Hello Hal,
With which SRP target has this behavior been observed ? Has this patch
been tested with the LIO SRP target ?
Hi Bart,
This issue was detected when testing a new array with SRP support.
This does not involve LIO as the Linux CM stack does not behave
in the way described in this pat
On 11/12/2015 3:30 PM, Hefty, Sean wrote:
>>> + /* CM attributes other than ClassPortInfo only use Send method
>> */
>>> + if (mad_hdr->mgmt_class == IB_MGMT_CLASS_CM) {
>>> + if (mad_hdr->attr_id != IB_MGMT_CLASSPORTINFO_ATTR_ID) {
>>> +
On 11/12/2015 5:57 PM, Hefty, Sean wrote:
>> IIRC responding to Get(CPI) is mandatory?
>
> Maybe the drivers are responding? I don't believe that the CM does.
Sorry for the confusion. linux kernel CM does not respond to Get(CPI).
I was just trying to add the validation code in for that since it
IOn 11/12/2015 5:13 PM, Jason Gunthorpe wrote:
> On Thu, Nov 12, 2015 at 08:30:55PM +, Hefty, Sean wrote:
+ /* CM attributes other than ClassPortInfo only use Send method
>>> */
+ if (mad_hdr->mgmt_class == IB_MGMT_CLASS_CM) {
+ if (mad_hdr->att
On 11/12/2015 1:13 PM, ira.weiny wrote:
> On Thu, Nov 12, 2015 at 01:48:50PM +0200, Hal Rosenstock wrote:
>>
>> Receipt of CM MAD with response method for other than ClassPortInfo
>> attribute is invalid.
>>
>> CM attributes other than ClassPortInfo use send method only
>> and GetResp is valid for
> IIRC responding to Get(CPI) is mandatory?
Maybe the drivers are responding? I don't believe that the CM does.
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On Thu, Nov 12, 2015 at 08:30:55PM +, Hefty, Sean wrote:
> > > + /* CM attributes other than ClassPortInfo only use Send method
> > */
> > > + if (mad_hdr->mgmt_class == IB_MGMT_CLASS_CM) {
> > > + if (mad_hdr->attr_id != IB_MGMT_CLASSPORTINFO_ATTR_ID) {
> > > +
> > + /* CM attributes other than ClassPortInfo only use Send method
> */
> > + if (mad_hdr->mgmt_class == IB_MGMT_CLASS_CM) {
> > + if (mad_hdr->attr_id != IB_MGMT_CLASSPORTINFO_ATTR_ID) {
> > + if (mad_hdr->method != IB_MGMT_METHOD_S
On Thu, Nov 12, 2015 at 01:48:50PM +0200, Hal Rosenstock wrote:
>
> Receipt of CM MAD with response method for other than ClassPortInfo
> attribute is invalid.
>
> CM attributes other than ClassPortInfo use send method only
> and GetResp is valid for ClassPortInfo attribute.
> Note also that the
On 11/12/2015 03:48 AM, Hal Rosenstock wrote:
A new SRP target has been observed to respond to Send CM REQ
with GetResp of CM REQ with bad status. This is non conformant
with IBA spec but exposes a vulnerability in the current MAD/CM
code which will respond to the incoming GetResp of CM REQ as if
> Receipt of CM MAD with response method for other than ClassPortInfo
> attribute is invalid.
>
> CM attributes other than ClassPortInfo use send method only
> and GetResp is valid for ClassPortInfo attribute.
> Note also that the CM ClassPortInfo is not currently supported.
>
> The SRP initiator
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