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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
*
* Copyright (C) 2014 Colin Walters <walters@verbum.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2 of the licence or (at
* your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#include <glib-unix.h>
#include "ot-admin-instutil-builtins.h"
#include "otutil.h"
#include "../libostree/ostree-kernel-args.h"
static gboolean opt_proc_cmdline;
static gboolean opt_merge;
static char **opt_replace;
static char **opt_append;
static GOptionEntry options[] = {
{ "import-proc-cmdline", 0, 0, G_OPTION_ARG_NONE, &opt_proc_cmdline, "Import current /proc/cmdline", NULL },
{ "merge", 0, 0, G_OPTION_ARG_NONE, &opt_merge, "Merge with previous command line", NULL },
{ "replace", 0, 0, G_OPTION_ARG_STRING_ARRAY, &opt_replace, "Set kernel argument, like root=/dev/sda1; this overrides any earlier argument with the same name", "KEY=VALUE" },
{ "append", 0, 0, G_OPTION_ARG_STRING_ARRAY, &opt_append, "Append kernel argument; useful with e.g. console= that can be used multiple times", "KEY=VALUE" },
{ NULL }
};
gboolean
ot_admin_instutil_builtin_set_kargs (int argc, char **argv, OstreeSysroot *sysroot, GCancellable *cancellable, GError **error)
{
gboolean ret = FALSE;
guint i;
gs_unref_ptrarray GPtrArray *deployments = NULL;
OstreeDeployment *first_deployment = NULL;
GOptionContext *context = NULL;
__attribute__((cleanup(_ostree_kernel_args_cleanup))) OstreeKernelArgs *kargs = NULL;
context = g_option_context_new ("ARGS - set new kernel command line arguments");
g_option_context_add_main_entries (context, options, NULL);
if (!g_option_context_parse (context, &argc, &argv, error))
goto out;
if (!ostree_sysroot_load (sysroot, cancellable, error))
goto out;
deployments = ostree_sysroot_get_deployments (sysroot);
if (deployments->len == 0)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Unable to find a deployment in sysroot");
goto out;
}
first_deployment = deployments->pdata[0];
kargs = _ostree_kernel_args_new ();
/* If they want the current kernel's args, they very likely don't
* want the ones from the merge.
*/
if (opt_proc_cmdline)
{
if (!_ostree_kernel_args_append_proc_cmdline (kargs, cancellable, error))
goto out;
}
else if (opt_merge)
{
OstreeBootconfigParser *bootconfig = ostree_deployment_get_bootconfig (first_deployment);
gs_strfreev char **previous_args = g_strsplit (ostree_bootconfig_parser_get (bootconfig, "options"), " ", -1);
_ostree_kernel_args_append_argv (kargs, previous_args);
}
if (opt_replace)
{
_ostree_kernel_args_replace_argv (kargs, opt_replace);
}
if (opt_append)
{
_ostree_kernel_args_append_argv (kargs, opt_append);
}
for (i = 1; i < argc; i++)
_ostree_kernel_args_append (kargs, argv[i]);
{
gs_strfreev char **kargs_strv = _ostree_kernel_args_to_strv (kargs);
if (!ostree_sysroot_deployment_set_kargs (sysroot, first_deployment,
kargs_strv,
cancellable, error))
goto out;
}
ret = TRUE;
out:
if (context)
g_option_context_free (context);
return ret;
}
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