mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager
synced 2024-09-16 06:40:41 +00:00
Merge commit '23cbce4bc9c70fc33d3413fc1b9a5f3303498036' as 'shared/n-acd'
Imported n-acd code with command: git subtree add --prefix shared/n-acd git@github.com:nettools/n-acd.git a68b55992dd7b38bdb9dbbdba4a9284ff2c2cce3 --squash To update the library use: git subtree pull --prefix shared/n-acd git@github.com:nettools/n-acd.git master --squash
This commit is contained in:
commit
8a01bdc2d1
16
shared/n-acd/.editorconfig
Normal file
16
shared/n-acd/.editorconfig
Normal file
|
@ -0,0 +1,16 @@
|
|||
# http://EditorConfig.org
|
||||
|
||||
# top-most EditorConfig file
|
||||
root = true
|
||||
|
||||
# Unix-style newlines with a newline ending every file, utf-8 charset
|
||||
[*]
|
||||
end_of_line = lf
|
||||
insert_final_newline = true
|
||||
trim_trailing_whitespace = true
|
||||
charset = utf-8
|
||||
|
||||
# match config files, set indent to spaces with width of eight
|
||||
[*.{c,h}]
|
||||
indent_style = space
|
||||
indent_size = 8
|
6
shared/n-acd/.gitmodules
vendored
Normal file
6
shared/n-acd/.gitmodules
vendored
Normal file
|
@ -0,0 +1,6 @@
|
|||
[submodule "subprojects/c-list"]
|
||||
path = subprojects/c-list
|
||||
url = https://github.com/c-util/c-list.git
|
||||
[submodule "subprojects/c-siphash"]
|
||||
path = subprojects/c-siphash
|
||||
url = https://github.com/c-util/c-siphash.git
|
18
shared/n-acd/.travis.yml
Normal file
18
shared/n-acd/.travis.yml
Normal file
|
@ -0,0 +1,18 @@
|
|||
dist: trusty
|
||||
sudo: required
|
||||
os: linux
|
||||
language: c
|
||||
compiler:
|
||||
- gcc
|
||||
- clang
|
||||
|
||||
install:
|
||||
- curl -L "https://github.com/ninja-build/ninja/releases/download/v1.7.2/ninja-linux.zip" -o "ninja-linux.zip"
|
||||
- sudo unzip "ninja-linux.zip" -d "/usr/local/bin"
|
||||
- sudo chmod 755 "/usr/local/bin/ninja"
|
||||
- pip3 install meson
|
||||
|
||||
script:
|
||||
- meson "build"
|
||||
- ninja -C "build"
|
||||
- sudo MESON_TESTTHREADS=64 ninja -C "build" test
|
19
shared/n-acd/COPYING
Normal file
19
shared/n-acd/COPYING
Normal file
|
@ -0,0 +1,19 @@
|
|||
LICENSE:
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
|
||||
COPYRIGHT: (ordered alphabetically)
|
||||
Copyright (C) 2015-2017 Red Hat, Inc.
|
||||
|
||||
AUTHORS: (ordered alphabetically)
|
||||
David Herrmann <dh.herrmann@gmail.com>
|
||||
Tom Gundersen <teg@jklm.no>
|
201
shared/n-acd/LICENSE
Normal file
201
shared/n-acd/LICENSE
Normal file
|
@ -0,0 +1,201 @@
|
|||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
|
||||
"Licensor" shall mean the copyright owner or entity authorized by
|
||||
the copyright owner that is granting the License.
|
||||
|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
||||
other entities that control, are controlled by, or are under common
|
||||
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|
||||
"control" means (i) the power, direct or indirect, to cause the
|
||||
direction or management of such entity, whether by contract or
|
||||
otherwise, or (ii) ownership of fifty percent (50%) or more of the
|
||||
outstanding shares, or (iii) beneficial ownership of such entity.
|
||||
|
||||
"You" (or "Your") shall mean an individual or Legal Entity
|
||||
exercising permissions granted by this License.
|
||||
|
||||
"Source" form shall mean the preferred form for making modifications,
|
||||
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|
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|
||||
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|
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|
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"Work" shall mean the work of authorship, whether in Source or
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|
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|
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|
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|
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You may add Your own copyright statement to Your modifications and
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5. Submission of Contributions. Unless You explicitly state otherwise,
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Notwithstanding the above, nothing herein shall supersede or modify
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|
||||
END OF TERMS AND CONDITIONS
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APPENDIX: How to apply the Apache License to your work.
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To apply the Apache License to your work, attach the following
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You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
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See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
50
shared/n-acd/README
Normal file
50
shared/n-acd/README
Normal file
|
@ -0,0 +1,50 @@
|
|||
n-acd - IPv4 Address Conflict Detection
|
||||
|
||||
ABOUT:
|
||||
The n-acd project implements the IPv4 Address Conflict Detection
|
||||
standard as defined in RFC-5227. The state machine is implemented in a
|
||||
shared library and provides a stable ISO-C11 API. The implementation is
|
||||
linux-only and relies heavily on the API behavior of recent linux
|
||||
kernel releases.
|
||||
|
||||
DETAILS:
|
||||
https://github.com/nettools/n-acd/wiki
|
||||
|
||||
BUG REPORTS:
|
||||
https://github.com/nettools/n-acd/issues
|
||||
|
||||
GIT:
|
||||
git@github.com:nettools/n-acd.git
|
||||
https://github.com/nettools/n-acd.git
|
||||
|
||||
GITWEB:
|
||||
https://github.com/nettools/n-acd
|
||||
|
||||
LICENSE:
|
||||
Apache Software License 2.0 (LICENSE)
|
||||
See COPYING for details.
|
||||
|
||||
REQUIREMENTS:
|
||||
The requirements for n-acd are:
|
||||
|
||||
Linux kernel >= 3.0
|
||||
libc (e.g., glibc >= 2.16)
|
||||
|
||||
At build-time, the following software is required:
|
||||
|
||||
meson >= 0.41
|
||||
pkg-config >= 0.29
|
||||
|
||||
INSTALL:
|
||||
The meson build-system is used for n-acd. Contact upstream
|
||||
documentation for detailed help. In most situations the following
|
||||
commands are sufficient to build and install n-acd from source:
|
||||
|
||||
$ mkdir build
|
||||
$ cd build
|
||||
$ meson setup . ..
|
||||
$ ninja
|
||||
$ ninja test
|
||||
# ninja install
|
||||
|
||||
No custom configuration options are available.
|
19
shared/n-acd/meson.build
Normal file
19
shared/n-acd/meson.build
Normal file
|
@ -0,0 +1,19 @@
|
|||
project('n-acd',
|
||||
'c',
|
||||
version: '1',
|
||||
license: 'Apache',
|
||||
default_options: [
|
||||
'buildtype=release',
|
||||
'c_std=c11',
|
||||
])
|
||||
|
||||
add_project_arguments('-D_GNU_SOURCE', language: 'c')
|
||||
mod_pkgconfig = import('pkgconfig')
|
||||
|
||||
sub_clist = subproject('c-list')
|
||||
sub_csiphash = subproject('c-siphash')
|
||||
|
||||
dep_clist = sub_clist.get_variable('libclist_dep')
|
||||
dep_csiphash = sub_csiphash.get_variable('libcsiphash_dep')
|
||||
|
||||
subdir('src')
|
13
shared/n-acd/src/libnacd.sym
Normal file
13
shared/n-acd/src/libnacd.sym
Normal file
|
@ -0,0 +1,13 @@
|
|||
LIBNACD_1 {
|
||||
global:
|
||||
n_acd_new;
|
||||
n_acd_free;
|
||||
n_acd_get_fd;
|
||||
n_acd_dispatch;
|
||||
n_acd_pop_event;
|
||||
n_acd_start;
|
||||
n_acd_stop;
|
||||
n_acd_announce;
|
||||
local:
|
||||
*;
|
||||
};
|
76
shared/n-acd/src/meson.build
Normal file
76
shared/n-acd/src/meson.build
Normal file
|
@ -0,0 +1,76 @@
|
|||
#
|
||||
# target: libnacd.so
|
||||
# We build both, a static and a shared library. We want our tests to get access
|
||||
# to internals, so we link them statically.
|
||||
#
|
||||
|
||||
libnacd_private = static_library('nacd-private',
|
||||
['n-acd.c'],
|
||||
c_args: [
|
||||
'-fvisibility=hidden',
|
||||
'-fno-common'
|
||||
],
|
||||
dependencies: [
|
||||
dep_clist,
|
||||
dep_csiphash,
|
||||
],
|
||||
pic: true)
|
||||
install_headers('n-acd.h')
|
||||
libnacd_symfile = join_paths(meson.current_source_dir(), 'libnacd.sym')
|
||||
libnacd_shared = shared_library('nacd',
|
||||
dependencies: dep_csiphash,
|
||||
objects: libnacd_private.extract_all_objects(),
|
||||
install: true,
|
||||
soversion: 0,
|
||||
link_depends: libnacd_symfile,
|
||||
link_args: [
|
||||
'-Wl,--no-undefined',
|
||||
'-Wl,--version-script=@0@'.format(libnacd_symfile)
|
||||
])
|
||||
mod_pkgconfig.generate(libraries: libnacd_shared,
|
||||
version: meson.project_version(),
|
||||
name: 'libnacd',
|
||||
filebase: 'libnacd',
|
||||
description: 'IPv4 Address Conflict Detection')
|
||||
|
||||
#
|
||||
# target: test-api
|
||||
# The test-api program explicitly links against the shared library, since it
|
||||
# tests for symbol visibility.
|
||||
#
|
||||
|
||||
test_api = executable('test-api',
|
||||
['test-api.c'],
|
||||
link_with: libnacd_shared)
|
||||
test('API Symbol Visibility', test_api)
|
||||
|
||||
#
|
||||
# target: test-*
|
||||
# All other tests are listed here. They link against the static library, so
|
||||
# they can access internals for verification.
|
||||
#
|
||||
|
||||
test_basic = executable('test-basic',
|
||||
['test-basic.c'],
|
||||
link_with: libnacd_private)
|
||||
test('Basic API Behavior', test_basic)
|
||||
|
||||
test_loopback = executable('test-loopback',
|
||||
['test-loopback.c'],
|
||||
link_with: libnacd_private)
|
||||
test('Echo Suppression via Loopback', test_loopback)
|
||||
|
||||
test_twice = executable('test-twice',
|
||||
['test-twice.c'],
|
||||
link_with: libnacd_private)
|
||||
test('Two ACD in Parallel', test_twice)
|
||||
|
||||
test_unplug = executable('test-unplug',
|
||||
['test-unplug.c'],
|
||||
link_with: libnacd_private)
|
||||
test('Async Interface Hotplug', test_unplug)
|
||||
|
||||
test_unused = executable('test-unsed',
|
||||
['test-unused.c'],
|
||||
link_with: libnacd_private)
|
||||
test('Unconflicted ACD', test_unused)
|
1240
shared/n-acd/src/n-acd.c
Normal file
1240
shared/n-acd/src/n-acd.c
Normal file
File diff suppressed because it is too large
Load diff
94
shared/n-acd/src/n-acd.h
Normal file
94
shared/n-acd/src/n-acd.h
Normal file
|
@ -0,0 +1,94 @@
|
|||
#pragma once
|
||||
|
||||
/*
|
||||
* IPv4 Address Conflict Detection
|
||||
*
|
||||
* This is the public header of the n-acd library, implementing IPv4 Address
|
||||
* Conflict Detection as described in RFC-5227. This header defines the public
|
||||
* API and all entry points of n-acd.
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
#include <netinet/in.h>
|
||||
#include <stdbool.h>
|
||||
|
||||
enum {
|
||||
_N_ACD_E_SUCCESS,
|
||||
|
||||
N_ACD_E_DONE,
|
||||
N_ACD_E_STOPPED,
|
||||
N_ACD_E_PREEMPTED,
|
||||
|
||||
N_ACD_E_INVALID_ARGUMENT,
|
||||
N_ACD_E_BUSY,
|
||||
};
|
||||
|
||||
typedef struct NAcd NAcd;
|
||||
|
||||
typedef struct NAcdConfig {
|
||||
int ifindex;
|
||||
unsigned int transport;
|
||||
const uint8_t *mac;
|
||||
size_t n_mac;
|
||||
struct in_addr ip;
|
||||
uint64_t timeout_msec;
|
||||
} NAcdConfig;
|
||||
|
||||
typedef struct NAcdEvent {
|
||||
unsigned int event;
|
||||
union {
|
||||
struct {
|
||||
} ready, down;
|
||||
struct {
|
||||
uint16_t operation;
|
||||
uint8_t *sender;
|
||||
size_t n_sender;
|
||||
struct in_addr target;
|
||||
} used, defended, conflict;
|
||||
};
|
||||
} NAcdEvent;
|
||||
|
||||
enum {
|
||||
N_ACD_TRANSPORT_ETHERNET,
|
||||
_N_ACD_TRANSPORT_N,
|
||||
};
|
||||
|
||||
enum {
|
||||
N_ACD_EVENT_READY,
|
||||
N_ACD_EVENT_USED,
|
||||
N_ACD_EVENT_DEFENDED,
|
||||
N_ACD_EVENT_CONFLICT,
|
||||
N_ACD_EVENT_DOWN,
|
||||
_N_ACD_EVENT_N,
|
||||
};
|
||||
|
||||
enum {
|
||||
N_ACD_DEFEND_NEVER,
|
||||
N_ACD_DEFEND_ONCE,
|
||||
N_ACD_DEFEND_ALWAYS,
|
||||
_N_ACD_DEFEND_N,
|
||||
};
|
||||
|
||||
int n_acd_new(NAcd **acdp);
|
||||
NAcd *n_acd_free(NAcd *acd);
|
||||
|
||||
void n_acd_get_fd(NAcd *acd, int *fdp);
|
||||
|
||||
int n_acd_dispatch(NAcd *acd);
|
||||
int n_acd_pop_event(NAcd *acd, NAcdEvent **eventp);
|
||||
int n_acd_announce(NAcd *acd, unsigned int defend);
|
||||
|
||||
int n_acd_start(NAcd *acd, NAcdConfig *config);
|
||||
int n_acd_stop(NAcd *acd);
|
||||
|
||||
static inline void n_acd_freep(NAcd **acd) {
|
||||
if (*acd)
|
||||
n_acd_free(*acd);
|
||||
}
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
84
shared/n-acd/src/test-api.c
Normal file
84
shared/n-acd/src/test-api.c
Normal file
|
@ -0,0 +1,84 @@
|
|||
/*
|
||||
* Tests for n-acd API
|
||||
* This verifies the visibility and availability of the public API of the
|
||||
* n-acd library.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include "test.h"
|
||||
|
||||
static void test_api_constants(void) {
|
||||
assert(N_ACD_DEFEND_NEVER != _N_ACD_DEFEND_N);
|
||||
assert(N_ACD_DEFEND_ONCE != _N_ACD_DEFEND_N);
|
||||
assert(N_ACD_DEFEND_ALWAYS != _N_ACD_DEFEND_N);
|
||||
|
||||
assert(N_ACD_EVENT_READY != _N_ACD_EVENT_N);
|
||||
assert(N_ACD_EVENT_USED != _N_ACD_EVENT_N);
|
||||
assert(N_ACD_EVENT_DEFENDED != _N_ACD_EVENT_N);
|
||||
assert(N_ACD_EVENT_CONFLICT != _N_ACD_EVENT_N);
|
||||
assert(N_ACD_EVENT_DOWN != _N_ACD_EVENT_N);
|
||||
}
|
||||
|
||||
static void test_api_management(void) {
|
||||
NAcd *acd = NULL;
|
||||
int r;
|
||||
|
||||
/* new/free/freep */
|
||||
|
||||
n_acd_freep(&acd);
|
||||
|
||||
r = n_acd_new(&acd);
|
||||
assert(!r);
|
||||
|
||||
n_acd_free(acd);
|
||||
}
|
||||
|
||||
static void test_api_runtime(void) {
|
||||
NAcdConfig config = {
|
||||
.ifindex = 1,
|
||||
.transport = N_ACD_TRANSPORT_ETHERNET,
|
||||
.mac = (uint8_t[]){ 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54 },
|
||||
.n_mac = ETH_ALEN,
|
||||
.ip = { htobe32((127 << 24) | (1 << 0)) },
|
||||
.timeout_msec = 100,
|
||||
};
|
||||
NAcd *acd;
|
||||
int r;
|
||||
|
||||
/* get_fd/dispatch/pop_event/start/stop/announce */
|
||||
|
||||
r = n_acd_new(&acd);
|
||||
assert(!r);
|
||||
|
||||
n_acd_get_fd(acd, &r);
|
||||
assert(r >= 0);
|
||||
r = n_acd_dispatch(acd);
|
||||
assert(!r);
|
||||
r = n_acd_pop_event(acd, NULL);
|
||||
assert(r == N_ACD_E_STOPPED);
|
||||
r = n_acd_start(acd, &config);
|
||||
assert(!r);
|
||||
r = n_acd_start(acd, &config);
|
||||
assert(r == N_ACD_E_BUSY);
|
||||
r = n_acd_pop_event(acd, NULL);
|
||||
assert(r == N_ACD_E_DONE);
|
||||
r = n_acd_stop(acd);
|
||||
assert(!r);
|
||||
r = n_acd_announce(acd, N_ACD_DEFEND_NEVER);
|
||||
assert(r == N_ACD_E_BUSY);
|
||||
|
||||
n_acd_free(acd);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
int r;
|
||||
|
||||
r = test_setup();
|
||||
if (r)
|
||||
return r;
|
||||
|
||||
test_api_constants();
|
||||
test_api_management();
|
||||
test_api_runtime();
|
||||
return 0;
|
||||
}
|
13
shared/n-acd/src/test-basic.c
Normal file
13
shared/n-acd/src/test-basic.c
Normal file
|
@ -0,0 +1,13 @@
|
|||
/*
|
||||
* Basic Tests
|
||||
*/
|
||||
|
||||
#include <assert.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include "n-acd.h"
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
return 0;
|
||||
}
|
66
shared/n-acd/src/test-loopback.c
Normal file
66
shared/n-acd/src/test-loopback.c
Normal file
|
@ -0,0 +1,66 @@
|
|||
/*
|
||||
* Test on loopback device
|
||||
* This runs the ACD engine on the loopback device, effectively testing the BPF
|
||||
* filter of ACD to discard its own packets. This might happen on
|
||||
* non-spanning-tree networks, or on networks that echo packets.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include "test.h"
|
||||
|
||||
static void test_loopback(int ifindex, uint8_t *mac, size_t n_mac) {
|
||||
NAcdConfig config = {
|
||||
.ifindex = ifindex,
|
||||
.transport = N_ACD_TRANSPORT_ETHERNET,
|
||||
.mac = mac,
|
||||
.n_mac = n_mac,
|
||||
.ip = { htobe32((192 << 24) | (168 << 16) | (1 << 0)) },
|
||||
.timeout_msec = 100,
|
||||
};
|
||||
struct pollfd pfds;
|
||||
NAcd *acd;
|
||||
int r, fd;
|
||||
|
||||
r = n_acd_new(&acd);
|
||||
assert(!r);
|
||||
|
||||
n_acd_get_fd(acd, &fd);
|
||||
r = n_acd_start(acd, &config);
|
||||
assert(!r);
|
||||
|
||||
for (;;) {
|
||||
NAcdEvent *event;
|
||||
pfds = (struct pollfd){ .fd = fd, .events = POLLIN };
|
||||
r = poll(&pfds, 1, -1);
|
||||
assert(r >= 0);
|
||||
|
||||
r = n_acd_dispatch(acd);
|
||||
assert(!r);
|
||||
|
||||
r = n_acd_pop_event(acd, &event);
|
||||
if (!r) {
|
||||
assert(event->event == N_ACD_EVENT_READY);
|
||||
break;
|
||||
} else {
|
||||
assert(r == N_ACD_E_DONE);
|
||||
}
|
||||
}
|
||||
|
||||
n_acd_free(acd);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
struct ether_addr mac;
|
||||
int r, ifindex;
|
||||
|
||||
r = test_setup();
|
||||
if (r)
|
||||
return r;
|
||||
|
||||
r = system("ip link set lo up");
|
||||
assert(r == 0);
|
||||
test_if_query("lo", &ifindex, &mac);
|
||||
test_loopback(ifindex, mac.ether_addr_octet, sizeof(mac.ether_addr_octet));
|
||||
|
||||
return 0;
|
||||
}
|
97
shared/n-acd/src/test-twice.c
Normal file
97
shared/n-acd/src/test-twice.c
Normal file
|
@ -0,0 +1,97 @@
|
|||
/*
|
||||
* Test with unused address twice in parallel
|
||||
* This runs the ACD engine with an unused address on a veth pair, but it runs
|
||||
* it on both ends. We expect the PROBE to fail on at least one of the devices.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include "test.h"
|
||||
|
||||
static void test_unused(int ifindex1, uint8_t *mac1, size_t n_mac1, int ifindex2, uint8_t *mac2, size_t n_mac2) {
|
||||
NAcdConfig config1 = {
|
||||
.ifindex = ifindex1,
|
||||
.transport = N_ACD_TRANSPORT_ETHERNET,
|
||||
.mac = mac1,
|
||||
.n_mac = n_mac1,
|
||||
.ip = { htobe32((192 << 24) | (168 << 16) | (1 << 0)) },
|
||||
.timeout_msec = 100,
|
||||
};
|
||||
NAcdConfig config2 = {
|
||||
.ifindex = ifindex2,
|
||||
.transport = N_ACD_TRANSPORT_ETHERNET,
|
||||
.mac = mac2,
|
||||
.n_mac = n_mac2,
|
||||
.ip = { htobe32((192 << 24) | (168 << 16) | (1 << 0)) },
|
||||
.timeout_msec = 100,
|
||||
};
|
||||
struct pollfd pfds[2];
|
||||
NAcd *acd1, *acd2;
|
||||
int r, fd1, fd2, state1, state2;
|
||||
|
||||
r = n_acd_new(&acd1);
|
||||
assert(!r);
|
||||
r = n_acd_new(&acd2);
|
||||
assert(!r);
|
||||
|
||||
n_acd_get_fd(acd1, &fd1);
|
||||
n_acd_get_fd(acd2, &fd2);
|
||||
|
||||
r = n_acd_start(acd1, &config1);
|
||||
assert(!r);
|
||||
r = n_acd_start(acd2, &config2);
|
||||
assert(!r);
|
||||
|
||||
for (state1 = state2 = -1; state1 == -1 || state2 == -1; ) {
|
||||
NAcdEvent *event;
|
||||
pfds[0] = (struct pollfd){ .fd = fd1, .events = (state1 == -1) ? POLLIN : 0 };
|
||||
pfds[1] = (struct pollfd){ .fd = fd2, .events = (state2 == -1) ? POLLIN : 0 };
|
||||
|
||||
r = poll(pfds, sizeof(pfds) / sizeof(*pfds), -1);
|
||||
assert(r >= 0);
|
||||
|
||||
if (state1 == -1) {
|
||||
r = n_acd_dispatch(acd1);
|
||||
assert(!r);
|
||||
|
||||
r = n_acd_pop_event(acd1, &event);
|
||||
if (!r) {
|
||||
assert(event->event == N_ACD_EVENT_READY || event->event == N_ACD_EVENT_USED);
|
||||
state1 = !!(event->event == N_ACD_EVENT_READY);
|
||||
} else {
|
||||
assert(r == N_ACD_E_DONE);
|
||||
}
|
||||
}
|
||||
|
||||
if (state2 == -1) {
|
||||
r = n_acd_dispatch(acd2);
|
||||
assert(!r);
|
||||
|
||||
r = n_acd_pop_event(acd2, &event);
|
||||
if (!r) {
|
||||
assert(event->event == N_ACD_EVENT_READY || event->event == N_ACD_EVENT_USED);
|
||||
state2 = !!(event->event == N_ACD_EVENT_READY);
|
||||
} else {
|
||||
assert(r == N_ACD_E_DONE);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
n_acd_free(acd1);
|
||||
n_acd_free(acd2);
|
||||
|
||||
assert(!state1 || !state2);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
struct ether_addr mac1, mac2;
|
||||
int r, ifindex1, ifindex2;
|
||||
|
||||
r = test_setup();
|
||||
if (r)
|
||||
return r;
|
||||
|
||||
test_veth_new(&ifindex1, &mac1, &ifindex2, &mac2);
|
||||
test_unused(ifindex1, mac1.ether_addr_octet, sizeof(mac2.ether_addr_octet), ifindex2, mac2.ether_addr_octet, sizeof(mac2.ether_addr_octet));
|
||||
|
||||
return 0;
|
||||
}
|
84
shared/n-acd/src/test-unplug.c
Normal file
84
shared/n-acd/src/test-unplug.c
Normal file
|
@ -0,0 +1,84 @@
|
|||
/*
|
||||
* Unplug device during test run
|
||||
* Run the ACD engine with an address that is not used by anyone else on the
|
||||
* link, but DOWN or UNPLUG the device while running.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include "test.h"
|
||||
|
||||
static void test_unplug_down(int ifindex, uint8_t *mac, size_t n_mac, unsigned int run) {
|
||||
NAcdConfig config = {
|
||||
.ifindex = ifindex,
|
||||
.transport = N_ACD_TRANSPORT_ETHERNET,
|
||||
.mac = mac,
|
||||
.n_mac = n_mac,
|
||||
.ip = { htobe32((192 << 24) | (168 << 16) | (1 << 0)) },
|
||||
.timeout_msec = 100,
|
||||
};
|
||||
struct pollfd pfds;
|
||||
NAcd *acd;
|
||||
int r, fd;
|
||||
|
||||
if (!run--)
|
||||
test_veth_cmd(ifindex, "down");
|
||||
|
||||
r = n_acd_new(&acd);
|
||||
assert(!r);
|
||||
|
||||
if (!run--)
|
||||
test_veth_cmd(ifindex, "down");
|
||||
|
||||
n_acd_get_fd(acd, &fd);
|
||||
r = n_acd_start(acd, &config);
|
||||
assert(!r);
|
||||
|
||||
if (!run--)
|
||||
test_veth_cmd(ifindex, "down");
|
||||
|
||||
for (;;) {
|
||||
NAcdEvent *event;
|
||||
pfds = (struct pollfd){ .fd = fd, .events = POLLIN };
|
||||
r = poll(&pfds, 1, -1);
|
||||
assert(r >= 0);
|
||||
|
||||
if (!run--)
|
||||
test_veth_cmd(ifindex, "down");
|
||||
|
||||
r = n_acd_dispatch(acd);
|
||||
assert(!r);
|
||||
|
||||
r = n_acd_pop_event(acd, &event);
|
||||
if (!r) {
|
||||
if (event->event == N_ACD_EVENT_DOWN) {
|
||||
break;
|
||||
} else {
|
||||
assert(event->event == N_ACD_EVENT_READY);
|
||||
test_veth_cmd(ifindex, "down");
|
||||
}
|
||||
} else {
|
||||
assert(r == N_ACD_E_DONE);
|
||||
}
|
||||
}
|
||||
|
||||
n_acd_free(acd);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
struct ether_addr mac;
|
||||
unsigned int i;
|
||||
int r, ifindex;
|
||||
|
||||
r = test_setup();
|
||||
if (r)
|
||||
return r;
|
||||
|
||||
test_veth_new(&ifindex, &mac, NULL, NULL);
|
||||
|
||||
for (i = 0; i < 5; ++i) {
|
||||
test_unplug_down(ifindex, mac.ether_addr_octet, sizeof(mac.ether_addr_octet), i);
|
||||
test_veth_cmd(ifindex, "up");
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
63
shared/n-acd/src/test-unused.c
Normal file
63
shared/n-acd/src/test-unused.c
Normal file
|
@ -0,0 +1,63 @@
|
|||
/*
|
||||
* Test with unused address
|
||||
* Run the ACD engine with an address that is not used by anyone else on the
|
||||
* link. This should just pass through, with a short, random timeout.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include "test.h"
|
||||
|
||||
static void test_unused(int ifindex, const uint8_t *mac, size_t n_mac) {
|
||||
NAcdConfig config = {
|
||||
.ifindex = ifindex,
|
||||
.transport = N_ACD_TRANSPORT_ETHERNET,
|
||||
.mac = mac,
|
||||
.n_mac = n_mac,
|
||||
.ip = { htobe32((192 << 24) | (168 << 16) | (1 << 0)) },
|
||||
.timeout_msec = 100,
|
||||
};
|
||||
struct pollfd pfds;
|
||||
NAcd *acd;
|
||||
int r, fd;
|
||||
|
||||
r = n_acd_new(&acd);
|
||||
assert(!r);
|
||||
|
||||
n_acd_get_fd(acd, &fd);
|
||||
r = n_acd_start(acd, &config);
|
||||
assert(!r);
|
||||
|
||||
for (;;) {
|
||||
NAcdEvent *event;
|
||||
pfds = (struct pollfd){ .fd = fd, .events = POLLIN };
|
||||
r = poll(&pfds, 1, -1);
|
||||
assert(r >= 0);
|
||||
|
||||
r = n_acd_dispatch(acd);
|
||||
assert(!r);
|
||||
|
||||
r = n_acd_pop_event(acd, &event);
|
||||
if (!r) {
|
||||
assert(event->event == N_ACD_EVENT_READY);
|
||||
break;
|
||||
} else {
|
||||
assert(r == N_ACD_E_DONE);
|
||||
}
|
||||
}
|
||||
|
||||
n_acd_free(acd);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
struct ether_addr mac;
|
||||
int r, ifindex;
|
||||
|
||||
r = test_setup();
|
||||
if (r)
|
||||
return r;
|
||||
|
||||
test_veth_new(&ifindex, &mac, NULL, NULL);
|
||||
test_unused(ifindex, mac.ether_addr_octet, sizeof(mac.ether_addr_octet));
|
||||
|
||||
return 0;
|
||||
}
|
97
shared/n-acd/src/test.h
Normal file
97
shared/n-acd/src/test.h
Normal file
|
@ -0,0 +1,97 @@
|
|||
#pragma once
|
||||
|
||||
/*
|
||||
* Test Helpers
|
||||
* Bunch of helpers to setup the environment for networking tests. This
|
||||
* includes net-namespace setups, veth setups, and more.
|
||||
*/
|
||||
|
||||
#include <assert.h>
|
||||
#include <endian.h>
|
||||
#include <errno.h>
|
||||
#include <net/ethernet.h>
|
||||
#include <net/if.h>
|
||||
#include <netinet/in.h>
|
||||
#include <poll.h>
|
||||
#include <sched.h>
|
||||
#include <stdbool.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <unistd.h>
|
||||
#include "n-acd.h"
|
||||
|
||||
static inline void test_if_query(const char *name, int *indexp, struct ether_addr *macp) {
|
||||
struct ifreq ifr = {};
|
||||
size_t l;
|
||||
int r, s;
|
||||
|
||||
l = strlen(name);
|
||||
assert(l <= IF_NAMESIZE);
|
||||
|
||||
if (indexp) {
|
||||
*indexp = if_nametoindex(name);
|
||||
assert(*indexp > 0);
|
||||
}
|
||||
|
||||
if (macp) {
|
||||
s = socket(AF_INET, SOCK_DGRAM, 0);
|
||||
assert(s >= 0);
|
||||
|
||||
strncpy(ifr.ifr_name, name, l);
|
||||
r = ioctl(s, SIOCGIFHWADDR, &ifr);
|
||||
assert(r >= 0);
|
||||
|
||||
memcpy(macp->ether_addr_octet, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
|
||||
|
||||
close(s);
|
||||
}
|
||||
}
|
||||
|
||||
static inline void test_veth_cmd(int ifindex, const char *cmd) {
|
||||
char *p, name[IF_NAMESIZE + 1] = {};
|
||||
int r;
|
||||
|
||||
p = if_indextoname(ifindex, name);
|
||||
assert(p);
|
||||
|
||||
r = asprintf(&p, "ip link set %s %s", name, cmd);
|
||||
assert(r >= 0);
|
||||
|
||||
/* Again: Ewwww... */
|
||||
r = system(p);
|
||||
assert(r == 0);
|
||||
|
||||
free(p);
|
||||
}
|
||||
|
||||
static inline void test_veth_new(int *parent_indexp,
|
||||
struct ether_addr *parent_macp,
|
||||
int *child_indexp,
|
||||
struct ether_addr *child_macp) {
|
||||
int r;
|
||||
|
||||
/* Eww... but it works. */
|
||||
r = system("ip link add type veth");
|
||||
assert(r == 0);
|
||||
r = system("ip link set veth0 up");
|
||||
assert(r == 0);
|
||||
r = system("ip link set veth1 up");
|
||||
assert(r == 0);
|
||||
|
||||
test_if_query("veth0", parent_indexp, parent_macp);
|
||||
test_if_query("veth1", child_indexp, child_macp);
|
||||
}
|
||||
|
||||
static inline int test_setup(void) {
|
||||
int r;
|
||||
|
||||
r = unshare(CLONE_NEWNET);
|
||||
if (r < 0) {
|
||||
assert(errno == EPERM);
|
||||
return 77;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
1
shared/n-acd/subprojects/c-list
Submodule
1
shared/n-acd/subprojects/c-list
Submodule
|
@ -0,0 +1 @@
|
|||
Subproject commit 72c59181d677a3f50b201d51f190b1bff02d4279
|
1
shared/n-acd/subprojects/c-siphash
Submodule
1
shared/n-acd/subprojects/c-siphash
Submodule
|
@ -0,0 +1 @@
|
|||
Subproject commit e01ab640dcf72dfa6928c94a261bf78cd943d9c3
|
Loading…
Reference in a new issue