Commit graph

3457 commits

Author SHA1 Message Date
Simon Arlott
01dd3da541
rb_string_to_array: document parv array size 2016-10-22 22:36:47 +01:00
Aaron Jones
42e6fbaa8c
OpenSSL: Adjust ciphersuite order and update documentation 2016-10-18 11:17:41 +00:00
Aaron Jones
98c4aaeaff
MbedTLS: Adjust ciphersuite order and update documentation 2016-10-18 11:16:38 +00:00
Aaron Jones
d7f66fc3bf
README: Fix location of channel 2016-10-15 12:57:26 +00:00
Aaron Jones
23f5c31719
SASL: Relax rate limiting for failures a little
Begin at 8 seconds after 2 failures and up to ~4 minutes
2016-10-02 14:13:02 +00:00
Aaron Jones
8e3d0668a4 Merge pull request #221 from Xenthys/release/4
Added kick immunity to umode +p (oper-override)
2016-10-02 10:02:02 +00:00
Aaron Jones
c4a51af37c Merge pull request #222 from Xenthys/release/4+sasl
SASL: rate-limit after the 2nd failed attempt (m_sasl.c)
2016-10-02 09:50:57 +00:00
Xenthys
46ef49c390
SASL: rate-limit after the 2nd failed attempt (m_sasl.c) 2016-10-02 03:57:11 +02:00
Xenthys
bd2c29f738
Added kick immunity to umode +p (oper-override) 2016-09-29 00:34:53 +02:00
Aaron Jones
c6d884e877
whois: check target is an oper before assuming they have a privset
The CHALLENGE functionality will set opername but not privset --
if an oper performs a WHOIS on someone currently half-way through
a challenge we will perform a NULL dereference.

Related to ircd-seven commit d7b05f7583babf6
2016-09-20 13:47:55 +00:00
William Pitcock
b1c32af98e helpops: add duplication guards on helper/dehelper state changes 2016-09-18 17:11:32 -05:00
Aaron Jones
56fbe141a1
GNUTLS: Forward-port release/3.5 improvements
The changes made in this file are detailed in release/3.5 commits
4d89c83c32 through ecfdcb08e8 inclusive.

Some slight alterations are necessary; librb instead of libratbox,
snprintf() instead of rb_snprintf(), etc. Also, release/4 has
offline certificate digesting functionality. For more insight,
simply diff the gnutls.c between release/3.5 and release/4.
2016-09-17 17:53:01 +00:00
Aaron Jones
dd066596dc
MbedTLS: Forward-port release/3.5 improvements
The changes made in this file are detailed in release/3.5 commits
295c8f7d37 through 265dc4e53c inclusive.

Some slight alterations are necessary; librb instead of libratbox,
snprintf() instead of rb_snprintf(), etc. Also, release/4 has
offline certificate digesting functionality. For more insight,
simply diff the mbedtls.c between release/3.5 and release/4.
2016-09-17 17:19:31 +00:00
Aaron Jones
73470f0b3c
OpenSSL: Forward-port release/3.5 improvements
The changes made in this file are detailed in release/3.5 commits
1f30c8943b through 92c04c6b9d inclusive.

Some slight alterations are necessary; librb instead of libratbox,
snprintf() instead of rb_snprintf(), etc. Also, release/4 has
offline certificate digesting functionality. For more insight,
simply diff the openssl.c between release/3.5 and release/4.
2016-09-17 17:03:21 +00:00
William Pitcock
087555a00f ircd: introduce 'no-export' links
Links that are 'no-export' are not distributed to the rest of the IRC network (including local peers).
This provides a core primitive for 'anycasting' services (but the actual issue of synchronizing data in
a services package is left to the authors of the services package).
2016-09-16 17:18:55 -05:00
William Pitcock
4d3f8ead19 helpops: fix up graph cleanup for helpers_list 2016-09-16 17:02:50 -05:00
William Pitcock
5a12d0b1e8 extensions/chantype_dummy: ^ is a valid nickchar, but > isn't 2016-09-16 14:12:29 -05:00
William Pitcock
1e706d5ae2 NEWS: document new CHANTYPES api 2016-09-16 14:08:04 -05:00
William Pitcock
1cfc0cd9f2 extensions/chantype_dummy: cleanups 2016-09-16 14:07:54 -05:00
William Pitcock
1af4eff6f6 channels: fix IsChannelName() to actually use IsChanPrefix(). 2016-09-16 14:02:41 -05:00
William Pitcock
6e86cdd6d6 supported: fix up CHANTYPES 2016-09-16 14:00:00 -05:00
William Pitcock
75980a5e2f extensions: add new module adding ^channels (which are just like #channels) 2016-09-16 13:55:44 -05:00
William Pitcock
01978a2c8c supported: add chantypes_update() 2016-09-16 13:49:02 -05:00
William Pitcock
f3b84221d0 match: allow the CharAttrs table to be modified at runtime 2016-09-16 13:09:44 -05:00
William Pitcock
e47c4be18c helpops: MyClient() check is wrong, we only care if it is a Person or a Server 2016-09-16 12:57:34 -05:00
William Pitcock
8093dc5fb7 helpops: handle cleaning up remote opers from the helpops list 2016-09-16 12:56:18 -05:00
William Pitcock
a4840ff1d8 Merge pull request #217 from Xenthys/release/4
m_grant.c - fixed remote grant support
2016-09-15 22:06:40 -07:00
Stephen Bennett
f32b9ebd63 Add hooks for local and remote nick changes 2016-09-16 00:04:16 -05:00
Aaron Jones
6d16f66be6
msgbuf: Fix remote crash vulnerability due to malformed message tag.
Fixes #218

Reported-by: ManiacTwister <github@s7t.de>
2016-09-11 10:35:13 +00:00
Xenthys
89aef424e9 m_grant.c - fixed remote grant support 2016-09-10 17:54:13 +02:00
Aaron Jones
c4acd427ac
MbedTLS: Misc backend cleanups
This is a forward-port of release/3.5 commit 566f4678

* Add generic direction enum for negotiation setup.

* Rename a rather long wrapper function to a shorter one consistent with
  what it does.

* Rework context setup function.

* Don't check for handshake state before beginning handshaking.

  The old backend began a handshake and then stepped into the callback
  function if it was interrupted; the current one just jumps right into
  it, so there is no need to check if it has previously succeeded,
  because it hasn't been attempted yet.

* Add missing errno assignment to one of the handshake wrappers.

* Don't bother checking if SSL_P(F) is NULL when we already checked if
  F->ssl is NULL -- this should be impossible.

* Don't bother checking if SSL_C(F) is NULL -- this was a no-op.

* Change the socket send and recv functions to not peer into a foreign
  ratbox structure -- use the correct function to get the socket fd.

* Rewrap some lines and function arguments.

Other backends will be brought into line with this backend soon.

This will enable easier maintenance of the backends, by reducing the
diffs between them, which should make different behaviour easier to
spot.
2016-09-10 08:51:09 +00:00
Aaron Jones
73c486c7a5
MbedTLS: Treat 0 bytes read/written to socket properly
At the moment, if a link quits in just the right (wrong [1]) way,
the quit reason will resemble:

    <-- foo (~bar@baz) has quit (Read error: (-0x0) )

This should resolve that.

[1] Peers should send a close_notify alert before abruptly shutting
    down their socket. This will result in a sane quit message:

    <-- foo (~bar@baz) has quit (Read error: (-0x7880) SSL -
    The peer notified us that the connection is going to be closed)

[ci skip]
2016-09-09 01:47:18 +00:00
Aaron Jones
7272518795
MbedTLS: Initial attempt to port release/3.5 commit 89d4c468 to this branch 2016-09-04 03:50:29 +00:00
Aaron Jones
ac88154f94
SASL: Disallow beginning : and space anywhere in AUTHENTICATE parameter
This is a FIX FOR A SECURITY VULNERABILITY. All Charybdis users must
apply this fix if you support SASL on your servers, or unload m_sasl.so
in the meantime.
2016-09-03 17:29:53 +00:00
Simon Arlott
86e1de17f3
ircd: serv_connect: initialise sa_connect/sa_bind to AF_UNSPEC
These are read to check if they're AF_UNSPEC (unset) but they aren't
initialised.
2016-09-03 14:52:48 +01:00
Simon Arlott
1315fd5920
librb: set sockaddr port to 0 in success path
Instead of only in the failure path, which causes
all sorts of annoying server connection failures
when we try to repeatedly reuse the same port.
2016-09-03 14:36:17 +01:00
Aaron Jones
94f114641c
OpenSSL: Initialise if LibreSSL
LibreSSL's definition of OPENSSL_VERSION_NUMBER bites us in the ass,
*again*.
2016-09-01 19:29:47 +00:00
Aaron Jones
572c2d4b05
OpenSSL: Initialise one context at a time
If initialising the server context fails, but the client one succeeds,
we will not only leak memory, but the error message reported for
initialising the server context might not make sense, because we
initialise the client context after and that could erase or change the
list of queued errors.

This scenario is considered rare. Nevertheless, we now initialise the
client context after *successfully* initialising the server context.
2016-08-30 10:30:17 +00:00
Aaron Jones
0942c1fc26
Print initialisation notice before forking 2016-08-24 16:44:04 +00:00
Jason Volk
c1fc044c35
ircd: Fix umode orphan scheme.
Cherry-picked from jevolk/charybdis f5e7f335
Reformatted slightly.
2016-08-24 16:12:05 +00:00
Aaron Jones
f4e9d91580
startup: fork before initialising the event subsystem
On FreeBSD 4.8, fork(2) doesn't actually behave like fork(2).

Namely, kqueue(2) descriptors are not inherited by the child.
IOW, we can't fork(2) after we get the kqueue(2) descriptor.

So we'll just have to rely on people to actually read the
server log file if they want to understand why their server
is dying during startup.
2016-08-21 22:29:16 +00:00
Aaron Jones
0c23c0b1c5
Attempt to open /dev/null before forking incase it would fail 2016-08-21 00:32:34 +00:00
Aaron Jones
0c433865d3
Attempt #2 at fixing the file descriptor mess.
This commit defers daemonisation to the end of initialisation
as that makes it vastly simpler to get this right.
2016-08-21 00:15:17 +00:00
Aaron Jones
ef24ede3e2
Revert "ircd startup: avoid black magic with file descriptors"
This reverts commit 27c0f6d8f4.

A more extensive investigation and refactoring of the code is
necessary.
2016-08-20 22:22:37 +00:00
Aaron Jones
27c0f6d8f4
ircd startup: avoid black magic with file descriptors
This *should* fix a reported but as yet unreproducable
ircd abort on restart.
2016-08-20 21:14:53 +00:00
Jason Volk
ffedad8dfb ircd: Allow non-default CAP_MASK during server estab. 2016-08-20 04:10:28 -07:00
Aaron Jones
31145ea0b3
TLS Backends: Harmomise the rb_ssl_get_cipher() function
The GNUTLS backend reports the version in use for the client as well
as its ciphersuite -- do the same for the other 2 backends.
2016-08-20 04:16:33 +01:00
Aaron Jones
4906854293
GNUTLS: Avoid null dereference in constructing ciphersuite 2016-08-19 20:26:43 +00:00
Aaron Jones
6971019a09
GNUTLS: Cleanup fingerprint generation
Removes intermediate buffer, properly check return values
2016-08-19 19:14:40 +00:00
Aaron Jones
fd9f652150
README: Clarify that OpenSSL is not required for ECDHE 2016-08-15 10:53:31 +00:00