From 66736c857476550c68720a4cf933ab2f6d04031d Mon Sep 17 00:00:00 2001
From: Jo-Philipp Wich <jow@openwrt.org>
Date: Tue, 19 Oct 2010 03:52:55 +0000
Subject: [PATCH] libiwinfo: add restricted flag for freqlist

---
 contrib/package/iwinfo/Makefile             |  2 +-
 contrib/package/iwinfo/src/iwinfo.h         |  1 +
 contrib/package/iwinfo/src/iwinfo.lua       |  5 +++--
 contrib/package/iwinfo/src/iwinfo_lualib.c  |  4 ++++
 contrib/package/iwinfo/src/iwinfo_madwifi.c |  5 +++--
 contrib/package/iwinfo/src/iwinfo_nl80211.c | 12 +++++++++---
 contrib/package/iwinfo/src/iwinfo_wext.c    |  5 +++--
 7 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/contrib/package/iwinfo/Makefile b/contrib/package/iwinfo/Makefile
index 82c548273..e7e16f626 100644
--- a/contrib/package/iwinfo/Makefile
+++ b/contrib/package/iwinfo/Makefile
@@ -7,7 +7,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libiwinfo
-PKG_RELEASE:=5
+PKG_RELEASE:=6
 
 PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
 
diff --git a/contrib/package/iwinfo/src/iwinfo.h b/contrib/package/iwinfo/src/iwinfo.h
index 448655057..6d05289e9 100644
--- a/contrib/package/iwinfo/src/iwinfo.h
+++ b/contrib/package/iwinfo/src/iwinfo.h
@@ -66,6 +66,7 @@ struct iwinfo_txpwrlist_entry {
 struct iwinfo_freqlist_entry {
 	uint8_t channel;
 	uint32_t mhz;
+	uint8_t restricted;
 };
 
 struct iwinfo_crypto_entry {
diff --git a/contrib/package/iwinfo/src/iwinfo.lua b/contrib/package/iwinfo/src/iwinfo.lua
index f7dbf42fd..76b9e4ad1 100755
--- a/contrib/package/iwinfo/src/iwinfo.lua
+++ b/contrib/package/iwinfo/src/iwinfo.lua
@@ -105,9 +105,10 @@ function print_freqlist(api, dev)
 
 	if fl and #fl > 0 then
 		for _, fe in ipairs(fl) do
-			printf("%s %.3f GHz (Channel %d)",
+			printf("%s %.3f GHz (Channel %d)%s",
 				(cc == fe.channel) and "*" or " ",
-				n(fe.mhz) / 1000, n(fe.channel))
+				n(fe.mhz) / 1000, n(fe.channel),
+				fe.restricted and " [restricted]" or "")
 		end
 	else
 		print("No frequency information available")
diff --git a/contrib/package/iwinfo/src/iwinfo_lualib.c b/contrib/package/iwinfo/src/iwinfo_lualib.c
index 312a3dae7..95600c865 100644
--- a/contrib/package/iwinfo/src/iwinfo_lualib.c
+++ b/contrib/package/iwinfo/src/iwinfo_lualib.c
@@ -671,6 +671,10 @@ static int iwinfo_L_freqlist(lua_State *L, int (*func)(const char *, char *, int
 			lua_pushinteger(L, e->channel);
 			lua_setfield(L, -2, "channel");
 
+			/* Restricted (DFS/TPC/Radar) */
+			lua_pushboolean(L, e->restricted);
+			lua_setfield(L, -2, "restricted");
+
 			lua_rawseti(L, -2, x);
 		}
 	}
diff --git a/contrib/package/iwinfo/src/iwinfo_madwifi.c b/contrib/package/iwinfo/src/iwinfo_madwifi.c
index 9c3bb2688..5289f42e0 100644
--- a/contrib/package/iwinfo/src/iwinfo_madwifi.c
+++ b/contrib/package/iwinfo/src/iwinfo_madwifi.c
@@ -805,8 +805,9 @@ int madwifi_get_freqlist(const char *ifname, char *buf, int *len)
 
 		for( i = 0; i < chans.ic_nchans; i++ )
 		{
-			entry.mhz     = chans.ic_chans[i].ic_freq;
-			entry.channel = chans.ic_chans[i].ic_ieee;
+			entry.mhz        = chans.ic_chans[i].ic_freq;
+			entry.channel    = chans.ic_chans[i].ic_ieee;
+			entry.restricted = 0;
 
 			memcpy(&buf[bl], &entry, sizeof(struct iwinfo_freqlist_entry));
 			bl += sizeof(struct iwinfo_freqlist_entry);
diff --git a/contrib/package/iwinfo/src/iwinfo_nl80211.c b/contrib/package/iwinfo/src/iwinfo_nl80211.c
index ff30e0e94..6b980235e 100644
--- a/contrib/package/iwinfo/src/iwinfo_nl80211.c
+++ b/contrib/package/iwinfo/src/iwinfo_nl80211.c
@@ -1319,9 +1319,6 @@ int nl80211_get_freqlist(const char *ifname, char *buf, int *len)
 		[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32  },
 	};
 
-	if( !wext_get_freqlist(ifname, buf, len) )
-		return 0;
-
 	req = nl80211_msg(ifname, NL80211_CMD_GET_WIPHY, 0);
 	if( req )
 	{
@@ -1340,9 +1337,18 @@ int nl80211_get_freqlist(const char *ifname, char *buf, int *len)
 					nla_parse(freqs, NL80211_FREQUENCY_ATTR_MAX,
 						nla_data(freq), nla_len(freq), freq_policy);
 
+					if( freqs[NL80211_FREQUENCY_ATTR_DISABLED] )
+						continue;
+
 					e->mhz = nla_get_u32(freqs[NL80211_FREQUENCY_ATTR_FREQ]);
 					e->channel = nl80211_freq2channel(e->mhz);
 
+					e->restricted = (
+						freqs[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] ||
+						freqs[NL80211_FREQUENCY_ATTR_NO_IBSS]      ||
+						freqs[NL80211_FREQUENCY_ATTR_RADAR]
+					) ? 1 : 0;
+
 					e++;
 					count++;
 				}
diff --git a/contrib/package/iwinfo/src/iwinfo_wext.c b/contrib/package/iwinfo/src/iwinfo_wext.c
index e9e79e375..298fd9317 100644
--- a/contrib/package/iwinfo/src/iwinfo_wext.c
+++ b/contrib/package/iwinfo/src/iwinfo_wext.c
@@ -444,8 +444,9 @@ int wext_get_freqlist(const char *ifname, char *buf, int *len)
 
 		for(i = 0; i < range.num_frequency; i++)
 		{
-			entry.mhz     = wext_freq2mhz(&range.freq[i]);
-			entry.channel = range.freq[i].i;
+			entry.mhz        = wext_freq2mhz(&range.freq[i]);
+			entry.channel    = range.freq[i].i;
+			entry.restricted = 0;
 
 			memcpy(&buf[bl], &entry, sizeof(struct iwinfo_freqlist_entry));
 			bl += sizeof(struct iwinfo_freqlist_entry);
-- 
2.25.1