Commit 15b6671e authored by Jordan Rife's avatar Jordan Rife Committed by Martin KaFai Lau
Browse files

selftests/bpf: Implement BPF programs for kernel socket operations 



This patch lays out a set of SYSCALL programs that can be used to invoke
the socket operation kfuncs in bpf_testmod, allowing a test program to
manipulate kernel socket operations from userspace.

Signed-off-by: default avatarJordan Rife <jrife@google.com>
Link: https://lore.kernel.org/r/20240429214529.2644801-4-jrife@google.com


Signed-off-by: default avatarMartin KaFai Lau <martin.lau@kernel.org>
parent bbb1cfdd

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

0 → 100644
+65 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/* Copyright (c) 2024 Google LLC */

#include <vmlinux.h>

#include <bpf/bpf_helpers.h>

#include "../bpf_testmod/bpf_testmod_kfunc.h"



SEC("syscall")

int init_sock(struct init_sock_args *args)

{

	bpf_kfunc_init_sock(args);



	return 0;

}



SEC("syscall")

int close_sock(void *ctx)

{

	bpf_kfunc_close_sock();



	return 0;

}



SEC("syscall")

int kernel_connect(struct addr_args *args)

{

	return bpf_kfunc_call_kernel_connect(args);

}



SEC("syscall")

int kernel_bind(struct addr_args *args)

{

	return bpf_kfunc_call_kernel_bind(args);

}



SEC("syscall")

int kernel_listen(struct addr_args *args)

{

	return bpf_kfunc_call_kernel_listen();

}



SEC("syscall")

int kernel_sendmsg(struct sendmsg_args *args)

{

	return bpf_kfunc_call_kernel_sendmsg(args);

}



SEC("syscall")

int sock_sendmsg(struct sendmsg_args *args)

{

	return bpf_kfunc_call_sock_sendmsg(args);

}



SEC("syscall")

int kernel_getsockname(struct addr_args *args)

{

	return bpf_kfunc_call_kernel_getsockname(args);

}



SEC("syscall")

int kernel_getpeername(struct addr_args *args)

{

	return bpf_kfunc_call_kernel_getpeername(args);

}



char _license[] SEC("license") = "GPL";