malmert
0f2a342b75
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106 lines
2.8 KiB
Bash
Executable File
106 lines
2.8 KiB
Bash
Executable File
#!/bin/bash
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set -e
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DB_NAME="mitm_db"
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DB_USER="mitm_user"
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DB_PASS="mitm_password"
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LAN_SUBNET="192.168.178.0/24"
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echo "[1] Installing PostgreSQL…"
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sudo apt update -y
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sudo apt install -y postgresql postgresql-contrib
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echo "[2] Configuring PostgreSQL to listen on all addresses…"
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PG_CONF="/etc/postgresql/$(ls /etc/postgresql)/main/postgresql.conf"
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sudo sed -i "s/^#listen_addresses =.*/listen_addresses = '*'/" "$PG_CONF"
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echo "[3] Updating pg_hba.conf for LAN + localhost access…"
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PG_HBA="/etc/postgresql/$(ls /etc/postgresql)/main/pg_hba.conf"
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# Add localhost
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if ! grep -Eq "^[ ]*host[ ]+all[ ]+all[ ]+127.0.0.1/32" "$PG_HBA"; then
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echo "host all all 127.0.0.1/32 md5" | sudo tee -a "$PG_HBA"
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fi
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# Add LAN
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if ! grep -q "$LAN_SUBNET" "$PG_HBA"; then
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echo "host all all $LAN_SUBNET md5" | sudo tee -a "$PG_HBA"
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fi
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echo "[4] Restarting PostgreSQL…"
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sudo systemctl restart postgresql
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echo "[5] Creating database + user (idempotent)…"
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sudo -u postgres psql <<EOF
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DO \$\$
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BEGIN
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IF NOT EXISTS (SELECT FROM pg_roles WHERE rolname = '$DB_USER') THEN
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CREATE USER $DB_USER WITH PASSWORD '$DB_PASS';
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END IF;
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IF NOT EXISTS (SELECT FROM pg_database WHERE datname = '$DB_NAME') THEN
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CREATE DATABASE $DB_NAME OWNER $DB_USER;
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END IF;
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END
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\$\$;
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EOF
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echo "[6] Creating packets table (idempotent)…"
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sudo -u postgres psql -d "$DB_NAME" <<EOF
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CREATE TABLE IF NOT EXISTS packets (
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id BIGSERIAL PRIMARY KEY,
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timestamp TIMESTAMPTZ DEFAULT NOW(),
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-- Interface metadata
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iface VARCHAR(64),
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direction VARCHAR(64),
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-- Ethernet
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src_mac MACADDR,
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dst_mac MACADDR,
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eth_type VARCHAR(64),
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-- VLAN
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vlan_id INTEGER,
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-- IP layer
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src_ip INET,
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dst_ip INET,
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ip_proto VARCHAR(64),
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-- Transport layer
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src_port INTEGER,
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dst_port INTEGER,
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-- Packet metadata
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length INTEGER,
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-- Full packet dump
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raw BYTEA
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);
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EOF
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echo "[7] Grant privileges to user…"
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sudo -u postgres psql -d $DB_NAME <<EOF
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-- Grant all table privileges
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GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO $DB_USER;
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-- Grant sequence permissions (needed for SERIAL / BIGSERIAL)
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GRANT USAGE, SELECT, UPDATE ON ALL SEQUENCES IN SCHEMA public TO $DB_USER;
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-- Change ownership to ensure the user can manage the table
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ALTER TABLE packets OWNER TO $DB_USER;
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ALTER SEQUENCE packets_id_seq OWNER TO $DB_USER;
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-- Ensure future tables & sequences also get permissions
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ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL PRIVILEGES ON TABLES TO $DB_USER;
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ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT USAGE, SELECT, UPDATE ON SEQUENCES TO $DB_USER;
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-- Create indexes for faster queries
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CREATE INDEX IF NOT EXISTS idx_packets_timestamp ON packets(timestamp DESC);
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CREATE INDEX IF NOT EXISTS idx_packets_src_ip ON packets(src_ip);
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EOF
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echo "Done. PostgreSQL is ready for LAN + localhost connections."
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