#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;
+
+/* 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;
+
static struct option longopts[] =
{
{ "foreground", 0, 0, 'F' },
- { "descriptors", 0, 0, 'o' },
+ { "descriptors", 1, 0, 'o' },
{ "debug", 1, 0, 'd' },
{ "help", 0, 0, 'h' },
{ "exports-file", 1, 0, 'f' },
{ "version", 0, 0, 'v' },
{ "port", 1, 0, 'p' },
{ "no-tcp", 0, 0, 'n' },
+ { "ha-callout", 1, 0, 'H' },
{ NULL, 0, 0, 0 }
};
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;
+}
+
bool_t
mount_null_1_svc(struct svc_req *rqstp, void *argp, void *resp)
{
if (!(exp = auth_authenticate("unmount", sin, p))) {
return 1;
}
- mountlist_del(exp, p);
- export_reset (exp);
+ 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);
+ }
return 1;
}
}
/* 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",
bool_t
mount_mnt_3_svc(struct svc_req *rqstp, dirpath *path, mountres3 *res)
{
- static int flavors[] = { AUTH_NULL, AUTH_UNIX };
+#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 nfs_fh_len *fh;
xlog(D_CALL, "MNT3(%s) called", *path);
ok->fhandle.fhandle3_len = fh->fh_size;
ok->fhandle.fhandle3_val = fh->fh_handle;
- ok->auth_flavors.auth_flavors_len = 2;
+ ok->auth_flavors.auth_flavors_len
+ = sizeof(flavors)/sizeof(flavors[0]);
ok->auth_flavors.auth_flavors_val = flavors;
}
return 1;
{
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_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 &&
+ !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;
stb.st_dev, stb.st_ino);
}
if (fh != NULL) {
- mountlist_add(exp, p);
+ mountlist_add(exp->m_client->m_hostname, p);
*error = NFS_OK;
export_reset (exp);
return fh;
char *export_file = _PATH_EXPORTS;
int foreground = 0;
int port = 0;
- int descriptors = 256;
+ int descriptors = 0;
int c;
struct sigaction sa;
struct rlimit rlim;
/* Parse the command line options and arguments. */
opterr = 0;
- while ((c = getopt_long(argc, argv, "o:Fd:f:p:P:hN:V:v", longopts, NULL)) != EOF)
+ while ((c = getopt_long(argc, argv, "o:n:Fd:f:p:P:hH:N:V:v", longopts, NULL)) != EOF)
switch (c) {
case 'o':
descriptors = atoi(optarg);
case 'f':
export_file = optarg;
break;
+ case 'H': /* PRC: specify a high-availability callout program */
+ ha_callout_prog = optarg;
+ break;
case 'h':
usage(argv [0], 0);
break;
exit(1);
}
- if (getrlimit (RLIMIT_NOFILE, &rlim) != 0) {
+ 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);
+ argv [0], strerror(errno));
+ else {
+ /* glibc sunrpc code dies if getdtablesize > FD_SETSIZE */
+ if ((descriptors == 0 && rlim.rlim_cur > FD_SETSIZE) ||
+ descriptors > FD_SETSIZE)
+ descriptors = FD_SETSIZE;
+ if (descriptors) {
+ 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"); */
+ if (!foreground) xlog_stderr(0);
+ xlog_open("mountd");
sa.sa_handler = SIG_IGN;
sa.sa_flags = 0;
sigaction(SIGHUP, &sa, NULL);
sigaction(SIGINT, &sa, NULL);
sigaction(SIGTERM, &sa, NULL);
+ sigaction(SIGPIPE, &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);
mount_dispatch, port);
sa.sa_handler = killer;
- sigaction(SIGHUP, &sa, NULL);
sigaction(SIGINT, &sa, NULL);
sigaction(SIGTERM, &sa, NULL);
+ sa.sa_handler = sig_hup;
+ sigaction(SIGHUP, &sa, NULL);
auth_init(export_file);
if (fd > 2) (void) close(fd);
}
setsid();
- xlog_background();
}
- svc_run();
+ my_svc_run();
xlog(L_ERROR, "Ack! Gack! svc_run returned!\n");
exit(1);
"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);
+" [-N version|--no-nfs-version version] [-n|--no-tcp]\n"
+" [-H ha-callout-prog]\n", prog);
exit(n);
}
projects / nfs-utils.git / blobdiff