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authorAlberto Gonzalez Iniesta <agi@inittab.org>2013-05-17 12:00:05 +0200
committerAlberto Gonzalez Iniesta <agi@inittab.org>2013-05-17 12:00:05 +0200
commitfcc893c0d8d245525cfb023b6e2a8aae086304cf (patch)
treeaf66f2927d75155db4c5a11ab738ac1f544571f7 /src/openvpn/crypto_polarssl.c
parent9e3cceecfca10ef806f193ec41e0e0a44706c328 (diff)
Imported Upstream version 2.3.1upstream/2.3.1
Diffstat (limited to 'src/openvpn/crypto_polarssl.c')
-rw-r--r--src/openvpn/crypto_polarssl.c55
1 files changed, 53 insertions, 2 deletions
diff --git a/src/openvpn/crypto_polarssl.c b/src/openvpn/crypto_polarssl.c
index 3978a3c..1f27d6c 100644
--- a/src/openvpn/crypto_polarssl.c
+++ b/src/openvpn/crypto_polarssl.c
@@ -94,6 +94,53 @@ crypto_init_dmalloc (void)
}
#endif /* DMALLOC */
+typedef struct { const char * openvpn_name; const char * polarssl_name; } cipher_name_pair;
+cipher_name_pair cipher_name_translation_table[] = {
+ { "BF-CBC", "BLOWFISH-CBC" },
+ { "BF-CFB", "BLOWFISH-CFB64" },
+ { "CAMELLIA-128-CFB", "CAMELLIA-128-CFB128" },
+ { "CAMELLIA-192-CFB", "CAMELLIA-192-CFB128" },
+ { "CAMELLIA-256-CFB", "CAMELLIA-256-CFB128" }
+};
+
+const cipher_name_pair *
+get_cipher_name_pair(const char *cipher_name) {
+ cipher_name_pair *pair;
+ size_t i = 0;
+
+ /* Search for a cipher name translation */
+ for (; i < sizeof (cipher_name_translation_table) / sizeof (*cipher_name_translation_table); i++)
+ {
+ pair = &cipher_name_translation_table[i];
+ if (0 == strcmp (cipher_name, pair->openvpn_name) ||
+ 0 == strcmp (cipher_name, pair->polarssl_name))
+ return pair;
+ }
+
+ /* Nothing found, return null */
+ return NULL;
+}
+
+const char *
+translate_cipher_name_from_openvpn (const char *cipher_name) {
+ const cipher_name_pair *pair = get_cipher_name_pair(cipher_name);
+
+ if (NULL == pair)
+ return cipher_name;
+
+ return pair->polarssl_name;
+}
+
+const char *
+translate_cipher_name_to_openvpn (const char *cipher_name) {
+ const cipher_name_pair *pair = get_cipher_name_pair(cipher_name);
+
+ if (NULL == pair)
+ return cipher_name;
+
+ return pair->openvpn_name;
+}
+
void
show_available_ciphers ()
{
@@ -114,7 +161,7 @@ show_available_ciphers ()
if (info && info->mode == POLARSSL_MODE_CBC)
printf ("%s %d bit default key\n",
- info->name, info->key_length);
+ cipher_kt_name(info), cipher_kt_key_size(info) * 8);
ciphers++;
}
@@ -331,7 +378,8 @@ cipher_kt_name (const cipher_info_t *cipher_kt)
{
if (NULL == cipher_kt)
return "[null-cipher]";
- return cipher_kt->name;
+
+ return translate_cipher_name_to_openvpn(cipher_kt->name);
}
int
@@ -339,6 +387,9 @@ cipher_kt_key_size (const cipher_info_t *cipher_kt)
{
if (NULL == cipher_kt)
return 0;
+ if (POLARSSL_CIPHER_ID_BLOWFISH == cipher_kt->base->cipher)
+ return 128/8; /* Override PolarSSL 32 bit default key size with sane 128 bit default */
+
return cipher_kt->key_length/8;
}