bsd-user: Implement get/set[resuid/resgid/sid] and issetugid.

[mirror_qemu.git] / crypto / cipher.c

diff --git a/crypto/cipher.c b/crypto/cipher.c
index b3af57961b99aab70a02d522e29a99521e2191c4..74b09a5b261bae00c01afa788dbca99017f4110e 100644 (file)
--- a/crypto/cipher.c
+++ b/crypto/cipher.c
@@ -6,7 +6,7 @@
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -19,16 +19,17 @@
  */
 
 #include "qemu/osdep.h"
+#include "qemu/host-utils.h"
 #include "qapi/error.h"
 #include "crypto/cipher.h"
 #include "cipherpriv.h"
 
 
-static size_t alg_key_len[QCRYPTO_CIPHER_ALG__MAX] = {
+static const size_t alg_key_len[QCRYPTO_CIPHER_ALG__MAX] = {
     [QCRYPTO_CIPHER_ALG_AES_128] = 16,
     [QCRYPTO_CIPHER_ALG_AES_192] = 24,
     [QCRYPTO_CIPHER_ALG_AES_256] = 32,
-    [QCRYPTO_CIPHER_ALG_DES_RFB] = 8,
+    [QCRYPTO_CIPHER_ALG_DES] = 8,
     [QCRYPTO_CIPHER_ALG_3DES] = 24,
     [QCRYPTO_CIPHER_ALG_CAST5_128] = 16,
     [QCRYPTO_CIPHER_ALG_SERPENT_128] = 16,
@@ -39,11 +40,11 @@ static size_t alg_key_len[QCRYPTO_CIPHER_ALG__MAX] = {
     [QCRYPTO_CIPHER_ALG_TWOFISH_256] = 32,
 };
 
-static size_t alg_block_len[QCRYPTO_CIPHER_ALG__MAX] = {
+static const size_t alg_block_len[QCRYPTO_CIPHER_ALG__MAX] = {
     [QCRYPTO_CIPHER_ALG_AES_128] = 16,
     [QCRYPTO_CIPHER_ALG_AES_192] = 16,
     [QCRYPTO_CIPHER_ALG_AES_256] = 16,
-    [QCRYPTO_CIPHER_ALG_DES_RFB] = 8,
+    [QCRYPTO_CIPHER_ALG_DES] = 8,
     [QCRYPTO_CIPHER_ALG_3DES] = 8,
     [QCRYPTO_CIPHER_ALG_CAST5_128] = 8,
     [QCRYPTO_CIPHER_ALG_SERPENT_128] = 16,
@@ -54,7 +55,7 @@ static size_t alg_block_len[QCRYPTO_CIPHER_ALG__MAX] = {
     [QCRYPTO_CIPHER_ALG_TWOFISH_256] = 16,
 };
 
-static bool mode_need_iv[QCRYPTO_CIPHER_MODE__MAX] = {
+static const bool mode_need_iv[QCRYPTO_CIPHER_MODE__MAX] = {
     [QCRYPTO_CIPHER_MODE_ECB] = false,
     [QCRYPTO_CIPHER_MODE_CBC] = true,
     [QCRYPTO_CIPHER_MODE_XTS] = true,
@@ -106,9 +107,9 @@ qcrypto_cipher_validate_key_length(QCryptoCipherAlgorithm alg,
     }
 
     if (mode == QCRYPTO_CIPHER_MODE_XTS) {
-        if (alg == QCRYPTO_CIPHER_ALG_DES_RFB
-                || alg == QCRYPTO_CIPHER_ALG_3DES) {
-            error_setg(errp, "XTS mode not compatible with DES-RFB/3DES");
+        if (alg == QCRYPTO_CIPHER_ALG_DES ||
+            alg == QCRYPTO_CIPHER_ALG_3DES) {
+            error_setg(errp, "XTS mode not compatible with DES/3DES");
             return false;
         }
         if (nkey % 2) {
@@ -131,30 +132,14 @@ qcrypto_cipher_validate_key_length(QCryptoCipherAlgorithm alg,
     return true;
 }
 
-#if defined(CONFIG_GCRYPT) || defined(CONFIG_NETTLE)
-static uint8_t *
-qcrypto_cipher_munge_des_rfb_key(const uint8_t *key,
-                                 size_t nkey)
-{
-    uint8_t *ret = g_new0(uint8_t, nkey);
-    size_t i;
-    for (i = 0; i < nkey; i++) {
-        uint8_t r = key[i];
-        r = (r & 0xf0) >> 4 | (r & 0x0f) << 4;
-        r = (r & 0xcc) >> 2 | (r & 0x33) << 2;
-        r = (r & 0xaa) >> 1 | (r & 0x55) << 1;
-        ret[i] = r;
-    }
-    return ret;
-}
-#endif /* CONFIG_GCRYPT || CONFIG_NETTLE */
-
 #ifdef CONFIG_GCRYPT
-#include "cipher-gcrypt.c"
+#include "cipher-gcrypt.c.inc"
 #elif defined CONFIG_NETTLE
-#include "cipher-nettle.c"
+#include "cipher-nettle.c.inc"
+#elif defined CONFIG_GNUTLS_CRYPTO
+#include "cipher-gnutls.c.inc"
 #else
-#include "cipher-builtin.c"
+#include "cipher-builtin.c.inc"
 #endif
 
 QCryptoCipher *qcrypto_cipher_new(QCryptoCipherAlgorithm alg,
@@ -162,31 +147,21 @@ QCryptoCipher *qcrypto_cipher_new(QCryptoCipherAlgorithm alg,
                                   const uint8_t *key, size_t nkey,
                                   Error **errp)
 {
-    QCryptoCipher *cipher;
-    void *ctx = NULL;
-    QCryptoCipherDriver *drv = NULL;
+    QCryptoCipher *cipher = NULL;
 
 #ifdef CONFIG_AF_ALG
-    ctx = qcrypto_afalg_cipher_ctx_new(alg, mode, key, nkey, NULL);
-    if (ctx) {
-        drv = &qcrypto_cipher_afalg_driver;
-    }
+    cipher = qcrypto_afalg_cipher_ctx_new(alg, mode, key, nkey, NULL);
 #endif
 
-    if (!ctx) {
-        ctx = qcrypto_cipher_ctx_new(alg, mode, key, nkey, errp);
-        if (!ctx) {
+    if (!cipher) {
+        cipher = qcrypto_cipher_ctx_new(alg, mode, key, nkey, errp);
+        if (!cipher) {
             return NULL;
         }
-
-        drv = &qcrypto_cipher_lib_driver;
     }
 
-    cipher = g_new0(QCryptoCipher, 1);
     cipher->alg = alg;
     cipher->mode = mode;
-    cipher->opaque = ctx;
-    cipher->driver = (void *)drv;
 
     return cipher;
 }
@@ -198,7 +173,7 @@ int qcrypto_cipher_encrypt(QCryptoCipher *cipher,
                            size_t len,
                            Error **errp)
 {
-    QCryptoCipherDriver *drv = cipher->driver;
+    const QCryptoCipherDriver *drv = cipher->driver;
     return drv->cipher_encrypt(cipher, in, out, len, errp);
 }
 
@@ -209,7 +184,7 @@ int qcrypto_cipher_decrypt(QCryptoCipher *cipher,
                            size_t len,
                            Error **errp)
 {
-    QCryptoCipherDriver *drv = cipher->driver;
+    const QCryptoCipherDriver *drv = cipher->driver;
     return drv->cipher_decrypt(cipher, in, out, len, errp);
 }
 
@@ -218,17 +193,14 @@ int qcrypto_cipher_setiv(QCryptoCipher *cipher,
                          const uint8_t *iv, size_t niv,
                          Error **errp)
 {
-    QCryptoCipherDriver *drv = cipher->driver;
+    const QCryptoCipherDriver *drv = cipher->driver;
     return drv->cipher_setiv(cipher, iv, niv, errp);
 }
 
 
 void qcrypto_cipher_free(QCryptoCipher *cipher)
 {
-    QCryptoCipherDriver *drv;
     if (cipher) {
-        drv = cipher->driver;
-        drv->cipher_free(cipher);
-        g_free(cipher);
+        cipher->driver->cipher_free(cipher);
     }
 }