X-Git-Url: https://git.stg.codes/stg.git/blobdiff_plain/f7163d9c994af13f0f72f49f7203b7ac3e281a1e..ebd170a764ab9660adee464588cda1801c7986b4:/projects/stargazer/plugins/other/radius/radius.cpp diff --git a/projects/stargazer/plugins/other/radius/radius.cpp b/projects/stargazer/plugins/other/radius/radius.cpp index 1dfff791..3ec0f705 100644 --- a/projects/stargazer/plugins/other/radius/radius.cpp +++ b/projects/stargazer/plugins/other/radius/radius.cpp @@ -1,648 +1,19 @@ -/* - * This program 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; either version 2 of the License, or - * (at your option) any later version. - * - * 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, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -/* - * Author : Maxim Mamontov - */ - -/* - * This file contains a realization of radius data access plugin for Stargazer - * - * $Revision: 1.14 $ - * $Date: 2009/12/13 14:17:13 $ - * - */ - -#include -#include -#include - -#include "stg/store.h" -#include "stg/common.h" -#include "stg/user_conf.h" -#include "stg/user_property.h" -#include "stg/plugin_creator.h" #include "radius.h" -extern volatile const time_t stgTime; - -void InitEncrypt(BLOWFISH_CTX * ctx, const std::string & password); -void Decrypt(BLOWFISH_CTX * ctx, char * dst, const char * src, int len8); -void Encrypt(BLOWFISH_CTX * ctx, char * dst, const char * src, int len8); - -//----------------------------------------------------------------------------- -//----------------------------------------------------------------------------- -//----------------------------------------------------------------------------- -PLUGIN_CREATOR radc; -//----------------------------------------------------------------------------- -//----------------------------------------------------------------------------- -//----------------------------------------------------------------------------- -PLUGIN * GetPlugin() -{ -return radc.GetPlugin(); -} -//----------------------------------------------------------------------------- -//----------------------------------------------------------------------------- -//----------------------------------------------------------------------------- -int RAD_SETTINGS::ParseServices(const std::vector & str, std::list * lst) -{ -std::copy(str.begin(), str.end(), std::back_inserter(*lst)); -std::list::iterator it(std::find(lst->begin(), - lst->end(), - "empty")); -if (it != lst->end()) - *it = ""; - -return 0; -} -//----------------------------------------------------------------------------- -int RAD_SETTINGS::ParseSettings(const MODULE_SETTINGS & s) -{ -int p; -PARAM_VALUE pv; -std::vector::const_iterator pvi; -/////////////////////////// -pv.param = "Port"; -pvi = std::find(s.moduleParams.begin(), s.moduleParams.end(), pv); -if (pvi == s.moduleParams.end()) - { - errorStr = "Parameter \'Port\' not found."; - printfd(__FILE__, "Parameter 'Port' not found\n"); - return -1; - } -if (ParseIntInRange(pvi->value[0], 2, 65535, &p)) - { - errorStr = "Cannot parse parameter \'Port\': " + errorStr; - printfd(__FILE__, "Cannot parse parameter 'Port'\n"); - return -1; - } -port = p; -/////////////////////////// -pv.param = "Password"; -pvi = std::find(s.moduleParams.begin(), s.moduleParams.end(), pv); -if (pvi == s.moduleParams.end()) - { - errorStr = "Parameter \'Password\' not found."; - printfd(__FILE__, "Parameter 'Password' not found\n"); - return -1; - } -password = pvi->value[0]; -/////////////////////////// -pv.param = "AuthServices"; -pvi = std::find(s.moduleParams.begin(), s.moduleParams.end(), pv); -if (pvi != s.moduleParams.end()) - { - ParseServices(pvi->value, &authServices); - } -/////////////////////////// -pv.param = "AcctServices"; -pvi = std::find(s.moduleParams.begin(), s.moduleParams.end(), pv); -if (pvi != s.moduleParams.end()) - { - ParseServices(pvi->value, &acctServices); - } - -return 0; -} -//----------------------------------------------------------------------------- -//----------------------------------------------------------------------------- -//----------------------------------------------------------------------------- -RADIUS::RADIUS() - : nonstop(false), - isRunning(false), - users(NULL), - stgSettings(NULL), - store(NULL), - sock(-1) -{ -InitEncrypt(&ctx, ""); -} -//----------------------------------------------------------------------------- -void RADIUS::SetUsers(USERS * u) -{ -users = u; -} -//----------------------------------------------------------------------------- -void RADIUS::SetStgSettings(const SETTINGS * s) -{ -stgSettings = s; -} -//----------------------------------------------------------------------------- -void RADIUS::SetSettings(const MODULE_SETTINGS & s) -{ -settings = s; -} -//----------------------------------------------------------------------------- -void RADIUS::SetStore(STORE * s) -{ -store = s; -} -//----------------------------------------------------------------------------- -int RADIUS::ParseSettings() -{ -int ret = radSettings.ParseSettings(settings); -if (ret) - errorStr = radSettings.GetStrError(); -return ret; -} -//----------------------------------------------------------------------------- -bool RADIUS::IsRunning() -{ -return isRunning; -} -//----------------------------------------------------------------------------- -const std::string RADIUS::GetVersion() const -{ -return "RADIUS data access plugin v 0.6"; -} -//----------------------------------------------------------------------------- -uint16_t RADIUS::GetStartPosition() const -{ -// Start before any authorizers!!! -return 20; -} -//----------------------------------------------------------------------------- -uint16_t RADIUS::GetStopPosition() const -{ -return 20; -} -//----------------------------------------------------------------------------- -int RADIUS::PrepareNet() -{ -sock = socket(AF_INET, SOCK_DGRAM, 0); - -if (sock < 0) - { - errorStr = "Cannot create socket."; - printfd(__FILE__, "Cannot create socket\n"); - return -1; - } - -struct sockaddr_in inAddr; -inAddr.sin_family = AF_INET; -inAddr.sin_port = htons(radSettings.GetPort()); -inAddr.sin_addr.s_addr = inet_addr("0.0.0.0"); - -if (bind(sock, (struct sockaddr*)&inAddr, sizeof(inAddr)) < 0) - { - errorStr = "RADIUS: Bind failed."; - printfd(__FILE__, "Cannot bind socket\n"); - return -1; - } - -return 0; -} -//----------------------------------------------------------------------------- -int RADIUS::FinalizeNet() -{ -close(sock); -return 0; -} -//----------------------------------------------------------------------------- -int RADIUS::Start() -{ -std::string password(radSettings.GetPassword()); - -authServices = radSettings.GetAuthServices(); -acctServices = radSettings.GetAcctServices(); - -InitEncrypt(&ctx, password); - -nonstop = true; - -if (PrepareNet()) - { - return -1; - } - -if (!isRunning) - { - if (pthread_create(&thread, NULL, Run, this)) - { - errorStr = "Cannot create thread."; - printfd(__FILE__, "Cannot create thread\n"); - return -1; - } - } - -errorStr = ""; -return 0; -} -//----------------------------------------------------------------------------- -int RADIUS::Stop() -{ -if (!IsRunning()) - return 0; - -nonstop = false; - -std::map::iterator it; -for (it = sessions.begin(); it != sessions.end(); ++it) - { - USER_PTR ui; - if (users->FindByName(it->second.userName, &ui)) - { - ui->Unauthorize(this); - } - } -sessions.erase(sessions.begin(), sessions.end()); - -FinalizeNet(); - -if (isRunning) - { - //5 seconds to thread stops itself - for (int i = 0; i < 25 && isRunning; i++) - { - usleep(200000); - } - - //after 5 seconds waiting thread still running. now killing it - if (isRunning) - { - if (pthread_kill(thread, SIGINT)) - { - errorStr = "Cannot kill thread."; - printfd(__FILE__, "Cannot kill thread\n"); - return -1; - } - printfd(__FILE__, "RADIUS::Stop killed Run\n"); - } - } - -return 0; -} -//----------------------------------------------------------------------------- -void * RADIUS::Run(void * d) -{ -RADIUS * rad = (RADIUS *)d; -RAD_PACKET packet; - -rad->isRunning = true; - -while (rad->nonstop) - { - if (!rad->WaitPackets(rad->sock)) - { - continue; - } - struct sockaddr_in outerAddr; - if (rad->RecvData(&packet, &outerAddr)) - { - printfd(__FILE__, "RADIUS::Run Error on RecvData\n"); - } - else - { - if (rad->ProcessData(&packet)) - { - packet.packetType = RAD_REJECT_PACKET; - } - rad->Send(packet, &outerAddr); - } - } - -rad->isRunning = false; - -return NULL; -} -//----------------------------------------------------------------------------- -int RADIUS::RecvData(RAD_PACKET * packet, struct sockaddr_in * outerAddr) -{ - int8_t buf[RAD_MAX_PACKET_LEN]; - socklen_t outerAddrLen = sizeof(struct sockaddr_in); - int dataLen = recvfrom(sock, buf, RAD_MAX_PACKET_LEN, 0, reinterpret_cast(outerAddr), &outerAddrLen); - if (dataLen > 0) { - Decrypt(&ctx, (char *)packet, (const char *)buf, dataLen / 8); - } - if (strncmp((char *)packet->magic, RAD_ID, RAD_MAGIC_LEN)) - { - printfd(__FILE__, "RADIUS::RecvData Error magic. Wanted: '%s', got: '%s'\n", RAD_ID, packet->magic); - return -1; - } - return 0; -} -//----------------------------------------------------------------------------- -int RADIUS::Send(const RAD_PACKET & packet, struct sockaddr_in * outerAddr) -{ -size_t len = sizeof(RAD_PACKET); -char buf[1032]; - -Encrypt(&ctx, buf, (char *)&packet, len / 8); -return sendto(sock, buf, len, 0, reinterpret_cast(outerAddr), sizeof(struct sockaddr_in)); -} -//----------------------------------------------------------------------------- -int RADIUS::ProcessData(RAD_PACKET * packet) -{ -if (strncmp((const char *)packet->protoVer, "01", 2)) - { - printfd(__FILE__, "RADIUS::ProcessData packet.protoVer incorrect\n"); - return -1; - } -switch (packet->packetType) - { - case RAD_AUTZ_PACKET: - return ProcessAutzPacket(packet); - case RAD_AUTH_PACKET: - return ProcessAuthPacket(packet); - case RAD_POST_AUTH_PACKET: - return ProcessPostAuthPacket(packet); - case RAD_ACCT_START_PACKET: - return ProcessAcctStartPacket(packet); - case RAD_ACCT_STOP_PACKET: - return ProcessAcctStopPacket(packet); - case RAD_ACCT_UPDATE_PACKET: - return ProcessAcctUpdatePacket(packet); - case RAD_ACCT_OTHER_PACKET: - return ProcessAcctOtherPacket(packet); - default: - printfd(__FILE__, "RADIUS::ProcessData Unsupported packet type: %d\n", packet->packetType); - return -1; - }; -return 0; -} -//----------------------------------------------------------------------------- -int RADIUS::ProcessAutzPacket(RAD_PACKET * packet) -{ -USER_CONF conf; - -if (!IsAllowedService((char *)packet->service)) - { - printfd(__FILE__, "RADIUS::ProcessAutzPacket service '%s' is not allowed to authorize\n", packet->service); - packet->packetType = RAD_REJECT_PACKET; - return 0; - } - -if (store->RestoreUserConf(&conf, (char *)packet->login)) - { - packet->packetType = RAD_REJECT_PACKET; - printfd(__FILE__, "RADIUS::ProcessAutzPacket cannot restore conf for user '%s'\n", packet->login); - return 0; - } +using STG::RADIUS; -// At this point service can be authorized at least -// So we send a plain-text password - -packet->packetType = RAD_ACCEPT_PACKET; -strncpy((char *)packet->password, conf.password.c_str(), RAD_PASSWORD_LEN); - -return 0; -} -//----------------------------------------------------------------------------- -int RADIUS::ProcessAuthPacket(RAD_PACKET * packet) +extern "C" STG::Plugin* GetPlugin() { -USER_PTR ui; - -if (!CanAcctService((char *)packet->service)) - { - - // There are no sense to check for allowed service - // It has allready checked at previous stage (authorization) - - printfd(__FILE__, "RADIUS::ProcessAuthPacket service '%s' neednot stargazer authentication\n", (char *)packet->service); - packet->packetType = RAD_ACCEPT_PACKET; - return 0; - } - -// At this point we have an accountable service -// All other services got a password if allowed or rejected - -if (!FindUser(&ui, (char *)packet->login)) - { - packet->packetType = RAD_REJECT_PACKET; - printfd(__FILE__, "RADIUS::ProcessAuthPacket user '%s' not found\n", (char *)packet->login); - return 0; - } - -if (ui->IsInetable()) - { - packet->packetType = RAD_ACCEPT_PACKET; - } -else - { - packet->packetType = RAD_REJECT_PACKET; - } - -packet->packetType = RAD_ACCEPT_PACKET; -return 0; -} -//----------------------------------------------------------------------------- -int RADIUS::ProcessPostAuthPacket(RAD_PACKET * packet) -{ -USER_PTR ui; - -if (!CanAcctService((char *)packet->service)) - { - - // There are no sense to check for allowed service - // It has allready checked at previous stage (authorization) - - packet->packetType = RAD_ACCEPT_PACKET; - return 0; - } - -if (!FindUser(&ui, (char *)packet->login)) - { - packet->packetType = RAD_REJECT_PACKET; - printfd(__FILE__, "RADIUS::ProcessPostAuthPacket user '%s' not found\n", (char *)packet->login); - return 0; - } - -// I think that only Framed-User services has sense to be accountable -// So we have to supply a Framed-IP - -USER_IPS ips = ui->GetProperty().ips; -packet->packetType = RAD_ACCEPT_PACKET; - -// Additional checking for Framed-User service - -if (!strncmp((char *)packet->service, "Framed-User", RAD_SERVICE_LEN)) - packet->ip = ips[0].ip; -else - packet->ip = 0; - -return 0; -} -//----------------------------------------------------------------------------- -int RADIUS::ProcessAcctStartPacket(RAD_PACKET * packet) -{ -USER_PTR ui; - -if (!FindUser(&ui, (char *)packet->login)) - { - packet->packetType = RAD_REJECT_PACKET; - printfd(__FILE__, "RADIUS::ProcessAcctStartPacket user '%s' not found\n", (char *)packet->login); - return 0; - } - -// At this point we have to unauthorize user only if it is an accountable service - -if (CanAcctService((char *)packet->service)) - { - if (sessions.find((const char *)packet->sessid) != sessions.end()) - { - printfd(__FILE__, "RADIUS::ProcessAcctStartPacket session already started!\n"); - packet->packetType = RAD_REJECT_PACKET; - return -1; - } - USER_IPS ips = ui->GetProperty().ips; - if (ui->Authorize(ips[0].ip, 0xffFFffFF, this)) - { - printfd(__FILE__, "RADIUS::ProcessAcctStartPacket cannot authorize user '%s'\n", packet->login); - packet->packetType = RAD_REJECT_PACKET; - return -1; - } - sessions[(const char *)packet->sessid].userName = (const char *)packet->login; - sessions[(const char *)packet->sessid].serviceType = (const char *)packet->service; - for_each(sessions.begin(), sessions.end(), SPrinter()); - } -else - { - printfd(__FILE__, "RADIUS::ProcessAcctStartPacket service '%s' can not be accounted\n", (char *)packet->service); - } - -packet->packetType = RAD_ACCEPT_PACKET; -return 0; + static RADIUS plugin; + return &plugin; } -//----------------------------------------------------------------------------- -int RADIUS::ProcessAcctStopPacket(RAD_PACKET * packet) -{ -std::map::iterator sid; - -if ((sid = sessions.find((const char *)packet->sessid)) == sessions.end()) - { - printfd(__FILE__, "RADIUS::ProcessAcctStopPacket session had not started yet\n"); - packet->packetType = RAD_REJECT_PACKET; - return -1; - } - -USER_PTR ui; - -if (!FindUser(&ui, sid->second.userName)) - { - packet->packetType = RAD_REJECT_PACKET; - printfd(__FILE__, "RADIUS::ProcessPostAuthPacket user '%s' not found\n", sid->second.userName.c_str()); - return 0; - } - -sessions.erase(sid); - -ui->Unauthorize(this); -packet->packetType = RAD_ACCEPT_PACKET; -return 0; -} -//----------------------------------------------------------------------------- -int RADIUS::ProcessAcctUpdatePacket(RAD_PACKET * packet) -{ -// Fake. May be use it later -packet->packetType = RAD_ACCEPT_PACKET; -return 0; -} -//----------------------------------------------------------------------------- -int RADIUS::ProcessAcctOtherPacket(RAD_PACKET * packet) -{ -// Fake. May be use it later -packet->packetType = RAD_ACCEPT_PACKET; -return 0; -} -//----------------------------------------------------------------------------- -void RADIUS::PrintServices(const std::list & svcs) -{ -for_each(svcs.begin(), svcs.end(), Printer()); -} -//----------------------------------------------------------------------------- -bool RADIUS::FindUser(USER_PTR * ui, const std::string & login) const +std::string RADIUS::GetVersion() const { -if (users->FindByName(login, ui)) - { - return false; - } -return true; + return "Radius v.1.0"; } -//----------------------------------------------------------------------------- -bool RADIUS::CanAuthService(const std::string & svc) const -{ -return find(authServices.begin(), authServices.end(), svc) != authServices.end(); -} -//----------------------------------------------------------------------------- -bool RADIUS::CanAcctService(const std::string & svc) const -{ -return find(acctServices.begin(), acctServices.end(), svc) != acctServices.end(); -} -//----------------------------------------------------------------------------- -bool RADIUS::IsAllowedService(const std::string & svc) const -{ -return CanAuthService(svc) || CanAcctService(svc); -} -//----------------------------------------------------------------------------- -bool RADIUS::WaitPackets(int sd) const -{ -fd_set rfds; -FD_ZERO(&rfds); -FD_SET(sd, &rfds); - -struct timeval tv; -tv.tv_sec = 0; -tv.tv_usec = 500000; - -int res = select(sd + 1, &rfds, NULL, NULL, &tv); -if (res == -1) // Error - { - if (errno != EINTR) - { - printfd(__FILE__, "Error on select: '%s'\n", strerror(errno)); - } - return false; - } -if (res == 0) // Timeout - { - return false; - } - -return true; -} -//----------------------------------------------------------------------------- -inline -void InitEncrypt(BLOWFISH_CTX * ctx, const std::string & password) -{ -unsigned char keyL[RAD_PASSWORD_LEN]; // Пароль для шифровки -memset(keyL, 0, RAD_PASSWORD_LEN); -strncpy((char *)keyL, password.c_str(), RAD_PASSWORD_LEN); -Blowfish_Init(ctx, keyL, RAD_PASSWORD_LEN); -} -//----------------------------------------------------------------------------- -inline -void Encrypt(BLOWFISH_CTX * ctx, char * dst, const char * src, int len8) +RADIUS::RADIUS() { -// len8 - длина в 8-ми байтовых блоках -if (dst != src) - memcpy(dst, src, len8 * 8); - -for (int i = 0; i < len8; i++) - Blowfish_Encrypt(ctx, (uint32_t *)(dst + i*8), (uint32_t *)(dst + i*8 + 4)); } -//----------------------------------------------------------------------------- -inline -void Decrypt(BLOWFISH_CTX * ctx, char * dst, const char * src, int len8) -{ -// len8 - длина в 8-ми байтовых блоках -if (dst != src) - memcpy(dst, src, len8 * 8); -for (int i = 0; i < len8; i++) - Blowfish_Decrypt(ctx, (uint32_t *)(dst + i*8), (uint32_t *)(dst + i*8 + 4)); -}