Add -z "TOS" option to ping6, to test DSCP/ECN values
ping has the option to add the (deprecated) TOS byte using the -z option. Adding the same option, with the same (deprecated) Traffic Class Byte (nowadays actually DSCP and ECN fields) to ping6 to validate proper QoS processing in network switches. Reviewed by: tuexen MFC after: 2 weeks Sponsored by: NetApp, Inc. Differential Revision: https://reviews.freebsd.org/D26384
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=365547
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@ -29,7 +29,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd October 20, 2019
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.Dd September 10, 2020
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.Dt PING6 8
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.Os
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.Sh NAME
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@ -87,6 +87,9 @@ packets to network hosts
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.Op Fl W Ar waittime
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.Ek
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.Bk -words
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.Op Fl z Ar tclass
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.Ek
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.Bk -words
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.Op Ar hops ...
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.Ek
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.Bk -words
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@ -329,6 +332,8 @@ This option is present for backward compatibility.
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has no effect if
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.Fl y
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is specified.
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.It Fl z Ar tclass
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Use the specified traffic class when sending.
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.It Ar hops
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IPv6 addresses for intermediate nodes,
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which will be put into type 0 routing header.
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@ -229,6 +229,7 @@ static char *hostname;
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static int ident; /* process id to identify our packets */
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static u_int8_t nonce[8]; /* nonce field for node information */
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static int hoplimit = -1; /* hoplimit */
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static int tclass = -1; /* traffic class */
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static u_char *packet = NULL;
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static cap_channel_t *capdns;
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@ -352,7 +353,7 @@ main(int argc, char *argv[])
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#endif /*IPSEC_POLICY_IPSEC*/
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#endif
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while ((ch = getopt(argc, argv,
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"k:b:c:DdfHe:m:I:i:l:unNop:qaAS:s:OvyYW:t:" ADDOPTS)) != -1) {
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"k:b:c:DdfHe:m:I:i:l:unNop:qaAS:s:OvyYW:t:z:" ADDOPTS)) != -1) {
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#undef ADDOPTS
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switch (ch) {
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case 'k':
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@ -585,6 +586,14 @@ main(int argc, char *argv[])
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err(1, "setitimer");
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}
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break;
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case 'z': /* traffic class */
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tclass = strtol(optarg, &e, 10);
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if (*optarg == '\0' || *e != '\0')
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errx(1, "illegal traffic class %s", optarg);
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if (255 < tclass || tclass < -1)
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errx(1,
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"illegal traffic class -- %s", optarg);
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break;
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#ifdef IPSEC
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#ifdef IPSEC_POLICY_IPSEC
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case 'P':
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@ -937,6 +946,12 @@ main(int argc, char *argv[])
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scmsgp = CMSG_NXTHDR(&smsghdr, scmsgp);
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}
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if (tclass != -1) {
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if (setsockopt(ssend, IPPROTO_IPV6, IPV6_TCLASS,
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&tclass, sizeof(tclass)) == -1)
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err(1, "setsockopt(IPV6_TCLASS)");
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}
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if (argc > 1) { /* some intermediate addrs are specified */
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int hops;
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int rthdrlen;
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