netbiosName-cellname-20040306
authorJeffrey Altman <jaltman@mit.edu>
Sat, 6 Mar 2004 21:38:48 +0000 (21:38 +0000)
committerJeffrey Altman <jaltman@secure-endpoints.com>
Sat, 6 Mar 2004 21:38:48 +0000 (21:38 +0000)
Add support for a new form of automatic share name generation

        \\netbiosName\cellname

which means that on systems with the loopback adapter you can
now refer to the athena.mit.edu afs cell as \\afs\athena.mit.edu\

This is implemented within cm_FindShare().  If the share name is not
one of the special ones and cannot be found in the Submounts table,
check to see if it is a known cell name,  If so, create a path to
the share of /afs/sharename with the "sharename" being lower cased.
(I hope there are no cell names in mixed or upper case.  This won't
work.)

src/WINNT/afsd/smb.c

index 217b871..f8650db 100644 (file)
@@ -1159,7 +1159,7 @@ int smb_FindShare(smb_vc_t *vcp, smb_packet_t *inp, char *shareName,
        smb_user_t *uidp;
        char temp[1024];
        DWORD sizeTemp;
-    char sbmtpath[256];
+    char sbmtpath[MAX_PATH];
     char *p, *q;
        HKEY parmKey;
        DWORD code;
@@ -1196,75 +1196,87 @@ int smb_FindShare(smb_vc_t *vcp, smb_packet_t *inp, char *shareName,
      * to handle ioctl requests 
      */
        if (_stricmp(shareName, "ioctl$") == 0) {
-               *pathNamep = "/.__ioctl__";
+               *pathNamep = strdup("/.__ioctl__");
                return 1;
        }
 
 #ifndef DJGPP
-        strcpy(sbmtpath, "afsdsbmt.ini");
+    strcpy(sbmtpath, "afsdsbmt.ini");
 #else /* DJGPP */
-        strcpy(sbmtpath, cm_confDir);
-        strcat(sbmtpath, "/afsdsbmt.ini");
+    strcpy(sbmtpath, cm_confDir);
+    strcat(sbmtpath, "/afsdsbmt.ini");
 #endif /* !DJGPP */
        len = GetPrivateProfileString("AFS Submounts", shareName, "",
-                                     pathName, sizeof(pathName), sbmtpath);
-       if (len == 0 || len == sizeof(pathName) - 1) {
-               *pathNamep = NULL;
-               return 0;
-       }
-        
+                                  pathName, sizeof(pathName), sbmtpath);
+       if (len != 0 && len != sizeof(pathName) - 1) {
         /* We can accept either unix or PC style AFS pathnames.  Convert
-           Unix-style to PC style here for internal use. */
+         * Unix-style to PC style here for internal use. 
+         */
         p = pathName;
         if (strncmp(p, cm_mountRoot, strlen(cm_mountRoot)) == 0)
-          p += strlen(cm_mountRoot);  /* skip mount path */
+            p += strlen(cm_mountRoot);  /* skip mount path */
         q = p;
         while (*q) {
-          if (*q == '/') *q = '\\';    /* change to \ */
-          q++;
+            if (*q == '/') *q = '\\';    /* change to \ */
+            q++;
         }
 
-       while (1)
-       {
-               if (var = smb_stristr(p, VNUserName)) {
-                       uidp = smb_FindUID(vcp, ((smb_t *)inp)->uid, 0);
-                       if (uidp && uidp->unp)
-                         smb_subst(p, var, sizeof(VNUserName),
-                                      uidp->unp->name);
-                       else
-                         smb_subst(p, var, sizeof(VNUserName),
-                                      " ");
-                       if (uidp)
-                smb_ReleaseUID(uidp);
-               }
-               else if (var = smb_stristr(p, VNLCUserName)) {
-                       uidp = smb_FindUID(vcp, ((smb_t *)inp)->uid, 0);
-                       if (uidp && uidp->unp)
-                         strcpy(temp, uidp->unp->name);
-                       else strcpy(temp, " ");
-                       _strlwr(temp);
-                       smb_subst(p, var, sizeof(VNLCUserName), temp);
-                       if (uidp)
-                smb_ReleaseUID(uidp);
-               }
-               else if (var = smb_stristr(p, VNComputerName)) {
-                       sizeTemp = sizeof(temp);
-                       GetComputerName((LPTSTR)temp, &sizeTemp);
-                       smb_subst(p, var, sizeof(VNComputerName),
-                                 temp);
-               }
-               else if (var = smb_stristr(p, VNLCComputerName)) {
-                       sizeTemp = sizeof(temp);
-                       GetComputerName((LPTSTR)temp, &sizeTemp);
-                       _strlwr(temp);
-                       smb_subst(p, var, sizeof(VNLCComputerName),
-                                 temp);
-               }
-               else break;
+        while (1)
+        {
+            if (var = smb_stristr(p, VNUserName)) {
+                uidp = smb_FindUID(vcp, ((smb_t *)inp)->uid, 0);
+                if (uidp && uidp->unp)
+                    smb_subst(p, var, sizeof(VNUserName),uidp->unp->name);
+                else
+                    smb_subst(p, var, sizeof(VNUserName)," ");
+                if (uidp)
+                    smb_ReleaseUID(uidp);
+            }
+            else if (var = smb_stristr(p, VNLCUserName)) 
+            {
+                uidp = smb_FindUID(vcp, ((smb_t *)inp)->uid, 0);
+                if (uidp && uidp->unp)
+                    strcpy(temp, uidp->unp->name);
+                else 
+                    strcpy(temp, " ");
+                _strlwr(temp);
+                smb_subst(p, var, sizeof(VNLCUserName), temp);
+                if (uidp)
+                    smb_ReleaseUID(uidp);
+            }
+            else if (var = smb_stristr(p, VNComputerName)) 
+            {
+                sizeTemp = sizeof(temp);
+                GetComputerName((LPTSTR)temp, &sizeTemp);
+                smb_subst(p, var, sizeof(VNComputerName), temp);
+            }
+            else if (var = smb_stristr(p, VNLCComputerName)) 
+            {
+                sizeTemp = sizeof(temp);
+                GetComputerName((LPTSTR)temp, &sizeTemp);
+                _strlwr(temp);
+                smb_subst(p, var, sizeof(VNLCComputerName), temp);
+            }
+            else     
+                break;
+        }
+        *pathNamep = strdup(p);
+        return 1;
+    } 
+    else /* create  \\<netbiosName>\<cellname>  */
+    {
+        if (cm_GetCell_Gen(shareName, temp, CM_FLAG_CREATE))
+        {   
+            if (!stricmp(shareName, temp)) {  /* no partial matches allowed */
+                sprintf(pathName,"/%s/",shareName);
+                *pathNamep = strdup(strlwr(pathName));
+                               return 1;
+            }
+        } 
        }
-
-       *pathNamep = strdup(p);
-       return 1;
+    /* failure */
+    *pathNamep = NULL;
+    return 0;
 }
 
 /* find a dir search structure by cookie value, and return it held.