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Misc xen driver bug/crash fixes

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This commit is contained in:
Daniel P. Berrange 2009-01-29 23:01:37 +00:00
parent 3a8d93ab36
commit 1c64dc76c1
5 changed files with 110 additions and 121 deletions
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12
ChangeLog
View File

@ -1,3 +1,15 @@
Thu Jan 29 23:01:22 GMT 2009 Daniel P. Berrange <berrange@redhat.com>
Misc Xen driver crash/bug fixes
* src/remote_internal.c: Re-factor startup of secondary driver
activation to fix missing initialization & crash. Fix memory
leak in error reporting
* src/xen_unified.c: Don't activate inotify driver if non-root
* src/xend_internal.c: Don't report errors when probing for
XenD TCP port if unprivileged, allow caller to do it. Fix bad
return values in open method
* src/xs_internal.c: Fix double free
Thu Jan 29 17:22:53 GMT 2009 John Levon <john.levon@sun.com>
* src/xend_internal.c: Fix xend XML generation when CPU pinning

155
src/remote_internal.c
View File

@ -892,6 +892,57 @@ doRemoteOpen (virConnectPtr conn,
goto cleanup;
}
static struct private_data *
remoteAllocPrivateData(virConnectPtr conn)
{
struct private_data *priv;
if (VIR_ALLOC(priv) < 0) {
virReportOOMError(conn);
return NULL;
}
if (virMutexInit(&priv->lock) < 0) {
error(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot initialize mutex"));
VIR_FREE(priv);
return NULL;
}
remoteDriverLock(priv);
priv->localUses = 1;
priv->watch = -1;
priv->sock = -1;
return priv;
}
static int
remoteOpenSecondaryDriver(virConnectPtr conn,
virConnectAuthPtr auth,
int flags,
struct private_data **priv)
{
int ret;
int rflags = 0;
if (!((*priv) = remoteAllocPrivateData(conn)))
return VIR_DRV_OPEN_ERROR;
if (flags & VIR_CONNECT_RO)
rflags |= VIR_DRV_OPEN_REMOTE_RO;
rflags |= VIR_DRV_OPEN_REMOTE_UNIX;
ret = doRemoteOpen(conn, *priv, auth, rflags);
if (ret != VIR_DRV_OPEN_SUCCESS) {
remoteDriverUnlock(*priv);
VIR_FREE(*priv);
} else {
(*priv)->localUses = 1;
remoteDriverUnlock(*priv);
}
return ret;
}
static virDrvOpenStatus
remoteOpen (virConnectPtr conn,
virConnectAuthPtr auth,
@ -903,20 +954,8 @@ remoteOpen (virConnectPtr conn,
if (inside_daemon)
return VIR_DRV_OPEN_DECLINED;
if (VIR_ALLOC(priv) < 0) {
virReportOOMError (conn);
if (!(priv = remoteAllocPrivateData(conn)))
return VIR_DRV_OPEN_ERROR;
}
if (virMutexInit(&priv->lock) < 0) {
error(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot initialize mutex"));
VIR_FREE(priv);
return VIR_DRV_OPEN_ERROR;
}
remoteDriverLock(priv);
priv->localUses = 1;
priv->watch = -1;
if (flags & VIR_CONNECT_RO)
rflags |= VIR_DRV_OPEN_REMOTE_RO;
@ -971,7 +1010,6 @@ remoteOpen (virConnectPtr conn,
#endif
}
priv->sock = -1;
ret = doRemoteOpen(conn, priv, auth, rflags);
if (ret != VIR_DRV_OPEN_SUCCESS) {
conn->privateData = NULL;
@ -3085,30 +3123,13 @@ remoteNetworkOpen (virConnectPtr conn,
* which doesn't have its own impl of the network APIs.
*/
struct private_data *priv;
int ret, rflags = 0;
if (VIR_ALLOC(priv) < 0) {
virReportOOMError (conn);
return VIR_DRV_OPEN_ERROR;
}
if (virMutexInit(&priv->lock) < 0) {
error(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot initialize mutex"));
VIR_FREE(priv);
return VIR_DRV_OPEN_ERROR;
}
if (flags & VIR_CONNECT_RO)
rflags |= VIR_DRV_OPEN_REMOTE_RO;
rflags |= VIR_DRV_OPEN_REMOTE_UNIX;
priv->sock = -1;
ret = doRemoteOpen(conn, priv, auth, rflags);
if (ret != VIR_DRV_OPEN_SUCCESS) {
conn->networkPrivateData = NULL;
VIR_FREE(priv);
} else {
priv->localUses = 1;
int ret;
ret = remoteOpenSecondaryDriver(conn,
auth,
flags,
&priv);
if (ret == VIR_DRV_OPEN_SUCCESS)
conn->networkPrivateData = priv;
}
return ret;
}
}
@ -3598,30 +3619,13 @@ remoteStorageOpen (virConnectPtr conn,
* which doesn't have its own impl of the network APIs.
*/
struct private_data *priv;
int ret, rflags = 0;
if (VIR_ALLOC(priv) < 0) {
virReportOOMError (NULL);
return VIR_DRV_OPEN_ERROR;
}
if (virMutexInit(&priv->lock) < 0) {
error(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot initialize mutex"));
VIR_FREE(priv);
return VIR_DRV_OPEN_ERROR;
}
if (flags & VIR_CONNECT_RO)
rflags |= VIR_DRV_OPEN_REMOTE_RO;
rflags |= VIR_DRV_OPEN_REMOTE_UNIX;
priv->sock = -1;
ret = doRemoteOpen(conn, priv, auth, rflags);
if (ret != VIR_DRV_OPEN_SUCCESS) {
conn->storagePrivateData = NULL;
VIR_FREE(priv);
} else {
priv->localUses = 1;
int ret;
ret = remoteOpenSecondaryDriver(conn,
auth,
flags,
&priv);
if (ret == VIR_DRV_OPEN_SUCCESS)
conn->storagePrivateData = priv;
}
return ret;
}
}
@ -4551,30 +4555,13 @@ remoteDevMonOpen(virConnectPtr conn,
* which doesn't have its own impl of the network APIs.
*/
struct private_data *priv;
int ret, rflags = 0;
if (VIR_ALLOC(priv) < 0) {
virReportOOMError (NULL);
return VIR_DRV_OPEN_ERROR;
}
if (virMutexInit(&priv->lock) < 0) {
error(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot initialize mutex"));
VIR_FREE(priv);
return VIR_DRV_OPEN_ERROR;
}
if (flags & VIR_CONNECT_RO)
rflags |= VIR_DRV_OPEN_REMOTE_RO;
rflags |= VIR_DRV_OPEN_REMOTE_UNIX;
priv->sock = -1;
ret = doRemoteOpen(conn, priv, auth, rflags);
if (ret != VIR_DRV_OPEN_SUCCESS) {
conn->devMonPrivateData = NULL;
VIR_FREE(priv);
} else {
priv->localUses = 1;
int ret;
ret = remoteOpenSecondaryDriver(conn,
auth,
flags,
&priv);
if (ret == VIR_DRV_OPEN_SUCCESS)
conn->devMonPrivateData = priv;
}
return ret;
}
}
@ -6429,6 +6416,7 @@ cleanup:
thiscall->err.domain == VIR_FROM_REMOTE &&
thiscall->err.code == VIR_ERR_RPC &&
thiscall->err.level == VIR_ERR_ERROR &&
thiscall->err.message &&
STRPREFIX(*thiscall->err.message, "unknown procedure")) {
rv = -2;
} else {
@ -6436,6 +6424,7 @@ cleanup:
&thiscall->err);
rv = -1;
}
xdr_free((xdrproc_t)xdr_remote_error, (char *)&thiscall->err);
} else {
rv = 0;
}

12
src/xen_unified.c
View File

@ -355,11 +355,13 @@ xenUnifiedOpen (virConnectPtr conn, virConnectAuthPtr auth, int flags)
}
#if WITH_XEN_INOTIFY
DEBUG0("Trying Xen inotify sub-driver");
if (drivers[XEN_UNIFIED_INOTIFY_OFFSET]->open(conn, auth, flags) ==
VIR_DRV_OPEN_SUCCESS) {
DEBUG0("Activated Xen inotify sub-driver");
priv->opened[XEN_UNIFIED_INOTIFY_OFFSET] = 1;
if (xenHavePrivilege()) {
DEBUG0("Trying Xen inotify sub-driver");
if (drivers[XEN_UNIFIED_INOTIFY_OFFSET]->open(conn, auth, flags) ==
VIR_DRV_OPEN_SUCCESS) {
DEBUG0("Activated Xen inotify sub-driver");
priv->opened[XEN_UNIFIED_INOTIFY_OFFSET] = 1;
}
}
#endif

50
src/xend_internal.c
View File

@ -840,9 +840,11 @@ xenDaemonOpen_tcp(virConnectPtr conn, const char *host, const char *port)
freeaddrinfo (res);
if (!priv->addrlen) {
virReportSystemError(conn, saved_errno,
_("unable to connect to '%s:%s'"),
host, port);
/* Don't raise error when unprivileged, since proxy takes over */
if (xenHavePrivilege())
virReportSystemError(conn, saved_errno,
_("unable to connect to '%s:%s'"),
host, port);
return -1;
}
@ -2733,7 +2735,6 @@ error:
* @flags: combination of virDrvOpenFlag(s)
*
* Creates a localhost Xen Daemon connection
* Note: this doesn't try to check if the connection actually works
*
* Returns 0 in case of success, -1 in case of error.
*/
@ -2742,7 +2743,8 @@ xenDaemonOpen(virConnectPtr conn,
virConnectAuthPtr auth ATTRIBUTE_UNUSED,
int flags ATTRIBUTE_UNUSED)
{
int ret;
char *port = NULL;
int ret = VIR_DRV_OPEN_ERROR;
/* Switch on the scheme, which we expect to be NULL (file),
* "http" or "xen".
@ -2753,45 +2755,30 @@ xenDaemonOpen(virConnectPtr conn,
virXendError(NULL, VIR_ERR_NO_CONNECT, __FUNCTION__);
goto failed;
}
ret = xenDaemonOpen_unix(conn, conn->uri->path);
if (ret < 0)
goto failed;
ret = xend_detect_config_version(conn);
if (ret == -1)
if (xenDaemonOpen_unix(conn, conn->uri->path) < 0 ||
xend_detect_config_version(conn) == -1)
goto failed;
}
else if (STRCASEEQ (conn->uri->scheme, "xen")) {
/*
* try first to open the unix socket
*/
ret = xenDaemonOpen_unix(conn, "/var/lib/xend/xend-socket");
if (ret < 0)
goto try_http;
ret = xend_detect_config_version(conn);
if (ret != -1)
if (xenDaemonOpen_unix(conn, "/var/lib/xend/xend-socket") == 0 &&
xend_detect_config_version(conn) != -1)
goto done;
try_http:
/*
* try though http on port 8000
*/
ret = xenDaemonOpen_tcp(conn, "localhost", "8000");
if (ret < 0)
goto failed;
ret = xend_detect_config_version(conn);
if (ret == -1)
if (xenDaemonOpen_tcp(conn, "localhost", "8000") < 0 ||
xend_detect_config_version(conn) == -1)
goto failed;
} else if (STRCASEEQ (conn->uri->scheme, "http")) {
char *port;
if (virAsprintf(&port, "%d", conn->uri->port) == -1)
goto failed;
ret = xenDaemonOpen_tcp(conn, conn->uri->server, port);
VIR_FREE(port);
if (ret < 0)
goto failed;
ret = xend_detect_config_version(conn);
if (ret == -1)
if (xenDaemonOpen_tcp(conn, conn->uri->server, port) < 0 ||
xend_detect_config_version(conn) == -1)
goto failed;
} else {
virXendError(NULL, VIR_ERR_NO_CONNECT, __FUNCTION__);
@ -2799,10 +2786,11 @@ xenDaemonOpen(virConnectPtr conn,
}
done:
return(ret);
ret = VIR_DRV_OPEN_SUCCESS;
failed:
return(-1);
VIR_FREE(port);
return ret;
}

2
src/xs_internal.c
View File

@ -599,8 +599,6 @@ xenStoreDoListDomains(xenUnifiedPrivatePtr priv, int *ids, int maxids)
ids[ret++] = (int) id;
}
free(idlist);
out:
VIR_FREE (idlist);
return ret;