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Other bug fixes include (in ) and adapt to charrua 1.3.0 and arp 2.3.0 changes ().īy Martin Lucina, Hannes Mehnert MirageOS 3.9.0 release bug (fun f -> f "read: %d bytes:\n%s" (Cstruct.len b) + | Error e -> Logs.warn (fun f -> f "Error reading data fromĮstablished connection: %a" S.TCP.pp_error e) Lwt.return_unit | Error e -> Logs.warn (fun f -> f "Error reading data fromĮstablished connection: %a" S.TCPV4.pp_error e) Lwt.return_unit | Ok `Eof -> (fun f -> f "Closing connection!") (fun f -> f "new tcp connection from IP %s on port %d" let dst, dst_port = S.TCPV4.dst flow in +module Main (S: Mirage_stack.V4V6) = struct module Main (S: Mirage_stack.V4) = struct +let stack = generic_stackv4v6 default_networkĭiff -git a/device-usage/network/unikernel.ml let stack = generic_stackv4 default_network +let main = foreign ~keys: "Unikernel.Main" let main = foreign ~keys: "Unikernel.Main" job) Key.(create "port" Arg.(opt int 8080 doc)) Let doc = ~doc:"The TCP port on which to listen for diff -git a/device-usage/network/config.ml b/device-usage/network/config.ml If you're ready to experiment with the dual stack: below is a diff for our basic network example (from mirage-skeleton/device-usage/network) replacing IPv4 with a dual stack, and the tlstunnel unikernel commitĬhanged tlstunnel from IPv4 stack to dual stack.
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Arp.ip_address is available (for a dual Ipaddr.t).Some parts of the Mirage_key module were unified as well: The ipv6_config record was adjusted in the same fashion as the ipv4_config type: it is now a record of a network (V6.Prefix.t) and gateway (V6.t option).New "v4v6" types for IP protocols and stacks.Please also note that the default IPv4 network configuration no longer uses 10.0.0.1 as default gateway (since there was no way to unset the default gateway ).įor unikernel developers, there are some API changes in the Mirage module I'm keen to remove the stackv4 & stackv6 in future versions, and always develop with dual stack (leaving it to configuration & startup time to decide whether to enable ipv4 and ipv6). now there are both development-time (stackv4 vs stackv6 vs stackv4v6) choices, as well as the run-time choice (via boot parameter). While at it, we unified the boot arguments between the different targets: namely, on Unix (when using the socket stack), you can now pass "-ipv4=127.0.0.1/24" to the same effect as the direct stack: only listen on 127.0.0.1 (the subnet mask is ignored for the Unix socket stack).Ī dual stack unikernel has "-ipv4-only=BOOL" and "-ipv6-only=BOOL" parameters, so a unikernel binary could support both Internet Protocol versions, while the operator can decide which protocol version to use. Configuring a static IPv6 address is also possible (with We expect there to be bugs lingering around, but duplicate address detection (neighbour solicitation and advertisements) has been implemented, and (unless "-accept-router-advertisement=false") router advertisements are decoded and used to configure the IPv6 part of the stack.
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After we managed to fix some bugs and add some test cases, and writing more code to setup IPv6-only and dual stacks, we are eager to share this support for MirageOS in a released version. Some months ago, and got excited to use it. Since a long time, IPv6 code was around in our TCP/IP stack (thanks to who developed it in 2014). IPv6 and dual (IPv4 and IPv6) stack support By Hannes Mehnert MirageOS 3.10 release - IPv6