iwl3945: WPA2+swcrypto=0: receives broadcast only

iwl3945: WPA2+swcrypto=0: receives broadcast only

[Pedro Francisco]

Hi!
When I connect to a WPA2 AP with swcrypto=0 I get the following kinds
of traffic:
ARP (Broadcast)
DHCP (255.255.255.255)
IGMP (224.0.0.22 and 224.0.0.1)

If I do a normal DHCP, I get no response. If I do "dhclient -B",
requesting BOOTP broadcast flag, I get an IP, as expected. However ARP
requests go unresponded as expected.

The closest I've found relative to this is
http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=1872 . It is
however reported as fixed on *both* "software/hardware crypto with
WPA2 PSK and EAP" (2009-01-06).

It seems curious I can receive broadcast traffic but not traffic specific to me.
I'd present the debug of iwl3945 but apparently that option was
removed from iwl3945 module?

Thanks in Advance,
-- 
Pedro F.

Re: iwl3945: WPA2+swcrypto=0: receives broadcast only

[Stanislaw Gruszka]

Hi

On Mon, Feb 06, 2012 at 06:41:21PM +0000, Pedro Francisco wrote:
> When I connect to a WPA2 AP with swcrypto=0 I get the following kinds
> of traffic:
> ARP (Broadcast)
> DHCP (255.255.255.255)
> IGMP (224.0.0.22 and 224.0.0.1)
> 
> If I do a normal DHCP, I get no response. If I do "dhclient -B",
> requesting BOOTP broadcast flag, I get an IP, as expected. However ARP
> requests go unresponded as expected.
> 
> The closest I've found relative to this is
> http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=1872 . It is
> however reported as fixed on *both* "software/hardware crypto with
> WPA2 PSK and EAP" (2009-01-06).
> 
> It seems curious I can receive broadcast traffic but not traffic specific to me.
Brodcast traffic encrypted with different key, but perhaps there are
some more differences.

I think that hw crypto problems can be fixed only in firmware, but I'm
not sure.

> I'd present the debug of iwl3945 but apparently that option was
> removed from iwl3945 module?
??? absolutily not, perhaps you did not compile CONFIG_IWLEGACY_DEBUG=y ?

Stanislaw

Re: iwl3945: WPA2+swcrypto=0: receives broadcast only

[Pedro Francisco]

[-- Attachment #1: Type: text/plain, Size: 717 bytes --]

Hi! inline :)

On Thu, Feb 16, 2012 at 12:03 PM, Stanislaw Gruszka <sgruszka@redhat.com> wrote:
> On Mon, Feb 06, 2012 at 06:41:21PM +0000, Pedro Francisco wrote:
> > I'd present the debug of iwl3945 but apparently that option was
> > removed from iwl3945 module?
> ??? absolutily not, perhaps you did not compile CONFIG_IWLEGACY_DEBUG=y ?

Sorry, I got confused due to /boot/config-* (Fedora 16 here) having no
CONFIG_IWLEGACY_DEBUG= .

I've now understood the correct file [to check for iwl3945 config
options] was /boot/config.mk-compat-wireless-* .

I've applied the attached patch to the kernel SPEC+SOURCE combo and
will investigate the issue of WPA2 not working properly.

Thank you for your reply!

-- 
Pedro

[-- Attachment #2: iwlegacyDebug-config-mk.patch --]
[-- Type: text/x-patch, Size: 322 bytes --]

diff --git a/config.mk b/config.mk
index 6503ae1..b3d82d4 100644
--- a/config.mk
+++ b/config.mk
@@ -300,8 +300,8 @@ CONFIG_IWLWIFI=m
 CONFIG_IWLEGACY=m
 CONFIG_COMPAT_IWL4965=m
 CONFIG_IWL3945=m
-# CONFIG_IWLEGACY_DEBUG=y
-# CONFIG_IWLEGACY_DEBUGFS=y
+CONFIG_IWLEGACY_DEBUG=y
+CONFIG_IWLEGACY_DEBUGFS=y
 
 
 CONFIG_B43=m

[-- Attachment #3: iwlegacyDebug-SPEC.patch --]
[-- Type: text/x-patch, Size: 1136 bytes --]

diff --git a/SPECS/kernel.spec b/SPECS/kernel.spec
index d59e592..a0ede80 100644
--- a/SPECS/kernel.spec
+++ b/SPECS/kernel.spec
@@ -23,7 +23,7 @@ Summary: The Linux kernel
 #
 # (Uncomment the '#' and both spaces below to set the buildid.)
 #
-# % define buildid .local
+%define buildid .local
 ###################################################################
 
 # The buildid can also be specified on the rpmbuild command line
@@ -809,6 +809,7 @@ Patch21235: scsi-sd_revalidate_disk-prevent-NULL-ptr-deref.patch
 Patch50000: compat-wireless-config-fixups.patch
 Patch50001: compat-wireless-pr_fmt-warning-avoidance.patch
 Patch50002: compat-wireless-integrated-build.patch
+Patch50003: iwlegacyDebug.patch
 Patch50100: compat-wireless-rtl8192cu-Fix-WARNING-on-suspend-resume.patch
 
 # Pending upstream fixes
@@ -1586,6 +1587,7 @@ cd compat-wireless-%{cwversion}
 ApplyPatch compat-wireless-config-fixups.patch
 ApplyPatch compat-wireless-pr_fmt-warning-avoidance.patch
 ApplyPatch compat-wireless-integrated-build.patch
+ApplyPatch iwlegacyDebug.patch
 
 ApplyPatch compat-wireless-rtl8192cu-Fix-WARNING-on-suspend-resume.patch