+Wed Nov 14 11:36:00 UTC 2007 Richard W.M. Jones <rjones@redhat.com>
+
+ * src/libvirt.c and all internal driver interfaces: Parse the
+ URI only once and pass it to virDrvOpen instead of the
+ unparsed name string.
+
Wed Nov 14 11:34:35 CET 2007 Jim Meyering <meyering@redhat.com>
Parse integers more carefully, cont'd.
#include "libvirt/libvirt.h"
#include "libvirt/virterror.h"
+#include <libxml/uri.h>
+
#ifdef __cplusplus
extern "C" {
#endif
typedef virDrvOpenStatus
(*virDrvOpen) (virConnectPtr conn,
- const char *name,
+ xmlURIPtr uri,
int flags);
typedef int
(*virDrvClose) (virConnectPtr conn);
virHashTablePtr domains;/* hash table for known domains */
virHashTablePtr networks;/* hash table for known domains */
int flags; /* a set of connection flags */
+ char *name; /* connection URI */
};
/**
#include <libxml/parser.h>
#include <libxml/xpath.h>
+#include <libxml/uri.h>
#include "internal.h"
#include "driver.h"
{
int i, res;
virConnectPtr ret = NULL;
+ xmlURIPtr uri;
/* Convert NULL or "" to xen:/// for back compat */
if (!name || name[0] == '\0')
if (!strcasecmp(name, "xen"))
name = "xen:///";
+ /* Convert xen:// -> xen:/// because xmlParseURI cannot parse the
+ * former. This allows URIs such as xen://localhost to work.
+ */
+ if (STREQ (name, "xen://"))
+ name = "xen:///";
+
if (!initialized)
if (virInitialize() < 0)
return NULL;
ret = virGetConnect();
if (ret == NULL) {
virLibConnError(NULL, VIR_ERR_NO_MEMORY, _("allocating connection"));
+ return NULL;
+ }
+
+ uri = xmlParseURI (name);
+ if (!uri) {
+ virLibConnError (ret, VIR_ERR_INVALID_ARG,
+ _("could not parse connection URI"));
goto failed;
}
#ifdef ENABLE_DEBUG
- fprintf (stderr, "libvirt: do_open: proceeding with name=%s\n", name);
+ fprintf (stderr,
+ "libvirt: do_open: name \"%s\" to URI components:\n"
+ " scheme %s\n"
+ " opaque %s\n"
+ " authority %s\n"
+ " server %s\n"
+ " user %s\n"
+ " port %d\n"
+ " path %s\n",
+ name,
+ uri->scheme, uri->opaque, uri->authority, uri->server,
+ uri->user, uri->port, uri->path);
#endif
+ ret->name = strdup (name);
+ if (!ret->name) {
+ virLibConnError (ret, VIR_ERR_NO_MEMORY, "allocating conn->name");
+ goto failed;
+ }
+
for (i = 0; i < virDriverTabCount; i++) {
#ifdef ENABLE_DEBUG
fprintf (stderr, "libvirt: do_open: trying driver %d (%s) ...\n",
i, virDriverTab[i]->name);
#endif
- res = virDriverTab[i]->open (ret, name, flags);
+ res = virDriverTab[i]->open (ret, uri, flags);
#ifdef ENABLE_DEBUG
fprintf (stderr, "libvirt: do_open: driver %d %s returned %s\n",
i, virDriverTab[i]->name,
}
for (i = 0; i < virNetworkDriverTabCount; i++) {
- res = virNetworkDriverTab[i]->open (ret, name, flags);
+ res = virNetworkDriverTab[i]->open (ret, uri, flags);
#ifdef ENABLE_DEBUG
fprintf (stderr, "libvirt: do_open: network driver %d %s returned %s\n",
i, virNetworkDriverTab[i]->name,
ret->flags = VIR_CONNECT_RO;
}
+ xmlFreeURI (uri);
+
return ret;
failed:
+ if (ret->name) free (ret->name);
if (ret->driver) ret->driver->close (ret);
+ if (uri) xmlFreeURI(uri);
virFreeConnect(ret);
- return (NULL);
+ return NULL;
}
/**
conn->networkDriver->close (conn);
conn->driver->close (conn);
+ if (conn->name) free (conn->name);
+
if (virFreeConnect(conn) < 0)
return (-1);
return (0);
char *
virConnectGetURI (virConnectPtr conn)
{
+ char *name;
+
DEBUG("conn=%p", conn);
if (!VIR_IS_CONNECT(conn)) {
return NULL;
}
+ /* Drivers may override getURI, but if they don't then
+ * we provide a default implementation.
+ */
if (conn->driver->getURI)
return conn->driver->getURI (conn);
- virLibConnError (conn, VIR_ERR_NO_SUPPORT, __FUNCTION__);
- return NULL;
+ name = strdup (conn->name);
+ if (!name) {
+ virLibConnError (conn, VIR_ERR_NO_MEMORY, __FUNCTION__);
+ return NULL;
+ }
+ return name;
}
/**
static int debug = 0;
static int xenProxyClose(virConnectPtr conn);
-static int xenProxyOpen(virConnectPtr conn, const char *name, int flags);
+static int xenProxyOpen(virConnectPtr conn, xmlURIPtr uri, int flags);
static int xenProxyGetVersion(virConnectPtr conn, unsigned long *hvVer);
static int xenProxyNodeGetInfo(virConnectPtr conn, virNodeInfoPtr info);
static char *xenProxyGetCapabilities(virConnectPtr conn);
* Returns 0 in case of success, and -1 in case of failure
*/
int
-xenProxyOpen(virConnectPtr conn, const char *name ATTRIBUTE_UNUSED, int flags)
+xenProxyOpen(virConnectPtr conn, xmlURIPtr uri ATTRIBUTE_UNUSED, int flags)
{
virProxyPacket req;
int ret;
static virDrvOpenStatus qemudOpen(virConnectPtr conn,
- const char *name,
+ xmlURIPtr uri,
int flags ATTRIBUTE_UNUSED) {
- xmlURIPtr uri = NULL;
uid_t uid = getuid();
if (qemu_driver == NULL)
- return VIR_DRV_OPEN_DECLINED;
+ goto decline;
- uri = xmlParseURI(name);
if (uri == NULL || uri->scheme == NULL || uri->path == NULL)
goto decline;
conn->privateData = qemu_driver;
- xmlFreeURI(uri);
return VIR_DRV_OPEN_SUCCESS;
decline:
- if (uri != NULL)
- xmlFreeURI(uri);
return VIR_DRV_OPEN_DECLINED;
}
}
static virDrvOpenStatus qemudOpenNetwork(virConnectPtr conn,
- const char *name ATTRIBUTE_UNUSED,
+ xmlURIPtr uri ATTRIBUTE_UNUSED,
int flags ATTRIBUTE_UNUSED) {
if (!qemu_driver)
return VIR_DRV_OPEN_DECLINED;
qemudGetType, /* type */
qemudGetVersion, /* version */
qemudGetHostname, /* hostname */
- NULL, /* URI - never called because remote_internal.c answers this */
+ NULL, /* URI */
qemudGetMaxVCPUs, /* getMaxVcpus */
qemudGetNodeInfo, /* nodeGetInfo */
qemudGetCapabilities, /* getCapabilities */
gnutls_session_t session; /* GnuTLS session (if uses_tls != 0). */
char *type; /* Cached return from remoteType. */
int counter; /* Generates serial numbers for RPC. */
- char *uri; /* Original (remote) URI. */
int networkOnly; /* Only used for network API */
};
};
static int
-doRemoteOpen (virConnectPtr conn, struct private_data *priv, const char *uri_str, int flags)
+doRemoteOpen (virConnectPtr conn, struct private_data *priv,
+ xmlURIPtr uri, int flags)
{
- if (!uri_str) return VIR_DRV_OPEN_DECLINED;
-
- /* We have to parse the URL every time to discover whether
- * it contains a transport or remote server name. There's no
- * way to get around this.
- */
- xmlURIPtr uri = xmlParseURI (uri_str);
if (!uri || !uri->scheme)
return VIR_DRV_OPEN_DECLINED; /* Decline - not a URL. */
(xdrproc_t) xdr_void, (char *) NULL) == -1)
goto failed;
- /* Duplicate and save the uri_str. */
- priv->uri = strdup (uri_str);
- if (!priv->uri) {
- error (NULL, VIR_ERR_NO_MEMORY, "allocating priv->uri");
- goto failed;
- }
-
/* Successful. */
retcode = VIR_DRV_OPEN_SUCCESS;
}
/* Free up the URL and strings. */
- xmlFreeURI (uri);
if (name) free (name);
if (command) free (command);
if (sockname) free (sockname);
}
static int
-remoteOpen (virConnectPtr conn, const char *uri_str, int flags)
+remoteOpen (virConnectPtr conn, xmlURIPtr uri, int flags)
{
struct private_data *priv;
int ret, rflags = 0;
if (flags & VIR_DRV_OPEN_RO)
rflags |= VIR_DRV_OPEN_REMOTE_RO;
- if (uri_str) {
- if (STREQ (uri_str, "qemu:///system")) {
+ if (uri &&
+ uri->scheme && STREQ (uri->scheme, "qemu") &&
+ (!uri->server || STREQ (uri->server, "")) &&
+ uri->path) {
+ if (STREQ (uri->path, "/system")) {
rflags |= VIR_DRV_OPEN_REMOTE_UNIX;
- } else if (STREQ (uri_str, "qemu:///session")) {
+ } else if (STREQ (uri->path, "/session")) {
rflags |= VIR_DRV_OPEN_REMOTE_UNIX;
if (getuid() > 0) {
rflags |= VIR_DRV_OPEN_REMOTE_USER;
memset(priv, 0, sizeof(struct private_data));
priv->magic = DEAD;
priv->sock = -1;
- ret = doRemoteOpen(conn, priv, uri_str, rflags);
+ ret = doRemoteOpen(conn, priv, uri, rflags);
if (ret != VIR_DRV_OPEN_SUCCESS) {
conn->privateData = NULL;
free(priv);
/* See comment for remoteType. */
if (priv->type) free (priv->type);
- /* Free URI copy. */
- if (priv->uri) free (priv->uri);
-
/* Free private data. */
priv->magic = DEAD;
return ret.hostname;
}
-/* This call is unusual because it doesn't go over RPC. The
- * full URI is known (only) at the client end of the connection.
- */
-static char *
-remoteGetURI (virConnectPtr conn)
-{
- GET_PRIVATE (conn, NULL);
- char *str;
-
- str = strdup (priv->uri);
- if (str == NULL) {
- error (conn, VIR_ERR_SYSTEM_ERROR, strerror (errno));
- return NULL;
- }
- return str;
-}
-
static int
remoteGetMaxVcpus (virConnectPtr conn, const char *type)
{
static int
remoteNetworkOpen (virConnectPtr conn,
- const char *uri_str,
+ xmlURIPtr uri,
int flags)
{
if (inside_daemon)
memset(priv, 0, sizeof(struct private_data));
priv->magic = DEAD;
priv->sock = -1;
- ret = doRemoteOpen(conn, priv, uri_str, rflags);
+ ret = doRemoteOpen(conn, priv, uri, rflags);
if (ret != VIR_DRV_OPEN_SUCCESS) {
conn->networkPrivateData = NULL;
free(priv);
.type = remoteType,
.version = remoteVersion,
.getHostname = remoteGetHostname,
- .getURI = remoteGetURI,
.getMaxVcpus = remoteGetMaxVcpus,
.nodeGetInfo = remoteNodeGetInfo,
.getCapabilities = remoteGetCapabilities,
}
static int testOpen(virConnectPtr conn,
- const char *name,
+ xmlURIPtr uri,
int flags ATTRIBUTE_UNUSED)
{
- xmlURIPtr uri;
int ret;
- if (!name)
+ if (!uri)
return VIR_DRV_OPEN_DECLINED;
- uri = xmlParseURI(name);
- if (uri == NULL) {
+ if (!uri->scheme || strcmp(uri->scheme, "test") != 0)
return VIR_DRV_OPEN_DECLINED;
- }
-
- if (!uri->scheme || strcmp(uri->scheme, "test") != 0) {
- xmlFreeURI(uri);
- return VIR_DRV_OPEN_DECLINED;
- }
/* Remote driver should handle these. */
- if (uri->server) {
- xmlFreeURI(uri);
+ if (uri->server)
return VIR_DRV_OPEN_DECLINED;
- }
- if (uri->server) {
- xmlFreeURI(uri);
+ if (uri->server)
return VIR_DRV_OPEN_DECLINED;
- }
/* From this point on, the connection is for us. */
if (!uri->path
ret = testOpenFromFile(conn,
uri->path);
- xmlFreeURI(uri);
-
return (ret);
}
}
static virDrvOpenStatus testOpenNetwork(virConnectPtr conn,
- const char *name ATTRIBUTE_UNUSED,
+ xmlURIPtr uri ATTRIBUTE_UNUSED,
int flags ATTRIBUTE_UNUSED) {
if (STRNEQ(conn->driver->name, "Test"))
return VIR_DRV_OPEN_DECLINED;
*/
int
xenHypervisorOpen(virConnectPtr conn,
- const char *name ATTRIBUTE_UNUSED,
+ xmlURIPtr uri ATTRIBUTE_UNUSED,
int flags ATTRIBUTE_UNUSED)
{
int ret;
xenHypervisorDomainGetOSType (virDomainPtr dom);
int xenHypervisorOpen (virConnectPtr conn,
- const char *name,
+ xmlURIPtr uri,
int flags);
int xenHypervisorClose (virConnectPtr conn);
int xenHypervisorGetVersion (virConnectPtr conn,
*/
static int
-xenUnifiedOpen (virConnectPtr conn, const char *name, int flags)
+xenUnifiedOpen (virConnectPtr conn, xmlURIPtr uri, int flags)
{
int i, j;
xenUnifiedPrivatePtr priv;
- xmlURIPtr uri;
-
- uri = xmlParseURI(name);
- if (uri == NULL) {
- return VIR_DRV_OPEN_DECLINED;
- }
/* Refuse any scheme which isn't "xen://" or "http://". */
if (uri->scheme &&
strcasecmp(uri->scheme, "xen") != 0 &&
- strcasecmp(uri->scheme, "http") != 0) {
- xmlFreeURI(uri);
+ strcasecmp(uri->scheme, "http") != 0)
return VIR_DRV_OPEN_DECLINED;
- }
/* xmlParseURI will parse a naked string like "foo" as a URI with
* a NULL scheme. That's not useful for us because we want to only
* allow full pathnames (eg. ///var/lib/xen/xend-socket). Decline
* anything else.
*/
- if (!uri->scheme && name[0] != '/') {
- xmlFreeURI(uri);
+ if (!uri->scheme && (!uri->path || uri->path[0] != '/'))
return VIR_DRV_OPEN_DECLINED;
- }
/* Refuse any xen:// URI with a server specified - allow remote to do it */
- if (uri->scheme && strcasecmp(uri->scheme, "xen") == 0 && uri->server) {
- xmlFreeURI(uri);
+ if (uri->scheme && strcasecmp(uri->scheme, "xen") == 0 && uri->server)
return VIR_DRV_OPEN_DECLINED;
- }
-
- xmlFreeURI(uri);
/* Allocate per-connection private data. */
priv = calloc (1, sizeof *priv);
}
conn->privateData = priv;
- priv->name = strdup (name);
- if (!priv->name) {
- xenUnifiedError (NULL, VIR_ERR_NO_MEMORY, "allocating priv->name");
- free (priv);
- return VIR_DRV_OPEN_ERROR;
- }
-
priv->handle = -1;
priv->xendConfigVersion = -1;
priv->type = -1;
#ifdef ENABLE_DEBUG
fprintf (stderr, "libvirt: xenUnifiedOpen: trying Xen sub-driver %d\n", i);
#endif
- if (drivers[i]->open (conn, name, flags) == VIR_DRV_OPEN_SUCCESS)
+ if (drivers[i]->open (conn, uri, flags) == VIR_DRV_OPEN_SUCCESS)
priv->opened[i] = 1;
#ifdef ENABLE_DEBUG
fprintf (stderr, "libvirt: xenUnifiedOpen: Xen sub-driver %d open %s\n",
(getuid() == 0 || i == XEN_UNIFIED_PROXY_OFFSET)) {
for (j = 0; j < i; ++j)
if (priv->opened[j]) drivers[j]->close (conn);
- free (priv->name);
free (priv);
/* The assumption is that one of the underlying drivers
* has set virterror already.
if (priv->opened[i] && drivers[i]->close)
(void) drivers[i]->close (conn);
- free (priv->name);
free (conn->privateData);
conn->privateData = NULL;
return str;
}
-/* The name is recorded (canonicalised) in xenUnifiedOpen. */
-static char *
-xenUnifiedGetURI (virConnectPtr conn)
-{
- GET_PRIVATE(conn);
- char *str;
-
- str = strdup (priv->name);
- if (str == NULL) {
- xenUnifiedError (conn, VIR_ERR_SYSTEM_ERROR, strerror (errno));
- return NULL;
- }
- return str;
-}
-
static int
xenUnifiedGetMaxVcpus (virConnectPtr conn, const char *type)
{
.type = xenUnifiedType,
.version = xenUnifiedVersion,
.getHostname = xenUnifiedGetHostname,
- .getURI = xenUnifiedGetURI,
.getMaxVcpus = xenUnifiedGetMaxVcpus,
.nodeGetInfo = xenUnifiedNodeGetInfo,
.getCapabilities = xenUnifiedGetCapabilities,
* xen_unified.c.
*/
int opened[XEN_UNIFIED_NR_DRIVERS];
-
- /* Canonical URI. */
- char *name;
};
typedef struct _xenUnifiedPrivate *xenUnifiedPrivatePtr;
* Returns 0 in case of success, -1 in case of error.
*/
int
-xenDaemonOpen(virConnectPtr conn, const char *name,
+xenDaemonOpen(virConnectPtr conn, xmlURIPtr uri,
int flags ATTRIBUTE_UNUSED)
{
- xmlURIPtr uri = NULL;
int ret;
-
- /* If the name is just "xen" (it might originally have been NULL,
- * see xenUnifiedOpen) or any URI beginning with "xen:///" then
- * try default paths and methods to get to the xend socket.
+
+ /* Switch on the scheme, which we expect to be NULL (file),
+ * "http" or "xen".
*/
- if (strcasecmp (name, "xen") == 0 ||
- strncasecmp (name, "xen:///", 7) == 0) {
+ if (uri->scheme == NULL) {
+ /* It should be a file access */
+ if (uri->path == NULL) {
+ virXendError(NULL, VIR_ERR_NO_CONNECT, __FUNCTION__);
+ goto failed;
+ }
+ ret = xenDaemonOpen_unix(conn, uri->path);
+ if (ret < 0)
+ goto failed;
+
+ ret = xend_detect_config_version(conn);
+ if (ret == -1)
+ goto failed;
+ }
+ else if (STRCASEEQ (uri->scheme, "xen")) {
/*
* try first to open the unix socket
*/
ret = xend_detect_config_version(conn);
if (ret == -1)
goto failed;
- } else {
- /*
- * We were given a connection name, expected to be an URL
- */
- uri = xmlParseURI(name);
- if (uri == NULL) {
- virXendError(NULL, VIR_ERR_NO_CONNECT, name);
+ } else if (STRCASEEQ (uri->scheme, "http")) {
+ ret = xenDaemonOpen_tcp(conn, uri->server, uri->port);
+ if (ret < 0)
goto failed;
- }
-
- if (uri->scheme == NULL) {
- /* It should be a file access */
- if (uri->path == NULL) {
- virXendError(NULL, VIR_ERR_NO_CONNECT, name);
- goto failed;
- }
- ret = xenDaemonOpen_unix(conn, uri->path);
- if (ret < 0)
- goto failed;
-
- ret = xend_detect_config_version(conn);
- if (ret == -1)
- goto failed;
- } else if (!strcasecmp(uri->scheme, "http")) {
- ret = xenDaemonOpen_tcp(conn, uri->server, uri->port);
- if (ret < 0)
- goto failed;
- ret = xend_detect_config_version(conn);
- if (ret == -1)
- goto failed;
- } else {
- virXendError(NULL, VIR_ERR_NO_CONNECT, name);
+ ret = xend_detect_config_version(conn);
+ if (ret == -1)
goto failed;
- }
+ } else {
+ virXendError(NULL, VIR_ERR_NO_CONNECT, __FUNCTION__);
+ goto failed;
}
done:
- if (uri != NULL)
- xmlFreeURI(uri);
return(ret);
failed:
- if (uri != NULL)
- xmlFreeURI(uri);
return(-1);
}
char *xend_parse_domain_sexp(virConnectPtr conn, char *root, int xendConfigVersion);
/* refactored ones */
-int xenDaemonOpen(virConnectPtr conn, const char *name, int flags);
+int xenDaemonOpen(virConnectPtr conn, xmlURIPtr uri, int flags);
int xenDaemonClose(virConnectPtr conn);
int xenDaemonGetVersion(virConnectPtr conn, unsigned long *hvVer);
int xenDaemonNodeGetInfo(virConnectPtr conn, virNodeInfoPtr info);
*/
int
xenXMOpen (virConnectPtr conn ATTRIBUTE_UNUSED,
- const char *name ATTRIBUTE_UNUSED, int flags ATTRIBUTE_UNUSED)
+ xmlURIPtr uri ATTRIBUTE_UNUSED, int flags ATTRIBUTE_UNUSED)
{
if (configCache == NULL) {
configCache = virHashCreate(50);
extern struct xenUnifiedDriver xenXMDriver;
int xenXMInit (void);
-int xenXMOpen(virConnectPtr conn, const char *name, int flags);
+int xenXMOpen(virConnectPtr conn, xmlURIPtr uri, int flags);
int xenXMClose(virConnectPtr conn);
const char *xenXMGetType(virConnectPtr conn);
int xenXMDomainGetInfo(virDomainPtr domain, virDomainInfoPtr info);
*/
int
xenStoreOpen(virConnectPtr conn,
- const char *name ATTRIBUTE_UNUSED,
+ xmlURIPtr uri ATTRIBUTE_UNUSED,
int flags ATTRIBUTE_UNUSED)
{
xenUnifiedPrivatePtr priv = (xenUnifiedPrivatePtr) conn->privateData;
int xenStoreInit (void);
int xenStoreOpen (virConnectPtr conn,
- const char *name,
+ xmlURIPtr uri,
int flags);
int xenStoreClose (virConnectPtr conn);
int xenStoreGetDomainInfo (virDomainPtr domain,