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Fixed MTP to work with TWRP

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awab228 2018-06-19 23:16:04 +02:00
commit f6dfaef42e
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14
Documentation/networking/timestamping/Makefile Normal file
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# To compile, from the source root
#
# make headers_install
# make M=documentation
# List of programs to build
hostprogs-y := hwtstamp_config timestamping txtimestamp
# Tell kbuild to always build the programs
always := $(hostprogs-y)
HOSTCFLAGS_timestamping.o += -I$(objtree)/usr/include
HOSTCFLAGS_txtimestamp.o += -I$(objtree)/usr/include
HOSTCFLAGS_hwtstamp_config.o += -I$(objtree)/usr/include

134
Documentation/networking/timestamping/hwtstamp_config.c Normal file
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/* Test program for SIOC{G,S}HWTSTAMP
* Copyright 2013 Solarflare Communications
* Author: Ben Hutchings
*/
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <linux/if.h>
#include <linux/net_tstamp.h>
#include <linux/sockios.h>
static int
lookup_value(const char **names, int size, const char *name)
{
int value;
for (value = 0; value < size; value++)
if (names[value] && strcasecmp(names[value], name) == 0)
return value;
return -1;
}
static const char *
lookup_name(const char **names, int size, int value)
{
return (value >= 0 && value < size) ? names[value] : NULL;
}
static void list_names(FILE *f, const char **names, int size)
{
int value;
for (value = 0; value < size; value++)
if (names[value])
fprintf(f, " %s\n", names[value]);
}
static const char *tx_types[] = {
#define TX_TYPE(name) [HWTSTAMP_TX_ ## name] = #name
TX_TYPE(OFF),
TX_TYPE(ON),
TX_TYPE(ONESTEP_SYNC)
#undef TX_TYPE
};
#define N_TX_TYPES ((int)(sizeof(tx_types) / sizeof(tx_types[0])))
static const char *rx_filters[] = {
#define RX_FILTER(name) [HWTSTAMP_FILTER_ ## name] = #name
RX_FILTER(NONE),
RX_FILTER(ALL),
RX_FILTER(SOME),
RX_FILTER(PTP_V1_L4_EVENT),
RX_FILTER(PTP_V1_L4_SYNC),
RX_FILTER(PTP_V1_L4_DELAY_REQ),
RX_FILTER(PTP_V2_L4_EVENT),
RX_FILTER(PTP_V2_L4_SYNC),
RX_FILTER(PTP_V2_L4_DELAY_REQ),
RX_FILTER(PTP_V2_L2_EVENT),
RX_FILTER(PTP_V2_L2_SYNC),
RX_FILTER(PTP_V2_L2_DELAY_REQ),
RX_FILTER(PTP_V2_EVENT),
RX_FILTER(PTP_V2_SYNC),
RX_FILTER(PTP_V2_DELAY_REQ),
#undef RX_FILTER
};
#define N_RX_FILTERS ((int)(sizeof(rx_filters) / sizeof(rx_filters[0])))
static void usage(void)
{
fputs("Usage: hwtstamp_config if_name [tx_type rx_filter]\n"
"tx_type is any of (case-insensitive):\n",
stderr);
list_names(stderr, tx_types, N_TX_TYPES);
fputs("rx_filter is any of (case-insensitive):\n", stderr);
list_names(stderr, rx_filters, N_RX_FILTERS);
}
int main(int argc, char **argv)
{
struct ifreq ifr;
struct hwtstamp_config config;
const char *name;
int sock;
if ((argc != 2 && argc != 4) || (strlen(argv[1]) >= IFNAMSIZ)) {
usage();
return 2;
}
if (argc == 4) {
config.flags = 0;
config.tx_type = lookup_value(tx_types, N_TX_TYPES, argv[2]);
config.rx_filter = lookup_value(rx_filters, N_RX_FILTERS, argv[3]);
if (config.tx_type < 0 || config.rx_filter < 0) {
usage();
return 2;
}
}
sock = socket(AF_INET, SOCK_DGRAM, 0);
if (sock < 0) {
perror("socket");
return 1;
}
strcpy(ifr.ifr_name, argv[1]);
ifr.ifr_data = (caddr_t)&config;
if (ioctl(sock, (argc == 2) ? SIOCGHWTSTAMP : SIOCSHWTSTAMP, &ifr)) {
perror("ioctl");
return 1;
}
printf("flags = %#x\n", config.flags);
name = lookup_name(tx_types, N_TX_TYPES, config.tx_type);
if (name)
printf("tx_type = %s\n", name);
else
printf("tx_type = %d\n", config.tx_type);
name = lookup_name(rx_filters, N_RX_FILTERS, config.rx_filter);
if (name)
printf("rx_filter = %s\n", name);
else
printf("rx_filter = %d\n", config.rx_filter);
return 0;
}

528
Documentation/networking/timestamping/timestamping.c Normal file
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/*
* This program demonstrates how the various time stamping features in
* the Linux kernel work. It emulates the behavior of a PTP
* implementation in stand-alone master mode by sending PTPv1 Sync
* multicasts once every second. It looks for similar packets, but
* beyond that doesn't actually implement PTP.
*
* Outgoing packets are time stamped with SO_TIMESTAMPING with or
* without hardware support.
*
* Incoming packets are time stamped with SO_TIMESTAMPING with or
* without hardware support, SIOCGSTAMP[NS] (per-socket time stamp) and
* SO_TIMESTAMP[NS].
*
* Copyright (C) 2009 Intel Corporation.
* Author: Patrick Ohly <patrick.ohly@intel.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <sys/select.h>
#include <sys/ioctl.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <asm/types.h>
#include <linux/net_tstamp.h>
#include <linux/errqueue.h>
#ifndef SO_TIMESTAMPING
# define SO_TIMESTAMPING 37
# define SCM_TIMESTAMPING SO_TIMESTAMPING
#endif
#ifndef SO_TIMESTAMPNS
# define SO_TIMESTAMPNS 35
#endif
#ifndef SIOCGSTAMPNS
# define SIOCGSTAMPNS 0x8907
#endif
#ifndef SIOCSHWTSTAMP
# define SIOCSHWTSTAMP 0x89b0
#endif
static void usage(const char *error)
{
if (error)
printf("invalid option: %s\n", error);
printf("timestamping interface option*\n\n"
"Options:\n"
" IP_MULTICAST_LOOP - looping outgoing multicasts\n"
" SO_TIMESTAMP - normal software time stamping, ms resolution\n"
" SO_TIMESTAMPNS - more accurate software time stamping\n"
" SOF_TIMESTAMPING_TX_HARDWARE - hardware time stamping of outgoing packets\n"
" SOF_TIMESTAMPING_TX_SOFTWARE - software fallback for outgoing packets\n"
" SOF_TIMESTAMPING_RX_HARDWARE - hardware time stamping of incoming packets\n"
" SOF_TIMESTAMPING_RX_SOFTWARE - software fallback for incoming packets\n"
" SOF_TIMESTAMPING_SOFTWARE - request reporting of software time stamps\n"
" SOF_TIMESTAMPING_RAW_HARDWARE - request reporting of raw HW time stamps\n"
" SIOCGSTAMP - check last socket time stamp\n"
" SIOCGSTAMPNS - more accurate socket time stamp\n");
exit(1);
}
static void bail(const char *error)
{
printf("%s: %s\n", error, strerror(errno));
exit(1);
}
static const unsigned char sync[] = {
0x00, 0x01, 0x00, 0x01,
0x5f, 0x44, 0x46, 0x4c,
0x54, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x01, 0x01,
/* fake uuid */
0x00, 0x01,
0x02, 0x03, 0x04, 0x05,
0x00, 0x01, 0x00, 0x37,
0x00, 0x00, 0x00, 0x08,
0x00, 0x00, 0x00, 0x00,
0x49, 0x05, 0xcd, 0x01,
0x29, 0xb1, 0x8d, 0xb0,
0x00, 0x00, 0x00, 0x00,
0x00, 0x01,
/* fake uuid */
0x00, 0x01,
0x02, 0x03, 0x04, 0x05,
0x00, 0x00, 0x00, 0x37,
0x00, 0x00, 0x00, 0x04,
0x44, 0x46, 0x4c, 0x54,
0x00, 0x00, 0xf0, 0x60,
0x00, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01,
0x00, 0x00, 0xf0, 0x60,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x04,
0x44, 0x46, 0x4c, 0x54,
0x00, 0x01,
/* fake uuid */
0x00, 0x01,
0x02, 0x03, 0x04, 0x05,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
};
static void sendpacket(int sock, struct sockaddr *addr, socklen_t addr_len)
{
struct timeval now;
int res;
res = sendto(sock, sync, sizeof(sync), 0,
addr, addr_len);
gettimeofday(&now, 0);
if (res < 0)
printf("%s: %s\n", "send", strerror(errno));
else
printf("%ld.%06ld: sent %d bytes\n",
(long)now.tv_sec, (long)now.tv_usec,
res);
}
static void printpacket(struct msghdr *msg, int res,
char *data,
int sock, int recvmsg_flags,
int siocgstamp, int siocgstampns)
{
struct sockaddr_in *from_addr = (struct sockaddr_in *)msg->msg_name;
struct cmsghdr *cmsg;
struct timeval tv;
struct timespec ts;
struct timeval now;
gettimeofday(&now, 0);
printf("%ld.%06ld: received %s data, %d bytes from %s, %zu bytes control messages\n",
(long)now.tv_sec, (long)now.tv_usec,
(recvmsg_flags & MSG_ERRQUEUE) ? "error" : "regular",
res,
inet_ntoa(from_addr->sin_addr),
msg->msg_controllen);
for (cmsg = CMSG_FIRSTHDR(msg);
cmsg;
cmsg = CMSG_NXTHDR(msg, cmsg)) {
printf(" cmsg len %zu: ", cmsg->cmsg_len);
switch (cmsg->cmsg_level) {
case SOL_SOCKET:
printf("SOL_SOCKET ");
switch (cmsg->cmsg_type) {
case SO_TIMESTAMP: {
struct timeval *stamp =
(struct timeval *)CMSG_DATA(cmsg);
printf("SO_TIMESTAMP %ld.%06ld",
(long)stamp->tv_sec,
(long)stamp->tv_usec);
break;
}
case SO_TIMESTAMPNS: {
struct timespec *stamp =
(struct timespec *)CMSG_DATA(cmsg);
printf("SO_TIMESTAMPNS %ld.%09ld",
(long)stamp->tv_sec,
(long)stamp->tv_nsec);
break;
}
case SO_TIMESTAMPING: {
struct timespec *stamp =
(struct timespec *)CMSG_DATA(cmsg);
printf("SO_TIMESTAMPING ");
printf("SW %ld.%09ld ",
(long)stamp->tv_sec,
(long)stamp->tv_nsec);
stamp++;
/* skip deprecated HW transformed */
stamp++;
printf("HW raw %ld.%09ld",
(long)stamp->tv_sec,
(long)stamp->tv_nsec);
break;
}
default:
printf("type %d", cmsg->cmsg_type);
break;
}
break;
case IPPROTO_IP:
printf("IPPROTO_IP ");
switch (cmsg->cmsg_type) {
case IP_RECVERR: {
struct sock_extended_err *err =
(struct sock_extended_err *)CMSG_DATA(cmsg);
printf("IP_RECVERR ee_errno '%s' ee_origin %d => %s",
strerror(err->ee_errno),
err->ee_origin,
#ifdef SO_EE_ORIGIN_TIMESTAMPING
err->ee_origin == SO_EE_ORIGIN_TIMESTAMPING ?
"bounced packet" : "unexpected origin"
#else
"probably SO_EE_ORIGIN_TIMESTAMPING"
#endif
);
if (res < sizeof(sync))
printf(" => truncated data?!");
else if (!memcmp(sync, data + res - sizeof(sync),
sizeof(sync)))
printf(" => GOT OUR DATA BACK (HURRAY!)");
break;
}
case IP_PKTINFO: {
struct in_pktinfo *pktinfo =
(struct in_pktinfo *)CMSG_DATA(cmsg);
printf("IP_PKTINFO interface index %u",
pktinfo->ipi_ifindex);
break;
}
default:
printf("type %d", cmsg->cmsg_type);
break;
}
break;
default:
printf("level %d type %d",
cmsg->cmsg_level,
cmsg->cmsg_type);
break;
}
printf("\n");
}
if (siocgstamp) {
if (ioctl(sock, SIOCGSTAMP, &tv))
printf(" %s: %s\n", "SIOCGSTAMP", strerror(errno));
else
printf("SIOCGSTAMP %ld.%06ld\n",
(long)tv.tv_sec,
(long)tv.tv_usec);
}
if (siocgstampns) {
if (ioctl(sock, SIOCGSTAMPNS, &ts))
printf(" %s: %s\n", "SIOCGSTAMPNS", strerror(errno));
else
printf("SIOCGSTAMPNS %ld.%09ld\n",
(long)ts.tv_sec,
(long)ts.tv_nsec);
}
}
static void recvpacket(int sock, int recvmsg_flags,
int siocgstamp, int siocgstampns)
{
char data[256];
struct msghdr msg;
struct iovec entry;
struct sockaddr_in from_addr;
struct {
struct cmsghdr cm;
char control[512];
} control;
int res;
memset(&msg, 0, sizeof(msg));
msg.msg_iov = &entry;
msg.msg_iovlen = 1;
entry.iov_base = data;
entry.iov_len = sizeof(data);
msg.msg_name = (caddr_t)&from_addr;
msg.msg_namelen = sizeof(from_addr);
msg.msg_control = &control;
msg.msg_controllen = sizeof(control);
res = recvmsg(sock, &msg, recvmsg_flags|MSG_DONTWAIT);
if (res < 0) {
printf("%s %s: %s\n",
"recvmsg",
(recvmsg_flags & MSG_ERRQUEUE) ? "error" : "regular",
strerror(errno));
} else {
printpacket(&msg, res, data,
sock, recvmsg_flags,
siocgstamp, siocgstampns);
}
}
int main(int argc, char **argv)
{
int so_timestamping_flags = 0;
int so_timestamp = 0;
int so_timestampns = 0;
int siocgstamp = 0;
int siocgstampns = 0;
int ip_multicast_loop = 0;
char *interface;
int i;
int enabled = 1;
int sock;
struct ifreq device;
struct ifreq hwtstamp;
struct hwtstamp_config hwconfig, hwconfig_requested;
struct sockaddr_in addr;
struct ip_mreq imr;
struct in_addr iaddr;
int val;
socklen_t len;
struct timeval next;
if (argc < 2)
usage(0);
interface = argv[1];
for (i = 2; i < argc; i++) {
if (!strcasecmp(argv[i], "SO_TIMESTAMP"))
so_timestamp = 1;
else if (!strcasecmp(argv[i], "SO_TIMESTAMPNS"))
so_timestampns = 1;
else if (!strcasecmp(argv[i], "SIOCGSTAMP"))
siocgstamp = 1;
else if (!strcasecmp(argv[i], "SIOCGSTAMPNS"))
siocgstampns = 1;
else if (!strcasecmp(argv[i], "IP_MULTICAST_LOOP"))
ip_multicast_loop = 1;
else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_TX_HARDWARE"))
so_timestamping_flags |= SOF_TIMESTAMPING_TX_HARDWARE;
else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_TX_SOFTWARE"))
so_timestamping_flags |= SOF_TIMESTAMPING_TX_SOFTWARE;
else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RX_HARDWARE"))
so_timestamping_flags |= SOF_TIMESTAMPING_RX_HARDWARE;
else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RX_SOFTWARE"))
so_timestamping_flags |= SOF_TIMESTAMPING_RX_SOFTWARE;
else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_SOFTWARE"))
so_timestamping_flags |= SOF_TIMESTAMPING_SOFTWARE;
else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RAW_HARDWARE"))
so_timestamping_flags |= SOF_TIMESTAMPING_RAW_HARDWARE;
else
usage(argv[i]);
}
sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (sock < 0)
bail("socket");
memset(&device, 0, sizeof(device));
strncpy(device.ifr_name, interface, sizeof(device.ifr_name));
if (ioctl(sock, SIOCGIFADDR, &device) < 0)
bail("getting interface IP address");
memset(&hwtstamp, 0, sizeof(hwtstamp));
strncpy(hwtstamp.ifr_name, interface, sizeof(hwtstamp.ifr_name));
hwtstamp.ifr_data = (void *)&hwconfig;
memset(&hwconfig, 0, sizeof(hwconfig));
hwconfig.tx_type =
(so_timestamping_flags & SOF_TIMESTAMPING_TX_HARDWARE) ?
HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF;
hwconfig.rx_filter =
(so_timestamping_flags & SOF_TIMESTAMPING_RX_HARDWARE) ?
HWTSTAMP_FILTER_PTP_V1_L4_SYNC : HWTSTAMP_FILTER_NONE;
hwconfig_requested = hwconfig;
if (ioctl(sock, SIOCSHWTSTAMP, &hwtstamp) < 0) {
if ((errno == EINVAL || errno == ENOTSUP) &&
hwconfig_requested.tx_type == HWTSTAMP_TX_OFF &&
hwconfig_requested.rx_filter == HWTSTAMP_FILTER_NONE)
printf("SIOCSHWTSTAMP: disabling hardware time stamping not possible\n");
else
bail("SIOCSHWTSTAMP");
}
printf("SIOCSHWTSTAMP: tx_type %d requested, got %d; rx_filter %d requested, got %d\n",
hwconfig_requested.tx_type, hwconfig.tx_type,
hwconfig_requested.rx_filter, hwconfig.rx_filter);
/* bind to PTP port */
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(INADDR_ANY);
addr.sin_port = htons(319 /* PTP event port */);
if (bind(sock,
(struct sockaddr *)&addr,
sizeof(struct sockaddr_in)) < 0)
bail("bind");
/* set multicast group for outgoing packets */
inet_aton("224.0.1.130", &iaddr); /* alternate PTP domain 1 */
addr.sin_addr = iaddr;
imr.imr_multiaddr.s_addr = iaddr.s_addr;
imr.imr_interface.s_addr =
((struct sockaddr_in *)&device.ifr_addr)->sin_addr.s_addr;
if (setsockopt(sock, IPPROTO_IP, IP_MULTICAST_IF,
&imr.imr_interface.s_addr, sizeof(struct in_addr)) < 0)
bail("set multicast");
/* join multicast group, loop our own packet */
if (setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP,
&imr, sizeof(struct ip_mreq)) < 0)
bail("join multicast group");
if (setsockopt(sock, IPPROTO_IP, IP_MULTICAST_LOOP,
&ip_multicast_loop, sizeof(enabled)) < 0) {
bail("loop multicast");
}
/* set socket options for time stamping */
if (so_timestamp &&
setsockopt(sock, SOL_SOCKET, SO_TIMESTAMP,
&enabled, sizeof(enabled)) < 0)
bail("setsockopt SO_TIMESTAMP");
if (so_timestampns &&
setsockopt(sock, SOL_SOCKET, SO_TIMESTAMPNS,
&enabled, sizeof(enabled)) < 0)
bail("setsockopt SO_TIMESTAMPNS");
if (so_timestamping_flags &&
setsockopt(sock, SOL_SOCKET, SO_TIMESTAMPING,
&so_timestamping_flags,
sizeof(so_timestamping_flags)) < 0)
bail("setsockopt SO_TIMESTAMPING");
/* request IP_PKTINFO for debugging purposes */
if (setsockopt(sock, SOL_IP, IP_PKTINFO,
&enabled, sizeof(enabled)) < 0)
printf("%s: %s\n", "setsockopt IP_PKTINFO", strerror(errno));
/* verify socket options */
len = sizeof(val);
if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMP, &val, &len) < 0)
printf("%s: %s\n", "getsockopt SO_TIMESTAMP", strerror(errno));
else
printf("SO_TIMESTAMP %d\n", val);
if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMPNS, &val, &len) < 0)
printf("%s: %s\n", "getsockopt SO_TIMESTAMPNS",
strerror(errno));
else
printf("SO_TIMESTAMPNS %d\n", val);
if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMPING, &val, &len) < 0) {
printf("%s: %s\n", "getsockopt SO_TIMESTAMPING",
strerror(errno));
} else {
printf("SO_TIMESTAMPING %d\n", val);
if (val != so_timestamping_flags)
printf(" not the expected value %d\n",
so_timestamping_flags);
}
/* send packets forever every five seconds */
gettimeofday(&next, 0);
next.tv_sec = (next.tv_sec + 1) / 5 * 5;
next.tv_usec = 0;
while (1) {
struct timeval now;
struct timeval delta;
long delta_us;
int res;
fd_set readfs, errorfs;
gettimeofday(&now, 0);
delta_us = (long)(next.tv_sec - now.tv_sec) * 1000000 +
(long)(next.tv_usec - now.tv_usec);
if (delta_us > 0) {
/* continue waiting for timeout or data */
delta.tv_sec = delta_us / 1000000;
delta.tv_usec = delta_us % 1000000;
FD_ZERO(&readfs);
FD_ZERO(&errorfs);
FD_SET(sock, &readfs);
FD_SET(sock, &errorfs);
printf("%ld.%06ld: select %ldus\n",
(long)now.tv_sec, (long)now.tv_usec,
delta_us);
res = select(sock + 1, &readfs, 0, &errorfs, &delta);
gettimeofday(&now, 0);
printf("%ld.%06ld: select returned: %d, %s\n",
(long)now.tv_sec, (long)now.tv_usec,
res,
res < 0 ? strerror(errno) : "success");
if (res > 0) {
if (FD_ISSET(sock, &readfs))
printf("ready for reading\n");
if (FD_ISSET(sock, &errorfs))
printf("has error\n");
recvpacket(sock, 0,
siocgstamp,
siocgstampns);
recvpacket(sock, MSG_ERRQUEUE,
siocgstamp,
siocgstampns);
}
} else {
/* write one packet */
sendpacket(sock,
(struct sockaddr *)&addr,
sizeof(addr));
next.tv_sec += 5;
continue;
}
}
return 0;
}

469
Documentation/networking/timestamping/txtimestamp.c Normal file
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/*
* 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
*
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <arpa/inet.h>
#include <asm/types.h>
#include <error.h>
#include <errno.h>
#include <linux/errqueue.h>
#include <linux/if_ether.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 <netpacket/packet.h>
#include <poll.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.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>
/* 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 uint16_t dest_port = 9000;
static struct sockaddr_in daddr;
static struct sockaddr_in6 daddr6;
static struct timespec ts_prev;
static void __print_timestamp(const char *name, struct timespec *cur,
uint32_t key, int payload_len)
{
if (!(cur->tv_sec | cur->tv_nsec))
return;
fprintf(stderr, " %s: %lu s %lu us (seq=%u, len=%u)",
name, cur->tv_sec, cur->tv_nsec / 1000,
key, payload_len);
if ((ts_prev.tv_sec | ts_prev.tv_nsec)) {
int64_t cur_ms, prev_ms;
cur_ms = (long) cur->tv_sec * 1000 * 1000;
cur_ms += cur->tv_nsec / 1000;
prev_ms = (long) ts_prev.tv_sec * 1000 * 1000;
prev_ms += ts_prev.tv_nsec / 1000;
fprintf(stderr, " (%+ld us)", cur_ms - prev_ms);
}
ts_prev = *cur;
fprintf(stderr, "\n");
}
static void print_timestamp_usr(void)
{
struct timespec ts;
struct timeval tv; /* avoid dependency on -lrt */
gettimeofday(&tv, NULL);
ts.tv_sec = tv.tv_sec;
ts.tv_nsec = tv.tv_usec * 1000;
__print_timestamp(" USR", &ts, 0, 0);
}
static void print_timestamp(struct scm_timestamping *tss, int tstype,
int tskey, int payload_len)
{
const char *tsname;
switch (tstype) {
case SCM_TSTAMP_SCHED:
tsname = " ENQ";
break;
case SCM_TSTAMP_SND:
tsname = " SND";
break;
case SCM_TSTAMP_ACK:
tsname = " ACK";
break;
default:
error(1, 0, "unknown timestamp type: %u",
tstype);
}
__print_timestamp(tsname, &tss->ts[0], tskey, payload_len);
}
static void __poll(int fd)
{
struct pollfd pollfd;
int ret;
memset(&pollfd, 0, sizeof(pollfd));
pollfd.fd = fd;
ret = poll(&pollfd, 1, 100);
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;
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)) {
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
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);
}
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");
__recv_errmsg_cmsg(&msg, ret);
free(data);
return ret == -1;
}
static void do_test(int family, unsigned int opt)
{
char *buf;
int fd, i, val, total_len;
if (family == IPPROTO_IPV6 && cfg_proto != SOCK_STREAM) {
/* due to lack of checksum generation code */
fprintf(stderr, "test: skipping datagram over IPv6\n");
return;
}
total_len = cfg_payload_len;
if (cfg_proto == SOCK_RAW) {
total_len += sizeof(struct udphdr);
if (cfg_ipproto == IPPROTO_RAW)
total_len += sizeof(struct iphdr);
}
buf = malloc(total_len);
if (!buf)
error(1, 0, "malloc");
fd = socket(family, cfg_proto, cfg_ipproto);
if (fd < 0)
error(1, errno, "socket");
if (cfg_proto == SOCK_STREAM) {
val = 1;
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");
}
}
opt |= SOF_TIMESTAMPING_SOFTWARE |
SOF_TIMESTAMPING_OPT_ID;
if (setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING,
(char *) &opt, sizeof(opt)))
error(1, 0, "setsockopt timestamping");
for (i = 0; i < cfg_num_pkts; i++) {
memset(&ts_prev, 0, sizeof(ts_prev));
memset(buf, 'a' + i, total_len);
buf[total_len - 2] = '\n';
buf[total_len - 1] = '\0';
if (cfg_proto == SOCK_RAW) {
struct udphdr *udph;
int off = 0;
if (cfg_ipproto == IPPROTO_RAW) {
struct iphdr *iph = (void *) buf;
memset(iph, 0, sizeof(*iph));
iph->ihl = 5;
iph->version = 4;
iph->ttl = 2;
iph->daddr = daddr.sin_addr.s_addr;
iph->protocol = IPPROTO_UDP;
/* kernel writes saddr, csum, len */
off = sizeof(*iph);
}
udph = (void *) buf + off;
udph->source = ntohs(9000); /* random spoof */
udph->dest = ntohs(dest_port);
udph->len = ntohs(sizeof(*udph) + cfg_payload_len);
udph->check = 0; /* not allowed for IPv6 */
}
print_timestamp_usr();
if (cfg_proto != SOCK_STREAM) {
if (family == PF_INET)
val = sendto(fd, buf, total_len, 0, (void *) &daddr, sizeof(daddr));
else
val = sendto(fd, buf, total_len, 0, (void *) &daddr6, sizeof(daddr6));
} else {
val = send(fd, buf, cfg_payload_len, 0);
}
if (val != total_len)
error(1, errno, "send");
/* wait for all errors to be queued, else ACKs arrive OOO */
usleep(50 * 1000);
__poll(fd);
while (!recv_errmsg(fd)) {}
}
if (close(fd))
error(1, errno, "close");
free(buf);
usleep(400 * 1000);
}
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"
" -l N: send N bytes at a time\n"
" -r: use raw\n"
" -R: use raw (IP_HDRINCL)\n"
" -p N: connect to port N\n"
" -u: use udp\n",
filepath);
exit(1);
}
static void parse_opt(int argc, char **argv)
{
int proto_count = 0;
char c;
while ((c = getopt(argc, argv, "46hl:p:rRu")) != -1) {
switch (c) {
case '4':
do_ipv6 = 0;
break;
case '6':
do_ipv4 = 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 'u':
proto_count++;
cfg_proto = SOCK_DGRAM;
cfg_ipproto = IPPROTO_UDP;
break;
case 'l':
cfg_payload_len = strtoul(optarg, NULL, 10);
break;
case 'p':
dest_port = strtoul(optarg, NULL, 10);
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 -r, -R or -u, not multiple");
if (optind != argc - 1)
error(1, 0, "missing required hostname argument");
}
static void resolve_hostname(const char *hostname)
{
struct addrinfo *addrs, *cur;
int have_ipv4 = 0, have_ipv6 = 0;
if (getaddrinfo(hostname, NULL, NULL, &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);
do_ipv4 &= have_ipv4;
do_ipv6 &= have_ipv6;
}
static void do_main(int family)
{
fprintf(stderr, "family: %s\n",
family == PF_INET ? "INET" : "INET6");
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)
do_main(PF_INET);
if (do_ipv6)
do_main(PF_INET6);
return 0;
}