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[PATCH] softmac: unified capabilities computation 

This patch moves the capabilities field computation to a function for clarity
and adds some previously unimplemented bits.

Signed off by Joseph Jezak <josejx@gentoo.org>
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Acked-By: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Joseph Jezak 2006-06-01 17:12:49 +01:00 коммит произвёл John W. Linville
Родитель 6ae15df16e
Коммит c4b3d1bb32
1 изменённых файлов: 53 добавлений и 32 удалений
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85
net/ieee80211/softmac/ieee80211softmac_io.c
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@ -149,6 +149,56 @@ ieee80211softmac_hdr_3addr(struct ieee80211softmac_device *mac,
* shouldn't the sequence number be in ieee80211? */
}
static u16
ieee80211softmac_capabilities(struct ieee80211softmac_device *mac,
struct ieee80211softmac_network *net)
{
u16 capability = 0;
/* ESS and IBSS bits are set according to the current mode */
switch (mac->ieee->iw_mode) {
case IW_MODE_INFRA:
capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
break;
case IW_MODE_ADHOC:
capability = cpu_to_le16(WLAN_CAPABILITY_IBSS);
break;
case IW_MODE_AUTO:
capability = net->capabilities &
(WLAN_CAPABILITY_ESS|WLAN_CAPABILITY_IBSS);
break;
default:
/* bleh. we don't ever go to these modes */
printk(KERN_ERR PFX "invalid iw_mode!\n");
break;
}
/* CF Pollable / CF Poll Request */
/* Needs to be implemented, for now, the 0's == not supported */
/* Privacy Bit */
capability |= mac->ieee->sec.level ?
cpu_to_le16(WLAN_CAPABILITY_PRIVACY) : 0;
/* Short Preamble */
/* Always supported: we probably won't ever be powering devices which
* dont support this... */
capability |= WLAN_CAPABILITY_SHORT_PREAMBLE;
/* PBCC */
/* Not widely used */
/* Channel Agility */
/* Not widely used */
/* Short Slot */
/* Will be implemented later */
/* DSSS-OFDM */
/* Not widely used */
return capability;
}
/*****************************************************************************
* Create Management packets
@ -179,27 +229,6 @@ ieee80211softmac_assoc_req(struct ieee80211_assoc_request **pkt,
return 0;
ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_ASSOC_REQ, net->bssid, net->bssid);
/* Fill in capability Info */
switch (mac->ieee->iw_mode) {
case IW_MODE_INFRA:
(*pkt)->capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
break;
case IW_MODE_ADHOC:
(*pkt)->capability = cpu_to_le16(WLAN_CAPABILITY_IBSS);
break;
case IW_MODE_AUTO:
(*pkt)->capability = net->capabilities & (WLAN_CAPABILITY_ESS|WLAN_CAPABILITY_IBSS);
break;
default:
/* bleh. we don't ever go to these modes */
printk(KERN_ERR PFX "invalid iw_mode!\n");
break;
}
/* Need to add this
(*pkt)->capability |= mac->ieee->short_slot ?
cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME) : 0;
*/
(*pkt)->capability |= mac->ieee->sec.level ? cpu_to_le16(WLAN_CAPABILITY_PRIVACY) : 0;
/* Fill in Listen Interval (?) */
(*pkt)->listen_interval = cpu_to_le16(10);
@ -239,17 +268,9 @@ ieee80211softmac_reassoc_req(struct ieee80211_reassoc_request **pkt,
return 0;
ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_REASSOC_REQ, net->bssid, net->bssid);
/* Fill in capability Info */
(*pkt)->capability = mac->ieee->iw_mode == IW_MODE_MASTER ?
cpu_to_le16(WLAN_CAPABILITY_ESS) :
cpu_to_le16(WLAN_CAPABILITY_IBSS);
/*
(*pkt)->capability |= mac->ieee->short_slot ?
cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME) : 0;
*/
(*pkt)->capability |= mac->ieee->sec.level ?
cpu_to_le16(WLAN_CAPABILITY_PRIVACY) : 0;
/* Fill in the capabilities */
(*pkt)->capability = ieee80211softmac_capabilities(mac, net);
/* Fill in Listen Interval (?) */
(*pkt)->listen_interval = cpu_to_le16(10);
/* Fill in the current AP MAC */