+#include <fcntl.h>
#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.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 "log.h"
#include "parser.h"
#include "parser-utils.h"
+#include "paths.h"
-extern struct parser __start_parsers[], __stop_parsers[];
+struct p_item {
+ struct list_item list;
+ struct parser *parser;
+};
-void iterate_parsers(struct discover_context *ctx)
+STATIC_LIST(parsers);
+
+static char *local_path(struct discover_context *ctx,
+ struct discover_device *dev,
+ const char *filename)
{
- struct parser *parser;
+ return join_paths(ctx, dev->mount_path, filename);
+}
- pb_log("trying parsers for %s\n", ctx->device_path);
+int parser_request_file(struct discover_context *ctx,
+ struct discover_device *dev, const char *filename,
+ char **buf, int *len)
- for (parser = __start_parsers; parser < __stop_parsers; parser++) {
- pb_log("\ttrying parser '%s'\n", parser->name);
- /* just use a dummy device path for now */
- if (parser->parse(ctx))
- return;
- }
- pb_log("\tno boot_options found\n");
+{
+ 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;
}
-static int compare_parsers(const void *a, const void *b)
+int parser_check_dir(struct discover_context *ctx,
+ struct discover_device *dev, const char *dirname)
{
- const struct parser *parser_a = a, *parser_b = b;
+ struct stat statbuf;
+ char *path;
+ int rc;
- if (parser_a->priority > parser_b->priority)
+ if (!dev->mount_path)
return -1;
- if (parser_a->priority < parser_b->priority)
- return 1;
+ path = local_path(ctx, dev, dirname);
+
+ rc = stat(path, &statbuf);
+ if (!rc)
+ return -1;
+
+ return S_ISDIR(statbuf.st_mode) ? 0 : -1;
+}
+
+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)
+{
+ struct p_item* i;
+
+ pb_log("trying parsers for %s\n", ctx->device->device->id);
+
+ list_for_each_entry(&parsers, i, list) {
+ pb_debug("\ttrying parser '%s'\n", i->parser->name);
+ ctx->parser = i->parser;
+ i->parser->parse(ctx);
+ }
+ 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)
{
- /* sort our parsers into descending priority order */
- qsort(__start_parsers, __stop_parsers - __start_parsers,
- sizeof(struct parser), compare_parsers);
}