Date: Tue, 28 Nov 2017 18:44:58 +0000 (UTC) From: Alan Somers <asomers@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r326336 - stable/10/cddl/contrib/opensolaris/cmd/zdb Message-ID: <201711281844.vASIiwhF021163@repo.freebsd.org>
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Author: asomers Date: Tue Nov 28 18:44:58 2017 New Revision: 326336 URL: https://svnweb.freebsd.org/changeset/base/326336 Log: MFC r324221: MFV r316861: 6866 zdb -l should return non-zero if it fails to find any label illumos/illumos-gate@64723e361134b2a2c45341334174f9d34002f8d0 https://github.com/illumos/illumos-gate/commit/64723e361134b2a2c45341334174f9d34002f8d0 https://www.illumos.org/issues/6866 Need this for #6865. To be generally more scripting-friendly, overload this issue with adding '-q' option which should skip printing any label information. Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: John Kennedy <john.kennedy@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Author: Yuri Pankov <yuri.pankov@nexenta.com> Modified: stable/10/cddl/contrib/opensolaris/cmd/zdb/zdb.8 stable/10/cddl/contrib/opensolaris/cmd/zdb/zdb.c Directory Properties: stable/10/ (props changed) Modified: stable/10/cddl/contrib/opensolaris/cmd/zdb/zdb.8 ============================================================================== --- stable/10/cddl/contrib/opensolaris/cmd/zdb/zdb.8 Tue Nov 28 18:35:58 2017 (r326335) +++ stable/10/cddl/contrib/opensolaris/cmd/zdb/zdb.8 Tue Nov 28 18:44:58 2017 (r326336) @@ -15,11 +15,12 @@ .\" Copyright 2012, Richard Lowe. .\" Copyright (c) 2012, Marcelo Araujo <araujo@FreeBSD.org>. .\" Copyright (c) 2012, 2014 by Delphix. All rights reserved. +.\" Copyright 2016 Nexenta Systems, Inc. .\" All Rights Reserved. .\" .\" $FreeBSD$ .\" -.Dd July 26, 2014 +.Dd October 1, 2017 .Dt ZDB 8 .Os .Sh NAME @@ -27,7 +28,7 @@ .Nd Display zpool debugging and consistency information .Sh SYNOPSIS .Nm -.Op Fl CumdibcsDvhLMXFPA +.Op Fl CmdibcsDvhLMXFPA .Op Fl e Op Fl p Ar path... .Op Fl t Ar txg .Op Fl U Ar cache @@ -64,7 +65,7 @@ .Ar poolname .Nm .Fl l -.Op Fl uA +.Op Fl Aqu .Ar device .Nm .Fl C @@ -156,9 +157,14 @@ dataset. If specified multiple times, display counts of each intent log transaction type. .It Fl l Ar device -Display the vdev labels from the specified device. +Read the vdev labels from the specified device. +Return 0 if a valid label was found, 1 if an error occurred, and 2 if no valid +labels were found. If the .Fl u +option is also specified, also display the uberblocks on this device. +If the +.Fl q option is also specified, also display the uberblocks on this device. .It Fl L Disable leak tracing and the loading of space maps. Modified: stable/10/cddl/contrib/opensolaris/cmd/zdb/zdb.c ============================================================================== --- stable/10/cddl/contrib/opensolaris/cmd/zdb/zdb.c Tue Nov 28 18:35:58 2017 (r326335) +++ stable/10/cddl/contrib/opensolaris/cmd/zdb/zdb.c Tue Nov 28 18:44:58 2017 (r326336) @@ -23,6 +23,7 @@ * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2011, 2016 by Delphix. All rights reserved. * Copyright (c) 2014 Integros [integros.com] + * Copyright 2016 Nexenta Systems, Inc. */ #include <stdio.h> @@ -118,7 +119,7 @@ static void usage(void) { (void) fprintf(stderr, - "Usage: %s [-CumMdibcsDvhLXFPAG] [-t txg] [-e [-p path...]] " + "Usage: %s [-CmMdibcsDvhLXFPAG] [-t txg] [-e [-p path...]] " "[-U config] [-I inflight I/Os] [-x dumpdir] [-o var=value] " "poolname [object...]\n" " %s [-divPA] [-e -p path...] [-U config] dataset " @@ -128,7 +129,7 @@ usage(void) " %s -R [-A] [-e [-p path...]] poolname " "vdev:offset:size[:flags]\n" " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n" - " %s -l [-uA] device\n" + " %s -l [-Aqu] device\n" " %s -C [-A] [-U config]\n\n", cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); @@ -139,7 +140,6 @@ usage(void) (void) fprintf(stderr, " If object numbers are specified, only " "those objects are dumped\n\n"); (void) fprintf(stderr, " Options to control amount of output:\n"); - (void) fprintf(stderr, " -u uberblock\n"); (void) fprintf(stderr, " -d dataset(s)\n"); (void) fprintf(stderr, " -i intent logs\n"); (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); @@ -153,7 +153,7 @@ usage(void) (void) fprintf(stderr, " -D dedup statistics\n"); (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); (void) fprintf(stderr, " -v verbose (applies to all others)\n"); - (void) fprintf(stderr, " -l dump label contents\n"); + (void) fprintf(stderr, " -l read label contents\n"); (void) fprintf(stderr, " -L disable leak tracking (do not " "load spacemaps)\n"); (void) fprintf(stderr, " -R read and display block from a " @@ -184,6 +184,8 @@ usage(void) "exiting\n"); (void) fprintf(stderr, " -o <variable>=<value> set global " "variable to an unsigned 32-bit integer value\n"); + (void) fprintf(stderr, " -q don't print label contents\n"); + (void) fprintf(stderr, " -u uberblock\n"); (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " "to make only that option verbose\n"); (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); @@ -2203,84 +2205,94 @@ dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashi } } -static void +static int dump_label(const char *dev) { int fd; vdev_label_t label; - char *path, *buf = label.vl_vdev_phys.vp_nvlist; + char path[MAXPATHLEN]; + char *buf = label.vl_vdev_phys.vp_nvlist; size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); struct stat64 statbuf; uint64_t psize, ashift; - int len = strlen(dev) + 1; + boolean_t label_found = B_FALSE; - if (strncmp(dev, ZFS_DISK_ROOTD, strlen(ZFS_DISK_ROOTD)) == 0) { - len++; - path = malloc(len); - (void) snprintf(path, len, "%s%s", ZFS_RDISK_ROOTD, - dev + strlen(ZFS_DISK_ROOTD)); - } else { - path = strdup(dev); - } + (void) strlcpy(path, dev, sizeof (path)); + if (dev[0] == '/') { + if (strncmp(dev, ZFS_DISK_ROOTD, + strlen(ZFS_DISK_ROOTD)) == 0) { + (void) snprintf(path, sizeof (path), "%s%s", + ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD)); + } + } else if (stat64(path, &statbuf) != 0) { + char *s; - if ((fd = open64(path, O_RDONLY)) < 0) { - (void) printf("cannot open '%s': %s\n", path, strerror(errno)); - free(path); - exit(1); + (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD, + dev); + if ((s = strrchr(dev, 's')) == NULL || !isdigit(*(s + 1))) + (void) strlcat(path, "s0", sizeof (path)); } - if (fstat64(fd, &statbuf) != 0) { + if (stat64(path, &statbuf) != 0) { (void) printf("failed to stat '%s': %s\n", path, strerror(errno)); - free(path); - (void) close(fd); exit(1); } if (S_ISBLK(statbuf.st_mode)) { (void) printf("cannot use '%s': character device required\n", path); - free(path); - (void) close(fd); exit(1); } + if ((fd = open64(path, O_RDONLY)) < 0) { + (void) printf("cannot open '%s': %s\n", path, strerror(errno)); + exit(1); + } + psize = statbuf.st_size; psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); for (int l = 0; l < VDEV_LABELS; l++) { nvlist_t *config = NULL; - (void) printf("--------------------------------------------\n"); - (void) printf("LABEL %d\n", l); - (void) printf("--------------------------------------------\n"); + if (!dump_opt['q']) { + (void) printf("------------------------------------\n"); + (void) printf("LABEL %d\n", l); + (void) printf("------------------------------------\n"); + } if (pread64(fd, &label, sizeof (label), vdev_label_offset(psize, l, 0)) != sizeof (label)) { - (void) printf("failed to read label %d\n", l); + if (!dump_opt['q']) + (void) printf("failed to read label %d\n", l); continue; } if (nvlist_unpack(buf, buflen, &config, 0) != 0) { - (void) printf("failed to unpack label %d\n", l); + if (!dump_opt['q']) + (void) printf("failed to unpack label %d\n", l); ashift = SPA_MINBLOCKSHIFT; } else { nvlist_t *vdev_tree = NULL; - dump_nvlist(config, 4); + if (!dump_opt['q']) + dump_nvlist(config, 4); if ((nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || (nvlist_lookup_uint64(vdev_tree, ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) ashift = SPA_MINBLOCKSHIFT; nvlist_free(config); + label_found = B_TRUE; } if (dump_opt['u']) dump_label_uberblocks(&label, ashift); } - free(path); (void) close(fd); + + return (label_found ? 0 : 2); } static uint64_t dataset_feature_count[SPA_FEATURES]; @@ -3652,7 +3664,7 @@ main(int argc, char **argv) spa_config_path = spa_config_path_env; while ((c = getopt(argc, argv, - "bcdhilmMI:suCDRSAFLXx:evp:t:U:PGo:")) != -1) { + "bcdhilmMI:suCDRSAFLXx:evp:t:U:PGo:q")) != -1) { switch (c) { case 'b': case 'c': @@ -3678,6 +3690,7 @@ main(int argc, char **argv) case 'X': case 'e': case 'P': + case 'q': dump_opt[c]++; break; case 'I': @@ -3781,10 +3794,8 @@ main(int argc, char **argv) usage(); } - if (dump_opt['l']) { - dump_label(argv[0]); - return (0); - } + if (dump_opt['l']) + return (dump_label(argv[0])); if (dump_opt['X'] || dump_opt['F']) rewind = ZPOOL_DO_REWIND |
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