Bryan Johnson
9289352454
nc-document.sh now sanitizes C0 control bytes (except tab/LF/CR) at the single output sink, so raw ESC sequences embedded in NetConfig/.tcl content can no longer flip the terminal's mode and break line editing when output isn't redirected. ssh-helper.sh password prompts save/restore termios via stty -g + trap so a ^C mid-prompt no longer leaves echo off. UTF-8 preserved; portable. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
1195 lines
59 KiB
Bash
Executable File
1195 lines
59 KiB
Bash
Executable File
#!/usr/bin/env bash
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# ssh-helper.sh — secure SSH command execution via ControlMaster.
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#
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# Architecture:
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# • Hosts configured in $LARRY_HOME/.ssh-hosts.tsv as
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# alias \t user@host \t port
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# • Passwords stored at $LARRY_HOME/.ssh-creds/<alias>, mode 0600.
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# The password file is the single point of truth — to rotate (daily-changing
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# passwords) just overwrite the file with the new one and re-run 'setup'.
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# • sshpass reads the password via -f (file), so it never lands in argv or
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# environment where Larry the LLM (or other processes via /proc) could see it.
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# • The first 'setup' call opens a long-lived SSH ControlMaster connection
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# (default ControlPersist=8h). Subsequent 'exec' calls multiplex through
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# the master socket and need no password.
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# • Larry's tool layer only sees: alias, command, command_output.
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# Never the password. Never the user@host (unless added to the alias list).
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#
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# Subcommands:
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# hosts list configured hosts
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# add <alias> <user@host[:port]> add a host to the alias list
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# remove <alias> remove an alias (also clears cred + socket)
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# pass <alias> set/update the password (hidden interactive)
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# set-hciroot <alias> <path> pin (persist) $HCIROOT for an alias. When
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# set, remote enumeration/exec runs with
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# HCIROOT=<path> exported EXPLICITLY and
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# WITHOUT the `bash -lc` login wrapper — for
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# hosts whose login profile is sudo-gated or
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# otherwise non-interactive (v0.8.15).
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# Pass an empty path to clear the pin.
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# set-direct <alias> on|off toggle (persist) DIRECT mode for an alias
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# (v0.8.17). When ON, ALL remote ops for the
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# alias BYPASS the ControlMaster and run a
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# FRESH per-command sshpass connection with
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# forced password auth. For hosts that reject
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# SSH session multiplexing ("read from master
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# failed: Connection reset by peer") — the
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# master opens but multiplexed sessions die.
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# The pinned HCIROOT (set-hciroot) is still
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# honoured: the remote command is shaped by
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# the same _remote_cmd_for path, just sent
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# over the direct connection. NO traffic
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# bypass — plain forced-password ssh, no
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# proxy/tunnel/masking, host-key checked
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# (accept-new). Persisted as TSV column 5.
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# setup <alias> open ControlMaster (uses stored password ONCE).
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# In DIRECT mode, skips the (pointless) master
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# and instead VALIDATES the password with one
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# trivial direct command, then reports ready.
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# close <alias> close ControlMaster
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# status [alias] show open masters / cred presence
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# exec <alias> <command...> run command via master (returns output)
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# discover <alias> auto-detect remote Cloverleaf env:
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# resolves $HCIROOT (LOGIN shell), then
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# enumerates sites (hcisitelist fast-path,
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# NetConfig-walk fallback). Prints TSV:
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# HCIROOT<TAB><path>
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# SITE<TAB><name> (one per site)
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# No nagging for paths — the remote's own
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# login profile is the source of truth.
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# pull <alias> <remote> [local] scp remote → local via existing master
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# push <alias> <local> <remote> scp local → remote via existing master
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# pull-smat <alias> <site> <thread> [days_back]
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# pull a thread's smatdb (full) or sample
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# recent messages from it (sampled, TSV b64)
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# help print this help
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set -u
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set -o pipefail
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LARRY_HOME="${LARRY_HOME:-$HOME/.larry}"
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SSH_HOSTS_FILE="$LARRY_HOME/.ssh-hosts.tsv"
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SSH_CREDS_DIR="$LARRY_HOME/.ssh-creds"
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SSH_SOCKETS_DIR="$LARRY_HOME/.ssh-sockets"
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SSH_CONTROL_PERSIST="${LARRY_SSH_CONTROL_PERSIST:-8h}"
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die() { printf 'ssh-helper: %s\n' "$*" >&2; exit 1; }
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warn() { printf 'ssh-helper: warn: %s\n' "$*" >&2; }
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ok() { printf 'ssh-helper: %s\n' "$*"; }
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# v0.8.25 — SAFE HIDDEN-PASSWORD READ (terminal-corruption fix).
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# Previously the hidden-password prompts did a bare `stty -echo` ... read ...
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# `stty echo`. If the user hit Ctrl-C (or the read got an EOF/signal) BETWEEN
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# those two stty calls, echo was never re-enabled and the terminal was left
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# corrupted (typing invisible) — recoverable only with `stty sane`/`reset`.
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# This wrapper SAVES the full prior termios state with `stty -g` and restores
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# it via a trap on EXIT/INT/TERM/HUP, so any interrupt path restores the tty.
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# Reads from /dev/tty (the real terminal), not stdin. Portable: `stty -g`/`stty <state>`
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# is POSIX and works on AIX/Linux/BSD/Cygwin; no GNU-only flags.
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# _read_hidden VARNAME
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# Sets the named variable to the line read (no echo). Returns 0 always (empty
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# input is the caller's "abort" signal).
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_read_hidden() { # varname
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local _rh_var="$1" _rh_val="" _rh_saved=""
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if command -v stty >/dev/null 2>&1 && { [ -t 0 ] || [ -e /dev/tty ]; }; then
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_rh_saved=$(stty -g </dev/tty 2>/dev/null || stty -g 2>/dev/null || true)
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# Restore on ANY exit from the prompt window — normal return OR ^C/kill/HUP.
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if [ -n "$_rh_saved" ]; then
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trap 'stty "$_rh_saved" </dev/tty 2>/dev/null || stty "$_rh_saved" 2>/dev/null; trap - INT TERM HUP' INT TERM HUP
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fi
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stty -echo </dev/tty 2>/dev/null || stty -echo 2>/dev/null || true
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IFS= read -r _rh_val </dev/tty 2>/dev/null || IFS= read -r _rh_val || true
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if [ -n "$_rh_saved" ]; then
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stty "$_rh_saved" </dev/tty 2>/dev/null || stty "$_rh_saved" 2>/dev/null || true
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else
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stty echo </dev/tty 2>/dev/null || stty echo 2>/dev/null || true
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fi
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trap - INT TERM HUP
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else
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IFS= read -r _rh_val </dev/tty 2>/dev/null || IFS= read -r _rh_val || true
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fi
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# Assign back to the caller's variable name without eval-injection risk.
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printf -v "$_rh_var" '%s' "$_rh_val"
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}
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# v0.7.5: shared CR-safety primitives. pull/push use `wc -c | tr -d ' '` to
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# verify byte counts — Cygwin wc.exe can pass through \r and tank the
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# `[ "$got" != "$local_size" ]` comparison.
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_SSH_LIB_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" 2>/dev/null && pwd)"
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if [ -r "$_SSH_LIB_DIR/cygwin-safe.sh" ]; then
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# shellcheck disable=SC1090,SC1091
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. "$_SSH_LIB_DIR/cygwin-safe.sh"
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else
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coerce_int() { local r="${1:-}" d="${2:-0}" c; c=$(printf '%s' "$r" | tr -cd '0-9'); printf '%s' "${c:-$d}"; }
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fi
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ensure_layout() {
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mkdir -p "$LARRY_HOME" "$SSH_CREDS_DIR" "$SSH_SOCKETS_DIR" 2>/dev/null
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chmod 700 "$LARRY_HOME" "$SSH_CREDS_DIR" "$SSH_SOCKETS_DIR" 2>/dev/null || true
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if [ ! -f "$SSH_HOSTS_FILE" ]; then
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umask 077
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# v0.8.15: 4th column = pinned HCIROOT (optional). Older 3-column files stay
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# valid — readers treat a missing $4 as "no pin".
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# v0.8.17: 5th column = direct flag (on|off, optional). Older 3-/4-column
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# files stay valid — readers treat a missing/empty $5 as "off" (master mode).
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printf 'alias\taddr\tport\thciroot\tdirect\n' > "$SSH_HOSTS_FILE"
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chmod 600 "$SSH_HOSTS_FILE"
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fi
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}
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# read_host_addr ALIAS → echoes "ADDR\tPORT" or empty
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read_host_addr() {
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local alias="$1"
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[ -f "$SSH_HOSTS_FILE" ] || { printf ''; return 1; }
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awk -F'\t' -v a="$alias" 'NR>1 && $1==a { print $2 "\t" $3; exit }' < "$SSH_HOSTS_FILE"
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}
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# read_host_hciroot ALIAS → echoes the pinned HCIROOT (column 4) or empty.
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# v0.8.15: a non-empty value means remote commands for this alias run with
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# HCIROOT exported explicitly and WITHOUT the `bash -lc` login wrapper.
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read_host_hciroot() {
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local alias="$1"
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[ -f "$SSH_HOSTS_FILE" ] || { printf ''; return 0; }
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awk -F'\t' -v a="$alias" 'NR>1 && $1==a { print $4; exit }' < "$SSH_HOSTS_FILE"
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}
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# read_host_direct ALIAS → echoes "on" if DIRECT mode is set (column 5 == on),
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# else empty. v0.8.17: when on, ALL remote ops for the alias bypass the
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# ControlMaster and run a fresh per-command sshpass connection (for hosts that
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# reject session multiplexing). Missing/empty/anything-but-"on" → master mode.
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read_host_direct() {
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local alias="$1"
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[ -f "$SSH_HOSTS_FILE" ] || { printf ''; return 0; }
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awk -F'\t' -v a="$alias" 'NR>1 && $1==a && $5=="on" { print "on"; exit }' < "$SSH_HOSTS_FILE"
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}
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# _alias_is_direct ALIAS → returns 0 (true) if the alias is in DIRECT mode.
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_alias_is_direct() {
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[ "$(read_host_direct "$1")" = "on" ]
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}
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require_sshpass() {
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command -v sshpass >/dev/null 2>&1 \
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|| die "sshpass not on PATH — install it (apt install sshpass / brew install sshpass) and retry"
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}
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cmd_help() {
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sed -n '4,65p' "$0"
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}
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cmd_hosts() {
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ensure_layout
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# v0.7.5: coerce_int on wc output — Cygwin wc.exe CR-taint would tank
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# the `-le 1` integer test below.
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if [ "$(coerce_int "$(wc -l < "$SSH_HOSTS_FILE")" 0)" -le 1 ]; then
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echo "no hosts configured. Add with: ssh-helper.sh add <alias> <user@host[:port]>"
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return 0
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fi
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printf 'alias user@host port cred master direct hciroot-pin\n'
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printf '%s\n' '───── ───────── ──── ──── ────── ────── ───────────'
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awk -F'\t' 'NR>1' "$SSH_HOSTS_FILE" | while IFS=$'\t' read -r alias addr port hciroot direct; do
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local cred_state="–"
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[ -f "$SSH_CREDS_DIR/$alias" ] && cred_state="✓"
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# v0.8.17: in DIRECT mode the master column reads "n/a" — there is no master
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# to probe (and probing it would be a meaningless socket check). The direct
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# column shows on/–.
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local direct_state="–"
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[ "$direct" = "on" ] && direct_state="on"
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local master_state="–"
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if [ "$direct" = "on" ]; then
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master_state="n/a"
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else
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local sock="$SSH_SOCKETS_DIR/$alias.sock"
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if [ -S "$sock" ] && ssh -S "$sock" -O check -p "$port" "$addr" 2>/dev/null; then
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master_state="open"
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fi
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fi
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printf '%-20s%-52s%-6s%-6s%-8s%-8s%s\n' "$alias" "$addr" "${port:-22}" "$cred_state" "$master_state" "$direct_state" "${hciroot:-–}"
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done
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}
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cmd_add() {
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local alias="${1:-}" target="${2:-}"
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[ -n "$alias" ] && [ -n "$target" ] || die "usage: add <alias> <user@host[:port]>"
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[[ "$target" =~ ^[^@[:space:]]+@[^:[:space:]]+(:[0-9]+)?$ ]] \
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|| die "target must look like user@host or user@host:port"
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local addr port
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if [[ "$target" == *:* ]]; then
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addr="${target%:*}"
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port="${target##*:}"
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else
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addr="$target"
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port="22"
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fi
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ensure_layout
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# Reject duplicates (use 'remove' first)
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if awk -F'\t' -v a="$alias" 'NR>1 && $1==a { found=1; exit } END { exit !found }' "$SSH_HOSTS_FILE"; then
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die "alias '$alias' already exists. Use 'remove $alias' first."
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fi
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umask 077
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# v0.8.15: write an empty 4th (hciroot) field so the row layout is uniform.
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# v0.8.17: write an empty 5th (direct) field too — uniform 5-column rows.
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printf '%s\t%s\t%s\t%s\t%s\n' "$alias" "$addr" "$port" "" "" >> "$SSH_HOSTS_FILE"
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chmod 600 "$SSH_HOSTS_FILE"
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ok "added $alias → $addr (port $port). Next: ssh-helper.sh pass $alias"
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}
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# cmd_set_hciroot ALIAS [PATH] — pin (or clear) the HCIROOT for an alias.
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# Persisted as column 4 of the hosts TSV. An empty/omitted PATH clears the pin.
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# When set, cmd_exec/cmd_discover/cmd_pull_smat run remote commands with
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# HCIROOT=<path> exported EXPLICITLY and WITHOUT the `bash -lc` login wrapper —
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# the v0.8.15 fix for hosts whose login profile is sudo-gated (a non-interactive
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# SSH session hits `sudo: a terminal is required` and never exports $HCIROOT).
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cmd_set_hciroot() {
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local alias="${1:-}" newroot="${2:-}"
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[ -n "$alias" ] || die "usage: set-hciroot <alias> <path> (empty path clears the pin)"
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ensure_layout
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local addr_port; addr_port=$(read_host_addr "$alias")
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[ -n "$addr_port" ] || die "no such alias: $alias (run 'add' first)"
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# Rewrite the row in place, setting/replacing column 4. awk handles rows that
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# still have only 3 columns (legacy) by assigning $4 directly. v0.8.17: also
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# backfill the column-5 (direct) header so the layout stays uniform; existing
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# column-5 values on data rows are preserved untouched (we only touch $4).
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local tmp; tmp=$(mktemp)
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awk -F'\t' -v OFS='\t' -v a="$alias" -v r="$newroot" '
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NR==1 { if (NF < 4) { $4="hciroot" } if (NF < 5) { $5="direct" } print; next }
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$1==a { $4=r; print; next }
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{ print }
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' "$SSH_HOSTS_FILE" > "$tmp" && mv "$tmp" "$SSH_HOSTS_FILE"
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chmod 600 "$SSH_HOSTS_FILE"
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if [ -n "$newroot" ]; then
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ok "pinned HCIROOT for $alias → $newroot"
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ok " (remote enumeration/exec for $alias will export HCIROOT explicitly and SKIP the login profile)"
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else
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ok "cleared HCIROOT pin for $alias (reverting to login-shell \$HCIROOT resolution)"
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fi
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}
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# cmd_set_direct ALIAS on|off — toggle (or clear) DIRECT mode for an alias.
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# Persisted as column 5 of the hosts TSV. v0.8.17.
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#
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# When ON, cmd_exec/cmd_discover/cmd_pull_smat run remote commands over a FRESH
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# per-command sshpass connection (forced password auth) instead of multiplexing
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# through a ControlMaster socket — the fix for hosts (e.g. qa → shdclvf01q) where
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# the master opens & authenticates fine but any multiplexed session dies with
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# "read from master failed: Connection reset by peer". The pinned HCIROOT (set
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# via set-hciroot) is still honoured — the remote command is shaped by the same
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# _remote_cmd_for path; only the dispatch (direct vs master socket) changes.
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cmd_set_direct() {
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local alias="${1:-}" mode="${2:-}"
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[ -n "$alias" ] || die "usage: set-direct <alias> on|off"
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# Trim surrounding whitespace so a trailing-space arg from the slash path
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# (e.g. `/ssh-set-direct qa on `) still normalizes cleanly to on|off.
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mode="${mode#"${mode%%[![:space:]]*}"}" # leading
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mode="${mode%"${mode##*[![:space:]]}"}" # trailing
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case "$mode" in
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on|ON|On) mode="on" ;;
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off|OFF|Off|'') mode="" ;; # empty/off → clear the flag (master mode)
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*) die "usage: set-direct <alias> on|off (got: $mode)" ;;
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esac
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ensure_layout
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local addr_port; addr_port=$(read_host_addr "$alias")
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[ -n "$addr_port" ] || die "no such alias: $alias (run 'add' first)"
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# Rewrite the row in place, setting/replacing column 5. awk backfills the
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# column-4 (hciroot) and column-5 (direct) headers for legacy <5-column files,
|
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# and pads a matching data row to 5 columns before assigning $5 so we never
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# clobber a pinned HCIROOT in column 4.
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local tmp; tmp=$(mktemp)
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awk -F'\t' -v OFS='\t' -v a="$alias" -v m="$mode" '
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NR==1 { if (NF < 4) { $4="hciroot" } if (NF < 5) { $5="direct" } print; next }
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$1==a { if (NF < 4) { $4="" } $5=m; print; next }
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{ print }
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' "$SSH_HOSTS_FILE" > "$tmp" && mv "$tmp" "$SSH_HOSTS_FILE"
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chmod 600 "$SSH_HOSTS_FILE"
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if [ "$mode" = "on" ]; then
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ok "DIRECT mode ON for $alias"
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ok " (all remote ops bypass the ControlMaster — fresh per-command sshpass, forced password auth)"
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ok " next: ssh-helper.sh setup $alias (validates the password; no master opened in direct mode)"
|
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else
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ok "DIRECT mode OFF for $alias (reverting to ControlMaster multiplexing)"
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fi
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}
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cmd_remove() {
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local alias="${1:-}"
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[ -n "$alias" ] || die "usage: remove <alias>"
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ensure_layout
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local tmp; tmp=$(mktemp)
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awk -F'\t' -v a="$alias" 'NR==1 || $1!=a' "$SSH_HOSTS_FILE" > "$tmp" && mv "$tmp" "$SSH_HOSTS_FILE"
|
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chmod 600 "$SSH_HOSTS_FILE"
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# Close + clean master socket and cred
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cmd_close "$alias" 2>/dev/null || true
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rm -f "$SSH_CREDS_DIR/$alias" "$SSH_SOCKETS_DIR/$alias.sock" 2>/dev/null
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ok "removed $alias (cred + socket cleared)"
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}
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|
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cmd_pass() {
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local alias="${1:-}"
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[ -n "$alias" ] || die "usage: pass <alias>"
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local addr_port; addr_port=$(read_host_addr "$alias")
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[ -n "$addr_port" ] || die "no such alias: $alias (run 'add' first)"
|
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ensure_layout
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printf 'Password for %s (input is hidden; press Enter when done): ' "$alias" >&2
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local pw=""
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_read_hidden pw
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echo "" >&2
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[ -n "$pw" ] || die "no password entered"
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umask 077
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# NO trailing newline — sshpass -f expects raw password as full file content
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printf '%s' "$pw" > "$SSH_CREDS_DIR/$alias"
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chmod 600 "$SSH_CREDS_DIR/$alias"
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ok "password saved to $SSH_CREDS_DIR/$alias (mode 0600). Next: ssh-helper.sh setup $alias"
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}
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cmd_setup() {
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local alias="${1:-}"
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[ -n "$alias" ] || die "usage: setup <alias>"
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local addr_port; addr_port=$(read_host_addr "$alias")
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[ -n "$addr_port" ] || die "no such alias: $alias"
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local addr port
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addr=$(printf '%s' "$addr_port" | cut -f1)
|
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port=$(printf '%s' "$addr_port" | cut -f2)
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ensure_layout
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|
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# v0.8.17: DIRECT mode — opening a ControlMaster is pointless (the box rejects
|
||
# multiplexing). Instead, VALIDATE that the stored password authenticates by
|
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# running one trivial direct command, then report ready. No master socket is
|
||
# created. This makes Bryan's flow:
|
||
# /ssh-pass <a> → /ssh-set-hciroot <a> <path> → /ssh-set-direct <a> on → /sites <a>
|
||
if _alias_is_direct "$alias"; then
|
||
local credfile="$SSH_CREDS_DIR/$alias"
|
||
[ -f "$credfile" ] || die "no password set for $alias — run 'pass $alias' first"
|
||
require_sshpass
|
||
ok "DIRECT mode for $alias ($addr:$port) — validating the stored password (no master in direct mode)..."
|
||
local errfile; errfile=$(mktemp 2>/dev/null || echo "/tmp/larry-ssh-direct-setup.err.$$")
|
||
# A trivial, side-effect-free probe. Forced password auth, host-key checked,
|
||
# no master. STDERR (banner/sudo) is captured for failure diagnosis only.
|
||
# v0.8.18: shared DIRECT options via _direct_ssh_opts (was an inline copy).
|
||
sshpass -f "$credfile" ssh \
|
||
$(_direct_ssh_opts) \
|
||
-p "$port" \
|
||
"$addr" 'true' 2>"$errfile"
|
||
local vrc=$?
|
||
if [ "$vrc" -eq 0 ]; then
|
||
rm -f "$errfile"
|
||
ok "✓ direct auth OK: $alias → $addr:$port (no master; ready for /sites $alias)"
|
||
return 0
|
||
fi
|
||
printf 'ssh-helper: direct validation FAILED for %s (rc=%d).\n' "$alias" "$vrc" >&2
|
||
local filtered; filtered=$(_filter_direct_stderr < "$errfile")
|
||
if [ -n "$filtered" ]; then
|
||
printf 'ssh-helper: remote stderr (benign banner/sudo lines stripped):\n' >&2
|
||
printf '%s\n' "$filtered" >&2
|
||
else
|
||
printf 'ssh-helper: no non-benign stderr — almost certainly the stored password is stale/rotated. Re-run: ssh-helper.sh pass %s\n' "$alias" >&2
|
||
fi
|
||
rm -f "$errfile"
|
||
return 1
|
||
fi
|
||
|
||
local sock="$SSH_SOCKETS_DIR/$alias.sock"
|
||
if [ -S "$sock" ] && ssh -S "$sock" -O check -p "$port" "$addr" 2>/dev/null; then
|
||
ok "master already open for $alias ($addr:$port)"
|
||
return 0
|
||
fi
|
||
local credfile="$SSH_CREDS_DIR/$alias"
|
||
[ -f "$credfile" ] || die "no password set for $alias — run 'pass $alias' first"
|
||
require_sshpass
|
||
ok "opening ssh master for $alias ($addr:$port) — ControlPersist=$SSH_CONTROL_PERSIST..."
|
||
|
||
# _try_master_open — one attempt with the stored credential. Returns 0 on a
|
||
# verified-open master; non-zero otherwise. Stderr from sshpass/ssh lands in
|
||
# the file named by $1 so the caller can classify it.
|
||
#
|
||
# v0.8.15 hardening (banner + rotating-password):
|
||
# • -o PreferredAuthentications=password -o PubkeyAuthentication=no forces the
|
||
# password method so sshpass feeds the password cleanly. Without this, on a
|
||
# box that prints a long pre-auth banner and would otherwise try pubkey
|
||
# first, ssh can consume the password slot on the wrong method and the only
|
||
# thing surfaced is the banner with NO "permission denied" — exactly the
|
||
# symptom seen on shdclvf01q.
|
||
# • -o NumberOfPasswordPrompts=1 so a stale password fails fast (one prompt)
|
||
# instead of hanging, which lets us re-prompt for the rotated one.
|
||
_try_master_open() {
|
||
local errfile="$1"
|
||
sshpass -f "$credfile" ssh \
|
||
-o "ControlMaster=yes" \
|
||
-o "ControlPath=$sock" \
|
||
-o "ControlPersist=$SSH_CONTROL_PERSIST" \
|
||
-o "StrictHostKeyChecking=accept-new" \
|
||
-o "PreferredAuthentications=password" \
|
||
-o "PubkeyAuthentication=no" \
|
||
-o "NumberOfPasswordPrompts=1" \
|
||
-o "ConnectTimeout=10" \
|
||
-p "$port" \
|
||
-N -f \
|
||
"$addr" 2>"$errfile"
|
||
local rc=$?
|
||
[ "$rc" -eq 0 ] && ssh -S "$sock" -O check -p "$port" "$addr" 2>/dev/null
|
||
}
|
||
|
||
# _looks_like_auth_failure ERRFILE — heuristic: did this fail on auth (vs.
|
||
# network/host-key)? sshpass exits 5 on auth failure, but the banner can mask
|
||
# the textual reason, so we also treat permission/password/auth keywords as
|
||
# auth failures. A rotated password is the prime suspect on this box.
|
||
_looks_like_auth_failure() {
|
||
local errfile="$1"
|
||
grep -qiE 'permission denied|authentication fail|incorrect password|too many authentication|password:' "$errfile" 2>/dev/null && return 0
|
||
# Empty-or-banner-only stderr after a password attempt → almost always the
|
||
# rotated/stale credential. Treat as auth failure so we re-prompt.
|
||
return 0
|
||
}
|
||
|
||
local errfile="/tmp/larry-ssh-setup.err"
|
||
: > "$errfile"
|
||
if _try_master_open "$errfile"; then
|
||
ok "✓ master open: $alias → $addr:$port (socket: $sock)"
|
||
rm -f "$errfile"
|
||
return 0
|
||
fi
|
||
|
||
# First attempt failed. Surface the REAL error (not just the banner) and, if it
|
||
# looks like an auth failure, re-prompt for a fresh password (12h rotation on
|
||
# this box) and retry ONCE. Never silently no-op.
|
||
printf 'ssh-helper: first master-open attempt failed for %s.\n' "$alias" >&2
|
||
if [ -s "$errfile" ]; then
|
||
printf 'ssh-helper: ssh/sshpass stderr (auth error, not just the banner):\n' >&2
|
||
grep -iE 'permission denied|authentication|password|denied|fatal|connection|timed out|refused|host key' "$errfile" >&2 2>/dev/null \
|
||
|| cat "$errfile" >&2 2>/dev/null
|
||
else
|
||
printf 'ssh-helper: (no stderr captured — the box likely printed only its pre-auth banner; the stored password is almost certainly stale)\n' >&2
|
||
fi
|
||
|
||
if _looks_like_auth_failure "$errfile" && [ -t 0 -o -e /dev/tty ]; then
|
||
printf 'ssh-helper: looks like the stored password is stale (this host rotates ~every 12h).\n' >&2
|
||
printf 'Enter a FRESH password for %s (input hidden; Enter to abort): ' "$alias" >&2
|
||
local pw=""
|
||
_read_hidden pw
|
||
echo "" >&2
|
||
if [ -n "$pw" ]; then
|
||
umask 077
|
||
printf '%s' "$pw" > "$credfile" # NO trailing newline (sshpass -f)
|
||
chmod 600 "$credfile"
|
||
ok "stored the fresh password — retrying master open..."
|
||
: > "$errfile"
|
||
if _try_master_open "$errfile"; then
|
||
ok "✓ master open: $alias → $addr:$port (socket: $sock)"
|
||
rm -f "$errfile"
|
||
return 0
|
||
fi
|
||
printf 'ssh-helper: retry with the fresh password ALSO failed. ssh/sshpass stderr:\n' >&2
|
||
cat "$errfile" >&2 2>/dev/null
|
||
else
|
||
printf 'ssh-helper: no password entered — aborting.\n' >&2
|
||
fi
|
||
fi
|
||
|
||
printf 'ssh-helper: master NOT open for %s. Next step: re-run `ssh-helper.sh setup %s` (or the /ssh-setup %s slash command) with a current password; if the host changed, re-check `ssh-helper.sh hosts`.\n' \
|
||
"$alias" "$alias" "$alias" >&2
|
||
rm -f "$errfile"
|
||
return 1
|
||
}
|
||
|
||
cmd_close() {
|
||
local alias="${1:-}"
|
||
[ -n "$alias" ] || die "usage: close <alias>"
|
||
local addr_port; addr_port=$(read_host_addr "$alias") || addr_port=""
|
||
local sock="$SSH_SOCKETS_DIR/$alias.sock"
|
||
if [ -S "$sock" ] && [ -n "$addr_port" ]; then
|
||
local addr port
|
||
addr=$(printf '%s' "$addr_port" | cut -f1)
|
||
port=$(printf '%s' "$addr_port" | cut -f2)
|
||
ssh -S "$sock" -O exit -p "$port" "$addr" 2>/dev/null || true
|
||
fi
|
||
rm -f "$sock"
|
||
ok "closed master for $alias"
|
||
}
|
||
|
||
cmd_status() {
|
||
ensure_layout
|
||
if [ -n "${1:-}" ]; then
|
||
local alias="$1"
|
||
local addr_port; addr_port=$(read_host_addr "$alias")
|
||
[ -n "$addr_port" ] || die "no such alias: $alias"
|
||
local addr port
|
||
addr=$(printf '%s' "$addr_port" | cut -f1)
|
||
port=$(printf '%s' "$addr_port" | cut -f2)
|
||
local sock="$SSH_SOCKETS_DIR/$alias.sock"
|
||
printf 'alias: %s\naddr: %s\nport: %s\ncred: %s\nsocket: %s\nstatus: ' \
|
||
"$alias" "$addr" "$port" \
|
||
"$([ -f "$SSH_CREDS_DIR/$alias" ] && echo present || echo missing)" \
|
||
"$sock"
|
||
if [ -S "$sock" ] && ssh -S "$sock" -O check -p "$port" "$addr" 2>/dev/null; then
|
||
echo "master OPEN"
|
||
else
|
||
echo "no master (run setup)"
|
||
fi
|
||
return 0
|
||
fi
|
||
cmd_hosts
|
||
}
|
||
|
||
# v0.8.13 (Cloverleaf login-shell fix): exec defaults to a LOGIN shell.
|
||
#
|
||
# Root cause of the "qa keeps asking me for $HCIROOT" friction: a plain
|
||
# ssh host 'cmd'
|
||
# runs a NON-interactive, NON-login shell. On a Cloverleaf host, $HCIROOT (and
|
||
# $HCISITE, the hci* binaries on PATH, etc.) are exported by the LOGIN profile
|
||
# (/etc/profile.d, the hci user's ~/.profile / ~/.bash_profile, the per-site
|
||
# `.profile`). A non-login shell never sources those, so $HCIROOT arrives empty
|
||
# and Larry used to give up and nag the user for a path. Wrapping the command in
|
||
# `bash -lc` forces a login shell, so the Cloverleaf environment populates
|
||
# exactly as it does for an interactive operator login. This is the version-
|
||
# agnostic, no-config fix — it works on any Cloverleaf host whose operator login
|
||
# sets up the environment (i.e. all of them).
|
||
#
|
||
# Escape hatch: prefix the command with the literal token NOLOGIN<space> (or set
|
||
# LARRY_SSH_NO_LOGIN=1) to run a bare non-login shell — for the rare host where
|
||
# the login profile is interactive-only and hangs a non-tty `bash -l`.
|
||
_build_login_cmd() {
|
||
# $1 = raw command string. Echoes the command to hand to ssh.
|
||
local raw="$1"
|
||
case "$raw" in
|
||
NOLOGIN\ *) printf '%s' "${raw#NOLOGIN }"; return ;;
|
||
esac
|
||
[ "${LARRY_SSH_NO_LOGIN:-0}" = "1" ] && { printf '%s' "$raw"; return; }
|
||
# Single-quote the payload for a robust `bash -lc '<payload>'`. Embedded
|
||
# single quotes become '\'' (close, escaped-quote, reopen) — POSIX-portable.
|
||
local esc; esc=$(printf '%s' "$raw" | sed "s/'/'\\\\''/g")
|
||
printf "bash -lc '%s'" "$esc"
|
||
}
|
||
|
||
# v0.8.15 (sudo-gated-profile fix): when an alias has a pinned HCIROOT, the
|
||
# remote command must NOT go through the login profile (`bash -lc`). On hosts
|
||
# whose login profile is sudo-gated, a non-interactive SSH session trips
|
||
# `sudo: a terminal is required`, the profile never finishes, and $HCIROOT comes
|
||
# back EMPTY. Instead we export HCIROOT explicitly and run a plain `sh -c` (no
|
||
# login profile, no tty needed). This is deterministic and version-agnostic.
|
||
#
|
||
# _shq STR → single-quote STR for safe embedding inside another '...' context.
|
||
_shq() { printf '%s' "$1" | sed "s/'/'\\\\''/g"; }
|
||
|
||
# _build_pinned_cmd HCIROOT RAW → a remote command string that exports HCIROOT
|
||
# explicitly (and HCISITEDIR-friendly callers can derive from it) then runs RAW
|
||
# under a NON-login `sh -c`. No `bash -lc`, so the sudo-gated profile is skipped.
|
||
_build_pinned_cmd() {
|
||
local root="$1" raw="$2"
|
||
local esc; esc=$(_shq "$raw")
|
||
printf "sh -c 'HCIROOT=%s; export HCIROOT; %s'" "$(_shq "$root")" "$esc"
|
||
}
|
||
|
||
# _remote_cmd_for ALIAS RAW → echo the exact command string to hand to ssh.
|
||
# If ALIAS has a pinned HCIROOT → pinned (explicit-export, no login profile).
|
||
# Else → the existing login-shell wrapper (_build_login_cmd). Single chokepoint
|
||
# so cmd_exec/cmd_discover/cmd_pull_smat all honour the pin identically.
|
||
_remote_cmd_for() {
|
||
local alias="$1" raw="$2"
|
||
local pin; pin=$(read_host_hciroot "$alias")
|
||
if [ -n "$pin" ]; then
|
||
_build_pinned_cmd "$pin" "$raw"
|
||
else
|
||
_build_login_cmd "$raw"
|
||
fi
|
||
}
|
||
|
||
# ── v0.8.17: DIRECT (no-multiplex) dispatch ──────────────────────────────────
|
||
#
|
||
# Some Cloverleaf hosts reject SSH ControlMaster session multiplexing: the master
|
||
# opens and authenticates, but every session multiplexed over it dies with
|
||
# "read from master failed: Connection reset by peer", then ssh falls back to a
|
||
# fresh connection that fails auth. Confirmed live on qa (bryjohnx@lhsixfqa →
|
||
# shdclvf01q, cis2025.01). The fix is to run each remote command as its OWN
|
||
# fresh ssh connection with forced password auth (sshpass -f <credfile>) — NO
|
||
# master socket. This is legitimate password auth, NOT a traffic bypass: no
|
||
# proxy, no tunnel, no masking, and host-key checking stays on (accept-new).
|
||
#
|
||
# _DIRECT_CONNECT_TIMEOUT — seconds for ssh ConnectTimeout (env-overridable).
|
||
_DIRECT_CONNECT_TIMEOUT="${LARRY_SSH_DIRECT_TIMEOUT:-10}"
|
||
|
||
# _direct_ssh_opts → emit the shared ssh/scp `-o` option tokens for every DIRECT
|
||
# (no-ControlMaster) transport, one token per word, on STDOUT. v0.8.18: extracted
|
||
# so the security posture lives in ONE place and a change can't drift across the
|
||
# three call sites (cmd_setup probe, _run_direct, _direct_scp). The five
|
||
# security-critical flags are:
|
||
# PreferredAuthentications=password — force the password method so sshpass
|
||
# feeds the password cleanly past a banner
|
||
# PubkeyAuthentication=no — never silently fall back to a key
|
||
# StrictHostKeyChecking=accept-new — host-key checking STAYS ON (TOFU). This
|
||
# is the no-traffic-bypass guarantee: we
|
||
# never disable host verification.
|
||
# ControlMaster=no / ControlPath=none — never multiplex (the box rejects it)
|
||
# Plus two shared connection knobs identical across all three callers:
|
||
# NumberOfPasswordPrompts=1 — a stale password fails fast (one prompt)
|
||
# ConnectTimeout=$_DIRECT_CONNECT_TIMEOUT
|
||
# ssh `-o` ordering is immaterial (no conflicting duplicate keys), so emitting
|
||
# these as one contiguous block is byte-equivalent in BEHAVIOR to the prior
|
||
# inline copies. Callers splat the words unquoted: `ssh $(_direct_ssh_opts) ...`.
|
||
# Every token here is a single shell word (no spaces inside any -o value), so the
|
||
# unquoted expansion is safe.
|
||
_direct_ssh_opts() {
|
||
printf '%s\n' \
|
||
-o "PreferredAuthentications=password" \
|
||
-o "PubkeyAuthentication=no" \
|
||
-o "NumberOfPasswordPrompts=1" \
|
||
-o "StrictHostKeyChecking=accept-new" \
|
||
-o "ControlMaster=no" \
|
||
-o "ControlPath=none" \
|
||
-o "ConnectTimeout=$_DIRECT_CONNECT_TIMEOUT"
|
||
}
|
||
|
||
# _direct_creds ALIAS → echoes the credfile path (the file /ssh-pass writes),
|
||
# or empty (and warns) if absent. Same file the ControlMaster path uses.
|
||
_direct_creds() {
|
||
local alias="$1"
|
||
local credfile="$SSH_CREDS_DIR/$alias"
|
||
[ -f "$credfile" ] && { printf '%s' "$credfile"; return 0; }
|
||
printf ''
|
||
return 1
|
||
}
|
||
|
||
# _filter_direct_stderr — strip known-benign noise from a direct session's
|
||
# STDERR so the parsed STDOUT result is presented clean. The qa login profile
|
||
# emits a pre-auth banner ("Unauthorized access…/monitored", "WARNING", etc.)
|
||
# AND `sudo: a terminal is required` / `sudo: a password is required` /
|
||
# `sudo: no tty present` on STDERR for non-interactive sessions. Those are
|
||
# expected and harmless for our read-only enumeration — drop them. ANYTHING
|
||
# ELSE that remains is a real signal and is surfaced by the caller, but ONLY on
|
||
# an actual non-zero command failure (see _run_direct). Reads stderr on stdin;
|
||
# echoes the filtered remainder. The patterns are intentionally narrow so we
|
||
# never swallow a genuine error message.
|
||
_filter_direct_stderr() {
|
||
grep -ivE \
|
||
'unauthorized (access|use)|access is monitored|monitored and recorded|this (system|computer|is a) .*(private|restricted|government|corporate)|by (logging in|accessing|using) .*(you )?(consent|agree)|all activ(ity|ities) .*(may be|are) (monitored|logged|recorded)|disconnect immediately|^[[:space:]]*\*+[[:space:]]*$|^[[:space:]]*WARNING[[:space:]]*[:!]?|sudo: a terminal is required|sudo: a password is required|sudo: no tty present|sudo: sorry, you must have a tty' \
|
||
2>/dev/null || true
|
||
}
|
||
|
||
# _run_direct ALIAS REMOTE_CMD → run REMOTE_CMD on ALIAS over a FRESH per-command
|
||
# sshpass connection (no ControlMaster). REMOTE_CMD must already be shaped by
|
||
# _remote_cmd_for (so the HCIROOT pin / login-shell wrapper is honoured). STDOUT
|
||
# is passed through verbatim (the parsed-clean result). STDERR is captured,
|
||
# filtered for the known-benign banner+sudo lines, and surfaced ONLY when the
|
||
# remote command exits non-zero. Returns the remote command's exit code.
|
||
_run_direct() {
|
||
local alias="$1" remote_cmd="$2"
|
||
require_sshpass
|
||
local addr_port; addr_port=$(read_host_addr "$alias")
|
||
[ -n "$addr_port" ] || die "no such alias: $alias"
|
||
local addr port
|
||
addr=$(printf '%s' "$addr_port" | cut -f1)
|
||
port=$(printf '%s' "$addr_port" | cut -f2)
|
||
local credfile; credfile=$(_direct_creds "$alias") \
|
||
|| die "no password set for $alias — run 'pass $alias' first (direct mode needs the stored credential per command)"
|
||
|
||
local errfile; errfile=$(mktemp 2>/dev/null || echo "/tmp/larry-ssh-direct.err.$$")
|
||
# NO ControlMaster/ControlPath. Forced password method so sshpass feeds the
|
||
# password cleanly past any pre-auth banner (same rationale as the master
|
||
# path's v0.8.15 PreferredAuthentications=password hardening). BatchMode is
|
||
# NOT set — sshpass supplies the password non-interactively via the askpass
|
||
# file descriptor; BatchMode would suppress that path on some builds.
|
||
# v0.8.18: shared DIRECT options via _direct_ssh_opts (was an inline copy).
|
||
sshpass -f "$credfile" ssh \
|
||
$(_direct_ssh_opts) \
|
||
-p "$port" \
|
||
"$addr" "$remote_cmd" 2>"$errfile"
|
||
local rc=$?
|
||
|
||
# On a real failure, surface the FILTERED stderr (banner + sudo noise removed)
|
||
# so the operator sees the genuine reason without the boilerplate. On success,
|
||
# the benign noise is simply dropped — stdout is already the clean result.
|
||
if [ "$rc" -ne 0 ]; then
|
||
local filtered; filtered=$(_filter_direct_stderr < "$errfile")
|
||
if [ -n "$filtered" ]; then
|
||
printf 'ssh-helper: direct command failed for %s (rc=%d). Remote stderr (benign banner/sudo lines stripped):\n' "$alias" "$rc" >&2
|
||
printf '%s\n' "$filtered" >&2
|
||
else
|
||
printf 'ssh-helper: direct command failed for %s (rc=%d) with no non-benign stderr — likely an auth failure (stale/rotated password?) or a connection reset. Re-check: ssh-helper.sh setup %s\n' "$alias" "$rc" "$alias" >&2
|
||
fi
|
||
fi
|
||
rm -f "$errfile"
|
||
return "$rc"
|
||
}
|
||
|
||
# _direct_scp ALIAS SRC DST → scp SRC→DST over a FRESH sshpass connection (no
|
||
# ControlMaster), forced password auth, host-key checked. Either SRC or DST is a
|
||
# remote spec of the form "<addr>:<path>" supplied by the caller (cmd_pull builds
|
||
# it). Returns scp's exit code. STDERR (incl. banner/sudo noise) is filtered the
|
||
# same way as _run_direct and surfaced only on failure. v0.8.17.
|
||
_direct_scp() {
|
||
local alias="$1" src="$2" dst="$3"
|
||
require_sshpass
|
||
local addr_port; addr_port=$(read_host_addr "$alias")
|
||
[ -n "$addr_port" ] || die "no such alias: $alias"
|
||
local port; port=$(printf '%s' "$addr_port" | cut -f2)
|
||
local credfile; credfile=$(_direct_creds "$alias") \
|
||
|| die "no password set for $alias — run 'pass $alias' first"
|
||
local errfile; errfile=$(mktemp 2>/dev/null || echo "/tmp/larry-scp-direct.err.$$")
|
||
# v0.8.18: shared DIRECT options via _direct_ssh_opts (was an inline copy).
|
||
# scp reads the same ssh-style -o options; only the port flag differs (-P).
|
||
sshpass -f "$credfile" scp -q \
|
||
$(_direct_ssh_opts) \
|
||
-P "$port" \
|
||
"$src" "$dst" 2>"$errfile"
|
||
local rc=$?
|
||
if [ "$rc" -ne 0 ]; then
|
||
local filtered; filtered=$(_filter_direct_stderr < "$errfile")
|
||
printf 'ssh-helper: direct scp failed for %s (rc=%d):\n' "$alias" "$rc" >&2
|
||
[ -n "$filtered" ] && printf '%s\n' "$filtered" >&2
|
||
fi
|
||
rm -f "$errfile"
|
||
return "$rc"
|
||
}
|
||
|
||
# _dispatch_remote ALIAS RAW_CMD → run RAW_CMD on ALIAS, choosing the transport:
|
||
# DIRECT mode (column 5 == on) → fresh per-command sshpass (_run_direct)
|
||
# else → existing ControlMaster multiplex
|
||
# In BOTH cases the remote command is shaped identically by _remote_cmd_for, so
|
||
# the HCIROOT pin and login-shell semantics are unchanged across transports.
|
||
# Requires (master mode only) that the master is open — the master-mode branch
|
||
# preserves the prior die-on-closed-master behaviour exactly.
|
||
_dispatch_remote() {
|
||
local alias="$1" raw="$2"
|
||
local shaped; shaped=$(_remote_cmd_for "$alias" "$raw")
|
||
if _alias_is_direct "$alias"; then
|
||
_run_direct "$alias" "$shaped"
|
||
return $?
|
||
fi
|
||
# ── ControlMaster path (unchanged for non-direct aliases) ────────────────
|
||
local addr_port; addr_port=$(read_host_addr "$alias")
|
||
[ -n "$addr_port" ] || die "no such alias: $alias"
|
||
local addr port
|
||
addr=$(printf '%s' "$addr_port" | cut -f1)
|
||
port=$(printf '%s' "$addr_port" | cut -f2)
|
||
local sock="$SSH_SOCKETS_DIR/$alias.sock"
|
||
if [ ! -S "$sock" ] || ! ssh -S "$sock" -O check -p "$port" "$addr" 2>/dev/null; then
|
||
die "no open master for $alias — run 'setup $alias' first"
|
||
fi
|
||
ssh -S "$sock" -p "$port" -o BatchMode=yes "$addr" "$shaped"
|
||
}
|
||
|
||
cmd_exec() {
|
||
local alias="${1:-}"
|
||
[ -n "$alias" ] || die "usage: exec <alias> <command...>"
|
||
shift
|
||
local cmd="$*"
|
||
[ -n "$cmd" ] || die "no command given"
|
||
local addr_port; addr_port=$(read_host_addr "$alias")
|
||
[ -n "$addr_port" ] || die "no such alias: $alias"
|
||
# v0.8.17: transport selection is centralised in _dispatch_remote.
|
||
# • DIRECT mode → a fresh per-command sshpass connection (no master), with
|
||
# benign banner/sudo stderr stripped and real errors surfaced on failure.
|
||
# • else → the existing ControlMaster multiplex (no password needed).
|
||
# In both cases the remote command is shaped identically: a pinned HCIROOT is
|
||
# exported explicitly + login profile skipped (v0.8.15); otherwise a login
|
||
# shell populates $HCIROOT et al. (see _remote_cmd_for / _build_login_cmd).
|
||
_dispatch_remote "$alias" "$cmd"
|
||
}
|
||
|
||
# cmd_discover ALIAS — proactively detect the remote Cloverleaf environment.
|
||
# Resolves $HCIROOT in a LOGIN shell, then enumerates sites two ways:
|
||
# 1. hcisitelist (the Cloverleaf-shipped site lister) if it's on the login PATH
|
||
# 2. NetConfig walk under $HCIROOT (version-agnostic ground truth — the same
|
||
# "a site is a dir with a NetConfig" rule each-site.sh uses)
|
||
# Emits TSV to stdout the tool layer can parse deterministically:
|
||
# HCIROOT<TAB><path> (or HCIROOT<TAB> if unresolved)
|
||
# SITE<TAB><name> (zero or more)
|
||
# Never prompts; on failure it emits what it could resolve + a NOTE line.
|
||
cmd_discover() {
|
||
local alias="${1:-}"
|
||
[ -n "$alias" ] || die "usage: discover <alias>"
|
||
local addr_port; addr_port=$(read_host_addr "$alias")
|
||
[ -n "$addr_port" ] || die "no such alias: $alias"
|
||
local addr port
|
||
addr=$(printf '%s' "$addr_port" | cut -f1)
|
||
port=$(printf '%s' "$addr_port" | cut -f2)
|
||
# v0.8.17: in DIRECT mode there is no master to check — _dispatch_remote runs a
|
||
# fresh per-command sshpass connection below. Only validate an open master for
|
||
# the (unchanged) multiplex path.
|
||
if ! _alias_is_direct "$alias"; then
|
||
local sock="$SSH_SOCKETS_DIR/$alias.sock"
|
||
if [ ! -S "$sock" ] || ! ssh -S "$sock" -O check -p "$port" "$addr" 2>/dev/null; then
|
||
die "no open master for $alias — run 'setup $alias' first"
|
||
fi
|
||
fi
|
||
|
||
# A single remote script. It:
|
||
# - prints HCIROOT\t$HCIROOT
|
||
# - PRIMARY enumeration = the NetConfig walk under $HCIROOT (depth ≤2),
|
||
# IDENTICAL to lib/each-site.sh: find NetConfig files → dirname → basename
|
||
# → sort -u. This is the version-agnostic ground truth and works on a box
|
||
# with NO `hcisitelist` (v0.8.15 portability fix — confirmed: shdclvf01q
|
||
# has no hcisitelist).
|
||
# - `hcisitelist` is used ONLY if it is actually present AND the walk found
|
||
# nothing (belt-and-suspenders), never as the dependency.
|
||
# Kept POSIX-sh so it runs under whatever /bin/sh spawns it.
|
||
#
|
||
# NOTE on environment: when the alias has a pinned HCIROOT, _remote_cmd_for
|
||
# exports HCIROOT explicitly and runs this under a NON-login `sh -c` (skips the
|
||
# sudo-gated login profile). Otherwise it runs under `bash -lc` so the login
|
||
# profile populates $HCIROOT. Either way the script below only reads
|
||
# ${HCIROOT:-}, so it is agnostic to which path delivered it.
|
||
# v0.8.15 (list-sites exclusion): drop non-real entries from the enumeration so
|
||
# /sites shows only operator-meaningful sites. Two filters, applied at the walk
|
||
# source (so REMOTE pinned, REMOTE login-shell, and LOCAL all behave the same):
|
||
# 1. SITES_EXCLUDE — static scaffolding/special dirs (helloworld, siteProto,
|
||
# master). A documented, tunable env var: Bryan can override at call time
|
||
# via `SITES_EXCLUDE='...' discover <alias>` without a config UI.
|
||
# 2. Host-name match — any site dir whose name == the remote `hostname -s` or
|
||
# full `hostname` (a dir just named after the box, e.g. shdclvf01q). The
|
||
# remote hostname is the primary signal; we ALSO pass the alias's configured
|
||
# SSH host as a secondary candidate (qa's alias host is lhsixfqa) so a dir
|
||
# matching that is dropped too.
|
||
# NOT silent: every dropped name is reported on an EXCLUDED note so the tool
|
||
# layer surfaces it. The real-site list/count stays the headline.
|
||
local sites_exclude="${SITES_EXCLUDE:-helloworld siteProto master}"
|
||
# bare host from the alias's user@host (strip optional user@); '-' if none.
|
||
local alias_host="${addr#*@}"; [ -n "$alias_host" ] || alias_host="-"
|
||
local remote='
|
||
SITES_EXCLUDE='\'"$(_shq "$sites_exclude")"\'';
|
||
ALIAS_HOST='\'"$(_shq "$alias_host")"\'';
|
||
printf "HCIROOT\t%s\n" "${HCIROOT:-}";
|
||
if [ -z "${HCIROOT:-}" ]; then
|
||
printf "NOTE\tHCIROOT is empty. If this host has a sudo-gated/non-interactive login profile, pin it: ssh-helper.sh set-hciroot <alias> <path>\n";
|
||
exit 0;
|
||
fi;
|
||
if [ ! -d "${HCIROOT}" ]; then
|
||
printf "NOTE\tHCIROOT=%s is not a directory on the remote — check the pinned path\n" "${HCIROOT}";
|
||
exit 0;
|
||
fi;
|
||
sites=$(find "$HCIROOT" -mindepth 1 -maxdepth 2 -name NetConfig -type f 2>/dev/null \
|
||
| while IFS= read -r nc; do d=$(dirname "$nc"); basename "$d"; done \
|
||
| sort -u);
|
||
if [ -z "$sites" ] && command -v hcisitelist >/dev/null 2>&1; then
|
||
printf "NOTE\tNetConfig walk found no sites; falling back to hcisitelist\n";
|
||
sites=$(hcisitelist 2>/dev/null | tr " " "\n" | grep -v "^$" | sort -u);
|
||
fi;
|
||
if [ -z "$sites" ]; then
|
||
printf "NOTE\tno sites with a NetConfig found under %s\n" "$HCIROOT";
|
||
exit 0;
|
||
fi;
|
||
HN_S=$(hostname -s 2>/dev/null || true);
|
||
HN_F=$(hostname 2>/dev/null || true);
|
||
kept=""; dropped="";
|
||
for s in $sites; do
|
||
[ -n "$s" ] || continue;
|
||
drop="";
|
||
for x in $SITES_EXCLUDE; do [ "$s" = "$x" ] && drop=1 && break; done;
|
||
[ -z "$drop" ] && [ -n "$HN_S" ] && [ "$s" = "$HN_S" ] && drop=1;
|
||
[ -z "$drop" ] && [ -n "$HN_F" ] && [ "$s" = "$HN_F" ] && drop=1;
|
||
[ -z "$drop" ] && [ "$ALIAS_HOST" != "-" ] && [ "$s" = "$ALIAS_HOST" ] && drop=1;
|
||
if [ -n "$drop" ]; then dropped="$dropped $s"; else kept="$kept
|
||
$s"; fi;
|
||
done;
|
||
dropped=$(printf "%s" "$dropped" | sed "s/^ *//");
|
||
[ -n "$dropped" ] && printf "EXCLUDED\t%s\n" "$dropped";
|
||
printf "%s\n" "$kept" | while IFS= read -r s; do [ -n "$s" ] && printf "SITE\t%s\n" "$s"; done'
|
||
# v0.8.17: dispatch over DIRECT sshpass or the ControlMaster, per the alias's
|
||
# flag. The TSV that the tool layer parses is on STDOUT and stays clean; the
|
||
# qa banner/sudo noise on STDERR is stripped by _run_direct's filter (direct
|
||
# mode) and surfaced only on a real non-zero failure.
|
||
_dispatch_remote "$alias" "$remote"
|
||
}
|
||
|
||
# ── v0.6.8: scp helpers that multiplex via the existing ControlMaster ────────
|
||
# We use ssh's ControlPath/ControlMaster=no for scp (scp reads ssh-style options
|
||
# via -o), so the file transfer rides the open master and needs no second auth.
|
||
# Resolve ADDR/PORT/SOCK for an alias; die if master not open. Sets globals:
|
||
# _RH_ADDR _RH_PORT _RH_SOCK
|
||
_resolve_open_master() {
|
||
local alias="$1"
|
||
local addr_port; addr_port=$(read_host_addr "$alias")
|
||
[ -n "$addr_port" ] || die "no such alias: $alias"
|
||
_RH_ADDR=$(printf '%s' "$addr_port" | cut -f1)
|
||
_RH_PORT=$(printf '%s' "$addr_port" | cut -f2)
|
||
_RH_SOCK="$SSH_SOCKETS_DIR/$alias.sock"
|
||
if [ ! -S "$_RH_SOCK" ] || ! ssh -S "$_RH_SOCK" -O check -p "$_RH_PORT" "$_RH_ADDR" 2>/dev/null; then
|
||
die "no open master for $alias — open it with /ssh-setup $alias first"
|
||
fi
|
||
}
|
||
|
||
# Deterministic local cache path for ssh_pull.
|
||
# /tmp/larry-pulls/<alias>.<basename>.<short-hash-of-remote-path>
|
||
_pull_cache_path() {
|
||
local alias="$1" remote="$2"
|
||
local base; base=$(basename -- "$remote" 2>/dev/null)
|
||
[ -z "$base" ] && base="file"
|
||
# 8-char hex hash of full remote path. We try the most common hashers in
|
||
# turn; on a stripped box without any, fall back to a length+checksum proxy
|
||
# so the path is still deterministic per <alias,remote_path>.
|
||
local hash=""
|
||
if command -v shasum >/dev/null 2>&1; then
|
||
hash=$(printf '%s' "$remote" | shasum -a 1 2>/dev/null | cut -c1-8)
|
||
elif command -v sha1sum >/dev/null 2>&1; then
|
||
hash=$(printf '%s' "$remote" | sha1sum 2>/dev/null | cut -c1-8)
|
||
elif command -v md5sum >/dev/null 2>&1; then
|
||
hash=$(printf '%s' "$remote" | md5sum 2>/dev/null | cut -c1-8)
|
||
else
|
||
hash=$(printf '%s' "$remote" | cksum 2>/dev/null | awk '{printf "%08x", $1}' | cut -c1-8)
|
||
fi
|
||
[ -z "$hash" ] && hash="00000000"
|
||
mkdir -p /tmp/larry-pulls 2>/dev/null
|
||
printf '/tmp/larry-pulls/%s.%s.%s' "$alias" "$base" "$hash"
|
||
}
|
||
|
||
cmd_pull() {
|
||
local alias="${1:-}" remote="${2:-}" local_path="${3:-}"
|
||
[ -n "$alias" ] && [ -n "$remote" ] || die "usage: pull <alias> <remote_path> [local_path]"
|
||
|
||
# v0.8.17: DIRECT mode — no ControlMaster. The remote-size probe rides a fresh
|
||
# per-command sshpass connection (_dispatch_remote → _run_direct), and the
|
||
# transfer uses _direct_scp (also fresh sshpass). Everything else (cache path,
|
||
# size verification, the clean final-line local path) is identical.
|
||
if _alias_is_direct "$alias"; then
|
||
local addr_port; addr_port=$(read_host_addr "$alias")
|
||
[ -n "$addr_port" ] || die "no such alias: $alias"
|
||
local _d_addr; _d_addr=$(printf '%s' "$addr_port" | cut -f1)
|
||
[ -z "$local_path" ] && local_path=$(_pull_cache_path "$alias" "$remote")
|
||
mkdir -p "$(dirname "$local_path")" 2>/dev/null
|
||
local remote_size
|
||
remote_size=$(coerce_int "$(_dispatch_remote "$alias" "wc -c < $(printf '%q' "$remote") 2>/dev/null" 2>/dev/null)" "")
|
||
if [ -z "$remote_size" ] || ! [[ "$remote_size" =~ ^[0-9]+$ ]]; then
|
||
die "remote file not found or not readable: $remote"
|
||
fi
|
||
if _direct_scp "$alias" "$_d_addr:$remote" "$local_path"; then
|
||
local got; got=$(coerce_int "$(wc -c < "$local_path" 2>/dev/null)" 0)
|
||
if [ "$got" != "$remote_size" ]; then
|
||
die "partial transfer: remote=$remote_size bytes, local=$got bytes ($local_path)"
|
||
fi
|
||
ok "pulled $alias:$remote → $local_path ($got bytes, direct)"
|
||
printf '%s\n' "$local_path"
|
||
return 0
|
||
fi
|
||
return 1
|
||
fi
|
||
|
||
_resolve_open_master "$alias"
|
||
[ -z "$local_path" ] && local_path=$(_pull_cache_path "$alias" "$remote")
|
||
mkdir -p "$(dirname "$local_path")" 2>/dev/null
|
||
|
||
# Get remote file size up-front for a partial-transfer sanity check.
|
||
# v0.7.5: coerce_int on wc output — strips CR + non-digits at the source.
|
||
local remote_size=""
|
||
remote_size=$(coerce_int "$(ssh -S "$_RH_SOCK" -p "$_RH_PORT" -o BatchMode=yes "$_RH_ADDR" \
|
||
"wc -c < $(printf '%q' "$remote") 2>/dev/null" 2>/dev/null)" "")
|
||
if [ -z "$remote_size" ] || ! [[ "$remote_size" =~ ^[0-9]+$ ]]; then
|
||
die "remote file not found or not readable: $remote"
|
||
fi
|
||
|
||
# scp via the existing master: -o ControlPath=... -o ControlMaster=no
|
||
local scp_err; scp_err=$(mktemp 2>/dev/null || echo "/tmp/larry-scp.err.$$")
|
||
if scp -q \
|
||
-o "ControlPath=$_RH_SOCK" \
|
||
-o "ControlMaster=no" \
|
||
-o "BatchMode=yes" \
|
||
-P "$_RH_PORT" \
|
||
"$_RH_ADDR:$remote" "$local_path" 2>"$scp_err"; then
|
||
# v0.7.5: coerce_int on wc output — Cygwin wc.exe CR-taint defense.
|
||
local got; got=$(coerce_int "$(wc -c < "$local_path" 2>/dev/null)" 0)
|
||
if [ "$got" != "$remote_size" ]; then
|
||
rm -f "$scp_err"
|
||
die "partial transfer: remote=$remote_size bytes, local=$got bytes ($local_path)"
|
||
fi
|
||
rm -f "$scp_err"
|
||
ok "pulled $alias:$remote → $local_path ($got bytes)"
|
||
# Print only the local path on the final line so callers (tool layer) can
|
||
# capture it deterministically with `tail -1` or similar.
|
||
printf '%s\n' "$local_path"
|
||
return 0
|
||
fi
|
||
local rc=$?
|
||
printf 'ssh-helper: scp pull failed (rc=%d):\n' "$rc" >&2
|
||
cat "$scp_err" >&2 2>/dev/null
|
||
rm -f "$scp_err"
|
||
return 1
|
||
}
|
||
|
||
cmd_push() {
|
||
local alias="${1:-}" local_path="${2:-}" remote="${3:-}"
|
||
[ -n "$alias" ] && [ -n "$local_path" ] && [ -n "$remote" ] \
|
||
|| die "usage: push <alias> <local_path> <remote_path>"
|
||
[ -f "$local_path" ] || die "local file not found: $local_path"
|
||
|
||
# v0.8.18: DIRECT mode — symmetric with cmd_pull's direct branch. No
|
||
# ControlMaster (the host rejects multiplexing); the transfer uses _direct_scp
|
||
# (fresh per-command sshpass), and the post-transfer size verification rides a
|
||
# fresh per-command connection via _dispatch_remote → _run_direct. Without this
|
||
# branch, ssh_push (an exposed tool, used by nc_regression phase 4 to push
|
||
# cross-env input bundles) died "no open master" for any DIRECT-mode alias.
|
||
if _alias_is_direct "$alias"; then
|
||
local addr_port; addr_port=$(read_host_addr "$alias")
|
||
[ -n "$addr_port" ] || die "no such alias: $alias"
|
||
local _d_addr; _d_addr=$(printf '%s' "$addr_port" | cut -f1)
|
||
local local_size; local_size=$(coerce_int "$(wc -c < "$local_path" 2>/dev/null)" 0)
|
||
if _direct_scp "$alias" "$local_path" "$_d_addr:$remote"; then
|
||
local got
|
||
got=$(coerce_int "$(_dispatch_remote "$alias" "wc -c < $(printf '%q' "$remote") 2>/dev/null" 2>/dev/null)" 0)
|
||
if [ "$got" != "$local_size" ]; then
|
||
die "partial transfer: local=$local_size bytes, remote=$got bytes ($alias:$remote)"
|
||
fi
|
||
ok "pushed $local_path → $alias:$remote ($got bytes, direct)"
|
||
return 0
|
||
fi
|
||
return 1
|
||
fi
|
||
|
||
_resolve_open_master "$alias"
|
||
|
||
# v0.7.5: coerce_int on wc output — Cygwin wc.exe CR-taint defense.
|
||
local local_size; local_size=$(coerce_int "$(wc -c < "$local_path" 2>/dev/null)" 0)
|
||
local scp_err; scp_err=$(mktemp 2>/dev/null || echo "/tmp/larry-scp.err.$$")
|
||
if scp -q \
|
||
-o "ControlPath=$_RH_SOCK" \
|
||
-o "ControlMaster=no" \
|
||
-o "BatchMode=yes" \
|
||
-P "$_RH_PORT" \
|
||
"$local_path" "$_RH_ADDR:$remote" 2>"$scp_err"; then
|
||
# Validate via remote wc -c.
|
||
local got
|
||
# v0.7.5: coerce_int on wc output (Cygwin wc.exe CR-taint defense).
|
||
got=$(coerce_int "$(ssh -S "$_RH_SOCK" -p "$_RH_PORT" -o BatchMode=yes "$_RH_ADDR" \
|
||
"wc -c < $(printf '%q' "$remote") 2>/dev/null" 2>/dev/null)" 0)
|
||
if [ "$got" != "$local_size" ]; then
|
||
rm -f "$scp_err"
|
||
die "partial transfer: local=$local_size bytes, remote=$got bytes ($alias:$remote)"
|
||
fi
|
||
rm -f "$scp_err"
|
||
ok "pushed $local_path → $alias:$remote ($got bytes)"
|
||
return 0
|
||
fi
|
||
local rc=$?
|
||
printf 'ssh-helper: scp push failed (rc=%d):\n' "$rc" >&2
|
||
cat "$scp_err" >&2 2>/dev/null
|
||
rm -f "$scp_err"
|
||
return 1
|
||
}
|
||
|
||
# pull-smat: smart pull for a Cloverleaf thread's .smatdb file.
|
||
# Two modes:
|
||
# Full pull: pull-smat <alias> <site> <thread>
|
||
# Locates $HCISITEDIR/exec/processes/*/<thread>.smatdb on the
|
||
# remote via find, then scp's the entire .smatdb file.
|
||
# Sampled: pull-smat <alias> <site> <thread> <days_back>
|
||
# Runs sqlite3 server-side, extracts up to 1000 most-recent
|
||
# messages from the last <days_back> days, encodes each
|
||
# MessageContent BLOB as base64, returns TSV:
|
||
# unix_ts<TAB>direction<TAB>type<TAB>source<TAB>dest<TAB>message_blob_b64
|
||
# The schema (table=smat_msgs, columns Time/Type/SourceConn/
|
||
# DestConn/MessageContent) is the same one nc-msgs.sh uses.
|
||
cmd_pull_smat() {
|
||
local alias="${1:-}" site="${2:-}" thread="${3:-}" days_back="${4:-}"
|
||
[ -n "$alias" ] && [ -n "$site" ] && [ -n "$thread" ] \
|
||
|| die "usage: pull-smat <alias> <site> <thread> [days_back]"
|
||
# v0.8.17: in DIRECT mode every remote op is a fresh per-command sshpass
|
||
# connection — there is no master to resolve. Only require an open master for
|
||
# the (unchanged) multiplex path; both the find/sample command dispatches and
|
||
# the full-file scp below pick the transport via the direct flag.
|
||
if ! _alias_is_direct "$alias"; then
|
||
_resolve_open_master "$alias"
|
||
fi
|
||
|
||
# Discover the remote .smatdb path. $HCISITEDIR/$HCIROOT are resolved by the
|
||
# LOGIN shell (see _build_login_cmd) — the v0.8.13 fix — so we no longer
|
||
# depend on a non-login rc happening to export them. SITEDIR falls back to
|
||
# <HCIROOT>/<site> if HCISITEDIR isn't set for that site. The find runs
|
||
# remotely to avoid hard-coding process directory names.
|
||
local find_cmd
|
||
find_cmd='set -e; SDIR="${HCISITEDIR:-${HCIROOT:-}/'"$site"'}"; '
|
||
find_cmd+='[ -d "$SDIR" ] || { echo "ERROR: sitedir not found on remote: $SDIR" >&2; exit 2; }; '
|
||
find_cmd+='F=$(find "$SDIR/exec/processes" -maxdepth 2 -type f -name "'"$thread"'.smatdb" 2>/dev/null | head -1); '
|
||
find_cmd+='[ -n "$F" ] || F=$(find "$SDIR" -type f -name "'"$thread"'.smatdb" 2>/dev/null | head -1); '
|
||
find_cmd+='[ -n "$F" ] || { echo "ERROR: no smatdb found for thread '"$thread"' under $SDIR" >&2; exit 3; }; '
|
||
# v0.8.13 M1 hardening (Vera Minor #1): emit the resolved path behind an
|
||
# unambiguous sentinel prefix instead of relying on it being the last stdout
|
||
# line. A login shell (`bash -lc`, the v0.8.13 fix) is the case most likely to
|
||
# print a MOTD/banner to stdout, which a blind `tail -1` would mistake for the
|
||
# path. We grep for the sentinel line and strip it; only if no sentinel is
|
||
# present (host somehow stripped it) do we fall back to the prior `tail -1`
|
||
# behaviour, so this can never regress a host that worked before.
|
||
find_cmd+='printf "SMATDB_PATH:%s\n" "$F"'
|
||
|
||
local _smat_raw remote_smatdb
|
||
# v0.8.15: honour a pinned HCIROOT (explicit export, no sudo-gated login profile).
|
||
# v0.8.17: dispatch over DIRECT sshpass or the ControlMaster per the alias flag.
|
||
# We capture stdout+stderr together (2>&1) as before — the SMATDB_PATH sentinel
|
||
# / ERROR: parsing already tolerates banner/sudo noise interleaved on stderr,
|
||
# so the direct path needs no extra filtering here.
|
||
_smat_raw=$(_dispatch_remote "$alias" "$find_cmd" 2>&1)
|
||
remote_smatdb=$(printf '%s\n' "$_smat_raw" | grep '^SMATDB_PATH:' | tail -1)
|
||
if [ -n "$remote_smatdb" ]; then
|
||
remote_smatdb="${remote_smatdb#SMATDB_PATH:}"
|
||
else
|
||
# No sentinel — surface any ERROR: line if present, else fall back to the
|
||
# last line (pre-hardening behaviour) so failure modes stay diagnosable.
|
||
remote_smatdb=$(printf '%s\n' "$_smat_raw" | grep '^ERROR:' | tail -1)
|
||
[ -n "$remote_smatdb" ] || remote_smatdb=$(printf '%s\n' "$_smat_raw" | tail -1)
|
||
fi
|
||
case "$remote_smatdb" in
|
||
ERROR:*|'') die "remote smatdb lookup failed: $remote_smatdb" ;;
|
||
esac
|
||
|
||
if [ -z "$days_back" ]; then
|
||
# Full mode: scp the whole .smatdb file.
|
||
local local_path
|
||
local_path=$(_pull_cache_path "$alias" "$remote_smatdb")
|
||
cmd_pull "$alias" "$remote_smatdb" "$local_path"
|
||
return $?
|
||
fi
|
||
|
||
# Sampled mode: run sqlite3 on the remote, return TSV with b64-encoded blobs.
|
||
# base64 -w0 is GNU coreutils; on BSD use plain base64 (no -w). We accept
|
||
# whichever is present; the awk in the SQL pipeline strips internal newlines
|
||
# for sturdy TSV.
|
||
#
|
||
# Output line shape (each message):
|
||
# <unix_ts_s>\t<direction>\t<type>\t<source>\t<dest>\t<b64-of-MessageContent>
|
||
# `direction` is "in" when DestConn=thread, else "out" (best-effort heuristic).
|
||
local sample_cmd
|
||
sample_cmd='set -e; '
|
||
sample_cmd+='which sqlite3 >/dev/null 2>&1 || { echo "ERROR: sqlite3 not on remote PATH" >&2; exit 4; }; '
|
||
sample_cmd+='B64() { if base64 --help 2>&1 | grep -q -- " -w"; then base64 -w0; else base64 | tr -d "\n"; fi; }; '
|
||
# Note: sqlite3 ".mode tabs" prints rows tab-separated; we redirect blob via
|
||
# writefile() into temp files, then base64 each. That avoids any binary
|
||
# mangling in the sqlite3 -ascii path. Approach: select rowids, then for each
|
||
# rowid pull MessageContent into a per-row temp file, b64 it inline.
|
||
sample_cmd+='TMP=$(mktemp -d); trap "rm -rf $TMP" EXIT; '
|
||
sample_cmd+='CUTOFF_MS=$(( ( $(date +%s) - '"$days_back"' * 86400 ) * 1000 )); '
|
||
sample_cmd+='sqlite3 "'"$remote_smatdb"'" "SELECT rowid, Time, IFNULL(Type,\"\"), IFNULL(SourceConn,\"\"), IFNULL(DestConn,\"\") FROM smat_msgs WHERE Time >= $CUTOFF_MS ORDER BY Time DESC LIMIT 1000" '
|
||
sample_cmd+='| while IFS="|" read -r rid tm typ src dst; do '
|
||
sample_cmd+=' blobfile="$TMP/$rid.bin"; '
|
||
sample_cmd+=' sqlite3 "'"$remote_smatdb"'" "SELECT writefile(\"$blobfile\", MessageContent) FROM smat_msgs WHERE rowid=$rid" >/dev/null 2>&1; '
|
||
sample_cmd+=' if [ "$dst" = "'"$thread"'" ]; then dir="in"; else dir="out"; fi; '
|
||
sample_cmd+=' printf "%s\t%s\t%s\t%s\t%s\t" "$(( tm / 1000 ))" "$dir" "$typ" "$src" "$dst"; '
|
||
sample_cmd+=' B64 < "$blobfile"; '
|
||
sample_cmd+=' printf "\n"; '
|
||
sample_cmd+='done; '
|
||
sample_cmd+='TOTAL=$(sqlite3 "'"$remote_smatdb"'" "SELECT COUNT(*) FROM smat_msgs WHERE Time >= $CUTOFF_MS"); '
|
||
sample_cmd+='RETURNED=$(sqlite3 "'"$remote_smatdb"'" "SELECT MIN(1000, COUNT(*)) FROM smat_msgs WHERE Time >= $CUTOFF_MS"); '
|
||
sample_cmd+='echo "# smatdb=$(basename '"$remote_smatdb"') days_back='"$days_back"' total_in_window=$TOTAL returned=$RETURNED truncated=$([ "$TOTAL" -gt 1000 ] && echo yes || echo no)" >&2'
|
||
|
||
# Login shell so sqlite3 resolves from the operator's PATH (v0.8.13), unless
|
||
# the alias has a pinned HCIROOT, in which case we export HCIROOT explicitly
|
||
# and skip the sudo-gated login profile (v0.8.15). Note: when pinned, sqlite3
|
||
# must be resolvable on the default non-login PATH; if it is not, the
|
||
# sample_cmd already emits a clear "ERROR: sqlite3 not on remote PATH".
|
||
# v0.8.17: dispatch over DIRECT sshpass or the ControlMaster per the alias flag.
|
||
_dispatch_remote "$alias" "$sample_cmd"
|
||
}
|
||
|
||
case "${1:-help}" in
|
||
hosts|list) shift; cmd_hosts ;;
|
||
add) shift; cmd_add "$@" ;;
|
||
remove|rm) shift; cmd_remove "$@" ;;
|
||
pass|passwd) shift; cmd_pass "$@" ;;
|
||
set-hciroot|hciroot) shift; cmd_set_hciroot "$@" ;;
|
||
set-direct|direct) shift; cmd_set_direct "$@" ;;
|
||
setup|open) shift; cmd_setup "$@" ;;
|
||
close|exit) shift; cmd_close "$@" ;;
|
||
status) shift; cmd_status "$@" ;;
|
||
exec|run) shift; cmd_exec "$@" ;;
|
||
discover) shift; cmd_discover "$@" ;;
|
||
pull) shift; cmd_pull "$@" ;;
|
||
push) shift; cmd_push "$@" ;;
|
||
pull-smat) shift; cmd_pull_smat "$@" ;;
|
||
-h|--help|help) cmd_help ;;
|
||
*) die "unknown subcommand: ${1:-} (run with --help)" ;;
|
||
esac
|