Robert Allan JamesandClaude Sonnet 5
b031b802e3
FABRIC.md -> FABRIC-0.md FABRIC-2.md -> FABRIC-1.md FABRIC-3.md -> FABRIC-2.md (the current/living document) FABRIC-4.md unchanged (new #3 to follow separately) Every cross-reference repo-wide updated to match, including doc-comment citations inside kernel source (.c/.h) files -- done via an ordered placeholder substitution (FABRIC-3.md->placeholder2, FABRIC-2.md-> placeholder1, FABRIC.md->placeholder0, then placeholders resolved to final names) in a single pass per file to avoid double-shifting already-renamed references. One line in capsules/font.4th grew past the 64-char block-format limit as a side effect of the longer filename; shortened it and reverified with mkcapsule --lint (34/34 pass) before rebuilding. Verified 3-arch boot to ok> (amd64/aarch64/riscv64, each in the foreground) after the fix; logs and DoE CSVs from this session's verification runs included per this repo's own audit-artifact convention. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_019YcT3H2PQeyujrzjqS3Var
60 lines
2.9 KiB
C
60 lines
2.9 KiB
C
/*
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* zuse_cert_devblock.h -- SUPERSEDED 2026-08-28 (FABRIC-2.md §F.20/§F.21).
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* Zuse is now thumbdrive-resident, not system-resident: her seed lives
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* only on her own minted thumbdrive, never written to the fence. The
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* fence's devblock_from_top=0 slot this type used to occupy now holds
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* zuse_genesis_marker_t (zuse_genesis_marker.h) instead -- pubkey only,
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* no seed. This type is no longer written by any code path; kept in the
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* repo as historical record of the format it replaced, per this
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* project's own convention for superseded design (see e.g. the
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* TRIPOD.md/HERMES.md/ARTEMIS.md/CONSOLE.md superseded-header pattern).
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* Do not resurrect writes to this format.
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*
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* Original doc, kept for context:
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*
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* on-disk record format for Zuse's cert, stored
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* in devblock_from_top=0 of the top-of-device system-metadata fence
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* (block_subsystem.h's blk_meta_zone_read()/write(), Phase 8, FABRIC-2.md
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* §C). Raw, unpacked 4 KiB devblock -- same convention as the volume
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* header itself (magic + version + fields + pad-to-4096, real CRC from
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* day one, matching homeblocks_sig_t's own precedent for exactly this
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* reason: this gates a real security check, not a placeholder).
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*
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* Deliberately its own header, not inlined at the one call site that
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* uses it today (kernel_main.c's first-boot mint-or-load): the ongoing
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* `MINT` word (still open, FABRIC-2.md) will be a second consumer of
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* this exact format later, and the format should be stable and
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* documented once rather than ad-hoc.
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*/
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#ifndef STARKERNEL_ZUSE_CERT_DEVBLOCK_H
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#define STARKERNEL_ZUSE_CERT_DEVBLOCK_H
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#include <stdint.h>
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/* Packed via shifts, not a hand-computed hex literal -- this project's
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* own standing lesson about hand-derived numeric constants in this
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* class of code (see FABRIC-2.md's Ed25519/scalar25519 writeups). */
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#define ZUSE_CERT_DEVBLOCK_MAGIC \
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((uint32_t)'Z' | ((uint32_t)'U' << 8) | ((uint32_t)'S' << 16) | ((uint32_t)'E' << 24))
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#define ZUSE_CERT_DEVBLOCK_VERSION 1u
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typedef struct {
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uint32_t magic; /* ZUSE_CERT_DEVBLOCK_MAGIC; anything else means
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* "not a real cert yet" (blank/foreign bytes),
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* not a format-corruption error */
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uint32_t version; /* ZUSE_CERT_DEVBLOCK_VERSION */
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uint8_t seed[32]; /* Ed25519 seed -- the private identity */
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uint8_t pubkey[32]; /* Ed25519 public key derived from seed at mint time */
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uint64_t crc; /* CRC-64/ISO (block_subsystem.h's compute_crc64())
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* over every byte of this struct up to (not
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* including) this field -- real from day one,
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* this gates a real security check */
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uint8_t _pad[4096 - (4 + 4 + 32 + 32 + 8)];
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} zuse_cert_devblock_t;
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_Static_assert(sizeof(zuse_cert_devblock_t) == 4096,
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"zuse_cert_devblock_t must be exactly one 4 KiB devblock");
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#endif /* STARKERNEL_ZUSE_CERT_DEVBLOCK_H */
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