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authorLawrence Brakmo <brakmo@fb.com>2017-06-30 20:02:42 -0700
committerDavid S. Miller <davem@davemloft.net>2017-07-01 16:15:13 -0700
commit8550f328f45db6d37981eb2041bc465810245c03 (patch)
treee3594097d7b3c9dc3176c8f9084431cf24d79cf6 /include/uapi
parentae16189efb0fe2bdc5e702bd6221ed6d0ff5babd (diff)
bpf: Support for per connection SYN/SYN-ACK RTOs
This patch adds support for setting a per connection SYN and SYN_ACK RTOs from within a BPF_SOCK_OPS program. For example, to set small RTOs when it is known both hosts are within a datacenter. Signed-off-by: Lawrence Brakmo <brakmo@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/bpf.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 01cd485ccd4f..00702b294447 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -748,6 +748,9 @@ struct bpf_sock_ops {
*/
enum {
BPF_SOCK_OPS_VOID,
+ BPF_SOCK_OPS_TIMEOUT_INIT, /* Should return SYN-RTO value to use or
+ * -1 if default value should be used
+ */
};
#endif /* _UAPI__LINUX_BPF_H__ */