selftests/bpf: Retire test_sock.c

Completely remove test_sock.c and associated config.

Signed-off-by: Jordan Rife <jrife@google.com>
Link: https://lore.kernel.org/r/20241022152913.574836-5-jrife@google.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>

1 files changed, 0 insertions, 231 deletions

diff --git a/tools/testing/selftests/bpf/test_sock.c b/tools/testing/selftests/bpf/test_sock.c
deleted file mode 100644
index f97850f1d84a..000000000000
--- a/tools/testing/selftests/bpf/test_sock.c
+++ /dev/null
@@ -1,231 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (c) 2018 Facebook
-
-#include <stdio.h>
-#include <unistd.h>
-
-#include <arpa/inet.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-
-#include <linux/filter.h>
-
-#include <bpf/bpf.h>
-
-#include "cgroup_helpers.h"
-#include <bpf/bpf_endian.h>
-#include "bpf_util.h"
-
-#define CG_PATH		"/foo"
-#define MAX_INSNS	512
-
-char bpf_log_buf[BPF_LOG_BUF_SIZE];
-static bool verbose = false;
-
-struct sock_test {
-	const char *descr;
-	/* BPF prog properties */
-	struct bpf_insn	insns[MAX_INSNS];
-	enum bpf_attach_type expected_attach_type;
-	enum bpf_attach_type attach_type;
-	/* Socket properties */
-	int domain;
-	int type;
-	/* Endpoint to bind() to */
-	const char *ip;
-	unsigned short port;
-	unsigned short port_retry;
-	/* Expected test result */
-	enum {
-		LOAD_REJECT,
-		ATTACH_REJECT,
-		BIND_REJECT,
-		SUCCESS,
-		RETRY_SUCCESS,
-		RETRY_REJECT
-	} result;
-};
-
-static struct sock_test tests[] = {
-};
-
-static size_t probe_prog_length(const struct bpf_insn *fp)
-{
-	size_t len;
-
-	for (len = MAX_INSNS - 1; len > 0; --len)
-		if (fp[len].code != 0 || fp[len].imm != 0)
-			break;
-	return len + 1;
-}
-
-static int load_sock_prog(const struct bpf_insn *prog,
-			  enum bpf_attach_type attach_type)
-{
-	LIBBPF_OPTS(bpf_prog_load_opts, opts);
-	int ret, insn_cnt;
-
-	insn_cnt = probe_prog_length(prog);
-
-	opts.expected_attach_type = attach_type;
-	opts.log_buf = bpf_log_buf;
-	opts.log_size = BPF_LOG_BUF_SIZE;
-	opts.log_level = 2;
-
-	ret = bpf_prog_load(BPF_PROG_TYPE_CGROUP_SOCK, NULL, "GPL", prog, insn_cnt, &opts);
-	if (verbose && ret < 0)
-		fprintf(stderr, "%s\n", bpf_log_buf);
-
-	return ret;
-}
-
-static int attach_sock_prog(int cgfd, int progfd,
-			    enum bpf_attach_type attach_type)
-{
-	return bpf_prog_attach(progfd, cgfd, attach_type, BPF_F_ALLOW_OVERRIDE);
-}
-
-static int bind_sock(int domain, int type, const char *ip,
-		     unsigned short port, unsigned short port_retry)
-{
-	struct sockaddr_storage addr;
-	struct sockaddr_in6 *addr6;
-	struct sockaddr_in *addr4;
-	int sockfd = -1;
-	socklen_t len;
-	int res = SUCCESS;
-
-	sockfd = socket(domain, type, 0);
-	if (sockfd < 0)
-		goto err;
-
-	memset(&addr, 0, sizeof(addr));
-
-	if (domain == AF_INET) {
-		len = sizeof(struct sockaddr_in);
-		addr4 = (struct sockaddr_in *)&addr;
-		addr4->sin_family = domain;
-		addr4->sin_port = htons(port);
-		if (inet_pton(domain, ip, (void *)&addr4->sin_addr) != 1)
-			goto err;
-	} else if (domain == AF_INET6) {
-		len = sizeof(struct sockaddr_in6);
-		addr6 = (struct sockaddr_in6 *)&addr;
-		addr6->sin6_family = domain;
-		addr6->sin6_port = htons(port);
-		if (inet_pton(domain, ip, (void *)&addr6->sin6_addr) != 1)
-			goto err;
-	} else {
-		goto err;
-	}
-
-	if (bind(sockfd, (const struct sockaddr *)&addr, len) == -1) {
-		/* sys_bind() may fail for different reasons, errno has to be
-		 * checked to confirm that BPF program rejected it.
-		 */
-		if (errno != EPERM)
-			goto err;
-		if (port_retry)
-			goto retry;
-		res = BIND_REJECT;
-		goto out;
-	}
-
-	goto out;
-retry:
-	if (domain == AF_INET)
-		addr4->sin_port = htons(port_retry);
-	else
-		addr6->sin6_port = htons(port_retry);
-	if (bind(sockfd, (const struct sockaddr *)&addr, len) == -1) {
-		if (errno != EPERM)
-			goto err;
-		res = RETRY_REJECT;
-	} else {
-		res = RETRY_SUCCESS;
-	}
-	goto out;
-err:
-	res = -1;
-out:
-	close(sockfd);
-	return res;
-}
-
-static int run_test_case(int cgfd, const struct sock_test *test)
-{
-	int progfd = -1;
-	int err = 0;
-	int res;
-
-	printf("Test case: %s .. ", test->descr);
-	progfd = load_sock_prog(test->insns, test->expected_attach_type);
-	if (progfd < 0) {
-		if (test->result == LOAD_REJECT)
-			goto out;
-		else
-			goto err;
-	}
-
-	if (attach_sock_prog(cgfd, progfd, test->attach_type) < 0) {
-		if (test->result == ATTACH_REJECT)
-			goto out;
-		else
-			goto err;
-	}
-
-	res = bind_sock(test->domain, test->type, test->ip, test->port,
-			test->port_retry);
-	if (res > 0 && test->result == res)
-		goto out;
-
-err:
-	err = -1;
-out:
-	/* Detaching w/o checking return code: best effort attempt. */
-	if (progfd != -1)
-		bpf_prog_detach(cgfd, test->attach_type);
-	close(progfd);
-	printf("[%s]\n", err ? "FAIL" : "PASS");
-	return err;
-}
-
-static int run_tests(int cgfd)
-{
-	int passes = 0;
-	int fails = 0;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(tests); ++i) {
-		if (run_test_case(cgfd, &tests[i]))
-			++fails;
-		else
-			++passes;
-	}
-	printf("Summary: %d PASSED, %d FAILED\n", passes, fails);
-	return fails ? -1 : 0;
-}
-
-int main(int argc, char **argv)
-{
-	int cgfd = -1;
-	int err = 0;
-
-	cgfd = cgroup_setup_and_join(CG_PATH);
-	if (cgfd < 0)
-		goto err;
-
-	/* Use libbpf 1.0 API mode */
-	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
-
-	if (run_tests(cgfd))
-		goto err;
-
-	goto out;
-err:
-	err = -1;
-out:
-	close(cgfd);
-	cleanup_cgroup_environment();
-	return err;
-}