contracts: Replace sp-sandbox and wasmi-validation by newest wasmi (#12501)

* Replace sp-sandbox and wasmi-validation by just wasmi * ".git/.scripts/bench-bot.sh" pallet dev pallet_contracts * Re-check original code on re-instrumentation * Fix clippy * ".git/.scripts/bench-bot.sh" pallet dev pallet_contracts * Apply suggestions from code review Co-authored-by: Robin Freyler <robin.freyler@gmail.com> * Replace wasmi by ::wasmi * Bump wasmi to 0.20 * Add explanation for `unreachable` * Change proof * Fixup master merge * ".git/.scripts/bench-bot.sh" pallet dev pallet_contracts * Fixup naming inconsistencies introduced by reentrancy PR * Fix `scan_imports` docs * Apply suggestions from code review Co-authored-by: Sasha Gryaznov <hi@agryaznov.com> * Fixup suggestions * Remove unnecessary &mut * Fix test * ".git/.scripts/bench-bot.sh" pallet dev pallet_contracts * Fix benchmark merge fail * ".git/.scripts/bench-bot.sh" pallet dev pallet_contracts * Fix docs as suggested by code review * Improve docs for `CodeRejected` * Apply suggestions from code review Co-authored-by: Sasha Gryaznov <hi@agryaznov.com> * Fix logic bug when setting `deterministic_only` * Don't panic when module fails to compile * Apply suggestions from code review Co-authored-by: Robin Freyler <robin.freyler@gmail.com> Co-authored-by: command-bot <> Co-authored-by: Robin Freyler <robin.freyler@gmail.com> Co-authored-by: Sasha Gryaznov <hi@agryaznov.com>
2026-05-31 05:11:02 +00:00 · 2022-11-24 23:51:36 +01:00
parent e69c3649b5
commit 08657f14b7
23 changed files with 1909 additions and 1634 deletions
@@ -0,0 +1,76 @@
+;; This fixture recursively tests if reentrance_count returns correct reentrant count value when
+;; using seal_call to make caller contract call to itself
+(module
+	(import "seal0" "seal_input" (func $seal_input (param i32 i32)))
+	(import "seal0" "seal_address" (func $seal_address (param i32 i32)))
+	(import "seal1" "seal_call" (func $seal_call (param i32 i32 i64 i32 i32 i32 i32 i32) (result i32)))
+	(import "__unstable__" "reentrance_count" (func $reentrance_count (result i32)))
+	(import "env" "memory" (memory 1 1))
+
+	;; [0, 32) reserved for $seal_address output
+
+	;; [32, 36) buffer for the call stack height
+
+	;; [36, 40) size of the input buffer
+	(data (i32.const 36) "\04")
+
+	;; [40, 44) length of the buffer for $seal_address
+	(data (i32.const 40) "\20")
+
+	(func $assert (param i32)
+		(block $ok
+			(br_if $ok
+				(get_local 0)
+			)
+			(unreachable)
+		)
+	)
+	(func (export "call")
+		(local $expected_reentrance_count i32)
+		(local $seal_call_exit_code i32)
+
+		;; reading current contract address
+		(call $seal_address (i32.const 0) (i32.const 40))
+
+		;; reading passed input
+		(call $seal_input (i32.const 32) (i32.const 36))
+
+		;; reading manually passed reentrant count
+		(set_local $expected_reentrance_count (i32.load (i32.const 32)))
+
+		;; reentrance count is calculated correctly
+		(call $assert
+			(i32.eq (call $reentrance_count) (get_local $expected_reentrance_count))
+		)
+
+		;; re-enter 5 times in a row and assert that the reentrant counter works as expected
+		(i32.eq (call $reentrance_count) (i32.const 5))
+		(if
+			(then) ;; recursion exit case
+			(else
+				;; incrementing $expected_reentrance_count passed to the contract
+				(i32.store (i32.const 32) (i32.add (i32.load (i32.const 32)) (i32.const 1)))
+
+				;; Call to itself
+				(set_local $seal_call_exit_code
+					(call $seal_call
+						(i32.const 8)	;; Allow reentrancy flag set
+						(i32.const 0)	;; Pointer to "callee" address
+						(i64.const 0)	;; How much gas to devote for the execution. 0 = all.
+						(i32.const 0)	;; Pointer to the buffer with value to transfer
+						(i32.const 32)	;; Pointer to input data buffer address
+						(i32.const 4)	;; Length of input data buffer
+						(i32.const 0xffffffff) ;; u32 max sentinel value: do not copy output
+						(i32.const 0) ;; Ptr to output buffer len
+					)
+				)
+
+				(call $assert
+					(i32.eq (get_local $seal_call_exit_code) (i32.const 0))
+				)
+			)
+		)
+	)
+
+	(func (export "deploy"))
+)