strange regex question

[Xin]

Hi Alan Dekok,

The problem still existed. I have fully tested on my side, here is the test
cases:
1. Using if (User-Name =~ /Windows Phone\(.*)/)
======================================================================
rad_recv: Access-Request packet from host my_ip port 56949, id=128, le
ngth=177
        User-Name = "Windows Phone\\test"
        NAS-Port-Type = Virtual
        Service-Type = Framed-User
        NAS-Port = 119
        NAS-Port-Id = "radius"
        NAS-IP-Address = my_ip
        Called-Station-Id = "my_ip[4500]"
        Calling-Station-Id = "115.192.212.93[10001]"
        EAP-Message = 0x020000190157696e646f77732050686f6e655c6b697269746f
        NAS-Identifier = "strongSwan"
        Message-Authenticator = 0xe912c0d73c326349470205370aa8d85f
# Executing section authorize from file
/usr/local/etc/raddb/sites-enabled/defau
lt
+group authorize {
++[preprocess] = ok
++[chap] = noop
++[mschap] = noop
++[digest] = noop
[suffix] No '@' in User-Name = "Windows Phone\test", looking up realm NULL
[suffix] No such realm "NULL"
++[suffix] = noop
++? if (User-Name =~ /Windows Phone\(.*)/)
? Evaluating (User-Name =~ /Windows Phone\(.*)/) -> TRUE
++? if (User-Name =~ /Windows Phone\(.*)/) -> TRUE
++if (User-Name =~ /Windows Phone\(.*)/) {
+++update request {
        expand: %{1} -> \\test
+++} # update request = noop
++} # if (User-Name =~ /Windows Phone\(.*)/) = noop
[eap] EAP packet type response id 0 length 25
[eap] No EAP Start, assuming it's an on-going EAP conversation
++[eap] = updated
[sql]   expand: %{Stripped-User-Name} -> \\test
======================================================================

2. Using if (User-Name =~ /Windows Phone\\(.*)/)
======================================================================
rad_recv: Access-Request packet from host my_ip port 56949, id=131, le
ngth=177
        User-Name = "Windows Phone\\test"
        NAS-Port-Type = Virtual
        Service-Type = Framed-User
        NAS-Port = 120
        NAS-Port-Id = "radius"
        NAS-IP-Address = my_ip
        Called-Station-Id = "my_ip[4500]"
        Calling-Station-Id = "115.192.212.93[10001]"
        EAP-Message = 0x020000190157696e646f77732050686f6e655c6b697269746f
        NAS-Identifier = "strongSwan"
        Message-Authenticator = 0x6cc94e3db93e9276138dfeadfd5b4fb3
# Executing section authorize from file
/usr/local/etc/raddb/sites-enabled/defau
lt
+group authorize {
++[preprocess] = ok
++[chap] = noop
++[mschap] = noop
++[digest] = noop
[suffix] No '@' in User-Name = "Windows Phone\test", looking up realm NULL
[suffix] No such realm "NULL"
++[suffix] = noop
++? if (User-Name =~ /Windows Phone\\(.*)/)
? Evaluating (User-Name =~ /Windows Phone\\(.*)/) -> FALSE
++? if (User-Name =~ /Windows Phone\\(.*)/) -> FALSE
======================================================================

3.Using if (User-Name =~ /Windows Phone\\\\(.*)/)
======================================================================
rad_recv: Access-Request packet from host my_ip port 56949, id=134, le
ngth=177
        User-Name = "Windows Phone\\test"
        NAS-Port-Type = Virtual
        Service-Type = Framed-User
        NAS-Port = 121
        NAS-Port-Id = "radius"
        NAS-IP-Address = my_ip
        Called-Station-Id = "my_ip[4500]"
        Calling-Station-Id = "115.192.212.93[10001]"
        EAP-Message = 0x020000190157696e646f77732050686f6e655c6b697269746f
        NAS-Identifier = "strongSwan"
        Message-Authenticator = 0xd4cc436ce370efc9cc15580c228bcec5
# Executing section authorize from file
/usr/local/etc/raddb/sites-enabled/defau
lt
+group authorize {
++[preprocess] = ok
++[chap] = noop
++[mschap] = noop
++[digest] = noop
[suffix] No '@' in User-Name = "Windows Phone\test", looking up realm NULL
[suffix] No such realm "NULL"
++[suffix] = noop
++? if (User-Name =~ /Windows Phone\\\\(.*)/)
? Evaluating (User-Name =~ /Windows Phone\\\\(.*)/) -> TRUE
++? if (User-Name =~ /Windows Phone\\\\(.*)/) -> TRUE
++if (User-Name =~ /Windows Phone\\\\(.*)/) {
+++update request {
        expand: %{1} -> \test
+++} # update request = noop
++} # if (User-Name =~ /Windows Phone\\\\(.*)/) = noop
[eap] EAP packet type response id 0 length 25
[eap] No EAP Start, assuming it's an on-going EAP conversation
++[eap] = updated
[sql]   expand: %{Stripped-User-Name} -> \\test
[sql]   expand: %{%{Stripped-User-Name}:-%{%{User-Name}:-DEFAULT}} -> \\test
[sql] sql_set_user escaped user --> '\\test'
======================================================================

I'm using 'Windows Phone\\\\(.*)' or 'Windows Phone\\(.*)', all worked and
returned me 'test'.  
But what's wrong on unlang regex?(version: 2.2.5)

-----Original Message-----
From: freeradius-users-bounces+knightluffy=live.com at lists.freeradius.org
[mailto:freeradius-users-bounces+knightluffy=live.com at lists.freeradius.org]
On Behalf Of Xin
Sent: 2014年10月8日 21:47
To: 'FreeRadius users mailing list'
Subject: RE: strange regex question

I have found my mistake, it should be \\\\ not \\ :)

-----Original Message-----
From: freeradius-users-bounces+knightluffy=live.com at lists.freeradius.org
[mailto:freeradius-users-bounces+knightluffy=live.com at lists.freeradius.org]
On Behalf Of Xin
Sent: Wednesday, October 08, 2014 9:43 PM
To: 'FreeRadius users mailing list'
Subject: strange regex question

Hi Alan Dekok,

I'm looking your reply on:
http://lists.freeradius.org/pipermail/freeradius-users/2008-April/027737.htm
l
And I found you give an example as the following below:
> 	e.g. for : DOMAIN\randy.hall
> 
> 	if (User-Name =~ /^DOMAIN\\(.*)/) {
> 		update request {
> 			Stripped-User-Name := "%{1}"
> 		}
> 	}

But it fails in my case:
rad_recv: Access-Request packet from host my_ip port 56949, id=250, le
ngth=175
        User-Name = "Windows Phone\\test"
        NAS-Port-Type = Virtual
        ....
# Executing section authorize from file
/usr/local/etc/raddb/sites-enabled/defau
lt
+group authorize {
++? if (User-Name =~ /Windows Phone\\(.*)/)
? Evaluating (User-Name =~ /Windows Phone\\(.*)/) -> FALSE
++? if (User-Name =~ /Windows Phone\\(.*)/) -> FALSE

I really don't know why it fails.

I have tested my case in RegexBuddy, and it worked in POSIX ERE, but POSIX
BRE failed.
My FreeRadius version is 2.2.5. 
Appreciate for your help.
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