94c30686cf
This is required for it to be able to create DEVMAP/DEVMAP_HASH maps.
See kernel source code in kernel/bpf/devmap.c:
static struct bpf_map *dev_map_alloc(union bpf_attr *attr) {
...
if (!capable(CAP_NET_ADMIN)) return ERR_PTR(-EPERM);
Test: atest, TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I2fc5b1541133859857fc9baa7564965f240c842a
43 lines
2.2 KiB
Text
43 lines
2.2 KiB
Text
# bpf program loader
|
|
type bpfloader, domain;
|
|
type bpfloader_exec, system_file_type, exec_type, file_type;
|
|
typeattribute bpfloader coredomain;
|
|
|
|
# These permissions are required to pin ebpf maps & programs.
|
|
allow bpfloader { fs_bpf fs_bpf_tethering }:dir { add_name create search write };
|
|
allow bpfloader { fs_bpf fs_bpf_tethering }:file { create read setattr };
|
|
allow fs_bpf_tethering fs_bpf:filesystem associate;
|
|
|
|
# Allow bpfloader to create bpf maps and programs.
|
|
allow bpfloader self:bpf { map_create map_read map_write prog_load prog_run };
|
|
|
|
allow bpfloader self:capability { chown sys_admin net_admin };
|
|
|
|
set_prop(bpfloader, bpf_progs_loaded_prop)
|
|
|
|
###
|
|
### Neverallow rules
|
|
###
|
|
|
|
# TODO: get rid of init & vendor_init; Note: we don't care about getattr/mounton/search
|
|
neverallow { domain -init -vendor_init } { fs_bpf fs_bpf_tethering }:dir { open read setattr };
|
|
neverallow { domain -bpfloader } { fs_bpf fs_bpf_tethering }:dir { add_name create write };
|
|
neverallow domain { fs_bpf fs_bpf_tethering }:dir ~{ add_name create getattr mounton open read search setattr write };
|
|
|
|
# TODO: get rid of init & vendor_init
|
|
neverallow { domain -bpfloader -init -vendor_init } { fs_bpf fs_bpf_tethering }:file { map open setattr };
|
|
neverallow { domain -bpfloader } { fs_bpf fs_bpf_tethering }:file create;
|
|
neverallow { domain -bpfloader -gpuservice -init -netd -netutils_wrapper -network_stack -system_server -vendor_init } { fs_bpf fs_bpf_tethering }:file read;
|
|
neverallow { domain -bpfloader -gpuservice -netd -netutils_wrapper -network_stack -system_server } { fs_bpf fs_bpf_tethering }:file write;
|
|
neverallow domain { fs_bpf fs_bpf_tethering }:file ~{ create map open read setattr write };
|
|
|
|
neverallow { domain -bpfloader } *:bpf { map_create prog_load };
|
|
neverallow { domain -bpfloader -gpuservice -netd -netutils_wrapper -network_stack -system_server } *:bpf prog_run;
|
|
neverallow { domain -bpfloader -gpuservice -netd -network_stack -system_server } *:bpf { map_read map_write };
|
|
|
|
neverallow { domain -bpfloader -init } bpfloader_exec:file { execute execute_no_trans };
|
|
|
|
neverallow bpfloader *:{ tcp_socket udp_socket rawip_socket } *;
|
|
|
|
# No domain should be allowed to ptrace bpfloader
|
|
neverallow { domain userdebug_or_eng(`-llkd') } bpfloader:process ptrace;
|