From: Geliang Tang <tanggeliang@kylinos.cn>
Delete mptcp_inq binary and references since its functionality has been
fully integrated into mptcp_sockopt. This simplifies the test suite
structure and reduces maintenance overhead.
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
tools/testing/selftests/net/mptcp/.gitignore | 1 -
tools/testing/selftests/net/mptcp/Makefile | 2 +-
tools/testing/selftests/net/mptcp/mptcp_inq.c | 613 ------------------
3 files changed, 1 insertion(+), 615 deletions(-)
delete mode 100644 tools/testing/selftests/net/mptcp/mptcp_inq.c
diff --git a/tools/testing/selftests/net/mptcp/.gitignore b/tools/testing/selftests/net/mptcp/.gitignore
index 833279fb34e2..c62e91ce385d 100644
--- a/tools/testing/selftests/net/mptcp/.gitignore
+++ b/tools/testing/selftests/net/mptcp/.gitignore
@@ -1,7 +1,6 @@
# SPDX-License-Identifier: GPL-2.0-only
mptcp_connect
mptcp_diag
-mptcp_inq
mptcp_sockopt
pm_nl_ctl
*.pcap
diff --git a/tools/testing/selftests/net/mptcp/Makefile b/tools/testing/selftests/net/mptcp/Makefile
index 4c7e51336ab2..9c8da49313fb 100644
--- a/tools/testing/selftests/net/mptcp/Makefile
+++ b/tools/testing/selftests/net/mptcp/Makefile
@@ -8,7 +8,7 @@ TEST_PROGS := mptcp_connect.sh mptcp_connect_mmap.sh mptcp_connect_sendfile.sh \
mptcp_connect_checksum.sh pm_netlink.sh mptcp_join.sh diag.sh \
simult_flows.sh mptcp_sockopt.sh userspace_pm.sh
-TEST_GEN_FILES = mptcp_connect pm_nl_ctl mptcp_sockopt mptcp_inq mptcp_diag
+TEST_GEN_FILES = mptcp_connect pm_nl_ctl mptcp_sockopt mptcp_diag
TEST_FILES := mptcp_lib.sh settings
diff --git a/tools/testing/selftests/net/mptcp/mptcp_inq.c b/tools/testing/selftests/net/mptcp/mptcp_inq.c
deleted file mode 100644
index 8e8f6441ad8b..000000000000
--- a/tools/testing/selftests/net/mptcp/mptcp_inq.c
+++ /dev/null
@@ -1,613 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-
-#define _GNU_SOURCE
-
-#include <assert.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <string.h>
-#include <stdarg.h>
-#include <stdbool.h>
-#include <stdint.h>
-#include <inttypes.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <strings.h>
-#include <unistd.h>
-#include <time.h>
-
-#include <sys/ioctl.h>
-#include <sys/random.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-
-#include <netdb.h>
-#include <netinet/in.h>
-
-#include <linux/tcp.h>
-#include <linux/sockios.h>
-
-#ifndef IPPROTO_MPTCP
-#define IPPROTO_MPTCP 262
-#endif
-#ifndef SOL_MPTCP
-#define SOL_MPTCP 284
-#endif
-
-static int pf = AF_INET;
-static int proto_tx = IPPROTO_MPTCP;
-static int proto_rx = IPPROTO_MPTCP;
-
-static void die_perror(const char *msg)
-{
- perror(msg);
- exit(1);
-}
-
-static void die_usage(int r)
-{
- fprintf(stderr, "Usage: mptcp_inq [-6] [ -t tcp|mptcp ] [ -r tcp|mptcp]\n");
- exit(r);
-}
-
-static void xerror(const char *fmt, ...)
-{
- va_list ap;
-
- va_start(ap, fmt);
- vfprintf(stderr, fmt, ap);
- va_end(ap);
- fputc('\n', stderr);
- exit(1);
-}
-
-static const char *getxinfo_strerr(int err)
-{
- if (err == EAI_SYSTEM)
- return strerror(errno);
-
- return gai_strerror(err);
-}
-
-static void xgetaddrinfo(const char *node, const char *service,
- struct addrinfo *hints,
- struct addrinfo **res)
-{
- int err;
-
-again:
- err = getaddrinfo(node, service, hints, res);
- if (err) {
- const char *errstr;
-
- if (err == EAI_SOCKTYPE) {
- hints->ai_protocol = IPPROTO_TCP;
- goto again;
- }
-
- errstr = getxinfo_strerr(err);
-
- fprintf(stderr, "Fatal: getaddrinfo(%s:%s): %s\n",
- node ? node : "", service ? service : "", errstr);
- exit(1);
- }
-}
-
-static int sock_listen_mptcp(const char * const listenaddr,
- const char * const port)
-{
- int sock = -1;
- struct addrinfo hints = {
- .ai_protocol = IPPROTO_MPTCP,
- .ai_socktype = SOCK_STREAM,
- .ai_flags = AI_PASSIVE | AI_NUMERICHOST
- };
-
- hints.ai_family = pf;
-
- struct addrinfo *a, *addr;
- int one = 1;
-
- xgetaddrinfo(listenaddr, port, &hints, &addr);
- hints.ai_family = pf;
-
- for (a = addr; a; a = a->ai_next) {
- sock = socket(a->ai_family, a->ai_socktype, proto_rx);
- if (sock < 0)
- continue;
-
- if (-1 == setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &one,
- sizeof(one)))
- perror("setsockopt");
-
- if (bind(sock, a->ai_addr, a->ai_addrlen) == 0)
- break; /* success */
-
- perror("bind");
- close(sock);
- sock = -1;
- }
-
- freeaddrinfo(addr);
-
- if (sock < 0)
- xerror("could not create listen socket");
-
- if (listen(sock, 20))
- die_perror("listen");
-
- return sock;
-}
-
-static int sock_connect_mptcp(const char * const remoteaddr,
- const char * const port, int proto)
-{
- struct addrinfo hints = {
- .ai_protocol = IPPROTO_MPTCP,
- .ai_socktype = SOCK_STREAM,
- };
- struct addrinfo *a, *addr;
- int sock = -1;
-
- hints.ai_family = pf;
-
- xgetaddrinfo(remoteaddr, port, &hints, &addr);
- for (a = addr; a; a = a->ai_next) {
- sock = socket(a->ai_family, a->ai_socktype, proto);
- if (sock < 0)
- continue;
-
- if (connect(sock, a->ai_addr, a->ai_addrlen) == 0)
- break; /* success */
-
- die_perror("connect");
- }
-
- if (sock < 0)
- xerror("could not create connect socket");
-
- freeaddrinfo(addr);
- return sock;
-}
-
-static int protostr_to_num(const char *s)
-{
- if (strcasecmp(s, "tcp") == 0)
- return IPPROTO_TCP;
- if (strcasecmp(s, "mptcp") == 0)
- return IPPROTO_MPTCP;
-
- die_usage(1);
- return 0;
-}
-
-static void parse_opts(int argc, char **argv)
-{
- int c;
-
- while ((c = getopt(argc, argv, "h6t:r:")) != -1) {
- switch (c) {
- case 'h':
- die_usage(0);
- break;
- case '6':
- pf = AF_INET6;
- break;
- case 't':
- proto_tx = protostr_to_num(optarg);
- break;
- case 'r':
- proto_rx = protostr_to_num(optarg);
- break;
- default:
- die_usage(1);
- break;
- }
- }
-}
-
-/* wait up to timeout milliseconds */
-static void wait_for_ack(int fd, int timeout, size_t total)
-{
- int i;
-
- for (i = 0; i < timeout; i++) {
- int nsd, ret, queued = -1;
- struct timespec req;
-
- ret = ioctl(fd, TIOCOUTQ, &queued);
- if (ret < 0)
- die_perror("TIOCOUTQ");
-
- ret = ioctl(fd, SIOCOUTQNSD, &nsd);
- if (ret < 0)
- die_perror("SIOCOUTQNSD");
-
- if ((size_t)queued > total)
- xerror("TIOCOUTQ %u, but only %zu expected\n", queued, total);
- assert(nsd <= queued);
-
- if (queued == 0)
- return;
-
- /* wait for peer to ack rx of all data */
- req.tv_sec = 0;
- req.tv_nsec = 1 * 1000 * 1000ul; /* 1ms */
- nanosleep(&req, NULL);
- }
-
- xerror("still tx data queued after %u ms\n", timeout);
-}
-
-static void connect_one_server(int fd, int unixfd)
-{
- size_t len, i, total, sent;
- char buf[4096], buf2[4096];
- ssize_t ret;
-
- len = rand() % (sizeof(buf) - 1);
-
- if (len < 128)
- len = 128;
-
- for (i = 0; i < len ; i++) {
- buf[i] = rand() % 26;
- buf[i] += 'A';
- }
-
- buf[i] = '\n';
-
- /* un-block server */
- ret = read(unixfd, buf2, 4);
- assert(ret == 4);
-
- assert(strncmp(buf2, "xmit", 4) == 0);
-
- ret = write(unixfd, &len, sizeof(len));
- assert(ret == (ssize_t)sizeof(len));
-
- ret = write(fd, buf, len);
- if (ret < 0)
- die_perror("write");
-
- if (ret != (ssize_t)len)
- xerror("short write");
-
- ret = read(unixfd, buf2, 4);
- assert(strncmp(buf2, "huge", 4) == 0);
-
- total = rand() % (16 * 1024 * 1024);
- total += (1 * 1024 * 1024);
- sent = total;
-
- ret = write(unixfd, &total, sizeof(total));
- assert(ret == (ssize_t)sizeof(total));
-
- wait_for_ack(fd, 5000, len);
-
- while (total > 0) {
- if (total > sizeof(buf))
- len = sizeof(buf);
- else
- len = total;
-
- ret = write(fd, buf, len);
- if (ret < 0)
- die_perror("write");
- total -= ret;
-
- /* we don't have to care about buf content, only
- * number of total bytes sent
- */
- }
-
- ret = read(unixfd, buf2, 4);
- assert(ret == 4);
- assert(strncmp(buf2, "shut", 4) == 0);
-
- wait_for_ack(fd, 5000, sent);
-
- ret = write(fd, buf, 1);
- assert(ret == 1);
- close(fd);
- ret = write(unixfd, "closed", 6);
- assert(ret == 6);
-
- close(unixfd);
-}
-
-static void get_tcp_inq(struct msghdr *msgh, unsigned int *inqv)
-{
- struct cmsghdr *cmsg;
-
- for (cmsg = CMSG_FIRSTHDR(msgh); cmsg ; cmsg = CMSG_NXTHDR(msgh, cmsg)) {
- if (cmsg->cmsg_level == IPPROTO_TCP && cmsg->cmsg_type == TCP_CM_INQ) {
- memcpy(inqv, CMSG_DATA(cmsg), sizeof(*inqv));
- return;
- }
- }
-
- xerror("could not find TCP_CM_INQ cmsg type");
-}
-
-static void process_one_client(int fd, int unixfd)
-{
- unsigned int tcp_inq;
- size_t expect_len;
- char msg_buf[4096];
- char buf[4096];
- char tmp[16];
- struct iovec iov = {
- .iov_base = buf,
- .iov_len = 1,
- };
- struct msghdr msg = {
- .msg_iov = &iov,
- .msg_iovlen = 1,
- .msg_control = msg_buf,
- .msg_controllen = sizeof(msg_buf),
- };
- ssize_t ret, tot;
-
- ret = write(unixfd, "xmit", 4);
- assert(ret == 4);
-
- ret = read(unixfd, &expect_len, sizeof(expect_len));
- assert(ret == (ssize_t)sizeof(expect_len));
-
- if (expect_len > sizeof(buf))
- xerror("expect len %zu exceeds buffer size", expect_len);
-
- for (;;) {
- struct timespec req;
- unsigned int queued;
-
- ret = ioctl(fd, FIONREAD, &queued);
- if (ret < 0)
- die_perror("FIONREAD");
- if (queued > expect_len)
- xerror("FIONREAD returned %u, but only %zu expected\n",
- queued, expect_len);
- if (queued == expect_len)
- break;
-
- req.tv_sec = 0;
- req.tv_nsec = 1000 * 1000ul;
- nanosleep(&req, NULL);
- }
-
- /* read one byte, expect cmsg to return expected - 1 */
- ret = recvmsg(fd, &msg, 0);
- if (ret < 0)
- die_perror("recvmsg");
-
- if (msg.msg_controllen == 0)
- xerror("msg_controllen is 0");
-
- get_tcp_inq(&msg, &tcp_inq);
-
- assert((size_t)tcp_inq == (expect_len - 1));
-
- iov.iov_len = sizeof(buf);
- ret = recvmsg(fd, &msg, 0);
- if (ret < 0)
- die_perror("recvmsg");
-
- /* should have gotten exact remainder of all pending data */
- assert(ret == (ssize_t)tcp_inq);
-
- /* should be 0, all drained */
- get_tcp_inq(&msg, &tcp_inq);
- assert(tcp_inq == 0);
-
- /* request a large swath of data. */
- ret = write(unixfd, "huge", 4);
- assert(ret == 4);
-
- ret = read(unixfd, &expect_len, sizeof(expect_len));
- assert(ret == (ssize_t)sizeof(expect_len));
-
- /* peer should send us a few mb of data */
- if (expect_len <= sizeof(buf))
- xerror("expect len %zu too small\n", expect_len);
-
- tot = 0;
- do {
- iov.iov_len = sizeof(buf);
- ret = recvmsg(fd, &msg, 0);
- if (ret < 0)
- die_perror("recvmsg");
-
- tot += ret;
-
- get_tcp_inq(&msg, &tcp_inq);
-
- if (tcp_inq > expect_len - tot)
- xerror("inq %d, remaining %d total_len %d\n",
- tcp_inq, expect_len - tot, (int)expect_len);
-
- assert(tcp_inq <= expect_len - tot);
- } while ((size_t)tot < expect_len);
-
- ret = write(unixfd, "shut", 4);
- assert(ret == 4);
-
- /* wait for hangup. Should have received one more byte of data. */
- ret = read(unixfd, tmp, sizeof(tmp));
- assert(ret == 6);
- assert(strncmp(tmp, "closed", 6) == 0);
-
- sleep(1);
-
- iov.iov_len = 1;
- ret = recvmsg(fd, &msg, 0);
- if (ret < 0)
- die_perror("recvmsg");
- assert(ret == 1);
-
- get_tcp_inq(&msg, &tcp_inq);
-
- /* tcp_inq should be 1 due to received fin. */
- assert(tcp_inq == 1);
-
- iov.iov_len = 1;
- ret = recvmsg(fd, &msg, 0);
- if (ret < 0)
- die_perror("recvmsg");
-
- /* expect EOF */
- assert(ret == 0);
- get_tcp_inq(&msg, &tcp_inq);
- assert(tcp_inq == 1);
-
- close(fd);
-}
-
-static int xaccept(int s)
-{
- int fd = accept(s, NULL, 0);
-
- if (fd < 0)
- die_perror("accept");
-
- return fd;
-}
-
-static int server(int unixfd)
-{
- int fd = -1, r, on = 1;
-
- switch (pf) {
- case AF_INET:
- fd = sock_listen_mptcp("127.0.0.1", "15432");
- break;
- case AF_INET6:
- fd = sock_listen_mptcp("::1", "15432");
- break;
- default:
- xerror("Unknown pf %d\n", pf);
- break;
- }
-
- r = write(unixfd, "conn", 4);
- assert(r == 4);
-
- alarm(15);
- r = xaccept(fd);
-
- if (-1 == setsockopt(r, IPPROTO_TCP, TCP_INQ, &on, sizeof(on)))
- die_perror("setsockopt");
-
- process_one_client(r, unixfd);
-
- close(fd);
- return 0;
-}
-
-static int client(int unixfd)
-{
- int fd = -1;
-
- alarm(15);
-
- switch (pf) {
- case AF_INET:
- fd = sock_connect_mptcp("127.0.0.1", "15432", proto_tx);
- break;
- case AF_INET6:
- fd = sock_connect_mptcp("::1", "15432", proto_tx);
- break;
- default:
- xerror("Unknown pf %d\n", pf);
- }
-
- connect_one_server(fd, unixfd);
-
- return 0;
-}
-
-static void init_rng(void)
-{
- unsigned int foo;
-
- if (getrandom(&foo, sizeof(foo), 0) == -1) {
- perror("getrandom");
- exit(1);
- }
-
- srand(foo);
-}
-
-static pid_t xfork(void)
-{
- pid_t p = fork();
-
- if (p < 0)
- die_perror("fork");
- else if (p == 0)
- init_rng();
-
- return p;
-}
-
-static int rcheck(int wstatus, const char *what)
-{
- if (WIFEXITED(wstatus)) {
- if (WEXITSTATUS(wstatus) == 0)
- return 0;
- fprintf(stderr, "%s exited, status=%d\n", what, WEXITSTATUS(wstatus));
- return WEXITSTATUS(wstatus);
- } else if (WIFSIGNALED(wstatus)) {
- xerror("%s killed by signal %d\n", what, WTERMSIG(wstatus));
- } else if (WIFSTOPPED(wstatus)) {
- xerror("%s stopped by signal %d\n", what, WSTOPSIG(wstatus));
- }
-
- return 111;
-}
-
-int main(int argc, char *argv[])
-{
- int e1, e2, wstatus;
- pid_t s, c, ret;
- int unixfds[2];
-
- parse_opts(argc, argv);
-
- e1 = socketpair(AF_UNIX, SOCK_DGRAM, 0, unixfds);
- if (e1 < 0)
- die_perror("pipe");
-
- s = xfork();
- if (s == 0) {
- close(unixfds[0]);
- ret = server(unixfds[1]);
- close(unixfds[1]);
- return ret;
- }
-
- close(unixfds[1]);
-
- /* wait until server bound a socket */
- e1 = read(unixfds[0], &e1, 4);
- assert(e1 == 4);
-
- c = xfork();
- if (c == 0)
- return client(unixfds[0]);
-
- close(unixfds[0]);
-
- ret = waitpid(s, &wstatus, 0);
- if (ret == -1)
- die_perror("waitpid");
- e1 = rcheck(wstatus, "server");
- ret = waitpid(c, &wstatus, 0);
- if (ret == -1)
- die_perror("waitpid");
- e2 = rcheck(wstatus, "client");
-
- return e1 ? e1 : e2;
-}
--
2.48.1© 2016 - 2025 Red Hat, Inc.