+
+static int parse_hwaddr(struct interface_config *ifconf, const char *str)
+{
+ int i;
+
+ if (strlen(str) != strlen("00:00:00:00:00:00"))
+ return -1;
+
+ for (i = 0; i < HWADDR_SIZE; i++) {
+ char byte[3], *endp;
+ unsigned long x;
+
+ byte[0] = str[i * 3 + 0];
+ byte[1] = str[i * 3 + 1];
+ byte[2] = '\0';
+
+ x = strtoul(byte, &endp, 16);
+ if (endp != byte + 2)
+ return -1;
+
+ ifconf->hwaddr[i] = x & 0xff;
+ }
+
+ return 0;
+}
+
+static int config_parse_one_interface(struct config *config, char *confstr)
+{
+ struct interface_config *ifconf;
+ char *tok, *tok_gw, *tok_url, *saveptr;
+
+ ifconf = talloc_zero(config, struct interface_config);
+
+ if (!confstr || !strlen(confstr))
+ goto out_err;
+
+ /* first token should be the mac address */
+ tok = strtok_r(confstr, ",", &saveptr);
+ if (!tok)
+ goto out_err;
+
+ if (parse_hwaddr(ifconf, tok))
+ goto out_err;
+
+ /* second token is the method */
+ tok = strtok_r(NULL, ",", &saveptr);
+ if (!tok || !strlen(tok) || !strcmp(tok, "ignore")) {
+ ifconf->ignore = true;
+
+ } else if (!strcmp(tok, "dhcp")) {
+ ifconf->method = CONFIG_METHOD_DHCP;
+
+ } else if (!strcmp(tok, "static")) {
+ ifconf->method = CONFIG_METHOD_STATIC;
+
+ /* ip/mask, [optional] gateway, [optional] url */
+ tok = strtok_r(NULL, ",", &saveptr);
+ if (!tok)
+ goto out_err;
+ ifconf->static_config.address =
+ talloc_strdup(ifconf, tok);
+
+ /*
+ * If a url is set but not a gateway, we can accidentally
+ * interpret the url as the gateway. To avoid changing the
+ * parameter format check if the "gateway" is actually a
+ * pb-url if it's the last token.
+ */
+ tok_gw = strtok_r(NULL, ",", &saveptr);
+ tok_url = strtok_r(NULL, ",", &saveptr);
+
+ if (tok_gw) {
+ if (tok_url || !is_url(tok_gw))
+ ifconf->static_config.gateway =
+ talloc_strdup(ifconf, tok_gw);
+ else
+ tok_url = tok_gw;
+ }
+
+ if (tok_url)
+ ifconf->static_config.url =
+ talloc_strdup(ifconf, tok_url);
+ } else {
+ pb_log("Unknown network configuration method %s\n", tok);
+ goto out_err;
+ }
+
+ config->network.interfaces = talloc_realloc(config,
+ config->network.interfaces,
+ struct interface_config *,
+ ++config->network.n_interfaces);
+
+ config->network.interfaces[config->network.n_interfaces - 1] = ifconf;
+
+ return 0;
+out_err:
+ talloc_free(ifconf);
+ return -1;
+}
+
+static int config_parse_one_dns(struct config *config, char *confstr)
+{
+ char *tok, *saveptr = NULL;
+
+ for (tok = strtok_r(confstr, ",", &saveptr); tok;
+ tok = strtok_r(NULL, ",", &saveptr)) {
+
+ char *server = talloc_strdup(config, tok);
+
+ config->network.dns_servers = talloc_realloc(config,
+ config->network.dns_servers, const char *,
+ ++config->network.n_dns_servers);
+
+ config->network.dns_servers[config->network.n_dns_servers - 1]
+ = server;
+ }
+
+ return 0;
+}
+
+static void config_populate_network(struct config *config, const char *cval)
+{
+ char *val, *saveptr = NULL;
+ int i;
+
+ if (!cval || !strlen(cval))
+ return;
+
+ val = talloc_strdup(config, cval);
+
+ for (i = 0; ; i++) {
+ char *tok;
+
+ tok = strtok_r(i == 0 ? val : NULL, " ", &saveptr);
+ if (!tok)
+ break;
+
+ if (!strncasecmp(tok, "dns,", strlen("dns,")))
+ config_parse_one_dns(config, tok + strlen("dns,"));
+ else
+ config_parse_one_interface(config, tok);
+
+ }
+
+ talloc_free(val);
+}
+
+static int read_bootdev(void *ctx, char **pos, struct autoboot_option *opt)
+{
+ char *delim = strchr(*pos, ' ');
+ int len, prefix = 0, rc = -1;
+ enum device_type type;
+
+ if (!strncmp(*pos, "uuid:", strlen("uuid:"))) {
+ prefix = strlen("uuid:");
+ opt->boot_type = BOOT_DEVICE_UUID;
+ } else if (!strncmp(*pos, "mac:", strlen("mac:"))) {
+ prefix = strlen("mac:");
+ opt->boot_type = BOOT_DEVICE_UUID;
+ } else {
+ type = find_device_type(*pos);
+ if (type != DEVICE_TYPE_UNKNOWN) {
+ opt->type = type;
+ opt->boot_type = BOOT_DEVICE_TYPE;
+ rc = 0;
+ }
+ }
+
+ if (opt->boot_type == BOOT_DEVICE_UUID) {
+ if (delim)
+ len = (int)(delim - *pos) - prefix;
+ else
+ len = strlen(*pos) - prefix;
+
+ if (len) {
+ opt->uuid = talloc_strndup(ctx, *pos + prefix, len);
+ rc = 0;
+ }
+ }
+
+ /* Always advance pointer to next option or end */
+ if (delim)
+ *pos = delim + 1;
+ else
+ *pos += strlen(*pos);
+
+ return rc;
+}
+
+static void config_populate_bootdev(struct config *config,
+ const struct param_list *pl)
+{
+ struct autoboot_option *opt, *new = NULL;
+ char *pos, *end;
+ unsigned int n_new = 0;
+ const char *val;
+
+ /* Check for ordered bootdevs */
+ val = param_list_get_value(pl, "petitboot,bootdevs");
+ if (!val || !strlen(val)) {
+ pos = end = NULL;
+ } else {
+ pos = talloc_strdup(config, val);
+ end = strchr(pos, '\0');
+ }
+
+ while (pos && pos < end) {
+ opt = talloc(config, struct autoboot_option);
+
+ if (read_bootdev(config, &pos, opt)) {
+ pb_log("bootdev config is in an unknown format "
+ "(expected uuid:... or mac:...)\n");
+ talloc_free(opt);
+ continue;
+ }
+
+ new = talloc_realloc(config, new, struct autoboot_option,
+ n_new + 1);
+ new[n_new] = *opt;
+ n_new++;
+ talloc_free(opt);
+
+ }
+
+ if (!n_new) {
+ /* If autoboot has been disabled, clear the default options */
+ if (!config->autoboot_enabled) {
+ talloc_free(config->autoboot_opts);
+ config->n_autoboot_opts = 0;
+ }
+ return;
+ }
+
+ talloc_free(config->autoboot_opts);
+ config->autoboot_opts = new;
+ config->n_autoboot_opts = n_new;
+}
+
+void config_populate_all(struct config *config, const struct param_list *pl)
+{
+ const char *val;
+ char *end;
+ unsigned long timeout;
+
+ /* if the "auto-boot?' property is present and "false", disable auto
+ * boot */
+ val = param_list_get_value(pl, "auto-boot?");
+ config->autoboot_enabled = !val || strcmp(val, "false");
+
+ val = param_list_get_value(pl, "petitboot,timeout");
+ if (val) {
+ timeout = strtoul(val, &end, 10);
+ if (end != val) {
+ if (timeout >= INT_MAX)
+ timeout = INT_MAX;
+ config->autoboot_timeout_sec = (int)timeout;
+ }
+ }
+
+ val = param_list_get_value(pl, "petitboot,language");
+ config->lang = val ? talloc_strdup(config, val) : NULL;
+
+ val = param_list_get_value(pl, "petitboot,network");
+ config_populate_network(config, val);
+
+ config_populate_bootdev(config, pl);
+
+ if (!config->debug) {
+ val = param_list_get_value(pl, "petitboot,debug?");
+ config->debug = val && !strcmp(val, "true");
+ }
+
+ val = param_list_get_value(pl, "petitboot,write?");
+ if (val)
+ config->allow_writes = !strcmp(val, "true");
+
+ val = param_list_get_value(pl, "petitboot,snapshots?");
+ if (val)
+ config->disable_snapshots = !strcmp(val, "false");
+
+ val = param_list_get_value(pl, "petitboot,console");
+ if (val)
+ config->boot_console = talloc_strdup(config, val);
+ /* If a full path is already set we don't want to override it */
+ config->manual_console = config->boot_console &&
+ !strchr(config->boot_console, '[');
+
+ val = param_list_get_value(pl, "petitboot,http_proxy");
+ if (val)
+ config->http_proxy = talloc_strdup(config, val);
+ val = param_list_get_value(pl, "petitboot,https_proxy");
+ if (val)
+ config->https_proxy = talloc_strdup(config, val);
+}
projects / petitboot / blobdiff