feat: allow MAC spoofing in Bluetooth stack, show paired devices in Bluetooth app

programs/include/Api/Syscall.hpp

@@ -182,6 +182,13 @@ namespace Montauk {
     // Paginated directory read (path, names, max, startIndex)
     static constexpr uint64_t SYS_READDIR_AT          = 136;
 
+    // Set adapter BD_ADDR (6-byte buffer, addr[0] = LSB)
+    static constexpr uint64_t SYS_BTSETADDR           = 137;
+
+    // List bonded (paired) devices / forget a bond
+    static constexpr uint64_t SYS_BTBONDS             = 138;
+    static constexpr uint64_t SYS_BTFORGET            = 139;
+
     // Graceful power-off request actions (SYS_POWER_REQUEST). The desktop posts
     // a pending action and exits; login.elf reads it, runs the shutdown stages,
     // then issues the matching SYS_SHUTDOWN / SYS_RESET.
@@ -433,6 +440,12 @@ namespace Montauk {
         char     name[64];
     };
 
+    // Bluetooth bonded (paired) device (returned by SYS_BTBONDS)
+    struct BtBondInfo {
+        uint8_t  bdAddr[6];
+        uint8_t  _pad[2];
+    };
+
     struct ThermalInfo {
         char     name[32];          // short zone name (e.g. "THRM", "TZ00")
         int32_t  temperature;       // tenths of degrees Celsius, or -1 if unavailable

programs/include/montauk/syscall.h

@@ -536,6 +536,20 @@ namespace montauk {
     inline int bt_disconnect(const uint8_t* bdAddr) {
         return (int)syscall1(Montauk::SYS_BTDISCONNECT, (uint64_t)bdAddr);
     }
+    // Change the adapter's BD_ADDR. bdAddr is a 6-byte buffer with bdAddr[0] as
+    // the least-significant octet (same order as BtAdapterInfo::bdAddr). Returns
+    // 0 on success, negative on failure. Persist separately to bluetooth.toml.
+    inline int bt_set_addr(const uint8_t* bdAddr) {
+        return (int)syscall1(Montauk::SYS_BTSETADDR, (uint64_t)bdAddr);
+    }
+    // List bonded (paired) devices. Returns count written to buf (may be 0).
+    inline int bt_bonds(Montauk::BtBondInfo* buf, int maxCount) {
+        return (int)syscall2(Montauk::SYS_BTBONDS, (uint64_t)buf, (uint64_t)maxCount);
+    }
+    // Forget a paired device (removes the bond; it must re-pair next time).
+    inline int bt_forget(const uint8_t* bdAddr) {
+        return (int)syscall1(Montauk::SYS_BTFORGET, (uint64_t)bdAddr);
+    }
     inline int bt_list(Montauk::BtDevInfo* buf, int maxCount) {
         return (int)syscall2(Montauk::SYS_BTLIST, (uint64_t)buf, (uint64_t)maxCount);
     }