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https://github.com/tmux/tmux.git
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90 lines
2.5 KiB
Bash
90 lines
2.5 KiB
Bash
#!/bin/sh
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# On Linux the server should join a session keyring of its own unless the
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# session-keyring option is off, so it keeps working after the login session's
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# keyring is revoked, and revoke it when it exits.
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PATH=/bin:/usr/bin
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TERM=screen
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[ "$(uname)" = Linux ] || exit 0
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keyctl session - true >/dev/null 2>&1 || exit 0
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[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
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OUT=$(mktemp -d)
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TMUX="$TEST_TMUX -LtestA$$ -f/dev/null"
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TMUX2="$TEST_TMUX -LtestB$$ -f$OUT/conf"
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$TMUX kill-server 2>/dev/null
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$TMUX2 kill-server 2>/dev/null
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fail()
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{
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echo "$*"
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exit 1
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}
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cleanup()
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{
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$TMUX kill-server 2>/dev/null
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$TMUX2 kill-server 2>/dev/null
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[ -s $OUT/holder ] && kill $(cat $OUT/holder) 2>/dev/null
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rm -rf "$OUT"
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}
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trap cleanup 0 1 15
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# Set KEYRING to the session keyring of a new pane on server $1.
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pane_keyring()
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{
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$1 new-window -d "keyctl id @s >$OUT/pane 2>&1; $1 wait-for -S pane" ||
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fail "could not create pane"
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$1 wait-for pane
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KEYRING=$(cat $OUT/pane)
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case "$KEYRING" in
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''|*[!0-9]*)
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fail "pane keyring not usable: $KEYRING"
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;;
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esac
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}
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# With the option off, the server should keep the keyring it was started with.
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echo 'set -g session-keyring off' >$OUT/conf
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OFF=$(keyctl session - sh -c "
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$TMUX2 new -d 'sleep 1000' && keyctl id @s
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" 2>/dev/null) || fail "could not start server"
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pane_keyring "$TMUX2"
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[ "$KEYRING" = "$OFF" ] || fail "pane has a new keyring with option off"
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$TMUX2 kill-server
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# Start the server from a login session with its own keyring, then revoke that
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# keyring as pam_keyinit(8) does when the login session ends.
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LOGIN=$(keyctl session - sh -c "
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$TMUX new -d 'sleep 1000' && keyctl id @s && keyctl revoke @s
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" 2>/dev/null) || fail "could not start server"
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# A new pane should still have a usable keyring, with the user keyring linked.
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pane_keyring "$TMUX"
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[ "$KEYRING" != "$LOGIN" ] || fail "pane has the login keyring"
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keyctl rlist $KEYRING | grep -qw "$(keyctl id @u)" ||
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fail "user keyring not linked"
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# The server should revoke its keyring when it exits, even while a process it
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# started (which ignores the SIGHUP from its pane closing) still holds it.
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$TMUX new-window -d "
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trap '' HUP
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echo \$\$ >$OUT/holder
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$TMUX wait-for -S held
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exec sleep 100
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" || fail "could not create pane"
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$TMUX wait-for held
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SERVER=$($TMUX display -p '#{pid}')
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$TMUX kill-server
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n=0
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while kill -0 $SERVER 2>/dev/null && [ $n -lt 50 ]; do
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sleep 0.1
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n=$((n + 1))
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done
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keyctl rdescribe $KEYRING >$OUT/exit 2>&1
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grep -q "revoked" $OUT/exit || fail "keyring not revoked: $(cat $OUT/exit)"
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exit 0
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