diff options
Diffstat (limited to 'share/examples')
-rw-r--r-- | share/examples/autofs/driver/Makefile | 18 | ||||
-rw-r--r-- | share/examples/autofs/driver/autodriver.c | 538 | ||||
-rw-r--r-- | share/examples/autofs/driver/autotab | 7 |
3 files changed, 0 insertions, 563 deletions
diff --git a/share/examples/autofs/driver/Makefile b/share/examples/autofs/driver/Makefile deleted file mode 100644 index d577668..0000000 --- a/share/examples/autofs/driver/Makefile +++ /dev/null @@ -1,18 +0,0 @@ -# $Id: Makefile,v 1.5 2004/09/08 08:27:12 bright Exp $ -# $FreeBSD$ - -PROG= autodriver -NO_MAN= - -SRCS= autodriver.c -WARNS?= 4 -CFLAGS+= -g -BINDIR?= /sbin - -DPADD+= ${.OBJDIR}/../libautofs/libautofs.a -#LDADD+= -lautofs -LDADD+= ${.OBJDIR}/../libautofs/libautofs.a -LDFLAGS+= -L${.OBJDIR}/../libautofs -CFLAGS+= -I${.CURDIR}/../libautofs - -.include <bsd.prog.mk> diff --git a/share/examples/autofs/driver/autodriver.c b/share/examples/autofs/driver/autodriver.c deleted file mode 100644 index 69af0c5..0000000 --- a/share/examples/autofs/driver/autodriver.c +++ /dev/null @@ -1,538 +0,0 @@ -/* - * Copyright (c) 2004 Alfred Perlstein <alfred@FreeBSD.org> - * 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. - * - * $Id: autodriver.c,v 1.9 2004/09/08 08:12:21 bright Exp $ - * $FreeBSD$ - */ -#include <ctype.h> -#include <err.h> -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <fcntl.h> - -#include <sys/dirent.h> -#include <sys/types.h> -#include <sys/param.h> -#include <sys/mount.h> -#include <sys/poll.h> -#include <sys/stat.h> - -#include <libautofs.h> - -struct autoentry { - char *ae_mnt; /* autofs mountpoint. */ - char *ae_path; /* path under mount. */ - char *ae_type; /* fs to be mounted type. */ - char *ae_opts; /* options passed to mount. */ - char *ae_rpath; /* remote path */ - char *ae_free; /* freeme! */ - char *ae_fullpath; /* full path to mount */ - int ae_line; /* line it came from in the conf. */ - int ae_indirect; /* is this an indirect mount? */ - int ae_direct; /* is this a direct mount? */ - int ae_browse; /* browseable? */ - struct autoentry *ae_next; /* next. */ -}; - -struct autoentry *entries; -const char *mount_prog = "mount"; -const char *fstype = "autofs"; - -void *xmalloc(size_t); -void *xcalloc(size_t number, size_t size); -void parsetab(void); -void populate_tab(void); -void doreq(autoh_t, autoreq_t); -void dotheneedful(autoh_t); -void eventloop(void); -int poll_handles(autoh_t *array, int cnt); -int mount_indirect(struct autofs_userreq *req, struct autoentry *ent); -int mount_direct(struct autofs_userreq *req, struct autoentry *ent); -int mount_browse(struct autofs_userreq *req, struct autoentry *ent); - -#define DSTR(s) sizeof(s) - 1, s - -struct dirent dumbents[] = { - {50, sizeof(struct dirent), DT_DIR, DSTR("one") }, - {51, sizeof(struct dirent), DT_DIR, DSTR(".") }, - {52, sizeof(struct dirent), DT_DIR, DSTR("..") }, - {50, sizeof(struct dirent), DT_DIR, DSTR("two") }, -}; - -void * -xmalloc(size_t size) -{ - void *ret; - - ret = malloc(size); - if (ret == NULL) - err(1, "malloc %d", (int) size); - return (ret); -} - -void * -xcalloc(size_t number, size_t size) -{ - void *ret; - - ret = calloc(number, size); - if (ret == NULL) - err(1, "calloc %d %d", (int)number, (int)size); - return (ret); -} - -void -parsetab(void) -{ - FILE *fp; - const char *tab; - char *cp, *p, *line, *opt; - size_t len; - struct autoentry *ent; - int i, lineno, x, gotopt; - const char *expecting = "expecting 'direct', 'indirect' or 'browse'"; - const char *tabfiles[] = { - "/etc/autotab", "/usr/local/etc/autotab", "./autotab", NULL - }; - - lineno = 0; - for (i = 0; (tab = tabfiles[i]) != NULL; i++) { - tab = tabfiles[i]; - fp = fopen(tab, "r"); - if (fp == NULL) - warn("fopen %s", tab); - if (fp != NULL) - break; - } - if (fp == NULL) { - err(1, "no config file available."); - } - - fprintf(stderr, "using config file: %s\n", tab); - - while ((cp = fgetln(fp, &len)) != NULL) { - lineno++; - while (len > 0 && isspace(cp[len - 1])) - len--; - line = xmalloc(len + 1); - bcopy(cp, line, len); - line[len] = '\0'; - cp = line; - if ((cp = strchr(line, '#')) != NULL) - *cp = '\0'; - cp = line; - while (isspace(*cp)) - cp++; - if (*cp == '\0') { - free(line); - continue; - } - ent = xcalloc(1, sizeof(*ent)); - if ((p = strsep(&cp, " \t")) == NULL) - goto bad; - ent->ae_mnt = p; - if ((p = strsep(&cp, " \t")) == NULL) - goto bad; - ent->ae_path = p; - if ((p = strsep(&cp, " \t")) == NULL) - goto bad; - ent->ae_type = p; - if ((p = strsep(&cp, " \t")) == NULL) - goto bad; - ent->ae_opts = p; - if ((p = strsep(&cp, " \t")) == NULL) - goto bad; - ent->ae_rpath = p; - if ((p = strsep(&cp, " \t")) == NULL) - goto bad; - gotopt = 0; - opt = p; - while ((p = strsep(&opt, ",")) != NULL) { - if (strcmp(p, "indirect") == 0) { - ent->ae_indirect = 1; - gotopt = 1; - } else if (strcmp(p, "direct") == 0) { - ent->ae_direct = 1; - gotopt = 1; - } else if (strcmp(p, "browse") == 0) { - ent->ae_browse = 1; - gotopt = 1; - } else { - warnx("unreconized option '%s', %s", - p, expecting); - goto bad2; - } - } - if (!gotopt) { - warnx("no options specified %s", expecting); - goto bad2; - } - if (ent->ae_direct && ent->ae_indirect) { - warnx("direct and indirect are mutually exclusive"); - goto bad2; - - } - x = asprintf(&ent->ae_fullpath, "%s/%s", - ent->ae_mnt, ent->ae_path); - if (x == -1) - err(1, "asprintf"); - - if (strlen(ent->ae_fullpath) + 1 > PATH_MAX) { - warnx("Error in file %s, line %d, " - "mountpath (%s) exceeds PATH_MAX (%d)", - tab, lineno, ent->ae_fullpath, PATH_MAX); - goto bad2; - } - ent->ae_line = lineno; - ent->ae_free = line; - ent->ae_next = entries; - entries = ent; - continue; -bad: - warnx("Parse error in file %s, line %d", tab, lineno); -bad2: - free(ent->ae_fullpath); - free(line); - free(ent); - } - if (ferror(fp)) - err(1, "error with file %s", tab); -} - -void -populate_tab(void) -{ - struct autoentry *ent; - char *path, *cmd; - int error; - autoh_t ah; - - path = cmd = NULL; - - for (ent = entries; ent != NULL; ent = ent->ae_next) { - free(path); - free(cmd); - error = asprintf(&path, "%s/%s", ent->ae_mnt, ent->ae_path); - if (error == -1) - err(1, "asprintf"); - error = asprintf(&cmd, "mkdir -p %s", path); - if (error == -1) - err(1, "asprintf"); - error = system(cmd); - if (error) { - warn("system: %s", cmd); - continue; - } - if (autoh_get(ent->ae_mnt, &ah)) { - warn("autoh_get %s", path); - continue; - } - error = autoh_togglepath(ah, AUTO_MOUNTER, getpid(), path); - if (error) { - err(1, "AUTO_MOUNTER %s", path); - continue; - } - if (ent->ae_browse) { - error = autoh_togglepath(ah, AUTO_BROWSE, getpid(), - path); - if (error) - err(1, "AUTO_BROWSE %s", path); - } - if (ent->ae_direct) { - error = autoh_togglepath(ah, AUTO_DIRECT, getpid(), - path); - if (error) - err(1, "AUTO_DIRECT %s", path); - } - if (ent->ae_indirect) { - error = autoh_togglepath(ah, AUTO_INDIRECT, getpid(), - path); - if (error) - err(1, "AUTO_INDIRECT %s", path); - } - autoh_free(ah); - } - free(path); - free(cmd); -} - -/* - * Process an autofs request, scan the list of entries in the config - * looking for our node, if found mount it. - */ -void -doreq(autoh_t ah, autoreq_t req) -{ - struct autoentry *ent; - int error; - int mcmp; - int xid; - const char *mnt; - - mnt = autoh_mp(ah); - - autoreq_seterrno(req, 0); - for (ent = entries; ent != NULL; ent = ent->ae_next) { - fprintf(stderr, "comparing {%s,%s} to {%s,%s}\n", - mnt, ent->ae_mnt, autoreq_getpath(req), ent->ae_path); - fprintf(stderr, "comparing {%d,%d} to {%d,%d}\n", - (int)strlen(mnt), - (int)strlen(ent->ae_mnt), - (int)strlen(autoreq_getpath(req)), - (int)strlen(ent->ae_path)); - autoreq_getxid(req, &xid); - fprintf(stderr, "req xid %d\n", xid); - if ((mcmp = strcmp(mnt, ent->ae_mnt)) != 0) { - fprintf(stderr, "mcmp = %d\n", mcmp); - continue; - } - if (mount_direct(req, ent)) - goto serve; - if (mount_indirect(req, ent)) - goto serve; - if (mount_browse(req, ent)) - goto serve; - } - fprintf(stderr, "no entry found...\n"); - autoreq_seterrno(req, ENOENT); -serve: - error = autoreq_serv(ah, req); - if (error == -1) { - warn("AUTOFS_CTL_SERVREQ"); - } -} - -int -mount_indirect(req, ent) - struct autofs_userreq *req; - struct autoentry *ent; -{ - struct stat sb; - char *path, *cmd; - int error, x; - - if (ent->ae_indirect != 1) { - fprintf(stderr, "not indirect.\n"); - return (0); - } - fprintf(stderr, "indirect mount...\n"); - /* - * handle lookups, fake all stat(2) requests... this is bad, - * but we're a driver so we don't care... - * If we don't care about the type of request, then just return. - */ - switch (autoreq_getop(req)) { - case AUTOREQ_OP_LOOKUP: - break; - case AUTOREQ_OP_STAT: - fprintf(stderr, "stat\n"); - return (1); - default: - fprintf(stderr, "unknown\n"); - return (0); - } - if (stat(ent->ae_fullpath, &sb)) - return (0); - if (sb.st_ino != autoreq_getdirino(req)) { - fprintf(stderr, "st_ino %d != dirino %d\n", - (int)sb.st_ino, (int)autoreq_getdirino(req)); - return (0); - } - x = asprintf(&path, "%s/%s", ent->ae_fullpath, autoreq_getpath(req)); - if (x > PATH_MAX) { - autoreq_seterrno(req, ENAMETOOLONG); - return (1); - } - if (mkdir(path, 0555) == -1) - warn("mkdir %s", path); - error = asprintf(&cmd, "%s -t %s -o %s %s/%s %s", mount_prog, - ent->ae_type, ent->ae_opts, ent->ae_rpath, autoreq_getpath(req), path); - fprintf(stderr, "running:\n\t%s\n", cmd); - error = system(cmd); - fprintf(stderr, "error = %d\n", error); - free(cmd); - if (error) { - if (rmdir(path) == -1) - warn("rmdir %s", path); - autoreq_seterrno(req, ENOENT); - } else { - if (stat(path, &sb) != -1) - autoreq_setino(req, sb.st_ino); - /* XXX !!! */ - /* req->au_flags = 1; */ - } - free(path); - return (1); -} - -int -mount_direct(req, ent) - struct autofs_userreq *req; - struct autoentry *ent; -{ - struct stat sb; - char *cmd; - int error; - - if (ent->ae_direct != 1) { - fprintf(stderr, "not direct.\n"); - return (0); - } - fprintf(stderr, "direct mount...\n"); - /* - * handle lookups, fake all stat(2) requests... this is bad, - * but we're a driver so we don't care... - * If we don't care about the type of request, then just return. - */ - switch (autoreq_getop(req)) { - case AUTOREQ_OP_LOOKUP: - break; - case AUTOREQ_OP_STAT: - return (1); - default: - return (0); - } - if (stat(ent->ae_fullpath, &sb)) - return (0); - if (sb.st_ino != autoreq_getino(req)) - return (0); - error = asprintf(&cmd, "%s -t %s -o %s %s %s", mount_prog, - ent->ae_type, ent->ae_opts, ent->ae_rpath, ent->ae_fullpath); - if (error == -1) - err(1, "asprintf"); - fprintf(stderr, "running:\n\t%s\n", cmd); - error = system(cmd); - fprintf(stderr, "error = %d\n", error); - free(cmd); - if (error) { - autoreq_seterrno(req, ENOENT); - return (1); - } - /* XXX: fix ONLIST in kernel */ - /* req->au_flags = 1; */ - return (1); -} - -int -mount_browse(req, ent) - struct autofs_userreq *req; - struct autoentry *ent; -{ - off_t off; - - if (ent->ae_browse != 1) - return (0); - if (autoreq_getop(req) != AUTOREQ_OP_READDIR) - return (0); - autoreq_getoffset(req, &off); - if (off < sizeof(dumbents)) - autoreq_setaux(req, dumbents, sizeof(dumbents)); - fprintf(stderr, "mount_browse: offset %d, size %d\n", - (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); -} diff --git a/share/examples/autofs/driver/autotab b/share/examples/autofs/driver/autotab deleted file mode 100644 index c56e072..0000000 --- a/share/examples/autofs/driver/autotab +++ /dev/null @@ -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 |