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D33613.diff
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D33613.diff
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diff --git a/sys/opencrypto/cryptodev.c b/sys/opencrypto/cryptodev.c
--- a/sys/opencrypto/cryptodev.c
+++ b/sys/opencrypto/cryptodev.c
@@ -339,71 +339,11 @@
void *key = NULL;
void *mackey = NULL;
crypto_session_t cses;
- int crid, error;
+ int crid, error, mac;
- switch (sop->cipher) {
- case 0:
- txform = NULL;
- break;
- case CRYPTO_AES_CBC:
- txform = &enc_xform_aes_cbc;
- break;
- case CRYPTO_AES_XTS:
- txform = &enc_xform_aes_xts;
- break;
- case CRYPTO_NULL_CBC:
- txform = &enc_xform_null;
- break;
- case CRYPTO_CAMELLIA_CBC:
- txform = &enc_xform_camellia;
- break;
- case CRYPTO_AES_ICM:
- txform = &enc_xform_aes_icm;
- break;
- case CRYPTO_AES_NIST_GCM_16:
- txform = &enc_xform_aes_nist_gcm;
- break;
- case CRYPTO_CHACHA20:
- txform = &enc_xform_chacha20;
- break;
- case CRYPTO_AES_CCM_16:
- txform = &enc_xform_ccm;
- break;
- case CRYPTO_CHACHA20_POLY1305:
- txform = &enc_xform_chacha20_poly1305;
- break;
- default:
- CRYPTDEB("invalid cipher");
- SDT_PROBE1(opencrypto, dev, ioctl, error, __LINE__);
- return (EINVAL);
- }
-
- switch (sop->mac) {
- case 0:
- thash = NULL;
- break;
- case CRYPTO_POLY1305:
- thash = &auth_hash_poly1305;
- break;
- case CRYPTO_SHA1_HMAC:
- thash = &auth_hash_hmac_sha1;
- break;
- case CRYPTO_SHA2_224_HMAC:
- thash = &auth_hash_hmac_sha2_224;
- break;
- case CRYPTO_SHA2_256_HMAC:
- thash = &auth_hash_hmac_sha2_256;
- break;
- case CRYPTO_SHA2_384_HMAC:
- thash = &auth_hash_hmac_sha2_384;
- break;
- case CRYPTO_SHA2_512_HMAC:
- thash = &auth_hash_hmac_sha2_512;
- break;
- case CRYPTO_RIPEMD160_HMAC:
- thash = &auth_hash_hmac_ripemd_160;
- break;
+ mac = sop->mac;
#ifdef COMPAT_FREEBSD12
+ switch (sop->mac) {
case CRYPTO_AES_128_NIST_GMAC:
case CRYPTO_AES_192_NIST_GMAC:
case CRYPTO_AES_256_NIST_GMAC:
@@ -413,138 +353,58 @@
SDT_PROBE1(opencrypto, dev, ioctl, error, __LINE__);
return (EINVAL);
}
- break;
-#endif
- case CRYPTO_AES_NIST_GMAC:
- switch (sop->mackeylen * 8) {
- case 128:
- thash = &auth_hash_nist_gmac_aes_128;
- break;
- case 192:
- thash = &auth_hash_nist_gmac_aes_192;
- break;
- case 256:
- thash = &auth_hash_nist_gmac_aes_256;
- break;
- default:
- CRYPTDEB("invalid GMAC key length");
+ if (sop->keylen != sop->mackeylen) {
SDT_PROBE1(opencrypto, dev, ioctl, error, __LINE__);
return (EINVAL);
}
+ mac = 0;
break;
case CRYPTO_AES_CCM_CBC_MAC:
- switch (sop->mackeylen) {
- case 16:
- thash = &auth_hash_ccm_cbc_mac_128;
- break;
- case 24:
- thash = &auth_hash_ccm_cbc_mac_192;
- break;
- case 32:
- thash = &auth_hash_ccm_cbc_mac_256;
- break;
- default:
- CRYPTDEB("Invalid CBC MAC key size %d", sop->keylen);
+ /* Should always be paired with CCM. */
+ if (sop->cipher != CRYPTO_AES_CCM_16) {
+ CRYPTDEB("CBC-MAC without CCM");
SDT_PROBE1(opencrypto, dev, ioctl, error, __LINE__);
return (EINVAL);
}
+ if (sop->keylen != sop->mackeylen) {
+ SDT_PROBE1(opencrypto, dev, ioctl, error, __LINE__);
+ return (EINVAL);
+ }
+ mac = 0;
break;
- case CRYPTO_RIPEMD160:
- thash = &auth_hash_ripemd_160;
- break;
- case CRYPTO_SHA1:
- thash = &auth_hash_sha1;
- break;
- case CRYPTO_SHA2_224:
- thash = &auth_hash_sha2_224;
- break;
- case CRYPTO_SHA2_256:
- thash = &auth_hash_sha2_256;
- break;
- case CRYPTO_SHA2_384:
- thash = &auth_hash_sha2_384;
- break;
- case CRYPTO_SHA2_512:
- thash = &auth_hash_sha2_512;
- break;
-
- case CRYPTO_NULL_HMAC:
- thash = &auth_hash_null;
- break;
-
- case CRYPTO_BLAKE2B:
- thash = &auth_hash_blake2b;
- break;
- case CRYPTO_BLAKE2S:
- thash = &auth_hash_blake2s;
- break;
-
- default:
- CRYPTDEB("invalid mac");
- SDT_PROBE1(opencrypto, dev, ioctl, error, __LINE__);
- return (EINVAL);
- }
-
- if (txform == NULL && thash == NULL) {
- SDT_PROBE1(opencrypto, dev, ioctl, error, __LINE__);
- return (EINVAL);
}
+#endif
memset(&csp, 0, sizeof(csp));
if (use_outputbuffers)
csp.csp_flags |= CSP_F_SEPARATE_OUTPUT;
+ if (mac != 0) {
+ csp.csp_auth_alg = mac;
+ csp.csp_auth_klen = sop->mackeylen;
+ }
+ if (sop->cipher != 0) {
+ csp.csp_cipher_alg = sop->cipher;
+ csp.csp_cipher_klen = sop->keylen;
+ }
+ thash = crypto_auth_hash(&csp);
+ txform = crypto_cipher(&csp);
- if (sop->cipher == CRYPTO_AES_NIST_GCM_16) {
- switch (sop->mac) {
-#ifdef COMPAT_FREEBSD12
- case CRYPTO_AES_128_NIST_GMAC:
- case CRYPTO_AES_192_NIST_GMAC:
- case CRYPTO_AES_256_NIST_GMAC:
- if (sop->keylen != sop->mackeylen) {
- SDT_PROBE1(opencrypto, dev, ioctl, error,
- __LINE__);
- return (EINVAL);
- }
- break;
-#endif
- case 0:
- break;
- default:
+ if (txform != NULL && txform->macsize != 0) {
+ if (mac != 0) {
SDT_PROBE1(opencrypto, dev, ioctl, error, __LINE__);
return (EINVAL);
}
csp.csp_mode = CSP_MODE_AEAD;
- } else if (sop->cipher == CRYPTO_AES_CCM_16) {
- switch (sop->mac) {
-#ifdef COMPAT_FREEBSD12
- case CRYPTO_AES_CCM_CBC_MAC:
- if (sop->keylen != sop->mackeylen) {
- SDT_PROBE1(opencrypto, dev, ioctl, error,
- __LINE__);
- return (EINVAL);
- }
- thash = NULL;
- break;
-#endif
- case 0:
- break;
- default:
- SDT_PROBE1(opencrypto, dev, ioctl, error, __LINE__);
- return (EINVAL);
- }
- csp.csp_mode = CSP_MODE_AEAD;
- } else if (sop->cipher == CRYPTO_CHACHA20_POLY1305) {
- if (sop->mac != 0) {
- SDT_PROBE1(opencrypto, dev, ioctl, error, __LINE__);
- return (EINVAL);
- }
- csp.csp_mode = CSP_MODE_AEAD;
- } else if (txform != NULL && thash != NULL)
+ } else if (txform != NULL && thash != NULL) {
csp.csp_mode = CSP_MODE_ETA;
- else if (txform != NULL)
+ } else if (txform != NULL) {
csp.csp_mode = CSP_MODE_CIPHER;
- else
+ } else if (thash != NULL) {
csp.csp_mode = CSP_MODE_DIGEST;
+ } else {
+ SDT_PROBE1(opencrypto, dev, ioctl, error, __LINE__);
+ return (EINVAL);
+ }
switch (csp.csp_mode) {
case CSP_MODE_AEAD:
@@ -555,8 +415,6 @@
}
if (txform != NULL) {
- csp.csp_cipher_alg = txform->type;
- csp.csp_cipher_klen = sop->keylen;
if (sop->keylen > txform->maxkey ||
sop->keylen < txform->minkey) {
CRYPTDEB("invalid cipher parameters");
@@ -577,8 +435,6 @@
}
if (thash != NULL) {
- csp.csp_auth_alg = thash->type;
- csp.csp_auth_klen = sop->mackeylen;
if (sop->mackeylen > thash->keysize || sop->mackeylen < 0) {
CRYPTDEB("invalid mac key length");
error = EINVAL;
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D33613.diff (6 KB)
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D33613: /dev/crypto: Minimize cipher-specific logic.
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