On 8/18/22 9:59 AM, Dmitry Safonov wrote: > diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h > index 849bbf2d3c38..5369458ae89f 100644 > --- a/include/uapi/linux/tcp.h > +++ b/include/uapi/linux/tcp.h > @@ -129,6 +129,9 @@ enum { > > #define TCP_TX_DELAY 37 /* delay outgoing packets by XX usec */ > > +#define TCP_AO 38 /* (Add/Set MKT) */ > +#define TCP_AO_DEL 39 /* (Delete MKT) */ > +#define TCP_AO_MOD 40 /* (Modify MKT) */ > > #define TCP_REPAIR_ON 1 > #define TCP_REPAIR_OFF 0 > @@ -344,6 +347,38 @@ struct tcp_diag_md5sig { > > #define TCP_AO_MAXKEYLEN 80 > > +#define TCP_AO_CMDF_CURR (1 << 0) /* Only checks field sndid */ > +#define TCP_AO_CMDF_NEXT (1 << 1) /* Only checks field rcvid */ > + > +struct tcp_ao { /* setsockopt(TCP_AO) */ > + struct __kernel_sockaddr_storage tcpa_addr; > + char tcpa_alg_name[64]; > + __u16 tcpa_flags; > + __u8 tcpa_prefix; > + __u8 tcpa_sndid; > + __u8 tcpa_rcvid; > + __u8 tcpa_maclen; > + __u8 tcpa_keyflags; > + __u8 tcpa_keylen; > + __u8 tcpa_key[TCP_AO_MAXKEYLEN]; > +} __attribute__((aligned(8))); > + > +struct tcp_ao_del { /* setsockopt(TCP_AO_DEL) */ > + struct __kernel_sockaddr_storage tcpa_addr; > + __u16 tcpa_flags; > + __u8 tcpa_prefix; > + __u8 tcpa_sndid; > + __u8 tcpa_rcvid; > + __u8 tcpa_current; > + __u8 tcpa_rnext; > +} __attribute__((aligned(8))); > + > +struct tcp_ao_mod { /* setsockopt(TCP_AO_MOD) */ > + __u16 tcpa_flags; > + __u8 tcpa_current; > + __u8 tcpa_rnext; > +} __attribute__((aligned(8))); > + > /* setsockopt(fd, IPPROTO_TCP, TCP_ZEROCOPY_RECEIVE, ...) */ > > #define TCP_RECEIVE_ZEROCOPY_FLAG_TLB_CLEAN_HINT 0x1 I do not see anything in the uapi that would specify the VRF for the address.