Module: RUnshare

Defined in:
lib/runshare.rb,
lib/runshare/version.rb,
ext/runshare/runshare.c

Defined Under Namespace

Classes: Error

Constant Summary collapse

VERSION = 
"0.1.0"

Class Method Summary collapse

Class Method Details

.unshare(*args) ⇒ Object 



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# File 'ext/runshare/runshare.c', line 150

static VALUE
rb_unshare(int argc, VALUE *argv, VALUE self) {
    VALUE opt = Qnil;

    struct rb_unshare_args args = {
        .set_groups = SETGROUPS_NONE,
        .map_user = -1,
        .map_group = -1,
        .propagation = UNSHARE_PROPAGATION_DEFAULT
    };

    rb_scan_args(argc, argv, "0:", &opt);

    if (!NIL_P(opt)) {
        VALUE kwvals[FLAGS_COUNT];

        rb_get_kwargs(opt, rb_unshare_keywords, 0, FLAGS_COUNT, kwvals);

        if (kwvals[CLONE_NEWUSER] != Qundef) args.clone_newuser = RTEST(kwvals[CLONE_NEWUSER]);
        if (kwvals[CLONE_NEWCGROUP] != Qundef) args.clone_newcgroup = RTEST(kwvals[CLONE_NEWCGROUP]);
        if (kwvals[CLONE_NEWIPC] != Qundef) args.clone_newipc = RTEST(kwvals[CLONE_NEWIPC]);
        if (kwvals[CLONE_NEWUTS] != Qundef) args.clone_newuts = RTEST(kwvals[CLONE_NEWUTS]);
        if (kwvals[CLONE_NEWNET] != Qundef) args.clone_newnet = RTEST(kwvals[CLONE_NEWNET]);
        if (kwvals[CLONE_NEWPID] != Qundef) args.clone_newpid = RTEST(kwvals[CLONE_NEWPID]);
        if (kwvals[CLONE_NEWNS] != Qundef) args.clone_newns = RTEST(kwvals[CLONE_NEWNS]);
        if (kwvals[CLONE_NEWTIME] != Qundef) args.clone_newtime = RTEST(kwvals[CLONE_NEWTIME]);
        if (kwvals[FORK_ON_CLONE] != Qundef) args.fork = RTEST(kwvals[FORK_ON_CLONE]);
        if (kwvals[WAIT_FORK] != Qundef) args.wait = RTEST(kwvals[WAIT_FORK]);
        args.mount_proc = kwvals[MOUNT_PROC];
        if (args.mount_proc != Qundef) ensure_string_ne(args.mount_proc, "invalid mount type");
        args.root = kwvals[NEW_ROOT];
        if (args.root != Qundef) ensure_string_ne(args.root, "invalid root type");
        args.new_dir = kwvals[NEW_DIR];
        if (args.new_dir != Qundef) ensure_string_ne(args.new_dir, "invalid new dir type");
        if (kwvals[MAP_ROOT_USER] != Qundef) args.map_root_user = RTEST(kwvals[MAP_ROOT_USER]);
        if (kwvals[MAP_CURRENT_USER] != Qundef) args.map_current_user = RTEST(kwvals[MAP_CURRENT_USER]);
        if (kwvals[MAP_USER] != Qundef) {
            args.map_user = get_user(StringValueCStr(kwvals[MAP_USER]), _("failed to parse uid"));
        }
        if (kwvals[MAP_GROUP] != Qundef) {
            args.map_group = get_group(StringValueCStr(kwvals[MAP_GROUP]), _("failed to parse gid"));
        }
        if (kwvals[KEEP_CAPS] != Qundef) args.keep_caps = RTEST(kwvals[KEEP_CAPS]);
        if (kwvals[SET_UID] != Qundef) args.set_uid = NUM2UIDT(kwvals[SET_UID]);
        if (kwvals[SET_GID] != Qundef) args.set_gid = NUM2GIDT(kwvals[SET_GID]);
        if (kwvals[SET_GROUPS] != Qundef) args.set_groups = setgroups_str2id(StringValueCStr(kwvals[SET_GROUPS]));
        if (kwvals[PROPAGATION] != Qundef) args.propagation = parse_propagation(StringValueCStr(kwvals[PROPAGATION]));
        if (kwvals[FORCE_BOOTTIME] != Qundef) args.force_boottime = RTEST(kwvals[FORCE_BOOTTIME]);
        if (kwvals[FORCE_MONOTONIC] != Qundef) args.force_monotonic = RTEST(kwvals[FORCE_MONOTONIC]);
        if (kwvals[KILL_CHILD] != Qundef) args.kill_child = RTEST(kwvals[KILL_CHILD]);
    }

    return INT2FIX(rb_unshare_internal(args));
}