+ return ip_hex;
+}
+
+struct pb_url *user_event_parse_conf_url(struct discover_context *ctx,
+ struct event *event, bool *is_complete)
+{
+ const char *conffile, *pathprefix, *host, *bootfile, *bootfile_url;
+ char *p, *basedir, *url_str;
+ struct pb_url *url;
+
+ conffile = event_get_param(event, "pxeconffile");
+ pathprefix = event_get_param(event, "pxepathprefix");
+ bootfile = event_get_param(event, "bootfile");
+ bootfile_url = event_get_param(event, "bootfile_url");
+
+ /* If we're given a conf file, we're able to generate a complete URL to
+ * the configuration file, and the parser doesn't need to do any
+ * further autodiscovery */
+ *is_complete = !!conffile;
+
+ /* if conffile is a URL, that's all we need */
+ if (conffile && is_url(conffile)) {
+ url = pb_url_parse(ctx, conffile);
+ return url;
+ }
+
+ /* If we can create a URL from pathprefix (optionally with
+ * conffile appended to create a complete URL), use that */
+ if (pathprefix && is_url(pathprefix)) {
+ if (conffile) {
+ url_str = talloc_asprintf(ctx, "%s%s",
+ pathprefix, conffile);
+ url = pb_url_parse(ctx, url_str);
+ talloc_free(url_str);
+ } else {
+ url = pb_url_parse(ctx, pathprefix);
+ }
+
+ return url;
+ }
+
+ host = parse_host_addr(event);
+ if (!host) {
+ pb_log_fn("host address not found\n");
+
+ /* No full URLs and no host address? Check for DHCPv6 options */
+ if (bootfile_url && is_url(bootfile_url)) {
+ *is_complete = true;
+ return pb_url_parse(ctx, bootfile_url);
+ }
+ return NULL;
+ }
+
+ url_str = talloc_asprintf(ctx, "tftp://%s/", host);
+
+ /* if we have a pathprefix, use that directly.. */
+ if (pathprefix) {
+ /* strip leading slashes */
+ while (pathprefix[0] == '/')
+ pathprefix++;
+ url_str = talloc_asprintf_append(url_str, "%s", pathprefix);
+
+ /* ... otherwise, add a path based on the bootfile name, but only
+ * if conffile isn't an absolute path itself */
+ } else if (bootfile && !(conffile && conffile[0] == '/')) {
+
+ basedir = talloc_strdup(ctx, bootfile);
+
+ /* strip filename from the bootfile path, leaving only a
+ * directory */
+ p = strrchr(basedir, '/');
+ if (!p)
+ p = basedir;
+ *p = '\0';
+
+ if (strlen(basedir))
+ url_str = talloc_asprintf_append(url_str, "%s/",
+ basedir);
+
+ talloc_free(basedir);
+ }
+
+ /* finally, append conffile */
+ if (conffile)
+ url_str = talloc_asprintf_append(url_str, "%s", conffile);
+
+ url = pb_url_parse(ctx, url_str);
+
+ talloc_free(url_str);
+
+ return url;
+}
+
+char **user_event_parse_conf_filenames(
+ struct discover_context *ctx, struct event *event)
+{
+ char *mac_addr, *ip_hex;
+ const char *mac, *ip;
+ char **filenames;
+ int index, len;
+
+ mac = event_get_param(event, "mac");
+ if (mac)
+ mac_addr = parse_mac_addr(ctx, mac);
+ else
+ mac_addr = NULL;
+
+ ip = event_get_param(event, "ip");
+ if (ip) {
+ ip_hex = parse_ip_addr(ctx, ip);
+ len = strlen(ip_hex);
+ } else {
+ ip_hex = NULL;
+ len = 0;
+ }
+
+ if (!mac_addr && !ip_hex) {
+ pb_log_fn("neither mac nor ip parameter found\n");
+ return NULL;
+ }
+
+ /* Filenames as fallback IP's + mac + default */
+ filenames = talloc_array(ctx, char *, len + 3);
+
+ index = 0;
+ if (mac_addr)
+ filenames[index++] = talloc_strdup(filenames, mac_addr);
+
+ while (len) {
+ filenames[index++] = talloc_strdup(filenames, ip_hex);
+ ip_hex[--len] = '\0';
+ }
+
+ filenames[index++] = talloc_strdup(filenames, "default");
+ filenames[index++] = NULL;
+
+ if (mac_addr)
+ talloc_free(mac_addr);
+
+ if (ip_hex)
+ talloc_free(ip_hex);
+
+ return filenames;
+}
+
+static int user_event_dhcp(struct user_event *uev, struct event *event)
+{
+ struct device_handler *handler = uev->handler;
+ struct discover_device *dev;
+
+ uint8_t hwaddr[MAC_ADDR_SIZE];
+
+ if (!event_get_param(event, "mac"))
+ return -1;
+ if (!event_get_param(event, "ip") && !event_get_param(event, "ipv6"))
+ return -1;
+
+ sscanf(event_get_param(event, "mac"),
+ "%hhX:%hhX:%hhX:%hhX:%hhX:%hhX",
+ hwaddr, hwaddr + 1, hwaddr + 2,
+ hwaddr + 3, hwaddr + 4, hwaddr + 5);
+
+ if (event_get_param(event, "ipv6"))
+ system_info_set_interface_address(sizeof(hwaddr), hwaddr,
+ event_get_param(event, "ipv6"));
+ else
+ system_info_set_interface_address(sizeof(hwaddr), hwaddr,
+ event_get_param(event, "ip"));
+
+ dev = discover_device_create(handler, event_get_param(event, "mac"),
+ event->device);
+
+ device_handler_dhcp(handler, dev, event);
+
+ return 0;
+}
+
+static int user_event_add(struct user_event *uev, struct event *event)
+{
+ struct device_handler *handler = uev->handler;
+ struct discover_context *ctx;
+ struct discover_device *dev;
+ int rc;
+
+ /* In case this is a network interface, try to refer to it by UUID */
+ dev = discover_device_create(handler, event_get_param(event, "mac"),
+ event->device);
+ dev->device->id = talloc_strdup(dev, event->device);
+ ctx = device_handler_discover_context_create(handler, dev);
+
+ rc = parse_user_event(ctx, event);
+ if (rc) {
+ pb_log("parse_user_event returned %d\n", rc);
+ return rc;
+ }
+
+ device_handler_discover_context_commit(handler, ctx);
+
+ talloc_free(ctx);
+
+ return 0;
+}
+
+static int user_event_remove(struct user_event *uev, struct event *event)
+{
+ struct device_handler *handler = uev->handler;
+ struct discover_device *dev;
+ const char *mac = event_get_param(event, "mac");
+
+ if (mac)
+ dev = device_lookup_by_uuid(handler, event_get_param(event, "mac"));
+ else
+ dev = device_lookup_by_id(handler, event->device);
+
+ if (!dev)
+ return 0;
+
+ device_handler_remove(handler, dev);
+
+ return 0;
+}
+
+static int user_event_url(struct user_event *uev, struct event *event)
+{
+ struct device_handler *handler = uev->handler;
+ const char *url;
+
+ url = event_get_param(event, "url");
+ if (url)
+ device_handler_process_url(handler, url, NULL, NULL);
+
+ return 0;
+}
+
+static int user_event_boot(struct user_event *uev, struct event *event)
+{
+ struct device_handler *handler = uev->handler;
+ struct boot_command *cmd = talloc_zero(handler, struct boot_command);
+ struct discover_boot_option *opt;
+ const char *name;
+
+ name = event_get_param(event, "name");
+ if (name) {
+ pb_log("Finding boot option %s @ %s\n", name, event->device);
+ opt = device_handler_find_option_by_name(handler,
+ event->device, name);
+ if (!opt) {
+ pb_log("No option with name %s\n", name);
+ return -1;
+ }
+
+ pb_log("Found option with id %s!\n", opt->option->id);
+ cmd->option_id = talloc_strdup(cmd, opt->option->id);
+ } else {
+ pb_log("Booting based on full boot command\n");
+ cmd->option_id = talloc_strdup(cmd, event_get_param(event, "id"));
+ cmd->boot_image_file = talloc_strdup(cmd, event_get_param(event, "image"));
+ cmd->initrd_file = talloc_strdup(cmd, event_get_param(event, "initrd"));
+ cmd->dtb_file = talloc_strdup(cmd, event_get_param(event, "dtb"));
+ cmd->boot_args = talloc_strdup(cmd, event_get_param(event, "args"));
+ }
+
+ device_handler_boot(handler, false, cmd);
+
+ talloc_free(cmd);
+
+ return 0;
+}
+
+static int user_event_sync(struct user_event *uev, struct event *event)
+{
+ struct device_handler *handler = uev->handler;
+
+ if (strncasecmp(event->device, "all", strlen("all")) != 0)
+ device_sync_snapshots(handler, event->device);
+ else
+ device_sync_snapshots(handler, NULL);
+
+ return 0;
+}
+
+static int process_uninstalled_plugin(struct user_event *uev,
+ struct event *event)
+{
+ struct device_handler *handler = uev->handler;
+ struct discover_boot_option *file_opt;
+ struct discover_device *device;
+ struct discover_context *ctx;
+ const char *path;
+ struct resource *res;
+
+ if (!event_get_param(event, "path")) {
+ pb_log("Uninstalled pb-plugin event missing path param\n");
+ return -1;
+ }
+
+ device = device_lookup_by_name(handler, event->device);
+ if (!device) {
+ pb_log("Couldn't find device matching %s for plugin\n",
+ event->device);
+ return -1;
+ }
+
+ ctx = device_handler_discover_context_create(handler, device);
+ file_opt = discover_boot_option_create(ctx, device);
+ file_opt->option->name = talloc_strdup(file_opt,
+ event_get_param(event, "name"));
+ file_opt->option->id = talloc_asprintf(file_opt, "%s@%p",
+ device->device->id, file_opt);
+ file_opt->option->type = DISCOVER_PLUGIN_OPTION;
+
+
+ path = event_get_param(event, "path");
+ /* path may be relative to root */
+ if (strncmp(device->mount_path, path, strlen(device->mount_path)) == 0) {
+ path += strlen(device->mount_path) + 1;
+ }
+
+ res = talloc(file_opt, struct resource);
+ resolve_resource_against_device(res, device, path);
+ file_opt->boot_image = res;
+
+ discover_context_add_boot_option(ctx, file_opt);
+ device_handler_discover_context_commit(handler, ctx);
+
+ return 0;
+}
+
+/*
+ * Notification of a plugin event. This can either be for an uninstalled plugin
+ * that pb-plugin has scanned, or the result of a plugin that pb-plugin has
+ * installed.
+ */
+static int user_event_plugin(struct user_event *uev, struct event *event)
+{
+ struct device_handler *handler = uev->handler;
+ char *executable, *executables, *saveptr;
+ struct plugin_option *opt;
+ const char *installed;
+
+ installed = event_get_param(event, "installed");
+ if (!installed || strncmp(installed, "no", strlen("no")) == 0)
+ return process_uninstalled_plugin(uev, event);
+
+ opt = talloc_zero(handler, struct plugin_option);
+ if (!opt)
+ return -1;
+ opt->name = talloc_strdup(opt, event_get_param(event, "name"));
+ opt->id = talloc_strdup(opt, event_get_param(event, "id"));
+ opt->version = talloc_strdup(opt, event_get_param(event, "version"));
+ opt->vendor = talloc_strdup(opt, event_get_param(event, "vendor"));
+ opt->vendor_id = talloc_strdup(opt, event_get_param(event, "vendor_id"));
+ opt->date = talloc_strdup(opt, event_get_param(event, "date"));
+ opt->plugin_file = talloc_strdup(opt,
+ event_get_param(event, "source_file"));
+
+ executables = talloc_strdup(opt, event_get_param(event, "executables"));
+ if (!executables) {
+ talloc_free(opt);
+ return -1;
+ }
+
+ /*
+ * The 'executables' parameter is a space-delimited list of installed
+ * executables
+ */
+ executable = strtok_r(executables, " ", &saveptr);
+ while (executable) {
+ opt->executables = talloc_realloc(opt, opt->executables,
+ char *, opt->n_executables + 1);
+ if (!opt->executables) {
+ talloc_free(opt);
+ return -1;
+ }
+ opt->executables[opt->n_executables++] = talloc_strdup(opt,
+ executable);
+ executable = strtok_r(NULL, " ", &saveptr);
+ }
+
+ device_handler_add_plugin_option(handler, opt);
+
+ talloc_free(executables);
+
+ return 0;