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Clamp value types and add debugging-panic on violation

This commit is contained in:
Stefan `Sec` Zehl 2011-08-10 04:25:50 +02:00
parent c583ddc7e3
commit 6452d305c2
1 changed files with 41 additions and 0 deletions
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41
firmware/funk/mesh.c
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@ -7,6 +7,7 @@
#include "basic/byteorder.h"
#include "basic/random.h"
#include "basic/config.h"
#include "lcd/print.h"
char meshgen=0; // Generation
char meshincctr=0;
@ -28,6 +29,23 @@ void initMesh(void){
meshbuffer[0].flags=MF_USED;
};
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;
};
MPKT * meshGetMessage(uint8_t type){
int free=-1;
for(int i=0;i<MESHBUFSIZE;i++){
@ -69,6 +87,24 @@ void mesh_cleanup(void){
if (MO_TIME(meshbuffer[i].pkt)-now>SECS_DAY)
meshbuffer[i].flags=MF_FREE;
};
if(mesh_sanity(meshbuffer[i].pkt)){
meshbuffer[i].flags=MF_FREE;
#if 1
setSystemFont();
lcdClear();
lcdPrintln("MESH PANIC!");
lcdPrint(IntToStr(i,2,0));
lcdPrintln(":");
lcdPrint(IntToStrX(meshbuffer[i].pkt[0],2));
lcdPrint(" ");
lcdPrintln(IntToStrX(meshbuffer[i].pkt[1],2));
lcdPrintln(IntToStrX(uint8ptouint32(meshbuffer[i].pkt+2),8));
lcdPrintln(IntToStrX(uint8ptouint32(meshbuffer[i].pkt+6),8));
lcdPrintln(IntToStrX(uint8ptouint32(meshbuffer[i].pkt+10),8));
lcdRefresh();
while ((getInputRaw())==BTN_NONE);
#endif
};
};
};
};
@ -153,6 +189,11 @@ uint8_t mesh_recvqloop_work(void){
return 0;
};
if(mesh_sanity(buf)){
meshincctr++;
return 0;
};
if(MO_GEN(buf)>meshgen){
if(meshgen)
meshgen++;