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-rw-r--r--utils/mountd/Makefile.am70
-rw-r--r--utils/mountd/Makefile.in941
-rw-r--r--utils/mountd/mount_dispatch.c84
-rw-r--r--utils/mountd/mountd.c887
-rw-r--r--utils/mountd/mountd.h54
-rw-r--r--utils/mountd/mountd.man362
-rw-r--r--utils/mountd/rmtab.c254
-rw-r--r--utils/mountd/svc_run.c109
8 files changed, 2761 insertions, 0 deletions
diff --git a/utils/mountd/Makefile.am b/utils/mountd/Makefile.am
new file mode 100644
index 0000000..197ef29
--- /dev/null
+++ b/utils/mountd/Makefile.am
@@ -0,0 +1,70 @@
+## Process this file with automake to produce Makefile.in
+
+OPTLIBS =
+if CONFIG_JUNCTION
+OPTLIBS += ../../support/junction/libjunction.la $(LIBXML2)
+endif
+
+man8_MANS = mountd.man
+EXTRA_DIST = $(man8_MANS)
+
+RPCPREFIX = rpc.
+KPREFIX = @kprefix@
+sbin_PROGRAMS = mountd
+
+mountd_SOURCES = mountd.c mount_dispatch.c rmtab.c \
+ svc_run.c mountd.h
+mountd_LDADD = ../../support/export/libexport.a \
+ ../../support/nfs/libnfs.la \
+ ../../support/misc/libmisc.a \
+ ../../support/reexport/libreexport.a \
+ $(OPTLIBS) \
+ $(LIBBSD) $(LIBWRAP) $(LIBNSL) $(LIBBLKID) -luuid $(LIBTIRPC) \
+ $(LIBPTHREAD)
+
+mountd_CPPFLAGS = $(AM_CPPFLAGS) $(CPPFLAGS) \
+ -I$(top_builddir)/support/include \
+ -I$(top_srcdir)/support/export
+
+MAINTAINERCLEANFILES = Makefile.in
+
+#######################################################################
+# The following allows the current practice of having
+# daemons renamed during the install to include RPCPREFIX
+# and the KPREFIX
+# This could all be done much easier with program_transform_name
+# ( program_transform_name = s/^/$(RPCPREFIX)$(KPREFIX)/ )
+# but that also renames the man pages, which the current
+# practice does not do.
+install-exec-hook:
+ (cd $(DESTDIR)$(sbindir) && \
+ for p in $(sbin_PROGRAMS); do \
+ mv -f $$p$(EXEEXT) $(RPCPREFIX)$(KPREFIX)$$p$(EXEEXT) ;\
+ done)
+uninstall-hook:
+ (cd $(DESTDIR)$(sbindir) && \
+ for p in $(sbin_PROGRAMS); do \
+ rm -f $(RPCPREFIX)$(KPREFIX)$$p$(EXEEXT) ;\
+ done)
+
+
+# XXX This makes some assumptions about what automake does.
+# XXX But there is no install-man-hook or install-man-local.
+install-man: install-man8 install-man-links
+uninstall-man: uninstall-man8 uninstall-man-links
+
+install-man-links:
+ (cd $(DESTDIR)$(man8dir) && \
+ for m in $(man8_MANS) $(dist_man8_MANS) $(nodist_man8_MANS); do \
+ inst=`echo $$m | sed -e 's/man$$/8/'`; \
+ rm -f $(RPCPREFIX)$$inst ; \
+ $(LN_S) $$inst $(RPCPREFIX)$$inst ; \
+ done)
+
+uninstall-man-links:
+ (cd $(DESTDIR)$(man8dir) && \
+ for m in $(man8_MANS) $(dist_man8_MANS) $(nodist_man8_MANS); do \
+ inst=`echo $$m | sed -e 's/man$$/8/'`; \
+ rm -f $(RPCPREFIX)$$inst ; \
+ done)
+
diff --git a/utils/mountd/Makefile.in b/utils/mountd/Makefile.in
new file mode 100644
index 0000000..7754575
--- /dev/null
+++ b/utils/mountd/Makefile.in
@@ -0,0 +1,941 @@
+# Makefile.in generated by automake 1.16.5 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
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+ else \
+ false; \
+ fi; \
+}
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+ case $${target_option-} in \
+ ?) ;; \
+ *) echo "am__make_running_with_option: internal error: invalid" \
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+ exit 1;; \
+ esac; \
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+CONFIG_CLEAN_VPATH_FILES =
+am__installdirs = "$(DESTDIR)$(sbindir)" "$(DESTDIR)$(man8dir)"
+PROGRAMS = $(sbin_PROGRAMS)
+am_mountd_OBJECTS = mountd-mountd.$(OBJEXT) \
+ mountd-mount_dispatch.$(OBJEXT) mountd-rmtab.$(OBJEXT) \
+ mountd-svc_run.$(OBJEXT)
+mountd_OBJECTS = $(am_mountd_OBJECTS)
+am__DEPENDENCIES_1 =
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+@CONFIG_JUNCTION_TRUE@ $(am__DEPENDENCIES_1)
+am__DEPENDENCIES_3 = $(am__DEPENDENCIES_2)
+mountd_DEPENDENCIES = ../../support/export/libexport.a \
+ ../../support/nfs/libnfs.la ../../support/misc/libmisc.a \
+ ../../support/reexport/libreexport.a $(am__DEPENDENCIES_3) \
+ $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \
+ $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \
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+am__v_GEN_0 = @echo " GEN " $@;
+am__v_GEN_1 =
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 =
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)/support/include
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__maybe_remake_depfiles = depfiles
+am__depfiles_remade = ./$(DEPDIR)/mountd-mount_dispatch.Po \
+ ./$(DEPDIR)/mountd-mountd.Po ./$(DEPDIR)/mountd-rmtab.Po \
+ ./$(DEPDIR)/mountd-svc_run.Po
+am__mv = mv -f
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+ $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+ $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) \
+ $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+ $(AM_CFLAGS) $(CFLAGS)
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+am__v_CC_0 = @echo " CC " $@;
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+ sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
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+man8_MANS = mountd.man
+EXTRA_DIST = $(man8_MANS)
+RPCPREFIX = rpc.
+KPREFIX = @kprefix@
+mountd_SOURCES = mountd.c mount_dispatch.c rmtab.c \
+ svc_run.c mountd.h
+
+mountd_LDADD = ../../support/export/libexport.a \
+ ../../support/nfs/libnfs.la \
+ ../../support/misc/libmisc.a \
+ ../../support/reexport/libreexport.a \
+ $(OPTLIBS) \
+ $(LIBBSD) $(LIBWRAP) $(LIBNSL) $(LIBBLKID) -luuid $(LIBTIRPC) \
+ $(LIBPTHREAD)
+
+mountd_CPPFLAGS = $(AM_CPPFLAGS) $(CPPFLAGS) \
+ -I$(top_builddir)/support/include \
+ -I$(top_srcdir)/support/export
+
+MAINTAINERCLEANFILES = Makefile.in
+all: all-am
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+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+ -test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES)
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-sbinPROGRAMS \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -f ./$(DEPDIR)/mountd-mount_dispatch.Po
+ -rm -f ./$(DEPDIR)/mountd-mountd.Po
+ -rm -f ./$(DEPDIR)/mountd-rmtab.Po
+ -rm -f ./$(DEPDIR)/mountd-svc_run.Po
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-man
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-sbinPROGRAMS
+ @$(NORMAL_INSTALL)
+ $(MAKE) $(AM_MAKEFLAGS) install-exec-hook
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f ./$(DEPDIR)/mountd-mount_dispatch.Po
+ -rm -f ./$(DEPDIR)/mountd-mountd.Po
+ -rm -f ./$(DEPDIR)/mountd-rmtab.Po
+ -rm -f ./$(DEPDIR)/mountd-svc_run.Po
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-man uninstall-sbinPROGRAMS
+ @$(NORMAL_INSTALL)
+ $(MAKE) $(AM_MAKEFLAGS) uninstall-hook
+.MAKE: install-am install-exec-am install-strip uninstall-am
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+ clean-generic clean-libtool clean-sbinPROGRAMS cscopelist-am \
+ ctags ctags-am distclean distclean-compile distclean-generic \
+ distclean-libtool distclean-tags distdir dvi dvi-am html \
+ html-am info info-am install install-am install-data \
+ install-data-am install-dvi install-dvi-am install-exec \
+ install-exec-am install-exec-hook install-html install-html-am \
+ install-info install-info-am install-man install-man8 \
+ install-pdf install-pdf-am install-ps install-ps-am \
+ install-sbinPROGRAMS install-strip installcheck \
+ installcheck-am installdirs maintainer-clean \
+ maintainer-clean-generic mostlyclean mostlyclean-compile \
+ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+ tags tags-am uninstall uninstall-am uninstall-hook \
+ uninstall-man uninstall-man8 uninstall-sbinPROGRAMS
+
+.PRECIOUS: Makefile
+
+
+#######################################################################
+# The following allows the current practice of having
+# daemons renamed during the install to include RPCPREFIX
+# and the KPREFIX
+# This could all be done much easier with program_transform_name
+# ( program_transform_name = s/^/$(RPCPREFIX)$(KPREFIX)/ )
+# but that also renames the man pages, which the current
+# practice does not do.
+install-exec-hook:
+ (cd $(DESTDIR)$(sbindir) && \
+ for p in $(sbin_PROGRAMS); do \
+ mv -f $$p$(EXEEXT) $(RPCPREFIX)$(KPREFIX)$$p$(EXEEXT) ;\
+ done)
+uninstall-hook:
+ (cd $(DESTDIR)$(sbindir) && \
+ for p in $(sbin_PROGRAMS); do \
+ rm -f $(RPCPREFIX)$(KPREFIX)$$p$(EXEEXT) ;\
+ done)
+
+# XXX This makes some assumptions about what automake does.
+# XXX But there is no install-man-hook or install-man-local.
+install-man: install-man8 install-man-links
+uninstall-man: uninstall-man8 uninstall-man-links
+
+install-man-links:
+ (cd $(DESTDIR)$(man8dir) && \
+ for m in $(man8_MANS) $(dist_man8_MANS) $(nodist_man8_MANS); do \
+ inst=`echo $$m | sed -e 's/man$$/8/'`; \
+ rm -f $(RPCPREFIX)$$inst ; \
+ $(LN_S) $$inst $(RPCPREFIX)$$inst ; \
+ done)
+
+uninstall-man-links:
+ (cd $(DESTDIR)$(man8dir) && \
+ for m in $(man8_MANS) $(dist_man8_MANS) $(nodist_man8_MANS); do \
+ inst=`echo $$m | sed -e 's/man$$/8/'`; \
+ rm -f $(RPCPREFIX)$$inst ; \
+ done)
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/utils/mountd/mount_dispatch.c b/utils/mountd/mount_dispatch.c
new file mode 100644
index 0000000..ba6981d
--- /dev/null
+++ b/utils/mountd/mount_dispatch.c
@@ -0,0 +1,84 @@
+/*
+ * mount_dispatch This file contains the function dispatch table.
+ *
+ * Copyright (C) 1995 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifdef HAVE_TCP_WRAPPER
+#include "tcpwrapper.h"
+#endif
+
+#include "mountd.h"
+#include "rpcmisc.h"
+
+/*
+ * Procedures for MNTv1
+ */
+static struct rpc_dentry mnt_1_dtable[] = {
+ dtable_ent(mount_null,1,void,void), /* NULL */
+ dtable_ent(mount_mnt,1,dirpath,fhstatus), /* MNT */
+ dtable_ent(mount_dump,1,void,mountlist), /* DUMP */
+ dtable_ent(mount_umnt,1,dirpath,void), /* UMNT */
+ dtable_ent(mount_umntall,1,void,void), /* UMNTALL */
+ dtable_ent(mount_export,1,void,exports), /* EXPORT */
+ dtable_ent(mount_exportall,1,void,exports), /* EXPORTALL */
+};
+
+/*
+ * Procedures for MNTv2
+ */
+static struct rpc_dentry mnt_2_dtable[] = {
+ dtable_ent(mount_null,1,void,void), /* NULL */
+ dtable_ent(mount_mnt,1,dirpath,fhstatus), /* MNT */
+ dtable_ent(mount_dump,1,void,mountlist), /* DUMP */
+ dtable_ent(mount_umnt,1,dirpath,void), /* UMNT */
+ dtable_ent(mount_umntall,1,void,void), /* UMNTALL */
+ dtable_ent(mount_export,1,void,exports), /* EXPORT */
+ dtable_ent(mount_exportall,1,void,exports), /* EXPORTALL */
+ dtable_ent(mount_pathconf,2,dirpath,ppathcnf), /* PATHCONF */
+};
+
+/*
+ * Procedures for MNTv3
+ */
+static struct rpc_dentry mnt_3_dtable[] = {
+ dtable_ent(mount_null,1,void,void), /* NULL */
+ dtable_ent(mount_mnt,3,dirpath,mountres3), /* MNT */
+ dtable_ent(mount_dump,1,void,mountlist), /* DUMP */
+ dtable_ent(mount_umnt,1,dirpath,void), /* UMNT */
+ dtable_ent(mount_umntall,1,void,void), /* UMNTALL */
+ dtable_ent(mount_export,1,void,exports), /* EXPORT */
+};
+
+#define number_of(x) (sizeof(x)/sizeof(x[0]))
+
+static struct rpc_dtable dtable[] = {
+ { mnt_1_dtable, number_of(mnt_1_dtable) },
+ { mnt_2_dtable, number_of(mnt_2_dtable) },
+ { mnt_3_dtable, number_of(mnt_3_dtable) },
+};
+
+/*
+ * The main dispatch routine.
+ */
+void
+mount_dispatch(struct svc_req *rqstp, SVCXPRT *transp)
+{
+ union mountd_arguments argument;
+ union mountd_results result;
+
+#ifdef HAVE_TCP_WRAPPER
+ /* remote host authorization check */
+ if (!check_default("mountd", nfs_getrpccaller(transp), MOUNTPROG)) {
+ svcerr_auth (transp, AUTH_FAILED);
+ return;
+ }
+#endif
+
+ rpc_dispatch(rqstp, transp, dtable, number_of(dtable),
+ &argument, &result);
+}
diff --git a/utils/mountd/mountd.c b/utils/mountd/mountd.c
new file mode 100644
index 0000000..dbd5546
--- /dev/null
+++ b/utils/mountd/mountd.c
@@ -0,0 +1,887 @@
+/*
+ * utils/mountd/mountd.c
+ *
+ * Authenticate mount requests and retrieve file handle.
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <signal.h>
+#include <sys/stat.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/resource.h>
+
+#include "conffile.h"
+#include "xmalloc.h"
+#include "misc.h"
+#include "mountd.h"
+#include "rpcmisc.h"
+#include "pseudoflavors.h"
+#include "nfsd_path.h"
+#include "nfslib.h"
+#include "export.h"
+
+extern void my_svc_run(void);
+
+static void usage(const char *, int exitcode);
+static exports get_exportlist(void);
+static struct nfs_fh_len *get_rootfh(struct svc_req *, dirpath *, nfs_export **, mountstat3 *, int v3);
+
+int reverse_resolve = 0;
+int manage_gids;
+int use_ipaddr = -1;
+
+/* PRC: a high-availability callout program can be specified with -H
+ * When this is done, the program will receive callouts whenever clients
+ * send mount or unmount requests -- the callout is not needed for 2.6 kernel */
+char *ha_callout_prog = NULL;
+
+/* Number of mountd threads to start. Default is 1 and
+ * that's probably enough unless you need hundreds of
+ * clients to be able to mount at once. */
+static int num_threads = 1;
+/* Arbitrary limit on number of threads */
+#define MAX_THREADS 64
+
+static struct option longopts[] =
+{
+ { "foreground", 0, 0, 'F' },
+ { "descriptors", 1, 0, 'o' },
+ { "debug", 1, 0, 'd' },
+ { "help", 0, 0, 'h' },
+ { "nfs-version", 1, 0, 'V' },
+ { "no-nfs-version", 1, 0, 'N' },
+ { "version", 0, 0, 'v' },
+ { "port", 1, 0, 'p' },
+ { "no-tcp", 0, 0, 'n' },
+ { "ha-callout", 1, 0, 'H' },
+ { "state-directory-path", 1, 0, 's' },
+ { "num-threads", 1, 0, 't' },
+ { "reverse-lookup", 0, 0, 'r' },
+ { "manage-gids", 0, 0, 'g' },
+ { "no-udp", 0, 0, 'u' },
+ { "log-auth", 0, 0, 'l'},
+ { "cache-use-ipaddr", 0, 0, 'i'},
+ { "ttl", 1, 0, 'T'},
+ { NULL, 0, 0, 0 }
+};
+static char shortopts[] = "o:nFd:p:P:hH:N:V:vurs:t:gliT:";
+
+#define NFSVERSBIT(vers) (0x1 << (vers - 1))
+#define NFSVERSBIT_ALL (NFSVERSBIT(2) | NFSVERSBIT(3) | NFSVERSBIT(4))
+
+static int nfs_version = NFSVERSBIT_ALL;
+
+static int version2(void)
+{
+ return nfs_version & NFSVERSBIT(2);
+}
+
+static int version3(void)
+{
+ return nfs_version & NFSVERSBIT(3);
+}
+
+static int version23(void)
+{
+ return nfs_version & (NFSVERSBIT(2) | NFSVERSBIT(3));
+}
+
+static int version_any(void)
+{
+ return nfs_version & NFSVERSBIT_ALL;
+}
+
+static void
+unregister_services (void)
+{
+ nfs_svc_unregister(MOUNTPROG, MOUNTVERS);
+ nfs_svc_unregister(MOUNTPROG, MOUNTVERS_POSIX);
+ nfs_svc_unregister(MOUNTPROG, MOUNTVERS_NFSV3);
+}
+
+static void
+cleanup_lockfiles (void)
+{
+ unlink(etab.lockfn);
+ unlink(rmtab.lockfn);
+}
+
+/*
+ * Signal handler.
+ */
+static void
+killer (int sig)
+{
+ unregister_services();
+ if (num_threads > 1) {
+ /* play Kronos and eat our children */
+ kill(0, SIGTERM);
+ cache_wait_for_workers("mountd");
+ }
+ cleanup_lockfiles();
+ free_state_path_names(&etab);
+ free_state_path_names(&rmtab);
+ xlog (L_NOTICE, "Caught signal %d, un-registering and exiting.", sig);
+ exit(0);
+}
+
+static void
+sig_hup (int UNUSED(sig))
+{
+ /* don't exit on SIGHUP */
+ xlog (L_NOTICE, "Received SIGHUP... Ignoring.\n");
+ return;
+}
+
+bool_t
+mount_null_1_svc(struct svc_req *rqstp, void *UNUSED(argp),
+ void *UNUSED(resp))
+{
+ struct sockaddr *sap = nfs_getrpccaller(rqstp->rq_xprt);
+ char buf[INET6_ADDRSTRLEN];
+
+ xlog(D_CALL, "Received NULL request from %s",
+ host_ntop(sap, buf, sizeof(buf)));
+
+ return 1;
+}
+
+bool_t
+mount_mnt_1_svc(struct svc_req *rqstp, dirpath *path, fhstatus *res)
+{
+ struct sockaddr *sap = nfs_getrpccaller(rqstp->rq_xprt);
+ char buf[INET6_ADDRSTRLEN];
+ struct nfs_fh_len *fh;
+
+ xlog(D_CALL, "Received MNT1(%s) request from %s", *path,
+ host_ntop(sap, buf, sizeof(buf)));
+
+ fh = get_rootfh(rqstp, path, NULL, &res->fhs_status, 0);
+ if (fh)
+ memcpy(&res->fhstatus_u.fhs_fhandle, fh->fh_handle, 32);
+ return 1;
+}
+
+bool_t
+mount_dump_1_svc(struct svc_req *rqstp, void *UNUSED(argp), mountlist *res)
+{
+ struct sockaddr *sap = nfs_getrpccaller(rqstp->rq_xprt);
+ char buf[INET6_ADDRSTRLEN];
+
+ xlog(D_CALL, "Received DUMP request from %s",
+ host_ntop(sap, buf, sizeof(buf)));
+
+ *res = mountlist_list();
+
+ return 1;
+}
+
+bool_t
+mount_umnt_1_svc(struct svc_req *rqstp, dirpath *argp, void *UNUSED(resp))
+{
+ struct sockaddr *sap = nfs_getrpccaller(rqstp->rq_xprt);
+ nfs_export *exp;
+ char *p = *argp;
+ char rpath[MAXPATHLEN+1];
+ char buf[INET6_ADDRSTRLEN];
+
+ if (*p == '\0')
+ p = "/";
+
+ if (nfsd_realpath(p, rpath) != NULL) {
+ rpath[sizeof (rpath) - 1] = '\0';
+ p = rpath;
+ }
+
+ xlog(D_CALL, "Received UMNT(%s) request from %s", p,
+ host_ntop(sap, buf, sizeof(buf)));
+
+ exp = auth_authenticate("unmount", sap, p);
+ if (exp == NULL)
+ return 1;
+
+ mountlist_del(host_ntop(sap, buf, sizeof(buf)), p);
+ return 1;
+}
+
+bool_t
+mount_umntall_1_svc(struct svc_req *rqstp, void *UNUSED(argp),
+ void *UNUSED(resp))
+{
+ struct sockaddr *sap = nfs_getrpccaller(rqstp->rq_xprt);
+ char buf[INET6_ADDRSTRLEN];
+
+ xlog(D_CALL, "Received UMNTALL request from %s",
+ host_ntop(sap, buf, sizeof(buf)));
+
+ /* Reload /etc/exports if necessary */
+ auth_reload();
+
+ mountlist_del_all(nfs_getrpccaller(rqstp->rq_xprt));
+ return 1;
+}
+
+bool_t
+mount_export_1_svc(struct svc_req *rqstp, void *UNUSED(argp), exports *resp)
+{
+ struct sockaddr *sap = nfs_getrpccaller(rqstp->rq_xprt);
+ char buf[INET6_ADDRSTRLEN];
+
+ xlog(D_CALL, "Received EXPORT request from %s.",
+ host_ntop(sap, buf, sizeof(buf)));
+
+ *resp = get_exportlist();
+
+ return 1;
+}
+
+bool_t
+mount_exportall_1_svc(struct svc_req *rqstp, void *UNUSED(argp), exports *resp)
+{
+ struct sockaddr *sap = nfs_getrpccaller(rqstp->rq_xprt);
+ char buf[INET6_ADDRSTRLEN];
+
+ xlog(D_CALL, "Received EXPORTALL request from %s.",
+ host_ntop(sap, buf, sizeof(buf)));
+
+ *resp = get_exportlist();
+
+ return 1;
+}
+
+/*
+ * MNTv2 pathconf procedure
+ *
+ * The protocol doesn't include a status field, so Sun apparently considers
+ * it good practice to let anyone snoop on your system, even if it's
+ * pretty harmless data such as pathconf. We don't.
+ *
+ * Besides, many of the pathconf values don't make much sense on NFS volumes.
+ * FIFOs and tty device files represent devices on the *client*, so there's
+ * no point in getting the server's buffer sizes etc.
+ */
+bool_t
+mount_pathconf_2_svc(struct svc_req *rqstp, dirpath *path, ppathcnf *res)
+{
+ struct sockaddr *sap = nfs_getrpccaller(rqstp->rq_xprt);
+ struct stat stb;
+ nfs_export *exp;
+ char rpath[MAXPATHLEN+1];
+ char *p = *path;
+ char buf[INET6_ADDRSTRLEN];
+
+ memset(res, 0, sizeof(*res));
+
+ if (*p == '\0')
+ p = "/";
+
+ /* Reload /etc/exports if necessary */
+ auth_reload();
+
+ /* Resolve symlinks */
+ if (nfsd_realpath(p, rpath) != NULL) {
+ rpath[sizeof (rpath) - 1] = '\0';
+ p = rpath;
+ }
+
+ xlog(D_CALL, "Received PATHCONF(%s) request from %s", p,
+ host_ntop(sap, buf, sizeof(buf)));
+
+ /* Now authenticate the intruder... */
+ exp = auth_authenticate("pathconf", sap, p);
+ if (exp == NULL)
+ return 1;
+ else if (nfsd_path_stat(p, &stb) < 0) {
+ xlog(L_WARNING, "can't stat exported dir %s: %s",
+ p, strerror(errno));
+ return 1;
+ }
+
+ res->pc_link_max = pathconf(p, _PC_LINK_MAX);
+ res->pc_max_canon = pathconf(p, _PC_MAX_CANON);
+ res->pc_max_input = pathconf(p, _PC_MAX_INPUT);
+ res->pc_name_max = pathconf(p, _PC_NAME_MAX);
+ res->pc_path_max = pathconf(p, _PC_PATH_MAX);
+ res->pc_pipe_buf = pathconf(p, _PC_PIPE_BUF);
+ res->pc_vdisable = pathconf(p, _PC_VDISABLE);
+
+ /* Can't figure out what to do with pc_mask */
+ res->pc_mask[0] = 0;
+ res->pc_mask[1] = 0;
+
+ return 1;
+}
+
+/*
+ * We should advertise the preferred flavours first. (See RFC 2623
+ * section 2.7.) We leave that to the administrator, by advertising
+ * flavours in the order they were listed in /etc/exports. AUTH_NULL is
+ * dropped from the list to avoid backward compatibility issue with
+ * older Linux clients, who inspect the list in reversed order.
+ *
+ * XXX: It might be more helpful to rearrange these so that flavors
+ * giving more access (as determined from readonly and id-squashing
+ * options) come first. (If we decide to do that we should probably do
+ * that when reading the exports rather than here.)
+ */
+static void set_authflavors(struct mountres3_ok *ok, nfs_export *exp)
+{
+ struct sec_entry *s;
+ static int flavors[SECFLAVOR_COUNT];
+ int i = 0;
+
+ for (s = exp->m_export.e_secinfo; s->flav; s++) {
+ if (s->flav->fnum == AUTH_NULL)
+ continue;
+ flavors[i] = s->flav->fnum;
+ i++;
+ }
+ if (i == 0) {
+ /* default when there is no sec= option: */
+ i = 1;
+ flavors[0] = AUTH_UNIX;
+ }
+ ok->auth_flavors.auth_flavors_val = flavors;
+ ok->auth_flavors.auth_flavors_len = i;
+}
+
+/*
+ * NFSv3 MOUNT procedure
+ */
+bool_t
+mount_mnt_3_svc(struct svc_req *rqstp, dirpath *path, mountres3 *res)
+{
+ struct sockaddr *sap = nfs_getrpccaller(rqstp->rq_xprt);
+ struct mountres3_ok *ok = &res->mountres3_u.mountinfo;
+ char buf[INET6_ADDRSTRLEN];
+ nfs_export *exp;
+ struct nfs_fh_len *fh;
+
+ xlog(D_CALL, "Received MNT3(%s) request from %s", *path,
+ host_ntop(sap, buf, sizeof(buf)));
+
+ fh = get_rootfh(rqstp, path, &exp, &res->fhs_status, 1);
+ if (!fh)
+ return 1;
+
+ ok->fhandle.fhandle3_len = fh->fh_size;
+ ok->fhandle.fhandle3_val = (char *)fh->fh_handle;
+ set_authflavors(ok, exp);
+ return 1;
+}
+
+static struct nfs_fh_len *
+get_rootfh(struct svc_req *rqstp, dirpath *path, nfs_export **expret,
+ mountstat3 *error, int v3)
+{
+ struct sockaddr *sap = nfs_getrpccaller(rqstp->rq_xprt);
+ struct stat stb, estb;
+ nfs_export *exp;
+ struct nfs_fh_len *fh;
+ char rpath[MAXPATHLEN+1];
+ char *p = *path;
+ char buf[INET6_ADDRSTRLEN];
+
+ if (*p == '\0')
+ p = "/";
+
+ /* Reload /var/lib/nfs/etab if necessary */
+ auth_reload();
+
+ /* Resolve symlinks */
+ if (nfsd_realpath(p, rpath) != NULL) {
+ rpath[sizeof (rpath) - 1] = '\0';
+ p = rpath;
+ }
+
+ /* Now authenticate the intruder... */
+ exp = auth_authenticate("mount", sap, p);
+ if (exp == NULL) {
+ *error = MNT3ERR_ACCES;
+ return NULL;
+ }
+ if (nfsd_path_stat(p, &stb) < 0) {
+ xlog(L_WARNING, "can't stat exported dir %s: %s",
+ p, strerror(errno));
+ if (errno == ENOENT)
+ *error = MNT3ERR_NOENT;
+ else
+ *error = MNT3ERR_ACCES;
+ return NULL;
+ }
+ if (!S_ISDIR(stb.st_mode) && !S_ISREG(stb.st_mode)) {
+ xlog(L_WARNING, "%s is not a directory or regular file", p);
+ *error = MNT3ERR_NOTDIR;
+ return NULL;
+ }
+ if (nfsd_path_stat(exp->m_export.e_path, &estb) < 0) {
+ xlog(L_WARNING, "can't stat export point %s: %s",
+ p, strerror(errno));
+ *error = MNT3ERR_NOENT;
+ return NULL;
+ }
+ if (estb.st_dev != stb.st_dev
+ && !(exp->m_export.e_flags & NFSEXP_CROSSMOUNT)) {
+ xlog(L_WARNING, "request to export directory %s below nearest filesystem %s",
+ p, exp->m_export.e_path);
+ *error = MNT3ERR_ACCES;
+ return NULL;
+ }
+ if (exp->m_export.e_mountpoint &&
+ !check_is_mountpoint(exp->m_export.e_mountpoint[0]?
+ exp->m_export.e_mountpoint:
+ exp->m_export.e_path,
+ nfsd_path_lstat)) {
+ xlog(L_WARNING, "request to export an unmounted filesystem: %s",
+ p);
+ *error = MNT3ERR_NOENT;
+ return NULL;
+ }
+
+ /* This will be a static private nfs_export with just one
+ * address. We feed it to kernel then extract the filehandle,
+ */
+
+ if (cache_export(exp, p)) {
+ *error = MNT3ERR_ACCES;
+ return NULL;
+ }
+ fh = cache_get_filehandle(exp, v3?64:32, p);
+ if (fh == NULL) {
+ *error = MNT3ERR_ACCES;
+ return NULL;
+ }
+ *error = MNT_OK;
+ mountlist_add(host_ntop(sap, buf, sizeof(buf)), p);
+ if (expret)
+ *expret = exp;
+ return fh;
+}
+
+static void remove_all_clients(exportnode *e)
+{
+ struct groupnode *g, *ng;
+
+ for (g = e->ex_groups; g; g = ng) {
+ ng = g->gr_next;
+ xfree(g->gr_name);
+ xfree(g);
+ }
+ e->ex_groups = NULL;
+}
+
+static void free_exportlist(exports *elist)
+{
+ struct exportnode *e, *ne;
+
+ for (e = *elist; e != NULL; e = ne) {
+ ne = e->ex_next;
+ remove_all_clients(e);
+ xfree(e->ex_dir);
+ xfree(e);
+ }
+ *elist = NULL;
+}
+
+static void prune_clients(nfs_export *exp, struct exportnode *e)
+{
+ struct addrinfo *ai = NULL;
+ struct groupnode *c, **cp;
+
+ cp = &e->ex_groups;
+ while ((c = *cp) != NULL) {
+ if (client_gettype(c->gr_name) == MCL_FQDN
+ && (ai = host_addrinfo(c->gr_name))) {
+ if (client_check(exp->m_client, ai)) {
+ *cp = c->gr_next;
+ xfree(c->gr_name);
+ xfree(c);
+ nfs_freeaddrinfo(ai);
+ continue;
+ }
+ nfs_freeaddrinfo(ai);
+ }
+ cp = &(c->gr_next);
+ }
+}
+
+static exportnode *lookup_or_create_elist_entry(exports *elist, nfs_export *exp)
+{
+ exportnode *e;
+
+ for (e = *elist; e != NULL; e = e->ex_next) {
+ if (!strcmp(exp->m_export.e_path, e->ex_dir))
+ return e;
+ }
+ e = xmalloc(sizeof(*e));
+ e->ex_next = *elist;
+ e->ex_groups = NULL;
+ e->ex_dir = xstrdup(exp->m_export.e_path);
+ *elist = e;
+ return e;
+}
+
+static void insert_group(struct exportnode *e, char *newname)
+{
+ struct groupnode *g;
+
+ for (g = e->ex_groups; g; g = g->gr_next)
+ if (!strcmp(g->gr_name, newname))
+ return;
+
+ g = xmalloc(sizeof(*g));
+ g->gr_name = xstrdup(newname);
+ g->gr_next = e->ex_groups;
+ e->ex_groups = g;
+}
+
+static exports
+get_exportlist(void)
+{
+ static exports elist = NULL;
+ struct exportnode *e;
+ nfs_export *exp;
+ int i;
+ static unsigned int ecounter;
+ unsigned int acounter;
+
+ acounter = auth_reload();
+ if (elist && acounter == ecounter)
+ return elist;
+
+ ecounter = acounter;
+
+ free_exportlist(&elist);
+
+ for (i = 0; i < MCL_MAXTYPES; i++) {
+ for (exp = exportlist[i].p_head; exp; exp = exp->m_next) {
+ /* Don't show pseudo exports */
+ if (exp->m_export.e_flags & NFSEXP_V4ROOT)
+ continue;
+ e = lookup_or_create_elist_entry(&elist, exp);
+
+ /* exports to "*" absorb any others */
+ if (i == MCL_ANONYMOUS && e->ex_groups) {
+ remove_all_clients(e);
+ continue;
+ }
+ /* non-FQDN's absorb FQDN's they contain: */
+ if (i != MCL_FQDN && e->ex_groups)
+ prune_clients(exp, e);
+
+ if (exp->m_export.e_hostname[0] != '\0')
+ insert_group(e, exp->m_export.e_hostname);
+ }
+ }
+
+ return elist;
+}
+
+int vers;
+int port = 0;
+int descriptors = 0;
+
+inline static void
+read_mountd_conf(char **argv)
+{
+ char *s;
+ int ttl;
+
+ conf_init_file(NFS_CONFFILE);
+
+ xlog_set_debug("mountd");
+ manage_gids = conf_get_bool("mountd", "manage-gids", manage_gids);
+ descriptors = conf_get_num("mountd", "descriptors", descriptors);
+ port = conf_get_num("mountd", "port", port);
+ num_threads = conf_get_num("mountd", "threads", num_threads);
+ reverse_resolve = conf_get_bool("mountd", "reverse-lookup", reverse_resolve);
+ ha_callout_prog = conf_get_str("mountd", "ha-callout");
+ if (conf_get_bool("mountd", "cache-use-ipaddr", 0))
+ use_ipaddr = 2;
+
+ s = conf_get_str("mountd", "state-directory-path");
+ if (s && !state_setup_basedir(argv[0], s))
+ exit(1);
+
+ /* NOTE: following uses "nfsd" section of nfs.conf !!!! */
+ if (conf_get_bool("nfsd", "udp", NFSCTL_UDPISSET(_rpcprotobits)))
+ NFSCTL_UDPSET(_rpcprotobits);
+ else
+ NFSCTL_UDPUNSET(_rpcprotobits);
+ if (conf_get_bool("nfsd", "tcp", NFSCTL_TCPISSET(_rpcprotobits)))
+ NFSCTL_TCPSET(_rpcprotobits);
+ else
+ NFSCTL_TCPUNSET(_rpcprotobits);
+ for (vers = 2; vers <= 4; vers++) {
+ char tag[20];
+ sprintf(tag, "vers%d", vers);
+ if (conf_get_bool("nfsd", tag, NFSCTL_VERISSET(nfs_version, vers)))
+ NFSCTL_VERSET(nfs_version, vers);
+ else
+ NFSCTL_VERUNSET(nfs_version, vers);
+ }
+
+ ttl = conf_get_num("mountd", "ttl", default_ttl);
+ if (ttl > 0)
+ default_ttl = ttl;
+}
+
+int
+main(int argc, char **argv)
+{
+ char *progname;
+ unsigned int listeners = 0;
+ int foreground = 0;
+ int c;
+ int ttl;
+ struct sigaction sa;
+ struct rlimit rlim;
+
+ /* Set the basename */
+ if ((progname = strrchr(argv[0], '/')) != NULL)
+ progname++;
+ else
+ progname = argv[0];
+
+ /* Initialize logging. */
+ xlog_open(progname);
+
+ /* Read in config setting */
+ read_mountd_conf(argv);
+
+ /* Parse the command line options and arguments. */
+ opterr = 0;
+ while ((c = getopt_long(argc, argv, shortopts, longopts, NULL)) != EOF)
+ switch (c) {
+ case 'g':
+ manage_gids = 1;
+ break;
+ case 'o':
+ descriptors = atoi(optarg);
+ if (descriptors <= 0) {
+ fprintf(stderr, "%s: bad descriptors: %s\n",
+ progname, optarg);
+ usage(progname, 1);
+ }
+ break;
+ case 'F':
+ foreground = 1;
+ break;
+ case 'd':
+ xlog_sconfig(optarg, 1);
+ break;
+ case 'H': /* PRC: specify a high-availability callout program */
+ ha_callout_prog = optarg;
+ break;
+ case 'h':
+ usage(progname, 0);
+ break;
+ case 'P': /* XXX for nfs-server compatibility */
+ case 'p':
+ port = atoi(optarg);
+ if (port <= 0 || port > 65535) {
+ fprintf(stderr, "%s: bad port number: %s\n",
+ progname, optarg);
+ usage(progname, 1);
+ }
+ break;
+ case 'N':
+ vers = atoi(optarg);
+ if (vers < 2 || vers > 4) {
+ fprintf(stderr, "%s: bad version number: %s\n",
+ argv[0], optarg);
+ usage(argv[0], 1);
+ }
+ nfs_version &= ~NFSVERSBIT(vers);
+ break;
+ case 'n':
+ NFSCTL_TCPUNSET(_rpcprotobits);
+ break;
+ case 'r':
+ reverse_resolve = 1;
+ break;
+ case 's':
+ if (!state_setup_basedir(argv[0], optarg))
+ exit(1);
+ break;
+ case 't':
+ num_threads = atoi (optarg);
+ break;
+ case 'V':
+ vers = atoi(optarg);
+ if (vers < 2 || vers > 4) {
+ fprintf(stderr, "%s: bad version number: %s\n",
+ argv[0], optarg);
+ usage(argv[0], 1);
+ }
+ nfs_version |= NFSVERSBIT(vers);
+ break;
+ case 'v':
+ printf("%s version " VERSION "\n", progname);
+ exit(0);
+ case 'u':
+ NFSCTL_UDPUNSET(_rpcprotobits);
+ break;
+ case 'l':
+ xlog_sconfig("auth", 1);
+ break;
+ case 'i':
+ use_ipaddr = 2;
+ break;
+ case 'T':
+ ttl = atoi(optarg);
+ if (ttl <= 0) {
+ fprintf(stderr, "%s: bad ttl number of seconds: %s\n",
+ argv[0], optarg);
+ usage(argv[0], 1);
+ }
+ default_ttl = ttl;
+ break;
+ case 0:
+ break;
+ case '?':
+ default:
+ usage(progname, 1);
+ }
+
+ /* No more arguments allowed. */
+ if (optind != argc || !version_any()) {
+ fprintf(stderr, "%s: No protocol versions specified!\n", progname);
+ usage(progname, 1);
+ }
+ if (!setup_state_path_names(progname, ETAB, ETABTMP, ETABLCK, &etab))
+ return 1;
+ if (!setup_state_path_names(progname, RMTAB, RMTABTMP, RMTABLCK, &rmtab))
+ return 1;
+
+ if (getrlimit (RLIMIT_NOFILE, &rlim) != 0)
+ fprintf(stderr, "%s: getrlimit (RLIMIT_NOFILE) failed: %s\n",
+ progname, strerror(errno));
+ else {
+ /* glibc sunrpc code dies if getdtablesize > FD_SETSIZE */
+ if ((descriptors == 0 && rlim.rlim_cur > FD_SETSIZE) ||
+ descriptors > FD_SETSIZE)
+ descriptors = FD_SETSIZE;
+ if (descriptors) {
+ rlim.rlim_cur = descriptors;
+ if (setrlimit (RLIMIT_NOFILE, &rlim) != 0) {
+ fprintf(stderr, "%s: setrlimit (RLIMIT_NOFILE) failed: %s\n",
+ progname, strerror(errno));
+ exit(1);
+ }
+ }
+ }
+ if (!foreground) xlog_stderr(0);
+
+ sa.sa_handler = SIG_IGN;
+ sa.sa_flags = 0;
+ sigemptyset(&sa.sa_mask);
+ sigaction(SIGHUP, &sa, NULL);
+ sigaction(SIGINT, &sa, NULL);
+ sigaction(SIGTERM, &sa, NULL);
+ sigaction(SIGPIPE, &sa, NULL);
+ /* WARNING: the following works on Linux and SysV, but not BSD! */
+ sigaction(SIGCHLD, &sa, NULL);
+
+ unregister_services();
+ if (version2()) {
+ listeners += nfs_svc_create("mountd", MOUNTPROG,
+ MOUNTVERS, mount_dispatch, port);
+ listeners += nfs_svc_create("mountd", MOUNTPROG,
+ MOUNTVERS_POSIX, mount_dispatch, port);
+ }
+ if (version3())
+ listeners += nfs_svc_create("mountd", MOUNTPROG,
+ MOUNTVERS_NFSV3, mount_dispatch, port);
+ if (version23() && listeners == 0)
+ xlog(L_WARNING, "mountd: No V2 or V3 listeners created!");
+
+ sa.sa_handler = killer;
+ sigaction(SIGINT, &sa, NULL);
+ sigaction(SIGTERM, &sa, NULL);
+ sa.sa_handler = sig_hup;
+ sigaction(SIGHUP, &sa, NULL);
+
+ if (!foreground) {
+ /* We first fork off a child. */
+ if ((c = fork()) > 0)
+ exit(0);
+ if (c < 0) {
+ xlog(L_FATAL, "mountd: cannot fork: %s\n",
+ strerror(errno));
+ }
+ /* Now we remove ourselves from the foreground.
+ Redirect stdin/stdout/stderr first. */
+ {
+ int fd = open("/dev/null", O_RDWR);
+ (void) dup2(fd, 0);
+ (void) dup2(fd, 1);
+ (void) dup2(fd, 2);
+ if (fd > 2) (void) close(fd);
+ }
+ setsid();
+ }
+
+ /* silently bounds check num_threads */
+ if (foreground)
+ num_threads = 1;
+ else if (num_threads < 1)
+ num_threads = 1;
+ else if (num_threads > MAX_THREADS)
+ num_threads = MAX_THREADS;
+
+ /* Open cache channel files BEFORE forking so each upcall is
+ * only handled by one thread. Kernel provides locking for both
+ * read and write.
+ */
+ cache_open();
+
+ if (cache_fork_workers("mountd", num_threads) == 0) {
+ /* We forked, waited, and now need to clean up */
+ unregister_services();
+ cleanup_lockfiles();
+ free_state_path_names(&etab);
+ free_state_path_names(&rmtab);
+ xlog(L_NOTICE, "mountd: no more workers, exiting\n");
+ exit(0);
+ }
+
+ nfsd_path_init();
+ v4clients_init();
+
+ xlog(L_NOTICE, "Version " VERSION " starting");
+ my_svc_run();
+
+ xlog(L_ERROR, "RPC service loop terminated unexpectedly. Exiting...\n");
+ unregister_services();
+ free_state_path_names(&etab);
+ free_state_path_names(&rmtab);
+ exit(1);
+}
+
+static void
+usage(const char *prog, int n)
+{
+ fprintf(stderr,
+"Usage: %s [-F|--foreground] [-h|--help] [-v|--version] [-d kind|--debug kind]\n"
+" [-l|--log-auth] [-i|--cache-use-ipaddr] [-T|--ttl ttl]\n"
+" [-o num|--descriptors num]\n"
+" [-p|--port port] [-V version|--nfs-version version]\n"
+" [-N version|--no-nfs-version version] [-n|--no-tcp]\n"
+" [-H prog |--ha-callout prog] [-r |--reverse-lookup]\n"
+" [-s|--state-directory-path path] [-g|--manage-gids]\n"
+" [-t num|--num-threads=num] [-u|--no-udp]\n", prog);
+ exit(n);
+}
diff --git a/utils/mountd/mountd.h b/utils/mountd/mountd.h
new file mode 100644
index 0000000..bd5c957
--- /dev/null
+++ b/utils/mountd/mountd.h
@@ -0,0 +1,54 @@
+/*
+ * utils/mountd/mountd.h
+ *
+ * Declarations for mountd.
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef MOUNTD_H
+#define MOUNTD_H
+
+#include <rpc/rpc.h>
+#include <rpc/svc.h>
+#include "nfslib.h"
+#include "exportfs.h"
+#include "mount.h"
+
+union mountd_arguments {
+ dirpath dirpath;
+};
+
+union mountd_results {
+ fhstatus fstatus;
+ mountlist mountlist;
+ exports exports;
+};
+
+/*
+ * Global Function prototypes.
+ */
+bool_t mount_null_1_svc(struct svc_req *, void *, void *);
+bool_t mount_mnt_1_svc(struct svc_req *, dirpath *, fhstatus *);
+bool_t mount_dump_1_svc(struct svc_req *, void *, mountlist *);
+bool_t mount_umnt_1_svc(struct svc_req *, dirpath *, void *);
+bool_t mount_umntall_1_svc(struct svc_req *, void *, void *);
+bool_t mount_export_1_svc(struct svc_req *, void *, exports *);
+bool_t mount_exportall_1_svc(struct svc_req *, void *, exports *);
+bool_t mount_pathconf_2_svc(struct svc_req *, dirpath *, ppathcnf *);
+bool_t mount_mnt_3_svc(struct svc_req *, dirpath *, mountres3 *);
+
+void mount_dispatch(struct svc_req *, SVCXPRT *);
+void auth_init(void);
+unsigned int auth_reload(void);
+nfs_export * auth_authenticate(const char *what,
+ const struct sockaddr *caller,
+ const char *path);
+void auth_export(nfs_export *exp);
+
+void mountlist_add(char *host, const char *path);
+void mountlist_del(char *host, const char *path);
+void mountlist_del_all(const struct sockaddr *sap);
+mountlist mountlist_list(void);
+
+#endif /* MOUNTD_H */
diff --git a/utils/mountd/mountd.man b/utils/mountd/mountd.man
new file mode 100644
index 0000000..a206a3e
--- /dev/null
+++ b/utils/mountd/mountd.man
@@ -0,0 +1,362 @@
+.\"@(#)rpc.mountd.8"
+.\"
+.\" Copyright (C) 1999 Olaf Kirch <okir@monad.swb.de>
+.\" Modified by Paul Clements, 2004.
+.\"
+.TH rpc.mountd 8 "31 Dec 2009"
+.SH NAME
+rpc.mountd \- NFS mount daemon
+.SH SYNOPSIS
+.BI "/usr/sbin/rpc.mountd [" options "]"
+.SH DESCRIPTION
+The
+.B rpc.mountd
+daemon implements the server side of the NFS MOUNT protocol,
+an NFS side protocol used by NFS version 2 [RFC1094] and NFS version 3 [RFC1813].
+It also responds to requests from the Linux kernel to authenticate
+clients and provides details of access permissions.
+.PP
+The NFS server
+.RI ( nfsd )
+maintains a cache of authentication and authorization information which
+is used to identify the source of each request, and then what access
+permissions that source has to any local filesystem. When required
+information is not found in the cache, the server sends a request to
+.B mountd
+to fill in the missing information. Mountd uses a table of information
+stored in
+.B /var/lib/nfs/etab
+and maintained by
+.BR exportfs (8),
+possibly based on the contents of
+.BR exports (5),
+to respond to each request.
+.SS Mounting exported NFS File Systems
+The NFS MOUNT protocol has several procedures.
+The most important of these are
+MNT (mount an export) and
+UMNT (unmount an export).
+.PP
+A MNT request has two arguments: an explicit argument that
+contains the pathname of the root directory of the export to be mounted,
+and an implicit argument that is the sender's IP address.
+.PP
+When receiving a MNT request from an NFS client,
+.B rpc.mountd
+checks both the pathname and the sender's IP address against its export table.
+If the sender is permitted to access the requested export,
+.B rpc.mountd
+returns an NFS file handle for the export's root directory to the client.
+The client can then use the root file handle and NFS LOOKUP requests
+to navigate the directory structure of the export.
+.SS The rmtab File
+The
+.B rpc.mountd
+daemon registers every successful MNT request by adding an entry to the
+.I /var/lib/nfs/rmtab
+file.
+When receivng a UMNT request from an NFS client,
+.B rpc.mountd
+simply removes the matching entry from
+.IR /var/lib/nfs/rmtab ,
+as long as the access control list for that export allows that sender
+to access the export.
+.PP
+Clients can discover the list of file systems an NFS server is
+currently exporting, or the list of other clients that have mounted
+its exports, by using the
+.BR showmount (8)
+command.
+.BR showmount (8)
+uses other procedures in the NFS MOUNT protocol to report information
+about the server's exported file systems.
+.PP
+Note, however, that there is little to guarantee that the contents of
+.I /var/lib/nfs/rmtab
+are accurate.
+A client may continue accessing an export even after invoking UMNT.
+If the client reboots without sending a UMNT request, stale entries
+remain for that client in
+.IR /var/lib/nfs/rmtab .
+.SS Mounting File Systems with NFSv4
+Version 4 (and later) of NFS does not use a separate NFS MOUNT
+protocol. Instead mounting is performed using regular NFS requests
+handled by the NFS server in the Linux kernel
+.RI ( nfsd ).
+Consequently
+.I /var/lib/nfs/rmtab
+is not updated to reflect any NFSv4 activity.
+.SH OPTIONS
+.TP
+.B \-d kind " or " \-\-debug kind
+Turn on debugging. Valid kinds are: all, auth, call, general and parse.
+.TP
+.BR \-l " or " \-\-log\-auth
+Enable logging of responses to authentication and access requests from
+nfsd. Each response is then cached by the kernel for 30 minutes (or as set by
+.B \-\-ttl
+below), and will be refreshed after 15 minutes (half the ttl time) if
+the relevant client remains active.
+Note that
+.B -l
+is equivalent to
+.B "-d auth"
+and so can be enabled in
+.B /etc/nfs.conf
+with
+.B "\[dq]debug = auth\[dq]"
+in the
+.B "[mountd]"
+section.
+.IP
+.B rpc.mountd
+will always log authentication responses to MOUNT requests when NFSv3 is
+used, but to get similar logs for NFSv4, this option is required.
+.TP
+.BR \-i " or " \-\-cache\-use\-ipaddr
+Normally each client IP address is matched against each host identifier
+(name, wildcard, netgroup etc) found in
+.B /etc/exports
+and a combined identity is formed from all matching identifiers.
+Often many clients will map to the same combined identity so performing
+this mapping reduces the number of distinct access details that the
+kernel needs to store.
+Specifying the
+.B \-i
+option suppresses this mapping so that access to each filesystem is
+requested and cached separately for each client IP address. Doing this
+can increase the burden of updating the cache slightly, but can make the
+log messages produced by the
+.B -l
+option easier to read.
+.TP
+.B \-T " or " \-\-ttl
+Provide a time-to-live (TTL) for cached information given to the kernel.
+The kernel will normally request an update if the information is needed
+after half of this time has expired. Increasing the provided number,
+which is in seconds, reduces the rate of cache update requests, and this
+is particularly noticeable when these requests are logged with
+.BR \-l .
+However increasing also means that changes to hostname to address
+mappings can take longer to be noticed.
+The default TTL is 1800 (30 minutes).
+.TP
+.B \-F " or " \-\-foreground
+Run in foreground (do not daemonize)
+.TP
+.B \-h " or " \-\-help
+Display usage message.
+.TP
+.B \-o num " or " \-\-descriptors num
+Set the limit of the number of open file descriptors to num. The
+default is to leave the limit unchanged.
+.TP
+.B \-N mountd-version " or " \-\-no-nfs-version mountd-version
+This option can be used to request that
+.B rpc.mountd
+do not offer certain versions of NFS. The current version of
+.B rpc.mountd
+can support both NFS version 2, 3 and 4. If the
+either one of these version should not be offered,
+.B rpc.mountd
+must be invoked with the option
+.B "\-\-no-nfs-version <vers>" .
+.TP
+.B \-n " or " \-\-no-tcp
+Don't advertise TCP for mount.
+.TP
+.B \-p num " or " \-P num " or " \-\-port num
+Specifies the port number used for RPC listener sockets.
+If this option is not specified,
+.B rpc.mountd
+will try to consult
+.IR /etc/services ,
+if gets port succeed, set the same port for all listener socket,
+otherwise chooses a random ephemeral port for each listener socket.
+.IP
+This option can be used to fix the port value of
+.BR rpc.mountd 's
+listeners when NFS MOUNT requests must traverse a firewall
+between clients and servers.
+.TP
+.B \-H " prog or " \-\-ha-callout prog
+Specify a high availability callout program.
+This program receives callouts for all MOUNT and UNMOUNT requests.
+This allows
+.B rpc.mountd
+to be used in a High Availability NFS (HA-NFS) environment.
+.IP
+The callout program is run with 4 arguments.
+The first is
+.B mount
+or
+.B unmount
+depending on the reason for the callout.
+The second will be the name of the client performing the mount.
+The third will be the path that the client is mounting.
+The last is the number of concurrent mounts that we believe the client
+has of that path.
+.IP
+This callout is not needed with 2.6 and later kernels.
+Instead, mount the nfsd filesystem on
+.IR /proc/fs/nfsd .
+.TP
+.BI "\-s," "" " \-\-state\-directory\-path " directory
+Specify a directory in which to place state information (etab and rmtab).
+If this option is not specified the default of
+.I /var/lib/nfs
+is used.
+.TP
+.BI "\-r," "" " \-\-reverse\-lookup"
+.B rpc.mountd
+tracks IP addresses in the
+.I rmtab
+file. When a DUMP request is made (by
+someone running
+.BR "showmount -a" ,
+for instance), it returns IP addresses instead
+of hostnames by default. This option causes
+.B rpc.mountd
+to perform a reverse lookup on each IP address and return that hostname instead.
+Enabling this can have a substantial negative effect on performance
+in some situations.
+.TP
+.BR "\-t N" " or " "\-\-num\-threads=N " or " \-\-num\-threads N "
+This option specifies the number of worker threads that rpc.mountd
+spawns. The default is 1 thread, which is probably enough. More
+threads are usually only needed for NFS servers which need to handle
+mount storms of hundreds of NFS mounts in a few seconds, or when
+your DNS server is slow or unreliable.
+.TP
+.B \-u " or " \-\-no-udp
+Don't advertise UDP for mounting
+.TP
+.B \-V version " or " \-\-nfs-version version
+This option can be used to request that
+.B rpc.mountd
+offer certain versions of NFS. The current version of
+.B rpc.mountd
+can support both NFS version 2 and the newer version 3.
+.TP
+.B \-v " or " \-\-version
+Print the version of
+.B rpc.mountd
+and exit.
+.TP
+.B \-g " or " \-\-manage-gids
+Accept requests from the kernel to map user id numbers into lists of
+group id numbers for use in access control. An NFS request will
+normally (except when using Kerberos or other cryptographic
+authentication) contains a user-id and a list of group-ids. Due to a
+limitation in the NFS protocol, at most 16 groups ids can be listed.
+If you use the
+.B \-g
+flag, then the list of group ids received from the client will be
+replaced by a list of group ids determined by an appropriate lookup on
+the server. Note that the 'primary' group id is not affected so a
+.B newgroup
+command on the client will still be effective. This function requires
+a Linux Kernel with version at least 2.6.21.
+
+.SH CONFIGURATION FILE
+Many of the options that can be set on the command line can also be
+controlled through values set in the
+.B [mountd]
+or, in some cases, the
+.B [nfsd]
+sections of the
+.I /etc/nfs.conf
+configuration file.
+Values recognized in the
+.B [mountd]
+section include
+.BR manage-gids ,
+.BR cache\-use\-ipaddr ,
+.BR descriptors ,
+.BR port ,
+.BR threads ,
+.BR ttl ,
+.BR reverse-lookup ", and"
+.BR state-directory-path ,
+.B ha-callout
+which each have the same effect as the option with the same name.
+
+The values recognized in the
+.B [nfsd]
+section include
+.BR TCP ,
+.BR UDP ,
+.BR vers3 ", and"
+.B vers4
+which each have the same meaning as given by
+.BR rpc.nfsd (8).
+
+.SH TCP_WRAPPERS SUPPORT
+You can protect your
+.B rpc.mountd
+listeners using the
+.B tcp_wrapper
+library or
+.BR iptables (8).
+.PP
+Note that the
+.B tcp_wrapper
+library supports only IPv4 networking.
+.PP
+Add the hostnames of NFS peers that are allowed to access
+.B rpc.mountd
+to
+.IR /etc/hosts.allow .
+Use the daemon name
+.B mountd
+even if the
+.B rpc.mountd
+binary has a different name.
+.PP
+Hostnames used in either access file will be ignored when
+they can not be resolved into IP addresses.
+For further information see the
+.BR tcpd (8)
+and
+.BR hosts_access (5)
+man pages.
+.SS IPv6 and TI-RPC support
+TI-RPC is a pre-requisite for supporting NFS on IPv6.
+If TI-RPC support is built into
+.BR rpc.mountd ,
+it attempts to start listeners on network transports marked 'visible' in
+.IR /etc/netconfig .
+As long as at least one network transport listener starts successfully,
+.B rpc.mountd
+will operate.
+.SH FILES
+.TP 2.5i
+.I /etc/exports
+input file for
+.BR exportfs ,
+listing exports, export options, and access control lists
+.TP 2.5i
+.I /var/lib/nfs/rmtab
+table of clients accessing server's exports
+.SH SEE ALSO
+.BR exportfs (8),
+.BR exports (5),
+.BR showmount (8),
+.BR rpc.nfsd (8),
+.BR rpc.rquotad (8),
+.BR nfs (5),
+.BR nfs.conf (5),
+.BR tcpd (8),
+.BR hosts_access (5),
+.BR iptables (8),
+.BR netconfig (5)
+.sp
+RFC 1094 - "NFS: Network File System Protocol Specification"
+.br
+RFC 1813 - "NFS Version 3 Protocol Specification"
+.br
+RFC 7530 - "Network File System (NFS) Version 4 Protocol"
+.br
+RFC 8881 - "Network File System (NFS) Version 4 Minor Version 1 Protocol"
+.SH AUTHOR
+Olaf Kirch, H. J. Lu, G. Allan Morris III, and a host of others.
diff --git a/utils/mountd/rmtab.c b/utils/mountd/rmtab.c
new file mode 100644
index 0000000..752fdb6
--- /dev/null
+++ b/utils/mountd/rmtab.c
@@ -0,0 +1,254 @@
+/*
+ * utils/mountd/rmtab.c
+ *
+ * Manage the rmtab file for mountd.
+ *
+ * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+
+#include "misc.h"
+#include "exportfs.h"
+#include "xio.h"
+#include "mountd.h"
+#include "ha-callout.h"
+
+#include <limits.h> /* PATH_MAX */
+#include <errno.h>
+
+extern int reverse_resolve;
+
+/* If new path is a link do not destroy it but place the
+ * file where the link points.
+ */
+
+static int
+slink_safe_rename(const char * oldpath, const char * newpath)
+{
+ int r;
+ struct stat s;
+ char slink_path[PATH_MAX];
+ const char *real_newpath = newpath;
+
+ if ((lstat(newpath, &s) == 0) && S_ISLNK(s.st_mode)) {
+ /* New path is a symbolic link, do not destroy but follow */
+ if ((r = readlink(newpath, slink_path, PATH_MAX - 1)) == -1)
+ return -1;
+ slink_path[r] = '\0';
+ real_newpath = slink_path;
+ }
+
+ return rename(oldpath, real_newpath);
+}
+
+void
+mountlist_add(char *host, const char *path)
+{
+ struct rmtabent xe;
+ struct rmtabent *rep;
+ int lockid;
+ long pos;
+
+ if ((lockid = xflock(rmtab.lockfn, "a")) < 0)
+ return;
+ setrmtabent("r+");
+ while ((rep = getrmtabent(1, &pos)) != NULL) {
+ if (strcmp (rep->r_client,
+ host) == 0
+ && strcmp(rep->r_path, path) == 0) {
+ rep->r_count++;
+ /* PRC: do the HA callout: */
+ ha_callout("mount", rep->r_client, rep->r_path, rep->r_count);
+ putrmtabent(rep, &pos);
+ endrmtabent();
+ xfunlock(lockid);
+ return;
+ }
+ }
+ endrmtabent();
+ strncpy(xe.r_client, host,
+ sizeof (xe.r_client) - 1);
+ xe.r_client [sizeof (xe.r_client) - 1] = '\0';
+ strncpy(xe.r_path, path, sizeof (xe.r_path) - 1);
+ xe.r_path [sizeof (xe.r_path) - 1] = '\0';
+ xe.r_count = 1;
+ if (setrmtabent("a")) {
+ /* PRC: do the HA callout: */
+ ha_callout("mount", xe.r_client, xe.r_path, xe.r_count);
+ putrmtabent(&xe, NULL);
+ endrmtabent();
+ }
+ xfunlock(lockid);
+}
+
+void
+mountlist_del(char *hname, const char *path)
+{
+ struct rmtabent *rep;
+ FILE *fp;
+ int lockid;
+ int match;
+
+ if ((lockid = xflock(rmtab.lockfn, "w")) < 0)
+ return;
+ if (!setrmtabent("r")) {
+ xfunlock(lockid);
+ return;
+ }
+ if (!(fp = fsetrmtabent(rmtab.tmpfn, "w"))) {
+ endrmtabent();
+ xfunlock(lockid);
+ return;
+ }
+ while ((rep = getrmtabent(1, NULL)) != NULL) {
+ match = !strcmp (rep->r_client, hname)
+ && !strcmp(rep->r_path, path);
+ if (match) {
+ rep->r_count--;
+ /* PRC: do the HA callout: */
+ ha_callout("unmount", rep->r_client, rep->r_path, rep->r_count);
+ }
+ if (!match || rep->r_count)
+ fputrmtabent(fp, rep, NULL);
+ }
+ if (slink_safe_rename(rmtab.tmpfn, rmtab.statefn) < 0) {
+ xlog(L_ERROR, "couldn't rename %s to %s",
+ rmtab.tmpfn, rmtab.statefn);
+ }
+ endrmtabent(); /* close & unlink */
+ fendrmtabent(fp);
+ xfunlock(lockid);
+}
+
+void
+mountlist_del_all(const struct sockaddr *sap)
+{
+ char *hostname;
+ struct rmtabent *rep;
+ FILE *fp;
+ int lockid;
+
+ if ((lockid = xflock(rmtab.lockfn, "w")) < 0)
+ return;
+ hostname = host_canonname(sap);
+ if (hostname == NULL) {
+ char buf[INET6_ADDRSTRLEN];
+ xlog(L_ERROR, "can't get hostname of %s",
+ host_ntop(sap, buf, sizeof(buf)));
+ goto out_unlock;
+ }
+
+ if (!setrmtabent("r"))
+ goto out_free;
+
+ if (!(fp = fsetrmtabent(rmtab.tmpfn, "w")))
+ goto out_close;
+
+ while ((rep = getrmtabent(1, NULL)) != NULL) {
+ if (strcmp(rep->r_client, hostname) == 0 &&
+ auth_authenticate("umountall", sap, rep->r_path) != NULL)
+ continue;
+ fputrmtabent(fp, rep, NULL);
+ }
+ if (slink_safe_rename(rmtab.tmpfn, rmtab.statefn) < 0) {
+ xlog(L_ERROR, "couldn't rename %s to %s",
+ rmtab.tmpfn, rmtab.statefn);
+ }
+ fendrmtabent(fp);
+out_close:
+ endrmtabent(); /* close & unlink */
+out_free:
+ free(hostname);
+out_unlock:
+ xfunlock(lockid);
+}
+
+static void
+mountlist_freeall(mountlist list)
+{
+ while (list != NULL) {
+ mountlist m = list;
+ list = m->ml_next;
+ free(m->ml_hostname);
+ free(m->ml_directory);
+ free(m);
+ }
+}
+
+mountlist
+mountlist_list(void)
+{
+ static mountlist mlist = NULL;
+ static time_t last_mtime = 0;
+ mountlist m;
+ struct rmtabent *rep;
+ struct stat stb;
+ int lockid;
+
+ if ((lockid = xflock(rmtab.lockfn, "r")) < 0)
+ return NULL;
+ if (stat(rmtab.statefn, &stb) < 0) {
+ xlog(L_ERROR, "can't stat %s: %s",
+ rmtab.statefn, strerror(errno));
+ xfunlock(lockid);
+ return NULL;
+ }
+ if (stb.st_mtime != last_mtime) {
+ mountlist_freeall(mlist);
+ mlist = NULL;
+ last_mtime = stb.st_mtime;
+
+ setrmtabent("r");
+ while ((rep = getrmtabent(1, NULL)) != NULL) {
+ m = calloc(1, sizeof(*m));
+ if (m == NULL) {
+ mountlist_freeall(mlist);
+ mlist = NULL;
+ xlog(L_ERROR, "%s: memory allocation failed",
+ __func__);
+ break;
+ }
+
+ if (reverse_resolve) {
+ struct addrinfo *ai;
+ ai = host_pton(rep->r_client);
+ if (ai != NULL) {
+ m->ml_hostname = host_canonname(ai->ai_addr);
+ nfs_freeaddrinfo(ai);
+ }
+ }
+ if (m->ml_hostname == NULL)
+ m->ml_hostname = strdup(rep->r_client);
+
+ m->ml_directory = strdup(rep->r_path);
+
+ if (m->ml_hostname == NULL || m->ml_directory == NULL) {
+ free(m->ml_hostname);
+ free(m->ml_directory);
+ free(m);
+ mountlist_freeall(mlist);
+ mlist = NULL;
+ xlog(L_ERROR, "%s: memory allocation failed",
+ __func__);
+ break;
+ }
+
+ m->ml_next = mlist;
+ mlist = m;
+ }
+ endrmtabent();
+ }
+ xfunlock(lockid);
+
+ return mlist;
+}
diff --git a/utils/mountd/svc_run.c b/utils/mountd/svc_run.c
new file mode 100644
index 0000000..2aaf375
--- /dev/null
+++ b/utils/mountd/svc_run.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 1984 Sun Microsystems, Inc.
+ * Based on svc_run.c from statd which claimed:
+ * Modified by Jeffrey A. Uphoff, 1995, 1997-1999.
+ * Modified by Olaf Kirch, 1996.
+ *
+ */
+
+/*
+ * Copyright (c) 2009, Sun Microsystems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * - 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.
+ * - Neither the name of Sun Microsystems, Inc. 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
+ */
+
+/*
+ * Allow svc_run to listen to other file descriptors as well
+ */
+
+/*
+ * This is the RPC server side idle loop.
+ * Wait for input, call server program.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <sys/types.h>
+#include <rpc/rpc.h>
+#include "xlog.h"
+#include <errno.h>
+#include <time.h>
+
+#ifdef HAVE_LIBTIRPC
+#include <rpc/rpc_com.h>
+#endif
+#include "export.h"
+
+void my_svc_run(void);
+
+#if defined(__GLIBC__) && LONG_MAX != INT_MAX
+/* bug in glibc 2.3.6 and earlier, we need
+ * our own svc_getreqset
+ */
+static void
+my_svc_getreqset (fd_set *readfds)
+{
+ fd_mask mask;
+ fd_mask *maskp;
+ int setsize;
+ int sock;
+ int bit;
+
+ setsize = _rpc_dtablesize ();
+ if (setsize > FD_SETSIZE)
+ setsize = FD_SETSIZE;
+ maskp = readfds->fds_bits;
+ for (sock = 0; sock < setsize; sock += NFDBITS)
+ for (mask = *maskp++;
+ (bit = ffsl (mask));
+ mask ^= (1L << (bit - 1)))
+ svc_getreq_common (sock + bit - 1);
+}
+#define svc_getreqset my_svc_getreqset
+
+#endif
+
+/*
+ * The heart of the server. A crib from libc for the most part...
+ */
+void
+my_svc_run(void)
+{
+ fd_set readfds;
+ int selret;
+
+ for (;;) {
+ readfds = svc_fdset;
+ selret = cache_process(&readfds);
+ if (selret < 0) {
+ xlog(L_ERROR, "my_svc_run() - select: %m");
+ return;
+ }
+ if (selret)
+ svc_getreqset(&readfds);
+ }
+}