mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-06 02:50:43 +00:00
![Guo Zhengkui](/assets/img/avatar_default.png)
`cur64`, `start64` and `ts_delta` are int64_t. Change format specifiers in fprintf from `"%lu"` to `"%" PRId64` to adapt to 32-bit and 64-bit systems. Signed-off-by: Guo Zhengkui <guozhengkui@vivo.com> Link: https://lore.kernel.org/r/20220319073730.5235-1-guozhengkui@vivo.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
922 lines
22 KiB
C
922 lines
22 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright 2014 Google Inc.
|
|
* Author: willemb@google.com (Willem de Bruijn)
|
|
*
|
|
* Test software tx timestamping, including
|
|
*
|
|
* - SCHED, SND and ACK timestamps
|
|
* - RAW, UDP and TCP
|
|
* - IPv4 and IPv6
|
|
* - various packet sizes (to test GSO and TSO)
|
|
*
|
|
* Consult the command line arguments for help on running
|
|
* the various testcases.
|
|
*
|
|
* This test requires a dummy TCP server.
|
|
* A simple `nc6 [-u] -l -p $DESTPORT` will do
|
|
*/
|
|
|
|
#define _GNU_SOURCE
|
|
|
|
#include <arpa/inet.h>
|
|
#include <asm/types.h>
|
|
#include <error.h>
|
|
#include <errno.h>
|
|
#include <inttypes.h>
|
|
#include <linux/errqueue.h>
|
|
#include <linux/if_ether.h>
|
|
#include <linux/if_packet.h>
|
|
#include <linux/ipv6.h>
|
|
#include <linux/net_tstamp.h>
|
|
#include <netdb.h>
|
|
#include <net/if.h>
|
|
#include <netinet/in.h>
|
|
#include <netinet/ip.h>
|
|
#include <netinet/udp.h>
|
|
#include <netinet/tcp.h>
|
|
#include <poll.h>
|
|
#include <stdarg.h>
|
|
#include <stdbool.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/epoll.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/select.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/time.h>
|
|
#include <sys/types.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
|
|
#define NSEC_PER_USEC 1000L
|
|
#define USEC_PER_SEC 1000000L
|
|
#define NSEC_PER_SEC 1000000000LL
|
|
|
|
/* command line parameters */
|
|
static int cfg_proto = SOCK_STREAM;
|
|
static int cfg_ipproto = IPPROTO_TCP;
|
|
static int cfg_num_pkts = 4;
|
|
static int do_ipv4 = 1;
|
|
static int do_ipv6 = 1;
|
|
static int cfg_payload_len = 10;
|
|
static int cfg_poll_timeout = 100;
|
|
static int cfg_delay_snd;
|
|
static int cfg_delay_ack;
|
|
static int cfg_delay_tolerance_usec = 500;
|
|
static bool cfg_show_payload;
|
|
static bool cfg_do_pktinfo;
|
|
static bool cfg_busy_poll;
|
|
static int cfg_sleep_usec = 50 * 1000;
|
|
static bool cfg_loop_nodata;
|
|
static bool cfg_use_cmsg;
|
|
static bool cfg_use_pf_packet;
|
|
static bool cfg_use_epoll;
|
|
static bool cfg_epollet;
|
|
static bool cfg_do_listen;
|
|
static uint16_t dest_port = 9000;
|
|
static bool cfg_print_nsec;
|
|
|
|
static struct sockaddr_in daddr;
|
|
static struct sockaddr_in6 daddr6;
|
|
static struct timespec ts_usr;
|
|
|
|
static int saved_tskey = -1;
|
|
static int saved_tskey_type = -1;
|
|
|
|
struct timing_event {
|
|
int64_t min;
|
|
int64_t max;
|
|
int64_t total;
|
|
int count;
|
|
};
|
|
|
|
static struct timing_event usr_enq;
|
|
static struct timing_event usr_snd;
|
|
static struct timing_event usr_ack;
|
|
|
|
static bool test_failed;
|
|
|
|
static int64_t timespec_to_ns64(struct timespec *ts)
|
|
{
|
|
return ts->tv_sec * NSEC_PER_SEC + ts->tv_nsec;
|
|
}
|
|
|
|
static int64_t timespec_to_us64(struct timespec *ts)
|
|
{
|
|
return ts->tv_sec * USEC_PER_SEC + ts->tv_nsec / NSEC_PER_USEC;
|
|
}
|
|
|
|
static void init_timing_event(struct timing_event *te)
|
|
{
|
|
te->min = INT64_MAX;
|
|
te->max = 0;
|
|
te->total = 0;
|
|
te->count = 0;
|
|
}
|
|
|
|
static void add_timing_event(struct timing_event *te,
|
|
struct timespec *t_start, struct timespec *t_end)
|
|
{
|
|
int64_t ts_delta = timespec_to_ns64(t_end) - timespec_to_ns64(t_start);
|
|
|
|
te->count++;
|
|
if (ts_delta < te->min)
|
|
te->min = ts_delta;
|
|
if (ts_delta > te->max)
|
|
te->max = ts_delta;
|
|
te->total += ts_delta;
|
|
}
|
|
|
|
static void validate_key(int tskey, int tstype)
|
|
{
|
|
int stepsize;
|
|
|
|
/* compare key for each subsequent request
|
|
* must only test for one type, the first one requested
|
|
*/
|
|
if (saved_tskey == -1)
|
|
saved_tskey_type = tstype;
|
|
else if (saved_tskey_type != tstype)
|
|
return;
|
|
|
|
stepsize = cfg_proto == SOCK_STREAM ? cfg_payload_len : 1;
|
|
if (tskey != saved_tskey + stepsize) {
|
|
fprintf(stderr, "ERROR: key %d, expected %d\n",
|
|
tskey, saved_tskey + stepsize);
|
|
test_failed = true;
|
|
}
|
|
|
|
saved_tskey = tskey;
|
|
}
|
|
|
|
static void validate_timestamp(struct timespec *cur, int min_delay)
|
|
{
|
|
int64_t cur64, start64;
|
|
int max_delay;
|
|
|
|
cur64 = timespec_to_us64(cur);
|
|
start64 = timespec_to_us64(&ts_usr);
|
|
max_delay = min_delay + cfg_delay_tolerance_usec;
|
|
|
|
if (cur64 < start64 + min_delay || cur64 > start64 + max_delay) {
|
|
fprintf(stderr, "ERROR: %" PRId64 " us expected between %d and %d\n",
|
|
cur64 - start64, min_delay, max_delay);
|
|
test_failed = true;
|
|
}
|
|
}
|
|
|
|
static void __print_ts_delta_formatted(int64_t ts_delta)
|
|
{
|
|
if (cfg_print_nsec)
|
|
fprintf(stderr, "%" PRId64 " ns", ts_delta);
|
|
else
|
|
fprintf(stderr, "%" PRId64 " us", ts_delta / NSEC_PER_USEC);
|
|
}
|
|
|
|
static void __print_timestamp(const char *name, struct timespec *cur,
|
|
uint32_t key, int payload_len)
|
|
{
|
|
int64_t ts_delta;
|
|
|
|
if (!(cur->tv_sec | cur->tv_nsec))
|
|
return;
|
|
|
|
if (cfg_print_nsec)
|
|
fprintf(stderr, " %s: %lu s %lu ns (seq=%u, len=%u)",
|
|
name, cur->tv_sec, cur->tv_nsec,
|
|
key, payload_len);
|
|
else
|
|
fprintf(stderr, " %s: %lu s %lu us (seq=%u, len=%u)",
|
|
name, cur->tv_sec, cur->tv_nsec / NSEC_PER_USEC,
|
|
key, payload_len);
|
|
|
|
if (cur != &ts_usr) {
|
|
ts_delta = timespec_to_ns64(cur) - timespec_to_ns64(&ts_usr);
|
|
fprintf(stderr, " (USR +");
|
|
__print_ts_delta_formatted(ts_delta);
|
|
fprintf(stderr, ")");
|
|
}
|
|
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
static void print_timestamp_usr(void)
|
|
{
|
|
if (clock_gettime(CLOCK_REALTIME, &ts_usr))
|
|
error(1, errno, "clock_gettime");
|
|
|
|
__print_timestamp(" USR", &ts_usr, 0, 0);
|
|
}
|
|
|
|
static void print_timestamp(struct scm_timestamping *tss, int tstype,
|
|
int tskey, int payload_len)
|
|
{
|
|
const char *tsname;
|
|
|
|
validate_key(tskey, tstype);
|
|
|
|
switch (tstype) {
|
|
case SCM_TSTAMP_SCHED:
|
|
tsname = " ENQ";
|
|
validate_timestamp(&tss->ts[0], 0);
|
|
add_timing_event(&usr_enq, &ts_usr, &tss->ts[0]);
|
|
break;
|
|
case SCM_TSTAMP_SND:
|
|
tsname = " SND";
|
|
validate_timestamp(&tss->ts[0], cfg_delay_snd);
|
|
add_timing_event(&usr_snd, &ts_usr, &tss->ts[0]);
|
|
break;
|
|
case SCM_TSTAMP_ACK:
|
|
tsname = " ACK";
|
|
validate_timestamp(&tss->ts[0], cfg_delay_ack);
|
|
add_timing_event(&usr_ack, &ts_usr, &tss->ts[0]);
|
|
break;
|
|
default:
|
|
error(1, 0, "unknown timestamp type: %u",
|
|
tstype);
|
|
}
|
|
__print_timestamp(tsname, &tss->ts[0], tskey, payload_len);
|
|
}
|
|
|
|
static void print_timing_event(char *name, struct timing_event *te)
|
|
{
|
|
if (!te->count)
|
|
return;
|
|
|
|
fprintf(stderr, " %s: count=%d", name, te->count);
|
|
fprintf(stderr, ", avg=");
|
|
__print_ts_delta_formatted((int64_t)(te->total / te->count));
|
|
fprintf(stderr, ", min=");
|
|
__print_ts_delta_formatted(te->min);
|
|
fprintf(stderr, ", max=");
|
|
__print_ts_delta_formatted(te->max);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
/* TODO: convert to check_and_print payload once API is stable */
|
|
static void print_payload(char *data, int len)
|
|
{
|
|
int i;
|
|
|
|
if (!len)
|
|
return;
|
|
|
|
if (len > 70)
|
|
len = 70;
|
|
|
|
fprintf(stderr, "payload: ");
|
|
for (i = 0; i < len; i++)
|
|
fprintf(stderr, "%02hhx ", data[i]);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
static void print_pktinfo(int family, int ifindex, void *saddr, void *daddr)
|
|
{
|
|
char sa[INET6_ADDRSTRLEN], da[INET6_ADDRSTRLEN];
|
|
|
|
fprintf(stderr, " pktinfo: ifindex=%u src=%s dst=%s\n",
|
|
ifindex,
|
|
saddr ? inet_ntop(family, saddr, sa, sizeof(sa)) : "unknown",
|
|
daddr ? inet_ntop(family, daddr, da, sizeof(da)) : "unknown");
|
|
}
|
|
|
|
static void __epoll(int epfd)
|
|
{
|
|
struct epoll_event events;
|
|
int ret;
|
|
|
|
memset(&events, 0, sizeof(events));
|
|
ret = epoll_wait(epfd, &events, 1, cfg_poll_timeout);
|
|
if (ret != 1)
|
|
error(1, errno, "epoll_wait");
|
|
}
|
|
|
|
static void __poll(int fd)
|
|
{
|
|
struct pollfd pollfd;
|
|
int ret;
|
|
|
|
memset(&pollfd, 0, sizeof(pollfd));
|
|
pollfd.fd = fd;
|
|
ret = poll(&pollfd, 1, cfg_poll_timeout);
|
|
if (ret != 1)
|
|
error(1, errno, "poll");
|
|
}
|
|
|
|
static void __recv_errmsg_cmsg(struct msghdr *msg, int payload_len)
|
|
{
|
|
struct sock_extended_err *serr = NULL;
|
|
struct scm_timestamping *tss = NULL;
|
|
struct cmsghdr *cm;
|
|
int batch = 0;
|
|
|
|
for (cm = CMSG_FIRSTHDR(msg);
|
|
cm && cm->cmsg_len;
|
|
cm = CMSG_NXTHDR(msg, cm)) {
|
|
if (cm->cmsg_level == SOL_SOCKET &&
|
|
cm->cmsg_type == SCM_TIMESTAMPING) {
|
|
tss = (void *) CMSG_DATA(cm);
|
|
} else if ((cm->cmsg_level == SOL_IP &&
|
|
cm->cmsg_type == IP_RECVERR) ||
|
|
(cm->cmsg_level == SOL_IPV6 &&
|
|
cm->cmsg_type == IPV6_RECVERR) ||
|
|
(cm->cmsg_level == SOL_PACKET &&
|
|
cm->cmsg_type == PACKET_TX_TIMESTAMP)) {
|
|
serr = (void *) CMSG_DATA(cm);
|
|
if (serr->ee_errno != ENOMSG ||
|
|
serr->ee_origin != SO_EE_ORIGIN_TIMESTAMPING) {
|
|
fprintf(stderr, "unknown ip error %d %d\n",
|
|
serr->ee_errno,
|
|
serr->ee_origin);
|
|
serr = NULL;
|
|
}
|
|
} else if (cm->cmsg_level == SOL_IP &&
|
|
cm->cmsg_type == IP_PKTINFO) {
|
|
struct in_pktinfo *info = (void *) CMSG_DATA(cm);
|
|
print_pktinfo(AF_INET, info->ipi_ifindex,
|
|
&info->ipi_spec_dst, &info->ipi_addr);
|
|
} else if (cm->cmsg_level == SOL_IPV6 &&
|
|
cm->cmsg_type == IPV6_PKTINFO) {
|
|
struct in6_pktinfo *info6 = (void *) CMSG_DATA(cm);
|
|
print_pktinfo(AF_INET6, info6->ipi6_ifindex,
|
|
NULL, &info6->ipi6_addr);
|
|
} else
|
|
fprintf(stderr, "unknown cmsg %d,%d\n",
|
|
cm->cmsg_level, cm->cmsg_type);
|
|
|
|
if (serr && tss) {
|
|
print_timestamp(tss, serr->ee_info, serr->ee_data,
|
|
payload_len);
|
|
serr = NULL;
|
|
tss = NULL;
|
|
batch++;
|
|
}
|
|
}
|
|
|
|
if (batch > 1)
|
|
fprintf(stderr, "batched %d timestamps\n", batch);
|
|
}
|
|
|
|
static int recv_errmsg(int fd)
|
|
{
|
|
static char ctrl[1024 /* overprovision*/];
|
|
static struct msghdr msg;
|
|
struct iovec entry;
|
|
static char *data;
|
|
int ret = 0;
|
|
|
|
data = malloc(cfg_payload_len);
|
|
if (!data)
|
|
error(1, 0, "malloc");
|
|
|
|
memset(&msg, 0, sizeof(msg));
|
|
memset(&entry, 0, sizeof(entry));
|
|
memset(ctrl, 0, sizeof(ctrl));
|
|
|
|
entry.iov_base = data;
|
|
entry.iov_len = cfg_payload_len;
|
|
msg.msg_iov = &entry;
|
|
msg.msg_iovlen = 1;
|
|
msg.msg_name = NULL;
|
|
msg.msg_namelen = 0;
|
|
msg.msg_control = ctrl;
|
|
msg.msg_controllen = sizeof(ctrl);
|
|
|
|
ret = recvmsg(fd, &msg, MSG_ERRQUEUE);
|
|
if (ret == -1 && errno != EAGAIN)
|
|
error(1, errno, "recvmsg");
|
|
|
|
if (ret >= 0) {
|
|
__recv_errmsg_cmsg(&msg, ret);
|
|
if (cfg_show_payload)
|
|
print_payload(data, cfg_payload_len);
|
|
}
|
|
|
|
free(data);
|
|
return ret == -1;
|
|
}
|
|
|
|
static uint16_t get_ip_csum(const uint16_t *start, int num_words,
|
|
unsigned long sum)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < num_words; i++)
|
|
sum += start[i];
|
|
|
|
while (sum >> 16)
|
|
sum = (sum & 0xFFFF) + (sum >> 16);
|
|
|
|
return ~sum;
|
|
}
|
|
|
|
static uint16_t get_udp_csum(const struct udphdr *udph, int alen)
|
|
{
|
|
unsigned long pseudo_sum, csum_len;
|
|
const void *csum_start = udph;
|
|
|
|
pseudo_sum = htons(IPPROTO_UDP);
|
|
pseudo_sum += udph->len;
|
|
|
|
/* checksum ip(v6) addresses + udp header + payload */
|
|
csum_start -= alen * 2;
|
|
csum_len = ntohs(udph->len) + alen * 2;
|
|
|
|
return get_ip_csum(csum_start, csum_len >> 1, pseudo_sum);
|
|
}
|
|
|
|
static int fill_header_ipv4(void *p)
|
|
{
|
|
struct iphdr *iph = p;
|
|
|
|
memset(iph, 0, sizeof(*iph));
|
|
|
|
iph->ihl = 5;
|
|
iph->version = 4;
|
|
iph->ttl = 2;
|
|
iph->saddr = daddr.sin_addr.s_addr; /* set for udp csum calc */
|
|
iph->daddr = daddr.sin_addr.s_addr;
|
|
iph->protocol = IPPROTO_UDP;
|
|
|
|
/* kernel writes saddr, csum, len */
|
|
|
|
return sizeof(*iph);
|
|
}
|
|
|
|
static int fill_header_ipv6(void *p)
|
|
{
|
|
struct ipv6hdr *ip6h = p;
|
|
|
|
memset(ip6h, 0, sizeof(*ip6h));
|
|
|
|
ip6h->version = 6;
|
|
ip6h->payload_len = htons(sizeof(struct udphdr) + cfg_payload_len);
|
|
ip6h->nexthdr = IPPROTO_UDP;
|
|
ip6h->hop_limit = 64;
|
|
|
|
ip6h->saddr = daddr6.sin6_addr;
|
|
ip6h->daddr = daddr6.sin6_addr;
|
|
|
|
/* kernel does not write saddr in case of ipv6 */
|
|
|
|
return sizeof(*ip6h);
|
|
}
|
|
|
|
static void fill_header_udp(void *p, bool is_ipv4)
|
|
{
|
|
struct udphdr *udph = p;
|
|
|
|
udph->source = ntohs(dest_port + 1); /* spoof */
|
|
udph->dest = ntohs(dest_port);
|
|
udph->len = ntohs(sizeof(*udph) + cfg_payload_len);
|
|
udph->check = 0;
|
|
|
|
udph->check = get_udp_csum(udph, is_ipv4 ? sizeof(struct in_addr) :
|
|
sizeof(struct in6_addr));
|
|
}
|
|
|
|
static void do_test(int family, unsigned int report_opt)
|
|
{
|
|
char control[CMSG_SPACE(sizeof(uint32_t))];
|
|
struct sockaddr_ll laddr;
|
|
unsigned int sock_opt;
|
|
struct cmsghdr *cmsg;
|
|
struct msghdr msg;
|
|
struct iovec iov;
|
|
char *buf;
|
|
int fd, i, val = 1, total_len, epfd = 0;
|
|
|
|
init_timing_event(&usr_enq);
|
|
init_timing_event(&usr_snd);
|
|
init_timing_event(&usr_ack);
|
|
|
|
total_len = cfg_payload_len;
|
|
if (cfg_use_pf_packet || cfg_proto == SOCK_RAW) {
|
|
total_len += sizeof(struct udphdr);
|
|
if (cfg_use_pf_packet || cfg_ipproto == IPPROTO_RAW) {
|
|
if (family == PF_INET)
|
|
total_len += sizeof(struct iphdr);
|
|
else
|
|
total_len += sizeof(struct ipv6hdr);
|
|
}
|
|
/* special case, only rawv6_sendmsg:
|
|
* pass proto in sin6_port if not connected
|
|
* also see ANK comment in net/ipv4/raw.c
|
|
*/
|
|
daddr6.sin6_port = htons(cfg_ipproto);
|
|
}
|
|
|
|
buf = malloc(total_len);
|
|
if (!buf)
|
|
error(1, 0, "malloc");
|
|
|
|
fd = socket(cfg_use_pf_packet ? PF_PACKET : family,
|
|
cfg_proto, cfg_ipproto);
|
|
if (fd < 0)
|
|
error(1, errno, "socket");
|
|
|
|
if (cfg_use_epoll) {
|
|
struct epoll_event ev;
|
|
|
|
memset(&ev, 0, sizeof(ev));
|
|
ev.data.fd = fd;
|
|
if (cfg_epollet)
|
|
ev.events |= EPOLLET;
|
|
epfd = epoll_create(1);
|
|
if (epfd <= 0)
|
|
error(1, errno, "epoll_create");
|
|
if (epoll_ctl(epfd, EPOLL_CTL_ADD, fd, &ev))
|
|
error(1, errno, "epoll_ctl");
|
|
}
|
|
|
|
/* reset expected key on each new socket */
|
|
saved_tskey = -1;
|
|
|
|
if (cfg_proto == SOCK_STREAM) {
|
|
if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY,
|
|
(char*) &val, sizeof(val)))
|
|
error(1, 0, "setsockopt no nagle");
|
|
|
|
if (family == PF_INET) {
|
|
if (connect(fd, (void *) &daddr, sizeof(daddr)))
|
|
error(1, errno, "connect ipv4");
|
|
} else {
|
|
if (connect(fd, (void *) &daddr6, sizeof(daddr6)))
|
|
error(1, errno, "connect ipv6");
|
|
}
|
|
}
|
|
|
|
if (cfg_do_pktinfo) {
|
|
if (family == AF_INET6) {
|
|
if (setsockopt(fd, SOL_IPV6, IPV6_RECVPKTINFO,
|
|
&val, sizeof(val)))
|
|
error(1, errno, "setsockopt pktinfo ipv6");
|
|
} else {
|
|
if (setsockopt(fd, SOL_IP, IP_PKTINFO,
|
|
&val, sizeof(val)))
|
|
error(1, errno, "setsockopt pktinfo ipv4");
|
|
}
|
|
}
|
|
|
|
sock_opt = SOF_TIMESTAMPING_SOFTWARE |
|
|
SOF_TIMESTAMPING_OPT_CMSG |
|
|
SOF_TIMESTAMPING_OPT_ID;
|
|
|
|
if (!cfg_use_cmsg)
|
|
sock_opt |= report_opt;
|
|
|
|
if (cfg_loop_nodata)
|
|
sock_opt |= SOF_TIMESTAMPING_OPT_TSONLY;
|
|
|
|
if (setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING,
|
|
(char *) &sock_opt, sizeof(sock_opt)))
|
|
error(1, 0, "setsockopt timestamping");
|
|
|
|
for (i = 0; i < cfg_num_pkts; i++) {
|
|
memset(&msg, 0, sizeof(msg));
|
|
memset(buf, 'a' + i, total_len);
|
|
|
|
if (cfg_use_pf_packet || cfg_proto == SOCK_RAW) {
|
|
int off = 0;
|
|
|
|
if (cfg_use_pf_packet || cfg_ipproto == IPPROTO_RAW) {
|
|
if (family == PF_INET)
|
|
off = fill_header_ipv4(buf);
|
|
else
|
|
off = fill_header_ipv6(buf);
|
|
}
|
|
|
|
fill_header_udp(buf + off, family == PF_INET);
|
|
}
|
|
|
|
print_timestamp_usr();
|
|
|
|
iov.iov_base = buf;
|
|
iov.iov_len = total_len;
|
|
|
|
if (cfg_proto != SOCK_STREAM) {
|
|
if (cfg_use_pf_packet) {
|
|
memset(&laddr, 0, sizeof(laddr));
|
|
|
|
laddr.sll_family = AF_PACKET;
|
|
laddr.sll_ifindex = 1;
|
|
laddr.sll_protocol = htons(family == AF_INET ? ETH_P_IP : ETH_P_IPV6);
|
|
laddr.sll_halen = ETH_ALEN;
|
|
|
|
msg.msg_name = (void *)&laddr;
|
|
msg.msg_namelen = sizeof(laddr);
|
|
} else if (family == PF_INET) {
|
|
msg.msg_name = (void *)&daddr;
|
|
msg.msg_namelen = sizeof(daddr);
|
|
} else {
|
|
msg.msg_name = (void *)&daddr6;
|
|
msg.msg_namelen = sizeof(daddr6);
|
|
}
|
|
}
|
|
|
|
msg.msg_iov = &iov;
|
|
msg.msg_iovlen = 1;
|
|
|
|
if (cfg_use_cmsg) {
|
|
memset(control, 0, sizeof(control));
|
|
|
|
msg.msg_control = control;
|
|
msg.msg_controllen = sizeof(control);
|
|
|
|
cmsg = CMSG_FIRSTHDR(&msg);
|
|
cmsg->cmsg_level = SOL_SOCKET;
|
|
cmsg->cmsg_type = SO_TIMESTAMPING;
|
|
cmsg->cmsg_len = CMSG_LEN(sizeof(uint32_t));
|
|
|
|
*((uint32_t *) CMSG_DATA(cmsg)) = report_opt;
|
|
}
|
|
|
|
val = sendmsg(fd, &msg, 0);
|
|
if (val != total_len)
|
|
error(1, errno, "send");
|
|
|
|
/* wait for all errors to be queued, else ACKs arrive OOO */
|
|
if (cfg_sleep_usec)
|
|
usleep(cfg_sleep_usec);
|
|
|
|
if (!cfg_busy_poll) {
|
|
if (cfg_use_epoll)
|
|
__epoll(epfd);
|
|
else
|
|
__poll(fd);
|
|
}
|
|
|
|
while (!recv_errmsg(fd)) {}
|
|
}
|
|
|
|
print_timing_event("USR-ENQ", &usr_enq);
|
|
print_timing_event("USR-SND", &usr_snd);
|
|
print_timing_event("USR-ACK", &usr_ack);
|
|
|
|
if (close(fd))
|
|
error(1, errno, "close");
|
|
|
|
free(buf);
|
|
usleep(100 * NSEC_PER_USEC);
|
|
}
|
|
|
|
static void __attribute__((noreturn)) usage(const char *filepath)
|
|
{
|
|
fprintf(stderr, "\nUsage: %s [options] hostname\n"
|
|
"\nwhere options are:\n"
|
|
" -4: only IPv4\n"
|
|
" -6: only IPv6\n"
|
|
" -h: show this message\n"
|
|
" -b: busy poll to read from error queue\n"
|
|
" -c N: number of packets for each test\n"
|
|
" -C: use cmsg to set tstamp recording options\n"
|
|
" -e: use level-triggered epoll() instead of poll()\n"
|
|
" -E: use event-triggered epoll() instead of poll()\n"
|
|
" -F: poll()/epoll() waits forever for an event\n"
|
|
" -I: request PKTINFO\n"
|
|
" -l N: send N bytes at a time\n"
|
|
" -L listen on hostname and port\n"
|
|
" -n: set no-payload option\n"
|
|
" -N: print timestamps and durations in nsec (instead of usec)\n"
|
|
" -p N: connect to port N\n"
|
|
" -P: use PF_PACKET\n"
|
|
" -r: use raw\n"
|
|
" -R: use raw (IP_HDRINCL)\n"
|
|
" -S N: usec to sleep before reading error queue\n"
|
|
" -t N: tolerance (usec) for timestamp validation\n"
|
|
" -u: use udp\n"
|
|
" -v: validate SND delay (usec)\n"
|
|
" -V: validate ACK delay (usec)\n"
|
|
" -x: show payload (up to 70 bytes)\n",
|
|
filepath);
|
|
exit(1);
|
|
}
|
|
|
|
static void parse_opt(int argc, char **argv)
|
|
{
|
|
int proto_count = 0;
|
|
int c;
|
|
|
|
while ((c = getopt(argc, argv,
|
|
"46bc:CeEFhIl:LnNp:PrRS:t:uv:V:x")) != -1) {
|
|
switch (c) {
|
|
case '4':
|
|
do_ipv6 = 0;
|
|
break;
|
|
case '6':
|
|
do_ipv4 = 0;
|
|
break;
|
|
case 'b':
|
|
cfg_busy_poll = true;
|
|
break;
|
|
case 'c':
|
|
cfg_num_pkts = strtoul(optarg, NULL, 10);
|
|
break;
|
|
case 'C':
|
|
cfg_use_cmsg = true;
|
|
break;
|
|
case 'e':
|
|
cfg_use_epoll = true;
|
|
break;
|
|
case 'E':
|
|
cfg_use_epoll = true;
|
|
cfg_epollet = true;
|
|
case 'F':
|
|
cfg_poll_timeout = -1;
|
|
break;
|
|
case 'I':
|
|
cfg_do_pktinfo = true;
|
|
break;
|
|
case 'l':
|
|
cfg_payload_len = strtoul(optarg, NULL, 10);
|
|
break;
|
|
case 'L':
|
|
cfg_do_listen = true;
|
|
break;
|
|
case 'n':
|
|
cfg_loop_nodata = true;
|
|
break;
|
|
case 'N':
|
|
cfg_print_nsec = true;
|
|
break;
|
|
case 'p':
|
|
dest_port = strtoul(optarg, NULL, 10);
|
|
break;
|
|
case 'P':
|
|
proto_count++;
|
|
cfg_use_pf_packet = true;
|
|
cfg_proto = SOCK_DGRAM;
|
|
cfg_ipproto = 0;
|
|
break;
|
|
case 'r':
|
|
proto_count++;
|
|
cfg_proto = SOCK_RAW;
|
|
cfg_ipproto = IPPROTO_UDP;
|
|
break;
|
|
case 'R':
|
|
proto_count++;
|
|
cfg_proto = SOCK_RAW;
|
|
cfg_ipproto = IPPROTO_RAW;
|
|
break;
|
|
case 'S':
|
|
cfg_sleep_usec = strtoul(optarg, NULL, 10);
|
|
break;
|
|
case 't':
|
|
cfg_delay_tolerance_usec = strtoul(optarg, NULL, 10);
|
|
break;
|
|
case 'u':
|
|
proto_count++;
|
|
cfg_proto = SOCK_DGRAM;
|
|
cfg_ipproto = IPPROTO_UDP;
|
|
break;
|
|
case 'v':
|
|
cfg_delay_snd = strtoul(optarg, NULL, 10);
|
|
break;
|
|
case 'V':
|
|
cfg_delay_ack = strtoul(optarg, NULL, 10);
|
|
break;
|
|
case 'x':
|
|
cfg_show_payload = true;
|
|
break;
|
|
case 'h':
|
|
default:
|
|
usage(argv[0]);
|
|
}
|
|
}
|
|
|
|
if (!cfg_payload_len)
|
|
error(1, 0, "payload may not be nonzero");
|
|
if (cfg_proto != SOCK_STREAM && cfg_payload_len > 1472)
|
|
error(1, 0, "udp packet might exceed expected MTU");
|
|
if (!do_ipv4 && !do_ipv6)
|
|
error(1, 0, "pass -4 or -6, not both");
|
|
if (proto_count > 1)
|
|
error(1, 0, "pass -P, -r, -R or -u, not multiple");
|
|
if (cfg_do_pktinfo && cfg_use_pf_packet)
|
|
error(1, 0, "cannot ask for pktinfo over pf_packet");
|
|
if (cfg_busy_poll && cfg_use_epoll)
|
|
error(1, 0, "pass epoll or busy_poll, not both");
|
|
|
|
if (optind != argc - 1)
|
|
error(1, 0, "missing required hostname argument");
|
|
}
|
|
|
|
static void resolve_hostname(const char *hostname)
|
|
{
|
|
struct addrinfo hints = { .ai_family = do_ipv4 ? AF_INET : AF_INET6 };
|
|
struct addrinfo *addrs, *cur;
|
|
int have_ipv4 = 0, have_ipv6 = 0;
|
|
|
|
retry:
|
|
if (getaddrinfo(hostname, NULL, &hints, &addrs))
|
|
error(1, errno, "getaddrinfo");
|
|
|
|
cur = addrs;
|
|
while (cur && !have_ipv4 && !have_ipv6) {
|
|
if (!have_ipv4 && cur->ai_family == AF_INET) {
|
|
memcpy(&daddr, cur->ai_addr, sizeof(daddr));
|
|
daddr.sin_port = htons(dest_port);
|
|
have_ipv4 = 1;
|
|
}
|
|
else if (!have_ipv6 && cur->ai_family == AF_INET6) {
|
|
memcpy(&daddr6, cur->ai_addr, sizeof(daddr6));
|
|
daddr6.sin6_port = htons(dest_port);
|
|
have_ipv6 = 1;
|
|
}
|
|
cur = cur->ai_next;
|
|
}
|
|
if (addrs)
|
|
freeaddrinfo(addrs);
|
|
|
|
if (do_ipv6 && hints.ai_family != AF_INET6) {
|
|
hints.ai_family = AF_INET6;
|
|
goto retry;
|
|
}
|
|
|
|
do_ipv4 &= have_ipv4;
|
|
do_ipv6 &= have_ipv6;
|
|
}
|
|
|
|
static void do_listen(int family, void *addr, int alen)
|
|
{
|
|
int fd, type;
|
|
|
|
type = cfg_proto == SOCK_RAW ? SOCK_DGRAM : cfg_proto;
|
|
|
|
fd = socket(family, type, 0);
|
|
if (fd == -1)
|
|
error(1, errno, "socket rx");
|
|
|
|
if (bind(fd, addr, alen))
|
|
error(1, errno, "bind rx");
|
|
|
|
if (type == SOCK_STREAM && listen(fd, 10))
|
|
error(1, errno, "listen rx");
|
|
|
|
/* leave fd open, will be closed on process exit.
|
|
* this enables connect() to succeed and avoids icmp replies
|
|
*/
|
|
}
|
|
|
|
static void do_main(int family)
|
|
{
|
|
fprintf(stderr, "family: %s %s\n",
|
|
family == PF_INET ? "INET" : "INET6",
|
|
cfg_use_pf_packet ? "(PF_PACKET)" : "");
|
|
|
|
fprintf(stderr, "test SND\n");
|
|
do_test(family, SOF_TIMESTAMPING_TX_SOFTWARE);
|
|
|
|
fprintf(stderr, "test ENQ\n");
|
|
do_test(family, SOF_TIMESTAMPING_TX_SCHED);
|
|
|
|
fprintf(stderr, "test ENQ + SND\n");
|
|
do_test(family, SOF_TIMESTAMPING_TX_SCHED |
|
|
SOF_TIMESTAMPING_TX_SOFTWARE);
|
|
|
|
if (cfg_proto == SOCK_STREAM) {
|
|
fprintf(stderr, "\ntest ACK\n");
|
|
do_test(family, SOF_TIMESTAMPING_TX_ACK);
|
|
|
|
fprintf(stderr, "\ntest SND + ACK\n");
|
|
do_test(family, SOF_TIMESTAMPING_TX_SOFTWARE |
|
|
SOF_TIMESTAMPING_TX_ACK);
|
|
|
|
fprintf(stderr, "\ntest ENQ + SND + ACK\n");
|
|
do_test(family, SOF_TIMESTAMPING_TX_SCHED |
|
|
SOF_TIMESTAMPING_TX_SOFTWARE |
|
|
SOF_TIMESTAMPING_TX_ACK);
|
|
}
|
|
}
|
|
|
|
const char *sock_names[] = { NULL, "TCP", "UDP", "RAW" };
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
if (argc == 1)
|
|
usage(argv[0]);
|
|
|
|
parse_opt(argc, argv);
|
|
resolve_hostname(argv[argc - 1]);
|
|
|
|
fprintf(stderr, "protocol: %s\n", sock_names[cfg_proto]);
|
|
fprintf(stderr, "payload: %u\n", cfg_payload_len);
|
|
fprintf(stderr, "server port: %u\n", dest_port);
|
|
fprintf(stderr, "\n");
|
|
|
|
if (do_ipv4) {
|
|
if (cfg_do_listen)
|
|
do_listen(PF_INET, &daddr, sizeof(daddr));
|
|
do_main(PF_INET);
|
|
}
|
|
|
|
if (do_ipv6) {
|
|
if (cfg_do_listen)
|
|
do_listen(PF_INET6, &daddr6, sizeof(daddr6));
|
|
do_main(PF_INET6);
|
|
}
|
|
|
|
return test_failed;
|
|
}
|