2 * Copyright (c) 2016-2019 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #ifndef VNET_VNET_URI_TRANSPORT_TYPES_H_
17 #define VNET_VNET_URI_TRANSPORT_TYPES_H_
19 #include <vnet/vnet.h>
20 #include <vnet/ip/ip.h>
21 #include <vnet/tcp/tcp_debug.h>
22 #include <vppinfra/bihash_24_8.h>
24 #define TRANSPORT_MAX_HDRS_LEN 140 /* Max number of bytes for headers */
26 typedef enum transport_dequeue_type_
28 TRANSPORT_TX_PEEK, /**< reliable transport protos */
29 TRANSPORT_TX_DEQUEUE, /**< unreliable transport protos */
30 TRANSPORT_TX_INTERNAL, /**< apps acting as transports */
31 TRANSPORT_TX_DGRAM, /**< datagram mode */
33 } transport_tx_fn_type_t;
35 typedef enum transport_service_type_
37 TRANSPORT_SERVICE_VC, /**< virtual circuit service */
38 TRANSPORT_SERVICE_CL, /**< connectionless service */
39 TRANSPORT_SERVICE_APP, /**< app transport service */
41 } transport_service_type_t;
43 typedef enum transport_connection_flags_
45 TRANSPORT_CONNECTION_F_IS_TX_PACED = 1 << 0,
47 * Don't register connection in lookup. Does not apply to local apps
48 * and transports using the network layer (udp/tcp)
50 TRANSPORT_CONNECTION_F_NO_LOOKUP = 1 << 1,
52 * Connection descheduled by the session layer.
54 TRANSPORT_CONNECTION_F_DESCHED = 1 << 2,
56 * Connection is "connection less". Some important implications of that
57 * are that connections are not pinned to workers and listeners will
58 * have fifos associated to them
60 TRANSPORT_CONNECTION_F_CLESS = 1 << 3,
61 } transport_connection_flags_t;
63 typedef struct _spacer
67 clib_us_time_t last_update;
68 f32 tokens_per_period;
72 #define TRANSPORT_CONN_ID_LEN 44
75 * Protocol independent transport properties associated to a session
77 typedef struct _transport_connection
83 * Network connection ID tuple
87 ip46_address_t rmt_ip; /**< Remote IP */
88 ip46_address_t lcl_ip; /**< Local IP */
89 u32 fib_index; /**< Network namespace */
90 u16 rmt_port; /**< Remote port */
91 u16 lcl_port; /**< Local port */
92 u8 is_ip4; /**< Flag if IP4 connection */
93 u8 proto; /**< Protocol id */
94 u8 unused[2]; /**< First field after id wants to be
98 * Opaque connection ID
100 u8 opaque_conn_id[TRANSPORT_CONN_ID_LEN];
103 u32 s_index; /**< Parent session index */
104 u32 c_index; /**< Connection index in transport pool */
105 u32 thread_index; /**< Worker-thread index */
106 u8 flags; /**< Transport specific flags */
107 u8 dscp; /**< Differentiated Services Code Point */
109 /*fib_node_index_t rmt_fei;
112 spacer_t pacer; /**< Simple transport pacer */
115 elog_track_t elog_track; /**< Event logging */
116 f64 cc_stat_tstamp; /**< CC stats timestamp */
120 * Transport specific state starts in next cache line. Meant to avoid
121 * alignment surprises in transports when base class changes.
123 CLIB_CACHE_LINE_ALIGN_MARK (end);
125 /** Macros for 'derived classes' where base is named "connection" */
126 #define c_lcl_ip connection.lcl_ip
127 #define c_rmt_ip connection.rmt_ip
128 #define c_lcl_ip4 connection.lcl_ip.ip4
129 #define c_rmt_ip4 connection.rmt_ip.ip4
130 #define c_lcl_ip6 connection.lcl_ip.ip6
131 #define c_rmt_ip6 connection.rmt_ip.ip6
132 #define c_lcl_port connection.lcl_port
133 #define c_rmt_port connection.rmt_port
134 #define c_proto connection.proto
135 #define c_fib_index connection.fib_index
136 #define c_s_index connection.s_index
137 #define c_c_index connection.c_index
138 #define c_is_ip4 connection.is_ip4
139 #define c_thread_index connection.thread_index
140 #define c_elog_track connection.elog_track
141 #define c_cc_stat_tstamp connection.cc_stat_tstamp
142 #define c_rmt_fei connection.rmt_fei
143 #define c_rmt_dpo connection.rmt_dpo
144 #define c_opaque_id connection.opaque_conn_id
145 #define c_stats connection.stats
146 #define c_pacer connection.pacer
147 #define c_flags connection.flags
148 #define c_dscp connection.dscp
149 #define s_ho_handle pacer.bytes_per_sec
150 } transport_connection_t;
152 STATIC_ASSERT (STRUCT_OFFSET_OF (transport_connection_t, s_index)
153 == TRANSPORT_CONN_ID_LEN, "update conn id len");
155 /* Warn if size changes. Two cache lines is already generous, hopefully we
156 * won't have to outgrow that. */
157 STATIC_ASSERT (sizeof (transport_connection_t) <= 128,
158 "moved into 3rd cache line");
160 #define foreach_transport_proto \
161 _ (TCP, "tcp", "T") \
162 _ (UDP, "udp", "U") \
163 _ (NONE, "ct", "C") \
164 _ (TLS, "tls", "J") \
165 _ (QUIC, "quic", "Q") \
166 _ (DTLS, "dtls", "D") \
167 _ (SRTP, "srtp", "R") \
168 _ (HTTP, "http", "H")
170 typedef enum _transport_proto
172 #define _(sym, str, sstr) TRANSPORT_PROTO_ ## sym,
173 foreach_transport_proto
177 u8 *format_transport_proto (u8 * s, va_list * args);
178 u8 *format_transport_proto_short (u8 * s, va_list * args);
179 u8 *format_transport_connection (u8 * s, va_list * args);
180 u8 *format_transport_listen_connection (u8 * s, va_list * args);
181 u8 *format_transport_half_open_connection (u8 * s, va_list * args);
183 uword unformat_transport_proto (unformat_input_t * input, va_list * args);
184 u8 *format_transport_protos (u8 * s, va_list * args);
186 #define foreach_transport_endpoint_fields \
187 _(ip46_address_t, ip) /**< ip address in net order */ \
188 _(u16, port) /**< port in net order */ \
189 _(u8, is_ip4) /**< set if ip4 */ \
190 _(u32, sw_if_index) /**< interface endpoint is associated with */ \
191 _(u32, fib_index) /**< fib table endpoint is associated with */ \
193 typedef struct transport_endpoint_
195 #define _(type, name) type name;
196 foreach_transport_endpoint_fields
198 } transport_endpoint_t;
200 typedef enum transport_endpt_cfg_flags_
202 TRANSPORT_CFG_F_CONNECTED = 1 << 0,
203 TRANSPORT_CFG_F_UNIDIRECTIONAL = 1 << 1,
204 } transport_endpt_cfg_flags_t;
206 /* clang-format off */
207 #define foreach_transport_endpoint_cfg_fields \
208 foreach_transport_endpoint_fields \
209 _ (transport_endpoint_t, peer) \
210 _ (u32, next_node_index) \
211 _ (u32, next_node_opaque) \
214 _ (u8, transport_flags) \
215 /* clang-format on */
217 typedef struct transport_endpoint_pair_
219 #define _(type, name) type name;
220 foreach_transport_endpoint_cfg_fields
222 } transport_endpoint_cfg_t;
224 #define foreach_transport_endpt_cfg_flags \
229 typedef enum transport_endpt_attr_flag_bit_
231 #define _(name) TRANSPORT_ENDPT_ATTR_F_BIT_##name,
232 foreach_transport_endpt_cfg_flags
234 } __clib_packed transport_endpt_attr_flag_bit_t;
236 typedef enum transport_endpt_attr_flag_
239 TRANSPORT_ENDPT_ATTR_F_##name = 1 << TRANSPORT_ENDPT_ATTR_F_BIT_##name,
240 foreach_transport_endpt_cfg_flags
242 } __clib_packed transport_endpt_attr_flag_t;
244 #define foreach_transport_attr_fields \
245 _ (u64, next_output_node, NEXT_OUTPUT_NODE) \
247 _ (u8, flags, FLAGS) \
248 _ (u8, cc_algo, CC_ALGO)
250 typedef enum transport_endpt_attr_type_
252 #define _(type, name, str) TRANSPORT_ENDPT_ATTR_##str,
253 foreach_transport_attr_fields
255 } __clib_packed transport_endpt_attr_type_t;
257 typedef struct transport_endpt_attr_
259 transport_endpt_attr_type_t type;
262 #define _(type, name, str) type name;
263 foreach_transport_attr_fields
266 } transport_endpt_attr_t;
268 typedef enum transport_endpt_ext_cfg_type_
270 TRANSPORT_ENDPT_EXT_CFG_NONE,
271 TRANSPORT_ENDPT_EXT_CFG_CRYPTO,
272 } transport_endpt_ext_cfg_type_t;
274 typedef struct transport_endpt_crypto_cfg_
278 u8 hostname[256]; /**< full domain len is 255 as per rfc 3986 */
279 } transport_endpt_crypto_cfg_t;
281 typedef struct transport_endpt_ext_cfg_
287 transport_endpt_crypto_cfg_t crypto;
290 } transport_endpt_ext_cfg_t;
292 typedef clib_bihash_24_8_t transport_endpoint_table_t;
294 #define ENDPOINT_INVALID_INDEX ((u32)~0)
297 transport_connection_fib_proto (transport_connection_t * tc)
299 return tc->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
303 transport_endpoint_fib_proto (transport_endpoint_t * tep)
305 return tep->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
308 u8 transport_protocol_is_cl (transport_proto_t tp);
309 transport_service_type_t transport_protocol_service_type (transport_proto_t);
310 transport_tx_fn_type_t transport_protocol_tx_fn_type (transport_proto_t tp);
312 #endif /* VNET_VNET_URI_TRANSPORT_TYPES_H_ */
315 * fd.io coding-style-patch-verification: ON
318 * eval: (c-set-style "gnu")