From 2ea5eb23b027519372dd20fbe8f958c06ac2aa6c Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Mon, 16 Sep 2013 15:12:13 +0800 Subject: discover/grub2: Hook up flex/bison parser to discover server Signed-off-by: Jeremy Kerr --- discover/grub2/grub2.c | 103 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 discover/grub2/grub2.c (limited to 'discover/grub2/grub2.c') diff --git a/discover/grub2/grub2.c b/discover/grub2/grub2.c new file mode 100644 index 0000000..ebc6ac7 --- /dev/null +++ b/discover/grub2/grub2.c @@ -0,0 +1,103 @@ + +#include + +#include + +#include +#include +#include + +#include "grub2.h" +#include "parser.h" +#include "lexer.h" + +static const char *const grub2_conf_files[] = { + "/grub.cfg", + "/menu.lst", + "/grub/grub.cfg", + "/grub2/grub.cfg", + "/grub/menu.lst", + "/boot/grub/grub.cfg", + "/boot/grub2/grub.cfg", + "/boot/grub/menu.lst", + "/GRUB.CFG", + "/MENU.LST", + "/GRUB/GRUB.CFG", + "/GRUB2/GRUB.CFG", + "/GRUB/MENU.LST", + "/BOOT/GRUB/GRUB.CFG", + "/BOOT/GRUB/MENU.LST", + NULL +}; + +struct grub2_resource_info { + struct grub2_root *root; + char *path; +}; + +/* we use slightly different resources for grub2 */ +struct resource *create_grub2_resource(void *ctx, + struct discover_device *orig_device, + struct grub2_root *root, const char *path) +{ + struct grub2_resource_info *info; + struct resource *res; + + res = talloc(ctx, struct resource); + + if (root) { + info = talloc(res, struct grub2_resource_info); + info->root = root; + talloc_reference(info, root); + info->path = talloc_strdup(info, path); + + res->resolved = false; + res->info = info; + + } else + resolve_resource_against_device(res, orig_device, path); + + return res; +} + +bool resolve_grub2_resource(struct device_handler *handler, + struct resource *res) +{ + struct grub2_resource_info *info = res->info; + struct discover_device *dev; + + assert(!res->resolved); + + dev = device_lookup_by_uuid(handler, info->root->uuid); + + if (!dev) + return false; + + resolve_resource_against_device(res, dev, info->path); + talloc_free(info); + + return true; +} + +static int grub2_parse(struct discover_context *dc, char *buf, int len) +{ + struct grub2_parser *parser; + + parser = grub2_parser_create(dc); + + grub2_parser_parse(parser, buf, len); + + talloc_free(parser); + + return 1; +} + +static struct parser grub2_parser = { + .name = "grub2", + .method = CONF_METHOD_LOCAL_FILE, + .parse = grub2_parse, + .filenames = grub2_conf_files, + .resolve_resource = resolve_grub2_resource, +}; + +register_parser(grub2_parser); -- cgit v1.2.1