mirror of
https://github.com/cwinfo/yggdrasil-go.git
synced 2024-12-26 21:45:41 +00:00
Neil Alexander
GitHub
commit
009d9c9ec0
21
CHANGELOG.md
21
CHANGELOG.md
@ -25,6 +25,25 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
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- in case of vulnerabilities.
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-->
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## [0.3.7] - 2019-08-14
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### Changed
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- The switch should now forward packets along a single path more consistently in cases where congestion is low and multiple equal-length paths exist, which should improve stability and result in fewer out-of-order packets
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- Sessions should now be more tolerant of out-of-order packets, by replacing a bitmask with a variable sized heap+map structure to track recently received nonces, which should reduce the number of packets dropped due to reordering when multiple paths are used or multiple independent flows are transmitted through the same session
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- The admin socket can no longer return a dotfile representation of the known parts of the network, this could be rebuilt by clients using information from `getSwitchPeers`,`getDHT` and `getSessions`
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### Fixed
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- A number of significant performance regressions introduced in version 0.3.6 have been fixed, resulting in better performance
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- Flow labels are now used to prioritise traffic flows again correctly
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- In low-traffic scenarios where there are multiple peerings between a pair of nodes, Yggdrasil now prefers the most active peering instead of the least active, helping to reduce packet reordering
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- The `Listen` statement, when configured as a string rather than an array, will now be parsed correctly
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- The admin socket now returns `coords` as a correct array of unsigned 64-bit integers, rather than the internal representation
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- The admin socket now returns `box_pub_key` in string format again
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- Sessions no longer leak/block when no listener (e.g. TUN/TAP) is configured
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- Incoming session connections no longer block when a session already exists, which results in less leaked goroutines
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- Flooded sessions will no longer block other sessions
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- Searches are now cleaned up properly and a couple of edge-cases with duplicate searches have been fixed
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- A number of minor allocation and pointer fixes
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## [0.3.6] - 2019-08-03
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### Added
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- Yggdrasil now has a public API with interfaces such as `yggdrasil.ConnDialer`, `yggdrasil.ConnListener` and `yggdrasil.Conn` for using Yggdrasil as a transport directly within applications
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@ -53,7 +72,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
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- Session MTUs are now always calculated correctly, in some cases they were incorrectly defaulting to 1280 before
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- Multiple searches now don't take place for a single connection
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- Concurrency bugs fixed
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- Fixed a number of bugs in the ICMPv6 neighbor solicitation in the TUN/TAP code
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- Fixed a number of bugs in the ICMPv6 neighbor solicitation in the TUN/TAP code
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- A case where peers weren't always added correctly if one or more peers were unreachable has been fixed
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- Searches which include the local node are now handled correctly
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- Lots of small bug tweaks and clean-ups throughout the codebase
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@ -49,7 +49,7 @@ You may also find other platform-specific wrappers, scripts or tools in the
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If you want to build from source, as opposed to installing one of the pre-built
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packages:
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1. Install [Go](https://golang.org) (requires Go 1.11 or later)
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1. Install [Go](https://golang.org) (requires Go 1.12 or later)
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2. Clone this repository
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2. Run `./build`
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2
build
2
build
@ -2,7 +2,7 @@
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set -ef
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PKGSRC=${PKGSRC:-github.com/yggdrasil-network/yggdrasil-go/src/yggdrasil}
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PKGSRC=${PKGSRC:-github.com/yggdrasil-network/yggdrasil-go/src/version}
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PKGNAME=${PKGNAME:-$(sh contrib/semver/name.sh)}
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PKGVER=${PKGVER:-$(sh contrib/semver/version.sh --bare)}
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@ -25,6 +25,7 @@ import (
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"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
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"github.com/yggdrasil-network/yggdrasil-go/src/multicast"
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"github.com/yggdrasil-network/yggdrasil-go/src/tuntap"
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"github.com/yggdrasil-network/yggdrasil-go/src/version"
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"github.com/yggdrasil-network/yggdrasil-go/src/yggdrasil"
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)
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@ -74,6 +75,12 @@ func readConfig(useconf *bool, useconffile *string, normaliseconf *bool) *config
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if err := hjson.Unmarshal(conf, &dat); err != nil {
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panic(err)
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}
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// Check for fields that have changed type recently, e.g. the Listen config
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// option is now a []string rather than a string
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if listen, ok := dat["Listen"].(string); ok {
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dat["Listen"] = []string{listen}
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}
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// Sanitise the config
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confJson, err := json.Marshal(dat)
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if err != nil {
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panic(err)
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@ -113,7 +120,7 @@ func main() {
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normaliseconf := flag.Bool("normaliseconf", false, "use in combination with either -useconf or -useconffile, outputs your configuration normalised")
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confjson := flag.Bool("json", false, "print configuration from -genconf or -normaliseconf as JSON instead of HJSON")
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autoconf := flag.Bool("autoconf", false, "automatic mode (dynamic IP, peer with IPv6 neighbors)")
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version := flag.Bool("version", false, "prints the version of this build")
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ver := flag.Bool("version", false, "prints the version of this build")
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logging := flag.String("logging", "info,warn,error", "comma-separated list of logging levels to enable")
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logto := flag.String("logto", "stdout", "file path to log to, \"syslog\" or \"stdout\"")
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flag.Parse()
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@ -121,10 +128,10 @@ func main() {
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var cfg *config.NodeConfig
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var err error
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switch {
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case *version:
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fmt.Println("Build name:", yggdrasil.BuildName())
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fmt.Println("Build version:", yggdrasil.BuildVersion())
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os.Exit(0)
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case *ver:
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fmt.Println("Build name:", version.BuildName())
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fmt.Println("Build version:", version.BuildVersion())
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return
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case *autoconf:
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// Use an autoconf-generated config, this will give us random keys and
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// port numbers, and will use an automatically selected TUN/TAP interface.
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@ -168,7 +175,7 @@ func main() {
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case "stdout":
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logger = log.New(os.Stdout, "", log.Flags())
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case "syslog":
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if syslogger, err := gsyslog.NewLogger(gsyslog.LOG_NOTICE, "DAEMON", yggdrasil.BuildName()); err == nil {
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if syslogger, err := gsyslog.NewLogger(gsyslog.LOG_NOTICE, "DAEMON", version.BuildName()); err == nil {
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logger = log.New(syslogger, "", log.Flags())
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}
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default:
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@ -19,6 +19,7 @@ import (
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"github.com/hjson/hjson-go"
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"github.com/yggdrasil-network/yggdrasil-go/src/defaults"
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"github.com/yggdrasil-network/yggdrasil-go/src/version"
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)
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type admin_info map[string]interface{}
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@ -53,9 +54,17 @@ func main() {
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server := flag.String("endpoint", endpoint, "Admin socket endpoint")
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injson := flag.Bool("json", false, "Output in JSON format (as opposed to pretty-print)")
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verbose := flag.Bool("v", false, "Verbose output (includes public keys)")
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ver := flag.Bool("version", false, "Prints the version of this build")
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flag.Parse()
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args := flag.Args()
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if *ver {
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fmt.Println("Build name:", version.BuildName())
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fmt.Println("Build version:", version.BuildVersion())
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fmt.Println("To get the version number of the running Yggdrasil node, run", os.Args[0], "getSelf")
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return
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}
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if len(args) == 0 {
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flag.Usage()
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return
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10
go.mod
10
go.mod
@ -8,10 +8,12 @@ require (
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github.com/kardianos/minwinsvc v0.0.0-20151122163309-cad6b2b879b0
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github.com/mitchellh/mapstructure v1.1.2
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github.com/songgao/packets v0.0.0-20160404182456-549a10cd4091
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github.com/yggdrasil-network/water v0.0.0-20190725123504-a16161896c34
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github.com/vishvananda/netlink v1.0.0
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github.com/vishvananda/netns v0.0.0-20190625233234-7109fa855b0f // indirect
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github.com/yggdrasil-network/water v0.0.0-20190812103929-c83fe40250f8
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golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4
|
||||
golang.org/x/net v0.0.0-20190724013045-ca1201d0de80
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||||
golang.org/x/sys v0.0.0-20190801041406-cbf593c0f2f3
|
||||
golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7
|
||||
golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a
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||||
golang.org/x/text v0.3.2
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golang.org/x/tools v0.0.0-20190802003818-e9bb7d36c060 // indirect
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golang.org/x/tools v0.0.0-20190814171936-5b18234b3ae0 // indirect
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)
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15
go.sum
15
go.sum
@ -12,6 +12,10 @@ github.com/mitchellh/mapstructure v1.1.2 h1:fmNYVwqnSfB9mZU6OS2O6GsXM+wcskZDuKQz
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github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
|
||||
github.com/songgao/packets v0.0.0-20160404182456-549a10cd4091 h1:1zN6ImoqhSJhN8hGXFaJlSC8msLmIbX8bFqOfWLKw0w=
|
||||
github.com/songgao/packets v0.0.0-20160404182456-549a10cd4091/go.mod h1:N20Z5Y8oye9a7HmytmZ+tr8Q2vlP0tAHP13kTHzwvQY=
|
||||
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 v0.0.0-20190625233234-7109fa855b0f h1:nBX3nTcmxEtHSERBJaIo1Qa26VwRaopnZmfDQUXsF4I=
|
||||
github.com/vishvananda/netns v0.0.0-20190625233234-7109fa855b0f/go.mod h1:ZjcWmFBXmLKZu9Nxj3WKYEafiSqer2rnvPr0en9UNpI=
|
||||
github.com/yggdrasil-network/water v0.0.0-20180615095340-f732c88f34ae h1:MYCANF1kehCG6x6G+/9txLfq6n3lS5Vp0Mxn1hdiBAc=
|
||||
github.com/yggdrasil-network/water v0.0.0-20180615095340-f732c88f34ae/go.mod h1:R0SBCsugm+Sf1katgTb2t7GXMm+nRIv43tM4VDZbaOs=
|
||||
github.com/yggdrasil-network/water v0.0.0-20190719211521-a76871ea954b/go.mod h1:R0SBCsugm+Sf1katgTb2t7GXMm+nRIv43tM4VDZbaOs=
|
||||
@ -22,6 +26,8 @@ github.com/yggdrasil-network/water v0.0.0-20190725073841-250edb919f8a h1:mQ0mPD+
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||||
github.com/yggdrasil-network/water v0.0.0-20190725073841-250edb919f8a/go.mod h1:R0SBCsugm+Sf1katgTb2t7GXMm+nRIv43tM4VDZbaOs=
|
||||
github.com/yggdrasil-network/water v0.0.0-20190725123504-a16161896c34 h1:Qh5FE+Q5iGqpmR/FPMYHuoZLN921au/nxAlmKe+Hdbo=
|
||||
github.com/yggdrasil-network/water v0.0.0-20190725123504-a16161896c34/go.mod h1:R0SBCsugm+Sf1katgTb2t7GXMm+nRIv43tM4VDZbaOs=
|
||||
github.com/yggdrasil-network/water v0.0.0-20190812103929-c83fe40250f8 h1:YY9Pg2BEp0jeUVU60svTOaDr+fs1ySC9RbdC1Qc6wOw=
|
||||
github.com/yggdrasil-network/water v0.0.0-20190812103929-c83fe40250f8/go.mod h1:R0SBCsugm+Sf1katgTb2t7GXMm+nRIv43tM4VDZbaOs=
|
||||
golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9 h1:mKdxBk7AujPs8kU4m80U72y/zjbZ3UcXC7dClwKbUI0=
|
||||
golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
|
||||
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
|
||||
@ -34,6 +40,8 @@ golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLL
|
||||
golang.org/x/net v0.0.0-20190628185345-da137c7871d7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
||||
golang.org/x/net v0.0.0-20190724013045-ca1201d0de80 h1:Ao/3l156eZf2AW5wK8a7/smtodRU+gha3+BeqJ69lRk=
|
||||
golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
||||
golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7 h1:fHDIZ2oxGnUZRN6WgWFCbYBjH9uqVPRCUVUDhs0wnbA=
|
||||
golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
|
||||
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sys v0.0.0-20181206074257-70b957f3b65e h1:njOxP/wVblhCLIUhjHXf6X+dzTt5OQ3vMQo9mkOIKIo=
|
||||
golang.org/x/sys v0.0.0-20181206074257-70b957f3b65e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
|
||||
@ -44,6 +52,10 @@ golang.org/x/sys v0.0.0-20190712062909-fae7ac547cb7/go.mod h1:h1NjWce9XRLGQEsW7w
|
||||
golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20190801041406-cbf593c0f2f3 h1:4y9KwBHBgBNwDbtu44R5o1fdOCQUEXhbk/P4A9WmJq0=
|
||||
golang.org/x/sys v0.0.0-20190801041406-cbf593c0f2f3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20190812073006-9eafafc0a87e h1:TsjK5I7fXk8f2FQrgu6NS7i5Qih3knl2FL1htyguLRE=
|
||||
golang.org/x/sys v0.0.0-20190812073006-9eafafc0a87e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a h1:aYOabOQFp6Vj6W1F80affTUvO9UxmJRx8K0gsfABByQ=
|
||||
golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/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/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
|
||||
@ -53,3 +65,6 @@ golang.org/x/tools v0.0.0-20190719005602-e377ae9d6386/go.mod h1:jcCCGcm9btYwXyDq
|
||||
golang.org/x/tools v0.0.0-20190724185037-8aa4eac1a7c1/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI=
|
||||
golang.org/x/tools v0.0.0-20190729092621-ff9f1409240a/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI=
|
||||
golang.org/x/tools v0.0.0-20190802003818-e9bb7d36c060/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI=
|
||||
golang.org/x/tools v0.0.0-20190809145639-6d4652c779c4/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
|
||||
golang.org/x/tools v0.0.0-20190814171936-5b18234b3ae0/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
|
||||
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
|
||||
|
||||
@ -17,6 +17,8 @@ import (
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/address"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/config"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/util"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/version"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/yggdrasil"
|
||||
)
|
||||
|
||||
@ -78,11 +80,6 @@ func (a *AdminSocket) Init(c *yggdrasil.Core, state *config.NodeState, log *log.
|
||||
}
|
||||
return Info{"list": handlers}, nil
|
||||
})
|
||||
/*
|
||||
a.AddHandler("dot", []string{}, func(in Info) (Info, error) {
|
||||
return Info{"dot": string(a.getResponse_dot())}, nil
|
||||
})
|
||||
*/
|
||||
a.AddHandler("getSelf", []string{}, func(in Info) (Info, error) {
|
||||
ip := c.Address().String()
|
||||
subnet := c.Subnet()
|
||||
@ -90,8 +87,8 @@ func (a *AdminSocket) Init(c *yggdrasil.Core, state *config.NodeState, log *log.
|
||||
"self": Info{
|
||||
ip: Info{
|
||||
"box_pub_key": c.EncryptionPublicKey(),
|
||||
"build_name": yggdrasil.BuildName(),
|
||||
"build_version": yggdrasil.BuildVersion(),
|
||||
"build_name": version.BuildName(),
|
||||
"build_version": version.BuildVersion(),
|
||||
"coords": fmt.Sprintf("%v", c.Coords()),
|
||||
"subnet": subnet.String(),
|
||||
},
|
||||
@ -110,7 +107,7 @@ func (a *AdminSocket) Init(c *yggdrasil.Core, state *config.NodeState, log *log.
|
||||
"bytes_recvd": p.BytesRecvd,
|
||||
"proto": p.Protocol,
|
||||
"endpoint": p.Endpoint,
|
||||
"box_pub_key": p.PublicKey,
|
||||
"box_pub_key": hex.EncodeToString(p.PublicKey[:]),
|
||||
}
|
||||
}
|
||||
return Info{"peers": peers}, nil
|
||||
@ -128,7 +125,7 @@ func (a *AdminSocket) Init(c *yggdrasil.Core, state *config.NodeState, log *log.
|
||||
"bytes_recvd": s.BytesRecvd,
|
||||
"proto": s.Protocol,
|
||||
"endpoint": s.Endpoint,
|
||||
"box_pub_key": s.PublicKey,
|
||||
"box_pub_key": hex.EncodeToString(s.PublicKey[:]),
|
||||
}
|
||||
}
|
||||
return Info{"switchpeers": switchpeers}, nil
|
||||
@ -147,7 +144,7 @@ func (a *AdminSocket) Init(c *yggdrasil.Core, state *config.NodeState, log *log.
|
||||
dht[so] = Info{
|
||||
"coords": fmt.Sprintf("%v", d.Coords),
|
||||
"last_seen": d.LastSeen.Seconds(),
|
||||
"box_pub_key": d.PublicKey,
|
||||
"box_pub_key": hex.EncodeToString(d.PublicKey[:]),
|
||||
}
|
||||
}
|
||||
return Info{"dht": dht}, nil
|
||||
@ -164,7 +161,7 @@ func (a *AdminSocket) Init(c *yggdrasil.Core, state *config.NodeState, log *log.
|
||||
"mtu": s.MTU,
|
||||
"uptime": s.Uptime.Seconds(),
|
||||
"was_mtu_fixed": s.WasMTUFixed,
|
||||
"box_pub_key": s.PublicKey,
|
||||
"box_pub_key": hex.EncodeToString(s.PublicKey[:]),
|
||||
}
|
||||
}
|
||||
return Info{"sessions": sessions}, nil
|
||||
@ -243,31 +240,46 @@ func (a *AdminSocket) Init(c *yggdrasil.Core, state *config.NodeState, log *log.
|
||||
}
|
||||
})
|
||||
a.AddHandler("dhtPing", []string{"box_pub_key", "coords", "[target]"}, func(in Info) (Info, error) {
|
||||
var reserr error
|
||||
var result yggdrasil.DHTRes
|
||||
if in["target"] == nil {
|
||||
in["target"] = "none"
|
||||
}
|
||||
result, err := a.core.DHTPing(in["box_pub_key"].(string), in["coords"].(string), in["target"].(string))
|
||||
if err == nil {
|
||||
infos := make(map[string]map[string]string, len(result.Infos))
|
||||
for _, dinfo := range result.Infos {
|
||||
info := map[string]string{
|
||||
"box_pub_key": hex.EncodeToString(dinfo.PublicKey[:]),
|
||||
"coords": fmt.Sprintf("%v", dinfo.Coords),
|
||||
}
|
||||
addr := net.IP(address.AddrForNodeID(crypto.GetNodeID(&dinfo.PublicKey))[:]).String()
|
||||
infos[addr] = info
|
||||
coords := util.DecodeCoordString(in["coords"].(string))
|
||||
var boxPubKey crypto.BoxPubKey
|
||||
if b, err := hex.DecodeString(in["box_pub_key"].(string)); err == nil {
|
||||
copy(boxPubKey[:], b[:])
|
||||
if n, err := hex.DecodeString(in["target"].(string)); err == nil {
|
||||
var targetNodeID crypto.NodeID
|
||||
copy(targetNodeID[:], n[:])
|
||||
result, reserr = a.core.DHTPing(boxPubKey, coords, &targetNodeID)
|
||||
} else {
|
||||
result, reserr = a.core.DHTPing(boxPubKey, coords, nil)
|
||||
}
|
||||
return Info{"nodes": infos}, nil
|
||||
} else {
|
||||
return Info{}, err
|
||||
}
|
||||
if reserr != nil {
|
||||
return Info{}, reserr
|
||||
}
|
||||
infos := make(map[string]map[string]string, len(result.Infos))
|
||||
for _, dinfo := range result.Infos {
|
||||
info := map[string]string{
|
||||
"box_pub_key": hex.EncodeToString(dinfo.PublicKey[:]),
|
||||
"coords": fmt.Sprintf("%v", dinfo.Coords),
|
||||
}
|
||||
addr := net.IP(address.AddrForNodeID(crypto.GetNodeID(&dinfo.PublicKey))[:]).String()
|
||||
infos[addr] = info
|
||||
}
|
||||
return Info{"nodes": infos}, nil
|
||||
})
|
||||
a.AddHandler("getNodeInfo", []string{"[box_pub_key]", "[coords]", "[nocache]"}, func(in Info) (Info, error) {
|
||||
var nocache bool
|
||||
if in["nocache"] != nil {
|
||||
nocache = in["nocache"].(string) == "true"
|
||||
}
|
||||
var box_pub_key, coords string
|
||||
var boxPubKey crypto.BoxPubKey
|
||||
var coords []uint64
|
||||
if in["box_pub_key"] == nil && in["coords"] == nil {
|
||||
nodeinfo := a.core.MyNodeInfo()
|
||||
var jsoninfo interface{}
|
||||
@ -279,10 +291,14 @@ func (a *AdminSocket) Init(c *yggdrasil.Core, state *config.NodeState, log *log.
|
||||
} else if in["box_pub_key"] == nil || in["coords"] == nil {
|
||||
return Info{}, errors.New("Expecting both box_pub_key and coords")
|
||||
} else {
|
||||
box_pub_key = in["box_pub_key"].(string)
|
||||
coords = in["coords"].(string)
|
||||
if b, err := hex.DecodeString(in["box_pub_key"].(string)); err == nil {
|
||||
copy(boxPubKey[:], b[:])
|
||||
} else {
|
||||
return Info{}, err
|
||||
}
|
||||
coords = util.DecodeCoordString(in["coords"].(string))
|
||||
}
|
||||
result, err := a.core.GetNodeInfo(box_pub_key, coords, nocache)
|
||||
result, err := a.core.GetNodeInfo(boxPubKey, coords, nocache)
|
||||
if err == nil {
|
||||
var m map[string]interface{}
|
||||
if err = json.Unmarshal(result, &m); err == nil {
|
||||
@ -472,133 +488,3 @@ func (a *AdminSocket) handleRequest(conn net.Conn) {
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// getResponse_dot returns a response for a graphviz dot formatted
|
||||
// representation of the known parts of the network. This is color-coded and
|
||||
// labeled, and includes the self node, switch peers, nodes known to the DHT,
|
||||
// and nodes with open sessions. The graph is structured as a tree with directed
|
||||
// links leading away from the root.
|
||||
/*
|
||||
func (a *AdminSocket) getResponse_dot() []byte {
|
||||
//self := a.getData_getSelf()
|
||||
peers := a.core.GetSwitchPeers()
|
||||
dht := a.core.GetDHT()
|
||||
sessions := a.core.GetSessions()
|
||||
// Start building a tree from all known nodes
|
||||
type nodeInfo struct {
|
||||
name string
|
||||
key string
|
||||
parent string
|
||||
port uint64
|
||||
options string
|
||||
}
|
||||
infos := make(map[string]nodeInfo)
|
||||
// Get coords as a slice of strings, FIXME? this looks very fragile
|
||||
coordSlice := func(coords string) []string {
|
||||
tmp := strings.Replace(coords, "[", "", -1)
|
||||
tmp = strings.Replace(tmp, "]", "", -1)
|
||||
return strings.Split(tmp, " ")
|
||||
}
|
||||
// First fill the tree with all known nodes, no parents
|
||||
addInfo := func(nodes []admin_nodeInfo, options string, tag string) {
|
||||
for _, node := range nodes {
|
||||
n := node.asMap()
|
||||
info := nodeInfo{
|
||||
key: n["coords"].(string),
|
||||
options: options,
|
||||
}
|
||||
if len(tag) > 0 {
|
||||
info.name = fmt.Sprintf("%s\n%s", n["ip"].(string), tag)
|
||||
} else {
|
||||
info.name = n["ip"].(string)
|
||||
}
|
||||
coordsSplit := coordSlice(info.key)
|
||||
if len(coordsSplit) != 0 {
|
||||
portStr := coordsSplit[len(coordsSplit)-1]
|
||||
portUint, err := strconv.ParseUint(portStr, 10, 64)
|
||||
if err == nil {
|
||||
info.port = portUint
|
||||
}
|
||||
}
|
||||
infos[info.key] = info
|
||||
}
|
||||
}
|
||||
addInfo(dht, "fillcolor=\"#ffffff\" style=filled fontname=\"sans serif\"", "Known in DHT") // white
|
||||
addInfo(sessions, "fillcolor=\"#acf3fd\" style=filled fontname=\"sans serif\"", "Open session") // blue
|
||||
addInfo(peers, "fillcolor=\"#ffffb5\" style=filled fontname=\"sans serif\"", "Connected peer") // yellow
|
||||
addInfo(append([]admin_nodeInfo(nil), *self), "fillcolor=\"#a5ff8a\" style=filled fontname=\"sans serif\"", "This node") // green
|
||||
// Now go through and create placeholders for any missing nodes
|
||||
for _, info := range infos {
|
||||
// This is ugly string manipulation
|
||||
coordsSplit := coordSlice(info.key)
|
||||
for idx := range coordsSplit {
|
||||
key := fmt.Sprintf("[%v]", strings.Join(coordsSplit[:idx], " "))
|
||||
newInfo, isIn := infos[key]
|
||||
if isIn {
|
||||
continue
|
||||
}
|
||||
newInfo.name = "?"
|
||||
newInfo.key = key
|
||||
newInfo.options = "fontname=\"sans serif\" style=dashed color=\"#999999\" fontcolor=\"#999999\""
|
||||
|
||||
coordsSplit := coordSlice(newInfo.key)
|
||||
if len(coordsSplit) != 0 {
|
||||
portStr := coordsSplit[len(coordsSplit)-1]
|
||||
portUint, err := strconv.ParseUint(portStr, 10, 64)
|
||||
if err == nil {
|
||||
newInfo.port = portUint
|
||||
}
|
||||
}
|
||||
|
||||
infos[key] = newInfo
|
||||
}
|
||||
}
|
||||
// Now go through and attach parents
|
||||
for _, info := range infos {
|
||||
pSplit := coordSlice(info.key)
|
||||
if len(pSplit) > 0 {
|
||||
pSplit = pSplit[:len(pSplit)-1]
|
||||
}
|
||||
info.parent = fmt.Sprintf("[%v]", strings.Join(pSplit, " "))
|
||||
infos[info.key] = info
|
||||
}
|
||||
// Finally, get a sorted list of keys, which we use to organize the output
|
||||
var keys []string
|
||||
for _, info := range infos {
|
||||
keys = append(keys, info.key)
|
||||
}
|
||||
// sort
|
||||
sort.SliceStable(keys, func(i, j int) bool {
|
||||
return keys[i] < keys[j]
|
||||
})
|
||||
sort.SliceStable(keys, func(i, j int) bool {
|
||||
return infos[keys[i]].port < infos[keys[j]].port
|
||||
})
|
||||
// Now print it all out
|
||||
var out []byte
|
||||
put := func(s string) {
|
||||
out = append(out, []byte(s)...)
|
||||
}
|
||||
put("digraph {\n")
|
||||
// First set the labels
|
||||
for _, key := range keys {
|
||||
info := infos[key]
|
||||
put(fmt.Sprintf("\"%v\" [ label = \"%v\" %v ];\n", info.key, info.name, info.options))
|
||||
}
|
||||
// Then print the tree structure
|
||||
for _, key := range keys {
|
||||
info := infos[key]
|
||||
if info.key == info.parent {
|
||||
continue
|
||||
} // happens for the root, skip it
|
||||
port := fmt.Sprint(info.port)
|
||||
style := "fontname=\"sans serif\""
|
||||
if infos[info.parent].name == "?" || infos[info.key].name == "?" {
|
||||
style = "fontname=\"sans serif\" style=dashed color=\"#999999\" fontcolor=\"#999999\""
|
||||
}
|
||||
put(fmt.Sprintf(" \"%+v\" -> \"%+v\" [ label = \"%v\" %s ];\n", info.parent, info.key, port, style))
|
||||
}
|
||||
put("}\n")
|
||||
return out
|
||||
}
|
||||
*/
|
||||
|
||||
@ -53,15 +53,14 @@ func (s *tunConn) reader() (err error) {
|
||||
}
|
||||
s.tun.log.Debugln("Starting conn reader for", s.conn.String())
|
||||
defer s.tun.log.Debugln("Stopping conn reader for", s.conn.String())
|
||||
var n int
|
||||
b := make([]byte, 65535)
|
||||
for {
|
||||
select {
|
||||
case <-s.stop:
|
||||
return nil
|
||||
default:
|
||||
}
|
||||
if n, err = s.conn.Read(b); err != nil {
|
||||
var bs []byte
|
||||
if bs, err = s.conn.ReadNoCopy(); err != nil {
|
||||
if e, eok := err.(yggdrasil.ConnError); eok && !e.Temporary() {
|
||||
if e.Closed() {
|
||||
s.tun.log.Debugln(s.conn.String(), "TUN/TAP conn read debug:", err)
|
||||
@ -70,14 +69,11 @@ func (s *tunConn) reader() (err error) {
|
||||
}
|
||||
return e
|
||||
}
|
||||
} else if n > 0 {
|
||||
bs := append(util.GetBytes(), b[:n]...)
|
||||
select {
|
||||
case s.tun.send <- bs:
|
||||
default:
|
||||
util.PutBytes(bs)
|
||||
}
|
||||
} else if len(bs) > 0 {
|
||||
s.tun.send <- bs
|
||||
s.stillAlive()
|
||||
} else {
|
||||
util.PutBytes(bs)
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -96,12 +92,15 @@ func (s *tunConn) writer() error {
|
||||
select {
|
||||
case <-s.stop:
|
||||
return nil
|
||||
case b, ok := <-s.send:
|
||||
case bs, ok := <-s.send:
|
||||
if !ok {
|
||||
return errors.New("send closed")
|
||||
}
|
||||
// TODO write timeout and close
|
||||
if _, err := s.conn.Write(b); err != nil {
|
||||
msg := yggdrasil.FlowKeyMessage{
|
||||
FlowKey: util.GetFlowKey(bs),
|
||||
Message: bs,
|
||||
}
|
||||
if err := s.conn.WriteNoCopy(msg); err != nil {
|
||||
if e, eok := err.(yggdrasil.ConnError); !eok {
|
||||
if e.Closed() {
|
||||
s.tun.log.Debugln(s.conn.String(), "TUN/TAP generic write debug:", err)
|
||||
@ -112,9 +111,9 @@ func (s *tunConn) writer() error {
|
||||
// TODO: This currently isn't aware of IPv4 for CKR
|
||||
ptb := &icmp.PacketTooBig{
|
||||
MTU: int(e.PacketMaximumSize()),
|
||||
Data: b[:900],
|
||||
Data: bs[:900],
|
||||
}
|
||||
if packet, err := CreateICMPv6(b[8:24], b[24:40], ipv6.ICMPTypePacketTooBig, 0, ptb); err == nil {
|
||||
if packet, err := CreateICMPv6(bs[8:24], bs[24:40], ipv6.ICMPTypePacketTooBig, 0, ptb); err == nil {
|
||||
s.tun.send <- packet
|
||||
}
|
||||
} else {
|
||||
@ -127,7 +126,6 @@ func (s *tunConn) writer() error {
|
||||
} else {
|
||||
s.stillAlive()
|
||||
}
|
||||
util.PutBytes(b)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -139,8 +139,10 @@ func (tun *TunAdapter) readerPacketHandler(ch chan []byte) {
|
||||
continue
|
||||
}
|
||||
}
|
||||
// Shift forward to avoid leaking bytes off the front of the slide when we eventually store it
|
||||
bs = append(recvd[:0], bs...)
|
||||
if offset != 0 {
|
||||
// Shift forward to avoid leaking bytes off the front of the slice when we eventually store it
|
||||
bs = append(recvd[:0], bs...)
|
||||
}
|
||||
// From the IP header, work out what our source and destination addresses
|
||||
// and node IDs are. We will need these in order to work out where to send
|
||||
// the packet
|
||||
@ -260,11 +262,8 @@ func (tun *TunAdapter) readerPacketHandler(ch chan []byte) {
|
||||
tun.mutex.Unlock()
|
||||
if tc != nil {
|
||||
for _, packet := range packets {
|
||||
select {
|
||||
case tc.send <- packet:
|
||||
default:
|
||||
util.PutBytes(packet)
|
||||
}
|
||||
p := packet // Possibly required because of how range
|
||||
tc.send <- p
|
||||
}
|
||||
}
|
||||
}()
|
||||
@ -274,21 +273,18 @@ func (tun *TunAdapter) readerPacketHandler(ch chan []byte) {
|
||||
}
|
||||
// If we have a connection now, try writing to it
|
||||
if isIn && session != nil {
|
||||
select {
|
||||
case session.send <- bs:
|
||||
default:
|
||||
util.PutBytes(bs)
|
||||
}
|
||||
session.send <- bs
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (tun *TunAdapter) reader() error {
|
||||
recvd := make([]byte, 65535+tun_ETHER_HEADER_LENGTH)
|
||||
toWorker := make(chan []byte, 32)
|
||||
defer close(toWorker)
|
||||
go tun.readerPacketHandler(toWorker)
|
||||
for {
|
||||
// Get a slice to store the packet in
|
||||
recvd := util.ResizeBytes(util.GetBytes(), 65535+tun_ETHER_HEADER_LENGTH)
|
||||
// Wait for a packet to be delivered to us through the TUN/TAP adapter
|
||||
n, err := tun.iface.Read(recvd)
|
||||
if err != nil {
|
||||
@ -298,9 +294,10 @@ func (tun *TunAdapter) reader() error {
|
||||
panic(err)
|
||||
}
|
||||
if n == 0 {
|
||||
util.PutBytes(recvd)
|
||||
continue
|
||||
}
|
||||
bs := append(util.GetBytes(), recvd[:n]...)
|
||||
toWorker <- bs
|
||||
// Send the packet to the worker
|
||||
toWorker <- recvd[:n]
|
||||
}
|
||||
}
|
||||
|
||||
@ -5,11 +5,7 @@ package tuntap
|
||||
// The linux platform specific tun parts
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"net"
|
||||
|
||||
"github.com/docker/libcontainer/netlink"
|
||||
"github.com/vishvananda/netlink"
|
||||
|
||||
water "github.com/yggdrasil-network/water"
|
||||
)
|
||||
@ -51,35 +47,21 @@ func (tun *TunAdapter) setup(ifname string, iftapmode bool, addr string, mtu int
|
||||
// to exist on the system, but this will fail if Netlink is not present in the
|
||||
// kernel (it nearly always is).
|
||||
func (tun *TunAdapter) setupAddress(addr string) error {
|
||||
// Set address
|
||||
var netIF *net.Interface
|
||||
ifces, err := net.Interfaces()
|
||||
nladdr, err := netlink.ParseAddr(addr)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
for _, ifce := range ifces {
|
||||
if ifce.Name == tun.iface.Name() {
|
||||
var newIF = ifce
|
||||
netIF = &newIF // Don't point inside ifces, it's apparently unsafe?...
|
||||
}
|
||||
}
|
||||
if netIF == nil {
|
||||
return errors.New(fmt.Sprintf("Failed to find interface: %s", tun.iface.Name()))
|
||||
}
|
||||
ip, ipNet, err := net.ParseCIDR(addr)
|
||||
nlintf, err := netlink.LinkByName(tun.iface.Name())
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
err = netlink.NetworkLinkAddIp(netIF, ip, ipNet)
|
||||
if err != nil {
|
||||
if err := netlink.AddrAdd(nlintf, nladdr); err != nil {
|
||||
return err
|
||||
}
|
||||
err = netlink.NetworkSetMTU(netIF, tun.mtu)
|
||||
if err != nil {
|
||||
if err := netlink.LinkSetMTU(nlintf, tun.mtu); err != nil {
|
||||
return err
|
||||
}
|
||||
netlink.NetworkLinkUp(netIF)
|
||||
if err != nil {
|
||||
if err := netlink.LinkSetUp(nlintf); err != nil {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
|
||||
@ -2,9 +2,13 @@ package util
|
||||
|
||||
// These are misc. utility functions that didn't really fit anywhere else
|
||||
|
||||
import "runtime"
|
||||
import "sync"
|
||||
import "time"
|
||||
import (
|
||||
"runtime"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
||||
// A wrapper around runtime.Gosched() so it doesn't need to be imported elsewhere.
|
||||
func Yield() {
|
||||
@ -22,27 +26,25 @@ func UnlockThread() {
|
||||
}
|
||||
|
||||
// This is used to buffer recently used slices of bytes, to prevent allocations in the hot loops.
|
||||
var byteStoreMutex sync.Mutex
|
||||
var byteStore [][]byte
|
||||
var byteStore = sync.Pool{New: func() interface{} { return []byte(nil) }}
|
||||
|
||||
// Gets an empty slice from the byte store.
|
||||
func GetBytes() []byte {
|
||||
byteStoreMutex.Lock()
|
||||
defer byteStoreMutex.Unlock()
|
||||
if len(byteStore) > 0 {
|
||||
var bs []byte
|
||||
bs, byteStore = byteStore[len(byteStore)-1][:0], byteStore[:len(byteStore)-1]
|
||||
return bs
|
||||
} else {
|
||||
return nil
|
||||
}
|
||||
return byteStore.Get().([]byte)[:0]
|
||||
}
|
||||
|
||||
// Puts a slice in the store.
|
||||
func PutBytes(bs []byte) {
|
||||
byteStoreMutex.Lock()
|
||||
defer byteStoreMutex.Unlock()
|
||||
byteStore = append(byteStore, bs)
|
||||
byteStore.Put(bs)
|
||||
}
|
||||
|
||||
// Gets a slice of the appropriate length, reusing existing slice capacity when possible
|
||||
func ResizeBytes(bs []byte, length int) []byte {
|
||||
if cap(bs) >= length {
|
||||
return bs[:length]
|
||||
} else {
|
||||
return make([]byte, length)
|
||||
}
|
||||
}
|
||||
|
||||
// This is a workaround to go's broken timer implementation
|
||||
@ -91,3 +93,54 @@ func Difference(a, b []string) []string {
|
||||
}
|
||||
return ab
|
||||
}
|
||||
|
||||
// DecodeCoordString decodes a string representing coordinates in [1 2 3] format
|
||||
// and returns a []uint64.
|
||||
func DecodeCoordString(in string) (out []uint64) {
|
||||
s := strings.Trim(in, "[]")
|
||||
t := strings.Split(s, " ")
|
||||
for _, a := range t {
|
||||
if u, err := strconv.ParseUint(a, 0, 64); err == nil {
|
||||
out = append(out, u)
|
||||
}
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
// GetFlowLabel takes an IP packet as an argument and returns some information about the traffic flow.
|
||||
// For IPv4 packets, this is derived from the source and destination protocol and port numbers.
|
||||
// For IPv6 packets, this is derived from the FlowLabel field of the packet if this was set, otherwise it's handled like IPv4.
|
||||
// The FlowKey is then used internally by Yggdrasil for congestion control.
|
||||
func GetFlowKey(bs []byte) uint64 {
|
||||
// Work out the flowkey - this is used to determine which switch queue
|
||||
// traffic will be pushed to in the event of congestion
|
||||
var flowkey uint64
|
||||
// Get the IP protocol version from the packet
|
||||
switch bs[0] & 0xf0 {
|
||||
case 0x40: // IPv4 packet
|
||||
// Check the packet meets minimum UDP packet length
|
||||
if len(bs) >= 24 {
|
||||
// Is the protocol TCP, UDP or SCTP?
|
||||
if bs[9] == 0x06 || bs[9] == 0x11 || bs[9] == 0x84 {
|
||||
ihl := bs[0] & 0x0f * 4 // Header length
|
||||
flowkey = uint64(bs[9])<<32 /* proto */ |
|
||||
uint64(bs[ihl+0])<<24 | uint64(bs[ihl+1])<<16 /* sport */ |
|
||||
uint64(bs[ihl+2])<<8 | uint64(bs[ihl+3]) /* dport */
|
||||
}
|
||||
}
|
||||
case 0x60: // IPv6 packet
|
||||
// Check if the flowlabel was specified in the packet header
|
||||
flowkey = uint64(bs[1]&0x0f)<<16 | uint64(bs[2])<<8 | uint64(bs[3])
|
||||
// If the flowlabel isn't present, make protokey from proto | sport | dport
|
||||
// if the packet meets minimum UDP packet length
|
||||
if flowkey == 0 && len(bs) >= 48 {
|
||||
// Is the protocol TCP, UDP or SCTP?
|
||||
if bs[6] == 0x06 || bs[6] == 0x11 || bs[6] == 0x84 {
|
||||
flowkey = uint64(bs[6])<<32 /* proto */ |
|
||||
uint64(bs[40])<<24 | uint64(bs[41])<<16 /* sport */ |
|
||||
uint64(bs[42])<<8 | uint64(bs[43]) /* dport */
|
||||
}
|
||||
}
|
||||
}
|
||||
return flowkey
|
||||
}
|
||||
|
||||
29
src/util/workerpool.go
Normal file
29
src/util/workerpool.go
Normal file
@ -0,0 +1,29 @@
|
||||
package util
|
||||
|
||||
import "runtime"
|
||||
|
||||
var workerPool chan func()
|
||||
|
||||
func init() {
|
||||
maxProcs := runtime.GOMAXPROCS(0)
|
||||
if maxProcs < 1 {
|
||||
maxProcs = 1
|
||||
}
|
||||
workerPool = make(chan func(), maxProcs)
|
||||
for idx := 0; idx < maxProcs; idx++ {
|
||||
go func() {
|
||||
for f := range workerPool {
|
||||
f()
|
||||
}
|
||||
}()
|
||||
}
|
||||
}
|
||||
|
||||
// WorkerGo submits a job to a pool of GOMAXPROCS worker goroutines.
|
||||
// This is meant for short non-blocking functions f() where you could just go f(),
|
||||
// but you want some kind of backpressure to prevent spawning endless goroutines.
|
||||
// WorkerGo returns as soon as the function is queued to run, not when it finishes.
|
||||
// In Yggdrasil, these workers are used for certain cryptographic operations.
|
||||
func WorkerGo(f func()) {
|
||||
workerPool <- f
|
||||
}
|
||||
22
src/version/version.go
Normal file
22
src/version/version.go
Normal file
@ -0,0 +1,22 @@
|
||||
package version
|
||||
|
||||
var buildName string
|
||||
var buildVersion string
|
||||
|
||||
// BuildName gets the current build name. This is usually injected if built
|
||||
// from git, or returns "unknown" otherwise.
|
||||
func BuildName() string {
|
||||
if buildName == "" {
|
||||
return "yggdrasilctl"
|
||||
}
|
||||
return buildName
|
||||
}
|
||||
|
||||
// BuildVersion gets the current build version. This is usually injected if
|
||||
// built from git, or returns "unknown" otherwise.
|
||||
func BuildVersion() string {
|
||||
if buildVersion == "" {
|
||||
return "unknown"
|
||||
}
|
||||
return buildVersion
|
||||
}
|
||||
@ -6,8 +6,6 @@ import (
|
||||
"fmt"
|
||||
"net"
|
||||
"sort"
|
||||
"strconv"
|
||||
"strings"
|
||||
"sync/atomic"
|
||||
"time"
|
||||
|
||||
@ -34,7 +32,7 @@ type Peer struct {
|
||||
// to a given node.
|
||||
type SwitchPeer struct {
|
||||
PublicKey crypto.BoxPubKey
|
||||
Coords []byte
|
||||
Coords []uint64
|
||||
BytesSent uint64
|
||||
BytesRecvd uint64
|
||||
Port uint64
|
||||
@ -46,14 +44,14 @@ type SwitchPeer struct {
|
||||
// DHT searches.
|
||||
type DHTEntry struct {
|
||||
PublicKey crypto.BoxPubKey
|
||||
Coords []byte
|
||||
Coords []uint64
|
||||
LastSeen time.Duration
|
||||
}
|
||||
|
||||
// DHTRes represents a DHT response, as returned by DHTPing.
|
||||
type DHTRes struct {
|
||||
PublicKey crypto.BoxPubKey // key of the sender
|
||||
Coords []byte // coords of the sender
|
||||
Coords []uint64 // coords of the sender
|
||||
Dest crypto.NodeID // the destination node ID
|
||||
Infos []DHTEntry // response
|
||||
}
|
||||
@ -85,7 +83,7 @@ type SwitchQueue struct {
|
||||
// Session represents an open session with another node.
|
||||
type Session struct {
|
||||
PublicKey crypto.BoxPubKey
|
||||
Coords []byte
|
||||
Coords []uint64
|
||||
BytesSent uint64
|
||||
BytesRecvd uint64
|
||||
MTU uint16
|
||||
@ -138,7 +136,7 @@ func (c *Core) GetSwitchPeers() []SwitchPeer {
|
||||
}
|
||||
coords := elem.locator.getCoords()
|
||||
info := SwitchPeer{
|
||||
Coords: append([]byte{}, coords...),
|
||||
Coords: append([]uint64{}, wire_coordsBytestoUint64s(coords)...),
|
||||
BytesSent: atomic.LoadUint64(&peer.bytesSent),
|
||||
BytesRecvd: atomic.LoadUint64(&peer.bytesRecvd),
|
||||
Port: uint64(elem.port),
|
||||
@ -166,7 +164,7 @@ func (c *Core) GetDHT() []DHTEntry {
|
||||
})
|
||||
for _, v := range dhtentry {
|
||||
info := DHTEntry{
|
||||
Coords: append([]byte{}, v.coords...),
|
||||
Coords: append([]uint64{}, wire_coordsBytestoUint64s(v.coords)...),
|
||||
LastSeen: now.Sub(v.recv),
|
||||
}
|
||||
copy(info.PublicKey[:], v.key[:])
|
||||
@ -214,7 +212,7 @@ func (c *Core) GetSessions() []Session {
|
||||
var session Session
|
||||
workerFunc := func() {
|
||||
session = Session{
|
||||
Coords: append([]byte{}, sinfo.coords...),
|
||||
Coords: append([]uint64{}, wire_coordsBytestoUint64s(sinfo.coords)...),
|
||||
MTU: sinfo.getMTU(),
|
||||
BytesSent: sinfo.bytesSent,
|
||||
BytesRecvd: sinfo.bytesRecvd,
|
||||
@ -243,24 +241,6 @@ func (c *Core) GetSessions() []Session {
|
||||
return sessions
|
||||
}
|
||||
|
||||
// BuildName gets the current build name. This is usually injected if built
|
||||
// from git, or returns "unknown" otherwise.
|
||||
func BuildName() string {
|
||||
if buildName == "" {
|
||||
return "yggdrasil"
|
||||
}
|
||||
return buildName
|
||||
}
|
||||
|
||||
// BuildVersion gets the current build version. This is usually injected if
|
||||
// built from git, or returns "unknown" otherwise.
|
||||
func BuildVersion() string {
|
||||
if buildVersion == "" {
|
||||
return "unknown"
|
||||
}
|
||||
return buildVersion
|
||||
}
|
||||
|
||||
// ConnListen returns a listener for Yggdrasil session connections.
|
||||
func (c *Core) ConnListen() (*Listener, error) {
|
||||
c.sessions.listenerMutex.Lock()
|
||||
@ -311,9 +291,9 @@ func (c *Core) EncryptionPublicKey() string {
|
||||
}
|
||||
|
||||
// Coords returns the current coordinates of the node.
|
||||
func (c *Core) Coords() []byte {
|
||||
func (c *Core) Coords() []uint64 {
|
||||
table := c.switchTable.table.Load().(lookupTable)
|
||||
return table.self.getCoords()
|
||||
return wire_coordsBytestoUint64s(table.self.getCoords())
|
||||
}
|
||||
|
||||
// Address gets the IPv6 address of the Yggdrasil node. This is always a /128
|
||||
@ -336,8 +316,8 @@ func (c *Core) MyNodeInfo() NodeInfoPayload {
|
||||
return c.router.nodeinfo.getNodeInfo()
|
||||
}
|
||||
|
||||
// SetNodeInfo the lcal nodeinfo. Note that nodeinfo can be any value or struct,
|
||||
// it will be serialised into JSON automatically.
|
||||
// SetNodeInfo sets the local nodeinfo. Note that nodeinfo can be any value or
|
||||
// struct, it will be serialised into JSON automatically.
|
||||
func (c *Core) SetNodeInfo(nodeinfo interface{}, nodeinfoprivacy bool) {
|
||||
c.router.nodeinfo.setNodeInfo(nodeinfo, nodeinfoprivacy)
|
||||
}
|
||||
@ -346,30 +326,7 @@ func (c *Core) SetNodeInfo(nodeinfo interface{}, nodeinfoprivacy bool) {
|
||||
// key and coordinates specified. The third parameter specifies whether a cached
|
||||
// result is acceptable - this results in less traffic being generated than is
|
||||
// necessary when, e.g. crawling the network.
|
||||
func (c *Core) GetNodeInfo(keyString, coordString string, nocache bool) (NodeInfoPayload, error) {
|
||||
var key crypto.BoxPubKey
|
||||
if keyBytes, err := hex.DecodeString(keyString); err != nil {
|
||||
return NodeInfoPayload{}, err
|
||||
} else {
|
||||
copy(key[:], keyBytes)
|
||||
}
|
||||
if !nocache {
|
||||
if response, err := c.router.nodeinfo.getCachedNodeInfo(key); err == nil {
|
||||
return response, nil
|
||||
}
|
||||
}
|
||||
var coords []byte
|
||||
for _, cstr := range strings.Split(strings.Trim(coordString, "[]"), " ") {
|
||||
if cstr == "" {
|
||||
// Special case, happens if trimmed is the empty string, e.g. this is the root
|
||||
continue
|
||||
}
|
||||
if u64, err := strconv.ParseUint(cstr, 10, 8); err != nil {
|
||||
return NodeInfoPayload{}, err
|
||||
} else {
|
||||
coords = append(coords, uint8(u64))
|
||||
}
|
||||
}
|
||||
func (c *Core) GetNodeInfo(key crypto.BoxPubKey, coords []uint64, nocache bool) (NodeInfoPayload, error) {
|
||||
response := make(chan *NodeInfoPayload, 1)
|
||||
sendNodeInfoRequest := func() {
|
||||
c.router.nodeinfo.addCallback(key, func(nodeinfo *NodeInfoPayload) {
|
||||
@ -379,7 +336,7 @@ func (c *Core) GetNodeInfo(keyString, coordString string, nocache bool) (NodeInf
|
||||
default:
|
||||
}
|
||||
})
|
||||
c.router.nodeinfo.sendNodeInfo(key, coords, false)
|
||||
c.router.nodeinfo.sendNodeInfo(key, wire_coordsUint64stoBytes(coords), false)
|
||||
}
|
||||
c.router.doAdmin(sendNodeInfoRequest)
|
||||
go func() {
|
||||
@ -389,7 +346,7 @@ func (c *Core) GetNodeInfo(keyString, coordString string, nocache bool) (NodeInf
|
||||
for res := range response {
|
||||
return *res, nil
|
||||
}
|
||||
return NodeInfoPayload{}, fmt.Errorf("getNodeInfo timeout: %s", keyString)
|
||||
return NodeInfoPayload{}, fmt.Errorf("getNodeInfo timeout: %s", hex.EncodeToString(key[:]))
|
||||
}
|
||||
|
||||
// SetSessionGatekeeper allows you to configure a handler function for deciding
|
||||
@ -477,64 +434,38 @@ func (c *Core) RemoveAllowedEncryptionPublicKey(bstr string) (err error) {
|
||||
|
||||
// DHTPing sends a DHT ping to the node with the provided key and coords,
|
||||
// optionally looking up the specified target NodeID.
|
||||
func (c *Core) DHTPing(keyString, coordString, targetString string) (DHTRes, error) {
|
||||
var key crypto.BoxPubKey
|
||||
if keyBytes, err := hex.DecodeString(keyString); err != nil {
|
||||
return DHTRes{}, err
|
||||
} else {
|
||||
copy(key[:], keyBytes)
|
||||
}
|
||||
var coords []byte
|
||||
for _, cstr := range strings.Split(strings.Trim(coordString, "[]"), " ") {
|
||||
if cstr == "" {
|
||||
// Special case, happens if trimmed is the empty string, e.g. this is the root
|
||||
continue
|
||||
}
|
||||
if u64, err := strconv.ParseUint(cstr, 10, 8); err != nil {
|
||||
return DHTRes{}, err
|
||||
} else {
|
||||
coords = append(coords, uint8(u64))
|
||||
}
|
||||
}
|
||||
func (c *Core) DHTPing(key crypto.BoxPubKey, coords []uint64, target *crypto.NodeID) (DHTRes, error) {
|
||||
resCh := make(chan *dhtRes, 1)
|
||||
info := dhtInfo{
|
||||
key: key,
|
||||
coords: coords,
|
||||
coords: wire_coordsUint64stoBytes(coords),
|
||||
}
|
||||
target := *info.getNodeID()
|
||||
if targetString == "none" {
|
||||
// Leave the default target in place
|
||||
} else if targetBytes, err := hex.DecodeString(targetString); err != nil {
|
||||
return DHTRes{}, err
|
||||
} else if len(targetBytes) != len(target) {
|
||||
return DHTRes{}, errors.New("Incorrect target NodeID length")
|
||||
} else {
|
||||
var target crypto.NodeID
|
||||
copy(target[:], targetBytes)
|
||||
if target == nil {
|
||||
target = info.getNodeID()
|
||||
}
|
||||
rq := dhtReqKey{info.key, target}
|
||||
rq := dhtReqKey{info.key, *target}
|
||||
sendPing := func() {
|
||||
c.dht.addCallback(&rq, func(res *dhtRes) {
|
||||
resCh <- res
|
||||
})
|
||||
c.dht.ping(&info, &target)
|
||||
c.dht.ping(&info, &rq.dest)
|
||||
}
|
||||
c.router.doAdmin(sendPing)
|
||||
// TODO: do something better than the below...
|
||||
res := <-resCh
|
||||
if res != nil {
|
||||
r := DHTRes{
|
||||
Coords: append([]byte{}, res.Coords...),
|
||||
Coords: append([]uint64{}, wire_coordsBytestoUint64s(res.Coords)...),
|
||||
}
|
||||
copy(r.PublicKey[:], res.Key[:])
|
||||
for _, i := range res.Infos {
|
||||
e := DHTEntry{
|
||||
Coords: append([]byte{}, i.coords...),
|
||||
Coords: append([]uint64{}, wire_coordsBytestoUint64s(i.coords)...),
|
||||
}
|
||||
copy(e.PublicKey[:], i.key[:])
|
||||
r.Infos = append(r.Infos, e)
|
||||
}
|
||||
return r, nil
|
||||
}
|
||||
return DHTRes{}, fmt.Errorf("DHT ping timeout: %s", keyString)
|
||||
return DHTRes{}, fmt.Errorf("DHT ping timeout: %s", hex.EncodeToString(key[:]))
|
||||
}
|
||||
|
||||
@ -57,7 +57,6 @@ type Conn struct {
|
||||
core *Core
|
||||
readDeadline atomic.Value // time.Time // TODO timer
|
||||
writeDeadline atomic.Value // time.Time // TODO timer
|
||||
cancel util.Cancellation
|
||||
mutex sync.RWMutex // protects the below
|
||||
nodeID *crypto.NodeID
|
||||
nodeMask *crypto.NodeID
|
||||
@ -71,7 +70,6 @@ func newConn(core *Core, nodeID *crypto.NodeID, nodeMask *crypto.NodeID, session
|
||||
nodeID: nodeID,
|
||||
nodeMask: nodeMask,
|
||||
session: session,
|
||||
cancel: util.NewCancellation(),
|
||||
}
|
||||
return &conn
|
||||
}
|
||||
@ -82,7 +80,7 @@ func (c *Conn) String() string {
|
||||
return fmt.Sprintf("conn=%p", c)
|
||||
}
|
||||
|
||||
// This should never be called from the router goroutine
|
||||
// This should never be called from the router goroutine, used in the dial functions
|
||||
func (c *Conn) search() error {
|
||||
var sinfo *searchInfo
|
||||
var isIn bool
|
||||
@ -122,133 +120,117 @@ func (c *Conn) search() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
// Used in session keep-alive traffic in Conn.Write
|
||||
func (c *Conn) doSearch() {
|
||||
routerWork := func() {
|
||||
// Check to see if there is a search already matching the destination
|
||||
sinfo, isIn := c.core.searches.searches[*c.nodeID]
|
||||
if !isIn {
|
||||
// Nothing was found, so create a new search
|
||||
searchCompleted := func(sinfo *sessionInfo, e error) {}
|
||||
sinfo = c.core.searches.newIterSearch(c.nodeID, c.nodeMask, searchCompleted)
|
||||
c.core.log.Debugf("%s DHT search started: %p", c.String(), sinfo)
|
||||
// Start the search
|
||||
sinfo.continueSearch()
|
||||
}
|
||||
}
|
||||
go func() { c.core.router.admin <- routerWork }()
|
||||
}
|
||||
|
||||
func (c *Conn) getDeadlineCancellation(value *atomic.Value) util.Cancellation {
|
||||
if deadline, ok := value.Load().(time.Time); ok {
|
||||
// A deadline is set, so return a Cancellation that uses it
|
||||
return util.CancellationWithDeadline(c.cancel, deadline)
|
||||
return util.CancellationWithDeadline(c.session.cancel, deadline)
|
||||
} else {
|
||||
// No cancellation was set, so return a child cancellation with no timeout
|
||||
return util.CancellationChild(c.cancel)
|
||||
return util.CancellationChild(c.session.cancel)
|
||||
}
|
||||
}
|
||||
|
||||
func (c *Conn) Read(b []byte) (int, error) {
|
||||
// Take a copy of the session object
|
||||
sinfo := c.session
|
||||
// Used internally by Read, the caller is responsible for util.PutBytes when they're done.
|
||||
func (c *Conn) ReadNoCopy() ([]byte, error) {
|
||||
cancel := c.getDeadlineCancellation(&c.readDeadline)
|
||||
defer cancel.Cancel(nil)
|
||||
var bs []byte
|
||||
for {
|
||||
// Wait for some traffic to come through from the session
|
||||
select {
|
||||
case <-cancel.Finished():
|
||||
if cancel.Error() == util.CancellationTimeoutError {
|
||||
return 0, ConnError{errors.New("read timeout"), true, false, false, 0}
|
||||
} else {
|
||||
return 0, ConnError{errors.New("session closed"), false, false, true, 0}
|
||||
}
|
||||
case p, ok := <-sinfo.recv:
|
||||
// If the session is closed then do nothing
|
||||
if !ok {
|
||||
return 0, ConnError{errors.New("session closed"), false, false, true, 0}
|
||||
}
|
||||
var err error
|
||||
sessionFunc := func() {
|
||||
defer util.PutBytes(p.Payload)
|
||||
// If the nonce is bad then drop the packet and return an error
|
||||
if !sinfo.nonceIsOK(&p.Nonce) {
|
||||
err = ConnError{errors.New("packet dropped due to invalid nonce"), false, true, false, 0}
|
||||
return
|
||||
}
|
||||
// Decrypt the packet
|
||||
var isOK bool
|
||||
bs, isOK = crypto.BoxOpen(&sinfo.sharedSesKey, p.Payload, &p.Nonce)
|
||||
// Check if we were unable to decrypt the packet for some reason and
|
||||
// return an error if we couldn't
|
||||
if !isOK {
|
||||
err = ConnError{errors.New("packet dropped due to decryption failure"), false, true, false, 0}
|
||||
return
|
||||
}
|
||||
// Update the session
|
||||
sinfo.updateNonce(&p.Nonce)
|
||||
sinfo.time = time.Now()
|
||||
sinfo.bytesRecvd += uint64(len(bs))
|
||||
}
|
||||
sinfo.doFunc(sessionFunc)
|
||||
// Something went wrong in the session worker so abort
|
||||
if err != nil {
|
||||
if ce, ok := err.(*ConnError); ok && ce.Temporary() {
|
||||
continue
|
||||
}
|
||||
return 0, err
|
||||
}
|
||||
// Copy results to the output slice and clean up
|
||||
copy(b, bs)
|
||||
util.PutBytes(bs)
|
||||
// If we've reached this point then everything went to plan, return the
|
||||
// number of bytes we populated back into the given slice
|
||||
return len(bs), nil
|
||||
// Wait for some traffic to come through from the session
|
||||
select {
|
||||
case <-cancel.Finished():
|
||||
if cancel.Error() == util.CancellationTimeoutError {
|
||||
return nil, ConnError{errors.New("read timeout"), true, false, false, 0}
|
||||
} else {
|
||||
return nil, ConnError{errors.New("session closed"), false, false, true, 0}
|
||||
}
|
||||
case bs := <-c.session.recv:
|
||||
return bs, nil
|
||||
}
|
||||
}
|
||||
|
||||
func (c *Conn) Write(b []byte) (bytesWritten int, err error) {
|
||||
sinfo := c.session
|
||||
var packet []byte
|
||||
written := len(b)
|
||||
// Implements net.Conn.Read
|
||||
func (c *Conn) Read(b []byte) (int, error) {
|
||||
bs, err := c.ReadNoCopy()
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
n := len(bs)
|
||||
if len(bs) > len(b) {
|
||||
n = len(b)
|
||||
err = ConnError{errors.New("read buffer too small for entire packet"), false, true, false, 0}
|
||||
}
|
||||
// Copy results to the output slice and clean up
|
||||
copy(b, bs)
|
||||
util.PutBytes(bs)
|
||||
// Return the number of bytes copied to the slice, along with any error
|
||||
return n, err
|
||||
}
|
||||
|
||||
// Used internally by Write, the caller must not reuse the argument bytes when no error occurs
|
||||
func (c *Conn) WriteNoCopy(msg FlowKeyMessage) error {
|
||||
var err error
|
||||
sessionFunc := func() {
|
||||
// Does the packet exceed the permitted size for the session?
|
||||
if uint16(len(b)) > sinfo.getMTU() {
|
||||
written, err = 0, ConnError{errors.New("packet too big"), true, false, false, int(sinfo.getMTU())}
|
||||
if uint16(len(msg.Message)) > c.session.getMTU() {
|
||||
err = ConnError{errors.New("packet too big"), true, false, false, int(c.session.getMTU())}
|
||||
return
|
||||
}
|
||||
// Encrypt the packet
|
||||
payload, nonce := crypto.BoxSeal(&sinfo.sharedSesKey, b, &sinfo.myNonce)
|
||||
defer util.PutBytes(payload)
|
||||
// Construct the wire packet to send to the router
|
||||
p := wire_trafficPacket{
|
||||
Coords: sinfo.coords,
|
||||
Handle: sinfo.theirHandle,
|
||||
Nonce: *nonce,
|
||||
Payload: payload,
|
||||
}
|
||||
packet = p.encode()
|
||||
sinfo.bytesSent += uint64(len(b))
|
||||
// The rest of this work is session keep-alive traffic
|
||||
doSearch := func() {
|
||||
routerWork := func() {
|
||||
// Check to see if there is a search already matching the destination
|
||||
sinfo, isIn := c.core.searches.searches[*c.nodeID]
|
||||
if !isIn {
|
||||
// Nothing was found, so create a new search
|
||||
searchCompleted := func(sinfo *sessionInfo, e error) {}
|
||||
sinfo = c.core.searches.newIterSearch(c.nodeID, c.nodeMask, searchCompleted)
|
||||
c.core.log.Debugf("%s DHT search started: %p", c.String(), sinfo)
|
||||
}
|
||||
// Continue the search
|
||||
sinfo.continueSearch()
|
||||
}
|
||||
go func() { c.core.router.admin <- routerWork }()
|
||||
}
|
||||
switch {
|
||||
case time.Since(sinfo.time) > 6*time.Second:
|
||||
if sinfo.time.Before(sinfo.pingTime) && time.Since(sinfo.pingTime) > 6*time.Second {
|
||||
case time.Since(c.session.time) > 6*time.Second:
|
||||
if c.session.time.Before(c.session.pingTime) && time.Since(c.session.pingTime) > 6*time.Second {
|
||||
// TODO double check that the above condition is correct
|
||||
doSearch()
|
||||
c.doSearch()
|
||||
} else {
|
||||
sinfo.core.sessions.ping(sinfo)
|
||||
c.core.sessions.ping(c.session)
|
||||
}
|
||||
case sinfo.reset && sinfo.pingTime.Before(sinfo.time):
|
||||
sinfo.core.sessions.ping(sinfo)
|
||||
case c.session.reset && c.session.pingTime.Before(c.session.time):
|
||||
c.core.sessions.ping(c.session)
|
||||
default: // Don't do anything, to keep traffic throttled
|
||||
}
|
||||
}
|
||||
sinfo.doFunc(sessionFunc)
|
||||
// Give the packet to the router
|
||||
if written > 0 {
|
||||
sinfo.core.router.out(packet)
|
||||
c.session.doFunc(sessionFunc)
|
||||
if err == nil {
|
||||
cancel := c.getDeadlineCancellation(&c.writeDeadline)
|
||||
defer cancel.Cancel(nil)
|
||||
select {
|
||||
case <-cancel.Finished():
|
||||
if cancel.Error() == util.CancellationTimeoutError {
|
||||
err = ConnError{errors.New("write timeout"), true, false, false, 0}
|
||||
} else {
|
||||
err = ConnError{errors.New("session closed"), false, false, true, 0}
|
||||
}
|
||||
case c.session.send <- msg:
|
||||
}
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
// Implements net.Conn.Write
|
||||
func (c *Conn) Write(b []byte) (int, error) {
|
||||
written := len(b)
|
||||
msg := FlowKeyMessage{Message: append(util.GetBytes(), b...)}
|
||||
err := c.WriteNoCopy(msg)
|
||||
if err != nil {
|
||||
util.PutBytes(msg.Message)
|
||||
written = 0
|
||||
}
|
||||
// Finally return the number of bytes we wrote
|
||||
return written, err
|
||||
}
|
||||
|
||||
@ -257,10 +239,9 @@ func (c *Conn) Close() (err error) {
|
||||
defer c.mutex.Unlock()
|
||||
if c.session != nil {
|
||||
// Close the session, if it hasn't been closed already
|
||||
c.core.router.doAdmin(c.session.close)
|
||||
}
|
||||
if e := c.cancel.Cancel(errors.New("connection closed")); e != nil {
|
||||
err = ConnError{errors.New("close failed, session already closed"), false, false, true, 0}
|
||||
if e := c.session.cancel.Cancel(errors.New("connection closed")); e != nil {
|
||||
err = ConnError{errors.New("close failed, session already closed"), false, false, true, 0}
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
@ -10,11 +10,9 @@ import (
|
||||
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/config"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/version"
|
||||
)
|
||||
|
||||
var buildName string
|
||||
var buildVersion string
|
||||
|
||||
// The Core object represents the Yggdrasil node. You should create a Core
|
||||
// object for each Yggdrasil node you plan to run.
|
||||
type Core struct {
|
||||
@ -164,10 +162,10 @@ func (c *Core) Start(nc *config.NodeConfig, log *log.Logger) (*config.NodeState,
|
||||
Previous: *nc,
|
||||
}
|
||||
|
||||
if name := BuildName(); name != "unknown" {
|
||||
if name := version.BuildName(); name != "unknown" {
|
||||
c.log.Infoln("Build name:", name)
|
||||
}
|
||||
if version := BuildVersion(); version != "unknown" {
|
||||
if version := version.BuildVersion(); version != "unknown" {
|
||||
c.log.Infoln("Build version:", version)
|
||||
}
|
||||
|
||||
|
||||
@ -69,6 +69,7 @@ func (d *Dialer) DialByNodeIDandMask(nodeID, nodeMask *crypto.NodeID) (*Conn, er
|
||||
defer t.Stop()
|
||||
select {
|
||||
case <-conn.session.init:
|
||||
conn.session.startWorkers()
|
||||
return conn, nil
|
||||
case <-t.C:
|
||||
conn.Close()
|
||||
|
||||
@ -179,7 +179,10 @@ func (intf *linkInterface) handler() error {
|
||||
// That lets them do things like close connections on its own, avoid printing a connection message in the first place, etc.
|
||||
intf.link.core.log.Debugln("DEBUG: found existing interface for", intf.name)
|
||||
intf.msgIO.close()
|
||||
<-oldIntf.closed
|
||||
if !intf.incoming {
|
||||
// Block outgoing connection attempts until the existing connection closes
|
||||
<-oldIntf.closed
|
||||
}
|
||||
return nil
|
||||
} else {
|
||||
intf.closed = make(chan struct{})
|
||||
|
||||
@ -9,6 +9,7 @@ import (
|
||||
"time"
|
||||
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/version"
|
||||
)
|
||||
|
||||
type nodeinfo struct {
|
||||
@ -99,8 +100,8 @@ func (m *nodeinfo) setNodeInfo(given interface{}, privacy bool) error {
|
||||
m.myNodeInfoMutex.Lock()
|
||||
defer m.myNodeInfoMutex.Unlock()
|
||||
defaults := map[string]interface{}{
|
||||
"buildname": BuildName(),
|
||||
"buildversion": BuildVersion(),
|
||||
"buildname": version.BuildName(),
|
||||
"buildversion": version.BuildVersion(),
|
||||
"buildplatform": runtime.GOOS,
|
||||
"buildarch": runtime.GOARCH,
|
||||
}
|
||||
|
||||
@ -127,7 +127,6 @@ func (r *router) mainLoop() {
|
||||
r.core.switchTable.doMaintenance()
|
||||
r.core.dht.doMaintenance()
|
||||
r.core.sessions.cleanup()
|
||||
util.GetBytes() // To slowly drain things
|
||||
}
|
||||
case f := <-r.admin:
|
||||
f()
|
||||
@ -163,11 +162,12 @@ func (r *router) handleTraffic(packet []byte) {
|
||||
}
|
||||
sinfo, isIn := r.core.sessions.getSessionForHandle(&p.Handle)
|
||||
if !isIn {
|
||||
util.PutBytes(p.Payload)
|
||||
return
|
||||
}
|
||||
select {
|
||||
case sinfo.recv <- &p: // FIXME ideally this should be front drop
|
||||
default:
|
||||
case sinfo.fromRouter <- p:
|
||||
case <-sinfo.cancel.Finished():
|
||||
util.PutBytes(p.Payload)
|
||||
}
|
||||
}
|
||||
|
||||
@ -65,17 +65,11 @@ func (s *searches) init(core *Core) {
|
||||
|
||||
// Creates a new search info, adds it to the searches struct, and returns a pointer to the info.
|
||||
func (s *searches) createSearch(dest *crypto.NodeID, mask *crypto.NodeID, callback func(*sessionInfo, error)) *searchInfo {
|
||||
now := time.Now()
|
||||
//for dest, sinfo := range s.searches {
|
||||
// if now.Sub(sinfo.time) > time.Minute {
|
||||
// delete(s.searches, dest)
|
||||
// }
|
||||
//}
|
||||
info := searchInfo{
|
||||
core: s.core,
|
||||
dest: *dest,
|
||||
mask: *mask,
|
||||
time: now.Add(-time.Second),
|
||||
time: time.Now(),
|
||||
callback: callback,
|
||||
}
|
||||
s.searches[*dest] = &info
|
||||
@ -138,9 +132,11 @@ func (sinfo *searchInfo) addToSearch(res *dhtRes) {
|
||||
// Otherwise, it pops the closest node to the destination (in keyspace) off of the toVisit list and sends a dht ping.
|
||||
func (sinfo *searchInfo) doSearchStep() {
|
||||
if len(sinfo.toVisit) == 0 {
|
||||
// Dead end, do cleanup
|
||||
delete(sinfo.core.searches.searches, sinfo.dest)
|
||||
sinfo.callback(nil, errors.New("search reached dead end"))
|
||||
if time.Since(sinfo.time) > search_RETRY_TIME {
|
||||
// Dead end and no response in too long, do cleanup
|
||||
delete(sinfo.core.searches.searches, sinfo.dest)
|
||||
sinfo.callback(nil, errors.New("search reached dead end"))
|
||||
}
|
||||
return
|
||||
}
|
||||
// Send to the next search target
|
||||
@ -149,15 +145,12 @@ func (sinfo *searchInfo) doSearchStep() {
|
||||
rq := dhtReqKey{next.key, sinfo.dest}
|
||||
sinfo.core.dht.addCallback(&rq, sinfo.handleDHTRes)
|
||||
sinfo.core.dht.ping(next, &sinfo.dest)
|
||||
sinfo.time = time.Now()
|
||||
}
|
||||
|
||||
// If we've recenty sent a ping for this search, do nothing.
|
||||
// Otherwise, doSearchStep and schedule another continueSearch to happen after search_RETRY_TIME.
|
||||
func (sinfo *searchInfo) continueSearch() {
|
||||
if time.Since(sinfo.time) < search_RETRY_TIME {
|
||||
return
|
||||
}
|
||||
sinfo.time = time.Now()
|
||||
sinfo.doSearchStep()
|
||||
// In case the search dies, try to spawn another thread later
|
||||
// Note that this will spawn multiple parallel searches as time passes
|
||||
@ -209,6 +202,8 @@ func (sinfo *searchInfo) checkDHTRes(res *dhtRes) bool {
|
||||
if sess == nil {
|
||||
// nil if the DHT search finished but the session wasn't allowed
|
||||
sinfo.callback(nil, errors.New("session not allowed"))
|
||||
// Cleanup
|
||||
delete(sinfo.core.searches.searches, res.Dest)
|
||||
return true
|
||||
}
|
||||
_, isIn := sinfo.core.sessions.getByTheirPerm(&res.Key)
|
||||
|
||||
@ -6,46 +6,71 @@ package yggdrasil
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"container/heap"
|
||||
"errors"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/address"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/crypto"
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/util"
|
||||
)
|
||||
|
||||
// Duration that we keep track of old nonces per session, to allow some out-of-order packet delivery
|
||||
const nonceWindow = time.Second
|
||||
|
||||
// A heap of nonces, used with a map[nonce]time to allow out-of-order packets a little time to arrive without rejecting them
|
||||
type nonceHeap []crypto.BoxNonce
|
||||
|
||||
func (h nonceHeap) Len() int { return len(h) }
|
||||
func (h nonceHeap) Less(i, j int) bool { return h[i].Minus(&h[j]) < 0 }
|
||||
func (h nonceHeap) Swap(i, j int) { h[i], h[j] = h[j], h[i] }
|
||||
func (h *nonceHeap) Push(x interface{}) { *h = append(*h, x.(crypto.BoxNonce)) }
|
||||
func (h *nonceHeap) Pop() interface{} {
|
||||
l := len(*h)
|
||||
var n crypto.BoxNonce
|
||||
n, *h = (*h)[l-1], (*h)[:l-1]
|
||||
return n
|
||||
}
|
||||
func (h nonceHeap) peek() *crypto.BoxNonce { return &h[len(h)-1] }
|
||||
|
||||
// All the information we know about an active session.
|
||||
// This includes coords, permanent and ephemeral keys, handles and nonces, various sorts of timing information for timeout and maintenance, and some metadata for the admin API.
|
||||
type sessionInfo struct {
|
||||
mutex sync.Mutex // Protects all of the below, use it any time you read/chance the contents of a session
|
||||
core *Core //
|
||||
reconfigure chan chan error //
|
||||
theirAddr address.Address //
|
||||
theirSubnet address.Subnet //
|
||||
theirPermPub crypto.BoxPubKey //
|
||||
theirSesPub crypto.BoxPubKey //
|
||||
mySesPub crypto.BoxPubKey //
|
||||
mySesPriv crypto.BoxPrivKey //
|
||||
sharedSesKey crypto.BoxSharedKey // derived from session keys
|
||||
theirHandle crypto.Handle //
|
||||
myHandle crypto.Handle //
|
||||
theirNonce crypto.BoxNonce //
|
||||
theirNonceMask uint64 //
|
||||
myNonce crypto.BoxNonce //
|
||||
theirMTU uint16 //
|
||||
myMTU uint16 //
|
||||
wasMTUFixed bool // Was the MTU fixed by a receive error?
|
||||
timeOpened time.Time // Time the sessino was opened
|
||||
time time.Time // Time we last received a packet
|
||||
mtuTime time.Time // time myMTU was last changed
|
||||
pingTime time.Time // time the first ping was sent since the last received packet
|
||||
pingSend time.Time // time the last ping was sent
|
||||
coords []byte // coords of destination
|
||||
reset bool // reset if coords change
|
||||
tstamp int64 // ATOMIC - tstamp from their last session ping, replay attack mitigation
|
||||
bytesSent uint64 // Bytes of real traffic sent in this session
|
||||
bytesRecvd uint64 // Bytes of real traffic received in this session
|
||||
recv chan *wire_trafficPacket // Received packets go here, picked up by the associated Conn
|
||||
init chan struct{} // Closed when the first session pong arrives, used to signal that the session is ready for initial use
|
||||
mutex sync.Mutex // Protects all of the below, use it any time you read/chance the contents of a session
|
||||
core *Core //
|
||||
reconfigure chan chan error //
|
||||
theirAddr address.Address //
|
||||
theirSubnet address.Subnet //
|
||||
theirPermPub crypto.BoxPubKey //
|
||||
theirSesPub crypto.BoxPubKey //
|
||||
mySesPub crypto.BoxPubKey //
|
||||
mySesPriv crypto.BoxPrivKey //
|
||||
sharedSesKey crypto.BoxSharedKey // derived from session keys
|
||||
theirHandle crypto.Handle //
|
||||
myHandle crypto.Handle //
|
||||
theirNonce crypto.BoxNonce //
|
||||
theirNonceHeap nonceHeap // priority queue to keep track of the lowest nonce we recently accepted
|
||||
theirNonceMap map[crypto.BoxNonce]time.Time // time we added each nonce to the heap
|
||||
myNonce crypto.BoxNonce //
|
||||
theirMTU uint16 //
|
||||
myMTU uint16 //
|
||||
wasMTUFixed bool // Was the MTU fixed by a receive error?
|
||||
timeOpened time.Time // Time the sessino was opened
|
||||
time time.Time // Time we last received a packet
|
||||
mtuTime time.Time // time myMTU was last changed
|
||||
pingTime time.Time // time the first ping was sent since the last received packet
|
||||
pingSend time.Time // time the last ping was sent
|
||||
coords []byte // coords of destination
|
||||
reset bool // reset if coords change
|
||||
tstamp int64 // ATOMIC - tstamp from their last session ping, replay attack mitigation
|
||||
bytesSent uint64 // Bytes of real traffic sent in this session
|
||||
bytesRecvd uint64 // Bytes of real traffic received in this session
|
||||
init chan struct{} // Closed when the first session pong arrives, used to signal that the session is ready for initial use
|
||||
cancel util.Cancellation // Used to terminate workers
|
||||
fromRouter chan wire_trafficPacket // Received packets go here, to be decrypted by the session
|
||||
recv chan []byte // Decrypted packets go here, picked up by the associated Conn
|
||||
send chan FlowKeyMessage // Packets with optional flow key go here, to be encrypted and sent
|
||||
}
|
||||
|
||||
func (sinfo *sessionInfo) doFunc(f func()) {
|
||||
@ -82,7 +107,8 @@ func (s *sessionInfo) update(p *sessionPing) bool {
|
||||
s.theirHandle = p.Handle
|
||||
s.sharedSesKey = *crypto.GetSharedKey(&s.mySesPriv, &s.theirSesPub)
|
||||
s.theirNonce = crypto.BoxNonce{}
|
||||
s.theirNonceMask = 0
|
||||
s.theirNonceHeap = nil
|
||||
s.theirNonceMap = make(map[crypto.BoxNonce]time.Time)
|
||||
}
|
||||
if p.MTU >= 1280 || p.MTU == 0 {
|
||||
s.theirMTU = p.MTU
|
||||
@ -203,6 +229,7 @@ func (ss *sessions) createSession(theirPermKey *crypto.BoxPubKey) *sessionInfo {
|
||||
sinfo.pingTime = now
|
||||
sinfo.pingSend = now
|
||||
sinfo.init = make(chan struct{})
|
||||
sinfo.cancel = util.NewCancellation()
|
||||
higher := false
|
||||
for idx := range ss.core.boxPub {
|
||||
if ss.core.boxPub[idx] > sinfo.theirPermPub[idx] {
|
||||
@ -222,9 +249,16 @@ func (ss *sessions) createSession(theirPermKey *crypto.BoxPubKey) *sessionInfo {
|
||||
sinfo.myHandle = *crypto.NewHandle()
|
||||
sinfo.theirAddr = *address.AddrForNodeID(crypto.GetNodeID(&sinfo.theirPermPub))
|
||||
sinfo.theirSubnet = *address.SubnetForNodeID(crypto.GetNodeID(&sinfo.theirPermPub))
|
||||
sinfo.recv = make(chan *wire_trafficPacket, 32)
|
||||
sinfo.fromRouter = make(chan wire_trafficPacket, 1)
|
||||
sinfo.recv = make(chan []byte, 32)
|
||||
sinfo.send = make(chan FlowKeyMessage, 32)
|
||||
ss.sinfos[sinfo.myHandle] = &sinfo
|
||||
ss.byTheirPerm[sinfo.theirPermPub] = &sinfo.myHandle
|
||||
go func() {
|
||||
// Run cleanup when the session is canceled
|
||||
<-sinfo.cancel.Finished()
|
||||
sinfo.core.router.doAdmin(sinfo.close)
|
||||
}()
|
||||
return &sinfo
|
||||
}
|
||||
|
||||
@ -335,39 +369,40 @@ func (ss *sessions) sendPingPong(sinfo *sessionInfo, isPong bool) {
|
||||
func (ss *sessions) handlePing(ping *sessionPing) {
|
||||
// Get the corresponding session (or create a new session)
|
||||
sinfo, isIn := ss.getByTheirPerm(&ping.SendPermPub)
|
||||
// Check if the session is allowed
|
||||
// TODO: this check may need to be moved
|
||||
if !isIn && !ss.isSessionAllowed(&ping.SendPermPub, false) {
|
||||
return
|
||||
}
|
||||
// Create the session if it doesn't already exist
|
||||
if !isIn {
|
||||
ss.createSession(&ping.SendPermPub)
|
||||
sinfo, isIn = ss.getByTheirPerm(&ping.SendPermPub)
|
||||
if !isIn {
|
||||
panic("This should not happen")
|
||||
}
|
||||
switch {
|
||||
case isIn: // Session already exists
|
||||
case !ss.isSessionAllowed(&ping.SendPermPub, false): // Session is not allowed
|
||||
case ping.IsPong: // This is a response, not an initial ping, so ignore it.
|
||||
default:
|
||||
ss.listenerMutex.Lock()
|
||||
// Check and see if there's a Listener waiting to accept connections
|
||||
// TODO: this should not block if nothing is accepting
|
||||
if !ping.IsPong && ss.listener != nil {
|
||||
if ss.listener != nil {
|
||||
// This is a ping from an allowed node for which no session exists, and we have a listener ready to handle sessions.
|
||||
// We need to create a session and pass it to the listener.
|
||||
sinfo = ss.createSession(&ping.SendPermPub)
|
||||
if s, _ := ss.getByTheirPerm(&ping.SendPermPub); s != sinfo {
|
||||
panic("This should not happen")
|
||||
}
|
||||
conn := newConn(ss.core, crypto.GetNodeID(&sinfo.theirPermPub), &crypto.NodeID{}, sinfo)
|
||||
for i := range conn.nodeMask {
|
||||
conn.nodeMask[i] = 0xFF
|
||||
}
|
||||
ss.listener.conn <- conn
|
||||
conn.session.startWorkers()
|
||||
c := ss.listener.conn
|
||||
go func() { c <- conn }()
|
||||
}
|
||||
ss.listenerMutex.Unlock()
|
||||
}
|
||||
sinfo.doFunc(func() {
|
||||
// Update the session
|
||||
if !sinfo.update(ping) { /*panic("Should not happen in testing")*/
|
||||
return
|
||||
}
|
||||
if !ping.IsPong {
|
||||
ss.sendPingPong(sinfo, true)
|
||||
}
|
||||
})
|
||||
if sinfo != nil {
|
||||
sinfo.doFunc(func() {
|
||||
// Update the session
|
||||
if !sinfo.update(ping) { /*panic("Should not happen in testing")*/
|
||||
return
|
||||
}
|
||||
if !ping.IsPong {
|
||||
ss.sendPingPong(sinfo, true)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
// Get the MTU of the session.
|
||||
@ -386,27 +421,40 @@ func (sinfo *sessionInfo) getMTU() uint16 {
|
||||
// Checks if a packet's nonce is recent enough to fall within the window of allowed packets, and not already received.
|
||||
func (sinfo *sessionInfo) nonceIsOK(theirNonce *crypto.BoxNonce) bool {
|
||||
// The bitmask is to allow for some non-duplicate out-of-order packets
|
||||
diff := theirNonce.Minus(&sinfo.theirNonce)
|
||||
if diff > 0 {
|
||||
if theirNonce.Minus(&sinfo.theirNonce) > 0 {
|
||||
// This is newer than the newest nonce we've seen
|
||||
return true
|
||||
}
|
||||
return ^sinfo.theirNonceMask&(0x01<<uint64(-diff)) != 0
|
||||
if len(sinfo.theirNonceHeap) > 0 {
|
||||
if theirNonce.Minus(sinfo.theirNonceHeap.peek()) > 0 {
|
||||
if _, isIn := sinfo.theirNonceMap[*theirNonce]; !isIn {
|
||||
// This nonce is recent enough that we keep track of older nonces, but it's not one we've seen yet
|
||||
return true
|
||||
}
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// Updates the nonce mask by (possibly) shifting the bitmask and setting the bit corresponding to this nonce to 1, and then updating the most recent nonce
|
||||
func (sinfo *sessionInfo) updateNonce(theirNonce *crypto.BoxNonce) {
|
||||
// Shift nonce mask if needed
|
||||
// Set bit
|
||||
diff := theirNonce.Minus(&sinfo.theirNonce)
|
||||
if diff > 0 {
|
||||
// This nonce is newer, so shift the window before setting the bit, and update theirNonce in the session info.
|
||||
sinfo.theirNonceMask <<= uint64(diff)
|
||||
sinfo.theirNonceMask &= 0x01
|
||||
sinfo.theirNonce = *theirNonce
|
||||
} else {
|
||||
// This nonce is older, so set the bit but do not shift the window.
|
||||
sinfo.theirNonceMask &= 0x01 << uint64(-diff)
|
||||
// Start with some cleanup
|
||||
for len(sinfo.theirNonceHeap) > 64 {
|
||||
if time.Since(sinfo.theirNonceMap[*sinfo.theirNonceHeap.peek()]) < nonceWindow {
|
||||
// This nonce is still fairly new, so keep it around
|
||||
break
|
||||
}
|
||||
// TODO? reallocate the map in some cases, to free unused map space?
|
||||
delete(sinfo.theirNonceMap, *sinfo.theirNonceHeap.peek())
|
||||
heap.Pop(&sinfo.theirNonceHeap)
|
||||
}
|
||||
if theirNonce.Minus(&sinfo.theirNonce) > 0 {
|
||||
// This nonce is the newest we've seen, so make a note of that
|
||||
sinfo.theirNonce = *theirNonce
|
||||
}
|
||||
// Add it to the heap/map so we know not to allow it again
|
||||
heap.Push(&sinfo.theirNonceHeap, *theirNonce)
|
||||
sinfo.theirNonceMap[*theirNonce] = time.Now()
|
||||
}
|
||||
|
||||
// Resets all sessions to an uninitialized state.
|
||||
@ -418,3 +466,191 @@ func (ss *sessions) reset() {
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
//////////////////////////// Worker Functions Below ////////////////////////////
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
func (sinfo *sessionInfo) startWorkers() {
|
||||
go sinfo.recvWorker()
|
||||
go sinfo.sendWorker()
|
||||
}
|
||||
|
||||
type FlowKeyMessage struct {
|
||||
FlowKey uint64
|
||||
Message []byte
|
||||
}
|
||||
|
||||
func (sinfo *sessionInfo) recvWorker() {
|
||||
// TODO move theirNonce etc into a struct that gets stored here, passed in over a channel
|
||||
// Since there's no reason for anywhere else in the session code to need to *read* it...
|
||||
// Only needs to be updated from the outside if a ping resets it...
|
||||
// That would get rid of the need to take a mutex for the sessionFunc
|
||||
var callbacks []chan func()
|
||||
doRecv := func(p wire_trafficPacket) {
|
||||
var bs []byte
|
||||
var err error
|
||||
var k crypto.BoxSharedKey
|
||||
sessionFunc := func() {
|
||||
if !sinfo.nonceIsOK(&p.Nonce) {
|
||||
err = ConnError{errors.New("packet dropped due to invalid nonce"), false, true, false, 0}
|
||||
return
|
||||
}
|
||||
k = sinfo.sharedSesKey
|
||||
}
|
||||
sinfo.doFunc(sessionFunc)
|
||||
if err != nil {
|
||||
util.PutBytes(p.Payload)
|
||||
return
|
||||
}
|
||||
var isOK bool
|
||||
ch := make(chan func(), 1)
|
||||
poolFunc := func() {
|
||||
bs, isOK = crypto.BoxOpen(&k, p.Payload, &p.Nonce)
|
||||
callback := func() {
|
||||
util.PutBytes(p.Payload)
|
||||
if !isOK {
|
||||
util.PutBytes(bs)
|
||||
return
|
||||
}
|
||||
sessionFunc = func() {
|
||||
if k != sinfo.sharedSesKey || !sinfo.nonceIsOK(&p.Nonce) {
|
||||
// The session updated in the mean time, so return an error
|
||||
err = ConnError{errors.New("session updated during crypto operation"), false, true, false, 0}
|
||||
return
|
||||
}
|
||||
sinfo.updateNonce(&p.Nonce)
|
||||
sinfo.time = time.Now()
|
||||
sinfo.bytesRecvd += uint64(len(bs))
|
||||
}
|
||||
sinfo.doFunc(sessionFunc)
|
||||
if err != nil {
|
||||
// Not sure what else to do with this packet, I guess just drop it
|
||||
util.PutBytes(bs)
|
||||
} else {
|
||||
// Pass the packet to the buffer for Conn.Read
|
||||
select {
|
||||
case <-sinfo.cancel.Finished():
|
||||
util.PutBytes(bs)
|
||||
case sinfo.recv <- bs:
|
||||
}
|
||||
}
|
||||
}
|
||||
ch <- callback
|
||||
}
|
||||
// Send to the worker and wait for it to finish
|
||||
util.WorkerGo(poolFunc)
|
||||
callbacks = append(callbacks, ch)
|
||||
}
|
||||
fromHelper := make(chan wire_trafficPacket, 1)
|
||||
go func() {
|
||||
var buf []wire_trafficPacket
|
||||
for {
|
||||
for len(buf) > 0 {
|
||||
select {
|
||||
case <-sinfo.cancel.Finished():
|
||||
return
|
||||
case p := <-sinfo.fromRouter:
|
||||
buf = append(buf, p)
|
||||
for len(buf) > 64 { // Based on nonce window size
|
||||
util.PutBytes(buf[0].Payload)
|
||||
buf = buf[1:]
|
||||
}
|
||||
case fromHelper <- buf[0]:
|
||||
buf = buf[1:]
|
||||
}
|
||||
}
|
||||
select {
|
||||
case <-sinfo.cancel.Finished():
|
||||
return
|
||||
case p := <-sinfo.fromRouter:
|
||||
buf = append(buf, p)
|
||||
}
|
||||
}
|
||||
}()
|
||||
for {
|
||||
for len(callbacks) > 0 {
|
||||
select {
|
||||
case f := <-callbacks[0]:
|
||||
callbacks = callbacks[1:]
|
||||
f()
|
||||
case <-sinfo.cancel.Finished():
|
||||
return
|
||||
case p := <-fromHelper:
|
||||
doRecv(p)
|
||||
}
|
||||
}
|
||||
select {
|
||||
case <-sinfo.cancel.Finished():
|
||||
return
|
||||
case p := <-fromHelper:
|
||||
doRecv(p)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (sinfo *sessionInfo) sendWorker() {
|
||||
// TODO move info that this worker needs here, send updates via a channel
|
||||
// Otherwise we need to take a mutex to avoid races with update()
|
||||
var callbacks []chan func()
|
||||
doSend := func(msg FlowKeyMessage) {
|
||||
var p wire_trafficPacket
|
||||
var k crypto.BoxSharedKey
|
||||
sessionFunc := func() {
|
||||
sinfo.bytesSent += uint64(len(msg.Message))
|
||||
p = wire_trafficPacket{
|
||||
Coords: append([]byte(nil), sinfo.coords...),
|
||||
Handle: sinfo.theirHandle,
|
||||
Nonce: sinfo.myNonce,
|
||||
}
|
||||
if msg.FlowKey != 0 {
|
||||
// Helps ensure that traffic from this flow ends up in a separate queue from other flows
|
||||
// The zero padding relies on the fact that the self-peer is always on port 0
|
||||
p.Coords = append(p.Coords, 0)
|
||||
p.Coords = wire_put_uint64(msg.FlowKey, p.Coords)
|
||||
}
|
||||
sinfo.myNonce.Increment()
|
||||
k = sinfo.sharedSesKey
|
||||
}
|
||||
// Get the mutex-protected info needed to encrypt the packet
|
||||
sinfo.doFunc(sessionFunc)
|
||||
ch := make(chan func(), 1)
|
||||
poolFunc := func() {
|
||||
// Encrypt the packet
|
||||
p.Payload, _ = crypto.BoxSeal(&k, msg.Message, &p.Nonce)
|
||||
// The callback will send the packet
|
||||
callback := func() {
|
||||
// Encoding may block on a util.GetBytes(), so kept out of the worker pool
|
||||
packet := p.encode()
|
||||
// Cleanup
|
||||
util.PutBytes(msg.Message)
|
||||
util.PutBytes(p.Payload)
|
||||
// Send the packet
|
||||
sinfo.core.router.out(packet)
|
||||
}
|
||||
ch <- callback
|
||||
}
|
||||
// Send to the worker and wait for it to finish
|
||||
util.WorkerGo(poolFunc)
|
||||
callbacks = append(callbacks, ch)
|
||||
}
|
||||
for {
|
||||
for len(callbacks) > 0 {
|
||||
select {
|
||||
case f := <-callbacks[0]:
|
||||
callbacks = callbacks[1:]
|
||||
f()
|
||||
case <-sinfo.cancel.Finished():
|
||||
return
|
||||
case msg := <-sinfo.send:
|
||||
doSend(msg)
|
||||
}
|
||||
}
|
||||
select {
|
||||
case <-sinfo.cancel.Finished():
|
||||
return
|
||||
case bs := <-sinfo.send:
|
||||
doSend(bs)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -1,9 +1,11 @@
|
||||
package yggdrasil
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"net"
|
||||
|
||||
"github.com/yggdrasil-network/yggdrasil-go/src/util"
|
||||
)
|
||||
@ -13,9 +15,8 @@ var _ = linkInterfaceMsgIO(&stream{})
|
||||
|
||||
type stream struct {
|
||||
rwc io.ReadWriteCloser
|
||||
inputBuffer []byte // Incoming packet stream
|
||||
frag [2 * streamMsgSize]byte // Temporary data read off the underlying rwc, on its way to the inputBuffer
|
||||
outputBuffer [2 * streamMsgSize]byte // Temporary data about to be written to the rwc
|
||||
inputBuffer *bufio.Reader
|
||||
outputBuffer net.Buffers
|
||||
}
|
||||
|
||||
func (s *stream) close() error {
|
||||
@ -30,19 +31,24 @@ func (s *stream) init(rwc io.ReadWriteCloser) {
|
||||
// TODO have this also do the metadata handshake and create the peer struct
|
||||
s.rwc = rwc
|
||||
// TODO call something to do the metadata exchange
|
||||
s.inputBuffer = bufio.NewReaderSize(s.rwc, 2*streamMsgSize)
|
||||
}
|
||||
|
||||
// writeMsg writes a message with stream padding, and is *not* thread safe.
|
||||
func (s *stream) writeMsg(bs []byte) (int, error) {
|
||||
buf := s.outputBuffer[:0]
|
||||
buf = append(buf, streamMsg[:]...)
|
||||
buf = wire_put_uint64(uint64(len(bs)), buf)
|
||||
padLen := len(buf)
|
||||
buf = append(buf, bs...)
|
||||
buf = append(buf, streamMsg[:])
|
||||
l := wire_put_uint64(uint64(len(bs)), util.GetBytes())
|
||||
defer util.PutBytes(l)
|
||||
buf = append(buf, l)
|
||||
padLen := len(buf[0]) + len(buf[1])
|
||||
buf = append(buf, bs)
|
||||
totalLen := padLen + len(bs)
|
||||
s.outputBuffer = buf[:0] // So we can reuse the same underlying array later
|
||||
var bn int
|
||||
for bn < len(buf) {
|
||||
n, err := s.rwc.Write(buf[bn:])
|
||||
bn += n
|
||||
for bn < totalLen {
|
||||
n, err := buf.WriteTo(s.rwc)
|
||||
bn += int(n)
|
||||
if err != nil {
|
||||
l := bn - padLen
|
||||
if l < 0 {
|
||||
@ -57,26 +63,11 @@ func (s *stream) writeMsg(bs []byte) (int, error) {
|
||||
// readMsg reads a message from the stream, accounting for stream padding, and is *not* thread safe.
|
||||
func (s *stream) readMsg() ([]byte, error) {
|
||||
for {
|
||||
buf := s.inputBuffer
|
||||
msg, ok, err := stream_chopMsg(&buf)
|
||||
switch {
|
||||
case err != nil:
|
||||
// Something in the stream format is corrupt
|
||||
bs, err := s.readMsgFromBuffer()
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("message error: %v", err)
|
||||
case ok:
|
||||
// Copy the packet into bs, shift the buffer, and return
|
||||
msg = append(util.GetBytes(), msg...)
|
||||
s.inputBuffer = append(s.inputBuffer[:0], buf...)
|
||||
return msg, nil
|
||||
default:
|
||||
// Wait for the underlying reader to return enough info for us to proceed
|
||||
n, err := s.rwc.Read(s.frag[:])
|
||||
if n > 0 {
|
||||
s.inputBuffer = append(s.inputBuffer, s.frag[:n]...)
|
||||
} else if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
return bs, err
|
||||
}
|
||||
}
|
||||
|
||||
@ -108,34 +99,30 @@ func (s *stream) _recvMetaBytes() ([]byte, error) {
|
||||
return metaBytes, nil
|
||||
}
|
||||
|
||||
// This takes a pointer to a slice as an argument. It checks if there's a
|
||||
// complete message and, if so, slices out those parts and returns the message,
|
||||
// true, and nil. If there's no error, but also no complete message, it returns
|
||||
// nil, false, and nil. If there's an error, it returns nil, false, and the
|
||||
// error, which the reader then handles (currently, by returning from the
|
||||
// reader, which causes the connection to close).
|
||||
func stream_chopMsg(bs *[]byte) ([]byte, bool, error) {
|
||||
// Returns msg, ok, err
|
||||
if len(*bs) < len(streamMsg) {
|
||||
return nil, false, nil
|
||||
// Reads bytes from the underlying rwc and returns 1 full message
|
||||
func (s *stream) readMsgFromBuffer() ([]byte, error) {
|
||||
pad := streamMsg // Copy
|
||||
_, err := io.ReadFull(s.inputBuffer, pad[:])
|
||||
if err != nil {
|
||||
return nil, err
|
||||
} else if pad != streamMsg {
|
||||
return nil, errors.New("bad message")
|
||||
}
|
||||
for idx := range streamMsg {
|
||||
if (*bs)[idx] != streamMsg[idx] {
|
||||
return nil, false, errors.New("bad message")
|
||||
lenSlice := make([]byte, 0, 10)
|
||||
// FIXME this nextByte stuff depends on wire.go format, kind of ugly to have it here
|
||||
nextByte := byte(0xff)
|
||||
for nextByte > 127 {
|
||||
nextByte, err = s.inputBuffer.ReadByte()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
lenSlice = append(lenSlice, nextByte)
|
||||
}
|
||||
msgLen, msgLenLen := wire_decode_uint64((*bs)[len(streamMsg):])
|
||||
msgLen, _ := wire_decode_uint64(lenSlice)
|
||||
if msgLen > streamMsgSize {
|
||||
return nil, false, errors.New("oversized message")
|
||||
return nil, errors.New("oversized message")
|
||||
}
|
||||
msgBegin := len(streamMsg) + msgLenLen
|
||||
msgEnd := msgBegin + int(msgLen)
|
||||
if msgLenLen == 0 || len(*bs) < msgEnd {
|
||||
// We don't have the full message
|
||||
// Need to buffer this and wait for the rest to come in
|
||||
return nil, false, nil
|
||||
}
|
||||
msg := (*bs)[msgBegin:msgEnd]
|
||||
(*bs) = (*bs)[msgEnd:]
|
||||
return msg, true, nil
|
||||
msg := util.ResizeBytes(util.GetBytes(), int(msgLen))
|
||||
_, err = io.ReadFull(s.inputBuffer, msg)
|
||||
return msg, err
|
||||
}
|
||||
|
||||
@ -630,6 +630,16 @@ func switch_getPacketStreamID(packet []byte) string {
|
||||
return string(switch_getPacketCoords(packet))
|
||||
}
|
||||
|
||||
// Returns the flowlabel from a given set of coords
|
||||
func switch_getFlowLabelFromCoords(in []byte) []byte {
|
||||
for i, v := range in {
|
||||
if v == 0 {
|
||||
return in[i+1:]
|
||||
}
|
||||
}
|
||||
return []byte{}
|
||||
}
|
||||
|
||||
// Find the best port for a given set of coords
|
||||
func (t *switchTable) bestPortForCoords(coords []byte) switchPort {
|
||||
table := t.getTable()
|
||||
@ -667,19 +677,28 @@ func (t *switchTable) handleIn(packet []byte, idle map[switchPort]time.Time) boo
|
||||
var update bool
|
||||
switch {
|
||||
case to == nil:
|
||||
//nothing
|
||||
// no port was found, ignore it
|
||||
case !isIdle:
|
||||
//nothing
|
||||
// the port is busy, ignore it
|
||||
case best == nil:
|
||||
// this is the first idle port we've found, so select it until we find a
|
||||
// better candidate port to use instead
|
||||
update = true
|
||||
case cinfo.dist < bestDist:
|
||||
// the port takes a shorter path/is more direct than our current
|
||||
// candidate, so select that instead
|
||||
update = true
|
||||
case cinfo.dist > bestDist:
|
||||
//nothing
|
||||
case thisTime.Before(bestTime):
|
||||
// the port takes a longer path/is less direct than our current candidate,
|
||||
// ignore it
|
||||
case thisTime.After(bestTime):
|
||||
// all else equal, this port was used more recently than our current
|
||||
// candidate, so choose that instead. this should mean that, in low
|
||||
// traffic scenarios, we consistently pick the same link which helps with
|
||||
// packet ordering
|
||||
update = true
|
||||
default:
|
||||
//nothing
|
||||
// the search for a port has finished
|
||||
}
|
||||
if update {
|
||||
best = to
|
||||
@ -692,10 +711,9 @@ func (t *switchTable) handleIn(packet []byte, idle map[switchPort]time.Time) boo
|
||||
delete(idle, best.port)
|
||||
best.sendPacket(packet)
|
||||
return true
|
||||
} else {
|
||||
// Didn't find anyone idle to send it to
|
||||
return false
|
||||
}
|
||||
// Didn't find anyone idle to send it to
|
||||
return false
|
||||
}
|
||||
|
||||
// Info about a buffered packet
|
||||
@ -814,17 +832,23 @@ func (t *switchTable) doWorker() {
|
||||
go func() {
|
||||
// Keep taking packets from the idle worker and sending them to the above whenever it's idle, keeping anything extra in a (fifo, head-drop) buffer
|
||||
var buf [][]byte
|
||||
var size int
|
||||
for {
|
||||
buf = append(buf, <-t.toRouter)
|
||||
bs := <-t.toRouter
|
||||
size += len(bs)
|
||||
buf = append(buf, bs)
|
||||
for len(buf) > 0 {
|
||||
select {
|
||||
case bs := <-t.toRouter:
|
||||
size += len(bs)
|
||||
buf = append(buf, bs)
|
||||
for len(buf) > 32 {
|
||||
for size > int(t.queueTotalMaxSize) {
|
||||
size -= len(buf[0])
|
||||
util.PutBytes(buf[0])
|
||||
buf = buf[1:]
|
||||
}
|
||||
case sendingToRouter <- buf[0]:
|
||||
size -= len(buf[0])
|
||||
buf = buf[1:]
|
||||
}
|
||||
}
|
||||
|
||||
@ -115,6 +115,29 @@ func wire_decode_coords(packet []byte) ([]byte, int) {
|
||||
return packet[coordBegin:coordEnd], coordEnd
|
||||
}
|
||||
|
||||
// Converts a []uint64 set of coords to a []byte set of coords.
|
||||
func wire_coordsUint64stoBytes(in []uint64) (out []byte) {
|
||||
for _, coord := range in {
|
||||
c := wire_encode_uint64(coord)
|
||||
out = append(out, c...)
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
// Converts a []byte set of coords to a []uint64 set of coords.
|
||||
func wire_coordsBytestoUint64s(in []byte) (out []uint64) {
|
||||
offset := 0
|
||||
for {
|
||||
coord, length := wire_decode_uint64(in[offset:])
|
||||
if length == 0 {
|
||||
break
|
||||
}
|
||||
out = append(out, coord)
|
||||
offset += length
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
// Encodes a swtichMsg into its wire format.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user