Initial push

1 files changed, 83 insertions, 0 deletions

diff --git a/stacks/daemon/max25_platform.py b/stacks/daemon/max25_platform.py
new file mode 100644
index 0000000..0ca1acb
--- /dev/null
+++ b/stacks/daemon/max25_platform.py
@@ -0,0 +1,83 @@
+"""MAX25 host platform — Linux full stack, FreeBSD server + CRDOP/OSS."""
+from __future__ import annotations
+
+import os
+import sys
+
+
+def system_name() -> str:
+    return sys.platform
+
+
+def is_linux() -> bool:
+    return sys.platform == "linux"
+
+
+def is_freebsd() -> bool:
+    return sys.platform.startswith("freebsd")
+
+
+def is_bsd() -> bool:
+    return sys.platform.startswith(("freebsd", "openbsd", "netbsd", "darwin"))
+
+
+def max25d_supported() -> bool:
+    """Daemon may run (full stack on Linux, server+CRDOP on FreeBSD)."""
+    return is_linux() or is_freebsd()
+
+
+def default_unix_socket() -> str:
+    if is_linux():
+        return "/run/max25/modem.sock"
+    if is_freebsd():
+        return "/var/run/max25/modem.sock"
+    return "/tmp/max25/modem.sock"
+
+
+def default_bans_file() -> str:
+    if is_linux():
+        return "/var/lib/max25/bans.txt"
+    return "/var/db/max25/bans.txt"
+
+
+def supported_device_ids() -> frozenset[str]:
+    if is_linux():
+        return frozenset(
+            {
+                "tnc2c",
+                "pktnc2",
+                "tmodem",
+                "baycom-kiss",
+                "pccom-kiss",
+                # BayCom/based SER12 (max25-bcpr -> device max25e0; in scope, default ON in Lite)
+                "max25e0",
+                "max25e0:bc0",
+                "max25e0:bc1",
+                "soft-crdop",
+                "audio-dummy",
+            }
+        )
+    if is_freebsd():
+        # USB KISS (tmodem/c1224) + CRDOP/OSS + max25-bcpr (SER12 via sysarch I386_SET_IOPERM)
+        return frozenset({"tmodem", "soft-crdop", "audio-dummy", "max25e0", "max25e0:bc0", "max25e0:bc1"})
+    return frozenset({"soft-crdop"})
+
+
+def crdop_audio_backend() -> str:
+    """Host audio API for CRDOP sound-proxy."""
+    env = os.environ.get("MAX25_AUDIO_BACKEND", "").strip().lower()
+    if env in ("alsa", "oss"):
+        return env
+    if is_linux():
+        return "alsa"
+    if is_freebsd():
+        return "oss"
+    return "alsa"
+
+
+def platform_label() -> str:
+    if is_linux():
+        return "Linux/KLinux"
+    if is_freebsd():
+        return "FreeBSD"
+    return sys.platform