allow to clean the shared and private info of a test scenario in order to be able to re-trigger it without restart kamailio
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I am forking a call to multiple destinations and want to keep the only branch which sends quicker provisional 180/183 reply and cancel the remaining branches. Below is my related cfg snippet.
modparam("tm", "failure_reply_mode", 3)
modparam("tm", "fr_timer", 30000)
modparam("tm", "fr_inv_timer", 120000)
modparam("tm", "cancel_b_method", 2)
...
route[SIPOUT] {
if (uri==myself) return;
append_hf("P-hint: outbound\r\n");
append_branch();
append_branch();
route(RELAY);
exit;
}
onreply_route[MANAGE_REPLY] {
xdbg("incoming reply\n");
if(status=~"[12][0-9][0-9]") {
xlog("L_INFO","Received $rs (IP:$si:$sp)\n");
if(status=~"18[03]"){
t_cancel_branches("others");
xlog("L_INFO","cancelled all other branches\n");
}
route(NATMANAGE);
}
}
...
But I see kamailio does not instantly send CANCEL to other branches after it has received 180/180 from any branch.
Kamailio is sending CANCEL to other branches after they start sending 180/183 one by one.
I want to cancel other brances instantly as soon as i get reply from any other branch.
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Starting Kamailio (4.4 with branch updates through e43d82d applied) with the following systemd unit file, native systemd/journald logging doesn't work as expected. I *do* get core logging when I use
```
log_engine_type="systemd"
loadmodule "log_systemd.so"
```
but `xlog` and `sd_journal_print` *don't* send anything to the journal.
When I comment out `log_engine_type`, keeping the log_systemd.so module loaded, `sd_journal_print` *does* log the messages properly to the systemd journal, `xlog` and core startup messages are sent to syslog.
If I change the service to `Type=simple` and add the `-D` option to `ExecStart` to disable forking, then logging to systemd via `xlog` and `sd_journal_print` works, but TCP/TLS listeners aren't created.
```
[Unit]
Description=Kamailio SIP Server
Documentation=man:kamailio(8) http://www.kamailio.org/
After=syslog.target network-online.target
Wants=network-online.target
[Service]
Type=forking
User=kamailio
Environment=SHM_SIZE=64
Environment=PKG_SIZE=8
ExecStartPre=/usr/sbin/kamailio -c
ExecStart=/usr/sbin/kamailio -m $SHM_SIZE -M $PKG_SIZE -P /run/kamailio/kamailio.pid
PIDFile=/run/kamailio/kamailio.pid
Restart=on-failure
RestartSec=30
RuntimeDirectory=kamailio
RuntimeDirectoryMode=0750
[Install]
WantedBy=multi-user.target
```
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### Description
<!--
Explain what you did, what you expected to happen, and what actually happened.
-->
I received a wireshark trace from a team member showing that a tel: uri was translated to a sip: uri in a very strange (invalid) way:
INVITE tel:491234567891;phone-context=ims.mnc001.mcc001.3gppnetwork.org
Was translated to:
INVITE sip:491234567891;phone-context=ims.mnc001.mcc001.3gppnetwork.org@ims.mnc001.mcc001.3gppnetwork.org;user=phone
### Troubleshooting
I first thought this was definitely an error, and only the phone number should be copied to the sip: uri. But, on further reading of the specification, (https://www.ietf.org/rfc/rfc3261.txt), I see that it is in fact legal to leave all parameters in. Though, when the phone-context parameter is simply a domain, it would at least seem the cleanest thing would be to remove it when the exact same domain is also inserted after the @ in the sip message.
So, looking to find where the message is translated, I saw in the scscf.cfg configuration file that there is a translation specified.
I found that "tel2sip" is mapped to the C function of the same name tel2sip()
In this function, the translation will do exactly what I found in the trace, in other words, it will leave in all parameters separated by semi-colon, inserted before the @ symbol.
But, reading the spec, I see that the spec is not being followed in any case. The spec states that all parameters included when translating, must be switched to alphabetic order, with the exception that
isdn-subaddress and post-dial, must occur first and in that order. There is no code in tel2sip() to perform that sorting.
Also, the parser removes '(', ')', '.', and '-' in the phone number, as specified, but, these same characters could be scattered anywhere in invalid places, and they are just silently removed, '+' can scattered anywhere and it is just left alone, Other characters can be scattered anywhere and they will just be left as-is, no error. So, I feel there should be some minimal checking of the phone number, trying to follow the spec (if we could just execute the BNF from the spec!).
#### Reproduction
<!--
If the issue can be reproduced, describe how it can be done.
-->
This can be reproduced by sending a tel: uri with parameters inserted separated by semicolon.
#### Debugging Data
<!--
If you got a core dump, use gdb to extract troubleshooting data - full backtrace,
local variables and the list of the code at the issue location.
gdb /path/to/kamailio /path/to/corefile
bt full
info locals
list
If you are familiar with gdb, feel free to attach more of what you consider to
be relevant.
-->
```
(none)
```
#### Log Messages
<!--
Check the syslog file and if there are relevant log messages printed by Kamailio, add them next, or attach to issue, or provide a link to download them (e.g., to a pastebin site).
-->
```
(none)
```
#### SIP Traffic
<!--
If the issue is exposed by processing specific SIP messages, grab them with ngrep or save in a pcap file, then add them next, or attach to issue, or provide a link to download them (e.g., to a pastebin site).
-->
```
See attached file
```
### Possible Solutions
<!--
If you found a solution or workaround for the issue, describe it. Ideally, provide a pull request with a fix.
-->
The solution would be to modify tel2sip(), adding the sorting of parameters, putting the two exceptions first if they exist, before inserting back into the string.
We should also throw errors on obvious bad formatting and ilegal characters, etc, in the input tel: uri
Should we remove the "phone-context" if it is a domain and also exactly the same as the domain inserted after the @?
### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
version: kamailio 5.0.0-dev5 (x86_64/linux) da4ef4-dirty
flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: da4ef4 -dirty
compiled on 10:37:40 May 12 2017 with gcc 5.4.0
```
SIP spec:
https://www.ietf.org/rfc/rfc3261.txtWireshark output:
![wireshark-tel2sip](https://user-images.githubusercontent.com/4886876/27705203-cfd3c150-5cd2-11e7-9f77-1664a51e7ac3.png)
```
In RFC 3966, Tel URI format:
The "tel" URI has the following syntax:
telephone-uri = "tel:" telephone-subscriber
telephone-subscriber = global-number / local-number
global-number = global-number-digits *par
local-number = local-number-digits *par context *par
par = parameter / extension / isdn-subaddress
isdn-subaddress = ";isub=" 1*uric
extension = ";ext=" 1*phonedigit
context = ";phone-context=" descriptor
descriptor = domainname / global-number-digits
global-number-digits = "+" *phonedigit DIGIT *phonedigit
local-number-digits =
*phonedigit-hex (HEXDIG / "*" / "#")*phonedigit-hex
domainname = *( domainlabel "." ) toplabel [ "." ]
domainlabel = alphanum
/ alphanum *( alphanum / "-" ) alphanum
toplabel = ALPHA / ALPHA *( alphanum / "-" ) alphanum
parameter = ";" pname ["=" pvalue ]
pname = 1*( alphanum / "-" )
pvalue = 1*paramchar
paramchar = param-unreserved / unreserved / pct-encoded
unreserved = alphanum / mark
mark = "-" / "_" / "." / "!" / "~" / "*" /
"'" / "(" / ")"
pct-encoded = "%" HEXDIG HEXDIG
param-unreserved = "[" / "]" / "/" / ":" / "&" / "+" / "$"
phonedigit = DIGIT / [ visual-separator ]
phonedigit-hex = HEXDIG / "*" / "#" / [ visual-separator ]
visual-separator = "-" / "." / "(" / ")"
alphanum = ALPHA / DIGIT
reserved = ";" / "/" / "?" / ":" / "@" / "&" /
"=" / "+" / "$" / ","
uric = reserved / unreserved / pct-encoded
```
* **Operating System**:
<!--
Details about the operating system, the type: Linux (e.g.,: Debian 8.4, Ubuntu 16.04, CentOS 7.1, ...), MacOS, xBSD, Solaris, ...;
Kernel details (output of `uname -a`)
-->
```
# uname -a
Linux epc-enablers 4.4.0-51-generic #72-Ubuntu SMP Thu Nov 24 18:29:54 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
```
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We have avp_copy on avpops module but we don’t have anything to copy xavps.
```
// copy all the content of an avp to a xavp
$xavp(a[0]=>b) = $(avp(x)[*]);
// deleting left content
$xavp(a[0]=>b[*]) = $(avp(x)[*]);
// copy xavp to a xavp with index
$xavp(a[0]) = $xavp(b[1]);
// all
$xavp(a[*]) = $xavp(b[*]);
// copy all content of a xavp to a avp
$avp(x) = $xavp(a[0]=>b[*]);
```
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The PV _$T_reply_last_ is supposed to return the _previous_ reply status. Since commit b7c588dff06 to fix #315 this PV returns the _current_ reply status.
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### Description
Not shure is this relevant issue.
according to rfc3261:
> When a tag is generated by a UA for insertion into a request or
> response, it MUST be globally unique and cryptographically random
> with at least 32 bits of randomness.
Kamailio has 16 instead and distribution is not good.
I look at tags for 419485 sip flows (different callid) and table below (top keys ordered by count):
tag suffix; count for different flows with this suffix
ed54 6258
d118 5988
56ce 5923
a7a5 5220
de51 2150
82d8 1143
cf52 890
af92 740
7b5f 534
85f7 307
e553 163
7f7e 138
1d55 130
1afe 62
5a69 43
7caa 18
8474 18
9db2 18
11d3 18
f9ff 18
5420 17
dae6 17
908d 17
ede4 17
09ee 17
96be 17
25dc 17
af6d 16
2506 16
3da0 16
f161 16
1c29 16
#### SIP Traffic
To: <sip:039*101@host:5071>;tag=555d2c3eafafcba8ac92b676e91bb6ed.58eb
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i try script:
```
$var(some_string) = 'a=foo1;b=foo2;c=foo3,4,5;d=3';
$var(c_value) = $(var(some_string){param.value,c,;});
xlog("L_INFO", "'c' param from '$var(some_string)' is '$var(c_value)'");
```
in log:
> 'c' param from 'a=foo1;b=foo2;c=foo3,4,5;d=3' is 'foo3'
Has this behaviour any reason? or it's possible to delete comma from stop list (and use separator parameter for comma-delimited list)?
```
diff --git a/parser/parse_param.c b/parser/parse_param.c
index b9e0fbc..e7784c8 100644
--- a/parser/parse_param.c
+++ b/parser/parse_param.c
@@ -355,7 +355,6 @@ static inline int parse_token_param(str* _s, str* _r, char separator)
case '\t':
case '\r':
case '\n':
- case ',':
/* So if you find
* any of them
* stop iterating
```
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