+#include <fcntl.h>
#include <stdlib.h>
-#include "pb-protocol/pb-protocol.h"
+#include "types/types.h"
+#include <file/file.h>
#include <log/log.h>
+#include <talloc/talloc.h>
#include "device-handler.h"
#include "parser.h"
#include "parser-utils.h"
+#include "paths.h"
-struct parser __native_parser;
-struct parser __yaboot_parser;
-struct parser __kboot_parser;
-struct parser __grub2_parser;
-
-static const struct parser *const parsers[] = {
-// &__native_parser,
- &__yaboot_parser,
- &__kboot_parser,
- NULL
+struct p_item {
+ struct list_item list;
+ struct parser *parser;
};
+STATIC_LIST(parsers);
+
+static char *local_path(struct discover_context *ctx,
+ struct discover_device *dev,
+ const char *filename)
+{
+ return join_paths(ctx, dev->root_path, filename);
+}
+
+int parser_request_file(struct discover_context *ctx,
+ struct discover_device *dev, const char *filename,
+ char **buf, int *len)
+
+{
+ char *path;
+ int rc;
+
+ /* we only support local files at present */
+ if (!dev->mount_path)
+ return -1;
+
+ path = local_path(ctx, dev, filename);
+
+ rc = read_file(ctx, path, buf, len);
+
+ talloc_free(path);
+
+ return rc;
+}
+
+int parser_stat_path(struct discover_context *ctx,
+ struct discover_device *dev, const char *path,
+ struct stat *statbuf)
+{
+ int rc = -1;
+ char *full_path;
+
+ /* we only support local files at present */
+ if (!dev->mount_path)
+ return -1;
+
+ full_path = local_path(ctx, dev, path);
+
+ rc = stat(full_path, statbuf);
+ if (rc) {
+ rc = -1;
+ goto out;
+ }
+
+ rc = 0;
+out:
+ talloc_free(full_path);
+
+ return rc;
+}
+
+int parser_replace_file(struct discover_context *ctx,
+ struct discover_device *dev, const char *filename,
+ char *buf, int len)
+{
+ bool release;
+ char *path;
+ int rc;
+
+ if (!dev->mounted)
+ return -1;
+
+ rc = device_request_write(dev, &release);
+ if (rc) {
+ pb_log("Can't write file %s: device doesn't allow write\n",
+ dev->device_path);
+ return -1;
+ }
+
+ path = local_path(ctx, dev, filename);
+
+ rc = replace_file(path, buf, len);
+
+ talloc_free(path);
+
+ device_release_write(dev, release);
+
+ return rc;
+}
+
+int parser_request_url(struct discover_context *ctx, struct pb_url *url,
+ char **buf, int *len)
+{
+ struct load_url_result *result;
+ int rc;
+
+ result = load_url(ctx, url);
+ if (!result)
+ goto out;
+
+ rc = read_file(ctx, result->local, buf, len);
+ if (rc) {
+ pb_log("Read failed for the parser %s on file %s\n",
+ ctx->parser->name, result->local);
+ goto out_clean;
+ }
+
+ return 0;
+
+out_clean:
+ if (result->cleanup_local)
+ unlink(result->local);
+out:
+ return -1;
+}
+
void iterate_parsers(struct discover_context *ctx)
{
- int i;
- unsigned int count = 0;
+ struct p_item* i;
- pb_log("trying parsers for %s\n", ctx->device_path);
+ pb_log("trying parsers for %s\n", ctx->device->device->id);
- for (i = 0; parsers[i]; i++) {
- pb_log("\ttrying parser '%s'\n", parsers[i]->name);
- count += parsers[i]->parse(ctx);
+ list_for_each_entry(&parsers, i, list) {
+ pb_debug("\ttrying parser '%s'\n", i->parser->name);
+ ctx->parser = i->parser;
+ i->parser->parse(ctx);
}
- if (!count)
- pb_log("\tno boot_options found\n");
+ ctx->parser = NULL;
+}
+
+static void *parsers_ctx;
+
+void __register_parser(struct parser *parser)
+{
+ struct p_item *i;
+
+ if (!parsers_ctx)
+ parsers_ctx = talloc_new(NULL);
+
+ i = talloc(parsers_ctx, struct p_item);
+ i->parser = parser;
+ list_add(&parsers, &i->list);
+}
+
+static __attribute__((destructor)) void cleanup_parsers(void)
+{
+ talloc_free(parsers_ctx);
}
void parser_init(void)