The definition of the APN field format in GTPv1 is hidden in a chain
of documents.
3GPP TS 29.060 (the GTPv1-C specification) Section 7.7.30:
> The Access Point Name contains a logical name (see 3GPP TS 23.060 [4]).
> It is coded as in the value part defined in 3GPP TS 24.008
3GPP TS 24.008 Section 10.5.6.1:
> The value part is defined in 3GPP TS 23.003.
3GPP TS 23.003 Section 9.1:
> The APN consists of one or more labels. Each label is coded as a one
> octet length field followed by that number of octets coded as 8 bit
> ASCII characters
This converts a literal APN (e.g. Label1.Label2.Label3) to a structured
field (e.g. \006Label1\006Label2\006Label3)
Signed-off-by: Andreas Schultz <aschultz@tpip.net>
After so many years of silence, we don't expect the original author to
return to the project. To make things a bit simpler for us, we convert
the coding style to what we are used to (Linux style).
The conversion was made using the 'Lindent' script which is part of the
Linux kernel.
According to 3GPP TS 29.060 recovery is optional, add command line option --norecovery to remove this field in sgsnemu
Signed-off-by: Yann BONNAMY <yann_bonnamy@yahoo.fr>
Signed-off-by: Harald Welte <laforge@gnumonks.org>
Routing Area Information is an optional Field described in 3GPP TS 29.060 7.7.3
it can be added with command line option rai, in the dot separated format MCC.MNC.LAC.RAC
example : --rai 208.10.65535.255
Signed-off-by: Yann BONNAMY <yann_bonnamy@yahoo.fr>
Signed-off-by: Harald Welte <laforge@gnumonks.org>
this patch allows to tweak any bit of the QoS field of the Create PDP context generated by sgsnemu , aligned with 10.5.6.5 of 3GPP TS 24.008 V10.0.0 (2010-09)
QoS field can be extended to "lenght 12" with option --qose1, as seen in real life on UMTS networks.
extension to lenght 13, 15 and 17 can be done with option --qose2, --qose3, --qose4, never seen IRL but allows to test 3GPP compliance of GGSN.
Signed-off-by: Yann BONNAMY <yann_bonnamy@yahoo.fr>
This adds support for the followng new GTP Information Elements:
RAT_TYPE, USER_LOC, MS_TZ, IMEI_SV
Furthermore, it allows to specify those fields as sgsnemu command line
arguments.
Some files like in sgsnemu and ggsn directory where exactly the same.
They are now moved to the same directory for easier maintenance
Signed-off-by: Emmanuel Bretelle <chantra@debuntu.org>
Relevant output of make:
sgsnemu.c: In function ‘process_options’:
sgsnemu.c:443: warning: pointer targets in passing argument 1 of
‘strncpy’ differ in signedness
/usr/include/bits/string3.h:120: note: expected ‘char * __restrict__’
but argument is of type ‘unsigned char *’
Signed-off-by: Emmanuel Bretelle <chantra@debuntu.org>
Ruben Undheim
Neels Hofmeyr
Harald Welte