netbpfload: remove support for 'platform'

Test: N/A
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ia0c1f55aa78435737699e0dec0bfddbd977e7392

netbpfload/NetBpfLoad.cpp

@@ -93,18 +93,6 @@ constexpr bpf_prog_type kTetheringApexAllowedProgTypes[] = {
         BPF_PROG_TYPE_XDP,
 };
 
-// Networking-related program types are limited to the Tethering Apex
-// to prevent things from breaking due to conflicts on mainline updates
-// (exception made for socket filters, ie. xt_bpf for potential use in iptables,
-// or for attaching to sockets directly)
-constexpr bpf_prog_type kPlatformAllowedProgTypes[] = {
-        BPF_PROG_TYPE_KPROBE,
-        BPF_PROG_TYPE_PERF_EVENT,
-        BPF_PROG_TYPE_SOCKET_FILTER,
-        BPF_PROG_TYPE_TRACEPOINT,
-        BPF_PROG_TYPE_UNSPEC,  // Will be replaced with fuse bpf program type
-};
-
 // see b/162057235. For arbitrary program types, the concern is that due to the lack of
 // SELinux access controls over BPF program attachpoints, we have no way to control the
 // attachment of programs to shared resources (or to detect when a shared resource
@@ -157,14 +145,6 @@ const android::bpf::Location locations[] = {
                 .allowedProgTypes = kTetheringApexAllowedProgTypes,
                 .allowedProgTypesLength = arraysize(kTetheringApexAllowedProgTypes),
         },
-        // Core operating system
-        {
-                .dir = "/system/etc/bpf/",
-                .prefix = "",
-                .allowedDomainBitmask = domainToBitmask(domain::platform),
-                .allowedProgTypes = kPlatformAllowedProgTypes,
-                .allowedProgTypesLength = arraysize(kPlatformAllowedProgTypes),
-        },
         // Vendor operating system
         {
                 .dir = "/vendor/etc/bpf/",