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46 lines
1.2 KiB
46 lines
1.2 KiB
// SPDX-License-Identifier: GPL-2.0 |
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#include "reiserfs.h" |
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#include <linux/capability.h> |
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#include <linux/errno.h> |
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#include <linux/fs.h> |
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#include <linux/pagemap.h> |
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#include <linux/xattr.h> |
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#include "xattr.h" |
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#include <linux/uaccess.h> |
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static int |
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trusted_get(const struct xattr_handler *handler, struct dentry *unused, |
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struct inode *inode, const char *name, void *buffer, size_t size) |
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{ |
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if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode)) |
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return -EPERM; |
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return reiserfs_xattr_get(inode, xattr_full_name(handler, name), |
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buffer, size); |
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} |
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static int |
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trusted_set(const struct xattr_handler *handler, |
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struct user_namespace *mnt_userns, struct dentry *unused, |
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struct inode *inode, const char *name, const void *buffer, |
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size_t size, int flags) |
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{ |
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if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode)) |
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return -EPERM; |
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return reiserfs_xattr_set(inode, |
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xattr_full_name(handler, name), |
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buffer, size, flags); |
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} |
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static bool trusted_list(struct dentry *dentry) |
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{ |
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return capable(CAP_SYS_ADMIN) && !IS_PRIVATE(d_inode(dentry)); |
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} |
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const struct xattr_handler reiserfs_xattr_trusted_handler = { |
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.prefix = XATTR_TRUSTED_PREFIX, |
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.get = trusted_get, |
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.set = trusted_set, |
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.list = trusted_list, |
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};
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