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