[new release] tcpip (3.7.0)

CHANGES:

* Use `Lwt_dllist` instead of `Lwt_sequence`, due to the latter being deprecated
  upstream in Lwt (ocsigen/lwt#361) (mirage/mirage-tcpip#388 by @avsm).
* Remove arpv4 and ethif sublibraries, now provided by ethernet and arp-mirage
  opam packages (mirage/mirage-tcpip#380 by @hannesm).
* Upgrade from jbuilder to dune (mirage/mirage-tcpip#391 @avsm)
* Switch from topkg to dune-release (mirage/mirage-tcpip#391 @avsm)

### v3.6.0 (2019-01-04)

* The IPv4 implementation now supports reassembly of IPv4 fragments (mirage/mirage-tcpip#375 by @hannesm)
  - using a LRU cache using up to 256KB memory
  - out of order fragments are supported
  - maximum number of fragments is 16
  - timeout between first and last fragment is 10s
  - overlapping fragments are dropped

* IPv6: use correct timeout value after first NS message (mirage/mirage-tcpip#334 @djs55)

* Use `Ipaddr.pp` instead of `Ipaddr.pp_hum` due to upstream
  interface changes (mirage/mirage-tcpip#385 @hannesm).

### v3.5.1 (2018-11-16)

* socket stack (tcp/udp): catch exception in recv_from and accept (mirage/mirage-tcpip#376 @hannesm)
* use mirage-random-test for testing (Stdlibrandom got removed from mirage-random>1.2.0, mirage/mirage-tcpip#377 @hannesm)

### v3.5.0 (2018-09-16)

* Ipv4: require Mirage_random.C, used for generating IPv4 identifier instead of using OCaml's stdlib Random directly (mirage/mirage-tcpip#371 @hannesm)
* Tcp: use entire 32 bits at random for the initial sequence number, thanks to Spencer Michaels and Jeff Dileo of NCC Group for reporting (mirage/mirage-tcpip#371 @hannesm)
* adjust to mirage-protocols 1.4.0 and mirage-stack 1.3.0 changes (mirage/mirage-tcpip#371 @hannesm)
  Arp no longer contains the type alias ethif
  Ethif no longer contains the type alias netif
  Static_ipv4 no longer contains the type alias ethif and prefix
  Ipv6 no longer contains the type alias ethif and prefix
  Mirage_protocols_lwt.IPV4 no longer contains the type alias ethif
  Mirage_protocols_lwt.UDPV4 and TCPV4 no longer contain the type alias ip
* remove unused types: 'a config, netif, and id from socket and direct stack (mirage/mirage-tcpip#371 @hannesm)
* remove usage of Result, depending on OCaml >= 4.03.0 (mirage/mirage-tcpip#372 @hannesm)

### v3.4.2 (2018-06-15)

Note the use of the new TCP keep-alive feature can cause excessive amounts
of memory to be used in some circumstances, see
  mirage/mirage-tcpip#367

* Ensure a zero UDP checksum is sent as 0xffff, not 0x0000 (mirage/mirage-tcpip#359 @stedolan)
* Avoid leaking a file descriptor in the socket stack if the connection fails (mirage/mirage-tcpip#363 @hannesm)
* Avoid raising an exception with `Lwt.fail` when `write` fails in the socket stack (mirage/mirage-tcpip#363 @hannesm)
* Ignore `EBADF` errors in `close` in the socket stack (mirage/mirage-tcpip#366 @hannesm)
* Emit a warning when TCP keep-alives are used (mirage/mirage-tcpip#368 @djs55)

### v3.4.1 (2018-03-09)

* expose tcp_socket_options in the socket stack, fixing downstream builds (mirage/mirage-tcpip#356 @yomimono)
* add missing dependencies and constraints (mirage/mirage-tcpip#354 @yomimono, mirage/mirage-tcpip#353 @rgrinberg)
* remove leftover ocamlbuild files (mirage/mirage-tcpip#353 @rgrinberg)

### v3.4.0 (2018-02-15)

* Add support for TCP keepalives (mirage/mirage-tcpip#338 @djs55)
* Fix TCP deadlock (mirage/mirage-tcpip#343 @mfp)
* Update the CI to test OCaml 4.04, 4.05, 4.06 (mirage/mirage-tcpip#344 @yomimono)

### v3.3.1 (2017-11-07)

* Add an example for user-space `ping`, and some socket ICMPv4 fixes (mirage/mirage-tcpip#336 @djs55)
* Make tcpip safe-string-safe (and buildable by default on OCaml 4.06.0) (mirage/mirage-tcpip#341 @djs55)

### v3.3.0 (2017-08-08)

* Test with current mirage-www master (mirage/mirage-tcpip#323 @yomimono)
* Improve the Tcp.Wire API (mirage/mirage-tcpip#325 @samoht)
* Add dependency from stack-unix to io-page-unix (@avsm)
* Replace dependency on cstruct.lwt with cstruct-lwt (mirage/mirage-tcpip#322 @yomimono)
* Update to lwt 3.0 (mirage/mirage-tcpip#326 @samoht)
* Replace oUnit with alcotest (mirage/mirage-tcpip#329 @samoht)
* Fix stub linking on Xen (mirage/mirage-tcpip#332 @djs55)
* Add support for ICMP sockets on Windows (mirage/mirage-tcpip#333 @djs55)

### v3.2.0 (2017-06-26)

* port to jbuilder. Build time is now roughly 4-5x faster than the old oasis-based build system.
* packs have been replaced by module aliases.

### v3.1.4 (2017-06-12)

* avoid linking to cstruct.ppx in the compiled library and only use it at build time (mirage/mirage-tcpip#316 @djs55)
* use improved packet size support in `mirage-vnetif>=0.4.0` to test the MTU fixes in mirage/mirage-tcpip#313.

### v3.1.3 (2017-05-23)

* involve the IP layer's MTU in the TCP MSS calculation (hopefully correctly) (mirage/mirage-tcpip#313, by @yomimono)

### v3.1.2 (2017-05-14)

* impose a maximum TCP MSS of 1460 to avoid sending over-large datagrams on 1500 MTU links
  (mirage/mirage-tcpip#309, by @hannesm)

### v3.1.1 (2017-05-14)

* fix parsing 20-byte cstructs as ipv4 packets (mirage/mirage-tcpip#307, by @yomimono)
* udp: payload length parse fix (mirage/mirage-tcpip#307, by @yomimono)
* support lwt >= 2.7.0 (mirage/mirage-tcpip#308, by @djs55)

### v3.1.0 (2017-03-14)

* implement MTU setting and querying in the Ethernet module (compatibility with mirage-protocols version 1.1.0), and use this value to inform TCP's MSS. (mirage/mirage-tcpip#288, by @djs55)
* rename the ~payload argument of TCP/UDP marshallers to `~payload_len`, in an attempt to clarify that the payload will not be copied to the Cstruct.t returned by these functions (mirage/mirage-tcpip#301, by @talex5)
* functorize ipv6 over a random implementation (mirage/mirage-tcpip#298, by @olleolleolle and @hannesm)
* add tests for sending and receiving UDP packets over IPv6 (mirage/mirage-tcpip#300, by @mattgray)
* avoid float in TCP RTO calculations. (mirage/mirage-tcpip#295, by @olleolleolle and @mattgray)
* numerous bugfixes in header marshallers and unmarshallers (mirage/mirage-tcpip#301, by @talex5 and @yomimono)
* replace polymorphic equality in `_packet.equals` functions (mirage/mirage-tcpip#302, by @yomimono)

### v3.0.0 (2017-02-23)

* adapt to MirageOS 3 API changes (*many* PRs, from @hannesm, @samoht, and @yomimono):
  - replace error polyvars in many functions with result types
  - define and use error types
  - `connect` in various modules now returns the device directly or raises an exception
  - refer to mirage-protocols and mirage-stacks, rather than mirage-types
* if no UDP source port is given to UDP.write, choose a random one (mirage/mirage-tcpip#272, by @hannesm)
* remove `Ipv4.Routing.No_route_to_destination_address` exception; treat routing failures as normal packet loss in TCP (mirage/mirage-tcpip#269, by @yomimono)
* Ipv6.connect takes a list of IPs (mirage/mirage-tcpip#268, by @yomimono)
* remove exception "Refused" in TCP (mirage/mirage-tcpip#267, by @yomimono)
* remove DHCP module. Users may be interested in the replacement charrua-core (mirage/mirage-tcpip#260, by @yomimono)
* move Ipv4 to Static\_ipv4, which can be used by other IPv4 modules with their own configuration logic (mirage/mirage-tcpip#260, by @yomimono)
* remove `mode` from STACKV4 record and configuration; Ipv4.connect now requires address parameters and the module exposes no methods for modifying them. (mirage/mirage-tcpip#260, by @yomimono)
* remove unused `id` types no longer required by mirage-types (mirage/mirage-tcpip#255, by @yomimono)
* overhaul how `random` is used and handled (mirage/mirage-tcpip#254 and others, by @hannesm)
* fix redundant `memset` that zeroed out options in Tcp\_packet.Marshal.into\_cstruct (mirage/mirage-tcpip#250, by @balrajsingh)
* add vnetif backend for triggering fast retransmit in iperf tests (mirage/mirage-tcpip#248, by @MagnusS)
* fixes for incorrect timer values (mirage/mirage-tcpip#247, by @balrajsingh)
* add vnetif backend that drops packets with no payload (mirage/mirage-tcpip#246, by @MagnusS)
* fix a race when closing test pcap files (mirage/mirage-tcpip#246, by @MagnusS)

### v2.8.1 (2016-09-12)

* Set the TCP congestion window correctly when going into fast-recovery mode. (mirage/mirage-tcpip#244, by @balrajsingh)
* When TCP packet loss is discovered by timeout, allow transition into fast-recovery mode. (mirage/mirage-tcpip#244, by @balrajsingh)

### v2.8.0 (2016-04-04)

* Provide an implementation for the ICMPV4 module type defined in mirage-types 2.8.0.  Remove default ICMP handling from the IPv4 module, but preserve it in tcpip-stack-direct. (mirage/mirage-tcpip#195 by @yomimono)
* Explicitly require the use of an OCaml compiler >= 4.02.3 . (mirage/mirage-tcpip#195 by @yomimono)
* Explicitly depend on `result`. (mirage/mirage-tcpip#195 by @yomimono)

### v2.7.0 (2016-03-20)

* Raise Invalid\_argument if given an invalid port number in listen_{tcp,udp}v4
  (mirage/mirage-tcpip#173 by @matildah and mirage/mirage-tcpip#175 by @hannesm)
* Improve TCP options marshalling/unmarshalling (mirage/mirage-tcpip#174 by @yomimono)
* Add state tests and fixes for closure conditions (mirage/mirage-tcpip#177 mirage/mirage-tcpip#176 by @yomimono)
* Remove bogus warning (mirage/mirage-tcpip#178 by @talex5)
* Clean up IPv6 stack (mirage/mirage-tcpip#179 by @nojb)
* RST checking from RFC5961 (mirage/mirage-tcpip#182 by @ppolv)
* Transform EPIPE exceptions into `Eof (mirage/mirage-tcpip#183 by @djs55)
* Improve error strings in IPv4 (mirage/mirage-tcpip#184 by @yomimono)
* Replace use of cstruct.syntax with cstruct.ppx (mirage/mirage-tcpip#188 by @djs55)
* Make the Unix subpackages optional, so the core builds on Win32
  (mirage/mirage-tcpip#191 by @djs55)

### v2.6.1 (2015-09-15)

* Add optional arguments for settings in ip v6 and v4 connects (mirage/mirage-tcpip#170, by @Drup)
* Expose `Ipv4.Routing.No_route_to_destination_address` (mirage/mirage-tcpip#166, by @yomimono)

### v2.6.0 (2015-07-29)

* ARP now handles ARP frames, not Ethernet frames with ARP payload
  (mirage/mirage-tcpip#164, by @hannesm)
* Check length of received ethernet frame to avoid cstruct exceptions
  (mirage/mirage-tcpip#117, by @hannesm)
* Pull arpv4 module out of ipv4. Also add unit-tests for the newly created
  ARP library  (mirage/mirage-tcpip#155, by @yomimono)

### v2.5.1 (2015-07-07)

* Fix regression introduced in 2.5.0 where packet loss could lead to the
  connection to become very slow (mirage/mirage-tcpip#157, MagnusS, @talex5, @yomimono and
  @balrajsingh)
* Improve the tests: more logging, more tracing and compile to native code when
  available, etc (@MagnusS and @talex5)
* Do not raise `Invalid_argument("Lwt.wakeup_result")` everytime a connection
  is closed. Also now pass the raised exceptions to `Lwt.async_exception_hook`
  instead of ignoring them transparently, so the user can decide to shutdown
  its application if something wrong happens (mirage/mirage-tcpip#153, mirage/mirage-tcpip#156, @yomomino and @talex5)
* The `channel` library now lives in a separate repository and is released
  separately (mirage/mirage-tcpip#159, @samoht)

### v2.5.0 (2015-06-10)

* The test runs now produce `.pcap` files (mirage/mirage-tcpip#141, by @MagnusS)
* Strip trailing bytes from network packets (mirage/mirage-tcpip#145, by @talex5)
* Add tests for uniform packet loss (mirage/mirage-tcpip#147, by @MagnusS)
* fixed bug where in case of out of order packets the ack and window were set
  incorrectly (mirage/mirage-tcpip#140, mirage/mirage-tcpip#146)
* Properly handle RST packets (mirage/mirage-tcpip#107, mirage/mirage-tcpip#148)
* Add a `Log` module to control at runtime the debug statements which are
  displayed (mirage/mirage-tcpip#142)
* Writing in a PCB which does not have the right state now returns an error
  instead of blocking (mirage/mirage-tcpip#150)

### v2.4.3 (2015-05-05)

* Fix infinite loop in `Channel.read_line` when the line does not contain a CRLF
  sequence (mirage/mirage-tcpip#131)

### v2.4.2 (2015-04-29)

* Fix a memory leak in `Channel` (mirage/mirage-tcpip#119, by @yomimono)
* Add basic unit-test for channels (mirage/mirage-tcpip#119, by @yomimono)
* Add alcotest testing templates
* Modernize Travis CI scripts

### v2.4.1 (2015-04-21)

* Merge between 2.4.0 and 2.3.1

### v2.4.0 (2015-03-24)

* ARP improvements (mirage/mirage-tcpip#118)

### v2.3.1 (2015-03-31)

* Do not raise an assertion if an IP frame has extra trailing bytes (mirage/mirage-tcpip#221).

### v2.3.0 (2015-03-09)

* Fix `STACKV4` for the `DEVICE` signature which has `connect` removed
  (in Mirage types 2.3+).

### v2.2.3 (2015-03-09)

* Add ICMPv6 error reporting functions (mirage/mirage-tcpip#101)
* Add universal IP address converters (mirage/mirage-tcpip#108)
* Add `error_message` functions for human-readable errors (mirage/mirage-tcpip#98)
* Improve debug logging for ICMP Destination Unreachable packets.
* Filter incoming frames by MAC address to stop sending unnecessary RSTs. (mirage/mirage-tcpip#114)
* Unhook unused modules `Sliding_window` and `Profiler` from the build. (mirage/mirage-tcpip#112)
* Add an explicit `connect` method to the signatures. (mirage/mirage-tcpip#100)

### v2.2.2 (2015-01-11)

* Readded tracing and ARP fixes which got accidentally reverted in the IPv6
  merge. (mirage/mirage-tcpip#96)

### v2.2.1 (2014-12-20)

* Use `Bytes` instead of `String` to begin the `-safe-string` migration in OCaml
  4.02.0 (mirage/mirage-tcpip#93).
* Remove dependency on `uint` to avoid the need for a C stub (mirage/mirage-tcpip#92).

### v2.2.0 (2014-12-18)

Add IPv6 support. This changeset minimises interface changes to the existing
`STACKV4` interfaces to faciliate a progressive merge.  The only visible
interface changes are:

* `IPV4.set_ipv4_*` functions have been renamed `IPV4.set_ip_*` because they
  are shared between IPV4 and IPV6.
* `IPV4.get_ipv4` and `get_ipv4_netmask` now return a `list` of `Ipaddr.V4.t`
  (again because this is the common semantics with IPV6.)
* Several types that had `v4` in their names (like `IPV4.ipv4addr`) have lost
  that particle.

### v2.1.1 (2014-12-12)

* Improve console printing for the DHCP client to output line
  breaks properly on Xen consoles.

### v2.1.0 (2014-12-07)

* Build Xen stubs separately, with `CFLAGS` from `mirage-xen` 2.1.0+.
  This allows us to use the red zone under x86_64 Unix again.
* Adding tracing labels and counters, which introduces a new dependency on the
  `mirage-profile` package.

### v2.0.3 (2014-12-05)

* Fixed race waiting for ARP response (mirage/mirage-tcpip#86).
* Move the the code that configures IPv4 address, netmask and gateways
  after receiving a successful lease out of the `Dhcp_clientv4` module
  and into `Stackv4` (mirage/mirage-tcpip#87)

### v2.0.2 (2014-12-01)

* Add IPv4 multicast to MAC address mapping in IPv4 output processing
  (mirage/mirage-tcpip#81 from Luke Dunstan).
* Improve formatting of DHCP console logging, including printing out options
  (mirage/mirage-tcpip#83).
* Build with -mno-red-zone on x86_64 to avoid stack corruption on Xen (mirage/mirage-tcpip#80).

### v2.0.1 (2014-11-04)

* Fixed race condition in the signalling between the rx/tx threads under load.
* Experimentally switch to immediate ACKs in TCPv4 by default instead of delayed ones.

### v2.0.0 (2014-11-02)

* Moved 1s complement checksum C code here from mirage-platform.
* Depend on `Console_unix` and `Console_xen` instead of `Console`.
* [socket] Do not return an `Eof` when writing 0-length buffer (mirage/mirage-tcpip#76).
* [socket] Accept callbacks now run in async threads instead of being serialised
  (mirage/mirage-tcpip#75).

### v1.1.6 (2014-07-20)

* Quieten down the stack logging rate by not announcing IPv6 packet discards.
* Raise exception `Bad_option` for unparseable or invalid TCPv4 options (mirage/mirage-tcpip#57).
* Fix linking error with module `Tcp_checksum` by lifting it into top library
  (mirage/mirage-tcpip#60).
* Add `opam` file to permit easier local pinning, and fix Travis to use this.

### v1.1.5 (2014-06-18)

* Ensure that DHCP completes before the application is started, so that
  unikernels that establish outgoing connections can do so without a race.
  (fix from Mindy Preston in mirage/mirage-tcpip#53, followup in mirage/mirage-tcpip#55)
* Add `echo`, `chargen` and `discard` services into the `examples/`
  directory. (from Mindy Preston in mirage/mirage-tcpip#52).

### v1.1.4 (2014-06-03)

* [tcp] Fully process the last `ACK` in a 3-way handshake for server connections.
  This ensures that a `FIN` is correctly transmitted upon application-initiated
  connection close. (fix from Mindy Preston in mirage/mirage-tcpip#51).

### v1.1.3 (2014-03-01)

* Expose IPV4 through the STACKV4 interface.

### v1.1.2 (2014-03-27)

* Fix DHCP variable length option parsing for MTU responses, which
  in turns improves robustness on Amazon EC2 (fix from @yomimono
  via mirage/mirage-tcpip#48)

### v1.1.1 (2014-02-21)

* Catch and ignore top-level socket exceptions (mirage/mirage-tcpip#219).
* Set `SO_REUSEADDR` on listening sockets for Unix (mirage/mirage-tcpip#218).
* Adapt the Stack interfaces to the v1.1.1 mirage-types interface
  (see mirage/mirage#226 for details).

### v1.1.0 (2014-02-03)

* Rewrite of the library as a set of functors that parameterize the
  stack across the `V1_LWT` module types from Mirage 1.1.x.  This removes
  the need to compile separate Xen and Unix versions of the stack.

### v0.9.5 (2013-12-08)

* Build for either Xen or Unix, depending on the value of the `OS` envvar.
* Shift to the `mirage-types` 0.5.0+ interfaces, which breaks the
  socket backend (temporarily).
* Port the direct stack to the new interfaces.
* Add Travis CI scripts.

### v0.9.4 (2013-08-09)

* Use the `Ipaddr` external library and remove the Homebrew
  equivalents in `Nettypes`.

### v0.9.3 (2013-07-18)

* Changes in module Manager: Removed some functions from the `.mli
  (plug/unplug) and added some modifications in the way the Manager
  interacts with the underlying module Netif. The Netif.create function
  does not take a callback anymore.

### v0.9.2 (2013-07-09)

* Improve TCP state machine for connection teardown.
* Limit fragment number to 8, and coalesce buffers if it goes higher.
* Adapt to mirage-platform-0.9.2 API changes.

### v0.9.1 (2013-06-12)

* Depend on mirage-platform-0.9.1 direct tuntap interfaces.
* Version bump to catch up with mirage-platform.

### v0.5.2 (2013-02-08)

* Encourage scatter-gather I/O all the time, rather than playing tricks
  with packet header buffers. This simplifies the output path considerably
  and cuts minor heap allocations down.
* Install the packed `cmx` along with the `cmxa` to ensure that the
  compiler can do cross-module optimization (this is not a fatal error,
  but will impact performance if the `cmx` file is not present).

### v0.5.1 (2012-12-20)

* Update socket stack to use Cstruct 0.6.0 API

### v0.5.0 (2012-12-20)

* Update Cstruct API to 0.6.0
* [tcp] write now blocks if the write buffer and write window are full

### v0.4.1 (2012-12-14)

* Add iperf self-test that creates two VIFs and transmits across
  them. This is a useful local test which stresses the bridge
  code using just one VM.
* Add support for attaching existing devices when initialising the
  network manager, via an optional `attached` parameter.
* Constrain TCP connect to be a `unit Lwt.t` instead of a polymorphic
  return value.
* Expose IPv4 netmask function.
* Reduce ARP verbosity to the console.
* Fix TCP fast recovery to wait until all in-flight packets are
  acked, rather then exiting early.

### v0.4.0 (2012-12-11)

* Require OCaml-4.00.0 or higher, and add relevant build fixes
  to deal with module packing.

### v0.3.1 (2012-12-10)

* Fix the DHCP client marshalling for IPv4 addresses.
* Expose the interface MAC address in the Manager signature.
* Tweak TCP ISN calculation to be more friendly on a 32-bit host.
* Add Manager.create ?devs to control the number of Netif devices
  constructed by default.
* Add Ethif.set/disable_promiscuous to permit directly tapping
  a network interface.

### v0.3.0 (2012-09-04)

* Initial public release.

Author: avsm

packages/tcpip/tcpip.3.7.0/opam

@@ -0,0 +1,72 @@
+opam-version: "2.0"
+maintainer:   "anil@recoil.org"
+homepage:     "https://github.com/mirage/mirage-tcpip"
+dev-repo:     "git+https://github.com/mirage/mirage-tcpip.git"
+bug-reports:  "https://github.com/mirage/mirage-tcpip/issues"
+doc:          "https://mirage.github.io/mirage-tcpip/"
+authors: [
+  "Anil Madhavapeddy" "Balraj Singh" "Richard Mortier" "Nicolas Ojeda Bar"
+  "Thomas Gazagnaire" "Vincent Bernardoff" "Magnus Skjegstad" "Mindy Preston"
+  "Thomas Leonard" "David Scott" "Gabor Pali" "Hannes Mehnert" "Haris Rotsos"
+  "Kia" "Luke Dunstan" "Pablo Polvorin" "Tim Cuthbertson" "lnmx" "pqwy" ]
+license: "ISC"
+tags: ["org:mirage"]
+
+build: [
+  ["dune" "subst"] {pinned}
+  ["dune" "build" "-p" name "-j" jobs]
+  ["dune" "runtest" "-p" name "-j" jobs] {with-test}
+]
+
+depends: [
+  "dune"     {build & >= "1.0"}
+  "configurator" {build}
+  "ocaml" {>= "4.03.0"}
+  "rresult" {>= "0.5.0"}
+  "cstruct" {>= "3.0.2"}
+  "cstruct-lwt"
+  "mirage-net" {>= "1.0.0"}
+  "mirage-net-lwt" {>= "1.0.0"}
+  "mirage-clock" {>= "1.2.0"}
+  "mirage-random" {>= "1.0.0"}
+  "mirage-clock-lwt" {>= "1.2.0"}
+  "mirage-stack-lwt" {>= "1.3.0"}
+  "mirage-protocols" {>= "1.4.0"}
+  "mirage-protocols-lwt" {>= "1.4.0"}
+  "mirage-time-lwt" {>= "1.0.0"}
+  "ipaddr" {>= "3.0.0"}
+  "macaddr"
+  "mirage-profile" {>= "0.5"}
+  "fmt"
+  "lwt" {>= "3.0.0"}
+  "lwt-dllist"
+  "logs" {>= "0.6.0"}
+  "duration"
+  "io-page-unix"
+  "randomconv"
+  "ethernet"
+  "mirage-flow" {with-test & >= "1.2.0"}
+  "mirage-vnetif" {with-test & >= "0.4.0"}
+  "alcotest" {with-test & >="0.7.0"}
+  "pcap-format" {with-test}
+  "mirage-clock-unix" {with-test & >= "1.2.0"}
+  "mirage-random-test" {with-test}
+  "arp-mirage" {with-test}
+  "lru"
+]
+synopsis: "OCaml TCP/IP networking stack, used in MirageOS"
+description: """
+`mirage-tcpip` provides a networking stack for the [Mirage operating
+system](https://mirage.io). It provides implementations for the following module types
+(which correspond with the similarly-named protocols):
+
+* IP (via the IPv4 and IPv6 modules)
+* ICMP
+* UDP
+* TCP
+"""
+url {
+  src:
+    "https://github.com/mirage/mirage-tcpip/releases/download/v3.7.0/tcpip-v3.7.0.tbz"
+  checksum: "md5=21ec267e2d1f4a30c45c4f052159b03d"
+}