"Spawn a minimal namespace container for debugging, testing and building.\n\n"
" -h --help Show this help\n"
" -D --directory=NAME Root directory for the container\n"
"Spawn a minimal namespace container for debugging, testing and building.\n\n"
" -h --help Show this help\n"
" -D --directory=NAME Root directory for the container\n"
- { "help", no_argument, NULL, 'h' },
- { "directory", required_argument, NULL, 'D' },
- { "user", optional_argument, NULL, 'u' },
- { NULL, 0, NULL, 0 }
+ { "help", no_argument, NULL, 'h' },
+ { "directory", required_argument, NULL, 'D' },
+ { "user", required_argument, NULL, 'u' },
+ { "private-network", no_argument, NULL, ARG_PRIVATE_NETWORK },
+ { NULL, 0, NULL, 0 }
- { "/proc", "/proc", "bind", NULL, MS_BIND, true },
+ { "proc", "/proc", "proc", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV, true },
{ "/proc/sys", "/proc/sys", "bind", NULL, MS_BIND, true }, /* Bind mount first */
{ "/proc/sys", "/proc/sys", "bind", NULL, MS_BIND|MS_RDONLY|MS_REMOUNT, true }, /* Then, make it r/o */
{ "/sys", "/sys", "bind", NULL, MS_BIND, true }, /* Bind mount first */
{ "/proc/sys", "/proc/sys", "bind", NULL, MS_BIND, true }, /* Bind mount first */
{ "/proc/sys", "/proc/sys", "bind", NULL, MS_BIND|MS_RDONLY|MS_REMOUNT, true }, /* Then, make it r/o */
{ "/sys", "/sys", "bind", NULL, MS_BIND, true }, /* Bind mount first */
{ "/dev/pts", "/dev/pts", "bind", NULL, MS_BIND, true },
{ "tmpfs", "/run", "tmpfs", "mode=755", MS_NOSUID|MS_NODEV, true },
#ifdef HAVE_SELINUX
{ "/dev/pts", "/dev/pts", "bind", NULL, MS_BIND, true },
{ "tmpfs", "/run", "tmpfs", "mode=755", MS_NOSUID|MS_NODEV, true },
#ifdef HAVE_SELINUX
- { "/selinux", "/selinux", "bind", NULL, MS_BIND, false }, /* Bind mount first */
- { "/selinux", "/selinux", "bind", NULL, MS_BIND|MS_RDONLY|MS_REMOUNT, false }, /* Then, make it r/o */
+ { "/sys/fs/selinux", "/sys/fs/selinux", "bind", NULL, MS_BIND, false }, /* Bind mount first */
+ { "/sys/fs/selinux", "/sys/fs/selinux", "bind", NULL, MS_BIND|MS_RDONLY|MS_REMOUNT, false }, /* Then, make it r/o */
/* Fix the timezone, if possible */
if (asprintf(&where, "%s/%s", dest, "/etc/localtime") >= 0) {
/* Fix the timezone, if possible */
if (asprintf(&where, "%s/%s", dest, "/etc/localtime") >= 0) {
- mount("/etc/localtime", where, "bind", MS_BIND, NULL);
- mount("/etc/localtime", where, "bind", MS_BIND|MS_REMOUNT|MS_RDONLY, NULL);
+
+ if (mount("/etc/localtime", where, "bind", MS_BIND, NULL) >= 0)
+ mount("/etc/localtime", where, "bind", MS_BIND|MS_REMOUNT|MS_RDONLY, NULL);
+
sigset_add_many(&mask, SIGCHLD, SIGWINCH, SIGTERM, SIGINT, -1);
assert_se(sigprocmask(SIG_BLOCK, &mask, NULL) == 0);
sigset_add_many(&mask, SIGCHLD, SIGWINCH, SIGTERM, SIGINT, -1);
assert_se(sigprocmask(SIG_BLOCK, &mask, NULL) == 0);
- if ((pid = syscall(__NR_clone, SIGCHLD|CLONE_NEWIPC|CLONE_NEWNS|CLONE_NEWPID|CLONE_NEWUTS, NULL)) < 0) {
+ if ((pid = syscall(__NR_clone, SIGCHLD|CLONE_NEWIPC|CLONE_NEWNS|CLONE_NEWPID|CLONE_NEWUTS|(arg_private_network ? CLONE_NEWNET : 0), NULL)) < 0) {
- if ((asprintf((char**)(envp + 2), "HOME=%s", home? home: "/root") < 0) ||
- (asprintf((char**)(envp + 3), "USER=%s", arg_user? arg_user : "root") < 0) ||
- (asprintf((char**)(envp + 4), "LOGNAME=%s", arg_user? arg_user : "root") < 0)) {
+ if ((asprintf((char**)(envp + 3), "HOME=%s", home? home: "/root") < 0) ||
+ (asprintf((char**)(envp + 4), "USER=%s", arg_user? arg_user : "root") < 0) ||
+ (asprintf((char**)(envp + 5), "LOGNAME=%s", arg_user? arg_user : "root") < 0)) {