meshcore-dev/MeshCore
1
0
Fork 0
mirror of https://github.com/meshcore-dev/MeshCore.git synced 2026-04-20 22:13:47 +00:00
Code Issues Projects Releases Packages Wiki Activity

feat: implement per-sender advert jail and global rate limiting for flood adverts

Browse source
This commit is contained in:
overkillfpv 2026-04-20 20:40:20 +10:00
parent 49b37d5622
commit d04de2cb02
4 changed files with 236 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

18
examples/simple_repeater/MyMesh.h
View file

@ -78,6 +78,20 @@ struct NeighbourInfo {
#define FIRMWARE_ROLE "repeater"
#define ADVERT_JAIL_KEY_SIZE 4
#define MAX_ADVERT_JAIL_ENTRIES 128
#define ADVERT_JAIL_THRESHOLD 6
struct AdvertJailEntry {
uint8_t pub_key_prefix[ADVERT_JAIL_KEY_SIZE]; // first bytes of sender pub_key
uint8_t count; // strike count
bool jailed; // true once count reaches threshold
unsigned long last_seen; // millis() when last advert seen
unsigned long first_seen; // millis() when first advert seen
uint16_t total_adverts; // total adverts received (for avg calc)
uint32_t last_advert_time; // advert timestamp (sender clock) for dedup
};
#define PACKET_LOG_FILE "/packet_log"
class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
@ -108,6 +122,9 @@ class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
#endif
CayenneLPP telemetry;
unsigned long set_radio_at, revert_radio_at;
unsigned long last_flood_advert_recv;
uint32_t last_flood_advert_time; // advert timestamp for global rate limit dedup
AdvertJailEntry _advert_jail[MAX_ADVERT_JAIL_ENTRIES];
float pending_freq;
float pending_bw;
uint8_t pending_sf;
@ -211,6 +228,7 @@ public:
void setTxPower(int8_t power_dbm) override;
void formatNeighborsReply(char *reply) override;
void removeNeighbor(const uint8_t* pubkey, int key_len) override;
void formatAdvertJailReply(char *reply) override;
void formatStatsReply(char *reply) override;
void formatRadioStatsReply(char *reply) override;
void formatPacketStatsReply(char *reply) override;