Fix SO_TXTIME socket configuration issue, and disable Werror

packet-exchange/build/Makefile

@@ -12,7 +12,7 @@ CLIENT_SRCS += send_packet.c
 SERVER_OBJS = $(SERVER_SRCS:%.c=%.o)
 CLIENT_OBJS = $(CLIENT_SRCS:%.c=%.o)
 
-CFLAGS = -Og -g -Wall -Werror -Wextra
+CFLAGS = -Og -g -Wall -Wextra
 CFLAGS += -MD -MP
 CFLAGS += -I $(SRCDIR)
 CFLAGS += -std=gnu99

packet-exchange/src/client.c

@@ -81,7 +81,7 @@ static void *packet_sending_thread(void *p) {
   clock_gettime(CLOCK_ID, &next);
   next_txtime = next.tv_sec * NSEC_PER_SEC + next.tv_nsec;
   // Wait around 1 second
-  next_txtime += (NSEC_PER_SEC / param->interval) * param->interval;
+  next_txtime += (10 * NSEC_PER_SEC / param->interval) * param->interval;
   // Send packet while thread is sleeping
   next_txtime += (param->interval) / 2;
 
@@ -120,7 +120,7 @@ int main(int argc, char *argv[]) {
   // Process bash options
   process_options(argc, argv, &param, &main_param);
 
-  init_udp_etf(param.enable_affinity, param.network_if);
+  init_udp_etf(param.enable_etf, param.network_if);
 
   usleep(10000);
 

packet-exchange/src/send_packet.c

@@ -133,7 +133,7 @@ void init_udp_etf(int use_etf, char *network_if) {
 
   if (use_etf) {
     sk_txtime.clockid = CLOCK_ID;
-    sk_txtime.flags = 0;
+    sk_txtime.flags = 1;
     // sk_txtime.flags = SOF_TXTIME_REPORT_ERRORS;
 
     if (setsockopt(fd, SOL_SOCKET, SO_TXTIME, &sk_txtime, sizeof(sk_txtime)))
@@ -174,8 +174,9 @@ void send_udp_packet_etf(int use_etf, uint64_t txtime, const char *server_ip) {
     cmsg = CMSG_FIRSTHDR(&msg);
     cmsg->cmsg_level = SOL_SOCKET;
     cmsg->cmsg_type = SCM_TXTIME;
-    cmsg->cmsg_len = CMSG_LEN(sizeof(__u64));
-    *((__u64 *)CMSG_DATA(cmsg)) = txtime;
+    cmsg->cmsg_len = CMSG_LEN(sizeof(uint64_t));
+    *((uint64_t *)CMSG_DATA(cmsg)) = txtime;
+    msg.msg_controllen = cmsg->cmsg_len;
   }
 
   sendmsgerr = sendmsg(fd, &msg, 0);