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;
-
+ unsigned int clean_image;
+ unsigned int clean_initrd;
+ unsigned int clean_dtb;
+ struct pb_url *image, *initrd, *dtb;
+ boot_status_fn status_fn;
+ void *status_arg;
+ enum boot_process_state state;
bool dry_run;
};
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 boot_process(void *ctx, int status)
+{
+ struct boot_task *task = ctx;
+ int result = -1;
+
+ if (task->state == BOOT_STATE_INITIAL) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_INFO, "loading kernel");
+ task->local_image = load_url_async(task, task->image,
+ &task->clean_image, boot_process);
+ if (!task->local_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 (status) {
+ 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) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_INFO, "loading initrd");
+ task->local_initrd = load_url_async(task, task->initrd,
+ &task->clean_initrd, boot_process);
+ if (!task->local_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 (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) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_INFO,
+ "loading device tree");
+ task->local_dtb = load_url_async(task, task->dtb,
+ &task->clean_dtb, boot_process);
+ if (!task->local_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 (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");
+
+ result = kexec_load(task);
+
+ if (result) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_ERROR, "kexec load failed");
+ }
+
+no_load:
+ if (task->clean_image)
+ unlink(task->local_image);
+ if (task->clean_initrd)
+ unlink(task->local_initrd);
+ if (task->clean_dtb)
+ unlink(task->local_dtb);
+
+ if (!result) {
+ update_status(task->status_fn, task->status_arg,
+ BOOT_STATUS_INFO,
+ "performing kexec reboot");
+
+ result = kexec_reboot(task);
+
+ if (result) {
+ 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;
+
+ 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)";
- image = NULL;
- initrd = NULL;
- dtb = NULL;
+ 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);
image = opt->boot_image->url;
} else {
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 = 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 = pb_url_parse(opt, cmd->initrd_file);
} else if (opt && opt->initrd) {
- initrd = opt->initrd->url;
+ boot_task->initrd = opt->initrd->url;
}
if (cmd && cmd->dtb_file) {
- dtb = pb_url_parse(opt, cmd->dtb_file);
+ boot_task->dtb = pb_url_parse(opt, cmd->dtb_file);
} else if (opt && opt->dtb) {
- dtb = opt->dtb->url;
+ boot_task->dtb = opt->dtb->url;
}
if (cmd && cmd->boot_args) {
boot_task->args = NULL;
}
- result = -1;
-
- 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;
- }
- }
+ boot_process(boot_task, 0);
- 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);
-
- 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");
- }
- }
-
- talloc_free(boot_task);
-
- return result;
+ return 0;
}
projects / petitboot / blobdiff