS;
lsql_ac = talloc_get_type(req->handle->private_data, struct lsql_context);
req->handle->state = LDB_ASYNC_DONE;
req->handle->status = LDB_SUCCESS;
/* See if this is an ltdb special */
if (ldb_dn_is_special(msg->dn)) {
/* Others return an error */
ret = LDB_ERR_UNWILLING_TO_PERFORM;
goto done;
}
eid = lsqlite3_get_eid(module, msg->dn);
if (eid == -1) {
ret = LDB_ERR_OTHER;
goto done;
}
for (i = 0; i < msg->num_elements; i++) {
const struct ldb_message_element *el = &msg->elements[i];
const struct ldb_schema_attribute *a;
int flags = el->flags & LDB_FLAG_MOD_MASK;
char *attr;
char *mod;
int j;
/* Get a case-folded copy of the attribute name */
attr = ldb_attr_casefold(lsql_ac, el->name);
if (attr == NULL) {
ret = LDB_ERR_OTHER;
goto done;
}
a = ldb_schema_attribute_by_name(module->ldb, el->name);
switch (flags) {
case LDB_FLAG_MOD_REPLACE:
/* remove all attributes before adding the replacements */
mod = lsqlite3_tprintf(lsql_ac,
"DELETE FROM ldb_attribute_values "
"WHERE eid = '%lld' "
"AND norm_attr_name = '%q';",
eid, attr);
if (mod == NULL) {
ret = LDB_ERR_OTHER;
goto done;
}
ret = sqlite3_exec(lsqlite3->sqlite, mod, NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
ldb_set_errstring(module->ldb, errmsg);
free(errmsg);
}
ret = LDB_ERR_OTHER;
goto done;
}
/* MISSING break is INTENTIONAL */
case LDB_FLAG_MOD_ADD:
#warning "We should throw an error if no value is provided!"
/* For each value of the specified attribute name... */
for (j = 0; j < el->num_values; j++) {
struct ldb_val value;
/* Get a canonicalised copy of the data */
a->syntax->canonicalise_fn(module->ldb, lsql_ac, &(el->values[j]), &value);
if (value.data == NULL) {
ret = LDB_ERR_OTHER;
goto done;
}
mod = lsqlite3_tprintf(lsql_ac,
"INSERT OR ROLLBACK INTO ldb_attribute_values "
"('eid', 'attr_name', 'norm_attr_name',"
" 'attr_value', 'norm_attr_value') "
"VALUES ('%lld', '%q', '%q', '%q', '%q');",
eid, el->name, attr,
el->values[j].data, value.data);
if (mod == NULL) {
ret = LDB_ERR_OTHER;
goto done;
}
ret = sqlite3_exec(lsqlite3->sqlite, mod, NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
ldb_set_errstring(module->ldb, errmsg);
free(errmsg);
}
ret = LDB_ERR_OTHER;
goto done;
}
}
break;
case LDB_FLAG_MOD_DELETE:
#warning "We should throw an error if the attribute we are trying to delete does not exist!"
if (el->num_values == 0) {
mod = lsqlite3_tprintf(lsql_ac,
"DELETE FROM ldb_attribute_values "
"WHERE eid = '%lld' "
"AND norm_attr_name = '%q';",
eid, attr);
if (mod == NULL) {
ret = LDB_ERR_OTHER;
goto done;
}
ret = sqlite3_exec(lsqlite3->sqlite, mod, NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
ldb_set_errstring(module->ldb, errmsg);
free(errmsg);
}
ret = LDB_ERR_OTHER;
goto done;
}
}
/* For each value of the specified attribute name... */
for (j = 0; j < el->num_values; j++) {
struct ldb_val value;
/* Get a canonicalised copy of the data */
a->syntax->canonicalise_fn(module->ldb, lsql_ac, &(el->values[j]), &value);
if (value.data == NULL) {
ret = LDB_ERR_OTHER;
goto done;
}
mod = lsqlite3_tprintf(lsql_ac,
"DELETE FROM ldb_attribute_values "
"WHERE eid = '%lld' "
"AND norm_attr_name = '%q' "
"AND norm_attr_value = '%q';",
eid, attr, value.data);
if (mod == NULL) {
ret = LDB_ERR_OTHER;
goto done;
}
ret = sqlite3_exec(lsqlite3->sqlite, mod, NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
ldb_set_errstring(module->ldb, errmsg);
free(errmsg);
}
ret = LDB_ERR_OTHER;
goto done;
}
}
break;
}
}
if (lsql_ac->callback) {
req->handle->status = lsql_ac->callback(module->ldb, lsql_ac->context, NULL);
}
done:
req->handle->state = LDB_ASYNC_DONE;
return ret;
}
/* delete a record */
static int lsql_delete(struct ldb_module *module, struct ldb_request *req)
{
struct lsqlite3_private *lsqlite3 = talloc_get_type(module->private_data, struct lsqlite3_private);
struct lsql_context *lsql_ac;
long long eid;
char *errmsg;
char *query;
int ret = LDB_SUCCESS;
lsql_ac = talloc_get_type(req->handle->private_data, struct lsql_context);
req->handle->state = LDB_ASYNC_DONE;
req->handle->status = LDB_SUCCESS;
eid = lsqlite3_get_eid(module, req->op.del.dn);
if (eid == -1) {
goto done;
}
query = lsqlite3_tprintf(lsql_ac,
/* Delete entry */
"DELETE FROM ldb_entry WHERE eid = %lld; "
/* Delete attributes */
"DELETE FROM ldb_attribute_values WHERE eid = %lld; ",
eid, eid);
if (query == NULL) {
ret = LDB_ERR_OTHER;
goto done;
}
ret = sqlite3_exec(lsqlite3->sqlite, query, NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
ldb_set_errstring(module->ldb, errmsg);
free(errmsg);
}
req->handle->status = LDB_ERR_OPERATIONS_ERROR;
goto done;
}
if (lsql_ac->callback) {
ret = lsql_ac->callback(module->ldb, lsql_ac->context, NULL);
}
done:
req->handle->state = LDB_ASYNC_DONE;
return ret;
}
/* rename a record */
static int lsql_rename(struct ldb_module *module, struct ldb_request *req)
{
struct lsqlite3_private *lsqlite3 = talloc_get_type(module->private_data, struct lsqlite3_private);
struct lsql_context *lsql_ac;
char *new_dn, *new_cdn, *old_cdn;
char *errmsg;
char *query;
int ret = LDB_SUCCESS;
lsql_ac = talloc_get_type(req->handle->private_data, struct lsql_context);
req->handle->state = LDB_ASYNC_DONE;
req->handle->status = LDB_SUCCESS;
/* create linearized and normalized dns */
old_cdn = ldb_dn_alloc_casefold(lsql_ac, req->op.rename.olddn);
new_cdn = ldb_dn_alloc_casefold(lsql_ac, req->op.rename.newdn);
new_dn = ldb_dn_alloc_linearized(lsql_ac, req->op.rename.newdn);
if (old_cdn == NULL || new_cdn == NULL || new_dn == NULL) {
goto done;
}
/* build the SQL query */
query = lsqlite3_tprintf(lsql_ac,
"UPDATE ldb_entry SET dn = '%q', norm_dn = '%q' "
"WHERE norm_dn = '%q';",
new_dn, new_cdn, old_cdn);
if (query == NULL) {
goto done;
}
/* execute */
ret = sqlite3_exec(lsqlite3->sqlite, query, NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
ldb_set_errstring(module->ldb, errmsg);
free(errmsg);
}
ret = LDB_ERR_OPERATIONS_ERROR;
goto done;
}
if (lsql_ac->callback) {
ret = lsql_ac->callback(module->ldb, lsql_ac->context, NULL);
}
done:
req->handle->state = LDB_ASYNC_DONE;
return ret;
}
static int lsql_start_trans(struct ldb_module * module)
{
int ret;
char *errmsg;
struct lsqlite3_private * lsqlite3 = module->private_data;
if (lsqlite3->trans_count == 0) {
ret = sqlite3_exec(lsqlite3->sqlite, "BEGIN IMMEDIATE;", NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
printf("lsqlite3_start_trans: error: %s\n", errmsg);
free(errmsg);
}
return -1;
}
};
lsqlite3->trans_count++;
return 0;
}
static int lsql_end_trans(struct ldb_module *module)
{
int ret;
char *errmsg;
struct lsqlite3_private *lsqlite3 = module->private_data;
if (lsqlite3->trans_count > 0) {
lsqlite3->trans_count--;
} else return -1;
if (lsqlite3->trans_count == 0) {
ret = sqlite3_exec(lsqlite3->sqlite, "COMMIT;", NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
printf("lsqlite3_end_trans: error: %s\n", errmsg);
free(errmsg);
}
return -1;
}
}
return 0;
}
static int lsql_del_trans(struct ldb_module *module)
{
struct lsqlite3_private *lsqlite3 = module->private_data;
if (lsqlite3->trans_count > 0) {
lsqlite3->trans_count--;
} else return -1;
if (lsqlite3->trans_count == 0) {
return lsqlite3_safe_rollback(lsqlite3->sqlite);
}
return -1;
}
static int destructor(struct lsqlite3_private *lsqlite3)
{
if (lsqlite3->sqlite) {
sqlite3_close(lsqlite3->sqlite);
}
return 0;
}
static int lsql_request(struct ldb_module *module, struct ldb_request *req)
{
return LDB_ERR_OPERATIONS_ERROR;
}
static int lsql_run_request(struct ldb_module *module, struct ldb_request *req)
{
switch (req->operation) {
case LDB_SEARCH:
return lsql_search(module, req);
break;
case LDB_ADD:
return lsql_add(module, req);
break;
case LDB_MODIFY:
return lsql_modify(module, req);
break;
case LDB_DELETE:
return lsql_delete(module, req);
break;
case LDB_RENAME:
return lsql_rename(module, req);
break;
/* TODO:
case LDB_SEQUENCE_NUMBER:
return lsql_sequence_number(module, req);
break;
*/
default:
return lsql_request(module, req);
break;
}
return LDB_ERR_OPERATIONS_ERROR;
}
static int lsql_handle_request(struct ldb_module *module, struct ldb_request *req)
{
struct lsql_context *ac;
if (check_critical_controls(req->controls)) {
return LDB_ERR_UNSUPPORTED_CRITICAL_EXTENSION;
}
ac = talloc_zero(req, struct lsql_context);
if (ac == NULL) {
ldb_set_errstring(module->ldb, "Out of Memory");
return LDB_ERR_OPERATIONS_ERROR;
}
ac->module = module;
ac->req = req;
req->handle = ldb_handle_new(req, lsql_run_request, ac);
if (req->handle == NULL) {
talloc_free(ac);
return LDB_ERR_OPERATIONS_ERROR;
}
return LDB_SUCCESS;
}
/*
* Table of operations for the sqlite3 backend
*/
static const struct ldb_module_ops lsqlite3_ops = {
.name = "sqlite",
.search = lsql_handle_request,
.add = lsql_handle_request,
.modify = lsql_handle_request,
.del = lsql_handle_request,
.rename = lsql_handle_request,
.request = lsql_handle_request,
.start_transaction = lsql_start_trans,
.end_transaction = lsql_end_trans,
.del_transaction = lsql_del_trans,
/* TODO: .sequence_number = lsql_handle_request */
};
/*
* Static functions
*/
static int initialize(struct lsqlite3_private *lsqlite3,
struct ldb_context *ldb, const char *url, int flags)
{
TALLOC_CTX *local_ctx;
long long queryInt;
int rollback = 0;
char *errmsg;
char *schema;
int ret;
/* create a local ctx */
local_ctx = talloc_named(lsqlite3, 0, "lsqlite3_rename local context");
if (local_ctx == NULL) {
return -1;
}
schema = lsqlite3_tprintf(local_ctx,
"CREATE TABLE ldb_info AS "
" SELECT 'LDB' AS database_type,"
" '1.0' AS version;"
/*
* The entry table holds the information about an entry.
* This table is used to obtain the EID of the entry and to
* support scope=one and scope=base. The parent and child
* table is included in the entry table since all the other
* attributes are dependent on EID.
*/
"CREATE TABLE ldb_entry "
"("
" eid INTEGER PRIMARY KEY AUTOINCREMENT,"
" dn TEXT UNIQUE NOT NULL,"
" norm_dn TEXT UNIQUE NOT NULL"
");"
"CREATE TABLE ldb_object_classes"
"("
" class_name TEXT PRIMARY KEY,"
" parent_class_name TEXT,"
" tree_key TEXT UNIQUE,"
" max_child_num INTEGER DEFAULT 0"
");"
/*
* We keep a full listing of attribute/value pairs here
*/
"CREATE TABLE ldb_attribute_values"
"("
" eid INTEGER REFERENCES ldb_entry,"
" attr_name TEXT,"
" norm_attr_name TEXT,"
" attr_value TEXT,"
" norm_attr_value TEXT "
");"
/*
* Indexes
*/
"CREATE INDEX ldb_attribute_values_eid_idx "
" ON ldb_attribute_values (eid);"
"CREATE INDEX ldb_attribute_values_name_value_idx "
" ON ldb_attribute_values (attr_name, norm_attr_value);"
/*
* Triggers
*/
"CREATE TRIGGER ldb_object_classes_insert_tr"
" AFTER INSERT"
" ON ldb_object_classes"
" FOR EACH ROW"
" BEGIN"
" UPDATE ldb_object_classes"
" SET tree_key = COALESCE(tree_key, "
" ("
" SELECT tree_key || "
" (SELECT base160(max_child_num + 1)"
" FROM ldb_object_classes"
" WHERE class_name = "
" new.parent_class_name)"
" FROM ldb_object_classes "
" WHERE class_name = new.parent_class_name "
" ));"
" UPDATE ldb_object_classes "
" SET max_child_num = max_child_num + 1"
" WHERE class_name = new.parent_class_name;"
" END;"
/*
* Table initialization
*/
"INSERT INTO ldb_object_classes "
" (class_name, tree_key) "
" VALUES "
" ('TOP', '0001');");
/* Skip protocol indicator of url */
if (strncmp(url, "sqlite3://", 10) != 0) {
return SQLITE_MISUSE;
}
/* Update pointer to just after the protocol indicator */
url += 10;
/* Try to open the (possibly empty/non-existent) database */
if ((ret = sqlite3_open(url, &lsqlite3->sqlite)) != SQLITE_OK) {
return ret;
}
/* In case this is a new database, enable auto_vacuum */
ret = sqlite3_exec(lsqlite3->sqlite, "PRAGMA auto_vacuum = 1;", NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
printf("lsqlite3 initializaion error: %s\n", errmsg);
free(errmsg);
}
goto failed;
}
if (flags & LDB_FLG_NOSYNC) {
/* DANGEROUS */
ret = sqlite3_exec(lsqlite3->sqlite, "PRAGMA synchronous = OFF;", NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
printf("lsqlite3 initializaion error: %s\n", errmsg);
free(errmsg);
}
goto failed;
}
}
/* */
/* Establish a busy timeout of 30 seconds */
if ((ret = sqlite3_busy_timeout(lsqlite3->sqlite,
30000)) != SQLITE_OK) {
return ret;
}
/* Create a function, callable from sql, to increment a tree_key */
if ((ret =
sqlite3_create_function(lsqlite3->sqlite,/* handle */
"base160_next", /* function name */
1, /* number of args */
SQLITE_ANY, /* preferred text type */
NULL, /* user data */
base160next_sql, /* called func */
NULL, /* step func */
NULL /* final func */
)) != SQLITE_OK) {
return ret;
}
/* Create a function, callable from sql, to convert int to base160 */
if ((ret =
sqlite3_create_function(lsqlite3->sqlite,/* handle */
"base160", /* function name */
1, /* number of args */
SQLITE_ANY, /* preferred text type */
NULL, /* user data */
base160_sql, /* called func */
NULL, /* step func */
NULL /* final func */
)) != SQLITE_OK) {
return ret;
}
/* Create a function, callable from sql, to perform various comparisons */
if ((ret =
sqlite3_create_function(lsqlite3->sqlite, /* handle */
"ldap_compare", /* function name */
4, /* number of args */
SQLITE_ANY, /* preferred text type */
ldb , /* user data */
lsqlite3_compare, /* called func */
NULL, /* step func */
NULL /* final func */
)) != SQLITE_OK) {
return ret;
}
/* Begin a transaction */
ret = sqlite3_exec(lsqlite3->sqlite, "BEGIN EXCLUSIVE;", NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
printf("lsqlite3: initialization error: %s\n", errmsg);
free(errmsg);
}
goto failed;
}
rollback = 1;
/* Determine if this is a new database. No tables means it is. */
if (query_int(lsqlite3,
&queryInt,
"SELECT COUNT(*)\n"
" FROM sqlite_master\n"
" WHERE type = 'table';") != 0) {
goto failed;
}
if (queryInt == 0) {
/*
* Create the database schema
*/
ret = sqlite3_exec(lsqlite3->sqlite, schema, NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
printf("lsqlite3 initializaion error: %s\n", errmsg);
free(errmsg);
}
goto failed;
}
} else {
/*
* Ensure that the database we opened is one of ours
*/
if (query_int(lsqlite3,
&queryInt,
"SELECT "
" (SELECT COUNT(*) = 2"
" FROM sqlite_master "
" WHERE type = 'table' "
" AND name IN "
" ("
" 'ldb_entry', "
" 'ldb_object_classes' "
" ) "
" ) "
" AND "
" (SELECT 1 "
" FROM ldb_info "
" WHERE database_type = 'LDB' "
" AND version = '1.0'"
" );") != 0 ||
queryInt != 1) {
/* It's not one that we created. See ya! */
goto failed;
}
}
/* Commit the transaction */
ret = sqlite3_exec(lsqlite3->sqlite, "COMMIT;", NULL, NULL, &errmsg);
if (ret != SQLITE_OK) {
if (errmsg) {
printf("lsqlite3: iniialization error: %s\n", errmsg);
free(errmsg);
}
goto failed;
}
return SQLITE_OK;
failed:
if (rollback) lsqlite3_safe_rollback(lsqlite3->sqlite);
sqlite3_close(lsqlite3->sqlite);
return -1;
}
/*
* connect to the database
*/
static int lsqlite3_connect(struct ldb_context *ldb,
const char *url,
unsigned int flags,
const char *options[],
struct ldb_module **module)
{
int i;
int ret;
struct lsqlite3_private * lsqlite3 = NULL;
lsqlite3 = talloc(ldb, struct lsqlite3_private);
if (!lsqlite3) {
goto failed;
}
lsqlite3->sqlite = NULL;
lsqlite3->options = NULL;
lsqlite3->trans_count = 0;
ret = initialize(lsqlite3, ldb, url, flags);
if (ret != SQLITE_OK) {
goto failed;
}
talloc_set_destructor(lsqlite3, destructor);
*module = talloc(ldb, struct ldb_module);
if (!module) {
ldb_oom(ldb);
goto failed;
}
talloc_set_name_const(*module, "ldb_sqlite3 backend");
(*module)->ldb = ldb;
(*module)->prev = (*module)->next = NULL;
(*module)->private_data = lsqlite3;
(*module)->ops = &lsqlite3_ops;
if (options) {
/*
* take a copy of the options array, so we don't have to rely
* on the caller keeping it around (it might be dynamic)
*/
for (i=0;options[i];i++) ;
lsqlite3->options = talloc_array(lsqlite3, char *, i+1);
if (!lsqlite3->options) {
goto failed;
}
for (i=0;options[i];i++) {
lsqlite3->options[i+1] = NULL;
lsqlite3->options[i] =
talloc_strdup(lsqlite3->options, options[i]);
if (!lsqlite3->options[i]) {
goto failed;
}
}
}
return 0;
failed:
if (lsqlite3->sqlite != NULL) {
(void) sqlite3_close(lsqlite3->sqlite);
}
talloc_free(lsqlite3);
return -1;
}
const struct ldb_backend_ops ldb_sqlite3_backend_ops = {
.name = "sqlite3",
.connect_fn = lsqlite3_connect
};