[libvirt] [PATCH v3 08/14] Add virsh support for new CLI commands

This patch adds virsh support for the five new CLI commands to manage network filters. Signed-off-by: Stefan Berger <stefanb(a)us.ibm.com&gt; --- tools/virsh.c | 349 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 349 insertions(+) Index: libvirt-acl/tools/virsh.c =================================================================== --- libvirt-acl.orig/tools/virsh.c +++ libvirt-acl/tools/virsh.c @@ -254,6 +254,14 @@ static virNetworkPtr vshCommandOptNetwor vshCommandOptNetworkBy(_ctl, _cmd, _name, \ VSH_BYUUID|VSH_BYNAME) +static virNWFilterPtr vshCommandOptNWFilterBy(vshControl *ctl, const vshCmd *cmd, + char **name, int flag); + +/* default is lookup by Name and UUID */ +#define vshCommandOptNWFilter(_ctl, _cmd, _name) \ + vshCommandOptNWFilterBy(_ctl, _cmd, _name, \ + VSH_BYUUID|VSH_BYNAME) + static virInterfacePtr vshCommandOptInterfaceBy(vshControl *ctl, const vshCmd *cmd, char **name, int flag); @@ -3850,6 +3858,300 @@ cmdInterfaceDestroy(vshControl *ctl, con return ret; } + +/* + * "nwfilter-define" command + */ +static const vshCmdInfo info_nwfilter_define[] = { + {"help", N_("define or update a network filter from an XML file")}, + {"desc", N_("Define a new network filter or update an existing one.")}, + {NULL, NULL} +}; + +static const vshCmdOptDef opts_nwfilter_define[] = { + {"file", VSH_OT_DATA, VSH_OFLAG_REQ, N_("file containing an XML network filter description")}, + {NULL, 0, 0, NULL} +}; + +static int +cmdNWFilterDefine(vshControl *ctl, const vshCmd *cmd) +{ + virNWFilterPtr nwfilter; + char *from; + int found; + int ret = TRUE; + char *buffer; + + if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) + return FALSE; + + from = vshCommandOptString(cmd, "file", &found); + if (!found) + return FALSE; + + if (virFileReadAll(from, VIRSH_MAX_XML_FILE, &buffer) < 0) + return FALSE; + + nwfilter = virNWFilterDefineXML(ctl->conn, buffer); + VIR_FREE(buffer); + + if (nwfilter != NULL) { + vshPrint(ctl, _("Network filter %s defined from %s\n"), + virNWFilterGetName(nwfilter), from); + virNWFilterFree(nwfilter); + } else { + vshError(ctl, _("Failed to define network filter from %s"), from); + ret = FALSE; + } + return ret; +} + + +/* + * "nwfilter-undefine" command + */ +static const vshCmdInfo info_nwfilter_undefine[] = { + {"help", N_("undefine a network filter")}, + {"desc", N_("Undefine a given network filter.")}, + {NULL, NULL} +}; + +static const vshCmdOptDef opts_nwfilter_undefine[] = { + {"nwfilter", VSH_OT_DATA, VSH_OFLAG_REQ, N_("network filter name or uuid")}, + {NULL, 0, 0, NULL} +}; + +static int +cmdNWFilterUndefine(vshControl *ctl, const vshCmd *cmd) +{ + virNWFilterPtr nwfilter; + int ret = TRUE; + char *name; + + if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) + return FALSE; + + if (!(nwfilter = vshCommandOptNWFilter(ctl, cmd, &name))) + return FALSE; + + if (virNWFilterUndefine(nwfilter) == 0) { + vshPrint(ctl, _("Network filter %s undefined\n"), name); + } else { + vshError(ctl, _("Failed to undefine network filter %s"), name); + ret = FALSE; + } + + virNWFilterFree(nwfilter); + return ret; +} + + +/* + * "nwfilter-dumpxml" command + */ +static const vshCmdInfo info_nwfilter_dumpxml[] = { + {"help", N_("network filter information in XML")}, + {"desc", N_("Output the network filter information as an XML dump to stdout.")}, + {NULL, NULL} +}; + +static const vshCmdOptDef opts_nwfilter_dumpxml[] = { + {"nwfilter", VSH_OT_DATA, VSH_OFLAG_REQ, N_("network filter name or uuid")}, + {NULL, 0, 0, NULL} +}; + +static int +cmdNWFilterDumpXML(vshControl *ctl, const vshCmd *cmd) +{ + virNWFilterPtr nwfilter; + int ret = TRUE; + char *dump; + + if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) + return FALSE; + + if (!(nwfilter = vshCommandOptNWFilter(ctl, cmd, NULL))) + return FALSE; + + dump = virNWFilterGetXMLDesc(nwfilter, 0); + if (dump != NULL) { + printf("%s", dump); + VIR_FREE(dump); + } else { + ret = FALSE; + } + + virNWFilterFree(nwfilter); + return ret; +} + +/* + * "nwfilter-list" command + */ +static const vshCmdInfo info_nwfilter_list[] = { + {"help", N_("list network filters")}, + {"desc", N_("Returns list of network filters.")}, + {NULL, NULL} +}; + +static const vshCmdOptDef opts_nwfilter_list[] = { + {NULL, 0, 0, NULL} +}; + +static int +cmdNWFilterList(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED) +{ + int numfilters, i; + char **names; + unsigned char uuid[VIR_UUID_STRING_BUFLEN]; + + if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) + return FALSE; + + numfilters = virConnectNumOfNWFilters(ctl->conn); + if (numfilters < 0) { + vshError(ctl, "%s", _("Failed to list network filters")); + return FALSE; + } + + names = vshMalloc(ctl, sizeof(char *) * numfilters); + + if ((numfilters = virConnectListNWFilters(ctl->conn, names, + numfilters)) < 0) { + vshError(ctl, "%s", _("Failed to list network filters")); + VIR_FREE(names); + return FALSE; + } + + qsort(&names[0], numfilters, sizeof(char *), namesorter); + + vshPrintExtra(ctl, "%-36s %-20s \n", _("UUID"), _("Name")); + vshPrintExtra(ctl, + "----------------------------------------------------------------\n"); + + for (i = 0; i < numfilters; i++) { + virNWFilterPtr nwfilter = + virNWFilterLookupByName(ctl->conn, names[i]); + + /* this kind of work with networks is not atomic operation */ + if (!nwfilter) { + VIR_FREE(names[i]); + continue; + } + + virNWFilterGetUUIDString(nwfilter, uuid); + vshPrint(ctl, "%-36s %-20s\n", + uuid, + virNWFilterGetName(nwfilter)); + virNWFilterFree(nwfilter); + VIR_FREE(names[i]); + } + + VIR_FREE(names); + return TRUE; +} + + +/* + * "nwfilter-edit" command + */ +static const vshCmdInfo info_nwfilter_edit[] = { + {"help", N_("edit XML configuration for a network filter")}, + {"desc", N_("Edit the XML configuration for a network filter.")}, + {NULL, NULL} +}; + +static const vshCmdOptDef opts_nwfilter_edit[] = { + {"nwfilter", VSH_OT_DATA, VSH_OFLAG_REQ, N_("network filter name or uuid")}, + {NULL, 0, 0, NULL} +}; + +static int +cmdNWFilterEdit (vshControl *ctl, const vshCmd *cmd) +{ + int ret = FALSE; + virNWFilterPtr nwfilter = NULL; + char *tmp = NULL; + char *doc = NULL; + char *doc_edited = NULL; + char *doc_reread = NULL; + + if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) + goto cleanup; + + nwfilter = vshCommandOptNWFilter (ctl, cmd, NULL); + if (nwfilter == NULL) + goto cleanup; + + /* Get the XML configuration of the interface. */ + doc = virNWFilterGetXMLDesc (nwfilter, 0); + if (!doc) + goto cleanup; + + /* Create and open the temporary file. */ + tmp = editWriteToTempFile (ctl, doc); + if (!tmp) goto cleanup; + + /* Start the editor. */ + if (editFile (ctl, tmp) == -1) goto cleanup; + + /* Read back the edited file. */ + doc_edited = editReadBackFile (ctl, tmp); + if (!doc_edited) goto cleanup; + + unlink (tmp); + tmp = NULL; + + /* Compare original XML with edited. Has it changed at all? */ + if (STREQ (doc, doc_edited)) { + vshPrint (ctl, _("Network filter %s XML configuration not changed.\n"), + virNWFilterGetName (nwfilter)); + ret = TRUE; + goto cleanup; + } + + /* Now re-read the network filter XML. Did someone else change it while + * it was being edited? This also catches problems such as us + * losing a connection or the interface going away. + */ + doc_reread = virNWFilterGetXMLDesc (nwfilter, 0); + if (!doc_reread) + goto cleanup; + + if (STRNEQ (doc, doc_reread)) { + vshError(ctl, "%s", + _("ERROR: the XML configuration was changed by another user")); + goto cleanup; + } + + /* Everything checks out, so redefine the interface. */ + virNWFilterFree (nwfilter); + nwfilter = virNWFilterDefineXML (ctl->conn, doc_edited); + if (!nwfilter) + goto cleanup; + + vshPrint (ctl, _("Network filter %s XML configuration edited.\n"), + virNWFilterGetName(nwfilter)); + + ret = TRUE; + +cleanup: + if (nwfilter) + virNWFilterFree (nwfilter); + + VIR_FREE(doc); + VIR_FREE(doc_edited); + VIR_FREE(doc_reread); + + if (tmp) { + unlink (tmp); + VIR_FREE(tmp); + } + + return ret; +} + + /**************************************************************************/ /* * "pool-autostart" command @@ -7848,6 +8150,12 @@ static const vshCmdDef commands[] = { {"nodedev-create", cmdNodeDeviceCreate, opts_node_device_create, info_node_device_create}, {"nodedev-destroy", cmdNodeDeviceDestroy, opts_node_device_destroy, info_node_device_destroy}, + {"nwfilter-define", cmdNWFilterDefine, opts_nwfilter_define, info_nwfilter_define}, + {"nwfilter-undefine", cmdNWFilterUndefine, opts_nwfilter_undefine, info_nwfilter_undefine}, + {"nwfilter-dumpxml", cmdNWFilterDumpXML, opts_nwfilter_dumpxml, info_nwfilter_dumpxml}, + {"nwfilter-list", cmdNWFilterList, opts_nwfilter_list, info_nwfilter_list}, + {"nwfilter-edit", cmdNWFilterEdit, opts_nwfilter_edit, info_nwfilter_edit}, + {"pool-autostart", cmdPoolAutostart, opts_pool_autostart, info_pool_autostart}, {"pool-build", cmdPoolBuild, opts_pool_build, info_pool_build}, {"pool-create", cmdPoolCreate, opts_pool_create, info_pool_create}, @@ -8320,6 +8628,47 @@ vshCommandOptNetworkBy(vshControl *ctl, return network; } + +static virNWFilterPtr +vshCommandOptNWFilterBy(vshControl *ctl, const vshCmd *cmd, + char **name, int flag) +{ + virNWFilterPtr nwfilter = NULL; + char *n; + const char *optname = "nwfilter"; + if (!cmd_has_option (ctl, cmd, optname)) + return NULL; + + if (!(n = vshCommandOptString(cmd, optname, NULL))) { + vshError(ctl, "%s", _("undefined nwfilter name")); + return NULL; + } + + vshDebug(ctl, 5, "%s: found option <%s>: %s\n", + cmd->def->name, optname, n); + + if (name) + *name = n; + + /* try it by UUID */ + if ((flag & VSH_BYUUID) && (strlen(n) == VIR_UUID_STRING_BUFLEN-1)) { + vshDebug(ctl, 5, "%s: <%s> trying as nwfilter UUID\n", + cmd->def->name, optname); + nwfilter = virNWFilterLookupByUUIDString(ctl->conn, n); + } + /* try it by NAME */ + if (nwfilter == NULL && (flag & VSH_BYNAME)) { + vshDebug(ctl, 5, "%s: <%s> trying as nwfilter NAME\n", + cmd->def->name, optname); + nwfilter = virNWFilterLookupByName(ctl->conn, n); + } + + if (!nwfilter) + vshError(ctl, _("failed to get nwfilter '%s'"), n); + + return nwfilter; +} + static virInterfacePtr vshCommandOptInterfaceBy(vshControl *ctl, const vshCmd *cmd, char **name, int flag)