49c73b06a2
This is driven by 3 things: - netd no longer needs setattr, since this is now done by bpfloader - nothing should ever unpin maps or programs - generic cleanups and additional neverallows Test: build, atest Signed-off-by: Maciej Żenczykowski <maze@google.com> Change-Id: I881cc8bf9fe062aaff709727406c5a51fc363c8e
40 lines
1.5 KiB
Text
40 lines
1.5 KiB
Text
# bpf program loader
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type bpfloader, domain;
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type bpfloader_exec, system_file_type, exec_type, file_type;
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typeattribute bpfloader coredomain;
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# These permissions are required to pin ebpf maps & programs.
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allow bpfloader fs_bpf:dir { search write add_name };
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allow bpfloader fs_bpf:file { create setattr };
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# Allow bpfloader to create bpf maps and programs.
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allow bpfloader self:bpf { map_create map_read map_write prog_load prog_run };
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allow bpfloader self:capability { chown sys_admin };
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###
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### Neverallow rules
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###
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# TODO: get rid of init & vendor_init
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neverallow { domain -init -vendor_init } fs_bpf:dir setattr;
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neverallow { domain -bpfloader } fs_bpf:dir { write add_name };
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neverallow domain fs_bpf:dir { reparent rename rmdir };
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# TODO: get rid of init & vendor_init
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neverallow { domain -bpfloader -init -vendor_init } fs_bpf:file setattr;
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neverallow { domain -bpfloader } fs_bpf:file create;
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neverallow domain fs_bpf:file { rename unlink };
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neverallow { domain -bpfloader } *:bpf { map_create prog_load };
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neverallow { domain -bpfloader -netd -netutils_wrapper -system_server } *:bpf prog_run;
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neverallow { domain -bpfloader -netd -system_server } *:bpf { map_read map_write };
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neverallow { domain -bpfloader -init } bpfloader_exec:file { execute execute_no_trans };
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neverallow bpfloader domain:{ tcp_socket udp_socket rawip_socket } *;
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# No domain should be allowed to ptrace bpfloader
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neverallow { domain userdebug_or_eng(`-llkd') } bpfloader:process ptrace;
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set_prop(bpfloader, bpf_progs_loaded_prop)
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