The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

BCAT (Background Content Asymmetric synchronized delivery and Transmission) encompasses a set of content download/upload related services.

bcat:a, bcat:m, bcat:u, bcat:s

These are "nn::bcat::detail::ipc::IServiceCreator".

These were added with [2.0.0+].

Cmd Name
0 CreateBcatService
1 CreateDeliveryCacheStorageService
2 CreateDeliveryCacheStorageServiceWithApplicationId
[2.0.0-2.3.0] 3
[2.0.0-2.3.0] 4

Equivalent to 3DS BOSS(SpotPass). See here for BCAT-content-container.

IBcatService

This is "nn::bcat::detail::ipc::IBcatService".

This was added with [2.0.0+].

Cmd Name
10100 #RequestSyncDeliveryCache
10101 [5.0.0+] RequestSyncDeliveryCacheWithDirectoryName
10200 [5.0.0+] CancelSyncDeliveryCacheRequest
20100 #RequestSyncDeliveryCacheWithApplicationId
20101 [5.0.0+] RequestSyncDeliveryCacheWithApplicationIdAndDirectoryName
20300 [8.0.0+] #GetDeliveryCacheStorageUpdateNotifier
20301 [8.0.0+] #RequestSuspendDeliveryTask
30100 SetPassphrase
[2.0.0-2.3.0] 30101
[2.0.0-2.3.0] 30102
30200 [3.0.0+] RegisterDeliveryTask
30201 [3.0.0+] UnregisterDeliveryTask
30202 [3.0.0+] BlockDeliveryTask
30203 [3.0.0+] UnblockDeliveryTask
30300 [8.0.0+] RegisterSystemApplicationDeliveryTasks
90100 GetDeliveryTaskList
90200 #GetDeliveryList
90201 [3.0.0+] ClearDeliveryCacheStorage
90202 [8.0.0+] ClearDeliveryTaskSubscriptionStatus
90300 [3.0.0+] GetPushNotificationLog

RequestSyncDeliveryCache

No input/output.

[3.0.0+] Now returns an #IDeliveryCacheProgressService.

RequestSyncDeliveryCacheWithApplicationId

Takes a total of 8-bytes of input, no output.

[3.0.0+] Now takes an additional 8-bytes of input, and returns an #IDeliveryCacheProgressService.

GetDeliveryCacheStorageUpdateNotifier

Takes a total of 8-bytes of input, returns an #INotifierService.

RequestSuspendDeliveryTask

Takes a total of 8-bytes of input, returns an #IDeliveryTaskSuspensionService.

GetDeliveryList

Takes a type-0x6 output buffer, returns a total of 4-bytes of output.

[3.0.0+] Now takes a total of 8-bytes of input, and returns an additional 4-bytes of output.

IDeliveryCacheProgressService

This is "nn::bcat::detail::ipc::IDeliveryCacheProgressService".

This was added with [2.0.0+].

Cmd Name
0 GetEvent
1 GetImpl

IDeliveryCacheStorageService

This is "nn::bcat::detail::ipc::IDeliveryCacheStorageService".

This was added with [2.0.0+].

Cmd Name
0 CreateFileService
1 CreateDirectoryService
10 EnumerateDeliveryCacheDirectory

IDeliveryCacheFileService

This is "nn::bcat::detail::ipc::IDeliveryCacheFileService".

This was added with [2.0.0+].

Cmd Name
0 Open
1 Read
2 GetSize
3 GetDigest

IDeliveryCacheDirectoryService

This is "nn::bcat::detail::ipc::IDeliveryCacheDirectoryService".

This was added with [2.0.0+].

Cmd Name
0 Open
1 Read
2 GetCount

INotifierService

This is "nn::bcat::detail::ipc::INotifierService".

Added with [8.0.0+].

Cmd Name Notes
0 GetEvent

IDeliveryTaskSuspensionService

This is "nn::bcat::detail::ipc::IDeliveryTaskSuspensionService".

Added with [8.0.0+].

Cmd Name Notes
0 GetEvent

news:a, news:c, news:m, news:p, news:v

These are "nn::news::detail::ipc::IServiceCreator".

On [1.0.0] these are "nn::news::detail::ipc::INewsService", see #INewsService.

Cmd Name Notes
0 No input, returns an #INewsService.
1 No input, returns an #INewlyArrivedEventHolder.
2 No input, returns an #INewsDataService.
3 No input, returns an #INewsDatabaseService.
4 No input, returns an #IOverwriteEventHolder.

INewsService

This is "nn::news::detail::ipc::INewsService".

Cmd Name
10100
20100
30100
30101 [3.0.0+]
30110 [6.0.0+]
30200
30201 [8.0.0+]
30300
30400 [3.0.0+]
30500 [8.0.0+] ? (Takes a total of 8-bytes of input, a handle, and a type-0x9 input buffer, returns an #IUnknown2)
[1.0.0] 30900 (No input, returns an #INewlyArrivedEventHolder)
[1.0.0] 30901 (No input, returns an #INewsDataService)
[1.0.0] 30902 (No input, returns an #INewsDatabaseService)
40100
40101 [3.0.0+]
40200
40201
90100

INewlyArrivedEventHolder

This is "nn::news::detail::ipc::INewlyArrivedEventHolder".

Cmd Name
0

INewsDataService

This is "nn::news::detail::ipc::INewsDataService".

Cmd Name
0
1
2
3
1001 [6.0.0+]

INewsDatabaseService

This is "nn::news::detail::ipc::INewsDatabaseService".

Cmd Name
0
1
2
3
4
5
1000 [6.0.0+]

IOverwriteEventHolder

This is "nn::news::detail::ipc::IOverwriteEventHolder".

Cmd Name
0

IUnknown2

This was added with [8.0.0+].

Cmd Name
0
1
2
3

prepo:a, prepo:a2, prepo:m, prepo:u, prepo:s

These are "nn::prepo::detail::ipc::IPrepoService".

Cmd Name
10100 SaveReportOld ([1.0.0-5.1.0] SaveReport)
10101 SaveReportWithUserOld ([1.0.0-5.1.0] SaveReportWithUser)
10102 [6.0.0+] SaveReport
10103 [6.0.0+] SaveReportWithUser
10200 RequestImmediateTransmission
10300 GetTransmissionStatus
20100 SaveSystemReport
20101 SaveSystemReportWithUser
20200 [4.0.0+] SetOperationMode
30100 ClearStorage
30200 [6.0.0+] ClearStatistics
30300 [6.0.0+] GetStorageUsage
30400 [6.0.0+] GetStatistics
30401 [6.0.0+] GetThroughputHistory
30500 [6.0.0+] GetLastUploadError
40100 [2.0.0+] IsUserAgreementCheckEnabled
40101 [2.0.0+] SetUserAgreementCheckEnabled
90100 [6.0.0+] ReadAllReportFiles ([1.0.0-5.1.0] GetStorageUsage)
[1.0.0] 90101
[1.0.0] 90102
[5.0.0-5.1.0] 90200 GetStatistics
[5.0.0-5.1.0] 90201 GetThroughputHistory
[5.0.0-5.1.0] 90300 GetLastUploadError

Data reporting

The "Play Report" (prepo) service uploads system and user information to a cloud server. This includes the following fields:

sys_info
data
application_id
event_id
operation_mode
lc_recorded_at (followed by a timestamp)
nc_recorded_at (followed by a timestamp)
nsa_id
os_version

And the contents of the following file:

is_user_agreement_check_enabled.bin

All the information is periodically uploaded to the following URL:

  • https://receive-%.dg.srv.nintendo.net/post

It also checks the validity of the device's authentication token using the following URL:

  • https://dauth-%.ndas.srv.nintendo.net/v1/device_auth_token