diff options
Diffstat (limited to 'src/vnet/session/application_interface.h')
| -rw-r--r-- | src/vnet/session/application_interface.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/src/vnet/session/application_interface.h b/src/vnet/session/application_interface.h index 5dc237f6e7b..5fd218533dc 100644 --- a/src/vnet/session/application_interface.h +++ b/src/vnet/session/application_interface.h @@ -173,6 +173,163 @@ extern const u32 test_srv_crt_rsa_len; extern const char test_srv_key_rsa[]; extern const u32 test_srv_key_rsa_len; +typedef struct app_session_transport_ +{ + ip46_address_t rmt_ip; /**< remote ip */ + ip46_address_t lcl_ip; /**< local ip */ + u16 rmt_port; /**< remote port */ + u16 lcl_port; /**< local port */ + u8 is_ip4; /**< set if uses ip4 networking */ +} app_session_transport_t; + +typedef struct app_session_ +{ + 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_queue_t *vpp_evt_q; /**< vpp event queue for session */ + u8 is_dgram; /**< set if it works in dgram mode */ +} app_session_t; + +always_inline int +app_send_dgram_raw (svm_fifo_t * f, app_session_transport_t * at, + svm_queue_t * vpp_evt_q, u8 * data, u32 len, u8 noblock) +{ + u32 max_enqueue, actual_write; + session_dgram_hdr_t hdr; + session_fifo_event_t evt; + int rv; + + max_enqueue = svm_fifo_max_enqueue (f); + if (svm_fifo_max_enqueue (f) <= 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 (&hdr.rmt_ip, &at->rmt_ip, sizeof (ip46_address_t)); + hdr.is_ip4 = at->is_ip4; + hdr.rmt_port = at->rmt_port; + clib_memcpy (&hdr.lcl_ip, &at->lcl_ip, sizeof (ip46_address_t)); + hdr.lcl_port = at->lcl_port; + rv = svm_fifo_enqueue_nowait (f, sizeof (hdr), (u8 *) & hdr); + if (rv <= 0) + return 0; + + ASSERT (rv == sizeof (hdr)); + + if ((rv = svm_fifo_enqueue_nowait (f, actual_write, data)) > 0) + { + if (svm_fifo_set_event (f)) + { + evt.fifo = f; + evt.event_type = FIFO_EVENT_APP_TX; + svm_queue_add (vpp_evt_q, (u8 *) & evt, noblock); + } + } + 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, noblock); +} + +always_inline int +app_send_stream_raw (svm_fifo_t * f, svm_queue_t * vpp_evt_q, u8 * data, + u32 len, u8 noblock) +{ + session_fifo_event_t evt; + int rv; + + if ((rv = svm_fifo_enqueue_nowait (f, len, data)) > 0) + { + if (svm_fifo_set_event (f)) + { + evt.fifo = f; + evt.event_type = FIFO_EVENT_APP_TX; + svm_queue_add (vpp_evt_q, (u8 *) & evt, 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, 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) +{ + session_dgram_pre_hdr_t ph; + u32 max_deq; + int rv; + + if (clear_evt) + svm_fifo_unset_event (f); + max_deq = svm_fifo_max_dequeue (f); + if (max_deq < sizeof (session_dgram_hdr_t)) + return 0; + + 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); + 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); +} + +always_inline int +app_recv_stream_raw (svm_fifo_t * f, u8 * buf, u32 len, u8 clear_evt) +{ + if (clear_evt) + svm_fifo_unset_event (f); + return svm_fifo_dequeue_nowait (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); +} + +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__ */ /* |