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credential lookup in mysql/sqlite database

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This commit is contained in:
Martin Willi
2008-03-14 15:06:42 +00:00
parent 9c410a8806
commit 39ea88f694
7 changed files with 493 additions and 2 deletions
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src/charon/plugins/sql/sql_cred.c
+346
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/*
* Copyright (C) 2008 Martin Willi
* Hochschule fuer Technik Rapperswil
*
* 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. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* 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.
*
* $Id: sql_cred.c 3589 2008-03-13 14:14:44Z martin $
*/
#include <string.h>
#include "sql_cred.h"
#include <daemon.h>
typedef struct private_sql_cred_t private_sql_cred_t;
/**
* Private data of an sql_cred_t object
*/
struct private_sql_cred_t {
/**
* Public part
*/
sql_cred_t public;
/**
* database connection
*/
database_t *db;
};
/**
* enumerator over private keys
*/
typedef struct {
/** implements enumerator */
enumerator_t public;
/** inner SQL enumerator */
enumerator_t *inner;
/** currently enumerated private key */
private_key_t *current;
} private_enumerator_t;
/**
* Implementation of private_enumerator_t.public.enumerate
*/
static bool private_enumerator_enumerate(private_enumerator_t *this,
private_key_t **key)
{
chunk_t blob;
int type;
DESTROY_IF(this->current);
while (this->inner->enumerate(this->inner, &type, &blob))
{
this->current = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, type,
BUILD_BLOB_ASN1_DER, chunk_clone(blob),
BUILD_END);
if (this->current)
{
*key = this->current;
return TRUE;
}
}
this->current = NULL;
return FALSE;
}
/**
* Implementation of private_enumerator_t.public.destroy
*/
static void private_enumerator_destroy(private_enumerator_t *this)
{
DESTROY_IF(this->current);
this->inner->destroy(this->inner);
free(this);
}
/**
* Implementation of credential_set_t.create_private_enumerator.
*/
static enumerator_t* create_private_enumerator(private_sql_cred_t *this,
key_type_t type,
identification_t *id)
{
private_enumerator_t *e;
chunk_t keyid = chunk_empty;
if (id)
{
if (id->get_type(id) != ID_PUBKEY_INFO_SHA1)
{
DBG1(DBG_CFG, "looking for %N private key", id_type_names, id->get_type(id));
return NULL;
}
keyid = id->get_encoding(id);
DBG1(DBG_CFG, "looking for %#B", &keyid);
}
DBG1(DBG_CFG, "looking for a private key");
e = malloc_thing(private_enumerator_t);
e->current = NULL;
e->public.enumerate = (void*)private_enumerator_enumerate;
e->public.destroy = (void*)private_enumerator_destroy;
e->inner = this->db->query(this->db,
"SELECT type, data FROM private_keys "
"WHERE (? OR keyid = ?) AND (? OR type = ?)",
DB_INT, id == NULL, DB_BLOB, keyid,
DB_INT, type == KEY_ANY, DB_INT, type,
DB_INT, DB_BLOB);
if (!e->inner)
{
free(e);
return NULL;
}
return &e->public;
}
/**
* enumerator over certificates
*/
typedef struct {
/** implements enumerator */
enumerator_t public;
/** inner SQL enumerator */
enumerator_t *inner;
/** currently enumerated cert */
certificate_t *current;
} cert_enumerator_t;
/**
* Implementation of cert_enumerator_t.public.enumerate
*/
static bool cert_enumerator_enumerate(cert_enumerator_t *this,
certificate_t **cert)
{
chunk_t blob;
int type;
DESTROY_IF(this->current);
while (this->inner->enumerate(this->inner, &type, &blob))
{
this->current = lib->creds->create(lib->creds, CRED_CERTIFICATE, type,
BUILD_BLOB_ASN1_DER, chunk_clone(blob),
BUILD_END);
if (this->current)
{
*cert = this->current;
return TRUE;
}
}
this->current = NULL;
return FALSE;
}
/**
* Implementation of cert_enumerator_t.public.destroy
*/
static void cert_enumerator_destroy(cert_enumerator_t *this)
{
DESTROY_IF(this->current);
this->inner->destroy(this->inner);
free(this);
}
/**
* Implementation of credential_set_t.create_cert_enumerator.
*/
static enumerator_t* create_cert_enumerator(private_sql_cred_t *this,
certificate_type_t cert, key_type_t key,
identification_t *id, bool trusted)
{
cert_enumerator_t *e;
chunk_t enc = chunk_empty;
id_type_t type = ID_ANY;
if (id)
{
type = id->get_type(id);
enc = id->get_encoding(id);
}
e = malloc_thing(cert_enumerator_t);
e->current = NULL;
e->public.enumerate = (void*)cert_enumerator_enumerate;
e->public.destroy = (void*)cert_enumerator_destroy;
e->inner = this->db->query(this->db,
"SELECT type, data FROM certificates "
"WHERE (? OR type = ?) AND (? OR keytype = ?) AND "
"(? OR (? AND subject = ?) OR (? AND keyid = ?))",
DB_INT, cert == CERT_ANY, DB_INT, cert,
DB_INT, key == KEY_ANY, DB_INT, key,
DB_INT, id == NULL,
DB_INT, type == ID_DER_ASN1_DN, DB_BLOB, enc,
DB_INT, type == ID_PUBKEY_INFO_SHA1, DB_BLOB, enc,
DB_INT, DB_BLOB);
if (!e->inner)
{
free(e);
return NULL;
}
return &e->public;
}
/**
* enumerator over shared keys
*/
typedef struct {
/** implements enumerator */
enumerator_t public;
/** inner SQL enumerator */
enumerator_t *inner;
/** match of me */
id_match_t me;
/** match of other */
id_match_t other;
/** currently enumerated private key */
shared_key_t *current;
} shared_enumerator_t;
/**
* Implementation of shared_enumerator_t.public.enumerate
*/
static bool shared_enumerator_enumerate(shared_enumerator_t *this,
shared_key_t **shared,
id_match_t *me, id_match_t *other)
{
chunk_t blob;
int type;
DESTROY_IF(this->current);
while (this->inner->enumerate(this->inner, &type, &blob))
{
this->current = shared_key_create(type, chunk_clone(blob));
if (this->current)
{
*shared = this->current;
if (me)
{
*me = this->me;
}
if (other)
{
*other = this->other;
}
return TRUE;
}
}
this->current = NULL;
return FALSE;
}
/**
* Implementation of shared_enumerator_t.public.destroy
*/
static void shared_enumerator_destroy(shared_enumerator_t *this)
{
DESTROY_IF(this->current);
this->inner->destroy(this->inner);
free(this);
}
/**
* Implementation of credential_set_t.create_shared_enumerator.
*/
static enumerator_t* create_shared_enumerator(private_sql_cred_t *this,
shared_key_type_t type,
identification_t *me, identification_t *other)
{
shared_enumerator_t *e;
chunk_t my_chunk = chunk_empty, other_chunk = chunk_empty;
e = malloc_thing(shared_enumerator_t);
e->me = ID_MATCH_ANY;
e->other = ID_MATCH_ANY;
if (me)
{
e->me = ID_MATCH_PERFECT;
my_chunk = me->get_encoding(me);
}
if (other)
{
e->other = ID_MATCH_PERFECT;
other_chunk = other->get_encoding(other);
}
e->current = NULL;
e->public.enumerate = (void*)shared_enumerator_enumerate;
e->public.destroy = (void*)shared_enumerator_destroy;
e->inner = this->db->query(this->db,
"SELECT type, data FROM certificates "
"WHERE (? OR local = ?) AND (? OR remote = ?) AND (? OR type = ?)",
DB_INT, me == NULL, DB_BLOB, my_chunk,
DB_INT, other == NULL, DB_BLOB, other_chunk,
DB_INT, type == SHARED_ANY, DB_INT, type,
DB_INT, DB_BLOB);
if (!e->inner)
{
free(e);
return NULL;
}
return &e->public;
}
/**
* return null
*/
static void *return_null()
{
return NULL;
}
/**
* Implementation of sql_cred_t.destroy.
*/
static void destroy(private_sql_cred_t *this)
{
free(this);
}
/**
* Described in header.
*/
sql_cred_t *sql_cred_create(database_t *db)
{
private_sql_cred_t *this = malloc_thing(private_sql_cred_t);
this->public.set.create_private_enumerator = (void*)create_private_enumerator;
this->public.set.create_cert_enumerator = (void*)create_cert_enumerator;
this->public.set.create_shared_enumerator = (void*)create_shared_enumerator;
this->public.set.create_cdp_enumerator = (void*)return_null;
this->public.destroy = (void(*)(sql_cred_t*))destroy;
this->db = db;
return &this->public;
}