Not only did these two drivers depend on IFF_NEEDSGIANT, they were
broken 7 months ago during the MPSAFE TTY import. if_ppp(4) has been
replaced by ppp(8). There is no replacement for if_sl(4).
If we see regressions in for example the ports tree, we should just use
__FreeBSD_version 800045 to check whether if_ppp(4) and if_sl(4) are
present. Version 800045 is used to denote the import of MPSAFE TTY.
Discussed with: rwatson, but also rwatson's IFF_NEEDSGIANT emails on the
lists.
driver in Linux 2.6. uscanner was just a simple wrapper around a fifo and
contained no logic, the default interface is now libusb (supported by sane).
Reviewed by: HPS
avoidance:
- Enable setting the RXCSUM and TXCSUM flags for loopback interfaces;
set both by default.
- When RXCSUM is set, flag packets sent over the loopback interface as
having checked and valid IP, UDP, TCP checksums so that higher
protocol layers won't check them.
- Always clear CSUM_{IP,UDP_TCP} checksum required flags on transmit,
as they will have gotten there as a result of TXCSUM being set.
This is done only for packets explicitly sent over the loopback, not
simulated loopback via if_simloop() due to !SIMPLEX interfaces, etc.
Note that enabling TXCSUM but not RXCSUM will lead to unhappiness, as
checksums won't be generated but will be validated.
Kris reports that this leads to significant performance improvements
in loopback benchmarking with TCP and UDP for throughput:
RXCSUM RXCSUM+TXCSUM
TCP 15% 37%
UDP 10% 74%
Update man page.
Reviewed by: sam
Tested by: kris
MFC after: 1 week
IPv4 stack.
Diffs are minimized against p4.
PCS has been used for some protocol verification, more widespread
testing of recorded sources in Group-and-Source queries is needed.
sizeof(struct igmpstat) has changed.
__FreeBSD_version is bumped to 800070.
vfsopt and the vfs_buildopts function public, and add some new fields
to struct vfsopt (pos and seen), and new functions vfs_getopt_pos and
vfs_opterror.
Further extend the interface to allow reading options from the kernel
in addition to sending them to the kernel, with vfs_setopt and related
functions.
While this allows the "name=value" option interface to be used for more
than just FS mounts (planned use is for jails), it retains the current
"vfsopt" name and <sys/mount.h> requirement.
Approved by: bz (mentor)
the example script of the manpage feeds awk(1) with values larger
than UINT32_MAX. Then awk prints a negative value, and this
messes up $BPFPROG. Trying to load the resulting bpf byte codes
with ngctl then fails.
For example, the output for PATTERN="udp and dst net 255.255.0.0/16"
should be (all in one line):
bpf_prog_len=10
bpf_prog=[
{ code=40 jt=0 jf=0 k=12 }
{ code=21 jt=7 jf=0 k=34525 }
{ code=21 jt=0 jf=6 k=2048 }
{ code=48 jt=0 jf=0 k=23 }
{ code=21 jt=0 jf=4 k=17 }
{ code=32 jt=0 jf=0 k=30 }
{ code=84 jt=0 jf=0 k=4294901760 }
{ code=21 jt=0 jf=1 k=4294901760 }
{ code=6 jt=0 jf=0 k=8192 }
{ code=6 jt=0 jf=0 k=0 }
]
The two k=4294901760 values are displayed as k=-2147483648 by awk.
Replace the awk script of the manpage example with a slower but
safer version, that doesn't really attempt to convert the byte
code printed by tcpdump from string to number and back.
PR: docs/123255
Submitted by: Eugenio Maffione, eugenio.maffione at telecomitalia.it
MFC after: 3 days
but the man page describes conceptual information about the process of
adding a user, thus it should belong to section 7.
- Remove HISTORY and BUGS sections because of the aforementioned reason.
PR: docs/130151
Submitted by: Marian Cerny <jojo@matfyz.cz>
MFC after: 3 days
the -g and -q options. They do a slightly different thing and
both are necessary when the time difference is large.
Noticed by: danger, in the forums
Approved by: roberto
MFC after: 1 week
Remove invalid return values.
Remove reference to non-existent manual pages.
Remove reference to rfork (it does not discuss RFSTOPPED).
Add sys/unistd.h to the list of includes (required for RFSTOPPED).
PR: 126227
Submitted by: Mateusz Guzik <mjguzik@gmail.com> (based on, original version)
Reviewed by: jhb, Christoph Mallon <christoph.mallon@gmx.de>
Note: this is only really necessary because of the ifconfig
logic to add/remove the jail IPs upon start/stop.
Consensus among simon and I is that the logic should
really be factored out from the startup script and put
into a proper management solution.
- We now support starting of no-IP jails.
- Remove the global jail_<jname>_netmask option as it is only
helpful to set netmasks/prefixes for the right address
family and per address.
- Implement jail_<jname>_ip options to support both
address familes with regard to ifconfig logic.
- Implement _multi<n> support suffix to the jail_<jname>_ip
option to configure additional addresses to avoid overlong,
unreadbale jail_<jname>_ip lines with lots of addresses.
Submitted by: initial work from Ruben van Staveren
Discussed on: freebsd-jail in Nov 2008.
Reviewed by: simon, ru (partial, older version)
MFC after: 1 week
it's also supported with BCM5702 (matched by BGE_ASICREV_BCM5703) but
bge(4) currently doesn't with neither BCM5714 nor BCM5780.
Prodded by: scf
MFC after: 3 days
