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Add configurable max hops filter for auto-add contacts

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Filter auto-add of new contacts by hop count (issues #1533, #1546).
Setting is configurable from the companion app via extended
CMD_SET/GET_AUTOADD_CONFIG protocol (0 = no limit, 1-63 = max hops).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Wouter Bijen 2026-03-02 20:41:41 +01:00
parent 06ab9f7f6b
commit 00566741f6
6 changed files with 23 additions and 1 deletions
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9
src/helpers/BaseChatMesh.cpp
View file

@ -141,6 +141,15 @@ void BaseChatMesh::onAdvertRecv(mesh::Packet* packet, const mesh::Identity& id,
return;
}
// check hop limit for new contacts (0 = no limit)
uint8_t max_hops = getAutoAddMaxHops();
if (max_hops > 0 && packet->getPathHashCount() > max_hops) {
ContactInfo ci;
populateContactFromAdvert(ci, id, parser, timestamp);
onDiscoveredContact(ci, true, packet->path_len, packet->path); // let UI know
return;
}
from = allocateContactSlot();
if (from == NULL) {
ContactInfo ci;

1
src/helpers/BaseChatMesh.h
View file

@ -98,6 +98,7 @@ protected:
virtual bool shouldAutoAddContactType(uint8_t type) const { return true; }
virtual void onContactsFull() {};
virtual bool shouldOverwriteWhenFull() const { return false; }
virtual uint8_t getAutoAddMaxHops() const { return 0; } // 0 = no limit, 1-63 = max hops for auto-add
virtual void onContactOverwrite(const uint8_t* pub_key) {};
virtual void onDiscoveredContact(ContactInfo& contact, bool is_new, uint8_t path_len, const uint8_t* path) = 0;
virtual ContactInfo* processAck(const uint8_t *data) = 0;