Configure: make no-chacha and no-poly1305 work.

Reviewed-by: Richard Levitte <levitte@openssl.org>

Configure

@@ -812,6 +812,7 @@ my @disablables = (
     "camellia",
     "capieng",
     "cast",
+    "chacha",
     "cmac",
     "cms",
     "comp",
@@ -845,6 +846,7 @@ my @disablables = (
     "nextprotoneg",
     "ocb",
     "ocsp",
+    "poly1305",
     "posix-io",
     "psk",
     "rc2",

crypto/include/internal/chacha.h

@@ -57,6 +57,10 @@
 extern "C" {
 #endif
 
+# ifdef OPENSSL_NO_CHACHA
+#  error CHACHA is disabled.
+# endif
+
 /*
  * ChaCha20_ctr32 encrypts |len| bytes from |inp| with the given key and
  * nonce and writes the result to |out|, which may be equal to |inp|.

crypto/include/internal/poly1305.h

@@ -49,6 +49,10 @@
  */
 #include <stddef.h>
 
+#ifdef OPENSSL_NO_POLY1305
+# error POLY1305 is disabled.
+#endif
+
 #define POLY1305_BLOCK_SIZE 16
 
 typedef struct poly1305_context POLY1305;

ssl/ssl_algs.c

@@ -102,7 +102,7 @@ int SSL_library_init(void)
     EVP_add_cipher(EVP_camellia_128_cbc());
     EVP_add_cipher(EVP_camellia_256_cbc());
 #endif
-#if !defined(OPENSSL_NO_CHACHA20) && !defined(OPENSSL_NO_POLY1305)
+#if !defined(OPENSSL_NO_CHACHA) && !defined(OPENSSL_NO_POLY1305)
     EVP_add_cipher(EVP_chacha20_poly1305());
 #endif
 

util/mkdef.pl

@@ -69,7 +69,7 @@ my @known_algorithms = ( "RC2", "RC4", "RC5", "IDEA", "DES", "BF",
 			 "SHA256", "SHA512", "RMD160",
 			 "MDC2", "WHIRLPOOL", "RSA", "DSA", "DH", "EC", "EC2M",
 			 "HMAC", "AES", "CAMELLIA", "SEED", "GOST",
-                         "SCRYPT",
+                         "SCRYPT", "CHACHA", "POLY1305",
 			 # EC_NISTP_64_GCC_128
 			 "EC_NISTP_64_GCC_128",
 			 # Envelope "algorithms"
@@ -128,6 +128,7 @@ my $no_cast; my $no_whirlpool; my $no_camellia; my $no_seed;
 my $no_md2; my $no_md4; my $no_md5; my $no_sha; my $no_ripemd; my $no_mdc2;
 my $no_rsa; my $no_dsa; my $no_dh; my $no_aes; my $no_scrypt;
 my $no_ec; my $no_engine; my $no_hw;
+my $no_chacha; my $no_poly1305;
 my $no_fp_api; my $no_static_engine=1; my $no_gmp; my $no_deprecated;
 my $no_sct; my $no_rfc3779; my $no_psk; my $no_cms; my $no_capieng;
 my $no_jpake; my $no_srp; my $no_ec2m; my $no_nistp_gcc; 
@@ -205,6 +206,8 @@ foreach (@ARGV, split(/ /, $options))
 	elsif (/^no-camellia$/)	{ $no_camellia=1; }
 	elsif (/^no-seed$/)     { $no_seed=1; }
 	elsif (/^no-scrypt$/)   { $no_scrypt=1; }
+	elsif (/^no-chacha$/)   { $no_chacha=1; }
+	elsif (/^no-poly1305$/) { $no_poly1305=1; }
 	elsif (/^no-evp$/)	{ $no_evp=1; }
 	elsif (/^no-lhash$/)	{ $no_lhash=1; }
 	elsif (/^no-stack$/)	{ $no_stack=1; }
@@ -267,6 +270,8 @@ $ssl.=" include/openssl/srtp.h";
 
 my $crypto ="include/openssl/crypto.h";
 $crypto.=" crypto/include/internal/cryptlib.h";
+$crypto.=" crypto/include/internal/chacha.h"; # unless $no_chacha;
+$crypto.=" crypto/include/internal/poly1305.h"; # unless $no_poly1305;
 $crypto.=" include/internal/o_dir.h";
 $crypto.=" include/internal/o_str.h";
 $crypto.=" include/openssl/des.h" ; # unless $no_des;
@@ -1188,6 +1193,8 @@ sub is_valid
 			if ($keyword eq "CAMELLIA" && $no_camellia) { return 0; }
 			if ($keyword eq "SEED" && $no_seed) { return 0; }
 			if ($keyword eq "SCRYPT" && $no_scrypt) { return 0; }
+			if ($keyword eq "CHACHA" && $no_chacha) { return 0; }
+			if ($keyword eq "POLY1305" && $no_poly1305) { return 0; }
 			if ($keyword eq "EVP" && $no_evp) { return 0; }
 			if ($keyword eq "LHASH" && $no_lhash) { return 0; }
 			if ($keyword eq "STACK" && $no_stack) { return 0; }