Commit Graph

9 Commits

Author SHA1 Message Date
Patrick Kelsey
1d34c9dac8 Reduce pf.conf parsing cost for configs that define N queues from O(N^2) to O(N)
The number of syscalls made during parsing of any config that
defines tables is also reduced, and incorrect warnings that HFSC
parent queue bandwidths were smaller than the sum of their child
bandwidths have been fixed.

Reviewed by:	kp
MFC after:	1 week
Sponsored by:	RG Nets
Differential Revision:	https://reviews.freebsd.org/D18759
2019-01-22 00:50:24 +00:00
Patrick Kelsey
249cc75fd1 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
2018-08-22 19:38:48 +00:00
Kristof Provost
7a831fecc8 pfctl: Improve set skip handling for groups
Rely on the kernel to appropriately mark group members as skipped.
Once a group is skipped we can clear the update flag on all the members.

PR:		229241
Submitted by:	Andreas Longwitz <longwitz AT incore.de>
MFC after:	1 week
2018-08-22 08:14:29 +00:00
Kristof Provost
fa1d4439f9 pf: Return non-zero from 'status' if pf is not enabled
In the pf rc.d script the output of `/etc/rc.d/pf status` or `/etc/rc.d/pf
onestatus` always provided an exit status of zero. This made it fiddly to
programmatically determine if pf was running or not.

Return a non-zero status if the pf module is not loaded, extend pfctl to have
an option to return an error status if pf is not enabled.

PR:		228632
Submitted by:	James Park-Watt <jimmypw AT gmail.com>
MFC after:	1 week
2018-06-06 19:36:37 +00:00
Pedro F. Giffuni
1de7b4b805 various: general adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

No functional change intended.
2017-11-27 15:37:16 +00:00
Luiz Otavio O Souza
0a70aaf8f5 Add ALTQ(9) support for the CoDel algorithm.
CoDel is a parameterless queue discipline that handles variable bandwidth
and RTT.

It can be used as the single queue discipline on an interface or as a sub
discipline of existing queue disciplines such as PRIQ, CBQ, HFSC, FAIRQ.

Differential Revision:	https://reviews.freebsd.org/D3272
Reviewd by:	rpaulo, gnn (previous version)
Obtained from:	pfSense
Sponsored by:	Rubicon Communications (Netgate)
2015-08-21 22:02:22 +00:00
Ermal Luçi
a5b789f65a ALTQ FAIRQ discipline import from DragonFLY
Differential Revision:  https://reviews.freebsd.org/D2847
Reviewed by:    glebius, wblock(manpage)
Approved by:    gnn(mentor)
Obtained from:  pfSense
Sponsored by:   Netgate
2015-06-24 19:16:41 +00:00
Bjoern A. Zeeb
f870cb7f3b Use feature_present(3) to determine whether to open an INET or an
INET6 socket when needed to allow pfctl to work on noinet and noinet6
kernels (and try to provide a fallback using AF_LINK as best effort).
Adjust the Makefile to also respect relevant src.conf(5) options
for compile time decisions on INET and INET6 support.

Reviewed by:	glebius (no objections)
MFC after:	1 week
2013-12-26 15:51:14 +00:00
Gleb Smirnoff
3b3a8eb937 o Create directory sys/netpfil, where all packet filters should
reside, and move there ipfw(4) and pf(4).

o Move most modified parts of pf out of contrib.

Actual movements:

sys/contrib/pf/net/*.c		-> sys/netpfil/pf/
sys/contrib/pf/net/*.h		-> sys/net/
contrib/pf/pfctl/*.c		-> sbin/pfctl
contrib/pf/pfctl/*.h		-> sbin/pfctl
contrib/pf/pfctl/pfctl.8	-> sbin/pfctl
contrib/pf/pfctl/*.4		-> share/man/man4
contrib/pf/pfctl/*.5		-> share/man/man5

sys/netinet/ipfw		-> sys/netpfil/ipfw

The arguable movement is pf/net/*.h -> sys/net. There are
future plans to refactor pf includes, so I decided not to
break things twice.

Not modified bits of pf left in contrib: authpf, ftp-proxy,
tftp-proxy, pflogd.

The ipfw(4) movement is planned to be merged to stable/9,
to make head and stable match.

Discussed with:		bz, luigi
2012-09-14 11:51:49 +00:00