Josh Bleecher Snyder
f93fe2c43b
fix include line
2021-07-13 16:03:28 -07:00
Josh Bleecher Snyder
8ae85389e7
add link to gist for future capability probing
2021-07-13 15:17:20 -07:00
kadmin
07374071d0
net/uring: add probing capability
...
Adds the ability to probe for various capabilities. It will not call into C unless
necessary. It also allocates one probe per call to new capability, which may be expensive, so in
theory they could be reused instead.
Signed-off-by: kadmin <julianknodt@gmail.com >
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
c0deb1c65e
now with more sudo
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
fff4cd99ae
install liburing (test run)
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
ce52a5631b
Revert "eliminate prefetch"
...
this breaks graceful shutdown. details TBD.
This reverts commit a474e79bf8967a573f05d07cee0b1abdbee4608a.
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
e33d6a049b
eliminate prefetch
...
looks like a premature optimization
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
abafdc6292
add TODO
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
934709fd7a
refactor out common write code
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
ba6c48c9e9
whitespace
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
72e8ab8781
port udp improvements to file
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
f355e685ef
aesthetic tweaks
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
385851de40
waitCompletion retry on EINTR
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
61cde40000
use syncs, start reworking file
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
0132d52e9a
make tests psas
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
ed0f50f924
split into several files
...
file for file stuff
tun for tun stuff
udp for udp stuff
io_uring for general uring stuff
also make build tags suffice
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
dd94b37ef3
remove completed TODO
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
c7cd8a7bae
docs
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
5023b6b0c3
make ipv4/ipv6 code parallel
...
and thus more clearly correct
weirdly, since it is using unsafe
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
152038cabd
simplify, docs
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
8a7b42a557
move code around
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
8478d34cca
doc and improve shutdown refcounting
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
f329d69fb4
docs
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
a1a2fb9181
more whitespace
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
4847a89ecf
spit. not so much polish.
2021-07-13 15:15:16 -07:00
kadmin
58c556ad15
net/uring: add go ntohs
...
Instead of calling out to C for ntohs, just implement it in Go for effiency.
Signed-off-by: kadmin <julianknodt@gmail.com >
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
334c09ab19
comment more
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
3e6e5a2eee
incorporate recvOut into recvReqs
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
6ec3378f7b
remove more dead code
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
385f86e85f
document, cull dead code
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
52ccff8835
WIP: clean shutdown for UDP conn
...
this appears to work, most of the time.
there's lots of documentation work remaining,
thinking through the structure remaining,
testing remaining,
porting to file remaining (if appropriate).
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
2118b821cd
remove dead code
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
1e3e5fd8e7
overhaul error handling of peek/waitcompletion
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
e0d8dcf3eb
refactor
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
c1bc58defc
set sin_family (oops)
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
7cb1369b19
remove some TODOs, make ip address extraction equally awful
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
f274a0cfab
simplify change point
...
at the cost of some very, very naughty unsafe
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
f71ff18c11
convert manual tests into automated tests
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
961a23b9df
tewak
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
f27a61502d
start cleaning up code
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
a98ed81f2e
ipv6 support, UNTESTED, super hacky
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
275cb37031
comments
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
9559752cb5
fix io_uring tun device reads
...
Well that's an interesting one!
Apparently if you issue multiple concurrent preadv calls on
a TUN device using io_uring, the TUN device falls over.
Possibly corrupting memory along the way.
Which might be why the kernel hung on shutdown...
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
78dbd02718
make it easy to toggle uring on/off
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
4d58223422
switch file.go to test reads instead of writes
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
b05f305eaf
simpler init
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
e337ed2033
stick closer to upstream tun reading code
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
0fb656794c
make cgo pointer rules happy
...
well that was a mess
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
283614d5e9
use io_uring for sendmsg
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and clean up some dead code and unify some things
2021-07-13 15:15:16 -07:00
Josh Bleecher Snyder
11036e23a1
disable polling for now
...
we'll maybe bring it back with a token bucket or something.
and/or do multi-sqe submission.
2021-07-13 15:15:16 -07:00
