This socket option allows processes query a TCP socket for some low
level transmission details, such as the current send, bandwidth, and
congestion windows. Linux provides a 'struct tcpinfo' structure
containing various variables, rather than separate socket options;
this makes the API somewhat fragile as it makes it dificult to add
new entries of interest as requirements and implementation evolve.
As such, I've included a large pad at the end of the structure.
Right now, relatively few of the Linux API fields are filled in, and
some contain no logical equivilent on FreeBSD. I've include __'d
entries in the structure to make it easier to figure ou what is and
isn't omitted. This API/ABI should be considered unstable for the
time being.
Null_open() was only here to handle MNT_NODEV, but since that does
not affect any filesystems anymore, it could only have any effect
if you nullfs mounted a devfs but didn't want devices to show up.
If you need that, there are easier ways.
window was 0 bytes in size. This may have been the cause of unsolved
"connection not closing" reports over the years.
Thanks to Michiel Boland for providing the fix and providing a concise
test program for the problem.
Submitted by: Michiel Boland
MFC after: 2 weeks
uses the brk_string function to parse the line. That function uses static
storage for both the expanded string and the returned argv[] vector.
The JobParseShell function simply stored away pointers into this static
storage. On the next use of something like ${FOO:O} this storage would
get overwritten with fatal results.
This also allows us to make the shells[] array const bringing us one step
further in making make WARNS=4 ready.
Historically, our contigmalloc1() and contigmalloc2() assumes
that a page in PQ_CACHE can be unconditionally reused by busying
and freeing it. Unfortunatelly, when object happens to be not
NULL, the code will set m->object to NULL and disregard the fact
that the page is actually in the VM page bucket, resulting in
page bucket hash table corruption and finally, a filesystem
corruption, or a 'page not in hash' panic.
This commit has borrowed the idea taken from DragonFlyBSD's fix
to the VM fix by Matthew Dillon[1]. This version of patch will
do the following checks:
- When scanning pages in PQ_CACHE, check hold_count and
skip over pages that are held temporarily.
- For pages in PQ_CACHE and selected as candidate of being
freed, check if it is busy at that time.
Note: It seems that this is might be unrelated to kern/72539.
Obtained from: DragonFlyBSD, sys/vm/vm_contig.c,v 1.11 and 1.12 [1]
Reminded by: Matt Dillon
Reworked by: alc
MFC After: 1 week
packet counts by pf(4).
This adds a ``daily_status_security_pfdenied_enable'' variable to
periodic.conf, which defaults to ``YES'' as the matching IPF(W) versions.
The output will look like this (line wrapped):
pf denied packets:
> block drop log on rl0 proto tcp all [ Evaluations: 504986 Packets: 0
Bytes: 0 States: 0 ]
> block drop log on rl0 all [ Evaluations: 18559 Packets: 427 Bytes: 140578
States: 0 ]
Submitted by: clive (thanks a lot!)
MFC after: 2 weeks
units (as specified in _BIF). (noted by Bruno Ducrot)
o In looking in the standard, if the cap numbers are 0xffffffff, then acpi
is reporting unknown for that field. Report unknown numbers properly.
o Update the state to reflect charging, discharging and critical.
and assume that the BIOS has set it up for us. This allows folks with a
serial-aware BIOS to set the BIOS to speeds above 9600 and allow boot0 to
just use the existing settings.
- Purge some gratuitous cpp comments as per style(9).
Submitted by: Danny Braniss danny at cs dot huji dot ac dot il (1)
MFC after: 1 month
my patches for this information. Commit my more complete version.
This version isn't complete yet, since some details aren't handled
right just yet.
Poaching by: phk
assembler to cpp(1) comment conversions. This allows btx to compile again
when BTX_SERIAL is defined.
Reported by: Danny Braniss danny at cs dot huji dot ac dot il
MFC after: 1 month
'binat from ... to ... -> (if)' are used, where the interface
is dynamic.
Discovered by: kos(at)bastard(dot)net
Analyzed by: Pyun YongHyeon
Approved by: mlaier (mentor)
MFC after: 1 week
contents of the tcpcb are read and modified in volume.
In tcp_input(), replace th comparison with 0 with a comparison with
NULL.
At the 'findpcb', 'dropafterack', and 'dropwithreset' labels in
tcp_input(), assert 'headlocked'. Try to improve consistency between
various assertions regarding headlocked to be more informative.
MFC after: 2 weeks
