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§H.12 step 14: C accessors for BMAPFMT block-ACL fields

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blk_owner_fp_get/_set, blk_acl_allow_get/_set, blk_acl_ttl_get/_set,
blk_flags_get/_set -- thin read-modify-write wrappers over the existing
blk_get_meta()/blk_set_meta() (caching/dirty-tracking already owned
there). Sets up the C-primitive layer FORTH wrappers (step 15) will call,
mirroring the word-level ACL system's own split.

Verified 3-arch boot to ok> (amd64/aarch64/riscv64).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Robert Allan James
2026-09-03 07:29:01 -04:00
co-authored by Claude Opus 5
parent c19cc07ee3
commit 15e6836ca3
11 changed files with 27671 additions and 2 deletions
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src/block_subsystem.c
+79
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@@ -1238,6 +1238,85 @@ int blk_set_meta(uint32_t block_num, const blk_meta_t *meta) {
return BLK_OK;
}
/* BMAPFMT field accessors -- FABRIC-3.md §H.12 step 14. Thin
* read-modify-write wrappers over blk_get_meta()/blk_set_meta() above,
* which already own caching/dirty-tracking -- these add no state of
* their own. */
int blk_owner_fp_get(uint32_t block_num, uint8_t out_fp[8]) {
blk_meta_t meta;
int rc;
if (!out_fp) return BLK_EINVAL;
rc = blk_get_meta(block_num, &meta);
if (rc != BLK_OK) return rc;
memcpy(out_fp, meta.owner_fp, sizeof(meta.owner_fp));
return BLK_OK;
}
int blk_owner_fp_set(uint32_t block_num, const uint8_t fp[8]) {
blk_meta_t meta;
int rc;
if (!fp) return BLK_EINVAL;
rc = blk_get_meta(block_num, &meta);
if (rc != BLK_OK) return rc;
memcpy(meta.owner_fp, fp, sizeof(meta.owner_fp));
return blk_set_meta(block_num, &meta);
}
int blk_acl_allow_get(uint32_t block_num, uint8_t *out_allow) {
blk_meta_t meta;
int rc;
if (!out_allow) return BLK_EINVAL;
rc = blk_get_meta(block_num, &meta);
if (rc != BLK_OK) return rc;
*out_allow = meta.acl_allow;
return BLK_OK;
}
int blk_acl_allow_set(uint32_t block_num, uint8_t allow) {
blk_meta_t meta;
int rc = blk_get_meta(block_num, &meta);
if (rc != BLK_OK) return rc;
meta.acl_allow = allow;
return blk_set_meta(block_num, &meta);
}
int blk_acl_ttl_get(uint32_t block_num, uint32_t *out_ttl) {
blk_meta_t meta;
int rc;
if (!out_ttl) return BLK_EINVAL;
rc = blk_get_meta(block_num, &meta);
if (rc != BLK_OK) return rc;
*out_ttl = meta.acl_ttl;
return BLK_OK;
}
int blk_acl_ttl_set(uint32_t block_num, uint32_t ttl) {
blk_meta_t meta;
int rc = blk_get_meta(block_num, &meta);
if (rc != BLK_OK) return rc;
meta.acl_ttl = ttl;
return blk_set_meta(block_num, &meta);
}
int blk_flags_get(uint32_t block_num, uint64_t *out_flags) {
blk_meta_t meta;
int rc;
if (!out_flags) return BLK_EINVAL;
rc = blk_get_meta(block_num, &meta);
if (rc != BLK_OK) return rc;
*out_flags = meta.flags;
return BLK_OK;
}
int blk_flags_set(uint32_t block_num, uint64_t flags) {
blk_meta_t meta;
int rc = blk_get_meta(block_num, &meta);
if (rc != BLK_OK) return rc;
meta.flags = flags;
return blk_set_meta(block_num, &meta);
}
/* ===== weak hook (for main.c) ===== */
#if defined(__GNUC__) || defined(__clang__)
__attribute__((weak))