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-rw-r--r--conf/autofs/autofs_solaris_v2_v3.c1292
1 files changed, 1292 insertions, 0 deletions
diff --git a/conf/autofs/autofs_solaris_v2_v3.c b/conf/autofs/autofs_solaris_v2_v3.c
new file mode 100644
index 000000000000..f3b653e7ea90
--- /dev/null
+++ b/conf/autofs/autofs_solaris_v2_v3.c
@@ -0,0 +1,1292 @@
+/*
+ * Copyright (c) 1999-2003 Ion Badulescu
+ * Copyright (c) 1997-2014 Erez Zadok
+ * Copyright (c) 1990 Jan-Simon Pendry
+ * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
+ * Copyright (c) 1990 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.
+ *
+ *
+ * File: am-utils/conf/autofs/autofs_solaris_v2_v3.c
+ *
+ */
+
+/*
+ * Automounter filesystem
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif /* HAVE_CONFIG_H */
+#include <am_defs.h>
+#include <amd.h>
+
+/*
+ * MACROS:
+ */
+#ifndef AUTOFS_NULL
+# define AUTOFS_NULL NULLPROC
+#endif /* not AUTOFS_NULL */
+
+/*
+ * STRUCTURES:
+ */
+
+struct amd_rddirres {
+ enum autofs_res rd_status;
+ u_long rd_bufsize;
+ nfsdirlist rd_dl;
+};
+typedef struct amd_rddirres amd_rddirres;
+
+/*
+ * VARIABLES:
+ */
+
+SVCXPRT *autofs_xprt = NULL;
+
+/* forward declarations */
+bool_t xdr_umntrequest(XDR *xdrs, umntrequest *objp);
+bool_t xdr_umntres(XDR *xdrs, umntres *objp);
+bool_t xdr_autofs_lookupargs(XDR *xdrs, autofs_lookupargs *objp);
+bool_t xdr_autofs_mountres(XDR *xdrs, autofs_mountres *objp);
+bool_t xdr_autofs_lookupres(XDR *xdrs, autofs_lookupres *objp);
+bool_t xdr_autofs_rddirargs(XDR *xdrs, autofs_rddirargs *objp);
+static bool_t xdr_amd_rddirres(XDR *xdrs, amd_rddirres *objp);
+
+/*
+ * These exist only in the AutoFS V2 protocol.
+ */
+#ifdef AUTOFS_POSTUNMOUNT
+bool_t xdr_postumntreq(XDR *xdrs, postumntreq *objp);
+bool_t xdr_postumntres(XDR *xdrs, postumntres *objp);
+bool_t xdr_postmountreq(XDR *xdrs, postmountreq *objp);
+bool_t xdr_postmountres(XDR *xdrs, postmountres *objp);
+#endif /* AUTOFS_POSTUMOUNT */
+
+/*
+ * AUTOFS XDR FUNCTIONS:
+ */
+
+bool_t
+xdr_autofs_stat(XDR *xdrs, autofs_stat *objp)
+{
+ if (!xdr_enum(xdrs, (enum_t *)objp))
+ return (FALSE);
+ return (TRUE);
+}
+
+
+bool_t
+xdr_autofs_action(XDR *xdrs, autofs_action *objp)
+{
+ if (!xdr_enum(xdrs, (enum_t *)objp))
+ return (FALSE);
+ return (TRUE);
+}
+
+
+bool_t
+xdr_linka(XDR *xdrs, linka *objp)
+{
+ if (!xdr_string(xdrs, &objp->dir, AUTOFS_MAXPATHLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->link, AUTOFS_MAXPATHLEN))
+ return (FALSE);
+ return (TRUE);
+}
+
+
+bool_t
+xdr_autofs_netbuf(XDR *xdrs, struct netbuf *objp)
+{
+ bool_t dummy;
+
+ if (!xdr_u_long(xdrs, (u_long *) &objp->maxlen))
+ return (FALSE);
+ dummy = xdr_bytes(xdrs, (char **)&(objp->buf),
+ (u_int *)&(objp->len), objp->maxlen);
+ return (dummy);
+}
+
+
+bool_t
+xdr_autofs_args(XDR *xdrs, autofs_args *objp)
+{
+ if (!xdr_autofs_netbuf(xdrs, &objp->addr))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->path, AUTOFS_MAXPATHLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->opts, AUTOFS_MAXOPTSLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->map, AUTOFS_MAXPATHLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->subdir, AUTOFS_MAXPATHLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->key, AUTOFS_MAXCOMPONENTLEN))
+ return (FALSE);
+ if (!xdr_int(xdrs, &objp->mount_to))
+ return (FALSE);
+ if (!xdr_int(xdrs, &objp->rpc_to))
+ return (FALSE);
+ if (!xdr_int(xdrs, &objp->direct))
+ return (FALSE);
+ return (TRUE);
+}
+
+
+bool_t
+xdr_mounta(XDR *xdrs, struct mounta *objp)
+{
+ if (!xdr_string(xdrs, &objp->spec, AUTOFS_MAXPATHLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->dir, AUTOFS_MAXPATHLEN))
+ return (FALSE);
+ if (!xdr_int(xdrs, &objp->flags))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->fstype, AUTOFS_MAXCOMPONENTLEN))
+ return (FALSE);
+ if (!xdr_pointer(xdrs, (char **)&objp->dataptr, sizeof(autofs_args),
+ (XDRPROC_T_TYPE) xdr_autofs_args))
+ return (FALSE);
+ if (!xdr_int(xdrs, &objp->datalen))
+ return (FALSE);
+ return (TRUE);
+}
+
+
+bool_t
+xdr_action_list_entry(XDR *xdrs, action_list_entry *objp)
+{
+ if (!xdr_autofs_action(xdrs, &objp->action))
+ return (FALSE);
+ switch (objp->action) {
+ case AUTOFS_MOUNT_RQ:
+ if (!xdr_mounta(xdrs, &objp->action_list_entry_u.mounta))
+ return (FALSE);
+ break;
+ case AUTOFS_LINK_RQ:
+ if (!xdr_linka(xdrs, &objp->action_list_entry_u.linka))
+ return (FALSE);
+ break;
+ default:
+ break;
+ }
+ return (TRUE);
+}
+
+
+bool_t
+xdr_action_list(XDR *xdrs, action_list *objp)
+{
+ if (!xdr_action_list_entry(xdrs, &objp->action))
+ return (FALSE);
+ if (!xdr_pointer(xdrs, (char **)&objp->next, sizeof(action_list),
+ (XDRPROC_T_TYPE) xdr_action_list))
+ return (FALSE);
+ return (TRUE);
+}
+
+
+bool_t
+xdr_umntrequest(XDR *xdrs, umntrequest *objp)
+{
+ if (amuDebug(D_XDRTRACE))
+ plog(XLOG_DEBUG, "xdr_umntrequest:");
+
+ if (!xdr_bool_t(xdrs, &objp->isdirect))
+ return (FALSE);
+#ifdef HAVE_STRUCT_UMNTREQUEST_DEVID
+ if (!xdr_dev_t(xdrs, &objp->devid))
+ return (FALSE);
+ if (!xdr_dev_t(xdrs, &objp->rdevid))
+ return (FALSE);
+#else /* not HAVE_STRUCT_UMNTREQUEST_DEVID */
+ if (!xdr_string(xdrs, &objp->mntresource, AUTOFS_MAXPATHLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->mntpnt, AUTOFS_MAXPATHLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->fstype, AUTOFS_MAXCOMPONENTLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->mntopts, AUTOFS_MAXOPTSLEN))
+ return (FALSE);
+#endif /* not HAVE_STRUCT_UMNTREQUEST_DEVID */
+ if (!xdr_pointer(xdrs, (char **) &objp->next, sizeof(umntrequest),
+ (XDRPROC_T_TYPE) xdr_umntrequest))
+ return (FALSE);
+
+ return (TRUE);
+}
+
+
+bool_t
+xdr_umntres(XDR *xdrs, umntres *objp)
+{
+ if (amuDebug(D_XDRTRACE))
+ plog(XLOG_DEBUG, "xdr_mntres:");
+
+ if (!xdr_int(xdrs, &objp->status))
+ return (FALSE);
+ return (TRUE);
+}
+
+
+/*
+ * These exist only in the AutoFS V2 protocol.
+ */
+#ifdef AUTOFS_POSTUNMOUNT
+bool_t
+xdr_postumntreq(XDR *xdrs, postumntreq *objp)
+{
+ if (!xdr_dev_t(xdrs, &objp->devid))
+ return (FALSE);
+ if (!xdr_dev_t(xdrs, &objp->rdevid))
+ return (FALSE);
+ if (!xdr_pointer(xdrs, (char **)&objp->next,
+ sizeof(struct postumntreq),
+ (XDRPROC_T_TYPE) xdr_postumntreq))
+ return (FALSE);
+ return (TRUE);
+}
+
+
+bool_t
+xdr_postumntres(XDR *xdrs, postumntres *objp)
+{
+ if (!xdr_int(xdrs, &objp->status))
+ return (FALSE);
+ return (TRUE);
+}
+
+
+bool_t
+xdr_postmountreq(XDR *xdrs, postmountreq *objp)
+{
+ if (!xdr_string(xdrs, &objp->special, AUTOFS_MAXPATHLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->mountp, AUTOFS_MAXPATHLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->fstype, AUTOFS_MAXCOMPONENTLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->mntopts, AUTOFS_MAXOPTSLEN))
+ return (FALSE);
+ if (!xdr_dev_t(xdrs, &objp->devid))
+ return (FALSE);
+ return (TRUE);
+}
+
+
+bool_t
+xdr_postmountres(XDR *xdrs, postmountres *objp)
+{
+ if (!xdr_int(xdrs, &objp->status))
+ return (FALSE);
+ return (TRUE);
+}
+#endif /* AUTOFS_POSTUNMOUNT */
+
+
+bool_t
+xdr_autofs_res(XDR *xdrs, autofs_res *objp)
+{
+ if (!xdr_enum(xdrs, (enum_t *)objp))
+ return (FALSE);
+ return (TRUE);
+}
+
+
+bool_t
+xdr_autofs_lookupargs(XDR *xdrs, autofs_lookupargs *objp)
+{
+ if (amuDebug(D_XDRTRACE))
+ plog(XLOG_DEBUG, "xdr_autofs_lookupargs:");
+
+ if (!xdr_string(xdrs, &objp->map, AUTOFS_MAXPATHLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->path, AUTOFS_MAXPATHLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->name, AUTOFS_MAXCOMPONENTLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->subdir, AUTOFS_MAXPATHLEN))
+ return (FALSE);
+ if (!xdr_string(xdrs, &objp->opts, AUTOFS_MAXOPTSLEN))
+ return (FALSE);
+ if (!xdr_bool_t(xdrs, &objp->isdirect))
+ return (FALSE);
+ return (TRUE);
+}
+
+
+bool_t
+xdr_mount_result_type(XDR *xdrs, mount_result_type *objp)
+{
+ if (!xdr_autofs_stat(xdrs, &objp->status))
+ return (FALSE);
+ switch (objp->status) {
+ case AUTOFS_ACTION:
+ if (!xdr_pointer(xdrs,
+ (char **)&objp->mount_result_type_u.list,
+ sizeof(action_list), (XDRPROC_T_TYPE) xdr_action_list))
+ return (FALSE);
+ break;
+ case AUTOFS_DONE:
+ if (!xdr_int(xdrs, &objp->mount_result_type_u.error))
+ return (FALSE);
+ break;
+ }
+ return (TRUE);
+}
+
+
+bool_t
+xdr_autofs_mountres(XDR *xdrs, autofs_mountres *objp)
+{
+ if (amuDebug(D_XDRTRACE))
+ plog(XLOG_DEBUG, "xdr_mntres:");
+
+ if (!xdr_mount_result_type(xdrs, &objp->mr_type))
+ return (FALSE);
+ if (!xdr_int(xdrs, &objp->mr_verbose))
+ return (FALSE);
+
+ return (TRUE);
+}
+
+
+bool_t
+xdr_lookup_result_type(XDR *xdrs, lookup_result_type *objp)
+{
+ if (!xdr_autofs_action(xdrs, &objp->action))
+ return (FALSE);
+ switch (objp->action) {
+ case AUTOFS_LINK_RQ:
+ if (!xdr_linka(xdrs, &objp->lookup_result_type_u.lt_linka))
+ return (FALSE);
+ break;
+ default:
+ break;
+ }
+ return (TRUE);
+}
+
+
+bool_t
+xdr_autofs_lookupres(XDR *xdrs, autofs_lookupres *objp)
+{
+ if (!xdr_autofs_res(xdrs, &objp->lu_res))
+ return (FALSE);
+ if (!xdr_lookup_result_type(xdrs, &objp->lu_type))
+ return (FALSE);
+ if (!xdr_int(xdrs, &objp->lu_verbose))
+ return (FALSE);
+ return (TRUE);
+}
+
+
+bool_t
+xdr_autofs_rddirargs(XDR *xdrs, autofs_rddirargs *objp)
+{
+ if (!xdr_string(xdrs, &objp->rda_map, AUTOFS_MAXPATHLEN))
+ return (FALSE);
+ if (!xdr_u_int(xdrs, (u_int *) &objp->rda_offset))
+ return (FALSE);
+ if (!xdr_u_int(xdrs, (u_int *) &objp->rda_count))
+ return (FALSE);
+ return (TRUE);
+}
+
+
+/*
+ * ENCODE ONLY
+ *
+ * Solaris automountd uses struct autofsrddir to pass the results.
+ * We use the traditional nfsreaddirres and do the conversion ourselves.
+ */
+static bool_t
+xdr_amd_putrddirres(XDR *xdrs, nfsdirlist *dp, ulong reqsize)
+{
+ nfsentry *ep;
+ char *name;
+ u_int namlen;
+ bool_t true = TRUE;
+ bool_t false = FALSE;
+ int entrysz;
+ int tofit;
+ int bufsize;
+ u_long ino, off;
+
+ bufsize = 1 * BYTES_PER_XDR_UNIT;
+ for (ep = dp->dl_entries; ep; ep = ep->ne_nextentry) {
+ name = ep->ne_name;
+ namlen = strlen(name);
+ ino = (u_long) ep->ne_fileid;
+ off = (u_long) ep->ne_cookie + AUTOFS_DAEMONCOOKIE;
+ entrysz = (1 + 1 + 1 + 1) * BYTES_PER_XDR_UNIT +
+ roundup(namlen, BYTES_PER_XDR_UNIT);
+ tofit = entrysz + 2 * BYTES_PER_XDR_UNIT;
+ if (bufsize + tofit > reqsize) {
+ dp->dl_eof = FALSE;
+ break;
+ }
+ if (!xdr_bool(xdrs, &true) ||
+ !xdr_u_long(xdrs, &ino) ||
+ !xdr_bytes(xdrs, &name, &namlen, AUTOFS_MAXPATHLEN) ||
+ !xdr_u_long(xdrs, &off)) {
+ return (FALSE);
+ }
+ bufsize += entrysz;
+ }
+ if (!xdr_bool(xdrs, &false)) {
+ return (FALSE);
+ }
+ if (!xdr_bool(xdrs, &dp->dl_eof)) {
+ return (FALSE);
+ }
+ return (TRUE);
+}
+
+
+static bool_t
+xdr_amd_rddirres(XDR *xdrs, amd_rddirres *objp)
+{
+ if (!xdr_enum(xdrs, (enum_t *)&objp->rd_status))
+ return (FALSE);
+ if (objp->rd_status != AUTOFS_OK)
+ return (TRUE);
+ return (xdr_amd_putrddirres(xdrs, &objp->rd_dl, objp->rd_bufsize));
+}
+
+
+/*
+ * AUTOFS RPC methods
+ */
+
+static int
+autofs_lookup_2_req(autofs_lookupargs *m,
+ autofs_lookupres *res,
+ struct authunix_parms *cred,
+ SVCXPRT *transp)
+{
+ int err;
+ am_node *mp, *new_mp;
+ mntfs *mf;
+
+ dlog("LOOKUP REQUEST: name=%s[%s] map=%s opts=%s path=%s direct=%d",
+ m->name, m->subdir, m->map, m->opts,
+ m->path, m->isdirect);
+
+ /* find the effective uid/gid from RPC request */
+ xsnprintf(opt_uid, sizeof(uid_str), "%d", (int) cred->aup_uid);
+ xsnprintf(opt_gid, sizeof(gid_str), "%d", (int) cred->aup_gid);
+
+ mp = find_ap(m->path);
+ if (!mp) {
+ plog(XLOG_ERROR, "map %s not found", m->path);
+ err = AUTOFS_NOENT;
+ goto out;
+ }
+
+ mf = mp->am_al->al_mnt;
+ new_mp = mf->mf_ops->lookup_child(mp, m->name, &err, VLOOK_LOOKUP);
+ if (!new_mp) {
+ err = AUTOFS_NOENT;
+ goto out;
+ }
+
+ if (err == 0) {
+ plog(XLOG_ERROR, "autofs requests to mount an already mounted node???");
+ } else {
+ free_map(new_mp);
+ }
+ err = AUTOFS_OK;
+ res->lu_type.action = AUTOFS_NONE;
+
+ out:
+ res->lu_res = err;
+ res->lu_verbose = 1;
+
+ dlog("LOOKUP REPLY: status=%d", res->lu_res);
+ return 0;
+}
+
+
+static void
+autofs_lookup_2_free(autofs_lookupres *res)
+{
+ struct linka link;
+
+ if ((res->lu_res == AUTOFS_OK) &&
+ (res->lu_type.action == AUTOFS_LINK_RQ)) {
+ /*
+ * Free link information
+ */
+ link = res->lu_type.lookup_result_type_u.lt_linka;
+ if (link.dir)
+ XFREE(link.dir);
+ if (link.link)
+ XFREE(link.link);
+ }
+}
+
+
+static int
+autofs_mount_2_req(autofs_lookupargs *m,
+ autofs_mountres *res,
+ struct authunix_parms *cred,
+ SVCXPRT *transp)
+{
+ int err = AUTOFS_OK;
+ am_node *mp, *new_mp;
+ mntfs *mf;
+
+ dlog("MOUNT REQUEST: name=%s[%s] map=%s opts=%s path=%s direct=%d",
+ m->name, m->subdir, m->map, m->opts,
+ m->path, m->isdirect);
+
+ /* find the effective uid/gid from RPC request */
+ xsnprintf(opt_uid, sizeof(uid_str), "%d", (int) cred->aup_uid);
+ xsnprintf(opt_gid, sizeof(gid_str), "%d", (int) cred->aup_gid);
+
+ mp = find_ap(m->path);
+ if (!mp) {
+ plog(XLOG_ERROR, "map %s not found", m->path);
+ res->mr_type.status = AUTOFS_DONE;
+ res->mr_type.mount_result_type_u.error = AUTOFS_NOENT;
+ goto out;
+ }
+
+ mf = mp->am_al->al_mnt;
+ new_mp = mf->mf_ops->lookup_child(mp, m->name + m->isdirect, &err, VLOOK_CREATE);
+ if (new_mp && err < 0) {
+ /* new_mp->am_transp = transp; */
+ new_mp = mf->mf_ops->mount_child(new_mp, &err);
+ }
+ if (new_mp == NULL) {
+ if (err < 0) {
+ /* we're working on it */
+ amd_stats.d_drops++;
+ return 1;
+ }
+ res->mr_type.status = AUTOFS_DONE;
+ res->mr_type.mount_result_type_u.error = AUTOFS_NOENT;
+ goto out;
+ }
+
+ if (gopt.flags & CFM_AUTOFS_USE_LOFS ||
+ new_mp->am_al->al_mnt->mf_flags & MFF_ON_AUTOFS) {
+ res->mr_type.status = AUTOFS_DONE;
+ res->mr_type.mount_result_type_u.error = AUTOFS_OK;
+ } else {
+ struct action_list *list = malloc(sizeof(struct action_list));
+ char *target;
+ if (new_mp->am_link)
+ target = new_mp->am_link;
+ else
+ target = new_mp->am_al->al_mnt->mf_mount;
+ list->action.action = AUTOFS_LINK_RQ;
+ list->action.action_list_entry_u.linka.dir = xstrdup(new_mp->am_name);
+ list->action.action_list_entry_u.linka.link = xstrdup(target);
+ list->next = NULL;
+ res->mr_type.status = AUTOFS_ACTION;
+ res->mr_type.mount_result_type_u.list = list;
+ }
+
+out:
+ res->mr_verbose = 1;
+
+ switch (res->mr_type.status) {
+ case AUTOFS_ACTION:
+ dlog("MOUNT REPLY: status=%d, AUTOFS_ACTION", err);
+ break;
+ case AUTOFS_DONE:
+ dlog("MOUNT REPLY: status=%d, AUTOFS_DONE", err);
+ break;
+ default:
+ dlog("MOUNT REPLY: status=%d, UNKNOWN(%d)", err, res->mr_type.status);
+ }
+
+ if (err) {
+ if (m->isdirect) {
+ /* direct mount */
+ plog(XLOG_ERROR, "mount of %s failed", m->path);
+ } else {
+ /* indirect mount */
+ plog(XLOG_ERROR, "mount of %s/%s failed", m->path, m->name);
+ }
+ }
+ return 0;
+}
+
+
+static void
+autofs_mount_2_free(struct autofs_mountres *res)
+{
+ if (res->mr_type.status == AUTOFS_ACTION &&
+ res->mr_type.mount_result_type_u.list != NULL) {
+ autofs_action action;
+ dlog("freeing action list");
+ action = res->mr_type.mount_result_type_u.list->action.action;
+ if (action == AUTOFS_LINK_RQ) {
+ /*
+ * Free link information
+ */
+ struct linka *link;
+ link = &(res->mr_type.mount_result_type_u.list->action.action_list_entry_u.linka);
+ if (link->dir)
+ XFREE(link->dir);
+ if (link->link)
+ XFREE(link->link);
+ } else if (action == AUTOFS_MOUNT_RQ) {
+ struct mounta *mnt;
+ mnt = &(res->mr_type.mount_result_type_u.list->action.action_list_entry_u.mounta);
+ if (mnt->spec)
+ XFREE(mnt->spec);
+ if (mnt->dir)
+ XFREE(mnt->dir);
+ if (mnt->fstype)
+ XFREE(mnt->fstype);
+ if (mnt->dataptr)
+ XFREE(mnt->dataptr);
+#ifdef HAVE_MOUNTA_OPTPTR
+ if (mnt->optptr)
+ XFREE(mnt->optptr);
+#endif /* HAVE_MOUNTA_OPTPTR */
+ }
+ XFREE(res->mr_type.mount_result_type_u.list);
+ }
+}
+
+
+static int
+autofs_unmount_2_req(umntrequest *ul,
+ umntres *res,
+ struct authunix_parms *cred,
+ SVCXPRT *transp)
+{
+ int mapno, err;
+ am_node *mp = NULL;
+
+#ifdef HAVE_STRUCT_UMNTREQUEST_DEVID
+ dlog("UNMOUNT REQUEST: dev=%lx rdev=%lx %s",
+ (u_long) ul->devid,
+ (u_long) ul->rdevid,
+ ul->isdirect ? "direct" : "indirect");
+#else /* not HAVE_STRUCT_UMNTREQUEST_DEVID */
+ dlog("UNMOUNT REQUEST: mntresource='%s' mntpnt='%s' fstype='%s' mntopts='%s' %s",
+ ul->mntresource,
+ ul->mntpnt,
+ ul->fstype,
+ ul->mntopts,
+ ul->isdirect ? "direct" : "indirect");
+#endif /* not HAVE_STRUCT_UMNTREQUEST_DEVID */
+
+ /* by default, and if not found, succeed */
+ res->status = 0;
+
+#ifdef HAVE_STRUCT_UMNTREQUEST_DEVID
+ for (mp = get_first_exported_ap(&mapno);
+ mp;
+ mp = get_next_exported_ap(&mapno)) {
+ if (mp->am_dev == ul->devid &&
+ mp->am_rdev == ul->rdevid)
+ break;
+ }
+#else /* not HAVE_STRUCT_UMNTREQUEST_DEVID */
+ mp = find_ap(ul->mntpnt);
+#endif /* not HAVE_STRUCT_UMNTREQUEST_DEVID */
+
+ if (mp) {
+ /* save RPC context */
+ if (!mp->am_transp && transp) {
+ mp->am_transp = (SVCXPRT *) xmalloc(sizeof(SVCXPRT));
+ *(mp->am_transp) = *transp;
+ }
+
+ mapno = mp->am_mapno;
+ err = unmount_mp(mp);
+
+ if (err)
+ /* backgrounded, don't reply yet */
+ return 1;
+
+ if (get_exported_ap(mapno))
+ /* unmounting failed, tell the kernel */
+ res->status = 1;
+ }
+
+ dlog("UNMOUNT REPLY: status=%d", res->status);
+ return 0;
+}
+
+
+/*
+ * These exist only in the AutoFS V2 protocol.
+ */
+#ifdef AUTOFS_POSTUNMOUNT
+/* XXX not implemented */
+static int
+autofs_postunmount_2_req(postumntreq *req,
+ postumntres *res,
+ struct authunix_parms *cred,
+ SVCXPRT *transp)
+{
+ postumntreq *ul = req;
+
+ dlog("POSTUNMOUNT REQUEST: dev=%lx rdev=%lx",
+ (u_long) ul->devid,
+ (u_long) ul->rdevid);
+
+ /* succeed unconditionally */
+ res->status = 0;
+
+ dlog("POSTUNMOUNT REPLY: status=%d", res->status);
+ return 0;
+}
+
+
+/* XXX not implemented */
+static int
+autofs_postmount_2_req(postmountreq *req,
+ postmountres *res,
+ struct authunix_parms *cred,
+ SVCXPRT *transp)
+{
+ dlog("POSTMOUNT REQUEST: %s\tdev=%lx\tspecial=%s %s",
+ req->mountp, (u_long) req->devid, req->special, req->mntopts);
+
+ /* succeed unconditionally */
+ res->status = 0;
+
+ dlog("POSTMOUNT REPLY: status=%d", res->status);
+ return 0;
+}
+#endif /* AUTOFS_POSTUNMOUNT */
+
+
+static int
+autofs_readdir_2_req(struct autofs_rddirargs *req,
+ struct amd_rddirres *res,
+ struct authunix_parms *cred,
+ SVCXPRT *transp)
+{
+ am_node *mp;
+ int err;
+ static nfsentry e_res[MAX_READDIR_ENTRIES];
+
+ dlog("READDIR REQUEST: %s @ %d",
+ req->rda_map, (int) req->rda_offset);
+
+ mp = find_ap(req->rda_map);
+ if (!mp) {
+ plog(XLOG_ERROR, "map %s not found", req->rda_map);
+ res->rd_status = AUTOFS_NOENT;
+ goto out;
+ }
+
+ mp->am_stats.s_readdir++;
+ req->rda_offset -= AUTOFS_DAEMONCOOKIE;
+ err = mp->am_al->al_mnt->mf_ops->readdir(mp, (char *)&req->rda_offset,
+ &res->rd_dl, e_res, req->rda_count);
+ if (err) {
+ res->rd_status = AUTOFS_ECOMM;
+ goto out;
+ }
+
+ res->rd_status = AUTOFS_OK;
+ res->rd_bufsize = req->rda_count;
+
+out:
+ dlog("READDIR REPLY: status=%d", res->rd_status);
+ return 0;
+}
+
+
+/****************************************************************************/
+/* autofs program dispatcher */
+static void
+autofs_program_2(struct svc_req *rqstp, SVCXPRT *transp)
+{
+ union {
+ autofs_lookupargs autofs_mount_2_arg;
+ autofs_lookupargs autofs_lookup_2_arg;
+ umntrequest autofs_umount_2_arg;
+ autofs_rddirargs autofs_readdir_2_arg;
+#ifdef AUTOFS_POSTUNMOUNT
+ postmountreq autofs_postmount_2_arg;
+ postumntreq autofs_postumnt_2_arg;
+#endif /* AUTOFS_POSTUNMOUNT */
+ } argument;
+
+ union {
+ autofs_mountres mount_res;
+ autofs_lookupres lookup_res;
+ umntres umount_res;
+ amd_rddirres readdir_res;
+#ifdef AUTOFS_POSTUNMOUNT
+ postumntres postumnt_res;
+ postmountres postmnt_res;
+#endif /* AUTOFS_POSTUNMOUNT */
+ } result;
+ int ret;
+
+ bool_t (*xdr_argument)();
+ bool_t (*xdr_result)();
+ int (*local)();
+ void (*local_free)() = NULL;
+
+ current_transp = transp;
+
+ switch (rqstp->rq_proc) {
+
+ case AUTOFS_NULL:
+ svc_sendreply(transp,
+ (XDRPROC_T_TYPE) xdr_void,
+ (SVC_IN_ARG_TYPE) NULL);
+ return;
+
+ case AUTOFS_LOOKUP:
+ xdr_argument = xdr_autofs_lookupargs;
+ xdr_result = xdr_autofs_lookupres;
+ local = autofs_lookup_2_req;
+ local_free = autofs_lookup_2_free;
+ break;
+
+ case AUTOFS_MOUNT:
+ xdr_argument = xdr_autofs_lookupargs;
+ xdr_result = xdr_autofs_mountres;
+ local = autofs_mount_2_req;
+ local_free = autofs_mount_2_free;
+ break;
+
+ case AUTOFS_UNMOUNT:
+ xdr_argument = xdr_umntrequest;
+ xdr_result = xdr_umntres;
+ local = autofs_unmount_2_req;
+ break;
+
+/*
+ * These exist only in the AutoFS V2 protocol.
+ */
+#ifdef AUTOFS_POSTUNMOUNT
+ case AUTOFS_POSTUNMOUNT:
+ xdr_argument = xdr_postumntreq;
+ xdr_result = xdr_postumntres;
+ local = autofs_postunmount_2_req;
+ break;
+
+ case AUTOFS_POSTMOUNT:
+ xdr_argument = xdr_postmountreq;
+ xdr_result = xdr_postmountres;
+ local = autofs_postmount_2_req;
+ break;
+#endif /* AUTOFS_POSTUNMOUNT */
+
+ case AUTOFS_READDIR:
+ xdr_argument = xdr_autofs_rddirargs;
+ xdr_result = xdr_amd_rddirres;
+ local = autofs_readdir_2_req;
+ break;
+
+ default:
+ svcerr_noproc(transp);
+ return;
+ }
+
+ memset((char *) &argument, 0, sizeof(argument));
+ if (!svc_getargs(transp,
+ (XDRPROC_T_TYPE) xdr_argument,
+ (SVC_IN_ARG_TYPE) &argument)) {
+ plog(XLOG_ERROR, "AUTOFS xdr decode failed for %d %d %d",
+ (int) rqstp->rq_prog, (int) rqstp->rq_vers, (int) rqstp->rq_proc);
+ svcerr_decode(transp);
+ return;
+ }
+
+ memset((char *)&result, 0, sizeof(result));
+ ret = (*local) (&argument, &result, rqstp->rq_clntcred, transp);
+
+ current_transp = NULL;
+
+ /* send reply only if the RPC method returned 0 */
+ if (!ret) {
+ if (!svc_sendreply(transp,
+ (XDRPROC_T_TYPE) xdr_result,
+ (SVC_IN_ARG_TYPE) &result)) {
+ svcerr_systemerr(transp);
+ }
+ }
+
+ if (!svc_freeargs(transp,
+ (XDRPROC_T_TYPE) xdr_argument,
+ (SVC_IN_ARG_TYPE) &argument)) {
+ plog(XLOG_FATAL, "unable to free rpc arguments in autofs_program_2");
+ }
+
+ if (local_free)
+ (*local_free)(&result);
+}
+
+
+int
+autofs_get_fh(am_node *mp)
+{
+ autofs_fh_t *fh;
+ char buf[MAXHOSTNAMELEN];
+ mntfs *mf = mp->am_al->al_mnt;
+ struct utsname utsname;
+
+ plog(XLOG_DEBUG, "autofs_get_fh for %s", mp->am_path);
+ fh = ALLOC(autofs_fh_t);
+ memset((voidp) fh, 0, sizeof(autofs_fh_t)); /* Paranoid */
+
+ /*
+ * SET MOUNT ARGS
+ */
+ if (uname(&utsname) < 0) {
+ xstrlcpy(buf, "localhost.autofs", sizeof(buf));
+ } else {
+ xstrlcpy(buf, utsname.nodename, sizeof(buf));
+ xstrlcat(buf, ".autofs", sizeof(buf));
+ }
+#ifdef HAVE_AUTOFS_ARGS_T_ADDR
+ fh->addr.buf = xstrdup(buf);
+ fh->addr.len = fh->addr.maxlen = strlen(buf);
+#endif /* HAVE_AUTOFS_ARGS_T_ADDR */
+
+ fh->direct = ((mf->mf_ops->autofs_fs_flags & FS_DIRECT) == FS_DIRECT);
+ fh->rpc_to = 1; /* XXX: arbitrary */
+ fh->mount_to = mp->am_timeo;
+ fh->path = mp->am_path;
+ fh->opts = ""; /* XXX: arbitrary */
+ fh->map = mp->am_path; /* this is what we get back in readdir */
+ fh->subdir = "";
+ if (fh->direct)
+ fh->key = mp->am_name;
+ else
+ fh->key = "";
+
+ mp->am_autofs_fh = fh;
+ return 0;
+}
+
+
+void
+autofs_mounted(am_node *mp)
+{
+ /* We don't want any timeouts on autofs nodes */
+ mp->am_autofs_ttl = NEVER;
+}
+
+
+void
+autofs_release_fh(am_node *mp)
+{
+ autofs_fh_t *fh = mp->am_autofs_fh;
+#ifdef HAVE_AUTOFS_ARGS_T_ADDR
+ XFREE(fh->addr.buf);
+#endif /* HAVE_AUTOFS_ARGS_T_ADDR */
+ XFREE(fh);
+ mp->am_autofs_fh = NULL;
+}
+
+
+void
+autofs_get_mp(am_node *mp)
+{
+ /* nothing to do */
+}
+
+
+void
+autofs_release_mp(am_node *mp)
+{
+ /* nothing to do */
+}
+
+
+void
+autofs_add_fdset(fd_set *readfds)
+{
+ /* nothing to do */
+}
+
+
+int
+autofs_handle_fdset(fd_set *readfds, int nsel)
+{
+ /* nothing to do */
+ return nsel;
+}
+
+
+/*
+ * Create the autofs service for amd
+ */
+int
+create_autofs_service(void)
+{
+ dlog("creating autofs service listener");
+ return register_autofs_service(AUTOFS_CONFTYPE, autofs_program_2);
+}
+
+
+int
+destroy_autofs_service(void)
+{
+ dlog("destroying autofs service listener");
+ return unregister_autofs_service(AUTOFS_CONFTYPE);
+}
+
+
+int
+autofs_mount_fs(am_node *mp, mntfs *mf)
+{
+ int err = 0;
+ char *target, *target2 = NULL;
+ struct stat buf;
+
+ /*
+ * For sublinks, we could end up here with an already mounted f/s.
+ * Don't do anything in that case.
+ */
+ if (!(mf->mf_flags & MFF_MOUNTED))
+ err = mf->mf_ops->mount_fs(mp, mf);
+
+ if (err || mf->mf_flags & MFF_ON_AUTOFS)
+ /* Nothing else to do */
+ return err;
+
+ if (!(gopt.flags & CFM_AUTOFS_USE_LOFS))
+ /* Symlinks will be requested in autofs_mount_succeeded */
+ return 0;
+
+ if (mp->am_link)
+ target = mp->am_link;
+ else
+ target = mf->mf_mount;
+
+ if (target[0] != '/')
+ target2 = str3cat(NULL, mp->am_parent->am_path, "/", target);
+ else
+ target2 = xstrdup(target);
+
+ plog(XLOG_INFO, "autofs: converting from link to lofs (%s -> %s)", mp->am_path, target2);
+
+ /*
+ * we need to stat() the destination, because the bind mount does not
+ * follow symlinks and/or allow for non-existent destinations.
+ * we fall back to symlinks if there are problems.
+ *
+ * we need to temporarily change pgrp, otherwise our stat() won't
+ * trigger whatever cascading mounts are needed.
+ *
+ * WARNING: we will deadlock if this function is called from the master
+ * amd process and it happens to trigger another auto mount. Therefore,
+ * this function should be called only from a child amd process, or
+ * at the very least it should not be called from the parent unless we
+ * know for sure that it won't cause a recursive mount. We refuse to
+ * cause the recursive mount anyway if called from the parent amd.
+ */
+ if (!foreground) {
+ if ((err = stat(target2, &buf)))
+ goto out;
+ }
+ if ((err = lstat(target2, &buf)))
+ goto out;
+
+ if ((err = mount_lofs(mp->am_path, target2, mf->mf_mopts, 1))) {
+ errno = err;
+ goto out;
+ }
+
+ out:
+ if (target2)
+ XFREE(target2);
+
+ if (err)
+ return errno;
+ return 0;
+}
+
+
+int
+autofs_umount_fs(am_node *mp, mntfs *mf)
+{
+ int err = 0;
+ if (!(mf->mf_flags & MFF_ON_AUTOFS) &&
+ gopt.flags & CFM_AUTOFS_USE_LOFS) {
+ err = UMOUNT_FS(mp->am_path, mnttab_file_name, 1);
+ if (err)
+ return err;
+ }
+
+ /*
+ * Multiple sublinks could reference this f/s.
+ * Don't actually unmount it unless we're holding the last reference.
+ */
+ if (mf->mf_refc == 1)
+ err = mf->mf_ops->umount_fs(mp, mf);
+ return err;
+}
+
+
+int
+autofs_umount_succeeded(am_node *mp)
+{
+ umntres res;
+ SVCXPRT *transp = mp->am_transp;
+
+ if (transp) {
+ res.status = 0;
+
+ if (!svc_sendreply(transp,
+ (XDRPROC_T_TYPE) xdr_umntres,
+ (SVC_IN_ARG_TYPE) &res))
+ svcerr_systemerr(transp);
+
+ dlog("Quick reply sent for %s", mp->am_al->al_mnt->mf_mount);
+ XFREE(transp);
+ mp->am_transp = NULL;
+ }
+
+ plog(XLOG_INFO, "autofs: unmounting %s succeeded", mp->am_path);
+ return 0;
+}
+
+
+int
+autofs_umount_failed(am_node *mp)
+{
+ umntres res;
+ SVCXPRT *transp = mp->am_transp;
+
+ if (transp) {
+ res.status = 1;
+
+ if (!svc_sendreply(transp,
+ (XDRPROC_T_TYPE) xdr_umntres,
+ (SVC_IN_ARG_TYPE) &res))
+ svcerr_systemerr(transp);
+
+ dlog("Quick reply sent for %s", mp->am_al->al_mnt->mf_mount);
+ XFREE(transp);
+ mp->am_transp = NULL;
+ }
+
+ plog(XLOG_INFO, "autofs: unmounting %s failed", mp->am_path);
+ return 0;
+}
+
+
+void
+autofs_mount_succeeded(am_node *mp)
+{
+ SVCXPRT *transp = mp->am_transp;
+ struct stat stb;
+
+ /*
+ * Store dev and rdev -- but not for symlinks
+ */
+ if (gopt.flags & CFM_AUTOFS_USE_LOFS ||
+ mp->am_al->al_mnt->mf_flags & MFF_ON_AUTOFS) {
+ if (!lstat(mp->am_path, &stb)) {
+ mp->am_dev = stb.st_dev;
+ mp->am_rdev = stb.st_rdev;
+ }
+ /* don't expire the entries -- the kernel will do it for us */
+ mp->am_flags |= AMF_NOTIMEOUT;
+ }
+
+ if (transp) {
+ autofs_mountres res;
+ res.mr_type.status = AUTOFS_DONE;
+ res.mr_type.mount_result_type_u.error = AUTOFS_OK;
+ res.mr_verbose = 1;
+
+ if (!svc_sendreply(transp,
+ (XDRPROC_T_TYPE) xdr_autofs_mountres,
+ (SVC_IN_ARG_TYPE) &res))
+ svcerr_systemerr(transp);
+
+ dlog("Quick reply sent for %s", mp->am_al->al_mnt->mf_mount);
+ XFREE(transp);
+ mp->am_transp = NULL;
+ }
+
+ plog(XLOG_INFO, "autofs: mounting %s succeeded", mp->am_path);
+}
+
+
+void
+autofs_mount_failed(am_node *mp)
+{
+ SVCXPRT *transp = mp->am_transp;
+
+ if (transp) {
+ autofs_mountres res;
+ res.mr_type.status = AUTOFS_DONE;
+ res.mr_type.mount_result_type_u.error = AUTOFS_NOENT;
+ res.mr_verbose = 1;
+
+ if (!svc_sendreply(transp,
+ (XDRPROC_T_TYPE) xdr_autofs_mountres,
+ (SVC_IN_ARG_TYPE) &res))
+ svcerr_systemerr(transp);
+
+ dlog("Quick reply sent for %s", mp->am_al->al_mnt->mf_mount);
+ XFREE(transp);
+ mp->am_transp = NULL;
+ }
+
+ plog(XLOG_INFO, "autofs: mounting %s failed", mp->am_path);
+}
+
+
+void
+autofs_get_opts(char *opts, size_t l, autofs_fh_t *fh)
+{
+ xsnprintf(opts, l, "%sdirect",
+ fh->direct ? "" : "in");
+}
+
+
+int
+autofs_compute_mount_flags(mntent_t *mntp)
+{
+ /* Must use overlay mounts */
+ return MNT2_GEN_OPT_OVERLAY;
+}
+
+
+void autofs_timeout_mp(am_node *mp)
+{
+ /* We don't want any timeouts on autofs nodes */
+ mp->am_autofs_ttl = NEVER;
+}