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-rw-r--r--usr.sbin/nfscbd/nfscbd.c373
1 files changed, 0 insertions, 373 deletions
diff --git a/usr.sbin/nfscbd/nfscbd.c b/usr.sbin/nfscbd/nfscbd.c
deleted file mode 100644
index ba09311..0000000
--- a/usr.sbin/nfscbd/nfscbd.c
+++ /dev/null
@@ -1,373 +0,0 @@
-/*-
- * Copyright (c) 2009 Rick Macklem, University of Guelph
- * 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.
- *
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/ioctl.h>
-#include <sys/linker.h>
-#include <sys/module.h>
-#include <sys/mount.h>
-#include <sys/socket.h>
-#include <sys/socketvar.h>
-#include <sys/stat.h>
-#include <sys/ucred.h>
-#include <sys/uio.h>
-#include <sys/vnode.h>
-#include <sys/wait.h>
-
-#include <nfs/nfssvc.h>
-
-#include <rpc/rpc.h>
-
-#include <fs/nfs/rpcv2.h>
-#include <fs/nfs/nfsproto.h>
-#include <fs/nfs/nfskpiport.h>
-#include <fs/nfs/nfs.h>
-
-#include <err.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <grp.h>
-#include <netdb.h>
-#include <pwd.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <syslog.h>
-#include <unistd.h>
-
-/* Global defs */
-#ifdef DEBUG
-#define syslog(e, s) fprintf(stderr,(s))
-int debug = 1;
-#else
-int debug = 0;
-#endif
-
-pid_t children;
-
-static void nonfs(int);
-static void reapchild(int);
-static void usage(void);
-static void cleanup(int);
-static void child_cleanup(int);
-static void nfscbd_exit(int);
-static void killchildren(void);
-
-/*
- * Nfs callback server daemon.
- *
- * 1 - do file descriptor and signal cleanup
- * 2 - fork the nfscbd(s)
- * 4 - create callback server socket(s)
- * 5 - set up server socket for rpc
- *
- * For connectionless protocols, just pass the socket into the kernel via.
- * nfssvc().
- * For connection based sockets, loop doing accepts. When you get a new
- * socket from accept, pass the msgsock into the kernel via. nfssvc().
- */
-int
-main(int argc, char *argv[])
-{
- struct nfscbd_args nfscbdargs;
- struct nfsd_nfscbd_args nfscbdargs2;
- struct sockaddr_in inetaddr, inetpeer;
- fd_set ready, sockbits;
- int ch, connect_type_cnt, len, maxsock, msgsock, error;
- int nfssvc_flag, on, sock, tcpsock, ret, mustfreeai = 0;
- char *cp, princname[128];
- char myname[MAXHOSTNAMELEN], *myfqdnname = NULL;
- struct addrinfo *aip, hints;
- pid_t pid;
- short myport = NFSV4_CBPORT;
-
- if (modfind("nfscl") < 0) {
- /* Not present in kernel, try loading it */
- if (kldload("nfscl") < 0 ||
- modfind("nfscl") < 0)
- errx(1, "nfscl is not available");
- }
- /*
- * First, get our fully qualified host name, if possible.
- */
- if (gethostname(myname, MAXHOSTNAMELEN) >= 0) {
- cp = strchr(myname, '.');
- if (cp != NULL && *(cp + 1) != '\0') {
- cp = myname;
- } else {
- /*
- * No domain on myname, so try looking it up.
- */
- cp = NULL;
- memset((void *)&hints, 0, sizeof (hints));
- hints.ai_flags = AI_CANONNAME;
- error = getaddrinfo(myname, NULL, &hints, &aip);
- if (error == 0) {
- if (aip->ai_canonname != NULL &&
- (cp = strchr(aip->ai_canonname, '.')) != NULL
- && *(cp + 1) != '\0') {
- cp = aip->ai_canonname;
- mustfreeai = 1;
- } else {
- freeaddrinfo(aip);
- }
- }
- }
- if (cp == NULL)
- warnx("Can't get fully qualified host name");
- myfqdnname = cp;
- }
-
- princname[0] = '\0';
-#define GETOPT "p:P:"
-#define USAGE "[ -p port_num ] [ -P client_principal ]"
- while ((ch = getopt(argc, argv, GETOPT)) != -1)
- switch (ch) {
- case 'p':
- myport = atoi(optarg);
- if (myport < 1) {
- warnx("port# non-positive, reset to %d",
- NFSV4_CBPORT);
- myport = NFSV4_CBPORT;
- }
- break;
- case 'P':
- cp = optarg;
- if (cp != NULL && strlen(cp) > 0 &&
- strlen(cp) < sizeof (princname)) {
- if (strchr(cp, '@') == NULL &&
- myfqdnname != NULL)
- snprintf(princname, sizeof (princname),
- "%s@%s", cp, myfqdnname);
- else
- strlcpy(princname, cp,
- sizeof (princname));
- } else {
- warnx("client princ invalid. ignored\n");
- }
- break;
- default:
- case '?':
- usage();
- };
- argv += optind;
- argc -= optind;
-
- if (argc > 0)
- usage();
-
- if (mustfreeai)
- freeaddrinfo(aip);
- nfscbdargs2.principal = (const char *)princname;
- if (debug == 0) {
- daemon(0, 0);
- (void)signal(SIGTERM, SIG_IGN);
- (void)signal(SIGHUP, SIG_IGN);
- (void)signal(SIGINT, SIG_IGN);
- (void)signal(SIGQUIT, SIG_IGN);
- }
- (void)signal(SIGSYS, nonfs);
- (void)signal(SIGCHLD, reapchild);
-
- openlog("nfscbd:", LOG_PID, LOG_DAEMON);
-
- pid = fork();
- if (pid < 0) {
- syslog(LOG_ERR, "fork: %m");
- nfscbd_exit(1);
- } else if (pid > 0) {
- children = pid;
- } else {
- (void)signal(SIGUSR1, child_cleanup);
- setproctitle("server");
- nfssvc_flag = NFSSVC_NFSCBD;
- if (nfssvc(nfssvc_flag, &nfscbdargs2) < 0) {
- syslog(LOG_ERR, "nfssvc: %m");
- nfscbd_exit(1);
- }
- exit(0);
- }
- (void)signal(SIGUSR1, cleanup);
-
- if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
- syslog(LOG_ERR, "can't create udp socket");
- nfscbd_exit(1);
- }
- memset(&inetaddr, 0, sizeof inetaddr);
- inetaddr.sin_family = AF_INET;
- inetaddr.sin_addr.s_addr = INADDR_ANY;
- inetaddr.sin_port = htons(myport);
- inetaddr.sin_len = sizeof(inetaddr);
- ret = bind(sock, (struct sockaddr *)&inetaddr, sizeof(inetaddr));
- /* If bind() fails, this is a restart, so just skip UDP. */
- if (ret == 0) {
- len = sizeof(inetaddr);
- if (getsockname(sock, (struct sockaddr *)&inetaddr, &len) < 0){
- syslog(LOG_ERR, "can't get bound addr");
- nfscbd_exit(1);
- }
- nfscbdargs.port = ntohs(inetaddr.sin_port);
- if (nfscbdargs.port != myport) {
- syslog(LOG_ERR, "BAD PORT#");
- nfscbd_exit(1);
- }
- nfscbdargs.sock = sock;
- nfscbdargs.name = NULL;
- nfscbdargs.namelen = 0;
- if (nfssvc(NFSSVC_CBADDSOCK, &nfscbdargs) < 0) {
- syslog(LOG_ERR, "can't Add UDP socket");
- nfscbd_exit(1);
- }
- }
- (void)close(sock);
-
- /* Now set up the master server socket waiting for tcp connections. */
- on = 1;
- FD_ZERO(&sockbits);
- connect_type_cnt = 0;
- if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
- syslog(LOG_ERR, "can't create tcp socket");
- nfscbd_exit(1);
- }
- if (setsockopt(tcpsock,
- SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0)
- syslog(LOG_ERR, "setsockopt SO_REUSEADDR: %m");
- /* sin_port is already set */
- inetaddr.sin_family = AF_INET;
- inetaddr.sin_addr.s_addr = INADDR_ANY;
- inetaddr.sin_port = htons(myport);
- inetaddr.sin_len = sizeof(inetaddr);
- if (bind(tcpsock,
- (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) {
- syslog(LOG_ERR, "can't bind tcp addr");
- nfscbd_exit(1);
- }
- if (listen(tcpsock, 5) < 0) {
- syslog(LOG_ERR, "listen failed");
- nfscbd_exit(1);
- }
- FD_SET(tcpsock, &sockbits);
- maxsock = tcpsock;
- connect_type_cnt++;
-
- setproctitle("master");
-
- /*
- * Loop forever accepting connections and passing the sockets
- * into the kernel for the mounts.
- */
- for (;;) {
- ready = sockbits;
- if (connect_type_cnt > 1) {
- if (select(maxsock + 1,
- &ready, NULL, NULL, NULL) < 1) {
- syslog(LOG_ERR, "select failed: %m");
- nfscbd_exit(1);
- }
- }
- if (FD_ISSET(tcpsock, &ready)) {
- len = sizeof(inetpeer);
- if ((msgsock = accept(tcpsock,
- (struct sockaddr *)&inetpeer, &len)) < 0) {
- syslog(LOG_ERR, "accept failed: %m");
- nfscbd_exit(1);
- }
- memset(inetpeer.sin_zero, 0,
- sizeof (inetpeer.sin_zero));
- if (setsockopt(msgsock, SOL_SOCKET,
- SO_KEEPALIVE, (char *)&on, sizeof(on)) < 0)
- syslog(LOG_ERR,
- "setsockopt SO_KEEPALIVE: %m");
- nfscbdargs.sock = msgsock;
- nfscbdargs.name = (caddr_t)&inetpeer;
- nfscbdargs.namelen = sizeof(inetpeer);
- nfssvc(NFSSVC_CBADDSOCK, &nfscbdargs);
- (void)close(msgsock);
- }
- }
-}
-
-static void
-usage(void)
-{
-
- errx(1, "usage: nfscbd %s", USAGE);
-}
-
-static void
-nonfs(int signo __unused)
-{
- syslog(LOG_ERR, "missing system call: NFS not available");
-}
-
-static void
-reapchild(int signo __unused)
-{
- pid_t pid;
-
- while ((pid = wait3(NULL, WNOHANG, NULL)) > 0) {
- if (pid == children)
- children = -1;
- }
-}
-
-static void
-killchildren(void)
-{
-
- if (children > 0)
- kill(children, SIGKILL);
-}
-
-/*
- * Cleanup master after SIGUSR1.
- */
-static void
-cleanup(int signo __unused)
-{
- nfscbd_exit(0);
-}
-
-/*
- * Cleanup child after SIGUSR1.
- */
-static void
-child_cleanup(int signo __unused)
-{
- exit(0);
-}
-
-static void
-nfscbd_exit(int status __unused)
-{
- killchildren();
- exit(status);
-}
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