diff options
| author | Dmitry Safonov <dima@arista.com> | 2023-10-23 20:22:14 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-10-27 10:35:46 +0100 |
| commit | faadfaba5e018ca0f9595f17115ff48416b7b85e (patch) | |
| tree | 537959a9c4010f3cdc0f07efdbdbafe7b04de766 /include/uapi | |
| parent | 248411b8cb8974a1e1c8e43123c1e682fbd64969 (diff) | |
net/tcp: Add TCP_AO_REPAIR
Add TCP_AO_REPAIR setsockopt(), getsockopt(). They let a user to repair
TCP-AO ISNs/SNEs. Also let the user hack around when (tp->repair) is on
and add ao_info on a socket in any supported state.
As SNEs now can be read/written at any moment, use
WRITE_ONCE()/READ_ONCE() to set/read them.
Signed-off-by: Dmitry Safonov <dima@arista.com>
Acked-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/tcp.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h index be34d7c5c531..c07e9f90c084 100644 --- a/include/uapi/linux/tcp.h +++ b/include/uapi/linux/tcp.h @@ -133,6 +133,7 @@ enum { #define TCP_AO_DEL_KEY 39 /* Delete MKT */ #define TCP_AO_INFO 40 /* Set/list TCP-AO per-socket options */ #define TCP_AO_GET_KEYS 41 /* List MKT(s) */ +#define TCP_AO_REPAIR 42 /* Get/Set SNEs and ISNs */ #define TCP_REPAIR_ON 1 #define TCP_REPAIR_OFF 0 @@ -458,6 +459,13 @@ struct tcp_ao_getsockopt { /* getsockopt(TCP_AO_GET_KEYS) */ __u64 pkt_bad; /* out: segments that failed verification */ } __attribute__((aligned(8))); +struct tcp_ao_repair { /* {s,g}etsockopt(TCP_AO_REPAIR) */ + __be32 snt_isn; + __be32 rcv_isn; + __u32 snd_sne; + __u32 rcv_sne; +} __attribute__((aligned(8))); + /* setsockopt(fd, IPPROTO_TCP, TCP_ZEROCOPY_RECEIVE, ...) */ #define TCP_RECEIVE_ZEROCOPY_FLAG_TLB_CLEAN_HINT 0x1 |