BFD: basic asynchronous session up/down

This is a work-in-progress basic BFD session handling. Only
asynchronous mode is supported at the moment. Setting the session flags
doesn't work.

Change-Id: Idba27f721b5c35be5a66a6d202a63d23ff7ecf6f
Signed-off-by: Klement Sekera <ksekera@cisco.com>

1 files changed, 185 insertions, 0 deletions

diff --git a/vpp/vpp-api/vpe.api b/vpp/vpp-api/vpe.api
index 1c33f70b..b13c2606 100644
--- a/vpp/vpp-api/vpe.api
+++ b/vpp/vpp-api/vpe.api
@@ -4656,6 +4656,191 @@ define feature_enable_disable_reply
     i32 retval;
 };
 
+/** \brief Configure BFD feature
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param slow_timer - slow timer (seconds)
+    @param min_tx - desired min tx interval
+    @param min_rx - desired min rx interval
+    @param detect_mult - desired detection multiplier
+*/
+define bfd_set_config {
+  u32 client_index;
+  u32 context;
+  u32 slow_timer;
+  u32 min_tx;
+  u32 min_rx;
+  u8 detect_mult;
+};
+
+/** \brief Configure BFD feature response
+    @param context - sender context, to match reply w/ request
+    @param retval - return code for the request
+*/
+define bfd_set_config_reply {
+  u32 context;
+  i32 retval;
+};
+
+/** \brief Get BFD configuration
+*/
+define bfd_get_config {
+  u32 client_index;
+  u32 context;
+};
+
+/** \brief Get BFD configuration response
+    @param context - sender context, to match reply w/ request
+    @param retval - return code for the request
+    @param slow_timer - slow timer (seconds)
+    @param min_tx - desired min tx interval
+    @param min_rx - desired min rx interval
+    @param detect_mult - desired detection multiplier
+*/
+define bfd_get_config_reply {
+  u32 client_index;
+  u32 context;
+  u32 slow_timer;
+  u32 min_tx;
+  u32 min_rx;
+  u8 detect_mult;
+};
+
+/** \brief Add UDP BFD session on interface
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param sw_if_index - sw index of the interface
+    @param desired_min_tx - desired min transmit interval (microseconds)
+    @param required_min_rx - required min receive interval (microseconds)
+    @param detect_mult - detect multiplier (# of packets missed between connection goes down)
+    @param local_addr - local address
+    @param peer_addr - peer address
+    @param is_ipv6 - local_addr, peer_addr are IPv6 if non-zero, otherwise IPv4
+*/
+define bfd_udp_add {
+  u32 client_index;
+  u32 context;
+  u32 sw_if_index;
+  u32 desired_min_tx;
+  u32 required_min_rx;
+  u8 local_addr[16];
+  u8 peer_addr[16];
+  u8 is_ipv6;
+  u8 detect_mult;
+};
+
+/** \brief Add UDP BFD session response
+    @param context - sender context, to match reply w/ request
+    @param retval - return code for the request
+    @param bs_index - index of the session created
+*/
+define bfd_udp_add_reply {
+  u32 context;
+  i32 retval;
+  u32 bs_index;
+};
+
+/** \brief Delete UDP BFD session on interface
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param sw_if_index - sw index of the interface
+    @param local_addr - local address
+    @param peer_addr - peer address
+    @param is_ipv6 - local_addr, peer_addr are IPv6 if non-zero, otherwise IPv4
+*/
+define bfd_udp_del {
+  u32 client_index;
+  u32 context;
+  u32 sw_if_index;
+  u8 local_addr[16];
+  u8 peer_addr[16];
+  u8 is_ipv6;
+};
+
+/** \brief Delete UDP BFD session response
+    @param context - sender context, to match reply w/ request
+    @param retval - return code for the request
+*/
+define bfd_udp_del_reply {
+  u32 context;
+  i32 retval;
+};
+
+/** \brief Get all BFD sessions
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+*/
+define bfd_udp_session_dump {
+  u32 client_index;
+  u32 context;
+};
+
+/** \brief BFD session details structure
+    @param context - sender context, to match reply w/ request
+    @param bs_index - index of the session
+    @param sw_if_index - sw index of the interface
+    @param local_addr - local address
+    @param peer_addr - peer address
+    @param is_ipv6 - local_addr, peer_addr are IPv6 if non-zero, otherwise IPv4
+    @param state - session state
+*/
+define bfd_udp_session_details {
+  u32 context;
+  u32 bs_index; 
+  u32 sw_if_index;
+  u8 local_addr[16];
+  u8 peer_addr[16];
+  u8 is_ipv6;
+  u8 state;
+};
+
+/** \brief Set flags of BFD session
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param bs_index - index of the bfd session to set flags on
+    @param admin_up_down - set the admin state, 1 = up, 0 = down
+*/
+define bfd_session_set_flags {
+  u32 client_index;
+  u32 context;
+  u32 bs_index;
+  u8 admin_up_down;
+};
+
+/** \brief Reply to bfd_session_set_flags 
+    @param context - sender context which was passed in the request
+    @param retval - return code of the set flags request
+*/
+define bfd_session_set_flags_reply
+{
+  u32 context;
+  i32 retval;
+};
+
+/** \brief Register for BFD events
+    @param client_index - opaque cookie to identify the sender
+    @param context - sender context, to match reply w/ request
+    @param enable_disable - 1 => register for events, 0 => cancel registration
+    @param pid - sender's pid
+*/
+define want_bfd_events
+{
+  u32 client_index;
+  u32 context;
+  u32 enable_disable;
+  u32 pid;
+};
+
+/** \brief Reply for BFD events registration
+    @param context - returned sender context, to match reply w/ request
+    @param retval - return code
+*/
+define want_bfd_events_reply
+{
+  u32 context;
+  i32 retval;
+};
+
 /*
  * Local Variables:
  * eval: (c-set-style "gnu")