Since 2.8.0 OVS runs as non-root user on rhel distros, but the current
implementation breaks the ability to run as root with DPDK and as a
consequence there is no way possible to use UIO drivers on kernel 4.0 and
newer [1, 2].
[1]
http://dpdk.org/browse/dpdk/commit/?id=cdc242f260e766bd95a658b5e0686a62ec04f5b0
[2] https://www.kernel.org/doc/Documentation/vm/pagemap.txt
Signed-off-by: Marcos Schwarz <marcos.f....@gmail.com>
---
lib/daemon-unix.c | 3 ++-
rhel/usr_lib_systemd_system_ovs-vswitchd.service.in | 2 +-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/lib/daemon-unix.c b/lib/daemon-unix.c
index adb549c98..06528e9ab 100644
--- a/lib/daemon-unix.c
+++ b/lib/daemon-unix.c
@@ -1047,5 +1047,6 @@ daemon_set_new_user(const char *user_spec)
}
}
- switch_user = true;
+ if (!uid_verify(uid) || !gid_verify(gid))
+ switch_user = true;
}
diff --git a/rhel/usr_lib_systemd_system_ovs-vswitchd.service.in b/rhel/
usr_lib_systemd_system_ovs-vswitchd.service.in
index c6d9aa1b8..9b01c9271 100644
--- a/rhel/usr_lib_systemd_system_ovs-vswitchd.service.in
+++ b/rhel/usr_lib_systemd_system_ovs-vswitchd.service.in
@@ -14,7 +14,7 @@ Environment=HOME=/var/run/openvswitch
EnvironmentFile=/etc/openvswitch/default.conf
EnvironmentFile=-/etc/sysconfig/openvswitch
@begin_dpdk@
-ExecStartPre=-/usr/bin/chown :hugetlbfs /dev/hugepages
+ExecStartPre=-/bin/sh -c '/usr/bin/chown :${OVS_USER_ID##*:}
/dev/hugepages'
ExecStartPre=-/usr/bin/chmod 0775 /dev/hugepages
@end_dpdk@
ExecStart=/usr/share/openvswitch/scripts/ovs-ctl \
--
2.14.3
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