static int vz_env_create_data_ioctl(vps_handler *h,
struct vzctl_env_create_data *data)
{
int errcode;
int retry = 0;
do {
if (retry)
sleep(1);
errcode = ioctl(h->vzfd, VZCTL_ENV_CREATE_DATA, data);
} while (errcode < 0 && errno == EBUSY && retry++ < ENVRETRY);
if (errcode >= 0) {
/* Clear supplementary group IDs */
setgroups(0, NULL);
#ifdef __x86_64__
/* Set personality PER_LINUX32 for i386 based CTs */
set_personality32();
#endif
}
return errcode;
}
int vz_env_create_ioctl(int vzfd, envid_t veid, int flags)
{
struct vzctl_env_create env_create;
int errcode;
int retry = 0;
memset(&env_create, 0, sizeof(env_create));
env_create.veid = veid;
env_create.flags = flags;
do {
if (retry)
sleep(1);
errcode = ioctl(vzfd, VZCTL_ENV_CREATE, &env_create);
} while (errcode < 0 && errno == EBUSY && retry++ < ENVRETRY);
if (errcode >= 0 && (flags & VE_ENTER)) {
/* Clear supplementary group IDs */
setgroups(0, NULL);
#ifdef __x86_64__
/* Set personality PER_LINUX32 for i386 based CTs */
set_personality32();
#endif
}
return errcode;
}
int exec_container_init(struct arg_start *arg,
struct env_create_param3 *create_param)
{
int fd, ret;
char *argv[] = {"init", "-z", " ", NULL};
char *envp[] = {"HOME=/", "TERM=linux", NULL};
struct statfs sfs;
/* Clear supplementary group IDs */
setgroups(0, NULL);
/* for 32-bit userspace running over 64-bit kernels */
set_personality32();
/* Create /fastboot to skip run fsck */
fd = open("/fastboot", O_CREAT | O_RDONLY, 0644);
if (fd >= 0)
close(fd);
if (arg->res->misc.wait == YES) {
if (add_reach_runlevel_mark()) {
ret = VZ_WAIT_FAILED;
return -1;
}
}
if (mkdir("/proc", 0555) && errno != EEXIST)
return vzctl_err(VZ_SYSTEM_ERROR, errno,
"Can't mkdir /proc");
if (statfs("/proc", &sfs))
return vzctl_err(VZ_SYSTEM_ERROR, errno,
"statfs on /proc failed");
if (sfs.f_type != PROC_SUPER_MAGIC &&
mount("proc", "/proc", "proc", 0, 0))
return vzctl_err(VZ_SYSTEM_ERROR, errno,
"Failed to mount /proc");
if (stat_file("/sys") == 1)
mount("sysfs", "/sys", "sysfs", 0, 0);
if (create_param->feature_mask & VE_FEATURE_NFSD) {
mount("nfsd", "/proc/fs/nfsd", "nfsd", 0, 0);
make_dir("/var/lib/nfs/rpc_pipefs", 1);
mount("sunrpc", "/var/lib/nfs/rpc_pipefs", "rpc_pipefs", 0, 0);
}
write_val("/proc/sys/net/ipv6/conf/all/forwarding", "0");
/* Close status descriptor to report that
* environment is created.
*/
close(STDIN_FILENO);
/* Now we wait until CT setup will be done
If no error, then start init, otherwise exit.
*/
if (read(arg->wait_p, &ret, sizeof(ret)) == 0)
return -1;
if ((fd = open("/dev/null", O_RDWR)) != -1) {
dup2(fd, 0);
dup2(fd, 1);
dup2(fd, 2);
close(fd);
}
logger(10, 0, "Starting init");
close_fds(0, arg->err_p, -1);
execve("/sbin/init", argv, envp);
execve("/etc/init", argv, envp);
execve("/bin/init", argv, envp);
ret = VZ_FS_BAD_TMPL;
write(arg->err_p, &ret, sizeof(ret));
return ret;
}