Commit Graph

52 Commits

Author SHA1 Message Date
Pat Whittingslow 157a8537a2 testing.B.Loop() standardization and StackAsync.Debug improvement (#156)
* testing.B.Loop() standardization and StackAsync.Debug heap debugging improvement

* apply @MDr164 fixes

* @MDr164 great suggestions to prevent panic and print correct mallocs
2026-07-17 11:59:27 -03:00
Pat Whittingslow 99e9d90a60 Netdev revamp (#145)
* begin working on netdev solution

* need to roll back some assumptions in next commit

* dual poll/async mode for netdev.Runner

* add wake on rx semantics

* remove TODO

* more reworking of Runner

* work on applying @MDr164 suggestions and a couple extra revamps

* add newline to end of test file
2026-07-09 14:04:10 -03:00
Pat Whittingslow 4d6363da00 bound MTU on Stack EgressIP (#151) 2026-07-01 18:46:24 -03:00
Pat Whittingslow a42f0b404c feature: ipv4 broadcast support and bugfix for reset connection reset of IPv4+IPv6 stacks (#139)
* feature: ipv4 broadcast support

* stackip4 method receiver varname
2026-06-24 16:54:41 -03:00
Pat Whittingslow 60098ad8d0 More IPv6 support and race condition fixes (#123)
* changes in preparation of wireguard impl

* suggestions by @MDr164
2026-06-17 15:10:25 -03:00
Pat Whittingslow 813b7b5e57 Lay out device/stack interfaces - Netdev/Netlink (#92)
* good code today

* add netdev.Runner

* round off APIs more

* better interface method documentation

* improve DHCP netstack API

* add pico w netdev example

* remove temp file

* keep thinking about this. this is hard :/

* fix ci

* small fixer

* working dhcp

* fix rebase API mismatches

* begin adding espradio example

* keep working on espradio, icmp not working

* fix icmp by fixing dhcp
2026-06-17 14:18:08 -03:00
Patricio Whittingslow 8efd810610 more API touch ups 2026-05-14 13:15:16 -03:00
Patricio Whittingslow d010e6a7e9 API touch ups 2026-05-14 12:59:57 -03:00
Pat Whittingslow 9fcb7e9b52 Add udp.PacketConn (#112)
* update README table and begin planning udp.PacketConn

* first attempt at packetconn implementation

* add udp.PacketConn to StackAsync and implement SocketNetip iface

* add tests for PacketConn
2026-05-14 12:48:07 -03:00
Pat Whittingslow b95eb03aa5 fix CI and rework package structure (#111) 2026-05-13 15:44:30 -03:00
Pat Whittingslow a2970b923d add ipv6 to xnet.StackAsync (#107)
* add ipv6 to xnet.StackAsync

* dns improvements

* improve DNS workings of StackAsync

* add tentative ICMPv6

* work on prefixes and fix some small bugs, plan UDP/TCP6

* fix bugs in StackAsync and ipv4.Prefix.Contains

* update arpsubtable

* completely remove legacy internet.StackIP for StackIPv4/v6

* ipv4/ipv6 tcp/udp

* add TCP6/UDP6 dialing APIs

* add xnet.Stack6 interface

* more ipv6 integration into StackAsync; various tweaks to lneto and documentation+TODOs

* add stack6 tests

* replace netip.Prefix with ipv4.Prefix where it makes sense
2026-05-13 15:31:18 -03:00
Pat Whittingslow bdbd38ab44 ipv6: StackIP and StackAsync.Addr refactor (#105)
* apply StackIP changes and internet package test passing

* fix tests and examples

* remove old Reset method on StackIP

* use encapsulate for ipv6

* add TCP over IPv6 tests
2026-05-09 16:11:31 -03:00
Pat Whittingslow aa77403a2b passive MAC learning and ARP cache revamp (#96)
* begin working on arp cache

* fix little things

* rework arp cache priority

* fix test

* keep working on ARP

* push changes before thinking about ip prefix issue

* add passive peer MAC setting

* patch egress mac with correct ethernet CRCs

* consolidate subnet learning in subnetTable type

* add tests and fix subnet table bug
2026-04-24 23:34:53 -03:00
Pat Whittingslow 66a1aec593 Add fuzz tests, rename fuzz tests and fix panic found by fuzzing (#72)
* begin adding better fuzz test

* finish adding working fuzzer

* implement mutateipv4

* fuzzer finds a panic in ICMP client on receive empty payload

* rename fuzz tests to reflect fuzz methodology
2026-04-11 11:09:51 -03:00
Pat Whittingslow 68461b4416 arp fixes for #70 (#71) 2026-04-11 11:08:06 -03:00
Patricio Whittingslow 68907ef898 up hardcoded number of IP protocols to 3 (ICMP,TCP,UDP) 2026-04-10 19:43:08 -03:00
Patricio Whittingslow 568ef2854f refactor max tcp port config values to uint16 to better represent their valid space 2026-04-09 20:13:45 -03:00
Patricio Whittingslow 548d96da95 notify if icmp cannot be used due to bad StackConfig 2026-04-09 12:44:50 -03:00
Pat Whittingslow 8813ccef82 ICMP tests and various fixes (#68)
* various icmp fixes

* improve existing tests
2026-04-09 12:31:31 -03:00
Pat Whittingslow 63f7870fe5 Add round-robin implementation (#66)
* add handler.encapsulateNode

* implement round robin handler approach

* simplify round robin implementation

* leave TODO

* internet.node touch up

* fix conflict resolve f-up

* replace certain ErrShortBuffer with ErrTruncatedFrame error
2026-04-09 09:36:17 -03:00
Pat Whittingslow ec44889896 Add ICMPv4 and lneto.StackNode and deprecate internet.StackNode (#65)
* begin adding icmp client

* rely on anon structs

* add tests

* tests passing

* icmp fleshed out

* rework icmp to include ip addr

* rename StackAsync.Demux/Encapsulate to RecvEthernet and SendEthernet

* remove legacy unreachable TCP tests

* remove uses of deprecated internet.StackNode in preference of lneto.StackNode

* documentation

* rename methods to signal no I/O happening
2026-04-09 09:07:16 -03:00
Pat Whittingslow bd645b5e1e Add mdns package and Client implementation (#55)
* add mdns

* define mdns.Client

* fix some mdns stuff

* refine dns package for use with mdns

* remove Querier and Responder and replace with Client

* add record setting methods on dns.record to reuse record buffer

* protect against unbounded client answer growth

* round off sharp mdns edges; reduce allocs

* add mutlicast to stacks; add xnet tests for mdns

* fix documentation on acceptmulticast field

* mdns working
2026-03-16 15:48:17 -03:00
Pat Whittingslow fa5ba918bb Error rewrites (#43)
* pcap: reuse Frame memory

* slog: reduce heap allocations of addresses; also prevent heap alloc of dhcp options in pcap

* dns: heapless improvement; add StackAsync buffer for more heapless operation; start thinking of errors

* errors: begin standardise errors in lneto

* errors: finish standardization of errors

* fix merge issues

* add more lneto errors to rest of package

* format errors.go
2026-02-28 16:18:27 -03:00
Pat Whittingslow 989bb6a0b9 Reduce heap allocs 2 (#46)
* reduce heap allocations in tcp logging; omit use of AppendFloat which allocates a metric sh*tton

* debugheaplog: better heap statistic logging

* heap: use string for pcap.Frame.Protocol

* add potential to eliminate Flags.String heap alloc, remove incorrect HEAP comments

* add StackAsync.DebugErr and httpraw.SetBytes

* many heap alloc reductions and replacement of bytes.Equal with internal.BytesEqual
2026-02-28 15:20:46 -03:00
Pat Whittingslow f9748da94f Reduce heap allocations (#42)
* pcap: reuse Frame memory

* slog: reduce heap allocations of addresses; also prevent heap alloc of dhcp options in pcap

* dns: heapless improvement; add StackAsync buffer for more heapless operation; start thinking of errors

* reuse function for reclaiming frames among all protocols for lower memory usage

* remove extraneous code
2026-02-27 12:38:33 -03:00
Pat Whittingslow 199d978c99 no dhcp request on zeroed address (#33) 2026-02-05 18:18:27 -03:00
ddirect fba97c990a Checksum simplification proposal (#29)
* Simplified checksum calculation and verification

* Fixed tests

* UDP: using NewBoundedFrame to create a Frame instance limited to the actual frame size.

* Minor: renamed some functions

* Commented and made more readable consecutive SetCRC calls.

* Fixed icmp checksum calculation after rebase

* Replaced NewBoundedFrame with explicit validation
2026-02-05 17:35:42 -03:00
soypat c518b7e7fe add ethernet tx FCS to StackAsyncConfig 2026-01-29 19:14:40 +01:00
Pat Whittingslow 85f018a02c ethernet: MTU semantic meaning corrections, add FCS logic (#28) 2026-01-26 16:45:35 -03:00
Patricio Whittingslow f51cdf74b6 fix couple bugs in ARP and add benchmarks 2026-01-13 10:15:18 -03:00
Patricio Whittingslow c4ab7cd012 reproduce dns bug in test 2026-01-12 08:53:29 -03:00
soypat 2e8b3e2ddd bugfix: fix doublelock in xnet.StackAsync 2026-01-07 19:41:43 -03:00
Patricio Whittingslow 88d5f111da add dns empty response error 2026-01-05 11:42:01 -03:00
Pat Whittingslow 018f9258ac Add tcp.Listener (#15)
* begin reviewing TCP listener

* begin adding listener tests

* adding TestExchange implementation

* split out legacy and Step tests

* move listener to tcp package

* fix up tcp tests taking very long

* add xnet.TCPPool and work on TCPPool semantics

* xnet: TCPPool only accepts established connections

* xnet: getting to bottom of panic in xnet.Listener

* xnet: improve listener tests

* fix several data races in testing fixtures

* fix more synchronization things in listener test

* finalize tcplistener test
2026-01-03 12:41:57 -03:00
Patricio Whittingslow 8307403c5c add subnet to StackAsync and add test for local arp resolving 2025-12-30 18:00:50 -03:00
Pat Whittingslow db8c7c1322 Merge pull request #11 from ddirect/local-arp-tcp-fixes
local-arp-tcp branch fixes
2025-12-30 16:30:20 -03:00
Patricio Whittingslow 890fd33b22 do not increment ARP connectionID on IP addr update 2025-12-28 15:43:12 -03:00
Patricio Whittingslow a2886423a2 fix StackAsync losing ARP handler on reset during DHCP result assimilation 2025-12-28 15:33:10 -03:00
ddirect b9fbe0d25d Minor fixes 2025-12-28 18:30:47 +02:00
Patricio Whittingslow f6bc73ee6c apply some of @ddirect suggestions 2025-12-22 18:41:14 -03:00
Patricio Whittingslow 5e631a1b3d StackPorts: set MAC destination when node has MAC 2025-12-19 01:04:18 -03:00
Patricio Whittingslow 1554b89a08 StackNode refactor: add offsetToIP argument to Encapsulate 2025-12-19 00:38:28 -03:00
Patricio Whittingslow 7042a653a6 add lock to tcp.Conn; claude Fix ARP handler not responding after DHCP
Co-authored-by: Claude <noreply@anthropic.com>
2025-11-09 14:16:23 -03:00
Patricio Whittingslow 92a245957b keep working on xnet TCP 2025-10-23 21:18:25 -03:00
Patricio Whittingslow 7ac4d556c2 reset xnet statistics 2025-10-22 23:55:09 -03:00
Patricio Whittingslow bb4053647d do not crash if no tcp connections are desired 2025-10-22 19:19:32 -03:00
Patricio Whittingslow d731106c51 add xnet stack tcp handshake test 2025-10-18 19:51:57 -03:00
Patricio Whittingslow 86fc8fdaf5 refactor stack TCP stuff; begin adding TCP test 2025-10-17 23:36:48 -03:00
soypat d254f3ae80 dhcp subnet prefix fix 2025-08-20 19:25:08 -03:00
soypat 7470324b49 add statistics and MTU method to stack 2025-08-16 22:55:27 -03:00