764a5c6b1f
Change the list operation to only return whether or not an attribute should be listed. Copying the attribute names into the buffer is moved to the callers. Since the result only depends on the dentry and not on the attribute name, we do not pass the attribute name to list operations. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
/*
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* linux/fs/ext4/xattr_security.c
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* Handler for storing security labels as extended attributes.
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*/
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#include <linux/string.h>
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#include <linux/fs.h>
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#include <linux/security.h>
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#include <linux/slab.h>
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#include "ext4_jbd2.h"
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#include "ext4.h"
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#include "xattr.h"
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static int
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ext4_xattr_security_get(const struct xattr_handler *handler,
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struct dentry *dentry, const char *name,
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void *buffer, size_t size)
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{
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return ext4_xattr_get(d_inode(dentry), EXT4_XATTR_INDEX_SECURITY,
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name, buffer, size);
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}
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static int
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ext4_xattr_security_set(const struct xattr_handler *handler,
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struct dentry *dentry, const char *name,
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const void *value, size_t size, int flags)
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{
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return ext4_xattr_set(d_inode(dentry), EXT4_XATTR_INDEX_SECURITY,
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name, value, size, flags);
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}
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static int
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ext4_initxattrs(struct inode *inode, const struct xattr *xattr_array,
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void *fs_info)
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{
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const struct xattr *xattr;
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handle_t *handle = fs_info;
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int err = 0;
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for (xattr = xattr_array; xattr->name != NULL; xattr++) {
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err = ext4_xattr_set_handle(handle, inode,
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EXT4_XATTR_INDEX_SECURITY,
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xattr->name, xattr->value,
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xattr->value_len, 0);
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if (err < 0)
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break;
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}
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return err;
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}
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int
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ext4_init_security(handle_t *handle, struct inode *inode, struct inode *dir,
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const struct qstr *qstr)
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{
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return security_inode_init_security(inode, dir, qstr,
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&ext4_initxattrs, handle);
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}
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const struct xattr_handler ext4_xattr_security_handler = {
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.prefix = XATTR_SECURITY_PREFIX,
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.get = ext4_xattr_security_get,
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.set = ext4_xattr_security_set,
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};
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