[PATCH 00/10] Add interface for running pb-plugins

[Samuel Mendoza-Jonas]

This is a cleaned up and improved version of the previous RFC.

With this series Petitboot can discover pb-plugin sources from
PXE-formatted files and present them to the user. From the new
nc-plugin screen the user can request that these plugins be installed
and then run.

The major change from the RFC is that plugins are now run synchronously.
This reduces the complexity of petitboot-nc handing over the display to
a separate program, and shouldn't have a user-visible impact.

One caveat is that in its current incarnation nc-plugin merely runs a
command described by the pb-plugin and displays the output. It does not
put the user in a usable shell.
While we can spawn a real shell and run the command in that, that may
have implications with work currently going on for secure/trusted boot.
A preferable solution could be to extend the pb-plugin ABI to include
command *arguments*, but that is not covered in this series.

Samuel Mendoza-Jonas (10):
  utils/pb-plugin: Add non-interactive install
  discover/pxe-parser: Recognise plugin sources
  lib/process: Add raw stdout mode
  utils: Add pb-exec wrapper
  lib: Add plugin_option type and protocol
  discover: Handle and track plugin_options
  discover: Add 'plugin' user-event
  discover: Handle plugin install request
  ui/ncurses: Update cui_run_cmd() to pass display to command
  ui/ncurses: Add plugin menu and nc-plugin screen

 configure.ac                     |   2 +
 discover/device-handler.c        | 116 +++++++++++
 discover/device-handler.h        |   7 +
 discover/discover-server.c       |  67 ++++++-
 discover/discover-server.h       |   5 +
 discover/event.c                 |   2 +
 discover/event.h                 |   1 +
 discover/pxe-parser.c            |  19 +-
 discover/user-event.c            |  57 ++++++
 lib/pb-protocol/pb-protocol.c    | 117 ++++++++++-
 lib/pb-protocol/pb-protocol.h    |   9 +
 lib/process/process.c            |   7 +-
 lib/process/process.h            |   1 +
 lib/system/system.c              |   2 +
 lib/system/system.h              |   2 +
 lib/types/types.h                |  20 ++
 test/parser/Makefile.am          |   1 +
 test/parser/handler.c            |   6 +
 test/parser/user-event.c         |  13 ++
 ui/common/discover-client.c      |  48 +++++
 ui/common/discover-client.h      |   9 +
 ui/ncurses/Makefile.am           |   7 +-
 ui/ncurses/nc-boot-editor.c      |   3 +-
 ui/ncurses/nc-cui.c              | 328 +++++++++++++++++++++++++++++--
 ui/ncurses/nc-cui.h              |  22 ++-
 ui/ncurses/nc-menu.c             |  32 ++-
 ui/ncurses/nc-menu.h             |   3 +-
 ui/ncurses/nc-plugin-help.c      |   7 +
 ui/ncurses/nc-plugin-menu-help.c |   7 +
 ui/ncurses/nc-plugin.c           | 406 +++++++++++++++++++++++++++++++++++++++
 ui/ncurses/nc-plugin.h           |  34 ++++
 ui/ncurses/nc-scr.h              |   1 +
 utils/Makefile.am                |   2 +-
 utils/pb-exec                    |  15 ++
 utils/pb-plugin                  |  36 ++--
 35 files changed, 1368 insertions(+), 46 deletions(-)
 create mode 100644 test/parser/user-event.c
 create mode 100644 ui/ncurses/nc-plugin-help.c
 create mode 100644 ui/ncurses/nc-plugin-menu-help.c
 create mode 100644 ui/ncurses/nc-plugin.c
 create mode 100644 ui/ncurses/nc-plugin.h
 create mode 100755 utils/pb-exec

-- 
2.13.1