]> git.ozlabs.org Git - petitboot/blobdiff - discover/platform-powerpc.c
discover: Add platform-dummy
[petitboot] / discover / platform-powerpc.c
index 87ff72ef0f22ef0b21882966dce960623ec49d16..84e18ccca5c51e73edc93585cbefe1a30b822598 100644 (file)
@@ -2,7 +2,6 @@
 #include <assert.h>
 #include <string.h>
 #include <stdlib.h>
-#include <limits.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <sys/types.h>
@@ -15,8 +14,6 @@
 #include <list/list.h>
 #include <log/log.h>
 #include <process/process.h>
-#include <types/types.h>
-#include <url/url.h>
 
 #include "hostboot.h"
 #include "platform.h"
@@ -27,15 +24,8 @@ static const char *partition = "common";
 static const char *sysparams_dir = "/sys/firmware/opal/sysparams/";
 static const char *devtree_dir = "/proc/device-tree/";
 
-struct param {
-       char                    *name;
-       char                    *value;
-       bool                    modified;
-       struct list_item        list;
-};
-
 struct platform_powerpc {
-       struct list     params;
+       struct param_list params;
        struct ipmi     *ipmi;
        bool            ipmi_bootdev_persistent;
        int             (*get_ipmi_bootdev)(
@@ -49,39 +39,9 @@ struct platform_powerpc {
        void            (*get_platform_versions)(struct system_info *info);
 };
 
-static const char *known_params[] = {
-       "auto-boot?",
-       "petitboot,network",
-       "petitboot,timeout",
-       "petitboot,bootdevs",
-       "petitboot,language",
-       "petitboot,debug?",
-       "petitboot,write?",
-       "petitboot,snapshots?",
-       "petitboot,console",
-       "petitboot,http_proxy",
-       "petitboot,https_proxy",
-       NULL,
-};
-
 #define to_platform_powerpc(p) \
        (struct platform_powerpc *)(p->platform_data)
 
-static bool param_is_known(const char *param, unsigned int len)
-{
-       const char *known_param;
-       unsigned int i;
-
-       for (i = 0; known_params[i]; i++) {
-               known_param = known_params[i];
-               if (len == strlen(known_param) &&
-                               !strncmp(param, known_param, len))
-                       return true;
-       }
-
-       return false;
-}
-
 static int parse_nvram_params(struct platform_powerpc *platform,
                char *buf, int len)
 {
@@ -110,7 +70,6 @@ static int parse_nvram_params(struct platform_powerpc *platform,
 
        for (pos = buf + i; pos < buf + len; pos += paramlen + 1) {
                unsigned int namelen;
-               struct param *param;
                char *newline;
 
                newline = strchr(pos, '\n');
@@ -130,16 +89,13 @@ static int parse_nvram_params(struct platform_powerpc *platform,
                if (namelen == 0)
                        continue;
 
-               if (!param_is_known(name, namelen))
+               if (!param_list_is_known_n(&platform->params, name, namelen))
                        continue;
 
+               *value = '\0';
                value++;
 
-               param = talloc(platform, struct param);
-               param->modified = false;
-               param->name = talloc_strndup(platform, name, namelen);
-               param->value = talloc_strdup(platform, value);
-               list_add(&platform->params, &param->list);
+               param_list_set(&platform->params, name, value, false);
        }
 
        return 0;
@@ -189,7 +145,7 @@ static int write_nvram(struct platform_powerpc *platform)
        process->path = "nvram";
        process->argv = argv;
 
-       list_for_each_entry(&platform->params, param, list) {
+       param_list_for_each(&platform->params, param) {
                char *paramstr;
 
                if (!param->modified)
@@ -215,473 +171,8 @@ static int write_nvram(struct platform_powerpc *platform)
        return rc;
 }
 
-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, &param->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, *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 parse_one_dns_config(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 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 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 populate_bootdev_config(struct platform_powerpc *platform,
-               struct config *config)
-{
-       struct autoboot_option *opt, *new = NULL;
-       char *pos, *end;
-       unsigned int n_new = 0;
-       const char *val;
-
-       /* Check for ordered bootdevs */
-       val = get_param(platform, "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;
-}
-
-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;
-               }
-       }
-
-       val = get_param(platform, "petitboot,language");
-       config->lang = val ? talloc_strdup(config, val) : NULL;
-
-       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");
-       }
-
-       val = get_param(platform, "petitboot,write?");
-       if (val)
-               config->allow_writes = !strcmp(val, "true");
-
-       val = get_param(platform, "petitboot,snapshots?");
-       if (val)
-               config->disable_snapshots = !strcmp(val, "false");
-
-       val = get_param(platform, "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 = get_param(platform, "petitboot,http_proxy");
-       if (val)
-               config->http_proxy = talloc_strdup(config, val);
-       val = get_param(platform, "petitboot,https_proxy");
-       if (val)
-               config->https_proxy = talloc_strdup(config, val);
-}
-
-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%s%s",
-                               config->static_config.address,
-                               config->static_config.gateway ? "," : "",
-                               config->static_config.gateway ?: "",
-                               config->static_config.url ? "," : "",
-                               config->static_config.url ?: "");
-       }
-       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,
-       const char *param_name, const struct config *config)
-{
-       unsigned int i;
-       char *val;
-
-       /*
-        * Don't store IPMI overrides to NVRAM. If this was a persistent
-        * override it was already stored in NVRAM by
-        * get_ipmi_network_override()
-        */
-       if (config->network.n_interfaces &&
-               config->network.interfaces[0]->override)
-               return;
-
-       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, param_name, val);
-
-       talloc_free(val);
-}
-
-static void update_bootdev_config(struct platform_powerpc *platform,
-               const char *param_name, const struct config *config)
-{
-       char *val = NULL, *boot_str = NULL, *tmp = NULL;
-       struct autoboot_option *opt;
-       const char delim = ' ';
-       unsigned int i;
-
-       if (!config->n_autoboot_opts)
-               val = "";
-
-       for (i = 0; i < config->n_autoboot_opts; i++) {
-               opt = &config->autoboot_opts[i];
-               switch (opt->boot_type) {
-                       case BOOT_DEVICE_TYPE:
-                               boot_str = talloc_asprintf(config, "%s%c",
-                                               device_type_name(opt->type),
-                                               delim);
-                               break;
-                       case BOOT_DEVICE_UUID:
-                               boot_str = talloc_asprintf(config, "uuid:%s%c",
-                                               opt->uuid, delim);
-                               break;
-                       }
-                       tmp = val = talloc_asprintf_append(val, "%s", boot_str);
-       }
-
-       update_string_config(platform, param_name, val);
-       talloc_free(tmp);
-       if (boot_str)
-               talloc_free(boot_str);
-}
-
-static void update_config(struct platform_powerpc *platform,
-               struct config *config, struct config *defaults)
+static void params_update_all(struct param_list *pl,
+       const struct config *config, const struct config *defaults)
 {
        char *tmp = NULL;
        const char *val;
@@ -690,43 +181,43 @@ static void update_config(struct platform_powerpc *platform,
                val = "";
        else
                val = config->autoboot_enabled ? "true" : "false";
-       update_string_config(platform, "auto-boot?", val);
+
+       param_list_set_non_empty(pl, "auto-boot?", val, true);
 
        if (config->autoboot_timeout_sec == defaults->autoboot_timeout_sec)
                val = "";
        else
-               val = tmp = talloc_asprintf(platform, "%d",
-                               config->autoboot_timeout_sec);
+               val = tmp = talloc_asprintf(pl, "%d",
+                       config->autoboot_timeout_sec);
 
-       update_string_config(platform, "petitboot,timeout", val);
+       param_list_set_non_empty(pl, "petitboot,timeout", val, true);
        if (tmp)
                talloc_free(tmp);
 
        val = config->lang ?: "";
-       update_string_config(platform, "petitboot,language", val);
+       param_list_set_non_empty(pl, "petitboot,language", val, true);
 
        if (config->allow_writes == defaults->allow_writes)
                val = "";
        else
                val = config->allow_writes ? "true" : "false";
-       update_string_config(platform, "petitboot,write?", val);
+       param_list_set_non_empty(pl, "petitboot,write?", val, true);
 
        if (!config->manual_console) {
                val = config->boot_console ?: "";
-               update_string_config(platform, "petitboot,console", val);
+               param_list_set_non_empty(pl, "petitboot,console", val, true);
        }
 
        val = config->http_proxy ?: "";
-       update_string_config(platform, "petitboot,http_proxy", val);
+       param_list_set_non_empty(pl, "petitboot,http_proxy", val, true);
        val = config->https_proxy ?: "";
-       update_string_config(platform, "petitboot,https_proxy", val);
-
-       update_network_config(platform, "petitboot,network", config);
+       param_list_set_non_empty(pl, "petitboot,https_proxy", val, true);
 
-       update_bootdev_config(platform, "petitboot,bootdevs", config);
+       params_update_network_values(pl, "petitboot,network", config);
+       params_update_bootdev_values(pl, "petitboot,bootdevs", config);
 }
 
-static void set_ipmi_bootdev(struct config *config, enum ipmi_bootdev bootdev,
+static void config_set_ipmi_bootdev(struct config *config, enum ipmi_bootdev bootdev,
                bool persistent)
 {
        config->ipmi_bootdev = bootdev;
@@ -1071,14 +562,15 @@ static void get_ipmi_network_override(struct platform_powerpc *platform,
 
        if (!rc && persistent) {
                /* Write this new config to NVRAM */
-               update_network_config(platform, "petitboot,network", config);
+               params_update_network_values(&platform->params,
+                       "petitboot,network", config);
                rc = write_nvram(platform);
                if (rc)
                        pb_log("platform: Failed to save persistent interface override\n");
        }
 }
 
-static void get_active_consoles(struct config *config)
+static void config_get_active_consoles(struct config *config)
 {
        struct stat sbuf;
        char *fsp_prop = NULL;
@@ -1120,7 +612,7 @@ static int load_config(struct platform *p, struct config *config)
        if (rc)
                pb_log_fn("Failed to parse nvram\n");
 
-       populate_config(platform, config);
+       config_populate_all(config, &platform->params);
 
        if (platform->get_ipmi_bootdev) {
                bool bootdev_persistent;
@@ -1128,14 +620,15 @@ static int load_config(struct platform *p, struct config *config)
                rc = platform->get_ipmi_bootdev(platform, &bootdev,
                                &bootdev_persistent);
                if (!rc && ipmi_bootdev_is_valid(bootdev)) {
-                       set_ipmi_bootdev(config, bootdev, bootdev_persistent);
+                       config_set_ipmi_bootdev(config, bootdev,
+                               bootdev_persistent);
                }
        }
 
        if (platform->ipmi)
                get_ipmi_network_override(platform, config);
 
-       get_active_consoles(config);
+       config_get_active_consoles(config);
 
        return 0;
 }
@@ -1156,7 +649,7 @@ static int save_config(struct platform *p, struct config *config)
        defaults = talloc_zero(platform, struct config);
        config_set_defaults(defaults);
 
-       update_config(platform, config, defaults);
+       params_update_all(&platform->params, config, defaults);
 
        talloc_free(defaults);
        return write_nvram(platform);
@@ -1220,7 +713,7 @@ static bool probe(struct platform *p, void *ctx)
                return false;
 
        platform = talloc_zero(ctx, struct platform_powerpc);
-       list_init(&platform->params);
+       param_list_init(&platform->params, common_known_params());
 
        p->platform_data = platform;