netdev - [RFC ipsec-next 2/8] iptfs: uapi: ip: add ip_tfs_*

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Message-ID: <20231110113719.3055788-3-chopps@chopps.org>
Date: Fri, 10 Nov 2023 06:37:13 -0500
From: Christian Hopps <chopps@...pps.org>
To: devel@...ux-ipsec.org
Cc: Steffen Klassert <steffen.klassert@...unet.com>,
	netdev@...r.kernel.org,
	Christian Hopps <chopps@...n.net>
Subject: [RFC ipsec-next 2/8] iptfs: uapi: ip: add ip_tfs_*_hdr packet formats

From: Christian Hopps <chopps@...n.net>

Add the on-wire basic and congestion-control IP-TFS packet headers.

Signed-off-by: Christian Hopps <chopps@...n.net>
---
 include/uapi/linux/ip.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/include/uapi/linux/ip.h b/include/uapi/linux/ip.h
index 283dec7e3645..cc83878ecf08 100644
--- a/include/uapi/linux/ip.h
+++ b/include/uapi/linux/ip.h
@@ -137,6 +137,23 @@ struct ip_beet_phdr {
 	__u8 reserved;
 };
 
+struct ip_iptfs_hdr {
+	__u8 subtype;		/* 0*: basic, 1: CC */
+	__u8 flags;
+	__be16 block_offset;
+};
+
+struct ip_iptfs_cc_hdr {
+	__u8 subtype;		/* 0: basic, 1*: CC */
+	__u8 flags;
+	__be16 block_offset;
+	__be32 loss_rate;
+	__u8 rtt_and_adelay1[4];
+	__u8 adelay2_and_xdelay[4];
+	__be32 tval;
+	__be32 techo;
+};
+
 /* index values for the variables in ipv4_devconf */
 enum
 {
-- 
2.42.0