#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 "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);
+
+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);
+int new_cache = 0;
+
static struct option longopts[] =
{
{ "foreground", 0, 0, 'F' },
+ { "descriptors", 1, 0, 'o' },
{ "debug", 1, 0, 'd' },
{ "help", 0, 0, 'h' },
{ "exports-file", 1, 0, 'f' },
{ "no-nfs-version", 1, 0, 'N' },
{ "version", 0, 0, 'v' },
{ "port", 1, 0, 'p' },
+ { "no-tcp", 0, 0, 'n' },
{ NULL, 0, 0, 0 }
};
}
/* Now authenticate the intruder... */
- if (!(exp = auth_authenticate("mount", sin, p))) {
+ if (!(exp = auth_authenticate("pathconf", sin, p))) {
return 1;
} else if (stat(p, &stb) < 0) {
xlog(L_WARNING, "can't stat exported dir %s: %s",
{
struct sockaddr_in *sin =
(struct sockaddr_in *) svc_getcaller(rqstp->rq_xprt);
- struct stat stb;
+ struct stat stb, estb;
nfs_export *exp;
char rpath[MAXPATHLEN+1];
char *p = *path;
} else 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) {
+ 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_CROSSMNT)) */
+ ) {
+ 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 &&
+ !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) {
+ /* 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);
+ fh = cache_get_filehandle(exp, v3?64:32, p);
+ if (fh == NULL)
+ *error = NFSERR_ACCES;
+ else
+ *error = NFS_OK;
+ return fh;
} else {
struct nfs_fh_len *fh;
char *export_file = _PATH_EXPORTS;
int foreground = 0;
int port = 0;
+ int descriptors = 256;
int c;
struct sigaction sa;
+ struct rlimit rlim;
/* Parse the command line options and arguments. */
opterr = 0;
- while ((c = getopt_long(argc, argv, "Fd:f:p:P:hN:V:v", longopts, NULL)) != EOF)
+ while ((c = getopt_long(argc, argv, "on:Fd:f:p:P:hN:V:v", longopts, NULL)) != EOF)
switch (c) {
+ case 'o':
+ descriptors = atoi(optarg);
+ if (descriptors <= 0) {
+ fprintf(stderr, "%s: bad descriptors: %s\n",
+ argv [0], optarg);
+ usage(argv [0], 1);
+ }
+ break;
case 'F':
foreground = 1;
break;
case 'N':
nfs_version &= ~(1 << (atoi (optarg) - 1));
break;
+ case 'n':
+ _rpcfdtype = SOCK_DGRAM;
+ break;
case 'V':
nfs_version |= 1 << (atoi (optarg) - 1);
break;
if (optind != argc || !(nfs_version & 0x7))
usage(argv [0], 1);
+ if (chdir(NFS_STATEDIR)) {
+ fprintf(stderr, "%s: chdir(%s) failed: %s\n",
+ argv [0], NFS_STATEDIR, strerror(errno));
+ exit(1);
+ }
+
+ if (getrlimit (RLIMIT_NOFILE, &rlim) != 0) {
+ fprintf(stderr, "%s: getrlimit (RLIMIT_NOFILE) failed: %s\n",
+ argv [0], strerror(errno));
+ exit(1);
+ }
+
+ rlim.rlim_cur = descriptors;
+ if (setrlimit (RLIMIT_NOFILE, &rlim) != 0) {
+ fprintf(stderr, "%s: setrlimit (RLIMIT_NOFILE) failed: %s\n",
+ argv [0], strerror(errno));
+ exit(1);
+ }
+
/* Initialize logging. */
/* xlog_open("mountd"); */
sigaction(SIGHUP, &sa, NULL);
sigaction(SIGINT, &sa, NULL);
sigaction(SIGTERM, &sa, NULL);
+ /* WARNING: the following works on Linux and SysV, but not BSD! */
+ sigaction(SIGCHLD, &sa, NULL);
+
+ /* Daemons should close all extra filehandles ... *before* RPC init. */
+ if (!foreground) {
+ int fd = sysconf (_SC_OPEN_MAX);
+ while (--fd > 2)
+ (void) close(fd);
+ }
+
+ new_cache = check_new_cache();
+ if (new_cache)
+ cache_open();
if (nfs_version & 0x1)
rpc_init("mountd", MOUNTPROG, MOUNTVERS,
- mount_dispatch, port, 0);
+ mount_dispatch, port);
if (nfs_version & (0x1 << 1))
rpc_init("mountd", MOUNTPROG, MOUNTVERS_POSIX,
- mount_dispatch, port, 0);
+ mount_dispatch, port);
if (nfs_version & (0x1 << 2))
rpc_init("mountd", MOUNTPROG, MOUNTVERS_NFSV3,
- mount_dispatch, port, 0);
+ mount_dispatch, port);
sa.sa_handler = killer;
sigaction(SIGHUP, &sa, NULL);
xlog_background();
}
- svc_run();
+ my_svc_run();
xlog(L_ERROR, "Ack! Gack! svc_run returned!\n");
exit(1);
usage(const char *prog, int n)
{
fprintf(stderr,
-"Usage: %s [-Fhnv] [-d kind] [-f exports-file] [-V version]\n"
-" [-N version] [--debug kind] [-p|--port port] [--help] [--version]\n"
-" [--exports-file=file] [--nfs-version version]\n"
-" [--no-nfs-version version]\n", prog);
+"Usage: %s [-F|--foreground] [-h|--help] [-v|--version] [-d kind|--debug kind]\n"
+" [-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", prog);
exit(n);
}
projects / nfs-utils.git / blobdiff