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