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madwifi: don't crash if the static rate is not in a per-node rateset
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12713 3c298f89-4303-0410-b956-a3cf2f4a3e73
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package/madwifi/patches/379-invalid_rate_fix.patch
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200
package/madwifi/patches/379-invalid_rate_fix.patch
Normal file
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@ -0,0 +1,200 @@
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--- a/ath_rate/minstrel/minstrel.c
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+++ b/ath_rate/minstrel/minstrel.c
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@@ -111,27 +111,13 @@
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_rate.h>
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+#include "if_ath_debug.h"
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#include "if_athvar.h"
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#include "if_ath_hal.h"
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#include "ah_desc.h"
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#include "minstrel.h"
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-#ifdef AR_DEBUG
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-#define MINSTREL_DEBUG
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-#endif
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-#ifdef MINSTREL_DEBUG
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-enum {
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- ATH_DEBUG_RATE = 0x00000010 /* rate control */
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-};
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-#define DPRINTF(sc, _fmt, ...) do { \
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- if (sc->sc_debug & ATH_DEBUG_RATE) \
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- printk(_fmt, __VA_ARGS__); \
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-} while (0)
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-#else
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-#define DPRINTF(sc, _fmt, ...)
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-#endif
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-
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#define ONE_SECOND (1000 * 1000) /* 1 second, or 1000 milliseconds; eternity, in other words */
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#include "release.h"
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@@ -689,17 +675,17 @@
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* the node. We know the rate is there because the
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* rate set is checked when the station associates. */
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/* NB: the rate set is assumed sorted */
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- for (; (srate >= 0) && (ni->ni_rates.rs_rates[srate] & IEEE80211_RATE_VAL) != vap->iv_fixed_rate; srate--);
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-
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- KASSERT(srate >= 0,
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- ("fixed rate %d not in rate set", vap->iv_fixed_rate));
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+ for (; (srate > 0) && (ni->ni_rates.rs_rates[srate] & IEEE80211_RATE_VAL) != vap->iv_fixed_rate; srate--);
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sn->static_rate_ndx = srate;
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ni->ni_txrate = srate;
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- DPRINTF(sc, "%s: %s " MAC_FMT " fixed rate %d%sMbps\n",
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- dev_info, __func__, MAC_ADDR(ni->ni_macaddr),
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- sn->rates[srate].rate / 2,
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- (sn->rates[srate].rate % 2) ? ".5 " : " ");
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+ if ((ni->ni_rates.rs_rates[srate] & IEEE80211_RATE_VAL) != vap->iv_fixed_rate)
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+ EPRINTF(sc, "Invalid static rate, falling back to basic rate\n");
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+ else
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+ DPRINTF(sc, "%s: %s " MAC_FMT " fixed rate %d%sMbps\n",
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+ dev_info, __func__, MAC_ADDR(ni->ni_macaddr),
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+ sn->rates[srate].rate / 2,
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+ (sn->rates[srate].rate % 2) ? ".5 " : " ");
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return;
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}
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--- a/ath_rate/amrr/amrr.c
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+++ b/ath_rate/amrr/amrr.c
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@@ -64,24 +64,13 @@
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_rate.h>
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+#include "if_ath_debug.h"
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#include "if_athvar.h"
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#include "if_ath_hal.h"
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#include "ah_desc.h"
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#include "amrr.h"
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-#ifdef AR_DEBUG
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-#define AMRR_DEBUG
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-#endif
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-#ifdef AMRR_DEBUG
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-#define DPRINTF(sc, _fmt, ...) do { \
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- if (sc->sc_debug & 0x10) \
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- printk(_fmt, __VA_ARGS__); \
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-} while (0)
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-#else
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-#define DPRINTF(sc, _fmt, ...)
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-#endif
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-
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static int ath_rateinterval = 1000; /* rate ctl interval (ms) */
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static int ath_rate_max_success_threshold = 10;
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static int ath_rate_min_success_threshold = 1;
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@@ -297,9 +286,9 @@
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* rate set is checked when the station associates.
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*/
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srate = ni->ni_rates.rs_nrates - 1;
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- for (; srate >= 0 && RATE(srate) != vap->iv_fixed_rate; srate--);
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- KASSERT(srate >= 0,
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- ("fixed rate %d not in rate set", vap->iv_fixed_rate));
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+ for (; srate > 0 && RATE(srate) != vap->iv_fixed_rate; srate--);
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+ if (RATE(srate) != vap->iv_fixed_rate)
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+ EPRINTF(sc, "Invalid static rate, falling back to basic rate\n");
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}
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ath_rate_update(sc, ni, srate);
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#undef RATE
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--- a/ath_rate/onoe/onoe.c
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+++ b/ath_rate/onoe/onoe.c
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@@ -60,27 +60,13 @@
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_rate.h>
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+#include "if_ath_debug.h"
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#include "if_athvar.h"
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#include "if_ath_hal.h"
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#include "ah_desc.h"
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#include "onoe.h"
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-#ifdef AR_DEBUG
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-#define ONOE_DEBUG
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-#endif
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-#ifdef ONOE_DEBUG
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-enum {
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- ATH_DEBUG_RATE = 0x00000010, /* rate control */
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-};
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-#define DPRINTF(sc, _fmt, ...) do { \
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- if (sc->sc_debug & ATH_DEBUG_RATE) \
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- printk(_fmt, __VA_ARGS__); \
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-} while (0)
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-#else
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-#define DPRINTF(sc, _fmt, ...)
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-#endif
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-
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/*
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* Default parameters for the rate control algorithm. These are
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* all tunable with sysctls. The rate controller runs periodically
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@@ -283,9 +269,9 @@
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*/
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/* NB: the rate set is assumed sorted */
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srate = ni->ni_rates.rs_nrates - 1;
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- for (; srate >= 0 && RATE(srate) != vap->iv_fixed_rate; srate--);
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- KASSERT(srate >= 0,
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- ("fixed rate %d not in rate set", vap->iv_fixed_rate));
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+ for (; srate > 0 && RATE(srate) != vap->iv_fixed_rate; srate--);
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+ if (RATE(srate) != vap->iv_fixed_rate)
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+ EPRINTF(sc, "Invalid static rate, falling back to basic rate\n");
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}
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ath_rate_update(sc, ni, srate);
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#undef RATE
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--- a/ath_rate/sample/sample.c
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+++ b/ath_rate/sample/sample.c
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@@ -62,30 +62,13 @@
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_rate.h>
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+#include "if_ath_debug.h"
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#include "if_athvar.h"
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#include "if_ath_hal.h"
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#include "ah_desc.h"
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#include "sample.h"
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-#ifdef AR_DEBUG
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-#define SAMPLE_DEBUG
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-#endif
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-#ifdef SAMPLE_DEBUG
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-enum {
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- ATH_DEBUG_RATE = 0x00000010, /* rate control */
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- ATH_DEBUG_ANY = 0xffffffff
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-};
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-#define DPRINTF(sc, m, fmt, ...) do { \
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- if (sc->sc_debug & (m)) \
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- printk(fmt, __VA_ARGS__); \
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-} while (0)
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-#else
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-#define DPRINTF(sc, m, fmt, ...) do { \
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- (void) sc; \
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-} while (0)
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-#endif
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-
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/*
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* This file is an implementation of the SampleRate algorithm
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* in "Bit-rate Selection in Wireless Networks"
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@@ -886,15 +869,16 @@
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if ((ni->ni_rates.rs_rates[x] & IEEE80211_RATE_VAL) == vap->iv_fixed_rate)
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srate = x;
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- KASSERT(((ni->ni_rates.rs_rates[srate] & IEEE80211_RATE_VAL) == vap->iv_fixed_rate),
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- ("fixed rate %u not in rate set", vap->iv_fixed_rate));
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-
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sn->static_rate_ndx = srate;
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ni->ni_txrate = srate;
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- DPRINTF(sc, ATH_DEBUG_RATE, "%s: %s " MAC_FMT " fixed rate %u%sMbps\n",
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- dev_info, __func__, MAC_ADDR(ni->ni_macaddr),
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- sn->rates[srate].rate / 2,
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- (sn->rates[srate].rate % 0x1) ? ".5" : " ");
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+
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+ if ((ni->ni_rates.rs_rates[srate] & IEEE80211_RATE_VAL) != vap->iv_fixed_rate)
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+ EPRINTF(sc, "Invalid static rate, falling back to basic rate\n");
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+ else
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+ DPRINTF(sc, ATH_DEBUG_RATE, "%s: %s " MAC_FMT " fixed rate %u%sMbps\n",
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+ dev_info, __func__, MAC_ADDR(ni->ni_macaddr),
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+ sn->rates[srate].rate / 2,
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+ (sn->rates[srate].rate % 0x1) ? ".5" : " ");
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return;
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}
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