On May 11, 2007, at 8:26 PM, sai jayram AKV wrote: > 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. Good catch. I just confirmed the bug and committed a fix to it. Matthew Fredrickson