opnsense-src/contrib/kyua/engine/execenv/execenv.cpp

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kyua: Add FreeBSD Jail execution environment support A new Kyua concept is added -- "execution environment". A test can be configured to be run within a specific environment. The test case lifecycle is extended respectively: - execenv init (creates a jail or does nothing for default execenv="host") - test exec - cleanup exec (optional) - execenv cleanup (removes a jail or does nothing for default execenv="host") The following new functionality is provided, from bottom to top: 1 ATF based tests - The new "execenv" metadata property can be set to explicitly ask for an execution environment: "host" or "jail". If it's not defined, as all existing tests do, then it implicitly means "host". - The new "execenv.jail.params" metadata property can be optionally defined to ask Kyua to use specific jail(8) parameters during creation of a temporary jail. An example is "vnet allow.raw_sockets". Kyua implicitly adds "children.max" to "execenv_jail_params" parameters with the maximum possible value. A test case can override it. 2 Kyuafile - The same new metadata properties can be defined on Kyuafile level: "execenv" and "execenv_jail_params". - Note that historically ATF uses dotted style of metadata naming, while Kyua uses underscore style. Hence "execenv.jail.params" vs. "execenv_jail_params". 3 kyua.conf, kyua CLI - The new "execenvs" engine configuration variable can be set to a list of execution environments to run only tests designed for. Tests of not listed environments are skipped. - By default, this variable lists all execution environments supported by a Kyua binary, e.g. execenvs="host jail". - This variable can be changed via "kyua.conf" or via kyua CLI's "-v" parameter. For example, "kyua -v execenvs=host test" will run only host-based tests and skip jail-based ones. - Current value of this variable can be examined with "kyua config". [markj] This feature has not landed upstream yet. See the discussion in https://github.com/freebsd/kyua/pull/224 . Having the ability to automatically jail tests allows many network tests to run in parallel, giving a drastic speedup. So, let's import the feature and start using it in main. Signed-off-by: Igor Ostapenko <pm@igoro.pro> Reviewed by: markj, kp Tested by: markj, kp MFC after: 3 months Differential Revision: https://reviews.freebsd.org/D45865 (cherry picked from commit 257e70f1d5ee61037c8c59b116538d3b6b1427a2) Approved by: kp (mentor), markj (mentor)
2024-07-16 14:41:12 -04:00
// Copyright 2023 The Kyua Authors.
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//
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// met:
//
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#include "engine/execenv/execenv.hpp"
#include "engine/execenv/execenv_host.hpp"
namespace execenv = engine::execenv;
using utils::none;
const char* execenv::default_execenv_name = "host";
/// List of registered execution environments, except default host one.
///
/// Use register_execenv() to add an entry to this global list.
static std::vector< std::shared_ptr< execenv::manager > >
execenv_managers;
void
execenv::register_execenv(const std::shared_ptr< execenv::manager > manager)
{
execenv_managers.push_back(manager);
}
const std::vector< std::shared_ptr< execenv::manager> >
execenv::execenvs()
{
return execenv_managers;
}
std::unique_ptr< execenv::interface >
execenv::get(const model::test_program& test_program,
const std::string& test_case_name)
{
for (auto m : execenv_managers) {
auto e = m->probe(test_program, test_case_name);
if (e != nullptr)
return e;
}
return std::unique_ptr< execenv::interface >(
new execenv::execenv_host(test_program, test_case_name));
}