コード例 #1
0
ファイル: http.c プロジェクト: pawitp/wifidog-gateway
void http_callback_logout(httpd *webserver, request *r)
{
	t_client *client;
	s_config *config = config_get_config();

	LOCK_CLIENT_LIST();
	client = client_list_find_by_ip(r->clientAddr);

	/* Send logout to auth server if client is logged in */
	if (client != NULL) {
		t_authresponse authresponse;
		char *ip = strdup(client->ip);
		char *mac = strdup(client->mac);
		char *token = strdup(client->token);
		unsigned long long incoming = client->counters.incoming;
		unsigned long long outgoing = client->counters.outgoing;

		debug(LOG_INFO, "Got manual logout from client ip %s, mac %s, token %s",
			client->ip, client->mac, client->token);

		fw_deny(client->ip, client->mac, client->fw_connection_state);
		client_list_delete(client);

		/* Unlock client list here since auth_server_request may take a while */
		UNLOCK_CLIENT_LIST();

		/* Advertise the logout if we have an auth server */
		if (config->auth_servers != NULL) {
			auth_server_request(&authresponse, REQUEST_TYPE_LOGOUT, ip,
								mac, token, incoming, outgoing);
		}

		free(ip);
		free(mac);
		free(token);
	} else {
		/* Do nothing if the client is not in the client list (i.e. not logged in) */
		debug(LOG_INFO, "Got manual logout from client %s, but client not in list", r->clientAddr);
		UNLOCK_CLIENT_LIST();
	}

	if (config->auth_servers != NULL) {
		/* Re-direct them to auth server */
		char *urlFragment = NULL;
		t_auth_serv	*auth_server = get_auth_server();

		safe_asprintf(&urlFragment, "%smessage=%s",
			auth_server->authserv_msg_script_path_fragment,
			GATEWAY_MESSAGE_ACCOUNT_LOGGED_OUT
		);
		http_send_redirect_to_auth(r, urlFragment, "Redirect to logout message");
		free(urlFragment);
	}
}
コード例 #2
0
ファイル: auth.c プロジェクト: zombie9080/wifi
/**
 * @brief Logout a client and report to auth server.
 *
 * This function assumes it is being called with the client lock held! This
 * function remove the client from the client list and free its memory, so
 * client is no langer valid when this method returns.
 *
 * @param client Points to the client to be logged out
 */
void
logout_client(t_client * client)
{
    t_authresponse authresponse;
    const s_config *config = config_get_config();
    fw_deny(client);
    client_list_remove(client);

    /* Advertise the logout if we have an auth server */
    if (config->auth_servers != NULL) {
        UNLOCK_CLIENT_LIST();
        auth_server_request(&authresponse, REQUEST_TYPE_LOGOUT,
                            client->ip, client->mac, client->token,
                            client->counters.incoming, client->counters.outgoing);

        if (authresponse.authcode == AUTH_ERROR)
            debug(LOG_WARNING, "Auth server error when reporting logout");
        LOCK_CLIENT_LIST();
    }

    client_free_node(client);
}
コード例 #3
0
ファイル: firewall.c プロジェクト: awaysoft/apfree_wifidog
void
update_trusted_mac_list_status(void)
{
    t_authresponse authresponse;
	t_trusted_mac *p1 = NULL, *tmac_list = NULL;
    s_config *config = config_get_config();

	if(trusted_mac_list_dup(&tmac_list) == 0) {
		debug(LOG_INFO, "update_trusted_mac_list_status: list is empty");
		return;
	}
	
	for(p1 = tmac_list; p1 != NULL; p1 = p1->next) {
		update_trusted_mac_status(p1);
		debug(LOG_INFO, "update_trusted_mac_list_status: %s %s %d", p1->ip, p1->mac, p1->is_online);
		if (config->auth_servers != NULL && p1->is_online) {
            auth_server_request(&authresponse, REQUEST_TYPE_COUNTERS, p1->ip, p1->mac, "null", 0,
                                0, 0, 0, 0, 0, "null", is_device_wired(p1->mac));
        }
			
	}
	
	clear_dup_trusted_mac_list(tmac_list);
}
コード例 #4
0
ファイル: http.c プロジェクト: bluecliff/skywifi
    void
http_callback_auth(httpd *webserver, request *r)
{
    t_client	*client;
    httpVar * token;
    char	*mac;
    httpVar *logout = httpdGetVariableByName(r, "logout");
    if ((token = httpdGetVariableByName(r, "token"))) {
        /* They supplied variable "token" */
        if (!(mac = arp_get(r->clientAddr))) {
            /* We could not get their MAC address */
            debug(LOG_ERR, "Failed to retrieve MAC address for ip %s", r->clientAddr);
            send_http_page(r, "WiFiDog Error", "Failed to retrieve your MAC address");
        } else {
            /* We have their MAC address */

            LOCK_CLIENT_LIST();

            if ((client = client_list_find(r->clientAddr, mac)) == NULL) {
                debug(LOG_DEBUG, "New client for %s", r->clientAddr);
                client_list_append(r->clientAddr, mac, token->value);
            } else if (logout) {
                t_authresponse  authresponse;
                s_config *config = config_get_config();
                unsigned long long incoming = client->counters.incoming;
                unsigned long long outgoing = client->counters.outgoing;
                char *ip = safe_strdup(client->ip);
                char *urlFragment = NULL;
                t_auth_serv	*auth_server = get_auth_server();

                fw_deny(client->ip, client->mac, client->fw_connection_state);
                client_list_delete(client);
                debug(LOG_DEBUG, "Got logout from %s", client->ip);

                /* Advertise the logout if we have an auth server */
                if (config->auth_servers != NULL) {
                    UNLOCK_CLIENT_LIST();
                    auth_server_request(&authresponse, REQUEST_TYPE_LOGOUT, ip, mac, token->value,
                            incoming, outgoing);
                    LOCK_CLIENT_LIST();

                    /* Re-direct them to auth server */
                    debug(LOG_INFO, "Got manual logout from client ip %s, mac %s, token %s"
                            "- redirecting them to logout message", client->ip, client->mac, client->token);
                    safe_asprintf(&urlFragment, "%smessage=%s",
                            auth_server->authserv_msg_script_path_fragment,
                            GATEWAY_MESSAGE_ACCOUNT_LOGGED_OUT
                            );
                    http_send_redirect_to_auth(r, urlFragment, "Redirect to logout message");
                    free(urlFragment);
                }
                free(ip);
            }
            else {
                debug(LOG_DEBUG, "Client for %s is already in the client list", client->ip);
            }
            UNLOCK_CLIENT_LIST();
            if (!logout) {
                authenticate_client(r);
            }
            free(mac);
        }
    } else {
        /* They did not supply variable "token" */
        send_http_page(r, "WiFiDog error", "Invalid token");
    }
}
コード例 #5
0
/**Probably a misnomer, this function actually refreshes the entire client list's traffic counter, re-authenticates every client with the central server and update's the central servers traffic counters and notifies it if a client has logged-out.
 * @todo Make this function smaller and use sub-fonctions
 */
void
fw_sync_with_authserver(void)
{
    t_authresponse authresponse;
    t_client *p1, *p2, *worklist, *tmp;
    s_config *config = config_get_config();

    if (-1 == iptables_fw_counters_update()) {
        debug(LOG_ERR, "Could not get counters from firewall!");
        return;
    }

    LOCK_CLIENT_LIST();

    /* XXX Ideally, from a thread safety PoV, this function should build a list of client pointers,
     * iterate over the list and have an explicit "client still valid" check while list is locked.
     * That way clients can disappear during the cycle with no risk of trashing the heap or getting
     * a SIGSEGV.
     */
    client_list_dup(&worklist);
    UNLOCK_CLIENT_LIST();

    for (p1 = p2 = worklist; NULL != p1; p1 = p2) {
        p2 = p1->next;

        /* Ping the client, if he responds it'll keep activity on the link.
         * However, if the firewall blocks it, it will not help.  The suggested
         * way to deal witht his is to keep the DHCP lease time extremely
         * short:  Shorter than config->checkinterval * config->clienttimeout */
        icmp_ping(p1->ip);
        /* Update the counters on the remote server only if we have an auth server */
        if (config->auth_servers != NULL) {
            auth_server_request(&authresponse, REQUEST_TYPE_COUNTERS, p1->ip, p1->mac, p1->token, p1->counters.incoming,
                                p1->counters.outgoing, p1->counters.incoming_delta, p1->counters.outgoing_delta);
        }

        time_t current_time = time(NULL);
        debug(LOG_INFO,
              "Checking client %s for timeout:  Last updated %ld (%ld seconds ago), timeout delay %ld seconds, current time %ld, ",
              p1->ip, p1->counters.last_updated, current_time - p1->counters.last_updated,
              config->checkinterval * config->clienttimeout, current_time);
        if (p1->counters.last_updated + (config->checkinterval * config->clienttimeout) <= current_time) {
            /* Timing out user */
            debug(LOG_INFO, "%s - Inactive for more than %ld seconds, removing client and denying in firewall",
                  p1->ip, config->checkinterval * config->clienttimeout);
            LOCK_CLIENT_LIST();
            tmp = client_list_find_by_client(p1);
            if (NULL != tmp) {
                logout_client(tmp);
            } else {
                debug(LOG_NOTICE, "Client was already removed. Not logging out.");
            }
            UNLOCK_CLIENT_LIST();
        } else {
            /*
             * This handles any change in
             * the status this allows us
             * to change the status of a
             * user while he's connected
             *
             * Only run if we have an auth server
             * configured!
             */
            LOCK_CLIENT_LIST();
            tmp = client_list_find_by_client(p1);
            if (NULL == tmp) {
                UNLOCK_CLIENT_LIST();
                debug(LOG_NOTICE, "Client was already removed. Skipping auth processing");
                continue;       /* Next client please */
            }

            if (config->auth_servers != NULL) {
                switch (authresponse.authcode) {
                case AUTH_DENIED:
                    debug(LOG_NOTICE, "%s - Denied. Removing client and firewall rules", tmp->ip);
                    fw_deny(tmp);
                    client_list_delete(tmp);
                    break;

                case AUTH_VALIDATION_FAILED:
                    debug(LOG_NOTICE, "%s - Validation timeout, now denied. Removing client and firewall rules",
                          tmp->ip);
                    fw_deny(tmp);
                    client_list_delete(tmp);
                    break;

                case AUTH_ALLOWED:
                    if (tmp->fw_connection_state != FW_MARK_KNOWN) {
                        debug(LOG_INFO, "%s - Access has changed to allowed, refreshing firewall and clearing counters",
                              tmp->ip);
                        //WHY did we deny, then allow!?!? benoitg 2007-06-21
                        //fw_deny(tmp->ip, tmp->mac, tmp->fw_connection_state); /* XXX this was possibly to avoid dupes. */

                        if (tmp->fw_connection_state != FW_MARK_PROBATION) {
                            tmp->counters.incoming_delta =
                             tmp->counters.outgoing_delta =
                             tmp->counters.incoming =
                             tmp->counters.outgoing = 0;
                        } else {
                            //We don't want to clear counters if the user was in validation, it probably already transmitted data..
                            debug(LOG_INFO,
                                  "%s - Skipped clearing counters after all, the user was previously in validation",
                                  tmp->ip);
                        }
                        fw_allow(tmp, FW_MARK_KNOWN);
                    }
                    break;

                case AUTH_VALIDATION:
                    /*
                     * Do nothing, user
                     * is in validation
                     * period
                     */
                    debug(LOG_INFO, "%s - User in validation period", tmp->ip);
                    break;

                case AUTH_ERROR:
                    debug(LOG_WARNING, "Error communicating with auth server - leaving %s as-is for now", tmp->ip);
                    break;

                default:
                    debug(LOG_ERR, "I do not know about authentication code %d", authresponse.authcode);
                    break;
                }
            }
            UNLOCK_CLIENT_LIST();
        }
    }

    client_list_destroy(worklist);
}
コード例 #6
0
ファイル: auth.c プロジェクト: zombie9080/wifi
/** Authenticates a single client against the central server and returns when done
 * Alters the firewall rules depending on what the auth server says
@param r httpd request struct
*/
void
authenticate_client(request * r)
{
    t_client *client, *tmp;
    t_authresponse auth_response;
    char *token;
    httpVar *var;
    char *urlFragment = NULL;
    s_config *config = NULL;
    t_auth_serv *auth_server = NULL;

    LOCK_CLIENT_LIST();

    client = client_dup(client_list_find_by_ip(r->clientAddr));

    UNLOCK_CLIENT_LIST();

    if (client == NULL) {
        debug(LOG_ERR, "authenticate_client(): Could not find client for %s", r->clientAddr);
        return;
    }

    /* Users could try to log in(so there is a valid token in
     * request) even after they have logged in, try to deal with
     * this */
    if ((var = httpdGetVariableByName(r, "token")) != NULL) {
        token = safe_strdup(var->value);
    } else {
        token = safe_strdup(client->token);
    }

    /* 
     * At this point we've released the lock while we do an HTTP request since it could
     * take multiple seconds to do and the gateway would effectively be frozen if we
     * kept the lock.
     */
    auth_server_request(&auth_response, REQUEST_TYPE_LOGIN, client->ip, client->mac, token, 0, 0);

    LOCK_CLIENT_LIST();

    /* can't trust the client to still exist after n seconds have passed */
    tmp = client_list_find_by_client(client);

    if (NULL == tmp) {
        debug(LOG_ERR, "authenticate_client(): Could not find client node for %s (%s)", client->ip, client->mac);
        UNLOCK_CLIENT_LIST();
        client_list_destroy(client);    /* Free the cloned client */
        free(token);
        return;
    }

    client_list_destroy(client);        /* Free the cloned client */
    client = tmp;

    if (strcmp(token, client->token) != 0) {
        /* If token changed, save it. */
        free(client->token);
        client->token = token;
    } else {
        free(token);
    }

    /* Prepare some variables we'll need below */
    config = config_get_config();
    auth_server = get_auth_server();

    switch (auth_response.authcode) {

    case AUTH_ERROR:
        /* Error talking to central server */
        debug(LOG_ERR, "Got ERROR from central server authenticating token %s from %s at %s", client->token, client->ip,
              client->mac);
        send_http_page(r, "Error!", "Error: We did not get a valid answer from the central server");
        break;

    case AUTH_DENIED:
        /* Central server said invalid token */
        debug(LOG_INFO,
              "Got DENIED from central server authenticating token %s from %s at %s - deleting from firewall and redirecting them to denied message",
              client->token, client->ip, client->mac);
        fw_deny(client);
        safe_asprintf(&urlFragment, "%smessage=%s",
                      auth_server->authserv_msg_script_path_fragment, GATEWAY_MESSAGE_DENIED);
        http_send_redirect_to_auth(r, urlFragment, "Redirect to denied message");
        free(urlFragment);
        break;

    case AUTH_VALIDATION:
        /* They just got validated for X minutes to check their email */
        debug(LOG_INFO, "Got VALIDATION from central server authenticating token %s from %s at %s"
              "- adding to firewall and redirecting them to activate message", client->token, client->ip, client->mac);
        fw_allow(client, FW_MARK_PROBATION);
        safe_asprintf(&urlFragment, "%smessage=%s",
                      auth_server->authserv_msg_script_path_fragment, GATEWAY_MESSAGE_ACTIVATE_ACCOUNT);
        http_send_redirect_to_auth(r, urlFragment, "Redirect to activate message");
        free(urlFragment);
        break;

    case AUTH_ALLOWED:
        /* Logged in successfully as a regular account */
        debug(LOG_INFO, "Got ALLOWED from central server authenticating token %s from %s at %s - "
              "adding to firewall and redirecting them to portal", client->token, client->ip, client->mac);
        fw_allow(client, FW_MARK_KNOWN);
        // add by zp 
        debug(LOG_INFO,"goto fw_allow()...");
        served_this_session++;
        safe_asprintf(&urlFragment, "%sgw_id=%s", auth_server->authserv_portal_script_path_fragment, config->gw_id);
        // modify by zp 
        http_send_redirect_to_auth(r, urlFragment, "Redirect to portal");
        //char * text = "advertisement";
        //http_send_redirect_to_advertisement(r, urlFragment, text);
        free(urlFragment);
        break;

    case AUTH_VALIDATION_FAILED:
        /* Client had X minutes to validate account by email and didn't = too late */
        debug(LOG_INFO, "Got VALIDATION_FAILED from central server authenticating token %s from %s at %s "
              "- redirecting them to failed_validation message", client->token, client->ip, client->mac);
        safe_asprintf(&urlFragment, "%smessage=%s",
                      auth_server->authserv_msg_script_path_fragment, GATEWAY_MESSAGE_ACCOUNT_VALIDATION_FAILED);
        http_send_redirect_to_auth(r, urlFragment, "Redirect to failed validation message");
        free(urlFragment);
        break;

    default:
        debug(LOG_WARNING,
              "I don't know what the validation code %d means for token %s from %s at %s - sending error message",
              auth_response.authcode, client->token, client->ip, client->mac);
        send_http_page(r, "Internal Error", "We can not validate your request at this time");
        break;

    }

    UNLOCK_CLIENT_LIST();
    return;
}
コード例 #7
0
ファイル: auth.c プロジェクト: kissthink/multidog
/** Authenticates a single client against the central server and returns when done
 * Alters the firewall rules depending on what the auth server says
@param r httpd request struct
*/
void
authenticate_client(request *r, char *gw_id)
{
	t_client	*client;
	t_authresponse	auth_response;
	char	*mac,
		*token;
	char *urlFragment = NULL;
	s_config	*config = NULL;
	t_auth_serv	*auth_server = NULL;

	LOCK_CLIENT_LIST();

	client = client_list_find_by_ip(r->clientAddr);

	if (client == NULL) {
		debug(LOG_ERR, "Could not find client for %s", r->clientAddr);
		UNLOCK_CLIENT_LIST();
		return;
	}
	
	mac = safe_strdup(client->mac);
	token = safe_strdup(client->token);
	
	UNLOCK_CLIENT_LIST();
	
	/* 
	 * At this point we've released the lock while we do an HTTP request since it could
	 * take multiple seconds to do and the gateway would effectively be frozen if we
	 * kept the lock.
	 */
	auth_server_request(&auth_response, REQUEST_TYPE_LOGIN, r->clientAddr, mac, token, 0, 0, gw_id);
	
	LOCK_CLIENT_LIST();
	
	/* can't trust the client to still exist after n seconds have passed */
	client = client_list_find(r->clientAddr, mac);
	
	if (client == NULL) {
		debug(LOG_ERR, "Could not find client node for %s (%s)", r->clientAddr, mac);
		UNLOCK_CLIENT_LIST();
		free(token);
		free(mac);
		return;
	}
	
	free(token);
	free(mac);

	/* Prepare some variables we'll need below */
	config = config_get_config();
	auth_server = get_auth_server();

	switch(auth_response.authcode) {

	case AUTH_ERROR:
		/* Error talking to central server */
		debug(LOG_ERR, "Got %d from central server authenticating token %s from %s at %s", auth_response, client->token, client->ip, client->mac);
		send_http_page(r, "Error!", "Error: We did not get a valid answer from the central server");
		break;

	case AUTH_DENIED:
		/* Central server said invalid token */
		debug(LOG_INFO, "Got DENIED from central server authenticating token %s from %s at %s - redirecting them to denied message", client->token, client->ip, client->mac);
		safe_asprintf(&urlFragment, "%smessage=%s",
			auth_server->authserv_msg_script_path_fragment,
			GATEWAY_MESSAGE_DENIED
		);
		http_send_redirect_to_auth(r, urlFragment, "Redirect to portal", gw_id);
		//set connection logged out (xperimental)
		//snprintf(,client->token, client->ip, client->mac)	
		/*{
			char mysqlCmd[256];
			sprintf(mysqlCmd,"echo \"DELETE FROM connections WHERE token='%s';\"|mysql -uauthpuppy -pauthpuppydev authpuppy > /tmp/wifidog_deauth_mysql_result",client->token);
			debug(LOG_WARNING,"issuing this would help: %s",mysqlCmd);
			//system(mysqlCmd);//kills wifidog somehow *g
		}*/
		free(urlFragment);
		
		//for race conditions, remove from firewall
		fw_deny(client->ip, client->mac, client->fw_connection_state);
		//experimental delete client from list
                client_list_delete(client);

		break;

    case AUTH_VALIDATION:
		/* They just got validated for X minutes to check their email */
		debug(LOG_INFO, "Got VALIDATION from central server authenticating token %s from %s at %s"
				"- adding to firewall and redirecting them to activate message", client->token,
				client->ip, client->mac);
		client->fw_connection_state = FW_MARK_PROBATION;
		fw_allow(client->ip, client->mac, FW_MARK_PROBATION);
		safe_asprintf(&urlFragment, "%smessage=%s",
			auth_server->authserv_msg_script_path_fragment,
			GATEWAY_MESSAGE_ACTIVATE_ACCOUNT
		);
		http_send_redirect_to_auth(r, urlFragment, "Redirect to activate message", gw_id);
		free(urlFragment);
	    break;

    case AUTH_ALLOWED:
		/* Logged in successfully as a regular account */
		debug(LOG_INFO, "Got ALLOWED from central server authenticating token %s from %s at %s - "
				"adding to firewall and redirecting them to portal", client->token, client->ip, client->mac);
		client->fw_connection_state = FW_MARK_KNOWN;
		fw_allow(client->ip, client->mac, FW_MARK_KNOWN);
        served_this_session++;
		safe_asprintf(&urlFragment, "%sgw_id=%s",
			auth_server->authserv_portal_script_path_fragment,
			gw_id
		);
		http_send_redirect_to_auth(r, urlFragment, "Redirect to portal", gw_id);
		free(urlFragment);
	    break;

    case AUTH_VALIDATION_FAILED:
		 /* Client had X minutes to validate account by email and didn't = too late */
		debug(LOG_INFO, "Got VALIDATION_FAILED from central server authenticating token %s from %s at %s "
				"- redirecting them to failed_validation message", client->token, client->ip, client->mac);
		safe_asprintf(&urlFragment, "%smessage=%s",
			auth_server->authserv_msg_script_path_fragment,
			GATEWAY_MESSAGE_ACCOUNT_VALIDATION_FAILED
		);
		http_send_redirect_to_auth(r, urlFragment, "Redirect to failed validation message", gw_id);
		free(urlFragment);
	    break;

    default:
		debug(LOG_WARNING, "I don't know what the validation code %d means for token %s from %s at %s - sending error message", auth_response.authcode, client->token, client->ip, client->mac);
		send_http_page(r, "Internal Error", "We can not validate your request at this time");
	    break;

	}

	UNLOCK_CLIENT_LIST();
	return;
}