[Swan-dev] [PATCH libreswan] Add support for IPSec HW-offload on the NIC

[Ilan Tayari]

> -----Original Message-----
> From: Antony Antony [mailto:antony at phenome.org]
> Subject: Re: [Swan-dev] [PATCH libreswan] Add support for IPSec HW-offload
> on the NIC
> 
> On Thu, Jun 29, 2017 at 04:51:12PM +0000, Ilan Tayari wrote:
> > > Here are a couple of proposed changes, untested, after a closer
> review.
> > >
> > > 1. rename option to "nic-offload". Libreswan is moving away from "_"
> > > 2. whack --nic-offload
> > > 3. nic-offload:yes;  in "ipsec staus" connection
> > > 4. there is one coding style change I made.
> > >
> >
> 
> > I just tested this.
> >
> > 1. I would squash your patch 0001 into my patch, no need to put this
> naming back-and-forth into git history
> 
> good.
> 
> > 2. ipsec status shows nic-offload:yes
> 
> > 000 "myconn":   nflog-group: unset; mark: unset; vti-iface:unset;  vti-
> routing:no; vti-shared:no; nic-offload:yes;
> 
> looks good. thanks for testing.
> 
> > 3. I'll try to get whack command line switch to work next week.
> > Do you have an example of command to add a connection with specific
> phase2alg using whack?
> 
> try: this line for both ends.
> 
> ipsec whack  --psk --encrypt --name myconn --tunnel --host "192.168.7.1" \
> --to --host "192.168.7.11" --esp aes_gcm256-null --nic-offload
> 
> ipsec auto --up myconn

This works well. Sets up offload properly.
Traffic is crypto-offloaded.

> 
> and to delete
> 
> ipsec auto --delete myconn

This too. I added and deleted several times with some variations.

> 
> If it is ikev2 add both of these " --ikev2-allow --ikev2-propose"

This also worked well. I also tried transport mode.

> 
> -antony