x_x509.c | Explore in Territory

/* Copyright (C) 1995-1998 Eric Young ([email protected])
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young ([email protected]).
 * 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 ([email protected]).
 *
 * 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 ([email protected])"
 *    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 ([email protected])"
 *
 * 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 <assert.h>
#include <limits.h>
#include <stdio.h>

#include <openssl/asn1t.h>
#include <openssl/evp.h>
#include <openssl/mem.h>
#include <openssl/obj.h>
#include <openssl/pool.h>
#include <openssl/thread.h>
#include <openssl/x509.h>

#include "../asn1/internal.h"
#include "../bytestring/internal.h"
#include "../internal.h"
#include "internal.h"

static CRYPTO_EX_DATA_CLASS g_ex_data_class = …;

ASN1_SEQUENCE_enc(X509_CINF, enc, 0) = … ASN1_SEQUENCE_END_enc(X509_CINF, X509_CINF)

IMPLEMENT_ASN1_FUNCTIONS(…)

// x509_new_null returns a new |X509| object where the |cert_info|, |sig_alg|,
// and |signature| fields are not yet filled in.
static X509 *x509_new_null(void) { … }

X509 *X509_new(void) { … }

void X509_free(X509 *x509) { … }

static X509 *x509_parse(CBS *cbs, CRYPTO_BUFFER *buf) { … }

X509 *d2i_X509(X509 **out, const uint8_t **inp, long len) { … }

int i2d_X509(X509 *x509, uint8_t **outp) { … }

static int x509_new_cb(ASN1_VALUE **pval, const ASN1_ITEM *it) { … }

static void x509_free_cb(ASN1_VALUE **pval, const ASN1_ITEM *it) { … }

static int x509_d2i_cb(ASN1_VALUE **pval, const unsigned char **in, long len,
                       const ASN1_ITEM *it, int opt, ASN1_TLC *ctx) { … }

static int x509_i2d_cb(ASN1_VALUE **pval, unsigned char **out,
                       const ASN1_ITEM *it) { … }

static const ASN1_EXTERN_FUNCS x509_extern_funcs = …;

IMPLEMENT_EXTERN_ASN1(X509, V_ASN1_SEQUENCE, x509_extern_funcs)

X509 *X509_dup(X509 *x509) { … }

X509 *X509_parse_from_buffer(CRYPTO_BUFFER *buf) { … }

int X509_up_ref(X509 *x) { … }

int X509_get_ex_new_index(long argl, void *argp, CRYPTO_EX_unused *unused,
                          CRYPTO_EX_dup *dup_unused,
                          CRYPTO_EX_free *free_func) { … }

int X509_set_ex_data(X509 *r, int idx, void *arg) { … }

void *X509_get_ex_data(X509 *r, int idx) { … }

// X509_AUX ASN1 routines. X509_AUX is the name given to a certificate with
// extra info tagged on the end. Since these functions set how a certificate
// is trusted they should only be used when the certificate comes from a
// reliable source such as local storage.

X509 *d2i_X509_AUX(X509 **a, const unsigned char **pp, long length) { … }

// Serialize trusted certificate to *pp or just return the required buffer
// length if pp == NULL.  We ultimately want to avoid modifying *pp in the
// error path, but that depends on similar hygiene in lower-level functions.
// Here we avoid compounding the problem.
static int i2d_x509_aux_internal(X509 *a, unsigned char **pp) { … }

// Serialize trusted certificate to *pp, or just return the required buffer
// length if pp == NULL.
//
// When pp is not NULL, but *pp == NULL, we allocate the buffer, but since
// we're writing two ASN.1 objects back to back, we can't have i2d_X509() do
// the allocation, nor can we allow i2d_X509_CERT_AUX() to increment the
// allocated buffer.
int i2d_X509_AUX(X509 *a, unsigned char **pp) { … }

int i2d_re_X509_tbs(X509 *x509, unsigned char **outp) { … }

int i2d_X509_tbs(X509 *x509, unsigned char **outp) { … }

int X509_set1_signature_algo(X509 *x509, const X509_ALGOR *algo) { … }

int X509_set1_signature_value(X509 *x509, const uint8_t *sig, size_t sig_len) { … }

void X509_get0_signature(const ASN1_BIT_STRING **psig, const X509_ALGOR **palg,
                         const X509 *x) { … }

int X509_get_signature_nid(const X509 *x) { … }
chromium/third_party/boringssl/src/crypto/x509/x_x509.c
