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; 124 125 dumplist.ndl_size = DUMPSIZE; 126 dumplist.ndl_list = (void *)dp; 127 if (nfssvc(NFSSVC_DUMPCLIENTS, &dumplist) < 0) 128 errx(1, "Can't perform dump clients syscall"); 129 130 printf("%-13s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %-15s %s\n", 131 "Flags", "OpenOwner", "Open", "LockOwner", 132 "Lock", "Deleg", "OldDeleg", "Clientaddr", "ClientID"); 133 /* 134 * Loop through results, printing them out. 135 */ 136 cnt = 0; 137 while (dp[cnt].ndcl_clid.nclid_idlen > 0 && cnt < DUMPSIZE) { 138 printf("%-13s ", client_flags(dp[cnt].ndcl_flags)); 139 printf("%9d %9d %9d %9d %9d %9d ", 140 dp[cnt].ndcl_nopenowners, 141 dp[cnt].ndcl_nopens, 142 dp[cnt].ndcl_nlockowners, 143 dp[cnt].ndcl_nlocks, 144 dp[cnt].ndcl_ndelegs, 145 dp[cnt].ndcl_nolddelegs); 146 if (dp[cnt].ndcl_addrfam == AF_INET) 147 printf("%-15s ", 148 inet_ntoa(dp[cnt].ndcl_cbaddr.sin_addr)); 149 for (i = 0; i < dp[cnt].ndcl_clid.nclid_idlen; i++) 150 printf("%02x", dp[cnt].ndcl_clid.nclid_id[i]); 151 printf("\n"); 152 cnt++; 153 } 154 } 155 156 /* 157 * Dump the lock state for a file. 158 */ 159 static void 160 dump_lockstate(char *fname) 161 { 162 struct nfsd_dumplocklist dumplocklist; 163 int cnt, i; 164 165 dumplocklist.ndllck_size = DUMPSIZE; 166 dumplocklist.ndllck_list = (void *)lp; 167 dumplocklist.ndllck_fname = fname; 168 if (nfssvc(NFSSVC_DUMPLOCKS, &dumplocklist) < 0) 169 errx(1, "Can't dump locks for %s\n", fname); 170 171 printf("%-11s %-36s %-15s %s\n", 172 "Open/Lock", 173 " Stateid or Lock Range", 174 "Clientaddr", 175 "Owner and ClientID"); 176 /* 177 * Loop through results, printing them out. 178 */ 179 cnt = 0; 180 while (lp[cnt].ndlck_clid.nclid_idlen > 0 && cnt < DUMPSIZE) { 181 if (lp[cnt].ndlck_flags & NFSLCK_OPEN) 182 printf("%-11s %9d %08x %08x %08x ", 183 open_flags(lp[cnt].ndlck_flags), 184 lp[cnt].ndlck_stateid.seqid, 185 lp[cnt].ndlck_stateid.other[0], 186 lp[cnt].ndlck_stateid.other[1], 187 lp[cnt].ndlck_stateid.other[2]); 188 else if (lp[cnt].ndlck_flags & (NFSLCK_DELEGREAD | 189 NFSLCK_DELEGWRITE)) 190 printf("%-11s %9d %08x %08x %08x ", 191 deleg_flags(lp[cnt].ndlck_flags), 192 lp[cnt].ndlck_stateid.seqid, 193 lp[cnt].ndlck_stateid.other[0], 194 lp[cnt].ndlck_stateid.other[1], 195 lp[cnt].ndlck_stateid.other[2]); 196 else 197 printf("%-11s %17jd %17jd ", 198 lock_flags(lp[cnt].ndlck_flags), 199 lp[cnt].ndlck_first, 200 lp[cnt].ndlck_end); 201 if (lp[cnt].ndlck_addrfam == AF_INET) 202 printf("%-15s ", 203 inet_ntoa(lp[cnt].ndlck_cbaddr.sin_addr)); 204 else 205 printf("%-15s ", " "); 206 for (i = 0; i < lp[cnt].ndlck_owner.nclid_idlen; i++) 207 printf("%02x", lp[cnt].ndlck_owner.nclid_id[i]); 208 printf(" "); 209 for (i = 0; i < lp[cnt].ndlck_clid.nclid_idlen; i++) 210 printf("%02x", lp[cnt].ndlck_clid.nclid_id[i]); 211 printf("\n"); 212 cnt++; 213 } 214 } 215 216 /* 217 * Parse the Open/Lock flag bits and create a string to be printed. 218 */ 219 static char * 220 open_flags(uint32_t flags) 221 { 222 int i, j; 223 224 strlcpy(flag_string, "Open ", sizeof (flag_string)); 225 i = 5; 226 if (flags & NFSLCK_READACCESS) 227 flag_string[i++] = 'R'; 228 if (flags & NFSLCK_WRITEACCESS) 229 flag_string[i++] = 'W'; 230 flag_string[i++] = ' '; 231 flag_string[i++] = 'D'; 232 flag_string[i] = 'N'; 233 j = i; 234 if (flags & NFSLCK_READDENY) 235 flag_string[i++] = 'R'; 236 if (flags & NFSLCK_WRITEDENY) 237 flag_string[i++] = 'W'; 238 if (i == j) 239 i++; 240 flag_string[i] = '\0'; 241 return (flag_string); 242 } 243 244 static char * 245 deleg_flags(uint32_t flags) 246 { 247 248 if (flags & NFSLCK_DELEGREAD) 249 strlcpy(flag_string, "Deleg R", sizeof (flag_string)); 250 else 251 strlcpy(flag_string, "Deleg W", sizeof (flag_string)); 252 return (flag_string); 253 } 254 255 static char * 256 lock_flags(uint32_t flags) 257 { 258 259 if (flags & NFSLCK_READ) 260 strlcpy(flag_string, "Lock R", sizeof (flag_string)); 261 else 262 strlcpy(flag_string, "Lock W", sizeof (flag_string)); 263 return (flag_string); 264 } 265 266 static char * 267 client_flags(uint32_t flags) 268 { 269 270 flag_string[0] = '\0'; 271 if (flags & LCL_NEEDSCONFIRM) 272 strlcat(flag_string, "NC ", sizeof (flag_string)); 273 if (flags & LCL_CALLBACKSON) 274 strlcat(flag_string, "CB ", sizeof (flag_string)); 275 if (flags & LCL_GSS) 276 strlcat(flag_string, "GSS ", sizeof (flag_string)); 277 if (flags & LCL_ADMINREVOKED) 278 strlcat(flag_string, "REV", sizeof (flag_string)); 279 return (flag_string); 280 } 281