10 #include <types/types.h>
11 #include <talloc/talloc.h>
16 static struct platform *platform;
17 static struct config *config;
19 static const char *kernel_cmdline_debug = "petitboot.debug";
21 static void dump_config(struct config *config)
25 pb_log("configuration:\n");
27 if (config->autoboot_enabled)
28 pb_log(" autoboot: enabled, %d sec\n",
29 config->autoboot_timeout_sec);
31 pb_log(" autoboot: disabled\n");
33 if (config->network.n_interfaces || config->network.n_dns_servers)
34 pb_log(" network configuration:\n");
36 if (config->safe_mode)
37 pb_log(" safe mode: active\n");
39 if (config->disable_snapshots)
40 pb_log(" dm-snapshots disabled\n");
42 for (i = 0; i < config->network.n_interfaces; i++) {
43 struct interface_config *ifconf =
44 config->network.interfaces[i];
46 pb_log(" interface %02x:%02x:%02x:%02x:%02x:%02x\n",
47 ifconf->hwaddr[0], ifconf->hwaddr[1],
48 ifconf->hwaddr[2], ifconf->hwaddr[3],
49 ifconf->hwaddr[4], ifconf->hwaddr[5]);
56 if (ifconf->method == CONFIG_METHOD_DHCP) {
59 } else if (ifconf->method == CONFIG_METHOD_STATIC) {
61 pb_log(" ip: %s\n", ifconf->static_config.address);
62 pb_log(" gw: %s\n", ifconf->static_config.gateway);
66 for (i = 0; i < config->network.n_dns_servers; i++)
67 pb_log(" dns server %s\n", config->network.dns_servers[i]);
69 for (i = 0; i < config->n_autoboot_opts; i++) {
70 if (config->autoboot_opts[i].boot_type == BOOT_DEVICE_TYPE)
71 pb_log(" boot device %d: %s\n", i,
72 device_type_name(config->autoboot_opts[i].type));
74 pb_log(" boot device %d: uuid: %s\n",
75 i, config->autoboot_opts[i].uuid);
78 pb_log(" IPMI boot device 0x%02x%s\n", config->ipmi_bootdev,
79 config->ipmi_bootdev_persistent ? " (persistent)" : "");
82 pb_log(" language: %s\n", config->lang ?: "");
85 static bool config_debug_on_cmdline(void)
90 fd = open("/proc/cmdline", O_RDONLY);
94 rc = read(fd, buf, sizeof(buf));
100 return memmem(buf, rc, kernel_cmdline_debug,
101 strlen(kernel_cmdline_debug)) != NULL;
104 void config_set_defaults(struct config *config)
108 config->autoboot_enabled = true;
109 config->autoboot_timeout_sec = 10;
110 config->autoboot_enabled = true;
111 config->network.interfaces = NULL;
112 config->network.n_interfaces = 0;
113 config->network.dns_servers = NULL;
114 config->network.n_dns_servers = 0;
115 config->safe_mode = false;
116 config->allow_writes = true;
117 config->disable_snapshots = false;
119 config->n_autoboot_opts = 2;
120 config->autoboot_opts = talloc_array(config, struct autoboot_option,
121 config->n_autoboot_opts);
122 config->autoboot_opts[0].boot_type = BOOT_DEVICE_TYPE;
123 config->autoboot_opts[0].type = DEVICE_TYPE_NETWORK;
124 config->autoboot_opts[1].boot_type = BOOT_DEVICE_TYPE;
125 config->autoboot_opts[1].type = DEVICE_TYPE_ANY;
127 config->ipmi_bootdev = 0;
128 config->ipmi_bootdev_persistent = false;
130 config->debug = config_debug_on_cmdline();
132 lang = setlocale(LC_ALL, NULL);
133 pb_log("lang: %s\n", lang);
134 if (lang && strlen(lang))
135 config->lang = talloc_strdup(config, lang);
141 int platform_init(void *ctx)
143 extern struct platform *__start_platforms, *__stop_platforms;
146 platform_ctx = talloc_new(ctx);
148 for (p = &__start_platforms; p < &__stop_platforms; p++) {
149 if (!(*p)->probe(*p, platform_ctx))
155 config = talloc(platform_ctx, struct config);
156 config_set_defaults(config);
159 pb_log("Detected platform type: %s\n", platform->name);
160 if (platform->load_config)
161 platform->load_config(platform, config);
163 pb_log("No platform type detected, some platform-specific "
164 "functionality will be disabled\n");
172 const struct platform *platform_get(void)
177 void platform_pre_boot(void)
179 const struct config *config = config_get();
181 if (platform && config && platform->pre_boot)
182 platform->pre_boot(platform, config);
185 int platform_get_sysinfo(struct system_info *info)
187 if (platform && platform->get_sysinfo)
188 return platform->get_sysinfo(platform, info);
192 int config_set(struct config *newconfig)
196 if (!platform || !platform->save_config)
199 if (newconfig == config)
202 pb_log("new configuration data received\n");
203 dump_config(newconfig);
205 rc = platform->save_config(platform, newconfig);
208 config = talloc_steal(platform_ctx, newconfig);
210 pb_log("error saving new configuration; changes lost\n");
215 /* A non-exported function to allow the test infrastructure to initialise
216 * (and change) the configuration variables */
218 struct config __attribute__((unused)) *test_config_init(
219 struct parser_test *test);
220 struct config *test_config_init(struct parser_test *test)
222 config = talloc(test, struct config);
223 config_set_defaults(config);
227 const struct config *config_get(void)
232 void config_set_autoboot(bool autoboot_enabled)
234 config->autoboot_enabled = autoboot_enabled;
236 pb_log("set autoboot: %s\n",
237 config->autoboot_enabled ? "enabled" : "disabled");
240 int platform_fini(void)
242 talloc_free(platform_ctx);