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authorJeremy Kerr <jk@ozlabs.org>2013-03-19 15:42:51 +0800
committerJeremy Kerr <jk@ozlabs.org>2013-04-29 14:48:09 +1000
commita51e41eb1d2545b7eb03ff02604225b9594b11e7 (patch)
tree24b7f2f8da537fecc9b146988197147495eff07f /discover
parent19dab336ae13f0476bfbf0db34f1329a802eeb8e (diff)
downloadtalos-petitboot-a51e41eb1d2545b7eb03ff02604225b9594b11e7.tar.gz
talos-petitboot-a51e41eb1d2545b7eb03ff02604225b9594b11e7.zip
discover: Add PXE parser
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Diffstat (limited to 'discover')
-rw-r--r--discover/Makefile.am3
-rw-r--r--discover/pxe-parser.c78
2 files changed, 80 insertions, 1 deletions
diff --git a/discover/Makefile.am b/discover/Makefile.am
index 8cbb0af..ce8cff5 100644
--- a/discover/Makefile.am
+++ b/discover/Makefile.am
@@ -32,7 +32,8 @@ libparser_o_SOURCES = \
resource.h \
kboot-parser.c \
grub2-parser.c \
- yaboot-parser.c
+ yaboot-parser.c \
+ pxe-parser.c
libparser.o: $(libparser_o_OBJECTS)
$(LD) -r -o $@ $^
diff --git a/discover/pxe-parser.c b/discover/pxe-parser.c
new file mode 100644
index 0000000..662716a
--- /dev/null
+++ b/discover/pxe-parser.c
@@ -0,0 +1,78 @@
+
+#include <string.h>
+
+#include <talloc/talloc.h>
+#include <url/url.h>
+
+#include "parser.h"
+#include "parser-conf.h"
+#include "parser-utils.h"
+#include "resource.h"
+
+static void pxe_finish(struct conf_context *conf)
+{
+ printf("%s\n", __func__);
+ discover_context_add_boot_option(conf->dc, conf->parser_info);
+}
+
+static void pxe_process_pair(struct conf_context *ctx,
+ const char *name, char *value)
+{
+ struct discover_boot_option *opt = ctx->parser_info;
+ struct pb_url *url;
+
+ if (streq(name, "LABEL")) {
+ if (opt)
+ pxe_finish(ctx);
+
+ opt = discover_boot_option_create(ctx->dc, ctx->dc->device);
+ ctx->parser_info = opt;
+
+ opt->option->device_id = ctx->dc->device->device->id;
+ opt->option->name = talloc_strdup(opt, value);
+ opt->option->id = talloc_asprintf(opt, "%s@%p",
+ opt->option->device_id, opt);
+ return;
+ }
+
+ /* all other parameters need an option */
+ if (!opt)
+ return;
+
+ if (streq(name, "KERNEL")) {
+ url = pb_url_join(ctx->dc, ctx->dc->conf_url, value);
+ opt->boot_image = create_url_resource(opt, url);
+
+ } else if (streq(name, "APPEND")) {
+ opt->option->boot_args = talloc_strdup(opt->option, value);
+ /* todo: initrd extraction */
+ }
+}
+
+static int pxe_parse(struct discover_context *dc, char *buf, int len)
+{
+ struct conf_context *conf;
+
+ conf = talloc_zero(dc, struct conf_context);
+
+ if (!conf)
+ return 0;
+
+ conf->dc = dc;
+ conf->get_pair = conf_get_pair_space;
+ conf->process_pair = pxe_process_pair;
+ conf->finish = pxe_finish;
+
+ conf_parse_buf(conf, buf, len);
+
+ talloc_free(conf);
+ return 1;
+}
+
+static struct parser pxe_parser = {
+ .name = "pxe",
+ .parse = pxe_parse,
+ .method = CONF_METHOD_DHCP,
+};
+
+register_parser(pxe_parser);
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