1601132086
Replace * or any permission set containing create with create_socket_perms or create_stream_socket_perms. Add net_domain() to all domains using network sockets and delete rules already covered by domain.te or net.te. For netlink_route_socket, only nlmsg_write needs to be separately granted to specific domains that are permitted to modify the routing table. Clarification: read/write permissions are just ability to perform read/recv() or write/send() on the socket, whereas nlmsg_read/ nlmsg_write permissions control ability to observe or modify the underlying kernel state accessed via the socket. See security/selinux/nlmsgtab.c in the kernel for the mapping of netlink message types to nlmsg_read or nlmsg_write. Delete legacy rule for b/12061011. This change does not touch any rules where only read/write were allowed to a socket created by another domain (inherited across exec or received across socket or binder IPC). We may wish to rewrite some or all of those rules with the rw_socket_perms macro but that is a separate change. Change-Id: Ib0637ab86f6d388043eff928e5d96beb02e5450e Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
15 lines
434 B
Plaintext
15 lines
434 B
Plaintext
##
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# trusted execution environment (tee) daemon
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#
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type tee, domain;
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type tee_exec, exec_type, file_type;
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type tee_device, dev_type;
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type tee_data_file, file_type, data_file_type;
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init_daemon_domain(tee)
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allow tee self:capability { dac_override };
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allow tee tee_device:chr_file rw_file_perms;
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allow tee tee_data_file:dir rw_dir_perms;
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allow tee tee_data_file:file create_file_perms;
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allow tee self:netlink_socket create_socket_perms;
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