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* dashboard: hand over a token reading the member list onlytv3 days2-5/+5
| | | | | | | | | | | | | Review finding 8, second part: opening another member's dashboard handed it a token reading everything (READ_ALL). A member writes its own dashboard URL, so a malicious one received a read-everything token under the operator's identity: /admin/config, /admin/changes, /admin/log and the rest, on every node the user reaches. The token handed over now reads the member list only (READ_MEMBERS, as sent to subscribed nodes), which is enough to draw the map; the user logs in at the other dashboard to see more. With 1151 it lasts five minutes and isn't refreshed past them.
* login: a token asked to live less ends its session with ittv3 days1-7/+28
| | | | | | | | | | | | Review finding 8, first part: a refreshed token's lifetime came from the refresh request, and it kept the session's end. So the five-minute read-all token a dashboard hands to another member's refreshed into a 12-hour one, renewable for seven days. A token asked to live less (`lifetime`, at login or refresh) now ends its session with it: nobody refreshes it past its end, its holder included, and a session begun from it (POST /auth/session) ends then too.
* rules: an expired remake aborted by any membertv3 days2-1/+105
| | | | | | | | | | | | | | | | Under a policy, a remake's decision was taken from its coordinator only. A node aborting an expired remake whose coordinator is gone (DELETE /admin/remakes, after abortableAt) was refused by its own judgement (403), so such a remake could never be decided. The decision is now also taken from a user who may write it (the protocol writers), and an abort from any member once the remake expired a grace period ago (abortableAt, by the coordinator's grace period in the proposal). The rules have no clock of their own, so that is judged by the time the change says it was made: the writer's word, so a member could abort a remake early, as it could ask its coordinator to, but never commit one. Before then, an abort stays a request the coordinator applies.
* rules: a carried remake record taken from the coordinator its snapshot namestv3 days6-24/+86
| | | | | | | | | | | | | | | | | Review finding 7, second part: a record carried into a new epoch whole (proposal and decision in one change) was taken from any member, for any remake ID. A member could write a forged record, decision included, for a fresh ID in a single change. The snapshot's epoch metadata now names the remake's coordinator, as the quorum built it. The carried-record exception holds only in a later epoch, only for the remake that made it, and only from the coordinator its snapshot names, where there is no record yet. Wire version 43: the snapshot, and so the epoch ID, changes. The review suggested carrying the record inside the snapshot instead. The snapshot can't hold the decision, which names the snapshot's own hash. So the snapshot vouches for who may carry the record instead.
* rules: protocol maps judged by what is done to themtv3 days1-2/+46
| | | | | | | | | | | | | Review finding 7, first part: the protocol-map rules looked at paths, not actions. Any member could delete _continuum/members, /votes or /remakes whole, or rewrite another remake's proposal (its coordinator) and then write its decision. What holds the members' entries, votes and remake records, and a remake's record itself, are now made by a member only where there is none; a proposal is written only where there is none. Replacing or removing any of them is left to a user who may write there (the protocol writers). An abort asked for stays any member's.
* state: a document swap keeps the signatures of the changes it keepstv3 days2-3/+26
| | | | | | | | | | | | | Review 2.2: swap_document forgot every signature. After dropping changes taken unjudged (or a rejoin into the same epoch), the node could vouch for none of the changes it kept: under signatures required, those building on an actor waited for that actor's next signature, and for an actor that stopped writing, forever. Signatures::kept_for keeps the signatures of the changes the new document holds, checks each actor's latest again, and keeps those waiting for their changes. This node's replayed changes are signed at once, as before.
* screen: a signature vouches for its change and what it builds ontv3 days3-10/+108
| | | | | | | | | | | | | | | Review finding 5: vouching by (actor, seq) isn't bound to a hash. A member can make a change under another member's actor at a seq that member's signature covers. The change is then taken as vouched, and if it breaks a rule, the honest member is refused as a whole and logged as the one whose own change broke the rules. A signature now vouches for its change and the changes of its actor it builds on: in the document, as before; among received changes, those it reaches through the batch's dependencies. A received change under an actor at a seq whose change the document holds (a signature verified up to it) is a fork: refused as forged, never as its actor's node's, not told back in REFUSALS, and logged with the peer that brought it.
* simtest: the forged write refused by whichever node judges it firsttv3 days1-4/+9
| | | | | | | a_swarm_judging_every_change waited for c's forged write to be refused by a, b and d each. The first to judge it tells c, which drops it before the others may have it: wait for a refusal on any of them, then for c to drop it.
* simtest: refused by whichever node judges firsttv3 days1-10/+18
| | | | | | | | In a_strict_swarm and sealed_values, c's forged writes were waited for to be refused by a and by b. Whichever judges them first tells c, which drops them before the other may have judged them (it waits for their signature, or never gets them): wait for a refusal on either, then for c to drop them.
* sync: a member refused as a whole, synced with again once it changed documenttv3 days3-3/+34
| | | | | | | | | | | | A node refusing a member as a whole sent it nothing, and lifted that only when a change of the member's was taken again. But a member that dropped what was refused (REFUSALS) starts its sync sessions over, and a fresh session sends no changes until the other side answers: the two waited for each other, and the member stayed refused. The refusal now notes the member's run and epoch_seq when it began; a member with another document since (it dropped what was refused, or rejoined) is synced with again.
* remake: replays judged before they go intv3 days4-2/+118
| | | | | | | | | | | | | | | A switching or rejoining node replays late writes as fresh changes naming each write's user, and nothing judged them before they left: a replay every node would refuse (a revoked capability, a second envelope at a signed path, readers changed) was refused everywhere, and with it everything the node wrote after it. Under a policy, replay_newest now judges each group it commits as every node will (rules::judge_held, in the new epoch); one they would refuse is taken back (forked at the heads before it, same actor) and its paths quarantined with the reason. replay_newest takes the epoch. Review finding 3 (remake replays).
* access: a node judges its own changes before they leavetv3 days6-61/+198
| | | | | | | | | | | | | | | | | | | | The API checks the path a request asks for; the rules judge everything the change does. Where they disagreed, the honest node's change was refused by every other node, and with signatures required the node was refused as a whole. The plan had both gates run the same judgement. Under a policy, each change a node makes (its own writes and those through the API) is now judged by rules::judge as receivers will judge it, before it is signed or sent; one every node would refuse is rolled back (the document forked at the heads before it, same actor: the change never left) and the request refused with 403 (StoreError:: Refused). rules::judge_held, judging a change the document holds, moves from swarm::refusals to access::rules for both. The simulations that play a member past its own checks write with a helper that bypasses them (forge). Review finding 3 (the same judgement at both gates).
* remake: replay from the quarantine where the user may writetv3 days1-12/+35
| | | | | | | | | | POST /admin/quarantine/{id}/replay needs write on _continuum, which never covers user data, and replayed every path of the entry as the user who asked: every node refused the user data in it. It now replays only the paths the user may write and keeps the rest in the entry (left), for one who may; 403 if the user may write none. Review finding 3 (quarantine replays).
* access: forgetting and revoking as the API letstv3 days1-4/+46
| | | | | | | | | | | | | | Two writes the API lets a user make were refused by the rules: * DELETE /peers/{pk}, with write on _continuum/forgotten alone, writes the forget record and removes the member's entry in one change; the rules wanted write on the entry. Removing an entry is now also taken in a change forgetting that member, from a user who may forget it. * DELETE /admin/users/{name}/tokens by a user who manages users writes _continuum/logouts/<name>; the rules wanted write there. One who may write _continuum/users may now write anyone's logouts entry. Review finding 3 (DELETE /peers, revoking tokens).
* access: maps made on the way judged by what they holdtv3 days1-0/+84
| | | | | | | | | | | | A write makes the maps on its way where there are none (store::write_path); the rules judged each made map as a write at its own path, so a user whose capability lies below a map not made yet (write on servers/eu, a first PUT at servers/eu/0) had its first write taken by its node and refused by every other. A map made where there was none, in a change writing within it, is now judged by what is written within it. Review finding 3 (parent maps created on the way).
* access: signed values in before the next is judgedtv3 days1-2/+73
| | | | | | | | | | | Under a strict policy the rules read user data: the value at a signed place (prev) and what holds one. A batch judged at its frontier missed a signed write earlier in the same batch, so two successive signed writes at one path received together were refused on some nodes and taken on others. A change at, within or above a signed path now goes in before the next is judged. Review finding 2.
* access: judged by the policy written undertv3 days2-2/+40
| | | | | | | | | | The rules read the policy at the change's dependencies only for strict mode, so history from before the policy was judged by today's rules when a late node caught up, or when REFUSALS had it judged again. A change written while the document had no policy, or one this node doesn't know, is now judged by none. Review finding 6.
* access: a forgotten node cancels its own recordtv3 days1-1/+8
| | | | | | | | | | A node forgotten swarm-wide while alive cancels its forget record with a change naming no user; the rules judged _continuum/forgotten by the registry alone, so every node refused the cancellation and everything the node wrote after it. A node may now write its own _continuum/forgotten/<id>, as it may its member entry. Review finding 4.
* access: an epoch's root is never droppedtv3 days4-4/+54
| | | | | | | | | | | | | | | A REFUSALS naming the swarm's first change made the node receiving it judge that change again in a document that isn't empty, refuse it as "a change without dependencies that isn't the epoch's root", and drop it with everything built on it: its whole document. The first epoch's root is now the first change a document holds, as it comes to an empty one or as it is in one; a change judged again on a peer's word is never refused for having no dependencies; and drop_taken refuses to drop an epoch's root, or anything that would leave nothing kept, logging an error instead. Review finding 1 (critical).
* dashboard: flashes below labelstv4 days1-3/+5
| | | | Flashes are drawn beneath the nodes' labels.
* dashboard: message flashestv4 days1-31/+93
| | | | | messages: off / dots / flash: a message expands at its own speed and leaves an afterglow fading out in the direction it went.
* simtest: members against the rules, and a policy unknowntv4 days1-0/+102
| | | | | | | | A member writing past its API's checks is refused, told, drops its change and is taken again; a node under a policy it doesn't know takes no writes and syncs on. Auth plan M6 (tests).
* dashboard: a token handed over to another member's dashboardtv4 days3-9/+52
| | | | | | | | Opening another member's dashboard passes a token reading only, for five minutes, in the URL's fragment; its login page begins a session with it. Tokens may be asked for with a shorter lifetime. Auth plan M3 (hand-off).
* swarm: changes taken unjudged, dropped (REFUSALS)tv4 days12-34/+444
| | | | | | | | | A node refusing changes a peer brought tells it which broke a rule; the peer judges them itself, and if its rules refuse them too, drops them with all built on them (its document forked without them, a fresh actor), quarantining its own writes among them. Wire version 42. Auth plan M6 (rejoin on taint).
* access: members refused as a wholetv4 days7-3/+146
| | | | | | | | | With signatures required, a member whose own change broke a rule is refused as a whole: sent nothing, shown in /peers (refused), in stats (sync.refusedPeers) and on the dashboard, until a change of its is taken again or the epoch changes. Auth plan M6 (diverged standing).
* auth: the session cookie lets in reads onlytv4 days2-10/+27
| | | | | | | | The cookie lets in GET, HEAD and the session's own requests; anything changing something brings the token itself, which no page of another site or port can make a browser send. The dashboard's writes send it. Auth plan M3 (browsers).
* access: refused oncetv4 days4-16/+199
| | | | | | | | A refused change is remembered by its hash: offered again it is refused without decoding, judging or logging, so is one built on it, and a peer offering nothing else is answered later each time, up to a minute. Auth plan M6 (re-sending).
* auth: a login page and browser sessionstv4 days6-18/+226
| | | | | | | | | GET /login without authentication: log in by password or with a token (from a login by key). POST/DELETE /auth/session keep the token as an HttpOnly, SameSite=Strict cookie; the dashboard sends a browser without a user there and renews the session while open. Auth plan M2/M3 (browsers).
* simtest: sealed valuestv4 days1-1/+81
| | | | | | | A value sealed for its declared readers goes everywhere; one sealed for a stranger too, or plain, gets nothing past the others. Auth plan M8.
* access: values sealed for their readerstv4 days5-1/+484
| | | | | | | | | | cs1.<age file>: a value encrypted with age to its readers' SSH keys, which no node decrypts. _continuum/access/sealed declares paths whose values must be sealed, for named readers or anyone; nodes check the recipients by age's key tags, at the API and on receipt. Auth plan M8, reworked: sealed values instead of containers, readers as users only (nodes hold no keys).
* simtest: a strict swarmtv4 days1-1/+154
| | | | | | | | Signed values everywhere, carried over by a remake and replaced after it; a member writing the registry or a signed path plain gets nothing past the others. Auth plan M7.
* access: --bootstrap-keystv4 days6-20/+89
| | | | | | | The first users' SSH keys, recorded at genesis with their entries, so a swarm can be strict from its start. Auth plan M7.
* auth: logging in by keytv4 days6-7/+310
| | | | | | | | POST /auth/challenge and /auth/login/key: a node-signed challenge, valid five minutes and taken once, signed with one of the user's SSH keys (ssh-keygen -Y sign -n continuum-login), for a token. Auth plan M7 (key login, M2b).
* access: signed values judged on receipttv4 days4-16/+313
| | | | | | | | | Inspection gives each operation's kind; under strict every node refuses, at a signed place, anything but an envelope that checks and replaces the one there (deleting first as replacing does), anything within one, and above one anything replacing what holds one. Auth plan M7.
* access: a node registers before it writestv4 days2-37/+114
| | | | | | | | | Under a policy, a change by a node that isn't a member is refused with all built on it: a node's registration is written before any write of its own or through the API, not after (the registration itself exempt). Auth plan M6 (fix).
* api: signed values at the storetv4 days5-19/+317
| | | | | | | | | PUT with application/continuum-signed writes an envelope where values are signed (403/409 saying why); reads open envelopes and name the signer (x-continuum-signed-by), ?raw=true shows them. Under strict, unsigned writes reaching a signed value and the users API are 409. Auth plan M7.
* access: strict policy, signed pathstv4 days6-26/+151
| | | | | | | | | "values": "signed" (strict, requiring signatures too): the registry, _continuum/access, bans and the paths in _continuum/access/userSigned (* for any key) hold values their users signed. Envelopes read as the values they hold where the node reads protocol data. Auth plan M7.
* access: logouts apart from users' entriestv4 days5-23/+30
| | | | | | | | _continuum/logouts/<name> holds when a user's tokens were last revoked, written by the user itself or by one who may manage users, so users' entries can be signed by their managers alone. Auth plan M7.
* access: values signed by their userstv4 days5-2/+289
| | | | | | | | | access::envelope: cv1.<payload>.<signature>, the payload naming the path, value, user, time and the envelope it replaces (prev), signed with one of the user's SSH keys from the registry (keys). Checked against the registry as the writer saw it. Auth plan M7.
* access: SSH signaturestv4 days2-0/+260
| | | | | | | access::sshsig: OpenSSH's SSHSIG, verified and made natively (Ed25519, sha512/sha256), checked against OpenSSH's own test vector. Auth plan M7.
* docs: what is left of write protectiontv4 days1-1/+1
| | | | future-work brought up to date with M6.
* access: banstv4 days5-1/+75
| | | | | | | | _continuum/banned/<node ID>: every node refuses the banned node's changes from then on (judged as the ban stood) and leaves its handshakes unanswered. Auth plan M6.
* simtest: the policy, and a remake under ittv4 days2-0/+165
| | | | | | | | A swarm judging every change: honest writes everywhere, a joining node registers, a forged write stays where it was made; a compaction under the policy refuses nothing honest. Auth plan M6.
* access: signatures requiredtv4 days8-22/+279
| | | | | | | | "signatures": "required": a change counts only once a signature by its committer vouches for it, and waits until then; every node then signs every change it makes. Auth plan M6.
* access: the policy enforcedtv4 days11-9/+288
| | | | | | | | _continuum/access/policy ({"version": 1}) has every node screen every change it receives, on every path changes come in. A policy a node doesn't know stops its writes through the API. GET /admin/refused. Auth plan M6.
* access: screening received changestv4 days5-2/+418
| | | | | | | | | access::screen: a batch of received changes judged change by change, those that change what rules read applied before the next is judged; a refused change stays out with whatever builds on it, kept aside for operators; changes missing dependencies wait. Auth plan M6.
* remake: replays keep their writerstv4 days5-27/+200
| | | | | | | | A remake's replay writes each value as the user who wrote it, splitting where several users wrote under a path, so replays are judged as the original writes. Auth plan M6 (remakes, 2.4).
* remake: forgetting and releasing name their usertv4 days4-6/+52
| | | | | | | Forget records and released quarantines name the user who made them, so they are judged by its capabilities. Auth plan M6.
* access: rules by pathtv4 days4-2/+411
| | | | | | | | | | access::rules::judge: a change judged as its writer saw the document (at its dependencies): committer a member or registering itself; members' entries and votes their own; epochs and swarm ID from roots; a remake's decision by its coordinator; the rest by the registry for the user the change names. Auth plan M6.
* inspect: the paths changes touchtv4 days3-1/+300
| | | | | | | | document::inspect: each change's paths read from its operations before it is applied, the same on every node: an object's place as made, cut at lists and text; unknown objects at the root. Auth plan M6.