[PATCH] Replace HTTP links with HTTPS ones: kprobes

[PATCH] Replace HTTP links with HTTPS ones: kprobes

[Alexander A. Klimov]

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@al2klimov.de>
---
 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

 Documentation/kprobes.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt
index 8baab8832c5b..f6990f64154f 100644
--- a/Documentation/kprobes.txt
+++ b/Documentation/kprobes.txt
@@ -693,7 +693,7 @@ process. Here are sample overhead figures (in usec) for x86 architectures::
 TODO
 ====
 
-a. SystemTap (http://sourceware.org/systemtap): Provides a simplified
+a. SystemTap (https://sourceware.org/systemtap): Provides a simplified
    programming interface for probe-based instrumentation.  Try it out.
 b. Kernel return probes for sparc64.
 c. Support for other architectures.
@@ -712,8 +712,8 @@ See samples/kprobes/kretprobe_example.c
 
 For additional information on Kprobes, refer to the following URLs:
 
-- http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
-- http://www.redhat.com/magazine/005mar05/features/kprobes/
+- https://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
+- https://www.redhat.com/magazine/005mar05/features/kprobes/
 - http://www-users.cs.umn.edu/~boutcher/kprobes/
 - http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)
 
-- 
2.27.0

Re: [PATCH] Replace HTTP links with HTTPS ones: kprobes

[Masami Hiramatsu]

On Tue,  7 Jul 2020 21:49:59 +0200
"Alexander A. Klimov" <grandmaster@al2klimov.de> wrote:

> 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.

OK, but it seems that some of them are disappeared :(

 http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe

 -> https://www.ibm.com/developerworks/library/l-kprobes/index.html

 http://www.redhat.com/magazine/005mar05/features/kprobes/

 -> I can not find that.

>  - http://www-users.cs.umn.edu/~boutcher/kprobes/
>  - http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)

Both are not found.

(OT, it seems http://www.linuxsymposium.org/ has been left from historical
 Linux Symposium, we must remove it asap)

Thank you,

> 
> Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
> ---
>  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
> 
>  Documentation/kprobes.txt | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt
> index 8baab8832c5b..f6990f64154f 100644
> --- a/Documentation/kprobes.txt
> +++ b/Documentation/kprobes.txt
> @@ -693,7 +693,7 @@ process. Here are sample overhead figures (in usec) for x86 architectures::
>  TODO
>  ====
>  
> -a. SystemTap (http://sourceware.org/systemtap): Provides a simplified
> +a. SystemTap (https://sourceware.org/systemtap): Provides a simplified
>     programming interface for probe-based instrumentation.  Try it out.
>  b. Kernel return probes for sparc64.
>  c. Support for other architectures.
> @@ -712,8 +712,8 @@ See samples/kprobes/kretprobe_example.c
>  
>  For additional information on Kprobes, refer to the following URLs:
>  
> -- http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
> -- http://www.redhat.com/magazine/005mar05/features/kprobes/
> +- https://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
> +- https://www.redhat.com/magazine/005mar05/features/kprobes/
>  - http://www-users.cs.umn.edu/~boutcher/kprobes/
>  - http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)
>  
> -- 
> 2.27.0
> 


-- 
Masami Hiramatsu <mhiramat@kernel.org>

[PATCH] kprobes: Replace HTTP links with HTTPS ones

[Alexander A. Klimov]

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@al2klimov.de>
---
 I'd really would like to get HTTPSifying done before other tasks...

 Documentation/kprobes.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt
index 8baab8832c5b..88b4d2845b37 100644
--- a/Documentation/kprobes.txt
+++ b/Documentation/kprobes.txt
@@ -693,7 +693,7 @@ process. Here are sample overhead figures (in usec) for x86 architectures::
 TODO
 ====
 
-a. SystemTap (http://sourceware.org/systemtap): Provides a simplified
+a. SystemTap (https://sourceware.org/systemtap): Provides a simplified
    programming interface for probe-based instrumentation.  Try it out.
 b. Kernel return probes for sparc64.
 c. Support for other architectures.
-- 
2.27.0

Re: [PATCH] Replace HTTP links with HTTPS ones: kprobes

[Naveen N. Rao]

Masami Hiramatsu wrote:
> On Tue,  7 Jul 2020 21:49:59 +0200
> "Alexander A. Klimov" <grandmaster@al2klimov.de> wrote:
> 
>> 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.
> 
> OK, but it seems that some of them are disappeared :(
> 
>  http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
> 
>  -> https://www.ibm.com/developerworks/library/l-kprobes/index.html

That looks right.

> 
>  http://www.redhat.com/magazine/005mar05/features/kprobes/
> 
>  -> I can not find that.

Ditto, we should drop that.

> 
>>  - http://www-users.cs.umn.edu/~boutcher/kprobes/
>>  - http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)
> 
> Both are not found.

It looks like the first link is gone, but there seems to be a copy in 
the web archive:
https://web.archive.org/web/20061106154519/http://www-users.cs.umn.edu/~boutcher/kprobes/

I suppose we can drop that link.

> 
> (OT, it seems http://www.linuxsymposium.org/ has been left from historical
>  Linux Symposium, we must remove it asap)

Indeed, I think that link pointed to the Kprobes paper:
https://www.kernel.org/doc/ols/2006/ols2006v2-pages-109-124.pdf


- Naveen

Re: [PATCH] Replace HTTP links with HTTPS ones: kprobes

[Masami Hiramatsu]

Hi Naveen and Alexander,

On Fri, 10 Jul 2020 19:14:47 +0530
"Naveen N. Rao" <naveen.n.rao@linux.ibm.com> wrote:

> Masami Hiramatsu wrote:
> > On Tue,  7 Jul 2020 21:49:59 +0200
> > "Alexander A. Klimov" <grandmaster@al2klimov.de> wrote:
> > 
> >> 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.
> > 
> > OK, but it seems that some of them are disappeared :(
> > 
> >  http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
> > 
> >  -> https://www.ibm.com/developerworks/library/l-kprobes/index.html
> 
> That looks right.
> 
> > 
> >  http://www.redhat.com/magazine/005mar05/features/kprobes/
> > 
> >  -> I can not find that.
> 
> Ditto, we should drop that.
> 
> > 
> >>  - http://www-users.cs.umn.edu/~boutcher/kprobes/
> >>  - http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)
> > 
> > Both are not found.
> 
> It looks like the first link is gone, but there seems to be a copy in 
> the web archive:
> https://web.archive.org/web/20061106154519/http://www-users.cs.umn.edu/~boutcher/kprobes/
> 
> I suppose we can drop that link.
> 
> > 
> > (OT, it seems http://www.linuxsymposium.org/ has been left from historical
> >  Linux Symposium, we must remove it asap)
> 
> Indeed, I think that link pointed to the Kprobes paper:
> https://www.kernel.org/doc/ols/2006/ols2006v2-pages-109-124.pdf

Ah, there is.
Thank you for the confirmation.
Alexander, can you update other urls instead of just replacing the http with https?

> 
> 
> - Naveen
> 


-- 
Masami Hiramatsu <mhiramat@kernel.org>

Re: [PATCH] kprobes: Replace HTTP links with HTTPS ones

[Jonathan Corbet]

On Thu,  9 Jul 2020 21:16:36 +0200
"Alexander A. Klimov" <grandmaster@al2klimov.de> wrote:

>  Documentation/kprobes.txt | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

This file no longer exists in docs-next or linux-next (it's been converted
to RST and moved).  What tree are you making your patches against?

jon

Re: [PATCH] kprobes: Replace HTTP links with HTTPS ones

[Alexander A. Klimov]

Am 13.07.20 um 17:40 schrieb Jonathan Corbet:
> On Thu,  9 Jul 2020 21:16:36 +0200
> "Alexander A. Klimov" <grandmaster@al2klimov.de> wrote:
> 
>>   Documentation/kprobes.txt | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> This file no longer exists in docs-next or linux-next (it's been converted
OK, forget this patch.

> to RST and moved).  What tree are you making your patches against?
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/

> 
> jon
> 

Re: [PATCH] Replace HTTP links with HTTPS ones: kprobes

[Alexander A. Klimov]

Am 13.07.20 um 16:20 schrieb Masami Hiramatsu:
> Hi Naveen and Alexander,
> 
> On Fri, 10 Jul 2020 19:14:47 +0530
> "Naveen N. Rao" <naveen.n.rao@linux.ibm.com> wrote:
> 
>> Masami Hiramatsu wrote:
>>> On Tue,  7 Jul 2020 21:49:59 +0200
>>> "Alexander A. Klimov" <grandmaster@al2klimov.de> wrote:
>>>
>>>> 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.
>>>
>>> OK, but it seems that some of them are disappeared :(
>>>
>>>   http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
>>>
>>>   -> https://www.ibm.com/developerworks/library/l-kprobes/index.html
>>
>> That looks right.
>>
>>>
>>>   http://www.redhat.com/magazine/005mar05/features/kprobes/
>>>
>>>   -> I can not find that.
>>
>> Ditto, we should drop that.
>>
>>>
>>>>   - http://www-users.cs.umn.edu/~boutcher/kprobes/
>>>>   - http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)
>>>
>>> Both are not found.
>>
>> It looks like the first link is gone, but there seems to be a copy in
>> the web archive:
>> https://web.archive.org/web/20061106154519/http://www-users.cs.umn.edu/~boutcher/kprobes/
>>
>> I suppose we can drop that link.
>>
>>>
>>> (OT, it seems http://www.linuxsymposium.org/ has been left from historical
>>>   Linux Symposium, we must remove it asap)
>>
>> Indeed, I think that link pointed to the Kprobes paper:
>> https://www.kernel.org/doc/ols/2006/ols2006v2-pages-109-124.pdf
> 
> Ah, there is.
> Thank you for the confirmation.
> Alexander, can you update other urls instead of just replacing the http with https?
Sry, but I don't steal others' work (on principle).

If I didn't the work (e.g. searched the replacement URL), I don't 
deserve to author the respective commit.

Also my HTTPSifying task is not done yet.

> 
>>
>>
>> - Naveen
>>
> 
> 

Re: [PATCH] Replace HTTP links with HTTPS ones: kprobes

[Masami Hiramatsu]

On Tue, 14 Jul 2020 00:02:49 +0200
"Alexander A. Klimov" <grandmaster@al2klimov.de> wrote:

> 
> 
> Am 13.07.20 um 16:20 schrieb Masami Hiramatsu:
> > Hi Naveen and Alexander,
> > 
> > On Fri, 10 Jul 2020 19:14:47 +0530
> > "Naveen N. Rao" <naveen.n.rao@linux.ibm.com> wrote:
> > 
> >> Masami Hiramatsu wrote:
> >>> On Tue,  7 Jul 2020 21:49:59 +0200
> >>> "Alexander A. Klimov" <grandmaster@al2klimov.de> wrote:
> >>>
> >>>> 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.
> >>>
> >>> OK, but it seems that some of them are disappeared :(
> >>>
> >>>   http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
> >>>
> >>>   -> https://www.ibm.com/developerworks/library/l-kprobes/index.html
> >>
> >> That looks right.
> >>
> >>>
> >>>   http://www.redhat.com/magazine/005mar05/features/kprobes/
> >>>
> >>>   -> I can not find that.
> >>
> >> Ditto, we should drop that.
> >>
> >>>
> >>>>   - http://www-users.cs.umn.edu/~boutcher/kprobes/
> >>>>   - http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)
> >>>
> >>> Both are not found.
> >>
> >> It looks like the first link is gone, but there seems to be a copy in
> >> the web archive:
> >> https://web.archive.org/web/20061106154519/http://www-users.cs.umn.edu/~boutcher/kprobes/
> >>
> >> I suppose we can drop that link.
> >>
> >>>
> >>> (OT, it seems http://www.linuxsymposium.org/ has been left from historical
> >>>   Linux Symposium, we must remove it asap)
> >>
> >> Indeed, I think that link pointed to the Kprobes paper:
> >> https://www.kernel.org/doc/ols/2006/ols2006v2-pages-109-124.pdf
> > 
> > Ah, there is.
> > Thank you for the confirmation.
> > Alexander, can you update other urls instead of just replacing the http with https?
> Sry, but I don't steal others' work (on principle).
> 
> If I didn't the work (e.g. searched the replacement URL), I don't 
> deserve to author the respective commit.
> 
> Also my HTTPSifying task is not done yet.

Hmm, Naveen, then, can you make the update?

Thank you,

-- 
Masami Hiramatsu <mhiramat@kernel.org>

Re: [PATCH] Replace HTTP links with HTTPS ones: kprobes

[Naveen N. Rao]

Masami Hiramatsu wrote:
> On Tue, 14 Jul 2020 00:02:49 +0200
> "Alexander A. Klimov" <grandmaster@al2klimov.de> wrote:
> 
>> 
>> 
>> Am 13.07.20 um 16:20 schrieb Masami Hiramatsu:
>> > Hi Naveen and Alexander,
>> > 
>> > On Fri, 10 Jul 2020 19:14:47 +0530
>> > "Naveen N. Rao" <naveen.n.rao@linux.ibm.com> wrote:
>> > 
>> >> Masami Hiramatsu wrote:
>> >>> On Tue,  7 Jul 2020 21:49:59 +0200
>> >>> "Alexander A. Klimov" <grandmaster@al2klimov.de> wrote:
>> >>>
>> >>>> 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.
>> >>>
>> >>> OK, but it seems that some of them are disappeared :(
>> >>>
>> >>>   http://www-106.ibm.com/developerworks/library/l-kprobes.html?ca=dgr-lnxw42Kprobe
>> >>>
>> >>>   -> https://www.ibm.com/developerworks/library/l-kprobes/index.html
>> >>
>> >> That looks right.
>> >>
>> >>>
>> >>>   http://www.redhat.com/magazine/005mar05/features/kprobes/
>> >>>
>> >>>   -> I can not find that.
>> >>
>> >> Ditto, we should drop that.
>> >>
>> >>>
>> >>>>   - http://www-users.cs.umn.edu/~boutcher/kprobes/
>> >>>>   - http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)
>> >>>
>> >>> Both are not found.
>> >>
>> >> It looks like the first link is gone, but there seems to be a copy in
>> >> the web archive:
>> >> https://web.archive.org/web/20061106154519/http://www-users.cs.umn.edu/~boutcher/kprobes/
>> >>
>> >> I suppose we can drop that link.
>> >>
>> >>>
>> >>> (OT, it seems http://www.linuxsymposium.org/ has been left from historical
>> >>>   Linux Symposium, we must remove it asap)
>> >>
>> >> Indeed, I think that link pointed to the Kprobes paper:
>> >> https://www.kernel.org/doc/ols/2006/ols2006v2-pages-109-124.pdf
>> > 
>> > Ah, there is.
>> > Thank you for the confirmation.
>> > Alexander, can you update other urls instead of just replacing the http with https?
>> Sry, but I don't steal others' work (on principle).
>> 
>> If I didn't the work (e.g. searched the replacement URL), I don't 
>> deserve to author the respective commit.

Alexander,
Next time, please ask if you aren't sure about including others' 
suggestions -- no need to term it as "stealing". Masami asked if you can 
include this, and I shared what I thought are the correct URLs so that 
they can be included. We don't mind someone else doing this change.

Besides, there are ways to acknowledge others, through a Suggested-by 
tag, as an example.

>> 
>> Also my HTTPSifying task is not done yet.
> 
> Hmm, Naveen, then, can you make the update?

Sure, I will send a patch.


- Naveen

Re: [PATCH] kprobes: Replace HTTP links with HTTPS ones

[Masami Hiramatsu]

On Thu,  9 Jul 2020 21:16:36 +0200
"Alexander A. Klimov" <grandmaster@al2klimov.de> wrote:

> 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.
> 

Acked-by: Masami Hiramatsu <mhiramat@kernel.org>

Thanks!

> Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
> ---
>  I'd really would like to get HTTPSifying done before other tasks...
> 
>  Documentation/kprobes.txt | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt
> index 8baab8832c5b..88b4d2845b37 100644
> --- a/Documentation/kprobes.txt
> +++ b/Documentation/kprobes.txt
> @@ -693,7 +693,7 @@ process. Here are sample overhead figures (in usec) for x86 architectures::
>  TODO
>  ====
>  
> -a. SystemTap (http://sourceware.org/systemtap): Provides a simplified
> +a. SystemTap (https://sourceware.org/systemtap): Provides a simplified
>     programming interface for probe-based instrumentation.  Try it out.
>  b. Kernel return probes for sparc64.
>  c. Support for other architectures.
> -- 
> 2.27.0
> 


-- 
Masami Hiramatsu <mhiramat@kernel.org>