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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 eth |
29 | /** @addtogroup eth |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | 32 | ||
33 | /** @file |
33 | /** @file |
34 | * Ethernet module implementation. |
34 | * Ethernet module implementation. |
35 | * @see eth.h |
35 | * @see eth.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 <stdio.h> |
41 | #include <stdio.h> |
42 | #include <string.h> |
42 | #include <string.h> |
43 | 43 | ||
44 | #include <ipc/ipc.h> |
44 | #include <ipc/ipc.h> |
45 | #include <ipc/services.h> |
45 | #include <ipc/services.h> |
46 | 46 | ||
47 | #include "../../err.h" |
47 | #include "../../err.h" |
48 | #include "../../messages.h" |
48 | #include "../../messages.h" |
49 | #include "../../modules.h" |
49 | #include "../../modules.h" |
50 | 50 | ||
51 | #include "../../include/byteorder.h" |
51 | #include "../../include/byteorder.h" |
52 | #include "../../include/crc.h" |
52 | #include "../../include/crc.h" |
53 | #include "../../include/ethernet_lsap.h" |
53 | #include "../../include/ethernet_lsap.h" |
54 | #include "../../include/ethernet_protocols.h" |
54 | #include "../../include/ethernet_protocols.h" |
55 | #include "../../include/protocol_map.h" |
55 | #include "../../include/protocol_map.h" |
56 | #include "../../include/device.h" |
56 | #include "../../include/device.h" |
57 | #include "../../include/netif_interface.h" |
57 | #include "../../include/netif_interface.h" |
58 | #include "../../include/net_interface.h" |
58 | #include "../../include/net_interface.h" |
59 | #include "../../include/nil_interface.h" |
59 | #include "../../include/nil_interface.h" |
60 | #include "../../include/il_interface.h" |
60 | #include "../../include/il_interface.h" |
61 | 61 | ||
62 | #include "../../structures/measured_strings.h" |
62 | #include "../../structures/measured_strings.h" |
63 | #include "../../structures/packet/packet_client.h" |
63 | #include "../../structures/packet/packet_client.h" |
64 | 64 | ||
65 | #include "../nil_module.h" |
65 | #include "../nil_module.h" |
66 | 66 | ||
67 | #include "eth.h" |
67 | #include "eth.h" |
68 | #include "eth_header.h" |
68 | #include "eth_header.h" |
69 | 69 | ||
70 | /** Reserved packet prefix length. |
70 | /** Reserved packet prefix length. |
71 | */ |
71 | */ |
72 | #define ETH_PREFIX ( sizeof( eth_header_t ) + sizeof( eth_header_lsap_t ) + sizeof( eth_header_snap_t )) |
72 | #define ETH_PREFIX ( sizeof( eth_header_t ) + sizeof( eth_header_lsap_t ) + sizeof( eth_header_snap_t )) |
73 | 73 | ||
74 | /** Reserved packet suffix length. |
74 | /** Reserved packet suffix length. |
75 | */ |
75 | */ |
76 | #define ETH_SUFFIX sizeof( eth_fcs_t ) |
76 | #define ETH_SUFFIX sizeof( eth_fcs_t ) |
77 | 77 | ||
78 | /** Maximum packet content length. |
78 | /** Maximum packet content length. |
79 | */ |
79 | */ |
80 | #define ETH_MAX_CONTENT 1500 |
80 | #define ETH_MAX_CONTENT 1500 |
81 | 81 | ||
82 | /** Minimum packet content length. |
82 | /** Minimum packet content length. |
83 | */ |
83 | */ |
84 | #define ETH_MIN_CONTENT 46u |
84 | #define ETH_MIN_CONTENT 46u |
85 | 85 | ||
86 | /** Maximum tagged packet content length. |
86 | /** Maximum tagged packet content length. |
87 | */ |
87 | */ |
88 | #define ETH_MAX_TAGGED_CONTENT( flags ) ( ETH_MAX_CONTENT - (( IS_8023_2_LSAP( flags ) || IS_8023_2_SNAP( flags )) ? sizeof( eth_header_lsap_t ) : 0 ) - ( IS_8023_2_SNAP( flags ) ? sizeof( eth_header_snap_t ) : 0 )) |
88 | #define ETH_MAX_TAGGED_CONTENT( flags ) ( ETH_MAX_CONTENT - (( IS_8023_2_LSAP( flags ) || IS_8023_2_SNAP( flags )) ? sizeof( eth_header_lsap_t ) : 0 ) - ( IS_8023_2_SNAP( flags ) ? sizeof( eth_header_snap_t ) : 0 )) |
89 | 89 | ||
90 | /** Minimum tagged packet content length. |
90 | /** Minimum tagged packet content length. |
91 | */ |
91 | */ |
92 | #define ETH_MIN_TAGGED_CONTENT( flags ) ( ETH_MIN_CONTENT - (( IS_8023_2_LSAP( flags ) || IS_8023_2_SNAP( flags )) ? sizeof( eth_header_lsap_t ) : 0 ) - ( IS_8023_2_SNAP( flags ) ? sizeof( eth_header_snap_t ) : 0 )) |
92 | #define ETH_MIN_TAGGED_CONTENT( flags ) ( ETH_MIN_CONTENT - (( IS_8023_2_LSAP( flags ) || IS_8023_2_SNAP( flags )) ? sizeof( eth_header_lsap_t ) : 0 ) - ( IS_8023_2_SNAP( flags ) ? sizeof( eth_header_snap_t ) : 0 )) |
93 | 93 | ||
94 | /** Dummy flag shift value. |
94 | /** Dummy flag shift value. |
95 | */ |
95 | */ |
96 | #define ETH_DUMMY_SHIFT 0 |
96 | #define ETH_DUMMY_SHIFT 0 |
97 | 97 | ||
98 | /** Mode flag shift value. |
98 | /** Mode flag shift value. |
99 | */ |
99 | */ |
100 | #define ETH_MODE_SHIFT 1 |
100 | #define ETH_MODE_SHIFT 1 |
101 | 101 | ||
102 | /** Dummy device flag. |
102 | /** Dummy device flag. |
103 | * Preamble and FCS are mandatory part of the packets. |
103 | * Preamble and FCS are mandatory part of the packets. |
104 | */ |
104 | */ |
105 | #define ETH_DUMMY ( 1 << ETH_DUMMY_SHIFT ) |
105 | #define ETH_DUMMY ( 1 << ETH_DUMMY_SHIFT ) |
106 | 106 | ||
107 | /** Returns the dummy flag. |
107 | /** Returns the dummy flag. |
108 | * @see ETH_DUMMY |
108 | * @see ETH_DUMMY |
109 | */ |
109 | */ |
110 | #define IS_DUMMY( flags ) (( flags ) & ETH_DUMMY ) |
110 | #define IS_DUMMY( flags ) (( flags ) & ETH_DUMMY ) |
111 | 111 | ||
112 | /** Device mode flags. |
112 | /** Device mode flags. |
113 | * @see ETH_DIX |
113 | * @see ETH_DIX |
114 | * @see ETH_8023_2_LSAP |
114 | * @see ETH_8023_2_LSAP |
115 | * @see ETH_8023_2_SNAP |
115 | * @see ETH_8023_2_SNAP |
116 | */ |
116 | */ |
117 | #define ETH_MODE_MASK ( 3 << ETH_MODE_SHIFT ) |
117 | #define ETH_MODE_MASK ( 3 << ETH_MODE_SHIFT ) |
118 | 118 | ||
119 | /** DIX Ethernet mode flag. |
119 | /** DIX Ethernet mode flag. |
120 | */ |
120 | */ |
121 | #define ETH_DIX ( 1 << ETH_MODE_SHIFT ) |
121 | #define ETH_DIX ( 1 << ETH_MODE_SHIFT ) |
122 | 122 | ||
123 | /** Returns whether the DIX Ethernet mode flag is set. |
123 | /** Returns whether the DIX Ethernet mode flag is set. |
124 | * @param flags The ethernet flags. Input parameter. |
124 | * @param flags The ethernet flags. Input parameter. |
125 | * @see ETH_DIX |
125 | * @see ETH_DIX |
126 | */ |
126 | */ |
127 | #define IS_DIX( flags ) ((( flags ) & ETH_MODE_MASK ) == ETH_DIX ) |
127 | #define IS_DIX( flags ) ((( flags ) & ETH_MODE_MASK ) == ETH_DIX ) |
128 | 128 | ||
129 | /** 802.3 + 802.2 + LSAP mode flag. |
129 | /** 802.3 + 802.2 + LSAP mode flag. |
130 | */ |
130 | */ |
131 | #define ETH_8023_2_LSAP ( 2 << ETH_MODE_SHIFT ) |
131 | #define ETH_8023_2_LSAP ( 2 << ETH_MODE_SHIFT ) |
132 | 132 | ||
133 | /** Returns whether the 802.3 + 802.2 + LSAP mode flag is set. |
133 | /** Returns whether the 802.3 + 802.2 + LSAP mode flag is set. |
134 | * @param flags The ethernet flags. Input parameter. |
134 | * @param flags The ethernet flags. Input parameter. |
135 | * @see ETH_8023_2_LSAP |
135 | * @see ETH_8023_2_LSAP |
136 | */ |
136 | */ |
137 | #define IS_8023_2_LSAP( flags ) ((( flags ) & ETH_MODE_MASK ) == ETH_8023_2_LSAP ) |
137 | #define IS_8023_2_LSAP( flags ) ((( flags ) & ETH_MODE_MASK ) == ETH_8023_2_LSAP ) |
138 | 138 | ||
139 | /** 802.3 + 802.2 + LSAP + SNAP mode flag. |
139 | /** 802.3 + 802.2 + LSAP + SNAP mode flag. |
140 | */ |
140 | */ |
141 | #define ETH_8023_2_SNAP ( 3 << ETH_MODE_SHIFT ) |
141 | #define ETH_8023_2_SNAP ( 3 << ETH_MODE_SHIFT ) |
142 | 142 | ||
143 | /** Returns whether the 802.3 + 802.2 + LSAP + SNAP mode flag is set. |
143 | /** Returns whether the 802.3 + 802.2 + LSAP + SNAP mode flag is set. |
144 | * @param flags The ethernet flags. Input parameter. |
144 | * @param flags The ethernet flags. Input parameter. |
145 | * @see ETH_8023_2_SNAP |
145 | * @see ETH_8023_2_SNAP |
146 | */ |
146 | */ |
147 | #define IS_8023_2_SNAP( flags ) ((( flags ) & ETH_MODE_MASK ) == ETH_8023_2_SNAP ) |
147 | #define IS_8023_2_SNAP( flags ) ((( flags ) & ETH_MODE_MASK ) == ETH_8023_2_SNAP ) |
148 | 148 | ||
149 | /** Type definition of the ethernet address type. |
149 | /** Type definition of the ethernet address type. |
150 | * @see eth_addr_type |
150 | * @see eth_addr_type |
151 | */ |
151 | */ |
152 | typedef enum eth_addr_type eth_addr_type_t; |
152 | typedef enum eth_addr_type eth_addr_type_t; |
153 | 153 | ||
154 | /** Type definition of the ethernet address type pointer. |
154 | /** Type definition of the ethernet address type pointer. |
155 | * @see eth_addr_type |
155 | * @see eth_addr_type |
156 | */ |
156 | */ |
157 | typedef eth_addr_type_t * eth_addr_type_ref; |
157 | typedef eth_addr_type_t * eth_addr_type_ref; |
158 | 158 | ||
159 | /** Ethernet address type. |
159 | /** Ethernet address type. |
160 | */ |
160 | */ |
161 | enum eth_addr_type{ |
161 | enum eth_addr_type{ |
162 | /** Local address. |
162 | /** Local address. |
163 | */ |
163 | */ |
164 | ETH_LOCAL_ADDR, |
164 | ETH_LOCAL_ADDR, |
165 | /** Broadcast address. |
165 | /** Broadcast address. |
166 | */ |
166 | */ |
167 | ETH_BROADCAST_ADDR |
167 | ETH_BROADCAST_ADDR |
168 | }; |
168 | }; |
169 | 169 | ||
170 | /** Ethernet module global data. |
170 | /** Ethernet module global data. |
171 | */ |
171 | */ |
172 | eth_globals_t eth_globals; |
172 | eth_globals_t eth_globals; |
173 | 173 | ||
- | 174 | /** @name Message processing functions |
|
- | 175 | */ |
|
- | 176 | /*@{*/ |
|
- | 177 | ||
174 | /** Processes IPC messages from the registered device driver modules in an infinite loop. |
178 | /** Processes IPC messages from the registered device driver modules in an infinite loop. |
175 | * @param iid The message identifier. Input parameter. |
179 | * @param iid The message identifier. Input parameter. |
176 | * @param icall The message parameters. Input/output parameter. |
180 | * @param icall The message parameters. Input/output parameter. |
177 | */ |
181 | */ |
178 | void eth_receiver( ipc_callid_t iid, ipc_call_t * icall ); |
182 | void eth_receiver( ipc_callid_t iid, ipc_call_t * icall ); |
179 | 183 | ||
180 | /** Registers new device or updates the MTU of an existing one. |
184 | /** Registers new device or updates the MTU of an existing one. |
181 | * Determines the device local hardware address. |
185 | * Determines the device local hardware address. |
182 | * @param device_id The new device identifier. Input parameter. |
186 | * @param device_id The new device identifier. Input parameter. |
183 | * @param service The device driver service. Input parameter. |
187 | * @param service The device driver service. Input parameter. |
184 | * @param mtu The device maximum transmission unit. Input parameter. |
188 | * @param mtu The device maximum transmission unit. Input parameter. |
185 | * @returns EOK on success. |
189 | * @returns EOK on success. |
186 | * @returns EEXIST if the device with the different service exists. |
190 | * @returns EEXIST if the device with the different service exists. |
187 | * @returns ENOMEM if there is not enough memory left. |
191 | * @returns ENOMEM if there is not enough memory left. |
188 | * @returns Other error codes as defined for the net_get_device_conf_req() function. |
192 | * @returns Other error codes as defined for the net_get_device_conf_req() function. |
189 | * @returns Other error codes as defined for the netif_bind_service() function. |
193 | * @returns Other error codes as defined for the netif_bind_service() function. |
190 | * @returns Other error codes as defined for the netif_get_addr() function. |
194 | * @returns Other error codes as defined for the netif_get_addr() function. |
191 | */ |
195 | */ |
192 | int eth_device_message( device_id_t device_id, services_t service, size_t mtu ); |
196 | int eth_device_message( device_id_t device_id, services_t service, size_t mtu ); |
193 | 197 | ||
194 | /** Registers receiving module service. |
198 | /** Registers receiving module service. |
195 | * Passes received packets for this service. |
199 | * Passes received packets for this service. |
196 | * @param service The module service. Input parameter. |
200 | * @param service The module service. Input parameter. |
197 | * @param phone The service phone. Input parameter. |
201 | * @param phone The service phone. Input parameter. |
198 | * @returns EOK on success. |
202 | * @returns EOK on success. |
199 | * @returns ENOENT if the service is not known. |
203 | * @returns ENOENT if the service is not known. |
200 | * @returns ENOMEM if there is not enough memory left. |
204 | * @returns ENOMEM if there is not enough memory left. |
201 | */ |
205 | */ |
202 | int eth_register_message( services_t service, int phone ); |
206 | int eth_register_message( services_t service, int phone ); |
203 | 207 | ||
204 | /** Returns the device packet dimensions for sending. |
208 | /** Returns the device packet dimensions for sending. |
205 | * @param device_id The device identifier. Input parameter. |
209 | * @param device_id The device identifier. Input parameter. |
206 | * @param addr_len The minimum reserved address length. Output parameter. |
210 | * @param addr_len The minimum reserved address length. Output parameter. |
207 | * @param prefix The minimum reserved prefix size. Output parameter. |
211 | * @param prefix The minimum reserved prefix size. Output parameter. |
208 | * @param content The maximum content size. Output parameter. |
212 | * @param content The maximum content size. Output parameter. |
209 | * @param suffix The minimum reserved suffix size. Output parameter. |
213 | * @param suffix The minimum reserved suffix size. Output parameter. |
210 | * @returns EOK on success. |
214 | * @returns EOK on success. |
211 | * @returns EBADMEM if either one of the parameters is NULL. |
215 | * @returns EBADMEM if either one of the parameters is NULL. |
212 | * @returns ENOENT if there is no such device. |
216 | * @returns ENOENT if there is no such device. |
213 | */ |
217 | */ |
214 | int eth_packet_space_message( device_id_t device_id, size_t * addr_len, size_t * prefix, size_t * content, size_t * suffix ); |
218 | int eth_packet_space_message( device_id_t device_id, size_t * addr_len, size_t * prefix, size_t * content, size_t * suffix ); |
215 | 219 | ||
216 | /** Returns the device hardware address. |
220 | /** Returns the device hardware address. |
217 | * @param device_id The device identifier. Input parameter. |
221 | * @param device_id The device identifier. Input parameter. |
218 | * @param type Type of the desired address. Input parameter |
222 | * @param type Type of the desired address. Input parameter |
219 | * @param address The device hardware address. Output parameter. |
223 | * @param address The device hardware address. Output parameter. |
220 | * @returns EOK on success. |
224 | * @returns EOK on success. |
221 | * @returns EBADMEM if the address parameter is NULL. |
225 | * @returns EBADMEM if the address parameter is NULL. |
222 | * @returns ENOENT if there no such device. |
226 | * @returns ENOENT if there no such device. |
223 | */ |
227 | */ |
224 | int eth_addr_message( device_id_t device_id, eth_addr_type_t type, measured_string_ref * address ); |
228 | int eth_addr_message( device_id_t device_id, eth_addr_type_t type, measured_string_ref * address ); |
225 | 229 | ||
226 | /** Sends the packet queue. |
230 | /** Sends the packet queue. |
227 | * Sends only packet successfully processed by the eth_prepare_packet() function. |
231 | * Sends only packet successfully processed by the eth_prepare_packet() function. |
228 | * @param device_id The device identifier. Input parameter. |
232 | * @param device_id The device identifier. Input parameter. |
229 | * @param packet The packet queue. Input parameter. |
233 | * @param packet The packet queue. Input parameter. |
230 | * @param sender The sending module service. Input parameter. |
234 | * @param sender The sending module service. Input parameter. |
231 | * @returns EOK on success. |
235 | * @returns EOK on success. |
232 | * @returns ENOENT if there no such device. |
236 | * @returns ENOENT if there no such device. |
233 | * @returns EINVAL if the service parameter is not known. |
237 | * @returns EINVAL if the service parameter is not known. |
234 | */ |
238 | */ |
235 | int eth_send_message( device_id_t device_id, packet_t packet, services_t sender ); |
239 | int eth_send_message( device_id_t device_id, packet_t packet, services_t sender ); |
236 | 240 | ||
- | 241 | /*@}*/ |
|
- | 242 | ||
237 | /** Processes the received packet and chooses the target registered module. |
243 | /** Processes the received packet and chooses the target registered module. |
238 | * @param flags The device flags. Input parameter. |
244 | * @param flags The device flags. Input parameter. |
239 | * @param packet The packet. Input parameter. |
245 | * @param packet The packet. Input parameter. |
240 | * @returns The target registered module. |
246 | * @returns The target registered module. |
241 | * @returns NULL if the packet is not long enough. |
247 | * @returns NULL if the packet is not long enough. |
242 | * @returns NULL if the packet is too long. |
248 | * @returns NULL if the packet is too long. |
243 | * @returns NULL if the raw ethernet protocol is used. |
249 | * @returns NULL if the raw ethernet protocol is used. |
244 | * @returns NULL if the dummy device FCS checksum is invalid. |
250 | * @returns NULL if the dummy device FCS checksum is invalid. |
245 | * @returns NULL if the packet address length is not big enough. |
251 | * @returns NULL if the packet address length is not big enough. |
246 | */ |
252 | */ |
247 | eth_proto_ref eth_process_packet( int flags, packet_t packet ); |
253 | eth_proto_ref eth_process_packet( int flags, packet_t packet ); |
248 | 254 | ||
249 | /** Prepares the packet for sending. |
255 | /** Prepares the packet for sending. |
250 | * @param flags The device flags. Input parameter. |
256 | * @param flags The device flags. Input parameter. |
251 | * @param packet The packet. Input parameter. |
257 | * @param packet The packet. Input parameter. |
252 | * @param src_addr The source hardware address. Input parameter. |
258 | * @param src_addr The source hardware address. Input parameter. |
253 | * @param ethertype The ethernet protocol type. Input parameter. |
259 | * @param ethertype The ethernet protocol type. Input parameter. |
254 | * @param mtu The device maximum transmission unit. Input parameter. |
260 | * @param mtu The device maximum transmission unit. Input parameter. |
255 | * @returns EOK on success. |
261 | * @returns EOK on success. |
256 | * @returns EINVAL if the packet addresses length is not long enough. |
262 | * @returns EINVAL if the packet addresses length is not long enough. |
257 | * @returns EINVAL if the packet is bigger than the device MTU. |
263 | * @returns EINVAL if the packet is bigger than the device MTU. |
258 | * @returns ENOMEM if there is not enough memory in the packet. |
264 | * @returns ENOMEM if there is not enough memory in the packet. |
259 | */ |
265 | */ |
260 | int eth_prepare_packet( int flags, packet_t packet, uint8_t * src_addr, int ethertype, size_t mtu ); |
266 | int eth_prepare_packet( int flags, packet_t packet, uint8_t * src_addr, int ethertype, size_t mtu ); |
261 | 267 | ||
262 | DEVICE_MAP_IMPLEMENT( eth_devices, eth_device_t ) |
268 | DEVICE_MAP_IMPLEMENT( eth_devices, eth_device_t ) |
263 | 269 | ||
264 | INT_MAP_IMPLEMENT( eth_protos, eth_proto_t ) |
270 | INT_MAP_IMPLEMENT( eth_protos, eth_proto_t ) |
265 | 271 | ||
266 | int nil_device_state_msg( int nil_phone, device_id_t device_id, int state ){ |
272 | int nil_device_state_msg( int nil_phone, device_id_t device_id, int state ){ |
267 | int index; |
273 | int index; |
268 | eth_proto_ref proto; |
274 | eth_proto_ref proto; |
269 | 275 | ||
270 | //TODO clear device if off? |
276 | //TODO clear device if off? |
271 | fibril_rwlock_read_lock( & eth_globals.protos_lock ); |
277 | fibril_rwlock_read_lock( & eth_globals.protos_lock ); |
272 | for( index = eth_protos_count( & eth_globals.protos ) - 1; index >= 0; -- index ){ |
278 | for( index = eth_protos_count( & eth_globals.protos ) - 1; index >= 0; -- index ){ |
273 | proto = eth_protos_get_index( & eth_globals.protos, index ); |
279 | proto = eth_protos_get_index( & eth_globals.protos, index ); |
274 | if( proto && proto->phone ) il_device_state_msg( proto->phone, device_id, state, proto->service ); |
280 | if( proto && proto->phone ) il_device_state_msg( proto->phone, device_id, state, proto->service ); |
275 | } |
281 | } |
276 | fibril_rwlock_read_unlock( & eth_globals.protos_lock ); |
282 | fibril_rwlock_read_unlock( & eth_globals.protos_lock ); |
277 | return EOK; |
283 | return EOK; |
278 | } |
284 | } |
279 | 285 | ||
280 | int nil_initialize( int net_phone ){ |
286 | int nil_initialize( int net_phone ){ |
281 | ERROR_DECLARE; |
287 | ERROR_DECLARE; |
282 | 288 | ||
283 | fibril_rwlock_initialize( & eth_globals.devices_lock ); |
289 | fibril_rwlock_initialize( & eth_globals.devices_lock ); |
284 | fibril_rwlock_initialize( & eth_globals.protos_lock ); |
290 | fibril_rwlock_initialize( & eth_globals.protos_lock ); |
285 | fibril_rwlock_write_lock( & eth_globals.devices_lock ); |
291 | fibril_rwlock_write_lock( & eth_globals.devices_lock ); |
286 | fibril_rwlock_write_lock( & eth_globals.protos_lock ); |
292 | fibril_rwlock_write_lock( & eth_globals.protos_lock ); |
287 | eth_globals.net_phone = net_phone; |
293 | eth_globals.net_phone = net_phone; |
288 | eth_globals.broadcast_addr = measured_string_create_bulk( "\xFF\xFF\xFF\xFF\xFF\xFF", CONVERT_SIZE( uint8_t, char, ETH_ADDR )); |
294 | eth_globals.broadcast_addr = measured_string_create_bulk( "\xFF\xFF\xFF\xFF\xFF\xFF", CONVERT_SIZE( uint8_t, char, ETH_ADDR )); |
289 | if( ! eth_globals.broadcast_addr ) return ENOMEM; |
295 | if( ! eth_globals.broadcast_addr ) return ENOMEM; |
290 | ERROR_PROPAGATE( eth_devices_initialize( & eth_globals.devices )); |
296 | ERROR_PROPAGATE( eth_devices_initialize( & eth_globals.devices )); |
291 | if( ERROR_OCCURRED( eth_protos_initialize( & eth_globals.protos ))){ |
297 | if( ERROR_OCCURRED( eth_protos_initialize( & eth_globals.protos ))){ |
292 | eth_devices_destroy( & eth_globals.devices ); |
298 | eth_devices_destroy( & eth_globals.devices ); |
293 | return ERROR_CODE; |
299 | return ERROR_CODE; |
294 | } |
300 | } |
295 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
301 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
296 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
302 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
297 | return EOK; |
303 | return EOK; |
298 | } |
304 | } |
299 | 305 | ||
300 | int eth_device_message( device_id_t device_id, services_t service, size_t mtu ){ |
306 | int eth_device_message( device_id_t device_id, services_t service, size_t mtu ){ |
301 | ERROR_DECLARE; |
307 | ERROR_DECLARE; |
302 | 308 | ||
303 | eth_device_ref device; |
309 | eth_device_ref device; |
304 | int index; |
310 | int index; |
305 | measured_string_t names[ 2 ] = {{ "ETH_MODE", 8 }, { "ETH_DUMMY", 9 }}; |
311 | measured_string_t names[ 2 ] = {{ "ETH_MODE", 8 }, { "ETH_DUMMY", 9 }}; |
306 | measured_string_ref configuration; |
312 | measured_string_ref configuration; |
307 | size_t count = sizeof( names ) / sizeof( measured_string_t ); |
313 | size_t count = sizeof( names ) / sizeof( measured_string_t ); |
308 | char * data; |
314 | char * data; |
309 | eth_proto_ref proto; |
315 | eth_proto_ref proto; |
310 | 316 | ||
311 | fibril_rwlock_write_lock( & eth_globals.devices_lock ); |
317 | fibril_rwlock_write_lock( & eth_globals.devices_lock ); |
312 | // an existing device? |
318 | // an existing device? |
313 | device = eth_devices_find( & eth_globals.devices, device_id ); |
319 | device = eth_devices_find( & eth_globals.devices, device_id ); |
314 | if( device ){ |
320 | if( device ){ |
315 | if( device->service != service ){ |
321 | if( device->service != service ){ |
316 | printf( "Device %d already exists\n", device->device_id ); |
322 | printf( "Device %d already exists\n", device->device_id ); |
317 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
323 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
318 | return EEXIST; |
324 | return EEXIST; |
319 | }else{ |
325 | }else{ |
320 | // update mtu |
326 | // update mtu |
321 | device->mtu = mtu; |
327 | device->mtu = mtu; |
322 | printf( "Device %d already exists:\tMTU\t= %d\n", device->device_id, device->mtu ); |
328 | printf( "Device %d already exists:\tMTU\t= %d\n", device->device_id, device->mtu ); |
323 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
329 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
324 | // notify all upper layer modules |
330 | // notify all upper layer modules |
325 | fibril_rwlock_read_lock( & eth_globals.protos_lock ); |
331 | fibril_rwlock_read_lock( & eth_globals.protos_lock ); |
326 | for( index = 0; index < eth_protos_count( & eth_globals.protos ); ++ index ){ |
332 | for( index = 0; index < eth_protos_count( & eth_globals.protos ); ++ index ){ |
327 | proto = eth_protos_get_index( & eth_globals.protos, index ); |
333 | proto = eth_protos_get_index( & eth_globals.protos, index ); |
328 | if ( proto->phone ){ |
334 | if ( proto->phone ){ |
329 | il_mtu_changed_msg( proto->phone, device->device_id, device->mtu, proto->service ); |
335 | il_mtu_changed_msg( proto->phone, device->device_id, device->mtu, proto->service ); |
330 | } |
336 | } |
331 | } |
337 | } |
332 | fibril_rwlock_read_unlock( & eth_globals.protos_lock ); |
338 | fibril_rwlock_read_unlock( & eth_globals.protos_lock ); |
333 | return EOK; |
339 | return EOK; |
334 | } |
340 | } |
335 | }else{ |
341 | }else{ |
336 | // create a new device |
342 | // create a new device |
337 | device = ( eth_device_ref ) malloc( sizeof( eth_device_t )); |
343 | device = ( eth_device_ref ) malloc( sizeof( eth_device_t )); |
338 | if( ! device ) return ENOMEM; |
344 | if( ! device ) return ENOMEM; |
339 | device->device_id = device_id; |
345 | device->device_id = device_id; |
340 | device->service = service; |
346 | device->service = service; |
341 | device->flags = 0; |
347 | device->flags = 0; |
342 | device->mtu = (( mtu > 0 ) && ( mtu <= ETH_MAX_TAGGED_CONTENT( device->flags ))) ? mtu : ETH_MAX_TAGGED_CONTENT( device->flags ); |
348 | device->mtu = (( mtu > 0 ) && ( mtu <= ETH_MAX_TAGGED_CONTENT( device->flags ))) ? mtu : ETH_MAX_TAGGED_CONTENT( device->flags ); |
343 | configuration = & names[ 0 ]; |
349 | configuration = & names[ 0 ]; |
344 | if( ERROR_OCCURRED( net_get_device_conf_req( eth_globals.net_phone, device->device_id, & configuration, count, & data ))){ |
350 | if( ERROR_OCCURRED( net_get_device_conf_req( eth_globals.net_phone, device->device_id, & configuration, count, & data ))){ |
345 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
351 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
346 | free( device ); |
352 | free( device ); |
347 | return ERROR_CODE; |
353 | return ERROR_CODE; |
348 | } |
354 | } |
349 | if( configuration ){ |
355 | if( configuration ){ |
350 | if( ! str_lcmp( configuration[ 0 ].value, "DIX", configuration[ 0 ].length )){ |
356 | if( ! str_lcmp( configuration[ 0 ].value, "DIX", configuration[ 0 ].length )){ |
351 | device->flags |= ETH_DIX; |
357 | device->flags |= ETH_DIX; |
352 | }else if( ! str_lcmp( configuration[ 0 ].value, "8023_2_LSAP", configuration[ 0 ].length )){ |
358 | }else if( ! str_lcmp( configuration[ 0 ].value, "8023_2_LSAP", configuration[ 0 ].length )){ |
353 | // TODO 8023_2_LSAP |
359 | // TODO 8023_2_LSAP |
354 | printf( "8023_2_LSAP is not supported (yet?), DIX used instead\n" ); |
360 | printf( "8023_2_LSAP is not supported (yet?), DIX used instead\n" ); |
355 | device->flags |= ETH_DIX; |
361 | device->flags |= ETH_DIX; |
356 | }else device->flags |= ETH_8023_2_SNAP; |
362 | }else device->flags |= ETH_8023_2_SNAP; |
357 | if(( configuration[ 1 ].value ) && ( configuration[ 1 ].value[ 0 ] == 'y' )){ |
363 | if(( configuration[ 1 ].value ) && ( configuration[ 1 ].value[ 0 ] == 'y' )){ |
358 | device->flags |= ETH_DUMMY; |
364 | device->flags |= ETH_DUMMY; |
359 | } |
365 | } |
360 | net_free_settings( configuration, data ); |
366 | net_free_settings( configuration, data ); |
361 | }else{ |
367 | }else{ |
362 | device->flags |= ETH_8023_2_SNAP; |
368 | device->flags |= ETH_8023_2_SNAP; |
363 | } |
369 | } |
364 | // bind the device driver |
370 | // bind the device driver |
365 | device->phone = netif_bind_service( device->service, device->device_id, SERVICE_ETHERNET, eth_receiver ); |
371 | device->phone = netif_bind_service( device->service, device->device_id, SERVICE_ETHERNET, eth_receiver ); |
366 | if( device->phone < 0 ){ |
372 | if( device->phone < 0 ){ |
367 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
373 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
368 | free( device ); |
374 | free( device ); |
369 | return device->phone; |
375 | return device->phone; |
370 | } |
376 | } |
371 | // get hardware address |
377 | // get hardware address |
372 | if( ERROR_OCCURRED( netif_get_addr( device->phone, device->device_id, & device->addr, & device->addr_data ))){ |
378 | if( ERROR_OCCURRED( netif_get_addr( device->phone, device->device_id, & device->addr, & device->addr_data ))){ |
373 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
379 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
374 | free( device ); |
380 | free( device ); |
375 | return ERROR_CODE; |
381 | return ERROR_CODE; |
376 | } |
382 | } |
377 | // add to the cache |
383 | // add to the cache |
378 | index = eth_devices_add( & eth_globals.devices, device->device_id, device ); |
384 | index = eth_devices_add( & eth_globals.devices, device->device_id, device ); |
379 | if( index < 0 ){ |
385 | if( index < 0 ){ |
380 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
386 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
381 | free( device->addr ); |
387 | free( device->addr ); |
382 | free( device->addr_data ); |
388 | free( device->addr_data ); |
383 | free( device ); |
389 | free( device ); |
384 | return index; |
390 | return index; |
385 | } |
391 | } |
386 | printf( "New device registered:\n\tid\t= %d\n\tservice\t= %d\n\tMTU\t= %d\n\taddress\t= %X:%X:%X:%X:%X:%X\n\tflags\t= 0x%x\n", device->device_id, device->service, device->mtu, device->addr_data[ 0 ], device->addr_data[ 1 ], device->addr_data[ 2 ], device->addr_data[ 3 ], device->addr_data[ 4 ], device->addr_data[ 5 ], device->flags ); |
392 | printf( "New device registered:\n\tid\t= %d\n\tservice\t= %d\n\tMTU\t= %d\n\taddress\t= %X:%X:%X:%X:%X:%X\n\tflags\t= 0x%x\n", device->device_id, device->service, device->mtu, device->addr_data[ 0 ], device->addr_data[ 1 ], device->addr_data[ 2 ], device->addr_data[ 3 ], device->addr_data[ 4 ], device->addr_data[ 5 ], device->flags ); |
387 | } |
393 | } |
388 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
394 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
389 | return EOK; |
395 | return EOK; |
390 | } |
396 | } |
391 | 397 | ||
392 | eth_proto_ref eth_process_packet( int flags, packet_t packet ){ |
398 | eth_proto_ref eth_process_packet( int flags, packet_t packet ){ |
393 | ERROR_DECLARE; |
399 | ERROR_DECLARE; |
394 | 400 | ||
395 | eth_header_ex_ref header; |
401 | eth_header_ex_ref header; |
396 | size_t length; |
402 | size_t length; |
397 | eth_type_t type; |
403 | eth_type_t type; |
398 | size_t prefix; |
404 | size_t prefix; |
399 | size_t suffix; |
405 | size_t suffix; |
400 | eth_fcs_ref fcs; |
406 | eth_fcs_ref fcs; |
401 | uint8_t * data; |
407 | uint8_t * data; |
402 | 408 | ||
403 | length = packet_get_data_length( packet ); |
409 | length = packet_get_data_length( packet ); |
404 | if( IS_DUMMY( flags )){ |
410 | if( IS_DUMMY( flags )){ |
405 | packet_trim( packet, sizeof( eth_preamble_t ), 0 ); |
411 | packet_trim( packet, sizeof( eth_preamble_t ), 0 ); |
406 | } |
412 | } |
407 | if( length < sizeof( eth_header_t ) + ETH_MIN_CONTENT + ( IS_DUMMY( flags ) ? ETH_SUFFIX : 0 )) return NULL; |
413 | if( length < sizeof( eth_header_t ) + ETH_MIN_CONTENT + ( IS_DUMMY( flags ) ? ETH_SUFFIX : 0 )) return NULL; |
408 | data = packet_get_data( packet ); |
414 | data = packet_get_data( packet ); |
409 | header = ( eth_header_ex_ref ) data; |
415 | header = ( eth_header_ex_ref ) data; |
410 | type = ntohs( header->header.ethertype ); |
416 | type = ntohs( header->header.ethertype ); |
411 | if( type >= ETH_MIN_PROTO ){ |
417 | if( type >= ETH_MIN_PROTO ){ |
412 | // DIX Ethernet |
418 | // DIX Ethernet |
413 | prefix = sizeof( eth_header_t ); |
419 | prefix = sizeof( eth_header_t ); |
414 | suffix = 0; |
420 | suffix = 0; |
415 | fcs = ( eth_fcs_ref ) data + length - sizeof( eth_fcs_t ); |
421 | fcs = ( eth_fcs_ref ) data + length - sizeof( eth_fcs_t ); |
416 | length -= sizeof( eth_fcs_t ); |
422 | length -= sizeof( eth_fcs_t ); |
417 | }else if( type <= ETH_MAX_CONTENT ){ |
423 | }else if( type <= ETH_MAX_CONTENT ){ |
418 | // translate "LSAP" values |
424 | // translate "LSAP" values |
419 | if(( header->lsap.dsap == ETH_LSAP_GLSAP ) && ( header->lsap.ssap == ETH_LSAP_GLSAP )){ |
425 | if(( header->lsap.dsap == ETH_LSAP_GLSAP ) && ( header->lsap.ssap == ETH_LSAP_GLSAP )){ |
420 | // raw packet |
426 | // raw packet |
421 | // discard |
427 | // discard |
422 | return NULL; |
428 | return NULL; |
423 | }else if(( header->lsap.dsap == ETH_LSAP_SNAP ) && ( header->lsap.ssap == ETH_LSAP_SNAP )){ |
429 | }else if(( header->lsap.dsap == ETH_LSAP_SNAP ) && ( header->lsap.ssap == ETH_LSAP_SNAP )){ |
424 | // IEEE 802.3 + 802.2 + LSAP + SNAP |
430 | // IEEE 802.3 + 802.2 + LSAP + SNAP |
425 | // organization code not supported |
431 | // organization code not supported |
426 | type = ntohs( header->snap.ethertype ); |
432 | type = ntohs( header->snap.ethertype ); |
427 | prefix = sizeof( eth_header_t ) + sizeof( eth_header_lsap_t ) + sizeof( eth_header_snap_t ); |
433 | prefix = sizeof( eth_header_t ) + sizeof( eth_header_lsap_t ) + sizeof( eth_header_snap_t ); |
428 | }else{ |
434 | }else{ |
429 | // IEEE 802.3 + 802.2 LSAP |
435 | // IEEE 802.3 + 802.2 LSAP |
430 | type = lsap_map( header->lsap.dsap ); |
436 | type = lsap_map( header->lsap.dsap ); |
431 | prefix = sizeof( eth_header_t ) + sizeof( eth_header_lsap_t); |
437 | prefix = sizeof( eth_header_t ) + sizeof( eth_header_lsap_t); |
432 | } |
438 | } |
433 | suffix = ( type < ETH_MIN_CONTENT ) ? ETH_MIN_CONTENT - type : 0u; |
439 | suffix = ( type < ETH_MIN_CONTENT ) ? ETH_MIN_CONTENT - type : 0u; |
434 | fcs = ( eth_fcs_ref ) data + prefix + type + suffix; |
440 | fcs = ( eth_fcs_ref ) data + prefix + type + suffix; |
435 | suffix += length - prefix - type; |
441 | suffix += length - prefix - type; |
436 | length = prefix + type + suffix; |
442 | length = prefix + type + suffix; |
437 | }else{ |
443 | }else{ |
438 | // invalid length/type, should not occurr |
444 | // invalid length/type, should not occurr |
439 | return NULL; |
445 | return NULL; |
440 | } |
446 | } |
441 | if( IS_DUMMY( flags )){ |
447 | if( IS_DUMMY( flags )){ |
442 | if(( ~ compute_crc32( ~ 0u, data, length * 8 )) != ntohl( * fcs )){ |
448 | if(( ~ compute_crc32( ~ 0u, data, length * 8 )) != ntohl( * fcs )){ |
443 | return NULL; |
449 | return NULL; |
444 | } |
450 | } |
445 | suffix += sizeof( eth_fcs_t ); |
451 | suffix += sizeof( eth_fcs_t ); |
446 | } |
452 | } |
447 | if( ERROR_OCCURRED( packet_set_addr( packet, header->header.src, header->header.dest, ETH_ADDR )) |
453 | if( ERROR_OCCURRED( packet_set_addr( packet, header->header.src, header->header.dest, ETH_ADDR )) |
448 | || ERROR_OCCURRED( packet_trim( packet, prefix, suffix ))){ |
454 | || ERROR_OCCURRED( packet_trim( packet, prefix, suffix ))){ |
449 | return NULL; |
455 | return NULL; |
450 | } |
456 | } |
451 | return eth_protos_find( & eth_globals.protos, type ); |
457 | return eth_protos_find( & eth_globals.protos, type ); |
452 | } |
458 | } |
453 | 459 | ||
454 | int nil_received_msg( int nil_phone, device_id_t device_id, packet_t packet, services_t target ){ |
460 | int nil_received_msg( int nil_phone, device_id_t device_id, packet_t packet, services_t target ){ |
455 | eth_proto_ref proto; |
461 | eth_proto_ref proto; |
456 | packet_t next; |
462 | packet_t next; |
457 | eth_device_ref device; |
463 | eth_device_ref device; |
458 | int flags; |
464 | int flags; |
459 | 465 | ||
460 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
466 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
461 | device = eth_devices_find( & eth_globals.devices, device_id ); |
467 | device = eth_devices_find( & eth_globals.devices, device_id ); |
462 | if( ! device ){ |
468 | if( ! device ){ |
463 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
469 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
464 | return ENOENT; |
470 | return ENOENT; |
465 | } |
471 | } |
466 | flags = device->flags; |
472 | flags = device->flags; |
467 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
473 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
468 | fibril_rwlock_read_lock( & eth_globals.protos_lock ); |
474 | fibril_rwlock_read_lock( & eth_globals.protos_lock ); |
469 | do{ |
475 | do{ |
470 | next = pq_detach( packet ); |
476 | next = pq_detach( packet ); |
471 | proto = eth_process_packet( flags, packet ); |
477 | proto = eth_process_packet( flags, packet ); |
472 | if( proto ){ |
478 | if( proto ){ |
473 | il_received_msg( proto->phone, device_id, packet, proto->service ); |
479 | il_received_msg( proto->phone, device_id, packet, proto->service ); |
474 | }else{ |
480 | }else{ |
475 | // drop invalid/unknown |
481 | // drop invalid/unknown |
476 | pq_release( eth_globals.net_phone, packet_get_id( packet )); |
482 | pq_release( eth_globals.net_phone, packet_get_id( packet )); |
477 | } |
483 | } |
478 | packet = next; |
484 | packet = next; |
479 | }while( packet ); |
485 | }while( packet ); |
480 | fibril_rwlock_read_unlock( & eth_globals.protos_lock ); |
486 | fibril_rwlock_read_unlock( & eth_globals.protos_lock ); |
481 | return EOK; |
487 | return EOK; |
482 | } |
488 | } |
483 | 489 | ||
484 | int eth_packet_space_message( device_id_t device_id, size_t * addr_len, size_t * prefix, size_t * content, size_t * suffix ){ |
490 | int eth_packet_space_message( device_id_t device_id, size_t * addr_len, size_t * prefix, size_t * content, size_t * suffix ){ |
485 | eth_device_ref device; |
491 | eth_device_ref device; |
486 | 492 | ||
487 | if( !( addr_len && prefix && content && suffix )) return EBADMEM; |
493 | if( !( addr_len && prefix && content && suffix )) return EBADMEM; |
488 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
494 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
489 | device = eth_devices_find( & eth_globals.devices, device_id ); |
495 | device = eth_devices_find( & eth_globals.devices, device_id ); |
490 | if( ! device ){ |
496 | if( ! device ){ |
491 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
497 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
492 | return ENOENT; |
498 | return ENOENT; |
493 | } |
499 | } |
494 | * content = device->mtu; |
500 | * content = device->mtu; |
495 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
501 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
496 | * addr_len = ETH_ADDR; |
502 | * addr_len = ETH_ADDR; |
497 | * prefix = ETH_PREFIX; |
503 | * prefix = ETH_PREFIX; |
498 | * suffix = ETH_MIN_CONTENT + ETH_SUFFIX; |
504 | * suffix = ETH_MIN_CONTENT + ETH_SUFFIX; |
499 | return EOK; |
505 | return EOK; |
500 | } |
506 | } |
501 | 507 | ||
502 | int eth_addr_message( device_id_t device_id, eth_addr_type_t type, measured_string_ref * address ){ |
508 | int eth_addr_message( device_id_t device_id, eth_addr_type_t type, measured_string_ref * address ){ |
503 | eth_device_ref device; |
509 | eth_device_ref device; |
504 | 510 | ||
505 | if( ! address ) return EBADMEM; |
511 | if( ! address ) return EBADMEM; |
506 | if( type == ETH_BROADCAST_ADDR ){ |
512 | if( type == ETH_BROADCAST_ADDR ){ |
507 | * address = eth_globals.broadcast_addr; |
513 | * address = eth_globals.broadcast_addr; |
508 | }else{ |
514 | }else{ |
509 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
515 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
510 | device = eth_devices_find( & eth_globals.devices, device_id ); |
516 | device = eth_devices_find( & eth_globals.devices, device_id ); |
511 | if( ! device ){ |
517 | if( ! device ){ |
512 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
518 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
513 | return ENOENT; |
519 | return ENOENT; |
514 | } |
520 | } |
515 | * address = device->addr; |
521 | * address = device->addr; |
516 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
522 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
517 | } |
523 | } |
518 | return ( * address ) ? EOK : ENOENT; |
524 | return ( * address ) ? EOK : ENOENT; |
519 | } |
525 | } |
520 | 526 | ||
521 | int eth_register_message( services_t service, int phone ){ |
527 | int eth_register_message( services_t service, int phone ){ |
522 | eth_proto_ref proto; |
528 | eth_proto_ref proto; |
523 | int protocol; |
529 | int protocol; |
524 | int index; |
530 | int index; |
525 | 531 | ||
526 | protocol = protocol_map( SERVICE_ETHERNET, service ); |
532 | protocol = protocol_map( SERVICE_ETHERNET, service ); |
527 | if( ! protocol ) return ENOENT; |
533 | if( ! protocol ) return ENOENT; |
528 | fibril_rwlock_write_lock( & eth_globals.protos_lock ); |
534 | fibril_rwlock_write_lock( & eth_globals.protos_lock ); |
529 | proto = eth_protos_find( & eth_globals.protos, protocol ); |
535 | proto = eth_protos_find( & eth_globals.protos, protocol ); |
530 | if( proto ){ |
536 | if( proto ){ |
531 | proto->phone = phone; |
537 | proto->phone = phone; |
532 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
538 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
533 | return EOK; |
539 | return EOK; |
534 | }else{ |
540 | }else{ |
535 | proto = ( eth_proto_ref ) malloc( sizeof( eth_proto_t )); |
541 | proto = ( eth_proto_ref ) malloc( sizeof( eth_proto_t )); |
536 | if( ! proto ){ |
542 | if( ! proto ){ |
537 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
543 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
538 | return ENOMEM; |
544 | return ENOMEM; |
539 | } |
545 | } |
540 | proto->service = service; |
546 | proto->service = service; |
541 | proto->protocol = protocol; |
547 | proto->protocol = protocol; |
542 | proto->phone = phone; |
548 | proto->phone = phone; |
543 | index = eth_protos_add( & eth_globals.protos, protocol, proto ); |
549 | index = eth_protos_add( & eth_globals.protos, protocol, proto ); |
544 | if( index < 0 ){ |
550 | if( index < 0 ){ |
545 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
551 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
546 | free( proto ); |
552 | free( proto ); |
547 | return index; |
553 | return index; |
548 | } |
554 | } |
549 | } |
555 | } |
550 | printf( "New protocol registered:\n\tprotocol\t= 0x%x\n\tservice\t= %d\n\tphone\t= %d\n", proto->protocol, proto->service, proto->phone ); |
556 | printf( "New protocol registered:\n\tprotocol\t= 0x%x\n\tservice\t= %d\n\tphone\t= %d\n", proto->protocol, proto->service, proto->phone ); |
551 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
557 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
552 | return EOK; |
558 | return EOK; |
553 | } |
559 | } |
554 | 560 | ||
555 | int eth_prepare_packet( int flags, packet_t packet, uint8_t * src_addr, int ethertype, size_t mtu ){ |
561 | int eth_prepare_packet( int flags, packet_t packet, uint8_t * src_addr, int ethertype, size_t mtu ){ |
556 | eth_header_ex_ref header; |
562 | eth_header_ex_ref header; |
557 | eth_header_ref header_dix; |
563 | eth_header_ref header_dix; |
558 | eth_fcs_ref fcs; |
564 | eth_fcs_ref fcs; |
559 | uint8_t * src; |
565 | uint8_t * src; |
560 | uint8_t * dest; |
566 | uint8_t * dest; |
561 | size_t length; |
567 | size_t length; |
562 | int i; |
568 | int i; |
563 | void * padding; |
569 | void * padding; |
564 | eth_preamble_ref preamble; |
570 | eth_preamble_ref preamble; |
565 | 571 | ||
566 | i = packet_get_addr( packet, & src, & dest ); |
572 | i = packet_get_addr( packet, & src, & dest ); |
567 | if( i < 0 ) return i; |
573 | if( i < 0 ) return i; |
568 | if( i != ETH_ADDR ) return EINVAL; |
574 | if( i != ETH_ADDR ) return EINVAL; |
569 | length = packet_get_data_length( packet ); |
575 | length = packet_get_data_length( packet ); |
570 | if( length > mtu ) return EINVAL; |
576 | if( length > mtu ) return EINVAL; |
571 | if( length < ETH_MIN_TAGGED_CONTENT( flags )){ |
577 | if( length < ETH_MIN_TAGGED_CONTENT( flags )){ |
572 | padding = packet_suffix( packet, ETH_MIN_TAGGED_CONTENT( flags ) - length ); |
578 | padding = packet_suffix( packet, ETH_MIN_TAGGED_CONTENT( flags ) - length ); |
573 | if( ! padding ) return ENOMEM; |
579 | if( ! padding ) return ENOMEM; |
574 | bzero( padding, ETH_MIN_TAGGED_CONTENT( flags ) - length ); |
580 | bzero( padding, ETH_MIN_TAGGED_CONTENT( flags ) - length ); |
575 | } |
581 | } |
576 | if( IS_DUMMY( flags )){ |
582 | if( IS_DUMMY( flags )){ |
577 | preamble = PACKET_PREFIX( packet, eth_preamble_t ); |
583 | preamble = PACKET_PREFIX( packet, eth_preamble_t ); |
578 | if( ! preamble ) return ENOMEM; |
584 | if( ! preamble ) return ENOMEM; |
579 | for( i = 0; i < 7; ++ i ) preamble->preamble[ i ] = ETH_PREAMBLE; |
585 | for( i = 0; i < 7; ++ i ) preamble->preamble[ i ] = ETH_PREAMBLE; |
580 | preamble->sfd = ETH_SFD; |
586 | preamble->sfd = ETH_SFD; |
581 | } |
587 | } |
582 | // TODO LSAP only device |
588 | // TODO LSAP only device |
583 | if( IS_DIX( flags ) || IS_8023_2_LSAP( flags )){ |
589 | if( IS_DIX( flags ) || IS_8023_2_LSAP( flags )){ |
584 | header_dix = PACKET_PREFIX( packet, eth_header_t ); |
590 | header_dix = PACKET_PREFIX( packet, eth_header_t ); |
585 | if( ! header_dix ) return ENOMEM; |
591 | if( ! header_dix ) return ENOMEM; |
586 | header_dix->ethertype = ( uint16_t ) ethertype; |
592 | header_dix->ethertype = ( uint16_t ) ethertype; |
587 | memcpy( header_dix->src, src_addr, ETH_ADDR ); |
593 | memcpy( header_dix->src, src_addr, ETH_ADDR ); |
588 | memcpy( header_dix->dest, dest, ETH_ADDR ); |
594 | memcpy( header_dix->dest, dest, ETH_ADDR ); |
589 | src = & header_dix->dest[ 0 ]; |
595 | src = & header_dix->dest[ 0 ]; |
590 | }else if( IS_8023_2_SNAP( flags )){ |
596 | }else if( IS_8023_2_SNAP( flags )){ |
591 | header = PACKET_PREFIX( packet, eth_header_ex_t ); |
597 | header = PACKET_PREFIX( packet, eth_header_ex_t ); |
592 | if( ! header ) return ENOMEM; |
598 | if( ! header ) return ENOMEM; |
593 | header->header.ethertype = htons( length + sizeof( eth_header_lsap_t ) + sizeof( eth_header_snap_t )); |
599 | header->header.ethertype = htons( length + sizeof( eth_header_lsap_t ) + sizeof( eth_header_snap_t )); |
594 | header->lsap.dsap = ( uint16_t ) ETH_LSAP_SNAP; |
600 | header->lsap.dsap = ( uint16_t ) ETH_LSAP_SNAP; |
595 | header->lsap.ssap = header->lsap.dsap; |
601 | header->lsap.ssap = header->lsap.dsap; |
596 | header->lsap.ctrl = 0; |
602 | header->lsap.ctrl = 0; |
597 | for( i = 0; i < 3; ++ i ) header->snap.proto[ i ] = 0; |
603 | for( i = 0; i < 3; ++ i ) header->snap.proto[ i ] = 0; |
598 | header->snap.ethertype = ( uint16_t ) ethertype; |
604 | header->snap.ethertype = ( uint16_t ) ethertype; |
599 | memcpy( header->header.src, src_addr, ETH_ADDR ); |
605 | memcpy( header->header.src, src_addr, ETH_ADDR ); |
600 | memcpy( header->header.dest, dest, ETH_ADDR ); |
606 | memcpy( header->header.dest, dest, ETH_ADDR ); |
601 | src = & header->header.dest[ 0 ]; |
607 | src = & header->header.dest[ 0 ]; |
602 | } |
608 | } |
603 | if( IS_DUMMY( flags )){ |
609 | if( IS_DUMMY( flags )){ |
604 | fcs = PACKET_SUFFIX( packet, eth_fcs_t ); |
610 | fcs = PACKET_SUFFIX( packet, eth_fcs_t ); |
605 | if( ! fcs ) return ENOMEM; |
611 | if( ! fcs ) return ENOMEM; |
606 | * fcs = htonl( ~ compute_crc32( ~ 0u, src, length * 8 )); |
612 | * fcs = htonl( ~ compute_crc32( ~ 0u, src, length * 8 )); |
607 | } |
613 | } |
608 | return EOK; |
614 | return EOK; |
609 | } |
615 | } |
610 | 616 | ||
611 | int eth_send_message( device_id_t device_id, packet_t packet, services_t sender ){ |
617 | int eth_send_message( device_id_t device_id, packet_t packet, services_t sender ){ |
612 | ERROR_DECLARE; |
618 | ERROR_DECLARE; |
613 | 619 | ||
614 | eth_device_ref device; |
620 | eth_device_ref device; |
615 | packet_t next; |
621 | packet_t next; |
616 | packet_t tmp; |
622 | packet_t tmp; |
617 | int ethertype; |
623 | int ethertype; |
618 | 624 | ||
619 | ethertype = htons( protocol_map( SERVICE_ETHERNET, sender )); |
625 | ethertype = htons( protocol_map( SERVICE_ETHERNET, sender )); |
620 | if( ! ethertype ){ |
626 | if( ! ethertype ){ |
621 | pq_release( eth_globals.net_phone, packet_get_id( packet )); |
627 | pq_release( eth_globals.net_phone, packet_get_id( packet )); |
622 | return EINVAL; |
628 | return EINVAL; |
623 | } |
629 | } |
624 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
630 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
625 | device = eth_devices_find( & eth_globals.devices, device_id ); |
631 | device = eth_devices_find( & eth_globals.devices, device_id ); |
626 | if( ! device ){ |
632 | if( ! device ){ |
627 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
633 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
628 | return ENOENT; |
634 | return ENOENT; |
629 | } |
635 | } |
630 | // process packet queue |
636 | // process packet queue |
631 | next = packet; |
637 | next = packet; |
632 | do{ |
638 | do{ |
633 | if( ERROR_OCCURRED( eth_prepare_packet( device->flags, next, ( uint8_t * ) device->addr->value, ethertype, device->mtu ))){ |
639 | if( ERROR_OCCURRED( eth_prepare_packet( device->flags, next, ( uint8_t * ) device->addr->value, ethertype, device->mtu ))){ |
634 | // release invalid packet |
640 | // release invalid packet |
635 | tmp = pq_detach( next ); |
641 | tmp = pq_detach( next ); |
636 | if( next == packet ) packet = tmp; |
642 | if( next == packet ) packet = tmp; |
637 | pq_release( eth_globals.net_phone, packet_get_id( next )); |
643 | pq_release( eth_globals.net_phone, packet_get_id( next )); |
638 | next = tmp; |
644 | next = tmp; |
639 | }else{ |
645 | }else{ |
640 | next = pq_next( next ); |
646 | next = pq_next( next ); |
641 | } |
647 | } |
642 | }while( next ); |
648 | }while( next ); |
643 | // send packet queue |
649 | // send packet queue |
644 | if( packet ){ |
650 | if( packet ){ |
645 | netif_send_msg( device->phone, device_id, packet, SERVICE_ETHERNET ); |
651 | netif_send_msg( device->phone, device_id, packet, SERVICE_ETHERNET ); |
646 | } |
652 | } |
647 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
653 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
648 | return EOK; |
654 | return EOK; |
649 | } |
655 | } |
650 | 656 | ||
651 | int nil_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
657 | int nil_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
652 | ERROR_DECLARE; |
658 | ERROR_DECLARE; |
653 | 659 | ||
654 | measured_string_ref address; |
660 | measured_string_ref address; |
655 | packet_t packet; |
661 | packet_t packet; |
656 | 662 | ||
657 | // printf( "message %d - %d\n", IPC_GET_METHOD( * call ), NET_NIL_FIRST ); |
663 | // printf( "message %d - %d\n", IPC_GET_METHOD( * call ), NET_NIL_FIRST ); |
658 | * answer_count = 0; |
664 | * answer_count = 0; |
659 | switch( IPC_GET_METHOD( * call )){ |
665 | switch( IPC_GET_METHOD( * call )){ |
660 | case IPC_M_PHONE_HUNGUP: |
666 | case IPC_M_PHONE_HUNGUP: |
661 | return EOK; |
667 | return EOK; |
662 | case NET_NIL_DEVICE: |
668 | case NET_NIL_DEVICE: |
663 | return eth_device_message( IPC_GET_DEVICE( call ), IPC_GET_SERVICE( call ), IPC_GET_MTU( call )); |
669 | return eth_device_message( IPC_GET_DEVICE( call ), IPC_GET_SERVICE( call ), IPC_GET_MTU( call )); |
664 | case NET_NIL_SEND: |
670 | case NET_NIL_SEND: |
665 | ERROR_PROPAGATE( packet_translate( eth_globals.net_phone, & packet, IPC_GET_PACKET( call ))); |
671 | ERROR_PROPAGATE( packet_translate( eth_globals.net_phone, & packet, IPC_GET_PACKET( call ))); |
666 | return eth_send_message( IPC_GET_DEVICE( call ), packet, IPC_GET_SERVICE( call )); |
672 | return eth_send_message( IPC_GET_DEVICE( call ), packet, IPC_GET_SERVICE( call )); |
667 | case NET_NIL_PACKET_SPACE: |
673 | case NET_NIL_PACKET_SPACE: |
668 | ERROR_PROPAGATE( eth_packet_space_message( IPC_GET_DEVICE( call ), IPC_SET_ADDR( answer ), IPC_SET_PREFIX( answer ), IPC_SET_CONTENT( answer ), IPC_SET_SUFFIX( answer ))); |
674 | ERROR_PROPAGATE( eth_packet_space_message( IPC_GET_DEVICE( call ), IPC_SET_ADDR( answer ), IPC_SET_PREFIX( answer ), IPC_SET_CONTENT( answer ), IPC_SET_SUFFIX( answer ))); |
669 | * answer_count = 4; |
675 | * answer_count = 4; |
670 | return EOK; |
676 | return EOK; |
671 | case NET_NIL_ADDR: |
677 | case NET_NIL_ADDR: |
672 | ERROR_PROPAGATE( eth_addr_message( IPC_GET_DEVICE( call ), ETH_LOCAL_ADDR, & address )); |
678 | ERROR_PROPAGATE( eth_addr_message( IPC_GET_DEVICE( call ), ETH_LOCAL_ADDR, & address )); |
673 | return measured_strings_reply( address, 1 ); |
679 | return measured_strings_reply( address, 1 ); |
674 | case NET_NIL_BROADCAST_ADDR: |
680 | case NET_NIL_BROADCAST_ADDR: |
675 | ERROR_PROPAGATE( eth_addr_message( IPC_GET_DEVICE( call ), ETH_BROADCAST_ADDR, & address )); |
681 | ERROR_PROPAGATE( eth_addr_message( IPC_GET_DEVICE( call ), ETH_BROADCAST_ADDR, & address )); |
676 | return measured_strings_reply( address, 1 ); |
682 | return measured_strings_reply( address, 1 ); |
677 | case IPC_M_CONNECT_TO_ME: |
683 | case IPC_M_CONNECT_TO_ME: |
678 | return eth_register_message( NIL_GET_PROTO( call ), IPC_GET_PHONE( call )); |
684 | return eth_register_message( NIL_GET_PROTO( call ), IPC_GET_PHONE( call )); |
679 | } |
685 | } |
680 | return ENOTSUP; |
686 | return ENOTSUP; |
681 | } |
687 | } |
682 | 688 | ||
683 | void eth_receiver( ipc_callid_t iid, ipc_call_t * icall ){ |
689 | void eth_receiver( ipc_callid_t iid, ipc_call_t * icall ){ |
684 | ERROR_DECLARE; |
690 | ERROR_DECLARE; |
685 | 691 | ||
686 | packet_t packet; |
692 | packet_t packet; |
687 | 693 | ||
688 | while( true ){ |
694 | while( true ){ |
689 | // printf( "message %d - %d\n", IPC_GET_METHOD( * icall ), NET_NIL_FIRST ); |
695 | // printf( "message %d - %d\n", IPC_GET_METHOD( * icall ), NET_NIL_FIRST ); |
690 | switch( IPC_GET_METHOD( * icall )){ |
696 | switch( IPC_GET_METHOD( * icall )){ |
691 | case NET_NIL_DEVICE_STATE: |
697 | case NET_NIL_DEVICE_STATE: |
692 | nil_device_state_msg( 0, IPC_GET_DEVICE( icall ), IPC_GET_STATE( icall )); |
698 | nil_device_state_msg( 0, IPC_GET_DEVICE( icall ), IPC_GET_STATE( icall )); |
693 | ipc_answer_0( iid, EOK ); |
699 | ipc_answer_0( iid, EOK ); |
694 | break; |
700 | break; |
695 | case NET_NIL_RECEIVED: |
701 | case NET_NIL_RECEIVED: |
696 | if( ! ERROR_OCCURRED( packet_translate( eth_globals.net_phone, & packet, IPC_GET_PACKET( icall )))){ |
702 | if( ! ERROR_OCCURRED( packet_translate( eth_globals.net_phone, & packet, IPC_GET_PACKET( icall )))){ |
697 | ERROR_CODE = nil_received_msg( 0, IPC_GET_DEVICE( icall ), packet, 0 ); |
703 | ERROR_CODE = nil_received_msg( 0, IPC_GET_DEVICE( icall ), packet, 0 ); |
698 | } |
704 | } |
699 | ipc_answer_0( iid, ( ipcarg_t ) ERROR_CODE ); |
705 | ipc_answer_0( iid, ( ipcarg_t ) ERROR_CODE ); |
700 | break; |
706 | break; |
701 | default: |
707 | default: |
702 | ipc_answer_0( iid, ( ipcarg_t ) ENOTSUP ); |
708 | ipc_answer_0( iid, ( ipcarg_t ) ENOTSUP ); |
703 | } |
709 | } |
704 | iid = async_get_call( icall ); |
710 | iid = async_get_call( icall ); |
705 | } |
711 | } |
706 | } |
712 | } |
707 | 713 | ||
708 | /** @} |
714 | /** @} |
709 | */ |
715 | */ |
710 | 716 |