1
0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-05 09:14:03 +00:00
Commit Graph

25 Commits

Author SHA1 Message Date
Baptiste Daroussin
4d6ab32f99 pxeboot: make the tftp loader use the option root-path directive
pxeboot in tftp loader mode (when built with LOADER_TFTP_SUPPORT) now
prefix all the path to open with the path obtained via the option 'root-path'
directive.

This allows to be able to use the traditional content /boot out of box. Meaning
it now works pretty much like all other loaders. It simplifies hosting hosting
multiple version of FreeBSD on a tftp server.

As a consequence, pxeboot does not look anymore for a pxeboot.4th (which was
never provided)

Note: that pxeboot in tftp loader mode is not built by default.

Reviewed by:	rpokala
Relnotes:	yes
Sponsored by:	Gandi.net
Differential Revision:	https://reviews.freebsd.org/D4590
2015-12-16 17:13:09 +00:00
Ian Lepore
7668336c8e Add a divisor parameter to twiddle() so that callers can request that output
only happen on every Nth call.  Update the existing twiddle() calls done in
various IO loops to roughly reflect the relative IO sizes.  That is, tftp
and nfs call twiddle() on every 1K block, ufs on every filesystem block,
so the network calls now use a much larger divisor than disk IO calls.

Also add a new twiddle_divisor() function that allows an application to set
a global divisor that is applied on top of the per-call divisors.  Nothing
calls this yet, but loader(8) will be using it to further throttle the
cursor for slow serial consoles.
2014-12-22 20:42:36 +00:00
Alexander Kabaev
b13ba46dbf Unbreak zfsloader with LOADER_TFTP_SUPPORT on
Only accept 'net' and 'pxe' devices as underlying transport
in tftp.c on x86. Prior to this change tftp code would attempt
to send packets over any boot device, including zfs one with
predictably sad results.

Approved by: re (gjb)
MFC After: 1 month
2013-10-09 21:33:19 +00:00
Ed Schouten
cb301c1a81 Add placeholder code for prepending pathnames to tftp.
At work we have a single tftp server that provides installation data for
a variety of operating systems. I'd rather place our FreeBSD-related
files in a subdirectory, instead of the root.

It would be nice if this setting could be run-time configurable, but at
least in our specific case, this is not possible, as pxeboot is
chainloaded through pxelinux.

Sponsored by:	Kumina bv
2011-12-22 09:36:37 +00:00
Craig Rodrigues
23a5bce73f Fixes to newer tftp code in libstand:
(1) Coding style changes.
 (2) If the server does not acknowledge any blocksize option,
     revert to the default blocksize of 512 bytes.
 (3) Send ACK if the first packet happens to be the last packet.
 (4) Do not accept blocksize greater than what was requested.
 (5) Drop any unwanted OACK received if a tftp transfer is already
     in progress.
 (6) Terminate incomplete transfers with a special no-error ERROR packet.
     Otherwise we rely on the tftp server to time out, which it does
     eventually, after re-sending the last packet several times and spamming
     the system log about it every time.  This idea is borrowed from the
     PXE client, which does exactly that.

Submitted by:  Alexander Kabaev <kan@FreeBSD.org>
Reviewed and Tested by: Santhanakrishnan Balraj <sbalraj at juniper dot net>
2011-06-24 03:50:54 +00:00
Craig Rodrigues
32ecdb308f Bring back following change which was undone in previous commit:
------------------------------------------------------------------------
    r172854 | marius | 2007-10-21 10:03:18 -0700 (Sun, 21 Oct 2007) | 16 lines
    Changed paths:
       M /head/lib/libstand/tftp.c

    - Given that we tell the compiler that struct ip is packed and 32-bit
      aligned, GCC 4.2.1 also generates code for sendudp() that assumes
      this alignment. GCC 4.2.1 however doesn't 32-bit align wbuf, causing
      the loader to crash due to an unaligned access of wbuf in sendudp()
      when netbooting sparc64. Solve this by specifying wbuf as packed and
      32-bit aligned, too. As for lastdata and readudp() this currently is
      no issue when compiled with GCC 4.2.1, though give lastdata the same
      treatment as wbuf for consistency and possibility of being affected
      in the future. [1]
    - Sprinkle const on a lookup table.
    ------------------------------------------------------------------------
2011-06-15 23:22:35 +00:00
Craig Rodrigues
4c474d5c2f (1) When sending the TFTP RRQ packet to read a file,
send along the "blksize" option specified in RFC2348,
     and the "tsize" option specified in RFC2349.

     Add code to parse the TFTP Option Acknowledgement (OACK) packet as
     specified in RFC2347.

     For TFTP servers which support the "blksize" option, we can
     specify a TFTP Data block size larger than the default 512 bytes
     specified in RFC1350.  This offers greater read performance when
     downloading files.

     We request an initial size of 1428 bytes, which is less than the
     Ethernet MTU of 1500 bytes.  If the TFTP server sends back an OACK
     packet, then use the block size specified in the OACK packet.
     Most times it is usually the same value as what we request.
     If the TFTP server supports RFC2348, we will see performance improvements
     by transferring files over TFTP with larger block sizes.

     If we do not get back an OACK packet, then we most likely we
     are interoperating with a legacy TFTP server that does not
     support TFTP extension options, so default to the block size of
     512 bytes.

(2)  If the "tftp.blksize" environment variable is set, then
     take that value and use it when sending the TFTP RRQ packet,
     instead of 1428.  This allows us to set different values of
     "tftp.blksize" in the loader, so that we can test out different
     TFTP block sizes at run time.

Obtained from: Juniper Networks
Fixed by:  rodrigc
2011-06-15 22:13:22 +00:00
Craig Rodrigues
dc438c8ec8 Currently tftp code in the loader retransmits the previous packet if it receives any
unwanted packet(non-tftp). Change this to retransmit the packet(request or ack) only after
a timeout.

Obtained from:	Juniper Networks
Fixed by: Santhanakrishnan Balraj <sbalraj at juniper dot net>
2011-06-15 22:08:18 +00:00
Craig Rodrigues
6e4c6f18f7 Added sendrecv_tftp function instead of sendrecv for use by tftp.
In sendrecv_tftp:
    * Upon receving an unexpected block of data or error, resend the ACK
      immediately instead of waiting till the expiry of receive data timeout
      to resend the ACK.
    * change the receive timeout value between retries to be 2xMINTMO.

Obtained from: Juniper Networks
Fixed by: Santhanakrishnan Balraj <sbalraj at juniper dot net>
2011-06-15 22:04:14 +00:00
Craig Rodrigues
51f95b0a42 Rename DEBUG macro to TFTP_DEBUG, to be more consistent with
debug macros in other files.
2011-05-03 07:46:02 +00:00
Craig Rodrigues
74ff69fe44 Switch to ANSI function prototypes in a few places.
Get rid of some unused parameter warnings.
2011-05-03 04:44:50 +00:00
Ed Schouten
f6b7b70512 Fix minor issues in libstand.
- Don't call tftp_makereq() with too many arguments.
- Don't forget to close one of the comments.

Submitted by:	Pawel Worach
2009-05-31 21:29:07 +00:00
Marius Strobl
da65d6fe83 - Given that we tell the compiler that struct ip is packed and 32-bit
aligned, GCC 4.2.1 also generates code for sendudp() that assumes
  this alignment. GCC 4.2.1 however doesn't 32-bit align wbuf, causing
  the loader to crash due to an unaligned access of wbuf in sendudp()
  when netbooting sparc64. Solve this by specifying wbuf as packed and
  32-bit aligned, too. As for lastdata and readudp() this currently is
  no issue when compiled with GCC 4.2.1, though give lastdata the same
  treatment as wbuf for consistency and possibility of being affected
  in the future. [1]
- Sprinkle const on a lookup table.

Reported by:		marcel [1]
Submitted by:		yongari [1]
Reviewed by:		marcel [1]
MFC after:		5 days
2007-10-21 17:03:18 +00:00
Stefan Farfeleder
5a9e72a72b Don't add integers to void pointers. 2004-10-03 15:58:20 +00:00
Marcel Moolenaar
9c73bdcf24 Fix a machine check abort caused by the EFI loader trying to open a
file in the NFS file system when the underlying device is not a
network device. A Sparc64 specific hack for this exact problem was
already present (nfs.c:1.9, tftp.c:1.10), but the problem is not
specific to Sparc64. The hack has been promoted to a non-i386 test
because on non-i386 architectures it's either impossible to have
non-network devices coexist in the same loader with the NFS FS, or
network and non-network device coexist and NFS filesystems can only
be used on top of network devices. I believe i386 pxeboot is where
this does not hold.

The root cause of this problem is in open.c where each file system
is tried until no more file systems exist or a file system returns
success. There's no notion of a list of valid file systems given
the underlying device and the non-existence of a file can cause
the invalid combination to be tried.
2003-03-03 00:58:47 +00:00
Jake Burkholder
f9751ec2cd Add a hack (kludge?) to avoid trying to access files backed by disk
devices as though they were backed by network devices.
2002-07-07 23:01:36 +00:00
David E. O'Brien
be04b6d190 Remove 'register' keyword. 2002-03-21 23:39:28 +00:00
Matthew Dillon
e74b6a84ce Add __FBSDID()s to libstand 2001-09-30 22:28:01 +00:00
Mike Heffner
646bd49ed1 Reset errno so that subsequent TFTP requests don't fail after the
first failure.

PR:		misc/25502
MFC after:	2 weeks
2001-06-30 21:39:09 +00:00
Mike Smith
dc46262eaa The shortest valid TFTP packet is 4 bytes, not 8.
PR:		misc/25503
Submitted by:	Jim Browne <jbrowne@jbrowne.com>
MFC after:	1 week
2001-05-28 22:25:44 +00:00
Paul Saab
3894088f17 When TFTP tries to open a file, it is expecting struct open_file
member f_devdata to be a pointer to a socket number.  When currdev
is "pxe", that assumption is correct.  When currdev is "disk*", that
assumption is incorrect.

Submitted by:	Jim Browne <jbrowne@jbrowne.com>
2000-12-08 05:02:12 +00:00
Jonathan Lemon
efb8ff8532 Add a readdir function to the loader fsops vector, and implement the
functionality for some of the filesystesms.
2000-04-29 20:47:10 +00:00
Paul Saab
b1875374d3 Break out sendudp and readudp from net.c. This is for PXE, so it
can use its own UDP interface.
2000-04-08 01:18:04 +00:00
Mike Smith
4ce36a791b Path arguments to *_open functions should be const, but we were mangling
them.

Submitted by:	write-protected text segment in BTX
1998-09-18 22:58:01 +00:00
Mike Smith
6b4f575cb1 This is libstand; a support library for standalone executables (eg. bootstrap
modules).
Obtained from: NetBSD, with some architectural changes and many additions.
1998-08-20 08:19:55 +00:00