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fix pubic channel anomaly v2

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liquidraver
2026-05-11 14:42:47 +02:00
parent 1bb04dd968
commit a3bfb1e4a3
1 changed files with 14 additions and 2 deletions
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zephcore/helpers/BaseChatMesh.cpp
+14 -2
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@@ -819,17 +819,29 @@ bool BaseChatMesh::getChannel(int idx, ChannelDetails &dest)
bool BaseChatMesh::setChannel(int idx, const ChannelDetails &src)
{
static uint8_t zeroes[] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
static const uint8_t zeroes16[16] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
static const uint8_t zeroes32[32] = { 0 };
if (idx >= 0 && idx < MAX_GROUP_CHANNELS) {
channels[idx] = src;
if (memcmp(&src.channel.secret[16], zeroes, 16) == 0) {
if (memcmp(&src.channel.secret[16], zeroes16, 16) == 0) {
mesh::Utils::sha256(channels[idx].channel.hash, sizeof(channels[idx].channel.hash),
src.channel.secret, 16);
} else {
mesh::Utils::sha256(channels[idx].channel.hash, sizeof(channels[idx].channel.hash),
src.channel.secret, 32);
}
/* Keep num_channels aligned to highest non-empty slot + 1.
* Needed so startup logic can detect whether channels were loaded. */
int highest_used = -1;
for (int i = 0; i < MAX_GROUP_CHANNELS; i++) {
if (channels[i].name[0] != '\0' ||
memcmp(channels[i].channel.secret, zeroes32, sizeof(zeroes32)) != 0) {
highest_used = i;
}
}
num_channels = highest_used + 1;
return true;
}
return false;