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proot/test/test-getres32.sh

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fake_id0: Make 32-bit suid binaries raise their faked privileges on PRoot 64-bit. PR_execve shouldn't be handled in SYSCALL_EXIT_END: the original version of the register that defines the ABI is overwritten -- on purpose -- by transfer_load_script(). As a consequence, when executing a 32-bit program on a 64-bit version of PRoot, get_abi() returned ABI_2 instead of DEFAULT (remember, the ABI change is effective only once the syscall has fully returned).
2015-02-24 20:54:42 +08:00
if [ -z `which id` ] || [ -z `which grep` ] || [ ! -x ${ROOTFS}/bin/exec-m32-suid ] || [ ! -x ${ROOTFS}/bin/exec-m32-sgid ] || [ ! -x ${ROOTFS}/bin/getresuid ] || [ ! -x ${ROOTFS}/bin/getresgid ]; then
exit 125
fi
MY_UID=$(id -u)
MY_GID=$(id -g)
${PROOT} -i ${MY_UID}:${MY_GID} -R ${ROOTFS} exec-m32-suid /bin/getresuid | grep "^${MY_UID} 0 0$"
${PROOT} -i ${MY_UID}:${MY_GID} -R ${ROOTFS} exec-m32-suid /bin/getresgid | grep "^${MY_GID} ${MY_GID} ${MY_GID}$"
${PROOT} -i ${MY_UID}:${MY_GID} -R ${ROOTFS} exec-m32-sgid /bin/getresuid | grep "^${MY_UID} ${MY_UID} ${MY_UID}$"
${PROOT} -i ${MY_UID}:${MY_GID} -R ${ROOTFS} exec-m32-sgid /bin/getresgid | grep "^${MY_GID} 0 0$"
${PROOT} -R ${ROOTFS} exec-m32-suid /bin/getresuid | grep "^${MY_UID} ${MY_UID} ${MY_UID}$"
${PROOT} -R ${ROOTFS} exec-m32-suid /bin/getresgid | grep "^${MY_GID} ${MY_GID} ${MY_GID}$"
${PROOT} -R ${ROOTFS} exec-m32-sgid /bin/getresuid | grep "^${MY_UID} ${MY_UID} ${MY_UID}$"
${PROOT} -R ${ROOTFS} exec-m32-sgid /bin/getresgid | grep "^${MY_GID} ${MY_GID} ${MY_GID}$"