X-Git-Url: https://www.tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fcipher.c;h=61179078cbe88d605e1882d141c2c5eb6c1fdc4c;hb=f42e57f663a2663c830c4fb4c01927c2d3c89c09;hp=7e7b9f9275c38ce87097772e8aa70f4edfa9f6a8;hpb=19413a8048fd851866c551ab8035f008f0c7e806;p=tinc

diff --git a/src/cipher.c b/src/cipher.c
index 7e7b9f92..61179078 100644
--- a/src/cipher.c
+++ b/src/cipher.c
@@ -156,6 +156,23 @@ void cipher_close(cipher_t *cipher) {
 	}
 }
 
+size_t cipher_keylength(const cipher_t *cipher) {
+	return cipher->keylen + cipher->blklen;
+}
+
+void cipher_get_key(const cipher_t *cipher, void *key) {
+	memcpy(key, cipher->key, cipher->keylen + cipher->blklen);
+}
+
+bool cipher_set_key(cipher_t *cipher, void *key) {
+	memcpy(cipher->key, key, cipher->keylen + cipher->blklen);
+
+	gcry_cipher_setkey(cipher->handle, cipher->key, cipher->keylen);
+	gcry_cipher_setiv(cipher->handle, cipher->key + cipher->keylen, cipher->blklen);
+
+	return true;
+}
+
 bool cipher_regenerate_key(cipher_t *cipher) {
 	gcry_create_nonce(cipher->key, cipher->keylen + cipher->blklen);
 
@@ -227,7 +244,10 @@ void cipher_reset(cipher_t *cipher) {
 	gcry_cipher_setiv(cipher->handle, cipher->key + cipher->keylen, cipher->blklen);
 }
 
-int cipher_get_nid(cipher_t *cipher) {
+int cipher_get_nid(const cipher_t *cipher) {
 	return cipher->nid;
 }
 
+bool cipher_active(const cipher_t *cipher) {
+	return cipher->nid != 0;
+}