Libosdp

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28 June 2020

This release bumps up the minor number as the contract has changed. It
introduces 2 major changes (first 2 in enhancements). The rest is all
re-organization and fixes.

Enhancements:
- In PD Change app notification of incoming commands to polling to
simplify API
- Replace circular buffer command queue with linked list queue
- Add SC status and status query methods
- Add assert guards for exposed methods
- Cleanup osdp.h by splitting it into multiple files
- Split cmake rules into subdirectories

Fixes:
- Add PD address to REPLY_COM in pd_build_reply
- Fix fd leak in read_pid
- Fix missing null char at atohstr()
- Fix memory under-alloc due to operator precedence issues

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29 May 2020

This is the first release of libosdp. It has been in pre-release for a
long time now and has been tested sufficiently well for a first release.
Rate of bug fixes has gone down significantly.

As of this release, libosdp has the following high level feature:
- Supports OSDP CP mode of operation
- Supports OSDP PD mode of operation
- Supports Secure Channel for communication
- Ships a tool: osdpctl to consume and library and setup/manage osdp
devices
- Documents key areas in the protocol that are of interest for consumers
of this library.

So far, this library's CP implementation has been tested with multiple
OSDP PDs including HID's devices and found to be working as expected. The
PD implementation has been tested with it's own CP counterpart so this some
level of confidence on the that too.

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17 Jan 2020

Fix multiple bugs found in LibOSDP:
- fix unhandled reply-code bug
- fix issue where reader goes permanent reader offline
- retry SC after OSDP_PD_SC_RETRY_SEC when possible
- fix USE_SCBKD inversion bug
- fix bug in MAC add/check for SCS_15

Note:
This tag has CP mode verified with HID RK40 readers. This can act as
reference point for all PD change validation hereafter.

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15 Dec 2019

New Features:
- Added new tool osdpctl to create, manage and control osdp devices
- Add PD context to CP logs for clarity

Enhancements and bug fixes:
- Fix PD stale pointer issue in osdp_setup
- Fix MAC generation bug in Secure Channel
- Fix Data offset bug in Secure Channel
- Fix issues reported by -Wimplicit-fallthrough
- Fix memleak in PD command queue alloc
- Fix wrap around bug in cmd_queue
- Fix many clang static code analysis issues

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29 Nov 2019

Features and Issue Fixes:
- Master key management in CP and PD
- Many small issue fixes

Known limitations:
- install mode stuffs need to be ironed out comset command needs to be
- handled correctly

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15 Nov 2019

libosdp has reached a point where all the primary featured are in place.

Known limitations:
- Master key management is missing
- Install mode stuffs need to be ironed out
- comset command needs to be handled correctly