[Howto] Broadcom BCM4312 802.11b/g [14e4:4315] (rev 01)

[spawn]

Hello there,

Recently I updated my kernel to 2.6.35 and my injection stopped to work

When I lock the channel with airodump-ng , channel not lock properly in the corretly channel.

Some google searches and I see a patch to the kernel . It's apply for more than one wireless card.

Follow the patch :

--- net/wireless/chan.c
+++ net/wireless/chan.c
@@ -49,9 +49,12 @@ int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
{
struct ieee80211_channel *chan;
int result;
+ struct wireless_dev *mon_dev = NULL;

- if (wdev && wdev->iftype == NL80211_IFTYPE_MONITOR)
+ if (wdev && wdev->iftype == NL80211_IFTYPE_MONITOR) {
+ mon_dev = wdev;
wdev = NULL;
+ }

if (wdev) {
ASSERT_WDEV_LOCK(wdev);
@@ -76,5 +79,8 @@ int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
if (wdev)
wdev->channel = chan;

+ if (mon_dev)
+ mon_dev->channel = chan;
+
return 0;
}

# cd /usr/src/linux
# patch -p0 < /way/to/your/patch 
# make SUBDIRS=net/wireless modules
# make modules_install 
# depmod -a

Now, my wireless injection works

References:

/dev/random » BackTrack4-R1 + AWUS036NH = Win!

https://patchwork.kernel.org/patch/103589/

[akuj1n]

i use bcm 4312 as well and have updated all aspects of my backtrack distro that i know off at least

but i use spoonwep that i apt-got

no issues using spoonwep, and im fairly certain spoonwep is just a gui for aircrack, etc.

[spawn]

The problem is with broadcom's with pci-id, [14e4:4315], which is partially supported

Regards

[akuj1n]

could you give me the command to manually test packet injection in bt4? after re reading this im no so sure that i still have injection, thanks

[spawn]

aireplay-ng -9 <monitor_if>

but test if your monitor_if lock on channels properly

try lock a channel with airodump-ng and try deauthenticate an client connected on AP

Regards