1 /*- 2 * Copyright (c) 2009 Rick Macklem, University of Guelph 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 */ 27 28 #include <sys/cdefs.h> 29 __FBSDID("$FreeBSD$"); 30 31 #include <sys/param.h> 32 #include <sys/linker.h> 33 #include <sys/module.h> 34 #include <sys/socket.h> 35 36 #include <arpa/inet.h> 37 38 #include <netinet/in.h> 39 40 #include <nfs/nfssvc.h> 41 42 #include <fs/nfs/rpcv2.h> 43 #include <fs/nfs/nfsproto.h> 44 #include <fs/nfs/nfskpiport.h> 45 #include <fs/nfs/nfs.h> 46 47 #include <ctype.h> 48 #include <err.h> 49 #include <errno.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 #include <unistd.h> 54 55 #define DUMPSIZE 10000 56 57 static void dump_lockstate(char *); 58 static void dump_openstate(void); 59 static void usage(void); 60 static char *open_flags(uint32_t); 61 static char *deleg_flags(uint32_t); 62 static char *lock_flags(uint32_t); 63 static char *client_flags(uint32_t); 64 65 static struct nfsd_dumpclients dp[DUMPSIZE]; 66 static struct nfsd_dumplocks lp[DUMPSIZE]; 67 static char flag_string[20]; 68 69 int 70 main(int argc, char **argv) 71 { 72 int ch, openstate; 73 char *lockfile; 74 75 if (modfind("nfsd") < 0) 76 errx(1, "nfsd not loaded - self terminating"); 77 openstate = 0; 78 lockfile = NULL; 79 while ((ch = getopt(argc, argv, "ol:")) != -1) 80 switch (ch) { 81 case 'o': 82 openstate = 1; 83 break; 84 case 'l': 85 lockfile = optarg; 86 break; 87 default: 88 usage(); 89 } 90 argc -= optind; 91 argv += optind; 92 93 if (openstate == 0 && lockfile == NULL) 94 openstate = 1; 95 else if (openstate != 0 && lockfile != NULL) 96 errx(1, "-o and -l cannot both be specified"); 97 98 /* 99 * For -o, dump all open/lock state. 100 * For -l, dump lock state for that file. 101 */ 102 if (openstate != 0) 103 dump_openstate(); 104 else 105 dump_lockstate(lockfile); 106 exit(0); 107 } 108 109 static void 110 usage(void) 111 { 112 113 errx(1, "usage: nfsdumpstate [-o] [-l]"); 114 } 115 116 /* 117 * Dump all open/lock state. 118 */ 119 static void 120 dump_openstate(void) 121 { 122 struct nfsd_dumplist dumplist; 123 int cnt, i; 124 #ifdef INET6 125 char nbuf[INET6_ADDRSTRLEN]; 126 #endif 127 128 dumplist.ndl_size = DUMPSIZE; 129 dumplist.ndl_list = (void *)dp; 130 if (nfssvc(NFSSVC_DUMPCLIENTS, &dumplist) < 0) 131 errx(1, "Can't perform dump clients syscall"); 132 133 printf("%-13s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %-45s %s\n", 134 "Flags", "OpenOwner", "Open", "LockOwner", 135 "Lock", "Deleg", "OldDeleg", "Clientaddr", "ClientID"); 136 /* 137 * Loop through results, printing them out. 138 */ 139 cnt = 0; 140 while (dp[cnt].ndcl_clid.nclid_idlen > 0 && cnt < DUMPSIZE) { 141 printf("%-13s ", client_flags(dp[cnt].ndcl_flags)); 142 printf("%9d %9d %9d %9d %9d %9d ", 143 dp[cnt].ndcl_nopenowners, 144 dp[cnt].ndcl_nopens, 145 dp[cnt].ndcl_nlockowners, 146 dp[cnt].ndcl_nlocks, 147 dp[cnt].ndcl_ndelegs, 148 dp[cnt].ndcl_nolddelegs); 149 switch (dp[cnt].ndcl_addrfam) { 150 #ifdef INET 151 case AF_INET: 152 printf("%-45s ", 153 inet_ntoa(dp[cnt].ndcl_cbaddr.sin_addr)); 154 break; 155 #endif 156 #ifdef INET6 157 case AF_INET6: 158 if (inet_ntop(AF_INET6, &dp[cnt].ndcl_cbaddr.sin6_addr, 159 nbuf, sizeof(nbuf)) != NULL) 160 printf("%-45s ", nbuf); 161 else 162 printf("%-45s ", " "); 163 break; 164 #endif 165 default: 166 printf("%-45s ", " "); 167 break; 168 } 169 for (i = 0; i < dp[cnt].ndcl_clid.nclid_idlen; i++) 170 printf("%02x", dp[cnt].ndcl_clid.nclid_id[i]); 171 printf("\n"); 172 cnt++; 173 } 174 } 175 176 /* 177 * Dump the lock state for a file. 178 */ 179 static void 180 dump_lockstate(char *fname) 181 { 182 struct nfsd_dumplocklist dumplocklist; 183 int cnt, i; 184 #ifdef INET6 185 char nbuf[INET6_ADDRSTRLEN]; 186 #endif 187 188 dumplocklist.ndllck_size = DUMPSIZE; 189 dumplocklist.ndllck_list = (void *)lp; 190 dumplocklist.ndllck_fname = fname; 191 if (nfssvc(NFSSVC_DUMPLOCKS, &dumplocklist) < 0) 192 errx(1, "Can't dump locks for %s\n", fname); 193 194 printf("%-11s %-36s %-45s %s\n", 195 "Open/Lock", 196 " Stateid or Lock Range", 197 "Clientaddr", 198 "Owner and ClientID"); 199 /* 200 * Loop through results, printing them out. 201 */ 202 cnt = 0; 203 while (lp[cnt].ndlck_clid.nclid_idlen > 0 && cnt < DUMPSIZE) { 204 if (lp[cnt].ndlck_flags & NFSLCK_OPEN) 205 printf("%-11s %9d %08x %08x %08x ", 206 open_flags(lp[cnt].ndlck_flags), 207 lp[cnt].ndlck_stateid.seqid, 208 lp[cnt].ndlck_stateid.other[0], 209 lp[cnt].ndlck_stateid.other[1], 210 lp[cnt].ndlck_stateid.other[2]); 211 else if (lp[cnt].ndlck_flags & (NFSLCK_DELEGREAD | 212 NFSLCK_DELEGWRITE)) 213 printf("%-11s %9d %08x %08x %08x ", 214 deleg_flags(lp[cnt].ndlck_flags), 215 lp[cnt].ndlck_stateid.seqid, 216 lp[cnt].ndlck_stateid.other[0], 217 lp[cnt].ndlck_stateid.other[1], 218 lp[cnt].ndlck_stateid.other[2]); 219 else 220 printf("%-11s %17jd %17jd ", 221 lock_flags(lp[cnt].ndlck_flags), 222 lp[cnt].ndlck_first, 223 lp[cnt].ndlck_end); 224 switch (lp[cnt].ndlck_addrfam) { 225 #ifdef INET 226 case AF_INET: 227 printf("%-45s ", 228 inet_ntoa(lp[cnt].ndlck_cbaddr.sin_addr)); 229 break; 230 #endif 231 #ifdef INET6 232 case AF_INET6: 233 if (inet_ntop(AF_INET6, &lp[cnt].ndlck_cbaddr.sin6_addr, 234 nbuf, sizeof(nbuf)) != NULL) 235 printf("%-45s ", nbuf); 236 else 237 printf("%-45s ", " "); 238 break; 239 #endif 240 default: 241 printf("%-45s ", " "); 242 break; 243 } 244 for (i = 0; i < lp[cnt].ndlck_owner.nclid_idlen; i++) 245 printf("%02x", lp[cnt].ndlck_owner.nclid_id[i]); 246 printf(" "); 247 for (i = 0; i < lp[cnt].ndlck_clid.nclid_idlen; i++) 248 printf("%02x", lp[cnt].ndlck_clid.nclid_id[i]); 249 printf("\n"); 250 cnt++; 251 } 252 } 253 254 /* 255 * Parse the Open/Lock flag bits and create a string to be printed. 256 */ 257 static char * 258 open_flags(uint32_t flags) 259 { 260 int i, j; 261 262 strlcpy(flag_string, "Open ", sizeof (flag_string)); 263 i = 5; 264 if (flags & NFSLCK_READACCESS) 265 flag_string[i++] = 'R'; 266 if (flags & NFSLCK_WRITEACCESS) 267 flag_string[i++] = 'W'; 268 flag_string[i++] = ' '; 269 flag_string[i++] = 'D'; 270 flag_string[i] = 'N'; 271 j = i; 272 if (flags & NFSLCK_READDENY) 273 flag_string[i++] = 'R'; 274 if (flags & NFSLCK_WRITEDENY) 275 flag_string[i++] = 'W'; 276 if (i == j) 277 i++; 278 flag_string[i] = '\0'; 279 return (flag_string); 280 } 281 282 static char * 283 deleg_flags(uint32_t flags) 284 { 285 286 if (flags & NFSLCK_DELEGREAD) 287 strlcpy(flag_string, "Deleg R", sizeof (flag_string)); 288 else 289 strlcpy(flag_string, "Deleg W", sizeof (flag_string)); 290 return (flag_string); 291 } 292 293 static char * 294 lock_flags(uint32_t flags) 295 { 296 297 if (flags & NFSLCK_READ) 298 strlcpy(flag_string, "Lock R", sizeof (flag_string)); 299 else 300 strlcpy(flag_string, "Lock W", sizeof (flag_string)); 301 return (flag_string); 302 } 303 304 static char * 305 client_flags(uint32_t flags) 306 { 307 308 flag_string[0] = '\0'; 309 if (flags & LCL_NEEDSCONFIRM) 310 strlcat(flag_string, "NC ", sizeof (flag_string)); 311 if (flags & LCL_CALLBACKSON) 312 strlcat(flag_string, "CB ", sizeof (flag_string)); 313 if (flags & LCL_GSS) 314 strlcat(flag_string, "GSS ", sizeof (flag_string)); 315 if (flags & LCL_ADMINREVOKED) 316 strlcat(flag_string, "REV", sizeof (flag_string)); 317 return (flag_string); 318 } 319