1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <stdio.h> 30 #include <stdlib.h> 31 #include <string.h> 32 #include <stdarg.h> 33 #include <libintl.h> 34 #include <sys/types.h> 35 #include <sys/ioctl.h> 36 #include <kstat.h> 37 #include <locale.h> 38 #include <sys/fs/cachefs_log.h> 39 #include "stats.h" 40 41 void usage(char *); 42 void pr_err(char *, ...); 43 44 static int hflag = 0; 45 static char *fpath = NULL; 46 static int vflag = 0; 47 char *prog; 48 49 static void log_show(char *, char *); 50 51 int 52 main(int argc, char **argv) 53 { 54 int rc = 0, c; 55 int errflg = 0; 56 stats_cookie_t *fs = NULL; 57 char *logfile; 58 59 (void) setlocale(LC_ALL, ""); 60 #if !defined(TEXT_DOMAIN) 61 #define TEXT_DOMAIN "SYS_TEST" 62 #endif /* TEXT_DOMAIN */ 63 (void) textdomain(TEXT_DOMAIN); 64 65 if (prog = strrchr(argv[0], '/')) 66 ++prog; 67 else 68 prog = argv[0]; 69 70 while ((c = getopt(argc, argv, "hf:v")) != EOF) 71 switch (c) { 72 case 'h': 73 if (fpath != NULL) 74 ++errflg; 75 else 76 ++hflag; 77 break; 78 79 case 'f': 80 if (hflag) 81 ++errflg; 82 else 83 fpath = optarg; 84 break; 85 86 case 'v': 87 ++vflag; 88 break; 89 90 case '?': 91 default: 92 ++errflg; 93 break; 94 } 95 96 if ((errflg) || (optind != (argc - 1))) { 97 usage(NULL); 98 rc = -1; 99 goto out; 100 } 101 102 fs = stats_create_mountpath(argv[optind], prog); 103 if (fs == NULL) { 104 pr_err(gettext("Cannot initialize cachefs library\n")); 105 rc = 1; 106 goto out; 107 } 108 109 if (! stats_good(fs)) { 110 pr_err(stats_errorstr(fs)); 111 rc = stats_errno(fs); 112 goto out; 113 } 114 115 if ((logfile = stats_log_kernel_getname(fs)) == NULL) { 116 pr_err(stats_errorstr(fs)); 117 rc = stats_errno(fs); 118 goto out; 119 } 120 if ((logfile[0] == '\0') && (hflag) && (! vflag)) { 121 log_show(argv[optind], logfile); 122 goto out; 123 } 124 125 if (fpath != NULL) { 126 if ((stats_log_kernel_setname(fs, fpath) != 0) || 127 (stats_log_which(fs, CACHEFS_LOG_MOUNT, 1) != 0) || 128 (stats_log_which(fs, CACHEFS_LOG_UMOUNT, 1) != 0) || 129 (stats_log_which(fs, CACHEFS_LOG_REMOVE, 1) != 0) || 130 (stats_log_which(fs, CACHEFS_LOG_RMDIR, 1) != 0) || 131 (stats_log_which(fs, CACHEFS_LOG_TRUNCATE, 1) != 0) || 132 (stats_log_which(fs, CACHEFS_LOG_CREATE, 1) != 0) || 133 (stats_log_which(fs, CACHEFS_LOG_MKDIR, 1) != 0) || 134 (stats_log_which(fs, CACHEFS_LOG_RENAME, 1) != 0) || 135 (stats_log_which(fs, CACHEFS_LOG_SYMLINK, 1) != 0) || 136 (stats_log_which(fs, CACHEFS_LOG_UALLOC, 1) != 0) || 137 (stats_log_which(fs, CACHEFS_LOG_CSYMLINK, 1) != 0) || 138 (stats_log_which(fs, CACHEFS_LOG_FILLDIR, 1) != 0) || 139 (stats_log_which(fs, CACHEFS_LOG_MDCREATE, 1) != 0) || 140 (stats_log_which(fs, CACHEFS_LOG_NOCACHE, 1) != 0) || 141 (stats_log_which(fs, CACHEFS_LOG_CALLOC, 1) != 0) || 142 (stats_log_which(fs, CACHEFS_LOG_RFDIR, 1) != 0)) { 143 pr_err(stats_errorstr(fs)); 144 rc = stats_errno(fs); 145 goto out; 146 } 147 } else if (hflag) { 148 if (stats_log_kernel_setname(fs, NULL) != 0) { 149 pr_err(stats_errorstr(fs)); 150 rc = stats_errno(fs); 151 goto out; 152 } 153 } 154 155 if ((logfile = stats_log_kernel_getname(fs)) == NULL) { 156 pr_err(stats_errorstr(fs)); 157 rc = stats_errno(fs); 158 goto out; 159 } 160 161 log_show(argv[optind], logfile); 162 163 /* 164 * if they're changing state, inform them of other filesystems 165 * that they're changing state for by way of sharing the 166 * cache. 167 * 168 * or, if they're verbose (-v flag), tell them about the 169 * others. 170 */ 171 172 if (((fpath) || (hflag) || (vflag)) && (! stats_inerror(fs))) { 173 cachefs_kstat_key_t *k, *origk; 174 stats_cookie_t *sc; 175 int before = 0; 176 177 origk = stats_getkey(fs); 178 sc = stats_create_unbound(prog); 179 if (sc == NULL) { 180 pr_err(gettext("Cannot create stats object")); 181 rc = 1; 182 goto out; 183 } 184 185 while ((k = stats_next(sc)) != NULL) { 186 if (! k->ks_mounted) { 187 free(k); 188 continue; 189 } 190 if (strcmp((char *)(uintptr_t)origk->ks_cachedir, 191 (char *)(uintptr_t)k->ks_cachedir) != 0) { 192 free(k); 193 continue; 194 } 195 if (origk->ks_id == k->ks_id) { 196 free(k); 197 continue; 198 } 199 if (! before) 200 printf("\n"); 201 before = 1; 202 log_show((char *)(uintptr_t)k->ks_mountpoint, logfile); 203 free(k); 204 } 205 free(origk); 206 stats_destroy(sc); 207 } 208 209 if (stats_inerror(fs)) { 210 pr_err(stats_errorstr(fs)); 211 rc = stats_errno(fs); 212 } 213 214 out: 215 stats_destroy(fs); 216 return (rc); 217 } 218 219 static void 220 log_show(char *mount, char *logfile) 221 { 222 if (logfile[0] == '\0') 223 logfile = gettext("not logged"); 224 printf("%s: %s\n", logfile, mount); 225 } 226 227 /* 228 * 229 * usage 230 * 231 * Description: 232 * Prints a short usage message. 233 * Arguments: 234 * msgp message to include with the usage message 235 * Returns: 236 * Preconditions: 237 */ 238 239 void 240 usage(char *msgp) 241 { 242 if (msgp) { 243 pr_err("%s", msgp); 244 } 245 246 fprintf(stderr, 247 gettext("Usage: " 248 "cachefslog [ -v ] [-h | -f <logfile>] mountpoint\n")); 249 } 250 251 /* 252 * 253 * pr_err 254 * 255 * Description: 256 * Prints an error message to stderr. 257 * Arguments: 258 * fmt printf style format 259 * ... arguments for fmt 260 * Returns: 261 * Preconditions: 262 * precond(fmt) 263 */ 264 265 void 266 pr_err(char *fmt, ...) 267 { 268 va_list ap; 269 270 va_start(ap, fmt); 271 (void) fprintf(stderr, gettext("cachefslog: ")); 272 (void) vfprintf(stderr, fmt, ap); 273 (void) fprintf(stderr, "\n"); 274 va_end(ap); 275 } 276