[src/trunk]: src/tests/net/net tests: tweak t_ip_reass.c for NetBSD

[ozaki-r <ozaki-r%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/6dff6df2db6e
branches:  trunk
changeset: 372454:6dff6df2db6e
user:      ozaki-r <ozaki-r%NetBSD.org@localhost>
date:      Wed Nov 30 06:06:36 2022 +0000

description:
tests: tweak t_ip_reass.c for NetBSD

The test is modified to run on rump kernels.

diffstat:

 tests/net/net/t_ip_reass.c |  54 +++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 53 insertions(+), 1 deletions(-)

diffs (128 lines):

diff -r 61e32ab142a1 -r 6dff6df2db6e tests/net/net/t_ip_reass.c
--- a/tests/net/net/t_ip_reass.c        Wed Nov 30 06:05:58 2022 +0000
+++ b/tests/net/net/t_ip_reass.c        Wed Nov 30 06:06:36 2022 +0000
@@ -1,3 +1,5 @@
+/*     $NetBSD: t_ip_reass.c,v 1.2 2022/11/30 06:06:36 ozaki-r Exp $   */
+
 /*-
  * Copyright (c) 2018 The FreeBSD Foundation
  *
@@ -28,7 +30,13 @@
  */
 
 #include <sys/cdefs.h>
+
+#ifdef __NetBSD__
+__RCSID("$NetBSD: t_ip_reass.c,v 1.2 2022/11/30 06:06:36 ozaki-r Exp $");
+#define USE_RUMPKERNEL 1
+#else
 __FBSDID("$FreeBSD$");
+#endif
 
 #include <sys/param.h>
 #include <sys/ioctl.h>
@@ -50,8 +58,25 @@
 #include <time.h>
 #include <unistd.h>
 
+#ifdef USE_RUMPKERNEL
+#include <netinet/if_ether.h>
+#include <rump/rump.h>
+#include <rump/rump_syscalls.h>
+#include "h_macros.h"
+
+#define ioctl  rump_sys_ioctl
+#define close  rump_sys_close
+#define write  rump_sys_write
+#endif
+
 #include <atf-c.h>
 
+#ifdef __NetBSD__
+struct ipstat {
+       uint64_t ips_ipstat[IP_NSTATS];
+};
+#endif
+
 struct lopacket {
        u_int           family;
        struct ip       hdr;
@@ -141,10 +166,15 @@
        struct ifaddrs *ifa, *ifap;
        int error, fd;
 
+#ifdef USE_RUMPKERNEL
+       rump_init();
+       RL(fd = rump_sys_open("/dev/bpf", O_RDWR));
+#else
        fd = open("/dev/bpf0", O_RDWR);
        if (fd < 0 && errno == ENOENT)
                atf_tc_skip("no BPF device available");
        ATF_REQUIRE_MSG(fd >= 0, "open(/dev/bpf0): %s", strerror(errno));
+#endif
 
        error = getifaddrs(&ifap);
        ATF_REQUIRE(error == 0);
@@ -181,10 +211,21 @@
        ATF_REQUIRE(len == sizeof(*stat));
 }
 
+#ifdef __NetBSD__
+#define        CHECK_IP_COUNTER(oldp, newp, counter)                           \
+       ATF_REQUIRE_MSG((oldp)->ips_ipstat[counter] < (newp)->ips_ipstat[counter], \
+           "ips_" #counter " wasn't incremented (%ju vs. %ju)",        \
+           (uintmax_t)old.ips_ipstat[counter], (uintmax_t)new.ips_ipstat[counter]);
+#define fragdropped    IP_STAT_FRAGDROPPED
+#define toosmall       IP_STAT_TOOSMALL
+#define toolong                IP_STAT_TOOLONG
+#define badfrags       IP_STAT_BADFRAGS
+#else
 #define        CHECK_IP_COUNTER(oldp, newp, counter)                           \
        ATF_REQUIRE_MSG((oldp)->ips_ ## counter < (newp)->ips_ ## counter, \
-           "ips_" #counter " wasn't incremented (%ju vs. %ju)",        \
+           #counter " wasn't incremented (%ju vs. %ju)",       \
            (uintmax_t)old.ips_ ## counter, (uintmax_t)new.ips_## counter);
+#endif
 
 /*
  * Make sure a fragment with MF set doesn't come after the last fragment of a
@@ -306,14 +347,21 @@
        get_ipstat(&old);
        write_lopacket(fd, packet1);
        get_ipstat(&new);
+#ifdef __NetBSD__
+       CHECK_IP_COUNTER(&old, &new, badfrags);
+#else
        CHECK_IP_COUNTER(&old, &new, toosmall);
        CHECK_IP_COUNTER(&old, &new, fragdropped);
+#endif
 
        get_ipstat(&old);
        write_lopacket(fd, packet2);
        get_ipstat(&new);
+       /* NetBSD doesn't reject a packet of zero length w/o MF */
+#ifndef __NetBSD__
        CHECK_IP_COUNTER(&old, &new, toosmall);
        CHECK_IP_COUNTER(&old, &new, fragdropped);
+#endif
 
        error = close(fd);
        ATF_REQUIRE(error == 0);
@@ -359,13 +407,17 @@
        write_lopacket(fd, packet1);
        get_ipstat(&new);
        CHECK_IP_COUNTER(&old, &new, toolong);
+#ifndef __NetBSD__
        CHECK_IP_COUNTER(&old, &new, fragdropped);
+#endif
 
        get_ipstat(&old);
        write_lopacket(fd, packet2);
        get_ipstat(&new);
        CHECK_IP_COUNTER(&old, &new, toolong);
+#ifndef __NetBSD__
        CHECK_IP_COUNTER(&old, &new, fragdropped);
+#endif
 
        error = close(fd);
        ATF_REQUIRE(error == 0);