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Date: Tue, 10 Mar 2020 16:31:18 -0700 (PDT) From: David Miller <davem@...emloft.net> To: mayflowerera@...il.com Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, sd@...asysnail.net Subject: Re: [PATCH v3 1/2] macsec: Support XPN frame handling - IEEE 802.1AEbw From: Era Mayflower <mayflowerera@...il.com> Date: Mon, 9 Mar 2020 19:47:01 +0000 > Support extended packet number cipher suites (802.1AEbw) frames handling. > This does not include the needed netlink patches. > > * Added xpn boolean field to `struct macsec_secy`. > * Added ssci field to `struct_macsec_tx_sa` (802.1AE figure 10-5). > * Added ssci field to `struct_macsec_rx_sa` (802.1AE figure 10-5). > * Added salt field to `struct macsec_key` (802.1AE 10.7 NOTE 1). > * Created pn_t type for easy access to lower and upper halves. > * Created salt_t type for easy access to the "ssci" and "pn" parts. > * Created `macsec_fill_iv_xpn` function to create IV in XPN mode. > * Support in PN recovery and preliminary replay check in XPN mode. > > In addition, according to IEEE 802.1AEbw figure 10-5, the PN of incoming > frame can be 0 when XPN cipher suite is used, so fixed the function > `macsec_validate_skb` to fail on PN=0 only if XPN is off. > > Signed-off-by: Era Mayflower <mayflowerera@...il.com> Sabrina, please review these two patches. Thank you.
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