2 * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
10 #include "../os/include/file.h"
12 #define OS_TYPE_FILE 1
14 #define OS_TYPE_SYMLINK 3
15 #define OS_TYPE_CHARDEV 4
16 #define OS_TYPE_BLOCKDEV 5
17 #define OS_TYPE_FIFO 6
18 #define OS_TYPE_SOCK 7
20 /* os_access() flags */
21 #define OS_ACC_F_OK 0 /* Test for existence. */
22 #define OS_ACC_X_OK 1 /* Test for execute permission. */
23 #define OS_ACC_W_OK 2 /* Test for write permission. */
24 #define OS_ACC_R_OK 4 /* Test for read permission. */
25 #define OS_ACC_RW_OK (OS_ACC_W_OK | OS_ACC_R_OK) /* Test for RW permission */
28 * types taken from stat_file() in hostfs_user.c
29 * (if they are wrong here, they are wrong there...).
32 int ust_major; /* device */
34 unsigned long long ust_ino; /* inode */
35 int ust_mode; /* protection */
36 int ust_nlink; /* number of hard links */
37 int ust_uid; /* user ID of owner */
38 int ust_gid; /* group ID of owner */
39 unsigned long long ust_size; /* total size, in bytes */
40 int ust_blksize; /* blocksize for filesystem I/O */
41 unsigned long long ust_blocks; /* number of blocks allocated */
42 unsigned long ust_atime; /* time of last access */
43 unsigned long ust_mtime; /* time of last modification */
44 unsigned long ust_ctime; /* time of last change */
52 unsigned int s : 1; /* O_SYNC */
53 unsigned int c : 1; /* O_CREAT */
54 unsigned int t : 1; /* O_TRUNC */
55 unsigned int a : 1; /* O_APPEND */
56 unsigned int e : 1; /* O_EXCL */
57 unsigned int cl : 1; /* FD_CLOEXEC */
58 unsigned int d : 1; /* O_DIRECT */
61 #define OPENFLAGS() ((struct openflags) { .r = 0, .w = 0, .s = 0, .c = 0, \
62 .t = 0, .a = 0, .e = 0, .cl = 0, \
65 static inline struct openflags of_read(struct openflags flags)
71 static inline struct openflags of_write(struct openflags flags)
77 static inline struct openflags of_rdwr(struct openflags flags)
79 return(of_read(of_write(flags)));
82 static inline struct openflags of_set_rw(struct openflags flags, int r, int w)
89 static inline struct openflags of_sync(struct openflags flags)
95 static inline struct openflags of_create(struct openflags flags)
101 static inline struct openflags of_trunc(struct openflags flags)
107 static inline struct openflags of_append(struct openflags flags)
113 static inline struct openflags of_excl(struct openflags flags)
119 static inline struct openflags of_cloexec(struct openflags flags)
125 static inline struct openflags of_direct(struct openflags flags)
131 extern int os_stat_file(const char *file_name, struct uml_stat *buf);
132 extern int os_lstat_file(const char *file_name, struct uml_stat *ubuf);
133 extern int os_stat_fd(const int fd, struct uml_stat *buf);
134 extern int os_access(const char *file, int mode);
135 extern int os_set_file_time(const char *file, unsigned long access,
137 extern int os_set_file_perms(const char *file, int mode);
138 extern int os_set_file_owner(const char *file, int owner, int group);
139 extern void os_print_error(int error, const char* str);
140 extern int os_get_exec_close(int fd, int *close_on_exec);
141 extern int os_set_exec_close(int fd, int close_on_exec);
142 extern int os_ioctl_generic(int fd, unsigned int cmd, unsigned long arg);
143 extern int os_window_size(int fd, int *rows, int *cols);
144 extern int os_new_tty_pgrp(int fd, int pid);
145 extern int os_get_ifname(int fd, char *namebuf);
146 extern int os_set_slip(int fd);
147 extern int os_set_owner(int fd, int pid);
148 extern int os_sigio_async(int master, int slave);
149 extern int os_mode_fd(int fd, int mode);
151 extern int os_seek_file(int fd, __u64 offset);
152 extern int os_open_file(char *file, struct openflags flags, int mode);
153 extern void *os_open_dir(char *dir, int *err_out);
154 extern int os_seek_dir(void *stream, unsigned long long pos);
155 extern int os_read_dir(void *stream, unsigned long long *ino_out,
157 extern int os_tell_dir(void *stream);
158 extern int os_close_dir(void *stream);
159 extern int os_remove_file(const char *file);
160 extern int os_move_file(const char *from, const char *to);
161 extern int os_truncate_file(const char *file, unsigned long long len);
162 extern int os_truncate_fd(int fd, unsigned long long len);
163 extern int os_read_file(int fd, void *buf, int len);
164 extern int os_write_file(int fd, const void *buf, int count);
165 extern int os_file_size(char *file, long long *size_out);
166 extern int os_fd_size(int fd, long long *size_out);
167 extern int os_file_modtime(char *file, unsigned long *modtime);
168 extern int os_pipe(int *fd, int stream, int close_on_exec);
169 extern int os_set_fd_async(int fd, int owner);
170 extern int os_clear_fd_async(int fd);
171 extern int os_set_fd_block(int fd, int blocking);
172 extern int os_accept_connection(int fd);
173 extern int os_create_unix_socket(char *file, int len, int close_on_exec);
174 extern int os_make_symlink(const char *to, const char *from);
175 extern int os_read_symlink(const char *file, char *buf, int size);
176 extern int os_link_file(const char *to, const char *from);
177 extern int os_make_dir(const char *dir, int mode);
178 extern int os_remove_dir(const char *dir);
179 extern int os_make_dev(const char *name, int mode, int major, int minor);
180 extern int os_shutdown_socket(int fd, int r, int w);
181 extern void os_close_file(int fd);
182 extern int os_rcv_fd(int fd, int *helper_pid_out);
183 extern int create_unix_socket(char *file, int len, int close_on_exec);
184 extern int os_connect_socket(char *name);
185 extern int os_file_type(char *file);
186 extern int os_file_mode(char *file, struct openflags *mode_out);
187 extern int os_lock_file(int fd, int excl);
189 extern unsigned long os_process_pc(int pid);
190 extern int os_process_parent(int pid);
191 extern void os_stop_process(int pid);
192 extern void os_kill_process(int pid, int reap_child);
193 extern void os_usr1_process(int pid);
194 extern int os_getpid(void);
196 extern int os_map_memory(void *virt, int fd, unsigned long long off,
197 unsigned long len, int r, int w, int x);
198 extern int os_protect_memory(void *addr, unsigned long len,
199 int r, int w, int x);
200 extern int os_unmap_memory(void *addr, int len);
201 extern void os_flush_stdout(void);
202 extern int os_stat_filesystem(char *path, long *bsize_out,
203 long long *blocks_out, long long *bfree_out,
204 long long *bavail_out, long long *files_out,
205 long long *ffree_out, void *fsid_out,
206 int fsid_size, long *namelen_out,
208 extern unsigned long long os_usecs(void);
213 * Overrides for Emacs so that we follow Linus's tabbing style.
214 * Emacs will notice this stuff at the end of the file and automatically
215 * adjust the settings for this buffer only. This must remain at the end
217 * ---------------------------------------------------------------------------
219 * c-file-style: "linux"