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Split a couple of functions with address-family dependent logic.

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Signed-off-by: Tom Eastep <teastep@shorewall.net>
This commit is contained in:
Tom Eastep 2012-05-13 15:53:02 -07:00
parent 60bde6231a
commit 9ea233d55f
1 changed files with 53 additions and 39 deletions
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92
Shorewall/lib.core
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@ -171,44 +171,6 @@ interface_is_up() {
[ -n "$($IP -$g_family link list dev $1 2> /dev/null | grep -e '[<,]UP[,>]')" ]
}
#
# Determine if interface is usable from a Netfilter perspective
#
interface_is_usable() # $1 = interface
{
local status;
status=0
if [ "$1" != lo -a "$COMMAND" != enable ]; then
if [ $g_family -eq 4 ]; then
if interface_is_up $1 && [ "$(find_first_interface_address_if_any $1)" != 0.0.0.0 ]; then
run_isusable_exit $1
status=$?
fi
else
if interface_is_up $1 && [ "$(find_first_interface_address_if_any $1)" != :: ]; then
run_isusable_exit $1
status=$?
fi
fi
fi
return $status
}
#
# Find interface addresses--returns the set of addresses assigned to the passed
# device
#
find_interface_addresses() # $1 = interface
{
if [ $g_family -eq 4 ]; then
$IP -f inet addr show $1 2> /dev/null | grep inet\ | sed 's/\s*inet //;s/\/.*//;s/ peer.*//'
else
$IP -f inet6 addr show $1 2> /dev/null | grep 'inet6 2' | sed 's/\s*inet6 //;s/\/.*//;s/ peer.*//'
fi
}
#
# echo the list of networks routed out of a given interface
#
@ -659,9 +621,35 @@ EOF
#################################################################################
# IPv4-specific Functions
#################################################################################
#
# Determine if interface is usable from a Netfilter perspective
#
interface_is_usable() # $1 = interface
{
local status;
status=0
if [ "$1" != lo -a "$COMMAND" != enable ]; then
if interface_is_up $1 && [ "$(find_first_interface_address_if_any $1)" != 0.0.0.0 ]; then
run_isusable_exit $1
status=$?
fi
fi
return $status
}
#
# Find interface addresses--returns the set of addresses assigned to the passed device
#
find_interface_addresses() # $1 = interface
{
$IP -f inet addr show $1 2> /dev/null | grep inet\ | sed 's/\s*inet //;s/\/.*//;s/ peer.*//'
}
#
# Find the value 'weight' in the passed arguments then echo the next value
#
find_weight() {
while [ $# -gt 1 ]; do
[ "x$1" = xweight ] && echo $2 && return
@ -1032,6 +1020,32 @@ get_all_bcasts()
#################################################################################
# IPv6-specific Functions
#################################################################################
#
# Determine if interface is usable from a Netfilter perspective
#
interface_is_usable() # $1 = interface
{
local status;
status=0
if [ "$1" != lo -a "$COMMAND" != enable ]; then
if interface_is_up $1 && [ "$(find_first_interface_address_if_any $1)" != :: ]; then
run_isusable_exit $1
status=$?
fi
fi
return $status
}
#
# Find interface addresses--returns the set of addresses assigned to the passed device
#
find_interface_addresses() # $1 = interface
{
$IP -f inet6 addr show $1 2> /dev/null | grep 'inet6 2' | sed 's/\s*inet6 //;s/\/.*//;s/ peer.*//'
}
#
# Get all interface addresses with VLSMs
#