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373 commits

Author SHA1 Message Date
Kim Alvefur
ea7bf939d5 util.signal: Factor out single #define that enables signalfd(2) use 
Makes it easier to test by disabling this #define
 2025-01-10 12:31:27 +01:00
Kim Alvefur
4919301ad4 util.signal: Implement signalfd for *BSD 
The Lua hook based signal handling does not work correctly if signal
handling is setup in a coroutine. signalfd solves that in a nice way,
but is Linux-only.
 2025-01-10 03:18:46 +01:00
Matthew Wild
a3b71e8fc9 util.pposix: Add fdopen() to return a Lua file object from an fd 
Now we can, for example, read/write pipes using Lua's standard I/O routines.
 2024-11-20 12:08:59 +00:00
Matthew Wild
6480651a93 util.pposix: Add pipe() (with support for pipe2() flags on Linux) 2024-11-16 12:26:55 +00:00
Stephen Paul Weber
d477528e67 util.crypto: Add more ECC methods 
pkey_meth_derive: to derive a shared symmetric key from two ECC keys
pkey_meth_public_raw: to get the raw form of the public key
import_public_ec_raw: to import the raw form of the public key
generate_p256_keypair: key generation for the P-256 curve
 2024-10-29 09:15:50 -05:00
Kim Alvefur
36a9583069 util.signal: Fail signalfd() if unable to change signal mask 
By aborting early, the failure should be brought to the attention
somehow.
 2024-02-28 22:31:06 +01:00
Kim Alvefur
761643abcc util.signal: Wrap signalfd in an userdatum for gc handling etc 2024-02-24 01:00:44 +01:00
Kim Alvefur
54f76b97d2 util.signal: Add support for signalfd(2) on Linux 
signalfd allows handling signal events using the same method as sockets,
via file descriptors. Thus all signal dispatch can go through the same
main event loop as everything else, removing need for thread-scary
signal handling where execution would just jump to the signal handler
regardless of the state of Lua, and needing to keep track of Lua
states/threads.
 2024-02-24 00:05:29 +01:00
Matthew Wild
7f748556a2 util.strbitop: Add common_prefix_bits() method 
This returns the number of bits that two strings have in common. It is
significantly more efficient than similar calculations in Lua.
 2024-02-23 12:08:37 +00:00
Kim Alvefur
8a2e65d5b7 util.poll: Rename things to clarify poll(2) limits 
With epoll(7), MAX_EVENTS controls how many events can be retrieved in one
epoll_wait call, while with poll(2) this MAX_WATCHED controls how many
sockets or other FDs can be watched at once.
 2023-11-27 08:19:52 +01:00
Kim Alvefur
da38e2af42 util.poll: Quadruple number of events retrieved at once from epoll 
Better performance under load maybe?

See b890ceb1c24f for previous increase
 2023-11-21 20:45:56 +01:00
Kim Alvefur
c8e2129a82 util.poll: Return early if given zero timeout and no pending events 
Should have been part of f33887f925e1 to ensure it won't skip processing
timers at all when very busy.
 2023-11-21 17:43:46 +01:00
Kim Alvefur
048b064fcd util.pposix: Add remove_blocks() for deleting parts of files 
Allows implementing e.g. a FIFO

Will probably only work on some Linux file systems like ext4.
 2023-06-07 05:07:03 +02:00
Kim Alvefur
b7b65435f7 util.pposix: Use Lua enum API for resource limit name argument 
Because diffstat.
 2023-06-14 13:39:39 +02:00
Kim Alvefur
8136aa749a util: Add compat for prosody module name change to C sources 2023-03-17 18:03:07 +01:00
Kim Alvefur
bf35a39a15 util.poll: Include unistd.h only for epoll 
This defines close(), which is only used with epoll, hence we don't need
to include it when building in poll or select mode.
 2023-02-10 00:37:05 +01:00
Kim Alvefur
1ea488deee util.crypto: Preemptively silence 'strict-prototypes' warning 
With `gcc-12 -Wstrict-prototypes` the following warning is shown:

crypto.c:43:13: warning: function declaration isn't a prototype [-Wstrict-prototypes]
   43 | static BIO* new_memory_BIO() {
      |             ^~~~~~~~~~~~~~
 2023-01-31 16:27:55 +01:00
Kim Alvefur
2e44f8260b util.struct: Fix typo in comment 2023-01-20 18:19:34 +01:00
Kim Alvefur
732d5ad8a8 util.hashes: Silence compiler warning about char pointer signedness 
Introduced in dbe9781fd278
 2023-01-17 15:30:28 +01:00
Matthew Wild
26dc334ae3 util.crypto: Add support for AES-256-CTR 
This is required by PASETO v3.local
 2023-01-13 14:34:10 +00:00
Matthew Wild
341c8417c2 util.hashes: Add HKDF-HMAC-SHA256/HKDF-HMAC-SHA384 
These are needed for PASETO v3.local.
 2023-01-13 14:29:08 +00:00
Matthew Wild
8695a72a66 util.crypto, util.jwt: Generate consistent signature sizes (via padding) 
This fixes the signature parsing and building to work correctly. Sometimes
a signature was one or two bytes too short, and needed to be padded. OpenSSL
can do this for us.
 2022-09-29 23:15:39 +01:00
Kim Alvefur
62438f482e util.crypto: Use Lua 5.2 API for predictable buffer size 
In Lua 5.3 LUAL_BUFFERSIZE is a macro computed from sizeof and is thus
not known at pre-processing time, so this does not work.

Since Lua 5.1 is no longer supported, we can use luaL_prepbuffsize()
which is available from Lua 5.2
 2022-07-11 17:11:38 +02:00
Kim Alvefur
e893bbf681 util.crypto: Use stack space buffers 
Removes assumption that LUAL_BUFFERSIZE is known at pre-processing time,
which it is not in Lua 5.3 and 5.4, where it is a computed macro based
on sizeof.

Allocation of stack space is safer and faster, no need to worry about
luaL_prepbuffer failing to allocate memory and skipping free()
 2022-07-11 17:01:55 +02:00
Matthew Wild
5316b0005e util.crypto: More digests for sign/verify, use macros for clarity/consistency 2022-07-02 14:59:52 +01:00
Matthew Wild
d7b32f1b71 util.crypto: Friendlier error message on incorrect key types 2022-07-02 11:51:24 +01:00
Matthew Wild
ba282f1070 util.crypto: Add support for RSA signatures (PKCS1-v1.5 + PSS) 
These are used by the RS*** and PS*** family of JOSE algorithms (e.g. in JWTs)
 2022-07-02 11:50:56 +01:00
Matthew Wild
b357cf1be1 util.crypto: New wrapper for some operations in OpenSSL's libcrypto 
Specifically, ED25519 key generation/import/export, sign/verify operations,
and AES encrypt/decrypt.
 2022-06-24 16:56:16 +01:00
Matthew Wild
6a64363e78 util-src: Add new utility header managed_pointer.h 
The macros in this header allow creation of GC-managed objects from manually-
managed C alloc/free APIs.
 2022-07-01 15:11:08 +01:00
Kim Alvefur
dabdfc91be util.table: Fix inaccurate comment 
Probably a duplicate of the comment next to Lmove, recorded by mistake

Lpack can probably be removed at some point in the near future once we
are confident it is not used anywhere.
 2022-07-11 20:02:10 +02:00
Kim Alvefur
dff4beae02 util-src: Remove Lua 5.1 compat macros 
Part of #1600
 2022-07-01 21:21:21 +02:00
Kim Alvefur
b1c7b93139 util.hashes: Revert to HMAC() convenience function 
Reverts some of 1e41dd0f8353

Seems HMAC() isn't deprecated after all? Must have been at some point
according to #1589

Twice as fast for some reason.
 2022-06-24 16:59:54 +02:00
Kim Alvefur
8f3d837cd2 util.hashes: Remove unused constants 2022-06-24 16:49:03 +02:00
Kim Alvefur
452f9e4e2b util.hashes: Remove unused struct 
Unused since 9f1c5ae8d70b
 2022-06-24 16:12:11 +02:00
Kim Alvefur
9a96021706 util.hashes: Return OpenSSL error messages on failure 
With luck, might contain more details than just "failed"
 2022-06-24 15:33:04 +02:00
Kim Alvefur
a7567a9055 util.hashes: Add SHA3 bindings 2020-09-10 21:58:24 +02:00
Kim Alvefur
f3d61e3945 util.hashes: Bind BLAKE2 algoritms supported by OpenSSL 2020-09-10 21:58:24 +02:00
Kim Alvefur
9f932f7559 util.hashes: Refactor PBKDF2 to deduplicate code 2020-09-10 21:58:25 +02:00
Kim Alvefur
ae14dc1220 util.hashes: Expose sha224 and sha384 HMAC functions 
For completeness and consistency with set of plain hash functions
 2020-11-29 17:58:45 +01:00
Kim Alvefur
54f8ca81f4 util.hashes: Refactor HMAC bindings (fixes #1589) 
HMAC() is deprecated

As with the regular hash functions, macros like this make it awkward to
apply static analysis and code formatting.
 2020-11-29 17:58:30 +01:00
Kim Alvefur
d690f1502a util.hashes: Refactor hash functions to use OpenSSL EVP methods (fix #1698) 
MD5() is deprecated, but EVP_md5() is not.

Functions in macros like this make it awkward to apply static analysis
and code formatting.
 2020-09-10 21:58:23 +02:00
Kim Alvefur
300813b68b util.crand: Reduce scope here too 
Same as previous commit
 2022-04-23 14:37:43 +02:00
Kim Alvefur
787835d693 util.strbitop: Reduce scope of functions 
Equivalent to 'local' in Lua, these functions are exported via the
luaopen_ function, which is the only one needing to be visible outside
of the file.

Pointed out by Link Mauve at some point, but there wasn't really any
rush here.
 2022-04-23 14:29:43 +02:00
Matthew Wild
ca3d1e1958 util.table: Compatibility with Lua 5.1 lua_equals 2022-03-18 15:29:05 +00:00
Matthew Wild
26605b5197 util.table: Backport table.move() from Lua 5.4 
One difference is that 5.4 accepts "table-like" values (for this and other
table.*() functions), but that would require additional backporting work.
 2022-03-18 15:21:25 +00:00
Kim Alvefur
43351d2b54 Spelling: Fix various spelling mistakes (thanks timeless) 
Words, sometimes I wonder how they even work

Maybe I missed something.
 2022-03-07 00:13:56 +01:00
Kim Alvefur
ffb37f3ef3 make: Fix build of util.struct on *BSD 2022-03-04 17:46:33 +01:00
Matthew Wild
b47c7951d5 Merge config-updates+check-turn from timber 2022-03-04 16:33:41 +00:00
Kim Alvefur
af95bb77e6 util.poll: Add support for the poll() API 
Might be better than select(), more portable than epoll.
 2022-02-23 20:31:03 +01:00
Kim Alvefur
04aa101da3 util.poll: Expose API (epoll or select) used 
Could he handy to know for debugging or decisions
 2022-02-27 14:36:43 +01:00