initial commit

This commit is contained in:
Neven Miculinic 2019-03-26 13:44:38 +01:00
parent 1bfd1766a7
commit f952657bc4
10 changed files with 522 additions and 0 deletions

67
.gitignore vendored
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@ -10,3 +10,70 @@
# Output of the go coverage tool, specifically when used with LiteIDE
*.out
# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and WebStorm
# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
# User-specific stuff
.idea/**/workspace.xml
.idea/**/tasks.xml
.idea/**/usage.statistics.xml
.idea/**/dictionaries
.idea/**/shelf
# Generated files
.idea/**/contentModel.xml
# Sensitive or high-churn files
.idea/**/dataSources/
.idea/**/dataSources.ids
.idea/**/dataSources.local.xml
.idea/**/sqlDataSources.xml
.idea/**/dynamic.xml
.idea/**/uiDesigner.xml
.idea/**/dbnavigator.xml
# Gradle
.idea/**/gradle.xml
.idea/**/libraries
# Gradle and Maven with auto-import
# When using Gradle or Maven with auto-import, you should exclude module files,
# since they will be recreated, and may cause churn. Uncomment if using
# auto-import.
# .idea/modules.xml
# .idea/*.iml
# .idea/modules
# CMake
cmake-build-*/
# Mongo Explorer plugin
.idea/**/mongoSettings.xml
# File-based project format
*.iws
# IntelliJ
out/
# mpeltonen/sbt-idea plugin
.idea_modules/
# JIRA plugin
atlassian-ide-plugin.xml
# Cursive Clojure plugin
.idea/replstate.xml
# Crashlytics plugin (for Android Studio and IntelliJ)
com_crashlytics_export_strings.xml
crashlytics.properties
crashlytics-build.properties
fabric.properties
# Editor-based Rest Client
.idea/httpRequests
# Android studio 3.1+ serialized cache file
.idea/caches/build_file_checksums.ser

4
.idea/encodings.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="Encoding" addBOMForNewFiles="with NO BOM" />
</project>

6
.idea/misc.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="JavaScriptSettings">
<option name="languageLevel" value="ES6" />
</component>
</project>

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.idea/modules.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/.idea/wg-quick-go.iml" filepath="$PROJECT_DIR$/.idea/wg-quick-go.iml" />
</modules>
</component>
</project>

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.idea/vcs.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$" vcs="Git" />
</component>
</project>

8
.idea/wg-quick-go.iml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<module type="WEB_MODULE" version="4">
<component name="NewModuleRootManager">
<content url="file://$MODULE_DIR$" />
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
</component>
</module>

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.pre-commit-config.yaml Normal file
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exclude: ".vscode/*"
repos:
- repo: https://github.com/pre-commit/pre-commit-hooks
rev: v2.1.0
hooks:
- id: check-added-large-files
- id: check-ast
- id: check-case-conflict
- id: check-json
- id: check-merge-conflict
- id: check-symlinks
- id: end-of-file-fixer
- id: pretty-format-json
args:
- --autofix
- id: requirements-txt-fixer
- id: trailing-whitespace
- id: detect-private-key
- repo: git://github.com/dnephin/pre-commit-golang
rev: v0.3.2
hooks:
- id: go-fmt

29
go.mod Normal file
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module github.com/nmiculinic/wg-quick-go
go 1.12
require (
github.com/KrakenSystems/wg-operator v0.0.0-20190326122344-c32b2bf8f73a
github.com/emicklei/go-restful v2.9.1+incompatible // indirect
github.com/go-openapi/spec v0.19.0 // indirect
github.com/gogo/protobuf v1.2.1 // indirect
github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf // indirect
github.com/json-iterator/go v1.1.6 // indirect
github.com/mdlayher/wireguardctrl v0.0.0-20190325182839-fcf15c501b90
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
github.com/modern-go/reflect2 v1.0.1 // indirect
github.com/onsi/ginkgo v1.8.0 // indirect
github.com/onsi/gomega v1.5.0 // indirect
github.com/sirupsen/logrus v1.4.0
github.com/spf13/pflag v1.0.3 // indirect
github.com/stretchr/testify v1.3.0
github.com/vishvananda/netlink v1.0.0
github.com/vishvananda/netns v0.0.0-20180720170159-13995c7128cc // indirect
gopkg.in/inf.v0 v0.9.1 // indirect
k8s.io/api v0.0.0-20190313115550-3c12c96769cc // indirect
k8s.io/apimachinery v0.0.0-20190323104403-03ac7a9ade42
k8s.io/klog v0.2.0 // indirect
k8s.io/kube-openapi v0.0.0-20190320154901-5e45bb682580 // indirect
sigs.k8s.io/controller-runtime v0.1.10 // indirect
sigs.k8s.io/yaml v1.1.0 // indirect
)

112
go.sum Normal file
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@ -0,0 +1,112 @@
github.com/KrakenSystems/wg-operator v0.0.0-20190326122344-c32b2bf8f73a h1:FUwaIyTLYJ2rJbH7/VrcDT673oW495PQ/5yhcnOY0Hs=
github.com/KrakenSystems/wg-operator v0.0.0-20190326122344-c32b2bf8f73a/go.mod h1:KbgWSIZ/HfS5PPTlVYMtcfPDaf6psweYj50kjvyRPiw=
github.com/PuerkitoBio/purell v1.1.0 h1:rmGxhojJlM0tuKtfdvliR84CFHljx9ag64t2xmVkjK4=
github.com/PuerkitoBio/purell v1.1.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV/sSk/8dngufqelfh6jnri85riMAaF/M=
github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/emicklei/go-restful v2.9.1+incompatible h1:TOKUBeOLGz/xFJ6a9bO8++X6xPN9HZR3LGv2RqnE6xM=
github.com/emicklei/go-restful v2.9.1+incompatible/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs=
github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/go-openapi/jsonpointer v0.17.0 h1:nH6xp8XdXHx8dqveo0ZuJBluCO2qGrPbDNZ0dwoRHP0=
github.com/go-openapi/jsonpointer v0.17.0/go.mod h1:cOnomiV+CVVwFLk0A/MExoFMjwdsUdVpsRhURCKh+3M=
github.com/go-openapi/jsonreference v0.17.0 h1:yJW3HCkTHg7NOA+gZ83IPHzUSnUzGXhGmsdiCcMexbA=
github.com/go-openapi/jsonreference v0.17.0/go.mod h1:g4xxGn04lDIRh0GJb5QlpE3HfopLOL6uZrK/VgnsK9I=
github.com/go-openapi/spec v0.19.0 h1:A4SZ6IWh3lnjH0rG0Z5lkxazMGBECtrZcbyYQi+64k4=
github.com/go-openapi/spec v0.19.0/go.mod h1:XkF/MOi14NmjsfZ8VtAKf8pIlbZzyoTvZsdfssdxcBI=
github.com/go-openapi/swag v0.17.0 h1:iqrgMg7Q7SvtbWLlltPrkMs0UBJI6oTSs79JFRUi880=
github.com/go-openapi/swag v0.17.0/go.mod h1:AByQ+nYG6gQg71GINrmuDXCPWdL640yX49/kXLo40Tg=
github.com/gogo/protobuf v1.2.1 h1:/s5zKNz0uPFCZ5hddgPdo2TK2TVrUNMn0OOX8/aZMTE=
github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/google/go-cmp v0.2.0 h1:+dTQ8DZQJz0Mb/HjFlkptS1FeQ4cWSnN941F8aEG4SQ=
github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf h1:+RRA9JqSOZFfKrOeqr2z77+8R2RKyh8PG66dcu1V0ck=
github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf/go.mod h1:HP5RmnzzSNb993RKQDq4+1A4ia9nllfqcQFTQJedwGI=
github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
github.com/json-iterator/go v1.1.6 h1:MrUvLMLTMxbqFJ9kzlvat/rYZqZnW3u4wkLzWTaFwKs=
github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/mailru/easyjson v0.0.0-20180823135443-60711f1a8329 h1:2gxZ0XQIU/5z3Z3bUBu+FXuk2pFbkN6tcwi/pjyaDic=
github.com/mailru/easyjson v0.0.0-20180823135443-60711f1a8329/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
github.com/mdlayher/genetlink v0.0.0-20190313224034-60417448a851 h1:QYJTEbSDJvDBQenHYMxoiBQPgZ4QUcm75vACe3dkW7o=
github.com/mdlayher/genetlink v0.0.0-20190313224034-60417448a851/go.mod h1:EsbsAEUEs15qC1cosAwxgCWV0Qhd8TmkxnA9Kw1Vhl4=
github.com/mdlayher/netlink v0.0.0-20190313131330-258ea9dff42c h1:qYXI+3AN4zBWsTF5drEu1akWPu2juaXPs58tZ4/GaCg=
github.com/mdlayher/netlink v0.0.0-20190313131330-258ea9dff42c/go.mod h1:eQB3mZE4aiYnlUsyGGCOpPETfdQq4Jhsgf1fk3cwQaA=
github.com/mdlayher/wireguardctrl v0.0.0-20190325182839-fcf15c501b90 h1:OgbuxwTPCoAmEheXwQANix39Z1QK+6mLjfP6qrtqsB0=
github.com/mdlayher/wireguardctrl v0.0.0-20190325182839-fcf15c501b90/go.mod h1:BdyuvE2RP0RjONNIBHLdaVM7iarlHbioRUbsVXeOAJM=
github.com/mikioh/ipaddr v0.0.0-20190227002745-725a6cbe920e h1:Pa/tBadWnc5p6P32+GcWt20TvPB9dqlDbBn81oWptqE=
github.com/mikioh/ipaddr v0.0.0-20190227002745-725a6cbe920e/go.mod h1:Ickgr2WtCLZ2MDGd4Gr0geeCH5HybhRJbonOgQpvSxc=
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
github.com/onsi/ginkgo v1.8.0 h1:VkHVNpR4iVnU8XQR6DBm8BqYjN7CRzw+xKUbVVbbW9w=
github.com/onsi/ginkgo v1.8.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
github.com/onsi/gomega v1.5.0 h1:izbySO9zDPmjJ8rDjLvkA2zJHIo+HkYXHnf7eN7SSyo=
github.com/onsi/gomega v1.5.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/sirupsen/logrus v1.4.0 h1:yKenngtzGh+cUSSh6GWbxW2abRqhYUSR/t/6+2QqNvE=
github.com/sirupsen/logrus v1.4.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
github.com/spf13/pflag v1.0.3 h1:zPAT6CGy6wXeQ7NtTnaTerfKOsV6V6F8agHXFiazDkg=
github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/vishvananda/netlink v1.0.0 h1:bqNY2lgheFIu1meHUFSH3d7vG93AFyqg3oGbJCOJgSM=
github.com/vishvananda/netlink v1.0.0/go.mod h1:+SR5DhBJrl6ZM7CoCKvpw5BKroDKQ+PJqOg65H/2ktk=
github.com/vishvananda/netns v0.0.0-20180720170159-13995c7128cc h1:R83G5ikgLMxrBvLh22JhdfI8K6YXEPHx5P03Uu3DRs4=
github.com/vishvananda/netns v0.0.0-20180720170159-13995c7128cc/go.mod h1:ZjcWmFBXmLKZu9Nxj3WKYEafiSqer2rnvPr0en9UNpI=
golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190313024323-a1f597ede03a h1:YX8ljsm6wXlHZO+aRz9Exqr0evNhKRNe5K/gi+zKh4U=
golang.org/x/crypto v0.0.0-20190313024323-a1f597ede03a/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181005035420-146acd28ed58/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190313220215-9f648a60d977 h1:actzWV6iWn3GLqN8dZjzsB+CLt+gaV2+wsxroxiQI8I=
golang.org/x/net v0.0.0-20190313220215-9f648a60d977/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f h1:wMNYb4v58l5UBM7MYRLPG6ZhfOqbKu7X5eyFl8ZhKvA=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190312061237-fead79001313 h1:pczuHS43Cp2ktBEEmLwScxgjWsBSzdaQiKzUyf3DTTc=
golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
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package wgctl
import (
"bytes"
"encoding/base64"
"github.com/mdlayher/wireguardctrl"
"github.com/mdlayher/wireguardctrl/wgtypes"
log "github.com/sirupsen/logrus"
"github.com/vishvananda/netlink"
"net"
"os/exec"
"syscall"
"text/template"
)
type Config struct {
wgtypes.Config
// Address — a comma-separated list of IP (v4 or v6) addresses (optionally with CIDR masks) to be assigned to the interface. May be specified multiple times.
Address []*net.IPNet
// — a comma-separated list of IP (v4 or v6) addresses to be set as the interfaces DNS servers. May be specified multiple times. Upon bringing the interface up, this runs resolvconf -a tun.INTERFACE -m 0 -x and upon bringing it down, this runs resolvconf -d tun.INTERFACE. If these particular invocations of resolvconf(8) are undesirable, the PostUp and PostDown keys below may be used instead.
DNS []net.IP
// — if not specified, the MTU is automatically determined from the endpoint addresses or the system default route, which is usually a sane choice. However, to manually specify an MTU to override this automatic discovery, this value may be specified explicitly.
MTU int
// Table — Controls the routing table to which routes are added. There are two special values: off disables the creation of routes altogether, and auto (the default) adds routes to the default table and enables special handling of default routes.
Table int
// PreUp, PostUp, PreDown, PostDown — script snippets which will be executed by bash(1) before/after setting up/tearing down the interface, most commonly used to configure custom DNS options or firewall rules. The special string %i is expanded to INTERFACE. Each one may be specified multiple times, in which case the commands are executed in order.
PreUp string
PostUp string
PreDown string
PostDown string
// SaveConfig — if set to true, the configuration is saved from the current state of the interface upon shutdown.
SaveConfig bool
}
func (cfg *Config) String() string {
b, err := cfg.MarshalText()
if err != nil {
panic(err)
}
return string(b)
}
func (cfg *Config) MarshalText() (text []byte, err error) {
buff := &bytes.Buffer{}
if err := cfgTemplate.Execute(buff, cfg); err != nil {
return nil, err
}
return buff.Bytes(), nil
}
const wgtypeTemplateSpec = `[Interface]
{{- range := .Address }}
Address = {{ . }}
{{ end }}
{{- range := .DNS }}
DNS = {{ . }}
{{ end }}
PrivateKey = {{ .PrivateKey | wgKey }}
{{- if .ListenPort }}{{ "\n" }}ListenPort = {{ .ListenPort }}{{ end }}
{{- if .MTU }}{{ "\n" }}MTU = {{ .MTU }}{{ end }}
{{- if .Table }}{{ "\n" }}Table = {{ .Table }}{{ end }}
{{- if .PreUp }}{{ "\n" }}PreUp = {{ .PreUp }}{{ end }}
{{- if .PostUp }}{{ "\n" }}Table = {{ .Table }}{{ end }}
{{- if .PreDown }}{{ "\n" }}PreDown = {{ .PreDown }}{{ end }}
{{- if .PostDown }}{{ "\n" }}PostDown = {{ .PostDown }}{{ end }}
{{- if .SaveConfig }}{{ "\n" }}SaveConfig = {{ .SaveConfig }}{{ end }}
{{- range .Peers }}
[Peer]
PublicKey = {{ .PublicKey | wgKey }}
AllowedIps = {{ range $i, $el := .AllowedIPs }}{{if $i}}, {{ end }}{{ $el }}{{ end }}
{{- if .Endpoint }}{{ "\n" }}Endpoint = {{ .Endpoint }}{{ end }}
{{- end }}
`
func serializeKey(key *wgtypes.Key) string {
return base64.StdEncoding.EncodeToString(key[:])
}
func ParseKey(key string) (wgtypes.Key, error) {
var pkey wgtypes.Key
pkeySlice, err := base64.StdEncoding.DecodeString(key)
if err != nil {
return pkey, err
}
copy(pkey[:], pkeySlice[:])
return pkey, nil
}
var cfgTemplate = template.Must(
template.
New("wg-cfg").
Funcs(template.FuncMap(map[string]interface{}{"wgKey": serializeKey})).
Parse(wgtypeTemplateSpec))
func (cfg *Config) Up(iface string) error {
link, err := netlink.LinkByName(iface)
if err != nil {
if _, ok := err.(netlink.LinkNotFoundError); !ok {
log.Error(err, "cannot read link, probably doesn't exist")
return err
}
log.Info("link not found, creating")
wgLink := &netlink.GenericLink{
LinkAttrs: netlink.LinkAttrs{
Name: iface,
},
LinkType: "wireguard",
}
if err := netlink.LinkAdd(wgLink); err != nil {
log.Error(err, "cannot create link", "iface", iface)
return err
}
if err := exec.Command("ip", "link", "add", "dev", iface, "type", "wireguard").Run(); err != nil {
}
link, err = netlink.LinkByName(iface)
if err != nil {
log.Error(err, "cannot read link")
return err
}
}
log.Info("link", "type", link.Type(), "attrs", link.Attrs())
if err := netlink.LinkSetUp(link); err != nil {
log.Error(err, "cannot set link up", "type", link.Type(), "attrs", link.Attrs())
return err
}
log.Info("set device up", "iface", iface)
cl, err := wireguardctrl.New()
if err != nil {
log.Error(err, "cannot setup wireguard device")
return err
}
if err := cl.ConfigureDevice(iface, cfg.Config); err != nil {
log.Error(err, "cannot configure device", "iface", iface)
return err
}
if err := syncAddress(link, cfg); err != nil {
log.Error(err, "cannot sync addresses")
return err
}
if err := syncRoutes(link, cfg); err != nil {
log.Error(err, "cannot sync routes")
return err
}
log.Info("Successfully setup device", "iface", iface)
return nil
}
func syncAddress(link netlink.Link, cfg *Config) error {
addrs, err := netlink.AddrList(link, syscall.AF_INET)
if err != nil {
log.Error(err, "cannot read link address")
return err
}
presentAddresses := make(map[string]int, 0)
for _, addr := range addrs {
presentAddresses[addr.IPNet.String()] = 1
}
for _, addr := range cfg.Address {
_, present := presentAddresses[addr.String()]
presentAddresses[addr.String()] = 2
if present {
log.Info("address present", "addr", addr, "iface", link.Attrs().Name)
continue
}
if err := netlink.AddrAdd(link, &netlink.Addr{
IPNet: addr,
}); err != nil {
log.Error(err, "cannot add addr", "iface", link.Attrs().Name)
return err
}
log.Info("address added", "addr", addr, "iface", link.Attrs().Name)
}
for addr, p := range presentAddresses {
if p < 2 {
nlAddr, err := netlink.ParseAddr(addr)
if err != nil {
log.Error(err, "cannot parse del addr", "iface", link.Attrs().Name, "addr", addr)
return err
}
if err := netlink.AddrAdd(link, nlAddr); err != nil {
log.Error(err, "cannot delete addr", "iface", link.Attrs().Name, "addr", addr)
return err
}
log.Info("address deleted", "addr", addr, "iface", link.Attrs().Name)
}
}
return nil
}
func syncRoutes(link netlink.Link, cfg *Config) error {
routes, err := netlink.RouteList(link, syscall.AF_INET)
if err != nil {
log.Error(err, "cannot read existing routes")
return err
}
presentRoutes := make(map[string]int, 0)
for _, r := range routes {
presentRoutes[r.Dst.String()] = 1
}
for _, peer := range cfg.Peers {
for _, rt := range peer.AllowedIPs {
_, present := presentRoutes[rt.String()]
presentRoutes[rt.String()] = 2
if present {
log.Info("route present", "iface", link.Attrs().Name, "route", rt.String())
continue
}
if err := netlink.RouteAdd(&netlink.Route{
LinkIndex: link.Attrs().Index,
Dst: &rt,
}); err != nil {
log.Error(err, "cannot setup route", "iface", link.Attrs().Name, "route", rt.String())
return err
}
log.Info("route added", "iface", link.Attrs().Name, "route", rt.String())
}
}
// Clean extra routes
for rtStr, p := range presentRoutes {
_, rt, err := net.ParseCIDR(rtStr)
if err != nil {
log.Info("cannot parse route", "iface", link.Attrs().Name, "route", rtStr)
return err
}
if p < 2 {
log.Info("extra manual route found", "iface", link.Attrs().Name, "route", rt.String())
if err := netlink.RouteDel(&netlink.Route{
LinkIndex: link.Attrs().Index,
Dst: rt,
}); err != nil {
log.Error(err, "cannot setup route", "iface", link.Attrs().Name, "route", rt.String())
return err
}
log.Info("route deleted", "iface", link.Attrs().Name, "route", rt)
}
}
return nil
}