bmc/ver.../test/.close_unittest: add missing header

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: I836986ee7108caa651a374c3f08e96029d01cd9c

version-handler/test: Remove unused declarations

Change-Id: If9bc7dd4c58bd9ba3430ffee6319da5ed194cb9f
Signed-off-by: William A. Kennington III <wak@google.com>

version_handler: Support multiple sessions

We want to be able to support multiple concurrent readers of version
information. Otherwise, upstream version checks might fail if they end

version_handler: Support multiple sessions

We want to be able to support multiple concurrent readers of version
information. Otherwise, upstream version checks might fail if they end
up being sequenced concurrently.

Change-Id: I5420ad667622b7906e633562a5373e0be042c0c1
Signed-off-by: William A. Kennington III <wak@google.com>

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version_handler: Don't store session information immediately

This can cause spurious trigger aborts when open's fail and cleanup is
called on the failed session.

Change-Id: I1c4

version_handler: Don't store session information immediately

This can cause spurious trigger aborts when open's fail and cleanup is
called on the failed session.

Change-Id: I1c49f248b6f56bbecc0d51fafaabe871d23b1d7d
Signed-off-by: William A. Kennington III <wak@google.com>

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version-handler: Refactor handler construction

Instead of requiring callers to build maps and info blobs, take the
minimal required amount of information about the blob configuration and

version-handler: Refactor handler construction

Instead of requiring callers to build maps and info blobs, take the
minimal required amount of information about the blob configuration and
build required datastructures internally.

This reduces the amount of code, and nearly eliminates all of the
untested code in main.cpp.

Change-Id: Iaa398eb404814e9263e6707b71b38a9831d96697
Signed-off-by: William A. Kennington III <wak@google.com>

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version-handler: add version-handler, blob handler

Implement version-handler: a blob handler for retrieving version
information about a blob.

Problem: ipmi-flash(firmware-handle

version-handler: add version-handler, blob handler

Implement version-handler: a blob handler for retrieving version
information about a blob.

Problem: ipmi-flash(firmware-handler) provides a mechanism to transfer
firmware updates, verify them and perform updates but there is no
mechanism to interrogate the firmware for its version.

Solution: version-handler provides handlers for retrieving information
about firmware blobs. Adding "version" syntax to "/flash/blob" entries
in the json configuration file enables this feature.
The mechanism to retrieve version is identical to the mechanism used by
firmware-handler to perform preparation, verification and updates (kick
off systemd targets).

Signed-off-by: Jason Ling <jasonling@google.com>
Change-Id: I28868ca8dd76d63af668d2e46b9359401d45f0bc

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