Validate route origins against the RPKI and refuse invalid routes
With rpki { caches { ... } } in the configuration the server keeps the
validated ROA payloads of a validator and validates every route from a
peer outside its own AS (RFC 6811). An invalid route is refused, unless
its peer has accept_rpki_invalid. Valid and not-found routes are taken;
validity does not otherwise enter route selection.
Validity is not settled when a route arrives: the data changes every few
minutes. The routes follow, without the peer sending anything again.
- A route refused as invalid is held by its session, out of the table.
When the data changes the session looks at what it holds, and what is
no longer invalid goes into the table. A held route is the peer's to
withdraw or replace like any other.
- A route in the table that becomes invalid is found by a task that
looks through the table when the data changes, at the prefixes the
changed VRPs cover, and is taken out and held by its session.
- If the data expires because no cache confirms it, nothing is invalid
any more and everything held is taken.
- A session holds at most 200,000 routes; past that it asks the peer for
a route refresh when the data changes.
So that the table can be looked through without parsing attributes, an
attribute set's key now has the route's origin AS. Memory per route is
unchanged at 52 bytes on the real table.
Shown: /api/rpki and a section of the status page with the cache, its
state and the age of the data; each route's validity; each peer's count
of held routes. Refusals are recorded under "RPKI invalid". Metrics:
bgp_rpki_vrps and bgp_rpki_updates_total.
Also: Negotiated says whether the peer supports route refresh, and
docs/RFCs.md is brought up to date.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
Rayhaan JaufeerallyandClaude Fable 5.1 committed
1 parent
1f89fb4b13
commit
bdaf226a16
30 files changed
+1486
-109
No files matched your search
@@ -47,7 +47,7 @@ Router ID <b id="s-router-id">...</b>, local AS <b id="s-asn">...</b><br>
|
||||
</div>
|
||||
<div class="righthand">
|
||||
Running on <span id="s-hostname">...</span><br>
|
||||
View: <a href="/metricz">variables</a>, <a href="/api/status">status json</a>, <a href="/api/peers">peers json</a>, <a href="/api/routes/local">originated routes json</a>, <a href="/api/routes/received">received routes json</a>, <a href="/api/routes/rejected">refused routes json</a><br>
|
||||
View: <a href="/metricz">variables</a>, <a href="/api/status">status json</a>, <a href="/api/peers">peers json</a>, <a href="/api/routes/local">originated routes json</a>, <a href="/api/routes/received">received routes json</a>, <a href="/api/routes/rejected">refused routes json</a>, <a href="/api/rpki">rpki json</a><br>
|
||||
<span id="refresh-ctl"></span><br>
|
||||
</div>
|
||||
</div>
|
||||
@@ -63,6 +63,9 @@ View: <a href="/metricz">variables</a>, <a href="/api/status">status json</a>, <
|
||||
<tbody id="peers-body"></tbody>
|
||||
</table>
|
||||
|
||||
<h1 id="rpki">Route origin validation (RPKI)</h1>
|
||||
<div id="rpki-body">...</div>
|
||||
|
||||
<h1 id="local">Originated routes (<span id="local-count">...</span>)</h1>
|
||||
<table class="data">
|
||||
<thead><tr><th>prefix</th><th>origin</th><th>AS path</th><th>MED</th><th>communities</th><th>large communities</th><th>since</th></tr></thead>
|
||||
@@ -83,7 +86,7 @@ from <select id="lookup-peer"><option value="">any peer</option></select>
|
||||
<span id="lookup-note"></span>
|
||||
</form>
|
||||
<table class="data">
|
||||
<thead><tr><th>prefix</th><th>from peer</th><th>AS path</th><th>next hop</th><th>origin</th><th>MED</th><th>local pref</th><th>communities</th><th>large communities</th><th>best</th></tr></thead>
|
||||
<thead><tr><th>prefix</th><th>from peer</th><th>AS path</th><th>next hop</th><th>origin</th><th>MED</th><th>local pref</th><th>communities</th><th>large communities</th><th>RPKI</th><th>best</th></tr></thead>
|
||||
<tbody id="received-body"></tbody>
|
||||
</table>
|
||||
|
||||
@@ -111,7 +114,7 @@ from <select id="lookup-peer"><option value="">any peer</option></select>
|
||||
|
||||
const $ = id => document.getElementById(id);
|
||||
const esc = s => String(s).replace(/[&<>"]/g, c => ({'&':'&','<':'<','>':'>','"':'"'}[c]));
|
||||
const state = { status: null, peers: [], local: [], received: [], refused: [] };
|
||||
const state = { status: null, peers: [], local: [], received: [], refused: [], rpki: null };
|
||||
const DASH = '<span class="dim">-</span>';
|
||||
|
||||
// ---- helpers -----------------------------------------------------------
|
||||
@@ -178,7 +181,7 @@ from <select id="lookup-peer"><option value="">any peer</option></select>
|
||||
<td>${up ? age(p.established_at_unix) : DASH}</td><td>${up ? (p.four_octet_asn ? 'yes' : 'no') : DASH}</td>
|
||||
<td>${up ? esc((p.address_families || []).join(', ')) + addPath(p) : DASH}</td>
|
||||
<td>${up ? p.routes : DASH}</td>
|
||||
<td>${up ? (p.rejected_routes ? `<a class="bad" href="#refused">${p.rejected_routes}</a>` : 0) : DASH}</td><td>${detail}</td></tr>`;
|
||||
<td>${up ? (p.rejected_routes ? `<a class="bad" href="#refused">${p.rejected_routes}</a>` : 0) + (p.held_routes ? ` <span class="dim" title="Refused as RPKI invalid and kept aside, to be taken if that changes">(${p.held_routes} held)</span>` : '') : DASH}</td><td>${detail}</td></tr>`;
|
||||
}).join(''));
|
||||
renderPeerChoices();
|
||||
}
|
||||
@@ -247,12 +250,28 @@ from <select id="lookup-peer"><option value="">any peer</option></select>
|
||||
? `showing ${state.received.length} of ${st.received_routes}, for ${st.received_prefixes} prefixes`
|
||||
: `${state.received.length}${st ? `, for ${st.received_prefixes} prefixes` : ''}`;
|
||||
if (!state.received.length) {
|
||||
setHTML(b, `<tr><td colspan="10" class="dim">${looking ? 'No route matches.' : 'No routes received from peers.'}</td></tr>`); return;
|
||||
setHTML(b, `<tr><td colspan="11" class="dim">${looking ? 'No route matches.' : 'No routes received from peers.'}</td></tr>`); return;
|
||||
}
|
||||
setHTML(b, state.received.map(r => { const s = r.summary; return `<tr>
|
||||
<td class="mono">${esc(r.prefix)}</td><td class="mono">${r.peer_name ? esc(r.peer_name) + ' ' : ''}${esc(r.peer_addr)} <span class="dim">AS${r.peer_asn}${r.path_id ? ` path ${r.path_id}` : ''}</span></td><td class="mono">${asPath(s.as_path)}</td>
|
||||
<td class="mono">${s.next_hop ? esc(s.next_hop) : DASH}</td><td>${s.origin ? esc(s.origin) : DASH}</td><td>${s.med ?? DASH}</td><td>${s.local_pref ?? DASH}</td>
|
||||
<td class="mono">${commList(s.communities, true)}</td><td class="mono">${commList(s.large_communities)}</td><td>${r.best ? '<span class="ok">best</span>' : ''}</td></tr>`; }).join(''));
|
||||
<td class="mono">${commList(s.communities, true)}</td><td class="mono">${commList(s.large_communities)}</td>
|
||||
<td>${r.rpki ? `<span class="${RPKI_CLASS[r.rpki] || ''}">${esc(r.rpki)}</span>` : DASH}</td><td>${r.best ? '<span class="ok">best</span>' : ''}</td></tr>`; }).join(''));
|
||||
}
|
||||
|
||||
const RPKI_CLASS = { valid: 'ok', invalid: 'bad', 'not found': 'dim' };
|
||||
const RPKI_STATE_CLASS = { synchronised: 'ok', synchronising: 'warn', connecting: 'bad' };
|
||||
function renderRpki() {
|
||||
const r = state.rpki, b = $('rpki-body');
|
||||
if (!r) return;
|
||||
if (!r.enabled) { setHTML(b, '<span class="dim">Not configured: routes are not validated.</span>'); return; }
|
||||
const data = r.updated_at_unix
|
||||
? `${r.vrps_ipv4} IPv4 and ${r.vrps_ipv6} IPv6 VRPs at serial ${r.serial ?? '?'}, confirmed ${age(r.updated_at_unix)} ago` +
|
||||
(r.expires_at_unix ? `, dropped in ${until(r.expires_at_unix)} unless confirmed again` : '')
|
||||
: '<span class="warn">no data: every route is "not found" and none is refused as invalid</span>';
|
||||
setHTML(b, `Cache <span class="mono">${esc(r.cache || '?')}</span>: <span class="${RPKI_STATE_CLASS[r.state] || ''}">${esc(r.state)}</span>` +
|
||||
` <span class="dim">(RTR version ${r.protocol_version})</span>. ${data}.` +
|
||||
(r.last_error ? `<br><span class="bad">Last error:</span> ${esc(r.last_error)}` : ''));
|
||||
}
|
||||
|
||||
// For each peer a line that says how many and why, then its latest few.
|
||||
@@ -290,7 +309,8 @@ from <select id="lookup-peer"><option value="">any peer</option></select>
|
||||
renderReceived();
|
||||
}
|
||||
async function loadRefused() { state.refused = await getJSON('/api/routes/rejected'); renderRefused(); }
|
||||
async function loadAll() { await Promise.all([loadStatus(), loadPeers(), loadLocal(), loadReceived(), loadRefused()]); }
|
||||
async function loadRpki() { state.rpki = await getJSON('/api/rpki'); renderRpki(); }
|
||||
async function loadAll() { await Promise.all([loadStatus(), loadPeers(), loadLocal(), loadReceived(), loadRefused(), loadRpki()]); }
|
||||
|
||||
// ---- events ------------------------------------------------------------
|
||||
function logEvent(html) {
|
||||
|
||||
Reference in new issue
Block a user