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authorJames Morris <jmorris@namei.org>2011-08-09 10:31:03 +1000
committerJames Morris <jmorris@namei.org>2011-08-09 10:31:03 +1000
commit5a2f3a02aea164f4f59c0c3497772090a411b462 (patch)
treed3ebe03d4f97575290087843960baa01de3acd0a /security/security.c
parent1d568ab068c021672d6cd7f50f92a3695a921ffb (diff)
parent817b54aa45db03437c6d09a7693fc6926eb8e822 (diff)
downloadlinux-5a2f3a02aea164f4f59c0c3497772090a411b462.tar.gz
Merge branch 'next-evm' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/ima-2.6 into next
Conflicts: fs/attr.c Resolve conflict manually. Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/security.c')
-rw-r--r--security/security.c71
1 files changed, 64 insertions, 7 deletions
diff --git a/security/security.c b/security/security.c
index 0e4fccfef12..a6328421a05 100644
--- a/security/security.c
+++ b/security/security.c
@@ -16,7 +16,11 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/security.h>
+#include <linux/integrity.h>
#include <linux/ima.h>
+#include <linux/evm.h>
+
+#define MAX_LSM_EVM_XATTR 2
/* Boot-time LSM user choice */
static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
@@ -334,20 +338,57 @@ int security_inode_alloc(struct inode *inode)
void security_inode_free(struct inode *inode)
{
- ima_inode_free(inode);
+ integrity_inode_free(inode);
security_ops->inode_free_security(inode);
}
int security_inode_init_security(struct inode *inode, struct inode *dir,
- const struct qstr *qstr, char **name,
- void **value, size_t *len)
+ const struct qstr *qstr,
+ const initxattrs initxattrs, void *fs_data)
+{
+ struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1];
+ struct xattr *lsm_xattr, *evm_xattr, *xattr;
+ int ret;
+
+ if (unlikely(IS_PRIVATE(inode)))
+ return -EOPNOTSUPP;
+
+ memset(new_xattrs, 0, sizeof new_xattrs);
+ if (!initxattrs)
+ return security_ops->inode_init_security(inode, dir, qstr,
+ NULL, NULL, NULL);
+ lsm_xattr = new_xattrs;
+ ret = security_ops->inode_init_security(inode, dir, qstr,
+ &lsm_xattr->name,
+ &lsm_xattr->value,
+ &lsm_xattr->value_len);
+ if (ret)
+ goto out;
+
+ evm_xattr = lsm_xattr + 1;
+ ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr);
+ if (ret)
+ goto out;
+ ret = initxattrs(inode, new_xattrs, fs_data);
+out:
+ for (xattr = new_xattrs; xattr->name != NULL; xattr++) {
+ kfree(xattr->name);
+ kfree(xattr->value);
+ }
+ return (ret == -EOPNOTSUPP) ? 0 : ret;
+}
+EXPORT_SYMBOL(security_inode_init_security);
+
+int security_old_inode_init_security(struct inode *inode, struct inode *dir,
+ const struct qstr *qstr, char **name,
+ void **value, size_t *len)
{
if (unlikely(IS_PRIVATE(inode)))
return -EOPNOTSUPP;
return security_ops->inode_init_security(inode, dir, qstr, name, value,
len);
}
-EXPORT_SYMBOL(security_inode_init_security);
+EXPORT_SYMBOL(security_old_inode_init_security);
#ifdef CONFIG_SECURITY_PATH
int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
@@ -523,9 +564,14 @@ int security_inode_permission(struct inode *inode, int mask)
int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
{
+ int ret;
+
if (unlikely(IS_PRIVATE(dentry->d_inode)))
return 0;
- return security_ops->inode_setattr(dentry, attr);
+ ret = security_ops->inode_setattr(dentry, attr);
+ if (ret)
+ return ret;
+ return evm_inode_setattr(dentry, attr);
}
EXPORT_SYMBOL_GPL(security_inode_setattr);
@@ -539,9 +585,14 @@ int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
int security_inode_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags)
{
+ int ret;
+
if (unlikely(IS_PRIVATE(dentry->d_inode)))
return 0;
- return security_ops->inode_setxattr(dentry, name, value, size, flags);
+ ret = security_ops->inode_setxattr(dentry, name, value, size, flags);
+ if (ret)
+ return ret;
+ return evm_inode_setxattr(dentry, name, value, size);
}
void security_inode_post_setxattr(struct dentry *dentry, const char *name,
@@ -550,6 +601,7 @@ void security_inode_post_setxattr(struct dentry *dentry, const char *name,
if (unlikely(IS_PRIVATE(dentry->d_inode)))
return;
security_ops->inode_post_setxattr(dentry, name, value, size, flags);
+ evm_inode_post_setxattr(dentry, name, value, size);
}
int security_inode_getxattr(struct dentry *dentry, const char *name)
@@ -568,9 +620,14 @@ int security_inode_listxattr(struct dentry *dentry)
int security_inode_removexattr(struct dentry *dentry, const char *name)
{
+ int ret;
+
if (unlikely(IS_PRIVATE(dentry->d_inode)))
return 0;
- return security_ops->inode_removexattr(dentry, name);
+ ret = security_ops->inode_removexattr(dentry, name);
+ if (ret)
+ return ret;
+ return evm_inode_removexattr(dentry, name);
}
int security_inode_need_killpriv(struct dentry *dentry)