void libxl__update_domain_configuration(libxl__gc *gc, libxl_domain_config *dst, const libxl_domain_config *src) { int i; /* update network interface information */ for (i = 0; i < src->num_nics; i++) libxl__update_config_nic(gc, &dst->nics[i], &src->nics[i]); /* update vtpm information */ for (i = 0; i < src->num_vtpms; i++) libxl__update_config_vtpm(gc, &dst->vtpms[i], &src->vtpms[i]); /* update guest UUID */ libxl_uuid_copy(CTX, &dst->c_info.uuid, &src->c_info.uuid); /* video ram */ dst->b_info.video_memkb = src->b_info.video_memkb; }
static void libxl_device_nic_update_config(libxl__gc *gc, void *d, void *s) { libxl__update_config_nic(gc, d, s); }
static void libxl__device_nic_add(libxl__egc *egc, uint32_t domid, libxl_device_nic *nic, libxl__ao_device *aodev) { STATE_AO_GC(aodev->ao); flexarray_t *front; flexarray_t *back; libxl__device *device; int rc; xs_transaction_t t = XBT_NULL; libxl_domain_config d_config; libxl_device_nic nic_saved; libxl__domain_userdata_lock *lock = NULL; libxl_domain_config_init(&d_config); libxl_device_nic_init(&nic_saved); libxl_device_nic_copy(CTX, &nic_saved, nic); rc = libxl__device_nic_setdefault(gc, nic, domid, aodev->update_json); if (rc) goto out; front = flexarray_make(gc, 16, 1); back = flexarray_make(gc, 18, 1); if (nic->devid == -1) { if ((nic->devid = libxl__device_nextid(gc, domid, "vif")) < 0) { rc = ERROR_FAIL; goto out; } } libxl__update_config_nic(gc, &nic_saved, nic); GCNEW(device); rc = libxl__device_from_nic(gc, domid, nic, device); if ( rc != 0 ) goto out; flexarray_append(back, "frontend-id"); flexarray_append(back, GCSPRINTF("%d", domid)); flexarray_append(back, "online"); flexarray_append(back, "1"); flexarray_append(back, "state"); flexarray_append(back, GCSPRINTF("%d", XenbusStateInitialising)); if (nic->script) flexarray_append_pair(back, "script", libxl__abs_path(gc, nic->script, libxl__xen_script_dir_path())); if (nic->ifname) { flexarray_append(back, "vifname"); flexarray_append(back, nic->ifname); } if (nic->coloft_forwarddev) { flexarray_append(back, "forwarddev"); flexarray_append(back, nic->coloft_forwarddev); } flexarray_append(back, "mac"); flexarray_append(back,GCSPRINTF(LIBXL_MAC_FMT, LIBXL_MAC_BYTES(nic->mac))); if (nic->ip) { flexarray_append(back, "ip"); flexarray_append(back, libxl__strdup(gc, nic->ip)); } if (nic->gatewaydev) { flexarray_append(back, "gatewaydev"); flexarray_append(back, libxl__strdup(gc, nic->gatewaydev)); } if (nic->rate_interval_usecs > 0) { flexarray_append(back, "rate"); flexarray_append(back, GCSPRINTF("%"PRIu64",%"PRIu32"", nic->rate_bytes_per_interval, nic->rate_interval_usecs)); } flexarray_append(back, "bridge"); flexarray_append(back, libxl__strdup(gc, nic->bridge)); flexarray_append(back, "handle"); flexarray_append(back, GCSPRINTF("%d", nic->devid)); flexarray_append(back, "type"); flexarray_append(back, libxl__strdup(gc, libxl_nic_type_to_string(nic->nictype))); flexarray_append(front, "backend-id"); flexarray_append(front, GCSPRINTF("%d", nic->backend_domid)); flexarray_append(front, "state"); flexarray_append(front, GCSPRINTF("%d", XenbusStateInitialising)); flexarray_append(front, "handle"); flexarray_append(front, GCSPRINTF("%d", nic->devid)); flexarray_append(front, "mac"); flexarray_append(front, GCSPRINTF( LIBXL_MAC_FMT, LIBXL_MAC_BYTES(nic->mac))); if (aodev->update_json) { lock = libxl__lock_domain_userdata(gc, domid); if (!lock) { rc = ERROR_LOCK_FAIL; goto out; } rc = libxl__get_domain_configuration(gc, domid, &d_config); if (rc) goto out; DEVICE_ADD(nic, nics, domid, &nic_saved, COMPARE_DEVID, &d_config); rc = libxl__dm_check_start(gc, &d_config, domid); if (rc) goto out; } for (;;) { rc = libxl__xs_transaction_start(gc, &t); if (rc) goto out; rc = libxl__device_exists(gc, t, device); if (rc < 0) goto out; if (rc == 1) { /* already exists in xenstore */ LOG(ERROR, "device already exists in xenstore"); aodev->action = LIBXL__DEVICE_ACTION_ADD; /* for error message */ rc = ERROR_DEVICE_EXISTS; goto out; } if (aodev->update_json) { rc = libxl__set_domain_configuration(gc, domid, &d_config); if (rc) goto out; } libxl__device_generic_add(gc, t, device, libxl__xs_kvs_of_flexarray(gc, back, back->count), libxl__xs_kvs_of_flexarray(gc, front, front->count), NULL); rc = libxl__xs_transaction_commit(gc, &t); if (!rc) break; if (rc < 0) goto out; } aodev->dev = device; aodev->action = LIBXL__DEVICE_ACTION_ADD; libxl__wait_device_connection(egc, aodev); rc = 0; out: libxl__xs_transaction_abort(gc, &t); if (lock) libxl__unlock_domain_userdata(lock); libxl_device_nic_dispose(&nic_saved); libxl_domain_config_dispose(&d_config); aodev->rc = rc; if (rc) aodev->callback(egc, aodev); return; }