#include <string.h>
#include <stdlib.h>
+#include <limits.h>
#include <sys/types.h>
#include <sys/wait.h>
static const char *known_params[] = {
"auto-boot?",
"petitboot,network",
+ "petitboot,timeout",
NULL,
};
return rc;
}
+static int write_nvram(struct powerpc_nvram_storage *nv)
+{
+ struct process *process;
+ struct param *param;
+ const char *argv[6];
+ int rc;
+
+ argv[0] = "nvram";
+ argv[1] = "--update-config";
+ argv[2] = NULL;
+ argv[3] = "--partition";
+ argv[4] = partition;
+ argv[5] = NULL;
+
+ process = process_create(nv);
+ process->path = "nvram";
+ process->argv = argv;
+
+ list_for_each_entry(&nv->params, param, list) {
+ char *paramstr;
+
+ if (!param->modified)
+ continue;
+
+ paramstr = talloc_asprintf(nv, "%s=%s",
+ param->name, param->value);
+ argv[2] = paramstr;
+
+ rc = process_run_sync(process);
+
+ talloc_free(paramstr);
+
+ if (rc || !WIFEXITED(process->exit_status)
+ || WEXITSTATUS(process->exit_status)) {
+ rc = -1;
+ pb_log("nvram update process returned "
+ "non-zero exit status\n");
+ break;
+ }
+ }
+
+ process_release(process);
+ return rc;
+}
+
static const char *get_param(struct powerpc_nvram_storage *nv,
const char *name)
{
return NULL;
}
+static void set_param(struct powerpc_nvram_storage *nv, const char *name,
+ const char *value)
+{
+ struct param *param;
+
+ list_for_each_entry(&nv->params, param, list) {
+ if (strcmp(param->name, name))
+ continue;
+
+ if (!strcmp(param->value, value))
+ return;
+
+ talloc_free(param->value);
+ param->value = talloc_strdup(param, value);
+ param->modified = true;
+ return;
+ }
+
+
+ param = talloc(nv, struct param);
+ param->modified = true;
+ param->name = talloc_strdup(nv, name);
+ param->value = talloc_strdup(nv, value);
+ list_add(&nv->params, ¶m->list);
+}
+
static int parse_hwaddr(struct interface_config *ifconf, char *str)
{
int i;
struct interface_config *ifconf;
char *tok, *saveptr;
- ifconf = talloc(config, struct interface_config);
+ ifconf = talloc_zero(config, struct interface_config);
if (!confstr || !strlen(confstr))
goto out_err;
struct config *config)
{
const char *val;
+ char *end;
+ unsigned long timeout;
/* if the "auto-boot?' property is present and "false", disable auto
* boot */
val = get_param(nv, "auto-boot?");
config->autoboot_enabled = !val || strcmp(val, "false");
+ val = get_param(nv, "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;
+ }
+ }
+
populate_network_config(nv, config);
}
+static char *iface_config_str(void *ctx, struct interface_config *config)
+{
+ char *str;
+
+ /* todo: HWADDR size is hardcoded as 6, but we may need to handle
+ * different hardware address formats */
+ str = talloc_asprintf(ctx, "%02x:%02x:%02x:%02x:%02x:%02x,",
+ config->hwaddr[0], config->hwaddr[1],
+ config->hwaddr[2], config->hwaddr[3],
+ config->hwaddr[4], config->hwaddr[5]);
+
+ if (config->ignore) {
+ str = talloc_asprintf_append(str, "ignore");
+
+ } else if (config->method == CONFIG_METHOD_DHCP) {
+ str = talloc_asprintf_append(str, "dhcp");
+
+ } else if (config->method == CONFIG_METHOD_STATIC) {
+ str = talloc_asprintf_append(str, "static,%s%s%s",
+ config->static_config.address,
+ config->static_config.gateway ? "," : "",
+ config->static_config.gateway ?: "");
+ }
+ return str;
+}
+
+static char *dns_config_str(void *ctx, const char **dns_servers, int n)
+{
+ char *str;
+ int i;
+
+ str = talloc_strdup(ctx, "dns=");
+ for (i = 0; i < n; i++) {
+ str = talloc_asprintf_append(str, "%s%s",
+ i == 0 ? "" : ",",
+ dns_servers[i]);
+ }
+
+ return str;
+}
+
+static void update_network_config(struct powerpc_nvram_storage *nv,
+ struct config *config)
+{
+ unsigned int i;
+ char *val;
+
+ val = talloc_strdup(nv, "");
+
+ for (i = 0; i < config->network.n_interfaces; i++) {
+ char *iface_str = iface_config_str(nv,
+ config->network.interfaces[i]);
+ val = talloc_asprintf_append(val, "%s%s",
+ *val == '\0' ? "" : " ", iface_str);
+ talloc_free(iface_str);
+ }
+
+ if (config->network.n_dns_servers) {
+ char *dns_str = dns_config_str(nv, config->network.dns_servers,
+ config->network.n_dns_servers);
+ val = talloc_asprintf_append(val, "%s%s",
+ *val == '\0' ? "" : " ", dns_str);
+ talloc_free(dns_str);
+ }
+
+ set_param(nv, "petitboot,network", val);
+
+ talloc_free(val);
+}
+
+static int update_config(struct powerpc_nvram_storage *nv,
+ struct config *config, struct config *defaults)
+{
+ char *val;
+
+ if (config->autoboot_enabled != defaults->autoboot_enabled) {
+ val = config->autoboot_enabled ? "true" : "false";
+ set_param(nv, "auto-boot?", val);
+ }
+
+ if (config->autoboot_timeout_sec != defaults->autoboot_timeout_sec) {
+ val = talloc_asprintf(nv, "%d", config->autoboot_timeout_sec);
+ set_param(nv, "petitboot,timeout", val);
+ talloc_free(val);
+ }
+
+ if (config->network.n_interfaces)
+ update_network_config(nv, config);
+
+ return write_nvram(nv);
+}
+
static int load(struct config_storage *st, struct config *config)
{
struct powerpc_nvram_storage *nv = to_powerpc_nvram_storage(st);
return 0;
}
+static int save(struct config_storage *st, struct config *config)
+{
+ struct powerpc_nvram_storage *nv = to_powerpc_nvram_storage(st);
+ struct config *defaults;
+ int rc;
+
+ defaults = talloc_zero(nv, struct config);
+ config_set_defaults(defaults);
+
+ rc = update_config(nv, config, defaults);
+
+ talloc_free(defaults);
+ return rc;
+}
+
struct config_storage *create_powerpc_nvram_storage(void *ctx)
{
struct powerpc_nvram_storage *nv;
nv = talloc(ctx, struct powerpc_nvram_storage);
nv->storage.load = load;
+ nv->storage.save = save;
list_init(&nv->params);
return &nv->storage;