Stuff

diff --git a/ChangeLog b/ChangeLog
index 09277b3a5a95254ee2674b15b75d6b4e6988b886..60fd487275d4a8d1c8142bb6b195970597bdeac4 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2003-05-23  NeilBrown <neilb@cse.unsw.edu.au>
+
+       * utils/mountd/cache.c(cache_get_filehandle): take a separate path
+       argument as we might not be getting the filehandle for the
+       mountpoint.
+       * utils/mountd/mountd.c(get_rootfh): pass real path when calling
+       cache_get_filehandle.
+       * utils/mountd/mountd.c(get_rootfh): check export point and
+       requested directory are on the same filesystem, and complain if
+       not.
+       
 2003-05-22  NeilBrown <neilb@cse.unsw.edu.au>
 
        * utils/mountd/auth.c(auth_authenticate_internal): make sure

diff --git a/utils/mountd/cache.c b/utils/mountd/cache.c
index 1d1567d2012f97bed71a1a5a1786a73bdb845934..c5bc53fa3023166a4d3f51d8ce99a3806c1ba72f 100644 (file)
--- a/utils/mountd/cache.c
+++ b/utils/mountd/cache.c
@@ -335,7 +335,7 @@ void cache_export(nfs_export *exp)
  * } <> /proc/fs/nfs/filehandle
  */
 struct nfs_fh_len *
-cache_get_filehandle(nfs_export *exp, int len)
+cache_get_filehandle(nfs_export *exp, int len, char *p)
 {
        FILE *f = fopen("/proc/fs/nfs/filehandle", "r+");
        char buf[200];
@@ -345,7 +345,7 @@ cache_get_filehandle(nfs_export *exp, int len)
                return NULL;
 
        qword_print(f, exp->m_client->m_hostname);
-       qword_print(f, exp->m_export.e_path);
+       qword_print(f, p);
        qword_printint(f, len); 
        qword_eol(f);
        

diff --git a/utils/mountd/mountd.c b/utils/mountd/mountd.c
index 145a4daa555691ec4748287205eb2bb1a98b6175..b1bce1dfc9c45846a25d237e3af552104fb323d7 100644 (file)
--- a/utils/mountd/mountd.c
+++ b/utils/mountd/mountd.c
@@ -25,7 +25,7 @@
 #include "rpcmisc.h"
 
 extern void    cache_open(void);
-extern struct nfs_fh_len *cache_get_filehandle(nfs_export *exp, int len);
+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);
@@ -242,7 +242,7 @@ get_rootfh(struct svc_req *rqstp, dirpath *path, int *error, int v3)
 {
        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;
@@ -272,6 +272,16 @@ get_rootfh(struct svc_req *rqstp, dirpath *path, int *error, int v3)
        } 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 (new_cache) {
                /* This will be a static private nfs_export with just one
                 * address.  We feed it to kernel then extract the filehandle,
@@ -280,7 +290,7 @@ get_rootfh(struct svc_req *rqstp, dirpath *path, int *error, int v3)
                struct nfs_fh_len  *fh;
 
                cache_export(exp);
-               fh = cache_get_filehandle(exp, v3?64:32);
+               fh = cache_get_filehandle(exp, v3?64:32, p);
                if (fh == NULL) 
                        *error = NFSERR_ACCES;
                else