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Date: Fri, 19 May 2017 13:19:07 +0200 From: Steffen Klassert <steffen.klassert@...unet.com> To: Antony Antony <antony@...nome.org> CC: <netdev@...r.kernel.org>, Richard Guy Briggs <rgb@...colour.ca>, "Herbert Xu" <herbert@...dor.apana.org.au> Subject: Re: [PATCH v2] xfrm: fix state migration copy replay sequence numbers On Fri, May 19, 2017 at 12:47:00PM +0200, Antony Antony wrote: > During xfrm migration copy replay and preplay sequence numbers > from the previous state. > > Here is a tcpdump output showing the problem. > 10.0.10.46 is running vanilla kernel, is the IKE/IPsec responder. > After the migration it sent wrong sequence number, reset to 1. > The migration is from 10.0.0.52 to 10.0.0.53. > > IP 10.0.0.52.4500 > 10.0.10.46.4500: UDP-encap: ESP(spi=0x43ef462d,seq=0x7cf), length 136 > IP 10.0.10.46.4500 > 10.0.0.52.4500: UDP-encap: ESP(spi=0xca1c282d,seq=0x7cf), length 136 > IP 10.0.0.52.4500 > 10.0.10.46.4500: UDP-encap: ESP(spi=0x43ef462d,seq=0x7d0), length 136 > IP 10.0.10.46.4500 > 10.0.0.52.4500: UDP-encap: ESP(spi=0xca1c282d,seq=0x7d0), length 136 > > IP 10.0.0.53.4500 > 10.0.10.46.4500: NONESP-encap: isakmp: child_sa inf2[I] > IP 10.0.10.46.4500 > 10.0.0.53.4500: NONESP-encap: isakmp: child_sa inf2[R] > IP 10.0.0.53.4500 > 10.0.10.46.4500: NONESP-encap: isakmp: child_sa inf2[I] > IP 10.0.10.46.4500 > 10.0.0.53.4500: NONESP-encap: isakmp: child_sa inf2[R] > > IP 10.0.0.53.4500 > 10.0.10.46.4500: UDP-encap: ESP(spi=0x43ef462d,seq=0x7d1), length 136 > > NOTE: next sequence is wrong 0x1 > > IP 10.0.10.46.4500 > 10.0.0.53.4500: UDP-encap: ESP(spi=0xca1c282d,seq=0x1), length 136 > IP 10.0.0.53.4500 > 10.0.10.46.4500: UDP-encap: ESP(spi=0x43ef462d,seq=0x7d2), length 136 > IP 10.0.10.46.4500 > 10.0.0.53.4500: UDP-encap: ESP(spi=0xca1c282d,seq=0x2), length 136 > > Signed-off-by: Antony Antony <antony@...nome.org> Applied, thanks Antony!
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