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Wifi (Linux): fix interface status when the interface is up but not connected

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This commit is contained in:
Carter Li
2025-07-22 22:03:53 +08:00
parent be3e2ba521
commit 9b491c2f49
1 changed files with 31 additions and 4 deletions
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src/detection/wifi/wifi_linux.c
+31 -4
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@@ -554,21 +554,48 @@ const char* ffDetectWifi(FF_MAYBE_UNUSED FFlist* result)
item->conn.channel = 0;
item->conn.frequency = 0;
char operstate;
ffStrbufSetF(&buffer, "/sys/class/net/%s/operstate", i->if_name);
if (!ffAppendFileBuffer(buffer.chars, &item->inf.status))
if (!ffReadFileData(buffer.chars, 1, &operstate))
{
FF_DEBUG("Failed to read operstate file");
continue;
}
ffStrbufTrimRightSpace(&item->inf.status);
FF_DEBUG("Interface status: %s", item->inf.status.chars);
if (!ffStrbufEqualS(&item->inf.status, "up"))
FF_DEBUG("Connection status: %c", operstate);
if (operstate != 'u')
{
FF_DEBUG("Skipping interface as it's not up");
ffStrbufSetStatic(&item->conn.status, "disconnected");
ffStrbufSetF(&buffer, "/sys/class/net/%s/flags", i->if_name);
char flags[16];
ssize_t len = ffReadFileData(buffer.chars, sizeof(flags), flags);
if (len <= 0)
{
FF_DEBUG("Failed to read flags file");
ffStrbufSetStatic(&item->inf.status, "unknown");
continue;
}
flags[len] = '\0';
FF_DEBUG("Interface flags: %s", flags);
unsigned flagsVal = (unsigned) strtoul(flags, NULL, 16);
if (flagsVal & IFF_UP)
{
ffStrbufSetStatic(&item->inf.status, "up");
FF_DEBUG("Interface is up but not connected");
}
else
{
ffStrbufSetStatic(&item->inf.status, "down");
FF_DEBUG("Interface is down");
}
continue;
}
ffStrbufSetStatic(&item->inf.status, "up");
FF_DEBUG("Trying to detect wifi with iw");
if (detectWifiWithIw(item, &buffer) != NULL)
{