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.

Lawrence Brakmo committed 9 years ago

Commit 8550f321 parent ae161894 files · +17 −2Browse files

Showing the changes to include/uapi/linux (1 of 4 files). Show all

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include/uapi/linux/bpf.h+3−0

@@ -748,6 +748,9 @@ struct bpf_sock_ops { · 747 unmodified lines
748	748	*/
749	749	enum {
750	750	BPF_SOCK_OPS_VOID,
	751	+ BPF_SOCK_OPS_TIMEOUT_INIT, /* Should return SYN-RTO value to use or
	752	+ * -1 if default value should be used
	753	+ */
751	754	};
752	755
753	756	#endif /* _UAPI__LINUX_BPF_H__ */