--- /dev/null
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+IP4=172.16.0.1/24
+TGT4=172.16.0.2
+IP6=2001:db8:1::1/64
+TGT6=2001:db8:1::2
+TMPF=$(mktemp --suffix ".pcap")
+
+cleanup()
+{
+ rm -f $TMPF
+ cleanup_ns $NS
+}
+
+trap cleanup EXIT
+
+tcpdump -h | grep immediate-mode >> /dev/null
+if [ $? -ne 0 ]; then
+ echo "SKIP - tcpdump with --immediate-mode option required"
+ exit $ksft_skip
+fi
+
+# Namespaces
+setup_ns NS
+NSEXE="ip netns exec $NS"
+
+$NSEXE sysctl -w net.ipv4.ping_group_range='0 2147483647' > /dev/null
+
+# Connectivity
+ip -netns $NS link add type dummy
+ip -netns $NS link set dev dummy0 up
+ip -netns $NS addr add $IP4 dev dummy0
+ip -netns $NS addr add $IP6 dev dummy0
+
+# Test
+BAD=0
+TOTAL=0
+
+check_result() {
+ ((TOTAL++))
+ if [ $1 -ne $2 ]; then
+ echo " Case $3 returned $1, expected $2"
+ ((BAD++))
+ fi
+}
+
+# IPV6_DONTFRAG
+for ovr in setsock cmsg both diff; do
+ for df in 0 1; do
+ for p in u i r; do
+ [ $p == "u" ] && prot=UDP
+ [ $p == "i" ] && prot=ICMP
+ [ $p == "r" ] && prot=RAW
+
+ [ $ovr == "setsock" ] && m="-F $df"
+ [ $ovr == "cmsg" ] && m="-f $df"
+ [ $ovr == "both" ] && m="-F $df -f $df"
+ [ $ovr == "diff" ] && m="-F $((1 - df)) -f $df"
+
+ $NSEXE ./cmsg_sender -s -S 2000 -6 -p $p $m $TGT6 1234
+ check_result $? $df "DONTFRAG $prot $ovr"
+ done
+ done
+done
+
+# IP_TOS + IPV6_TCLASS
+
+test_dscp() {
+ local -r IPVER=$1
+ local -r TGT=$2
+ local -r MATCH=$3
+
+ local -r TOS=0x10
+ local -r TOS2=0x20
+ local -r ECN=0x3
+
+ ip $IPVER -netns $NS rule add tos $TOS lookup 300
+ ip $IPVER -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 $IPVER -p $p $m $((TOS2)) $TGT 1234
+ check_result $? 0 "$MATCH $prot $ovr - pass"
+
+ while [ -d /proc/$BG ]; do
+ $NSEXE ./cmsg_sender $IPVER -p $p $m $((TOS2)) $TGT 1234
+ done
+
+ tcpdump -r $TMPF -v 2>&1 | grep "$MATCH $TOS2" >> /dev/null
+ check_result $? 0 "$MATCH $prot $ovr - packet data"
+ rm $TMPF
+
+ [ $ovr == "both" ] && m="-C $((TOS )) -c"
+ [ $ovr == "diff" ] && m="-C $((TOS2)) -c"
+
+ # Match prohibit rule: expect failure
+ $NSEXE ./cmsg_sender $IPVER -p $p $m $((TOS)) -s $TGT 1234
+ check_result $? 1 "$MATCH $prot $ovr - rejection"
+
+ # Match prohibit rule: IPv4 masks ECN: expect failure
+ if [[ "$IPVER" == "-4" ]]; then
+ $NSEXE ./cmsg_sender $IPVER -p $p $m "$((TOS | ECN))" -s $TGT 1234
+ check_result $? 1 "$MATCH $prot $ovr - rejection (ECN)"
+ fi
+ done
+ done
+}
+
+test_dscp -4 $TGT4 tos
+test_dscp -6 $TGT6 class
+
+# IP_TTL + IPV6_HOPLIMIT
+test_ttl_hoplimit() {
+ local -r IPVER=$1
+ local -r TGT=$2
+ local -r MATCH=$3
+
+ local -r LIM=4
+
+ 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="-L"
+ [ $ovr == "cmsg" ] && m="-l"
+ [ $ovr == "both" ] && m="-L $LIM -l"
+ [ $ovr == "diff" ] && m="-L $((LIM + 1)) -l"
+
+ $NSEXE nohup tcpdump --immediate-mode -p -ni dummy0 -w $TMPF -c 4 2> /dev/null &
+ BG=$!
+ sleep 0.05
+
+ $NSEXE ./cmsg_sender $IPVER -p $p $m $LIM $TGT 1234
+ check_result $? 0 "$MATCH $prot $ovr - pass"
+
+ while [ -d /proc/$BG ]; do
+ $NSEXE ./cmsg_sender $IPVER -p $p $m $LIM $TGT 1234
+ done
+
+ tcpdump -r $TMPF -v 2>&1 | grep "$MATCH $LIM[^0-9]" >> /dev/null
+ check_result $? 0 "$MATCH $prot $ovr - packet data"
+ rm $TMPF
+ done
+ done
+}
+
+test_ttl_hoplimit -4 $TGT4 ttl
+test_ttl_hoplimit -6 $TGT6 hlim
+
+# IPV6 exthdr
+for p in u i r; do
+ # Very basic "does it crash" test
+ for h in h d r; do
+ $NSEXE ./cmsg_sender -p $p -6 -H $h $TGT6 1234
+ check_result $? 0 "ExtHdr $prot $ovr - pass"
+ done
+done
+
+# Summary
+if [ $BAD -ne 0 ]; then
+ echo "FAIL - $BAD/$TOTAL cases failed"
+ exit 1
+else
+ echo "OK"
+ exit 0
+fi
+++ /dev/null
-#!/bin/bash
-# SPDX-License-Identifier: GPL-2.0
-
-source lib.sh
-
-IP6=2001:db8:1::1/64
-TGT6=2001:db8:1::2
-TMPF=$(mktemp --suffix ".pcap")
-
-cleanup()
-{
- rm -f $TMPF
- cleanup_ns $NS
-}
-
-trap cleanup EXIT
-
-tcpdump -h | grep immediate-mode >> /dev/null
-if [ $? -ne 0 ]; then
- echo "SKIP - tcpdump with --immediate-mode option required"
- exit $ksft_skip
-fi
-
-# Namespaces
-setup_ns NS
-NSEXE="ip netns exec $NS"
-
-$NSEXE sysctl -w net.ipv4.ping_group_range='0 2147483647' > /dev/null
-
-# Connectivity
-ip -netns $NS link add type dummy
-ip -netns $NS link set dev dummy0 up
-ip -netns $NS addr add $IP6 dev dummy0
-
-# Test
-BAD=0
-TOTAL=0
-
-check_result() {
- ((TOTAL++))
- if [ $1 -ne $2 ]; then
- echo " Case $3 returned $1, expected $2"
- ((BAD++))
- fi
-}
-
-# IPV6_DONTFRAG
-for ovr in setsock cmsg both diff; do
- for df in 0 1; do
- for p in u i r; do
- [ $p == "u" ] && prot=UDP
- [ $p == "i" ] && prot=ICMP
- [ $p == "r" ] && prot=RAW
-
- [ $ovr == "setsock" ] && m="-F $df"
- [ $ovr == "cmsg" ] && m="-f $df"
- [ $ovr == "both" ] && m="-F $df -f $df"
- [ $ovr == "diff" ] && m="-F $((1 - df)) -f $df"
-
- $NSEXE ./cmsg_sender -s -S 2000 -6 -p $p $m $TGT6 1234
- check_result $? $df "DONTFRAG $prot $ovr"
- done
- done
-done
-
-# IPV6_TCLASS
-
-test_dscp() {
- local -r TOS=0x10
- local -r 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 $p $m $((TOS2)) $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
-}
-
-test_dscp
-
-# IPV6_HOPLIMIT
-test_hoplimit() {
- local -r LIM=4
-
- 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="-L"
- [ $ovr == "cmsg" ] && m="-l"
- [ $ovr == "both" ] && m="-L $LIM -l"
- [ $ovr == "diff" ] && m="-L $((LIM + 1)) -l"
-
- $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 $LIM $TGT6 1234
- check_result $? 0 "HOPLIMIT $prot $ovr - pass"
-
- while [ -d /proc/$BG ]; do
- $NSEXE ./cmsg_sender -6 -p $p $m $LIM $TGT6 1234
- done
-
- tcpdump -r $TMPF -v 2>&1 | grep "hlim $LIM[^0-9]" >> /dev/null
- check_result $? 0 "HOPLIMIT $prot $ovr - packet data"
- rm $TMPF
- done
- done
-}
-
-test_hoplimit
-
-# IPV6 exthdr
-for p in u i r; do
- # Very basic "does it crash" test
- for h in h d r; do
- $NSEXE ./cmsg_sender -p $p -6 -H $h $TGT6 1234
- check_result $? 0 "ExtHdr $prot $ovr - pass"
- done
-done
-
-# Summary
-if [ $BAD -ne 0 ]; then
- echo "FAIL - $BAD/$TOTAL cases failed"
- exit 1
-else
- echo "OK"
- exit 0
-fi
struct option_cmsg_u32 tclass;
struct option_cmsg_u32 hlimit;
struct option_cmsg_u32 exthdr;
- } v6;
+ } cmsg;
} opt = {
.size = 13,
.num_pkt = 1,
"\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"
- "\t\t-l val Set HOPLIMIT via cmsg\n"
- "\t\t-L val Set HOPLIMIT via setsockopt\n"
+ "\t\t-c val Set TOS/TCLASS via cmsg\n"
+ "\t\t-C val Set TOS/TCLASS via setsockopt\n"
+ "\t\t-l val Set TTL/HOPLIMIT via cmsg\n"
+ "\t\t-L val Set TTL/HOPLIMIT via setsockopt\n"
"\t\t-H type Add an IPv6 header option\n"
"\t\t (h = HOP; d = DST; r = RTDST)"
"");
opt.ts.ena = true;
break;
case 'f':
- opt.v6.dontfrag.ena = true;
- opt.v6.dontfrag.val = atoi(optarg);
+ opt.cmsg.dontfrag.ena = true;
+ opt.cmsg.dontfrag.val = atoi(optarg);
break;
case 'F':
opt.sockopt.dontfrag = atoi(optarg);
break;
case 'c':
- opt.v6.tclass.ena = true;
- opt.v6.tclass.val = atoi(optarg);
+ opt.cmsg.tclass.ena = true;
+ opt.cmsg.tclass.val = atoi(optarg);
break;
case 'C':
opt.sockopt.tclass = atoi(optarg);
break;
case 'l':
- opt.v6.hlimit.ena = true;
- opt.v6.hlimit.val = atoi(optarg);
+ opt.cmsg.hlimit.ena = true;
+ opt.cmsg.hlimit.val = atoi(optarg);
break;
case 'L':
opt.sockopt.hlimit = atoi(optarg);
break;
case 'H':
- opt.v6.exthdr.ena = true;
+ opt.cmsg.exthdr.ena = true;
switch (optarg[0]) {
case 'h':
- opt.v6.exthdr.val = IPV6_HOPOPTS;
+ opt.cmsg.exthdr.val = IPV6_HOPOPTS;
break;
case 'd':
- opt.v6.exthdr.val = IPV6_DSTOPTS;
+ opt.cmsg.exthdr.val = IPV6_DSTOPTS;
break;
case 'r':
- opt.v6.exthdr.val = IPV6_RTHDRDSTOPTS;
+ opt.cmsg.exthdr.val = IPV6_RTHDRDSTOPTS;
break;
default:
printf("Error: hdr type: %s\n", optarg);
SOL_SOCKET, SO_MARK, &opt.mark);
ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len,
SOL_SOCKET, SO_PRIORITY, &opt.priority);
- 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);
- ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len,
- SOL_IPV6, IPV6_HOPLIMIT, &opt.v6.hlimit);
+
+ if (opt.sock.family == AF_INET) {
+ ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len,
+ SOL_IP, IP_TOS, &opt.cmsg.tclass);
+ ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len,
+ SOL_IP, IP_TTL, &opt.cmsg.hlimit);
+ } else {
+ ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len,
+ SOL_IPV6, IPV6_DONTFRAG, &opt.cmsg.dontfrag);
+ ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len,
+ SOL_IPV6, IPV6_TCLASS, &opt.cmsg.tclass);
+ ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len,
+ SOL_IPV6, IPV6_HOPLIMIT, &opt.cmsg.hlimit);
+ }
if (opt.txtime.ena) {
__u64 txtime;
*(__u32 *)CMSG_DATA(cmsg) = SOF_TIMESTAMPING_TX_SCHED |
SOF_TIMESTAMPING_TX_SOFTWARE;
}
- if (opt.v6.exthdr.ena) {
+ if (opt.cmsg.exthdr.ena) {
cmsg = (struct cmsghdr *)(cbuf + cmsg_len);
cmsg_len += CMSG_SPACE(8);
if (cbuf_sz < cmsg_len)
error(ERN_CMSG_WR, EFAULT, "cmsg buffer too small");
cmsg->cmsg_level = SOL_IPV6;
- cmsg->cmsg_type = opt.v6.exthdr.val;
+ cmsg->cmsg_type = opt.cmsg.exthdr.val;
cmsg->cmsg_len = CMSG_LEN(8);
*(__u64 *)CMSG_DATA(cmsg) = 0;
}
setsockopt(fd, SOL_SOCKET, SO_MARK,
&opt.sockopt.mark, sizeof(opt.sockopt.mark)))
error(ERN_SOCKOPT, errno, "setsockopt SO_MARK");
- if (opt.sockopt.dontfrag &&
- 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");
- if (opt.sockopt.hlimit &&
- setsockopt(fd, SOL_IPV6, IPV6_UNICAST_HOPS,
- &opt.sockopt.hlimit, sizeof(opt.sockopt.hlimit)))
- error(ERN_SOCKOPT, errno, "setsockopt IPV6_HOPLIMIT");
if (opt.sockopt.priority &&
setsockopt(fd, SOL_SOCKET, SO_PRIORITY,
&opt.sockopt.priority, sizeof(opt.sockopt.priority)))
error(ERN_SOCKOPT, errno, "setsockopt SO_PRIORITY");
+ if (opt.sock.family == AF_INET) {
+ if (opt.sockopt.tclass &&
+ setsockopt(fd, SOL_IP, IP_TOS,
+ &opt.sockopt.tclass, sizeof(opt.sockopt.tclass)))
+ error(ERN_SOCKOPT, errno, "setsockopt IP_TOS");
+ if (opt.sockopt.hlimit &&
+ setsockopt(fd, SOL_IP, IP_TTL,
+ &opt.sockopt.hlimit, sizeof(opt.sockopt.hlimit)))
+ error(ERN_SOCKOPT, errno, "setsockopt IP_TTL");
+ } else {
+ if (opt.sockopt.dontfrag &&
+ 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");
+ if (opt.sockopt.hlimit &&
+ setsockopt(fd, SOL_IPV6, IPV6_UNICAST_HOPS,
+ &opt.sockopt.hlimit, sizeof(opt.sockopt.hlimit)))
+ error(ERN_SOCKOPT, errno, "setsockopt IPV6_HOPLIMIT");
+ }
+
if (opt.txtime.ena) {
struct sock_txtime so_txtime = {
.clockid = CLOCK_MONOTONIC,
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