discover/kboot-parser: Recognise 'default' parameter The kboot parser doesn't set a default option. Change it so that if we see the 'default' parameter we match against this value when deciding if an option should be set as default. For example: default=linux linux='/vmlinux initrd=/initrd arg1=value1 arg2' Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
discover/parser: Hookup parser_is_unique Signed-off-by: Geoff Levand <geoff@infradead.org> Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
discover/kboot-parser: Look in /boot Other parsers look in /boot for config files, so add it to the kboot parser. Signed-off-by: Geoff Levand <geoff@infradead.org> Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
discover/status: Add parse status for GRUB2, yaboot & kboot parsers Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Add support for GPG signature enforcement on booted kernels and related blobs This can be used to implement a form of organization-controlled secure boot, whereby kernels may be loaded from a variety of sources but they will only boot if a valid signature file is found for each component, and only if the signature is listed in the /etc/pb-lockdown file. Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com> Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com> (Minor build fixes and gpgme.m4, comment on secure boot in gpg.c)
configure: Use AC_GNU_SOURCE Rather than #defining _GNU_SOURCE in our .c files, we can define this from config.h instead. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
discover: Change parsers to explicitly request configuration files 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>
Add initial dtb support Updates & fixes by Jeremy Kerr <jk@ozlabs.org>. Signed-off-by: Geoff Levand <geoff@infradead.org> Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
discover: Always associate resources with a boot option We should always be tallocing resources to a boot option context; anything else (for example, the discover context) may have a different lifetime. In order to enforce this, we change the void *ctx argument to the context_create functions to a struct discover_boot_option. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
discover/kboot: Fix boot_option initialisation We're not populating d_opt->option, so are returning invalid boot options from the kboot parser. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
discover: Add configuration methods We'd like to be able to download petitboot configurations from other sources (not just local files), but we'll need some way to indicate to the parsers that a chunk of config data is from a specific source. This change adds "configuration methods". At present, we have only one: CONF_METHOD_LOCAL_FILE. For any incoming configuration data, we only run parsers that have registered themselves with that configuration method. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
parsers: dynamically register parsers Currently, we require all parsers to be defined in an array in parsers.c. This change removes this requirement, by introducting a register_parser() macro, which adds a constructor to register the parser with the core parser infrastructure. Because each parser no longer resolves an undefined symbol, we need to use a `ld -r` object for libparser, instead of using libtool, which creates a .a (and hence has no parsers included). Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
discover: Change parsers to emit resources rather than filenames This change switches the parsers over to populate the resources in discover_boot_option, rather than the string parameters in boot_option. To do this, we need a few things: * Add struct resources to discover_boot_option for the boot_image, initrd and icon data. * Have the parsers populate the resources, rather than the strings. Currently, parsers can all use the devpath resource type. * Add a resolve_resource callback to parsers; this is how the device handler will attempt to resolve resources. * Change load_file to load_url, as we should be only accessing (resolved) resources by URLs. This then allows us to remove the mount map, and associated lookup code, as well as the UUID and label links to devices. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
discover: Introduce a container type for boot options 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>
parsers: change parser.parse to accept a buffer Rather than having each of the parsers do their own open(), read(), etc, use the registered filenames array to find & open parser conf files. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
parsers: Add filenames to struct parser In preparation of moving file handling to the discover core (rather than the parsers), include the conf file names in struct parser. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
discover: Separate temporary and permanent device data At present, we keep both permanent (eg links/n_links) and temporary (event) data in struct discover_context. This change makes discover_context a temporary structure, just used during actual device discovery. Once discovery is complete, the permanent data (discover_device) is "committed" to the device handler. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
lib/types: Create common file for type definitions The device and boot_option types are defined in pb-protocol.h, but aren't really specific to the procotol. This means a lot of non-messaging-related files are #including the protocol definitions unnecessarily. This change separates the types out into lib/types/types.h. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Geoff Levand <geoff@infradead.org>
Minor comment fix Signed-off-by: Geoff Levand <geoff@infradead.org>
Add new member get_pair to conf parser context To allow parsers more control over finding paramerter pairs add a new member get_pair to the parser struct conf_context. Initialize get_pair=conf_get_pair_equal for existing parsers. Signed-off-by: Geoff Levand <geoff@infradead.org>