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/*
* Ouroboros - Copyright (C) 2016
*
* Protocol Control Information
*
* Dimitri Staessens <dimitri.staessens@intec.ugent.be>
* Sander Vrijders <sander.vrijders@intec.ugent.be>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
struct pci {
uint8_t * src_addr;
uint8_t * dst_addr;
uint8_t * pdu_length;
uint8_t * qos_id;
uint8_t * seqnr;
uint8_t * pad_h;
uint8_t * pad_t;
uint8_t head_sz;
uint8_t tail_sz;
};
pci_t * pci_create(struct dtp_const * dtc)
{
int i = 0;
if (dtc == NULL)
return NULL;
struct pci * p = malloc(sizeof pci);
if (p == NULL)
return NULL:
p->src_addr =NULL;
p->dst_addr = NULL;
p->pdu_length = NULL;
p->qos_id = NULL;
p->seqnr = NULL;
p->pad_h = NULL;
p->pad_t = NULL;
head_sz = 0;
tail_sz = 0;
return p;
}
/* policy... one could reorder the data fields
exercise left to the idiot that cares */
int * pci_init(pci_t * pci,
d_buff_t * dub,
struct dtp_const * dtc,
struct dup_const * dupc)
{
uint8_t * pci_head;
uint8_t * pci_tail;
/* nastiness ahead, all members are uint8_t's */
uint8_t * n = (uint8_t *) dtc;
for (i=0; i < sizeof *dtc; ++i)
n[i] & 0x80 ? tail_sz += n[i] & 0x80:
head_sz += n[i];
head_sz += n[0] & 0x80 ? n[0] : 0; /* dst_addr */
n = (uint8_t *) dupc;
for (i=0; i < sizeof *dupc; ++i)
n[i] & 0x80 ? tail_sz += n[i] & 0x80 :
head_sz += n[i];
tail_sz += n[0] & 0x80 ? n[0] : 0; /* dst_addr */
/* end of nastiness */
pci_head = du_buff_head_alloc(dub, head_sz);
pci_tail = du_buff_tail_alloc(dub, tail_sz);
LOG_MISSING();
}
void pci_destroy(pci_t * pci)
{
free (pci);
}
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