| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Geoff Levand <geoff@infradead.org>
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We're getting warnings from some compilers about tempnam being unsafe.
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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Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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This change groups the offsetof, container_of and ARRAY_SIZE macros in a
single header file util/util.h.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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We've been compiling with --enable-debug; this change fixes some
problems exposed by the optimiser.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Add a new function parser_request_url() to read the data from
configuration files present remotely. We deprecate
iterate_parser_files() and download_config() functions along with the
'filenames' and 'method' members of the 'parser' structure so that
individual parsers would now require to request the configuration files
data from the parser code and doesn't necessarily export the list of
configuration files.
Add the support to handle incoming DHCP event, done by passing all the
relevant environment variables of the udhcpc to the discover code.
Also, update the pxe parser code to populate the list of configuration
file names as per PXELINUX convention of fallback names using mac and ip
addresses of the booting machine.
Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Ensure all pointers from the context are NULL.
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, we drop any netlink data beyond our 4096-byte buffer. This
means that we can only parse a limited number of network interfaces.
This change uses recvmsg with MSG_PEEK to determine the size of an
incoming netlink message before doing the actual recvmsg. This way, we
can realloc our buffer to suit.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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We talloced tempfile, we should be freeing with talloc_free.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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We have a few allocations hanging around at the end of pb-discover; free
them.
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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Allocate parsers against a context, and free that context on exit.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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`make distcheck` fails with a couple of failes remaining after clean.
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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Currently, once the boot() function is called, the boot process will
ignore any cancellations.
This change allows boot() to be cancelled, via boot_cancel().
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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We'd like a way to cancel pending loads, as part of aborting the boot
process.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Allow URL-format specifiers for GRUB2 resources.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Only call find_boot_option_by_id if we have an ID.
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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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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The property strings are managed by the udev code, so we need to strdup.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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We need to do the rmdir after clearing mount_path.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Change f611bde3 shifted the config_init until after process_init, as we
need to run processes during config init. We also needed to move the
config_set_autoboot invocation too.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Valgrind reports an invalid usage of an uninitialised var in yyerror,
causing testcase failures.
Initialise lineno before we start parsing.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Use the new parser_request_file API to access the GRUB environment
block.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Use a copy of the name & value pairs that we pass to the environment, as
the data loaded from load_env will be talloc_free-ed.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Add a pair of functions to the parser API to allow write access to the
underlying device. We'll use this in the GRUB2 parser to implement
environment persistence.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Add a function to allow parsers to access files on a local device.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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We have parsers passing discover_contexts around, which we want to hook
into the test framework. Add a void * member, which the test code can
use to reference the test.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Check the return value from mount_device and abort the discover on
failure.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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When we start the discover server, we may find that devices are already
mounted. In this case, mount_device will fail, and we'll abort the
parse.
This change uses /proc/self/mounts to check if new devices are already
mounted, and uses the existing mount point.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Rather than printf() & exit(), use the pb logging functions and abort
the parse.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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The URL needs to share the lifetime of resource, so talloc_steal it in
create_url_resource.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Make the error case for local files the same as for remotes.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Now that we can download asynchronously, we can download boot resources
in parallel. This also means we don't need a state machine; we're either
not done (loads are still pending) or done.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Currently, load_url and load_url_async return a filename parameter and a
tempfile flag (indicating whether the file needs to be cleaned after
use).
Instead, encapsulate this data in a struct load_url_result, which the
caller (and async callbacks) can read the status, filename and clean
parameters.
For internal use in load_url and helpers, we add a struct load_task to
hold a pointer to the load_url_result and async data.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Rather than always trying both TFTP client types, do a runtime detection
on first invocation. This can be fixed at build-time with
--with-tftp=TYPE.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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... otherwise we won't clean up local files from earlier boot stages.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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Use the status argument to the URL load callback to check for load
failures.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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We don't need a pointer here, just the status value.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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The current boot process handled by boot() function is implemented such
that it blocks on the boot resources being downloaded which blocks
the discover process until the download completes. This patch
re-implements the boot() function using callback mechanism and
asynchronous notifications so that boot() returns to continue the
discover process while the download is in progress.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com>
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