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Adjusted handling of totals. All promisc packets are now added to the incoming

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total.
This commit is contained in:
pdw
2002-03-28 12:14:20 +00:00
parent afa7248c03
commit d85d096413
3 changed files with 19 additions and 2 deletions
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10
iftop.c
View File

@@ -113,6 +113,7 @@ static void handle_packet(char* args, const struct pcap_pkthdr* pkthdr,const cha
struct ip* iptr; struct ip* iptr;
history_type* ht; history_type* ht;
addr_pair ap; addr_pair ap;
int promisc = 0;
iptr = (struct ip*)(packet + sizeof(struct ether_header)); /* alignment? */ iptr = (struct ip*)(packet + sizeof(struct ether_header)); /* alignment? */
@@ -125,13 +126,19 @@ static void handle_packet(char* args, const struct pcap_pkthdr* pkthdr,const cha
ap.src = iptr->ip_dst; ap.src = iptr->ip_dst;
ap.dst = iptr->ip_src; ap.dst = iptr->ip_src;
} }
/*
* This packet is not from or to this interface. Therefore assume
* it was picked up in promisc mode.
*/
else if(iptr->ip_src.s_addr < iptr->ip_dst.s_addr) { else if(iptr->ip_src.s_addr < iptr->ip_dst.s_addr) {
ap.src = iptr->ip_src; ap.src = iptr->ip_src;
ap.dst = iptr->ip_dst; ap.dst = iptr->ip_dst;
promisc = 1;
} }
else { else {
ap.src = iptr->ip_dst; ap.src = iptr->ip_dst;
ap.dst = iptr->ip_src; ap.dst = iptr->ip_src;
promisc = 1;
} }
@@ -140,12 +147,13 @@ static void handle_packet(char* args, const struct pcap_pkthdr* pkthdr,const cha
if(hash_find(history, &ap, (void**)&ht) == HASH_STATUS_KEY_NOT_FOUND) { if(hash_find(history, &ap, (void**)&ht) == HASH_STATUS_KEY_NOT_FOUND) {
ht = history_create(); ht = history_create();
ht->promisc = promisc;
hash_insert(history, &ap, ht); hash_insert(history, &ap, ht);
} }
/* Update record */ /* Update record */
ht->last_write = history_pos; ht->last_write = history_pos;
if(iptr->ip_src.s_addr < iptr->ip_dst.s_addr) { if(iptr->ip_src.s_addr == ap.src.s_addr) {
ht->sent[history_pos] += ntohs(iptr->ip_len); ht->sent[history_pos] += ntohs(iptr->ip_len);
} }
else { else {

1
iftop.h
View File

@@ -14,6 +14,7 @@ typedef struct {
long recv[HISTORY_LENGTH]; long recv[HISTORY_LENGTH];
long sent[HISTORY_LENGTH]; long sent[HISTORY_LENGTH];
int last_write; int last_write;
int promisc;
} history_type; } history_type;
void tick(); void tick();

8
ui.c
View File

@@ -190,7 +190,15 @@ void ui_print() {
tsent = trecv = 0; tsent = trecv = 0;
trecv += d->recv[ii]; trecv += d->recv[ii];
if(d->promisc == 1) {
/* If this was picked up by promiscuous mode, it must
* have been incoming
*/
trecv += d->recv[ii];
}
else {
tsent += d->sent[ii]; tsent += d->sent[ii];
}
for(j = 0; j < HISTORY_DIVISIONS; j++) { for(j = 0; j < HISTORY_DIVISIONS; j++) {
if(i < history_divs[j]) { if(i < history_divs[j]) {