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fixed the neighbour update problem

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n07070 2020-04-27 20:38:31 +02:00
parent 00ed727da0
commit 9b2a3f1ea8
1 changed files with 9 additions and 6 deletions
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15
src/node.c
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@ -612,17 +612,19 @@ int validate_tlv(char *data, int pos, int16_t packet_len){
printf(">> Reading out of packet length. \n"); printf(">> Reading out of packet length. \n");
return -1; return -1;
} }
// 0 1 2 3 = Packet
// 4 = type 5 = tlv_len
unsigned char tlv_len = data[pos+1]; unsigned char tlv_len = data[pos+1];
// Check that the tlv does not exceed the packet length // Check that the tlv does not exceed the packet length
printf("%i ; %i ; %i\n", pos, tlv_len, packet_len );
if(pos + tlv_len > packet_len){ if(pos + tlv_len > packet_len){
printf(">> The TLV Length exceed the packet length\n"); printf(">> The TLV Length exceed the packet length\n");
return -1; return -1;
} }
printf(">> TLV has type %i\n", type ); printf(">> TLV has type %i\n", type );
// Returns the type of the tlv or -1 if something went wrong // Returns the type of the tlv or -1 if something went wrong
switch(type) { switch(type) {
case 1: case 1:
@ -691,7 +693,7 @@ int add_message(char * message, int message_len){
} }
// We then look at the differents TLVs in the packet. // We then look at the differents TLVs in the packet.
int work_with_tlvs(char * data, int16_t total_packet_len, struct sockaddr_in6 *sender, int socket_num){ int work_with_tlvs(char * data, int16_t total_packet_len, struct sockaddr_in6 *sender, int socket_num){
int16_t packet_len = ntohs(((packet*) data)->length); int16_t packet_len = ((packet*) data)->length;
if(packet_len != total_packet_len - 4) { if(packet_len != total_packet_len - 4) {
fprintf(stderr, ">> Length indicated in packet differs from real length of packet received.\n"); fprintf(stderr, ">> Length indicated in packet differs from real length of packet received.\n");
@ -725,8 +727,8 @@ int work_with_tlvs(char * data, int16_t total_packet_len, struct sockaddr_in6 *s
int ifindex = 0; int ifindex = 0;
ifindex = 0; ifindex = 0;
while(pos < packet_len) { while(pos < total_packet_len) {
switch(validate_tlv(data, pos, packet_len)) { switch(validate_tlv(data, pos, total_packet_len)) {
case 0: case 0:
// We received a padding tlv so it is ignored // We received a padding tlv so it is ignored
pos += 1; pos += 1;
@ -779,7 +781,8 @@ int work_with_tlvs(char * data, int16_t total_packet_len, struct sockaddr_in6 *s
if(memcmp(hash, cur_tlv.network_hash->network_hash, 16) == 0) { if(memcmp(hash, cur_tlv.network_hash->network_hash, 16) == 0) {
build_network_state_req(&new_tlv); build_network_state_req(&new_tlv);
add_tlv(&pack, &new_tlv, sender, socket_num); send_single_tlv(&new_tlv, sender, socket_num);
} }
// The position is updated // The position is updated