src/oping.c: Add the "be" and "cs[0-7]" DSCPs.

diff --git a/src/oping.c b/src/oping.c
index 723ce3e..5c1d8a1 100644 (file)
--- a/src/oping.c
+++ b/src/oping.c
@@ -281,10 +281,13 @@ static void usage_tos_exit (const char *arg, int status) /* {{{ */
                        "\n"
                        "  Differentiated Services (IPv4 and IPv6, RFC 2474)\n"
                        "\n"
+                       "    be                     Best Effort (BE, default PHB).\n"
                        "    ef                     Expedited Forwarding (EF) PHB group (RFC 3246).\n"
                        "                           (low delay, low loss, low jitter)\n"
                        "    af[1-4][1-3]           Assured Forwarding (AF) PHB group (RFC 2597).\n"
                        "                           For example: \"af12\" (class 1, precedence 2)\n"
+                       "    cs[0-7]                Class Selector (CS) PHB group (RFC 2474).\n"
+                       "                           For example: \"cs1\" (priority traffic)\n"
                        "\n"
                        "  Type of Service (IPv4, RFC 1349, obsolete)\n"
                        "\n"
@@ -313,21 +316,16 @@ static int set_opt_send_qos (const char *opt) /* {{{ */
 
        if (strcasecmp ("help", opt) == 0)
                usage_tos_exit (/* arg = */ NULL, /* status = */ EXIT_SUCCESS);
-       /* Type of Service (RFC 1349) */
-       else if (strcasecmp ("lowdelay", opt) == 0)
-               opt_send_qos = IPTOS_LOWDELAY;
-       else if (strcasecmp ("throughput", opt) == 0)
-               opt_send_qos = IPTOS_THROUGHPUT;
-       else if (strcasecmp ("reliability", opt) == 0)
-               opt_send_qos = IPTOS_RELIABILITY;
-       else if (strcasecmp ("mincost", opt) == 0)
-               opt_send_qos = IPTOS_MINCOST;
        /* DiffServ (RFC 2474): */
-       /* * Expedited Forwarding (EF, RFC 3246) */
+       /* - Best effort (BE) */
+       else if (strcasecmp ("be", opt) == 0)
+               opt_send_qos = 0;
+       /* - Expedited Forwarding (EF, RFC 3246) */
        else if (strcasecmp ("ef", opt) == 0)
                opt_send_qos = 0xB8; /* == 0x2E << 2 */
-       /*  Assured Forwarding (AF, RFC 2597) */
-       else if (strncasecmp ("af", opt, strlen ("af")) == 0)
+       /* - Assured Forwarding (AF, RFC 2597) */
+       else if ((strncasecmp ("af", opt, strlen ("af")) == 0)
+                       && (strlen (opt) == 4))
        {
                uint8_t dscp;
                uint8_t class;
@@ -359,6 +357,30 @@ static int set_opt_send_qos (const char *opt) /* {{{ */
                /* The lower two bits are used for Explicit Congestion Notification (ECN) */
                opt_send_qos = dscp << 2;
        }
+       /* - Class Selector (CS) */
+       else if ((strncasecmp ("cs", opt, strlen ("cs")) == 0)
+                       && (strlen (opt) == 3))
+       {
+               uint8_t class;
+
+               if ((opt[2] < '0') || (opt[2] > '7'))
+                       usage_tos_exit (/* arg = */ opt, /* status = */ EXIT_FAILURE);
+
+               /* Not exactly legal by the C standard, but I don't know of any
+                * system not supporting this hack. */
+               class = ((uint8_t) opt[2]) - ((uint8_t) '0');
+               opt_send_qos = class << 5;
+       }
+       /* Type of Service (RFC 1349) */
+       else if (strcasecmp ("lowdelay", opt) == 0)
+               opt_send_qos = IPTOS_LOWDELAY;
+       else if (strcasecmp ("throughput", opt) == 0)
+               opt_send_qos = IPTOS_THROUGHPUT;
+       else if (strcasecmp ("reliability", opt) == 0)
+               opt_send_qos = IPTOS_RELIABILITY;
+       else if (strcasecmp ("mincost", opt) == 0)
+               opt_send_qos = IPTOS_MINCOST;
+       /* Numeric value */
        else
        {
                unsigned long value;