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https://github.com/freemkv/libfreemkv.git
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Matthew Jackson
6e14fc0c0c
Security - Remove the unsafe Vec::set_len over recycled sector buffers — UB reachable from safe code (GHSA-j8ww-f5fg-9pmh, low). Uses Vec::resize; pooling unchanged. CI / tooling - clippy on stable with the MSRV single-sourced from Cargo.toml; cargo-deny dependency-audit gate with first-party git sources allowed (#15); audience-based comment-guard (#17). Docs - README (keydb ownership, BD-J parser count), drive-access transport/reset notes, mux timeline module-doc links.
16 lines
724 B
Markdown
16 lines
724 B
Markdown
# Linux `sg*` device enumeration
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`enumerate_sg_names` (in `src/drive/linux.rs`) lists `/dev/sgN` SCSI-generic
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device names to probe for optical drives.
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Linux assigns `/dev/sgN` sequentially across *all* SCSI-generic devices
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(disks, tape, HBAs, optical), not just optical drives. That means a fixed
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`sg0..15` range can miss an optical drive on a host with many other SCSI
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targets ahead of it in enumeration order.
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To avoid that, the function prefers the exact present-device list from
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`/sys/class/scsi_generic/`, which enumerates only the `sg*` nodes that
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actually exist. It falls back to a bounded `sg0..15` probe only when sysfs
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itself is unreadable, which happens in some minimal containers that lack a
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mounted `/sys`.
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