*/
ServerConfig();
+ ~ServerConfig();
+
/** Get server ID as string with required leading zeroes
*/
- const std::string& GetSID();
-
- /** Update the 005 vector
- */
- void Update005();
-
- /** Send the 005 numerics (ISUPPORT) to a user
- */
- void Send005(User* user);
+ const std::string& GetSID() const { return sid; }
/** Read the entire configuration into memory
* and initialize this class. All other methods
ModeHandler* mode = ServerInstance->Modes->FindMode(*n, MODETYPE_CHANNEL);
if (mode)
{
+ if (mode->IsPrefixMode())
+ continue;
+
if (mode->GetNumParams(true))
+ {
list.GetToken(parameter);
+ // If the parameter begins with a ':' then it's invalid
+ if (parameter.c_str()[0] == ':')
+ continue;
+ }
else
parameter.clear();
OperMaxChans = 30;
c_ipv4_range = 32;
c_ipv6_range = 128;
+
+ std::vector<KeyVal>* items;
+ EmptyTag = ConfigTag::create("empty", "<auto>", 0, items);
+ }
+
+ ServerConfig::~ServerConfig()
+ {
+ delete EmptyTag;
}
-void ServerConfig::Update005()
-{
- std::stringstream out(data005);
- std::vector<std::string> data;
- std::string token;
- while (out >> token)
- data.push_back(token);
- sort(data.begin(), data.end());
-
- std::string line5;
- isupport.clear();
- for(unsigned int i=0; i < data.size(); i++)
- {
- token = data[i];
- line5 = line5 + token + " ";
- if (i % 13 == 12)
- {
- line5.append(":are supported by this server");
- isupport.push_back(line5);
- line5.clear();
- }
- }
- if (!line5.empty())
- {
- line5.append(":are supported by this server");
- isupport.push_back(line5);
- }
-}
-
-void ServerConfig::Send005(User* user)
-{
- for (std::vector<std::string>::iterator line = ServerInstance->Config->isupport.begin(); line != ServerInstance->Config->isupport.end(); line++)
- user->WriteNumeric(RPL_ISUPPORT, "%s %s", user->nick.c_str(), line->c_str());
-}
-
-template<typename T, typename V>
-static void range(T& value, V min, V max, V def, const char* msg)
-{
- if (value >= (T)min && value <= (T)max)
- return;
- ServerInstance->Logs->Log("CONFIG", DEFAULT,
- "WARNING: %s value of %ld is not between %ld and %ld; set to %ld.",
- msg, (long)value, (long)min, (long)max, (long)def);
- value = def;
-}
-
-
-static void ValidIP(const std::string& ip, const std::string& key)
-{
- irc::sockets::sockaddrs dummy;
- if (!irc::sockets::aptosa(ip, 0, dummy))
- throw CoreException("The value of "+key+" is not an IP address");
-}
-
static void ValidHost(const std::string& p, const std::string& msg)
{
int num_dots = 0;
--- /dev/null
- ConfigTag* tag = NULL;
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
+ *
+ * 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/>.
+ */
+
+
+#include "inspircd.h"
+#include "core_info.h"
+
+CommandMotd::CommandMotd(Module* parent)
+ : Command(parent, "MOTD", 0, 1)
+{
+ syntax = "[<servername>]";
+}
+
+/** Handle /MOTD
+ */
+CmdResult CommandMotd::Handle (const std::vector<std::string>& parameters, User *user)
+{
+ if (parameters.size() > 0 && parameters[0] != ServerInstance->Config->ServerName)
+ return CMD_SUCCESS;
+
++ ConfigTag* tag = ServerInstance->Config->EmptyTag;
+ LocalUser* localuser = IS_LOCAL(user);
+ if (localuser)
+ tag = localuser->GetClass()->config;
+ std::string motd_name = tag->getString("motd", "motd");
+ ConfigFileCache::iterator motd = ServerInstance->Config->Files.find(motd_name);
+ if (motd == ServerInstance->Config->Files.end())
+ {
+ user->SendText(":%s %03d %s :Message of the day file is missing.",
+ ServerInstance->Config->ServerName.c_str(), ERR_NOMOTD, user->nick.c_str());
+ return CMD_SUCCESS;
+ }
+
+ user->SendText(":%s %03d %s :%s message of the day", ServerInstance->Config->ServerName.c_str(),
+ RPL_MOTDSTART, user->nick.c_str(), ServerInstance->Config->ServerName.c_str());
+
+ for (file_cache::iterator i = motd->second.begin(); i != motd->second.end(); i++)
+ user->SendText(":%s %03d %s :- %s", ServerInstance->Config->ServerName.c_str(), RPL_MOTD, user->nick.c_str(), i->c_str());
+
+ user->SendText(":%s %03d %s :End of message of the day.", ServerInstance->Config->ServerName.c_str(), RPL_ENDOFMOTD, user->nick.c_str());
+
+ return CMD_SUCCESS;
+}
+
+RouteDescriptor CommandMotd::GetRouting(User* user, const std::vector<std::string>& parameters)
+{
+ if (parameters.size() > 0)
+ return ROUTE_UNICAST(parameters[0]);
+ return ROUTE_LOCALONLY;
+}
--- /dev/null
- idle = abs((long)((localuser->idle_lastmsg)-ServerInstance->Time()));
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
+ * Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
+ *
+ * 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/>.
+ */
+
+
+#include "inspircd.h"
+
+/** Handle /WHOIS.
+ */
+class CommandWhois : public SplitCommand
+{
+ ChanModeReference secretmode;
+ ChanModeReference privatemode;
+ UserModeReference snomaskmode;
+
+ void SplitChanList(User* source, User* dest, const std::string& cl);
+ void DoWhois(User* user, User* dest, unsigned long signon, unsigned long idle);
+ std::string ChannelList(User* source, User* dest, bool spy);
+
+ public:
+ /** Constructor for whois.
+ */
+ CommandWhois(Module* parent)
+ : SplitCommand(parent, "WHOIS", 1)
+ , secretmode(parent, "secret")
+ , privatemode(parent, "private")
+ , snomaskmode(parent, "snomask")
+ {
+ Penalty = 2;
+ syntax = "<nick>{,<nick>}";
+ }
+
+ /** Handle command.
+ * @param parameters The parameters to the command
+ * @param user The user issuing the command
+ * @return A value from CmdResult to indicate command success or failure.
+ */
+ CmdResult HandleLocal(const std::vector<std::string>& parameters, LocalUser* user);
+ CmdResult HandleRemote(const std::vector<std::string>& parameters, RemoteUser* target);
+};
+
+std::string CommandWhois::ChannelList(User* source, User* dest, bool spy)
+{
+ std::string list;
+
+ for (User::ChanList::iterator i = dest->chans.begin(); i != dest->chans.end(); i++)
+ {
+ Membership* memb = *i;
+ Channel* c = memb->chan;
+ /* If the target is the sender, neither +p nor +s is set, or
+ * the channel contains the user, it is not a spy channel
+ */
+ if (spy != (source == dest || !(c->IsModeSet(privatemode) || c->IsModeSet(secretmode)) || c->HasUser(source)))
+ {
+ char prefix = memb->GetPrefixChar();
+ if (prefix)
+ list.push_back(prefix);
+ list.append(c->name).push_back(' ');
+ }
+ }
+
+ return list;
+}
+
+void CommandWhois::SplitChanList(User* source, User* dest, const std::string& cl)
+{
+ std::string line;
+ std::ostringstream prefix;
+ std::string::size_type start, pos;
+
+ prefix << dest->nick << " :";
+ line = prefix.str();
+ int namelen = ServerInstance->Config->ServerName.length() + 6;
+
+ for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
+ {
+ if (line.length() + namelen + pos - start > 510)
+ {
+ ServerInstance->SendWhoisLine(source, dest, 319, line);
+ line = prefix.str();
+ }
+
+ line.append(cl.substr(start, pos - start + 1));
+ }
+
+ if (line.length() != prefix.str().length())
+ {
+ ServerInstance->SendWhoisLine(source, dest, 319, line);
+ }
+}
+
+void CommandWhois::DoWhois(User* user, User* dest, unsigned long signon, unsigned long idle)
+{
+ ServerInstance->SendWhoisLine(user, dest, 311, "%s %s %s * :%s", dest->nick.c_str(), dest->ident.c_str(), dest->dhost.c_str(), dest->fullname.c_str());
+ if (user == dest || user->HasPrivPermission("users/auspex"))
+ {
+ ServerInstance->SendWhoisLine(user, dest, 378, "%s :is connecting from %s@%s %s", dest->nick.c_str(), dest->ident.c_str(), dest->host.c_str(), dest->GetIPString().c_str());
+ }
+
+ std::string cl = ChannelList(user, dest, false);
+ const ServerConfig::OperSpyWhoisState state = user->HasPrivPermission("users/auspex") ? ServerInstance->Config->OperSpyWhois : ServerConfig::SPYWHOIS_NONE;
+
+ if (state == ServerConfig::SPYWHOIS_SINGLEMSG)
+ cl.append(ChannelList(user, dest, true));
+
+ SplitChanList(user, dest, cl);
+
+ if (state == ServerConfig::SPYWHOIS_SPLITMSG)
+ {
+ std::string scl = ChannelList(user, dest, true);
+ if (scl.length())
+ {
+ ServerInstance->SendWhoisLine(user, dest, 336, "%s :is on private/secret channels:", dest->nick.c_str());
+ SplitChanList(user, dest, scl);
+ }
+ }
+ if (user != dest && !ServerInstance->Config->HideWhoisServer.empty() && !user->HasPrivPermission("servers/auspex"))
+ {
+ ServerInstance->SendWhoisLine(user, dest, 312, "%s %s :%s", dest->nick.c_str(), ServerInstance->Config->HideWhoisServer.c_str(), ServerInstance->Config->Network.c_str());
+ }
+ else
+ {
+ ServerInstance->SendWhoisLine(user, dest, 312, "%s %s :%s", dest->nick.c_str(), dest->server->GetName().c_str(), dest->server->GetDesc().c_str());
+ }
+
+ if (dest->IsAway())
+ {
+ ServerInstance->SendWhoisLine(user, dest, 301, "%s :%s", dest->nick.c_str(), dest->awaymsg.c_str());
+ }
+
+ if (dest->IsOper())
+ {
+ if (ServerInstance->Config->GenericOper)
+ ServerInstance->SendWhoisLine(user, dest, 313, "%s :is an IRC operator", dest->nick.c_str());
+ else
+ ServerInstance->SendWhoisLine(user, dest, 313, "%s :is %s %s on %s", dest->nick.c_str(), (strchr("AEIOUaeiou",dest->oper->name[0]) ? "an" : "a"),dest->oper->name.c_str(), ServerInstance->Config->Network.c_str());
+ }
+
+ if (user == dest || user->HasPrivPermission("users/auspex"))
+ {
+ if (dest->IsModeSet(snomaskmode))
+ {
+ ServerInstance->SendWhoisLine(user, dest, 379, "%s :is using modes +%s %s", dest->nick.c_str(), dest->FormatModes(), snomaskmode->GetUserParameter(dest).c_str());
+ }
+ else
+ {
+ ServerInstance->SendWhoisLine(user, dest, 379, "%s :is using modes +%s", dest->nick.c_str(), dest->FormatModes());
+ }
+ }
+
+ FOREACH_MOD(OnWhois, (user,dest));
+
+ /*
+ * We only send these if we've been provided them. That is, if hidewhois is turned off, and user is local, or
+ * if remote whois is queried, too. This is to keep the user hidden, and also since you can't reliably tell remote time. -- w00t
+ */
+ if ((idle) || (signon))
+ {
+ ServerInstance->SendWhoisLine(user, dest, 317, "%s %lu %lu :seconds idle, signon time", dest->nick.c_str(), idle, signon);
+ }
+
+ ServerInstance->SendWhoisLine(user, dest, 318, "%s :End of /WHOIS list.", dest->nick.c_str());
+}
+
+CmdResult CommandWhois::HandleRemote(const std::vector<std::string>& parameters, RemoteUser* target)
+{
+ if (parameters.size() < 2)
+ return CMD_FAILURE;
+
+ User* user = ServerInstance->FindUUID(parameters[0]);
+ if (!user)
+ return CMD_FAILURE;
+
+ unsigned long idle = ConvToInt(parameters.back());
+ DoWhois(user, target, target->signon, idle);
+
+ return CMD_SUCCESS;
+}
+
+CmdResult CommandWhois::HandleLocal(const std::vector<std::string>& parameters, LocalUser* user)
+{
+ User *dest;
+ int userindex = 0;
+ unsigned long idle = 0, signon = 0;
+
+ if (CommandParser::LoopCall(user, this, parameters, 0))
+ return CMD_SUCCESS;
+
+ /*
+ * If 2 paramters are specified (/whois nick nick), ignore the first one like spanningtree
+ * does, and use the second one, otherwise, use the only paramter. -- djGrrr
+ */
+ if (parameters.size() > 1)
+ userindex = 1;
+
+ dest = ServerInstance->FindNickOnly(parameters[userindex]);
+
+ if ((dest) && (dest->registered == REG_ALL))
+ {
+ /*
+ * Okay. Umpteenth attempt at doing this, so let's re-comment...
+ * For local users (/w localuser), we show idletime if hidewhois is disabled
+ * For local users (/w localuser localuser), we always show idletime, hence parameters.size() > 1 check.
+ * For remote users (/w remoteuser), we do NOT show idletime
+ * For remote users (/w remoteuser remoteuser), spanningtree will handle calling do_whois, so we can ignore this case.
+ * Thanks to djGrrr for not being impatient while I have a crap day coding. :p -- w00t
+ */
+ LocalUser* localuser = IS_LOCAL(dest);
+ if (localuser && (ServerInstance->Config->HideWhoisServer.empty() || parameters.size() > 1))
+ {
++ idle = labs((long)((localuser->idle_lastmsg)-ServerInstance->Time()));
+ signon = dest->signon;
+ }
+
+ DoWhois(user,dest,signon,idle);
+ }
+ else
+ {
+ /* no such nick/channel */
+ user->WriteNumeric(ERR_NOSUCHNICK, "%s :No such nick/channel", !parameters[userindex].empty() ? parameters[userindex].c_str() : "*");
+ user->WriteNumeric(RPL_ENDOFWHOIS, "%s :End of /WHOIS list.", !parameters[userindex].empty() ? parameters[userindex].c_str() : "*");
+ return CMD_FAILURE;
+ }
+
+ return CMD_SUCCESS;
+}
+
+COMMAND_INIT(CommandWhois)
--- /dev/null
- if (chanlimits.empty())
- chanlimits.push_back(ListLimit("*", 64));
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.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/>.
+ */
+
+#include "inspircd.h"
+#include "listmode.h"
+
+ListModeBase::ListModeBase(Module* Creator, const std::string& Name, char modechar, const std::string &eolstr, unsigned int lnum, unsigned int eolnum, bool autotidy, const std::string &ctag)
+ : ModeHandler(Creator, Name, modechar, PARAM_ALWAYS, MODETYPE_CHANNEL, MC_LIST),
+ listnumeric(lnum), endoflistnumeric(eolnum), endofliststring(eolstr), tidy(autotidy),
+ configtag(ctag), extItem("listbase_mode_" + name + "_list", Creator)
+{
+ list = true;
+}
+
+void ListModeBase::DisplayList(User* user, Channel* channel)
+{
+ ChanData* cd = extItem.get(channel);
+ if (cd)
+ {
+ for (ModeList::reverse_iterator it = cd->list.rbegin(); it != cd->list.rend(); ++it)
+ {
+ user->WriteNumeric(listnumeric, "%s %s %s %lu", channel->name.c_str(), it->mask.c_str(), (!it->setter.empty() ? it->setter.c_str() : ServerInstance->Config->ServerName.c_str()), (unsigned long) it->time);
+ }
+ }
+ user->WriteNumeric(endoflistnumeric, "%s :%s", channel->name.c_str(), endofliststring.c_str());
+}
+
+void ListModeBase::DisplayEmptyList(User* user, Channel* channel)
+{
+ user->WriteNumeric(endoflistnumeric, "%s :%s", channel->name.c_str(), endofliststring.c_str());
+}
+
+void ListModeBase::RemoveMode(Channel* channel, Modes::ChangeList& changelist)
+{
+ ChanData* cd = extItem.get(channel);
+ if (cd)
+ {
+ for (ModeList::iterator it = cd->list.begin(); it != cd->list.end(); it++)
+ {
+ changelist.push_remove(this, it->mask);
+ }
+ }
+}
+
+void ListModeBase::DoRehash()
+{
+ ConfigTagList tags = ServerInstance->Config->ConfTags(configtag);
+
+ limitlist oldlimits = chanlimits;
+ chanlimits.clear();
+
+ for (ConfigIter i = tags.first; i != tags.second; i++)
+ {
+ // For each <banlist> tag
+ ConfigTag* c = i->second;
+ ListLimit limit(c->getString("chan"), c->getInt("limit"));
+
+ if (limit.mask.size() && limit.limit > 0)
+ chanlimits.push_back(limit);
+ }
+
++ // Add the default entry. This is inserted last so if the user specifies a
++ // wildcard record in the config it will take precedence over this entry.
++ chanlimits.push_back(ListLimit("*", 64));
+
+ // Most of the time our settings are unchanged, so we can avoid iterating the chanlist
+ if (oldlimits == chanlimits)
+ return;
+
+ const chan_hash& chans = ServerInstance->GetChans();
+ for (chan_hash::const_iterator i = chans.begin(); i != chans.end(); ++i)
+ {
+ ChanData* cd = extItem.get(i->second);
+ if (cd)
+ cd->maxitems = -1;
+ }
+}
+
+unsigned int ListModeBase::FindLimit(const std::string& channame)
+{
+ for (limitlist::iterator it = chanlimits.begin(); it != chanlimits.end(); ++it)
+ {
+ if (InspIRCd::Match(channame, it->mask))
+ {
+ // We have a pattern matching the channel
+ return it->limit;
+ }
+ }
+ return 64;
+}
+
+unsigned int ListModeBase::GetLimitInternal(const std::string& channame, ChanData* cd)
+{
+ if (cd->maxitems < 0)
+ cd->maxitems = FindLimit(channame);
+ return cd->maxitems;
+}
+
+unsigned int ListModeBase::GetLimit(Channel* channel)
+{
+ ChanData* cd = extItem.get(channel);
+ if (!cd) // just find the limit
+ return FindLimit(channel->name);
+
+ return GetLimitInternal(channel->name, cd);
+}
+
+ModeAction ListModeBase::OnModeChange(User* source, User*, Channel* channel, std::string ¶meter, bool adding)
+{
+ // Try and grab the list
+ ChanData* cd = extItem.get(channel);
+
+ if (adding)
+ {
+ if (tidy)
+ ModeParser::CleanMask(parameter);
+
+ if (parameter.length() > 250)
+ return MODEACTION_DENY;
+
+ // If there was no list
+ if (!cd)
+ {
+ // Make one
+ cd = new ChanData;
+ extItem.set(channel, cd);
+ }
+
+ // Check if the item already exists in the list
+ for (ModeList::iterator it = cd->list.begin(); it != cd->list.end(); it++)
+ {
+ if (parameter == it->mask)
+ {
+ /* Give a subclass a chance to error about this */
+ TellAlreadyOnList(source, channel, parameter);
+
+ // it does, deny the change
+ return MODEACTION_DENY;
+ }
+ }
+
+ if ((IS_LOCAL(source)) && (cd->list.size() >= GetLimitInternal(channel->name, cd)))
+ {
+ /* List is full, give subclass a chance to send a custom message */
+ TellListTooLong(source, channel, parameter);
+ return MODEACTION_DENY;
+ }
+
+ /* Ok, it *could* be allowed, now give someone subclassing us
+ * a chance to validate the parameter.
+ * The param is passed by reference, so they can both modify it
+ * and tell us if we allow it or not.
+ *
+ * eg, the subclass could:
+ * 1) allow
+ * 2) 'fix' parameter and then allow
+ * 3) deny
+ */
+ if (ValidateParam(source, channel, parameter))
+ {
+ // And now add the mask onto the list...
+ cd->list.push_back(ListItem(parameter, source->nick, ServerInstance->Time()));
+ return MODEACTION_ALLOW;
+ }
+ else
+ {
+ /* If they deny it they have the job of giving an error message */
+ return MODEACTION_DENY;
+ }
+ }
+ else
+ {
+ // We're taking the mode off
+ if (cd)
+ {
+ for (ModeList::iterator it = cd->list.begin(); it != cd->list.end(); ++it)
+ {
+ if (parameter == it->mask)
+ {
+ cd->list.erase(it);
+ return MODEACTION_ALLOW;
+ }
+ }
+ }
+
+ /* Tried to remove something that wasn't set */
+ TellNotSet(source, channel, parameter);
+ return MODEACTION_DENY;
+ }
+}
+
+bool ListModeBase::ValidateParam(User*, Channel*, std::string&)
+{
+ return true;
+}
+
+void ListModeBase::TellListTooLong(User* source, Channel* channel, std::string& parameter)
+{
+ source->WriteNumeric(ERR_BANLISTFULL, "%s %s :Channel ban list is full", channel->name.c_str(), parameter.c_str());
+}
+
+void ListModeBase::TellAlreadyOnList(User*, Channel*, std::string&)
+{
+}
+
+void ListModeBase::TellNotSet(User*, Channel*, std::string&)
+{
+}
}
};
-/** Represents an SSL user's extra data
- */
-class issl_session
+namespace GnuTLS
{
-public:
- StreamSocket* socket;
- gnutls_session_t sess;
- issl_status status;
- reference<ssl_cert> cert;
- reference<SSLConfig> config;
-
- issl_session() : socket(NULL), sess(NULL), status(ISSL_NONE) {}
-};
+ class Init
+ {
+ public:
+ Init() { gnutls_global_init(); }
+ ~Init() { gnutls_global_deinit(); }
+ };
-static SSLConfig* GetSessionConfig(gnutls_session_t sess)
-{
- issl_session* session = reinterpret_cast<issl_session*>(gnutls_transport_get_ptr(sess));
- return session->config;
-}
+ class Exception : public ModuleException
+ {
+ public:
+ Exception(const std::string& reason)
+ : ModuleException(reason) { }
+ };
-class CommandStartTLS : public SplitCommand
-{
- public:
- bool enabled;
- CommandStartTLS (Module* mod) : SplitCommand(mod, "STARTTLS")
+ void ThrowOnError(int errcode, const char* msg)
{
- enabled = true;
- works_before_reg = true;
+ if (errcode < 0)
+ {
+ std::string reason = msg;
+ reason.append(" :").append(gnutls_strerror(errcode));
+ throw Exception(reason);
+ }
}
- CmdResult HandleLocal(const std::vector<std::string> ¶meters, LocalUser *user)
+ /** Used to create a gnutls_datum_t* from a std::string
+ */
+ class Datum
+ {
+ gnutls_datum_t datum;
+
+ public:
+ Datum(const std::string& dat)
+ {
+ datum.data = (unsigned char*)dat.data();
+ datum.size = static_cast<unsigned int>(dat.length());
+ }
+
+ const gnutls_datum_t* get() const { return &datum; }
+ };
+
+ class Hash
{
- if (!enabled)
+ gnutls_digest_algorithm_t hash;
+
+ public:
+ // Nothing to deallocate, constructor may throw freely
+ Hash(const std::string& hashname)
{
- user->WriteNumeric(691, "%s :STARTTLS is not enabled", user->nick.c_str());
- return CMD_FAILURE;
+ // As older versions of gnutls can't do this, let's disable it where needed.
+#ifdef GNUTLS_HAS_MAC_GET_ID
+ // As gnutls_digest_algorithm_t and gnutls_mac_algorithm_t are mapped 1:1, we can do this
+ // There is no gnutls_dig_get_id() at the moment, but it may come later
+ hash = (gnutls_digest_algorithm_t)gnutls_mac_get_id(hashname.c_str());
+ if (hash == GNUTLS_DIG_UNKNOWN)
+ throw Exception("Unknown hash type " + hashname);
+
+ // Check if the user is giving us something that is a valid MAC but not digest
+ gnutls_hash_hd_t is_digest;
+ if (gnutls_hash_init(&is_digest, hash) < 0)
+ throw Exception("Unknown hash type " + hashname);
+ gnutls_hash_deinit(is_digest, NULL);
+#else
+ if (hashname == "md5")
+ hash = GNUTLS_DIG_MD5;
+ else if (hashname == "sha1")
+ hash = GNUTLS_DIG_SHA1;
++#ifdef INSPIRCD_GNUTLS_ENABLE_SHA256_FINGERPRINT
++ else if (hashname == "sha256")
++ hash = GNUTLS_DIG_SHA256;
++#endif
+ else
+ throw Exception("Unknown hash type " + hashname);
+#endif
}
- if (user->registered == REG_ALL)
+ gnutls_digest_algorithm_t get() const { return hash; }
+ };
+
+ class DHParams
+ {
+ gnutls_dh_params_t dh_params;
+
+ DHParams()
{
- user->WriteNumeric(691, "%s :STARTTLS is not permitted after client registration is complete", user->nick.c_str());
+ ThrowOnError(gnutls_dh_params_init(&dh_params), "gnutls_dh_params_init() failed");
}
- else
+
+ public:
+ /** Import */
+ static std::auto_ptr<DHParams> Import(const std::string& dhstr)
+ {
+ std::auto_ptr<DHParams> dh(new DHParams);
+ int ret = gnutls_dh_params_import_pkcs3(dh->dh_params, Datum(dhstr).get(), GNUTLS_X509_FMT_PEM);
+ ThrowOnError(ret, "Unable to import DH params");
+ return dh;
+ }
+
+ /** Generate */
+ static std::auto_ptr<DHParams> Generate(unsigned int bits)
+ {
+ std::auto_ptr<DHParams> dh(new DHParams);
+ ThrowOnError(gnutls_dh_params_generate2(dh->dh_params, bits), "Unable to generate DH params");
+ return dh;
+ }
+
+ ~DHParams()
{
- if (!user->eh.GetIOHook())
+ gnutls_dh_params_deinit(dh_params);
+ }
+
+ const gnutls_dh_params_t& get() const { return dh_params; }
+ };
+
+ class X509Key
+ {
+ /** Ensure that the key is deinited in case the constructor of X509Key throws
+ */
+ class RAIIKey
+ {
+ public:
+ gnutls_x509_privkey_t key;
+
+ RAIIKey()
{
- user->WriteNumeric(670, "%s :STARTTLS successful, go ahead with TLS handshake", user->nick.c_str());
- /* We need to flush the write buffer prior to adding the IOHook,
- * otherwise we'll be sending this line inside the SSL session - which
- * won't start its handshake until the client gets this line. Currently,
- * we assume the write will not block here; this is usually safe, as
- * STARTTLS is sent very early on in the registration phase, where the
- * user hasn't built up much sendq. Handling a blocked write here would
- * be very annoying.
- */
- user->eh.DoWrite();
- user->eh.AddIOHook(creator);
- creator->OnStreamSocketAccept(&user->eh, NULL, NULL);
+ ThrowOnError(gnutls_x509_privkey_init(&key), "gnutls_x509_privkey_init() failed");
}
- else
- user->WriteNumeric(691, "%s :STARTTLS failure", user->nick.c_str());
+
+ ~RAIIKey()
+ {
+ gnutls_x509_privkey_deinit(key);
+ }
+ } key;
+
+ public:
+ /** Import */
+ X509Key(const std::string& keystr)
+ {
+ int ret = gnutls_x509_privkey_import(key.key, Datum(keystr).get(), GNUTLS_X509_FMT_PEM);
+ ThrowOnError(ret, "Unable to import private key");
}
- return CMD_FAILURE;
- }
-};
+ gnutls_x509_privkey_t& get() { return key.key; }
+ };
-class ModuleSSLGnuTLS : public Module
-{
- issl_session* sessions;
+ class X509CertList
+ {
+ std::vector<gnutls_x509_crt_t> certs;
+
+ public:
+ /** Import */
+ X509CertList(const std::string& certstr)
+ {
+ unsigned int certcount = 3;
+ certs.resize(certcount);
+ Datum datum(certstr);
- gnutls_digest_algorithm_t hash;
+ int ret = gnutls_x509_crt_list_import(raw(), &certcount, datum.get(), GNUTLS_X509_FMT_PEM, GNUTLS_X509_CRT_LIST_IMPORT_FAIL_IF_EXCEED);
+ if (ret == GNUTLS_E_SHORT_MEMORY_BUFFER)
+ {
+ // the buffer wasn't big enough to hold all certs but gnutls changed certcount to the number of available certs,
+ // try again with a bigger buffer
+ certs.resize(certcount);
+ ret = gnutls_x509_crt_list_import(raw(), &certcount, datum.get(), GNUTLS_X509_FMT_PEM, GNUTLS_X509_CRT_LIST_IMPORT_FAIL_IF_EXCEED);
+ }
- std::string sslports;
- int dh_bits;
+ ThrowOnError(ret, "Unable to load certificates");
- RandGen randhandler;
- CommandStartTLS starttls;
+ // Resize the vector to the actual number of certs because we rely on its size being correct
+ // when deallocating the certs
+ certs.resize(certcount);
+ }
- GenericCap capHandler;
- ServiceProvider iohook;
+ ~X509CertList()
+ {
+ for (std::vector<gnutls_x509_crt_t>::iterator i = certs.begin(); i != certs.end(); ++i)
+ gnutls_x509_crt_deinit(*i);
+ }
- inline static const char* UnknownIfNULL(const char* str)
- {
- return str ? str : "UNKNOWN";
- }
+ gnutls_x509_crt_t* raw() { return &certs[0]; }
+ unsigned int size() const { return certs.size(); }
+ };
- static ssize_t gnutls_pull_wrapper(gnutls_transport_ptr_t session_wrap, void* buffer, size_t size)
+ class X509CRL : public refcountbase
{
- issl_session* session = reinterpret_cast<issl_session*>(session_wrap);
- if (session->socket->GetEventMask() & FD_READ_WILL_BLOCK)
+ class RAIICRL
{
-#ifdef _WIN32
- gnutls_transport_set_errno(session->sess, EAGAIN);
-#else
- errno = EAGAIN;
-#endif
- return -1;
- }
+ public:
+ gnutls_x509_crl_t crl;
- int rv = ServerInstance->SE->Recv(session->socket, reinterpret_cast<char *>(buffer), size, 0);
+ RAIICRL()
+ {
+ ThrowOnError(gnutls_x509_crl_init(&crl), "gnutls_x509_crl_init() failed");
+ }
-#ifdef _WIN32
- if (rv < 0)
+ ~RAIICRL()
+ {
+ gnutls_x509_crl_deinit(crl);
+ }
+ } crl;
+
+ public:
+ /** Import */
+ X509CRL(const std::string& crlstr)
{
- /* Windows doesn't use errno, but gnutls does, so check SocketEngine::IgnoreError()
- * and then set errno appropriately.
- * The gnutls library may also have a different errno variable than us, see
- * gnutls_transport_set_errno(3).
- */
- gnutls_transport_set_errno(session->sess, SocketEngine::IgnoreError() ? EAGAIN : errno);
+ int ret = gnutls_x509_crl_import(get(), Datum(crlstr).get(), GNUTLS_X509_FMT_PEM);
+ ThrowOnError(ret, "Unable to load certificate revocation list");
}
-#endif
- if (rv < (int)size)
- ServerInstance->SE->ChangeEventMask(session->socket, FD_READ_WILL_BLOCK);
- return rv;
- }
+ gnutls_x509_crl_t& get() { return crl.crl; }
+ };
- static ssize_t gnutls_push_wrapper(gnutls_transport_ptr_t session_wrap, const void* buffer, size_t size)
+#ifdef GNUTLS_NEW_PRIO_API
+ class Priority
{
- issl_session* session = reinterpret_cast<issl_session*>(session_wrap);
- if (session->socket->GetEventMask() & FD_WRITE_WILL_BLOCK)
+ gnutls_priority_t priority;
+
+ public:
+ Priority(const std::string& priorities)
{
-#ifdef _WIN32
- gnutls_transport_set_errno(session->sess, EAGAIN);
-#else
- errno = EAGAIN;
-#endif
- return -1;
+ // Try to set the priorities for ciphers, kex methods etc. to the user supplied string
+ // If the user did not supply anything then the string is already set to "NORMAL"
+ const char* priocstr = priorities.c_str();
+ const char* prioerror;
+
+ int ret = gnutls_priority_init(&priority, priocstr, &prioerror);
+ if (ret < 0)
+ {
+ // gnutls did not understand the user supplied string
+ throw Exception("Unable to initialize priorities to \"" + priorities + "\": " + gnutls_strerror(ret) + " Syntax error at position " + ConvToStr((unsigned int) (prioerror - priocstr)));
+ }
}
- int rv = ServerInstance->SE->Send(session->socket, reinterpret_cast<const char *>(buffer), size, 0);
+ ~Priority()
+ {
+ gnutls_priority_deinit(priority);
+ }
-#ifdef _WIN32
- if (rv < 0)
+ void SetupSession(gnutls_session_t sess)
{
- /* Windows doesn't use errno, but gnutls does, so check SocketEngine::IgnoreError()
- * and then set errno appropriately.
- * The gnutls library may also have a different errno variable than us, see
- * gnutls_transport_set_errno(3).
- */
- gnutls_transport_set_errno(session->sess, SocketEngine::IgnoreError() ? EAGAIN : errno);
+ gnutls_priority_set(sess, priority);
+ }
+ };
+#else
+ /** Dummy class, used when gnutls_priority_set() is not available
+ */
+ class Priority
+ {
+ public:
+ Priority(const std::string& priorities)
+ {
+ if (priorities != "NORMAL")
+ throw Exception("You've set a non-default priority string, but GnuTLS lacks support for it");
+ }
+
+ static void SetupSession(gnutls_session_t sess)
+ {
+ // Always set the default priorities
+ gnutls_set_default_priority(sess);
}
+ };
#endif
- if (rv < (int)size)
- ServerInstance->SE->ChangeEventMask(session->socket, FD_WRITE_WILL_BLOCK);
- return rv;
- }
+ class CertCredentials
+ {
+ /** DH parameters associated with these credentials
+ */
+ std::auto_ptr<DHParams> dh;
- public:
+ protected:
+ gnutls_certificate_credentials_t cred;
- ModuleSSLGnuTLS()
- : starttls(this), capHandler(this, "tls"), iohook(this, "ssl/gnutls", SERVICE_IOHOOK)
- {
-#ifndef GNUTLS_HAS_RND
- gcry_control (GCRYCTL_INITIALIZATION_FINISHED, 0);
-#endif
+ public:
+ CertCredentials()
+ {
+ ThrowOnError(gnutls_certificate_allocate_credentials(&cred), "Cannot allocate certificate credentials");
+ }
- sessions = new issl_session[ServerInstance->SE->GetMaxFds()];
+ ~CertCredentials()
+ {
+ gnutls_certificate_free_credentials(cred);
+ }
- gnutls_global_init(); // This must be called once in the program
- }
+ /** Associates these credentials with the session
+ */
+ void SetupSession(gnutls_session_t sess)
+ {
+ gnutls_credentials_set(sess, GNUTLS_CRD_CERTIFICATE, cred);
+ }
- void init()
- {
- currconf = new SSLConfig;
- InitSSLConfig(currconf);
+ /** Set the given DH parameters to be used with these credentials
+ */
+ void SetDH(std::auto_ptr<DHParams>& DH)
+ {
+ dh = DH;
+ gnutls_certificate_set_dh_params(cred, dh->get());
+ }
+ };
- ServerInstance->GenRandom = &randhandler;
+ class X509Credentials : public CertCredentials
+ {
+ /** Private key
+ */
+ X509Key key;
- Implementation eventlist[] = { I_On005Numeric, I_OnRehash, I_OnModuleRehash, I_OnUserConnect,
- I_OnEvent, I_OnHookIO };
- ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
+ /** Certificate list, presented to the peer
+ */
+ X509CertList certs;
- ServerInstance->Modules->AddService(iohook);
- ServerInstance->Modules->AddService(starttls);
- }
+ /** Trusted CA, may be NULL
+ */
+ std::auto_ptr<X509CertList> trustedca;
- void OnRehash(User* user)
- {
- sslports.clear();
+ /** Certificate revocation list, may be NULL
+ */
+ std::auto_ptr<X509CRL> crl;
- ConfigTag* Conf = ServerInstance->Config->ConfValue("gnutls");
- starttls.enabled = Conf->getBool("starttls", true);
+ static int cert_callback(gnutls_session_t session, const gnutls_datum_t* req_ca_rdn, int nreqs, const gnutls_pk_algorithm_t* sign_algos, int sign_algos_length, cert_cb_last_param_type* st);
- if (Conf->getBool("showports", true))
+ public:
+ X509Credentials(const std::string& certstr, const std::string& keystr)
+ : key(keystr)
+ , certs(certstr)
{
- sslports = Conf->getString("advertisedports");
- if (!sslports.empty())
- return;
+ // Throwing is ok here, the destructor of Credentials is called in that case
+ int ret = gnutls_certificate_set_x509_key(cred, certs.raw(), certs.size(), key.get());
+ ThrowOnError(ret, "Unable to set cert/key pair");
- for (size_t i = 0; i < ServerInstance->ports.size(); i++)
- {
- ListenSocket* port = ServerInstance->ports[i];
- if (port->bind_tag->getString("ssl") != "gnutls")
- continue;
+#ifdef GNUTLS_NEW_CERT_CALLBACK_API
+ gnutls_certificate_set_retrieve_function(cred, cert_callback);
+#else
+ gnutls_certificate_client_set_retrieve_function(cred, cert_callback);
+#endif
+ }
- const std::string& portid = port->bind_desc;
- ServerInstance->Logs->Log("m_ssl_gnutls", DEFAULT, "m_ssl_gnutls.so: Enabling SSL for port %s", portid.c_str());
+ /** Sets the trusted CA and the certificate revocation list
+ * to use when verifying certificates
+ */
+ void SetCA(std::auto_ptr<X509CertList>& certlist, std::auto_ptr<X509CRL>& CRL)
+ {
+ // Do nothing if certlist is NULL
+ if (certlist.get())
+ {
+ int ret = gnutls_certificate_set_x509_trust(cred, certlist->raw(), certlist->size());
+ ThrowOnError(ret, "gnutls_certificate_set_x509_trust() failed");
- if (port->bind_tag->getString("type", "clients") == "clients" && port->bind_addr != "127.0.0.1")
+ if (CRL.get())
{
- /*
- * Found an SSL port for clients that is not bound to 127.0.0.1 and handled by us, display
- * the IP:port in ISUPPORT.
- *
- * We used to advertise all ports seperated by a ';' char that matched the above criteria,
- * but this resulted in too long ISUPPORT lines if there were lots of ports to be displayed.
- * To solve this by default we now only display the first IP:port found and let the user
- * configure the exact value for the 005 token, if necessary.
- */
- sslports = portid;
- break;
+ ret = gnutls_certificate_set_x509_crl(cred, &CRL->get(), 1);
+ ThrowOnError(ret, "gnutls_certificate_set_x509_crl() failed");
}
+
+ trustedca = certlist;
+ crl = CRL;
}
}
- }
+ };
- void OnModuleRehash(User* user, const std::string ¶m)
+ class Profile : public refcountbase
{
- if(param != "ssl")
- return;
+ /** Name of this profile
+ */
+ const std::string name;
- reference<SSLConfig> newconf = new SSLConfig;
- try
+ /** X509 certificate(s) and key
+ */
+ X509Credentials x509cred;
+
+ /** The minimum length in bits for the DH prime to be accepted as a client
+ */
+ unsigned int min_dh_bits;
+
+ /** Hashing algorithm to use when generating certificate fingerprints
+ */
+ Hash hash;
+
+ /** Priorities for ciphers, compression methods, etc.
+ */
+ Priority priority;
+
+ Profile(const std::string& profilename, const std::string& certstr, const std::string& keystr,
+ std::auto_ptr<DHParams>& DH, unsigned int mindh, const std::string& hashstr,
+ const std::string& priostr, std::auto_ptr<X509CertList>& CA, std::auto_ptr<X509CRL>& CRL)
+ : name(profilename)
+ , x509cred(certstr, keystr)
+ , min_dh_bits(mindh)
+ , hash(hashstr)
+ , priority(priostr)
{
- InitSSLConfig(newconf);
+ x509cred.SetDH(DH);
+ x509cred.SetCA(CA, CRL);
}
- catch (ModuleException& ex)
+
+ static std::string ReadFile(const std::string& filename)
{
- ServerInstance->Logs->Log("m_ssl_gnutls", DEFAULT, "m_ssl_gnutls: Not applying new config. %s", ex.GetReason());
- return;
+ FileReader reader(filename);
+ std::string ret = reader.GetString();
+ if (ret.empty())
+ throw Exception("Cannot read file " + filename);
+ return ret;
}
- ServerInstance->Logs->Log("m_ssl_gnutls", DEFAULT, "m_ssl_gnutls: Applying new config, old config is in use by %d connection(s)", currconf->GetReferenceCount()-1);
- currconf = newconf;
- }
+ public:
+ static reference<Profile> Create(const std::string& profilename, ConfigTag* tag)
+ {
+ std::string certstr = ReadFile(tag->getString("certfile", "cert.pem"));
+ std::string keystr = ReadFile(tag->getString("keyfile", "key.pem"));
- void InitSSLConfig(SSLConfig* config)
- {
- ServerInstance->Logs->Log("m_ssl_gnutls", DEBUG, "Initializing new SSLConfig %p", (void*)config);
+ std::auto_ptr<DHParams> dh;
+ int gendh = tag->getInt("gendh");
+ if (gendh)
+ {
+ gendh = (gendh < 1024 ? 1024 : gendh);
+ dh = DHParams::Generate(gendh);
+ }
+ else
+ dh = DHParams::Import(ReadFile(tag->getString("dhfile", "dhparams.pem")));
+
+ // Use default priority string if this tag does not specify one
+ std::string priostr = tag->getString("priority", "NORMAL");
+ unsigned int mindh = tag->getInt("mindhbits", 1024);
+ std::string hashstr = tag->getString("hash", "md5");
+
+ // Load trusted CA and revocation list, if set
+ std::auto_ptr<X509CertList> ca;
+ std::auto_ptr<X509CRL> crl;
+ std::string filename = tag->getString("cafile");
+ if (!filename.empty())
+ {
+ ca.reset(new X509CertList(ReadFile(filename)));
+
+ filename = tag->getString("crlfile");
+ if (!filename.empty())
+ crl.reset(new X509CRL(ReadFile(filename)));
+ }
- std::string keyfile;
- std::string certfile;
- std::string cafile;
- std::string crlfile;
- OnRehash(NULL);
+ return new Profile(profilename, certstr, keystr, dh, mindh, hashstr, priostr, ca, crl);
+ }
- ConfigTag* Conf = ServerInstance->Config->ConfValue("gnutls");
+ /** Set up the given session with the settings in this profile
+ */
+ void SetupSession(gnutls_session_t sess)
+ {
+ priority.SetupSession(sess);
+ x509cred.SetupSession(sess);
+ gnutls_dh_set_prime_bits(sess, min_dh_bits);
+ }
- cafile = Conf->getString("cafile", CONFIG_PATH "/ca.pem");
- crlfile = Conf->getString("crlfile", CONFIG_PATH "/crl.pem");
- certfile = Conf->getString("certfile", CONFIG_PATH "/cert.pem");
- keyfile = Conf->getString("keyfile", CONFIG_PATH "/key.pem");
- dh_bits = Conf->getInt("dhbits");
- std::string hashname = Conf->getString("hash", "md5");
+ const std::string& GetName() const { return name; }
+ X509Credentials& GetX509Credentials() { return x509cred; }
+ gnutls_digest_algorithm_t GetHash() const { return hash.get(); }
+ };
+}
- // The GnuTLS manual states that the gnutls_set_default_priority()
- // call we used previously when initializing the session is the same
- // as setting the "NORMAL" priority string.
- // Thus if the setting below is not in the config we will behave exactly
- // the same as before, when the priority setting wasn't available.
- std::string priorities = Conf->getString("priority", "NORMAL");
+class GnuTLSIOHook : public SSLIOHook
+{
+ private:
+ gnutls_session_t sess;
+ issl_status status;
+ reference<GnuTLS::Profile> profile;
- if((dh_bits != 768) && (dh_bits != 1024) && (dh_bits != 2048) && (dh_bits != 3072) && (dh_bits != 4096))
- dh_bits = 1024;
+ void InitSession(StreamSocket* user, bool me_server)
+ {
+ gnutls_init(&sess, me_server ? GNUTLS_SERVER : GNUTLS_CLIENT);
- if (hashname == "md5")
- hash = GNUTLS_DIG_MD5;
- else if (hashname == "sha1")
- hash = GNUTLS_DIG_SHA1;
-#ifdef INSPIRCD_GNUTLS_ENABLE_SHA256_FINGERPRINT
- else if (hashname == "sha256")
- hash = GNUTLS_DIG_SHA256;
-#endif
- else
- throw ModuleException("Unknown hash type " + hashname);
+ profile->SetupSession(sess);
+ gnutls_transport_set_ptr(sess, reinterpret_cast<gnutls_transport_ptr_t>(user));
+ gnutls_transport_set_push_function(sess, gnutls_push_wrapper);
+ gnutls_transport_set_pull_function(sess, gnutls_pull_wrapper);
+ if (me_server)
+ gnutls_certificate_server_set_request(sess, GNUTLS_CERT_REQUEST); // Request client certificate if any.
+ }
- int ret;
+ void CloseSession()
+ {
+ if (this->sess)
+ {
+ gnutls_bye(this->sess, GNUTLS_SHUT_WR);
+ gnutls_deinit(this->sess);
+ }
+ sess = NULL;
+ certificate = NULL;
+ status = ISSL_NONE;
+ }
- gnutls_certificate_credentials_t& x509_cred = config->x509_cred;
+ bool Handshake(StreamSocket* user)
+ {
+ int ret = gnutls_handshake(this->sess);
- ret = gnutls_certificate_allocate_credentials(&x509_cred);
if (ret < 0)
{
- // Set to NULL because we can't be sure what value is in it and we must not try to
- // deallocate it in case of an error
- x509_cred = NULL;
- throw ModuleException("Failed to allocate certificate credentials: " + std::string(gnutls_strerror(ret)));
- }
+ if(ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED)
+ {
+ // Handshake needs resuming later, read() or write() would have blocked.
- if((ret =gnutls_certificate_set_x509_trust_file(x509_cred, cafile.c_str(), GNUTLS_X509_FMT_PEM)) < 0)
- ServerInstance->Logs->Log("m_ssl_gnutls",DEBUG, "m_ssl_gnutls.so: Failed to set X.509 trust file '%s': %s", cafile.c_str(), gnutls_strerror(ret));
+ if (gnutls_record_get_direction(this->sess) == 0)
+ {
+ // gnutls_handshake() wants to read() again.
+ this->status = ISSL_HANDSHAKING_READ;
+ SocketEngine::ChangeEventMask(user, FD_WANT_POLL_READ | FD_WANT_NO_WRITE);
+ }
+ else
+ {
+ // gnutls_handshake() wants to write() again.
+ this->status = ISSL_HANDSHAKING_WRITE;
+ SocketEngine::ChangeEventMask(user, FD_WANT_NO_READ | FD_WANT_SINGLE_WRITE);
+ }
+ }
+ else
+ {
+ user->SetError("Handshake Failed - " + std::string(gnutls_strerror(ret)));
+ CloseSession();
+ this->status = ISSL_CLOSING;
+ }
+
+ return false;
+ }
+ else
+ {
+ // Change the seesion state
+ this->status = ISSL_HANDSHAKEN;
- if((ret = gnutls_certificate_set_x509_crl_file (x509_cred, crlfile.c_str(), GNUTLS_X509_FMT_PEM)) < 0)
- ServerInstance->Logs->Log("m_ssl_gnutls",DEBUG, "m_ssl_gnutls.so: Failed to set X.509 CRL file '%s': %s", crlfile.c_str(), gnutls_strerror(ret));
+ VerifyCertificate();
- FileReader reader;
+ // Finish writing, if any left
+ SocketEngine::ChangeEventMask(user, FD_WANT_POLL_READ | FD_WANT_NO_WRITE | FD_ADD_TRIAL_WRITE);
- reader.LoadFile(certfile);
- std::string cert_string = reader.Contents();
- gnutls_datum_t cert_datum = { (unsigned char*)cert_string.data(), static_cast<unsigned int>(cert_string.length()) };
+ return true;
+ }
+ }
- reader.LoadFile(keyfile);
- std::string key_string = reader.Contents();
- gnutls_datum_t key_datum = { (unsigned char*)key_string.data(), static_cast<unsigned int>(key_string.length()) };
+ void VerifyCertificate()
+ {
+ unsigned int certstatus;
+ const gnutls_datum_t* cert_list;
+ int ret;
+ unsigned int cert_list_size;
+ gnutls_x509_crt_t cert;
+ char str[512];
+ unsigned char digest[512];
+ size_t digest_size = sizeof(digest);
+ size_t name_size = sizeof(str);
+ ssl_cert* certinfo = new ssl_cert;
+ this->certificate = certinfo;
- std::vector<gnutls_x509_crt_t>& x509_certs = config->x509_certs;
+ /* This verification function uses the trusted CAs in the credentials
+ * structure. So you must have installed one or more CA certificates.
+ */
+ ret = gnutls_certificate_verify_peers2(this->sess, &certstatus);
- // If this fails, no SSL port will work. At all. So, do the smart thing - throw a ModuleException
- unsigned int certcount = 3;
- x509_certs.resize(certcount);
- ret = gnutls_x509_crt_list_import(&x509_certs[0], &certcount, &cert_datum, GNUTLS_X509_FMT_PEM, GNUTLS_X509_CRT_LIST_IMPORT_FAIL_IF_EXCEED);
- if (ret == GNUTLS_E_SHORT_MEMORY_BUFFER)
+ if (ret < 0)
{
- // the buffer wasn't big enough to hold all certs but gnutls updated certcount to the number of available certs, try again with a bigger buffer
- x509_certs.resize(certcount);
- ret = gnutls_x509_crt_list_import(&x509_certs[0], &certcount, &cert_datum, GNUTLS_X509_FMT_PEM, GNUTLS_X509_CRT_LIST_IMPORT_FAIL_IF_EXCEED);
+ certinfo->error = std::string(gnutls_strerror(ret));
+ return;
}
- if (ret <= 0)
+ certinfo->invalid = (certstatus & GNUTLS_CERT_INVALID);
+ certinfo->unknownsigner = (certstatus & GNUTLS_CERT_SIGNER_NOT_FOUND);
+ certinfo->revoked = (certstatus & GNUTLS_CERT_REVOKED);
+ certinfo->trusted = !(certstatus & GNUTLS_CERT_SIGNER_NOT_CA);
+
+ /* Up to here the process is the same for X.509 certificates and
+ * OpenPGP keys. From now on X.509 certificates are assumed. This can
+ * be easily extended to work with openpgp keys as well.
+ */
+ if (gnutls_certificate_type_get(this->sess) != GNUTLS_CRT_X509)
{
- // clear the vector so we won't call gnutls_x509_crt_deinit() on the (uninited) certs later
- x509_certs.clear();
- throw ModuleException("Unable to load GnuTLS server certificate (" + certfile + "): " + ((ret < 0) ? (std::string(gnutls_strerror(ret))) : "No certs could be read"));
+ certinfo->error = "No X509 keys sent";
+ return;
}
- x509_certs.resize(ret);
- gnutls_x509_privkey_t& x509_key = config->x509_key;
- if (gnutls_x509_privkey_init(&x509_key) < 0)
+ ret = gnutls_x509_crt_init(&cert);
+ if (ret < 0)
{
- // Make sure the destructor does not try to deallocate this, see above
- x509_key = NULL;
- throw ModuleException("Unable to initialize private key");
+ certinfo->error = gnutls_strerror(ret);
+ return;
}
- if((ret = gnutls_x509_privkey_import(x509_key, &key_datum, GNUTLS_X509_FMT_PEM)) < 0)
- throw ModuleException("Unable to load GnuTLS server private key (" + keyfile + "): " + std::string(gnutls_strerror(ret)));
-
- if((ret = gnutls_certificate_set_x509_key(x509_cred, &x509_certs[0], certcount, x509_key)) < 0)
- throw ModuleException("Unable to set GnuTLS cert/key pair: " + std::string(gnutls_strerror(ret)));
-
- #ifdef GNUTLS_NEW_PRIO_API
- // Try to set the priorities for ciphers, kex methods etc. to the user supplied string
- // If the user did not supply anything then the string is already set to "NORMAL"
- const char* priocstr = priorities.c_str();
- const char* prioerror;
-
- gnutls_priority_t& priority = config->priority;
- if ((ret = gnutls_priority_init(&priority, priocstr, &prioerror)) < 0)
+ cert_list_size = 0;
+ cert_list = gnutls_certificate_get_peers(this->sess, &cert_list_size);
+ if (cert_list == NULL)
{
- // gnutls did not understand the user supplied string, log and fall back to the default priorities
- ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: Failed to set priorities to \"%s\": %s Syntax error at position %u, falling back to default (NORMAL)", priorities.c_str(), gnutls_strerror(ret), (unsigned int) (prioerror - priocstr));
- gnutls_priority_init(&priority, "NORMAL", NULL);
+ certinfo->error = "No certificate was found";
+ goto info_done_dealloc;
}
- #else
- if (priorities != "NORMAL")
- ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: You've set <gnutls:priority> to a value other than the default, but this is only supported with GnuTLS v2.1.7 or newer. Your GnuTLS version is older than that so the option will have no effect.");
- #endif
-
- #if(GNUTLS_VERSION_MAJOR < 2 || ( GNUTLS_VERSION_MAJOR == 2 && GNUTLS_VERSION_MINOR < 12 ) )
- gnutls_certificate_client_set_retrieve_function (x509_cred, cert_callback);
- #else
- gnutls_certificate_set_retrieve_function (x509_cred, cert_callback);
- #endif
+ /* This is not a real world example, since we only check the first
+ * certificate in the given chain.
+ */
- gnutls_dh_params_t& dh_params = config->dh_params;
- ret = gnutls_dh_params_init(&dh_params);
+ ret = gnutls_x509_crt_import(cert, &cert_list[0], GNUTLS_X509_FMT_DER);
if (ret < 0)
{
- // Make sure the destructor does not try to deallocate this, see above
- dh_params = NULL;
- ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: Failed to initialise DH parameters: %s", gnutls_strerror(ret));
- return;
+ certinfo->error = gnutls_strerror(ret);
+ goto info_done_dealloc;
}
- std::string dhfile = Conf->getString("dhfile");
- if (!dhfile.empty())
+ if (gnutls_x509_crt_get_dn(cert, str, &name_size) == 0)
{
- // Try to load DH params from file
- reader.LoadFile(dhfile);
- std::string dhstring = reader.Contents();
- gnutls_datum_t dh_datum = { (unsigned char*)dhstring.data(), static_cast<unsigned int>(dhstring.length()) };
+ std::string& dn = certinfo->dn;
+ dn = str;
+ // Make sure there are no chars in the string that we consider invalid
+ if (dn.find_first_of("\r\n") != std::string::npos)
+ dn.clear();
+ }
- if ((ret = gnutls_dh_params_import_pkcs3(dh_params, &dh_datum, GNUTLS_X509_FMT_PEM)) < 0)
- {
- // File unreadable or GnuTLS was unhappy with the contents, generate the DH primes now
- ServerInstance->Logs->Log("m_ssl_gnutls", DEFAULT, "m_ssl_gnutls.so: Generating DH parameters because I failed to load them from file '%s': %s", dhfile.c_str(), gnutls_strerror(ret));
- GenerateDHParams(dh_params);
- }
+ name_size = sizeof(str);
+ if (gnutls_x509_crt_get_issuer_dn(cert, str, &name_size) == 0)
+ {
+ std::string& issuer = certinfo->issuer;
+ issuer = str;
+ if (issuer.find_first_of("\r\n") != std::string::npos)
+ issuer.clear();
+ }
+
+ if ((ret = gnutls_x509_crt_get_fingerprint(cert, profile->GetHash(), digest, &digest_size)) < 0)
+ {
+ certinfo->error = gnutls_strerror(ret);
+ }
+ else
+ {
+ certinfo->fingerprint = BinToHex(digest, digest_size);
}
- else
+
+ /* Beware here we do not check for errors.
+ */
+ if ((gnutls_x509_crt_get_expiration_time(cert) < ServerInstance->Time()) || (gnutls_x509_crt_get_activation_time(cert) > ServerInstance->Time()))
{
- GenerateDHParams(dh_params);
+ certinfo->error = "Not activated, or expired certificate";
}
- gnutls_certificate_set_dh_params(x509_cred, dh_params);
+info_done_dealloc:
+ gnutls_x509_crt_deinit(cert);
}
- void GenerateDHParams(gnutls_dh_params_t dh_params)
+ static const char* UnknownIfNULL(const char* str)
{
- // Generate Diffie Hellman parameters - for use with DHE
- // kx algorithms. These should be discarded and regenerated
- // once a day, once a week or once a month. Depending on the
- // security requirements.
-
- int ret;
-
- if((ret = gnutls_dh_params_generate2(dh_params, dh_bits)) < 0)
- ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: Failed to generate DH parameters (%d bits): %s", dh_bits, gnutls_strerror(ret));
+ return str ? str : "UNKNOWN";
}
- ~ModuleSSLGnuTLS()
+ static ssize_t gnutls_pull_wrapper(gnutls_transport_ptr_t session_wrap, void* buffer, size_t size)
{
- currconf = NULL;
-
- gnutls_global_deinit();
- delete[] sessions;
- ServerInstance->GenRandom = &ServerInstance->HandleGenRandom;
- }
+ StreamSocket* sock = reinterpret_cast<StreamSocket*>(session_wrap);
+#ifdef _WIN32
+ GnuTLSIOHook* session = static_cast<GnuTLSIOHook*>(sock->GetIOHook());
+#endif
- void OnCleanup(int target_type, void* item)
- {
- if(target_type == TYPE_USER)
+ if (sock->GetEventMask() & FD_READ_WILL_BLOCK)
{
- LocalUser* user = IS_LOCAL(static_cast<User*>(item));
-
- if (user && user->eh.GetIOHook() == this)
- {
- // User is using SSL, they're a local user, and they're using one of *our* SSL ports.
- // Potentially there could be multiple SSL modules loaded at once on different ports.
- ServerInstance->Users->QuitUser(user, "SSL module unloading");
- }
+#ifdef _WIN32
+ gnutls_transport_set_errno(session->sess, EAGAIN);
+#else
+ errno = EAGAIN;
+#endif
+ return -1;
}
- }
-
- Version GetVersion()
- {
- return Version("Provides SSL support for clients", VF_VENDOR);
- }
-
- void On005Numeric(std::string &output)
- {
- if (!sslports.empty())
- output.append(" SSL=" + sslports);
- if (starttls.enabled)
- output.append(" STARTTLS");
- }
+ int rv = SocketEngine::Recv(sock, reinterpret_cast<char *>(buffer), size, 0);
- void OnHookIO(StreamSocket* user, ListenSocket* lsb)
- {
- if (!user->GetIOHook() && lsb->bind_tag->getString("ssl") == "gnutls")
+#ifdef _WIN32
+ if (rv < 0)
{
- /* Hook the user with our module */
- user->AddIOHook(this);
+ /* Windows doesn't use errno, but gnutls does, so check SocketEngine::IgnoreError()
+ * and then set errno appropriately.
+ * The gnutls library may also have a different errno variable than us, see
+ * gnutls_transport_set_errno(3).
+ */
+ gnutls_transport_set_errno(session->sess, SocketEngine::IgnoreError() ? EAGAIN : errno);
}
+#endif
+
+ if (rv < (int)size)
+ SocketEngine::ChangeEventMask(sock, FD_READ_WILL_BLOCK);
+ return rv;
}
- void OnRequest(Request& request)
+ static ssize_t gnutls_push_wrapper(gnutls_transport_ptr_t session_wrap, const void* buffer, size_t size)
{
- if (strcmp("GET_SSL_CERT", request.id) == 0)
- {
- SocketCertificateRequest& req = static_cast<SocketCertificateRequest&>(request);
- int fd = req.sock->GetFd();
- issl_session* session = &sessions[fd];
+ StreamSocket* sock = reinterpret_cast<StreamSocket*>(session_wrap);
+#ifdef _WIN32
+ GnuTLSIOHook* session = static_cast<GnuTLSIOHook*>(sock->GetIOHook());
+#endif
- req.cert = session->cert;
- }
- else if (!strcmp("GET_RAW_SSL_SESSION", request.id))
+ if (sock->GetEventMask() & FD_WRITE_WILL_BLOCK)
{
- SSLRawSessionRequest& req = static_cast<SSLRawSessionRequest&>(request);
- if ((req.fd >= 0) && (req.fd < ServerInstance->SE->GetMaxFds()))
- req.data = reinterpret_cast<void*>(sessions[req.fd].sess);
+#ifdef _WIN32
+ gnutls_transport_set_errno(session->sess, EAGAIN);
+#else
+ errno = EAGAIN;
+#endif
+ return -1;
}
- }
-
- void InitSession(StreamSocket* user, bool me_server)
- {
- issl_session* session = &sessions[user->GetFd()];
-
- gnutls_init(&session->sess, me_server ? GNUTLS_SERVER : GNUTLS_CLIENT);
- session->socket = user;
- session->config = currconf;
-
- #ifdef GNUTLS_NEW_PRIO_API
- gnutls_priority_set(session->sess, currconf->priority);
- #else
- gnutls_set_default_priority(session->sess);
- #endif
- gnutls_credentials_set(session->sess, GNUTLS_CRD_CERTIFICATE, currconf->x509_cred);
- gnutls_dh_set_prime_bits(session->sess, dh_bits);
- gnutls_transport_set_ptr(session->sess, reinterpret_cast<gnutls_transport_ptr_t>(session));
- gnutls_transport_set_push_function(session->sess, gnutls_push_wrapper);
- gnutls_transport_set_pull_function(session->sess, gnutls_pull_wrapper);
- if (me_server)
- gnutls_certificate_server_set_request(session->sess, GNUTLS_CERT_REQUEST); // Request client certificate if any.
-
- Handshake(session, user);
- }
-
- void OnStreamSocketAccept(StreamSocket* user, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server)
- {
- issl_session* session = &sessions[user->GetFd()];
+ int rv = SocketEngine::Send(sock, reinterpret_cast<const char *>(buffer), size, 0);
- /* For STARTTLS: Don't try and init a session on a socket that already has a session */
- if (session->sess)
- return;
+#ifdef _WIN32
+ if (rv < 0)
+ {
+ /* Windows doesn't use errno, but gnutls does, so check SocketEngine::IgnoreError()
+ * and then set errno appropriately.
+ * The gnutls library may also have a different errno variable than us, see
+ * gnutls_transport_set_errno(3).
+ */
+ gnutls_transport_set_errno(session->sess, SocketEngine::IgnoreError() ? EAGAIN : errno);
+ }
+#endif
- InitSession(user, true);
+ if (rv < (int)size)
+ SocketEngine::ChangeEventMask(sock, FD_WRITE_WILL_BLOCK);
+ return rv;
}
- void OnStreamSocketConnect(StreamSocket* user)
+ public:
+ GnuTLSIOHook(IOHookProvider* hookprov, StreamSocket* sock, bool outbound, const reference<GnuTLS::Profile>& sslprofile)
+ : SSLIOHook(hookprov)
+ , sess(NULL)
+ , status(ISSL_NONE)
+ , profile(sslprofile)
{
- InitSession(user, false);
+ InitSession(sock, outbound);
+ sock->AddIOHook(this);
+ Handshake(sock);
}
- void OnStreamSocketClose(StreamSocket* user)
+ void OnStreamSocketClose(StreamSocket* user) CXX11_OVERRIDE
{
- CloseSession(&sessions[user->GetFd()]);
+ CloseSession();
}
- int OnStreamSocketRead(StreamSocket* user, std::string& recvq)
+ int OnStreamSocketRead(StreamSocket* user, std::string& recvq) CXX11_OVERRIDE
{
- issl_session* session = &sessions[user->GetFd()];
-
- if (!session->sess)
+ if (!this->sess)
{
- CloseSession(session);
+ CloseSession();
user->SetError("No SSL session");
return -1;
}
return ERR_error_string(ERR_get_error(), NULL);
}
-static int error_callback(const char *str, size_t len, void *u);
+static int OnVerify(int preverify_ok, X509_STORE_CTX* ctx);
++static void StaticSSLInfoCallback(const SSL* ssl, int where, int rc);
-/** Represents an SSL user's extra data
- */
-class issl_session
+namespace OpenSSL
{
-public:
- SSL* sess;
- issl_status status;
- reference<ssl_cert> cert;
-
- bool outbound;
- bool data_to_write;
-
- issl_session()
- : sess(NULL)
- , status(ISSL_NONE)
+ class Exception : public ModuleException
{
- outbound = false;
- data_to_write = false;
- }
-};
+ public:
+ Exception(const std::string& reason)
+ : ModuleException(reason) { }
+ };
-static int OnVerify(int preverify_ok, X509_STORE_CTX *ctx)
-{
- /* XXX: This will allow self signed certificates.
- * In the future if we want an option to not allow this,
- * we can just return preverify_ok here, and openssl
- * will boot off self-signed and invalid peer certs.
- */
- int ve = X509_STORE_CTX_get_error(ctx);
-
- SelfSigned = (ve == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT);
-
- return 1;
-}
+ class DHParams
+ {
+ DH* dh;
-class ModuleSSLOpenSSL : public Module
-{
- issl_session* sessions;
+ public:
+ DHParams(const std::string& filename)
+ {
+ BIO* dhpfile = BIO_new_file(filename.c_str(), "r");
+ if (dhpfile == NULL)
+ throw Exception("Couldn't open DH file " + filename);
- SSL_CTX* ctx;
- SSL_CTX* clictx;
+ dh = PEM_read_bio_DHparams(dhpfile, NULL, NULL, NULL);
+ BIO_free(dhpfile);
- long ctx_options;
- long clictx_options;
+ if (!dh)
+ throw Exception("Couldn't read DH params from file " + filename);
+ }
- std::string sslports;
- bool use_sha;
+ ~DHParams()
+ {
+ DH_free(dh);
+ }
- ServiceProvider iohook;
+ DH* get()
+ {
+ return dh;
+ }
+ };
- static void SetContextOptions(SSL_CTX* ctx, long defoptions, const std::string& ctxname, ConfigTag* tag)
+ class Context
{
- long setoptions = tag->getInt(ctxname + "setoptions");
- // User-friendly config options for setting context options
-#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
- if (tag->getBool("cipherserverpref"))
- setoptions |= SSL_OP_CIPHER_SERVER_PREFERENCE;
+ SSL_CTX* const ctx;
++ long ctx_options;
+
+ public:
+ Context(SSL_CTX* context)
+ : ctx(context)
+ {
+ // Sane default options for OpenSSL see https://www.openssl.org/docs/ssl/SSL_CTX_set_options.html
+ // and when choosing a cipher, use the server's preferences instead of the client preferences.
- SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2 | SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION | SSL_OP_CIPHER_SERVER_PREFERENCE);
++ long opts = SSL_OP_NO_SSLv2 | SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION | SSL_OP_CIPHER_SERVER_PREFERENCE | SSL_OP_SINGLE_DH_USE;
++ // Only turn options on if they exist
++#ifdef SSL_OP_SINGLE_ECDH_USE
++ opts |= SSL_OP_SINGLE_ECDH_USE;
+ #endif
-#ifdef SSL_OP_NO_COMPRESSION
- if (!tag->getBool("compression", true))
- setoptions |= SSL_OP_NO_COMPRESSION;
++#ifdef SSL_OP_NO_TICKET
++ opts |= SSL_OP_NO_TICKET;
+ #endif
- if (!tag->getBool("sslv3", true))
- setoptions |= SSL_OP_NO_SSLv3;
- if (!tag->getBool("tlsv1", true))
- setoptions |= SSL_OP_NO_TLSv1;
+
- long clearoptions = tag->getInt(ctxname + "clearoptions");
- ServerInstance->Logs->Log("m_ssl_openssl", DEBUG, "Setting OpenSSL %s context options, default: %ld set: %ld clear: %ld", ctxname.c_str(), defoptions, setoptions, clearoptions);
++ ctx_options = SSL_CTX_set_options(ctx, opts);
+ SSL_CTX_set_mode(ctx, SSL_MODE_ENABLE_PARTIAL_WRITE | SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
+ SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, OnVerify);
-
- const unsigned char session_id[] = "inspircd";
- SSL_CTX_set_session_id_context(ctx, session_id, sizeof(session_id) - 1);
++ SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
++ SSL_CTX_set_info_callback(ctx, StaticSSLInfoCallback);
+ }
- // Clear everything
- SSL_CTX_clear_options(ctx, SSL_CTX_get_options(ctx));
+ ~Context()
+ {
+ SSL_CTX_free(ctx);
+ }
- // Set the default options and what is in the conf
- SSL_CTX_set_options(ctx, defoptions | setoptions);
- long final = SSL_CTX_clear_options(ctx, clearoptions);
- ServerInstance->Logs->Log("m_ssl_openssl", DEFAULT, "OpenSSL %s context options: %ld", ctxname.c_str(), final);
- }
+ bool SetDH(DHParams& dh)
+ {
++ ERR_clear_error();
+ return (SSL_CTX_set_tmp_dh(ctx, dh.get()) >= 0);
+ }
- void SetupECDH(ConfigTag* tag)
- {
- std::string curvename = tag->getString("ecdhcurve", "prime256v1");
- if (curvename.empty())
- return;
-
- int nid = OBJ_sn2nid(curvename.c_str());
- if (nid == 0)
+ #ifdef INSPIRCD_OPENSSL_ENABLE_ECDH
- ServerInstance->Logs->Log("m_ssl_openssl", DEFAULT, "m_ssl_openssl.so: Unknown curve: \"%s\"", curvename.c_str());
- return;
++ void SetECDH(const std::string& curvename)
+ {
- EC_KEY* eckey = EC_KEY_new_by_curve_name(nid);
- if (!eckey)
++ int nid = OBJ_sn2nid(curvename.c_str());
++ if (nid == 0)
++ throw Exception("Unknown curve: " + curvename);
++
++ EC_KEY* eckey = EC_KEY_new_by_curve_name(nid);
++ if (!eckey)
++ throw Exception("Unable to create EC key object");
++
++ ERR_clear_error();
++ bool ret = (SSL_CTX_set_tmp_ecdh(ctx, eckey) >= 0);
++ EC_KEY_free(eckey);
++ if (!ret)
++ throw Exception("Couldn't set ECDH parameters");
+ }
++#endif
+
+ bool SetCiphers(const std::string& ciphers)
{
- ServerInstance->Logs->Log("m_ssl_openssl", DEFAULT, "m_ssl_openssl.so: Unable to create EC key object");
- return;
++ ERR_clear_error();
+ return SSL_CTX_set_cipher_list(ctx, ciphers.c_str());
}
- ERR_clear_error();
- if (SSL_CTX_set_tmp_ecdh(ctx, eckey) < 0)
+ bool SetCerts(const std::string& filename)
{
- ServerInstance->Logs->Log("m_ssl_openssl", DEFAULT, "m_ssl_openssl.so: Couldn't set ECDH parameters");
- ERR_print_errors_cb(error_callback, this);
++ ERR_clear_error();
+ return SSL_CTX_use_certificate_chain_file(ctx, filename.c_str());
}
- EC_KEY_free(eckey);
- }
-#endif
+ bool SetPrivateKey(const std::string& filename)
+ {
++ ERR_clear_error();
+ return SSL_CTX_use_PrivateKey_file(ctx, filename.c_str(), SSL_FILETYPE_PEM);
+ }
-#ifdef INSPIRCD_OPENSSL_ENABLE_RENEGO_DETECTION
- static void SSLInfoCallback(const SSL* ssl, int where, int rc)
- {
- int fd = SSL_get_fd(const_cast<SSL*>(ssl));
- issl_session& session = opensslmod->sessions[fd];
+ bool SetCA(const std::string& filename)
+ {
++ ERR_clear_error();
+ return SSL_CTX_load_verify_locations(ctx, filename.c_str(), 0);
+ }
- if ((where & SSL_CB_HANDSHAKE_START) && (session.status == ISSL_OPEN))
++ long GetDefaultContextOptions() const
+ {
- // The other side is trying to renegotiate, kill the connection and change status
- // to ISSL_NONE so CheckRenego() closes the session
- session.status = ISSL_NONE;
- ServerInstance->SE->Shutdown(fd, 2);
++ return ctx_options;
+ }
- }
+
- bool CheckRenego(StreamSocket* sock, issl_session* session)
- {
- if (session->status != ISSL_NONE)
- return true;
++ long SetRawContextOptions(long setoptions, long clearoptions)
++ {
++ // Clear everything
++ SSL_CTX_clear_options(ctx, SSL_CTX_get_options(ctx));
+
- ServerInstance->Logs->Log("m_ssl_openssl", DEBUG, "Session %p killed, attempted to renegotiate", (void*)session->sess);
- CloseSession(session);
- sock->SetError("Renegotiation is not allowed");
- return false;
- }
-#endif
++ // Set the default options and what is in the conf
++ SSL_CTX_set_options(ctx, ctx_options | setoptions);
++ return SSL_CTX_clear_options(ctx, clearoptions);
++ }
+
- public:
+ SSL* CreateSession()
+ {
+ return SSL_new(ctx);
+ }
+ };
- ModuleSSLOpenSSL() : iohook(this, "ssl/openssl", SERVICE_IOHOOK)
+ class Profile : public refcountbase
{
-#ifdef INSPIRCD_OPENSSL_ENABLE_RENEGO_DETECTION
- opensslmod = this;
-#endif
- sessions = new issl_session[ServerInstance->SE->GetMaxFds()];
-
- /* Global SSL library initialization*/
- SSL_library_init();
- SSL_load_error_strings();
-
- /* Build our SSL contexts:
- * NOTE: OpenSSL makes us have two contexts, one for servers and one for clients. ICK.
+ /** Name of this profile
*/
- ctx = SSL_CTX_new( SSLv23_server_method() );
- clictx = SSL_CTX_new( SSLv23_client_method() );
-
- SSL_CTX_set_mode(ctx, SSL_MODE_ENABLE_PARTIAL_WRITE | SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
- SSL_CTX_set_mode(clictx, SSL_MODE_ENABLE_PARTIAL_WRITE | SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
+ const std::string name;
- SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, OnVerify);
- SSL_CTX_set_verify(clictx, SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, OnVerify);
+ /** DH parameters in use
+ */
+ DHParams dh;
- SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
- SSL_CTX_set_session_cache_mode(clictx, SSL_SESS_CACHE_OFF);
+ /** OpenSSL makes us have two contexts, one for servers and one for clients
+ */
+ Context ctx;
+ Context clictx;
- long opts = SSL_OP_NO_SSLv2 | SSL_OP_SINGLE_DH_USE;
- // Only turn options on if they exist
-#ifdef SSL_OP_SINGLE_ECDH_USE
- opts |= SSL_OP_SINGLE_ECDH_USE;
-#endif
-#ifdef SSL_OP_NO_TICKET
- opts |= SSL_OP_NO_TICKET;
-#endif
+ /** Digest to use when generating fingerprints
+ */
+ const EVP_MD* digest;
- ctx_options = SSL_CTX_set_options(ctx, opts);
- clictx_options = SSL_CTX_set_options(clictx, opts);
- }
+ /** Last error, set by error_callback()
+ */
+ std::string lasterr;
- void init()
- {
- // Needs the flag as it ignores a plain /rehash
- OnModuleRehash(NULL,"ssl");
- Implementation eventlist[] = { I_On005Numeric, I_OnRehash, I_OnModuleRehash, I_OnHookIO, I_OnUserConnect };
- ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
- ServerInstance->Modules->AddService(iohook);
- }
++ /** True if renegotiations are allowed, false if not
++ */
++ const bool allowrenego;
+
- void OnHookIO(StreamSocket* user, ListenSocket* lsb)
- {
- if (!user->GetIOHook() && lsb->bind_tag->getString("ssl") == "openssl")
+ static int error_callback(const char* str, size_t len, void* u)
{
- /* Hook the user with our module */
- user->AddIOHook(this);
+ Profile* profile = reinterpret_cast<Profile*>(u);
+ profile->lasterr = std::string(str, len - 1);
+ return 0;
}
- }
- void OnRehash(User* user)
- {
- sslports.clear();
++ /** Set raw OpenSSL context (SSL_CTX) options from a config tag
++ * @param ctxname Name of the context, client or server
++ * @param tag Config tag defining this profile
++ * @param context Context object to manipulate
++ */
++ void SetContextOptions(const std::string& ctxname, ConfigTag* tag, Context& context)
++ {
++ long setoptions = tag->getInt(ctxname + "setoptions");
++ long clearoptions = tag->getInt(ctxname + "clearoptions");
++#ifdef SSL_OP_NO_COMPRESSION
++ if (!tag->getBool("compression", true))
++ setoptions |= SSL_OP_NO_COMPRESSION;
++#endif
++ if (!tag->getBool("sslv3", true))
++ setoptions |= SSL_OP_NO_SSLv3;
++ if (!tag->getBool("tlsv1", true))
++ setoptions |= SSL_OP_NO_TLSv1;
+
- ConfigTag* Conf = ServerInstance->Config->ConfValue("openssl");
++ if (!setoptions && !clearoptions)
++ return; // Nothing to do
+
-#ifdef INSPIRCD_OPENSSL_ENABLE_RENEGO_DETECTION
- // Set the callback if we are not allowing renegotiations, unset it if we do
- if (Conf->getBool("renegotiation", true))
- {
- SSL_CTX_set_info_callback(ctx, NULL);
- SSL_CTX_set_info_callback(clictx, NULL);
++ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Setting %s %s context options, default: %ld set: %ld clear: %ld", name.c_str(), ctxname.c_str(), ctx.GetDefaultContextOptions(), setoptions, clearoptions);
++ long final = context.SetRawContextOptions(setoptions, clearoptions);
++ ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "%s %s context options: %ld", name.c_str(), ctxname.c_str(), final);
+ }
- else
- {
- SSL_CTX_set_info_callback(ctx, SSLInfoCallback);
- SSL_CTX_set_info_callback(clictx, SSLInfoCallback);
- }
-#endif
+
- if (Conf->getBool("showports", true))
+ public:
+ Profile(const std::string& profilename, ConfigTag* tag)
+ : name(profilename)
+ , dh(ServerInstance->Config->Paths.PrependConfig(tag->getString("dhfile", "dh.pem")))
+ , ctx(SSL_CTX_new(SSLv23_server_method()))
+ , clictx(SSL_CTX_new(SSLv23_client_method()))
++ , allowrenego(tag->getBool("renegotiation", true))
{
- sslports = Conf->getString("advertisedports");
- if (!sslports.empty())
- return;
-
- for (size_t i = 0; i < ServerInstance->ports.size(); i++)
- {
- ListenSocket* port = ServerInstance->ports[i];
- if (port->bind_tag->getString("ssl") != "openssl")
- continue;
+ if ((!ctx.SetDH(dh)) || (!clictx.SetDH(dh)))
+ throw Exception("Couldn't set DH parameters");
- const std::string& portid = port->bind_desc;
- ServerInstance->Logs->Log("m_ssl_openssl", DEFAULT, "m_ssl_openssl.so: Enabling SSL for port %s", portid.c_str());
+ std::string hash = tag->getString("hash", "md5");
+ digest = EVP_get_digestbyname(hash.c_str());
+ if (digest == NULL)
+ throw Exception("Unknown hash type " + hash);
- if (port->bind_tag->getString("type", "clients") == "clients" && port->bind_addr != "127.0.0.1")
+ std::string ciphers = tag->getString("ciphers");
+ if (!ciphers.empty())
+ {
+ if ((!ctx.SetCiphers(ciphers)) || (!clictx.SetCiphers(ciphers)))
{
- /*
- * Found an SSL port for clients that is not bound to 127.0.0.1 and handled by us, display
- * the IP:port in ISUPPORT.
- *
- * We used to advertise all ports seperated by a ';' char that matched the above criteria,
- * but this resulted in too long ISUPPORT lines if there were lots of ports to be displayed.
- * To solve this by default we now only display the first IP:port found and let the user
- * configure the exact value for the 005 token, if necessary.
- */
- sslports = portid;
- break;
+ ERR_print_errors_cb(error_callback, this);
+ throw Exception("Can't set cipher list to \"" + ciphers + "\" " + lasterr);
}
}
- }
- }
- void OnModuleRehash(User* user, const std::string ¶m)
- {
- if (param != "ssl")
- return;
-
- std::string keyfile;
- std::string certfile;
- std::string cafile;
- std::string dhfile;
- OnRehash(user);
-
- ConfigTag* conf = ServerInstance->Config->ConfValue("openssl");
++#ifdef INSPIRCD_OPENSSL_ENABLE_ECDH
++ std::string curvename = tag->getString("ecdhcurve", "prime256v1");
++ if (!curvename.empty())
++ ctx.SetECDH(curvename);
++#endif
+
- cafile = conf->getString("cafile", CONFIG_PATH "/ca.pem");
- certfile = conf->getString("certfile", CONFIG_PATH "/cert.pem");
- keyfile = conf->getString("keyfile", CONFIG_PATH "/key.pem");
- dhfile = conf->getString("dhfile", CONFIG_PATH "/dhparams.pem");
- std::string hash = conf->getString("hash", "md5");
- if (hash != "sha1" && hash != "md5")
- throw ModuleException("Unknown hash type " + hash);
- use_sha = (hash == "sha1");
++ SetContextOptions("server", tag, ctx);
++ SetContextOptions("client", tag, clictx);
+
- if (conf->getBool("customcontextoptions"))
- {
- SetContextOptions(ctx, ctx_options, "server", conf);
- SetContextOptions(clictx, clictx_options, "client", conf);
- }
+ /* Load our keys and certificates
+ * NOTE: OpenSSL's error logging API sucks, don't blame us for this clusterfuck.
+ */
+ std::string filename = ServerInstance->Config->Paths.PrependConfig(tag->getString("certfile", "cert.pem"));
+ if ((!ctx.SetCerts(filename)) || (!clictx.SetCerts(filename)))
+ {
+ ERR_print_errors_cb(error_callback, this);
+ throw Exception("Can't read certificate file: " + lasterr);
+ }
- std::string ciphers = conf->getString("ciphers", "");
+ filename = ServerInstance->Config->Paths.PrependConfig(tag->getString("keyfile", "key.pem"));
+ if ((!ctx.SetPrivateKey(filename)) || (!clictx.SetPrivateKey(filename)))
+ {
+ ERR_print_errors_cb(error_callback, this);
+ throw Exception("Can't read key file: " + lasterr);
+ }
- if (!ciphers.empty())
- {
- ERR_clear_error();
- if ((!SSL_CTX_set_cipher_list(ctx, ciphers.c_str())) || (!SSL_CTX_set_cipher_list(clictx, ciphers.c_str())))
+ // Load the CAs we trust
+ filename = ServerInstance->Config->Paths.PrependConfig(tag->getString("cafile", "ca.pem"));
+ if ((!ctx.SetCA(filename)) || (!clictx.SetCA(filename)))
{
- ServerInstance->Logs->Log("m_ssl_openssl",DEFAULT, "m_ssl_openssl.so: Can't set cipher list to %s.", ciphers.c_str());
ERR_print_errors_cb(error_callback, this);
+ ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Can't read CA list from %s. This is only a problem if you want to verify client certificates, otherwise it's safe to ignore this message. Error: %s", filename.c_str(), lasterr.c_str());
}
}
- /* Load our keys and certificates
- * NOTE: OpenSSL's error logging API sucks, don't blame us for this clusterfuck.
- */
- ERR_clear_error();
- if ((!SSL_CTX_use_certificate_chain_file(ctx, certfile.c_str())) || (!SSL_CTX_use_certificate_chain_file(clictx, certfile.c_str())))
- {
- ServerInstance->Logs->Log("m_ssl_openssl",DEFAULT, "m_ssl_openssl.so: Can't read certificate file %s. %s", certfile.c_str(), strerror(errno));
- ERR_print_errors_cb(error_callback, this);
- }
+ const std::string& GetName() const { return name; }
+ SSL* CreateServerSession() { return ctx.CreateSession(); }
+ SSL* CreateClientSession() { return clictx.CreateSession(); }
+ const EVP_MD* GetDigest() { return digest; }
++ bool AllowRenegotiation() const { return allowrenego; }
+ };
+}
- ERR_clear_error();
- if (((!SSL_CTX_use_PrivateKey_file(ctx, keyfile.c_str(), SSL_FILETYPE_PEM))) || (!SSL_CTX_use_PrivateKey_file(clictx, keyfile.c_str(), SSL_FILETYPE_PEM)))
- {
- ServerInstance->Logs->Log("m_ssl_openssl",DEFAULT, "m_ssl_openssl.so: Can't read key file %s. %s", keyfile.c_str(), strerror(errno));
- ERR_print_errors_cb(error_callback, this);
- }
+static int OnVerify(int preverify_ok, X509_STORE_CTX *ctx)
+{
+ /* XXX: This will allow self signed certificates.
+ * In the future if we want an option to not allow this,
+ * we can just return preverify_ok here, and openssl
+ * will boot off self-signed and invalid peer certs.
+ */
+ int ve = X509_STORE_CTX_get_error(ctx);
- /* Load the CAs we trust*/
- ERR_clear_error();
- if (((!SSL_CTX_load_verify_locations(ctx, cafile.c_str(), 0))) || (!SSL_CTX_load_verify_locations(clictx, cafile.c_str(), 0)))
- {
- ServerInstance->Logs->Log("m_ssl_openssl",DEFAULT, "m_ssl_openssl.so: Can't read CA list from %s. This is only a problem if you want to verify client certificates, otherwise it's safe to ignore this message. Error: %s", cafile.c_str(), strerror(errno));
- ERR_print_errors_cb(error_callback, this);
- }
+ SelfSigned = (ve == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT);
-#ifdef _WIN32
- BIO* dhpfile = BIO_new_file(dhfile.c_str(), "r");
-#else
- FILE* dhpfile = fopen(dhfile.c_str(), "r");
-#endif
- DH* ret;
+ return 1;
+}
- if (dhpfile == NULL)
- {
- ServerInstance->Logs->Log("m_ssl_openssl",DEFAULT, "m_ssl_openssl.so Couldn't open DH file %s: %s", dhfile.c_str(), strerror(errno));
- throw ModuleException("Couldn't open DH file " + dhfile + ": " + strerror(errno));
- }
+class OpenSSLIOHook : public SSLIOHook
+{
+ private:
+ SSL* sess;
+ issl_status status;
+ const bool outbound;
+ bool data_to_write;
+ reference<OpenSSL::Profile> profile;
+
+ bool Handshake(StreamSocket* user)
+ {
+ int ret;
+
++ ERR_clear_error();
+ if (outbound)
+ ret = SSL_connect(sess);
else
+ ret = SSL_accept(sess);
+
+ if (ret < 0)
{
-#ifdef _WIN32
- ret = PEM_read_bio_DHparams(dhpfile, NULL, NULL, NULL);
- BIO_free(dhpfile);
-#else
- ret = PEM_read_DHparams(dhpfile, NULL, NULL, NULL);
-#endif
+ int err = SSL_get_error(sess, ret);
- ERR_clear_error();
- if ((SSL_CTX_set_tmp_dh(ctx, ret) < 0) || (SSL_CTX_set_tmp_dh(clictx, ret) < 0))
+ if (err == SSL_ERROR_WANT_READ)
{
- ServerInstance->Logs->Log("m_ssl_openssl",DEFAULT, "m_ssl_openssl.so: Couldn't set DH parameters %s. SSL errors follow:", dhfile.c_str());
- ERR_print_errors_cb(error_callback, this);
+ SocketEngine::ChangeEventMask(user, FD_WANT_POLL_READ | FD_WANT_NO_WRITE);
+ this->status = ISSL_HANDSHAKING;
+ return true;
+ }
+ else if (err == SSL_ERROR_WANT_WRITE)
+ {
+ SocketEngine::ChangeEventMask(user, FD_WANT_NO_READ | FD_WANT_SINGLE_WRITE);
+ this->status = ISSL_HANDSHAKING;
+ return true;
+ }
+ else
+ {
+ CloseSession();
}
- DH_free(ret);
- }
-
-#ifndef _WIN32
- fclose(dhpfile);
-#endif
-#ifdef INSPIRCD_OPENSSL_ENABLE_ECDH
- SetupECDH(conf);
-#endif
- }
+ return false;
+ }
+ else if (ret > 0)
+ {
+ // Handshake complete.
+ VerifyCertificate();
- void On005Numeric(std::string &output)
- {
- if (!sslports.empty())
- output.append(" SSL=" + sslports);
- }
+ status = ISSL_OPEN;
- ~ModuleSSLOpenSSL()
- {
- SSL_CTX_free(ctx);
- SSL_CTX_free(clictx);
- delete[] sessions;
- }
+ SocketEngine::ChangeEventMask(user, FD_WANT_POLL_READ | FD_WANT_NO_WRITE | FD_ADD_TRIAL_WRITE);
- void OnUserConnect(LocalUser* user)
- {
- if (user->eh.GetIOHook() == this)
+ return true;
+ }
+ else if (ret == 0)
{
- if (sessions[user->eh.GetFd()].sess)
- {
- if (!sessions[user->eh.GetFd()].cert->fingerprint.empty())
- user->WriteServ("NOTICE %s :*** You are connected using SSL cipher \"%s\""
- " and your SSL fingerprint is %s", user->nick.c_str(), SSL_get_cipher(sessions[user->eh.GetFd()].sess), sessions[user->eh.GetFd()].cert->fingerprint.c_str());
- else
- user->WriteServ("NOTICE %s :*** You are connected using SSL cipher \"%s\"", user->nick.c_str(), SSL_get_cipher(sessions[user->eh.GetFd()].sess));
- }
+ CloseSession();
- return true;
}
-
- return true;
++ return false;
}
- void OnCleanup(int target_type, void* item)
+ void CloseSession()
{
- if (target_type == TYPE_USER)
+ if (sess)
{
- LocalUser* user = IS_LOCAL((User*)item);
-
- if (user && user->eh.GetIOHook() == this)
- {
- // User is using SSL, they're a local user, and they're using one of *our* SSL ports.
- // Potentially there could be multiple SSL modules loaded at once on different ports.
- ServerInstance->Users->QuitUser(user, "SSL module unloading");
- }
+ SSL_shutdown(sess);
+ SSL_free(sess);
}
- errno = EIO;
+ sess = NULL;
+ certificate = NULL;
+ status = ISSL_NONE;
}
- Version GetVersion()
+ void VerifyCertificate()
{
- return Version("Provides SSL support for clients", VF_VENDOR);
- }
+ X509* cert;
+ ssl_cert* certinfo = new ssl_cert;
+ this->certificate = certinfo;
+ unsigned int n;
+ unsigned char md[EVP_MAX_MD_SIZE];
- void OnRequest(Request& request)
- {
- if (strcmp("GET_SSL_CERT", request.id) == 0)
+ cert = SSL_get_peer_certificate(sess);
+
+ if (!cert)
{
- SocketCertificateRequest& req = static_cast<SocketCertificateRequest&>(request);
- int fd = req.sock->GetFd();
- issl_session* session = &sessions[fd];
+ certinfo->error = "Could not get peer certificate: "+std::string(get_error());
+ return;
+ }
+
+ certinfo->invalid = (SSL_get_verify_result(sess) != X509_V_OK);
- req.cert = session->cert;
+ if (!SelfSigned)
+ {
+ certinfo->unknownsigner = false;
+ certinfo->trusted = true;
}
- else if (!strcmp("GET_RAW_SSL_SESSION", request.id))
+ else
{
- SSLRawSessionRequest& req = static_cast<SSLRawSessionRequest&>(request);
- if ((req.fd >= 0) && (req.fd < ServerInstance->SE->GetMaxFds()))
- req.data = reinterpret_cast<void*>(sessions[req.fd].sess);
+ certinfo->unknownsigner = true;
+ certinfo->trusted = false;
}
- }
-
- void OnStreamSocketAccept(StreamSocket* user, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server)
- {
- int fd = user->GetFd();
- issl_session* session = &sessions[fd];
+ char buf[512];
+ X509_NAME_oneline(X509_get_subject_name(cert), buf, sizeof(buf));
+ certinfo->dn = buf;
+ // Make sure there are no chars in the string that we consider invalid
+ if (certinfo->dn.find_first_of("\r\n") != std::string::npos)
+ certinfo->dn.clear();
- session->sess = SSL_new(ctx);
- session->status = ISSL_NONE;
- session->outbound = false;
- session->data_to_write = false;
+ X509_NAME_oneline(X509_get_issuer_name(cert), buf, sizeof(buf));
+ certinfo->issuer = buf;
+ if (certinfo->issuer.find_first_of("\r\n") != std::string::npos)
+ certinfo->issuer.clear();
- if (session->sess == NULL)
- return;
+ if (!X509_digest(cert, profile->GetDigest(), md, &n))
+ {
+ certinfo->error = "Out of memory generating fingerprint";
+ }
+ else
+ {
+ certinfo->fingerprint = BinToHex(md, n);
+ }
- if (SSL_set_fd(session->sess, fd) == 0)
+ if ((ASN1_UTCTIME_cmp_time_t(X509_get_notAfter(cert), ServerInstance->Time()) == -1) || (ASN1_UTCTIME_cmp_time_t(X509_get_notBefore(cert), ServerInstance->Time()) == 0))
{
- ServerInstance->Logs->Log("m_ssl_openssl",DEBUG,"BUG: Can't set fd with SSL_set_fd: %d", fd);
- return;
+ certinfo->error = "Not activated, or expired certificate";
}
- Handshake(user, session);
+ X509_free(cert);
}
- void OnStreamSocketConnect(StreamSocket* user)
++#ifdef INSPIRCD_OPENSSL_ENABLE_RENEGO_DETECTION
++ void SSLInfoCallback(int where, int rc)
+ {
- int fd = user->GetFd();
- /* Are there any possibilities of an out of range fd? Hope not, but lets be paranoid */
- if ((fd < 0) || (fd > ServerInstance->SE->GetMaxFds() -1))
- return;
-
- issl_session* session = &sessions[fd];
-
- session->sess = SSL_new(clictx);
- session->status = ISSL_NONE;
- session->outbound = true;
- session->data_to_write = false;
-
- if (session->sess == NULL)
- return;
-
- if (SSL_set_fd(session->sess, fd) == 0)
++ if ((where & SSL_CB_HANDSHAKE_START) && (status == ISSL_OPEN))
+ {
- ServerInstance->Logs->Log("m_ssl_openssl",DEBUG,"BUG: Can't set fd with SSL_set_fd: %d", fd);
- return;
++ if (profile->AllowRenegotiation())
++ return;
++
++ // The other side is trying to renegotiate, kill the connection and change status
++ // to ISSL_NONE so CheckRenego() closes the session
++ status = ISSL_NONE;
++ SocketEngine::Shutdown(SSL_get_fd(sess), 2);
+ }
++ }
++
++ bool CheckRenego(StreamSocket* sock)
++ {
++ if (status != ISSL_NONE)
++ return true;
+
- Handshake(user, session);
++ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Session %p killed, attempted to renegotiate", (void*)sess);
++ CloseSession();
++ sock->SetError("Renegotiation is not allowed");
++ return false;
+ }
++#endif
++
++ // Calls our private SSLInfoCallback()
++ friend void StaticSSLInfoCallback(const SSL* ssl, int where, int rc);
+
- void OnStreamSocketClose(StreamSocket* user)
+ public:
+ OpenSSLIOHook(IOHookProvider* hookprov, StreamSocket* sock, bool is_outbound, SSL* session, const reference<OpenSSL::Profile>& sslprofile)
+ : SSLIOHook(hookprov)
+ , sess(session)
+ , status(ISSL_NONE)
+ , outbound(is_outbound)
+ , data_to_write(false)
+ , profile(sslprofile)
{
- int fd = user->GetFd();
- /* Are there any possibilities of an out of range fd? Hope not, but lets be paranoid */
- if ((fd < 0) || (fd > ServerInstance->SE->GetMaxFds() - 1))
+ if (sess == NULL)
return;
+ if (SSL_set_fd(sess, sock->GetFd()) == 0)
+ throw ModuleException("Can't set fd with SSL_set_fd: " + ConvToStr(sock->GetFd()));
- CloseSession(&sessions[fd]);
+ SSL_set_ex_data(sess, exdataindex, this);
+ sock->AddIOHook(this);
+ Handshake(sock);
}
- int OnStreamSocketRead(StreamSocket* user, std::string& recvq)
+ void OnStreamSocketClose(StreamSocket* user) CXX11_OVERRIDE
{
- int fd = user->GetFd();
- /* Are there any possibilities of an out of range fd? Hope not, but lets be paranoid */
- if ((fd < 0) || (fd > ServerInstance->SE->GetMaxFds() - 1))
- return -1;
-
- issl_session* session = &sessions[fd];
+ CloseSession();
+ }
- if (!session->sess)
+ int OnStreamSocketRead(StreamSocket* user, std::string& recvq) CXX11_OVERRIDE
+ {
+ if (!sess)
{
- CloseSession(session);
+ CloseSession();
return -1;
}
}
}
- // If we resumed the handshake then session->status will be ISSL_OPEN
+ // If we resumed the handshake then this->status will be ISSL_OPEN
- if (session->status == ISSL_OPEN)
+ if (status == ISSL_OPEN)
{
+ ERR_clear_error();
char* buffer = ServerInstance->GetReadBuffer();
size_t bufsiz = ServerInstance->Config->NetBufferSize;
- int ret = SSL_read(session->sess, buffer, bufsiz);
+ int ret = SSL_read(sess, buffer, bufsiz);
- if (!CheckRenego(user, session))
+ #ifdef INSPIRCD_OPENSSL_ENABLE_RENEGO_DETECTION
++ if (!CheckRenego(user))
+ return -1;
+ #endif
+
if (ret > 0)
{
recvq.append(buffer, ret);
}
}
- if (session->status == ISSL_OPEN)
+ if (status == ISSL_OPEN)
{
- int ret = SSL_write(session->sess, buffer.data(), buffer.size());
+ ERR_clear_error();
- if (!CheckRenego(user, session))
+ int ret = SSL_write(sess, buffer.data(), buffer.size());
+
+ #ifdef INSPIRCD_OPENSSL_ENABLE_RENEGO_DETECTION
++ if (!CheckRenego(user))
+ return -1;
+ #endif
+
if (ret == (int)buffer.length())
{
- session->data_to_write = false;
- ServerInstance->SE->ChangeEventMask(user, FD_WANT_POLL_READ | FD_WANT_NO_WRITE);
+ data_to_write = false;
+ SocketEngine::ChangeEventMask(user, FD_WANT_POLL_READ | FD_WANT_NO_WRITE);
return 1;
}
else if (ret > 0)
return 0;
}
- bool Handshake(StreamSocket* user, issl_session* session)
+ void TellCiphersAndFingerprint(LocalUser* user)
{
- int ret;
+ if (sess)
+ {
+ std::string text = "*** You are connected using SSL cipher '" + std::string(SSL_get_cipher(sess)) + "'";
+ const std::string& fingerprint = certificate->fingerprint;
+ if (!fingerprint.empty())
+ text += " and your SSL certificate fingerprint is " + fingerprint;
- ERR_clear_error();
- if (session->outbound)
- ret = SSL_connect(session->sess);
- else
- ret = SSL_accept(session->sess);
+ user->WriteNotice(text);
+ }
+ }
+};
- if (ret < 0)
++static void StaticSSLInfoCallback(const SSL* ssl, int where, int rc)
++{
++#ifdef INSPIRCD_OPENSSL_ENABLE_RENEGO_DETECTION
++ OpenSSLIOHook* hook = static_cast<OpenSSLIOHook*>(SSL_get_ex_data(ssl, exdataindex));
++ hook->SSLInfoCallback(where, rc);
++#endif
++}
++
+class OpenSSLIOHookProvider : public refcountbase, public IOHookProvider
+{
+ reference<OpenSSL::Profile> profile;
+
+ public:
+ OpenSSLIOHookProvider(Module* mod, reference<OpenSSL::Profile>& prof)
+ : IOHookProvider(mod, "ssl/" + prof->GetName(), IOHookProvider::IOH_SSL)
+ , profile(prof)
+ {
+ ServerInstance->Modules->AddService(*this);
+ }
+
+ ~OpenSSLIOHookProvider()
+ {
+ ServerInstance->Modules->DelService(*this);
+ }
+
+ void OnAccept(StreamSocket* sock, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server) CXX11_OVERRIDE
+ {
+ new OpenSSLIOHook(this, sock, false, profile->CreateServerSession(), profile);
+ }
+
+ void OnConnect(StreamSocket* sock) CXX11_OVERRIDE
+ {
+ new OpenSSLIOHook(this, sock, true, profile->CreateClientSession(), profile);
+ }
+};
+
+class ModuleSSLOpenSSL : public Module
+{
+ typedef std::vector<reference<OpenSSLIOHookProvider> > ProfileList;
+
+ ProfileList profiles;
+
+ void ReadProfiles()
+ {
+ ProfileList newprofiles;
+ ConfigTagList tags = ServerInstance->Config->ConfTags("sslprofile");
+ if (tags.first == tags.second)
{
- int err = SSL_get_error(session->sess, ret);
+ // Create a default profile named "openssl"
+ const std::string defname = "openssl";
+ ConfigTag* tag = ServerInstance->Config->ConfValue(defname);
+ ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "No <sslprofile> tags found, using settings from the <openssl> tag");
- if (err == SSL_ERROR_WANT_READ)
+ try
{
- ServerInstance->SE->ChangeEventMask(user, FD_WANT_POLL_READ | FD_WANT_NO_WRITE);
- session->status = ISSL_HANDSHAKING;
- return true;
+ reference<OpenSSL::Profile> profile(new OpenSSL::Profile(defname, tag));
+ newprofiles.push_back(new OpenSSLIOHookProvider(this, profile));
}
- else if (err == SSL_ERROR_WANT_WRITE)
+ catch (OpenSSL::Exception& ex)
{
- ServerInstance->SE->ChangeEventMask(user, FD_WANT_NO_READ | FD_WANT_SINGLE_WRITE);
- session->status = ISSL_HANDSHAKING;
- return true;
- }
- else
- {
- CloseSession(session);
+ throw ModuleException("Error while initializing the default SSL profile - " + ex.GetReason());
}
-
- return false;
}
- else if (ret > 0)
+
+ for (ConfigIter i = tags.first; i != tags.second; ++i)
{
- // Handshake complete.
- VerifyCertificate(session, user);
+ ConfigTag* tag = i->second;
+ if (tag->getString("provider") != "openssl")
+ continue;
- session->status = ISSL_OPEN;
+ std::string name = tag->getString("name");
+ if (name.empty())
+ {
+ ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Ignoring <sslprofile> tag without name at " + tag->getTagLocation());
+ continue;
+ }
- ServerInstance->SE->ChangeEventMask(user, FD_WANT_POLL_READ | FD_WANT_NO_WRITE | FD_ADD_TRIAL_WRITE);
+ reference<OpenSSL::Profile> profile;
+ try
+ {
+ profile = new OpenSSL::Profile(name, tag);
+ }
+ catch (CoreException& ex)
+ {
+ throw ModuleException("Error while initializing SSL profile \"" + name + "\" at " + tag->getTagLocation() + " - " + ex.GetReason());
+ }
- return true;
- }
- else if (ret == 0)
- {
- CloseSession(session);
+ newprofiles.push_back(new OpenSSLIOHookProvider(this, profile));
}
- return false;
+
+ profiles.swap(newprofiles);
}
- void CloseSession(issl_session* session)
+ public:
+ ModuleSSLOpenSSL()
{
- if (session->sess)
- {
- SSL_shutdown(session->sess);
- SSL_free(session->sess);
- }
-
- session->sess = NULL;
- session->status = ISSL_NONE;
- session->cert = NULL;
+ // Initialize OpenSSL
+ SSL_library_init();
+ SSL_load_error_strings();
}
- void VerifyCertificate(issl_session* session, StreamSocket* user)
+ void init() CXX11_OVERRIDE
{
- if (!session->sess || !user)
- return;
+ // Register application specific data
+ char exdatastr[] = "inspircd";
+ exdataindex = SSL_get_ex_new_index(0, exdatastr, NULL, NULL, NULL);
+ if (exdataindex < 0)
+ throw ModuleException("Failed to register application specific data");
- X509* cert;
- ssl_cert* certinfo = new ssl_cert;
- session->cert = certinfo;
- unsigned int n;
- unsigned char md[EVP_MAX_MD_SIZE];
- const EVP_MD *digest = use_sha ? EVP_sha1() : EVP_md5();
-
- cert = SSL_get_peer_certificate((SSL*)session->sess);
+ ReadProfiles();
+ }
- if (!cert)
- {
- certinfo->error = "Could not get peer certificate: "+std::string(get_error());
+ void OnModuleRehash(User* user, const std::string ¶m) CXX11_OVERRIDE
+ {
+ if (param != "ssl")
return;
- }
-
- certinfo->invalid = (SSL_get_verify_result(session->sess) != X509_V_OK);
- if (!SelfSigned)
+ try
{
- certinfo->unknownsigner = false;
- certinfo->trusted = true;
+ ReadProfiles();
}
- else
+ catch (ModuleException& ex)
{
- certinfo->unknownsigner = true;
- certinfo->trusted = false;
+ ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, ex.GetReason() + " Not applying settings.");
}
+ }
- char buf[512];
- X509_NAME_oneline(X509_get_subject_name(cert), buf, sizeof(buf));
- certinfo->dn = buf;
- // Make sure there are no chars in the string that we consider invalid
- if (certinfo->dn.find_first_of("\r\n") != std::string::npos)
- certinfo->dn.clear();
-
- X509_NAME_oneline(X509_get_issuer_name(cert), buf, sizeof(buf));
- certinfo->issuer = buf;
- if (certinfo->issuer.find_first_of("\r\n") != std::string::npos)
- certinfo->issuer.clear();
+ void OnUserConnect(LocalUser* user) CXX11_OVERRIDE
+ {
+ IOHook* hook = user->eh.GetIOHook();
+ if (hook && hook->prov->creator == this)
+ static_cast<OpenSSLIOHook*>(hook)->TellCiphersAndFingerprint(user);
+ }
- if (!X509_digest(cert, digest, md, &n))
- {
- certinfo->error = "Out of memory generating fingerprint";
- }
- else
+ void OnCleanup(int target_type, void* item) CXX11_OVERRIDE
+ {
+ if (target_type == TYPE_USER)
{
- certinfo->fingerprint = irc::hex(md, n);
- }
+ LocalUser* user = IS_LOCAL((User*)item);
- if ((ASN1_UTCTIME_cmp_time_t(X509_get_notAfter(cert), ServerInstance->Time()) == -1) || (ASN1_UTCTIME_cmp_time_t(X509_get_notBefore(cert), ServerInstance->Time()) == 0))
- {
- certinfo->error = "Not activated, or expired certificate";
+ if (user && user->eh.GetIOHook() && user->eh.GetIOHook()->prov->creator == this)
+ {
+ // User is using SSL, they're a local user, and they're using one of *our* SSL ports.
+ // Potentially there could be multiple SSL modules loaded at once on different ports.
+ ServerInstance->Users->QuitUser(user, "SSL module unloading");
+ }
}
+ }
- X509_free(cert);
+ Version GetVersion() CXX11_OVERRIDE
+ {
+ return Version("Provides SSL support for clients", VF_VENDOR);
}
};
if (param.length() >= 2 && param[1] == ':')
return true;
- if(adding && (channel->bans.size() > static_cast<unsigned>(maxbans)))
+ if (param.find('#') == std::string::npos)
+ return true;
+
+ ListModeBase* banlm = static_cast<ListModeBase*>(*ban);
+ unsigned int maxbans = banlm->GetLimit(channel);
+ ListModeBase::ModeList* list = banlm->GetList(channel);
+ if ((list) && (adding) && (maxbans <= list->size()))
{
- source->WriteNumeric(478, "%s %s :Channel ban list for %s is full (maximum entries for this channel is %ld)", source->nick.c_str(), channel->name.c_str(), channel->name.c_str(), maxbans);
+ source->WriteNumeric(ERR_BANLISTFULL, "%s :Channel ban list for %s is full (maximum entries for this channel is %u)", channel->name.c_str(), channel->name.c_str(), maxbans);
return false;
}
if (!user || !channel || param.empty())
return MOD_RES_PASSTHRU;
- ModeHandler* mh = ServerInstance->Modes->FindMode(mode, MODETYPE_CHANNEL);
+ // If not a prefix mode then we got nothing to do here
- if (!mh || !mh->GetPrefixRank())
++ if (!mh->IsPrefixMode())
+ return MOD_RES_PASSTHRU;
+
User* dest;
if (IS_LOCAL(user))
dest = ServerInstance->FindNickOnly(param);
class ModuleDelayMsg : public Module
{
- private:
DelayMsgMode djm;
++ bool allownotice;
public:
ModuleDelayMsg() : djm(this)
{
}
- void init()
- {
- ServerInstance->Modules->AddService(djm);
- ServerInstance->Modules->AddService(djm.jointime);
- Implementation eventlist[] = { I_OnUserJoin, I_OnUserPreMessage, I_OnRehash };
- ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
- OnRehash(NULL);
- }
- Version GetVersion();
- void OnUserJoin(Membership* memb, bool sync, bool created, CUList&);
- ModResult OnUserPreMessage(User* user, void* dest, int target_type, std::string &text, char status, CUList &exempt_list);
- ModResult OnUserPreNotice(User* user, void* dest, int target_type, std::string& text, char status, CUList& exempt_list);
- void OnRehash(User* user);
+ Version GetVersion() CXX11_OVERRIDE;
+ void OnUserJoin(Membership* memb, bool sync, bool created, CUList&) CXX11_OVERRIDE;
+ ModResult OnUserPreMessage(User* user, void* dest, int target_type, std::string& text, char status, CUList& exempt_list, MessageType msgtype) CXX11_OVERRIDE;
++ void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE;
};
-ModeAction DelayMsgMode::OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding)
+ModeAction DelayMsgMode::OnSet(User* source, Channel* chan, std::string& parameter)
{
- if (adding)
- {
- if ((channel->IsModeSet('d')) && (channel->GetModeParameter('d') == parameter))
- return MODEACTION_DENY;
-
- /* Setting a new limit, sanity check */
- long limit = atoi(parameter.c_str());
-
- /* Wrap low values at 32768 */
- if (limit < 0)
- limit = 0x7FFF;
+ // Setting a new limit, sanity check
+ unsigned int limit = ConvToInt(parameter);
+ if (limit == 0)
+ limit = 1;
- parameter = ConvToStr(limit);
- }
- else
- {
- if (!channel->IsModeSet('d'))
- return MODEACTION_DENY;
-
- /*
- * Clean up metadata
- */
- const UserMembList* names = channel->GetUsers();
- for (UserMembCIter n = names->begin(); n != names->end(); ++n)
- jointime.set(n->second, 0);
- }
- channel->SetModeParam('d', adding ? parameter : "");
+ ext.set(chan, limit);
return MODEACTION_ALLOW;
}
if ((!user) || (!IS_LOCAL(user)))
return MOD_RES_PASSTHRU;
- if ((target_type != TYPE_CHANNEL) || (msgtype != MSG_PRIVMSG))
- if (target_type != TYPE_CHANNEL)
++ if ((target_type != TYPE_CHANNEL) || ((!allownotice) && (msgtype == MSG_NOTICE)))
return MOD_RES_PASSTHRU;
Channel* channel = (Channel*) dest;
return MOD_RES_PASSTHRU;
}
-ModResult ModuleDelayMsg::OnUserPreNotice(User* user, void* dest, int target_type, std::string& text, char status, CUList& exempt_list)
-{
- return OnUserPreMessage(user, dest, target_type, text, status, exempt_list);
-}
-
-void ModuleDelayMsg::OnRehash(User* user)
++void ModuleDelayMsg::ReadConfig(ConfigStatus& status)
+ {
+ ConfigTag* tag = ServerInstance->Config->ConfValue("delaymsg");
- if (tag->getBool("allownotice", true))
- ServerInstance->Modules->Detach(I_OnUserPreNotice, this);
- else
- ServerInstance->Modules->Attach(I_OnUserPreNotice, this);
++ allownotice = tag->getBool("allownotice", true);
+ }
+
MODULE_INIT(ModuleDelayMsg)
-
lwbNickHandler myhandler;
std::string charset, casemapping;
unsigned char m_additional[256], m_additionalUp[256], m_lower[256], m_upper[256];
- caller2<bool, const char*, size_t> rememberer;
+ caller1<bool, const std::string&> rememberer;
bool forcequit;
const unsigned char * lowermap_rememberer;
- ServerInstance->RehashUsersAndChans();
+ unsigned char prev_map[256];
+
++ template <typename T>
++ void RehashHashmap(T& hashmap)
++ {
++ T newhash(hashmap.bucket_count());
++ for (typename T::const_iterator i = hashmap.begin(); i != hashmap.end(); ++i)
++ newhash.insert(std::make_pair(i->first, i->second));
++ hashmap.swap(newhash);
++ }
++
+ void CheckRehash()
+ {
+ // See if anything changed
+ if (!memcmp(prev_map, national_case_insensitive_map, sizeof(prev_map)))
+ return;
+
+ memcpy(prev_map, national_case_insensitive_map, sizeof(prev_map));
+
-
- // Send a Request to m_spanningtree asking it to rebuild its hashmaps
- mod = ServerInstance->Modules->Find("m_spanningtree.so");
- if (mod)
- {
- Request req(this, mod, "rehash");
- req.Send();
- }
++ RehashHashmap(ServerInstance->Users.clientlist);
++ RehashHashmap(ServerInstance->Users.uuidlist);
++ RehashHashmap(ServerInstance->chanlist);
+
+ // The OnGarbageCollect() method in m_watch rebuilds the hashmap used by it
+ Module* mod = ServerInstance->Modules->Find("m_watch.so");
+ if (mod)
+ mod->OnGarbageCollect();
+ }
public:
ModuleNationalChars()
: rememberer(ServerInstance->IsNick), lowermap_rememberer(national_case_insensitive_map)
{
+ memcpy(prev_map, national_case_insensitive_map, sizeof(prev_map));
}
- void init()
+ void init() CXX11_OVERRIDE
{
memcpy(m_lower, rfc_case_insensitive_map, 256);
national_case_insensitive_map = m_lower;
ServerInstance->IsNick = rememberer;
national_case_insensitive_map = lowermap_rememberer;
CheckForceQuit("National characters module unloaded");
+ CheckRehash();
}
- virtual Version GetVersion()
+ Version GetVersion() CXX11_OVERRIDE
{
return Version("Provides an ability to have non-RFC1459 nicks & support for national CASEMAPPING", VF_VENDOR | VF_COMMON, charset);
}
ServerState LinkState; /* Link state */
CapabData* capab; /* Link setup data (held until burst is sent) */
TreeServer* MyRoot; /* The server we are talking to */
- time_t NextPing; /* Time when we are due to ping this server */
- bool LastPingWasGood; /* Responded to last ping we sent? */
int proto_version; /* Remote protocol version */
- bool ConnectionFailureShown; /* Set to true if a connection failure message was shown */
+
+ /** True if we've sent our burst.
+ * This only changes the behavior of message translation for 1202 protocol servers and it can be
+ * removed once 1202 support is dropped.
+ */
+ bool burstsent;
/** Checks if the given servername and sid are both free
*/
#ifdef _WIN32
SetServiceStopped(status);
#endif
- if (this)
- {
- this->SendError("Exiting with status " + ConvToStr(status) + " (" + std::string(ExitCodes[status]) + ")");
- this->Cleanup();
- ServerInstance = NULL;
- delete this;
- }
+ this->SendError("Exiting with status " + ConvToStr(status) + " (" + std::string(ExitCodes[status]) + ")");
+ this->Cleanup();
- delete this;
+ ServerInstance = NULL;
++ delete this;
exit (status);
}
projects / user / henk / code / inspircd.git / commitdiff