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1 | /* |
1 | /* |
2 | * Copyright (c) 2008 Lukas Mejdrech |
2 | * Copyright (c) 2008 Lukas Mejdrech |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup udp |
29 | /** @addtogroup udp |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | 32 | ||
33 | /** @file |
33 | /** @file |
34 | * UDP module implementation. |
34 | * UDP module implementation. |
35 | * @see udp.h |
35 | * @see udp.h |
36 | */ |
36 | */ |
37 | 37 | ||
38 | #include <async.h> |
38 | #include <async.h> |
39 | #include <fibril_sync.h> |
39 | #include <fibril_sync.h> |
40 | #include <malloc.h> |
40 | #include <malloc.h> |
41 | 41 | ||
42 | #include <ipc/ipc.h> |
42 | #include <ipc/ipc.h> |
43 | #include <ipc/services.h> |
43 | #include <ipc/services.h> |
44 | 44 | ||
45 | #include "../../err.h" |
45 | #include "../../err.h" |
46 | #include "../../messages.h" |
46 | #include "../../messages.h" |
47 | #include "../../modules.h" |
47 | #include "../../modules.h" |
48 | 48 | ||
49 | #include "../../structures/dynamic_fifo.h" |
49 | #include "../../structures/dynamic_fifo.h" |
50 | #include "../../structures/packet/packet_client.h" |
50 | #include "../../structures/packet/packet_client.h" |
51 | 51 | ||
52 | #include "../../include/in.h" |
52 | #include "../../include/in.h" |
53 | #include "../../include/inet.h" |
53 | #include "../../include/inet.h" |
54 | #include "../../include/ip_client.h" |
54 | #include "../../include/ip_client.h" |
55 | #include "../../include/ip_interface.h" |
55 | #include "../../include/ip_interface.h" |
56 | #include "../../include/ip_protocols.h" |
56 | #include "../../include/ip_protocols.h" |
57 | #include "../../include/icmp_client.h" |
57 | #include "../../include/icmp_client.h" |
58 | #include "../../include/icmp_interface.h" |
58 | #include "../../include/icmp_interface.h" |
59 | #include "../../include/socket.h" |
59 | #include "../../include/socket_codes.h" |
60 | #include "../../include/socket_errno.h" |
60 | #include "../../include/socket_errno.h" |
61 | 61 | ||
62 | #include "../../socket/socket_core.h" |
62 | #include "../../socket/socket_core.h" |
63 | #include "../../socket/socket_messages.h" |
63 | #include "../../socket/socket_messages.h" |
64 | 64 | ||
65 | #include "../tl_messages.h" |
65 | #include "../tl_messages.h" |
66 | 66 | ||
67 | #include "udp.h" |
67 | #include "udp.h" |
68 | #include "udp_header.h" |
68 | #include "udp_header.h" |
69 | #include "udp_module.h" |
69 | #include "udp_module.h" |
70 | 70 | ||
71 | /** Maximum UDP fragment size. |
71 | /** Maximum UDP fragment size. |
72 | */ |
72 | */ |
73 | #define MAX_UDP_FRAGMENT_SIZE 65535 |
73 | #define MAX_UDP_FRAGMENT_SIZE 65535 |
74 | 74 | ||
75 | /** Free ports pool start. |
75 | /** Free ports pool start. |
76 | */ |
76 | */ |
77 | #define UDP_FREE_PORTS_START 1025 |
77 | #define UDP_FREE_PORTS_START 1025 |
78 | 78 | ||
79 | /** Free ports pool end. |
79 | /** Free ports pool end. |
80 | */ |
80 | */ |
81 | #define UDP_FREE_PORTS_END 65535 |
81 | #define UDP_FREE_PORTS_END 65535 |
82 | 82 | ||
83 | /** Processes the received UDP packet queue. |
83 | /** Processes the received UDP packet queue. |
84 | * Is used as an entry point from the underlying IP module. |
84 | * Is used as an entry point from the underlying IP module. |
85 | * Notifies the destination socket application. |
85 | * Notifies the destination socket application. |
86 | * Releases the packet on error or send an ICMP error notification.. |
86 | * Releases the packet on error or send an ICMP error notification.. |
87 | * @param device_id The device identifier. Ignored parameter. |
87 | * @param device_id The device identifier. Ignored parameter. |
88 | * @param packet The received packet queue. Input/output parameter. |
88 | * @param packet The received packet queue. Input/output parameter. |
89 | * @param receiver The target service. Ignored parameter. |
89 | * @param receiver The target service. Ignored parameter. |
90 | * @param error The packet error reporting service. Prefixes the received packet. Input parameter. |
90 | * @param error The packet error reporting service. Prefixes the received packet. Input parameter. |
91 | * @returns EOK on success. |
91 | * @returns EOK on success. |
92 | * @returns EINVAL if the packet is not valid. |
92 | * @returns EINVAL if the packet is not valid. |
93 | * @returns EINVAL if the stored packet address is not the an_addr_t. |
93 | * @returns EINVAL if the stored packet address is not the an_addr_t. |
94 | * @returns EINVAL if the packet does not contain any data. |
94 | * @returns EINVAL if the packet does not contain any data. |
95 | * @returns NO_DATA if the packet content is shorter than the user datagram header. |
95 | * @returns NO_DATA if the packet content is shorter than the user datagram header. |
96 | * @returns ENOMEM if there is not enough memory left. |
96 | * @returns ENOMEM if there is not enough memory left. |
97 | * @returns EADDRNOTAVAIL if the destination socket does not exist. |
97 | * @returns EADDRNOTAVAIL if the destination socket does not exist. |
98 | * @returns Other error codes as defined for the ip_client_process_packet() function. |
98 | * @returns Other error codes as defined for the ip_client_process_packet() function. |
99 | */ |
99 | */ |
100 | int udp_received_msg( device_id_t device_id, packet_t packet, services_t receiver, services_t error ); |
100 | int udp_received_msg( device_id_t device_id, packet_t packet, services_t receiver, services_t error ); |
101 | 101 | ||
102 | /** Releases the packet and returns the result. |
102 | /** Releases the packet and returns the result. |
103 | * @param packet The packet queue to be released. Input parameter. |
103 | * @param packet The packet queue to be released. Input parameter. |
104 | * @param result The result to be returned. Input parameter. |
104 | * @param result The result to be returned. Input parameter. |
105 | * @return The result parameter. |
105 | * @return The result parameter. |
106 | */ |
106 | */ |
107 | static int release_and_return( packet_t packet, int result ); |
107 | int udp_release_and_return( packet_t packet, int result ); |
108 | 108 | ||
109 | /** Sends the port unreachable ICMP notification. |
109 | /** Sends the port unreachable ICMP notification. |
110 | * Sends the first packet and releases all the others. |
110 | * Sends the first packet and releases all the others. |
111 | * Releases the packet queu on error. |
111 | * Releases the packet queu on error. |
112 | * @param packet The packet to be send. Input parameter. |
112 | * @param packet The packet to be send. Input parameter. |
113 | * @param error The packet error reporting service. Prefixes the received packet. Input parameter. |
113 | * @param error The packet error reporting service. Prefixes the received packet. Input parameter. |
114 | */ |
114 | */ |
115 | void udp_send_icmp_port_unreachable( packet_t packet, services_t error ); |
115 | void udp_send_icmp_port_unreachable( packet_t packet, services_t error ); |
116 | 116 | ||
117 | /** @name Socket messages processing functions |
117 | /** @name Socket messages processing functions |
118 | */ |
118 | */ |
119 | /*@{*/ |
119 | /*@{*/ |
120 | 120 | ||
121 | /** Processes the socket client messages. |
121 | /** Processes the socket client messages. |
122 | * Runs until the client module disconnects. |
122 | * Runs until the client module disconnects. |
123 | * @param callid The message identifier. Input parameter. |
123 | * @param callid The message identifier. Input parameter. |
124 | * @param call The message parameters. Input parameter. |
124 | * @param call The message parameters. Input parameter. |
125 | * @returns EOK on success. |
125 | * @returns EOK on success. |
126 | * @see socket.h |
126 | * @see socket.h |
127 | */ |
127 | */ |
128 | int process_client_messages( ipc_callid_t callid, ipc_call_t call ); |
128 | int udp_process_client_messages( ipc_callid_t callid, ipc_call_t call ); |
129 | 129 | ||
130 | /** Sends data from the socket to the remote address. |
130 | /** Sends data from the socket to the remote address. |
131 | * Binds the socket to a free port if not already connected/bound. |
131 | * Binds the socket to a free port if not already connected/bound. |
132 | * Handles the NET_SOCKET_SENDTO message. |
132 | * Handles the NET_SOCKET_SENDTO message. |
133 | * @param local_sockets The application local sockets. Input/output parameter. |
133 | * @param local_sockets The application local sockets. Input/output parameter. |
134 | * @param socket_id Socket identifier. Input parameter. |
134 | * @param socket_id Socket identifier. Input parameter. |
135 | * @param addr The destination address. Input parameter. |
135 | * @param addr The destination address. Input parameter. |
136 | * @param addrlen The address length. Input parameter. |
136 | * @param addrlen The address length. Input parameter. |
137 | * @param fragments The number of data fragments. Input parameter. |
137 | * @param fragments The number of data fragments. Input parameter. |
138 | * @param flags Various send flags. Input parameter. |
138 | * @param flags Various send flags. Input parameter. |
139 | * @returns EOK on success. |
139 | * @returns EOK on success. |
140 | * @returns EAFNOTSUPPORT if the address family is not supported. |
140 | * @returns EAFNOTSUPPORT if the address family is not supported. |
141 | * @returns ENOTSOCK if the socket is not found. |
141 | * @returns ENOTSOCK if the socket is not found. |
142 | * @returns EINVAL if the address is invalid. |
142 | * @returns EINVAL if the address is invalid. |
143 | * @returns ENOTCONN if the sending socket is not and cannot be bound. |
143 | * @returns ENOTCONN if the sending socket is not and cannot be bound. |
144 | * @returns ENOMEM if there is not enough memory left. |
144 | * @returns ENOMEM if there is not enough memory left. |
145 | * @returns Other error codes as defined for the socket_read_packet_data() function. |
145 | * @returns Other error codes as defined for the socket_read_packet_data() function. |
146 | * @returns Other error codes as defined for the ip_client_prepare_packet() function. |
146 | * @returns Other error codes as defined for the ip_client_prepare_packet() function. |
147 | * @returns Other error codes as defined for the ip_send_msg() function. |
147 | * @returns Other error codes as defined for the ip_send_msg() function. |
148 | */ |
148 | */ |
149 | int udp_sendto_message( socket_cores_ref local_sockets, int socket_id, void * addr, size_t addrlen, int fragments, int flags ); |
149 | int udp_sendto_message( socket_cores_ref local_sockets, int socket_id, void * addr, size_t addrlen, int fragments, int flags ); |
150 | 150 | ||
151 | /** Receives data to the socket. |
151 | /** Receives data to the socket. |
152 | * Handles the NET_SOCKET_RECVFROM message. |
152 | * Handles the NET_SOCKET_RECVFROM message. |
153 | * @param local_sockets The application local sockets. Input parameter. |
153 | * @param local_sockets The application local sockets. Input parameter. |
154 | * @param socket_id Socket identifier. Input parameter. |
154 | * @param socket_id Socket identifier. Input parameter. |
155 | * @param flags Various receive flags. Input parameter. |
155 | * @param flags Various receive flags. Input parameter. |
156 | * @returns The number of bytes received. |
156 | * @returns The number of bytes received. |
157 | * @returns ENOTSOCK if the socket is not found. |
157 | * @returns ENOTSOCK if the socket is not found. |
158 | * @returns NO_DATA if there are no received packets or data. |
158 | * @returns NO_DATA if there are no received packets or data. |
159 | * @returns ENOMEM if there is not enough memory left. |
159 | * @returns ENOMEM if there is not enough memory left. |
160 | * @returns EINVAL if the received address is not an IP address. |
160 | * @returns EINVAL if the received address is not an IP address. |
161 | * @returns Other error codes as defined for the packet_translate() function. |
161 | * @returns Other error codes as defined for the packet_translate() function. |
162 | * @returns Other error codes as defined for the socket_write_data() function. |
162 | * @returns Other error codes as defined for the socket_write_data() function. |
163 | */ |
163 | */ |
164 | int udp_recvfrom_message( socket_cores_ref local_sockets, int socket_id, int flags ); |
164 | int udp_recvfrom_message( socket_cores_ref local_sockets, int socket_id, int flags ); |
165 | 165 | ||
166 | /*@}*/ |
166 | /*@}*/ |
167 | 167 | ||
168 | /** Receives data from the socket. |
168 | /** Receives data from the socket. |
169 | * The received data buffer is allocated and returned. |
169 | * The received data buffer is allocated and returned. |
170 | * @param data The data buffer to be filled. Output parameter. |
170 | * @param data The data buffer to be filled. Output parameter. |
171 | * @param length The buffer length. Output parameter. |
171 | * @param length The buffer length. Output parameter. |
172 | * @returns EOK on success. |
172 | * @returns EOK on success. |
173 | * @returns EBADMEM if the data or the length parameter is NULL. |
173 | * @returns EBADMEM if the data or the length parameter is NULL. |
174 | * @returns EINVAL if the client does not send data. |
174 | * @returns EINVAL if the client does not send data. |
175 | * @returns ENOMEM if there is not enough memory left. |
175 | * @returns ENOMEM if there is not enough memory left. |
176 | * @returns Other error codes as defined for the ipc_data_write_finalize() function. |
176 | * @returns Other error codes as defined for the ipc_data_write_finalize() function. |
177 | */ |
177 | */ |
178 | int socket_read_data( void ** data, size_t * length ); |
178 | int socket_read_data( void ** data, size_t * length ); |
179 | 179 | ||
180 | /** Receives data from the socket into a packet. |
180 | /** Receives data from the socket into a packet. |
181 | * @param packet The new created packet. Output parameter. |
181 | * @param packet The new created packet. Output parameter. |
182 | * @param prefix Reserved packet data prefix length. Input parameter. |
182 | * @param prefix Reserved packet data prefix length. Input parameter. |
183 | * @param address_in The destination address to be set. Input parameter. |
183 | * @param address_in The destination address to be set. Input parameter. |
184 | * @returns Number of bytes received. |
184 | * @returns Number of bytes received. |
185 | * @returns EINVAL if the client does not send data. |
185 | * @returns EINVAL if the client does not send data. |
186 | * @returns ENOMEM if there is not enough memory left. |
186 | * @returns ENOMEM if there is not enough memory left. |
187 | * @returns Other error codes as defined for the ipc_data_read_finalize() function. |
187 | * @returns Other error codes as defined for the ipc_data_read_finalize() function. |
188 | */ |
188 | */ |
189 | int socket_read_packet_data( packet_ref packet, size_t prefix, struct sockaddr_in * address_in ); |
189 | int socket_read_packet_data( packet_ref packet, size_t prefix, struct sockaddr_in * address_in ); |
190 | 190 | ||
191 | /** Replies the data to the socket. |
191 | /** Replies the data to the socket. |
192 | * @param data The data buffer to be sent. Input parameter. |
192 | * @param data The data buffer to be sent. Input parameter. |
193 | * @param data_length The buffer length. Input parameter. |
193 | * @param data_length The buffer length. Input parameter. |
194 | * @returns EOK on success. |
194 | * @returns EOK on success. |
195 | * @returns EINVAL if the client does not expect all the data. |
195 | * @returns EINVAL if the client does not expect all the data. |
196 | * @returns Other error codes as defined for the ipc_data_read_finalize() function. |
196 | * @returns Other error codes as defined for the ipc_data_read_finalize() function. |
197 | */ |
197 | */ |
198 | int socket_write_data( void * data, size_t data_length ); |
198 | int socket_write_data( void * data, size_t data_length ); |
199 | 199 | ||
200 | /** UDP global data. |
200 | /** UDP global data. |
201 | */ |
201 | */ |
202 | udp_globals_t udp_globals; |
202 | udp_globals_t udp_globals; |
203 | 203 | ||
204 | int udp_initialize( async_client_conn_t client_connection ){ |
204 | int udp_initialize( async_client_conn_t client_connection ){ |
205 | ERROR_DECLARE; |
205 | ERROR_DECLARE; |
206 | 206 | ||
207 | fibril_rwlock_initialize( & udp_globals.lock ); |
207 | fibril_rwlock_initialize( & udp_globals.lock ); |
208 | fibril_rwlock_write_lock( & udp_globals.lock ); |
208 | fibril_rwlock_write_lock( & udp_globals.lock ); |
209 | udp_globals.icmp_phone = icmp_connect_module( SERVICE_ICMP ); |
209 | udp_globals.icmp_phone = icmp_connect_module( SERVICE_ICMP ); |
210 | if( udp_globals.icmp_phone < 0 ){ |
210 | if( udp_globals.icmp_phone < 0 ){ |
211 | return udp_globals.icmp_phone; |
211 | return udp_globals.icmp_phone; |
212 | } |
212 | } |
213 | udp_globals.ip_phone = ip_bind_service( SERVICE_IP, IPPROTO_UDP, SERVICE_UDP, client_connection, udp_received_msg ); |
213 | udp_globals.ip_phone = ip_bind_service( SERVICE_IP, IPPROTO_UDP, SERVICE_UDP, client_connection, udp_received_msg ); |
214 | if( udp_globals.ip_phone < 0 ){ |
214 | if( udp_globals.ip_phone < 0 ){ |
215 | return udp_globals.ip_phone; |
215 | return udp_globals.ip_phone; |
216 | } |
216 | } |
217 | ERROR_PROPAGATE( ip_packet_size_req( udp_globals.ip_phone, -1, & udp_globals.addr_len, & udp_globals.prefix, & udp_globals.content, & udp_globals.suffix )); |
217 | ERROR_PROPAGATE( ip_packet_size_req( udp_globals.ip_phone, -1, & udp_globals.addr_len, & udp_globals.prefix, & udp_globals.content, & udp_globals.suffix )); |
218 | ERROR_PROPAGATE( socket_ports_initialize( & udp_globals.sockets )); |
218 | ERROR_PROPAGATE( socket_ports_initialize( & udp_globals.sockets )); |
219 | udp_globals.prefix += sizeof( udp_header_t ); |
219 | udp_globals.prefix += sizeof( udp_header_t ); |
220 | udp_globals.content -= sizeof( udp_header_t ); |
220 | udp_globals.content -= sizeof( udp_header_t ); |
221 | udp_globals.last_used_port = UDP_FREE_PORTS_START - 1; |
221 | udp_globals.last_used_port = UDP_FREE_PORTS_START - 1; |
222 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
222 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
223 | return EOK; |
223 | return EOK; |
224 | } |
224 | } |
225 | 225 | ||
226 | int udp_received_msg( device_id_t device_id, packet_t packet, services_t receiver, services_t error ){ |
226 | int udp_received_msg( device_id_t device_id, packet_t packet, services_t receiver, services_t error ){ |
227 | ERROR_DECLARE; |
227 | ERROR_DECLARE; |
228 | 228 | ||
229 | size_t length; |
229 | size_t length; |
230 | size_t offset; |
230 | size_t offset; |
231 | int result; |
231 | int result; |
232 | uint8_t * data; |
232 | uint8_t * data; |
233 | udp_header_ref header; |
233 | udp_header_ref header; |
234 | socket_core_ref * socket; |
234 | socket_core_ref * socket; |
235 | packet_t next_packet; |
235 | packet_t next_packet; |
236 | size_t total_length; |
236 | size_t total_length; |
237 | // uint16_t checksum; |
237 | // uint16_t checksum; |
238 | int fragments; |
238 | int fragments; |
239 | packet_t tmp_packet; |
239 | packet_t tmp_packet; |
240 | icmp_type_t type; |
240 | icmp_type_t type; |
241 | icmp_code_t code; |
241 | icmp_code_t code; |
242 | 242 | ||
243 | if( error ){ |
243 | if( error ){ |
244 | switch( error ){ |
244 | switch( error ){ |
245 | case SERVICE_ICMP: |
245 | case SERVICE_ICMP: |
246 | // process error |
246 | // process error |
247 | // TODO remove debug dump |
247 | // TODO remove debug dump |
248 | // length = icmp_client_header_length( packet ); |
248 | // length = icmp_client_header_length( packet ); |
249 | result = icmp_client_process_packet( packet, & type, & code, NULL, NULL ); |
249 | result = icmp_client_process_packet( packet, & type, & code, NULL, NULL ); |
250 | if( result < 0 ){ |
250 | if( result < 0 ){ |
251 | return release_and_return( packet, result ); |
251 | return udp_release_and_return( packet, result ); |
252 | } |
252 | } |
253 | printf( "ICMP error %d (%d) in packet %d\n", type, code, packet_get_id( packet ) ); |
253 | printf( "ICMP error %d (%d) in packet %d\n", type, code, packet_get_id( packet ) ); |
254 | length = ( size_t ) result; |
254 | length = ( size_t ) result; |
255 | if( ERROR_OCCURRED( packet_trim( packet, length, 0 ))){ |
255 | if( ERROR_OCCURRED( packet_trim( packet, length, 0 ))){ |
256 | return release_and_return( packet, ERROR_CODE ); |
256 | return udp_release_and_return( packet, ERROR_CODE ); |
257 | } |
257 | } |
258 | break; |
258 | break; |
259 | default: |
259 | default: |
260 | return release_and_return( packet, ENOTSUP ); |
260 | return udp_release_and_return( packet, ENOTSUP ); |
261 | } |
261 | } |
262 | } |
262 | } |
263 | // TODO process received ipopts? |
263 | // TODO process received ipopts? |
264 | result = ip_client_process_packet( packet, NULL, NULL, NULL, NULL, NULL ); |
264 | result = ip_client_process_packet( packet, NULL, NULL, NULL, NULL, NULL ); |
265 | if( result < 0 ){ |
265 | if( result < 0 ){ |
266 | return release_and_return( packet, result ); |
266 | return udp_release_and_return( packet, result ); |
267 | } |
267 | } |
268 | offset = ( size_t ) result; |
268 | offset = ( size_t ) result; |
269 | 269 | ||
270 | length = packet_get_data_length( packet ); |
270 | length = packet_get_data_length( packet ); |
271 | if( length <= 0 ){ |
271 | if( length <= 0 ){ |
272 | return release_and_return( packet, EINVAL ); |
272 | return udp_release_and_return( packet, EINVAL ); |
273 | } |
273 | } |
274 | if( length < sizeof( udp_header_t ) + offset ){ |
274 | if( length < sizeof( udp_header_t ) + offset ){ |
275 | return release_and_return( packet, NO_DATA ); |
275 | return udp_release_and_return( packet, NO_DATA ); |
276 | } |
276 | } |
277 | data = packet_get_data( packet ); |
277 | data = packet_get_data( packet ); |
278 | if( ! data ){ |
278 | if( ! data ){ |
279 | return release_and_return( packet, NO_DATA ); |
279 | return udp_release_and_return( packet, NO_DATA ); |
280 | } |
280 | } |
281 | // get udp header |
281 | // get udp header |
282 | header = ( udp_header_ref )( data + offset ); |
282 | header = ( udp_header_ref )( data + offset ); |
283 | // find the destination socket |
283 | // find the destination socket |
284 | socket = socket_ports_find( & udp_globals.sockets, ntohs( header->dest )); |
284 | socket = socket_ports_find( & udp_globals.sockets, ntohs( header->dest )); |
285 | if( ! socket ){ |
285 | if( ! socket ){ |
286 | udp_send_icmp_port_unreachable( packet, error ); |
286 | udp_send_icmp_port_unreachable( packet, error ); |
287 | return EADDRNOTAVAIL; |
287 | return EADDRNOTAVAIL; |
288 | } |
288 | } |
289 | // trim after successful processing to be able to send an ICMP error message! |
289 | // trim after successful processing to be able to send an ICMP error message! |
290 | ERROR_PROPAGATE( packet_trim( packet, offset, 0 )); |
290 | ERROR_PROPAGATE( packet_trim( packet, offset, 0 )); |
291 | // count the received packet fragments |
291 | // count the received packet fragments |
292 | next_packet = packet; |
292 | next_packet = packet; |
293 | fragments = 0; |
293 | fragments = 0; |
294 | total_length = ntohs( header->len ); |
294 | total_length = ntohs( header->len ); |
295 | do{ |
295 | do{ |
296 | ++ fragments; |
296 | ++ fragments; |
297 | length = packet_get_data_length( packet ); |
297 | length = packet_get_data_length( packet ); |
298 | if( length <= 0 ){ |
298 | if( length <= 0 ){ |
299 | return release_and_return( packet, NO_DATA ); |
299 | return udp_release_and_return( packet, NO_DATA ); |
300 | } |
300 | } |
301 | if( total_length < length ){ |
301 | if( total_length < length ){ |
302 | // cut of the suffix if too long |
302 | // cut of the suffix if too long |
303 | if( ERROR_OCCURRED( packet_trim( next_packet, 0, length - total_length ))){ |
303 | if( ERROR_OCCURRED( packet_trim( next_packet, 0, length - total_length ))){ |
304 | return release_and_return( packet, ERROR_CODE ); |
304 | return udp_release_and_return( packet, ERROR_CODE ); |
305 | } |
305 | } |
306 | // relese the rest of the packet fragments |
306 | // relese the rest of the packet fragments |
307 | tmp_packet = pq_next( next_packet ); |
307 | tmp_packet = pq_next( next_packet ); |
308 | while( tmp_packet ){ |
308 | while( tmp_packet ){ |
309 | next_packet = pq_detach( tmp_packet ); |
309 | next_packet = pq_detach( tmp_packet ); |
310 | pq_release( udp_globals.net_phone, packet_get_id( tmp_packet )); |
310 | pq_release( udp_globals.net_phone, packet_get_id( tmp_packet )); |
311 | tmp_packet = next_packet; |
311 | tmp_packet = next_packet; |
312 | } |
312 | } |
313 | break; |
313 | break; |
314 | } |
314 | } |
315 | total_length -= length; |
315 | total_length -= length; |
316 | /* if( header->header_checksum ){ |
316 | /* if( header->header_checksum ){ |
317 | } |
317 | } |
318 | */ |
318 | */ |
319 | }while(( next_packet = pq_next( next_packet )) && ( total_length > 0 )); |
319 | }while(( next_packet = pq_next( next_packet )) && ( total_length > 0 )); |
320 | // queue the received packet |
320 | // queue the received packet |
321 | if( ERROR_OCCURRED( dyn_fifo_push( &( ** socket ).received, packet_get_id( packet ), SOCKET_MAX_RECEIVED_SIZE ))){ |
321 | if( ERROR_OCCURRED( dyn_fifo_push( &( ** socket ).received, packet_get_id( packet ), SOCKET_MAX_RECEIVED_SIZE ))){ |
322 | return release_and_return( packet, ERROR_CODE ); |
322 | return udp_release_and_return( packet, ERROR_CODE ); |
323 | } |
323 | } |
324 | 324 | ||
325 | // notify the destination socket |
325 | // notify the destination socket |
326 | async_msg_2(( ** socket ).phone, NET_SOCKET_RECEIVED, ( ipcarg_t ) ( ** socket ).socket_id, ( ipcarg_t ) fragments ); |
326 | async_msg_2(( ** socket ).phone, NET_SOCKET_RECEIVED, ( ipcarg_t ) ( ** socket ).socket_id, ( ipcarg_t ) fragments ); |
327 | return EOK; |
327 | return EOK; |
328 | } |
328 | } |
329 | 329 | ||
330 | int udp_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
330 | int udp_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
331 | ERROR_DECLARE; |
331 | ERROR_DECLARE; |
332 | 332 | ||
333 | packet_t packet; |
333 | packet_t packet; |
334 | 334 | ||
335 | * answer_count = 0; |
335 | * answer_count = 0; |
336 | switch( IPC_GET_METHOD( * call )){ |
336 | switch( IPC_GET_METHOD( * call )){ |
337 | case NET_TL_RECEIVED: |
337 | case NET_TL_RECEIVED: |
338 | fibril_rwlock_read_lock( & udp_globals.lock ); |
338 | fibril_rwlock_read_lock( & udp_globals.lock ); |
339 | if( ! ERROR_OCCURRED( packet_translate( udp_globals.net_phone, & packet, IPC_GET_PACKET( call )))){ |
339 | if( ! ERROR_OCCURRED( packet_translate( udp_globals.net_phone, & packet, IPC_GET_PACKET( call )))){ |
340 | ERROR_CODE = udp_received_msg( IPC_GET_DEVICE( call ), packet, SERVICE_UDP, IPC_GET_ERROR( call )); |
340 | ERROR_CODE = udp_received_msg( IPC_GET_DEVICE( call ), packet, SERVICE_UDP, IPC_GET_ERROR( call )); |
341 | } |
341 | } |
342 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
342 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
343 | return ERROR_CODE; |
343 | return ERROR_CODE; |
344 | case IPC_M_CONNECT_TO_ME: |
344 | case IPC_M_CONNECT_TO_ME: |
345 | return process_client_messages( callid, * call ); |
345 | return udp_process_client_messages( callid, * call ); |
346 | } |
346 | } |
347 | return ENOTSUP; |
347 | return ENOTSUP; |
348 | } |
348 | } |
349 | 349 | ||
350 | int process_client_messages( ipc_callid_t callid, ipc_call_t call ){ |
350 | int udp_process_client_messages( ipc_callid_t callid, ipc_call_t call ){ |
351 | ERROR_DECLARE; |
- | |
352 | - | ||
353 | int res; |
351 | int res; |
354 | bool keep_on_going = true; |
352 | bool keep_on_going = true; |
355 | socket_cores_t local_sockets; |
353 | socket_cores_t local_sockets; |
356 | int app_phone = IPC_GET_PHONE( & call ); |
354 | int app_phone = IPC_GET_PHONE( & call ); |
357 | void * addr; |
355 | void * addr; |
358 | size_t addrlen; |
356 | size_t addrlen; |
359 | fibril_rwlock_t lock; |
357 | fibril_rwlock_t lock; |
360 | ipc_call_t answer; |
358 | ipc_call_t answer; |
361 | int answer_count; |
359 | int answer_count; |
362 | 360 | ||
363 | /* |
361 | /* |
364 | * Accept the connection |
362 | * Accept the connection |
365 | * - Answer the first IPC_M_CONNECT_ME_TO call. |
363 | * - Answer the first IPC_M_CONNECT_ME_TO call. |
366 | */ |
364 | */ |
367 | ipc_answer_0( callid, EOK ); |
365 | ipc_answer_0( callid, EOK ); |
368 | 366 | ||
369 | socket_cores_initialize( & local_sockets ); |
367 | socket_cores_initialize( & local_sockets ); |
370 | fibril_rwlock_initialize( & lock ); |
368 | fibril_rwlock_initialize( & lock ); |
371 | 369 | ||
372 | while( keep_on_going ){ |
370 | while( keep_on_going ){ |
373 | // refresh data |
371 | // refresh data |
374 | answer_count = 0; |
- | |
375 | IPC_SET_RETVAL( answer, 0 ); |
- | |
376 | // just to be precize |
- | |
377 | IPC_SET_METHOD( answer, 0 ); |
372 | refresh_answer( & answer, & answer_count ); |
378 | IPC_SET_ARG1( answer, 0 ); |
- | |
379 | IPC_SET_ARG2( answer, 0 ); |
- | |
380 | IPC_SET_ARG3( answer, 0 ); |
- | |
381 | IPC_SET_ARG4( answer, 0 ); |
- | |
382 | IPC_SET_ARG5( answer, 0 ); |
- | |
383 | 373 | ||
384 | callid = async_get_call( & call ); |
374 | callid = async_get_call( & call ); |
385 | // printf( "message %d\n", IPC_GET_METHOD( * call )); |
375 | // printf( "message %d\n", IPC_GET_METHOD( * call )); |
386 | 376 | ||
387 | switch( IPC_GET_METHOD( call )){ |
377 | switch( IPC_GET_METHOD( call )){ |
388 | case IPC_M_PHONE_HUNGUP: |
378 | case IPC_M_PHONE_HUNGUP: |
389 | keep_on_going = false; |
379 | keep_on_going = false; |
390 | res = EOK; |
380 | res = EOK; |
391 | break; |
381 | break; |
392 | case NET_SOCKET: |
382 | case NET_SOCKET: |
393 | fibril_rwlock_write_lock( & lock ); |
383 | fibril_rwlock_write_lock( & lock ); |
394 | res = socket_create( & local_sockets, app_phone, SOCKET_SET_SOCKET_ID( answer )); |
384 | res = socket_create( & local_sockets, app_phone, SOCKET_SET_SOCKET_ID( answer )); |
395 | fibril_rwlock_write_unlock( & lock ); |
385 | fibril_rwlock_write_unlock( & lock ); |
396 | * SOCKET_SET_HEADER_SIZE( answer ) = sizeof( udp_header_t ); |
386 | * SOCKET_SET_HEADER_SIZE( answer ) = sizeof( udp_header_t ); |
397 | * SOCKET_SET_DATA_FRAGMENT_SIZE( answer ) = MAX_UDP_FRAGMENT_SIZE; |
387 | * SOCKET_SET_DATA_FRAGMENT_SIZE( answer ) = MAX_UDP_FRAGMENT_SIZE; |
398 | answer_count = 3; |
388 | answer_count = 3; |
399 | break; |
389 | break; |
400 | case NET_SOCKET_BIND: |
390 | case NET_SOCKET_BIND: |
401 | if( ERROR_OCCURRED( socket_read_data( & addr, & addrlen ))){ |
391 | res = socket_read_data( & addr, & addrlen ); |
402 | res = ERROR_CODE; |
392 | if( res == EOK ){ |
- | 393 | fibril_rwlock_write_lock( & lock ); |
|
- | 394 | fibril_rwlock_write_lock( & udp_globals.lock ); |
|
- | 395 | res = socket_bind( & local_sockets, & udp_globals.sockets, SOCKET_GET_SOCKET_ID( call ), addr, addrlen, UDP_FREE_PORTS_START, UDP_FREE_PORTS_END, udp_globals.last_used_port ); |
|
- | 396 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
|
- | 397 | fibril_rwlock_write_unlock( & lock ); |
|
403 | break; |
398 | free( addr ); |
404 | } |
399 | } |
405 | fibril_rwlock_write_lock( & lock ); |
- | |
406 | fibril_rwlock_write_lock( & udp_globals.lock ); |
- | |
407 | res = socket_bind( & local_sockets, & udp_globals.sockets, SOCKET_GET_SOCKET_ID( call ), addr, addrlen, UDP_FREE_PORTS_START, UDP_FREE_PORTS_END, udp_globals.last_used_port ); |
- | |
408 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
- | |
409 | fibril_rwlock_write_unlock( & lock ); |
- | |
410 | free( addr ); |
- | |
411 | break; |
400 | break; |
412 | case NET_SOCKET_SENDTO: |
401 | case NET_SOCKET_SENDTO: |
413 | if( ERROR_OCCURRED( socket_read_data( & addr, & addrlen ))){ |
402 | res = socket_read_data( & addr, & addrlen ); |
414 | res = ERROR_CODE; |
403 | if( res == EOK ){ |
- | 404 | fibril_rwlock_read_lock( & lock ); |
|
- | 405 | fibril_rwlock_read_lock( & udp_globals.lock ); |
|
- | 406 | res = udp_sendto_message( & local_sockets, SOCKET_GET_SOCKET_ID( call ), addr, addrlen, SOCKET_GET_DATA_FRAGMENTS( call ), SOCKET_GET_FLAGS( call )); |
|
- | 407 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
|
- | 408 | fibril_rwlock_read_unlock( & lock ); |
|
415 | break; |
409 | free( addr ); |
416 | } |
410 | } |
417 | fibril_rwlock_read_lock( & lock ); |
- | |
418 | fibril_rwlock_read_lock( & udp_globals.lock ); |
- | |
419 | res = udp_sendto_message( & local_sockets, SOCKET_GET_SOCKET_ID( call ), addr, addrlen, SOCKET_GET_DATA_FRAGMENTS( call ), SOCKET_GET_FLAGS( call )); |
- | |
420 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
- | |
421 | fibril_rwlock_read_unlock( & lock ); |
- | |
422 | free( addr ); |
- | |
423 | break; |
411 | break; |
424 | case NET_SOCKET_RECVFROM: |
412 | case NET_SOCKET_RECVFROM: |
425 | fibril_rwlock_read_lock( & lock ); |
413 | fibril_rwlock_read_lock( & lock ); |
426 | fibril_rwlock_read_lock( & udp_globals.lock ); |
414 | fibril_rwlock_read_lock( & udp_globals.lock ); |
427 | res = udp_recvfrom_message( & local_sockets, SOCKET_GET_SOCKET_ID( call ), SOCKET_GET_FLAGS( call )); |
415 | res = udp_recvfrom_message( & local_sockets, SOCKET_GET_SOCKET_ID( call ), SOCKET_GET_FLAGS( call )); |
428 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
416 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
429 | fibril_rwlock_read_unlock( & lock ); |
417 | fibril_rwlock_read_unlock( & lock ); |
430 | if( res > 0 ){ |
418 | if( res > 0 ){ |
431 | * SOCKET_SET_READ_DATA_LENGTH( answer ) = res; |
419 | * SOCKET_SET_READ_DATA_LENGTH( answer ) = res; |
432 | * SOCKET_SET_ADDRESS_LENGTH( answer ) = sizeof( struct sockaddr_in ); |
420 | * SOCKET_SET_ADDRESS_LENGTH( answer ) = sizeof( struct sockaddr_in ); |
433 | answer_count = 2; |
421 | answer_count = 2; |
434 | res = EOK; |
422 | res = EOK; |
435 | } |
423 | } |
436 | break; |
424 | break; |
437 | case NET_SOCKET_CLOSE: |
425 | case NET_SOCKET_CLOSE: |
438 | fibril_rwlock_write_lock( & lock ); |
426 | fibril_rwlock_write_lock( & lock ); |
439 | fibril_rwlock_write_lock( & udp_globals.lock ); |
427 | fibril_rwlock_write_lock( & udp_globals.lock ); |
440 | res = socket_destroy( udp_globals.net_phone, SOCKET_GET_SOCKET_ID( call ), & local_sockets, & udp_globals.sockets ); |
428 | res = socket_destroy( udp_globals.net_phone, SOCKET_GET_SOCKET_ID( call ), & local_sockets, & udp_globals.sockets ); |
441 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
429 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
442 | fibril_rwlock_write_unlock( & lock ); |
430 | fibril_rwlock_write_unlock( & lock ); |
443 | break; |
431 | break; |
444 | case NET_SOCKET_GETSOCKOPT: |
432 | case NET_SOCKET_GETSOCKOPT: |
445 | case NET_SOCKET_SETSOCKOPT: |
433 | case NET_SOCKET_SETSOCKOPT: |
446 | default: |
434 | default: |
447 | res = ENOTSUP; |
435 | res = ENOTSUP; |
448 | break; |
436 | break; |
449 | } |
437 | } |
450 | 438 | ||
451 | // printf( "res = %d\n", res ); |
439 | // printf( "res = %d\n", res ); |
452 | 440 | ||
453 | switch( answer_count ){ |
- | |
454 | case 0: ipc_answer_0( callid, ( ipcarg_t ) res ); |
- | |
455 | continue; |
- | |
456 | case 1: ipc_answer_1( callid, ( ipcarg_t ) res, IPC_GET_ARG1( answer )); |
441 | answer_call( callid, res, & answer, answer_count ); |
457 | continue; |
- | |
458 | case 2: ipc_answer_2( callid, ( ipcarg_t ) res, IPC_GET_ARG1( answer ), IPC_GET_ARG2( answer )); |
- | |
459 | continue; |
- | |
460 | case 3: ipc_answer_3( callid, ( ipcarg_t ) res, IPC_GET_ARG1( answer ), IPC_GET_ARG2( answer ), IPC_GET_ARG3( answer )); |
- | |
461 | continue; |
- | |
462 | case 4: ipc_answer_4( callid, ( ipcarg_t ) res, IPC_GET_ARG1( answer ), IPC_GET_ARG2( answer ), IPC_GET_ARG3( answer ), IPC_GET_ARG4( answer )); |
- | |
463 | continue; |
- | |
464 | default: ipc_answer_5( callid, ( ipcarg_t ) res, IPC_GET_ARG1( answer ), IPC_GET_ARG2( answer ), IPC_GET_ARG3( answer ), IPC_GET_ARG4( answer ), IPC_GET_ARG5( answer )); |
- | |
465 | continue; |
- | |
466 | } |
- | |
467 | } |
442 | } |
468 | 443 | ||
469 | socket_cores_destroy( & local_sockets ); |
444 | socket_cores_destroy( & local_sockets ); |
470 | 445 | ||
471 | return EOK; |
446 | return EOK; |
472 | } |
447 | } |
473 | 448 | ||
474 | int udp_sendto_message( socket_cores_ref local_sockets, int socket_id, void * addr, size_t addrlen, int fragments, int flags ){ |
449 | int udp_sendto_message( socket_cores_ref local_sockets, int socket_id, void * addr, size_t addrlen, int fragments, int flags ){ |
475 | ERROR_DECLARE; |
450 | ERROR_DECLARE; |
476 | 451 | ||
477 | socket_core_ref socket; |
452 | socket_core_ref socket; |
478 | struct sockaddr * address; |
453 | struct sockaddr * address; |
479 | struct sockaddr_in * address_in; |
454 | struct sockaddr_in * address_in; |
480 | packet_t packet; |
455 | packet_t packet; |
481 | packet_t next_packet; |
456 | packet_t next_packet; |
482 | udp_header_ref header; |
457 | udp_header_ref header; |
483 | int index; |
458 | int index; |
484 | size_t total_length; |
459 | size_t total_length; |
485 | int result; |
460 | int result; |
486 | 461 | ||
487 | if( addrlen < sizeof( struct sockaddr )) return EINVAL; |
462 | if( addrlen < sizeof( struct sockaddr )) return EINVAL; |
488 | address = ( struct sockaddr * ) addr; |
463 | address = ( struct sockaddr * ) addr; |
489 | switch( address->sa_family ){ |
464 | switch( address->sa_family ){ |
490 | case AF_INET: |
465 | case AF_INET: |
491 | if( addrlen != sizeof( struct sockaddr_in )) return EINVAL; |
466 | if( addrlen != sizeof( struct sockaddr_in )) return EINVAL; |
492 | address_in = ( struct sockaddr_in * ) addr; |
467 | address_in = ( struct sockaddr_in * ) addr; |
493 | socket = socket_cores_find( local_sockets, socket_id ); |
468 | socket = socket_cores_find( local_sockets, socket_id ); |
494 | if( ! socket ) return ENOTSOCK; |
469 | if( ! socket ) return ENOTSOCK; |
495 | 470 | ||
496 | // bind the socket to a random free port if not bound |
471 | // bind the socket to a random free port if not bound |
497 | if( socket->port <= 0 ){ |
472 | while( socket->port <= 0 ){ |
498 | // try to find a free port |
473 | // try to find a free port |
499 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
474 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
500 | fibril_rwlock_write_lock( & udp_globals.lock ); |
475 | fibril_rwlock_write_lock( & udp_globals.lock ); |
- | 476 | if( socket->port <= 0 ){ |
|
501 | ERROR_PROPAGATE( socket_bind_free_port( & udp_globals.sockets, socket, UDP_FREE_PORTS_START, UDP_FREE_PORTS_END, udp_globals.last_used_port )); |
477 | ERROR_PROPAGATE( socket_bind_free_port( & udp_globals.sockets, socket, UDP_FREE_PORTS_START, UDP_FREE_PORTS_END, udp_globals.last_used_port )); |
- | 478 | // set the next port as the search starting port number |
|
- | 479 | udp_globals.last_used_port = socket->port; |
|
- | 480 | } |
|
502 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
481 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
503 | fibril_rwlock_read_lock( & udp_globals.lock ); |
482 | fibril_rwlock_read_lock( & udp_globals.lock ); |
504 | // set the next port as the search starting port number |
- | |
505 | udp_globals.last_used_port = socket->port; |
- | |
506 | } |
483 | } |
507 | // TODO do not ask all the time |
484 | // TODO do not ask all the time |
508 | ERROR_PROPAGATE( ip_packet_size_req( udp_globals.ip_phone, -1, & udp_globals.addr_len, & udp_globals.prefix, & udp_globals.content, & udp_globals.suffix )); |
485 | ERROR_PROPAGATE( ip_packet_size_req( udp_globals.ip_phone, -1, & udp_globals.addr_len, & udp_globals.prefix, & udp_globals.content, & udp_globals.suffix )); |
509 | 486 | ||
510 | // read the first packet fragment |
487 | // read the first packet fragment |
511 | result = socket_read_packet_data( & packet, sizeof( udp_header_t ), address_in ); |
488 | result = socket_read_packet_data( & packet, sizeof( udp_header_t ), address_in ); |
512 | if( result < 0 ) return result; |
489 | if( result < 0 ) return result; |
513 | total_length = ( size_t ) result; |
490 | total_length = ( size_t ) result; |
514 | // prefix the udp header |
491 | // prefix the udp header |
515 | header = PACKET_PREFIX( packet, udp_header_t ); |
492 | header = PACKET_PREFIX( packet, udp_header_t ); |
516 | if( ! header ){ |
493 | if( ! header ){ |
517 | pq_release( udp_globals.net_phone, packet_get_id( packet )); |
494 | pq_release( udp_globals.net_phone, packet_get_id( packet )); |
518 | return ENOMEM; |
495 | return ENOMEM; |
519 | } |
496 | } |
520 | // read the rest of the packet fragments |
497 | // read the rest of the packet fragments |
521 | for( index = 1; index < fragments; ++ index ){ |
498 | for( index = 1; index < fragments; ++ index ){ |
522 | result = socket_read_packet_data( & next_packet, 0, address_in ); |
499 | result = socket_read_packet_data( & next_packet, 0, address_in ); |
523 | if( result < 0 ){ |
500 | if( result < 0 ){ |
524 | return release_and_return( packet, result ); |
501 | return udp_release_and_return( packet, result ); |
525 | } |
502 | } |
526 | packet = pq_add( packet, next_packet, index, 0 ); |
503 | packet = pq_add( packet, next_packet, index, 0 ); |
527 | total_length += ( size_t ) result; |
504 | total_length += ( size_t ) result; |
528 | } |
505 | } |
529 | // set the udp header |
506 | // set the udp header |
530 | header->source = htons( socket->port ); |
507 | header->source = htons( socket->port ); |
531 | header->dest = htons( address_in->sin_port ); |
508 | header->dest = htons( address_in->sin_port ); |
532 | header->len = htons( total_length + sizeof( udp_header_t )); |
509 | header->len = htons( total_length + sizeof( udp_header_t )); |
533 | // TODO my ip address for the pseudo header checksum |
510 | // TODO my ip address for the pseudo header checksum |
534 | header->check = 0; |
511 | header->check = 0; |
535 | // prepare the first packet fragment |
512 | // prepare the first packet fragment |
536 | if( ERROR_OCCURRED( ip_client_prepare_packet( packet, IPPROTO_UDP, 0, 0, 0, 0 ))){ |
513 | if( ERROR_OCCURRED( ip_client_prepare_packet( packet, IPPROTO_UDP, 0, 0, 0, 0 ))){ |
537 | pq_release( udp_globals.net_phone, packet_get_id( packet )); |
514 | pq_release( udp_globals.net_phone, packet_get_id( packet )); |
538 | return ERROR_CODE; |
515 | return ERROR_CODE; |
539 | } |
516 | } |
540 | // send the packet |
517 | // send the packet |
541 | return ip_send_msg( udp_globals.ip_phone, socket->device_id, packet, SERVICE_UDP, 0 ); |
518 | return ip_send_msg( udp_globals.ip_phone, socket->device_id, packet, SERVICE_UDP, 0 ); |
542 | // TODO IPv6 |
519 | // TODO IPv6 |
543 | } |
520 | } |
544 | return EAFNOSUPPORT; |
521 | return EAFNOSUPPORT; |
545 | } |
522 | } |
546 | 523 | ||
547 | int udp_recvfrom_message( socket_cores_ref local_sockets, int socket_id, int flags ){ |
524 | int udp_recvfrom_message( socket_cores_ref local_sockets, int socket_id, int flags ){ |
548 | ERROR_DECLARE; |
525 | ERROR_DECLARE; |
549 | 526 | ||
550 | socket_core_ref socket; |
527 | socket_core_ref socket; |
551 | int packet_id; |
528 | int packet_id; |
552 | packet_t packet; |
529 | packet_t packet; |
553 | udp_header_ref header; |
530 | udp_header_ref header; |
554 | struct sockaddr_in address; |
531 | struct sockaddr_in address; |
555 | size_t length; |
532 | size_t length; |
556 | packet_t next_packet; |
533 | packet_t next_packet; |
557 | uint8_t * data; |
534 | uint8_t * data; |
558 | size_t fragments; |
535 | size_t fragments; |
559 | size_t * lengths; |
536 | size_t * lengths; |
560 | int result; |
537 | int result; |
561 | size_t index; |
538 | size_t index; |
562 | uint8_t * addr; |
539 | uint8_t * addr; |
563 | 540 | ||
564 | // find the socket |
541 | // find the socket |
565 | socket = socket_cores_find( local_sockets, socket_id ); |
542 | socket = socket_cores_find( local_sockets, socket_id ); |
566 | if( ! socket ) return ENOTSOCK; |
543 | if( ! socket ) return ENOTSOCK; |
567 | // get the next received packet |
544 | // get the next received packet |
568 | packet_id = dyn_fifo_value( & socket->received ); |
545 | packet_id = dyn_fifo_value( & socket->received ); |
569 | if( packet_id < 0 ) return NO_DATA; |
546 | if( packet_id < 0 ) return NO_DATA; |
570 | ERROR_PROPAGATE( packet_translate( udp_globals.net_phone, & packet, packet_id )); |
547 | ERROR_PROPAGATE( packet_translate( udp_globals.net_phone, & packet, packet_id )); |
571 | // get udp header |
548 | // get udp header |
572 | data = packet_get_data( packet ); |
549 | data = packet_get_data( packet ); |
573 | if( ! data ){ |
550 | if( ! data ){ |
574 | pq_release( udp_globals.net_phone, packet_id ); |
551 | pq_release( udp_globals.net_phone, packet_id ); |
575 | return NO_DATA; |
552 | return NO_DATA; |
576 | } |
553 | } |
577 | header = ( udp_header_ref ) data; |
554 | header = ( udp_header_ref ) data; |
578 | // set the source address |
555 | // set the source address |
579 | address.sin_family = PF_INET; |
556 | address.sin_family = PF_INET; |
580 | address.sin_port = ntohs( header->source ); |
557 | address.sin_port = ntohs( header->source ); |
581 | result = packet_get_addr( packet, & addr, NULL ); |
558 | result = packet_get_addr( packet, & addr, NULL ); |
582 | if( result != sizeof( address.sin_addr.s_addr )){ |
559 | if( result != sizeof( address.sin_addr.s_addr )){ |
583 | pq_release( udp_globals.net_phone, packet_id ); |
560 | pq_release( udp_globals.net_phone, packet_id ); |
584 | return EINVAL; |
561 | return EINVAL; |
585 | } |
562 | } |
586 | address.sin_addr.s_addr = *(( uint32_t * ) addr ); |
563 | address.sin_addr.s_addr = *(( uint32_t * ) addr ); |
587 | bzero( & address.sin_zero, sizeof( address.sin_zero )); |
564 | bzero( & address.sin_zero, sizeof( address.sin_zero )); |
588 | // send the source address |
565 | // send the source address |
589 | ERROR_PROPAGATE( socket_write_data( & address, sizeof( address ))); |
566 | ERROR_PROPAGATE( socket_write_data( & address, sizeof( address ))); |
590 | next_packet = pq_next( packet ); |
567 | next_packet = pq_next( packet ); |
591 | if( ! next_packet ){ |
568 | if( ! next_packet ){ |
592 | // write all if only one fragment |
569 | // write all if only one fragment |
593 | ERROR_PROPAGATE( socket_write_data( data + sizeof( udp_header_t ), packet_get_data_length( packet ) - sizeof( udp_header_t ))); |
570 | ERROR_PROPAGATE( socket_write_data( data + sizeof( udp_header_t ), packet_get_data_length( packet ) - sizeof( udp_header_t ))); |
594 | // store the total length |
571 | // store the total length |
595 | length = packet_get_data_length( packet ) - sizeof( udp_header_t ); |
572 | length = packet_get_data_length( packet ) - sizeof( udp_header_t ); |
596 | }else{ |
573 | }else{ |
597 | // count the packet fragments |
574 | // count the packet fragments |
598 | fragments = 1; |
575 | fragments = 1; |
599 | next_packet = pq_next( packet ); |
576 | next_packet = pq_next( packet ); |
600 | while(( next_packet = pq_next( next_packet ))){ |
577 | while(( next_packet = pq_next( next_packet ))){ |
601 | ++ fragments; |
578 | ++ fragments; |
602 | } |
579 | } |
603 | // compute and store the fragment lengths |
580 | // compute and store the fragment lengths |
604 | lengths = ( size_t * ) malloc( sizeof( size_t ) * fragments + sizeof( size_t )); |
581 | lengths = ( size_t * ) malloc( sizeof( size_t ) * fragments + sizeof( size_t )); |
605 | if( ! lengths ) return ENOMEM; |
582 | if( ! lengths ) return ENOMEM; |
606 | lengths[ 0 ] = packet_get_data_length( packet ) - sizeof( udp_header_t ); |
583 | lengths[ 0 ] = packet_get_data_length( packet ) - sizeof( udp_header_t ); |
607 | lengths[ fragments ] = lengths[ 0 ]; |
584 | lengths[ fragments ] = lengths[ 0 ]; |
608 | next_packet = pq_next( packet ); |
585 | next_packet = pq_next( packet ); |
609 | for( index = 1; index < fragments; ++ index ){ |
586 | for( index = 1; index < fragments; ++ index ){ |
610 | lengths[ index ] = packet_get_data_length( next_packet ); |
587 | lengths[ index ] = packet_get_data_length( next_packet ); |
611 | lengths[ fragments ] += lengths[ index ]; |
588 | lengths[ fragments ] += lengths[ index ]; |
612 | next_packet = pq_next( packet ); |
589 | next_packet = pq_next( packet ); |
613 | }while( next_packet ); |
590 | }while( next_packet ); |
614 | // write the fragment lengths |
591 | // write the fragment lengths |
615 | ERROR_PROPAGATE( socket_write_data( lengths, sizeof( int ) * ( fragments + 1 ))); |
592 | ERROR_PROPAGATE( socket_write_data( lengths, sizeof( int ) * ( fragments + 1 ))); |
616 | // write the first fragment |
593 | // write the first fragment |
617 | ERROR_PROPAGATE( socket_write_data( data + sizeof( udp_header_t ), lengths[ 0 ] )); |
594 | ERROR_PROPAGATE( socket_write_data( data + sizeof( udp_header_t ), lengths[ 0 ] )); |
618 | next_packet = pq_next( packet ); |
595 | next_packet = pq_next( packet ); |
619 | // write the rest of the fragments |
596 | // write the rest of the fragments |
620 | for( index = 1; index < fragments; ++ index ){ |
597 | for( index = 1; index < fragments; ++ index ){ |
621 | ERROR_PROPAGATE( socket_write_data( packet_get_data( next_packet ), lengths[ index ] )); |
598 | ERROR_PROPAGATE( socket_write_data( packet_get_data( next_packet ), lengths[ index ] )); |
622 | next_packet = pq_next( packet ); |
599 | next_packet = pq_next( packet ); |
623 | }while( next_packet ); |
600 | }while( next_packet ); |
624 | // store the total length |
601 | // store the total length |
625 | length = lengths[ fragments ]; |
602 | length = lengths[ fragments ]; |
626 | free( lengths ); |
603 | free( lengths ); |
627 | } |
604 | } |
628 | // release the packet |
605 | // release the packet |
629 | dyn_fifo_pop( & socket->received ); |
606 | dyn_fifo_pop( & socket->received ); |
630 | pq_release( udp_globals.net_phone, packet_get_id( packet )); |
607 | pq_release( udp_globals.net_phone, packet_get_id( packet )); |
631 | // return the total length |
608 | // return the total length |
632 | return ( int ) length; |
609 | return ( int ) length; |
633 | } |
610 | } |
634 | 611 | ||
635 | int socket_write_data( void * data, size_t data_length ){ |
612 | int socket_write_data( void * data, size_t data_length ){ |
636 | size_t length; |
613 | size_t length; |
637 | ipc_callid_t callid; |
614 | ipc_callid_t callid; |
638 | 615 | ||
639 | if(( ! ipc_data_read_receive( & callid, & length )) |
616 | if(( ! ipc_data_read_receive( & callid, & length )) |
640 | || ( length < data_length )){ |
617 | || ( length < data_length )){ |
641 | return EINVAL; |
618 | return EINVAL; |
642 | } |
619 | } |
643 | return ipc_data_read_finalize( callid, data, data_length ); |
620 | return ipc_data_read_finalize( callid, data, data_length ); |
644 | } |
621 | } |
645 | 622 | ||
646 | int socket_read_data( void ** data, size_t * length ){ |
623 | int socket_read_data( void ** data, size_t * length ){ |
647 | ERROR_DECLARE; |
624 | ERROR_DECLARE; |
648 | 625 | ||
649 | ipc_callid_t callid; |
626 | ipc_callid_t callid; |
650 | 627 | ||
651 | if( !( data && length )) return EBADMEM; |
628 | if( !( data && length )) return EBADMEM; |
652 | if( ! ipc_data_write_receive( & callid, length )) return EINVAL; |
629 | if( ! ipc_data_write_receive( & callid, length )) return EINVAL; |
653 | * data = malloc( * length ); |
630 | * data = malloc( * length ); |
654 | if( !( * data )) return ENOMEM; |
631 | if( !( * data )) return ENOMEM; |
655 | if( ERROR_OCCURRED( ipc_data_write_finalize( callid, * data, * length ))){ |
632 | if( ERROR_OCCURRED( ipc_data_write_finalize( callid, * data, * length ))){ |
656 | free( data ); |
633 | free( data ); |
657 | return ERROR_CODE; |
634 | return ERROR_CODE; |
658 | } |
635 | } |
659 | return EOK; |
636 | return EOK; |
660 | } |
637 | } |
661 | 638 | ||
662 | int socket_read_packet_data( packet_ref packet, size_t prefix, struct sockaddr_in * address_in ){ |
639 | int socket_read_packet_data( packet_ref packet, size_t prefix, struct sockaddr_in * address_in ){ |
663 | ERROR_DECLARE; |
640 | ERROR_DECLARE; |
664 | 641 | ||
665 | ipc_callid_t callid; |
642 | ipc_callid_t callid; |
666 | size_t length; |
643 | size_t length; |
667 | void * data; |
644 | void * data; |
668 | 645 | ||
669 | // get the data length |
646 | // get the data length |
670 | if( ! ipc_data_write_receive( & callid, & length )) return EINVAL; |
647 | if( ! ipc_data_write_receive( & callid, & length )) return EINVAL; |
671 | // get a new packet |
648 | // get a new packet |
672 | * packet = packet_get_4( udp_globals.net_phone, length, udp_globals.addr_len, prefix + udp_globals.prefix, udp_globals.suffix ); |
649 | * packet = packet_get_4( udp_globals.net_phone, length, udp_globals.addr_len, prefix + udp_globals.prefix, udp_globals.suffix ); |
673 | if( ! packet ) return ENOMEM; |
650 | if( ! packet ) return ENOMEM; |
674 | // allocate space in the packet |
651 | // allocate space in the packet |
675 | data = packet_suffix( * packet, length ); |
652 | data = packet_suffix( * packet, length ); |
676 | if( ! data ){ |
653 | if( ! data ){ |
677 | pq_release( udp_globals.net_phone, packet_get_id( * packet )); |
654 | pq_release( udp_globals.net_phone, packet_get_id( * packet )); |
678 | return ENOMEM; |
655 | return ENOMEM; |
679 | } |
656 | } |
680 | // read the data into the packet |
657 | // read the data into the packet |
681 | if( ERROR_OCCURRED( ipc_data_write_finalize( callid, data, length )) |
658 | if( ERROR_OCCURRED( ipc_data_write_finalize( callid, data, length )) |
682 | // set the packet destination address |
659 | // set the packet destination address |
683 | || ERROR_OCCURRED( packet_set_addr( * packet, NULL, ( uint8_t * ) & address_in->sin_addr.s_addr, sizeof( address_in->sin_addr.s_addr )))){ |
660 | || ERROR_OCCURRED( packet_set_addr( * packet, NULL, ( uint8_t * ) & address_in->sin_addr.s_addr, sizeof( address_in->sin_addr.s_addr )))){ |
684 | pq_release( udp_globals.net_phone, packet_get_id( * packet )); |
661 | pq_release( udp_globals.net_phone, packet_get_id( * packet )); |
685 | return ERROR_CODE; |
662 | return ERROR_CODE; |
686 | } |
663 | } |
687 | return ( int ) length; |
664 | return ( int ) length; |
688 | } |
665 | } |
689 | 666 | ||
690 | static int release_and_return( packet_t packet, int result ){ |
667 | int udp_release_and_return( packet_t packet, int result ){ |
691 | pq_release( udp_globals.net_phone, packet_get_id( packet )); |
668 | pq_release( udp_globals.net_phone, packet_get_id( packet )); |
692 | return result; |
669 | return result; |
693 | } |
670 | } |
694 | 671 | ||
695 | void udp_send_icmp_port_unreachable( packet_t packet, services_t error ){ |
672 | void udp_send_icmp_port_unreachable( packet_t packet, services_t error ){ |
696 | packet_t next; |
673 | packet_t next; |
697 | uint8_t * src; |
674 | uint8_t * src; |
698 | int length; |
675 | int length; |
699 | 676 | ||
700 | // detach the first packet and release the others |
677 | // detach the first packet and release the others |
701 | next = pq_detach( packet ); |
678 | next = pq_detach( packet ); |
702 | if( next ){ |
679 | if( next ){ |
703 | pq_release( udp_globals.net_phone, packet_get_id( next )); |
680 | pq_release( udp_globals.net_phone, packet_get_id( next )); |
704 | } |
681 | } |
705 | length = packet_get_addr( packet, & src, NULL ); |
682 | length = packet_get_addr( packet, & src, NULL ); |
706 | if(( length > 0 ) |
683 | if(( length > 0 ) |
707 | && ( ! error ) |
684 | && ( ! error ) |
708 | && ( udp_globals.icmp_phone >= 0 ) |
685 | && ( udp_globals.icmp_phone >= 0 ) |
709 | // set both addresses to the source one (avoids the source address deletion before setting the destination one) |
686 | // set both addresses to the source one (avoids the source address deletion before setting the destination one) |
710 | && ( packet_set_addr( packet, src, src, ( size_t ) length ) == EOK )){ |
687 | && ( packet_set_addr( packet, src, src, ( size_t ) length ) == EOK )){ |
711 | icmp_destination_unreachable_msg( udp_globals.icmp_phone, ICMP_PORT_UNREACH, 0, packet ); |
688 | icmp_destination_unreachable_msg( udp_globals.icmp_phone, ICMP_PORT_UNREACH, 0, packet ); |
712 | }else{ |
689 | }else{ |
713 | release_and_return( packet, EINVAL ); |
690 | udp_release_and_return( packet, EINVAL ); |
714 | } |
691 | } |
715 | } |
692 | } |
716 | 693 | ||
717 | /** @} |
694 | /** @} |
718 | */ |
695 | */ |
719 | 696 |