meta-google: gbmc-bridge: Remove custom ip parsing logic
Change-Id: I455ab70094cfdc79b38097a838051f51b3c852da
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-google/recipes-google/ncsi/files/gbmc-ncsi-nft.sh.in b/meta-google/recipes-google/ncsi/files/gbmc-ncsi-nft.sh.in
index 34ca4e5..727c8b6 100644
--- a/meta-google/recipes-google/ncsi/files/gbmc-ncsi-nft.sh.in
+++ b/meta-google/recipes-google/ncsi/files/gbmc-ncsi-nft.sh.in
@@ -38,22 +38,23 @@
if [ -n "$ip6" ]; then
contents+=" ip6 daddr $ip6/128 goto ncsi_legacy_input"$'\n'
- # Pad out to 4 hextets with no trailing semicolons
- local pfx=
- pfx="${ip6%::}"
- while true; do
- # Count `:` in `pfx` by removing them and diffing their lengths
- local nos="${pfx//:/}"
- (( ${#pfx} - ${#nos} >= 3 )) && break
- pfx+=":0"
- done
-
+ local ip_bytes=()
+ ip_to_bytes ip_bytes "$ip6"
# If our address has enough spare bits for appending the BMC suffix
# then we add a rule that allows the BMC subnet. That is, we need a /64
# as input.
- if (( ${#pfx} - ${#nos} == 3 )); then
- contents+=" ip6 saddr != ${pfx}:fd00::/72 ip6 daddr"
- contents+=" ${pfx}:fd00::/72 goto ncsi_gbmc_br_pub_input"$'\n'
+ local i
+ for (( i = 8; i < 16; i++ )); do
+ if (( ip_bytes[$i] != 0 )); then
+ ip_bytes=()
+ break
+ fi
+ done
+ if (( ${#ip_bytes[@]} != 0 )); then
+ ip_bytes[8]=0xfd
+ local pfx="$(ip_bytes_to_str ip_bytes)"
+ contents+=" ip6 saddr != $pfx/72 ip6 daddr"
+ contents+=" $pfx/72 goto ncsi_gbmc_br_pub_input"$'\n'
fi
fi