[libvirt] [PATCH 3/6] Add virDomain{S, G}etInterfaceparameters support to the remote driver

* daemon/remote.c: implement the server side support * src/remote/remote_driver.c: implement the client side support * src/remote/remote_protocol.x: definitions for the mew entry points * src/remote_protocol-structs: structure definitions --- daemon/remote.c | 64 ++++++++++++++++++++++++++++++++++++++++++ src/remote/remote_driver.c | 52 ++++++++++++++++++++++++++++++++++ src/remote/remote_protocol.x | 28 +++++++++++++++++- src/remote_protocol-structs | 24 +++++++++++++++ 4 files changed, 167 insertions(+), 1 deletions(-) diff --git a/daemon/remote.c b/daemon/remote.c index e1d208c..e38b6b6 100644 --- a/daemon/remote.c +++ b/daemon/remote.c @@ -3374,6 +3374,70 @@ cleanup: return rv; } +static int +remoteDispatchDomainGetInterfaceParameters(virNetServerPtr server ATTRIBUTE_UNUSED, + virNetServerClientPtr client ATTRIBUTE_UNUSED, + virNetMessagePtr msg ATTRIBUTE_UNUSED, + virNetMessageErrorPtr rerr, + remote_domain_get_interface_parameters_args *args, + remote_domain_get_interface_parameters_ret *ret) +{ + virDomainPtr dom = NULL; + virTypedParameterPtr params = NULL; + const char *device = args->device; + int nparams = args->nparams; + unsigned int flags; + int rv = -1; + struct daemonClientPrivate *priv = + virNetServerClientGetPrivateData(client); + + if (!priv->conn) { + virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open")); + goto cleanup; + } + + flags = args->flags; + + if (nparams > REMOTE_DOMAIN_INTERFACE_PARAMETERS_MAX) { + virNetError(VIR_ERR_INTERNAL_ERROR, "%s", _("nparams too large")); + goto cleanup; + } + if (VIR_ALLOC_N(params, nparams) < 0) { + virReportOOMError(); + goto cleanup; + } + + if (!(dom = get_nonnull_domain(priv->conn, args->dom))) + goto cleanup; + + if (virDomainGetInterfaceParameters(dom, device, params, &nparams, flags) < 0) + goto cleanup; + + /* In this case, we need to send back the number of parameters + * supported + */ + if (args->nparams == 0) { + ret->nparams = nparams; + goto success; + } + + if (remoteSerializeTypedParameters(params, nparams, + &ret->params.params_val, + &ret->params.params_len, + flags) < 0) + goto cleanup; + +success: + rv = 0; + +cleanup: + if (rv < 0) + virNetMessageSaveError(rerr); + if (dom) + virDomainFree(dom); + VIR_FREE(params); + return rv; +} /*----- Helpers. -----*/ diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c index ff2d4b4..3dc1a53 100644 --- a/src/remote/remote_driver.c +++ b/src/remote/remote_driver.c @@ -4394,6 +4394,56 @@ remoteDomainEventQueueFlush(int timer ATTRIBUTE_UNUSED, void *opaque) remoteDriverUnlock(priv); } +static int +remoteDomainGetInterfaceParameters (virDomainPtr domain, + const char *device, + virTypedParameterPtr params, int *nparams, + unsigned int flags) +{ + int rv = -1; + remote_domain_get_interface_parameters_args args; + remote_domain_get_interface_parameters_ret ret; + struct private_data *priv = domain->conn->privateData; + + remoteDriverLock(priv); + + make_nonnull_domain (&args.dom, domain); + args.device = (char *)device; + args.nparams = *nparams; + args.flags = flags; + + memset (&ret, 0, sizeof ret); + if (call (domain->conn, priv, 0, REMOTE_PROC_DOMAIN_GET_INTERFACE_PARAMETERS, + (xdrproc_t) xdr_remote_domain_get_interface_parameters_args, (char *) &args, + (xdrproc_t) xdr_remote_domain_get_interface_parameters_ret, (char *) &ret) == -1) + goto done; + + /* Handle the case when the caller does not know the number of parameters + * and is asking for the number of parameters supported + */ + if (*nparams == 0) { + *nparams = ret.nparams; + rv = 0; + goto cleanup; + } + + if (remoteDeserializeTypedParameters(ret.params.params_val, + ret.params.params_len, + REMOTE_DOMAIN_INTERFACE_PARAMETERS_MAX, + params, + nparams) < 0) + goto cleanup; + + rv = 0; + +cleanup: + xdr_free ((xdrproc_t) xdr_remote_domain_get_interface_parameters_ret, + (char *) &ret); +done: + remoteDriverUnlock(priv); + return rv; +} + static void remoteDomainEventQueue(struct private_data *priv, virDomainEventPtr event) { @@ -4617,6 +4667,8 @@ static virDriver remote_driver = { .domainBlockStats = remoteDomainBlockStats, /* 0.3.2 */ .domainBlockStatsFlags = remoteDomainBlockStatsFlags, /* 0.9.5 */ .domainInterfaceStats = remoteDomainInterfaceStats, /* 0.3.2 */ + .domainSetInterfaceParameters = remoteDomainSetInterfaceParameters, /* 0.9.9 */ + .domainGetInterfaceParameters = remoteDomainGetInterfaceParameters, /* 0.9.9 */ .domainMemoryStats = remoteDomainMemoryStats, /* 0.7.5 */ .domainBlockPeek = remoteDomainBlockPeek, /* 0.4.2 */ .domainMemoryPeek = remoteDomainMemoryPeek, /* 0.4.2 */ diff --git a/src/remote/remote_protocol.x b/src/remote/remote_protocol.x index 509a20b..5dc09ab 100644 --- a/src/remote/remote_protocol.x +++ b/src/remote/remote_protocol.x @@ -199,6 +199,11 @@ const REMOTE_CPU_BASELINE_MAX = 256; */ const REMOTE_DOMAIN_SEND_KEY_MAX = 16; +/* + * Upper limit on list of interface parameters + */ +const REMOTE_DOMAIN_INTERFACE_PARAMETERS_MAX = 16; + /* UUID. VIR_UUID_BUFLEN definition comes from libvirt.h */ typedef opaque remote_uuid[VIR_UUID_BUFLEN]; @@ -588,6 +593,25 @@ struct remote_domain_interface_stats_ret { /* insert@2 */ hyper tx_drop; }; +struct remote_domain_set_interface_parameters_args { + remote_nonnull_domain dom; + remote_nonnull_string device; + remote_typed_param params<REMOTE_DOMAIN_INTERFACE_PARAMETERS_MAX>; + unsigned int flags; +}; + +struct remote_domain_get_interface_parameters_args { + remote_nonnull_domain dom; + remote_nonnull_string device; + int nparams; + unsigned int flags; +}; + +struct remote_domain_get_interface_parameters_ret { + remote_typed_param params<REMOTE_DOMAIN_INTERFACE_PARAMETERS_MAX>; + int nparams; +}; + struct remote_domain_memory_stats_args { remote_nonnull_domain dom; unsigned int maxStats; @@ -2605,7 +2629,9 @@ enum remote_procedure { REMOTE_PROC_DOMAIN_BLOCK_RESIZE = 251, /* autogen autogen */ REMOTE_PROC_DOMAIN_SET_BLOCK_IO_TUNE = 252, /* autogen autogen */ - REMOTE_PROC_DOMAIN_GET_BLOCK_IO_TUNE = 253 /* skipgen skipgen */ + REMOTE_PROC_DOMAIN_GET_BLOCK_IO_TUNE = 253, /* skipgen skipgen */ + REMOTE_PROC_DOMAIN_SET_INTERFACE_PARAMETERS = 254, /* autogen autogen */ + REMOTE_PROC_DOMAIN_GET_INTERFACE_PARAMETERS = 255 /* 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 a9d4296..066fcd9 100644 --- a/src/remote_protocol-structs +++ b/src/remote_protocol-structs @@ -308,6 +308,28 @@ struct remote_domain_interface_stats_ret { int64_t tx_errs; int64_t tx_drop; }; +struct remote_domain_set_interface_parameters_args { + remote_nonnull_domain dom; + remote_nonnull_string device; + struct { + u_int params_len; + remote_typed_param * params_val; + } params; + u_int flags; +}; +struct remote_domain_get_interface_parameters_args { + remote_nonnull_domain dom; + remote_nonnull_string device; + int nparams; + u_int flags; +}; +struct remote_domain_get_interface_parameters_ret { + struct { + u_int params_len; + remote_typed_param * params_val; + } params; + int nparams; +}; struct remote_domain_memory_stats_args { remote_nonnull_domain dom; u_int maxStats; @@ -2044,4 +2066,6 @@ enum remote_procedure { REMOTE_PROC_DOMAIN_BLOCK_RESIZE = 251, REMOTE_PROC_DOMAIN_SET_BLOCK_IO_TUNE = 252, REMOTE_PROC_DOMAIN_GET_BLOCK_IO_TUNE = 253, + REMOTE_PROC_DOMAIN_SET_INTERFACE_PARAMETERS = 254, + REMOTE_PROC_DOMAIN_GET_INTERFACE_PARAMETERS = 255, }; -- 1.7.3.1