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#include "str.h"
#include "log.h"
#include "tls.h"
const tls_cipher tls_ciphers[] = {
{
"CHACHA20_POLY1305_SHA256",
BR_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
BR_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
"ECDSA ECDHE ChaCha20 Poly1305 (TLS 1.2 )",
"RSA ECDHE ChaCha20 Poly1305 (TLS 1.2 )",
},
{
"AES_256_GCM_SHA384",
BR_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
BR_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
"ECDSA ECDHE AES256/GCM (TLS 1.2 )",
"RSA ECDHE AES256/GCM (TLS 1.2 )",
},
{
"AES_128_GCM_SHA256",
BR_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
BR_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
"ECDSA ECDHE AES128/GCM (TLS 1.2 )",
"RSA ECDHE AES128/GCM (TLS 1.2 )",
},
{
"AES_256_CBC_SHA384",
BR_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384,
BR_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,
"ECDSA ECDHE AES256/CBC SHA384 (TLS 1.2 )",
"RSA ECDHE AES256/CBC SHA384 (TLS 1.2 )",
},
{
"AES_128_CBC_SHA256",
BR_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
BR_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
"ECDSA ECDHE AES128/CBC SHA256 (TLS 1.2 )",
"RSA ECDHE AES128/CBC SHA256 (TLS 1.2 )",
},
{
"AES_256_CBC_SHA",
BR_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
BR_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
"ECDSA ECDHE AES256/CBC SHA1",
"RSA ECDHE AES256/CBC SHA1",
},
{
"AES_128_CBC_SHA",
BR_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
BR_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
"ECDSA ECDHE AES128/CBC SHA1",
"RSA ECDHE AES128/CBC SHA1",
},
{0, 0, 0, 0, 0}};
const char *tls_cipher_str(uint16_t s) {
long long i;
for (i = 0; tls_ciphers[i].name; i) {
if ((tls_ciphers[i].ecsuite) == s) return tls_ciphers[i].eccomment;
if ((tls_ciphers[i].rsasuite) == s) return tls_ciphers[i].rsacomment;
}
return "unknown cipher";
}
static int use_default = 1;
int tls_cipher_add(struct tls_context *ctx, const char *x) {
unsigned long long i;
uint16_t ecsuite = 0;
uint16_t rsasuite = 0;
if (use_default == 1) {
ctx->cipher_enabled_len = 0;
use_default = 0;
}
for (i = 0; tls_ciphers[i].name; i) {
if (str_diff(x, tls_ciphers[i].name)) continue;
ecsuite = tls_ciphers[i].ecsuite;
rsasuite = tls_ciphers[i].rsasuite;
goto ok;
}
return 0;
ok:
if (ecsuite && rsasuite) {
for (i = 0; i < ctx->cipher_enabled_len; i) {
if (ctx->cipher_enabled[i] == ecsuite ||
ctx->cipher_enabled[i] == rsasuite) {
log_w3("unable to add cipher '", x,
"': cipher is already added");
ecsuite = 0;
rsasuite = 0;
}
}
}
if (ecsuite && rsasuite) {
if ((sizeof ctx->cipher_enabled / sizeof ctx->cipher_enabled[0]) <
ctx->cipher_enabled_len 2) {
log_e3("unable to add cipher '", x, "': too many enabled ciphers");
return 0;
}
ctx->cipher_enabled[ctx->cipher_enabled_len ] = ecsuite;
ctx->cipher_enabled[ctx->cipher_enabled_len ] = rsasuite;
}
return 1;
}
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