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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/crc.h" |
|
| 52 | #include "../../include/in.h" |
53 | #include "../../include/in.h" |
| 53 | #include "../../include/in6.h" |
54 | #include "../../include/in6.h" |
| 54 | #include "../../include/inet.h" |
55 | #include "../../include/inet.h" |
| 55 | #include "../../include/ip_client.h" |
56 | #include "../../include/ip_client.h" |
| 56 | #include "../../include/ip_interface.h" |
57 | #include "../../include/ip_interface.h" |
| 57 | #include "../../include/ip_protocols.h" |
58 | #include "../../include/ip_protocols.h" |
| 58 | #include "../../include/icmp_client.h" |
59 | #include "../../include/icmp_client.h" |
| 59 | #include "../../include/icmp_interface.h" |
60 | #include "../../include/icmp_interface.h" |
| - | 61 | #include "../../include/net_interface.h" |
|
| 60 | #include "../../include/socket_codes.h" |
62 | #include "../../include/socket_codes.h" |
| 61 | #include "../../include/socket_errno.h" |
63 | #include "../../include/socket_errno.h" |
| 62 | 64 | ||
| 63 | #include "../../socket/socket_core.h" |
65 | #include "../../socket/socket_core.h" |
| 64 | #include "../../socket/socket_messages.h" |
66 | #include "../../socket/socket_messages.h" |
| 65 | 67 | ||
| 66 | #include "../tl_messages.h" |
68 | #include "../tl_messages.h" |
| 67 | 69 | ||
| 68 | #include "udp.h" |
70 | #include "udp.h" |
| 69 | #include "udp_header.h" |
71 | #include "udp_header.h" |
| 70 | #include "udp_module.h" |
72 | #include "udp_module.h" |
| 71 | 73 | ||
| - | 74 | /** Default UDP checksum computing. |
|
| - | 75 | */ |
|
| - | 76 | #define NET_DEFAULT_UDP_CHECKSUM_COMPUTING true |
|
| - | 77 | ||
| 72 | /** Maximum UDP fragment size. |
78 | /** Maximum UDP fragment size. |
| 73 | */ |
79 | */ |
| 74 | #define MAX_UDP_FRAGMENT_SIZE 65535 |
80 | #define MAX_UDP_FRAGMENT_SIZE 65535 |
| 75 | 81 | ||
| 76 | /** Free ports pool start. |
82 | /** Free ports pool start. |
| 77 | */ |
83 | */ |
| 78 | #define UDP_FREE_PORTS_START 1025 |
84 | #define UDP_FREE_PORTS_START 1025 |
| 79 | 85 | ||
| 80 | /** Free ports pool end. |
86 | /** Free ports pool end. |
| 81 | */ |
87 | */ |
| 82 | #define UDP_FREE_PORTS_END 65535 |
88 | #define UDP_FREE_PORTS_END 65535 |
| 83 | 89 | ||
| 84 | /** Processes the received UDP packet queue. |
90 | /** Processes the received UDP packet queue. |
| 85 | * Is used as an entry point from the underlying IP module. |
91 | * Is used as an entry point from the underlying IP module. |
| 86 | * Notifies the destination socket application. |
92 | * Notifies the destination socket application. |
| 87 | * Releases the packet on error or send an ICMP error notification.. |
93 | * Releases the packet on error or send an ICMP error notification.. |
| 88 | * @param device_id The device identifier. Ignored parameter. |
94 | * @param device_id The device identifier. Ignored parameter. |
| 89 | * @param packet The received packet queue. Input/output parameter. |
95 | * @param packet The received packet queue. Input/output parameter. |
| 90 | * @param receiver The target service. Ignored parameter. |
96 | * @param receiver The target service. Ignored parameter. |
| 91 | * @param error The packet error reporting service. Prefixes the received packet. Input parameter. |
97 | * @param error The packet error reporting service. Prefixes the received packet. Input parameter. |
| 92 | * @returns EOK on success. |
98 | * @returns EOK on success. |
| 93 | * @returns EINVAL if the packet is not valid. |
99 | * @returns EINVAL if the packet is not valid. |
| 94 | * @returns EINVAL if the stored packet address is not the an_addr_t. |
100 | * @returns EINVAL if the stored packet address is not the an_addr_t. |
| 95 | * @returns EINVAL if the packet does not contain any data. |
101 | * @returns EINVAL if the packet does not contain any data. |
| 96 | * @returns NO_DATA if the packet content is shorter than the user datagram header. |
102 | * @returns NO_DATA if the packet content is shorter than the user datagram header. |
| 97 | * @returns ENOMEM if there is not enough memory left. |
103 | * @returns ENOMEM if there is not enough memory left. |
| 98 | * @returns EADDRNOTAVAIL if the destination socket does not exist. |
104 | * @returns EADDRNOTAVAIL if the destination socket does not exist. |
| 99 | * @returns Other error codes as defined for the ip_client_process_packet() function. |
105 | * @returns Other error codes as defined for the ip_client_process_packet() function. |
| 100 | */ |
106 | */ |
| 101 | int udp_received_msg( device_id_t device_id, packet_t packet, services_t receiver, services_t error ); |
107 | int udp_received_msg( device_id_t device_id, packet_t packet, services_t receiver, services_t error ); |
| 102 | 108 | ||
| 103 | /** Releases the packet and returns the result. |
109 | /** Releases the packet and returns the result. |
| 104 | * @param packet The packet queue to be released. Input parameter. |
110 | * @param packet The packet queue to be released. Input parameter. |
| 105 | * @param result The result to be returned. Input parameter. |
111 | * @param result The result to be returned. Input parameter. |
| 106 | * @return The result parameter. |
112 | * @return The result parameter. |
| 107 | */ |
113 | */ |
| 108 | int udp_release_and_return( packet_t packet, int result ); |
114 | int udp_release_and_return( packet_t packet, int result ); |
| 109 | 115 | ||
| 110 | /** Sends the port unreachable ICMP notification. |
116 | /** Sends the port unreachable ICMP notification. |
| 111 | * Sends the first packet and releases all the others. |
117 | * Sends the first packet and releases all the others. |
| 112 | * Releases the packet queu on error. |
118 | * Releases the packet queu on error. |
| 113 | * @param packet The packet to be send. Input parameter. |
119 | * @param packet The packet to be send. Input parameter. |
| 114 | * @param error The packet error reporting service. Prefixes the received packet. Input parameter. |
120 | * @param error The packet error reporting service. Prefixes the received packet. Input parameter. |
| 115 | */ |
121 | */ |
| 116 | void udp_send_icmp_port_unreachable( packet_t packet, services_t error ); |
122 | void udp_send_icmp_port_unreachable( packet_t packet, services_t error ); |
| 117 | 123 | ||
| 118 | /** @name Socket messages processing functions |
124 | /** @name Socket messages processing functions |
| 119 | */ |
125 | */ |
| 120 | /*@{*/ |
126 | /*@{*/ |
| 121 | 127 | ||
| 122 | /** Processes the socket client messages. |
128 | /** Processes the socket client messages. |
| 123 | * Runs until the client module disconnects. |
129 | * Runs until the client module disconnects. |
| 124 | * @param callid The message identifier. Input parameter. |
130 | * @param callid The message identifier. Input parameter. |
| 125 | * @param call The message parameters. Input parameter. |
131 | * @param call The message parameters. Input parameter. |
| 126 | * @returns EOK on success. |
132 | * @returns EOK on success. |
| 127 | * @see socket.h |
133 | * @see socket.h |
| 128 | */ |
134 | */ |
| 129 | int udp_process_client_messages( ipc_callid_t callid, ipc_call_t call ); |
135 | int udp_process_client_messages( ipc_callid_t callid, ipc_call_t call ); |
| 130 | 136 | ||
| 131 | /** Sends data from the socket to the remote address. |
137 | /** Sends data from the socket to the remote address. |
| 132 | * Binds the socket to a free port if not already connected/bound. |
138 | * Binds the socket to a free port if not already connected/bound. |
| 133 | * Handles the NET_SOCKET_SENDTO message. |
139 | * Handles the NET_SOCKET_SENDTO message. |
| 134 | * Supports AF_INET and AF_INET6 address families. |
140 | * Supports AF_INET and AF_INET6 address families. |
| 135 | * @param local_sockets The application local sockets. Input/output parameter. |
141 | * @param local_sockets The application local sockets. Input/output parameter. |
| 136 | * @param socket_id Socket identifier. Input parameter. |
142 | * @param socket_id Socket identifier. Input parameter. |
| 137 | * @param addr The destination address. Input parameter. |
143 | * @param addr The destination address. Input parameter. |
| 138 | * @param addrlen The address length. Input parameter. |
144 | * @param addrlen The address length. Input parameter. |
| 139 | * @param fragments The number of data fragments. Input parameter. |
145 | * @param fragments The number of data fragments. Input parameter. |
| 140 | * @param flags Various send flags. Input parameter. |
146 | * @param flags Various send flags. Input parameter. |
| 141 | * @returns EOK on success. |
147 | * @returns EOK on success. |
| 142 | * @returns EAFNOTSUPPORT if the address family is not supported. |
148 | * @returns EAFNOTSUPPORT if the address family is not supported. |
| 143 | * @returns ENOTSOCK if the socket is not found. |
149 | * @returns ENOTSOCK if the socket is not found. |
| 144 | * @returns EINVAL if the address is invalid. |
150 | * @returns EINVAL if the address is invalid. |
| 145 | * @returns ENOTCONN if the sending socket is not and cannot be bound. |
151 | * @returns ENOTCONN if the sending socket is not and cannot be bound. |
| 146 | * @returns ENOMEM if there is not enough memory left. |
152 | * @returns ENOMEM if there is not enough memory left. |
| 147 | * @returns Other error codes as defined for the socket_read_packet_data() function. |
153 | * @returns Other error codes as defined for the socket_read_packet_data() function. |
| 148 | * @returns Other error codes as defined for the ip_client_prepare_packet() function. |
154 | * @returns Other error codes as defined for the ip_client_prepare_packet() function. |
| 149 | * @returns Other error codes as defined for the ip_send_msg() function. |
155 | * @returns Other error codes as defined for the ip_send_msg() function. |
| 150 | */ |
156 | */ |
| 151 | int udp_sendto_message( socket_cores_ref local_sockets, int socket_id, const struct sockaddr * addr, socklen_t addrlen, int fragments, int flags ); |
157 | int udp_sendto_message( socket_cores_ref local_sockets, int socket_id, const struct sockaddr * addr, socklen_t addrlen, int fragments, int flags ); |
| 152 | 158 | ||
| 153 | /** Receives data to the socket. |
159 | /** Receives data to the socket. |
| 154 | * Handles the NET_SOCKET_RECVFROM message. |
160 | * Handles the NET_SOCKET_RECVFROM message. |
| 155 | * Replies the source address as well. |
161 | * Replies the source address as well. |
| 156 | * @param local_sockets The application local sockets. Input parameter. |
162 | * @param local_sockets The application local sockets. Input parameter. |
| 157 | * @param socket_id Socket identifier. Input parameter. |
163 | * @param socket_id Socket identifier. Input parameter. |
| 158 | * @param flags Various receive flags. Input parameter. |
164 | * @param flags Various receive flags. Input parameter. |
| 159 | * @param addrlen The source address length. Output parameter. |
165 | * @param addrlen The source address length. Output parameter. |
| 160 | * @returns The number of bytes received. |
166 | * @returns The number of bytes received. |
| 161 | * @returns ENOTSOCK if the socket is not found. |
167 | * @returns ENOTSOCK if the socket is not found. |
| 162 | * @returns NO_DATA if there are no received packets or data. |
168 | * @returns NO_DATA if there are no received packets or data. |
| 163 | * @returns ENOMEM if there is not enough memory left. |
169 | * @returns ENOMEM if there is not enough memory left. |
| 164 | * @returns EINVAL if the received address is not an IP address. |
170 | * @returns EINVAL if the received address is not an IP address. |
| 165 | * @returns Other error codes as defined for the packet_translate() function. |
171 | * @returns Other error codes as defined for the packet_translate() function. |
| 166 | * @returns Other error codes as defined for the socket_write_data() function. |
172 | * @returns Other error codes as defined for the data_reply() function. |
| 167 | */ |
173 | */ |
| 168 | int udp_recvfrom_message( socket_cores_ref local_sockets, int socket_id, int flags, size_t * addrlen ); |
174 | int udp_recvfrom_message( socket_cores_ref local_sockets, int socket_id, int flags, size_t * addrlen ); |
| 169 | 175 | ||
| 170 | /*@}*/ |
176 | /*@}*/ |
| 171 | 177 | ||
| 172 | /** Receives data from the socket. |
- | |
| 173 | * The received data buffer is allocated and returned. |
- | |
| 174 | * @param data The data buffer to be filled. Output parameter. |
- | |
| 175 | * @param length The buffer length. Output parameter. |
- | |
| 176 | * @returns EOK on success. |
- | |
| 177 | * @returns EBADMEM if the data or the length parameter is NULL. |
- | |
| 178 | * @returns EINVAL if the client does not send data. |
- | |
| 179 | * @returns ENOMEM if there is not enough memory left. |
- | |
| 180 | * @returns Other error codes as defined for the ipc_data_write_finalize() function. |
- | |
| 181 | */ |
- | |
| 182 | int socket_read_data( void ** data, size_t * length ); |
- | |
| 183 | - | ||
| 184 | /** Receives data from the socket into a packet. |
178 | /** Receives data from the socket into a packet. |
| 185 | * @param packet The new created packet. Output parameter. |
179 | * @param packet The new created packet. Output parameter. |
| 186 | * @param prefix Reserved packet data prefix length. Input parameter. |
180 | * @param prefix Reserved packet data prefix length. Input parameter. |
| 187 | * @param addr The destination address. Input parameter. |
181 | * @param addr The destination address. Input parameter. |
| 188 | * @param addrlen The address length. Input parameter. |
182 | * @param addrlen The address length. Input parameter. |
| 189 | * @returns Number of bytes received. |
183 | * @returns Number of bytes received. |
| 190 | * @returns EINVAL if the client does not send data. |
184 | * @returns EINVAL if the client does not send data. |
| 191 | * @returns ENOMEM if there is not enough memory left. |
185 | * @returns ENOMEM if there is not enough memory left. |
| 192 | * @returns Other error codes as defined for the ipc_data_read_finalize() function. |
186 | * @returns Other error codes as defined for the ipc_data_read_finalize() function. |
| 193 | */ |
187 | */ |
| 194 | int socket_read_packet_data( packet_ref packet, size_t prefix, const struct sockaddr * addr, socklen_t addrlen ); |
188 | int socket_read_packet_data( packet_ref packet, size_t prefix, const struct sockaddr * addr, socklen_t addrlen ); |
| 195 | 189 | ||
| 196 | /** Replies the data to the socket. |
- | |
| 197 | * @param data The data buffer to be sent. Input parameter. |
- | |
| 198 | * @param data_length The buffer length. Input parameter. |
- | |
| 199 | * @returns EOK on success. |
- | |
| 200 | * @returns EINVAL if the client does not expect all the data. |
- | |
| 201 | * @returns Other error codes as defined for the ipc_data_read_finalize() function. |
- | |
| 202 | */ |
- | |
| 203 | int socket_write_data( void * data, size_t data_length ); |
- | |
| 204 | - | ||
| 205 | /** Sets the address port. |
190 | /** Sets the address port. |
| 206 | * Supports AF_INET and AF_INET6 address families. |
191 | * Supports AF_INET and AF_INET6 address families. |
| 207 | * @param addr The address to be updated. Input/output parameter. |
192 | * @param addr The address to be updated. Input/output parameter. |
| 208 | * @param addrlen The address length. Input parameter. |
193 | * @param addrlen The address length. Input parameter. |
| 209 | * @param port The port to be set. Input parameter. |
194 | * @param port The port to be set. Input parameter. |
| 210 | * @returns EOK on success. |
195 | * @returns EOK on success. |
| 211 | * @returns EINVAL if the address length does not match the address family. |
196 | * @returns EINVAL if the address length does not match the address family. |
| 212 | * @returns EAFNOSUPPORT if the address family is not supported. |
197 | * @returns EAFNOSUPPORT if the address family is not supported. |
| 213 | */ |
198 | */ |
| 214 | int udp_set_address_port( struct sockaddr * addr, int addrlen, uint16_t port ); |
199 | int udp_set_address_port( struct sockaddr * addr, int addrlen, uint16_t port ); |
| 215 | 200 | ||
| 216 | /** UDP global data. |
201 | /** UDP global data. |
| 217 | */ |
202 | */ |
| 218 | udp_globals_t udp_globals; |
203 | udp_globals_t udp_globals; |
| 219 | 204 | ||
| 220 | int udp_initialize( async_client_conn_t client_connection ){ |
205 | int udp_initialize( async_client_conn_t client_connection ){ |
| 221 | ERROR_DECLARE; |
206 | ERROR_DECLARE; |
| 222 | 207 | ||
| - | 208 | measured_string_t names[] = {{ "UDP_CHECKSUM_COMPUTING", 22 }}; |
|
| - | 209 | measured_string_ref configuration; |
|
| - | 210 | size_t count = sizeof( names ) / sizeof( measured_string_t ); |
|
| - | 211 | char * data; |
|
| - | 212 | ||
| 223 | fibril_rwlock_initialize( & udp_globals.lock ); |
213 | fibril_rwlock_initialize( & udp_globals.lock ); |
| 224 | fibril_rwlock_write_lock( & udp_globals.lock ); |
214 | fibril_rwlock_write_lock( & udp_globals.lock ); |
| 225 | udp_globals.icmp_phone = icmp_connect_module( SERVICE_ICMP ); |
215 | udp_globals.icmp_phone = icmp_connect_module( SERVICE_ICMP ); |
| 226 | if( udp_globals.icmp_phone < 0 ){ |
216 | if( udp_globals.icmp_phone < 0 ){ |
| 227 | return udp_globals.icmp_phone; |
217 | return udp_globals.icmp_phone; |
| 228 | } |
218 | } |
| 229 | udp_globals.ip_phone = ip_bind_service( SERVICE_IP, IPPROTO_UDP, SERVICE_UDP, client_connection, udp_received_msg ); |
219 | udp_globals.ip_phone = ip_bind_service( SERVICE_IP, IPPROTO_UDP, SERVICE_UDP, client_connection, udp_received_msg ); |
| 230 | if( udp_globals.ip_phone < 0 ){ |
220 | if( udp_globals.ip_phone < 0 ){ |
| 231 | return udp_globals.ip_phone; |
221 | return udp_globals.ip_phone; |
| 232 | } |
222 | } |
| 233 | ERROR_PROPAGATE( ip_packet_size_req( udp_globals.ip_phone, -1, & udp_globals.addr_len, & udp_globals.prefix, & udp_globals.content, & udp_globals.suffix )); |
223 | ERROR_PROPAGATE( ip_packet_size_req( udp_globals.ip_phone, -1, & udp_globals.addr_len, & udp_globals.prefix, & udp_globals.content, & udp_globals.suffix )); |
| 234 | ERROR_PROPAGATE( socket_ports_initialize( & udp_globals.sockets )); |
224 | ERROR_PROPAGATE( socket_ports_initialize( & udp_globals.sockets )); |
| 235 | udp_globals.prefix += sizeof( udp_header_t ); |
225 | udp_globals.prefix += sizeof( udp_header_t ); |
| 236 | udp_globals.content -= sizeof( udp_header_t ); |
226 | udp_globals.content -= sizeof( udp_header_t ); |
| 237 | udp_globals.last_used_port = UDP_FREE_PORTS_START - 1; |
227 | udp_globals.last_used_port = UDP_FREE_PORTS_START - 1; |
| - | 228 | // get configuration |
|
| - | 229 | udp_globals.checksum_computing = NET_DEFAULT_UDP_CHECKSUM_COMPUTING; |
|
| - | 230 | configuration = & names[ 0 ]; |
|
| - | 231 | ERROR_PROPAGATE( net_get_conf_req( udp_globals.net_phone, & configuration, count, & data )); |
|
| - | 232 | if( configuration ){ |
|
| - | 233 | if( configuration[ 0 ].value ){ |
|
| - | 234 | udp_globals.checksum_computing = ( configuration[ 0 ].value[ 0 ] == 'y' ); |
|
| - | 235 | } |
|
| - | 236 | net_free_settings( configuration, data ); |
|
| - | 237 | } |
|
| 238 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
238 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
| 239 | return EOK; |
239 | return EOK; |
| 240 | } |
240 | } |
| 241 | 241 | ||
| 242 | int udp_received_msg( device_id_t device_id, packet_t packet, services_t receiver, services_t error ){ |
242 | int udp_received_msg( device_id_t device_id, packet_t packet, services_t receiver, services_t error ){ |
| 243 | ERROR_DECLARE; |
243 | ERROR_DECLARE; |
| 244 | 244 | ||
| 245 | size_t length; |
245 | size_t length; |
| 246 | size_t offset; |
246 | size_t offset; |
| 247 | int result; |
247 | int result; |
| 248 | uint8_t * data; |
248 | uint8_t * data; |
| 249 | udp_header_ref header; |
249 | udp_header_ref header; |
| 250 | socket_core_ref * socket; |
250 | socket_core_ref * socket; |
| 251 | packet_t next_packet; |
251 | packet_t next_packet; |
| 252 | size_t total_length; |
252 | size_t total_length; |
| 253 | // uint16_t checksum; |
253 | uint32_t checksum; |
| 254 | int fragments; |
254 | int fragments; |
| 255 | packet_t tmp_packet; |
255 | packet_t tmp_packet; |
| 256 | icmp_type_t type; |
256 | icmp_type_t type; |
| 257 | icmp_code_t code; |
257 | icmp_code_t code; |
| - | 258 | ip_pseudo_header_ref ip_header; |
|
| - | 259 | struct sockaddr * src; |
|
| - | 260 | struct sockaddr * dest; |
|
| 258 | 261 | ||
| 259 | if( error ){ |
262 | if( error ){ |
| 260 | switch( error ){ |
263 | switch( error ){ |
| 261 | case SERVICE_ICMP: |
264 | case SERVICE_ICMP: |
| 262 | // process error |
265 | // process error |
| 263 | // TODO remove debug dump |
266 | // TODO remove debug dump |
| 264 | // length = icmp_client_header_length( packet ); |
267 | // length = icmp_client_header_length( packet ); |
| 265 | result = icmp_client_process_packet( packet, & type, & code, NULL, NULL ); |
268 | result = icmp_client_process_packet( packet, & type, & code, NULL, NULL ); |
| 266 | if( result < 0 ){ |
269 | if( result < 0 ){ |
| 267 | return udp_release_and_return( packet, result ); |
270 | return udp_release_and_return( packet, result ); |
| 268 | } |
271 | } |
| 269 | printf( "ICMP error %d (%d) in packet %d\n", type, code, packet_get_id( packet ) ); |
272 | printf( "ICMP error %d (%d) in packet %d\n", type, code, packet_get_id( packet ) ); |
| 270 | length = ( size_t ) result; |
273 | length = ( size_t ) result; |
| 271 | if( ERROR_OCCURRED( packet_trim( packet, length, 0 ))){ |
274 | if( ERROR_OCCURRED( packet_trim( packet, length, 0 ))){ |
| 272 | return udp_release_and_return( packet, ERROR_CODE ); |
275 | return udp_release_and_return( packet, ERROR_CODE ); |
| 273 | } |
276 | } |
| 274 | break; |
277 | break; |
| 275 | default: |
278 | default: |
| 276 | return udp_release_and_return( packet, ENOTSUP ); |
279 | return udp_release_and_return( packet, ENOTSUP ); |
| 277 | } |
280 | } |
| 278 | } |
281 | } |
| 279 | // TODO process received ipopts? |
282 | // TODO process received ipopts? |
| 280 | result = ip_client_process_packet( packet, NULL, NULL, NULL, NULL, NULL ); |
283 | result = ip_client_process_packet( packet, NULL, NULL, NULL, NULL, NULL ); |
| 281 | if( result < 0 ){ |
284 | if( result < 0 ){ |
| 282 | return udp_release_and_return( packet, result ); |
285 | return udp_release_and_return( packet, result ); |
| 283 | } |
286 | } |
| 284 | offset = ( size_t ) result; |
287 | offset = ( size_t ) result; |
| 285 | 288 | ||
| 286 | length = packet_get_data_length( packet ); |
289 | length = packet_get_data_length( packet ); |
| 287 | if( length <= 0 ){ |
290 | if( length <= 0 ){ |
| 288 | return udp_release_and_return( packet, EINVAL ); |
291 | return udp_release_and_return( packet, EINVAL ); |
| 289 | } |
292 | } |
| 290 | if( length < sizeof( udp_header_t ) + offset ){ |
293 | if( length < sizeof( udp_header_t ) + offset ){ |
| 291 | return udp_release_and_return( packet, NO_DATA ); |
294 | return udp_release_and_return( packet, NO_DATA ); |
| 292 | } |
295 | } |
| 293 | data = packet_get_data( packet ); |
296 | data = packet_get_data( packet ); |
| 294 | if( ! data ){ |
297 | if( ! data ){ |
| 295 | return udp_release_and_return( packet, NO_DATA ); |
298 | return udp_release_and_return( packet, NO_DATA ); |
| 296 | } |
299 | } |
| 297 | // get udp header |
300 | // get udp header |
| 298 | header = ( udp_header_ref )( data + offset ); |
301 | header = ( udp_header_ref )( data + offset ); |
| 299 | // find the destination socket |
302 | // find the destination socket |
| 300 | socket = socket_ports_find( & udp_globals.sockets, ntohs( header->dest )); |
303 | socket = socket_ports_find( & udp_globals.sockets, ntohs( header->dest )); |
| 301 | if( ! socket ){ |
304 | if( ! socket ){ |
| 302 | udp_send_icmp_port_unreachable( packet, error ); |
305 | udp_send_icmp_port_unreachable( packet, error ); |
| 303 | return EADDRNOTAVAIL; |
306 | return EADDRNOTAVAIL; |
| 304 | } |
307 | } |
| 305 | // trim after successful processing to be able to send an ICMP error message! |
308 | // trim after successful processing to be able to send an ICMP error message! |
| 306 | ERROR_PROPAGATE( packet_trim( packet, offset, 0 )); |
309 | ERROR_PROPAGATE( packet_trim( packet, offset, 0 )); |
| 307 | // count the received packet fragments |
310 | // count the received packet fragments |
| 308 | next_packet = packet; |
311 | next_packet = packet; |
| 309 | fragments = 0; |
312 | fragments = 0; |
| 310 | total_length = ntohs( header->len ); |
313 | total_length = ntohs( header->len ); |
| - | 314 | // compute header checksum if set |
|
| - | 315 | if( header->check && ( ! error )){ |
|
| - | 316 | result = packet_get_addr( packet, ( uint8_t ** ) & src, ( uint8_t ** ) & dest ); |
|
| - | 317 | if( result <= 0 ){ |
|
| - | 318 | return udp_release_and_return( packet, result ); |
|
| - | 319 | } |
|
| - | 320 | if( ERROR_OCCURRED( ip_client_get_pseudo_header( IPPROTO_UDP, src, result, dest, result, total_length, & ip_header, & length ))){ |
|
| - | 321 | return udp_release_and_return( packet, ERROR_CODE ); |
|
| - | 322 | }else{ |
|
| - | 323 | checksum = compute_checksum( 0, ip_header, length ); |
|
| - | 324 | // the udp header checksum will be added with the first fragment later |
|
| - | 325 | free( ip_header ); |
|
| - | 326 | } |
|
| - | 327 | }else{ |
|
| - | 328 | header->check = 0; |
|
| - | 329 | checksum = 0; |
|
| - | 330 | } |
|
| 311 | do{ |
331 | do{ |
| 312 | ++ fragments; |
332 | ++ fragments; |
| 313 | length = packet_get_data_length( packet ); |
333 | length = packet_get_data_length( next_packet ); |
| 314 | if( length <= 0 ){ |
334 | if( length <= 0 ){ |
| 315 | return udp_release_and_return( packet, NO_DATA ); |
335 | return udp_release_and_return( packet, NO_DATA ); |
| 316 | } |
336 | } |
| 317 | if( total_length < length ){ |
337 | if( total_length < length ){ |
| 318 | // cut of the suffix if too long |
- | |
| 319 | if( ERROR_OCCURRED( packet_trim( next_packet, 0, length - total_length ))){ |
338 | if( ERROR_OCCURRED( packet_trim( next_packet, 0, length - total_length ))){ |
| 320 | return udp_release_and_return( packet, ERROR_CODE ); |
339 | return udp_release_and_return( packet, ERROR_CODE ); |
| 321 | } |
340 | } |
| - | 341 | // add partial checksum if set |
|
| - | 342 | if( header->check ){ |
|
| - | 343 | checksum = compute_checksum( checksum, packet_get_data( packet ), packet_get_data_length( packet )); |
|
| - | 344 | } |
|
| 322 | // relese the rest of the packet fragments |
345 | // relese the rest of the packet fragments |
| 323 | tmp_packet = pq_next( next_packet ); |
346 | tmp_packet = pq_next( next_packet ); |
| 324 | while( tmp_packet ){ |
347 | while( tmp_packet ){ |
| 325 | next_packet = pq_detach( tmp_packet ); |
348 | next_packet = pq_detach( tmp_packet ); |
| 326 | pq_release( udp_globals.net_phone, packet_get_id( tmp_packet )); |
349 | pq_release( udp_globals.net_phone, packet_get_id( tmp_packet )); |
| 327 | tmp_packet = next_packet; |
350 | tmp_packet = next_packet; |
| 328 | } |
351 | } |
| - | 352 | // exit the loop |
|
| 329 | break; |
353 | break; |
| 330 | } |
354 | } |
| 331 | total_length -= length; |
355 | total_length -= length; |
| - | 356 | // add partial checksum if set |
|
| 332 | /* if( header->header_checksum ){ |
357 | if( header->check ){ |
| - | 358 | checksum = compute_checksum( checksum, packet_get_data( packet ), packet_get_data_length( packet )); |
|
| 333 | } |
359 | } |
| 334 | */ |
- | |
| 335 | }while(( next_packet = pq_next( next_packet )) && ( total_length > 0 )); |
360 | }while(( next_packet = pq_next( next_packet )) && ( total_length > 0 )); |
| - | 361 | // check checksum |
|
| - | 362 | if( header->check ){ |
|
| - | 363 | if( flip_checksum( compact_checksum( checksum ))){ |
|
| - | 364 | // TODO checksum error ICMP? |
|
| - | 365 | // TODO remove debug dump |
|
| - | 366 | printf("udp check failed %x => %x\n", header->check, flip_checksum( compact_checksum( checksum ))); |
|
| - | 367 | return udp_release_and_return( packet, EINVAL ); |
|
| - | 368 | } |
|
| - | 369 | } |
|
| 336 | // queue the received packet |
370 | // queue the received packet |
| 337 | if( ERROR_OCCURRED( dyn_fifo_push( &( ** socket ).received, packet_get_id( packet ), SOCKET_MAX_RECEIVED_SIZE ))){ |
371 | if( ERROR_OCCURRED( dyn_fifo_push( &( ** socket ).received, packet_get_id( packet ), SOCKET_MAX_RECEIVED_SIZE ))){ |
| 338 | return udp_release_and_return( packet, ERROR_CODE ); |
372 | return udp_release_and_return( packet, ERROR_CODE ); |
| 339 | } |
373 | } |
| 340 | 374 | ||
| 341 | // notify the destination socket |
375 | // notify the destination socket |
| 342 | async_msg_2(( ** socket ).phone, NET_SOCKET_RECEIVED, ( ipcarg_t ) ( ** socket ).socket_id, ( ipcarg_t ) fragments ); |
376 | async_msg_2(( ** socket ).phone, NET_SOCKET_RECEIVED, ( ipcarg_t ) ( ** socket ).socket_id, ( ipcarg_t ) fragments ); |
| 343 | return EOK; |
377 | return EOK; |
| 344 | } |
378 | } |
| 345 | 379 | ||
| 346 | int udp_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
380 | int udp_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
| 347 | ERROR_DECLARE; |
381 | ERROR_DECLARE; |
| 348 | 382 | ||
| 349 | packet_t packet; |
383 | packet_t packet; |
| 350 | 384 | ||
| 351 | * answer_count = 0; |
385 | * answer_count = 0; |
| 352 | switch( IPC_GET_METHOD( * call )){ |
386 | switch( IPC_GET_METHOD( * call )){ |
| 353 | case NET_TL_RECEIVED: |
387 | case NET_TL_RECEIVED: |
| 354 | fibril_rwlock_read_lock( & udp_globals.lock ); |
388 | fibril_rwlock_read_lock( & udp_globals.lock ); |
| 355 | if( ! ERROR_OCCURRED( packet_translate( udp_globals.net_phone, & packet, IPC_GET_PACKET( call )))){ |
389 | if( ! ERROR_OCCURRED( packet_translate( udp_globals.net_phone, & packet, IPC_GET_PACKET( call )))){ |
| 356 | ERROR_CODE = udp_received_msg( IPC_GET_DEVICE( call ), packet, SERVICE_UDP, IPC_GET_ERROR( call )); |
390 | ERROR_CODE = udp_received_msg( IPC_GET_DEVICE( call ), packet, SERVICE_UDP, IPC_GET_ERROR( call )); |
| 357 | } |
391 | } |
| 358 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
392 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
| 359 | return ERROR_CODE; |
393 | return ERROR_CODE; |
| 360 | case IPC_M_CONNECT_TO_ME: |
394 | case IPC_M_CONNECT_TO_ME: |
| 361 | return udp_process_client_messages( callid, * call ); |
395 | return udp_process_client_messages( callid, * call ); |
| 362 | } |
396 | } |
| 363 | return ENOTSUP; |
397 | return ENOTSUP; |
| 364 | } |
398 | } |
| 365 | 399 | ||
| 366 | int udp_process_client_messages( ipc_callid_t callid, ipc_call_t call ){ |
400 | int udp_process_client_messages( ipc_callid_t callid, ipc_call_t call ){ |
| 367 | int res; |
401 | int res; |
| 368 | bool keep_on_going = true; |
402 | bool keep_on_going = true; |
| 369 | socket_cores_t local_sockets; |
403 | socket_cores_t local_sockets; |
| 370 | int app_phone = IPC_GET_PHONE( & call ); |
404 | int app_phone = IPC_GET_PHONE( & call ); |
| 371 | struct sockaddr * addr; |
405 | struct sockaddr * addr; |
| 372 | size_t addrlen; |
406 | size_t addrlen; |
| 373 | fibril_rwlock_t lock; |
407 | fibril_rwlock_t lock; |
| 374 | ipc_call_t answer; |
408 | ipc_call_t answer; |
| 375 | int answer_count; |
409 | int answer_count; |
| 376 | 410 | ||
| 377 | /* |
411 | /* |
| 378 | * Accept the connection |
412 | * Accept the connection |
| 379 | * - Answer the first IPC_M_CONNECT_ME_TO call. |
413 | * - Answer the first IPC_M_CONNECT_ME_TO call. |
| 380 | */ |
414 | */ |
| 381 | ipc_answer_0( callid, EOK ); |
415 | ipc_answer_0( callid, EOK ); |
| 382 | 416 | ||
| 383 | socket_cores_initialize( & local_sockets ); |
417 | socket_cores_initialize( & local_sockets ); |
| 384 | fibril_rwlock_initialize( & lock ); |
418 | fibril_rwlock_initialize( & lock ); |
| 385 | 419 | ||
| 386 | while( keep_on_going ){ |
420 | while( keep_on_going ){ |
| 387 | // refresh data |
421 | // refresh data |
| 388 | refresh_answer( & answer, & answer_count ); |
422 | refresh_answer( & answer, & answer_count ); |
| 389 | 423 | ||
| 390 | callid = async_get_call( & call ); |
424 | callid = async_get_call( & call ); |
| 391 | // printf( "message %d\n", IPC_GET_METHOD( * call )); |
425 | // printf( "message %d\n", IPC_GET_METHOD( * call )); |
| 392 | 426 | ||
| 393 | switch( IPC_GET_METHOD( call )){ |
427 | switch( IPC_GET_METHOD( call )){ |
| 394 | case IPC_M_PHONE_HUNGUP: |
428 | case IPC_M_PHONE_HUNGUP: |
| 395 | keep_on_going = false; |
429 | keep_on_going = false; |
| 396 | res = EOK; |
430 | res = EOK; |
| 397 | break; |
431 | break; |
| 398 | case NET_SOCKET: |
432 | case NET_SOCKET: |
| 399 | fibril_rwlock_write_lock( & lock ); |
433 | fibril_rwlock_write_lock( & lock ); |
| 400 | res = socket_create( & local_sockets, app_phone, SOCKET_SET_SOCKET_ID( answer )); |
434 | res = socket_create( & local_sockets, app_phone, SOCKET_SET_SOCKET_ID( answer )); |
| 401 | fibril_rwlock_write_unlock( & lock ); |
435 | fibril_rwlock_write_unlock( & lock ); |
| 402 | * SOCKET_SET_HEADER_SIZE( answer ) = sizeof( udp_header_t ); |
436 | * SOCKET_SET_HEADER_SIZE( answer ) = sizeof( udp_header_t ); |
| 403 | * SOCKET_SET_DATA_FRAGMENT_SIZE( answer ) = MAX_UDP_FRAGMENT_SIZE; |
437 | * SOCKET_SET_DATA_FRAGMENT_SIZE( answer ) = MAX_UDP_FRAGMENT_SIZE; |
| 404 | answer_count = 3; |
438 | answer_count = 3; |
| 405 | break; |
439 | break; |
| 406 | case NET_SOCKET_BIND: |
440 | case NET_SOCKET_BIND: |
| 407 | res = socket_read_data(( void ** ) & addr, & addrlen ); |
441 | res = data_receive(( void ** ) & addr, & addrlen ); |
| 408 | if( res == EOK ){ |
442 | if( res == EOK ){ |
| 409 | fibril_rwlock_write_lock( & lock ); |
443 | fibril_rwlock_write_lock( & lock ); |
| 410 | fibril_rwlock_write_lock( & udp_globals.lock ); |
444 | fibril_rwlock_write_lock( & udp_globals.lock ); |
| 411 | 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 ); |
445 | 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 ); |
| 412 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
446 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
| 413 | fibril_rwlock_write_unlock( & lock ); |
447 | fibril_rwlock_write_unlock( & lock ); |
| 414 | free( addr ); |
448 | free( addr ); |
| 415 | } |
449 | } |
| 416 | break; |
450 | break; |
| 417 | case NET_SOCKET_SENDTO: |
451 | case NET_SOCKET_SENDTO: |
| 418 | res = socket_read_data(( void ** ) & addr, & addrlen ); |
452 | res = data_receive(( void ** ) & addr, & addrlen ); |
| 419 | if( res == EOK ){ |
453 | if( res == EOK ){ |
| 420 | fibril_rwlock_read_lock( & lock ); |
454 | fibril_rwlock_read_lock( & lock ); |
| 421 | fibril_rwlock_read_lock( & udp_globals.lock ); |
455 | fibril_rwlock_read_lock( & udp_globals.lock ); |
| 422 | res = udp_sendto_message( & local_sockets, SOCKET_GET_SOCKET_ID( call ), addr, addrlen, SOCKET_GET_DATA_FRAGMENTS( call ), SOCKET_GET_FLAGS( call )); |
456 | res = udp_sendto_message( & local_sockets, SOCKET_GET_SOCKET_ID( call ), addr, addrlen, SOCKET_GET_DATA_FRAGMENTS( call ), SOCKET_GET_FLAGS( call )); |
| 423 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
457 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
| 424 | fibril_rwlock_read_unlock( & lock ); |
458 | fibril_rwlock_read_unlock( & lock ); |
| 425 | free( addr ); |
459 | free( addr ); |
| 426 | } |
460 | } |
| 427 | break; |
461 | break; |
| 428 | case NET_SOCKET_RECVFROM: |
462 | case NET_SOCKET_RECVFROM: |
| 429 | fibril_rwlock_read_lock( & lock ); |
463 | fibril_rwlock_read_lock( & lock ); |
| 430 | fibril_rwlock_read_lock( & udp_globals.lock ); |
464 | fibril_rwlock_read_lock( & udp_globals.lock ); |
| 431 | res = udp_recvfrom_message( & local_sockets, SOCKET_GET_SOCKET_ID( call ), SOCKET_GET_FLAGS( call ), & addrlen ); |
465 | res = udp_recvfrom_message( & local_sockets, SOCKET_GET_SOCKET_ID( call ), SOCKET_GET_FLAGS( call ), & addrlen ); |
| 432 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
466 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
| 433 | fibril_rwlock_read_unlock( & lock ); |
467 | fibril_rwlock_read_unlock( & lock ); |
| 434 | if( res > 0 ){ |
468 | if( res > 0 ){ |
| 435 | * SOCKET_SET_READ_DATA_LENGTH( answer ) = res; |
469 | * SOCKET_SET_READ_DATA_LENGTH( answer ) = res; |
| 436 | * SOCKET_SET_ADDRESS_LENGTH( answer ) = addrlen; |
470 | * SOCKET_SET_ADDRESS_LENGTH( answer ) = addrlen; |
| 437 | answer_count = 2; |
471 | answer_count = 2; |
| 438 | res = EOK; |
472 | res = EOK; |
| 439 | } |
473 | } |
| 440 | break; |
474 | break; |
| 441 | case NET_SOCKET_CLOSE: |
475 | case NET_SOCKET_CLOSE: |
| 442 | fibril_rwlock_write_lock( & lock ); |
476 | fibril_rwlock_write_lock( & lock ); |
| 443 | fibril_rwlock_write_lock( & udp_globals.lock ); |
477 | fibril_rwlock_write_lock( & udp_globals.lock ); |
| 444 | res = socket_destroy( udp_globals.net_phone, SOCKET_GET_SOCKET_ID( call ), & local_sockets, & udp_globals.sockets ); |
478 | res = socket_destroy( udp_globals.net_phone, SOCKET_GET_SOCKET_ID( call ), & local_sockets, & udp_globals.sockets ); |
| 445 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
479 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
| 446 | fibril_rwlock_write_unlock( & lock ); |
480 | fibril_rwlock_write_unlock( & lock ); |
| 447 | break; |
481 | break; |
| 448 | case NET_SOCKET_GETSOCKOPT: |
482 | case NET_SOCKET_GETSOCKOPT: |
| 449 | case NET_SOCKET_SETSOCKOPT: |
483 | case NET_SOCKET_SETSOCKOPT: |
| 450 | default: |
484 | default: |
| 451 | res = ENOTSUP; |
485 | res = ENOTSUP; |
| 452 | break; |
486 | break; |
| 453 | } |
487 | } |
| 454 | 488 | ||
| 455 | // printf( "res = %d\n", res ); |
489 | // printf( "res = %d\n", res ); |
| 456 | 490 | ||
| 457 | answer_call( callid, res, & answer, answer_count ); |
491 | answer_call( callid, res, & answer, answer_count ); |
| 458 | } |
492 | } |
| 459 | 493 | ||
| 460 | socket_cores_destroy( & local_sockets ); |
494 | socket_cores_destroy( & local_sockets ); |
| 461 | 495 | ||
| 462 | return EOK; |
496 | return EOK; |
| 463 | } |
497 | } |
| 464 | 498 | ||
| 465 | int udp_sendto_message( socket_cores_ref local_sockets, int socket_id, const struct sockaddr * addr, socklen_t addrlen, int fragments, int flags ){ |
499 | int udp_sendto_message( socket_cores_ref local_sockets, int socket_id, const struct sockaddr * addr, socklen_t addrlen, int fragments, int flags ){ |
| 466 | ERROR_DECLARE; |
500 | ERROR_DECLARE; |
| 467 | 501 | ||
| 468 | socket_core_ref socket; |
502 | socket_core_ref socket; |
| 469 | struct sockaddr_in * address_in; |
503 | struct sockaddr_in * address_in; |
| 470 | struct sockaddr_in6 * address_in6; |
504 | struct sockaddr_in6 * address_in6; |
| 471 | packet_t packet; |
505 | packet_t packet; |
| 472 | packet_t next_packet; |
506 | packet_t next_packet; |
| 473 | udp_header_ref header; |
507 | udp_header_ref header; |
| 474 | int index; |
508 | int index; |
| 475 | size_t total_length; |
509 | size_t total_length; |
| 476 | int result; |
510 | int result; |
| 477 | uint16_t dest_port; |
511 | uint16_t dest_port; |
| - | 512 | uint32_t checksum; |
|
| - | 513 | ip_pseudo_header_ref ip_header; |
|
| - | 514 | size_t headerlen; |
|
| - | 515 | device_id_t device_id; |
|
| 478 | 516 | ||
| 479 | if( addrlen < sizeof( struct sockaddr )) return EINVAL; |
517 | if( addrlen < sizeof( struct sockaddr )) return EINVAL; |
| 480 | switch( addr->sa_family ){ |
518 | switch( addr->sa_family ){ |
| 481 | case AF_INET: |
519 | case AF_INET: |
| 482 | if( addrlen != sizeof( struct sockaddr_in )) return EINVAL; |
520 | if( addrlen != sizeof( struct sockaddr_in )) return EINVAL; |
| 483 | address_in = ( struct sockaddr_in * ) addr; |
521 | address_in = ( struct sockaddr_in * ) addr; |
| 484 | dest_port = address_in->sin_port; |
522 | dest_port = address_in->sin_port; |
| 485 | break; |
523 | break; |
| 486 | case AF_INET6: |
524 | case AF_INET6: |
| 487 | if( addrlen != sizeof( struct sockaddr_in6 )) return EINVAL; |
525 | if( addrlen != sizeof( struct sockaddr_in6 )) return EINVAL; |
| 488 | address_in6 = ( struct sockaddr_in6 * ) addr; |
526 | address_in6 = ( struct sockaddr_in6 * ) addr; |
| 489 | dest_port = address_in6->sin6_port; |
527 | dest_port = address_in6->sin6_port; |
| 490 | break; |
528 | break; |
| 491 | default: |
529 | default: |
| 492 | return EAFNOSUPPORT; |
530 | return EAFNOSUPPORT; |
| 493 | } |
531 | } |
| 494 | 532 | ||
| 495 | socket = socket_cores_find( local_sockets, socket_id ); |
533 | socket = socket_cores_find( local_sockets, socket_id ); |
| 496 | if( ! socket ) return ENOTSOCK; |
534 | if( ! socket ) return ENOTSOCK; |
| 497 | 535 | ||
| 498 | // bind the socket to a random free port if not bound |
536 | // bind the socket to a random free port if not bound |
| 499 | while( socket->port <= 0 ){ |
537 | while( socket->port <= 0 ){ |
| 500 | // try to find a free port |
538 | // try to find a free port |
| 501 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
539 | fibril_rwlock_read_unlock( & udp_globals.lock ); |
| 502 | fibril_rwlock_write_lock( & udp_globals.lock ); |
540 | fibril_rwlock_write_lock( & udp_globals.lock ); |
| 503 | if( socket->port <= 0 ){ |
541 | if( socket->port <= 0 ){ |
| 504 | ERROR_PROPAGATE( socket_bind_free_port( & udp_globals.sockets, socket, UDP_FREE_PORTS_START, UDP_FREE_PORTS_END, udp_globals.last_used_port )); |
542 | ERROR_PROPAGATE( socket_bind_free_port( & udp_globals.sockets, socket, UDP_FREE_PORTS_START, UDP_FREE_PORTS_END, udp_globals.last_used_port )); |
| 505 | // set the next port as the search starting port number |
543 | // set the next port as the search starting port number |
| 506 | udp_globals.last_used_port = socket->port; |
544 | udp_globals.last_used_port = socket->port; |
| 507 | } |
545 | } |
| 508 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
546 | fibril_rwlock_write_unlock( & udp_globals.lock ); |
| 509 | fibril_rwlock_read_lock( & udp_globals.lock ); |
547 | fibril_rwlock_read_lock( & udp_globals.lock ); |
| 510 | } |
548 | } |
| 511 | 549 | ||
| 512 | // TODO do not ask all the time |
550 | // TODO do not ask all the time |
| 513 | ERROR_PROPAGATE( ip_packet_size_req( udp_globals.ip_phone, -1, & udp_globals.addr_len, & udp_globals.prefix, & udp_globals.content, & udp_globals.suffix )); |
551 | ERROR_PROPAGATE( ip_packet_size_req( udp_globals.ip_phone, socket->device_id, & udp_globals.addr_len, & udp_globals.prefix, & udp_globals.content, & udp_globals.suffix )); |
| 514 | 552 | ||
| 515 | // read the first packet fragment |
553 | // read the first packet fragment |
| 516 | result = socket_read_packet_data( & packet, sizeof( udp_header_t ), addr, addrlen ); |
554 | result = socket_read_packet_data( & packet, sizeof( udp_header_t ), addr, addrlen ); |
| 517 | if( result < 0 ) return result; |
555 | if( result < 0 ) return result; |
| 518 | total_length = ( size_t ) result; |
556 | total_length = ( size_t ) result; |
| - | 557 | if( udp_globals.checksum_computing ){ |
|
| - | 558 | checksum = compute_checksum( 0, packet_get_data( packet ), packet_get_data_length( packet )); |
|
| - | 559 | }else{ |
|
| - | 560 | checksum = 0; |
|
| - | 561 | } |
|
| 519 | // prefix the udp header |
562 | // prefix the udp header |
| 520 | header = PACKET_PREFIX( packet, udp_header_t ); |
563 | header = PACKET_PREFIX( packet, udp_header_t ); |
| 521 | if( ! header ){ |
564 | if( ! header ){ |
| 522 | pq_release( udp_globals.net_phone, packet_get_id( packet )); |
565 | return udp_release_and_return( packet, ENOMEM ); |
| 523 | return ENOMEM; |
- | |
| 524 | } |
566 | } |
| - | 567 | bzero( header, sizeof( * header )); |
|
| 525 | // read the rest of the packet fragments |
568 | // read the rest of the packet fragments |
| 526 | for( index = 1; index < fragments; ++ index ){ |
569 | for( index = 1; index < fragments; ++ index ){ |
| 527 | result = socket_read_packet_data( & next_packet, 0, addr, addrlen ); |
570 | result = socket_read_packet_data( & next_packet, 0, addr, addrlen ); |
| 528 | if( result < 0 ){ |
571 | if( result < 0 ){ |
| 529 | return udp_release_and_return( packet, result ); |
572 | return udp_release_and_return( packet, result ); |
| 530 | } |
573 | } |
| 531 | packet = pq_add( packet, next_packet, index, 0 ); |
574 | packet = pq_add( packet, next_packet, index, 0 ); |
| 532 | total_length += ( size_t ) result; |
575 | total_length += ( size_t ) result; |
| - | 576 | if( udp_globals.checksum_computing ){ |
|
| - | 577 | checksum = compute_checksum( checksum, packet_get_data( next_packet ), packet_get_data_length( next_packet )); |
|
| - | 578 | } |
|
| 533 | } |
579 | } |
| 534 | // set the udp header |
580 | // set the udp header |
| 535 | header->source = htons( socket->port ); |
581 | header->source = htons( socket->port ); |
| 536 | header->dest = htons( dest_port ); |
582 | header->dest = htons( dest_port ); |
| 537 | header->len = htons( total_length + sizeof( udp_header_t )); |
583 | header->len = htons( total_length + sizeof( udp_header_t )); |
| 538 | // TODO my ip address for the pseudo header checksum |
- | |
| 539 | header->check = 0; |
584 | header->check = 0; |
| - | 585 | if( udp_globals.checksum_computing ){ |
|
| - | 586 | if( ERROR_OCCURRED( ip_get_route_req( udp_globals.ip_phone, IPPROTO_UDP, addr, addrlen, & device_id, & ip_header, & headerlen ))){ |
|
| - | 587 | return udp_release_and_return( packet, ERROR_CODE ); |
|
| - | 588 | } |
|
| - | 589 | if( ERROR_OCCURRED( ip_client_set_pseudo_header_data_length( ip_header, headerlen, total_length + sizeof( udp_header_t )))){ |
|
| - | 590 | free( ip_header ); |
|
| - | 591 | return udp_release_and_return( packet, ERROR_CODE ); |
|
| - | 592 | } |
|
| - | 593 | /*// TODO remove debug dump: |
|
| - | 594 | uint8_t * data; |
|
| - | 595 | data = ip_header; |
|
| - | 596 | printf( "ip_header:\tlength\t= %d\n\tdata\t= %.2hhX %.2hhX %.2hhX %.2hhX:%.2hhX %.2hhX %.2hhX %.2hhX:%.2hhX %.2hhX %.2hhX %.2hhX\n", headerlen, data[ 0 ], data[ 1 ], data[ 2 ], data[ 3 ], data[ 4 ], data[ 5 ], data[ 6 ], data[ 7 ], data[ 8 ], data[ 9 ], data[ 10 ], data[ 11 ] ); |
|
| - | 597 | */ checksum = compute_checksum( checksum, ip_header, headerlen ); |
|
| - | 598 | checksum = compute_checksum( checksum, ( uint8_t * ) header, sizeof( * header )); |
|
| - | 599 | header->check = htons( flip_checksum( compact_checksum( checksum ))); |
|
| - | 600 | free( ip_header ); |
|
| - | 601 | }else{ |
|
| - | 602 | device_id = socket->device_id; |
|
| - | 603 | } |
|
| 540 | // prepare the first packet fragment |
604 | // prepare the first packet fragment |
| 541 | if( ERROR_OCCURRED( ip_client_prepare_packet( packet, IPPROTO_UDP, 0, 0, 0, 0 ))){ |
605 | if( ERROR_OCCURRED( ip_client_prepare_packet( packet, IPPROTO_UDP, 0, 0, 0, 0 ))){ |
| 542 | pq_release( udp_globals.net_phone, packet_get_id( packet )); |
606 | return udp_release_and_return( packet, ERROR_CODE ); |
| 543 | return ERROR_CODE; |
- | |
| 544 | } |
607 | } |
| 545 | // send the packet |
608 | // send the packet |
| 546 | return ip_send_msg( udp_globals.ip_phone, socket->device_id, packet, SERVICE_UDP, 0 ); |
609 | return ip_send_msg( udp_globals.ip_phone, device_id, packet, SERVICE_UDP, 0 ); |
| 547 | } |
610 | } |
| 548 | 611 | ||
| 549 | int udp_recvfrom_message( socket_cores_ref local_sockets, int socket_id, int flags, size_t * addrlen ){ |
612 | int udp_recvfrom_message( socket_cores_ref local_sockets, int socket_id, int flags, size_t * addrlen ){ |
| 550 | ERROR_DECLARE; |
613 | ERROR_DECLARE; |
| 551 | 614 | ||
| 552 | socket_core_ref socket; |
615 | socket_core_ref socket; |
| 553 | int packet_id; |
616 | int packet_id; |
| 554 | packet_t packet; |
617 | packet_t packet; |
| 555 | udp_header_ref header; |
618 | udp_header_ref header; |
| 556 | struct sockaddr * addr; |
619 | struct sockaddr * addr; |
| 557 | size_t length; |
620 | size_t length; |
| 558 | packet_t next_packet; |
621 | packet_t next_packet; |
| 559 | uint8_t * data; |
622 | uint8_t * data; |
| 560 | size_t fragments; |
623 | size_t fragments; |
| 561 | size_t * lengths; |
624 | size_t * lengths; |
| 562 | size_t index; |
625 | size_t index; |
| 563 | int result; |
626 | int result; |
| 564 | 627 | ||
| 565 | // find the socket |
628 | // find the socket |
| 566 | socket = socket_cores_find( local_sockets, socket_id ); |
629 | socket = socket_cores_find( local_sockets, socket_id ); |
| 567 | if( ! socket ) return ENOTSOCK; |
630 | if( ! socket ) return ENOTSOCK; |
| 568 | // get the next received packet |
631 | // get the next received packet |
| 569 | packet_id = dyn_fifo_value( & socket->received ); |
632 | packet_id = dyn_fifo_value( & socket->received ); |
| 570 | if( packet_id < 0 ) return NO_DATA; |
633 | if( packet_id < 0 ) return NO_DATA; |
| 571 | ERROR_PROPAGATE( packet_translate( udp_globals.net_phone, & packet, packet_id )); |
634 | ERROR_PROPAGATE( packet_translate( udp_globals.net_phone, & packet, packet_id )); |
| 572 | // get udp header |
635 | // get udp header |
| 573 | data = packet_get_data( packet ); |
636 | data = packet_get_data( packet ); |
| 574 | if( ! data ){ |
637 | if( ! data ){ |
| 575 | pq_release( udp_globals.net_phone, packet_id ); |
638 | pq_release( udp_globals.net_phone, packet_id ); |
| 576 | return NO_DATA; |
639 | return NO_DATA; |
| 577 | } |
640 | } |
| 578 | header = ( udp_header_ref ) data; |
641 | header = ( udp_header_ref ) data; |
| 579 | 642 | ||
| 580 | // set the source address port |
643 | // set the source address port |
| 581 | result = packet_get_addr( packet, ( uint8_t ** ) & addr, NULL ); |
644 | result = packet_get_addr( packet, ( uint8_t ** ) & addr, NULL ); |
| 582 | if( ERROR_OCCURRED( udp_set_address_port( addr, result, ntohs( header->source )))){ |
645 | if( ERROR_OCCURRED( udp_set_address_port( addr, result, ntohs( header->source )))){ |
| 583 | pq_release( udp_globals.net_phone, packet_id ); |
646 | pq_release( udp_globals.net_phone, packet_id ); |
| 584 | return ERROR_CODE; |
647 | return ERROR_CODE; |
| 585 | } |
648 | } |
| 586 | * addrlen = ( size_t ) result; |
649 | * addrlen = ( size_t ) result; |
| 587 | // send the source address |
650 | // send the source address |
| 588 | ERROR_PROPAGATE( socket_write_data( addr, * addrlen )); |
651 | ERROR_PROPAGATE( data_reply( addr, * addrlen )); |
| 589 | 652 | ||
| 590 | next_packet = pq_next( packet ); |
653 | next_packet = pq_next( packet ); |
| 591 | if( ! next_packet ){ |
654 | if( ! next_packet ){ |
| 592 | // write all if only one fragment |
655 | // 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 ))); |
656 | ERROR_PROPAGATE( data_reply( data + sizeof( udp_header_t ), packet_get_data_length( packet ) - sizeof( udp_header_t ))); |
| 594 | // store the total length |
657 | // store the total length |
| 595 | length = packet_get_data_length( packet ) - sizeof( udp_header_t ); |
658 | length = packet_get_data_length( packet ) - sizeof( udp_header_t ); |
| 596 | }else{ |
659 | }else{ |
| 597 | // count the packet fragments |
660 | // count the packet fragments |
| 598 | fragments = 1; |
661 | fragments = 1; |
| 599 | next_packet = pq_next( packet ); |
662 | next_packet = pq_next( packet ); |
| 600 | while(( next_packet = pq_next( next_packet ))){ |
663 | while(( next_packet = pq_next( next_packet ))){ |
| 601 | ++ fragments; |
664 | ++ fragments; |
| 602 | } |
665 | } |
| 603 | // compute and store the fragment lengths |
666 | // compute and store the fragment lengths |
| 604 | lengths = ( size_t * ) malloc( sizeof( size_t ) * fragments + sizeof( size_t )); |
667 | lengths = ( size_t * ) malloc( sizeof( size_t ) * fragments + sizeof( size_t )); |
| 605 | if( ! lengths ) return ENOMEM; |
668 | if( ! lengths ) return ENOMEM; |
| 606 | lengths[ 0 ] = packet_get_data_length( packet ) - sizeof( udp_header_t ); |
669 | lengths[ 0 ] = packet_get_data_length( packet ) - sizeof( udp_header_t ); |
| 607 | lengths[ fragments ] = lengths[ 0 ]; |
670 | lengths[ fragments ] = lengths[ 0 ]; |
| 608 | next_packet = pq_next( packet ); |
671 | next_packet = pq_next( packet ); |
| 609 | for( index = 1; index < fragments; ++ index ){ |
672 | for( index = 1; index < fragments; ++ index ){ |
| 610 | lengths[ index ] = packet_get_data_length( next_packet ); |
673 | lengths[ index ] = packet_get_data_length( next_packet ); |
| 611 | lengths[ fragments ] += lengths[ index ]; |
674 | lengths[ fragments ] += lengths[ index ]; |
| 612 | next_packet = pq_next( packet ); |
675 | next_packet = pq_next( packet ); |
| 613 | }while( next_packet ); |
676 | }while( next_packet ); |
| 614 | // write the fragment lengths |
677 | // write the fragment lengths |
| 615 | ERROR_PROPAGATE( socket_write_data( lengths, sizeof( int ) * ( fragments + 1 ))); |
678 | ERROR_PROPAGATE( data_reply( lengths, sizeof( int ) * ( fragments + 1 ))); |
| 616 | // write the first fragment |
679 | // write the first fragment |
| 617 | ERROR_PROPAGATE( socket_write_data( data + sizeof( udp_header_t ), lengths[ 0 ] )); |
680 | ERROR_PROPAGATE( data_reply( data + sizeof( udp_header_t ), lengths[ 0 ] )); |
| 618 | next_packet = pq_next( packet ); |
681 | next_packet = pq_next( packet ); |
| 619 | // write the rest of the fragments |
682 | // write the rest of the fragments |
| 620 | for( index = 1; index < fragments; ++ index ){ |
683 | for( index = 1; index < fragments; ++ index ){ |
| 621 | ERROR_PROPAGATE( socket_write_data( packet_get_data( next_packet ), lengths[ index ] )); |
684 | ERROR_PROPAGATE( data_reply( packet_get_data( next_packet ), lengths[ index ] )); |
| 622 | next_packet = pq_next( packet ); |
685 | next_packet = pq_next( packet ); |
| 623 | }while( next_packet ); |
686 | }while( next_packet ); |
| 624 | // store the total length |
687 | // store the total length |
| 625 | length = lengths[ fragments ]; |
688 | length = lengths[ fragments ]; |
| 626 | free( lengths ); |
689 | free( lengths ); |
| 627 | } |
690 | } |
| 628 | // release the packet |
691 | // release the packet |
| 629 | dyn_fifo_pop( & socket->received ); |
692 | dyn_fifo_pop( & socket->received ); |
| 630 | pq_release( udp_globals.net_phone, packet_get_id( packet )); |
693 | pq_release( udp_globals.net_phone, packet_get_id( packet )); |
| 631 | // return the total length |
694 | // return the total length |
| 632 | return ( int ) length; |
695 | return ( int ) length; |
| 633 | } |
696 | } |
| 634 | 697 | ||
| 635 | int socket_write_data( void * data, size_t data_length ){ |
- | |
| 636 | size_t length; |
- | |
| 637 | ipc_callid_t callid; |
- | |
| 638 | - | ||
| 639 | if(( ! ipc_data_read_receive( & callid, & length )) |
- | |
| 640 | || ( length < data_length )){ |
- | |
| 641 | return EINVAL; |
- | |
| 642 | } |
- | |
| 643 | return ipc_data_read_finalize( callid, data, data_length ); |
- | |
| 644 | } |
- | |
| 645 | - | ||
| 646 | int socket_read_data( void ** data, size_t * length ){ |
- | |
| 647 | ERROR_DECLARE; |
- | |
| 648 | - | ||
| 649 | ipc_callid_t callid; |
- | |
| 650 | - | ||
| 651 | if( !( data && length )) return EBADMEM; |
- | |
| 652 | if( ! ipc_data_write_receive( & callid, length )) return EINVAL; |
- | |
| 653 | * data = malloc( * length ); |
- | |
| 654 | if( !( * data )) return ENOMEM; |
- | |
| 655 | if( ERROR_OCCURRED( ipc_data_write_finalize( callid, * data, * length ))){ |
- | |
| 656 | free( data ); |
- | |
| 657 | return ERROR_CODE; |
- | |
| 658 | } |
- | |
| 659 | return EOK; |
- | |
| 660 | } |
- | |
| 661 | - | ||
| 662 | int socket_read_packet_data( packet_ref packet, size_t prefix, const struct sockaddr * addr, socklen_t addrlen ){ |
698 | int socket_read_packet_data( packet_ref packet, size_t prefix, const struct sockaddr * addr, socklen_t addrlen ){ |
| 663 | ERROR_DECLARE; |
699 | ERROR_DECLARE; |
| 664 | 700 | ||
| 665 | ipc_callid_t callid; |
701 | ipc_callid_t callid; |
| 666 | size_t length; |
702 | size_t length; |
| 667 | void * data; |
703 | void * data; |
| 668 | 704 | ||
| 669 | // get the data length |
705 | // get the data length |
| 670 | if( ! ipc_data_write_receive( & callid, & length )) return EINVAL; |
706 | if( ! ipc_data_write_receive( & callid, & length )) return EINVAL; |
| 671 | // get a new packet |
707 | // 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 ); |
708 | * 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; |
709 | if( ! packet ) return ENOMEM; |
| 674 | // allocate space in the packet |
710 | // allocate space in the packet |
| 675 | data = packet_suffix( * packet, length ); |
711 | data = packet_suffix( * packet, length ); |
| 676 | if( ! data ){ |
712 | if( ! data ){ |
| 677 | pq_release( udp_globals.net_phone, packet_get_id( * packet )); |
713 | return udp_release_and_return( * packet, ENOMEM ); |
| 678 | return ENOMEM; |
- | |
| 679 | } |
714 | } |
| 680 | // read the data into the packet |
715 | // read the data into the packet |
| 681 | if( ERROR_OCCURRED( ipc_data_write_finalize( callid, data, length )) |
716 | if( ERROR_OCCURRED( ipc_data_write_finalize( callid, data, length )) |
| 682 | // set the packet destination address |
717 | // set the packet destination address |
| 683 | || ERROR_OCCURRED( packet_set_addr( * packet, NULL, ( uint8_t * ) addr, addrlen ))){ |
718 | || ERROR_OCCURRED( packet_set_addr( * packet, NULL, ( uint8_t * ) addr, addrlen ))){ |
| 684 | pq_release( udp_globals.net_phone, packet_get_id( * packet )); |
719 | return udp_release_and_return( * packet, ERROR_CODE ); |
| 685 | return ERROR_CODE; |
- | |
| 686 | } |
720 | } |
| 687 | return ( int ) length; |
721 | return ( int ) length; |
| 688 | } |
722 | } |
| 689 | 723 | ||
| 690 | int udp_release_and_return( packet_t packet, int result ){ |
724 | int udp_release_and_return( packet_t packet, int result ){ |
| 691 | pq_release( udp_globals.net_phone, packet_get_id( packet )); |
725 | pq_release( udp_globals.net_phone, packet_get_id( packet )); |
| 692 | return result; |
726 | return result; |
| 693 | } |
727 | } |
| 694 | 728 | ||
| 695 | void udp_send_icmp_port_unreachable( packet_t packet, services_t error ){ |
729 | void udp_send_icmp_port_unreachable( packet_t packet, services_t error ){ |
| 696 | packet_t next; |
730 | packet_t next; |
| 697 | uint8_t * src; |
731 | uint8_t * src; |
| 698 | int length; |
732 | int length; |
| 699 | 733 | ||
| 700 | // detach the first packet and release the others |
734 | // detach the first packet and release the others |
| 701 | next = pq_detach( packet ); |
735 | next = pq_detach( packet ); |
| 702 | if( next ){ |
736 | if( next ){ |
| 703 | pq_release( udp_globals.net_phone, packet_get_id( next )); |
737 | pq_release( udp_globals.net_phone, packet_get_id( next )); |
| 704 | } |
738 | } |
| 705 | length = packet_get_addr( packet, & src, NULL ); |
739 | length = packet_get_addr( packet, & src, NULL ); |
| 706 | if(( length > 0 ) |
740 | if(( length > 0 ) |
| 707 | && ( ! error ) |
741 | && ( ! error ) |
| 708 | && ( udp_globals.icmp_phone >= 0 ) |
742 | && ( udp_globals.icmp_phone >= 0 ) |
| 709 | // set both addresses to the source one (avoids the source address deletion before setting the destination one) |
743 | // 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 )){ |
744 | && ( packet_set_addr( packet, src, src, ( size_t ) length ) == EOK )){ |
| 711 | icmp_destination_unreachable_msg( udp_globals.icmp_phone, ICMP_PORT_UNREACH, 0, packet ); |
745 | icmp_destination_unreachable_msg( udp_globals.icmp_phone, ICMP_PORT_UNREACH, 0, packet ); |
| 712 | }else{ |
746 | }else{ |
| 713 | udp_release_and_return( packet, EINVAL ); |
747 | udp_release_and_return( packet, EINVAL ); |
| 714 | } |
748 | } |
| 715 | } |
749 | } |
| 716 | 750 | ||
| 717 | int udp_set_address_port( struct sockaddr * addr, int addrlen, uint16_t port ){ |
751 | int udp_set_address_port( struct sockaddr * addr, int addrlen, uint16_t port ){ |
| 718 | struct sockaddr_in * address_in; |
752 | struct sockaddr_in * address_in; |
| 719 | struct sockaddr_in6 * address_in6; |
753 | struct sockaddr_in6 * address_in6; |
| 720 | size_t length; |
754 | size_t length; |
| 721 | 755 | ||
| 722 | if( addrlen < 0 ) return EINVAL; |
756 | if( addrlen < 0 ) return EINVAL; |
| 723 | length = ( size_t ) addrlen; |
757 | length = ( size_t ) addrlen; |
| 724 | if( length < sizeof( struct sockaddr )) return EINVAL; |
758 | if( length < sizeof( struct sockaddr )) return EINVAL; |
| 725 | switch( addr->sa_family ){ |
759 | switch( addr->sa_family ){ |
| 726 | case AF_INET: |
760 | case AF_INET: |
| 727 | if( length != sizeof( struct sockaddr_in )) return EINVAL; |
761 | if( length != sizeof( struct sockaddr_in )) return EINVAL; |
| 728 | address_in = ( struct sockaddr_in * ) addr; |
762 | address_in = ( struct sockaddr_in * ) addr; |
| 729 | address_in->sin_port = port; |
763 | address_in->sin_port = port; |
| 730 | return EOK; |
764 | return EOK; |
| 731 | case AF_INET6: |
765 | case AF_INET6: |
| 732 | if( length != sizeof( struct sockaddr_in6 )) return EINVAL; |
766 | if( length != sizeof( struct sockaddr_in6 )) return EINVAL; |
| 733 | address_in6 = ( struct sockaddr_in6 * ) addr; |
767 | address_in6 = ( struct sockaddr_in6 * ) addr; |
| 734 | address_in6->sin6_port = port; |
768 | address_in6->sin6_port = port; |
| 735 | return EOK; |
769 | return EOK; |
| 736 | default: |
770 | default: |
| 737 | return EAFNOSUPPORT; |
771 | return EAFNOSUPPORT; |
| 738 | } |
772 | } |
| 739 | } |
773 | } |
| 740 | 774 | ||
| 741 | /** @} |
775 | /** @} |
| 742 | */ |
776 | */ |
| 743 | 777 | ||