0f75a62e2c
These permissions allow the system server to create and bind a UDP socket such that it gains the SOCK_BINDPORT_LOCK. (ref: af_inet.c - inet_bind()) This prevents the user from disconnecting the socket, which would create a security vulnerability. The user may then use the provided socket, which is always IPv4/UDP, for IKE negotiation. Thus, an un-trusted user app must be able to use the socket for communication. -ALLOW: read, write, connect, sendto, and recvfrom. -NEVERALLOW: anything else Bug: 30984788 Test: CTS tested via IpSecManagerTest:testUdpEncapsulationSocket Change-Id: I045ba941797ac12fd14a0cce42efdd2abc4d67e0
37 lines
1.6 KiB
Text
37 lines
1.6 KiB
Text
###
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### Untrusted apps.
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###
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### This file defines the rules for untrusted apps.
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### Apps are labeled based on mac_permissions.xml (maps signer and
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### optionally package name to seinfo value) and seapp_contexts (maps UID
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### and optionally seinfo value to domain for process and type for data
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### directory). The untrusted_app domain is the default assignment in
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### seapp_contexts for any app with UID between APP_AID (10000)
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### and AID_ISOLATED_START (99000) if the app has no specific seinfo
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### value as determined from mac_permissions.xml. In current AOSP, this
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### domain is assigned to all non-system apps as well as to any system apps
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### that are not signed by the platform key. To move
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### a system app into a specific domain, add a signer entry for it to
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### mac_permissions.xml and assign it one of the pre-existing seinfo values
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### or define and use a new seinfo value in both mac_permissions.xml and
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### seapp_contexts.
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###
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typeattribute untrusted_app coredomain;
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app_domain(untrusted_app)
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untrusted_app_domain(untrusted_app)
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net_domain(untrusted_app)
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bluetooth_domain(untrusted_app)
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# allow untrusted apps to use UDP sockets provided by the system server but not
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# modify them other than to connect
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allow untrusted_app system_server:udp_socket { connect getattr read recvfrom sendto write };
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# Allow the allocation and use of ptys
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# Used by: https://play.google.com/store/apps/details?id=jackpal.androidterm
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create_pty(untrusted_app)
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neverallow untrusted_app system_server:udp_socket {
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accept append bind create getopt ioctl listen lock name_bind
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relabelfrom relabelto setattr setopt shutdown };
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