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/*
���������ĸ��ӿ�, ��������ģʽ,
ÿ���������ж����߳�, ������TOPO_ACC_LINK_USER, TOPO_ACC_LINK_FWDӦ�ù��ý���/�����߳�,
��Ϊ�ڲ���NATת����, �շ���������ʹ��ͬһ��, ����Ƕ��߳�, ��Ҫ����.
����, ֧��TOPO_ACC_LINK_USER, TOPO_ACC_LINK_FWDΪ��ͬ�IJ���ģʽ,
�������÷�����ģʽ����������֮�������л���ȡ���ݰ�.
*/
#include "flowood.h"
#include "flowood_fun.h"
#include "flwd_net.h"
#include "MESA_handle_logger.h"
#include "MESA_prof_load.h"
#include <linux/limits.h>
#include <stdio.h>
#include <dlfcn.h>
#include <unistd.h>
#include <pthread.h>
#include <string.h>
typedef struct{
flwd_cap_mode_t cap_mode;
char *lib_name;
}flwd_io_lib_name_type_t;
static const flwd_io_lib_name_type_t g_packet_io_type_name_info[] =
{
{CAP_MODEL_PAG , (char *)"flwd_io_pag.so" },
{CAP_MODEL_PCAP_ONLINE , (char *)"flwd_io_pcap.so" },
{CAP_MODEL_SOCKET , (char *)"flwd_io_socket.so" },
{CAP_MODEL_PFRING , (char *)"flwd_io_pfring.so" },
{CAP_MODEL_DPDK , (char *)"flwd_io_dpdk.so" },
{CAP_MODEL_PPF , (char *)"flwd_io_ppf.so" },
{CAP_MODEL_NPACKET , (char *)"flwd_io_npacket.so" },
{CAP_MODEL_QNF , (char *)"flwd_io_qnf.so" },
{CAP_MODEL_N95 , (char *)"flwd_io_n95.so" },
{CAP_MODEL_PCAP_DUMPLIST , (char *)"flwd_io_pcap.so"},
{CAP_MODEL_TOPSEC , (char *)"flwd_io_topsec.so"},
{CAP_MODEL_IPFILE , (char *)"flwd_io_ipfile.so"},
{CAP_MODEL_MARSIOV4 , (char *)"flwd_io_marsio.so"},
{CAP_MODEL_AGENT_SMITH , (char *)"flwd_io_agent_smith.so"},
{CAP_MODEL_DPDK_VXLAN , (char *)"flwd_io_dpdk_vxlan.so"},
{CAP_MODEL_MARSIOV4_VXLAN , (char *)"flwd_io_marsio_vxlan.so"},
{CAP_MODEL_PAG_MARSIO , (char *)"flwd_io_pag_marsio.so"},
};
const flwd_packet_io_cfg_para_t g_packet_io_cfg_para[__TOPO_MODE_MAX] =
{
{TOPO_ACC_LINK_USER, FLWD_MACRO_TO_STRING(TOPO_ACC_LINK_USER), "#todo"},
{TOPO_ACC_LINK_FWD, FLWD_MACRO_TO_STRING(TOPO_ACC_LINK_FWD), "#todo"},
{TOPO_FWD_LINK_ACC, FLWD_MACRO_TO_STRING(TOPO_FWD_LINK_ACC), "#doto"},
{TOPO_FWD_LINK_GDEV, FLWD_MACRO_TO_STRING(TOPO_FWD_LINK_GDEV), "#doto"},
};
static int flwd_packet_io_lib_load(flwd_device_handle_t *global_dev_handle)
{
char full_lib_path[PATH_MAX];
void *dlopen_handle;
switch((int)global_dev_handle->io_para.cap_mode){
case CAP_MODEL_PCAP_ONLINE:
case CAP_MODEL_SOCKET:
case CAP_MODEL_MARSIOV4:
break;
default:
flwd_log(RLOG_LV_FATAL, "not support cap_mode:%d\n", (int)global_dev_handle->io_para.cap_mode);
return -1;
break;
}
snprintf(full_lib_path, PATH_MAX, "%s/%s", "ip_reuse_io_lib", g_packet_io_type_name_info[(int)global_dev_handle->io_para.cap_mode].lib_name);
dlopen_handle = dlopen(full_lib_path, RTLD_LAZY | RTLD_LOCAL);
if(NULL == dlopen_handle){
flwd_log(RLOG_LV_FATAL, "dlopen %s error, %s", full_lib_path, dlerror());
return -1;
}
global_dev_handle->low_level_io_init = (int (*)(struct __flwd_device_handle *h))dlsym(dlopen_handle, "low_level_io_init");
global_dev_handle->low_level_io_run = (void (*)(struct __flwd_device_handle *h))dlsym(dlopen_handle, "low_level_io_run");
global_dev_handle->low_level_pkt_recv = (int (*)(struct __flwd_device_handle *h, int tid, void **mbuff))dlsym(dlopen_handle, "low_level_pkt_recv");
global_dev_handle->low_level_pkt_free = (void (*)(struct __flwd_device_handle *h, int tid, void *mbuff))dlsym(dlopen_handle, "low_level_pkt_free");
global_dev_handle->low_level_mbuff_malloc = (void * (* )(struct __flwd_device_handle *h, int tid, int len)) dlsym(dlopen_handle, "low_level_mbuff_malloc");
global_dev_handle->low_level_mbuff_free = (void (* )(struct __flwd_device_handle *h, int, void *mbuff)) dlsym(dlopen_handle, "low_level_mbuff_free");
global_dev_handle->low_level_mbuff_free_after_send = (void (* )(struct __flwd_device_handle *h, int, void *mbuff)) dlsym(dlopen_handle, "low_level_mbuff_free_after_send");
global_dev_handle->low_level_mbuff_mtod = (char * (* )(void *mbuff))dlsym(dlopen_handle, "low_level_mbuff_mtod");
global_dev_handle->low_level_mbuff_data_append = (char * (*)(void *mbuff, const char *user_data, int user_data_len))dlsym(dlopen_handle, "low_level_mbuff_data_append");
global_dev_handle->low_level_mbuff_data_forward = (char * (*)(void *mbuff, int n))dlsym(dlopen_handle, "low_level_mbuff_data_forward");
global_dev_handle->low_level_mbuff_data_rearward = (char * (*)(void *mbuff, int n))dlsym(dlopen_handle, "low_level_mbuff_data_rearward");
global_dev_handle->low_level_mbuff_get_pkt_len = (int (*)(void *mbuff))dlsym(dlopen_handle, "low_level_mbuff_get_pkt_len");
global_dev_handle->low_level_mbuff_set_pkt_len = (void (*)(void *mbuff, int pkt_len)) dlsym(dlopen_handle, "low_level_mbuff_set_pkt_len");
global_dev_handle->low_level_send = (int (*)(struct __flwd_device_handle *h, int tid, void *mbuff))dlsym(dlopen_handle, "low_level_send");
return 0;
}
static void *flwd_packet_io_run_thread(void *arg)
{
flwd_device_handle_t *global_io_handle = (flwd_device_handle_t *)arg;
global_io_handle->low_level_io_run(global_io_handle);
while(1){
pause();
}
return NULL;
}
void flwd_packet_io_run(void)
{
int i;
pthread_t recv_thread_pid[FLWD_MAX_THREAD_NUM];
pthread_t run_thread_pid[FLWD_MAX_THREAD_NUM];
static int thread_seq[FLWD_MAX_THREAD_NUM];
for(i = 0; i < flwd_cfg_val.tot_thread_count; i++){
thread_seq[i] = i;
pthread_create(&recv_thread_pid[i], NULL, flwd_packet_io_work_thread, (void *)&thread_seq[i]);
}
/* NOTE:
��ijЩ�ײ�IO����Լ, ���ܵ�����io_run�����հ����̾���Ҳ��������, ��pcap_loop()�Ⱥ���, ������Ҫ��̬�����հ��߳�,
������marsio��IO��, �������հ���ѯģʽ, flwd_packet_io_run_thread�̴߳�����һֱ����, ʵ��������.
*/
for(i = 0; i < __TOPO_MODE_MAX; i++){
if(flwd_global_val.global_io_handle[i].low_level_io_handle != NULL){
pthread_create(&run_thread_pid[i], NULL, flwd_packet_io_run_thread, (void *)&flwd_global_val.global_io_handle[i]);
}
}
}
/*
ÿ�����س�ʼ�������豸.
*/
int flwd_packet_io_init(flwd_topology_t first_top_mode, flwd_topology_t second_top_mode)
{
char str_tmp[128];
int ret, int_tmp;
int i;
for(i = 0; i < (int)__TOPO_MODE_MAX; i++){
if((i != first_top_mode) && (i != second_top_mode)){
continue;
}
/* NOTE: ��ȡ�����ļ�, ��ȡ��������ز��� */
flwd_global_val.global_io_handle[i].io_para.topo_mode = (flwd_topology_t)i;
MESA_load_profile_int_def(FLWD_CONFIG_FILE, g_packet_io_cfg_para[i].cfg_file_section, "cap_mode", &int_tmp, 0);
if(int_tmp <= 0 || int_tmp > CAP_MODEL_PAG_MARSIO){
flwd_log(RLOG_LV_FATAL, "get config %s->cap_mode error!", g_packet_io_cfg_para[i].cfg_file_section);
return -1;
}
flwd_global_val.global_io_handle[i].io_para.cap_mode = (flwd_cap_mode_t)int_tmp;
MESA_load_profile_string_def(FLWD_CONFIG_FILE, g_packet_io_cfg_para[i].cfg_file_section, "device_name", str_tmp, 128, "#");
if('#' == str_tmp[0]){
flwd_log(RLOG_LV_FATAL, "get config %s->device_name error!", g_packet_io_cfg_para[i].cfg_file_section);
return -1;
}
flwd_global_val.global_io_handle[i].io_para.device_name = strdup(str_tmp);
MESA_load_profile_string_def(FLWD_CONFIG_FILE, g_packet_io_cfg_para[i].cfg_file_section, "pkt_filter", str_tmp, 128, "#");
if('#' == str_tmp[0]){
flwd_global_val.global_io_handle[i].io_para.pkt_filter = NULL;
}else{
flwd_global_val.global_io_handle[i].io_para.pkt_filter = strdup(str_tmp);
}
/* NOTE: dlopen�ײ�IO����, ��io_pcap.so, io_marsio.so��, ��ȡ��غ���ָ�� */
ret = flwd_packet_io_lib_load(&flwd_global_val.global_io_handle[i]);
if(ret < 0){
flwd_log(RLOG_LV_FATAL, "%s, flwd_packet_io_lib_load() error!", g_packet_io_cfg_para[i].cfg_file_section);
return -1;
}
ret = flwd_global_val.global_io_handle[i].low_level_io_init(&flwd_global_val.global_io_handle[i]);
if(ret < 0){
flwd_log(RLOG_LV_FATAL, "%s low_level_init() error!", g_packet_io_cfg_para[i].cfg_file_section);
return -1;
}
}
flwd_log(RLOG_LV_DEBUG, "flwd_packet_io_init success!");
return 0;
}
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