* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
*/
-#include "config.h"
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
#include <signal.h>
#include <sys/stat.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/resource.h>
+#include <sys/wait.h>
#include "xmalloc.h"
#include "misc.h"
#include "mountd.h"
#include "rpcmisc.h"
-
-extern void cache_open(void);
-extern struct nfs_fh_len *cache_get_filehandle(nfs_export *exp, int len, char *p);
-extern void cache_export(nfs_export *exp);
+#include "pseudoflavors.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 *, int *, int v3);
+static struct nfs_fh_len *get_rootfh(struct svc_req *, dirpath *, nfs_export **, mountstat3 *, int v3);
+int reverse_resolve = 0;
int new_cache = 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' },
{ "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' },
{ NULL, 0, 0, 0 }
};
-static int nfs_version = -1;
+#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)
+{
+ if (version2()) {
+ nfs_svc_unregister(MOUNTPROG, MOUNTVERS);
+ nfs_svc_unregister(MOUNTPROG, MOUNTVERS_POSIX);
+ }
+ if (version3())
+ nfs_svc_unregister(MOUNTPROG, MOUNTVERS_NFSV3);
+}
+
+static void
+cleanup_lockfiles (void)
+{
+ unlink(_PATH_XTABLCK);
+ unlink(_PATH_ETABLCK);
+ unlink(_PATH_RMTABLCK);
+}
+
+/* Wait for all worker child processes to exit and reap them */
+static void
+wait_for_workers (void)
+{
+ int status;
+ pid_t pid;
+
+ for (;;) {
+
+ pid = waitpid(0, &status, 0);
+
+ if (pid < 0) {
+ if (errno == ECHILD)
+ return; /* no more children */
+ xlog(L_FATAL, "mountd: can't wait: %s\n",
+ strerror(errno));
+ }
+
+ /* Note: because we SIG_IGN'd SIGCHLD earlier, this
+ * does not happen on 2.6 kernels, and waitpid() blocks
+ * until all the children are dead then returns with
+ * -ECHILD. But, we don't need to do anything on the
+ * death of individual workers, so we don't care. */
+ xlog(L_NOTICE, "mountd: reaped child %d, status %d\n",
+ (int)pid, status);
+ }
+}
+
+/* Fork num_threads worker children and wait for them */
+static void
+fork_workers(void)
+{
+ int i;
+ pid_t pid;
+
+ xlog(L_NOTICE, "mountd: starting %d threads\n", num_threads);
+
+ for (i = 0 ; i < num_threads ; i++) {
+ pid = fork();
+ if (pid < 0) {
+ xlog(L_FATAL, "mountd: cannot fork: %s\n",
+ strerror(errno));
+ }
+ if (pid == 0) {
+ /* worker child */
+
+ /* Re-enable the default action on SIGTERM et al
+ * so that workers die naturally when sent them.
+ * Only the parent unregisters with pmap and
+ * hence needs to do special SIGTERM handling. */
+ struct sigaction sa;
+ sa.sa_handler = SIG_DFL;
+ sa.sa_flags = 0;
+ sigemptyset(&sa.sa_mask);
+ sigaction(SIGHUP, &sa, NULL);
+ sigaction(SIGINT, &sa, NULL);
+ sigaction(SIGTERM, &sa, NULL);
+
+ /* fall into my_svc_run in caller */
+ return;
+ }
+ }
+
+ /* in parent */
+ wait_for_workers();
+ unregister_services();
+ cleanup_lockfiles();
+ xlog(L_NOTICE, "mountd: no more workers, exiting\n");
+ exit(0);
+}
/*
* Signal handler.
static void
killer (int sig)
{
- if (nfs_version & 0x1)
- pmap_unset (MOUNTPROG, MOUNTVERS);
- if (nfs_version & (0x1 << 1))
- pmap_unset (MOUNTPROG, MOUNTVERS_POSIX);
- if (nfs_version & (0x1 << 2))
- pmap_unset (MOUNTPROG, MOUNTVERS_NFSV3);
- xlog (L_FATAL, "Caught signal %d, un-registering and exiting.", sig);
+ unregister_services();
+ if (num_threads > 1) {
+ /* play Kronos and eat our children */
+ kill(0, SIGTERM);
+ wait_for_workers();
+ }
+ cleanup_lockfiles();
+ xlog (L_FATAL, "Caught signal %d, un-registering and exiting.", sig);
}
static void
sig_hup (int sig)
{
- /* don't exit on SIGHUP */
- xlog (L_NOTICE, "Received SIGHUP... Ignoring.\n", sig);
- return;
+ /* don't exit on SIGHUP */
+ xlog (L_NOTICE, "Received SIGHUP... Ignoring.\n", sig);
+ return;
}
bool_t
-mount_null_1_svc(struct svc_req *rqstp, void *argp, void *resp)
+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, "MNT1(%s) called", *path);
- if ((fh = get_rootfh(rqstp, path, &res->fhs_status, 0)) != NULL)
+ 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 *argp, mountlist *res)
+mount_dump_1_svc(struct svc_req *rqstp, void *UNUSED(argp), mountlist *res)
{
- struct sockaddr_in *addr =
- (struct sockaddr_in *) svc_getcaller(rqstp->rq_xprt);
+ 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)));
- if ((*res = mountlist_list()) == NULL)
- xlog(L_WARNING, "dump request from %s failed.",
- inet_ntoa(addr->sin_addr));
+ *res = mountlist_list();
return 1;
}
bool_t
-mount_umnt_1_svc(struct svc_req *rqstp, dirpath *argp, void *resp)
+mount_umnt_1_svc(struct svc_req *rqstp, dirpath *argp, void *UNUSED(resp))
{
- struct sockaddr_in *sin
- = (struct sockaddr_in *) svc_getcaller(rqstp->rq_xprt);
+ 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 = "/";
p = rpath;
}
- if (!(exp = auth_authenticate("unmount", sin, p))) {
+ 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;
- }
- if (new_cache) {
- if (strcmp(inet_ntoa(exp->m_client->m_addrlist[0]), exp->m_client->m_hostname))
- mountlist_del(inet_ntoa(exp->m_client->m_addrlist[0]), exp->m_client->m_hostname);
- mountlist_del(exp->m_client->m_hostname, p);
- } else {
- mountlist_del(exp->m_client->m_hostname, p);
- export_reset (exp);
- }
+
+ mountlist_del(host_ntop(sap, buf, sizeof(buf)), p);
return 1;
}
bool_t
-mount_umntall_1_svc(struct svc_req *rqstp, void *argp, void *resp)
+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/xtab if necessary */
auth_reload();
- mountlist_del_all((struct sockaddr_in *) svc_getcaller(rqstp->rq_xprt));
+ mountlist_del_all(nfs_getrpccaller(rqstp->rq_xprt));
return 1;
}
bool_t
-mount_export_1_svc(struct svc_req *rqstp, void *argp, exports *resp)
+mount_export_1_svc(struct svc_req *rqstp, void *UNUSED(argp), exports *resp)
{
- struct sockaddr_in *addr =
- (struct sockaddr_in *) svc_getcaller(rqstp->rq_xprt);
+ 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)));
- if ((*resp = get_exportlist()) == NULL)
- xlog(L_WARNING, "export request from %s failed.",
- inet_ntoa(addr->sin_addr));
+ *resp = get_exportlist();
return 1;
}
bool_t
-mount_exportall_1_svc(struct svc_req *rqstp, void *argp, exports *resp)
+mount_exportall_1_svc(struct svc_req *rqstp, void *UNUSED(argp), exports *resp)
{
- struct sockaddr_in *addr =
- (struct sockaddr_in *) svc_getcaller(rqstp->rq_xprt);
+ 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();
- if ((*resp = get_exportlist()) == NULL)
- xlog(L_WARNING, "exportall request from %s failed.",
- inet_ntoa(addr->sin_addr));
return 1;
}
bool_t
mount_pathconf_2_svc(struct svc_req *rqstp, dirpath *path, ppathcnf *res)
{
- struct sockaddr_in *sin
- = (struct sockaddr_in *) svc_getcaller(rqstp->rq_xprt);
+ 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));
p = rpath;
}
+ xlog(D_CALL, "Received PATHCONF(%s) request from %s", p,
+ host_ntop(sap, buf, sizeof(buf)));
+
/* Now authenticate the intruder... */
- if (!(exp = auth_authenticate("pathconf", sin, p))) {
+ exp = auth_authenticate("pathconf", sap, p);
+ if (exp == NULL)
return 1;
- } else if (stat(p, &stb) < 0) {
+ else if (stat(p, &stb) < 0) {
xlog(L_WARNING, "can't stat exported dir %s: %s",
p, strerror(errno));
- export_reset (exp);
return 1;
}
res->pc_mask[0] = 0;
res->pc_mask[1] = 0;
- export_reset (exp);
-
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)
{
-#define AUTH_GSS_KRB5 390003
-#define AUTH_GSS_KRB5I 390004
-#define AUTH_GSS_KRB5P 390005
- static int flavors[] = { AUTH_NULL, AUTH_UNIX, AUTH_GSS_KRB5, AUTH_GSS_KRB5I, AUTH_GSS_KRB5P};
+ 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, "MNT3(%s) called", *path);
- if ((fh = get_rootfh(rqstp, path, (int *) &res->fhs_status, 1)) != NULL) {
- struct mountres3_ok *ok = &res->mountres3_u.mountinfo;
+ xlog(D_CALL, "Received MNT3(%s) request from %s", *path,
+ host_ntop(sap, buf, sizeof(buf)));
- ok->fhandle.fhandle3_len = fh->fh_size;
- ok->fhandle.fhandle3_val = fh->fh_handle;
- ok->auth_flavors.auth_flavors_len
- = sizeof(flavors)/sizeof(flavors[0]);
- ok->auth_flavors.auth_flavors_val = flavors;
- }
+ 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, int *error, int v3)
+get_rootfh(struct svc_req *rqstp, dirpath *path, nfs_export **expret,
+ mountstat3 *error, int v3)
{
- struct sockaddr_in *sin =
- (struct sockaddr_in *) svc_getcaller(rqstp->rq_xprt);
+ 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 = "/";
}
/* Now authenticate the intruder... */
- if (!(exp = auth_authenticate("mount", sin, p))) {
- *error = NFSERR_ACCES;
- } else if (stat(p, &stb) < 0) {
+ exp = auth_authenticate("mount", sap, p);
+ if (exp == NULL) {
+ *error = MNT3ERR_ACCES;
+ return NULL;
+ }
+ if (stat(p, &stb) < 0) {
xlog(L_WARNING, "can't stat exported dir %s: %s",
p, strerror(errno));
if (errno == ENOENT)
- *error = NFSERR_NOENT;
+ *error = MNT3ERR_NOENT;
else
- *error = NFSERR_ACCES;
- } else if (!S_ISDIR(stb.st_mode) && !S_ISREG(stb.st_mode)) {
+ *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 = NFSERR_NOTDIR;
- } else if (stat(exp->m_export.e_path, &estb) < 0) {
+ *error = MNT3ERR_NOTDIR;
+ return NULL;
+ }
+ if (stat(exp->m_export.e_path, &estb) < 0) {
xlog(L_WARNING, "can't stat export point %s: %s",
p, strerror(errno));
- *error = NFSERR_NOENT;
- } else if (estb.st_dev != stb.st_dev
- /* && (!new_cache || !(exp->m_export.e_flags & NFSEXP_CROSSMOUNT)) */
- ) {
+ *error = MNT3ERR_NOENT;
+ return NULL;
+ }
+ if (estb.st_dev != stb.st_dev
+ && (!new_cache
+ || !(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 = NFSERR_ACCES;
- } else if (exp->m_export.e_mountpoint &&
+ *error = MNT3ERR_ACCES;
+ return NULL;
+ }
+ if (exp->m_export.e_mountpoint &&
!is_mountpoint(exp->m_export.e_mountpoint[0]?
exp->m_export.e_mountpoint:
exp->m_export.e_path)) {
xlog(L_WARNING, "request to export an unmounted filesystem: %s",
p);
- *error = NFSERR_NOENT;
- } else if (new_cache) {
+ *error = MNT3ERR_NOENT;
+ return NULL;
+ }
+
+ if (new_cache) {
/* This will be a static private nfs_export with just one
* address. We feed it to kernel then extract the filehandle,
*
*/
- struct nfs_fh_len *fh;
- cache_export(exp);
+ if (cache_export(exp, p)) {
+ *error = MNT3ERR_ACCES;
+ return NULL;
+ }
fh = cache_get_filehandle(exp, v3?64:32, p);
- if (fh == NULL)
- *error = NFSERR_ACCES;
- else
- *error = NFS_OK;
- return fh;
+ if (fh == NULL) {
+ *error = MNT3ERR_ACCES;
+ return NULL;
+ }
} else {
- struct nfs_fh_len *fh;
-
- if (exp->m_exported<1)
+ int did_export = 0;
+ retry:
+ if (exp->m_exported<1) {
export_export(exp);
+ did_export = 1;
+ }
if (!exp->m_xtabent)
xtab_append(exp);
if (v3)
- fh = getfh_size ((struct sockaddr *) sin, p, 64);
+ fh = getfh_size((struct sockaddr_in *)sap, p, 64);
if (!v3 || (fh == NULL && errno == EINVAL)) {
/* We first try the new nfs syscall. */
- fh = getfh ((struct sockaddr *) sin, p);
+ fh = getfh((struct sockaddr_in *)sap, p);
if (fh == NULL && errno == EINVAL)
/* Let's try the old one. */
- fh = getfh_old ((struct sockaddr *) sin,
+ fh = getfh_old((struct sockaddr_in *)sap,
stb.st_dev, stb.st_ino);
}
- if (fh != NULL) {
- mountlist_add(exp->m_client->m_hostname, p);
- *error = NFS_OK;
- export_reset (exp);
- return fh;
+ if (fh == NULL && !did_export) {
+ exp->m_exported = 0;
+ goto retry;
+ }
+
+ if (fh == NULL) {
+ xlog(L_WARNING, "getfh failed: %s", strerror(errno));
+ *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);
+ freeaddrinfo(ai);
+ continue;
+ }
+ freeaddrinfo(ai);
}
- xlog(L_WARNING, "getfh failed: %s", strerror(errno));
- *error = NFSERR_ACCES;
+ cp = &(c->gr_next);
}
- export_reset (exp);
- return NULL;
+}
+
+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, *ne;
- struct groupnode *g, *ng, *c, **cp;
+ struct exportnode *e;
nfs_export *exp;
int i;
+ static unsigned int ecounter;
+ unsigned int acounter;
- if (!auth_reload() && elist)
+ acounter = auth_reload();
+ if (elist && acounter == ecounter)
return elist;
- for (e = elist; e != NULL; e = ne) {
- ne = e->ex_next;
- for (g = e->ex_groups; g != NULL; g = ng) {
- ng = g->gr_next;
- xfree(g->gr_name);
- xfree(g);
- }
- xfree(e->ex_dir);
- xfree(e);
- }
- elist = NULL;
+ ecounter = acounter;
+
+ free_exportlist(&elist);
for (i = 0; i < MCL_MAXTYPES; i++) {
- for (exp = exportlist[i]; exp; exp = exp->m_next) {
- for (e = elist; e != NULL; e = e->ex_next) {
- if (!strcmp(exp->m_export.m_path, e->ex_dir))
- break;
- }
- if (!e) {
- e = (struct exportnode *) xmalloc(sizeof(*e));
- e->ex_next = elist;
- e->ex_groups = NULL;
- e->ex_dir = xstrdup(exp->m_export.m_path);
- elist = e;
- }
+ 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);
- /* We need to check if we should remove
- previous ones. */
+ /* exports to "*" absorb any others */
if (i == MCL_ANONYMOUS && e->ex_groups) {
- for (g = e->ex_groups; g; g = ng) {
- ng = g->gr_next;
- xfree(g->gr_name);
- xfree(g);
- }
- e->ex_groups = NULL;
+ 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 (i != MCL_FQDN && e->ex_groups) {
- struct hostent *hp;
-
- cp = &e->ex_groups;
- while ((c = *cp) != NULL) {
- if (client_gettype (c->gr_name) == MCL_FQDN
- && (hp = gethostbyname(c->gr_name))) {
- hp = hostent_dup (hp);
- if (client_check(exp->m_client, hp)) {
- *cp = c->gr_next;
- xfree(c->gr_name);
- xfree(c);
- xfree (hp);
- if ((c = *cp) == NULL)
- break;
- }
- else
- xfree (hp);
- }
- cp = &(c->gr_next);
- }
- }
-
- if (exp->m_export.e_hostname [0] != '\0') {
- for (g = e->ex_groups; g; g = g->gr_next)
- if (strcmp (exp->m_export.e_hostname,
- g->gr_name) == 0)
- break;
- if (g)
- continue;
- g = (struct groupnode *) xmalloc(sizeof(*g));
- g->gr_name = xstrdup(exp->m_export.e_hostname);
- g->gr_next = e->ex_groups;
- e->ex_groups = g;
- }
+ if (exp->m_export.e_hostname[0] != '\0')
+ insert_group(e, exp->m_export.e_hostname);
}
}
main(int argc, char **argv)
{
char *export_file = _PATH_EXPORTS;
+ char *state_dir = NFS_STATEDIR;
+ char *progname;
+ unsigned int listeners = 0;
int foreground = 0;
int port = 0;
int descriptors = 0;
int c;
+ int vers;
struct sigaction sa;
struct rlimit rlim;
+ /* Set the basename */
+ if ((progname = strrchr(argv[0], '/')) != NULL)
+ progname++;
+ else
+ progname = argv[0];
+
/* Parse the command line options and arguments. */
opterr = 0;
- while ((c = getopt_long(argc, argv, "o:n:Fd:f:p:P:hH:N:V:v", longopts, NULL)) != EOF)
+ while ((c = getopt_long(argc, argv, "o:nFd:f:p:P:hH:N:V:vrs:t:g", 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",
- argv [0], optarg);
- usage(argv [0], 1);
+ progname, optarg);
+ usage(progname, 1);
}
break;
case 'F':
ha_callout_prog = optarg;
break;
case 'h':
- usage(argv [0], 0);
+ 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",
- argv [0], optarg);
- usage(argv [0], 1);
+ progname, optarg);
+ usage(progname, 1);
}
break;
case 'N':
- nfs_version &= ~(1 << (atoi (optarg) - 1));
+ 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':
_rpcfdtype = SOCK_DGRAM;
break;
+ case 'r':
+ reverse_resolve = 1;
+ break;
+ case 's':
+ if ((state_dir = xstrdup(optarg)) == NULL) {
+ fprintf(stderr, "%s: xstrdup(%s) failed!\n",
+ progname, optarg);
+ exit(1);
+ }
+ break;
+ case 't':
+ num_threads = atoi (optarg);
+ break;
case 'V':
- nfs_version |= 1 << (atoi (optarg) - 1);
+ 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("kmountd %s\n", VERSION);
+ printf("%s version " VERSION "\n", progname);
exit(0);
case 0:
break;
case '?':
default:
- usage(argv [0], 1);
+ usage(progname, 1);
}
/* No more arguments allowed. */
- if (optind != argc || !(nfs_version & 0x7))
- usage(argv [0], 1);
+ if (optind != argc || !version_any())
+ usage(progname, 1);
- if (chdir(NFS_STATEDIR)) {
+ if (chdir(state_dir)) {
fprintf(stderr, "%s: chdir(%s) failed: %s\n",
- argv [0], NFS_STATEDIR, strerror(errno));
+ progname, state_dir, strerror(errno));
exit(1);
}
if (getrlimit (RLIMIT_NOFILE, &rlim) != 0)
fprintf(stderr, "%s: getrlimit (RLIMIT_NOFILE) failed: %s\n",
- argv [0], strerror(errno));
+ progname, strerror(errno));
else {
/* glibc sunrpc code dies if getdtablesize > FD_SETSIZE */
if ((descriptors == 0 && rlim.rlim_cur > FD_SETSIZE) ||
rlim.rlim_cur = descriptors;
if (setrlimit (RLIMIT_NOFILE, &rlim) != 0) {
fprintf(stderr, "%s: setrlimit (RLIMIT_NOFILE) failed: %s\n",
- argv [0], strerror(errno));
+ progname, strerror(errno));
exit(1);
}
}
}
/* Initialize logging. */
if (!foreground) xlog_stderr(0);
- xlog_open("mountd");
+ xlog_open(progname);
sa.sa_handler = SIG_IGN;
sa.sa_flags = 0;
if (new_cache)
cache_open();
- if (nfs_version & 0x1)
- rpc_init("mountd", MOUNTPROG, MOUNTVERS,
- mount_dispatch, port);
- if (nfs_version & (0x1 << 1))
- rpc_init("mountd", MOUNTPROG, MOUNTVERS_POSIX,
- mount_dispatch, port);
- if (nfs_version & (0x1 << 2))
- rpc_init("mountd", MOUNTPROG, MOUNTVERS_NFSV3,
- mount_dispatch, port);
+ 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_FATAL, "mountd: could not create listeners\n");
sa.sa_handler = killer;
sigaction(SIGINT, &sa, NULL);
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;
+
+ if (num_threads > 1)
+ fork_workers();
+
+ xlog(L_NOTICE, "Version " VERSION " starting");
my_svc_run();
- xlog(L_ERROR, "Ack! Gack! svc_run returned!\n");
+ xlog(L_ERROR, "RPC service loop terminated unexpectedly. Exiting...\n");
+ unregister_services();
exit(1);
}
" [-o num|--descriptors num] [-f exports-file|--exports-file=file]\n"
" [-p|--port port] [-V version|--nfs-version version]\n"
" [-N version|--no-nfs-version version] [-n|--no-tcp]\n"
-" [-H ha-callout-prog]\n", prog);
+" [-H ha-callout-prog] [-s|--state-directory-path path]\n"
+" [-g|--manage-gids] [-t num|--num-threads=num]\n", prog);
exit(n);
}
projects / nfs-utils.git / blobdiff