/branches/network/uspace/srv/net/il/icmp/icmp_module.h |
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0,0 → 1,66 |
/* |
* Copyright (c) 2008 Lukas Mejdrech |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup icmp |
* @{ |
*/ |
/** @file |
* ICMP module functions. |
* The functions are used as ICMP module entry points. |
*/ |
#ifndef __NET_ICMP_MODULE_H__ |
#define __NET_ICMP_MODULE_H__ |
#include <async.h> |
#include <ipc/ipc.h> |
/** Initializes the ICMP module. |
* @param client_connection The client connection processing function. The module skeleton propagates its own one. Input parameter. |
* @returns EOK on success. |
* @returns ENOMEM if there is not enough memory left. |
*/ |
int icmp_initialize( async_client_conn_t client_connection ); |
/** Processes the ICMP message. |
* @param callid The message identifier. Input parameter. |
* @param call The message parameters. Input parameter. |
* @param answer The message answer parameters. Output parameter. |
* @param answer_count The last parameter for the actual answer in the answer parameter. Output parameter. |
* @returns EOK on success. |
* @returns ENOTSUP if the message is not known. |
* @see icmp_interface.h |
* @see IS_NET_ICMP_MESSAGE() |
*/ |
int icmp_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ); |
#endif |
/** @} |
*/ |
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/branches/network/uspace/srv/net/il/icmp/icmp_remote.c |
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0,0 → 1,83 |
/* |
* Copyright (c) 2009 Lukas Mejdrech |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup icmp |
* @{ |
*/ |
/** @file |
* ICMP interface implementation for standalone remote modules. |
* @see icmp_interface.h |
*/ |
#include <async.h> |
#include <errno.h> |
#include <ipc/ipc.h> |
#include <ipc/services.h> |
#include "../../messages.h" |
#include "../../modules.h" |
#include "../../include/icmp_interface.h" |
#include "../../structures/packet/packet_client.h" |
#include "icmp_messages.h" |
int icmp_echo_msg( int icmp_phone, icmp_param_t identifier, icmp_param_t sequence_number, const void * data, size_t length ){ |
// TODO ICMP echo |
return ENOTSUP; |
} |
int icmp_destination_unreachable_msg( int icmp_phone, icmp_code_t code, icmp_param_t mtu, packet_t packet ){ |
async_msg_3( icmp_phone, NET_ICMP_DEST_UNREACH, ( ipcarg_t ) code, ( ipcarg_t ) packet_get_id( packet ), ( ipcarg_t ) mtu ); |
return EOK; |
} |
int icmp_source_quench_msg( int icmp_phone, packet_t packet ){ |
async_msg_2( icmp_phone, NET_ICMP_SOURCE_QUENCH, 0, ( ipcarg_t ) packet_get_id( packet )); |
return EOK; |
} |
int icmp_time_exceeded_msg( int icmp_phone, icmp_code_t code, packet_t packet ){ |
async_msg_2( icmp_phone, NET_ICMP_TIME_EXCEEDED, ( ipcarg_t ) code, ( ipcarg_t ) packet_get_id( packet )); |
return EOK; |
} |
int icmp_parameter_problem_msg( int icmp_phone, icmp_code_t code, icmp_param_t pointer, packet_t packet ){ |
async_msg_3( icmp_phone, NET_ICMP_PARAMETERPROB, ( ipcarg_t ) code, ( ipcarg_t ) packet_get_id( packet ), ( ipcarg_t ) pointer ); |
return EOK; |
} |
int icmp_connect_module( services_t service ){ |
return connect_to_service( SERVICE_ICMP ); |
} |
/** @} |
*/ |
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/branches/network/uspace/srv/net/il/icmp/icmp_messages.h |
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0,0 → 1,108 |
/* |
* Copyright (c) 2009 Lukas Mejdrech |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup icmp |
* @{ |
*/ |
/** @file |
* ICMP module messages. |
* @see icmp_interface.h |
*/ |
#ifndef __NET_ICMP_MESSAGES__ |
#define __NET_ICMP_MESSAGES__ |
#include <ipc/ipc.h> |
#include "../../messages.h" |
/** ICMP module messages. |
*/ |
typedef enum{ |
/** Sends echo request. |
* @see icmp_echo() |
*/ |
NET_ICMP_ECHO = NET_ICMP_FIRST, |
/** Sends destination unreachable error message. |
* @see icmp_destination_unreachable_msg() |
*/ |
NET_ICMP_DEST_UNREACH, |
/** Sends source quench error message. |
* @see icmp_source_quench_msg() |
*/ |
NET_ICMP_SOURCE_QUENCH, |
/** Sends redirect error message. |
* @see icmp_redirect_msg() |
*/ |
NET_ICMP_REDIRECT, |
/** Sends time exceeded error message. |
* @see icmp_time_exceeded_msg() |
*/ |
NET_ICMP_TIME_EXCEEDED, |
/** Sends parameter problem error message. |
* @see icmp_parameter_problem_msg() |
*/ |
NET_ICMP_PARAMETERPROB, |
} icmp_messages; |
/** @name ICMP specific message parameters definitions |
*/ |
/*@{*/ |
/** Returns the ICMP code message parameter. |
* @param call The message call structure. Input parameter. |
*/ |
#define ICMP_GET_CODE( call ) ( uint8_t ) IPC_GET_ARG1( * call ) |
/** Returns the echo identifier message parameter. |
* @param call The message call structure. Input parameter. |
*/ |
#define ICMP_GET_IDENTIFIER( call ) ( uint8_t ) IPC_GET_ARG1( * call ) |
/** Returns the echo sequence number message parameter. |
* @param call The message call structure. Input parameter. |
*/ |
#define ICMP_GET_SEQUENCE( call ) ( uint8_t ) IPC_GET_ARG2( * call ) |
/** Returns the ICMP link MTU message parameter. |
* @param call The message call structure. Input parameter. |
*/ |
#define ICMP_GET_MTU( call ) ( uint16_t ) IPC_GET_ARG3( * call ) |
/** Returns the pointer message parameter. |
* @param call The message call structure. Input parameter. |
*/ |
#define ICMP_GET_POINTER( call ) ( uint16_t ) IPC_GET_ARG3( * call ) |
/*@}*/ |
#endif |
/** @} |
*/ |
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/branches/network/uspace/srv/net/il/icmp/icmp_header.h |
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/* |
* Copyright (c) 2009 Lukas Mejdrech |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup icmp |
* @{ |
*/ |
/** @file |
* ICMP header definition. |
* Names according to the linux src/include/linux/icmp.h header file. |
*/ |
#ifndef __NET_ICMP_HEADER_H__ |
#define __NET_ICMP_HEADER_H__ |
#include <sys/types.h> |
#include "../../include/in.h" |
#include "../../include/icmp_codes.h" |
/** Type definition of the user datagram header. |
* @see icmp_header |
*/ |
typedef struct icmp_header icmp_header_t; |
/** Type definition of the user datagram header pointer. |
* @see icmp_header |
*/ |
typedef icmp_header_t * icmp_header_ref; |
/** User datagram header. |
*/ |
struct icmp_header{ |
/** Specifies the type of the message. |
*/ |
uint8_t type; |
/** Contains the error code for the datagram reported by this ICMP message. |
* The interpretation is dependent on the message type. |
*/ |
uint8_t code; |
/** Contains the checksum for the ICMP message starting with the ICMP Type field. |
* If the checksum does not match the contents, the datagram is discarded. |
*/ |
uint16_t checksum; |
/** \todo |
*/ |
union{ |
struct{ |
icmp_param_t id; |
icmp_param_t sequence; |
} echo; |
in_addr_t gateway; |
struct{ |
icmp_param_t unused; |
icmp_param_t mtu; |
} frag; |
struct{ |
icmp_param_t pointer; |
icmp_param_t unused; |
} param; |
} un; |
} __attribute__ ((packed)); |
#endif |
/** @} |
*/ |
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/branches/network/uspace/srv/net/il/icmp/icmp_client.c |
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0,0 → 1,67 |
/* |
* Copyright (c) 2009 Lukas Mejdrech |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup icmp |
* @{ |
*/ |
/** @file |
* ICMP client interface implementation. |
* @see icmp_client.h |
*/ |
#include <errno.h> |
#include <sys/types.h> |
#include "../../include/icmp_codes.h" |
#include "../../include/icmp_client.h" |
#include "../../structures/packet/packet.h" |
#include "../../structures/packet/packet_client.h" |
#include "icmp_header.h" |
int icmp_client_process_packet( packet_t packet, icmp_type_t * type, icmp_code_t * code, icmp_param_t * pointer, icmp_param_t * mtu ){ |
icmp_header_ref header; |
header = ( icmp_header_ref ) packet_get_data( packet ); |
if( ! header ) return ENOMEM; |
if( type ) * type = header->type; |
if( code ) * code = header->code; |
if( pointer ) * pointer = header->un.param.pointer; |
if( mtu ) * mtu = header->un.frag.mtu; |
return sizeof( icmp_header_t ); |
} |
int icmp_client_header_length( packet_t packet ){ |
return sizeof( icmp_header_t ); |
} |
/** @} |
*/ |
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/* |
* Copyright (c) 2008 Lukas Mejdrech |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup icmp |
* @{ |
*/ |
/** @file |
* ICMP module implementation. |
* @see icmp.h |
*/ |
#include <async.h> |
#include <fibril_sync.h> |
#include <ipc/ipc.h> |
#include <ipc/services.h> |
#include "../../err.h" |
#include "../../messages.h" |
#include "../../modules.h" |
#include "../../structures/packet/packet_client.h" |
#include "../../include/crc.h" |
#include "../../include/icmp_codes.h" |
#include "../../include/icmp_client.h" |
#include "../../include/icmp_interface.h" |
#include "../../include/ip_client.h" |
#include "../../include/ip_interface.h" |
#include "../../include/il_interface.h" |
#include "../../include/ip_protocols.h" |
#include "../../tl/tl_messages.h" |
#include "icmp.h" |
#include "icmp_header.h" |
#include "icmp_messages.h" |
#include "icmp_module.h" |
#define ICMP_KEEP_LENGTH 8 |
#define ICMP_HEADER_CHECKSUM( header ) compact_checksum(compute_checksum( 0, ( uint8_t * ) header, sizeof( icmp_header_t ))) |
/** Processes the received ICMP packet. |
* Is used as an entry point from the underlying IP module. |
* Releases the packet on error. |
* @param device_id The device identifier. Ignored parameter. |
* @param packet The received packet. Input/output parameter. |
* @param receiver The target service. Ignored parameter. |
* @param error The packet error reporting service. Prefixes the received packet. Input parameter. |
* @returns EOK on success. |
* @returns Other error codes as defined for the icmp_process_packet() function. |
*/ |
int icmp_received_msg( device_id_t device_id, packet_t packet, services_t receiver, services_t error ); |
/** Processes the received ICMP packet. |
* Notifies the destination socket application. |
* @param packet The received packet. Input/output parameter. |
* @returns EOK on success. |
* @returns EINVAL if the packet is not valid. |
* @returns EINVAL if the stored packet address is not the an_addr_t. |
* @returns EINVAL if the packet does not contain any data. |
* @returns NO_DATA if the packet content is shorter than the user datagram header. |
* @returns ENOMEM if there is not enough memory left. |
* @returns EADDRNOTAVAIL if the destination socket does not exist. |
* @returns Other error codes as defined for the ip_client_process_packet() function. |
*/ |
int icmp_process_packet( packet_t packet ); |
icmp_header_ref icmp_prepare_packet( packet_t packet ); |
int icmp_send_packet( icmp_type_t type, icmp_code_t code, packet_t packet, icmp_header_ref header ); |
/** ICMP global data. |
*/ |
icmp_globals_t icmp_globals; |
int icmp_echo_msg( int icmp_phone, icmp_param_t identifier, icmp_param_t sequence_number, const void * data, size_t length ){ |
// TODO echo - with timeout |
// waits for the reply up to the timeout |
return ENOTSUP; |
} |
int icmp_destination_unreachable_msg( int icmp_phone, icmp_code_t code, icmp_param_t mtu, packet_t packet ){ |
icmp_header_ref header; |
header = icmp_prepare_packet( packet ); |
if( ! header ) return ENOMEM; |
if( mtu ){ |
header->un.frag.mtu = mtu; |
} |
return icmp_send_packet( ICMP_DEST_UNREACH, code, packet, header ); |
} |
int icmp_source_quench_msg( int icmp_phone, packet_t packet ){ |
icmp_header_ref header; |
header = icmp_prepare_packet( packet ); |
if( ! header ) return ENOMEM; |
return icmp_send_packet( ICMP_SOURCE_QUENCH, ICMP_SOURCE_QUENCH, packet, header ); |
} |
int icmp_time_exceeded_msg( int icmp_phone, icmp_code_t code, packet_t packet ){ |
icmp_header_ref header; |
header = icmp_prepare_packet( packet ); |
if( ! header ) return ENOMEM; |
return icmp_send_packet( ICMP_TIME_EXCEEDED, code, packet, header ); |
} |
int icmp_parameter_problem_msg( int icmp_phone, icmp_code_t code, icmp_param_t pointer, packet_t packet ){ |
icmp_header_ref header; |
header = icmp_prepare_packet( packet ); |
if( ! header ) return ENOMEM; |
header->un.param.pointer = pointer; |
return icmp_send_packet( ICMP_PARAMETERPROB, code, packet, header ); |
} |
icmp_header_ref icmp_prepare_packet( packet_t packet ){ |
icmp_header_ref header; |
int header_length; |
size_t total_length; |
total_length = packet_get_data_length( packet ); |
if( total_length <= 0 ) return NULL; |
header_length = ip_client_header_length( packet ); |
if( header_length <= 0 ) return NULL; |
// truncate if longer than 64 bits (without the IP header) |
if( total_length - header_length > ICMP_KEEP_LENGTH ){ |
if( packet_trim( packet, 0, total_length - header_length - ICMP_KEEP_LENGTH ) != EOK ) return NULL; |
} |
header = PACKET_PREFIX( packet, icmp_header_t ); |
if( ! header ){ |
pq_release( icmp_globals.net_phone, packet_get_id( packet )); |
return NULL; |
} |
bzero( header, sizeof( * header )); |
return header; |
} |
int icmp_send_packet( icmp_type_t type, icmp_code_t code, packet_t packet, icmp_header_ref header ){ |
ERROR_DECLARE; |
header->type = type; |
header->code = code; |
header->checksum = 0; |
header->checksum = ICMP_HEADER_CHECKSUM( header ); |
if( ERROR_OCCURRED( ip_client_prepare_packet( packet, IPPROTO_ICMP, 0, 0, 0, 0 ))){ |
pq_release( icmp_globals.net_phone, packet_get_id( packet )); |
return ERROR_CODE; |
} |
return ip_send_msg( icmp_globals.ip_phone, -1, packet, SERVICE_ICMP, SERVICE_ICMP ); |
} |
int icmp_connect_module( services_t service ){ |
return EOK; |
} |
int icmp_initialize( async_client_conn_t client_connection ){ |
ERROR_DECLARE; |
fibril_rwlock_initialize( & icmp_globals.lock ); |
fibril_rwlock_write_lock( & icmp_globals.lock ); |
icmp_globals.ip_phone = ip_bind_service( SERVICE_IP, IPPROTO_ICMP, SERVICE_ICMP, client_connection, icmp_received_msg ); |
if( icmp_globals.ip_phone < 0 ){ |
return icmp_globals.ip_phone; |
} |
ERROR_PROPAGATE( ip_packet_size_req( icmp_globals.ip_phone, -1, & icmp_globals.addr_len, & icmp_globals.prefix, & icmp_globals.content, & icmp_globals.suffix )); |
icmp_globals.prefix += sizeof( icmp_header_t ); |
icmp_globals.content -= sizeof( icmp_header_t ); |
fibril_rwlock_write_unlock( & icmp_globals.lock ); |
return EOK; |
} |
int icmp_received_msg( device_id_t device_id, packet_t packet, services_t receiver, services_t error ){ |
ERROR_DECLARE; |
if( error ){ |
pq_release( icmp_globals.net_phone, packet_get_id( packet )); |
return EINVAL; |
} |
if( ERROR_OCCURRED( icmp_process_packet( packet ))){ |
pq_release( icmp_globals.net_phone, packet_get_id( packet )); |
return ERROR_CODE; |
} |
return EOK; |
} |
int icmp_process_packet( packet_t packet ){ |
int length; |
void * data; |
icmp_header_ref header; |
// get rid of the ip header |
length = ip_client_process_packet( packet, NULL, NULL, NULL, NULL, NULL ); |
if( length < 0 ) return length; |
packet_trim( packet, length, 0 ); |
length = packet_get_data_length( packet ); |
if( length <= 0 ) return EINVAL; |
if( length < sizeof( icmp_header_t )) return EINVAL; |
data = packet_get_data( packet ); |
if( ! data ) return EINVAL; |
// get icmp header |
header = ( icmp_header_ref ) data; |
// checksum |
if(( header->checksum ) && ( ICMP_HEADER_CHECKSUM( header ))){ |
return EINVAL; |
} |
// TODO process requests and replies |
ip_received_error_msg( icmp_globals.ip_phone, -1, packet, SERVICE_IP, SERVICE_ICMP ); |
return EOK; |
} |
int icmp_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
ERROR_DECLARE; |
packet_t packet; |
* answer_count = 0; |
switch( IPC_GET_METHOD( * call )){ |
case NET_TL_RECEIVED: |
fibril_rwlock_read_lock( & icmp_globals.lock ); |
if( ! ERROR_OCCURRED( packet_translate( icmp_globals.net_phone, & packet, IPC_GET_PACKET( call )))){ |
ERROR_CODE = icmp_received_msg( IPC_GET_DEVICE( call ), packet, SERVICE_ICMP, IPC_GET_ERROR( call )); |
} |
fibril_rwlock_read_unlock( & icmp_globals.lock ); |
return ERROR_CODE; |
case NET_ICMP_DEST_UNREACH: |
ERROR_PROPAGATE( packet_translate( icmp_globals.net_phone, & packet, IPC_GET_PACKET( call ))); |
return icmp_destination_unreachable_msg( 0, ICMP_GET_CODE( call ), ICMP_GET_MTU( call ), packet ); |
case NET_ICMP_SOURCE_QUENCH: |
ERROR_PROPAGATE( packet_translate( icmp_globals.net_phone, & packet, IPC_GET_PACKET( call ))); |
return icmp_source_quench_msg( 0, packet ); |
case NET_ICMP_TIME_EXCEEDED: |
ERROR_PROPAGATE( packet_translate( icmp_globals.net_phone, & packet, IPC_GET_PACKET( call ))); |
return icmp_time_exceeded_msg( 0, ICMP_GET_CODE( call ), packet ); |
case NET_ICMP_PARAMETERPROB: |
ERROR_PROPAGATE( packet_translate( icmp_globals.net_phone, & packet, IPC_GET_PACKET( call ))); |
return icmp_parameter_problem_msg( 0, ICMP_GET_CODE( call ), ICMP_GET_POINTER( call ), packet ); |
} |
return ENOTSUP; |
} |
/** @} |
*/ |
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/branches/network/uspace/srv/net/il/icmp/Makefile |
---|
0,0 → 1,52 |
# |
# Copyright (c) 2009 Lukas Mejdrech |
# All rights reserved. |
# |
# Redistribution and use in source and binary forms, with or without |
# modification, are permitted provided that the following conditions |
# are met: |
# |
# - Redistributions of source code must retain the above copyright |
# notice, this list of conditions and the following disclaimer. |
# - Redistributions in binary form must reproduce the above copyright |
# notice, this list of conditions and the following disclaimer in the |
# documentation and/or other materials provided with the distribution. |
# - The name of the author may not be used to endorse or promote products |
# derived from this software without specific prior written permission. |
# |
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
# |
NAME = icmp |
NET_BASE = ../../ |
STRUCTURES = $(NET_BASE)structures/ |
## Sources |
# |
OUTPUT = $(NAME) |
SOURCES = \ |
$(NAME)_module.c \ |
$(NAME).c \ |
$(NET_BASE)module.c \ |
$(NET_BASE)modules.c \ |
$(NET_BASE)crc.c \ |
$(STRUCTURES)packet/packet.c \ |
$(STRUCTURES)packet/packet_client.c \ |
$(STRUCTURES)packet/packet_remote.c \ |
$(STRUCTURES)measured_strings.c \ |
$(NET_BASE)il/ip/ip_client.c \ |
$(NET_BASE)il/ip/ip_remote.c \ |
$(NET_BASE)net/net_remote.c |
include $(NET_BASE)Makefile.module |
Property changes: |
Added: svn:eol-style |
+native |
\ No newline at end of property |
/branches/network/uspace/srv/net/il/icmp/icmp.h |
---|
0,0 → 1,79 |
/* |
* Copyright (c) 2008 Lukas Mejdrech |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup icmp |
* @{ |
*/ |
/** @file |
* ICMP module. |
*/ |
#ifndef __NET_ICMP_H__ |
#define __NET_ICMP_H__ |
#include <fibril_sync.h> |
#include "../../socket/socket_core.h" |
/** Type definition of the ICMP global data. |
* @see icmp_globals |
*/ |
typedef struct icmp_globals icmp_globals_t; |
/** ICMP global data. |
*/ |
struct icmp_globals{ |
/** IP module phone. |
*/ |
int ip_phone; |
/** Reserved packet prefix length. |
*/ |
size_t prefix; |
/** Maximal packet content length. |
*/ |
size_t content; |
/** Reserved packet suffix length. |
*/ |
size_t suffix; |
/** Packet address length. |
*/ |
size_t addr_len; |
/** Networking module phone. |
*/ |
int net_phone; |
/** Safety lock. |
*/ |
fibril_rwlock_t lock; |
}; |
#endif |
/** @} |
*/ |
Property changes: |
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/branches/network/uspace/srv/net/il/icmp/icmp_module.c |
---|
0,0 → 1,120 |
/* |
* Copyright (c) 2008 Lukas Mejdrech |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup icmp |
* @{ |
*/ |
/** @file |
* ICMP standalone module implementation. |
* Contains skeleton module functions mapping. |
* The functions are used by the module skeleton as module specific entry points. |
* @see module.c |
*/ |
#include <async.h> |
#include <stdio.h> |
#include <ipc/ipc.h> |
#include <ipc/services.h> |
#include "../../err.h" |
#include "../../modules.h" |
#include "../../structures/packet/packet.h" |
#include "../../include/net_interface.h" |
#include "icmp.h" |
#include "icmp_module.h" |
/** ICMP module name. |
*/ |
#define NAME "ICMP protocol" |
/** Prints the module name. |
* @see NAME |
*/ |
void module_print_name( void ); |
/** Starts the ICMP module. |
* Initializes the client connection serving function, initializes the module, registers the module service and starts the async manager, processing IPC messages in an infinite loop. |
* @param client_connection The client connection processing function. The module skeleton propagates its own one. Input parameter. |
* @returns EOK on successful module termination. |
* @returns Other error codes as defined for the arp_initialize() function. |
* @returns Other error codes as defined for the REGISTER_ME() macro function. |
*/ |
int module_start( async_client_conn_t client_connection ); |
/** Processes the ICMP message. |
* @param callid The message identifier. Input parameter. |
* @param call The message parameters. Input parameter. |
* @param answer The message answer parameters. Output parameter. |
* @param answer_count The last parameter for the actual answer in the answer parameter. Output parameter. |
* @returns EOK on success. |
* @returns Other error codes as defined for the icmp_message() function. |
*/ |
int module_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ); |
/** ICMP module global data. |
*/ |
extern icmp_globals_t icmp_globals; |
void module_print_name( void ){ |
printf( "%s", NAME ); |
} |
int module_start( async_client_conn_t client_connection ){ |
ERROR_DECLARE; |
ipcarg_t phonehash; |
async_set_client_connection( client_connection ); |
icmp_globals.net_phone = net_connect_module( SERVICE_NETWORKING ); |
if( icmp_globals.net_phone < 0 ){ |
return icmp_globals.net_phone; |
} |
ERROR_PROPAGATE( pm_init()); |
if( ERROR_OCCURRED( icmp_initialize( client_connection )) |
|| ERROR_OCCURRED( REGISTER_ME( SERVICE_ICMP, & phonehash ))){ |
pm_destroy(); |
return ERROR_CODE; |
} |
async_manager(); |
pm_destroy(); |
return EOK; |
} |
int module_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){ |
return icmp_message( callid, call, answer, answer_count ); |
} |
/** @} |
*/ |
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