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Diffstat (limited to 'include/uapi/linux/tcp.h')
-rw-r--r--include/uapi/linux/tcp.h13
1 files changed, 10 insertions, 3 deletions
diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h
index dbf896f3146c..bdac8c42fa82 100644
--- a/include/uapi/linux/tcp.h
+++ b/include/uapi/linux/tcp.h
@@ -28,7 +28,8 @@ struct tcphdr {
__be32 seq;
__be32 ack_seq;
#if defined(__LITTLE_ENDIAN_BITFIELD)
- __u16 res1:4,
+ __u16 ae:1,
+ res1:3,
doff:4,
fin:1,
syn:1,
@@ -40,7 +41,8 @@ struct tcphdr {
cwr:1;
#elif defined(__BIG_ENDIAN_BITFIELD)
__u16 doff:4,
- res1:4,
+ res1:3,
+ ae:1,
cwr:1,
ece:1,
urg:1,
@@ -70,6 +72,7 @@ union tcp_word_hdr {
#define tcp_flag_word(tp) (((union tcp_word_hdr *)(tp))->words[3])
enum {
+ TCP_FLAG_AE = __constant_cpu_to_be32(0x01000000),
TCP_FLAG_CWR = __constant_cpu_to_be32(0x00800000),
TCP_FLAG_ECE = __constant_cpu_to_be32(0x00400000),
TCP_FLAG_URG = __constant_cpu_to_be32(0x00200000),
@@ -78,7 +81,7 @@ enum {
TCP_FLAG_RST = __constant_cpu_to_be32(0x00040000),
TCP_FLAG_SYN = __constant_cpu_to_be32(0x00020000),
TCP_FLAG_FIN = __constant_cpu_to_be32(0x00010000),
- TCP_RESERVED_BITS = __constant_cpu_to_be32(0x0F000000),
+ TCP_RESERVED_BITS = __constant_cpu_to_be32(0x0E000000),
TCP_DATA_OFFSET = __constant_cpu_to_be32(0xF0000000)
};
@@ -136,6 +139,9 @@ enum {
#define TCP_AO_REPAIR 42 /* Get/Set SNEs and ISNs */
#define TCP_IS_MPTCP 43 /* Is MPTCP being used? */
+#define TCP_RTO_MAX_MS 44 /* max rto time in ms */
+#define TCP_RTO_MIN_US 45 /* min rto time in us */
+#define TCP_DELACK_MAX_US 46 /* max delayed ack time in us */
#define TCP_REPAIR_ON 1
#define TCP_REPAIR_OFF 0
@@ -178,6 +184,7 @@ enum tcp_fastopen_client_fail {
#define TCPI_OPT_ECN_SEEN 16 /* we received at least one packet with ECT */
#define TCPI_OPT_SYN_DATA 32 /* SYN-ACK acked data in SYN sent or rcvd */
#define TCPI_OPT_USEC_TS 64 /* usec timestamps */
+#define TCPI_OPT_TFO_CHILD 128 /* child from a Fast Open option on SYN */
/*
* Sender's congestion state indicating normal or abnormal situations