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mac80211: Implement commit in wireless extensions

PATCH In review Alina Friedrichsen 3 participants 3 messages Feb 26, 2009 – Feb 27, 2009 mac80211

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PATCH v2 1/1 mac80211: Implement commit in wireless extensions

This implements commit in wireless extensions for completeness and mayb= e it could be useful for debugging to initiate a new rejoining process = without changing the config.

I not so familiar with nl80211 at the moment, so I want add it to nl802= 11 in a second patch.

---
Version 2: Fix bad header.

Hope we can find a compromise in the conception.

net/mac80211/ieee80211_i.h +0 -0
index ecbc8e0..7f00c70 100644
@@ -920,6 +920,7 @@ static inline int ieee80211_bssid_match(const u8 *r=

addr, const u8 *addr)
=20
int ieee80211_hw_config(struct ieee80211_local *local, u32 changed); int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 chang=
ed);
+void ieee80211_commit(struct ieee80211_sub_if_data *sdata);
void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sd=
ata,
u32 changed);

net/mac80211/main.c +0 -0
index f38db4d..1b2d598 100644
@@ -294,6 +294,20 @@ int ieee80211_hw_config(struct ieee80211_local *lo=

cal, u32 changed)
return ret;
}
=20
+void ieee80211_commit(struct ieee80211_sub_if_data *sdata) +{
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_ADHOC:
+ ieee80211_ibss_commit(sdata);
+ break;
+ case NL80211_IFTYPE_STATION:
+ ieee80211_sta_commit(sdata);
+ break;
+ default:
+ break;
+ }
+}
+
void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sd=
ata,
u32 changed)
{

net/mac80211/wext.c +0 -0
index f6924fc..1ac0516 100644
@@ -121,6 +121,15 @@ static int ieee80211_set_encryption(struct ieee802=

11_sub_if_data *sdata, u8 *sta
return err;
}
=20
+static int ieee80211_ioctl_commit(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra)
+{
+ struct ieee80211_sub_if_data *sdata =3D IEEE80211_DEV_TO_SUB_IF(dev);
+ ieee80211_commit(sdata);
+ return 0;
+}
+
static int ieee80211_ioctl_siwgenie(struct net_device *dev,
struct iw_request_info *info, struct iw_point *data, char *extra)
@@ -1035,7 +1044,7 @@ static int ieee80211_ioctl_siwencodeext(struct ne= t_device *dev,
=20
static const iw_handler ieee80211_handler[] =3D
{
- (iw_handler) NULL, /* SIOCSIWCOMMIT */
+ (iw_handler) ieee80211_ioctl_commit, /* SIOCSIWCOMMIT */
(iw_handler) cfg80211_wext_giwname, /* SIOCGIWNAME */
(iw_handler) NULL, /* SIOCSIWNWID */
(iw_handler) NULL, /* SIOCGIWNWID */

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#1 lore raw
Quoted 9 lines · On Friday 27 February 2009 00:21:49 Alina Friedrichsen wrote:

This implements commit in wireless extensions for completeness and maybe it could be useful for debugging to initiate a new rejoining process without changing the config.

I not so familiar with nl80211 at the moment, so I want add it to nl80211 in a second patch.

---
Version 2: Fix bad header.

Hope we can find a compromise in the conception.

The WEXT commit function is one of the worst WEXT functions.
And this patch even abuses it even more. Commit is meant to commit _pending_ changes. It is _not_ meant to re-apply existing changes.
But as we never have pending changes in mac80211, the commit function doesn't make any sense for mac80211.

I vote for dropping this patch entirely, as it just adds an abusive implementation of a crap API.

If you want to re-apply some settings, please do this from userspace entirely. You don't need kernel support for this.

Quoted 67 lines
net/mac80211/ieee80211_i.h +1 -0
index ecbc8e0..7f00c70 100644
@@ -920,6 +920,7 @@ static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
 
 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
 int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed);
+void ieee80211_commit(struct ieee80211_sub_if_data *sdata);
 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 				      u32 changed);
net/mac80211/main.c +14 -0
index f38db4d..1b2d598 100644
@@ -294,6 +294,20 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 	return ret;
 }
 
+void ieee80211_commit(struct ieee80211_sub_if_data *sdata)
+{
+	switch (sdata->vif.type) {
+	case NL80211_IFTYPE_ADHOC:
+		ieee80211_ibss_commit(sdata);
+		break;
+	case NL80211_IFTYPE_STATION:
+		ieee80211_sta_commit(sdata);
+		break;
+	default:
+		break;
+	}
+}
+
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 				      u32 changed)
 {
net/mac80211/wext.c +10 -1
index f6924fc..1ac0516 100644
@@ -121,6 +121,15 @@ static int ieee80211_set_encryption(struct ieee80211_sub_if_data *sdata, u8 *sta
 	return err;
 }
 
+static int ieee80211_ioctl_commit(struct net_device *dev,
+				  struct iw_request_info *info,
+				  struct iw_point *data, char *extra)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	ieee80211_commit(sdata);
+	return 0;
+}
+
 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
 				    struct iw_request_info *info,
 				    struct iw_point *data, char *extra)
@@ -1035,7 +1044,7 @@ static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
 
 static const iw_handler ieee80211_handler[] =
 {
-	(iw_handler) NULL,				/* SIOCSIWCOMMIT */
+	(iw_handler) ieee80211_ioctl_commit,		/* SIOCSIWCOMMIT */
 	(iw_handler) cfg80211_wext_giwname,		/* SIOCGIWNAME */
 	(iw_handler) NULL,				/* SIOCSIWNWID */
 	(iw_handler) NULL,				/* SIOCGIWNWID */
Signature · 1 line
Greetings, Michael.
maintainer
#2 lore raw
In reply to Alina Friedrichsen
Quoted 4 lines · Alina Friedrichsen

This implements commit in wireless extensions for completeness and maybe it could be useful for debugging to initiate a new rejoining process without changing the config.

Quoted 8 lines

I not so familiar with nl80211 at the moment, so I want add it to nl80211 in a second patch.

---
Version 2: Fix bad header.

Hope we can find a compromise in the conception.

I stand by my opinion that I don't want to have this in the code since there's no real reason to have it.

johannes