85708ec4f9
There is some overlap between socket rules in app.te and the net.te rules, but they aren't quite identical since not all app domains presently include the net_domain() macro and because the rules in app.te allow more permissions for netlink_route_socket and allow rawip_socket permissions for ping. The current app.te rules prevent one from ever creating a non-networked app domain. Resolve this overlap by: 1) Adding the missing permissions allowed by app.te to net.te for netlink_route_socket and rawip_socket. 2) Adding net_domain() calls to all existing app domains that do not already have it. 3) Deleting the redundant socket rules from app.te. Then we'll have no effective change in what is allowed for apps but allow one to define app domains in the future that are not allowed network access. Also cleanup net.te to use the create_socket_perms macro rather than * and add macros for stream socket permissions. Change-Id: I6e80d65b0ccbd48bd2b7272c083a4473e2b588a9 Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
33 lines
851 B
Text
33 lines
851 B
Text
# Network types
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type node, node_type;
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type netif, netif_type;
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type port, port_type;
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# Use network sockets.
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allow netdomain self:tcp_socket create_stream_socket_perms;
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allow netdomain self:{ udp_socket rawip_socket } create_socket_perms;
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# Connect to ports.
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allow netdomain port_type:tcp_socket name_connect;
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# Bind to ports.
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allow netdomain node_type:{ tcp_socket udp_socket } node_bind;
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allow netdomain port_type:udp_socket name_bind;
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allow netdomain port_type:tcp_socket name_bind;
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# See changes to the routing table.
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allow netdomain self:netlink_route_socket {
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read
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bind
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create
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nlmsg_read
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ioctl
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getattr
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setattr
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getopt
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setopt
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shutdown
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};
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# Talks to netd via dnsproxyd socket.
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unix_socket_connect(netdomain, dnsproxyd, netd)
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# Connect to mdnsd via mdnsd socket.
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unix_socket_connect(netdomain, mdnsd, mdnsd)
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