[PATCH] libosmocore[master]: gsm0480: increase the MAX_LEN_USSD_STRING to 182

[Vadim Yanitskiy]

Hello Jenkins Builder,

I'd like you to reexamine a change.  Please visit

    https://gerrit.osmocom.org/5712

to look at the new patch set (#2).

gsm0480: increase the MAX_LEN_USSD_STRING to 182

According to the GSM 04.80 (version 5.0.0) specification Annex A
"Expanded ASN.1 Module "SS-Protocol", the maximum size of a USSD
OCTET STRING is 160 bytes.

Thus according to ETSI TS 123 038 (version 10.0.0) specification
6.1.2.3 "USSD packing of 7 bit characters", in 160 octets, it's
possible to pack (160 * 8) / 7 = 182.8, that is 182 characters.
The remaining 6 bits are set to zero.

Change-Id: I6dead74f9ecea079752ff2400cdaf7c30187784e
---
M include/osmocom/gsm/gsm0480.h
1 file changed, 1 insertion(+), 1 deletion(-)


  git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/12/5712/2

diff --git a/include/osmocom/gsm/gsm0480.h b/include/osmocom/gsm/gsm0480.h
index 781d8d7..7811c9e 100644
--- a/include/osmocom/gsm/gsm0480.h
+++ b/include/osmocom/gsm/gsm0480.h
@@ -7,7 +7,7 @@
 #include <osmocom/gsm/protocol/gsm_04_08.h>
 #include <osmocom/gsm/protocol/gsm_04_80.h>
 
-#define MAX_LEN_USSD_STRING	31
+#define MAX_LEN_USSD_STRING	182
 
 /* deprecated */
 struct ussd_request {

-- 
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I6dead74f9ecea079752ff2400cdaf7c30187784e
Gerrit-PatchSet: 2
Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Owner: Vadim Yanitskiy <axilirator at gmail.com>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: Max <msuraev at sysmocom.de>
Gerrit-Reviewer: Vadim Yanitskiy <axilirator at gmail.com>