[Bug 211730] pf uses 32bit value for bandwith with altq

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Wed Aug 22 19:39:29 UTC 2018


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211730

--- Comment #13 from commit-hook at freebsd.org ---
A commit references this bug:

Author: pkelsey
Date: Wed Aug 22 19:38:52 UTC 2018
New revision: 338209
URL: https://svnweb.freebsd.org/changeset/base/338209

Log:
  Extended pf(4) ioctl interface and pfctl(8) to allow bandwidths of
  2^32 bps or greater to be used.  Prior to this, bandwidth parameters
  would simply wrap at the 2^32 boundary.  The computations in the HFSC
  scheduler and token bucket regulator have been modified to operate
  correctly up to at least 100 Gbps.  No other algorithms have been
  examined or modified for correct operation above 2^32 bps (some may
  have existing computation resolution or overflow issues at rates below
  that threshold).  pfctl(8) will now limit non-HFSC bandwidth
  parameters to 2^32 - 1 before passing them to the kernel.

  The extensions to the pf(4) ioctl interface have been made in a
  backwards-compatible way by versioning affected data structures,
  supporting all versions in the kernel, and implementing macros that
  will cause existing code that consumes that interface to use version 0
  without source modifications.  If version 0 consumers of the interface
  are used against a new kernel that has had bandwidth parameters of
  2^32 or greater configured by updated tools, such bandwidth parameters
  will be reported as 2^32 - 1 bps by those old consumers.

  All in-tree consumers of the pf(4) interface have been updated.  To
  update out-of-tree consumers to the latest version of the interface,
  define PFIOC_USE_LATEST ahead of any includes and use the code of
  pfctl(8) as a guide for the ioctls of interest.

  PR:   211730
  Reviewed by:  jmallett, kp, loos
  MFC after:    2 weeks
  Relnotes:     yes
  Sponsored by: RG Nets
  Differential Revision:        https://reviews.freebsd.org/D16782

Changes:
  head/sbin/ipfw/altq.c
  head/sbin/pfctl/parse.y
  head/sbin/pfctl/pfctl.c
  head/sbin/pfctl/pfctl_altq.c
  head/sbin/pfctl/pfctl_parser.h
  head/sbin/pfctl/pfctl_qstats.c
  head/sys/net/altq/altq.h
  head/sys/net/altq/altq_cbq.c
  head/sys/net/altq/altq_cbq.h
  head/sys/net/altq/altq_codel.c
  head/sys/net/altq/altq_codel.h
  head/sys/net/altq/altq_fairq.c
  head/sys/net/altq/altq_fairq.h
  head/sys/net/altq/altq_hfsc.c
  head/sys/net/altq/altq_hfsc.h
  head/sys/net/altq/altq_priq.c
  head/sys/net/altq/altq_priq.h
  head/sys/net/altq/altq_subr.c
  head/sys/net/altq/altq_var.h
  head/sys/net/pfvar.h
  head/sys/netpfil/pf/pf_altq.h
  head/sys/netpfil/pf/pf_ioctl.c
  head/usr.sbin/bsnmpd/modules/snmp_pf/pf_snmp.c

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