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// See LICENSE for license details.
#ifndef __SYSCALL_H
#define __SYSCALL_H
#include "device.h"
#include "memif.h"
#include <vector>
#include <string>
class syscall_t;
typedef reg_t (syscall_t::*syscall_func_t)(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
class htif_t;
class memif_t;
class fds_t
{
public:
reg_t alloc(int fd);
void dealloc(reg_t fd);
int lookup(reg_t fd);
private:
std::vector<int> fds;
};
class syscall_t : public device_t
{
public:
syscall_t(htif_t*);
~syscall_t();
void set_chroot(const char* where);
private:
const char* identity() { return "syscall_proxy"; }
htif_t* htif;
memif_t* memif;
std::vector<syscall_func_t> table;
fds_t fds;
std::vector<reg_t> fds_index;
void handle_syscall(command_t cmd);
void dispatch(addr_t mm);
std::string chroot;
std::string do_chroot(const char* fn);
std::string undo_chroot(const char* fn);
reg_t sys_exit(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_openat(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_read(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_pread(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_write(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_pwrite(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_close(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_lseek(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_fstat(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_lstat(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_statx(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_fstatat(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_faccessat(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_fcntl(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_ftruncate(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_renameat(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_linkat(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_unlinkat(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_mkdirat(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_getcwd(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_getmainvars(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_chdir(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
reg_t sys_readlinkat(reg_t, reg_t, reg_t, reg_t, reg_t, reg_t, reg_t);
};
#endif
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