* NSM for Linux.
*/
-#include "config.h"
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
#include <fcntl.h>
#include <limits.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
+#include <errno.h>
#include <arpa/inet.h>
#include "misc.h"
#include "statd.h"
#include "notlist.h"
+#include "ha-callout.h"
notify_list * rtnl = NULL; /* Run-time notify list. */
notify_list *clnt;
struct in_addr my_addr;
#ifdef RESTRICTED_STATD
- struct in_addr mon_addr, caller;
+ struct in_addr caller;
#else
struct hostent *hostinfo = NULL;
#endif
goto failure;
}
+#if 0
+ This is not usable anymore. Linux-kernel can be configured to use
+ host names with NSM so that multi-homed hosts are handled properly.
+ NeilBrown 15mar2007
+
/* 3. mon_name must be an address in dotted quad.
* Again, specific to the linux kernel lockd.
*/
mon_name);
goto failure;
}
-#else
+#endif
+#endif
/*
* Check hostnames. If I can't look them up, I won't monitor. This
* might not be legal, but it adds a little bit of safety and sanity.
*/
/* must check for /'s in hostname! See CERT's CA-96.09 for details. */
- if (strchr(mon_name, '/')) {
- note(N_CRIT, "SM_MON request for hostname containing '/': %s",
- mon_name);
+ if (strchr(mon_name, '/') || mon_name[0] == '.') {
+ note(N_CRIT, "SM_MON request for hostname containing '/' "
+ "or starting '.': %s", mon_name);
note(N_CRIT, "POSSIBLE SPOOF/ATTACK ATTEMPT!");
goto failure;
} else if (gethostbyname(mon_name) == NULL) {
note(N_WARNING, "gethostbyname error for %s", mon_name);
goto failure;
- } else if (!(hostinfo = gethostbyname(my_name))) {
+ }
+#ifndef RESTRICTED_STATD
+ if (!(hostinfo = gethostbyname(my_name))) {
note(N_WARNING, "gethostbyname error for %s", my_name);
goto failure;
} else
sprintf(path, "%s/%s", SM_DIR, mon_name);
if ((fd = open(path, O_WRONLY|O_SYNC|O_CREAT, S_IRUSR|S_IWUSR)) < 0) {
/* Didn't fly. We won't monitor. */
- note(N_ERROR, "creat(%s) failed: %m", path);
+ note(N_ERROR, "creat(%s) failed: %s", path, strerror (errno));
nlist_free(NULL, clnt);
free(path);
goto failure;
}
free(path);
+ /* PRC: do the HA callout: */
+ ha_callout("add-client", mon_name, my_name, -1);
nlist_insert(&rtnl, clnt);
close(fd);
char *mon_name = argp->mon_name,
*my_name = argp->my_id.my_name;
struct my_id *id = &argp->my_id;
+#ifdef RESTRICTED_STATD
+ struct in_addr caller;
+#endif
result.state = MY_STATE;
+#ifdef RESTRICTED_STATD
+ /* 1. Reject anyone not calling from 127.0.0.1.
+ * Ignore the my_name specified by the caller, and
+ * use "127.0.0.1" instead.
+ */
+ caller = svc_getcaller(rqstp->rq_xprt)->sin_addr;
+ if (caller.s_addr != htonl(INADDR_LOOPBACK)) {
+ note(N_WARNING,
+ "Call to statd from non-local host %s",
+ inet_ntoa(caller));
+ goto failure;
+ }
+ my_name = "127.0.0.1";
+#endif
+
/* Check if we're monitoring anyone. */
if (!(clnt = rtnl)) {
note(N_WARNING,
/* Match! */
dprintf(N_DEBUG, "UNMONITORING %s for %s",
mon_name, my_name);
+
+ /* PRC: do the HA callout: */
+ ha_callout("del-client", mon_name, my_name, -1);
+
nlist_free(&rtnl, clnt);
xunlink(SM_DIR, mon_name, 1);
clnt = NL_NEXT(clnt);
}
+#ifdef RESTRICTED_STATD
+ failure:
+#endif
note(N_WARNING, "Received erroneous SM_UNMON request from %s for %s",
my_name, mon_name);
return (&result);
short int count = 0;
static sm_stat result;
notify_list *clnt;
+ char *my_name = argp->my_name;
+#ifdef RESTRICTED_STATD
+ struct in_addr caller;
+
+ /* 1. Reject anyone not calling from 127.0.0.1.
+ * Ignore the my_name specified by the caller, and
+ * use "127.0.0.1" instead.
+ */
+ caller = svc_getcaller(rqstp->rq_xprt)->sin_addr;
+ if (caller.s_addr != htonl(INADDR_LOOPBACK)) {
+ note(N_WARNING,
+ "Call to statd from non-local host %s",
+ inet_ntoa(caller));
+ goto failure;
+ }
+ my_name = "127.0.0.1";
+#endif
result.state = MY_STATE;
if (!(clnt = rtnl)) {
note(N_WARNING, "Received SM_UNMON_ALL request from %s "
- "while not monitoring any hosts", argp->my_name);
+ "while not monitoring any hosts", my_name);
return (&result);
}
- while ((clnt = nlist_gethost(clnt, argp->my_name, 1))) {
+ while ((clnt = nlist_gethost(clnt, my_name, 1))) {
if (NL_MY_PROC(clnt) == argp->my_proc &&
NL_MY_PROG(clnt) == argp->my_prog &&
NL_MY_VERS(clnt) == argp->my_vers) {
sizeof (mon_name) - 1);
mon_name[sizeof (mon_name) - 1] = '\0';
temp = NL_NEXT(clnt);
+ /* PRC: do the HA callout: */
+ ha_callout("del-client", mon_name, my_name, -1);
nlist_free(&rtnl, clnt);
xunlink(SM_DIR, mon_name, 1);
++count;
if (!count) {
dprintf(N_DEBUG, "SM_UNMON_ALL request from %s with no "
- "SM_MON requests from it.", argp->my_name);
+ "SM_MON requests from it.", my_name);
}
-
+#ifdef RESTRICTED_STATD
+ failure:
+#endif
return (&result);
}
projects / nfs-utils.git / blobdiff