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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
net_tstamp,doc: Add test program for SIOC{G,S}HWTSTAMP
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
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Documentation/networking/timestamping/Makefile
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Documentation/networking/timestamping/Makefile
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obj- := dummy.o
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# List of programs to build
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hostprogs-y := timestamping
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hostprogs-y := timestamping hwtstamp_config
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# Tell kbuild to always build the programs
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always := $(hostprogs-y)
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HOSTCFLAGS_timestamping.o += -I$(objtree)/usr/include
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HOSTCFLAGS_hwtstamp_config.o += -I$(objtree)/usr/include
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clean:
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rm -f timestamping
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rm -f timestamping hwtstamp_config
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Documentation/networking/timestamping/hwtstamp_config.c
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Documentation/networking/timestamping/hwtstamp_config.c
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/* Test program for SIOC{G,S}HWTSTAMP
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* Copyright 2013 Solarflare Communications
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* Author: Ben Hutchings
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <linux/if.h>
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#include <linux/net_tstamp.h>
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#include <linux/sockios.h>
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static int
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lookup_value(const char **names, int size, const char *name)
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{
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int value;
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for (value = 0; value < size; value++)
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if (names[value] && strcasecmp(names[value], name) == 0)
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return value;
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return -1;
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}
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static const char *
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lookup_name(const char **names, int size, int value)
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{
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return (value >= 0 && value < size) ? names[value] : NULL;
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}
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static void list_names(FILE *f, const char **names, int size)
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{
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int value;
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for (value = 0; value < size; value++)
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if (names[value])
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fprintf(f, " %s\n", names[value]);
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}
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static const char *tx_types[] = {
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#define TX_TYPE(name) [HWTSTAMP_TX_ ## name] = #name
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TX_TYPE(OFF),
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TX_TYPE(ON),
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TX_TYPE(ONESTEP_SYNC)
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#undef TX_TYPE
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};
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#define N_TX_TYPES ((int)(sizeof(tx_types) / sizeof(tx_types[0])))
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static const char *rx_filters[] = {
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#define RX_FILTER(name) [HWTSTAMP_FILTER_ ## name] = #name
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RX_FILTER(NONE),
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RX_FILTER(ALL),
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RX_FILTER(SOME),
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RX_FILTER(PTP_V1_L4_EVENT),
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RX_FILTER(PTP_V1_L4_SYNC),
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RX_FILTER(PTP_V1_L4_DELAY_REQ),
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RX_FILTER(PTP_V2_L4_EVENT),
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RX_FILTER(PTP_V2_L4_SYNC),
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RX_FILTER(PTP_V2_L4_DELAY_REQ),
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RX_FILTER(PTP_V2_L2_EVENT),
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RX_FILTER(PTP_V2_L2_SYNC),
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RX_FILTER(PTP_V2_L2_DELAY_REQ),
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RX_FILTER(PTP_V2_EVENT),
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RX_FILTER(PTP_V2_SYNC),
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RX_FILTER(PTP_V2_DELAY_REQ),
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#undef RX_FILTER
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};
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#define N_RX_FILTERS ((int)(sizeof(rx_filters) / sizeof(rx_filters[0])))
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static void usage(void)
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{
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fputs("Usage: hwtstamp_config if_name [tx_type rx_filter]\n"
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"tx_type is any of (case-insensitive):\n",
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stderr);
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list_names(stderr, tx_types, N_TX_TYPES);
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fputs("rx_filter is any of (case-insensitive):\n", stderr);
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list_names(stderr, rx_filters, N_RX_FILTERS);
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}
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int main(int argc, char **argv)
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{
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struct ifreq ifr;
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struct hwtstamp_config config;
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const char *name;
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int sock;
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if ((argc != 2 && argc != 4) || (strlen(argv[1]) >= IFNAMSIZ)) {
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usage();
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return 2;
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}
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if (argc == 4) {
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config.flags = 0;
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config.tx_type = lookup_value(tx_types, N_TX_TYPES, argv[2]);
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config.rx_filter = lookup_value(rx_filters, N_RX_FILTERS, argv[3]);
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if (config.tx_type < 0 || config.rx_filter < 0) {
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usage();
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return 2;
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}
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}
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sock = socket(AF_INET, SOCK_DGRAM, 0);
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if (sock < 0) {
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perror("socket");
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return 1;
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}
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strcpy(ifr.ifr_name, argv[1]);
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ifr.ifr_data = (caddr_t)&config;
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if (ioctl(sock, (argc == 2) ? SIOCGHWTSTAMP : SIOCSHWTSTAMP, &ifr)) {
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perror("ioctl");
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return 1;
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}
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printf("flags = %#x\n", config.flags);
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name = lookup_name(tx_types, N_TX_TYPES, config.tx_type);
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if (name)
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printf("tx_type = %s\n", name);
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else
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printf("tx_type = %d\n", config.tx_type);
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name = lookup_name(rx_filters, N_RX_FILTERS, config.rx_filter);
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if (name)
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printf("rx_filter = %s\n", name);
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else
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printf("rx_filter = %d\n", config.rx_filter);
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return 0;
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}