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openwrt/package/madwifi/patches/379-invalid_rate_fix.patch

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madwifi: don't crash if the static rate is not in a per-node rateset SVN-Revision: 12713
2008-09-25 23:55:47 +00:00
--- a/ath_rate/minstrel/minstrel.c
+++ b/ath_rate/minstrel/minstrel.c
@@ -111,27 +111,13 @@
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_rate.h>
+#include "if_ath_debug.h"
#include "if_athvar.h"
#include "if_ath_hal.h"
#include "ah_desc.h"
#include "minstrel.h"
-#ifdef AR_DEBUG
-#define MINSTREL_DEBUG
-#endif
-#ifdef MINSTREL_DEBUG
-enum {
- ATH_DEBUG_RATE = 0x00000010 /* rate control */
-};
-#define DPRINTF(sc, _fmt, ...) do { \
- if (sc->sc_debug & ATH_DEBUG_RATE) \
- printk(_fmt, __VA_ARGS__); \
-} while (0)
-#else
-#define DPRINTF(sc, _fmt, ...)
-#endif
-
#define ONE_SECOND (1000 * 1000) /* 1 second, or 1000 milliseconds; eternity, in other words */
#include "release.h"
@@ -689,17 +675,17 @@
* the node. We know the rate is there because the
* rate set is checked when the station associates. */
/* NB: the rate set is assumed sorted */
- for (; (srate >= 0) && (ni->ni_rates.rs_rates[srate] & IEEE80211_RATE_VAL) != vap->iv_fixed_rate; srate--);
-
- KASSERT(srate >= 0,
- ("fixed rate %d not in rate set", vap->iv_fixed_rate));
+ for (; (srate > 0) && (ni->ni_rates.rs_rates[srate] & IEEE80211_RATE_VAL) != vap->iv_fixed_rate; srate--);
sn->static_rate_ndx = srate;
ni->ni_txrate = srate;
- DPRINTF(sc, "%s: %s " MAC_FMT " fixed rate %d%sMbps\n",
- dev_info, __func__, MAC_ADDR(ni->ni_macaddr),
- sn->rates[srate].rate / 2,
- (sn->rates[srate].rate % 2) ? ".5 " : " ");
+ if ((ni->ni_rates.rs_rates[srate] & IEEE80211_RATE_VAL) != vap->iv_fixed_rate)
+ EPRINTF(sc, "Invalid static rate, falling back to basic rate\n");
+ else
+ DPRINTF(sc, "%s: %s " MAC_FMT " fixed rate %d%sMbps\n",
+ dev_info, __func__, MAC_ADDR(ni->ni_macaddr),
+ sn->rates[srate].rate / 2,
+ (sn->rates[srate].rate % 2) ? ".5 " : " ");
return;
}
--- a/ath_rate/amrr/amrr.c
+++ b/ath_rate/amrr/amrr.c
@@ -64,24 +64,13 @@
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_rate.h>
+#include "if_ath_debug.h"
#include "if_athvar.h"
#include "if_ath_hal.h"
#include "ah_desc.h"
#include "amrr.h"
-#ifdef AR_DEBUG
-#define AMRR_DEBUG
-#endif
-#ifdef AMRR_DEBUG
-#define DPRINTF(sc, _fmt, ...) do { \
- if (sc->sc_debug & 0x10) \
- printk(_fmt, __VA_ARGS__); \
-} while (0)
-#else
-#define DPRINTF(sc, _fmt, ...)
-#endif
-
static int ath_rateinterval = 1000; /* rate ctl interval (ms) */
static int ath_rate_max_success_threshold = 10;
static int ath_rate_min_success_threshold = 1;
@@ -297,9 +286,9 @@
* rate set is checked when the station associates.
*/
srate = ni->ni_rates.rs_nrates - 1;
- for (; srate >= 0 && RATE(srate) != vap->iv_fixed_rate; srate--);
- KASSERT(srate >= 0,
- ("fixed rate %d not in rate set", vap->iv_fixed_rate));
+ for (; srate > 0 && RATE(srate) != vap->iv_fixed_rate; srate--);
+ if (RATE(srate) != vap->iv_fixed_rate)
+ EPRINTF(sc, "Invalid static rate, falling back to basic rate\n");
}
ath_rate_update(sc, ni, srate);
#undef RATE
--- a/ath_rate/onoe/onoe.c
+++ b/ath_rate/onoe/onoe.c
@@ -60,27 +60,13 @@
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_rate.h>
+#include "if_ath_debug.h"
#include "if_athvar.h"
#include "if_ath_hal.h"
#include "ah_desc.h"
#include "onoe.h"
-#ifdef AR_DEBUG
-#define ONOE_DEBUG
-#endif
-#ifdef ONOE_DEBUG
-enum {
- ATH_DEBUG_RATE = 0x00000010, /* rate control */
-};
-#define DPRINTF(sc, _fmt, ...) do { \
- if (sc->sc_debug & ATH_DEBUG_RATE) \
- printk(_fmt, __VA_ARGS__); \
-} while (0)
-#else
-#define DPRINTF(sc, _fmt, ...)
-#endif
-
/*
* Default parameters for the rate control algorithm. These are
* all tunable with sysctls. The rate controller runs periodically
@@ -283,9 +269,9 @@
*/
/* NB: the rate set is assumed sorted */
srate = ni->ni_rates.rs_nrates - 1;
- for (; srate >= 0 && RATE(srate) != vap->iv_fixed_rate; srate--);
- KASSERT(srate >= 0,
- ("fixed rate %d not in rate set", vap->iv_fixed_rate));
+ for (; srate > 0 && RATE(srate) != vap->iv_fixed_rate; srate--);
+ if (RATE(srate) != vap->iv_fixed_rate)
+ EPRINTF(sc, "Invalid static rate, falling back to basic rate\n");
}
ath_rate_update(sc, ni, srate);
#undef RATE
--- a/ath_rate/sample/sample.c
+++ b/ath_rate/sample/sample.c
@@ -62,30 +62,13 @@
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_rate.h>
+#include "if_ath_debug.h"
#include "if_athvar.h"
#include "if_ath_hal.h"
#include "ah_desc.h"
#include "sample.h"
-#ifdef AR_DEBUG
-#define SAMPLE_DEBUG
-#endif
-#ifdef SAMPLE_DEBUG
-enum {
- ATH_DEBUG_RATE = 0x00000010, /* rate control */
- ATH_DEBUG_ANY = 0xffffffff
-};
-#define DPRINTF(sc, m, fmt, ...) do { \
- if (sc->sc_debug & (m)) \
- printk(fmt, __VA_ARGS__); \
-} while (0)
-#else
-#define DPRINTF(sc, m, fmt, ...) do { \
- (void) sc; \
-} while (0)
-#endif
-
/*
* This file is an implementation of the SampleRate algorithm
* in "Bit-rate Selection in Wireless Networks"
@@ -886,15 +869,16 @@
if ((ni->ni_rates.rs_rates[x] & IEEE80211_RATE_VAL) == vap->iv_fixed_rate)
srate = x;
- KASSERT(((ni->ni_rates.rs_rates[srate] & IEEE80211_RATE_VAL) == vap->iv_fixed_rate),
- ("fixed rate %u not in rate set", vap->iv_fixed_rate));
-
sn->static_rate_ndx = srate;
ni->ni_txrate = srate;
- DPRINTF(sc, ATH_DEBUG_RATE, "%s: %s " MAC_FMT " fixed rate %u%sMbps\n",
- dev_info, __func__, MAC_ADDR(ni->ni_macaddr),
- sn->rates[srate].rate / 2,
- (sn->rates[srate].rate % 0x1) ? ".5" : " ");
+
+ if ((ni->ni_rates.rs_rates[srate] & IEEE80211_RATE_VAL) != vap->iv_fixed_rate)
+ EPRINTF(sc, "Invalid static rate, falling back to basic rate\n");
+ else
+ DPRINTF(sc, ATH_DEBUG_RATE, "%s: %s " MAC_FMT " fixed rate %u%sMbps\n",
+ dev_info, __func__, MAC_ADDR(ni->ni_macaddr),
+ sn->rates[srate].rate / 2,
+ (sn->rates[srate].rate % 0x1) ? ".5" : " ");
return;
}