void
dserv_daemon(dserv_handle_t *handle)
{
struct svcpool_args dserv_svcpool;
struct protob dservproto;
bzero(&dserv_svcpool, sizeof (dserv_svcpool));
dserv_svcpool.id = UNIQUE_SVCPOOL_ID;
if (_nfssys(SVCPOOL_CREATE, &dserv_svcpool)) {
dserv_log(handle, LOG_ERR,
gettext("SVCPOOL_CREATE failed: %m"));
exit(1);
}
dserv_set_pool_id(handle, dserv_svcpool.id);
if (svcwait(dserv_svcpool.id)) {
dserv_log(handle, LOG_ERR,
gettext("svcwait(DSERV_SVCPOOL_ID) failed: %m"));
exit(1);
}
dservproto.serv = "DSERV";
dservproto.versmin = PNFSCTLMDS_V1;
dservproto.versmax = PNFSCTLMDS_V1;
dservproto.program = PNFSCTLMDS;
dservproto.flags = PROTOB_NO_REGISTER;
dservproto.next = NULL;
/*
* We love globals!
*/
Mysvc4 = dserv_service;
do_all_handle = handle;
if (do_all(&dservproto, NULL, 0) == -1) {
dserv_log(handle, LOG_ERR,
gettext("do_all(): %m"));
exit(1);
}
if (num_fds == 0) {
dserv_log(handle, LOG_ERR,
gettext("Could not start DSERV service for any protocol"));
exit(1);
}
end_listen_fds = num_fds;
poll_for_action();
dserv_log(handle, LOG_INFO,
gettext("I am shutting down now"));
exit(1);
}
int
main(int ac, char *av[])
{
char *dir = "/";
int allflag = 0;
int df_allflag = 0;
int opt_cnt = 0;
int maxservers = 1; /* zero allows inifinte number of threads */
int maxservers_set = 0;
int logmaxservers = 0;
int pid;
int i;
char *provider = (char *)NULL;
char *df_provider = (char *)NULL;
struct protob *protobp0, *protobp;
NETSELDECL(proto) = NULL;
NETSELDECL(df_proto) = NULL;
NETSELPDECL(providerp);
char *defval;
boolean_t can_do_mlp;
uint_t dss_npaths = 0;
char **dss_pathnames = NULL;
sigset_t sgset;
char name[PATH_MAX], value[PATH_MAX];
int ret, bufsz;
int pipe_fd = -1;
MyName = *av;
/*
* Initializations that require more privileges than we need to run.
*/
(void) _create_daemon_lock(NFSD, DAEMON_UID, DAEMON_GID);
svcsetprio();
can_do_mlp = priv_ineffect(PRIV_NET_BINDMLP);
if (__init_daemon_priv(PU_RESETGROUPS|PU_CLEARLIMITSET,
DAEMON_UID, DAEMON_GID, PRIV_SYS_NFS,
can_do_mlp ? PRIV_NET_BINDMLP : NULL, NULL) == -1) {
(void) fprintf(stderr, "%s should be run with"
" sufficient privileges\n", av[0]);
exit(1);
}
(void) enable_extended_FILE_stdio(-1, -1);
/*
* Read in the values from SMF first before we check
* command line options so the options override SMF values.
*/
bufsz = PATH_MAX;
ret = nfs_smf_get_prop("max_connections", value, DEFAULT_INSTANCE,
SCF_TYPE_INTEGER, NFSD, &bufsz);
if (ret == SA_OK) {
errno = 0;
max_conns_allowed = strtol(value, (char **)NULL, 10);
if (errno != 0)
max_conns_allowed = -1;
}
bufsz = PATH_MAX;
ret = nfs_smf_get_prop("listen_backlog", value, DEFAULT_INSTANCE,
SCF_TYPE_INTEGER, NFSD, &bufsz);
if (ret == SA_OK) {
errno = 0;
listen_backlog = strtol(value, (char **)NULL, 10);
if (errno != 0) {
listen_backlog = 32;
}
}
bufsz = PATH_MAX;
ret = nfs_smf_get_prop("protocol", value, DEFAULT_INSTANCE,
SCF_TYPE_ASTRING, NFSD, &bufsz);
if ((ret == SA_OK) && strlen(value) > 0) {
df_proto = strdup(value);
opt_cnt++;
if (strncasecmp("ALL", value, 3) == 0) {
free(df_proto);
df_proto = NULL;
df_allflag = 1;
}
}
bufsz = PATH_MAX;
ret = nfs_smf_get_prop("device", value, DEFAULT_INSTANCE,
SCF_TYPE_ASTRING, NFSD, &bufsz);
if ((ret == SA_OK) && strlen(value) > 0) {
df_provider = strdup(value);
opt_cnt++;
}
bufsz = PATH_MAX;
ret = nfs_smf_get_prop("servers", value, DEFAULT_INSTANCE,
SCF_TYPE_INTEGER, NFSD, &bufsz);
if (ret == SA_OK) {
errno = 0;
maxservers = strtol(value, (char **)NULL, 10);
if (errno != 0)
maxservers = 1;
else
maxservers_set = 1;
}
bufsz = 4;
ret = nfs_smf_get_prop("server_versmin", value, DEFAULT_INSTANCE,
SCF_TYPE_INTEGER, NFSD, &bufsz);
if (ret == SA_OK)
nfs_server_vers_min = strtol(value, (char **)NULL, 10);
bufsz = 4;
ret = nfs_smf_get_prop("server_versmax", value, DEFAULT_INSTANCE,
SCF_TYPE_INTEGER, NFSD, &bufsz);
if (ret == SA_OK)
nfs_server_vers_max = strtol(value, (char **)NULL, 10);
bufsz = PATH_MAX;
ret = nfs_smf_get_prop("server_delegation", value, DEFAULT_INSTANCE,
SCF_TYPE_ASTRING, NFSD, &bufsz);
if (ret == SA_OK)
if (strncasecmp(value, "off", 3) == 0)
nfs_server_delegation = FALSE;
/*
* Conflict options error messages.
*/
if (opt_cnt > 1) {
(void) fprintf(stderr, "\nConflicting options, only one of "
"the following options can be specified\n"
"in SMF:\n"
"\tprotocol=ALL\n"
"\tprotocol=protocol\n"
"\tdevice=devicename\n\n");
usage();
}
opt_cnt = 0;
while ((i = getopt(ac, av, "ac:p:s:t:l:")) != EOF) {
switch (i) {
case 'a':
free(df_proto);
df_proto = NULL;
free(df_provider);
df_provider = NULL;
allflag = 1;
opt_cnt++;
break;
case 'c':
max_conns_allowed = atoi(optarg);
break;
case 'p':
proto = optarg;
df_allflag = 0;
opt_cnt++;
break;
/*
* DSS: NFSv4 distributed stable storage.
*
* This is a Contracted Project Private interface, for
* the sole use of Sun Cluster HA-NFS. See PSARC/2006/313.
*/
case 's':
if (strlen(optarg) < MAXPATHLEN) {
/* first "-s" option encountered? */
if (dss_pathnames == NULL) {
/*
* Allocate maximum possible space
* required given cmdline arg count;
* "-s <path>" consumes two args.
*/
size_t sz = (ac / 2) * sizeof (char *);
dss_pathnames = (char **)malloc(sz);
if (dss_pathnames == NULL) {
(void) fprintf(stderr, "%s: "
"dss paths malloc failed\n",
av[0]);
exit(1);
}
(void) memset(dss_pathnames, 0, sz);
}
dss_pathnames[dss_npaths] = optarg;
dss_npaths++;
} else {
(void) fprintf(stderr,
"%s: -s pathname too long.\n", av[0]);
}
break;
case 't':
provider = optarg;
df_allflag = 0;
opt_cnt++;
break;
case 'l':
listen_backlog = atoi(optarg);
break;
case '?':
usage();
/* NOTREACHED */
}
}
allflag = df_allflag;
if (proto == NULL)
proto = df_proto;
if (provider == NULL)
provider = df_provider;
/*
* Conflict options error messages.
*/
if (opt_cnt > 1) {
(void) fprintf(stderr, "\nConflicting options, only one of "
"the following options can be specified\n"
"on the command line:\n"
"\t-a\n"
"\t-p protocol\n"
"\t-t transport\n\n");
usage();
}
if (proto != NULL &&
strncasecmp(proto, NC_UDP, strlen(NC_UDP)) == 0) {
if (nfs_server_vers_max == NFS_V4) {
if (nfs_server_vers_min == NFS_V4) {
fprintf(stderr,
"NFS version 4 is not supported "
"with the UDP protocol. Exiting\n");
exit(3);
} else {
fprintf(stderr,
"NFS version 4 is not supported "
"with the UDP protocol.\n");
}
}
}
/*
* If there is exactly one more argument, it is the number of
* servers.
*/
if (optind == ac - 1) {
maxservers = atoi(av[optind]);
maxservers_set = 1;
}
/*
* If there are two or more arguments, then this is a usage error.
*/
else if (optind < ac - 1)
usage();
/*
* Check the ranges for min/max version specified
*/
else if ((nfs_server_vers_min > nfs_server_vers_max) ||
(nfs_server_vers_min < NFS_VERSMIN) ||
(nfs_server_vers_max > NFS_VERSMAX))
usage();
/*
* There are no additional arguments, and we haven't set maxservers
* explicitly via the config file, we use a default number of
* servers. We will log this.
*/
else if (maxservers_set == 0)
logmaxservers = 1;
/*
* Basic Sanity checks on options
*
* max_conns_allowed must be positive, except for the special
* value of -1 which is used internally to mean unlimited, -1 isn't
* documented but we allow it anyway.
*
* maxservers must be positive
* listen_backlog must be positive or zero
*/
if (((max_conns_allowed != -1) && (max_conns_allowed <= 0)) ||
(listen_backlog < 0) || (maxservers <= 0)) {
usage();
}
/*
* Set current dir to server root
*/
if (chdir(dir) < 0) {
(void) fprintf(stderr, "%s: ", MyName);
perror(dir);
exit(1);
}
#ifndef DEBUG
pipe_fd = daemonize_init();
#endif
openlog(MyName, LOG_PID | LOG_NDELAY, LOG_DAEMON);
/*
* establish our lock on the lock file and write our pid to it.
* exit if some other process holds the lock, or if there's any
* error in writing/locking the file.
*/
pid = _enter_daemon_lock(NFSD);
switch (pid) {
case 0:
break;
case -1:
fprintf(stderr, "error locking for %s: %s\n", NFSD,
strerror(errno));
exit(2);
default:
/* daemon was already running */
exit(0);
}
/*
* If we've been given a list of paths to be used for distributed
* stable storage, and provided we're going to run a version
* that supports it, setup the DSS paths.
*/
if (dss_pathnames != NULL && nfs_server_vers_max >= DSS_VERSMIN) {
if (dss_init(dss_npaths, dss_pathnames) != 0) {
fprintf(stderr, "%s", "dss_init failed. Exiting.\n");
exit(1);
}
}
/*
* Block all signals till we spawn other
* threads.
*/
(void) sigfillset(&sgset);
(void) thr_sigsetmask(SIG_BLOCK, &sgset, NULL);
if (logmaxservers) {
fprintf(stderr,
"Number of servers not specified. Using default of %d.\n",
maxservers);
}
/*
* Make sure to unregister any previous versions in case the
* user is reconfiguring the server in interesting ways.
*/
svc_unreg(NFS_PROGRAM, NFS_VERSION);
svc_unreg(NFS_PROGRAM, NFS_V3);
svc_unreg(NFS_PROGRAM, NFS_V4);
svc_unreg(NFS_ACL_PROGRAM, NFS_ACL_V2);
svc_unreg(NFS_ACL_PROGRAM, NFS_ACL_V3);
/*
* Set up kernel RPC thread pool for the NFS server.
*/
if (nfssvcpool(maxservers)) {
fprintf(stderr, "Can't set up kernel NFS service: %s. "
"Exiting.\n", strerror(errno));
exit(1);
}
/*
* Set up blocked thread to do LWP creation on behalf of the kernel.
*/
if (svcwait(NFS_SVCPOOL_ID)) {
fprintf(stderr, "Can't set up NFS pool creator: %s. Exiting.\n",
strerror(errno));
exit(1);
}
/*
* RDMA start and stop thread.
* Per pool RDMA listener creation and
* destructor thread.
*
* start rdma services and block in the kernel.
* (only if proto or provider is not set to TCP or UDP)
*/
if ((proto == NULL) && (provider == NULL)) {
if (svcrdma(NFS_SVCPOOL_ID, nfs_server_vers_min,
nfs_server_vers_max, nfs_server_delegation)) {
fprintf(stderr,
"Can't set up RDMA creator thread : %s\n",
strerror(errno));
}
}
/*
* Now open up for signal delivery
*/
(void) thr_sigsetmask(SIG_UNBLOCK, &sgset, NULL);
sigset(SIGTERM, sigflush);
sigset(SIGUSR1, quiesce);
/*
* Build a protocol block list for registration.
*/
protobp0 = protobp = (struct protob *)malloc(sizeof (struct protob));
protobp->serv = "NFS";
protobp->versmin = nfs_server_vers_min;
protobp->versmax = nfs_server_vers_max;
protobp->program = NFS_PROGRAM;
protobp->next = (struct protob *)malloc(sizeof (struct protob));
protobp = protobp->next;
protobp->serv = "NFS_ACL"; /* not used */
protobp->versmin = nfs_server_vers_min;
/* XXX - this needs work to get the version just right */
protobp->versmax = (nfs_server_vers_max > NFS_ACL_V3) ?
NFS_ACL_V3 : nfs_server_vers_max;
protobp->program = NFS_ACL_PROGRAM;
protobp->next = (struct protob *)NULL;
if (allflag) {
if (do_all(protobp0, nfssvc) == -1) {
fprintf(stderr, "setnetconfig failed : %s\n",
strerror(errno));
exit(1);
}
} else if (proto) {
/* there's more than one match for the same protocol */
struct netconfig *nconf;
NCONF_HANDLE *nc;
bool_t protoFound = FALSE;
if ((nc = setnetconfig()) == (NCONF_HANDLE *) NULL) {
fprintf(stderr, "setnetconfig failed : %s\n",
strerror(errno));
goto done;
}
while (nconf = getnetconfig(nc)) {
if (strcmp(nconf->nc_proto, proto) == 0) {
protoFound = TRUE;
do_one(nconf->nc_device, NULL,
protobp0, nfssvc);
}
}
(void) endnetconfig(nc);
if (protoFound == FALSE) {
fprintf(stderr,
"couldn't find netconfig entry for protocol %s\n",
proto);
}
} else if (provider)
do_one(provider, proto, protobp0, nfssvc);
else {
for (providerp = defaultproviders;
*providerp != NULL; providerp++) {
provider = *providerp;
do_one(provider, NULL, protobp0, nfssvc);
}
}
done:
free(protobp);
free(protobp0);
if (num_fds == 0) {
fprintf(stderr, "Could not start NFS service for any protocol."
" Exiting.\n");
exit(1);
}
end_listen_fds = num_fds;
/*
* nfsd is up and running as far as we are concerned.
*/
daemonize_fini(pipe_fd);
/*
* Get rid of unneeded privileges.
*/
__fini_daemon_priv(PRIV_PROC_FORK, PRIV_PROC_EXEC, PRIV_PROC_SESSION,
PRIV_FILE_LINK_ANY, PRIV_PROC_INFO, (char *)NULL);
/*
* Poll for non-data control events on the transport descriptors.
*/
poll_for_action();
/*
* If we get here, something failed in poll_for_action().
*/
return (1);
}
int
main(int argc, char *argv[])
{
int pid;
int i;
struct protob *protobp;
struct flock f;
pid_t pi;
struct svcpool_args cb_svcpool;
MyName = "nfs4cbd";
Mysvc4 = nfs4svc;
#ifndef DEBUG
/*
* Close existing file descriptors, open "/dev/null" as
* standard input, output, and error, and detach from
* controlling terminal.
*/
closefrom(0);
(void) open("/dev/null", O_RDONLY);
(void) open("/dev/null", O_WRONLY);
(void) dup(1);
(void) setsid();
#endif
/*
* create a child to continue our work
* Parent's exit will tell mount command we're ready to go
*/
if ((pi = fork()) > 0) {
exit(0);
}
if (pi == -1) {
(void) syslog(LOG_ERR,
"Could not start NFS4_CALLBACK service");
exit(1);
}
(void) _create_daemon_lock(NFS4CBD, DAEMON_UID, DAEMON_GID);
svcsetprio();
if (__init_daemon_priv(PU_RESETGROUPS|PU_CLEARLIMITSET,
DAEMON_UID, DAEMON_GID, PRIV_SYS_NFS, (char *)NULL) == -1) {
(void) fprintf(stderr, "%s must be run with sufficient"
" privileges\n", argv[0]);
exit(1);
}
/* Basic privileges we don't need, remove from E/P. */
__fini_daemon_priv(PRIV_PROC_EXEC, PRIV_PROC_FORK, PRIV_FILE_LINK_ANY,
PRIV_PROC_SESSION, PRIV_PROC_INFO, (char *)NULL);
/*
* establish our lock on the lock file and write our pid to it.
* exit if some other process holds the lock, or if there's any
* error in writing/locking the file.
*/
pid = _enter_daemon_lock(NFS4CBD);
switch (pid) {
case 0:
break;
case -1:
syslog(LOG_ERR, "error locking for %s: %s", NFS4CBD,
strerror(errno));
exit(2);
default:
/* daemon was already running */
exit(0);
}
openlog(MyName, LOG_PID | LOG_NDELAY, LOG_DAEMON);
cb_svcpool.id = NFS_CB_SVCPOOL_ID;
cb_svcpool.maxthreads = 0;
cb_svcpool.redline = 0;
cb_svcpool.qsize = 0;
cb_svcpool.timeout = 0;
cb_svcpool.stksize = 0;
cb_svcpool.max_same_xprt = 0;
/* create a SVC_POOL for the nfsv4 callback deamon */
if (_nfssys(SVCPOOL_CREATE, &cb_svcpool)) {
(void) syslog(LOG_ERR, "can't setup NFS_CB SVCPOOL: Exiting");
exit(1);
}
/*
* Set up blocked thread to do LWP creation on behalf of the kernel.
*/
if (svcwait(NFS_CB_SVCPOOL_ID)) {
(void) syslog(LOG_ERR,
"Can't set up NFS_CB LWP creator: Exiting");
exit(1);
}
/*
* Build a protocol block list for registration.
*/
protobp = (struct protob *)malloc(sizeof (struct protob));
protobp->serv = "NFS4_CALLBACK";
protobp->versmin = NFS_CB;
protobp->versmax = NFS_CB;
protobp->program = NFS4_CALLBACK;
protobp->next = NULL;
if (do_all(protobp, NULL, 0) == -1) {
exit(1);
}
free(protobp);
if (num_fds == 0) {
(void) syslog(LOG_ERR,
"Could not start NFS4_CALLBACK service for any protocol");
exit(1);
}
end_listen_fds = num_fds;
/*
* Poll for non-data control events on the transport descriptors.
*/
poll_for_action();
/*
* If we get here, something failed in poll_for_action().
*/
return (1);
}