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s390-tools/s390-tools-sles15sp3-Allow-multiple-device-arguments.patch

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From d6582bbaf0f3986a42f562046dc0caa9de89c75e Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Fri, 6 Oct 2017 08:58:17 +0200
Subject: [PATCH] dasdfmt: Allow multiple device arguments
Allow the user to specify several devices as arguments to dasdfmt.
Signed-off-by: Hannes Reinecke <hare@suse.com>
---
dasdfmt/dasdfmt.8 | 5 +-
dasdfmt/dasdfmt.c | 175 ++++++++++++++++++++++++++++++------------------------
2 files changed, 100 insertions(+), 80 deletions(-)
Index: s390-tools-2.30.0/dasdfmt/dasdfmt.8
===================================================================
--- s390-tools-2.30.0.orig/dasdfmt/dasdfmt.8
+++ s390-tools-2.30.0/dasdfmt/dasdfmt.8
@@ -11,14 +11,15 @@ dasdfmt \- formatting of DASD (ECKD) dis
.br
[-r \fIcylinder\fR] [-b \fIblksize\fR] [-l \fIvolser\fR] [-d \fIlayout\fR]
.br
- [-L] [-V] [-F] [-k] [-C] [-M \fImode\fR] \fIdevice\fR
+ [-L] [-V] [-F] [-k] [-C] [-M \fImode\fR] \fIdevice\fR [\fIdevice\fR]
.SH DESCRIPTION
-\fBdasdfmt\fR formats a DASD (ECKD) disk drive to prepare it
+\fBdasdfmt\fR formats one or several DASD (ECKD) disk drive to prepare it
for usage with Linux for S/390.
The \fIdevice\fR is the node of the device (e.g. '/dev/dasda').
Any device node created by udev for kernel 2.6 can be used
(e.g. '/dev/dasd/0.0.b100/disc').
+It is possible to specify up to 512 devices.
.br
\fBWARNING\fR: Careless usage of \fBdasdfmt\fR can result in
Index: s390-tools-2.30.0/dasdfmt/dasdfmt.c
===================================================================
--- s390-tools-2.30.0.orig/dasdfmt/dasdfmt.c
+++ s390-tools-2.30.0/dasdfmt/dasdfmt.c
@@ -25,6 +25,8 @@
#include "dasdfmt.h"
+#define MAX_DEVICES 512
+#define MAX_LENGTH 256
#define BUSIDSIZE 8
#define SEC_PER_DAY (60 * 60 * 24)
#define SEC_PER_HOUR (60 * 60)
@@ -57,7 +59,9 @@ static const struct util_prg prg = {
static struct dasdfmt_globals {
dasd_information2_t dasd_info;
char *dev_path; /* device path entered by user */
+ char dev_path_array[MAX_DEVICES][MAX_LENGTH]; /* Array of device paths entered by user */
char *dev_node; /* reliable device node determined by dasdfmt */
+ char dev_node_array[MAX_DEVICES][MAX_LENGTH]; /* Array of reliable device nodes determined by dasdfmt */
int verbosity;
int testmode;
int withoutprompt;
@@ -484,15 +488,15 @@ static void program_interrupt_signal(int
program_interrupt_in_progress = 1;
if (disk_disabled) {
- printf("Re-accessing the device...\n");
+ printf("Re-accessing %s...\n", g.dev_path);
disk_enable();
}
- printf("Rereading the partition table...\n");
+ printf("Rereading the partition table for %s...\n", g.dev_path);
rc = dasd_reread_partition_table(g.dev_node, 5);
if (rc) {
ERRMSG("%s: (signal handler) Re-reading partition table "
- "failed. (%s)\n", prog_name, strerror(rc));
+ "for %s failed. (%s)\n", prog_name, g.dev_path, strerror(rc));
} else {
printf("Exiting...\n");
}
@@ -512,9 +516,6 @@ static void get_device_name(int optind,
unsigned int maj, min;
struct stat dev_stat;
- if (optind + 1 < argc)
- error("More than one device specified!");
-
if (optind >= argc)
error("No device specified!");
@@ -610,10 +611,10 @@ static void check_disk(void)
error("the ioctl call to retrieve read/write status information failed: %s",
strerror(err));
if (ro)
- error("Disk is read only!");
+ error("Disk %s is read only!", g.dev_path);
if (!g.force) {
if (g.dasd_info.open_count > 1)
- error("Disk in use!");
+ error("Disk %s is in use!", g.dev_path);
}
if (strncmp(g.dasd_info.type, "ECKD", 4) != 0) {
warnx("Unsupported disk type");
@@ -700,7 +701,7 @@ static void set_geo(unsigned int *cylind
struct dasd_eckd_characteristics *characteristics;
if (g.verbosity > 0)
- printf("Retrieving disk geometry...\n");
+ printf("Retrieving disk geometry for %s...\n", g.dev_path);
characteristics = (struct dasd_eckd_characteristics *)
&g.dasd_info.characteristics;
@@ -728,13 +729,13 @@ static void set_label(volume_label_t *vl
"Cylinders above this limit will not be"
" accessible as a linux partition!\n"
"Type \"yes\" to continue, no will leave"
- " the disk untouched: ", LV_COMPAT_CYL);
+ " the %s disk untouched: ", LV_COMPAT_CYL, g.dev_path);
if (fgets(inp_buffer, sizeof(inp_buffer), stdin) == NULL)
return;
if (strcasecmp(inp_buffer, "yes") &&
strcasecmp(inp_buffer, "yes\n")) {
- printf("Omitting ioctl call (disk will "
- "NOT be formatted).\n");
+ printf("Omitting ioctl call (disk %s will "
+ "NOT be formatted).\n", g.dev_path);
return;
}
}
@@ -872,7 +873,7 @@ static void check_disk_format(unsigned i
check_params->start_unit = 0;
check_params->stop_unit = (cylinders * heads) - 1;
- printf("Checking format of the entire disk...\n");
+ printf("Checking format of the entire %s disk...\n", g.dev_path);
if (g.testmode) {
printf("Test mode active, omitting ioctl.\n");
@@ -896,7 +897,7 @@ static void check_disk_format(unsigned i
if (process_tracks(cylinders, heads, check_params))
error("Use --mode=full to perform a clean format.");
- printf("Done. Disk is fine.\n");
+ printf("Done. Disk %s is fine.\n", g.dev_path);
}
/*
@@ -946,8 +947,8 @@ static void dasdfmt_print_info(volume_la
printf("Device Type: %s Provisioned\n",
g.ese ? "Thinly" : "Fully");
- printf("\nI am going to format the device ");
- printf("%s in the following way:\n", g.dev_path);
+ printf("\nI am going to format %s ", g.dev_path);
+ printf("in the following way:\n");
printf(" Device number of device : 0x%x\n", g.dasd_info.devno);
printf(" Labelling device : %s\n",
(g.writenolabel) ? "no" : "yes");
@@ -1012,7 +1013,7 @@ static void dasdfmt_write_labels(volume_
int ipl1_record_len, ipl2_record_len;
if (g.verbosity > 0)
- printf("Retrieving dasd information... ");
+ printf("Retrieving dasd information for %s... ", g.dev_path);
get_blocksize(&blksize);
@@ -1030,7 +1031,7 @@ static void dasdfmt_write_labels(volume_
/* write empty bootstrap (initial IPL records) */
if (g.verbosity > 0)
- printf("Writing empty bootstrap...\n");
+ printf("Writing empty bootstrap to %s...\n", g.dev_path);
/*
* Note: ldl labels do not contain the key field
@@ -1089,7 +1090,7 @@ static void dasdfmt_write_labels(volume_
label_position = g.dasd_info.label_block * blksize;
if (g.verbosity > 0)
- printf("Writing label...\n");
+ printf("Writing label to %s...\n", g.dev_path);
rc = lseek(fd, label_position, SEEK_SET);
if (rc != label_position) {
@@ -1120,7 +1121,7 @@ static void dasdfmt_write_labels(volume_
}
if (g.verbosity > 0)
- printf("Writing VTOC... ");
+ printf("Writing VTOC to %s... ", g.dev_path);
label_position = (VTOC_START_CC * heads + VTOC_START_HH) *
geo.sectors * blksize;
@@ -1242,7 +1243,7 @@ static int dasdfmt_release_space(void)
if (!g.ese || g.no_discard)
return 0;
- printf("Releasing space for the entire device...\n");
+ printf("Releasing space for the entire %s device...\n", g.dev_path);
err = dasd_release_space(g.dev_node, &r);
/*
* Warn or Error on failing RAS depending on QUICK mode set explicitly or automatically
@@ -1270,20 +1271,21 @@ static void dasdfmt_prepare_and_format(u
int err;
if (!(g.withoutprompt && g.verbosity < 1))
- printf("Formatting the device. This may take a while "
- "(get yourself a coffee).\n");
+ printf("Formatting the %s device. This may take a while "
+ "(get yourself a coffee).\n", g.dev_path);
if (g.verbosity > 0)
- printf("Detaching the device...\n");
+ printf("Detaching the %s device...\n", g.dev_path);
disk_disable(g.dev_node);
if (g.verbosity > 0)
- printf("Invalidate first track...\n");
+ printf("Invalidate first track on %s...\n", g.dev_path);
err = dasd_format_disk(filedes, &temp);
if (err != 0)
- error("(invalidate first track) IOCTL BIODASDFMT failed: %s", strerror(err));
+ error("(invalidate first track) IOCTL BIODASDFMT failed for %s: %s",
+ g.dev_path, strerror(err));
/* except track 0 from standard formatting procss */
p->start_unit = 1;
@@ -1291,19 +1293,19 @@ static void dasdfmt_prepare_and_format(u
process_tracks(cylinders, heads, p);
if (g.verbosity > 0)
- printf("formatting tracks complete...\n");
+ printf("formatting tracks for %s complete...\n", g.dev_path);
temp.intensity = p->intensity;
if (g.verbosity > 0)
- printf("Revalidate first track...\n");
+ printf("Revalidate first track on %s...\n", g.dev_path);
err = dasd_format_disk(filedes, &temp);
if (err != 0)
error("(re-validate first track) IOCTL BIODASDFMT failed: %s", strerror(err));
if (g.verbosity > 0)
- printf("Re-accessing the device...\n");
+ printf("Re-accessing the %s device...\n", g.dev_path);
disk_enable();
}
@@ -1315,18 +1317,18 @@ static void dasdfmt_expand_format(unsign
format_data_t *p)
{
if (!(g.withoutprompt && g.verbosity < 1))
- printf("Formatting the device. This may take a while "
- "(get yourself a coffee).\n");
+ printf("Formatting the %s device. This may take a while "
+ "(get yourself a coffee).\n", g.dev_path);
if (g.verbosity > 0)
- printf("Detaching the device...\n");
+ printf("Detaching the %s device...\n", g.dev_path);
disk_disable(g.dev_node);
process_tracks(cylinders, heads, p);
if (g.verbosity > 0)
- printf("Formatting tracks complete...\n");
+ printf("formatting tracks for %s complete...\n", g.dev_path);
if (g.verbosity > 0)
printf("Re-accessing the device...\n");
@@ -1435,16 +1437,16 @@ static void do_format_dasd(volume_label_
if (!g.withoutprompt) {
printf("\n");
if (mode != EXPAND)
- printf("--->> ATTENTION! <<---\nAll data of "
- "that device will be lost.\n");
+ printf("--->> ATTENTION! <<---\nAll data on "
+ "the %s device will be lost.\n", g.dev_path);
printf("Type \"yes\" to continue, no will leave the "
"disk untouched: ");
if (fgets(inp_buffer, sizeof(inp_buffer), stdin) == NULL)
return;
if (strcasecmp(inp_buffer, "yes") &&
strcasecmp(inp_buffer, "yes\n")) {
- printf("Omitting ioctl call (disk will "
- "NOT be formatted).\n");
+ printf("Omitting ioctl call (disk %s will "
+ "NOT be formatted).\n", g.dev_path);
return;
}
}
@@ -1466,12 +1468,12 @@ static void do_format_dasd(volume_label_
break;
}
- printf("Finished formatting the device.\n");
+ printf("Finished formatting the %s device.\n", g.dev_path);
if (!(g.writenolabel || mode == EXPAND))
dasdfmt_write_labels(vlabel, cylinders, heads);
- printf("Rereading the partition table... ");
+ printf("Rereading the partition table for %s... ", g.dev_path);
err = dasd_reread_partition_table(g.dev_node, 5);
if (err != 0) {
ERRMSG("%s: error during rereading the partition "
@@ -1485,7 +1487,7 @@ static void do_format_dasd(volume_label_
static void eval_format_mode(void)
{
if (!g.force && g.mode_specified && g.ese && mode == EXPAND) {
- warnx("WARNING: The specified device is thin-provisioned");
+ warnx("WARNING: The specified device, %s, is thin-provisioned", g.dev_path);
warnx("Format mode 'expand' is not feasible.");
error("Use --mode=full or --mode=quick to perform a clean format");
}
@@ -1508,20 +1510,70 @@ static void set_prog_name(char *s)
prog_name = p + 1;
}
-int main(int argc, char *argv[])
+void process_dasd(volume_label_t *orig_vlabel, format_data_t format_params)
{
volume_label_t vlabel;
char old_volser[7];
-
char str[ERR_LENGTH];
+ unsigned int cylinders, heads; int rc;
+
+ rc = dasd_get_info(g.dev_node, &g.dasd_info);
+ if (rc != 0)
+ error("the ioctl call to retrieve device information failed: %s", strerror(rc));
+
+ g.ese = dasd_sys_ese(g.dev_node);
+ eval_format_mode();
+
+ /* Not sure this next line is needed in the new version of the code. */
+ memcpy(&vlabel, orig_vlabel, sizeof(vlabel));
+
+ /* Either let the user specify the blksize or get it from the kernel */
+ if (!g.blksize_specified) {
+ if (!(mode == FULL ||
+ g.dasd_info.format == DASD_FORMAT_NONE) || g.check)
+ get_blocksize(&format_params.blksize);
+ else
+ format_params = ask_user_for_blksize(format_params);
+ }
+
+ if (g.keep_volser) {
+ if (g.labelspec)
+ error("The -k and -l options are mutually exclusive");
+ if (!(format_params.intensity & DASD_FMT_INT_COMPAT))
+ error("WARNING: VOLSER cannot be kept when using the ldl format!");
+
+ if (dasdfmt_get_volser(old_volser) == 0)
+ vtoc_volume_label_set_volser(&vlabel, old_volser);
+ else
+ error("VOLSER not found on device %s", g.dev_path);
+ }
+
+ check_disk();
+
+ if (check_param(str, ERR_LENGTH, &format_params) < 0)
+ error("%s", str);
+
+ set_geo(&cylinders, &heads);
+ set_label(&vlabel, &format_params, cylinders);
+
+ if (g.check)
+ check_disk_format(cylinders, heads, &format_params);
+ else
+ do_format_dasd(&vlabel, &format_params, cylinders, heads);
+
+}
+
+int main(int argc, char *argv[])
+{
+ volume_label_t vlabel;
+
char buf[7];
char *blksize_param_str = NULL;
char *reqsize_param_str = NULL;
char *hashstep_str = NULL;
- int rc;
- unsigned int cylinders, heads;
+ int rc, numdev = 0, i;
/* Establish a handler for interrupt signals. */
signal(SIGTERM, program_interrupt_signal);
@@ -1657,6 +1709,9 @@ int main(int argc, char *argv[])
break; /* exit loop if finished */
}
+ /* Reset the value of rc since we're going to use it again later. */
+ rc = 0;
+
CHECK_SPEC_MAX_ONCE(g.blksize_specified, "blocksize");
CHECK_SPEC_MAX_ONCE(g.labelspec, "label");
CHECK_SPEC_MAX_ONCE(g.writenolabel, "omit-label-writing flag");
@@ -1675,48 +1730,28 @@ int main(int argc, char *argv[])
if (g.print_hashmarks)
PARSE_PARAM_INTO(g.hashstep, hashstep_str, 10, "hashstep");
- get_device_name(optind, argc, argv);
-
- rc = dasd_get_info(g.dev_node, &g.dasd_info);
- if (rc != 0)
- error("the ioctl call to retrieve device information failed: %s", strerror(rc));
-
- g.ese = dasd_sys_ese(g.dev_node);
- eval_format_mode();
+ while (optind < argc) {
+ get_device_name(optind, argc, argv);
+ strncpy(g.dev_path_array[numdev], g.dev_path, strlen(g.dev_path));
+ strncpy(g.dev_node_array[numdev], g.dev_node, strlen(g.dev_node));
- /* Either let the user specify the blksize or get it from the kernel */
- if (!g.blksize_specified) {
- if (!(mode == FULL ||
- g.dasd_info.format == DASD_FORMAT_NONE) || g.check)
- get_blocksize(&format_params.blksize);
- else
- format_params = ask_user_for_blksize(format_params);
+ optind++;
+ numdev++;
}
- if (g.keep_volser) {
- if (g.labelspec)
- error("The -k and -l options are mutually exclusive");
- if (!(format_params.intensity & DASD_FMT_INT_COMPAT))
- error("WARNING: VOLSER cannot be kept when using the ldl format!");
-
- if (dasdfmt_get_volser(old_volser) == 0)
- vtoc_volume_label_set_volser(&vlabel, old_volser);
- else
- error("VOLSER not found on device %s", g.dev_path);
- }
+ if (!numdev)
+ error("%s: No device specified!\n",
+ prog_name);
- check_disk();
+ if (numdev > 1 && g.labelspec)
+ error("Specifying a volser to be written doesn't make sense when formatting multiple DASD volumes.");
- if (check_param(str, ERR_LENGTH, &format_params) < 0)
- error("%s", str);
-
- set_geo(&cylinders, &heads);
- set_label(&vlabel, &format_params, cylinders);
-
- if (g.check)
- check_disk_format(cylinders, heads, &format_params);
- else
- do_format_dasd(&vlabel, &format_params, cylinders, heads);
+ for (i = 0; i < numdev; i++)
+ {
+ strncpy(g.dev_path, g.dev_path_array[i], strlen(g.dev_path_array[i])+1);
+ strncpy(g.dev_node, g.dev_node_array[i], strlen(g.dev_node_array[i])+1);
+ process_dasd(&vlabel, format_params);
+ }
free(g.dev_path);
free(g.dev_node);
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