mirror of https://gitee.com/openkylin/linux.git
[PATCH] remove ext3 xattr permission checks
) From: Christoph Hellwig <hch@lst.de> remove checks now in the VFS Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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267fd05791
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c37ef806a3
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@ -946,10 +946,6 @@ ext3_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index,
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};
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int error;
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if (IS_RDONLY(inode))
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return -EROFS;
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if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
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return -EPERM;
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if (!name)
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return -EINVAL;
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if (strlen(name) > 255)
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@ -39,8 +39,6 @@ ext3_xattr_trusted_get(struct inode *inode, const char *name,
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{
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if (strcmp(name, "") == 0)
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return -EINVAL;
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if (!capable(CAP_SYS_ADMIN))
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return -EPERM;
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return ext3_xattr_get(inode, EXT3_XATTR_INDEX_TRUSTED, name,
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buffer, size);
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}
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@ -51,8 +49,6 @@ ext3_xattr_trusted_set(struct inode *inode, const char *name,
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{
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if (strcmp(name, "") == 0)
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return -EINVAL;
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if (!capable(CAP_SYS_ADMIN))
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return -EPERM;
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return ext3_xattr_set(inode, EXT3_XATTR_INDEX_TRUSTED, name,
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value, size, flags);
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}
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@ -37,16 +37,10 @@ static int
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ext3_xattr_user_get(struct inode *inode, const char *name,
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void *buffer, size_t size)
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{
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int error;
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if (strcmp(name, "") == 0)
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return -EINVAL;
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if (!test_opt(inode->i_sb, XATTR_USER))
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return -EOPNOTSUPP;
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error = permission(inode, MAY_READ, NULL);
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if (error)
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return error;
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return ext3_xattr_get(inode, EXT3_XATTR_INDEX_USER, name, buffer, size);
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}
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@ -54,19 +48,10 @@ static int
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ext3_xattr_user_set(struct inode *inode, const char *name,
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const void *value, size_t size, int flags)
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{
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int error;
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if (strcmp(name, "") == 0)
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return -EINVAL;
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if (!test_opt(inode->i_sb, XATTR_USER))
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return -EOPNOTSUPP;
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if ( !S_ISREG(inode->i_mode) &&
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(!S_ISDIR(inode->i_mode) || inode->i_mode & S_ISVTX))
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return -EPERM;
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error = permission(inode, MAY_WRITE, NULL);
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if (error)
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return error;
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return ext3_xattr_set(inode, EXT3_XATTR_INDEX_USER, name,
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value, size, flags);
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}
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