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authorDave Barach <dave@barachs.net>2017-02-28 15:15:56 -0500
committerDamjan Marion <dmarion.lists@gmail.com>2017-03-01 20:25:48 +0000
commit68b0fb0c620c7451ef1a6380c43c39de6614db51 (patch)
treef4188fa09723152f3ebfcebbbe4cacad903e0cf1 /src/vnet/session/session_api.c
parentf869028740aaebeb0375077d4d84fa07a17fff1a (diff)
VPP-598: tcp stack initial commit
Change-Id: I49e5ce0aae6e4ff634024387ceaf7dbc432a0351 Signed-off-by: Dave Barach <dave@barachs.net> Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/session/session_api.c')
-rw-r--r--src/vnet/session/session_api.c821
1 files changed, 821 insertions, 0 deletions
diff --git a/src/vnet/session/session_api.c b/src/vnet/session/session_api.c
new file mode 100644
index 00000000000..9d068684636
--- /dev/null
+++ b/src/vnet/session/session_api.c
@@ -0,0 +1,821 @@
+/*
+ * Copyright (c) 2015-2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/vnet.h>
+#include <vlibmemory/api.h>
+#include <vnet/session/application.h>
+
+#include <vnet/vnet_msg_enum.h>
+#include "application_interface.h"
+
+#define vl_typedefs /* define message structures */
+#include <vnet/vnet_all_api_h.h>
+#undef vl_typedefs
+
+#define vl_endianfun /* define message structures */
+#include <vnet/vnet_all_api_h.h>
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_printfun
+#include <vnet/vnet_all_api_h.h>
+#undef vl_printfun
+
+#include <vlibapi/api_helper_macros.h>
+
+#define foreach_session_api_msg \
+_(MAP_ANOTHER_SEGMENT_REPLY, map_another_segment_reply) \
+_(BIND_URI, bind_uri) \
+_(UNBIND_URI, unbind_uri) \
+_(CONNECT_URI, connect_uri) \
+_(DISCONNECT_SESSION, disconnect_session) \
+_(DISCONNECT_SESSION_REPLY, disconnect_session_reply) \
+_(ACCEPT_SESSION_REPLY, accept_session_reply) \
+_(RESET_SESSION_REPLY, reset_session_reply) \
+_(BIND_SOCK, bind_sock) \
+_(UNBIND_SOCK, unbind_sock) \
+_(CONNECT_SOCK, connect_sock) \
+_(DISCONNECT_SOCK, disconnect_sock) \
+_(DISCONNECT_SOCK_REPLY, disconnect_sock_reply) \
+_(ACCEPT_SOCK_REPLY, accept_sock_reply) \
+_(RESET_SOCK_REPLY, reset_sock_reply) \
+
+static int
+send_add_segment_callback (u32 api_client_index, const u8 * segment_name,
+ u32 segment_size)
+{
+ vl_api_map_another_segment_t *mp;
+ unix_shared_memory_queue_t *q;
+
+ q = vl_api_client_index_to_input_queue (api_client_index);
+
+ if (!q)
+ return -1;
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_MAP_ANOTHER_SEGMENT);
+ mp->segment_size = segment_size;
+ strncpy ((char *) mp->segment_name, (char *) segment_name,
+ sizeof (mp->segment_name) - 1);
+
+ vl_msg_api_send_shmem (q, (u8 *) & mp);
+
+ return 0;
+}
+
+static int
+send_session_accept_uri_callback (stream_session_t * s)
+{
+ vl_api_accept_session_t *mp;
+ unix_shared_memory_queue_t *q, *vpp_queue;
+ application_t *server = application_get (s->app_index);
+
+ q = vl_api_client_index_to_input_queue (server->api_client_index);
+ vpp_queue = session_manager_get_vpp_event_queue (s->thread_index);
+
+ if (!q)
+ return -1;
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_ACCEPT_SESSION);
+
+ /* Note: session_type is the first octet in all types of sessions */
+
+ mp->accept_cookie = server->accept_cookie;
+ mp->server_rx_fifo = (u64) s->server_rx_fifo;
+ mp->server_tx_fifo = (u64) s->server_tx_fifo;
+ mp->session_thread_index = s->thread_index;
+ mp->session_index = s->session_index;
+ mp->session_type = s->session_type;
+ mp->vpp_event_queue_address = (u64) vpp_queue;
+ vl_msg_api_send_shmem (q, (u8 *) & mp);
+
+ return 0;
+}
+
+static void
+send_session_disconnect_uri_callback (stream_session_t * s)
+{
+ vl_api_disconnect_session_t *mp;
+ unix_shared_memory_queue_t *q;
+ application_t *app = application_get (s->app_index);
+
+ q = vl_api_client_index_to_input_queue (app->api_client_index);
+
+ if (!q)
+ return;
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_DISCONNECT_SESSION);
+
+ mp->session_thread_index = s->thread_index;
+ mp->session_index = s->session_index;
+ vl_msg_api_send_shmem (q, (u8 *) & mp);
+}
+
+static int
+send_session_connected_uri_callback (u32 api_client_index,
+ stream_session_t * s, u8 is_fail)
+{
+ vl_api_connect_uri_reply_t *mp;
+ unix_shared_memory_queue_t *q;
+ application_t *app = application_lookup (api_client_index);
+ u8 *seg_name;
+ unix_shared_memory_queue_t *vpp_queue;
+
+ q = vl_api_client_index_to_input_queue (app->api_client_index);
+
+ if (!q)
+ return -1;
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_CONNECT_URI_REPLY);
+ mp->context = app->api_context;
+ mp->retval = is_fail;
+ if (!is_fail)
+ {
+ vpp_queue = session_manager_get_vpp_event_queue (s->thread_index);
+ mp->server_rx_fifo = (u64) s->server_rx_fifo;
+ mp->server_tx_fifo = (u64) s->server_tx_fifo;
+ mp->session_thread_index = s->thread_index;
+ mp->session_index = s->session_index;
+ mp->session_type = s->session_type;
+ mp->vpp_event_queue_address = (u64) vpp_queue;
+ mp->client_event_queue_address = (u64) app->event_queue;
+
+ session_manager_get_segment_info (s->server_segment_index, &seg_name,
+ &mp->segment_size);
+ mp->segment_name_length = vec_len (seg_name);
+ if (mp->segment_name_length)
+ clib_memcpy (mp->segment_name, seg_name, mp->segment_name_length);
+ }
+
+ vl_msg_api_send_shmem (q, (u8 *) & mp);
+
+ /* Remove client if connect failed */
+ if (is_fail)
+ application_del (app);
+
+ return 0;
+}
+
+/**
+ * Redirect a connect_uri message to the indicated server.
+ * Only sent if the server has bound the related port with
+ * URI_OPTIONS_FLAGS_USE_FIFO
+ */
+static int
+redirect_connect_uri_callback (u32 server_api_client_index, void *mp_arg)
+{
+ vl_api_connect_uri_t *mp = mp_arg;
+ unix_shared_memory_queue_t *server_q, *client_q;
+ vlib_main_t *vm = vlib_get_main ();
+ f64 timeout = vlib_time_now (vm) + 0.5;
+ int rv = 0;
+
+ server_q = vl_api_client_index_to_input_queue (server_api_client_index);
+
+ if (!server_q)
+ {
+ rv = VNET_API_ERROR_INVALID_VALUE;
+ goto out;
+ }
+
+ client_q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (!client_q)
+ {
+ rv = VNET_API_ERROR_INVALID_VALUE_2;
+ goto out;
+ }
+
+ /* Tell the server the client's API queue address, so it can reply */
+ mp->client_queue_address = (u64) client_q;
+
+ /*
+ * Bounce message handlers MUST NOT block the data-plane.
+ * Spin waiting for the queue lock, but
+ */
+
+ while (vlib_time_now (vm) < timeout)
+ {
+ rv =
+ unix_shared_memory_queue_add (server_q, (u8 *) & mp, 1 /*nowait */ );
+ switch (rv)
+ {
+ /* correctly enqueued */
+ case 0:
+ return VNET_CONNECT_REDIRECTED;
+
+ /* continue spinning, wait for pthread_mutex_trylock to work */
+ case -1:
+ continue;
+
+ /* queue stuffed, drop the msg */
+ case -2:
+ rv = VNET_API_ERROR_QUEUE_FULL;
+ goto out;
+ }
+ }
+out:
+ /* Dispose of the message */
+ vl_msg_api_free (mp);
+ return rv;
+}
+
+static u64
+make_session_handle (stream_session_t * s)
+{
+ return (u64) s->session_index << 32 | (u64) s->thread_index;
+}
+
+static int
+send_session_accept_callback (stream_session_t * s)
+{
+ vl_api_accept_sock_t *mp;
+ unix_shared_memory_queue_t *q, *vpp_queue;
+ application_t *server = application_get (s->app_index);
+
+ q = vl_api_client_index_to_input_queue (server->api_client_index);
+ vpp_queue = session_manager_get_vpp_event_queue (s->thread_index);
+
+ if (!q)
+ return -1;
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_ACCEPT_SOCK);
+
+ /* Note: session_type is the first octet in all types of sessions */
+
+ mp->accept_cookie = server->accept_cookie;
+ mp->server_rx_fifo = (u64) s->server_rx_fifo;
+ mp->server_tx_fifo = (u64) s->server_tx_fifo;
+ mp->handle = make_session_handle (s);
+ mp->vpp_event_queue_address = (u64) vpp_queue;
+ vl_msg_api_send_shmem (q, (u8 *) & mp);
+
+ return 0;
+}
+
+static int
+send_session_connected_callback (u32 api_client_index, stream_session_t * s,
+ u8 is_fail)
+{
+ vl_api_connect_sock_reply_t *mp;
+ unix_shared_memory_queue_t *q;
+ application_t *app = application_lookup (api_client_index);
+ u8 *seg_name;
+ unix_shared_memory_queue_t *vpp_queue;
+
+ q = vl_api_client_index_to_input_queue (app->api_client_index);
+
+ if (!q)
+ return -1;
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_CONNECT_SOCK_REPLY);
+ mp->context = app->api_context;
+ mp->retval = is_fail;
+ if (!is_fail)
+ {
+ vpp_queue = session_manager_get_vpp_event_queue (s->thread_index);
+ mp->server_rx_fifo = (u64) s->server_rx_fifo;
+ mp->server_tx_fifo = (u64) s->server_tx_fifo;
+ mp->handle = make_session_handle (s);
+ mp->vpp_event_queue_address = (u64) vpp_queue;
+ mp->client_event_queue_address = (u64) app->event_queue;
+
+ session_manager_get_segment_info (s->server_segment_index, &seg_name,
+ &mp->segment_size);
+ mp->segment_name_length = vec_len (seg_name);
+ if (mp->segment_name_length)
+ clib_memcpy (mp->segment_name, seg_name, mp->segment_name_length);
+ }
+
+ vl_msg_api_send_shmem (q, (u8 *) & mp);
+
+ /* Remove client if connect failed */
+ if (is_fail)
+ application_del (app);
+
+ return 0;
+}
+
+static void
+send_session_disconnect_callback (stream_session_t * s)
+{
+ vl_api_disconnect_sock_t *mp;
+ unix_shared_memory_queue_t *q;
+ application_t *app = application_get (s->app_index);
+
+ q = vl_api_client_index_to_input_queue (app->api_client_index);
+
+ if (!q)
+ return;
+
+ mp = vl_msg_api_alloc (sizeof (*mp));
+ memset (mp, 0, sizeof (*mp));
+ mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_DISCONNECT_SOCK);
+
+ mp->handle = make_session_handle (s);
+ vl_msg_api_send_shmem (q, (u8 *) & mp);
+}
+
+/**
+ * Redirect a connect_uri message to the indicated server.
+ * Only sent if the server has bound the related port with
+ * URI_OPTIONS_FLAGS_USE_FIFO
+ */
+static int
+redirect_connect_callback (u32 server_api_client_index, void *mp_arg)
+{
+ vl_api_connect_sock_t *mp = mp_arg;
+ unix_shared_memory_queue_t *server_q, *client_q;
+ vlib_main_t *vm = vlib_get_main ();
+ f64 timeout = vlib_time_now (vm) + 0.5;
+ int rv = 0;
+
+ server_q = vl_api_client_index_to_input_queue (server_api_client_index);
+
+ if (!server_q)
+ {
+ rv = VNET_API_ERROR_INVALID_VALUE;
+ goto out;
+ }
+
+ client_q = vl_api_client_index_to_input_queue (mp->client_index);
+ if (!client_q)
+ {
+ rv = VNET_API_ERROR_INVALID_VALUE_2;
+ goto out;
+ }
+
+ /* Tell the server the client's API queue address, so it can reply */
+ mp->client_queue_address = (u64) client_q;
+
+ /*
+ * Bounce message handlers MUST NOT block the data-plane.
+ * Spin waiting for the queue lock, but
+ */
+
+ while (vlib_time_now (vm) < timeout)
+ {
+ rv =
+ unix_shared_memory_queue_add (server_q, (u8 *) & mp, 1 /*nowait */ );
+ switch (rv)
+ {
+ /* correctly enqueued */
+ case 0:
+ return VNET_CONNECT_REDIRECTED;
+
+ /* continue spinning, wait for pthread_mutex_trylock to work */
+ case -1:
+ continue;
+
+ /* queue stuffed, drop the msg */
+ case -2:
+ rv = VNET_API_ERROR_QUEUE_FULL;
+ goto out;
+ }
+ }
+out:
+ /* Dispose of the message */
+ vl_msg_api_free (mp);
+ return rv;
+}
+
+static session_cb_vft_t uri_session_cb_vft = {
+ .session_accept_callback = send_session_accept_uri_callback,
+ .session_disconnect_callback = send_session_disconnect_uri_callback,
+ .session_connected_callback = send_session_connected_uri_callback,
+ .add_segment_callback = send_add_segment_callback,
+ .redirect_connect_callback = redirect_connect_uri_callback
+};
+
+static session_cb_vft_t session_cb_vft = {
+ .session_accept_callback = send_session_accept_callback,
+ .session_disconnect_callback = send_session_disconnect_callback,
+ .session_connected_callback = send_session_connected_callback,
+ .add_segment_callback = send_add_segment_callback,
+ .redirect_connect_callback = redirect_connect_callback
+};
+
+static int
+api_session_not_valid (u32 session_index, u32 thread_index)
+{
+ session_manager_main_t *smm = vnet_get_session_manager_main ();
+ stream_session_t *pool;
+
+ if (thread_index >= vec_len (smm->sessions))
+ return VNET_API_ERROR_INVALID_VALUE;
+
+ pool = smm->sessions[thread_index];
+
+ if (pool_is_free_index (pool, session_index))
+ return VNET_API_ERROR_INVALID_VALUE_2;
+
+ return 0;
+}
+
+static void
+vl_api_bind_uri_t_handler (vl_api_bind_uri_t * mp)
+{
+ vl_api_bind_uri_reply_t *rmp;
+ vnet_bind_args_t _a, *a = &_a;
+ char segment_name[128];
+ u32 segment_name_length;
+ int rv;
+
+ _Static_assert (sizeof (u64) * SESSION_OPTIONS_N_OPTIONS <=
+ sizeof (mp->options),
+ "Out of options, fix api message definition");
+
+ segment_name_length = ARRAY_LEN (segment_name);
+
+ memset (a, 0, sizeof (*a));
+
+ a->uri = (char *) mp->uri;
+ a->api_client_index = mp->client_index;
+ a->options = mp->options;
+ a->segment_name = segment_name;
+ a->segment_name_length = segment_name_length;
+ a->session_cb_vft = &uri_session_cb_vft;
+
+ a->options[SESSION_OPTIONS_SEGMENT_SIZE] = mp->initial_segment_size;
+ a->options[SESSION_OPTIONS_ACCEPT_COOKIE] = mp->accept_cookie;
+ rv = vnet_bind_uri (a);
+
+ /* *INDENT-OFF* */
+ REPLY_MACRO2 (VL_API_BIND_URI_REPLY, ({
+ rmp->retval = rv;
+ if (!rv)
+ {
+ rmp->segment_name_length = 0;
+ /* $$$$ policy? */
+ rmp->segment_size = mp->initial_segment_size;
+ if (segment_name_length)
+ {
+ memcpy (rmp->segment_name, segment_name, segment_name_length);
+ rmp->segment_name_length = segment_name_length;
+ }
+ rmp->server_event_queue_address = a->server_event_queue_address;
+ }
+ }));
+ /* *INDENT-ON* */
+
+}
+
+static void
+vl_api_unbind_uri_t_handler (vl_api_unbind_uri_t * mp)
+{
+ vl_api_unbind_uri_reply_t *rmp;
+ int rv;
+
+ rv = vnet_unbind_uri ((char *) mp->uri, mp->client_index);
+
+ REPLY_MACRO (VL_API_UNBIND_URI_REPLY);
+}
+
+static void
+vl_api_connect_uri_t_handler (vl_api_connect_uri_t * mp)
+{
+ vnet_connect_args_t _a, *a = &_a;
+
+ a->uri = (char *) mp->uri;
+ a->api_client_index = mp->client_index;
+ a->api_context = mp->context;
+ a->options = mp->options;
+ a->session_cb_vft = &uri_session_cb_vft;
+ a->mp = mp;
+ vnet_connect_uri (a);
+}
+
+static void
+vl_api_disconnect_session_t_handler (vl_api_disconnect_session_t * mp)
+{
+ vl_api_disconnect_session_reply_t *rmp;
+ int rv;
+
+ rv = api_session_not_valid (mp->session_index, mp->session_thread_index);
+ if (!rv)
+ rv = vnet_disconnect_session (mp->client_index, mp->session_index,
+ mp->session_thread_index);
+
+ REPLY_MACRO (VL_API_DISCONNECT_SESSION_REPLY);
+}
+
+static void
+vl_api_disconnect_session_reply_t_handler (vl_api_disconnect_session_reply_t *
+ mp)
+{
+ if (api_session_not_valid (mp->session_index, mp->session_thread_index))
+ {
+ clib_warning ("Invalid session!");
+ return;
+ }
+
+ /* Client objected to disconnecting the session, log and continue */
+ if (mp->retval)
+ {
+ clib_warning ("client retval %d", mp->retval);
+ return;
+ }
+
+ /* Disconnect has been confirmed. Confirm close to transport */
+ vnet_disconnect_session (mp->client_index, mp->session_index,
+ mp->session_thread_index);
+}
+
+static void
+vl_api_reset_session_reply_t_handler (vl_api_reset_session_reply_t * mp)
+{
+ stream_session_t *s;
+
+ if (api_session_not_valid (mp->session_index, mp->session_thread_index))
+ {
+ clib_warning ("Invalid session!");
+ return;
+ }
+
+ /* Client objected to resetting the session, log and continue */
+ if (mp->retval)
+ {
+ clib_warning ("client retval %d", mp->retval);
+ return;
+ }
+
+ s = stream_session_get (mp->session_index, mp->session_thread_index);
+
+ /* This comes as a response to a reset, transport only waiting for
+ * confirmation to remove connection state, no need to disconnect */
+ stream_session_cleanup (s);
+}
+
+static void
+vl_api_accept_session_reply_t_handler (vl_api_accept_session_reply_t * mp)
+{
+ stream_session_t *s;
+ int rv;
+
+ if (api_session_not_valid (mp->session_index, mp->session_thread_index))
+ return;
+
+ s = stream_session_get (mp->session_index, mp->session_thread_index);
+ rv = mp->retval;
+
+ if (rv)
+ {
+ /* Server isn't interested, kill the session */
+ stream_session_disconnect (s);
+ return;
+ }
+
+ s->session_state = SESSION_STATE_READY;
+}
+
+static void
+vl_api_map_another_segment_reply_t_handler (vl_api_map_another_segment_reply_t
+ * mp)
+{
+ clib_warning ("not implemented");
+}
+
+static void
+vl_api_bind_sock_t_handler (vl_api_bind_sock_t * mp)
+{
+ vl_api_bind_sock_reply_t *rmp;
+ vnet_bind_args_t _a, *a = &_a;
+ char segment_name[128];
+ u32 segment_name_length;
+ int rv;
+
+ STATIC_ASSERT (sizeof (u64) * SESSION_OPTIONS_N_OPTIONS <=
+ sizeof (mp->options),
+ "Out of options, fix api message definition");
+
+ segment_name_length = ARRAY_LEN (segment_name);
+
+ memset (a, 0, sizeof (*a));
+
+ clib_memcpy (&a->tep.ip, mp->ip,
+ (mp->is_ip4 ? sizeof (ip4_address_t) :
+ sizeof (ip6_address_t)));
+ a->tep.is_ip4 = mp->is_ip4;
+ a->tep.port = mp->port;
+ a->tep.vrf = mp->vrf;
+
+ a->api_client_index = mp->client_index;
+ a->options = mp->options;
+ a->segment_name = segment_name;
+ a->segment_name_length = segment_name_length;
+ a->session_cb_vft = &session_cb_vft;
+
+ rv = vnet_bind_uri (a);
+
+ /* *INDENT-OFF* */
+ REPLY_MACRO2 (VL_API_BIND_SOCK_REPLY, ({
+ rmp->retval = rv;
+ if (!rv)
+ {
+ rmp->segment_name_length = 0;
+ rmp->segment_size = mp->options[SESSION_OPTIONS_SEGMENT_SIZE];
+ if (segment_name_length)
+ {
+ memcpy(rmp->segment_name, segment_name, segment_name_length);
+ rmp->segment_name_length = segment_name_length;
+ }
+ rmp->server_event_queue_address = a->server_event_queue_address;
+ }
+ }));
+ /* *INDENT-ON* */
+}
+
+static void
+vl_api_unbind_sock_t_handler (vl_api_unbind_sock_t * mp)
+{
+ vl_api_unbind_sock_reply_t *rmp;
+ vnet_unbind_args_t _a, *a = &_a;
+ int rv;
+
+ a->api_client_index = mp->client_index;
+ a->handle = mp->handle;
+
+ rv = vnet_unbind (a);
+
+ REPLY_MACRO (VL_API_UNBIND_SOCK_REPLY);
+}
+
+static void
+vl_api_connect_sock_t_handler (vl_api_connect_sock_t * mp)
+{
+ vnet_connect_args_t _a, *a = &_a;
+
+ clib_memcpy (&a->tep.ip, mp->ip,
+ (mp->is_ip4 ? sizeof (ip4_address_t) :
+ sizeof (ip6_address_t)));
+ a->tep.is_ip4 = mp->is_ip4;
+ a->tep.port = mp->port;
+ a->tep.vrf = mp->vrf;
+ a->options = mp->options;
+ a->session_cb_vft = &session_cb_vft;
+ a->api_context = mp->context;
+ a->mp = mp;
+
+ vnet_connect (a);
+}
+
+static void
+vl_api_disconnect_sock_t_handler (vl_api_disconnect_sock_t * mp)
+{
+ vnet_disconnect_args_t _a, *a = &_a;
+ vl_api_disconnect_sock_reply_t *rmp;
+ int rv;
+
+ a->api_client_index = mp->client_index;
+ a->handle = mp->handle;
+ rv = vnet_disconnect (a);
+
+ REPLY_MACRO (VL_API_DISCONNECT_SOCK_REPLY);
+}
+
+static void
+vl_api_disconnect_sock_reply_t_handler (vl_api_disconnect_sock_reply_t * mp)
+{
+ vnet_disconnect_args_t _a, *a = &_a;
+
+ /* Client objected to disconnecting the session, log and continue */
+ if (mp->retval)
+ {
+ clib_warning ("client retval %d", mp->retval);
+ return;
+ }
+
+ a->api_client_index = mp->client_index;
+ a->handle = mp->handle;
+
+ vnet_disconnect (a);
+}
+
+static void
+vl_api_reset_sock_reply_t_handler (vl_api_reset_sock_reply_t * mp)
+{
+ stream_session_t *s;
+ u32 session_index, thread_index;
+
+ /* Client objected to resetting the session, log and continue */
+ if (mp->retval)
+ {
+ clib_warning ("client retval %d", mp->retval);
+ return;
+ }
+
+ if (api_parse_session_handle (mp->handle, &session_index, &thread_index))
+ {
+ clib_warning ("Invalid handle");
+ return;
+ }
+
+ s = stream_session_get (session_index, thread_index);
+
+ /* This comes as a response to a reset, transport only waiting for
+ * confirmation to remove connection state, no need to disconnect */
+ stream_session_cleanup (s);
+}
+
+static void
+vl_api_accept_sock_reply_t_handler (vl_api_accept_sock_reply_t * mp)
+{
+ stream_session_t *s;
+ u32 session_index, thread_index;
+
+ if (api_parse_session_handle (mp->handle, &session_index, &thread_index))
+ {
+ clib_warning ("Invalid handle");
+ return;
+ }
+ s = stream_session_get (session_index, thread_index);
+
+ if (mp->retval)
+ {
+ /* Server isn't interested, kill the session */
+ stream_session_disconnect (s);
+ return;
+ }
+
+ s->session_state = SESSION_STATE_READY;
+}
+
+#define vl_msg_name_crc_list
+#include <vnet/vnet_all_api_h.h>
+#undef vl_msg_name_crc_list
+
+static void
+setup_message_id_table (api_main_t * am)
+{
+#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
+ foreach_vl_msg_name_crc_session;
+#undef _
+}
+
+/*
+ * session_api_hookup
+ * Add uri's API message handlers to the table.
+ * vlib has alread mapped shared memory and
+ * added the client registration handlers.
+ * See .../open-repo/vlib/memclnt_vlib.c:memclnt_process()
+ */
+static clib_error_t *
+session_api_hookup (vlib_main_t * vm)
+{
+ api_main_t *am = &api_main;
+
+#define _(N,n) \
+ vl_msg_api_set_handlers(VL_API_##N, #n, \
+ vl_api_##n##_t_handler, \
+ vl_noop_handler, \
+ vl_api_##n##_t_endian, \
+ vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_session_api_msg;
+#undef _
+
+ /*
+ * Messages which bounce off the data-plane to
+ * an API client. Simply tells the message handling infra not
+ * to free the message.
+ *
+ * Bounced message handlers MUST NOT block the data plane
+ */
+ am->message_bounce[VL_API_CONNECT_URI] = 1;
+ am->message_bounce[VL_API_CONNECT_SOCK] = 1;
+
+ /*
+ * Set up the (msg_name, crc, message-id) table
+ */
+ setup_message_id_table (am);
+
+ return 0;
+}
+
+VLIB_API_INIT_FUNCTION (session_api_hookup);
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */