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discover.neighbors sends a tagged repeater discovery request and only accepts matching repeater responses

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This commit is contained in:
realtag
2026-02-17 01:04:14 +00:00
parent e8785dd9b0
commit 87c78a98bd
2 changed files with 20 additions and 3 deletions
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21
examples/simple_repeater/MyMesh.cpp
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@@ -748,6 +748,16 @@ void MyMesh::onControlDataRecv(mesh::Packet* packet) {
return;
}
if (pending_discover_tag == 0 || millisHasNowPassed(pending_discover_until)) {
pending_discover_tag = 0;
return;
}
uint32_t tag;
memcpy(&tag, &packet->payload[2], 4);
if (tag != pending_discover_tag) {
return;
}
mesh::Identity id(&packet->payload[6]);
if (id.matches(self_id)) {
return;
@@ -763,6 +773,8 @@ void MyMesh::sendNodeDiscoverReq() {
data[0] = CTL_TYPE_NODE_DISCOVER_REQ; // prefix_only=0
data[1] = (1 << ADV_TYPE_REPEATER);
getRNG()->random(&data[2], 4); // tag
memcpy(&pending_discover_tag, &data[2], 4);
pending_discover_until = futureMillis(30000);
uint32_t since = 0;
memcpy(&data[6], &since, 4);
@@ -832,6 +844,9 @@ MyMesh::MyMesh(mesh::MainBoard &board, mesh::Radio &radio, mesh::MillisecondCloc
_prefs.advert_loc_policy = ADVERT_LOC_PREFS;
_prefs.adc_multiplier = 0.0f; // 0.0f means use default board multiplier
pending_discover_tag = 0;
pending_discover_until = 0;
}
void MyMesh::begin(FILESYSTEM *fs) {
@@ -1199,11 +1214,11 @@ void MyMesh::handleCommand(uint32_t sender_timestamp, char *command, char *reply
} else {
strcpy(reply, "Err - ??");
}
} else if (memcmp(command, "discover", 8) == 0) {
const char* sub = command + 8;
} else if (memcmp(command, "discover.neighbors", 18) == 0) {
const char* sub = command + 18;
while (*sub == ' ') sub++;
if (*sub != 0) {
strcpy(reply, "Err - discover has no options");
strcpy(reply, "Err - discover.neighbors has no options");
} else {
sendNodeDiscoverReq();
strcpy(reply, "OK - Discover sent");

2
examples/simple_repeater/MyMesh.h
View File

@@ -97,6 +97,8 @@ class MyMesh : public mesh::Mesh, public CommonCLICallbacks {
RegionEntry* load_stack[8];
RegionEntry* recv_pkt_region;
RateLimiter discover_limiter, anon_limiter;
uint32_t pending_discover_tag;
unsigned long pending_discover_until;
bool region_load_active;
unsigned long dirty_contacts_expiry;
#if MAX_NEIGHBOURS