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encoding: Fixes TMSI vs MI bit selection in repeated page info 

Change-Id: Iddb00b9133f523f4ba09c8f1fc5694e62dc46fbf
This commit is contained in:
JF Dionne 2016-07-26 15:16:08 -04:00 committed by Harald Welte
parent fa3085b45e
commit 1beed38b54
1 changed files with 15 additions and 1 deletions
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16
src/encoding.cpp
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@ -1066,6 +1066,20 @@ unsigned Encoding::write_packet_paging_request(bitvec * dest)
return wp;
}
/* 3GPP TS 44.060 § 11.2.10:
< Repeated Page info struct > ::=
{ 0 -- Page request for TBF establishment
{ 0 < PTMSI : bit (32) >
| 1 < Length of Mobile Identity contents : bit (4) >
< Mobile Identity : octet (val (Length of Mobile Identity contents)) > }
| 1 -- Page request for RR conn. establishment
{ 0 < TMSI : bit (32) >
| 1 < Length of Mobile Identity contents : bit (4) >
< Mobile Identity : octet (val (Length of Mobile Identity contents)) > }
< CHANNEL_NEEDED : bit (2) >
{ 0 | 1 < eMLPP_PRIORITY : bit (3) > }
}
*/
unsigned Encoding::write_repeated_page_info(bitvec * dest, unsigned& wp, uint8_t len,
uint8_t *identity, uint8_t chan_needed)
{
@ -1078,7 +1092,7 @@ unsigned Encoding::write_repeated_page_info(bitvec * dest, unsigned& wp, uint8_t
identity++;
len--;
} else {
bitvec_write_field(dest, &wp,0x0,1); // MI
bitvec_write_field(dest, &wp,0x1,1); // MI
bitvec_write_field(dest, &wp,len,4); // MI len
}
while (len) {