git: 6e87898a2c7e - main - tests/libalias: Improve testing
Lutz Donnerhacke
donner at FreeBSD.org
Wed May 26 14:29:45 UTC 2021
The branch main has been updated by donner:
URL: https://cgit.FreeBSD.org/src/commit/?id=6e87898a2c7e99937656a0c12d03333a43a10c5e
commit 6e87898a2c7e99937656a0c12d03333a43a10c5e
Author: Lutz Donnerhacke <donner at FreeBSD.org>
AuthorDate: 2021-05-23 17:48:13 +0000
Commit: Lutz Donnerhacke <donner at FreeBSD.org>
CommitDate: 2021-05-26 14:26:44 +0000
tests/libalias: Improve testing
gettimeofday(3) is almost as expensive as the calls to libalias.
So the call frequency for this call is reduced by a factor of 1000 in
order to neglect it's influence.
Using NAT entries became more realistic: A communication of a random
length of up to 150 packets (10% outgoing, 90% incoming) is applied
for each entry.
Precision of the execution time is raised to see the trends better.
Reviewed by: kp
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D30405
---
tests/sys/netinet/libalias/perf.c | 136 ++++++++++++++++++++++++--------------
1 file changed, 88 insertions(+), 48 deletions(-)
diff --git a/tests/sys/netinet/libalias/perf.c b/tests/sys/netinet/libalias/perf.c
index a98912278b94..4bf29ed11dce 100644
--- a/tests/sys/netinet/libalias/perf.c
+++ b/tests/sys/netinet/libalias/perf.c
@@ -47,6 +47,15 @@
(((n).tv_sec - (o).tv_sec)*1000000l + \
((n).tv_usec - (o).tv_usec))
+#define check_timeout() do { \
+ if (check_timeout_cnt++ > 1000) { \
+ check_timeout_cnt = 0; \
+ gettimeofday(&now, NULL); \
+ if (timevalcmp(now, timeout, >=)) \
+ goto out; \
+ } } while(0)
+
+
int main(int argc, char ** argv)
{
struct libalias *la;
@@ -59,8 +68,9 @@ int main(int argc, char ** argv)
} *batch;
struct {
unsigned long ok, fail;
- } nat, unnat, random, attack;
- int max_seconds, batch_size, random_size, attack_length, round, cnt;
+ } nat, usenat, unnat, random, attack;
+ int max_seconds, batch_size, random_size, attack_length, round;
+ int check_timeout_cnt = 0;
if(argc != 5 ||
0 > (max_seconds = atoi(argv[1])) ||
@@ -76,6 +86,7 @@ int main(int argc, char ** argv)
}
bzero(&nat, sizeof(nat));
+ bzero(&usenat, sizeof(usenat));
bzero(&unnat, sizeof(unnat));
bzero(&random, sizeof(random));
bzero(&attack, sizeof(attack));
@@ -97,15 +108,15 @@ int main(int argc, char ** argv)
gettimeofday(&timeout, NULL);
timeout.tv_sec += max_seconds;
- printf("RND SECND NAT RND ATT UNA\n");
+ printf("RND SECOND newNAT RANDOM ATTACK useNAT\n");
for (round = 0; ; round++) {
- int i, res;
+ int i, res, cnt;
struct timeval now, start;
printf("%3d ", round+1);
gettimeofday(&start, NULL);
- printf("%5.1f ", max_seconds - timevaldiff(timeout, start)/1000000.0f);
+ printf("%6.1f ", max_seconds - timevaldiff(timeout, start)/1000000.0f);
for (cnt = i = 0; i < batch_size; i++, cnt++) {
batch[i].src.s_addr = prv1.s_addr | htonl(rand_range(0, 0xffff));
batch[i].dst.s_addr = ext.s_addr | htonl(rand_range(0, 0xffff));
@@ -127,12 +138,11 @@ int main(int argc, char ** argv)
else
nat.fail++;
- gettimeofday(&now, NULL);
- if(timevalcmp(now, timeout, >=))
- goto out;
+ check_timeout();
}
+ gettimeofday(&now, NULL);
if (cnt > 0)
- printf("%3.0f ", timevaldiff(now, start) / cnt);
+ printf("%6.2f ", timevaldiff(now, start) / cnt);
start = now;
for (cnt = i = 0; i < random_size; i++, cnt++) {
@@ -148,12 +158,11 @@ int main(int argc, char ** argv)
else
random.fail++;
- gettimeofday(&now, NULL);
- if(timevalcmp(now, timeout, >=))
- goto out;
+ check_timeout();
}
+ gettimeofday(&now, NULL);
if (cnt > 0)
- printf("%3.0f ", timevaldiff(now, start) / cnt);
+ printf("%6.2f ", timevaldiff(now, start) / cnt);
start = now;
p->ip_src.s_addr = ext.s_addr & htonl(0xfff00000);
@@ -168,39 +177,65 @@ int main(int argc, char ** argv)
else
attack.fail++;
- gettimeofday(&now, NULL);
- if(timevalcmp(now, timeout, >=))
- goto out;
+ check_timeout();
}
+ gettimeofday(&now, NULL);
if (cnt > 0)
- printf("%3.0f ", timevaldiff(now, start) / cnt);
+ printf("%6.2f ", timevaldiff(now, start) / cnt);
qsort(batch, batch_size, sizeof(*batch), randcmp);
gettimeofday(&start, NULL);
- for (cnt = i = 0; i < batch_size; i++, cnt++) {
- p->ip_src = batch[i].dst;
- p->ip_dst = masq;
- u = set_udp(p, batch[i].dport, batch[i].aport);
+ for (cnt = i = 0; i < batch_size; i++) {
+ int j;
- res = LibAliasIn(la, p, 64);
- batch[i].aport = htons(u->uh_sport);
+ /* random communication length */
+ for(j = rand_range(1, 150); j-- > 0; cnt++) {
+ int k;
- if (res == PKT_ALIAS_OK &&
- u->uh_sport == htons(batch[i].dport) &&
- u->uh_dport == htons(batch[i].sport) &&
- addr_eq(p->ip_dst, batch[i].src) &&
- addr_eq(p->ip_src, batch[i].dst))
- unnat.ok++;
- else
- unnat.fail++;
+ /* a random flow out of rolling window */
+ k = rand_range(i, i + 25);
+ if (k >= batch_size)
+ k = i;
+
+ /* 10% outgoing, 90% incoming */
+ if (rand_range(0, 100) > 10) {
+ p->ip_src = batch[k].dst;
+ p->ip_dst = masq;
+ u = set_udp(p, batch[k].dport, batch[k].aport);
- gettimeofday(&now, NULL);
- if(timevalcmp(now, timeout, >=))
- goto out;
+ res = LibAliasIn(la, p, 64);
+ if (res == PKT_ALIAS_OK &&
+ u->uh_sport == htons(batch[k].dport) &&
+ u->uh_dport == htons(batch[k].sport) &&
+ addr_eq(p->ip_dst, batch[k].src) &&
+ addr_eq(p->ip_src, batch[k].dst))
+ unnat.ok++;
+ else
+ unnat.fail++;
+ } else {
+ p->ip_src = batch[k].src;
+ p->ip_dst = batch[k].dst;
+ u = set_udp(p, batch[k].sport, batch[k].dport);
+
+ res = LibAliasOut(la, p, 64);
+ if (res == PKT_ALIAS_OK &&
+ u->uh_sport == htons(batch[k].aport) &&
+ u->uh_dport == htons(batch[k].dport) &&
+ addr_eq(p->ip_dst, batch[k].dst) &&
+ addr_eq(p->ip_src, masq))
+ usenat.ok++;
+ else
+ usenat.fail++;
+ }
+ check_timeout();
+ }
}
+ gettimeofday(&now, NULL);
if (cnt > 0)
- printf("%3.0f\n", timevaldiff(now, start) / cnt);
+ printf("%6.2f ", timevaldiff(now, start) / cnt);
+
+ printf("\n");
}
out:
printf("\n\n");
@@ -209,18 +244,23 @@ out:
LibAliasUninit(la);
printf("Results\n");
- printf(" Rounds : %7u\n", round);
- printf(" NAT ok : %7lu\n", nat.ok);
- printf(" NAT fail: %7lu\n", nat.fail);
- printf(" UNNAT ok : %7lu\n", unnat.ok);
- printf(" UNNAT fail: %7lu\n", unnat.fail);
- printf("RANDOM ok : %7lu\n", random.ok);
- printf("RANDOM fail: %7lu\n", random.fail);
- printf("ATTACK ok : %7lu\n", attack.ok);
- printf("ATTACK fail: %7lu\n", attack.fail);
- printf(" -------------------\n");
- printf(" Total: %7lu\n",
- nat.ok + nat.fail + unnat.ok + unnat.fail +
- random.ok + random.fail + attack.ok + attack.fail);
+ printf(" Rounds : %9u\n", round);
+ printf("newNAT ok : %9lu\n", nat.ok);
+ printf("newNAT fail: %9lu\n", nat.fail);
+ printf("useNAT ok : %9lu (out)\n", usenat.ok);
+ printf("useNAT fail: %9lu (out)\n", usenat.fail);
+ printf("useNAT ok : %9lu (in)\n", unnat.ok);
+ printf("useNAT fail: %9lu (in)\n", unnat.fail);
+ printf("RANDOM ok : %9lu\n", random.ok);
+ printf("RANDOM fail: %9lu\n", random.fail);
+ printf("ATTACK ok : %9lu\n", attack.ok);
+ printf("ATTACK fail: %9lu\n", attack.fail);
+ printf(" ---------\n");
+ printf(" Total: %9lu\n",
+ nat.ok + nat.fail +
+ unnat.ok + unnat.fail +
+ usenat.ok + usenat.fail +
+ random.ok + random.fail +
+ attack.ok + attack.fail);
return (0);
}
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