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Mon, 09 Mar 2020 19:41:28 +0100 (CET) X-TM-AS-GCONF: 00 X-TM-AS-Product-Ver: IMSVA-9.1.0.1631-8.5.0.1020-25280.001 X-TM-AS-Result: No-1.776-7.0-31-10 X-imss-scan-details: No-1.776-7.0-31-10 X-TMASE-Version: IMSVA-9.1.0.1631-8.5.1020-25280.001 X-TMASE-Result: 10-1.775800-10.000000 X-TMASE-MatchedRID: YJG9ytXm/s5nuEpLNqEJsme0F1HB9i2hMVx/3ZYby796pt1oU+C/pOwX ofcWCzMeR5VEg2WHb7e6w0blN6o1l/MNTbjUKZM+20204SCJw/rLvfc3C6SWwnO0TctWrlA9dfu huqa4A1AZw5ucm3NLWhvYV6pkN/jgOLzSBOk91M5bF+jvJlkOptxs0lj1L8rvaUoLEaPNsPSl+9 Tl6lXp3K3aC25avUuauxliYAiybD/AHXRKkXCmPIIK2tjTqNotp1Pjcaldww0aVuuTY4OGgweWZ DV/J9uBGHD/KNtC9kNVhnxWlpagXK0iin8P0KjVKrDHzH6zmUXf+zJsO3bf/t9zZd3pUn7KlMa9 Q0Vx5vSl0s9gTN4+NZpBpHnW+wt+Wb1kI9uGZd+eAiCmPx4NwNivpTdmVCR2xEHRux+uk8ifEzJ 5hPndGXxqZoGIPX8Y+Lg+FkJw5Mx6KDeJ828D58CmQW6Xs5JoX8ngXjbQD/6R6RBq0m416KjYwA elybSOx9GG6tJ5RTDW65fiNexYGwnoQr0aJHnc0egPf++T1T/YdbOkPFfd3aWs8euL9yX5w8g2H BNcF5k= X-TMASE-SNAP-Result: 1.821001.0001-0-1-12:0,22:0,33:0,34:0-0 X-Greylist: Sender IP whitelisted, Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.6.2 (postfix.smtp2.imsva2 [10.0.100.76]); Mon, 09 Mar 2020 19:41:28 +0100 (CET) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 158.227.0.66 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: riku.voipio@iki.fi, laurent@vivier.eu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This is a partial implementation. Allows to remove a single or a list of already registered binfmt interpreters. Valid values are those in qemu_target_list. If TARGETS is empty, all the existing 'qemu-*' interpreters are removed. This is partial because 'debian' and 'systemd' configurations are not supported. The script will exit with error 'option clear not implemented for this mode yet'. Removal is done by printing '-1' as explained at: https://www.kernel.org/doc/Documentation/admin-guide/binfmt-misc.rst Signed-off-by: umarcor Reviewed-by: Laurent Vivier --- scripts/qemu-binfmt-conf.sh | 36 ++++++++++++++++++++++++++++++++++-- 1 file changed, 34 insertions(+), 2 deletions(-) diff --git a/scripts/qemu-binfmt-conf.sh b/scripts/qemu-binfmt-conf.sh index 538ef4aec0..55224a68e1 100755 --- a/scripts/qemu-binfmt-conf.sh +++ b/scripts/qemu-binfmt-conf.sh @@ -201,7 +201,7 @@ Options and associated environment variables: =20 Argument Env-variable Description TARGETS QEMU_TARGETS A single arch name or a list of them= (see all names below); - if empty, configure all known target= s; + if empty, configure/clear all known = targets; if 'NONE', no interpreter is configu= red. -h|--help display this usage -Q|--path PATH QEMU_PATH set path to qemu interpreter(s) @@ -210,6 +210,8 @@ TARGETS QEMU_TARGETS A single arch nam= e or a list of them (see uses are cloned from the open file. -c|--credential QEMU_CREDENTIAL (yes) credential and security tokens= are calculated according to the binary to interpret +-r|--clear QEMU_CLEAR (yes) remove registered interpreters= for target TARGETS; + then exit. -e|--exportdir PATH define where to write configuration = files (default: $SYSTEMDDIR or $DEBIANDIR) -s|--systemd don't write into /proc, generate fil= e(s) for @@ -222,6 +224,7 @@ QEMU_PATH=3D$QEMU_PATH QEMU_SUFFIX=3D$QEMU_SUFFIX QEMU_PERSISTENT=3D$QEMU_PERSISTENT QEMU_CREDENTIAL=3D$QEMU_CREDENTIAL +QEMU_CLEAR=3D$QEMU_CLEAR =20 To import templates with update-binfmts, use : =20 @@ -348,8 +351,22 @@ qemu_set_binfmts() { done } =20 +qemu_clear_notimplemented() { + echo "ERROR: option clear not implemented for this mode yet" 1>&2 + usage + exit 1 +} + +qemu_clear_interpreter() { + p=3D"/proc/sys/fs/binfmt_misc/$1" + if [ -f "$p" ]; then + printf %s -1 > "$p" + fi +} + CHECK=3Dqemu_check_bintfmt_misc BINFMT_SET=3Dqemu_register_interpreter +BINFMT_CLEAR=3Dqemu_clear_interpreter =20 SYSTEMDDIR=3D"/etc/binfmt.d" DEBIANDIR=3D"/usr/share/binfmts" @@ -359,20 +376,26 @@ QEMU_PATH=3D"${QEMU_PATH:-/usr/local/bin}" QEMU_SUFFIX=3D"${QEMU_SUFFIX:-}" QEMU_PERSISTENT=3D"${QEMU_PERSISTENT:-no}" QEMU_CREDENTIAL=3D"${QEMU_CREDENTIAL:-no}" +QEMU_CLEAR=3D"${QEMU_CLEAR:-no}" =20 -options=3D$(getopt -o dsQ:S:e:hcp -l debian,systemd,path:,suffix:,exportdi= r:,help,credential,persistent -- "$@") +options=3D$(getopt -o rdsQ:S:e:hcp -l clear,debian,systemd,path:,suffix:,e= xportdir:,help,credential,persistent -- "$@") eval set -- "$options" =20 while true; do case "$1" in + -r|--clear) + QEMU_CLEAR=3D"yes" + ;; -d|--debian) CHECK=3Dqemu_check_debian BINFMT_SET=3Dqemu_generate_debian + BINFMT_CLEAR=3Dqemu_clear_notimplemented EXPORTDIR=3D${EXPORTDIR:-$DEBIANDIR} ;; -s|--systemd) CHECK=3Dqemu_check_systemd BINFMT_SET=3Dqemu_generate_systemd + BINFMT_CLEAR=3Dqemu_clear_notimplemented EXPORTDIR=3D${EXPORTDIR:-$SYSTEMDDIR} ;; -Q|--path) @@ -407,4 +430,13 @@ done shift =20 $CHECK + +if [ "x$QEMU_CLEAR" =3D "xyes" ]; then + qemu_check_target_list "$@" + for t in $checked_target_list; do + $BINFMT_CLEAR "qemu-$t" + done + exit +fi + qemu_set_binfmts "$@" --=20 2.25.1