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, 0 insertions, 288 deletions

diff --git a/devices/kboot-parser.c b/devices/kboot-parser.c
deleted file mode 100644
index df2e762..0000000
--- a/devices/kboot-parser.c
+++ /dev/null
@@ -1,288 +0,0 @@
-#define _GNU_SOURCE
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
-#include <unistd.h>
-
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include "parser.h"
-#include "params.h"
-
-#define buf_size 1024
-
-static const char *devpath;
-
-static int param_is_ignored(const char *param)
-{
-	static const char *ignored_options[] =
-		{ "message", "timeout", "default", NULL };
-	const char **str;
-
-	for (str = ignored_options; *str; str++)
-		if (streq(*str, param))
-			return 1;
-	return 0;
-}
-
-/**
- * Splits a name=value pair, with value terminated by @term (or nul). if there
- * is no '=', then only the value is populated, and *name is set to NULL. The
- * string is modified in place.
- *
- * Returns the next byte to process, or null if we've hit the end of the
- * string.
- *
- * */
-static char *get_param_pair(char *str, char **name_out, char **value_out,
-		char terminator)
-{
-	char *sep, *tmp, *name, *value;
-
-	/* terminate the value */
-	tmp = strchr(str, terminator);
-	if (tmp)
-		*tmp = 0;
-	else
-		tmp = NULL;
-
-	sep = strchr(str, '=');
-	if (!sep) {
-		*name_out = NULL;
-		*value_out = str;
-		return tmp ? tmp + 1 : NULL;
-	}
-
-	/* terminate the name */
-	*sep = 0;
-
-	/* remove leading spaces */
-	for (name = str; isspace(*name); name++);
-	for (value = sep + 1; isspace(*value); value++);
-
-	/* .. and trailing ones.. */
-	for (sep--; isspace(*sep); sep--)
-		*sep = 0;
-	for (sep = value + strlen(value) - 1; isspace(*sep); sep--)
-		*sep = 0;
-
-	*name_out = name;
-	*value_out = value;
-
-	return tmp ? tmp + 1 : NULL;
-}
-
-struct global_option {
-	char *name;
-	char *value;
-};
-
-
-static struct global_option global_options[] = {
-	{ .name = "root" },
-	{ .name = "initrd" },
-	{ .name = "video" },
-	{ .name = NULL }
-};
-
-/*
- * Check if an option (name=value) is a global option. If so, store it in
- * the global options table, and return 1. Otherwise, return 0.
- */
-static int check_for_global_option(const char *name, const char *value)
-{
-	int i;
-
-	for (i = 0; global_options[i].name ;i++) {
-		if (!strcmp(name, global_options[i].name)) {
-			global_options[i].value = strdup(value);
-			return 1;
-		}
-	}
-	return 0;
-}
-
-static char *get_global_option(const char *name)
-{
-	int i;
-
-	for (i = 0; global_options[i].name ;i++)
-		if (!strcmp(name, global_options[i].name))
-			return global_options[i].value;
-
-	return NULL;
-}
-
-static int parse_option(struct boot_option *opt, char *config)
-{
-	char *pos, *name, *value, *root, *initrd, *cmdline, *tmp;
-
-	root = initrd = cmdline = NULL;
-
-	/* remove quotes around the value */
-	while (*config == '"' || *config == '\'')
-		config++;
-
-	pos = config + strlen(config) - 1;
-	while (*pos == '"' || *pos == '\'')
-		*(pos--) = 0;
-
-	if (!strlen(pos))
-		return 0;
-
-	pos = strchr(config, ' ');
-
-	/* if there's no space, it's only a kernel image with no params */
-	if (!pos) {
-		opt->boot_image_file = resolve_path(config, devpath);
-		opt->description = strdup(config);
-		return 1;
-	}
-
-	*pos = 0;
-	opt->boot_image_file = resolve_path(config, devpath);
-
-	cmdline = malloc(buf_size);
-	*cmdline = 0;
-
-	for (pos++; pos;) {
-		pos = get_param_pair(pos, &name, &value, ' ');
-
-		if (!name) {
-			strcat(cmdline, " ");
-			strcat(cmdline, value);
-
-		} else if (streq(name, "initrd")) {
-			initrd = value;
-
-		} else if (streq(name, "root")) {
-			root = value;
-
-		} else {
-			strcat(cmdline, " ");
-			*(value - 1) = '=';
-			strcat(cmdline, name);
-		}
-	}
-
-	if (!root)
-		root = get_global_option("root");
-	if (!initrd)
-		initrd = get_global_option("initrd");
-
-	if (initrd) {
-		asprintf(&tmp, "initrd=%s %s", initrd, cmdline);
-		free(cmdline);
-		cmdline = tmp;
-
-		opt->initrd_file = resolve_path(initrd, devpath);
-	}
-
-	if (root) {
-		asprintf(&tmp, "root=%s %s", root, cmdline);
-		free(cmdline);
-		cmdline = tmp;
-
-	} else if (initrd) {
-		/* if there's an initrd but no root, fake up /dev/ram0 */
-		asprintf(&tmp, "root=/dev/ram0 %s", cmdline);
-		free(cmdline);
-		cmdline = tmp;
-	}
-
-	pb_log("kboot cmdline: %s\n", cmdline);
-	opt->boot_args = cmdline;
-
-	asprintf(&opt->description, "%s %s",
-			config, opt->boot_args);
-
-	return 1;
-}
-
-static void parse_buf(struct device *dev, char *buf)
-{
-	char *pos, *name, *value;
-	int sent_device = 0;
-
-	for (pos = buf; pos;) {
-		struct boot_option opt;
-
-		pos = get_param_pair(pos, &name, &value, '\n');
-
-		pb_log("kboot param: '%s' = '%s'\n", name, value);
-
-		if (name == NULL || param_is_ignored(name))
-			continue;
-
-		if (*name == '#')
-			continue;
-
-		if (check_for_global_option(name, value))
-			continue;
-
-		memset(&opt, 0, sizeof(opt));
-		opt.name = strdup(name);
-
-		if (parse_option(&opt, value))
-			if (!sent_device++)
-				add_device(dev);
-			add_boot_option(&opt);
-
-		free(opt.name);
-	}
-}
-
-static int parse(const char *device)
-{
-	char *filepath, *buf;
-	int fd, len, rc = 0;
-	struct stat stat;
-	struct device *dev;
-
-	devpath = device;
-
-	filepath = resolve_path("/etc/kboot.conf", devpath);
-
-	fd = open(filepath, O_RDONLY);
-	if (fd < 0)
-		goto out_free_path;
-
-	if (fstat(fd, &stat))
-		goto out_close;
-
-	buf = malloc(stat.st_size + 1);
-	if (!buf)
-		goto out_close;;
-
-	len = read(fd, buf, stat.st_size);
-	if (len < 0)
-		goto out_free_buf;
-	buf[len] = 0;
-
-	dev = malloc(sizeof(*dev));
-	memset(dev, 0, sizeof(*dev));
-	dev->id = strdup(device);
-	dev->icon_file = strdup(generic_icon_file(guess_device_type()));
-
-	parse_buf(dev, buf);
-
-	rc = 1;
-
-out_free_buf:
-	free(buf);
-out_close:
-	close(fd);
-out_free_path:
-	free(filepath);
-	return rc;
-}
-
-struct parser kboot_parser = {
-	.name = "kboot.conf parser",
-	.priority = 98,
-	.parse	  = parse
-};