Yasushi TAUCHI / Mbed 2 deprecated giken9_HTMLServer_Sample

ソースの整理中ですが、利用はできます。

Dependencies:   EthernetInterface HttpServer TextLCD mbed-rpc mbed-rtos mbed Socket lwip-eth lwip-sys lwip

EthernetInterface/lwip/api/api_lib.c@0:7766f6712673, 2014-03-12 (annotated)

Committer:
yueee_yt
Date:
Wed Mar 12 04:19:54 2014 +0000
Revision:
0:7766f6712673
???????????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yueee_yt 0:7766f6712673 1 /**
yueee_yt 0:7766f6712673 2 * @file
yueee_yt 0:7766f6712673 3 * Sequential API External module
yueee_yt 0:7766f6712673 4 *
yueee_yt 0:7766f6712673 5 */
yueee_yt 0:7766f6712673 6
yueee_yt 0:7766f6712673 7 /*
yueee_yt 0:7766f6712673 8 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
yueee_yt 0:7766f6712673 9 * All rights reserved.
yueee_yt 0:7766f6712673 10 *
yueee_yt 0:7766f6712673 11 * Redistribution and use in source and binary forms, with or without modification,
yueee_yt 0:7766f6712673 12 * are permitted provided that the following conditions are met:
yueee_yt 0:7766f6712673 13 *
yueee_yt 0:7766f6712673 14 * 1. Redistributions of source code must retain the above copyright notice,
yueee_yt 0:7766f6712673 15 * this list of conditions and the following disclaimer.
yueee_yt 0:7766f6712673 16 * 2. Redistributions in binary form must reproduce the above copyright notice,
yueee_yt 0:7766f6712673 17 * this list of conditions and the following disclaimer in the documentation
yueee_yt 0:7766f6712673 18 * and/or other materials provided with the distribution.
yueee_yt 0:7766f6712673 19 * 3. The name of the author may not be used to endorse or promote products
yueee_yt 0:7766f6712673 20 * derived from this software without specific prior written permission.
yueee_yt 0:7766f6712673 21 *
yueee_yt 0:7766f6712673 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
yueee_yt 0:7766f6712673 23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
yueee_yt 0:7766f6712673 24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
yueee_yt 0:7766f6712673 25 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
yueee_yt 0:7766f6712673 26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
yueee_yt 0:7766f6712673 27 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
yueee_yt 0:7766f6712673 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
yueee_yt 0:7766f6712673 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
yueee_yt 0:7766f6712673 30 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
yueee_yt 0:7766f6712673 31 * OF SUCH DAMAGE.
yueee_yt 0:7766f6712673 32 *
yueee_yt 0:7766f6712673 33 * This file is part of the lwIP TCP/IP stack.
yueee_yt 0:7766f6712673 34 *
yueee_yt 0:7766f6712673 35 * Author: Adam Dunkels <adam@sics.se>
yueee_yt 0:7766f6712673 36 *
yueee_yt 0:7766f6712673 37 */
yueee_yt 0:7766f6712673 38
yueee_yt 0:7766f6712673 39 /* This is the part of the API that is linked with
yueee_yt 0:7766f6712673 40 the application */
yueee_yt 0:7766f6712673 41
yueee_yt 0:7766f6712673 42 #include "lwip/opt.h"
yueee_yt 0:7766f6712673 43
yueee_yt 0:7766f6712673 44 #if LWIP_NETCONN /* don't build if not configured for use in lwipopts.h */
yueee_yt 0:7766f6712673 45
yueee_yt 0:7766f6712673 46 #include "lwip/api.h"
yueee_yt 0:7766f6712673 47 #include "lwip/tcpip.h"
yueee_yt 0:7766f6712673 48 #include "lwip/memp.h"
yueee_yt 0:7766f6712673 49
yueee_yt 0:7766f6712673 50 #include "lwip/ip.h"
yueee_yt 0:7766f6712673 51 #include "lwip/raw.h"
yueee_yt 0:7766f6712673 52 #include "lwip/udp.h"
yueee_yt 0:7766f6712673 53 #include "lwip/tcp.h"
yueee_yt 0:7766f6712673 54
yueee_yt 0:7766f6712673 55 #include <string.h>
yueee_yt 0:7766f6712673 56
yueee_yt 0:7766f6712673 57 /**
yueee_yt 0:7766f6712673 58 * Create a new netconn (of a specific type) that has a callback function.
yueee_yt 0:7766f6712673 59 * The corresponding pcb is also created.
yueee_yt 0:7766f6712673 60 *
yueee_yt 0:7766f6712673 61 * @param t the type of 'connection' to create (@see enum netconn_type)
yueee_yt 0:7766f6712673 62 * @param proto the IP protocol for RAW IP pcbs
yueee_yt 0:7766f6712673 63 * @param callback a function to call on status changes (RX available, TX'ed)
yueee_yt 0:7766f6712673 64 * @return a newly allocated struct netconn or
yueee_yt 0:7766f6712673 65 * NULL on memory error
yueee_yt 0:7766f6712673 66 */
yueee_yt 0:7766f6712673 67 struct netconn*
yueee_yt 0:7766f6712673 68 netconn_new_with_proto_and_callback(enum netconn_type t, u8_t proto, netconn_callback callback)
yueee_yt 0:7766f6712673 69 {
yueee_yt 0:7766f6712673 70 struct netconn *conn;
yueee_yt 0:7766f6712673 71 struct api_msg msg;
yueee_yt 0:7766f6712673 72
yueee_yt 0:7766f6712673 73 conn = netconn_alloc(t, callback);
yueee_yt 0:7766f6712673 74 if (conn != NULL) {
yueee_yt 0:7766f6712673 75 msg.function = do_newconn;
yueee_yt 0:7766f6712673 76 msg.msg.msg.n.proto = proto;
yueee_yt 0:7766f6712673 77 msg.msg.conn = conn;
yueee_yt 0:7766f6712673 78 if (TCPIP_APIMSG(&msg) != ERR_OK) {
yueee_yt 0:7766f6712673 79 LWIP_ASSERT("freeing conn without freeing pcb", conn->pcb.tcp == NULL);
yueee_yt 0:7766f6712673 80 LWIP_ASSERT("conn has no op_completed", sys_sem_valid(&conn->op_completed));
yueee_yt 0:7766f6712673 81 LWIP_ASSERT("conn has no recvmbox", sys_mbox_valid(&conn->recvmbox));
yueee_yt 0:7766f6712673 82 #if LWIP_TCP
yueee_yt 0:7766f6712673 83 LWIP_ASSERT("conn->acceptmbox shouldn't exist", !sys_mbox_valid(&conn->acceptmbox));
yueee_yt 0:7766f6712673 84 #endif /* LWIP_TCP */
yueee_yt 0:7766f6712673 85 sys_sem_free(&conn->op_completed);
yueee_yt 0:7766f6712673 86 sys_mbox_free(&conn->recvmbox);
yueee_yt 0:7766f6712673 87 memp_free(MEMP_NETCONN, conn);
yueee_yt 0:7766f6712673 88 return NULL;
yueee_yt 0:7766f6712673 89 }
yueee_yt 0:7766f6712673 90 }
yueee_yt 0:7766f6712673 91 return conn;
yueee_yt 0:7766f6712673 92 }
yueee_yt 0:7766f6712673 93
yueee_yt 0:7766f6712673 94 /**
yueee_yt 0:7766f6712673 95 * Close a netconn 'connection' and free its resources.
yueee_yt 0:7766f6712673 96 * UDP and RAW connection are completely closed, TCP pcbs might still be in a waitstate
yueee_yt 0:7766f6712673 97 * after this returns.
yueee_yt 0:7766f6712673 98 *
yueee_yt 0:7766f6712673 99 * @param conn the netconn to delete
yueee_yt 0:7766f6712673 100 * @return ERR_OK if the connection was deleted
yueee_yt 0:7766f6712673 101 */
yueee_yt 0:7766f6712673 102 err_t
yueee_yt 0:7766f6712673 103 netconn_delete(struct netconn *conn)
yueee_yt 0:7766f6712673 104 {
yueee_yt 0:7766f6712673 105 struct api_msg msg;
yueee_yt 0:7766f6712673 106
yueee_yt 0:7766f6712673 107 /* No ASSERT here because possible to get a (conn == NULL) if we got an accept error */
yueee_yt 0:7766f6712673 108 if (conn == NULL) {
yueee_yt 0:7766f6712673 109 return ERR_OK;
yueee_yt 0:7766f6712673 110 }
yueee_yt 0:7766f6712673 111
yueee_yt 0:7766f6712673 112 msg.function = do_delconn;
yueee_yt 0:7766f6712673 113 msg.msg.conn = conn;
yueee_yt 0:7766f6712673 114 tcpip_apimsg(&msg);
yueee_yt 0:7766f6712673 115
yueee_yt 0:7766f6712673 116 netconn_free(conn);
yueee_yt 0:7766f6712673 117
yueee_yt 0:7766f6712673 118 /* don't care for return value of do_delconn since it only calls void functions */
yueee_yt 0:7766f6712673 119
yueee_yt 0:7766f6712673 120 return ERR_OK;
yueee_yt 0:7766f6712673 121 }
yueee_yt 0:7766f6712673 122
yueee_yt 0:7766f6712673 123 /**
yueee_yt 0:7766f6712673 124 * Get the local or remote IP address and port of a netconn.
yueee_yt 0:7766f6712673 125 * For RAW netconns, this returns the protocol instead of a port!
yueee_yt 0:7766f6712673 126 *
yueee_yt 0:7766f6712673 127 * @param conn the netconn to query
yueee_yt 0:7766f6712673 128 * @param addr a pointer to which to save the IP address
yueee_yt 0:7766f6712673 129 * @param port a pointer to which to save the port (or protocol for RAW)
yueee_yt 0:7766f6712673 130 * @param local 1 to get the local IP address, 0 to get the remote one
yueee_yt 0:7766f6712673 131 * @return ERR_CONN for invalid connections
yueee_yt 0:7766f6712673 132 * ERR_OK if the information was retrieved
yueee_yt 0:7766f6712673 133 */
yueee_yt 0:7766f6712673 134 err_t
yueee_yt 0:7766f6712673 135 netconn_getaddr(struct netconn *conn, ip_addr_t *addr, u16_t *port, u8_t local)
yueee_yt 0:7766f6712673 136 {
yueee_yt 0:7766f6712673 137 struct api_msg msg;
yueee_yt 0:7766f6712673 138 err_t err;
yueee_yt 0:7766f6712673 139
yueee_yt 0:7766f6712673 140 LWIP_ERROR("netconn_getaddr: invalid conn", (conn != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 141 LWIP_ERROR("netconn_getaddr: invalid addr", (addr != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 142 LWIP_ERROR("netconn_getaddr: invalid port", (port != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 143
yueee_yt 0:7766f6712673 144 msg.function = do_getaddr;
yueee_yt 0:7766f6712673 145 msg.msg.conn = conn;
yueee_yt 0:7766f6712673 146 msg.msg.msg.ad.ipaddr = addr;
yueee_yt 0:7766f6712673 147 msg.msg.msg.ad.port = port;
yueee_yt 0:7766f6712673 148 msg.msg.msg.ad.local = local;
yueee_yt 0:7766f6712673 149 err = TCPIP_APIMSG(&msg);
yueee_yt 0:7766f6712673 150
yueee_yt 0:7766f6712673 151 NETCONN_SET_SAFE_ERR(conn, err);
yueee_yt 0:7766f6712673 152 return err;
yueee_yt 0:7766f6712673 153 }
yueee_yt 0:7766f6712673 154
yueee_yt 0:7766f6712673 155 /**
yueee_yt 0:7766f6712673 156 * Bind a netconn to a specific local IP address and port.
yueee_yt 0:7766f6712673 157 * Binding one netconn twice might not always be checked correctly!
yueee_yt 0:7766f6712673 158 *
yueee_yt 0:7766f6712673 159 * @param conn the netconn to bind
yueee_yt 0:7766f6712673 160 * @param addr the local IP address to bind the netconn to (use IP_ADDR_ANY
yueee_yt 0:7766f6712673 161 * to bind to all addresses)
yueee_yt 0:7766f6712673 162 * @param port the local port to bind the netconn to (not used for RAW)
yueee_yt 0:7766f6712673 163 * @return ERR_OK if bound, any other err_t on failure
yueee_yt 0:7766f6712673 164 */
yueee_yt 0:7766f6712673 165 err_t
yueee_yt 0:7766f6712673 166 netconn_bind(struct netconn *conn, ip_addr_t *addr, u16_t port)
yueee_yt 0:7766f6712673 167 {
yueee_yt 0:7766f6712673 168 struct api_msg msg;
yueee_yt 0:7766f6712673 169 err_t err;
yueee_yt 0:7766f6712673 170
yueee_yt 0:7766f6712673 171 LWIP_ERROR("netconn_bind: invalid conn", (conn != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 172
yueee_yt 0:7766f6712673 173 msg.function = do_bind;
yueee_yt 0:7766f6712673 174 msg.msg.conn = conn;
yueee_yt 0:7766f6712673 175 msg.msg.msg.bc.ipaddr = addr;
yueee_yt 0:7766f6712673 176 msg.msg.msg.bc.port = port;
yueee_yt 0:7766f6712673 177 err = TCPIP_APIMSG(&msg);
yueee_yt 0:7766f6712673 178
yueee_yt 0:7766f6712673 179 NETCONN_SET_SAFE_ERR(conn, err);
yueee_yt 0:7766f6712673 180 return err;
yueee_yt 0:7766f6712673 181 }
yueee_yt 0:7766f6712673 182
yueee_yt 0:7766f6712673 183 /**
yueee_yt 0:7766f6712673 184 * Connect a netconn to a specific remote IP address and port.
yueee_yt 0:7766f6712673 185 *
yueee_yt 0:7766f6712673 186 * @param conn the netconn to connect
yueee_yt 0:7766f6712673 187 * @param addr the remote IP address to connect to
yueee_yt 0:7766f6712673 188 * @param port the remote port to connect to (no used for RAW)
yueee_yt 0:7766f6712673 189 * @return ERR_OK if connected, return value of tcp_/udp_/raw_connect otherwise
yueee_yt 0:7766f6712673 190 */
yueee_yt 0:7766f6712673 191 err_t
yueee_yt 0:7766f6712673 192 netconn_connect(struct netconn *conn, ip_addr_t *addr, u16_t port)
yueee_yt 0:7766f6712673 193 {
yueee_yt 0:7766f6712673 194 struct api_msg msg;
yueee_yt 0:7766f6712673 195 err_t err;
yueee_yt 0:7766f6712673 196
yueee_yt 0:7766f6712673 197 LWIP_ERROR("netconn_connect: invalid conn", (conn != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 198
yueee_yt 0:7766f6712673 199 msg.function = do_connect;
yueee_yt 0:7766f6712673 200 msg.msg.conn = conn;
yueee_yt 0:7766f6712673 201 msg.msg.msg.bc.ipaddr = addr;
yueee_yt 0:7766f6712673 202 msg.msg.msg.bc.port = port;
yueee_yt 0:7766f6712673 203 /* This is the only function which need to not block tcpip_thread */
yueee_yt 0:7766f6712673 204 err = tcpip_apimsg(&msg);
yueee_yt 0:7766f6712673 205
yueee_yt 0:7766f6712673 206 NETCONN_SET_SAFE_ERR(conn, err);
yueee_yt 0:7766f6712673 207 return err;
yueee_yt 0:7766f6712673 208 }
yueee_yt 0:7766f6712673 209
yueee_yt 0:7766f6712673 210 /**
yueee_yt 0:7766f6712673 211 * Disconnect a netconn from its current peer (only valid for UDP netconns).
yueee_yt 0:7766f6712673 212 *
yueee_yt 0:7766f6712673 213 * @param conn the netconn to disconnect
yueee_yt 0:7766f6712673 214 * @return TODO: return value is not set here...
yueee_yt 0:7766f6712673 215 */
yueee_yt 0:7766f6712673 216 err_t
yueee_yt 0:7766f6712673 217 netconn_disconnect(struct netconn *conn)
yueee_yt 0:7766f6712673 218 {
yueee_yt 0:7766f6712673 219 struct api_msg msg;
yueee_yt 0:7766f6712673 220 err_t err;
yueee_yt 0:7766f6712673 221
yueee_yt 0:7766f6712673 222 LWIP_ERROR("netconn_disconnect: invalid conn", (conn != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 223
yueee_yt 0:7766f6712673 224 msg.function = do_disconnect;
yueee_yt 0:7766f6712673 225 msg.msg.conn = conn;
yueee_yt 0:7766f6712673 226 err = TCPIP_APIMSG(&msg);
yueee_yt 0:7766f6712673 227
yueee_yt 0:7766f6712673 228 NETCONN_SET_SAFE_ERR(conn, err);
yueee_yt 0:7766f6712673 229 return err;
yueee_yt 0:7766f6712673 230 }
yueee_yt 0:7766f6712673 231
yueee_yt 0:7766f6712673 232 /**
yueee_yt 0:7766f6712673 233 * Set a TCP netconn into listen mode
yueee_yt 0:7766f6712673 234 *
yueee_yt 0:7766f6712673 235 * @param conn the tcp netconn to set to listen mode
yueee_yt 0:7766f6712673 236 * @param backlog the listen backlog, only used if TCP_LISTEN_BACKLOG==1
yueee_yt 0:7766f6712673 237 * @return ERR_OK if the netconn was set to listen (UDP and RAW netconns
yueee_yt 0:7766f6712673 238 * don't return any error (yet?))
yueee_yt 0:7766f6712673 239 */
yueee_yt 0:7766f6712673 240 err_t
yueee_yt 0:7766f6712673 241 netconn_listen_with_backlog(struct netconn *conn, u8_t backlog)
yueee_yt 0:7766f6712673 242 {
yueee_yt 0:7766f6712673 243 #if LWIP_TCP
yueee_yt 0:7766f6712673 244 struct api_msg msg;
yueee_yt 0:7766f6712673 245 err_t err;
yueee_yt 0:7766f6712673 246
yueee_yt 0:7766f6712673 247 /* This does no harm. If TCP_LISTEN_BACKLOG is off, backlog is unused. */
yueee_yt 0:7766f6712673 248 LWIP_UNUSED_ARG(backlog);
yueee_yt 0:7766f6712673 249
yueee_yt 0:7766f6712673 250 LWIP_ERROR("netconn_listen: invalid conn", (conn != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 251
yueee_yt 0:7766f6712673 252 msg.function = do_listen;
yueee_yt 0:7766f6712673 253 msg.msg.conn = conn;
yueee_yt 0:7766f6712673 254 #if TCP_LISTEN_BACKLOG
yueee_yt 0:7766f6712673 255 msg.msg.msg.lb.backlog = backlog;
yueee_yt 0:7766f6712673 256 #endif /* TCP_LISTEN_BACKLOG */
yueee_yt 0:7766f6712673 257 err = TCPIP_APIMSG(&msg);
yueee_yt 0:7766f6712673 258
yueee_yt 0:7766f6712673 259 NETCONN_SET_SAFE_ERR(conn, err);
yueee_yt 0:7766f6712673 260 return err;
yueee_yt 0:7766f6712673 261 #else /* LWIP_TCP */
yueee_yt 0:7766f6712673 262 LWIP_UNUSED_ARG(conn);
yueee_yt 0:7766f6712673 263 LWIP_UNUSED_ARG(backlog);
yueee_yt 0:7766f6712673 264 return ERR_ARG;
yueee_yt 0:7766f6712673 265 #endif /* LWIP_TCP */
yueee_yt 0:7766f6712673 266 }
yueee_yt 0:7766f6712673 267
yueee_yt 0:7766f6712673 268 /**
yueee_yt 0:7766f6712673 269 * Accept a new connection on a TCP listening netconn.
yueee_yt 0:7766f6712673 270 *
yueee_yt 0:7766f6712673 271 * @param conn the TCP listen netconn
yueee_yt 0:7766f6712673 272 * @param new_conn pointer where the new connection is stored
yueee_yt 0:7766f6712673 273 * @return ERR_OK if a new connection has been received or an error
yueee_yt 0:7766f6712673 274 * code otherwise
yueee_yt 0:7766f6712673 275 */
yueee_yt 0:7766f6712673 276 err_t
yueee_yt 0:7766f6712673 277 netconn_accept(struct netconn *conn, struct netconn **new_conn)
yueee_yt 0:7766f6712673 278 {
yueee_yt 0:7766f6712673 279 #if LWIP_TCP
yueee_yt 0:7766f6712673 280 struct netconn *newconn;
yueee_yt 0:7766f6712673 281 err_t err;
yueee_yt 0:7766f6712673 282 #if TCP_LISTEN_BACKLOG
yueee_yt 0:7766f6712673 283 struct api_msg msg;
yueee_yt 0:7766f6712673 284 #endif /* TCP_LISTEN_BACKLOG */
yueee_yt 0:7766f6712673 285
yueee_yt 0:7766f6712673 286 LWIP_ERROR("netconn_accept: invalid pointer", (new_conn != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 287 *new_conn = NULL;
yueee_yt 0:7766f6712673 288 LWIP_ERROR("netconn_accept: invalid conn", (conn != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 289 LWIP_ERROR("netconn_accept: invalid acceptmbox", sys_mbox_valid(&conn->acceptmbox), return ERR_ARG;);
yueee_yt 0:7766f6712673 290
yueee_yt 0:7766f6712673 291 err = conn->last_err;
yueee_yt 0:7766f6712673 292 if (ERR_IS_FATAL(err)) {
yueee_yt 0:7766f6712673 293 /* don't recv on fatal errors: this might block the application task
yueee_yt 0:7766f6712673 294 waiting on acceptmbox forever! */
yueee_yt 0:7766f6712673 295 return err;
yueee_yt 0:7766f6712673 296 }
yueee_yt 0:7766f6712673 297
yueee_yt 0:7766f6712673 298 #if LWIP_SO_RCVTIMEO
yueee_yt 0:7766f6712673 299 if (sys_arch_mbox_fetch(&conn->acceptmbox, (void **)&newconn, conn->recv_timeout) == SYS_ARCH_TIMEOUT) {
yueee_yt 0:7766f6712673 300 NETCONN_SET_SAFE_ERR(conn, ERR_TIMEOUT);
yueee_yt 0:7766f6712673 301 return ERR_TIMEOUT;
yueee_yt 0:7766f6712673 302 }
yueee_yt 0:7766f6712673 303 #else
yueee_yt 0:7766f6712673 304 sys_arch_mbox_fetch(&conn->acceptmbox, (void **)&newconn, 0);
yueee_yt 0:7766f6712673 305 #endif /* LWIP_SO_RCVTIMEO*/
yueee_yt 0:7766f6712673 306 /* Register event with callback */
yueee_yt 0:7766f6712673 307 API_EVENT(conn, NETCONN_EVT_RCVMINUS, 0);
yueee_yt 0:7766f6712673 308
yueee_yt 0:7766f6712673 309 if (newconn == NULL) {
yueee_yt 0:7766f6712673 310 /* connection has been aborted */
yueee_yt 0:7766f6712673 311 NETCONN_SET_SAFE_ERR(conn, ERR_ABRT);
yueee_yt 0:7766f6712673 312 return ERR_ABRT;
yueee_yt 0:7766f6712673 313 }
yueee_yt 0:7766f6712673 314 #if TCP_LISTEN_BACKLOG
yueee_yt 0:7766f6712673 315 /* Let the stack know that we have accepted the connection. */
yueee_yt 0:7766f6712673 316 msg.function = do_recv;
yueee_yt 0:7766f6712673 317 msg.msg.conn = conn;
yueee_yt 0:7766f6712673 318 /* don't care for the return value of do_recv */
yueee_yt 0:7766f6712673 319 TCPIP_APIMSG(&msg);
yueee_yt 0:7766f6712673 320 #endif /* TCP_LISTEN_BACKLOG */
yueee_yt 0:7766f6712673 321
yueee_yt 0:7766f6712673 322 *new_conn = newconn;
yueee_yt 0:7766f6712673 323 /* don't set conn->last_err: it's only ERR_OK, anyway */
yueee_yt 0:7766f6712673 324 return ERR_OK;
yueee_yt 0:7766f6712673 325 #else /* LWIP_TCP */
yueee_yt 0:7766f6712673 326 LWIP_UNUSED_ARG(conn);
yueee_yt 0:7766f6712673 327 LWIP_UNUSED_ARG(new_conn);
yueee_yt 0:7766f6712673 328 return ERR_ARG;
yueee_yt 0:7766f6712673 329 #endif /* LWIP_TCP */
yueee_yt 0:7766f6712673 330 }
yueee_yt 0:7766f6712673 331
yueee_yt 0:7766f6712673 332 /**
yueee_yt 0:7766f6712673 333 * Receive data: actual implementation that doesn't care whether pbuf or netbuf
yueee_yt 0:7766f6712673 334 * is received
yueee_yt 0:7766f6712673 335 *
yueee_yt 0:7766f6712673 336 * @param conn the netconn from which to receive data
yueee_yt 0:7766f6712673 337 * @param new_buf pointer where a new pbuf/netbuf is stored when received data
yueee_yt 0:7766f6712673 338 * @return ERR_OK if data has been received, an error code otherwise (timeout,
yueee_yt 0:7766f6712673 339 * memory error or another error)
yueee_yt 0:7766f6712673 340 */
yueee_yt 0:7766f6712673 341 static err_t
yueee_yt 0:7766f6712673 342 netconn_recv_data(struct netconn *conn, void **new_buf)
yueee_yt 0:7766f6712673 343 {
yueee_yt 0:7766f6712673 344 void *buf = NULL;
yueee_yt 0:7766f6712673 345 u16_t len;
yueee_yt 0:7766f6712673 346 err_t err;
yueee_yt 0:7766f6712673 347 #if LWIP_TCP
yueee_yt 0:7766f6712673 348 struct api_msg msg;
yueee_yt 0:7766f6712673 349 #endif /* LWIP_TCP */
yueee_yt 0:7766f6712673 350
yueee_yt 0:7766f6712673 351 LWIP_ERROR("netconn_recv: invalid pointer", (new_buf != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 352 *new_buf = NULL;
yueee_yt 0:7766f6712673 353 LWIP_ERROR("netconn_recv: invalid conn", (conn != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 354 LWIP_ERROR("netconn_accept: invalid recvmbox", sys_mbox_valid(&conn->recvmbox), return ERR_CONN;);
yueee_yt 0:7766f6712673 355
yueee_yt 0:7766f6712673 356 err = conn->last_err;
yueee_yt 0:7766f6712673 357 if (ERR_IS_FATAL(err)) {
yueee_yt 0:7766f6712673 358 /* don't recv on fatal errors: this might block the application task
yueee_yt 0:7766f6712673 359 waiting on recvmbox forever! */
yueee_yt 0:7766f6712673 360 /* @todo: this does not allow us to fetch data that has been put into recvmbox
yueee_yt 0:7766f6712673 361 before the fatal error occurred - is that a problem? */
yueee_yt 0:7766f6712673 362 return err;
yueee_yt 0:7766f6712673 363 }
yueee_yt 0:7766f6712673 364
yueee_yt 0:7766f6712673 365 #if LWIP_SO_RCVTIMEO
yueee_yt 0:7766f6712673 366 if (sys_arch_mbox_fetch(&conn->recvmbox, &buf, conn->recv_timeout) == SYS_ARCH_TIMEOUT) {
yueee_yt 0:7766f6712673 367 NETCONN_SET_SAFE_ERR(conn, ERR_TIMEOUT);
yueee_yt 0:7766f6712673 368 return ERR_TIMEOUT;
yueee_yt 0:7766f6712673 369 }
yueee_yt 0:7766f6712673 370 #else
yueee_yt 0:7766f6712673 371 sys_arch_mbox_fetch(&conn->recvmbox, &buf, 0);
yueee_yt 0:7766f6712673 372 #endif /* LWIP_SO_RCVTIMEO*/
yueee_yt 0:7766f6712673 373
yueee_yt 0:7766f6712673 374 #if LWIP_TCP
yueee_yt 0:7766f6712673 375 if (conn->type == NETCONN_TCP) {
yueee_yt 0:7766f6712673 376 if (!netconn_get_noautorecved(conn) || (buf == NULL)) {
yueee_yt 0:7766f6712673 377 /* Let the stack know that we have taken the data. */
yueee_yt 0:7766f6712673 378 /* TODO: Speedup: Don't block and wait for the answer here
yueee_yt 0:7766f6712673 379 (to prevent multiple thread-switches). */
yueee_yt 0:7766f6712673 380 msg.function = do_recv;
yueee_yt 0:7766f6712673 381 msg.msg.conn = conn;
yueee_yt 0:7766f6712673 382 if (buf != NULL) {
yueee_yt 0:7766f6712673 383 msg.msg.msg.r.len = ((struct pbuf *)buf)->tot_len;
yueee_yt 0:7766f6712673 384 } else {
yueee_yt 0:7766f6712673 385 msg.msg.msg.r.len = 1;
yueee_yt 0:7766f6712673 386 }
yueee_yt 0:7766f6712673 387 /* don't care for the return value of do_recv */
yueee_yt 0:7766f6712673 388 TCPIP_APIMSG(&msg);
yueee_yt 0:7766f6712673 389 }
yueee_yt 0:7766f6712673 390
yueee_yt 0:7766f6712673 391 /* If we are closed, we indicate that we no longer wish to use the socket */
yueee_yt 0:7766f6712673 392 if (buf == NULL) {
yueee_yt 0:7766f6712673 393 API_EVENT(conn, NETCONN_EVT_RCVMINUS, 0);
yueee_yt 0:7766f6712673 394 /* Avoid to lose any previous error code */
yueee_yt 0:7766f6712673 395 NETCONN_SET_SAFE_ERR(conn, ERR_CLSD);
yueee_yt 0:7766f6712673 396 return ERR_CLSD;
yueee_yt 0:7766f6712673 397 }
yueee_yt 0:7766f6712673 398 len = ((struct pbuf *)buf)->tot_len;
yueee_yt 0:7766f6712673 399 }
yueee_yt 0:7766f6712673 400 #endif /* LWIP_TCP */
yueee_yt 0:7766f6712673 401 #if LWIP_TCP && (LWIP_UDP || LWIP_RAW)
yueee_yt 0:7766f6712673 402 else
yueee_yt 0:7766f6712673 403 #endif /* LWIP_TCP && (LWIP_UDP || LWIP_RAW) */
yueee_yt 0:7766f6712673 404 #if (LWIP_UDP || LWIP_RAW)
yueee_yt 0:7766f6712673 405 {
yueee_yt 0:7766f6712673 406 LWIP_ASSERT("buf != NULL", buf != NULL);
yueee_yt 0:7766f6712673 407 len = netbuf_len((struct netbuf *)buf);
yueee_yt 0:7766f6712673 408 }
yueee_yt 0:7766f6712673 409 #endif /* (LWIP_UDP || LWIP_RAW) */
yueee_yt 0:7766f6712673 410
yueee_yt 0:7766f6712673 411 #if LWIP_SO_RCVBUF
yueee_yt 0:7766f6712673 412 SYS_ARCH_DEC(conn->recv_avail, len);
yueee_yt 0:7766f6712673 413 #endif /* LWIP_SO_RCVBUF */
yueee_yt 0:7766f6712673 414 /* Register event with callback */
yueee_yt 0:7766f6712673 415 API_EVENT(conn, NETCONN_EVT_RCVMINUS, len);
yueee_yt 0:7766f6712673 416
yueee_yt 0:7766f6712673 417 LWIP_DEBUGF(API_LIB_DEBUG, ("netconn_recv_data: received %p, len=%"U16_F"\n", buf, len));
yueee_yt 0:7766f6712673 418
yueee_yt 0:7766f6712673 419 *new_buf = buf;
yueee_yt 0:7766f6712673 420 /* don't set conn->last_err: it's only ERR_OK, anyway */
yueee_yt 0:7766f6712673 421 return ERR_OK;
yueee_yt 0:7766f6712673 422 }
yueee_yt 0:7766f6712673 423
yueee_yt 0:7766f6712673 424 /**
yueee_yt 0:7766f6712673 425 * Receive data (in form of a pbuf) from a TCP netconn
yueee_yt 0:7766f6712673 426 *
yueee_yt 0:7766f6712673 427 * @param conn the netconn from which to receive data
yueee_yt 0:7766f6712673 428 * @param new_buf pointer where a new pbuf is stored when received data
yueee_yt 0:7766f6712673 429 * @return ERR_OK if data has been received, an error code otherwise (timeout,
yueee_yt 0:7766f6712673 430 * memory error or another error)
yueee_yt 0:7766f6712673 431 * ERR_ARG if conn is not a TCP netconn
yueee_yt 0:7766f6712673 432 */
yueee_yt 0:7766f6712673 433 err_t
yueee_yt 0:7766f6712673 434 netconn_recv_tcp_pbuf(struct netconn *conn, struct pbuf **new_buf)
yueee_yt 0:7766f6712673 435 {
yueee_yt 0:7766f6712673 436 LWIP_ERROR("netconn_recv: invalid conn", (conn != NULL) &&
yueee_yt 0:7766f6712673 437 netconn_type(conn) == NETCONN_TCP, return ERR_ARG;);
yueee_yt 0:7766f6712673 438
yueee_yt 0:7766f6712673 439 return netconn_recv_data(conn, (void **)new_buf);
yueee_yt 0:7766f6712673 440 }
yueee_yt 0:7766f6712673 441
yueee_yt 0:7766f6712673 442 /**
yueee_yt 0:7766f6712673 443 * Receive data (in form of a netbuf containing a packet buffer) from a netconn
yueee_yt 0:7766f6712673 444 *
yueee_yt 0:7766f6712673 445 * @param conn the netconn from which to receive data
yueee_yt 0:7766f6712673 446 * @param new_buf pointer where a new netbuf is stored when received data
yueee_yt 0:7766f6712673 447 * @return ERR_OK if data has been received, an error code otherwise (timeout,
yueee_yt 0:7766f6712673 448 * memory error or another error)
yueee_yt 0:7766f6712673 449 */
yueee_yt 0:7766f6712673 450 err_t
yueee_yt 0:7766f6712673 451 netconn_recv(struct netconn *conn, struct netbuf **new_buf)
yueee_yt 0:7766f6712673 452 {
yueee_yt 0:7766f6712673 453 #if LWIP_TCP
yueee_yt 0:7766f6712673 454 struct netbuf *buf = NULL;
yueee_yt 0:7766f6712673 455 err_t err;
yueee_yt 0:7766f6712673 456 #endif /* LWIP_TCP */
yueee_yt 0:7766f6712673 457
yueee_yt 0:7766f6712673 458 LWIP_ERROR("netconn_recv: invalid pointer", (new_buf != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 459 *new_buf = NULL;
yueee_yt 0:7766f6712673 460 LWIP_ERROR("netconn_recv: invalid conn", (conn != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 461 LWIP_ERROR("netconn_accept: invalid recvmbox", sys_mbox_valid(&conn->recvmbox), return ERR_CONN;);
yueee_yt 0:7766f6712673 462
yueee_yt 0:7766f6712673 463 #if LWIP_TCP
yueee_yt 0:7766f6712673 464 if (conn->type == NETCONN_TCP) {
yueee_yt 0:7766f6712673 465 struct pbuf *p = NULL;
yueee_yt 0:7766f6712673 466 /* This is not a listening netconn, since recvmbox is set */
yueee_yt 0:7766f6712673 467
yueee_yt 0:7766f6712673 468 buf = (struct netbuf *)memp_malloc(MEMP_NETBUF);
yueee_yt 0:7766f6712673 469 if (buf == NULL) {
yueee_yt 0:7766f6712673 470 NETCONN_SET_SAFE_ERR(conn, ERR_MEM);
yueee_yt 0:7766f6712673 471 return ERR_MEM;
yueee_yt 0:7766f6712673 472 }
yueee_yt 0:7766f6712673 473
yueee_yt 0:7766f6712673 474 err = netconn_recv_data(conn, (void **)&p);
yueee_yt 0:7766f6712673 475 if (err != ERR_OK) {
yueee_yt 0:7766f6712673 476 memp_free(MEMP_NETBUF, buf);
yueee_yt 0:7766f6712673 477 return err;
yueee_yt 0:7766f6712673 478 }
yueee_yt 0:7766f6712673 479 LWIP_ASSERT("p != NULL", p != NULL);
yueee_yt 0:7766f6712673 480
yueee_yt 0:7766f6712673 481 buf->p = p;
yueee_yt 0:7766f6712673 482 buf->ptr = p;
yueee_yt 0:7766f6712673 483 buf->port = 0;
yueee_yt 0:7766f6712673 484 ip_addr_set_any(&buf->addr);
yueee_yt 0:7766f6712673 485 *new_buf = buf;
yueee_yt 0:7766f6712673 486 /* don't set conn->last_err: it's only ERR_OK, anyway */
yueee_yt 0:7766f6712673 487 return ERR_OK;
yueee_yt 0:7766f6712673 488 } else
yueee_yt 0:7766f6712673 489 #endif /* LWIP_TCP */
yueee_yt 0:7766f6712673 490 {
yueee_yt 0:7766f6712673 491 #if (LWIP_UDP || LWIP_RAW)
yueee_yt 0:7766f6712673 492 return netconn_recv_data(conn, (void **)new_buf);
yueee_yt 0:7766f6712673 493 #endif /* (LWIP_UDP || LWIP_RAW) */
yueee_yt 0:7766f6712673 494 }
yueee_yt 0:7766f6712673 495 }
yueee_yt 0:7766f6712673 496
yueee_yt 0:7766f6712673 497 /**
yueee_yt 0:7766f6712673 498 * TCP: update the receive window: by calling this, the application
yueee_yt 0:7766f6712673 499 * tells the stack that it has processed data and is able to accept
yueee_yt 0:7766f6712673 500 * new data.
yueee_yt 0:7766f6712673 501 * ATTENTION: use with care, this is mainly used for sockets!
yueee_yt 0:7766f6712673 502 * Can only be used when calling netconn_set_noautorecved(conn, 1) before.
yueee_yt 0:7766f6712673 503 *
yueee_yt 0:7766f6712673 504 * @param conn the netconn for which to update the receive window
yueee_yt 0:7766f6712673 505 * @param length amount of data processed (ATTENTION: this must be accurate!)
yueee_yt 0:7766f6712673 506 */
yueee_yt 0:7766f6712673 507 void
yueee_yt 0:7766f6712673 508 netconn_recved(struct netconn *conn, u32_t length)
yueee_yt 0:7766f6712673 509 {
yueee_yt 0:7766f6712673 510 #if LWIP_TCP
yueee_yt 0:7766f6712673 511 if ((conn != NULL) && (conn->type == NETCONN_TCP) &&
yueee_yt 0:7766f6712673 512 (netconn_get_noautorecved(conn))) {
yueee_yt 0:7766f6712673 513 struct api_msg msg;
yueee_yt 0:7766f6712673 514 /* Let the stack know that we have taken the data. */
yueee_yt 0:7766f6712673 515 /* TODO: Speedup: Don't block and wait for the answer here
yueee_yt 0:7766f6712673 516 (to prevent multiple thread-switches). */
yueee_yt 0:7766f6712673 517 msg.function = do_recv;
yueee_yt 0:7766f6712673 518 msg.msg.conn = conn;
yueee_yt 0:7766f6712673 519 msg.msg.msg.r.len = length;
yueee_yt 0:7766f6712673 520 /* don't care for the return value of do_recv */
yueee_yt 0:7766f6712673 521 TCPIP_APIMSG(&msg);
yueee_yt 0:7766f6712673 522 }
yueee_yt 0:7766f6712673 523 #else /* LWIP_TCP */
yueee_yt 0:7766f6712673 524 LWIP_UNUSED_ARG(conn);
yueee_yt 0:7766f6712673 525 LWIP_UNUSED_ARG(length);
yueee_yt 0:7766f6712673 526 #endif /* LWIP_TCP */
yueee_yt 0:7766f6712673 527 }
yueee_yt 0:7766f6712673 528
yueee_yt 0:7766f6712673 529 /**
yueee_yt 0:7766f6712673 530 * Send data (in form of a netbuf) to a specific remote IP address and port.
yueee_yt 0:7766f6712673 531 * Only to be used for UDP and RAW netconns (not TCP).
yueee_yt 0:7766f6712673 532 *
yueee_yt 0:7766f6712673 533 * @param conn the netconn over which to send data
yueee_yt 0:7766f6712673 534 * @param buf a netbuf containing the data to send
yueee_yt 0:7766f6712673 535 * @param addr the remote IP address to which to send the data
yueee_yt 0:7766f6712673 536 * @param port the remote port to which to send the data
yueee_yt 0:7766f6712673 537 * @return ERR_OK if data was sent, any other err_t on error
yueee_yt 0:7766f6712673 538 */
yueee_yt 0:7766f6712673 539 err_t
yueee_yt 0:7766f6712673 540 netconn_sendto(struct netconn *conn, struct netbuf *buf, ip_addr_t *addr, u16_t port)
yueee_yt 0:7766f6712673 541 {
yueee_yt 0:7766f6712673 542 if (buf != NULL) {
yueee_yt 0:7766f6712673 543 ip_addr_set(&buf->addr, addr);
yueee_yt 0:7766f6712673 544 buf->port = port;
yueee_yt 0:7766f6712673 545 return netconn_send(conn, buf);
yueee_yt 0:7766f6712673 546 }
yueee_yt 0:7766f6712673 547 return ERR_VAL;
yueee_yt 0:7766f6712673 548 }
yueee_yt 0:7766f6712673 549
yueee_yt 0:7766f6712673 550 /**
yueee_yt 0:7766f6712673 551 * Send data over a UDP or RAW netconn (that is already connected).
yueee_yt 0:7766f6712673 552 *
yueee_yt 0:7766f6712673 553 * @param conn the UDP or RAW netconn over which to send data
yueee_yt 0:7766f6712673 554 * @param buf a netbuf containing the data to send
yueee_yt 0:7766f6712673 555 * @return ERR_OK if data was sent, any other err_t on error
yueee_yt 0:7766f6712673 556 */
yueee_yt 0:7766f6712673 557 err_t
yueee_yt 0:7766f6712673 558 netconn_send(struct netconn *conn, struct netbuf *buf)
yueee_yt 0:7766f6712673 559 {
yueee_yt 0:7766f6712673 560 struct api_msg msg;
yueee_yt 0:7766f6712673 561 err_t err;
yueee_yt 0:7766f6712673 562
yueee_yt 0:7766f6712673 563 LWIP_ERROR("netconn_send: invalid conn", (conn != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 564
yueee_yt 0:7766f6712673 565 LWIP_DEBUGF(API_LIB_DEBUG, ("netconn_send: sending %"U16_F" bytes\n", buf->p->tot_len));
yueee_yt 0:7766f6712673 566 msg.function = do_send;
yueee_yt 0:7766f6712673 567 msg.msg.conn = conn;
yueee_yt 0:7766f6712673 568 msg.msg.msg.b = buf;
yueee_yt 0:7766f6712673 569 err = TCPIP_APIMSG(&msg);
yueee_yt 0:7766f6712673 570
yueee_yt 0:7766f6712673 571 NETCONN_SET_SAFE_ERR(conn, err);
yueee_yt 0:7766f6712673 572 return err;
yueee_yt 0:7766f6712673 573 }
yueee_yt 0:7766f6712673 574
yueee_yt 0:7766f6712673 575 /**
yueee_yt 0:7766f6712673 576 * Send data over a TCP netconn.
yueee_yt 0:7766f6712673 577 *
yueee_yt 0:7766f6712673 578 * @param conn the TCP netconn over which to send data
yueee_yt 0:7766f6712673 579 * @param dataptr pointer to the application buffer that contains the data to send
yueee_yt 0:7766f6712673 580 * @param size size of the application data to send
yueee_yt 0:7766f6712673 581 * @param apiflags combination of following flags :
yueee_yt 0:7766f6712673 582 * - NETCONN_COPY: data will be copied into memory belonging to the stack
yueee_yt 0:7766f6712673 583 * - NETCONN_MORE: for TCP connection, PSH flag will be set on last segment sent
yueee_yt 0:7766f6712673 584 * - NETCONN_DONTBLOCK: only write the data if all dat can be written at once
yueee_yt 0:7766f6712673 585 * @return ERR_OK if data was sent, any other err_t on error
yueee_yt 0:7766f6712673 586 */
yueee_yt 0:7766f6712673 587 err_t
yueee_yt 0:7766f6712673 588 netconn_write(struct netconn *conn, const void *dataptr, size_t size, u8_t apiflags)
yueee_yt 0:7766f6712673 589 {
yueee_yt 0:7766f6712673 590 struct api_msg msg;
yueee_yt 0:7766f6712673 591 err_t err;
yueee_yt 0:7766f6712673 592
yueee_yt 0:7766f6712673 593 LWIP_ERROR("netconn_write: invalid conn", (conn != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 594 LWIP_ERROR("netconn_write: invalid conn->type", (conn->type == NETCONN_TCP), return ERR_VAL;);
yueee_yt 0:7766f6712673 595 if (size == 0) {
yueee_yt 0:7766f6712673 596 return ERR_OK;
yueee_yt 0:7766f6712673 597 }
yueee_yt 0:7766f6712673 598
yueee_yt 0:7766f6712673 599 /* @todo: for non-blocking write, check if 'size' would ever fit into
yueee_yt 0:7766f6712673 600 snd_queue or snd_buf */
yueee_yt 0:7766f6712673 601 msg.function = do_write;
yueee_yt 0:7766f6712673 602 msg.msg.conn = conn;
yueee_yt 0:7766f6712673 603 msg.msg.msg.w.dataptr = dataptr;
yueee_yt 0:7766f6712673 604 msg.msg.msg.w.apiflags = apiflags;
yueee_yt 0:7766f6712673 605 msg.msg.msg.w.len = size;
yueee_yt 0:7766f6712673 606 /* For locking the core: this _can_ be delayed on low memory/low send buffer,
yueee_yt 0:7766f6712673 607 but if it is, this is done inside api_msg.c:do_write(), so we can use the
yueee_yt 0:7766f6712673 608 non-blocking version here. */
yueee_yt 0:7766f6712673 609 err = TCPIP_APIMSG(&msg);
yueee_yt 0:7766f6712673 610
yueee_yt 0:7766f6712673 611 NETCONN_SET_SAFE_ERR(conn, err);
yueee_yt 0:7766f6712673 612 return err;
yueee_yt 0:7766f6712673 613 }
yueee_yt 0:7766f6712673 614
yueee_yt 0:7766f6712673 615 /**
yueee_yt 0:7766f6712673 616 * Close ot shutdown a TCP netconn (doesn't delete it).
yueee_yt 0:7766f6712673 617 *
yueee_yt 0:7766f6712673 618 * @param conn the TCP netconn to close or shutdown
yueee_yt 0:7766f6712673 619 * @param how fully close or only shutdown one side?
yueee_yt 0:7766f6712673 620 * @return ERR_OK if the netconn was closed, any other err_t on error
yueee_yt 0:7766f6712673 621 */
yueee_yt 0:7766f6712673 622 static err_t
yueee_yt 0:7766f6712673 623 netconn_close_shutdown(struct netconn *conn, u8_t how)
yueee_yt 0:7766f6712673 624 {
yueee_yt 0:7766f6712673 625 struct api_msg msg;
yueee_yt 0:7766f6712673 626 err_t err;
yueee_yt 0:7766f6712673 627
yueee_yt 0:7766f6712673 628 LWIP_ERROR("netconn_close: invalid conn", (conn != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 629
yueee_yt 0:7766f6712673 630 msg.function = do_close;
yueee_yt 0:7766f6712673 631 msg.msg.conn = conn;
yueee_yt 0:7766f6712673 632 /* shutting down both ends is the same as closing */
yueee_yt 0:7766f6712673 633 msg.msg.msg.sd.shut = how;
yueee_yt 0:7766f6712673 634 /* because of the LWIP_TCPIP_CORE_LOCKING implementation of do_close,
yueee_yt 0:7766f6712673 635 don't use TCPIP_APIMSG here */
yueee_yt 0:7766f6712673 636 err = tcpip_apimsg(&msg);
yueee_yt 0:7766f6712673 637
yueee_yt 0:7766f6712673 638 NETCONN_SET_SAFE_ERR(conn, err);
yueee_yt 0:7766f6712673 639 return err;
yueee_yt 0:7766f6712673 640 }
yueee_yt 0:7766f6712673 641
yueee_yt 0:7766f6712673 642 /**
yueee_yt 0:7766f6712673 643 * Close a TCP netconn (doesn't delete it).
yueee_yt 0:7766f6712673 644 *
yueee_yt 0:7766f6712673 645 * @param conn the TCP netconn to close
yueee_yt 0:7766f6712673 646 * @return ERR_OK if the netconn was closed, any other err_t on error
yueee_yt 0:7766f6712673 647 */
yueee_yt 0:7766f6712673 648 err_t
yueee_yt 0:7766f6712673 649 netconn_close(struct netconn *conn)
yueee_yt 0:7766f6712673 650 {
yueee_yt 0:7766f6712673 651 /* shutting down both ends is the same as closing */
yueee_yt 0:7766f6712673 652 return netconn_close_shutdown(conn, NETCONN_SHUT_RDWR);
yueee_yt 0:7766f6712673 653 }
yueee_yt 0:7766f6712673 654
yueee_yt 0:7766f6712673 655 /**
yueee_yt 0:7766f6712673 656 * Shut down one or both sides of a TCP netconn (doesn't delete it).
yueee_yt 0:7766f6712673 657 *
yueee_yt 0:7766f6712673 658 * @param conn the TCP netconn to shut down
yueee_yt 0:7766f6712673 659 * @return ERR_OK if the netconn was closed, any other err_t on error
yueee_yt 0:7766f6712673 660 */
yueee_yt 0:7766f6712673 661 err_t
yueee_yt 0:7766f6712673 662 netconn_shutdown(struct netconn *conn, u8_t shut_rx, u8_t shut_tx)
yueee_yt 0:7766f6712673 663 {
yueee_yt 0:7766f6712673 664 return netconn_close_shutdown(conn, (shut_rx ? NETCONN_SHUT_RD : 0) | (shut_tx ? NETCONN_SHUT_WR : 0));
yueee_yt 0:7766f6712673 665 }
yueee_yt 0:7766f6712673 666
yueee_yt 0:7766f6712673 667 #if LWIP_IGMP
yueee_yt 0:7766f6712673 668 /**
yueee_yt 0:7766f6712673 669 * Join multicast groups for UDP netconns.
yueee_yt 0:7766f6712673 670 *
yueee_yt 0:7766f6712673 671 * @param conn the UDP netconn for which to change multicast addresses
yueee_yt 0:7766f6712673 672 * @param multiaddr IP address of the multicast group to join or leave
yueee_yt 0:7766f6712673 673 * @param netif_addr the IP address of the network interface on which to send
yueee_yt 0:7766f6712673 674 * the igmp message
yueee_yt 0:7766f6712673 675 * @param join_or_leave flag whether to send a join- or leave-message
yueee_yt 0:7766f6712673 676 * @return ERR_OK if the action was taken, any err_t on error
yueee_yt 0:7766f6712673 677 */
yueee_yt 0:7766f6712673 678 err_t
yueee_yt 0:7766f6712673 679 netconn_join_leave_group(struct netconn *conn,
yueee_yt 0:7766f6712673 680 ip_addr_t *multiaddr,
yueee_yt 0:7766f6712673 681 ip_addr_t *netif_addr,
yueee_yt 0:7766f6712673 682 enum netconn_igmp join_or_leave)
yueee_yt 0:7766f6712673 683 {
yueee_yt 0:7766f6712673 684 struct api_msg msg;
yueee_yt 0:7766f6712673 685 err_t err;
yueee_yt 0:7766f6712673 686
yueee_yt 0:7766f6712673 687 LWIP_ERROR("netconn_join_leave_group: invalid conn", (conn != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 688
yueee_yt 0:7766f6712673 689 msg.function = do_join_leave_group;
yueee_yt 0:7766f6712673 690 msg.msg.conn = conn;
yueee_yt 0:7766f6712673 691 msg.msg.msg.jl.multiaddr = multiaddr;
yueee_yt 0:7766f6712673 692 msg.msg.msg.jl.netif_addr = netif_addr;
yueee_yt 0:7766f6712673 693 msg.msg.msg.jl.join_or_leave = join_or_leave;
yueee_yt 0:7766f6712673 694 err = TCPIP_APIMSG(&msg);
yueee_yt 0:7766f6712673 695
yueee_yt 0:7766f6712673 696 NETCONN_SET_SAFE_ERR(conn, err);
yueee_yt 0:7766f6712673 697 return err;
yueee_yt 0:7766f6712673 698 }
yueee_yt 0:7766f6712673 699 #endif /* LWIP_IGMP */
yueee_yt 0:7766f6712673 700
yueee_yt 0:7766f6712673 701 #if LWIP_DNS
yueee_yt 0:7766f6712673 702 /**
yueee_yt 0:7766f6712673 703 * Execute a DNS query, only one IP address is returned
yueee_yt 0:7766f6712673 704 *
yueee_yt 0:7766f6712673 705 * @param name a string representation of the DNS host name to query
yueee_yt 0:7766f6712673 706 * @param addr a preallocated ip_addr_t where to store the resolved IP address
yueee_yt 0:7766f6712673 707 * @return ERR_OK: resolving succeeded
yueee_yt 0:7766f6712673 708 * ERR_MEM: memory error, try again later
yueee_yt 0:7766f6712673 709 * ERR_ARG: dns client not initialized or invalid hostname
yueee_yt 0:7766f6712673 710 * ERR_VAL: dns server response was invalid
yueee_yt 0:7766f6712673 711 */
yueee_yt 0:7766f6712673 712 err_t
yueee_yt 0:7766f6712673 713 netconn_gethostbyname(const char *name, ip_addr_t *addr)
yueee_yt 0:7766f6712673 714 {
yueee_yt 0:7766f6712673 715 struct dns_api_msg msg;
yueee_yt 0:7766f6712673 716 err_t err;
yueee_yt 0:7766f6712673 717 sys_sem_t sem;
yueee_yt 0:7766f6712673 718
yueee_yt 0:7766f6712673 719 LWIP_ERROR("netconn_gethostbyname: invalid name", (name != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 720 LWIP_ERROR("netconn_gethostbyname: invalid addr", (addr != NULL), return ERR_ARG;);
yueee_yt 0:7766f6712673 721
yueee_yt 0:7766f6712673 722 err = sys_sem_new(&sem, 0);
yueee_yt 0:7766f6712673 723 if (err != ERR_OK) {
yueee_yt 0:7766f6712673 724 return err;
yueee_yt 0:7766f6712673 725 }
yueee_yt 0:7766f6712673 726
yueee_yt 0:7766f6712673 727 msg.name = name;
yueee_yt 0:7766f6712673 728 msg.addr = addr;
yueee_yt 0:7766f6712673 729 msg.err = &err;
yueee_yt 0:7766f6712673 730 msg.sem = &sem;
yueee_yt 0:7766f6712673 731
yueee_yt 0:7766f6712673 732 tcpip_callback(do_gethostbyname, &msg);
yueee_yt 0:7766f6712673 733 sys_sem_wait(&sem);
yueee_yt 0:7766f6712673 734 sys_sem_free(&sem);
yueee_yt 0:7766f6712673 735
yueee_yt 0:7766f6712673 736 return err;
yueee_yt 0:7766f6712673 737 }
yueee_yt 0:7766f6712673 738 #endif /* LWIP_DNS*/
yueee_yt 0:7766f6712673 739
yueee_yt 0:7766f6712673 740 #endif /* LWIP_NETCONN */