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SMCRoute v2.6.0

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@github-actions github-actions released this 27 Jun 06:32
2.6.0
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troglobit Joachim Wiberg
GPG key ID: ECA826A37B6C7409
Verified
Learn about vigilant mode.
b5cde07
This commit was signed with the committer’s verified signature.
troglobit Joachim Wiberg
GPG key ID: ECA826A37B6C7409
Verified
Learn about vigilant mode.

Note

The headline of this release is that interfaces that arrive after smcrouted has started, e.g., WireGuard, 6LoWPAN, late-binding bridges and other tunnels, now activate automatically on Linux.

Changes

  • Add JSON output support smcroutectl -j show [..], issue #198
  • Drop pre-v2.0 smcroute shell wrapper. Anyone still on smcroute -a / smcroute -j / etc. should migrate to smcroute.conf or call smcroutectl(8) directly, issue #199
  • Clearer diagnostic messages for unusable phyints (unknown name vs. not multicast capable vs. VIF table exhausted). Promoted the "not multicast capable" log line from LOG_INFO to LOG_WARNING so it shows at the default log level. See discussion #201
  • mroute and mgroup directives whose inbound or outbound interface does not yet exist are queued on a pending list instead of being dropped with parse error. See list with smcroutectl show pending

Fixes

  • Fix #55: on Linux, smcrouted now subscribes to kernel netlink link events (RTNLGRP_LINK + IPv4/IPv6 address groups) and activates any pending routes/groups automatically when their inbound or outbound interface arrives
  • Fix #71: VIFs and MIFs are now allocated lazily, only for interfaces referenced by smcroute.conf or by smcroutectl. The old up-front enumeration regularly exhausted the kernel's 32-slot table on hosts with many unrelated interfaces. The -N option is now a no-op
  • Fix #143: repair kernel MFC on IGMPMSG_WRONGVIF / MRT6MSG_WRONGMIF by remapping the (S,G) entry's inbound iif when a (*,G) rule covers the upcall's actual iif
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