git: c4026909bdfe - main - ossl: Add support for ETA mode

The branch main has been updated by wma:

URL: https://cgit.FreeBSD.org/src/commit/?id=c4026909bdfef0394bd4db41d2d102f609ae92b8

commit c4026909bdfef0394bd4db41d2d102f609ae92b8
Author:     Kornel Duleba <mindal@semihalf.com>
AuthorDate: 2021-11-02 11:57:20 +0000
Commit:     Wojciech Macek <wma@FreeBSD.org>
CommitDate: 2021-11-08 09:53:36 +0000

    ossl: Add support for ETA mode
    
    Now that the AES-CBC is supported we can handle ETA requests.
    
    Sponsored by:           Stormshield
    Obtained from:          Semihalf
    Reviewed by:            jhb
    Differential revision:  https://reviews.freebsd.org/D32100
---
 sys/crypto/openssl/ossl.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/sys/crypto/openssl/ossl.c b/sys/crypto/openssl/ossl.c
index f46b5a966bb1..f41ff09c371d 100644
--- a/sys/crypto/openssl/ossl.c
+++ b/sys/crypto/openssl/ossl.c
@@ -172,6 +172,13 @@ ossl_probesession(device_t dev, const struct crypto_session_params *csp)
 		if (ossl_lookup_cipher(csp) == NULL)
 			return (EINVAL);
 		break;
+	case CSP_MODE_ETA:
+		if (!sc->has_aes ||
+		    csp->csp_cipher_alg == CRYPTO_CHACHA20 ||
+		    ossl_lookup_hash(csp) == NULL ||
+		    ossl_lookup_cipher(csp) == NULL)
+			return (EINVAL);
+		break;
 	case CSP_MODE_AEAD:
 		switch (csp->csp_cipher_alg) {
 		case CRYPTO_CHACHA20_POLY1305:
@@ -268,6 +275,10 @@ ossl_newsession(device_t dev, crypto_session_t cses,
 	case CSP_MODE_CIPHER:
 		error = ossl_newsession_cipher(s, csp);
 		break;
+	case CSP_MODE_ETA:
+		ossl_newsession_hash(s, csp);
+		error = ossl_newsession_cipher(s, csp);
+		break;
 	}
 
 	return (error);
@@ -341,6 +352,25 @@ out:
 	return (error);
 }
 
+static int
+ossl_process_eta(struct ossl_session *s, struct cryptop *crp,
+    const struct crypto_session_params *csp)
+{
+	int error;
+
+	if (CRYPTO_OP_IS_ENCRYPT(crp->crp_op)) {
+		error = s->cipher.cipher->process(&s->cipher, crp, csp);
+		if (error == 0)
+			error = ossl_process_hash(s, crp, csp);
+	} else {
+		error = ossl_process_hash(s, crp, csp);
+		if (error == 0)
+			error = s->cipher.cipher->process(&s->cipher, crp, csp);
+	}
+
+	return (error);
+}
+
 static int
 ossl_process(device_t dev, struct cryptop *crp, int hint)
 {
@@ -366,6 +396,9 @@ ossl_process(device_t dev, struct cryptop *crp, int hint)
 	case CSP_MODE_CIPHER:
 		error = s->cipher.cipher->process(&s->cipher, crp, csp);
 		break;
+	case CSP_MODE_ETA:
+		error = ossl_process_eta(s, crp, csp);
+		break;
 	case CSP_MODE_AEAD:
 		if (CRYPTO_OP_IS_ENCRYPT(crp->crp_op))
 			error = ossl_chacha20_poly1305_encrypt(crp, csp);