WebSVN – HelenOS – Diff – /branches/network/uspace/srv/net/netif/lo/lo.c


/*
 * 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 lo
 *  @{
 */
 
/** @file
 *  Loopback network interface implementation.
 */
 
#include <async.h>
#include <errno.h>
#include <stdio.h>
 
#include <ipc/ipc.h>
#include <ipc/services.h>
 
#include "../../err.h"
#include "../../messages.h"
#include "../../modules.h"
 
#include "../../structures/measured_strings.h"
#include "../../structures/packet/packet_client.h"
 
#include "../../include/device.h"
#include "../../include/nil_interface.h"
#include "../../include/net_interface.h"
 
#include "../../nil/nil_messages.h"
 
#include "../netif.h"
#include "../netif_module.h"
 
/** Default maximum transmission unit.
 */
#define DEFAULT_MTU 1500
 
/** Default hardware address.
 */
#define DEFAULT_ADDR        "\0\0\0\0\0\0"
 
/** Default address length.
 */
#define DEFAULT_ADDR_LEN    ( sizeof( DEFAULT_ADDR ) / sizeof( char ))
 
/** Loopback module name.
 */
#define NAME    "lo - loopback interface"
 
/** Network interface global data.
 */
netif_globals_t netif_globals;
 
/** Loopback module global data.
 */
static struct lo_globals{
    unsigned int mtu;
} lo_globals;
 
/** Changes the loopback state.
 *  @param device The device structure. Input parameter.
 *  @param state The new device state. Input parameter.
 *  @returns The new state if changed.
 *  @returns EOK otherwise.
 */
int change_state_message( device_ref device, device_state_t state );
 
/** Creates and returns the loopback network interface structure.
 *  @param device_id The new devce identifier. Input parameter.
 *  @param device The device structure. Output parameter.
 *  @returns EOK on success.
 *  @returns EXDEV if one loopback network interface already exists.
 *  @returns ENOMEM if there is not enough memory left.
 */
int create( device_id_t device_id, device_ref * device );
 
/** Prints the module name.
 *  @see NAME
 */
void    module_print_name( void );
 
int netif_specific_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){
    switch( IPC_GET_METHOD( * call )){
        case NET_NIL_PACKET_SPACE:
            * IPC_SET_ADDR( answer ) = 0;
            * IPC_SET_PREFIX( answer ) = 0;
            * IPC_SET_CONTENT( answer ) = lo_globals.mtu;
            * IPC_SET_SUFFIX( answer ) = 0;
            * answer_count = 4;
            return EOK;
        default:
            return ENOTSUP;
    }
}
 
int netif_get_addr_message( device_id_t device_id, measured_string_ref address ){
    if( ! address ) return EBADMEM;
    address->value = DEFAULT_ADDR;
    address->length = DEFAULT_ADDR_LEN;
    return EOK;
}
 
int netif_get_device_stats( device_id_t device_id, device_stats_ref stats ){
    ERROR_DECLARE;
 
    device_ref  device;
 
    if( ! stats ) return EBADMEM;
    ERROR_PROPAGATE( find_device( device_id, & device ));
    memcpy( stats, ( device_stats_ref ) device->specific, sizeof( device_stats_t ));
    return EOK;
}
 
int change_state_message( device_ref device, device_state_t state ){
    if( device->state != state ){
        device->state = state;
        printf( "State changed to %s\n", ( state == NETIF_ACTIVE ) ? "ACTIVE" : "STOPPED" );
        return state;
    }
    return EOK;
}
 
int create( device_id_t device_id, device_ref * device ){
    int index;
 
    if( device_map_count( & netif_globals.device_map ) > 0 ){
        return EXDEV;
    }else{
        * device = ( device_ref ) malloc( sizeof( device_t ));
        if( !( * device )) return ENOMEM;
        ( ** device ).specific = malloc( sizeof( device_stats_t ));
        if( ! ( ** device ).specific ){
            free( * device );
            return ENOMEM;
        }
        null_device_stats(( device_stats_ref )( ** device ).specific );
        ( ** device ).device_id = device_id;
        ( ** device ).nil_phone = -1;
        ( ** device ).state = NETIF_STOPPED;
        index = device_map_add( & netif_globals.device_map, ( ** device ).device_id, * device );
        if( index < 0 ){
            free( * device );
            free(( ** device ).specific );
            * device = NULL;
            return index;
        }
    }
    return EOK;
}
 
int netif_initialize( void ){
    ipcarg_t    phonehash;
 
    return REGISTER_ME( SERVICE_LO, & phonehash );
}
 
void module_print_name( void ){
    printf( "%s", NAME );
}
 
int netif_probe_auto_message( void ){
/*  ERROR_DECLARE;
 
    device_ref  device;
 
    ERROR_PROPAGATE( create( arg1, & device ));
    ipc_call_sync_3_3( netif_globals.net_phone, NET_NET_DEVICE, device->device_id, NULL, NULL, NULL, NULL, NULL );
*/  return ENOTSUP;
}
 
int netif_probe_message( device_id_t device_id, int irq, int io ){
    ERROR_DECLARE;
 
    device_ref          device;
    measured_string_t   names[ 1 ] = {{ "MTU", 3 }};
    measured_string_ref configuration;
    size_t              count = sizeof( names ) / sizeof( measured_string_t );
    char *              data;
 
    configuration = & names[ 0 ];
    // create a new device
    ERROR_PROPAGATE( create( device_id, & device ));
    // get configuration
    ERROR_PROPAGATE( net_get_device_conf_req( netif_globals.net_phone, device->device_id, & configuration, count, & data ));
    // MTU is the first one
    if( configuration && configuration[ 0 ].value ){
        lo_globals.mtu = strtoul( configuration[ 0 ].value, NULL, 0 );
        net_free_settings( configuration, data );
    }else{
        lo_globals.mtu = DEFAULT_MTU;
    }
    // print the settings
    printf("New device registered:\n\tid\t= %d\n\tMTU\t= %d\n", device->device_id, lo_globals.mtu );
    return EOK;
}
 
int netif_send_message( device_id_t device_id, packet_t packet, services_t sender ){
    ERROR_DECLARE;
 
    device_ref  device;
    size_t      length;
    packet_t    next;
    int         phone;
 
    ERROR_PROPAGATE( find_device( device_id, & device ));
    if( device->state != NETIF_ACTIVE ) return EPERM;
    next = packet;
    do{
        ++ (( device_stats_ref ) device->specific )->tx_packets;
        ++ (( device_stats_ref ) device->specific )->rx_packets;
        length = packet_get_data_length( next );
        (( device_stats_ref ) device->specific )->tx_bytes += length;
        (( device_stats_ref ) device->specific )->rx_bytes += length;
        next = pq_next( next );
    }while( next );
    phone = device->nil_phone;
    rwlock_write_unlock( & netif_globals.lock );
    nil_received_msg( phone, device_id, packet, sender );
    rwlock_write_lock( & netif_globals.lock );
    return EOK;
}
 
int netif_start_message( device_ref device ){
    return change_state_message( device, NETIF_ACTIVE );
}
 
int netif_stop_message( device_ref device ){
    return change_state_message( device, NETIF_STOPPED );
}
 
/** @}
 */
 

Rev 4351	Rev 4498
1	/*	1	/*
2	* Copyright (c) 2009 Lukas Mejdrech	2	* Copyright (c) 2009 Lukas Mejdrech
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup lo	29	/** @addtogroup lo
30	* @{	30	* @{
31	*/	31	*/
32		32
33	/** @file	33	/** @file
34	* Loopback network interface implementation.	34	* Loopback network interface implementation.
35	*/	35	*/
36		36
37	#include <async.h>	37	#include <async.h>
38	#include <errno.h>	38	#include <errno.h>
39	#include <stdio.h>	39	#include <stdio.h>
40		40
41	#include <ipc/ipc.h>	41	#include <ipc/ipc.h>
42	#include <ipc/services.h>	42	#include <ipc/services.h>
43		43
44	#include "../../err.h"	44	#include "../../err.h"
45	#include "../../messages.h"	45	#include "../../messages.h"
46	#include "../../modules.h"	46	#include "../../modules.h"
47		47
48	#include "../../structures/measured_strings.h"	48	#include "../../structures/measured_strings.h"
49	#include "../../structures/packet/packet_client.h"	49	#include "../../structures/packet/packet_client.h"
50		50
51	#include "../../include/device.h"	51	#include "../../include/device.h"
52	#include "../../include/nil_interface.h"	52	#include "../../include/nil_interface.h"
53	#include "../../include/net_interface.h"	53	#include "../../include/net_interface.h"
54		54
-		55	#include "../../nil/nil_messages.h"
-		56
55	#include "../netif.h"	57	#include "../netif.h"
56	#include "../netif_module.h"	58	#include "../netif_module.h"
57		59
58	/** Default maximum transmission unit.	60	/** Default maximum transmission unit.
59	*/	61	*/
60	#define DEFAULT_MTU 1500	62	#define DEFAULT_MTU 1500
61		63
62	/** Default hardware address.	64	/** Default hardware address.
63	*/	65	*/
64	#define DEFAULT_ADDR "\0\0\0\0\0\0"	66	#define DEFAULT_ADDR "\0\0\0\0\0\0"
65		67
66	/** Default address length.	68	/** Default address length.
67	*/	69	*/
68	#define DEFAULT_ADDR_LEN ( sizeof( DEFAULT_ADDR ) / sizeof( char ))	70	#define DEFAULT_ADDR_LEN ( sizeof( DEFAULT_ADDR ) / sizeof( char ))
69		71
70	/** Loopback module name.	72	/** Loopback module name.
71	*/	73	*/
72	#define NAME "lo - loopback interface"	74	#define NAME "lo - loopback interface"
73		75
74	/** Network interface global data.	76	/** Network interface global data.
75	*/	77	*/
76	netif_globals_t netif_globals;	78	netif_globals_t netif_globals;
77		79
78	/** Loopback module global data.	80	/** Loopback module global data.
79	*/	81	*/
80	static struct lo_globals{	82	static struct lo_globals{
81	unsigned int mtu;	83	unsigned int mtu;
82	} lo_globals;	84	} lo_globals;
83		85
84	/** Changes the loopback state.	86	/** Changes the loopback state.
85	* @param device The device structure. Input parameter.	87	* @param device The device structure. Input parameter.
86	* @param state The new device state. Input parameter.	88	* @param state The new device state. Input parameter.
87	* @returns The new state if changed.	89	* @returns The new state if changed.
88	* @returns EOK otherwise.	90	* @returns EOK otherwise.
89	*/	91	*/
90	int change_state_message( device_ref device, device_state_t state );	92	int change_state_message( device_ref device, device_state_t state );
91		93
92	/** Creates and returns the loopback network interface structure.	94	/** Creates and returns the loopback network interface structure.
93	* @param device_id The new devce identifier. Input parameter.	95	* @param device_id The new devce identifier. Input parameter.
94	* @param device The device structure. Output parameter.	96	* @param device The device structure. Output parameter.
95	* @returns EOK on success.	97	* @returns EOK on success.
96	* @returns EXDEV if one loopback network interface already exists.	98	* @returns EXDEV if one loopback network interface already exists.
97	* @returns ENOMEM if there is not enough memory left.	99	* @returns ENOMEM if there is not enough memory left.
98	*/	100	*/
99	int create( device_id_t device_id, device_ref * device );	101	int create( device_id_t device_id, device_ref * device );
100		102
101	/** Prints the module name.	103	/** Prints the module name.
102	* @see NAME	104	* @see NAME
103	*/	105	*/
104	void module_print_name( void );	106	void module_print_name( void );
105		107
106	int netif_specific_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){	108	int netif_specific_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){
-		109	switch( IPC_GET_METHOD( * call )){
-		110	case NET_NIL_PACKET_SPACE:
-		111	* IPC_SET_ADDR( answer ) = 0;
-		112	* IPC_SET_PREFIX( answer ) = 0;
-		113	* IPC_SET_CONTENT( answer ) = lo_globals.mtu;
-		114	* IPC_SET_SUFFIX( answer ) = 0;
-		115	* answer_count = 4;
-		116	return EOK;
-		117	default:
107	return ENOTSUP;	118	return ENOTSUP;
-		119	}
108	}	120	}
109		121
110	int netif_get_addr_message( device_id_t device_id, measured_string_ref address ){	122	int netif_get_addr_message( device_id_t device_id, measured_string_ref address ){
111	if( ! address ) return EBADMEM;	123	if( ! address ) return EBADMEM;
112	address->value = DEFAULT_ADDR;	124	address->value = DEFAULT_ADDR;
113	address->length = DEFAULT_ADDR_LEN;	125	address->length = DEFAULT_ADDR_LEN;
114	return EOK;	126	return EOK;
115	}	127	}
116		128
117	int netif_get_device_stats( device_id_t device_id, device_stats_ref stats ){	129	int netif_get_device_stats( device_id_t device_id, device_stats_ref stats ){
118	ERROR_DECLARE;	130	ERROR_DECLARE;
119		131
120	device_ref device;	132	device_ref device;
121		133
122	if( ! stats ) return EBADMEM;	134	if( ! stats ) return EBADMEM;
123	ERROR_PROPAGATE( find_device( device_id, & device ));	135	ERROR_PROPAGATE( find_device( device_id, & device ));
124	memcpy( stats, ( device_stats_ref ) device->specific, sizeof( device_stats_t ));	136	memcpy( stats, ( device_stats_ref ) device->specific, sizeof( device_stats_t ));
125	return EOK;	137	return EOK;
126	}	138	}
127		139
128	int change_state_message( device_ref device, device_state_t state ){	140	int change_state_message( device_ref device, device_state_t state ){
129	if( device->state != state ){	141	if( device->state != state ){
130	device->state = state;	142	device->state = state;
131	printf( "State changed to %s\n", ( state == NETIF_ACTIVE ) ? "ACTIVE" : "STOPPED" );	143	printf( "State changed to %s\n", ( state == NETIF_ACTIVE ) ? "ACTIVE" : "STOPPED" );
132	return state;	144	return state;
133	}	145	}
134	return EOK;	146	return EOK;
135	}	147	}
136		148
137	int create( device_id_t device_id, device_ref * device ){	149	int create( device_id_t device_id, device_ref * device ){
138	int index;	150	int index;
139		151
140	if( device_map_count( & netif_globals.device_map ) > 0 ){	152	if( device_map_count( & netif_globals.device_map ) > 0 ){
141	return EXDEV;	153	return EXDEV;
142	}else{	154	}else{
143	* device = ( device_ref ) malloc( sizeof( device_t ));	155	* device = ( device_ref ) malloc( sizeof( device_t ));
144	if( !( * device )) return ENOMEM;	156	if( !( * device )) return ENOMEM;
145	( ** device ).specific = malloc( sizeof( device_stats_t ));	157	( ** device ).specific = malloc( sizeof( device_stats_t ));
146	if( ! ( ** device ).specific ){	158	if( ! ( ** device ).specific ){
147	free( * device );	159	free( * device );
148	return ENOMEM;	160	return ENOMEM;
149	}	161	}
150	null_device_stats(( device_stats_ref )( ** device ).specific );	162	null_device_stats(( device_stats_ref )( ** device ).specific );
151	( ** device ).device_id = device_id;	163	( ** device ).device_id = device_id;
152	( ** device ).nil_phone = -1;	164	( ** device ).nil_phone = -1;
153	( ** device ).state = NETIF_STOPPED;	165	( ** device ).state = NETIF_STOPPED;
154	index = device_map_add( & netif_globals.device_map, ( ** device ).device_id, * device );	166	index = device_map_add( & netif_globals.device_map, ( ** device ).device_id, * device );
155	if( index < 0 ){	167	if( index < 0 ){
156	free( * device );	168	free( * device );
157	free(( ** device ).specific );	169	free(( ** device ).specific );
158	* device = NULL;	170	* device = NULL;
159	return index;	171	return index;
160	}	172	}
161	}	173	}
162	return EOK;	174	return EOK;
163	}	175	}
164		176
165	int netif_initialize( void ){	177	int netif_initialize( void ){
166	ipcarg_t phonehash;	178	ipcarg_t phonehash;
167		179
168	return REGISTER_ME( SERVICE_LO, & phonehash );	180	return REGISTER_ME( SERVICE_LO, & phonehash );
169	}	181	}
170		182
171	void module_print_name( void ){	183	void module_print_name( void ){
172	printf( "%s", NAME );	184	printf( "%s", NAME );
173	}	185	}
174		186
175	int netif_probe_auto_message( void ){	187	int netif_probe_auto_message( void ){
176	/* ERROR_DECLARE;	188	/* ERROR_DECLARE;
177		189
178	device_ref device;	190	device_ref device;
179		191
180	ERROR_PROPAGATE( create( arg1, & device ));	192	ERROR_PROPAGATE( create( arg1, & device ));
181	ipc_call_sync_3_3( netif_globals.net_phone, NET_NET_DEVICE, device->device_id, NULL, NULL, NULL, NULL, NULL );	193	ipc_call_sync_3_3( netif_globals.net_phone, NET_NET_DEVICE, device->device_id, NULL, NULL, NULL, NULL, NULL );
182	*/ return ENOTSUP;	194	*/ return ENOTSUP;
183	}	195	}
184		196
185	int netif_probe_message( device_id_t device_id, int irq, int io ){	197	int netif_probe_message( device_id_t device_id, int irq, int io ){
186	ERROR_DECLARE;	198	ERROR_DECLARE;
187		199
188	device_ref device;	200	device_ref device;
189	measured_string_t names[ 1 ] = {{ "MTU", 3 }};	201	measured_string_t names[ 1 ] = {{ "MTU", 3 }};
190	measured_string_ref configuration;	202	measured_string_ref configuration;
191	int count = 1;	203	size_t count = sizeof( names ) / sizeof( measured_string_t );
192	char * data;	204	char * data;
193		205
194	configuration = & names[ 0 ];	206	configuration = & names[ 0 ];
195	// create a new device	207	// create a new device
196	ERROR_PROPAGATE( create( device_id, & device ));	208	ERROR_PROPAGATE( create( device_id, & device ));
197	// get configuration	209	// get configuration
198	ERROR_PROPAGATE( net_get_device_conf_req( netif_globals.net_phone, device->device_id, & configuration, count, & data ));	210	ERROR_PROPAGATE( net_get_device_conf_req( netif_globals.net_phone, device->device_id, & configuration, count, & data ));
199	// MTU is the first one	211	// MTU is the first one
200	if( configuration && configuration[ 0 ].value ){	212	if( configuration && configuration[ 0 ].value ){
201	lo_globals.mtu = strtoul( configuration[ 0 ].value, NULL, 0 );	213	lo_globals.mtu = strtoul( configuration[ 0 ].value, NULL, 0 );
202	net_free_settings( configuration, data );	214	net_free_settings( configuration, data );
203	}else{	215	}else{
204	lo_globals.mtu = DEFAULT_MTU;	216	lo_globals.mtu = DEFAULT_MTU;
205	}	217	}
206	// print the settings	218	// print the settings
207	printf("New device registered:\n\tid\t= %d\n\tMTU\t= %d\n", device->device_id, lo_globals.mtu );	219	printf("New device registered:\n\tid\t= %d\n\tMTU\t= %d\n", device->device_id, lo_globals.mtu );
208	return EOK;	220	return EOK;
209	}	221	}
210		222
211	int netif_send_message( device_id_t device_id, packet_t packet, services_t sender ){	223	int netif_send_message( device_id_t device_id, packet_t packet, services_t sender ){
212	ERROR_DECLARE;	224	ERROR_DECLARE;
213		225
214	device_ref device;	226	device_ref device;
215	size_t length;	227	size_t length;
216	packet_t next;	228	packet_t next;
217	int phone;	229	int phone;
218		230
219	ERROR_PROPAGATE( find_device( device_id, & device ));	231	ERROR_PROPAGATE( find_device( device_id, & device ));
220	if( device->state != NETIF_ACTIVE ) return EPERM;	232	if( device->state != NETIF_ACTIVE ) return EPERM;
221	next = packet;	233	next = packet;
222	do{	234	do{
223	++ (( device_stats_ref ) device->specific )->tx_packets;	235	++ (( device_stats_ref ) device->specific )->tx_packets;
224	++ (( device_stats_ref ) device->specific )->rx_packets;	236	++ (( device_stats_ref ) device->specific )->rx_packets;
225	length = packet_get_data_length( next );	237	length = packet_get_data_length( next );
226	(( device_stats_ref ) device->specific )->tx_bytes += length;	238	(( device_stats_ref ) device->specific )->tx_bytes += length;
227	(( device_stats_ref ) device->specific )->rx_bytes += length;	239	(( device_stats_ref ) device->specific )->rx_bytes += length;
228	next = pq_next( next );	240	next = pq_next( next );
229	}while( next );	241	}while( next );
230	phone = device->nil_phone;	242	phone = device->nil_phone;
231	rwlock_write_unlock( & netif_globals.lock );	243	rwlock_write_unlock( & netif_globals.lock );
232	nil_received_msg( phone, device_id, packet, sender );	244	nil_received_msg( phone, device_id, packet, sender );
233	rwlock_write_lock( & netif_globals.lock );	245	rwlock_write_lock( & netif_globals.lock );
234	return EOK;	246	return EOK;
235	}	247	}
236		248
237	int netif_start_message( device_ref device ){	249	int netif_start_message( device_ref device ){
238	return change_state_message( device, NETIF_ACTIVE );	250	return change_state_message( device, NETIF_ACTIVE );
239	}	251	}
240		252
241	int netif_stop_message( device_ref device ){	253	int netif_stop_message( device_ref device ){
242	return change_state_message( device, NETIF_STOPPED );	254	return change_state_message( device, NETIF_STOPPED );
243	}	255	}
244		256
245	/** @}	257	/** @}
246	*/	258	*/
247		259

Subversion Repositories HelenOS

(root)/branches/network/uspace/srv/net/netif/lo/lo.c – Rev 4351 → 4498