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/* SPDX-License-Identifier: MIT */
/* SPDX-FileCopyrightText: (c) Copyright 2024 Andrew Bower <andrew@bower.uk> */
#ifndef _ROOTFS_H
#define _ROOTFS_H
enum special_mount {
SPECIAL_PROC = 0,
SPECIAL_MAX
};
struct mount_info {
char *from;
char *to;
bool mounted;
int rc;
};
struct pivot_state {
int roots_dir_fd;
int old_root_fd;
int new_root_fd;
char *leaf_dir;
char *path;
};
extern struct mount_info *special_mounts[SPECIAL_MAX];
static inline struct pivot_state pivot_init(void) {
return (struct pivot_state) { -1, -1, -1, NULL, NULL };
}
extern bool create_new_root(const char *executable, struct pivot_state *pivot_state);
bool pivot_to_new_root(struct pivot_state *pivot_state);
extern void unmount_temp_rootfs(void);
extern void free_rootfs_data(void);
extern void pivot_tidy(struct pivot_state *pivot_state);
#endif
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