9 #include <types/types.h>
10 #include <talloc/talloc.h>
15 static struct platform *platform;
16 static struct config *config;
18 static const char *kernel_cmdline_debug = "petitboot.debug";
20 static void dump_config(struct config *config)
24 pb_log("configuration:\n");
26 if (config->autoboot_enabled)
27 pb_log(" autoboot: enabled, %d sec\n",
28 config->autoboot_timeout_sec);
30 pb_log(" autoboot: disabled\n");
32 if (config->network.n_interfaces || config->network.n_dns_servers)
33 pb_log(" network configuration:\n");
35 if (config->safe_mode)
36 pb_log(" safe mode: active\n");
38 if (config->disable_snapshots)
39 pb_log(" dm-snapshots disabled\n");
41 for (i = 0; i < config->network.n_interfaces; i++) {
42 struct interface_config *ifconf =
43 config->network.interfaces[i];
45 pb_log(" interface %02x:%02x:%02x:%02x:%02x:%02x\n",
46 ifconf->hwaddr[0], ifconf->hwaddr[1],
47 ifconf->hwaddr[2], ifconf->hwaddr[3],
48 ifconf->hwaddr[4], ifconf->hwaddr[5]);
55 if (ifconf->method == CONFIG_METHOD_DHCP) {
58 } else if (ifconf->method == CONFIG_METHOD_STATIC) {
60 pb_log(" ip: %s\n", ifconf->static_config.address);
61 pb_log(" gw: %s\n", ifconf->static_config.gateway);
65 for (i = 0; i < config->network.n_dns_servers; i++)
66 pb_log(" dns server %s\n", config->network.dns_servers[i]);
68 for (i = 0; i < config->n_autoboot_opts; i++) {
69 if (config->autoboot_opts[i].boot_type == BOOT_DEVICE_TYPE)
70 pb_log(" boot device %d: %s\n", i,
71 device_type_name(config->autoboot_opts[i].type));
73 pb_log(" boot device %d: uuid: %s\n",
74 i, config->autoboot_opts[i].uuid);
77 pb_log(" IPMI boot device 0x%02x%s\n", config->ipmi_bootdev,
78 config->ipmi_bootdev_persistent ? " (persistent)" : "");
81 pb_log(" language: %s\n", config->lang ?: "");
84 static bool config_debug_on_cmdline(void)
89 fd = open("/proc/cmdline", O_RDONLY);
93 rc = read(fd, buf, sizeof(buf));
99 return memmem(buf, rc, kernel_cmdline_debug,
100 strlen(kernel_cmdline_debug)) != NULL;
103 void config_set_defaults(struct config *config)
105 config->autoboot_enabled = true;
106 config->autoboot_timeout_sec = 10;
107 config->autoboot_enabled = true;
108 config->network.interfaces = NULL;
109 config->network.n_interfaces = 0;
110 config->network.dns_servers = NULL;
111 config->network.n_dns_servers = 0;
112 config->safe_mode = false;
114 config->allow_writes = true;
115 config->disable_snapshots = false;
117 config->n_autoboot_opts = 2;
118 config->autoboot_opts = talloc_array(config, struct autoboot_option,
119 config->n_autoboot_opts);
120 config->autoboot_opts[0].boot_type = BOOT_DEVICE_TYPE;
121 config->autoboot_opts[0].type = DEVICE_TYPE_NETWORK;
122 config->autoboot_opts[1].boot_type = BOOT_DEVICE_TYPE;
123 config->autoboot_opts[1].type = DEVICE_TYPE_ANY;
125 config->ipmi_bootdev = 0;
126 config->ipmi_bootdev_persistent = false;
128 config->debug = config_debug_on_cmdline();
131 int platform_init(void *ctx)
133 extern struct platform *__start_platforms, *__stop_platforms;
136 platform_ctx = talloc_new(ctx);
138 for (p = &__start_platforms; p < &__stop_platforms; p++) {
139 if (!(*p)->probe(*p, platform_ctx))
145 config = talloc(platform_ctx, struct config);
146 config_set_defaults(config);
149 pb_log("Detected platform type: %s\n", platform->name);
150 if (platform->load_config)
151 platform->load_config(platform, config);
153 pb_log("No platform type detected, some platform-specific "
154 "functionality will be disabled\n");
162 const struct platform *platform_get(void)
167 void platform_pre_boot(void)
169 const struct config *config = config_get();
171 if (platform && config && platform->pre_boot)
172 platform->pre_boot(platform, config);
175 int platform_get_sysinfo(struct system_info *info)
177 if (platform && platform->get_sysinfo)
178 return platform->get_sysinfo(platform, info);
182 int config_set(struct config *newconfig)
186 if (!platform || !platform->save_config)
189 if (newconfig == config)
192 pb_log("new configuration data received\n");
193 dump_config(newconfig);
195 rc = platform->save_config(platform, newconfig);
198 config = talloc_steal(platform_ctx, newconfig);
200 pb_log("error saving new configuration; changes lost\n");
205 /* A non-exported function to allow the test infrastructure to initialise
206 * (and change) the configuration variables */
208 struct config __attribute__((unused)) *test_config_init(
209 struct parser_test *test);
210 struct config *test_config_init(struct parser_test *test)
212 config = talloc(test, struct config);
213 config_set_defaults(config);
217 const struct config *config_get(void)
222 void config_set_autoboot(bool autoboot_enabled)
224 config->autoboot_enabled = autoboot_enabled;
226 pb_log("set autoboot: %s\n",
227 config->autoboot_enabled ? "enabled" : "disabled");
230 int platform_fini(void)
232 talloc_free(platform_ctx);