mirror of
https://github.com/OpenVPN/openvpn.git
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aaf7297467
Version 2.1.1i git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@5668 e7ae566f-a301-0410-adde-c780ea21d3b5
3161 lines
76 KiB
C
3161 lines
76 KiB
C
/*
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* OpenVPN -- An application to securely tunnel IP networks
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* over a single TCP/UDP port, with support for SSL/TLS-based
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* session authentication and key exchange,
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* packet encryption, packet authentication, and
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* packet compression.
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*
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* Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program (see the file COPYING included with this
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* distribution); if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "syshead.h"
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#ifdef ENABLE_MANAGEMENT
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#include "error.h"
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#include "fdmisc.h"
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#include "options.h"
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#include "sig.h"
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#include "event.h"
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#include "otime.h"
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#include "integer.h"
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#include "misc.h"
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#include "ssl.h"
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#include "common.h"
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#include "manage.h"
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#include "memdbg.h"
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#ifdef ENABLE_PKCS11
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#include "pkcs11.h"
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#endif
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#define MANAGEMENT_ECHO_PULL_INFO 0
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#if MANAGEMENT_ECHO_PULL_INFO
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#define MANAGEMENT_ECHO_FLAGS LOG_PRINT_INTVAL
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#else
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#define MANAGEMENT_ECHO_FLAGS 0
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#endif
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/* tag for blank username/password */
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static const char blank_up[] = "[[BLANK]]";
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struct management *management; /* GLOBAL */
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/* static forward declarations */
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static void man_output_standalone (struct management *man, volatile int *signal_received);
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static void man_reset_client_socket (struct management *man, const bool exiting);
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static void
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man_help ()
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{
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msg (M_CLIENT, "Management Interface for %s", title_string);
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msg (M_CLIENT, "Commands:");
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msg (M_CLIENT, "auth-retry t : Auth failure retry mode (none,interact,nointeract).");
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msg (M_CLIENT, "bytecount n : Show bytes in/out, update every n secs (0=off).");
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msg (M_CLIENT, "echo [on|off] [N|all] : Like log, but only show messages in echo buffer.");
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msg (M_CLIENT, "exit|quit : Close management session.");
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msg (M_CLIENT, "forget-passwords : Forget passwords entered so far.");
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msg (M_CLIENT, "help : Print this message.");
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msg (M_CLIENT, "hold [on|off|release] : Set/show hold flag to on/off state, or");
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msg (M_CLIENT, " release current hold and start tunnel.");
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msg (M_CLIENT, "kill cn : Kill the client instance(s) having common name cn.");
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msg (M_CLIENT, "kill IP:port : Kill the client instance connecting from IP:port.");
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msg (M_CLIENT, "load-stats : Show global server load stats.");
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msg (M_CLIENT, "log [on|off] [N|all] : Turn on/off realtime log display");
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msg (M_CLIENT, " + show last N lines or 'all' for entire history.");
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msg (M_CLIENT, "mute [n] : Set log mute level to n, or show level if n is absent.");
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msg (M_CLIENT, "needok type action : Enter confirmation for NEED-OK request of 'type',");
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msg (M_CLIENT, " where action = 'ok' or 'cancel'.");
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msg (M_CLIENT, "needstr type action : Enter confirmation for NEED-STR request of 'type',");
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msg (M_CLIENT, " where action is reply string.");
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msg (M_CLIENT, "net : (Windows only) Show network info and routing table.");
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msg (M_CLIENT, "password type p : Enter password p for a queried OpenVPN password.");
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msg (M_CLIENT, "pid : Show process ID of the current OpenVPN process.");
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#ifdef ENABLE_PKCS11
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msg (M_CLIENT, "pkcs11-id-count : Get number of available PKCS#11 identities.");
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msg (M_CLIENT, "pkcs11-id-get index : Get PKCS#11 identity at index.");
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#endif
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#ifdef MANAGEMENT_DEF_AUTH
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msg (M_CLIENT, "client-auth CID KID : Authenticate client-id/key-id CID/KID (MULTILINE)");
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msg (M_CLIENT, "client-auth-nt CID KID : Authenticate client-id/key-id CID/KID");
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msg (M_CLIENT, "client-deny CID KID R [CR] : Deny auth client-id/key-id CID/KID with log reason");
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msg (M_CLIENT, " text R and optional client reason text CR");
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msg (M_CLIENT, "client-kill CID : Kill client instance CID");
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msg (M_CLIENT, "env-filter [level] : Set env-var filter level");
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#ifdef MANAGEMENT_PF
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msg (M_CLIENT, "client-pf CID : Define packet filter for client CID (MULTILINE)");
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#endif
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#endif
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msg (M_CLIENT, "signal s : Send signal s to daemon,");
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msg (M_CLIENT, " s = SIGHUP|SIGTERM|SIGUSR1|SIGUSR2.");
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msg (M_CLIENT, "state [on|off] [N|all] : Like log, but show state history.");
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msg (M_CLIENT, "status [n] : Show current daemon status info using format #n.");
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msg (M_CLIENT, "test n : Produce n lines of output for testing/debugging.");
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msg (M_CLIENT, "username type u : Enter username u for a queried OpenVPN username.");
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msg (M_CLIENT, "verb [n] : Set log verbosity level to n, or show if n is absent.");
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msg (M_CLIENT, "version : Show current version number.");
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#if HTTP_PROXY_FALLBACK
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msg (M_CLIENT, "http-proxy-fallback <server> <port> [flags] : Enter dynamic HTTP proxy fallback info.");
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msg (M_CLIENT, "http-proxy-fallback-disable : Disable HTTP proxy fallback.");
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#endif
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msg (M_CLIENT, "END");
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}
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static const char *
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man_state_name (const int state)
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{
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switch (state)
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{
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case OPENVPN_STATE_INITIAL:
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return "INITIAL";
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case OPENVPN_STATE_CONNECTING:
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return "CONNECTING";
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case OPENVPN_STATE_WAIT:
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return "WAIT";
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case OPENVPN_STATE_AUTH:
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return "AUTH";
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case OPENVPN_STATE_GET_CONFIG:
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return "GET_CONFIG";
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case OPENVPN_STATE_ASSIGN_IP:
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return "ASSIGN_IP";
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case OPENVPN_STATE_ADD_ROUTES:
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return "ADD_ROUTES";
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case OPENVPN_STATE_CONNECTED:
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return "CONNECTED";
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case OPENVPN_STATE_RECONNECTING:
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return "RECONNECTING";
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case OPENVPN_STATE_EXITING:
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return "EXITING";
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case OPENVPN_STATE_RESOLVE:
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return "RESOLVE";
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case OPENVPN_STATE_TCP_CONNECT:
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return "TCP_CONNECT";
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default:
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return "?";
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}
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}
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static void
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man_welcome (struct management *man)
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{
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msg (M_CLIENT, ">INFO:OpenVPN Management Interface Version %d -- type 'help' for more info",
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MANAGEMENT_VERSION);
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if (man->persist.special_state_msg)
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msg (M_CLIENT, "%s", man->persist.special_state_msg);
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}
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static inline bool
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man_password_needed (struct management *man)
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{
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return man->settings.up.defined && !man->connection.password_verified;
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}
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static void
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man_check_password (struct management *man, const char *line)
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{
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if (man_password_needed (man))
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{
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if (streq (line, man->settings.up.password))
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{
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man->connection.password_verified = true;
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msg (M_CLIENT, "SUCCESS: password is correct");
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man_welcome (man);
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}
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else
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{
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man->connection.password_verified = false;
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msg (M_CLIENT, "ERROR: bad password");
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if (++man->connection.password_tries >= MANAGEMENT_N_PASSWORD_RETRIES)
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{
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msg (M_WARN, "MAN: client connection rejected after %d failed password attempts",
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MANAGEMENT_N_PASSWORD_RETRIES);
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man->connection.halt = true;
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}
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}
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}
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}
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static void
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man_update_io_state (struct management *man)
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{
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if (socket_defined (man->connection.sd_cli))
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{
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if (buffer_list_defined (man->connection.out))
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{
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man->connection.state = MS_CC_WAIT_WRITE;
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}
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else
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{
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man->connection.state = MS_CC_WAIT_READ;
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}
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}
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}
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static void
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man_output_list_push_finalize (struct management *man)
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{
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if (management_connected (man))
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{
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man_update_io_state (man);
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if (!man->persist.standalone_disabled)
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{
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volatile int signal_received = 0;
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man_output_standalone (man, &signal_received);
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}
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}
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}
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static void
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man_output_list_push_str (struct management *man, const char *str)
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{
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if (management_connected (man) && str)
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{
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buffer_list_push (man->connection.out, (const unsigned char *) str);
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}
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}
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static void
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man_output_list_push (struct management *man, const char *str)
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{
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man_output_list_push_str (man, str);
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man_output_list_push_finalize (man);
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}
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static void
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man_prompt (struct management *man)
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{
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if (man_password_needed (man))
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man_output_list_push (man, "ENTER PASSWORD:");
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#if 0 /* should we use prompt? */
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else
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man_output_list_push (man, ">");
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#endif
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}
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static void
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man_delete_unix_socket (struct management *man)
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{
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#if UNIX_SOCK_SUPPORT
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if ((man->settings.flags & (MF_UNIX_SOCK|MF_CONNECT_AS_CLIENT)) == MF_UNIX_SOCK)
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socket_delete_unix (&man->settings.local_unix);
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#endif
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}
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static void
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man_close_socket (struct management *man, const socket_descriptor_t sd)
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{
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#ifndef WIN32
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/*
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* Windows doesn't need this because the ne32 event is permanently
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* enabled at struct management scope.
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*/
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if (man->persist.callback.delete_event)
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(*man->persist.callback.delete_event) (man->persist.callback.arg, sd);
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#endif
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openvpn_close_socket (sd);
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}
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static void
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virtual_output_callback_func (void *arg, const unsigned int flags, const char *str)
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{
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struct management *man = (struct management *) arg;
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static int recursive_level = 0; /* GLOBAL */
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bool did_push = false;
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if (!recursive_level) /* don't allow recursion */
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{
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struct gc_arena gc = gc_new ();
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struct log_entry e;
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const char *out = NULL;
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++recursive_level;
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CLEAR (e);
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update_time ();
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e.timestamp = now;
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e.u.msg_flags = flags;
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e.string = str;
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if (flags & M_FATAL)
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man->persist.standalone_disabled = false;
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if (flags != M_CLIENT)
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log_history_add (man->persist.log, &e);
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if (!man_password_needed (man))
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{
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if (flags == M_CLIENT)
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out = log_entry_print (&e, LOG_PRINT_CRLF, &gc);
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else if (man->connection.log_realtime)
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out = log_entry_print (&e, LOG_PRINT_INT_DATE
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| LOG_PRINT_MSG_FLAGS
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| LOG_PRINT_LOG_PREFIX
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| LOG_PRINT_CRLF, &gc);
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if (out)
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{
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man_output_list_push_str (man, out);
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did_push = true;
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}
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if (flags & M_FATAL)
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{
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out = log_entry_print (&e, LOG_FATAL_NOTIFY|LOG_PRINT_CRLF, &gc);
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if (out)
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{
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man_output_list_push_str (man, out);
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did_push = true;
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man_reset_client_socket (man, true);
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}
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}
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}
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--recursive_level;
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gc_free (&gc);
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}
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if (did_push)
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man_output_list_push_finalize (man);
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}
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/*
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* Given a signal, return the signal with possible remapping applied,
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* or -1 if the signal should be ignored.
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*/
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static int
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man_mod_signal (const struct management *man, const int signum)
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{
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const unsigned int flags = man->settings.mansig;
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int s = signum;
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if (s == SIGUSR1)
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{
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if (flags & MANSIG_MAP_USR1_TO_HUP)
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s = SIGHUP;
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if (flags & MANSIG_MAP_USR1_TO_TERM)
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s = SIGTERM;
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}
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if (flags & MANSIG_IGNORE_USR1_HUP)
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{
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if (s == SIGHUP || s == SIGUSR1)
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s = -1;
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}
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return s;
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}
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static void
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man_signal (struct management *man, const char *name)
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{
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const int sig = parse_signal (name);
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if (sig >= 0)
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{
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const int sig_mod = man_mod_signal (man, sig);
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if (sig_mod >= 0)
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{
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throw_signal (sig_mod);
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msg (M_CLIENT, "SUCCESS: signal %s thrown", signal_name (sig_mod, true));
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}
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else
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{
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if (man->persist.special_state_msg)
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msg (M_CLIENT, "%s", man->persist.special_state_msg);
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else
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msg (M_CLIENT, "ERROR: signal '%s' is currently ignored", name);
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}
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}
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else
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{
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msg (M_CLIENT, "ERROR: signal '%s' is not a known signal type", name);
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}
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}
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static void
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man_status (struct management *man, const int version, struct status_output *so)
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{
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if (man->persist.callback.status)
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{
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(*man->persist.callback.status) (man->persist.callback.arg, version, so);
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}
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else
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{
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msg (M_CLIENT, "ERROR: The 'status' command is not supported by the current daemon mode");
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}
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}
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static void
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man_bytecount (struct management *man, const int update_seconds)
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{
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if (update_seconds >= 0)
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man->connection.bytecount_update_seconds = update_seconds;
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else
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man->connection.bytecount_update_seconds = 0;
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msg (M_CLIENT, "SUCCESS: bytecount interval changed");
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}
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void
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man_bytecount_output_client (struct management *man)
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{
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char in[32];
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char out[32];
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/* do in a roundabout way to work around possible mingw or mingw-glibc bug */
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openvpn_snprintf (in, sizeof (in), counter_format, man->persist.bytes_in);
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openvpn_snprintf (out, sizeof (out), counter_format, man->persist.bytes_out);
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msg (M_CLIENT, ">BYTECOUNT:%s,%s", in, out);
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man->connection.bytecount_last_update = now;
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}
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#ifdef MANAGEMENT_DEF_AUTH
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void
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man_bytecount_output_server (struct management *man,
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const counter_type *bytes_in_total,
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const counter_type *bytes_out_total,
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struct man_def_auth_context *mdac)
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{
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char in[32];
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char out[32];
|
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/* do in a roundabout way to work around possible mingw or mingw-glibc bug */
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openvpn_snprintf (in, sizeof (in), counter_format, *bytes_in_total);
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openvpn_snprintf (out, sizeof (out), counter_format, *bytes_out_total);
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msg (M_CLIENT, ">BYTECOUNT_CLI:%lu,%s,%s", mdac->cid, in, out);
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mdac->bytecount_last_update = now;
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}
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#endif
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static void
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man_kill (struct management *man, const char *victim)
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{
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struct gc_arena gc = gc_new ();
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if (man->persist.callback.kill_by_cn && man->persist.callback.kill_by_addr)
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{
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struct buffer buf;
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char p1[128];
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char p2[128];
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int n_killed;
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|
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buf_set_read (&buf, (uint8_t*) victim, strlen (victim) + 1);
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buf_parse (&buf, ':', p1, sizeof (p1));
|
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buf_parse (&buf, ':', p2, sizeof (p2));
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if (strlen (p1) && strlen (p2))
|
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{
|
|
/* IP:port specified */
|
|
bool status;
|
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const in_addr_t addr = getaddr (GETADDR_HOST_ORDER|GETADDR_MSG_VIRT_OUT, p1, 0, &status, NULL);
|
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if (status)
|
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{
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const int port = atoi (p2);
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if (port > 0 && port < 65536)
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{
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n_killed = (*man->persist.callback.kill_by_addr) (man->persist.callback.arg, addr, port);
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if (n_killed > 0)
|
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{
|
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msg (M_CLIENT, "SUCCESS: %d client(s) at address %s:%d killed",
|
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n_killed,
|
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print_in_addr_t (addr, 0, &gc),
|
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port);
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: client at address %s:%d not found",
|
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print_in_addr_t (addr, 0, &gc),
|
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port);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: port number is out of range: %s", p2);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: error parsing IP address: %s", p1);
|
|
}
|
|
}
|
|
else if (strlen (p1))
|
|
{
|
|
/* common name specified */
|
|
n_killed = (*man->persist.callback.kill_by_cn) (man->persist.callback.arg, p1);
|
|
if (n_killed > 0)
|
|
{
|
|
msg (M_CLIENT, "SUCCESS: common name '%s' found, %d client(s) killed", p1, n_killed);
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: common name '%s' not found", p1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: kill parse");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: The 'kill' command is not supported by the current daemon mode");
|
|
}
|
|
|
|
gc_free (&gc);
|
|
}
|
|
|
|
/*
|
|
* General-purpose history command handler
|
|
* for the log and echo commands.
|
|
*/
|
|
static void
|
|
man_history (struct management *man,
|
|
const char *parm,
|
|
const char *type,
|
|
struct log_history *log,
|
|
bool *realtime,
|
|
const unsigned int lep_flags)
|
|
{
|
|
struct gc_arena gc = gc_new ();
|
|
int n = 0;
|
|
|
|
if (streq (parm, "on"))
|
|
{
|
|
*realtime = true;
|
|
msg (M_CLIENT, "SUCCESS: real-time %s notification set to ON", type);
|
|
}
|
|
else if (streq (parm, "off"))
|
|
{
|
|
*realtime = false;
|
|
msg (M_CLIENT, "SUCCESS: real-time %s notification set to OFF", type);
|
|
}
|
|
else if (streq (parm, "all") || (n = atoi (parm)) > 0)
|
|
{
|
|
const int size = log_history_size (log);
|
|
const int start = (n ? n : size) - 1;
|
|
int i;
|
|
|
|
for (i = start; i >= 0; --i)
|
|
{
|
|
const struct log_entry *e = log_history_ref (log, i);
|
|
if (e)
|
|
{
|
|
const char *out = log_entry_print (e, lep_flags, &gc);
|
|
virtual_output_callback_func (man, M_CLIENT, out);
|
|
}
|
|
}
|
|
msg (M_CLIENT, "END");
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: %s parameter must be 'on' or 'off' or some number n or 'all'", type);
|
|
}
|
|
|
|
gc_free (&gc);
|
|
}
|
|
|
|
static void
|
|
man_log (struct management *man, const char *parm)
|
|
{
|
|
man_history (man,
|
|
parm,
|
|
"log",
|
|
man->persist.log,
|
|
&man->connection.log_realtime,
|
|
LOG_PRINT_INT_DATE|LOG_PRINT_MSG_FLAGS);
|
|
}
|
|
|
|
static void
|
|
man_echo (struct management *man, const char *parm)
|
|
{
|
|
man_history (man,
|
|
parm,
|
|
"echo",
|
|
man->persist.echo,
|
|
&man->connection.echo_realtime,
|
|
LOG_PRINT_INT_DATE|MANAGEMENT_ECHO_FLAGS);
|
|
}
|
|
|
|
static void
|
|
man_state (struct management *man, const char *parm)
|
|
{
|
|
man_history (man,
|
|
parm,
|
|
"state",
|
|
man->persist.state,
|
|
&man->connection.state_realtime,
|
|
LOG_PRINT_INT_DATE|LOG_PRINT_STATE|
|
|
LOG_PRINT_LOCAL_IP|LOG_PRINT_REMOTE_IP);
|
|
}
|
|
|
|
static void
|
|
man_up_finalize (struct management *man)
|
|
{
|
|
switch (man->connection.up_query_mode)
|
|
{
|
|
case UP_QUERY_DISABLED:
|
|
man->connection.up_query.defined = false;
|
|
break;
|
|
case UP_QUERY_USER_PASS:
|
|
if (strlen (man->connection.up_query.username) && strlen (man->connection.up_query.password))
|
|
man->connection.up_query.defined = true;
|
|
break;
|
|
case UP_QUERY_PASS:
|
|
if (strlen (man->connection.up_query.password))
|
|
man->connection.up_query.defined = true;
|
|
break;
|
|
case UP_QUERY_NEED_OK:
|
|
if (strlen (man->connection.up_query.password))
|
|
man->connection.up_query.defined = true;
|
|
break;
|
|
case UP_QUERY_NEED_STR:
|
|
if (strlen (man->connection.up_query.password))
|
|
man->connection.up_query.defined = true;
|
|
break;
|
|
default:
|
|
ASSERT (0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
man_query_user_pass (struct management *man,
|
|
const char *type,
|
|
const char *string,
|
|
const bool needed,
|
|
const char *prompt,
|
|
char *dest,
|
|
int len)
|
|
{
|
|
if (needed)
|
|
{
|
|
ASSERT (man->connection.up_query_type);
|
|
if (streq (man->connection.up_query_type, type))
|
|
{
|
|
strncpynt (dest, string, len);
|
|
man_up_finalize (man);
|
|
msg (M_CLIENT, "SUCCESS: '%s' %s entered, but not yet verified",
|
|
type,
|
|
prompt);
|
|
}
|
|
else
|
|
msg (M_CLIENT, "ERROR: %s of type '%s' entered, but we need one of type '%s'",
|
|
prompt,
|
|
type,
|
|
man->connection.up_query_type);
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: no %s is currently needed at this time", prompt);
|
|
}
|
|
}
|
|
|
|
static void
|
|
man_query_username (struct management *man, const char *type, const char *string)
|
|
{
|
|
const bool needed = (man->connection.up_query_mode == UP_QUERY_USER_PASS && man->connection.up_query_type);
|
|
man_query_user_pass (man, type, string, needed, "username", man->connection.up_query.username, USER_PASS_LEN);
|
|
}
|
|
|
|
static void
|
|
man_query_password (struct management *man, const char *type, const char *string)
|
|
{
|
|
const bool needed = ((man->connection.up_query_mode == UP_QUERY_USER_PASS
|
|
|| man->connection.up_query_mode == UP_QUERY_PASS)
|
|
&& man->connection.up_query_type);
|
|
if (!string[0]) /* allow blank passwords to be passed through using the blank_up tag */
|
|
string = blank_up;
|
|
man_query_user_pass (man, type, string, needed, "password", man->connection.up_query.password, USER_PASS_LEN);
|
|
}
|
|
|
|
static void
|
|
man_query_need_ok (struct management *man, const char *type, const char *action)
|
|
{
|
|
const bool needed = ((man->connection.up_query_mode == UP_QUERY_NEED_OK) && man->connection.up_query_type);
|
|
man_query_user_pass (man, type, action, needed, "needok-confirmation", man->connection.up_query.password, USER_PASS_LEN);
|
|
}
|
|
|
|
static void
|
|
man_query_need_str (struct management *man, const char *type, const char *action)
|
|
{
|
|
const bool needed = ((man->connection.up_query_mode == UP_QUERY_NEED_STR) && man->connection.up_query_type);
|
|
man_query_user_pass (man, type, action, needed, "needstr-string", man->connection.up_query.password, USER_PASS_LEN);
|
|
}
|
|
|
|
static void
|
|
man_forget_passwords (struct management *man)
|
|
{
|
|
#if defined(USE_CRYPTO) && defined(USE_SSL)
|
|
ssl_purge_auth ();
|
|
msg (M_CLIENT, "SUCCESS: Passwords were forgotten");
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
man_net (struct management *man)
|
|
{
|
|
if (man->persist.callback.show_net)
|
|
{
|
|
(*man->persist.callback.show_net) (man->persist.callback.arg, M_CLIENT);
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: The 'net' command is not supported by the current daemon mode");
|
|
}
|
|
}
|
|
|
|
#ifdef ENABLE_PKCS11
|
|
|
|
static void
|
|
man_pkcs11_id_count (struct management *man)
|
|
{
|
|
msg (M_CLIENT, ">PKCS11ID-COUNT:%d", pkcs11_management_id_count ());
|
|
}
|
|
|
|
static void
|
|
man_pkcs11_id_get (struct management *man, const int index)
|
|
{
|
|
char *id = NULL;
|
|
char *base64 = NULL;
|
|
|
|
if (pkcs11_management_id_get (index, &id, &base64))
|
|
msg (M_CLIENT, ">PKCS11ID-ENTRY:'%d', ID:'%s', BLOB:'%s'", index, id, base64);
|
|
else
|
|
msg (M_CLIENT, ">PKCS11ID-ENTRY:'%d'", index);
|
|
|
|
if (id != NULL)
|
|
free (id);
|
|
if (base64 != NULL)
|
|
free (base64);
|
|
}
|
|
|
|
#endif
|
|
|
|
static void
|
|
man_hold (struct management *man, const char *cmd)
|
|
{
|
|
if (cmd)
|
|
{
|
|
if (streq (cmd, "on"))
|
|
{
|
|
man->settings.flags |= MF_HOLD;
|
|
msg (M_CLIENT, "SUCCESS: hold flag set to ON");
|
|
}
|
|
else if (streq (cmd, "off"))
|
|
{
|
|
man->settings.flags &= ~MF_HOLD;
|
|
msg (M_CLIENT, "SUCCESS: hold flag set to OFF");
|
|
}
|
|
else if (streq (cmd, "release"))
|
|
{
|
|
man->persist.hold_release = true;
|
|
msg (M_CLIENT, "SUCCESS: hold release succeeded");
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: bad hold command parameter");
|
|
}
|
|
}
|
|
else
|
|
msg (M_CLIENT, "SUCCESS: hold=%d", BOOL_CAST(man->settings.flags & MF_HOLD));
|
|
}
|
|
|
|
#ifdef MANAGEMENT_DEF_AUTH
|
|
|
|
static bool
|
|
parse_cid (const char *str, unsigned long *cid)
|
|
{
|
|
if (sscanf (str, "%lu", cid) == 1)
|
|
return true;
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: cannot parse CID");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static bool
|
|
parse_kid (const char *str, unsigned int *kid)
|
|
{
|
|
if (sscanf (str, "%u", kid) == 1)
|
|
return true;
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: cannot parse KID");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static void
|
|
in_extra_reset (struct man_connection *mc, const bool new)
|
|
{
|
|
if (mc)
|
|
{
|
|
if (!new)
|
|
{
|
|
mc->in_extra_cmd = IEC_UNDEF;
|
|
mc->in_extra_cid = 0;
|
|
mc->in_extra_kid = 0;
|
|
}
|
|
if (mc->in_extra)
|
|
{
|
|
buffer_list_free (mc->in_extra);
|
|
mc->in_extra = NULL;
|
|
}
|
|
if (new)
|
|
mc->in_extra = buffer_list_new (0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
in_extra_dispatch (struct management *man)
|
|
{
|
|
switch (man->connection.in_extra_cmd)
|
|
{
|
|
case IEC_CLIENT_AUTH:
|
|
if (man->persist.callback.client_auth)
|
|
{
|
|
const bool status = (*man->persist.callback.client_auth)
|
|
(man->persist.callback.arg,
|
|
man->connection.in_extra_cid,
|
|
man->connection.in_extra_kid,
|
|
true,
|
|
NULL,
|
|
NULL,
|
|
man->connection.in_extra);
|
|
man->connection.in_extra = NULL;
|
|
if (status)
|
|
{
|
|
msg (M_CLIENT, "SUCCESS: client-auth command succeeded");
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: client-auth command failed");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: The client-auth command is not supported by the current daemon mode");
|
|
}
|
|
break;
|
|
#ifdef MANAGEMENT_PF
|
|
case IEC_CLIENT_PF:
|
|
if (man->persist.callback.client_pf)
|
|
{
|
|
const bool status = (*man->persist.callback.client_pf)
|
|
(man->persist.callback.arg,
|
|
man->connection.in_extra_cid,
|
|
man->connection.in_extra);
|
|
man->connection.in_extra = NULL;
|
|
if (status)
|
|
{
|
|
msg (M_CLIENT, "SUCCESS: client-pf command succeeded");
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: client-pf command failed");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: The client-pf command is not supported by the current daemon mode");
|
|
}
|
|
break;
|
|
#endif
|
|
}
|
|
in_extra_reset (&man->connection, false);
|
|
}
|
|
|
|
static void
|
|
man_client_auth (struct management *man, const char *cid_str, const char *kid_str, const bool extra)
|
|
{
|
|
struct man_connection *mc = &man->connection;
|
|
mc->in_extra_cid = 0;
|
|
mc->in_extra_kid = 0;
|
|
if (parse_cid (cid_str, &mc->in_extra_cid)
|
|
&& parse_kid (kid_str, &mc->in_extra_kid))
|
|
{
|
|
mc->in_extra_cmd = IEC_CLIENT_AUTH;
|
|
in_extra_reset (mc, true);
|
|
if (!extra)
|
|
in_extra_dispatch (man);
|
|
}
|
|
}
|
|
|
|
static void
|
|
man_client_deny (struct management *man, const char *cid_str, const char *kid_str, const char *reason, const char *client_reason)
|
|
{
|
|
unsigned long cid = 0;
|
|
unsigned int kid = 0;
|
|
if (parse_cid (cid_str, &cid) && parse_kid (kid_str, &kid))
|
|
{
|
|
if (man->persist.callback.client_auth)
|
|
{
|
|
const bool status = (*man->persist.callback.client_auth)
|
|
(man->persist.callback.arg,
|
|
cid,
|
|
kid,
|
|
false,
|
|
reason,
|
|
client_reason,
|
|
NULL);
|
|
if (status)
|
|
{
|
|
msg (M_CLIENT, "SUCCESS: client-deny command succeeded");
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: client-deny command failed");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: The client-deny command is not supported by the current daemon mode");
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
man_client_kill (struct management *man, const char *cid_str)
|
|
{
|
|
unsigned long cid = 0;
|
|
if (parse_cid (cid_str, &cid))
|
|
{
|
|
if (man->persist.callback.kill_by_cid)
|
|
{
|
|
const bool status = (*man->persist.callback.kill_by_cid) (man->persist.callback.arg, cid);
|
|
if (status)
|
|
{
|
|
msg (M_CLIENT, "SUCCESS: client-kill command succeeded");
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: client-kill command failed");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: The client-kill command is not supported by the current daemon mode");
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
man_client_n_clients (struct management *man)
|
|
{
|
|
if (man->persist.callback.n_clients)
|
|
{
|
|
const int nclients = (*man->persist.callback.n_clients) (man->persist.callback.arg);
|
|
msg (M_CLIENT, "SUCCESS: nclients=%d", nclients);
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: The nclients command is not supported by the current daemon mode");
|
|
}
|
|
}
|
|
|
|
static void
|
|
man_env_filter (struct management *man, const int level)
|
|
{
|
|
man->connection.env_filter_level = level;
|
|
msg (M_CLIENT, "SUCCESS: env_filter_level=%d", level);
|
|
}
|
|
|
|
#ifdef MANAGEMENT_PF
|
|
|
|
static void
|
|
man_client_pf (struct management *man, const char *cid_str)
|
|
{
|
|
struct man_connection *mc = &man->connection;
|
|
mc->in_extra_cid = 0;
|
|
mc->in_extra_kid = 0;
|
|
if (parse_cid (cid_str, &mc->in_extra_cid))
|
|
{
|
|
mc->in_extra_cmd = IEC_CLIENT_PF;
|
|
in_extra_reset (mc, true);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
#endif
|
|
|
|
static void
|
|
man_load_stats (struct management *man)
|
|
{
|
|
extern counter_type link_read_bytes_global;
|
|
extern counter_type link_write_bytes_global;
|
|
int nclients = 0;
|
|
|
|
if (man->persist.callback.n_clients)
|
|
nclients = (*man->persist.callback.n_clients) (man->persist.callback.arg);
|
|
msg (M_CLIENT, "SUCCESS: nclients=%d,bytesin=" counter_format ",bytesout=" counter_format,
|
|
nclients,
|
|
link_read_bytes_global,
|
|
link_write_bytes_global);
|
|
}
|
|
|
|
#define MN_AT_LEAST (1<<0)
|
|
|
|
static bool
|
|
man_need (struct management *man, const char **p, const int n, unsigned int flags)
|
|
{
|
|
int i;
|
|
ASSERT (p[0]);
|
|
for (i = 1; i <= n; ++i)
|
|
{
|
|
if (!p[i])
|
|
{
|
|
msg (M_CLIENT, "ERROR: the '%s' command requires %s%d parameter%s",
|
|
p[0],
|
|
(flags & MN_AT_LEAST) ? "at least " : "",
|
|
n,
|
|
n > 1 ? "s" : "");
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
#if HTTP_PROXY_FALLBACK
|
|
|
|
static void
|
|
man_http_proxy_fallback (struct management *man, const char *server, const char *port, const char *flags)
|
|
{
|
|
if (man->persist.callback.http_proxy_fallback_cmd)
|
|
{
|
|
const bool status = (*man->persist.callback.http_proxy_fallback_cmd)(man->persist.callback.arg, server, port, flags);
|
|
if (status)
|
|
{
|
|
msg (M_CLIENT, "SUCCESS: proxy-fallback command succeeded");
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: proxy-fallback command failed");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: The proxy-fallback command is not supported by the current daemon mode");
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
static void
|
|
man_dispatch_command (struct management *man, struct status_output *so, const char **p, const int nparms)
|
|
{
|
|
struct gc_arena gc = gc_new ();
|
|
|
|
ASSERT (p[0]);
|
|
if (streq (p[0], "exit") || streq (p[0], "quit"))
|
|
{
|
|
man->connection.halt = true;
|
|
goto done;
|
|
}
|
|
else if (streq (p[0], "help"))
|
|
{
|
|
man_help ();
|
|
}
|
|
else if (streq (p[0], "version"))
|
|
{
|
|
msg (M_CLIENT, "OpenVPN Version: %s", title_string);
|
|
msg (M_CLIENT, "Management Version: %d", MANAGEMENT_VERSION);
|
|
msg (M_CLIENT, "END");
|
|
}
|
|
else if (streq (p[0], "pid"))
|
|
{
|
|
msg (M_CLIENT, "SUCCESS: pid=%d", openvpn_getpid ());
|
|
}
|
|
#ifdef MANAGEMENT_DEF_AUTH
|
|
else if (streq (p[0], "nclients"))
|
|
{
|
|
man_client_n_clients (man);
|
|
}
|
|
else if (streq (p[0], "env-filter"))
|
|
{
|
|
int level = 0;
|
|
if (p[1])
|
|
level = atoi (p[1]);
|
|
man_env_filter (man, level);
|
|
}
|
|
#endif
|
|
else if (streq (p[0], "signal"))
|
|
{
|
|
if (man_need (man, p, 1, 0))
|
|
man_signal (man, p[1]);
|
|
}
|
|
else if (streq (p[0], "load-stats"))
|
|
{
|
|
man_load_stats (man);
|
|
}
|
|
else if (streq (p[0], "status"))
|
|
{
|
|
int version = 0;
|
|
if (p[1])
|
|
version = atoi (p[1]);
|
|
man_status (man, version, so);
|
|
}
|
|
else if (streq (p[0], "kill"))
|
|
{
|
|
if (man_need (man, p, 1, 0))
|
|
man_kill (man, p[1]);
|
|
}
|
|
else if (streq (p[0], "verb"))
|
|
{
|
|
if (p[1])
|
|
{
|
|
const int level = atoi(p[1]);
|
|
if (set_debug_level (level, 0))
|
|
msg (M_CLIENT, "SUCCESS: verb level changed");
|
|
else
|
|
msg (M_CLIENT, "ERROR: verb level is out of range");
|
|
}
|
|
else
|
|
msg (M_CLIENT, "SUCCESS: verb=%d", get_debug_level ());
|
|
}
|
|
else if (streq (p[0], "mute"))
|
|
{
|
|
if (p[1])
|
|
{
|
|
const int level = atoi(p[1]);
|
|
if (set_mute_cutoff (level))
|
|
msg (M_CLIENT, "SUCCESS: mute level changed");
|
|
else
|
|
msg (M_CLIENT, "ERROR: mute level is out of range");
|
|
}
|
|
else
|
|
msg (M_CLIENT, "SUCCESS: mute=%d", get_mute_cutoff ());
|
|
}
|
|
else if (streq (p[0], "auth-retry"))
|
|
{
|
|
#if P2MP
|
|
if (p[1])
|
|
{
|
|
if (auth_retry_set (M_CLIENT, p[1]))
|
|
msg (M_CLIENT, "SUCCESS: auth-retry parameter changed");
|
|
else
|
|
msg (M_CLIENT, "ERROR: bad auth-retry parameter");
|
|
}
|
|
else
|
|
msg (M_CLIENT, "SUCCESS: auth-retry=%s", auth_retry_print ());
|
|
#else
|
|
msg (M_CLIENT, "ERROR: auth-retry feature is unavailable");
|
|
#endif
|
|
}
|
|
else if (streq (p[0], "state"))
|
|
{
|
|
if (!p[1])
|
|
{
|
|
man_state (man, "1");
|
|
}
|
|
else
|
|
{
|
|
if (p[1])
|
|
man_state (man, p[1]);
|
|
if (p[2])
|
|
man_state (man, p[2]);
|
|
}
|
|
}
|
|
else if (streq (p[0], "log"))
|
|
{
|
|
if (man_need (man, p, 1, MN_AT_LEAST))
|
|
{
|
|
if (p[1])
|
|
man_log (man, p[1]);
|
|
if (p[2])
|
|
man_log (man, p[2]);
|
|
}
|
|
}
|
|
else if (streq (p[0], "echo"))
|
|
{
|
|
if (man_need (man, p, 1, MN_AT_LEAST))
|
|
{
|
|
if (p[1])
|
|
man_echo (man, p[1]);
|
|
if (p[2])
|
|
man_echo (man, p[2]);
|
|
}
|
|
}
|
|
else if (streq (p[0], "username"))
|
|
{
|
|
if (man_need (man, p, 2, 0))
|
|
man_query_username (man, p[1], p[2]);
|
|
}
|
|
else if (streq (p[0], "password"))
|
|
{
|
|
if (man_need (man, p, 2, 0))
|
|
man_query_password (man, p[1], p[2]);
|
|
}
|
|
else if (streq (p[0], "forget-passwords"))
|
|
{
|
|
man_forget_passwords (man);
|
|
}
|
|
else if (streq (p[0], "needok"))
|
|
{
|
|
if (man_need (man, p, 2, 0))
|
|
man_query_need_ok (man, p[1], p[2]);
|
|
}
|
|
else if (streq (p[0], "needstr"))
|
|
{
|
|
if (man_need (man, p, 2, 0))
|
|
man_query_need_str (man, p[1], p[2]);
|
|
}
|
|
else if (streq (p[0], "net"))
|
|
{
|
|
man_net (man);
|
|
}
|
|
else if (streq (p[0], "hold"))
|
|
{
|
|
man_hold (man, p[1]);
|
|
}
|
|
else if (streq (p[0], "bytecount"))
|
|
{
|
|
if (man_need (man, p, 1, 0))
|
|
man_bytecount (man, atoi(p[1]));
|
|
}
|
|
#ifdef MANAGEMENT_DEF_AUTH
|
|
else if (streq (p[0], "client-kill"))
|
|
{
|
|
if (man_need (man, p, 1, 0))
|
|
man_client_kill (man, p[1]);
|
|
}
|
|
else if (streq (p[0], "client-deny"))
|
|
{
|
|
if (man_need (man, p, 3, MN_AT_LEAST))
|
|
man_client_deny (man, p[1], p[2], p[3], p[4]);
|
|
}
|
|
else if (streq (p[0], "client-auth-nt"))
|
|
{
|
|
if (man_need (man, p, 2, 0))
|
|
man_client_auth (man, p[1], p[2], false);
|
|
}
|
|
else if (streq (p[0], "client-auth"))
|
|
{
|
|
if (man_need (man, p, 2, 0))
|
|
man_client_auth (man, p[1], p[2], true);
|
|
}
|
|
#ifdef MANAGEMENT_PF
|
|
else if (streq (p[0], "client-pf"))
|
|
{
|
|
if (man_need (man, p, 1, 0))
|
|
man_client_pf (man, p[1]);
|
|
}
|
|
#endif
|
|
#endif
|
|
#ifdef ENABLE_PKCS11
|
|
else if (streq (p[0], "pkcs11-id-count"))
|
|
{
|
|
man_pkcs11_id_count (man);
|
|
}
|
|
else if (streq (p[0], "pkcs11-id-get"))
|
|
{
|
|
if (man_need (man, p, 1, 0))
|
|
man_pkcs11_id_get (man, atoi(p[1]));
|
|
}
|
|
#endif
|
|
#if HTTP_PROXY_FALLBACK
|
|
else if (streq (p[0], "http-proxy-fallback"))
|
|
{
|
|
if (man_need (man, p, 2, MN_AT_LEAST))
|
|
man_http_proxy_fallback (man, p[1], p[2], p[3]);
|
|
}
|
|
else if (streq (p[0], "http-proxy-fallback-disable"))
|
|
{
|
|
man_http_proxy_fallback (man, NULL, NULL, NULL);
|
|
}
|
|
#endif
|
|
#if 1
|
|
else if (streq (p[0], "test"))
|
|
{
|
|
if (man_need (man, p, 1, 0))
|
|
{
|
|
int i;
|
|
const int n = atoi (p[1]);
|
|
for (i = 0; i < n; ++i)
|
|
{
|
|
msg (M_CLIENT, "[%d] The purpose of this command is to generate large amounts of output.", i);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
else
|
|
{
|
|
msg (M_CLIENT, "ERROR: unknown command, enter 'help' for more options");
|
|
}
|
|
|
|
done:
|
|
gc_free (&gc);
|
|
}
|
|
|
|
#ifdef WIN32
|
|
|
|
static void
|
|
man_start_ne32 (struct management *man)
|
|
{
|
|
switch (man->connection.state)
|
|
{
|
|
case MS_LISTEN:
|
|
net_event_win32_start (&man->connection.ne32, FD_ACCEPT, man->connection.sd_top);
|
|
break;
|
|
case MS_CC_WAIT_READ:
|
|
case MS_CC_WAIT_WRITE:
|
|
net_event_win32_start (&man->connection.ne32, FD_READ|FD_WRITE|FD_CLOSE, man->connection.sd_cli);
|
|
break;
|
|
default:
|
|
ASSERT (0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
man_stop_ne32 (struct management *man)
|
|
{
|
|
net_event_win32_stop (&man->connection.ne32);
|
|
}
|
|
|
|
#endif
|
|
|
|
static void
|
|
man_record_peer_info (struct management *man)
|
|
{
|
|
struct gc_arena gc = gc_new ();
|
|
if (man->settings.write_peer_info_file)
|
|
{
|
|
bool success = false;
|
|
#ifdef HAVE_GETSOCKNAME
|
|
if (socket_defined (man->connection.sd_cli))
|
|
{
|
|
struct sockaddr_in addr;
|
|
socklen_t addrlen = sizeof (addr);
|
|
int status;
|
|
|
|
CLEAR (addr);
|
|
status = getsockname (man->connection.sd_cli, (struct sockaddr *)&addr, &addrlen);
|
|
if (!status && addrlen == sizeof (addr))
|
|
{
|
|
const in_addr_t a = ntohl (addr.sin_addr.s_addr);
|
|
const int p = ntohs (addr.sin_port);
|
|
FILE *fp = fopen (man->settings.write_peer_info_file, "w");
|
|
if (fp)
|
|
{
|
|
fprintf (fp, "%s\n%d\n", print_in_addr_t (a, 0, &gc), p);
|
|
if (!fclose (fp))
|
|
success = true;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
if (!success)
|
|
{
|
|
msg (D_MANAGEMENT, "MANAGEMENT: failed to write peer info to file %s",
|
|
man->settings.write_peer_info_file);
|
|
throw_signal_soft (SIGTERM, "management-connect-failed");
|
|
}
|
|
}
|
|
gc_free (&gc);
|
|
}
|
|
|
|
static void
|
|
man_connection_settings_reset (struct management *man)
|
|
{
|
|
man->connection.state_realtime = false;
|
|
man->connection.log_realtime = false;
|
|
man->connection.echo_realtime = false;
|
|
man->connection.bytecount_update_seconds = 0;
|
|
man->connection.password_verified = false;
|
|
man->connection.password_tries = 0;
|
|
man->connection.halt = false;
|
|
man->connection.state = MS_CC_WAIT_WRITE;
|
|
}
|
|
|
|
static void
|
|
man_new_connection_post (struct management *man, const char *description)
|
|
{
|
|
struct gc_arena gc = gc_new ();
|
|
|
|
set_nonblock (man->connection.sd_cli);
|
|
set_cloexec (man->connection.sd_cli);
|
|
|
|
man_connection_settings_reset (man);
|
|
|
|
#ifdef WIN32
|
|
man_start_ne32 (man);
|
|
#endif
|
|
|
|
#if UNIX_SOCK_SUPPORT
|
|
if (man->settings.flags & MF_UNIX_SOCK)
|
|
{
|
|
msg (D_MANAGEMENT, "MANAGEMENT: %s %s",
|
|
description,
|
|
sockaddr_unix_name (&man->settings.local_unix, "NULL"));
|
|
}
|
|
else
|
|
#endif
|
|
msg (D_MANAGEMENT, "MANAGEMENT: %s %s",
|
|
description,
|
|
print_sockaddr (&man->settings.local, &gc));
|
|
|
|
buffer_list_reset (man->connection.out);
|
|
|
|
if (!man_password_needed (man))
|
|
man_welcome (man);
|
|
man_prompt (man);
|
|
man_update_io_state (man);
|
|
|
|
gc_free (&gc);
|
|
}
|
|
|
|
#if UNIX_SOCK_SUPPORT
|
|
static bool
|
|
man_verify_unix_peer_uid_gid (struct management *man, const socket_descriptor_t sd)
|
|
{
|
|
if (socket_defined (sd) && (man->settings.client_uid != -1 || man->settings.client_gid != -1))
|
|
{
|
|
static const char err_prefix[] = "MANAGEMENT: unix domain socket client connection rejected --";
|
|
int uid, gid;
|
|
if (unix_socket_get_peer_uid_gid (man->connection.sd_cli, &uid, &gid))
|
|
{
|
|
if (man->settings.client_uid != -1 && man->settings.client_uid != uid)
|
|
{
|
|
msg (D_MANAGEMENT, "%s UID of socket peer (%d) doesn't match required value (%d) as given by --management-client-user",
|
|
err_prefix, uid, man->settings.client_uid);
|
|
return false;
|
|
}
|
|
if (man->settings.client_gid != -1 && man->settings.client_gid != gid)
|
|
{
|
|
msg (D_MANAGEMENT, "%s GID of socket peer (%d) doesn't match required value (%d) as given by --management-client-group",
|
|
err_prefix, gid, man->settings.client_gid);
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
msg (D_MANAGEMENT, "%s cannot get UID/GID of socket peer", err_prefix);
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
man_accept (struct management *man)
|
|
{
|
|
struct link_socket_actual act;
|
|
CLEAR (act);
|
|
|
|
/*
|
|
* Accept the TCP or Unix domain socket client.
|
|
*/
|
|
#if UNIX_SOCK_SUPPORT
|
|
if (man->settings.flags & MF_UNIX_SOCK)
|
|
{
|
|
struct sockaddr_un remote;
|
|
man->connection.sd_cli = socket_accept_unix (man->connection.sd_top, &remote);
|
|
if (!man_verify_unix_peer_uid_gid (man, man->connection.sd_cli))
|
|
sd_close (&man->connection.sd_cli);
|
|
}
|
|
else
|
|
#endif
|
|
man->connection.sd_cli = socket_do_accept (man->connection.sd_top, &act, false);
|
|
|
|
if (socket_defined (man->connection.sd_cli))
|
|
{
|
|
man->connection.remote = act.dest;
|
|
|
|
if (socket_defined (man->connection.sd_top))
|
|
{
|
|
#ifdef WIN32
|
|
man_stop_ne32 (man);
|
|
#endif
|
|
}
|
|
|
|
man_new_connection_post (man, "Client connected from");
|
|
}
|
|
}
|
|
|
|
static void
|
|
man_listen (struct management *man)
|
|
{
|
|
struct gc_arena gc = gc_new ();
|
|
|
|
/*
|
|
* Initialize state
|
|
*/
|
|
man->connection.state = MS_LISTEN;
|
|
man->connection.sd_cli = SOCKET_UNDEFINED;
|
|
|
|
/*
|
|
* Initialize listening socket
|
|
*/
|
|
if (man->connection.sd_top == SOCKET_UNDEFINED)
|
|
{
|
|
#if UNIX_SOCK_SUPPORT
|
|
if (man->settings.flags & MF_UNIX_SOCK)
|
|
{
|
|
man_delete_unix_socket (man);
|
|
man->connection.sd_top = create_socket_unix ();
|
|
socket_bind_unix (man->connection.sd_top, &man->settings.local_unix, "MANAGEMENT");
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
man->connection.sd_top = create_socket_tcp ();
|
|
socket_bind (man->connection.sd_top, &man->settings.local, "MANAGEMENT");
|
|
}
|
|
|
|
/*
|
|
* Listen for connection
|
|
*/
|
|
if (listen (man->connection.sd_top, 1))
|
|
msg (M_SOCKERR, "MANAGEMENT: listen() failed");
|
|
|
|
/*
|
|
* Set misc socket properties
|
|
*/
|
|
set_nonblock (man->connection.sd_top);
|
|
set_cloexec (man->connection.sd_top);
|
|
|
|
#if UNIX_SOCK_SUPPORT
|
|
if (man->settings.flags & MF_UNIX_SOCK)
|
|
{
|
|
msg (D_MANAGEMENT, "MANAGEMENT: unix domain socket listening on %s",
|
|
sockaddr_unix_name (&man->settings.local_unix, "NULL"));
|
|
}
|
|
else
|
|
#endif
|
|
msg (D_MANAGEMENT, "MANAGEMENT: TCP Socket listening on %s",
|
|
print_sockaddr (&man->settings.local, &gc));
|
|
}
|
|
|
|
#ifdef WIN32
|
|
man_start_ne32 (man);
|
|
#endif
|
|
|
|
gc_free (&gc);
|
|
}
|
|
|
|
static void
|
|
man_connect (struct management *man)
|
|
{
|
|
struct gc_arena gc = gc_new ();
|
|
int status;
|
|
int signal_received = 0;
|
|
|
|
/*
|
|
* Initialize state
|
|
*/
|
|
man->connection.state = MS_INITIAL;
|
|
man->connection.sd_top = SOCKET_UNDEFINED;
|
|
|
|
#if UNIX_SOCK_SUPPORT
|
|
if (man->settings.flags & MF_UNIX_SOCK)
|
|
{
|
|
man->connection.sd_cli = create_socket_unix ();
|
|
status = socket_connect_unix (man->connection.sd_cli, &man->settings.local_unix);
|
|
if (!status && !man_verify_unix_peer_uid_gid (man, man->connection.sd_cli))
|
|
{
|
|
#ifdef EPERM
|
|
status = EPERM;
|
|
#else
|
|
status = 1;
|
|
#endif
|
|
sd_close (&man->connection.sd_cli);
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
man->connection.sd_cli = create_socket_tcp ();
|
|
status = openvpn_connect (man->connection.sd_cli,
|
|
&man->settings.local,
|
|
5,
|
|
&signal_received);
|
|
}
|
|
|
|
if (signal_received)
|
|
{
|
|
throw_signal (signal_received);
|
|
goto done;
|
|
}
|
|
|
|
if (status)
|
|
{
|
|
#if UNIX_SOCK_SUPPORT
|
|
if (man->settings.flags & MF_UNIX_SOCK)
|
|
{
|
|
msg (D_LINK_ERRORS,
|
|
"MANAGEMENT: connect to unix socket %s failed: %s",
|
|
sockaddr_unix_name (&man->settings.local_unix, "NULL"),
|
|
strerror_ts (status, &gc));
|
|
}
|
|
else
|
|
#endif
|
|
msg (D_LINK_ERRORS,
|
|
"MANAGEMENT: connect to %s failed: %s",
|
|
print_sockaddr (&man->settings.local, &gc),
|
|
strerror_ts (status, &gc));
|
|
throw_signal_soft (SIGTERM, "management-connect-failed");
|
|
goto done;
|
|
}
|
|
|
|
man_record_peer_info (man);
|
|
man_new_connection_post (man, "Connected to management server at");
|
|
|
|
done:
|
|
gc_free (&gc);
|
|
}
|
|
|
|
static void
|
|
man_reset_client_socket (struct management *man, const bool exiting)
|
|
{
|
|
if (socket_defined (man->connection.sd_cli))
|
|
{
|
|
#ifdef WIN32
|
|
man_stop_ne32 (man);
|
|
#endif
|
|
man_close_socket (man, man->connection.sd_cli);
|
|
man->connection.sd_cli = SOCKET_UNDEFINED;
|
|
man->connection.state = MS_INITIAL;
|
|
command_line_reset (man->connection.in);
|
|
buffer_list_reset (man->connection.out);
|
|
#ifdef MANAGEMENT_DEF_AUTH
|
|
in_extra_reset (&man->connection, false);
|
|
#endif
|
|
msg (D_MANAGEMENT, "MANAGEMENT: Client disconnected");
|
|
}
|
|
if (!exiting)
|
|
{
|
|
#if defined(USE_CRYPTO) && defined(USE_SSL)
|
|
if (man->settings.flags & MF_FORGET_DISCONNECT)
|
|
ssl_purge_auth ();
|
|
#endif
|
|
if (man->settings.flags & MF_SIGNAL) {
|
|
int mysig = man_mod_signal (man, SIGUSR1);
|
|
if (mysig >= 0)
|
|
{
|
|
msg (D_MANAGEMENT, "MANAGEMENT: Triggering management signal");
|
|
throw_signal_soft (mysig, "management-disconnect");
|
|
}
|
|
}
|
|
|
|
if (man->settings.flags & MF_CONNECT_AS_CLIENT)
|
|
{
|
|
msg (D_MANAGEMENT, "MANAGEMENT: Triggering management exit");
|
|
throw_signal_soft (SIGTERM, "management-exit");
|
|
}
|
|
else
|
|
man_listen (man);
|
|
}
|
|
}
|
|
|
|
static void
|
|
man_process_command (struct management *man, const char *line)
|
|
{
|
|
struct gc_arena gc = gc_new ();
|
|
struct status_output *so;
|
|
int nparms;
|
|
char *parms[MAX_PARMS+1];
|
|
|
|
CLEAR (parms);
|
|
so = status_open (NULL, 0, -1, &man->persist.vout, 0);
|
|
#ifdef MANAGEMENT_DEF_AUTH
|
|
in_extra_reset (&man->connection, false);
|
|
#endif
|
|
|
|
if (man_password_needed (man))
|
|
{
|
|
man_check_password (man, line);
|
|
}
|
|
else
|
|
{
|
|
nparms = parse_line (line, parms, MAX_PARMS, "TCP", 0, M_CLIENT, &gc);
|
|
if (parms[0] && streq (parms[0], "password"))
|
|
msg (D_MANAGEMENT_DEBUG, "MANAGEMENT: CMD 'password [...]'");
|
|
else if (!streq (line, "load-stats"))
|
|
msg (D_MANAGEMENT_DEBUG, "MANAGEMENT: CMD '%s'", line);
|
|
|
|
#if 0
|
|
/* DEBUGGING -- print args */
|
|
{
|
|
int i;
|
|
for (i = 0; i < nparms; ++i)
|
|
msg (M_INFO, "[%d] '%s'", i, parms[i]);
|
|
}
|
|
#endif
|
|
|
|
if (nparms > 0)
|
|
man_dispatch_command (man, so, (const char **)parms, nparms);
|
|
}
|
|
|
|
CLEAR (parms);
|
|
status_close (so);
|
|
gc_free (&gc);
|
|
}
|
|
|
|
static bool
|
|
man_io_error (struct management *man, const char *prefix)
|
|
{
|
|
const int err = openvpn_errno_socket ();
|
|
|
|
if (!ignore_sys_error (err))
|
|
{
|
|
struct gc_arena gc = gc_new ();
|
|
msg (D_MANAGEMENT, "MANAGEMENT: TCP %s error: %s",
|
|
prefix,
|
|
strerror_ts (err, &gc));
|
|
gc_free (&gc);
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
static int
|
|
man_read (struct management *man)
|
|
{
|
|
/*
|
|
* read command line from socket
|
|
*/
|
|
unsigned char buf[256];
|
|
int len = 0;
|
|
|
|
len = recv (man->connection.sd_cli, buf, sizeof (buf), MSG_NOSIGNAL);
|
|
if (len == 0)
|
|
{
|
|
man_reset_client_socket (man, false);
|
|
}
|
|
else if (len > 0)
|
|
{
|
|
bool processed_command = false;
|
|
|
|
ASSERT (len <= (int) sizeof (buf));
|
|
command_line_add (man->connection.in, buf, len);
|
|
|
|
/*
|
|
* Reset output object
|
|
*/
|
|
buffer_list_reset (man->connection.out);
|
|
|
|
/*
|
|
* process command line if complete
|
|
*/
|
|
{
|
|
const unsigned char *line;
|
|
while ((line = command_line_get (man->connection.in)))
|
|
{
|
|
#ifdef MANAGEMENT_DEF_AUTH
|
|
if (man->connection.in_extra)
|
|
{
|
|
if (!strcmp ((char *)line, "END"))
|
|
{
|
|
in_extra_dispatch (man);
|
|
in_extra_reset (&man->connection, false);
|
|
}
|
|
else
|
|
{
|
|
buffer_list_push (man->connection.in_extra, line);
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
man_process_command (man, (char *) line);
|
|
if (man->connection.halt)
|
|
break;
|
|
command_line_next (man->connection.in);
|
|
processed_command = true;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Reset output state to MS_CC_WAIT_(READ|WRITE)
|
|
*/
|
|
if (man->connection.halt)
|
|
{
|
|
man_reset_client_socket (man, false);
|
|
len = 0;
|
|
}
|
|
else
|
|
{
|
|
if (processed_command)
|
|
man_prompt (man);
|
|
man_update_io_state (man);
|
|
}
|
|
}
|
|
else /* len < 0 */
|
|
{
|
|
if (man_io_error (man, "recv"))
|
|
man_reset_client_socket (man, false);
|
|
}
|
|
return len;
|
|
}
|
|
|
|
static int
|
|
man_write (struct management *man)
|
|
{
|
|
const int size_hint = 1024;
|
|
int sent = 0;
|
|
const struct buffer *buf;
|
|
|
|
buffer_list_aggregate(man->connection.out, size_hint);
|
|
buf = buffer_list_peek (man->connection.out);
|
|
if (buf && BLEN (buf))
|
|
{
|
|
const int len = min_int (size_hint, BLEN (buf));
|
|
sent = send (man->connection.sd_cli, BPTR (buf), len, MSG_NOSIGNAL);
|
|
if (sent >= 0)
|
|
{
|
|
buffer_list_advance (man->connection.out, sent);
|
|
}
|
|
else if (sent < 0)
|
|
{
|
|
if (man_io_error (man, "send"))
|
|
man_reset_client_socket (man, false);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Reset output state to MS_CC_WAIT_(READ|WRITE)
|
|
*/
|
|
man_update_io_state (man);
|
|
|
|
return sent;
|
|
}
|
|
|
|
static void
|
|
man_connection_clear (struct man_connection *mc)
|
|
{
|
|
CLEAR (*mc);
|
|
|
|
/* set initial state */
|
|
mc->state = MS_INITIAL;
|
|
|
|
/* clear socket descriptors */
|
|
mc->sd_top = SOCKET_UNDEFINED;
|
|
mc->sd_cli = SOCKET_UNDEFINED;
|
|
}
|
|
|
|
static void
|
|
man_persist_init (struct management *man,
|
|
const int log_history_cache,
|
|
const int echo_buffer_size,
|
|
const int state_buffer_size)
|
|
{
|
|
struct man_persist *mp = &man->persist;
|
|
if (!mp->defined)
|
|
{
|
|
CLEAR (*mp);
|
|
|
|
/* initialize log history store */
|
|
mp->log = log_history_init (log_history_cache);
|
|
|
|
/*
|
|
* Initialize virtual output object, so that functions
|
|
* which write to a virtual_output object can be redirected
|
|
* here to the management object.
|
|
*/
|
|
mp->vout.func = virtual_output_callback_func;
|
|
mp->vout.arg = man;
|
|
mp->vout.flags_default = M_CLIENT;
|
|
msg_set_virtual_output (&mp->vout);
|
|
|
|
/*
|
|
* Initialize --echo list
|
|
*/
|
|
man->persist.echo = log_history_init (echo_buffer_size);
|
|
|
|
/*
|
|
* Initialize --state list
|
|
*/
|
|
man->persist.state = log_history_init (state_buffer_size);
|
|
|
|
mp->defined = true;
|
|
}
|
|
}
|
|
|
|
static void
|
|
man_persist_close (struct man_persist *mp)
|
|
{
|
|
if (mp->log)
|
|
{
|
|
msg_set_virtual_output (NULL);
|
|
log_history_close (mp->log);
|
|
}
|
|
|
|
if (mp->echo)
|
|
log_history_close (mp->echo);
|
|
|
|
if (mp->state)
|
|
log_history_close (mp->state);
|
|
|
|
CLEAR (*mp);
|
|
}
|
|
|
|
static void
|
|
man_settings_init (struct man_settings *ms,
|
|
const char *addr,
|
|
const int port,
|
|
const char *pass_file,
|
|
const char *client_user,
|
|
const char *client_group,
|
|
const int log_history_cache,
|
|
const int echo_buffer_size,
|
|
const int state_buffer_size,
|
|
const char *write_peer_info_file,
|
|
const int remap_sigusr1,
|
|
const unsigned int flags)
|
|
{
|
|
if (!ms->defined)
|
|
{
|
|
CLEAR (*ms);
|
|
|
|
ms->flags = flags;
|
|
ms->client_uid = -1;
|
|
ms->client_gid = -1;
|
|
|
|
/*
|
|
* Get username/password
|
|
*/
|
|
if (pass_file)
|
|
get_user_pass (&ms->up, pass_file, "Management", GET_USER_PASS_PASSWORD_ONLY);
|
|
|
|
/*
|
|
* lookup client UID/GID if specified
|
|
*/
|
|
if (client_user)
|
|
{
|
|
struct user_state s;
|
|
get_user (client_user, &s);
|
|
ms->client_uid = user_state_uid (&s);
|
|
msg (D_MANAGEMENT, "MANAGEMENT: client_uid=%d", ms->client_uid);
|
|
ASSERT (ms->client_uid >= 0);
|
|
}
|
|
if (client_group)
|
|
{
|
|
struct group_state s;
|
|
get_group (client_group, &s);
|
|
ms->client_gid = group_state_gid (&s);
|
|
msg (D_MANAGEMENT, "MANAGEMENT: client_gid=%d", ms->client_gid);
|
|
ASSERT (ms->client_gid >= 0);
|
|
}
|
|
|
|
ms->write_peer_info_file = string_alloc (write_peer_info_file, NULL);
|
|
|
|
#if UNIX_SOCK_SUPPORT
|
|
if (ms->flags & MF_UNIX_SOCK)
|
|
sockaddr_unix_init (&ms->local_unix, addr);
|
|
else
|
|
#endif
|
|
{
|
|
/*
|
|
* Initialize socket address
|
|
*/
|
|
ms->local.sa.sin_family = AF_INET;
|
|
ms->local.sa.sin_addr.s_addr = 0;
|
|
ms->local.sa.sin_port = htons (port);
|
|
|
|
/*
|
|
* Run management over tunnel, or
|
|
* separate channel?
|
|
*/
|
|
if (streq (addr, "tunnel") && !(flags & MF_CONNECT_AS_CLIENT))
|
|
{
|
|
ms->management_over_tunnel = true;
|
|
}
|
|
else
|
|
{
|
|
ms->local.sa.sin_addr.s_addr = getaddr
|
|
(GETADDR_RESOLVE|GETADDR_WARN_ON_SIGNAL|GETADDR_FATAL, addr, 0, NULL, NULL);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Log history and echo buffer may need to be resized
|
|
*/
|
|
ms->log_history_cache = log_history_cache;
|
|
ms->echo_buffer_size = echo_buffer_size;
|
|
ms->state_buffer_size = state_buffer_size;
|
|
|
|
/*
|
|
* Set remap sigusr1 flags
|
|
*/
|
|
if (remap_sigusr1 == SIGHUP)
|
|
ms->mansig |= MANSIG_MAP_USR1_TO_HUP;
|
|
else if (remap_sigusr1 == SIGTERM)
|
|
ms->mansig |= MANSIG_MAP_USR1_TO_TERM;
|
|
|
|
ms->defined = true;
|
|
}
|
|
}
|
|
|
|
static void
|
|
man_settings_close (struct man_settings *ms)
|
|
{
|
|
free (ms->write_peer_info_file);
|
|
CLEAR (*ms);
|
|
}
|
|
|
|
|
|
static void
|
|
man_connection_init (struct management *man)
|
|
{
|
|
if (man->connection.state == MS_INITIAL)
|
|
{
|
|
#ifdef WIN32
|
|
/*
|
|
* This object is a sort of TCP/IP helper
|
|
* for Windows.
|
|
*/
|
|
net_event_win32_init (&man->connection.ne32);
|
|
#endif
|
|
|
|
/*
|
|
* Allocate helper objects for command line input and
|
|
* command output from/to the socket.
|
|
*/
|
|
man->connection.in = command_line_new (1024);
|
|
man->connection.out = buffer_list_new (0);
|
|
|
|
/*
|
|
* Initialize event set for standalone usage, when we are
|
|
* running outside of the primary event loop.
|
|
*/
|
|
{
|
|
int maxevents = 1;
|
|
man->connection.es = event_set_init (&maxevents, EVENT_METHOD_FAST);
|
|
}
|
|
|
|
/*
|
|
* Listen/connect socket
|
|
*/
|
|
if (man->settings.flags & MF_CONNECT_AS_CLIENT)
|
|
man_connect (man);
|
|
else
|
|
man_listen (man);
|
|
}
|
|
}
|
|
|
|
static void
|
|
man_connection_close (struct management *man)
|
|
{
|
|
struct man_connection *mc = &man->connection;
|
|
|
|
if (mc->es)
|
|
event_free (mc->es);
|
|
#ifdef WIN32
|
|
net_event_win32_close (&mc->ne32);
|
|
#endif
|
|
if (socket_defined (mc->sd_top))
|
|
{
|
|
man_close_socket (man, mc->sd_top);
|
|
man_delete_unix_socket (man);
|
|
}
|
|
if (socket_defined (mc->sd_cli))
|
|
man_close_socket (man, mc->sd_cli);
|
|
if (mc->in)
|
|
command_line_free (mc->in);
|
|
if (mc->out)
|
|
buffer_list_free (mc->out);
|
|
#ifdef MANAGEMENT_DEF_AUTH
|
|
in_extra_reset (&man->connection, false);
|
|
#endif
|
|
man_connection_clear (mc);
|
|
}
|
|
|
|
struct management *
|
|
management_init (void)
|
|
{
|
|
struct management *man;
|
|
ALLOC_OBJ_CLEAR (man, struct management);
|
|
|
|
man_persist_init (man,
|
|
MANAGEMENT_LOG_HISTORY_INITIAL_SIZE,
|
|
MANAGEMENT_ECHO_BUFFER_SIZE,
|
|
MANAGEMENT_STATE_BUFFER_SIZE);
|
|
|
|
man_connection_clear (&man->connection);
|
|
|
|
return man;
|
|
}
|
|
|
|
bool
|
|
management_open (struct management *man,
|
|
const char *addr,
|
|
const int port,
|
|
const char *pass_file,
|
|
const char *client_user,
|
|
const char *client_group,
|
|
const int log_history_cache,
|
|
const int echo_buffer_size,
|
|
const int state_buffer_size,
|
|
const char *write_peer_info_file,
|
|
const int remap_sigusr1,
|
|
const unsigned int flags)
|
|
{
|
|
bool ret = false;
|
|
|
|
/*
|
|
* Save the settings only if they have not
|
|
* been saved before.
|
|
*/
|
|
man_settings_init (&man->settings,
|
|
addr,
|
|
port,
|
|
pass_file,
|
|
client_user,
|
|
client_group,
|
|
log_history_cache,
|
|
echo_buffer_size,
|
|
state_buffer_size,
|
|
write_peer_info_file,
|
|
remap_sigusr1,
|
|
flags);
|
|
|
|
/*
|
|
* The log is initially sized to MANAGEMENT_LOG_HISTORY_INITIAL_SIZE,
|
|
* but may be changed here. Ditto for echo and state buffers.
|
|
*/
|
|
log_history_resize (man->persist.log, man->settings.log_history_cache);
|
|
log_history_resize (man->persist.echo, man->settings.echo_buffer_size);
|
|
log_history_resize (man->persist.state, man->settings.state_buffer_size);
|
|
|
|
/*
|
|
* If connection object is uninitialized and we are not doing
|
|
* over-the-tunnel management, then open (listening) connection.
|
|
*/
|
|
if (man->connection.state == MS_INITIAL)
|
|
{
|
|
if (!man->settings.management_over_tunnel)
|
|
{
|
|
man_connection_init (man);
|
|
ret = true;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
management_close (struct management *man)
|
|
{
|
|
man_connection_close (man);
|
|
man_settings_close (&man->settings);
|
|
man_persist_close (&man->persist);
|
|
free (man);
|
|
}
|
|
|
|
void
|
|
management_set_callback (struct management *man,
|
|
const struct management_callback *cb)
|
|
{
|
|
man->persist.standalone_disabled = true;
|
|
man->persist.callback = *cb;
|
|
}
|
|
|
|
void
|
|
management_clear_callback (struct management *man)
|
|
{
|
|
man->persist.standalone_disabled = false;
|
|
man->persist.hold_release = false;
|
|
CLEAR (man->persist.callback);
|
|
man_output_list_push_finalize (man); /* flush output queue */
|
|
}
|
|
|
|
void
|
|
management_set_state (struct management *man,
|
|
const int state,
|
|
const char *detail,
|
|
const in_addr_t tun_local_ip,
|
|
const in_addr_t tun_remote_ip)
|
|
{
|
|
if (man->persist.state && (!(man->settings.flags & MF_SERVER) || state < OPENVPN_STATE_CLIENT_BASE))
|
|
{
|
|
struct gc_arena gc = gc_new ();
|
|
struct log_entry e;
|
|
const char *out = NULL;
|
|
|
|
update_time ();
|
|
CLEAR (e);
|
|
e.timestamp = now;
|
|
e.u.state = state;
|
|
e.string = detail;
|
|
e.local_ip = tun_local_ip;
|
|
e.remote_ip = tun_remote_ip;
|
|
|
|
log_history_add (man->persist.state, &e);
|
|
|
|
if (man->connection.state_realtime)
|
|
out = log_entry_print (&e, LOG_PRINT_STATE_PREFIX
|
|
| LOG_PRINT_INT_DATE
|
|
| LOG_PRINT_STATE
|
|
| LOG_PRINT_LOCAL_IP
|
|
| LOG_PRINT_REMOTE_IP
|
|
| LOG_PRINT_CRLF
|
|
| LOG_ECHO_TO_LOG, &gc);
|
|
|
|
if (out)
|
|
man_output_list_push (man, out);
|
|
|
|
gc_free (&gc);
|
|
}
|
|
}
|
|
|
|
#ifdef MANAGEMENT_DEF_AUTH
|
|
|
|
static bool
|
|
env_filter_match (const char *env_str, const int env_filter_level)
|
|
{
|
|
static const char *env_names[] = {
|
|
"username=",
|
|
"password=",
|
|
"X509_0_CN=",
|
|
"tls_serial_0=",
|
|
"untrusted_ip=",
|
|
"ifconfig_local=",
|
|
"ifconfig_netmask=",
|
|
"daemon_start_time=",
|
|
"daemon_pid=",
|
|
"dev=",
|
|
"ifconfig_pool_remote_ip=",
|
|
"ifconfig_pool_netmask=",
|
|
"time_duration=",
|
|
"bytes_sent=",
|
|
"bytes_received="
|
|
};
|
|
if (env_filter_level >= 1)
|
|
{
|
|
size_t i;
|
|
for (i = 0; i < SIZE(env_names); ++i)
|
|
{
|
|
const char *en = env_names[i];
|
|
const size_t len = strlen(en);
|
|
if (strncmp(env_str, en, len) == 0)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
else
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
man_output_env (const struct env_set *es, const bool tail, const int env_filter_level)
|
|
{
|
|
if (es)
|
|
{
|
|
struct env_item *e;
|
|
for (e = es->list; e != NULL; e = e->next)
|
|
{
|
|
if (e->string && (!env_filter_level || env_filter_match(e->string, env_filter_level)))
|
|
msg (M_CLIENT, ">CLIENT:ENV,%s", e->string);
|
|
}
|
|
}
|
|
if (tail)
|
|
msg (M_CLIENT, ">CLIENT:ENV,END");
|
|
}
|
|
|
|
static void
|
|
man_output_extra_env (struct management *man)
|
|
{
|
|
struct gc_arena gc = gc_new ();
|
|
struct env_set *es = env_set_create (&gc);
|
|
if (man->persist.callback.n_clients)
|
|
{
|
|
const int nclients = (*man->persist.callback.n_clients) (man->persist.callback.arg);
|
|
setenv_int (es, "n_clients", nclients);
|
|
}
|
|
man_output_env (es, false, man->connection.env_filter_level);
|
|
gc_free (&gc);
|
|
}
|
|
|
|
static bool
|
|
validate_peer_info_line(const char *line)
|
|
{
|
|
uint8_t c;
|
|
int state = 0;
|
|
while ((c=*line++))
|
|
{
|
|
switch (state)
|
|
{
|
|
case 0:
|
|
case 1:
|
|
if (c == '=' && state == 1)
|
|
state = 2;
|
|
else if (isalnum(c) || c == '_')
|
|
state = 1;
|
|
else
|
|
return false;
|
|
case 2:
|
|
if (isprint(c))
|
|
;
|
|
else
|
|
return false;
|
|
}
|
|
}
|
|
return (state == 2);
|
|
}
|
|
|
|
static void
|
|
man_output_peer_info_env (struct management *man, struct man_def_auth_context *mdac)
|
|
{
|
|
char line[256];
|
|
if (man->persist.callback.get_peer_info)
|
|
{
|
|
const char *peer_info = (*man->persist.callback.get_peer_info) (man->persist.callback.arg, mdac->cid);
|
|
if (peer_info)
|
|
{
|
|
struct buffer buf;
|
|
buf_set_read (&buf, (const uint8_t *) peer_info, strlen(peer_info));
|
|
while (buf_parse (&buf, '\n', line, sizeof (line)))
|
|
{
|
|
chomp (line);
|
|
if (validate_peer_info_line(line))
|
|
{
|
|
msg (M_CLIENT, ">CLIENT:ENV,%s", line);
|
|
}
|
|
else
|
|
msg (D_MANAGEMENT, "validation failed on peer_info line received from client");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
management_notify_client_needing_auth (struct management *management,
|
|
const unsigned int mda_key_id,
|
|
struct man_def_auth_context *mdac,
|
|
const struct env_set *es)
|
|
{
|
|
if (!(mdac->flags & DAF_CONNECTION_CLOSED))
|
|
{
|
|
const char *mode = "CONNECT";
|
|
if (mdac->flags & DAF_CONNECTION_ESTABLISHED)
|
|
mode = "REAUTH";
|
|
msg (M_CLIENT, ">CLIENT:%s,%lu,%u", mode, mdac->cid, mda_key_id);
|
|
man_output_extra_env (management);
|
|
man_output_peer_info_env(management, mdac);
|
|
man_output_env (es, true, management->connection.env_filter_level);
|
|
mdac->flags |= DAF_INITIAL_AUTH;
|
|
}
|
|
}
|
|
|
|
void
|
|
management_connection_established (struct management *management,
|
|
struct man_def_auth_context *mdac,
|
|
const struct env_set *es)
|
|
{
|
|
mdac->flags |= DAF_CONNECTION_ESTABLISHED;
|
|
msg (M_CLIENT, ">CLIENT:ESTABLISHED,%lu", mdac->cid);
|
|
man_output_extra_env (management);
|
|
man_output_env (es, true, management->connection.env_filter_level);
|
|
}
|
|
|
|
void
|
|
management_notify_client_close (struct management *management,
|
|
struct man_def_auth_context *mdac,
|
|
const struct env_set *es)
|
|
{
|
|
if ((mdac->flags & DAF_INITIAL_AUTH) && !(mdac->flags & DAF_CONNECTION_CLOSED))
|
|
{
|
|
msg (M_CLIENT, ">CLIENT:DISCONNECT,%lu", mdac->cid);
|
|
man_output_env (es, true, management->connection.env_filter_level);
|
|
mdac->flags |= DAF_CONNECTION_CLOSED;
|
|
}
|
|
}
|
|
|
|
void
|
|
management_learn_addr (struct management *management,
|
|
struct man_def_auth_context *mdac,
|
|
const struct mroute_addr *addr,
|
|
const bool primary)
|
|
{
|
|
struct gc_arena gc = gc_new ();
|
|
if ((mdac->flags & DAF_INITIAL_AUTH) && !(mdac->flags & DAF_CONNECTION_CLOSED))
|
|
{
|
|
msg (M_CLIENT, ">CLIENT:ADDRESS,%lu,%s,%d",
|
|
mdac->cid,
|
|
mroute_addr_print_ex (addr, MAPF_SUBNET, &gc),
|
|
BOOL_CAST (primary));
|
|
}
|
|
gc_free (&gc);
|
|
}
|
|
|
|
#endif
|
|
|
|
void
|
|
management_echo (struct management *man, const char *string, const bool pull)
|
|
{
|
|
if (man->persist.echo)
|
|
{
|
|
struct gc_arena gc = gc_new ();
|
|
struct log_entry e;
|
|
const char *out = NULL;
|
|
|
|
update_time ();
|
|
CLEAR (e);
|
|
e.timestamp = now;
|
|
e.string = string;
|
|
e.u.intval = BOOL_CAST (pull);
|
|
|
|
log_history_add (man->persist.echo, &e);
|
|
|
|
if (man->connection.echo_realtime)
|
|
out = log_entry_print (&e, LOG_PRINT_INT_DATE|LOG_PRINT_ECHO_PREFIX|LOG_PRINT_CRLF|MANAGEMENT_ECHO_FLAGS, &gc);
|
|
|
|
if (out)
|
|
man_output_list_push (man, out);
|
|
|
|
gc_free (&gc);
|
|
}
|
|
}
|
|
|
|
void
|
|
management_post_tunnel_open (struct management *man, const in_addr_t tun_local_ip)
|
|
{
|
|
/*
|
|
* If we are running management over the tunnel,
|
|
* this is the place to initialize the connection.
|
|
*/
|
|
if (man->settings.management_over_tunnel
|
|
&& man->connection.state == MS_INITIAL)
|
|
{
|
|
/* listen on our local TUN/TAP IP address */
|
|
man->settings.local.sa.sin_addr.s_addr = htonl (tun_local_ip);
|
|
man_connection_init (man);
|
|
}
|
|
|
|
}
|
|
|
|
void
|
|
management_pre_tunnel_close (struct management *man)
|
|
{
|
|
if (man->settings.management_over_tunnel)
|
|
man_connection_close (man);
|
|
}
|
|
|
|
void
|
|
management_auth_failure (struct management *man, const char *type, const char *reason)
|
|
{
|
|
if (reason)
|
|
msg (M_CLIENT, ">PASSWORD:Verification Failed: '%s' ['%s']", type, reason);
|
|
else
|
|
msg (M_CLIENT, ">PASSWORD:Verification Failed: '%s'", type);
|
|
}
|
|
|
|
static inline bool
|
|
man_persist_state (unsigned int *persistent, const int n)
|
|
{
|
|
if (persistent)
|
|
{
|
|
if (*persistent == (unsigned int)n)
|
|
return false;
|
|
*persistent = n;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
#ifdef WIN32
|
|
|
|
void
|
|
management_socket_set (struct management *man,
|
|
struct event_set *es,
|
|
void *arg,
|
|
unsigned int *persistent)
|
|
{
|
|
if (man->connection.state != MS_INITIAL)
|
|
{
|
|
event_t ev = net_event_win32_get_event (&man->connection.ne32);
|
|
net_event_win32_reset_write (&man->connection.ne32);
|
|
|
|
switch (man->connection.state)
|
|
{
|
|
case MS_LISTEN:
|
|
if (man_persist_state (persistent, 1))
|
|
event_ctl (es, ev, EVENT_READ, arg);
|
|
break;
|
|
case MS_CC_WAIT_READ:
|
|
if (man_persist_state (persistent, 2))
|
|
event_ctl (es, ev, EVENT_READ, arg);
|
|
break;
|
|
case MS_CC_WAIT_WRITE:
|
|
if (man_persist_state (persistent, 3))
|
|
event_ctl (es, ev, EVENT_READ|EVENT_WRITE, arg);
|
|
break;
|
|
default:
|
|
ASSERT (0);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
management_io (struct management *man)
|
|
{
|
|
if (man->connection.state != MS_INITIAL)
|
|
{
|
|
long net_events;
|
|
net_event_win32_reset (&man->connection.ne32);
|
|
net_events = net_event_win32_get_event_mask (&man->connection.ne32);
|
|
|
|
if (net_events & FD_CLOSE)
|
|
{
|
|
man_reset_client_socket (man, false);
|
|
}
|
|
else
|
|
{
|
|
if (man->connection.state == MS_LISTEN)
|
|
{
|
|
if (net_events & FD_ACCEPT)
|
|
{
|
|
man_accept (man);
|
|
net_event_win32_clear_selected_events (&man->connection.ne32, FD_ACCEPT);
|
|
}
|
|
}
|
|
else if (man->connection.state == MS_CC_WAIT_READ || man->connection.state == MS_CC_WAIT_WRITE)
|
|
{
|
|
if (net_events & FD_READ)
|
|
{
|
|
while (man_read (man) > 0)
|
|
;
|
|
net_event_win32_clear_selected_events (&man->connection.ne32, FD_READ);
|
|
}
|
|
|
|
if (net_events & FD_WRITE)
|
|
{
|
|
int status;
|
|
status = man_write (man);
|
|
if (status < 0 && WSAGetLastError() == WSAEWOULDBLOCK)
|
|
{
|
|
net_event_win32_clear_selected_events (&man->connection.ne32, FD_WRITE);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#else
|
|
|
|
void
|
|
management_socket_set (struct management *man,
|
|
struct event_set *es,
|
|
void *arg,
|
|
unsigned int *persistent)
|
|
{
|
|
switch (man->connection.state)
|
|
{
|
|
case MS_LISTEN:
|
|
if (man_persist_state (persistent, 1))
|
|
event_ctl (es, man->connection.sd_top, EVENT_READ, arg);
|
|
break;
|
|
case MS_CC_WAIT_READ:
|
|
if (man_persist_state (persistent, 2))
|
|
event_ctl (es, man->connection.sd_cli, EVENT_READ, arg);
|
|
break;
|
|
case MS_CC_WAIT_WRITE:
|
|
if (man_persist_state (persistent, 3))
|
|
event_ctl (es, man->connection.sd_cli, EVENT_WRITE, arg);
|
|
break;
|
|
case MS_INITIAL:
|
|
break;
|
|
default:
|
|
ASSERT (0);
|
|
}
|
|
}
|
|
|
|
void
|
|
management_io (struct management *man)
|
|
{
|
|
switch (man->connection.state)
|
|
{
|
|
case MS_LISTEN:
|
|
man_accept (man);
|
|
break;
|
|
case MS_CC_WAIT_READ:
|
|
man_read (man);
|
|
break;
|
|
case MS_CC_WAIT_WRITE:
|
|
man_write (man);
|
|
break;
|
|
case MS_INITIAL:
|
|
break;
|
|
default:
|
|
ASSERT (0);
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
static inline bool
|
|
man_standalone_ok (const struct management *man)
|
|
{
|
|
return !man->settings.management_over_tunnel && man->connection.state != MS_INITIAL;
|
|
}
|
|
|
|
static bool
|
|
man_check_for_signals (volatile int *signal_received)
|
|
{
|
|
if (signal_received)
|
|
{
|
|
get_signal (signal_received);
|
|
if (*signal_received)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Wait for socket I/O when outside primary event loop
|
|
*/
|
|
static int
|
|
man_block (struct management *man, volatile int *signal_received, const time_t expire)
|
|
{
|
|
struct timeval tv;
|
|
struct event_set_return esr;
|
|
int status = -1;
|
|
|
|
if (man_standalone_ok (man))
|
|
{
|
|
while (true)
|
|
{
|
|
event_reset (man->connection.es);
|
|
management_socket_set (man, man->connection.es, NULL, NULL);
|
|
tv.tv_usec = 0;
|
|
tv.tv_sec = 1;
|
|
if (man_check_for_signals (signal_received))
|
|
{
|
|
status = -1;
|
|
break;
|
|
}
|
|
status = event_wait (man->connection.es, &tv, &esr, 1);
|
|
update_time ();
|
|
if (man_check_for_signals (signal_received))
|
|
{
|
|
status = -1;
|
|
break;
|
|
}
|
|
|
|
if (status > 0)
|
|
break;
|
|
else if (expire && now >= expire)
|
|
{
|
|
/* set SIGINT signal if expiration time exceeded */
|
|
status = 0;
|
|
if (signal_received)
|
|
*signal_received = SIGINT;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Perform management socket output outside primary event loop
|
|
*/
|
|
static void
|
|
man_output_standalone (struct management *man, volatile int *signal_received)
|
|
{
|
|
if (man_standalone_ok (man))
|
|
{
|
|
while (man->connection.state == MS_CC_WAIT_WRITE)
|
|
{
|
|
management_io (man);
|
|
if (man->connection.state == MS_CC_WAIT_WRITE)
|
|
man_block (man, signal_received, 0);
|
|
if (signal_received && *signal_received)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Process management event loop outside primary event loop
|
|
*/
|
|
static int
|
|
man_standalone_event_loop (struct management *man, volatile int *signal_received, const time_t expire)
|
|
{
|
|
int status = -1;
|
|
if (man_standalone_ok (man))
|
|
{
|
|
status = man_block (man, signal_received, expire);
|
|
if (status > 0)
|
|
management_io (man);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
#define MWCC_PASSWORD_WAIT (1<<0)
|
|
#define MWCC_HOLD_WAIT (1<<1)
|
|
|
|
/*
|
|
* Block until client connects
|
|
*/
|
|
static void
|
|
man_wait_for_client_connection (struct management *man,
|
|
volatile int *signal_received,
|
|
const time_t expire,
|
|
unsigned int flags)
|
|
{
|
|
ASSERT (man_standalone_ok (man));
|
|
if (man->connection.state == MS_LISTEN)
|
|
{
|
|
if (flags & MWCC_PASSWORD_WAIT)
|
|
msg (D_MANAGEMENT, "Need password(s) from management interface, waiting...");
|
|
if (flags & MWCC_HOLD_WAIT)
|
|
msg (D_MANAGEMENT, "Need hold release from management interface, waiting...");
|
|
do {
|
|
man_standalone_event_loop (man, signal_received, expire);
|
|
if (signal_received && *signal_received)
|
|
break;
|
|
} while (man->connection.state == MS_LISTEN || man_password_needed (man));
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Process the management event loop for sec seconds
|
|
*/
|
|
void
|
|
management_event_loop_n_seconds (struct management *man, int sec)
|
|
{
|
|
if (man_standalone_ok (man))
|
|
{
|
|
volatile int signal_received = 0;
|
|
const bool standalone_disabled_save = man->persist.standalone_disabled;
|
|
time_t expire = 0;
|
|
|
|
man->persist.standalone_disabled = false; /* This is so M_CLIENT messages will be correctly passed through msg() */
|
|
|
|
/* set expire time */
|
|
update_time ();
|
|
if (sec)
|
|
expire = now + sec;
|
|
|
|
/* if no client connection, wait for one */
|
|
man_wait_for_client_connection (man, &signal_received, expire, 0);
|
|
if (signal_received)
|
|
return;
|
|
|
|
/* run command processing event loop */
|
|
do
|
|
{
|
|
man_standalone_event_loop (man, &signal_received, expire);
|
|
if (!signal_received)
|
|
man_check_for_signals (&signal_received);
|
|
if (signal_received)
|
|
return;
|
|
} while (expire);
|
|
|
|
/* revert state */
|
|
man->persist.standalone_disabled = standalone_disabled_save;
|
|
}
|
|
else
|
|
{
|
|
sleep (sec);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Get a username/password from management channel in standalone mode.
|
|
*/
|
|
bool
|
|
management_query_user_pass (struct management *man,
|
|
struct user_pass *up,
|
|
const char *type,
|
|
const unsigned int flags)
|
|
{
|
|
struct gc_arena gc = gc_new ();
|
|
bool ret = false;
|
|
|
|
if (man_standalone_ok (man))
|
|
{
|
|
volatile int signal_received = 0;
|
|
const bool standalone_disabled_save = man->persist.standalone_disabled;
|
|
struct buffer alert_msg = alloc_buf_gc (128, &gc);
|
|
const char *alert_type = NULL;
|
|
const char *prefix = NULL;
|
|
unsigned int up_query_mode = 0;
|
|
|
|
ret = true;
|
|
man->persist.standalone_disabled = false; /* This is so M_CLIENT messages will be correctly passed through msg() */
|
|
man->persist.special_state_msg = NULL;
|
|
|
|
CLEAR (man->connection.up_query);
|
|
|
|
if (flags & GET_USER_PASS_NEED_OK)
|
|
{
|
|
up_query_mode = UP_QUERY_NEED_OK;
|
|
prefix= "NEED-OK";
|
|
alert_type = "confirmation";
|
|
}
|
|
else if (flags & GET_USER_PASS_NEED_STR)
|
|
{
|
|
up_query_mode = UP_QUERY_NEED_STR;
|
|
prefix= "NEED-STR";
|
|
alert_type = "string";
|
|
}
|
|
else if (flags & GET_USER_PASS_PASSWORD_ONLY)
|
|
{
|
|
up_query_mode = UP_QUERY_PASS;
|
|
prefix = "PASSWORD";
|
|
alert_type = "password";
|
|
}
|
|
else
|
|
{
|
|
up_query_mode = UP_QUERY_USER_PASS;
|
|
prefix = "PASSWORD";
|
|
alert_type = "username/password";
|
|
}
|
|
buf_printf (&alert_msg, ">%s:Need '%s' %s",
|
|
prefix,
|
|
type,
|
|
alert_type);
|
|
|
|
if (flags & (GET_USER_PASS_NEED_OK | GET_USER_PASS_NEED_STR))
|
|
buf_printf (&alert_msg, " MSG:%s", up->username);
|
|
|
|
man_wait_for_client_connection (man, &signal_received, 0, MWCC_PASSWORD_WAIT);
|
|
if (signal_received)
|
|
ret = false;
|
|
|
|
if (ret)
|
|
{
|
|
man->persist.special_state_msg = BSTR (&alert_msg);
|
|
msg (M_CLIENT, "%s", man->persist.special_state_msg);
|
|
|
|
/* tell command line parser which info we need */
|
|
man->connection.up_query_mode = up_query_mode;
|
|
man->connection.up_query_type = type;
|
|
|
|
/* run command processing event loop until we get our username/password */
|
|
do
|
|
{
|
|
man_standalone_event_loop (man, &signal_received, 0);
|
|
if (!signal_received)
|
|
man_check_for_signals (&signal_received);
|
|
if (signal_received)
|
|
{
|
|
ret = false;
|
|
break;
|
|
}
|
|
} while (!man->connection.up_query.defined);
|
|
}
|
|
|
|
/* revert state */
|
|
man->connection.up_query_mode = UP_QUERY_DISABLED;
|
|
man->connection.up_query_type = NULL;
|
|
man->persist.standalone_disabled = standalone_disabled_save;
|
|
man->persist.special_state_msg = NULL;
|
|
|
|
/* pass through blank passwords */
|
|
if (!strcmp (man->connection.up_query.password, blank_up))
|
|
CLEAR (man->connection.up_query.password);
|
|
|
|
/*
|
|
* Transfer u/p to return object, zero any record
|
|
* we hold in the management object.
|
|
*/
|
|
if (ret)
|
|
{
|
|
man->connection.up_query.nocache = up->nocache; /* preserve caller's nocache setting */
|
|
*up = man->connection.up_query;
|
|
}
|
|
CLEAR (man->connection.up_query);
|
|
}
|
|
|
|
gc_free (&gc);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Return true if management_hold() would block
|
|
*/
|
|
bool
|
|
management_would_hold (struct management *man)
|
|
{
|
|
return (man->settings.flags & MF_HOLD) && !man->persist.hold_release && man_standalone_ok (man);
|
|
}
|
|
|
|
/*
|
|
* Return true if (from the management interface's perspective) OpenVPN should
|
|
* daemonize.
|
|
*/
|
|
bool
|
|
management_should_daemonize (struct management *man)
|
|
{
|
|
return management_would_hold (man) || (man->settings.flags & MF_QUERY_PASSWORDS);
|
|
}
|
|
|
|
/*
|
|
* If the hold flag is enabled, hibernate until a management client releases the hold.
|
|
* Return true if the caller should not sleep for an additional time interval.
|
|
*/
|
|
bool
|
|
management_hold (struct management *man)
|
|
{
|
|
if (management_would_hold (man))
|
|
{
|
|
volatile int signal_received = 0;
|
|
const bool standalone_disabled_save = man->persist.standalone_disabled;
|
|
|
|
man->persist.standalone_disabled = false; /* This is so M_CLIENT messages will be correctly passed through msg() */
|
|
man->persist.special_state_msg = NULL;
|
|
man->settings.mansig |= MANSIG_IGNORE_USR1_HUP;
|
|
|
|
man_wait_for_client_connection (man, &signal_received, 0, MWCC_HOLD_WAIT);
|
|
|
|
if (!signal_received)
|
|
{
|
|
man->persist.special_state_msg = ">HOLD:Waiting for hold release";
|
|
msg (M_CLIENT, "%s", man->persist.special_state_msg);
|
|
|
|
/* run command processing event loop until we get our username/password */
|
|
do
|
|
{
|
|
man_standalone_event_loop (man, &signal_received, 0);
|
|
if (!signal_received)
|
|
man_check_for_signals (&signal_received);
|
|
if (signal_received)
|
|
break;
|
|
} while (!man->persist.hold_release);
|
|
}
|
|
|
|
/* revert state */
|
|
man->persist.standalone_disabled = standalone_disabled_save;
|
|
man->persist.special_state_msg = NULL;
|
|
man->settings.mansig &= ~MANSIG_IGNORE_USR1_HUP;
|
|
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* struct command_line
|
|
*/
|
|
|
|
struct command_line *
|
|
command_line_new (const int buf_len)
|
|
{
|
|
struct command_line *cl;
|
|
ALLOC_OBJ_CLEAR (cl, struct command_line);
|
|
cl->buf = alloc_buf (buf_len);
|
|
cl->residual = alloc_buf (buf_len);
|
|
return cl;
|
|
}
|
|
|
|
void
|
|
command_line_reset (struct command_line *cl)
|
|
{
|
|
buf_clear (&cl->buf);
|
|
buf_clear (&cl->residual);
|
|
}
|
|
|
|
void
|
|
command_line_free (struct command_line *cl)
|
|
{
|
|
command_line_reset (cl);
|
|
free_buf (&cl->buf);
|
|
free_buf (&cl->residual);
|
|
free (cl);
|
|
}
|
|
|
|
void
|
|
command_line_add (struct command_line *cl, const unsigned char *buf, const int len)
|
|
{
|
|
int i;
|
|
for (i = 0; i < len; ++i)
|
|
{
|
|
if (buf[i] && (isprint(buf[i]) || buf[i] == '\n'))
|
|
{
|
|
if (!buf_write_u8 (&cl->buf, buf[i]))
|
|
buf_clear (&cl->buf);
|
|
}
|
|
}
|
|
}
|
|
|
|
const unsigned char *
|
|
command_line_get (struct command_line *cl)
|
|
{
|
|
int i;
|
|
const unsigned char *ret = NULL;
|
|
|
|
i = buf_substring_len (&cl->buf, '\n');
|
|
if (i >= 0)
|
|
{
|
|
buf_copy_excess (&cl->residual, &cl->buf, i);
|
|
buf_chomp (&cl->buf);
|
|
ret = (const unsigned char *) BSTR (&cl->buf);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
command_line_next (struct command_line *cl)
|
|
{
|
|
buf_clear (&cl->buf);
|
|
buf_copy (&cl->buf, &cl->residual);
|
|
buf_clear (&cl->residual);
|
|
}
|
|
|
|
/*
|
|
* struct log_entry
|
|
*/
|
|
|
|
const char *
|
|
log_entry_print (const struct log_entry *e, unsigned int flags, struct gc_arena *gc)
|
|
{
|
|
struct buffer out = alloc_buf_gc (ERR_BUF_SIZE, gc);
|
|
if (flags & LOG_FATAL_NOTIFY)
|
|
buf_printf (&out, ">FATAL:");
|
|
if (flags & LOG_PRINT_LOG_PREFIX)
|
|
buf_printf (&out, ">LOG:");
|
|
if (flags & LOG_PRINT_ECHO_PREFIX)
|
|
buf_printf (&out, ">ECHO:");
|
|
if (flags & LOG_PRINT_STATE_PREFIX)
|
|
buf_printf (&out, ">STATE:");
|
|
if (flags & LOG_PRINT_INT_DATE)
|
|
buf_printf (&out, "%u,", (unsigned int)e->timestamp);
|
|
if (flags & LOG_PRINT_MSG_FLAGS)
|
|
buf_printf (&out, "%s,", msg_flags_string (e->u.msg_flags, gc));
|
|
if (flags & LOG_PRINT_STATE)
|
|
buf_printf (&out, "%s,", man_state_name (e->u.state));
|
|
if (flags & LOG_PRINT_INTVAL)
|
|
buf_printf (&out, "%d,", e->u.intval);
|
|
if (e->string)
|
|
buf_printf (&out, "%s", e->string);
|
|
if (flags & LOG_PRINT_LOCAL_IP)
|
|
buf_printf (&out, ",%s", print_in_addr_t (e->local_ip, IA_EMPTY_IF_UNDEF, gc));
|
|
if (flags & LOG_PRINT_REMOTE_IP)
|
|
buf_printf (&out, ",%s", print_in_addr_t (e->remote_ip, IA_EMPTY_IF_UNDEF, gc));
|
|
if (flags & LOG_ECHO_TO_LOG)
|
|
msg (D_MANAGEMENT, "MANAGEMENT: %s", BSTR (&out));
|
|
if (flags & LOG_PRINT_CRLF)
|
|
buf_printf (&out, "\r\n");
|
|
return BSTR (&out);
|
|
}
|
|
|
|
static void
|
|
log_entry_free_contents (struct log_entry *e)
|
|
{
|
|
if (e->string)
|
|
free ((char *)e->string);
|
|
CLEAR (*e);
|
|
}
|
|
|
|
/*
|
|
* struct log_history
|
|
*/
|
|
|
|
static inline int
|
|
log_index (const struct log_history *h, int i)
|
|
{
|
|
return modulo_add (h->base, i, h->capacity);
|
|
}
|
|
|
|
static void
|
|
log_history_obj_init (struct log_history *h, int capacity)
|
|
{
|
|
CLEAR (*h);
|
|
h->capacity = capacity;
|
|
ALLOC_ARRAY_CLEAR (h->array, struct log_entry, capacity);
|
|
}
|
|
|
|
struct log_history *
|
|
log_history_init (const int capacity)
|
|
{
|
|
struct log_history *h;
|
|
ASSERT (capacity > 0);
|
|
ALLOC_OBJ (h, struct log_history);
|
|
log_history_obj_init (h, capacity);
|
|
return h;
|
|
}
|
|
|
|
static void
|
|
log_history_free_contents (struct log_history *h)
|
|
{
|
|
int i;
|
|
for (i = 0; i < h->size; ++i)
|
|
log_entry_free_contents (&h->array[log_index(h, i)]);
|
|
free (h->array);
|
|
}
|
|
|
|
void
|
|
log_history_close (struct log_history *h)
|
|
{
|
|
log_history_free_contents (h);
|
|
free (h);
|
|
}
|
|
|
|
void
|
|
log_history_add (struct log_history *h, const struct log_entry *le)
|
|
{
|
|
struct log_entry *e;
|
|
ASSERT (h->size >= 0 && h->size <= h->capacity);
|
|
if (h->size == h->capacity)
|
|
{
|
|
e = &h->array[h->base];
|
|
log_entry_free_contents (e);
|
|
h->base = log_index (h, 1);
|
|
}
|
|
else
|
|
{
|
|
e = &h->array[log_index(h, h->size)];
|
|
++h->size;
|
|
}
|
|
|
|
*e = *le;
|
|
e->string = string_alloc (le->string, NULL);
|
|
}
|
|
|
|
void
|
|
log_history_resize (struct log_history *h, const int capacity)
|
|
{
|
|
if (capacity != h->capacity)
|
|
{
|
|
struct log_history newlog;
|
|
int i;
|
|
|
|
ASSERT (capacity > 0);
|
|
log_history_obj_init (&newlog, capacity);
|
|
|
|
for (i = 0; i < h->size; ++i)
|
|
log_history_add (&newlog, &h->array[log_index(h, i)]);
|
|
|
|
log_history_free_contents (h);
|
|
*h = newlog;
|
|
}
|
|
}
|
|
|
|
const struct log_entry *
|
|
log_history_ref (const struct log_history *h, const int index)
|
|
{
|
|
if (index >= 0 && index < h->size)
|
|
return &h->array[log_index(h, (h->size - 1) - index)];
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
#if HTTP_PROXY_FALLBACK
|
|
|
|
void
|
|
management_http_proxy_fallback_notify (struct management *man, const char *type, const char *remote_ip_hint)
|
|
{
|
|
if (remote_ip_hint)
|
|
msg (M_CLIENT, ">PROXY:%s,%s", type, remote_ip_hint);
|
|
else
|
|
msg (M_CLIENT, ">PROXY:%s", type);
|
|
}
|
|
|
|
#endif /* HTTP_PROXY_FALLBACK */
|
|
|
|
#else
|
|
static void dummy(void) {}
|
|
#endif /* ENABLE_MANAGEMENT */
|