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41 results

net.te

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    Jeff Vander Stoep authored and Jeffrey Vander Stoep committed
    (cherry picked from commit 6ba383c5)
    
    Restrict unix_dgram_socket and unix_stream_socket to a whitelist.
    Disallow all ioctls for netlink_selinux_socket and netlink_route_socket.
    
    Neverallow third party app use of all ioctls other than
    unix_dgram_socket, unix_stream_socket, netlink_selinux_socket,
    netlink_route_socket, tcp_socket, udp_socket and rawip_socket.
    
    Bug: 28171804
    Change-Id: Icfe3486a62fc2fc2d2abd8d4030a5fbdd0ab30ab
    32333536
    History
    net.te 914 B
    # Network types
    type node, node_type;
    type netif, netif_type;
    type port, port_type;
    
    # Use network sockets.
    allow netdomain self:tcp_socket create_stream_socket_perms;
    allow netdomain self:{ udp_socket rawip_socket } create_socket_perms;
    # Connect to ports.
    allow netdomain port_type:tcp_socket name_connect;
    # Bind to ports.
    allow netdomain node_type:{ tcp_socket udp_socket } node_bind;
    allow netdomain port_type:udp_socket name_bind;
    allow netdomain port_type:tcp_socket name_bind;
    # See changes to the routing table.
    allow netdomain self:netlink_route_socket { create read getattr write setattr lock append bind connect getopt setopt shutdown nlmsg_read };
    
    # Talks to netd via dnsproxyd socket.
    unix_socket_connect(netdomain, dnsproxyd, netd)
    
    # Talks to netd via fwmarkd socket.
    unix_socket_connect(netdomain, fwmarkd, netd)
    
    # Connect to mdnsd via mdnsd socket.
    unix_socket_connect(netdomain, mdnsd, mdnsd)