Support dynamic guest identity (UID/GID) configuration via environment variables#109
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Support dynamic guest identity (UID/GID) configuration via environment variables#109doanbaotrung wants to merge 1 commit into
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Re-trigger cubic
environment variables Allow users to dynamically configure the simulated guest UID and GID at runtime via environment variables, for example: ELFUSE_GUEST_UID and ELFUSE_GUEST_GID. If these variables are present in the host process environment, elfuse should parse them and override the default guest UID/GID.
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Allow users to dynamically configure the simulated guest
UID and GID at runtime via environment variables, for
example: ELFUSE_GUEST_UID and ELFUSE_GUEST_GID.
If these variables are present in the host process
environment, elfuse should parse them and override
the default guest UID/GID.
Fixes #103
Summary by cubic
Add runtime overrides for the simulated guest UID/GID via
ELFUSE_GUEST_UIDandELFUSE_GUEST_GID. The values propagate to auxv and procfs so programs see the correct identity.proc_identity_init(); ignore invalid/out-of-range inputs; fall back toGUEST_UID/GUEST_GIDwhen unset.AT_UID/AT_EUID/AT_GID/AT_EGIDand/proc/self/{status,task/*/status}now useproc_get_*(real/effective/saved-set plus the fourth field) so all four IDs reflect overrides.test-identity-override-host; built and executed as part ofmake check.Written for commit a9f59ab. Summary will update on new commits.