diff options
Diffstat (limited to 'src/ssl/ssl_file.c')
| -rw-r--r-- | src/ssl/ssl_file.c | 623 |
1 files changed, 623 insertions, 0 deletions
diff --git a/src/ssl/ssl_file.c b/src/ssl/ssl_file.c new file mode 100644 index 0000000..88ad5b7 --- /dev/null +++ b/src/ssl/ssl_file.c @@ -0,0 +1,623 @@ +/* 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/bio.h> +#include <openssl/err.h> +#include <openssl/mem.h> +#include <openssl/pem.h> +#include <openssl/stack.h> +#include <openssl/x509.h> + +#include "../crypto/directory.h" +#include "internal.h" + + +static int xname_cmp(const X509_NAME **a, const X509_NAME **b) { + return X509_NAME_cmp(*a, *b); +} + +/* TODO(davidben): Is there any reason this doesn't call + * |SSL_add_file_cert_subjects_to_stack|? */ +STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) { + BIO *in; + X509 *x = NULL; + X509_NAME *xn = NULL; + STACK_OF(X509_NAME) *ret = NULL, *sk; + + sk = sk_X509_NAME_new(xname_cmp); + in = BIO_new(BIO_s_file()); + + if (sk == NULL || in == NULL) { + OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE); + goto err; + } + + if (!BIO_read_filename(in, file)) { + goto err; + } + + for (;;) { + if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) { + break; + } + if (ret == NULL) { + ret = sk_X509_NAME_new_null(); + if (ret == NULL) { + OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE); + goto err; + } + } + xn = X509_get_subject_name(x); + if (xn == NULL) { + goto err; + } + + /* check for duplicates */ + xn = X509_NAME_dup(xn); + if (xn == NULL) { + goto err; + } + if (sk_X509_NAME_find(sk, NULL, xn)) { + X509_NAME_free(xn); + } else { + sk_X509_NAME_push(sk, xn); + sk_X509_NAME_push(ret, xn); + } + } + + if (0) { + err: + sk_X509_NAME_pop_free(ret, X509_NAME_free); + ret = NULL; + } + + sk_X509_NAME_free(sk); + BIO_free(in); + X509_free(x); + if (ret != NULL) { + ERR_clear_error(); + } + return ret; +} + +int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, + const char *file) { + BIO *in; + X509 *x = NULL; + X509_NAME *xn = NULL; + int ret = 1; + int (*oldcmp)(const X509_NAME **a, const X509_NAME **b); + + oldcmp = sk_X509_NAME_set_cmp_func(stack, xname_cmp); + in = BIO_new(BIO_s_file()); + + if (in == NULL) { + OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE); + goto err; + } + + if (!BIO_read_filename(in, file)) { + goto err; + } + + for (;;) { + if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) { + break; + } + xn = X509_get_subject_name(x); + if (xn == NULL) { + goto err; + } + xn = X509_NAME_dup(xn); + if (xn == NULL) { + goto err; + } + if (sk_X509_NAME_find(stack, NULL, xn)) { + X509_NAME_free(xn); + } else { + sk_X509_NAME_push(stack, xn); + } + } + + ERR_clear_error(); + + if (0) { + err: + ret = 0; + } + + BIO_free(in); + X509_free(x); + + (void) sk_X509_NAME_set_cmp_func(stack, oldcmp); + + return ret; +} + +/* Add a directory of certs to a stack. + * + * \param stack the stack to append to. + * \param dir the directory to append from. All files in this directory will be + * examined as potential certs. Any that are acceptable to + * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will + * be included. + * \return 1 for success, 0 for failure. Note that in the case of failure some + * certs may have been added to \c stack. */ +int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, + const char *dir) { + OPENSSL_DIR_CTX *d = NULL; + const char *filename; + int ret = 0; + + /* Note that a side effect is that the CAs will be sorted by name */ + while ((filename = OPENSSL_DIR_read(&d, dir))) { + char buf[1024]; + int r; + + if (strlen(dir) + strlen(filename) + 2 > sizeof(buf)) { + OPENSSL_PUT_ERROR(SSL, SSL_R_PATH_TOO_LONG); + goto err; + } + + r = BIO_snprintf(buf, sizeof buf, "%s/%s", dir, filename); + if (r <= 0 || r >= (int)sizeof(buf) || + !SSL_add_file_cert_subjects_to_stack(stack, buf)) { + goto err; + } + } + + if (errno) { + OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB); + ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')"); + goto err; + } + + ret = 1; + +err: + if (d) { + OPENSSL_DIR_end(&d); + } + return ret; +} + +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; +} + +void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *data) { + ctx->default_passwd_callback_userdata = data; +} + +IMPLEMENT_PEM_rw(SSL_SESSION, SSL_SESSION, PEM_STRING_SSL_SESSION, SSL_SESSION) |