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549c729771
Extend some inode methods with an additional user namespace argument. A filesystem that is aware of idmapped mounts will receive the user namespace the mount has been marked with. This can be used for additional permission checking and also to enable filesystems to translate between uids and gids if they need to. We have implemented all relevant helpers in earlier patches. As requested we simply extend the exisiting inode method instead of introducing new ones. This is a little more code churn but it's mostly mechanical and doesnt't leave us with additional inode methods. Link: https://lore.kernel.org/r/20210121131959.646623-25-christian.brauner@ubuntu.com Cc: Christoph Hellwig <hch@lst.de> Cc: David Howells <dhowells@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2014 Anna Schumaker.
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*
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* NFSv3-specific filesystem definitions and declarations
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*/
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#ifndef __LINUX_FS_NFS_NFS3_FS_H
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#define __LINUX_FS_NFS_NFS3_FS_H
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/*
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* nfs3acl.c
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*/
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#ifdef CONFIG_NFS_V3_ACL
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extern struct posix_acl *nfs3_get_acl(struct inode *inode, int type);
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extern int nfs3_set_acl(struct user_namespace *mnt_userns, struct inode *inode,
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struct posix_acl *acl, int type);
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extern int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
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struct posix_acl *dfacl);
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extern ssize_t nfs3_listxattr(struct dentry *, char *, size_t);
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extern const struct xattr_handler *nfs3_xattr_handlers[];
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#else
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static inline int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
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struct posix_acl *dfacl)
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{
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return 0;
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}
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#define nfs3_listxattr NULL
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#endif /* CONFIG_NFS_V3_ACL */
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/* nfs3client.c */
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struct nfs_server *nfs3_create_server(struct fs_context *);
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struct nfs_server *nfs3_clone_server(struct nfs_server *, struct nfs_fh *,
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struct nfs_fattr *, rpc_authflavor_t);
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/* nfs3super.c */
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extern struct nfs_subversion nfs_v3;
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#endif /* __LINUX_FS_NFS_NFS3_FS_H */
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