2 * Copyright (c) 2015 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 Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus
18 Permission is hereby granted, free of charge, to any person obtaining
19 a copy of this software and associated documentation files (the
20 "Software"), to deal in the Software without restriction, including
21 without limitation the rights to use, copy, modify, merge, publish,
22 distribute, sublicense, and/or sell copies of the Software, and to
23 permit persons to whom the Software is furnished to do so, subject to
24 the following conditions:
26 The above copyright notice and this permission notice shall be
27 included in all copies or substantial portions of the Software.
29 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
30 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
31 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
32 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
33 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
34 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
35 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
38 #ifndef _clib_included_socket_h
39 #define _clib_included_socket_h
41 #include <sys/types.h>
42 #include <sys/socket.h>
43 #include <netinet/in.h>
45 #include <vppinfra/clib.h>
46 #include <vppinfra/error.h>
47 #include <vppinfra/format.h>
49 typedef struct _socket_t {
50 /* File descriptor. */
53 /* Config string for socket HOST:PORT or just HOST. */
57 #define SOCKET_IS_SERVER (1 << 0)
58 #define SOCKET_IS_CLIENT (0 << 0)
59 #define SOCKET_NON_BLOCKING_CONNECT (1 << 1)
61 /* Read returned end-of-file. */
62 #define SOCKET_RX_END_OF_FILE (1 << 2)
64 /* Transmit buffer. Holds data waiting to be written. */
67 /* Receive buffer. Holds data read from socket. */
70 /* Peer socket we are connected to. */
71 struct sockaddr_in peer;
73 clib_error_t * (* write_func) (struct _socket_t * sock);
74 clib_error_t * (* read_func) (struct _socket_t * sock, int min_bytes);
75 clib_error_t * (* close_func) (struct _socket_t * sock);
79 /* socket config format is host:port.
80 Unspecified port causes a free one to be chosen starting
81 from IPPORT_USERRESERVED (5000). */
83 clib_socket_init (clib_socket_t * socket);
85 clib_error_t * clib_socket_accept (clib_socket_t * server, clib_socket_t * client);
87 always_inline uword clib_socket_is_server (clib_socket_t * sock)
88 { return (sock->flags & SOCKET_IS_SERVER) != 0; }
90 always_inline uword clib_socket_is_client (clib_socket_t * s)
91 { return ! clib_socket_is_server (s); }
93 always_inline int clib_socket_rx_end_of_file (clib_socket_t * s)
94 { return s->flags & SOCKET_RX_END_OF_FILE; }
97 clib_socket_tx_add (clib_socket_t * s, int n_bytes)
100 vec_add2 (s->tx_buffer, result, n_bytes);
105 clib_socket_tx_add_va_formatted (clib_socket_t * s, char * fmt, va_list * va)
106 { s->tx_buffer = va_format (s->tx_buffer, fmt, va); }
108 always_inline clib_error_t *
109 clib_socket_tx (clib_socket_t * s)
110 { return s->write_func (s); }
112 always_inline clib_error_t *
113 clib_socket_rx (clib_socket_t * s, int n_bytes)
114 { return s->read_func (s, n_bytes); }
117 clib_socket_free (clib_socket_t *s)
119 vec_free (s->tx_buffer);
120 vec_free (s->rx_buffer);
121 if (clib_mem_is_heap_object (s->config))
122 vec_free (s->config);
123 memset (s, 0, sizeof (s[0]));
126 always_inline clib_error_t *
127 clib_socket_close (clib_socket_t *sock)
130 err = (* sock->close_func) (sock);
135 clib_socket_tx_add_formatted (clib_socket_t * s, char * fmt, ...);
137 #endif /* _clib_included_socket_h */