317 lines
7.7 KiB
C
317 lines
7.7 KiB
C
/*-
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* Copyright (c) 2009 Rick Macklem, University of Guelph
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/linker.h>
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#include <sys/module.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <nfs/nfssvc.h>
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#include <fs/nfs/rpcv2.h>
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#include <fs/nfs/nfsproto.h>
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#include <fs/nfs/nfskpiport.h>
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#include <fs/nfs/nfs.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#define DUMPSIZE 10000
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static void dump_lockstate(char *);
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static void dump_openstate(void);
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static void usage(void) __dead2;
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static char *open_flags(uint32_t);
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static char *deleg_flags(uint32_t);
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static char *lock_flags(uint32_t);
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static char *client_flags(uint32_t);
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static struct nfsd_dumpclients dp[DUMPSIZE];
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static struct nfsd_dumplocks lp[DUMPSIZE];
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static char flag_string[20];
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int
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main(int argc, char **argv)
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{
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int ch, openstate;
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char *lockfile;
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if (modfind("nfsd") < 0)
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errx(1, "nfsd not loaded - self terminating");
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openstate = 0;
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lockfile = NULL;
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while ((ch = getopt(argc, argv, "ol:")) != -1)
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switch (ch) {
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case 'o':
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openstate = 1;
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break;
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case 'l':
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lockfile = optarg;
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break;
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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if (openstate == 0 && lockfile == NULL)
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openstate = 1;
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else if (openstate != 0 && lockfile != NULL)
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errx(1, "-o and -l cannot both be specified");
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/*
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* For -o, dump all open/lock state.
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* For -l, dump lock state for that file.
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*/
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if (openstate != 0)
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dump_openstate();
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else
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dump_lockstate(lockfile);
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exit(0);
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}
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static void
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usage(void)
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{
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errx(1, "usage: nfsdumpstate [-o] [-l]");
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}
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/*
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* Dump all open/lock state.
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*/
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static void
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dump_openstate(void)
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{
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struct nfsd_dumplist dumplist;
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int cnt, i;
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#ifdef INET6
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char nbuf[INET6_ADDRSTRLEN];
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#endif
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dumplist.ndl_size = DUMPSIZE;
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dumplist.ndl_list = (void *)dp;
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if (nfssvc(NFSSVC_DUMPCLIENTS, &dumplist) < 0)
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errx(1, "Can't perform dump clients syscall");
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printf("%-13s %9.9s %9.9s %9.9s %9.9s %9.9s %9.9s %-45s %s\n",
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"Flags", "OpenOwner", "Open", "LockOwner",
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"Lock", "Deleg", "OldDeleg", "Clientaddr", "ClientID");
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/*
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* Loop through results, printing them out.
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*/
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cnt = 0;
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while (dp[cnt].ndcl_clid.nclid_idlen > 0 && cnt < DUMPSIZE) {
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printf("%-13s ", client_flags(dp[cnt].ndcl_flags));
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printf("%9d %9d %9d %9d %9d %9d ",
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dp[cnt].ndcl_nopenowners,
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dp[cnt].ndcl_nopens,
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dp[cnt].ndcl_nlockowners,
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dp[cnt].ndcl_nlocks,
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dp[cnt].ndcl_ndelegs,
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dp[cnt].ndcl_nolddelegs);
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switch (dp[cnt].ndcl_addrfam) {
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#ifdef INET
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case AF_INET:
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printf("%-45s ",
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inet_ntoa(dp[cnt].ndcl_cbaddr.sin_addr));
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break;
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#endif
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#ifdef INET6
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case AF_INET6:
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if (inet_ntop(AF_INET6, &dp[cnt].ndcl_cbaddr.sin6_addr,
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nbuf, sizeof(nbuf)) != NULL)
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printf("%-45s ", nbuf);
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else
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printf("%-45s ", " ");
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break;
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#endif
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default:
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printf("%-45s ", " ");
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break;
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}
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for (i = 0; i < dp[cnt].ndcl_clid.nclid_idlen; i++)
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printf("%02x", dp[cnt].ndcl_clid.nclid_id[i]);
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printf("\n");
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cnt++;
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}
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}
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/*
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* Dump the lock state for a file.
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*/
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static void
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dump_lockstate(char *fname)
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{
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struct nfsd_dumplocklist dumplocklist;
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int cnt, i;
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#ifdef INET6
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char nbuf[INET6_ADDRSTRLEN];
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#endif
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dumplocklist.ndllck_size = DUMPSIZE;
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dumplocklist.ndllck_list = (void *)lp;
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dumplocklist.ndllck_fname = fname;
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if (nfssvc(NFSSVC_DUMPLOCKS, &dumplocklist) < 0)
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errx(1, "Can't dump locks for %s\n", fname);
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printf("%-11s %-36s %-45s %s\n",
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"Open/Lock",
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" Stateid or Lock Range",
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"Clientaddr",
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"Owner and ClientID");
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/*
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* Loop through results, printing them out.
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*/
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cnt = 0;
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while (lp[cnt].ndlck_clid.nclid_idlen > 0 && cnt < DUMPSIZE) {
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if (lp[cnt].ndlck_flags & NFSLCK_OPEN)
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printf("%-11s %9d %08x %08x %08x ",
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open_flags(lp[cnt].ndlck_flags),
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lp[cnt].ndlck_stateid.seqid,
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lp[cnt].ndlck_stateid.other[0],
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lp[cnt].ndlck_stateid.other[1],
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lp[cnt].ndlck_stateid.other[2]);
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else if (lp[cnt].ndlck_flags & (NFSLCK_DELEGREAD |
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NFSLCK_DELEGWRITE))
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printf("%-11s %9d %08x %08x %08x ",
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deleg_flags(lp[cnt].ndlck_flags),
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lp[cnt].ndlck_stateid.seqid,
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lp[cnt].ndlck_stateid.other[0],
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lp[cnt].ndlck_stateid.other[1],
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lp[cnt].ndlck_stateid.other[2]);
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else
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printf("%-11s %17jd %17jd ",
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lock_flags(lp[cnt].ndlck_flags),
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lp[cnt].ndlck_first,
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lp[cnt].ndlck_end);
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switch (lp[cnt].ndlck_addrfam) {
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#ifdef INET
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case AF_INET:
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printf("%-45s ",
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inet_ntoa(lp[cnt].ndlck_cbaddr.sin_addr));
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break;
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#endif
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#ifdef INET6
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case AF_INET6:
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if (inet_ntop(AF_INET6, &lp[cnt].ndlck_cbaddr.sin6_addr,
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nbuf, sizeof(nbuf)) != NULL)
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printf("%-45s ", nbuf);
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else
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printf("%-45s ", " ");
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break;
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#endif
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default:
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printf("%-45s ", " ");
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break;
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}
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for (i = 0; i < lp[cnt].ndlck_owner.nclid_idlen; i++)
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printf("%02x", lp[cnt].ndlck_owner.nclid_id[i]);
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printf(" ");
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for (i = 0; i < lp[cnt].ndlck_clid.nclid_idlen; i++)
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printf("%02x", lp[cnt].ndlck_clid.nclid_id[i]);
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printf("\n");
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cnt++;
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}
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}
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/*
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* Parse the Open/Lock flag bits and create a string to be printed.
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*/
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static char *
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open_flags(uint32_t flags)
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{
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int i, j;
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strlcpy(flag_string, "Open ", sizeof (flag_string));
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i = 5;
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if (flags & NFSLCK_READACCESS)
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flag_string[i++] = 'R';
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if (flags & NFSLCK_WRITEACCESS)
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flag_string[i++] = 'W';
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flag_string[i++] = ' ';
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flag_string[i++] = 'D';
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flag_string[i] = 'N';
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j = i;
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if (flags & NFSLCK_READDENY)
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flag_string[i++] = 'R';
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if (flags & NFSLCK_WRITEDENY)
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flag_string[i++] = 'W';
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if (i == j)
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i++;
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flag_string[i] = '\0';
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return (flag_string);
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}
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static char *
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deleg_flags(uint32_t flags)
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{
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if (flags & NFSLCK_DELEGREAD)
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strlcpy(flag_string, "Deleg R", sizeof (flag_string));
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else
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strlcpy(flag_string, "Deleg W", sizeof (flag_string));
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return (flag_string);
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}
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static char *
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lock_flags(uint32_t flags)
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{
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if (flags & NFSLCK_READ)
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strlcpy(flag_string, "Lock R", sizeof (flag_string));
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else
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strlcpy(flag_string, "Lock W", sizeof (flag_string));
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return (flag_string);
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}
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static char *
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client_flags(uint32_t flags)
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{
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flag_string[0] = '\0';
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if (flags & LCL_NEEDSCONFIRM)
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strlcat(flag_string, "NC ", sizeof (flag_string));
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if (flags & LCL_CALLBACKSON)
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strlcat(flag_string, "CB ", sizeof (flag_string));
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if (flags & LCL_GSS)
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strlcat(flag_string, "GSS ", sizeof (flag_string));
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if (flags & LCL_ADMINREVOKED)
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strlcat(flag_string, "REV", sizeof (flag_string));
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return (flag_string);
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}
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