169 lines
4.1 KiB
C
Executable file
169 lines
4.1 KiB
C
Executable file
/* $OpenBSD: tls_keypair.c,v 1.8 2021/01/05 17:37:12 jsing Exp $ */
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/*
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* Copyright (c) 2014 Joel Sing <jsing@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <openssl/bio.h>
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#include <openssl/err.h>
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#include <openssl/pem.h>
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#include <tls.h>
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#include "tls_internal.h"
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struct tls_keypair *
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tls_keypair_new(void)
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{
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return calloc(1, sizeof(struct tls_keypair));
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}
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static int
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tls_keypair_pubkey_hash(struct tls_keypair *keypair, struct tls_error *error)
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{
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X509 *cert = NULL;
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int rv = -1;
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free(keypair->pubkey_hash);
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keypair->pubkey_hash = NULL;
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if (keypair->cert_mem == NULL) {
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rv = 0;
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goto done;
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}
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if (tls_keypair_load_cert(keypair, error, &cert) == -1)
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goto err;
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if (tls_cert_pubkey_hash(cert, &keypair->pubkey_hash) == -1)
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goto err;
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rv = 0;
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err:
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X509_free(cert);
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done:
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return (rv);
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}
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void
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tls_keypair_clear_key(struct tls_keypair *keypair)
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{
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freezero(keypair->key_mem, keypair->key_len);
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keypair->key_mem = NULL;
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keypair->key_len = 0;
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}
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int
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tls_keypair_set_cert_file(struct tls_keypair *keypair, struct tls_error *error,
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const char *cert_file)
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{
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if (tls_config_load_file(error, "certificate", cert_file,
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&keypair->cert_mem, &keypair->cert_len) == -1)
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return -1;
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return tls_keypair_pubkey_hash(keypair, error);
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}
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int
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tls_keypair_set_cert_mem(struct tls_keypair *keypair, struct tls_error *error,
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const uint8_t *cert, size_t len)
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{
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if (tls_set_mem(&keypair->cert_mem, &keypair->cert_len, cert, len) == -1)
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return -1;
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return tls_keypair_pubkey_hash(keypair, error);
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}
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int
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tls_keypair_set_key_file(struct tls_keypair *keypair, struct tls_error *error,
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const char *key_file)
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{
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tls_keypair_clear_key(keypair);
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return tls_config_load_file(error, "key", key_file,
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&keypair->key_mem, &keypair->key_len);
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}
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int
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tls_keypair_set_key_mem(struct tls_keypair *keypair, struct tls_error *error,
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const uint8_t *key, size_t len)
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{
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tls_keypair_clear_key(keypair);
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return tls_set_mem(&keypair->key_mem, &keypair->key_len, key, len);
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}
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int
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tls_keypair_set_ocsp_staple_file(struct tls_keypair *keypair,
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struct tls_error *error, const char *ocsp_file)
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{
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return tls_config_load_file(error, "ocsp", ocsp_file,
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&keypair->ocsp_staple, &keypair->ocsp_staple_len);
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}
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int
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tls_keypair_set_ocsp_staple_mem(struct tls_keypair *keypair,
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struct tls_error *error, const uint8_t *staple, size_t len)
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{
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return tls_set_mem(&keypair->ocsp_staple, &keypair->ocsp_staple_len,
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staple, len);
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}
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void
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tls_keypair_free(struct tls_keypair *keypair)
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{
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if (keypair == NULL)
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return;
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tls_keypair_clear_key(keypair);
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free(keypair->cert_mem);
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free(keypair->ocsp_staple);
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free(keypair->pubkey_hash);
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free(keypair);
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}
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int
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tls_keypair_load_cert(struct tls_keypair *keypair, struct tls_error *error,
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X509 **cert)
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{
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char *errstr = "unknown";
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BIO *cert_bio = NULL;
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unsigned long ssl_err;
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int rv = -1;
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X509_free(*cert);
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*cert = NULL;
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if (keypair->cert_mem == NULL) {
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tls_error_set(error, "keypair has no certificate");
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goto err;
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}
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if ((cert_bio = BIO_new_mem_buf(keypair->cert_mem,
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keypair->cert_len)) == NULL) {
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tls_error_set(error, "failed to create certificate bio");
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goto err;
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}
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if ((*cert = PEM_read_bio_X509(cert_bio, NULL, tls_password_cb,
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NULL)) == NULL) {
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if ((ssl_err = ERR_peek_error()) != 0)
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errstr = ERR_error_string(ssl_err, NULL);
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tls_error_set(error, "failed to load certificate: %s", errstr);
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goto err;
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}
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rv = 0;
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err:
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BIO_free(cert_bio);
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return (rv);
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}
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