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/* NetworkManager -- Network link manager
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Copyright (C) 2018 Red Hat, Inc.
*/
#include "nm-default.h"
#include "nm-core-utils.h"
#include "nm-core-internal.h"
#include "nm-keyfile-internal.h"
#include "nm-initrd-generator.h"
static void
output_conn (gpointer key, gpointer value, gpointer user_data)
{
const char *interface = key;
const char *basename = interface ?: "default_connection";
NMConnection *connection = value;
char *connections_dir = user_data;
GKeyFile *file;
gs_free char *data = NULL;
GError *error = NULL;
gsize len;
if (!nm_connection_normalize (connection, NULL, NULL, &error)) {
g_printerr ("%s\n", error->message);
g_error_free (error);
return;
}
file = nm_keyfile_write (connection, NULL, NULL, &error);
if (file == NULL) {
g_printerr ("%s\n", error->message);
g_error_free (error);
return;
}
data = g_key_file_to_data (file, &len, &error);
if (!data) {
g_printerr ("%s\n", error->message);
g_error_free (error);
} else if (connections_dir) {
char *filename = g_build_filename (connections_dir, basename, NULL);
if (!nm_utils_file_set_contents (filename, data, len, 0600, &error)) {
g_printerr ("%s\n", error->message);
g_error_free (error);
}
g_free (filename);
} else {
g_printerr ("\n*** Connection '%s' ***\n\n%s\n", basename, data);
}
g_key_file_free (file);
}
#define DEFAULT_CONNECTIONS_DIR NMRUNDIR "/system-connections"
#define DEFAULT_ISCSIADM SBINDIR "/iscsiadm"
int
main (int argc, char *argv[])
{
GHashTable *connections;
GHashTable *ibft_blocks = NULL;
gs_free char *connections_dir = NULL;
gs_free char *iscsiadm = NULL;
gboolean dump_to_stdout = FALSE;
gboolean no_iscsi = FALSE;
gs_strfreev char **remaining = NULL;
GOptionEntry option_entries[] = {
{ "connections-dir", 'c', 0, G_OPTION_ARG_FILENAME, &connections_dir, "Output connection directory", DEFAULT_CONNECTIONS_DIR },
{ "iscsiadm", 'i', 0, G_OPTION_ARG_FILENAME, &iscsiadm, "The scsiadm binary for iBFT", DEFAULT_ISCSIADM },
{ "stdout", 's', 0, G_OPTION_ARG_NONE, &dump_to_stdout, "Dump connections to standard output", NULL },
{ "no-iscsi", 'n', 0, G_OPTION_ARG_NONE, &no_iscsi, "Skip iBFT parsing", NULL },
{ G_OPTION_REMAINING, '\0', 0, G_OPTION_ARG_STRING_ARRAY, &remaining, NULL, NULL },
{ NULL }
};
GOptionContext *option_context;
GError *error = NULL;
option_context = g_option_context_new ("-- [ip=...] [bridge=...] [team=...] [bond=...] [vlan=...] ... ");
g_option_context_set_summary (option_context, "Generate early NetworkManager configuration.");
g_option_context_set_description (option_context,
"This tool scans the command line for options relevant to network\n"
"configuration and creates configuration files for an early instance\n"
"of NetworkManager run from the initial ramdisk during early boot.");
g_option_context_add_main_entries (option_context, option_entries, GETTEXT_PACKAGE);
if (!g_option_context_parse (option_context, &argc, &argv, &error)) {
g_printerr ("%s\n", error->message);
return 1;
}
if (!remaining) {
/* No arguments, no networking. Don't bother. */
return 0;
}
if (!connections_dir)
connections_dir = g_strdup (DEFAULT_CONNECTIONS_DIR);
if (!iscsiadm)
iscsiadm = g_strdup (DEFAULT_ISCSIADM);
if (dump_to_stdout)
g_clear_pointer (&connections_dir, g_free);
if (no_iscsi)
g_clear_pointer (&iscsiadm, g_free);
if (connections_dir && g_mkdir_with_parents (connections_dir, 0755) != 0) {
g_printerr ("%s: %s\n", connections_dir, strerror (errno));
return 1;
}
if (iscsiadm) {
ibft_blocks = nmi_ibft_reader_load_blocks (iscsiadm, &error);
if (!ibft_blocks) {
g_printerr ("%s\n", error->message);
g_error_free (error);
}
/* Just don't fail yet and do our best. */
}
connections = nmi_cmdline_reader_parse (ibft_blocks, remaining);
g_hash_table_foreach (connections, output_conn, connections_dir);
if (ibft_blocks)
g_hash_table_destroy (ibft_blocks);
g_hash_table_destroy (connections);
return 0;
}
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