Edited by @aaronmdjones:
- Correct some data types and casts
- Minor style fixups (e.g. we put * on the variable name not the type)
- librb/src/openssl.c:
- Defer call of BIO_free(3ssl) to the end of the conditional block
to avoid having calls to it in multiple paths
- Check the return value of SSL_CTX_set0_tmp_dh_pkey(3ssl) because if
it fails then we must use EVP_PKEY_free(3ssl) to avoid a memory leak
This could fail if, for example, the user supplied DSA parameters
in the DH parameters file instead.
- ircd/newconf.c:
- Check whether OSSL_DECODER_CTX_new_for_pkey(3ssl) was able to parse
the given CHALLANGE public key as a valid RSA public key, and then
check whether OSSL_DECODER_from_bio(3ssl) actually loads it
successfully
- ircd/s_newconf.c:
- Use EVP_PKEY_free(3ssl) instead of OPENSSL_free(3ssl) on EVP_PKEY
pointers; this will avoid inadvertent memory leaks if the EVP_PKEY
structure contains any dynamically-allocated child members
- modules/m_challenge.c:
- Unconditionally use EVP(3ssl) to generate the SHA-1 digest of the
random challenge; this API has been around for a very long time and
is available in all supported versions of OpenSSL
- Add lots of error checking to all steps of the process
Tested against 1.1.1 and 3.0; both with missing and provided DH parameters
(which works as you'd expect; the server will not negotiate a DHE cipher
without them), and CHALLENGE, including missing keys or keys of the wrong
type (e.g. when you supply an EdDSA key instead of an RSA key).
This does break compatibility with OpenSSL 1.1.0 and below, which are now
all end-of-life and unsupported anyway.
Closes#357
Move opername and privset storage to struct User, so it can exist for
remote opers.
On /oper and when bursting opers, send:
:foo OPER opername privset
which sets foo's opername and privset. The contents of the privset on
remote servers come from the remote server's config, so the potential
for confusion exists if these do not match.
If an oper's privset does not exist on a server that sees it, it will
complain, but create a placeholder privset. If the privset is created by
a rehash, this will be reflected properly.
/privs is udpated to take an optional argument, the server to query, and
is now local by default:
/privs [[nick_or_server] nick]
Also fix up some return values and stuff to use bool (or void if
nothing). I just did it whilst I was here.
According to jilles, the return value used to signify whether or not the
client had exited. This was error-prone and was fixed a long, long time
ago, but the return value was left int for historical reasons.
Since the return type is not used (and has no clear use case anyway),
it's safe to just get rid of it.
Specifying need_ssl on auth{} denies the connection if
it is not SSL/TLS, much like need_ident or need_sasl.
Specifying need_ssl on operator{} refuses opering with
ERR_NOOPERHOST if the connection is not SSL/TLS.
from ircd-ratbox
