442 lines
14 KiB
C
442 lines
14 KiB
C
/* crypto/x509/by_dir.c */
|
|
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
|
|
* All rights reserved.
|
|
*
|
|
* This package is an SSL implementation written
|
|
* by Eric Young (eay@cryptsoft.com).
|
|
* The implementation was written so as to conform with Netscapes SSL.
|
|
*
|
|
* This library is free for commercial and non-commercial use as long as
|
|
* the following conditions are aheared to. The following conditions
|
|
* apply to all code found in this distribution, be it the RC4, RSA,
|
|
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
|
|
* included with this distribution is covered by the same copyright terms
|
|
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
|
|
*
|
|
* Copyright remains Eric Young's, and as such any Copyright notices in
|
|
* the code are not to be removed.
|
|
* If this package is used in a product, Eric Young should be given attribution
|
|
* as the author of the parts of the library used.
|
|
* This can be in the form of a textual message at program startup or
|
|
* in documentation (online or textual) provided with the package.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* "This product includes cryptographic software written by
|
|
* Eric Young (eay@cryptsoft.com)"
|
|
* The word 'cryptographic' can be left out if the rouines from the library
|
|
* being used are not cryptographic related :-).
|
|
* 4. If you include any Windows specific code (or a derivative thereof) from
|
|
* the apps directory (application code) you must include an acknowledgement:
|
|
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* The licence and distribution terms for any publically available version or
|
|
* derivative of this code cannot be changed. i.e. this code cannot simply be
|
|
* copied and put under another distribution licence
|
|
* [including the GNU Public Licence.]
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <time.h>
|
|
#include <errno.h>
|
|
|
|
#include "cryptlib.h"
|
|
|
|
#ifndef NO_SYS_TYPES_H
|
|
# include <sys/types.h>
|
|
#endif
|
|
#ifndef OPENSSL_NO_POSIX_IO
|
|
# include <sys/stat.h>
|
|
#endif
|
|
|
|
#include <openssl/lhash.h>
|
|
#include <openssl/x509.h>
|
|
|
|
typedef struct lookup_dir_hashes_st {
|
|
unsigned long hash;
|
|
int suffix;
|
|
} BY_DIR_HASH;
|
|
|
|
typedef struct lookup_dir_entry_st {
|
|
char *dir;
|
|
int dir_type;
|
|
STACK_OF(BY_DIR_HASH) *hashes;
|
|
} BY_DIR_ENTRY;
|
|
|
|
typedef struct lookup_dir_st {
|
|
BUF_MEM *buffer;
|
|
STACK_OF(BY_DIR_ENTRY) *dirs;
|
|
} BY_DIR;
|
|
|
|
DECLARE_STACK_OF(BY_DIR_HASH)
|
|
DECLARE_STACK_OF(BY_DIR_ENTRY)
|
|
|
|
static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
|
|
char **ret);
|
|
static int new_dir(X509_LOOKUP *lu);
|
|
static void free_dir(X509_LOOKUP *lu);
|
|
static int add_cert_dir(BY_DIR *ctx, const char *dir, int type);
|
|
static int get_cert_by_subject(X509_LOOKUP *xl, int type, X509_NAME *name,
|
|
X509_OBJECT *ret);
|
|
X509_LOOKUP_METHOD x509_dir_lookup = {
|
|
"Load certs from files in a directory",
|
|
new_dir, /* new */
|
|
free_dir, /* free */
|
|
NULL, /* init */
|
|
NULL, /* shutdown */
|
|
dir_ctrl, /* ctrl */
|
|
get_cert_by_subject, /* get_by_subject */
|
|
NULL, /* get_by_issuer_serial */
|
|
NULL, /* get_by_fingerprint */
|
|
NULL, /* get_by_alias */
|
|
};
|
|
|
|
X509_LOOKUP_METHOD *X509_LOOKUP_hash_dir(void)
|
|
{
|
|
return (&x509_dir_lookup);
|
|
}
|
|
|
|
static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
|
|
char **retp)
|
|
{
|
|
int ret = 0;
|
|
BY_DIR *ld;
|
|
char *dir = NULL;
|
|
|
|
ld = (BY_DIR *)ctx->method_data;
|
|
|
|
switch (cmd) {
|
|
case X509_L_ADD_DIR:
|
|
if (argl == X509_FILETYPE_DEFAULT) {
|
|
dir = (char *)ossl_safe_getenv(X509_get_default_cert_dir_env());
|
|
if (dir)
|
|
ret = add_cert_dir(ld, dir, X509_FILETYPE_PEM);
|
|
else
|
|
ret = add_cert_dir(ld, X509_get_default_cert_dir(),
|
|
X509_FILETYPE_PEM);
|
|
if (!ret) {
|
|
X509err(X509_F_DIR_CTRL, X509_R_LOADING_CERT_DIR);
|
|
}
|
|
} else
|
|
ret = add_cert_dir(ld, argp, (int)argl);
|
|
break;
|
|
}
|
|
return (ret);
|
|
}
|
|
|
|
static int new_dir(X509_LOOKUP *lu)
|
|
{
|
|
BY_DIR *a;
|
|
|
|
if ((a = (BY_DIR *)OPENSSL_malloc(sizeof(BY_DIR))) == NULL)
|
|
return (0);
|
|
if ((a->buffer = BUF_MEM_new()) == NULL) {
|
|
OPENSSL_free(a);
|
|
return (0);
|
|
}
|
|
a->dirs = NULL;
|
|
lu->method_data = (char *)a;
|
|
return (1);
|
|
}
|
|
|
|
static void by_dir_hash_free(BY_DIR_HASH *hash)
|
|
{
|
|
OPENSSL_free(hash);
|
|
}
|
|
|
|
static int by_dir_hash_cmp(const BY_DIR_HASH *const *a,
|
|
const BY_DIR_HASH *const *b)
|
|
{
|
|
if ((*a)->hash > (*b)->hash)
|
|
return 1;
|
|
if ((*a)->hash < (*b)->hash)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
static void by_dir_entry_free(BY_DIR_ENTRY *ent)
|
|
{
|
|
if (ent->dir)
|
|
OPENSSL_free(ent->dir);
|
|
if (ent->hashes)
|
|
sk_BY_DIR_HASH_pop_free(ent->hashes, by_dir_hash_free);
|
|
OPENSSL_free(ent);
|
|
}
|
|
|
|
static void free_dir(X509_LOOKUP *lu)
|
|
{
|
|
BY_DIR *a;
|
|
|
|
a = (BY_DIR *)lu->method_data;
|
|
if (a->dirs != NULL)
|
|
sk_BY_DIR_ENTRY_pop_free(a->dirs, by_dir_entry_free);
|
|
if (a->buffer != NULL)
|
|
BUF_MEM_free(a->buffer);
|
|
OPENSSL_free(a);
|
|
}
|
|
|
|
static int add_cert_dir(BY_DIR *ctx, const char *dir, int type)
|
|
{
|
|
int j, len;
|
|
const char *s, *ss, *p;
|
|
|
|
if (dir == NULL || !*dir) {
|
|
X509err(X509_F_ADD_CERT_DIR, X509_R_INVALID_DIRECTORY);
|
|
return 0;
|
|
}
|
|
|
|
s = dir;
|
|
p = s;
|
|
do {
|
|
if ((*p == LIST_SEPARATOR_CHAR) || (*p == '\0')) {
|
|
BY_DIR_ENTRY *ent;
|
|
ss = s;
|
|
s = p + 1;
|
|
len = (int)(p - ss);
|
|
if (len == 0)
|
|
continue;
|
|
for (j = 0; j < sk_BY_DIR_ENTRY_num(ctx->dirs); j++) {
|
|
ent = sk_BY_DIR_ENTRY_value(ctx->dirs, j);
|
|
if (strlen(ent->dir) == (size_t)len &&
|
|
strncmp(ent->dir, ss, (unsigned int)len) == 0)
|
|
break;
|
|
}
|
|
if (j < sk_BY_DIR_ENTRY_num(ctx->dirs))
|
|
continue;
|
|
if (ctx->dirs == NULL) {
|
|
ctx->dirs = sk_BY_DIR_ENTRY_new_null();
|
|
if (!ctx->dirs) {
|
|
X509err(X509_F_ADD_CERT_DIR, ERR_R_MALLOC_FAILURE);
|
|
return 0;
|
|
}
|
|
}
|
|
ent = OPENSSL_malloc(sizeof(BY_DIR_ENTRY));
|
|
if (!ent)
|
|
return 0;
|
|
ent->dir_type = type;
|
|
ent->hashes = sk_BY_DIR_HASH_new(by_dir_hash_cmp);
|
|
ent->dir = OPENSSL_malloc((unsigned int)len + 1);
|
|
if (!ent->dir || !ent->hashes) {
|
|
by_dir_entry_free(ent);
|
|
return 0;
|
|
}
|
|
strncpy(ent->dir, ss, (unsigned int)len);
|
|
ent->dir[len] = '\0';
|
|
if (!sk_BY_DIR_ENTRY_push(ctx->dirs, ent)) {
|
|
by_dir_entry_free(ent);
|
|
return 0;
|
|
}
|
|
}
|
|
} while (*p++ != '\0');
|
|
return 1;
|
|
}
|
|
|
|
static int get_cert_by_subject(X509_LOOKUP *xl, int type, X509_NAME *name,
|
|
X509_OBJECT *ret)
|
|
{
|
|
BY_DIR *ctx;
|
|
union {
|
|
struct {
|
|
X509 st_x509;
|
|
X509_CINF st_x509_cinf;
|
|
} x509;
|
|
struct {
|
|
X509_CRL st_crl;
|
|
X509_CRL_INFO st_crl_info;
|
|
} crl;
|
|
} data;
|
|
int ok = 0;
|
|
int i, j, k;
|
|
unsigned long h;
|
|
BUF_MEM *b = NULL;
|
|
X509_OBJECT stmp, *tmp;
|
|
const char *postfix = "";
|
|
|
|
if (name == NULL)
|
|
return (0);
|
|
|
|
stmp.type = type;
|
|
if (type == X509_LU_X509) {
|
|
data.x509.st_x509.cert_info = &data.x509.st_x509_cinf;
|
|
data.x509.st_x509_cinf.subject = name;
|
|
stmp.data.x509 = &data.x509.st_x509;
|
|
postfix = "";
|
|
} else if (type == X509_LU_CRL) {
|
|
data.crl.st_crl.crl = &data.crl.st_crl_info;
|
|
data.crl.st_crl_info.issuer = name;
|
|
stmp.data.crl = &data.crl.st_crl;
|
|
postfix = "r";
|
|
} else {
|
|
X509err(X509_F_GET_CERT_BY_SUBJECT, X509_R_WRONG_LOOKUP_TYPE);
|
|
goto finish;
|
|
}
|
|
|
|
if ((b = BUF_MEM_new()) == NULL) {
|
|
X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_BUF_LIB);
|
|
goto finish;
|
|
}
|
|
|
|
ctx = (BY_DIR *)xl->method_data;
|
|
|
|
h = X509_NAME_hash(name);
|
|
for (i = 0; i < sk_BY_DIR_ENTRY_num(ctx->dirs); i++) {
|
|
BY_DIR_ENTRY *ent;
|
|
int idx;
|
|
BY_DIR_HASH htmp, *hent;
|
|
ent = sk_BY_DIR_ENTRY_value(ctx->dirs, i);
|
|
j = strlen(ent->dir) + 1 + 8 + 6 + 1 + 1;
|
|
if (!BUF_MEM_grow(b, j)) {
|
|
X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_MALLOC_FAILURE);
|
|
goto finish;
|
|
}
|
|
if (type == X509_LU_CRL && ent->hashes) {
|
|
htmp.hash = h;
|
|
CRYPTO_r_lock(CRYPTO_LOCK_X509_STORE);
|
|
idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp);
|
|
if (idx >= 0) {
|
|
hent = sk_BY_DIR_HASH_value(ent->hashes, idx);
|
|
k = hent->suffix;
|
|
} else {
|
|
hent = NULL;
|
|
k = 0;
|
|
}
|
|
CRYPTO_r_unlock(CRYPTO_LOCK_X509_STORE);
|
|
} else {
|
|
k = 0;
|
|
hent = NULL;
|
|
}
|
|
for (;;) {
|
|
char c = '/';
|
|
#ifdef OPENSSL_SYS_VMS
|
|
c = ent->dir[strlen(ent->dir) - 1];
|
|
if (c != ':' && c != '>' && c != ']') {
|
|
/*
|
|
* If no separator is present, we assume the directory
|
|
* specifier is a logical name, and add a colon. We really
|
|
* should use better VMS routines for merging things like
|
|
* this, but this will do for now... -- Richard Levitte
|
|
*/
|
|
c = ':';
|
|
} else {
|
|
c = '\0';
|
|
}
|
|
#endif
|
|
if (c == '\0') {
|
|
/*
|
|
* This is special. When c == '\0', no directory separator
|
|
* should be added.
|
|
*/
|
|
BIO_snprintf(b->data, b->max,
|
|
"%s%08lx.%s%d", ent->dir, h, postfix, k);
|
|
} else {
|
|
BIO_snprintf(b->data, b->max,
|
|
"%s%c%08lx.%s%d", ent->dir, c, h, postfix, k);
|
|
}
|
|
#ifndef OPENSSL_NO_POSIX_IO
|
|
# ifdef _WIN32
|
|
# define stat _stat
|
|
# endif
|
|
{
|
|
struct stat st;
|
|
if (stat(b->data, &st) < 0)
|
|
break;
|
|
}
|
|
#endif
|
|
/* found one. */
|
|
if (type == X509_LU_X509) {
|
|
if ((X509_load_cert_file(xl, b->data, ent->dir_type)) == 0)
|
|
break;
|
|
} else if (type == X509_LU_CRL) {
|
|
if ((X509_load_crl_file(xl, b->data, ent->dir_type)) == 0)
|
|
break;
|
|
}
|
|
/* else case will caught higher up */
|
|
k++;
|
|
}
|
|
|
|
/*
|
|
* we have added it to the cache so now pull it out again
|
|
*/
|
|
CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
|
|
j = sk_X509_OBJECT_find(xl->store_ctx->objs, &stmp);
|
|
if (j != -1)
|
|
tmp = sk_X509_OBJECT_value(xl->store_ctx->objs, j);
|
|
else
|
|
tmp = NULL;
|
|
CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
|
|
|
|
/* If a CRL, update the last file suffix added for this */
|
|
|
|
if (type == X509_LU_CRL) {
|
|
CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
|
|
/*
|
|
* Look for entry again in case another thread added an entry
|
|
* first.
|
|
*/
|
|
if (!hent) {
|
|
htmp.hash = h;
|
|
idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp);
|
|
if (idx >= 0)
|
|
hent = sk_BY_DIR_HASH_value(ent->hashes, idx);
|
|
}
|
|
if (!hent) {
|
|
hent = OPENSSL_malloc(sizeof(BY_DIR_HASH));
|
|
if (hent == NULL) {
|
|
CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
|
|
X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_MALLOC_FAILURE);
|
|
goto finish;
|
|
}
|
|
hent->hash = h;
|
|
hent->suffix = k;
|
|
if (!sk_BY_DIR_HASH_push(ent->hashes, hent)) {
|
|
CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
|
|
OPENSSL_free(hent);
|
|
ok = 0;
|
|
goto finish;
|
|
}
|
|
} else if (hent->suffix < k)
|
|
hent->suffix = k;
|
|
|
|
CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
|
|
|
|
}
|
|
|
|
if (tmp != NULL) {
|
|
ok = 1;
|
|
ret->type = tmp->type;
|
|
memcpy(&ret->data, &tmp->data, sizeof(ret->data));
|
|
/*
|
|
* If we were going to up the reference count, we would need to
|
|
* do it on a perl 'type' basis
|
|
*/
|
|
/*- CRYPTO_add(&tmp->data.x509->references,1,
|
|
CRYPTO_LOCK_X509);*/
|
|
goto finish;
|
|
}
|
|
}
|
|
finish:
|
|
if (b != NULL)
|
|
BUF_MEM_free(b);
|
|
return (ok);
|
|
}
|