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mirror of https://gitlab.com/libvirt/libvirt.git synced 2024-12-23 21:34:54 +03:00

qemu_passt: Report passt's error on failed start

When starting passt, it may write something onto its stderr
(convincing it to print even more is addressed later). Pass this
string we read to user.

Since we're not daemonizing passt anymore (see previous commit),
we can let virCommand module do all the heavy lifting and switch
to virCommandSetErrorBuffer() instead of reading error from an
FD.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
This commit is contained in:
Michal Privoznik 2023-02-16 12:19:26 +01:00
parent c0efdbdb9f
commit 02355840ce

View File

@ -144,18 +144,18 @@ qemuPasstStart(virDomainObj *vm,
g_autofree char *passtSocketName = qemuPasstCreateSocketPath(vm, net);
g_autoptr(virCommand) cmd = NULL;
g_autofree char *pidfile = qemuPasstCreatePidFilename(vm, net);
g_autofree char *errbuf = NULL;
char macaddr[VIR_MAC_STRING_BUFLEN];
size_t i;
pid_t pid = (pid_t) -1;
int exitstatus = 0;
int cmdret = 0;
VIR_AUTOCLOSE errfd = -1;
cmd = virCommandNew(PASST);
virCommandClearCaps(cmd);
virCommandSetPidFile(cmd, pidfile);
virCommandSetErrorFD(cmd, &errfd);
virCommandSetErrorBuffer(cmd, &errbuf);
virCommandAddArgList(cmd,
"--one-off",
@ -266,7 +266,7 @@ qemuPasstStart(virDomainObj *vm,
if (cmdret < 0 || exitstatus != 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Could not start 'passt'. exitstatus: %d"), exitstatus);
_("Could not start 'passt': %s"), NULLSTR(errbuf));
goto error;
}