Esempio n. 1
0
void mesh_cleanup(void){
    time_t now=getSeconds();
    for(int i=1;i<MESHBUFSIZE;i++){
        if(meshbuffer[i].flags&MF_USED){
            if (MO_GEN(meshbuffer[i].pkt)<meshgen)
                meshbuffer[i].flags=MF_FREE;
            if (MO_TYPE(meshbuffer[i].pkt)>='a' &&
                    MO_TYPE(meshbuffer[i].pkt)<='z'){
                ;
            }else{
                if (MO_TIME(meshbuffer[i].pkt)<now)
                    meshbuffer[i].flags=MF_FREE;
                if (MO_TIME(meshbuffer[i].pkt)-now>SECS_DAY)
                    meshbuffer[i].flags=MF_FREE;
            };
        };
    };
};
Esempio n. 2
0
uint8_t mesh_recvqloop_work(void){
    __attribute__ ((aligned (4))) uint8_t buf[32];
    int len;

        len=nrf_rcv_pkt_poll_dec(sizeof(buf),buf,meshkey);

        // Receive
        if(len<=0){
            return 0;
        };

        if(MO_GEN(buf)>meshgen){
            if(meshgen)
                meshgen++;
            else
                meshgen=MO_GEN(buf);
            _timet=0;
            meshincctr=0;
            meshnice=0;
        };

        if(MO_TYPE(buf)=='T'){
            time_t toff=MO_TIME(buf)-((getTimer()+(600/SYSTICKSPEED))/(1000/SYSTICKSPEED));
            if (toff>_timet){ // Do not live in the past.
                _timet = toff;
                meshincctr++;
            };
            if(MO_BODY(buf)[4] > meshnice)
                meshnice=MO_BODY(buf)[4];
            return 1;
        };

        // Safety: Truncate ascii packets by 0-ing the CRC
        buf[MESHPKTSIZE-2]=0;

        // Store packet in a same/free slot
        MPKT* mpkt=meshGetMessage(MO_TYPE(buf));

        // Skip locked packet
        if(mpkt->flags&MF_LOCK)
            return 2;

        // only accept newer/better packets
        if(mpkt->flags==MF_USED)
            if(MO_TIME(buf)<=MO_TIME(mpkt->pkt))
                return 2;

        if((MO_TYPE(buf)>='A' && MO_TYPE(buf)<='C') ||
                (MO_TYPE(buf)>='A' && MO_TYPE(buf)<='C'))
                    meshmsg=1;

        memcpy(mpkt->pkt,buf,MESHPKTSIZE);
        mpkt->flags=MF_USED;
        return 1;
};
Esempio n. 3
0
File: spam.c Progetto: astro/lun1k
static int mesh_sanity(uint8_t * pkt){
    if(MO_TYPE(pkt)>='A' && MO_TYPE(pkt)<='Z'){
        if(MO_TIME(pkt)>1313803870)
            return 1;
        if(MO_TIME(pkt)<1312075898)
            return 1;
    }else if(MO_TYPE(pkt)>='a' && MO_TYPE(pkt)<='z'){
        if(MO_TIME(pkt)>16777216)
            return 1;
        if(MO_TIME(pkt)<0)
            return 1;
    };
    if(MO_TYPE(pkt)>0x7f || MO_TYPE(pkt)<0x20)
        return 1;
    return 0;
};
Esempio n. 4
0
MPKT * meshGetMessage(uint8_t type){
    int free=-1;
    for(int i=0;i<MESHBUFSIZE;i++){
        if ( ((meshbuffer[i].flags&MF_USED)==0) && free<0 )
            free=i;
        if ( (meshbuffer[i].flags&MF_USED) &&
                (MO_TYPE(meshbuffer[i].pkt) == type)){
            free=i;
            break;
        };
    };
    if(free==-1){ // Buffer full. Ah well. Kill a random packet
        free=1; // XXX: GetRandom()?
        meshbuffer[free].flags=MF_FREE;
    };
    if(meshbuffer[free].flags==MF_FREE){
        memset(&meshbuffer[free],0,sizeof(MPKT));
        MO_TYPE_set(meshbuffer[free].pkt,type);
        MO_GEN_set(meshbuffer[free].pkt,meshgen);
        meshbuffer[free].flags=MF_USED;
    };
    return &meshbuffer[free];
};