ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/fs/ecryptfs/debug.c b/marvell/linux/fs/ecryptfs/debug.c
new file mode 100644
index 0000000..1f65e99
--- /dev/null
+++ b/marvell/linux/fs/ecryptfs/debug.c
@@ -0,0 +1,91 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/**
+ * eCryptfs: Linux filesystem encryption layer
+ * Functions only useful for debugging.
+ *
+ * Copyright (C) 2006 International Business Machines Corp.
+ * Author(s): Michael A. Halcrow <mahalcro@us.ibm.com>
+ */
+
+#include "ecryptfs_kernel.h"
+
+/**
+ * ecryptfs_dump_auth_tok - debug function to print auth toks
+ *
+ * This function will print the contents of an ecryptfs authentication
+ * token.
+ */
+void ecryptfs_dump_auth_tok(struct ecryptfs_auth_tok *auth_tok)
+{
+ char salt[ECRYPTFS_SALT_SIZE * 2 + 1];
+ char sig[ECRYPTFS_SIG_SIZE_HEX + 1];
+
+ ecryptfs_printk(KERN_DEBUG, "Auth tok at mem loc [%p]:\n",
+ auth_tok);
+ if (auth_tok->flags & ECRYPTFS_PRIVATE_KEY) {
+ ecryptfs_printk(KERN_DEBUG, " * private key type\n");
+ } else {
+ ecryptfs_printk(KERN_DEBUG, " * passphrase type\n");
+ ecryptfs_to_hex(salt, auth_tok->token.password.salt,
+ ECRYPTFS_SALT_SIZE);
+ salt[ECRYPTFS_SALT_SIZE * 2] = '\0';
+ ecryptfs_printk(KERN_DEBUG, " * salt = [%s]\n", salt);
+ if (auth_tok->token.password.flags &
+ ECRYPTFS_PERSISTENT_PASSWORD) {
+ ecryptfs_printk(KERN_DEBUG, " * persistent\n");
+ }
+ memcpy(sig, auth_tok->token.password.signature,
+ ECRYPTFS_SIG_SIZE_HEX);
+ sig[ECRYPTFS_SIG_SIZE_HEX] = '\0';
+ ecryptfs_printk(KERN_DEBUG, " * signature = [%s]\n", sig);
+ }
+ ecryptfs_printk(KERN_DEBUG, " * session_key.flags = [0x%x]\n",
+ auth_tok->session_key.flags);
+ if (auth_tok->session_key.flags
+ & ECRYPTFS_USERSPACE_SHOULD_TRY_TO_DECRYPT)
+ ecryptfs_printk(KERN_DEBUG,
+ " * Userspace decrypt request set\n");
+ if (auth_tok->session_key.flags
+ & ECRYPTFS_USERSPACE_SHOULD_TRY_TO_ENCRYPT)
+ ecryptfs_printk(KERN_DEBUG,
+ " * Userspace encrypt request set\n");
+ if (auth_tok->session_key.flags & ECRYPTFS_CONTAINS_DECRYPTED_KEY) {
+ ecryptfs_printk(KERN_DEBUG, " * Contains decrypted key\n");
+ ecryptfs_printk(KERN_DEBUG,
+ " * session_key.decrypted_key_size = [0x%x]\n",
+ auth_tok->session_key.decrypted_key_size);
+ ecryptfs_printk(KERN_DEBUG, " * Decrypted session key "
+ "dump:\n");
+ if (ecryptfs_verbosity > 0)
+ ecryptfs_dump_hex(auth_tok->session_key.decrypted_key,
+ ECRYPTFS_DEFAULT_KEY_BYTES);
+ }
+ if (auth_tok->session_key.flags & ECRYPTFS_CONTAINS_ENCRYPTED_KEY) {
+ ecryptfs_printk(KERN_DEBUG, " * Contains encrypted key\n");
+ ecryptfs_printk(KERN_DEBUG,
+ " * session_key.encrypted_key_size = [0x%x]\n",
+ auth_tok->session_key.encrypted_key_size);
+ ecryptfs_printk(KERN_DEBUG, " * Encrypted session key "
+ "dump:\n");
+ if (ecryptfs_verbosity > 0)
+ ecryptfs_dump_hex(auth_tok->session_key.encrypted_key,
+ auth_tok->session_key.
+ encrypted_key_size);
+ }
+}
+
+/**
+ * ecryptfs_dump_hex - debug hex printer
+ * @data: string of bytes to be printed
+ * @bytes: number of bytes to print
+ *
+ * Dump hexadecimal representation of char array
+ */
+void ecryptfs_dump_hex(char *data, int bytes)
+{
+ if (ecryptfs_verbosity < 1)
+ return;
+
+ print_hex_dump(KERN_DEBUG, "ecryptfs: ", DUMP_PREFIX_OFFSET, 16, 1,
+ data, bytes, false);
+}