@@ -2328,6 +2328,23 @@ union bpf_attr {
* "**y**".
* Return
* 0
+ *
+ * struct bpf_sock *bpf_sk_fullsock(struct bpf_sock *sk)
+ * Description
+ * This helper tests if a bpf_sock is a fullsock such that
+ * all the fields in bpf_sock can be accessed.
+ * Return
+ * The same pointer if *sk* is a fullsock. Otherwise,
+ * NULL is returned.
+ *
+ * struct bpf_tcp_sock *bpf_tcp_sock(struct bpf_sock *sk)
+ * Description
+ * Obtain a **struct bpf_tcp_sock** pointer from a
+ * **struct bpf_sock** pointer.
+ *
+ * Return
+ * Pointer to **struct bpf_tcp_sock**, or **NULL** in
+ * case of failure.
*/
#define __BPF_FUNC_MAPPER(FN) \
FN(unspec), \
@@ -2422,7 +2439,9 @@ union bpf_attr {
FN(map_peek_elem), \
FN(msg_push_data), \
FN(msg_pop_data), \
- FN(rc_pointer_rel),
+ FN(rc_pointer_rel), \
+ FN(sk_fullsock), \
+ FN(tcp_sock),
/* integer value in 'imm' field of BPF_CALL instruction selects which helper
* function eBPF program intends to call
@@ -2542,6 +2561,7 @@ struct __sk_buff {
__u64 tstamp;
__u32 wire_len;
__u32 gso_segs;
+ __bpf_md_ptr(struct bpf_sock *, sk);
};
struct bpf_tunnel_key {
@@ -2604,6 +2624,45 @@ struct bpf_sock {
*/
};
+struct bpf_tcp_sock {
+ __u32 snd_cwnd; /* Sending congestion window */
+ __u32 srtt_us; /* smoothed round trip time << 3 in usecs */
+ __u32 rtt_min;
+ __u32 snd_ssthresh; /* Slow start size threshold */
+ __u32 rcv_nxt; /* What we want to receive next */
+ __u32 snd_nxt; /* Next sequence we send */
+ __u32 snd_una; /* First byte we want an ack for */
+ __u32 mss_cache; /* Cached effective mss, not including SACKS */
+ __u32 ecn_flags; /* ECN status bits. */
+ __u32 rate_delivered; /* saved rate sample: packets delivered */
+ __u32 rate_interval_us; /* saved rate sample: time elapsed */
+ __u32 packets_out; /* Packets which are "in flight" */
+ __u32 retrans_out; /* Retransmitted packets out */
+ __u32 total_retrans; /* Total retransmits for entire connection */
+ __u32 segs_in; /* RFC4898 tcpEStatsPerfSegsIn
+ * total number of segments in.
+ */
+ __u32 data_segs_in; /* RFC4898 tcpEStatsPerfDataSegsIn
+ * total number of data segments in.
+ */
+ __u32 segs_out; /* RFC4898 tcpEStatsPerfSegsOut
+ * The total number of segments sent.
+ */
+ __u32 data_segs_out; /* RFC4898 tcpEStatsPerfDataSegsOut
+ * total number of data segments sent.
+ */
+ __u32 lost_out; /* Lost packets */
+ __u32 sacked_out; /* SACK'd packets */
+ __u64 bytes_received; /* RFC4898 tcpEStatsAppHCThruOctetsReceived
+ * sum(delta(rcv_nxt)), or how many bytes
+ * were acked.
+ */
+ __u64 bytes_acked; /* RFC4898 tcpEStatsAppHCThruOctetsAcked
+ * sum(delta(snd_una)), or how many bytes
+ * were acked.
+ */
+};
+
struct bpf_sock_tuple {
union {
struct {
This patch sync the uapi bpf.h to tools/. Signed-off-by: Martin KaFai Lau <kafai@fb.com> --- tools/include/uapi/linux/bpf.h | 61 +++++++++++++++++++++++++++++++++- 1 file changed, 60 insertions(+), 1 deletion(-)