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https://gitlab.com/libvirt/libvirt.git
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e9a24e3e3d
This patch introduces a new error code VIR_ERR_OPERATION_UNSUPPORTED to mark error messages regarding operations that failed due to lack of support on the hypervisor or other than libvirt issues. The code is first used in reporting error if qemu does not support block IO tuning variables yielding error message: error: Unable to get block I/O throttle parameters error: Operation not supported: block_io_throttle field 'total_bytes_sec' missing in qemu's output instead of: error: Unable to get block I/O throttle parameters error: internal error cannot read total_bytes_sec
322 lines
14 KiB
C
322 lines
14 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, 2010-2012 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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* Author: Daniel Veillard <veillard@redhat.com>
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*/
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#ifndef __VIR_VIRERR_H__
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# define __VIR_VIRERR_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 */
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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 IBM power hypervisor */
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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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# 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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} 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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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 /* __VIR_VIRERR_H__ */
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