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SUSE:SLE-15-SP7:GA
s390-tools
s390-tools-sles15sp3-Allow-multiple-device-argu...
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File s390-tools-sles15sp3-Allow-multiple-device-arguments.patch of Package s390-tools
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 | 6 - dasdfmt/dasdfmt.c | 197 +++++++++++++++++++++++++++++++----------------------- 2 files changed, 119 insertions(+), 84 deletions(-) --- a/dasdfmt/dasdfmt.8 +++ b/dasdfmt/dasdfmt.8 @@ -11,14 +11,14 @@ .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(s) to prepare them 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'). +(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 --- a/dasdfmt/dasdfmt.c +++ b/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 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 @@ 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 @@ 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 @@ 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 @@ 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 @@ "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 @@ 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 @@ 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 @@ 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 @@ 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 @@ /* 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 @@ 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 @@ } 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 @@ if (!g.ese || g.no_discard) return; - 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); if (err) error("Could not release space: %s", strerror(err)); @@ -1261,20 +1262,21 @@ 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; @@ -1282,19 +1284,19 @@ 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(); } @@ -1306,18 +1308,18 @@ 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"); @@ -1426,16 +1428,16 @@ 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; } } @@ -1453,12 +1455,12 @@ 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 " @@ -1472,7 +1474,7 @@ 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"); } @@ -1495,20 +1497,70 @@ 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); @@ -1644,6 +1696,9 @@ 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"); @@ -1662,48 +1717,28 @@ 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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