selinux-refpolicy/strict/macros/network_macros.te

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#################################
#
# can_network(domain)
#
# Permissions for accessing the network.
# See types/network.te for the network types.
# See net_contexts for security contexts for network entities.
#
define(`base_can_network',`
#
# Allow the domain to create and use $2 sockets.
# Other kinds of sockets must be separately authorized for use.
allow $1 self:$2_socket connected_socket_perms;
#
# Allow the domain to send or receive using any network interface.
# netif_type is a type attribute for all network interface types.
#
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allow $1 netif_t:netif { $2_recv $2_send rawip_send rawip_recv };
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#
# Allow the domain to send to or receive from any node.
# node_type is a type attribute for all node types.
#
allow $1 node_type:node { $2_send rawip_send };
allow $1 node_type:node { $2_recv rawip_recv };
#
# Allow the domain to send to or receive from any port.
# port_type is a type attribute for all port types.
#
ifelse($3, `', `
allow $1 port_type:$2_socket { send_msg recv_msg };
', `
allow $1 $3:$2_socket { send_msg recv_msg };
')
# XXX Allow binding to any node type. Remove once
# individual rules have been added to all domains that
# bind sockets.
allow $1 node_type:$2_socket node_bind;
#
# Allow access to network files including /etc/resolv.conf
#
allow $1 net_conf_t:file r_file_perms;
')dnl end can_network definition
#################################
#
# can_network_server_tcp(domain)
#
# Permissions for accessing a tcp network.
# See types/network.te for the network types.
# See net_contexts for security contexts for network entities.
#
define(`can_network_server_tcp',`
base_can_network($1, tcp, `$2')
allow $1 self:tcp_socket { listen accept };
')
#################################
#
# can_network_client_tcp(domain)
#
# Permissions for accessing a tcp network.
# See types/network.te for the network types.
# See net_contexts for security contexts for network entities.
#
define(`can_network_client_tcp',`
base_can_network($1, tcp, `$2')
allow $1 self:tcp_socket { connect };
')
#################################
#
# can_network_tcp(domain)
#
# Permissions for accessing the network.
# See types/network.te for the network types.
# See net_contexts for security contexts for network entities.
#
define(`can_network_tcp',`
can_network_server_tcp($1, `$2')
can_network_client_tcp($1, `$2')
')
#################################
#
# can_network_udp(domain)
#
# Permissions for accessing the network.
# See types/network.te for the network types.
# See net_contexts for security contexts for network entities.
#
define(`can_network_udp',`
base_can_network($1, udp, `$2')
allow $1 self:udp_socket { connect };
')
#################################
#
# can_network_server(domain)
#
# Permissions for accessing the network.
# See types/network.te for the network types.
# See net_contexts for security contexts for network entities.
#
define(`can_network_server',`
can_network_server_tcp($1, `$2')
can_network_udp($1, `$2')
')dnl end can_network_server definition
#################################
#
# can_network_client(domain)
#
# Permissions for accessing the network.
# See types/network.te for the network types.
# See net_contexts for security contexts for network entities.
#
define(`can_network_client',`
can_network_client_tcp($1, `$2')
can_network_udp($1, `$2')
')dnl end can_network_client definition
#################################
#
# can_network(domain)
#
# Permissions for accessing the network.
# See types/network.te for the network types.
# See net_contexts for security contexts for network entities.
#
define(`can_network',`
can_network_tcp($1, `$2')
can_network_udp($1, `$2')
ifdef(`mount.te', `
#
# Allow the domain to send NFS client requests via the socket
# created by mount.
#
allow $1 mount_t:udp_socket rw_socket_perms;
')
')dnl end can_network definition
define(`can_resolve',`
can_network_udp($1, `dns_port_t')
')
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define(`can_portmap',`
can_network_client($1, `portmap_port_t')
allow $1 portmap_port_t:tcp_socket name_connect;
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')
define(`can_ldap',`
can_network_client_tcp($1, `ldap_port_t')
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allow $1 ldap_port_t:tcp_socket name_connect;
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')
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define(`can_winbind',`
ifdef(`winbind.te', `
allow $1 winbind_var_run_t:dir { getattr search };
allow $1 winbind_t:unix_stream_socket connectto;
allow $1 winbind_var_run_t:sock_file { getattr read write };
')
')