LU-3289 gss: Interface and code changes for shared key

[fs/lustre-release.git] / lustre / ptlrpc / gss / gss_crypto.h

diff --git a/lustre/ptlrpc/gss/gss_crypto.h b/lustre/ptlrpc/gss/gss_crypto.h
new file mode 100644 (file)
index 0000000..91d1a4b
--- /dev/null
+++ b/lustre/ptlrpc/gss/gss_crypto.h
@@ -0,0 +1,81 @@
+/*
+ * Modifications for Lustre
+ *
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ *
+ * Author: Eric Mei <ericm@clusterfs.com>
+ */
+
+/*
+ *  linux/include/linux/sunrpc/gss_krb5_types.h
+ *
+ *  Adapted from MIT Kerberos 5-1.2.1 lib/include/krb5.h,
+ *  lib/gssapi/krb5/gssapiP_krb5.h, and others
+ *
+ *  Copyright (c) 2000 The Regents of the University of Michigan.
+ *  All rights reserved.
+ *
+ *  Andy Adamson   <andros@umich.edu>
+ *  Bruce Fields   <bfields@umich.edu>
+ */
+
+/*
+ * Copyright 1995 by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
+ *
+ * Export of this software from the United States of America may
+ *   require a specific license from the United States Government.
+ *   It is the responsibility of any person or organization contemplating
+ *   export to obtain such a license before exporting.
+ *
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of M.I.T. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission.  Furthermore if you modify this software you must label
+ * your software as modified software and not distribute it in such a
+ * fashion that it might be confused with the original M.I.T. software.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose.  It is provided "as is" without express
+ * or implied warranty.
+ *
+ */
+
+#ifndef PTLRPC_GSS_UTILS_H
+#define PTLRPC_GSS_UTILS_H
+
+#include "gss_internal.h"
+
+struct gss_keyblock {
+       rawobj_t                 kb_key;
+       struct crypto_blkcipher *kb_tfm;
+};
+
+int gss_keyblock_init(struct gss_keyblock *kb, char *alg_name,
+                     const int alg_mode);
+void gss_keyblock_free(struct gss_keyblock *kb);
+int gss_keyblock_dup(struct gss_keyblock *new, struct gss_keyblock *kb);
+int gss_get_bytes(char **ptr, const char *end, void *res, size_t len);
+int gss_get_rawobj(char **ptr, const char *end, rawobj_t *res);
+int gss_get_keyblock(char **ptr, const char *end, struct gss_keyblock *kb,
+                    __u32 keysize);
+int gss_setup_sgtable(struct sg_table *sgt, struct scatterlist *prealloc_sg,
+                     const void *buf, unsigned int buf_len);
+void gss_teardown_sgtable(struct sg_table *sgt);
+int gss_crypt_generic(struct crypto_blkcipher *tfm, int decrypt, void *iv,
+                       void *in, void *out, int length);
+int gss_digest_hmac(struct crypto_hash *tfm, rawobj_t *key, rawobj_t *hdr,
+                   int msgcnt, rawobj_t *msgs, int iovcnt, lnet_kiov_t *iovs,
+                   rawobj_t *cksum);
+int gss_digest_norm(struct crypto_hash *tfm, struct gss_keyblock *kb,
+                   rawobj_t *hdr, int msgcnt, rawobj_t *msgs, int iovcnt,
+                   lnet_kiov_t *iovs, rawobj_t *cksum);
+int gss_add_padding(rawobj_t *msg, int msg_buflen, int blocksize);
+int gss_crypt_rawobjs(struct crypto_blkcipher *tfm, int use_internal_iv,
+                     int inobj_cnt, rawobj_t *inobjs, rawobj_t *outobj,
+                     int enc);
+
+#endif /* PTLRPC_GSS_UTILS_H */