discover: kexec harder
[petitboot] / discover / boot.c
index 02618cce1251fd070e3baec29c27bac762141c45..29aefa916a8e149b973c69baccbb52b6a6bef799 100644 (file)
@@ -5,9 +5,12 @@
 #include <pb-protocol/pb-protocol.h>
 #include <system/system.h>
 #include <talloc/talloc.h>
+#include <url/url.h>
 
+#include "device-handler.h"
 #include "boot.h"
 #include "paths.h"
+#include "resource.h"
 
 /**
  * kexec_load - kexec load helper.
@@ -91,58 +94,105 @@ static int kexec_reboot(int dry_run)
        if (result)
                pb_log("%s: failed: (%d)\n", __func__, result);
 
+       /* okay, kexec -e -f */
+       if (result) {
+               p = argv;
+               *p++ = pb_system_apps.kexec;    /* 1 */
+               *p++ = "-e";                    /* 2 */
+               *p++ = "-f";                    /* 3 */
+               *p++ = NULL;                    /* 4 */
+
+               result = pb_run_cmd(argv, 1, 0);
+       }
+
+       if (result)
+               pb_log("%s: failed: (%d)\n", __func__, result);
+
+
        return result;
 }
 
-int boot(void *ctx, struct boot_option *opt, struct boot_command *cmd,
-               int dry_run)
+static void update_status(boot_status_fn fn, void *arg, int type,
+               char *message)
+{
+       struct boot_status status;
+
+       status.type = type;
+       status.message = message;
+       status.progress = -1;
+       status.detail = NULL;
+
+       fn(arg, &status);
+}
+
+int boot(void *ctx, struct discover_boot_option *opt, struct boot_command *cmd,
+               int dry_run, boot_status_fn status_fn, void *status_arg)
 {
        char *local_image, *local_initrd;
        unsigned int clean_image = 0;
        unsigned int clean_initrd = 0;
-       char *image, *initrd, *args;
+       struct pb_url *image, *initrd;
+       char *args;
        int result;
 
+       local_initrd = NULL;
        image = NULL;
        initrd = NULL;
        args = NULL;
 
        if (cmd->boot_image_file) {
-               image = talloc_strdup(ctx, cmd->boot_image_file);
-       } else if (opt && opt->boot_image_file) {
-               image = talloc_strdup(ctx, opt->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__);
                return -1;
        }
 
        if (cmd->initrd_file) {
-               initrd = talloc_strdup(ctx, cmd->initrd_file);
-       } else if (opt && opt->initrd_file) {
-               initrd = talloc_strdup(ctx, opt->initrd_file);
+               initrd = pb_url_parse(opt, cmd->initrd_file);
+       } else if (opt && opt->initrd) {
+               initrd = opt->initrd->url;
        }
 
        if (cmd->boot_args) {
                args = talloc_strdup(ctx, cmd->boot_args);
-       } else if (opt && opt->boot_args) {
-               args = talloc_strdup(ctx, opt->boot_args);
+       } else if (opt && opt->option->boot_args) {
+               args = talloc_strdup(ctx, opt->option->boot_args);
        }
 
        result = -1;
 
-       local_image = load_file(NULL, image, &clean_image);
-       if (!local_image)
+       update_status(status_fn, status_arg, BOOT_STATUS_INFO,
+                       "loading kernel");
+       local_image = load_url(NULL, image, &clean_image);
+       if (!local_image) {
+               update_status(status_fn, status_arg, BOOT_STATUS_ERROR,
+                               "Couldn't load kernel image");
                goto no_load;
+       }
 
-       local_initrd = NULL;
        if (initrd) {
-               local_initrd = load_file(NULL, initrd, &clean_initrd);
-               if (!local_initrd)
+               update_status(status_fn, status_arg, BOOT_STATUS_INFO,
+                               "loading initrd");
+               local_initrd = load_url(NULL, initrd, &clean_initrd);
+               if (!local_initrd) {
+                       update_status(status_fn, status_arg, BOOT_STATUS_ERROR,
+                                       "Couldn't load initrd image");
                        goto no_load;
+               }
        }
 
+       update_status(status_fn, status_arg, BOOT_STATUS_INFO,
+                       "performing kexec_load");
+
        result = kexec_load(local_image, local_initrd, args, dry_run);
 
+       if (result) {
+               update_status(status_fn, status_arg, BOOT_STATUS_ERROR,
+                               "kexec load failed");
+       }
+
 no_load:
        if (clean_image)
                unlink(local_image);
@@ -152,8 +202,17 @@ no_load:
        talloc_free(local_image);
        talloc_free(local_initrd);
 
-       if (!result)
+       if (!result) {
+               update_status(status_fn, status_arg, BOOT_STATUS_INFO,
+                               "performing kexec reboot");
+
                result = kexec_reboot(dry_run);
 
+               if (result) {
+                       update_status(status_fn, status_arg, BOOT_STATUS_ERROR,
+                                       "kexec reboot failed");
+               }
+       }
+
        return result;
 }