diff options
| -rwxr-xr-x | tools/testing/selftests/net/cmsg_ipv6.sh | 51 | ||||
| -rw-r--r-- | tools/testing/selftests/net/cmsg_sender.c | 19 |
2 files changed, 69 insertions, 1 deletions
diff --git a/tools/testing/selftests/net/cmsg_ipv6.sh b/tools/testing/selftests/net/cmsg_ipv6.sh index fb5a8ab7c909..f7bb6ce68c88 100755 --- a/tools/testing/selftests/net/cmsg_ipv6.sh +++ b/tools/testing/selftests/net/cmsg_ipv6.sh @@ -1,12 +1,16 @@ #!/bin/bash # SPDX-License-Identifier: GPL-2.0 +ksft_skip=4 + NS=ns IP6=2001:db8:1::1/64 TGT6=2001:db8:1::2 +TMPF=`mktemp` cleanup() { + rm -f $TMPF ip netns del $NS } @@ -14,6 +18,12 @@ trap cleanup EXIT NSEXE="ip netns exec $NS" +tcpdump -h | grep immediate-mode >> /dev/null +if [ $? -ne 0 ]; then + echo "SKIP - tcpdump with --immediate-mode option required" + exit $ksft_skip +fi + # Namespaces ip netns add $NS @@ -55,6 +65,47 @@ for ovr in setsock cmsg both diff; do done done +# IPV6_TCLASS +TOS=0x10 +TOS2=0x20 + +ip -6 -netns $NS rule add tos $TOS lookup 300 +ip -6 -netns $NS route add table 300 prohibit any + +for ovr in setsock cmsg both diff; do + for p in u i r; do + [ $p == "u" ] && prot=UDP + [ $p == "i" ] && prot=ICMP + [ $p == "r" ] && prot=RAW + + [ $ovr == "setsock" ] && m="-C" + [ $ovr == "cmsg" ] && m="-c" + [ $ovr == "both" ] && m="-C $((TOS2)) -c" + [ $ovr == "diff" ] && m="-C $((TOS )) -c" + + $NSEXE nohup tcpdump --immediate-mode -p -ni dummy0 -w $TMPF -c 4 2> /dev/null & + BG=$! + sleep 0.05 + + $NSEXE ./cmsg_sender -6 -p $p $m $((TOS2)) $TGT6 1234 + check_result $? 0 "TCLASS $prot $ovr - pass" + + while [ -d /proc/$BG ]; do + $NSEXE ./cmsg_sender -6 -p u $TGT6 1234 + done + + tcpdump -r $TMPF -v 2>&1 | grep "class $TOS2" >> /dev/null + check_result $? 0 "TCLASS $prot $ovr - packet data" + rm $TMPF + + [ $ovr == "both" ] && m="-C $((TOS )) -c" + [ $ovr == "diff" ] && m="-C $((TOS2)) -c" + + $NSEXE ./cmsg_sender -6 -p $p $m $((TOS)) -s $TGT6 1234 + check_result $? 1 "TCLASS $prot $ovr - rejection" + done +done + # Summary if [ $BAD -ne 0 ]; then echo "FAIL - $BAD/$TOTAL cases failed" diff --git a/tools/testing/selftests/net/cmsg_sender.c b/tools/testing/selftests/net/cmsg_sender.c index 844ca6134662..4033cf93eabf 100644 --- a/tools/testing/selftests/net/cmsg_sender.c +++ b/tools/testing/selftests/net/cmsg_sender.c @@ -46,6 +46,7 @@ struct options { struct { unsigned int mark; unsigned int dontfrag; + unsigned int tclass; } sockopt; struct { unsigned int family; @@ -62,6 +63,7 @@ struct options { } ts; struct { struct option_cmsg_u32 dontfrag; + struct option_cmsg_u32 tclass; } v6; } opt = { .size = 13, @@ -91,6 +93,8 @@ static void __attribute__((noreturn)) cs_usage(const char *bin) "\t\t-t Enable time stamp reporting\n" "\t\t-f val Set don't fragment via cmsg\n" "\t\t-F val Set don't fragment via setsockopt\n" + "\t\t-c val Set TCLASS via cmsg\n" + "\t\t-C val Set TCLASS via setsockopt\n" ""); exit(ERN_HELP); } @@ -99,7 +103,7 @@ static void cs_parse_args(int argc, char *argv[]) { char o; - while ((o = getopt(argc, argv, "46sS:p:m:M:d:tf:F:")) != -1) { + while ((o = getopt(argc, argv, "46sS:p:m:M:d:tf:F:c:C:")) != -1) { switch (o) { case 's': opt.silent_send = true; @@ -147,6 +151,13 @@ static void cs_parse_args(int argc, char *argv[]) case 'F': opt.sockopt.dontfrag = atoi(optarg); break; + case 'c': + opt.v6.tclass.ena = true; + opt.v6.tclass.val = atoi(optarg); + break; + case 'C': + opt.sockopt.tclass = atoi(optarg); + break; } } @@ -202,6 +213,8 @@ cs_write_cmsg(int fd, struct msghdr *msg, char *cbuf, size_t cbuf_sz) SOL_SOCKET, SO_MARK, &opt.mark); ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len, SOL_IPV6, IPV6_DONTFRAG, &opt.v6.dontfrag); + ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len, + SOL_IPV6, IPV6_TCLASS, &opt.v6.tclass); if (opt.txtime.ena) { struct sock_txtime so_txtime = { @@ -343,6 +356,10 @@ static void ca_set_sockopts(int fd) setsockopt(fd, SOL_IPV6, IPV6_DONTFRAG, &opt.sockopt.dontfrag, sizeof(opt.sockopt.dontfrag))) error(ERN_SOCKOPT, errno, "setsockopt IPV6_DONTFRAG"); + if (opt.sockopt.tclass && + setsockopt(fd, SOL_IPV6, IPV6_TCLASS, + &opt.sockopt.tclass, sizeof(opt.sockopt.tclass))) + error(ERN_SOCKOPT, errno, "setsockopt IPV6_TCLASS"); } int main(int argc, char *argv[]) |