fix: update setup script for PostgreSQL configuration and refine packets table structure

setup_database.sh

@@ -17,12 +17,12 @@ sudo sed -i "s/^#listen_addresses =.*/listen_addresses = '*'/" "$PG_CONF"
 echo "[3] Updating pg_hba.conf for LAN + localhost access…"
 PG_HBA="/etc/postgresql/$(ls /etc/postgresql)/main/pg_hba.conf"
 
-# Add localhost entry if missing
+# Add localhost
 if ! grep -Eq "^[ ]*host[ ]+all[ ]+all[ ]+127.0.0.1/32" "$PG_HBA"; then
     echo "host    all     all     127.0.0.1/32        md5" | sudo tee -a "$PG_HBA"
 fi
 
-# Add LAN entry if missing
+# Add LAN
 if ! grep -q "$LAN_SUBNET" "$PG_HBA"; then
     echo "host    all     all     $LAN_SUBNET        md5" | sudo tee -a "$PG_HBA"
 fi
@@ -34,12 +34,10 @@ echo "[5] Creating database + user (idempotent)…"
 sudo -u postgres psql <<EOF
 DO \$\$
 BEGIN
-    -- Create user if missing
     IF NOT EXISTS (SELECT FROM pg_roles WHERE rolname = '$DB_USER') THEN
         CREATE USER $DB_USER WITH PASSWORD '$DB_PASS';
     END IF;
 
-    -- Create database if missing
     IF NOT EXISTS (SELECT FROM pg_database WHERE datname = '$DB_NAME') THEN
         CREATE DATABASE $DB_NAME OWNER $DB_USER;
     END IF;
@@ -47,41 +45,33 @@ END
 \$\$;
 EOF
 
-echo "[6] Creating table (idempotent)…"
+echo "[6] Creating packets table (idempotent)…"
 sudo -u postgres psql -d "$DB_NAME" <<EOF
-CREATE TABLE IF NOT EXISTS packet_log (
+CREATE TABLE IF NOT EXISTS packets (
     id BIGSERIAL PRIMARY KEY,
     timestamp TIMESTAMPTZ DEFAULT NOW(),
 
-    -- ingress / egress
+    -- interface metadata
+    iface VARCHAR(64),
     direction VARCHAR(16),
 
-    -- eBPF metadata
-    interface VARCHAR(32),
-
-    -- Ethernet layer
+    -- Ethernet
     src_mac VARCHAR(32),
     dst_mac VARCHAR(32),
-    eth_type VARCHAR(16),
+    eth_type INTEGER,
 
-    -- IP layer
+    -- IP
     src_ip VARCHAR(64),
     dst_ip VARCHAR(64),
-    ip_protocol VARCHAR(16),
+    protocol INTEGER,
+    length INTEGER,
 
-    -- Transport layer
-    src_port INTEGER,
-    dst_port INTEGER,
-    packet_len INTEGER,
+    -- eBPF data (reserved for later)
+    ebpf_verdict VARCHAR(32),
+    ebpf_chain VARCHAR(64),
 
-    -- nftables metadata
-    nft_hook VARCHAR(32),
-    nft_table_name VARCHAR(64),    -- <— renamed (fix)
-    nft_chain VARCHAR(64),
-    nft_verdict VARCHAR(32),
-
-    -- raw packet
-    raw_packet BYTEA
+    -- raw packet bytes
+    raw BYTEA
 );
 EOF