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e7921f03a34b727b7e15159ecb44a66d9cd69c9b
openairinterface5g/openair2/NAS/DRIVER/MESH/common.c
T
Lionel Gauthier e7921f03a3 Changed default DRB id from 3 to 1 
With folowwing implicit rule
drb id = x => correspondind lc id = x+2, eps bearer id = x+4

Changed RLC inner structs, no more statically allocated array, now it is dynamic via malloc and collection of RLC entities are stored in a hashtable.
Changed misc simple types
Started compiling with all warning setted and treated as errors, still working on RLC and around...
Add const qualifier wherever suitable (for example param frame, module id, const pointers, etc)

Thinking about a type of context parameter in procedure calls in L2 data plane (modules id, frame, srb flag, enb flag, etc)...


git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5222 818b1a75-f10b-46b9-bf7c-635c3b92a50f
2014-03-27 17:07:39 +00:00

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/*******************************************************************************
Eurecom OpenAirInterface 2
Copyright(c) 1999 - 2010 Eurecom
This program is free software; you can redistribute it and/or modify it
under the terms and conditions of the GNU General Public License,
version 2, as published by the Free Software Foundation.
This program is distributed in the hope 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.,
51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
The full GNU General Public License is included in this distribution in
the file called "COPYING".
Contact Information
Openair Admin: openair_admin@eurecom.fr
Openair Tech : openair_tech@eurecom.fr
Forums : http://forums.eurecom.fsr/openairinterface
Address : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, France
*******************************************************************************/
/***************************************************************************
/*! \file nas_common.c
* \brief implementation of emultor tx and rx
* \author Navid Nikaein and Raymomd Knopp
* \date 2011
* \version 1.0
* \company Eurecom
* \email: navid.nikaein@eurecom.fr
*/
//#include "nas_common.h"
#include "local.h"
#include "proto_extern.h"
#ifndef NAS_NETLINK
#include "rtai_fifos.h"
#endif
//#define NAS_DEBUG_RECEIVE 1
//#define NAS_DEBUG_SEND 1
//#define NAS_DEBUG_CLASS 1
//#define NAS_ADDRESS_FIX 1
#include <linux/inetdevice.h>
#include <net/tcp.h>
#include <net/udp.h>
void nas_COMMON_receive(uint16_t dlen,
void *pdcp_sdu,
int inst,
struct classifier_entity *rclass,
nasRadioBearerId_t rb_id) {
//---------------------------------------------------------------------------
struct sk_buff *skb;
struct ipversion *ipv;
struct nas_priv *gpriv=netdev_priv(nasdev[inst]);
uint32_t odaddr,osaddr;
int i;
unsigned char protocol;
unsigned char *addr,*daddr,*saddr,*ifaddr,sn;
struct udphdr *uh;
struct tcphdr *th;
uint16_t *cksum,check;
struct iphdr *network_header;
#ifdef NAS_DEBUG_RECEIVE
printk("NAS_COMMON_RECEIVE: begin RB %d Inst %d Length %d bytes\n",rb_id,inst,dlen);
#endif
skb = dev_alloc_skb( dlen + 2 );
if(!skb)
{
printk("NAS_COMMON_RECEIVE: low on memory\n");
++gpriv->stats.rx_dropped;
return;
}
skb_reserve(skb,2);
memcpy(skb_put(skb, dlen), pdcp_sdu,dlen);
skb->dev = nasdev[inst];
#ifdef KERNEL_VERSION_GREATER_THAN_2622
skb_reset_mac_header(skb);
#else
skb->mac.raw = skb->data;
#endif
//printk("[NAC_COMMIN_RECEIVE]: Packet Type %d (%d,%d)",skb->pkt_type,PACKET_HOST,PACKET_BROADCAST);
skb->pkt_type = PACKET_HOST;
if (rclass->version != NAS_MPLS_VERSION_CODE) { // This is an IP packet
skb->ip_summed = CHECKSUM_NONE;
ipv = (struct ipversion *)skb->data;
switch (ipv->version)
{
case 6:
#ifdef NAS_DEBUG_RECEIVE
printk("NAS_COMMON_RECEIVE: receive IPv6 message\n");
#endif
#ifdef KERNEL_VERSION_GREATER_THAN_2622
skb_reset_network_header(skb);
#else
skb->nh.ipv6h = (struct ipv6hdr *)skb->data;
#endif
skb->protocol = htons(ETH_P_IPV6);
// printk("Writing packet with protocol %x\n",ntohs(skb->protocol));
break;
case 4:
#ifdef NAS_ADDRESS_FIX
// Make the third byte of both the source and destination equal to the fourth of the destination
daddr = (unsigned char *)&((struct iphdr *)skb->data)->daddr;
odaddr = ((struct iphdr *)skb->data)->daddr;
// sn = addr[3];
saddr = (unsigned char *)&((struct iphdr *)skb->data)->saddr;
osaddr = ((struct iphdr *)skb->data)->saddr;
if (daddr[0] == saddr[0]) {// same network
daddr[2] = daddr[3]; // set third byte of destination to that of local machine so that local IP stack accepts the packet
saddr[2] = daddr[3]; // set third byte of source to that of local machine so that local IP stack accepts the packet
}
else { // get the 3rd byte from device address in net_device structure
ifaddr = (unsigned char *)(&(((struct in_device *)((nasdev[inst])->ip_ptr))->ifa_list->ifa_local));
if (saddr[0] == ifaddr[0]) { // source is in same network as local machine
daddr[0] += saddr[3]; // fix address of remote destination to undo change at source
saddr[2] = ifaddr[2]; // set third byte to that of local machine so that local IP stack accepts the packet
}
else { // source is remote machine from outside network
saddr[0] -= daddr[3]; // fix address of remote source to be understood by destination
daddr[2] = daddr[3]; // fix 3rd byte of local address to be understood by IP stack of
// destination
}
}
#endif //NAS_ADDRESS_FIX
#ifdef NAS_DEBUG_RECEIVE
// printk("NAS_TOOL_RECEIVE: receive IPv4 message\n");
addr = (unsigned char *)&((struct iphdr *)skb->data)->saddr;
if (addr) {
// addr[2]^=0x01;
printk("[NAS][COMMON][RECEIVE] Source %d.%d.%d.%d\n",addr[0],addr[1],addr[2],addr[3]);
}
addr = (unsigned char *)&((struct iphdr *)skb->data)->daddr;
if (addr){
// addr[2]^=0x01;
printk("[NAS][COMMON][RECEIVE] Dest %d.%d.%d.%d\n",addr[0],addr[1],addr[2],addr[3]);
}
printk("[NAS][COMMON][RECEIVE] protocol %d\n",((struct iphdr *)skb->data)->protocol);
#endif
#ifdef KERNEL_VERSION_GREATER_THAN_2622
skb_reset_network_header(skb);
network_header = (struct iphdr *)skb_network_header(skb);
protocol = network_header->protocol;
#else
skb->nh.iph = (struct iphdr *)skb->data;
protocol=skb->nh.iph->protocol;
#endif
#ifdef NAS_DEBUG_RECEIVE
switch (protocol) {
case IPPROTO_IP:
printk("[NAS][COMMON][RECEIVE] Received Raw IPv4 packet\n");
break;
case IPPROTO_IPV6:
printk("[NAS][COMMON][RECEIVE] Received Raw IPv6 packet\n");
break;
case IPPROTO_ICMP:
printk("[NAS][COMMON][RECEIVE] Received Raw ICMP packet\n");
break;
case IPPROTO_TCP:
printk("[NAS][COMMON][RECEIVE] Received TCP packet\n");
break;
case IPPROTO_UDP:
printk("[NAS][COMMON][RECEIVE] Received UDP packet\n");
break;
default:
break;
}
#endif
#ifdef NAS_ADDRESS_FIX
#ifdef NAS_DEBUG_RECEIVE
printk("NAS_COMMON_RECEIVE: dumping the packet before the csum recalculation\n",skb->len);
for (i=0;i<skb->len;i++)
printk("%2x ",((unsigned char *)(skb->data))[i]);
printk("\n");
#endif //NAS_DEBUG_RECEIVE
#ifdef KERNEL_VERSION_GREATER_THAN_2622
network_header->check = 0;
network_header->check = ip_fast_csum((unsigned char *) network_header,
network_header->ihl);
#ifdef NAS_DEBUG_RECEIVE
printk("[NAS][COMMON][RECEIVE] IP Fast Checksum %x \n", network_header->check);
#endif
#else
skb->nh.iph->check = 0;
skb->nh.iph->check = ip_fast_csum((unsigned char *)skb->data,
skb->nh.iph->ihl);
#ifdef NAS_DEBUG_RECEIVE
printk("[NAS][COMMON][RECEIVE] IP Fast Checksum %x \n", skb->nh.iph->check);
#endif
#endif
// if (!(skb->nh.iph->frag_off & htons(IP_OFFSET))) {
switch(protocol)
{
case IPPROTO_TCP:
#ifdef KERNEL_VERSION_GREATER_THAN_2622
cksum = (uint16_t*)&(((struct tcphdr*)((network_header + (network_header->ihl<<2))))->check);
//check = csum_tcpudp_magic(((struct iphdr *)network_header)->saddr, ((struct iphdr *)network_header)->daddr, tcp_hdrlen(skb), IPPROTO_TCP, ~(*cksum));
#else
cksum = (uint16_t*)&(((struct tcphdr*)((skb->data + (skb->nh.iph->ihl<<2))))->check);
//check = csum_tcpudp_magic(((struct iphdr *)skb->data)->saddr, ((struct iphdr *)skb->data)->daddr,tcp_hdrlen(skb), IPPROTO_TCP, ~(*cksum));
#endif
#ifdef NAS_DEBUG_RECEIVE
printk("[NAS][COMMON] Inst %d TCP packet calculated CS %x, CS = %x (before), SA (%x)%x, DA (%x)%x\n",
inst,
network_header->check,
*cksum,
osaddr,
((struct iphdr *)skb->data)->saddr,
odaddr,
((struct iphdr *)skb->data)->daddr);
#endif
check = csum_tcpudp_magic(((struct iphdr *)skb->data)->saddr, ((struct iphdr *)skb->data)->daddr,0,0, ~(*cksum));
*cksum = csum_tcpudp_magic(~osaddr, ~odaddr, 0, 0, ~check);
#ifdef NAS_DEBUG_RECEIVE
printk("[NAS][COMMON] Inst %d TCP packet NEW CS %x\n",
inst,
*cksum);
#endif
break;
case IPPROTO_UDP:
#ifdef KERNEL_VERSION_GREATER_THAN_2622
cksum = (uint16_t*)&(((struct udphdr*)((network_header + (network_header->ihl<<2))))->check);
// check = csum_tcpudp_magic(((struct iphdr *)network_header)->saddr, ((struct iphdr *)network_header)->daddr, udp_hdr(skb)->len, IPPROTO_UDP, ~(*cksum));
#else
cksum = (uint16_t*)&(((struct udphdr*)((skb->data + (skb->nh.iph->ihl<<2))))->check);
//check = csum_tcpudp_magic(((struct iphdr *)skb->data)->saddr, ((struct iphdr *)skb->data)->daddr, udp_hdr(skb)->len, IPPROTO_UDP, ~(*cksum));
#endif
#ifdef NAS_DEBUG_RECEIVE
printk("[NAS][COMMON] Inst %d UDP packet CS = %x (before), SA (%x)%x, DA (%x)%x\n",
inst,
*cksum,
osaddr,
((struct iphdr *)skb->data)->saddr,
odaddr,
((struct iphdr *)skb->data)->daddr);
#endif
check = csum_tcpudp_magic(((struct iphdr *)skb->data)->saddr, ((struct iphdr *)skb->data)->daddr, 0,0, ~(*cksum));
*cksum= csum_tcpudp_magic(~osaddr, ~odaddr,0,0, ~check);
//*cksum= csum_tcpudp_magic(~osaddr, ~odaddr,udp_hdr(skb)->len, IPPROTO_UDP, ~check);
#ifdef NAS_DEBUG_RECEIVE
printk("[NAS][COMMON] Inst %d UDP packet NEW CS %x\n",
inst,
*cksum);
#endif
// if ((check = *cksum) != 0) {
// src, dst, len, proto, sum
// }
break;
default:
break;
}
// }
//#endif // KERNEL VERSION > 22
#endif //NAS_ADDRESS_FIX
skb->protocol = htons(ETH_P_IP);
// printk("[NAS][COMMON] Writing packet with protocol %x\n",ntohs(skb->protocol));
break;
default:
printk("NAS_COMMON_RECEIVE: begin RB %d Inst %d Length %d bytes\n",rb_id,inst,dlen);
printk("[NAS][COMMON] Inst %d: receive unknown message (version=%d)\n",inst,ipv->version);
}
}
else { // This is an MPLS packet
#ifdef NAS_DEBUG_RECEIVE
printk("NAS_COMMON_RECEIVE: Received an MPLS packet on RB %d\n",rb_id);
#endif
skb->protocol = htons(ETH_P_MPLS_UC);
}
++gpriv->stats.rx_packets;
gpriv->stats.rx_bytes += dlen;
#ifdef NAS_DEBUG_RECEIVE
printk("NAS_COMMON_RECEIVE: sending packet of size %d to kernel\n",skb->len);
for (i=0;i<skb->len;i++)
printk("%2x ",((unsigned char *)(skb->data))[i]);
printk("\n");
#endif //NAS_DEBUG_RECEIVE
netif_rx(skb);
#ifdef NAS_DEBUG_RECEIVE
printk("NAS_COMMON_RECEIVE: end\n");
#endif
}
//---------------------------------------------------------------------------
// Delete the data
void nas_COMMON_del_send(struct sk_buff *skb, struct cx_entity *cx, struct classifier_entity *sp,int inst){
struct nas_priv *priv=netdev_priv(nasdev[inst]);
//---------------------------------------------------------------------------
++priv->stats.tx_dropped;
}
//---------------------------------------------------------------------------
// Request the transfer of data (QoS SAP)
void nas_COMMON_QOS_send(struct sk_buff *skb, struct cx_entity *cx, struct classifier_entity *gc,int inst){
//---------------------------------------------------------------------------
struct pdcp_data_req_header_s pdcph;
struct nas_priv *priv=netdev_priv(nasdev[inst]);
#ifdef LOOPBACK_TEST
int i;
#endif
unsigned int bytes_wrote;
unsigned char j;
// Start debug information
#ifdef NAS_DEBUG_SEND
printk("NAS_COMMON_QOS_SEND - inst %d begin \n",inst);
#endif
// if (cx->state!=NAS_STATE_CONNECTED) // <--- A REVOIR
// {
// priv->stats.tx_dropped ++;
// printk("NAS_QOS_SEND: No connected, so message are dropped \n");
// return;
// }
if (skb==NULL){
#ifdef NAS_DEBUG_SEND
printk("NAS_COMMON_QOS_SEND - input parameter skb is NULL \n");
#endif
return;
}
if (gc==NULL){
#ifdef NAS_DEBUG_SEND
printk("NAS_COMMON_QOS_SEND - input parameter gc is NULL \n");
#endif
return;
}
if (cx==NULL){
#ifdef NAS_DEBUG_SEND
printk("NAS_COMMON_QOS_SEND - input parameter cx is NULL \n");
#endif
return;
}
// End debug information
if (gc->rb==NULL)
{
gc->rb=nas_COMMON_search_rb(cx, gc->rab_id);
if (gc->rb==NULL)
{
++priv->stats.tx_dropped;
printk("NAS_COMMON_QOS_SEND: No corresponding Radio Bearer, so message are dropped, rab_id=%u \n", gc->rab_id);
return;
}
}
#ifdef NAS_DEBUG_SEND
printk("NAS_COMMON_QOS_SEND #1 :");
printk("lcr %u, rab_id %u, rab_id %u, skb_len %d\n", cx->lcr, (gc->rb)->rab_id, gc->rab_id,skb->len);
nas_print_classifier(gc);
#endif
pdcph.data_size = skb->len;
pdcph.rb_id = (gc->rb)->rab_id;
pdcph.inst = inst;
#ifdef NAS_NETLINK
bytes_wrote = nas_netlink_send((char *)&pdcph,NAS_PDCPH_SIZE);
#ifdef NAS_DEBUG_SEND
printk("[NAS] Wrote %d bytes (header for %d byte skb) to PDCP via netlink\n",
bytes_wrote,skb->len);
#endif
#else
bytes_wrote = rtf_put(NAS2PDCP_FIFO, &pdcph, NAS_PDCPH_SIZE);
#ifdef NAS_DEBUG_SEND
printk("[NAS] Wrote %d bytes (header for %d byte skb) to PDCP fifo\n",
bytes_wrote,skb->len);
#endif
#endif //NAS_NETLINK
if (bytes_wrote != NAS_PDCPH_SIZE)
{
printk("NAS_COMMON_QOS_SEND: problem while writing PDCP's header (bytes wrote = %d to fifo %d)\n",bytes_wrote,NAS2PDCP_FIFO);
printk("rb_id %d, Wrote %d, Header Size %lu\n", pdcph.rb_id , bytes_wrote, NAS_PDCPH_SIZE);
#ifndef NAS_NETLINK
rtf_reset(NAS2PDCP_FIFO);
#endif //NAS_NETLINK
return;
}
#ifdef NAS_NETLINK
bytes_wrote += nas_netlink_send((char *)skb->data,skb->len);
#else
bytes_wrote += rtf_put(NAS2PDCP_FIFO, skb->data, skb->len);
#endif //NAS_NETLINK
if (bytes_wrote != skb->len+NAS_PDCPH_SIZE)
{
printk("NAS_COMMON_QOS_SEND: Inst %d, RB_ID %d: problem while writing PDCP's data, bytes_wrote = %d, Data_len %d, PDCPH_SIZE %lu\n",
inst,
pdcph.rb_id,
bytes_wrote,
skb->len,
NAS_PDCPH_SIZE); // congestion
#ifndef NAS_NETLINK
rtf_reset(NAS2PDCP_FIFO);
#endif //NAS_NETLINK
return;
}
#ifdef NAS_DEBUG_SEND
printk("NAS_SEND: Sending packet of size %d to PDCP \n",skb->len);
for (j=0;j<skb->len;j++)
printk("%2x ",((unsigned char *)(skb->data))[j]);
printk("\n");
#endif
priv->stats.tx_bytes += skb->len;
priv->stats.tx_packets ++;
#ifdef NAS_DEBUG_SEND
printk("NAS_COMMON_QOS_SEND - end \n");
#endif
}
#ifndef NAS_NETLINK
//---------------------------------------------------------------------------
void nas_COMMON_QOS_receive(){
//---------------------------------------------------------------------------
uint8_t sapi;
struct pdcp_data_ind_header_s pdcph;
unsigned char data_buffer[2048];
struct classifier_entity *rclass;
struct nas_priv *priv;
int bytes_read;
// Start debug information
#ifdef NAS_DEBUG_RECEIVE
printk("NAS_COMMON_QOS_RECEIVE - begin \n");
#endif
// End debug information
bytes_read = rtf_get(PDCP2NAS_FIFO,&pdcph, NAS_PDCPH_SIZE);
while (bytes_read>0) {
if (bytes_read != NAS_PDCPH_SIZE)
{
printk("NAS_COMMON_QOS_RECEIVE: problem while reading PDCP header\n");
return;
}
priv=netdev_priv(nasdev[pdcph.inst]);
rclass = nas_COMMON_search_class_for_rb(pdcph.rb_id,priv);
bytes_read+= rtf_get(PDCP2NAS_FIFO,
data_buffer,
pdcph.data_size);
#ifdef NAS_DEBUG_RECEIVE
printk("NAS_COMMON_QOS_RECEIVE - Got header for RB %d, Inst %d \n",
pdcph.rb_id,
pdcph.inst);
#endif
if (rclass) {
#ifdef NAS_DEBUG_RECEIVE
printk("[NAS][COMMON] Found corresponding connection in classifier for RAB\n");
#endif //NAS_DEBUG_RECEIVE
nas_COMMON_receive(pdcph.data_size,
(void *)data_buffer,
pdcph.inst,
rclass,
pdcph.rb_id);
}
bytes_read = rtf_get(PDCP2NAS_FIFO, &pdcph, NAS_PDCPH_SIZE);
}
#ifdef NAS_DEBUG_RECEIVE
printk("NAS_COMMON_QOS_RECEIVE - end \n");
#endif
}
#else
void nas_COMMON_QOS_receive(struct nlmsghdr *nlh)
{
struct pdcp_data_ind_header_s *pdcph = (struct pdcp_data_ind_header_s *)NLMSG_DATA(nlh);
struct classifier_entity *rclass;
struct nas_priv *priv;
priv = netdev_priv(nasdev[pdcph->inst]);
#ifdef NAS_DEBUG_RECEIVE
printk("[NAS][COMMON][NETLINK] QOS receive from PDCP, size %d, rab %d, inst %d\n",
pdcph->data_size,pdcph->rb_id,pdcph->inst);
#endif //NAS_DEBUG_RECEIVE
rclass = nas_COMMON_search_class_for_rb(pdcph->rb_id,priv);
if (rclass) {
#ifdef NAS_DEBUG_RECEIVE
printk("[NAS][COMMON][NETLINK] Found corresponding connection in classifier for RAB\n");
#endif //NAS_DEBUG_RECEIVE
nas_COMMON_receive(pdcph->data_size,
(unsigned char *)NLMSG_DATA(nlh) + NAS_PDCPH_SIZE,
pdcph->inst,
rclass,
pdcph->rb_id);
}
}
#endif //NAS_NETLINK
//---------------------------------------------------------------------------
struct cx_entity *nas_COMMON_search_cx(nasLocalConnectionRef_t lcr,struct nas_priv *priv){
//---------------------------------------------------------------------------
#ifdef NAS_DEBUG_CLASS
printk("NAS_COMMON_SEARCH_CX - lcr %d\n",lcr);
#endif
if (lcr<NAS_CX_MAX)
return priv->cx+lcr;
else
return NULL;
}
//---------------------------------------------------------------------------
// Search a Radio Bearer
struct rb_entity *nas_COMMON_search_rb(struct cx_entity *cx, nasRadioBearerId_t rab_id){
//---------------------------------------------------------------------------
struct rb_entity *rb;
#ifdef NAS_DEBUG_CLASS
printk("NAS_COMMON_SEARCH_RB - rab_id %d\n", rab_id);
#endif
for (rb=cx->rb; rb!=NULL; rb=rb->next) {
#ifdef NAS_DEBUG_CLASS
printk("SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS\n");
printk("NAS_COMMON_SEARCH_RB - rab_id %d Comparing rb_entity.rab_id %u \n", rb->rab_id);
printk("NAS_COMMON_SEARCH_RB - rab_id %d Comparing rb_entity.sapi %u \n", rb->sapi;
printk("NAS_COMMON_SEARCH_RB - rab_id %d Comparing rb_entity.qos %u \n", rb->qos;
printk("NAS_COMMON_SEARCH_RB - rab_id %d Comparing rb_entity.state %u \n", rb->state;
printk("NAS_COMMON_SEARCH_RB - rab_id %d Comparing rb_entity.retry %u \n", rb->retry;
printk("NAS_COMMON_SEARCH_RB - rab_id %d Comparing rb_entity.countimer %u \n\n", rb->countimer;);
#endif
if (rb->rab_id==rab_id)
return rb;
}
return NULL;
}
//
// Search for a classifier with corresponding radio bearer
struct classifier_entity *nas_COMMON_search_class_for_rb(nasRadioBearerId_t rab_id,struct nas_priv *priv) {
struct rb_entity *rb;
int dscp;
struct classifier_entity *rclass;
#ifdef NAS_DEBUG_CLASS
printk("[NAS][COMMON] NAS_COMMON_SEARCH_CLASS_FOR_RB - rab_id %d\n", rab_id);
#endif
for (dscp=0;dscp<NAS_DSCP_MAX;dscp++) {
// printk("[NAS][COMMON] priv->rclassifier[%d] = %p\n",dscp,priv->rclassifier[dscp]);
for (rclass=priv->rclassifier[dscp]; rclass!=NULL; rclass=rclass->next) {
#ifdef NAS_DEBUG_CLASS
printk("[NAS][COMMON] NAS_COMMON_SEARCH_CLASS_FOR_RB - dscp %d, rb %d\n", dscp,rclass->rab_id);
#endif
if (rclass->rab_id==rab_id)
return rclass;
}
}
return NULL;
}
//---------------------------------------------------------------------------
struct rb_entity *nas_COMMON_add_rb(struct cx_entity *cx, nasRadioBearerId_t rab_id, nasQoSTrafficClass_t qos){
//--------------------------------------------------------------------------
struct rb_entity *rb;
#ifdef NAS_DEBUG_CLASS
printk("NAS_COMMON_ADD_RB - begin for rab_id %d , qos %d\n", rab_id, qos );
#endif
if (cx==NULL){
#ifdef NAS_DEBUG_CLASS
printk("NAS_COMMON_ADD_RB - input parameter cx is NULL \n");
#endif
return NULL;
}
rb=nas_COMMON_search_rb(cx, rab_id);
if (rb==NULL)
{
rb=(struct rb_entity *)kmalloc(sizeof(struct rb_entity), GFP_KERNEL);
if (rb!=NULL)
{
rb->retry=0;
rb->countimer=NAS_TIMER_IDLE;
rb->rab_id=rab_id;
// rb->rab_id=rab_id+(32*cx->lcr);
#ifdef NAS_DEBUG_DC
printk("NAS_COMMON_ADD_RB: rab_id=%u, mt_id=%u\n",rb->rab_id, cx->lcr);
#endif
rb->qos=qos;
rb->sapi=NAS_RAB_INPUT_SAPI;
rb->state=NAS_IDLE;
rb->next=cx->rb;
cx->rb=rb;
++cx->num_rb;
}
else
printk("NAS_ADD_CTL_RB: no memory\n");
}
#ifdef NAS_DEBUG_CLASS
printk("NAS_COMMON_ADD_RB - end \n" );
#endif
return rb;
}
//---------------------------------------------------------------------------
void nas_COMMON_flush_rb(struct cx_entity *cx){
//---------------------------------------------------------------------------
struct rb_entity *rb;
struct classifier_entity *gc;
uint8_t dscp;
// End debug information
#ifdef NAS_DEBUG_CLASS
printk("NAS_COMMON_FLUSH_RB - begin\n");
#endif
if (cx==NULL){
#ifdef NAS_DEBUG_CLASS
printk("NAS_COMMON_FLUSH_RB - input parameter cx is NULL \n");
#endif
return;
}
// End debug information
for (rb=cx->rb; rb!=NULL; rb=cx->rb){
printk("NAS_COMMON_FLUSH_RB: del rab_id %u\n", rb->rab_id);
cx->rb=rb->next;
kfree(rb);
}
cx->num_rb=0;
cx->rb=NULL;
for(dscp=0; dscp<NAS_DSCP_MAX; ++dscp)
{
for (gc=cx->sclassifier[dscp]; gc!=NULL; gc=gc->next)
gc->rb=NULL;
}
#ifdef NAS_DEBUG_CLASS
printk("NAS_COMMON_FLUSH_RB - end\n");
#endif
}
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