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Initial s390-tools-2.0.0 import

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This commit is based on the s390-tools-1.39.0 version.

Changes on top of s390-tools-1.39.0:

 - Add MIT license to all source files
 - Add LICENSE file
 - Transform REAMDE to README.md (markdown)
 - Add AUTHORS.md file
 - Add CONTRIBUTING.md file
 - Move changelog from README to CHANGELOG.md file

Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
This commit is contained in:
Michael Holzheu
2017-08-07 16:13:17 +02:00
commit b627b8d8e1
647 changed files with 168974 additions and 0 deletions
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104
zdev/src/root.c Normal file
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/*
* zdev - Modify and display the persistent configuration of devices
*
* Copyright IBM Corp. 2016, 2017
*
* s390-tools is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See LICENSE for details.
*/
#include <stdlib.h>
#include "device.h"
#include "devtype.h"
#include "misc.h"
#include "path.h"
#include "root.h"
#include "select.h"
#include "setting.h"
#include "subtype.h"
/* Determine if the root device was modified. If it was modified, run the
* corresponding root-install scripts. */
exit_code_t root_check(void)
{
struct util_list *selected, *params, *mod = NULL;
struct selected_dev_node *sel;
struct device *dev;
char *params_str;
exit_code_t rc;
struct strlist_node *s;
struct devtype *dt;
debug("Checking for modified root device configuration\n");
/* Get list of devices that provide the root device. */
selected = selected_dev_list_new();
rc = select_by_path(NULL, selected, config_active, scope_mandatory,
NULL, NULL, PATH_ROOT, err_print);
if (rc)
goto out;
/* Determine if any of the devices or device types has been modified. */
mod = strlist_new();
util_list_iterate(selected, sel) {
dt = sel->st->devtype;
/* Check devtype. */
if (devtype_needs_writing(dt, config_persistent)) {
strlist_add(mod, "Device type %s",
sel->st->devtype->name);
}
/* Check devices. */
dev = device_list_find(sel->st->devices, sel->id, NULL);
if (dev && dev->persistent.exists &&
device_needs_writing(dev, config_persistent)) {
strlist_add(mod, "%s %s", dev->subtype->devname,
dev->id);
}
}
if (util_list_is_empty(mod))
goto out;
info("Note: Some of the changes affect devices providing the root "
"file system:\n");
util_list_iterate(mod, s)
info(" - %s\n", s->str);
info(" Additional steps such as rebuilding the RAM-disk might be "
"required.\n");
/* Check if script is available. */
if (!file_exists(PATH_ROOT_SCRIPT))
goto out;
/* Ask for confirmation. */
if (!confirm("Update persistent root device configuration now?")) {
rc = EXIT_ABORTED;
goto out;
}
/* Build the command line. */
params = strlist_new();
util_list_iterate(selected, sel) {
strlist_add(params, "%s", sel->st->name);
strlist_add(params, "%s", sel->id);
}
params_str = strlist_flatten(params, " ");
strlist_free(params);
/* Run update command. */
if (misc_system(err_delayed_print, "%s %s", PATH_ROOT_SCRIPT,
params_str) != 0) {
error("Failure while updating root device configuration\n");
delayed_print(DELAY_INDENT);
rc = EXIT_RUNTIME_ERROR;
}
free(params_str);
out:
strlist_free(mod);
selected_dev_list_free(selected);
return rc;
}