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authorLawrence Brakmo <brakmo@fb.com>2017-06-30 20:02:47 -0700
committerDavid S. Miller <davem@davemloft.net>2017-07-01 16:15:14 -0700
commit9872a4bde31b0b055448e9ac1f4c9ee62d978766 (patch)
treed335c073d98d9a96983b1e0b5a341957c8dc982d /include/uapi
parent8c4b4c7e9ff0447995750d9329949fa082520269 (diff)
downloadlinux-9872a4bde31b0b055448e9ac1f4c9ee62d978766.tar.bz2
bpf: Add TCP connection BPF callbacks
Added callbacks to BPF SOCK_OPS type program before an active connection is intialized and after a passive or active connection is established. The following patch demostrates how they can be used to set send and receive buffer sizes. 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.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index dd43b22758d6..2405fe304c98 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -767,6 +767,17 @@ enum {
* window (in packets) or -1 if default
* value should be used
*/
+ BPF_SOCK_OPS_TCP_CONNECT_CB, /* Calls BPF program right before an
+ * active connection is initialized
+ */
+ BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB, /* Calls BPF program when an
+ * active connection is
+ * established
+ */
+ BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB, /* Calls BPF program when a
+ * passive connection is
+ * established
+ */
};
#endif /* _UAPI__LINUX_BPF_H__ */