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Previously, in LLCP v1.0, the only way to use the SDP (Service
Discovery Protocol) service was to send a CONNECT frame containing
the Service Name to the SDP service. This was implicitly
preforming a connection request to the requested service.
LLCP v1.1 introduced a way to discover services more efficiently
and without implicit connection. It also enables connectionless
services to have a service name. It is based on a new protocol
based on a new SNL frame containing discovery requests and
responses.
This update comes with new APIs:
- phLibNfc_Llcp_DiscoverServices() function can be used to discover
remote services. It can take multiple service names and resolve
all of them in a single call.
- Register service name at bind time. Cache LLCP service name/sap pairs.
In LLCP 1.1 specification defines at section 5.9 that any service
lookup answer must be valid for the whole LLCP session duration.
To enforce this, we cache the SAP/SN pairs locally and make sure
that the applications don't break the cache.
The stack remains fully retro-compatible with v1.0 devices.
Change-Id: I052edd3838013cee65e7415d0ed01fc3e9cad36d
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The pending operations were handled at the connection-oriented sockets
level, with no possibility for other transport types to handle
pending operations.
A dispatcher has been added at the generic transport level to
remove this limitation.
This feature is needed to implement LLCP v1.1.
Change-Id: I69e37ba800d1c531396ca97ab0a0480e0f53d63f
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Moved data allocation from stack memory to heap in order
to avoid invalid memory access.
Previously, When trying to send a DM (acknowledgment to
socket disconnect request), the stack was allocating some
frame data on the stack but these data were used after the
function returned.
Other calls to the same function are already using variables
allocated on heap.
Change-Id: Id7356a876fdecdd979ed3ddc6dbe100d6e92d43d
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This enables to register a server socket prior to LLCP link
establishement and avoid any race condition between the local
server and the remote client.
The modification implies a LLCP socket API change (added the
device handle parameter in all LLCP API that can lead to
active data exchange). The LLCP socket internal structures are
now initialized during LLCP link parameter configuration step
instead of LLCP compliancy check to save socket state
independently from peer detection.
Also removed unused socket states and added some traces.
Change-Id: I961c48af4ca9ace68d41b9569dc1038bb2bbdc71
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The LLCP link status callback is now handled first in LIB layer
before being forwarded to the client. This is needed to enable the LIB layer
to detect the link status change and close the sockets accordingly.
Change-Id: I607aaebb4c0c8f2da09c81d4d43b4c705ebfcb13
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Socket options are now copied in the libnfc to avoid referencing a pointer that
may not be valid during the whole socket life cycle.
Change-Id: I7266164bf157242df1ce7fb7a0f9cffd52938140
Signed-off-by: Nick Pelly <npelly@google.com>
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Service Name is now copied in the libnfc to avoid referencing a pointer that
may not be valid during the whole socket life.
Change-Id: I6572366ac51502d189cc8f1350fa089c11cc2bea
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Source: Trusted_NFC_Device_Host_AA03.01e02_google.zip code drop (23-Sep-2010)
Change-Id: Ie47f18423f949a8d3e0815d13f55c814312add24
Signed-off-by: Nick Pelly <npelly@google.com>
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