修正根据CMSG恢复TCP链接时没有正确填写TCP时间戳启用选项的问题。bugfix-timestamp

    * 原实现仅从CMSG中读取了TCP时间戳选项，在恢复TCP链接时没有向内核传入，现修正。

1 files changed, 11 insertions, 0 deletions

diff --git a/core.c b/core.c
index 13d35c4..2990e27 100644
--- a/core.c
+++ b/core.c
@@ -270,6 +270,10 @@ static int __tcp_restore_fd_create(struct net *netspace, const struct tcp_restor
 #define TCPOPT_SACK_PERMITTED 4
 #endif
 
+#ifndef TCPOPT_TIMESTAMP
+#define TCPOPT_TIMESTAMP 8
+#endif
+
     tcp_repair_opts[nr_tcp_repair_opts].opt_code = TCPOPT_MAXSEG;
     tcp_repair_opts[nr_tcp_repair_opts].opt_val = min(endpoint->mss, peer->mss);
     nr_tcp_repair_opts++;
@@ -288,6 +292,13 @@ static int __tcp_restore_fd_create(struct net *netspace, const struct tcp_restor
         nr_tcp_repair_opts++;
     }
 
+    if (endpoint->timestamp_perm && peer->timestamp_perm)
+	{
+		tcp_repair_opts[nr_tcp_repair_opts].opt_code = TCPOPT_TIMESTAMP;
+		tcp_repair_opts[nr_tcp_repair_opts].opt_val = 0;
+		nr_tcp_repair_opts++;
+	}
+
     /* Bind address and connect to peer endpoint */
     result = kernel_bind(__sock, (struct sockaddr *)&endpoint->addr, sizeof(endpoint->addr));
     if (unlikely(result < 0))