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https://gitee.com/openharmony/third_party_f2fs-tools
synced 2025-03-09 05:14:53 +00:00
tools: add f2fs_io
This is initial commit to support shutdown ioctl. Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
parent
3f6c613444
commit
bbff9a6d04
@ -209,6 +209,7 @@ AC_CONFIG_FILES([
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fsck/Makefile
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tools/Makefile
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tools/sg_write_buffer/Makefile
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tools/f2fs_io/Makefile
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])
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# export library version info for mkfs/libf2fs_format_la
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@ -14,4 +14,4 @@ f2fscrypt_LDFLAGS = -luuid
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dist_man_MANS = f2fscrypt.8
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endif
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SUBDIRS = sg_write_buffer
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SUBDIRS = sg_write_buffer f2fs_io
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15
tools/f2fs_io/Android.bp
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15
tools/f2fs_io/Android.bp
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@ -0,0 +1,15 @@
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cc_defaults {
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name: "f2fs-io-defaults",
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cflags: [
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"-Wno-unused-function"
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],
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}
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cc_binary {
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name: "f2fs_io",
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defaults: [ "f2fs-io-defaults" ],
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srcs: [
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"f2fs_io.c",
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],
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product_specific: true,
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}
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8
tools/f2fs_io/Makefile.am
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8
tools/f2fs_io/Makefile.am
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@ -0,0 +1,8 @@
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## Makefile.am
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if LINUX
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AM_CPPFLAGS = -I./include
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AM_CFLAGS = -Wall
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sbin_PROGRAMS = f2fs_io
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f2fs_io_SOURCES = f2fs_io.c
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endif
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171
tools/f2fs_io/f2fs_io.c
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171
tools/f2fs_io/f2fs_io.c
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@ -0,0 +1,171 @@
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/*
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* f2fs_io.c - f2fs ioctl utility
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*
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* Author: Jaegeuk Kim <jaegeuk@kernel.org>
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*
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* Copied portion of the code from ../f2fscrypt.c
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*/
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#include <stdio.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <signal.h>
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#include <termios.h>
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "f2fs_io.h"
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struct cmd_desc {
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const char *cmd_name;
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void (*cmd_func)(int, char **, const struct cmd_desc *);
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const char *cmd_desc;
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const char *cmd_help;
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int cmd_flags;
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};
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#define shutdown_desc "shutdown filesystem"
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#define shutdown_help \
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"f2fs_io shutdown [level] [dir]\n\n" \
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"Freeze and stop all IOs given mount point\n" \
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"level can be\n" \
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" 0 : going down with full sync\n" \
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" 1 : going down with checkpoint only\n" \
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" 2 : going down with no sync\n" \
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" 3 : going down with metadata flush\n" \
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" 4 : going down with fsck mark\n"
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static void do_shutdown(int argc, char **argv, const struct cmd_desc *cmd)
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{
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u32 flag;
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int ret, fd;
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if (argc != 3) {
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fputs("Excess arguments\n\n", stderr);
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fputs(cmd->cmd_help, stderr);
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exit(1);
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}
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flag = atoi(argv[1]);
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if (flag >= F2FS_GOING_DOWN_MAX) {
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fputs("Wrong level\n\n", stderr);
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fputs(cmd->cmd_help, stderr);
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exit(1);
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}
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fd = open(argv[2], O_RDONLY);
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if (fd == -1) {
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fputs("Open failed\n\n", stderr);
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fputs(cmd->cmd_help, stderr);
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exit(1);
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}
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ret = ioctl(fd, F2FS_IOC_SHUTDOWN, &flag);
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if (ret < 0) {
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perror("F2FS_IOC_SHUTDOWN");
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exit(1);
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}
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printf("Shutdown %s with level=%d\n", argv[2], flag);
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exit(0);
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}
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#define CMD_HIDDEN 0x0001
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#define CMD(name) { #name, do_##name, name##_desc, name##_help, 0 }
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#define _CMD(name) { #name, do_##name, NULL, NULL, CMD_HIDDEN }
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static void do_help(int argc, char **argv, const struct cmd_desc *cmd);
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const struct cmd_desc cmd_list[] = {
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_CMD(help),
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CMD(shutdown),
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{ NULL, NULL, NULL, NULL, 0 }
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};
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static void do_help(int argc, char **argv, const struct cmd_desc *UNUSED(cmd))
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{
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const struct cmd_desc *p;
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if (argc > 1) {
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for (p = cmd_list; p->cmd_name; p++) {
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if (p->cmd_flags & CMD_HIDDEN)
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continue;
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if (strcmp(p->cmd_name, argv[1]) == 0) {
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putc('\n', stdout);
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fputs("USAGE:\n ", stdout);
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fputs(p->cmd_help, stdout);
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exit(0);
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}
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}
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printf("Unknown command: %s\n\n", argv[1]);
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}
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fputs("Available commands:\n", stdout);
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for (p = cmd_list; p->cmd_name; p++) {
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if (p->cmd_flags & CMD_HIDDEN)
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continue;
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printf(" %-20s %s\n", p->cmd_name, p->cmd_desc);
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}
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printf("\nTo get more information on a command, "
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"type 'f2fs_io help cmd'\n");
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exit(0);
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}
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static void die_signal_handler(int UNUSED(signum), siginfo_t *UNUSED(siginfo),
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void *UNUSED(context))
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{
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exit(-1);
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}
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static void sigcatcher_setup(void)
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{
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struct sigaction sa;
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memset(&sa, 0, sizeof(struct sigaction));
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sa.sa_sigaction = die_signal_handler;
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sa.sa_flags = SA_SIGINFO;
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sigaction(SIGHUP, &sa, 0);
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sigaction(SIGINT, &sa, 0);
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sigaction(SIGQUIT, &sa, 0);
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sigaction(SIGFPE, &sa, 0);
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sigaction(SIGILL, &sa, 0);
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sigaction(SIGBUS, &sa, 0);
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sigaction(SIGSEGV, &sa, 0);
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sigaction(SIGABRT, &sa, 0);
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sigaction(SIGPIPE, &sa, 0);
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sigaction(SIGALRM, &sa, 0);
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sigaction(SIGTERM, &sa, 0);
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sigaction(SIGUSR1, &sa, 0);
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sigaction(SIGUSR2, &sa, 0);
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sigaction(SIGPOLL, &sa, 0);
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sigaction(SIGPROF, &sa, 0);
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sigaction(SIGSYS, &sa, 0);
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sigaction(SIGTRAP, &sa, 0);
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sigaction(SIGVTALRM, &sa, 0);
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sigaction(SIGXCPU, &sa, 0);
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sigaction(SIGXFSZ, &sa, 0);
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}
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int main(int argc, char **argv)
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{
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const struct cmd_desc *cmd;
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if (argc < 2)
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do_help(argc, argv, cmd_list);
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sigcatcher_setup();
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for (cmd = cmd_list; cmd->cmd_name; cmd++) {
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if (strcmp(cmd->cmd_name, argv[1]) == 0) {
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cmd->cmd_func(argc - 1, argv + 1, cmd);
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exit(0);
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}
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}
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printf("Unknown command: %s\n\n", argv[1]);
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do_help(1, argv, cmd_list);
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return 0;
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}
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109
tools/f2fs_io/f2fs_io.h
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109
tools/f2fs_io/f2fs_io.h
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@ -0,0 +1,109 @@
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/*
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* ioctl.h - f2fs ioctl header
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*
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* Authors: Jaegeuk Kim <jaegeuk@kernel.org>
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*/
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#ifdef HAVE_LINUX_TYPES_H
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#include <linux/types.h>
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#endif
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#include <sys/types.h>
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#ifdef UNUSED
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#elif defined(__GNUC__)
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# define UNUSED(x) UNUSED_ ## x __attribute__((unused))
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#elif defined(__LCLINT__)
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# define UNUSED(x) x
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#else
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# define UNUSED(x) x
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#endif
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typedef u_int64_t u64;
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typedef u_int32_t u32;
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typedef u_int16_t u16;
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typedef u_int8_t u8;
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#ifndef HAVE_LINUX_TYPES_H
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typedef u8 __u8;
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typedef u16 __u16;
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typedef u32 __u32;
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typedef u16 __le16;
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typedef u32 __le32;
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typedef u16 __be16;
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typedef u32 __be32;
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#endif
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#define F2FS_IOCTL_MAGIC 0xf5
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#define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
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#define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
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#define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
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#define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
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#define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
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#define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
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#define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
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#define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
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struct f2fs_defragment)
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#define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
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struct f2fs_move_range)
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#define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
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struct f2fs_flush_device)
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#define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
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struct f2fs_gc_range)
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#define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
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#define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
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#define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
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#define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
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#define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
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#define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
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#define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
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/*
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* should be same as XFS_IOC_GOINGDOWN.
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* Flags for going down operation used by FS_IOC_GOINGDOWN
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*/
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#define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
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#define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
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#define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
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#define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
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#define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
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#define F2FS_GOING_DOWN_NEED_FSCK 0x4 /* going down to trigger fsck */
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#define F2FS_GOING_DOWN_MAX 0x5
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#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
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/*
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* ioctl commands in 32 bit emulation
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*/
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#define F2FS_IOC32_GETFLAGS FS_IOC32_GETFLAGS
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#define F2FS_IOC32_SETFLAGS FS_IOC32_SETFLAGS
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#define F2FS_IOC32_GETVERSION FS_IOC32_GETVERSION
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#endif
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#define F2FS_IOC_FSGETXATTR FS_IOC_FSGETXATTR
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#define F2FS_IOC_FSSETXATTR FS_IOC_FSSETXATTR
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struct f2fs_gc_range {
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u32 sync;
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u64 start;
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u64 len;
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};
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struct f2fs_defragment {
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u64 start;
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u64 len;
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};
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struct f2fs_move_range {
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u32 dst_fd; /* destination fd */
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u64 pos_in; /* start position in src_fd */
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u64 pos_out; /* start position in dst_fd */
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u64 len; /* size to move */
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};
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struct f2fs_flush_device {
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u32 dev_num; /* device number to flush */
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u32 segments; /* # of segments to flush */
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};
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