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143 commits

Author SHA1 Message Date
heinrich5991 1a35595bce Unify buffer handling in UDP sockets across operating systems 
Previously, only Linux used an internal buffer (for optimized
receiving). Now all OSs use an internal buffer so that the call to
`net_udp_recv` behaves the same on all platforms.
 2022-03-05 14:11:03 +01:00
heinrich5991 a8664a0100 Hide the recvmmsg as an implementation detail 2022-03-04 19:33:06 +01:00
heinrich5991 3211b1de67 Remove unused Flags argument in network code 2022-03-04 19:33:06 +01:00
heinrich5991 471bb441a1 Move NETSOCKET behind a pointer so it can grow 2022-03-04 19:33:06 +01:00
Dennis Felsing e2c48ec47e Don't try to send messages outside of sv_max_clients (fixes# 4750) 2022-02-21 16:33:53 +01:00
Dennis Felsing cc4be4b3b1 s/errornous/erroneous/g 2022-02-21 15:54:55 +01:00
Dennis Felsing 68e4eb21d5 Add modernize-use-bool-literals 2022-02-15 00:12:52 +01:00
Jupeyy a663799188 uint64 -> uint64_t, int64 -> int64_t 2021-06-24 17:19:17 +02:00
heinrich5991 7663641ed2 Fix some variable name's style 2020-11-08 17:15:48 +01:00
def 165857a5a8 Fix variable names manually 2020-11-02 22:40:40 +01:00
def b1f0fd8969 Enable modernize-loop-convert clang-tidy check 
and run clang-format afterwards

https://clang.llvm.org/extra/clang-tidy/checks/modernize-loop-convert.html
 2020-11-02 22:40:24 +01:00
def 3be8a592e5 Run clang-format 
Purely automatic change. In case of conflict with this change, apply the
other change and rerun the formatting to restore it:

$ python scripts/fix_style.py
 2020-09-26 21:50:15 +02:00
Andrii cec8bf2195 Read server port from CNetServer but not from app config 2020-08-27 19:54:44 +03:00
heinrich5991 2db4e2a3c8 Fix the same token being generated for each client 
Theoretically, a regression test would be nice here, but we don't really
have the infrastructure…

This fixes a spoofing vulnerability.
 2020-08-10 22:38:49 +02:00
Learath 28905c4659 Disable timeout for 0.7 clients 2020-06-20 19:52:23 +03:00
Learath da68923ac3 Implement a switch for 0.7 compatibility 2020-06-19 22:08:41 +03:00
Learath 2f760e3e40 Forgot to drop port 2020-06-19 20:28:55 +03:00
Learath 88ca573682 Serverinfo and Register support for 0.7 
Co-authored-by: Tim Schumacher <tim@timakro.de>
 2020-06-19 20:28:55 +03:00
Learath f9cc634683 Fix recvmmsg issue 2020-06-19 20:28:54 +03:00
Learath f7e9df7abf Move the rest of the translation to CServer 2020-06-19 20:27:15 +03:00
Learath b0e5a37fa9 Do message translation differently 2020-06-19 20:27:15 +03:00
Tim Schumacher 442148a194 Begin work on 0.7 support 2020-06-19 20:27:15 +03:00
def 85bb376bdc sv_server_info_per_second, sv_van_conn_per_second: allow 0 to disable 
Clean up code a bit, also allow larger values
 2019-06-11 18:12:43 +02:00
Dennis Felsing cde07b420b Implement changes suggested by -Wuseless-cast 
But don't enable it yet because I'm not sure what the best way is.
 2019-04-11 19:54:43 +02:00
heinrich5991 e3657ab2d5 Use SHA256 instead of MD5 in some places 
This only works in places where the actual choice of hashing function
doesn't matter.
 2019-04-06 02:56:29 +02:00
heinrich5991 e44b1ca986 Use OpenSSL md5 if it is available 
Fixes #1582.
 2019-04-06 02:56:29 +02:00
def a116ed3dbe Revert "New try at not decompressing unknown packets" 
Causes connection problems with old clients
This reverts commit a3b07dbf9c.
 2018-12-30 12:22:05 +01:00
def 4b92e72763 Prevent copies 2018-12-17 22:15:41 +01:00
Dennis Felsing 9febf58f37 New try at recvmmsg with some improvements 2018-12-16 22:59:41 +01:00
def a3b07dbf9c New try at not decompressing unknown packets 2018-12-16 22:15:45 +01:00
def d884465710 Revert "Don't decompress packets from unknown IPs" 
This reverts commit 9089c2b35a.
 2018-12-14 17:12:49 +01:00
Dennis Felsing 0b256ff653 Allow connecting clients to compress 
TODO: Look for better solution
 2018-12-14 11:17:15 +01:00
Dennis Felsing 9089c2b35a Don't decompress packets from unknown IPs 2018-12-13 16:24:37 +01:00
heinrich5991 c7750f3616 Don't ignore CONNECT packets with data that we don't know 
This specifically affects 0.6.5. Just treat them the same way as those
without any data.
 2018-10-14 08:18:32 +02:00
Learath 5b95eddca1 DRY with net_addr_comp_noport 2018-10-08 21:04:04 +03:00
def 18529fa082 Revert "Implement recvmmsg" 
This reverts commit de5fe64be5.
 2018-07-29 23:07:59 +02:00
Dennis Felsing de5fe64be5 Implement recvmmsg 2018-07-25 16:06:00 +02:00
yangfl 81a39c229b Fix typo 2018-07-10 17:29:02 +08:00
heinrich5991 9454dfbff9 Remove superfluous parameter from CServer::NewClientNoAuthCallback 
The `Reset` parameter was only ever set to true, at the only call site.
 2018-05-09 23:50:25 +02:00
heinrich5991 6247aa0c7f Enable -Wextra and -Wformat=2 
Also annotate `dbg_msg`, `str_format` and `str_timestamp_ex` so that the
compiler can determine whether the format strings are correct.

Fix the compiler warnings generated by these extra warnings -- some of
them were security issues.
 2017-07-27 20:38:17 +02:00
heinrich5991 1d81d56850 Introduce new, vanilla-compatible server info protocol 
This means that we have a reliable and fast way to query for extended info,
while also not wasting network bandwidth.

The protocol is designed to be extensible, there's four bytes space for
encoding more request types (currently zeroed), and there's one string in each
response packet and one string for each player available (currently the empty
string).

The protocol itself has no problems with more than 64 players, although the
current client implementation will drop the player info after the 64th player,
because it uses a static array for storage.

Also fixes #130, the player list is just sorted each time new player info
arrives.
 2017-03-29 12:56:13 +02:00
necropotame b8e4e5beea Fix style in several places 2017-03-22 19:45:14 +01:00
Dennis Felsing 45bf601570 Merge pull request #495 from heinrich5991/pr_ddnet_smaller_dummy_map 
Reduce dummy map size from 549 bytes to 191 bytes
 2016-07-03 23:26:42 +02:00
heinrich5991 0244640aca Also don't send the token magic to unsupported clients 
Since only the client can initiate the secure session, there's basically
no reason to send this magic to clients which didn't advertise the
feature.
 2016-06-08 09:57:17 +02:00
Dennis Felsing 3dd2f23d45 Merge pull request #499 from heinrich5991/pr_ddnet_no_tokens_for_vanilla 
Don't send token to harmless vanilla clients
 2016-06-07 16:22:29 +02:00
heinrich5991 a2e64f0a16 Don't send token to harmless vanilla clients 2016-06-07 15:52:57 +02:00
heinrich5991 4d6657e3f1 Fix CRC of dummy map 2016-05-26 11:06:56 +02:00
heinrich5991 b075f1ff1b Use a dummy map with background 2016-05-25 23:47:34 +02:00
heinrich5991 702ed7e023 Reduce dummy map size from 549 bytes to 191 bytes 
Also include a tool to generate said map; the map is generated without
any hacks. It could likely be made smaller using a few tricks.
 2016-05-24 01:47:04 +02:00
heinrich5991 e353aa80b2 Don't send uninitialized memory over the network 2016-05-23 11:48:23 +02:00