Commit 2766d5db by Alexander Popov

Update the README

parent 34c1063e
......@@ -50,130 +50,133 @@ optional arguments:
[+] Trying to detect architecture in "config_files/distros/ubuntu-bionic-generic.config"...
[+] Detected architecture: X86_64
[+] Checking "config_files/distros/ubuntu-bionic-generic.config" against hardening preferences...
option name | desired val | decision | reason || check result
====================================================================================================================
CONFIG_BUG | y |defconfig | self_protection || OK
CONFIG_STRICT_KERNEL_RWX | y |defconfig | self_protection || OK
CONFIG_STACKPROTECTOR_STRONG | y |defconfig | self_protection ||OK: CONFIG_CC_STACKPROTECTOR_STRONG "y"
CONFIG_SLUB_DEBUG | y |defconfig | self_protection || OK
CONFIG_STRICT_MODULE_RWX | y |defconfig | self_protection || OK
CONFIG_PAGE_TABLE_ISOLATION | y |defconfig | self_protection || OK
CONFIG_RANDOMIZE_MEMORY | y |defconfig | self_protection || OK
CONFIG_RANDOMIZE_BASE | y |defconfig | self_protection || OK
CONFIG_RETPOLINE | y |defconfig | self_protection || OK
CONFIG_X86_SMAP | y |defconfig | self_protection || OK
CONFIG_X86_INTEL_UMIP | y |defconfig | self_protection || OK
CONFIG_SYN_COOKIES | y |defconfig | self_protection || OK
CONFIG_VMAP_STACK | y |defconfig | self_protection || OK
CONFIG_THREAD_INFO_IN_TASK | y |defconfig | self_protection || OK
CONFIG_BUG_ON_DATA_CORRUPTION | y | kspp | self_protection || FAIL: "is not set"
CONFIG_DEBUG_WX | y | kspp | self_protection || OK
CONFIG_SCHED_STACK_END_CHECK | y | kspp | self_protection || OK
CONFIG_SLAB_FREELIST_HARDENED | y | kspp | self_protection || OK
CONFIG_SLAB_FREELIST_RANDOM | y | kspp | self_protection || OK
CONFIG_SHUFFLE_PAGE_ALLOCATOR | y | kspp | self_protection || FAIL: not found
CONFIG_FORTIFY_SOURCE | y | kspp | self_protection || OK
CONFIG_GCC_PLUGINS | y | kspp | self_protection || FAIL: "is not set"
CONFIG_GCC_PLUGIN_RANDSTRUCT | y | kspp | self_protection || FAIL: not found
CONFIG_GCC_PLUGIN_LATENT_ENTROPY | y | kspp | self_protection || FAIL: not found
CONFIG_DEBUG_LIST | y | kspp | self_protection || FAIL: "is not set"
CONFIG_DEBUG_SG | y | kspp | self_protection || FAIL: "is not set"
CONFIG_DEBUG_CREDENTIALS | y | kspp | self_protection || FAIL: "is not set"
CONFIG_DEBUG_NOTIFIERS | y | kspp | self_protection || FAIL: "is not set"
CONFIG_PAGE_POISONING | y | kspp | self_protection || FAIL: "is not set"
CONFIG_HARDENED_USERCOPY | y | kspp | self_protection || OK
CONFIG_HARDENED_USERCOPY_FALLBACK | is not set | kspp | self_protection || OK: not found
CONFIG_MODULE_SIG | y | kspp | self_protection || OK
CONFIG_MODULE_SIG_ALL | y | kspp | self_protection || OK
CONFIG_MODULE_SIG_SHA512 | y | kspp | self_protection || OK
CONFIG_MODULE_SIG_FORCE | y | kspp | self_protection || FAIL: "is not set"
CONFIG_DEFAULT_MMAP_MIN_ADDR | 65536 | kspp | self_protection || OK
CONFIG_REFCOUNT_FULL | y | kspp | self_protection || FAIL: "is not set"
CONFIG_LOCK_DOWN_KERNEL | y | clipos | self_protection || OK
CONFIG_SECURITY_DMESG_RESTRICT | y | clipos | self_protection || FAIL: "is not set"
CONFIG_DEBUG_VIRTUAL | y | clipos | self_protection || FAIL: "is not set"
CONFIG_STATIC_USERMODEHELPER | y | clipos | self_protection || FAIL: "is not set"
CONFIG_SLAB_MERGE_DEFAULT | is not set | clipos | self_protection || FAIL: "y"
CONFIG_GCC_PLUGIN_RANDSTRUCT_PERFORMANCE| is not set | clipos | self_protection ||FAIL: CONFIG_GCC_PLUGIN_RANDSTRUCT is needed
CONFIG_GCC_PLUGIN_STACKLEAK | y | clipos | self_protection || FAIL: not found
CONFIG_STACKLEAK_METRICS | is not set | clipos | self_protection ||FAIL: CONFIG_GCC_PLUGIN_STACKLEAK is needed
CONFIG_STACKLEAK_RUNTIME_DISABLE | is not set | clipos | self_protection ||FAIL: CONFIG_GCC_PLUGIN_STACKLEAK is needed
CONFIG_RANDOM_TRUST_CPU | is not set | clipos | self_protection || OK: not found
CONFIG_MICROCODE | y | clipos | self_protection || OK
CONFIG_IOMMU_SUPPORT | y | clipos | self_protection || OK
CONFIG_INTEL_IOMMU | y | clipos | self_protection || OK
CONFIG_INTEL_IOMMU_SVM | y | clipos | self_protection || OK
CONFIG_INTEL_IOMMU_DEFAULT_ON | y | clipos | self_protection || FAIL: "is not set"
CONFIG_INIT_STACK_ALL | y | my | self_protection || FAIL: not found
CONFIG_SLUB_DEBUG_ON | y | my | self_protection || FAIL: "is not set"
CONFIG_SECURITY_LOADPIN | y | my | self_protection || FAIL: "is not set"
CONFIG_RESET_ATTACK_MITIGATION | y | my | self_protection || OK
CONFIG_PAGE_POISONING_NO_SANITY | is not set | my | self_protection ||FAIL: CONFIG_PAGE_POISONING is needed
CONFIG_PAGE_POISONING_ZERO | is not set | my | self_protection ||FAIL: CONFIG_PAGE_POISONING is needed
CONFIG_AMD_IOMMU | y | my | self_protection || OK
CONFIG_AMD_IOMMU_V2 | y | my | self_protection || FAIL: "m"
CONFIG_SECURITY | y |defconfig | security_policy || OK
CONFIG_SECURITY_YAMA | y | kspp | security_policy || OK
CONFIG_SECCOMP | y |defconfig | cut_attack_surface || OK
CONFIG_SECCOMP_FILTER | y |defconfig | cut_attack_surface || OK
CONFIG_STRICT_DEVMEM | y |defconfig | cut_attack_surface || OK
CONFIG_MODULES | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_DEVMEM | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_IO_STRICT_DEVMEM | y | kspp | cut_attack_surface || FAIL: "is not set"
CONFIG_ACPI_CUSTOM_METHOD | is not set | kspp | cut_attack_surface || OK
CONFIG_COMPAT_BRK | is not set | kspp | cut_attack_surface || OK
CONFIG_DEVKMEM | is not set | kspp | cut_attack_surface || OK
CONFIG_COMPAT_VDSO | is not set | kspp | cut_attack_surface || OK
CONFIG_BINFMT_MISC | is not set | kspp | cut_attack_surface || FAIL: "m"
CONFIG_INET_DIAG | is not set | kspp | cut_attack_surface || FAIL: "m"
CONFIG_KEXEC | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_PROC_KCORE | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_LEGACY_PTYS | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_HIBERNATION | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_LEGACY_VSYSCALL_NONE | y | kspp | cut_attack_surface || FAIL: "is not set"
CONFIG_IA32_EMULATION | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_X86_X32 | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_MODIFY_LDT_SYSCALL | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_X86_PTDUMP | is not set |grsecurity| cut_attack_surface || OK
CONFIG_ZSMALLOC_STAT | is not set |grsecurity| cut_attack_surface || OK
CONFIG_PAGE_OWNER | is not set |grsecurity| cut_attack_surface || OK
CONFIG_DEBUG_KMEMLEAK | is not set |grsecurity| cut_attack_surface || OK
CONFIG_BINFMT_AOUT | is not set |grsecurity| cut_attack_surface || OK: not found
CONFIG_KPROBES | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_UPROBES | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_GENERIC_TRACER | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_PROC_VMCORE | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_PROC_PAGE_MONITOR | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_USELIB | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_CHECKPOINT_RESTORE | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_USERFAULTFD | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_HWPOISON_INJECT | is not set |grsecurity| cut_attack_surface || FAIL: "m"
CONFIG_MEM_SOFT_DIRTY | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_DEVPORT | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_DEBUG_FS | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_NOTIFIER_ERROR_INJECTION | is not set |grsecurity| cut_attack_surface || FAIL: "m"
CONFIG_ACPI_TABLE_UPGRADE | is not set | lockdown | cut_attack_surface || FAIL: "y"
CONFIG_ACPI_APEI_EINJ | is not set | lockdown | cut_attack_surface || FAIL: "m"
CONFIG_PROFILING | is not set | lockdown | cut_attack_surface || FAIL: "y"
CONFIG_BPF_SYSCALL | is not set | lockdown | cut_attack_surface || FAIL: "y"
CONFIG_MMIOTRACE_TEST | is not set | lockdown | cut_attack_surface || OK
CONFIG_KSM | is not set | clipos | cut_attack_surface || FAIL: "y"
CONFIG_IKCONFIG | is not set | clipos | cut_attack_surface || OK
CONFIG_KALLSYMS | is not set | clipos | cut_attack_surface || FAIL: "y"
CONFIG_X86_VSYSCALL_EMULATION | is not set | clipos | cut_attack_surface || FAIL: "y"
CONFIG_MAGIC_SYSRQ | is not set | clipos | cut_attack_surface || FAIL: "y"
CONFIG_KEXEC_FILE | is not set | clipos | cut_attack_surface || FAIL: "y"
CONFIG_USER_NS | is not set | clipos | cut_attack_surface || FAIL: "y"
CONFIG_LDISC_AUTOLOAD | is not set | clipos | cut_attack_surface || OK: not found
CONFIG_MMIOTRACE | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_LIVEPATCH | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_IP_DCCP | is not set | my | cut_attack_surface || FAIL: "m"
CONFIG_IP_SCTP | is not set | my | cut_attack_surface || FAIL: "m"
CONFIG_FTRACE | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_BPF_JIT | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_ARCH_MMAP_RND_BITS | 32 | clipos |userspace_protection|| FAIL: "28"
[+] config check is finished: 'OK' - 50 / 'FAIL' - 70
option name | desired val | decision | reason || check result
=========================================================================================================================
CONFIG_BUG | y |defconfig | self_protection || OK
CONFIG_STRICT_KERNEL_RWX | y |defconfig | self_protection || OK
CONFIG_STACKPROTECTOR_STRONG | y |defconfig | self_protection ||OK: CONFIG_CC_STACKPROTECTOR_STRONG "y"
CONFIG_SLUB_DEBUG | y |defconfig | self_protection || OK
CONFIG_STRICT_MODULE_RWX | y |defconfig | self_protection || OK
CONFIG_MICROCODE | y |defconfig | self_protection || OK
CONFIG_RETPOLINE | y |defconfig | self_protection || OK
CONFIG_X86_SMAP | y |defconfig | self_protection || OK
CONFIG_X86_UMIP | y |defconfig | self_protection ||OK: CONFIG_X86_INTEL_UMIP "y"
CONFIG_IOMMU_SUPPORT | y |defconfig | self_protection || OK
CONFIG_SYN_COOKIES | y |defconfig | self_protection || OK
CONFIG_PAGE_TABLE_ISOLATION | y |defconfig | self_protection || OK
CONFIG_RANDOMIZE_MEMORY | y |defconfig | self_protection || OK
CONFIG_INTEL_IOMMU | y |defconfig | self_protection || OK
CONFIG_AMD_IOMMU | y |defconfig | self_protection || OK
CONFIG_VMAP_STACK | y |defconfig | self_protection || OK
CONFIG_RANDOMIZE_BASE | y |defconfig | self_protection || OK
CONFIG_THREAD_INFO_IN_TASK | y |defconfig | self_protection || OK
CONFIG_BUG_ON_DATA_CORRUPTION | y | kspp | self_protection || FAIL: "is not set"
CONFIG_DEBUG_WX | y | kspp | self_protection || OK
CONFIG_SCHED_STACK_END_CHECK | y | kspp | self_protection || OK
CONFIG_SLAB_FREELIST_HARDENED | y | kspp | self_protection || OK
CONFIG_SLAB_FREELIST_RANDOM | y | kspp | self_protection || OK
CONFIG_SHUFFLE_PAGE_ALLOCATOR | y | kspp | self_protection || FAIL: not found
CONFIG_FORTIFY_SOURCE | y | kspp | self_protection || OK
CONFIG_GCC_PLUGINS | y | kspp | self_protection || FAIL: "is not set"
CONFIG_GCC_PLUGIN_RANDSTRUCT | y | kspp | self_protection || FAIL: not found
CONFIG_GCC_PLUGIN_LATENT_ENTROPY | y | kspp | self_protection || FAIL: not found
CONFIG_DEBUG_LIST | y | kspp | self_protection || FAIL: "is not set"
CONFIG_DEBUG_SG | y | kspp | self_protection || FAIL: "is not set"
CONFIG_DEBUG_CREDENTIALS | y | kspp | self_protection || FAIL: "is not set"
CONFIG_DEBUG_NOTIFIERS | y | kspp | self_protection || FAIL: "is not set"
CONFIG_PAGE_POISONING | y | kspp | self_protection || FAIL: "is not set"
CONFIG_HARDENED_USERCOPY | y | kspp | self_protection || OK
CONFIG_HARDENED_USERCOPY_FALLBACK | is not set | kspp | self_protection || OK: not found
CONFIG_MODULE_SIG | y | kspp | self_protection || OK
CONFIG_MODULE_SIG_ALL | y | kspp | self_protection || OK
CONFIG_MODULE_SIG_SHA512 | y | kspp | self_protection || OK
CONFIG_MODULE_SIG_FORCE | y | kspp | self_protection || FAIL: "is not set"
CONFIG_DEFAULT_MMAP_MIN_ADDR | 65536 | kspp | self_protection || OK
CONFIG_REFCOUNT_FULL | y | kspp | self_protection || FAIL: "is not set"
CONFIG_INIT_STACK_ALL | y | clipos | self_protection || FAIL: not found
CONFIG_INIT_ON_ALLOC_DEFAULT_ON | y | clipos | self_protection || FAIL: not found
CONFIG_INIT_ON_FREE_DEFAULT_ON | y | clipos | self_protection || FAIL: not found
CONFIG_SECURITY_DMESG_RESTRICT | y | clipos | self_protection || FAIL: "is not set"
CONFIG_DEBUG_VIRTUAL | y | clipos | self_protection || FAIL: "is not set"
CONFIG_STATIC_USERMODEHELPER | y | clipos | self_protection || FAIL: "is not set"
CONFIG_SLAB_MERGE_DEFAULT | is not set | clipos | self_protection || FAIL: "y"
CONFIG_GCC_PLUGIN_RANDSTRUCT_PERFORMANCE | is not set | clipos | self_protection ||FAIL: CONFIG_GCC_PLUGIN_RANDSTRUCT is needed
CONFIG_GCC_PLUGIN_STACKLEAK | y | clipos | self_protection || FAIL: not found
CONFIG_STACKLEAK_METRICS | is not set | clipos | self_protection ||FAIL: CONFIG_GCC_PLUGIN_STACKLEAK is needed
CONFIG_STACKLEAK_RUNTIME_DISABLE | is not set | clipos | self_protection ||FAIL: CONFIG_GCC_PLUGIN_STACKLEAK is needed
CONFIG_RANDOM_TRUST_CPU | is not set | clipos | self_protection || OK: not found
CONFIG_INTEL_IOMMU_SVM | y | clipos | self_protection || OK
CONFIG_INTEL_IOMMU_DEFAULT_ON | y | clipos | self_protection || FAIL: "is not set"
CONFIG_SLUB_DEBUG_ON | y | my | self_protection || FAIL: "is not set"
CONFIG_RESET_ATTACK_MITIGATION | y | my | self_protection || OK
CONFIG_PAGE_POISONING_NO_SANITY | is not set | my | self_protection ||FAIL: CONFIG_PAGE_POISONING is needed
CONFIG_PAGE_POISONING_ZERO | is not set | my | self_protection ||FAIL: CONFIG_PAGE_POISONING is needed
CONFIG_AMD_IOMMU_V2 | y | my | self_protection || FAIL: "m"
CONFIG_SECURITY | y |defconfig | security_policy || OK
CONFIG_SECURITY_YAMA | y | kspp | security_policy || OK
CONFIG_SECURITY_LOADPIN | y | my | security_policy || FAIL: "is not set"
CONFIG_SECURITY_LOCKDOWN_LSM | y | my | security_policy || FAIL: not found
CONFIG_SECURITY_LOCKDOWN_LSM_EARLY | y | my | security_policy || FAIL: not found
CONFIG_LOCK_DOWN_KERNEL_FORCE_CONFIDENTIALITY| y | my | security_policy || FAIL: not found
CONFIG_SECCOMP | y |defconfig | cut_attack_surface || OK
CONFIG_SECCOMP_FILTER | y |defconfig | cut_attack_surface || OK
CONFIG_STRICT_DEVMEM | y |defconfig | cut_attack_surface || OK
CONFIG_MODULES | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_DEVMEM | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_IO_STRICT_DEVMEM | y | kspp | cut_attack_surface || FAIL: "is not set"
CONFIG_ACPI_CUSTOM_METHOD | is not set | kspp | cut_attack_surface || OK
CONFIG_COMPAT_BRK | is not set | kspp | cut_attack_surface || OK
CONFIG_DEVKMEM | is not set | kspp | cut_attack_surface || OK
CONFIG_COMPAT_VDSO | is not set | kspp | cut_attack_surface || OK
CONFIG_BINFMT_MISC | is not set | kspp | cut_attack_surface || FAIL: "m"
CONFIG_INET_DIAG | is not set | kspp | cut_attack_surface || FAIL: "m"
CONFIG_KEXEC | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_PROC_KCORE | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_LEGACY_PTYS | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_HIBERNATION | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_LEGACY_VSYSCALL_NONE | y | kspp | cut_attack_surface || FAIL: "is not set"
CONFIG_IA32_EMULATION | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_X86_X32 | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_MODIFY_LDT_SYSCALL | is not set | kspp | cut_attack_surface || FAIL: "y"
CONFIG_X86_PTDUMP | is not set |grsecurity| cut_attack_surface || OK
CONFIG_ZSMALLOC_STAT | is not set |grsecurity| cut_attack_surface || OK
CONFIG_PAGE_OWNER | is not set |grsecurity| cut_attack_surface || OK
CONFIG_DEBUG_KMEMLEAK | is not set |grsecurity| cut_attack_surface || OK
CONFIG_BINFMT_AOUT | is not set |grsecurity| cut_attack_surface || OK: not found
CONFIG_KPROBES | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_UPROBES | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_GENERIC_TRACER | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_PROC_VMCORE | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_PROC_PAGE_MONITOR | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_USELIB | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_CHECKPOINT_RESTORE | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_USERFAULTFD | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_HWPOISON_INJECT | is not set |grsecurity| cut_attack_surface || FAIL: "m"
CONFIG_MEM_SOFT_DIRTY | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_DEVPORT | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_DEBUG_FS | is not set |grsecurity| cut_attack_surface || FAIL: "y"
CONFIG_NOTIFIER_ERROR_INJECTION | is not set |grsecurity| cut_attack_surface || FAIL: "m"
CONFIG_ACPI_TABLE_UPGRADE | is not set | lockdown | cut_attack_surface || FAIL: "y"
CONFIG_ACPI_APEI_EINJ | is not set | lockdown | cut_attack_surface || FAIL: "m"
CONFIG_PROFILING | is not set | lockdown | cut_attack_surface || FAIL: "y"
CONFIG_BPF_SYSCALL | is not set | lockdown | cut_attack_surface || FAIL: "y"
CONFIG_MMIOTRACE_TEST | is not set | lockdown | cut_attack_surface || OK
CONFIG_KSM | is not set | clipos | cut_attack_surface || FAIL: "y"
CONFIG_KALLSYMS | is not set | clipos | cut_attack_surface || FAIL: "y"
CONFIG_X86_VSYSCALL_EMULATION | is not set | clipos | cut_attack_surface || FAIL: "y"
CONFIG_MAGIC_SYSRQ | is not set | clipos | cut_attack_surface || FAIL: "y"
CONFIG_KEXEC_FILE | is not set | clipos | cut_attack_surface || FAIL: "y"
CONFIG_USER_NS | is not set | clipos | cut_attack_surface || FAIL: "y"
CONFIG_LDISC_AUTOLOAD | is not set | clipos | cut_attack_surface || OK: not found
CONFIG_MMIOTRACE | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_LIVEPATCH | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_IP_DCCP | is not set | my | cut_attack_surface || FAIL: "m"
CONFIG_IP_SCTP | is not set | my | cut_attack_surface || FAIL: "m"
CONFIG_FTRACE | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_BPF_JIT | is not set | my | cut_attack_surface || FAIL: "y"
CONFIG_ARCH_MMAP_RND_BITS | 32 | clipos |userspace_protection|| FAIL: "28"
[+] config check is finished: 'OK' - 48 / 'FAIL' - 75
```
## kconfig-hardened-check versioning
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment