diff options
Diffstat (limited to 'log.c')
| -rw-r--r-- | log.c | 260 |
1 files changed, 0 insertions, 260 deletions
@@ -1,260 +0,0 @@ -/* - * uAnytun - * - * uAnytun is a tiny implementation of SATP. Unlike Anytun which is a full - * featured implementation uAnytun has no support for multiple connections - * or synchronisation. It is a small single threaded implementation intended - * to act as a client on small platforms. - * The secure anycast tunneling protocol (satp) defines a protocol used - * for communication between any combination of unicast and anycast - * tunnel endpoints. It has less protocol overhead than IPSec in Tunnel - * mode and allows tunneling of every ETHER TYPE protocol (e.g. - * ethernet, ip, arp ...). satp directly includes cryptography and - * message authentication based on the methodes used by SRTP. It is - * intended to deliver a generic, scaleable and secure solution for - * tunneling and relaying of packets of any protocol. - * - * - * Copyright (C) 2007-2010 Christian Pointner <equinox@anytun.org> - * - * This file is part of uAnytun. - * - * uAnytun is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * any later version. - * - * uAnytun is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with uAnytun. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "datatypes.h" - -#include <ctype.h> -#include <string.h> -#include <stdarg.h> -#include <stdlib.h> -#include <stdio.h> - -#define SYSLOG_NAMES -#include <syslog.h> - -#include "log.h" - -log_t stdlog; - -#include "log_targets.h" - -const char* log_prio_to_string(log_prio_t prio) -{ - switch(prio) { - case ERROR: return "ERROR"; - case WARNING: return "WARNING"; - case NOTICE: return "NOTICE"; - case INFO: return "INFO"; - case DEBUG: return "DEBUG"; - } - return "UNKNOWN"; -} - -log_target_type_t log_target_parse_type(const char* conf) -{ - if(!conf) - return TARGET_UNKNOWN; - - if(!strncmp(conf, "syslog", 6)) return TARGET_SYSLOG; - if(!strncmp(conf, "file", 4)) return TARGET_FILE; - if(!strncmp(conf, "stdout", 6)) return TARGET_STDOUT; - if(!strncmp(conf, "stderr", 6)) return TARGET_STDERR; - - return TARGET_UNKNOWN; -} - -int log_targets_target_exists(log_targets_t* targets, log_target_type_t type) -{ - if(!targets && !targets->first_) - return 0; - - log_target_t* tmp = targets->first_; - while(tmp) { - if(tmp->type_ == type) - return 1; - tmp = tmp->next_; - } - return 0; -} - -int log_targets_add(log_targets_t* targets, const char* conf) -{ - if(!targets) - return -1; - - log_target_t* new_target = NULL; - int duplicates_allowed = 0; - switch(log_target_parse_type(conf)) { - case TARGET_SYSLOG: new_target = log_target_syslog_new(); break; - case TARGET_FILE: new_target = log_target_file_new(); duplicates_allowed = 1; break; - case TARGET_STDOUT: new_target = log_target_stdout_new(); break; - case TARGET_STDERR: new_target = log_target_stderr_new(); break; - default: return -3; - } - if(!new_target) - return -2; - - if(!duplicates_allowed && log_targets_target_exists(targets, new_target->type_)) { - free(new_target); - return -4; - } - - const char* prioptr = strchr(conf, ':'); - if(!prioptr || prioptr[1] == 0) { - free(new_target); - return -1; - } - prioptr++; - if(!isdigit(prioptr[0]) || (prioptr[1] != 0 && prioptr[1] != ',')) { - free(new_target); - return -1; - } - new_target->max_prio_ = prioptr[0] - '0'; - if(new_target->max_prio_ > 0) - new_target->enabled_ = 1; - - if(new_target->init != NULL) { - const char* confptr = NULL; - if(prioptr[1] != 0) - confptr = prioptr+2; - - int ret = (*new_target->init)(new_target, confptr); - if(ret) { - free(new_target); - return ret; - } - } - - if(new_target->open != NULL) - (*new_target->open)(new_target); - - - if(!targets->first_) { - targets->first_ = new_target; - } - else { - log_target_t* tmp = targets->first_; - while(tmp->next_) - tmp = tmp->next_; - - tmp->next_ = new_target; - } - return 0; -} - -void log_targets_log(log_targets_t* targets, log_prio_t prio, const char* msg) -{ - if(!targets) - return; - - log_target_t* tmp = targets->first_; - while(tmp) { - if(tmp->log != NULL && tmp->enabled_ && tmp->max_prio_ >= prio) - (*tmp->log)(tmp, prio, msg); - - tmp = tmp->next_; - } -} - -void log_targets_clear(log_targets_t* targets) -{ - if(!targets) - return; - - while(targets->first_) { - log_target_t* tmp = targets->first_; - targets->first_ = tmp->next_; - if(tmp->close != NULL) - (*tmp->close)(tmp); - if(tmp->clear != NULL) - (*tmp->clear)(tmp); - free(tmp); - } -} - - -void log_init() -{ - stdlog.max_prio_ = 0; - stdlog.targets_.first_ = NULL; -} - -void log_close() -{ - log_targets_clear(&stdlog.targets_); -} - -void update_max_prio() -{ - log_target_t* tmp = stdlog.targets_.first_; - while(tmp) { - if(tmp->enabled_ && tmp->max_prio_ > stdlog.max_prio_) - stdlog.max_prio_ = tmp->max_prio_; - - tmp = tmp->next_; - } -} - -int log_add_target(const char* conf) -{ - if(!conf) - return -1; - - int ret = log_targets_add(&stdlog.targets_, conf); - if(!ret) update_max_prio(); - return ret; -} - -void log_printf(log_prio_t prio, const char* fmt, ...) -{ - if(stdlog.max_prio_ < prio) - return; - - static char msg[MSG_LENGTH_MAX]; - va_list args; - - va_start(args, fmt); - vsnprintf(msg, MSG_LENGTH_MAX, fmt, args); - va_end(args); - - log_targets_log(&stdlog.targets_, prio, msg); -} - -void log_print_hex_dump(log_prio_t prio, const u_int8_t* buf, u_int32_t len) -{ - if(stdlog.max_prio_ < prio) - return; - - static char msg[MSG_LENGTH_MAX]; - - if(!buf) { - snprintf(msg, MSG_LENGTH_MAX, "(NULL)"); - } - else { - u_int32_t i; - int offset = snprintf(msg, MSG_LENGTH_MAX, "dump(%d): ", len); - if(offset < 0) - return; - char* ptr = &msg[offset]; - - for(i=0; i < len; i++) { - if(((i+1)*3) >= (MSG_LENGTH_MAX - offset)) - break; - snprintf(ptr, 3, "%02X ", buf[i]); - ptr+=3; - } - } - log_targets_log(&stdlog.targets_, prio, msg); -} |