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Ask for explanation of SIDs over point to point links

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This commit is contained in:
Jeremy Lakeman 2013-09-17 12:02:26 +09:30
parent d3b1ccd20e
commit 926665e860
1 changed files with 15 additions and 1 deletions
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16
overlay_address.c
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@ -355,7 +355,15 @@ int overlay_address_parse(struct decode_context *context, struct overlay_buffer
*subscriber=context->point_to_point_device;
context->previous=*subscriber;
}else{
WHYF("Could not resolve address, I don't know who is on the other end of this link!");
// add the abbreviation you told me about
if (!context->please_explain){
context->please_explain = calloc(sizeof(struct overlay_frame),1);
context->please_explain->payload=ob_new();
ob_limitsize(context->please_explain->payload, MDP_MTU);
}
INFOF("Asking for explanation of YOU");
ob_append_byte(context->please_explain->payload, OA_CODE_P2P_YOU);
context->invalid_addresses=1;
}
return 0;
@ -438,6 +446,12 @@ int process_explain(struct overlay_frame *frame){
while(ob_remaining(b)>0){
int len = ob_get(b);
if (len==OA_CODE_P2P_YOU){
add_explain_response(my_subscriber, &context);
continue;
}
if (len<=0 || len>SID_SIZE)
return WHY("Badly formatted explain message");
unsigned char *sid = ob_get_bytes_ptr(b, len);