tools/testing/selftests/bpf/progs/verifier_sock_addr.c

Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/progs/verifier_sock_addr.c

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/bpf/progs/verifier_sock_addr.c
Extension
.c
Size
6719 bytes
Lines
332
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2024 Google LLC */

#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include <bpf_sockopt_helpers.h>
#include "bpf_misc.h"

SEC("cgroup/recvmsg4")
__success
int recvmsg4_good_return_code(struct bpf_sock_addr *ctx)
{
	return 1;
}

SEC("cgroup/recvmsg4")
__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
int recvmsg4_bad_return_code(struct bpf_sock_addr *ctx)
{
	return 0;
}

SEC("cgroup/recvmsg6")
__success
int recvmsg6_good_return_code(struct bpf_sock_addr *ctx)
{
	return 1;
}

SEC("cgroup/recvmsg6")
__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
int recvmsg6_bad_return_code(struct bpf_sock_addr *ctx)
{
	return 0;
}

SEC("cgroup/recvmsg_unix")
__success
int recvmsg_unix_good_return_code(struct bpf_sock_addr *ctx)
{
	return 1;
}

SEC("cgroup/recvmsg_unix")
__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
int recvmsg_unix_bad_return_code(struct bpf_sock_addr *ctx)
{
	return 0;
}

SEC("cgroup/sendmsg4")
__success
int sendmsg4_good_return_code_0(struct bpf_sock_addr *ctx)
{
	return 0;
}

SEC("cgroup/sendmsg4")
__success
int sendmsg4_good_return_code_1(struct bpf_sock_addr *ctx)
{
	return 1;
}

SEC("cgroup/sendmsg4")
__failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
int sendmsg4_bad_return_code(struct bpf_sock_addr *ctx)
{
	return 2;
}

SEC("cgroup/sendmsg6")
__success
int sendmsg6_good_return_code_0(struct bpf_sock_addr *ctx)
{
	return 0;
}

SEC("cgroup/sendmsg6")
__success
int sendmsg6_good_return_code_1(struct bpf_sock_addr *ctx)
{
	return 1;
}

SEC("cgroup/sendmsg6")
__failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
int sendmsg6_bad_return_code(struct bpf_sock_addr *ctx)
{
	return 2;

Annotation

Implementation Notes