Richard W.M. Jones wrote:
Daniel P. Berrange wrote:Finally, withCHECK_CONN;Is it possible to tweak the macro definition so its use appears as CHECK_CONN(client); So its clear what variable this macro is doing work against.Will do.
Attached is the updated remote.c. The only difference is that CHECK_CONN now takes an extra client connection as requested above.
Rich. -- Emerging Technologies, Red Hat http://et.redhat.com/~rjones/ 64 Baker Street, London, W1U 7DF Mobile: +44 7866 314 421 Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 Directors: Michael Cunningham (USA), Charlie Peters (USA) and David Owens (Ireland)
/*
* remote.c: code handling remote requests (from remote_internal.c)
*
* Copyright (C) 2007 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 <rjones@xxxxxxxxxx>
*/
#include <config.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <paths.h>
#include <limits.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/poll.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdlib.h>
#include <pwd.h>
#include <stdio.h>
#include <stdarg.h>
#include <syslog.h>
#include <string.h>
#include <errno.h>
#include <getopt.h>
#include <ctype.h>
#include <assert.h>
#include <libvirt/virterror.h>
#include "internal.h"
#include "../src/internal.h"
#include "dispatch.h"
#include "driver.h"
#include "conf.h"
#include "iptables.h"
#define DEBUG 0
static void remoteDispatchError (struct qemud_client *client,
remote_message_header *req,
const char *fmt, ...);
static virDomainPtr get_nonnull_domain (virConnectPtr conn, remote_nonnull_domain domain);
static virNetworkPtr get_nonnull_network (virConnectPtr conn, remote_nonnull_network network);
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);
#include "remote_dispatch_prototypes.h"
typedef int (*dispatch_fn) (struct qemud_client *client, remote_message_header *req, char *args, char *ret);
/* This function gets called from qemud when it detects an incoming
* remote protocol message. At this point, client->buffer contains
* the full call message (including length word which we skip).
*/
void
remoteDispatchClientRequest (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client)
{
XDR xdr;
remote_message_header req, rep;
dispatch_fn fn;
xdrproc_t args_filter = (xdrproc_t) xdr_void;
xdrproc_t ret_filter = (xdrproc_t) xdr_void;
char *args = NULL, *ret = NULL;
int rv, len;
#include "remote_dispatch_localvars.h"
/* Parse the header. */
xdrmem_create (&xdr, client->buffer+4, client->bufferLength-4, XDR_DECODE);
if (!xdr_remote_message_header (&xdr, &req)) {
remoteDispatchError (client, NULL, "xdr_remote_message_header");
xdr_destroy (&xdr);
return;
}
/* Check version, etc. */
if (req.prog != REMOTE_PROGRAM) {
remoteDispatchError (client, &req, "program mismatch (actual %x, expected %x)",
req.prog, REMOTE_PROGRAM);
xdr_destroy (&xdr);
return;
}
if (req.vers != REMOTE_PROTOCOL_VERSION) {
remoteDispatchError (client, &req, "version mismatch (actual %x, expected %x)",
req.vers, REMOTE_PROTOCOL_VERSION);
xdr_destroy (&xdr);
return;
}
if (req.direction != REMOTE_CALL) {
remoteDispatchError (client, &req, "direction (%d) != REMOTE_CALL",
(int) req.direction);
xdr_destroy (&xdr);
return;
}
if (req.status != REMOTE_OK) {
remoteDispatchError (client, &req, "status (%d) != REMOTE_OK",
(int) req.status);
xdr_destroy (&xdr);
return;
}
/* Based on the procedure number, dispatch. In future we may base
* this on the version number as well.
*/
switch (req.proc) {
#include "remote_dispatch_proc_switch.h"
default:
remoteDispatchError (client, &req, "unknown procedure: %d",
req.proc);
xdr_destroy (&xdr);
return;
}
/* Parse args. */
if (!(*args_filter) (&xdr, args)) {
remoteDispatchError (client, &req, "parse args failed");
xdr_destroy (&xdr);
return;
}
xdr_destroy (&xdr);
/* Call function. */
rv = fn (client, &req, args, ret);
xdr_free (args_filter, args);
/* Dispatch function must return -2, -1 or 0. Anything else is
* an internal error.
*/
if (rv < -2 || rv > 0) {
remoteDispatchError (client, &req, "internal error - dispatch function returned invalid code %d", rv);
return;
}
/* Dispatch error? If so then the function has already set up the
* return buffer, so just return immediately.
*/
if (rv == -2) return;
/* Return header. */
rep.prog = req.prog;
rep.vers = req.vers;
rep.proc = req.proc;
rep.direction = REMOTE_REPLY;
rep.serial = req.serial;
rep.status = rv == 0 ? REMOTE_OK : REMOTE_ERROR;
/* Serialise the return header. */
xdrmem_create (&xdr, client->buffer, sizeof client->buffer, XDR_ENCODE);
len = 0; /* We'll come back and write this later. */
if (!xdr_int (&xdr, &len)) {
remoteDispatchError (client, &req, "dummy length");
xdr_destroy (&xdr);
if (rv == 0) xdr_free (ret_filter, ret);
return;
}
if (!xdr_remote_message_header (&xdr, &rep)) {
remoteDispatchError (client, &req, "serialise reply header");
xdr_destroy (&xdr);
if (rv == 0) xdr_free (ret_filter, ret);
return;
}
/* If OK, serialise return structure, if error serialise error. */
if (rv == 0) {
if (!(*ret_filter) (&xdr, ret)) {
remoteDispatchError (client, &req, "serialise return struct");
xdr_destroy (&xdr);
return;
}
xdr_free (ret_filter, ret);
} else /* error */ {
virErrorPtr verr;
remote_error error;
remote_nonnull_domain dom;
remote_nonnull_network net;
verr = client->conn
? virConnGetLastError (client->conn)
: virGetLastError ();
if (verr) {
error.code = verr->code;
error.domain = verr->domain;
error.message = verr->message ? &verr->message : NULL;
error.level = verr->level;
if (verr->dom) {
dom.name = verr->dom->name;
memcpy (dom.uuid, verr->dom->uuid, VIR_UUID_BUFLEN);
dom.id = verr->dom->id;
}
error.dom = verr->dom ? &dom : NULL;
error.str1 = verr->str1 ? &verr->str1 : NULL;
error.str2 = verr->str2 ? &verr->str2 : NULL;
error.str3 = verr->str3 ? &verr->str3 : NULL;
error.int1 = verr->int1;
error.int2 = verr->int2;
if (verr->net) {
net.name = verr->net->name;
memcpy (net.uuid, verr->net->uuid, VIR_UUID_BUFLEN);
}
error.net = verr->net ? &net : NULL;
} else {
/* Error was NULL so synthesize an error. */
char msgbuf[] = "remoteDispatchClientRequest: internal error: library function returned error but did not set virterror";
char *msg = msgbuf;
error.code = VIR_ERR_RPC;
error.domain = VIR_FROM_REMOTE;
error.message = &msg;
error.level = VIR_ERR_ERROR;
error.dom = NULL;
error.str1 = &msg;
error.str2 = NULL;
error.str3 = NULL;
error.int1 = 0;
error.int2 = 0;
error.net = NULL;
}
if (!xdr_remote_error (&xdr, &error)) {
remoteDispatchError (client, &req, "serialise return error");
xdr_destroy (&xdr);
return;
}
}
/* Write the length word. */
len = xdr_getpos (&xdr);
if (xdr_setpos (&xdr, 0) == 0) {
remoteDispatchError (client, &req, "xdr_setpos");
xdr_destroy (&xdr);
return;
}
if (!xdr_int (&xdr, &len)) {
remoteDispatchError (client, &req, "serialise return length");
xdr_destroy (&xdr);
return;
}
xdr_destroy (&xdr);
/* Set up the output buffer. */
client->mode = QEMUD_MODE_TX_PACKET;
client->bufferLength = len;
client->bufferOffset = 0;
if (client->tls) client->direction = QEMUD_TLS_DIRECTION_WRITE;
}
/* An error occurred during the dispatching process itself (ie. not
* an error from the function being called). We return an error
* reply.
*/
static void
remoteDispatchError (struct qemud_client *client,
remote_message_header *req,
const char *fmt, ...)
{
remote_message_header rep;
remote_error error;
va_list args;
char msgbuf[1024];
char *msg = msgbuf;
XDR xdr;
int len;
va_start (args, fmt);
vsnprintf (msgbuf, sizeof msgbuf, fmt, args);
va_end (args);
qemudDebug ("%s", msgbuf);
/* Future versions of the protocol may use different vers or prog. Try
* our hardest to send back a message that such clients could see.
*/
if (req) {
rep.prog = req->prog;
rep.vers = req->vers;
rep.proc = req->proc;
rep.direction = REMOTE_REPLY;
rep.serial = req->serial;
rep.status = REMOTE_ERROR;
} else {
rep.prog = REMOTE_PROGRAM;
rep.vers = REMOTE_PROTOCOL_VERSION;
rep.proc = REMOTE_PROC_OPEN;
rep.direction = REMOTE_REPLY;
rep.serial = 1;
rep.status = REMOTE_ERROR;
}
/* Construct the error. */
error.code = VIR_ERR_RPC;
error.domain = VIR_FROM_REMOTE;
error.message = &msg;
error.level = VIR_ERR_ERROR;
error.dom = NULL;
error.str1 = &msg;
error.str2 = NULL;
error.str3 = NULL;
error.int1 = 0;
error.int2 = 0;
error.net = NULL;
/* Serialise the return header and error. */
xdrmem_create (&xdr, client->buffer, sizeof client->buffer, XDR_ENCODE);
len = 0; /* We'll come back and write this later. */
if (!xdr_int (&xdr, &len)) {
xdr_destroy (&xdr);
return;
}
if (!xdr_remote_message_header (&xdr, &rep)) {
xdr_destroy (&xdr);
return;
}
if (!xdr_remote_error (&xdr, &error)) {
xdr_destroy (&xdr);
return;
}
len = xdr_getpos (&xdr);
if (xdr_setpos (&xdr, 0) == 0) {
xdr_destroy (&xdr);
return;
}
if (!xdr_int (&xdr, &len)) {
xdr_destroy (&xdr);
return;
}
xdr_destroy (&xdr);
/* Send it. */
client->mode = QEMUD_MODE_TX_PACKET;
client->bufferLength = len;
client->bufferOffset = 0;
if (client->tls) client->direction = QEMUD_TLS_DIRECTION_WRITE;
}
/*----- Functions. -----*/
static int
remoteDispatchOpen (struct qemud_client *client, remote_message_header *req,
struct remote_open_args *args, void *ret ATTRIBUTE_UNUSED)
{
const char *name;
int flags;
/* Already opened? */
if (client->conn) {
remoteDispatchError (client, req, "connection already open");
return -2;
}
name = args->name ? *args->name : NULL;
#if DEBUG
fprintf (stderr, "remoteDispatchOpen: name = %s\n", name);
#endif
/* 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);
return client->conn ? 0 : -1;
}
#define CHECK_CONN(client) \
if (!client->conn) { \
remoteDispatchError (client, req, "connection not open"); \
return -2; \
}
static int
remoteDispatchClose (struct qemud_client *client, remote_message_header *req,
void *args ATTRIBUTE_UNUSED, void *ret ATTRIBUTE_UNUSED)
{
int rv;
CHECK_CONN(client);
rv = virConnectClose (client->conn);
if (rv == 0) client->conn = NULL;
return rv;
}
static int
remoteDispatchGetType (struct qemud_client *client, remote_message_header *req,
void *args ATTRIBUTE_UNUSED, remote_get_type_ret *ret)
{
const char *type;
CHECK_CONN(client);
type = virConnectGetType (client->conn);
if (type == NULL) return -1;
/* We have to strdup because remoteDispatchClientRequest will
* free this string after it's been serialised.
*/
ret->type = strdup (type);
if (!ret->type) {
remoteDispatchError (client, req, "out of memory in strdup");
return -2;
}
return 0;
}
static int
remoteDispatchGetVersion (struct qemud_client *client,
remote_message_header *req,
void *args ATTRIBUTE_UNUSED,
remote_get_version_ret *ret)
{
unsigned long hvVer;
CHECK_CONN(client);
if (virConnectGetVersion (client->conn, &hvVer) == -1)
return -1;
ret->hv_ver = hvVer;
return 0;
}
static int
remoteDispatchGetMaxVcpus (struct qemud_client *client,
remote_message_header *req,
remote_get_max_vcpus_args *args,
remote_get_max_vcpus_ret *ret)
{
char *type;
CHECK_CONN(client);
type = args->type ? *args->type : NULL;
ret->max_vcpus = virConnectGetMaxVcpus (client->conn, type);
if (ret->max_vcpus == -1) return -1;
return 0;
}
static int
remoteDispatchNodeGetInfo (struct qemud_client *client,
remote_message_header *req,
void *args ATTRIBUTE_UNUSED,
remote_node_get_info_ret *ret)
{
virNodeInfo info;
CHECK_CONN(client);
if (virNodeGetInfo (client->conn, &info) == -1)
return -1;
memcpy (ret->model, info.model, sizeof ret->model);
ret->memory = info.memory;
ret->cpus = info.cpus;
ret->mhz = info.mhz;
ret->nodes = info.nodes;
ret->sockets = info.sockets;
ret->cores = info.cores;
ret->threads = info.threads;
return 0;
}
static int
remoteDispatchGetCapabilities (struct qemud_client *client,
remote_message_header *req,
void *args ATTRIBUTE_UNUSED,
remote_get_capabilities_ret *ret)
{
char *caps;
CHECK_CONN(client);
caps = virConnectGetCapabilities (client->conn);
if (caps == NULL) return -1;
ret->capabilities = caps;
return 0;
}
static int
remoteDispatchDomainAttachDevice (struct qemud_client *client,
remote_message_header *req,
remote_domain_attach_device_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainAttachDevice (dom, args->xml) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainCreate (struct qemud_client *client,
remote_message_header *req,
remote_domain_create_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainCreate (dom) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainCreateLinux (struct qemud_client *client,
remote_message_header *req,
remote_domain_create_linux_args *args,
remote_domain_create_linux_ret *ret)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = virDomainCreateLinux (client->conn, args->xml_desc, args->flags);
if (dom == NULL) return -1;
make_nonnull_domain (&ret->dom, dom);
return 0;
}
static int
remoteDispatchDomainDefineXml (struct qemud_client *client,
remote_message_header *req,
remote_domain_define_xml_args *args,
remote_domain_define_xml_ret *ret)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = virDomainDefineXML (client->conn, args->xml);
if (dom == NULL) return -1;
make_nonnull_domain (&ret->dom, dom);
return 0;
}
static int
remoteDispatchDomainDestroy (struct qemud_client *client,
remote_message_header *req,
remote_domain_destroy_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainDestroy (dom) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainDetachDevice (struct qemud_client *client,
remote_message_header *req,
remote_domain_detach_device_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainDetachDevice (dom, args->xml) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainDumpXml (struct qemud_client *client,
remote_message_header *req,
remote_domain_dump_xml_args *args,
remote_domain_dump_xml_ret *ret)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
/* remoteDispatchClientRequest will free this. */
ret->xml = virDomainGetXMLDesc (dom, args->flags);
if (!ret->xml) return -1;
return 0;
}
static int
remoteDispatchDomainGetAutostart (struct qemud_client *client,
remote_message_header *req,
remote_domain_get_autostart_args *args,
remote_domain_get_autostart_ret *ret)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainGetAutostart (dom, &ret->autostart) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainGetInfo (struct qemud_client *client,
remote_message_header *req,
remote_domain_get_info_args *args,
remote_domain_get_info_ret *ret)
{
virDomainPtr dom;
virDomainInfo info;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainGetInfo (dom, &info) == -1)
return -1;
ret->state = info.state;
ret->max_mem = info.maxMem;
ret->memory = info.memory;
ret->nr_virt_cpu = info.nrVirtCpu;
ret->cpu_time = info.cpuTime;
return 0;
}
static int
remoteDispatchDomainGetMaxMemory (struct qemud_client *client,
remote_message_header *req,
remote_domain_get_max_memory_args *args,
remote_domain_get_max_memory_ret *ret)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
ret->memory = virDomainGetMaxMemory (dom);
if (ret->memory == 0) return -1;
return 0;
}
static int
remoteDispatchDomainGetMaxVcpus (struct qemud_client *client,
remote_message_header *req,
remote_domain_get_max_vcpus_args *args,
remote_domain_get_max_vcpus_ret *ret)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
ret->num = virDomainGetMaxVcpus (dom);
if (ret->num == -1) return -1;
return 0;
}
static int
remoteDispatchDomainGetOsType (struct qemud_client *client,
remote_message_header *req,
remote_domain_get_os_type_args *args,
remote_domain_get_os_type_ret *ret)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
/* remoteDispatchClientRequest will free this */
ret->type = virDomainGetOSType (dom);
if (ret->type == NULL) return -1;
return 0;
}
static int
remoteDispatchDomainGetVcpus (struct qemud_client *client,
remote_message_header *req,
remote_domain_get_vcpus_args *args,
remote_domain_get_vcpus_ret *ret)
{
virDomainPtr dom;
virVcpuInfoPtr info;
unsigned char *cpumaps;
int info_len, i;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (args->maxinfo > REMOTE_VCPUINFO_MAX) {
remoteDispatchError (client, req, "maxinfo > REMOTE_VCPUINFO_MAX");
return -2;
}
if (args->maplen > REMOTE_CPUMAPS_MAX) {
remoteDispatchError (client, req, "maplen > REMOTE_CPUMAPS_MAX");
return -2;
}
/* Allocate buffers to take the results. */
info = calloc (args->maxinfo, sizeof (virVcpuInfo));
cpumaps = calloc (args->maplen, sizeof (unsigned char));
info_len = virDomainGetVcpus (dom,
info, args->maxinfo,
cpumaps, args->maplen);
if (info_len == -1) return -1;
/* Allocate the return buffer for info. */
ret->info.info_len = info_len;
ret->info.info_val = calloc (info_len, sizeof (remote_vcpu_info));
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->maplen;
ret->cpumaps.cpumaps_val = (char *) cpumaps;
return 0;
}
static int
remoteDispatchListDefinedDomains (struct qemud_client *client,
remote_message_header *req,
remote_list_defined_domains_args *args,
remote_list_defined_domains_ret *ret)
{
CHECK_CONN(client);
if (args->maxnames > REMOTE_DOMAIN_NAME_LIST_MAX) {
remoteDispatchError (client, req,
"maxnames > REMOTE_DOMAIN_NAME_LIST_MAX");
return -2;
}
/* Allocate return buffer. */
ret->names.names_val = calloc (args->maxnames, sizeof (char *));
ret->names.names_len =
virConnectListDefinedDomains (client->conn,
ret->names.names_val, args->maxnames);
if (ret->names.names_len == -1) return -1;
return 0;
}
static int
remoteDispatchDomainLookupById (struct qemud_client *client,
remote_message_header *req,
remote_domain_lookup_by_id_args *args,
remote_domain_lookup_by_id_ret *ret)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = virDomainLookupByID (client->conn, args->id);
if (dom == NULL) return -1;
make_nonnull_domain (&ret->dom, dom);
return 0;
}
static int
remoteDispatchDomainLookupByName (struct qemud_client *client,
remote_message_header *req,
remote_domain_lookup_by_name_args *args,
remote_domain_lookup_by_name_ret *ret)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = virDomainLookupByName (client->conn, args->name);
if (dom == NULL) return -1;
make_nonnull_domain (&ret->dom, dom);
return 0;
}
static int
remoteDispatchDomainLookupByUuid (struct qemud_client *client,
remote_message_header *req,
remote_domain_lookup_by_uuid_args *args,
remote_domain_lookup_by_uuid_ret *ret)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = virDomainLookupByUUID (client->conn, (unsigned char *) args->uuid);
if (dom == NULL) return -1;
make_nonnull_domain (&ret->dom, dom);
return 0;
}
static int
remoteDispatchNumOfDefinedDomains (struct qemud_client *client,
remote_message_header *req,
void *args ATTRIBUTE_UNUSED,
remote_num_of_defined_domains_ret *ret)
{
CHECK_CONN(client);
ret->num = virConnectNumOfDefinedDomains (client->conn);
if (ret->num == -1) return -1;
return 0;
}
static int
remoteDispatchDomainPinVcpu (struct qemud_client *client,
remote_message_header *req,
remote_domain_pin_vcpu_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
int rv;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (args->cpumap.cpumap_len > REMOTE_CPUMAP_MAX) {
remoteDispatchError (client, req, "cpumap_len > REMOTE_CPUMAP_MAX");
return -2;
}
rv = virDomainPinVcpu (dom, args->vcpu,
(unsigned char *) args->cpumap.cpumap_val,
args->cpumap.cpumap_len);
if (rv == -1) return -1;
return 0;
}
static int
remoteDispatchDomainReboot (struct qemud_client *client,
remote_message_header *req,
remote_domain_reboot_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainReboot (dom, args->flags) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainRestore (struct qemud_client *client,
remote_message_header *req,
remote_domain_restore_args *args,
void *ret ATTRIBUTE_UNUSED)
{
CHECK_CONN(client);
if (virDomainRestore (client->conn, args->from) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainResume (struct qemud_client *client,
remote_message_header *req,
remote_domain_resume_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainResume (dom) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainSave (struct qemud_client *client,
remote_message_header *req,
remote_domain_save_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainSave (dom, args->to) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainCoreDump (struct qemud_client *client,
remote_message_header *req,
remote_domain_core_dump_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainCoreDump (dom, args->to, args->flags) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainSetAutostart (struct qemud_client *client,
remote_message_header *req,
remote_domain_set_autostart_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainSetAutostart (dom, args->autostart) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainSetMaxMemory (struct qemud_client *client,
remote_message_header *req,
remote_domain_set_max_memory_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainSetMaxMemory (dom, args->memory) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainSetMemory (struct qemud_client *client,
remote_message_header *req,
remote_domain_set_memory_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainSetMemory (dom, args->memory) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainSetVcpus (struct qemud_client *client,
remote_message_header *req,
remote_domain_set_vcpus_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainSetVcpus (dom, args->nvcpus) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainShutdown (struct qemud_client *client,
remote_message_header *req,
remote_domain_shutdown_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainShutdown (dom) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainSuspend (struct qemud_client *client,
remote_message_header *req,
remote_domain_suspend_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainSuspend (dom) == -1)
return -1;
return 0;
}
static int
remoteDispatchDomainUndefine (struct qemud_client *client,
remote_message_header *req,
remote_domain_undefine_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
if (virDomainUndefine (dom) == -1)
return -1;
return 0;
}
static int
remoteDispatchListDefinedNetworks (struct qemud_client *client,
remote_message_header *req,
remote_list_defined_networks_args *args,
remote_list_defined_networks_ret *ret)
{
CHECK_CONN(client);
if (args->maxnames > REMOTE_NETWORK_NAME_LIST_MAX) {
remoteDispatchError (client, req,
"maxnames > REMOTE_NETWORK_NAME_LIST_MAX");
return -2;
}
/* Allocate return buffer. */
ret->names.names_val = calloc (args->maxnames, sizeof (char *));
ret->names.names_len =
virConnectListDefinedNetworks (client->conn,
ret->names.names_val, args->maxnames);
if (ret->names.names_len == -1) return -1;
return 0;
}
static int
remoteDispatchListDomains (struct qemud_client *client,
remote_message_header *req,
remote_list_domains_args *args,
remote_list_domains_ret *ret)
{
CHECK_CONN(client);
if (args->maxids > REMOTE_DOMAIN_ID_LIST_MAX) {
remoteDispatchError (client, req,
"maxids > REMOTE_DOMAIN_ID_LIST_MAX");
return -2;
}
/* Allocate return buffer. */
ret->ids.ids_val = calloc (args->maxids, sizeof (int));
ret->ids.ids_len = virConnectListDomains (client->conn,
ret->ids.ids_val, args->maxids);
if (ret->ids.ids_len == -1) return -1;
return 0;
}
static int
remoteDispatchListNetworks (struct qemud_client *client,
remote_message_header *req,
remote_list_networks_args *args,
remote_list_networks_ret *ret)
{
CHECK_CONN(client);
if (args->maxnames > REMOTE_NETWORK_NAME_LIST_MAX) {
remoteDispatchError (client, req,
"maxnames > REMOTE_NETWORK_NAME_LIST_MAX");
return -2;
}
/* Allocate return buffer. */
ret->names.names_val = calloc (args->maxnames, sizeof (char *));
ret->names.names_len =
virConnectListNetworks (client->conn,
ret->names.names_val, args->maxnames);
if (ret->names.names_len == -1) return -1;
return 0;
}
static int
remoteDispatchNetworkCreate (struct qemud_client *client,
remote_message_header *req,
remote_network_create_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virNetworkPtr net;
CHECK_CONN(client);
net = get_nonnull_network (client->conn, args->net);
if (net == NULL) {
remoteDispatchError (client, req, "network not found");
return -2;
}
if (virNetworkCreate (net) == -1)
return -1;
return 0;
}
static int
remoteDispatchNetworkCreateXml (struct qemud_client *client,
remote_message_header *req,
remote_network_create_xml_args *args,
remote_network_create_xml_ret *ret)
{
virNetworkPtr net;
CHECK_CONN(client);
net = virNetworkCreateXML (client->conn, args->xml);
if (net == NULL) return -1;
make_nonnull_network (&ret->net, net);
return 0;
}
static int
remoteDispatchNetworkDefineXml (struct qemud_client *client,
remote_message_header *req,
remote_network_define_xml_args *args,
remote_network_define_xml_ret *ret)
{
virNetworkPtr net;
CHECK_CONN(client);
net = virNetworkDefineXML (client->conn, args->xml);
if (net == NULL) return -1;
make_nonnull_network (&ret->net, net);
return 0;
}
static int
remoteDispatchNetworkDestroy (struct qemud_client *client,
remote_message_header *req,
remote_network_destroy_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virNetworkPtr net;
CHECK_CONN(client);
net = get_nonnull_network (client->conn, args->net);
if (net == NULL) {
remoteDispatchError (client, req, "network not found");
return -2;
}
if (virNetworkDestroy (net) == -1)
return -1;
return 0;
}
static int
remoteDispatchNetworkDumpXml (struct qemud_client *client,
remote_message_header *req,
remote_network_dump_xml_args *args,
remote_network_dump_xml_ret *ret)
{
virNetworkPtr net;
CHECK_CONN(client);
net = get_nonnull_network (client->conn, args->net);
if (net == NULL) {
remoteDispatchError (client, req, "network not found");
return -2;
}
/* remoteDispatchClientRequest will free this. */
ret->xml = virNetworkGetXMLDesc (net, args->flags);
if (!ret->xml) return -1;
return 0;
}
static int
remoteDispatchNetworkGetAutostart (struct qemud_client *client,
remote_message_header *req,
remote_network_get_autostart_args *args,
remote_network_get_autostart_ret *ret)
{
virNetworkPtr net;
CHECK_CONN(client);
net = get_nonnull_network (client->conn, args->net);
if (net == NULL) {
remoteDispatchError (client, req, "network not found");
return -2;
}
if (virNetworkGetAutostart (net, &ret->autostart) == -1)
return -1;
return 0;
}
static int
remoteDispatchNetworkGetBridgeName (struct qemud_client *client,
remote_message_header *req,
remote_network_get_bridge_name_args *args,
remote_network_get_bridge_name_ret *ret)
{
virNetworkPtr net;
CHECK_CONN(client);
net = get_nonnull_network (client->conn, args->net);
if (net == NULL) {
remoteDispatchError (client, req, "network not found");
return -2;
}
/* remoteDispatchClientRequest will free this. */
ret->name = virNetworkGetBridgeName (net);
if (!ret->name) return -1;
return 0;
}
static int
remoteDispatchNetworkLookupByName (struct qemud_client *client,
remote_message_header *req,
remote_network_lookup_by_name_args *args,
remote_network_lookup_by_name_ret *ret)
{
virNetworkPtr net;
CHECK_CONN(client);
net = virNetworkLookupByName (client->conn, args->name);
if (net == NULL) return -1;
make_nonnull_network (&ret->net, net);
return 0;
}
static int
remoteDispatchNetworkLookupByUuid (struct qemud_client *client,
remote_message_header *req,
remote_network_lookup_by_uuid_args *args,
remote_network_lookup_by_uuid_ret *ret)
{
virNetworkPtr net;
CHECK_CONN(client);
net = virNetworkLookupByUUID (client->conn, (unsigned char *) args->uuid);
if (net == NULL) return -1;
make_nonnull_network (&ret->net, net);
return 0;
}
static int
remoteDispatchNetworkSetAutostart (struct qemud_client *client,
remote_message_header *req,
remote_network_set_autostart_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virNetworkPtr net;
CHECK_CONN(client);
net = get_nonnull_network (client->conn, args->net);
if (net == NULL) {
remoteDispatchError (client, req, "network not found");
return -2;
}
if (virNetworkSetAutostart (net, args->autostart) == -1)
return -1;
return 0;
}
static int
remoteDispatchNetworkUndefine (struct qemud_client *client,
remote_message_header *req,
remote_network_undefine_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virNetworkPtr net;
CHECK_CONN(client);
net = get_nonnull_network (client->conn, args->net);
if (net == NULL) {
remoteDispatchError (client, req, "network not found");
return -2;
}
if (virNetworkUndefine (net) == -1)
return -1;
return 0;
}
static int
remoteDispatchNumOfDefinedNetworks (struct qemud_client *client,
remote_message_header *req,
void *args ATTRIBUTE_UNUSED,
remote_num_of_defined_networks_ret *ret)
{
CHECK_CONN(client);
ret->num = virConnectNumOfDefinedNetworks (client->conn);
if (ret->num == -1) return -1;
return 0;
}
static int
remoteDispatchNumOfDomains (struct qemud_client *client,
remote_message_header *req,
void *args ATTRIBUTE_UNUSED,
remote_num_of_domains_ret *ret)
{
CHECK_CONN(client);
ret->num = virConnectNumOfDomains (client->conn);
if (ret->num == -1) return -1;
return 0;
}
static int
remoteDispatchNumOfNetworks (struct qemud_client *client,
remote_message_header *req,
void *args ATTRIBUTE_UNUSED,
remote_num_of_networks_ret *ret)
{
CHECK_CONN(client);
ret->num = virConnectNumOfNetworks (client->conn);
if (ret->num == -1) return -1;
return 0;
}
/*----- 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);
}
/* 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);
}
/*
* Local variables:
* indent-tabs-mode: nil
* c-indent-level: 4
* c-basic-offset: 4
* tab-width: 4
* End:
*/
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