vbs/vbe members in Mode was only used in the vesadb
and cannot be changed from vgadb.
use shs/ehs in drivers when refering to the horizontal
sync pulse. clarify the matter in a comment.
link detailed timing modes at the head of the edid
modelist. these are the modes we'r interested in,
not the ones from vesadb.
igfx and vesa can determine monitor timing information from ddc
and store the edid info for connected monitors in vga->edid[].
when monitor type cannot be found in vgadb, we consult the edid
information and make a mode based on the edid info.
this avoids having to maintain a vgadb entry for each monitor.
monitor can be set to "[width]x[height]@[freq]Hz" for a specific
edid setting. when not found, a mode is searched based on the
size.
so the following should work:
aux/vga -m 1366x768@60Hz -l 1366x768x32
aux/vga -m auto -l 1366x768x32
dbvesamode() modified the passed in size string in the process
of option parsing. this is a no-go because the string might be
constant in the read only section. provide cracksize() function
for the parsing and make a static copy.
do the vendor specific monitor detection in vbesnarf() instead
of vbecheck(). vbecheck()'s purpose is to check if vesa bios
service is avialable, not snarf graphics card state.
nvidiascale() was a no-op because it missed the vbecall() at
the end of the function. this means it was never tested so i
add the missing vbecall(), but disable nvidiascale for now
until someone tests this.
keep fancy stuff out of the Vbe structure. it is just there for
making bios calls, not keep state about the graphics card.
this adds support for eap-peap/mschapv2 and eap-ttls/pap.
code has only been tested with freeradius and a cheap
access point, not tested with actual eduroam network.
this is used for wpa2 enterprise peap/mschapv2. server role
is not implemented as that would require changing the
wire format on the auth server.
the naming is unfortunate as we already have proto=mschap2 which
really refers to ntlmv2.
program secret plane size and position registers described as "reserved"
in g45_vol_3_register_0_0.pdf that was found by inspecting vesa bios
port traces.
also, we have to set 18:19 (Cursor/Dispaly/Overlay Planes Off) in
PIPExCONF while programming the planes on this card. this is what
vesa bios does on modeset.
avoid sync the jar file when fids get clunked.
the only reason to sync the jar on clunk is when it has
been marked dirty (cookies added or deleted) and we
want to flush the changes to disk.
- rewrite when jar->dirty != 0 (caller modified the in memory jar)
- reread when the jar->qid != stat(jar->file)->qid (on disk file changed)
- ignore deleted cookies in cookiesearch()
initially, pio was used to access registers so i didnt need
a kernel driver for initial testing.
pio does not work under efi, so use mmio to access registers.
Prior to switching display, switch to text mode 3, which
is supported by anything, then set display, search for the
desired mode, load it if found. If not found, set the display
to the old one and switch to the old mode back.
the utf8 buffers b1 where allocated from fbufalloc() which gives
us BUFSIZE bytes, but Xfid->count can be bigger than that. so just
emalloc() the requested number of bytes.
when converting from Runes to utf-8, we have to account for the
terminating '\0' byte snprint() places, so fix the maxrune number
calculation instead of using BUFSIZE+1 as buffer size.
A buffer can be overflowed in the init function of kbmap.c by using a filename of more than 112 characters.
sample output:
% cd /sys/lib/kbmap
% touch aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
% kbmap
kbmap 1974: suicide: sys: trap: fault write addr=0xa6a96510 pc=0x000011df
offending code is most likely the call to sprint in the init function of /sys/src/cmd/kbmap.c,
which in this case writes /sys/lib/kbmap/$file to a 128-bit buffer.
I'm willing to submit a patch for this myself along with a few minor improvements/fixes to kbmap
if I can figure out the nuances of doing so.
--silasm
continue recursing when we get empty but non-negative answer
from a (claimed) authoritative nameserer that provides more
nameservers.
this fixes wordpress dns:
63766.3: sending to 192.0.80.93/ns1.wordpress.com bossypally.files.wordpress.com ip
63766: rcvd OK from 192.0.80.93 (authoritative)
Q: bossypally.files.wordpress.com ip
Auth: files.wordpress.com 5 min ns mdns1.wordpress.com
files.wordpress.com 5 min ns mdns2.wordpress.com
files.wordpress.com 5 min ns mdns3.wordpress.com
files.wordpress.com 5 min ns mdns4.wordpress.com
files.wordpress.com 5 min ns mdns5.wordpress.com
Hint: mdns1.wordpress.com 4 hr ip 192.0.75.7
mdns2.wordpress.com 4 hr ip 198.181.117.7
mdns3.wordpress.com 4 hr ip 198.181.116.7
mdns4.wordpress.com 4 hr ip 198.181.118.7
mdns5.wordpress.com 4 hr ip 192.0.74.7
63766.4: sending to 192.0.75.7/mdns1.wordpress.com bossypally.files.wordpress.com ip
63766: rcvd OK from 192.0.75.7 (authoritative)
Q: bossypally.files.wordpress.com ip
Ans: bossypally.files.wordpress.com 5 min ip 192.0.72.2
bossypally.files.wordpress.com 5 min ip 192.0.72.3
----------------------------
answer bossypally.files.wordpress.com 5 min ip 192.0.72.2
answer bossypally.files.wordpress.com 5 min ip 192.0.72.3
----------------------------
note the authoritative flag in the first response from ns1.wordpress.com that
would otherwise terminate the search.
sed just continued writing past genbuf when it should stop
with "Output line too long".
quit when we get unspecified options.
stupid casts from long to char* for no reason.
some 0 vs nil cleanup.
we can improve performance alot by using webfs which
does http keep alives for us, so connection setup
overhead is eleminated.
fix 9p flushes and double frees.
werrstr() takes a format string as its first argument.
a common error is to pass user controlled string buffers
into werrstr() that might contain format string escapes
causing werrstr() to take bogus arguments from the stack
and crash.
so instead of doing:
werrstr(buf);
we want todo:
werrstr("%s", buf);
or if we have a local ERRMAX sized buffer that we can override:
errstr(buf, sizeof buf);
bug: as jpm pointed out, when we run aux/wpa in rio window
and delete the window, aux/wpa was killed as it shared the
note group of the window.
fix: fork the notegroup.
to get the right data size of a file, the revlog needs to have been
opened and the metaheader parsed. as an optimization, we used to
open revlog only on the first read resulting revlogs with metaheaders
having the wrong size returned by fstat() until the first read().
tar relies on fstat() giving the correct file size, so just open
the revlog on open. reading directories can still yield the wrong
size but it is not that critical.
we used to set RD flag in requests unconditionally, which
is fine by the standard but some dns server administrators
seem to use it as a denial of service indicator (for ther
non recursive authoritative nameservers) and ignore the
request.
so only set the RD flag when talking to local dns servers.
the syscall stubs (for amd64) currently have a unconditional
spill of the first (register) argument to the stack.
sysr1 (and _nsec) are exceptional in that they do not
take any arguments, so the stub is writing unconditionally
to ther first argument slot on the stack.
i could avoid emiting the spill in the syscall stubs for
sysr1 but that would also break truss which assumes fixed
instruction sequence from stub start to the syscall number.
i'm not going to complicate the syscall stubs just for
sysr1 (_nsec is not used in 9front), but just add a dummy
argument to sysr1 definition that can receive the bogus
argument spill.
the numbers from /dev/sysstat overflow on 32bit, so have
to do subtraction modulo 2^32 as we calculate with 64bit
integers.
thanks mischief for reporting this.
this is a work in progress implementation of the ayiya (anything
in anything) protocol as used by sixxs.net. hiro tested it and it
worked for him, but progress has stalled as sixxs.net rejected my
request for an account and ignored my emails since.
unify the keyboard and mouse readers into one using the hid
report parser for both. remove the keyboard protocol handling,
as it is now handled by hid parser and all we get is a sequence
of keycodes in Hiddev.k[] which we diff for up/down and translate
to pc scancodes.
in backwards mode, the roles of the aan filters need to be
reversed. add "-n address" option to import to override the
announce address for the aan server part (default tcp!*!0).
mischief got babble error with his mobile phone as we used to
read at max 64 bytes for the data response phase. his device
has 512 byte packet size.
thans to mischief for the patience.
the allow command now takes an optional uid argument for the user
to be granted temporary god status on the fileserver for maintenance.
this was kenji okomotos idea, so thanks :)
remove wstatallow and writeallow flags. instead, we have global:
int allowed;
that contains the uid of the currently allowed user id or -1
if permission checking is globally disabled for the fileserver.
when zero, normal permission checking takes place.
added int isallowed(File*) function that returns non-zero when the
context is the console, or the allowed user. this is also used internally
by iaccess(), so all the extra code of in the callers of iaccess()
is gone now.
dont conflate allowed user with noauth flag and auto-allow on ream.
the installer already knows about noauth and allow flags so theres no
problem with bootstraping.
old iostats failed to work when builidng the kernel due to old bugs
that where already fixed in exportfs. instead of backporting the fixes,
reimplement iostats as a filter that sits between exportfs and the
process mount. from users perspective, theres no difference.
the result is much smaller and can handle everything that exportfs
can like /srv.
Xqdol() used to take quadratic time because of strcat(),
the code isnt really needed as list2str() aready does the
same thing in linear time without the strcat().
add estrdup() which uses emalloc() so allocation error are
catched.
move strdups() of name from callers into newvar().
avoid recursion of conclist(), and avoid copying of word
strings by providing Newword() function which doesnt copy
the word string.
addpage() should not be called with the display locked as it
calls showpage1() which sleeps when there are too many
processes active.
the bug was triggered by plumbing to trigger the addpage().
handle reads and writes with 9pqueue(2) so they can
be flushed and wont hang the filesystem. this also
lets us get rid of the timeouts.
ftdi is still full of braindamage that should be
rewritten, but i dont have a device to test.
instead of naming devices by ther dynamically assigned device address,
we hash device uniqueue fields from the device descriptor and produce
a 5 digit hex string that will identify the device across machines.
when there is a collision (less than 1% chance with 100 devices),
usbd will append the device address to the name to make it uniqueue
for this machine.
the hname is passed to drivers in the devid argument, which now has
the form addr:hname, where the colon and hname can be omited (for backwards
compatibility).
when the new behaviour isnt desired, nousbhname= environment variable
can be defined giving the old behaviour.
pipeline = 1 with a dovecot imap server causes FETCH and OK responses
get interleaved so some message bodies accidentally get merged together.
disabling it will make fetching mail over imap slower, but it works.
webfs forks the namespace to isolate itself from its mount
point which has the side effect that it captures the mount
of previous instances of webfs mounted on /mnt/web.
explicitely unmount the mountpoint in our namespace copy
to drop the reference.
when there are multiple readers of /dev/usbevent, we have to
serialize the processing to make sure that only one driver
is opening the devices control endpoint at a time.
to do this, we assume the device is busy after reading the
event file until the next read or clunk on the same fid.
to mark a device busy, we set the dev->aux pointer to the
fid processing a event. And the Event structure takes a
reference to the device producing the event.
the problem arised from cdc ethernet and nusb/serial sharing
the same device class, and we need to run the particular driver
to figure out if the device can be used. doing this concurrently
fails because devusb allows only one open per endpoint.
Without an explicit signal for a truncation, copy propagation will
sometimes propagate a 32-bit truncation and end up overwriting uses of
the original 64-bit value.
This was independently discovered and fixed in Go. See:
http://golang.org/issue/1315https://codereview.appspot.com/6002043/
Thanks Charles Forsyth for tips and advice.
newns() (called by auth_chuid()) already prepares the
environment variables and puts us in a sane working
directory (as specified by the namespace file).
trackers do like the new default Mozilla/5.0 (compatible)
user agent. so force useragent to hjdicks and give option
to override it in case trackers get even more clever in
the future.
in dhcpwatch, the sleep time "secs" could become
zero potentially freezing the lease time.
give up when in Sinit state in dhcpquery() as this
is a terminal state.
sites like google return the wrong characterset when
they do not recognize the user-agent. so setting default
user agent to something thats likely to pass these
idiotic browser tests.
> warning: a.c:9 useless or misleading comparison: UINT < 0
the error can be observed by compiling the following code
with warnings enabled:
#include <u.h>
#include <libc.h>
uint r;
void
main(int argc, char *argv[])
{
int r;
if(r < 0){
exits(0);
}
}
the offending code in the compiler is:
- if(l->op == ONAME && l->sym->type){
- lt = l->sym->type;
- if(lt->etype == TARRAY)
- lt = lt->link;
- }
compiler handles scope by overwritin and reverting
symbols while parsing. in the ccom phase, the nodes symbol
(n->sym) is not in the right scope and we wrongly think r
is uint instead of int.
it is not clear to me what this code tried to accomplish in
the first place nor could anyone answer me this question.
the risk is small as this change doesnt affect the compiled
program, only the warning, so removing the offending code.
the malloc pool allocator is limited in its allocation
size. as almost all data structures in cwfs are never
freed, use brk() in ialloc() instead of mallocalign().
this means memory returned by ialloc() cannot be freed!
to make sure we do not call free by accident, remove
the #define malloc(n) ialloc(n, 0) macro and use ialloc()
directly as in the original code to show the intend
of permanent allocations.
the shift instructions does not change the zero flag
when the shift count is 0, so we cannot remove the
compare instruction in this case.
this fixes oggdec under 386.
ftrvxmtrx repots devices that use the endpoint number for
input and output of different types like:
nusb/ether: parsedesc endpoint 5[7] 07 05 81 03 08 00 09 # ep1 in intr
nusb/ether: parsedesc endpoint 5[7] 07 05 82 02 00 02 00
nusb/ether: parsedesc endpoint 5[7] 07 05 01 02 00 02 00 # ep1 out bulk
the previous change tried to work arround this but had the
concequence that only the lastly defined endpoint was
usable.
this change addresses the issue by allowing up to 32 endpoints
per device (16 output + 16 input endpoints) in devusb. the
hci driver will ignore the 4th bit and will only use the
lower 4 bits as endpoint address when talking to the usb
device.
when we encounter a conflict, we map the input endpoint
to the upper id range 16..31 and the output endpoint
to id 0..15 so two distinct endpoints are created.
nusb code assumes endpoint numbers are unique. It's true in general
case, but it becomes false once the direction bit is ignored. The
commit adds a check so that two endpoints of different types are not
merged into one with Eboth direction. It does overwrite endpoint
though, so it shouldn't be considered as a full fix.
to run aux/wpa at boot, we need factotum to be running. tho
factotum was started only after the network was configured.
what we do now is start factotum early, not fetching keys
from secstore. once network is available and the auth server
is known, we fetch keys from secstore using auth/secstore in
bootrc.
to pass the authserver for p9 authentication to factotum, we
write it in /net/ndb and the special _authdial() in factotum
will picks it up.
as we are using auth/secstore binary in any case, we remove
the duplicated secstore code from factotum and make it just
exec auth/secstore to fetch the keys on startup (unless -n
or -S is specified).
quote handling was broken with 21-bit runes. nextrec()
returned quoted rune as long rune | (Runemax+1) to escape
it.
with 16-bit runes, storing that long into 16-bit Rune
would automatically remove the escaping, but with 21-bit
runes, Rune is uint32 so the escaping would remain. we
now use (Runemask+1) instead, and mask the escaping off
explicitely when storing back to Rune.
add 0xffff to tab1 as range 0xffff-0x10ffff has 4 byte utf-8 sequence.
use Runemax (0x10ffff) instead of Runemask (0x1fffff) to denote
the last valid rune for inverted [^] match as Runemask is out of the
valid rune space.
when the previous instruction sets the zero flag,
we can remove the CMPL/CMPQ instruction.
this removes compares for zero/non zero tests only.
it only looks at the previous non-nop instruction
to see if it sets our compare value register.
we have to wait for the pcmconv process to exit before
exiting yourselfs because otherwise pcmconv could
keep /dev/audio open and prevent further reopens for
a short period of time.
old ramfs had a limit on the number of files it could serve
and file size was limited to maximum allocaiton size.
the new implementation uses multiple memory chunks to back file data
in a private compactable memory pool to overcome these limits.
files can be sparse. file metadata is maintained by 9pfile data
structures of lib9p.
mischief → ; import -p tcp!9.offblast.org!17007 / /n/9
mischief → -> import: can't mount /: EOF receiving fversion reply
mischief → on the console
mischief → bmo Mar 13 18:55:30 dialing tcp!9.offblast.org!17007
mischief → bmo Mar 13 18:55:30 reconnected to tcp!9.offblast.org!17007
mischief → bmo Mar 13 18:55:30 connected from 199.191.58.44
mischief → bmo Mar 13 18:55:34 exiting...bmo Mar 13 18:55:30 dialing tcp!9.offblast.org!17007
mischief → bmo Mar 13 18:55:30 reconnected to tcp!9.offblast.org!17007
mischief → bmo Mar 13 18:55:30 connected from 199.191.58.44
mischief → bmo Mar 13 18:55:34 exiting...
mischief → aan is dialing the *exportfs* port because i explicitly specified it
netfd is initially zero (stdin), when filter() closes fd0,
fd0 is free to be reused. this causes problems with openmount()
that assumes sfd being >2.
instead, we dup the our pipe end over netfd, and close the pipe.
