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Copy pathminieap.c
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219 lines (176 loc) · 4.98 KB
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#include "config.h"
#include "if_impl.h"
#include "packet_plugin.h"
#include "packet_builder.h"
#include "logging.h"
#include "eap_state_machine.h"
#include "sched_alarm.h"
#include "misc.h"
#include "conf_parser.h"
#include "pid_lock.h"
#include <stdlib.h>
#include <errno.h>
#include <arpa/inet.h>
#include <signal.h>
#include <time.h>
#ifdef __linux__
#include <linux/if_ether.h>
#else
#define ETH_P_PAE 0x888e
#endif
/*
* Initialize the settings.
* Note: Override values in config file with cmdline.
*/
static int init_program_config(int argc, char* argv[]) {
PROG_CONFIG* cfg;
load_default_params();
if (IS_FAIL(parse_cmdline_conf_file(argc, argv))) {
PR_ERR("配置文件路径解析出错");
goto err;
}
cfg = get_program_config();
if (IS_FAIL(parse_config_file(cfg->conffile))) {
PR_WARN("配置文件解析出错，请注意命令行参数是否完整");
}
if (IS_FAIL(parse_cmdline_opts(argc, argv))) {
PR_ERR("命令行参数解析出错");
goto err;
}
return validate_params();
err:
return FAILURE;
}
/*
* Initialize the settings. Called after plugins being selected.
* Note: Override values in config file with cmdline.
*/
static int init_plugin_config(int argc, char* argv[]) {
PROG_CONFIG *cfg = get_program_config();
packet_plugin_load_default_params();
if (IS_FAIL(packet_plugin_process_config_file(cfg->conffile))) {
PR_ERR("插件配置文件内容解析出错");
goto err;
}
if (IS_FAIL(packet_plugin_process_cmdline_opts(argc, argv))) {
PR_ERR("插件命令行参数解析出错");
goto err;
}
return packet_plugin_validate_params();
err:
return FAILURE;
}
static void packet_plugin_list_select(void* name, void* unused) {
if (IS_FAIL(select_packet_plugin((const char*)name))) {
PR_WARN("%s 插件未找到，请检查插件名称是否拼写正确", name);
}
}
/*
* Do all the initialization tasks
*/
static int init_cfg(int argc, char* argv[]) {
PROG_CONFIG* cfg = get_program_config();
/* Temporaory logs */
set_log_destination(LOG_TO_CONSOLE);
start_log();
init_if_impl_list();
init_packet_plugin_list();
PR_RAW("MiniEAP " VERSION "\n"
"Hamster Tian, 2016\n\n");
if (IS_FAIL(init_program_config(argc, argv))) {
PR_ERR("参数初始化错误");
return FAILURE;
}
list_traverse(cfg->packet_plugin_list, packet_plugin_list_select, NULL);
if (IS_FAIL(select_if_impl(cfg->if_impl))) {
PR_ERR("网络驱动插件启用失败，请检查插件名称是否拼写正确");
return FAILURE;
}
packet_plugin_print_banner();
if (IS_FAIL(init_plugin_config(argc, argv))) {
PR_ERR("插件初始化错误");
return FAILURE;
}
if (cfg->save_now) {
save_config_file();
}
/* Parsed in parse_config_file(). This is no longer needed */
conf_parser_free();
if (IS_FAIL(pid_lock_init(cfg->pidfile))) {
return FAILURE;
}
return SUCCESS;
}
static int init_if() {
PROG_CONFIG* cfg = get_program_config();
IF_IMPL* if_impl;
if_impl = get_if_impl();
if (IS_FAIL(if_impl->set_ifname(if_impl,cfg->ifname))) {
PR_ERR("设置接口名称失败");
return FAILURE;
}
if (IS_FAIL(if_impl->setup_capture_params(if_impl, ETH_P_PAE, FALSE))) {
PR_ERR("设置捕获参数失败");
return FAILURE;
}
if (IS_FAIL(if_impl->prepare_interface(if_impl))) {
PR_ERR("捕获准备失败");
return FAILURE;
}
if_impl->set_frame_handler(if_impl, eap_state_machine_recv_handler);
return SUCCESS;
}
static void apply_log_daemon_params() {
PROG_CONFIG* cfg = get_program_config();
if (cfg->daemon_type != DAEMON_FOREGROUND) {
PR_INFO("正在转入后台运行……");
if (IS_FAIL(go_background())) {
PR_WARN("无法转入后台运行");
}
}
/* Apply log destination */
close_log();
start_log();
}
static void exit_handler() {
free_if_impl();
packet_plugin_destroy();
eap_state_machine_destroy();
sched_alarm_destroy();
pid_lock_destroy();
free_config();
PR_INFO("MiniEAP 已退出");
close_log();
}
static void signal_handler(int signal) {
exit(0);
}
/*
* Detailed errors are printed where they happen, not here ...
*/
int main(int argc, char* argv[]) {
srand(time(0));
atexit(exit_handler);
signal(SIGHUP, signal_handler);
signal(SIGINT, signal_handler);
signal(SIGTERM, signal_handler);
if (IS_FAIL(init_cfg(argc, argv))) {
return FAILURE;
}
if (IS_FAIL(init_if())) {
return FAILURE;
}
if (IS_FAIL(eap_state_machine_init())) {
return FAILURE;
}
if (IS_FAIL(sched_alarm_init())) {
return FAILURE;
}
if (IS_FAIL(pid_lock_lock())) {
return FAILURE;
}
apply_log_daemon_params();
pid_lock_save_pid();
switch_to_state(EAP_STATE_PREPARING, NULL);
return 0;
}