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libvirt/qemud/remote.c
Jim Meyering 49230350fa Use a variable name as sizeof argument, not a type name. 
Given code like: T *var = calloc (n, sizeof (T));
Convert to this: T *var = calloc (n, sizeof (*var));
This first-cut change adjusts all malloc, calloc, and
realloc statements.

The only binary differences are in remote_internal.c
(due to the bug fix) and in xmlrpc.c (due to factorization).

* python/libvir.c: As above.
* qemud/event.c: Likewise.
* qemud/mdns.c: Likewise.
* qemud/qemud.c: Likewise.
* qemud/remote.c: Likewise.
* src/bridge.c: Likewise.
* src/buf.c: Likewise.
* src/conf.c: Likewise.
* src/hash.c: Likewise.
* src/iptables.c: Likewise.
* src/openvz_conf.c: Likewise.
* src/qemu_conf.c: Likewise.
* src/qemu_driver.c: Likewise.
* src/test.c: Likewise.
* src/xen_internal.c: Likewise.
* src/xen_unified.c: Likewise.
* src/xm_internal.c: Likewise.
* src/xml.c: Likewise.
* tests/qemuxml2argvtest.c: Likewise.
* src/xmlrpc.c (xmlRpcValuePtr): Likewise, and minor factorization.
* src/remote_internal.c (remoteAuthMakeCredentials): Use the right
type when allocating space for an array of cred _pointers_.
2007-12-11 21:57:29 +00:00

2736 lines
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/*
* 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@redhat.com>
*/
#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 <fnmatch.h>
#ifdef HAVE_POLKIT
#include <polkit/polkit.h>
#include <polkit-dbus/polkit-dbus.h>
#endif
#include "libvirt/virterror.h"
#include "internal.h"
#include "../src/internal.h"
#define DEBUG 0
#define REMOTE_DEBUG(fmt,...) qemudDebug("REMOTE: " fmt, __VA_ARGS__)
static void remoteDispatchError (struct qemud_client *client,
remote_message_header *req,
const char *fmt, ...)
ATTRIBUTE_FORMAT(printf, 3, 4);
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_server *server,
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,
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, client->bufferLength, 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;
}
/* If client is marked as needing auth, don't allow any RPC ops,
* except for authentication ones
*/
if (client->auth) {
if (req.proc != REMOTE_PROC_AUTH_LIST &&
req.proc != REMOTE_PROC_AUTH_SASL_INIT &&
req.proc != REMOTE_PROC_AUTH_SASL_START &&
req.proc != REMOTE_PROC_AUTH_SASL_STEP &&
req.proc != REMOTE_PROC_AUTH_POLKIT
) {
remoteDispatchError (client, &req, "authentication required");
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 (server, 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;
}
/* An error occurred during the dispatching process itself (ie. not
* an error from the function being called). We return an error
* reply.
*/
static void
remoteDispatchSendError (struct qemud_client *client,
remote_message_header *req,
int code, const char *msg)
{
remote_message_header rep;
remote_error error;
XDR xdr;
int len;
/* 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 = code;
error.domain = VIR_FROM_REMOTE;
error.message = (char**)&msg;
error.level = VIR_ERR_ERROR;
error.dom = NULL;
error.str1 = (char**)&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;
}
static void
remoteDispatchFailAuth (struct qemud_client *client,
remote_message_header *req)
{
remoteDispatchSendError (client, req, VIR_ERR_AUTH_FAILED, "authentication failed");
}
static void
remoteDispatchError (struct qemud_client *client,
remote_message_header *req,
const char *fmt, ...)
{
va_list args;
char msgbuf[1024];
char *msg = msgbuf;
va_start (args, fmt);
vsnprintf (msgbuf, sizeof msgbuf, fmt, args);
va_end (args);
remoteDispatchSendError (client, req, VIR_ERR_RPC, msg);
}
/*----- Functions. -----*/
static int
remoteDispatchOpen (struct qemud_server *server ATTRIBUTE_UNUSED,
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_server *server ATTRIBUTE_UNUSED,
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
remoteDispatchSupportsFeature (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client, remote_message_header *req,
remote_supports_feature_args *args, remote_supports_feature_ret *ret)
{
CHECK_CONN(client);
ret->supported = __virDrvSupportsFeature (client->conn, args->feature);
if (ret->supported == -1) return -1;
return 0;
}
static int
remoteDispatchGetType (struct qemud_server *server ATTRIBUTE_UNUSED,
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_server *server ATTRIBUTE_UNUSED,
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
remoteDispatchGetHostname (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req,
void *args ATTRIBUTE_UNUSED,
remote_get_hostname_ret *ret)
{
char *hostname;
CHECK_CONN(client);
hostname = virConnectGetHostname (client->conn);
if (hostname == NULL) return -1;
ret->hostname = hostname;
return 0;
}
static int
remoteDispatchGetMaxVcpus (struct qemud_server *server ATTRIBUTE_UNUSED,
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_server *server ATTRIBUTE_UNUSED,
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_server *server ATTRIBUTE_UNUSED,
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
remoteDispatchDomainGetSchedulerType (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req,
remote_domain_get_scheduler_type_args *args,
remote_domain_get_scheduler_type_ret *ret)
{
virDomainPtr dom;
char *type;
int nparams;
CHECK_CONN(client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
type = virDomainGetSchedulerType (dom, &nparams);
if (type == NULL) {
virDomainFree(dom);
return -1;
}
ret->type = type;
ret->nparams = nparams;
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainGetSchedulerParameters (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req,
remote_domain_get_scheduler_parameters_args *args,
remote_domain_get_scheduler_parameters_ret *ret)
{
virDomainPtr dom;
virSchedParameterPtr params;
int i, r, nparams;
CHECK_CONN(client);
nparams = args->nparams;
if (nparams > REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX) {
remoteDispatchError (client, req, "nparams too large");
return -2;
}
params = malloc (sizeof (*params) * nparams);
if (params == NULL) {
remoteDispatchError (client, req, "out of memory allocating array");
return -2;
}
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
free (params);
remoteDispatchError (client, req, "domain not found");
return -2;
}
r = virDomainGetSchedulerParameters (dom, params, &nparams);
if (r == -1) {
virDomainFree(dom);
free (params);
return -1;
}
/* Serialise the scheduler parameters. */
ret->params.params_len = nparams;
ret->params.params_val = malloc (sizeof (*(ret->params.params_val))
* nparams);
if (ret->params.params_val == NULL) {
virDomainFree(dom);
free (params);
remoteDispatchError (client, req,
"out of memory allocating return array");
return -2;
}
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) {
virDomainFree(dom);
free (params);
remoteDispatchError (client, req,
"out of memory allocating return array");
return -2;
}
ret->params.params_val[i].value.type = params[i].type;
switch (params[i].type) {
case VIR_DOMAIN_SCHED_FIELD_INT:
ret->params.params_val[i].value.remote_sched_param_value_u.i = params[i].value.i; break;
case VIR_DOMAIN_SCHED_FIELD_UINT:
ret->params.params_val[i].value.remote_sched_param_value_u.ui = params[i].value.ui; break;
case VIR_DOMAIN_SCHED_FIELD_LLONG:
ret->params.params_val[i].value.remote_sched_param_value_u.l = params[i].value.l; break;
case VIR_DOMAIN_SCHED_FIELD_ULLONG:
ret->params.params_val[i].value.remote_sched_param_value_u.ul = params[i].value.ul; break;
case VIR_DOMAIN_SCHED_FIELD_DOUBLE:
ret->params.params_val[i].value.remote_sched_param_value_u.d = params[i].value.d; break;
case VIR_DOMAIN_SCHED_FIELD_BOOLEAN:
ret->params.params_val[i].value.remote_sched_param_value_u.b = params[i].value.b; break;
default:
virDomainFree(dom);
free (params);
remoteDispatchError (client, req, "unknown type");
return -2;
}
}
virDomainFree(dom);
free (params);
return 0;
}
static int
remoteDispatchDomainSetSchedulerParameters (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req,
remote_domain_set_scheduler_parameters_args *args,
void *ret ATTRIBUTE_UNUSED)
{
virDomainPtr dom;
int i, r, nparams;
virSchedParameterPtr params;
CHECK_CONN(client);
nparams = args->params.params_len;
if (nparams > REMOTE_DOMAIN_SCHEDULER_PARAMETERS_MAX) {
remoteDispatchError (client, req, "nparams too large");
return -2;
}
params = malloc (sizeof (*params) * nparams);
if (params == NULL) {
remoteDispatchError (client, req, "out of memory allocating array");
return -2;
}
/* Deserialise parameters. */
for (i = 0; i < nparams; ++i) {
strncpy (params[i].field, args->params.params_val[i].field,
VIR_DOMAIN_SCHED_FIELD_LENGTH);
params[i].field[VIR_DOMAIN_SCHED_FIELD_LENGTH-1] = '\0';
params[i].type = args->params.params_val[i].value.type;
switch (params[i].type) {
case VIR_DOMAIN_SCHED_FIELD_INT:
params[i].value.i = args->params.params_val[i].value.remote_sched_param_value_u.i; break;
case VIR_DOMAIN_SCHED_FIELD_UINT:
params[i].value.ui = args->params.params_val[i].value.remote_sched_param_value_u.ui; break;
case VIR_DOMAIN_SCHED_FIELD_LLONG:
params[i].value.l = args->params.params_val[i].value.remote_sched_param_value_u.l; break;
case VIR_DOMAIN_SCHED_FIELD_ULLONG:
params[i].value.ul = args->params.params_val[i].value.remote_sched_param_value_u.ul; break;
case VIR_DOMAIN_SCHED_FIELD_DOUBLE:
params[i].value.d = args->params.params_val[i].value.remote_sched_param_value_u.d; break;
case VIR_DOMAIN_SCHED_FIELD_BOOLEAN:
params[i].value.b = args->params.params_val[i].value.remote_sched_param_value_u.b; break;
}
}
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
free (params);
remoteDispatchError (client, req, "domain not found");
return -2;
}
r = virDomainSetSchedulerParameters (dom, params, nparams);
virDomainFree(dom);
free (params);
if (r == -1) return -1;
return 0;
}
static int
remoteDispatchDomainBlockStats (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req,
remote_domain_block_stats_args *args,
remote_domain_block_stats_ret *ret)
{
virDomainPtr dom;
char *path;
struct _virDomainBlockStats stats;
CHECK_CONN (client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
path = args->path;
if (virDomainBlockStats (dom, path, &stats, sizeof stats) == -1)
return -1;
ret->rd_req = stats.rd_req;
ret->rd_bytes = stats.rd_bytes;
ret->wr_req = stats.wr_req;
ret->wr_bytes = stats.wr_bytes;
ret->errs = stats.errs;
return 0;
}
static int
remoteDispatchDomainInterfaceStats (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req,
remote_domain_interface_stats_args *args,
remote_domain_interface_stats_ret *ret)
{
virDomainPtr dom;
char *path;
struct _virDomainInterfaceStats stats;
CHECK_CONN (client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
path = args->path;
if (virDomainInterfaceStats (dom, path, &stats, sizeof stats) == -1)
return -1;
ret->rx_bytes = stats.rx_bytes;
ret->rx_packets = stats.rx_packets;
ret->rx_errs = stats.rx_errs;
ret->rx_drop = stats.rx_drop;
ret->tx_bytes = stats.tx_bytes;
ret->tx_packets = stats.tx_packets;
ret->tx_errs = stats.tx_errs;
ret->tx_drop = stats.tx_drop;
return 0;
}
static int
remoteDispatchDomainAttachDevice (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainCreate (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainCreateLinux (struct qemud_server *server ATTRIBUTE_UNUSED,
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);
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainDefineXml (struct qemud_server *server ATTRIBUTE_UNUSED,
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);
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainDestroy (struct qemud_server *server ATTRIBUTE_UNUSED,
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;
/* No need to free dom - destroy does it for us */
return 0;
}
static int
remoteDispatchDomainDetachDevice (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainDumpXml (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainGetAutostart (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainGetInfo (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
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;
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainGetMaxMemory (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainGetMaxVcpus (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainGetOsType (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainGetVcpus (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
remoteDispatchError (client, req, "maxinfo > REMOTE_VCPUINFO_MAX");
return -2;
}
if (args->maxinfo * args->maplen > REMOTE_CPUMAPS_MAX) {
virDomainFree(dom);
remoteDispatchError (client, req, "maxinfo * maplen > REMOTE_CPUMAPS_MAX");
return -2;
}
/* Allocate buffers to take the results. */
info = calloc (args->maxinfo, sizeof (*info));
cpumaps = calloc (args->maxinfo * args->maplen, sizeof (*cpumaps));
info_len = virDomainGetVcpus (dom,
info, args->maxinfo,
cpumaps, args->maplen);
if (info_len == -1) {
virDomainFree(dom);
return -1;
}
/* Allocate the return buffer for info. */
ret->info.info_len = info_len;
ret->info.info_val = calloc (info_len, sizeof (*(ret->info.info_val)));
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;
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainMigratePrepare (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req,
remote_domain_migrate_prepare_args *args,
remote_domain_migrate_prepare_ret *ret)
{
int r;
char *cookie = NULL;
int cookielen = 0;
char *uri_in;
char **uri_out;
char *dname;
CHECK_CONN (client);
uri_in = args->uri_in == NULL ? NULL : *args->uri_in;
dname = args->dname == NULL ? NULL : *args->dname;
/* Wacky world of XDR ... */
uri_out = calloc (1, sizeof (*uri_out));
r = __virDomainMigratePrepare (client->conn, &cookie, &cookielen,
uri_in, uri_out,
args->flags, dname, args->resource);
if (r == -1) return -1;
/* 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;
return 0;
}
static int
remoteDispatchDomainMigratePerform (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req,
remote_domain_migrate_perform_args *args,
void *ret ATTRIBUTE_UNUSED)
{
int r;
virDomainPtr dom;
char *dname;
CHECK_CONN (client);
dom = get_nonnull_domain (client->conn, args->dom);
if (dom == NULL) {
remoteDispatchError (client, req, "domain not found");
return -2;
}
dname = args->dname == NULL ? NULL : *args->dname;
r = __virDomainMigratePerform (dom,
args->cookie.cookie_val,
args->cookie.cookie_len,
args->uri,
args->flags, dname, args->resource);
if (r == -1) return -1;
return 0;
}
static int
remoteDispatchDomainMigrateFinish (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req,
remote_domain_migrate_finish_args *args,
remote_domain_migrate_finish_ret *ret)
{
virDomainPtr ddom;
CHECK_CONN (client);
ddom = __virDomainMigrateFinish (client->conn, args->dname,
args->cookie.cookie_val,
args->cookie.cookie_len,
args->uri,
args->flags);
if (ddom == NULL) return -1;
make_nonnull_domain (&ret->ddom, ddom);
return 0;
}
static int
remoteDispatchListDefinedDomains (struct qemud_server *server ATTRIBUTE_UNUSED,
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 (*(ret->names.names_val)));
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_server *server ATTRIBUTE_UNUSED,
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);
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainLookupByName (struct qemud_server *server ATTRIBUTE_UNUSED,
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);
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainLookupByUuid (struct qemud_server *server ATTRIBUTE_UNUSED,
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);
virDomainFree(dom);
return 0;
}
static int
remoteDispatchNumOfDefinedDomains (struct qemud_server *server ATTRIBUTE_UNUSED,
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_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainReboot (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainRestore (struct qemud_server *server ATTRIBUTE_UNUSED,
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_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainSave (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainCoreDump (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainSetAutostart (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainSetMaxMemory (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainSetMemory (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainSetVcpus (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainShutdown (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainSuspend (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchDomainUndefine (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virDomainFree(dom);
return -1;
}
virDomainFree(dom);
return 0;
}
static int
remoteDispatchListDefinedNetworks (struct qemud_server *server ATTRIBUTE_UNUSED,
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 (*(ret->names.names_val)));
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_server *server ATTRIBUTE_UNUSED,
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 (*(ret->ids.ids_val)));
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_server *server ATTRIBUTE_UNUSED,
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 (*(ret->names.names_val)));
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_server *server ATTRIBUTE_UNUSED,
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) {
virNetworkFree(net);
return -1;
}
virNetworkFree(net);
return 0;
}
static int
remoteDispatchNetworkCreateXml (struct qemud_server *server ATTRIBUTE_UNUSED,
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);
virNetworkFree(net);
return 0;
}
static int
remoteDispatchNetworkDefineXml (struct qemud_server *server ATTRIBUTE_UNUSED,
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);
virNetworkFree(net);
return 0;
}
static int
remoteDispatchNetworkDestroy (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virNetworkFree(net);
return -1;
}
virNetworkFree(net);
return 0;
}
static int
remoteDispatchNetworkDumpXml (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virNetworkFree(net);
return -1;
}
virNetworkFree(net);
return 0;
}
static int
remoteDispatchNetworkGetAutostart (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virNetworkFree(net);
return -1;
}
virNetworkFree(net);
return 0;
}
static int
remoteDispatchNetworkGetBridgeName (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virNetworkFree(net);
return -1;
}
virNetworkFree(net);
return 0;
}
static int
remoteDispatchNetworkLookupByName (struct qemud_server *server ATTRIBUTE_UNUSED,
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);
virNetworkFree(net);
return 0;
}
static int
remoteDispatchNetworkLookupByUuid (struct qemud_server *server ATTRIBUTE_UNUSED,
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);
virNetworkFree(net);
return 0;
}
static int
remoteDispatchNetworkSetAutostart (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virNetworkFree(net);
return -1;
}
virNetworkFree(net);
return 0;
}
static int
remoteDispatchNetworkUndefine (struct qemud_server *server ATTRIBUTE_UNUSED,
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) {
virNetworkFree(net);
return -1;
}
virNetworkFree(net);
return 0;
}
static int
remoteDispatchNumOfDefinedNetworks (struct qemud_server *server ATTRIBUTE_UNUSED,
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_server *server ATTRIBUTE_UNUSED,
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_server *server ATTRIBUTE_UNUSED,
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;
}
static int
remoteDispatchAuthList (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req ATTRIBUTE_UNUSED,
void *args ATTRIBUTE_UNUSED,
remote_auth_list_ret *ret)
{
ret->types.types_len = 1;
if ((ret->types.types_val = calloc (ret->types.types_len, sizeof (*(ret->types.types_val)))) == NULL) {
remoteDispatchSendError(client, req, VIR_ERR_NO_MEMORY, "auth types");
return -2;
}
ret->types.types_val[0] = client->auth;
return 0;
}
#if HAVE_SASL
/*
* NB, keep in sync with similar method in src/remote_internal.c
*/
static char *addrToString(struct qemud_client *client,
remote_message_header *req,
struct sockaddr_storage *sa, socklen_t salen) {
char host[1024], port[20];
char *addr;
int err;
if ((err = getnameinfo((struct sockaddr *)sa, salen,
host, sizeof(host),
port, sizeof(port),
NI_NUMERICHOST | NI_NUMERICSERV)) != 0) {
remoteDispatchError(client, req,
"Cannot resolve address %d: %s", err, gai_strerror(err));
return NULL;
}
addr = malloc(strlen(host) + 1 + strlen(port) + 1);
if (!addr) {
remoteDispatchError(client, req, "cannot allocate address");
return NULL;
}
strcpy(addr, host);
strcat(addr, ";");
strcat(addr, port);
return addr;
}
/*
* Initializes the SASL session in prepare for authentication
* and gives the client a list of allowed mechansims to choose
*
* XXX callbacks for stuff like password verification ?
*/
static int
remoteDispatchAuthSaslInit (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req,
void *args ATTRIBUTE_UNUSED,
remote_auth_sasl_init_ret *ret)
{
const char *mechlist = NULL;
sasl_security_properties_t secprops;
int err;
struct sockaddr_storage sa;
socklen_t salen;
char *localAddr, *remoteAddr;
REMOTE_DEBUG("Initialize SASL auth %d", client->fd);
if (client->auth != REMOTE_AUTH_SASL ||
client->saslconn != NULL) {
qemudLog(QEMUD_ERR, "client tried invalid SASL init request");
remoteDispatchFailAuth(client, req);
return -2;
}
/* Get local address in form IPADDR:PORT */
salen = sizeof(sa);
if (getsockname(client->fd, (struct sockaddr*)&sa, &salen) < 0) {
remoteDispatchError(client, req, "failed to get sock address %d (%s)",
errno, strerror(errno));
return -2;
}
if ((localAddr = addrToString(client, req, &sa, salen)) == NULL) {
return -2;
}
/* Get remote address in form IPADDR:PORT */
salen = sizeof(sa);
if (getpeername(client->fd, (struct sockaddr*)&sa, &salen) < 0) {
remoteDispatchError(client, req, "failed to get peer address %d (%s)",
errno, strerror(errno));
free(localAddr);
return -2;
}
if ((remoteAddr = addrToString(client, req, &sa, salen)) == NULL) {
free(localAddr);
return -2;
}
err = sasl_server_new("libvirt",
NULL, /* FQDN - just delegates to gethostname */
NULL, /* User realm */
localAddr,
remoteAddr,
NULL, /* XXX Callbacks */
SASL_SUCCESS_DATA,
&client->saslconn);
free(localAddr);
free(remoteAddr);
if (err != SASL_OK) {
qemudLog(QEMUD_ERR, "sasl context setup failed %d (%s)",
err, sasl_errstring(err, NULL, NULL));
remoteDispatchFailAuth(client, req);
client->saslconn = NULL;
return -2;
}
/* 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))) {
qemudLog(QEMUD_ERR, "cannot TLS get cipher size");
remoteDispatchFailAuth(client, req);
sasl_dispose(&client->saslconn);
client->saslconn = NULL;
return -2;
}
ssf *= 8; /* tls key size is bytes, sasl wants bits */
err = sasl_setprop(client->saslconn, SASL_SSF_EXTERNAL, &ssf);
if (err != SASL_OK) {
qemudLog(QEMUD_ERR, "cannot set SASL external SSF %d (%s)",
err, sasl_errstring(err, NULL, NULL));
remoteDispatchFailAuth(client, req);
sasl_dispose(&client->saslconn);
client->saslconn = NULL;
return -2;
}
}
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) {
qemudLog(QEMUD_ERR, "cannot set SASL security props %d (%s)",
err, sasl_errstring(err, NULL, NULL));
remoteDispatchFailAuth(client, req);
sasl_dispose(&client->saslconn);
client->saslconn = NULL;
return -2;
}
err = sasl_listmech(client->saslconn,
NULL, /* Don't need to set user */
"", /* Prefix */
",", /* Separator */
"", /* Suffix */
&mechlist,
NULL,
NULL);
if (err != SASL_OK) {
qemudLog(QEMUD_ERR, "cannot list SASL mechanisms %d (%s)",
err, sasl_errdetail(client->saslconn));
remoteDispatchFailAuth(client, req);
sasl_dispose(&client->saslconn);
client->saslconn = NULL;
return -2;
}
REMOTE_DEBUG("Available mechanisms for client: '%s'", mechlist);
ret->mechlist = strdup(mechlist);
if (!ret->mechlist) {
qemudLog(QEMUD_ERR, "cannot allocate mechlist");
remoteDispatchFailAuth(client, req);
sasl_dispose(&client->saslconn);
client->saslconn = NULL;
return -2;
}
return 0;
}
/* We asked for an SSF layer, so sanity check that we actaully
* got what we asked for */
static int
remoteSASLCheckSSF (struct qemud_client *client,
remote_message_header *req) {
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) {
qemudLog(QEMUD_ERR, "cannot query SASL ssf on connection %d (%s)",
err, sasl_errstring(err, NULL, NULL));
remoteDispatchFailAuth(client, req);
sasl_dispose(&client->saslconn);
client->saslconn = NULL;
return -1;
}
ssf = *(const int *)val;
REMOTE_DEBUG("negotiated an SSF of %d", ssf);
if (ssf < 56) { /* 56 is good for Kerberos */
qemudLog(QEMUD_ERR, "negotiated SSF %d was not strong enough", ssf);
remoteDispatchFailAuth(client, req);
sasl_dispose(&client->saslconn);
client->saslconn = NULL;
return -1;
}
/* 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;
}
static int
remoteSASLCheckAccess (struct qemud_server *server,
struct qemud_client *client,
remote_message_header *req) {
const void *val;
int err;
char **wildcards;
err = sasl_getprop(client->saslconn, SASL_USERNAME, &val);
if (err != SASL_OK) {
qemudLog(QEMUD_ERR, "cannot query SASL username on connection %d (%s)",
err, sasl_errstring(err, NULL, NULL));
remoteDispatchFailAuth(client, req);
sasl_dispose(&client->saslconn);
client->saslconn = NULL;
return -1;
}
if (val == NULL) {
qemudLog(QEMUD_ERR, "no client username was found");
remoteDispatchFailAuth(client, req);
sasl_dispose(&client->saslconn);
client->saslconn = NULL;
return -1;
}
REMOTE_DEBUG("SASL client username %s", (const char *)val);
client->saslUsername = strdup((const char*)val);
if (client->saslUsername == NULL) {
qemudLog(QEMUD_ERR, "out of memory copying username");
remoteDispatchFailAuth(client, req);
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 */
qemudLog(QEMUD_ERR, "SASL client %s not allowed in whitelist", client->saslUsername);
remoteDispatchFailAuth(client, req);
sasl_dispose(&client->saslconn);
client->saslconn = NULL;
return -1;
}
/*
* This starts the SASL authentication negotiation.
*/
static int
remoteDispatchAuthSaslStart (struct qemud_server *server,
struct qemud_client *client,
remote_message_header *req,
remote_auth_sasl_start_args *args,
remote_auth_sasl_start_ret *ret)
{
const char *serverout;
unsigned int serveroutlen;
int err;
REMOTE_DEBUG("Start SASL auth %d", client->fd);
if (client->auth != REMOTE_AUTH_SASL ||
client->saslconn == NULL) {
qemudLog(QEMUD_ERR, "client tried invalid SASL start request");
remoteDispatchFailAuth(client, req);
return -2;
}
REMOTE_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) {
qemudLog(QEMUD_ERR, "sasl start failed %d (%s)",
err, sasl_errdetail(client->saslconn));
sasl_dispose(&client->saslconn);
client->saslconn = NULL;
remoteDispatchFailAuth(client, req);
return -2;
}
if (serveroutlen > REMOTE_AUTH_SASL_DATA_MAX) {
qemudLog(QEMUD_ERR, "sasl start reply data too long %d", serveroutlen);
sasl_dispose(&client->saslconn);
client->saslconn = NULL;
remoteDispatchFailAuth(client, req);
return -2;
}
/* NB, distinction of NULL vs "" is *critical* in SASL */
if (serverout) {
ret->data.data_val = malloc(serveroutlen);
if (!ret->data.data_val) {
remoteDispatchError (client, req, "out of memory allocating array");
return -2;
}
memcpy(ret->data.data_val, serverout, serveroutlen);
} else {
ret->data.data_val = NULL;
}
ret->nil = serverout ? 0 : 1;
ret->data.data_len = serveroutlen;
REMOTE_DEBUG("SASL return data %d bytes, nil; %d", ret->data.data_len, ret->nil);
if (err == SASL_CONTINUE) {
ret->complete = 0;
} else {
if (remoteSASLCheckSSF(client, req) < 0)
return -2;
/* Check username whitelist ACL */
if (remoteSASLCheckAccess(server, client, req) < 0)
return -2;
REMOTE_DEBUG("Authentication successful %d", client->fd);
ret->complete = 1;
client->auth = REMOTE_AUTH_NONE;
}
return 0;
}
static int
remoteDispatchAuthSaslStep (struct qemud_server *server,
struct qemud_client *client,
remote_message_header *req,
remote_auth_sasl_step_args *args,
remote_auth_sasl_step_ret *ret)
{
const char *serverout;
unsigned int serveroutlen;
int err;
REMOTE_DEBUG("Step SASL auth %d", client->fd);
if (client->auth != REMOTE_AUTH_SASL ||
client->saslconn == NULL) {
qemudLog(QEMUD_ERR, "client tried invalid SASL start request");
remoteDispatchFailAuth(client, req);
return -2;
}
REMOTE_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) {
qemudLog(QEMUD_ERR, "sasl step failed %d (%s)",
err, sasl_errdetail(client->saslconn));
sasl_dispose(&client->saslconn);
client->saslconn = NULL;
remoteDispatchFailAuth(client, req);
return -2;
}
if (serveroutlen > REMOTE_AUTH_SASL_DATA_MAX) {
qemudLog(QEMUD_ERR, "sasl step reply data too long %d", serveroutlen);
sasl_dispose(&client->saslconn);
client->saslconn = NULL;
remoteDispatchFailAuth(client, req);
return -2;
}
/* NB, distinction of NULL vs "" is *critical* in SASL */
if (serverout) {
ret->data.data_val = malloc(serveroutlen);
if (!ret->data.data_val) {
remoteDispatchError (client, req, "out of memory allocating array");
return -2;
}
memcpy(ret->data.data_val, serverout, serveroutlen);
} else {
ret->data.data_val = NULL;
}
ret->nil = serverout ? 0 : 1;
ret->data.data_len = serveroutlen;
REMOTE_DEBUG("SASL return data %d bytes, nil; %d", ret->data.data_len, ret->nil);
if (err == SASL_CONTINUE) {
ret->complete = 0;
} else {
if (remoteSASLCheckSSF(client, req) < 0)
return -2;
/* Check username whitelist ACL */
if (remoteSASLCheckAccess(server, client, req) < 0)
return -2;
REMOTE_DEBUG("Authentication successful %d", client->fd);
ret->complete = 1;
client->auth = REMOTE_AUTH_NONE;
}
return 0;
}
#else /* HAVE_SASL */
static int
remoteDispatchAuthSaslInit (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req,
void *args ATTRIBUTE_UNUSED,
remote_auth_sasl_init_ret *ret ATTRIBUTE_UNUSED)
{
qemudLog(QEMUD_ERR, "client tried unsupported SASL init request");
remoteDispatchFailAuth(client, req);
return -1;
}
static int
remoteDispatchAuthSaslStart (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req,
remote_auth_sasl_start_args *args ATTRIBUTE_UNUSED,
remote_auth_sasl_start_ret *ret ATTRIBUTE_UNUSED)
{
qemudLog(QEMUD_ERR, "client tried unsupported SASL start request");
remoteDispatchFailAuth(client, req);
return -1;
}
static int
remoteDispatchAuthSaslStep (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req,
remote_auth_sasl_step_args *args ATTRIBUTE_UNUSED,
remote_auth_sasl_step_ret *ret ATTRIBUTE_UNUSED)
{
qemudLog(QEMUD_ERR, "client tried unsupported SASL step request");
remoteDispatchFailAuth(client, req);
return -1;
}
#endif /* HAVE_SASL */
#if HAVE_POLKIT
static int qemudGetSocketIdentity(int fd, uid_t *uid, pid_t *pid) {
#ifdef SO_PEERCRED
struct ucred cr;
unsigned int cr_len = sizeof (cr);
if (getsockopt (fd, SOL_SOCKET, SO_PEERCRED, &cr, &cr_len) < 0) {
qemudLog(QEMUD_ERR, "Failed to verify client credentials: %s", strerror(errno));
return -1;
}
*pid = cr.pid;
*uid = cr.uid;
#else
/* XXX Many more OS support UNIX socket credentials we could port to. See dbus ....*/
#error "UNIX socket credentials not supported/implemented on this platform yet..."
#endif
return 0;
}
static int
remoteDispatchAuthPolkit (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req,
void *args ATTRIBUTE_UNUSED,
remote_auth_polkit_ret *ret)
{
pid_t callerPid;
uid_t callerUid;
REMOTE_DEBUG("Start PolicyKit auth %d", client->fd);
if (client->auth != REMOTE_AUTH_POLKIT) {
qemudLog(QEMUD_ERR, "client tried invalid PolicyKit init request");
remoteDispatchFailAuth(client, req);
return -2;
}
if (qemudGetSocketIdentity(client->fd, &callerUid, &callerPid) < 0) {
qemudLog(QEMUD_ERR, "cannot get peer socket identity");
remoteDispatchFailAuth(client, req);
return -2;
}
/* Only do policy checks for non-root - allow root user
through with no checks, as a fail-safe - root can easily
change policykit policy anyway, so its pointless trying
to restrict root */
if (callerUid == 0) {
qemudLog(QEMUD_INFO, "Allowing PID %d running as root", callerPid);
ret->complete = 1;
client->auth = REMOTE_AUTH_NONE;
} else {
PolKitCaller *pkcaller = NULL;
PolKitAction *pkaction = NULL;
PolKitContext *pkcontext = NULL;
PolKitError *pkerr;
PolKitResult pkresult;
DBusError err;
const char *action = client->readonly ?
"org.libvirt.unix.monitor" :
"org.libvirt.unix.manage";
qemudLog(QEMUD_INFO, "Checking PID %d running as %d", callerPid, callerUid);
dbus_error_init(&err);
if (!(pkcaller = polkit_caller_new_from_pid(server->sysbus, callerPid, &err))) {
qemudLog(QEMUD_ERR, "Failed to lookup policy kit caller: %s", err.message);
dbus_error_free(&err);
remoteDispatchFailAuth(client, req);
return -2;
}
if (!(pkaction = polkit_action_new())) {
qemudLog(QEMUD_ERR, "Failed to create polkit action %s\n", strerror(errno));
polkit_caller_unref(pkcaller);
remoteDispatchFailAuth(client, req);
return -2;
}
polkit_action_set_action_id(pkaction, action);
if (!(pkcontext = polkit_context_new()) ||
!polkit_context_init(pkcontext, &pkerr)) {
qemudLog(QEMUD_ERR, "Failed to create polkit context %s\n",
pkerr ? polkit_error_get_error_message(pkerr) : strerror(errno));
if (pkerr)
polkit_error_free(pkerr);
polkit_caller_unref(pkcaller);
polkit_action_unref(pkaction);
dbus_error_free(&err);
remoteDispatchFailAuth(client, req);
return -2;
}
pkresult = polkit_context_can_caller_do_action(pkcontext, pkaction, pkcaller);
polkit_context_unref(pkcontext);
polkit_caller_unref(pkcaller);
polkit_action_unref(pkaction);
if (pkresult != POLKIT_RESULT_YES) {
qemudLog(QEMUD_ERR, "Policy kit denied action %s from pid %d, uid %d, result: %s\n",
action, callerPid, callerUid, polkit_result_to_string_representation(pkresult));
remoteDispatchFailAuth(client, req);
return -2;
}
qemudLog(QEMUD_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;
}
return 0;
}
#else /* HAVE_POLKIT */
static int
remoteDispatchAuthPolkit (struct qemud_server *server ATTRIBUTE_UNUSED,
struct qemud_client *client,
remote_message_header *req,
void *args ATTRIBUTE_UNUSED,
remote_auth_polkit_ret *ret ATTRIBUTE_UNUSED)
{
qemudLog(QEMUD_ERR, "client tried unsupported PolicyKit init request");
remoteDispatchFailAuth(client, req);
return -1;
}
#endif /* HAVE_POLKIT */
/*----- 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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