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64 lines
1.5 KiB
Nix
64 lines
1.5 KiB
Nix
{ stdenv }:
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with stdenv.lib;
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''
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# Auto configuration with these constraints will enable most of the
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# important features (RAP, UDEREF, ASLR, memory sanitization).
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GRKERNSEC_CONFIG_AUTO y
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GRKERNSEC_CONFIG_DESKTOP y
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GRKERNSEC_CONFIG_PRIORITY_SECURITY y
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# We specify virt guest rather than host here, the latter deselects e.g.,
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# paravirtualization.
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GRKERNSEC_CONFIG_VIRT_GUEST y
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# Note: assumes platform supports CPU-level virtualization (so no pentium 4)
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GRKERNSEC_CONFIG_VIRT_EPT y
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GRKERNSEC_CONFIG_VIRT_KVM y
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# PaX control
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PAX_SOFTMODE y
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PAX_PT_PAX_FLAGS y
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PAX_XATTR_PAX_FLAGS y
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PAX_EI_PAX n
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PAX_INITIFY y
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# The bts instrumentation method is compatible with binary only modules.
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#
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# Note: if platform supports SMEP, we could do without this
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PAX_KERNEXEC_PLUGIN_METHOD_BTS y
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# Additional grsec hardening not implied by auto constraints
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GRKERNSEC_IO y
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GRKERNSEC_SYSFS_RESTRICT y
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GRKERNSEC_ROFS y
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GRKERNSEC_MODHARDEN y
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# Disable protections rendered useless by redistribution
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GRKERNSEC_HIDESYM n
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GRKERNSEC_RANDSTRUCT n
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# Disable protections covered by vanilla mechanisms
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GRKERNSEC_DMESG n
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GRKERNSEC_KMEM n
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GRKERNSEC_PROC n
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# Disable protections that are inappropriate for a general-purpose kernel
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GRKERNSEC_NO_SIMULT_CONNECT n
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# Enable additional audititing
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GRKERNSEC_AUDIT_MOUNT y
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GRKERNSEC_AUDIT_PTRACE y
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GRKERNSEC_FORKFAIL y
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# Wishlist: support trusted path execution
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GRKERNSEC_TPE n
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GRKERNSEC_SYSCTL y
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GRKERNSEC_SYSCTL_DISTRO y
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# Assume that appropriate sysctls are toggled once the system is up
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GRKERNSEC_SYSCTL_ON n
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''
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