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pkt-gen: flip IPv4 address in ping-pong mode

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MFC after:	7 days
This commit is contained in:
Vincenzo Maffione 2022-08-24 08:20:57 +00:00
parent 345bfec109
commit 9a7abd9327
1 changed files with 17 additions and 0 deletions
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17
tools/tools/netmap/pkt-gen.c
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@ -1322,6 +1322,10 @@ ping_body(void *data)
return NULL;
}
if (targ->g->af == AF_INET6) {
D("Warning: ping-pong with IPv6 not supported");
}
bzero(&buckets, sizeof(buckets));
clock_gettime(CLOCK_REALTIME_PRECISE, &last_print);
now = last_print;
@ -1504,6 +1508,11 @@ pong_body(void *data)
if (n > 0)
D("understood ponger %llu but don't know how to do it",
(unsigned long long)n);
if (targ->g->af == AF_INET6) {
D("Warning: ping-pong with IPv6 not supported");
}
while (!targ->cancel && (n == 0 || sent < n)) {
uint32_t txhead, txavail;
//#define BUSYWAIT
@ -1547,7 +1556,15 @@ pong_body(void *data)
dpkt[3] = spkt[0];
dpkt[4] = spkt[1];
dpkt[5] = spkt[2];
/* swap source and destination IPv4 */
if (spkt[6] == htons(ETHERTYPE_IP)) {
dpkt[13] = spkt[15];
dpkt[14] = spkt[16];
dpkt[15] = spkt[13];
dpkt[16] = spkt[14];
}
txring->slot[txhead].len = slot->len;
//dump_payload(dst, slot->len, txring, txhead);
txhead = nm_ring_next(txring, txhead);
txavail--;
sent++;