void update_summary_cs(struct timespec dmaci,int len,int num,int t){ // t is the type of wifi bands
struct timespec tmp1={0};
copy_timespec(&tmp1,&summary[t].overall_busywait);
summary[t].overall_busywait = timespec_add(tmp1,dmaci);
summary[t].mine_packets = summary[t].mine_packets + num;
summary[t].mine_bytes = summary[t].mine_bytes + len;
}
static void copy_root_item(struct btrfs_util_subvolume_info *subvol,
const struct btrfs_root_item *root)
{
subvol->flags = le64_to_cpu(root->flags);
memcpy(subvol->uuid, root->uuid, sizeof(subvol->uuid));
memcpy(subvol->parent_uuid, root->parent_uuid,
sizeof(subvol->parent_uuid));
memcpy(subvol->received_uuid, root->received_uuid,
sizeof(subvol->received_uuid));
subvol->generation = le64_to_cpu(root->generation);
subvol->ctransid = le64_to_cpu(root->ctransid);
subvol->otransid = le64_to_cpu(root->otransid);
subvol->stransid = le64_to_cpu(root->stransid);
subvol->rtransid = le64_to_cpu(root->rtransid);
copy_timespec(&subvol->ctime, &root->ctime);
copy_timespec(&subvol->otime, &root->otime);
copy_timespec(&subvol->stime, &root->stime);
copy_timespec(&subvol->rtime, &root->rtime);
}
void check_print(struct packet_info *p,int t){
copy_timespec(&inf_end_timestamp,&p->te);
//printf("start time is %f, end time is %f\n",inf_start_timestamp,inf_end_timestamp);
if (timespec_sub(inf_end_timestamp,inf_start_timestamp).tv_sec > FREQUENT_UPDATE_PERIOD_SECONDS)
{
//print out
print_inf(W2G);
print_inf(W5G);
//print_summary();
memset(cs,0,sizeof(cs));
memset(lccs_client,0,sizeof(lccs_client));
ht[0].tv_sec = 0;
ht[0].tv_nsec = 0;
ht[1].tv_sec = 0;
ht[1].tv_nsec = 0;
reset_summary(W2G);
reset_summary(W5G);
copy_timespec(&inf_start_timestamp,&inf_end_timestamp);
}
}
int cal_inf(struct packet_info * p){
int t; // type of bands
t = wap_type(p->dev_name);
if(t == -1){
printk(KERN_DEBUG "[warning]wAP dosen't have this kind of interface!\n");
return;
}
if(p->phy_rate == 0 && p->ampdu != 2){
printk(KERN_DEBUG "[warning]There is one packet whose phyrate == 0!\n");
memcpy(&last_p[t],p,sizeof(last_p[t]));// update last p
previous_is_ampdu[t] = p->ampdu;
return;
}
struct timespec th={0},transmit={0},dmaci={0},tmp1={0},tmp2={0},difs={0},tr={0};
if (previous_is_ampdu[t] != 0){
if (p->ampdu != 2){
dmaci = cal_dmaci_ampdu(t);
if (ampdu[t].retry > 0){ // all packets are retried packets
update_summary_ht(dmaci,ampdu[t].len*ampdu[t].num,ampdu[t].num,t);
}else{
divide_inf(backup_store[t],ampdu[t].th,ampdu[t].te,dmaci,0,1,t);
update_summary_cs(dmaci,ampdu[t].len*ampdu[t].num,1,t);//overall busywait, ampdu regards as one
}
clear_timespec(&tmp1);
tmp1 = timespec_sub(ampdu[t].te,ampdu[t].th);
summary[t].overall_extra_time = timespec_add(summary[t].overall_extra_time,tmp1);//overall transmit
summary[t].wing = summary[t].wing + timespec_div(dmaci,tmp1);
printk(KERN_DEBUG "[ampdu,%ld.%ld]%ld.%ld,%d,%ld.%ld,%ld.%ld,ifindex=%d,%s,num=%d,size=%d,retry=%d\n",ampdu[t].tw.tv_sec,ampdu[t].tw.tv_nsec,ampdu[t].te.tv_sec,ampdu[t].te.tv_nsec,ampdu[t].rate,dmaci.tv_sec,dmaci.tv_nsec,tmp1.tv_sec,tmp1.tv_nsec,ampdu[t].ifindex,ampdu[t].dev_name,ampdu[t].num,ampdu[t].len,ampdu[t].retry);
//clear the ampdu structure
memset(&du[t],0,sizeof(ampdu[t]));
}
}
if(p->ampdu == 1){ //first packet of aggregation
backup_sniffer_packet(p->tw,p->te,1,t);
ampdu[t].rate = p->phy_rate;
ampdu[t].ifindex = p->ifindex;
memcpy(ampdu[t].dev_name,p->dev_name,IFNAMSIZ);
copy_timespec(&du[t].te,&p->te);
copy_timespec(&du[t].last_te,&last_p[t].te);
copy_timespec(&du[t].tw,&p->tw);
ampdu[t].num = 1;
ampdu[t].len = p->len;
memcpy(&last_p[t],p,sizeof(last_p[t]));// update last p
check_print(p,t);
if (p->wlan_retry > 0){
ampdu[t].retry = p->wlan_retry;
}
previous_is_ampdu[t] = p->ampdu;
}else if(p->ampdu==2){ //rest of packets of aggregation
p->phy_rate = ampdu[t].rate;
copy_timespec(&du[t].tw,&p->tw);
ampdu[t].num = ampdu[t].num + 1;
if ( p->wlan_retry >= 1){
update_ht_transmit(p->len,p->phy_rate,t);
}
}else{
// non-aggregation packet
th.tv_sec = p->tw.tv_sec;
th.tv_nsec = p->tw.tv_nsec;
if (timespec_compare(&th,&last_p[t].te)<0){
th=last_p[t].te;
}
memcpy(&last_p[t],p,sizeof(last_p[t])); //update previous packet
if (p->tw.tv_nsec == 0){
previous_is_ampdu[t] = p->ampdu;
return;
}
transmit = cal_transmit_time(p->len,p->phy_rate);
difs.tv_sec =0;
difs.tv_nsec = CONST_TIME[t]*1000;
tmp1 = timespec_sub(p->te,th);
tmp2 = timespec_sub(tmp1,transmit);
dmaci = timespec_sub(tmp2,difs);
if (dmaci.tv_sec < 0 || dmaci.tv_nsec < 0){
dmaci.tv_sec = 0;
dmaci.tv_nsec = 0;
}
if(p->wlan_retry == 0){
update_summary_cs(dmaci,p->len,1,t);
divide_inf(store[t],th,p->te,dmaci,p->wlan_retry,0,t);
}else{
update_summary_ht(dmaci,p->len,1,t);
}
summary[t].overall_extra_time = timespec_add(summary[t].overall_extra_time,tmp1);
summary[t].wing = summary[t].wing + timespec_div(dmaci,tmp1);
printk(KERN_DEBUG "[unampdu,%ld.%ld]%ld.%ld,%d,%ld.%ld,%ld.%ld,ifindex=%d,%s,num=%d,size=%d,retry=%d\n",p->tw.tv_sec,p->tw.tv_nsec,p->te.tv_sec,p->te.tv_nsec,p->phy_rate,dmaci.tv_sec,dmaci.tv_nsec,tmp1.tv_sec,tmp1.tv_nsec,p->ifindex,p->dev_name,1,p->len,p->wlan_retry);
check_print(p,t);
previous_is_ampdu[t] = p->ampdu;
}
}
