From: Sylvain Rochet <sylvain.rochet@xxxxxxxxxxxx> Date: Sun, 26 Apr 2015 20:40:51 +0200 > I am currently having an issue with PPP over L2TP (UDP) and MPPE in > stateless mode (default mode), UDP does not guarantee packet ordering so > we might get out of order packet. MPPE needs to be continuously synched > so we should drop late UDP packet. > > I added a printk on the number of time we rekeyed in MPPE decompressor, > this is what we currently have if we receive a slightly out of order UDP > packet: ... > This is obviously wrong, we missed packet 1561 and we already rekeyed 2 > times for 1562 we previously received, we can't recover the decryption > key we need for 1561, we should drop it instead of rekeying 4095 times. > > This patch series drop any packet with are not within the 4096/2 forward > window. Series applied, thanks Sylvain. -- To unsubscribe from this list: send the line "unsubscribe linux-ppp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
