| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Samuel Mendoza-Jonas <sam.mj@au1.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Now that we can re-initialise the device handler, allow this to be
triggered from UIs over the petitboot protocol.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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There's no need to include the config storage code in lib/ as only the
discover server should be using it.
This change moves the config-storage code to discover/, with the
platform-specific parts moved to a 'struct platform'. Each platform has
a probe function, which is called during init. The first probe function
to return a platform is used.
At present we only have the one platform, but it's now non-intrusive to
add others.
We keep an array of platform pointers in a separate ("platforms")
section, to allow the test module to drop-in its own test "platform".
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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When the client sends us a PB_PROTOCOL_ACTION_CONFIG message, we want to
update the current config.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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On client connect, send a PB_PROTOCOL_ACTION_CONFIG message.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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We have quite a few pb_logs which should be pb_debug. This change moves
developer-specific info to pb_debug.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Currently, if we see an error when writing to a client, we free the
client immediately. This means that any pending reads will be discarded.
Additionally, if a client disconnects before we have finished the writes in
discover_server_process_connection, we won't register the waiter to read
from the socket.
Instead of freeing the client on write failure, this change sets a flag
(se we don't continue to write), and we rely on the read EOF to free the
client. This means we don't drop incoming messages.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Add a little infrastructure for communicating information about the
system to the petitboot UIs. We just send some identifying info (type
and identifier), as well as the interfaces.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Allow the default boot process to be cancelled, via a message with
action PB_PROTOCOL_ACTION_CANCEL_DEFAULT.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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When a client disconnects, the read from the client's fd will return
EOF. We should destroy the client in this situation.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Currently, when a new UI client connects, we send all boot options to
all clients. This results in existing clients getting duplicate add
events.
Instead, we only want to send existing boot options to the new client.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Add a function to the server to notify clients of boot status updates.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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This change introduces a new type, struct discover_boot_option. Like
struct discover_device adds discover-specific data to struct device,
struct discover_boot_option allows the discover server to store more
than just the boot option strings for a boot option.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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We want to cater for situations where boot options may be discovered
some time after we get notificiation about devices. For instance,
discovering boot options from DHCP configuration parameters. In this
case, we'll need to notify UIs of boot options appear some time after
the device (and/or other boot options on the same device) has appeared.
This change adds a new protocol message type,
PB_PROTOCOL_ACTION_BOOT_OPTION_ADD. We also rename
PB_PROTOCOL_ACTION_ADD to make it clear that it is just for devices.
The discover server is updated to send boot option add events at device
discover time, but we are now able to decouple this later.
We also update the clients to handle the boot option add events
separately.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Curently, the protocol deserialise functions are allocating device and
boot_command structures. This (implicitly) makes them responsible for
initialisation of these structures too.
Rather that making the protocol responsible for initialising the devices
and boot commands, this change gives the deserialise functions an
argument to an already-instanciated structure. This means that the
creation is no longer implied by the deserialise.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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This change adds a funtion, device_handler_boot, which processes the
boot command message from the discover server.
We add a new file, discover/boot.c (and a corresponding header) with a
skeleton for the final kexec code.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Add a function in the protocol code to deserialise a boot message, and
use it to extract a boot_command in the discover server.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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We'll need to reference the server when handling messages from clients.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Currently, the petitboot socket is one way: messages are only sent from
server to client.
Beause we want the clients to trigger a boot, this change allows the
server to receive messages on the petitboot socket. This is just a
matter of adding a waiter to the client-specific socket, then handling
incoming messages.
At present we don't do anything with the messages, but we'll add a
handler later.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Rather than defining the set of waiters (and pollfds) in waiter.c, add a
struct waitset to contain these. A waitset is created with
waitset_create, which is passed to the waiter_* functions.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Geoff Levand <geoff@infradead.org>
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Fillout the missing discover code that reports current devices.
Replaces device_handler_get_current_devices() with two new
accessor routines device_handler_get_device_count() and
device_handler_get_device().
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Log discover server messages to a file. Helps in debugging
the server when is has problems at system startup.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
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Make the instance of devices read-only.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Move the log routines to the petitboot library. The log
routines are generic enough to be used for both server and
client. Does not change the log source.
jk: move to lib/log/ instead of lib/
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Move the waiter routines into the petitboot library. The waiter
routines are generic enough to be used for both server and
client. Does not change the waiter source.
jk: move to lib/waiter/ instead of lib/
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Fix various minor build warnings:
lib/pb-protocol/pb-protocol.c:72: warning: comparison between signed and unsigned
lib/pb-protocol/pb-protocol.c:78: warning: comparison between signed and unsigned
lib/pb-protocol/pb-protocol.c:141: warning: unused parameter 'buf_len'
lib/pb-protocol/pb-protocol.c:241: warning: comparison between signed and unsigned
discover/pb-discover.c:14: warning: no previous prototype for 'sigint_handler'
discover/pb-discover.c:13: warning: unused parameter 'signum'
discover/log.c:22: warning: no previous prototype for 'pb_log_set_stream'
discover/discover-server.c:159: warning: no previous prototype for 'discover_server_notify_add'
discover/discover-server.c:169: warning: no previous prototype for 'discover_server_notify_remove'
discover/discover-server.c:179: warning: no previous prototype for 'discover_server_set_device_source'
discover/discover-server.c:184: warning: no previous prototype for 'discover_server_init'
discover/discover-server.c:229: warning: no previous prototype for 'discover_server_destroy'
discover/device-handler.c:395: warning: comparison between signed and unsigned
discover/paths.c:44: warning: comparison between signed and unsigned
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Iterate the parsers from the device handler on an add event.
Initial change to just the kboot parser.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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It isn't needed anymore.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Move the device discovery code from separate udev helpers to a single
process to listen on two sockets: one SOCK_DGRAM for incoming udev
events, and one SOCK_STREAM for UIs to connect.
Initial support for client/server infrastructure, still need to wire-up
the udev messages.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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