Add program id spoof tests (#13866)

programs/bpf/rust/spoof1/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "solana-bpf-rust-spoof1"
+version = "1.5.0"
+description = "Solana BPF test program written in Rust"
+authors = ["Solana Maintainers <maintainers@solana.foundation>"]
+repository = "https://github.com/solana-labs/solana"
+license = "Apache-2.0"
+homepage = "https://solana.com/"
+edition = "2018"
+
+[dependencies]
+solana-program = { path = "../../../../sdk/program", version = "1.5.0" }
+
+[lib]
+crate-type = ["cdylib"]
+
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]

programs/bpf/rust/spoof1/Xargo.toml

@@ -0,0 +1,2 @@
+[target.bpfel-unknown-unknown.dependencies.std]
+features = []

programs/bpf/rust/spoof1/src/lib.rs

@@ -0,0 +1,54 @@
+use solana_program::{
+    account_info::AccountInfo,
+    entrypoint,
+    entrypoint::ProgramResult,
+    info,
+    instruction::{AccountMeta, Instruction},
+    program::invoke,
+    pubkey::Pubkey,
+    system_instruction::SystemInstruction,
+    system_program,
+};
+
+entrypoint!(process_instruction);
+fn process_instruction(
+    _program_id: &Pubkey,
+    accounts: &[AccountInfo],
+    _instruction_data: &[u8],
+) -> ProgramResult {
+    let fake_system = &accounts[1];
+    let target = &accounts[2];
+    let me = &accounts[3];
+
+    let mut tmp_native_owner = [0u8; 32];
+    tmp_native_owner.copy_from_slice(accounts[0].owner.as_ref());
+
+    let owner_addr = accounts[0].owner as *const Pubkey;
+    unsafe {
+        std::ptr::write_volatile(owner_addr as *mut [u8; 32], fake_system.owner.to_bytes());
+    }
+
+    let system = &accounts[0];
+    let mut new_system = system.clone();
+    new_system.data = fake_system.data.clone();
+
+    let account_metas = vec![
+        AccountMeta::new(*target.key, false),
+        AccountMeta::new(*me.key, false),
+    ];
+    let ix = Instruction::new(
+        system_program::id(),
+        &SystemInstruction::Transfer { lamports: 1 },
+        account_metas,
+    );
+
+    info!("swapped owner and data");
+    invoke(&ix, &[target.clone(), me.clone(), new_system])?;
+
+    let owner_addr = accounts[0].owner as *const Pubkey;
+    unsafe {
+        std::ptr::write_volatile(owner_addr as *mut [u8; 32], tmp_native_owner);
+    }
+
+    Ok(())
+}

programs/bpf/rust/spoof1_system/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "solana-bpf-rust-spoof1-system"
+version = "1.5.0"
+description = "Solana BPF test program written in Rust"
+authors = ["Solana Maintainers <maintainers@solana.foundation>"]
+repository = "https://github.com/solana-labs/solana"
+license = "Apache-2.0"
+homepage = "https://solana.com/"
+edition = "2018"
+
+[dependencies]
+solana-program = { path = "../../../../sdk/program", version = "1.5.0" }
+
+[lib]
+crate-type = ["cdylib"]
+
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]

programs/bpf/rust/spoof1_system/Xargo.toml

@@ -0,0 +1,2 @@
+[target.bpfel-unknown-unknown.dependencies.std]
+features = []

programs/bpf/rust/spoof1_system/src/lib.rs

@@ -0,0 +1,19 @@
+use solana_program::{
+    account_info::AccountInfo, entrypoint, entrypoint::ProgramResult, pubkey::Pubkey,
+};
+
+entrypoint!(process_instruction);
+fn process_instruction(
+    _program_id: &Pubkey,
+    accounts: &[AccountInfo],
+    _instruction_data: &[u8],
+) -> ProgramResult {
+    let from = &accounts[0];
+    let to = &accounts[1];
+
+    let to_balance = to.lamports();
+    **to.lamports.borrow_mut() = to_balance + from.lamports();
+    **from.lamports.borrow_mut() = 0u64;
+
+    Ok(())
+}