/*
* TLSv1 server - read handshake message
- * Copyright (c) 2006-2007, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2006-2014, Jouni Malinen <j@w1.fi>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Alternatively, this software may be distributed under the terms of BSD
- * license.
- *
- * See README and COPYING for more details.
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
*/
#include "includes.h"
#include "common.h"
#include "crypto/md5.h"
#include "crypto/sha1.h"
+#include "crypto/sha256.h"
#include "crypto/tls.h"
#include "x509v3.h"
#include "tlsv1_common.h"
size_t *in_len);
+static int testing_cipher_suite_filter(struct tlsv1_server *conn, u16 suite)
+{
+#ifdef CONFIG_TESTING_OPTIONS
+ if ((conn->test_flags &
+ (TLS_BREAK_SRV_KEY_X_HASH | TLS_BREAK_SRV_KEY_X_SIGNATURE |
+ TLS_DHE_PRIME_511B | TLS_DHE_PRIME_767B | TLS_DHE_PRIME_15 |
+ TLS_DHE_PRIME_58B | TLS_DHE_NON_PRIME)) &&
+ suite != TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 &&
+ suite != TLS_DHE_RSA_WITH_AES_256_CBC_SHA &&
+ suite != TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 &&
+ suite != TLS_DHE_RSA_WITH_AES_128_CBC_SHA &&
+ suite != TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA)
+ return 1;
+#endif /* CONFIG_TESTING_OPTIONS */
+
+ return 0;
+}
+
+
static int tls_process_client_hello(struct tlsv1_server *conn, u8 ct,
const u8 *in_data, size_t *in_len)
{
u16 ext_type, ext_len;
if (ct != TLS_CONTENT_TYPE_HANDSHAKE) {
- wpa_printf(MSG_DEBUG, "TLSv1: Expected Handshake; "
- "received content type 0x%x", ct);
+ tlsv1_server_log(conn, "Expected Handshake; received content type 0x%x",
+ ct);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_UNEXPECTED_MESSAGE);
return -1;
/* HandshakeType msg_type */
if (*pos != TLS_HANDSHAKE_TYPE_CLIENT_HELLO) {
- wpa_printf(MSG_DEBUG, "TLSv1: Received unexpected handshake "
- "message %d (expected ClientHello)", *pos);
+ tlsv1_server_log(conn, "Received unexpected handshake message %d (expected ClientHello)",
+ *pos);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_UNEXPECTED_MESSAGE);
return -1;
}
- wpa_printf(MSG_DEBUG, "TLSv1: Received ClientHello");
+ tlsv1_server_log(conn, "Received ClientHello");
pos++;
/* uint24 length */
len = WPA_GET_BE24(pos);
if (end - pos < 2)
goto decode_error;
conn->client_version = WPA_GET_BE16(pos);
- wpa_printf(MSG_DEBUG, "TLSv1: Client version %d.%d",
- conn->client_version >> 8, conn->client_version & 0xff);
- if (conn->client_version < TLS_VERSION) {
- wpa_printf(MSG_DEBUG, "TLSv1: Unexpected protocol version in "
- "ClientHello");
+ tlsv1_server_log(conn, "Client version %d.%d",
+ conn->client_version >> 8,
+ conn->client_version & 0xff);
+ if (conn->client_version < TLS_VERSION_1) {
+ tlsv1_server_log(conn, "Unexpected protocol version in ClientHello %u.%u",
+ conn->client_version >> 8,
+ conn->client_version & 0xff);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_PROTOCOL_VERSION);
return -1;
}
pos += 2;
+ if (TLS_VERSION == TLS_VERSION_1)
+ conn->rl.tls_version = TLS_VERSION_1;
+#ifdef CONFIG_TLSV12
+ else if (conn->client_version >= TLS_VERSION_1_2)
+ conn->rl.tls_version = TLS_VERSION_1_2;
+#endif /* CONFIG_TLSV12 */
+ else if (conn->client_version > TLS_VERSION_1_1)
+ conn->rl.tls_version = TLS_VERSION_1_1;
+ else
+ conn->rl.tls_version = conn->client_version;
+ tlsv1_server_log(conn, "Using TLS v%s",
+ tls_version_str(conn->rl.tls_version));
+
/* Random random */
if (end - pos < TLS_RANDOM_LEN)
goto decode_error;
cipher_suite = 0;
for (i = 0; !cipher_suite && i < conn->num_cipher_suites; i++) {
+ if (testing_cipher_suite_filter(conn, conn->cipher_suites[i]))
+ continue;
c = pos;
for (j = 0; j < num_suites; j++) {
u16 tmp = WPA_GET_BE16(c);
}
pos += num_suites * 2;
if (!cipher_suite) {
- wpa_printf(MSG_INFO, "TLSv1: No supported cipher suite "
- "available");
+ tlsv1_server_log(conn, "No supported cipher suite available");
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_ILLEGAL_PARAMETER);
return -1;
compr_null_found = 1;
}
if (!compr_null_found) {
- wpa_printf(MSG_INFO, "TLSv1: Client does not accept NULL "
- "compression");
+ tlsv1_server_log(conn, "Client does not accept NULL compression");
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_ILLEGAL_PARAMETER);
return -1;
}
if (end - pos == 1) {
- wpa_printf(MSG_DEBUG, "TLSv1: Unexpected extra octet in the "
- "end of ClientHello: 0x%02x", *pos);
+ tlsv1_server_log(conn, "Unexpected extra octet in the end of ClientHello: 0x%02x",
+ *pos);
goto decode_error;
}
ext_len = WPA_GET_BE16(pos);
pos += 2;
- wpa_printf(MSG_DEBUG, "TLSv1: %u bytes of ClientHello "
- "extensions", ext_len);
+ tlsv1_server_log(conn, "%u bytes of ClientHello extensions",
+ ext_len);
if (end - pos != ext_len) {
- wpa_printf(MSG_DEBUG, "TLSv1: Invalid ClientHello "
- "extension list length %u (expected %u)",
- ext_len, (unsigned int) (end - pos));
+ tlsv1_server_log(conn, "Invalid ClientHello extension list length %u (expected %u)",
+ ext_len, (unsigned int) (end - pos));
goto decode_error;
}
while (pos < end) {
if (end - pos < 2) {
- wpa_printf(MSG_DEBUG, "TLSv1: Invalid "
- "extension_type field");
+ tlsv1_server_log(conn, "Invalid extension_type field");
goto decode_error;
}
pos += 2;
if (end - pos < 2) {
- wpa_printf(MSG_DEBUG, "TLSv1: Invalid "
- "extension_data length field");
+ tlsv1_server_log(conn, "Invalid extension_data length field");
goto decode_error;
}
pos += 2;
if (end - pos < ext_len) {
- wpa_printf(MSG_DEBUG, "TLSv1: Invalid "
- "extension_data field");
+ tlsv1_server_log(conn, "Invalid extension_data field");
goto decode_error;
}
- wpa_printf(MSG_DEBUG, "TLSv1: ClientHello Extension "
- "type %u", ext_type);
+ tlsv1_server_log(conn, "ClientHello Extension type %u",
+ ext_type);
wpa_hexdump(MSG_MSGDUMP, "TLSv1: ClientHello "
"Extension data", pos, ext_len);
*in_len = end - in_data;
- wpa_printf(MSG_DEBUG, "TLSv1: ClientHello OK - proceed to "
- "ServerHello");
+ tlsv1_server_log(conn, "ClientHello OK - proceed to ServerHello");
conn->state = SERVER_HELLO;
return 0;
decode_error:
- wpa_printf(MSG_DEBUG, "TLSv1: Failed to decode ClientHello");
+ tlsv1_server_log(conn, "Failed to decode ClientHello");
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
int reason;
if (ct != TLS_CONTENT_TYPE_HANDSHAKE) {
- wpa_printf(MSG_DEBUG, "TLSv1: Expected Handshake; "
- "received content type 0x%x", ct);
+ tlsv1_server_log(conn, "Expected Handshake; received content type 0x%x",
+ ct);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_UNEXPECTED_MESSAGE);
return -1;
left = *in_len;
if (left < 4) {
- wpa_printf(MSG_DEBUG, "TLSv1: Too short Certificate message "
- "(len=%lu)", (unsigned long) left);
+ tlsv1_server_log(conn, "Too short Certificate message (len=%lu)",
+ (unsigned long) left);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
left -= 4;
if (len > left) {
- wpa_printf(MSG_DEBUG, "TLSv1: Unexpected Certificate message "
- "length (len=%lu != left=%lu)",
- (unsigned long) len, (unsigned long) left);
+ tlsv1_server_log(conn, "Unexpected Certificate message length (len=%lu != left=%lu)",
+ (unsigned long) len, (unsigned long) left);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
if (type == TLS_HANDSHAKE_TYPE_CLIENT_KEY_EXCHANGE) {
if (conn->verify_peer) {
- wpa_printf(MSG_DEBUG, "TLSv1: Client did not include "
- "Certificate");
+ tlsv1_server_log(conn, "Client did not include Certificate");
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_UNEXPECTED_MESSAGE);
return -1;
in_len);
}
if (type != TLS_HANDSHAKE_TYPE_CERTIFICATE) {
- wpa_printf(MSG_DEBUG, "TLSv1: Received unexpected handshake "
- "message %d (expected Certificate/"
- "ClientKeyExchange)", type);
+ tlsv1_server_log(conn, "Received unexpected handshake message %d (expected Certificate/ClientKeyExchange)",
+ type);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_UNEXPECTED_MESSAGE);
return -1;
}
- wpa_printf(MSG_DEBUG,
- "TLSv1: Received Certificate (certificate_list len %lu)",
- (unsigned long) len);
+ tlsv1_server_log(conn, "Received Certificate (certificate_list len %lu)",
+ (unsigned long) len);
/*
* opaque ASN.1Cert<2^24-1>;
end = pos + len;
if (end - pos < 3) {
- wpa_printf(MSG_DEBUG, "TLSv1: Too short Certificate "
- "(left=%lu)", (unsigned long) left);
+ tlsv1_server_log(conn, "Too short Certificate (left=%lu)",
+ (unsigned long) left);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
pos += 3;
if ((size_t) (end - pos) != list_len) {
- wpa_printf(MSG_DEBUG, "TLSv1: Unexpected certificate_list "
- "length (len=%lu left=%lu)",
- (unsigned long) list_len,
- (unsigned long) (end - pos));
+ tlsv1_server_log(conn, "Unexpected certificate_list length (len=%lu left=%lu)",
+ (unsigned long) list_len,
+ (unsigned long) (end - pos));
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
idx = 0;
while (pos < end) {
if (end - pos < 3) {
- wpa_printf(MSG_DEBUG, "TLSv1: Failed to parse "
- "certificate_list");
+ tlsv1_server_log(conn, "Failed to parse certificate_list");
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
x509_certificate_chain_free(chain);
pos += 3;
if ((size_t) (end - pos) < cert_len) {
- wpa_printf(MSG_DEBUG, "TLSv1: Unexpected certificate "
- "length (len=%lu left=%lu)",
- (unsigned long) cert_len,
- (unsigned long) (end - pos));
+ tlsv1_server_log(conn, "Unexpected certificate length (len=%lu left=%lu)",
+ (unsigned long) cert_len,
+ (unsigned long) (end - pos));
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
x509_certificate_chain_free(chain);
return -1;
}
- wpa_printf(MSG_DEBUG, "TLSv1: Certificate %lu (len %lu)",
- (unsigned long) idx, (unsigned long) cert_len);
+ tlsv1_server_log(conn, "Certificate %lu (len %lu)",
+ (unsigned long) idx, (unsigned long) cert_len);
if (idx == 0) {
crypto_public_key_free(conn->client_rsa_key);
if (tls_parse_cert(pos, cert_len,
&conn->client_rsa_key)) {
- wpa_printf(MSG_DEBUG, "TLSv1: Failed to parse "
- "the certificate");
+ tlsv1_server_log(conn, "Failed to parse the certificate");
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_BAD_CERTIFICATE);
x509_certificate_chain_free(chain);
cert = x509_certificate_parse(pos, cert_len);
if (cert == NULL) {
- wpa_printf(MSG_DEBUG, "TLSv1: Failed to parse "
- "the certificate");
+ tlsv1_server_log(conn, "Failed to parse the certificate");
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_BAD_CERTIFICATE);
x509_certificate_chain_free(chain);
}
if (x509_certificate_chain_validate(conn->cred->trusted_certs, chain,
- &reason) < 0) {
+ &reason, 0) < 0) {
int tls_reason;
- wpa_printf(MSG_DEBUG, "TLSv1: Server certificate chain "
- "validation failed (reason=%d)", reason);
+ tlsv1_server_log(conn, "Server certificate chain validation failed (reason=%d)",
+ reason);
switch (reason) {
case X509_VALIDATE_BAD_CERTIFICATE:
tls_reason = TLS_ALERT_BAD_CERTIFICATE;
encr_len = WPA_GET_BE16(pos);
pos += 2;
+ if (pos + encr_len > end) {
+ tlsv1_server_log(conn, "Invalid ClientKeyExchange format: encr_len=%u left=%u",
+ encr_len, (unsigned int) (end - pos));
+ tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
+ TLS_ALERT_DECODE_ERROR);
+ return -1;
+ }
outbuflen = outlen = end - pos;
out = os_malloc(outlen >= TLS_PRE_MASTER_SECRET_LEN ?
*/
if (crypto_private_key_decrypt_pkcs1_v15(conn->cred->key,
- pos, end - pos,
+ pos, encr_len,
out, &outlen) < 0) {
wpa_printf(MSG_DEBUG, "TLSv1: Failed to decrypt "
- "PreMasterSecret (encr_len=%d outlen=%lu)",
- (int) (end - pos), (unsigned long) outlen);
+ "PreMasterSecret (encr_len=%u outlen=%lu)",
+ encr_len, (unsigned long) outlen);
use_random = 1;
}
- if (outlen != TLS_PRE_MASTER_SECRET_LEN) {
- wpa_printf(MSG_DEBUG, "TLSv1: Unexpected PreMasterSecret "
- "length %lu", (unsigned long) outlen);
+ if (!use_random && outlen != TLS_PRE_MASTER_SECRET_LEN) {
+ tlsv1_server_log(conn, "Unexpected PreMasterSecret length %lu",
+ (unsigned long) outlen);
use_random = 1;
}
- if (WPA_GET_BE16(out) != conn->client_version) {
- wpa_printf(MSG_DEBUG, "TLSv1: Client version in "
- "ClientKeyExchange does not match with version in "
- "ClientHello");
+ if (!use_random && WPA_GET_BE16(out) != conn->client_version) {
+ tlsv1_server_log(conn, "Client version in ClientKeyExchange does not match with version in ClientHello");
use_random = 1;
}
}
-static int tls_process_client_key_exchange_dh_anon(
+static int tls_process_client_key_exchange_dh(
struct tlsv1_server *conn, const u8 *pos, const u8 *end)
{
const u8 *dh_yc;
u8 *shared;
size_t shared_len;
int res;
+ const u8 *dh_p;
+ size_t dh_p_len;
/*
* struct {
* } ClientDiffieHellmanPublic;
*/
+ tlsv1_server_log(conn, "ClientDiffieHellmanPublic received");
wpa_hexdump(MSG_MSGDUMP, "TLSv1: ClientDiffieHellmanPublic",
pos, end - pos);
}
if (end - pos < 3) {
- wpa_printf(MSG_DEBUG, "TLSv1: Invalid client public value "
- "length");
+ tlsv1_server_log(conn, "Invalid client public value length");
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
dh_yc_len = WPA_GET_BE16(pos);
dh_yc = pos + 2;
- if (dh_yc + dh_yc_len > end) {
- wpa_printf(MSG_DEBUG, "TLSv1: Client public value overflow "
- "(length %d)", dh_yc_len);
+ if (dh_yc_len > end - dh_yc) {
+ tlsv1_server_log(conn, "Client public value overflow (length %d)",
+ dh_yc_len);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
return -1;
}
- shared_len = conn->cred->dh_p_len;
+ tlsv1_server_get_dh_p(conn, &dh_p, &dh_p_len);
+
+ shared_len = dh_p_len;
shared = os_malloc(shared_len);
if (shared == NULL) {
wpa_printf(MSG_DEBUG, "TLSv1: Could not allocate memory for "
/* shared = Yc^secret mod p */
if (crypto_mod_exp(dh_yc, dh_yc_len, conn->dh_secret,
- conn->dh_secret_len,
- conn->cred->dh_p, conn->cred->dh_p_len,
+ conn->dh_secret_len, dh_p, dh_p_len,
shared, &shared_len)) {
os_free(shared);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
const struct tls_cipher_suite *suite;
if (ct != TLS_CONTENT_TYPE_HANDSHAKE) {
- wpa_printf(MSG_DEBUG, "TLSv1: Expected Handshake; "
- "received content type 0x%x", ct);
+ tlsv1_server_log(conn, "Expected Handshake; received content type 0x%x",
+ ct);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_UNEXPECTED_MESSAGE);
return -1;
left = *in_len;
if (left < 4) {
- wpa_printf(MSG_DEBUG, "TLSv1: Too short ClientKeyExchange "
- "(Left=%lu)", (unsigned long) left);
+ tlsv1_server_log(conn, "Too short ClientKeyExchange (Left=%lu)",
+ (unsigned long) left);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
left -= 4;
if (len > left) {
- wpa_printf(MSG_DEBUG, "TLSv1: Mismatch in ClientKeyExchange "
- "length (len=%lu != left=%lu)",
- (unsigned long) len, (unsigned long) left);
+ tlsv1_server_log(conn, "Mismatch in ClientKeyExchange length (len=%lu != left=%lu)",
+ (unsigned long) len, (unsigned long) left);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
end = pos + len;
if (type != TLS_HANDSHAKE_TYPE_CLIENT_KEY_EXCHANGE) {
- wpa_printf(MSG_DEBUG, "TLSv1: Received unexpected handshake "
- "message %d (expected ClientKeyExchange)", type);
+ tlsv1_server_log(conn, "Received unexpected handshake message %d (expected ClientKeyExchange)",
+ type);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_UNEXPECTED_MESSAGE);
return -1;
}
- wpa_printf(MSG_DEBUG, "TLSv1: Received ClientKeyExchange");
+ tlsv1_server_log(conn, "Received ClientKeyExchange");
wpa_hexdump(MSG_DEBUG, "TLSv1: ClientKeyExchange", pos, len);
else
keyx = suite->key_exchange;
- if (keyx == TLS_KEY_X_DH_anon &&
- tls_process_client_key_exchange_dh_anon(conn, pos, end) < 0)
+ if ((keyx == TLS_KEY_X_DH_anon || keyx == TLS_KEY_X_DHE_RSA) &&
+ tls_process_client_key_exchange_dh(conn, pos, end) < 0)
return -1;
- if (keyx != TLS_KEY_X_DH_anon &&
+ if (keyx != TLS_KEY_X_DH_anon && keyx != TLS_KEY_X_DHE_RSA &&
tls_process_client_key_exchange_rsa(conn, pos, end) < 0)
return -1;
const u8 *pos, *end;
size_t left, len;
u8 type;
- size_t hlen, buflen;
- u8 hash[MD5_MAC_LEN + SHA1_MAC_LEN], *hpos, *buf;
- enum { SIGN_ALG_RSA, SIGN_ALG_DSA } alg = SIGN_ALG_RSA;
- u16 slen;
+ size_t hlen;
+ u8 hash[MD5_MAC_LEN + SHA1_MAC_LEN], *hpos;
+ u8 alert;
if (ct == TLS_CONTENT_TYPE_CHANGE_CIPHER_SPEC) {
if (conn->verify_peer) {
- wpa_printf(MSG_DEBUG, "TLSv1: Client did not include "
- "CertificateVerify");
+ tlsv1_server_log(conn, "Client did not include CertificateVerify");
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_UNEXPECTED_MESSAGE);
return -1;
}
if (ct != TLS_CONTENT_TYPE_HANDSHAKE) {
- wpa_printf(MSG_DEBUG, "TLSv1: Expected Handshake; "
- "received content type 0x%x", ct);
+ tlsv1_server_log(conn, "Expected Handshake; received content type 0x%x",
+ ct);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_UNEXPECTED_MESSAGE);
return -1;
left = *in_len;
if (left < 4) {
- wpa_printf(MSG_DEBUG, "TLSv1: Too short CertificateVerify "
- "message (len=%lu)", (unsigned long) left);
+ tlsv1_server_log(conn, "Too short CertificateVerify message (len=%lu)",
+ (unsigned long) left);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
left -= 4;
if (len > left) {
- wpa_printf(MSG_DEBUG, "TLSv1: Unexpected CertificateVerify "
- "message length (len=%lu != left=%lu)",
- (unsigned long) len, (unsigned long) left);
+ tlsv1_server_log(conn, "Unexpected CertificateVerify message length (len=%lu != left=%lu)",
+ (unsigned long) len, (unsigned long) left);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
end = pos + len;
if (type != TLS_HANDSHAKE_TYPE_CERTIFICATE_VERIFY) {
- wpa_printf(MSG_DEBUG, "TLSv1: Received unexpected handshake "
- "message %d (expected CertificateVerify)", type);
+ tlsv1_server_log(conn, "Received unexpected handshake message %d (expected CertificateVerify)",
+ type);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_UNEXPECTED_MESSAGE);
return -1;
}
- wpa_printf(MSG_DEBUG, "TLSv1: Received CertificateVerify");
+ tlsv1_server_log(conn, "Received CertificateVerify");
/*
* struct {
hpos = hash;
- if (alg == SIGN_ALG_RSA) {
- hlen = MD5_MAC_LEN;
- if (conn->verify.md5_cert == NULL ||
- crypto_hash_finish(conn->verify.md5_cert, hpos, &hlen) < 0)
- {
+#ifdef CONFIG_TLSV12
+ if (conn->rl.tls_version == TLS_VERSION_1_2) {
+ /*
+ * RFC 5246, 4.7:
+ * TLS v1.2 adds explicit indication of the used signature and
+ * hash algorithms.
+ *
+ * struct {
+ * HashAlgorithm hash;
+ * SignatureAlgorithm signature;
+ * } SignatureAndHashAlgorithm;
+ */
+ if (end - pos < 2) {
+ tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
+ TLS_ALERT_DECODE_ERROR);
+ return -1;
+ }
+ if (pos[0] != TLS_HASH_ALG_SHA256 ||
+ pos[1] != TLS_SIGN_ALG_RSA) {
+ wpa_printf(MSG_DEBUG, "TLSv1.2: Unsupported hash(%u)/"
+ "signature(%u) algorithm",
+ pos[0], pos[1]);
+ tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
+ TLS_ALERT_INTERNAL_ERROR);
+ return -1;
+ }
+ pos += 2;
+
+ hlen = SHA256_MAC_LEN;
+ if (conn->verify.sha256_cert == NULL ||
+ crypto_hash_finish(conn->verify.sha256_cert, hpos, &hlen) <
+ 0) {
+ conn->verify.sha256_cert = NULL;
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_INTERNAL_ERROR);
- conn->verify.md5_cert = NULL;
- crypto_hash_finish(conn->verify.sha1_cert, NULL, NULL);
- conn->verify.sha1_cert = NULL;
return -1;
}
- hpos += MD5_MAC_LEN;
- } else
- crypto_hash_finish(conn->verify.md5_cert, NULL, NULL);
+ conn->verify.sha256_cert = NULL;
+ } else {
+#endif /* CONFIG_TLSV12 */
+
+ hlen = MD5_MAC_LEN;
+ if (conn->verify.md5_cert == NULL ||
+ crypto_hash_finish(conn->verify.md5_cert, hpos, &hlen) < 0) {
+ tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
+ TLS_ALERT_INTERNAL_ERROR);
+ conn->verify.md5_cert = NULL;
+ crypto_hash_finish(conn->verify.sha1_cert, NULL, NULL);
+ conn->verify.sha1_cert = NULL;
+ return -1;
+ }
+ hpos += MD5_MAC_LEN;
conn->verify.md5_cert = NULL;
hlen = SHA1_MAC_LEN;
}
conn->verify.sha1_cert = NULL;
- if (alg == SIGN_ALG_RSA)
- hlen += MD5_MAC_LEN;
+ hlen += MD5_MAC_LEN;
- wpa_hexdump(MSG_MSGDUMP, "TLSv1: CertificateVerify hash", hash, hlen);
-
- if (end - pos < 2) {
- tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
- TLS_ALERT_DECODE_ERROR);
- return -1;
- }
- slen = WPA_GET_BE16(pos);
- pos += 2;
- if (end - pos < slen) {
- tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
- TLS_ALERT_DECODE_ERROR);
- return -1;
- }
-
- wpa_hexdump(MSG_MSGDUMP, "TLSv1: Signature", pos, end - pos);
- if (conn->client_rsa_key == NULL) {
- wpa_printf(MSG_DEBUG, "TLSv1: No client public key to verify "
- "signature");
- tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
- TLS_ALERT_INTERNAL_ERROR);
- return -1;
- }
-
- buflen = end - pos;
- buf = os_malloc(end - pos);
- if (crypto_public_key_decrypt_pkcs1(conn->client_rsa_key,
- pos, end - pos, buf, &buflen) < 0)
- {
- wpa_printf(MSG_DEBUG, "TLSv1: Failed to decrypt signature");
- os_free(buf);
- tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
- TLS_ALERT_DECRYPT_ERROR);
- return -1;
+#ifdef CONFIG_TLSV12
}
+#endif /* CONFIG_TLSV12 */
- wpa_hexdump_key(MSG_MSGDUMP, "TLSv1: Decrypted Signature",
- buf, buflen);
+ wpa_hexdump(MSG_MSGDUMP, "TLSv1: CertificateVerify hash", hash, hlen);
- if (buflen != hlen || os_memcmp(buf, hash, buflen) != 0) {
- wpa_printf(MSG_DEBUG, "TLSv1: Invalid Signature in "
- "CertificateVerify - did not match with calculated "
- "hash");
- os_free(buf);
- tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
- TLS_ALERT_DECRYPT_ERROR);
+ if (tls_verify_signature(conn->rl.tls_version, conn->client_rsa_key,
+ hash, hlen, pos, end - pos, &alert) < 0) {
+ tlsv1_server_log(conn, "Invalid Signature in CertificateVerify");
+ tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL, alert);
return -1;
}
- os_free(buf);
-
*in_len = end - in_data;
conn->state = CHANGE_CIPHER_SPEC;
size_t left;
if (ct != TLS_CONTENT_TYPE_CHANGE_CIPHER_SPEC) {
- wpa_printf(MSG_DEBUG, "TLSv1: Expected ChangeCipherSpec; "
- "received content type 0x%x", ct);
+ tlsv1_server_log(conn, "Expected ChangeCipherSpec; received content type 0x%x",
+ ct);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_UNEXPECTED_MESSAGE);
return -1;
left = *in_len;
if (left < 1) {
- wpa_printf(MSG_DEBUG, "TLSv1: Too short ChangeCipherSpec");
+ tlsv1_server_log(conn, "Too short ChangeCipherSpec");
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
}
if (*pos != TLS_CHANGE_CIPHER_SPEC) {
- wpa_printf(MSG_DEBUG, "TLSv1: Expected ChangeCipherSpec; "
- "received data 0x%x", *pos);
+ tlsv1_server_log(conn, "Expected ChangeCipherSpec; received data 0x%x",
+ *pos);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_UNEXPECTED_MESSAGE);
return -1;
}
- wpa_printf(MSG_DEBUG, "TLSv1: Received ChangeCipherSpec");
+ tlsv1_server_log(conn, "Received ChangeCipherSpec");
if (tlsv1_record_change_read_cipher(&conn->rl) < 0) {
wpa_printf(MSG_DEBUG, "TLSv1: Failed to change read cipher "
"for record layer");
u8 verify_data[TLS_VERIFY_DATA_LEN];
u8 hash[MD5_MAC_LEN + SHA1_MAC_LEN];
+#ifdef CONFIG_TESTING_OPTIONS
+ if ((conn->test_flags &
+ (TLS_BREAK_SRV_KEY_X_HASH | TLS_BREAK_SRV_KEY_X_SIGNATURE)) &&
+ !conn->test_failure_reported) {
+ tlsv1_server_log(conn, "TEST-FAILURE: Client Finished received after invalid ServerKeyExchange");
+ conn->test_failure_reported = 1;
+ }
+
+ if ((conn->test_flags & TLS_DHE_PRIME_15) &&
+ !conn->test_failure_reported) {
+ tlsv1_server_log(conn, "TEST-FAILURE: Client Finished received after bogus DHE \"prime\" 15");
+ conn->test_failure_reported = 1;
+ }
+
+ if ((conn->test_flags & TLS_DHE_PRIME_58B) &&
+ !conn->test_failure_reported) {
+ tlsv1_server_log(conn, "TEST-FAILURE: Client Finished received after short 58-bit DHE prime in long container");
+ conn->test_failure_reported = 1;
+ }
+
+ if ((conn->test_flags & TLS_DHE_PRIME_511B) &&
+ !conn->test_failure_reported) {
+ tlsv1_server_log(conn, "TEST-WARNING: Client Finished received after short 511-bit DHE prime (insecure)");
+ conn->test_failure_reported = 1;
+ }
+
+ if ((conn->test_flags & TLS_DHE_PRIME_767B) &&
+ !conn->test_failure_reported) {
+ tlsv1_server_log(conn, "TEST-NOTE: Client Finished received after 767-bit DHE prime (relatively insecure)");
+ conn->test_failure_reported = 1;
+ }
+
+ if ((conn->test_flags & TLS_DHE_NON_PRIME) &&
+ !conn->test_failure_reported) {
+ tlsv1_server_log(conn, "TEST-NOTE: Client Finished received after non-prime claimed as DHE prime");
+ conn->test_failure_reported = 1;
+ }
+#endif /* CONFIG_TESTING_OPTIONS */
+
if (ct != TLS_CONTENT_TYPE_HANDSHAKE) {
- wpa_printf(MSG_DEBUG, "TLSv1: Expected Finished; "
- "received content type 0x%x", ct);
+ tlsv1_server_log(conn, "Expected Finished; received content type 0x%x",
+ ct);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_UNEXPECTED_MESSAGE);
return -1;
left = *in_len;
if (left < 4) {
- wpa_printf(MSG_DEBUG, "TLSv1: Too short record (left=%lu) for "
- "Finished",
- (unsigned long) left);
+ tlsv1_server_log(conn, "Too short record (left=%lu) forFinished",
+ (unsigned long) left);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
left -= 4;
if (len > left) {
- wpa_printf(MSG_DEBUG, "TLSv1: Too short buffer for Finished "
- "(len=%lu > left=%lu)",
- (unsigned long) len, (unsigned long) left);
+ tlsv1_server_log(conn, "Too short buffer for Finished (len=%lu > left=%lu)",
+ (unsigned long) len, (unsigned long) left);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
}
end = pos + len;
if (len != TLS_VERIFY_DATA_LEN) {
- wpa_printf(MSG_DEBUG, "TLSv1: Unexpected verify_data length "
- "in Finished: %lu (expected %d)",
- (unsigned long) len, TLS_VERIFY_DATA_LEN);
+ tlsv1_server_log(conn, "Unexpected verify_data length in Finished: %lu (expected %d)",
+ (unsigned long) len, TLS_VERIFY_DATA_LEN);
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
wpa_hexdump(MSG_MSGDUMP, "TLSv1: verify_data in Finished",
pos, TLS_VERIFY_DATA_LEN);
+#ifdef CONFIG_TLSV12
+ if (conn->rl.tls_version >= TLS_VERSION_1_2) {
+ hlen = SHA256_MAC_LEN;
+ if (conn->verify.sha256_client == NULL ||
+ crypto_hash_finish(conn->verify.sha256_client, hash, &hlen)
+ < 0) {
+ tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
+ TLS_ALERT_INTERNAL_ERROR);
+ conn->verify.sha256_client = NULL;
+ return -1;
+ }
+ conn->verify.sha256_client = NULL;
+ } else {
+#endif /* CONFIG_TLSV12 */
+
hlen = MD5_MAC_LEN;
if (conn->verify.md5_client == NULL ||
crypto_hash_finish(conn->verify.md5_client, hash, &hlen) < 0) {
return -1;
}
conn->verify.sha1_client = NULL;
+ hlen = MD5_MAC_LEN + SHA1_MAC_LEN;
+
+#ifdef CONFIG_TLSV12
+ }
+#endif /* CONFIG_TLSV12 */
- if (tls_prf(conn->master_secret, TLS_MASTER_SECRET_LEN,
- "client finished", hash, MD5_MAC_LEN + SHA1_MAC_LEN,
+ if (tls_prf(conn->rl.tls_version,
+ conn->master_secret, TLS_MASTER_SECRET_LEN,
+ "client finished", hash, hlen,
verify_data, TLS_VERIFY_DATA_LEN)) {
wpa_printf(MSG_DEBUG, "TLSv1: Failed to derive verify_data");
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
wpa_hexdump_key(MSG_DEBUG, "TLSv1: verify_data (client)",
verify_data, TLS_VERIFY_DATA_LEN);
- if (os_memcmp(pos, verify_data, TLS_VERIFY_DATA_LEN) != 0) {
- wpa_printf(MSG_INFO, "TLSv1: Mismatch in verify_data");
+ if (os_memcmp_const(pos, verify_data, TLS_VERIFY_DATA_LEN) != 0) {
+ tlsv1_server_log(conn, "Mismatch in verify_data");
return -1;
}
- wpa_printf(MSG_DEBUG, "TLSv1: Received Finished");
+ tlsv1_server_log(conn, "Received Finished");
*in_len = end - in_data;
if (conn->use_session_ticket) {
/* Abbreviated handshake using session ticket; RFC 4507 */
- wpa_printf(MSG_DEBUG, "TLSv1: Abbreviated handshake completed "
- "successfully");
+ tlsv1_server_log(conn, "Abbreviated handshake completed successfully");
conn->state = ESTABLISHED;
} else {
/* Full handshake */
{
if (ct == TLS_CONTENT_TYPE_ALERT) {
if (*len < 2) {
- wpa_printf(MSG_DEBUG, "TLSv1: Alert underflow");
+ tlsv1_server_log(conn, "Alert underflow");
tlsv1_server_alert(conn, TLS_ALERT_LEVEL_FATAL,
TLS_ALERT_DECODE_ERROR);
return -1;
}
- wpa_printf(MSG_DEBUG, "TLSv1: Received alert %d:%d",
- buf[0], buf[1]);
+ tlsv1_server_log(conn, "Received alert %d:%d", buf[0], buf[1]);
*len = 2;
conn->state = FAILED;
return -1;
return -1;
break;
default:
- wpa_printf(MSG_DEBUG, "TLSv1: Unexpected state %d "
- "while processing received message",
- conn->state);
+ tlsv1_server_log(conn, "Unexpected state %d while processing received message",
+ conn->state);
return -1;
}
projects / mech_eap.git / blobdiff