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  • uspace/lib/net/netif/netif_local.c

    r46d4d9f r995689d1  
    2727 */
    2828
    29 /** @addtogroup libnet
     29/** @addtogroup netif
    3030 * @{
    3131 */
     
    4343#include <ipc/services.h>
    4444#include <ipc/netif.h>
    45 #include <errno.h>
     45#include <err.h>
    4646
    4747#include <generic.h>
     
    5858DEVICE_MAP_IMPLEMENT(netif_device_map, netif_device_t);
    5959
    60 /** Network interface global data. */
     60/** Network interface global data.
     61 */
    6162netif_globals_t netif_globals;
    6263
     
    6465 *
    6566 * @param[in] netif_phone The network interface phone.
    66  * @param[in] device_id The device identifier.
    67  * @param[in] irq       The device interrupt number.
    68  * @param[in] io        The device input/output address.
    69  * @return              EOK on success.
    70  * @return              Other error codes as defined for the
    71  *                      netif_probe_message().
    72  */
    73 int
    74 netif_probe_req_local(int netif_phone, device_id_t device_id, int irq, int io)
     67 * @param[in] device_id   The device identifier.
     68 * @param[in] irq         The device interrupt number.
     69 * @param[in] io          The device input/output address.
     70 *
     71 * @return EOK on success.
     72 * @return Other errro codes as defined for the netif_probe_message().
     73 *
     74 */
     75int netif_probe_req_local(int netif_phone, device_id_t device_id, int irq, int io)
    7576{
    7677        fibril_rwlock_write_lock(&netif_globals.lock);
     
    8485 *
    8586 * @param[in] netif_phone The network interface phone.
    86  * @param[in] device_id The device identifier.
    87  * @param[in] packet    The packet queue.
    88  * @param[in] sender    The sending module service.
    89  * @return              EOK on success.
    90  * @return              Other error codes as defined for the generic_send_msg()
    91  *                      function.
     87 * @param[in] device_id   The device identifier.
     88 * @param[in] packet      The packet queue.
     89 * @param[in] sender      The sending module service.
     90 *
     91 * @return EOK on success.
     92 * @return Other error codes as defined for the generic_send_msg() function.
     93 *
    9294 */
    9395int netif_send_msg_local(int netif_phone, device_id_t device_id,
    94     packet_t *packet, services_t sender)
     96    packet_t packet, services_t sender)
    9597{
    9698        fibril_rwlock_write_lock(&netif_globals.lock);
     
    104106 *
    105107 * @param[in] netif_phone The network interface phone.
    106  * @param[in] device_id The device identifier.
    107  * @return              EOK on success.
    108  * @return              Other error codes as defined for the find_device()
    109  *                      function.
    110  * @return              Other error codes as defined for the
    111  *                      netif_start_message() function.
     108 * @param[in] device_id   The device identifier.
     109 *
     110 * @return EOK on success.
     111 * @return Other error codes as defined for the find_device() function.
     112 * @return Other error codes as defined for the netif_start_message() function.
     113 *
    112114 */
    113115int netif_start_req_local(int netif_phone, device_id_t device_id)
    114116{
    115         int rc;
     117        ERROR_DECLARE;
    116118       
    117119        fibril_rwlock_write_lock(&netif_globals.lock);
    118120       
    119121        netif_device_t *device;
    120         rc = find_device(device_id, &device);
    121         if (rc != EOK) {
     122        if (ERROR_OCCURRED(find_device(device_id, &device))) {
    122123                fibril_rwlock_write_unlock(&netif_globals.lock);
    123                 return rc;
     124                return ERROR_CODE;
    124125        }
    125126       
     
    140141 *
    141142 * @param[in] netif_phone The network interface phone.
    142  * @param[in] device_id The device identifier.
    143  * @return              EOK on success.
    144  * @return              Other error codes as defined for the find_device()
    145  *                      function.
    146  * @return              Other error codes as defined for the
    147  *                      netif_stop_message() function.
     143 * @param[in] device_id   The device identifier.
     144 *
     145 * @return EOK on success.
     146 * @return Other error codes as defined for the find_device() function.
     147 * @return Other error codes as defined for the netif_stop_message() function.
     148 *
    148149 */
    149150int netif_stop_req_local(int netif_phone, device_id_t device_id)
    150151{
    151         int rc;
     152        ERROR_DECLARE;
    152153       
    153154        fibril_rwlock_write_lock(&netif_globals.lock);
    154155       
    155156        netif_device_t *device;
    156         rc = find_device(device_id, &device);
    157         if (rc != EOK) {
     157        if (ERROR_OCCURRED(find_device(device_id, &device))) {
    158158                fibril_rwlock_write_unlock(&netif_globals.lock);
    159                 return rc;
     159                return ERROR_CODE;
    160160        }
    161161       
     
    175175/** Return the device usage statistics.
    176176 *
    177  * @param[in] netif_phone The network interface phone.
    178  * @param[in] device_id The device identifier.
    179  * @param[out] stats    The device usage statistics.
    180  * @return EOK on success.
     177 * @param[in]  netif_phone The network interface phone.
     178 * @param[in]  device_id   The device identifier.
     179 * @param[out] stats       The device usage statistics.
     180 *
     181 * @return EOK on success.
     182 *
    181183 */
    182184int netif_stats_req_local(int netif_phone, device_id_t device_id,
    183     device_stats_t *stats)
     185    device_stats_ref stats)
    184186{
    185187        fibril_rwlock_read_lock(&netif_globals.lock);
     
    192194/** Return the device local hardware address.
    193195 *
    194  * @param[in] netif_phone The network interface phone.
    195  * @param[in] device_id The device identifier.
    196  * @param[out] address  The device local hardware address.
    197  * @param[out] data     The address data.
    198  * @return              EOK on success.
    199  * @return              EBADMEM if the address parameter is NULL.
    200  * @return              ENOENT if there no such device.
    201  * @return              Other error codes as defined for the
    202  *                      netif_get_addr_message() function.
     196 * @param[in]  netif_phone The network interface phone.
     197 * @param[in]  device_id   The device identifier.
     198 * @param[out] address     The device local hardware address.
     199 * @param[out] data        The address data.
     200 *
     201 * @return EOK on success.
     202 * @return EBADMEM if the address parameter is NULL.
     203 * @return ENOENT if there no such device.
     204 * @return Other error codes as defined for the netif_get_addr_message()
     205 *         function.
     206 *
    203207 */
    204208int netif_get_addr_req_local(int netif_phone, device_id_t device_id,
    205     measured_string_t **address, char **data)
    206 {
    207         int rc;
    208        
    209         if (!address || !data)
     209    measured_string_ref *address, char **data)
     210{
     211        ERROR_DECLARE;
     212       
     213        if ((!address) || (!data))
    210214                return EBADMEM;
    211215       
     
    213217       
    214218        measured_string_t translation;
    215         rc = netif_get_addr_message(device_id, &translation);
    216         if (rc == EOK) {
     219        if (!ERROR_OCCURRED(netif_get_addr_message(device_id, &translation))) {
    217220                *address = measured_string_copy(&translation);
    218                 rc = (*address) ? EOK : ENOMEM;
     221                ERROR_CODE = (*address) ? EOK : ENOMEM;
    219222        }
    220223       
     
    223226        *data = (**address).value;
    224227       
    225         return rc;
     228        return ERROR_CODE;
    226229}
    227230
    228231/** Find the device specific data.
    229232 *
    230  * @param[in] device_id The device identifier.
    231  * @param[out] device   The device specific data.
    232  * @return              EOK on success.
    233  * @return              ENOENT if device is not found.
    234  * @return              EPERM if the device is not initialized.
     233 * @param[in]  device_id The device identifier.
     234 * @param[out] device    The device specific data.
     235 *
     236 * @return EOK on success.
     237 * @return ENOENT if device is not found.
     238 * @return EPERM if the device is not initialized.
     239 *
    235240 */
    236241int find_device(device_id_t device_id, netif_device_t **device)
     
    251256/** Clear the usage statistics.
    252257 *
    253  * @param[in] stats     The usage statistics.
    254  */
    255 void null_device_stats(device_stats_t *stats)
     258 * @param[in] stats The usage statistics.
     259 *
     260 */
     261void null_device_stats(device_stats_ref stats)
    256262{
    257263        bzero(stats, sizeof(device_stats_t));
     
    260266/** Initialize the netif module.
    261267 *
    262  * @param[in] client_connection The client connection functio to be registered.
    263  * @return              EOK on success.
    264  * @return              Other error codes as defined for each specific module
    265  *                      message function.
     268 *  @param[in] client_connection The client connection functio to be
     269 *                               registered.
     270 *
     271 *  @return EOK on success.
     272 *  @return Other error codes as defined for each specific module
     273 *          message function.
     274 *
    266275 */
    267276int netif_init_module(async_client_conn_t client_connection)
    268277{
    269         int rc;
     278        ERROR_DECLARE;
    270279       
    271280        async_set_client_connection(client_connection);
     
    274283        netif_device_map_initialize(&netif_globals.device_map);
    275284       
    276         rc = pm_init();
    277         if (rc != EOK)
    278                 return rc;
     285        ERROR_PROPAGATE(pm_init());
    279286       
    280287        fibril_rwlock_initialize(&netif_globals.lock);
    281        
    282         rc = netif_initialize();
    283         if (rc != EOK) {
     288        if (ERROR_OCCURRED(netif_initialize())) {
    284289                pm_destroy();
    285                 return rc;
     290                return ERROR_CODE;
    286291        }
    287292       
     
    293298 * Prepared for future optimization.
    294299 *
    295  * @param[in] packet_id The packet identifier.
     300 * @param[in] packet_id The packet identifier.
     301 *
    296302 */
    297303void netif_pq_release(packet_id_t packet_id)
     
    302308/** Allocate new packet to handle the given content size.
    303309 *
    304  * @param[in] content   The minimum content size.
    305  * @return              The allocated packet.
    306  * @return              NULL if there is an error.
    307  *
    308  */
    309 packet_t *netif_packet_get_1(size_t content)
     310 * @param[in] content The minimum content size.
     311 *
     312 * @return The allocated packet.
     313 * @return NULL if there is an error.
     314 *
     315 */
     316packet_t netif_packet_get_1(size_t content)
    310317{
    311318        return packet_get_1_remote(netif_globals.net_phone, content);
    312319}
    313320
    314 /** Register the device notification receiver, the network interface layer
    315  * module.
    316  *
    317  * @param[in] name      Module name.
    318  * @param[in] device_id The device identifier.
    319  * @param[in] phone     The network interface layer module phone.
    320  * @return              EOK on success.
    321  * @return              ENOENT if there is no such device.
    322  * @return              ELIMIT if there is another module registered.
     321/** Register the device notification receiver, the network interface layer module.
     322 *
     323 * @param[in] name      Module name.
     324 * @param[in] device_id The device identifier.
     325 * @param[in] phone     The network interface layer module phone.
     326 *
     327 * @return EOK on success.
     328 * @return ENOENT if there is no such device.
     329 * @return ELIMIT if there is another module registered.
     330 *
    323331 */
    324332static int register_message(const char *name, device_id_t device_id, int phone)
    325333{
     334        ERROR_DECLARE;
     335       
    326336        netif_device_t *device;
    327         int rc;
    328        
    329         rc = find_device(device_id, &device);
    330         if (rc != EOK)
    331                 return rc;
    332        
    333         if (device->nil_phone > 0)
     337        ERROR_PROPAGATE(find_device(device_id, &device));
     338        if(device->nil_phone > 0)
    334339                return ELIMIT;
    335340       
     
    342347/** Process the netif module messages.
    343348 *
    344  * @param[in] name      Module name.
    345  * @param[in] callid    The message identifier.
    346  * @param[in] call      The message parameters.
    347  * @param[out] answer   The message answer parameters.
    348  * @param[out] answer_count The last parameter for the actual answer in the
    349  *                      answer parameter.
    350  * @return              EOK on success.
    351  * @return              ENOTSUP if the message is not known.
    352  * @return              Other error codes as defined for each specific module
    353  *                      message function.
     349 * @param[in]  name         Module name.
     350 * @param[in]  callid       The message identifier.
     351 * @param[in]  call         The message parameters.
     352 * @param[out] answer       The message answer parameters.
     353 * @param[out] answer_count The last parameter for the actual answer
     354 *                          in the answer parameter.
     355 *
     356 * @return EOK on success.
     357 * @return ENOTSUP if the message is not known.
     358 * @return Other error codes as defined for each specific module message function.
    354359 *
    355360 * @see IS_NET_NETIF_MESSAGE()
     
    359364    ipc_call_t *call, ipc_call_t *answer, int *answer_count)
    360365{
     366        ERROR_DECLARE;
     367       
    361368        size_t length;
    362369        device_stats_t stats;
    363         packet_t *packet;
     370        packet_t packet;
    364371        measured_string_t address;
    365         int rc;
    366372       
    367373        *answer_count = 0;
    368374        switch (IPC_GET_METHOD(*call)) {
    369         case IPC_M_PHONE_HUNGUP:
    370                 return EOK;
    371        
    372         case NET_NETIF_PROBE:
    373                 return netif_probe_req_local(0, IPC_GET_DEVICE(call),
    374                     NETIF_GET_IRQ(call), NETIF_GET_IO(call));
    375                    
    376         case IPC_M_CONNECT_TO_ME:
    377                 fibril_rwlock_write_lock(&netif_globals.lock);
    378                 rc = register_message(name, IPC_GET_DEVICE(call),
    379                     IPC_GET_PHONE(call));
    380                 fibril_rwlock_write_unlock(&netif_globals.lock);
    381                 return rc;
    382                
    383         case NET_NETIF_SEND:
    384                 rc = packet_translate_remote(netif_globals.net_phone, &packet,
    385                     IPC_GET_PACKET(call));
    386                 if (rc != EOK)
    387                         return rc;
    388                 return netif_send_msg_local(0, IPC_GET_DEVICE(call), packet,
    389                     IPC_GET_SENDER(call));
    390                
    391         case NET_NETIF_START:
    392                 return netif_start_req_local(0, IPC_GET_DEVICE(call));
    393                
    394         case NET_NETIF_STATS:
    395                 fibril_rwlock_read_lock(&netif_globals.lock);
    396 
    397                 rc = async_data_read_receive(&callid, &length);
    398                 if (rc != EOK) {
     375                case IPC_M_PHONE_HUNGUP:
     376                        return EOK;
     377                case NET_NETIF_PROBE:
     378                        return netif_probe_req_local(0, IPC_GET_DEVICE(call),
     379                            NETIF_GET_IRQ(call), NETIF_GET_IO(call));
     380                case IPC_M_CONNECT_TO_ME:
     381                        fibril_rwlock_write_lock(&netif_globals.lock);
     382                        ERROR_CODE = register_message(name, IPC_GET_DEVICE(call),
     383                            IPC_GET_PHONE(call));
     384                        fibril_rwlock_write_unlock(&netif_globals.lock);
     385                        return ERROR_CODE;
     386                case NET_NETIF_SEND:
     387                        ERROR_PROPAGATE(packet_translate_remote(netif_globals.net_phone,
     388                            &packet, IPC_GET_PACKET(call)));
     389                        return netif_send_msg_local(0, IPC_GET_DEVICE(call), packet,
     390                            IPC_GET_SENDER(call));
     391                case NET_NETIF_START:
     392                        return netif_start_req_local(0, IPC_GET_DEVICE(call));
     393                case NET_NETIF_STATS:
     394                        fibril_rwlock_read_lock(&netif_globals.lock);
     395                        if (!ERROR_OCCURRED(async_data_read_receive(&callid, &length))) {
     396                                if (length < sizeof(device_stats_t))
     397                                        ERROR_CODE = EOVERFLOW;
     398                                else {
     399                                        if (!ERROR_OCCURRED(netif_get_device_stats(
     400                                            IPC_GET_DEVICE(call), &stats)))
     401                                                ERROR_CODE = async_data_read_finalize(callid, &stats,
     402                                                    sizeof(device_stats_t));
     403                                }
     404                        }
    399405                        fibril_rwlock_read_unlock(&netif_globals.lock);
    400                         return rc;
    401                 }
    402                 if (length < sizeof(device_stats_t)) {
     406                        return ERROR_CODE;
     407                case NET_NETIF_STOP:
     408                        return netif_stop_req_local(0, IPC_GET_DEVICE(call));
     409                case NET_NETIF_GET_ADDR:
     410                        fibril_rwlock_read_lock(&netif_globals.lock);
     411                        if (!ERROR_OCCURRED(netif_get_addr_message(IPC_GET_DEVICE(call),
     412                            &address)))
     413                                ERROR_CODE = measured_strings_reply(&address, 1);
    403414                        fibril_rwlock_read_unlock(&netif_globals.lock);
    404                         return EOVERFLOW;
    405                 }
    406 
    407                 rc = netif_get_device_stats(IPC_GET_DEVICE(call), &stats);
    408                 if (rc == EOK) {
    409                         rc = async_data_read_finalize(callid, &stats,
    410                             sizeof(device_stats_t));
    411                 }
    412 
    413                 fibril_rwlock_read_unlock(&netif_globals.lock);
    414                 return rc;
    415 
    416         case NET_NETIF_STOP:
    417                 return netif_stop_req_local(0, IPC_GET_DEVICE(call));
    418                
    419         case NET_NETIF_GET_ADDR:
    420                 fibril_rwlock_read_lock(&netif_globals.lock);
    421                 rc = netif_get_addr_message(IPC_GET_DEVICE(call), &address);
    422                 if (rc == EOK)
    423                         rc = measured_strings_reply(&address, 1);
    424                 fibril_rwlock_read_unlock(&netif_globals.lock);
    425                 return rc;
     415                        return ERROR_CODE;
    426416        }
    427417       
     
    431421/** Start the network interface module.
    432422 *
    433  * Initialize the client connection serving function, initialize the module,
    434  * registers the module service and start the async manager, processing IPC
    435  * messages in an infinite loop.
    436  *
    437  * @param[in] client_connection The client connection processing function.
    438  *                      The module skeleton propagates its own one.
    439  * @return              EOK on success.
    440  * @return              Other error codes as defined for each specific module
    441  *                      message function.
     423 * Initialize the client connection serving function, initialize
     424 * the module, registers the module service and start the async
     425 * manager, processing IPC messages in an infinite loop.
     426 *
     427 * @param[in] client_connection The client connection processing
     428 *                              function. The module skeleton propagates
     429 *                              its own one.
     430 *
     431 * @return EOK on success.
     432 * @return Other error codes as defined for each specific module message
     433 *         function.
     434 *
    442435 */
    443436int netif_module_start_standalone(async_client_conn_t client_connection)
    444437{
    445         int rc;
    446        
    447         rc = netif_init_module(client_connection);
    448         if (rc != EOK)
    449                 return rc;
     438        ERROR_DECLARE;
     439       
     440        ERROR_PROPAGATE(netif_init_module(client_connection));
    450441       
    451442        async_manager();
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