int
main(int argc, char **argv)
{
int ch, mntflags;
char mntpath[MAXPATHLEN];
struct vfsconf vfc;
int error;
/*
* XXX
* mount(8) calls the mount programs with an argv[0] which is
* /just/ the filesystem name. So, if there is no underscore
* in argv[0], we assume that we are being called from mount(8)
* and that argv[0] is thus the name of the filesystem type.
*/
fsname = strrchr(argv[0], '_');
if (fsname) {
if (strcmp(fsname, "_std") == 0)
errx(EX_USAGE, "argv[0] must end in _fsname");
fsname++;
} else {
fsname = argv[0];
}
mntflags = 0;
while ((ch = getopt(argc, argv, "o:")) != -1)
switch (ch) {
case 'o':
getmntopts(optarg, mopts, &mntflags, 0);
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc != 2)
usage();
error = getvfsbyname(fsname, &vfc);
if (error && vfsisloadable(fsname)) {
if(vfsload(fsname))
err(EX_OSERR, "vfsload(%s)", fsname);
endvfsent();
error = getvfsbyname(fsname, &vfc);
}
if (error)
errx(EX_OSERR, "%s filesystem not available", fsname);
/* resolve the mountpoint with realpath(3) */
checkpath(argv[1], mntpath);
if (mount(vfc.vfc_name, mntpath, mntflags, NULL))
err(EX_OSERR, NULL);
exit(0);
}
int
main(int argc, char **argv)
{
struct portal_args args;
struct sockaddr_un un;
char *conf;
char mountpt[MAXPATHLEN];
int mntflags = 0;
char tag[32];
struct vfsconf vfc;
mode_t um;
qelem q;
int rc;
int so;
int error = 0;
/*
* Crack command line args
*/
int ch;
while ((ch = getopt(argc, argv, "o:")) != -1) {
switch (ch) {
case 'o':
getmntopts(optarg, mopts, &mntflags, 0);
break;
default:
error = 1;
break;
}
}
if (optind != (argc - 2))
error = 1;
if (error)
usage();
/*
* Get config file and mount point
*/
conf = argv[optind];
/* resolve the mountpoint with realpath(3) */
checkpath(argv[optind+1], mountpt);
/*
* Construct the listening socket
*/
un.sun_family = AF_UNIX;
if (sizeof(_PATH_TMPPORTAL) >= sizeof(un.sun_path)) {
errx(EX_SOFTWARE, "portal socket name too long");
}
strcpy(un.sun_path, _PATH_TMPPORTAL);
mktemp(un.sun_path);
un.sun_len = strlen(un.sun_path);
so = socket(AF_UNIX, SOCK_STREAM, 0);
if (so < 0) {
err(EX_OSERR, "socket");
}
um = umask(077);
unlink(un.sun_path);
if (bind(so, (struct sockaddr *) &un, sizeof(un)) < 0)
err(1, NULL);
unlink(un.sun_path);
umask(um);
listen(so, 5);
args.pa_socket = so;
sprintf(tag, "portal:%d", getpid());
args.pa_config = tag;
error = getvfsbyname("portal", &vfc);
if (error && vfsisloadable("portal")) {
if (vfsload("portal"))
err(EX_OSERR, "vfsload(portal)");
endvfsent();
error = getvfsbyname("portal", &vfc);
}
if (error)
errx(EX_OSERR, "portal filesystem is not available");
rc = mount(vfc.vfc_name, mountpt, mntflags, &args);
if (rc < 0)
err(1, NULL);
/*
* Everything is ready to go - now is a good time to fork
*/
#ifndef DEBUG
daemon(0, 0);
#endif
/*
* Start logging (and change name)
*/
openlog("portald", LOG_CONS|LOG_PID, LOG_DAEMON);
q.q_forw = q.q_back = &q;
readcf = 1;
signal(SIGCHLD, sigchld);
signal(SIGHUP, sighup);
/*
* Just loop waiting for new connections and activating them
*/
for (;;) {
struct sockaddr_un un2;
int len2 = sizeof(un2);
int so2;
pid_t pid;
fd_set fdset;
/*
* Check whether we need to re-read the configuration file
*/
if (readcf) {
#ifdef DEBUG
printf ("re-reading configuration file\n");
#endif
readcf = 0;
conf_read(&q, conf);
continue;
}
/*
* Accept a new connection
* Will get EINTR if a signal has arrived, so just
* ignore that error code
*/
FD_ZERO(&fdset);
FD_SET(so, &fdset);
rc = select(so+1, &fdset, NULL, NULL, NULL);
if (rc < 0) {
if (errno == EINTR)
continue;
syslog(LOG_ERR, "select: %s", strerror(errno));
exit(EX_OSERR);
}
if (rc == 0)
break;
so2 = accept(so, (struct sockaddr *) &un2, &len2);
if (so2 < 0) {
/*
* The unmount function does a shutdown on the socket
* which will generated ECONNABORTED on the accept.
*/
if (errno == ECONNABORTED)
break;
if (errno != EINTR) {
syslog(LOG_ERR, "accept: %s", strerror(errno));
exit(EX_OSERR);
}
continue;
}
/*
* Now fork a new child to deal with the connection
*/
eagain:;
switch (pid = fork()) {
case -1:
if (errno == EAGAIN) {
sleep(1);
goto eagain;
}
syslog(LOG_ERR, "fork: %s", strerror(errno));
break;
case 0:
close(so);
activate(&q, so2);
exit(0);
default:
close(so2);
break;
}
}
syslog(LOG_INFO, "%s unmounted", mountpt);
exit(0);
}
/*
* Nfs server daemon mostly just a user context for nfssvc()
*
* 1 - do file descriptor and signal cleanup
* 2 - fork the nfsd(s)
* 3 - create server socket(s)
* 4 - register socket with rpcbind
*
* 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().
* The arguments are:
* -r - reregister with rpcbind
* -d - unregister with rpcbind
* -t - support tcp nfs clients
* -u - support udp nfs clients
* followed by "n" which is the number of nfsds' to fork off
*/
int
main(int argc, char **argv)
{
struct nfsd_args nfsdargs;
struct addrinfo *ai_udp, *ai_tcp, *ai_udp6, *ai_tcp6, hints;
struct netconfig *nconf_udp, *nconf_tcp, *nconf_udp6, *nconf_tcp6;
struct netbuf nb_udp, nb_tcp, nb_udp6, nb_tcp6;
struct sockaddr_in inetpeer;
struct sockaddr_in6 inet6peer;
fd_set ready, sockbits;
fd_set v4bits, v6bits;
int ch, connect_type_cnt, i, maxsock, msgsock;
socklen_t len;
int on = 1, unregister, reregister, sock;
int tcp6sock, ip6flag, tcpflag, tcpsock;
int udpflag, ecode, s, srvcnt;
int bindhostc, bindanyflag, rpcbreg, rpcbregcnt;
char **bindhost = NULL;
pid_t pid;
struct vfsconf vfc;
int error;
error = getvfsbyname("nfs", &vfc);
if (error && vfsisloadable("nfs")) {
if (vfsload("nfs"))
err(1, "vfsload(nfs)");
endvfsent(); /* flush cache */
error = getvfsbyname("nfs", &vfc);
}
if (error)
errx(1, "NFS is not available in the running kernel");
nfsdcnt = DEFNFSDCNT;
unregister = reregister = tcpflag = maxsock = 0;
bindanyflag = udpflag = connect_type_cnt = bindhostc = 0;
#define GETOPT "ah:n:rdtu"
#define USAGE "[-ardtu] [-n num_servers] [-h bindip]"
while ((ch = getopt(argc, argv, GETOPT)) != -1)
switch (ch) {
case 'a':
bindanyflag = 1;
break;
case 'n':
nfsdcnt = atoi(optarg);
if (nfsdcnt < 1 || nfsdcnt > MAXNFSDCNT) {
warnx("nfsd count %d; reset to %d", nfsdcnt,
DEFNFSDCNT);
nfsdcnt = DEFNFSDCNT;
}
break;
case 'h':
bindhostc++;
bindhost = realloc(bindhost,sizeof(char *)*bindhostc);
if (bindhost == NULL)
errx(1, "Out of memory");
bindhost[bindhostc-1] = strdup(optarg);
if (bindhost[bindhostc-1] == NULL)
errx(1, "Out of memory");
break;
case 'r':
reregister = 1;
break;
case 'd':
unregister = 1;
break;
case 't':
tcpflag = 1;
break;
case 'u':
udpflag = 1;
break;
default:
case '?':
usage();
};
if (!tcpflag && !udpflag)
udpflag = 1;
argv += optind;
argc -= optind;
/*
* XXX
* Backward compatibility, trailing number is the count of daemons.
*/
if (argc > 1)
usage();
if (argc == 1) {
nfsdcnt = atoi(argv[0]);
if (nfsdcnt < 1 || nfsdcnt > MAXNFSDCNT) {
warnx("nfsd count %d; reset to %d", nfsdcnt,
DEFNFSDCNT);
nfsdcnt = DEFNFSDCNT;
}
}
ip6flag = 1;
s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
if (s == -1) {
if (errno != EPROTONOSUPPORT)
err(1, "socket");
ip6flag = 0;
} else if (getnetconfigent("udp6") == NULL ||
getnetconfigent("tcp6") == NULL) {
ip6flag = 0;
}
if (s != -1)
close(s);
if (bindhostc == 0 || bindanyflag) {
bindhostc++;
bindhost = realloc(bindhost,sizeof(char *)*bindhostc);
if (bindhost == NULL)
errx(1, "Out of memory");
bindhost[bindhostc-1] = strdup("*");
if (bindhost[bindhostc-1] == NULL)
errx(1, "Out of memory");
}
if (unregister) {
unregistration();
exit (0);
}
if (reregister) {
if (udpflag) {
memset(&hints, 0, sizeof hints);
hints.ai_flags = AI_PASSIVE;
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_protocol = IPPROTO_UDP;
ecode = getaddrinfo(NULL, "nfs", &hints, &ai_udp);
if (ecode != 0)
err(1, "getaddrinfo udp: %s", gai_strerror(ecode));
nconf_udp = getnetconfigent("udp");
if (nconf_udp == NULL)
err(1, "getnetconfigent udp failed");
nb_udp.buf = ai_udp->ai_addr;
nb_udp.len = nb_udp.maxlen = ai_udp->ai_addrlen;
if ((!rpcb_set(RPCPROG_NFS, 2, nconf_udp, &nb_udp)) ||
(!rpcb_set(RPCPROG_NFS, 3, nconf_udp, &nb_udp)))
err(1, "rpcb_set udp failed");
freeaddrinfo(ai_udp);
}
if (udpflag && ip6flag) {
memset(&hints, 0, sizeof hints);
hints.ai_flags = AI_PASSIVE;
hints.ai_family = AF_INET6;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_protocol = IPPROTO_UDP;
ecode = getaddrinfo(NULL, "nfs", &hints, &ai_udp6);
if (ecode != 0)
err(1, "getaddrinfo udp6: %s", gai_strerror(ecode));
nconf_udp6 = getnetconfigent("udp6");
if (nconf_udp6 == NULL)
err(1, "getnetconfigent udp6 failed");
nb_udp6.buf = ai_udp6->ai_addr;
nb_udp6.len = nb_udp6.maxlen = ai_udp6->ai_addrlen;
if ((!rpcb_set(RPCPROG_NFS, 2, nconf_udp6, &nb_udp6)) ||
(!rpcb_set(RPCPROG_NFS, 3, nconf_udp6, &nb_udp6)))
err(1, "rpcb_set udp6 failed");
freeaddrinfo(ai_udp6);
}
if (tcpflag) {
memset(&hints, 0, sizeof hints);
hints.ai_flags = AI_PASSIVE;
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
ecode = getaddrinfo(NULL, "nfs", &hints, &ai_tcp);
if (ecode != 0)
err(1, "getaddrinfo tcp: %s", gai_strerror(ecode));
nconf_tcp = getnetconfigent("tcp");
if (nconf_tcp == NULL)
err(1, "getnetconfigent tcp failed");
nb_tcp.buf = ai_tcp->ai_addr;
nb_tcp.len = nb_tcp.maxlen = ai_tcp->ai_addrlen;
if ((!rpcb_set(RPCPROG_NFS, 2, nconf_tcp, &nb_tcp)) ||
(!rpcb_set(RPCPROG_NFS, 3, nconf_tcp, &nb_tcp)))
err(1, "rpcb_set tcp failed");
freeaddrinfo(ai_tcp);
}
if (tcpflag && ip6flag) {
memset(&hints, 0, sizeof hints);
hints.ai_flags = AI_PASSIVE;
hints.ai_family = AF_INET6;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
ecode = getaddrinfo(NULL, "nfs", &hints, &ai_tcp6);
if (ecode != 0)
err(1, "getaddrinfo tcp6: %s", gai_strerror(ecode));
nconf_tcp6 = getnetconfigent("tcp6");
if (nconf_tcp6 == NULL)
err(1, "getnetconfigent tcp6 failed");
nb_tcp6.buf = ai_tcp6->ai_addr;
nb_tcp6.len = nb_tcp6.maxlen = ai_tcp6->ai_addrlen;
if ((!rpcb_set(RPCPROG_NFS, 2, nconf_tcp6, &nb_tcp6)) ||
(!rpcb_set(RPCPROG_NFS, 3, nconf_tcp6, &nb_tcp6)))
err(1, "rpcb_set tcp6 failed");
freeaddrinfo(ai_tcp6);
}
exit (0);
}
if (debug == 0) {
daemon(0, 0);
signal(SIGHUP, SIG_IGN);
signal(SIGINT, SIG_IGN);
/*
* nfsd sits in the kernel most of the time. It needs
* to ignore SIGTERM/SIGQUIT in order to stay alive as long
* as possible during a shutdown, otherwise loopback
* mounts will not be able to unmount.
*/
signal(SIGTERM, SIG_IGN);
signal(SIGQUIT, SIG_IGN);
}
signal(SIGSYS, nonfs);
signal(SIGCHLD, reapchild);
openlog("nfsd", LOG_PID, LOG_DAEMON);
/* If we use UDP only, we start the last server below. */
srvcnt = tcpflag ? nfsdcnt : nfsdcnt - 1;
for (i = 0; i < srvcnt; i++) {
switch ((pid = fork())) {
case -1:
syslog(LOG_ERR, "fork: %m");
nfsd_exit(1);
case 0:
break;
default:
children[i] = pid;
continue;
}
signal(SIGUSR1, child_cleanup);
setproctitle("server");
start_server(0);
}
signal(SIGUSR1, cleanup);
FD_ZERO(&v4bits);
FD_ZERO(&v6bits);
FD_ZERO(&sockbits);
rpcbregcnt = 0;
/* Set up the socket for udp and rpcb register it. */
if (udpflag) {
rpcbreg = 0;
for (i = 0; i < bindhostc; i++) {
memset(&hints, 0, sizeof hints);
hints.ai_flags = AI_PASSIVE;
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_protocol = IPPROTO_UDP;
if (setbindhost(&ai_udp, bindhost[i], hints) == 0) {
rpcbreg = 1;
rpcbregcnt++;
if ((sock = socket(ai_udp->ai_family,
ai_udp->ai_socktype,
ai_udp->ai_protocol)) < 0) {
syslog(LOG_ERR,
"can't create udp socket");
nfsd_exit(1);
}
if (bind(sock, ai_udp->ai_addr,
ai_udp->ai_addrlen) < 0) {
syslog(LOG_ERR,
"can't bind udp addr %s: %m",
bindhost[i]);
nfsd_exit(1);
}
freeaddrinfo(ai_udp);
nfsdargs.sock = sock;
nfsdargs.name = NULL;
nfsdargs.namelen = 0;
if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) {
syslog(LOG_ERR, "can't Add UDP socket");
nfsd_exit(1);
}
close(sock);
}
}
if (rpcbreg == 1) {
memset(&hints, 0, sizeof hints);
hints.ai_flags = AI_PASSIVE;
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_protocol = IPPROTO_UDP;
ecode = getaddrinfo(NULL, "nfs", &hints, &ai_udp);
if (ecode != 0) {
syslog(LOG_ERR, "getaddrinfo udp: %s",
gai_strerror(ecode));
nfsd_exit(1);
}
nconf_udp = getnetconfigent("udp");
if (nconf_udp == NULL)
err(1, "getnetconfigent udp failed");
nb_udp.buf = ai_udp->ai_addr;
nb_udp.len = nb_udp.maxlen = ai_udp->ai_addrlen;
if ((!rpcb_set(RPCPROG_NFS, 2, nconf_udp, &nb_udp)) ||
(!rpcb_set(RPCPROG_NFS, 3, nconf_udp, &nb_udp)))
err(1, "rpcb_set udp failed");
freeaddrinfo(ai_udp);
}
}
/* Set up the socket for udp6 and rpcb register it. */
if (udpflag && ip6flag) {
rpcbreg = 0;
for (i = 0; i < bindhostc; i++) {
memset(&hints, 0, sizeof hints);
hints.ai_flags = AI_PASSIVE;
hints.ai_family = AF_INET6;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_protocol = IPPROTO_UDP;
if (setbindhost(&ai_udp6, bindhost[i], hints) == 0) {
rpcbreg = 1;
rpcbregcnt++;
if ((sock = socket(ai_udp6->ai_family,
ai_udp6->ai_socktype,
ai_udp6->ai_protocol)) < 0) {
syslog(LOG_ERR,
"can't create udp6 socket");
nfsd_exit(1);
}
if (setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY,
&on, sizeof on) < 0) {
syslog(LOG_ERR,
"can't set v6-only binding for "
"udp6 socket: %m");
nfsd_exit(1);
}
if (bind(sock, ai_udp6->ai_addr,
ai_udp6->ai_addrlen) < 0) {
syslog(LOG_ERR,
"can't bind udp6 addr %s: %m",
bindhost[i]);
nfsd_exit(1);
}
freeaddrinfo(ai_udp6);
nfsdargs.sock = sock;
nfsdargs.name = NULL;
nfsdargs.namelen = 0;
if (nfssvc(NFSSVC_ADDSOCK, &nfsdargs) < 0) {
syslog(LOG_ERR,
"can't add UDP6 socket");
nfsd_exit(1);
}
close(sock);
}
}
if (rpcbreg == 1) {
memset(&hints, 0, sizeof hints);
hints.ai_flags = AI_PASSIVE;
hints.ai_family = AF_INET6;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_protocol = IPPROTO_UDP;
ecode = getaddrinfo(NULL, "nfs", &hints, &ai_udp6);
if (ecode != 0) {
syslog(LOG_ERR, "getaddrinfo udp6: %s",
gai_strerror(ecode));
nfsd_exit(1);
}
nconf_udp6 = getnetconfigent("udp6");
if (nconf_udp6 == NULL)
err(1, "getnetconfigent udp6 failed");
nb_udp6.buf = ai_udp6->ai_addr;
nb_udp6.len = nb_udp6.maxlen = ai_udp6->ai_addrlen;
if ((!rpcb_set(RPCPROG_NFS, 2, nconf_udp6, &nb_udp6)) ||
(!rpcb_set(RPCPROG_NFS, 3, nconf_udp6, &nb_udp6)))
err(1, "rpcb_set udp6 failed");
freeaddrinfo(ai_udp6);
}
}
/* Set up the socket for tcp and rpcb register it. */
if (tcpflag) {
rpcbreg = 0;
for (i = 0; i < bindhostc; i++) {
memset(&hints, 0, sizeof hints);
hints.ai_flags = AI_PASSIVE;
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
if (setbindhost(&ai_tcp, bindhost[i], hints) == 0) {
rpcbreg = 1;
rpcbregcnt++;
if ((tcpsock = socket(AF_INET, SOCK_STREAM,
0)) < 0) {
syslog(LOG_ERR,
"can't create tpc socket");
nfsd_exit(1);
}
if (setsockopt(tcpsock, SOL_SOCKET,
SO_REUSEADDR,
(char *)&on, sizeof(on)) < 0)
syslog(LOG_ERR,
"setsockopt SO_REUSEADDR: %m");
if (bind(tcpsock, ai_tcp->ai_addr,
ai_tcp->ai_addrlen) < 0) {
syslog(LOG_ERR,
"can't bind tcp addr %s: %m",
bindhost[i]);
nfsd_exit(1);
}
if (listen(tcpsock, 64) < 0) {
syslog(LOG_ERR, "listen failed");
nfsd_exit(1);
}
freeaddrinfo(ai_tcp);
FD_SET(tcpsock, &sockbits);
FD_SET(tcpsock, &v4bits);
maxsock = tcpsock;
connect_type_cnt++;
}
}
if (rpcbreg == 1) {
memset(&hints, 0, sizeof hints);
hints.ai_flags = AI_PASSIVE;
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
ecode = getaddrinfo(NULL, "nfs", &hints,
&ai_tcp);
if (ecode != 0) {
syslog(LOG_ERR, "getaddrinfo tcp: %s",
gai_strerror(ecode));
nfsd_exit(1);
}
nconf_tcp = getnetconfigent("tcp");
if (nconf_tcp == NULL)
err(1, "getnetconfigent tcp failed");
nb_tcp.buf = ai_tcp->ai_addr;
nb_tcp.len = nb_tcp.maxlen = ai_tcp->ai_addrlen;
if ((!rpcb_set(RPCPROG_NFS, 2, nconf_tcp,
&nb_tcp)) || (!rpcb_set(RPCPROG_NFS, 3,
nconf_tcp, &nb_tcp)))
err(1, "rpcb_set tcp failed");
freeaddrinfo(ai_tcp);
}
}
/* Set up the socket for tcp6 and rpcb register it. */
if (tcpflag && ip6flag) {
rpcbreg = 0;
for (i = 0; i < bindhostc; i++) {
memset(&hints, 0, sizeof hints);
hints.ai_flags = AI_PASSIVE;
hints.ai_family = AF_INET6;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
if (setbindhost(&ai_tcp6, bindhost[i], hints) == 0) {
rpcbreg = 1;
rpcbregcnt++;
if ((tcp6sock = socket(ai_tcp6->ai_family,
ai_tcp6->ai_socktype,
ai_tcp6->ai_protocol)) < 0) {
syslog(LOG_ERR,
"can't create tcp6 socket");
nfsd_exit(1);
}
if (setsockopt(tcp6sock, SOL_SOCKET,
SO_REUSEADDR,
(char *)&on, sizeof(on)) < 0)
syslog(LOG_ERR,
"setsockopt SO_REUSEADDR: %m");
if (setsockopt(tcp6sock, IPPROTO_IPV6,
IPV6_V6ONLY, &on, sizeof on) < 0) {
syslog(LOG_ERR,
"can't set v6-only binding for tcp6 "
"socket: %m");
nfsd_exit(1);
}
if (bind(tcp6sock, ai_tcp6->ai_addr,
ai_tcp6->ai_addrlen) < 0) {
syslog(LOG_ERR,
"can't bind tcp6 addr %s: %m",
bindhost[i]);
nfsd_exit(1);
}
if (listen(tcp6sock, 64) < 0) {
syslog(LOG_ERR, "listen failed");
nfsd_exit(1);
}
freeaddrinfo(ai_tcp6);
FD_SET(tcp6sock, &sockbits);
FD_SET(tcp6sock, &v6bits);
if (maxsock < tcp6sock)
maxsock = tcp6sock;
connect_type_cnt++;
}
}
if (rpcbreg == 1) {
memset(&hints, 0, sizeof hints);
hints.ai_flags = AI_PASSIVE;
hints.ai_family = AF_INET6;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
ecode = getaddrinfo(NULL, "nfs", &hints, &ai_tcp6);
if (ecode != 0) {
syslog(LOG_ERR, "getaddrinfo tcp6: %s",
gai_strerror(ecode));
nfsd_exit(1);
}
nconf_tcp6 = getnetconfigent("tcp6");
if (nconf_tcp6 == NULL)
err(1, "getnetconfigent tcp6 failed");
nb_tcp6.buf = ai_tcp6->ai_addr;
nb_tcp6.len = nb_tcp6.maxlen = ai_tcp6->ai_addrlen;
if ((!rpcb_set(RPCPROG_NFS, 2, nconf_tcp6, &nb_tcp6)) ||
(!rpcb_set(RPCPROG_NFS, 3, nconf_tcp6, &nb_tcp6)))
err(1, "rpcb_set tcp6 failed");
freeaddrinfo(ai_tcp6);
}
}
if (rpcbregcnt == 0) {
syslog(LOG_ERR, "rpcb_set() failed, nothing to do: %m");
nfsd_exit(1);
}
if (tcpflag && connect_type_cnt == 0) {
syslog(LOG_ERR, "tcp connects == 0, nothing to do: %m");
nfsd_exit(1);
}
setproctitle("master");
/*
* We always want a master to have a clean way to to shut nfsd down
* (with unregistration): if the master is killed, it unregisters and
* kills all children. If we run for UDP only (and so do not have to
* loop waiting waiting for accept), we instead make the parent
* a "server" too. start_server will not return.
*/
if (!tcpflag)
start_server(1);
/*
* 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");
if (errno == EINTR)
continue;
nfsd_exit(1);
}
}
for (tcpsock = 0; tcpsock <= maxsock; tcpsock++) {
if (FD_ISSET(tcpsock, &ready)) {
if (FD_ISSET(tcpsock, &v4bits)) {
len = sizeof(inetpeer);
if ((msgsock = accept(tcpsock,
(struct sockaddr *)&inetpeer, &len)) < 0) {
syslog(LOG_ERR, "accept failed: %m");
if (errno == ECONNABORTED ||
errno == EINTR)
continue;
nfsd_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");
nfsdargs.sock = msgsock;
nfsdargs.name = (caddr_t)&inetpeer;
nfsdargs.namelen = len;
nfssvc(NFSSVC_ADDSOCK, &nfsdargs);
close(msgsock);
} else if (FD_ISSET(tcpsock, &v6bits)) {
len = sizeof(inet6peer);
if ((msgsock = accept(tcpsock,
(struct sockaddr *)&inet6peer,
&len)) < 0) {
syslog(LOG_ERR,
"accept failed: %m");
if (errno == ECONNABORTED ||
errno == EINTR)
continue;
nfsd_exit(1);
}
if (setsockopt(msgsock, SOL_SOCKET,
SO_KEEPALIVE, (char *)&on,
sizeof(on)) < 0)
syslog(LOG_ERR, "setsockopt "
"SO_KEEPALIVE: %m");
nfsdargs.sock = msgsock;
nfsdargs.name = (caddr_t)&inet6peer;
nfsdargs.namelen = len;
nfssvc(NFSSVC_ADDSOCK, &nfsdargs);
close(msgsock);
}
}
}
}
}
int
main(int ac, char **av)
{
struct hammer_mount_info info;
struct vfsconf vfc;
struct hammer_volume_ondisk *od;
int mount_flags = 0;
int error;
int ch;
int init_flags = 0;
int ax;
int fd;
int pr;
int fdevs_size;
char *mountpt;
char *ptr;
char *fdevs;
bzero(&info, sizeof(info));
info.asof = 0;
mount_flags = 0;
info.hflags = 0;
while ((ch = getopt(ac, av, "o:T:u")) != -1) {
switch(ch) {
case 'T':
info.asof = strtoull(optarg, NULL, 0);
break;
case 'o':
getmntopts(optarg, mopts, &mount_flags, &info.hflags);
/*
* Handle extended flags with parameters.
*/
if (info.hflags & HMNT_MASTERID) {
ptr = strstr(optarg, "master=");
if (ptr) {
info.master_id = strtol(ptr + 7, NULL, 0);
if (info.master_id == 0) {
fprintf(stderr,
"hammer_mount: Warning: a master id of 0 is the default, explicit\n"
"settings should probably use 1-15\n");
}
}
ptr = strstr(optarg, "nomirror");
if (ptr)
info.master_id = -1;
}
break;
case 'u':
init_flags |= MNT_UPDATE;
break;
default:
usage();
/* not reached */
}
}
ac -= optind;
av += optind;
mount_flags |= init_flags;
/*
* Only the mount point need be specified in update mode.
*/
if (init_flags & MNT_UPDATE) {
if (ac != 1) {
usage();
/* not reached */
}
mountpt = av[0];
if (mount(vfc.vfc_name, mountpt, mount_flags, &info))
err(1, "mountpoint %s", mountpt);
exit(0);
}
if (ac < 2) {
usage();
/* not reached */
}
/*
* Mount arguments: vol [vol...] mountpt
*/
extract_volumes(&info.volumes, &info.nvolumes, av, ac - 1);
mountpt = av[ac - 1];
/*
* Load the hammer module if necessary (this bit stolen from
* mount_null).
*/
error = getvfsbyname("hammer", &vfc);
if (error && vfsisloadable("hammer")) {
if (vfsload("hammer") != 0)
err(1, "vfsload(hammer)");
endvfsent();
error = getvfsbyname("hammer", &vfc);
}
if (error)
errx(1, "hammer filesystem is not available");
if (mount(vfc.vfc_name, mountpt, mount_flags, &info)) {
/* Build fdevs in case of error to report failed devices */
fdevs_size = ac * PATH_MAX;
fdevs = malloc(fdevs_size);
for (ax = 0; ax < ac - 1; ax++) {
fd = open(info.volumes[ax], O_RDONLY);
if (fd < 0 ) {
printf ("%s: open failed\n", info.volumes[ax]);
strlcat(fdevs, info.volumes[ax], fdevs_size);
if (ax < ac - 2)
strlcat(fdevs, " ", fdevs_size);
continue;
}
od = malloc(HAMMER_BUFSIZE);
if (od == NULL) {
close (fd);
perror("malloc");
continue;
}
bzero(od, HAMMER_BUFSIZE);
pr = pread(fd, od, HAMMER_BUFSIZE, 0);
if (pr != HAMMER_BUFSIZE ||
od->vol_signature != HAMMER_FSBUF_VOLUME) {
printf("%s: Not a valid HAMMER filesystem\n", info.volumes[ax]);
strlcat(fdevs, info.volumes[ax], fdevs_size);
if (ax < ac - 2)
strlcat(fdevs, " ", fdevs_size);
}
close(fd);
}
err(1,"mount %s on %s", fdevs, mountpt);
}
exit (0);
}
