2 * Copyright (c) 2016 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_H_
17 #define VNET_VNET_URI_TRANSPORT_H_
19 #include <vnet/vnet.h>
20 #include <vnet/ip/ip.h>
21 #include <vppinfra/bihash_16_8.h>
22 #include <vppinfra/bihash_48_8.h>
23 #include <vnet/tcp/tcp_debug.h>
25 * Protocol independent transport properties associated to a session
27 typedef struct _transport_connection
29 ip46_address_t rmt_ip; /**< Remote IP */
30 ip46_address_t lcl_ip; /**< Local IP */
31 u16 lcl_port; /**< Local port */
32 u16 rmt_port; /**< Remote port */
33 u8 proto; /**< Transport protocol id (also session type) */
35 u32 s_index; /**< Parent session index */
36 u32 c_index; /**< Connection index in transport pool */
37 u8 is_ip4; /**< Flag if IP4 connection */
38 u32 thread_index; /**< Worker-thread index */
41 elog_track_t elog_track; /**< Event logging */
44 /** Macros for 'derived classes' where base is named "connection" */
45 #define c_lcl_ip connection.lcl_ip
46 #define c_rmt_ip connection.rmt_ip
47 #define c_lcl_ip4 connection.lcl_ip.ip4
48 #define c_rmt_ip4 connection.rmt_ip.ip4
49 #define c_lcl_ip6 connection.lcl_ip.ip6
50 #define c_rmt_ip6 connection.rmt_ip.ip6
51 #define c_lcl_port connection.lcl_port
52 #define c_rmt_port connection.rmt_port
53 #define c_proto connection.proto
54 #define c_state connection.state
55 #define c_s_index connection.s_index
56 #define c_c_index connection.c_index
57 #define c_is_ip4 connection.is_ip4
58 #define c_thread_index connection.thread_index
59 #define c_elog_track connection.elog_track
60 } transport_connection_t;
63 * Transport protocol virtual function table
65 typedef struct _transport_proto_vft
70 u32 (*bind) (u32, ip46_address_t *, u16);
72 int (*open) (ip46_address_t * addr, u16 port_host_byte_order);
73 void (*close) (u32 conn_index, u32 thread_index);
74 void (*cleanup) (u32 conn_index, u32 thread_index);
79 u32 (*push_header) (transport_connection_t * tconn, vlib_buffer_t * b);
80 u16 (*send_mss) (transport_connection_t * tc);
81 u32 (*send_space) (transport_connection_t * tc);
82 u32 (*tx_fifo_offset) (transport_connection_t * tc);
85 * Connection retrieval
87 transport_connection_t *(*get_connection) (u32 conn_idx, u32 thread_idx);
88 transport_connection_t *(*get_listener) (u32 conn_index);
89 transport_connection_t *(*get_half_open) (u32 conn_index);
94 u8 *(*format_connection) (u8 * s, va_list * args);
95 u8 *(*format_listener) (u8 * s, va_list * args);
96 u8 *(*format_half_open) (u8 * s, va_list * args);
97 } transport_proto_vft_t;
101 typedef CLIB_PACKED (struct {
110 /* align by making this 4 octets even though its a 1-bit field
111 * NOTE: avoid key overlap with other transports that use 5 tuples for
112 * session identification.
118 }) v4_connection_key_t;
120 typedef CLIB_PACKED (struct {
135 }) v6_connection_key_t;
138 typedef clib_bihash_kv_16_8_t session_kv4_t;
139 typedef clib_bihash_kv_48_8_t session_kv6_t;
142 make_v4_ss_kv (session_kv4_t * kv, ip4_address_t * lcl, ip4_address_t * rmt,
143 u16 lcl_port, u16 rmt_port, u8 proto)
145 v4_connection_key_t *key = (v4_connection_key_t *) kv->key;
147 key->src.as_u32 = lcl->as_u32;
148 key->dst.as_u32 = rmt->as_u32;
149 key->src_port = lcl_port;
150 key->dst_port = rmt_port;
157 make_v4_listener_kv (session_kv4_t * kv, ip4_address_t * lcl, u16 lcl_port,
160 v4_connection_key_t *key = (v4_connection_key_t *) kv->key;
162 key->src.as_u32 = lcl->as_u32;
164 key->src_port = lcl_port;
172 make_v4_ss_kv_from_tc (session_kv4_t * kv, transport_connection_t * t)
174 return make_v4_ss_kv (kv, &t->lcl_ip.ip4, &t->rmt_ip.ip4, t->lcl_port,
175 t->rmt_port, t->proto);
179 make_v6_ss_kv (session_kv6_t * kv, ip6_address_t * lcl, ip6_address_t * rmt,
180 u16 lcl_port, u16 rmt_port, u8 proto)
182 v6_connection_key_t *key = (v6_connection_key_t *) kv->key;
184 key->src.as_u64[0] = lcl->as_u64[0];
185 key->src.as_u64[1] = lcl->as_u64[1];
186 key->dst.as_u64[0] = rmt->as_u64[0];
187 key->dst.as_u64[1] = rmt->as_u64[1];
188 key->src_port = lcl_port;
189 key->dst_port = rmt_port;
197 make_v6_listener_kv (session_kv6_t * kv, ip6_address_t * lcl, u16 lcl_port,
200 v6_connection_key_t *key = (v6_connection_key_t *) kv->key;
202 key->src.as_u64[0] = lcl->as_u64[0];
203 key->src.as_u64[1] = lcl->as_u64[1];
204 key->dst.as_u64[0] = 0;
205 key->dst.as_u64[1] = 0;
206 key->src_port = lcl_port;
215 make_v6_ss_kv_from_tc (session_kv6_t * kv, transport_connection_t * t)
217 make_v6_ss_kv (kv, &t->lcl_ip.ip6, &t->rmt_ip.ip6, t->lcl_port,
218 t->rmt_port, t->proto);
221 typedef struct _transport_endpoint
223 ip46_address_t ip; /** ip address */
224 u16 port; /** port in host order */
225 u8 is_ip4; /** 1 if ip4 */
226 u32 vrf; /** fib table the endpoint is associated with */
227 } transport_endpoint_t;
229 typedef clib_bihash_24_8_t transport_endpoint_table_t;
231 #define TRANSPORT_ENDPOINT_INVALID_INDEX ((u32)~0)
234 transport_endpoint_lookup (transport_endpoint_table_t * ht,
235 ip46_address_t * ip, u16 port);
236 void transport_endpoint_table_add (transport_endpoint_table_t * ht,
237 transport_endpoint_t * te, u32 value);
238 void transport_endpoint_table_del (transport_endpoint_table_t * ht,
239 transport_endpoint_t * te);
241 #endif /* VNET_VNET_URI_TRANSPORT_H_ */
244 * fd.io coding-style-patch-verification: ON
247 * eval: (c-set-style "gnu")