Remove vestiges of previous autofs.
Discussed with: alfred@ MFC after: 2 weeks Sponsored by: The FreeBSD Foundation
This commit is contained in:
Edward Tomasz Napierala
parent
f09566d3bd
commit
a1577802f0
@ -1,18 +0,0 @@
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# $Id: Makefile,v 1.5 2004/09/08 08:27:12 bright Exp $
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# $FreeBSD$
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PROG= autodriver
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MAN=
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SRCS= autodriver.c
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WARNS?= 4
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CFLAGS+= -g
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BINDIR?= /sbin
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DPADD+= ${.OBJDIR}/../libautofs/libautofs.a
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#LDADD+= -lautofs
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LDADD+= ${.OBJDIR}/../libautofs/libautofs.a
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LDFLAGS+= -L${.OBJDIR}/../libautofs
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CFLAGS+= -I${.CURDIR}/../libautofs
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.include <bsd.prog.mk>
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@ -1,538 +0,0 @@
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/*
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* Copyright (c) 2004 Alfred Perlstein <alfred@FreeBSD.org>
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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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* $Id: autodriver.c,v 1.9 2004/09/08 08:12:21 bright Exp $
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* $FreeBSD$
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*/
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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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#include <fcntl.h>
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#include <sys/dirent.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <sys/poll.h>
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#include <sys/stat.h>
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#include <libautofs.h>
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struct autoentry {
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char *ae_mnt; /* autofs mountpoint. */
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char *ae_path; /* path under mount. */
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char *ae_type; /* fs to be mounted type. */
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char *ae_opts; /* options passed to mount. */
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char *ae_rpath; /* remote path */
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char *ae_free; /* freeme! */
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char *ae_fullpath; /* full path to mount */
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int ae_line; /* line it came from in the conf. */
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int ae_indirect; /* is this an indirect mount? */
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int ae_direct; /* is this a direct mount? */
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int ae_browse; /* browseable? */
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struct autoentry *ae_next; /* next. */
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};
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struct autoentry *entries;
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const char *mount_prog = "mount";
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const char *fstype = "autofs";
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void *xmalloc(size_t);
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void *xcalloc(size_t number, size_t size);
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void parsetab(void);
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void populate_tab(void);
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void doreq(autoh_t, autoreq_t);
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void dotheneedful(autoh_t);
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void eventloop(void);
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int poll_handles(autoh_t *array, int cnt);
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int mount_indirect(struct autofs_userreq *req, struct autoentry *ent);
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int mount_direct(struct autofs_userreq *req, struct autoentry *ent);
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int mount_browse(struct autofs_userreq *req, struct autoentry *ent);
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#define DSTR(s) sizeof(s) - 1, s
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struct dirent dumbents[] = {
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{50, sizeof(struct dirent), DT_DIR, DSTR("one") },
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{51, sizeof(struct dirent), DT_DIR, DSTR(".") },
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{52, sizeof(struct dirent), DT_DIR, DSTR("..") },
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{50, sizeof(struct dirent), DT_DIR, DSTR("two") },
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};
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void *
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xmalloc(size_t size)
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{
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void *ret;
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ret = malloc(size);
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if (ret == NULL)
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err(1, "malloc %d", (int) size);
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return (ret);
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}
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void *
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xcalloc(size_t number, size_t size)
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{
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void *ret;
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ret = calloc(number, size);
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if (ret == NULL)
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err(1, "calloc %d %d", (int)number, (int)size);
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return (ret);
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}
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void
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parsetab(void)
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{
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FILE *fp;
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const char *tab;
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char *cp, *p, *line, *opt;
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size_t len;
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struct autoentry *ent;
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int i, lineno, x, gotopt;
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const char *expecting = "expecting 'direct', 'indirect' or 'browse'";
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const char *tabfiles[] = {
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"/etc/autotab", "/usr/local/etc/autotab", "./autotab", NULL
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};
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lineno = 0;
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for (i = 0; (tab = tabfiles[i]) != NULL; i++) {
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tab = tabfiles[i];
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fp = fopen(tab, "r");
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if (fp == NULL)
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warn("fopen %s", tab);
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if (fp != NULL)
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break;
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}
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if (fp == NULL) {
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err(1, "no config file available.");
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}
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fprintf(stderr, "using config file: %s\n", tab);
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while ((cp = fgetln(fp, &len)) != NULL) {
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lineno++;
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while (len > 0 && isspace(cp[len - 1]))
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len--;
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line = xmalloc(len + 1);
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bcopy(cp, line, len);
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line[len] = '\0';
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cp = line;
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if ((cp = strchr(line, '#')) != NULL)
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*cp = '\0';
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cp = line;
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while (isspace(*cp))
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cp++;
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if (*cp == '\0') {
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free(line);
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continue;
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}
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ent = xcalloc(1, sizeof(*ent));
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if ((p = strsep(&cp, " \t")) == NULL)
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goto bad;
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ent->ae_mnt = p;
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if ((p = strsep(&cp, " \t")) == NULL)
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goto bad;
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ent->ae_path = p;
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if ((p = strsep(&cp, " \t")) == NULL)
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goto bad;
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ent->ae_type = p;
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if ((p = strsep(&cp, " \t")) == NULL)
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goto bad;
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ent->ae_opts = p;
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if ((p = strsep(&cp, " \t")) == NULL)
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goto bad;
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ent->ae_rpath = p;
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if ((p = strsep(&cp, " \t")) == NULL)
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goto bad;
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gotopt = 0;
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opt = p;
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while ((p = strsep(&opt, ",")) != NULL) {
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if (strcmp(p, "indirect") == 0) {
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ent->ae_indirect = 1;
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gotopt = 1;
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} else if (strcmp(p, "direct") == 0) {
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ent->ae_direct = 1;
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gotopt = 1;
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} else if (strcmp(p, "browse") == 0) {
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ent->ae_browse = 1;
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gotopt = 1;
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} else {
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warnx("unreconized option '%s', %s",
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p, expecting);
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goto bad2;
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}
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}
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if (!gotopt) {
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warnx("no options specified %s", expecting);
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goto bad2;
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}
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if (ent->ae_direct && ent->ae_indirect) {
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warnx("direct and indirect are mutually exclusive");
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goto bad2;
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}
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x = asprintf(&ent->ae_fullpath, "%s/%s",
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ent->ae_mnt, ent->ae_path);
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if (x == -1)
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err(1, "asprintf");
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if (strlen(ent->ae_fullpath) + 1 > PATH_MAX) {
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warnx("Error in file %s, line %d, "
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"mountpath (%s) exceeds PATH_MAX (%d)",
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tab, lineno, ent->ae_fullpath, PATH_MAX);
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goto bad2;
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}
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ent->ae_line = lineno;
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ent->ae_free = line;
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ent->ae_next = entries;
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entries = ent;
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continue;
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bad:
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warnx("Parse error in file %s, line %d", tab, lineno);
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bad2:
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free(ent->ae_fullpath);
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free(line);
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free(ent);
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}
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if (ferror(fp))
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err(1, "error with file %s", tab);
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}
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void
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populate_tab(void)
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{
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struct autoentry *ent;
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char *path, *cmd;
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int error;
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autoh_t ah;
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path = cmd = NULL;
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for (ent = entries; ent != NULL; ent = ent->ae_next) {
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free(path);
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free(cmd);
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error = asprintf(&path, "%s/%s", ent->ae_mnt, ent->ae_path);
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if (error == -1)
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err(1, "asprintf");
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error = asprintf(&cmd, "mkdir -p %s", path);
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if (error == -1)
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err(1, "asprintf");
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error = system(cmd);
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if (error) {
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warn("system: %s", cmd);
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continue;
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}
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if (autoh_get(ent->ae_mnt, &ah)) {
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warn("autoh_get %s", path);
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continue;
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}
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error = autoh_togglepath(ah, AUTO_MOUNTER, getpid(), path);
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if (error) {
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err(1, "AUTO_MOUNTER %s", path);
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continue;
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}
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if (ent->ae_browse) {
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error = autoh_togglepath(ah, AUTO_BROWSE, getpid(),
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path);
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if (error)
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err(1, "AUTO_BROWSE %s", path);
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}
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if (ent->ae_direct) {
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error = autoh_togglepath(ah, AUTO_DIRECT, getpid(),
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path);
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if (error)
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err(1, "AUTO_DIRECT %s", path);
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}
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if (ent->ae_indirect) {
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error = autoh_togglepath(ah, AUTO_INDIRECT, getpid(),
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path);
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if (error)
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err(1, "AUTO_INDIRECT %s", path);
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}
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autoh_free(ah);
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}
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free(path);
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free(cmd);
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}
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/*
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* Process an autofs request, scan the list of entries in the config
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* looking for our node, if found mount it.
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*/
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void
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doreq(autoh_t ah, autoreq_t req)
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{
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struct autoentry *ent;
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int error;
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int mcmp;
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int xid;
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const char *mnt;
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mnt = autoh_mp(ah);
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autoreq_seterrno(req, 0);
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for (ent = entries; ent != NULL; ent = ent->ae_next) {
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fprintf(stderr, "comparing {%s,%s} to {%s,%s}\n",
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mnt, ent->ae_mnt, autoreq_getpath(req), ent->ae_path);
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fprintf(stderr, "comparing {%d,%d} to {%d,%d}\n",
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(int)strlen(mnt),
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(int)strlen(ent->ae_mnt),
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(int)strlen(autoreq_getpath(req)),
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(int)strlen(ent->ae_path));
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autoreq_getxid(req, &xid);
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fprintf(stderr, "req xid %d\n", xid);
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if ((mcmp = strcmp(mnt, ent->ae_mnt)) != 0) {
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fprintf(stderr, "mcmp = %d\n", mcmp);
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continue;
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}
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if (mount_direct(req, ent))
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goto serve;
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if (mount_indirect(req, ent))
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goto serve;
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if (mount_browse(req, ent))
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goto serve;
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}
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fprintf(stderr, "no entry found...\n");
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autoreq_seterrno(req, ENOENT);
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serve:
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error = autoreq_serv(ah, req);
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if (error == -1) {
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warn("AUTOFS_CTL_SERVREQ");
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}
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}
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int
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mount_indirect(req, ent)
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struct autofs_userreq *req;
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struct autoentry *ent;
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{
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struct stat sb;
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char *path, *cmd;
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int error, x;
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if (ent->ae_indirect != 1) {
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fprintf(stderr, "not indirect.\n");
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return (0);
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}
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fprintf(stderr, "indirect mount...\n");
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/*
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* handle lookups, fake all stat(2) requests... this is bad,
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* but we're a driver so we don't care...
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* If we don't care about the type of request, then just return.
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*/
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switch (autoreq_getop(req)) {
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case AUTOREQ_OP_LOOKUP:
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break;
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case AUTOREQ_OP_STAT:
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fprintf(stderr, "stat\n");
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return (1);
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default:
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fprintf(stderr, "unknown\n");
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return (0);
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}
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if (stat(ent->ae_fullpath, &sb))
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return (0);
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if (sb.st_ino != autoreq_getdirino(req)) {
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fprintf(stderr, "st_ino %d != dirino %d\n",
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(int)sb.st_ino, (int)autoreq_getdirino(req));
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return (0);
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}
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x = asprintf(&path, "%s/%s", ent->ae_fullpath, autoreq_getpath(req));
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if (x > PATH_MAX) {
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autoreq_seterrno(req, ENAMETOOLONG);
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return (1);
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}
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if (mkdir(path, 0555) == -1)
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warn("mkdir %s", path);
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error = asprintf(&cmd, "%s -t %s -o %s %s/%s %s", mount_prog,
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ent->ae_type, ent->ae_opts, ent->ae_rpath, autoreq_getpath(req), path);
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fprintf(stderr, "running:\n\t%s\n", cmd);
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error = system(cmd);
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fprintf(stderr, "error = %d\n", error);
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free(cmd);
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if (error) {
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if (rmdir(path) == -1)
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warn("rmdir %s", path);
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autoreq_seterrno(req, ENOENT);
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} else {
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if (stat(path, &sb) != -1)
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autoreq_setino(req, sb.st_ino);
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/* XXX !!! */
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/* req->au_flags = 1; */
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}
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free(path);
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return (1);
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}
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int
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mount_direct(req, ent)
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struct autofs_userreq *req;
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struct autoentry *ent;
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{
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struct stat sb;
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char *cmd;
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int error;
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if (ent->ae_direct != 1) {
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fprintf(stderr, "not direct.\n");
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return (0);
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}
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fprintf(stderr, "direct mount...\n");
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/*
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* handle lookups, fake all stat(2) requests... this is bad,
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* but we're a driver so we don't care...
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* If we don't care about the type of request, then just return.
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*/
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switch (autoreq_getop(req)) {
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case AUTOREQ_OP_LOOKUP:
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break;
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case AUTOREQ_OP_STAT:
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return (1);
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default:
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return (0);
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}
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if (stat(ent->ae_fullpath, &sb))
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return (0);
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if (sb.st_ino != autoreq_getino(req))
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return (0);
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error = asprintf(&cmd, "%s -t %s -o %s %s %s", mount_prog,
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ent->ae_type, ent->ae_opts, ent->ae_rpath, ent->ae_fullpath);
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if (error == -1)
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err(1, "asprintf");
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fprintf(stderr, "running:\n\t%s\n", cmd);
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error = system(cmd);
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fprintf(stderr, "error = %d\n", error);
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free(cmd);
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if (error) {
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autoreq_seterrno(req, ENOENT);
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return (1);
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}
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/* XXX: fix ONLIST in kernel */
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/* req->au_flags = 1; */
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return (1);
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}
|
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|
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int
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mount_browse(req, ent)
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struct autofs_userreq *req;
|
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struct autoentry *ent;
|
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{
|
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off_t off;
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|
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if (ent->ae_browse != 1)
|
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return (0);
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if (autoreq_getop(req) != AUTOREQ_OP_READDIR)
|
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return (0);
|
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autoreq_getoffset(req, &off);
|
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if (off < sizeof(dumbents))
|
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autoreq_setaux(req, dumbents, sizeof(dumbents));
|
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fprintf(stderr, "mount_browse: offset %d, size %d\n",
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(int)off, (int)sizeof(dumbents));
|
||||
autoreq_seteof(req, 1);
|
||||
return (1);
|
||||
}
|
||||
|
||||
/*
|
||||
* Ask the filesystem passed in if it has a pending request.
|
||||
* if so process them.
|
||||
*/
|
||||
void
|
||||
dotheneedful(autoh_t ah)
|
||||
{
|
||||
int cnt, i;
|
||||
autoreq_t *reqs;
|
||||
|
||||
if (autoreq_get(ah, &reqs, &cnt))
|
||||
err(1, "autoreq_get");
|
||||
|
||||
for (i = 0; i < cnt; i++) {
|
||||
fprintf(stderr, "processing request for '%s' '%s'\n",
|
||||
autoh_mp(ah), autoreq_getpath(reqs[i]));
|
||||
doreq(ah, reqs[i]);
|
||||
}
|
||||
free(reqs);
|
||||
}
|
||||
|
||||
int
|
||||
poll_handles(autoh_t *array, int cnt)
|
||||
{
|
||||
int i, saved_errno, x;
|
||||
static struct pollfd *pfd = NULL;
|
||||
|
||||
pfd = reallocf(pfd, cnt * sizeof(*pfd));
|
||||
if (pfd == NULL)
|
||||
return (-1);
|
||||
for (i = 0; i < cnt; i++) {
|
||||
pfd[i].fd = autoh_fd(array[i]);
|
||||
pfd[i].events = POLLPRI;
|
||||
pfd[i].revents = 0;
|
||||
}
|
||||
fprintf(stderr, "start polling...\n");
|
||||
x = poll(pfd, cnt, 10000);
|
||||
saved_errno = errno;
|
||||
fprintf(stderr, "done polling...\n");
|
||||
errno = saved_errno;
|
||||
if (x == -1)
|
||||
return (-1);
|
||||
/* at least one fs is ready... */
|
||||
if (x > 0)
|
||||
return (0);
|
||||
return (0);
|
||||
}
|
||||
|
||||
void
|
||||
eventloop(void)
|
||||
{
|
||||
autoh_t *array;
|
||||
int cnt, i;
|
||||
|
||||
fprintf(stderr, "starting event loop...\n");
|
||||
for ( ;; ) {
|
||||
if (autoh_getall(&array, &cnt))
|
||||
err(1, "autoh_getall");
|
||||
if (poll_handles(array, cnt))
|
||||
err(1, "poll_handles");
|
||||
for (i = 0; i < cnt; i++) {
|
||||
dotheneedful(array[i]);
|
||||
}
|
||||
autoh_freeall(array);
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
main(int argc __unused, char **argv __unused)
|
||||
{
|
||||
|
||||
if (getuid() != 0)
|
||||
errx(1, "autodriver needs to be run as root to work.");
|
||||
parsetab();
|
||||
populate_tab();
|
||||
eventloop();
|
||||
return (0);
|
||||
}
|
||||
@ -1,7 +0,0 @@
|
||||
# $Id: autotab,v 1.8 2004/09/08 08:12:21 bright Exp $
|
||||
# $FreeBSD$
|
||||
# autofs, directory, fstype, opts, path
|
||||
/auto share nfs ro,-R=1 big:/vol/share direct
|
||||
#/auto src nfs ro,-R=1 big:/vol/share/src indirect
|
||||
/auto src nfs ro,-R=1 big:/vol/share/src direct
|
||||
/auto browse nfs ro,-R=1 big:/vol/share/src browse,indirect
|
||||
Loading…
Reference in New Issue
Block a user