OpenBSD-4.6/usr.sbin/amd/amq/amq.c
/*
* Copyright (c) 1990 Jan-Simon Pendry
* Copyright (c) 1990 Imperial College of Science, Technology & Medicine
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Jan-Simon Pendry at Imperial College, London.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* from: @(#)amq.c 8.1 (Berkeley) 6/7/93
* $Id: amq.c,v 1.12 2007/02/18 08:34:38 jmc Exp $
*/
/*
* Automounter query tool
*/
#ifndef lint
char copyright[] = "\
@(#)Copyright (c) 1990 Jan-Simon Pendry\n\
@(#)Copyright (c) 1990 Imperial College of Science, Technology & Medicine\n\
@(#)Copyright (c) 1990, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char rcsid[] = "$Id: amq.c,v 1.12 2007/02/18 08:34:38 jmc Exp $";
static char sccsid[] = "@(#)amq.c 8.1 (Berkeley) 6/7/93";
#endif /* not lint */
#include "am.h"
#include "amq.h"
#include <stdio.h>
#include <fcntl.h>
#include <netdb.h>
#include <unistd.h>
static int privsock(int);
static int flush_flag;
static int minfo_flag;
static int unmount_flag;
static int stats_flag;
static int getvers_flag;
static char *debug_opts;
static char *logfile;
static char *mount_map;
static char *xlog_optstr;
static char localhost[] = "localhost";
static char *def_server = localhost;
extern int optind;
extern char *optarg;
static struct timeval tmo = { 10, 0 };
#define TIMEOUT tmo
enum show_opt { Full, Stats, Calc, Short, ShowDone };
/*
* If (e) is Calc then just calculate the sizes
* Otherwise display the mount node on stdout
*/
static void
show_mti(amq_mount_tree *mt, enum show_opt e, int *mwid, int *dwid,
int *twid)
{
switch (e) {
case Calc: {
int mw = strlen(mt->mt_mountinfo);
int dw = strlen(mt->mt_directory);
int tw = strlen(mt->mt_type);
if (mw > *mwid)
*mwid = mw;
if (dw > *dwid)
*dwid = dw;
if (tw > *twid)
*twid = tw;
break;
}
case Full: {
struct tm *tp = localtime((time_t *) &mt->mt_mounttime);
printf("%-*.*s %-*.*s %-*.*s %s\n\t%-5d %-7d %-6d"
" %-7d %-7d %-6d %02d/%02d/%02d %02d:%02d:%02d\n",
*dwid, *dwid, *mt->mt_directory ? mt->mt_directory : "/",
*twid, *twid, mt->mt_type, *mwid, *mwid,
mt->mt_mountinfo, mt->mt_mountpoint, mt->mt_mountuid,
mt->mt_getattr, mt->mt_lookup, mt->mt_readdir,
mt->mt_readlink, mt->mt_statfs,
tp->tm_year > 99 ? tp->tm_year - 100 : tp->tm_year,
tp->tm_mon+1, tp->tm_mday,
tp->tm_hour, tp->tm_min, tp->tm_sec);
break;
}
case Stats: {
struct tm *tp = localtime((time_t *) &mt->mt_mounttime);
printf("%-*.*s %-5d %-7d %-6d %-7d %-7d %-6d"
" %02d/%02d/%02d %02d:%02d:%02d\n",
*dwid, *dwid, *mt->mt_directory ? mt->mt_directory : "/",
mt->mt_mountuid, mt->mt_getattr, mt->mt_lookup,
mt->mt_readdir, mt->mt_readlink, mt->mt_statfs,
tp->tm_year > 99 ? tp->tm_year - 100 : tp->tm_year,
tp->tm_mon+1, tp->tm_mday,
tp->tm_hour, tp->tm_min, tp->tm_sec);
break;
}
case Short: {
printf("%-*.*s %-*.*s %-*.*s %s\n",
*dwid, *dwid, *mt->mt_directory ? mt->mt_directory : "/",
*twid, *twid, mt->mt_type, *mwid, *mwid,
mt->mt_mountinfo, mt->mt_mountpoint);
break;
}
}
}
/*
* Display a mount tree.
*/
static void
show_mt(amq_mount_tree *mt, enum show_opt e, int *mwid, int *dwid,
int *pwid)
{
while (mt) {
show_mti(mt, e, mwid, dwid, pwid);
show_mt(mt->mt_next, e, mwid, dwid, pwid);
mt = mt->mt_child;
}
}
static void
show_mi(amq_mount_info_list *ml, enum show_opt e, int *mwid,
int *dwid, int *twid)
{
int i;
switch (e) {
case Calc: {
for (i = 0; i < ml->amq_mount_info_list_len; i++) {
amq_mount_info *mi = &ml->amq_mount_info_list_val[i];
int mw = strlen(mi->mi_mountinfo);
int dw = strlen(mi->mi_mountpt);
int tw = strlen(mi->mi_type);
if (mw > *mwid)
*mwid = mw;
if (dw > *dwid)
*dwid = dw;
if (tw > *twid)
*twid = tw;
}
break;
}
case Full: {
for (i = 0; i < ml->amq_mount_info_list_len; i++) {
amq_mount_info *mi = &ml->amq_mount_info_list_val[i];
printf("%-*.*s %-*.*s %-*.*s %-3d %s is %s",
*mwid, *mwid, mi->mi_mountinfo,
*dwid, *dwid, mi->mi_mountpt,
*twid, *twid, mi->mi_type,
mi->mi_refc, mi->mi_fserver,
mi->mi_up > 0 ? "up" :
mi->mi_up < 0 ? "starting" : "down");
if (mi->mi_error > 0) {
#ifdef HAS_STRERROR
printf(" (%s)", strerror(mi->mi_error));
#else
extern char *sys_errlist[];
extern int sys_nerr;
if (mi->mi_error < sys_nerr)
printf(" (%s)", sys_errlist[mi->mi_error]);
else
printf(" (Error %d)", mi->mi_error);
#endif
} else if (mi->mi_error < 0) {
fputs(" (in progress)", stdout);
}
fputc('\n', stdout);
}
break;
}
}
}
/*
* Display general mount statistics
*/
static void
show_ms(amq_mount_stats *ms)
{
printf("requests stale mount mount unmount\n"
"deferred fhandles ok failed failed\n"
"%-9d %-9d %-9d %-9d %-9d\n",
ms->as_drops, ms->as_stale, ms->as_mok, ms->as_merr, ms->as_uerr);
}
static bool_t
xdr_pri_free(xdrproc_t xdr_args, void *args_ptr)
{
XDR xdr;
xdr.x_op = XDR_FREE;
return ((*xdr_args)(&xdr, args_ptr));
}
/*
* MAIN
*/
int
main(int argc, char *argv[])
{
int nodefault = 0, opt_ch, errs = 0, s;
struct sockaddr_in server_addr;
struct hostent *hp;
CLIENT *clnt;
char *server;
/*
* Parse arguments
*/
while ((opt_ch = getopt(argc, argv, "fh:l:msuvx:D:M:")) != -1)
switch (opt_ch) {
case 'f':
flush_flag = 1;
nodefault = 1;
break;
case 'h':
def_server = optarg;
break;
case 'l':
logfile = optarg;
nodefault = 1;
break;
case 'm':
minfo_flag = 1;
nodefault = 1;
break;
case 's':
stats_flag = 1;
nodefault = 1;
break;
case 'u':
unmount_flag = 1;
nodefault = 1;
break;
case 'v':
getvers_flag = 1;
nodefault = 1;
break;
case 'x':
xlog_optstr = optarg;
nodefault = 1;
break;
case 'D':
debug_opts = optarg;
nodefault = 1;
break;
case 'M':
mount_map = optarg;
nodefault = 1;
break;
default:
errs = 1;
break;
}
if (optind == argc) {
if (unmount_flag)
errs = 1;
}
if (errs) {
show_usage:
fprintf(stderr, "usage: %s [-fmsuv] [-h hostname] "
"[directory ...]\n", __progname);
exit(1);
}
server = def_server;
/*
* Get address of server
*/
if ((hp = gethostbyname(server)) == 0 && strcmp(server, localhost) != 0) {
fprintf(stderr, "%s: Can't get address of %s\n", __progname, server);
exit(1);
}
bzero(&server_addr, sizeof server_addr);
server_addr.sin_family = AF_INET;
if (hp) {
bcopy((void *)hp->h_addr, (void *)&server_addr.sin_addr,
sizeof(server_addr.sin_addr));
} else {
/* fake "localhost" */
server_addr.sin_addr.s_addr = htonl(0x7f000001);
}
/*
* Create RPC endpoint
*/
s = privsock(SOCK_STREAM);
clnt = clnttcp_create(&server_addr, AMQ_PROGRAM, AMQ_VERSION, &s, 0, 0);
if (clnt == 0) {
close(s);
s = privsock(SOCK_DGRAM);
clnt = clntudp_create(&server_addr, AMQ_PROGRAM,
AMQ_VERSION, TIMEOUT, &s);
}
if (clnt == 0) {
fprintf(stderr, "%s: ", __progname);
clnt_pcreateerror(server);
exit(1);
}
/*
* Control debugging
*/
if (debug_opts) {
int *rc;
amq_setopt opt;
opt.as_opt = AMOPT_DEBUG;
opt.as_str = debug_opts;
rc = amqproc_setopt_1(&opt, clnt);
if (rc && *rc < 0) {
fprintf(stderr,
"%s: daemon not compiled for debug", __progname);
errs = 1;
} else if (!rc || *rc > 0) {
fprintf(stderr,
"%s: debug setting for \"%s\" failed\n",
__progname, debug_opts);
errs = 1;
}
}
/*
* Control logging
*/
if (xlog_optstr) {
int *rc;
amq_setopt opt;
opt.as_opt = AMOPT_XLOG;
opt.as_str = xlog_optstr;
rc = amqproc_setopt_1(&opt, clnt);
if (!rc || *rc) {
fprintf(stderr, "%s: setting log level to \"%s\" failed\n",
__progname, xlog_optstr);
errs = 1;
}
}
/*
* Control log file
*/
if (logfile) {
int *rc;
amq_setopt opt;
opt.as_opt = AMOPT_LOGFILE;
opt.as_str = logfile;
rc = amqproc_setopt_1(&opt, clnt);
if (!rc || *rc) {
fprintf(stderr, "%s: setting logfile to \"%s\" failed\n",
__progname, logfile);
errs = 1;
}
}
/*
* Flush map cache
*/
if (flush_flag) {
int *rc;
amq_setopt opt;
opt.as_opt = AMOPT_FLUSHMAPC;
opt.as_str = "";
rc = amqproc_setopt_1(&opt, clnt);
if (!rc || *rc) {
fprintf(stderr,
"%s: amd on %s cannot flush the map cache\n",
__progname, server);
errs = 1;
}
}
/*
* Mount info
*/
if (minfo_flag) {
int dummy;
amq_mount_info_list *ml = amqproc_getmntfs_1(&dummy, clnt);
if (ml) {
int mwid = 0, dwid = 0, twid = 0;
show_mi(ml, Calc, &mwid, &dwid, &twid);
mwid++; dwid++; twid++;
show_mi(ml, Full, &mwid, &dwid, &twid);
} else {
fprintf(stderr, "%s: amd on %s cannot provide mount info\n",
__progname, server);
}
}
/*
* Mount map
*/
if (mount_map) {
int *rc;
do {
rc = amqproc_mount_1(&mount_map, clnt);
} while (rc && *rc < 0);
if (!rc || *rc > 0) {
if (rc)
errno = *rc;
else
errno = ETIMEDOUT;
fprintf(stderr, "%s: could not start new ", __progname);
perror("autmount point");
}
}
/*
* Get Version
*/
if (getvers_flag) {
amq_string *spp = amqproc_getvers_1((void *)0, clnt);
if (spp && *spp) {
printf("%s.\n", *spp);
free(*spp);
} else {
fprintf(stderr, "%s: failed to get version information\n",
__progname);
errs = 1;
}
}
/*
* Apply required operation to all remaining arguments
*/
if (optind < argc) {
do {
char *fs = argv[optind++];
if (unmount_flag) {
/*
* Unmount request
*/
amqproc_umnt_1(&fs, clnt);
} else {
/*
* Stats request
*/
amq_mount_tree_p *mtp = amqproc_mnttree_1(&fs, clnt);
if (mtp) {
amq_mount_tree *mt = *mtp;
if (mt) {
int mwid = 0, dwid = 0, twid = 0;
show_mt(mt, Calc, &mwid, &dwid, &twid);
mwid++;
dwid++;
twid++;
printf("%-*.*s Uid Getattr "
"Lookup RdDir RdLnk "
"Statfs Mounted@\n",
dwid, dwid, "What");
show_mt(mt, Stats, &mwid, &dwid, &twid);
} else {
fprintf(stderr,
"%s: %s not automounted\n",
__progname, fs);
}
xdr_pri_free(xdr_amq_mount_tree_p, mtp);
} else {
fprintf(stderr, "%s: ", __progname);
clnt_perror(clnt, server);
errs = 1;
}
}
} while (optind < argc);
} else if (unmount_flag) {
goto show_usage;
} else if (stats_flag) {
amq_mount_stats *ms = amqproc_stats_1((void *)0, clnt);
if (ms) {
show_ms(ms);
} else {
fprintf(stderr, "%s: ", __progname);
clnt_perror(clnt, server);
errs = 1;
}
} else if (!nodefault) {
amq_mount_tree_list *mlp = amqproc_export_1((void *)0, clnt);
if (mlp) {
enum show_opt e = Calc;
int mwid = 0, dwid = 0, pwid = 0;
while (e != ShowDone) {
int i;
for (i = 0; i < mlp->amq_mount_tree_list_len; i++) {
show_mt(mlp->amq_mount_tree_list_val[i],
e, &mwid, &dwid, &pwid);
}
mwid++;
dwid++;
pwid++;
if (e == Calc)
e = Short;
else if (e == Short)
e = ShowDone;
}
} else {
fprintf(stderr, "%s: ", __progname);
clnt_perror(clnt, server);
errs = 1;
}
}
exit(errs);
}
/*
* udpresport creates a datagram socket and attempts to bind it to a
* secure port.
* returns: The bound socket, or -1 to indicate an error.
*/
static int
inetresport(int ty)
{
struct sockaddr_in addr;
int alport, sock;
/* Use internet address family */
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = INADDR_ANY;
if ((sock = socket(AF_INET, ty, 0)) < 0)
return -1;
for (alport = IPPORT_RESERVED-1; alport > IPPORT_RESERVED/2 + 1; alport--) {
addr.sin_port = htons((u_short)alport);
if (bind(sock, (struct sockaddr *)&addr, sizeof (addr)) >= 0)
return sock;
if (errno != EADDRINUSE) {
close(sock);
return -1;
}
}
close(sock);
errno = EAGAIN;
return -1;
}
/*
* Privsock() calls inetresport() to attempt to bind a socket to a secure
* port. If inetresport() fails, privsock returns a magic socket number which
* indicates to RPC that it should make its own socket.
* returns: A privileged socket # or RPC_ANYSOCK.
*/
static int
privsock(int ty)
{
int sock = inetresport(ty);
if (sock < 0) {
errno = 0;
/* Couldn't get a secure port, let RPC make an insecure one */
sock = RPC_ANYSOCK;
}
return sock;
}
#ifdef DEBUG
void
xfree(char *f, char *l, void *p)
{
free(p);
}
#endif /* DEBUG */