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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>
43 lines
1,005 B
C
43 lines
1,005 B
C
/*
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* JFFS2 -- Journalling Flash File System, Version 2.
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*
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* Copyright © 2006 NEC Corporation
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*
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* Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
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*
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* For licensing information, see the file 'LICENCE' in this directory.
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*
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*/
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struct jffs2_acl_entry {
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jint16_t e_tag;
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jint16_t e_perm;
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jint32_t e_id;
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};
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struct jffs2_acl_entry_short {
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jint16_t e_tag;
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jint16_t e_perm;
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};
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struct jffs2_acl_header {
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jint32_t a_version;
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struct jffs2_acl_entry a_entries[];
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};
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#ifdef CONFIG_JFFS2_FS_POSIX_ACL
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struct posix_acl *jffs2_get_acl(struct inode *inode, int type);
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int jffs2_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 jffs2_init_acl_pre(struct inode *, struct inode *, umode_t *);
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extern int jffs2_init_acl_post(struct inode *);
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#else
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#define jffs2_get_acl (NULL)
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#define jffs2_set_acl (NULL)
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#define jffs2_init_acl_pre(dir_i,inode,mode) (0)
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#define jffs2_init_acl_post(inode) (0)
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#endif /* CONFIG_JFFS2_FS_POSIX_ACL */
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