Opened 3 years ago

Closed 3 years ago

Last modified 3 years ago

#10583 closed enhancement (fixed)

dhcpcd 7.0.2

Reported by: Tim Tassonis Owned by: Tim Tassonis
Priority: normal Milestone: 8.3
Component: BOOK Version: SVN
Severity: normal Keywords:
Cc:

Description

A long overdue release, and apologies for the wait Fixed stuff:

  • Added support for setproctitle(3)
  • Kernel RA is no longer disabled when IPv6 is disabled in dhcpcd
  • DHCPv6 PD is no longer stopped if no Routers are found
  • If the DHCP leased address is deleted, enter the reboot state
  • DHCPv6 unicast is no longer performed when not in master mode
  • dhcpcd will now detect netlink/route socket overflows ad re-sync

The last point is the one that took sometime, mainly because I had to patch the NetBSD kernel on my router where this happens a lot when booting. Technically this was achieved just as in Linux - recv(2) now returns ENOBUFS when the internal receive buffer as overflowed. OpenBSD has a different approach where they flush the internal buffer and send a custom route(4) RTM_DESYNC message. This is supported as well.

Once overflowed, dhcpcd will close the socket to throw away now garbage messages and open a new one. Then it will re-learn interfaces (+ their carrier state and flags) and addresses (+ their flags and lifetimes). dhcpcd will then run the hooks for any departed/arrvied/carrier/nocarrier events resulting from this, in other words it should function as if nothing happened.

Change History (3)

comment:1 by Tim Tassonis, 3 years ago

Owner: changed from blfs-book to Tim Tassonis
Status: newassigned

comment:2 by Tim Tassonis, 3 years ago

Resolution: fixed
Status: assignedclosed

comment:3 by Tim Tassonis, 3 years ago

Fixed in revision 20012

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