[libvirt] [PATCH v3 1/2] Add VIR_TYPED_PARAM_STRING

This makes string can be transported between client and server. For compatibility, o new server should not send strings to old client if it doesn't see the flag VIR_DOMAIN_TYPED_STRING_OKAY. o new client that wants to be able to send/receive strings should always set the flag VIR_DOMAIN_TYPED_STRING_OKAY; if it is rejected by a old server that doesn't understand VIR_DOMAIN_TYPED_STRING_OKAY, then the client should have a second try with out flag VIR_DOMAIN_TYPED_STRING_OKAY to cope with an old server. Ideas of compatibility are coming from Eric, thanks. --- daemon/remote.c | 17 +++++++++++++++++ include/libvirt/libvirt.h.in | 5 ++++- src/remote/remote_driver.c | 17 +++++++++++++++++ src/remote/remote_protocol.x | 2 ++ src/remote_protocol-structs | 2 ++ 5 files changed, 42 insertions(+), 1 deletions(-) diff --git a/daemon/remote.c b/daemon/remote.c index 245d41c..82ee13b 100644 --- a/daemon/remote.c +++ b/daemon/remote.c @@ -672,6 +672,15 @@ remoteSerializeTypedParameters(virTypedParameterPtr params, case VIR_TYPED_PARAM_BOOLEAN: val[i].value.remote_typed_param_value_u.b = params[i].value.b; break; + case VIR_TYPED_PARAM_STRING: + if (params[i].value.s) { + val[i].value.remote_typed_param_value_u.s = strdup(params[i].value.s); + if (val[i].value.remote_typed_param_value_u.s == NULL) { + virReportOOMError(); + goto cleanup; + } + } + break; default: virNetError(VIR_ERR_RPC, _("unknown parameter type: %d"), params[i].type); @@ -750,6 +759,14 @@ remoteDeserializeTypedParameters(remote_typed_param *args_params_val, params[i].value.b = args_params_val[i].value.remote_typed_param_value_u.b; break; + case VIR_TYPED_PARAM_STRING: + params[i].value.s = + strdup(args_params_val[i].value.remote_typed_param_value_u.s); + if (params[i].value.s == NULL) { + virReportOOMError(); + goto cleanup; + } + break; default: virNetError(VIR_ERR_INTERNAL_ERROR, _("unknown parameter type: %d"), params[i].type); diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in index 39155a6..448a0e7 100644 --- a/include/libvirt/libvirt.h.in +++ b/include/libvirt/libvirt.h.in @@ -205,6 +205,7 @@ typedef enum { VIR_DOMAIN_AFFECT_CURRENT = 0, /* Affect current domain state. */ VIR_DOMAIN_AFFECT_LIVE = 1 << 0, /* Affect running domain state. */ VIR_DOMAIN_AFFECT_CONFIG = 1 << 1, /* Affect persistent domain state. */ + VIR_DOMAIN_TYPED_STRING_OKAY = 1 << 2, } virDomainModificationImpact; /** @@ -489,7 +490,8 @@ typedef enum { VIR_TYPED_PARAM_LLONG = 3, /* long long case */ VIR_TYPED_PARAM_ULLONG = 4, /* unsigned long long case */ VIR_TYPED_PARAM_DOUBLE = 5, /* double case */ - VIR_TYPED_PARAM_BOOLEAN = 6 /* boolean(character) case */ + VIR_TYPED_PARAM_BOOLEAN = 6, /* boolean(character) case */ + VIR_TYPED_PARAM_STRING = 7 /* string case */ } virTypedParameterType; /** @@ -520,6 +522,7 @@ struct _virTypedParameter { unsigned long long int ul; /* type is ULLONG */ double d; /* type is DOUBLE */ char b; /* type is BOOLEAN */ + char *s; /* type is STRING */ } value; /* parameter value */ }; diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c index 1217d94..85eaeea 100644 --- a/src/remote/remote_driver.c +++ b/src/remote/remote_driver.c @@ -1276,6 +1276,15 @@ remoteSerializeTypedParameters(virTypedParameterPtr params, case VIR_TYPED_PARAM_BOOLEAN: val[i].value.remote_typed_param_value_u.b = params[i].value.b; break; + case VIR_TYPED_PARAM_STRING: + if (params[i].value.s) { + val[i].value.remote_typed_param_value_u.s = strdup(params[i].value.s); + if (val[i].value.remote_typed_param_value_u.s == NULL) { + virReportOOMError(); + goto cleanup; + } + } + break; default: remoteError(VIR_ERR_RPC, _("unknown parameter type: %d"), params[i].type); @@ -1347,6 +1356,14 @@ remoteDeserializeTypedParameters(remote_typed_param *ret_params_val, params[i].value.b = ret_params_val[i].value.remote_typed_param_value_u.b; break; + case VIR_TYPED_PARAM_STRING: + params[i].value.s = + strdup(ret_params_val[i].value.remote_typed_param_value_u.s); + if (params[i].value.s == NULL) { + virReportOOMError(); + goto cleanup; + } + break; default: remoteError(VIR_ERR_RPC, _("unknown parameter type: %d"), params[i].type); diff --git a/src/remote/remote_protocol.x b/src/remote/remote_protocol.x index 455e324..ec2fc84 100644 --- a/src/remote/remote_protocol.x +++ b/src/remote/remote_protocol.x @@ -317,6 +317,8 @@ union remote_typed_param_value switch (int type) { double d; case VIR_TYPED_PARAM_BOOLEAN: int b; + case VIR_TYPED_PARAM_STRING: + remote_nonnull_string s; }; struct remote_typed_param { diff --git a/src/remote_protocol-structs b/src/remote_protocol-structs index 810b19c..9ddd4e1 100644 --- a/src/remote_protocol-structs +++ b/src/remote_protocol-structs @@ -6,6 +6,7 @@ enum { VIR_TYPED_PARAM_ULLONG = 4, VIR_TYPED_PARAM_DOUBLE = 5, VIR_TYPED_PARAM_BOOLEAN = 6, + VIR_TYPED_PARAM_STRING = 7, }; struct remote_nonnull_domain { remote_nonnull_string name; @@ -78,6 +79,7 @@ struct remote_typed_param_value { uint64_t ul; double d; int b; + remote_nonnull_string s; } remote_typed_param_value_u; }; struct remote_typed_param { -- 1.7.3.1