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