[PATCH] drivers/net/wireless: correct reported ssid lengths

ESSIDs can technically include NULL characters.  Drivers should not be
adjusting the length of the ESSID before reporting it in their
SIOCGIWESSID handlers.  Breaks stuff like wpa_supplicant.  Note that ipw
drivers, which seem to currently be the "most correct", don't have this
problem.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

5 files changed, 6 insertions, 6 deletions

diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index ee866fd6957..65057348838 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -5783,7 +5783,7 @@ static int airo_get_essid(struct net_device *dev,
 	/* If none, we may want to get the one that was set */
 
 	/* Push it out ! */
-	dwrq->length = status_rid.SSIDlen + 1;
+	dwrq->length = status_rid.SSIDlen;
 	dwrq->flags = 1; /* active */
 
 	return 0;
diff --git a/drivers/net/wireless/atmel.c b/drivers/net/wireless/atmel.c
index f0ccfef6644..98a76f10a0f 100644
--- a/drivers/net/wireless/atmel.c
+++ b/drivers/net/wireless/atmel.c
@@ -1718,11 +1718,11 @@ static int atmel_get_essid(struct net_device *dev,
 	if (priv->new_SSID_size != 0) {
 		memcpy(extra, priv->new_SSID, priv->new_SSID_size);
 		extra[priv->new_SSID_size] = '\0';
-		dwrq->length = priv->new_SSID_size + 1;
+		dwrq->length = priv->new_SSID_size;
 	} else {
 		memcpy(extra, priv->SSID, priv->SSID_size);
 		extra[priv->SSID_size] = '\0';
-		dwrq->length = priv->SSID_size + 1;
+		dwrq->length = priv->SSID_size;
 	}
 
 	dwrq->flags = !priv->connect_to_any_BSS; /* active */
diff --git a/drivers/net/wireless/prism54/isl_ioctl.c b/drivers/net/wireless/prism54/isl_ioctl.c
index 135a156db25..c5cd61c7f92 100644
--- a/drivers/net/wireless/prism54/isl_ioctl.c
+++ b/drivers/net/wireless/prism54/isl_ioctl.c
@@ -748,7 +748,7 @@ prism54_get_essid(struct net_device *ndev, struct iw_request_info *info,
 	if (essid->length) {
 		dwrq->flags = 1;	/* set ESSID to ON for Wireless Extensions */
 		/* if it is to big, trunk it */
-		dwrq->length = min(IW_ESSID_MAX_SIZE, essid->length + 1);
+		dwrq->length = min(IW_ESSID_MAX_SIZE, essid->length);
 	} else {
 		dwrq->flags = 0;
 		dwrq->length = 0;
diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
index 319180ca7e7..7880d8c31aa 100644
--- a/drivers/net/wireless/ray_cs.c
+++ b/drivers/net/wireless/ray_cs.c
@@ -1256,7 +1256,7 @@ static int ray_get_essid(struct net_device *dev,
 	extra[IW_ESSID_MAX_SIZE] = '\0';
 
 	/* Push it out ! */
-	dwrq->length = strlen(extra) + 1;
+	dwrq->length = strlen(extra);
 	dwrq->flags = 1; /* active */
 
 	return 0;
diff --git a/drivers/net/wireless/wavelan_cs.c b/drivers/net/wireless/wavelan_cs.c
index 7e2039f52c4..cf373625fc7 100644
--- a/drivers/net/wireless/wavelan_cs.c
+++ b/drivers/net/wireless/wavelan_cs.c
@@ -2280,7 +2280,7 @@ static int wavelan_get_essid(struct net_device *dev,
 	extra[IW_ESSID_MAX_SIZE] = '\0';
 
 	/* Set the length */
-	wrqu->data.length = strlen(extra) + 1;
+	wrqu->data.length = strlen(extra);
 
 	return 0;
 }