user: 下面的汇编指令对应的C源代码是什么：

```asm
<remove_pcp_port_forwarding_chain>:
  endbr64
  push   %rbx
  sub    $0x310,%rsp
  mov    %edi,%ebx
  mov    %fs:0x28,%rax
  mov    %rax,0x308(%rsp)
  xor    %eax,%eax
  movq   $0x0,(%rsp)
  movq   $0x0,0x8(%rsp)
  movq   $0x0,0x10(%rsp)
  movq   $0x0,0x18(%rsp)
  movq   $0x0,0x20(%rsp)
  movq   $0x0,0x28(%rsp)
  movq   $0x0,0x30(%rsp)
  movq   $0x0,0x38(%rsp)
  movq   $0x0,0x40(%rsp)
  movq   $0x0,0x48(%rsp)
  movq   $0x0,0x50(%rsp)
  movq   $0x0,0x58(%rsp)
  movq   $0x0,0x60(%rsp)
  movq   $0x0,0x68(%rsp)
  movq   $0x0,0x70(%rsp)
  movq   $0x0,0x78(%rsp)
  movq   $0x0,0x80(%rsp)
  movq   $0x0,0x88(%rsp)
  movq   $0x0,0x90(%rsp)
  movq   $0x0,0x98(%rsp)
  movq   $0x0,0xa0(%rsp)
  movq   $0x0,0xa8(%rsp)
  movq   $0x0,0xb0(%rsp)
  movq   $0x0,0xb8(%rsp)
  movq   $0x0,0xc0(%rsp)
  movq   $0x0,0xc8(%rsp)
  movq   $0x0,0xd0(%rsp)
  movq   $0x0,0xd8(%rsp)
  movq   $0x0,0xe0(%rsp)
  movq   $0x0,0xe8(%rsp)
  movq   $0x0,0xf0(%rsp)
  movq   $0x0,0xf8(%rsp)
  movq   $0x0,0x100(%rsp)
  movq   $0x0,0x108(%rsp)
  movq   $0x0,0x110(%rsp)
  movq   $0x0,0x118(%rsp)
  movq   $0x0,0x120(%rsp)
  movq   $0x0,0x128(%rsp)
  movq   $0x0,0x130(%rsp)
  movq   $0x0,0x138(%rsp)
  movq   $0x0,0x140(%rsp)
  movq   $0x0,0x148(%rsp)
  movq   $0x0,0x150(%rsp)
  movq   $0x0,0x158(%rsp)
  movq   $0x0,0x160(%rsp)
  movq   $0x0,0x168(%rsp)
  movq   $0x0,0x170(%rsp)
  movq   $0x0,0x178(%rsp)
  movq   $0x0,0x180(%rsp)
  movq   $0x0,0x188(%rsp)
  movq   $0x0,0x190(%rsp)
  movq   $0x0,0x198(%rsp)
  movq   $0x0,0x1a0(%rsp)
  movq   $0x0,0x1a8(%rsp)
  movq   $0x0,0x1b0(%rsp)
  movq   $0x0,0x1b8(%rsp)
  movq   $0x0,0x1c0(%rsp)
  movq   $0x0,0x1c8(%rsp)
  movq   $0x0,0x1d0(%rsp)
  movq   $0x0,0x1d8(%rsp)
  movq   $0x0,0x1e0(%rsp)
  movq   $0x0,0x1e8(%rsp)
  movq   $0x0,0x1f0(%rsp)
  movq   $0x0,0x1f8(%rsp)
  movq   $0x0,0x200(%rsp)
  movq   $0x0,0x208(%rsp)
  movq   $0x0,0x210(%rsp)
  movq   $0x0,0x218(%rsp)
  movq   $0x0,0x220(%rsp)
  movq   $0x0,0x228(%rsp)
  movq   $0x0,0x230(%rsp)
  movq   $0x0,0x238(%rsp)
  movq   $0x0,0x240(%rsp)
  movq   $0x0,0x248(%rsp)
  movq   $0x0,0x250(%rsp)
  movq   $0x0,0x258(%rsp)
  movq   $0x0,0x260(%rsp)
  movq   $0x0,0x268(%rsp)
  movq   $0x0,0x270(%rsp)
  movq   $0x0,0x278(%rsp)
  movq   $0x0,0x280(%rsp)
  movq   $0x0,0x288(%rsp)
  movq   $0x0,0x290(%rsp)
  movq   $0x0,0x298(%rsp)
  movq   $0x0,0x2a0(%rsp)
  movq   $0x0,0x2a8(%rsp)
  movq   $0x0,0x2b0(%rsp)
  movq   $0x0,0x2b8(%rsp)
  movq   $0x0,0x2c0(%rsp)
  movq   $0x0,0x2c8(%rsp)
  movq   $0x0,0x2d0(%rsp)
  movq   $0x0,0x2d8(%rsp)
  movq   $0x0,0x2e0(%rsp)
  movq   $0x0,0x2e8(%rsp)
  movq   $0x0,0x2f0(%rsp)
  movq   $0x0,0x2f8(%rsp)
  mov    %rsp,%rdi
  mov    %ebx,%ecx
  lea    D12(%rip),%rdx
  mov    $0x100,%esi
  call   <snprintf@plt>
  mov    %rax,%rdx
  mov    $0x0,%eax
  test   %rdx,%rdx
  jle    L44
  lea    0x100(%rsp),%rdi
  mov    %ebx,%ecx
  lea    D21(%rip),%rdx
  mov    $0x100,%esi
  call   <snprintf@plt>
  mov    %rax,%rdx
  mov    $0x0,%eax
  test   %rdx,%rdx
  jle    L44
  lea    0x200(%rsp),%rdi
  mov    %ebx,%ecx
  lea    D10(%rip),%rdx
  mov    $0x100,%esi
  call   <snprintf@plt>
  mov    %rax,%rdx
  mov    $0x0,%eax
  test   %rdx,%rdx
  jle    L44
  lea    0x200(%rsp),%rdx
  lea    0x100(%rsp),%rsi
  mov    %rsp,%rdi
  call   <remove_jump_pcp_rule_chains@plt>
  test   %eax,%eax
  jne    L53
L44:
  mov    0x308(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L37
  add    $0x310,%rsp
  pop    %rbx
  ret
L53:
  lea    0x200(%rsp),%rdx
  lea    0x100(%rsp),%rsi
  mov    %rsp,%rdi
  call   <flush_pcp_rule_chains@plt>
  test   %eax,%eax
  je     L44
  lea    0x200(%rsp),%rdx
  lea    0x100(%rsp),%rsi
  mov    %rsp,%rdi
  call   <delete_pcp_rule_chains@plt>
  test   %eax,%eax
  setne  %al
  movzbl %al,%eax
  jmp    L44
L37:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: label: D12
type_infered: string
name: disassemble_data
arguments: label: D21
type_infered: string
name: disassemble_data
arguments: label: D10
type_infered: string

tool: D12: PCP_NAT_PREROUTE_RULE_%d

tool: D21: PCP_NAT_POSTROUTE_RULE_%d

tool: D10: PCP_MANGLE_RULE_%d

assistant: ```c
bool remove_pcp_port_forwarding_chain(int index) {
  char chain_preroute[256] = {'\0'};
  char chain_postroute[256] = {'\0'};
  char chain_mangle[256] = {'\0'};
  if (snprintf(chain_preroute, 256, "PCP_NAT_PREROUTE_RULE_%d", index) <= 0 || snprintf(chain_postroute, 256, "PCP_NAT_POSTROUTE_RULE_%d", index) <= 0 || snprintf(chain_mangle, 256, "PCP_MANGLE_RULE_%d", index) <= 0) {
    return false;
  }
  if (!remove_jump_pcp_rule_chains(chain_preroute, chain_postroute, chain_mangle)) {
    return false;
  }
  if (!flush_pcp_rule_chains(chain_preroute, chain_postroute, chain_mangle)) {
    return false;
  }
  if (!delete_pcp_rule_chains(chain_preroute, chain_postroute, chain_mangle)) {
    return false;
  }
  return true;
}
```