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Subject: [PATCH v1 17/41] SUNRPC: Rename .encrypt_v2 and .decrypt_v2 methods
From:   Chuck Lever <cel@kernel.org>
To:     linux-nfs@vger.kernel.org
Cc:     dhowells@redhat.com, simo@redhat.com
Date:   Fri, 13 Jan 2023 10:23:15 -0500
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From: Chuck Lever <chuck.lever@oracle.com>

Clean up: there is now only one encrypt and only one decrypt method,
thus there is no longer a need for the v2-suffixed method names.

Tested-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 include/linux/sunrpc/gss_krb5.h         |   20 ++++----------------
 net/sunrpc/auth_gss/gss_krb5_internal.h |    6 ++++++
 net/sunrpc/auth_gss/gss_krb5_mech.c     |    8 ++++----
 net/sunrpc/auth_gss/gss_krb5_wrap.c     |   12 +++---------
 4 files changed, 17 insertions(+), 29 deletions(-)

diff --git a/include/linux/sunrpc/gss_krb5.h b/include/linux/sunrpc/gss_krb5.h
index 3fb0e72fa656..9c9caa5712b3 100644
--- a/include/linux/sunrpc/gss_krb5.h
+++ b/include/linux/sunrpc/gss_krb5.h
@@ -75,12 +75,10 @@ struct gss_krb5_enctype {
 	u32 (*mk_key) (const struct gss_krb5_enctype *gk5e,
 		       struct xdr_netobj *in,
 		       struct xdr_netobj *out);	/* complete key generation */
-	u32 (*encrypt_v2) (struct krb5_ctx *kctx, u32 offset,
-			   struct xdr_buf *buf,
-			   struct page **pages); /* v2 encryption function */
-	u32 (*decrypt_v2) (struct krb5_ctx *kctx, u32 offset, u32 len,
-			   struct xdr_buf *buf, u32 *headskip,
-			   u32 *tailskip);	/* v2 decryption function */
+	u32 (*encrypt)(struct krb5_ctx *kctx, u32 offset,
+			struct xdr_buf *buf, struct page **pages);
+	u32 (*decrypt)(struct krb5_ctx *kctx, u32 offset, u32 len,
+		       struct xdr_buf *buf, u32 *headskip, u32 *tailskip);
 	u32 (*get_mic)(struct krb5_ctx *kctx, struct xdr_buf *text,
 		       struct xdr_netobj *token);
 	u32 (*verify_mic)(struct krb5_ctx *kctx, struct xdr_buf *message_buffer,
@@ -280,14 +278,4 @@ gss_krb5_aes_make_key(const struct gss_krb5_enctype *gk5e,
 		      struct xdr_netobj *randombits,
 		      struct xdr_netobj *key);
 
-u32
-gss_krb5_aes_encrypt(struct krb5_ctx *kctx, u32 offset,
-		     struct xdr_buf *buf,
-		     struct page **pages);
-
-u32
-gss_krb5_aes_decrypt(struct krb5_ctx *kctx, u32 offset, u32 len,
-		     struct xdr_buf *buf, u32 *plainoffset,
-		     u32 *plainlen);
-
 #endif /* _LINUX_SUNRPC_GSS_KRB5_H */
diff --git a/net/sunrpc/auth_gss/gss_krb5_internal.h b/net/sunrpc/auth_gss/gss_krb5_internal.h
index f4dc0f075144..0003128e05e8 100644
--- a/net/sunrpc/auth_gss/gss_krb5_internal.h
+++ b/net/sunrpc/auth_gss/gss_krb5_internal.h
@@ -50,4 +50,10 @@ u32 krb5_encrypt(struct crypto_sync_skcipher *key, void *iv, void *in,
 u32 krb5_decrypt(struct crypto_sync_skcipher *key, void *iv, void *in,
 		 void *out, int length);
 
+u32 gss_krb5_aes_encrypt(struct krb5_ctx *kctx, u32 offset,
+			 struct xdr_buf *buf, struct page **pages);
+
+u32 gss_krb5_aes_decrypt(struct krb5_ctx *kctx, u32 offset, u32 len,
+			 struct xdr_buf *buf, u32 *plainoffset, u32 *plainlen);
+
 #endif /* _NET_SUNRPC_AUTH_GSS_KRB5_INTERNAL_H */
diff --git a/net/sunrpc/auth_gss/gss_krb5_mech.c b/net/sunrpc/auth_gss/gss_krb5_mech.c
index 8780f80b5f66..794bb6826dce 100644
--- a/net/sunrpc/auth_gss/gss_krb5_mech.c
+++ b/net/sunrpc/auth_gss/gss_krb5_mech.c
@@ -98,8 +98,8 @@ static const struct gss_krb5_enctype supported_gss_krb5_enctypes[] = {
 	  .cksum_name = "hmac(sha1)",
 	  .import_ctx = gss_krb5_import_ctx_v2,
 	  .mk_key = gss_krb5_aes_make_key,
-	  .encrypt_v2 = gss_krb5_aes_encrypt,
-	  .decrypt_v2 = gss_krb5_aes_decrypt,
+	  .encrypt = gss_krb5_aes_encrypt,
+	  .decrypt = gss_krb5_aes_decrypt,
 
 	  .get_mic = gss_krb5_get_mic_v2,
 	  .verify_mic = gss_krb5_verify_mic_v2,
@@ -125,8 +125,8 @@ static const struct gss_krb5_enctype supported_gss_krb5_enctypes[] = {
 	  .cksum_name = "hmac(sha1)",
 	  .import_ctx = gss_krb5_import_ctx_v2,
 	  .mk_key = gss_krb5_aes_make_key,
-	  .encrypt_v2 = gss_krb5_aes_encrypt,
-	  .decrypt_v2 = gss_krb5_aes_decrypt,
+	  .encrypt = gss_krb5_aes_encrypt,
+	  .decrypt = gss_krb5_aes_decrypt,
 
 	  .get_mic = gss_krb5_get_mic_v2,
 	  .verify_mic = gss_krb5_verify_mic_v2,
diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c
index 13e633bcbc2d..5491e083ee98 100644
--- a/net/sunrpc/auth_gss/gss_krb5_wrap.c
+++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c
@@ -390,9 +390,6 @@ gss_krb5_wrap_v2(struct krb5_ctx *kctx, int offset,
 
 	dprintk("RPC:       %s\n", __func__);
 
-	if (kctx->gk5e->encrypt_v2 == NULL)
-		return GSS_S_FAILURE;
-
 	/* make room for gss token header */
 	if (xdr_extend_head(buf, offset, GSS_KRB5_TOK_HDR_LEN))
 		return GSS_S_FAILURE;
@@ -420,7 +417,7 @@ gss_krb5_wrap_v2(struct krb5_ctx *kctx, int offset,
 	be64ptr = (__be64 *)be16ptr;
 	*be64ptr = cpu_to_be64(atomic64_fetch_inc(&kctx->seq_send64));
 
-	err = (*kctx->gk5e->encrypt_v2)(kctx, offset, buf, pages);
+	err = (*kctx->gk5e->encrypt)(kctx, offset, buf, pages);
 	if (err)
 		return err;
 
@@ -445,9 +442,6 @@ gss_krb5_unwrap_v2(struct krb5_ctx *kctx, int offset, int len,
 
 	dprintk("RPC:       %s\n", __func__);
 
-	if (kctx->gk5e->decrypt_v2 == NULL)
-		return GSS_S_FAILURE;
-
 	ptr = buf->head[0].iov_base + offset;
 
 	if (be16_to_cpu(*((__be16 *)ptr)) != KG2_TOK_WRAP)
@@ -477,8 +471,8 @@ gss_krb5_unwrap_v2(struct krb5_ctx *kctx, int offset, int len,
 	if (rrc != 0)
 		rotate_left(offset + 16, buf, rrc);
 
-	err = (*kctx->gk5e->decrypt_v2)(kctx, offset, len, buf,
-					&headskip, &tailskip);
+	err = (*kctx->gk5e->decrypt)(kctx, offset, len, buf,
+				     &headskip, &tailskip);
 	if (err)
 		return GSS_S_FAILURE;