/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Copyright (c) 2016-2019 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:
#ifndef __included_uri_h__
#define __included_uri_h__
-#include <vlib/vlib.h>
-#include <vnet/vnet.h>
-#include <svm/svm_fifo_segment.h>
-#include <vnet/session/session.h>
-#include <vnet/session/application.h>
-#include <vnet/session/transport.h>
+#include <vlibmemory/api.h>
+#include <svm/message_queue.h>
+#include <vnet/session/session_types.h>
+#include <vnet/tls/tls_test.h>
+#include <svm/fifo_segment.h>
-typedef struct _vnet_app_attach_args_t
+typedef struct certificate_
{
- /** Binary API client index */
- u32 api_client_index;
+ u32 *app_interests; /* vec of application index asking for deletion cb */
+ u32 cert_key_index; /* index in cert & key pool */
+ u8 *key;
+ u8 *cert;
+} app_cert_key_pair_t;
- /** Application and segment manager options */
- u64 *options;
+typedef struct session_cb_vft_
+{
+ /** Notify server of new segment */
+ int (*add_segment_callback) (u32 app_wrk_index, u64 segment_handle);
- /* Namespace id */
- u8 *namespace_id;
+ /** Notify server of new segment */
+ int (*del_segment_callback) (u32 app_wrk_index, u64 segment_handle);
- /** Session to application callback functions */
- session_cb_vft_t *session_cb_vft;
+ /** Notify server of newly accepted session */
+ int (*session_accept_callback) (session_t * new_session);
- /*
- * Results
- */
- ssvm_private_t *segment;
- u64 app_event_queue_address;
- u32 app_index;
+ /** Connection request callback */
+ int (*session_connected_callback) (u32 app_wrk_index, u32 opaque,
+ session_t * s, u8 code);
+
+ /** Notify app that session is closing */
+ void (*session_disconnect_callback) (session_t * s);
+
+ /** Notify app that transport is closed */
+ void (*session_transport_closed_callback) (session_t * s);
+
+ /** Notify app that session or transport are about to be removed */
+ void (*session_cleanup_callback) (session_t * s, session_cleanup_ntf_t ntf);
+
+ /** Notify app that session was reset */
+ void (*session_reset_callback) (session_t * s);
+
+ /** Notify app that session pool migration happened */
+ void (*session_migrate_callback) (session_t * s, session_handle_t new_sh);
+
+ /** Direct RX callback for built-in application */
+ int (*builtin_app_rx_callback) (session_t * session);
+
+ /** Direct TX callback for built-in application */
+ int (*builtin_app_tx_callback) (session_t * session);
+
+ /** Cert and key pair delete notification */
+ int (*app_cert_key_pair_delete_callback) (app_cert_key_pair_t * ckpair);
+
+ /** Delegate fifo-tuning-logic to application */
+ int (*fifo_tuning_callback) (session_t * s, svm_fifo_t * f,
+ session_ft_action_t act, u32 bytes);
+
+} session_cb_vft_t;
+
+#define foreach_app_init_args \
+ _(u32, api_client_index) \
+ _(u8 *, name) \
+ _(u64 *, options) \
+ _(u8 *, namespace_id) \
+ _(session_cb_vft_t *, session_cb_vft) \
+ _(u32, app_index) \
+
+typedef struct _vnet_app_attach_args_t
+{
+#define _(_type, _name) _type _name;
+ foreach_app_init_args
+#undef _
+ ssvm_private_t * segment;
+ svm_msg_q_t *app_evt_q;
+ u64 segment_handle;
} vnet_app_attach_args_t;
typedef struct _vnet_app_detach_args_t
{
u32 app_index;
+ u32 api_client_index;
} vnet_app_detach_args_t;
typedef struct _vnet_bind_args_t
{
union
{
- char *uri;
+ session_endpoint_cfg_t sep_ext;
session_endpoint_t sep;
+ char *uri;
};
u32 app_index;
+ u32 wrk_map_index;
/*
* Results
u32 segment_name_length;
u64 server_event_queue_address;
u64 handle;
-} vnet_bind_args_t;
+} vnet_listen_args_t;
-typedef struct _vnet_unbind_args_t
+typedef struct _vnet_unlisten_args_t
{
union
{
char *uri;
- u64 handle;
+ u64 handle; /**< Session handle */
};
- u32 app_index;
-} vnet_unbind_args_t;
+ u32 app_index; /**< Owning application index */
+ u32 wrk_map_index; /**< App's local pool worker index */
+} vnet_unlisten_args_t;
typedef struct _vnet_connect_args
{
- char *uri;
- session_endpoint_t sep;
+ union
+ {
+ session_endpoint_cfg_t sep_ext;
+ session_endpoint_t sep;
+ char *uri;
+ };
u32 app_index;
+ u32 wrk_map_index;
u32 api_context;
- /* Used for redirects */
- void *mp;
- u64 session_handle;
+ session_handle_t session_handle;
} vnet_connect_args_t;
typedef struct _vnet_disconnect_args_t
{
- u64 handle;
+ session_handle_t handle;
u32 app_index;
} vnet_disconnect_args_t;
+typedef struct _vnet_application_add_tls_cert_args_t
+{
+ u32 app_index;
+ u8 *cert;
+} vnet_app_add_tls_cert_args_t;
+
+typedef struct _vnet_application_add_tls_key_args_t
+{
+ u32 app_index;
+ u8 *key;
+} vnet_app_add_tls_key_args_t;
+
+typedef enum crypto_engine_type_
+{
+ CRYPTO_ENGINE_NONE,
+ CRYPTO_ENGINE_OPENSSL,
+ CRYPTO_ENGINE_MBEDTLS,
+ CRYPTO_ENGINE_VPP,
+ CRYPTO_ENGINE_PICOTLS,
+ CRYPTO_ENGINE_LAST = CRYPTO_ENGINE_PICOTLS,
+} crypto_engine_type_t;
+
+typedef struct _vnet_app_add_cert_key_pair_args_
+{
+ u8 *cert;
+ u8 *key;
+ u32 index;
+} vnet_app_add_cert_key_pair_args_t;
+
+typedef struct crypto_ctx_
+{
+ u32 ctx_index; /**< index in crypto context pool */
+ u32 n_subscribers; /**< refcount of sessions using said context */
+ u32 ckpair_index; /**< certificate & key */
+ u8 crypto_engine;
+ void *data; /**< protocol specific data */
+} crypto_context_t;
+
/* Application attach options */
typedef enum
{
APP_OPTIONS_NAMESPACE_SECRET,
APP_OPTIONS_PROXY_TRANSPORT,
APP_OPTIONS_ACCEPT_COOKIE,
+ APP_OPTIONS_TLS_ENGINE,
+ APP_OPTIONS_MAX_FIFO_SIZE,
+ APP_OPTIONS_HIGH_WATERMARK,
+ APP_OPTIONS_LOW_WATERMARK,
+ APP_OPTIONS_PCT_FIRST_ALLOC,
APP_OPTIONS_N_OPTIONS
} app_attach_options_index_t;
_(ACCEPT_REDIRECT, "Use FIFO with redirects") \
_(ADD_SEGMENT, "Add segment and signal app if needed") \
_(IS_BUILTIN, "Application is builtin") \
- _(IS_PROXY, "Application is proxying") \
+ _(IS_TRANSPORT_APP, "Application is a transport proto") \
+ _(IS_PROXY, "Application is proxying") \
_(USE_GLOBAL_SCOPE, "App can use global session scope") \
- _(USE_LOCAL_SCOPE, "App can use local session scope")
+ _(USE_LOCAL_SCOPE, "App can use local session scope") \
+ _(EVT_MQ_USE_EVENTFD, "Use eventfds for signaling") \
typedef enum _app_options
{
#undef _
} app_options_flags_t;
-clib_error_t *vnet_application_attach (vnet_app_attach_args_t * a);
-int vnet_application_detach (vnet_app_detach_args_t * a);
+#define foreach_fd_type \
+ _(VPP_MQ_SEGMENT, "Fd for vpp's event mq segment") \
+ _(MEMFD_SEGMENT, "Fd for memfd segment") \
+ _(MQ_EVENTFD, "Event fd used by message queue") \
+ _(VPP_MQ_EVENTFD, "Event fd used by vpp's message queue") \
+
+typedef enum session_fd_type_
+{
+#define _(sym, str) SESSION_FD_##sym,
+ foreach_fd_type
+#undef _
+ SESSION_N_FD_TYPE
+} session_fd_type_t;
+
+typedef enum session_fd_flag_
+{
+#define _(sym, str) SESSION_FD_F_##sym = 1 << SESSION_FD_##sym,
+ foreach_fd_type
+#undef _
+} session_fd_flag_t;
+
+int parse_uri (char *uri, session_endpoint_cfg_t * sep);
+int vnet_bind_uri (vnet_listen_args_t *);
+int vnet_unbind_uri (vnet_unlisten_args_t * a);
+int vnet_connect_uri (vnet_connect_args_t * a);
-int vnet_bind_uri (vnet_bind_args_t *);
-int vnet_unbind_uri (vnet_unbind_args_t * a);
-clib_error_t *vnet_connect_uri (vnet_connect_args_t * a);
+int vnet_application_attach (vnet_app_attach_args_t * a);
+int vnet_application_detach (vnet_app_detach_args_t * a);
+int vnet_listen (vnet_listen_args_t * a);
+int vnet_connect (vnet_connect_args_t * a);
+int vnet_unlisten (vnet_unlisten_args_t * a);
int vnet_disconnect_session (vnet_disconnect_args_t * a);
-clib_error_t *vnet_bind (vnet_bind_args_t * a);
-clib_error_t *vnet_connect (vnet_connect_args_t * a);
-clib_error_t *vnet_unbind (vnet_unbind_args_t * a);
+clib_error_t *vnet_app_add_tls_cert (vnet_app_add_tls_cert_args_t * a);
+clib_error_t *vnet_app_add_tls_key (vnet_app_add_tls_key_args_t * a);
+int vnet_app_add_cert_key_pair (vnet_app_add_cert_key_pair_args_t * a);
+int vnet_app_del_cert_key_pair (u32 index);
+/** Ask for app cb on pair deletion */
+int vnet_app_add_cert_key_interest (u32 index, u32 app_index);
+
+typedef struct app_session_transport_
+{
+ ip46_address_t rmt_ip; /**< remote ip */
+ ip46_address_t lcl_ip; /**< local ip */
+ u16 rmt_port; /**< remote port (network order) */
+ u16 lcl_port; /**< local port (network order) */
+ u8 is_ip4; /**< set if uses ip4 networking */
+} app_session_transport_t;
+
+#define foreach_app_session_field \
+ _(svm_fifo_t, *rx_fifo) /**< rx fifo */ \
+ _(svm_fifo_t, *tx_fifo) /**< tx fifo */ \
+ _(session_type_t, session_type) /**< session type */ \
+ _(volatile u8, session_state) /**< session state */ \
+ _(u32, session_index) /**< index in owning pool */ \
+ _(app_session_transport_t, transport) /**< transport info */ \
+ _(svm_msg_q_t, *vpp_evt_q) /**< vpp event queue */ \
+ _(u8, is_dgram) /**< flag for dgram mode */ \
+
+typedef struct
+{
+#define _(type, name) type name;
+ foreach_app_session_field
+#undef _
+} app_session_t;
+
+typedef struct session_listen_msg_
+{
+ u32 client_index;
+ u32 context; /* Not needed but keeping it for compatibility with bapi */
+ u32 wrk_index;
+ u32 vrf;
+ u16 port;
+ u8 proto;
+ u8 is_ip4;
+ ip46_address_t ip;
+ u32 ckpair_index;
+ u8 crypto_engine;
+} __clib_packed session_listen_msg_t;
+
+STATIC_ASSERT (sizeof (session_listen_msg_t) <= SESSION_CTRL_MSG_MAX_SIZE,
+ "msg too large");
+
+typedef struct session_listen_uri_msg_
+{
+ u32 client_index;
+ u32 context;
+ u8 uri[56];
+} __clib_packed session_listen_uri_msg_t;
+
+STATIC_ASSERT (sizeof (session_listen_uri_msg_t) <= SESSION_CTRL_MSG_MAX_SIZE,
+ "msg too large");
+
+typedef struct session_bound_msg_
+{
+ u32 context;
+ u64 handle;
+ i32 retval;
+ u8 lcl_is_ip4;
+ u8 lcl_ip[16];
+ u16 lcl_port;
+ uword rx_fifo;
+ uword tx_fifo;
+ uword vpp_evt_q;
+ u32 segment_size;
+ u8 segment_name_length;
+ u8 segment_name[128];
+} __clib_packed session_bound_msg_t;
+
+typedef struct session_unlisten_msg_
+{
+ u32 client_index;
+ u32 context;
+ u32 wrk_index;
+ session_handle_t handle;
+} __clib_packed session_unlisten_msg_t;
+
+typedef struct session_unlisten_reply_msg_
+{
+ u32 context;
+ u64 handle;
+ i32 retval;
+} __clib_packed session_unlisten_reply_msg_t;
+
+typedef struct session_accepted_msg_
+{
+ u32 context;
+ u64 listener_handle;
+ u64 handle;
+ uword server_rx_fifo;
+ uword server_tx_fifo;
+ u64 segment_handle;
+ uword vpp_event_queue_address;
+ transport_endpoint_t rmt;
+ u8 flags;
+} __clib_packed session_accepted_msg_t;
+
+typedef struct session_accepted_reply_msg_
+{
+ u32 context;
+ i32 retval;
+ u64 handle;
+} __clib_packed session_accepted_reply_msg_t;
+
+typedef struct session_connect_msg_
+{
+ u32 client_index;
+ u32 context;
+ u32 wrk_index;
+ u32 vrf;
+ u16 port;
+ u8 proto;
+ u8 is_ip4;
+ ip46_address_t ip;
+ ip46_address_t lcl_ip;
+ u8 hostname_len;
+ u8 hostname[16];
+ u64 parent_handle;
+ u32 ckpair_index;
+ u8 crypto_engine;
+ u8 flags;
+} __clib_packed session_connect_msg_t;
+
+STATIC_ASSERT (sizeof (session_connect_msg_t) <= SESSION_CTRL_MSG_MAX_SIZE,
+ "msg too large");
+
+typedef struct session_connect_uri_msg_
+{
+ u32 client_index;
+ u32 context;
+ u8 uri[56];
+} __clib_packed session_connect_uri_msg_t;
+
+STATIC_ASSERT (sizeof (session_connect_uri_msg_t) <=
+ SESSION_CTRL_MSG_MAX_SIZE, "msg too large");
+
+typedef struct session_connected_msg_
+{
+ u32 context;
+ i32 retval;
+ u64 handle;
+ uword server_rx_fifo;
+ uword server_tx_fifo;
+ u64 segment_handle;
+ uword ct_rx_fifo;
+ uword ct_tx_fifo;
+ u64 ct_segment_handle;
+ uword vpp_event_queue_address;
+ u32 segment_size;
+ u8 segment_name_length;
+ u8 segment_name[64];
+ transport_endpoint_t lcl;
+} __clib_packed session_connected_msg_t;
+
+typedef struct session_disconnect_msg_
+{
+ u32 client_index;
+ u32 context;
+ session_handle_t handle;
+} __clib_packed session_disconnect_msg_t;
+
+typedef struct session_disconnected_msg_
+{
+ u32 client_index;
+ u32 context;
+ u64 handle;
+} __clib_packed session_disconnected_msg_t;
+
+typedef struct session_disconnected_reply_msg_
+{
+ u32 context;
+ i32 retval;
+ u64 handle;
+} __clib_packed session_disconnected_reply_msg_t;
+
+typedef struct session_reset_msg_
+{
+ u32 client_index;
+ u32 context;
+ u64 handle;
+} __clib_packed session_reset_msg_t;
+
+typedef struct session_reset_reply_msg_
+{
+ u32 context;
+ i32 retval;
+ u64 handle;
+} __clib_packed session_reset_reply_msg_t;
+
+typedef struct session_req_worker_update_msg_
+{
+ u64 session_handle;
+} __clib_packed session_req_worker_update_msg_t;
+
+/* NOTE: using u16 for wrk indices because message needs to fit in 18B */
+typedef struct session_worker_update_msg_
+{
+ u32 client_index;
+ u16 wrk_index;
+ u16 req_wrk_index;
+ u64 handle;
+} __clib_packed session_worker_update_msg_t;
+
+typedef struct session_worker_update_reply_msg_
+{
+ u64 handle;
+ uword rx_fifo;
+ uword tx_fifo;
+ u64 segment_handle;
+} __clib_packed session_worker_update_reply_msg_t;
+
+typedef struct session_app_detach_msg_
+{
+ u32 client_index;
+ u32 context;
+} session_app_detach_msg_t;
+
+typedef struct app_map_another_segment_msg_
+{
+ u32 client_index;
+ u32 context;
+ u8 fd_flags;
+ u32 segment_size;
+ u8 segment_name[128];
+ u64 segment_handle;
+} session_app_add_segment_msg_t;
+
+typedef struct app_unmap_segment_msg_
+{
+ u32 client_index;
+ u32 context;
+ u64 segment_handle;
+} session_app_del_segment_msg_t;
+
+typedef struct session_migrate_msg_
+{
+ uword vpp_evt_q;
+ session_handle_t handle;
+ session_handle_t new_handle;
+ u32 vpp_thread_index;
+} __clib_packed session_migrated_msg_t;
+
+typedef struct session_cleanup_msg_
+{
+ session_handle_t handle;
+} __clib_packed session_cleanup_msg_t;
-int
-api_parse_session_handle (u64 handle, u32 * session_index,
- u32 * thread_index);
+typedef struct app_session_event_
+{
+ svm_msg_q_msg_t msg;
+ session_event_t *evt;
+} __clib_packed app_session_evt_t;
+
+static inline void
+app_alloc_ctrl_evt_to_vpp (svm_msg_q_t * mq, app_session_evt_t * app_evt,
+ u8 evt_type)
+{
+ svm_msg_q_lock_and_alloc_msg_w_ring (mq,
+ SESSION_MQ_CTRL_EVT_RING,
+ SVM_Q_WAIT, &app_evt->msg);
+ app_evt->evt = svm_msg_q_msg_data (mq, &app_evt->msg);
+ clib_memset (app_evt->evt, 0, sizeof (*app_evt->evt));
+ app_evt->evt->event_type = evt_type;
+}
+
+static inline void
+app_send_ctrl_evt_to_vpp (svm_msg_q_t * mq, app_session_evt_t * app_evt)
+{
+ svm_msg_q_add_and_unlock (mq, &app_evt->msg);
+}
+
+/**
+ * Send fifo io event to vpp worker thread
+ *
+ * Because there may be multiple writers to one of vpp's queues, this
+ * protects message allocation and enqueueing.
+ *
+ * @param mq vpp message queue
+ * @param f fifo for which the event is sent
+ * @param evt_type type of event
+ * @param noblock flag to indicate is request is blocking or not
+ * @return 0 if success, negative integer otherwise
+ */
+static inline int
+app_send_io_evt_to_vpp (svm_msg_q_t * mq, u32 session_index, u8 evt_type,
+ u8 noblock)
+{
+ session_event_t *evt;
+ svm_msg_q_msg_t msg;
+
+ if (noblock)
+ {
+ if (svm_msg_q_try_lock (mq))
+ return -1;
+ if (PREDICT_FALSE (svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING)))
+ {
+ svm_msg_q_unlock (mq);
+ return -2;
+ }
+ msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
+ evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
+ evt->session_index = session_index;
+ evt->event_type = evt_type;
+ svm_msg_q_add_and_unlock (mq, &msg);
+ return 0;
+ }
+ else
+ {
+ svm_msg_q_lock (mq);
+ while (svm_msg_q_ring_is_full (mq, SESSION_MQ_IO_EVT_RING)
+ || svm_msg_q_is_full (mq))
+ svm_msg_q_wait (mq);
+ msg = svm_msg_q_alloc_msg_w_ring (mq, SESSION_MQ_IO_EVT_RING);
+ evt = (session_event_t *) svm_msg_q_msg_data (mq, &msg);
+ evt->session_index = session_index;
+ evt->event_type = evt_type;
+ svm_msg_q_add_and_unlock (mq, &msg);
+ return 0;
+ }
+}
+
+always_inline int
+app_send_dgram_raw (svm_fifo_t * f, app_session_transport_t * at,
+ svm_msg_q_t * vpp_evt_q, u8 * data, u32 len, u8 evt_type,
+ u8 do_evt, u8 noblock)
+{
+ u32 max_enqueue, actual_write;
+ session_dgram_hdr_t hdr;
+ int rv;
+
+ max_enqueue = svm_fifo_max_enqueue_prod (f);
+ if (max_enqueue <= sizeof (session_dgram_hdr_t))
+ return 0;
+
+ max_enqueue -= sizeof (session_dgram_hdr_t);
+ actual_write = clib_min (len, max_enqueue);
+ hdr.data_length = actual_write;
+ hdr.data_offset = 0;
+ clib_memcpy_fast (&hdr.rmt_ip, &at->rmt_ip, sizeof (ip46_address_t));
+ hdr.is_ip4 = at->is_ip4;
+ hdr.rmt_port = at->rmt_port;
+ clib_memcpy_fast (&hdr.lcl_ip, &at->lcl_ip, sizeof (ip46_address_t));
+ hdr.lcl_port = at->lcl_port;
+ rv = svm_fifo_enqueue (f, sizeof (hdr), (u8 *) & hdr);
+ ASSERT (rv == sizeof (hdr));
+
+ rv = svm_fifo_enqueue (f, actual_write, data);
+ if (do_evt)
+ {
+ if (rv > 0 && svm_fifo_set_event (f))
+ app_send_io_evt_to_vpp (vpp_evt_q, f->master_session_index, evt_type,
+ noblock);
+ }
+ ASSERT (rv);
+ return rv;
+}
+
+always_inline int
+app_send_dgram (app_session_t * s, u8 * data, u32 len, u8 noblock)
+{
+ return app_send_dgram_raw (s->tx_fifo, &s->transport, s->vpp_evt_q, data,
+ len, SESSION_IO_EVT_TX, 1 /* do_evt */ ,
+ noblock);
+}
+
+always_inline int
+app_send_stream_raw (svm_fifo_t * f, svm_msg_q_t * vpp_evt_q, u8 * data,
+ u32 len, u8 evt_type, u8 do_evt, u8 noblock)
+{
+ int rv;
+
+ rv = svm_fifo_enqueue (f, len, data);
+ if (do_evt)
+ {
+ if (rv > 0 && svm_fifo_set_event (f))
+ app_send_io_evt_to_vpp (vpp_evt_q, f->master_session_index, evt_type,
+ noblock);
+ }
+ return rv;
+}
+
+always_inline int
+app_send_stream (app_session_t * s, u8 * data, u32 len, u8 noblock)
+{
+ return app_send_stream_raw (s->tx_fifo, s->vpp_evt_q, data, len,
+ SESSION_IO_EVT_TX, 1 /* do_evt */ , noblock);
+}
+
+always_inline int
+app_send (app_session_t * s, u8 * data, u32 len, u8 noblock)
+{
+ if (s->is_dgram)
+ return app_send_dgram (s, data, len, noblock);
+ return app_send_stream (s, data, len, noblock);
+}
+
+always_inline int
+app_recv_dgram_raw (svm_fifo_t * f, u8 * buf, u32 len,
+ app_session_transport_t * at, u8 clear_evt, u8 peek)
+{
+ session_dgram_pre_hdr_t ph;
+ u32 max_deq;
+ int rv;
+
+ max_deq = svm_fifo_max_dequeue_cons (f);
+ if (max_deq < sizeof (session_dgram_hdr_t))
+ {
+ if (clear_evt)
+ svm_fifo_unset_event (f);
+ return 0;
+ }
+
+ if (clear_evt)
+ svm_fifo_unset_event (f);
+
+ svm_fifo_peek (f, 0, sizeof (ph), (u8 *) & ph);
+ ASSERT (ph.data_length >= ph.data_offset);
+ if (!ph.data_offset)
+ svm_fifo_peek (f, sizeof (ph), sizeof (*at), (u8 *) at);
+ len = clib_min (len, ph.data_length - ph.data_offset);
+ rv = svm_fifo_peek (f, ph.data_offset + SESSION_CONN_HDR_LEN, len, buf);
+ if (peek)
+ return rv;
+ ph.data_offset += rv;
+ if (ph.data_offset == ph.data_length)
+ svm_fifo_dequeue_drop (f, ph.data_length + SESSION_CONN_HDR_LEN);
+ else
+ svm_fifo_overwrite_head (f, (u8 *) & ph, sizeof (ph));
+ return rv;
+}
+
+always_inline int
+app_recv_dgram (app_session_t * s, u8 * buf, u32 len)
+{
+ return app_recv_dgram_raw (s->rx_fifo, buf, len, &s->transport, 1, 0);
+}
+
+always_inline int
+app_recv_stream_raw (svm_fifo_t * f, u8 * buf, u32 len, u8 clear_evt, u8 peek)
+{
+ if (clear_evt)
+ svm_fifo_unset_event (f);
+
+ if (peek)
+ return svm_fifo_peek (f, 0, len, buf);
+
+ return svm_fifo_dequeue (f, len, buf);
+}
+
+always_inline int
+app_recv_stream (app_session_t * s, u8 * buf, u32 len)
+{
+ return app_recv_stream_raw (s->rx_fifo, buf, len, 1, 0);
+}
+
+always_inline int
+app_recv (app_session_t * s, u8 * data, u32 len)
+{
+ if (s->is_dgram)
+ return app_recv_dgram (s, data, len);
+ return app_recv_stream (s, data, len);
+}
#endif /* __included_uri_h__ */
Code Review / vpp.git / blobdiff