200 lines
6.3 KiB
C
200 lines
6.3 KiB
C
/*
|
|
* Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
|
|
* Licensed under the GPL
|
|
*/
|
|
|
|
#ifndef __OS_H__
|
|
#define __OS_H__
|
|
|
|
#include "asm/types.h"
|
|
#include "../os/include/file.h"
|
|
|
|
#define OS_TYPE_FILE 1
|
|
#define OS_TYPE_DIR 2
|
|
#define OS_TYPE_SYMLINK 3
|
|
#define OS_TYPE_CHARDEV 4
|
|
#define OS_TYPE_BLOCKDEV 5
|
|
#define OS_TYPE_FIFO 6
|
|
#define OS_TYPE_SOCK 7
|
|
|
|
/* os_access() flags */
|
|
#define OS_ACC_F_OK 0 /* Test for existence. */
|
|
#define OS_ACC_X_OK 1 /* Test for execute permission. */
|
|
#define OS_ACC_W_OK 2 /* Test for write permission. */
|
|
#define OS_ACC_R_OK 4 /* Test for read permission. */
|
|
#define OS_ACC_RW_OK (OS_ACC_W_OK | OS_ACC_R_OK) /* Test for RW permission */
|
|
|
|
/*
|
|
* types taken from stat_file() in hostfs_user.c
|
|
* (if they are wrong here, they are wrong there...).
|
|
*/
|
|
struct uml_stat {
|
|
int ust_dev; /* device */
|
|
unsigned long long ust_ino; /* inode */
|
|
int ust_mode; /* protection */
|
|
int ust_nlink; /* number of hard links */
|
|
int ust_uid; /* user ID of owner */
|
|
int ust_gid; /* group ID of owner */
|
|
unsigned long long ust_size; /* total size, in bytes */
|
|
int ust_blksize; /* blocksize for filesystem I/O */
|
|
unsigned long long ust_blocks; /* number of blocks allocated */
|
|
unsigned long ust_atime; /* time of last access */
|
|
unsigned long ust_mtime; /* time of last modification */
|
|
unsigned long ust_ctime; /* time of last change */
|
|
};
|
|
|
|
struct openflags {
|
|
unsigned int r : 1;
|
|
unsigned int w : 1;
|
|
unsigned int s : 1; /* O_SYNC */
|
|
unsigned int c : 1; /* O_CREAT */
|
|
unsigned int t : 1; /* O_TRUNC */
|
|
unsigned int a : 1; /* O_APPEND */
|
|
unsigned int e : 1; /* O_EXCL */
|
|
unsigned int cl : 1; /* FD_CLOEXEC */
|
|
};
|
|
|
|
#define OPENFLAGS() ((struct openflags) { .r = 0, .w = 0, .s = 0, .c = 0, \
|
|
.t = 0, .a = 0, .e = 0, .cl = 0 })
|
|
|
|
static inline struct openflags of_read(struct openflags flags)
|
|
{
|
|
flags.r = 1;
|
|
return(flags);
|
|
}
|
|
|
|
static inline struct openflags of_write(struct openflags flags)
|
|
{
|
|
flags.w = 1;
|
|
return(flags);
|
|
}
|
|
|
|
static inline struct openflags of_rdwr(struct openflags flags)
|
|
{
|
|
return(of_read(of_write(flags)));
|
|
}
|
|
|
|
static inline struct openflags of_set_rw(struct openflags flags, int r, int w)
|
|
{
|
|
flags.r = r;
|
|
flags.w = w;
|
|
return(flags);
|
|
}
|
|
|
|
static inline struct openflags of_sync(struct openflags flags)
|
|
{
|
|
flags.s = 1;
|
|
return(flags);
|
|
}
|
|
|
|
static inline struct openflags of_create(struct openflags flags)
|
|
{
|
|
flags.c = 1;
|
|
return(flags);
|
|
}
|
|
|
|
static inline struct openflags of_trunc(struct openflags flags)
|
|
{
|
|
flags.t = 1;
|
|
return(flags);
|
|
}
|
|
|
|
static inline struct openflags of_append(struct openflags flags)
|
|
{
|
|
flags.a = 1;
|
|
return(flags);
|
|
}
|
|
|
|
static inline struct openflags of_excl(struct openflags flags)
|
|
{
|
|
flags.e = 1;
|
|
return(flags);
|
|
}
|
|
|
|
static inline struct openflags of_cloexec(struct openflags flags)
|
|
{
|
|
flags.cl = 1;
|
|
return(flags);
|
|
}
|
|
|
|
extern int os_stat_file(const char *file_name, struct uml_stat *buf);
|
|
extern int os_stat_fd(const int fd, struct uml_stat *buf);
|
|
extern int os_access(const char *file, int mode);
|
|
extern void os_print_error(int error, const char* str);
|
|
extern int os_get_exec_close(int fd, int *close_on_exec);
|
|
extern int os_set_exec_close(int fd, int close_on_exec);
|
|
extern int os_ioctl_generic(int fd, unsigned int cmd, unsigned long arg);
|
|
extern int os_window_size(int fd, int *rows, int *cols);
|
|
extern int os_new_tty_pgrp(int fd, int pid);
|
|
extern int os_get_ifname(int fd, char *namebuf);
|
|
extern int os_set_slip(int fd);
|
|
extern int os_set_owner(int fd, int pid);
|
|
extern int os_sigio_async(int master, int slave);
|
|
extern int os_mode_fd(int fd, int mode);
|
|
|
|
extern int os_seek_file(int fd, __u64 offset);
|
|
extern int os_open_file(char *file, struct openflags flags, int mode);
|
|
extern int os_read_file(int fd, void *buf, int len);
|
|
extern int os_write_file(int fd, const void *buf, int count);
|
|
extern int os_file_size(char *file, unsigned long long *size_out);
|
|
extern int os_file_modtime(char *file, unsigned long *modtime);
|
|
extern int os_pipe(int *fd, int stream, int close_on_exec);
|
|
extern int os_set_fd_async(int fd, int owner);
|
|
extern int os_clear_fd_async(int fd);
|
|
extern int os_set_fd_block(int fd, int blocking);
|
|
extern int os_accept_connection(int fd);
|
|
extern int os_create_unix_socket(char *file, int len, int close_on_exec);
|
|
extern int os_shutdown_socket(int fd, int r, int w);
|
|
extern void os_close_file(int fd);
|
|
extern int os_rcv_fd(int fd, int *helper_pid_out);
|
|
extern int create_unix_socket(char *file, int len, int close_on_exec);
|
|
extern int os_connect_socket(char *name);
|
|
extern int os_file_type(char *file);
|
|
extern int os_file_mode(char *file, struct openflags *mode_out);
|
|
extern int os_lock_file(int fd, int excl);
|
|
|
|
/* start_up.c */
|
|
extern void os_early_checks(void);
|
|
extern int can_do_skas(void);
|
|
|
|
/* process.c */
|
|
extern unsigned long os_process_pc(int pid);
|
|
extern int os_process_parent(int pid);
|
|
extern void os_stop_process(int pid);
|
|
extern void os_kill_process(int pid, int reap_child);
|
|
extern void os_kill_ptraced_process(int pid, int reap_child);
|
|
extern void os_usr1_process(int pid);
|
|
extern int os_getpid(void);
|
|
extern int os_getpgrp(void);
|
|
extern void init_new_thread_stack(void *sig_stack, void (*usr1_handler)(int));
|
|
extern void init_new_thread_signals(int altstack);
|
|
extern int run_kernel_thread(int (*fn)(void *), void *arg, void **jmp_ptr);
|
|
|
|
extern int os_map_memory(void *virt, int fd, unsigned long long off,
|
|
unsigned long len, int r, int w, int x);
|
|
extern int os_protect_memory(void *addr, unsigned long len,
|
|
int r, int w, int x);
|
|
extern int os_unmap_memory(void *addr, int len);
|
|
extern void os_flush_stdout(void);
|
|
extern unsigned long long os_usecs(void);
|
|
|
|
/* tt.c
|
|
* for tt mode only (will be deleted in future...)
|
|
*/
|
|
extern void forward_pending_sigio(int target);
|
|
extern int start_fork_tramp(void *arg, unsigned long temp_stack,
|
|
int clone_flags, int (*tramp)(void *));
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Overrides for Emacs so that we follow Linus's tabbing style.
|
|
* Emacs will notice this stuff at the end of the file and automatically
|
|
* adjust the settings for this buffer only. This must remain at the end
|
|
* of the file.
|
|
* ---------------------------------------------------------------------------
|
|
* Local variables:
|
|
* c-file-style: "linux"
|
|
* End:
|
|
*/
|