[asterisk-ss7] bug in ss7 with linkset (slc) not equal to 0

[sai jayram AKV]

hi.
we have corrected a bug in ss7 stack when slc is not equal to 0.

File : mtp3.c
Function : set_routinglabel

Old code :

                case SS7_ITU:
                        buf[0] = rl->dpc & 0xff;
                        buf[1] = ((rl->dpc >> 8) & 0x3f) | ((rl->opc << 6) &
0xc0);
                        buf[2] = (rl->opc >> 2) & 0xff;
                        buf[3] = ((rl->opc >> 10) & 0x0f) | (rl->sls &
0xf0);
                        return 4;



Modified code:

                case SS7_ITU:
                        buf[0] = rl->dpc & 0xff;
                        buf[1] = ((rl->dpc >> 8) & 0x3f) | ((rl->opc << 6) &
0xc0);
                        buf[2] = (rl->opc >> 2) & 0xff;
                        buf[3] = ((rl->opc >> 10) & 0x0f) | ((rl->sls <<4) &
0xf0);
                        return 4;

Slc/sls should occupy upper nibble position as specified by ITU.


-- 
A.K.V.Sai jayram
Bangalore
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