netchild [Sun, 31 Dec 2006 12:39:10 +0000 (12:39 +0000)]
MFp4 (111746+):
Redo the checking for 2.6 emulation. We now cache the value of
use26 and replace calls to linux_get_osrelease() + parsing with
a call to linux_use26(). Typical path is lockless now.
Pointed out by: kib
This allows to ship RELENG_7_0 with a default osrelease of 2.4.2 and the
possibility to enable 2.6.x emulation without the possible performance
impact of the previous version of the check.
yar [Sun, 31 Dec 2006 11:07:29 +0000 (11:07 +0000)]
Allow for /usr/bin/env when parsing the shebang line from an
interpreted $command. Some "portable" sofware packages use such a
line to skip the task of figuring out the absolute pathname of the
interpreter at install time, e.g.:
#!/usr/bin/env python
It is insecure, but a popular book on Python seems to have advised
it to a wide audience. Hence a number of such scripts in the ports,
mostly written in Python.
yar [Sat, 30 Dec 2006 22:53:20 +0000 (22:53 +0000)]
Eliminate global symbols starting with an underscore from rc.d
scripts, except for mdconfig* and jail. Such symbols are reserved
for the rc.subr internals. Most scripts can be fixed by just
declaring _foo symbols as local: few scripts actually need them to
be global.
yar [Sat, 30 Dec 2006 21:10:25 +0000 (21:10 +0000)]
- Don't defer the removal of an 802.1q header for no real reason.
- Micro-optimize the addition of an 802.1q header to match the removal code.
- Consistently check for interfaces being up and running.
- Consistently use NULL instead of 0 with pointers.
bmah [Sat, 30 Dec 2006 18:22:09 +0000 (18:22 +0000)]
Remove alpha-specific stuff from the hardware notes (these are mostly
in attributes for generating MD hardware, as well as a few alpha-only
paragraphs here and there).
While here, bump copyright date in dev.archlist.txt.
piso [Fri, 29 Dec 2006 21:59:17 +0000 (21:59 +0000)]
Summer of Code 2005: improve libalias - part 2 of 2
With the second (and last) part of my previous Summer of Code work, we get:
-ipfw's in kernel nat
-redirect_* and LSNAT support
General information about nat syntax and some examples are available
in the ipfw (8) man page. The redirect and LSNAT syntax are identical
to natd, so please refer to natd (8) man page.
To enable in kernel nat in rc.conf, two options were added:
o firewall_nat_enable: equivalent to natd_enable
o firewall_nat_interface: equivalent to natd_interface
Remember to set net.inet.ip.fw.one_pass to 0, if you want the packet
to continue being checked by the firewall ruleset after being
(de)aliased.
NOTA BENE: due to some problems with libalias architecture, in kernel
nat won't work with TSO enabled nic, thus you have to disable TSO via
ifconfig (ifconfig foo0 -tso).
rrs [Fri, 29 Dec 2006 20:21:42 +0000 (20:21 +0000)]
a) macro-ization of all mbuf and random number
access plus timers. This makes the code
more portable and able to change out the
mbuf or timer system used more easily ;-)
b) removal of all use of pkt-hdr's until only
the places we need them (before ip_output routines).
c) remove a bunch of code not needed due to <b> aka
worrying about pkthdr's :-)
d) There was one last reorder problem it looks where
if a restart occur's and we release and relock (at
the point where we setup our alias vtag) we would
end up possibly getting the wrong TSN in place. The
code that fixed the TSN's just needed to be shifted
around BEFORE the release of the lock.. also code that
set the state (since this also could contribute).
Approved by: gnn
bz [Fri, 29 Dec 2006 19:23:38 +0000 (19:23 +0000)]
bridge_snmp.h
* Change the API of bridge_get_basemac to take a maximum buffer length.
bridge_if.c
* Adopt to new API.
* In bridge_attach_newif() remove an additional pointer to the buffer
by shuffling the code a bit. Also makes the code more readable.
bridge_sys.c
* bridge_get_basemac():
- Adopt to the new API.
- Change check for error code of getifaddrs().
- First check for sa_family != AF_LINK.
- Copy sockaddr_dl * to get around alignment constraints on some
platforms.
- Use strcmp instead of strncmp so that "foo11" != "foo1".
* other functions:
- Allocate n times of the struct we need instead of arbitrary len,
cast to the type we want it to be and pass around struct *s instead
of char *s. This gets us around alignment restrictions on some
platforms and in addition it is more clear what data is passed around.
- Name variables for same types consistently.
jhb [Fri, 29 Dec 2006 13:59:50 +0000 (13:59 +0000)]
Various bpf(4) related fixes to catch places up to the new bpf(4)
semantics.
- Stop testing bpf pointers for NULL. In some cases use
bpf_peers_present() and then call the function directly inside the
conditional block instead of the macro.
- For places where the entire conditional block is the macro, remove the
test and make the macro unconditional.
- Use BPF_MTAP() in if_pfsync on FreeBSD instead of an expanded version of
the old semantics.
mlaier [Fri, 29 Dec 2006 13:59:03 +0000 (13:59 +0000)]
Work around a long standing LOR with user/group rules by doing the socket
lookup early. This has some performance implications and should not be
enabled by default, but might help greatly in certain setups. After some
more testing this could be turned into a sysctl.
bde [Fri, 29 Dec 2006 13:36:26 +0000 (13:36 +0000)]
Try harder to garbage-collect the "LOCORE" (really asm) version of
MPLOCKED. The cleaning in rev.1.25 was supposed to have been undone
by rev.1.26, but 1.26 could never have actually affected asm files
since atomic.h is full of C declarations so including it in asm files
would just give syntax errors. The asm MPLOCKED is even less needed
than when misplaced definitions of it were first removed, and is now
unused in any asm file in the src tree except in anachronismns in
sys/i386/i386/support.s.
rwatson [Fri, 29 Dec 2006 10:37:32 +0000 (10:37 +0000)]
Add a witness sleep warning to canon_path(), which invokes vput() and hence
may perform an unbounded sleep. Remove an XXX comment suggesting that one
be added.
yongari [Fri, 29 Dec 2006 04:55:38 +0000 (04:55 +0000)]
Piggyback watchdog timer handling with msk_tick which is called every
hz. This will result in slightly faster Tx processing as it does not
need lock operations for callouts in msk_start/msk_txeof.
yongari [Fri, 29 Dec 2006 03:56:29 +0000 (03:56 +0000)]
Fix interrupt handling on a dual port card. Previously it ignored
the second port interrupt if the first port was in down state.
Since I don't have a dual port card it's just guess work.
rwatson [Thu, 28 Dec 2006 21:48:38 +0000 (21:48 +0000)]
Centralize definition of MAC_VERSION in mac_policy.h, as it defines the
kernel<->policy ABI version. Add a comment to the definition describing
it and listing known versions. Modify MAC_POLICY_SET() to reference the
current kernel version by name rather than by number.
Staticize mac_late, which is used only in mac_framework.c.
rwatson [Thu, 28 Dec 2006 21:15:37 +0000 (21:15 +0000)]
Move mac_init_label() and mac_destroy_label() from mac_framework.c to
mac_label.c, and use these instead of replicated code in the label zone
constructor and destructor.
rwatson [Thu, 28 Dec 2006 17:25:57 +0000 (17:25 +0000)]
Update MAC Framework general comments, referencing various interfaces it
consumes and implements, as well as the location of the framework and
policy modules.
Refactor MAC Framework versioning a bit so that the current ABI version can
be exported via a read-only sysctl.
Further update comments relating to locking/synchronization.
Update copyright to take into account these and other recent changes.
glebius [Thu, 28 Dec 2006 13:21:54 +0000 (13:21 +0000)]
Before this commit, if the compression is enabled the, ng_ppp(4)
node would send every outgoing frame to the "compress" hook.
Packets received on the "compress" hook were expected to be
compressed and PROT_COMPD tag was put on them unconditionally.
After this commit an alternative compression mode can be set.
In this mode the node doesn't put the PROT_COMPD, the compressor
should put it itself. This is important for such kind of
compressors, that can submit uncompressed frames.
Before this commit, if the decompression is enabled, the ng_ppp(4)
node would send and incoming frame to the "decompress" hook
only if it has the PROT_COMPD proto tag on it.
After this commit an alternative decompression mode can be set.
In this mode the node sends all the incoming packets to the
decompression hook. This is important for such kind of compressors
that need uncompressed packets too, to keep their library in sync.
These new features will be used in new version of mpd4, and in new
compressor nodes.
bde [Thu, 28 Dec 2006 08:15:14 +0000 (08:15 +0000)]
Removed gratuitous cosmetic differences with the i386 version. This
mainly involves removing all __CC_SUPPORTS___INLINE__ ifdefs. These
ifdefs are even less needed for amd64 than for i386, but the i386
atomic.h never had them. The ifdefs here were just an optimization
of obsolescent compatibility cruft (__inline) for a null set of
compilers. I think null sets of compilers should only be supported
in cases where this is more than an optimization, doesn't require
extensive ifdefs, and only involves not-so-obsolescent compatibility
cruft (plain inline here).
sam [Thu, 28 Dec 2006 01:31:26 +0000 (01:31 +0000)]
o unbreak rate set defaulting
o mark 11g mode support on finding 11g or pure 11g (OFDM-only)
channels; was requiring pure 11g which caused some contortions
in drivers that manually setup their channel lists
bde [Wed, 27 Dec 2006 20:26:00 +0000 (20:26 +0000)]
Avoid an instruction in atomic_cmpset_{int_long)() in most cases.
These functions are used a lot for mutexes, so this reduces the text
size of an average kernel by about 0.75%. This wasn't intended to
be a significant optimization, but it somehow increased the maximum
number of packets per second that can be transmitted by my bge hardware
from 320000 to 460000 (this benchmark is CPU-bound and remarkably
sensitive to changes in the text section).
Details: we would prefer to leave the result of the cmpxchg in %al,
but cannot tell gcc that it is there, so we have to convert it to an
integer register. We converted to %al, then to %[re]ax, but the
latter step is usually wasted since gcc usually only wants the condition
code and can recover it from %al just as easily as from %[re]ax. Let
gcc promote %al in the few cases where this is needed.
Nearby style fixes;
- let gcc manage the load of `res', and don't abuse `res' for a copy of `exp'
- don't echo `res's name in comments
- consistently spell the condition code as 'e' after comparison for equality
- don't hard-code %al anywhere except in constraints
- for the version that doesn't use cmpxchg, there is no requirement to use
%al anywhere, so don't hard-code it in the constraints either.
Style non-fix:
- for the versions that use cmpxchg, keep using "a" (was %[re]ax, now %al)
for the main output operand, although this is not required. The input
and output operands that use the "a" constraint are now decoupled, and
this makes things clearer except for the reason that the output register
is hard-coded. It is now just a hack to tell gcc that the input "a" has
been clobbered without increasing the number of operands.
sam [Wed, 27 Dec 2006 19:07:09 +0000 (19:07 +0000)]
Add half/quarter rate 11a channel support:
o change handling of regdomain-related mib knobs so they can be set
post-attach: regdomain, countrycode, outdoor, and xchanmode; the
hal will not permit changing the regdomain but we expose it for now
o on regdomain/countrycode change recalculate the channel list and
push it to the net80211 layer (NB: looks to need more tweaking)
o setup rate tables for half/quarter rate channels
o honor half/quarter rate channel configs when changing channels
o honor half/quarter rate channel configs when setting the slot time
o use hack/nonstandard channel numbering scheme for the public safety
band to avoid overlapping 2.4G channels on dual-band cards
o remove setup of ic_sup_rates; the net80211 layer can do this for us
and it simplifies handling of half/quarter rate channels
Tested only in Public Safety Band with cards that have RF5112.
sam [Wed, 27 Dec 2006 18:48:50 +0000 (18:48 +0000)]
Add half/quarter rate 11a channel support:
o add hack/nonstandard channel mapping for public safety band channels to
mirror kernel (temporary until we have proper 802.11 state)
o change ieee80211_mhz2ieee to take channel flags (unused right now)
While here do some minor fixups like using IEEE80211_IS_CHAN_ANYG.
sam [Wed, 27 Dec 2006 18:46:18 +0000 (18:46 +0000)]
First cut at half/quarter-rate 11a channel support (e.g. for use
in the Public Safety Band):
o add channel flags to identify half/quarter-rate operation
o add rate sets (need to check spec on 4Mb/s in 1/4 rate)
o add if_media definitions for new rates
o split net80211 channel setup out into ieee80211_chan_init
o fixup ieee80211_mhz2ieee and ieee80211_ieee2mhz to understand half/quarter
rate channels: note we temporarily use a nonstandard/hack numbering that
avoids overlap with 2.4G channels because we don't (yet) have enough
state to identify and/or map overlapping channel sets
o fixup ieee80211_ifmedia_init so it can be called post attach and will
recalculate the channel list and associated state; this enables changing
channel-related state like the regulatory domain after attach (will be
needed for 802.11d support too)
o add ieee80211_get_suprates to return a reference to the supported rate
set for a given channel
o add 3, 4.5, and 27 MB/s tx rates to rate <-> media conversion routines
o const-poison channel arg to ieee80211_chan2mode
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