linux-kernel - [PATCH 02/18] crypto/krb5: Add some constants out of sunrpc headers

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Date:   Thu, 12 Nov 2020 12:58:01 +0000
From:   David Howells <dhowells@...hat.com>
To:     herbert@...dor.apana.org.au, bfields@...ldses.org
Cc:     dhowells@...hat.com, trond.myklebust@...merspace.com,
        linux-crypto@...r.kernel.org, linux-afs@...ts.infradead.org,
        linux-cifs@...r.kernel.org, linux-nfs@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 02/18] crypto/krb5: Add some constants out of sunrpc headers

Add some constants from the sunrpc headers.

Signed-off-by: David Howells <dhowells@...hat.com>
---

 include/crypto/krb5.h |   39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/include/crypto/krb5.h b/include/crypto/krb5.h
index 2bd6cfe50b85..a7e4ab4e1348 100644
--- a/include/crypto/krb5.h
+++ b/include/crypto/krb5.h
@@ -15,6 +15,45 @@
 struct crypto_shash;
 struct scatterlist;
 
+/* per Kerberos v5 protocol spec crypto types from the wire.
+ * these get mapped to linux kernel crypto routines.
+ */
+#define KRB5_ENCTYPE_NULL			0x0000
+#define KRB5_ENCTYPE_DES_CBC_CRC		0x0001	/* DES cbc mode with CRC-32 */
+#define KRB5_ENCTYPE_DES_CBC_MD4		0x0002	/* DES cbc mode with RSA-MD4 */
+#define KRB5_ENCTYPE_DES_CBC_MD5		0x0003	/* DES cbc mode with RSA-MD5 */
+#define KRB5_ENCTYPE_DES_CBC_RAW		0x0004	/* DES cbc mode raw */
+/* XXX deprecated? */
+#define KRB5_ENCTYPE_DES3_CBC_SHA		0x0005	/* DES-3 cbc mode with NIST-SHA */
+#define KRB5_ENCTYPE_DES3_CBC_RAW		0x0006	/* DES-3 cbc mode raw */
+#define KRB5_ENCTYPE_DES_HMAC_SHA1		0x0008
+#define KRB5_ENCTYPE_DES3_CBC_SHA1		0x0010
+#define KRB5_ENCTYPE_AES128_CTS_HMAC_SHA1_96	0x0011
+#define KRB5_ENCTYPE_AES256_CTS_HMAC_SHA1_96	0x0012
+#define KRB5_ENCTYPE_ARCFOUR_HMAC		0x0017
+#define KRB5_ENCTYPE_ARCFOUR_HMAC_EXP		0x0018
+#define KRB5_ENCTYPE_UNKNOWN			0x01ff
+
+#define KRB5_CKSUMTYPE_CRC32			0x0001
+#define KRB5_CKSUMTYPE_RSA_MD4			0x0002
+#define KRB5_CKSUMTYPE_RSA_MD4_DES		0x0003
+#define KRB5_CKSUMTYPE_DESCBC			0x0004
+#define KRB5_CKSUMTYPE_RSA_MD5			0x0007
+#define KRB5_CKSUMTYPE_RSA_MD5_DES		0x0008
+#define KRB5_CKSUMTYPE_NIST_SHA			0x0009
+#define KRB5_CKSUMTYPE_HMAC_SHA1_DES3		0x000c
+#define KRB5_CKSUMTYPE_HMAC_SHA1_96_AES128	0x000f
+#define KRB5_CKSUMTYPE_HMAC_SHA1_96_AES256	0x0010
+#define KRB5_CKSUMTYPE_HMAC_MD5_ARCFOUR		-138 /* Microsoft md5 hmac cksumtype */
+
+/*
+ * Constants used for key derivation
+ */
+/* from rfc3961 */
+#define KEY_USAGE_SEED_CHECKSUM         (0x99)
+#define KEY_USAGE_SEED_ENCRYPTION       (0xAA)
+#define KEY_USAGE_SEED_INTEGRITY        (0x55)
+
 struct krb5_buffer {
 	unsigned int	len;
 	void		*data;