/* * remote.c: handlers for RPC method calls * * Copyright (C) 2007-2011 Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Author: Richard W.M. Jones */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "virterror_internal.h" #if HAVE_POLKIT0 # include # include #endif #include "remote.h" #include "dispatch.h" #include "libvirt_internal.h" #include "datatypes.h" #include "memory.h" #include "util.h" #include "stream.h" #include "uuid.h" #include "network.h" #include "libvirt/libvirt-qemu.h" #include "command.h" #include "intprops.h" #define VIR_FROM_THIS VIR_FROM_REMOTE #define virNetError(code, ...) \ virReportErrorHelper(VIR_FROM_THIS, code, __FILE__, \ __FUNCTION__, __LINE__, __VA_ARGS__) #if SIZEOF_LONG < 8 # define HYPER_TO_TYPE(_type, _to, _from) \ do { \ if ((_from) != (_type)(_from)) { \ virNetError(VIR_ERR_INTERNAL_ERROR, \ _("conversion from hyper to %s overflowed"), #_type); \ goto cleanup; \ } \ (_to) = (_from); \ } while (0) # define HYPER_TO_LONG(_to, _from) HYPER_TO_TYPE(long, _to, _from) # define HYPER_TO_ULONG(_to, _from) HYPER_TO_TYPE(unsigned long, _to, _from) #else # define HYPER_TO_LONG(_to, _from) (_to) = (_from) # define HYPER_TO_ULONG(_to, _from) (_to) = (_from) #endif static virDomainPtr get_nonnull_domain(virConnectPtr conn, remote_nonnull_domain domain); static virNetworkPtr get_nonnull_network(virConnectPtr conn, remote_nonnull_network network); static virInterfacePtr get_nonnull_interface(virConnectPtr conn, remote_nonnull_interface iface); static virStoragePoolPtr get_nonnull_storage_pool(virConnectPtr conn, remote_nonnull_storage_pool pool); static virStorageVolPtr get_nonnull_storage_vol(virConnectPtr conn, remote_nonnull_storage_vol vol); static virSecretPtr get_nonnull_secret(virConnectPtr conn, remote_nonnull_secret secret); static virNWFilterPtr get_nonnull_nwfilter(virConnectPtr conn, remote_nonnull_nwfilter nwfilter); static virDomainSnapshotPtr get_nonnull_domain_snapshot(virDomainPtr dom, remote_nonnull_domain_snapshot snapshot); static void make_nonnull_domain(remote_nonnull_domain *dom_dst, virDomainPtr dom_src); static void make_nonnull_network(remote_nonnull_network *net_dst, virNetworkPtr net_src); static void make_nonnull_interface(remote_nonnull_interface *interface_dst, virInterfacePtr interface_src); static void make_nonnull_storage_pool(remote_nonnull_storage_pool *pool_dst, virStoragePoolPtr pool_src); static void make_nonnull_storage_vol(remote_nonnull_storage_vol *vol_dst, virStorageVolPtr vol_src); static void make_nonnull_node_device(remote_nonnull_node_device *dev_dst, virNodeDevicePtr dev_src); static void make_nonnull_secret(remote_nonnull_secret *secret_dst, virSecretPtr secret_src); static void make_nonnull_nwfilter(remote_nonnull_nwfilter *net_dst, virNWFilterPtr nwfilter_src); static void make_nonnull_domain_snapshot(remote_nonnull_domain_snapshot *snapshot_dst, virDomainSnapshotPtr snapshot_src); #include "remote_dispatch_prototypes.h" #include "qemu_dispatch_prototypes.h" static const dispatch_data const dispatch_table[] = { #include "remote_dispatch_table.h" }; static const dispatch_data const qemu_dispatch_table[] = { #include "qemu_dispatch_table.h" }; const dispatch_data const *remoteGetDispatchData(int proc) { if (proc >= ARRAY_CARDINALITY(dispatch_table) || dispatch_table[proc].fn == NULL) { return NULL; } return &(dispatch_table[proc]); } const dispatch_data const *qemuGetDispatchData(int proc) { if (proc >= ARRAY_CARDINALITY(qemu_dispatch_table) || qemu_dispatch_table[proc].fn == NULL) { return NULL; } return &(qemu_dispatch_table[proc]); } /* Prototypes */ static void remoteDispatchDomainEventSend(struct qemud_client *client, int procnr, xdrproc_t proc, void *data); static int remoteRelayDomainEventLifecycle(virConnectPtr conn ATTRIBUTE_UNUSED, virDomainPtr dom, int event, int detail, void *opaque) { struct qemud_client *client = opaque; remote_domain_event_lifecycle_msg data; if (!client) return -1; VIR_DEBUG("Relaying domain lifecycle event %d %d", event, detail); virMutexLock(&client->lock); /* build return data */ memset(&data, 0, sizeof data); make_nonnull_domain(&data.dom, dom); data.event = event; data.detail = detail; remoteDispatchDomainEventSend(client, REMOTE_PROC_DOMAIN_EVENT_LIFECYCLE, (xdrproc_t)xdr_remote_domain_event_lifecycle_msg, &data); virMutexUnlock(&client->lock); return 0; } static int remoteRelayDomainEventReboot(virConnectPtr conn ATTRIBUTE_UNUSED, virDomainPtr dom, void *opaque) { struct qemud_client *client = opaque; remote_domain_event_reboot_msg data; if (!client) return -1; VIR_DEBUG("Relaying domain reboot event %s %d", dom->name, dom->id); virMutexLock(&client->lock); /* build return data */ memset(&data, 0, sizeof data); make_nonnull_domain(&data.dom, dom); remoteDispatchDomainEventSend(client, REMOTE_PROC_DOMAIN_EVENT_REBOOT, (xdrproc_t)xdr_remote_domain_event_reboot_msg, &data); virMutexUnlock(&client->lock); return 0; } static int remoteRelayDomainEventRTCChange(virConnectPtr conn ATTRIBUTE_UNUSED, virDomainPtr dom, long long offset, void *opaque) { struct qemud_client *client = opaque; remote_domain_event_rtc_change_msg data; if (!client) return -1; VIR_DEBUG("Relaying domain rtc change event %s %d %lld", dom->name, dom->id, offset); virMutexLock(&client->lock); /* build return data */ memset(&data, 0, sizeof data); make_nonnull_domain(&data.dom, dom); data.offset = offset; remoteDispatchDomainEventSend(client, REMOTE_PROC_DOMAIN_EVENT_RTC_CHANGE, (xdrproc_t)xdr_remote_domain_event_rtc_change_msg, &data); virMutexUnlock(&client->lock); return 0; } static int remoteRelayDomainEventWatchdog(virConnectPtr conn ATTRIBUTE_UNUSED, virDomainPtr dom, int action, void *opaque) { struct qemud_client *client = opaque; remote_domain_event_watchdog_msg data; if (!client) return -1; VIR_DEBUG("Relaying domain watchdog event %s %d %d", dom->name, dom->id, action); virMutexLock(&client->lock); /* build return data */ memset(&data, 0, sizeof data); make_nonnull_domain(&data.dom, dom); data.action = action; remoteDispatchDomainEventSend(client, REMOTE_PROC_DOMAIN_EVENT_WATCHDOG, (xdrproc_t)xdr_remote_domain_event_watchdog_msg, &data); virMutexUnlock(&client->lock); return 0; } static int remoteRelayDomainEventIOError(virConnectPtr conn ATTRIBUTE_UNUSED, virDomainPtr dom, const char *srcPath, const char *devAlias, int action, void *opaque) { struct qemud_client *client = opaque; remote_domain_event_io_error_msg data; if (!client) return -1; VIR_DEBUG("Relaying domain io error %s %d %s %s %d", dom->name, dom->id, srcPath, devAlias, action); virMutexLock(&client->lock); /* build return data */ memset(&data, 0, sizeof data); make_nonnull_domain(&data.dom, dom); data.srcPath = (char*)srcPath; data.devAlias = (char*)devAlias; data.action = action; remoteDispatchDomainEventSend(client, REMOTE_PROC_DOMAIN_EVENT_IO_ERROR, (xdrproc_t)xdr_remote_domain_event_io_error_msg, &data); virMutexUnlock(&client->lock); return 0; } static int remoteRelayDomainEventIOErrorReason(virConnectPtr conn ATTRIBUTE_UNUSED, virDomainPtr dom, const char *srcPath, const char *devAlias, int action, const char *reason, void *opaque) { struct qemud_client *client = opaque; remote_domain_event_io_error_reason_msg data; if (!client) return -1; VIR_DEBUG("Relaying domain io error %s %d %s %s %d %s", dom->name, dom->id, srcPath, devAlias, action, reason); virMutexLock(&client->lock); /* build return data */ memset(&data, 0, sizeof data); make_nonnull_domain(&data.dom, dom); data.srcPath = (char*)srcPath; data.devAlias = (char*)devAlias; data.action = action; data.reason = (char*)reason; remoteDispatchDomainEventSend(client, REMOTE_PROC_DOMAIN_EVENT_IO_ERROR_REASON, (xdrproc_t)xdr_remote_domain_event_io_error_reason_msg, &data); virMutexUnlock(&client->lock); return 0; } static int remoteRelayDomainEventGraphics(virConnectPtr conn ATTRIBUTE_UNUSED, virDomainPtr dom, int phase, virDomainEventGraphicsAddressPtr local, virDomainEventGraphicsAddressPtr remote, const char *authScheme, virDomainEventGraphicsSubjectPtr subject, void *opaque) { struct qemud_client *client = opaque; remote_domain_event_graphics_msg data; int i; if (!client) return -1; VIR_DEBUG("Relaying domain graphics event %s %d %d - %d %s %s - %d %s %s - %s", dom->name, dom->id, phase, local->family, local->service, local->node, remote->family, remote->service, remote->node, authScheme); VIR_DEBUG("Subject %d", subject->nidentity); for (i = 0 ; i < subject->nidentity ; i++) { VIR_DEBUG(" %s=%s", subject->identities[i].type, subject->identities[i].name); } virMutexLock(&client->lock); /* build return data */ memset(&data, 0, sizeof data); make_nonnull_domain(&data.dom, dom); data.phase = phase; data.authScheme = (char*)authScheme; data.local.family = local->family; data.local.node = (char *)local->node; data.local.service = (char *)local->service; data.remote.family = remote->family; data.remote.node = (char*)remote->node; data.remote.service = (char*)remote->service; data.subject.subject_len = subject->nidentity; if (VIR_ALLOC_N(data.subject.subject_val, data.subject.subject_len) < 0) { VIR_WARN("cannot allocate memory for graphics event subject"); return -1; } for (i = 0 ; i < data.subject.subject_len ; i++) { data.subject.subject_val[i].type = (char*)subject->identities[i].type; data.subject.subject_val[i].name = (char*)subject->identities[i].name; } remoteDispatchDomainEventSend(client, REMOTE_PROC_DOMAIN_EVENT_GRAPHICS, (xdrproc_t)xdr_remote_domain_event_graphics_msg, &data); VIR_FREE(data.subject.subject_val); virMutexUnlock(&client->lock); return 0; } static int remoteRelayDomainEventControlError(virConnectPtr conn ATTRIBUTE_UNUSED, virDomainPtr dom, void *opaque) { struct qemud_client *client = opaque; remote_domain_event_control_error_msg data; if (!client) return -1; VIR_DEBUG("Relaying domain control error %s %d", dom->name, dom->id); virMutexLock(&client->lock); /* build return data */ memset(&data, 0, sizeof data); make_nonnull_domain(&data.dom, dom); remoteDispatchDomainEventSend(client, REMOTE_PROC_DOMAIN_EVENT_CONTROL_ERROR, (xdrproc_t)xdr_remote_domain_event_control_error_msg, &data); virMutexUnlock(&client->lock); return 0; } static virConnectDomainEventGenericCallback domainEventCallbacks[] = { VIR_DOMAIN_EVENT_CALLBACK(remoteRelayDomainEventLifecycle), VIR_DOMAIN_EVENT_CALLBACK(remoteRelayDomainEventReboot), VIR_DOMAIN_EVENT_CALLBACK(remoteRelayDomainEventRTCChange), VIR_DOMAIN_EVENT_CALLBACK(remoteRelayDomainEventWatchdog), VIR_DOMAIN_EVENT_CALLBACK(remoteRelayDomainEventIOError), VIR_DOMAIN_EVENT_CALLBACK(remoteRelayDomainEventGraphics), VIR_DOMAIN_EVENT_CALLBACK(remoteRelayDomainEventIOErrorReason), VIR_DOMAIN_EVENT_CALLBACK(remoteRelayDomainEventControlError), }; verify(ARRAY_CARDINALITY(domainEventCallbacks) == VIR_DOMAIN_EVENT_ID_LAST); /*----- Functions. -----*/ static int remoteDispatchOpen(struct qemud_server *server, struct qemud_client *client, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, struct remote_open_args *args, void *ret ATTRIBUTE_UNUSED) { const char *name; int flags; int rv = -1; virMutexLock(&server->lock); virMutexLock(&client->lock); virMutexUnlock(&server->lock); if (conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection already open")); goto cleanup; } name = args->name ? *args->name : NULL; /* If this connection arrived on a readonly socket, force * the connection to be readonly. */ flags = args->flags; if (client->readonly) flags |= VIR_CONNECT_RO; client->conn = flags & VIR_CONNECT_RO ? virConnectOpenReadOnly(name) : virConnectOpen(name); if (client->conn == NULL) goto cleanup; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); virMutexUnlock(&client->lock); return rv; } static int remoteDispatchClose(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn ATTRIBUTE_UNUSED, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr ATTRIBUTE_UNUSED, void *args ATTRIBUTE_UNUSED, void *ret ATTRIBUTE_UNUSED) { virMutexLock(&server->lock); virMutexLock(&client->lock); virMutexUnlock(&server->lock); client->closing = 1; virMutexUnlock(&client->lock); return 0; } static int remoteDispatchDomainGetSchedulerType(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_get_scheduler_type_args *args, remote_domain_get_scheduler_type_ret *ret) { virDomainPtr dom = NULL; char *type; int nparams; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; if (!(type = virDomainGetSchedulerType(dom, &nparams))) goto cleanup; ret->type = type; ret->nparams = nparams; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); if (dom) virDomainFree(dom); return rv; } /* Helper to serialize typed parameters. */ static int remoteSerializeTypedParameters(virTypedParameterPtr params, int nparams, remote_typed_param **ret_params_val, u_int *ret_params_len) { int i; int rv = -1; remote_typed_param *val; *ret_params_len = nparams; if (VIR_ALLOC_N(val, nparams) < 0) { virReportOOMError(); goto cleanup; } for (i = 0; i < nparams; ++i) { /* remoteDispatchClientRequest will free this: */ val[i].field = strdup (params[i].field); if (val[i].field == NULL) { virReportOOMError(); goto cleanup; } val[i].value.type = params[i].type; switch (params[i].type) { case VIR_TYPED_PARAM_INT: val[i].value.remote_typed_param_value_u.i = params[i].value.i; break; case VIR_TYPED_PARAM_UINT: val[i].value.remote_typed_param_value_u.ui = params[i].value.ui; break; case VIR_TYPED_PARAM_LLONG: val[i].value.remote_typed_param_value_u.l = params[i].value.l; break; case VIR_TYPED_PARAM_ULLONG: val[i].value.remote_typed_param_value_u.ul = params[i].value.ul; break; case VIR_TYPED_PARAM_DOUBLE: val[i].value.remote_typed_param_value_u.d = params[i].value.d; break; case VIR_TYPED_PARAM_BOOLEAN: val[i].value.remote_typed_param_value_u.b = params[i].value.b; break; default: virNetError(VIR_ERR_RPC, _("unknown parameter type: %d"), params[i].type); goto cleanup; } } *ret_params_val = val; val = NULL; rv = 0; cleanup: if (val) { for (i = 0; i < nparams; i++) VIR_FREE(val[i].field); VIR_FREE(val); } return rv; } /* Helper to deserialize typed parameters. */ static virTypedParameterPtr remoteDeserializeTypedParameters(remote_typed_param *args_params_val, u_int args_params_len, int limit, int *nparams) { int i; int rv = -1; virTypedParameterPtr params = NULL; /* Check the length of the returned list carefully. */ if (args_params_len > limit) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("nparams too large")); goto cleanup; } if (VIR_ALLOC_N(params, args_params_len) < 0) { virReportOOMError(); goto cleanup; } *nparams = args_params_len; /* Deserialise the result. */ for (i = 0; i < args_params_len; ++i) { if (virStrcpyStatic(params[i].field, args_params_val[i].field) == NULL) { virNetError(VIR_ERR_INTERNAL_ERROR, _("Parameter %s too big for destination"), args_params_val[i].field); goto cleanup; } params[i].type = args_params_val[i].value.type; switch (params[i].type) { case VIR_TYPED_PARAM_INT: params[i].value.i = args_params_val[i].value.remote_typed_param_value_u.i; break; case VIR_TYPED_PARAM_UINT: params[i].value.ui = args_params_val[i].value.remote_typed_param_value_u.ui; break; case VIR_TYPED_PARAM_LLONG: params[i].value.l = args_params_val[i].value.remote_typed_param_value_u.l; break; case VIR_TYPED_PARAM_ULLONG: params[i].value.ul = args_params_val[i].value.remote_typed_param_value_u.ul; break; case VIR_TYPED_PARAM_DOUBLE: params[i].value.d = args_params_val[i].value.remote_typed_param_value_u.d; break; case VIR_TYPED_PARAM_BOOLEAN: params[i].value.b = args_params_val[i].value.remote_typed_param_value_u.b; break; default: virNetError(VIR_ERR_INTERNAL_ERROR, _("unknown parameter type: %d"), params[i].type); goto cleanup; } } rv = 0; cleanup: if (rv < 0) VIR_FREE(params); return params; } static int remoteDispatchDomainGetSchedulerParameters(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_get_scheduler_parameters_args *args, remote_domain_get_scheduler_parameters_ret *ret) { virDomainPtr dom = NULL; virTypedParameterPtr params = NULL; int nparams = args->nparams; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (nparams > REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("nparams too large")); goto cleanup; } if (VIR_ALLOC_N(params, nparams) < 0) goto no_memory; if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; if (virDomainGetSchedulerParameters(dom, params, &nparams) < 0) goto cleanup; if (remoteSerializeTypedParameters(params, nparams, &ret->params.params_val, &ret->params.params_len) < 0) goto cleanup; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); if (dom) virDomainFree(dom); VIR_FREE(params); return rv; no_memory: virReportOOMError(); goto cleanup; } static int remoteDispatchDomainGetSchedulerParametersFlags(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_get_scheduler_parameters_flags_args *args, remote_domain_get_scheduler_parameters_flags_ret *ret) { virDomainPtr dom = NULL; virTypedParameterPtr params = NULL; int nparams = args->nparams; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (nparams > REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("nparams too large")); goto cleanup; } if (VIR_ALLOC_N(params, nparams) < 0) goto no_memory; if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; if (virDomainGetSchedulerParametersFlags(dom, params, &nparams, args->flags) < 0) goto cleanup; if (remoteSerializeTypedParameters(params, nparams, &ret->params.params_val, &ret->params.params_len) < 0) goto cleanup; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); if (dom) virDomainFree(dom); VIR_FREE(params); return rv; no_memory: virReportOOMError(); goto cleanup; } static int remoteDispatchDomainMemoryStats(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_memory_stats_args *args, remote_domain_memory_stats_ret *ret) { virDomainPtr dom = NULL; struct _virDomainMemoryStat *stats; int nr_stats, i; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (args->maxStats > REMOTE_DOMAIN_MEMORY_STATS_MAX) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("maxStats > REMOTE_DOMAIN_MEMORY_STATS_MAX")); goto cleanup; } if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; /* Allocate stats array for making dispatch call */ if (VIR_ALLOC_N(stats, args->maxStats) < 0) { virReportOOMError(); goto cleanup; } nr_stats = virDomainMemoryStats(dom, stats, args->maxStats, 0); if (nr_stats < 0) goto cleanup; /* Allocate return buffer */ if (VIR_ALLOC_N(ret->stats.stats_val, args->maxStats) < 0) { virReportOOMError(); goto cleanup; } /* Copy the stats into the xdr return structure */ for (i = 0; i < nr_stats; i++) { ret->stats.stats_val[i].tag = stats[i].tag; ret->stats.stats_val[i].val = stats[i].val; } ret->stats.stats_len = nr_stats; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); if (dom) virDomainFree(dom); VIR_FREE(stats); return rv; } static int remoteDispatchDomainBlockPeek(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_block_peek_args *args, remote_domain_block_peek_ret *ret) { virDomainPtr dom = NULL; char *path; unsigned long long offset; size_t size; unsigned int flags; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; path = args->path; offset = args->offset; size = args->size; flags = args->flags; if (size > REMOTE_DOMAIN_BLOCK_PEEK_BUFFER_MAX) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("size > maximum buffer size")); goto cleanup; } ret->buffer.buffer_len = size; if (VIR_ALLOC_N(ret->buffer.buffer_val, size) < 0) { virReportOOMError(); goto cleanup; } if (virDomainBlockPeek(dom, path, offset, size, ret->buffer.buffer_val, flags) < 0) goto cleanup; rv = 0; cleanup: if (rv < 0) { remoteDispatchError(rerr); VIR_FREE(ret->buffer.buffer_val); } if (dom) virDomainFree(dom); return rv; } static int remoteDispatchDomainMemoryPeek(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_memory_peek_args *args, remote_domain_memory_peek_ret *ret) { virDomainPtr dom = NULL; unsigned long long offset; size_t size; unsigned int flags; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; offset = args->offset; size = args->size; flags = args->flags; if (size > REMOTE_DOMAIN_MEMORY_PEEK_BUFFER_MAX) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("size > maximum buffer size")); goto cleanup; } ret->buffer.buffer_len = size; if (VIR_ALLOC_N(ret->buffer.buffer_val, size) < 0) { virReportOOMError(); goto cleanup; } if (virDomainMemoryPeek(dom, offset, size, ret->buffer.buffer_val, flags) < 0) goto cleanup; rv = 0; cleanup: if (rv < 0) { remoteDispatchError(rerr); VIR_FREE(ret->buffer.buffer_val); } if (dom) virDomainFree(dom); return rv; } static int remoteDispatchDomainGetSecurityLabel(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_get_security_label_args *args, remote_domain_get_security_label_ret *ret) { virDomainPtr dom = NULL; virSecurityLabelPtr seclabel = NULL; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; if (VIR_ALLOC(seclabel) < 0) { virReportOOMError(); goto cleanup; } if (virDomainGetSecurityLabel(dom, seclabel) < 0) goto cleanup; ret->label.label_len = strlen(seclabel->label) + 1; if (VIR_ALLOC_N(ret->label.label_val, ret->label.label_len) < 0) { virReportOOMError(); goto cleanup; } strcpy(ret->label.label_val, seclabel->label); ret->enforcing = seclabel->enforcing; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); if (dom) virDomainFree(dom); VIR_FREE(seclabel); return rv; } static int remoteDispatchNodeGetSecurityModel(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_node_get_security_model_ret *ret) { virSecurityModel secmodel; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } memset(&secmodel, 0, sizeof secmodel); if (virNodeGetSecurityModel(conn, &secmodel) < 0) goto cleanup; ret->model.model_len = strlen(secmodel.model) + 1; if (VIR_ALLOC_N(ret->model.model_val, ret->model.model_len) < 0) { virReportOOMError(); goto cleanup; } strcpy(ret->model.model_val, secmodel.model); ret->doi.doi_len = strlen(secmodel.doi) + 1; if (VIR_ALLOC_N(ret->doi.doi_val, ret->doi.doi_len) < 0) { virReportOOMError(); goto cleanup; } strcpy(ret->doi.doi_val, secmodel.doi); rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); return rv; } static int remoteDispatchDomainGetVcpuPinInfo(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_get_vcpu_pin_info_args *args, remote_domain_get_vcpu_pin_info_ret *ret) { virDomainPtr dom = NULL; unsigned char *cpumaps = NULL; int num; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; if (args->ncpumaps > REMOTE_VCPUINFO_MAX) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("ncpumaps > REMOTE_VCPUINFO_MAX")); goto cleanup; } if (INT_MULTIPLY_OVERFLOW(args->ncpumaps, args->maplen) || args->ncpumaps * args->maplen > REMOTE_CPUMAPS_MAX) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("maxinfo * maplen > REMOTE_CPUMAPS_MAX")); goto cleanup; } /* Allocate buffers to take the results. */ if (args->maplen > 0 && VIR_ALLOC_N(cpumaps, args->ncpumaps * args->maplen) < 0) goto no_memory; if ((num = virDomainGetVcpuPinInfo(dom, args->ncpumaps, cpumaps, args->maplen, args->flags)) < 0) goto cleanup; ret->num = num; /* Don't need to allocate/copy the cpumaps if we make the reasonable * assumption that unsigned char and char are the same size. * Note that remoteDispatchClientRequest will free. */ ret->cpumaps.cpumaps_len = args->ncpumaps * args->maplen; ret->cpumaps.cpumaps_val = (char *) cpumaps; cpumaps = NULL; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); VIR_FREE(cpumaps); if (dom) virDomainFree(dom); return rv; no_memory: virReportOOMError(); goto cleanup; } static int remoteDispatchDomainGetVcpus(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_get_vcpus_args *args, remote_domain_get_vcpus_ret *ret) { virDomainPtr dom = NULL; virVcpuInfoPtr info = NULL; unsigned char *cpumaps = NULL; int info_len, i; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; if (args->maxinfo > REMOTE_VCPUINFO_MAX) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("maxinfo > REMOTE_VCPUINFO_MAX")); goto cleanup; } if (INT_MULTIPLY_OVERFLOW(args->maxinfo, args->maplen) || args->maxinfo * args->maplen > REMOTE_CPUMAPS_MAX) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("maxinfo * maplen > REMOTE_CPUMAPS_MAX")); goto cleanup; } /* Allocate buffers to take the results. */ if (VIR_ALLOC_N(info, args->maxinfo) < 0) goto no_memory; if (args->maplen > 0 && VIR_ALLOC_N(cpumaps, args->maxinfo * args->maplen) < 0) goto no_memory; if ((info_len = virDomainGetVcpus(dom, info, args->maxinfo, cpumaps, args->maplen)) < 0) goto cleanup; /* Allocate the return buffer for info. */ ret->info.info_len = info_len; if (VIR_ALLOC_N(ret->info.info_val, info_len) < 0) goto no_memory; for (i = 0; i < info_len; ++i) { ret->info.info_val[i].number = info[i].number; ret->info.info_val[i].state = info[i].state; ret->info.info_val[i].cpu_time = info[i].cpuTime; ret->info.info_val[i].cpu = info[i].cpu; } /* Don't need to allocate/copy the cpumaps if we make the reasonable * assumption that unsigned char and char are the same size. * Note that remoteDispatchClientRequest will free. */ ret->cpumaps.cpumaps_len = args->maxinfo * args->maplen; ret->cpumaps.cpumaps_val = (char *) cpumaps; cpumaps = NULL; rv = 0; cleanup: if (rv < 0) { remoteDispatchError(rerr); VIR_FREE(ret->info.info_val); } VIR_FREE(cpumaps); VIR_FREE(info); if (dom) virDomainFree(dom); return rv; no_memory: virReportOOMError(); goto cleanup; } static int remoteDispatchDomainMigratePrepare(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_migrate_prepare_args *args, remote_domain_migrate_prepare_ret *ret) { char *cookie = NULL; int cookielen = 0; char *uri_in; char **uri_out; char *dname; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } uri_in = args->uri_in == NULL ? NULL : *args->uri_in; dname = args->dname == NULL ? NULL : *args->dname; /* Wacky world of XDR ... */ if (VIR_ALLOC(uri_out) < 0) { virReportOOMError(); goto cleanup; } if (virDomainMigratePrepare(conn, &cookie, &cookielen, uri_in, uri_out, args->flags, dname, args->resource) < 0) goto cleanup; /* remoteDispatchClientRequest will free cookie, uri_out and * the string if there is one. */ ret->cookie.cookie_len = cookielen; ret->cookie.cookie_val = cookie; if (*uri_out == NULL) { ret->uri_out = NULL; } else { ret->uri_out = uri_out; uri_out = NULL; } rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); VIR_FREE(uri_out); return rv; } static int remoteDispatchDomainMigratePrepare2(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_migrate_prepare2_args *args, remote_domain_migrate_prepare2_ret *ret) { char *cookie = NULL; int cookielen = 0; char *uri_in; char **uri_out; char *dname; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } uri_in = args->uri_in == NULL ? NULL : *args->uri_in; dname = args->dname == NULL ? NULL : *args->dname; /* Wacky world of XDR ... */ if (VIR_ALLOC(uri_out) < 0) { virReportOOMError(); goto cleanup; } if (virDomainMigratePrepare2(conn, &cookie, &cookielen, uri_in, uri_out, args->flags, dname, args->resource, args->dom_xml) < 0) goto cleanup; /* remoteDispatchClientRequest will free cookie, uri_out and * the string if there is one. */ ret->cookie.cookie_len = cookielen; ret->cookie.cookie_val = cookie; ret->uri_out = *uri_out == NULL ? NULL : uri_out; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); return rv; } static int remoteDispatchDomainGetMemoryParameters(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header * hdr ATTRIBUTE_UNUSED, remote_error * rerr, remote_domain_get_memory_parameters_args * args, remote_domain_get_memory_parameters_ret * ret) { virDomainPtr dom = NULL; virTypedParameterPtr params = NULL; int nparams = args->nparams; unsigned int flags; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } flags = args->flags; if (nparams > REMOTE_DOMAIN_MEMORY_PARAMETERS_MAX) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("nparams too large")); goto cleanup; } if (VIR_ALLOC_N(params, nparams) < 0) { virReportOOMError(); goto cleanup; } if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; if (virDomainGetMemoryParameters(dom, params, &nparams, flags) < 0) goto cleanup; /* In this case, we need to send back the number of parameters * supported */ if (args->nparams == 0) { ret->nparams = nparams; goto success; } if (remoteSerializeTypedParameters(params, nparams, &ret->params.params_val, &ret->params.params_len) < 0) goto cleanup; success: rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); if (dom) virDomainFree(dom); VIR_FREE(params); return rv; } static int remoteDispatchDomainGetBlkioParameters(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header * hdr ATTRIBUTE_UNUSED, remote_error * rerr, remote_domain_get_blkio_parameters_args * args, remote_domain_get_blkio_parameters_ret * ret) { virDomainPtr dom = NULL; virTypedParameterPtr params = NULL; int nparams = args->nparams; unsigned int flags; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } flags = args->flags; if (nparams > REMOTE_DOMAIN_BLKIO_PARAMETERS_MAX) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("nparams too large")); goto cleanup; } if (VIR_ALLOC_N(params, nparams) < 0) { virReportOOMError(); goto cleanup; } if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; if (virDomainGetBlkioParameters(dom, params, &nparams, flags) < 0) goto cleanup; /* In this case, we need to send back the number of parameters * supported */ if (args->nparams == 0) { ret->nparams = nparams; goto success; } if (remoteSerializeTypedParameters(params, nparams, &ret->params.params_val, &ret->params.params_len) < 0) goto cleanup; success: rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); VIR_FREE(params); if (dom) virDomainFree(dom); return rv; } static int remoteDispatchNodeGetCPUStats (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_node_get_cpu_stats_args *args, remote_node_get_cpu_stats_ret *ret) { virCPUStatsPtr params = NULL; int i; int cpuNum = args->cpuNum; int nparams = args->nparams; unsigned int flags; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } flags = args->flags; if (nparams > REMOTE_NODE_CPU_STATS_MAX) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("nparams too large")); goto cleanup; } if (VIR_ALLOC_N(params, nparams) < 0) { virReportOOMError(); goto cleanup; } if (virNodeGetCPUStats(conn, cpuNum, params, &nparams, flags) < 0) goto cleanup; /* In this case, we need to send back the number of stats * supported */ if (args->nparams == 0) { ret->nparams = nparams; goto success; } /* Serialise the memory parameters. */ ret->params.params_len = nparams; if (VIR_ALLOC_N(ret->params.params_val, nparams) < 0) goto no_memory; for (i = 0; i < nparams; ++i) { /* remoteDispatchClientRequest will free this: */ ret->params.params_val[i].field = strdup(params[i].field); if (ret->params.params_val[i].field == NULL) goto no_memory; ret->params.params_val[i].value = params[i].value; } success: rv = 0; cleanup: if (rv < 0) { remoteDispatchError(rerr); if (ret->params.params_val) { for (i = 0; i < nparams; i++) VIR_FREE(ret->params.params_val[i].field); VIR_FREE(ret->params.params_val); } } VIR_FREE(params); return rv; no_memory: virReportOOMError(); goto cleanup; } static int remoteDispatchNodeGetMemoryStats (struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_node_get_memory_stats_args *args, remote_node_get_memory_stats_ret *ret) { virMemoryStatsPtr params = NULL; int i; int cellNum = args->cellNum; int nparams = args->nparams; unsigned int flags; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } flags = args->flags; if (nparams > REMOTE_NODE_MEMORY_STATS_MAX) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("nparams too large")); goto cleanup; } if (VIR_ALLOC_N(params, nparams) < 0) { virReportOOMError(); goto cleanup; } if (virNodeGetMemoryStats(conn, cellNum, params, &nparams, flags) < 0) goto cleanup; /* In this case, we need to send back the number of parameters * supported */ if (args->nparams == 0) { ret->nparams = nparams; goto success; } /* Serialise the memory parameters. */ ret->params.params_len = nparams; if (VIR_ALLOC_N(ret->params.params_val, nparams) < 0) goto no_memory; for (i = 0; i < nparams; ++i) { /* remoteDispatchClientRequest will free this: */ ret->params.params_val[i].field = strdup(params[i].field); if (ret->params.params_val[i].field == NULL) goto no_memory; ret->params.params_val[i].value = params[i].value; } success: rv = 0; cleanup: if (rv < 0) { remoteDispatchError(rerr); if (ret->params.params_val) { for (i = 0; i < nparams; i++) VIR_FREE(ret->params.params_val[i].field); VIR_FREE(ret->params.params_val); } } VIR_FREE(params); return rv; no_memory: virReportOOMError(); goto cleanup; } /*-------------------------------------------------------------*/ static int remoteDispatchAuthList(struct qemud_server *server, struct qemud_client *client, virConnectPtr conn ATTRIBUTE_UNUSED, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_auth_list_ret *ret) { int rv = -1; ret->types.types_len = 1; if (VIR_ALLOC_N(ret->types.types_val, ret->types.types_len) < 0) { virReportOOMError(); goto cleanup; } virMutexLock(&server->lock); virMutexLock(&client->lock); virMutexUnlock(&server->lock); ret->types.types_val[0] = client->auth; virMutexUnlock(&client->lock); rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); return rv; } #if HAVE_SASL /* * Initializes the SASL session in prepare for authentication * and gives the client a list of allowed mechanisms to choose * * XXX callbacks for stuff like password verification ? */ static int remoteDispatchAuthSaslInit(struct qemud_server *server, struct qemud_client *client, virConnectPtr conn ATTRIBUTE_UNUSED, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_auth_sasl_init_ret *ret) { const char *mechlist = NULL; sasl_security_properties_t secprops; int err; virSocketAddr sa; char *localAddr, *remoteAddr; virMutexLock(&server->lock); virMutexLock(&client->lock); virMutexUnlock(&server->lock); VIR_DEBUG("Initialize SASL auth %d", client->fd); if (client->auth != REMOTE_AUTH_SASL || client->saslconn != NULL) { VIR_ERROR(_("client tried invalid SASL init request")); goto authfail; } /* Get local address in form IPADDR:PORT */ sa.len = sizeof(sa.data.stor); if (getsockname(client->fd, &sa.data.sa, &sa.len) < 0) { char ebuf[1024]; virNetError(VIR_ERR_INTERNAL_ERROR, _("failed to get sock address: %s"), virStrerror(errno, ebuf, sizeof ebuf)); goto error; } if ((localAddr = virSocketFormatAddrFull(&sa, true, ";")) == NULL) goto error; /* Get remote address in form IPADDR:PORT */ sa.len = sizeof(sa.data.stor); if (getpeername(client->fd, &sa.data.sa, &sa.len) < 0) { char ebuf[1024]; virNetError(VIR_ERR_INTERNAL_ERROR, _("failed to get peer address: %s"), virStrerror(errno, ebuf, sizeof ebuf)); VIR_FREE(localAddr); goto error; } if ((remoteAddr = virSocketFormatAddrFull(&sa, true, ";")) == NULL) { VIR_FREE(localAddr); goto error; } err = sasl_server_new("libvirt", NULL, /* FQDN - just delegates to gethostname */ NULL, /* User realm */ localAddr, remoteAddr, NULL, /* XXX Callbacks */ SASL_SUCCESS_DATA, &client->saslconn); VIR_FREE(localAddr); VIR_FREE(remoteAddr); if (err != SASL_OK) { VIR_ERROR(_("sasl context setup failed %d (%s)"), err, sasl_errstring(err, NULL, NULL)); client->saslconn = NULL; goto authfail; } /* Inform SASL that we've got an external SSF layer from TLS */ if (client->type == QEMUD_SOCK_TYPE_TLS) { gnutls_cipher_algorithm_t cipher; sasl_ssf_t ssf; cipher = gnutls_cipher_get(client->tlssession); if (!(ssf = (sasl_ssf_t)gnutls_cipher_get_key_size(cipher))) { VIR_ERROR(_("cannot get TLS cipher size")); sasl_dispose(&client->saslconn); client->saslconn = NULL; goto authfail; } ssf *= 8; /* tls key size is bytes, sasl wants bits */ err = sasl_setprop(client->saslconn, SASL_SSF_EXTERNAL, &ssf); if (err != SASL_OK) { VIR_ERROR(_("cannot set SASL external SSF %d (%s)"), err, sasl_errstring(err, NULL, NULL)); sasl_dispose(&client->saslconn); client->saslconn = NULL; goto authfail; } } memset(&secprops, 0, sizeof secprops); if (client->type == QEMUD_SOCK_TYPE_TLS || client->type == QEMUD_SOCK_TYPE_UNIX) { /* If we've got TLS or UNIX domain sock, we don't care about SSF */ secprops.min_ssf = 0; secprops.max_ssf = 0; secprops.maxbufsize = 8192; secprops.security_flags = 0; } else { /* Plain TCP, better get an SSF layer */ secprops.min_ssf = 56; /* Good enough to require kerberos */ secprops.max_ssf = 100000; /* Arbitrary big number */ secprops.maxbufsize = 8192; /* Forbid any anonymous or trivially crackable auth */ secprops.security_flags = SASL_SEC_NOANONYMOUS | SASL_SEC_NOPLAINTEXT; } err = sasl_setprop(client->saslconn, SASL_SEC_PROPS, &secprops); if (err != SASL_OK) { VIR_ERROR(_("cannot set SASL security props %d (%s)"), err, sasl_errstring(err, NULL, NULL)); sasl_dispose(&client->saslconn); client->saslconn = NULL; goto authfail; } err = sasl_listmech(client->saslconn, NULL, /* Don't need to set user */ "", /* Prefix */ ",", /* Separator */ "", /* Suffix */ &mechlist, NULL, NULL); if (err != SASL_OK) { VIR_ERROR(_("cannot list SASL mechanisms %d (%s)"), err, sasl_errdetail(client->saslconn)); sasl_dispose(&client->saslconn); client->saslconn = NULL; goto authfail; } VIR_DEBUG("Available mechanisms for client: '%s'", mechlist); ret->mechlist = strdup(mechlist); if (!ret->mechlist) { VIR_ERROR(_("cannot allocate mechlist")); sasl_dispose(&client->saslconn); client->saslconn = NULL; goto authfail; } virMutexUnlock(&client->lock); return 0; authfail: remoteDispatchAuthError(rerr); error: PROBE(CLIENT_AUTH_FAIL, "fd=%d, auth=%d", client->fd, REMOTE_AUTH_SASL); virMutexUnlock(&client->lock); return -1; } /* We asked for an SSF layer, so sanity check that we actually * got what we asked for * Returns 0 if ok, -1 on error, -2 if rejected */ static int remoteSASLCheckSSF(struct qemud_client *client, remote_error *rerr) { const void *val; int err, ssf; if (client->type == QEMUD_SOCK_TYPE_TLS || client->type == QEMUD_SOCK_TYPE_UNIX) return 0; /* TLS or UNIX domain sockets trivially OK */ err = sasl_getprop(client->saslconn, SASL_SSF, &val); if (err != SASL_OK) { VIR_ERROR(_("cannot query SASL ssf on connection %d (%s)"), err, sasl_errstring(err, NULL, NULL)); remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; return -1; } ssf = *(const int *)val; VIR_DEBUG("negotiated an SSF of %d", ssf); if (ssf < 56) { /* 56 is good for Kerberos */ VIR_ERROR(_("negotiated SSF %d was not strong enough"), ssf); remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; return -2; } /* Only setup for read initially, because we're about to send an RPC * reply which must be in plain text. When the next incoming RPC * arrives, we'll switch on writes too * * cf qemudClientReadSASL in qemud.c */ client->saslSSF = QEMUD_SASL_SSF_READ; /* We have a SSF !*/ return 0; } /* * Returns 0 if ok, -1 on error, -2 if rejected */ static int remoteSASLCheckAccess(struct qemud_server *server, struct qemud_client *client, remote_error *rerr) { const void *val; int err; char **wildcards; err = sasl_getprop(client->saslconn, SASL_USERNAME, &val); if (err != SASL_OK) { VIR_ERROR(_("cannot query SASL username on connection %d (%s)"), err, sasl_errstring(err, NULL, NULL)); remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; return -1; } if (val == NULL) { VIR_ERROR(_("no client username was found")); remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; return -1; } VIR_DEBUG("SASL client username %s", (const char *)val); client->saslUsername = strdup((const char*)val); if (client->saslUsername == NULL) { VIR_ERROR(_("out of memory copying username")); remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; return -1; } /* If the list is not set, allow any DN. */ wildcards = server->saslUsernameWhitelist; if (!wildcards) return 0; /* No ACL, allow all */ while (*wildcards) { if (fnmatch(*wildcards, client->saslUsername, 0) == 0) return 0; /* Allowed */ wildcards++; } /* Denied */ VIR_ERROR(_("SASL client %s not allowed in whitelist"), client->saslUsername); remoteDispatchAuthError(rerr); sasl_dispose(&client->saslconn); client->saslconn = NULL; return -2; } /* * This starts the SASL authentication negotiation. */ static int remoteDispatchAuthSaslStart(struct qemud_server *server, struct qemud_client *client, virConnectPtr conn ATTRIBUTE_UNUSED, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_auth_sasl_start_args *args, remote_auth_sasl_start_ret *ret) { const char *serverout; unsigned int serveroutlen; int err; virMutexLock(&server->lock); virMutexLock(&client->lock); virMutexUnlock(&server->lock); VIR_DEBUG("Start SASL auth %d", client->fd); if (client->auth != REMOTE_AUTH_SASL || client->saslconn == NULL) { VIR_ERROR(_("client tried invalid SASL start request")); goto authfail; } VIR_DEBUG("Using SASL mechanism %s. Data %d bytes, nil: %d", args->mech, args->data.data_len, args->nil); err = sasl_server_start(client->saslconn, args->mech, /* NB, distinction of NULL vs "" is *critical* in SASL */ args->nil ? NULL : args->data.data_val, args->data.data_len, &serverout, &serveroutlen); if (err != SASL_OK && err != SASL_CONTINUE) { VIR_ERROR(_("sasl start failed %d (%s)"), err, sasl_errdetail(client->saslconn)); sasl_dispose(&client->saslconn); client->saslconn = NULL; goto authfail; } if (serveroutlen > REMOTE_AUTH_SASL_DATA_MAX) { VIR_ERROR(_("sasl start reply data too long %d"), serveroutlen); sasl_dispose(&client->saslconn); client->saslconn = NULL; goto authfail; } /* NB, distinction of NULL vs "" is *critical* in SASL */ if (serverout) { if (VIR_ALLOC_N(ret->data.data_val, serveroutlen) < 0) { virReportOOMError(); remoteDispatchError(rerr); goto error; } memcpy(ret->data.data_val, serverout, serveroutlen); } else { ret->data.data_val = NULL; } ret->nil = serverout ? 0 : 1; ret->data.data_len = serveroutlen; VIR_DEBUG("SASL return data %d bytes, nil; %d", ret->data.data_len, ret->nil); if (err == SASL_CONTINUE) { ret->complete = 0; } else { /* Check username whitelist ACL */ if ((err = remoteSASLCheckAccess(server, client, rerr)) < 0 || (err = remoteSASLCheckSSF(client, rerr)) < 0) { if (err == -2) goto authdeny; else goto authfail; } VIR_DEBUG("Authentication successful %d", client->fd); PROBE(CLIENT_AUTH_ALLOW, "fd=%d, auth=%d, username=%s", client->fd, REMOTE_AUTH_SASL, client->saslUsername); ret->complete = 1; client->auth = REMOTE_AUTH_NONE; } virMutexUnlock(&client->lock); return 0; authfail: PROBE(CLIENT_AUTH_FAIL, "fd=%d, auth=%d", client->fd, REMOTE_AUTH_SASL); remoteDispatchAuthError(rerr); goto error; authdeny: PROBE(CLIENT_AUTH_DENY, "fd=%d, auth=%d, username=%s", client->fd, REMOTE_AUTH_SASL, client->saslUsername); goto error; error: virMutexUnlock(&client->lock); return -1; } static int remoteDispatchAuthSaslStep(struct qemud_server *server, struct qemud_client *client, virConnectPtr conn ATTRIBUTE_UNUSED, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_auth_sasl_step_args *args, remote_auth_sasl_step_ret *ret) { const char *serverout; unsigned int serveroutlen; int err; virMutexLock(&server->lock); virMutexLock(&client->lock); virMutexUnlock(&server->lock); VIR_DEBUG("Step SASL auth %d", client->fd); if (client->auth != REMOTE_AUTH_SASL || client->saslconn == NULL) { VIR_ERROR(_("client tried invalid SASL start request")); goto authfail; } VIR_DEBUG("Using SASL Data %d bytes, nil: %d", args->data.data_len, args->nil); err = sasl_server_step(client->saslconn, /* NB, distinction of NULL vs "" is *critical* in SASL */ args->nil ? NULL : args->data.data_val, args->data.data_len, &serverout, &serveroutlen); if (err != SASL_OK && err != SASL_CONTINUE) { VIR_ERROR(_("sasl step failed %d (%s)"), err, sasl_errdetail(client->saslconn)); sasl_dispose(&client->saslconn); client->saslconn = NULL; goto authfail; } if (serveroutlen > REMOTE_AUTH_SASL_DATA_MAX) { VIR_ERROR(_("sasl step reply data too long %d"), serveroutlen); sasl_dispose(&client->saslconn); client->saslconn = NULL; goto authfail; } /* NB, distinction of NULL vs "" is *critical* in SASL */ if (serverout) { if (VIR_ALLOC_N(ret->data.data_val, serveroutlen) < 0) { virReportOOMError(); remoteDispatchError(rerr); goto error; } memcpy(ret->data.data_val, serverout, serveroutlen); } else { ret->data.data_val = NULL; } ret->nil = serverout ? 0 : 1; ret->data.data_len = serveroutlen; VIR_DEBUG("SASL return data %d bytes, nil; %d", ret->data.data_len, ret->nil); if (err == SASL_CONTINUE) { ret->complete = 0; } else { /* Check username whitelist ACL */ if ((err = remoteSASLCheckAccess(server, client, rerr)) < 0 || (err = remoteSASLCheckSSF(client, rerr)) < 0) { if (err == -2) goto authdeny; else goto authfail; } VIR_DEBUG("Authentication successful %d", client->fd); PROBE(CLIENT_AUTH_ALLOW, "fd=%d, auth=%d, username=%s", client->fd, REMOTE_AUTH_SASL, client->saslUsername); ret->complete = 1; client->auth = REMOTE_AUTH_NONE; } virMutexUnlock(&client->lock); return 0; authfail: PROBE(CLIENT_AUTH_FAIL, "fd=%d, auth=%d", client->fd, REMOTE_AUTH_SASL); remoteDispatchAuthError(rerr); goto error; authdeny: PROBE(CLIENT_AUTH_DENY, "fd=%d, auth=%d, username=%s", client->fd, REMOTE_AUTH_SASL, client->saslUsername); goto error; error: virMutexUnlock(&client->lock); return -1; } #else /* HAVE_SASL */ static int remoteDispatchAuthSaslInit(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn ATTRIBUTE_UNUSED, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_auth_sasl_init_ret *ret ATTRIBUTE_UNUSED) { VIR_ERROR(_("client tried unsupported SASL init request")); PROBE(CLIENT_AUTH_FAIL, "fd=%d, auth=%d", client->fd, REMOTE_AUTH_SASL); remoteDispatchAuthError(rerr); return -1; } static int remoteDispatchAuthSaslStart(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn ATTRIBUTE_UNUSED, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_auth_sasl_start_args *args ATTRIBUTE_UNUSED, remote_auth_sasl_start_ret *ret ATTRIBUTE_UNUSED) { VIR_ERROR(_("client tried unsupported SASL start request")); PROBE(CLIENT_AUTH_FAIL, "fd=%d, auth=%d", client->fd, REMOTE_AUTH_SASL); remoteDispatchAuthError(rerr); return -1; } static int remoteDispatchAuthSaslStep(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn ATTRIBUTE_UNUSED, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_auth_sasl_step_args *args ATTRIBUTE_UNUSED, remote_auth_sasl_step_ret *ret ATTRIBUTE_UNUSED) { VIR_ERROR(_("client tried unsupported SASL step request")); PROBE(CLIENT_AUTH_FAIL, "fd=%d, auth=%d", client->fd, REMOTE_AUTH_SASL); remoteDispatchAuthError(rerr); return -1; } #endif /* HAVE_SASL */ #if HAVE_POLKIT1 static int remoteDispatchAuthPolkit(struct qemud_server *server, struct qemud_client *client, virConnectPtr conn ATTRIBUTE_UNUSED, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_auth_polkit_ret *ret) { pid_t callerPid = -1; uid_t callerUid = -1; const char *action; int status = -1; char pidbuf[50]; char ident[100]; int rv; memset(ident, 0, sizeof ident); virMutexLock(&server->lock); virMutexLock(&client->lock); virMutexUnlock(&server->lock); action = client->readonly ? "org.libvirt.unix.monitor" : "org.libvirt.unix.manage"; const char * const pkcheck [] = { PKCHECK_PATH, "--action-id", action, "--process", pidbuf, "--allow-user-interaction", NULL }; VIR_DEBUG("Start PolicyKit auth %d", client->fd); if (client->auth != REMOTE_AUTH_POLKIT) { VIR_ERROR(_("client tried invalid PolicyKit init request")); goto authfail; } if (qemudGetSocketIdentity(client->fd, &callerUid, &callerPid) < 0) { VIR_ERROR(_("cannot get peer socket identity")); goto authfail; } VIR_INFO("Checking PID %d running as %d", callerPid, callerUid); rv = snprintf(pidbuf, sizeof pidbuf, "%d", callerPid); if (rv < 0 || rv >= sizeof pidbuf) { VIR_ERROR(_("Caller PID was too large %d"), callerPid); goto authfail; } rv = snprintf(ident, sizeof ident, "pid:%d,uid:%d", callerPid, callerUid); if (rv < 0 || rv >= sizeof ident) { VIR_ERROR(_("Caller identity was too large %d:%d"), callerPid, callerUid); goto authfail; } if (virRun(pkcheck, &status) < 0) { VIR_ERROR(_("Cannot invoke %s"), PKCHECK_PATH); goto authfail; } if (status != 0) { char *tmp = virCommandTranslateStatus(status); VIR_ERROR(_("Policy kit denied action %s from pid %d, uid %d: %s"), action, callerPid, callerUid, NULLSTR(tmp)); VIR_FREE(tmp); goto authdeny; } PROBE(CLIENT_AUTH_ALLOW, "fd=%d, auth=%d, username=%s", client->fd, REMOTE_AUTH_POLKIT, (char *)ident); VIR_INFO("Policy allowed action %s from pid %d, uid %d", action, callerPid, callerUid); ret->complete = 1; client->auth = REMOTE_AUTH_NONE; virMutexUnlock(&client->lock); return 0; authfail: PROBE(CLIENT_AUTH_FAIL, "fd=%d, auth=%d", client->fd, REMOTE_AUTH_POLKIT); goto error; authdeny: PROBE(CLIENT_AUTH_DENY, "fd=%d, auth=%d, username=%s", client->fd, REMOTE_AUTH_POLKIT, (char *)ident); goto error; error: remoteDispatchAuthError(rerr); virMutexUnlock(&client->lock); return -1; } #elif HAVE_POLKIT0 static int remoteDispatchAuthPolkit(struct qemud_server *server, struct qemud_client *client, virConnectPtr conn ATTRIBUTE_UNUSED, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_auth_polkit_ret *ret) { pid_t callerPid; uid_t callerUid; PolKitCaller *pkcaller = NULL; PolKitAction *pkaction = NULL; PolKitContext *pkcontext = NULL; PolKitError *pkerr = NULL; PolKitResult pkresult; DBusError err; const char *action; char ident[100]; int rv; memset(ident, 0, sizeof ident); virMutexLock(&server->lock); virMutexLock(&client->lock); virMutexUnlock(&server->lock); action = client->readonly ? "org.libvirt.unix.monitor" : "org.libvirt.unix.manage"; VIR_DEBUG("Start PolicyKit auth %d", client->fd); if (client->auth != REMOTE_AUTH_POLKIT) { VIR_ERROR(_("client tried invalid PolicyKit init request")); goto authfail; } if (qemudGetSocketIdentity(client->fd, &callerUid, &callerPid) < 0) { VIR_ERROR(_("cannot get peer socket identity")); goto authfail; } rv = snprintf(ident, sizeof ident, "pid:%d,uid:%d", callerPid, callerUid); if (rv < 0 || rv >= sizeof ident) { VIR_ERROR(_("Caller identity was too large %d:%d"), callerPid, callerUid); goto authfail; } VIR_INFO("Checking PID %d running as %d", callerPid, callerUid); dbus_error_init(&err); if (!(pkcaller = polkit_caller_new_from_pid(server->sysbus, callerPid, &err))) { VIR_ERROR(_("Failed to lookup policy kit caller: %s"), err.message); dbus_error_free(&err); goto authfail; } if (!(pkaction = polkit_action_new())) { char ebuf[1024]; VIR_ERROR(_("Failed to create polkit action %s"), virStrerror(errno, ebuf, sizeof ebuf)); polkit_caller_unref(pkcaller); goto authfail; } polkit_action_set_action_id(pkaction, action); if (!(pkcontext = polkit_context_new()) || !polkit_context_init(pkcontext, &pkerr)) { char ebuf[1024]; VIR_ERROR(_("Failed to create polkit context %s"), (pkerr ? polkit_error_get_error_message(pkerr) : virStrerror(errno, ebuf, sizeof ebuf))); if (pkerr) polkit_error_free(pkerr); polkit_caller_unref(pkcaller); polkit_action_unref(pkaction); dbus_error_free(&err); goto authfail; } # if HAVE_POLKIT_CONTEXT_IS_CALLER_AUTHORIZED pkresult = polkit_context_is_caller_authorized(pkcontext, pkaction, pkcaller, 0, &pkerr); if (pkerr && polkit_error_is_set(pkerr)) { VIR_ERROR(_("Policy kit failed to check authorization %d %s"), polkit_error_get_error_code(pkerr), polkit_error_get_error_message(pkerr)); goto authfail; } # else pkresult = polkit_context_can_caller_do_action(pkcontext, pkaction, pkcaller); # endif polkit_context_unref(pkcontext); polkit_caller_unref(pkcaller); polkit_action_unref(pkaction); if (pkresult != POLKIT_RESULT_YES) { VIR_ERROR(_("Policy kit denied action %s from pid %d, uid %d, result: %s"), action, callerPid, callerUid, polkit_result_to_string_representation(pkresult)); goto authdeny; } PROBE(CLIENT_AUTH_ALLOW, "fd=%d, auth=%d, username=%s", client->fd, REMOTE_AUTH_POLKIT, ident); VIR_INFO("Policy allowed action %s from pid %d, uid %d, result %s", action, callerPid, callerUid, polkit_result_to_string_representation(pkresult)); ret->complete = 1; client->auth = REMOTE_AUTH_NONE; virMutexUnlock(&client->lock); return 0; authfail: PROBE(CLIENT_AUTH_FAIL, "fd=%d, auth=%d", client->fd, REMOTE_AUTH_POLKIT); goto error; authdeny: PROBE(CLIENT_AUTH_DENY, "fd=%d, auth=%d, username=%s", client->fd, REMOTE_AUTH_POLKIT, ident); goto error; error: remoteDispatchAuthError(rerr); virMutexUnlock(&client->lock); return -1; } #else /* !HAVE_POLKIT0 & !HAVE_POLKIT1*/ static int remoteDispatchAuthPolkit(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn ATTRIBUTE_UNUSED, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, void *args ATTRIBUTE_UNUSED, remote_auth_polkit_ret *ret ATTRIBUTE_UNUSED) { VIR_ERROR(_("client tried unsupported PolicyKit init request")); remoteDispatchAuthError(rerr); return -1; } #endif /* HAVE_POLKIT1 */ /*************************************************************** * NODE INFO APIS **************************************************************/ static int remoteDispatchNodeDeviceGetParent(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_node_device_get_parent_args *args, remote_node_device_get_parent_ret *ret) { virNodeDevicePtr dev = NULL; const char *parent = NULL; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (!(dev = virNodeDeviceLookupByName(conn, args->name))) goto cleanup; parent = virNodeDeviceGetParent(dev); if (parent == NULL) { ret->parent = NULL; } else { /* remoteDispatchClientRequest will free this. */ char **parent_p; if (VIR_ALLOC(parent_p) < 0) { virReportOOMError(); goto cleanup; } if (!(*parent_p = strdup(parent))) { VIR_FREE(parent_p); virReportOOMError(); goto cleanup; } ret->parent = parent_p; } rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); if (dev) virNodeDeviceFree(dev); return rv; } /*************************** * Register / deregister events ***************************/ static int remoteDispatchDomainEventsRegister(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr ATTRIBUTE_UNUSED, void *args ATTRIBUTE_UNUSED, remote_domain_events_register_ret *ret ATTRIBUTE_UNUSED) { int callbackID; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (client->domainEventCallbackID[VIR_DOMAIN_EVENT_ID_LIFECYCLE] != -1) { virNetError(VIR_ERR_INTERNAL_ERROR, _("domain event %d already registered"), VIR_DOMAIN_EVENT_ID_LIFECYCLE); goto cleanup; } if ((callbackID = virConnectDomainEventRegisterAny(conn, NULL, VIR_DOMAIN_EVENT_ID_LIFECYCLE, VIR_DOMAIN_EVENT_CALLBACK(remoteRelayDomainEventLifecycle), client, NULL)) < 0) goto cleanup; client->domainEventCallbackID[VIR_DOMAIN_EVENT_ID_LIFECYCLE] = callbackID; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); return rv; } static int remoteDispatchDomainEventsDeregister(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr ATTRIBUTE_UNUSED, void *args ATTRIBUTE_UNUSED, remote_domain_events_deregister_ret *ret ATTRIBUTE_UNUSED) { int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (client->domainEventCallbackID[VIR_DOMAIN_EVENT_ID_LIFECYCLE] < 0) { virNetError(VIR_ERR_INTERNAL_ERROR, _("domain event %d not registered"), VIR_DOMAIN_EVENT_ID_LIFECYCLE); goto cleanup; } if (virConnectDomainEventDeregisterAny(conn, client->domainEventCallbackID[VIR_DOMAIN_EVENT_ID_LIFECYCLE]) < 0) goto cleanup; client->domainEventCallbackID[VIR_DOMAIN_EVENT_ID_LIFECYCLE] = -1; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); return rv; } static void remoteDispatchDomainEventSend(struct qemud_client *client, int procnr, xdrproc_t proc, void *data) { struct qemud_client_message *msg = NULL; XDR xdr; unsigned int len; if (VIR_ALLOC(msg) < 0) return; msg->hdr.prog = REMOTE_PROGRAM; msg->hdr.vers = REMOTE_PROTOCOL_VERSION; msg->hdr.proc = procnr; msg->hdr.type = REMOTE_MESSAGE; msg->hdr.serial = 1; msg->hdr.status = REMOTE_OK; if (remoteEncodeClientMessageHeader(msg) < 0) goto cleanup; /* Serialise the return header and event. */ xdrmem_create(&xdr, msg->buffer, msg->bufferLength, XDR_ENCODE); /* Skip over the header we just wrote */ if (xdr_setpos(&xdr, msg->bufferOffset) == 0) goto xdr_cleanup; if (!(proc)(&xdr, data)) { VIR_WARN("Failed to serialize domain event %d", procnr); goto xdr_cleanup; } /* Update length word to include payload*/ len = msg->bufferOffset = xdr_getpos(&xdr); if (xdr_setpos(&xdr, 0) == 0) goto xdr_cleanup; if (!xdr_u_int(&xdr, &len)) goto xdr_cleanup; /* Send it. */ msg->async = 1; msg->bufferLength = len; msg->bufferOffset = 0; VIR_DEBUG("Queue event %d %d", procnr, msg->bufferLength); qemudClientMessageQueuePush(&client->tx, msg); qemudUpdateClientEvent(client); xdr_destroy(&xdr); return; xdr_cleanup: xdr_destroy(&xdr); cleanup: VIR_FREE(msg); } static int remoteDispatchSecretGetValue(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_secret_get_value_args *args, remote_secret_get_value_ret *ret) { virSecretPtr secret = NULL; size_t value_size; unsigned char *value; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (!(secret = get_nonnull_secret(conn, args->secret))) goto cleanup; if (!(value = virSecretGetValue(secret, &value_size, args->flags))) goto cleanup; ret->value.value_len = value_size; ret->value.value_val = (char *)value; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); if (secret) virSecretFree(secret); return rv; } static int remoteDispatchDomainGetState(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_get_state_args *args, remote_domain_get_state_ret *ret) { virDomainPtr dom = NULL; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; if (virDomainGetState(dom, &ret->state, &ret->reason, args->flags) < 0) goto cleanup; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); if (dom) virDomainFree(dom); return rv; } static int remoteDispatchDomainEventsRegisterAny(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr ATTRIBUTE_UNUSED, remote_domain_events_register_any_args *args, void *ret ATTRIBUTE_UNUSED) { int callbackID; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (args->eventID >= VIR_DOMAIN_EVENT_ID_LAST || args->eventID < 0) { virNetError(VIR_ERR_INTERNAL_ERROR, _("unsupported event ID %d"), args->eventID); goto cleanup; } if (client->domainEventCallbackID[args->eventID] != -1) { virNetError(VIR_ERR_INTERNAL_ERROR, _("domain event %d already registered"), args->eventID); goto cleanup; } if ((callbackID = virConnectDomainEventRegisterAny(conn, NULL, args->eventID, domainEventCallbacks[args->eventID], client, NULL)) < 0) goto cleanup; client->domainEventCallbackID[args->eventID] = callbackID; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); return rv; } static int remoteDispatchDomainEventsDeregisterAny(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr ATTRIBUTE_UNUSED, remote_domain_events_deregister_any_args *args, void *ret ATTRIBUTE_UNUSED) { int callbackID = -1; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (args->eventID >= VIR_DOMAIN_EVENT_ID_LAST || args->eventID < 0) { virNetError(VIR_ERR_INTERNAL_ERROR, _("unsupported event ID %d"), args->eventID); goto cleanup; } if ((callbackID = client->domainEventCallbackID[args->eventID]) < 0) { virNetError(VIR_ERR_INTERNAL_ERROR, _("domain event %d not registered"), args->eventID); goto cleanup; } if (virConnectDomainEventDeregisterAny(conn, callbackID) < 0) goto cleanup; client->domainEventCallbackID[args->eventID] = -1; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); return rv; } static int qemuDispatchMonitorCommand(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, qemu_monitor_command_args *args, qemu_monitor_command_ret *ret) { virDomainPtr dom = NULL; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; if (virDomainQemuMonitorCommand(dom, args->cmd, &ret->result, args->flags) < 0) goto cleanup; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); if (dom) virDomainFree(dom); return rv; } #include "remote_dispatch_bodies.h" #include "qemu_dispatch_bodies.h" static int remoteDispatchDomainMigrateBegin3(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_migrate_begin3_args *args, remote_domain_migrate_begin3_ret *ret) { char *xml = NULL; virDomainPtr dom = NULL; char *dname; char *xmlin; char *cookieout = NULL; int cookieoutlen = 0; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; xmlin = args->xmlin == NULL ? NULL : *args->xmlin; dname = args->dname == NULL ? NULL : *args->dname; if (!(xml = virDomainMigrateBegin3(dom, xmlin, &cookieout, &cookieoutlen, args->flags, dname, args->resource))) goto cleanup; /* remoteDispatchClientRequest will free cookie and * the xml string if there is one. */ ret->cookie_out.cookie_out_len = cookieoutlen; ret->cookie_out.cookie_out_val = cookieout; ret->xml = xml; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); if (dom) virDomainFree(dom); return rv; } static int remoteDispatchDomainMigratePrepare3(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_migrate_prepare3_args *args, remote_domain_migrate_prepare3_ret *ret) { char *cookieout = NULL; int cookieoutlen = 0; char *uri_in; char **uri_out; char *dname; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } uri_in = args->uri_in == NULL ? NULL : *args->uri_in; dname = args->dname == NULL ? NULL : *args->dname; /* Wacky world of XDR ... */ if (VIR_ALLOC(uri_out) < 0) { virReportOOMError(); goto cleanup; } if (virDomainMigratePrepare3(conn, args->cookie_in.cookie_in_val, args->cookie_in.cookie_in_len, &cookieout, &cookieoutlen, uri_in, uri_out, args->flags, dname, args->resource, args->dom_xml) < 0) goto cleanup; /* remoteDispatchClientRequest will free cookie, uri_out and * the string if there is one. */ ret->cookie_out.cookie_out_len = cookieoutlen; ret->cookie_out.cookie_out_val = cookieout; ret->uri_out = *uri_out == NULL ? NULL : uri_out; rv = 0; cleanup: if (rv < 0) { remoteDispatchError(rerr); VIR_FREE(uri_out); } return rv; } static int remoteDispatchDomainMigratePerform3(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_migrate_perform3_args *args, remote_domain_migrate_perform3_ret *ret) { virDomainPtr dom = NULL; char *xmlin; char *dname; char *uri; char *dconnuri; char *cookieout = NULL; int cookieoutlen = 0; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; xmlin = args->xmlin == NULL ? NULL : *args->xmlin; dname = args->dname == NULL ? NULL : *args->dname; uri = args->uri == NULL ? NULL : *args->uri; dconnuri = args->dconnuri == NULL ? NULL : *args->dconnuri; if (virDomainMigratePerform3(dom, xmlin, args->cookie_in.cookie_in_val, args->cookie_in.cookie_in_len, &cookieout, &cookieoutlen, dconnuri, uri, args->flags, dname, args->resource) < 0) goto cleanup; /* remoteDispatchClientRequest will free cookie */ ret->cookie_out.cookie_out_len = cookieoutlen; ret->cookie_out.cookie_out_val = cookieout; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); if (dom) virDomainFree(dom); return rv; } static int remoteDispatchDomainMigrateFinish3(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_migrate_finish3_args *args, remote_domain_migrate_finish3_ret *ret) { virDomainPtr dom = NULL; char *cookieout = NULL; int cookieoutlen = 0; char *uri; char *dconnuri; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } uri = args->uri == NULL ? NULL : *args->uri; dconnuri = args->dconnuri == NULL ? NULL : *args->dconnuri; if (!(dom = virDomainMigrateFinish3(conn, args->dname, args->cookie_in.cookie_in_val, args->cookie_in.cookie_in_len, &cookieout, &cookieoutlen, dconnuri, uri, args->flags, args->cancelled))) goto cleanup; make_nonnull_domain(&ret->dom, dom); /* remoteDispatchClientRequest will free cookie */ ret->cookie_out.cookie_out_len = cookieoutlen; ret->cookie_out.cookie_out_val = cookieout; rv = 0; cleanup: if (rv < 0) { remoteDispatchError(rerr); VIR_FREE(cookieout); } if (dom) virDomainFree(dom); return rv; } static int remoteDispatchDomainMigrateConfirm3(struct qemud_server *server ATTRIBUTE_UNUSED, struct qemud_client *client ATTRIBUTE_UNUSED, virConnectPtr conn, remote_message_header *hdr ATTRIBUTE_UNUSED, remote_error *rerr, remote_domain_migrate_confirm3_args *args, void *ret ATTRIBUTE_UNUSED) { virDomainPtr dom = NULL; int rv = -1; if (!conn) { virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); goto cleanup; } if (!(dom = get_nonnull_domain(conn, args->dom))) goto cleanup; if (virDomainMigrateConfirm3(dom, args->cookie_in.cookie_in_val, args->cookie_in.cookie_in_len, args->flags, args->cancelled) < 0) goto cleanup; rv = 0; cleanup: if (rv < 0) remoteDispatchError(rerr); if (dom) virDomainFree(dom); return rv; } /*----- Helpers. -----*/ /* get_nonnull_domain and get_nonnull_network turn an on-wire * (name, uuid) pair into virDomainPtr or virNetworkPtr object. * virDomainPtr or virNetworkPtr cannot be NULL. * * NB. If these return NULL then the caller must return an error. */ static virDomainPtr get_nonnull_domain(virConnectPtr conn, remote_nonnull_domain domain) { virDomainPtr dom; dom = virGetDomain(conn, domain.name, BAD_CAST domain.uuid); /* Should we believe the domain.id sent by the client? Maybe * this should be a check rather than an assignment? XXX */ if (dom) dom->id = domain.id; return dom; } static virNetworkPtr get_nonnull_network(virConnectPtr conn, remote_nonnull_network network) { return virGetNetwork(conn, network.name, BAD_CAST network.uuid); } static virInterfacePtr get_nonnull_interface(virConnectPtr conn, remote_nonnull_interface iface) { return virGetInterface(conn, iface.name, iface.mac); } static virStoragePoolPtr get_nonnull_storage_pool(virConnectPtr conn, remote_nonnull_storage_pool pool) { return virGetStoragePool(conn, pool.name, BAD_CAST pool.uuid); } static virStorageVolPtr get_nonnull_storage_vol(virConnectPtr conn, remote_nonnull_storage_vol vol) { virStorageVolPtr ret; ret = virGetStorageVol(conn, vol.pool, vol.name, vol.key); return ret; } static virSecretPtr get_nonnull_secret(virConnectPtr conn, remote_nonnull_secret secret) { return virGetSecret(conn, BAD_CAST secret.uuid, secret.usageType, secret.usageID); } static virNWFilterPtr get_nonnull_nwfilter(virConnectPtr conn, remote_nonnull_nwfilter nwfilter) { return virGetNWFilter(conn, nwfilter.name, BAD_CAST nwfilter.uuid); } static virDomainSnapshotPtr get_nonnull_domain_snapshot(virDomainPtr dom, remote_nonnull_domain_snapshot snapshot) { return virGetDomainSnapshot(dom, snapshot.name); } /* Make remote_nonnull_domain and remote_nonnull_network. */ static void make_nonnull_domain(remote_nonnull_domain *dom_dst, virDomainPtr dom_src) { dom_dst->id = dom_src->id; dom_dst->name = strdup(dom_src->name); memcpy(dom_dst->uuid, dom_src->uuid, VIR_UUID_BUFLEN); } static void make_nonnull_network(remote_nonnull_network *net_dst, virNetworkPtr net_src) { net_dst->name = strdup(net_src->name); memcpy(net_dst->uuid, net_src->uuid, VIR_UUID_BUFLEN); } static void make_nonnull_interface(remote_nonnull_interface *interface_dst, virInterfacePtr interface_src) { interface_dst->name = strdup(interface_src->name); interface_dst->mac = strdup(interface_src->mac); } static void make_nonnull_storage_pool(remote_nonnull_storage_pool *pool_dst, virStoragePoolPtr pool_src) { pool_dst->name = strdup(pool_src->name); memcpy(pool_dst->uuid, pool_src->uuid, VIR_UUID_BUFLEN); } static void make_nonnull_storage_vol(remote_nonnull_storage_vol *vol_dst, virStorageVolPtr vol_src) { vol_dst->pool = strdup(vol_src->pool); vol_dst->name = strdup(vol_src->name); vol_dst->key = strdup(vol_src->key); } static void make_nonnull_node_device(remote_nonnull_node_device *dev_dst, virNodeDevicePtr dev_src) { dev_dst->name = strdup(dev_src->name); } static void make_nonnull_secret(remote_nonnull_secret *secret_dst, virSecretPtr secret_src) { memcpy(secret_dst->uuid, secret_src->uuid, VIR_UUID_BUFLEN); secret_dst->usageType = secret_src->usageType; secret_dst->usageID = strdup(secret_src->usageID); } static void make_nonnull_nwfilter(remote_nonnull_nwfilter *nwfilter_dst, virNWFilterPtr nwfilter_src) { nwfilter_dst->name = strdup(nwfilter_src->name); memcpy(nwfilter_dst->uuid, nwfilter_src->uuid, VIR_UUID_BUFLEN); } static void make_nonnull_domain_snapshot(remote_nonnull_domain_snapshot *snapshot_dst, virDomainSnapshotPtr snapshot_src) { snapshot_dst->name = strdup(snapshot_src->name); make_nonnull_domain(&snapshot_dst->dom, snapshot_src->domain); }