static gboolean
append_config_from_boostree_loader_entries (OstreeBootloaderSyslinux *self,
gboolean regenerate_default,
int bootversion,
GPtrArray *new_lines,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
gs_unref_ptrarray GPtrArray *boostree_loader_configs = NULL;
guint i;
if (!_ostree_sysroot_read_boot_loader_configs (self->sysroot, bootversion, &boostree_loader_configs,
cancellable, error))
goto out;
for (i = 0; i < boostree_loader_configs->len; i++)
{
OstreeBootconfigParser *config = boostree_loader_configs->pdata[i];
const char *val;
val = ostree_bootconfig_parser_get (config, "title");
if (!val)
val = "(Untitled)";
if (regenerate_default && i == 0)
{
g_ptr_array_add (new_lines, g_strdup_printf ("DEFAULT %s", val));
}
g_ptr_array_add (new_lines, g_strdup_printf ("LABEL %s", val));
val = ostree_bootconfig_parser_get (config, "linux");
if (!val)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"No \"linux\" key in bootloader config");
goto out;
}
g_ptr_array_add (new_lines, g_strdup_printf ("\tKERNEL %s", val));
val = ostree_bootconfig_parser_get (config, "initrd");
if (val)
g_ptr_array_add (new_lines, g_strdup_printf ("\tINITRD %s", val));
val = ostree_bootconfig_parser_get (config, "options");
if (val)
g_ptr_array_add (new_lines, g_strdup_printf ("\tAPPEND %s", val));
}
ret = TRUE;
out:
return ret;
}
static gboolean
append_config_from_loader_entries (OstreeBootloaderSyslinux *self,
gboolean regenerate_default,
int bootversion,
GPtrArray *new_lines,
GCancellable *cancellable,
GError **error)
{
g_autoptr(GPtrArray) loader_configs = NULL;
if (!_ostree_sysroot_read_boot_loader_configs (self->sysroot, bootversion, &loader_configs,
cancellable, error))
return FALSE;
for (guint i = 0; i < loader_configs->len; i++)
{
OstreeBootconfigParser *config = loader_configs->pdata[i];
const char *val = ostree_bootconfig_parser_get (config, "title");
if (!val)
val = "(Untitled)";
if (regenerate_default && i == 0)
g_ptr_array_add (new_lines, g_strdup_printf ("DEFAULT %s", val));
g_ptr_array_add (new_lines, g_strdup_printf ("LABEL %s", val));
val = ostree_bootconfig_parser_get (config, "linux");
if (!val)
return glnx_throw (error, "No \"linux\" key in bootloader config");
g_ptr_array_add (new_lines, g_strdup_printf ("\tKERNEL %s", val));
val = ostree_bootconfig_parser_get (config, "initrd");
if (val)
g_ptr_array_add (new_lines, g_strdup_printf ("\tINITRD %s", val));
val = ostree_bootconfig_parser_get (config, "devicetree");
if (val)
g_ptr_array_add (new_lines, g_strdup_printf ("\tDEVICETREE %s", val));
val = ostree_bootconfig_parser_get (config, "options");
if (val)
g_ptr_array_add (new_lines, g_strdup_printf ("\tAPPEND %s", val));
}
return TRUE;
}
static gboolean
create_config_from_boot_loader_entries (OstreeBootloaderUboot *self,
int bootversion,
GPtrArray *new_lines,
GCancellable *cancellable,
GError **error)
{
g_autoptr(GPtrArray) boot_loader_configs = NULL;
OstreeBootconfigParser *config;
const char *val;
g_autofree char *bootdir = NULL;
if (!_ostree_sysroot_read_boot_loader_configs (self->sysroot, bootversion, &boot_loader_configs,
cancellable, error))
return FALSE;
/* U-Boot doesn't support a menu so just pick the first one since the list is ordered */
config = boot_loader_configs->pdata[0];
val = ostree_bootconfig_parser_get (config, "linux");
if (!val)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"No \"linux\" key in bootloader config");
return FALSE;
}
g_ptr_array_add (new_lines, g_strdup_printf ("kernel_image=%s", val));
bootdir = strndup (val, strrchr(val, '/') - val);
g_ptr_array_add (new_lines, g_strdup_printf ("bootdir=%s/", bootdir));
val = ostree_bootconfig_parser_get (config, "initrd");
if (val)
g_ptr_array_add (new_lines, g_strdup_printf ("ramdisk_image=%s", val));
val = ostree_bootconfig_parser_get (config, "options");
if (val)
g_ptr_array_add (new_lines, g_strdup_printf ("bootargs=%s", val));
return TRUE;
}
/**
* ostree_sysroot_load:
* @self: Sysroot
* @cancellable: Cancellable
* @error: Error
*
* Load deployment list, bootversion, and subbootversion from the
* rootfs @self.
*/
gboolean
ostree_sysroot_load (OstreeSysroot *self,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
guint i;
int bootversion = 0;
int subbootversion = 0;
g_autoptr(GPtrArray) boot_loader_configs = NULL;
g_autoptr(GPtrArray) deployments = NULL;
g_clear_pointer (&self->deployments, g_ptr_array_unref);
g_clear_pointer (&self->booted_deployment, g_object_unref);
self->bootversion = -1;
self->subbootversion = -1;
if (!ensure_sysroot_fd (self, error))
goto out;
if (!read_current_bootversion (self, &bootversion, cancellable, error))
goto out;
if (!_ostree_sysroot_read_current_subbootversion (self, bootversion, &subbootversion,
cancellable, error))
goto out;
if (!_ostree_sysroot_read_boot_loader_configs (self, bootversion, &boot_loader_configs,
cancellable, error))
goto out;
deployments = g_ptr_array_new_with_free_func ((GDestroyNotify)g_object_unref);
for (i = 0; i < boot_loader_configs->len; i++)
{
OstreeBootconfigParser *config = boot_loader_configs->pdata[i];
if (!list_deployments_process_one_boot_entry (self, config, deployments,
cancellable, error))
goto out;
}
g_ptr_array_sort (deployments, compare_deployments_by_boot_loader_version_reversed);
for (i = 0; i < deployments->len; i++)
{
OstreeDeployment *deployment = deployments->pdata[i];
ostree_deployment_set_index (deployment, i);
}
if (!find_booted_deployment (self, deployments, &self->booted_deployment,
cancellable, error))
goto out;
self->bootversion = bootversion;
self->subbootversion = subbootversion;
self->deployments = deployments;
deployments = NULL; /* Transfer ownership */
self->loaded = TRUE;
ret = TRUE;
out:
return ret;
}
gboolean
_ostree_bootloader_grub2_generate_config (OstreeSysroot *sysroot,
int bootversion,
int target_fd,
GCancellable *cancellable,
GError **error)
{
gboolean ret = FALSE;
GString *output = g_string_new ("");
gs_unref_object GOutputStream *out_stream = NULL;
gs_unref_ptrarray GPtrArray *loader_configs = NULL;
guint i;
gsize bytes_written;
gboolean is_efi;
/* So... yeah. Just going to hardcode these. */
static const char hardcoded_video[] = "load_video\n"
"set gfxpayload=keep\n";
static const char hardcoded_insmods[] = "insmod gzio\n";
const char *grub2_boot_device_id =
g_getenv ("GRUB2_BOOT_DEVICE_ID");
const char *grub2_prepare_root_cache =
g_getenv ("GRUB2_PREPARE_ROOT_CACHE");
/* We must have been called via the wrapper script */
g_assert (grub2_boot_device_id != NULL);
g_assert (grub2_prepare_root_cache != NULL);
/* Passed from the parent */
is_efi = g_getenv ("_OSTREE_GRUB2_IS_EFI") != NULL;
out_stream = g_unix_output_stream_new (target_fd, FALSE);
if (!_ostree_sysroot_read_boot_loader_configs (sysroot, bootversion,
&loader_configs,
cancellable, error))
goto out;
for (i = 0; i < loader_configs->len; i++)
{
OstreeBootconfigParser *config = loader_configs->pdata[i];
const char *title;
const char *options;
const char *kernel;
const char *initrd;
char *quoted_title = NULL;
char *uuid = NULL;
char *quoted_uuid = NULL;
title = ostree_bootconfig_parser_get (config, "title");
if (!title)
title = "(Untitled)";
kernel = ostree_bootconfig_parser_get (config, "linux");
quoted_title = g_shell_quote (title);
uuid = g_strdup_printf ("ostree-%u-%s", (guint)i, grub2_boot_device_id);
quoted_uuid = g_shell_quote (uuid);
g_string_append_printf (output, "menuentry %s --class gnu-linux --class gnu --class os --unrestricted %s {\n", quoted_title, quoted_uuid);
g_free (uuid);
g_free (quoted_title);
g_free (quoted_uuid);
/* Hardcoded sections */
g_string_append (output, hardcoded_video);
g_string_append (output, hardcoded_insmods);
g_string_append (output, grub2_prepare_root_cache);
g_string_append_c (output, '\n');
if (!kernel)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"No \"linux\" key in bootloader config");
goto out;
}
if (is_efi)
g_string_append (output, "linuxefi ");
else
g_string_append (output, "linux16 ");
g_string_append (output, kernel);
options = ostree_bootconfig_parser_get (config, "options");
if (options)
{
g_string_append_c (output, ' ');
g_string_append (output, options);
}
g_string_append_c (output, '\n');
initrd = ostree_bootconfig_parser_get (config, "initrd");
if (initrd)
{
if (is_efi)
g_string_append (output, "initrdefi ");
else
g_string_append (output, "initrd16 ");
g_string_append (output, initrd);
g_string_append_c (output, '\n');
}
g_string_append (output, "}\n");
}
if (!g_output_stream_write_all (out_stream, output->str, output->len,
&bytes_written, cancellable, error))
goto out;
ret = TRUE;
out:
if (output)
g_string_free (output, TRUE);
return ret;
}
