smoltcp/CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

• Remove IpRepr::Unspecified (#579)
• Remove IpVersion::Unspecified
• Remove IpAddress::Unspecified
• When sending packets with a raw socket, the source IP address is sent unmodified (it was previously replaced with the interface's address if it was unspecified).

0.8.1 - 2022-05-12

• Remove unused rand_core dep. (#589)
• Use socklen_t instead of u32 for RawSocket bind() parameter. Fixes build on 32bit Android. (#593)
• Propagate phy::RawSocket send errors to caller (#588)
• Fix Interface set_hardware_addr, get_hardware_addr for ieee802154/6lowpan. (#584)

0.8.0 - 2021-12-11

• Minimum Supported Rust Version (MSRV) bumped from 1.40 to 1.56
• Add support for IEEE 802.15.4 + 6LoWPAN medium (#469)
• Add support for IP medium (#401)
• Add defmt logging supprt (#455)
• Add RNG infrastructure (#547, #573)
• Add Context struct that must be passed to some socket methods (#500)
• Remove SocketSet, sockets are owned by Interface now. (#557, #571)
• TCP: Add Nagle's Algorithm. (#500)
• TCP crash and correctness fixes:
  • Add Nagle's Algorithm. (#500)
  • Window scaling fixes. (#500)
  • Fix delayed ack causing ack not to be sent after 3 packets. (#530)
  • Fix RTT estimation for RTTs longer than 1 second (#538)
  • Fix infinite loop when remote side sets a MSS of 0 (#538)
  • Fix infinite loop when retransmit when remote window is 0 (#538)
  • Fix crash when receiving a FIN in SYN_SENT state (#538)
  • Fix overflow crash when receiving a wrong ACK seq in SYN_RECEIVED state (#538)
  • Fix overflow crash when initial sequence number is u32::MAX (#538)
  • Fix infinite loop on challenge ACKs (#542)
  • Reply with RST to invalid packets in SynReceived state. (#542)
  • Do not abort socket when receiving some invalid packets. (#542)
  • Make initial sequence number random. (#547)
  • Reply with RST to ACKs with invalid ackno in SYN_SENT. (#522)
• ARP fixes to deal better with broken networks:
  • Fill cache only from ARP packets, not any packets. (#544)
  • Fill cache only from ARP packets directed at us. (#544)
  • Reject ARP packets with a source address not in the local network. (#536, #544)
  • Ignore unknown ARP packets. (#544)
  • Flush neighbor cache on IP change (#564)
• UDP: Add close() method to unbind socket. (#475, #482)
• DHCP client improvements:
  • Refactored implementation to improve reliability and RFC compliance (#459)
  • Convert to socket (#459)
  • Added max_lease_duration option (#459)
  • Do not set the BROADCAST flag (#548)
  • Add option to ignore NAKs (#548)
• DHCP wire:
  • Fix DhcpRepr::buffer_len not accounting for lease time, router and subnet options (#478)
  • Emit DNS servers in DhcpRepr (#510)
  • Fix incorrect bit for BROADCAST flag (#548)
• Improve resilience against packet ingress processing errors (#281, #483)
• Implement std::error::Error for smoltcp::Error (#485)
• Update managed from 0.7 to 0.8 (442)
• Fix incorrect timestamp in PCAP captures (#513)
• Use microseconds instead of milliseconds in Instant and Duration (#514)
• Expose inner Device in PcapWriter (#524)
• Fix assert with any_ip + broadcast dst_addr. (#533, #534)
• Simplify PcapSink trait (#535)
• Fix wrong operation order in FuzzInjector (#525, #535)

0.7.5 - 2021-06-28

• dhcpv4: emit DNS servers in repr (#505)

0.7.4 - 2021-06-11

• tcp: fix "subtract sequence numbers with underflow" on remote window shrink. (#490)
• tcp: fix substract with overflow when receiving a SYNACK with unincremented ACK number. (#491)
• tcp: use nonzero initial sequence number to workaround misbehaving servers. (#492)

0.7.3 - 2021-05-29

• Fix "unused attribute" error in recent nightlies.

0.7.2 - 2021-05-29

• iface: check for ipv4 subnet broadcast addrs everywhere (#462)
• dhcp: always send parameter_request_list. (#456)
• dhcp: Clear expiration time on reset. (#456)
• phy: fix FaultInjector returning a too big buffer when simulating a drop on tx (#463)
• tcp rtte: fix "attempt to multiply with overflow". (#476)
• tcp: LastAck should only change to Closed on ack of fin. (#477)
• wire/dhcpv4: account for lease time, router and subnet options in DhcpRepr::buffer_len (#478)

0.7.1 - 2021-03-27

• ndisc: Fix NeighborSolicit incorrectly asking for src addr instead of dst addr (419)
• dhcpv4: respect lease time from the server instead of renewing every 60 seconds. (437)
• Fix build errors due to invalid combinations of features (416, 447)
• wire/ipv4: make some functions const (420)
• phy: fix BPF on OpenBSD (421, 427)
• phy: enable RawSocket, TapInterface on Android (435)
• phy: fix phy_wait for waits longer than 1 second (449)

0.7.0 - 2021-01-20

• Minimum Supported Rust Version (MSRV) bumped from 1.36 to 1.40

New features

• tcp: Allow distinguishing between graceful (FIN) and ungraceful (RST) close. On graceful close, recv() now returns Error::Finished. On ungraceful close, Error::Illegal is returned, as before. (351)
• sockets: Add support for attaching async/await Wakers to sockets. Wakers are woken on socket state changes. (394)
• tcp: Set retransmission timeout based on an RTT estimation, instead of the previously fixed 100ms. This improves performance on high-latency links, such as mobile networks. (406)
• tcp: add Delayed ACK support. On by default, with a 10ms delay. (404)
• ip: Process broadcast packets directed to the subnet's broadcast address, such as 192.168.1.255. Previously broadcast packets were only processed when directed to the 255.255.255.255 address. (377)

Fixes

• udp,raw,icmp: Fix packet buffer panic caused by large payload (332)
• dhcpv4: use offered ip in requested ip option (310)
• dhcpv4: Re-export dhcp::clientv4::Config
• dhcpv4: Enable proto-dhcpv4 feature by default. (327)
• ethernet,arp: Allow for ARP retry during egress (368)
• ethernet,arp: Only limit the neighbor cache rate after sending a request packet (369)
• tcp: use provided ip for TcpSocket::connect instead of 0.0.0.0 (329)
• tcp: Accept data packets in FIN_WAIT_2 state. (350)
• tcp: Always send updated ack number in ack_reply(). (353)
• tcp: allow sending ACKs in FinWait2 state. (388)
• tcp: fix racey simultaneous close not sending FIN. (398)
• tcp: Do not send window updates in states that shouldn't do so (360)
• tcp: Return RST to unexpected ACK in SYN-SENT state. (367)
• tcp: Take MTU into account during TcpSocket dispatch. (384)
• tcp: don't send data outside the remote window (387)
• phy: Take Ethernet header into account for MTU of RawSocket and TapInterface. (393)
• phy: add null terminator to c-string passed to libc API (372)

Quality of Life™ improvements

• Update to Rust 2018 edition (396)
• Migrate CI to Github Actions (390)
• Fix clippy lints, enforce clippy in CI (395, 402, 403, 405, 407)
• Use #[non_exhaustive] for enums and structs (409, 411)
• Simplify lifetime parameters of sockets, SocketSet, EthernetInterface (410, 413)