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Optionally allow ULA addresses in prepare.sh #752

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Merged
guvenc merged 1 commit into from
Jan 7, 2026
Merged

Optionally allow ULA addresses in prepare.sh #752

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12 changes: 10 additions & 2 deletions hack/prepare.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@ set -Eeuo pipefail

OPT_MULTIPORT=false
OPT_SYNC_BRIDGE=false
OPT_ALLOW_ULA=false

BLUEFIELD_IDENTIFIERS=("MT_0000000543" "MT_0000000541")
MAX_NUMVFS_POSSIBLE=126
Expand Down Expand Up @@ -307,13 +308,17 @@ function get_ipv6() {
# 1. Have a "global" scope.
# 2. Have a prefix length of 64 or more.
# 3. Must be in Globally Unique Address (GUA) range (2 or 3).
# (unless --allow-ula is set, then also fc and fd range is allowed)
local addr_regex
addr_regex='^(2|3)'
[[ "$OPT_ALLOW_ULA" == "true" ]] && addr_regex='^(2|3|f[cd])'
local global_address
global_address=$(echo "$ip_json" | jq -r '
global_address=$(echo "$ip_json" | jq -r --arg addr_re "$addr_regex" '
.[0].addr_info[]
| select(
.scope == "global" and
.prefixlen >= 64 and
(.local | test("^(2|3)"))
(.local | test($addr_re))
)
| .local' | head -n 1)

Expand Down Expand Up @@ -403,6 +408,9 @@ while [[ $# -gt 0 ]]; do
--sync-bridge)
OPT_SYNC_BRIDGE=true
;;
--allow-ula)
OPT_ALLOW_ULA=true
;;
*)
err "Invalid argument $1"
esac
Expand Down
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