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madwifi: clean up scanning code, add support for changing scan lists
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11315 3c298f89-4303-0410-b956-a3cf2f4a3e73
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890
package/madwifi/patches/351-scanlist.patch
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890
package/madwifi/patches/351-scanlist.patch
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@ -0,0 +1,890 @@
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Index: madwifi-trunk-r3314/net80211/ieee80211_scan_sta.c
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===================================================================
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--- madwifi-trunk-r3314.orig/net80211/ieee80211_scan_sta.c 2008-06-01 03:41:58.000000000 +0200
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+++ madwifi-trunk-r3314/net80211/ieee80211_scan_sta.c 2008-06-01 03:42:18.000000000 +0200
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@@ -317,147 +317,6 @@
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#undef ISPROBE
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}
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-static struct ieee80211_channel *
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-find11gchannel(struct ieee80211com *ic, int i, int freq)
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-{
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- struct ieee80211_channel *c;
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- int j;
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-
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- /*
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- * The normal ordering in the channel list is b channel
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- * immediately followed by g so optimize the search for
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- * this. We'll still do a full search just in case.
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- */
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- for (j = i+1; j < ic->ic_nchans; j++) {
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- c = &ic->ic_channels[j];
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- if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
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- return c;
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- }
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- for (j = 0; j < i; j++) {
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- c = &ic->ic_channels[j];
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- if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
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- return c;
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- }
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- return NULL;
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-}
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-static const u_int chanflags[] = {
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- IEEE80211_CHAN_B, /* IEEE80211_MODE_AUTO */
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- IEEE80211_CHAN_A, /* IEEE80211_MODE_11A */
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- IEEE80211_CHAN_B, /* IEEE80211_MODE_11B */
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- IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_11G */
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- IEEE80211_CHAN_FHSS, /* IEEE80211_MODE_FH */
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- IEEE80211_CHAN_A, /* IEEE80211_MODE_TURBO_A */ /* for turbo mode look for AP in normal channel */
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- IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_TURBO_G */
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- IEEE80211_CHAN_ST, /* IEEE80211_MODE_TURBO_STATIC_A */
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-};
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-
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-static void
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-add_channels(struct ieee80211com *ic,
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- struct ieee80211_scan_state *ss,
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- enum ieee80211_phymode mode, const u_int16_t freq[], int nfreq)
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-{
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- struct ieee80211_channel *c, *cg;
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- u_int modeflags;
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- int i;
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-
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- KASSERT(mode < ARRAY_SIZE(chanflags), ("Unexpected mode %u", mode));
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- modeflags = chanflags[mode];
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- for (i = 0; i < nfreq; i++) {
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- c = ieee80211_find_channel(ic, freq[i], modeflags);
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- if (c == NULL || isclr(ic->ic_chan_active, c->ic_ieee))
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- continue;
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- if (mode == IEEE80211_MODE_AUTO) {
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- /*
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- * XXX special-case 11b/g channels so we select
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- * the g channel if both are present.
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- */
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- if (IEEE80211_IS_CHAN_B(c) &&
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- (cg = find11gchannel(ic, i, c->ic_freq)) != NULL)
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- c = cg;
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- }
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- if (ss->ss_last >= IEEE80211_SCAN_MAX)
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- break;
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- ss->ss_chans[ss->ss_last++] = c;
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- }
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-}
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-
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-static const u_int16_t rcl1[] = /* 8 FCC channel: 52, 56, 60, 64, 36, 40, 44, 48 */
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-{ 5260, 5280, 5300, 5320, 5180, 5200, 5220, 5240 };
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-static const u_int16_t rcl2[] = /* 4 MKK channels: 34, 38, 42, 46 */
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-{ 5170, 5190, 5210, 5230 };
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-static const u_int16_t rcl3[] = /* 2.4Ghz ch: 1,6,11,7,13 */
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-{ 2412, 2437, 2462, 2442, 2472 };
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-static const u_int16_t rcl4[] = /* 5 FCC channel: 149, 153, 161, 165 */
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-{ 5745, 5765, 5785, 5805, 5825 };
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-static const u_int16_t rcl7[] = /* 11 ETSI channel: 100,104,108,112,116,120,124,128,132,136,140 */
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-{ 5500, 5520, 5540, 5560, 5580, 5600, 5620, 5640, 5660, 5680, 5700 };
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-static const u_int16_t rcl8[] = /* 2.4Ghz ch: 2,3,4,5,8,9,10,12 */
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-{ 2417, 2422, 2427, 2432, 2447, 2452, 2457, 2467 };
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-static const u_int16_t rcl9[] = /* 2.4Ghz ch: 14 */
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-{ 2484 };
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-static const u_int16_t rcl10[] = /* Added Korean channels 2312-2372 */
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-{ 2312, 2317, 2322, 2327, 2332, 2337, 2342, 2347, 2352, 2357, 2362, 2367, 2372 };
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-static const u_int16_t rcl11[] = /* Added Japan channels in 4.9/5.0 spectrum */
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-{ 5040, 5060, 5080, 4920, 4940, 4960, 4980 };
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-#ifdef ATH_TURBO_SCAN
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-static const u_int16_t rcl5[] = /* 3 static turbo channels */
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-{ 5210, 5250, 5290 };
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-static const u_int16_t rcl6[] = /* 2 static turbo channels */
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-{ 5760, 5800 };
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-static const u_int16_t rcl6x[] = /* 4 FCC3 turbo channels */
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-{ 5540, 5580, 5620, 5660 };
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-static const u_int16_t rcl12[] = /* 2.4Ghz Turbo channel 6 */
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-{ 2437 };
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-static const u_int16_t rcl13[] = /* dynamic Turbo channels */
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-{ 5200, 5240, 5280, 5765, 5805 };
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-#endif /* ATH_TURBO_SCAN */
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-
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-struct scanlist {
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- u_int16_t mode;
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- u_int16_t count;
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- const u_int16_t *list;
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-};
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-
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-#define IEEE80211_MODE_TURBO_STATIC_A IEEE80211_MODE_MAX
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-#define X(a) .count = sizeof(a)/sizeof(a[0]), .list = a
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-
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-static const struct scanlist staScanTable[] = {
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- { IEEE80211_MODE_11B, X(rcl3) },
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- { IEEE80211_MODE_11A, X(rcl1) },
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- { IEEE80211_MODE_11A, X(rcl2) },
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- { IEEE80211_MODE_11B, X(rcl8) },
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- { IEEE80211_MODE_11B, X(rcl9) },
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- { IEEE80211_MODE_11A, X(rcl4) },
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-#ifdef ATH_TURBO_SCAN
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- { IEEE80211_MODE_TURBO_STATIC_A, X(rcl5) },
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- { IEEE80211_MODE_TURBO_STATIC_A, X(rcl6) },
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- { IEEE80211_MODE_TURBO_A, X(rcl6x) },
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- { IEEE80211_MODE_TURBO_A, X(rcl13) },
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-#endif /* ATH_TURBO_SCAN */
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- { IEEE80211_MODE_11A, X(rcl7) },
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- { IEEE80211_MODE_11B, X(rcl10) },
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- { IEEE80211_MODE_11A, X(rcl11) },
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-#ifdef ATH_TURBO_SCAN
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- { IEEE80211_MODE_TURBO_G, X(rcl12) },
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-#endif /* ATH_TURBO_SCAN */
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- { .list = NULL }
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-};
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-
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-#undef X
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-
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-static int
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-checktable(const struct scanlist *scan, const struct ieee80211_channel *c)
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-{
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- int i;
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-
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- for (; scan->list != NULL; scan++) {
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- for (i = 0; i < scan->count; i++)
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- if (scan->list[i] == c->ic_freq)
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- return 1;
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- }
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- return 0;
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-}
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-
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/*
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* Start a station-mode scan by populating the channel list.
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*/
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@@ -466,81 +325,14 @@
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{
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struct ieee80211com *ic = vap->iv_ic;
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struct sta_table *st = ss->ss_priv;
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- const struct scanlist *scan;
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enum ieee80211_phymode mode;
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struct ieee80211_channel *c;
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int i;
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ss->ss_last = 0;
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- /*
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- * Use the table of ordered channels to construct the list
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- * of channels for scanning. Any channels in the ordered
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- * list not in the master list will be discarded.
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- */
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- for (scan = staScanTable; scan->list != NULL; scan++) {
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- mode = scan->mode;
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- if (vap->iv_des_mode != IEEE80211_MODE_AUTO) {
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- /*
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- * If a desired mode was specified, scan only
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- * channels that satisfy that constraint.
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- */
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- if (vap->iv_des_mode != mode) {
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- /*
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- * The scan table marks 2.4Ghz channels as b
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- * so if the desired mode is 11g, then use
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- * the 11b channel list but upgrade the mode.
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- */
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- if (vap->iv_des_mode != IEEE80211_MODE_11G ||
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- mode != IEEE80211_MODE_11B)
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- continue;
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- mode = IEEE80211_MODE_11G; /* upgrade */
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- }
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- } else {
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- /*
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- * This lets ieee80211_scan_add_channels
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- * upgrade an 11b channel to 11g if available.
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- */
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- if (mode == IEEE80211_MODE_11B)
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- mode = IEEE80211_MODE_AUTO;
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- }
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- /* XR does not operate on turbo channels */
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- if ((vap->iv_flags & IEEE80211_F_XR) &&
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- (mode == IEEE80211_MODE_TURBO_A ||
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- mode == IEEE80211_MODE_TURBO_G))
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- continue;
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- /*
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- * Add the list of the channels; any that are not
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- * in the master channel list will be discarded.
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- */
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- add_channels(ic, ss, mode, scan->list, scan->count);
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- }
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-
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- /*
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- * Add the channels from the ic (from HAL) that are not present
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- * in the staScanTable.
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- */
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- for (i = 0; i < ic->ic_nchans; i++) {
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- c = &ic->ic_channels[i];
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- /*
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- * scan dynamic turbo channels in normal mode.
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- */
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- if (IEEE80211_IS_CHAN_DTURBO(c))
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- continue;
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- mode = ieee80211_chan2mode(c);
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- if (vap->iv_des_mode != IEEE80211_MODE_AUTO) {
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- /*
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- * If a desired mode was specified, scan only
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- * channels that satisfy that constraint.
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- */
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- if (vap->iv_des_mode != mode)
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- continue;
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-
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- }
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- if (!checktable(staScanTable, c))
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- ss->ss_chans[ss->ss_last++] = c;
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- }
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-
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+ ieee80211_scan_add_channels(ic, ss, vap->iv_des_mode);
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ss->ss_next = 0;
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+
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/* XXX tunables */
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/*
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* The scanner will stay on station for ss_maxdwell ms (using a
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@@ -749,17 +541,7 @@
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fail = 0;
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if (isclr(ic->ic_chan_active, ieee80211_chan2ieee(ic, se->se_chan)))
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fail |= 0x01;
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- /*
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- * NB: normally the desired mode is used to construct
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- * the channel list, but it's possible for the scan
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- * cache to include entries for stations outside this
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- * list so we check the desired mode here to weed them
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- * out.
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- */
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- if (vap->iv_des_mode != IEEE80211_MODE_AUTO &&
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- (se->se_chan->ic_flags & IEEE80211_CHAN_ALLTURBO) !=
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- chanflags[vap->iv_des_mode])
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- fail |= 0x01;
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+
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if (vap->iv_opmode == IEEE80211_M_IBSS) {
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if ((se->se_capinfo & IEEE80211_CAPINFO_IBSS) == 0)
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fail |= 0x02;
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@@ -1168,78 +950,6 @@
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.scan_default = ieee80211_sta_join,
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};
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-/*
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- * Start an adhoc-mode scan by populating the channel list.
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- */
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-static int
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-adhoc_start(struct ieee80211_scan_state *ss, struct ieee80211vap *vap)
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-{
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- struct ieee80211com *ic = vap->iv_ic;
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- struct sta_table *st = ss->ss_priv;
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- const struct scanlist *scan;
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- enum ieee80211_phymode mode;
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-
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- ss->ss_last = 0;
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- /*
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- * Use the table of ordered channels to construct the list
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- * of channels for scanning. Any channels in the ordered
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- * list not in the master list will be discarded.
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- */
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- for (scan = staScanTable; scan->list != NULL; scan++) {
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- mode = scan->mode;
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- if (vap->iv_des_mode != IEEE80211_MODE_AUTO) {
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- /*
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- * If a desired mode was specified, scan only
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- * channels that satisfy that constraint.
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- */
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- if (vap->iv_des_mode != mode) {
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- /*
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- * The scan table marks 2.4Ghz channels as b
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- * so if the desired mode is 11g, then use
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- * the 11b channel list but upgrade the mode.
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- */
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- if (vap->iv_des_mode != IEEE80211_MODE_11G ||
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- mode != IEEE80211_MODE_11B)
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- continue;
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- mode = IEEE80211_MODE_11G; /* upgrade */
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- }
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- } else {
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- /*
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- * This lets ieee80211_scan_add_channels
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- * upgrade an 11b channel to 11g if available.
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- */
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- if (mode == IEEE80211_MODE_11B)
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- mode = IEEE80211_MODE_AUTO;
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- }
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- /* XR does not operate on turbo channels */
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- if ((vap->iv_flags & IEEE80211_F_XR) &&
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- (mode == IEEE80211_MODE_TURBO_A ||
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- mode == IEEE80211_MODE_TURBO_G))
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- continue;
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- /*
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- * Add the list of the channels; any that are not
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- * in the master channel list will be discarded.
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- */
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- add_channels(ic, ss, mode, scan->list, scan->count);
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- }
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- ss->ss_next = 0;
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- /* XXX tunables */
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- ss->ss_mindwell = msecs_to_jiffies(200); /* 200ms */
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- ss->ss_maxdwell = msecs_to_jiffies(200); /* 200ms */
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-
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-#ifdef IEEE80211_DEBUG
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- if (ieee80211_msg_scan(vap)) {
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- printk("%s: scan set ", vap->iv_dev->name);
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- ieee80211_scan_dump_channels(ss);
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- printk(" dwell min %ld max %ld\n",
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- ss->ss_mindwell, ss->ss_maxdwell);
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- }
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-#endif /* IEEE80211_DEBUG */
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-
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- st->st_newscan = 1;
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-
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- return 0;
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-}
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/*
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* Select a channel to start an adhoc network on.
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@@ -1405,7 +1115,7 @@
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.scan_name = "default",
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.scan_attach = sta_attach,
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.scan_detach = sta_detach,
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- .scan_start = adhoc_start,
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+ .scan_start = sta_start,
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.scan_restart = sta_restart,
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.scan_cancel = sta_cancel,
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.scan_end = adhoc_pick_bss,
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Index: madwifi-trunk-r3314/net80211/ieee80211.c
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===================================================================
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--- madwifi-trunk-r3314.orig/net80211/ieee80211.c 2008-06-01 03:41:58.000000000 +0200
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+++ madwifi-trunk-r3314/net80211/ieee80211.c 2008-06-01 03:42:18.000000000 +0200
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@@ -278,6 +278,11 @@
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("channel with bogus ieee number %u", c->ic_ieee));
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setbit(ic->ic_chan_avail, c->ic_ieee);
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+ if (c->ic_scanflags & IEEE80211_NOSCAN_DEFAULT)
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+ c->ic_scanflags |= IEEE80211_NOSCAN_SET;
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+ else
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+ c->ic_scanflags &= ~IEEE80211_NOSCAN_SET;
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+
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/* Identify mode capabilities. */
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if (IEEE80211_IS_CHAN_A(c))
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ic->ic_modecaps |= 1 << IEEE80211_MODE_11A;
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Index: madwifi-trunk-r3314/net80211/_ieee80211.h
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===================================================================
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--- madwifi-trunk-r3314.orig/net80211/_ieee80211.h 2008-06-01 03:41:58.000000000 +0200
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+++ madwifi-trunk-r3314/net80211/_ieee80211.h 2008-06-01 03:42:18.000000000 +0200
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@@ -132,6 +132,11 @@
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IEEE80211_SCAN_FIRST = 2, /* take first suitable candidate */
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};
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+enum ieee80211_scanflags {
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+ IEEE80211_NOSCAN_DEFAULT = (1 << 0),
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+ IEEE80211_NOSCAN_SET = (1 << 1),
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+};
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+
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/*
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* Channels are specified by frequency and attributes.
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*/
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@@ -142,6 +147,7 @@
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int8_t ic_maxregpower; /* maximum regulatory tx power in dBm */
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int8_t ic_maxpower; /* maximum tx power in dBm */
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int8_t ic_minpower; /* minimum tx power in dBm */
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+ u_int8_t ic_scanflags;
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};
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#define IEEE80211_CHAN_MAX 255
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Index: madwifi-trunk-r3314/net80211/ieee80211_ioctl.h
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===================================================================
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--- madwifi-trunk-r3314.orig/net80211/ieee80211_ioctl.h 2008-06-01 03:41:58.000000000 +0200
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+++ madwifi-trunk-r3314/net80211/ieee80211_ioctl.h 2008-06-01 03:42:18.000000000 +0200
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@@ -555,6 +555,7 @@
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#define IEEE80211_IOCTL_WDSADDMAC (SIOCIWFIRSTPRIV+26)
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#define IEEE80211_IOCTL_WDSDELMAC (SIOCIWFIRSTPRIV+28)
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#define IEEE80211_IOCTL_KICKMAC (SIOCIWFIRSTPRIV+30)
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+#define IEEE80211_IOCTL_SETSCANLIST (SIOCIWFIRSTPRIV+31)
|
||||
|
||||
enum {
|
||||
IEEE80211_WMMPARAMS_CWMIN = 1,
|
||||
Index: madwifi-trunk-r3314/net80211/ieee80211_scan_ap.c
|
||||
===================================================================
|
||||
--- madwifi-trunk-r3314.orig/net80211/ieee80211_scan_ap.c 2008-06-01 03:41:58.000000000 +0200
|
||||
+++ madwifi-trunk-r3314/net80211/ieee80211_scan_ap.c 2008-06-01 03:42:18.000000000 +0200
|
||||
@@ -129,131 +129,7 @@
|
||||
|
||||
static int ap_flush(struct ieee80211_scan_state *);
|
||||
static void action_tasklet(IEEE80211_TQUEUE_ARG);
|
||||
-static struct ieee80211_channel *find11gchannel(struct ieee80211com *ic,
|
||||
- int i, int freq);
|
||||
|
||||
-static const u_int chanflags[] = {
|
||||
- IEEE80211_CHAN_B, /* IEEE80211_MODE_AUTO */
|
||||
- IEEE80211_CHAN_A, /* IEEE80211_MODE_11A */
|
||||
- IEEE80211_CHAN_B, /* IEEE80211_MODE_11B */
|
||||
- IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_11G */
|
||||
- IEEE80211_CHAN_FHSS, /* IEEE80211_MODE_FH */
|
||||
- IEEE80211_CHAN_A, /* IEEE80211_MODE_TURBO_A */ /* for turbo mode
|
||||
- * look for AP in
|
||||
- * normal channel
|
||||
- */
|
||||
- IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_TURBO_G */
|
||||
- IEEE80211_CHAN_ST, /* IEEE80211_MODE_TURBO_STATIC_A */
|
||||
-};
|
||||
-
|
||||
-static const u_int16_t rcl1[] = /* 8 FCC channel: 52, 56, 60, 64,
|
||||
- * 36, 40, 44, 48 */
|
||||
-{ 5260, 5280, 5300, 5320, 5180, 5200, 5220, 5240 };
|
||||
-static const u_int16_t rcl2[] = /* 4 MKK channels: 34, 38, 42, 46 */
|
||||
-{ 5170, 5190, 5210, 5230 };
|
||||
-static const u_int16_t rcl3[] = /* 2.4Ghz ch: 1,6,11,7,13 */
|
||||
-{ 2412, 2437, 2462, 2442, 2472 };
|
||||
-static const u_int16_t rcl4[] = /* 5 FCC channel: 149, 153, 161, 165 */
|
||||
-{ 5745, 5765, 5785, 5805, 5825 };
|
||||
-static const u_int16_t rcl7[] = /* 11 ETSI channel: 100, 104, 108, 112,
|
||||
- * 116, 120, 124, 128,
|
||||
- * 132, 136, 140 */
|
||||
-{ 5500, 5520, 5540, 5560, 5580, 5600, 5620, 5640, 5660, 5680, 5700 };
|
||||
-static const u_int16_t rcl8[] = /* 2.4Ghz ch: 2,3,4,5,8,9,10,12 */
|
||||
-{ 2417, 2422, 2427, 2432, 2447, 2452, 2457, 2467 };
|
||||
-static const u_int16_t rcl9[] = /* 2.4Ghz ch: 14 */
|
||||
-{ 2484 };
|
||||
-static const u_int16_t rcl10[] = /* Added Korean channels 2312-2372 */
|
||||
-{ 2312, 2317, 2322, 2327, 2332, 2337, 2342, 2347, 2352, 2357, 2362, 2367, 2372 };
|
||||
-static const u_int16_t rcl11[] = /* Added Japan channels in 4.9/5.0 spectrum */
|
||||
-{ 5040, 5060, 5080, 4920, 4940, 4960, 4980 };
|
||||
-#ifdef ATH_TURBO_SCAN
|
||||
-static const u_int16_t rcl5[] = /* 3 static turbo channels */
|
||||
-{ 5210, 5250, 5290 };
|
||||
-static const u_int16_t rcl6[] = /* 2 static turbo channels */
|
||||
-{ 5760, 5800 };
|
||||
-static const u_int16_t rcl6x[] = /* 4 FCC3 turbo channels */
|
||||
-{ 5540, 5580, 5620, 5660 };
|
||||
-static const u_int16_t rcl12[] = /* 2.4Ghz Turbo channel 6 */
|
||||
-{ 2437 };
|
||||
-static const u_int16_t rcl13[] = /* dynamic Turbo channels */
|
||||
-{ 5200, 5240, 5280, 5765, 5805 };
|
||||
-#endif /* ATH_TURBO_SCAN */
|
||||
-
|
||||
-struct scanlist {
|
||||
- u_int16_t mode;
|
||||
- u_int16_t count;
|
||||
- const u_int16_t *list;
|
||||
-};
|
||||
-
|
||||
-#define IEEE80211_MODE_TURBO_STATIC_A IEEE80211_MODE_MAX
|
||||
-#define X(a) .count = ARRAY_SIZE(a), .list = a
|
||||
-
|
||||
-static const struct scanlist staScanTable[] = {
|
||||
- { IEEE80211_MODE_11B, X(rcl3) },
|
||||
- { IEEE80211_MODE_11A, X(rcl1) },
|
||||
- { IEEE80211_MODE_11A, X(rcl2) },
|
||||
- { IEEE80211_MODE_11B, X(rcl8) },
|
||||
- { IEEE80211_MODE_11B, X(rcl9) },
|
||||
- { IEEE80211_MODE_11A, X(rcl4) },
|
||||
-#ifdef ATH_TURBO_SCAN
|
||||
- { IEEE80211_MODE_TURBO_STATIC_A, X(rcl5) },
|
||||
- { IEEE80211_MODE_TURBO_STATIC_A, X(rcl6) },
|
||||
- { IEEE80211_MODE_TURBO_A, X(rcl6x) },
|
||||
- { IEEE80211_MODE_TURBO_A, X(rcl13) },
|
||||
-#endif /* ATH_TURBO_SCAN */
|
||||
- { IEEE80211_MODE_11A, X(rcl7) },
|
||||
- { IEEE80211_MODE_11B, X(rcl10) },
|
||||
- { IEEE80211_MODE_11A, X(rcl11) },
|
||||
-#ifdef ATH_TURBO_SCAN
|
||||
- { IEEE80211_MODE_TURBO_G, X(rcl12) },
|
||||
-#endif /* ATH_TURBO_SCAN */
|
||||
- { .list = NULL }
|
||||
-};
|
||||
-
|
||||
-#undef X
|
||||
-/* This function must be invoked with locks acquired */
|
||||
-static void
|
||||
-add_channels(struct ieee80211com *ic,
|
||||
- struct ieee80211_scan_state *ss,
|
||||
- enum ieee80211_phymode mode, const u_int16_t freq[], int nfreq)
|
||||
-{
|
||||
- struct ieee80211_channel *c, *cg;
|
||||
- u_int modeflags;
|
||||
- int i;
|
||||
-
|
||||
- KASSERT(mode < ARRAY_SIZE(chanflags), ("Unexpected mode %u", mode));
|
||||
- modeflags = chanflags[mode];
|
||||
- for (i = 0; i < nfreq; i++) {
|
||||
- c = ieee80211_find_channel(ic, freq[i], modeflags);
|
||||
- if ((c == NULL) || isclr(ic->ic_chan_active, c->ic_ieee))
|
||||
- continue;
|
||||
- if (mode == IEEE80211_MODE_AUTO) {
|
||||
- /* XXX special-case 11b/g channels so we select
|
||||
- * the g channel if both are present. */
|
||||
- if (IEEE80211_IS_CHAN_B(c) &&
|
||||
- (cg = find11gchannel(ic, i, c->ic_freq)) != NULL)
|
||||
- c = cg;
|
||||
- }
|
||||
- if (ss->ss_last >= IEEE80211_SCAN_MAX)
|
||||
- break;
|
||||
- ss->ss_chans[ss->ss_last++] = c;
|
||||
- }
|
||||
-}
|
||||
-
|
||||
-/* This function must be invoked with locks acquired */
|
||||
-static int
|
||||
-checktable(const struct scanlist *scan, const struct ieee80211_channel *c)
|
||||
-{
|
||||
- int i;
|
||||
-
|
||||
- for (; scan->list != NULL; scan++) {
|
||||
- for (i = 0; i < scan->count; i++)
|
||||
- if (scan->list[i] == c->ic_freq)
|
||||
- return 1;
|
||||
- }
|
||||
- return 0;
|
||||
-}
|
||||
|
||||
/*
|
||||
* Attach prior to any scanning work.
|
||||
@@ -327,29 +203,6 @@
|
||||
ieee80211_saveie(iep, ie);
|
||||
}
|
||||
|
||||
-/* This function must be invoked with locks acquired */
|
||||
-static struct ieee80211_channel *
|
||||
-find11gchannel(struct ieee80211com *ic, int i, int freq)
|
||||
-{
|
||||
- struct ieee80211_channel *c;
|
||||
- int j;
|
||||
-
|
||||
- /* The normal ordering in the channel list is b channel
|
||||
- * immediately followed by g so optimize the search for
|
||||
- * this. We'll still do a full search just in case. */
|
||||
- for (j = i + 1; j < ic->ic_nchans; j++) {
|
||||
- c = &ic->ic_channels[j];
|
||||
- if ((c->ic_freq == freq) && IEEE80211_IS_CHAN_ANYG(c))
|
||||
- return c;
|
||||
- }
|
||||
- for (j = 0; j < i; j++) {
|
||||
- c = &ic->ic_channels[j];
|
||||
- if ((c->ic_freq == freq) && IEEE80211_IS_CHAN_ANYG(c))
|
||||
- return c;
|
||||
- }
|
||||
- return NULL;
|
||||
-}
|
||||
-
|
||||
/*
|
||||
* Start an ap scan by populating the channel list.
|
||||
*/
|
||||
@@ -358,8 +211,6 @@
|
||||
{
|
||||
struct ap_state *as = ss->ss_priv;
|
||||
struct ieee80211com *ic = NULL;
|
||||
- const struct scanlist *sl = NULL;
|
||||
- struct ieee80211_channel *c = NULL;
|
||||
int i;
|
||||
unsigned int mode = 0;
|
||||
|
||||
@@ -368,80 +219,8 @@
|
||||
/* Determine mode flags to match, or leave zero for auto mode */
|
||||
as->as_vap_desired_mode = vap->iv_des_mode;
|
||||
as->as_required_mode = 0;
|
||||
- if (as->as_vap_desired_mode != IEEE80211_MODE_AUTO) {
|
||||
- as->as_required_mode = chanflags[as->as_vap_desired_mode];
|
||||
- if ((vap->iv_ath_cap & IEEE80211_ATHC_TURBOP) &&
|
||||
- (as->as_required_mode != IEEE80211_CHAN_ST)) {
|
||||
- /* Fixup for dynamic turbo flags */
|
||||
- if (as->as_vap_desired_mode == IEEE80211_MODE_11G)
|
||||
- as->as_required_mode = IEEE80211_CHAN_108G;
|
||||
- else
|
||||
- as->as_required_mode = IEEE80211_CHAN_108A;
|
||||
- }
|
||||
- }
|
||||
-
|
||||
- ss->ss_last = 0;
|
||||
- /* Use the table of ordered channels to construct the list
|
||||
- * of channels for scanning. Any channels in the ordered
|
||||
- * list not in the master list will be discarded. */
|
||||
- for (sl = staScanTable; sl->list != NULL; sl++) {
|
||||
- mode = sl->mode;
|
||||
-
|
||||
- /* The scan table marks 2.4Ghz channels as b
|
||||
- * so if the desired mode is 11g, then use
|
||||
- * the 11b channel list but upgrade the mode. */
|
||||
- if (as->as_vap_desired_mode &&
|
||||
- (as->as_vap_desired_mode != mode) &&
|
||||
- (as->as_vap_desired_mode == IEEE80211_MODE_11G) &&
|
||||
- (mode == IEEE80211_MODE_11B))
|
||||
- mode = IEEE80211_MODE_11G;
|
||||
-
|
||||
- /* If we are in "AUTO" mode, upgrade the mode to auto.
|
||||
- * This lets add_channels upgrade an 11b channel to
|
||||
- * 11g if available. */
|
||||
- if (!as->as_vap_desired_mode && (mode == IEEE80211_MODE_11B))
|
||||
- mode = IEEE80211_MODE_AUTO;
|
||||
-
|
||||
- /* Add the list of the channels; any that are not
|
||||
- * in the master channel list will be discarded. */
|
||||
- add_channels(ic, ss, mode, sl->list, sl->count);
|
||||
- }
|
||||
-
|
||||
- /* Add the channels from the ic (from HAL) that are not present
|
||||
- * in the staScanTable, assuming they pass the sanity checks... */
|
||||
- for (i = 0; i < ic->ic_nchans; i++) {
|
||||
- c = &ic->ic_channels[i];
|
||||
-
|
||||
- /* XR is not supported on turbo channels */
|
||||
- if (IEEE80211_IS_CHAN_TURBO(c) && vap->iv_flags & IEEE80211_F_XR)
|
||||
- continue;
|
||||
+ ieee80211_scan_add_channels(ic, ss, vap->iv_des_mode);
|
||||
|
||||
- /* Dynamic channels are scanned in base mode */
|
||||
- if (!as->as_required_mode && !IEEE80211_IS_CHAN_ST(c))
|
||||
- continue;
|
||||
-
|
||||
- /* Use any 11g channel instead of 11b one. */
|
||||
- if (vap->iv_des_mode == IEEE80211_MODE_AUTO &&
|
||||
- IEEE80211_IS_CHAN_B(c) &&
|
||||
- find11gchannel(ic, i, c->ic_freq))
|
||||
- continue;
|
||||
-
|
||||
- /* Do not add channels already put into the scan list by the
|
||||
- * scan table - these have already been filtered by mode
|
||||
- * and for whether they are in the active channel list. */
|
||||
- if (checktable(staScanTable, c))
|
||||
- continue;
|
||||
-
|
||||
- /* Make sure the channel is active */
|
||||
- if ((c == NULL) || isclr(ic->ic_chan_active, c->ic_ieee))
|
||||
- continue;
|
||||
-
|
||||
- /* Don't overrun */
|
||||
- if (ss->ss_last >= IEEE80211_SCAN_MAX)
|
||||
- break;
|
||||
-
|
||||
- ss->ss_chans[ss->ss_last++] = c;
|
||||
- }
|
||||
ss->ss_next = 0;
|
||||
/* XXX tunables */
|
||||
ss->ss_mindwell = msecs_to_jiffies(200); /* 200ms */
|
||||
@@ -759,13 +538,6 @@
|
||||
if (IEEE80211_IS_CHAN_RADAR(c->chan))
|
||||
continue;
|
||||
|
||||
- /* Do not select 802.11a ST if mode is specified and is not
|
||||
- * 802.11a ST */
|
||||
- if (as->as_required_mode &&
|
||||
- IEEE80211_IS_CHAN_STURBO(c->chan) &&
|
||||
- (as->as_vap_desired_mode != IEEE80211_MODE_TURBO_STATIC_A))
|
||||
- continue;
|
||||
-
|
||||
/* Verify mode matches any fixed mode specified */
|
||||
if((c->chan->ic_flags & as->as_required_mode) !=
|
||||
as->as_required_mode)
|
||||
Index: madwifi-trunk-r3314/net80211/ieee80211_scan.c
|
||||
===================================================================
|
||||
--- madwifi-trunk-r3314.orig/net80211/ieee80211_scan.c 2008-06-01 03:41:58.000000000 +0200
|
||||
+++ madwifi-trunk-r3314/net80211/ieee80211_scan.c 2008-06-01 03:42:18.000000000 +0200
|
||||
@@ -958,6 +958,79 @@
|
||||
}
|
||||
}
|
||||
|
||||
+static const u_int chanflags[] = {
|
||||
+ 0, /* IEEE80211_MODE_AUTO */
|
||||
+ IEEE80211_CHAN_A, /* IEEE80211_MODE_11A */
|
||||
+ IEEE80211_CHAN_B, /* IEEE80211_MODE_11B */
|
||||
+ IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_11G */
|
||||
+ IEEE80211_CHAN_FHSS, /* IEEE80211_MODE_FH */
|
||||
+ IEEE80211_CHAN_A, /* IEEE80211_MODE_TURBO_A */ /* for turbo mode look for AP in normal channel */
|
||||
+ IEEE80211_CHAN_PUREG, /* IEEE80211_MODE_TURBO_G */
|
||||
+ IEEE80211_CHAN_ST, /* IEEE80211_MODE_TURBO_STATIC_A */
|
||||
+};
|
||||
+
|
||||
+static struct ieee80211_channel *
|
||||
+find11gchannel(struct ieee80211com *ic, int i, int freq)
|
||||
+{
|
||||
+ struct ieee80211_channel *c;
|
||||
+ int j;
|
||||
+
|
||||
+ /*
|
||||
+ * The normal ordering in the channel list is b channel
|
||||
+ * immediately followed by g so optimize the search for
|
||||
+ * this. We'll still do a full search just in case.
|
||||
+ */
|
||||
+ for (j = i+1; j < ic->ic_nchans; j++) {
|
||||
+ c = &ic->ic_channels[j];
|
||||
+ if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
|
||||
+ return c;
|
||||
+ }
|
||||
+ for (j = 0; j < i; j++) {
|
||||
+ c = &ic->ic_channels[j];
|
||||
+ if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
|
||||
+ return c;
|
||||
+ }
|
||||
+ return NULL;
|
||||
+}
|
||||
+
|
||||
+
|
||||
+void
|
||||
+ieee80211_scan_add_channels(struct ieee80211com *ic,
|
||||
+ struct ieee80211_scan_state *ss,
|
||||
+ enum ieee80211_phymode mode)
|
||||
+{
|
||||
+ struct ieee80211_channel *c, *cg;
|
||||
+ u_int modeflags;
|
||||
+ int i;
|
||||
+
|
||||
+ KASSERT(mode < ARRAY_SIZE(chanflags), ("Unexpected mode %u", mode));
|
||||
+ modeflags = chanflags[mode];
|
||||
+ for (i = 0; i < ic->ic_nchans; i++) {
|
||||
+ c = &ic->ic_channels[i];
|
||||
+ if (c == NULL || isclr(ic->ic_chan_active, c->ic_ieee))
|
||||
+ continue;
|
||||
+ if (c->ic_scanflags & IEEE80211_NOSCAN_SET)
|
||||
+ continue;
|
||||
+ if (modeflags &&
|
||||
+ ((c->ic_flags & IEEE80211_CHAN_ALLTURBO) !=
|
||||
+ (modeflags & IEEE80211_CHAN_ALLTURBO)))
|
||||
+ continue;
|
||||
+ if (mode == IEEE80211_MODE_AUTO) {
|
||||
+ /*
|
||||
+ * XXX special-case 11b/g channels so we select
|
||||
+ * the g channel if both are present.
|
||||
+ */
|
||||
+ if (IEEE80211_IS_CHAN_B(c) &&
|
||||
+ (cg = find11gchannel(ic, i, c->ic_freq)) != NULL)
|
||||
+ continue;
|
||||
+ }
|
||||
+ if (ss->ss_last >= IEEE80211_SCAN_MAX)
|
||||
+ break;
|
||||
+ ss->ss_chans[ss->ss_last++] = c;
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
+
|
||||
/*
|
||||
* Execute radar channel change. This is called when a radar/dfs
|
||||
* signal is detected. AP mode only. Return 1 on success, 0 on
|
||||
Index: madwifi-trunk-r3314/net80211/ieee80211_scan.h
|
||||
===================================================================
|
||||
--- madwifi-trunk-r3314.orig/net80211/ieee80211_scan.h 2008-06-01 03:41:58.000000000 +0200
|
||||
+++ madwifi-trunk-r3314/net80211/ieee80211_scan.h 2008-06-01 03:42:18.000000000 +0200
|
||||
@@ -219,4 +219,7 @@
|
||||
void ieee80211_scanner_unregister(enum ieee80211_opmode,
|
||||
const struct ieee80211_scanner *);
|
||||
void ieee80211_scanner_unregister_all(const struct ieee80211_scanner *);
|
||||
+void ieee80211_scan_add_channels(struct ieee80211com *ic,
|
||||
+ struct ieee80211_scan_state *ss,
|
||||
+ enum ieee80211_phymode mode);
|
||||
#endif /* _NET80211_IEEE80211_SCAN_H_ */
|
||||
Index: madwifi-trunk-r3314/net80211/ieee80211_wireless.c
|
||||
===================================================================
|
||||
--- madwifi-trunk-r3314.orig/net80211/ieee80211_wireless.c 2008-06-01 03:41:58.000000000 +0200
|
||||
+++ madwifi-trunk-r3314/net80211/ieee80211_wireless.c 2008-06-01 03:42:53.000000000 +0200
|
||||
@@ -3873,6 +3873,106 @@
|
||||
return ieee80211_ioctl_setmlme(dev, info, w, (char *)&mlme);
|
||||
}
|
||||
|
||||
+static inline void setflag(struct ieee80211_channel *c, int flag)
|
||||
+{
|
||||
+ if (flag)
|
||||
+ c->ic_scanflags |= IEEE80211_NOSCAN_SET;
|
||||
+ else
|
||||
+ c->ic_scanflags &= ~IEEE80211_NOSCAN_SET;
|
||||
+}
|
||||
+
|
||||
+static void setscanflag(struct ieee80211com *ic, int min, int max, int set)
|
||||
+{
|
||||
+ int i;
|
||||
+
|
||||
+ for (i = 0; i < ic->ic_nchans; i++) {
|
||||
+ struct ieee80211_channel *c = &ic->ic_channels[i];
|
||||
+
|
||||
+ if (min == -1) {
|
||||
+ if (!(c->ic_scanflags & IEEE80211_NOSCAN_DEFAULT))
|
||||
+ setflag(c, set);
|
||||
+ } else if ((c->ic_freq >= min) && (c->ic_freq <= max)) {
|
||||
+ setflag(c, set);
|
||||
+ }
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
+static int
|
||||
+ieee80211_ioctl_setscanlist(struct net_device *dev,
|
||||
+ struct iw_request_info *info,
|
||||
+ struct iw_point *data, char *extra)
|
||||
+{
|
||||
+ struct ieee80211vap *vap = dev->priv;
|
||||
+ struct ieee80211com *ic = vap->iv_ic;
|
||||
+ char *s, *next;
|
||||
+ int val = 1;
|
||||
+
|
||||
+ if (data->length <= 0)
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ s = kmalloc(data->length + 1, GFP_KERNEL);
|
||||
+ if (!s)
|
||||
+ return -ENOMEM;
|
||||
+
|
||||
+ memset(s, 0, data->length + 1);
|
||||
+ if (copy_from_user(s, data->pointer, data->length))
|
||||
+ return -EFAULT;
|
||||
+
|
||||
+ s[data->length - 1] = '\0'; /* ensure null termination */
|
||||
+
|
||||
+ switch(*s) {
|
||||
+ case '-':
|
||||
+ val = 1;
|
||||
+ break;
|
||||
+ case '+':
|
||||
+ val = 0;
|
||||
+ break;
|
||||
+ default:
|
||||
+ goto error;
|
||||
+ }
|
||||
+ s++;
|
||||
+ next = s;
|
||||
+ do {
|
||||
+ next = strchr(s, ',');
|
||||
+ if (next) {
|
||||
+ *next = 0;
|
||||
+ next++;
|
||||
+ }
|
||||
+ if (!strcmp(s, "ALL")) {
|
||||
+ setscanflag(ic, 0, 10000, val);
|
||||
+ } else if (!strcmp(s, "REG")) {
|
||||
+ setscanflag(ic, -1, -1, val);
|
||||
+ } else {
|
||||
+ int min, max;
|
||||
+ char *n, *end = NULL;
|
||||
+
|
||||
+ n = strchr(s, '-');
|
||||
+ if (n) {
|
||||
+ *n = 0;
|
||||
+ n++;
|
||||
+ }
|
||||
+ min = simple_strtoul(s, &end, 10);
|
||||
+ if (end && *end)
|
||||
+ goto error;
|
||||
+ if (n) {
|
||||
+ max = simple_strtoul(n, &end, 10);
|
||||
+ if (end && *end)
|
||||
+ goto error;
|
||||
+ } else {
|
||||
+ max = min;
|
||||
+ }
|
||||
+ setscanflag(ic, min, max, val);
|
||||
+ }
|
||||
+ s = next;
|
||||
+ } while (next);
|
||||
+ return 0;
|
||||
+
|
||||
+error:
|
||||
+ if (s)
|
||||
+ kfree(s);
|
||||
+ return -EINVAL;
|
||||
+}
|
||||
+
|
||||
static int
|
||||
ieee80211_ioctl_addmac(struct net_device *dev, struct iw_request_info *info,
|
||||
void *w, char *extra)
|
||||
@@ -5656,6 +5756,8 @@
|
||||
IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "minrate"},
|
||||
{IEEE80211_PARAM_MINRATE,
|
||||
0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_minrate"},
|
||||
+ { IEEE80211_IOCTL_SETSCANLIST,
|
||||
+ IW_PRIV_TYPE_CHAR | 255, 0, "setscanlist"},
|
||||
|
||||
#ifdef ATH_REVERSE_ENGINEERING
|
||||
/*
|
||||
@@ -5753,6 +5855,7 @@
|
||||
set_priv(IEEE80211_IOCTL_WDSADDMAC, ieee80211_ioctl_wdsmac),
|
||||
set_priv(IEEE80211_IOCTL_WDSDELMAC, ieee80211_ioctl_wdsdelmac),
|
||||
set_priv(IEEE80211_IOCTL_KICKMAC, ieee80211_ioctl_kickmac),
|
||||
+ set_priv(IEEE80211_IOCTL_SETSCANLIST, ieee80211_ioctl_setscanlist),
|
||||
#ifdef ATH_REVERSE_ENGINEERING
|
||||
set_priv(IEEE80211_IOCTL_READREG, ieee80211_ioctl_readreg),
|
||||
set_priv(IEEE80211_IOCTL_WRITEREG, ieee80211_ioctl_writereg),
|
||||
Loading…
Reference in New Issue
Block a user