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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/security/integrity/evm/evm_secfs.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/security/integrity/evm/evm_secfs.c')
-rw-r--r--ANDROID_3.4.5/security/integrity/evm/evm_secfs.c108
1 files changed, 0 insertions, 108 deletions
diff --git a/ANDROID_3.4.5/security/integrity/evm/evm_secfs.c b/ANDROID_3.4.5/security/integrity/evm/evm_secfs.c
deleted file mode 100644
index ac762995..00000000
--- a/ANDROID_3.4.5/security/integrity/evm/evm_secfs.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * Copyright (C) 2010 IBM Corporation
- *
- * Authors:
- * Mimi Zohar <zohar@us.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, version 2 of the License.
- *
- * File: evm_secfs.c
- * - Used to signal when key is on keyring
- * - Get the key and enable EVM
- */
-
-#include <linux/uaccess.h>
-#include <linux/module.h>
-#include "evm.h"
-
-static struct dentry *evm_init_tpm;
-
-/**
- * evm_read_key - read() for <securityfs>/evm
- *
- * @filp: file pointer, not actually used
- * @buf: where to put the result
- * @count: maximum to send along
- * @ppos: where to start
- *
- * Returns number of bytes read or error code, as appropriate
- */
-static ssize_t evm_read_key(struct file *filp, char __user *buf,
- size_t count, loff_t *ppos)
-{
- char temp[80];
- ssize_t rc;
-
- if (*ppos != 0)
- return 0;
-
- sprintf(temp, "%d", evm_initialized);
- rc = simple_read_from_buffer(buf, count, ppos, temp, strlen(temp));
-
- return rc;
-}
-
-/**
- * evm_write_key - write() for <securityfs>/evm
- * @file: file pointer, not actually used
- * @buf: where to get the data from
- * @count: bytes sent
- * @ppos: where to start
- *
- * Used to signal that key is on the kernel key ring.
- * - get the integrity hmac key from the kernel key ring
- * - create list of hmac protected extended attributes
- * Returns number of bytes written or error code, as appropriate
- */
-static ssize_t evm_write_key(struct file *file, const char __user *buf,
- size_t count, loff_t *ppos)
-{
- char temp[80];
- int i, error;
-
- if (!capable(CAP_SYS_ADMIN) || evm_initialized)
- return -EPERM;
-
- if (count >= sizeof(temp) || count == 0)
- return -EINVAL;
-
- if (copy_from_user(temp, buf, count) != 0)
- return -EFAULT;
-
- temp[count] = '\0';
-
- if ((sscanf(temp, "%d", &i) != 1) || (i != 1))
- return -EINVAL;
-
- error = evm_init_key();
- if (!error) {
- evm_initialized = 1;
- pr_info("EVM: initialized\n");
- } else
- pr_err("EVM: initialization failed\n");
- return count;
-}
-
-static const struct file_operations evm_key_ops = {
- .read = evm_read_key,
- .write = evm_write_key,
-};
-
-int __init evm_init_secfs(void)
-{
- int error = 0;
-
- evm_init_tpm = securityfs_create_file("evm", S_IRUSR | S_IRGRP,
- NULL, NULL, &evm_key_ops);
- if (!evm_init_tpm || IS_ERR(evm_init_tpm))
- error = -EFAULT;
- return error;
-}
-
-void __exit evm_cleanup_secfs(void)
-{
- if (evm_init_tpm)
- securityfs_remove(evm_init_tpm);
-}