mirror of
https://gitlab.com/libvirt/libvirt.git
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c727638b4b
Signed-off-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
383 lines
19 KiB
C
383 lines
19 KiB
C
/*
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* virterror.h: Error handling interfaces for the libvirt library
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* Summary: error handling interfaces for the libvirt library
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* Description: Provides the interfaces of the libvirt library to handle
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* errors raised while using the library.
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*
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* Copyright (C) 2006-2019 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#ifndef LIBVIRT_VIRTERROR_H
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# define LIBVIRT_VIRTERROR_H
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# include <libvirt/libvirt.h>
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# ifdef __cplusplus
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extern "C" {
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# endif
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/**
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* virErrorLevel:
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*
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* Indicates the level of an error
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*/
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typedef enum {
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VIR_ERR_NONE = 0,
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VIR_ERR_WARNING = 1, /* A simple warning */
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VIR_ERR_ERROR = 2 /* An error */
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} virErrorLevel;
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/**
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* virErrorDomain:
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*
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* Indicates where an error may have come from. This should remain
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* stable, with all additions placed at the end since libvirt 0.1.0.
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*/
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typedef enum {
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VIR_FROM_NONE = 0,
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VIR_FROM_XEN = 1, /* Error at Xen hypervisor layer */
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VIR_FROM_XEND = 2, /* Error at connection with xend daemon */
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VIR_FROM_XENSTORE = 3, /* Error at connection with xen store */
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VIR_FROM_SEXPR = 4, /* Error in the S-Expression code */
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VIR_FROM_XML = 5, /* Error in the XML code */
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VIR_FROM_DOM = 6, /* Error when operating on a domain */
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VIR_FROM_RPC = 7, /* Error in the XML-RPC code */
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VIR_FROM_PROXY = 8, /* Error in the proxy code; unused since
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0.8.6 */
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VIR_FROM_CONF = 9, /* Error in the configuration file handling */
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VIR_FROM_QEMU = 10, /* Error at the QEMU daemon */
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VIR_FROM_NET = 11, /* Error when operating on a network */
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VIR_FROM_TEST = 12, /* Error from test driver */
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VIR_FROM_REMOTE = 13, /* Error from remote driver */
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VIR_FROM_OPENVZ = 14, /* Error from OpenVZ driver */
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VIR_FROM_XENXM = 15, /* Error at Xen XM layer */
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VIR_FROM_STATS_LINUX = 16, /* Error in the Linux Stats code */
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VIR_FROM_LXC = 17, /* Error from Linux Container driver */
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VIR_FROM_STORAGE = 18, /* Error from storage driver */
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VIR_FROM_NETWORK = 19, /* Error from network config */
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VIR_FROM_DOMAIN = 20, /* Error from domain config */
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VIR_FROM_UML = 21, /* Error at the UML driver; unused since 5.0.0 */
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VIR_FROM_NODEDEV = 22, /* Error from node device monitor */
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VIR_FROM_XEN_INOTIFY = 23, /* Error from xen inotify layer */
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VIR_FROM_SECURITY = 24, /* Error from security framework */
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VIR_FROM_VBOX = 25, /* Error from VirtualBox driver */
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VIR_FROM_INTERFACE = 26, /* Error when operating on an interface */
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VIR_FROM_ONE = 27, /* The OpenNebula driver no longer exists.
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Retained for ABI/API compat only */
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VIR_FROM_ESX = 28, /* Error from ESX driver */
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VIR_FROM_PHYP = 29, /* Error from the phyp driver, unused since 6.0.0 */
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VIR_FROM_SECRET = 30, /* Error from secret storage */
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VIR_FROM_CPU = 31, /* Error from CPU driver */
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VIR_FROM_XENAPI = 32, /* Error from XenAPI */
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VIR_FROM_NWFILTER = 33, /* Error from network filter driver */
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VIR_FROM_HOOK = 34, /* Error from Synchronous hooks */
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VIR_FROM_DOMAIN_SNAPSHOT = 35,/* Error from domain snapshot */
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VIR_FROM_AUDIT = 36, /* Error from auditing subsystem */
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VIR_FROM_SYSINFO = 37, /* Error from sysinfo/SMBIOS */
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VIR_FROM_STREAMS = 38, /* Error from I/O streams */
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VIR_FROM_VMWARE = 39, /* Error from VMware driver */
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VIR_FROM_EVENT = 40, /* Error from event loop impl */
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VIR_FROM_LIBXL = 41, /* Error from libxenlight driver */
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VIR_FROM_LOCKING = 42, /* Error from lock manager */
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VIR_FROM_HYPERV = 43, /* Error from Hyper-V driver */
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VIR_FROM_CAPABILITIES = 44, /* Error from capabilities */
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VIR_FROM_URI = 45, /* Error from URI handling */
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VIR_FROM_AUTH = 46, /* Error from auth handling */
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VIR_FROM_DBUS = 47, /* Error from DBus */
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VIR_FROM_PARALLELS = 48, /* Error from Parallels */
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VIR_FROM_DEVICE = 49, /* Error from Device */
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VIR_FROM_SSH = 50, /* Error from libssh2 connection transport */
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VIR_FROM_LOCKSPACE = 51, /* Error from lockspace */
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VIR_FROM_INITCTL = 52, /* Error from initctl device communication */
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VIR_FROM_IDENTITY = 53, /* Error from identity code */
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VIR_FROM_CGROUP = 54, /* Error from cgroups */
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VIR_FROM_ACCESS = 55, /* Error from access control manager */
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VIR_FROM_SYSTEMD = 56, /* Error from systemd code */
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VIR_FROM_BHYVE = 57, /* Error from bhyve driver */
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VIR_FROM_CRYPTO = 58, /* Error from crypto code */
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VIR_FROM_FIREWALL = 59, /* Error from firewall */
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VIR_FROM_POLKIT = 60, /* Error from polkit code */
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VIR_FROM_THREAD = 61, /* Error from thread utils */
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VIR_FROM_ADMIN = 62, /* Error from admin backend */
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VIR_FROM_LOGGING = 63, /* Error from log manager */
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VIR_FROM_XENXL = 64, /* Error from Xen xl config code */
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VIR_FROM_PERF = 65, /* Error from perf */
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VIR_FROM_LIBSSH = 66, /* Error from libssh connection transport */
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VIR_FROM_RESCTRL = 67, /* Error from resource control */
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VIR_FROM_FIREWALLD = 68, /* Error from firewalld */
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VIR_FROM_DOMAIN_CHECKPOINT = 69, /* Error from domain checkpoint */
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VIR_FROM_TPM = 70, /* Error from TPM */
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VIR_FROM_BPF = 71, /* Error from BPF code */
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# ifdef VIR_ENUM_SENTINELS
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VIR_ERR_DOMAIN_LAST
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# endif
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} virErrorDomain;
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/**
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* virError:
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*
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* A libvirt Error instance.
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*
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* The conn, dom and net fields should be used with extreme care.
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* Reference counts are not incremented so the underlying objects
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* may be deleted without notice after the error has been delivered.
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*/
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typedef struct _virError virError;
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typedef virError *virErrorPtr;
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struct _virError {
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int code; /* The error code, a virErrorNumber */
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int domain; /* What part of the library raised this error */
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char *message;/* human-readable informative error message */
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virErrorLevel level;/* how consequent is the error */
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virConnectPtr conn VIR_DEPRECATED; /* connection if available, deprecated
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see note above */
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virDomainPtr dom VIR_DEPRECATED; /* domain if available, deprecated
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see note above */
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char *str1; /* extra string information */
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char *str2; /* extra string information */
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char *str3; /* extra string information */
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int int1; /* extra number information */
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int int2; /* extra number information */
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virNetworkPtr net VIR_DEPRECATED; /* network if available, deprecated
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see note above */
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};
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/**
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* virErrorNumber:
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*
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* The full list of errors the library can generate
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*
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* This list should remain stable, with all additions placed at the
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* end since libvirt 0.1.0. There is one exception: values added
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* between libvirt 0.7.1 and libvirt 0.7.7 (VIR_WAR_NO_SECRET through
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* VIR_ERR_MIGRATE_PERSIST_FAILED) were inadvertently relocated by
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* four positions in 0.8.0. If you suspect version mismatch between a
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* server and client, then you can decipher values as follows:
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*
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* switch (err.code) {
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* case 60:
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* // no way to tell VIR_WAR_NO_SECRET apart from VIR_WAR_NO_NWFILTER,
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* // but both are very similar warnings
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* break;
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* case 61: case 62: case 63:
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* if (err.domain != VIR_FROM_NWFILTER)
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* err.code += 4;
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* break;
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* case 64:
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* if (err.domain == VIR_FROM_QEMU)
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* err.code += 4;
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* break;
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* case 65:
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* if (err.domain == VIR_FROM_XEN)
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* err.code += 4;
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* break;
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* default:
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* }
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*/
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typedef enum {
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VIR_ERR_OK = 0,
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VIR_ERR_INTERNAL_ERROR = 1, /* internal error */
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VIR_ERR_NO_MEMORY = 2, /* memory allocation failure */
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VIR_ERR_NO_SUPPORT = 3, /* no support for this function */
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VIR_ERR_UNKNOWN_HOST = 4, /* could not resolve hostname */
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VIR_ERR_NO_CONNECT = 5, /* can't connect to hypervisor */
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VIR_ERR_INVALID_CONN = 6, /* invalid connection object */
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VIR_ERR_INVALID_DOMAIN = 7, /* invalid domain object */
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VIR_ERR_INVALID_ARG = 8, /* invalid function argument */
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VIR_ERR_OPERATION_FAILED = 9, /* a command to hypervisor failed */
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VIR_ERR_GET_FAILED = 10, /* a HTTP GET command to failed */
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VIR_ERR_POST_FAILED = 11, /* a HTTP POST command to failed */
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VIR_ERR_HTTP_ERROR = 12, /* unexpected HTTP error code */
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VIR_ERR_SEXPR_SERIAL = 13, /* failure to serialize an S-Expr */
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VIR_ERR_NO_XEN = 14, /* could not open Xen hypervisor
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control */
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VIR_ERR_XEN_CALL = 15, /* failure doing an hypervisor call */
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VIR_ERR_OS_TYPE = 16, /* unknown OS type */
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VIR_ERR_NO_KERNEL = 17, /* missing kernel information */
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VIR_ERR_NO_ROOT = 18, /* missing root device information */
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VIR_ERR_NO_SOURCE = 19, /* missing source device information */
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VIR_ERR_NO_TARGET = 20, /* missing target device information */
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VIR_ERR_NO_NAME = 21, /* missing domain name information */
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VIR_ERR_NO_OS = 22, /* missing domain OS information */
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VIR_ERR_NO_DEVICE = 23, /* missing domain devices information */
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VIR_ERR_NO_XENSTORE = 24, /* could not open Xen Store control */
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VIR_ERR_DRIVER_FULL = 25, /* too many drivers registered */
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VIR_ERR_CALL_FAILED = 26, /* not supported by the drivers
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(DEPRECATED) */
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VIR_ERR_XML_ERROR = 27, /* an XML description is not well
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formed or broken */
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VIR_ERR_DOM_EXIST = 28, /* the domain already exist */
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VIR_ERR_OPERATION_DENIED = 29, /* operation forbidden on read-only
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connections */
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VIR_ERR_OPEN_FAILED = 30, /* failed to open a conf file */
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VIR_ERR_READ_FAILED = 31, /* failed to read a conf file */
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VIR_ERR_PARSE_FAILED = 32, /* failed to parse a conf file */
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VIR_ERR_CONF_SYNTAX = 33, /* failed to parse the syntax of a
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conf file */
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VIR_ERR_WRITE_FAILED = 34, /* failed to write a conf file */
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VIR_ERR_XML_DETAIL = 35, /* detail of an XML error */
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VIR_ERR_INVALID_NETWORK = 36, /* invalid network object */
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VIR_ERR_NETWORK_EXIST = 37, /* the network already exist */
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VIR_ERR_SYSTEM_ERROR = 38, /* general system call failure */
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VIR_ERR_RPC = 39, /* some sort of RPC error */
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VIR_ERR_GNUTLS_ERROR = 40, /* error from a GNUTLS call */
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VIR_WAR_NO_NETWORK = 41, /* failed to start network */
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VIR_ERR_NO_DOMAIN = 42, /* domain not found or unexpectedly
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disappeared */
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VIR_ERR_NO_NETWORK = 43, /* network not found */
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VIR_ERR_INVALID_MAC = 44, /* invalid MAC address */
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VIR_ERR_AUTH_FAILED = 45, /* authentication failed */
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VIR_ERR_INVALID_STORAGE_POOL = 46, /* invalid storage pool object */
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VIR_ERR_INVALID_STORAGE_VOL = 47, /* invalid storage vol object */
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VIR_WAR_NO_STORAGE = 48, /* failed to start storage */
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VIR_ERR_NO_STORAGE_POOL = 49, /* storage pool not found */
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VIR_ERR_NO_STORAGE_VOL = 50, /* storage volume not found */
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VIR_WAR_NO_NODE = 51, /* failed to start node driver */
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VIR_ERR_INVALID_NODE_DEVICE = 52, /* invalid node device object */
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VIR_ERR_NO_NODE_DEVICE = 53, /* node device not found */
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VIR_ERR_NO_SECURITY_MODEL = 54, /* security model not found */
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VIR_ERR_OPERATION_INVALID = 55, /* operation is not applicable at this
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time */
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VIR_WAR_NO_INTERFACE = 56, /* failed to start interface driver */
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VIR_ERR_NO_INTERFACE = 57, /* interface driver not running */
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VIR_ERR_INVALID_INTERFACE = 58, /* invalid interface object */
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VIR_ERR_MULTIPLE_INTERFACES = 59, /* more than one matching interface
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found */
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VIR_WAR_NO_NWFILTER = 60, /* failed to start nwfilter driver */
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VIR_ERR_INVALID_NWFILTER = 61, /* invalid nwfilter object */
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VIR_ERR_NO_NWFILTER = 62, /* nw filter pool not found */
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VIR_ERR_BUILD_FIREWALL = 63, /* nw filter pool not found */
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VIR_WAR_NO_SECRET = 64, /* failed to start secret storage */
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VIR_ERR_INVALID_SECRET = 65, /* invalid secret */
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VIR_ERR_NO_SECRET = 66, /* secret not found */
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VIR_ERR_CONFIG_UNSUPPORTED = 67, /* unsupported configuration
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construct */
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VIR_ERR_OPERATION_TIMEOUT = 68, /* timeout occurred during operation */
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VIR_ERR_MIGRATE_PERSIST_FAILED = 69,/* a migration worked, but making the
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VM persist on the dest host failed */
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VIR_ERR_HOOK_SCRIPT_FAILED = 70, /* a synchronous hook script failed */
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VIR_ERR_INVALID_DOMAIN_SNAPSHOT = 71,/* invalid domain snapshot */
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VIR_ERR_NO_DOMAIN_SNAPSHOT = 72, /* domain snapshot not found */
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VIR_ERR_INVALID_STREAM = 73, /* stream pointer not valid */
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VIR_ERR_ARGUMENT_UNSUPPORTED = 74, /* valid API use but unsupported by
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the given driver */
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VIR_ERR_STORAGE_PROBE_FAILED = 75, /* storage pool probe failed */
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VIR_ERR_STORAGE_POOL_BUILT = 76, /* storage pool already built */
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VIR_ERR_SNAPSHOT_REVERT_RISKY = 77, /* force was not requested for a
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risky domain snapshot revert */
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VIR_ERR_OPERATION_ABORTED = 78, /* operation on a domain was
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canceled/aborted by user */
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VIR_ERR_AUTH_CANCELLED = 79, /* authentication cancelled */
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VIR_ERR_NO_DOMAIN_METADATA = 80, /* The metadata is not present */
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VIR_ERR_MIGRATE_UNSAFE = 81, /* Migration is not safe */
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VIR_ERR_OVERFLOW = 82, /* integer overflow */
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VIR_ERR_BLOCK_COPY_ACTIVE = 83, /* action prevented by block copy job */
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VIR_ERR_OPERATION_UNSUPPORTED = 84, /* The requested operation is not
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supported */
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VIR_ERR_SSH = 85, /* error in ssh transport driver */
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VIR_ERR_AGENT_UNRESPONSIVE = 86, /* guest agent is unresponsive,
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not running or not usable */
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VIR_ERR_RESOURCE_BUSY = 87, /* resource is already in use */
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VIR_ERR_ACCESS_DENIED = 88, /* operation on the object/resource
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was denied */
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VIR_ERR_DBUS_SERVICE = 89, /* error from a dbus service */
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VIR_ERR_STORAGE_VOL_EXIST = 90, /* the storage vol already exists */
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VIR_ERR_CPU_INCOMPATIBLE = 91, /* given CPU is incompatible with host CPU */
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VIR_ERR_XML_INVALID_SCHEMA = 92, /* XML document doesn't validate against schema */
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VIR_ERR_MIGRATE_FINISH_OK = 93, /* Finish API succeeded but it is expected to return NULL */
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VIR_ERR_AUTH_UNAVAILABLE = 94, /* authentication unavailable */
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VIR_ERR_NO_SERVER = 95, /* Server was not found */
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VIR_ERR_NO_CLIENT = 96, /* Client was not found */
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VIR_ERR_AGENT_UNSYNCED = 97, /* guest agent replies with wrong id
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to guest-sync command (DEPRECATED) */
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VIR_ERR_LIBSSH = 98, /* error in libssh transport driver */
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VIR_ERR_DEVICE_MISSING = 99, /* fail to find the desired device */
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VIR_ERR_INVALID_NWFILTER_BINDING = 100, /* invalid nwfilter binding */
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VIR_ERR_NO_NWFILTER_BINDING = 101, /* no nwfilter binding */
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VIR_ERR_INVALID_DOMAIN_CHECKPOINT = 102, /* invalid domain checkpoint */
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VIR_ERR_NO_DOMAIN_CHECKPOINT = 103, /* domain checkpoint not found */
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VIR_ERR_NO_DOMAIN_BACKUP = 104, /* domain backup job id not found */
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VIR_ERR_INVALID_NETWORK_PORT = 105, /* invalid network port object */
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VIR_ERR_NETWORK_PORT_EXIST = 106, /* the network port already exist */
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VIR_ERR_NO_NETWORK_PORT = 107, /* network port not found */
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VIR_ERR_NO_HOSTNAME = 108, /* no domain's hostname found */
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# ifdef VIR_ENUM_SENTINELS
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VIR_ERR_NUMBER_LAST
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# endif
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} virErrorNumber;
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/**
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* virErrorFunc:
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* @userData: user provided data for the error callback
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* @error: the error being raised.
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*
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* Signature of a function to use when there is an error raised by the library.
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*/
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typedef void (*virErrorFunc) (void *userData, virErrorPtr error);
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/*
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* Errors can be handled as asynchronous callbacks or after the routine
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* failed. They can also be handled globally at the library level, or
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* at the connection level (which then has priority).
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*/
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virErrorPtr virGetLastError (void);
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virErrorPtr virSaveLastError (void);
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void virResetLastError (void);
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void virResetError (virErrorPtr err);
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void virFreeError (virErrorPtr err);
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int virGetLastErrorCode (void);
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int virGetLastErrorDomain (void);
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const char * virGetLastErrorMessage (void);
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virErrorPtr virConnGetLastError (virConnectPtr conn);
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void virConnResetLastError (virConnectPtr conn);
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int virCopyLastError (virErrorPtr to);
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void virDefaultErrorFunc (virErrorPtr err);
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void virSetErrorFunc (void *userData,
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virErrorFunc handler);
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void virConnSetErrorFunc (virConnectPtr conn,
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void *userData,
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virErrorFunc handler);
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int virConnCopyLastError (virConnectPtr conn,
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virErrorPtr to);
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# ifdef __cplusplus
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}
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# endif
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#endif /* LIBVIRT_VIRTERROR_H */
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