1 /* Test program for SIOC{G,S}HWTSTAMP
2 * Copyright 2013 Solarflare Communications
3 * Author: Ben Hutchings
11 #include <sys/socket.h>
12 #include <sys/ioctl.h>
15 #include <linux/net_tstamp.h>
16 #include <linux/sockios.h>
19 lookup_value(const char **names, int size, const char *name)
23 for (value = 0; value < size; value++)
24 if (names[value] && strcasecmp(names[value], name) == 0)
31 lookup_name(const char **names, int size, int value)
33 return (value >= 0 && value < size) ? names[value] : NULL;
36 static void list_names(FILE *f, const char **names, int size)
40 for (value = 0; value < size; value++)
42 fprintf(f, " %s\n", names[value]);
45 static const char *tx_types[] = {
46 #define TX_TYPE(name) [HWTSTAMP_TX_ ## name] = #name
52 #define N_TX_TYPES ((int)(sizeof(tx_types) / sizeof(tx_types[0])))
54 static const char *rx_filters[] = {
55 #define RX_FILTER(name) [HWTSTAMP_FILTER_ ## name] = #name
59 RX_FILTER(PTP_V1_L4_EVENT),
60 RX_FILTER(PTP_V1_L4_SYNC),
61 RX_FILTER(PTP_V1_L4_DELAY_REQ),
62 RX_FILTER(PTP_V2_L4_EVENT),
63 RX_FILTER(PTP_V2_L4_SYNC),
64 RX_FILTER(PTP_V2_L4_DELAY_REQ),
65 RX_FILTER(PTP_V2_L2_EVENT),
66 RX_FILTER(PTP_V2_L2_SYNC),
67 RX_FILTER(PTP_V2_L2_DELAY_REQ),
68 RX_FILTER(PTP_V2_EVENT),
69 RX_FILTER(PTP_V2_SYNC),
70 RX_FILTER(PTP_V2_DELAY_REQ),
73 #define N_RX_FILTERS ((int)(sizeof(rx_filters) / sizeof(rx_filters[0])))
75 static void usage(void)
77 fputs("Usage: hwtstamp_config if_name [tx_type rx_filter]\n"
78 "tx_type is any of (case-insensitive):\n",
80 list_names(stderr, tx_types, N_TX_TYPES);
81 fputs("rx_filter is any of (case-insensitive):\n", stderr);
82 list_names(stderr, rx_filters, N_RX_FILTERS);
85 int main(int argc, char **argv)
88 struct hwtstamp_config config;
92 if ((argc != 2 && argc != 4) || (strlen(argv[1]) >= IFNAMSIZ)) {
99 config.tx_type = lookup_value(tx_types, N_TX_TYPES, argv[2]);
100 config.rx_filter = lookup_value(rx_filters, N_RX_FILTERS, argv[3]);
101 if (config.tx_type < 0 || config.rx_filter < 0) {
107 sock = socket(AF_INET, SOCK_DGRAM, 0);
113 strcpy(ifr.ifr_name, argv[1]);
114 ifr.ifr_data = (caddr_t)&config;
116 if (ioctl(sock, (argc == 2) ? SIOCGHWTSTAMP : SIOCSHWTSTAMP, &ifr)) {
121 printf("flags = %#x\n", config.flags);
122 name = lookup_name(tx_types, N_TX_TYPES, config.tx_type);
124 printf("tx_type = %s\n", name);
126 printf("tx_type = %d\n", config.tx_type);
127 name = lookup_name(rx_filters, N_RX_FILTERS, config.rx_filter);
129 printf("rx_filter = %s\n", name);
131 printf("rx_filter = %d\n", config.rx_filter);