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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 | #include <string.h> |
|
43 | #include <task.h> |
44 | #include <task.h> |
44 | 45 | ||
45 | #include <ipc/ipc.h> |
46 | #include <ipc/ipc.h> |
46 | #include <ipc/services.h> |
47 | #include <ipc/services.h> |
47 | 48 | ||
48 | #include "../../err.h" |
49 | #include "../../err.h" |
49 | #include "../../messages.h" |
50 | #include "../../messages.h" |
50 | #include "../../modules.h" |
51 | #include "../../modules.h" |
51 | 52 | ||
52 | #include "../../include/byteorder.h" |
53 | #include "../../include/byteorder.h" |
53 | #include "../../include/device.h" |
54 | #include "../../include/device.h" |
54 | #include "../../include/arp_interface.h" |
55 | #include "../../include/arp_interface.h" |
55 | #include "../../include/nil_interface.h" |
56 | #include "../../include/nil_interface.h" |
56 | #include "../../include/protocol_map.h" |
57 | #include "../../include/protocol_map.h" |
57 | 58 | ||
58 | #include "../../structures/measured_strings.h" |
59 | #include "../../structures/measured_strings.h" |
59 | #include "../../structures/packet/packet.h" |
60 | #include "../../structures/packet/packet.h" |
60 | #include "../../structures/packet/packet_client.h" |
61 | #include "../../structures/packet/packet_client.h" |
61 | 62 | ||
62 | #include "../il_messages.h" |
63 | #include "../il_messages.h" |
63 | 64 | ||
64 | #include "arp.h" |
65 | #include "arp.h" |
65 | #include "arp_header.h" |
66 | #include "arp_header.h" |
66 | #include "arp_oc.h" |
67 | #include "arp_oc.h" |
67 | #include "arp_module.h" |
68 | #include "arp_module.h" |
68 | #include "arp_messages.h" |
69 | #include "arp_messages.h" |
69 | 70 | ||
70 | /** ARP global data. |
71 | /** ARP global data. |
71 | */ |
72 | */ |
72 | arp_globals_t arp_globals; |
73 | arp_globals_t arp_globals; |
73 | 74 | ||
74 | int arp_device_req( int arp_phone, device_id_t device_id, services_t protocol, services_t netif, measured_string_ref address ); |
75 | int arp_device_req( int arp_phone, device_id_t device_id, services_t protocol, services_t netif, measured_string_ref address ); |
75 | int arp_translate_req( int arp_phone, device_id_t device_id, services_t protocol, measured_string_ref address, measured_string_ref * translation, char ** data ); |
76 | int arp_translate_req( int arp_phone, device_id_t device_id, services_t protocol, measured_string_ref address, measured_string_ref * translation, char ** data ); |
76 | 77 | ||
77 | /** Clears the whole cache. |
78 | /** Clears the whole cache. |
78 | * @returns EOK on success. |
79 | * @returns EOK on success. |
79 | */ |
80 | */ |
80 | int arp_clean_cache_req( int arp_phone ); |
81 | int arp_clean_cache_req( int arp_phone ); |
81 | 82 | ||
82 | /** Clears the device specific data from the cache. |
83 | /** Clears the device specific data from the cache. |
83 | * @param device_id The device identifier. Input parameter. |
84 | * @param device_id The device identifier. Input parameter. |
84 | * @returns EOK on success. |
85 | * @returns EOK on success. |
85 | * @returns ENOENT if the device is not found in the cache. |
86 | * @returns ENOENT if the device is not found in the cache. |
86 | */ |
87 | */ |
87 | int arp_clear_device_req( int arp_phone, device_id_t device_id ); |
88 | int arp_clear_device_req( int arp_phone, device_id_t device_id ); |
88 | 89 | ||
89 | /** Creates new protocol specific data. |
90 | /** Creates new protocol specific data. |
90 | * @param proto Protocol specific data. Output parameter. |
91 | * @param proto Protocol specific data. Output parameter. |
91 | * @param service Protocol module service. Input parameter. |
92 | * @param service Protocol module service. Input parameter. |
92 | * @param address Actual protocol device address. Input parameter. |
93 | * @param address Actual protocol device address. Input parameter. |
93 | * @returns EOK on success. |
94 | * @returns EOK on success. |
94 | * @returns ENOMEM if there is not enough memory left. |
95 | * @returns ENOMEM if there is not enough memory left. |
95 | */ |
96 | */ |
96 | int arp_proto_create( arp_proto_ref * proto, services_t service, measured_string_ref address ); |
97 | int arp_proto_create( arp_proto_ref * proto, services_t service, measured_string_ref address ); |
97 | 98 | ||
98 | /** Registers the device. |
99 | /** Registers the device. |
99 | * Creates new device entry in the cache or updates the protocol address if the device with the device identifier and the driver service exists. |
100 | * Creates new device entry in the cache or updates the protocol address if the device with the device identifier and the driver service exists. |
100 | * @param device_id The device identifier. Input parameter. |
101 | * @param device_id The device identifier. Input parameter. |
101 | * @param service The device driver service. Input parameter. |
102 | * @param service The device driver service. Input parameter. |
102 | * @param protocol The protocol service. Input parameter. |
103 | * @param protocol The protocol service. Input parameter. |
103 | * @param address The actual device protocol address. |
104 | * @param address The actual device protocol address. |
104 | * @returns EOK on success. |
105 | * @returns EOK on success. |
105 | * @returns EEXIST if another device with the same device identifier and different driver service exists. |
106 | * @returns EEXIST if another device with the same device identifier and different driver service exists. |
106 | * @returns ENOMEM if there is not enough memory left. |
107 | * @returns ENOMEM if there is not enough memory left. |
107 | * @returns Other error codes as defined for the measured_strings_return() function. |
108 | * @returns Other error codes as defined for the measured_strings_return() function. |
108 | */ |
109 | */ |
109 | int arp_device_message( device_id_t device_id, services_t service, services_t protocol, measured_string_ref address ); |
110 | int arp_device_message( device_id_t device_id, services_t service, services_t protocol, measured_string_ref address ); |
110 | 111 | ||
111 | /** Returns the hardware address for the given protocol address. |
112 | /** Returns the hardware address for the given protocol address. |
112 | * Sends the ARP request packet if the hardware address is not found in the cache. |
113 | * Sends the ARP request packet if the hardware address is not found in the cache. |
113 | * @param device_id The device identifier. Input parameter. |
114 | * @param device_id The device identifier. Input parameter. |
114 | * @param protocol The protocol service. Input parameter. |
115 | * @param protocol The protocol service. Input parameter. |
115 | * @param target The target protocol address. Input parameter. |
116 | * @param target The target protocol address. Input parameter. |
116 | * @returns The hardware address of the target. |
117 | * @returns The hardware address of the target. |
117 | * @returns NULL if the target parameter is NULL. |
118 | * @returns NULL if the target parameter is NULL. |
118 | * @returns NULL if the device is not found. |
119 | * @returns NULL if the device is not found. |
119 | * @returns NULL if the device packet is too small to send a request. |
120 | * @returns NULL if the device packet is too small to send a request. |
120 | * @returns NULL if the hardware address is not found in the cache. |
121 | * @returns NULL if the hardware address is not found in the cache. |
121 | */ |
122 | */ |
122 | measured_string_ref arp_translate_message( device_id_t device_id, services_t protocol, measured_string_ref target ); |
123 | measured_string_ref arp_translate_message( device_id_t device_id, services_t protocol, measured_string_ref target ); |
123 | 124 | ||
124 | /** Processes the received ARP packet. |
125 | /** Processes the received ARP packet. |
125 | * Updates the source hardware address if the source entry exists or the packet is targeted to my protocol address. |
126 | * Updates the source hardware address if the source entry exists or the packet is targeted to my protocol address. |
126 | * Responses to the ARP request if the packet is the ARP request and is targeted to my address. |
127 | * Responses to the ARP request if the packet is the ARP request and is targeted to my address. |
127 | * @param device_id The source device identifier. Input parameter. |
128 | * @param device_id The source device identifier. Input parameter. |
128 | * @param packet The received packet. Input/output parameter. |
129 | * @param packet The received packet. Input/output parameter. |
129 | * @returns EOK on success. |
130 | * @returns EOK on success. |
130 | * @returns EINVAL if the packet is too small to carry the ARP packet. |
131 | * @returns EINVAL if the packet is too small to carry the ARP packet. |
131 | * @returns EINVAL if the received address lengths differs from the registered values. |
132 | * @returns EINVAL if the received address lengths differs from the registered values. |
132 | * @returns ENOENT if the device is not found in the cache. |
133 | * @returns ENOENT if the device is not found in the cache. |
133 | * @returns ENOENT if the protocol for the device is not found in the cache. |
134 | * @returns ENOENT if the protocol for the device is not found in the cache. |
134 | * @returns ENOMEM if there is not enough memory left. |
135 | * @returns ENOMEM if there is not enough memory left. |
135 | */ |
136 | */ |
136 | int arp_receive_message( device_id_t device_id, packet_t packet ); |
137 | int arp_receive_message( device_id_t device_id, packet_t packet ); |
137 | 138 | ||
138 | /** Clears the device specific data. |
139 | /** Clears the device specific data. |
139 | * @param device The device specific data. |
140 | * @param device The device specific data. |
140 | */ |
141 | */ |
141 | void clear_device( arp_device_ref device ); |
142 | void clear_device( arp_device_ref device ); |
142 | 143 | ||
143 | /** Processes IPC messages from the registered device driver modules in an infinite loop. |
144 | /** Processes IPC messages from the registered device driver modules in an infinite loop. |
144 | * @param iid The message identifier. Input parameter. |
145 | * @param iid The message identifier. Input parameter. |
145 | * @param icall The message parameters. Input/output parameter. |
146 | * @param icall The message parameters. Input/output parameter. |
146 | */ |
147 | */ |
147 | void arp_receiver( ipc_callid_t iid, ipc_call_t * icall ); |
148 | void arp_receiver( ipc_callid_t iid, ipc_call_t * icall ); |
148 | 149 | ||
149 | DEVICE_MAP_IMPLEMENT( arp_cache, arp_device_t ) |
150 | DEVICE_MAP_IMPLEMENT( arp_cache, arp_device_t ) |
150 | 151 | ||
151 | INT_MAP_IMPLEMENT( arp_protos, arp_proto_t ) |
152 | INT_MAP_IMPLEMENT( arp_protos, arp_proto_t ) |
152 | 153 | ||
153 | GENERIC_CHAR_MAP_IMPLEMENT( arp_addr, measured_string_t ) |
154 | GENERIC_CHAR_MAP_IMPLEMENT( arp_addr, measured_string_t ) |
154 | 155 | ||
155 | int arp_task_get_id( void ){ |
156 | int arp_task_get_id( void ){ |
156 | return task_get_id(); |
157 | return task_get_id(); |
157 | } |
158 | } |
158 | 159 | ||
159 | int arp_clear_device_req( int arp_phone, device_id_t device_id ){ |
160 | int arp_clear_device_req( int arp_phone, device_id_t device_id ){ |
160 | arp_device_ref device; |
161 | arp_device_ref device; |
161 | 162 | ||
162 | rwlock_write_lock( & arp_globals.lock ); |
163 | rwlock_write_lock( & arp_globals.lock ); |
163 | device = arp_cache_find( & arp_globals.cache, device_id ); |
164 | device = arp_cache_find( & arp_globals.cache, device_id ); |
164 | if( ! device ){ |
165 | if( ! device ){ |
165 | rwlock_write_unlock( & arp_globals.lock ); |
166 | rwlock_write_unlock( & arp_globals.lock ); |
166 | return ENOENT; |
167 | return ENOENT; |
167 | } |
168 | } |
168 | clear_device( device ); |
169 | clear_device( device ); |
169 | printf( "Device %d cleared\n", device_id ); |
170 | printf( "Device %d cleared\n", device_id ); |
170 | rwlock_write_unlock( & arp_globals.lock ); |
171 | rwlock_write_unlock( & arp_globals.lock ); |
171 | return EOK; |
172 | return EOK; |
172 | } |
173 | } |
173 | 174 | ||
174 | int arp_clean_cache_req( int arp_phone ){ |
175 | int arp_clean_cache_req( int arp_phone ){ |
175 | int count; |
176 | int count; |
176 | arp_device_ref device; |
177 | arp_device_ref device; |
177 | 178 | ||
178 | rwlock_write_lock( & arp_globals.lock ); |
179 | rwlock_write_lock( & arp_globals.lock ); |
179 | for( count = arp_cache_count( & arp_globals.cache ) - 1; count >= 0; -- count ){ |
180 | for( count = arp_cache_count( & arp_globals.cache ) - 1; count >= 0; -- count ){ |
180 | device = arp_cache_get_index( & arp_globals.cache, count ); |
181 | device = arp_cache_get_index( & arp_globals.cache, count ); |
181 | if( device ){ |
182 | if( device ){ |
182 | clear_device( device ); |
183 | clear_device( device ); |
183 | if( device->addr_data ) free( device->addr_data ); |
184 | if( device->addr_data ) free( device->addr_data ); |
184 | if( device->broadcast_data ) free( device->broadcast_data ); |
185 | if( device->broadcast_data ) free( device->broadcast_data ); |
185 | } |
186 | } |
186 | } |
187 | } |
187 | arp_cache_clear( & arp_globals.cache ); |
188 | arp_cache_clear( & arp_globals.cache ); |
188 | rwlock_write_unlock( & arp_globals.lock ); |
189 | rwlock_write_unlock( & arp_globals.lock ); |
189 | printf( "Cache cleaned\n" ); |
190 | printf( "Cache cleaned\n" ); |
190 | return EOK; |
191 | return EOK; |
191 | } |
192 | } |
192 | 193 | ||
193 | int arp_device_req( int arp_phone, device_id_t device_id, services_t protocol, services_t netif, measured_string_ref address ){ |
194 | int arp_device_req( int arp_phone, device_id_t device_id, services_t protocol, services_t netif, measured_string_ref address ){ |
194 | ERROR_DECLARE; |
195 | ERROR_DECLARE; |
195 | 196 | ||
196 | measured_string_ref tmp; |
197 | measured_string_ref tmp; |
197 | 198 | ||
198 | tmp = measured_string_copy( address ); |
199 | tmp = measured_string_copy( address ); |
199 | if( ERROR_OCCURRED( arp_device_message( device_id, netif, protocol, tmp ))){ |
200 | if( ERROR_OCCURRED( arp_device_message( device_id, netif, protocol, tmp ))){ |
200 | free( tmp->value ); |
201 | free( tmp->value ); |
201 | free( tmp ); |
202 | free( tmp ); |
202 | } |
203 | } |
203 | return ERROR_CODE; |
204 | return ERROR_CODE; |
204 | } |
205 | } |
205 | 206 | ||
206 | int arp_translate_req( int arp_phone, device_id_t device_id, services_t protocol, measured_string_ref address, measured_string_ref * translation, char ** data ){ |
207 | int arp_translate_req( int arp_phone, device_id_t device_id, services_t protocol, measured_string_ref address, measured_string_ref * translation, char ** data ){ |
207 | measured_string_ref tmp; |
208 | measured_string_ref tmp; |
208 | 209 | ||
209 | rwlock_read_lock( & arp_globals.lock ); |
210 | rwlock_read_lock( & arp_globals.lock ); |
210 | tmp = arp_translate_message( device_id, protocol, address ); |
211 | tmp = arp_translate_message( device_id, protocol, address ); |
211 | if( tmp ){ |
212 | if( tmp ){ |
212 | * translation = measured_string_copy( tmp ); |
213 | * translation = measured_string_copy( tmp ); |
213 | rwlock_read_unlock( & arp_globals.lock ); |
214 | rwlock_read_unlock( & arp_globals.lock ); |
214 | if( * translation ){ |
215 | if( * translation ){ |
215 | * data = ( ** translation ).value; |
216 | * data = ( ** translation ).value; |
216 | return EOK; |
217 | return EOK; |
217 | }else{ |
218 | }else{ |
218 | return ENOMEM; |
219 | return ENOMEM; |
219 | } |
220 | } |
220 | }else{ |
221 | }else{ |
221 | rwlock_read_unlock( & arp_globals.lock ); |
222 | rwlock_read_unlock( & arp_globals.lock ); |
222 | return ENOENT; |
223 | return ENOENT; |
223 | } |
224 | } |
224 | } |
225 | } |
225 | 226 | ||
226 | int arp_initialize( void ){ |
227 | int arp_initialize( void ){ |
227 | ERROR_DECLARE; |
228 | ERROR_DECLARE; |
228 | 229 | ||
229 | rwlock_initialize( & arp_globals.lock ); |
230 | rwlock_initialize( & arp_globals.lock ); |
230 | rwlock_write_lock( & arp_globals.lock ); |
231 | rwlock_write_lock( & arp_globals.lock ); |
231 | ERROR_PROPAGATE( arp_cache_initialize( & arp_globals.cache )); |
232 | ERROR_PROPAGATE( arp_cache_initialize( & arp_globals.cache )); |
232 | rwlock_write_unlock( & arp_globals.lock ); |
233 | rwlock_write_unlock( & arp_globals.lock ); |
233 | return EOK; |
234 | return EOK; |
234 | } |
235 | } |
235 | 236 | ||
236 | int arp_proto_create( arp_proto_ref * proto, services_t service, measured_string_ref address ){ |
237 | int arp_proto_create( arp_proto_ref * proto, services_t service, measured_string_ref address ){ |
237 | ERROR_DECLARE; |
238 | ERROR_DECLARE; |
238 | 239 | ||
239 | * proto = ( arp_proto_ref ) malloc( sizeof( arp_proto_t )); |
240 | * proto = ( arp_proto_ref ) malloc( sizeof( arp_proto_t )); |
240 | if( !( * proto )) return ENOMEM; |
241 | if( !( * proto )) return ENOMEM; |
241 | ( ** proto ).service = service; |
242 | ( ** proto ).service = service; |
242 | ( ** proto ).addr = address; |
243 | ( ** proto ).addr = address; |
243 | ( ** proto ).addr_data = address->value; |
244 | ( ** proto ).addr_data = address->value; |
244 | if( ERROR_OCCURRED( arp_addr_initialize( &( ** proto).addresses ))){ |
245 | if( ERROR_OCCURRED( arp_addr_initialize( &( ** proto).addresses ))){ |
245 | free( * proto ); |
246 | free( * proto ); |
246 | return ERROR_CODE; |
247 | return ERROR_CODE; |
247 | } |
248 | } |
248 | return EOK; |
249 | return EOK; |
249 | } |
250 | } |
250 | 251 | ||
251 | int arp_device_message( device_id_t device_id, services_t service, services_t protocol, measured_string_ref address ){ |
252 | int arp_device_message( device_id_t device_id, services_t service, services_t protocol, measured_string_ref address ){ |
252 | ERROR_DECLARE; |
253 | ERROR_DECLARE; |
253 | 254 | ||
254 | arp_device_ref device; |
255 | arp_device_ref device; |
255 | arp_proto_ref proto; |
256 | arp_proto_ref proto; |
256 | int index; |
257 | int index; |
257 | 258 | ||
258 | rwlock_write_lock( & arp_globals.lock ); |
259 | rwlock_write_lock( & arp_globals.lock ); |
259 | // an existing device? |
260 | // an existing device? |
260 | device = arp_cache_find( & arp_globals.cache, device_id ); |
261 | device = arp_cache_find( & arp_globals.cache, device_id ); |
261 | if( device ){ |
262 | if( device ){ |
262 | if( device->service != service ){ |
263 | if( device->service != service ){ |
263 | printf( "Device %d already exists\n", device->device_id ); |
264 | printf( "Device %d already exists\n", device->device_id ); |
264 | rwlock_write_unlock( & arp_globals.lock ); |
265 | rwlock_write_unlock( & arp_globals.lock ); |
265 | return EEXIST; |
266 | return EEXIST; |
266 | } |
267 | } |
267 | proto = arp_protos_find( & device->protos, protocol ); |
268 | proto = arp_protos_find( & device->protos, protocol ); |
268 | if( proto ){ |
269 | if( proto ){ |
269 | free( proto->addr ); |
270 | free( proto->addr ); |
270 | free( proto->addr_data ); |
271 | free( proto->addr_data ); |
271 | proto->addr = address; |
272 | proto->addr = address; |
272 | proto->addr_data = address->value; |
273 | proto->addr_data = address->value; |
273 | }else{ |
274 | }else{ |
274 | if( ERROR_OCCURRED( arp_proto_create( & proto, protocol, address ))){ |
275 | if( ERROR_OCCURRED( arp_proto_create( & proto, protocol, address ))){ |
275 | rwlock_write_unlock( & arp_globals.lock ); |
276 | rwlock_write_unlock( & arp_globals.lock ); |
276 | return ERROR_CODE; |
277 | return ERROR_CODE; |
277 | } |
278 | } |
278 | index = arp_protos_add( & device->protos, proto->service, proto ); |
279 | index = arp_protos_add( & device->protos, proto->service, proto ); |
279 | if( index < 0 ){ |
280 | if( index < 0 ){ |
280 | rwlock_write_unlock( & arp_globals.lock ); |
281 | rwlock_write_unlock( & arp_globals.lock ); |
281 | free( proto ); |
282 | free( proto ); |
282 | return index; |
283 | return index; |
283 | } |
284 | } |
284 | } |
285 | } |
285 | printf( "Cache of the existing device %d cleaned\n", device->device_id ); |
286 | printf( "Cache of the existing device %d cleaned\n", device->device_id ); |
286 | }else{ |
287 | }else{ |
287 | index = hardware_map( service ); |
288 | index = hardware_map( service ); |
288 | if( ! index ) return ENOENT; |
289 | if( ! index ) return ENOENT; |
289 | // create a new device |
290 | // create a new device |
290 | device = ( arp_device_ref ) malloc( sizeof( arp_device_t )); |
291 | device = ( arp_device_ref ) malloc( sizeof( arp_device_t )); |
291 | if( ! device ){ |
292 | if( ! device ){ |
292 | rwlock_write_unlock( & arp_globals.lock ); |
293 | rwlock_write_unlock( & arp_globals.lock ); |
293 | return ENOMEM; |
294 | return ENOMEM; |
294 | } |
295 | } |
295 | device->hardware = index; |
296 | device->hardware = index; |
296 | device->device_id = device_id; |
297 | device->device_id = device_id; |
297 | if( ERROR_OCCURRED( arp_protos_initialize( & device->protos )) |
298 | if( ERROR_OCCURRED( arp_protos_initialize( & device->protos )) |
298 | || ERROR_OCCURRED( arp_proto_create( & proto, protocol, address ))){ |
299 | || ERROR_OCCURRED( arp_proto_create( & proto, protocol, address ))){ |
299 | rwlock_write_unlock( & arp_globals.lock ); |
300 | rwlock_write_unlock( & arp_globals.lock ); |
300 | free( device ); |
301 | free( device ); |
301 | return ERROR_CODE; |
302 | return ERROR_CODE; |
302 | } |
303 | } |
303 | index = arp_protos_add( & device->protos, proto->service, proto ); |
304 | index = arp_protos_add( & device->protos, proto->service, proto ); |
304 | if( index < 0 ){ |
305 | if( index < 0 ){ |
305 | rwlock_write_unlock( & arp_globals.lock ); |
306 | rwlock_write_unlock( & arp_globals.lock ); |
306 | arp_protos_destroy( & device->protos ); |
307 | arp_protos_destroy( & device->protos ); |
307 | free( device ); |
308 | free( device ); |
308 | return index; |
309 | return index; |
309 | } |
310 | } |
310 | device->service = service; |
311 | device->service = service; |
311 | // bind the new one |
312 | // bind the new one |
312 | device->phone = bind_service( device->service, device->device_id, SERVICE_ARP, 0, arp_receiver ); |
313 | device->phone = bind_service( device->service, device->device_id, SERVICE_ARP, 0, arp_receiver ); |
313 | if( device->phone < 0 ){ |
314 | if( device->phone < 0 ){ |
314 | rwlock_write_unlock( & arp_globals.lock ); |
315 | rwlock_write_unlock( & arp_globals.lock ); |
315 | arp_protos_destroy( & device->protos ); |
316 | arp_protos_destroy( & device->protos ); |
316 | free( device ); |
317 | free( device ); |
317 | return EREFUSED; |
318 | return EREFUSED; |
318 | } |
319 | } |
319 | // get packet dimensions |
320 | // get packet dimensions |
320 | if( ERROR_OCCURRED( nil_packet_size_req( device->phone, device_id, & device->addr_len, & device->prefix, & device->content, & device->suffix ))){ |
321 | if( ERROR_OCCURRED( nil_packet_size_req( device->phone, device_id, & device->addr_len, & device->prefix, & device->content, & device->suffix ))){ |
321 | rwlock_write_unlock( & arp_globals.lock ); |
322 | rwlock_write_unlock( & arp_globals.lock ); |
322 | arp_protos_destroy( & device->protos ); |
323 | arp_protos_destroy( & device->protos ); |
323 | free( device ); |
324 | free( device ); |
324 | return ERROR_CODE; |
325 | return ERROR_CODE; |
325 | } |
326 | } |
326 | // get hardware address |
327 | // get hardware address |
327 | if( ERROR_OCCURRED( nil_get_addr( device->phone, device_id, & device->addr, & device->addr_data ))){ |
328 | if( ERROR_OCCURRED( nil_get_addr( device->phone, device_id, & device->addr, & device->addr_data ))){ |
328 | rwlock_write_unlock( & arp_globals.lock ); |
329 | rwlock_write_unlock( & arp_globals.lock ); |
329 | arp_protos_destroy( & device->protos ); |
330 | arp_protos_destroy( & device->protos ); |
330 | free( device ); |
331 | free( device ); |
331 | return ERROR_CODE; |
332 | return ERROR_CODE; |
332 | } |
333 | } |
333 | // get broadcast address |
334 | // get broadcast address |
334 | if( ERROR_OCCURRED( nil_get_broadcast_addr( device->phone, device_id, & device->broadcast_addr, & device->broadcast_data ))){ |
335 | if( ERROR_OCCURRED( nil_get_broadcast_addr( device->phone, device_id, & device->broadcast_addr, & device->broadcast_data ))){ |
335 | rwlock_write_unlock( & arp_globals.lock ); |
336 | rwlock_write_unlock( & arp_globals.lock ); |
336 | free( device->addr ); |
337 | free( device->addr ); |
337 | free( device->addr_data ); |
338 | free( device->addr_data ); |
338 | arp_protos_destroy( & device->protos ); |
339 | arp_protos_destroy( & device->protos ); |
339 | free( device ); |
340 | free( device ); |
340 | return ERROR_CODE; |
341 | return ERROR_CODE; |
341 | } |
342 | } |
342 | if( ERROR_OCCURRED( arp_cache_add( & arp_globals.cache, device->device_id, device ))){ |
343 | if( ERROR_OCCURRED( arp_cache_add( & arp_globals.cache, device->device_id, device ))){ |
343 | rwlock_write_unlock( & arp_globals.lock ); |
344 | rwlock_write_unlock( & arp_globals.lock ); |
344 | free( device->addr ); |
345 | free( device->addr ); |
345 | free( device->addr_data ); |
346 | free( device->addr_data ); |
346 | free( device->broadcast_addr ); |
347 | free( device->broadcast_addr ); |
347 | free( device->broadcast_data ); |
348 | free( device->broadcast_data ); |
348 | arp_protos_destroy( & device->protos ); |
349 | arp_protos_destroy( & device->protos ); |
349 | free( device ); |
350 | free( device ); |
350 | return ERROR_CODE; |
351 | return ERROR_CODE; |
351 | } |
352 | } |
352 | printf( "New device registered:\n\tid\t= %d\n\ttype\t= 0x%x\n\tservice\t= %d\n", device->device_id, device->hardware, device->service ); |
353 | printf( "New device registered:\n\tid\t= %d\n\ttype\t= 0x%x\n\tservice\t= %d\n", device->device_id, device->hardware, device->service ); |
353 | } |
354 | } |
354 | rwlock_write_unlock( & arp_globals.lock ); |
355 | rwlock_write_unlock( & arp_globals.lock ); |
355 | return EOK; |
356 | return EOK; |
356 | } |
357 | } |
357 | 358 | ||
358 | measured_string_ref arp_translate_message( device_id_t device_id, services_t protocol, measured_string_ref target ){ |
359 | measured_string_ref arp_translate_message( device_id_t device_id, services_t protocol, measured_string_ref target ){ |
359 | arp_device_ref device; |
360 | arp_device_ref device; |
360 | arp_proto_ref proto; |
361 | arp_proto_ref proto; |
361 | measured_string_ref addr; |
362 | measured_string_ref addr; |
362 | size_t length; |
363 | size_t length; |
363 | packet_t packet; |
364 | packet_t packet; |
364 | arp_header_ref header; |
365 | arp_header_ref header; |
365 | 366 | ||
366 | if( ! target ) return NULL; |
367 | if( ! target ) return NULL; |
367 | device = arp_cache_find( & arp_globals.cache, device_id ); |
368 | device = arp_cache_find( & arp_globals.cache, device_id ); |
368 | if( ! device ) return NULL; |
369 | if( ! device ) return NULL; |
369 | proto = arp_protos_find( & device->protos, protocol ); |
370 | proto = arp_protos_find( & device->protos, protocol ); |
370 | if(( ! proto ) || ( proto->addr->length != target->length )) return NULL; |
371 | if(( ! proto ) || ( proto->addr->length != target->length )) return NULL; |
371 | addr = arp_addr_find( & proto->addresses, target->value, target->length ); |
372 | addr = arp_addr_find( & proto->addresses, target->value, target->length ); |
372 | if( addr ) return addr; |
373 | if( addr ) return addr; |
373 | // ARP packet content size = header + ( address + translation ) * 2 |
374 | // ARP packet content size = header + ( address + translation ) * 2 |
374 | length = 8 + ( CONVERT_SIZE( char, uint8_t, proto->addr->length ) + CONVERT_SIZE( char, uint8_t, device->addr->length )) * 2; |
375 | length = 8 + ( CONVERT_SIZE( char, uint8_t, proto->addr->length ) + CONVERT_SIZE( char, uint8_t, device->addr->length )) * 2; |
375 | if( length > device->content ) return NULL; |
376 | if( length > device->content ) return NULL; |
376 | packet = packet_get_4( arp_globals.net_phone, device->addr_len, device->prefix, length, device->suffix ); |
377 | packet = packet_get_4( arp_globals.net_phone, device->addr_len, device->prefix, length, device->suffix ); |
377 | if( ! packet ) return NULL; |
378 | if( ! packet ) return NULL; |
378 | header = ( arp_header_ref ) packet_suffix( packet, length ); |
379 | header = ( arp_header_ref ) packet_suffix( packet, length ); |
379 | header->hardware = htons( device->hardware ); |
380 | header->hardware = htons( device->hardware ); |
380 | header->hardware_length = device->addr->length; |
381 | header->hardware_length = device->addr->length; |
381 | header->protocol = htons( protocol_map( device->service, protocol )); |
382 | header->protocol = htons( protocol_map( device->service, protocol )); |
382 | header->protocol_length = proto->addr->length; |
383 | header->protocol_length = proto->addr->length; |
383 | header->operation = htons( ARPOP_REQUEST ); |
384 | header->operation = htons( ARPOP_REQUEST ); |
384 | length = sizeof( arp_header_t ); |
385 | length = sizeof( arp_header_t ); |
385 | memcpy((( uint8_t * ) header ) + length, device->addr->value, device->addr->length ); |
386 | memcpy((( uint8_t * ) header ) + length, device->addr->value, device->addr->length ); |
386 | length += device->addr->length; |
387 | length += device->addr->length; |
387 | memcpy((( uint8_t * ) header ) + length, proto->addr->value, proto->addr->length ); |
388 | memcpy((( uint8_t * ) header ) + length, proto->addr->value, proto->addr->length ); |
388 | length += proto->addr->length; |
389 | length += proto->addr->length; |
389 | bzero((( uint8_t * ) header ) + length, device->addr->length ); |
390 | bzero((( uint8_t * ) header ) + length, device->addr->length ); |
390 | length += device->addr->length; |
391 | length += device->addr->length; |
391 | memcpy((( uint8_t * ) header ) + length, target->value, target->length ); |
392 | memcpy((( uint8_t * ) header ) + length, target->value, target->length ); |
392 | packet_set_addr( packet, ( uint8_t * ) device->addr->value, ( uint8_t * ) device->broadcast_addr->value, CONVERT_SIZE( char, uint8_t, device->addr->length )); |
393 | packet_set_addr( packet, ( uint8_t * ) device->addr->value, ( uint8_t * ) device->broadcast_addr->value, CONVERT_SIZE( char, uint8_t, device->addr->length )); |
393 | nil_send_msg( device->phone, device_id, packet, SERVICE_ARP ); |
394 | nil_send_msg( device->phone, device_id, packet, SERVICE_ARP ); |
394 | return NULL; |
395 | return NULL; |
395 | } |
396 | } |
396 | 397 | ||
397 | int arp_receive_message( device_id_t device_id, packet_t packet ){ |
398 | int arp_receive_message( device_id_t device_id, packet_t packet ){ |
398 | ERROR_DECLARE; |
399 | ERROR_DECLARE; |
399 | 400 | ||
400 | size_t length; |
401 | size_t length; |
401 | arp_header_ref header; |
402 | arp_header_ref header; |
402 | arp_device_ref device; |
403 | arp_device_ref device; |
403 | arp_proto_ref proto; |
404 | arp_proto_ref proto; |
404 | measured_string_ref hw_source; |
405 | measured_string_ref hw_source; |
405 | uint8_t * src_hw; |
406 | uint8_t * src_hw; |
406 | uint8_t * src_proto; |
407 | uint8_t * src_proto; |
407 | uint8_t * des_hw; |
408 | uint8_t * des_hw; |
408 | uint8_t * des_proto; |
409 | uint8_t * des_proto; |
409 | 410 | ||
410 | length = packet_get_data_length( packet ); |
411 | length = packet_get_data_length( packet ); |
411 | if( length <= sizeof( arp_header_t )) return EINVAL; |
412 | if( length <= sizeof( arp_header_t )) return EINVAL; |
412 | device = arp_cache_find( & arp_globals.cache, device_id ); |
413 | device = arp_cache_find( & arp_globals.cache, device_id ); |
413 | if( ! device ) return ENOENT; |
414 | if( ! device ) return ENOENT; |
414 | header = ( arp_header_ref ) packet_get_data( packet ); |
415 | header = ( arp_header_ref ) packet_get_data( packet ); |
415 | if(( ntohs( header->hardware ) != device->hardware ) |
416 | if(( ntohs( header->hardware ) != device->hardware ) |
416 | || ( length < sizeof( arp_header_t ) + ( header->hardware_length + header->protocol_length ) * 2 )){ |
417 | || ( length < sizeof( arp_header_t ) + ( header->hardware_length + header->protocol_length ) * 2 )){ |
417 | return EINVAL; |
418 | return EINVAL; |
418 | } |
419 | } |
419 | proto = arp_protos_find( & device->protos, protocol_unmap( device->service, ntohs( header->protocol ))); |
420 | proto = arp_protos_find( & device->protos, protocol_unmap( device->service, ntohs( header->protocol ))); |
420 | if( ! proto ) return ENOENT; |
421 | if( ! proto ) return ENOENT; |
421 | src_hw = (( uint8_t * ) header ) + sizeof( arp_header_t ); |
422 | src_hw = (( uint8_t * ) header ) + sizeof( arp_header_t ); |
422 | src_proto = src_hw + header->hardware_length; |
423 | src_proto = src_hw + header->hardware_length; |
423 | des_hw = src_proto + header->protocol_length; |
424 | des_hw = src_proto + header->protocol_length; |
424 | des_proto = des_hw + header->hardware_length; |
425 | des_proto = des_hw + header->hardware_length; |
425 | hw_source = arp_addr_find( & proto->addresses, ( char * ) src_proto, CONVERT_SIZE( uint8_t, char, header->protocol_length )); |
426 | hw_source = arp_addr_find( & proto->addresses, ( char * ) src_proto, CONVERT_SIZE( uint8_t, char, header->protocol_length )); |
426 | // exists? |
427 | // exists? |
427 | if( hw_source ){ |
428 | if( hw_source ){ |
428 | if( hw_source->length != CONVERT_SIZE( uint8_t, char, header->hardware_length )){ |
429 | if( hw_source->length != CONVERT_SIZE( uint8_t, char, header->hardware_length )){ |
429 | return EINVAL; |
430 | return EINVAL; |
430 | } |
431 | } |
431 | memcpy( hw_source->value, src_hw, hw_source->length ); |
432 | memcpy( hw_source->value, src_hw, hw_source->length ); |
432 | } |
433 | } |
433 | // is my protocol address? |
434 | // is my protocol address? |
434 | if( proto->addr->length != CONVERT_SIZE( uint8_t, char, header->hardware_length )){ |
435 | if( proto->addr->length != CONVERT_SIZE( uint8_t, char, header->hardware_length )){ |
435 | return EINVAL; |
436 | return EINVAL; |
436 | } |
437 | } |
437 | if( ! strncmp( proto->addr->value, ( char * ) des_proto, proto->addr->length )){ |
438 | if( ! str_lcmp( proto->addr->value, ( char * ) des_proto, proto->addr->length )){ |
438 | // not already upadted? |
439 | // not already upadted? |
439 | if( ! hw_source ){ |
440 | if( ! hw_source ){ |
440 | hw_source = measured_string_create_bulk(( char * ) src_hw, CONVERT_SIZE( uint8_t, char, header->hardware_length )); |
441 | hw_source = measured_string_create_bulk(( char * ) src_hw, CONVERT_SIZE( uint8_t, char, header->hardware_length )); |
441 | if( ! hw_source ) return ENOMEM; |
442 | if( ! hw_source ) return ENOMEM; |
442 | ERROR_PROPAGATE( arp_addr_add( & proto->addresses, ( char * ) src_proto, CONVERT_SIZE( uint8_t, char, header->protocol_length ), hw_source )); |
443 | ERROR_PROPAGATE( arp_addr_add( & proto->addresses, ( char * ) src_proto, CONVERT_SIZE( uint8_t, char, header->protocol_length ), hw_source )); |
443 | } |
444 | } |
444 | if( ntohs( header->operation ) == ARPOP_REQUEST ){ |
445 | if( ntohs( header->operation ) == ARPOP_REQUEST ){ |
445 | header->operation = htons( ARPOP_REPLY ); |
446 | header->operation = htons( ARPOP_REPLY ); |
446 | memcpy( des_proto, src_proto, header->protocol_length ); |
447 | memcpy( des_proto, src_proto, header->protocol_length ); |
447 | memcpy( src_proto, proto->addr->value, header->protocol_length ); |
448 | memcpy( src_proto, proto->addr->value, header->protocol_length ); |
448 | memcpy( src_hw, des_hw, header->hardware_length ); |
449 | memcpy( src_hw, des_hw, header->hardware_length ); |
449 | memcpy( des_hw, hw_source->value, header->hardware_length ); |
450 | memcpy( des_hw, hw_source->value, header->hardware_length ); |
450 | packet_set_addr( packet, src_hw, des_hw, header->hardware_length ); |
451 | packet_set_addr( packet, src_hw, des_hw, header->hardware_length ); |
451 | nil_send_msg( device->phone, device_id, packet, SERVICE_ARP ); |
452 | nil_send_msg( device->phone, device_id, packet, SERVICE_ARP ); |
452 | }else{ |
453 | }else{ |
453 | pq_release( arp_globals.net_phone, packet_get_id( packet )); |
454 | pq_release( arp_globals.net_phone, packet_get_id( packet )); |
454 | } |
455 | } |
455 | } |
456 | } |
456 | return EOK; |
457 | return EOK; |
457 | } |
458 | } |
458 | 459 | ||
459 | void clear_device( arp_device_ref device ){ |
460 | void clear_device( arp_device_ref device ){ |
460 | int count; |
461 | int count; |
461 | arp_proto_ref proto; |
462 | arp_proto_ref proto; |
462 | 463 | ||
463 | for( count = arp_protos_count( & device->protos ) - 1; count >= 0; -- count ){ |
464 | for( count = arp_protos_count( & device->protos ) - 1; count >= 0; -- count ){ |
464 | proto = arp_protos_get_index( & device->protos, count ); |
465 | proto = arp_protos_get_index( & device->protos, count ); |
465 | if( proto ){ |
466 | if( proto ){ |
466 | if( proto->addr ) free( proto->addr ); |
467 | if( proto->addr ) free( proto->addr ); |
467 | if( proto->addr_data ) free( proto->addr_data ); |
468 | if( proto->addr_data ) free( proto->addr_data ); |
468 | arp_addr_destroy( & proto->addresses ); |
469 | arp_addr_destroy( & proto->addresses ); |
469 | } |
470 | } |
470 | } |
471 | } |
471 | arp_protos_clear( & device->protos ); |
472 | arp_protos_clear( & device->protos ); |
472 | } |
473 | } |
473 | 474 | ||
474 | int arp_connect_module( services_t service ){ |
475 | int arp_connect_module( services_t service ){ |
475 | return EOK; |
476 | return EOK; |
476 | } |
477 | } |
477 | 478 | ||
478 | int arp_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
479 | int arp_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
479 | ERROR_DECLARE; |
480 | ERROR_DECLARE; |
480 | 481 | ||
481 | measured_string_ref address; |
482 | measured_string_ref address; |
482 | measured_string_ref translation; |
483 | measured_string_ref translation; |
483 | char * data; |
484 | char * data; |
484 | 485 | ||
485 | // printf( "message %d - %d\n", IPC_GET_METHOD( * call ), NET_ARP_FIRST ); |
486 | // printf( "message %d - %d\n", IPC_GET_METHOD( * call ), NET_ARP_FIRST ); |
486 | * answer_count = 0; |
487 | * answer_count = 0; |
487 | switch( IPC_GET_METHOD( * call )){ |
488 | switch( IPC_GET_METHOD( * call )){ |
488 | case IPC_M_PHONE_HUNGUP: |
489 | case IPC_M_PHONE_HUNGUP: |
489 | return EOK; |
490 | return EOK; |
490 | case NET_ARP_DEVICE: |
491 | case NET_ARP_DEVICE: |
491 | ERROR_PROPAGATE( measured_strings_receive( & address, & data, 1 )); |
492 | ERROR_PROPAGATE( measured_strings_receive( & address, & data, 1 )); |
492 | if( ERROR_OCCURRED( arp_device_message( IPC_GET_DEVICE( call ), IPC_GET_SERVICE( call ), ARP_GET_NETIF( call ), address ))){ |
493 | if( ERROR_OCCURRED( arp_device_message( IPC_GET_DEVICE( call ), IPC_GET_SERVICE( call ), ARP_GET_NETIF( call ), address ))){ |
493 | free( address ); |
494 | free( address ); |
494 | free( data ); |
495 | free( data ); |
495 | } |
496 | } |
496 | return ERROR_CODE; |
497 | return ERROR_CODE; |
497 | case NET_ARP_TRANSLATE: |
498 | case NET_ARP_TRANSLATE: |
498 | ERROR_PROPAGATE( measured_strings_receive( & address, & data, 1 )); |
499 | ERROR_PROPAGATE( measured_strings_receive( & address, & data, 1 )); |
499 | rwlock_read_lock( & arp_globals.lock ); |
500 | rwlock_read_lock( & arp_globals.lock ); |
500 | translation = arp_translate_message( IPC_GET_DEVICE( call ), IPC_GET_SERVICE( call ), address ); |
501 | translation = arp_translate_message( IPC_GET_DEVICE( call ), IPC_GET_SERVICE( call ), address ); |
501 | free( address ); |
502 | free( address ); |
502 | free( data ); |
503 | free( data ); |
503 | if( ! translation ){ |
504 | if( ! translation ){ |
504 | rwlock_read_unlock( & arp_globals.lock ); |
505 | rwlock_read_unlock( & arp_globals.lock ); |
505 | return ENOENT; |
506 | return ENOENT; |
506 | } |
507 | } |
507 | ERROR_CODE = measured_strings_reply( translation, 1 ); |
508 | ERROR_CODE = measured_strings_reply( translation, 1 ); |
508 | rwlock_read_unlock( & arp_globals.lock ); |
509 | rwlock_read_unlock( & arp_globals.lock ); |
509 | return ERROR_CODE; |
510 | return ERROR_CODE; |
510 | case NET_ARP_CLEAR_DEVICE: |
511 | case NET_ARP_CLEAR_DEVICE: |
511 | return arp_clear_device_req( 0, IPC_GET_DEVICE( call )); |
512 | return arp_clear_device_req( 0, IPC_GET_DEVICE( call )); |
512 | case NET_ARP_CLEAN_CACHE: |
513 | case NET_ARP_CLEAN_CACHE: |
513 | return arp_clean_cache_req( 0 ); |
514 | return arp_clean_cache_req( 0 ); |
514 | } |
515 | } |
515 | return ENOTSUP; |
516 | return ENOTSUP; |
516 | } |
517 | } |
517 | 518 | ||
518 | void arp_receiver( ipc_callid_t iid, ipc_call_t * icall ){ |
519 | void arp_receiver( ipc_callid_t iid, ipc_call_t * icall ){ |
519 | ERROR_DECLARE; |
520 | ERROR_DECLARE; |
520 | 521 | ||
521 | packet_t packet; |
522 | packet_t packet; |
522 | 523 | ||
523 | while( true ){ |
524 | while( true ){ |
524 | switch( IPC_GET_METHOD( * icall )){ |
525 | switch( IPC_GET_METHOD( * icall )){ |
525 | case NET_IL_DEVICE_STATE: |
526 | case NET_IL_DEVICE_STATE: |
526 | // do nothing - keep the cache |
527 | // do nothing - keep the cache |
527 | ipc_answer_0( iid, EOK ); |
528 | ipc_answer_0( iid, EOK ); |
528 | break; |
529 | break; |
529 | case NET_IL_RECEIVED: |
530 | case NET_IL_RECEIVED: |
530 | if( ! ERROR_OCCURRED( packet_translate( arp_globals.net_phone, & packet, IPC_GET_PACKET( icall )))){ |
531 | if( ! ERROR_OCCURRED( packet_translate( arp_globals.net_phone, & packet, IPC_GET_PACKET( icall )))){ |
531 | rwlock_read_lock( & arp_globals.lock ); |
532 | rwlock_read_lock( & arp_globals.lock ); |
532 | ERROR_CODE = arp_receive_message( IPC_GET_DEVICE( icall ), packet ); |
533 | ERROR_CODE = arp_receive_message( IPC_GET_DEVICE( icall ), packet ); |
533 | rwlock_read_unlock( & arp_globals.lock ); |
534 | rwlock_read_unlock( & arp_globals.lock ); |
534 | } |
535 | } |
535 | ipc_answer_0( iid, ERROR_CODE ); |
536 | ipc_answer_0( iid, ERROR_CODE ); |
536 | break; |
537 | break; |
537 | default: |
538 | default: |
538 | ipc_answer_0( iid, ENOTSUP ); |
539 | ipc_answer_0( iid, ENOTSUP ); |
539 | } |
540 | } |
540 | iid = async_get_call( icall ); |
541 | iid = async_get_call( icall ); |
541 | } |
542 | } |
542 | } |
543 | } |
543 | 544 | ||
544 | /** @} |
545 | /** @} |
545 | */ |
546 | */ |
546 | 547 |