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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>
This commit is contained in:
Jordan Rife
Martin KaFai Lau
parent
af522f13e9
commit
eea6c14c10
1
tools/testing/selftests/bpf/.gitignore
vendored
1
tools/testing/selftests/bpf/.gitignore
vendored
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@ -16,7 +16,6 @@ fixdep
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/test_progs-cpuv4
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test_verifier_log
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feature
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test_sock
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urandom_read
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test_sockmap
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test_lirc_mode2_user
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@ -84,7 +84,7 @@ endif
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# Order correspond to 'make run_tests' order
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TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \
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test_sock test_sockmap \
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test_sockmap \
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test_tcpnotify_user test_sysctl \
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test_progs-no_alu32
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TEST_INST_SUBDIRS := no_alu32
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@ -335,7 +335,6 @@ JSON_WRITER := $(OUTPUT)/json_writer.o
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CAP_HELPERS := $(OUTPUT)/cap_helpers.o
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NETWORK_HELPERS := $(OUTPUT)/network_helpers.o
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$(OUTPUT)/test_sock: $(CGROUP_HELPERS) $(TESTING_HELPERS)
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$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS)
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$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS)
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$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS)
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@ -1,231 +0,0 @@
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// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2018 Facebook
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#include <stdio.h>
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#include <unistd.h>
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#include <arpa/inet.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <linux/filter.h>
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#include <bpf/bpf.h>
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#include "cgroup_helpers.h"
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#include <bpf/bpf_endian.h>
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#include "bpf_util.h"
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#define CG_PATH "/foo"
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#define MAX_INSNS 512
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char bpf_log_buf[BPF_LOG_BUF_SIZE];
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static bool verbose = false;
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struct sock_test {
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const char *descr;
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/* BPF prog properties */
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struct bpf_insn insns[MAX_INSNS];
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enum bpf_attach_type expected_attach_type;
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enum bpf_attach_type attach_type;
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/* Socket properties */
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int domain;
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int type;
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/* Endpoint to bind() to */
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const char *ip;
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unsigned short port;
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unsigned short port_retry;
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/* Expected test result */
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enum {
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LOAD_REJECT,
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ATTACH_REJECT,
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BIND_REJECT,
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SUCCESS,
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RETRY_SUCCESS,
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RETRY_REJECT
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} result;
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};
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static struct sock_test tests[] = {
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};
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static size_t probe_prog_length(const struct bpf_insn *fp)
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{
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size_t len;
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for (len = MAX_INSNS - 1; len > 0; --len)
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if (fp[len].code != 0 || fp[len].imm != 0)
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break;
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return len + 1;
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}
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static int load_sock_prog(const struct bpf_insn *prog,
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enum bpf_attach_type attach_type)
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{
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LIBBPF_OPTS(bpf_prog_load_opts, opts);
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int ret, insn_cnt;
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insn_cnt = probe_prog_length(prog);
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opts.expected_attach_type = attach_type;
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opts.log_buf = bpf_log_buf;
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opts.log_size = BPF_LOG_BUF_SIZE;
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opts.log_level = 2;
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ret = bpf_prog_load(BPF_PROG_TYPE_CGROUP_SOCK, NULL, "GPL", prog, insn_cnt, &opts);
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if (verbose && ret < 0)
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fprintf(stderr, "%s\n", bpf_log_buf);
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return ret;
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}
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static int attach_sock_prog(int cgfd, int progfd,
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enum bpf_attach_type attach_type)
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{
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return bpf_prog_attach(progfd, cgfd, attach_type, BPF_F_ALLOW_OVERRIDE);
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}
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static int bind_sock(int domain, int type, const char *ip,
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unsigned short port, unsigned short port_retry)
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{
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struct sockaddr_storage addr;
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struct sockaddr_in6 *addr6;
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struct sockaddr_in *addr4;
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int sockfd = -1;
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socklen_t len;
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int res = SUCCESS;
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sockfd = socket(domain, type, 0);
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if (sockfd < 0)
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goto err;
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memset(&addr, 0, sizeof(addr));
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if (domain == AF_INET) {
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len = sizeof(struct sockaddr_in);
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addr4 = (struct sockaddr_in *)&addr;
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addr4->sin_family = domain;
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addr4->sin_port = htons(port);
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if (inet_pton(domain, ip, (void *)&addr4->sin_addr) != 1)
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goto err;
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} else if (domain == AF_INET6) {
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len = sizeof(struct sockaddr_in6);
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addr6 = (struct sockaddr_in6 *)&addr;
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addr6->sin6_family = domain;
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addr6->sin6_port = htons(port);
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if (inet_pton(domain, ip, (void *)&addr6->sin6_addr) != 1)
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goto err;
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} else {
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goto err;
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}
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if (bind(sockfd, (const struct sockaddr *)&addr, len) == -1) {
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/* sys_bind() may fail for different reasons, errno has to be
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* checked to confirm that BPF program rejected it.
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*/
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if (errno != EPERM)
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goto err;
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if (port_retry)
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goto retry;
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res = BIND_REJECT;
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goto out;
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}
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goto out;
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retry:
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if (domain == AF_INET)
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addr4->sin_port = htons(port_retry);
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else
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addr6->sin6_port = htons(port_retry);
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if (bind(sockfd, (const struct sockaddr *)&addr, len) == -1) {
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if (errno != EPERM)
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goto err;
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res = RETRY_REJECT;
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} else {
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res = RETRY_SUCCESS;
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}
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goto out;
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err:
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res = -1;
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out:
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close(sockfd);
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return res;
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}
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static int run_test_case(int cgfd, const struct sock_test *test)
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{
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int progfd = -1;
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int err = 0;
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int res;
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printf("Test case: %s .. ", test->descr);
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progfd = load_sock_prog(test->insns, test->expected_attach_type);
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if (progfd < 0) {
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if (test->result == LOAD_REJECT)
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goto out;
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else
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goto err;
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}
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if (attach_sock_prog(cgfd, progfd, test->attach_type) < 0) {
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if (test->result == ATTACH_REJECT)
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goto out;
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else
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goto err;
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}
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res = bind_sock(test->domain, test->type, test->ip, test->port,
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test->port_retry);
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if (res > 0 && test->result == res)
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goto out;
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err:
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err = -1;
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out:
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/* Detaching w/o checking return code: best effort attempt. */
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if (progfd != -1)
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bpf_prog_detach(cgfd, test->attach_type);
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close(progfd);
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printf("[%s]\n", err ? "FAIL" : "PASS");
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return err;
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}
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static int run_tests(int cgfd)
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{
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int passes = 0;
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int fails = 0;
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int i;
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for (i = 0; i < ARRAY_SIZE(tests); ++i) {
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if (run_test_case(cgfd, &tests[i]))
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++fails;
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else
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++passes;
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}
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printf("Summary: %d PASSED, %d FAILED\n", passes, fails);
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return fails ? -1 : 0;
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}
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int main(int argc, char **argv)
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{
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int cgfd = -1;
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int err = 0;
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cgfd = cgroup_setup_and_join(CG_PATH);
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if (cgfd < 0)
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goto err;
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/* Use libbpf 1.0 API mode */
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libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
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if (run_tests(cgfd))
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goto err;
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goto out;
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err:
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err = -1;
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out:
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close(cgfd);
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cleanup_cgroup_environment();
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return err;
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}
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