summaryrefslogtreecommitdiffstats
path: root/tools/testing/selftests/net/hwtstamp_config.c
diff options
context:
space:
mode:
Diffstat (limited to 'tools/testing/selftests/net/hwtstamp_config.c')
-rw-r--r--tools/testing/selftests/net/hwtstamp_config.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/hwtstamp_config.c b/tools/testing/selftests/net/hwtstamp_config.c
new file mode 100644
index 000000000..e1fdee841
--- /dev/null
+++ b/tools/testing/selftests/net/hwtstamp_config.c
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0
+/* 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;
+}