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| author | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2011-03-09 14:39:18 -0500 |
|---|---|---|
| committer | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2011-07-18 12:29:43 -0400 |
| commit | c7b87de23b6fd5dfbe5c36601f29d6c515056343 (patch) | |
| tree | ca33b4b1b11a03ce1c1975a2b272a1ed2bd0d36d | |
| parent | 3e1be52d6c6b21d9080dd886c0e609e009831562 (diff) | |
| download | lwn-c7b87de23b6fd5dfbe5c36601f29d6c515056343.tar.gz lwn-c7b87de23b6fd5dfbe5c36601f29d6c515056343.zip | |
evm: evm_inode_post_removexattr
When an EVM protected extended attribute is removed, update 'security.evm'.
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Acked-by: Serge Hallyn <serge.hallyn@ubuntu.com>
| -rw-r--r-- | fs/xattr.c | 5 | ||||
| -rw-r--r-- | include/linux/evm.h | 9 |
2 files changed, 13 insertions, 1 deletions
diff --git a/fs/xattr.c b/fs/xattr.c index 851808c92b30..67583de8218c 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -14,6 +14,7 @@ #include <linux/mount.h> #include <linux/namei.h> #include <linux/security.h> +#include <linux/evm.h> #include <linux/syscalls.h> #include <linux/module.h> #include <linux/fsnotify.h> @@ -301,8 +302,10 @@ vfs_removexattr(struct dentry *dentry, const char *name) error = inode->i_op->removexattr(dentry, name); mutex_unlock(&inode->i_mutex); - if (!error) + if (!error) { fsnotify_xattr(dentry); + evm_inode_post_removexattr(dentry, name); + } return error; } EXPORT_SYMBOL_GPL(vfs_removexattr); diff --git a/include/linux/evm.h b/include/linux/evm.h index 8b4e9e3b395e..a730782da563 100644 --- a/include/linux/evm.h +++ b/include/linux/evm.h @@ -22,6 +22,8 @@ extern void evm_inode_post_setxattr(struct dentry *dentry, const void *xattr_value, size_t xattr_value_len); extern int evm_inode_removexattr(struct dentry *dentry, const char *xattr_name); +extern void evm_inode_post_removexattr(struct dentry *dentry, + const char *xattr_name); #else #ifdef CONFIG_INTEGRITY static inline enum integrity_status evm_verifyxattr(struct dentry *dentry, @@ -52,5 +54,12 @@ static inline int evm_inode_removexattr(struct dentry *dentry, { return 0; } + +static inline void evm_inode_post_removexattr(struct dentry *dentry, + const char *xattr_name) +{ + return; +} + #endif /* CONFIG_EVM_H */ #endif /* LINUX_EVM_H */ |