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author | Loïc Blot <nerzhul@users.noreply.github.com> | 2017-08-16 23:48:29 +0200 |
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committer | SmallJoker <mk939@ymail.com> | 2018-06-03 17:31:59 +0200 |
commit | 151c19a6be591d19d83cdd3c69583e7bf0828440 (patch) | |
tree | 37470c00d6cb1472aff14cb86fe3bf53c13d7439 /src | |
parent | 9d40d89d2721359b02c578366ebfd0ef1b91116d (diff) | |
download | minetest-151c19a6be591d19d83cdd3c69583e7bf0828440.tar.gz minetest-151c19a6be591d19d83cdd3c69583e7bf0828440.tar.bz2 minetest-151c19a6be591d19d83cdd3c69583e7bf0828440.zip |
ClientInterface: add a function to verify (correctly) if user limit was reached (#6258)
* ClientInterface: add a function to verify (correctly) if user limit was reached
CS_HelloSent is a better indicator of active slots than CS_Created, which are session objects created after init packet reception
Switch existing checks to ClientInterface::isUserLimitReached()
Use range-based for loop for getClientIds() used function too
This will fix #6254 (not the memory overhead if init is flooded)
Diffstat (limited to 'src')
-rw-r--r-- | src/clientiface.cpp | 10 | ||||
-rw-r--r-- | src/clientiface.h | 4 | ||||
-rw-r--r-- | src/network/serverpackethandler.cpp | 4 |
3 files changed, 15 insertions, 3 deletions
diff --git a/src/clientiface.cpp b/src/clientiface.cpp index 68bd4afe7..475397279 100644 --- a/src/clientiface.cpp +++ b/src/clientiface.cpp @@ -633,6 +633,16 @@ std::vector<u16> ClientInterface::getClientIDs(ClientState min_state) return reply; } +/** + * Verify if user limit was reached. + * User limit count all clients from HelloSent state (MT protocol user) to Active state + * @return true if user limit was reached + */ +bool ClientInterface::isUserLimitReached() +{ + return getClientIDs(CS_HelloSent).size() >= g_settings->getU16("max_users"); +} + void ClientInterface::step(float dtime) { m_print_info_timer += dtime; diff --git a/src/clientiface.h b/src/clientiface.h index d2299c879..6e7429309 100644 --- a/src/clientiface.h +++ b/src/clientiface.h @@ -449,6 +449,9 @@ public: /* get list of active client id's */ std::vector<u16> getClientIDs(ClientState min_state=CS_Active); + /* verify is server user limit was reached */ + bool isUserLimitReached(); + /* get list of client player names */ const std::vector<std::string> &getPlayerNames() const { return m_clients_names; } @@ -493,7 +496,6 @@ public: } static std::string state2Name(ClientState state); - protected: //TODO find way to avoid this functions void lock() { m_clients_mutex.lock(); } diff --git a/src/network/serverpackethandler.cpp b/src/network/serverpackethandler.cpp index 5b026bbdb..22456f487 100644 --- a/src/network/serverpackethandler.cpp +++ b/src/network/serverpackethandler.cpp @@ -211,7 +211,7 @@ void Server::handleCommand_Init(NetworkPacket* pkt) // Enforce user limit. // Don't enforce for users that have some admin right - if (m_clients.getClientIDs(CS_Created).size() >= g_settings->getU16("max_users") && + if (m_clients.isUserLimitReached() && !checkPriv(playername, "server") && !checkPriv(playername, "ban") && !checkPriv(playername, "privs") && @@ -520,7 +520,7 @@ void Server::handleCommand_Init_Legacy(NetworkPacket* pkt) // Enforce user limit. // Don't enforce for users that have some admin right - if (m_clients.getClientIDs(CS_Created).size() >= g_settings->getU16("max_users") && + if (m_clients.isUserLimitReached() >= g_settings->getU16("max_users") && !checkPriv(playername, "server") && !checkPriv(playername, "ban") && !checkPriv(playername, "privs") && |