wprobe: export raw values (n, s, ss) to ipfix collectors for improved measurement accuracy

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18852 3c298f89-4303-0410-b956-a3cf2f4a3e73

3 files changed, 48 insertions, 50 deletions

diff --git a/package/libipfix/extra/append-wprobe-ie.pl b/package/libipfix/extra/append-wprobe-ie.pl
index 3a8db3fe1..fa838ff76 100644
--- a/package/libipfix/extra/append-wprobe-ie.pl
+++ b/package/libipfix/extra/append-wprobe-ie.pl
@@ -1,9 +1,9 @@
 use strict;
 
 my @fields = (
-	[ "_avg", "FLOAT", " - Average" ],
-	[ "_stdev", "FLOAT", " - Standard deviation" ],
-	[ "_n", "UINT", " - Number of samples" ]
+	[ "_n", "UINT", " - Number of samples", 4 ],
+	[ "_s", "UINT", " - Sum of samples", 8 ],
+	[ "_ss", "UINT", " - Sum of squared samples", 8 ],
 );
 
 my $file = $ARGV[0] or die "Syntax: $0 <file>\n";
@@ -23,7 +23,7 @@ while (<STDIN>) {
 		my $descr = $4;
 		my @f;
 		if ($counter) {
-			@f = [ "", "UINT", "" ];
+			@f = [ "", "UINT", "", 4];
 		} else {
 			@f = @fields;
 		}
@@ -33,7 +33,8 @@ while (<STDIN>) {
 			my $N = uc $n;
 			my $ftype = $f->[1];
 			my $fdesc = $f->[2];
-			print "$nr, IPFIX_FT_WPROBE_$rfield$N, 4, IPFIX_CODING_$ftype, \"$nfield$n\", \"$descr$fdesc\"\n";
+			my $size = $f->[3];
+			print "$nr, IPFIX_FT_WPROBE_$rfield$N, $size, IPFIX_CODING_$ftype, \"$nfield$n\", \"$descr$fdesc\"\n";
 		}
 	};
 }
diff --git a/package/libipfix/patches/110-wprobe_ie.patch b/package/libipfix/patches/110-wprobe_ie.patch
index bbfa33120..5b9ba887c 100644
--- a/package/libipfix/patches/110-wprobe_ie.patch
+++ b/package/libipfix/patches/110-wprobe_ie.patch
@@ -4,41 +4,41 @@
  313, IPFIX_FT_OWDVARMIN_NSEC,       4, IPFIX_CODING_INT, "owdvarmin_nsec", "FOKUS minimum owd variance in ns"
  314, IPFIX_FT_OWDVARMAX_NSEC,       4, IPFIX_CODING_INT, "owdvarmax_nsec", "FOKUS maximum ow variance in ns"
  
-+315, IPFIX_FT_WPROBE_NOISE_AVG, 4, IPFIX_CODING_FLOAT, "global_noise_avg", "wprobe global noice floor - Average"
-+316, IPFIX_FT_WPROBE_NOISE_STDEV, 4, IPFIX_CODING_FLOAT, "global_noise_stdev", "wprobe global noice floor - Standard deviation"
-+317, IPFIX_FT_WPROBE_NOISE_N, 4, IPFIX_CODING_UINT, "global_noise_n", "wprobe global noice floor - Number of samples"
-+318, IPFIX_FT_WPROBE_PHY_BUSY_AVG, 4, IPFIX_CODING_FLOAT, "global_phy_busy_avg", "wprobe global airtime total - Average"
-+319, IPFIX_FT_WPROBE_PHY_BUSY_STDEV, 4, IPFIX_CODING_FLOAT, "global_phy_busy_stdev", "wprobe global airtime total - Standard deviation"
-+320, IPFIX_FT_WPROBE_PHY_BUSY_N, 4, IPFIX_CODING_UINT, "global_phy_busy_n", "wprobe global airtime total - Number of samples"
-+321, IPFIX_FT_WPROBE_PHY_RX_AVG, 4, IPFIX_CODING_FLOAT, "global_phy_rx_avg", "wprobe global airtime total from rx-frame - Average"
-+322, IPFIX_FT_WPROBE_PHY_RX_STDEV, 4, IPFIX_CODING_FLOAT, "global_phy_rx_stdev", "wprobe global airtime total from rx-frame - Standard deviation"
-+323, IPFIX_FT_WPROBE_PHY_RX_N, 4, IPFIX_CODING_UINT, "global_phy_rx_n", "wprobe global airtime total from rx-frame - Number of samples"
-+324, IPFIX_FT_WPROBE_PHY_TX_AVG, 4, IPFIX_CODING_FLOAT, "global_phy_tx_avg", "wprobe global airtime total from tx-frame - Average"
-+325, IPFIX_FT_WPROBE_PHY_TX_STDEV, 4, IPFIX_CODING_FLOAT, "global_phy_tx_stdev", "wprobe global airtime total from tx-frame - Standard deviation"
-+326, IPFIX_FT_WPROBE_PHY_TX_N, 4, IPFIX_CODING_UINT, "global_phy_tx_n", "wprobe global airtime total from tx-frame - Number of samples"
-+327, IPFIX_FT_WPROBE_RSSI_AVG, 4, IPFIX_CODING_FLOAT, "link_rssi_avg", "wprobe link received signal strength indication - Average"
-+328, IPFIX_FT_WPROBE_RSSI_STDEV, 4, IPFIX_CODING_FLOAT, "link_rssi_stdev", "wprobe link received signal strength indication - Standard deviation"
-+329, IPFIX_FT_WPROBE_RSSI_N, 4, IPFIX_CODING_UINT, "link_rssi_n", "wprobe link received signal strength indication - Number of samples"
-+330, IPFIX_FT_WPROBE_SIGNAL_AVG, 4, IPFIX_CODING_FLOAT, "link_signal_avg", "wprobe link signal strength in dB - Average"
-+331, IPFIX_FT_WPROBE_SIGNAL_STDEV, 4, IPFIX_CODING_FLOAT, "link_signal_stdev", "wprobe link signal strength in dB - Standard deviation"
-+332, IPFIX_FT_WPROBE_SIGNAL_N, 4, IPFIX_CODING_UINT, "link_signal_n", "wprobe link signal strength in dB - Number of samples"
-+333, IPFIX_FT_WPROBE_IEEE_RX_RATE_AVG, 4, IPFIX_CODING_FLOAT, "link_ieee_rx_rate_avg", "wprobe link IEEE 802.11 RX data rate - Average"
-+334, IPFIX_FT_WPROBE_IEEE_RX_RATE_STDEV, 4, IPFIX_CODING_FLOAT, "link_ieee_rx_rate_stdev", "wprobe link IEEE 802.11 RX data rate - Standard deviation"
-+335, IPFIX_FT_WPROBE_IEEE_RX_RATE_N, 4, IPFIX_CODING_UINT, "link_ieee_rx_rate_n", "wprobe link IEEE 802.11 RX data rate - Number of samples"
-+336, IPFIX_FT_WPROBE_IEEE_TX_RATE_AVG, 4, IPFIX_CODING_FLOAT, "link_ieee_tx_rate_avg", "wprobe link IEEE 802.11 TX data rate - Average"
-+337, IPFIX_FT_WPROBE_IEEE_TX_RATE_STDEV, 4, IPFIX_CODING_FLOAT, "link_ieee_tx_rate_stdev", "wprobe link IEEE 802.11 TX data rate - Standard deviation"
-+338, IPFIX_FT_WPROBE_IEEE_TX_RATE_N, 4, IPFIX_CODING_UINT, "link_ieee_tx_rate_n", "wprobe link IEEE 802.11 TX data rate - Number of samples"
-+339, IPFIX_FT_WPROBE_RETRANSMIT_200_AVG, 4, IPFIX_CODING_FLOAT, "link_retransmit_200_avg", "wprobe link total retransmissions per packet - <200 bytes - Average"
-+340, IPFIX_FT_WPROBE_RETRANSMIT_200_STDEV, 4, IPFIX_CODING_FLOAT, "link_retransmit_200_stdev", "wprobe link total retransmissions per packet - <200 bytes - Standard deviation"
-+341, IPFIX_FT_WPROBE_RETRANSMIT_200_N, 4, IPFIX_CODING_UINT, "link_retransmit_200_n", "wprobe link total retransmissions per packet - <200 bytes - Number of samples"
-+342, IPFIX_FT_WPROBE_RETRANSMIT_400_AVG, 4, IPFIX_CODING_FLOAT, "link_retransmit_400_avg", "wprobe link total retransmissions per packet - <400 bytes - Average"
-+343, IPFIX_FT_WPROBE_RETRANSMIT_400_STDEV, 4, IPFIX_CODING_FLOAT, "link_retransmit_400_stdev", "wprobe link total retransmissions per packet - <400 bytes - Standard deviation"
-+344, IPFIX_FT_WPROBE_RETRANSMIT_400_N, 4, IPFIX_CODING_UINT, "link_retransmit_400_n", "wprobe link total retransmissions per packet - <400 bytes - Number of samples"
-+345, IPFIX_FT_WPROBE_RETRANSMIT_800_AVG, 4, IPFIX_CODING_FLOAT, "link_retransmit_800_avg", "wprobe link total retransmissions per packet - <800 bytes - Average"
-+346, IPFIX_FT_WPROBE_RETRANSMIT_800_STDEV, 4, IPFIX_CODING_FLOAT, "link_retransmit_800_stdev", "wprobe link total retransmissions per packet - <800 bytes - Standard deviation"
-+347, IPFIX_FT_WPROBE_RETRANSMIT_800_N, 4, IPFIX_CODING_UINT, "link_retransmit_800_n", "wprobe link total retransmissions per packet - <800 bytes - Number of samples"
-+348, IPFIX_FT_WPROBE_RETRANSMIT_1600_AVG, 4, IPFIX_CODING_FLOAT, "link_retransmit_1600_avg", "wprobe link total retransmissions per packet - >800 bytes - Average"
-+349, IPFIX_FT_WPROBE_RETRANSMIT_1600_STDEV, 4, IPFIX_CODING_FLOAT, "link_retransmit_1600_stdev", "wprobe link total retransmissions per packet - >800 bytes - Standard deviation"
-+350, IPFIX_FT_WPROBE_RETRANSMIT_1600_N, 4, IPFIX_CODING_UINT, "link_retransmit_1600_n", "wprobe link total retransmissions per packet - >800 bytes - Number of samples"
++315, IPFIX_FT_WPROBE_NOISE_N, 4, IPFIX_CODING_UINT, "global_noise_n", "wprobe global noice floor - Number of samples"
++316, IPFIX_FT_WPROBE_NOISE_S, 8, IPFIX_CODING_UINT, "global_noise_s", "wprobe global noice floor - Sum of samples"
++317, IPFIX_FT_WPROBE_NOISE_SS, 8, IPFIX_CODING_UINT, "global_noise_ss", "wprobe global noice floor - Sum of squared samples"
++318, IPFIX_FT_WPROBE_PHY_BUSY_N, 4, IPFIX_CODING_UINT, "global_phy_busy_n", "wprobe global airtime total - Number of samples"
++319, IPFIX_FT_WPROBE_PHY_BUSY_S, 8, IPFIX_CODING_UINT, "global_phy_busy_s", "wprobe global airtime total - Sum of samples"
++320, IPFIX_FT_WPROBE_PHY_BUSY_SS, 8, IPFIX_CODING_UINT, "global_phy_busy_ss", "wprobe global airtime total - Sum of squared samples"
++321, IPFIX_FT_WPROBE_PHY_RX_N, 4, IPFIX_CODING_UINT, "global_phy_rx_n", "wprobe global airtime total from rx-frame - Number of samples"
++322, IPFIX_FT_WPROBE_PHY_RX_S, 8, IPFIX_CODING_UINT, "global_phy_rx_s", "wprobe global airtime total from rx-frame - Sum of samples"
++323, IPFIX_FT_WPROBE_PHY_RX_SS, 8, IPFIX_CODING_UINT, "global_phy_rx_ss", "wprobe global airtime total from rx-frame - Sum of squared samples"
++324, IPFIX_FT_WPROBE_PHY_TX_N, 4, IPFIX_CODING_UINT, "global_phy_tx_n", "wprobe global airtime total from tx-frame - Number of samples"
++325, IPFIX_FT_WPROBE_PHY_TX_S, 8, IPFIX_CODING_UINT, "global_phy_tx_s", "wprobe global airtime total from tx-frame - Sum of samples"
++326, IPFIX_FT_WPROBE_PHY_TX_SS, 8, IPFIX_CODING_UINT, "global_phy_tx_ss", "wprobe global airtime total from tx-frame - Sum of squared samples"
++327, IPFIX_FT_WPROBE_RSSI_N, 4, IPFIX_CODING_UINT, "link_rssi_n", "wprobe link received signal strength indication - Number of samples"
++328, IPFIX_FT_WPROBE_RSSI_S, 8, IPFIX_CODING_UINT, "link_rssi_s", "wprobe link received signal strength indication - Sum of samples"
++329, IPFIX_FT_WPROBE_RSSI_SS, 8, IPFIX_CODING_UINT, "link_rssi_ss", "wprobe link received signal strength indication - Sum of squared samples"
++330, IPFIX_FT_WPROBE_SIGNAL_N, 4, IPFIX_CODING_UINT, "link_signal_n", "wprobe link signal strength in dB - Number of samples"
++331, IPFIX_FT_WPROBE_SIGNAL_S, 8, IPFIX_CODING_UINT, "link_signal_s", "wprobe link signal strength in dB - Sum of samples"
++332, IPFIX_FT_WPROBE_SIGNAL_SS, 8, IPFIX_CODING_UINT, "link_signal_ss", "wprobe link signal strength in dB - Sum of squared samples"
++333, IPFIX_FT_WPROBE_IEEE_RX_RATE_N, 4, IPFIX_CODING_UINT, "link_ieee_rx_rate_n", "wprobe link IEEE 802.11 RX data rate - Number of samples"
++334, IPFIX_FT_WPROBE_IEEE_RX_RATE_S, 8, IPFIX_CODING_UINT, "link_ieee_rx_rate_s", "wprobe link IEEE 802.11 RX data rate - Sum of samples"
++335, IPFIX_FT_WPROBE_IEEE_RX_RATE_SS, 8, IPFIX_CODING_UINT, "link_ieee_rx_rate_ss", "wprobe link IEEE 802.11 RX data rate - Sum of squared samples"
++336, IPFIX_FT_WPROBE_IEEE_TX_RATE_N, 4, IPFIX_CODING_UINT, "link_ieee_tx_rate_n", "wprobe link IEEE 802.11 TX data rate - Number of samples"
++337, IPFIX_FT_WPROBE_IEEE_TX_RATE_S, 8, IPFIX_CODING_UINT, "link_ieee_tx_rate_s", "wprobe link IEEE 802.11 TX data rate - Sum of samples"
++338, IPFIX_FT_WPROBE_IEEE_TX_RATE_SS, 8, IPFIX_CODING_UINT, "link_ieee_tx_rate_ss", "wprobe link IEEE 802.11 TX data rate - Sum of squared samples"
++339, IPFIX_FT_WPROBE_RETRANSMIT_200_N, 4, IPFIX_CODING_UINT, "link_retransmit_200_n", "wprobe link total retransmissions per packet - <200 bytes - Number of samples"
++340, IPFIX_FT_WPROBE_RETRANSMIT_200_S, 8, IPFIX_CODING_UINT, "link_retransmit_200_s", "wprobe link total retransmissions per packet - <200 bytes - Sum of samples"
++341, IPFIX_FT_WPROBE_RETRANSMIT_200_SS, 8, IPFIX_CODING_UINT, "link_retransmit_200_ss", "wprobe link total retransmissions per packet - <200 bytes - Sum of squared samples"
++342, IPFIX_FT_WPROBE_RETRANSMIT_400_N, 4, IPFIX_CODING_UINT, "link_retransmit_400_n", "wprobe link total retransmissions per packet - <400 bytes - Number of samples"
++343, IPFIX_FT_WPROBE_RETRANSMIT_400_S, 8, IPFIX_CODING_UINT, "link_retransmit_400_s", "wprobe link total retransmissions per packet - <400 bytes - Sum of samples"
++344, IPFIX_FT_WPROBE_RETRANSMIT_400_SS, 8, IPFIX_CODING_UINT, "link_retransmit_400_ss", "wprobe link total retransmissions per packet - <400 bytes - Sum of squared samples"
++345, IPFIX_FT_WPROBE_RETRANSMIT_800_N, 4, IPFIX_CODING_UINT, "link_retransmit_800_n", "wprobe link total retransmissions per packet - <800 bytes - Number of samples"
++346, IPFIX_FT_WPROBE_RETRANSMIT_800_S, 8, IPFIX_CODING_UINT, "link_retransmit_800_s", "wprobe link total retransmissions per packet - <800 bytes - Sum of samples"
++347, IPFIX_FT_WPROBE_RETRANSMIT_800_SS, 8, IPFIX_CODING_UINT, "link_retransmit_800_ss", "wprobe link total retransmissions per packet - <800 bytes - Sum of squared samples"
++348, IPFIX_FT_WPROBE_RETRANSMIT_1600_N, 4, IPFIX_CODING_UINT, "link_retransmit_1600_n", "wprobe link total retransmissions per packet - >800 bytes - Number of samples"
++349, IPFIX_FT_WPROBE_RETRANSMIT_1600_S, 8, IPFIX_CODING_UINT, "link_retransmit_1600_s", "wprobe link total retransmissions per packet - >800 bytes - Sum of samples"
++350, IPFIX_FT_WPROBE_RETRANSMIT_1600_SS, 8, IPFIX_CODING_UINT, "link_retransmit_1600_ss", "wprobe link total retransmissions per packet - >800 bytes - Sum of squared samples"
 +351, IPFIX_FT_WPROBE_FRAMES, 4, IPFIX_CODING_UINT, "global_frames", "wprobe global number of 802.11 frames seen"
 +352, IPFIX_FT_WPROBE_PROBEREQ, 4, IPFIX_CODING_UINT, "global_probereq", "wprobe global number of 802.11 probe requests seen"
diff --git a/package/wprobe/src/exporter/wprobe-export.c b/package/wprobe/src/exporter/wprobe-export.c
index 48be5f36b..9255d76c4 100644
--- a/package/wprobe/src/exporter/wprobe-export.c
+++ b/package/wprobe/src/exporter/wprobe-export.c
@@ -25,7 +25,6 @@ static int do_close = 0;
 struct wprobe_mapping {
 	int id;
 	bool counter;
-	float scale;
 	const char *wprobe_id;
 	struct wprobe_value *val;
 };
@@ -36,16 +35,14 @@ struct wprobe_mapping {
 
 #define WMAP(_id, _name, ...) \
 	{ \
-		.scale = 1.0f, \
 		.counter = false, \
-		.id = IPFIX_FT_WPROBE_##_id##_AVG, \
+		.id = IPFIX_FT_WPROBE_##_id##_N, \
 		.wprobe_id = _name \
 		, ## __VA_ARGS__ \
 	}
 
 #define WMAP_COUNTER(_id, _name, ...) \
 	{ \
-		.scale = 1.0f, \
 		.counter = true, \
 		.id = IPFIX_FT_WPROBE_##_id, \
 		.wprobe_id = _name \
@@ -144,7 +141,7 @@ add_template_fields(ipfix_t *handle, ipfix_template_t *t, struct wprobe_mapping
 		if (map[i].counter)
 			g_data.addrs[f++] = &map[i].val->U32;
 		else
-			g_data.addrs[f++] = &map[i].val->avg;
+			g_data.addrs[f++] = &map[i].val->n;
 
         if (ipfix_add_field( handle, t, FOKUS_USERID, map[i].id + 0, 4) < 0)
             exit(1);
@@ -152,11 +149,11 @@ add_template_fields(ipfix_t *handle, ipfix_template_t *t, struct wprobe_mapping
 		if (map[i].counter)
 			continue;
 
-		g_data.addrs[f++] = &map[i].val->stdev;
-		g_data.addrs[f++] = &map[i].val->n;
-        if (ipfix_add_field( handle, t, FOKUS_USERID, map[i].id + 1, 4) < 0)
+		g_data.addrs[f++] = &map[i].val->s;
+		g_data.addrs[f++] = &map[i].val->ss;
+        if (ipfix_add_field( handle, t, FOKUS_USERID, map[i].id + 1, 8) < 0)
             exit(1);
-        if (ipfix_add_field( handle, t, FOKUS_USERID, map[i].id + 2, 4) < 0)
+        if (ipfix_add_field( handle, t, FOKUS_USERID, map[i].id + 2, 8) < 0)
             exit(1);
     }
 	g_data.maxfields = f;