Support new kernel upcalls for export cache management.

[nfs-utils.git] / utils / mountd / auth.c

diff --git a/utils/mountd/auth.c b/utils/mountd/auth.c
index eb9cdebad2314093efba87b0e20bfb63e9b6da26..e92138918d4b36b91201628f3e1ed884c9954910 100644 (file)
--- a/utils/mountd/auth.c
+++ b/utils/mountd/auth.c
@@ -31,6 +31,8 @@ enum auth_error
 static void            auth_fixpath(char *path);
 static char    *export_file = NULL;
 
+extern int new_cache;
+
 void
 auth_init(char *exports)
 {
@@ -66,22 +68,60 @@ auth_authenticate_internal(char *what, struct sockaddr_in *caller,
 {
        nfs_export              *exp;
 
-       if (!(exp = export_find(hp, path))) {
-               *error = no_entry;
-               return NULL;
-       }
-       if (!exp->m_mayexport) {
+       if (new_cache) {
+               static nfs_export my_exp;
+               static nfs_client my_client;
+               int i;
+               /* return static nfs_export with details filled in */
+               if (my_client.m_naddr != 1 ||
+                   my_client.m_addrlist[0].s_addr != caller->sin_addr.s_addr) {
+                       /* different client to last time, so do a lookup */
+                       char *n;
+                       my_client.m_naddr = 0;
+                       my_client.m_addrlist[0] = caller->sin_addr;
+                       n = client_compose(caller->sin_addr);
+                       if (!n)
+                               return NULL;
+                       strcpy(my_client.m_hostname, *n?n:"DEFAULT");
+                       free(n);
+                       my_client.m_naddr = 1;
+               }
+
+               my_exp.m_client = &my_client;
+
+               exp = NULL;
+               for (i = 0; !exp && i < MCL_MAXTYPES; i++) 
+                       for (exp = exportlist[i]; exp; exp = exp->m_next) {
+                               if (!client_member(my_client.m_hostname, exp->m_client->m_hostname))
+                                       continue;
+                               if (strcmp(path, exp->m_export.e_path))
+                                       continue;
+                               break;
+                       }
                *error = not_exported;
-               return NULL;
+               if (!exp)
+                       return exp;
+
+               my_exp.m_export = exp->m_export;
+               exp = &my_exp;
+
+       } else {
+               if (!(exp = export_find(hp, path))) {
+                       *error = no_entry;
+                       return NULL;
+               }
+               if (!exp->m_mayexport) {
+                       *error = not_exported;
+                       return NULL;
+               }
+
+               if (!(exp->m_export.e_flags & NFSEXP_INSECURE_PORT) &&
+                   (ntohs(caller->sin_port) <  IPPORT_RESERVED/2 ||
+                    ntohs(caller->sin_port) >= IPPORT_RESERVED)) {
+                       *error = illegal_port;
+                       return NULL;
+               }
        }
-
-       if (!(exp->m_export.e_flags & NFSEXP_INSECURE_PORT) &&
-           (ntohs(caller->sin_port) <  IPPORT_RESERVED/2 ||
-            ntohs(caller->sin_port) >= IPPORT_RESERVED)) {
-               *error = illegal_port;
-               return NULL;
-       }
-
        *error = success;
 
        return exp;