diff options
| -rw-r--r-- | crypto/afalgpriv.h | 3 | ||||
| -rw-r--r-- | crypto/cipher-afalg.c | 20 | ||||
| -rw-r--r-- | crypto/cipher-builtin.c.inc | 68 | ||||
| -rw-r--r-- | crypto/cipher-gcrypt.c.inc | 23 | ||||
| -rw-r--r-- | crypto/cipher-nettle.c.inc | 24 | ||||
| -rw-r--r-- | crypto/cipher.c | 20 | ||||
| -rw-r--r-- | crypto/cipherpriv.h | 2 | ||||
| -rw-r--r-- | include/crypto/cipher.h | 1 |
8 files changed, 84 insertions, 77 deletions
diff --git a/crypto/afalgpriv.h b/crypto/afalgpriv.h index f6550b5c51..5a2393f1b7 100644 --- a/crypto/afalgpriv.h +++ b/crypto/afalgpriv.h @@ -15,6 +15,7 @@ #define QCRYPTO_AFALGPRIV_H #include <linux/if_alg.h> +#include "crypto/cipher.h" #define SALG_TYPE_LEN_MAX 14 #define SALG_NAME_LEN_MAX 64 @@ -32,6 +33,8 @@ typedef struct QCryptoAFAlg QCryptoAFAlg; struct QCryptoAFAlg { + QCryptoCipher base; + int tfmfd; int opfd; struct msghdr *msg; diff --git a/crypto/cipher-afalg.c b/crypto/cipher-afalg.c index 5c7c44761b..86e5249bd6 100644 --- a/crypto/cipher-afalg.c +++ b/crypto/cipher-afalg.c @@ -58,7 +58,7 @@ qcrypto_afalg_cipher_format_name(QCryptoCipherAlgorithm alg, return name; } -QCryptoAFAlg * +QCryptoCipher * qcrypto_afalg_cipher_ctx_new(QCryptoCipherAlgorithm alg, QCryptoCipherMode mode, const uint8_t *key, @@ -109,7 +109,7 @@ qcrypto_afalg_cipher_ctx_new(QCryptoCipherAlgorithm alg, } afalg->cmsg = CMSG_FIRSTHDR(afalg->msg); - return afalg; + return &afalg->base; } static int @@ -117,9 +117,9 @@ qcrypto_afalg_cipher_setiv(QCryptoCipher *cipher, const uint8_t *iv, size_t niv, Error **errp) { + QCryptoAFAlg *afalg = container_of(cipher, QCryptoAFAlg, base); struct af_alg_iv *alg_iv; size_t expect_niv; - QCryptoAFAlg *afalg = cipher->opaque; expect_niv = qcrypto_cipher_get_iv_len(cipher->alg, cipher->mode); if (niv != expect_niv) { @@ -200,8 +200,9 @@ qcrypto_afalg_cipher_encrypt(QCryptoCipher *cipher, const void *in, void *out, size_t len, Error **errp) { - return qcrypto_afalg_cipher_op(cipher->opaque, in, out, - len, true, errp); + QCryptoAFAlg *afalg = container_of(cipher, QCryptoAFAlg, base); + + return qcrypto_afalg_cipher_op(afalg, in, out, len, true, errp); } static int @@ -209,13 +210,16 @@ qcrypto_afalg_cipher_decrypt(QCryptoCipher *cipher, const void *in, void *out, size_t len, Error **errp) { - return qcrypto_afalg_cipher_op(cipher->opaque, in, out, - len, false, errp); + QCryptoAFAlg *afalg = container_of(cipher, QCryptoAFAlg, base); + + return qcrypto_afalg_cipher_op(afalg, in, out, len, false, errp); } static void qcrypto_afalg_comm_ctx_free(QCryptoCipher *cipher) { - qcrypto_afalg_comm_free(cipher->opaque); + QCryptoAFAlg *afalg = container_of(cipher, QCryptoAFAlg, base); + + qcrypto_afalg_comm_free(afalg); } const struct QCryptoCipherDriver qcrypto_cipher_afalg_driver = { diff --git a/crypto/cipher-builtin.c.inc b/crypto/cipher-builtin.c.inc index 156f32f1c7..6a03e23040 100644 --- a/crypto/cipher-builtin.c.inc +++ b/crypto/cipher-builtin.c.inc @@ -41,6 +41,8 @@ struct QCryptoCipherBuiltinDESRFB { typedef struct QCryptoCipherBuiltin QCryptoCipherBuiltin; struct QCryptoCipherBuiltin { + QCryptoCipher base; + union { QCryptoCipherBuiltinAES aes; QCryptoCipherBuiltinDESRFB desrfb; @@ -65,10 +67,7 @@ struct QCryptoCipherBuiltin { static void qcrypto_cipher_free_aes(QCryptoCipher *cipher) { - QCryptoCipherBuiltin *ctxt = cipher->opaque; - - g_free(ctxt); - cipher->opaque = NULL; + g_free(cipher); } @@ -152,7 +151,8 @@ static int qcrypto_cipher_encrypt_aes(QCryptoCipher *cipher, size_t len, Error **errp) { - QCryptoCipherBuiltin *ctxt = cipher->opaque; + QCryptoCipherBuiltin *ctxt + = container_of(cipher, QCryptoCipherBuiltin, base); switch (cipher->mode) { case QCRYPTO_CIPHER_MODE_ECB: @@ -186,7 +186,8 @@ static int qcrypto_cipher_decrypt_aes(QCryptoCipher *cipher, size_t len, Error **errp) { - QCryptoCipherBuiltin *ctxt = cipher->opaque; + QCryptoCipherBuiltin *ctxt + = container_of(cipher, QCryptoCipherBuiltin, base); switch (cipher->mode) { case QCRYPTO_CIPHER_MODE_ECB: @@ -217,7 +218,9 @@ static int qcrypto_cipher_setiv_aes(QCryptoCipher *cipher, const uint8_t *iv, size_t niv, Error **errp) { - QCryptoCipherBuiltin *ctxt = cipher->opaque; + QCryptoCipherBuiltin *ctxt + = container_of(cipher, QCryptoCipherBuiltin, base); + if (niv != AES_BLOCK_SIZE) { error_setg(errp, "IV must be %d bytes not %zu", AES_BLOCK_SIZE, niv); @@ -232,7 +235,7 @@ static int qcrypto_cipher_setiv_aes(QCryptoCipher *cipher, -static QCryptoCipherBuiltin * +static QCryptoCipher * qcrypto_cipher_init_aes(QCryptoCipherMode mode, const uint8_t *key, size_t nkey, Error **errp) @@ -289,7 +292,7 @@ qcrypto_cipher_init_aes(QCryptoCipherMode mode, ctxt->encrypt = qcrypto_cipher_encrypt_aes; ctxt->decrypt = qcrypto_cipher_decrypt_aes; - return ctxt; + return &ctxt->base; error: g_free(ctxt); @@ -299,11 +302,11 @@ qcrypto_cipher_init_aes(QCryptoCipherMode mode, static void qcrypto_cipher_free_des_rfb(QCryptoCipher *cipher) { - QCryptoCipherBuiltin *ctxt = cipher->opaque; + QCryptoCipherBuiltin *ctxt + = container_of(cipher, QCryptoCipherBuiltin, base); g_free(ctxt->state.desrfb.key); g_free(ctxt); - cipher->opaque = NULL; } @@ -313,7 +316,8 @@ static int qcrypto_cipher_encrypt_des_rfb(QCryptoCipher *cipher, size_t len, Error **errp) { - QCryptoCipherBuiltin *ctxt = cipher->opaque; + QCryptoCipherBuiltin *ctxt + = container_of(cipher, QCryptoCipherBuiltin, base); size_t i; if (len % 8) { @@ -338,7 +342,8 @@ static int qcrypto_cipher_decrypt_des_rfb(QCryptoCipher *cipher, size_t len, Error **errp) { - QCryptoCipherBuiltin *ctxt = cipher->opaque; + QCryptoCipherBuiltin *ctxt + = container_of(cipher, QCryptoCipherBuiltin, base); size_t i; if (len % 8) { @@ -366,7 +371,7 @@ static int qcrypto_cipher_setiv_des_rfb(QCryptoCipher *cipher, } -static QCryptoCipherBuiltin * +static QCryptoCipher * qcrypto_cipher_init_des_rfb(QCryptoCipherMode mode, const uint8_t *key, size_t nkey, Error **errp) @@ -391,7 +396,7 @@ qcrypto_cipher_init_des_rfb(QCryptoCipherMode mode, ctxt->encrypt = qcrypto_cipher_encrypt_des_rfb; ctxt->decrypt = qcrypto_cipher_decrypt_des_rfb; - return ctxt; + return &ctxt->base; } @@ -421,14 +426,12 @@ bool qcrypto_cipher_supports(QCryptoCipherAlgorithm alg, } -static QCryptoCipherBuiltin *qcrypto_cipher_ctx_new(QCryptoCipherAlgorithm alg, - QCryptoCipherMode mode, - const uint8_t *key, - size_t nkey, - Error **errp) +static QCryptoCipher *qcrypto_cipher_ctx_new(QCryptoCipherAlgorithm alg, + QCryptoCipherMode mode, + const uint8_t *key, + size_t nkey, + Error **errp) { - QCryptoCipherBuiltin *ctxt; - switch (mode) { case QCRYPTO_CIPHER_MODE_ECB: case QCRYPTO_CIPHER_MODE_CBC: @@ -446,29 +449,25 @@ static QCryptoCipherBuiltin *qcrypto_cipher_ctx_new(QCryptoCipherAlgorithm alg, switch (alg) { case QCRYPTO_CIPHER_ALG_DES_RFB: - ctxt = qcrypto_cipher_init_des_rfb(mode, key, nkey, errp); - break; + return qcrypto_cipher_init_des_rfb(mode, key, nkey, errp); case QCRYPTO_CIPHER_ALG_AES_128: case QCRYPTO_CIPHER_ALG_AES_192: case QCRYPTO_CIPHER_ALG_AES_256: - ctxt = qcrypto_cipher_init_aes(mode, key, nkey, errp); - break; + return qcrypto_cipher_init_aes(mode, key, nkey, errp); default: error_setg(errp, "Unsupported cipher algorithm %s", QCryptoCipherAlgorithm_str(alg)); return NULL; } - - return ctxt; } static void qcrypto_builtin_cipher_ctx_free(QCryptoCipher *cipher) { - QCryptoCipherBuiltin *ctxt; + QCryptoCipherBuiltin *ctxt + = container_of(cipher, QCryptoCipherBuiltin, base); - ctxt = cipher->opaque; ctxt->free(cipher); } @@ -480,7 +479,8 @@ qcrypto_builtin_cipher_encrypt(QCryptoCipher *cipher, size_t len, Error **errp) { - QCryptoCipherBuiltin *ctxt = cipher->opaque; + QCryptoCipherBuiltin *ctxt + = container_of(cipher, QCryptoCipherBuiltin, base); if (len & (ctxt->blocksize - 1)) { error_setg(errp, "Length %zu must be a multiple of block size %zu", @@ -499,7 +499,8 @@ qcrypto_builtin_cipher_decrypt(QCryptoCipher *cipher, size_t len, Error **errp) { - QCryptoCipherBuiltin *ctxt = cipher->opaque; + QCryptoCipherBuiltin *ctxt + = container_of(cipher, QCryptoCipherBuiltin, base); if (len & (ctxt->blocksize - 1)) { error_setg(errp, "Length %zu must be a multiple of block size %zu", @@ -516,7 +517,8 @@ qcrypto_builtin_cipher_setiv(QCryptoCipher *cipher, const uint8_t *iv, size_t niv, Error **errp) { - QCryptoCipherBuiltin *ctxt = cipher->opaque; + QCryptoCipherBuiltin *ctxt + = container_of(cipher, QCryptoCipherBuiltin, base); return ctxt->setiv(cipher, iv, niv, errp); } diff --git a/crypto/cipher-gcrypt.c.inc b/crypto/cipher-gcrypt.c.inc index 18850fadb9..3b3c85e265 100644 --- a/crypto/cipher-gcrypt.c.inc +++ b/crypto/cipher-gcrypt.c.inc @@ -58,6 +58,7 @@ bool qcrypto_cipher_supports(QCryptoCipherAlgorithm alg, typedef struct QCryptoCipherGcrypt QCryptoCipherGcrypt; struct QCryptoCipherGcrypt { + QCryptoCipher base; gcry_cipher_hd_t handle; size_t blocksize; #ifdef CONFIG_QEMU_PRIVATE_XTS @@ -86,11 +87,11 @@ qcrypto_gcrypt_cipher_free_ctx(QCryptoCipherGcrypt *ctx, } -static QCryptoCipherGcrypt *qcrypto_cipher_ctx_new(QCryptoCipherAlgorithm alg, - QCryptoCipherMode mode, - const uint8_t *key, - size_t nkey, - Error **errp) +static QCryptoCipher *qcrypto_cipher_ctx_new(QCryptoCipherAlgorithm alg, + QCryptoCipherMode mode, + const uint8_t *key, + size_t nkey, + Error **errp) { QCryptoCipherGcrypt *ctx; gcry_error_t err; @@ -257,7 +258,7 @@ static QCryptoCipherGcrypt *qcrypto_cipher_ctx_new(QCryptoCipherAlgorithm alg, } #endif - return ctx; + return &ctx->base; error: qcrypto_gcrypt_cipher_free_ctx(ctx, mode); @@ -268,7 +269,9 @@ static QCryptoCipherGcrypt *qcrypto_cipher_ctx_new(QCryptoCipherAlgorithm alg, static void qcrypto_gcrypt_cipher_ctx_free(QCryptoCipher *cipher) { - qcrypto_gcrypt_cipher_free_ctx(cipher->opaque, cipher->mode); + QCryptoCipherGcrypt *ctx = container_of(cipher, QCryptoCipherGcrypt, base); + + qcrypto_gcrypt_cipher_free_ctx(ctx, cipher->mode); } @@ -301,7 +304,7 @@ qcrypto_gcrypt_cipher_encrypt(QCryptoCipher *cipher, size_t len, Error **errp) { - QCryptoCipherGcrypt *ctx = cipher->opaque; + QCryptoCipherGcrypt *ctx = container_of(cipher, QCryptoCipherGcrypt, base); gcry_error_t err; if (len & (ctx->blocksize - 1)) { @@ -340,7 +343,7 @@ qcrypto_gcrypt_cipher_decrypt(QCryptoCipher *cipher, size_t len, Error **errp) { - QCryptoCipherGcrypt *ctx = cipher->opaque; + QCryptoCipherGcrypt *ctx = container_of(cipher, QCryptoCipherGcrypt, base); gcry_error_t err; if (len & (ctx->blocksize - 1)) { @@ -376,7 +379,7 @@ qcrypto_gcrypt_cipher_setiv(QCryptoCipher *cipher, const uint8_t *iv, size_t niv, Error **errp) { - QCryptoCipherGcrypt *ctx = cipher->opaque; + QCryptoCipherGcrypt *ctx = container_of(cipher, QCryptoCipherGcrypt, base); gcry_error_t err; if (niv != ctx->blocksize) { diff --git a/crypto/cipher-nettle.c.inc b/crypto/cipher-nettle.c.inc index 6ecce5e8ea..d8371d1f37 100644 --- a/crypto/cipher-nettle.c.inc +++ b/crypto/cipher-nettle.c.inc @@ -294,6 +294,8 @@ static void twofish_decrypt_wrapper(const void *ctx, size_t length, typedef struct QCryptoCipherNettle QCryptoCipherNettle; struct QCryptoCipherNettle { + QCryptoCipher base; + /* Primary cipher context for all modes */ void *ctx; /* Second cipher context for XTS mode only */ @@ -355,11 +357,11 @@ qcrypto_nettle_cipher_free_ctx(QCryptoCipherNettle *ctx) } -static QCryptoCipherNettle *qcrypto_cipher_ctx_new(QCryptoCipherAlgorithm alg, - QCryptoCipherMode mode, - const uint8_t *key, - size_t nkey, - Error **errp) +static QCryptoCipher *qcrypto_cipher_ctx_new(QCryptoCipherAlgorithm alg, + QCryptoCipherMode mode, + const uint8_t *key, + size_t nkey, + Error **errp) { QCryptoCipherNettle *ctx; uint8_t *rfbkey; @@ -585,7 +587,7 @@ static QCryptoCipherNettle *qcrypto_cipher_ctx_new(QCryptoCipherAlgorithm alg, ctx->iv = g_new0(uint8_t, ctx->blocksize); - return ctx; + return &ctx->base; error: qcrypto_nettle_cipher_free_ctx(ctx); @@ -596,9 +598,8 @@ static QCryptoCipherNettle *qcrypto_cipher_ctx_new(QCryptoCipherAlgorithm alg, static void qcrypto_nettle_cipher_ctx_free(QCryptoCipher *cipher) { - QCryptoCipherNettle *ctx; + QCryptoCipherNettle *ctx = container_of(cipher, QCryptoCipherNettle, base); - ctx = cipher->opaque; qcrypto_nettle_cipher_free_ctx(ctx); } @@ -610,7 +611,7 @@ qcrypto_nettle_cipher_encrypt(QCryptoCipher *cipher, size_t len, Error **errp) { - QCryptoCipherNettle *ctx = cipher->opaque; + QCryptoCipherNettle *ctx = container_of(cipher, QCryptoCipherNettle, base); if (len & (ctx->blocksize - 1)) { error_setg(errp, "Length %zu must be a multiple of block size %zu", @@ -663,7 +664,7 @@ qcrypto_nettle_cipher_decrypt(QCryptoCipher *cipher, size_t len, Error **errp) { - QCryptoCipherNettle *ctx = cipher->opaque; + QCryptoCipherNettle *ctx = container_of(cipher, QCryptoCipherNettle, base); if (len & (ctx->blocksize - 1)) { error_setg(errp, "Length %zu must be a multiple of block size %zu", @@ -713,7 +714,8 @@ qcrypto_nettle_cipher_setiv(QCryptoCipher *cipher, const uint8_t *iv, size_t niv, Error **errp) { - QCryptoCipherNettle *ctx = cipher->opaque; + QCryptoCipherNettle *ctx = container_of(cipher, QCryptoCipherNettle, base); + if (niv != ctx->blocksize) { error_setg(errp, "Expected IV size %zu not %zu", ctx->blocksize, niv); diff --git a/crypto/cipher.c b/crypto/cipher.c index 3ca4a7e662..737fc0735d 100644 --- a/crypto/cipher.c +++ b/crypto/cipher.c @@ -163,30 +163,27 @@ QCryptoCipher *qcrypto_cipher_new(QCryptoCipherAlgorithm alg, const uint8_t *key, size_t nkey, Error **errp) { - QCryptoCipher *cipher; - void *ctx = NULL; + QCryptoCipher *cipher = NULL; const QCryptoCipherDriver *drv = NULL; #ifdef CONFIG_AF_ALG - ctx = qcrypto_afalg_cipher_ctx_new(alg, mode, key, nkey, NULL); - if (ctx) { + cipher = qcrypto_afalg_cipher_ctx_new(alg, mode, key, nkey, NULL); + if (cipher) { drv = &qcrypto_cipher_afalg_driver; } #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 = drv; return cipher; @@ -226,10 +223,7 @@ int qcrypto_cipher_setiv(QCryptoCipher *cipher, void qcrypto_cipher_free(QCryptoCipher *cipher) { - const QCryptoCipherDriver *drv; if (cipher) { - drv = cipher->driver; - drv->cipher_free(cipher); - g_free(cipher); + cipher->driver->cipher_free(cipher); } } diff --git a/crypto/cipherpriv.h b/crypto/cipherpriv.h index b73be33bd2..437b109b5e 100644 --- a/crypto/cipherpriv.h +++ b/crypto/cipherpriv.h @@ -41,7 +41,7 @@ struct QCryptoCipherDriver { #include "afalgpriv.h" -extern QCryptoAFAlg * +extern QCryptoCipher * qcrypto_afalg_cipher_ctx_new(QCryptoCipherAlgorithm alg, QCryptoCipherMode mode, const uint8_t *key, diff --git a/include/crypto/cipher.h b/include/crypto/cipher.h index cc57179a4d..083e12a7d9 100644 --- a/include/crypto/cipher.h +++ b/include/crypto/cipher.h @@ -80,7 +80,6 @@ typedef struct QCryptoCipherDriver QCryptoCipherDriver; struct QCryptoCipher { QCryptoCipherAlgorithm alg; QCryptoCipherMode mode; - void *opaque; const QCryptoCipherDriver *driver; }; |