From: Maxim Mikityanskiy <maximmi@nvidia.com>
Date: Mon, 30 May 2022 14:14:38 +0000 (+0300)
Subject: ss: Show zerocopy sendfile status of TLS sockets
X-Git-Tag: v6.0.0~43
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=21c07b45688fee4e3b690816ecc4d5206d15a135;p=thirdparty%2Fiproute2.git

ss: Show zerocopy sendfile status of TLS sockets

Print the activation status of zerocopy sendfile on TLS sockets.
Zerocopy sendfile was recently added to Linux and exposed via sock_diag.

Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
---

diff --git a/misc/ss.c b/misc/ss.c
index 4b3ca9c4e..57677cf25 100644
--- a/misc/ss.c
+++ b/misc/ss.c
@@ -2952,6 +2952,11 @@ static void tcp_tls_conf(const char *name, struct rtattr *attr)
 	}
 }
 
+static void tcp_tls_zc_sendfile(struct rtattr *attr)
+{
+	out(" zerocopy_sendfile: %s", attr ? "active" : "inactive");
+}
+
 static void mptcp_subflow_info(struct rtattr *tb[])
 {
 	u_int32_t flags = 0;
@@ -3182,6 +3187,7 @@ static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
 			tcp_tls_cipher(tlsinfo[TLS_INFO_CIPHER]);
 			tcp_tls_conf("rxconf", tlsinfo[TLS_INFO_RXCONF]);
 			tcp_tls_conf("txconf", tlsinfo[TLS_INFO_TXCONF]);
+			tcp_tls_zc_sendfile(tlsinfo[TLS_INFO_ZC_SENDFILE]);
 		}
 		if (ulpinfo[INET_ULP_INFO_MPTCP]) {
 			struct rtattr *sfinfo[MPTCP_SUBFLOW_ATTR_MAX + 1] =