nfs-utils.git/utils/showmount, branch fixrootccache

nfs-utils: split conffile to a separate convenience lib

2017-10-26T12:50:08+00:00

To allow better reuse of the code we split conffile and xlog
into their own separate convenience library, then merge it
back so as to not create extra dependancies for everything

Signed-off-by: Justin Mitchell 
Signed-off-by: Steve Dickson

autoconf: only link binaries that need it to libtirpc

2012-01-16T19:40:21+00:00

This patch is essentially the same as the previous version, but has
been respun to fix up some merge conflicts with some of Chuck's
recent changes.

When we first added tirpc support, we took a "big hammer" approach, and
had it add libtirpc to $LIBS. That had the effect of making it so that
that library was linked into every binary. That's unnecessary, and
wasteful with memory.

Don't let AC_CHECK_LIB add -ltirpc to $LIBS. Instead, have the autoconf
tests set $(LIBTIRPC) in the makefiles, and have the programs that
need it explicitly include that library. In the event that we're not
using libtirpc, then set $LIBTIRPC to a blank string.

This necessitates a change to the bindresvport_sa check too. Since that
library is no longer included in $LIBS, we need to convert that check
to use AC_CHECK_LIB instead of AC_CHECK_FUNCS.

This patch also fixes a subtle bug. If the library was usable, but the
includes were not, the test would set $enable_tirpc to "no", but
HAVE_LIBTIRPC would still be true. That configuration would likely
fail to build.

Signed-off-by: Jeff Layton 
Signed-off-by: Steve Dickson

nfs-utils: add and use nfs_authsys_create

2010-03-01T13:07:34+00:00

The current mount, umount and showmount code uses
authunix_create_default to get an auth handle. The one provided by glibc
returned a truncated list of groups when there were more than 16 groups.
libtirpc however currently does an abort() in this case, which causes
the program to crash and dump core.

nfs-utils just uses these auth handles for the MNT protocol, so the
group list doesn't make a lot of difference here. Add a new function
that creates an auth handle with a supplemental gids list that consists
only of the primary gid. Have nfs-utils use that function anywhere that
it currently uses authunix_create_default. Also, have the caller
properly check for a NULL return from that function.

Signed-off-by: Jeff Layton 
Signed-off-by: Steve Dickson

showmount: Try the highest mount version then fall back to lower ones

2010-01-11T23:26:41+00:00

Showmount should try the highest mount version first then fall
back to the lower ones when the server returns a RPC_PROGVERSMISMATCH
error. The idea being not using the lower mount versions will begin
the process of moving away from NFSv2 support.

Reviewed-by: Chuck Lever 
Signed-off-by: Steve Dickson

showmount command: remove legacy RPC logic

2009-03-04T21:31:10+00:00

Turns out both legacy RPC and TI-RPC have a clnt_create(3) API.  So
there's
really no need to keep the old open-coded transport logic around.

Signed-off-by: Chuck Lever 
Signed-off-by: Steve Dickson

showmount command: Quiesce warning when TI-RPC is disabled

2009-01-07T17:33:09+00:00

Make sure nfs_sm_pgmtbl is not compiled if TI-RPC functions are not
available.  This quiesces the following compiler warning:

  showmount.c:53: warning: nfs_sm_pgmtbl defined but not used

Signed-off-by: Chuck Lever 
Signed-off-by: Steve Dickson

showmount command: support querying IPv6 servers

2008-11-25T13:39:47+00:00

Introduce a version of nfs_get_mount_client() that supports AF_INET6 and
AF_INET server addresses.  If the TI-RPC library is not available when
the showmount command is built, fall back to the legacy RPC user-space
API.

Signed-off-by: Chuck Lever 
Signed-off-by: Steve Dickson

showmount command: move logic to acquire RPC client handle out of main()

2008-11-25T13:38:01+00:00

In preparation to support IPv6 in the showmount command, extract the
logic that parses/acquires the target hostname and converts it into an RPC
client handle to contact the remote mountd service, and move it into its
own function.

Signed-off-by: Chuck Lever 
Signed-off-by: Steve Dickson

showmount command: Remove unused local getport() implementation

2008-11-25T13:35:10+00:00

Clean up: remove showmount.c's local getport() implementation, now that
the showmount command uses the shared one.

Signed-off-by: Chuck Lever 
Signed-off-by: Steve Dickson

showmount command: call nfs_getport instead of local getport

2008-11-25T13:15:51+00:00

Have the showmount command invoke the shared nfs_getport() function
instead of its own local version.  This gives the showmount command
immediate support for querying via rpcbindv3/v4 in addition to
portmapper, and sets the stage for AF_INET6 support in showmount.

Signed-off-by: Chuck Lever 
Signed-off-by: Steve Dickson