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feat: Improved memfd-secret allocation (#347)

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Improve memfd-secret guard page allocation by using combination of mmap to map allocation area, and nest memfd-secret mapping and meta information with different permissions within the area

Implemented in quininer/memsec#18 

Co-authored-by: Prabhpreet Dua <615318+prabhpreet@users.noreply.github.com>
Co-authored-by: Karolin Varner <karo@cupdev.net>
This commit is contained in:
Prabhpreet Dua
2024-06-13 10:04:35 +05:30
committed by GitHub
parent f535a31cd7
commit 7a4f700186
2 changed files with 3 additions and 4 deletions
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5
Cargo.lock generated
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@@ -1291,9 +1291,8 @@ dependencies = [
[[package]] [[package]]
name = "memsec" name = "memsec"
version = "0.7.0" version = "0.6.3"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "git+https://github.com/rosenpass/memsec.git?rev=aceb9baee8aec6844125bd6612f92e9a281373df#aceb9baee8aec6844125bd6612f92e9a281373df"
checksum = "c797b9d6bb23aab2fc369c65f871be49214f5c759af65bde26ffaaa2b646b492"
dependencies = [ dependencies = [
"getrandom 0.2.15", "getrandom 0.2.15",
"libc", "libc",

2
Cargo.toml
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@@ -41,7 +41,7 @@ env_logger = "0.10.2"
toml = "0.7.8" toml = "0.7.8"
static_assertions = "1.1.0" static_assertions = "1.1.0"
allocator-api2 = "0.2.14" allocator-api2 = "0.2.14"
memsec = { version="0.7.0", features = [ "alloc_ext", ] } memsec = { git="https://github.com/rosenpass/memsec.git" ,rev="aceb9baee8aec6844125bd6612f92e9a281373df", features = [ "alloc_ext", ] }
rand = "0.8.5" rand = "0.8.5"
typenum = "1.17.0" typenum = "1.17.0"
log = { version = "0.4.21" } log = { version = "0.4.21" }