[libvirt] [PATCH 8/8] Implement RPC driver support for virDomainOpenGraphics
Daniel P. Berrange
berrange at redhat.com
Tue Oct 25 16:03:48 UTC 2011
From: "Daniel P. Berrange" <berrange at redhat.com>
Since it needs to access file descriptors passed in the msg,
the RPC driver for virDomainOpenGraphics needs to be manually
implemented.
* daemon/remote.c: RPC server dispatcher
* src/remote/remote_driver.c: RPC client dispatcher
* src/remote/remote_protocol.x: Define protocol
---
daemon/remote.c | 43 ++++++++++++++++++++++++
src/remote/remote_driver.c | 73 +++++++++++++++++++++++++++++++++++------
src/remote/remote_protocol.x | 9 ++++-
src/remote_protocol-structs | 6 +++
4 files changed, 119 insertions(+), 12 deletions(-)
diff --git a/daemon/remote.c b/daemon/remote.c
index f0dd63f..f5141b9 100644
--- a/daemon/remote.c
+++ b/daemon/remote.c
@@ -44,6 +44,7 @@
#include "intprops.h"
#include "virnetserverservice.h"
#include "virnetserver.h"
+#include "virfile.h"
#include "remote_protocol.h"
#include "qemu_protocol.h"
@@ -3214,6 +3215,48 @@ cleanup:
}
+static int
+remoteDispatchDomainOpenGraphics(virNetServerPtr server ATTRIBUTE_UNUSED,
+ virNetServerClientPtr client ATTRIBUTE_UNUSED,
+ virNetMessagePtr msg,
+ virNetMessageErrorPtr rerr,
+ remote_domain_open_graphics_args *args)
+{
+ virDomainPtr dom = NULL;
+ int rv = -1;
+ int fd = -1;
+ struct daemonClientPrivate *priv =
+ virNetServerClientGetPrivateData(client);
+
+ if (!priv->conn) {
+ virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open"));
+ goto cleanup;
+ }
+
+ if (!(dom = get_nonnull_domain(priv->conn, args->dom)))
+ goto cleanup;
+
+ if ((fd = virNetMessageDupFD(msg, 0)) < 0)
+ goto cleanup;
+
+ if (virDomainOpenGraphics(dom,
+ args->idx,
+ fd,
+ args->flags) < 0)
+ goto cleanup;
+
+ rv = 0;
+
+cleanup:
+ VIR_FORCE_CLOSE(fd);
+ if (rv < 0)
+ virNetMessageSaveError(rerr);
+ if (dom)
+ virDomainFree(dom);
+ return rv;
+}
+
+
/*----- Helpers. -----*/
/* get_nonnull_domain and get_nonnull_network turn an on-wire
diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
index 382bb42..ea7fb24 100644
--- a/src/remote/remote_driver.c
+++ b/src/remote/remote_driver.c
@@ -103,10 +103,14 @@ static void remoteDriverUnlock(struct private_data *driver)
virMutexUnlock(&driver->lock);
}
-static int call (virConnectPtr conn, struct private_data *priv,
- unsigned int flags, int proc_nr,
- xdrproc_t args_filter, char *args,
- xdrproc_t ret_filter, char *ret);
+static int call(virConnectPtr conn, struct private_data *priv,
+ unsigned int flags, int proc_nr,
+ xdrproc_t args_filter, char *args,
+ xdrproc_t ret_filter, char *ret);
+static int callWithFD(virConnectPtr conn, struct private_data *priv,
+ unsigned int flags, int fd, int proc_nr,
+ xdrproc_t args_filter, char *args,
+ xdrproc_t ret_filter, char *ret);
static int remoteAuthenticate (virConnectPtr conn, struct private_data *priv,
virConnectAuthPtr auth, const char *authtype);
#if HAVE_SASL
@@ -4122,6 +4126,36 @@ done:
}
+static int
+remoteDomainOpenGraphics(virDomainPtr dom,
+ unsigned int idx,
+ int fd,
+ unsigned int flags)
+{
+ int rv = -1;
+ remote_domain_open_graphics_args args;
+ struct private_data *priv = dom->conn->privateData;
+
+ remoteDriverLock(priv);
+
+ make_nonnull_domain (&args.dom, dom);
+ args.idx = idx;
+ args.flags = flags;
+
+ if (callWithFD(dom->conn, priv, 0, fd, REMOTE_PROC_DOMAIN_OPEN_GRAPHICS,
+ (xdrproc_t) xdr_remote_domain_open_graphics_args, (char *) &args,
+ (xdrproc_t) xdr_void, NULL) == -1)
+ goto done;
+
+ rv = 0;
+
+done:
+ remoteDriverUnlock(priv);
+
+ return rv;
+}
+
+
#include "remote_client_bodies.h"
#include "qemu_client_bodies.h"
@@ -4130,17 +4164,20 @@ done:
* send that to the server and wait for reply
*/
static int
-call (virConnectPtr conn ATTRIBUTE_UNUSED,
- struct private_data *priv,
- unsigned int flags,
- int proc_nr,
- xdrproc_t args_filter, char *args,
- xdrproc_t ret_filter, char *ret)
+callWithFD(virConnectPtr conn ATTRIBUTE_UNUSED,
+ struct private_data *priv,
+ unsigned int flags,
+ int fd,
+ int proc_nr,
+ xdrproc_t args_filter, char *args,
+ xdrproc_t ret_filter, char *ret)
{
int rv;
virNetClientProgramPtr prog = flags & REMOTE_CALL_QEMU ? priv->qemuProgram : priv->remoteProgram;
int counter = priv->counter++;
virNetClientPtr client = priv->client;
+ int fds[] = { fd };
+ size_t nfds = fd == -1 ? 0 : 1;
priv->localUses++;
/* Unlock, so that if we get any async events/stream data
@@ -4152,7 +4189,7 @@ call (virConnectPtr conn ATTRIBUTE_UNUSED,
client,
counter,
proc_nr,
- 0, NULL, NULL, NULL,
+ nfds, nfds ? fds : NULL, NULL, NULL,
args_filter, args,
ret_filter, ret);
remoteDriverLock(priv);
@@ -4161,6 +4198,19 @@ call (virConnectPtr conn ATTRIBUTE_UNUSED,
return rv;
}
+static int
+call (virConnectPtr conn,
+ struct private_data *priv,
+ unsigned int flags,
+ int proc_nr,
+ xdrproc_t args_filter, char *args,
+ xdrproc_t ret_filter, char *ret)
+{
+ return callWithFD(conn, priv, flags, -1, proc_nr,
+ args_filter, args,
+ ret_filter, ret);
+}
+
static void remoteDomainEventDispatchFunc(virConnectPtr conn,
virDomainEventPtr event,
@@ -4463,6 +4513,7 @@ static virDriver remote_driver = {
.qemuDomainMonitorCommand = remoteQemuDomainMonitorCommand, /* 0.8.3 */
.qemuDomainAttach = qemuDomainAttach, /* 0.9.4 */
.domainOpenConsole = remoteDomainOpenConsole, /* 0.8.6 */
+ .domainOpenGraphics = remoteDomainOpenGraphics, /* 0.9.7 */
.domainInjectNMI = remoteDomainInjectNMI, /* 0.9.2 */
.domainMigrateBegin3 = remoteDomainMigrateBegin3, /* 0.9.2 */
.domainMigratePrepare3 = remoteDomainMigratePrepare3, /* 0.9.2 */
diff --git a/src/remote/remote_protocol.x b/src/remote/remote_protocol.x
index 47b8957..a174af8 100644
--- a/src/remote/remote_protocol.x
+++ b/src/remote/remote_protocol.x
@@ -2261,6 +2261,12 @@ struct remote_domain_get_control_info_ret { /* insert at 1 */
unsigned hyper stateTime;
};
+struct remote_domain_open_graphics_args {
+ remote_nonnull_domain dom;
+ unsigned int idx;
+ unsigned int flags;
+};
+
/*----- Protocol. -----*/
/* Define the program number, protocol version and procedure numbers here. */
@@ -2555,7 +2561,8 @@ enum remote_procedure {
REMOTE_PROC_DOMAIN_RESET = 245, /* autogen autogen */
REMOTE_PROC_DOMAIN_SNAPSHOT_NUM_CHILDREN = 246, /* autogen autogen priority:high */
REMOTE_PROC_DOMAIN_SNAPSHOT_LIST_CHILDREN_NAMES = 247, /* autogen autogen priority:high */
- REMOTE_PROC_DOMAIN_EVENT_DISK_CHANGE = 248 /* skipgen skipgen */
+ REMOTE_PROC_DOMAIN_EVENT_DISK_CHANGE = 248, /* skipgen skipgen */
+ REMOTE_PROC_DOMAIN_OPEN_GRAPHICS = 249 /* skipgen skipgen */
/*
* Notice how the entries are grouped in sets of 10 ?
diff --git a/src/remote_protocol-structs b/src/remote_protocol-structs
index 569fcb3..12cedef 100644
--- a/src/remote_protocol-structs
+++ b/src/remote_protocol-structs
@@ -1750,6 +1750,11 @@ struct remote_domain_get_control_info_ret {
u_int details;
uint64_t stateTime;
};
+struct remote_domain_open_graphics_args {
+ remote_nonnull_domain dom;
+ u_int idx;
+ u_int flags;
+};
enum remote_procedure {
REMOTE_PROC_OPEN = 1,
REMOTE_PROC_CLOSE = 2,
@@ -1999,4 +2004,5 @@ enum remote_procedure {
REMOTE_PROC_DOMAIN_SNAPSHOT_NUM_CHILDREN = 246,
REMOTE_PROC_DOMAIN_SNAPSHOT_LIST_CHILDREN_NAMES = 247,
REMOTE_PROC_DOMAIN_EVENT_DISK_CHANGE = 248,
+ REMOTE_PROC_DOMAIN_OPEN_GRAPHICS = 249,
};
--
1.7.6.4
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