void sr_integ_init(struct sr_instance* sr)
{
printf(" ** sr_integ_init(..) called \n");
/* Register router state with global instance */
struct sr_router* subsystem = (struct sr_router*)malloc(sizeof(struct sr_router));
assert(subsystem);
sr_set_subsystem(get_sr(), subsystem);
} /* -- sr_integ_init -- */
void sr_integ_init(struct sr_instance* sr)
{
printf(" ** sr_integ_init(..) called \n");
sr_router* subsystem = (sr_router*)malloc(sizeof(sr_router));
assert(subsystem);
sr_set_subsystem(get_sr(), subsystem);
// initialize arp and interfaces and routing table
arp_cache_init(subsystem);
interface_init(subsystem);
rrtable_init(subsystem);
hw_rrtable_init(subsystem);
//enable ospf by default
toggle_ospf_status(subsystem, TRUE);
//disable reroute/multipath
toggle_reroute_multipath_status(subsystem, FALSE);
//flush hw registers
#ifdef _CPUMODE_
hw_init(subsystem);
writeReg(&subsystem->hw_device, CPCI_REG_CTRL, 0x00010100);
usleep(2000);
#endif
} /* -- sr_integ_init -- */
void init(struct sr_instance* sr)
{
unsigned int iseed = (unsigned int)time(NULL);
srand(iseed+1);
router_state* rs = (router_state*)malloc(sizeof(router_state));//router_state，一个结构体，在or_data_types.h定义
assert(rs);
bzero(rs, sizeof(router_state));
rs->sr = sr;
#ifdef _CPUMODE_
init_rawsockets(rs);
#endif
/** INITIALIZE LOCKS **/
rs->write_lock = (pthread_mutex_t*)malloc(sizeof(pthread_mutex_t));
if (pthread_mutex_init(rs->write_lock, NULL) != 0) {
perror("Lock init error");
exit(1);
}
rs->arp_cache_lock = (pthread_rwlock_t*)malloc(sizeof(pthread_rwlock_t));
if (pthread_rwlock_init(rs->arp_cache_lock, NULL) != 0) {
perror("Lock init error");
exit(1);
}
rs->arp_queue_lock = (pthread_rwlock_t*)malloc(sizeof(pthread_rwlock_t));
if (pthread_rwlock_init(rs->arp_queue_lock, NULL) != 0) {
perror("Lock init error");
exit(1);
}
rs->if_list_lock = (pthread_rwlock_t*)malloc(sizeof(pthread_rwlock_t));
if (pthread_rwlock_init(rs->if_list_lock, NULL) != 0) {
perror("Lock init error");
exit(1);
}
rs->rtable_lock = (pthread_rwlock_t*)malloc(sizeof(pthread_rwlock_t));
if (pthread_rwlock_init(rs->rtable_lock, NULL) != 0) {
perror("Lock init error");
exit(1);
}
// --- CCDN lock
rs->ctable_lock = (pthread_rwlock_t*)malloc(sizeof(pthread_rwlock_t));
if (pthread_rwlock_init(rs->ctable_lock, NULL) != 0) {
perror("Lock init error");
exit(1);
}
rs->cli_commands_lock = (pthread_rwlock_t*)malloc(sizeof(pthread_rwlock_t));
if (pthread_rwlock_init(rs->cli_commands_lock, NULL) != 0) {
perror("Lock init error");
exit(1);
}
rs->nat_table_mutex = (pthread_mutex_t*)malloc(sizeof(pthread_mutex_t));
if (pthread_mutex_init(rs->nat_table_mutex, NULL) != 0) {
perror("Mutex init error");
exit(1);
}
rs->nat_table_cond = (pthread_cond_t*)malloc(sizeof(pthread_cond_t));
if (pthread_cond_init(rs->nat_table_cond, NULL) != 0) {
perror("Nat Table cond init error");
exit(1);
}
rs->local_ip_filter_list_mutex = (pthread_mutex_t*)malloc(sizeof(pthread_mutex_t));
if (pthread_mutex_init(rs->local_ip_filter_list_mutex, NULL) != 0) {
perror("Local IP Filter Mutex init error");
exit(1);
}
rs->log_dumper_mutex = (pthread_mutex_t*)malloc(sizeof(pthread_mutex_t));
if (pthread_mutex_init(rs->log_dumper_mutex, NULL) != 0) {
perror("Log dumper mutex init error");
exit(1);
}
rs->sr = sr;
rs->area_id = PWOSPF_AREA_ID;
rs->pwospf_hello_interval = PWOSPF_NEIGHBOR_TIMEOUT;
rs->pwospf_lsu_interval = PWOSPF_LSUINT;
rs->pwospf_lsu_broadcast = 1;
rs->arp_ttl = INITIAL_ARP_TIMEOUT;
rs->nat_timeout = 120;
/* clear stats */
int i, j;
for (i = 0; i < 8; ++i) {
for (j = 0; j < 4; ++j) {
rs->stats_last[i][j] = 0;
}
for (j = 0; j < 2; ++j) {
rs->stats_avg[i][j] = 0.0;
}
}
rs->stats_last_time.tv_sec = 0;
rs->stats_last_time.tv_usec = 0;
#ifdef _CPUMODE_
rs->is_netfpga = 1;
char* name = (char*)calloc(1, 32);
strncpy(name, sr->interface, 32);
rs->netfpga.device_name = name;
rs->netfpga.fd = 0;
rs->netfpga.net_iface = 0;
if (check_iface(&(rs->netfpga))) {
printf("Failure connecting to NETFPGA\n");
exit(1);
}
if (openDescriptor(&(rs->netfpga))) {
printf("Failure connecting to NETFPGA\n");
exit(1);
}
/* initialize the hardware */
init_hardware(rs);
#else
rs->is_netfpga = 0;
#endif
if (rs->is_netfpga) {
/* Add 224.0.0.5 as a local IP Filter */
struct in_addr ip;
inet_pton(AF_INET, "224.0.0.5", &ip);
add_local_ip_filter(rs, &ip, "pwospf");
}
/* Initialize SPING data */
rs->sping_mutex = (pthread_mutex_t*)malloc(sizeof(pthread_mutex_t));
if (pthread_mutex_init(rs->sping_mutex, NULL) != 0) {
perror("Sping mutex init error");
exit(1);
}
rs->sping_cond = (pthread_cond_t*)malloc(sizeof(pthread_cond_t));
if (pthread_cond_init(rs->sping_cond, NULL) != 0) {
perror("Sping cond init error");
exit(1);
}
/* Initialize LSU data */
rs->pwospf_router_list_lock = (pthread_mutex_t*)malloc(sizeof(pthread_mutex_t));
if (pthread_mutex_init(rs->pwospf_router_list_lock, NULL) != 0) {
perror("Routing list mutex init error");
exit(1);
}
rs->pwospf_lsu_bcast_mutex = (pthread_mutex_t*)malloc(sizeof(pthread_mutex_t));
if (pthread_mutex_init(rs->pwospf_lsu_bcast_mutex, NULL) != 0) {
perror("LSU bcast mutex init error");
exit(1);
}
rs->pwospf_lsu_bcast_cond = (pthread_cond_t*)malloc(sizeof(pthread_cond_t));
if (pthread_cond_init(rs->pwospf_lsu_bcast_cond, NULL) != 0) {
perror("LSU bcast cond init error");
exit(1);
}
rs->pwospf_lsu_queue_lock = (pthread_mutex_t*)malloc(sizeof(pthread_mutex_t));
if (pthread_mutex_init(rs->pwospf_lsu_queue_lock, NULL) != 0) {
perror("Lsu queue mutex init error");
exit(1);
}
/* Initialize PWOSPF Dijkstra Thread Mutex/Cond Var */
rs->dijkstra_mutex = (pthread_mutex_t*)malloc(sizeof(pthread_mutex_t));
if (pthread_mutex_init(rs->dijkstra_mutex, NULL) != 0) {
perror("Dijkstra mutex init error");
exit(1);
}
rs->dijkstra_cond = (pthread_cond_t*)malloc(sizeof(pthread_cond_t));
if (pthread_cond_init(rs->dijkstra_cond, NULL) != 0) {
perror("Dijkstra cond init error");
exit(1);
}
/* Initialize WWW Mutex/Cond Var */
rs->www_mutex = (pthread_mutex_t*)malloc(sizeof(pthread_mutex_t));
if (pthread_mutex_init(rs->www_mutex, NULL) != 0) {
perror("WWW mutex init error");
exit(1);
}
rs->www_cond = (pthread_cond_t*)malloc(sizeof(pthread_cond_t));
if (pthread_cond_init(rs->www_cond, NULL) != 0) {
perror("WWW cond init error");
exit(1);
}
/* Initialize Stats Mutex */
rs->stats_mutex = (pthread_mutex_t*)malloc(sizeof(pthread_mutex_t));
if (pthread_mutex_init(rs->stats_mutex, NULL) != 0) {
perror("Stats mutex init error");
exit(1);
}
// --- CCDN , sr里面有一个指针是sr->interface_subsystem = rs，而main函数的最前面，rs->sr=sr
sr_set_subsystem(sr, (void*)rs);
// --- CCDN , pthread_create用于创建一个线程，第一个参数返回线程id，第二个设置线程属性（NULL表默认），第三个指向线程调用的函数，第四个传递参数
/** SPAWN THE ARP QUEUE THREAD **/
rs->arp_thread = (pthread_t*)malloc(sizeof(pthread_t));
if(pthread_create(rs->arp_thread, NULL, arp_thread, (void *)sr) != 0) {
perror("Thread create error");
}
/** SPAWN THE PWOSPF HELLO BROADCAST THREAD **/
rs->pwospf_hello_thread = (pthread_t*)malloc(sizeof(pthread_t));
if(pthread_create(rs->pwospf_hello_thread, NULL, pwospf_hello_thread, (void *)sr) != 0) {
perror("Thread create error");
}
/** SPAWN THE PWOSPF LSU BROADCAST THREAD **/
rs->pwospf_lsu_thread = (pthread_t*)malloc(sizeof(pthread_t));
if(pthread_create(rs->pwospf_lsu_thread, NULL, pwospf_lsu_thread, (void *)sr) != 0) {
perror("Thread create error");
}
/** SPAWN THE PWOSPF LSU BCAST TIMEOUT THREAD **/
rs->pwospf_lsu_timeout_thread = (pthread_t*)malloc(sizeof(pthread_t));
if(pthread_create(rs->pwospf_lsu_timeout_thread, NULL, pwospf_lsu_timeout_thread, (void*)sr) != 0) {
perror("Thread create error");
}
/** SPAWN THE DIJKSTRA THREAD **/
rs->pwospf_dijkstra_thread = (pthread_t*)malloc(sizeof(pthread_t));
if(pthread_create(rs->pwospf_dijkstra_thread, NULL, dijkstra_thread, (void*)get_router_state(sr)) != 0) {
perror("Thread create error");
}
/** SPAWN THE PWOSPF LSU BCAST THREAD **/
rs->pwospf_lsu_bcast_thread = (pthread_t*)malloc(sizeof(pthread_t));
if(pthread_create(rs->pwospf_lsu_bcast_thread, NULL, pwospf_lsu_bcast_thread, (void*)sr) != 0) {
perror("Thread create error");
}
/** Spawn the NAT Maintenance Thread **/
/*
rs->nat_maintenance_thread = (pthread_t*)malloc(sizeof(pthread_t));
if(pthread_create(rs->nat_maintenance_thread, NULL, nat_maintenance_thread, (void*)rs) != 0) {
perror("Thread create error");
}
*/
/* if we are on the NETFPGA spawn the stats thread */
if (rs->is_netfpga) {
rs->stats_thread = (pthread_t*)malloc(sizeof(pthread_t));
if(pthread_create(rs->stats_thread, NULL, netfpga_stats, (void*)rs) != 0) {
perror("Thread create error");
}
}
}
