laforge has uploaded this change for review. ( 
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/15201


Change subject: remove ogslib dependency from snow
......................................................................

remove ogslib dependency from snow

* don't use ogslib specific header files
* don't use ogs_{malloc,free} but simply use the stack

Change-Id: I5604c594934b03d2fd83e1e465fc150fc542a475
---
M mme/snow-3g.c
M mme/snow-3g.h
2 files changed, 2 insertions(+), 5 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks 
refs/changes/01/15201/1

diff --git a/mme/snow-3g.c b/mme/snow-3g.c
index 992b107..60bdffd 100644
--- a/mme/snow-3g.c
+++ b/mme/snow-3g.c
@@ -381,7 +381,7 @@
        int n = ( length + 31 ) / 32;
        int i=0;
        int lastbits = (8-(length%8)) % 8;
-       u32 *KS;
+       u32 KS[n];

        /*Initialisation*/
        /* Load the confidentiality key for SNOW 3G initialization as in section
@@ -399,7 +399,6 @@

        /* Run SNOW 3G algorithm to generate sequence of key stream bits KS*/
        snow_3g_initialize(K,IV);
-       KS = (u32 *)ogs_malloc(4*n);
        snow_3g_generate_key_stream(n,(u32*)KS);

        /* Exclusive-OR the input data with keystream to generate the output bit
@@ -412,8 +411,6 @@
                data[4*i+3] ^= (u8) (KS[i] ) & 0xff;
        }

-       ogs_free(KS);
-
        /* zero last bits of data in case its length is not byte-aligned
           this is an addition to the C reference code, which did not handle it 
*/
        if (lastbits)
diff --git a/mme/snow-3g.h b/mme/snow-3g.h
index a5320bb..0ba6a84 100644
--- a/mme/snow-3g.h
+++ b/mme/snow-3g.h
@@ -1,7 +1,7 @@
 #ifndef __SNOW_3G__
 #define __SNOW_3G__

-#include "ogs-core.h"
+#include <stdint.h>

 #ifdef __cplusplus
 extern "C" {

--
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: I5604c594934b03d2fd83e1e465fc150fc542a475
Gerrit-Change-Number: 15201
Gerrit-PatchSet: 1
Gerrit-Owner: laforge <lafo...@gnumonks.org>
Gerrit-MessageType: newchange

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