here is a quick and dirty patch to mountd.c to allow submounts.
It just looks for the export with the longest matching path.
It could catch more errors but the kernel will catch what is
missed here.
--- mountd.c.orig Sat Sep 12 00:01:49 1998
+++ mountd.c Sat Sep 12 00:04:41 1998
@@ -204,6 +204,8 @@
nfs_export *exp;
char rpath[MAXPATHLEN+1];
char *p = *path;
+ char epath[MAXPATHLEN+1];
+ char *ep;
if (*p == '\0')
p = "/";
@@ -216,12 +218,22 @@
rpath[MAXPATHLEN] = '\0';
p = rpath;
}
+ ep = strcpy(epath, p);
/* Now authenticate the intruder... */
- if (!(exp = auth_authenticate("mount", sin, p))) {
+ /* Find the longest export the matches */
+ while (strchr(ep, '/')) {
+ char *pt;
+fprintf(stderr, "%s\n", ep);
+ if (exp = auth_authenticate("mount", sin, ep)) {
+ break;
+ }
+ *strrchr(ep, '/') = '\0';
+ }
+ if (!strchr(ep, '/')) {
*error = NFSERR_ACCES;
} else if (stat(p, &stb) < 0) {
- xlog(L_WARNING, "can't stat exported dir %s: %s",
+ xlog(L_WARNING, "can't stat dir %s: %s",
p, strerror(errno));
if (errno == ENOENT)
*error = NFSERR_NOENT;
---------------------------------
G. Allen Morris III
-
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