Alibek Omarov
e5c4e49782
engine: client: introduce cookie protocol extension, when client connects to the server, it provides randomized 64-bit value to be prefixed into netchan messages
...
* Prevent clientuseragent from leaking data.
* Process qport in netchan, cleaning up code
2026-05-26 02:14:58 +05:00
Alibek Omarov
d61983a5d2
engine: randomize outgoing_sequence on server side
2026-05-26 02:14:58 +05:00
Alibek Omarov
c3f4eb026b
engine: only allow net_sequence_window packets, prevent sudden, usually impossible, jumps
2026-05-26 02:14:58 +05:00
Alibek Omarov
996dcc637d
engine: tighten file fragment msg by the (possibly) trunctated frag_message
2026-05-23 21:23:10 +05:00
Alibek Omarov
8b89bdca6f
engine: validate size of the message before passing it to COM_UnMunge2
2026-05-23 21:23:10 +05:00
Alibek Omarov
09f15042fe
engine: add target buffer size argument to MSG_ReadBits and MSG_ReadBytes
2026-05-23 21:23:10 +05:00
Alibek Omarov
25ca2ecb12
engine: fix Netchan_Validate units bug allowing oversized fragments
2026-05-23 03:12:23 +05:00
Alibek Omarov
f6b28e32e2
engine: fix use-after-free in Netchan_CopyNormalFragments on decompression failure; reject oversized fragmented messages.
2026-05-23 02:53:26 +05:00
Alibek Omarov
e118376735
engine: take total size to decompressors in Netchan_CopyNormalFragments, fix underflow when decompressing bzip2 stream
2026-05-23 02:42:28 +05:00
Alibek Omarov
c6c1163aa0
engine: common: refactor variable declarations
2026-05-20 23:24:36 +05:00
a1batross
4c2302ec6c
engine: pass customization file fragments into IsSafeFileToDownload
...
This function already validates customization filenames.
2026-05-20 01:03:03 +05:00
Alibek Omarov
9d050e7ed3
engine: limit decompressed buffer alloc size to 64MiB
2026-05-17 11:17:23 +05:00
Alibek Omarov
be35b3503e
engine: limit maximum amount of pending fragbufs
2026-05-17 10:54:51 +05:00
Alibek Omarov
9082a47348
engine: validate paths before downloading
2026-05-17 10:41:59 +05:00
Alibek Omarov
2dc132f817
engine: common: fix up warnings, clean up unused variables
2026-05-13 10:13:52 +05:00
Alibek Omarov
086cb6aab8
engine: move {gamedir}/downloaded directory to {gamedir}_downloads for compatibility
...
Some mods like Sven-Coop 4.8 stupidly open game files directly and need this to
load downloaded soundcache.
2026-05-07 10:32:00 +05:00
Alibek Omarov
5383e36af5
engine: net_chan: fix off-by-one error when trying to decompress packet
2026-04-19 20:50:42 +05:00
Alibek Omarov
897fb98b93
engine: net_chan: fix Netchan_AddBufferToList leaking pointer
2026-04-19 20:43:32 +05:00
Alibek Omarov
b68e71abfd
engine: net_chan: explicitly convert qboolean to uint before right shift to 31 bits
2026-04-05 07:03:46 +05:00
Alibek Omarov
eacc35d9e1
engine: replace COM_CheckString and COM_CheckStringEmpty by COM_StringEmptyOrNULL and COM_StringEmpty
2026-02-21 01:20:34 +05:00
Alibek Omarov
cfa8e639f1
engine: drop legacy protocol support
2025-12-01 13:03:53 +05:00
Sergey Degtyar
000304ddde
engine: net_chan: added bz2 compression for file fragments
2025-07-16 23:54:56 +05:00
Alibek Omarov
1e075d25b7
engine: make LZSS compression optional for 49 protocol, disable it for local clients (singleplayer)
2025-01-22 21:18:19 +03:00
Alibek Omarov
3e93aa459d
engine: net_buffer: turn bit write and read masks into predefined arrays, so we don't have to call InitMasks
...
In future, net_buffer might get moved to libpublic.
Also, get rid of 32-th bit write mask, it's only get used when we're trying to
write zero bits value which is nonsense.
2025-01-18 09:54:11 +03:00
Alibek Omarov
df4194ca57
engine: net_chan: check BZ2 functions return value and log if it's not BZ_OK
2024-11-28 19:27:13 +03:00
Alibek Omarov
888599677e
engine: net_chan: fix size of outgoing BZ2 compressed packets
2024-11-28 18:50:55 +03:00
Alibek Omarov
c3b6422ad0
engine: common: add lzss fixes by nillerusr
2024-11-06 01:39:46 +03:00
Alibek Omarov
2656eb1aeb
engine: fix A2S_GOLDSRC_INFO, it must always include Source Engine Query and a null terminator
2024-10-26 20:24:31 +03:00
Alibek Omarov
3956e3863e
engine: make Netchan_TransmitBits accept const data
2024-10-26 19:19:37 +03:00
Alibek Omarov
a3e26a21a7
engine: common: net_chan: as we expect pfnBlockSize to be always set, use it to determine if netchan was initialized or not
2024-10-21 02:30:49 +03:00
Alibek Omarov
12edd782c6
engine: common: net_chan: always rely on pfnBlockSize being non-null
2024-10-16 06:59:33 +03:00
Alibek Omarov
ece204c30f
engine: common: add cvars net_send_debug and net_recv_debug to print server/client messages to console
2024-10-15 06:11:57 +03:00
Alibek Omarov
f52c825bf5
engine: make some global variables static and const, make even more functions static if possible
2024-10-14 19:19:46 +03:00
Alibek Omarov
6bdc1941e6
engine: common: netchan: only compress with BZip2 when it's efficient
2024-10-10 23:40:23 +03:00
Alibek Omarov
8d731b5d15
engine: common: fix for dedicated again
2024-10-08 16:41:25 +03:00
Alibek Omarov
38c0dc4551
3rdparty: bzip2: properly use stdio-free version, don't include tests and utils to the build
2024-10-08 15:39:56 +03:00
Alibek Omarov
9970c56218
engine: common: disable bzip2 for dedicated server, it's not used there
2024-10-08 12:14:37 +03:00
Alibek Omarov
c1a5f173b8
engine: common: add GoldSrc netchan support
2024-10-08 03:28:02 +03:00
Alibek Omarov
bd2a44dbdd
engine: common: fix fragbuf_t definition so it has true standard flexible array member
2024-08-10 13:46:00 +03:00
Alibek Omarov
f0b4c42c68
engine: common: faster and simpler Netchan_OutOfBand
2024-08-08 04:37:16 +03:00
Alibek Omarov
8994f079a5
engine: common: don't uselessly copy data in Netchan_OutOfBound when playing a demo
2024-08-07 02:28:58 +03:00
Alibek Omarov
d6e77e531d
engine: fix memory leak in netchan
...
frag_message_buf wasn't always freed alongside with fragbuf_t
instead of ensuring frag_message_buf being freed, I turned it into
a flexible array member
2024-08-03 08:40:33 +03:00
Alibek Omarov
7bb5175084
Turn downloaded/ and custom/ into com_strings.h definitions, like sound path and saves path
2024-07-30 15:25:20 +03:00
Alibek Omarov
d56e53a347
Replace hardcoded functions names by __func__ macro
...
* while we're here, fix some possible bugs
* and fix -Wformat=2
s/__FUNCTION__/__func__/g
awawawa
2024-06-19 06:53:42 +03:00
Alibek Omarov
33a1416199
engine: common: net_chan: remove unneeded check for demo and remote address in netchan, as it's handled in client and server already
2024-06-15 13:44:26 +03:00
Alibek Omarov
f62aa051c8
engine: common: make netchan cvars static
2024-06-15 08:44:19 +03:00
Alibek Omarov
ea21438637
engine: netchan: append .ztmp extension instead of replacing original extension
...
* so we don't send wrong file that has same name but different extension
* validate filename size so it won't get truncated in fragbuf_t
2024-05-30 04:50:58 +03:00
Alibek Omarov
c77f290bc6
engine: remove Netsplit_SendLong, as we're not planning to support old protocol on server side
2024-01-28 10:00:51 +03:00
Alibek Omarov
75d476f9df
engine: fix -Wmissing-prototypes
2024-01-28 09:55:18 +03:00
Alibek Omarov
b39378a6da
engine: common: fix warning about read-only cvar. In fact, we should force set them.
2023-07-22 05:50:38 +03:00
