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1 | /* |
1 | /* |
2 | * Copyright (c) 2008 Lukas Mejdrech |
2 | * Copyright (c) 2008 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 | */ |
34 | */ |
35 | 35 | ||
36 | #include <as.h> |
36 | #include <as.h> |
37 | #include <async.h> |
37 | #include <async.h> |
38 | #include <malloc.h> |
38 | #include <malloc.h> |
39 | #include <stdio.h> |
39 | #include <stdio.h> |
40 | #include <string.h> |
40 | #include <string.h> |
41 | 41 | ||
42 | #include <ipc/ipc.h> |
42 | #include <ipc/ipc.h> |
43 | #include <ipc/services.h> |
43 | #include <ipc/services.h> |
44 | 44 | ||
45 | #include "../../err.h" |
45 | #include "../../err.h" |
46 | #include "../../messages.h" |
46 | #include "../../messages.h" |
47 | #include "../../modules.h" |
47 | #include "../../modules.h" |
48 | 48 | ||
49 | #include "../../include/protocol_map.h" |
49 | #include "../../include/protocol_map.h" |
50 | #include "../../netif/device.h" |
50 | #include "../../netif/device.h" |
51 | 51 | ||
52 | #include "../../structures/measured_strings.h" |
52 | #include "../../structures/measured_strings.h" |
53 | #include "../../structures/packet/packet.h" |
53 | #include "../../structures/packet/packet.h" |
- | 54 | #include "../../structures/packet/packet_client.h" |
|
54 | 55 | ||
55 | #include "arp.h" |
56 | #include "arp.h" |
56 | #include "arp_header.h" |
57 | #include "arp_header.h" |
57 | #include "arp_oc.h" |
58 | #include "arp_oc.h" |
58 | //#include "arp_messages.h" |
59 | //#include "arp_messages.h" |
59 | #include "arp_module.h" |
60 | #include "arp_module.h" |
60 | 61 | ||
61 | #define IPC_GET_DEVICE( call ) ( device_id_t ) IPC_GET_ARG1( * call ) |
62 | #define IPC_GET_DEVICE( call ) ( device_id_t ) IPC_GET_ARG1( * call ) |
- | 63 | #define IPC_GET_PACKET( call ) ( packet_id_t ) IPC_GET_ARG2( * call ) |
|
62 | #define IPC_GET_PROTO( call ) ( services_t ) IPC_GET_ARG2( * call ) |
64 | #define IPC_GET_PROTO( call ) ( services_t ) IPC_GET_ARG2( * call ) |
63 | #define IPC_GET_SERVICE( call ) ( services_t ) IPC_GET_ARG3( * call ) |
65 | #define IPC_GET_SERVICE( call ) ( services_t ) IPC_GET_ARG3( * call ) |
64 | 66 | ||
65 | arp_globals_t arp_globals; |
67 | arp_globals_t arp_globals; |
66 | 68 | ||
67 | DEVICE_MAP_IMPLEMENT( arp_cache, arp_device_t ) |
69 | DEVICE_MAP_IMPLEMENT( arp_cache, arp_device_t ) |
68 | 70 | ||
69 | INT_MAP_IMPLEMENT( arp_protos, arp_proto_t ) |
71 | INT_MAP_IMPLEMENT( arp_protos, arp_proto_t ) |
70 | 72 | ||
71 | GENERIC_CHAR_MAP_IMPLEMENT( arp_addr, measured_string_t ) |
73 | GENERIC_CHAR_MAP_IMPLEMENT( arp_addr, measured_string_t ) |
72 | 74 | ||
73 | int arp_proto_create( arp_proto_ref * proto, services_t service, measured_string_ref address ); |
75 | int arp_proto_create( arp_proto_ref * proto, services_t service, measured_string_ref address ); |
74 | int arp_device_message( device_id_t device_id, services_t service, services_t protocol, measured_string_ref address ); |
76 | int arp_device_message( device_id_t device_id, services_t service, services_t protocol, measured_string_ref address ); |
75 | measured_string_ref arp_translate_message( device_id_t device, services_t protocol, measured_string_ref target ); |
77 | measured_string_ref arp_translate_message( device_id_t device, services_t protocol, measured_string_ref target ); |
76 | int arp_receive_message( device_id_t device_id, packet_t packet ); |
78 | int arp_receive_message( device_id_t device_id, packet_t packet ); |
77 | int arp_clear_device_message( device_id_t device_id ); |
79 | int arp_clear_device_message( device_id_t device_id ); |
78 | void clear_device( arp_device_ref device ); |
80 | void clear_device( arp_device_ref device ); |
79 | int arp_clean_cache_message( void ); |
81 | int arp_clean_cache_message( void ); |
80 | void arp_receiver( ipc_callid_t iid, ipc_call_t * icall ); |
82 | void arp_receiver( ipc_callid_t iid, ipc_call_t * icall ); |
81 | 83 | ||
82 | /** Initializes the ARP module. |
84 | /** Initializes the ARP module. |
83 | */ |
85 | */ |
84 | int arp_initialize( void ){ |
86 | int arp_initialize( void ){ |
85 | arp_cache_initialize( & arp_globals.cache ); |
87 | arp_cache_initialize( & arp_globals.cache ); |
86 | return EOK; |
88 | return EOK; |
87 | } |
89 | } |
88 | 90 | ||
89 | int arp_proto_create( arp_proto_ref * proto, services_t service, measured_string_ref address ){ |
91 | int arp_proto_create( arp_proto_ref * proto, services_t service, measured_string_ref address ){ |
90 | ERROR_DECLARE; |
92 | ERROR_DECLARE; |
91 | 93 | ||
92 | * proto = ( arp_proto_ref ) malloc( sizeof( arp_proto_t )); |
94 | * proto = ( arp_proto_ref ) malloc( sizeof( arp_proto_t )); |
93 | if( !( * proto )) return ENOMEM; |
95 | if( !( * proto )) return ENOMEM; |
94 | ( ** proto ).service = service; |
96 | ( ** proto ).service = service; |
95 | ( ** proto ).addr = address; |
97 | ( ** proto ).addr = address; |
96 | ( ** proto ).addr_data = address->value; |
98 | ( ** proto ).addr_data = address->value; |
97 | if( ERROR_OCCURED( arp_addr_initialize( &( ** proto).addresses ))){ |
99 | if( ERROR_OCCURED( arp_addr_initialize( &( ** proto).addresses ))){ |
98 | free( * proto ); |
100 | free( * proto ); |
99 | return ERROR_CODE; |
101 | return ERROR_CODE; |
100 | } |
102 | } |
101 | return EOK; |
103 | return EOK; |
102 | } |
104 | } |
103 | 105 | ||
104 | int arp_device_message( device_id_t device_id, services_t service, services_t protocol, measured_string_ref address ){ |
106 | int arp_device_message( device_id_t device_id, services_t service, services_t protocol, measured_string_ref address ){ |
105 | ERROR_DECLARE; |
107 | ERROR_DECLARE; |
106 | 108 | ||
107 | arp_device_ref device; |
109 | arp_device_ref device; |
108 | aid_t message; |
110 | aid_t message; |
109 | ipc_call_t answer; |
111 | ipc_call_t answer; |
110 | ipcarg_t result; |
112 | ipcarg_t result; |
111 | arp_proto_ref proto; |
113 | arp_proto_ref proto; |
112 | 114 | ||
113 | // an existing device? |
115 | // an existing device? |
114 | device = arp_cache_find( & arp_globals.cache, device_id ); |
116 | device = arp_cache_find( & arp_globals.cache, device_id ); |
115 | if( device ){ |
117 | if( device ){ |
116 | if( device->service != service ) return EEXIST; |
118 | if( device->service != service ) return EEXIST; |
117 | proto = arp_protos_find( & device->protos, protocol ); |
119 | proto = arp_protos_find( & device->protos, protocol ); |
118 | if( proto ){ |
120 | if( proto ){ |
119 | free( proto->addr ); |
121 | free( proto->addr ); |
120 | free( proto->addr_data ); |
122 | free( proto->addr_data ); |
121 | proto->addr = address; |
123 | proto->addr = address; |
122 | proto->addr_data = address->value; |
124 | proto->addr_data = address->value; |
123 | }else{ |
125 | }else{ |
124 | ERROR_PROPAGATE( arp_proto_create( & proto, protocol, address )); |
126 | ERROR_PROPAGATE( arp_proto_create( & proto, protocol, address )); |
125 | if( ERROR_OCCURED( arp_protos_add( & device->protos, proto->service, proto ))){ |
127 | if( ERROR_OCCURED( arp_protos_add( & device->protos, proto->service, proto ))){ |
126 | free( proto ); |
128 | free( proto ); |
127 | return ERROR_CODE; |
129 | return ERROR_CODE; |
128 | } |
130 | } |
129 | } |
131 | } |
130 | return EOK; |
132 | return EOK; |
131 | }else{ |
133 | }else{ |
132 | // create a new device |
134 | // create a new device |
133 | device = ( arp_device_ref ) malloc( sizeof( arp_device_t )); |
135 | device = ( arp_device_ref ) malloc( sizeof( arp_device_t )); |
134 | if( ! device ) return ENOMEM; |
136 | if( ! device ) return ENOMEM; |
135 | device->device_id = device_id; |
137 | device->device_id = device_id; |
136 | if( ERROR_OCCURED( arp_protos_initialize( & device->protos )) |
138 | if( ERROR_OCCURED( arp_protos_initialize( & device->protos )) |
137 | || ERROR_OCCURED( arp_proto_create( & proto, protocol, address ))){ |
139 | || ERROR_OCCURED( arp_proto_create( & proto, protocol, address ))){ |
138 | free( device ); |
140 | free( device ); |
139 | return ERROR_CODE; |
141 | return ERROR_CODE; |
140 | } |
142 | } |
141 | if( ERROR_OCCURED( arp_protos_add( & device->protos, proto->service, proto ))){ |
143 | if( ERROR_OCCURED( arp_protos_add( & device->protos, proto->service, proto ))){ |
142 | arp_protos_destroy( & device->protos ); |
144 | arp_protos_destroy( & device->protos ); |
143 | free( device ); |
145 | free( device ); |
144 | return ERROR_CODE; |
146 | return ERROR_CODE; |
145 | } |
147 | } |
146 | device->service = service; |
148 | device->service = service; |
147 | // bind the new one |
149 | // bind the new one |
148 | device->phone = bind_service( device->service, device->device_id, SERVICE_ARP, 0, arp_receiver ); |
150 | device->phone = bind_service( device->service, device->device_id, SERVICE_ARP, 0, arp_receiver ); |
149 | // get packet dimensions |
151 | // get packet dimensions |
150 | if( ERROR_OCCURED( async_req_1_3( device->phone, NET_NIL_PACKET_SPACE, device_id, & device->prefix, & device->content, & device->sufix ))){ |
152 | if( ERROR_OCCURED( async_req_1_4( device->phone, NET_NIL_PACKET_SPACE, device_id, & device->addr_len, & device->prefix, & device->content, & device->sufix ))){ |
151 | arp_protos_destroy( & device->protos ); |
153 | arp_protos_destroy( & device->protos ); |
152 | free( device ); |
154 | free( device ); |
153 | return ERROR_CODE; |
155 | return ERROR_CODE; |
154 | } |
156 | } |
155 | // get hardware address |
157 | // get hardware address |
156 | message = async_send_1( device->phone, NET_NIL_ADDR, device->device_id, & answer ); |
158 | message = async_send_1( device->phone, NET_NIL_ADDR, device->device_id, & answer ); |
157 | if( ERROR_OCCURED( measured_strings_return( device->phone, & device->addr, & device->addr_data, 1 ))){ |
159 | if( ERROR_OCCURED( measured_strings_return( device->phone, & device->addr, & device->addr_data, 1 ))){ |
158 | arp_protos_destroy( & device->protos ); |
160 | arp_protos_destroy( & device->protos ); |
159 | free( device ); |
161 | free( device ); |
160 | async_wait_for( message, NULL ); |
162 | async_wait_for( message, NULL ); |
161 | return ERROR_CODE; |
163 | return ERROR_CODE; |
162 | } |
164 | } |
163 | async_wait_for( message, & result ); |
165 | async_wait_for( message, & result ); |
164 | if( ERROR_OCCURED( result )){ |
166 | if( ERROR_OCCURED( result )){ |
165 | free( device->addr ); |
167 | free( device->addr ); |
166 | free( device->addr_data ); |
168 | free( device->addr_data ); |
167 | arp_protos_destroy( & device->protos ); |
169 | arp_protos_destroy( & device->protos ); |
168 | free( device ); |
170 | free( device ); |
169 | return ERROR_CODE; |
171 | return ERROR_CODE; |
170 | } |
172 | } |
171 | // get broadcast address |
173 | // get broadcast address |
172 | message = async_send_1( device->phone, NET_NIL_BROADCAST_ADDR, device->device_id, & answer ); |
174 | message = async_send_1( device->phone, NET_NIL_BROADCAST_ADDR, device->device_id, & answer ); |
173 | if( ERROR_OCCURED( measured_strings_return( device->phone, & device->broadcast_addr, & device->broadcast_data, 1 ))){ |
175 | if( ERROR_OCCURED( measured_strings_return( device->phone, & device->broadcast_addr, & device->broadcast_data, 1 ))){ |
174 | free( device->addr ); |
176 | free( device->addr ); |
175 | free( device->addr_data ); |
177 | free( device->addr_data ); |
176 | arp_protos_destroy( & device->protos ); |
178 | arp_protos_destroy( & device->protos ); |
177 | free( device ); |
179 | free( device ); |
178 | async_wait_for( message, NULL ); |
180 | async_wait_for( message, NULL ); |
179 | return ERROR_CODE; |
181 | return ERROR_CODE; |
180 | } |
182 | } |
181 | async_wait_for( message, & result ); |
183 | async_wait_for( message, & result ); |
182 | // add to the cache |
184 | // add to the cache |
183 | if( ERROR_OCCURED( result ) |
185 | if( ERROR_OCCURED( result ) |
184 | || ERROR_OCCURED( arp_cache_add( & arp_globals.cache, device->device_id, device ))){ |
186 | || ERROR_OCCURED( arp_cache_add( & arp_globals.cache, device->device_id, device ))){ |
185 | free( device->addr ); |
187 | free( device->addr ); |
186 | free( device->addr_data ); |
188 | free( device->addr_data ); |
187 | free( device->broadcast_addr ); |
189 | free( device->broadcast_addr ); |
188 | free( device->broadcast_data ); |
190 | free( device->broadcast_data ); |
189 | arp_protos_destroy( & device->protos ); |
191 | arp_protos_destroy( & device->protos ); |
190 | free( device ); |
192 | free( device ); |
191 | return ERROR_CODE; |
193 | return ERROR_CODE; |
192 | } |
194 | } |
193 | } |
195 | } |
194 | return EOK; |
196 | return EOK; |
195 | } |
197 | } |
196 | 198 | ||
197 | measured_string_ref arp_translate_message( device_id_t device_id, services_t protocol, measured_string_ref target ){ |
199 | measured_string_ref arp_translate_message( device_id_t device_id, services_t protocol, measured_string_ref target ){ |
198 | // ERROR_DECLARE; |
200 | // ERROR_DECLARE; |
199 | 201 | ||
200 | arp_device_ref device; |
202 | arp_device_ref device; |
201 | arp_proto_ref proto; |
203 | arp_proto_ref proto; |
202 | measured_string_ref addr; |
204 | measured_string_ref addr; |
203 | size_t length; |
205 | size_t length; |
204 | packet_t packet; |
206 | packet_t packet; |
205 | arp_header_ref header; |
207 | arp_header_ref header; |
206 | 208 | ||
207 | if( ! target ) return NULL; |
209 | if( ! target ) return NULL; |
208 | device = arp_cache_find( & arp_globals.cache, device_id ); |
210 | device = arp_cache_find( & arp_globals.cache, device_id ); |
209 | if( ! device ) return NULL; |
211 | if( ! device ) return NULL; |
210 | proto = arp_protos_find( & device->protos, protocol ); |
212 | proto = arp_protos_find( & device->protos, protocol ); |
211 | if(( ! proto ) || ( proto->addr->length != target->length )) return NULL; |
213 | if(( ! proto ) || ( proto->addr->length != target->length )) return NULL; |
212 | addr = arp_addr_find( & proto->addresses, target->value, target->length ); |
214 | addr = arp_addr_find( & proto->addresses, target->value, target->length ); |
213 | if( addr ) return addr; |
215 | if( addr ) return addr; |
214 | // ARP packet content size = header + ( address + translation ) * 2 |
216 | // ARP packet content size = header + ( address + translation ) * 2 |
215 | length = 8 + ( CONVERT_SIZE( char, uint8_t, proto->addr->length ) + CONVERT_SIZE( char, uint8_t, device->addr->length )) * 2; |
217 | length = 8 + ( CONVERT_SIZE( char, uint8_t, proto->addr->length ) + CONVERT_SIZE( char, uint8_t, device->addr->length )) * 2; |
216 | if( length > device->content ){ |
218 | if( length > device->content ){ |
217 | return NULL; |
219 | return NULL; |
218 | } |
220 | } |
219 | packet = packet_create( device->prefix, length, device->sufix ); |
221 | packet = packet_get_5( arp_globals.networking_phone, SERVICE_ARP, device->addr_len, device->prefix, length, device->sufix ); |
220 | if( ! packet ) return NULL; |
222 | if( ! packet ) return NULL; |
221 | header = ( arp_header_ref ) packet_append( packet, length ); |
223 | header = ( arp_header_ref ) packet_append( packet, length ); |
222 | header->hardware = device->hardware; |
224 | header->hardware = device->hardware; |
223 | header->hardware_length = device->addr->length; |
225 | header->hardware_length = device->addr->length; |
224 | header->protocol = protocol_map( device->service, protocol ); |
226 | header->protocol = protocol_map( device->service, protocol ); |
225 | header->protocol_length = proto->addr->length; |
227 | header->protocol_length = proto->addr->length; |
226 | header->operation = ARPOP_REQUEST; |
228 | header->operation = ARPOP_REQUEST; |
227 | length = sizeof( arp_header_t ); |
229 | length = sizeof( arp_header_t ); |
228 | memcpy((( uint8_t * ) header ) + length, device->addr->value, device->addr->length ); |
230 | memcpy((( uint8_t * ) header ) + length, device->addr->value, device->addr->length ); |
229 | length += device->addr->length; |
231 | length += device->addr->length; |
230 | memcpy((( uint8_t * ) header ) + length, proto->addr->value, proto->addr->length ); |
232 | memcpy((( uint8_t * ) header ) + length, proto->addr->value, proto->addr->length ); |
231 | length += proto->addr->length; |
233 | length += proto->addr->length; |
232 | memset((( uint8_t * ) header ) + length, 0, device->addr->length ); |
234 | memset((( uint8_t * ) header ) + length, 0, device->addr->length ); |
233 | length += device->addr->length; |
235 | length += device->addr->length; |
234 | memcpy((( uint8_t * ) header ) + length, target->value, target->length ); |
236 | memcpy((( uint8_t * ) header ) + length, target->value, target->length ); |
235 | // TODO send to the device->broadcast_addr as arp protocol |
237 | // TODO send to the device->broadcast_addr as arp protocol |
236 | packet_send( packet, device->phone ); |
238 | async_msg_3( device->phone, NET_NETIF_SEND, device_id, SERVICE_ARP, packet_get_id( packet )); |
237 | return NULL; |
239 | return NULL; |
238 | } |
240 | } |
239 | 241 | ||
240 | int arp_receive_message( device_id_t device_id, packet_t packet ){ |
242 | int arp_receive_message( device_id_t device_id, packet_t packet ){ |
241 | ERROR_DECLARE; |
243 | ERROR_DECLARE; |
242 | 244 | ||
243 | size_t length; |
245 | size_t length; |
244 | arp_header_ref header; |
246 | arp_header_ref header; |
245 | arp_device_ref device; |
247 | arp_device_ref device; |
246 | arp_proto_ref proto; |
248 | arp_proto_ref proto; |
247 | // arp_addr_ref addr; |
249 | // arp_addr_ref addr; |
248 | measured_string_ref hw_source; |
250 | measured_string_ref hw_source; |
249 | /* measured_string_t proto_target; |
251 | /* measured_string_t proto_target; |
250 | aid_t message; |
252 | aid_t message; |
251 | ipcarg_t result; |
253 | ipcarg_t result; |
252 | int index; |
254 | int index; |
253 | ipc_call_t answer; |
255 | ipc_call_t answer; |
254 | */ int8_t * src_hw; |
256 | */ int8_t * src_hw; |
255 | int8_t * src_proto; |
257 | int8_t * src_proto; |
256 | int8_t * des_hw; |
258 | int8_t * des_hw; |
257 | int8_t * des_proto; |
259 | int8_t * des_proto; |
258 | 260 | ||
259 | length = packet_get_data_length( packet ); |
261 | length = packet_get_data_length( packet ); |
260 | if( length <= sizeof( arp_header_t )) return EINVAL; |
262 | if( length <= sizeof( arp_header_t )) return EINVAL; |
261 | device = arp_cache_find( & arp_globals.cache, device_id ); |
263 | device = arp_cache_find( & arp_globals.cache, device_id ); |
262 | if( ! device ) return ENOENT; |
264 | if( ! device ) return ENOENT; |
263 | header = ( arp_header_ref ) packet_get_data( packet ); |
265 | header = ( arp_header_ref ) packet_get_data( packet ); |
264 | if( header->hardware != device->hardware ) return EINVAL; |
266 | if( header->hardware != device->hardware ) return EINVAL; |
265 | if( length < sizeof( arp_header_t ) + ( header->hardware_length + header->protocol_length ) * 2 ) return EINVAL; |
267 | if( length < sizeof( arp_header_t ) + ( header->hardware_length + header->protocol_length ) * 2 ) return EINVAL; |
266 | proto = arp_protos_find( & device->protos, protocol_unmap( device->service, header->protocol )); |
268 | proto = arp_protos_find( & device->protos, protocol_unmap( device->service, header->protocol )); |
267 | if( ! proto ) return ENOENT; |
269 | if( ! proto ) return ENOENT; |
268 | src_hw = (( int8_t * ) header ) + sizeof( arp_header_t ); |
270 | src_hw = (( int8_t * ) header ) + sizeof( arp_header_t ); |
269 | src_proto = src_hw + header->hardware_length; |
271 | src_proto = src_hw + header->hardware_length; |
270 | des_hw = src_proto + header->protocol_length; |
272 | des_hw = src_proto + header->protocol_length; |
271 | des_proto = des_hw + header->hardware_length; |
273 | des_proto = des_hw + header->hardware_length; |
272 | hw_source = arp_addr_find( & proto->addresses, src_proto, header->protocol_length ); |
274 | hw_source = arp_addr_find( & proto->addresses, src_proto, header->protocol_length ); |
273 | // exists? |
275 | // exists? |
274 | if( hw_source ){ |
276 | if( hw_source ){ |
275 | if( hw_source->length != header->hardware_length ) return EINVAL; |
277 | if( hw_source->length != header->hardware_length ) return EINVAL; |
276 | memcpy( hw_source->value, src_hw, header->hardware_length ); |
278 | memcpy( hw_source->value, src_hw, header->hardware_length ); |
277 | } |
279 | } |
278 | // is my protocol address? |
280 | // is my protocol address? |
279 | /* proto_target.value = des_proto; |
281 | /* proto_target.value = des_proto; |
280 | proto_target.length = header->protocol_length; |
282 | proto_target.length = header->protocol_length; |
281 | // TODO send necessary? |
283 | // TODO send necessary? |
282 | message = async_send_0( proto->phone, NET_IL_MY_ADDR, & answer ); |
284 | message = async_send_0( proto->phone, NET_IL_MY_ADDR, & answer ); |
283 | if( ERROR_OCCURED( measured_strings_send( device->phone, & proto_target, 1 ))){ |
285 | if( ERROR_OCCURED( measured_strings_send( device->phone, & proto_target, 1 ))){ |
284 | async_wait_for( message, NULL ); |
286 | async_wait_for( message, NULL ); |
285 | return ERROR_CODE; |
287 | return ERROR_CODE; |
286 | } |
288 | } |
287 | async_wait_for( message, & result ); |
289 | async_wait_for( message, & result ); |
288 | if( result == EOK ){ |
290 | if( result == EOK ){ |
289 | */ if( proto->addr->length != header->hardware_length ) return EINVAL; |
291 | */ if( proto->addr->length != header->hardware_length ) return EINVAL; |
290 | if( ! strncmp( proto->addr->value, des_proto, proto->addr->length )){ |
292 | if( ! strncmp( proto->addr->value, des_proto, proto->addr->length )){ |
291 | // not already upadted? |
293 | // not already upadted? |
292 | if( ! hw_source ){ |
294 | if( ! hw_source ){ |
293 | hw_source = measured_string_create_bulk( src_hw, header->hardware_length ); |
295 | hw_source = measured_string_create_bulk( src_hw, header->hardware_length ); |
294 | if( ! hw_source ) return ENOMEM; |
296 | if( ! hw_source ) return ENOMEM; |
295 | ERROR_PROPAGATE( arp_addr_add( & proto->addresses, src_proto, header->protocol_length, hw_source )); |
297 | ERROR_PROPAGATE( arp_addr_add( & proto->addresses, src_proto, header->protocol_length, hw_source )); |
296 | } |
298 | } |
297 | if( header->operation == ARPOP_REQUEST ){ |
299 | if( header->operation == ARPOP_REQUEST ){ |
298 | header->operation = ARPOP_REPLY; |
300 | header->operation = ARPOP_REPLY; |
299 | /* for( index = 0; index + header->hardware_length < header->protocol_length; index += header->hardware_length ){ |
301 | /* for( index = 0; index + header->hardware_length < header->protocol_length; index += header->hardware_length ){ |
300 | memcpy( src_hw, src_proto + index, header->hardware_length ); |
302 | memcpy( src_hw, src_proto + index, header->hardware_length ); |
301 | memcpy( src_proto + index, des_proto + index, header->hardware_length ); |
303 | memcpy( src_proto + index, des_proto + index, header->hardware_length ); |
302 | memcpy( des_proto + index, src_hw, header->hardware_length ); |
304 | memcpy( des_proto + index, src_hw, header->hardware_length ); |
303 | } |
305 | } |
304 | memcpy( src_hw, src_proto + index, header->hardware_length - header->protocol_length ); |
306 | memcpy( src_hw, src_proto + index, header->hardware_length - header->protocol_length ); |
305 | memcpy( src_proto + index, des_proto + index, header->hardware_length - header->protocol_length ); |
307 | memcpy( src_proto + index, des_proto + index, header->hardware_length - header->protocol_length ); |
306 | memcpy( des_proto + index, src_hw, header->hardware_length - header->protocol_length ); |
308 | memcpy( des_proto + index, src_hw, header->hardware_length - header->protocol_length ); |
307 | memcpy( src_hw, des_hw, header->hardware_length ); |
309 | memcpy( src_hw, des_hw, header->hardware_length ); |
308 | memcpy( des_hw, hw_source->value, hw_source->length ); |
310 | memcpy( des_hw, hw_source->value, hw_source->length ); |
309 | */ memcpy( des_proto, src_proto, header->protocol_length ); |
311 | */ memcpy( des_proto, src_proto, header->protocol_length ); |
310 | memcpy( src_proto, proto->addr->value, header->protocol_length ); |
312 | memcpy( src_proto, proto->addr->value, header->protocol_length ); |
311 | memcpy( src_hw, des_hw, header->hardware_length ); |
313 | memcpy( src_hw, des_hw, header->hardware_length ); |
312 | memcpy( des_hw, hw_source->value, hw_source->length ); |
314 | memcpy( des_hw, hw_source->value, hw_source->length ); |
313 | // TODO send to the hw_source as arp protocol |
315 | // TODO send to the hw_source as arp protocol |
- | 316 | async_msg_3( device->phone, NET_NETIF_SEND, device_id, SERVICE_ARP, packet_get_id( packet )); |
|
- | 317 | }else{ |
|
314 | packet_send( packet, device->phone ); |
318 | packet_release( arp_globals.networking_phone, packet_get_id( packet )); |
315 | } |
319 | } |
316 | } |
320 | } |
317 | return EOK; |
321 | return EOK; |
318 | } |
322 | } |
319 | 323 | ||
320 | int arp_clear_device_message( device_id_t device_id ){ |
324 | int arp_clear_device_message( device_id_t device_id ){ |
321 | arp_device_ref device; |
325 | arp_device_ref device; |
322 | 326 | ||
323 | device = arp_cache_find( & arp_globals.cache, device_id ); |
327 | device = arp_cache_find( & arp_globals.cache, device_id ); |
324 | if( ! device ) return ENOENT; |
328 | if( ! device ) return ENOENT; |
325 | clear_device( device ); |
329 | clear_device( device ); |
326 | return EOK; |
330 | return EOK; |
327 | } |
331 | } |
328 | 332 | ||
329 | void clear_device( arp_device_ref device ){ |
333 | void clear_device( arp_device_ref device ){ |
330 | int count; |
334 | int count; |
331 | arp_proto_ref proto; |
335 | arp_proto_ref proto; |
332 | 336 | ||
333 | count = arp_protos_count( & device->protos ); |
337 | count = arp_protos_count( & device->protos ); |
334 | while( count > 0 ){ |
338 | while( count > 0 ){ |
335 | proto = arp_protos_get_index( & device->protos, count ); |
339 | proto = arp_protos_get_index( & device->protos, count ); |
336 | if( proto->addr ) free( proto->addr ); |
340 | if( proto->addr ) free( proto->addr ); |
337 | if( proto->addr_data ) free( proto->addr_data ); |
341 | if( proto->addr_data ) free( proto->addr_data ); |
338 | arp_addr_destroy( & proto->addresses ); |
342 | arp_addr_destroy( & proto->addresses ); |
339 | -- count; |
343 | -- count; |
340 | } |
344 | } |
341 | arp_protos_clear( & device->protos ); |
345 | arp_protos_clear( & device->protos ); |
342 | } |
346 | } |
343 | 347 | ||
344 | int arp_clean_cache_message( void ){ |
348 | int arp_clean_cache_message( void ){ |
345 | int count; |
349 | int count; |
346 | arp_device_ref device; |
350 | arp_device_ref device; |
347 | 351 | ||
348 | count = arp_cache_count( & arp_globals.cache ); |
352 | count = arp_cache_count( & arp_globals.cache ); |
349 | while( count > 0 ){ |
353 | while( count > 0 ){ |
350 | device = arp_cache_get_index( & arp_globals.cache, count ); |
354 | device = arp_cache_get_index( & arp_globals.cache, count ); |
351 | if( device ){ |
355 | if( device ){ |
352 | clear_device( device ); |
356 | clear_device( device ); |
353 | if( device->broadcast_addr ) free( device->broadcast_addr ); |
357 | if( device->broadcast_addr ) free( device->broadcast_addr ); |
354 | if( device->broadcast_data ) free( device->broadcast_data ); |
358 | if( device->broadcast_data ) free( device->broadcast_data ); |
355 | } |
359 | } |
356 | } |
360 | } |
357 | arp_cache_clear( & arp_globals.cache ); |
361 | arp_cache_clear( & arp_globals.cache ); |
358 | return EOK; |
362 | return EOK; |
359 | } |
363 | } |
360 | 364 | ||
361 | int arp_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
365 | int arp_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
362 | ERROR_DECLARE; |
366 | ERROR_DECLARE; |
363 | 367 | ||
364 | // packet_t packet; |
368 | // packet_t packet; |
365 | measured_string_ref address; |
369 | measured_string_ref address; |
366 | measured_string_ref translation; |
370 | measured_string_ref translation; |
367 | char * data; |
371 | char * data; |
368 | 372 | ||
369 | * answer_count = 0; |
373 | * answer_count = 0; |
370 | switch( IPC_GET_METHOD( * call )){ |
374 | switch( IPC_GET_METHOD( * call )){ |
371 | case IPC_M_PHONE_HUNGUP: |
375 | case IPC_M_PHONE_HUNGUP: |
372 | return EOK; |
376 | return EOK; |
373 | case NET_ARP_DEVICE: |
377 | case NET_ARP_DEVICE: |
374 | ERROR_PROPAGATE( measured_strings_receive( & address, & data, 1 )); |
378 | ERROR_PROPAGATE( measured_strings_receive( & address, & data, 1 )); |
375 | if( ERROR_OCCURED( arp_device_message( IPC_GET_DEVICE( call ), IPC_GET_SERVICE( call ), IPC_GET_PROTO( call ), address ))){ |
379 | if( ERROR_OCCURED( arp_device_message( IPC_GET_DEVICE( call ), IPC_GET_SERVICE( call ), IPC_GET_PROTO( call ), address ))){ |
376 | free( address ); |
380 | free( address ); |
377 | free( data ); |
381 | free( data ); |
378 | } |
382 | } |
379 | return ERROR_CODE; |
383 | return ERROR_CODE; |
380 | case NET_ARP_TRANSLATE: |
384 | case NET_ARP_TRANSLATE: |
381 | ERROR_PROPAGATE( measured_strings_receive( & address, & data, 1 )); |
385 | ERROR_PROPAGATE( measured_strings_receive( & address, & data, 1 )); |
382 | translation = arp_translate_message( IPC_GET_DEVICE( call ), IPC_GET_PROTO( call ), address ); |
386 | translation = arp_translate_message( IPC_GET_DEVICE( call ), IPC_GET_PROTO( call ), address ); |
383 | free( address ); |
387 | free( address ); |
384 | free( data ); |
388 | free( data ); |
385 | if( ! translation ) return ENOENT; |
389 | if( ! translation ) return ENOENT; |
386 | return measured_strings_reply( translation, 1 ); |
390 | return measured_strings_reply( translation, 1 ); |
387 | case NET_ARP_CLEAR_DEVICE: |
391 | case NET_ARP_CLEAR_DEVICE: |
388 | return arp_clear_device_message( IPC_GET_DEVICE( call )); |
392 | return arp_clear_device_message( IPC_GET_DEVICE( call )); |
389 | case NET_ARP_CLEAN_CACHE: |
393 | case NET_ARP_CLEAN_CACHE: |
390 | return arp_clean_cache_message(); |
394 | return arp_clean_cache_message(); |
391 | } |
395 | } |
392 | return ENOTSUP; |
396 | return ENOTSUP; |
393 | } |
397 | } |
394 | 398 | ||
395 | void arp_receiver( ipc_callid_t iid, ipc_call_t * icall ){ |
399 | void arp_receiver( ipc_callid_t iid, ipc_call_t * icall ){ |
396 | ERROR_DECLARE; |
400 | ERROR_DECLARE; |
397 | 401 | ||
398 | ipc_callid_t callid; |
402 | ipc_callid_t callid; |
399 | ipc_call_t call; |
403 | ipc_call_t call; |
400 | // int result; |
404 | // int result; |
401 | packet_t packet; |
405 | packet_t packet; |
402 | 406 | ||
403 | /* |
407 | /* |
404 | * Accept the connection |
408 | * Accept the connection |
405 | * - Answer the first IPC_M_CONNECT_ME_TO call. |
409 | * - Answer the first IPC_M_CONNECT_ME_TO call. |
406 | */ |
410 | */ |
407 | //TODO auto accept? |
411 | //TODO auto accept? |
408 | //ipc_answer_0( iid, EOK ); |
412 | //ipc_answer_0( iid, EOK ); |
409 | 413 | ||
410 | while( true ){ |
414 | while( true ){ |
411 | callid = async_get_call( & call ); |
415 | callid = async_get_call( & call ); |
412 | switch( IPC_GET_METHOD( call )){ |
416 | switch( IPC_GET_METHOD( call )){ |
413 | case NET_IL_DEVICE_STATE: |
417 | case NET_IL_DEVICE_STATE: |
414 | //TODO clear device if off? |
418 | //TODO clear device if off? |
415 | break; |
419 | break; |
416 | case NET_IL_RECEIVED: |
420 | case NET_IL_RECEIVED: |
417 | if( ! ERROR_OCCURED( packet_receive( & packet ))){ |
421 | if( ! ERROR_OCCURED( packet_translate( arp_globals.networking_phone, & packet, IPC_GET_PACKET( & call )))){ |
418 | ERROR_CODE = arp_receive_message( IPC_GET_DEVICE( & call ), packet ); |
422 | ERROR_CODE = arp_receive_message( IPC_GET_DEVICE( & call ), packet ); |
419 | } |
423 | } |
420 | ipc_answer_0( callid, ERROR_CODE ); |
424 | ipc_answer_0( callid, ERROR_CODE ); |
421 | break; |
425 | break; |
422 | default: |
426 | default: |
423 | ipc_answer_0( callid, ENOTSUP ); |
427 | ipc_answer_0( callid, ENOTSUP ); |
424 | } |
428 | } |
425 | } |
429 | } |
426 | } |
430 | } |
427 | 431 | ||
428 | /** @} |
432 | /** @} |
429 | */ |
433 | */ |
430 | 434 |