unbound: drop odhcpd leases with wrong field count

Signed-off-by: Eric Luehrsen <ericluehrsen@gmail.com>
This commit is contained in:
Eric Luehrsen 2018-08-16 21:37:43 -04:00
parent 38ced675aa
commit 59617f076d
2 changed files with 59 additions and 58 deletions

View file

@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=unbound
PKG_VERSION:=1.7.3
PKG_RELEASE:=5
PKG_RELEASE:=6
PKG_LICENSE:=BSD-3-Clause
PKG_LICENSE_FILES:=LICENSE

View file

@ -37,6 +37,12 @@
sub( /.*\//, "", cdr2 ) ;
if ( hst !~ /^[[:alnum:]]([-[:alnum:]]*[[:alnum:]])?$/ ) {
# that is not a valid host name (RFC1123)
hst = "-" ;
}
if ( bisolt == 1 ) {
# TODO: this might be better with a substituion option,
# or per DHCP pool do-not-DNS option, but its getting busy here.
@ -50,17 +56,9 @@
}
if ( cls == "ipv4" ) {
if ( NF == 8 ) {
# odhcpd errata in field format without host name
adr = $8 ; hst = "-" ; cdr = adr ;
sub( /\/.*/, "", adr ) ;
sub( /.*\//, "", cdr ) ;
}
if (( cdr == 32 ) && ( hst != "-" )) {
# only for provided hostnames and full /32 assignments
if ((cls == "ipv4") && (hst != "-") && (cdr == 32) && (NF == 9)) {
# IPV4 ; only for provided hostnames and full /32 assignments
# NF=9 ; odhcpd errata in field format without host name
ptr = adr ; qpr = "" ; split( ptr, ptr, "." ) ;
slaac = slaac_eui64( id ) ;
@ -118,10 +116,9 @@
close( cmd ) ;
}
}
}
else {
if (( cdr == 128 ) && ( hst != "-" )) {
else if ((cls != "ipv4") && (hst != "-") && (9 <= NF) && (NF <= 10)) {
if (cdr == 128) {
if ( bconf == 1 ) {
x = ( "local-data: \"" fqdn ". 300 IN AAAA " adr "\"" ) ;
y = ( "local-data-ptr: \"" adr " 300 " fqdn "\"" ) ;
@ -137,7 +134,7 @@
}
}
if (( cdr2 == 128 ) && ( hst != "-" )) {
if (cdr2 == 128) {
if ( bconf == 1 ) {
x = ( "local-data: \"" fqdn ". 300 IN AAAA " adr2 "\"" ) ;
y = ( "local-data-ptr: \"" adr2 " 300 " fqdn "\"" ) ;
@ -153,6 +150,10 @@
}
}
}
else {
# dump non-conforming lease records
}
}
##############################################################################