BSD 4_4 release

[unix-history] / usr / src / sys / nfs / nfsdiskless.h

diff --git a/usr/src/sys/nfs/nfsdiskless.h b/usr/src/sys/nfs/nfsdiskless.h
index 4acdf54..74e6b7b 100644 (file)
--- a/usr/src/sys/nfs/nfsdiskless.h
+++ b/usr/src/sys/nfs/nfsdiskless.h
@@ -1,13 +1,39 @@
 /*
 /*

- * Copyright (c) 1991 The Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1991, 1993
+ *     The Regents of the University of California.  All rights reserved.

  *
  * This code is derived from software contributed to Berkeley by
  * Rick Macklem at The University of Guelph.
  *
  *
  * This code is derived from software contributed to Berkeley by
  * Rick Macklem at The University of Guelph.
  *

- * %sccs.include.redist.c%
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.

  *
  *

- *     @(#)nfsdiskless.h       7.1 (Berkeley) %G%
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *     @(#)nfsdiskless.h       8.1 (Berkeley) 6/10/93

  */
 
 /*
  */
 
 /*


@@ -15,18 +41,26 @@
  * This structure is used by nfs_mountroot() to set up the root and swap
  * vnodes plus do a partial ifconfig(8) and route(8) so that the critical net
  * interface can communicate with the server.
  * This structure is used by nfs_mountroot() to set up the root and swap
  * vnodes plus do a partial ifconfig(8) and route(8) so that the critical net
  * interface can communicate with the server.

- * For now it is statically initialized in swapvmunix.c, but someday a primary
- * bootstrap should fill it in.
+ * The primary bootstrap is expected to fill in the appropriate fields before
+ * starting vmunix. Whether or not the swap area is nfs mounted is determined
+ * by the value in swdevt[0]. (equal to NODEV --> swap over nfs)
+ * Currently only works for AF_INET protocols.
+ * NB: All fields are stored in net byte order to avoid hassles with
+ * client/server byte ordering differences.

  */
 struct nfs_diskless {
  */
 struct nfs_diskless {

-       struct ifaliasreq myif;         /* Info. for partial ifconfig */
-       struct sockaddr mygateway;      /* Default gateway for "route add" */
-       struct nfs_args swap_args;      /* Mount args for swap file */
-       u_char          swap_fh[NFS_FHSIZE]; /* Swap file's file handle */
-       struct sockaddr swap_saddr;     /* Address of swap server */
-       char            *swap_hostnam;  /* Host name for mount pt */
-       struct nfs_args root_args;      /* Mount args for root fs */
-       u_char          root_fh[NFS_FHSIZE]; /* File handle of root dir */
-       struct sockaddr root_saddr;     /* Address of root server */
-       char            *root_hostnam;  /* Host name for mount pt */
+       struct ifaliasreq myif;                 /* Default interface */
+       struct sockaddr_in mygateway;           /* Default gateway */
+       struct nfs_args swap_args;              /* Mount args for swap file */
+       u_char          swap_fh[NFS_FHSIZE];    /* Swap file's file handle */
+       struct sockaddr_in swap_saddr;          /* Address of swap server */
+       char            swap_hostnam[MNAMELEN]; /* Host name for mount pt */
+       int             swap_nblks;             /* Size of server swap file */
+       struct ucred    swap_ucred;             /* Swap credentials */
+       struct nfs_args root_args;              /* Mount args for root fs */
+       u_char          root_fh[NFS_FHSIZE];    /* File handle of root dir */
+       struct sockaddr_in root_saddr;          /* Address of root server */
+       char            root_hostnam[MNAMELEN]; /* Host name for mount pt */
+       long            root_time;              /* Timestamp of root fs */
+       char            my_hostnam[MAXHOSTNAMELEN]; /* Client host name */

 };
 };