Prem Chaitanya Prathi a6dc13d4b1
feat(mix): integrate mix protocol with extended kademlia + RLN spam protection
Rebased poc/mix-spam-protection onto origin/master. Bundles:

- Extended kademlia discovery integration for mix node pool
  (waku/discovery/waku_kademlia.nim, tools/confutils/cli_args.nim)
- RLN spam protection plugin (vacp2p/mix-rln-spam-protection) wired in:
  WakuMix gains mixRlnSpamProtection + publishMessage callback,
  per-hop proof generation / verification, membership coordination
  via /mix/rln/metadata/v1 content topic
- chat2mix sim app: filter-subscribes to spam-protection coordination
  topic, defers publishing until mix node pool is populated
- Makefile: automated librln_mix_v2.0.0.a build via
  scripts/build_rln_mix.sh and mix-librln target
- simulations/mixnet: 5-node mixnet sim infrastructure
  (config1-4.toml, run_*.sh, build_setup.sh, setup_credentials.nim,
  README, roundtrip_check.sh automated round-trip verification)

Rebase fixes:
- Plugin previously vendored as submodule; now a nimble requires entry
  pinned to logos-co/mix-rln-spam-protection-plugin@037f8e10
- waku.nimble: zlib < 0.2 pin to keep nimble lock resolution stable
  (upstream zlib HEAD bumped to 0.2.0)
- apps/chat2mix/config_chat2mix.nim: replace
  `defaultValue: parseIpAddress("...")` with IpAddress literal,
  works around confutils macro generating
  `defaultValueHelpName(): string {.raises: [].}` that violates the
  raises pragma when stringifying a parseIpAddress call
- config.nims: nimble setup --noNimblePath reordering

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-20 17:26:01 +05:30

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#!/bin/bash
cd "$(dirname "$0")"
MIXNET_DIR=$(pwd)
cd ../..
ROOT_DIR=$(pwd)
source "$ROOT_DIR/env.sh"
# Prefer explicitly provided RLN library path, otherwise use the one built by `make mix-librln`.
LIBRLN_PATH=${LIBRLN_PATH:-"$ROOT_DIR/build/librln_mix_v2.0.0.a"}
# Clean up old files first
rm -f "$MIXNET_DIR/rln_tree.db" "$MIXNET_DIR"/rln_keystore_*.json
echo "Building and running credentials setup..."
# Compile to temp location, then run from mixnet directory
nim c -d:release --mm:refc \
--passL:"$LIBRLN_PATH" --passL:-lm \
-o:/tmp/setup_credentials_$$ \
"$MIXNET_DIR/setup_credentials.nim" 2>&1 | tail -30
# Run from mixnet directory so files are created there
cd "$MIXNET_DIR"
/tmp/setup_credentials_$$
# Clean up temp binary
rm -f /tmp/setup_credentials_$$
# Verify output
if [ -f "rln_tree.db" ]; then
echo ""
echo "Tree file ready at: $(pwd)/rln_tree.db"
ls -la rln_keystore_*.json 2>/dev/null | wc -l | xargs -I {} echo "Generated {} keystore files"
else
echo "Setup failed - rln_tree.db not found"
exit 1
fi