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Made sure we only include needed include files and checked that
the copyright headers are equal and correct
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This to make it clearer that passwdhash(...) is not good for password
hashing, but suitable when you need a quick hashing algorithm.
The eurephia_quick_hash(...) are now used for password caching hashing,
and is still suitable here since the salt used for the passwords are in
memory only and never written to disk, as they are supposed to be
temporary hashes.
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This new function, eurephia_pwd_crypt(...) implements a modified SHA512
hashing algorithm based on the SHA512 crypt implementation proposed by
Ulrich Drepper for glibc.
The original implementation adds support for variable hashing rounds.
The eurephia version implements dynamic hashing rounds, controlled by
minimum and maximum rounds set in the configuration. If not set, it
will minimum use 5000 rounds and maximum 7500 rounds. The amount of
rounds is supposed to be random.
In addition to this, the salt information is now encoded into a hex
value. In this value the salt length and the hash rounds are defined.
This hex value is then encoded (quasi crypt) based on a modulus of the
sum of the characters in the password + the password length. So if you
give the wrong password, you will also get the wrong salt length and the
wrong number of hashing rounds used.
The default salt length is also increased to 32 bytes (256 bit)
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hashing algorithms
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Moved all OpenVPN plug-in related things into ./plugins, including firewall
Moved all shared code into ./common and moved the generic part of the
database files into ./database
Updated all CMakeLists.txt files and created a new one for the root directory
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