update manpages for showmount and mountd

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

diff --git a/utils/mountd/auth.c b/utils/mountd/auth.c
index eb9cdebad2314093efba87b0e20bfb63e9b6da26..183c9ea8c5b27b747925b832405333543eba97f0 100644 (file)
--- a/utils/mountd/auth.c
+++ b/utils/mountd/auth.c
@@ -6,7 +6,9 @@
  * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
  */
 
-#include "config.h"
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
 
 #include <sys/stat.h>
 #include <netinet/in.h>
@@ -30,6 +32,10 @@ enum auth_error
 
 static void            auth_fixpath(char *path);
 static char    *export_file = NULL;
+static nfs_export my_exp;
+static nfs_client my_client;
+
+extern int new_cache;
 
 void
 auth_init(char *exports)
@@ -40,7 +46,7 @@ auth_init(char *exports)
        xtab_mount_write();
 }
 
-int
+time_t
 auth_reload()
 {
        struct stat             stb;
@@ -49,14 +55,15 @@ auth_reload()
        if (stat(_PATH_ETAB, &stb) < 0)
                xlog(L_FATAL, "couldn't stat %s", _PATH_ETAB);
        if (stb.st_mtime == last_modified)
-               return 0;
+               return last_modified;
        last_modified = stb.st_mtime;
 
        export_freeall();
+       memset(&my_client, 0, sizeof(my_client));
        // export_read(export_file);
        xtab_export_read();
 
-       return 1;
+       return last_modified;
 }
 
 static nfs_export *
@@ -66,22 +73,52 @@ 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) {
+               int i;
+               /* return static nfs_export with details filled in */
+               char *n;
+               my_client.m_addrlist[0] = caller->sin_addr;
+               n = client_compose(caller->sin_addr);
+               *error = unknown_host;
+               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)) {
+                   (ntohs(caller->sin_port) <  IPPORT_RESERVED/2 ||
+                    ntohs(caller->sin_port) >= IPPORT_RESERVED)) {
                *error = illegal_port;
                return NULL;
        }
-
        *error = success;
 
        return exp;
@@ -127,7 +164,6 @@ auth_authenticate(char *what, struct sockaddr_in *caller, char *path)
                if (p == epath) p++;
                *p = '\0';
        }
-       free(hp);
 
        switch (error) {
        case bad_path: