mirror of
https://github.com/jmcorgan/fips.git
synced 2026-10-05 19:18:25 +00:00
Johnathan Corgan
a5a05e5024
The native-api suite failed on the internal builder while passing on GitHub, at the same commit and with the same test script. Two of its three failing assertions read as defects in the daemon and are not. A bind-mount source is resolved by the Docker daemon in the host's mount namespace, never in the caller's. The CI worker unit sets systemd's PrivateTmp=, so its /tmp is its own, and a path from `mktemp -d` exists only inside the unit. The daemon finds nothing there and creates an empty directory at the same path on the host instead. Everything downstream follows from that: a socket the container binds lands in a directory this script cannot see, so the check reports "socket never appeared" while the daemon under test logs the bind eighteen lines below it; and a file mount such as fips.yaml arrives as a directory, so the node exits with "Is a directory (os error 21)" and the check reports that the two nodes did not start. Reproduced directly, since a private /tmp needs privileges this host does not grant unprivileged: `docker run -v /tmp/absent/fips.yaml:/etc/fips/fips.yaml` against a path that does not exist leaves root-owned directories on the host and makes the container read the config as a directory, which is the CI log's error verbatim. Twelve such directories from the failing runs were still in /tmp, root-owned and timestamped to the native-api stage, when this was traced. Give the harness a per-run temporary root inside the worktree and route every bind-mount source through it. The worktree is the same path in both namespaces, which is the property that matters and the one /tmp does not have. /target is already ignored, and the pid in the path keeps the two trunk runs on the builder out of each other's way. Seven directories move: the single-node socket directory, the gated and API-off directories, and the two socket and two config directories of the two-node check. The build context and the log files stay on `mktemp`, because the daemon resolves neither, and the comment on the helper says which is which so the distinction does not have to be rediscovered. This is why the suite is the only one affected: it is the only one under testing/ that bind-mounts a `mktemp` path at all. Every other script there uses mktemp for host-side scratch only. Worth naming rather than leaving to be found: the third assertion, "No socket appears when the API is not enabled", passed throughout. It asserts an absence, and a mount that goes to the wrong place produces an absence too, so in that environment it could not have failed. It passes here for the right reason now. Verified by running the suite on this host: 28 passed, 0 failed, and the exit trap left no directory behind. That run had an ordinary shared /tmp, so it shows the change breaks nothing; the builder's private /tmp is what the next gate run exercises. No changelog entry: nothing here changes what the release ships.
1448 lines
63 KiB
Bash
Executable File
1448 lines
63 KiB
Bash
Executable File
#!/bin/bash
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# Native datagram API checks (experimental feature).
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#
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# The client runs in its own container and reaches the daemon through a
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# bind-mounted /run/fips. That is the real deployment shape: a separate process
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# with its own filesystem opening the socket, rather than a test speaking to the
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# daemon from inside its own container. It is also what makes the access policy
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# observable — the host sees the socket file and can read its mode.
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#
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# The setup protocol is two commands and two descriptors. `connect` hands back
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# a flow's SOCK_SEQPACKET half; `listen` hands back the listener's own, which is
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# what makes a listener pollable and makes accepting a recvmsg on it rather than
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# a round trip on the command socket. There are no events and no accept or
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# reject command: an arriving flow is one message on the listener descriptor,
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# carrying that flow's descriptor with it, and refusing a flow is close(2).
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#
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# Every check that receives a descriptor names it. The harness treats a
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# descriptor nothing named as a failure rather than ignoring it, because an
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# unnamed one is a flow or a held port dropped with nothing to say so.
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#
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# A peer is named by npub everywhere a client can see it, in a connect reply and
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# in an arrival alike. The 16-byte node address is the wire's and appears only
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# on the operator surface, which is why the control-socket check below asserts
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# both and the client checks assert only the npub.
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#
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# The observability check reads the daemon's own view back out through the
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# control socket. That needs nothing added to the image: the control socket is
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# enabled by default and lands in the same bind-mounted /run/fips, and the image
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# already carries python3 for the API client.
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#
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# inject, stats and arrive are debug commands, gated on
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# node.native_api.debug_commands and off in a packaged node. node.yaml turns
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# them on because nine checks here drive them; check_debug_commands_gated runs a
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# second node that leaves the key alone and asserts all three are refused there.
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#
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# The echo check runs examples/native-echo.rs, which is built against the
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# crate's own client module rather than against the line protocol. That makes it
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# the only check here where both ends are programs a user could have written.
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# examples/native-surface.rs is the second such program: it walks the client's
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# whole public surface against a live daemon and asserts what each item reports,
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# which is the coverage a check driven from the Python line-protocol client
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# cannot give. Both image paths carry both binaries; see resolve_image and
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# testing/docker/Dockerfile.
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#
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# Usage: ./test.sh
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#
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# Image: FIPS_TEST_IMAGE if set (this is what ci-local.sh passes, and there is
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# deliberately no fips-test:latest to fall back on). Otherwise a minimal image
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# is built from locally compiled binaries, which is the standalone path.
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set -uo pipefail
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
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LABEL="com.corganlabs.fips-ci=1"
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NODE_NAME="fips-native-api-node-$$"
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GATED_NAME="fips-native-api-gated-$$"
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SURFACE="fips-native-surface-$$"
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# Root for every temporary directory this harness bind-mounts into a
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# container. It has to be somewhere the Docker daemon can resolve, which /tmp
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# is not always.
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#
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# A bind-mount source is resolved by the daemon in the host's mount namespace,
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# never in this script's. Under a service sandbox that gives the unit a private
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# /tmp — systemd's PrivateTmp=, which the CI worker on the builder sets — a path
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# from `mktemp -d` exists only here. The daemon finds nothing at it and creates
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# an empty directory instead, so a socket the container binds lands where this
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# script cannot see it, and a file mount such as fips.yaml arrives as a
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# directory, which the daemon reports as EISDIR. Neither says what happened:
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# the first surfaces as "socket never appeared" and the second as a node that
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# will not start. The suite failed both ways on the builder while passing on
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# GitHub, whose runner has no such sandbox.
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#
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# The worktree is the same path in both namespaces, so putting these
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# directories under it removes the question. /target is already ignored, and
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# the run's pid keeps concurrent runs out of each other's way.
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TMP_ROOT="$REPO_ROOT/target/native-api-tmp/$$"
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mkdir -p "$TMP_ROOT"
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# Create a temporary directory the Docker daemon can also see.
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#
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# Use this, not `mktemp -d`, for anything that becomes a bind-mount source.
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# Directories that stay on this side of the boundary, such as a build context
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# the CLI reads itself, do not need it.
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shared_tmpdir() {
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mktemp -d "$TMP_ROOT/XXXXXXXX"
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}
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SOCK_DIR="$(shared_tmpdir)"
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IMAGE=""
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BUILT_IMAGE=""
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# Two valid npubs the checks use as peers. Nothing is ever sent to them: the
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# wire is not connected, and the arrival command only names them. They must
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# decode, because connect and arrive resolve an npub to a node address.
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PEER="npub1sjlh2c3x9w7kjsqg2ay080n2lff2uvt325vpan33ke34rn8l5jcqawh57m"
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PEER2="npub1n9lpnv0592cc2ps6nm0ca3qls642vx7yjsv35rkxqzj2vgds52sqgpverl"
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# How many assertions one run of examples/native-surface.rs records.
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#
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# Deliberately brittle. The binary prints the recorder's own counter rather than
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# a literal, so comparing against this number catches an assertion block that
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# stopped running as well as one that failed: a #[cfg] gate that no longer
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# matches, or an early return, still exits 0 and still prints the completion
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# line, and only the count betrays it. Adding an assertion there must therefore
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# force an edit here, which is the friction that keeps the two from drifting
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# apart in silence.
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SURFACE_ASSERTIONS=31
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PASS=0
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FAIL=0
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log() { echo "=== $*"; }
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pass() { echo " PASS: $*"; PASS=$((PASS + 1)); }
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fail() { echo " FAIL: $*"; FAIL=$((FAIL + 1)); }
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cleanup() {
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teardown_two_nodes
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docker rm -f "$NODE_NAME" >/dev/null 2>&1
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docker rm -f "${NODE_NAME}-off" >/dev/null 2>&1
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docker rm -f "$GATED_NAME" >/dev/null 2>&1
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docker rm -f "$SURFACE" >/dev/null 2>&1
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[[ -n "$BUILT_IMAGE" ]] && docker rmi -f "$BUILT_IMAGE" >/dev/null 2>&1
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rm -rf "$TMP_ROOT"
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return 0
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}
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trap cleanup EXIT
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# ─────────────────────────────────────────────────────────────────────
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# Image
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# ─────────────────────────────────────────────────────────────────────
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# Print a source file newer than `built`, and nothing when none is. The second
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# argument, when given, is the example source `built` was compiled from.
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#
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# Every binary this run depends on is built from src/ and Cargo.toml, and is
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# read alongside the harness client in this directory. The Python is
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# bind-mounted live rather than built into the image, so a redesigned harness
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# would otherwise run against a stale daemon without complaint, which is
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# exactly the verdict this guard exists to prevent.
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#
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# An example is probed against its OWN .rs and no other, which is what keeps
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# the guard usable rather than merely correct. Cargo does not relink
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# target/release/fips when only an example changes, so probing the daemon
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# against all of examples/ leaves it permanently older than a just-edited
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# example: the run refuses, and the `cargo build --release --bins --examples`
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# the refusal prescribes does not clear the condition. Editing native-surface.rs
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# is the routine case now, so that deadlock would be hit on nearly every
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# iteration.
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stale_source() {
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local built="$1" own="${2:-}"
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find "$REPO_ROOT/src" "$REPO_ROOT/Cargo.toml" -newer "$built" -print -quit 2>/dev/null
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find "$SCRIPT_DIR" -name '*.py' -newer "$built" -print -quit 2>/dev/null
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[[ -n "$own" && "$own" -nt "$built" ]] && echo "$own"
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return 0
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}
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resolve_image() {
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if [[ -n "${FIPS_TEST_IMAGE:-}" ]]; then
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IMAGE="$FIPS_TEST_IMAGE"
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log "Using FIPS_TEST_IMAGE=$IMAGE"
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return 0
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fi
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# All three binaries come from one profile directory. A release daemon
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# paired with a debug echo server would be two builds of two trees, which is
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# the mixture the staleness guard below exists to refuse.
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local profile=""
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for candidate in "$REPO_ROOT/target/release" "$REPO_ROOT/target/debug"; do
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[[ -x "$candidate/fips" && -x "$candidate/examples/native-echo" \
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&& -x "$candidate/examples/native-surface" ]] \
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&& { profile="$candidate"; break; }
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done
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if [[ -z "$profile" ]]; then
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echo "No FIPS_TEST_IMAGE, and no profile holds fips with the native-echo and native-surface examples." >&2
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echo "Build them first: cargo build --release --bins --examples" >&2
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return 1
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fi
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local binary="$profile/fips"
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local echo_binary="$profile/examples/native-echo"
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local walk_binary="$profile/examples/native-surface"
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# A stale binary is the worst outcome available here: the checks would run,
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# pass or fail against code that is not the working tree's, and report a
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# verdict about the wrong thing. Refuse rather than warn.
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local newest_source
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newest_source="$(stale_source "$binary"
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stale_source "$echo_binary" "$REPO_ROOT/examples/native-echo.rs"
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stale_source "$walk_binary" "$REPO_ROOT/examples/native-surface.rs")"
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# The probes can each name the same file; report it once.
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newest_source="${newest_source%%$'\n'*}"
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if [[ -n "$newest_source" ]]; then
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echo "$(basename "$profile") binaries are older than $newest_source" >&2
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echo "Rebuild before running: cargo build --release --bins --examples" >&2
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return 1
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fi
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BUILT_IMAGE="fips-native-api-test:$$"
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log "Building $BUILT_IMAGE from $(basename "$profile") binaries"
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local context
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context="$(mktemp -d)"
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cp "$binary" "$context/fips"
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cp "$echo_binary" "$context/native-echo"
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cp "$walk_binary" "$context/native-surface"
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cat > "$context/Dockerfile" <<'DOCKERFILE'
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FROM debian:trixie-slim
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# libdbus-1-3 and libsystemd0 are the daemon's dynamic dependencies (BLE and
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# journal integration). Without them the binary does not start, and a check
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# that only looks for a socket would read that as a feature failure.
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RUN apt-get update && \
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apt-get install -y --no-install-recommends \
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python3 ca-certificates libdbus-1-3 libsystemd0 && \
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rm -rf /var/lib/apt/lists/*
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COPY fips /usr/local/bin/fips
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# The echo check runs native-echo as one end of a two-node exchange and the
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# surface walk runs native-surface against a single node, so the standalone
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# image needs both exactly as the CI image does.
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COPY native-echo /usr/local/bin/native-echo
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COPY native-surface /usr/local/bin/native-surface
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RUN chmod +x /usr/local/bin/fips /usr/local/bin/native-echo /usr/local/bin/native-surface
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DOCKERFILE
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docker build -t "$BUILT_IMAGE" --label "$LABEL" "$context" --quiet >/dev/null
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local status=$?
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rm -rf "$context"
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[[ $status -ne 0 ]] && return 1
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IMAGE="$BUILT_IMAGE"
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return 0
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}
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# ─────────────────────────────────────────────────────────────────────
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# Daemon
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# ─────────────────────────────────────────────────────────────────────
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# Start a node with the given config, into the given container name.
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start_node() {
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local name="$1" config="$2" sockdir="$3"
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docker rm -f "$name" >/dev/null 2>&1
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docker run -d --name "$name" --label "$LABEL" \
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-v "$sockdir:/run/fips" \
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-v "$SCRIPT_DIR/$config:/etc/fips/fips.yaml:ro" \
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--entrypoint /usr/local/bin/fips \
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"$IMAGE" --config /etc/fips/fips.yaml >/dev/null
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}
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# Wait up to `timeout` seconds for the socket file to appear.
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wait_for_socket() {
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local path="$1" timeout="${2:-20}" waited=0
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while [[ $waited -lt $timeout ]]; do
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[[ -S "$path" ]] && return 0
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sleep 1
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waited=$((waited + 1))
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done
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return 1
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}
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# Wait up to `timeout` seconds for a node container to report itself running.
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#
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# "Running" means the daemon logged its startup line, not merely that the
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# container is up: a container whose process is crash-looping is still "up" for
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# a moment at a time.
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wait_for_running() {
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local name="$1" timeout="${2:-20}" waited=0
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while [[ $waited -lt $timeout ]]; do
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if [[ "$(docker inspect -f '{{.State.Running}}' "$name" 2>/dev/null)" == "true" ]] \
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&& docker logs "$name" 2>&1 | grep -q "Node started"; then
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return 0
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fi
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sleep 1
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waited=$((waited + 1))
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done
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return 1
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}
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# Run a client script in its own container against the socket.
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run_client() {
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docker run --rm --label "$LABEL" \
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-v "$SOCK_DIR:/run/fips" \
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-v "$SCRIPT_DIR:/harness:ro" \
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--entrypoint python3 \
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"$IMAGE" -u /harness/client.py --socket /run/fips/api.sock --script "$1"
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}
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# ─────────────────────────────────────────────────────────────────────
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# Checks
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# ─────────────────────────────────────────────────────────────────────
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check_socket_appears() {
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log "The socket appears when the API is enabled"
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start_node "$NODE_NAME" node.yaml "$SOCK_DIR"
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if wait_for_socket "$SOCK_DIR/api.sock"; then
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pass "socket bound at /run/fips/api.sock"
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else
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fail "socket never appeared"
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docker logs "$NODE_NAME" 2>&1 | tail -20
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return 1
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fi
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}
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check_socket_mode() {
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log "The socket carries the group-access mode"
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local mode
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mode="$(stat -c '%a' "$SOCK_DIR/api.sock" 2>/dev/null)"
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if [[ "$mode" == "770" ]]; then
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pass "mode is 0770"
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else
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# A failure here means the access policy did not run, which would leave
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# the socket readable by anyone who can reach the directory.
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fail "mode is $mode, wanted 770"
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fi
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}
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check_commands_answered() {
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log "Every command is answered on one connection, in command order"
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# Several commands travel over a single connection, which is the property
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# that separates this socket from the control socket's one-shot shape. Both
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# setup commands carry a descriptor, so this is also where the descriptor
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# association rule bites: two descriptor-bearing replies on one connection
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# is the shape that would let a reader hand one reply the other's flow.
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#
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# The daemon's own re-encode of the peer is asserted rather than an echo of
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# what was sent, because that is what makes a connect reply and an arrival
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# name one peer the same way.
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local script='[
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{"command":"listen","params":{"local_port":4242},"keep_listener":"L",
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"expect":{"status":"ok","data.local_port":4242,"data.backlog":16}},
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{"command":"connect","params":{"peer":"'"$PEER"'","remote_port":4242,"local_port":5000},
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"keep_fd":"a",
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"expect":{"status":"ok","data.local_port":5000,"data.remote_port":4242,
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"data.peer":"'"$PEER"'"}},
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{"command":"teleport","expect":{"status":"error","data.errno":"EINVAL"}}
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]'
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if run_client "$script"; then
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pass "both setup commands and a refusal answered over one connection"
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else
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fail "a command was not answered as expected"
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fi
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}
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check_ephemeral_allocation() {
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log "Port 0 and an absent port both ask for an ephemeral one"
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# One rule covers both commands, and a listener that asked for 0 has nowhere
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# but the reply to learn the port it got, which is getsockname after bind(2)
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# with port 0.
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#
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# The three ports asserted are the first three the node ever hands out: the
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# allocator is a cursor on the node that only moves forward, so this check
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# has to run before anything else that asks for an ephemeral port.
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local script='[
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{"command":"connect","params":{"peer":"'"$PEER"'","remote_port":4242},
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"keep_fd":"a","expect":{"status":"ok","data.local_port":49152}},
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{"command":"connect","params":{"peer":"'"$PEER"'","remote_port":4242,"local_port":0},
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"keep_fd":"b","expect":{"status":"ok","data.local_port":49153}},
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{"command":"listen","params":{"local_port":0},"keep_listener":"L",
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"expect":{"status":"ok","data.local_port":49154}}
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]'
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if run_client "$script"; then
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pass "connect and listen both allocate from the ephemeral range"
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else
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fail "ephemeral allocation did not answer as expected"
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fi
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}
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check_reserved_ports_refused() {
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log "Reserved port tiers are refused"
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# Port 256 is the IPv6 shim. A client that could bind it, or name it on a
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# peer, would be injecting into an IPv6 plane it does not own.
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#
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# The errno is asserted, not merely the refusal: it is the contract a
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# binding turns into what bind(2) returns, and EADDRNOTAVAIL rather than
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# EACCES because no client, however privileged, may hold port 256.
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local script='[
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{"command":"listen","params":{"local_port":256},
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"expect":{"status":"error","data.errno":"EADDRNOTAVAIL"}},
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{"command":"listen","params":{"local_port":80},
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"expect":{"status":"error","data.errno":"EADDRNOTAVAIL"}},
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{"command":"listen","params":{"local_port":1023},
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"expect":{"status":"error","data.errno":"EADDRNOTAVAIL"}},
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{"command":"connect","params":{"peer":"'"$PEER"'","remote_port":256},
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"expect":{"status":"error","data.errno":"EADDRNOTAVAIL"}},
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{"command":"listen","params":{"local_port":1024},"keep_listener":"L",
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"expect":{"status":"ok"}}
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]'
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if run_client "$script"; then
|
|
pass "the reserved tiers are refused as EADDRNOTAVAIL and 1024 is not"
|
|
else
|
|
fail "port tier policy did not hold"
|
|
fi
|
|
}
|
|
|
|
check_bad_input_survives() {
|
|
log "A bad command does not end the connection"
|
|
# The healthy path after each refusal is the point: a client that mistypes
|
|
# one command must not lose the flows its connection holds.
|
|
local script='[
|
|
{"command":"teleport","expect":{"status":"error","data.errno":"EINVAL"}},
|
|
{"command":"listen","expect":{"status":"error","data.errno":"EINVAL"}},
|
|
{"command":"listen","params":{"local_port":4242},"keep_listener":"L",
|
|
"expect":{"status":"ok"}}
|
|
]'
|
|
if run_client "$script"; then
|
|
pass "the connection survives an unknown command and missing params"
|
|
else
|
|
fail "the connection did not survive a bad command"
|
|
fi
|
|
}
|
|
|
|
check_descriptor_carries_datagrams() {
|
|
log "A descriptor arrives with the reply and carries datagrams to the daemon"
|
|
# Three writes must reach the daemon as three datagrams. The byte count
|
|
# matters as much as the datagram count: a boundary loss would show up as
|
|
# one datagram of nine bytes rather than three of three.
|
|
local script='[
|
|
{"command":"connect","params":{"peer":"'"$PEER"'","remote_port":4242},
|
|
"keep_fd":"a","keep_flow":"a","expect":{"status":"ok"}},
|
|
{"fd":"a","write":"00ff10","repeat":3},
|
|
{"command":"stats","params":{"flow_id":"@a"},
|
|
"expect":{"status":"ok","data.rx_datagrams":3,"data.rx_bytes":9,"data.closed":false}}
|
|
]'
|
|
if run_client "$script"; then
|
|
pass "three datagrams crossed the descriptor and the daemon counted them"
|
|
else
|
|
fail "the daemon did not observe what the client wrote"
|
|
fi
|
|
}
|
|
|
|
check_receive_direction() {
|
|
log "The daemon can write datagrams the client receives whole"
|
|
# 00ff10 includes a byte that is not valid UTF-8, so this also shows the
|
|
# path carries arbitrary bytes rather than text.
|
|
local script='[
|
|
{"command":"connect","params":{"peer":"'"$PEER"'","remote_port":4242},
|
|
"keep_fd":"a","keep_flow":"a","expect":{"status":"ok"}},
|
|
{"fd":"a","readable":false},
|
|
{"command":"inject","params":{"flow_id":"@a","data":"00ff10","repeat":3},
|
|
"expect":{"status":"ok","data.datagrams":3,"data.bytes":9}},
|
|
{"fd":"a","readable":true},
|
|
{"fd":"a","read":3,"expect_bytes":"00ff10","sizes":[3,3,3]}
|
|
]'
|
|
if run_client "$script"; then
|
|
pass "poll reported readability and three datagrams arrived whole"
|
|
else
|
|
fail "the receive direction did not behave"
|
|
fi
|
|
}
|
|
|
|
check_close_reaches_the_daemon() {
|
|
log "Closing the descriptor releases the flow at the daemon"
|
|
# Without this the daemon would hold a flow for a client that is gone, which
|
|
# is the leak the whole close path exists to prevent. There is no close
|
|
# command and never was: closing the descriptor is the signal.
|
|
#
|
|
# The node forgets a released flow, so `stats` answers for it the way it
|
|
# answers for any name it does not hold. The step before the close is what
|
|
# makes that discriminating: the same flow answered a moment earlier, so the
|
|
# refusal afterwards can only be the release. The sleep is the task hop
|
|
# between the daemon reading end of file and giving the entry back.
|
|
local script='[
|
|
{"command":"connect","params":{"peer":"'"$PEER"'","remote_port":4242},
|
|
"keep_fd":"a","keep_flow":"a","expect":{"status":"ok"}},
|
|
{"fd":"a","write":"aa"},
|
|
{"command":"stats","params":{"flow_id":"@a"},
|
|
"expect":{"status":"ok","data.closed":false,"data.rx_datagrams":1}},
|
|
{"fd":"a","close":true},
|
|
{"sleep":1},
|
|
{"command":"stats","params":{"flow_id":"@a"},"expect":{"status":"error"}}
|
|
]'
|
|
if run_client "$script"; then
|
|
pass "the daemon saw the close and gave the flow back"
|
|
else
|
|
fail "the daemon did not release the closed flow"
|
|
fi
|
|
}
|
|
|
|
check_flows_are_independent() {
|
|
log "Two flows on one connection stay separate"
|
|
local script='[
|
|
{"command":"connect","params":{"peer":"'"$PEER"'","remote_port":4242},
|
|
"keep_fd":"a","keep_flow":"a","expect":{"status":"ok"}},
|
|
{"command":"connect","params":{"peer":"'"$PEER2"'","remote_port":4243},
|
|
"keep_fd":"b","keep_flow":"b","expect":{"status":"ok"}},
|
|
{"fd":"a","write":"11","repeat":2},
|
|
{"command":"stats","params":{"flow_id":"@a"},"expect":{"data.rx_datagrams":2}},
|
|
{"command":"stats","params":{"flow_id":"@b"},"expect":{"data.rx_datagrams":0}},
|
|
{"command":"inject","params":{"flow_id":"@b","data":"22"},"expect":{"status":"ok"}},
|
|
{"fd":"b","read":1,"expect_bytes":"22"},
|
|
{"fd":"a","readable":false}
|
|
]'
|
|
if run_client "$script"; then
|
|
pass "each flow saw only its own traffic"
|
|
else
|
|
fail "traffic crossed between flows"
|
|
fi
|
|
}
|
|
|
|
check_unknown_flow_refused() {
|
|
log "A flow no node holds, and bad hex, are refused"
|
|
# The debug commands are addressed node-wide rather than per connection,
|
|
# because a flow belongs to the node and not to the connection that opened
|
|
# it. So the refusal here is about a flow that does not exist, not about
|
|
# ownership: any process that can open this socket can name any flow on the
|
|
# node, which is why both commands are behind a gate that is off by default.
|
|
local script='[
|
|
{"command":"stats","params":{"flow_id":99},"expect":{"status":"error"}},
|
|
{"command":"inject","params":{"flow_id":99,"data":"00"},"expect":{"status":"error"}},
|
|
{"command":"inject","params":{"flow_id":1,"data":"zz"},"expect":{"status":"error"}}
|
|
]'
|
|
if run_client "$script"; then
|
|
pass "an absent flow and bad hex are refused"
|
|
else
|
|
fail "an absent flow or bad hex was accepted"
|
|
fi
|
|
}
|
|
|
|
# A valid npub the checks use as a peer. Nothing is ever sent to it: the wire is
|
|
# not connected, and the arrival command only names it.
|
|
|
|
check_port_ownership() {
|
|
log "A local port has one owner, and the descriptor is what holds it"
|
|
# The registry lives on the node, so one port has one owner whichever client
|
|
# asked. What releases it changed: the port is held by the listener's
|
|
# descriptor, not by the connection, so closing that descriptor is the
|
|
# unbind and closing the connection is not.
|
|
local first='[
|
|
{"command":"listen","params":{"local_port":4300},"keep_listener":"L",
|
|
"expect":{"status":"ok"}},
|
|
{"command":"listen","params":{"local_port":4300},
|
|
"expect":{"status":"error","data.errno":"EADDRINUSE"}},
|
|
{"command":"connect","params":{"peer":"'"$PEER"'","remote_port":9000,"local_port":4300},
|
|
"expect":{"status":"error","data.errno":"EADDRINUSE"}},
|
|
{"fd":"L","close":true},
|
|
{"sleep":1},
|
|
{"command":"listen","params":{"local_port":4300},"keep_listener":"M",
|
|
"expect":{"status":"ok"}}
|
|
]'
|
|
if run_client "$first"; then
|
|
pass "a held port is refused twice, and closing the listener unbinds it"
|
|
else
|
|
fail "a port was handed out twice, or a closed listener kept it"
|
|
return
|
|
fi
|
|
|
|
# That client's process is gone, so the kernel closed the descriptor it
|
|
# still held and the same unbind path ran without its cooperation.
|
|
local second='[
|
|
{"command":"listen","params":{"local_port":4300},"keep_listener":"L",
|
|
"expect":{"status":"ok"}}
|
|
]'
|
|
if run_client "$second"; then
|
|
pass "the port came back when its client exited"
|
|
else
|
|
fail "a client that exited left its port held"
|
|
fi
|
|
}
|
|
|
|
check_listen_accept_deliver() {
|
|
log "An arrival reaches the listener descriptor with its flow and what it held"
|
|
# The arrival command drives the same dispatch the FSP receive path does, so
|
|
# this exercises the rule before the wire is involved.
|
|
#
|
|
# Three things are asserted that the accept command used to answer for. The
|
|
# arrival names the peer by npub, which is the address its session
|
|
# authenticated and not a hash of it. It carries this node's own npub, so an
|
|
# accepted flow can answer getsockname without consulting its listener. And
|
|
# the datagram the node held before any descriptor existed is already on the
|
|
# flow's descriptor when the client reads the arrival, which is the ordering
|
|
# the hand-off guarantees: losing it drops a peer'"'"'s opening message.
|
|
local script='[
|
|
{"command":"listen","params":{"local_port":4301},"keep_listener":"L",
|
|
"expect":{"status":"ok","data.local_port":4301}},
|
|
{"command":"arrive","params":{"peer":"'"$PEER"'","src_port":5000,"dst_port":4301,"data":"00ff10"},
|
|
"expect":{"status":"ok","data.outcome":"announced"}},
|
|
{"accept":"L","keep_fd":"a","keep_flow":"a",
|
|
"expect":{"local_port":4301,"remote_port":5000,"peer":"'"$PEER"'","held":1,
|
|
"max_payload":1362}},
|
|
{"fd":"a","read":1,"expect_bytes":"00ff10"},
|
|
{"command":"arrive","params":{"peer":"'"$PEER"'","src_port":5000,"dst_port":4301,"data":"aabb"},
|
|
"expect":{"status":"ok","data.outcome":"delivered"}},
|
|
{"fd":"a","read":1,"expect_bytes":"aabb"}
|
|
]'
|
|
if run_client "$script"; then
|
|
pass "the held datagram and the next one both reached the client"
|
|
else
|
|
fail "the listen and accept path did not deliver"
|
|
fi
|
|
}
|
|
|
|
check_listener_is_pollable() {
|
|
log "A listener descriptor is pollable, and reports a waiting arrival"
|
|
# The point of the listener being a descriptor rather than a registration:
|
|
# it joins a client'"'"'s existing poll, select or epoll loop with no new
|
|
# mechanism, and accept is a recvmsg on it. Nothing else here proves that —
|
|
# every other listener check discovers an arrival by blocking in accept,
|
|
# which a registration could have offered too.
|
|
#
|
|
# The not-readable step before the arrival is what makes the readable one
|
|
# mean something: without it, a descriptor that was readable from the moment
|
|
# it was created would satisfy the check.
|
|
local script='[
|
|
{"command":"listen","params":{"local_port":4305},"keep_listener":"L",
|
|
"expect":{"status":"ok"}},
|
|
{"fd":"L","readable":false},
|
|
{"command":"arrive","params":{"peer":"'"$PEER"'","src_port":5100,"dst_port":4305,"data":"aa"},
|
|
"expect":{"status":"ok","data.outcome":"announced"}},
|
|
{"fd":"L","readable":true},
|
|
{"accept":"L","keep_fd":"a","expect":{"local_port":4305,"remote_port":5100}},
|
|
{"fd":"L","readable":false},
|
|
{"fd":"a","read":1,"expect_bytes":"aa"}
|
|
]'
|
|
if run_client "$script"; then
|
|
pass "poll reported the listener unreadable, then readable, then unreadable"
|
|
else
|
|
fail "the listener descriptor did not report readability"
|
|
fi
|
|
}
|
|
|
|
check_dispatch_order() {
|
|
log "Dispatch prefers an established flow, then a listener, then a drop"
|
|
# The flow key is the peer and both ports, so the second arrival on one key
|
|
# must reach the flow that key already names rather than announce a second
|
|
# time; a third arrival differing only in source port is a different key and
|
|
# must announce. The listener being unreadable in between is what says the
|
|
# established flow won: without it, a daemon that announced everything would
|
|
# satisfy every other step here.
|
|
local script='[
|
|
{"command":"arrive","params":{"peer":"'"$PEER"'","src_port":5000,"dst_port":4302,"data":"aa"},
|
|
"expect":{"status":"ok","data.outcome":"dropped: no listener or flow on that port"}},
|
|
{"command":"listen","params":{"local_port":4302},"keep_listener":"L",
|
|
"expect":{"status":"ok"}},
|
|
{"command":"arrive","params":{"peer":"'"$PEER"'","src_port":5000,"dst_port":4302,"data":"aa"},
|
|
"expect":{"status":"ok","data.outcome":"announced"}},
|
|
{"accept":"L","keep_fd":"a","expect":{"local_port":4302,"remote_port":5000}},
|
|
{"fd":"a","read":1,"expect_bytes":"aa"},
|
|
{"command":"arrive","params":{"peer":"'"$PEER"'","src_port":5000,"dst_port":4302,"data":"bb"},
|
|
"expect":{"status":"ok","data.outcome":"delivered"}},
|
|
{"fd":"a","read":1,"expect_bytes":"bb"},
|
|
{"fd":"L","readable":false},
|
|
{"command":"arrive","params":{"peer":"'"$PEER"'","src_port":5001,"dst_port":4302,"data":"cc"},
|
|
"expect":{"status":"ok","data.outcome":"announced"}},
|
|
{"accept":"L","keep_fd":"b","expect":{"local_port":4302,"remote_port":5001}},
|
|
{"fd":"b","read":1,"expect_bytes":"cc"}
|
|
]'
|
|
if run_client "$script"; then
|
|
pass "an unheld port drops, a listener announces, then its flow receives"
|
|
else
|
|
fail "the dispatch order did not hold"
|
|
fi
|
|
}
|
|
|
|
check_backlog_is_not_the_clients_bound() {
|
|
log "A listener that never accepts is not bounded at its backlog"
|
|
# This is what the backlog stopped meaning. It bounds flows the rx_loop has
|
|
# announced and the daemon has not yet wired, and the daemon drains that
|
|
# queue itself: a pending entry gives up its backlog claim as soon as the
|
|
# listener task promotes it, which happens whether or not the client ever
|
|
# calls recvmsg. So a client that binds a listener and reads nothing does
|
|
# not stop at 16.
|
|
#
|
|
# What does bound it after that is the listener'"'"'s send buffer and the
|
|
# node-wide max_flows, neither of which is a number a shell check can
|
|
# produce deterministically; the drop paths for both are covered by the
|
|
# daemon'"'"'s own tests. What is asserted here is the change: twenty
|
|
# arrivals at an unread listener, on a backlog of sixteen, and every one
|
|
# announced.
|
|
#
|
|
# The flow key is (peer, remote port, local port), so varying the source
|
|
# port makes each arrival a separate flow without needing distinct npubs.
|
|
local steps='[{"command":"listen","params":{"local_port":4303},"keep_listener":"L","expect":{"status":"ok"}}'
|
|
local port
|
|
for port in $(seq 6000 6019); do
|
|
steps="$steps,{\"command\":\"arrive\",\"params\":{\"peer\":\"$PEER\",\"src_port\":$port,\"dst_port\":4303,\"data\":\"aa\"},\"expect\":{\"data.outcome\":\"announced\"}}"
|
|
done
|
|
steps="$steps]"
|
|
|
|
if run_client "$steps" >/dev/null; then
|
|
pass "20 arrivals announced at a listener that read none of them"
|
|
else
|
|
fail "an unread listener refused an arrival before its send buffer filled"
|
|
run_client "$steps" 2>&1 | grep -A 3 FAILED | head -8
|
|
fi
|
|
}
|
|
|
|
check_refusing_a_flow_frees_it() {
|
|
log "Refusing an accepted flow is closing its descriptor, and that frees it"
|
|
# There is no reject command: Berkeley has exactly one way to refuse a
|
|
# connection and so does this. Keeping a second would let a client refuse a
|
|
# flow two indistinguishable ways.
|
|
#
|
|
# Two things have to follow the close, and the second is what makes this
|
|
# more than a repeat of the connected-flow close: the node forgets the flow,
|
|
# and the registry entry and its key go with it, so the very same key
|
|
# announces a new flow afterwards rather than delivering into the dead one.
|
|
local script='[
|
|
{"command":"listen","params":{"local_port":4304},"keep_listener":"L",
|
|
"expect":{"status":"ok"}},
|
|
{"command":"arrive","params":{"peer":"'"$PEER"'","src_port":5000,"dst_port":4304,"data":"aa"},
|
|
"expect":{"status":"ok","data.outcome":"announced"}},
|
|
{"accept":"L","keep_fd":"a","keep_flow":"a","expect":{"local_port":4304}},
|
|
{"command":"stats","params":{"flow_id":"@a"},"expect":{"status":"ok"}},
|
|
{"fd":"a","close":true},
|
|
{"sleep":1},
|
|
{"command":"stats","params":{"flow_id":"@a"},"expect":{"status":"error"}},
|
|
{"command":"arrive","params":{"peer":"'"$PEER"'","src_port":5000,"dst_port":4304,"data":"bb"},
|
|
"expect":{"status":"ok","data.outcome":"announced"}},
|
|
{"accept":"L","keep_fd":"b","expect":{"local_port":4304,"remote_port":5000}},
|
|
{"fd":"b","read":1,"expect_bytes":"bb"}
|
|
]'
|
|
if run_client "$script"; then
|
|
pass "a refused flow is gone and its key is free to arrive again"
|
|
else
|
|
fail "closing a refused flow did not release it"
|
|
fi
|
|
}
|
|
|
|
# The refusal a gated debug command earns, one per command name.
|
|
gate_refusal() {
|
|
printf "'%s' is a debug command and is disabled; set node.native_api.debug_commands to enable it" "$1"
|
|
}
|
|
|
|
check_debug_commands_gated() {
|
|
log "The debug commands are refused where the gate is closed"
|
|
local gated_dir
|
|
gated_dir="$(shared_tmpdir)"
|
|
start_node "$GATED_NAME" node-debug-off.yaml "$gated_dir"
|
|
if ! wait_for_socket "$gated_dir/api.sock"; then
|
|
fail "the gated node never bound its socket, so nothing here proves anything"
|
|
docker logs "$GATED_NAME" 2>&1 | tail -20
|
|
docker rm -f "$GATED_NAME" >/dev/null 2>&1
|
|
rm -rf "$gated_dir"
|
|
return 1
|
|
fi
|
|
|
|
# Every command below names a flow and a port this connection really holds,
|
|
# opened one step earlier. That is what makes the refusals discriminating:
|
|
# ungated, all three succeed, so an error here can only have come from the
|
|
# gate. The message is asserted whole for the same reason — a refusal that
|
|
# said "no such flow" would otherwise pass as a refusal.
|
|
local gated_script
|
|
gated_script="$(cat <<JSON
|
|
[
|
|
{"command":"connect","params":{"peer":"$PEER","remote_port":4242,"local_port":5000},
|
|
"keep_fd":"a","keep_flow":"a","expect":{"status":"ok"}},
|
|
{"command":"inject","params":{"flow_id":"@a","data":"00ff10"},
|
|
"expect":{"status":"error","message":"$(gate_refusal inject)"}},
|
|
{"command":"stats","params":{"flow_id":"@a"},
|
|
"expect":{"status":"error","message":"$(gate_refusal stats)"}},
|
|
{"command":"arrive","params":{"peer":"$PEER","src_port":4242,"dst_port":5000,"data":"00"},
|
|
"expect":{"status":"error","message":"$(gate_refusal arrive)"}},
|
|
{"command":"listen","params":{"local_port":4243},"keep_listener":"L","expect":{"status":"ok"}}
|
|
]
|
|
JSON
|
|
)"
|
|
if run_client_at "$gated_dir" 10 "$gated_script"; then
|
|
pass "all three are refused by name, and the connection survives"
|
|
else
|
|
fail "a debug command was not refused as the gate says it should be"
|
|
docker logs "$GATED_NAME" 2>&1 | tail -20
|
|
fi
|
|
|
|
docker rm -f "$GATED_NAME" >/dev/null 2>&1
|
|
rm -rf "$gated_dir"
|
|
|
|
# The other half of the guard: the same three commands, same shape, against
|
|
# the node that has the key on. A gate that refused a legitimate run would
|
|
# be no use, and nothing above would notice.
|
|
local open_script
|
|
open_script="$(cat <<JSON
|
|
[
|
|
{"command":"connect","params":{"peer":"$PEER","remote_port":4242,"local_port":5000},
|
|
"keep_fd":"a","keep_flow":"a","expect":{"status":"ok"}},
|
|
{"command":"inject","params":{"flow_id":"@a","data":"00ff10"},"expect":{"status":"ok"}},
|
|
{"command":"stats","params":{"flow_id":"@a"},"expect":{"status":"ok"}},
|
|
{"command":"arrive","params":{"peer":"$PEER","src_port":4242,"dst_port":5000,"data":"00"},
|
|
"expect":{"status":"ok","data.outcome":"delivered"}}
|
|
]
|
|
JSON
|
|
)"
|
|
if run_client "$open_script"; then
|
|
pass "the same three are answered where the key is on"
|
|
else
|
|
fail "the gate refused a run the key should have allowed"
|
|
fi
|
|
}
|
|
|
|
# Every public item of fips::native::client, asserted against the live daemon.
|
|
#
|
|
# The other checks here drive the daemon through client.py, which speaks the
|
|
# line protocol by hand. That covers the wire and covers nothing of the Rust
|
|
# surface a caller actually links against: until this check, five public entry
|
|
# points (FipsStream::connect, connect_from, connect_at, FipsListener::bind and
|
|
# bind_at) had no coverage of any kind, and the rest were exercised only against
|
|
# the unit tests' hand-written stand-in daemon. A stand-in kinder than the real
|
|
# thing has already hidden a defect once, so the walk runs against the daemon.
|
|
#
|
|
# It runs last among the single-node checks. check_ephemeral_allocation asserts
|
|
# 49152, 49153 and 49154 as the first three ports this node ever hands out and
|
|
# the allocator is a forward-only cursor, so the walk goes after it and asserts
|
|
# only that its own ephemeral ports are >= 49152. Its named ports come from the
|
|
# otherwise unused 4800-4809 band.
|
|
check_surface_walk() {
|
|
log "The client's whole public surface holds against a live daemon"
|
|
|
|
local walk_log status=0
|
|
walk_log="$(mktemp)"
|
|
run_surface_at "$SOCK_DIR" "$SURFACE" walk /run/fips/api.sock "$PEER" \
|
|
>"$walk_log" 2>&1 || status=$?
|
|
|
|
if [[ $status -eq 124 ]]; then
|
|
# The bound had to end it. The binary's own watchdog fires at 30s and
|
|
# names the assertion it was in, so reaching this means the walk never
|
|
# got far enough to arm it.
|
|
fail "the surface walk did not finish inside its 60s bound, and its own watchdog never reported"
|
|
tail -5 "$walk_log"
|
|
rm -f "$walk_log"
|
|
return 1
|
|
fi
|
|
if [[ $status -eq 125 ]]; then
|
|
# The container did not start, or its exit code could not be read.
|
|
# Nothing was observed, so nothing may be reported about the surface.
|
|
fail "the surface walk did not run, so it says nothing about the surface"
|
|
tail -5 "$walk_log"
|
|
rm -f "$walk_log"
|
|
return 1
|
|
fi
|
|
if [[ $status -ne 0 ]]; then
|
|
# The binary prints one line naming the assertion that failed, or the
|
|
# one the watchdog found in flight. Show it rather than the verdict
|
|
# alone: the assertion name is the whole diagnostic.
|
|
fail "the surface walk reported a failed assertion"
|
|
tail -5 "$walk_log"
|
|
rm -f "$walk_log"
|
|
return 1
|
|
fi
|
|
|
|
# Three separate claims, not one. The exit status above says the binary
|
|
# reported no failure; the completion line says it reached its own end
|
|
# rather than exiting 0 from somewhere else; the count says every assertion
|
|
# block ran. Only the count catches a block that stopped running, since a
|
|
# #[cfg] gate that no longer matches or an early return still exits 0 and
|
|
# still prints the line.
|
|
local counted
|
|
counted="$(sed -n 's/^native-surface: walk complete, \([0-9][0-9]*\) assertions passed$/\1/p' \
|
|
"$walk_log")"
|
|
if [[ -z "$counted" ]]; then
|
|
fail "the surface walk exited 0 without printing its completion line"
|
|
tail -5 "$walk_log"
|
|
elif [[ "$counted" -ne "$SURFACE_ASSERTIONS" ]]; then
|
|
fail "the surface walk passed $counted assertions, wanted $SURFACE_ASSERTIONS"
|
|
tail -5 "$walk_log"
|
|
else
|
|
pass "all $SURFACE_ASSERTIONS assertions of the client surface hold against the daemon"
|
|
fi
|
|
rm -f "$walk_log"
|
|
}
|
|
|
|
# ─────────────────────────────────────────────────────────────────────
|
|
# Two nodes: the wire itself
|
|
# ─────────────────────────────────────────────────────────────────────
|
|
|
|
MESH="native-api-$$"
|
|
NET="fips-native-api-net-$$"
|
|
NODE_A="fips-native-a-$$"
|
|
NODE_B="fips-native-b-$$"
|
|
ECHO="fips-native-echo-$$"
|
|
DIR_A=""
|
|
DIR_B=""
|
|
|
|
# Write a node config peering with the other node.
|
|
#
|
|
# No debug_commands: the wire checks below drive real traffic between two nodes
|
|
# and need none of the three, which is the shape a packaged node runs in.
|
|
write_node_config() {
|
|
local dir="$1" nsec="$2" peer_npub="$3" peer_host="$4"
|
|
cat > "$dir/fips.yaml" <<YAML
|
|
node:
|
|
identity:
|
|
nsec: "$nsec"
|
|
native_api:
|
|
enabled: true
|
|
socket_path: "/run/fips/api.sock"
|
|
|
|
tun:
|
|
enabled: false
|
|
|
|
dns:
|
|
enabled: false
|
|
|
|
transports:
|
|
udp:
|
|
bind_addr: "0.0.0.0:2121"
|
|
mtu: 1472
|
|
|
|
peers:
|
|
- npub: "$peer_npub"
|
|
alias: "$peer_host"
|
|
addresses:
|
|
- transport: udp
|
|
addr: "$peer_host:2121"
|
|
YAML
|
|
}
|
|
|
|
# Wait up to `timeout` seconds for the two nodes to have a working link.
|
|
#
|
|
# Without this the clients race the handshake: connect still succeeds, the
|
|
# datagram is held in the native pending queue, and whether it arrives inside
|
|
# the listener's timeout depends on how long peering took. The first run of this
|
|
# check failed that way and passed on a rerun, which is the signature of a race
|
|
# rather than of a defect in what is being tested.
|
|
#
|
|
# The marker is the spanning tree forming, not a peer-promotion line: on this
|
|
# path — a configured peer, dialled outbound — the promotion message is never
|
|
# emitted, which cost a round of guessing. Exactly one of the two nodes adopts
|
|
# the other as its parent, so the check accepts the marker on either.
|
|
wait_for_link() {
|
|
local timeout="${1:-45}" waited=0
|
|
while [[ $waited -lt $timeout ]]; do
|
|
if docker logs "$NODE_A" 2>&1 | grep -q "Parent switched" \
|
|
|| docker logs "$NODE_B" 2>&1 | grep -q "Parent switched"; then
|
|
return 0
|
|
fi
|
|
sleep 1
|
|
waited=$((waited + 1))
|
|
done
|
|
return 1
|
|
}
|
|
|
|
# Wait up to `timeout` seconds for a client's log to report a step done.
|
|
#
|
|
# A client container having been launched is not the same as its step having
|
|
# taken effect, and the two ends here race each other: the sender's datagram
|
|
# would reach a port nothing held yet if it won. The client prints one line per
|
|
# completed step, so the log is the synchronisation point.
|
|
wait_for_step() {
|
|
local log="$1" marker="$2" timeout="${3:-30}" waited=0
|
|
while [[ $waited -lt $timeout ]]; do
|
|
grep -qF "$marker" "$log" && return 0
|
|
sleep 1
|
|
waited=$((waited + 1))
|
|
done
|
|
return 1
|
|
}
|
|
|
|
# Run a client script against one node's socket directory.
|
|
run_client_at() {
|
|
local sockdir="$1" timeout="$2" script="$3"
|
|
docker run --rm --label "$LABEL" \
|
|
-v "$sockdir:/run/fips" \
|
|
-v "$SCRIPT_DIR:/harness:ro" \
|
|
--entrypoint python3 \
|
|
"$IMAGE" -u /harness/client.py --socket /run/fips/api.sock \
|
|
--timeout "$timeout" --script "$script"
|
|
}
|
|
|
|
# Run the native-echo example against one node's socket, in its own container.
|
|
#
|
|
# The same container shape as the python client: the socket directory bind
|
|
# mounted, nothing else. The example is a compiled entrypoint rather than a
|
|
# script, so no harness mount is needed. It is named because it never exits on
|
|
# its own and the caller has to remove it.
|
|
run_echo_at() {
|
|
local sockdir="$1" name="$2" port="$3"
|
|
docker run --rm --name "$name" --label "$LABEL" \
|
|
-v "$sockdir:/run/fips" \
|
|
--entrypoint /usr/local/bin/native-echo \
|
|
"$IMAGE" /run/fips/api.sock "$port"
|
|
}
|
|
|
|
# Run the native-surface example against one node's socket, in its own
|
|
# container, under a wall-clock bound. Prints what the container printed and
|
|
# returns its exit code, or 124 when the bound had to end it.
|
|
#
|
|
# The same container shape as native-echo: the socket directory bind mounted,
|
|
# nothing else. The bound is a backstop rather than the expected wait. The
|
|
# binary arms its own 30-second watchdog, which is what turns a blocked recv or
|
|
# accept into a red that names the assertion in flight; this catches only what
|
|
# the watchdog cannot reach, an image that never starts or a process that wedged
|
|
# before the thread was armed. Without a bound a wedged container never returns,
|
|
# the run never reaches its summary line, and in CI the step's own 15-minute
|
|
# timeout kills it with nothing said.
|
|
#
|
|
# `timeout 60 docker run` is NOT that bound, which a break-check measured rather
|
|
# than a reading of the manual: `timeout` sends SIGTERM to the docker client,
|
|
# the client proxies it to the container, and the walk is PID 1 there with no
|
|
# handler for it, so the kernel discards it. The container was still up five
|
|
# minutes after the bound passed and `docker run` never returned. Polling the
|
|
# container's own state and then removing it by force is what actually ends it,
|
|
# since `docker rm -f` is a SIGKILL and PID 1 cannot discard that.
|
|
#
|
|
# Detached rather than attached for the same reason: there is no client process
|
|
# left holding the run, so nothing to kill and nothing to wait on but the
|
|
# container itself. That also means `--rm` cannot be used — it would race the
|
|
# inspect that reads the exit code out — so the container is named and removed
|
|
# here on every path.
|
|
run_surface_at() {
|
|
local sockdir="$1" name="$2"
|
|
shift 2
|
|
docker rm -f "$name" >/dev/null 2>&1
|
|
if ! docker run -d --name "$name" --label "$LABEL" \
|
|
-v "$sockdir:/run/fips" \
|
|
--entrypoint /usr/local/bin/native-surface \
|
|
"$IMAGE" "$@" >/dev/null; then
|
|
echo "the surface container did not start"
|
|
return 125
|
|
fi
|
|
|
|
local waited=0
|
|
while [[ $waited -lt 60 ]]; do
|
|
[[ "$(docker inspect -f '{{.State.Running}}' "$name" 2>/dev/null)" != "true" ]] && break
|
|
sleep 1
|
|
waited=$((waited + 1))
|
|
done
|
|
|
|
local status
|
|
if [[ "$(docker inspect -f '{{.State.Running}}' "$name" 2>/dev/null)" == "true" ]]; then
|
|
status=124
|
|
else
|
|
status="$(docker inspect -f '{{.State.ExitCode}}' "$name" 2>/dev/null)"
|
|
fi
|
|
docker logs "$name" 2>&1
|
|
docker rm -f "$name" >/dev/null 2>&1
|
|
|
|
# An inspect that could not read the container has observed nothing, and
|
|
# must not be reported as the walk having succeeded.
|
|
[[ "$status" =~ ^[0-9]+$ ]] || status=125
|
|
return "$status"
|
|
}
|
|
|
|
# Query one node's control socket, printing the reply and failing when an
|
|
# expectation does not hold.
|
|
#
|
|
# This needs nothing added to the image. The control socket is enabled by
|
|
# default, its default path resolves to the same bind-mounted /run/fips the
|
|
# native API socket lands in, and the client image already carries python3, so
|
|
# the same container shape that reaches api.sock reaches control.sock.
|
|
query_control() {
|
|
local sockdir="$1" command="$2"
|
|
shift 2
|
|
local expects=() expectation
|
|
for expectation in "$@"; do
|
|
expects+=(--expect "$expectation")
|
|
done
|
|
docker run --rm --label "$LABEL" \
|
|
-v "$sockdir:/run/fips" \
|
|
-v "$SCRIPT_DIR:/harness:ro" \
|
|
--entrypoint python3 \
|
|
"$IMAGE" -u /harness/control.py --socket /run/fips/control.sock \
|
|
--command "$command" ${expects[@]+"${expects[@]}"}
|
|
}
|
|
|
|
# Poll one show_native_flows expectation until it holds or `timeout` passes.
|
|
#
|
|
# Everything asserted here is downstream of a datagram crossing the wire, so a
|
|
# single immediate query would be asserting against a state the node has not
|
|
# reached yet and would fail for timing rather than for substance.
|
|
wait_control() {
|
|
local sockdir="$1" timeout="$2" expectation="$3" waited=0
|
|
while [[ $waited -lt $timeout ]]; do
|
|
query_control "$sockdir" show_native_flows "$expectation" >/dev/null 2>&1 && return 0
|
|
sleep 1
|
|
waited=$((waited + 1))
|
|
done
|
|
return 1
|
|
}
|
|
|
|
teardown_two_nodes() {
|
|
docker rm -f "$ECHO" >/dev/null 2>&1
|
|
docker rm -f "$NODE_A" "$NODE_B" >/dev/null 2>&1
|
|
docker network rm "$NET" >/dev/null 2>&1
|
|
[[ -n "$DIR_A" ]] && rm -rf "$DIR_A"
|
|
[[ -n "$DIR_B" ]] && rm -rf "$DIR_B"
|
|
return 0
|
|
}
|
|
|
|
check_end_to_end() {
|
|
log "A datagram travels from one node's client to the other's"
|
|
|
|
local keys_a keys_b nsec_a npub_a nsec_b npub_b
|
|
keys_a="$(python3 "$REPO_ROOT/testing/lib/derive_keys.py" "$MESH" node-a)"
|
|
keys_b="$(python3 "$REPO_ROOT/testing/lib/derive_keys.py" "$MESH" node-b)"
|
|
nsec_a="$(sed -n 's/^nsec=//p' <<<"$keys_a")"
|
|
npub_a="$(sed -n 's/^npub=//p' <<<"$keys_a")"
|
|
nsec_b="$(sed -n 's/^nsec=//p' <<<"$keys_b")"
|
|
npub_b="$(sed -n 's/^npub=//p' <<<"$keys_b")"
|
|
if [[ -z "$nsec_a" || -z "$npub_b" ]]; then
|
|
fail "could not derive node keys"
|
|
return 1
|
|
fi
|
|
|
|
DIR_A="$(shared_tmpdir)"
|
|
DIR_B="$(shared_tmpdir)"
|
|
local cfg_a cfg_b
|
|
cfg_a="$(shared_tmpdir)"
|
|
cfg_b="$(shared_tmpdir)"
|
|
write_node_config "$cfg_a" "$nsec_a" "$npub_b" "$NODE_B"
|
|
write_node_config "$cfg_b" "$nsec_b" "$npub_a" "$NODE_A"
|
|
|
|
docker network create --label "$LABEL" "$NET" >/dev/null 2>&1
|
|
local name
|
|
for name in "$NODE_A:$cfg_a:$DIR_A" "$NODE_B:$cfg_b:$DIR_B"; do
|
|
local container="${name%%:*}" rest="${name#*:}"
|
|
docker run -d --name "$container" --hostname "$container" \
|
|
--label "$LABEL" --network "$NET" \
|
|
-v "${rest%%:*}/fips.yaml:/etc/fips/fips.yaml:ro" \
|
|
-v "${rest#*:}:/run/fips" \
|
|
--entrypoint /usr/local/bin/fips \
|
|
"$IMAGE" --config /etc/fips/fips.yaml >/dev/null
|
|
done
|
|
rm -rf "$cfg_a" "$cfg_b"
|
|
|
|
if ! wait_for_running "$NODE_A" 20 || ! wait_for_running "$NODE_B" 20; then
|
|
fail "the two nodes did not both start"
|
|
docker logs "$NODE_A" 2>&1 | tail -10
|
|
teardown_two_nodes
|
|
return 1
|
|
fi
|
|
if ! wait_for_socket "$DIR_A/api.sock" 20 || ! wait_for_socket "$DIR_B/api.sock" 20; then
|
|
fail "a native API socket did not appear"
|
|
teardown_two_nodes
|
|
return 1
|
|
fi
|
|
if ! wait_for_link 45; then
|
|
fail "the two nodes did not form a link"
|
|
docker logs "$NODE_A" 2>&1 | tail -10
|
|
teardown_two_nodes
|
|
return 1
|
|
fi
|
|
|
|
# B listens and waits. Its client blocks on the arrival, so it is started
|
|
# first and in the background; A's send is what unblocks it.
|
|
#
|
|
# The payload is deliberately not a valid IPv6 packet. If a native datagram
|
|
# were ever routed through the TUN pending queue it would be handed to the
|
|
# IPv6 compressor, which would refuse it, and this check would fail — which
|
|
# is the point: the trap is asserted rather than trusted.
|
|
#
|
|
# The arrival'"'"'s peer is asserted to be the sending node'"'"'s npub. That is the
|
|
# whole point of the redesign at this end: the peer'"'"'s key is captured where
|
|
# its session authenticated it, so an accepted flow reports a real address in
|
|
# the same representation a connected one does, rather than a hash of it.
|
|
local listener='[
|
|
{"command":"listen","params":{"local_port":4400},"keep_listener":"L",
|
|
"expect":{"status":"ok"}},
|
|
{"accept":"L","keep_fd":"a",
|
|
"expect":{"local_port":4400,"remote_port":4401,"peer":"'"$npub_a"'"}},
|
|
{"fd":"a","read":1,"expect_bytes":"0011223344"}
|
|
]'
|
|
local listener_log
|
|
listener_log="$(mktemp)"
|
|
run_client_at "$DIR_B" 90 "$listener" >"$listener_log" 2>&1 &
|
|
local listener_pid=$!
|
|
|
|
# Wait until the listener has actually bound its port. Launching it first is
|
|
# not the same as it having registered: both clients start their own
|
|
# container, and if the sender won that race its datagram would arrive at a
|
|
# port nothing held and be dropped, with no listener left to tell.
|
|
if ! wait_for_step "$listener_log" "step 0 (listen) ok" 30; then
|
|
fail "the listener never bound its port"
|
|
cat "$listener_log" | tail -5
|
|
kill "$listener_pid" 2>/dev/null
|
|
teardown_two_nodes
|
|
return 1
|
|
fi
|
|
|
|
# A sends before any session exists, so the datagram is held in the native
|
|
# pending queue and flushed when the session establishes.
|
|
local sender='[
|
|
{"command":"connect","params":{"peer":"'"$npub_b"'","remote_port":4400,"local_port":4401},
|
|
"keep_fd":"a","expect":{"status":"ok","data.max_payload":1362}},
|
|
{"fd":"a","write":"0011223344"},
|
|
{"fd":"a","readable":false}
|
|
]'
|
|
if run_client_at "$DIR_A" 30 "$sender" >/dev/null 2>&1; then
|
|
pass "the sender opened a flow and reported the real payload limit"
|
|
else
|
|
fail "the sender could not open a flow"
|
|
run_client_at "$DIR_A" 30 "$sender" 2>&1 | tail -5
|
|
fi
|
|
|
|
if wait "$listener_pid"; then
|
|
pass "the datagram arrived intact on the other node"
|
|
else
|
|
fail "the datagram did not arrive"
|
|
cat "$listener_log" | tail -10
|
|
echo "--- sender node:"
|
|
docker logs "$NODE_A" 2>&1 | grep -iE "native|session estab|pending" | tail -8
|
|
echo "--- listener node:"
|
|
docker logs "$NODE_B" 2>&1 | grep -iE "native|session estab|dropping" | tail -8
|
|
fi
|
|
rm -f "$listener_log"
|
|
check_control_reports_the_flow "$npub_a" "$npub_b"
|
|
check_echo_round_trip "$npub_b"
|
|
teardown_two_nodes
|
|
}
|
|
|
|
# The example server answering a real client across the wire.
|
|
#
|
|
# This is the first check here where both ends are programs a user could have
|
|
# written: the echo server is `examples/native-echo.rs` built against
|
|
# `fips::native::client`, and the sender is the harness client speaking the line
|
|
# protocol by hand. Every other two-ended check has the daemon's own debug
|
|
# surface on one side, so nothing until now has exercised the client module
|
|
# outside its unit tests.
|
|
#
|
|
# One exchange, one flow, which is the server's model: it echoes the datagram
|
|
# and drops the flow rather than waiting for a far-end close a datagram API
|
|
# never sends.
|
|
check_echo_round_trip() {
|
|
local npub_b="$1"
|
|
log "A datagram sent to the example echo server comes back unchanged"
|
|
|
|
local echo_log
|
|
echo_log="$(mktemp)"
|
|
run_echo_at "$DIR_B" "$ECHO" 4600 >"$echo_log" 2>&1 &
|
|
local echo_pid=$!
|
|
|
|
# The server having been launched is not the same as its port being held.
|
|
# Sending first would put the datagram at a port nothing owned yet, and the
|
|
# daemon would drop it with no server left to say so.
|
|
if ! wait_for_step "$echo_log" "holding port 4600" 30; then
|
|
fail "the echo server never bound its port"
|
|
tail -5 "$echo_log"
|
|
docker rm -f "$ECHO" >/dev/null 2>&1
|
|
wait "$echo_pid" 2>/dev/null
|
|
rm -f "$echo_log"
|
|
return 1
|
|
fi
|
|
|
|
# Five bytes that are not a valid IPv6 packet, for the reason the
|
|
# end-to-end check gives: anything routed through the TUN pending queue
|
|
# would be refused by the compressor and this check would fail rather than
|
|
# pass by a route it is not testing.
|
|
local sender='[
|
|
{"command":"connect","params":{"peer":"'"$npub_b"'","remote_port":4600,"local_port":4601},
|
|
"keep_fd":"a","expect":{"status":"ok"}},
|
|
{"fd":"a","write":"5a5b5c5d5e"},
|
|
{"fd":"a","read":1,"expect_bytes":"5a5b5c5d5e"}
|
|
]'
|
|
if run_client_at "$DIR_A" 30 "$sender" >/dev/null 2>&1; then
|
|
pass "the echo server returned the same bytes on the same flow"
|
|
else
|
|
fail "the datagram did not come back from the echo server"
|
|
run_client_at "$DIR_A" 30 "$sender" 2>&1 | tail -5
|
|
echo "--- echo server:"
|
|
tail -10 "$echo_log"
|
|
fi
|
|
|
|
docker rm -f "$ECHO" >/dev/null 2>&1
|
|
wait "$echo_pid" 2>/dev/null
|
|
rm -f "$echo_log"
|
|
return 0
|
|
}
|
|
|
|
# What the daemon says about a flow that is still open, read the way an operator
|
|
# reads it: `show_native_flows` over the control socket.
|
|
#
|
|
# It runs on the two-node mesh because that is the only place a flow has a real
|
|
# peer to resolve, a real port at each end, and counters nothing but the wire can
|
|
# move. Both clients hold their *descriptors* open across the {"sleep":45} while
|
|
# the check looks, because a flow is gone from the registry the moment its last
|
|
# descriptor closes, and a query against an empty registry would agree with a
|
|
# publisher that dropped every field. The RPC connections are irrelevant to that:
|
|
# a flow outlives the connection that opened it, and closing one releases
|
|
# nothing.
|
|
check_control_reports_the_flow() {
|
|
local npub_a="$1" npub_b="$2"
|
|
log "The control socket reports a live flow, its peer and its counters"
|
|
|
|
local listener='[
|
|
{"command":"listen","params":{"local_port":4500},"keep_listener":"L",
|
|
"expect":{"status":"ok"}},
|
|
{"accept":"L","keep_fd":"a","expect":{"local_port":4500,"peer":"'"$npub_a"'"}},
|
|
{"fd":"a","read":1,"expect_bytes":"a1b2c3"},
|
|
{"sleep":45}
|
|
]'
|
|
local listener_log
|
|
listener_log="$(mktemp)"
|
|
run_client_at "$DIR_B" 120 "$listener" >"$listener_log" 2>&1 &
|
|
local listener_pid=$!
|
|
|
|
if ! wait_for_step "$listener_log" "step 0 (listen) ok" 30; then
|
|
fail "the listener never bound port 4500"
|
|
tail -5 "$listener_log"
|
|
kill "$listener_pid" 2>/dev/null
|
|
rm -f "$listener_log"
|
|
return 1
|
|
fi
|
|
|
|
local sender='[
|
|
{"command":"connect","params":{"peer":"'"$npub_b"'","remote_port":4500,"local_port":4501},
|
|
"keep_fd":"a","expect":{"status":"ok"}},
|
|
{"fd":"a","write":"a1b2c3"},
|
|
{"sleep":45}
|
|
]'
|
|
local sender_log
|
|
sender_log="$(mktemp)"
|
|
run_client_at "$DIR_A" 120 "$sender" >"$sender_log" 2>&1 &
|
|
local sender_pid=$!
|
|
|
|
if ! wait_for_step "$sender_log" "step 1 (fd a) ok" 30; then
|
|
fail "the sender never opened a flow on port 4501"
|
|
tail -5 "$sender_log"
|
|
kill "$sender_pid" "$listener_pid" 2>/dev/null
|
|
rm -f "$sender_log" "$listener_log"
|
|
return 1
|
|
fi
|
|
if ! wait_for_step "$listener_log" "step 2 (fd a) ok" 30; then
|
|
fail "the datagram never reached the listener, so there is no live flow to report"
|
|
tail -5 "$listener_log"
|
|
kill "$sender_pid" "$listener_pid" 2>/dev/null
|
|
rm -f "$sender_log" "$listener_log"
|
|
return 1
|
|
fi
|
|
|
|
# `show_native_flows` renders from a snapshot the node publishes on its
|
|
# maintenance tick, so a query fired the instant a flow opens can legitimately
|
|
# answer from before it existed. Converge first, then assert the whole row:
|
|
# otherwise this check would be measuring the tick interval.
|
|
wait_control "$DIR_A" 15 "data.flows.0.local_port=4501"
|
|
|
|
# The sending end: its own port, the far port, the peer as the npub the
|
|
# config names it by, and the send counter moved. The npub is a field on the
|
|
# flow now rather than something resolved when the row is rendered, and
|
|
# `peer_addr` stays beside it because this is the operator surface and the
|
|
# node address is what show_sessions and show_routing key on.
|
|
if query_control "$DIR_A" show_native_flows \
|
|
"data.flows.0.local_port=4501" \
|
|
"data.flows.0.remote_port=4500" \
|
|
"data.flows.0.peer=$npub_b" \
|
|
"data.flows.0.state=established" \
|
|
"data.stats.sent_datagrams>0" >/dev/null; then
|
|
pass "the open flow is reported with both ports, its peer and a moved counter"
|
|
else
|
|
fail "the sending end's flow is not reported as opened"
|
|
query_control "$DIR_A" show_native_flows 2>&1 | tail -3
|
|
fi
|
|
|
|
wait_control "$DIR_B" 15 "data.flows.0.local_port=4500"
|
|
|
|
# The listening end: the ports are the mirror image, and the listener itself
|
|
# is reported with an empty backlog now the flow has been accepted off it.
|
|
if query_control "$DIR_B" show_native_flows \
|
|
"data.flows.0.local_port=4500" \
|
|
"data.flows.0.remote_port=4501" \
|
|
"data.flows.0.peer=$npub_a" \
|
|
"data.flows.0.state=established" \
|
|
"data.listeners.0.local_port=4500" \
|
|
"data.listeners.0.backlog=0" \
|
|
"data.stats.received_datagrams>0" >/dev/null; then
|
|
pass "the same flow and its listener are reported from the other side"
|
|
else
|
|
fail "the listening end's flow is not reported as accepted"
|
|
query_control "$DIR_B" show_native_flows 2>&1 | tail -3
|
|
fi
|
|
|
|
# A datagram to a port nothing holds. The far node has neither a flow nor a
|
|
# listener for 4599, so the registry drops it and says why. Pinning the other
|
|
# drop counters at zero is what makes this a check about drop_no_port rather
|
|
# than about some drop having happened.
|
|
local probe='[
|
|
{"command":"connect","params":{"peer":"'"$npub_b"'","remote_port":4599,"local_port":4502},
|
|
"keep_fd":"a","expect":{"status":"ok"}},
|
|
{"fd":"a","write":"deadbeef"}
|
|
]'
|
|
if ! run_client_at "$DIR_A" 30 "$probe" >/dev/null 2>&1; then
|
|
fail "the probe client could not send to an unheld port"
|
|
elif ! wait_control "$DIR_B" 20 "data.stats.drop_no_port>0"; then
|
|
fail "a datagram to an unheld port did not increment drop_no_port"
|
|
query_control "$DIR_B" show_native_flows 2>&1 | tail -3
|
|
elif query_control "$DIR_B" show_native_flows \
|
|
"data.stats.drop_backlog_full=0" \
|
|
"data.stats.drop_too_many_flows=0" \
|
|
"data.stats.drop_pending_queue_full=0" \
|
|
"data.stats.drop_flow_queue_full=0" \
|
|
"data.stats.drop_arrival_queue_full=0" \
|
|
"data.stats.drop_listener_gone=0" \
|
|
"data.stats.drop_listener_not_reading=0" \
|
|
"data.stats.drop_oversize=0" >/dev/null; then
|
|
pass "an unheld port increments drop_no_port and no other drop counter"
|
|
else
|
|
fail "a drop counter other than drop_no_port moved"
|
|
query_control "$DIR_B" show_native_flows 2>&1 | tail -3
|
|
fi
|
|
|
|
wait "$sender_pid" || { fail "the sender client did not exit cleanly"; tail -5 "$sender_log"; }
|
|
wait "$listener_pid" || { fail "the listener client did not exit cleanly"; tail -5 "$listener_log"; }
|
|
rm -f "$sender_log" "$listener_log"
|
|
}
|
|
|
|
check_disabled_by_default() {
|
|
log "No socket appears when the API is not enabled"
|
|
local off_dir
|
|
off_dir="$(shared_tmpdir)"
|
|
start_node "${NODE_NAME}-off" node-api-off.yaml "$off_dir"
|
|
|
|
# The daemon must be proved alive before the absence of a socket means
|
|
# anything. Without this, a daemon that fails to start at all satisfies
|
|
# "no socket appeared" and the check passes for the wrong reason — which
|
|
# is exactly what it did on its first run, when the image was missing a
|
|
# shared library.
|
|
if ! wait_for_running "${NODE_NAME}-off" 20; then
|
|
fail "the daemon did not start, so the absence of a socket proves nothing"
|
|
docker logs "${NODE_NAME}-off" 2>&1 | tail -20
|
|
docker rm -f "${NODE_NAME}-off" >/dev/null 2>&1
|
|
rm -rf "$off_dir"
|
|
return 1
|
|
fi
|
|
|
|
if [[ -S "$off_dir/api.sock" ]]; then
|
|
fail "a socket appeared with the API disabled"
|
|
else
|
|
pass "the daemon is up and no socket was bound"
|
|
fi
|
|
docker rm -f "${NODE_NAME}-off" >/dev/null 2>&1
|
|
rm -rf "$off_dir"
|
|
}
|
|
|
|
# ─────────────────────────────────────────────────────────────────────
|
|
# Run
|
|
# ─────────────────────────────────────────────────────────────────────
|
|
|
|
resolve_image || exit 1
|
|
|
|
if check_socket_appears; then
|
|
check_socket_mode
|
|
check_commands_answered
|
|
check_ephemeral_allocation
|
|
check_reserved_ports_refused
|
|
check_bad_input_survives
|
|
check_descriptor_carries_datagrams
|
|
check_receive_direction
|
|
check_close_reaches_the_daemon
|
|
check_flows_are_independent
|
|
check_unknown_flow_refused
|
|
check_port_ownership
|
|
check_listen_accept_deliver
|
|
check_listener_is_pollable
|
|
check_dispatch_order
|
|
check_backlog_is_not_the_clients_bound
|
|
check_refusing_a_flow_frees_it
|
|
check_debug_commands_gated
|
|
check_surface_walk
|
|
fi
|
|
check_end_to_end
|
|
check_disabled_by_default
|
|
|
|
echo ""
|
|
echo "=== native-api: $PASS passed, $FAIL failed"
|
|
[[ $FAIL -eq 0 ]] || exit 1
|