*/
#include <stdio.h>
-#include "ssl_locl.h"
-#include "record/record_locl.h"
+#include "ssl_local.h"
+#include "record/record_local.h"
#include "internal/ktls.h"
#include "internal/cryptlib.h"
#include <openssl/comp.h>
#include <openssl/kdf.h>
#include <openssl/rand.h>
#include <openssl/obj_mac.h>
+#include <openssl/core_names.h>
#include <openssl/trace.h>
/* seed1 through seed5 are concatenated */
unsigned char *out, size_t olen, int fatal)
{
const EVP_MD *md = ssl_prf_md(s);
- EVP_PKEY_CTX *pctx = NULL;
- int ret = 0;
+ EVP_KDF *kdf;
+ EVP_KDF_CTX *kctx = NULL;
+ OSSL_PARAM params[8], *p = params;
+ const char *mdname;
if (md == NULL) {
/* Should never happen */
SSLerr(SSL_F_TLS1_PRF, ERR_R_INTERNAL_ERROR);
return 0;
}
- pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_TLS1_PRF, NULL);
- if (pctx == NULL || EVP_PKEY_derive_init(pctx) <= 0
- || EVP_PKEY_CTX_set_tls1_prf_md(pctx, md) <= 0
- || EVP_PKEY_CTX_set1_tls1_prf_secret(pctx, sec, (int)slen) <= 0
- || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed1, (int)seed1_len) <= 0
- || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed2, (int)seed2_len) <= 0
- || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed3, (int)seed3_len) <= 0
- || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed4, (int)seed4_len) <= 0
- || EVP_PKEY_CTX_add1_tls1_prf_seed(pctx, seed5, (int)seed5_len) <= 0
- || EVP_PKEY_derive(pctx, out, &olen) <= 0) {
- if (fatal)
- SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_PRF,
- ERR_R_INTERNAL_ERROR);
- else
- SSLerr(SSL_F_TLS1_PRF, ERR_R_INTERNAL_ERROR);
+ kdf = EVP_KDF_fetch(s->ctx->libctx, OSSL_KDF_NAME_TLS1_PRF, s->ctx->propq);
+ if (kdf == NULL)
goto err;
+ kctx = EVP_KDF_CTX_new(kdf);
+ EVP_KDF_free(kdf);
+ if (kctx == NULL)
+ goto err;
+ mdname = EVP_MD_name(md);
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
+ (char *)mdname, 0);
+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SECRET,
+ (unsigned char *)sec,
+ (size_t)slen);
+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SEED,
+ (void *)seed1, (size_t)seed1_len);
+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SEED,
+ (void *)seed2, (size_t)seed2_len);
+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SEED,
+ (void *)seed3, (size_t)seed3_len);
+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SEED,
+ (void *)seed4, (size_t)seed4_len);
+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SEED,
+ (void *)seed5, (size_t)seed5_len);
+ *p = OSSL_PARAM_construct_end();
+ if (EVP_KDF_CTX_set_params(kctx, params)
+ && EVP_KDF_derive(kctx, out, olen)) {
+ EVP_KDF_CTX_free(kctx);
+ return 1;
}
- ret = 1;
-
err:
- EVP_PKEY_CTX_free(pctx);
- return ret;
+ if (fatal)
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_PRF,
+ ERR_R_INTERNAL_ERROR);
+ else
+ SSLerr(SSL_F_TLS1_PRF, ERR_R_INTERNAL_ERROR);
+ EVP_KDF_CTX_free(kctx);
+ return 0;
}
static int tls1_generate_key_block(SSL *s, unsigned char *km, size_t num)
/* Calls SSLfatal() as required */
ret = tls1_PRF(s,
TLS_MD_KEY_EXPANSION_CONST,
- TLS_MD_KEY_EXPANSION_CONST_SIZE, s->s3->server_random,
- SSL3_RANDOM_SIZE, s->s3->client_random, SSL3_RANDOM_SIZE,
+ TLS_MD_KEY_EXPANSION_CONST_SIZE, s->s3.server_random,
+ SSL3_RANDOM_SIZE, s->s3.client_random, SSL3_RANDOM_SIZE,
NULL, 0, NULL, 0, s->session->master_key,
s->session->master_key_length, km, num, 1);
return ret;
}
+#ifndef OPENSSL_NO_KTLS
+ /*
+ * Count the number of records that were not processed yet from record boundary.
+ *
+ * This function assumes that there are only fully formed records read in the
+ * record layer. If read_ahead is enabled, then this might be false and this
+ * function will fail.
+ */
+static int count_unprocessed_records(SSL *s)
+{
+ SSL3_BUFFER *rbuf = RECORD_LAYER_get_rbuf(&s->rlayer);
+ PACKET pkt, subpkt;
+ int count = 0;
+
+ if (!PACKET_buf_init(&pkt, rbuf->buf + rbuf->offset, rbuf->left))
+ return -1;
+
+ while (PACKET_remaining(&pkt) > 0) {
+ /* Skip record type and version */
+ if (!PACKET_forward(&pkt, 3))
+ return -1;
+
+ /* Read until next record */
+ if (PACKET_get_length_prefixed_2(&pkt, &subpkt))
+ return -1;
+
+ count += 1;
+ }
+
+ return count;
+}
+#endif
+
int tls1_change_cipher_state(SSL *s, int which)
{
unsigned char *p, *mac_secret;
size_t n, i, j, k, cl;
int reuse_dd = 0;
#ifndef OPENSSL_NO_KTLS
+# ifdef __FreeBSD__
+ struct tls_enable crypto_info;
+# else
struct tls12_crypto_info_aes_gcm_128 crypto_info;
- BIO *wbio;
unsigned char geniv[12];
+ int count_unprocessed;
+ int bit;
+# endif
+ BIO *bio;
#endif
- c = s->s3->tmp.new_sym_enc;
- m = s->s3->tmp.new_hash;
- mac_type = s->s3->tmp.new_mac_pkey_type;
+ c = s->s3.tmp.new_sym_enc;
+ m = s->s3.tmp.new_hash;
+ mac_type = s->s3.tmp.new_mac_pkey_type;
#ifndef OPENSSL_NO_COMP
- comp = s->s3->tmp.new_compression;
+ comp = s->s3.tmp.new_compression;
#endif
if (which & SSL3_CC_READ) {
if (s->ext.use_etm)
- s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
+ s->s3.flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
else
- s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
+ s->s3.flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_READ;
- if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
+ if (s->s3.tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
s->mac_flags |= SSL_MAC_FLAG_READ_MAC_STREAM;
else
s->mac_flags &= ~SSL_MAC_FLAG_READ_MAC_STREAM;
*/
if (!SSL_IS_DTLS(s))
RECORD_LAYER_reset_read_sequence(&s->rlayer);
- mac_secret = &(s->s3->read_mac_secret[0]);
- mac_secret_size = &(s->s3->read_mac_secret_size);
+ mac_secret = &(s->s3.read_mac_secret[0]);
+ mac_secret_size = &(s->s3.read_mac_secret_size);
} else {
s->statem.enc_write_state = ENC_WRITE_STATE_INVALID;
if (s->ext.use_etm)
- s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
+ s->s3.flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
else
- s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
+ s->s3.flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE;
- if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
+ if (s->s3.tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
s->mac_flags |= SSL_MAC_FLAG_WRITE_MAC_STREAM;
else
s->mac_flags &= ~SSL_MAC_FLAG_WRITE_MAC_STREAM;
*/
if (!SSL_IS_DTLS(s))
RECORD_LAYER_reset_write_sequence(&s->rlayer);
- mac_secret = &(s->s3->write_mac_secret[0]);
- mac_secret_size = &(s->s3->write_mac_secret_size);
+ mac_secret = &(s->s3.write_mac_secret[0]);
+ mac_secret_size = &(s->s3.write_mac_secret_size);
}
if (reuse_dd)
EVP_CIPHER_CTX_reset(dd);
- p = s->s3->tmp.key_block;
- i = *mac_secret_size = s->s3->tmp.new_mac_secret_size;
+ p = s->s3.tmp.key_block;
+ i = *mac_secret_size = s->s3.tmp.new_mac_secret_size;
/* TODO(size_t): convert me */
cl = EVP_CIPHER_key_length(c);
n += k;
}
- if (n > s->s3->tmp.key_block_length) {
+ if (n > s->s3.tmp.key_block_length) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
ERR_R_INTERNAL_ERROR);
goto err;
mac_key = EVP_PKEY_new_mac_key(mac_type, NULL, mac_secret,
(int)*mac_secret_size);
if (mac_key == NULL
- || EVP_DigestSignInit(mac_ctx, NULL, m, NULL, mac_key) <= 0) {
+ || EVP_DigestSignInit_ex(mac_ctx, NULL,
+ EVP_MD_name(m), s->ctx->propq,
+ mac_key, s->ctx->libctx) <= 0) {
EVP_PKEY_free(mac_key);
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
ERR_R_INTERNAL_ERROR);
}
} else if (EVP_CIPHER_mode(c) == EVP_CIPH_CCM_MODE) {
int taglen;
- if (s->s3->tmp.
+ if (s->s3.tmp.
new_cipher->algorithm_enc & (SSL_AES128CCM8 | SSL_AES256CCM8))
taglen = EVP_CCM8_TLS_TAG_LEN;
else
if (s->compress)
goto skip_ktls;
- if ((which & SSL3_CC_READ) ||
- ((which & SSL3_CC_WRITE) && (s->mode & SSL_MODE_NO_KTLS_TX)))
+ if (((which & SSL3_CC_READ) && (s->mode & SSL_MODE_NO_KTLS_RX))
+ || ((which & SSL3_CC_WRITE) && (s->mode & SSL_MODE_NO_KTLS_TX)))
goto skip_ktls;
/* ktls supports only the maximum fragment size */
if (ssl_get_max_send_fragment(s) != SSL3_RT_MAX_PLAIN_LENGTH)
goto skip_ktls;
+# ifdef __FreeBSD__
+ memset(&crypto_info, 0, sizeof(crypto_info));
+ switch (s->s3.tmp.new_cipher->algorithm_enc) {
+ case SSL_AES128GCM:
+ case SSL_AES256GCM:
+ crypto_info.cipher_algorithm = CRYPTO_AES_NIST_GCM_16;
+ crypto_info.iv_len = EVP_GCM_TLS_FIXED_IV_LEN;
+ break;
+ case SSL_AES128:
+ case SSL_AES256:
+ if (s->ext.use_etm)
+ goto skip_ktls;
+ switch (s->s3.tmp.new_cipher->algorithm_mac) {
+ case SSL_SHA1:
+ crypto_info.auth_algorithm = CRYPTO_SHA1_HMAC;
+ break;
+ case SSL_SHA256:
+ crypto_info.auth_algorithm = CRYPTO_SHA2_256_HMAC;
+ break;
+ case SSL_SHA384:
+ crypto_info.auth_algorithm = CRYPTO_SHA2_384_HMAC;
+ break;
+ default:
+ goto skip_ktls;
+ }
+ crypto_info.cipher_algorithm = CRYPTO_AES_CBC;
+ crypto_info.iv_len = EVP_CIPHER_iv_length(c);
+ crypto_info.auth_key = ms;
+ crypto_info.auth_key_len = *mac_secret_size;
+ break;
+ default:
+ goto skip_ktls;
+ }
+ crypto_info.cipher_key = key;
+ crypto_info.cipher_key_len = EVP_CIPHER_key_length(c);
+ crypto_info.iv = iv;
+ crypto_info.tls_vmajor = (s->version >> 8) & 0x000000ff;
+ crypto_info.tls_vminor = (s->version & 0x000000ff);
+# else
/* check that cipher is AES_GCM_128 */
if (EVP_CIPHER_nid(c) != NID_aes_128_gcm
|| EVP_CIPHER_mode(c) != EVP_CIPH_GCM_MODE
/* check version is 1.2 */
if (s->version != TLS1_2_VERSION)
goto skip_ktls;
+# endif
- wbio = s->wbio;
- if (!ossl_assert(wbio != NULL)) {
+ if (which & SSL3_CC_WRITE)
+ bio = s->wbio;
+ else
+ bio = s->rbio;
+
+ if (!ossl_assert(bio != NULL)) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_CHANGE_CIPHER_STATE,
ERR_R_INTERNAL_ERROR);
goto err;
}
/* All future data will get encrypted by ktls. Flush the BIO or skip ktls */
- if (BIO_flush(wbio) <= 0)
- goto skip_ktls;
+ if (which & SSL3_CC_WRITE) {
+ if (BIO_flush(bio) <= 0)
+ goto skip_ktls;
+ }
/* ktls doesn't support renegotiation */
- if (BIO_get_ktls_send(s->wbio)) {
+ if ((BIO_get_ktls_send(s->wbio) && (which & SSL3_CC_WRITE)) ||
+ (BIO_get_ktls_recv(s->rbio) && (which & SSL3_CC_READ))) {
SSLfatal(s, SSL_AD_NO_RENEGOTIATION, SSL_F_TLS1_CHANGE_CIPHER_STATE,
ERR_R_INTERNAL_ERROR);
goto err;
}
+# ifndef __FreeBSD__
memset(&crypto_info, 0, sizeof(crypto_info));
crypto_info.info.cipher_type = TLS_CIPHER_AES_GCM_128;
crypto_info.info.version = s->version;
TLS_CIPHER_AES_GCM_128_IV_SIZE);
memcpy(crypto_info.salt, geniv, TLS_CIPHER_AES_GCM_128_SALT_SIZE);
memcpy(crypto_info.key, key, EVP_CIPHER_key_length(c));
- memcpy(crypto_info.rec_seq, &s->rlayer.write_sequence,
- TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE);
+ if (which & SSL3_CC_WRITE)
+ memcpy(crypto_info.rec_seq, &s->rlayer.write_sequence,
+ TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE);
+ else
+ memcpy(crypto_info.rec_seq, &s->rlayer.read_sequence,
+ TLS_CIPHER_AES_GCM_128_REC_SEQ_SIZE);
+
+ if (which & SSL3_CC_READ) {
+ count_unprocessed = count_unprocessed_records(s);
+ if (count_unprocessed < 0)
+ goto skip_ktls;
+
+ /* increment the crypto_info record sequence */
+ while (count_unprocessed) {
+ for (bit = 7; bit >= 0; bit--) { /* increment */
+ ++crypto_info.rec_seq[bit];
+ if (crypto_info.rec_seq[bit] != 0)
+ break;
+ }
+ count_unprocessed--;
+ }
+ }
+# endif
/* ktls works with user provided buffers directly */
- if (BIO_set_ktls(wbio, &crypto_info, which & SSL3_CC_WRITE)) {
- ssl3_release_write_buffer(s);
+ if (BIO_set_ktls(bio, &crypto_info, which & SSL3_CC_WRITE)) {
+ if (which & SSL3_CC_WRITE)
+ ssl3_release_write_buffer(s);
SSL_set_options(s, SSL_OP_NO_RENEGOTIATION);
}
size_t num, mac_secret_size = 0;
int ret = 0;
- if (s->s3->tmp.key_block_length != 0)
+ if (s->s3.tmp.key_block_length != 0)
return 1;
- if (!ssl_cipher_get_evp(s->session, &c, &hash, &mac_type, &mac_secret_size,
- &comp, s->ext.use_etm)) {
+ if (!ssl_cipher_get_evp(s->ctx, s->session, &c, &hash, &mac_type,
+ &mac_secret_size, &comp, s->ext.use_etm)) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS1_SETUP_KEY_BLOCK,
SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
return 0;
}
- s->s3->tmp.new_sym_enc = c;
- s->s3->tmp.new_hash = hash;
- s->s3->tmp.new_mac_pkey_type = mac_type;
- s->s3->tmp.new_mac_secret_size = mac_secret_size;
+ ssl_evp_cipher_free(s->s3.tmp.new_sym_enc);
+ s->s3.tmp.new_sym_enc = c;
+ ssl_evp_md_free(s->s3.tmp.new_hash);
+ s->s3.tmp.new_hash = hash;
+ s->s3.tmp.new_mac_pkey_type = mac_type;
+ s->s3.tmp.new_mac_secret_size = mac_secret_size;
num = EVP_CIPHER_key_length(c) + mac_secret_size + EVP_CIPHER_iv_length(c);
num *= 2;
goto err;
}
- s->s3->tmp.key_block_length = num;
- s->s3->tmp.key_block = p;
+ s->s3.tmp.key_block_length = num;
+ s->s3.tmp.key_block = p;
OSSL_TRACE_BEGIN(TLS) {
BIO_printf(trc_out, "client random\n");
- BIO_dump_indent(trc_out, s->s3->client_random, SSL3_RANDOM_SIZE, 4);
+ BIO_dump_indent(trc_out, s->s3.client_random, SSL3_RANDOM_SIZE, 4);
BIO_printf(trc_out, "server random\n");
- BIO_dump_indent(trc_out, s->s3->server_random, SSL3_RANDOM_SIZE, 4);
+ BIO_dump_indent(trc_out, s->s3.server_random, SSL3_RANDOM_SIZE, 4);
BIO_printf(trc_out, "master key\n");
BIO_dump_indent(trc_out,
s->session->master_key,
* enable vulnerability countermeasure for CBC ciphers with known-IV
* problem (http://www.openssl.org/~bodo/tls-cbc.txt)
*/
- s->s3->need_empty_fragments = 1;
+ s->s3.need_empty_fragments = 1;
if (s->session->cipher != NULL) {
if (s->session->cipher->algorithm_enc == SSL_eNULL)
- s->s3->need_empty_fragments = 0;
+ s->s3.need_empty_fragments = 0;
#ifndef OPENSSL_NO_RC4
if (s->session->cipher->algorithm_enc == SSL_RC4)
- s->s3->need_empty_fragments = 0;
+ s->s3.need_empty_fragments = 0;
#endif
}
}
unsigned char hash[EVP_MAX_MD_SIZE * 2];
size_t hashlen;
/*
- * Digest cached records keeping record buffer (if present): this wont
+ * Digest cached records keeping record buffer (if present): this won't
* affect client auth because we're freezing the buffer at the same
* point (after client key exchange and before certificate verify)
*/
if (!tls1_PRF(s,
TLS_MD_MASTER_SECRET_CONST,
TLS_MD_MASTER_SECRET_CONST_SIZE,
- s->s3->client_random, SSL3_RANDOM_SIZE,
+ s->s3.client_random, SSL3_RANDOM_SIZE,
NULL, 0,
- s->s3->server_random, SSL3_RANDOM_SIZE,
+ s->s3.server_random, SSL3_RANDOM_SIZE,
NULL, 0, p, len, out,
SSL3_MASTER_SECRET_SIZE, 1)) {
/* SSLfatal() already called */
BIO_printf(trc_out, "Premaster Secret:\n");
BIO_dump_indent(trc_out, p, len, 4);
BIO_printf(trc_out, "Client Random:\n");
- BIO_dump_indent(trc_out, s->s3->client_random, SSL3_RANDOM_SIZE, 4);
+ BIO_dump_indent(trc_out, s->s3.client_random, SSL3_RANDOM_SIZE, 4);
BIO_printf(trc_out, "Server Random:\n");
- BIO_dump_indent(trc_out, s->s3->server_random, SSL3_RANDOM_SIZE, 4);
+ BIO_dump_indent(trc_out, s->s3.server_random, SSL3_RANDOM_SIZE, 4);
BIO_printf(trc_out, "Master Secret:\n");
BIO_dump_indent(trc_out,
s->session->master_key,
currentvalpos = 0;
memcpy(val + currentvalpos, (unsigned char *)label, llen);
currentvalpos += llen;
- memcpy(val + currentvalpos, s->s3->client_random, SSL3_RANDOM_SIZE);
+ memcpy(val + currentvalpos, s->s3.client_random, SSL3_RANDOM_SIZE);
currentvalpos += SSL3_RANDOM_SIZE;
- memcpy(val + currentvalpos, s->s3->server_random, SSL3_RANDOM_SIZE);
+ memcpy(val + currentvalpos, s->s3.server_random, SSL3_RANDOM_SIZE);
currentvalpos += SSL3_RANDOM_SIZE;
if (use_context) {
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