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* discover/grub2: Allow URL resourcesJeremy Kerr2013-10-142-3/+10
| | | | | | Allow URL-format specifiers for GRUB2 resources. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover: Allow device_handler_boot with no optionJeremy Kerr2013-10-101-2/+3
| | | | | | Only call find_boot_option_by_id if we have an ID. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover: remove register_parser printfJeremy Kerr2013-10-091-2/+0
| | | | Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/sysinfo: Add helper script to populate sysinfo identifiersJeremy Kerr2013-10-092-3/+33
| | | | Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* Add system info messagesJeremy Kerr2013-10-097-0/+128
| | | | | | | | 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>
* discover/udev: dup property values returned from udevJeremy Kerr2013-10-091-2/+7
| | | | | | The property strings are managed by the udev code, so we need to strdup. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/device-handler: Fix use-after-free when unmountingJeremy Kerr2013-10-091-2/+3
| | | | | | We need to do the rmdir after clearing mount_path. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover: Don't call config_set_autoboot before config_initJeremy Kerr2013-10-091-3/+2
| | | | | | | | 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>
* discover/grub2: Fix uninitialised yylinenoJeremy Kerr2013-10-041-0/+1
| | | | | | | | | 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>
* discover/grub2: Implement save_env commandJeremy Kerr2013-10-042-5/+166
| | | | Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Implement load_envJeremy Kerr2013-10-013-0/+116
| | | | | | | Use the new parser_request_file API to access the GRUB environment block. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: strdup strings used in the environmentJeremy Kerr2013-10-011-4/+6
| | | | | | | 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>
* discover/grub2: Add default prefixJeremy Kerr2013-10-011-1/+3
| | | | Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover: Add device_{request,release}_writeJeremy Kerr2013-10-014-3/+95
| | | | | | | | 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>
* discover: Add parser_request_fileJeremy Kerr2013-10-012-2/+28
| | | | | | Add a function to allow parsers to access files on a local device. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover: Add test_data member to struct discover_contextJeremy Kerr2013-10-012-0/+2
| | | | | | | | 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>
* discover: Don't continue discovery if mount failsJeremy Kerr2013-10-011-1/+5
| | | | | | | Check the return value from mount_device and abort the discover on failure. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover: Allow for already-mounted devicesJeremy Kerr2013-10-012-9/+84
| | | | | | | | | | | 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>
* discover/grub2: Clean up error-handling for grub2 parser & lexerJeremy Kerr2013-09-263-16/+19
| | | | | | | Rather than printf() & exit(), use the pb logging functions and abort the parse. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/resource: create_url_resource should take ownership of urlJeremy Kerr2013-09-261-0/+1
| | | | | | | 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>
* discover/paths: Check local file URLs in load_urlJeremy Kerr2013-09-261-3/+20
| | | | | | Make the error case for local files the same as for remotes. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/boot: Log boot status updatesJeremy Kerr2013-09-261-0/+2
| | | | Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/boot: Download resources in parallelJeremy Kerr2013-09-261-104/+64
| | | | | | | | 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>
* discover: Add struct load_url_result and load_taskJeremy Kerr2013-09-264-307/+287
| | | | | | | | | | | | | | | 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>
* discover: Don't depend on tftp failure for type detectionJeremy Kerr2013-09-261-40/+69
| | | | | | | | 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>
* discover/boot: Store clean_* in the boot taskJeremy Kerr2013-09-261-9/+9
| | | | | | ... otherwise we won't clean up local files from earlier boot stages. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/boot: Check for failed loads in boot()Jeremy Kerr2013-09-251-14/+33
| | | | | | | Use the status argument to the URL load callback to check for load failures. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover: load_url_async callback should take an int statusJeremy Kerr2013-09-253-15/+5
| | | | | | We don't need a pointer here, just the status value. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/boot: Implement asynchronous boot() processNeelesh Gupta2013-09-251-82/+137
| | | | | | | | | | | | 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>
* discover: Add an asynchronous version of load_urlNeelesh Gupta2013-09-252-22/+143
| | | | | | | | | | | A new load_url_async() function handles retrieving the resources by forking an external process which currently blocks the parent waiting for the process to complete. This patch modifies the load_*() functions to handle it asynchronously by providing the exit callback and returning without waiting for the child process to exit. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com>
* discover/grub2: Reimplement default optionsJeremy Kerr2013-09-252-2/+24
| | | | Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover: Check for devices with duplicate serial propertiesJeremy Kerr2013-09-243-0/+23
| | | | | | | | | If we have multipath devices present in the system, we'll end up with duplicate mounts, parse results and boot options. This change adds a check to see if we've encountered a device with this serial number previously. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Fix uninitialised op variableJeremy Kerr2013-09-241-0/+1
| | | | Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Support var=value assignmentsJeremy Kerr2013-09-241-0/+12
| | | | | | We want to allow assignments outside of the 'set' builtin. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Add true & false builtinsJeremy Kerr2013-09-241-0/+24
| | | | Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2/lexer: Require 1+ spaces for a TOKEN_DELIMJeremy Kerr2013-09-241-1/+1
| | | | Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Add linux16 commandJeremy Kerr2013-09-241-0/+4
| | | | Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Allow both delimiters and EOLs after a "then" reserved wordJeremy Kerr2013-09-241-2/+4
| | | | | | | | | | | Putting an if-statement on one line should be possible: if true; then echo "true"; else echo "false"; fi To do this, we'll need to allow both EOLs and TOKEN_DELIM after then and else. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Implement test builtinJeremy Kerr2013-09-241-1/+117
| | | | | | A faily simple implementation now, and could do with some testing... Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Add nops for unnecessary builtinsJeremy Kerr2013-09-241-0/+15
| | | | Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Implement statement_block_executeJeremy Kerr2013-09-243-1/+12
| | | | Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: unknown commands should failJeremy Kerr2013-09-241-1/+1
| | | | Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Populate option idsJeremy Kerr2013-09-241-0/+3
| | | | Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Allow EOF as a statement terminatorJeremy Kerr2013-09-241-1/+4
| | | | | | Files may not have a trailing newline. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Add print_tokenJeremy Kerr2013-09-241-0/+10
| | | | | | For better trace output. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: fix comment handlingJeremy Kerr2013-09-241-3/+2
| | | | | | | Remove '#' from the list of word chars. Also, don't need the '$' char in the comment regex Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Implement 'elif'Jeremy Kerr2013-09-243-9/+31
| | | | | | | Rather than just having one conditional in an if statement, we use a list of conditionals instead. This allows us to implement elif. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Create 'conditional' statementsJeremy Kerr2013-09-243-31/+65
| | | | | | | | Rather than holding the condition and conditional-statements in struct grub2_statment_if, create a new conditional type that contains these. We can then use this to implement elif statements. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Allow empty statementsJeremy Kerr2013-09-241-14/+12
| | | | | | | | Re-arrange the script/statements parse rules to allow empty statements. We also move the EOL token out of the 'statement' definition, and use it to separate 'statements'. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* discover/grub2: Implement submenuJeremy Kerr2013-09-242-0/+8
| | | | | | | Just recurse into the submenu items, as we flatten everything into the one menu. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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