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When crafting a media setting w/ an auto (non-fixed) rate mask out the

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turbo option in addition to the mode bits; otherwise if the current
channel is a turbo mode channel we'll form an invalid media setting
and the ifmedia_set operation in vap_attach will panic.

While here use C99-style initialization for an array indexed by mode;
this makes it consistent w/ other usage and avoids breakage if we
should ever change the set of modes.
This commit is contained in:
Sam Leffler 2009-02-03 22:32:26 +00:00
parent 0928cdfc3f
commit c3f10abd7e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=188106
1 changed files with 14 additions and 12 deletions
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26
sys/net80211/ieee80211.c
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@ -472,7 +472,8 @@ ieee80211_vap_attach(struct ieee80211vap *vap,
vap->iv_opmode == IEEE80211_M_STA, media_change, media_stat);
ieee80211_media_status(ifp, &imr);
/* NB: strip explicit mode; we're actually in autoselect */
ifmedia_set(&vap->iv_media, imr.ifm_active &~ IFM_MMASK);
ifmedia_set(&vap->iv_media,
imr.ifm_active &~ (IFM_MMASK | IFM_IEEE80211_TURBO));
if (maxrate)
ifp->if_baudrate = IF_Mbps(maxrate);
@ -857,16 +858,16 @@ addmedia(struct ifmedia *media, int caps, int addsta, int mode, int mword)
ifmedia_add(media, \
IFM_MAKEWORD(IFM_IEEE80211, (_s), (_o), 0), 0, NULL)
static const u_int mopts[IEEE80211_MODE_MAX] = {
IFM_AUTO,
IFM_IEEE80211_11A,
IFM_IEEE80211_11B,
IFM_IEEE80211_11G,
IFM_IEEE80211_FH,
IFM_IEEE80211_11A | IFM_IEEE80211_TURBO,
IFM_IEEE80211_11G | IFM_IEEE80211_TURBO,
IFM_IEEE80211_11A | IFM_IEEE80211_TURBO,
IFM_IEEE80211_11NA,
IFM_IEEE80211_11NG,
[IEEE80211_MODE_AUTO] = IFM_AUTO,
[IEEE80211_MODE_11A] = IFM_IEEE80211_11A,
[IEEE80211_MODE_11B] = IFM_IEEE80211_11B,
[IEEE80211_MODE_11G] = IFM_IEEE80211_11G,
[IEEE80211_MODE_FH] = IFM_IEEE80211_FH,
[IEEE80211_MODE_TURBO_A] = IFM_IEEE80211_11A|IFM_IEEE80211_TURBO,
[IEEE80211_MODE_TURBO_G] = IFM_IEEE80211_11G|IFM_IEEE80211_TURBO,
[IEEE80211_MODE_STURBO_A] = IFM_IEEE80211_11A|IFM_IEEE80211_TURBO,
[IEEE80211_MODE_11NA] = IFM_IEEE80211_11NA,
[IEEE80211_MODE_11NG] = IFM_IEEE80211_11NG,
};
u_int mopt;
@ -996,7 +997,8 @@ ieee80211_media_init(struct ieee80211com *ic)
ieee80211com_media_change, ieee80211com_media_status);
/* NB: strip explicit mode; we're actually in autoselect */
ifmedia_set(&ic->ic_media,
media_status(ic->ic_opmode, ic->ic_curchan) &~ IFM_MMASK);
media_status(ic->ic_opmode, ic->ic_curchan) &~
(IFM_MMASK | IFM_IEEE80211_TURBO));
if (maxrate)
ifp->if_baudrate = IF_Mbps(maxrate);