iw: document handler return value 1 as HANDLER_RET_USAGE

[thirdparty/iw.git] / ibss.c

diff --git a/ibss.c b/ibss.c
index 4715ac81b65ec6819c7d16d70475138f12999e71..beb74e52c6f80f99da1baa9981c2679544d74f0d 100644 (file)
--- a/ibss.c
+++ b/ibss.c
@@ -1,4 +1,9 @@
+#ifndef _POSIX_SOURCE
+#define _POSIX_SOURCE
+#endif
 #include <errno.h>
+#include <string.h>
+#include <strings.h>
 
 #include <netlink/genl/genl.h>
 #include <netlink/genl/family.h>
@@ -12,12 +17,50 @@
 SECTION(ibss);
 
 static int join_ibss(struct nl80211_state *state,
-                    struct nl_cb *cb,
                     struct nl_msg *msg,
-                    int argc, char **argv)
+                    int argc, char **argv,
+                    enum id_input id)
 {
        char *end;
        unsigned char abssid[6];
+       unsigned char rates[NL80211_MAX_SUPP_RATES];
+       int n_rates = 0;
+       char *value = NULL, *sptr = NULL;
+       float rate;
+       int bintval;
+       unsigned int i;
+       unsigned long freq;
+       const struct chanmode *chanmode_selected = NULL;
+       static const struct chanmode chanmode[] = {
+               { .name = "HT20",
+                 .width = NL80211_CHAN_WIDTH_20,
+                 .freq1_diff = 0,
+                 .chantype = NL80211_CHAN_HT20 },
+               { .name = "HT40+",
+                 .width = NL80211_CHAN_WIDTH_40,
+                 .freq1_diff = 10,
+                 .chantype = NL80211_CHAN_HT40PLUS },
+               { .name = "HT40-",
+                 .width = NL80211_CHAN_WIDTH_40,
+                 .freq1_diff = -10,
+                 .chantype = NL80211_CHAN_HT40MINUS },
+               { .name = "NOHT",
+                 .width = NL80211_CHAN_WIDTH_20_NOHT,
+                 .freq1_diff = 0,
+                 .chantype = NL80211_CHAN_NO_HT },
+               { .name = "5MHz",
+                 .width = NL80211_CHAN_WIDTH_5,
+                 .freq1_diff = 0,
+                 .chantype = -1 },
+               { .name = "10MHz",
+                 .width = NL80211_CHAN_WIDTH_10,
+                 .freq1_diff = 0,
+                 .chantype = -1 },
+               { .name = "80MHz",
+                 .width = NL80211_CHAN_WIDTH_80,
+                 .freq1_diff = 0,
+                 .chantype = -1 },
+       };
 
        if (argc < 2)
                return 1;
@@ -28,13 +71,37 @@ static int join_ibss(struct nl80211_state *state,
        argc--;
 
        /* freq */
-       NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ,
-                   strtoul(argv[0], &end, 10));
+       freq = strtoul(argv[0], &end, 10);
        if (*end != '\0')
                return 1;
+
+       NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
        argv++;
        argc--;
 
+       if (argc) {
+               for (i = 0; i < ARRAY_SIZE(chanmode); i++) {
+                       if (strcasecmp(chanmode[i].name, argv[0]) == 0) {
+                               chanmode_selected = &chanmode[i];
+                               break;
+                       }
+               }
+               if (chanmode_selected) {
+                       NLA_PUT_U32(msg, NL80211_ATTR_CHANNEL_WIDTH,
+                                   chanmode_selected->width);
+                       NLA_PUT_U32(msg, NL80211_ATTR_CENTER_FREQ1,
+                                   get_cf1(chanmode_selected, freq));
+                       if (chanmode_selected->chantype != -1)
+                               NLA_PUT_U32(msg,
+                                           NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+                                           chanmode_selected->chantype);
+
+                       argv++;
+                       argc--;
+               }
+
+       }
+
        if (argc && strcmp(argv[0], "fixed-freq") == 0) {
                NLA_PUT_FLAG(msg, NL80211_ATTR_FREQ_FIXED);
                argv++;
@@ -49,6 +116,57 @@ static int join_ibss(struct nl80211_state *state,
                }
        }
 
+       if (argc > 1 && strcmp(argv[0], "beacon-interval") == 0) {
+               argv++;
+               argc--;
+               bintval = strtoul(argv[0], &end, 10);
+               if (*end != '\0')
+                       return 1;
+               NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, bintval);
+               argv++;
+               argc--;
+       }
+
+       /* basic rates */
+       if (argc > 1 && strcmp(argv[0], "basic-rates") == 0) {
+               argv++;
+               argc--;
+
+               value = strtok_r(argv[0], ",", &sptr);
+
+               while (value && n_rates < NL80211_MAX_SUPP_RATES) {
+                       rate = strtod(value, &end);
+                       rates[n_rates] = rate * 2;
+
+                       /* filter out suspicious values  */
+                       if (*end != '\0' || !rates[n_rates] ||
+                           rate*2 != rates[n_rates])
+                               return 1;
+
+                       n_rates++;
+                       value = strtok_r(NULL, ",", &sptr);
+               }
+
+               NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, n_rates, rates);
+
+               argv++;
+               argc--;
+       }
+
+       /* multicast rate */
+       if (argc > 1 && strcmp(argv[0], "mcast-rate") == 0) {
+               argv++;
+               argc--;
+
+               rate = strtod(argv[0], &end);
+               if (*end != '\0')
+                       return 1;
+
+               NLA_PUT_U32(msg, NL80211_ATTR_MCAST_RATE, (int)(rate * 10));
+               argv++;
+               argc--;
+       }
+
        if (!argc)
                return 0;
 
@@ -64,19 +182,23 @@ static int join_ibss(struct nl80211_state *state,
 }
 
 static int leave_ibss(struct nl80211_state *state,
-                     struct nl_cb *cb,
                      struct nl_msg *msg,
-                     int argc, char **argv)
+                     int argc, char **argv,
+                     enum id_input id)
 {
        return 0;
 }
 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>] [key d:0:abcde]",
+COMMAND(ibss, join,
+       "<SSID> <freq in MHz> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz] [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,
        "Join the IBSS cell with the given SSID, if it doesn't exist create\n"
        "it on the given frequency. When fixed frequency is requested, don't\n"
        "join/create a cell on a different frequency. When a fixed BSSID is\n"
        "requested use that BSSID and do not adopt another cell's BSSID even\n"
-       "if it has higher TSF and the same SSID.");
+       "if it has higher TSF and the same SSID. If an IBSS is created, create\n"
+       "it with the specified basic-rates, multicast-rate and beacon-interval.");