Remove tls1_alert_code().

After running the preprocessor, this function becomes:

  switch (code) {
  case 0:
   return (0);
  case 10:
   return (10);
  case 20:
   return (20);
  ...
  }

Its intended purpose was to prevent SSLv3 alerts being sent from TLS code,
however now that we've removed "no_certificate" from LibreSSL's reach, it
no longer does anything useful.

ok tb@

3 files changed, 3 insertions, 73 deletions

diff --git a/lib/libssl/ssl_locl.h b/lib/libssl/ssl_locl.h
index df115725a0c..e6b55765451 100644
--- a/lib/libssl/ssl_locl.h
+++ b/lib/libssl/ssl_locl.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssl_locl.h,v 1.347 2021/05/16 15:49:01 jsing Exp $ */
+/* $OpenBSD: ssl_locl.h,v 1.348 2021/06/13 15:34:41 jsing Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -1257,7 +1257,6 @@ int tls1_generate_key_block(SSL *s, uint8_t *key_block, size_t key_block_len);
 int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
     const char *label, size_t llen, const unsigned char *p, size_t plen,
     int use_context);
-int tls1_alert_code(int code);
 int ssl_ok(SSL *s);
 
 int tls12_derive_finished(SSL *s);
diff --git a/lib/libssl/ssl_pkt.c b/lib/libssl/ssl_pkt.c
index ae47055079c..e959ccaf2fa 100644
--- a/lib/libssl/ssl_pkt.c
+++ b/lib/libssl/ssl_pkt.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssl_pkt.c,v 1.43 2021/05/16 14:10:43 jsing Exp $ */
+/* $OpenBSD: ssl_pkt.c,v 1.44 2021/06/13 15:34:41 jsing Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -1181,10 +1181,6 @@ ssl3_do_change_cipher_spec(SSL *s)
 int
 ssl3_send_alert(SSL *s, int level, int desc)
 {
-	/* Map tls/ssl alert value to correct one */
-	desc = tls1_alert_code(desc);
-	if (desc < 0)
-		return -1;
 	/* If a fatal one, remove from cache */
 	if ((level == 2) && (s->session != NULL))
 		SSL_CTX_remove_session(s->ctx, s->session);
diff --git a/lib/libssl/t1_enc.c b/lib/libssl/t1_enc.c
index 87d2f9e5904..15afb1bae8f 100644
--- a/lib/libssl/t1_enc.c
+++ b/lib/libssl/t1_enc.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: t1_enc.c,v 1.149 2021/06/13 15:29:19 jsing Exp $ */
+/* $OpenBSD: t1_enc.c,v 1.150 2021/06/13 15:34:41 jsing Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -494,68 +494,3 @@ tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
 
 	return (rv);
 }
-
-int
-tls1_alert_code(int code)
-{
-	switch (code) {
-	case SSL_AD_CLOSE_NOTIFY:
-		return (SSL3_AD_CLOSE_NOTIFY);
-	case SSL_AD_UNEXPECTED_MESSAGE:
-		return (SSL3_AD_UNEXPECTED_MESSAGE);
-	case SSL_AD_BAD_RECORD_MAC:
-		return (SSL3_AD_BAD_RECORD_MAC);
-	case SSL_AD_RECORD_OVERFLOW:
-		return (TLS1_AD_RECORD_OVERFLOW);
-	case SSL_AD_DECOMPRESSION_FAILURE:
-		return (SSL3_AD_DECOMPRESSION_FAILURE);
-	case SSL_AD_HANDSHAKE_FAILURE:
-		return (SSL3_AD_HANDSHAKE_FAILURE);
-	case SSL_AD_BAD_CERTIFICATE:
-		return (SSL3_AD_BAD_CERTIFICATE);
-	case SSL_AD_UNSUPPORTED_CERTIFICATE:
-		return (SSL3_AD_UNSUPPORTED_CERTIFICATE);
-	case SSL_AD_CERTIFICATE_REVOKED:
-		return (SSL3_AD_CERTIFICATE_REVOKED);
-	case SSL_AD_CERTIFICATE_EXPIRED:
-		return (SSL3_AD_CERTIFICATE_EXPIRED);
-	case SSL_AD_CERTIFICATE_UNKNOWN:
-		return (SSL3_AD_CERTIFICATE_UNKNOWN);
-	case SSL_AD_ILLEGAL_PARAMETER:
-		return (SSL3_AD_ILLEGAL_PARAMETER);
-	case SSL_AD_UNKNOWN_CA:
-		return (TLS1_AD_UNKNOWN_CA);
-	case SSL_AD_ACCESS_DENIED:
-		return (TLS1_AD_ACCESS_DENIED);
-	case SSL_AD_DECODE_ERROR:
-		return (TLS1_AD_DECODE_ERROR);
-	case SSL_AD_DECRYPT_ERROR:
-		return (TLS1_AD_DECRYPT_ERROR);
-	case SSL_AD_PROTOCOL_VERSION:
-		return (TLS1_AD_PROTOCOL_VERSION);
-	case SSL_AD_INSUFFICIENT_SECURITY:
-		return (TLS1_AD_INSUFFICIENT_SECURITY);
-	case SSL_AD_INTERNAL_ERROR:
-		return (TLS1_AD_INTERNAL_ERROR);
-	case SSL_AD_INAPPROPRIATE_FALLBACK:
-		return(TLS1_AD_INAPPROPRIATE_FALLBACK);
-	case SSL_AD_USER_CANCELLED:
-		return (TLS1_AD_USER_CANCELLED);
-	case SSL_AD_NO_RENEGOTIATION:
-		return (TLS1_AD_NO_RENEGOTIATION);
-	case SSL_AD_UNSUPPORTED_EXTENSION:
-		return (TLS1_AD_UNSUPPORTED_EXTENSION);
-	case SSL_AD_CERTIFICATE_UNOBTAINABLE:
-		return (TLS1_AD_CERTIFICATE_UNOBTAINABLE);
-	case SSL_AD_UNRECOGNIZED_NAME:
-		return (TLS1_AD_UNRECOGNIZED_NAME);
-	case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE:
-		return (TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE);
-	case SSL_AD_BAD_CERTIFICATE_HASH_VALUE:
-		return (TLS1_AD_BAD_CERTIFICATE_HASH_VALUE);
-	case SSL_AD_UNKNOWN_PSK_IDENTITY:
-		return (TLS1_AD_UNKNOWN_PSK_IDENTITY);
-	default:
-		return (-1);
-	}
-}