session: move ctrl messages from bapi to mq
Type:refactor
Moves connect, disconnect, bind, unbind and app detach to message
queue from binary api. Simplifies app/vcl interaction with the session
layer since all session control messages are now handled over the mq.
Add/del segment messages require internal C api changes which affect all
builtin applications. They'll be moved in a different patch and might
not be back portable to 19.08.
Change-Id: I93f6d18e551b024effa75d47f5ff25f23ba8aff5
Signed-off-by: Florin Coras <fcoras@cisco.com>
diff --git a/src/vnet/session/session.api b/src/vnet/session/session.api
index 533f65e..52e050d 100644
--- a/src/vnet/session/session.api
+++ b/src/vnet/session/session.api
@@ -13,12 +13,13 @@
* limitations under the License.
*/
-option version = "1.6.0";
+option version = "1.7.0";
/** \brief client->vpp, attach application to session layer
+ ### WILL BE DEPRECATED POST 20.01 ###
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
- @param initial_segment_size - size of the initial shm segment to be
+ @param initial_segment_size - size of the initial shm segment to be
allocated
@param options - segment size, fifo sizes, etc.
@param namespace_id_len - length of the namespace id c-string
@@ -32,17 +33,18 @@
u8 namespace_id_len;
u8 namespace_id [64];
};
-
+
/** \brief Application attach reply
+ ### WILL BE DEPRECATED POST 20.01 ###
@param context - sender context, to match reply w/ request
@param retval - return code for the request
- @param app_event_queue_address - vpp event queue address or 0 if this
+ @param app_event_queue_address - vpp event queue address or 0 if this
connection shouldn't send events
@param n_fds - number of fds exchanged
@param fd_flags - set of flags that indicate which fds are to be expected
- over the socket (set only if socket transport available)
+ over the socket (set only if socket transport available)
@param segment_size - size of first shm segment
- @param segment_name_length - length of segment name
+ @param segment_name_length - length of segment name
@param segment_name - name of segment client needs to attach to
@param app_index - index of the newly created app
@param segment_handle - handle for segment
@@ -60,6 +62,52 @@
u64 segment_handle;
};
+/** \brief Application attach to session layer
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param options - segment size, fifo sizes, etc.
+ @param namespace_id_len - length of the namespace id c-string
+ @param namespace_id - 0 terminted c-string
+*/
+ define app_attach {
+ u32 client_index;
+ u32 context;
+ u64 options[16];
+ u8 namespace_id_len;
+ u8 namespace_id[64];
+ };
+
+ /** \brief Application attach reply
+ @param context - sender context, to match reply w/ request
+ @param retval - return code for the request
+ @param app_mq - app message queue
+ @param vpp_ctrl_mq - vpp message queue for control events that should
+ be handled in main thread, i.e., bind/connect
+ @param vpp_ctrl_mq_thread_index - thread index of the ctrl mq
+ @param app_index - index of the newly created app
+ @param n_fds - number of fds exchanged
+ @param fd_flags - set of flags that indicate which fds are to be expected
+ over the socket (set only if socket transport available)
+ @param segment_size - size of first shm segment
+ @param segment_name_length - length of segment name
+ @param segment_name - name of segment client needs to attach to
+ @param segment_handle - handle for segment
+*/
+define app_attach_reply {
+ u32 context;
+ i32 retval;
+ u64 app_mq;
+ u64 vpp_ctrl_mq;
+ u8 vpp_ctrl_mq_thread;
+ u32 app_index;
+ u8 n_fds;
+ u8 fd_flags;
+ u32 segment_size;
+ u8 segment_name_length;
+ u8 segment_name[128];
+ u64 segment_handle;
+};
+
/** \brief Application add TLS certificate
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
@@ -89,6 +137,7 @@
};
/** \brief client->vpp, attach application to session layer
+ ### WILL BE DEPRECATED POST 20.01 ###
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
*/
@@ -96,12 +145,12 @@
u32 client_index;
u32 context;
};
-
+
/** \brief vpp->client, please map an additional shared memory segment
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
- @param fd_flags - set of flags that indicate which, if any, fds are
- to be expected over the socket. This is set only if
+ @param fd_flags - set of flags that indicate which, if any, fds are
+ to be expected over the socket. This is set only if
socket transport available
@param segment_size - size of the segment to be mapped
@param segment_name - name of the segment to be mapped
@@ -120,7 +169,7 @@
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
@param segment_name - segment name
- @param segment_handle - handle of the segment to be unmapped
+ @param segment_handle - handle of the segment to be unmapped
*/
autoreply define unmap_segment {
u32 client_index;
@@ -129,6 +178,7 @@
};
/** \brief Bind to a given URI
+ ### WILL BE DEPRECATED POST 20.01 ###
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
@param accept_cookie - sender accept cookie, to identify this bind flavor
@@ -144,6 +194,7 @@
};
/** \brief Unbind a given URI
+ ### WILL BE DEPRECATED POST 20.01 ###
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
@param uri - a URI, e.g. "tcp://0.0.0.0/0/80" [ipv4]
@@ -157,12 +208,13 @@
};
/** \brief Connect to a given URI
+ ### WILL BE DEPRECATED POST 20.01 ###
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
- @param client_queue_address - binary API client queue address. Used by
+ @param client_queue_address - binary API client queue address. Used by
local server when connect was redirected.
@param options - socket options, fifo sizes, etc. passed by vpp to the
- server when redirecting connects
+ server when redirecting connects
@param uri - a URI, e.g. "tcp4://0.0.0.0/0/80"
"tcp6://::/0/80" [ipv6], etc.
*/
@@ -175,6 +227,7 @@
};
/** \brief bidirectional disconnect API
+ ### WILL BE DEPRECATED POST 20.01 ###
@param client_index - opaque cookie to identify the sender
client to vpp direction only
@param context - sender context, to match reply w/ request
@@ -187,6 +240,7 @@
};
/** \brief bidirectional disconnect reply API
+ ### WILL BE DEPRECATED POST 20.01 ###
@param client_index - opaque cookie to identify the sender
client to vpp direction only
@param context - sender context, to match reply w/ request
@@ -200,13 +254,14 @@
};
/** \brief Bind to an ip:port pair for a given transport protocol
+ ### WILL BE DEPRECATED POST 20.01 ###
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
@param wrk_index - index of worker requesting the bind
@param vrf - bind namespace
@param is_ip4 - flag that is 1 if ip address family is IPv4
@param ip - ip address
- @param port - port
+ @param port - port
@param proto - protocol 0 - TCP 1 - UDP
@param options - socket options, fifo sizes, etc.
*/
@@ -222,7 +277,8 @@
u64 options[16];
};
-/** \brief Unbind
+/** \brief Unbind
+ ### WILL BE DEPRECATED POST 20.01 ###s
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
@param wrk_index - index of worker requesting the bind
@@ -236,16 +292,17 @@
};
/** \brief Connect to a remote peer
+ ### WILL BE DEPRECATED POST 20.01 ###
@param client_index - opaque cookie to identify the sender
@param context - sender context, to match reply w/ request
@param wrk_index - worker that requests the connect
- @param client_queue_address - client's API queue address. Non-zero when
+ @param client_queue_address - client's API queue address. Non-zero when
used to perform redirects
@param options - socket options, fifo sizes, etc. when doing redirects
@param vrf - connection namespace
@param is_ip4 - flag that is 1 if ip address family is IPv4
@param ip - ip address
- @param port - port
+ @param port - port
@param proto - protocol 0 - TCP 1 - UDP
@param hostname-len - length of hostname
@param hostname - destination's hostname. If present, used by protocols
@@ -269,6 +326,7 @@
};
/** \brief ask app to add a new cut-through registration
+ ### WILL BE DEPRECATED POST 20.01 ###
@param client_index - opaque cookie to identify the sender
client to vpp direction only
@param context - sender context, to match reply w/ request
@@ -314,8 +372,8 @@
@param app_event_queue_address - vpp event queue address of new worker
@param n_fds - number of fds exchanged
@param fd_flags - set of flags that indicate which fds are to be expected
- over the socket (set only if socket transport available)
- @param segment_name_length - length of segment name
+ over the socket (set only if socket transport available)
+ @param segment_name_length - length of segment name
@param segment_name - name of segment client needs to attach to
@param segment_handle - handle for segment
*/