maki/openairinterface5g
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
ca4e85553fb63a67e192ed13ea16aa1d716ff3da
openairinterface5g/openair2/NETWORK_DRIVER/MESH/common.c
T
laurent 80cd6940af modifications
2019-12-05 04:53:56 +01:00

703 lines
21 KiB
C
Raw Blame History

/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file common.c
* \brief implementation of emultor tx and rx
* \author Navid Nikaein, Lionel GAUTHIER, and Raymomd Knopp
* \date 2011
* \version 1.0
* \company Eurecom
* \email: navid.nikaein@eurecom.fr, lionel.gauthier@eurecom.fr
*/
#include "local.h"
#include "proto_extern.h"
//#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]);
//int i;
unsigned char protocol;
//struct udphdr *uh;
//struct tcphdr *th;
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];
skb_reset_mac_header(skb);
//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
skb_reset_network_header(skb);
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
unsigned char * ifaddr, *saddr, daddr;
uint32_t odaddr = 0, osaddr;
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
skb_reset_network_header(skb);
network_header = (struct iphdr *)skb_network_header(skb);
protocol = network_header->protocol;
#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 (len %d)\n",skb->len);
for (i=0; i<skb->len; i++)
printk("%2x ",((unsigned char *)(skb->data))[i]);
printk("\n");
#endif //NAS_DEBUG_RECEIVE
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
// if (!(skb->nh.iph->frag_off & htons(IP_OFFSET))) {
switch(protocol) {
case IPPROTO_TCP:
uint16_t *cksum,check;
cksum = (uint16_t*)&(((struct tcphdr*)(((char *)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));
#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:
cksum = (uint16_t*)&(((struct udphdr*)(((char *)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));
#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 //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_ni(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 *gpriv)
{
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 nas_priv *gpriv)
{
//---------------------------------------------------------------------------
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;
pdcph.sourceL2Id = 0;
pdcph.destinationL2Id = 0;
#ifdef PDCP_USE_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 //PDCP_USE_NETLINK
if (bytes_wrote != NAS_PDCPH_SIZE) {
printk("NAS_COMMON_QOS_SEND: problem while writing PDCP's header (bytes wrote = %d )\n",bytes_wrote);
printk("rb_id %ld, Wrote %d, Header Size %lu\n", pdcph.rb_id , bytes_wrote, NAS_PDCPH_SIZE);
#ifndef PDCP_USE_NETLINK
rtf_reset(NAS2PDCP_FIFO);
#endif //PDCP_USE_NETLINK
return;
}
#ifdef PDCP_USE_NETLINK
bytes_wrote += nas_netlink_send((char *)skb->data,skb->len);
#else
bytes_wrote += rtf_put(NAS2PDCP_FIFO, skb->data, skb->len);
#endif //PDCP_USE_NETLINK
if (bytes_wrote != skb->len+NAS_PDCPH_SIZE) {
printk("NAS_COMMON_QOS_SEND: Inst %d, RB_ID %ld: 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 PDCP_USE_NETLINK
rtf_reset(NAS2PDCP_FIFO);
#endif //PDCP_USE_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 PDCP_USE_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(PDCP2PDCP_USE_RT_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(PDCP2PDCP_USE_RT_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(PDCP2PDCP_USE_RT_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 //PDCP_USE_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, 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
}
Reference in New Issue View Git Blame Copy Permalink