int main(int argc, char *argv[])
{
if (getpid() == 1)
{
setenv("PATH", "/bin:/usr/local/bin:/usr/bin:/mnt/bin", 1);
setenv("HOME", "/root", 1);
struct sigaction sa;
sa.sa_sigaction = on_signal;
sa.sa_flags = SA_SIGINFO;
if (sigaction(SIGINT, &sa, NULL) != 0)
{
perror("sigaction SIGINT");
return 1;
};
if (sigaction(SIGCHLD, &sa, NULL) != 0)
{
perror("sigaction SIGCHLD");
return 1;
};
if (sigaction(SIGTERM, &sa, NULL) != 0)
{
perror("sigaction SIGTERM");
return 1;
};
if (sigaction(SIGHUP, &sa, NULL) != 0) // SIGHUP is sent when the power button is pressed
{
perror("sigaction SIGHUP");
return 1;
};
loadmods();
printf("init: initializing partitions...\n");
init_parts();
printf("init: loading configuration file /initrd/startup.conf...\n");
if (load_config("/initrd/startup.conf") == -1)
{
printf("init: attempting startup with fallback configuration file /initrd/startup-fallback.conf...\n");
if (load_config("/initrd/startup-fallback.conf") == -1)
{
printf("init: failed to start up\n");
};
};
/*
if (_glidix_mount("isofs", "/dev/sdb", "/mnt/", 0) != 0)
{
perror("init: mount failed");
};
close(open("/dev/sda", O_RDONLY));
if (_glidix_mount("gxfs", "/dev/sda0", "/", 0) != 0)
{
perror("init: mount gxfs on /");
};
*/
/*
if (fork() == 0)
{
setenv("PATH", "/bin:/usr/local/bin:/usr/bin:/mnt/bin", 1);
setenv("HOME", "/root", 1);
if (execl("/mnt/bin/sh", "sh", NULL) != 0)
{
perror("exec");
exit(1);
};
};
*/
while (1)
{
pause();
if (shouldHalt)
{
sa.sa_handler = SIG_DFL;
if (sigaction(SIGCHLD, &sa, NULL) != 0)
{
perror("sigaction SIGCHLD");
return 1;
};
int fd = open("/etc/down-action", O_RDONLY);
char downAction[256];
memset(downAction, 0, 256);
read(fd, downAction, 16);
close(fd);
int action = _GLIDIX_DOWN_HALT;
if (strcmp(downAction, "poweroff") == 0)
{
action = _GLIDIX_DOWN_POWEROFF;
}
else if (strcmp(downAction, "reboot") == 0)
{
action = _GLIDIX_DOWN_REBOOT;
};
_glidix_down(action);
}
else if ((shouldRunPoweroff) && (!ranPoweroff))
{
ranPoweroff = 1;
if (fork() == 0)
{
if (execl("/usr/bin/halt", "poweroff", NULL) == -1)
{
perror("exec poweroff");
fprintf(stderr, "forcing shutdown\n");
kill(1, SIGTERM);
exit(1);
};
};
};
};
}
else
{
fprintf(stderr, "%s: not allowed to execute with pid other than 1!\n", argv[0]);
return 1;
};
return 0;
};
int main(int argc, char *argv[])
{
if (getpid() == 1)
{
if (open("/dev/tty0", O_RDWR) != 0) return 1;
if (dup(0) != 1) return 1;
if (dup(1) != 2) return 1;
setenv("PATH", "/usr/local/bin:/usr/bin:/bin", 1);
setenv("HOME", "/root", 1);
setenv("LD_LIBRARY_PATH", "/usr/local/lib:/usr/lib:/lib", 1);
struct sigaction sa;
memset(&sa, 0, sizeof(struct sigaction));
sa.sa_sigaction = on_signal;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_SIGINFO;
if (sigaction(SIGINT, &sa, NULL) != 0)
{
perror("sigaction SIGINT");
return 1;
};
if (sigaction(SIGCHLD, &sa, NULL) != 0)
{
perror("sigaction SIGCHLD");
return 1;
};
if (sigaction(SIGTERM, &sa, NULL) != 0)
{
perror("sigaction SIGTERM");
return 1;
};
if (sigaction(SIGHUP, &sa, NULL) != 0) // SIGHUP is sent when the power button is pressed
{
perror("sigaction SIGHUP");
return 1;
};
if (mkdir("/sem", 01777) != 0)
{
perror("mkdir /run/sem");
return 1;
};
loadmods();
printf("init: initializing partitions...\n");
init_parts();
printf("init: looking for root filesystem...\n");
if (try_mount_root() != 0)
{
printf("init: failed to find the root filesystem!\n");
return 1;
};
printf("init: setting up second-level filesystem...\n");
if (mount("bind", "/dev", "/rootfs/dev", 0, NULL, 0) != 0)
{
perror("init: bind /dev");
return 1;
};
if (mount("bind", "/proc", "/rootfs/proc", 0, NULL, 0) != 0)
{
perror("init: bind /proc");
return 1;
};
if (mount("bind", "/initrd", "/rootfs/initrd", 0, NULL, 0) != 0)
{
perror("init: bind /initrd");
return 1;
};
if (mount("bind", "/run", "/rootfs/run", 0, NULL, 0) != 0)
{
perror("init: bind /run");
return 1;
};
if (mount("bind", "/run", "/rootfs/var/run", 0, NULL, 0) != 0)
{
perror("init: bind /var/run");
return 1;
};
printf("init: setting up fsinfo...\n");
int fd = open("/run/fsinfo", O_WRONLY | O_CREAT | O_EXCL, 0644);
if (fd == -1)
{
perror("init: open /run/fsinfo");
return 1;
};
struct __fsinfo_record record;
memset(&record, 0, sizeof(struct __fsinfo_record));
strcpy(record.__image, rootImage);
strcpy(record.__mntpoint, "/");
write(fd, &record, sizeof(struct __fsinfo_record));
strcpy(record.__image, "none");
strcpy(record.__mntpoint, "/dev");
write(fd, &record, sizeof(struct __fsinfo_record));
strcpy(record.__mntpoint, "/proc");
write(fd, &record, sizeof(struct __fsinfo_record));
strcpy(record.__mntpoint, "/initrd");
write(fd, &record, sizeof(struct __fsinfo_record));
strcpy(record.__mntpoint, "/run");
write(fd, &record, sizeof(struct __fsinfo_record));
strcpy(record.__mntpoint, "/var/run");
write(fd, &record, sizeof(struct __fsinfo_record));
close(fd);
printf("init: executing startup script...\n");
if (fork() == 0)
{
if (chdir("/rootfs") != 0)
{
fprintf(stderr, "init: cannot switch to /rootfs: %s\n", strerror(errno));
_exit(1);
};
if (chroot("/rootfs") != 0)
{
fprintf(stderr, "init: failed to set root directory to /rootfs: %s\n", strerror(errno));
_exit(1);
};
execl("/bin/sh", "/bin/sh", "/etc/init/startup.sh", NULL);
perror("init: exec");
_exit(1);
};
while (1)
{
pause();
if (shouldHalt)
{
tcsetpgrp(0, getpgrp());
printf("init: received shutdown request\n");
int fd = open("/run/down-action", O_RDONLY);
char downAction[256];
memset(downAction, 0, 256);
downAction[read(fd, downAction, 16)] = 0;
close(fd);
int action = _GLIDIX_DOWN_HALT;
if (strcmp(downAction, "poweroff") == 0)
{
action = _GLIDIX_DOWN_POWEROFF;
}
else if (strcmp(downAction, "reboot") == 0)
{
action = _GLIDIX_DOWN_REBOOT;
};
shutdownSystem(action);
}
else if ((shouldRunPoweroff) && (!ranPoweroff))
{
ranPoweroff = 1;
if (fork() == 0)
{
if (execl("/usr/bin/halt", "poweroff", NULL) == -1)
{
perror("exec poweroff");
fprintf(stderr, "forcing shutdown\n");
kill(1, SIGTERM);
exit(1);
};
};
};
};
}
else
{
fprintf(stderr, "%s: not allowed to execute with pid other than 1!\n", argv[0]);
return 1;
};
return 0;
};
