ref: 009439541d2c6e8af2596f8fb1b4df85861fd212
dir: /third_party/boringssl/src/ssl/ssl_file.cc/
/* 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.]
*/
/* ====================================================================
* Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
*
* 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 above 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 acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* openssl-core@openssl.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 OpenSSL PROJECT OR
* ITS 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.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <openssl/ssl.h>
#include <errno.h>
#include <string.h>
#include <openssl/asn1.h>
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/mem.h>
#include <openssl/pem.h>
#include <openssl/stack.h>
#include <openssl/x509.h>
#include "internal.h"
static int xname_cmp(const X509_NAME *const *a, const X509_NAME *const *b) {
return X509_NAME_cmp(*a, *b);
}
static int add_bio_cert_subjects_to_stack(STACK_OF(X509_NAME) *out, BIO *bio,
bool allow_empty) {
// This function historically sorted |out| after every addition and skipped
// duplicates. This implementation preserves that behavior, but only sorts at
// the end, to avoid a quadratic running time. Existing duplicates in |out|
// are preserved, but do not introduce new duplicates.
bssl::UniquePtr<STACK_OF(X509_NAME)> to_append(sk_X509_NAME_new(xname_cmp));
if (to_append == nullptr) {
return 0;
}
// Temporarily switch the comparison function for |out|.
struct RestoreCmpFunc {
~RestoreCmpFunc() { sk_X509_NAME_set_cmp_func(stack, old_cmp); }
STACK_OF(X509_NAME) *stack;
int (*old_cmp)(const X509_NAME *const *, const X509_NAME *const *);
};
RestoreCmpFunc restore = {out, sk_X509_NAME_set_cmp_func(out, xname_cmp)};
sk_X509_NAME_sort(out);
bool first = true;
for (;;) {
bssl::UniquePtr<X509> x509(
PEM_read_bio_X509(bio, nullptr, nullptr, nullptr));
if (x509 == nullptr) {
if (first && !allow_empty) {
return 0;
}
// TODO(davidben): This ignores PEM syntax errors. It should only succeed
// on |PEM_R_NO_START_LINE|.
ERR_clear_error();
break;
}
first = false;
X509_NAME *subject = X509_get_subject_name(x509.get());
// Skip if already present in |out|. Duplicates in |to_append| will be
// handled separately.
if (sk_X509_NAME_find(out, /*out_index=*/NULL, subject)) {
continue;
}
bssl::UniquePtr<X509_NAME> copy(X509_NAME_dup(subject));
if (copy == nullptr ||
!bssl::PushToStack(to_append.get(), std::move(copy))) {
return 0;
}
}
// Append |to_append| to |stack|, skipping any duplicates.
sk_X509_NAME_sort(to_append.get());
size_t num = sk_X509_NAME_num(to_append.get());
for (size_t i = 0; i < num; i++) {
bssl::UniquePtr<X509_NAME> name(sk_X509_NAME_value(to_append.get(), i));
sk_X509_NAME_set(to_append.get(), i, nullptr);
if (i + 1 < num &&
X509_NAME_cmp(name.get(), sk_X509_NAME_value(to_append.get(), i + 1)) ==
0) {
continue;
}
if (!bssl::PushToStack(out, std::move(name))) {
return 0;
}
}
// Sort |out| one last time, to preserve the historical behavior of
// maintaining the sorted list.
sk_X509_NAME_sort(out);
return 1;
}
int SSL_add_bio_cert_subjects_to_stack(STACK_OF(X509_NAME) *out, BIO *bio) {
return add_bio_cert_subjects_to_stack(out, bio, /*allow_empty=*/true);
}
STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) {
bssl::UniquePtr<BIO> in(BIO_new_file(file, "rb"));
if (in == nullptr) {
return nullptr;
}
bssl::UniquePtr<STACK_OF(X509_NAME)> ret(sk_X509_NAME_new_null());
if (ret == nullptr || //
!add_bio_cert_subjects_to_stack(ret.get(), in.get(),
/*allow_empty=*/false)) {
return nullptr;
}
return ret.release();
}
int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *out,
const char *file) {
bssl::UniquePtr<BIO> in(BIO_new_file(file, "rb"));
if (in == nullptr) {
return 0;
}
return SSL_add_bio_cert_subjects_to_stack(out, in.get());
}
int SSL_use_certificate_file(SSL *ssl, const char *file, int type) {
int reason_code;
BIO *in;
int ret = 0;
X509 *x = NULL;
in = BIO_new(BIO_s_file());
if (in == NULL) {
OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB);
goto end;
}
if (BIO_read_filename(in, file) <= 0) {
OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
goto end;
}
if (type == SSL_FILETYPE_ASN1) {
reason_code = ERR_R_ASN1_LIB;
x = d2i_X509_bio(in, NULL);
} else if (type == SSL_FILETYPE_PEM) {
reason_code = ERR_R_PEM_LIB;
x = PEM_read_bio_X509(in, NULL, ssl->ctx->default_passwd_callback,
ssl->ctx->default_passwd_callback_userdata);
} else {
OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE);
goto end;
}
if (x == NULL) {
OPENSSL_PUT_ERROR(SSL, reason_code);
goto end;
}
ret = SSL_use_certificate(ssl, x);
end:
X509_free(x);
BIO_free(in);
return ret;
}
int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type) {
int reason_code, ret = 0;
BIO *in;
RSA *rsa = NULL;
in = BIO_new(BIO_s_file());
if (in == NULL) {
OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB);
goto end;
}
if (BIO_read_filename(in, file) <= 0) {
OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
goto end;
}
if (type == SSL_FILETYPE_ASN1) {
reason_code = ERR_R_ASN1_LIB;
rsa = d2i_RSAPrivateKey_bio(in, NULL);
} else if (type == SSL_FILETYPE_PEM) {
reason_code = ERR_R_PEM_LIB;
rsa =
PEM_read_bio_RSAPrivateKey(in, NULL, ssl->ctx->default_passwd_callback,
ssl->ctx->default_passwd_callback_userdata);
} else {
OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE);
goto end;
}
if (rsa == NULL) {
OPENSSL_PUT_ERROR(SSL, reason_code);
goto end;
}
ret = SSL_use_RSAPrivateKey(ssl, rsa);
RSA_free(rsa);
end:
BIO_free(in);
return ret;
}
int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type) {
int reason_code, ret = 0;
BIO *in;
EVP_PKEY *pkey = NULL;
in = BIO_new(BIO_s_file());
if (in == NULL) {
OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB);
goto end;
}
if (BIO_read_filename(in, file) <= 0) {
OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
goto end;
}
if (type == SSL_FILETYPE_PEM) {
reason_code = ERR_R_PEM_LIB;
pkey = PEM_read_bio_PrivateKey(in, NULL, ssl->ctx->default_passwd_callback,
ssl->ctx->default_passwd_callback_userdata);
} else if (type == SSL_FILETYPE_ASN1) {
reason_code = ERR_R_ASN1_LIB;
pkey = d2i_PrivateKey_bio(in, NULL);
} else {
OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE);
goto end;
}
if (pkey == NULL) {
OPENSSL_PUT_ERROR(SSL, reason_code);
goto end;
}
ret = SSL_use_PrivateKey(ssl, pkey);
EVP_PKEY_free(pkey);
end:
BIO_free(in);
return ret;
}
int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type) {
int reason_code;
BIO *in;
int ret = 0;
X509 *x = NULL;
in = BIO_new(BIO_s_file());
if (in == NULL) {
OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB);
goto end;
}
if (BIO_read_filename(in, file) <= 0) {
OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
goto end;
}
if (type == SSL_FILETYPE_ASN1) {
reason_code = ERR_R_ASN1_LIB;
x = d2i_X509_bio(in, NULL);
} else if (type == SSL_FILETYPE_PEM) {
reason_code = ERR_R_PEM_LIB;
x = PEM_read_bio_X509(in, NULL, ctx->default_passwd_callback,
ctx->default_passwd_callback_userdata);
} else {
OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE);
goto end;
}
if (x == NULL) {
OPENSSL_PUT_ERROR(SSL, reason_code);
goto end;
}
ret = SSL_CTX_use_certificate(ctx, x);
end:
X509_free(x);
BIO_free(in);
return ret;
}
int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type) {
int reason_code, ret = 0;
BIO *in;
RSA *rsa = NULL;
in = BIO_new(BIO_s_file());
if (in == NULL) {
OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB);
goto end;
}
if (BIO_read_filename(in, file) <= 0) {
OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
goto end;
}
if (type == SSL_FILETYPE_ASN1) {
reason_code = ERR_R_ASN1_LIB;
rsa = d2i_RSAPrivateKey_bio(in, NULL);
} else if (type == SSL_FILETYPE_PEM) {
reason_code = ERR_R_PEM_LIB;
rsa = PEM_read_bio_RSAPrivateKey(in, NULL, ctx->default_passwd_callback,
ctx->default_passwd_callback_userdata);
} else {
OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE);
goto end;
}
if (rsa == NULL) {
OPENSSL_PUT_ERROR(SSL, reason_code);
goto end;
}
ret = SSL_CTX_use_RSAPrivateKey(ctx, rsa);
RSA_free(rsa);
end:
BIO_free(in);
return ret;
}
int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type) {
int reason_code, ret = 0;
BIO *in;
EVP_PKEY *pkey = NULL;
in = BIO_new(BIO_s_file());
if (in == NULL) {
OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB);
goto end;
}
if (BIO_read_filename(in, file) <= 0) {
OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
goto end;
}
if (type == SSL_FILETYPE_PEM) {
reason_code = ERR_R_PEM_LIB;
pkey = PEM_read_bio_PrivateKey(in, NULL, ctx->default_passwd_callback,
ctx->default_passwd_callback_userdata);
} else if (type == SSL_FILETYPE_ASN1) {
reason_code = ERR_R_ASN1_LIB;
pkey = d2i_PrivateKey_bio(in, NULL);
} else {
OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE);
goto end;
}
if (pkey == NULL) {
OPENSSL_PUT_ERROR(SSL, reason_code);
goto end;
}
ret = SSL_CTX_use_PrivateKey(ctx, pkey);
EVP_PKEY_free(pkey);
end:
BIO_free(in);
return ret;
}
// Read a file that contains our certificate in "PEM" format, possibly followed
// by a sequence of CA certificates that should be sent to the peer in the
// Certificate message.
int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file) {
BIO *in;
int ret = 0;
X509 *x = NULL;
ERR_clear_error(); // clear error stack for SSL_CTX_use_certificate()
in = BIO_new(BIO_s_file());
if (in == NULL) {
OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB);
goto end;
}
if (BIO_read_filename(in, file) <= 0) {
OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
goto end;
}
x = PEM_read_bio_X509_AUX(in, NULL, ctx->default_passwd_callback,
ctx->default_passwd_callback_userdata);
if (x == NULL) {
OPENSSL_PUT_ERROR(SSL, ERR_R_PEM_LIB);
goto end;
}
ret = SSL_CTX_use_certificate(ctx, x);
if (ERR_peek_error() != 0) {
ret = 0; // Key/certificate mismatch doesn't imply ret==0 ...
}
if (ret) {
// If we could set up our certificate, now proceed to the CA
// certificates.
X509 *ca;
int r;
uint32_t err;
SSL_CTX_clear_chain_certs(ctx);
while ((ca = PEM_read_bio_X509(in, NULL, ctx->default_passwd_callback,
ctx->default_passwd_callback_userdata)) !=
NULL) {
r = SSL_CTX_add0_chain_cert(ctx, ca);
if (!r) {
X509_free(ca);
ret = 0;
goto end;
}
// Note that we must not free r if it was successfully added to the chain
// (while we must free the main certificate, since its reference count is
// increased by SSL_CTX_use_certificate).
}
// When the while loop ends, it's usually just EOF.
err = ERR_peek_last_error();
if (ERR_GET_LIB(err) == ERR_LIB_PEM &&
ERR_GET_REASON(err) == PEM_R_NO_START_LINE) {
ERR_clear_error();
} else {
ret = 0; // some real error
}
}
end:
X509_free(x);
BIO_free(in);
return ret;
}
void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) {
ctx->default_passwd_callback = cb;
}
pem_password_cb *SSL_CTX_get_default_passwd_cb(const SSL_CTX *ctx) {
return ctx->default_passwd_callback;
}
void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *data) {
ctx->default_passwd_callback_userdata = data;
}
void *SSL_CTX_get_default_passwd_cb_userdata(const SSL_CTX *ctx) {
return ctx->default_passwd_callback_userdata;
}