3 * Network Interface Sequential API module
5 * @defgroup netifapi NETIF API
6 * @ingroup sequential_api
7 * Thread-safe functions to be called from non-TCPIP threads
9 * @defgroup netifapi_netif NETIF related
11 * To be called from non-TCPIP threads
15 * Redistribution and use in source and binary forms, with or without modification,
16 * are permitted provided that the following conditions are met:
18 * 1. Redistributions of source code must retain the above copyright notice,
19 * this list of conditions and the following disclaimer.
20 * 2. Redistributions in binary form must reproduce the above copyright notice,
21 * this list of conditions and the following disclaimer in the documentation
22 * and/or other materials provided with the distribution.
23 * 3. The name of the author may not be used to endorse or promote products
24 * derived from this software without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
28 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
29 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
30 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
31 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
34 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
37 * This file is part of the lwIP TCP/IP stack.
43 #if LWIP_NETIF_API /* don't build if not configured for use in lwipopts.h */
45 #include "lwip/netifapi.h"
46 #include "lwip/memp.h"
47 #include "lwip/priv/tcpip_priv.h"
49 #include <string.h> /* strncpy */
51 #define NETIFAPI_VAR_REF(name) API_VAR_REF(name)
52 #define NETIFAPI_VAR_DECLARE(name) API_VAR_DECLARE(struct netifapi_msg, name)
53 #define NETIFAPI_VAR_ALLOC(name) API_VAR_ALLOC(struct netifapi_msg, MEMP_NETIFAPI_MSG, name, ERR_MEM)
54 #define NETIFAPI_VAR_FREE(name) API_VAR_FREE(MEMP_NETIFAPI_MSG, name)
57 * Call netif_add() inside the tcpip_thread context.
60 netifapi_do_netif_add(struct tcpip_api_call_data *m)
62 /* cast through void* to silence alignment warnings.
63 * We know it works because the structs have been instantiated as struct netifapi_msg */
64 struct netifapi_msg *msg = (struct netifapi_msg*)(void*)m;
66 if (!netif_add( msg->netif,
68 API_EXPR_REF(msg->msg.add.ipaddr),
69 API_EXPR_REF(msg->msg.add.netmask),
70 API_EXPR_REF(msg->msg.add.gw),
71 #endif /* LWIP_IPV4 */
74 msg->msg.add.input)) {
83 * Call netif_set_addr() inside the tcpip_thread context.
86 netifapi_do_netif_set_addr(struct tcpip_api_call_data *m)
88 /* cast through void* to silence alignment warnings.
89 * We know it works because the structs have been instantiated as struct netifapi_msg */
90 struct netifapi_msg *msg = (struct netifapi_msg*)(void*)m;
92 netif_set_addr( msg->netif,
93 API_EXPR_REF(msg->msg.add.ipaddr),
94 API_EXPR_REF(msg->msg.add.netmask),
95 API_EXPR_REF(msg->msg.add.gw));
98 #endif /* LWIP_IPV4 */
101 * Call netif_name_to_index() inside the tcpip_thread context.
104 netifapi_do_name_to_index(struct tcpip_api_call_data *m)
106 /* cast through void* to silence alignment warnings.
107 * We know it works because the structs have been instantiated as struct netifapi_msg */
108 struct netifapi_msg *msg = (struct netifapi_msg*)(void*)m;
110 msg->msg.ifs.index = netif_name_to_index(msg->msg.ifs.name);
115 * Call netif_index_to_name() inside the tcpip_thread context.
118 netifapi_do_index_to_name(struct tcpip_api_call_data *m)
120 /* cast through void* to silence alignment warnings.
121 * We know it works because the structs have been instantiated as struct netifapi_msg */
122 struct netifapi_msg *msg = (struct netifapi_msg*)(void*)m;
124 if (!netif_index_to_name(msg->msg.ifs.index, msg->msg.ifs.name)) {
125 /* return failure via empty name */
126 msg->msg.ifs.name[0] = '\0';
132 * Call the "errtfunc" (or the "voidfunc" if "errtfunc" is NULL) inside the
133 * tcpip_thread context.
136 netifapi_do_netif_common(struct tcpip_api_call_data *m)
138 /* cast through void* to silence alignment warnings.
139 * We know it works because the structs have been instantiated as struct netifapi_msg */
140 struct netifapi_msg *msg = (struct netifapi_msg*)(void*)m;
142 if (msg->msg.common.errtfunc != NULL) {
143 return msg->msg.common.errtfunc(msg->netif);
145 msg->msg.common.voidfunc(msg->netif);
151 * @ingroup netifapi_netif
152 * Call netif_add() in a thread-safe way by running that function inside the
153 * tcpip_thread context.
155 * @note for params @see netif_add()
158 netifapi_netif_add(struct netif *netif,
160 const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw,
161 #endif /* LWIP_IPV4 */
162 void *state, netif_init_fn init, netif_input_fn input)
165 NETIFAPI_VAR_DECLARE(msg);
166 NETIFAPI_VAR_ALLOC(msg);
169 if (ipaddr == NULL) {
170 ipaddr = IP4_ADDR_ANY4;
172 if (netmask == NULL) {
173 netmask = IP4_ADDR_ANY4;
178 #endif /* LWIP_IPV4 */
180 NETIFAPI_VAR_REF(msg).netif = netif;
182 NETIFAPI_VAR_REF(msg).msg.add.ipaddr = NETIFAPI_VAR_REF(ipaddr);
183 NETIFAPI_VAR_REF(msg).msg.add.netmask = NETIFAPI_VAR_REF(netmask);
184 NETIFAPI_VAR_REF(msg).msg.add.gw = NETIFAPI_VAR_REF(gw);
185 #endif /* LWIP_IPV4 */
186 NETIFAPI_VAR_REF(msg).msg.add.state = state;
187 NETIFAPI_VAR_REF(msg).msg.add.init = init;
188 NETIFAPI_VAR_REF(msg).msg.add.input = input;
189 err = tcpip_api_call(netifapi_do_netif_add, &API_VAR_REF(msg).call);
190 NETIFAPI_VAR_FREE(msg);
196 * @ingroup netifapi_netif
197 * Call netif_set_addr() in a thread-safe way by running that function inside the
198 * tcpip_thread context.
200 * @note for params @see netif_set_addr()
203 netifapi_netif_set_addr(struct netif *netif,
204 const ip4_addr_t *ipaddr,
205 const ip4_addr_t *netmask,
206 const ip4_addr_t *gw)
209 NETIFAPI_VAR_DECLARE(msg);
210 NETIFAPI_VAR_ALLOC(msg);
212 if (ipaddr == NULL) {
213 ipaddr = IP4_ADDR_ANY4;
215 if (netmask == NULL) {
216 netmask = IP4_ADDR_ANY4;
222 NETIFAPI_VAR_REF(msg).netif = netif;
223 NETIFAPI_VAR_REF(msg).msg.add.ipaddr = NETIFAPI_VAR_REF(ipaddr);
224 NETIFAPI_VAR_REF(msg).msg.add.netmask = NETIFAPI_VAR_REF(netmask);
225 NETIFAPI_VAR_REF(msg).msg.add.gw = NETIFAPI_VAR_REF(gw);
226 err = tcpip_api_call(netifapi_do_netif_set_addr, &API_VAR_REF(msg).call);
227 NETIFAPI_VAR_FREE(msg);
230 #endif /* LWIP_IPV4 */
233 * call the "errtfunc" (or the "voidfunc" if "errtfunc" is NULL) in a thread-safe
234 * way by running that function inside the tcpip_thread context.
236 * @note use only for functions where there is only "netif" parameter.
239 netifapi_netif_common(struct netif *netif, netifapi_void_fn voidfunc,
240 netifapi_errt_fn errtfunc)
243 NETIFAPI_VAR_DECLARE(msg);
244 NETIFAPI_VAR_ALLOC(msg);
246 NETIFAPI_VAR_REF(msg).netif = netif;
247 NETIFAPI_VAR_REF(msg).msg.common.voidfunc = voidfunc;
248 NETIFAPI_VAR_REF(msg).msg.common.errtfunc = errtfunc;
249 err = tcpip_api_call(netifapi_do_netif_common, &API_VAR_REF(msg).call);
250 NETIFAPI_VAR_FREE(msg);
255 * @ingroup netifapi_netif
256 * Call netif_name_to_index() in a thread-safe way by running that function inside the
257 * tcpip_thread context.
259 * @param name the interface name of the netif
260 * @param index output index of the found netif
263 netifapi_netif_name_to_index(const char *name, u8_t *index)
266 NETIFAPI_VAR_DECLARE(msg);
267 NETIFAPI_VAR_ALLOC(msg);
271 #if LWIP_MPU_COMPATIBLE
272 strncpy(NETIFAPI_VAR_REF(msg).msg.ifs.name, name, IF_NAMESIZE - 1);
273 NETIFAPI_VAR_REF(msg).msg.ifs.name[IF_NAMESIZE - 1] = '\0';
275 NETIFAPI_VAR_REF(msg).msg.ifs.name = (char *)name;
276 #endif /* LWIP_MPU_COMPATIBLE */
277 err = tcpip_api_call(netifapi_do_name_to_index, &API_VAR_REF(msg).call);
279 *index = NETIFAPI_VAR_REF(msg).msg.ifs.index;
281 NETIFAPI_VAR_FREE(msg);
286 * @ingroup netifapi_netif
287 * Call netif_index_to_name() in a thread-safe way by running that function inside the
288 * tcpip_thread context.
290 * @param index the interface index of the netif
291 * @param name output name of the found netif, empty '\0' string if netif not found.
292 * name should be of at least IF_NAMESIZE bytes
295 netifapi_netif_index_to_name(u8_t index, char *name)
298 NETIFAPI_VAR_DECLARE(msg);
299 NETIFAPI_VAR_ALLOC(msg);
301 NETIFAPI_VAR_REF(msg).msg.ifs.index = index;
302 #if !LWIP_MPU_COMPATIBLE
303 NETIFAPI_VAR_REF(msg).msg.ifs.name = name;
304 #endif /* LWIP_MPU_COMPATIBLE */
305 err = tcpip_api_call(netifapi_do_index_to_name, &API_VAR_REF(msg).call);
306 #if LWIP_MPU_COMPATIBLE
308 strncpy(name, NETIFAPI_VAR_REF(msg).msg.ifs.name, IF_NAMESIZE - 1);
309 name[IF_NAMESIZE - 1] = '\0';
311 #endif /* LWIP_MPU_COMPATIBLE */
312 NETIFAPI_VAR_FREE(msg);
316 #endif /* LWIP_NETIF_API */