static inline int irnet_discover_next_daddr(irnet_socket * self) { if(self->iriap) { iriap_close(self->iriap); self->iriap = NULL; } self->iriap = iriap_open(LSAP_ANY, IAS_CLIENT, self, irnet_discovervalue_confirm); if(self->iriap == NULL) return -ENOMEM; self->disco_index++; if(self->disco_index < self->disco_number) { iriap_getvaluebyclass_request(self->iriap, self->discoveries[self->disco_index].saddr, self->discoveries[self->disco_index].daddr, IRNET_SERVICE_NAME, IRNET_IAS_VALUE); return(0); } else return(1); }
/* * Function irnet_find_lsap_sel (self) * * Try to lookup LSAP selector in remote LM-IAS * * Basically, we start a IAP query, and then go to sleep. When the query * return, irnet_getvalue_confirm will wake us up, and we can examine the * result of the query... * Note that in some case, the query fail even before we go to sleep, * creating some races... */ static int irnet_find_lsap_sel(irnet_socket * self) { DENTER(IRDA_SR_TRACE, "(self=0x%X)\n", (unsigned int) self); /* This should not happen */ DABORT(self->iriap, -EBUSY, IRDA_SR_ERROR, "busy with a previous query.\n"); /* Create an IAP instance, will be closed in irnet_getvalue_confirm() */ self->iriap = iriap_open(LSAP_ANY, IAS_CLIENT, self, irnet_getvalue_confirm); /* Treat unexpected signals as disconnect */ self->errno = -EHOSTUNREACH; /* Query remote LM-IAS */ iriap_getvaluebyclass_request(self->iriap, self->saddr, self->daddr, IRNET_SERVICE_NAME, IRNET_IAS_VALUE); /* Wait for answer (if not already failed) */ if(self->iriap != NULL) interruptible_sleep_on(&self->query_wait); /* Check what happened */ if(self->errno) { DEBUG(IRDA_SR_INFO, "IAS query failed! (%d)\n", self->errno); /* Requested object/attribute doesn't exist */ if((self->errno == IAS_CLASS_UNKNOWN) || (self->errno == IAS_ATTRIB_UNKNOWN)) return (-EADDRNOTAVAIL); else return (-EHOSTUNREACH); } /* Get the remote TSAP selector */ switch(self->ias_result->type) { case IAS_INTEGER: DEBUG(IRDA_SR_INFO, "result=%d\n", self->ias_result->t.integer); if(self->ias_result->t.integer != -1) self->dtsap_sel = self->ias_result->t.integer; else self->dtsap_sel = 0; break; default: self->dtsap_sel = 0; DERROR(IRDA_SR_ERROR, "bad type ! (0x%X)\n", self->ias_result->type); break; } /* Cleanup */ if(self->ias_result) irias_delete_value(self->ias_result); DEXIT(IRDA_SR_TRACE, "\n"); if(self->dtsap_sel) return 0; return -EADDRNOTAVAIL; }
/* * Function iriap_init (void) * * Initializes the IrIAP layer, called by the module initialization code * in irmod.c */ int __init iriap_init(void) { struct ias_object *obj; struct iriap_cb *server; __u8 oct_seq[6]; __u16 hints; /* Allocate master array */ iriap = hashbin_new(HB_LOCK); if (!iriap) return -ENOMEM; /* Object repository - defined in irias_object.c */ irias_objects = hashbin_new(HB_LOCK); if (!irias_objects) { IRDA_WARNING("%s: Can't allocate irias_objects hashbin!\n", __func__); hashbin_delete(iriap, NULL); return -ENOMEM; } lockdep_set_class_and_name(&irias_objects->hb_spinlock, &irias_objects_key, "irias_objects"); /* * Register some default services for IrLMP */ hints = irlmp_service_to_hint(S_COMPUTER); service_handle = irlmp_register_service(hints); /* Register the Device object with LM-IAS */ obj = irias_new_object("Device", IAS_DEVICE_ID); irias_add_string_attrib(obj, "DeviceName", "Linux", IAS_KERNEL_ATTR); oct_seq[0] = 0x01; /* Version 1 */ oct_seq[1] = 0x00; /* IAS support bits */ oct_seq[2] = 0x00; /* LM-MUX support bits */ #ifdef CONFIG_IRDA_ULTRA oct_seq[2] |= 0x04; /* Connectionless Data support */ #endif irias_add_octseq_attrib(obj, "IrLMPSupport", oct_seq, 3, IAS_KERNEL_ATTR); irias_insert_object(obj); /* * Register server support with IrLMP so we can accept incoming * connections */ server = iriap_open(LSAP_IAS, IAS_SERVER, NULL, NULL); if (!server) { IRDA_DEBUG(0, "%s(), unable to open server\n", __func__); return -1; } iriap_register_lsap(server, LSAP_IAS, IAS_SERVER); return 0; }
static inline int irnet_find_lsap_sel(irnet_socket * self) { DENTER(IRDA_SR_TRACE, "(self=0x%p)\n", self); DABORT(self->iriap, -EBUSY, IRDA_SR_ERROR, "busy with a previous query.\n"); self->iriap = iriap_open(LSAP_ANY, IAS_CLIENT, self, irnet_getvalue_confirm); self->errno = -EHOSTUNREACH; iriap_getvaluebyclass_request(self->iriap, self->rsaddr, self->daddr, IRNET_SERVICE_NAME, IRNET_IAS_VALUE); DEXIT(IRDA_SR_TRACE, "\n"); return 0; }