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1 | /* |
1 | /* |
2 | * Copyright (c) 2009 Lukas Mejdrech |
2 | * Copyright (c) 2009 Lukas Mejdrech |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup arp |
29 | /** @addtogroup arp |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | 32 | ||
33 | /** @file |
33 | /** @file |
34 | * ARP module implementation. |
34 | * ARP module implementation. |
35 | * @see arp.h |
35 | * @see arp.h |
36 | */ |
36 | */ |
37 | 37 | ||
38 | #include <async.h> |
38 | #include <async.h> |
39 | #include <malloc.h> |
39 | #include <malloc.h> |
40 | #include <mem.h> |
40 | #include <mem.h> |
41 | #include <rwlock.h> |
41 | #include <rwlock.h> |
42 | #include <stdio.h> |
42 | #include <stdio.h> |
43 | 43 | ||
44 | #include <ipc/ipc.h> |
44 | #include <ipc/ipc.h> |
45 | #include <ipc/services.h> |
45 | #include <ipc/services.h> |
46 | 46 | ||
47 | #include "../../err.h" |
47 | #include "../../err.h" |
48 | #include "../../messages.h" |
48 | #include "../../messages.h" |
49 | #include "../../modules.h" |
49 | #include "../../modules.h" |
50 | 50 | ||
51 | #include "../../include/byteorder.h" |
51 | #include "../../include/byteorder.h" |
52 | #include "../../include/device.h" |
52 | #include "../../include/device.h" |
- | 53 | #include "../../include/arp_messages.h" |
|
53 | #include "../../include/nil_messages.h" |
54 | #include "../../include/nil_messages.h" |
54 | #include "../../include/protocol_map.h" |
55 | #include "../../include/protocol_map.h" |
55 | 56 | ||
56 | #include "../../structures/measured_strings.h" |
57 | #include "../../structures/measured_strings.h" |
57 | #include "../../structures/packet/packet.h" |
58 | #include "../../structures/packet/packet.h" |
58 | #include "../../structures/packet/packet_client.h" |
59 | #include "../../structures/packet/packet_client.h" |
59 | 60 | ||
60 | #include "arp.h" |
61 | #include "arp.h" |
61 | #include "arp_header.h" |
62 | #include "arp_header.h" |
62 | #include "arp_oc.h" |
63 | #include "arp_oc.h" |
63 | //#include "arp_messages.h" |
- | |
64 | #include "arp_module.h" |
64 | #include "arp_module.h" |
65 | - | ||
66 | /** Returns the protocol service message parameter. |
65 | #include "arp_wrappers.h" |
67 | */ |
- | |
68 | #define ARP_GET_PROTO( call ) ( services_t ) IPC_GET_ARG2( * call ) |
- | |
69 | 66 | ||
70 | /** ARP global data. |
67 | /** ARP global data. |
71 | */ |
68 | */ |
72 | arp_globals_t arp_globals; |
69 | arp_globals_t arp_globals; |
73 | 70 | ||
74 | /** Creates new protocol specific data. |
71 | /** Creates new protocol specific data. |
75 | * @param proto Protocol specific data. Output parameter. |
72 | * @param proto Protocol specific data. Output parameter. |
76 | * @param service Protocol module service. Input parameter. |
73 | * @param service Protocol module service. Input parameter. |
77 | * @param address Actual protocol device address. Input parameter. |
74 | * @param address Actual protocol device address. Input parameter. |
78 | * @returns EOK on success. |
75 | * @returns EOK on success. |
79 | * @returns ENOMEM if there is not enough memory left. |
76 | * @returns ENOMEM if there is not enough memory left. |
80 | */ |
77 | */ |
81 | int arp_proto_create( arp_proto_ref * proto, services_t service, measured_string_ref address ); |
78 | int arp_proto_create( arp_proto_ref * proto, services_t service, measured_string_ref address ); |
82 | 79 | ||
83 | /** Registers the device. |
80 | /** Registers the device. |
84 | * Creates new device entry in the cache or updates the protocol address if the device with the device identifier and the driver service exists. |
81 | * Creates new device entry in the cache or updates the protocol address if the device with the device identifier and the driver service exists. |
85 | * @param device_id The device identifier. Input parameter. |
82 | * @param device_id The device identifier. Input parameter. |
86 | * @param service The device driver service. Input parameter. |
83 | * @param service The device driver service. Input parameter. |
87 | * @param protocol The protocol service. Input parameter. |
84 | * @param protocol The protocol service. Input parameter. |
88 | * @param address The actual device protocol address. |
85 | * @param address The actual device protocol address. |
89 | * @returns EOK on success. |
86 | * @returns EOK on success. |
90 | * @returns EEXIST if another device with the same device identifier and different driver service exists. |
87 | * @returns EEXIST if another device with the same device identifier and different driver service exists. |
91 | * @returns ENOMEM if there is not enough memory left. |
88 | * @returns ENOMEM if there is not enough memory left. |
92 | * @returns Other error codes as defined for the measured_strings_return() function. |
89 | * @returns Other error codes as defined for the measured_strings_return() function. |
93 | */ |
90 | */ |
94 | int arp_device_message( device_id_t device_id, services_t service, services_t protocol, measured_string_ref address ); |
91 | int arp_device_message( device_id_t device_id, services_t service, services_t protocol, measured_string_ref address ); |
95 | 92 | ||
96 | /** Returns the hardware address for the given protocol address. |
93 | /** Returns the hardware address for the given protocol address. |
97 | * Sends the ARP request packet if the hardware address is not found in the cache. |
94 | * Sends the ARP request packet if the hardware address is not found in the cache. |
98 | * @param device_id The device identifier. Input parameter. |
95 | * @param device_id The device identifier. Input parameter. |
99 | * @param protocol The protocol service. Input parameter. |
96 | * @param protocol The protocol service. Input parameter. |
100 | * @param target The target protocol address. Input parameter. |
97 | * @param target The target protocol address. Input parameter. |
101 | * @returns The hardware address of the target. |
98 | * @returns The hardware address of the target. |
102 | * @returns NULL if the target parameter is NULL. |
99 | * @returns NULL if the target parameter is NULL. |
103 | * @returns NULL if the device is not found. |
100 | * @returns NULL if the device is not found. |
104 | * @returns NULL if the device packet is too small to send a request. |
101 | * @returns NULL if the device packet is too small to send a request. |
105 | * @returns NULL if the hardware address is not found in the cache. |
102 | * @returns NULL if the hardware address is not found in the cache. |
106 | */ |
103 | */ |
107 | measured_string_ref arp_translate_message( device_id_t device_id, services_t protocol, measured_string_ref target ); |
104 | measured_string_ref arp_translate_message( device_id_t device_id, services_t protocol, measured_string_ref target ); |
108 | 105 | ||
109 | /** Processes the received ARP packet. |
106 | /** Processes the received ARP packet. |
110 | * Updates the source hardware address if the source entry exists or the packet is targeted to my protocol address. |
107 | * Updates the source hardware address if the source entry exists or the packet is targeted to my protocol address. |
111 | * Responses to the ARP request if the packet is the ARP request and is targeted to my address. |
108 | * Responses to the ARP request if the packet is the ARP request and is targeted to my address. |
112 | * @param device_id The source device identifier. Input parameter. |
109 | * @param device_id The source device identifier. Input parameter. |
113 | * @param packet The received packet. Input/output parameter. |
110 | * @param packet The received packet. Input/output parameter. |
114 | * @returns EOK on success. |
111 | * @returns EOK on success. |
115 | * @returns EINVAL if the packet is too small to carry the ARP packet. |
112 | * @returns EINVAL if the packet is too small to carry the ARP packet. |
116 | * @returns EINVAL if the received address lengths differs from the registered values. |
113 | * @returns EINVAL if the received address lengths differs from the registered values. |
117 | * @returns ENOENT if the device is not found in the cache. |
114 | * @returns ENOENT if the device is not found in the cache. |
118 | * @returns ENOENT if the protocol for the device is not found in the cache. |
115 | * @returns ENOENT if the protocol for the device is not found in the cache. |
119 | * @returns ENOMEM if there is not enough memory left. |
116 | * @returns ENOMEM if there is not enough memory left. |
120 | */ |
117 | */ |
121 | int arp_receive_message( device_id_t device_id, packet_t packet ); |
118 | int arp_receive_message( device_id_t device_id, packet_t packet ); |
122 | 119 | ||
123 | /** Clears the device specific data from the cache. |
- | |
124 | * @param device_id The device identifier. Input parameter. |
- | |
125 | * @returns EOK on success. |
- | |
126 | * @returns ENOENT if the device is not found in the cache. |
- | |
127 | */ |
- | |
128 | int arp_clear_device_message( device_id_t device_id ); |
- | |
129 | - | ||
130 | /** Clears the device specific data. |
120 | /** Clears the device specific data. |
131 | * @param device The device specific data. |
121 | * @param device The device specific data. |
132 | */ |
122 | */ |
133 | void clear_device( arp_device_ref device ); |
123 | void clear_device( arp_device_ref device ); |
134 | 124 | ||
135 | /** Clears the whole cache. |
- | |
136 | * @returns EOK on success. |
- | |
137 | */ |
- | |
138 | int arp_clean_cache_message( void ); |
- | |
139 | - | ||
140 | /** Processes IPC messages from the registered device driver modules in an infinite loop. |
125 | /** Processes IPC messages from the registered device driver modules in an infinite loop. |
141 | * @param iid The message identifier. Input parameter. |
126 | * @param iid The message identifier. Input parameter. |
142 | * @param icall The message parameters. Input/output parameter. |
127 | * @param icall The message parameters. Input/output parameter. |
143 | */ |
128 | */ |
144 | void arp_receiver( ipc_callid_t iid, ipc_call_t * icall ); |
129 | void arp_receiver( ipc_callid_t iid, ipc_call_t * icall ); |
145 | 130 | ||
146 | DEVICE_MAP_IMPLEMENT( arp_cache, arp_device_t ) |
131 | DEVICE_MAP_IMPLEMENT( arp_cache, arp_device_t ) |
147 | 132 | ||
148 | INT_MAP_IMPLEMENT( arp_protos, arp_proto_t ) |
133 | INT_MAP_IMPLEMENT( arp_protos, arp_proto_t ) |
149 | 134 | ||
150 | GENERIC_CHAR_MAP_IMPLEMENT( arp_addr, measured_string_t ) |
135 | GENERIC_CHAR_MAP_IMPLEMENT( arp_addr, measured_string_t ) |
151 | 136 | ||
- | 137 | int arp_clear_device_wrapper( device_id_t device_id ){ |
|
- | 138 | arp_device_ref device; |
|
- | 139 | ||
- | 140 | rwlock_write_lock( & arp_globals.lock ); |
|
- | 141 | device = arp_cache_find( & arp_globals.cache, device_id ); |
|
- | 142 | if( ! device ){ |
|
- | 143 | rwlock_write_unlock( & arp_globals.lock ); |
|
- | 144 | return ENOENT; |
|
- | 145 | } |
|
- | 146 | clear_device( device ); |
|
- | 147 | printf( "\nDevice %d cleared", device_id ); |
|
- | 148 | rwlock_write_unlock( & arp_globals.lock ); |
|
- | 149 | return EOK; |
|
- | 150 | } |
|
- | 151 | ||
- | 152 | int arp_clean_cache_wrapper( void ){ |
|
- | 153 | int count; |
|
- | 154 | arp_device_ref device; |
|
- | 155 | ||
- | 156 | rwlock_write_lock( & arp_globals.lock ); |
|
- | 157 | for( count = arp_cache_count( & arp_globals.cache ) - 1; count >= 0; -- count ){ |
|
- | 158 | device = arp_cache_get_index( & arp_globals.cache, count ); |
|
- | 159 | if( device ){ |
|
- | 160 | clear_device( device ); |
|
- | 161 | if( device->addr_data ) free( device->addr_data ); |
|
- | 162 | if( device->broadcast_data ) free( device->broadcast_data ); |
|
- | 163 | } |
|
- | 164 | } |
|
- | 165 | arp_cache_clear( & arp_globals.cache ); |
|
- | 166 | rwlock_write_unlock( & arp_globals.lock ); |
|
- | 167 | printf( "\nCache cleaned" ); |
|
- | 168 | return EOK; |
|
- | 169 | } |
|
- | 170 | ||
- | 171 | int arp_device_wrapper( device_id_t device_id, services_t protocol, services_t netif, measured_string_ref address ){ |
|
- | 172 | ERROR_DECLARE; |
|
- | 173 | ||
- | 174 | measured_string_ref tmp; |
|
- | 175 | ||
- | 176 | tmp = measured_string_copy( address ); |
|
- | 177 | if( ERROR_OCCURRED( arp_device_message( device_id, netif, protocol, tmp ))){ |
|
- | 178 | free( tmp->value ); |
|
- | 179 | free( tmp ); |
|
- | 180 | } |
|
- | 181 | return ERROR_CODE; |
|
- | 182 | } |
|
- | 183 | ||
- | 184 | int arp_translate_wrapper( device_id_t device_id, services_t protocol, measured_string_ref address, measured_string_ref * translation, char ** data ){ |
|
- | 185 | measured_string_ref tmp; |
|
- | 186 | ||
- | 187 | rwlock_read_lock( & arp_globals.lock ); |
|
- | 188 | tmp = arp_translate_message( device_id, protocol, address ); |
|
- | 189 | if( tmp ){ |
|
- | 190 | * translation = measured_string_copy( tmp ); |
|
- | 191 | rwlock_read_unlock( & arp_globals.lock ); |
|
- | 192 | if( * translation ){ |
|
- | 193 | * data = ( ** translation ).value; |
|
- | 194 | return EOK; |
|
- | 195 | }else{ |
|
- | 196 | return ENOMEM; |
|
- | 197 | } |
|
- | 198 | }else{ |
|
- | 199 | rwlock_read_unlock( & arp_globals.lock ); |
|
- | 200 | return ENOENT; |
|
- | 201 | } |
|
- | 202 | } |
|
- | 203 | ||
152 | int arp_initialize( void ){ |
204 | int arp_initialize( void ){ |
153 | ERROR_DECLARE; |
205 | ERROR_DECLARE; |
154 | 206 | ||
155 | rwlock_initialize( & arp_globals.lock ); |
207 | rwlock_initialize( & arp_globals.lock ); |
156 | rwlock_write_lock( & arp_globals.lock ); |
208 | rwlock_write_lock( & arp_globals.lock ); |
157 | ERROR_PROPAGATE( arp_cache_initialize( & arp_globals.cache )); |
209 | ERROR_PROPAGATE( arp_cache_initialize( & arp_globals.cache )); |
158 | rwlock_write_unlock( & arp_globals.lock ); |
210 | rwlock_write_unlock( & arp_globals.lock ); |
159 | return EOK; |
211 | return EOK; |
160 | } |
212 | } |
161 | 213 | ||
162 | int arp_proto_create( arp_proto_ref * proto, services_t service, measured_string_ref address ){ |
214 | int arp_proto_create( arp_proto_ref * proto, services_t service, measured_string_ref address ){ |
163 | ERROR_DECLARE; |
215 | ERROR_DECLARE; |
164 | 216 | ||
165 | * proto = ( arp_proto_ref ) malloc( sizeof( arp_proto_t )); |
217 | * proto = ( arp_proto_ref ) malloc( sizeof( arp_proto_t )); |
166 | if( !( * proto )) return ENOMEM; |
218 | if( !( * proto )) return ENOMEM; |
167 | ( ** proto ).service = service; |
219 | ( ** proto ).service = service; |
168 | ( ** proto ).addr = address; |
220 | ( ** proto ).addr = address; |
169 | ( ** proto ).addr_data = address->value; |
221 | ( ** proto ).addr_data = address->value; |
170 | if( ERROR_OCCURRED( arp_addr_initialize( &( ** proto).addresses ))){ |
222 | if( ERROR_OCCURRED( arp_addr_initialize( &( ** proto).addresses ))){ |
171 | free( * proto ); |
223 | free( * proto ); |
172 | return ERROR_CODE; |
224 | return ERROR_CODE; |
173 | } |
225 | } |
174 | return EOK; |
226 | return EOK; |
175 | } |
227 | } |
176 | 228 | ||
177 | int arp_device_message( device_id_t device_id, services_t service, services_t protocol, measured_string_ref address ){ |
229 | int arp_device_message( device_id_t device_id, services_t service, services_t protocol, measured_string_ref address ){ |
178 | ERROR_DECLARE; |
230 | ERROR_DECLARE; |
179 | 231 | ||
180 | arp_device_ref device; |
232 | arp_device_ref device; |
181 | arp_proto_ref proto; |
233 | arp_proto_ref proto; |
182 | int index; |
234 | int index; |
183 | 235 | ||
184 | rwlock_write_lock( & arp_globals.lock ); |
236 | rwlock_write_lock( & arp_globals.lock ); |
185 | // an existing device? |
237 | // an existing device? |
186 | device = arp_cache_find( & arp_globals.cache, device_id ); |
238 | device = arp_cache_find( & arp_globals.cache, device_id ); |
187 | if( device ){ |
239 | if( device ){ |
188 | if( device->service != service ){ |
240 | if( device->service != service ){ |
189 | printf( "\nDevice %d already exists", device->device_id ); |
241 | printf( "\nDevice %d already exists", device->device_id ); |
190 | rwlock_write_unlock( & arp_globals.lock ); |
242 | rwlock_write_unlock( & arp_globals.lock ); |
191 | return EEXIST; |
243 | return EEXIST; |
192 | } |
244 | } |
193 | proto = arp_protos_find( & device->protos, protocol ); |
245 | proto = arp_protos_find( & device->protos, protocol ); |
194 | if( proto ){ |
246 | if( proto ){ |
195 | free( proto->addr ); |
247 | free( proto->addr ); |
196 | free( proto->addr_data ); |
248 | free( proto->addr_data ); |
197 | proto->addr = address; |
249 | proto->addr = address; |
198 | proto->addr_data = address->value; |
250 | proto->addr_data = address->value; |
199 | }else{ |
251 | }else{ |
200 | if( ERROR_OCCURRED( arp_proto_create( & proto, protocol, address ))){ |
252 | if( ERROR_OCCURRED( arp_proto_create( & proto, protocol, address ))){ |
201 | rwlock_write_unlock( & arp_globals.lock ); |
253 | rwlock_write_unlock( & arp_globals.lock ); |
202 | return ERROR_CODE; |
254 | return ERROR_CODE; |
203 | } |
255 | } |
204 | index = arp_protos_add( & device->protos, proto->service, proto ); |
256 | index = arp_protos_add( & device->protos, proto->service, proto ); |
205 | if( index < 0 ){ |
257 | if( index < 0 ){ |
206 | rwlock_write_unlock( & arp_globals.lock ); |
258 | rwlock_write_unlock( & arp_globals.lock ); |
207 | free( proto ); |
259 | free( proto ); |
208 | return index; |
260 | return index; |
209 | } |
261 | } |
210 | } |
262 | } |
211 | printf( "\nCache of the existing device %d cleaned", device->device_id ); |
263 | printf( "\nCache of the existing device %d cleaned", device->device_id ); |
212 | }else{ |
264 | }else{ |
213 | index = hardware_map( service ); |
265 | index = hardware_map( service ); |
214 | if( ! index ) return ENOENT; |
266 | if( ! index ) return ENOENT; |
215 | // create a new device |
267 | // create a new device |
216 | device = ( arp_device_ref ) malloc( sizeof( arp_device_t )); |
268 | device = ( arp_device_ref ) malloc( sizeof( arp_device_t )); |
217 | if( ! device ){ |
269 | if( ! device ){ |
218 | rwlock_write_unlock( & arp_globals.lock ); |
270 | rwlock_write_unlock( & arp_globals.lock ); |
219 | return ENOMEM; |
271 | return ENOMEM; |
220 | } |
272 | } |
221 | device->hardware = index; |
273 | device->hardware = index; |
222 | device->device_id = device_id; |
274 | device->device_id = device_id; |
223 | if( ERROR_OCCURRED( arp_protos_initialize( & device->protos )) |
275 | if( ERROR_OCCURRED( arp_protos_initialize( & device->protos )) |
224 | || ERROR_OCCURRED( arp_proto_create( & proto, protocol, address ))){ |
276 | || ERROR_OCCURRED( arp_proto_create( & proto, protocol, address ))){ |
225 | rwlock_write_unlock( & arp_globals.lock ); |
277 | rwlock_write_unlock( & arp_globals.lock ); |
226 | free( device ); |
278 | free( device ); |
227 | return ERROR_CODE; |
279 | return ERROR_CODE; |
228 | } |
280 | } |
229 | index = arp_protos_add( & device->protos, proto->service, proto ); |
281 | index = arp_protos_add( & device->protos, proto->service, proto ); |
230 | if( index < 0 ){ |
282 | if( index < 0 ){ |
231 | rwlock_write_unlock( & arp_globals.lock ); |
283 | rwlock_write_unlock( & arp_globals.lock ); |
232 | arp_protos_destroy( & device->protos ); |
284 | arp_protos_destroy( & device->protos ); |
233 | free( device ); |
285 | free( device ); |
234 | return index; |
286 | return index; |
235 | } |
287 | } |
236 | device->service = service; |
288 | device->service = service; |
237 | // bind the new one |
289 | // bind the new one |
238 | device->phone = bind_service( device->service, device->device_id, SERVICE_ARP, 0, arp_receiver ); |
290 | device->phone = bind_service( device->service, device->device_id, SERVICE_ARP, 0, arp_receiver ); |
239 | if( device->phone < 0 ){ |
291 | if( device->phone < 0 ){ |
240 | rwlock_write_unlock( & arp_globals.lock ); |
292 | rwlock_write_unlock( & arp_globals.lock ); |
241 | arp_protos_destroy( & device->protos ); |
293 | arp_protos_destroy( & device->protos ); |
242 | free( device ); |
294 | free( device ); |
243 | return EREFUSED; |
295 | return EREFUSED; |
244 | } |
296 | } |
245 | // get packet dimensions |
297 | // get packet dimensions |
246 | if( ERROR_OCCURRED( nil_packet_size_req( device->phone, device_id, & device->addr_len, & device->prefix, & device->content, & device->suffix ))){ |
298 | if( ERROR_OCCURRED( nil_packet_size_req( device->phone, device_id, & device->addr_len, & device->prefix, & device->content, & device->suffix ))){ |
247 | rwlock_write_unlock( & arp_globals.lock ); |
299 | rwlock_write_unlock( & arp_globals.lock ); |
248 | arp_protos_destroy( & device->protos ); |
300 | arp_protos_destroy( & device->protos ); |
249 | free( device ); |
301 | free( device ); |
250 | return ERROR_CODE; |
302 | return ERROR_CODE; |
251 | } |
303 | } |
252 | // get hardware address |
304 | // get hardware address |
253 | if( ERROR_OCCURRED( nil_get_addr( device->phone, device_id, & device->addr, & device->addr_data ))){ |
305 | if( ERROR_OCCURRED( nil_get_addr( device->phone, device_id, & device->addr, & device->addr_data ))){ |
254 | rwlock_write_unlock( & arp_globals.lock ); |
306 | rwlock_write_unlock( & arp_globals.lock ); |
255 | arp_protos_destroy( & device->protos ); |
307 | arp_protos_destroy( & device->protos ); |
256 | free( device ); |
308 | free( device ); |
257 | return ERROR_CODE; |
309 | return ERROR_CODE; |
258 | } |
310 | } |
259 | // get broadcast address |
311 | // get broadcast address |
260 | if( ERROR_OCCURRED( nil_get_broadcast_addr( device->phone, device_id, & device->broadcast_addr, & device->broadcast_data ))){ |
312 | if( ERROR_OCCURRED( nil_get_broadcast_addr( device->phone, device_id, & device->broadcast_addr, & device->broadcast_data ))){ |
261 | rwlock_write_unlock( & arp_globals.lock ); |
313 | rwlock_write_unlock( & arp_globals.lock ); |
262 | free( device->addr ); |
314 | free( device->addr ); |
263 | free( device->addr_data ); |
315 | free( device->addr_data ); |
264 | arp_protos_destroy( & device->protos ); |
316 | arp_protos_destroy( & device->protos ); |
265 | free( device ); |
317 | free( device ); |
266 | return ERROR_CODE; |
318 | return ERROR_CODE; |
267 | } |
319 | } |
268 | if( ERROR_OCCURRED( arp_cache_add( & arp_globals.cache, device->device_id, device ))){ |
320 | if( ERROR_OCCURRED( arp_cache_add( & arp_globals.cache, device->device_id, device ))){ |
269 | rwlock_write_unlock( & arp_globals.lock ); |
321 | rwlock_write_unlock( & arp_globals.lock ); |
270 | free( device->addr ); |
322 | free( device->addr ); |
271 | free( device->addr_data ); |
323 | free( device->addr_data ); |
272 | free( device->broadcast_addr ); |
324 | free( device->broadcast_addr ); |
273 | free( device->broadcast_data ); |
325 | free( device->broadcast_data ); |
274 | arp_protos_destroy( & device->protos ); |
326 | arp_protos_destroy( & device->protos ); |
275 | free( device ); |
327 | free( device ); |
276 | return ERROR_CODE; |
328 | return ERROR_CODE; |
277 | } |
329 | } |
278 | printf( "\nNew device registered:\n\tid\t= %d\n\ttype\t= 0x%x\n\tservice\t= %d", device->device_id, device->hardware, device->service ); |
330 | printf( "\nNew device registered:\n\tid\t= %d\n\ttype\t= 0x%x\n\tservice\t= %d", device->device_id, device->hardware, device->service ); |
279 | } |
331 | } |
280 | rwlock_write_unlock( & arp_globals.lock ); |
332 | rwlock_write_unlock( & arp_globals.lock ); |
281 | return EOK; |
333 | return EOK; |
282 | } |
334 | } |
283 | 335 | ||
284 | measured_string_ref arp_translate_message( device_id_t device_id, services_t protocol, measured_string_ref target ){ |
336 | measured_string_ref arp_translate_message( device_id_t device_id, services_t protocol, measured_string_ref target ){ |
285 | arp_device_ref device; |
337 | arp_device_ref device; |
286 | arp_proto_ref proto; |
338 | arp_proto_ref proto; |
287 | measured_string_ref addr; |
339 | measured_string_ref addr; |
288 | size_t length; |
340 | size_t length; |
289 | packet_t packet; |
341 | packet_t packet; |
290 | arp_header_ref header; |
342 | arp_header_ref header; |
291 | 343 | ||
292 | if( ! target ) return NULL; |
344 | if( ! target ) return NULL; |
293 | device = arp_cache_find( & arp_globals.cache, device_id ); |
345 | device = arp_cache_find( & arp_globals.cache, device_id ); |
294 | if( ! device ) return NULL; |
346 | if( ! device ) return NULL; |
295 | proto = arp_protos_find( & device->protos, protocol ); |
347 | proto = arp_protos_find( & device->protos, protocol ); |
296 | if(( ! proto ) || ( proto->addr->length != target->length )) return NULL; |
348 | if(( ! proto ) || ( proto->addr->length != target->length )) return NULL; |
297 | addr = arp_addr_find( & proto->addresses, target->value, target->length ); |
349 | addr = arp_addr_find( & proto->addresses, target->value, target->length ); |
298 | if( addr ) return addr; |
350 | if( addr ) return addr; |
299 | // ARP packet content size = header + ( address + translation ) * 2 |
351 | // ARP packet content size = header + ( address + translation ) * 2 |
300 | length = 8 + ( CONVERT_SIZE( char, uint8_t, proto->addr->length ) + CONVERT_SIZE( char, uint8_t, device->addr->length )) * 2; |
352 | length = 8 + ( CONVERT_SIZE( char, uint8_t, proto->addr->length ) + CONVERT_SIZE( char, uint8_t, device->addr->length )) * 2; |
301 | if( length > device->content ) return NULL; |
353 | if( length > device->content ) return NULL; |
302 | packet = packet_get_4( arp_globals.networking_phone, device->addr_len, device->prefix, length, device->suffix ); |
354 | packet = packet_get_4( arp_globals.networking_phone, device->addr_len, device->prefix, length, device->suffix ); |
303 | if( ! packet ) return NULL; |
355 | if( ! packet ) return NULL; |
304 | header = ( arp_header_ref ) packet_suffix( packet, length ); |
356 | header = ( arp_header_ref ) packet_suffix( packet, length ); |
305 | header->hardware = htons( device->hardware ); |
357 | header->hardware = htons( device->hardware ); |
306 | header->hardware_length = device->addr->length; |
358 | header->hardware_length = device->addr->length; |
307 | header->protocol = htons( protocol_map( device->service, protocol )); |
359 | header->protocol = htons( protocol_map( device->service, protocol )); |
308 | header->protocol_length = proto->addr->length; |
360 | header->protocol_length = proto->addr->length; |
309 | header->operation = htons( ARPOP_REQUEST ); |
361 | header->operation = htons( ARPOP_REQUEST ); |
310 | length = sizeof( arp_header_t ); |
362 | length = sizeof( arp_header_t ); |
311 | memcpy((( uint8_t * ) header ) + length, device->addr->value, device->addr->length ); |
363 | memcpy((( uint8_t * ) header ) + length, device->addr->value, device->addr->length ); |
312 | length += device->addr->length; |
364 | length += device->addr->length; |
313 | memcpy((( uint8_t * ) header ) + length, proto->addr->value, proto->addr->length ); |
365 | memcpy((( uint8_t * ) header ) + length, proto->addr->value, proto->addr->length ); |
314 | length += proto->addr->length; |
366 | length += proto->addr->length; |
315 | bzero((( uint8_t * ) header ) + length, device->addr->length ); |
367 | bzero((( uint8_t * ) header ) + length, device->addr->length ); |
316 | length += device->addr->length; |
368 | length += device->addr->length; |
317 | memcpy((( uint8_t * ) header ) + length, target->value, target->length ); |
369 | memcpy((( uint8_t * ) header ) + length, target->value, target->length ); |
318 | packet_set_addr( packet, ( uint8_t * ) device->addr->value, ( uint8_t * ) device->broadcast_addr->value, CONVERT_SIZE( char, uint8_t, device->addr->length )); |
370 | packet_set_addr( packet, ( uint8_t * ) device->addr->value, ( uint8_t * ) device->broadcast_addr->value, CONVERT_SIZE( char, uint8_t, device->addr->length )); |
319 | nil_send_msg( device->phone, device_id, packet, SERVICE_ARP ); |
371 | nil_send_msg( device->phone, device_id, packet, SERVICE_ARP ); |
320 | return NULL; |
372 | return NULL; |
321 | } |
373 | } |
322 | 374 | ||
323 | int arp_receive_message( device_id_t device_id, packet_t packet ){ |
375 | int arp_receive_message( device_id_t device_id, packet_t packet ){ |
324 | ERROR_DECLARE; |
376 | ERROR_DECLARE; |
325 | 377 | ||
326 | size_t length; |
378 | size_t length; |
327 | arp_header_ref header; |
379 | arp_header_ref header; |
328 | arp_device_ref device; |
380 | arp_device_ref device; |
329 | arp_proto_ref proto; |
381 | arp_proto_ref proto; |
330 | measured_string_ref hw_source; |
382 | measured_string_ref hw_source; |
331 | uint8_t * src_hw; |
383 | uint8_t * src_hw; |
332 | uint8_t * src_proto; |
384 | uint8_t * src_proto; |
333 | uint8_t * des_hw; |
385 | uint8_t * des_hw; |
334 | uint8_t * des_proto; |
386 | uint8_t * des_proto; |
335 | 387 | ||
336 | length = packet_get_data_length( packet ); |
388 | length = packet_get_data_length( packet ); |
337 | if( length <= sizeof( arp_header_t )) return EINVAL; |
389 | if( length <= sizeof( arp_header_t )) return EINVAL; |
338 | device = arp_cache_find( & arp_globals.cache, device_id ); |
390 | device = arp_cache_find( & arp_globals.cache, device_id ); |
339 | if( ! device ) return ENOENT; |
391 | if( ! device ) return ENOENT; |
340 | header = ( arp_header_ref ) packet_get_data( packet ); |
392 | header = ( arp_header_ref ) packet_get_data( packet ); |
341 | if(( ntohs( header->hardware ) != device->hardware ) |
393 | if(( ntohs( header->hardware ) != device->hardware ) |
342 | || ( length < sizeof( arp_header_t ) + ( header->hardware_length + header->protocol_length ) * 2 )){ |
394 | || ( length < sizeof( arp_header_t ) + ( header->hardware_length + header->protocol_length ) * 2 )){ |
343 | return EINVAL; |
395 | return EINVAL; |
344 | } |
396 | } |
345 | proto = arp_protos_find( & device->protos, protocol_unmap( device->service, ntohs( header->protocol ))); |
397 | proto = arp_protos_find( & device->protos, protocol_unmap( device->service, ntohs( header->protocol ))); |
346 | if( ! proto ) return ENOENT; |
398 | if( ! proto ) return ENOENT; |
347 | src_hw = (( uint8_t * ) header ) + sizeof( arp_header_t ); |
399 | src_hw = (( uint8_t * ) header ) + sizeof( arp_header_t ); |
348 | src_proto = src_hw + header->hardware_length; |
400 | src_proto = src_hw + header->hardware_length; |
349 | des_hw = src_proto + header->protocol_length; |
401 | des_hw = src_proto + header->protocol_length; |
350 | des_proto = des_hw + header->hardware_length; |
402 | des_proto = des_hw + header->hardware_length; |
351 | hw_source = arp_addr_find( & proto->addresses, ( char * ) src_proto, CONVERT_SIZE( uint8_t, char, header->protocol_length )); |
403 | hw_source = arp_addr_find( & proto->addresses, ( char * ) src_proto, CONVERT_SIZE( uint8_t, char, header->protocol_length )); |
352 | // exists? |
404 | // exists? |
353 | if( hw_source ){ |
405 | if( hw_source ){ |
354 | if( hw_source->length != CONVERT_SIZE( uint8_t, char, header->hardware_length )){ |
406 | if( hw_source->length != CONVERT_SIZE( uint8_t, char, header->hardware_length )){ |
355 | return EINVAL; |
407 | return EINVAL; |
356 | } |
408 | } |
357 | memcpy( hw_source->value, src_hw, hw_source->length ); |
409 | memcpy( hw_source->value, src_hw, hw_source->length ); |
358 | } |
410 | } |
359 | // is my protocol address? |
411 | // is my protocol address? |
360 | if( proto->addr->length != CONVERT_SIZE( uint8_t, char, header->hardware_length )){ |
412 | if( proto->addr->length != CONVERT_SIZE( uint8_t, char, header->hardware_length )){ |
361 | return EINVAL; |
413 | return EINVAL; |
362 | } |
414 | } |
363 | if( ! strncmp( proto->addr->value, ( char * ) des_proto, proto->addr->length )){ |
415 | if( ! strncmp( proto->addr->value, ( char * ) des_proto, proto->addr->length )){ |
364 | // not already upadted? |
416 | // not already upadted? |
365 | if( ! hw_source ){ |
417 | if( ! hw_source ){ |
366 | hw_source = measured_string_create_bulk(( char * ) src_hw, CONVERT_SIZE( uint8_t, char, header->hardware_length )); |
418 | hw_source = measured_string_create_bulk(( char * ) src_hw, CONVERT_SIZE( uint8_t, char, header->hardware_length )); |
367 | if( ! hw_source ) return ENOMEM; |
419 | if( ! hw_source ) return ENOMEM; |
368 | ERROR_PROPAGATE( arp_addr_add( & proto->addresses, ( char * ) src_proto, CONVERT_SIZE( uint8_t, char, header->protocol_length ), hw_source )); |
420 | ERROR_PROPAGATE( arp_addr_add( & proto->addresses, ( char * ) src_proto, CONVERT_SIZE( uint8_t, char, header->protocol_length ), hw_source )); |
369 | } |
421 | } |
370 | if( ntohs( header->operation ) == ARPOP_REQUEST ){ |
422 | if( ntohs( header->operation ) == ARPOP_REQUEST ){ |
371 | header->operation = htons( ARPOP_REPLY ); |
423 | header->operation = htons( ARPOP_REPLY ); |
372 | memcpy( des_proto, src_proto, header->protocol_length ); |
424 | memcpy( des_proto, src_proto, header->protocol_length ); |
373 | memcpy( src_proto, proto->addr->value, header->protocol_length ); |
425 | memcpy( src_proto, proto->addr->value, header->protocol_length ); |
374 | memcpy( src_hw, des_hw, header->hardware_length ); |
426 | memcpy( src_hw, des_hw, header->hardware_length ); |
375 | memcpy( des_hw, hw_source->value, header->hardware_length ); |
427 | memcpy( des_hw, hw_source->value, header->hardware_length ); |
376 | packet_set_addr( packet, src_hw, des_hw, header->hardware_length ); |
428 | packet_set_addr( packet, src_hw, des_hw, header->hardware_length ); |
377 | nil_send_msg( device->phone, device_id, packet, SERVICE_ARP ); |
429 | nil_send_msg( device->phone, device_id, packet, SERVICE_ARP ); |
378 | }else{ |
430 | }else{ |
379 | pq_release( arp_globals.networking_phone, packet_get_id( packet )); |
431 | pq_release( arp_globals.networking_phone, packet_get_id( packet )); |
380 | } |
432 | } |
381 | } |
433 | } |
382 | return EOK; |
434 | return EOK; |
383 | } |
435 | } |
384 | 436 | ||
385 | int arp_clear_device_message( device_id_t device_id ){ |
- | |
386 | arp_device_ref device; |
- | |
387 | - | ||
388 | rwlock_write_lock( & arp_globals.lock ); |
- | |
389 | device = arp_cache_find( & arp_globals.cache, device_id ); |
- | |
390 | if( ! device ){ |
- | |
391 | rwlock_write_unlock( & arp_globals.lock ); |
- | |
392 | return ENOENT; |
- | |
393 | } |
- | |
394 | clear_device( device ); |
- | |
395 | printf( "\nDevice %d cleared", device_id ); |
- | |
396 | rwlock_write_unlock( & arp_globals.lock ); |
- | |
397 | return EOK; |
- | |
398 | } |
- | |
399 | - | ||
400 | void clear_device( arp_device_ref device ){ |
437 | void clear_device( arp_device_ref device ){ |
401 | int count; |
438 | int count; |
402 | arp_proto_ref proto; |
439 | arp_proto_ref proto; |
403 | 440 | ||
404 | for( count = arp_protos_count( & device->protos ) - 1; count >= 0; -- count ){ |
441 | for( count = arp_protos_count( & device->protos ) - 1; count >= 0; -- count ){ |
405 | proto = arp_protos_get_index( & device->protos, count ); |
442 | proto = arp_protos_get_index( & device->protos, count ); |
406 | if( proto ){ |
443 | if( proto ){ |
407 | if( proto->addr ) free( proto->addr ); |
444 | if( proto->addr ) free( proto->addr ); |
408 | if( proto->addr_data ) free( proto->addr_data ); |
445 | if( proto->addr_data ) free( proto->addr_data ); |
409 | arp_addr_destroy( & proto->addresses ); |
446 | arp_addr_destroy( & proto->addresses ); |
410 | } |
447 | } |
411 | } |
448 | } |
412 | arp_protos_clear( & device->protos ); |
449 | arp_protos_clear( & device->protos ); |
413 | } |
450 | } |
414 | 451 | ||
415 | int arp_clean_cache_message( void ){ |
- | |
416 | int count; |
- | |
417 | arp_device_ref device; |
- | |
418 | - | ||
419 | rwlock_write_lock( & arp_globals.lock ); |
- | |
420 | for( count = arp_cache_count( & arp_globals.cache ) - 1; count >= 0; -- count ){ |
- | |
421 | device = arp_cache_get_index( & arp_globals.cache, count ); |
- | |
422 | if( device ){ |
- | |
423 | clear_device( device ); |
- | |
424 | if( device->addr_data ) free( device->addr_data ); |
- | |
425 | if( device->broadcast_data ) free( device->broadcast_data ); |
- | |
426 | } |
- | |
427 | } |
- | |
428 | arp_cache_clear( & arp_globals.cache ); |
- | |
429 | rwlock_write_unlock( & arp_globals.lock ); |
- | |
430 | printf( "\nCache cleaned" ); |
- | |
431 | return EOK; |
- | |
432 | } |
- | |
433 | - | ||
434 | int arp_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
452 | int arp_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
435 | ERROR_DECLARE; |
453 | ERROR_DECLARE; |
436 | 454 | ||
437 | measured_string_ref address; |
455 | measured_string_ref address; |
438 | measured_string_ref translation; |
456 | measured_string_ref translation; |
439 | char * data; |
457 | char * data; |
440 | 458 | ||
441 | // printf( "\nmessage %d - %d", IPC_GET_METHOD( * call ), NET_ARP_FIRST ); |
459 | // printf( "\nmessage %d - %d", IPC_GET_METHOD( * call ), NET_ARP_FIRST ); |
442 | * answer_count = 0; |
460 | * answer_count = 0; |
443 | switch( IPC_GET_METHOD( * call )){ |
461 | switch( IPC_GET_METHOD( * call )){ |
444 | case IPC_M_PHONE_HUNGUP: |
462 | case IPC_M_PHONE_HUNGUP: |
445 | return EOK; |
463 | return EOK; |
446 | case NET_ARP_DEVICE: |
464 | case NET_ARP_DEVICE: |
447 | ERROR_PROPAGATE( measured_strings_receive( & address, & data, 1 )); |
465 | ERROR_PROPAGATE( measured_strings_receive( & address, & data, 1 )); |
448 | if( ERROR_OCCURRED( arp_device_message( IPC_GET_DEVICE( call ), IPC_GET_SERVICE( call ), ARP_GET_PROTO( call ), address ))){ |
466 | if( ERROR_OCCURRED( arp_device_message( IPC_GET_DEVICE( call ), IPC_GET_SERVICE( call ), ARP_GET_PROTO( call ), address ))){ |
449 | free( address ); |
467 | free( address ); |
450 | free( data ); |
468 | free( data ); |
451 | } |
469 | } |
452 | return ERROR_CODE; |
470 | return ERROR_CODE; |
453 | case NET_ARP_TRANSLATE: |
471 | case NET_ARP_TRANSLATE: |
454 | ERROR_PROPAGATE( measured_strings_receive( & address, & data, 1 )); |
472 | ERROR_PROPAGATE( measured_strings_receive( & address, & data, 1 )); |
455 | rwlock_read_lock( & arp_globals.lock ); |
473 | rwlock_read_lock( & arp_globals.lock ); |
456 | translation = arp_translate_message( IPC_GET_DEVICE( call ), ARP_GET_PROTO( call ), address ); |
474 | translation = arp_translate_message( IPC_GET_DEVICE( call ), ARP_GET_PROTO( call ), address ); |
457 | free( address ); |
475 | free( address ); |
458 | free( data ); |
476 | free( data ); |
459 | if( ! translation ){ |
477 | if( ! translation ){ |
460 | rwlock_read_unlock( & arp_globals.lock ); |
478 | rwlock_read_unlock( & arp_globals.lock ); |
461 | return ENOENT; |
479 | return ENOENT; |
462 | } |
480 | } |
463 | ERROR_CODE = measured_strings_reply( translation, 1 ); |
481 | ERROR_CODE = measured_strings_reply( translation, 1 ); |
464 | rwlock_read_unlock( & arp_globals.lock ); |
482 | rwlock_read_unlock( & arp_globals.lock ); |
465 | return ERROR_CODE; |
483 | return ERROR_CODE; |
466 | case NET_ARP_CLEAR_DEVICE: |
484 | case NET_ARP_CLEAR_DEVICE: |
467 | return arp_clear_device_message( IPC_GET_DEVICE( call )); |
485 | return arp_clear_device_wrapper( IPC_GET_DEVICE( call )); |
468 | case NET_ARP_CLEAN_CACHE: |
486 | case NET_ARP_CLEAN_CACHE: |
469 | return arp_clean_cache_message(); |
487 | return arp_clean_cache_wrapper(); |
470 | } |
488 | } |
471 | return ENOTSUP; |
489 | return ENOTSUP; |
472 | } |
490 | } |
473 | 491 | ||
474 | void arp_receiver( ipc_callid_t iid, ipc_call_t * icall ){ |
492 | void arp_receiver( ipc_callid_t iid, ipc_call_t * icall ){ |
475 | ERROR_DECLARE; |
493 | ERROR_DECLARE; |
476 | 494 | ||
477 | packet_t packet; |
495 | packet_t packet; |
478 | 496 | ||
479 | while( true ){ |
497 | while( true ){ |
480 | switch( IPC_GET_METHOD( * icall )){ |
498 | switch( IPC_GET_METHOD( * icall )){ |
481 | case NET_IL_DEVICE_STATE: |
499 | case NET_IL_DEVICE_STATE: |
482 | // do nothing - keep the cache |
500 | // do nothing - keep the cache |
483 | ipc_answer_0( iid, EOK ); |
501 | ipc_answer_0( iid, EOK ); |
484 | break; |
502 | break; |
485 | case NET_IL_RECEIVED: |
503 | case NET_IL_RECEIVED: |
486 | if( ! ERROR_OCCURRED( packet_translate( arp_globals.networking_phone, & packet, IPC_GET_PACKET( icall )))){ |
504 | if( ! ERROR_OCCURRED( packet_translate( arp_globals.networking_phone, & packet, IPC_GET_PACKET( icall )))){ |
487 | rwlock_read_lock( & arp_globals.lock ); |
505 | rwlock_read_lock( & arp_globals.lock ); |
488 | ERROR_CODE = arp_receive_message( IPC_GET_DEVICE( icall ), packet ); |
506 | ERROR_CODE = arp_receive_message( IPC_GET_DEVICE( icall ), packet ); |
489 | rwlock_read_unlock( & arp_globals.lock ); |
507 | rwlock_read_unlock( & arp_globals.lock ); |
490 | } |
508 | } |
491 | ipc_answer_0( iid, ERROR_CODE ); |
509 | ipc_answer_0( iid, ERROR_CODE ); |
492 | break; |
510 | break; |
493 | default: |
511 | default: |
494 | ipc_answer_0( iid, ENOTSUP ); |
512 | ipc_answer_0( iid, ENOTSUP ); |
495 | } |
513 | } |
496 | iid = async_get_call( icall ); |
514 | iid = async_get_call( icall ); |
497 | } |
515 | } |
498 | } |
516 | } |
499 | 517 | ||
500 | /** @} |
518 | /** @} |
501 | */ |
519 | */ |
502 | 520 |