errno_t kn_inject_after_http (mbuf_t otgn_data)
{
errno_t retval = 0;
mbuf_t otgn_data_dup;
u_int16_t ms = 0;
lck_rw_lock_exclusive(gMasterRecordLock);
ms = master_record.http_delay_ms;
lck_rw_unlock_exclusive(gMasterRecordLock);
retval = mbuf_dup(otgn_data, MBUF_DONTWAIT, &otgn_data_dup);
if (retval != 0) {
kn_debug("mbuf_dup returned error %d\n", retval);
return retval;
}
retval = kn_mbuf_set_tag(&otgn_data_dup, gidtag, kMY_TAG_TYPE, outgoing_direction);
if (retval != 0) {
kn_debug("kn_mbuf_set_tag returned error %d\n", retval);
return retval;
}
retval = kn_delay_pkt_inject(otgn_data, ms, outgoing_direction);
if (retval != 0) {
kn_debug("kn_delay_pkt_inject returned error %d\n", retval);
return retval;
}
return KERN_SUCCESS;
}
mbuf_t darwin_iwi3945::mergePacket(mbuf_t m)
{
mbuf_t nm,nm2;
int offset;
if(!mbuf_next(m))
{
offset = (4 - ((int)(mbuf_data(m)) & 3)) % 4; //packet needs to be 4 byte aligned
if (offset==0) return m;
IWI_DEBUG_FULL("this packet dont have mbuf_next, merge is not required\n");
goto copy_packet;
}
/* allocate and Initialize New mbuf */
nm = allocatePacket(mbuf_pkthdr_len(m));
if (nm==0) return NULL;
//if (mbuf_getpacket(MBUF_WAITOK, &nm)!=0) return NULL;
mbuf_setlen(nm,0);
mbuf_pkthdr_setlen(nm,0);
if( mbuf_next(nm)) IWI_ERR("merged mbuf_next\n");
/* merging chains to single mbuf */
for (nm2 = m; nm2; nm2 = mbuf_next(nm2)) {
memcpy (skb_put (nm, mbuf_len(nm2)), (UInt8*)mbuf_data(nm2), mbuf_len(nm2));
}
/* checking if merged or not. */
if( mbuf_len(nm) == mbuf_pkthdr_len(m) )
{
if (m!=NULL)
if (!(mbuf_type(m) == MBUF_TYPE_FREE)) freePacket(m);
m=NULL;
return nm;
}
/* merging is not completed. */
IWI_LOG("mergePacket is failed: data copy dont work collectly\n");
//IWI_LOG("orig_len %d orig_pktlen %d new_len %d new_pktlen %d\n",
// mbuf_len(m),mbuf_pkthdr_len(m),
// mbuf_len(nm),mbuf_pkthdr_len(nm) );
if (m!=NULL)
if (!(mbuf_type(m) == MBUF_TYPE_FREE)) freePacket(m);
m=NULL;
if (nm!=NULL)
if (!(mbuf_type(nm) == MBUF_TYPE_FREE) ) freePacket(nm);
nm=NULL;
return NULL;
copy_packet:
if (mbuf_dup(m, MBUF_WAITOK , &nm)!=0)
{
if (m!=NULL)
if (!(mbuf_type(m) == MBUF_TYPE_FREE)) freePacket(m);
m=NULL;
return NULL;
}
if (m!=NULL)
if (!(mbuf_type(m) == MBUF_TYPE_FREE) ) freePacket(m);
m=NULL;
return nm;
//return copyPacket(m, 0);
}
