iptables-save: module loading corrections
1. Ignore the absence of /proc/net/ip_tables_names, which happens
when x_tables.ko is not loaded. This is equivalent to having
x_tables.ko, but no tabe modules, loaded. As such, success should
be returned.
2. Load table when explicitly requested by the -t option. Users might
expect "*foo" etc. to be output when `iptables-save -t foo` is
executed. So do autoload x_tables.ko and the table in this case.
*. Do this for both iptables-save and ip6tables-save, and adjust
the manpages for the new -M (modprobe program location) option that
is introduced.
Based upon a patch by Soren Hansen.
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
diff --git a/ip6tables-save.8 b/ip6tables-save.8
index c8b3e96..47eb44a 100644
--- a/ip6tables-save.8
+++ b/ip6tables-save.8
@@ -21,7 +21,7 @@
.SH NAME
ip6tables-save \- Save IPv6 Tables
.SH SYNOPSIS
-.BR "ip6tables-save " "[-c] [-t table]"
+.BR "ip6tables-save " "[-M modprobe] [-c] [-t table]"
.br
.SH DESCRIPTION
.PP
@@ -29,6 +29,10 @@
is used to dump the contents of an IPv6 Table in easily parseable format
to STDOUT. Use I/O-redirection provided by your shell to write to a file.
.TP
+\fB\-M\fP \fImodprobe_program\fP
+Specify the path to the modprobe program. By default, iptables-save will
+inspect /proc/sys/kernel/modprobe to determine the executable's path.
+.TP
\fB\-c\fR, \fB\-\-counters\fR
include the current values of all packet and byte counters in the output
.TP