BOOT_HOOK_EXIT_UPDATE = 2,
};
+enum boot_process_state {
+ BOOT_STATE_INITIAL,
+ BOOT_STATE_IMAGE_LOADING,
+ BOOT_STATE_INITRD_LOADING,
+ BOOT_STATE_DTB_LOADING,
+ BOOT_STATE_FINISH,
+ BOOT_STATE_UNKNOWN,
+};
-struct boot_task {
- char *local_image;
- char *local_initrd;
- char *local_dtb;
- char *args;
+struct boot_task {
+ struct load_url_result *image;
+ struct load_url_result *initrd;
+ struct load_url_result *dtb;
+ const char *args;
+ struct pb_url *image_url, *initrd_url, *dtb_url;
+ boot_status_fn status_fn;
+ void *status_arg;
+ enum boot_process_state state;
bool dry_run;
};
*p++ = pb_system_apps.kexec; /* 1 */
*p++ = "-l"; /* 2 */
- if (boot_task->local_initrd) {
+ if (boot_task->initrd) {
s_initrd = talloc_asprintf(boot_task, "--initrd=%s",
- boot_task->local_initrd);
+ boot_task->initrd->local);
assert(s_initrd);
*p++ = s_initrd; /* 3 */
}
- if (boot_task->local_dtb) {
+ if (boot_task->dtb) {
s_dtb = talloc_asprintf(boot_task, "--dtb=%s",
- boot_task->local_dtb);
+ boot_task->dtb->local);
assert(s_dtb);
*p++ = s_dtb; /* 4 */
}
*p++ = s_args; /* 5 */
}
- *p++ = boot_task->local_image; /* 6 */
+ *p++ = boot_task->image->local; /* 6 */
*p++ = NULL; /* 7 */
result = process_run_simple_argv(boot_task, argv);
return result;
}
-static void update_status(boot_status_fn fn, void *arg, int type,
- char *message)
+static void __attribute__((format(__printf__, 4, 5))) update_status(
+ boot_status_fn fn, void *arg, int type, char *fmt, ...)
{
struct boot_status status;
+ va_list ap;
+
+ va_start(ap, fmt);
+ status.message = talloc_vasprintf(NULL, fmt, ap);
+ va_end(ap);
status.type = type;
- status.message = message;
status.progress = -1;
status.detail = NULL;
fn(arg, &status);
+
+ talloc_free(status.message);
}
static void boot_hook_update_param(void *ctx, struct boot_task *task,
{
struct p {
const char *name;
- char **p;
+ const char **p;
} *param, params[] = {
- { "boot_image", &task->local_image },
- { "boot_initrd", &task->local_initrd },
- { "boot_dtb", &task->local_dtb },
+ { "boot_image", &task->image->local },
+ { "boot_initrd", &task->initrd->local },
+ { "boot_dtb", &task->dtb->local },
{ "boot_args", &task->args },
{ NULL, NULL },
};
unsetenv("boot_dtb");
unsetenv("boot_args");
- setenv("boot_image", task->local_image, 1);
- if (task->local_initrd)
- setenv("boot_initrd", task->local_initrd, 1);
- if (task->local_dtb)
- setenv("boot_dtb", task->local_dtb, 1);
+ setenv("boot_image", task->image->local, 1);
+ if (task->initrd)
+ setenv("boot_initrd", task->initrd->local, 1);
+ if (task->dtb)
+ setenv("boot_dtb", task->dtb->local, 1);
if (task->args)
setenv("boot_args", task->args, 1);
}
return strcmp((*a)->d_name, (*b)->d_name);
}
-static void run_boot_hooks(struct boot_task *task, boot_status_fn status_fn,
- void *status_arg)
+static void run_boot_hooks(struct boot_task *task)
{
struct dirent **hooks;
int i, n;
if (n < 1)
return;
- update_status(status_fn, status_arg, BOOT_STATUS_INFO,
+ update_status(task->status_fn, task->status_arg, BOOT_STATUS_INFO,
"running boot hooks");
boot_hook_setenv(task);
free(hooks);
}
+static void cleanup_load(struct load_url_result *result)
+{
+ if (!result)
+ return;
+ if (result->status != LOAD_OK)
+ return;
+ if (!result->cleanup_local)
+ return;
+ unlink(result->local);
+}
+
+static void boot_process(struct load_url_result *result, void *data)
+{
+ struct boot_task *task = data;
+ int rc = -1;
+
+ if (task->state == BOOT_STATE_INITIAL) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_INFO, "loading kernel");
+ task->image = load_url_async(task, task->image_url,
+ boot_process, task);
+ if (!task->image) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_ERROR,
+ "Couldn't load kernel image");
+ goto no_load;
+ }
+ task->state = BOOT_STATE_IMAGE_LOADING;
+ return;
+ }
+
+ if (task->state == BOOT_STATE_IMAGE_LOADING) {
+ if (result->status == LOAD_ERROR) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_ERROR,
+ "Error loading kernel image");
+ goto no_load;
+ }
+ task->state = BOOT_STATE_INITRD_LOADING;
+
+ if (task->initrd_url) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_INFO, "loading initrd");
+ task->initrd = load_url_async(task, task->initrd_url,
+ boot_process, task);
+ if (!task->initrd) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_ERROR,
+ "Couldn't load initrd image");
+ goto no_load;
+ }
+ return;
+ }
+ }
+
+ if (task->state == BOOT_STATE_INITRD_LOADING) {
+ if (result->status) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_ERROR,
+ "Error loading initrd");
+ goto no_load;
+ }
+ task->state = BOOT_STATE_DTB_LOADING;
+
+ if (task->dtb_url) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_INFO,
+ "loading device tree");
+ task->dtb = load_url_async(task, task->dtb_url,
+ boot_process, task);
+ if (!task->dtb) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_ERROR,
+ "Couldn't load device tree");
+ goto no_load;
+ }
+ return;
+ }
+ }
+
+ if (task->state == BOOT_STATE_DTB_LOADING) {
+ if (result->status) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_ERROR,
+ "Error loading dtb");
+ goto no_load;
+ }
+ task->state = BOOT_STATE_FINISH;
+ }
+
+
+ if (task->state != BOOT_STATE_FINISH) {
+ task->state = BOOT_STATE_UNKNOWN;
+ return;
+ }
+
+ run_boot_hooks(task);
+
+ update_status(task->status_fn, task->status_arg, BOOT_STATUS_INFO,
+ "performing kexec_load");
+
+ rc = kexec_load(task);
+ if (rc) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_ERROR, "kexec load failed");
+ }
+
+no_load:
+ cleanup_load(task->image);
+ cleanup_load(task->initrd);
+ cleanup_load(task->dtb);
+
+ if (!rc) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_INFO,
+ "performing kexec reboot");
+
+ rc = kexec_reboot(task);
+ if (rc) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_ERROR,
+ "kexec reboot failed");
+ }
+ }
+
+ talloc_free(task);
+}
+
int boot(void *ctx, struct discover_boot_option *opt, struct boot_command *cmd,
int dry_run, boot_status_fn status_fn, void *status_arg)
{
struct boot_task *boot_task;
- struct pb_url *image, *initrd, *dtb;
- unsigned int clean_image = 0;
- unsigned int clean_initrd = 0;
- unsigned int clean_dtb = 0;
- int result;
+ struct pb_url *image = NULL;
+ const char *boot_desc;
- image = NULL;
- initrd = NULL;
- dtb = NULL;
+ if (opt && opt->option->name)
+ boot_desc = opt->option->name;
+ else if (cmd && cmd->boot_image_file)
+ boot_desc = cmd->boot_image_file;
+ else
+ boot_desc = "(unknown)";
+
+ update_status(status_fn, status_arg, BOOT_STATUS_INFO,
+ "Booting %s.", boot_desc);
if (cmd && cmd->boot_image_file) {
image = pb_url_parse(opt, cmd->boot_image_file);
} else if (opt && opt->boot_image) {
image = opt->boot_image->url;
} else {
- pb_log("%s: no image specified", __func__);
+ pb_log("%s: no image specified\n", __func__);
+ update_status(status_fn, status_arg, BOOT_STATUS_INFO,
+ "Boot failed: no image specified");
return -1;
}
boot_task = talloc_zero(ctx, struct boot_task);
+ boot_task->image_url = image;
boot_task->dry_run = dry_run;
+ boot_task->status_fn = status_fn;
+ boot_task->status_arg = status_arg;
+ boot_task->state = BOOT_STATE_INITIAL;
if (cmd && cmd->initrd_file) {
- initrd = pb_url_parse(opt, cmd->initrd_file);
+ boot_task->initrd_url = pb_url_parse(opt, cmd->initrd_file);
} else if (opt && opt->initrd) {
- initrd = opt->initrd->url;
+ boot_task->initrd_url = opt->initrd->url;
}
if (cmd && cmd->dtb_file) {
- dtb = pb_url_parse(opt, cmd->dtb_file);
+ boot_task->dtb_url = pb_url_parse(opt, cmd->dtb_file);
} else if (opt && opt->dtb) {
- dtb = opt->dtb->url;
+ boot_task->dtb_url = opt->dtb->url;
}
if (cmd && cmd->boot_args) {
boot_task->args = NULL;
}
- result = -1;
+ boot_process(NULL, boot_task);
- update_status(status_fn, status_arg, BOOT_STATUS_INFO,
- "loading kernel");
- boot_task->local_image = load_url(NULL, image, &clean_image);
- if (!boot_task->local_image) {
- update_status(status_fn, status_arg, BOOT_STATUS_ERROR,
- "Couldn't load kernel image");
- goto no_load;
- }
-
- if (initrd) {
- update_status(status_fn, status_arg, BOOT_STATUS_INFO,
- "loading initrd");
- boot_task->local_initrd = load_url(NULL, initrd, &clean_initrd);
- if (!boot_task->local_initrd) {
- update_status(status_fn, status_arg, BOOT_STATUS_ERROR,
- "Couldn't load initrd image");
- goto no_load;
- }
- }
-
- if (dtb) {
- update_status(status_fn, status_arg, BOOT_STATUS_INFO,
- "loading device tree");
- boot_task->local_dtb = load_url(NULL, dtb, &clean_dtb);
- if (!boot_task->local_dtb) {
- update_status(status_fn, status_arg, BOOT_STATUS_ERROR,
- "Couldn't load device tree");
- goto no_load;
- }
- }
-
- run_boot_hooks(boot_task, status_fn, status_arg);
-
- update_status(status_fn, status_arg, BOOT_STATUS_INFO,
- "performing kexec_load");
-
- result = kexec_load(boot_task);
-
- if (result) {
- update_status(status_fn, status_arg, BOOT_STATUS_ERROR,
- "kexec load failed");
- }
-
-no_load:
- if (clean_image)
- unlink(boot_task->local_image);
- if (clean_initrd)
- unlink(boot_task->local_initrd);
- if (clean_dtb)
- unlink(boot_task->local_dtb);
-
- talloc_free(boot_task);
-
- if (!result) {
- update_status(status_fn, status_arg, BOOT_STATUS_INFO,
- "performing kexec reboot");
-
- result = kexec_reboot(boot_task);
-
- if (result) {
- update_status(status_fn, status_arg, BOOT_STATUS_ERROR,
- "kexec reboot failed");
- }
- }
-
- return result;
+ return 0;
}