-#define _GNU_SOURCE
+#if defined(HAVE_CONFIG_H)
+#include "config.h"
+#endif
#include <stdbool.h>
#include <stdlib.h>
#include <system/system.h>
#include <talloc/talloc.h>
#include <url/url.h>
+#include <util/util.h>
#include "device-handler.h"
#include "boot.h"
struct load_url_result *image;
struct load_url_result *initrd;
struct load_url_result *dtb;
+ const char *local_image;
+ const char *local_initrd;
+ const char *local_dtb;
const char *args;
boot_status_fn status_fn;
void *status_arg;
bool dry_run;
+ bool cancelled;
};
/**
*p++ = pb_system_apps.kexec; /* 1 */
*p++ = "-l"; /* 2 */
- if (boot_task->initrd) {
+ if (boot_task->local_initrd) {
s_initrd = talloc_asprintf(boot_task, "--initrd=%s",
- boot_task->initrd->local);
+ boot_task->local_initrd);
assert(s_initrd);
*p++ = s_initrd; /* 3 */
}
- if (boot_task->dtb) {
+ if (boot_task->local_dtb) {
s_dtb = talloc_asprintf(boot_task, "--dtb=%s",
- boot_task->dtb->local);
+ boot_task->local_dtb);
assert(s_dtb);
*p++ = s_dtb; /* 4 */
}
*p++ = s_args; /* 5 */
}
- *p++ = boot_task->image->local; /* 6 */
+ *p++ = boot_task->local_image; /* 6 */
*p++ = NULL; /* 7 */
result = process_run_simple_argv(boot_task, argv);
status.progress = -1;
status.detail = NULL;
+ pb_debug("boot status: [%d] %s\n", type, status.message);
+
fn(arg, &status);
talloc_free(status.message);
const char *name;
const char **p;
} *param, params[] = {
- { "boot_image", &task->image->local },
- { "boot_initrd", &task->initrd->local },
- { "boot_dtb", &task->dtb->local },
+ { "boot_image", &task->local_image },
+ { "boot_initrd", &task->local_initrd },
+ { "boot_dtb", &task->local_dtb },
{ "boot_args", &task->args },
{ NULL, NULL },
};
unsetenv("boot_dtb");
unsetenv("boot_args");
- 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);
+ 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);
if (task->args)
setenv("boot_args", task->args, 1);
}
/* if the hook returned with BOOT_HOOK_EXIT_UPDATE,
* then we process stdout to look for updated params
*/
- if (rc == BOOT_HOOK_EXIT_UPDATE) {
- boot_hook_update(task, hooks[i]->d_name,
- process->stdout_buf);
- boot_hook_setenv(task);
- }
+ boot_hook_update(task, hooks[i]->d_name,
+ process->stdout_buf);
+ boot_hook_setenv(task);
}
process_release(process);
unlink(result->local);
}
-static void boot_process(struct load_url_result *result __attribute__((unused)),
- void *data)
+static void cleanup_cancellations(struct boot_task *task,
+ struct load_url_result *cur_result)
+{
+ struct load_url_result *result, **results[] = {
+ &task->image, &task->initrd, &task->dtb,
+ };
+ bool pending = false;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(results); i++) {
+ result = *results[i];
+
+ if (!result)
+ continue;
+
+ /* We need to cleanup and free any completed loads */
+ if (result == cur_result || result->status == LOAD_OK
+ || result->status == LOAD_ERROR) {
+ cleanup_load(result);
+ talloc_free(result);
+ *results[i] = NULL;
+
+ /* ... and cancel any pending loads, which we'll free in
+ * the completion callback */
+ } else if (result->status == LOAD_ASYNC) {
+ load_url_async_cancel(result);
+ pending = true;
+ }
+ }
+
+ if (!pending)
+ talloc_free(task);
+}
+
+static void boot_process(struct load_url_result *result, void *data)
{
struct boot_task *task = data;
int rc = -1;
+ if (task->cancelled) {
+ cleanup_cancellations(task, result);
+ return;
+ }
+
if (load_pending(task->image) ||
load_pending(task->initrd) ||
load_pending(task->dtb))
check_load(task, "dtb", task->dtb))
goto no_load;
+ /* we make a copy of the local paths, as the boot hooks might update
+ * and/or create these */
+ task->local_image = task->image ? task->image->local : NULL;
+ task->local_initrd = task->initrd ? task->initrd->local : NULL;
+ task->local_dtb = task->dtb ? task->dtb->local : NULL;
+
run_boot_hooks(task);
update_status(task->status_fn, task->status_arg, BOOT_STATUS_INFO,
"kexec reboot failed");
}
}
-
- talloc_free(task);
}
static int start_url_load(struct boot_task *task, const char *name,
return 0;
}
-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(void *ctx, struct discover_boot_option *opt,
+ struct boot_command *cmd, int dry_run,
+ boot_status_fn status_fn, void *status_arg)
{
struct pb_url *image = NULL, *initrd = NULL, *dtb = NULL;
struct boot_task *boot_task;
pb_log("%s: no image specified\n", __func__);
update_status(status_fn, status_arg, BOOT_STATUS_INFO,
"Boot failed: no image specified");
- return -1;
+ return NULL;
}
if (cmd && cmd->initrd_file) {
|| start_url_load(boot_task, "dtb", dtb, &boot_task->dtb);
/* If all URLs are local, we may be done. */
- if (!rc)
- boot_process(NULL, boot_task);
+ if (rc) {
+ talloc_free(boot_task);
+ return NULL;
+ }
+
+ boot_process(NULL, boot_task);
+
+ return boot_task;
+}
+
+void boot_cancel(struct boot_task *task)
+{
+ task->cancelled = true;
+
+ update_status(task->status_fn, task->status_arg, BOOT_STATUS_INFO,
+ "Boot cancelled");
- return rc;
+ cleanup_cancellations(task, NULL);
}