Skip to content

Commit

Permalink
Ignore syscalls which are not registered in cached rbpf executable. (#…
Browse files Browse the repository at this point in the history
  • Loading branch information
Lichtso authored Jan 29, 2021
1 parent 996a27d commit d026da4
Show file tree
Hide file tree
Showing 2 changed files with 67 additions and 54 deletions.
1 change: 0 additions & 1 deletion programs/bpf/tests/programs.rs
Original file line number Diff line number Diff line change
Expand Up @@ -2142,7 +2142,6 @@ fn test_program_upgradeable_locks() {
}
}

#[ignore]
#[cfg(feature = "bpf_rust")]
#[test]
fn test_program_bpf_syscall_feature_activation() {
Expand Down
120 changes: 67 additions & 53 deletions programs/bpf_loader/src/syscalls.rs
Original file line number Diff line number Diff line change
Expand Up @@ -147,6 +147,19 @@ pub fn register_syscalls(
Ok(syscall_registry)
}

macro_rules! bind_feature_gated_syscall_context_object {
($vm:expr, $invoke_context:expr, $feature_id:expr, $syscall_context_object:expr $(,)?) => {
if $invoke_context.is_feature_active($feature_id) {
match $vm.bind_syscall_context_object($syscall_context_object, None) {
Err(EbpfError::SyscallNotRegistered(_)) | Ok(()) => {}
Err(err) => {
return Err(err);
}
}
}
};
}

pub fn bind_syscall_context_objects<'a>(
loader_id: &'a Pubkey,
vm: &mut EbpfVm<'a, BPFError, crate::ThisInstructionMeter>,
Expand Down Expand Up @@ -178,50 +191,51 @@ pub fn bind_syscall_context_objects<'a>(
None,
)?;

if invoke_context.is_feature_active(&sol_log_compute_units_syscall::id()) {
vm.bind_syscall_context_object(
Box::new(SyscallLogBpfComputeUnits {
cost: 0,
compute_meter: invoke_context.get_compute_meter(),
logger: invoke_context.get_logger(),
}),
None,
)?;
}
if invoke_context.is_feature_active(&pubkey_log_syscall_enabled::id()) {
vm.bind_syscall_context_object(
Box::new(SyscallLogPubkey {
cost: bpf_compute_budget.log_pubkey_units,
compute_meter: invoke_context.get_compute_meter(),
logger: invoke_context.get_logger(),
loader_id,
}),
None,
)?;
}

if invoke_context.is_feature_active(&sha256_syscall_enabled::id()) {
vm.bind_syscall_context_object(
Box::new(SyscallSha256 {
sha256_base_cost: bpf_compute_budget.sha256_base_cost,
sha256_byte_cost: bpf_compute_budget.sha256_byte_cost,
compute_meter: invoke_context.get_compute_meter(),
loader_id,
}),
None,
)?;
}
bind_feature_gated_syscall_context_object!(
vm,
invoke_context,
&sol_log_compute_units_syscall::id(),
Box::new(SyscallLogBpfComputeUnits {
cost: 0,
compute_meter: invoke_context.get_compute_meter(),
logger: invoke_context.get_logger(),
}),
);

bind_feature_gated_syscall_context_object!(
vm,
invoke_context,
&pubkey_log_syscall_enabled::id(),
Box::new(SyscallLogPubkey {
cost: bpf_compute_budget.log_pubkey_units,
compute_meter: invoke_context.get_compute_meter(),
logger: invoke_context.get_logger(),
loader_id,
}),
);

bind_feature_gated_syscall_context_object!(
vm,
invoke_context,
&sha256_syscall_enabled::id(),
Box::new(SyscallSha256 {
sha256_base_cost: bpf_compute_budget.sha256_base_cost,
sha256_byte_cost: bpf_compute_budget.sha256_byte_cost,
compute_meter: invoke_context.get_compute_meter(),
loader_id,
}),
);

if invoke_context.is_feature_active(&ristretto_mul_syscall_enabled::id()) {
vm.bind_syscall_context_object(
Box::new(SyscallRistrettoMul {
cost: 0,
compute_meter: invoke_context.get_compute_meter(),
loader_id,
}),
None,
)?;
}
bind_feature_gated_syscall_context_object!(
vm,
invoke_context,
&ristretto_mul_syscall_enabled::id(),
Box::new(SyscallRistrettoMul {
cost: 0,
compute_meter: invoke_context.get_compute_meter(),
loader_id,
}),
);

vm.bind_syscall_context_object(
Box::new(SyscallCreateProgramAddress {
Expand All @@ -232,16 +246,16 @@ pub fn bind_syscall_context_objects<'a>(
None,
)?;

if invoke_context.is_feature_active(&try_find_program_address_syscall_enabled::id()) {
vm.bind_syscall_context_object(
Box::new(SyscallTryFindProgramAddress {
cost: bpf_compute_budget.create_program_address_units,
compute_meter: invoke_context.get_compute_meter(),
loader_id,
}),
None,
)?;
}
bind_feature_gated_syscall_context_object!(
vm,
invoke_context,
&try_find_program_address_syscall_enabled::id(),
Box::new(SyscallTryFindProgramAddress {
cost: bpf_compute_budget.create_program_address_units,
compute_meter: invoke_context.get_compute_meter(),
loader_id,
}),
);

// Cross-program invocation syscalls

Expand Down

0 comments on commit d026da4

Please sign in to comment.