Easier multi-arch image building

• build a multi-arch image for both arm64 and amd64
• go: use narrower UDPListener interface
• Handle random port correctly: report assigned port
• correct the ounit url
• go: remove hardcoded GOARCH to support multiarch builds
• transport: fix off-by-one in Unix socket code
• transport: max socket length is different on Linux
• transport: use the path shortener for all Unix domain sockets
• transport: move the path shortening functions to unix_unix.go
• transport: work around Unix socket path lengths on Darwin
• Add guillaumerose to maintainer list
• Upgrade linuxkit/virtsock vendoring
• Isolate vpnkit http server in a separate package

more Go code

• vpnkit: clarify that --host-ip 0.0.0.0 disables the feature
• mux: avoid desynchronising the stream over a short io.Copy
• mux: reconnect if the dialer fails
• mux: close channels after shutdown
• mux: don't send shutdown after close
• mux: allow longer paths when forwarding Unix domain sockets
• re-add vpnkit-expose-port as vpnkit-userspace-proxy
• vpnkit-userspace-proxy: bind ports on a best-effort basis
• k8s: when calling OnUpdate controller now closes removed ports
• dns: if the UDP response is over 512 bytes, truncate and set the truncated bit
• vmnet: remove dhcp pcap
• revendor virtsock: support upstream kernels without AF_HVSOCK patches
• implement the host side of the vpnkit-forwarder protocol in Go (previously was OCaml)

Lots of bugs fixed

• support multiplexing forwarded connections along one Hyper-V socket connection
• add Kubernetes controller for exposing ports
• go: move to go dep
• support building Linux static binaries (with musl)
• add a --gateway-forwards file for redirecting traffic to external services
• udp: prevent too many flows exhausting all fds on the system
• support forwarding to Unix domain sockets as well as TCP and UDP
• go: move vmnet to its own package
• test: add an nmap simulation test
• vpnkit-{9pmount,tap}-vsock: fix operation on newer kernels with AF_VSOCK
• rename environment varible from DEBUG to VPNKIT_DEBUG to avoid clashing with other software
• tcp: disable keep-alives: they were causing a space leak
• http: HTTP/1.0 should default to Connection:close
• icmp: don't log parse failures
• ntp: remove the automatic NTP forward to localhost: use the --gateway-forwards
  feature instead
• http: handle Connection:close
• http: consult the "localhost" names in the transparent proxy
• http: support both hostnames and IPs in excludes
• http: fix HTTP CONNECT
• http: respect authorization headers
• http: HEAD responses must not have bodies

Support OCaml 4.06

• add 9pmount-vsock and tap-vsock helper programs
• add missing command-line options and support running without the database
• add go library and helper tools to expose ports
• tcp: enable keep-alives
• tcp: disable nagle
• udp: drop packets with incorrect source addresses
• test: record one .pcap trace per test
• icmp: add support for ping
• dns: use persistent TCP connections but transient UDP "connections" to increase
  the request entropy
• dns: increase scalability on the Mac
• http: add a regular HTTP proxy (as well as the transparent one)
• windows: use RtlGenRandom for entropy
• windows: be more robust to Hyper-V socket failures
• fix build with -safe-string and OCaml 4.06
• support builds with the system OCaml compiler
• socket protocol updated to v22:
  • support error messages returned to client for Ethernet and Preferred_ipv4
    slirp commands
  • allow client to request an IPv4 address without encoding it in the UUID
  • v1 no longer supported, clients have to be updated. Version 22 is used to
    match the current version number in Docker for Desktop.

Fix the released package build

v0.1.1 (2017-08-17)

• simplify the build by watermarking with jbuilder subst
• fix the build of the released package archive

Update to Mirage 3 interfaces

v0.1.0 (2017-08-17)

• use Mirage 3 interfaces
• add support for ICMP ECHO_REQUESTS
• add support for transparent HTTP/HTTPS proxying