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https://github.com/SerenityOS/serenity
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8289759f1d
This is quite useful for userspace applications that can't cope with the restriction, but it's still useful to impose other non-configurable restrictions by using jails.
42 lines
1.8 KiB
C++
42 lines
1.8 KiB
C++
/*
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* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibCore/ArgsParser.h>
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#include <LibCore/System.h>
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#include <LibMain/Main.h>
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#include <unistd.h>
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ErrorOr<int> serenity_main(Main::Arguments arguments)
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{
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StringView new_jail_name;
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Vector<StringView> command;
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Optional<size_t> existing_jail_index;
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Core::ArgsParser args_parser;
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bool preserve_env = false;
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args_parser.set_stop_on_first_non_option(true);
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args_parser.add_option(preserve_env, "Preserve user environment when running command", "preserve-env", 'E');
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args_parser.add_option(new_jail_name, "Create a new jail with a name", "jail-name", 'n', "New jail name");
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args_parser.add_option(existing_jail_index, "Use an existing jail index instead of creating new jail", "jail-index", 'i', "Existing jail index");
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args_parser.add_positional_argument(command, "Command to execute", "command");
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args_parser.parse(arguments);
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TRY(Core::System::pledge("stdio rpath exec id jail tty"));
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if (existing_jail_index.has_value() && !new_jail_name.is_null())
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return Error::from_string_view("Can't launch process in a new jail with a name and use an existing jail index."sv);
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if (existing_jail_index.has_value()) {
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TRY(Core::System::join_jail(existing_jail_index.value()));
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} else {
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// NOTE: We create a jail with "default" isolation options (as we define them in this program)
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JailIsolationFlags default_flags = (JailIsolationFlags::PIDIsolation);
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u64 new_jail_index = TRY(Core::System::create_jail(new_jail_name.is_null() ? ""sv : new_jail_name, default_flags));
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TRY(Core::System::join_jail(new_jail_index));
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}
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TRY(Core::System::exec_command(command, preserve_env));
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return 0;
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}
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