From 3c19d0b46bb05aef5dcaa2ce83c31b15ee8ae11b Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Thu, 9 Feb 2017 10:28:23 +0100 Subject: [PATCH] units: restrict namespace for a good number of our own services Basically, we turn it on for most long-running services, with the exception of machined (whose child processes need to join containers here and there), and importd (which sandboxes tar in a CLONE_NEWNET namespace). machined is left unrestricted, and importd is restricted to use only "net" --- units/systemd-hostnamed.service.in | 1 + units/systemd-importd.service.in | 1 + units/systemd-journal-gatewayd.service.in | 1 + units/systemd-journal-remote.service.in | 1 + units/systemd-journal-upload.service.in | 1 + units/systemd-journald.service.in | 1 + units/systemd-localed.service.in | 1 + units/systemd-logind.service.in | 1 + units/systemd-timedated.service.in | 1 + units/systemd-timesyncd.service.in | 1 + 10 files changed, 10 insertions(+) diff --git a/units/systemd-hostnamed.service.in b/units/systemd-hostnamed.service.in index 89d942b0722..8a551403cff 100644 --- a/units/systemd-hostnamed.service.in +++ b/units/systemd-hostnamed.service.in @@ -24,6 +24,7 @@ ProtectControlGroups=yes ProtectKernelTunables=yes MemoryDenyWriteExecute=yes RestrictRealtime=yes +RestrictNamespaces=yes RestrictAddressFamilies=AF_UNIX SystemCallFilter=~@clock @cpu-emulation @debug @keyring @module @mount @obsolete @raw-io SystemCallArchitectures=native diff --git a/units/systemd-importd.service.in b/units/systemd-importd.service.in index 2a8a683d95f..de2431739ff 100644 --- a/units/systemd-importd.service.in +++ b/units/systemd-importd.service.in @@ -19,6 +19,7 @@ CapabilityBoundingSet=CAP_CHOWN CAP_FOWNER CAP_FSETID CAP_MKNOD CAP_SETFCAP CAP_ NoNewPrivileges=yes MemoryDenyWriteExecute=yes RestrictRealtime=yes +RestrictNamespaces=net RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 SystemCallFilter=~@clock @cpu-emulation @debug @keyring @module @obsolete @raw-io SystemCallArchitectures=native diff --git a/units/systemd-journal-gatewayd.service.in b/units/systemd-journal-gatewayd.service.in index b0b934deb21..677cb2a04b3 100644 --- a/units/systemd-journal-gatewayd.service.in +++ b/units/systemd-journal-gatewayd.service.in @@ -24,6 +24,7 @@ ProtectControlGroups=yes ProtectKernelTunables=yes MemoryDenyWriteExecute=yes RestrictRealtime=yes +RestrictNamespaces=yes RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 SystemCallArchitectures=native diff --git a/units/systemd-journal-remote.service.in b/units/systemd-journal-remote.service.in index bc384b83824..cab7778ddc7 100644 --- a/units/systemd-journal-remote.service.in +++ b/units/systemd-journal-remote.service.in @@ -24,6 +24,7 @@ ProtectControlGroups=yes ProtectKernelTunables=yes MemoryDenyWriteExecute=yes RestrictRealtime=yes +RestrictNamespaces=yes RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 SystemCallArchitectures=native diff --git a/units/systemd-journal-upload.service.in b/units/systemd-journal-upload.service.in index d28a62bb35e..f539c7dc1f8 100644 --- a/units/systemd-journal-upload.service.in +++ b/units/systemd-journal-upload.service.in @@ -24,6 +24,7 @@ ProtectControlGroups=yes ProtectKernelTunables=yes MemoryDenyWriteExecute=yes RestrictRealtime=yes +RestrictNamespaces=yes RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 SystemCallArchitectures=native diff --git a/units/systemd-journald.service.in b/units/systemd-journald.service.in index b2e7eeeda3f..adabedd977b 100644 --- a/units/systemd-journald.service.in +++ b/units/systemd-journald.service.in @@ -26,6 +26,7 @@ FileDescriptorStoreMax=1024 CapabilityBoundingSet=CAP_SYS_ADMIN CAP_DAC_OVERRIDE CAP_SYS_PTRACE CAP_SYSLOG CAP_AUDIT_CONTROL CAP_AUDIT_READ CAP_CHOWN CAP_DAC_READ_SEARCH CAP_FOWNER CAP_SETUID CAP_SETGID CAP_MAC_OVERRIDE MemoryDenyWriteExecute=yes RestrictRealtime=yes +RestrictNamespaces=yes RestrictAddressFamilies=AF_UNIX AF_NETLINK SystemCallFilter=~@clock @cpu-emulation @debug @keyring @module @mount @obsolete @raw-io SystemCallArchitectures=native diff --git a/units/systemd-localed.service.in b/units/systemd-localed.service.in index af2cdfffbeb..1b6c163ef4a 100644 --- a/units/systemd-localed.service.in +++ b/units/systemd-localed.service.in @@ -24,6 +24,7 @@ ProtectControlGroups=yes ProtectKernelTunables=yes MemoryDenyWriteExecute=yes RestrictRealtime=yes +RestrictNamespaces=yes RestrictAddressFamilies=AF_UNIX SystemCallFilter=~@clock @cpu-emulation @debug @keyring @module @mount @obsolete @raw-io SystemCallArchitectures=native diff --git a/units/systemd-logind.service.in b/units/systemd-logind.service.in index fcbfd1debeb..93abeb3dca0 100644 --- a/units/systemd-logind.service.in +++ b/units/systemd-logind.service.in @@ -27,6 +27,7 @@ WatchdogSec=3min CapabilityBoundingSet=CAP_SYS_ADMIN CAP_MAC_ADMIN CAP_AUDIT_CONTROL CAP_CHOWN CAP_KILL CAP_DAC_READ_SEARCH CAP_DAC_OVERRIDE CAP_FOWNER CAP_SYS_TTY_CONFIG MemoryDenyWriteExecute=yes RestrictRealtime=yes +RestrictNamespaces=yes RestrictAddressFamilies=AF_UNIX AF_NETLINK AF_INET AF_INET6 SystemCallFilter=~@clock @cpu-emulation @debug @keyring @module @obsolete @raw-io SystemCallArchitectures=native diff --git a/units/systemd-timedated.service.in b/units/systemd-timedated.service.in index 7608d9da289..26756d6e017 100644 --- a/units/systemd-timedated.service.in +++ b/units/systemd-timedated.service.in @@ -22,6 +22,7 @@ ProtectControlGroups=yes ProtectKernelTunables=yes MemoryDenyWriteExecute=yes RestrictRealtime=yes +RestrictNamespaces=yes RestrictAddressFamilies=AF_UNIX SystemCallFilter=~@cpu-emulation @debug @keyring @module @mount @obsolete @raw-io SystemCallArchitectures=native diff --git a/units/systemd-timesyncd.service.in b/units/systemd-timesyncd.service.in index 46b81ebab3a..5eb3f2362f3 100644 --- a/units/systemd-timesyncd.service.in +++ b/units/systemd-timesyncd.service.in @@ -32,6 +32,7 @@ ProtectControlGroups=yes ProtectKernelTunables=yes MemoryDenyWriteExecute=yes RestrictRealtime=yes +RestrictNamespaces=yes RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 SystemCallFilter=~@cpu-emulation @debug @keyring @module @mount @obsolete @raw-io SystemCallArchitectures=native