Support TCP based fastbootd in recovery mode.

The IPv6 link-local address is used to avoid expose device to out of
network segment.

BUG: 152544169
BUG: 155198345
Test: manual test.
Change-Id: I0ce8c12de9976c01e57a6433c7fb50235e907dc5
Merged-In: I0ce8c12de9976c01e57a6433c7fb50235e907dc5
Merged-In: I409aeccd31293bf0ae3be5b1dbafe5a74daaaa9d
diff --git a/prebuilts/api/30.0/private/compat/29.0/29.0.ignore.cil b/prebuilts/api/30.0/private/compat/29.0/29.0.ignore.cil
index 0a9da30..53b4e71 100644
--- a/prebuilts/api/30.0/private/compat/29.0/29.0.ignore.cil
+++ b/prebuilts/api/30.0/private/compat/29.0/29.0.ignore.cil
@@ -44,6 +44,7 @@
     device_config_configuration_prop
     emergency_affordance_service
     exported_camera_prop
+    fastbootd_protocol_prop
     file_integrity_service
     fwk_automotive_display_hwservice
     gmscore_app
diff --git a/prebuilts/api/30.0/private/property_contexts b/prebuilts/api/30.0/private/property_contexts
index a117fcc..1a5471f 100644
--- a/prebuilts/api/30.0/private/property_contexts
+++ b/prebuilts/api/30.0/private/property_contexts
@@ -97,6 +97,9 @@
 sys.lmk.                u:object_r:system_lmk_prop:s0
 sys.trace.              u:object_r:system_trace_prop:s0
 
+# Fastbootd protocol control property
+fastbootd.protocol    u:object_r:fastbootd_protocol_prop:s0 exact enum usb tcp
+
 # Boolean property set by system server upon boot indicating
 # if device is fully owned by organization instead of being
 # a personal device.
diff --git a/prebuilts/api/30.0/public/fastbootd.te b/prebuilts/api/30.0/public/fastbootd.te
index f10e649..8787817 100644
--- a/prebuilts/api/30.0/public/fastbootd.te
+++ b/prebuilts/api/30.0/public/fastbootd.te
@@ -120,6 +120,14 @@
   # Determine allocation scheme (whether B partitions needs to be
   # at the second half of super.
   get_prop(fastbootd, virtual_ab_prop)
+
+  # Needed for TCP protocol
+  allow fastbootd node:tcp_socket node_bind;
+  allow fastbootd port:tcp_socket name_bind;
+  allow fastbootd self:tcp_socket { create_socket_perms_no_ioctl listen accept };
+
+  # Get fastbootd protocol property
+  get_prop(fastbootd, fastbootd_protocol_prop)
 ')
 
 ###
diff --git a/prebuilts/api/30.0/public/property.te b/prebuilts/api/30.0/public/property.te
index 316d3c6..a81b6b4 100644
--- a/prebuilts/api/30.0/public/property.te
+++ b/prebuilts/api/30.0/public/property.te
@@ -14,6 +14,7 @@
 system_internal_prop(device_config_window_manager_native_boot_prop)
 system_internal_prop(device_config_configuration_prop)
 system_internal_prop(firstboot_prop)
+system_internal_prop(fastbootd_protocol_prop)
 system_internal_prop(gsid_prop)
 system_internal_prop(init_perf_lsm_hooks_prop)
 system_internal_prop(init_svc_debug_prop)
diff --git a/prebuilts/api/30.0/public/recovery.te b/prebuilts/api/30.0/public/recovery.te
index 16b670f..63a9cea 100644
--- a/prebuilts/api/30.0/public/recovery.te
+++ b/prebuilts/api/30.0/public/recovery.te
@@ -154,6 +154,15 @@
 
   # Allow mounting /metadata for writing update states
   allow recovery metadata_file:dir { getattr mounton };
+
+  # These are needed to allow recovery to manage network
+  allow recovery self:netlink_route_socket { create write read nlmsg_readpriv nlmsg_read };
+  allow recovery self:global_capability_class_set net_admin;
+  allow recovery self:tcp_socket { create ioctl };
+  allowxperm recovery self:tcp_socket ioctl { SIOCGIFFLAGS SIOCSIFFLAGS };
+
+  # Set fastbootd protocol property
+  set_prop(recovery, fastbootd_protocol_prop)
 ')
 
 ###
diff --git a/private/compat/29.0/29.0.ignore.cil b/private/compat/29.0/29.0.ignore.cil
index 0a9da30..53b4e71 100644
--- a/private/compat/29.0/29.0.ignore.cil
+++ b/private/compat/29.0/29.0.ignore.cil
@@ -44,6 +44,7 @@
     device_config_configuration_prop
     emergency_affordance_service
     exported_camera_prop
+    fastbootd_protocol_prop
     file_integrity_service
     fwk_automotive_display_hwservice
     gmscore_app
diff --git a/private/property_contexts b/private/property_contexts
index a117fcc..1a5471f 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -97,6 +97,9 @@
 sys.lmk.                u:object_r:system_lmk_prop:s0
 sys.trace.              u:object_r:system_trace_prop:s0
 
+# Fastbootd protocol control property
+fastbootd.protocol    u:object_r:fastbootd_protocol_prop:s0 exact enum usb tcp
+
 # Boolean property set by system server upon boot indicating
 # if device is fully owned by organization instead of being
 # a personal device.
diff --git a/public/fastbootd.te b/public/fastbootd.te
index f10e649..8787817 100644
--- a/public/fastbootd.te
+++ b/public/fastbootd.te
@@ -120,6 +120,14 @@
   # Determine allocation scheme (whether B partitions needs to be
   # at the second half of super.
   get_prop(fastbootd, virtual_ab_prop)
+
+  # Needed for TCP protocol
+  allow fastbootd node:tcp_socket node_bind;
+  allow fastbootd port:tcp_socket name_bind;
+  allow fastbootd self:tcp_socket { create_socket_perms_no_ioctl listen accept };
+
+  # Get fastbootd protocol property
+  get_prop(fastbootd, fastbootd_protocol_prop)
 ')
 
 ###
diff --git a/public/property.te b/public/property.te
index 316d3c6..a81b6b4 100644
--- a/public/property.te
+++ b/public/property.te
@@ -14,6 +14,7 @@
 system_internal_prop(device_config_window_manager_native_boot_prop)
 system_internal_prop(device_config_configuration_prop)
 system_internal_prop(firstboot_prop)
+system_internal_prop(fastbootd_protocol_prop)
 system_internal_prop(gsid_prop)
 system_internal_prop(init_perf_lsm_hooks_prop)
 system_internal_prop(init_svc_debug_prop)
diff --git a/public/recovery.te b/public/recovery.te
index 16b670f..63a9cea 100644
--- a/public/recovery.te
+++ b/public/recovery.te
@@ -154,6 +154,15 @@
 
   # Allow mounting /metadata for writing update states
   allow recovery metadata_file:dir { getattr mounton };
+
+  # These are needed to allow recovery to manage network
+  allow recovery self:netlink_route_socket { create write read nlmsg_readpriv nlmsg_read };
+  allow recovery self:global_capability_class_set net_admin;
+  allow recovery self:tcp_socket { create ioctl };
+  allowxperm recovery self:tcp_socket ioctl { SIOCGIFFLAGS SIOCSIFFLAGS };
+
+  # Set fastbootd protocol property
+  set_prop(recovery, fastbootd_protocol_prop)
 ')
 
 ###