int main(int argc,char** argv)
{
char srcfile[]="./srcfile";
char dstfile[]="./dstfile";
check_src(srcfile);
int srcfd=open(srcfile,O_SYNC|O_RDONLY);
if(srcfd==-1)
perror("open src file error");
int dstfd=open(dstfile,O_SYNC|O_RDWR|O_CREAT);
if(dstfd==-1)
perror("open dst file error");
chg_mod(dstfile);
printf("copying file...\n");
if(-1==lseek(srcfd,0,SEEK_SET))
perror("seek source file error\n");
if(-1==lseek(dstfd,0,SEEK_SET))
perror("seek dst file error\n");
time_t t1;
time(&t1);
char *buf=malloc(BUF_SIZE);
size_t n;
while(n=read(srcfd,buf,BUF_SIZE)>0)
if(write(dstfd,buf,n)!=n)
perror("write error\n");
time_t t2;
time(&t2);
printf("time used:%ld\n",t2-t1);
free(buf);
}
/*
* void igmp_group_handle_isex()
*
* Handle a is_ex{A} report for a group
* the report have only one source
*/
void
igmp_group_handle_isex(
igmp_router_t* router,
igmp_interface_t* ifp,
igmp_group_t* gp,
int numsrc,
struct in_addr *sources)
{
igmp_src_t *src,*old_src_set;
int i;
membership_db* member;
/* Reset timer */
gp->igmpg_timer = IGMP_GMI; /* 260 */
/* Do the v3 logic */
old_src_set=gp->igmpg_sources;
if (gp->igmpg_fmode == IGMP_FMODE_EXCLUDE) {
/* $6.4.1: State = Excl(X,Y), Report = IS_EX(A) */
for (i=0;i < numsrc;i++){
src=igmp_group_src_add(gp,sources[i]);
/* (A-X-Y) = GMI */
if ((check_src_set(src->igmps_source,old_src_set) == FALSE) && (check_src(src->igmps_source,sources,numsrc) == TRUE)){
src->igmps_timer = IGMP_GMI;
src->igmps_fstate = FALSE;
}
else
/* delete ( X-A) delete (Y-A) */
if ((check_src(src->igmps_source,sources,numsrc) == FALSE) && (check_src_set(src->igmps_source,old_src_set) == TRUE)){
//eddie igmp_src_cleanup(gp,sr);
//eddie k_proxy_del_mfc (router->igmprt_socket, sr->igmps_source.s_addr, gp->igmpg_addr.s_addr);
}
}
}
else {
/* $6.4.1: State = Incl(X,Y), Report = IS_EX(A) */
for (i=0;i< numsrc; i++){
src=igmp_group_src_add(gp,sources[i]);
if ((check_src_set(src->igmps_source,old_src_set) == FALSE) && (check_src(src->igmps_source,sources,numsrc) == TRUE)){
/*(B-A) = 0*/
src->igmps_timer = 0;
}else{
if ((check_src(src->igmps_source,sources,numsrc) == FALSE) && (check_src_set(src->igmps_source,old_src_set) == TRUE)){
/* delete (A-B)*/
igmp_src_cleanup(gp,src);
k_proxy_del_mfc (router->igmprt_socket, src->igmps_source.s_addr, gp->igmpg_addr.s_addr);
}
}
}
}
gp->igmpg_fmode = IGMP_FMODE_EXCLUDE;
/* Member Join from Downstream */
if (ifp->igmpi_type != UPSTREAM){
member = (membership_db*)update_multi(router,gp->igmpg_addr,gp->igmpg_fmode,numsrc,sources);
if (VALID_ADDR(gp->igmpg_addr)) {
k_proxy_chg_mfc(router->igmprt_socket, 0, gp->igmpg_addr.s_addr, ifp->igmpi_index,1);
dbg_printf("(%s->%s(%d)) ifp->igmpi_name is %s, ifp->igmpi_index is %d\n", __FILE__, __FUNCTION__, __LINE__, ifp->igmpi_name, ifp->igmpi_index);
//k_proxy_chg_mfc(router->igmprt_socket, sources[0].s_addr ,gp->igmpg_addr.s_addr,ifp->igmpi_index,1); // Added by Joshua
}
}
}
void handle_igmpv3_toin( __u32 group, __u32 src, int srcnum, __u32 *grec_src )
{
struct mcft_entry *mymcp;
if(!IN_MULTICAST(group))
return;
/* check if it's protocol reserved group */
if((group&0xFFFFFF00)==0xE0000000)
return;
if(!chk_mcft(group))
{
mymcp = add_mcft(group, src);
if(!mymcp) return;
mymcp->igmp_ver = IGMP_VER_3;
igmp_add_group( group );
}
mymcp = get_mcft(group);
if(mymcp)
{
switch( mymcp->filter_mode )
{
case MCAST_INCLUDE:
{
int i;
struct src_entry *s, *old_set;
// Mason Yu Test
//printf("handle_igmpv3_toin: MCAST_INCLUDE\n");
#ifdef KEEP_GROUP_MEMBER
if ( srcnum != 0 ){
add_user(mymcp, src);
}
#endif
//IN(A), TO_IN(B) => IN(A+B)
old_set = mymcp->srclist;
for(i=0;i<srcnum;i++)
{
if( check_src_set( grec_src[i], old_set )==0 )
igmp_add_mr( mymcp->grp_addr, grec_src[i], 1 );
s = add_to_srclist( mymcp, grec_src[i] );
if(s)
{ // (B)= GMI
s->timer.lefttime = MEMBER_QUERY_INTERVAL;
s->timer.retry_left = MEMBER_QUERY_COUNT;
}
}
//send Q(G,A-B)
i=0;
s = old_set;
while(s)
{
if( check_src( s->srcaddr, grec_src, srcnum )==0 )
{
gsrctmp[i]=s->srcaddr;
/*lower A-B timer to LMQT*/
s->timer.lefttime=LAST_MEMBER_QUERY_INTERVAL;
s->timer.retry_left=LAST_MEMBER_QUERY_COUNT;
i++;
if(i==IGMPV3_MAX_SRCNUM) break;
}
s = s->next;
}
if(i>0) igmpv3_query( mymcp, i, gsrctmp );
//set the new state
mymcp->filter_mode = MCAST_INCLUDE;
igmp_set_srcfilter( mymcp );
#ifdef KEEP_GROUP_MEMBER
if ( srcnum == 0 ) {
int count;
count = del_user(mymcp, src);
if (count == 0) {// no member, drop it!
del_mr(mymcp->grp_addr);
del_mcft(mymcp->grp_addr);
}
}
#endif
}
break;
case MCAST_EXCLUDE:
{
int i;
struct src_entry *s, *old_set;
// Mason Yu Test
//printf("handle_igmpv3_toin: MCAST_EXCLUDE and srcnum=%d\n", srcnum);
#ifdef KEEP_GROUP_MEMBER
if ( srcnum != 0 ){
add_user(mymcp, src);
}
#endif
//EX(X,Y), TO_IN(A) => EX(X+A, Y-A)
old_set = mymcp->srclist;
for(i=0;i<srcnum;i++)
{
s = add_to_srclist( mymcp, grec_src[i] );
if(s)
{ // (A)= GMI
s->timer.lefttime = MEMBER_QUERY_INTERVAL;
s->timer.retry_left = MEMBER_QUERY_COUNT;
igmp_add_mr( mymcp->grp_addr, s->srcaddr, 1 );
}
}
//send Q(G,X-A)
i=0;
s = old_set;
while(s)
{
if( s->timer.lefttime>0 )
{
if( check_src( s->srcaddr, grec_src, srcnum )==0 )
{
gsrctmp[i]=s->srcaddr;
/*lower X-A timer to LMQT*/
s->timer.lefttime=LAST_MEMBER_QUERY_INTERVAL;
s->timer.retry_left=LAST_MEMBER_QUERY_COUNT;
i++;
if(i==IGMPV3_MAX_SRCNUM) break;
}
}
s = s->next;
}
if(i>0) igmpv3_query( mymcp, i, gsrctmp );
/* lower group filter timer to LMQT*/
mymcp->timer.lefttime=LAST_MEMBER_QUERY_INTERVAL;
mymcp->timer.retry_left=LAST_MEMBER_QUERY_COUNT;
//send Q(G)
if( mymcp->igmp_ver==IGMP_VER_3 )
igmpv3_query( mymcp, 0, NULL );
else
igmp_query(ALL_SYSTEMS, mymcp->grp_addr, LAST_MEMBER_QUERY_INTERVAL);
//set the new state
mymcp->filter_mode = MCAST_EXCLUDE;
igmp_set_srcfilter( mymcp );
#ifdef KEEP_GROUP_MEMBER
if ( srcnum == 0 )
{
int count;
count = del_user(mymcp, src);
if (count == 0) {// no member, drop it!
del_mr(mymcp->grp_addr);
del_mcft(mymcp->grp_addr);
}
}
#endif
}
break;
default:
break;
}
}
}
void handle_igmpv3_toex( __u32 group, __u32 src, int srcnum, __u32 *grec_src )
{
struct mcft_entry *mymcp;
if(!IN_MULTICAST(group))
return;
/* check if it's protocol reserved group */
if((group&0xFFFFFF00)==0xE0000000)
return;
if(!chk_mcft(group))
{
mymcp = add_mcft(group, src);
if(!mymcp) return;
mymcp->igmp_ver = IGMP_VER_3;
igmp_add_group( group );
}
mymcp = get_mcft(group);
if(mymcp)
{
switch( mymcp->filter_mode )
{
case MCAST_INCLUDE:
{
int i;
struct src_entry *s, *old_set,*s_next;
//printf("handle_igmpv3_toex: MCAST_INCLUDE\n");
#ifdef KEEP_GROUP_MEMBER
add_user(mymcp, src);
#endif
//IN(A), TO_EX(B) => EX(A*B, B-A)
old_set = mymcp->srclist;
for(i=0;i<srcnum;i++)
{
// (B-A)=0
if( check_src_set(grec_src[i], old_set )==0 )
{
s = add_to_srclist( mymcp, grec_src[i] );
if(s){
s->timer.lefttime = 0;
s->timer.retry_left = 0;
igmp_add_mr( mymcp->grp_addr, s->srcaddr, 0 );
}
}
}
i=0;
s = old_set;
while(s)
{
s_next=s->next;
//Delete (A-B)
if( check_src( s->srcaddr, grec_src, srcnum )==0 )
{
igmp_del_mr( mymcp->grp_addr, s->srcaddr );
del_from_srclist( mymcp, s->srcaddr );
}
else
{
/*lower A*B timer to LMQT*/
gsrctmp[i]=s->srcaddr;
s->timer.lefttime=LAST_MEMBER_QUERY_INTERVAL;
s->timer.retry_left=LAST_MEMBER_QUERY_COUNT;
i++;
if(i==IGMPV3_MAX_SRCNUM)
break;
}
s = s_next;
}
//send Q(G,A*B)
if(i>0) igmpv3_query( mymcp, i, gsrctmp );
//Group Timer=GMI
mymcp->timer.lefttime = MEMBER_QUERY_INTERVAL;
mymcp->timer.retry_left = MEMBER_QUERY_COUNT;
//set the new state
mymcp->filter_mode = MCAST_EXCLUDE;
igmp_set_srcfilter( mymcp );
}
break;
case MCAST_EXCLUDE:
{
int i;
struct src_entry *s, *old_set,*s_next;
//printf("handle_igmpv3_toex: MCAST_EXCLUDE\n");
#ifdef KEEP_GROUP_MEMBER
add_user(mymcp, src);
#endif
//EX(X,Y), TO_EX(A) => EX(A-Y, Y*A)
old_set = mymcp->srclist;
for(i=0;i<srcnum;i++)
{
if( check_src_set( grec_src[i], old_set )==0 )
{
// (A-X-Y)=Group Timer
s = add_to_srclist( mymcp, grec_src[i] );
if(s){
s->timer.lefttime = mymcp->timer.lefttime;
s->timer.retry_left = MEMBER_QUERY_COUNT;
igmp_add_mr( mymcp->grp_addr, s->srcaddr, 1 );
}
}
}
s = old_set;
while(s)
{
s_next=s->next;
//Delete (X-A), Delete(Y-A)
if( check_src( s->srcaddr, grec_src, srcnum )==0 )
{
igmp_del_mr( mymcp->grp_addr, s->srcaddr );
del_from_srclist( mymcp, s->srcaddr );
}
s = s_next;
}
//send Q(G,A-Y)
i=0;
s = mymcp->srclist;
while(s)
{
s_next=s->next;
if( s->timer.lefttime > 0 )//A-Y
{
gsrctmp[i]=s->srcaddr;
/*lower A-Y timer to LMQT*/
s->timer.lefttime=LAST_MEMBER_QUERY_INTERVAL;
s->timer.retry_left=LAST_MEMBER_QUERY_COUNT;
i++;
if(i==IGMPV3_MAX_SRCNUM) break;
}
s=s_next;
}
if(i>0) igmpv3_query( mymcp, i, gsrctmp );
//Group Timer=GMI
mymcp->timer.lefttime = MEMBER_QUERY_INTERVAL;
mymcp->timer.retry_left = MEMBER_QUERY_COUNT;
//set the new state
mymcp->filter_mode = MCAST_EXCLUDE;
igmp_set_srcfilter( mymcp );
}
break;
default:
break;
}
}
}
void handle_igmpv3_isex( __u32 group, __u32 src, int srcnum, __u32 *grec_src )
{
struct mcft_entry *mymcp;
// Mason Yu Test
//printf("handle_igmpv3_isex\n");
if(!IN_MULTICAST(group))
return;
/* check if it's protocol reserved group */
if((group&0xFFFFFF00)==0xE0000000){
//printf("[%s]:It's protocol | reserved group!\n",__FUNCTION__);
return;
}
if(!chk_mcft(group))
{
//return;
mymcp = add_mcft(group, src);
if(!mymcp) return;
mymcp->igmp_ver = IGMP_VER_3;
igmp_add_group( group );
}
mymcp = get_mcft(group);
if(mymcp)
{
switch( mymcp->filter_mode )
{
case MCAST_INCLUDE:
{
int i;
struct src_entry *s, *old_set,*s_next;
// Mason Yu Test
//printf("handle_igmpv3_isex: MCAST_INCLUDE\n");
#ifdef KEEP_GROUP_MEMBER
add_user(mymcp, src);
#endif
//IN(A), IS_EX(B) => EX(A*B, B-A)
old_set = mymcp->srclist;
for(i=0;i<srcnum;i++)
{
//(B-A)=0
if (check_src_set(grec_src[i],old_set)==0)
{
s = add_to_srclist( mymcp, grec_src[i] );
if(s)
{
s->timer.lefttime = 0;
s->timer.retry_left = 0;
igmp_add_mr( mymcp->grp_addr, s->srcaddr, 0 );
}
}
}
s = old_set;
while(s)
{
s_next=s->next;
//Delete (A-B)
if( check_src( s->srcaddr, grec_src, srcnum )==0 )
{
igmp_del_mr( mymcp->grp_addr, s->srcaddr );
del_from_srclist( mymcp, s->srcaddr );
}
s = s_next;
}
//Group Timer=GMI
mymcp->timer.lefttime = MEMBER_QUERY_INTERVAL;
mymcp->timer.retry_left = MEMBER_QUERY_COUNT;
//set the new state
mymcp->filter_mode = MCAST_EXCLUDE;
igmp_set_srcfilter( mymcp );
}
break;
case MCAST_EXCLUDE:
{
int i;
struct src_entry *s, *old_set,*s_next;
// Mason Yu Test
//printf("handle_igmpv3_isex: MCAST_EXCLUDE\n");
#ifdef KEEP_GROUP_MEMBER
add_user(mymcp, src);
#endif
//EX(X,Y), IS_EX(A) => EX(A-Y, Y*A)
old_set = mymcp->srclist;
for(i=0;i<srcnum;i++)
{
// (A-X-Y)=GMI
if( check_src_set( grec_src[i],old_set )==0 )
{
s=add_to_srclist( mymcp, grec_src[i] );
if(s)
{
s->timer.lefttime = MEMBER_QUERY_INTERVAL;
s->timer.retry_left = MEMBER_QUERY_COUNT;
igmp_add_mr( mymcp->grp_addr, s->srcaddr, 1 );
}
}
}
s = old_set;
while(s)
{
s_next =s->next;
//Delete (X-A), Delete(Y-A)
if( check_src( s->srcaddr, grec_src, srcnum )==0 )
{
igmp_del_mr( mymcp->grp_addr, s->srcaddr );
del_from_srclist( mymcp, s->srcaddr );
}
s = s_next;
}
//Group Timer=GMI
mymcp->timer.lefttime = MEMBER_QUERY_INTERVAL;
mymcp->timer.retry_left = MEMBER_QUERY_COUNT;
//printf("grp_addr:%s.mymcp->timer.lefttime=%d,mymcp->timer.retry_left=%d,[%s]:[%d].\n",inet_ntoa(group),mymcp->timer.lefttime,mymcp->timer.retry_left,__FUNCTION__,__LINE__);
//set the new state
mymcp->filter_mode = MCAST_EXCLUDE;
igmp_set_srcfilter( mymcp );
}
break;
default:
break;
}
}
}