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auto-dns & manual-dns smartcontracts updated to actual DNS standard version by starlightduck

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This commit is contained in:
tolya-yanot 2022-09-30 12:14:14 +03:00
parent 1ded7af335
commit 313d37e134
4 changed files with 61 additions and 26 deletions
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44
crypto/smartcont/dns-auto-code.fc
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@ -7,8 +7,15 @@
| Author: Oleksandr Murzin (tg: @skydev / em: alexhacker64@gmail.com) |
| October 2019 |
\------------------------------------------------------------------------/
Updated to actual DNS standard version by starlightduck in 2022
-}
;;===========================================================================;;
;; Custom ASM instructions ;;
;;===========================================================================;;
cell udict_get_ref_(cell dict, int key_len, int index) asm(index dict key_len) "DICTUGETOPTREF";
;;===========================================================================;;
;; Utility functions ;;
;;===========================================================================;;
@ -19,7 +26,7 @@
[OptRef<1b+1r?>:Hashmap<UInt<160b>(Time|Hash128)->Slice(DomName)>:gc]
[UInt<32b>:stdperiod] [Gram:PPReg] [Gram:PPCell] [Gram:PPBit]
[UInt<32b>:lasthousekeeping]
<CatTable> := HashmapE 16 ^DNSRecord
<CatTable> := HashmapE 256 (~~16~~) ^DNSRecord
STORED DOMAIN NAME SLICE FORMAT: (#ZeroChars<7b>) (Domain name value)
#Zeros allows to simultaneously store, for example, com\0 and com\0google\0
@ -189,6 +196,7 @@ int check_owner(cell cat_table, cell owner_info, int src_wc, int src_addr, int s
store_data(ctl, domdata, gc, [stdper, ppr, ppc, ppb], nhk, lhk);
return send_ok(0);
}
var (addr, query_id, op) = query_info;
if (op == 0x4344656c) { ;; CDel = destroy smart contract
ifnot (domdata.null?()) {
;; domain dictionary not empty, force gc
@ -199,9 +207,12 @@ int check_owner(cell cat_table, cell owner_info, int src_wc, int src_addr, int s
;; domain dictionary still not empty, error
return send_error(0xee74656d);
}
var (addr, query_id, op) = query_info;
return send_message(addr, 0xef6b6179, query_id, op, 0, 128 + 32);
}
if (op == 0x54616b65) { ;; Take = take grams from the contract
var amount = in_msg~load_grams();
return send_message(addr, 0xef6b6179, query_id, op, amount, 64);
}
return send_error(0xffffffff);
}
@ -289,7 +300,8 @@ int check_owner(cell cat_table, cell owner_info, int src_wc, int src_addr, int s
if (exp >= n) { ;; entry not expired
cell cat_table = val~load_ref();
val.end_parse();
var (cown, ok) = cat_table.idict_get_ref?(16, -2);
;; update: category length now u256 instead of i16, owner index is now 0 instead of -2
var (cown, ok) = cat_table.udict_get_ref?(256, 0);
if (ok) {
owner_info = cown;
}
@ -318,14 +330,15 @@ int check_owner(cell cat_table, cell owner_info, int src_wc, int src_addr, int s
data = in_msg~load_ref();
;; basic integrity check of (client-provided) dictionary
ifnot (data.dict_empty?()) { ;; 1000 gas!
var (oinfo, ok) = data.idict_get_ref?(16, -2);
;; update: category length now u256 instead of i16, owner index is now 0 instead of -2
var (oinfo, ok) = data.udict_get_ref?(256, 0);
if (ok) {
var cs = oinfo.begin_parse();
throw_unless(31, cs.slice_bits() >= 16 + 3 + 8 + 256);
throw_unless(31, cs.preload_uint(19) == 0x9fd3 * 8 + 4);
}
(_, _, int minok) = data.idict_get_min?(16);
(_, _, int maxok) = data.idict_get_max?(16);
(_, _, int minok) = data.udict_get_min?(256); ;; update: category length now u256 instead of i16
(_, _, int maxok) = data.udict_get_max?(256); ;; update: category length now u256 instead of i16
throw_unless(31, minok & maxok);
}
} else {
@ -410,7 +423,8 @@ int check_owner(cell cat_table, cell owner_info, int src_wc, int src_addr, int s
(int bits, int refs) = domain.slice_bits_refs();
throw_if(30, refs | (bits & 7)); ;; malformed input (~ 8n-bit)
ifnot (bits) {
return (0, null(), 0, null()); ;; zero-length input
;; return (0, null(), 0, null()); ;; zero-length input
throw(30); ;; update: throw exception for empty input
}
int domain_last_byte = domain.slice_last(8).preload_uint(8);
@ -420,7 +434,14 @@ int check_owner(cell cat_table, cell owner_info, int src_wc, int src_addr, int s
bits += 8;
}
if (bits == 8) {
return (0, null(), 0, null()); ;; zero-length input, but with zero byte
return (0, null(), 8, null()); ;; zero-length input, but with zero byte
;; update: return 8 as resolved, but with no data
}
int domain_first_byte = domain.preload_uint(8);
if (domain_first_byte == 0) {
;; update: remove prefix \0
domain~load_uint(8);
bits -= 8;
}
var ds = get_data().begin_parse();
(_, cell root) = (ds~load_ref(), ds~load_dict());
@ -453,10 +474,11 @@ int check_owner(cell cat_table, cell owner_info, int src_wc, int src_addr, int s
(int, cell) dnsresolve(slice domain, int category) method_id {
(int exp, cell cat_table, int exact?, slice pfx) = dnsdictlookup(domain, now());
ifnot (exp) {
return (0, null());
return (exact?, null()); ;; update: reuse exact? to return 8 for \0
}
ifnot (exact?) { ;; incomplete subdomain found, must return next resolver (-1)
category = -1;
category = "dns_next_resolver"H; ;; 0x19f02441ee588fdb26ee24b2568dd035c3c9206e11ab979be62e55558a1d17ff
;; update: next resolver is now sha256("dns_next_resolver") instead of -1
}
int pfx_bits = pfx.slice_bits();
@ -467,7 +489,7 @@ int check_owner(cell cat_table, cell owner_info, int src_wc, int src_addr, int s
ifnot (category) {
return (pfx_bits, cat_table); ;; return cell with entire dictionary for 0
} else {
cell cat_found = cat_table.idict_get_ref(16, category);
cell cat_found = cat_table.udict_get_ref_(256, category); ;; update: category length now u256 instead of i16
return (pfx_bits, cat_found);
}
}