#include "parser.h"
#include "parser-utils.h"
#include "paths.h"
+#include "file.h"
-struct parser __grub2_parser;
-struct parser __kboot_parser;
-struct parser __native_parser;
-struct parser __yaboot_parser;
-
-static const struct parser *const parsers[] = {
-// &__native_parser,
- &__kboot_parser,
- &__grub2_parser,
- &__yaboot_parser,
- NULL
+struct p_item {
+ struct list_item list;
+ struct parser *parser;
};
-static const int max_file_size = 1024 * 1024;
+STATIC_LIST(parsers);
-static int read_file(struct discover_context *ctx,
- const char *filename, char **bufp, int *lenp)
+static char *local_path(struct discover_context *ctx,
+ const char *filename)
{
- struct stat statbuf;
- int rc, fd, i, len;
- char *buf;
-
- fd = open(filename, O_RDONLY);
- if (fd < 0)
- return -1;
-
- rc = fstat(fd, &statbuf);
- if (rc < 0)
- goto err_close;
-
- len = statbuf.st_size;
- if (len > max_file_size)
- goto err_close;
-
- buf = talloc_array(ctx, char, len);
- if (!buf)
- goto err_close;
-
- for (i = 0; i < len; i += rc) {
- rc = read(fd, buf + i, len - i);
+ return join_paths(ctx, ctx->device->mount_path, filename);
+}
- /* unexpected EOF: trim and return */
- if (rc == 0) {
- len = i;
- break;
- }
+static int download_config(struct discover_context *ctx, char **buf, int *len)
+{
+ unsigned tempfile;
+ const char *file;
+ int rc;
- if (rc < 0)
- goto err_free;
+ file = load_url(ctx, ctx->conf_url, &tempfile);
+ if (!file)
+ return -1;
- }
+ rc = read_file(ctx, file, buf, len);
+ if (rc)
+ goto out_clean;
- close(fd);
- *bufp = buf;
- *lenp = len;
return 0;
-err_free:
- talloc_free(buf);
-err_close:
- close(fd);
+out_clean:
+ if (tempfile)
+ unlink(file);
return -1;
}
-static char *local_path(struct discover_context *ctx,
- const char *filename)
-{
- return join_paths(ctx, ctx->device->mount_path, filename);
-}
-
static void iterate_parser_files(struct discover_context *ctx,
const struct parser *parser)
{
rc = read_file(ctx, path, &buf, &len);
if (!rc) {
+ pb_log("Running parser %s on file %s\n",
+ parser->name, *filename);
parser->parse(ctx, buf, len);
talloc_free(buf);
}
}
}
-void iterate_parsers(struct discover_context *ctx)
+void iterate_parsers(struct discover_context *ctx, enum conf_method method)
{
- int i;
+ struct p_item* i;
+ int rc, len;
+ char *buf;
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);
- iterate_parser_files(ctx, parsers[i]);
+ switch (method) {
+ case CONF_METHOD_LOCAL_FILE:
+ list_for_each_entry(&parsers, i, list) {
+ if (i->parser->method != CONF_METHOD_LOCAL_FILE)
+ continue;
+
+ pb_log("\ttrying parser '%s'\n", i->parser->name);
+ ctx->parser = i->parser;
+ iterate_parser_files(ctx, ctx->parser);
+ }
+ ctx->parser = NULL;
+ break;
+
+ case CONF_METHOD_DHCP:
+ rc = download_config(ctx, &buf, &len);
+ if (rc) {
+ pb_log("\tdownload failed, aborting\n");
+ return;
+ }
+
+ list_for_each_entry(&parsers, i, list) {
+ if (i->parser->method != method)
+ continue;
+
+ pb_log("\ttrying parser '%s'\n", i->parser->name);
+ ctx->parser = i->parser;
+ i->parser->parse(ctx, buf, len);
+ }
+
+ break;
+
+ case CONF_METHOD_UNKNOWN:
+ break;
+
}
}
+void __register_parser(struct parser *parser)
+{
+ struct p_item* i = talloc(NULL, struct p_item);
+
+ printf("%s: %s\n", __func__, parser->name);
+
+ i->parser = parser;
+ list_add(&parsers, &i->list);
+}
+
void parser_init(void)
{
}