From bc8ca5b92d54f6f005fa73ad546f02fca26ddd85 Mon Sep 17 00:00:00 2001 From: Mimi Zohar Date: Sun, 24 Jan 2016 10:07:32 -0500 Subject: vfs: define kernel_read_file_id enumeration To differentiate between the kernel_read_file() callers, this patch defines a new enumeration named kernel_read_file_id and includes the caller identifier as an argument. Subsequent patches define READING_KEXEC_IMAGE, READING_KEXEC_INITRAMFS, READING_FIRMWARE, READING_MODULE, and READING_POLICY. Changelog v3: - Replace the IMA specific enumeration with a generic one. Signed-off-by: Mimi Zohar Acked-by: Kees Cook Acked-by: Luis R. Rodriguez Cc: Al Viro --- include/linux/fs.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include/linux/fs.h') diff --git a/include/linux/fs.h b/include/linux/fs.h index 9a83d82b61ac..aa84bcb9c368 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2576,8 +2576,13 @@ static inline void i_readcount_inc(struct inode *inode) #endif extern int do_pipe_flags(int *, int); +enum kernel_read_file_id { + READING_MAX_ID +}; + extern int kernel_read(struct file *, loff_t, char *, unsigned long); -extern int kernel_read_file(struct file *, void **, loff_t *, loff_t); +extern int kernel_read_file(struct file *, void **, loff_t *, loff_t, + enum kernel_read_file_id); extern ssize_t kernel_write(struct file *, const char *, size_t, loff_t); extern ssize_t __kernel_write(struct file *, const char *, size_t, loff_t *); extern struct file * open_exec(const char *); -- cgit v1.2.3