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--- a/info.c
+++ b/info.c
@@ -156,6 +156,14 @@ static int print_phy_handler(struct nl_m
printf("\tRTS threshold: %d\n", rts);
}
+ if (tb_msg[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
+ unsigned char coverage;
+
+ coverage = nla_get_u8(tb_msg[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
+ /* See handle_distance() for an explanation where the '450' comes from */
+ printf("\tCoverage class: %d (up to %dm)\n", coverage, 450 * coverage);
+ }
+
if (!tb_msg[NL80211_ATTR_SUPPORTED_IFTYPES])
goto commands;
--- a/phy.c
+++ b/phy.c
@@ -164,3 +164,61 @@ static int handle_netns(struct nl80211_s
COMMAND(set, netns, "<pid>",
NL80211_CMD_SET_WIPHY_NETNS, 0, CIB_PHY, handle_netns,
"Put this wireless device into a different network namespace");
+
+static int handle_coverage(struct nl80211_state *state,
+ struct nl_cb *cb,
+ struct nl_msg *msg,
+ int argc, char **argv)
+{
+ unsigned int coverage;
+
+ if (argc != 1)
+ return 1;
+
+ coverage = strtoul(argv[0], NULL, 10);
+ if (coverage > 255)
+ return 1;
+
+ NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, coverage);
+
+ return 0;
+ nla_put_failure:
+ return -ENOBUFS;
+}
+COMMAND(set, coverage, "<coverage class>",
+ NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_coverage,
+ "Set coverage class (1 for every 3 usec of air propagation time).\n"
+ "Valid values: 0 - 255.");
+
+static int handle_distance(struct nl80211_state *state,
+ struct nl_cb *cb,
+ struct nl_msg *msg,
+ int argc, char **argv)
+{
+ unsigned int distance, coverage;
+
+ if (argc != 1)
+ return 1;
+
+ distance = strtoul(argv[0], NULL, 10);
+
+ /*
+ * Divide double the distance by the speed of light in m/usec (300) to
+ * get round-trip time in microseconds and then divide the result by
+ * three to get coverage class as specified in IEEE 802.11-2007 table
+ * 7-27. Values are rounded upwards.
+ */
+ coverage = (distance + 449) / 450;
+ if (coverage > 255)
+ return 1;
+
+ NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, coverage);
+
+ return 0;
+ nla_put_failure:
+ return -ENOBUFS;
+}
+COMMAND(set, distance, "<distance>",
+ NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_distance,
+ "Set appropriate coverage class for given link distance in meters.\n"
+ "Valid values: 0 - 114750");
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