Commit 32a9aac switched libvirt to use the XDG base directories
to locate most of its data/config. In particular, the per-user socket
for qemu:///session is now stored in the XDG runtime directory.
This directory is located by looking at the XDG_RUNTIME_DIR environment
variable, with a fallback to ~/.cache/libvirt if this variable is not
set.
When the daemon is autospawned because a client application wants
to use qemu:///session, the daemon is ran in a clean environment
which does not contain XDG_RUNTIME_DIR. It will create its socket
in ~/.cache/libvirt. If the client application has XDG_RUNTIME_DIR
set, it will not look for the socket in the fallback place, and will
fail to connect to the autospawned daemon.
This patch adds XDG_RUNTIME_DIR to the daemon environment before
auto-starting it. I've done this in virNetSocketForkDaemon rather
than in virCommandAddEnvPassCommon as I wasn't sure we want to pass
these variables to other commands libvirt spawns. XDG_CACHE_HOME
and XDG_CONFIG_HOME are also added to the daemon env as it makes use
of those as well.
---
src/rpc/virnetsocket.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/rpc/virnetsocket.c b/src/rpc/virnetsocket.c
index 0b32ffe..08dfbb0 100644
--- a/src/rpc/virnetsocket.c
+++ b/src/rpc/virnetsocket.c
@@ -97,6 +97,9 @@ static int virNetSocketForkDaemon(const char *binary)
NULL);
virCommandAddEnvPassCommon(cmd);
+ virCommandAddEnvPass(cmd, "XDG_CACHE_HOME");
+ virCommandAddEnvPass(cmd, "XDG_CONFIG_HOME");
+ virCommandAddEnvPass(cmd, "XDG_RUNTIME_DIR");
virCommandClearCaps(cmd);
virCommandDaemonize(cmd);
ret = virCommandRun(cmd, NULL);
--
1.7.10.4
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