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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/checksum.h" |
52 | #include "../../include/checksum.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 1500u |
80 | #define ETH_MAX_CONTENT 1500u |
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[in] flags The ethernet flags. |
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[in] flags The ethernet flags. |
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[in] flags The ethernet flags. |
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 |
174 | /** @name Message processing functions |
175 | */ |
175 | */ |
176 | /*@{*/ |
176 | /*@{*/ |
177 | 177 | ||
178 | /** 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. |
179 | * @param iid The message identifier. Input parameter. |
179 | * @param[in] iid The message identifier. |
180 | * @param icall The message parameters. Input/output parameter. |
180 | * @param[in,out] icall The message parameters. |
181 | */ |
181 | */ |
182 | void eth_receiver( ipc_callid_t iid, ipc_call_t * icall ); |
182 | void eth_receiver( ipc_callid_t iid, ipc_call_t * icall ); |
183 | 183 | ||
184 | /** Registers new device or updates the MTU of an existing one. |
184 | /** Registers new device or updates the MTU of an existing one. |
185 | * Determines the device local hardware address. |
185 | * Determines the device local hardware address. |
186 | * @param device_id The new device identifier. Input parameter. |
186 | * @param[in] device_id The new device identifier. |
187 | * @param service The device driver service. Input parameter. |
187 | * @param[in] service The device driver service. |
188 | * @param mtu The device maximum transmission unit. Input parameter. |
188 | * @param[in] mtu The device maximum transmission unit. |
189 | * @returns EOK on success. |
189 | * @returns EOK on success. |
190 | * @returns EEXIST if the device with the different service exists. |
190 | * @returns EEXIST if the device with the different service exists. |
191 | * @returns ENOMEM if there is not enough memory left. |
191 | * @returns ENOMEM if there is not enough memory left. |
192 | * @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. |
193 | * @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. |
194 | * @returns Other error codes as defined for the netif_get_addr_req() function. |
194 | * @returns Other error codes as defined for the netif_get_addr_req() function. |
195 | */ |
195 | */ |
196 | 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 ); |
197 | 197 | ||
198 | /** Registers receiving module service. |
198 | /** Registers receiving module service. |
199 | * Passes received packets for this service. |
199 | * Passes received packets for this service. |
200 | * @param service The module service. Input parameter. |
200 | * @param[in] service The module service. |
201 | * @param phone The service phone. Input parameter. |
201 | * @param[in] phone The service phone. |
202 | * @returns EOK on success. |
202 | * @returns EOK on success. |
203 | * @returns ENOENT if the service is not known. |
203 | * @returns ENOENT if the service is not known. |
204 | * @returns ENOMEM if there is not enough memory left. |
204 | * @returns ENOMEM if there is not enough memory left. |
205 | */ |
205 | */ |
206 | int eth_register_message( services_t service, int phone ); |
206 | int eth_register_message( services_t service, int phone ); |
207 | 207 | ||
208 | /** Returns the device packet dimensions for sending. |
208 | /** Returns the device packet dimensions for sending. |
209 | * @param device_id The device identifier. Input parameter. |
209 | * @param[in] device_id The device identifier. |
210 | * @param addr_len The minimum reserved address length. Output parameter. |
210 | * @param[out] addr_len The minimum reserved address length. |
211 | * @param prefix The minimum reserved prefix size. Output parameter. |
211 | * @param[out] prefix The minimum reserved prefix size. |
212 | * @param content The maximum content size. Output parameter. |
212 | * @param[out] content The maximum content size. |
213 | * @param suffix The minimum reserved suffix size. Output parameter. |
213 | * @param[out] suffix The minimum reserved suffix size. |
214 | * @returns EOK on success. |
214 | * @returns EOK on success. |
215 | * @returns EBADMEM if either one of the parameters is NULL. |
215 | * @returns EBADMEM if either one of the parameters is NULL. |
216 | * @returns ENOENT if there is no such device. |
216 | * @returns ENOENT if there is no such device. |
217 | */ |
217 | */ |
218 | 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 ); |
219 | 219 | ||
220 | /** Returns the device hardware address. |
220 | /** Returns the device hardware address. |
221 | * @param device_id The device identifier. Input parameter. |
221 | * @param[in] device_id The device identifier. |
222 | * @param type Type of the desired address. Input parameter |
222 | * @param[in] type Type of the desired address. |
223 | * @param address The device hardware address. Output parameter. |
223 | * @param[out] address The device hardware address. |
224 | * @returns EOK on success. |
224 | * @returns EOK on success. |
225 | * @returns EBADMEM if the address parameter is NULL. |
225 | * @returns EBADMEM if the address parameter is NULL. |
226 | * @returns ENOENT if there no such device. |
226 | * @returns ENOENT if there no such device. |
227 | */ |
227 | */ |
228 | 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 ); |
229 | 229 | ||
230 | /** Sends the packet queue. |
230 | /** Sends the packet queue. |
231 | * Sends only packet successfully processed by the eth_prepare_packet() function. |
231 | * Sends only packet successfully processed by the eth_prepare_packet() function. |
232 | * @param device_id The device identifier. Input parameter. |
232 | * @param[in] device_id The device identifier. |
233 | * @param packet The packet queue. Input parameter. |
233 | * @param[in] packet The packet queue. |
234 | * @param sender The sending module service. Input parameter. |
234 | * @param[in] sender The sending module service. |
235 | * @returns EOK on success. |
235 | * @returns EOK on success. |
236 | * @returns ENOENT if there no such device. |
236 | * @returns ENOENT if there no such device. |
237 | * @returns EINVAL if the service parameter is not known. |
237 | * @returns EINVAL if the service parameter is not known. |
238 | */ |
238 | */ |
239 | 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 ); |
240 | 240 | ||
241 | /*@}*/ |
241 | /*@}*/ |
242 | 242 | ||
243 | /** Processes the received packet and chooses the target registered module. |
243 | /** Processes the received packet and chooses the target registered module. |
244 | * @param flags The device flags. Input parameter. |
244 | * @param[in] flags The device flags. |
245 | * @param packet The packet. Input parameter. |
245 | * @param[in] packet The packet. |
246 | * @returns The target registered module. |
246 | * @returns The target registered module. |
247 | * @returns NULL if the packet is not long enough. |
247 | * @returns NULL if the packet is not long enough. |
248 | * @returns NULL if the packet is too long. |
248 | * @returns NULL if the packet is too long. |
249 | * @returns NULL if the raw ethernet protocol is used. |
249 | * @returns NULL if the raw ethernet protocol is used. |
250 | * @returns NULL if the dummy device FCS checksum is invalid. |
250 | * @returns NULL if the dummy device FCS checksum is invalid. |
251 | * @returns NULL if the packet address length is not big enough. |
251 | * @returns NULL if the packet address length is not big enough. |
252 | */ |
252 | */ |
253 | eth_proto_ref eth_process_packet( int flags, packet_t packet ); |
253 | eth_proto_ref eth_process_packet( int flags, packet_t packet ); |
254 | 254 | ||
255 | /** Prepares the packet for sending. |
255 | /** Prepares the packet for sending. |
256 | * @param flags The device flags. Input parameter. |
256 | * @param[in] flags The device flags. |
257 | * @param packet The packet. Input parameter. |
257 | * @param[in] packet The packet. |
258 | * @param src_addr The source hardware address. Input parameter. |
258 | * @param[in] src_addr The source hardware address. |
259 | * @param ethertype The ethernet protocol type. Input parameter. |
259 | * @param[in] ethertype The ethernet protocol type. |
260 | * @param mtu The device maximum transmission unit. Input parameter. |
260 | * @param[in] mtu The device maximum transmission unit. |
261 | * @returns EOK on success. |
261 | * @returns EOK on success. |
262 | * @returns EINVAL if the packet addresses length is not long enough. |
262 | * @returns EINVAL if the packet addresses length is not long enough. |
263 | * @returns EINVAL if the packet is bigger than the device MTU. |
263 | * @returns EINVAL if the packet is bigger than the device MTU. |
264 | * @returns ENOMEM if there is not enough memory in the packet. |
264 | * @returns ENOMEM if there is not enough memory in the packet. |
265 | */ |
265 | */ |
266 | 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 ); |
267 | 267 | ||
268 | DEVICE_MAP_IMPLEMENT( eth_devices, eth_device_t ) |
268 | DEVICE_MAP_IMPLEMENT( eth_devices, eth_device_t ) |
269 | 269 | ||
270 | INT_MAP_IMPLEMENT( eth_protos, eth_proto_t ) |
270 | INT_MAP_IMPLEMENT( eth_protos, eth_proto_t ) |
271 | 271 | ||
272 | 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 ){ |
273 | int index; |
273 | int index; |
274 | eth_proto_ref proto; |
274 | eth_proto_ref proto; |
275 | 275 | ||
276 | fibril_rwlock_read_lock( & eth_globals.protos_lock ); |
276 | fibril_rwlock_read_lock( & eth_globals.protos_lock ); |
277 | for( index = eth_protos_count( & eth_globals.protos ) - 1; index >= 0; -- index ){ |
277 | for( index = eth_protos_count( & eth_globals.protos ) - 1; index >= 0; -- index ){ |
278 | proto = eth_protos_get_index( & eth_globals.protos, index ); |
278 | proto = eth_protos_get_index( & eth_globals.protos, index ); |
279 | if( proto && proto->phone ) il_device_state_msg( proto->phone, device_id, state, proto->service ); |
279 | if( proto && proto->phone ) il_device_state_msg( proto->phone, device_id, state, proto->service ); |
280 | } |
280 | } |
281 | fibril_rwlock_read_unlock( & eth_globals.protos_lock ); |
281 | fibril_rwlock_read_unlock( & eth_globals.protos_lock ); |
282 | return EOK; |
282 | return EOK; |
283 | } |
283 | } |
284 | 284 | ||
285 | int nil_initialize( int net_phone ){ |
285 | int nil_initialize( int net_phone ){ |
286 | ERROR_DECLARE; |
286 | ERROR_DECLARE; |
287 | 287 | ||
288 | fibril_rwlock_initialize( & eth_globals.devices_lock ); |
288 | fibril_rwlock_initialize( & eth_globals.devices_lock ); |
289 | fibril_rwlock_initialize( & eth_globals.protos_lock ); |
289 | fibril_rwlock_initialize( & eth_globals.protos_lock ); |
290 | fibril_rwlock_write_lock( & eth_globals.devices_lock ); |
290 | fibril_rwlock_write_lock( & eth_globals.devices_lock ); |
291 | fibril_rwlock_write_lock( & eth_globals.protos_lock ); |
291 | fibril_rwlock_write_lock( & eth_globals.protos_lock ); |
292 | eth_globals.net_phone = net_phone; |
292 | eth_globals.net_phone = net_phone; |
293 | eth_globals.broadcast_addr = measured_string_create_bulk( "\xFF\xFF\xFF\xFF\xFF\xFF", CONVERT_SIZE( uint8_t, char, ETH_ADDR )); |
293 | eth_globals.broadcast_addr = measured_string_create_bulk( "\xFF\xFF\xFF\xFF\xFF\xFF", CONVERT_SIZE( uint8_t, char, ETH_ADDR )); |
294 | if( ! eth_globals.broadcast_addr ) return ENOMEM; |
294 | if( ! eth_globals.broadcast_addr ) return ENOMEM; |
295 | ERROR_PROPAGATE( eth_devices_initialize( & eth_globals.devices )); |
295 | ERROR_PROPAGATE( eth_devices_initialize( & eth_globals.devices )); |
296 | if( ERROR_OCCURRED( eth_protos_initialize( & eth_globals.protos ))){ |
296 | if( ERROR_OCCURRED( eth_protos_initialize( & eth_globals.protos ))){ |
297 | eth_devices_destroy( & eth_globals.devices ); |
297 | eth_devices_destroy( & eth_globals.devices ); |
298 | return ERROR_CODE; |
298 | return ERROR_CODE; |
299 | } |
299 | } |
300 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
300 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
301 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
301 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
302 | return EOK; |
302 | return EOK; |
303 | } |
303 | } |
304 | 304 | ||
305 | int eth_device_message( device_id_t device_id, services_t service, size_t mtu ){ |
305 | int eth_device_message( device_id_t device_id, services_t service, size_t mtu ){ |
306 | ERROR_DECLARE; |
306 | ERROR_DECLARE; |
307 | 307 | ||
308 | eth_device_ref device; |
308 | eth_device_ref device; |
309 | int index; |
309 | int index; |
310 | measured_string_t names[ 2 ] = {{ "ETH_MODE", 8 }, { "ETH_DUMMY", 9 }}; |
310 | measured_string_t names[ 2 ] = {{ "ETH_MODE", 8 }, { "ETH_DUMMY", 9 }}; |
311 | measured_string_ref configuration; |
311 | measured_string_ref configuration; |
312 | size_t count = sizeof( names ) / sizeof( measured_string_t ); |
312 | size_t count = sizeof( names ) / sizeof( measured_string_t ); |
313 | char * data; |
313 | char * data; |
314 | eth_proto_ref proto; |
314 | eth_proto_ref proto; |
315 | 315 | ||
316 | fibril_rwlock_write_lock( & eth_globals.devices_lock ); |
316 | fibril_rwlock_write_lock( & eth_globals.devices_lock ); |
317 | // an existing device? |
317 | // an existing device? |
318 | device = eth_devices_find( & eth_globals.devices, device_id ); |
318 | device = eth_devices_find( & eth_globals.devices, device_id ); |
319 | if( device ){ |
319 | if( device ){ |
320 | if( device->service != service ){ |
320 | if( device->service != service ){ |
321 | printf( "Device %d already exists\n", device->device_id ); |
321 | printf( "Device %d already exists\n", device->device_id ); |
322 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
322 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
323 | return EEXIST; |
323 | return EEXIST; |
324 | }else{ |
324 | }else{ |
325 | // update mtu |
325 | // update mtu |
326 | if(( mtu > 0 ) && ( mtu <= ETH_MAX_TAGGED_CONTENT( device->flags ))){ |
326 | if(( mtu > 0 ) && ( mtu <= ETH_MAX_TAGGED_CONTENT( device->flags ))){ |
327 | device->mtu = mtu; |
327 | device->mtu = mtu; |
328 | }else{ |
328 | }else{ |
329 | device->mtu = ETH_MAX_TAGGED_CONTENT( device->flags ); |
329 | device->mtu = ETH_MAX_TAGGED_CONTENT( device->flags ); |
330 | } |
330 | } |
331 | printf( "Device %d already exists:\tMTU\t= %d\n", device->device_id, device->mtu ); |
331 | printf( "Device %d already exists:\tMTU\t= %d\n", device->device_id, device->mtu ); |
332 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
332 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
333 | // notify all upper layer modules |
333 | // notify all upper layer modules |
334 | fibril_rwlock_read_lock( & eth_globals.protos_lock ); |
334 | fibril_rwlock_read_lock( & eth_globals.protos_lock ); |
335 | for( index = 0; index < eth_protos_count( & eth_globals.protos ); ++ index ){ |
335 | for( index = 0; index < eth_protos_count( & eth_globals.protos ); ++ index ){ |
336 | proto = eth_protos_get_index( & eth_globals.protos, index ); |
336 | proto = eth_protos_get_index( & eth_globals.protos, index ); |
337 | if ( proto->phone ){ |
337 | if ( proto->phone ){ |
338 | il_mtu_changed_msg( proto->phone, device->device_id, device->mtu, proto->service ); |
338 | il_mtu_changed_msg( proto->phone, device->device_id, device->mtu, proto->service ); |
339 | } |
339 | } |
340 | } |
340 | } |
341 | fibril_rwlock_read_unlock( & eth_globals.protos_lock ); |
341 | fibril_rwlock_read_unlock( & eth_globals.protos_lock ); |
342 | return EOK; |
342 | return EOK; |
343 | } |
343 | } |
344 | }else{ |
344 | }else{ |
345 | // create a new device |
345 | // create a new device |
346 | device = ( eth_device_ref ) malloc( sizeof( eth_device_t )); |
346 | device = ( eth_device_ref ) malloc( sizeof( eth_device_t )); |
347 | if( ! device ) return ENOMEM; |
347 | if( ! device ) return ENOMEM; |
348 | device->device_id = device_id; |
348 | device->device_id = device_id; |
349 | device->service = service; |
349 | device->service = service; |
350 | device->flags = 0; |
350 | device->flags = 0; |
351 | if(( mtu > 0 ) && ( mtu <= ETH_MAX_TAGGED_CONTENT( device->flags ))){ |
351 | if(( mtu > 0 ) && ( mtu <= ETH_MAX_TAGGED_CONTENT( device->flags ))){ |
352 | device->mtu = mtu; |
352 | device->mtu = mtu; |
353 | }else{ |
353 | }else{ |
354 | device->mtu = ETH_MAX_TAGGED_CONTENT( device->flags ); |
354 | device->mtu = ETH_MAX_TAGGED_CONTENT( device->flags ); |
355 | } |
355 | } |
356 | configuration = & names[ 0 ]; |
356 | configuration = & names[ 0 ]; |
357 | if( ERROR_OCCURRED( net_get_device_conf_req( eth_globals.net_phone, device->device_id, & configuration, count, & data ))){ |
357 | if( ERROR_OCCURRED( net_get_device_conf_req( eth_globals.net_phone, device->device_id, & configuration, count, & data ))){ |
358 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
358 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
359 | free( device ); |
359 | free( device ); |
360 | return ERROR_CODE; |
360 | return ERROR_CODE; |
361 | } |
361 | } |
362 | if( configuration ){ |
362 | if( configuration ){ |
363 | if( ! str_lcmp( configuration[ 0 ].value, "DIX", configuration[ 0 ].length )){ |
363 | if( ! str_lcmp( configuration[ 0 ].value, "DIX", configuration[ 0 ].length )){ |
364 | device->flags |= ETH_DIX; |
364 | device->flags |= ETH_DIX; |
365 | }else if( ! str_lcmp( configuration[ 0 ].value, "8023_2_LSAP", configuration[ 0 ].length )){ |
365 | }else if( ! str_lcmp( configuration[ 0 ].value, "8023_2_LSAP", configuration[ 0 ].length )){ |
366 | device->flags |= ETH_8023_2_LSAP; |
366 | device->flags |= ETH_8023_2_LSAP; |
367 | }else device->flags |= ETH_8023_2_SNAP; |
367 | }else device->flags |= ETH_8023_2_SNAP; |
368 | if(( configuration[ 1 ].value ) && ( configuration[ 1 ].value[ 0 ] == 'y' )){ |
368 | if(( configuration[ 1 ].value ) && ( configuration[ 1 ].value[ 0 ] == 'y' )){ |
369 | device->flags |= ETH_DUMMY; |
369 | device->flags |= ETH_DUMMY; |
370 | } |
370 | } |
371 | net_free_settings( configuration, data ); |
371 | net_free_settings( configuration, data ); |
372 | }else{ |
372 | }else{ |
373 | device->flags |= ETH_8023_2_SNAP; |
373 | device->flags |= ETH_8023_2_SNAP; |
374 | } |
374 | } |
375 | // bind the device driver |
375 | // bind the device driver |
376 | device->phone = netif_bind_service( device->service, device->device_id, SERVICE_ETHERNET, eth_receiver ); |
376 | device->phone = netif_bind_service( device->service, device->device_id, SERVICE_ETHERNET, eth_receiver ); |
377 | if( device->phone < 0 ){ |
377 | if( device->phone < 0 ){ |
378 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
378 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
379 | free( device ); |
379 | free( device ); |
380 | return device->phone; |
380 | return device->phone; |
381 | } |
381 | } |
382 | // get hardware address |
382 | // get hardware address |
383 | if( ERROR_OCCURRED( netif_get_addr_req( device->phone, device->device_id, & device->addr, & device->addr_data ))){ |
383 | if( ERROR_OCCURRED( netif_get_addr_req( device->phone, device->device_id, & device->addr, & device->addr_data ))){ |
384 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
384 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
385 | free( device ); |
385 | free( device ); |
386 | return ERROR_CODE; |
386 | return ERROR_CODE; |
387 | } |
387 | } |
388 | // add to the cache |
388 | // add to the cache |
389 | index = eth_devices_add( & eth_globals.devices, device->device_id, device ); |
389 | index = eth_devices_add( & eth_globals.devices, device->device_id, device ); |
390 | if( index < 0 ){ |
390 | if( index < 0 ){ |
391 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
391 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
392 | free( device->addr ); |
392 | free( device->addr ); |
393 | free( device->addr_data ); |
393 | free( device->addr_data ); |
394 | free( device ); |
394 | free( device ); |
395 | return index; |
395 | return index; |
396 | } |
396 | } |
397 | 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 ); |
397 | 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 ); |
398 | } |
398 | } |
399 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
399 | fibril_rwlock_write_unlock( & eth_globals.devices_lock ); |
400 | return EOK; |
400 | return EOK; |
401 | } |
401 | } |
402 | 402 | ||
403 | eth_proto_ref eth_process_packet( int flags, packet_t packet ){ |
403 | eth_proto_ref eth_process_packet( int flags, packet_t packet ){ |
404 | ERROR_DECLARE; |
404 | ERROR_DECLARE; |
405 | 405 | ||
406 | eth_header_snap_ref header; |
406 | eth_header_snap_ref header; |
407 | size_t length; |
407 | size_t length; |
408 | eth_type_t type; |
408 | eth_type_t type; |
409 | size_t prefix; |
409 | size_t prefix; |
410 | size_t suffix; |
410 | size_t suffix; |
411 | eth_fcs_ref fcs; |
411 | eth_fcs_ref fcs; |
412 | uint8_t * data; |
412 | uint8_t * data; |
413 | 413 | ||
414 | length = packet_get_data_length( packet ); |
414 | length = packet_get_data_length( packet ); |
415 | if( IS_DUMMY( flags )){ |
415 | if( IS_DUMMY( flags )){ |
416 | packet_trim( packet, sizeof( eth_preamble_t ), 0 ); |
416 | packet_trim( packet, sizeof( eth_preamble_t ), 0 ); |
417 | } |
417 | } |
418 | if( length < sizeof( eth_header_t ) + ETH_MIN_CONTENT + ( IS_DUMMY( flags ) ? ETH_SUFFIX : 0 )) return NULL; |
418 | if( length < sizeof( eth_header_t ) + ETH_MIN_CONTENT + ( IS_DUMMY( flags ) ? ETH_SUFFIX : 0 )) return NULL; |
419 | data = packet_get_data( packet ); |
419 | data = packet_get_data( packet ); |
420 | header = ( eth_header_snap_ref ) data; |
420 | header = ( eth_header_snap_ref ) data; |
421 | type = ntohs( header->header.ethertype ); |
421 | type = ntohs( header->header.ethertype ); |
422 | if( type >= ETH_MIN_PROTO ){ |
422 | if( type >= ETH_MIN_PROTO ){ |
423 | // DIX Ethernet |
423 | // DIX Ethernet |
424 | prefix = sizeof( eth_header_t ); |
424 | prefix = sizeof( eth_header_t ); |
425 | suffix = 0; |
425 | suffix = 0; |
426 | fcs = ( eth_fcs_ref ) data + length - sizeof( eth_fcs_t ); |
426 | fcs = ( eth_fcs_ref ) data + length - sizeof( eth_fcs_t ); |
427 | length -= sizeof( eth_fcs_t ); |
427 | length -= sizeof( eth_fcs_t ); |
428 | }else if( type <= ETH_MAX_CONTENT ){ |
428 | }else if( type <= ETH_MAX_CONTENT ){ |
429 | // translate "LSAP" values |
429 | // translate "LSAP" values |
430 | if(( header->lsap.dsap == ETH_LSAP_GLSAP ) && ( header->lsap.ssap == ETH_LSAP_GLSAP )){ |
430 | if(( header->lsap.dsap == ETH_LSAP_GLSAP ) && ( header->lsap.ssap == ETH_LSAP_GLSAP )){ |
431 | // raw packet |
431 | // raw packet |
432 | // discard |
432 | // discard |
433 | return NULL; |
433 | return NULL; |
434 | }else if(( header->lsap.dsap == ETH_LSAP_SNAP ) && ( header->lsap.ssap == ETH_LSAP_SNAP )){ |
434 | }else if(( header->lsap.dsap == ETH_LSAP_SNAP ) && ( header->lsap.ssap == ETH_LSAP_SNAP )){ |
435 | // IEEE 802.3 + 802.2 + LSAP + SNAP |
435 | // IEEE 802.3 + 802.2 + LSAP + SNAP |
436 | // organization code not supported |
436 | // organization code not supported |
437 | type = ntohs( header->snap.ethertype ); |
437 | type = ntohs( header->snap.ethertype ); |
438 | prefix = sizeof( eth_header_t ) + sizeof( eth_header_lsap_t ) + sizeof( eth_header_snap_t ); |
438 | prefix = sizeof( eth_header_t ) + sizeof( eth_header_lsap_t ) + sizeof( eth_header_snap_t ); |
439 | }else{ |
439 | }else{ |
440 | // IEEE 802.3 + 802.2 LSAP |
440 | // IEEE 802.3 + 802.2 LSAP |
441 | type = lsap_map( header->lsap.dsap ); |
441 | type = lsap_map( header->lsap.dsap ); |
442 | prefix = sizeof( eth_header_t ) + sizeof( eth_header_lsap_t); |
442 | prefix = sizeof( eth_header_t ) + sizeof( eth_header_lsap_t); |
443 | } |
443 | } |
444 | suffix = ( type < ETH_MIN_CONTENT ) ? ETH_MIN_CONTENT - type : 0u; |
444 | suffix = ( type < ETH_MIN_CONTENT ) ? ETH_MIN_CONTENT - type : 0u; |
445 | fcs = ( eth_fcs_ref ) data + prefix + type + suffix; |
445 | fcs = ( eth_fcs_ref ) data + prefix + type + suffix; |
446 | suffix += length - prefix - type; |
446 | suffix += length - prefix - type; |
447 | length = prefix + type + suffix; |
447 | length = prefix + type + suffix; |
448 | }else{ |
448 | }else{ |
449 | // invalid length/type, should not occurr |
449 | // invalid length/type, should not occurr |
450 | return NULL; |
450 | return NULL; |
451 | } |
451 | } |
452 | if( IS_DUMMY( flags )){ |
452 | if( IS_DUMMY( flags )){ |
453 | if(( ~ compute_crc32( ~ 0u, data, length * 8 )) != ntohl( * fcs )){ |
453 | if(( ~ compute_crc32( ~ 0u, data, length * 8 )) != ntohl( * fcs )){ |
454 | return NULL; |
454 | return NULL; |
455 | } |
455 | } |
456 | suffix += sizeof( eth_fcs_t ); |
456 | suffix += sizeof( eth_fcs_t ); |
457 | } |
457 | } |
458 | if( ERROR_OCCURRED( packet_set_addr( packet, header->header.source_address, header->header.destination_address, ETH_ADDR )) |
458 | if( ERROR_OCCURRED( packet_set_addr( packet, header->header.source_address, header->header.destination_address, ETH_ADDR )) |
459 | || ERROR_OCCURRED( packet_trim( packet, prefix, suffix ))){ |
459 | || ERROR_OCCURRED( packet_trim( packet, prefix, suffix ))){ |
460 | return NULL; |
460 | return NULL; |
461 | } |
461 | } |
462 | return eth_protos_find( & eth_globals.protos, type ); |
462 | return eth_protos_find( & eth_globals.protos, type ); |
463 | } |
463 | } |
464 | 464 | ||
465 | int nil_received_msg( int nil_phone, device_id_t device_id, packet_t packet, services_t target ){ |
465 | int nil_received_msg( int nil_phone, device_id_t device_id, packet_t packet, services_t target ){ |
466 | eth_proto_ref proto; |
466 | eth_proto_ref proto; |
467 | packet_t next; |
467 | packet_t next; |
468 | eth_device_ref device; |
468 | eth_device_ref device; |
469 | int flags; |
469 | int flags; |
470 | 470 | ||
471 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
471 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
472 | device = eth_devices_find( & eth_globals.devices, device_id ); |
472 | device = eth_devices_find( & eth_globals.devices, device_id ); |
473 | if( ! device ){ |
473 | if( ! device ){ |
474 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
474 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
475 | return ENOENT; |
475 | return ENOENT; |
476 | } |
476 | } |
477 | flags = device->flags; |
477 | flags = device->flags; |
478 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
478 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
479 | fibril_rwlock_read_lock( & eth_globals.protos_lock ); |
479 | fibril_rwlock_read_lock( & eth_globals.protos_lock ); |
480 | do{ |
480 | do{ |
481 | next = pq_detach( packet ); |
481 | next = pq_detach( packet ); |
482 | proto = eth_process_packet( flags, packet ); |
482 | proto = eth_process_packet( flags, packet ); |
483 | if( proto ){ |
483 | if( proto ){ |
484 | il_received_msg( proto->phone, device_id, packet, proto->service ); |
484 | il_received_msg( proto->phone, device_id, packet, proto->service ); |
485 | }else{ |
485 | }else{ |
486 | // drop invalid/unknown |
486 | // drop invalid/unknown |
487 | pq_release( eth_globals.net_phone, packet_get_id( packet )); |
487 | pq_release( eth_globals.net_phone, packet_get_id( packet )); |
488 | } |
488 | } |
489 | packet = next; |
489 | packet = next; |
490 | }while( packet ); |
490 | }while( packet ); |
491 | fibril_rwlock_read_unlock( & eth_globals.protos_lock ); |
491 | fibril_rwlock_read_unlock( & eth_globals.protos_lock ); |
492 | return EOK; |
492 | return EOK; |
493 | } |
493 | } |
494 | 494 | ||
495 | int eth_packet_space_message( device_id_t device_id, size_t * addr_len, size_t * prefix, size_t * content, size_t * suffix ){ |
495 | int eth_packet_space_message( device_id_t device_id, size_t * addr_len, size_t * prefix, size_t * content, size_t * suffix ){ |
496 | eth_device_ref device; |
496 | eth_device_ref device; |
497 | 497 | ||
498 | if( !( addr_len && prefix && content && suffix )) return EBADMEM; |
498 | if( !( addr_len && prefix && content && suffix )) return EBADMEM; |
499 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
499 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
500 | device = eth_devices_find( & eth_globals.devices, device_id ); |
500 | device = eth_devices_find( & eth_globals.devices, device_id ); |
501 | if( ! device ){ |
501 | if( ! device ){ |
502 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
502 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
503 | return ENOENT; |
503 | return ENOENT; |
504 | } |
504 | } |
505 | * content = device->mtu; |
505 | * content = device->mtu; |
506 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
506 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
507 | * addr_len = ETH_ADDR; |
507 | * addr_len = ETH_ADDR; |
508 | * prefix = ETH_PREFIX; |
508 | * prefix = ETH_PREFIX; |
509 | * suffix = ETH_MIN_CONTENT + ETH_SUFFIX; |
509 | * suffix = ETH_MIN_CONTENT + ETH_SUFFIX; |
510 | return EOK; |
510 | return EOK; |
511 | } |
511 | } |
512 | 512 | ||
513 | int eth_addr_message( device_id_t device_id, eth_addr_type_t type, measured_string_ref * address ){ |
513 | int eth_addr_message( device_id_t device_id, eth_addr_type_t type, measured_string_ref * address ){ |
514 | eth_device_ref device; |
514 | eth_device_ref device; |
515 | 515 | ||
516 | if( ! address ) return EBADMEM; |
516 | if( ! address ) return EBADMEM; |
517 | if( type == ETH_BROADCAST_ADDR ){ |
517 | if( type == ETH_BROADCAST_ADDR ){ |
518 | * address = eth_globals.broadcast_addr; |
518 | * address = eth_globals.broadcast_addr; |
519 | }else{ |
519 | }else{ |
520 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
520 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
521 | device = eth_devices_find( & eth_globals.devices, device_id ); |
521 | device = eth_devices_find( & eth_globals.devices, device_id ); |
522 | if( ! device ){ |
522 | if( ! device ){ |
523 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
523 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
524 | return ENOENT; |
524 | return ENOENT; |
525 | } |
525 | } |
526 | * address = device->addr; |
526 | * address = device->addr; |
527 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
527 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
528 | } |
528 | } |
529 | return ( * address ) ? EOK : ENOENT; |
529 | return ( * address ) ? EOK : ENOENT; |
530 | } |
530 | } |
531 | 531 | ||
532 | int eth_register_message( services_t service, int phone ){ |
532 | int eth_register_message( services_t service, int phone ){ |
533 | eth_proto_ref proto; |
533 | eth_proto_ref proto; |
534 | int protocol; |
534 | int protocol; |
535 | int index; |
535 | int index; |
536 | 536 | ||
537 | protocol = protocol_map( SERVICE_ETHERNET, service ); |
537 | protocol = protocol_map( SERVICE_ETHERNET, service ); |
538 | if( ! protocol ) return ENOENT; |
538 | if( ! protocol ) return ENOENT; |
539 | fibril_rwlock_write_lock( & eth_globals.protos_lock ); |
539 | fibril_rwlock_write_lock( & eth_globals.protos_lock ); |
540 | proto = eth_protos_find( & eth_globals.protos, protocol ); |
540 | proto = eth_protos_find( & eth_globals.protos, protocol ); |
541 | if( proto ){ |
541 | if( proto ){ |
542 | proto->phone = phone; |
542 | proto->phone = phone; |
543 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
543 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
544 | return EOK; |
544 | return EOK; |
545 | }else{ |
545 | }else{ |
546 | proto = ( eth_proto_ref ) malloc( sizeof( eth_proto_t )); |
546 | proto = ( eth_proto_ref ) malloc( sizeof( eth_proto_t )); |
547 | if( ! proto ){ |
547 | if( ! proto ){ |
548 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
548 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
549 | return ENOMEM; |
549 | return ENOMEM; |
550 | } |
550 | } |
551 | proto->service = service; |
551 | proto->service = service; |
552 | proto->protocol = protocol; |
552 | proto->protocol = protocol; |
553 | proto->phone = phone; |
553 | proto->phone = phone; |
554 | index = eth_protos_add( & eth_globals.protos, protocol, proto ); |
554 | index = eth_protos_add( & eth_globals.protos, protocol, proto ); |
555 | if( index < 0 ){ |
555 | if( index < 0 ){ |
556 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
556 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
557 | free( proto ); |
557 | free( proto ); |
558 | return index; |
558 | return index; |
559 | } |
559 | } |
560 | } |
560 | } |
561 | printf( "New protocol registered:\n\tprotocol\t= 0x%x\n\tservice\t= %d\n\tphone\t= %d\n", proto->protocol, proto->service, proto->phone ); |
561 | printf( "New protocol registered:\n\tprotocol\t= 0x%x\n\tservice\t= %d\n\tphone\t= %d\n", proto->protocol, proto->service, proto->phone ); |
562 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
562 | fibril_rwlock_write_unlock( & eth_globals.protos_lock ); |
563 | return EOK; |
563 | return EOK; |
564 | } |
564 | } |
565 | 565 | ||
566 | int eth_prepare_packet( int flags, packet_t packet, uint8_t * src_addr, int ethertype, size_t mtu ){ |
566 | int eth_prepare_packet( int flags, packet_t packet, uint8_t * src_addr, int ethertype, size_t mtu ){ |
567 | eth_header_snap_ref header; |
567 | eth_header_snap_ref header; |
568 | eth_header_lsap_ref header_lsap; |
568 | eth_header_lsap_ref header_lsap; |
569 | eth_header_ref header_dix; |
569 | eth_header_ref header_dix; |
570 | eth_fcs_ref fcs; |
570 | eth_fcs_ref fcs; |
571 | uint8_t * src; |
571 | uint8_t * src; |
572 | uint8_t * dest; |
572 | uint8_t * dest; |
573 | size_t length; |
573 | size_t length; |
574 | int i; |
574 | int i; |
575 | void * padding; |
575 | void * padding; |
576 | eth_preamble_ref preamble; |
576 | eth_preamble_ref preamble; |
577 | 577 | ||
578 | i = packet_get_addr( packet, & src, & dest ); |
578 | i = packet_get_addr( packet, & src, & dest ); |
579 | if( i < 0 ) return i; |
579 | if( i < 0 ) return i; |
580 | if( i != ETH_ADDR ) return EINVAL; |
580 | if( i != ETH_ADDR ) return EINVAL; |
581 | length = packet_get_data_length( packet ); |
581 | length = packet_get_data_length( packet ); |
582 | if( length > mtu ) return EINVAL; |
582 | if( length > mtu ) return EINVAL; |
583 | if( length < ETH_MIN_TAGGED_CONTENT( flags )){ |
583 | if( length < ETH_MIN_TAGGED_CONTENT( flags )){ |
584 | padding = packet_suffix( packet, ETH_MIN_TAGGED_CONTENT( flags ) - length ); |
584 | padding = packet_suffix( packet, ETH_MIN_TAGGED_CONTENT( flags ) - length ); |
585 | if( ! padding ) return ENOMEM; |
585 | if( ! padding ) return ENOMEM; |
586 | bzero( padding, ETH_MIN_TAGGED_CONTENT( flags ) - length ); |
586 | bzero( padding, ETH_MIN_TAGGED_CONTENT( flags ) - length ); |
587 | } |
587 | } |
588 | if( IS_DUMMY( flags )){ |
588 | if( IS_DUMMY( flags )){ |
589 | preamble = PACKET_PREFIX( packet, eth_preamble_t ); |
589 | preamble = PACKET_PREFIX( packet, eth_preamble_t ); |
590 | if( ! preamble ) return ENOMEM; |
590 | if( ! preamble ) return ENOMEM; |
591 | for( i = 0; i < 7; ++ i ) preamble->preamble[ i ] = ETH_PREAMBLE; |
591 | for( i = 0; i < 7; ++ i ) preamble->preamble[ i ] = ETH_PREAMBLE; |
592 | preamble->sfd = ETH_SFD; |
592 | preamble->sfd = ETH_SFD; |
593 | } |
593 | } |
594 | if( IS_DIX( flags )){ |
594 | if( IS_DIX( flags )){ |
595 | header_dix = PACKET_PREFIX( packet, eth_header_t ); |
595 | header_dix = PACKET_PREFIX( packet, eth_header_t ); |
596 | if( ! header_dix ) return ENOMEM; |
596 | if( ! header_dix ) return ENOMEM; |
597 | header_dix->ethertype = ( uint16_t ) ethertype; |
597 | header_dix->ethertype = ( uint16_t ) ethertype; |
598 | memcpy( header_dix->source_address, src_addr, ETH_ADDR ); |
598 | memcpy( header_dix->source_address, src_addr, ETH_ADDR ); |
599 | memcpy( header_dix->destination_address, dest, ETH_ADDR ); |
599 | memcpy( header_dix->destination_address, dest, ETH_ADDR ); |
600 | src = & header_dix->destination_address[ 0 ]; |
600 | src = & header_dix->destination_address[ 0 ]; |
601 | }else if( IS_8023_2_LSAP( flags )){ |
601 | }else if( IS_8023_2_LSAP( flags )){ |
602 | header_lsap = PACKET_PREFIX( packet, eth_header_lsap_t ); |
602 | header_lsap = PACKET_PREFIX( packet, eth_header_lsap_t ); |
603 | if( ! header_lsap ) return ENOMEM; |
603 | if( ! header_lsap ) return ENOMEM; |
604 | header_lsap->header.ethertype = htons( length + sizeof( eth_header_lsap_t )); |
604 | header_lsap->header.ethertype = htons( length + sizeof( eth_header_lsap_t )); |
605 | header_lsap->lsap.dsap = lsap_unmap( ntohs( ethertype )); |
605 | header_lsap->lsap.dsap = lsap_unmap( ntohs( ethertype )); |
606 | header_lsap->lsap.ssap = header_lsap->lsap.dsap; |
606 | header_lsap->lsap.ssap = header_lsap->lsap.dsap; |
607 | header_lsap->lsap.ctrl = IEEE_8023_2_UI; |
607 | header_lsap->lsap.ctrl = IEEE_8023_2_UI; |
608 | memcpy( header_lsap->header.source_address, src_addr, ETH_ADDR ); |
608 | memcpy( header_lsap->header.source_address, src_addr, ETH_ADDR ); |
609 | memcpy( header_lsap->header.destination_address, dest, ETH_ADDR ); |
609 | memcpy( header_lsap->header.destination_address, dest, ETH_ADDR ); |
610 | src = & header_lsap->header.destination_address[ 0 ]; |
610 | src = & header_lsap->header.destination_address[ 0 ]; |
611 | }else if( IS_8023_2_SNAP( flags )){ |
611 | }else if( IS_8023_2_SNAP( flags )){ |
612 | header = PACKET_PREFIX( packet, eth_header_snap_t ); |
612 | header = PACKET_PREFIX( packet, eth_header_snap_t ); |
613 | if( ! header ) return ENOMEM; |
613 | if( ! header ) return ENOMEM; |
614 | header->header.ethertype = htons( length + sizeof( eth_header_lsap_t ) + sizeof( eth_header_snap_t )); |
614 | header->header.ethertype = htons( length + sizeof( eth_header_lsap_t ) + sizeof( eth_header_snap_t )); |
615 | header->lsap.dsap = ( uint16_t ) ETH_LSAP_SNAP; |
615 | header->lsap.dsap = ( uint16_t ) ETH_LSAP_SNAP; |
616 | header->lsap.ssap = header->lsap.dsap; |
616 | header->lsap.ssap = header->lsap.dsap; |
617 | header->lsap.ctrl = IEEE_8023_2_UI; |
617 | header->lsap.ctrl = IEEE_8023_2_UI; |
618 | for( i = 0; i < 3; ++ i ) header->snap.protocol[ i ] = 0; |
618 | for( i = 0; i < 3; ++ i ) header->snap.protocol[ i ] = 0; |
619 | header->snap.ethertype = ( uint16_t ) ethertype; |
619 | header->snap.ethertype = ( uint16_t ) ethertype; |
620 | memcpy( header->header.source_address, src_addr, ETH_ADDR ); |
620 | memcpy( header->header.source_address, src_addr, ETH_ADDR ); |
621 | memcpy( header->header.destination_address, dest, ETH_ADDR ); |
621 | memcpy( header->header.destination_address, dest, ETH_ADDR ); |
622 | src = & header->header.destination_address[ 0 ]; |
622 | src = & header->header.destination_address[ 0 ]; |
623 | } |
623 | } |
624 | if( IS_DUMMY( flags )){ |
624 | if( IS_DUMMY( flags )){ |
625 | fcs = PACKET_SUFFIX( packet, eth_fcs_t ); |
625 | fcs = PACKET_SUFFIX( packet, eth_fcs_t ); |
626 | if( ! fcs ) return ENOMEM; |
626 | if( ! fcs ) return ENOMEM; |
627 | * fcs = htonl( ~ compute_crc32( ~ 0u, src, length * 8 )); |
627 | * fcs = htonl( ~ compute_crc32( ~ 0u, src, length * 8 )); |
628 | } |
628 | } |
629 | return EOK; |
629 | return EOK; |
630 | } |
630 | } |
631 | 631 | ||
632 | int eth_send_message( device_id_t device_id, packet_t packet, services_t sender ){ |
632 | int eth_send_message( device_id_t device_id, packet_t packet, services_t sender ){ |
633 | ERROR_DECLARE; |
633 | ERROR_DECLARE; |
634 | 634 | ||
635 | eth_device_ref device; |
635 | eth_device_ref device; |
636 | packet_t next; |
636 | packet_t next; |
637 | packet_t tmp; |
637 | packet_t tmp; |
638 | int ethertype; |
638 | int ethertype; |
639 | 639 | ||
640 | ethertype = htons( protocol_map( SERVICE_ETHERNET, sender )); |
640 | ethertype = htons( protocol_map( SERVICE_ETHERNET, sender )); |
641 | if( ! ethertype ){ |
641 | if( ! ethertype ){ |
642 | pq_release( eth_globals.net_phone, packet_get_id( packet )); |
642 | pq_release( eth_globals.net_phone, packet_get_id( packet )); |
643 | return EINVAL; |
643 | return EINVAL; |
644 | } |
644 | } |
645 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
645 | fibril_rwlock_read_lock( & eth_globals.devices_lock ); |
646 | device = eth_devices_find( & eth_globals.devices, device_id ); |
646 | device = eth_devices_find( & eth_globals.devices, device_id ); |
647 | if( ! device ){ |
647 | if( ! device ){ |
648 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
648 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
649 | return ENOENT; |
649 | return ENOENT; |
650 | } |
650 | } |
651 | // process packet queue |
651 | // process packet queue |
652 | next = packet; |
652 | next = packet; |
653 | do{ |
653 | do{ |
654 | if( ERROR_OCCURRED( eth_prepare_packet( device->flags, next, ( uint8_t * ) device->addr->value, ethertype, device->mtu ))){ |
654 | if( ERROR_OCCURRED( eth_prepare_packet( device->flags, next, ( uint8_t * ) device->addr->value, ethertype, device->mtu ))){ |
655 | // release invalid packet |
655 | // release invalid packet |
656 | tmp = pq_detach( next ); |
656 | tmp = pq_detach( next ); |
657 | if( next == packet ) packet = tmp; |
657 | if( next == packet ) packet = tmp; |
658 | pq_release( eth_globals.net_phone, packet_get_id( next )); |
658 | pq_release( eth_globals.net_phone, packet_get_id( next )); |
659 | next = tmp; |
659 | next = tmp; |
660 | }else{ |
660 | }else{ |
661 | next = pq_next( next ); |
661 | next = pq_next( next ); |
662 | } |
662 | } |
663 | }while( next ); |
663 | }while( next ); |
664 | // send packet queue |
664 | // send packet queue |
665 | if( packet ){ |
665 | if( packet ){ |
666 | netif_send_msg( device->phone, device_id, packet, SERVICE_ETHERNET ); |
666 | netif_send_msg( device->phone, device_id, packet, SERVICE_ETHERNET ); |
667 | } |
667 | } |
668 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
668 | fibril_rwlock_read_unlock( & eth_globals.devices_lock ); |
669 | return EOK; |
669 | return EOK; |
670 | } |
670 | } |
671 | 671 | ||
672 | int nil_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
672 | int nil_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
673 | ERROR_DECLARE; |
673 | ERROR_DECLARE; |
674 | 674 | ||
675 | measured_string_ref address; |
675 | measured_string_ref address; |
676 | packet_t packet; |
676 | packet_t packet; |
677 | 677 | ||
678 | // printf( "message %d - %d\n", IPC_GET_METHOD( * call ), NET_NIL_FIRST ); |
678 | // printf( "message %d - %d\n", IPC_GET_METHOD( * call ), NET_NIL_FIRST ); |
679 | * answer_count = 0; |
679 | * answer_count = 0; |
680 | switch( IPC_GET_METHOD( * call )){ |
680 | switch( IPC_GET_METHOD( * call )){ |
681 | case IPC_M_PHONE_HUNGUP: |
681 | case IPC_M_PHONE_HUNGUP: |
682 | return EOK; |
682 | return EOK; |
683 | case NET_NIL_DEVICE: |
683 | case NET_NIL_DEVICE: |
684 | return eth_device_message( IPC_GET_DEVICE( call ), IPC_GET_SERVICE( call ), IPC_GET_MTU( call )); |
684 | return eth_device_message( IPC_GET_DEVICE( call ), IPC_GET_SERVICE( call ), IPC_GET_MTU( call )); |
685 | case NET_NIL_SEND: |
685 | case NET_NIL_SEND: |
686 | ERROR_PROPAGATE( packet_translate( eth_globals.net_phone, & packet, IPC_GET_PACKET( call ))); |
686 | ERROR_PROPAGATE( packet_translate( eth_globals.net_phone, & packet, IPC_GET_PACKET( call ))); |
687 | return eth_send_message( IPC_GET_DEVICE( call ), packet, IPC_GET_SERVICE( call )); |
687 | return eth_send_message( IPC_GET_DEVICE( call ), packet, IPC_GET_SERVICE( call )); |
688 | case NET_NIL_PACKET_SPACE: |
688 | case NET_NIL_PACKET_SPACE: |
689 | 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 ))); |
689 | 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 ))); |
690 | * answer_count = 4; |
690 | * answer_count = 4; |
691 | return EOK; |
691 | return EOK; |
692 | case NET_NIL_ADDR: |
692 | case NET_NIL_ADDR: |
693 | ERROR_PROPAGATE( eth_addr_message( IPC_GET_DEVICE( call ), ETH_LOCAL_ADDR, & address )); |
693 | ERROR_PROPAGATE( eth_addr_message( IPC_GET_DEVICE( call ), ETH_LOCAL_ADDR, & address )); |
694 | return measured_strings_reply( address, 1 ); |
694 | return measured_strings_reply( address, 1 ); |
695 | case NET_NIL_BROADCAST_ADDR: |
695 | case NET_NIL_BROADCAST_ADDR: |
696 | ERROR_PROPAGATE( eth_addr_message( IPC_GET_DEVICE( call ), ETH_BROADCAST_ADDR, & address )); |
696 | ERROR_PROPAGATE( eth_addr_message( IPC_GET_DEVICE( call ), ETH_BROADCAST_ADDR, & address )); |
697 | return measured_strings_reply( address, 1 ); |
697 | return measured_strings_reply( address, 1 ); |
698 | case IPC_M_CONNECT_TO_ME: |
698 | case IPC_M_CONNECT_TO_ME: |
699 | return eth_register_message( NIL_GET_PROTO( call ), IPC_GET_PHONE( call )); |
699 | return eth_register_message( NIL_GET_PROTO( call ), IPC_GET_PHONE( call )); |
700 | } |
700 | } |
701 | return ENOTSUP; |
701 | return ENOTSUP; |
702 | } |
702 | } |
703 | 703 | ||
704 | void eth_receiver( ipc_callid_t iid, ipc_call_t * icall ){ |
704 | void eth_receiver( ipc_callid_t iid, ipc_call_t * icall ){ |
705 | ERROR_DECLARE; |
705 | ERROR_DECLARE; |
706 | 706 | ||
707 | packet_t packet; |
707 | packet_t packet; |
708 | 708 | ||
709 | while( true ){ |
709 | while( true ){ |
710 | // printf( "message %d - %d\n", IPC_GET_METHOD( * icall ), NET_NIL_FIRST ); |
710 | // printf( "message %d - %d\n", IPC_GET_METHOD( * icall ), NET_NIL_FIRST ); |
711 | switch( IPC_GET_METHOD( * icall )){ |
711 | switch( IPC_GET_METHOD( * icall )){ |
712 | case NET_NIL_DEVICE_STATE: |
712 | case NET_NIL_DEVICE_STATE: |
713 | nil_device_state_msg( 0, IPC_GET_DEVICE( icall ), IPC_GET_STATE( icall )); |
713 | nil_device_state_msg( 0, IPC_GET_DEVICE( icall ), IPC_GET_STATE( icall )); |
714 | ipc_answer_0( iid, EOK ); |
714 | ipc_answer_0( iid, EOK ); |
715 | break; |
715 | break; |
716 | case NET_NIL_RECEIVED: |
716 | case NET_NIL_RECEIVED: |
717 | if( ! ERROR_OCCURRED( packet_translate( eth_globals.net_phone, & packet, IPC_GET_PACKET( icall )))){ |
717 | if( ! ERROR_OCCURRED( packet_translate( eth_globals.net_phone, & packet, IPC_GET_PACKET( icall )))){ |
718 | ERROR_CODE = nil_received_msg( 0, IPC_GET_DEVICE( icall ), packet, 0 ); |
718 | ERROR_CODE = nil_received_msg( 0, IPC_GET_DEVICE( icall ), packet, 0 ); |
719 | } |
719 | } |
720 | ipc_answer_0( iid, ( ipcarg_t ) ERROR_CODE ); |
720 | ipc_answer_0( iid, ( ipcarg_t ) ERROR_CODE ); |
721 | break; |
721 | break; |
722 | default: |
722 | default: |
723 | ipc_answer_0( iid, ( ipcarg_t ) ENOTSUP ); |
723 | ipc_answer_0( iid, ( ipcarg_t ) ENOTSUP ); |
724 | } |
724 | } |
725 | iid = async_get_call( icall ); |
725 | iid = async_get_call( icall ); |
726 | } |
726 | } |
727 | } |
727 | } |
728 | 728 | ||
729 | /** @} |
729 | /** @} |
730 | */ |
730 | */ |
731 | 731 |