Initial support for multiple UIs

Move the device discovery code from separate udev helpers to a single
process to listen on two sockets: one SOCK_DGRAM for incoming udev
events, and one SOCK_STREAM for UIs to connect.

Initial support for client/server infrastructure, still need to wire-up
the udev messages.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

1 files changed, 124 insertions, 0 deletions

diff --git a/discover/native-parser.c b/discover/native-parser.c
new file mode 100644
index 0000000..24713b1
--- /dev/null
+++ b/discover/native-parser.c
@@ -0,0 +1,124 @@
+
+#include "parser.h"
+#include "params.h"
+#include "paths.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+const char *conf_filename = "/boot/petitboot.conf";
+
+static struct boot_option *cur_opt;
+static struct device *dev;
+static const char *devpath;
+int device_added;
+
+int check_and_add_device(struct device *dev)
+{
+	if (!dev->icon_file)
+		dev->icon_file = strdup(generic_icon_file(guess_device_type()));
+
+	return !add_device(dev);
+}
+
+static int section(char *section_name)
+{
+	if (!device_added++ && !check_and_add_device(dev))
+		return 0;
+
+	if (cur_opt) {
+		add_boot_option(cur_opt);
+		free_boot_option(cur_opt);
+	}
+
+	cur_opt = malloc(sizeof(*cur_opt));
+	memset(cur_opt, 0, sizeof(*cur_opt));
+	return 1;
+}
+
+
+static void set_boot_option_parameter(struct boot_option *opt,
+		const char *name, const char *value)
+{
+	if (streq(name, "name"))
+		opt->name = strdup(value);
+
+	else if (streq(name, "description"))
+		opt->description = strdup(value);
+
+	else if (streq(name, "image"))
+		opt->boot_image_file = resolve_path(value, devpath);
+
+	else if (streq(name, "icon"))
+		opt->icon_file = resolve_path(value, devpath);
+
+	else if (streq(name, "initrd"))
+		opt->initrd_file =resolve_path(value, devpath);
+
+	else if (streq(name, "args"))
+		opt->boot_args = strdup(value);
+
+	else
+		fprintf(stderr, "Unknown parameter %s\n", name);
+}
+
+static void set_device_parameter(struct device *dev,
+		const char *name, const char *value)
+{
+	if (streq(name, "name"))
+		dev->name = strdup(value);
+
+	else if (streq(name, "description"))
+		dev->description = strdup(value);
+
+	else if (streq(name, "icon"))
+		dev->icon_file = resolve_path(value, devpath);
+}
+
+static int parameter(char *param_name, char *param_value)
+{
+	if (cur_opt)
+		set_boot_option_parameter(cur_opt, param_name, param_value);
+	else
+		set_device_parameter(dev, param_name, param_value);
+	return 1;
+}
+
+
+int parse(const char *device)
+{
+	char *filepath;
+	int rc;
+
+	filepath = resolve_path(conf_filename, device);
+
+	cur_opt = NULL;
+	dev = malloc(sizeof(*dev));
+	memset(dev, 0, sizeof(*dev));
+	dev->id = strdup(device);
+
+	rc = pm_process(filepath, section, parameter);
+	if (!rc)
+		return 0;
+
+	if (cur_opt) {
+		add_boot_option(cur_opt);
+		free_boot_option(cur_opt);
+	}
+
+	cur_opt = NULL;
+
+	free(filepath);
+
+	return 1;
+}
+
+struct parser native_parser = {
+	.name = "native petitboot parser",
+	.priority = 100,
+	.parse	  = parse
+};
+
+
+