nuno zrewidował ten Gist 1 month ago. Przejdź do rewizji
1 file changed, 214 insertions
audit.command.sh(stworzono plik)
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| 1 | + | #!/usr/bin/env bash | |
| 2 | + | ||
| 3 | + | function cmd::audit::on_load() { | |
| 4 | + | flag::register --fix | |
| 5 | + | flag::register --peer | |
| 6 | + | flag::register --type | |
| 7 | + | } | |
| 8 | + | ||
| 9 | + | function cmd::audit::help() { | |
| 10 | + | cat <<EOF | |
| 11 | + | Usage: wgctl audit [options] | |
| 12 | + | ||
| 13 | + | Verify that all peers have the correct iptables firewall rules applied. | |
| 14 | + | Checks expected rule count (including inherited rules and peer-specific blocks) | |
| 15 | + | vs actual iptables state. | |
| 16 | + | ||
| 17 | + | Options: | |
| 18 | + | --peer <name> Audit specific peer only | |
| 19 | + | --type <type> Audit peers of specific device type only | |
| 20 | + | --fix Attempt to auto-repair missing or extra rules | |
| 21 | + | ||
| 22 | + | Output: | |
| 23 | + | ✅ pass — peer has correct rule count | |
| 24 | + | ❌ fail — peer has missing rules (run --fix to repair) | |
| 25 | + | ⚠️ warn — peer has extra rules or configuration issues | |
| 26 | + | ||
| 27 | + | Notes: | |
| 28 | + | Fully blocked peers (removed from WireGuard) show 0 expected fw rules. | |
| 29 | + | Restricted peers (peer-specific blocks) have their block rules included | |
| 30 | + | in the expected count. | |
| 31 | + | ||
| 32 | + | Examples: | |
| 33 | + | wgctl audit | |
| 34 | + | wgctl audit --peer phone-nuno | |
| 35 | + | wgctl audit --type guest | |
| 36 | + | wgctl audit --fix | |
| 37 | + | EOF | |
| 38 | + | } | |
| 39 | + | ||
| 40 | + | function cmd::audit::run() { | |
| 41 | + | local fix=false peer="" type="" | |
| 42 | + | ||
| 43 | + | while [[ $# -gt 0 ]]; do | |
| 44 | + | case "$1" in | |
| 45 | + | --fix) fix=true; shift ;; | |
| 46 | + | --peer) | |
| 47 | + | if [[ -z "${2:-}" ]]; then | |
| 48 | + | log::error "Flag --peer requires a value" | |
| 49 | + | cmd::audit::help | |
| 50 | + | return 1 | |
| 51 | + | fi | |
| 52 | + | peer="$2" | |
| 53 | + | shift 2 | |
| 54 | + | ;; | |
| 55 | + | --type) type="$2"; shift 2 ;; | |
| 56 | + | --help) cmd::audit::help; return ;; | |
| 57 | + | *) | |
| 58 | + | log::error "Unknown flag: $1" | |
| 59 | + | return 1 | |
| 60 | + | ;; | |
| 61 | + | esac | |
| 62 | + | done | |
| 63 | + | ||
| 64 | + | test::reset | |
| 65 | + | log::section "WireGuard Audit" | |
| 66 | + | ||
| 67 | + | # Precompute iptables counts via single Python call | |
| 68 | + | declare -A peer_fw_counts | |
| 69 | + | while IFS=":" read -r peer_name count; do | |
| 70 | + | [[ -n "$peer_name" ]] && peer_fw_counts["$peer_name"]="$count" | |
| 71 | + | done < <(json::audit_fw_counts "$(ctx::clients)") | |
| 72 | + | ||
| 73 | + | test::section "Peer Rules" | |
| 74 | + | while IFS= read -r peer_name; do | |
| 75 | + | [[ -n "$peer" && "$peer_name" != "$peer" ]] && continue | |
| 76 | + | [[ -n "$type" && "$peer_name" != "${type}-"* ]] && continue | |
| 77 | + | cmd::audit::check_peer "$peer_name" "$fix" "${peer_fw_counts[$peer_name]:-0}" | |
| 78 | + | done < <(peers::all) | |
| 79 | + | ||
| 80 | + | test::section "WireGuard Server" | |
| 81 | + | cmd::audit::check_wg "$fix" "$peer" "$type" | |
| 82 | + | ||
| 83 | + | test::section "Rules" | |
| 84 | + | cmd::audit::check_rules | |
| 85 | + | ||
| 86 | + | test::summary | |
| 87 | + | } | |
| 88 | + | ||
| 89 | + | function cmd::audit::check_peer() { | |
| 90 | + | local peer_name="$1" fix="$2" actual="${3:-0}" | |
| 91 | + | local ip rule | |
| 92 | + | ||
| 93 | + | ip=$(peers::get_ip "$peer_name") | |
| 94 | + | rule=$(peers::get_meta "$peer_name" "rule") | |
| 95 | + | ||
| 96 | + | if [[ -z "$rule" ]]; then | |
| 97 | + | test::warn "$peer_name — no rule assigned (effective: $(peers::default_rule "$peer_name"))" | |
| 98 | + | return 0 | |
| 99 | + | fi | |
| 100 | + | ||
| 101 | + | if ! rule::exists "$rule"; then | |
| 102 | + | test::fail "$peer_name — assigned rule '$rule' does not exist" | |
| 103 | + | return 0 | |
| 104 | + | fi | |
| 105 | + | ||
| 106 | + | # Blocked peers have no fw rules (removed from wg0) | |
| 107 | + | if block::is_blocked "$peer_name" 2>/dev/null; then | |
| 108 | + | if [[ "$actual" -eq 0 ]]; then | |
| 109 | + | test::pass "$(printf "%-28s rule=%-15s blocked (no fw rules)" \ | |
| 110 | + | "$peer_name" "$rule")" | |
| 111 | + | else | |
| 112 | + | test::warn "$(printf "%-28s rule=%-15s blocked but has %s fw rules" \ | |
| 113 | + | "$peer_name" "$rule" "$actual")" | |
| 114 | + | fi | |
| 115 | + | return 0 | |
| 116 | + | fi | |
| 117 | + | ||
| 118 | + | # Count expected rules from assigned rule (includes inheritance) | |
| 119 | + | local block_ports block_ips allow_ports allow_ips | |
| 120 | + | block_ports=$(json::count_resolved "$rule" "block_ports") | |
| 121 | + | block_ips=$(json::count_resolved "$rule" "block_ips") | |
| 122 | + | allow_ports=$(json::count_resolved "$rule" "allow_ports") | |
| 123 | + | allow_ips=$(json::count_resolved "$rule" "allow_ips") | |
| 124 | + | local expected=$(( (block_ports + block_ips) * 2 + allow_ports + allow_ips )) | |
| 125 | + | ||
| 126 | + | # Add peer-specific block rules (each ip/port/subnet = 2 rules: NFLOG+DROP) | |
| 127 | + | if block::has_specific_rules "$peer_name" 2>/dev/null; then | |
| 128 | + | while IFS="|" read -r bname btype target port proto; do | |
| 129 | + | [[ -z "$btype" || "$btype" == "full" ]] && continue | |
| 130 | + | (( expected += 2 )) || true | |
| 131 | + | done < <(block::get_rules "$peer_name") | |
| 132 | + | fi | |
| 133 | + | ||
| 134 | + | if [[ "$actual" -eq "$expected" ]]; then | |
| 135 | + | test::pass "$(printf "%-28s rule=%-15s fw: %s/%s" \ | |
| 136 | + | "$peer_name" "$rule" "$actual" "$expected")" | |
| 137 | + | elif [[ "$actual" -gt "$expected" ]]; then | |
| 138 | + | test::warn "$(printf "%-28s rule=%-15s fw: %s/%s (extra rules)" \ | |
| 139 | + | "$peer_name" "$rule" "$actual" "$expected")" | |
| 140 | + | if $fix; then | |
| 141 | + | fw::flush_peer "$ip" | |
| 142 | + | rule::apply "$rule" "$ip" "$peer_name" | |
| 143 | + | block::restore_rules_for "$peer_name" "$ip" | |
| 144 | + | test::pass " Fixed: $peer_name" | |
| 145 | + | fi | |
| 146 | + | else | |
| 147 | + | test::fail "$(printf "%-28s rule=%-15s fw: %s/%s (missing rules)" \ | |
| 148 | + | "$peer_name" "$rule" "$actual" "$expected")" | |
| 149 | + | if $fix; then | |
| 150 | + | rule::apply "$rule" "$ip" "$peer_name" | |
| 151 | + | block::restore_rules_for "$peer_name" "$ip" | |
| 152 | + | test::pass " Fixed: $peer_name" | |
| 153 | + | fi | |
| 154 | + | fi | |
| 155 | + | return 0 | |
| 156 | + | } | |
| 157 | + | ||
| 158 | + | function cmd::audit::check_wg() { | |
| 159 | + | local fix="$1" filter_peer="$2" filter_type="$3" | |
| 160 | + | local wg_peers | |
| 161 | + | wg_peers=$(wg show wg0 peers 2>/dev/null) | |
| 162 | + | ||
| 163 | + | while IFS= read -r peer_name; do | |
| 164 | + | [[ -n "$filter_peer" && "$peer_name" != "$filter_peer" ]] && continue | |
| 165 | + | [[ -n "$filter_type" && "$peer_name" != "${filter_type}-"* ]] && continue | |
| 166 | + | ||
| 167 | + | local pub_key | |
| 168 | + | pub_key=$(keys::public "$peer_name" 2>/dev/null) | |
| 169 | + | [[ -z "$pub_key" ]] && test::fail "$peer_name — missing public key" && continue | |
| 170 | + | ||
| 171 | + | if peers::is_blocked "$peer_name"; then | |
| 172 | + | if echo "$wg_peers" | grep -q "$pub_key"; then | |
| 173 | + | test::fail "$peer_name — blocked but still in wg0" | |
| 174 | + | $fix && peers::remove_from_server "$peer_name" && peers::reload | |
| 175 | + | else | |
| 176 | + | test::pass "$peer_name — correctly blocked (not in wg0)" | |
| 177 | + | fi | |
| 178 | + | else | |
| 179 | + | if echo "$wg_peers" | grep -q "$pub_key"; then | |
| 180 | + | test::pass "$peer_name — present in wg0" | |
| 181 | + | else | |
| 182 | + | test::fail "$peer_name — missing from wg0" | |
| 183 | + | if $fix; then | |
| 184 | + | local ip | |
| 185 | + | ip=$(peers::get_ip "$peer_name") | |
| 186 | + | peers::add_to_server "$peer_name" "$pub_key" "$ip" | |
| 187 | + | peers::reload | |
| 188 | + | fi | |
| 189 | + | fi | |
| 190 | + | fi | |
| 191 | + | done < <(peers::all) | |
| 192 | + | } | |
| 193 | + | ||
| 194 | + | function cmd::audit::check_rules() { | |
| 195 | + | local rules_dir | |
| 196 | + | rules_dir="$(ctx::rules)" | |
| 197 | + | ||
| 198 | + | # Precompute peer counts | |
| 199 | + | declare -A rule_counts | |
| 200 | + | while IFS= read -r peer_name; do | |
| 201 | + | local r | |
| 202 | + | r=$(peers::get_meta "$peer_name" "rule") | |
| 203 | + | [[ -z "$r" ]] && continue | |
| 204 | + | rule_counts["$r"]=$(( ${rule_counts["$r"]:-0} + 1 )) | |
| 205 | + | done < <(peers::all) | |
| 206 | + | ||
| 207 | + | for rule_file in "${rules_dir}"/*.rule; do | |
| 208 | + | [[ -f "$rule_file" ]] || continue | |
| 209 | + | local name | |
| 210 | + | name=$(json::get "$rule_file" "name") | |
| 211 | + | local count=${rule_counts["$name"]:-0} | |
| 212 | + | test::pass "Rule '${name}' — ${count} peers assigned" | |
| 213 | + | done | |
| 214 | + | } | |
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