16 Nov
2004
16 Nov
'04
6:48 a.m.
Hello,
I think the white space is not legal in 3261. Please take a look at the
message below.
Best regards,
Martin
-----Original Message-----
From: Attila Sipos [mailto:Attila.Sipos@vegastream.com]
Sent: Tuesday, November 16, 2004 12:01 PM
To: Martin Koenig; sip-implementors(a)cs.columbia.edu
Subject: RE: [Sip-implementors] Whitespace after value in SIP header field
Hi,
One of the headers in the posting to the SERusers mailing
list is:
Max-Forwards: 8 .
According to RFC3261 Max-Forwards is defined as:
Max-Forwards = "Max-Forwards" HCOLON 1*DIGIT
and DIGIT (from RFC2234) is:
DIGIT = "0" / "1" / "2" / "3" /
"4" / "5" / "6" /
"7" / "8" / "9"
So, you can have a space between the colon and the first digit
but you're not allowed any spaces after or between any digits
and you're certainly not allowed a '.' character.
Regards,
Attila
Attila Sipos
Software Engineer
http://www.vegastream.com/
-----Original Message-----
From: sip-implementors-bounces(a)cs.columbia.edu
[mailto:sip-implementors-bounces@cs.columbia.edu]On Behalf Of Martin
Koenig
Sent: 16 November 2004 09:56
To: sip-implementors(a)cs.columbia.edu
Subject: [Sip-implementors] Whitespace after value in SIP header field
Hello,
please check the following posting to the SERusers mailinglist:
http://lists.iptel.org/pipermail/serusers/2004-September/011580.html
What do you think? Is the white space after the header field
value according
to 3261 or not?
Best regards,
Martin
_______________________________________________
Sip-implementors mailing list
Sip-implementors(a)cs.columbia.edu
http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
16 Nov
16 Nov
7:08 a.m.
New subject: [Serusers] Re: FW: [Sip-implementors] Whitespace after value in SIP header field
The BNF in RFC3261 is actually ambiguous. As you may see,
the extension header spec which matches Max-forwads too is
more explicit about use of LWS.
header-name = token
header-value = *(TEXT-UTF8char / UTF8-CONT / LWS)
I think this is a pefect case against a UAS for the SIP Forum testing
suite. (Nils on cc)
-jiri
At 12:48 PM 11/16/2004, Martin Koenig wrote:
Hello,
I think the white space is not legal in 3261. Please take a look at the
message below.
Best regards,
Martin
-----Original Message-----
From: Attila Sipos [mailto:Attila.Sipos@vegastream.com]
Sent: Tuesday, November 16, 2004 12:01 PM
To: Martin Koenig; sip-implementors(a)cs.columbia.edu
Subject: RE: [Sip-implementors] Whitespace after value in SIP header field
Hi,
One of the headers in the posting to the SERusers mailing
list is:
Max-Forwards: 8 .
According to RFC3261 Max-Forwards is defined as:
Max-Forwards = "Max-Forwards" HCOLON 1*DIGIT
and DIGIT (from RFC2234) is:
DIGIT = "0" / "1" / "2" / "3" /
"4" / "5" / "6" /
"7" / "8" / "9"
So, you can have a space between the colon and the first digit
but you're not allowed any spaces after or between any digits
and you're certainly not allowed a '.' character.
Regards,
Attila
Attila Sipos
Software Engineer
http://www.vegastream.com/
> -----Original Message-----
> From: sip-implementors-bounces(a)cs.columbia.edu
> [mailto:sip-implementors-bounces@cs.columbia.edu]On Behalf Of Martin
> Koenig
> Sent: 16 November 2004 09:56
> To: sip-implementors(a)cs.columbia.edu
> Subject: [Sip-implementors] Whitespace after value in SIP header field
>
>
> Hello,
>
> please check the following posting to the SERusers mailinglist:
>
> http://lists.iptel.org/pipermail/serusers/2004-September/011580.html
>
> What do you think? Is the white space after the header field
> value according
> to 3261 or not?
>
> Best regards,
> Martin
>
> _______________________________________________
> Sip-implementors mailing list
> Sip-implementors(a)cs.columbia.edu
> http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
>
--
Jiri Kuthan http://iptel.org/~jiri/
4:13 p.m.
New subject: [Serusers] Re: FW: [Sip-implementors] Whitespace after value in SIP header field
I think the hole case is typical example of: "be liberal on what you receive,
but be strict on what you send". Thus IMO both implementations, the gateway
and the proxy, should be fixed.
Jiri: sure you can refer to the generic extension. That allows any header with
any value in a SIP message. But then you can not count on the rules any more
which apply only to the non-generic headers (here how to process the MF
header). Otherwise you would be allowed to put any content into any known
header.
But I agree that the RFC BNF should be extended to allow WS also at the end of
a line.
Sorry but I do not agree to implement a RFC compliance test which is IMHO not
covered by the RFC (yet).
Regards
Nils
On Tuesday 16 November 2004 13:08, Jiri Kuthan wrote:
The BNF in RFC3261 is actually ambiguous. As you may
see,
the extension header spec which matches Max-forwads too is
more explicit about use of LWS.
header-name = token
header-value = *(TEXT-UTF8char / UTF8-CONT / LWS)
I think this is a pefect case against a UAS for the SIP Forum testing
suite. (Nils on cc)
-jiri
At 12:48 PM 11/16/2004, Martin Koenig wrote:
Hello,
I think the white space is not legal in 3261. Please take a look at the
message below.
Best regards,
Martin
-----Original Message-----
From: Attila Sipos [mailto:Attila.Sipos@vegastream.com]
Sent: Tuesday, November 16, 2004 12:01 PM
To: Martin Koenig; sip-implementors(a)cs.columbia.edu
Subject: RE: [Sip-implementors] Whitespace after value in SIP header field
Hi,
One of the headers in the posting to the SERusers mailing
list is:
Max-Forwards: 8 .
According to RFC3261 Max-Forwards is defined as:
Max-Forwards = "Max-Forwards" HCOLON 1*DIGIT
and DIGIT (from RFC2234) is:
DIGIT = "0" / "1" / "2" / "3" /
"4" / "5" / "6" /
"7" / "8" / "9"
So, you can have a space between the colon and the first digit
but you're not allowed any spaces after or between any digits
and you're certainly not allowed a '.' character.
Regards,
Attila
Attila Sipos
Software Engineer
http://www.vegastream.com/
> -----Original Message-----
> From: sip-implementors-bounces(a)cs.columbia.edu
> [mailto:sip-implementors-bounces@cs.columbia.edu]On Behalf Of Martin
> Koenig
> Sent: 16 November 2004 09:56
> To: sip-implementors(a)cs.columbia.edu
> Subject: [Sip-implementors] Whitespace after value in SIP header field
>
>
> Hello,
>
> please check the following posting to the SERusers mailinglist:
>
> http://lists.iptel.org/pipermail/serusers/2004-September/011580.html
>
> What do you think? Is the white space after the header field
> value according
> to 3261 or not?
>
> Best regards,
> Martin
>
> _______________________________________________
> Sip-implementors mailing list
> Sip-implementors(a)cs.columbia.edu
> http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
--
Jiri Kuthan http://iptel.org/~jiri/
_______________________________________________
Serusers mailing list
serusers(a)lists.iptel.org
http://lists.iptel.org/mailman/listinfo/serusers
17 Nov
17 Nov
12:42 p.m.
New subject: [Serusers] Re: FW: [Sip-implementors] Whitespace after value in SIP header field
At 10:13 PM 11/16/2004, Nils Ohlmeier wrote:
Sorry but I do not agree to implement a RFC compliance
test which is IMHO not
covered by the RFC (yet).
Scope of SFTF is actually not spell-checking RFC compliance but more general,
interoperability.
See http://www.ietf.org/internet-drafts/draft-ietf-sipping-torture-tests-04.txt
for what it may be. The receiver should be liberal and if they don't understand
something, they should skip it (as opposed to denying a request).
-jiri
20 Nov
20 Nov
9:34 a.m.
New subject: [Serusers] Re: FW: [Sip-implementors] Whitespace after value in SIP header field
On Wednesday 17 November 2004 18:42, Jiri Kuthan wrote:
At 10:13 PM 11/16/2004, Nils Ohlmeier wrote:
Yes that is true. But up to now there is no single test in STFT implemented
which is not 100% covered by the RFC.
Sorry but I do not agree to implement a RFC
compliance test which is IMHO
not covered by the RFC (yet).
Scope of SFTF is actually not spell-checking RFC compliance but more
general, interoperability. See
http://www.ietf.org/internet-drafts/draft-ietf-sipping-torture-tests-04.txt
for what it may be. The receiver should be liberal and if they don't
understand something, they should skip it (as opposed to denying a
request).
I know it :-)
Only a very small subset of this draft is implemented in SFTF. And for every
of these implemented tests it is IMO absolutely clear from the RFC how the UA
should react. This is not the case for spaces at the end of the MF header or
any header in general.
We can discuss to add a new section of optional tests which should be passed
to improve interoperability, but which are not mandatory because they are not
(yet) covered by a RFC. But I'll not make such a dession on my own.
Greetings
Nils
10:44 a.m.
New subject: [Serusers] SER + Asterisk
Hi to all,
my SER + Asterisk is working now. I could reach voicemail. Changes that
must be made are followed (correct if I'm wrong !!):
1) In sip.conf, registered your clients (each client)
register => user:password@IPSERSERVER:5060/extension
2) define your extensions.conf
3) Create voicemail for client.
That what I did.
Thanks for correction
Ahmed
16 Nov
16 Nov
8:07 a.m.
If I remember it correctly this was considered a bug in the specification.
Unfortunately I cannot check it right now because the bugzilla that keeps
track of RFC3261 bugs seems to be down:
http://www.softarmor.com/sipwg/
I will check it later when it is back online.
My personal opinion is that a reasonable implementation should be
benevolent and handle such cases even if it is not allowed in the
grammar. The grammar in RFC3261 is known to be ambiguous and contains
bugs.
Jan.
On 16-11 12:48, Martin Koenig wrote:
Hello,
I think the white space is not legal in 3261. Please take a look at the
message below.
Best regards,
Martin
-----Original Message-----
From: Attila Sipos [mailto:Attila.Sipos@vegastream.com]
Sent: Tuesday, November 16, 2004 12:01 PM
To: Martin Koenig; sip-implementors(a)cs.columbia.edu
Subject: RE: [Sip-implementors] Whitespace after value in SIP header field
Hi,
One of the headers in the posting to the SERusers mailing
list is:
Max-Forwards: 8 .
According to RFC3261 Max-Forwards is defined as:
Max-Forwards = "Max-Forwards" HCOLON 1*DIGIT
and DIGIT (from RFC2234) is:
DIGIT = "0" / "1" / "2" / "3" /
"4" / "5" / "6" /
"7" / "8" / "9"
So, you can have a space between the colon and the first digit
but you're not allowed any spaces after or between any digits
and you're certainly not allowed a '.' character.
Regards,
Attila
Attila Sipos
Software Engineer
http://www.vegastream.com/
-----Original Message-----
From: sip-implementors-bounces(a)cs.columbia.edu
[mailto:sip-implementors-bounces@cs.columbia.edu]On Behalf Of Martin
Koenig
Sent: 16 November 2004 09:56
To: sip-implementors(a)cs.columbia.edu
Subject: [Sip-implementors] Whitespace after value in SIP header field
Hello,
please check the following posting to the SERusers mailinglist:
http://lists.iptel.org/pipermail/serusers/2004-September/011580.html
What do you think? Is the white space after the header field
value according
to 3261 or not?
Best regards,
Martin
_______________________________________________
Sip-implementors mailing list
Sip-implementors(a)cs.columbia.edu
http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
_______________________________________________
Serusers mailing list
serusers(a)lists.iptel.org
http://lists.iptel.org/mailman/listinfo/serusers
4 Dec
4 Dec
12:27 p.m.
Since there is no such bug in RFC3261 bugzilla (and probably won't be),
it is now fixed in both stable and unstable versions, ser will generate
trailing spaces in Max-Forwards no more.
Jan.
On 16-11 12:48, Martin Koenig wrote:
Hello,
I think the white space is not legal in 3261. Please take a look at the
message below.
Best regards,
Martin
-----Original Message-----
From: Attila Sipos [mailto:Attila.Sipos@vegastream.com]
Sent: Tuesday, November 16, 2004 12:01 PM
To: Martin Koenig; sip-implementors(a)cs.columbia.edu
Subject: RE: [Sip-implementors] Whitespace after value in SIP header field
Hi,
One of the headers in the posting to the SERusers mailing
list is:
Max-Forwards: 8 .
According to RFC3261 Max-Forwards is defined as:
Max-Forwards = "Max-Forwards" HCOLON 1*DIGIT
and DIGIT (from RFC2234) is:
DIGIT = "0" / "1" / "2" / "3" /
"4" / "5" / "6" /
"7" / "8" / "9"
So, you can have a space between the colon and the first digit
but you're not allowed any spaces after or between any digits
and you're certainly not allowed a '.' character.
Regards,
Attila
Attila Sipos
Software Engineer
http://www.vegastream.com/
-----Original Message-----
From: sip-implementors-bounces(a)cs.columbia.edu
[mailto:sip-implementors-bounces@cs.columbia.edu]On Behalf Of Martin
Koenig
Sent: 16 November 2004 09:56
To: sip-implementors(a)cs.columbia.edu
Subject: [Sip-implementors] Whitespace after value in SIP header field
Hello,
please check the following posting to the SERusers mailinglist:
http://lists.iptel.org/pipermail/serusers/2004-September/011580.html
What do you think? Is the white space after the header field
value according
to 3261 or not?
Best regards,
Martin
_______________________________________________
Sip-implementors mailing list
Sip-implementors(a)cs.columbia.edu
http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
_______________________________________________
Serusers mailing list
serusers(a)lists.iptel.org
http://lists.iptel.org/mailman/listinfo/serusers
7326
days inactive
7344
days old
7 comments
5 participants
participants (5)
-
Ahmed Boreau -
Jan Janak -
Jiri Kuthan -
Martin Koenig -
Nils Ohlmeier