iw: add support for configuring HT IBSS

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27278 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/iw/patches/120-ibss_ht.patch b/package/iw/patches/120-ibss_ht.patch
new file mode 100644 (file)
index 0000000..1e6c34e
--- /dev/null
+++ b/package/iw/patches/120-ibss_ht.patch
@@ -0,0 +1,113 @@
+--- a/ibss.c
++++ b/ibss.c
+@@ -27,6 +27,7 @@ static int join_ibss(struct nl80211_stat
+       char *value = NULL, *sptr = NULL;
+       float rate;
+       int bintval;
++      unsigned int htval;
+ 
+       if (argc < 2)
+               return 1;
+@@ -44,6 +45,12 @@ static int join_ibss(struct nl80211_stat
+       argv++;
+       argc--;
+ 
++      if (argc && parse_channel_type(argv[0], &htval)) {
++              NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, htval);
++              argv++;
++              argc--;
++      }
++
+       if (argc && strcmp(argv[0], "fixed-freq") == 0) {
+               NLA_PUT_FLAG(msg, NL80211_ATTR_FREQ_FIXED);
+               argv++;
+@@ -134,7 +141,7 @@ COMMAND(ibss, leave, NULL,
+       NL80211_CMD_LEAVE_IBSS, 0, CIB_NETDEV, leave_ibss,
+       "Leave the current IBSS cell.");
+ COMMAND(ibss, join,
+-      "<SSID> <freq in MHz> [fixed-freq] [<fixed bssid>] [beacon-interval <TU>]"
++      "<SSID> <freq in MHz> [HT20|HT40+|HT40-] [fixed-freq] [<fixed bssid>] [beacon-interval <TU>]"
+       " [basic-rates <rate in Mbps,rate2,...>] [mcast-rate <rate in Mbps>] "
+       "[key d:0:abcde]",
+       NL80211_CMD_JOIN_IBSS, 0, CIB_NETDEV, join_ibss,
+--- a/iw.h
++++ b/iw.h
+@@ -130,6 +130,7 @@ void mac_addr_n2a(char *mac_addr, unsign
+ unsigned char *parse_hex(char *hex, size_t *outlen);
+ 
+ int parse_keys(struct nl_msg *msg, char **argv, int argc);
++int parse_channel_type(const char *str, unsigned int *htval);
+ 
+ void print_ht_mcs(const __u8 *mcs);
+ void print_ampdu_length(__u8 exponent);
+--- a/phy.c
++++ b/phy.c
+@@ -33,30 +33,14 @@ static int handle_freqchan(struct nl_msg
+                          int argc, char **argv)
+ {
+       char *end;
+-      static const struct {
+-              const char *name;
+-              unsigned int val;
+-      } htmap[] = {
+-              { .name = "HT20", .val = NL80211_CHAN_HT20, },
+-              { .name = "HT40+", .val = NL80211_CHAN_HT40PLUS, },
+-              { .name = "HT40-", .val = NL80211_CHAN_HT40MINUS, },
+-      };
+       unsigned int htval = NL80211_CHAN_NO_HT;
+       unsigned int freq;
+-      int i;
+ 
+       if (!argc || argc > 2)
+               return 1;
+ 
+-      if (argc == 2) {
+-              for (i = 0; i < ARRAY_SIZE(htmap); i++) {
+-                      if (strcasecmp(htmap[i].name, argv[1]) == 0) {
+-                              htval = htmap[i].val;
+-                              break;
+-                      }
+-              }
+-              if (htval == NL80211_CHAN_NO_HT)
+-                      return 1;
++      if (argc == 2 && !parse_channel_type(argv[1], &htval)) {
++              return 1;
+       }
+ 
+       if (!*argv[0])
+--- a/util.c
++++ b/util.c
+@@ -345,6 +345,33 @@ int parse_keys(struct nl_msg *msg, char 
+       return 2;
+ }
+ 
++/*
++ * Convert a string "HT20", "HT40+" or "HT40-" into nl80211
++ * value. Conversion is case insensitive. Returns 1 on success, 0 on error.
++ */
++
++int parse_channel_type(const char *str, unsigned int *htval)
++{
++      static const struct {
++              const char *name;
++              unsigned int val;
++      } htmap[] = {
++              { .name = "HT20", .val = NL80211_CHAN_HT20, },
++              { .name = "HT40+", .val = NL80211_CHAN_HT40PLUS, },
++              { .name = "HT40-", .val = NL80211_CHAN_HT40MINUS, },
++      };
++      int i;
++
++      for (i = 0; i < ARRAY_SIZE(htmap); i++) {
++              if (strcasecmp(htmap[i].name, str) == 0) {
++                      *htval = htmap[i].val;
++                      return 1;
++              }
++      }
++
++      return 0;
++}
++
+ static void print_mcs_index(const __u8 *mcs)
+ {
+       unsigned int mcs_bit, prev_bit = -2, prev_cont = 0;