diff --git a/src/vde_cryptcab/cryptcab.c b/src/vde_cryptcab/cryptcab.c index c1f14fd..0c7b186 100644 --- a/src/vde_cryptcab/cryptcab.c +++ b/src/vde_cryptcab/cryptcab.c @@ -22,7 +22,7 @@ static void Usage(char *programname) exit(1); } -static EVP_CIPHER_CTX ctx; +static EVP_CIPHER_CTX *ctx; static int ctx_initialized = 0; static int encryption_disabled = 0; static int nfd; @@ -30,6 +30,10 @@ static unsigned long long mycounter=1; static struct vde_open_args open_args={.port=0,.group=NULL,.mode=0700}; static int verbose = 0; +#if OPENSSL_VERSION_NUMBER < 0x1010000 || defined LIBRESSL_VERSION_NUMBER +#define EVP_CIPHER_CTX_reset(x) EVP_CIPHER_CTX_cleanup(x) +#endif + void vc_printlog(int priority, const char *format, ...) { va_list arg; @@ -103,19 +107,21 @@ int data_encrypt(unsigned char *src, unsigned char *dst, int len, struct peer *p } if (!ctx_initialized) { - EVP_CIPHER_CTX_init (&ctx); + ctx = EVP_CIPHER_CTX_new (); + if (!ctx) + return -1; ctx_initialized = 1; } - EVP_EncryptInit (&ctx, EVP_bf_cbc (), p->key, p->iv); - if (EVP_EncryptUpdate (&ctx, dst, &olen, src, len) != 1) + EVP_EncryptInit (ctx, EVP_bf_cbc (), p->key, p->iv); + if (EVP_EncryptUpdate (ctx, dst, &olen, src, len) != 1) { fprintf (stderr,"error in encrypt update\n"); olen = -1; goto cleanup; } - if (EVP_EncryptFinal (&ctx, dst + olen, &tlen) != 1) + if (EVP_EncryptFinal (ctx, dst + olen, &tlen) != 1) { fprintf (stderr,"error in encrypt final\n"); olen = -1; @@ -124,7 +130,7 @@ int data_encrypt(unsigned char *src, unsigned char *dst, int len, struct peer *p olen += tlen; cleanup: - EVP_CIPHER_CTX_cleanup(&ctx); + EVP_CIPHER_CTX_reset(ctx); return olen; } @@ -138,19 +144,21 @@ int data_decrypt(unsigned char *src, unsigned char *dst, int len, struct peer *p } if (!ctx_initialized) { - EVP_CIPHER_CTX_init (&ctx); + ctx = EVP_CIPHER_CTX_new (); + if (!ctx) + return -1; ctx_initialized = 1; } - EVP_DecryptInit (&ctx, EVP_bf_cbc (), p->key, p->iv); - if (EVP_DecryptUpdate (&ctx, dst, &olen, src, len) != 1) + EVP_DecryptInit (ctx, EVP_bf_cbc (), p->key, p->iv); + if (EVP_DecryptUpdate (ctx, dst, &olen, src, len) != 1) { fprintf (stderr,"error in decrypt update\n"); olen = -1; goto cleanup; } - if (EVP_DecryptFinal (&ctx, dst + olen, &tlen) != 1) + if (EVP_DecryptFinal (ctx, dst + olen, &tlen) != 1) { fprintf (stderr,"error in decrypt final\n"); olen = -1; @@ -159,7 +167,7 @@ int data_decrypt(unsigned char *src, unsigned char *dst, int len, struct peer *p olen += tlen; cleanup: - EVP_CIPHER_CTX_cleanup(&ctx); + EVP_CIPHER_CTX_reset (ctx); return olen; }