# <anticaps lowercase="abcdefghijklmnopqrstuvwxyz"
# uppercase="ABCDEFGHIJKLMNOPQRSTUVWXYZ">
+#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#
+# Argon2 module: Allows other modules to generate Argon2 hashes,
+# usually for cryptographic uses and security.
+# This module makes the algorithms argon2i, argon2d and argon2id
+# available for use.
+# Note that this module is extra, and must be enabled explicitly
+# to build. It depends on libargon2.
+#<module name="argon2">
+#
+# memory: Memory hardness, in KiB. E.g. 131072 KiB = 128 MiB.
+# iterations: Time hardness in iterations. (def. 3)
+# lanes: How many parallel chains can be run. (def. 1)
+# threads: Maximum amount of threads each invokation can spawn. (def. 1)
+# length: Output length in bytes. (def. 32)
+# saltlength: Salt length in bytes. (def. 16)
+# version: Algorithm version, 10 or 13. (def. 13)
+# The parameters can be customized as follows:
+#<argon2 iterations="3" memory="131074" length="32" saltlength="16">
+# Defines the parameters that are common for all the variants (i/d/id).
+# Can be overriden on individual basis, e.g.
+#<argon2i iterations="4">
+#<argon2d memory="131074"
+#<argon2id iterations="5" memory="262144" length="64" saltlength="32">
+
#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#-#
# Auditorium module: Adds channel mode +u which makes everyone else
# except you in the channel invisible, used for large meetings etc.
--- /dev/null
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * Copyright (C) 2020 Daniel Vassdal <shutter@canternet.org>
+ *
+ * This file is part of InspIRCd. InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/// $CompilerFlags: find_compiler_flags("libargon2" "")
+
+/// $LinkerFlags: find_linker_flags("libargon2" "-llibargon2")
+
+/// $PackageInfo: require_system("arch") argon2 pkgconf
+/// $PackageInfo: require_system("darwin") argon2 pkg-config
+/// $PackageInfo: require_system("debian" "9.0") libargon2-0 pkg-config
+/// $PackageInfo: require_system("ubuntu" "18.04") libargon2-0-dev pkg-config
+
+
+#include "inspircd.h"
+#include "modules/hash.h"
+
+#ifdef __GNUC__
+# pragma GCC diagnostic push
+#endif
+
+// Fix warnings about the use of `long long` on C++03
+#if defined __clang__
+# pragma clang diagnostic ignored "-Wc++11-long-long"
+#elif defined __GNUC__
+# pragma GCC diagnostic ignored "-Wlong-long"
+#endif
+
+#include <argon2.h>
+
+class ProviderConfig
+{
+ private:
+ static Argon2_version SanitizeArgon2Version(unsigned long version)
+ {
+ // Note, 10 is 0x10, and 13 is 0x13. Refering to it as
+ // dec 10 or 13 in the config file, for the name to
+ // match better.
+ switch (version)
+ {
+ case 10:
+ return ARGON2_VERSION_10;
+ case 13:
+ return ARGON2_VERSION_13;
+ }
+
+ ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "Unknown Argon2 version (%lu) specified; assuming 13",
+ version);
+ return ARGON2_VERSION_13;
+ }
+
+ public:
+ uint32_t iterations;
+ uint32_t lanes;
+ uint32_t memory;
+ uint32_t outlen;
+ uint32_t saltlen;
+ uint32_t threads;
+ Argon2_version version;
+
+ ProviderConfig()
+ {
+ // Nothing interesting happens here.
+ }
+
+ ProviderConfig(const std::string& tagname, ProviderConfig* def)
+ {
+ ConfigTag* tag = ServerInstance->Config->ConfValue(tagname);
+
+ uint32_t def_iterations = def ? def->iterations : 3;
+ this->iterations = tag->getUInt("iterations", def_iterations, 1);
+
+ uint32_t def_lanes = def ? def->lanes : 1;
+ this->lanes = tag->getUInt("lanes", def_lanes, ARGON2_MIN_LANES, ARGON2_MAX_LANES);
+
+ uint32_t def_memory = def ? def->memory : 131072; // 128 MiB
+ this->memory = tag->getUInt("memory", def_memory, ARGON2_MIN_MEMORY, ARGON2_MAX_MEMORY);
+
+ uint32_t def_outlen = def ? def->outlen : 32;
+ this->outlen = tag->getUInt("length", def_outlen, ARGON2_MIN_OUTLEN, ARGON2_MAX_OUTLEN);
+
+ uint32_t def_saltlen = def ? def->saltlen : 16;
+ this->saltlen = tag->getUInt("saltlength", def_saltlen, ARGON2_MIN_SALT_LENGTH, ARGON2_MAX_SALT_LENGTH);
+
+ uint32_t def_threads = def ? def->threads : 1;
+ this->threads = tag->getUInt("threads", def_threads, ARGON2_MIN_THREADS, ARGON2_MAX_THREADS);
+
+ uint32_t def_version = def ? def->version : 13;
+ this->version = SanitizeArgon2Version(tag->getUInt("version", def_version));
+ }
+};
+
+class HashArgon2 : public HashProvider
+{
+ private:
+ const Argon2_type argon2Type;
+
+ public:
+ ProviderConfig config;
+
+ bool Compare(const std::string& input, const std::string& hash) CXX11_OVERRIDE
+ {
+ int result = argon2_verify(
+ hash.c_str(),
+ input.c_str(),
+ input.length(),
+ argon2Type);
+
+ return result == ARGON2_OK;
+ }
+
+ std::string GenerateRaw(const std::string& data) CXX11_OVERRIDE
+ {
+ const std::string salt = ServerInstance->GenRandomStr(config.saltlen, false);
+
+ size_t encodedLen = argon2_encodedlen(
+ config.iterations,
+ config.memory,
+ config.lanes,
+ config.saltlen,
+ config.outlen,
+ argon2Type);
+
+ std::vector<char> raw_data(config.outlen);
+ std::vector<char> encoded_data(encodedLen + 1);
+
+ int argonResult = argon2_hash(
+ config.iterations,
+ config.memory,
+ config.threads,
+ data.c_str(),
+ data.length(),
+ salt.c_str(),
+ salt.length(),
+ &raw_data[0],
+ raw_data.size(),
+ &encoded_data[0],
+ encoded_data.size(),
+ argon2Type,
+ config.version);
+
+ if (argonResult != ARGON2_OK)
+ throw ModuleException("Argon2 hashing failed!: " + std::string(argon2_error_message(argonResult)));
+
+ // This isn't the raw version, but we don't have
+ // the facilities to juggle around the extra state required
+ // to do anything useful with them if we don't encode them.
+ // So we pretend this is the raw version, and instead make
+ // ToPrintable return its input.
+ return std::string(&encoded_data[0], encoded_data.size());
+ }
+
+ std::string ToPrintable(const std::string& raw) CXX11_OVERRIDE
+ {
+ return raw;
+ }
+
+ HashArgon2(Module* parent, const std::string& hashName, Argon2_type type)
+ : HashProvider(parent, hashName)
+ , argon2Type(type)
+
+ {
+ }
+};
+
+class ModuleArgon2 : public Module
+{
+ private:
+ HashArgon2 argon2i;
+ HashArgon2 argon2d;
+ HashArgon2 argon2id;
+
+ public:
+ ModuleArgon2()
+ : argon2i(this, "argon2i", Argon2_i)
+ , argon2d(this, "argon2d", Argon2_d)
+ , argon2id(this, "argon2id", Argon2_id)
+ {
+ }
+
+ Version GetVersion() CXX11_OVERRIDE
+ {
+ return Version("Allows other modules to generate Argon2 hashes.", VF_VENDOR);
+ }
+
+ void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
+ {
+ ProviderConfig defaultConfig("argon2", NULL);
+ argon2i.config = ProviderConfig("argon2i", &defaultConfig);
+ argon2d.config = ProviderConfig("argon2d", &defaultConfig);
+ argon2id.config = ProviderConfig("argon2id", &defaultConfig);
+ }
+};
+
+MODULE_INIT(ModuleArgon2)
+
+// This needs to be down here because of warnings from macros.
+#ifdef __GNUC__
+# pragma GCC diagnostic pop
+#endif
projects / user / henk / code / inspircd.git / commitdiff