From f06d55da7b6521c7197a8f83456da8c765f924d7 Mon Sep 17 00:00:00 2001 From: Eric Blake Date: Fri, 27 Dec 2013 14:54:34 -0700 Subject: [PATCH] maint: reset error on entrance to public API We document that calling any public API wipes out all prior libvirt errors in the same thread; but weren't obeying this style in a few functions. There are a couple of nested uses of virConnectRef (in lxc and qemu reboot paths), but they should not be affected by this change in semantics since there should not be any previous error getting nuked (a later patch will clean up the nested calls, along with abuse of virConnectClose on cleanup paths which DOES nuke errors). * src/libvirt.c (virGetVersion, virConnectRef, virDomainRef) (virDomainGetSecurityLabel, virDomainGetSecurityLabelList) (virDomainSetMetadata, virDomainGetMetadata) (virNodeGetSecurityModel, virNetworkRef, virInterfaceRef) (virStoragePoolRef, virStorageVolRef, virNodeDeviceGetName) (virNodeDeviceRef, virSecretRef, virStreamRef, virNWFilterRef) (virDomainSnapshotRef): Reset error on entrance. (do_open): Drop redundant error reset. * src/libvirt-qemu.c (virDomainQemuAgentCommand): Likewise. * src/libvirt-lxc.c (virDomainLxcEnterNamespace) (virDomainLxcEnterSecurityLabel): Likewise. Signed-off-by: Eric Blake --- src/libvirt-lxc.c | 4 ++++ src/libvirt-qemu.c | 4 ++++ src/libvirt.c | 37 +++++++++++++++++++++++++++++++++++-- 3 files changed, 43 insertions(+), 2 deletions(-) diff --git a/src/libvirt-lxc.c b/src/libvirt-lxc.c index 3b1b254a06..984650fb8f 100644 --- a/src/libvirt-lxc.c +++ b/src/libvirt-lxc.c @@ -142,6 +142,8 @@ virDomainLxcEnterNamespace(virDomainPtr domain, "noldfdlist=%p, oldfdlist=%p, flags=%x", nfdlist, fdlist, noldfdlist, oldfdlist, flags); + virResetLastError(); + virCheckFlagsGoto(0, error); if (noldfdlist && oldfdlist) { @@ -203,6 +205,8 @@ virDomainLxcEnterSecurityLabel(virSecurityModelPtr model, VIR_DEBUG("model=%p, label=%p, oldlabel=%p, flags=%x", model, label, oldlabel, flags); + virResetLastError(); + virCheckFlagsGoto(0, error); virCheckNonNullArgGoto(model, error); diff --git a/src/libvirt-qemu.c b/src/libvirt-qemu.c index 661e9ff5de..8c53b272b5 100644 --- a/src/libvirt-qemu.c +++ b/src/libvirt-qemu.c @@ -112,6 +112,7 @@ error: return -1; } + /** * virDomainQemuAttach: * @conn: pointer to a hypervisor connection @@ -186,6 +187,7 @@ error: return NULL; } + /** * virDomainQemuAgentCommand: * @domain: a domain object @@ -217,6 +219,8 @@ virDomainQemuAgentCommand(virDomainPtr domain, VIR_DOMAIN_DEBUG(domain, "cmd=%s, timeout=%d, flags=%x", cmd, timeout, flags); + virResetLastError(); + if (!VIR_IS_CONNECTED_DOMAIN(domain)) { virLibDomainError(NULL, VIR_ERR_INVALID_DOMAIN, __FUNCTION__); virDispatchError(NULL); diff --git a/src/libvirt.c b/src/libvirt.c index c259d2fedf..a0a26e584c 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -929,6 +929,7 @@ virGetVersion(unsigned long *libVer, const char *type ATTRIBUTE_UNUSED, goto error; VIR_DEBUG("libVir=%p, type=%s, typeVer=%p", libVer, type, typeVer); + virResetLastError(); if (libVer == NULL) goto error; *libVer = LIBVIR_VERSION_NUMBER; @@ -1109,8 +1110,6 @@ do_open(const char *name, virConnectPtr ret; virConfPtr conf = NULL; - virResetLastError(); - ret = virGetConnect(); if (ret == NULL) return NULL; @@ -1543,6 +1542,8 @@ virConnectRef(virConnectPtr conn) { VIR_DEBUG("conn=%p refs=%d", conn, conn ? conn->object.u.s.refs : 0); + virResetLastError(); + if ((!VIR_IS_CONNECT(conn))) { virLibConnError(VIR_ERR_INVALID_CONN, __FUNCTION__); virDispatchError(NULL); @@ -2471,6 +2472,8 @@ virDomainRef(virDomainPtr domain) { VIR_DOMAIN_DEBUG(domain, "refs=%d", domain ? domain->object.u.s.refs : 0); + virResetLastError(); + if ((!VIR_IS_CONNECTED_DOMAIN(domain))) { virLibConnError(VIR_ERR_INVALID_DOMAIN, __FUNCTION__); virDispatchError(NULL); @@ -10731,6 +10734,8 @@ virDomainGetSecurityLabel(virDomainPtr domain, virSecurityLabelPtr seclabel) VIR_DOMAIN_DEBUG(domain, "seclabel=%p", seclabel); + virResetLastError(); + if (!VIR_IS_CONNECTED_DOMAIN(domain)) { virLibDomainError(VIR_ERR_INVALID_DOMAIN, __FUNCTION__); virDispatchError(NULL); @@ -10777,6 +10782,8 @@ virDomainGetSecurityLabelList(virDomainPtr domain, VIR_DOMAIN_DEBUG(domain, "seclabels=%p", seclabels); + virResetLastError(); + if (!VIR_IS_CONNECTED_DOMAIN(domain)) { virLibDomainError(VIR_ERR_INVALID_DOMAIN, __FUNCTION__); virDispatchError(NULL); @@ -10846,6 +10853,8 @@ virDomainSetMetadata(virDomainPtr domain, type, NULLSTR(metadata), NULLSTR(key), NULLSTR(uri), flags); + virResetLastError(); + if (!VIR_IS_CONNECTED_DOMAIN(domain)) { virLibDomainError(VIR_ERR_INVALID_DOMAIN, __FUNCTION__); goto error; @@ -10933,6 +10942,8 @@ virDomainGetMetadata(virDomainPtr domain, VIR_DOMAIN_DEBUG(domain, "type=%d, uri='%s', flags=%x", type, NULLSTR(uri), flags); + virResetLastError(); + if (!VIR_IS_CONNECTED_DOMAIN(domain)) { virLibDomainError(VIR_ERR_INVALID_DOMAIN, __FUNCTION__); goto error; @@ -10993,6 +11004,8 @@ virNodeGetSecurityModel(virConnectPtr conn, virSecurityModelPtr secmodel) { VIR_DEBUG("conn=%p secmodel=%p", conn, secmodel); + virResetLastError(); + if (!VIR_IS_CONNECT(conn)) { virLibConnError(VIR_ERR_INVALID_CONN, __FUNCTION__); virDispatchError(NULL); @@ -12106,6 +12119,8 @@ virNetworkRef(virNetworkPtr network) VIR_DEBUG("network=%p refs=%d", network, network ? network->object.u.s.refs : 0); + virResetLastError(); + if ((!VIR_IS_CONNECTED_NETWORK(network))) { virLibConnError(VIR_ERR_INVALID_NETWORK, __FUNCTION__); virDispatchError(NULL); @@ -13075,6 +13090,8 @@ virInterfaceRef(virInterfacePtr iface) { VIR_DEBUG("iface=%p refs=%d", iface, iface ? iface->object.u.s.refs : 0); + virResetLastError(); + if ((!VIR_IS_CONNECTED_INTERFACE(iface))) { virLibConnError(VIR_ERR_INVALID_INTERFACE, __FUNCTION__); virDispatchError(NULL); @@ -14146,6 +14163,8 @@ virStoragePoolRef(virStoragePoolPtr pool) { VIR_DEBUG("pool=%p refs=%d", pool, pool ? pool->object.u.s.refs : 0); + virResetLastError(); + if ((!VIR_IS_CONNECTED_STORAGE_POOL(pool))) { virLibConnError(VIR_ERR_INVALID_STORAGE_POOL, __FUNCTION__); virDispatchError(NULL); @@ -15273,6 +15292,8 @@ virStorageVolRef(virStorageVolPtr vol) { VIR_DEBUG("vol=%p refs=%d", vol, vol ? vol->object.u.s.refs : 0); + virResetLastError(); + if ((!VIR_IS_CONNECTED_STORAGE_VOL(vol))) { virLibConnError(VIR_ERR_INVALID_STORAGE_VOL, __FUNCTION__); virDispatchError(NULL); @@ -15808,6 +15829,8 @@ virNodeDeviceGetName(virNodeDevicePtr dev) { VIR_DEBUG("dev=%p, conn=%p", dev, dev ? dev->conn : NULL); + virResetLastError(); + if (!VIR_IS_CONNECTED_NODE_DEVICE(dev)) { virLibNodeDeviceError(VIR_ERR_INVALID_NODE_DEVICE, __FUNCTION__); virDispatchError(NULL); @@ -15983,6 +16006,8 @@ virNodeDeviceRef(virNodeDevicePtr dev) { VIR_DEBUG("dev=%p refs=%d", dev, dev ? dev->object.u.s.refs : 0); + virResetLastError(); + if ((!VIR_IS_CONNECTED_NODE_DEVICE(dev))) { virLibConnError(VIR_ERR_INVALID_NODE_DEVICE, __FUNCTION__); virDispatchError(NULL); @@ -17114,6 +17139,8 @@ virSecretRef(virSecretPtr secret) VIR_DEBUG("secret=%p refs=%d", secret, secret ? secret->object.u.s.refs : 0); + virResetLastError(); + if (!VIR_IS_CONNECTED_SECRET(secret)) { virLibSecretError(VIR_ERR_INVALID_SECRET, __FUNCTION__); virDispatchError(NULL); @@ -17211,6 +17238,8 @@ virStreamRef(virStreamPtr stream) VIR_DEBUG("stream=%p refs=%d", stream, stream ? stream->object.u.s.refs : 0); + virResetLastError(); + if ((!VIR_IS_CONNECTED_STREAM(stream))) { virLibConnError(VIR_ERR_INVALID_STREAM, __FUNCTION__); virDispatchError(NULL); @@ -18651,6 +18680,8 @@ virNWFilterRef(virNWFilterPtr nwfilter) VIR_DEBUG("nwfilter=%p refs=%d", nwfilter, nwfilter ? nwfilter->object.u.s.refs : 0); + virResetLastError(); + if ((!VIR_IS_CONNECTED_NWFILTER(nwfilter))) { virLibConnError(VIR_ERR_INVALID_NWFILTER, __FUNCTION__); virDispatchError(NULL); @@ -21000,6 +21031,8 @@ virDomainSnapshotRef(virDomainSnapshotPtr snapshot) VIR_DEBUG("snapshot=%p, refs=%d", snapshot, snapshot ? snapshot->object.u.s.refs : 0); + virResetLastError(); + if ((!VIR_IS_DOMAIN_SNAPSHOT(snapshot))) { virLibDomainSnapshotError(VIR_ERR_INVALID_DOMAIN_SNAPSHOT, __FUNCTION__); -- GitLab