code wiki / _hdl_build / nx_access_audit_gate.nx

nx_access_audit_gate.nx

buildroot/runtime/_hdl_build/nx_access_audit_gate.nx

6148 B107 linesdepth 6pulls 6 transitivereach 0 importersview sourcekind gate/prooftopic access
docsdependenciesstructsconstsfunctions

about

nx_access_audit_gate.nx -- gate for the tamper-evident access audit log (nx_access_audit). Builds a chain of real PDP decision records, proves an intact chain verifies, and that EDITING an entry (e.g. flipping a DENY to ALLOW to hide an intrusion), tampering a stored hash, or REORDERING entries all break verification. Positive AND negative controls. Appends "ACCESSGATE row=nx_access_audit audit-log ... verdict=PASS" to knowledge/status/access_gate.log on all-pass. license_tier: ORIGINAL

dependencies 2 imports · 0 importers

nx_access_audit.nx nx_syscalls.nx nx_access_audit_gate.nx

imports: nx_access_audit.nxnx_syscalls.nx

imported by: nobody (leaf or entry point)

call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown

main sys_mmap au_slen aa_chain sys_mmap ↻ sha256_digest sys_mmap ↻ sha256_init sys_mmap ↻ sha256_k sha256_update sha256_compress_ni_blocks blk_set_byte sha256_compress sha256_compress_ni blk_word blk_byte sha256_final blk_set_byte ↻ sha256_compress ↻ aa_verify sys_mmap ↻ aa_chain ↻ au_row au_w sys_write au_num sys_mmap ↻ sys_write ↻ au_w ↻ au_num ↻ au_cat au_catnum sys_mmap ↻ sys_openat_append sys_write ↻ sys_close sys_exit

structs

none

consts

none

functions

9func au_w(s: *u8) -> i64 { var n: i64=0; while s[n]!=(0 as u8){n=n+1} sys_write(1,s,n); return 0 }
called by 2: au_rowmain calls 1: sys_write
10func au_num(v: i64) -> i64 { let bb: *u8=sys_mmap(28); var m: i64=v; if m<0{m=0-m}; let t: *u8=sys_mmap(28); var k: i64=0; if m==0{t[0]=48 as u8;k=1}; while m>0{t[k]=(48+(m%10)) as u8;m=m/10;k=k+1}; var i: i64=0; while i<k{bb[i]=t[k-1-i];i=i+1}; sys_write(1,bb,k); return 0 }
called by 2: au_rowmain calls 2: sys_mmapsys_write
11func au_cat(dst: *u8, off: i64, s: *u8) -> i64 { var o: i64=off; var k: i64=0; while s[k]!=(0 as u8){dst[o]=s[k];o=o+1;k=k+1} return o }
called by 1: main
12func au_catnum(dst: *u8, off: i64, v: i64) -> i64 { var o: i64=off; let t: *u8=sys_mmap(28); var m: i64=v; if m<0{m=0-m}; var k: i64=0; if m==0{t[0]=48 as u8;k=1}; while m>0{t[k]=(48+(m%10)) as u8;m=m/10;k=k+1}; var i: i64=0; while i<k{dst[o]=t[k-1-i];o=o+1;i=i+1} return o }
called by 1: main calls 1: sys_mmap
13func au_row(id: i64, ok: i64, what: *u8) -> i64 { au_w("AUROW " as *u8); au_num(id); au_w(" " as *u8); if ok==1 { au_w("PASS " as *u8) } else { au_w("FAIL " as *u8) } au_w(what); au_w("\n" as *u8); return ok }
called by 1: main calls 2: au_wau_num
14func au_slen(s: *u8) -> i64 { var n: i64=0; while s[n]!=(0 as u8){n=n+1} return n }
called by 1: main
16func main() -> i64
calls 13: sys_mmapau_slenaa_chainaa_verifyau_rowau_w+7