1998-08-23 22:07:21 +00:00
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/*
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2004-07-06 13:16:49 +00:00
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* Copyright (c) 1997-2004 Erez Zadok
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1998-08-23 22:07:21 +00:00
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* Copyright (c) 1990 Jan-Simon Pendry
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* Copyright (c) 1990 Imperial College of Science, Technology & Medicine
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Jan-Simon Pendry at Imperial College, London.
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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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* 3. All advertising materials mentioning features or use of this software
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1999-01-13 20:04:00 +00:00
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* must display the following acknowledgment:
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1998-08-23 22:07:21 +00:00
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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* %W% (Berkeley) %G%
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*
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2004-07-06 13:16:49 +00:00
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* $Id: fixmount.c,v 1.5.2.4 2004/01/06 03:15:23 ezk Exp $
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1999-09-15 05:45:17 +00:00
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* $FreeBSD$
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1998-08-23 22:07:21 +00:00
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*
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif /* HAVE_CONFIG_H */
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#include <am_defs.h>
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#define CREATE_TIMEOUT 2 /* seconds */
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#define CALL_TIMEOUT 5 /* seconds */
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#ifndef INADDR_NONE
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# define INADDR_NONE 0xffffffff
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#endif /* not INADDR_NONE */
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/* Constant defs */
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#define ALL 1
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#define DIRS 2
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#define DODUMP 0x1
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#define DOEXPORTS 0x2
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#define DOREMOVE 0x4
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#define DOVERIFY 0x8
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#define DOREMALL 0x10
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extern int fixmount_check_mount(char *host, struct in_addr hostaddr, char *path);
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static char dir_path[NFS_MAXPATHLEN];
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static char localhost[] = "localhost";
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1998-08-23 22:52:09 +00:00
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static char thishost[MAXHOSTNAMELEN + 1] = "";
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1998-08-23 22:07:21 +00:00
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static exports mntexports;
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static int quiet = 0;
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static int type = 0;
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static jmp_buf before_rpc;
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static mountlist mntdump;
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static struct in_addr thisaddr;
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static CLIENT *clnt_create_timeout(char *, struct timeval *);
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RETSIGTYPE create_timeout(int);
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int is_same_host(char *, char *, struct in_addr);
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int main(int, char *[]);
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int remove_all(CLIENT *, char *);
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int remove_mount(CLIENT *, char *, mountlist, int);
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void fix_rmtab(CLIENT *, char *, mountlist, int, int);
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void print_dump(mountlist);
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void usage(void);
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void
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usage(void)
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{
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fprintf(stderr, "usage: fixmount [-adervAqf] [-h hostname] host ...\n");
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exit(1);
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}
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/*
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* Check hostname against other name and its IP address
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*/
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int
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is_same_host(char *name1, char *name2, struct in_addr addr2)
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{
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if (strcasecmp(name1, name2) == 0) {
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return 1;
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} else if (addr2.s_addr == INADDR_NONE) {
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return 0;
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} else {
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static char lasthost[MAXHOSTNAMELEN] = "";
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static struct in_addr addr1;
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struct hostent *he;
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/*
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* To save nameserver lookups, and because this function
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* is typically called repeatedly on the same names,
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* cache the last lookup result and reuse it if possible.
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*/
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if (strcasecmp(name1, lasthost) == 0) {
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return (addr1.s_addr == addr2.s_addr);
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} else if (!(he = gethostbyname(name1))) {
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return 0;
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} else {
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strncpy(lasthost, name1, sizeof(lasthost) - 1);
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memcpy(&addr1, he->h_addr, sizeof(addr1));
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return (addr1.s_addr == addr2.s_addr);
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}
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}
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}
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/*
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* Print the binary tree in inorder so that output is sorted.
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*/
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void
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print_dump(mountlist mp)
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{
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if (mp == NULL)
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return;
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if (is_same_host(mp->ml_hostname, thishost, thisaddr)) {
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switch (type) {
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case ALL:
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printf("%s:%s\n", mp->ml_hostname, mp->ml_directory);
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break;
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case DIRS:
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printf("%s\n", mp->ml_directory);
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break;
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default:
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printf("%s\n", mp->ml_hostname);
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break;
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};
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}
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if (mp->ml_next)
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print_dump(mp->ml_next);
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}
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/*
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* remove entry from remote rmtab
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*/
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int
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remove_mount(CLIENT *client, char *host, mountlist ml, int fixit)
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{
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enum clnt_stat estat;
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struct timeval tv;
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char *pathp = dir_path;
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strncpy(dir_path, ml->ml_directory, sizeof(dir_path));
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if (!fixit) {
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printf("%s: bogus mount %s:%s\n", host, ml->ml_hostname, ml->ml_directory);
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fflush(stdout);
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} else {
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printf("%s: removing %s:%s\n", host, ml->ml_hostname, ml->ml_directory);
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fflush(stdout);
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tv.tv_sec = CALL_TIMEOUT;
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tv.tv_usec = 0;
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if ((estat = clnt_call(client,
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MOUNTPROC_UMNT,
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(XDRPROC_T_TYPE) xdr_dirpath,
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(char *) &pathp,
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(XDRPROC_T_TYPE) xdr_void,
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(char *) 0,
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tv)) != RPC_SUCCESS) {
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fprintf(stderr, "%s:%s MOUNTPROC_UMNT: ",
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host, ml->ml_directory);
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clnt_perrno(estat);
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fflush(stderr);
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return -1;
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}
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}
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return 0;
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}
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/*
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* fix mount list on remote host
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*/
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void
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fix_rmtab(CLIENT *client, char *host, mountlist mp, int fixit, int force)
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{
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mountlist p;
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struct hostent *he;
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struct in_addr hostaddr;
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/*
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* Obtain remote address for comparisons
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*/
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if ((he = gethostbyname(host))) {
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memcpy(&hostaddr, he->h_addr, sizeof(hostaddr));
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} else {
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hostaddr.s_addr = INADDR_NONE;
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}
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for (p = mp; p; p = p->ml_next) {
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if (is_same_host(p->ml_hostname, thishost, thisaddr)) {
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if (force || !fixmount_check_mount(host, hostaddr, p->ml_directory))
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remove_mount(client, host, p, fixit);
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}
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}
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}
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/*
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* remove all entries from remote rmtab
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*/
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int
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remove_all(CLIENT *client, char *host)
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{
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enum clnt_stat estat;
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struct timeval tv;
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printf("%s: removing ALL\n", host);
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fflush(stdout);
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tv.tv_sec = CALL_TIMEOUT;
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tv.tv_usec = 0;
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if ((estat = clnt_call(client,
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MOUNTPROC_UMNTALL,
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(XDRPROC_T_TYPE) xdr_void,
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(char *) 0,
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(XDRPROC_T_TYPE) xdr_void,
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(char *) 0,
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tv)) != RPC_SUCCESS) {
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/*
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* RPC_SYSTEMERROR is returned even if all went well
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*/
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if (estat != RPC_SYSTEMERROR) {
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fprintf(stderr, "%s MOUNTPROC_UMNTALL: ", host);
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clnt_perrno(estat);
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fflush(stderr);
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return -1;
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}
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}
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return 0;
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}
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/*
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* This command queries the NFS mount daemon for it's mount list and/or
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* it's exports list and prints them out.
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* See "NFS: Network File System Protocol Specification, RFC1094, Appendix A"
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* for detailed information on the protocol.
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*/
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int
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main(int argc, char *argv[])
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{
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AUTH *auth;
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CLIENT *client;
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char *host;
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enum clnt_stat estat;
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exports exp;
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extern char *optarg;
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extern int optind;
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groups grp;
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int ch;
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int force = 0;
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int morethanone;
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register int rpcs = 0;
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struct timeval tv;
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1998-08-23 22:52:09 +00:00
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while ((ch = getopt(argc, argv, "adervAqfh:")) != -1)
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1998-08-23 22:07:21 +00:00
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switch ((char) ch) {
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case 'a':
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if (type == 0) {
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type = ALL;
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rpcs |= DODUMP;
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} else
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usage();
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break;
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case 'd':
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if (type == 0) {
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type = DIRS;
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rpcs |= DODUMP;
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} else
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usage();
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break;
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case 'e':
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rpcs |= DOEXPORTS;
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break;
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case 'r':
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rpcs |= DOREMOVE;
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break;
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case 'A':
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rpcs |= DOREMALL;
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break;
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case 'v':
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rpcs |= DOVERIFY;
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break;
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case 'q':
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quiet = 1;
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break;
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case 'f':
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force = 1;
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break;
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case 'h':
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strncpy(thishost, optarg, sizeof(thishost));
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thishost[sizeof(thishost) - 1] = '\0';
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break;
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case '?':
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default:
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usage();
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}
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if (optind == argc)
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usage();
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if (rpcs == 0)
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rpcs = DODUMP;
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if (!*thishost) {
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struct hostent *he;
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if (gethostname(thishost, sizeof(thishost)) < 0) {
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perror("gethostname");
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exit(1);
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|
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}
|
1998-11-14 03:13:33 +00:00
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thishost[sizeof(thishost) - 1] = '\0';
|
1998-08-23 22:07:21 +00:00
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/*
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* We need the hostname as it appears to the other side's
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* mountd, so get our own hostname by reverse address
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* resolution.
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*/
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if (!(he = gethostbyname(thishost))) {
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fprintf(stderr, "gethostbyname failed on %s\n",
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thishost);
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exit(1);
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}
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memcpy(&thisaddr, he->h_addr, sizeof(thisaddr));
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|
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if (!(he = gethostbyaddr((char *) &thisaddr, sizeof(thisaddr),
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he->h_addrtype))) {
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fprintf(stderr, "gethostbyaddr failed on %s\n",
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inet_ntoa(thisaddr));
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|
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exit(1);
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}
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strncpy(thishost, he->h_name, sizeof(thishost));
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|
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thishost[sizeof(thishost) - 1] = '\0';
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|
|
} else {
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|
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thisaddr.s_addr = INADDR_NONE;
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|
|
}
|
|
|
|
|
|
|
|
if (!(auth = authunix_create_default())) {
|
|
|
|
fprintf(stderr, "couldn't create authentication handle\n");
|
|
|
|
exit(1);
|
|
|
|
}
|
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|
|
morethanone = (optind + 1 < argc);
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|
|
for (; optind < argc; optind++) {
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|
host = argv[optind];
|
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|
|
tv.tv_sec = CREATE_TIMEOUT;
|
|
|
|
tv.tv_usec = 0;
|
|
|
|
|
|
|
|
if (!(client = clnt_create_timeout(host, &tv)))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
client->cl_auth = auth;
|
|
|
|
tv.tv_sec = CALL_TIMEOUT;
|
|
|
|
tv.tv_usec = 0;
|
|
|
|
|
|
|
|
if (rpcs & (DODUMP | DOREMOVE | DOVERIFY))
|
|
|
|
if ((estat = clnt_call(client,
|
|
|
|
MOUNTPROC_DUMP,
|
|
|
|
(XDRPROC_T_TYPE) xdr_void,
|
|
|
|
(char *) 0,
|
|
|
|
(XDRPROC_T_TYPE) xdr_mountlist,
|
|
|
|
(char *) &mntdump,
|
|
|
|
tv)) != RPC_SUCCESS) {
|
|
|
|
fprintf(stderr, "%s: MOUNTPROC_DUMP: ", host);
|
|
|
|
clnt_perrno(estat);
|
|
|
|
fflush(stderr);
|
|
|
|
mntdump = NULL;
|
|
|
|
goto next;
|
|
|
|
}
|
|
|
|
if (rpcs & DOEXPORTS)
|
|
|
|
if ((estat = clnt_call(client,
|
|
|
|
MOUNTPROC_EXPORT,
|
|
|
|
(XDRPROC_T_TYPE) xdr_void,
|
|
|
|
(char *) 0,
|
|
|
|
(XDRPROC_T_TYPE) xdr_exports,
|
|
|
|
(char *) &mntexports,
|
|
|
|
tv)) != RPC_SUCCESS) {
|
|
|
|
fprintf(stderr, "%s: MOUNTPROC_EXPORT: ", host);
|
|
|
|
clnt_perrno(estat);
|
|
|
|
fflush(stderr);
|
|
|
|
mntexports = NULL;
|
|
|
|
goto next;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Now just print out the results */
|
|
|
|
if ((rpcs & (DODUMP | DOEXPORTS)) &&
|
|
|
|
morethanone) {
|
|
|
|
printf(">>> %s <<<\n", host);
|
|
|
|
fflush(stdout);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rpcs & DODUMP) {
|
|
|
|
print_dump(mntdump);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rpcs & DOEXPORTS) {
|
|
|
|
exp = mntexports;
|
|
|
|
while (exp) {
|
|
|
|
printf("%-35s", exp->ex_dir);
|
|
|
|
grp = exp->ex_groups;
|
|
|
|
if (grp == NULL) {
|
|
|
|
printf("Everyone\n");
|
|
|
|
} else {
|
|
|
|
while (grp) {
|
|
|
|
printf("%s ", grp->gr_name);
|
|
|
|
grp = grp->gr_next;
|
|
|
|
}
|
|
|
|
printf("\n");
|
|
|
|
}
|
|
|
|
exp = exp->ex_next;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rpcs & DOVERIFY)
|
|
|
|
fix_rmtab(client, host, mntdump, 0, force);
|
|
|
|
|
|
|
|
if (rpcs & DOREMOVE)
|
|
|
|
fix_rmtab(client, host, mntdump, 1, force);
|
|
|
|
|
|
|
|
if (rpcs & DOREMALL)
|
|
|
|
remove_all(client, host);
|
|
|
|
|
|
|
|
next:
|
|
|
|
if (mntdump)
|
|
|
|
(void) clnt_freeres(client,
|
|
|
|
(XDRPROC_T_TYPE) xdr_mountlist,
|
|
|
|
(char *) &mntdump);
|
|
|
|
if (mntexports)
|
|
|
|
(void) clnt_freeres(client,
|
|
|
|
(XDRPROC_T_TYPE) xdr_exports,
|
|
|
|
(char *) &mntexports);
|
|
|
|
|
|
|
|
clnt_destroy(client);
|
|
|
|
}
|
|
|
|
exit(0);
|
|
|
|
return 0; /* should never reach here */
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
RETSIGTYPE
|
|
|
|
create_timeout(int sig)
|
|
|
|
{
|
|
|
|
signal(SIGALRM, SIG_DFL);
|
|
|
|
longjmp(before_rpc, 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#ifndef HAVE_TRANSPORT_TYPE_TLI
|
|
|
|
/*
|
|
|
|
* inetresport 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)
|
|
|
|
{
|
|
|
|
int alport;
|
|
|
|
struct sockaddr_in addr;
|
|
|
|
int fd;
|
|
|
|
|
|
|
|
/* Use internet address family */
|
|
|
|
addr.sin_family = AF_INET;
|
|
|
|
addr.sin_addr.s_addr = INADDR_ANY;
|
|
|
|
if ((fd = 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(fd, (struct sockaddr *) &addr, sizeof(addr)) >= 0)
|
|
|
|
return fd;
|
|
|
|
if (errno != EADDRINUSE) {
|
|
|
|
close(fd);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
close(fd);
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
#endif /* not HAVE_TRANSPORT_TYPE_TLI */
|
|
|
|
|
|
|
|
|
|
|
|
static CLIENT *
|
|
|
|
clnt_create_timeout(char *host, struct timeval *tvp)
|
|
|
|
{
|
|
|
|
CLIENT *clnt;
|
|
|
|
struct sockaddr_in host_addr;
|
|
|
|
struct hostent *hp;
|
|
|
|
#ifndef HAVE_TRANSPORT_TYPE_TLI
|
|
|
|
int s;
|
|
|
|
#endif /* not HAVE_TRANSPORT_TYPE_TLI */
|
|
|
|
|
|
|
|
if (setjmp(before_rpc)) {
|
|
|
|
if (!quiet) {
|
|
|
|
fprintf(stderr, "%s: ", host);
|
|
|
|
clnt_perrno(RPC_TIMEDOUT);
|
|
|
|
fprintf(stderr, "\n");
|
|
|
|
fflush(stderr);
|
|
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
signal(SIGALRM, create_timeout);
|
|
|
|
ualarm(tvp->tv_sec * 1000000 + tvp->tv_usec, 0);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Get address of host
|
|
|
|
*/
|
|
|
|
if ((hp = gethostbyname(host)) == 0 && !STREQ(host, localhost)) {
|
|
|
|
fprintf(stderr, "can't get address of %s\n", host);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
memset(&host_addr, 0, sizeof host_addr);
|
|
|
|
host_addr.sin_family = AF_INET;
|
|
|
|
if (hp) {
|
|
|
|
memmove((voidp) &host_addr.sin_addr, (voidp) hp->h_addr,
|
|
|
|
sizeof(host_addr.sin_addr));
|
|
|
|
} else {
|
|
|
|
/* fake "localhost" */
|
|
|
|
host_addr.sin_addr.s_addr = htonl(0x7f000001);
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef HAVE_TRANSPORT_TYPE_TLI
|
|
|
|
/* try TCP first (in case return data is large), then UDP */
|
|
|
|
clnt = clnt_create(host, MOUNTPROG, MOUNTVERS, "tcp");
|
|
|
|
if (!clnt)
|
|
|
|
clnt = clnt_create(host, MOUNTPROG, MOUNTVERS, "udp");
|
|
|
|
#else /* not HAVE_TRANSPORT_TYPE_TLI */
|
|
|
|
s = RPC_ANYSOCK;
|
|
|
|
clnt = clnttcp_create(&host_addr, MOUNTPROG, MOUNTVERS, &s, 0, 0);
|
|
|
|
if (!clnt) {
|
|
|
|
/* XXX: do we need to close(s) ? */
|
|
|
|
s = privsock(SOCK_DGRAM);
|
|
|
|
clnt = clntudp_create(&host_addr, MOUNTPROG, MOUNTVERS, *tvp, &s);
|
|
|
|
}
|
|
|
|
#endif /* not HAVE_TRANSPORT_TYPE_TLI */
|
|
|
|
|
|
|
|
if (!clnt) {
|
|
|
|
ualarm(0, 0);
|
|
|
|
if (!quiet) {
|
|
|
|
clnt_pcreateerror(host);
|
|
|
|
fflush(stderr);
|
|
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
ualarm(0, 0);
|
|
|
|
return clnt;
|
|
|
|
}
|