-static const char *get_param(struct platform_powerpc *platform,
- const char *name)
-{
- struct param *param;
-
- list_for_each_entry(&platform->params, param, list)
- if (!strcmp(param->name, name))
- return param->value;
- return NULL;
-}
-
-static void set_param(struct platform_powerpc *platform, const char *name,
- const char *value)
-{
- struct param *param;
-
- list_for_each_entry(&platform->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(platform, struct param);
- param->modified = true;
- param->name = talloc_strdup(platform, name);
- param->value = talloc_strdup(platform, value);
- list_add(&platform->params, ¶m->list);
-}
-
-static int parse_hwaddr(struct interface_config *ifconf, 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 parse_one_interface_config(struct config *config,
- char *confstr)
-{
- struct interface_config *ifconf;
- char *tok, *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 */
- tok = strtok_r(NULL, ",", &saveptr);
- if (!tok)
- goto out_err;
- ifconf->static_config.address =
- talloc_strdup(ifconf, tok);
-
- tok = strtok_r(NULL, ",", &saveptr);
- if (tok) {
- ifconf->static_config.gateway =
- talloc_strdup(ifconf, tok);
- }
-
- } 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 parse_one_dns_config(struct config *config,
- char *confstr)
-{
- char *tok, *saveptr;
-
- 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 populate_network_config(struct platform_powerpc *platform,
- struct config *config)
-{
- char *val, *saveptr = NULL;
- const char *cval;
- int i;
-
- cval = get_param(platform, "petitboot,network");
- 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,")))
- parse_one_dns_config(config, tok + strlen("dns,"));
- else
- parse_one_interface_config(config, tok);
-
- }
-
- talloc_free(val);
-}
-
-static void populate_bootdev_config(struct platform_powerpc *platform,
- struct config *config)
-
-{
- const char *val;
-
- config->boot_device = NULL;
-
- val = get_param(platform, "petitboot,bootdev");
- if (!val || !strlen(val))
- return;
-
- if (!strncmp(val, "uuid:", strlen("uuid:"))) {
- config->boot_device = talloc_strdup(config,
- val + strlen("uuid:"));
-
- } else if (!strncmp(val, "mac:", strlen("mac:"))) {
- config->boot_device = talloc_strdup(config,
- val + strlen("mac:"));
-
- } else {
- pb_log("bootdev config is in an unknown format "
- "(expected uuid:... or mac:...)");
- }
-}
-
-static void populate_config(struct platform_powerpc *platform,
- 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(platform, "auto-boot?");
- config->autoboot_enabled = !val || strcmp(val, "false");
-
- val = get_param(platform, "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(platform, config);
-
- populate_bootdev_config(platform, config);
-
- if (!config->debug) {
- val = get_param(platform, "petitboot,debug?");
- config->debug = val && !strcmp(val, "true");
- }
-}
-
-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_string_config(struct platform_powerpc *platform,
- const char *name, const char *value)
-{
- const char *cur;
-
- cur = get_param(platform, name);
-
- /* don't set an empty parameter if it doesn't already exist */
- if (!cur && !strlen(value))
- return;
-
- set_param(platform, name, value);
-}
-
-static void update_network_config(struct platform_powerpc *platform,
- struct config *config)
-{
- unsigned int i;
- char *val;
-
- val = talloc_strdup(platform, "");
-
- for (i = 0; i < config->network.n_interfaces; i++) {
- char *iface_str = iface_config_str(platform,
- 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(platform,
- config->network.dns_servers,
- config->network.n_dns_servers);
- val = talloc_asprintf_append(val, "%s%s",
- *val == '\0' ? "" : " ", dns_str);
- talloc_free(dns_str);
- }
-
- update_string_config(platform, "petitboot,network", val);
-
- talloc_free(val);
-}
-
-static void update_bootdev_config(struct platform_powerpc *platform,
- struct config *config)
-{
- char *val, *tmp = NULL;
-
- if (!config->boot_device)
- val = "";
- else
- tmp = val = talloc_asprintf(platform,
- "uuid:%s", config->boot_device);
-
- update_string_config(platform, "petitboot,bootdev", val);
- talloc_free(tmp);
-}
-
-static int update_config(struct platform_powerpc *platform,
- struct config *config, struct config *defaults)