[PATCH] Replace HTTP links with HTTPS ones: IPv*

From: Alexander A. Klimov
Date: Mon Jul 06 2020 - 13:39:07 EST


Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@xxxxxxxxxxxx>
---
Continuing my work started at 93431e0607e5.

If there are any URLs to be removed completely or at least not HTTPSified:
Just clearly say so and I'll *undo my change*.
See also https://lkml.org/lkml/2020/6/27/64

If there are any valid, but yet not changed URLs:
See https://lkml.org/lkml/2020/6/26/837

net/ipv4/Kconfig | 8 ++++----
net/ipv4/cipso_ipv4.c | 4 ++--
net/ipv4/fib_trie.c | 2 +-
net/ipv4/netfilter/ipt_CLUSTERIP.c | 2 +-
net/ipv4/tcp_highspeed.c | 2 +-
net/ipv4/tcp_htcp.c | 2 +-
net/ipv4/tcp_input.c | 2 +-
net/ipv4/tcp_veno.c | 2 +-
net/ipv6/Kconfig | 2 +-
9 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index e64e59b536d3..60db5a6487cc 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -10,7 +10,7 @@ config IP_MULTICAST
intend to participate in the MBONE, a high bandwidth network on top
of the Internet which carries audio and video broadcasts. More
information about the MBONE is on the WWW at
- <http://www.savetz.com/mbone/>. For most people, it's safe to say N.
+ <https://www.savetz.com/mbone/>. For most people, it's safe to say N.

config IP_ADVANCED_ROUTER
bool "IP: advanced router"
@@ -73,7 +73,7 @@ config IP_MULTIPLE_TABLES

If you need more information, see the Linux Advanced
Routing and Traffic Control documentation at
- <http://lartc.org/howto/lartc.rpdb.html>
+ <https://lartc.org/howto/lartc.rpdb.html>

If unsure, say N.

@@ -280,7 +280,7 @@ config SYN_COOKIES
continue to connect, even when your machine is under attack. There
is no need for the legitimate users to change their TCP/IP software;
SYN cookies work transparently to them. For technical information
- about SYN cookies, check out <http://cr.yp.to/syncookies.html>.
+ about SYN cookies, check out <https://cr.yp.to/syncookies.html>.

If you are SYN flooded, the source address reported by the kernel is
likely to have been forged by the attacker; it is only reported as
@@ -525,7 +525,7 @@ config TCP_CONG_HSTCP
A modification to TCP's congestion control mechanism for use
with large congestion windows. A table indicates how much to
increase the congestion window by when an ACK is received.
- For more detail see http://www.icir.org/floyd/hstcp.html
+ For more detail see https://www.icir.org/floyd/hstcp.html

config TCP_CONG_HYBLA
tristate "TCP-Hybla congestion control algorithm"
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index a23094b050f8..0f1b9065c0a6 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -10,9 +10,9 @@
*
* The CIPSO draft specification can be found in the kernel's Documentation
* directory as well as the following URL:
- * http://tools.ietf.org/id/draft-ietf-cipso-ipsecurity-01.txt
+ * https://tools.ietf.org/id/draft-ietf-cipso-ipsecurity-01.txt
* The FIPS-188 specification can be found at the following URL:
- * http://www.itl.nist.gov/fipspubs/fip188.htm
+ * https://www.itl.nist.gov/fipspubs/fip188.htm
*
* Author: Paul Moore <paul.moore@xxxxxx>
*/
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 248f1c1959a6..dcb0802a47d5 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -13,7 +13,7 @@
*
* An experimental study of compression methods for dynamic tries
* Stefan Nilsson and Matti Tikkanen. Algorithmica, 33(1):19-33, 2002.
- * http://www.csc.kth.se/~snilsson/software/dyntrie2/
+ * https://www.csc.kth.se/~snilsson/software/dyntrie2/
*
* IP-address lookup using LC-tries. Stefan Nilsson and Gunnar Karlsson
* IEEE Journal on Selected Areas in Communications, 17(6):1083-1092, June 1999
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index f8755a4ae9d4..a8b980ad11d4 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -3,7 +3,7 @@
* (C) 2003-2004 by Harald Welte <laforge@xxxxxxxxxxxxx>
* based on ideas of Fabio Olive Leite <olive@xxxxxxxxxxxxx>
*
- * Development of this code funded by SuSE Linux AG, http://www.suse.com/
+ * Development of this code funded by SuSE Linux AG, https://www.suse.com/
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
diff --git a/net/ipv4/tcp_highspeed.c b/net/ipv4/tcp_highspeed.c
index bfdfbb972c57..349069d6cd0a 100644
--- a/net/ipv4/tcp_highspeed.c
+++ b/net/ipv4/tcp_highspeed.c
@@ -2,7 +2,7 @@
/*
* Sally Floyd's High Speed TCP (RFC 3649) congestion control
*
- * See http://www.icir.org/floyd/hstcp.html
+ * See https://www.icir.org/floyd/hstcp.html
*
* John Heffner <jheffner@xxxxxxx>
*/
diff --git a/net/ipv4/tcp_htcp.c b/net/ipv4/tcp_htcp.c
index 88e1f011afe0..55adcfcf96fe 100644
--- a/net/ipv4/tcp_htcp.c
+++ b/net/ipv4/tcp_htcp.c
@@ -4,7 +4,7 @@
* R.N.Shorten, D.J.Leith:
* "H-TCP: TCP for high-speed and long-distance networks"
* Proc. PFLDnet, Argonne, 2004.
- * http://www.hamilton.ie/net/htcp3.pdf
+ * https://www.hamilton.ie/net/htcp3.pdf
*/

#include <linux/mm.h>
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index f3a0eb139b76..1355888b9354 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -518,7 +518,7 @@ EXPORT_SYMBOL(tcp_initialize_rcv_mss);
*
* The algorithm for RTT estimation w/o timestamps is based on
* Dynamic Right-Sizing (DRS) by Wu Feng and Mike Fisk of LANL.
- * <http://public.lanl.gov/radiant/pubs.html#DRS>
+ * <https://public.lanl.gov/radiant/pubs.html#DRS>
*
* More detail on this code can be found at
* <http://staff.psc.edu/jheffner/>,
diff --git a/net/ipv4/tcp_veno.c b/net/ipv4/tcp_veno.c
index 50a9a6e2c4cd..cd50a61c9976 100644
--- a/net/ipv4/tcp_veno.c
+++ b/net/ipv4/tcp_veno.c
@@ -7,7 +7,7 @@
* "TCP Veno: TCP Enhancement for Transmission over Wireless Access Networks."
* IEEE Journal on Selected Areas in Communication,
* Feb. 2003.
- * See http://www.ie.cuhk.edu.hk/fileadmin/staff_upload/soung/Journal/J3.pdf
+ * See https://www.ie.cuhk.edu.hk/fileadmin/staff_upload/soung/Journal/J3.pdf
*/

#include <linux/mm.h>
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index f4f19e89af5e..76bff79d6fed 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -14,7 +14,7 @@ menuconfig IPV6
<https://en.wikipedia.org/wiki/IPv6>.
For specific information about IPv6 under Linux, see
Documentation/networking/ipv6.rst and read the HOWTO at
- <http://www.tldp.org/HOWTO/Linux+IPv6-HOWTO/>
+ <https://www.tldp.org/HOWTO/Linux+IPv6-HOWTO/>

To compile this protocol support as a module, choose M here: the
module will be called ipv6.
--
2.27.0