1204076Spjd/*- 2330449Seadler * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3330449Seadler * 4204076Spjd * Copyright (c) 2009-2010 The FreeBSD Foundation 5204076Spjd * All rights reserved. 6204076Spjd * 7204076Spjd * This software was developed by Pawel Jakub Dawidek under sponsorship from 8204076Spjd * the FreeBSD Foundation. 9204076Spjd * 10204076Spjd * Redistribution and use in source and binary forms, with or without 11204076Spjd * modification, are permitted provided that the following conditions 12204076Spjd * are met: 13204076Spjd * 1. Redistributions of source code must retain the above copyright 14204076Spjd * notice, this list of conditions and the following disclaimer. 15204076Spjd * 2. Redistributions in binary form must reproduce the above copyright 16204076Spjd * notice, this list of conditions and the following disclaimer in the 17204076Spjd * documentation and/or other materials provided with the distribution. 18204076Spjd * 19204076Spjd * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 20204076Spjd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21204076Spjd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22204076Spjd * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 23204076Spjd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24204076Spjd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25204076Spjd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26204076Spjd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27204076Spjd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28204076Spjd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29204076Spjd * SUCH DAMAGE. 30204076Spjd */ 31204076Spjd 32204076Spjd#include <sys/cdefs.h> 33204076Spjd__FBSDID("$FreeBSD: stable/11/sbin/hastd/control.c 330449 2018-03-05 07:26:05Z eadler $"); 34204076Spjd 35204076Spjd#include <sys/types.h> 36204076Spjd#include <sys/wait.h> 37204076Spjd 38204076Spjd#include <errno.h> 39204076Spjd#include <pthread.h> 40213003Spjd#include <signal.h> 41204076Spjd#include <stdio.h> 42204076Spjd#include <string.h> 43213006Spjd#include <unistd.h> 44204076Spjd 45204076Spjd#include "hast.h" 46204076Spjd#include "hastd.h" 47219351Spjd#include "hast_checksum.h" 48219354Spjd#include "hast_compression.h" 49204076Spjd#include "hast_proto.h" 50211978Spjd#include "hooks.h" 51204076Spjd#include "nv.h" 52204076Spjd#include "pjdlog.h" 53204076Spjd#include "proto.h" 54204076Spjd#include "subr.h" 55204076Spjd 56204076Spjd#include "control.h" 57204076Spjd 58213006Spjdvoid 59213006Spjdchild_cleanup(struct hast_resource *res) 60213006Spjd{ 61213006Spjd 62213006Spjd proto_close(res->hr_ctrl); 63213006Spjd res->hr_ctrl = NULL; 64213579Spjd if (res->hr_event != NULL) { 65213579Spjd proto_close(res->hr_event); 66213579Spjd res->hr_event = NULL; 67213579Spjd } 68218218Spjd if (res->hr_conn != NULL) { 69218218Spjd proto_close(res->hr_conn); 70218218Spjd res->hr_conn = NULL; 71218218Spjd } 72213006Spjd res->hr_workerpid = 0; 73213006Spjd} 74213006Spjd 75204076Spjdstatic void 76210882Spjdcontrol_set_role_common(struct hastd_config *cfg, struct nv *nvout, 77210882Spjd uint8_t role, struct hast_resource *res, const char *name, unsigned int no) 78204076Spjd{ 79211978Spjd int oldrole; 80204076Spjd 81204076Spjd /* Name is always needed. */ 82210882Spjd if (name != NULL) 83210882Spjd nv_add_string(nvout, name, "resource%u", no); 84204076Spjd 85204076Spjd if (res == NULL) { 86225782Spjd PJDLOG_ASSERT(cfg != NULL); 87225782Spjd PJDLOG_ASSERT(name != NULL); 88210882Spjd 89204076Spjd TAILQ_FOREACH(res, &cfg->hc_resources, hr_next) { 90204076Spjd if (strcmp(res->hr_name, name) == 0) 91204076Spjd break; 92204076Spjd } 93204076Spjd if (res == NULL) { 94204076Spjd nv_add_int16(nvout, EHAST_NOENTRY, "error%u", no); 95204076Spjd return; 96204076Spjd } 97204076Spjd } 98225782Spjd PJDLOG_ASSERT(res != NULL); 99204076Spjd 100204076Spjd /* Send previous role back. */ 101204076Spjd nv_add_string(nvout, role2str(res->hr_role), "role%u", no); 102204076Spjd 103204076Spjd /* Nothing changed, return here. */ 104204076Spjd if (role == res->hr_role) 105204076Spjd return; 106204076Spjd 107204076Spjd pjdlog_prefix_set("[%s] (%s) ", res->hr_name, role2str(res->hr_role)); 108204076Spjd pjdlog_info("Role changed to %s.", role2str(role)); 109204076Spjd 110204076Spjd /* Change role to the new one. */ 111211978Spjd oldrole = res->hr_role; 112204076Spjd res->hr_role = role; 113204076Spjd pjdlog_prefix_set("[%s] (%s) ", res->hr_name, role2str(res->hr_role)); 114204076Spjd 115204076Spjd /* 116204076Spjd * If previous role was primary or secondary we have to kill process 117204076Spjd * doing that work. 118204076Spjd */ 119204076Spjd if (res->hr_workerpid != 0) { 120229945Spjd if (kill(res->hr_workerpid, SIGTERM) == -1) { 121204076Spjd pjdlog_errno(LOG_WARNING, 122204076Spjd "Unable to kill worker process %u", 123204076Spjd (unsigned int)res->hr_workerpid); 124204076Spjd } else if (waitpid(res->hr_workerpid, NULL, 0) != 125204076Spjd res->hr_workerpid) { 126204076Spjd pjdlog_errno(LOG_WARNING, 127204076Spjd "Error while waiting for worker process %u", 128204076Spjd (unsigned int)res->hr_workerpid); 129204076Spjd } else { 130204076Spjd pjdlog_debug(1, "Worker process %u stopped.", 131204076Spjd (unsigned int)res->hr_workerpid); 132204076Spjd } 133213006Spjd child_cleanup(res); 134204076Spjd } 135204076Spjd 136204076Spjd /* Start worker process if we are changing to primary. */ 137204076Spjd if (role == HAST_ROLE_PRIMARY) 138204076Spjd hastd_primary(res); 139204076Spjd pjdlog_prefix_set("%s", ""); 140211978Spjd hook_exec(res->hr_exec, "role", res->hr_name, role2str(oldrole), 141211978Spjd role2str(res->hr_role), NULL); 142204076Spjd} 143204076Spjd 144210882Spjdvoid 145210882Spjdcontrol_set_role(struct hast_resource *res, uint8_t role) 146210882Spjd{ 147210882Spjd 148210882Spjd control_set_role_common(NULL, NULL, role, res, NULL, 0); 149210882Spjd} 150210882Spjd 151204076Spjdstatic void 152204076Spjdcontrol_status_worker(struct hast_resource *res, struct nv *nvout, 153204076Spjd unsigned int no) 154204076Spjd{ 155204076Spjd struct nv *cnvin, *cnvout; 156204076Spjd const char *str; 157204076Spjd int error; 158204076Spjd 159223780Strociny cnvin = NULL; 160204076Spjd 161204076Spjd /* 162204076Spjd * Prepare and send command to worker process. 163204076Spjd */ 164204076Spjd cnvout = nv_alloc(); 165221076Strociny nv_add_uint8(cnvout, CONTROL_STATUS, "cmd"); 166204076Spjd error = nv_error(cnvout); 167204076Spjd if (error != 0) { 168217737Spjd pjdlog_common(LOG_ERR, 0, error, 169217737Spjd "Unable to prepare control header"); 170204076Spjd goto end; 171204076Spjd } 172229945Spjd if (hast_proto_send(res, res->hr_ctrl, cnvout, NULL, 0) == -1) { 173204076Spjd error = errno; 174217737Spjd pjdlog_errno(LOG_ERR, "Unable to send control header"); 175204076Spjd goto end; 176204076Spjd } 177204076Spjd 178204076Spjd /* 179204076Spjd * Receive response. 180204076Spjd */ 181229945Spjd if (hast_proto_recv_hdr(res->hr_ctrl, &cnvin) == -1) { 182204076Spjd error = errno; 183217737Spjd pjdlog_errno(LOG_ERR, "Unable to receive control header"); 184204076Spjd goto end; 185204076Spjd } 186204076Spjd 187217730Spjd error = nv_get_int16(cnvin, "error"); 188204076Spjd if (error != 0) 189204076Spjd goto end; 190204076Spjd 191204076Spjd if ((str = nv_get_string(cnvin, "status")) == NULL) { 192204076Spjd error = ENOENT; 193217737Spjd pjdlog_errno(LOG_ERR, "Field 'status' is missing."); 194204076Spjd goto end; 195204076Spjd } 196204076Spjd nv_add_string(nvout, str, "status%u", no); 197204076Spjd nv_add_uint64(nvout, nv_get_uint64(cnvin, "dirty"), "dirty%u", no); 198204076Spjd nv_add_uint32(nvout, nv_get_uint32(cnvin, "extentsize"), 199204076Spjd "extentsize%u", no); 200204076Spjd nv_add_uint32(nvout, nv_get_uint32(cnvin, "keepdirty"), 201204076Spjd "keepdirty%u", no); 202222228Spjd nv_add_uint64(nvout, nv_get_uint64(cnvin, "stat_read"), 203222228Spjd "stat_read%u", no); 204222228Spjd nv_add_uint64(nvout, nv_get_uint64(cnvin, "stat_write"), 205222228Spjd "stat_write%u", no); 206222228Spjd nv_add_uint64(nvout, nv_get_uint64(cnvin, "stat_delete"), 207222228Spjd "stat_delete%u", no); 208222228Spjd nv_add_uint64(nvout, nv_get_uint64(cnvin, "stat_flush"), 209222228Spjd "stat_flush%u", no); 210222228Spjd nv_add_uint64(nvout, nv_get_uint64(cnvin, "stat_activemap_update"), 211222228Spjd "stat_activemap_update%u", no); 212247281Strociny nv_add_uint64(nvout, nv_get_uint64(cnvin, "stat_read_error"), 213247281Strociny "stat_read_error%u", no); 214247281Strociny nv_add_uint64(nvout, nv_get_uint64(cnvin, "stat_write_error"), 215247281Strociny "stat_write_error%u", no); 216247281Strociny nv_add_uint64(nvout, nv_get_uint64(cnvin, "stat_delete_error"), 217247281Strociny "stat_delete_error%u", no); 218247281Strociny nv_add_uint64(nvout, nv_get_uint64(cnvin, "stat_flush_error"), 219247281Strociny "stat_flush_error%u", no); 220257155Strociny nv_add_uint64(nvout, nv_get_uint64(cnvin, "idle_queue_size"), 221257155Strociny "idle_queue_size%u", no); 222257155Strociny nv_add_uint64(nvout, nv_get_uint64(cnvin, "local_queue_size"), 223257155Strociny "local_queue_size%u", no); 224257155Strociny nv_add_uint64(nvout, nv_get_uint64(cnvin, "send_queue_size"), 225257155Strociny "send_queue_size%u", no); 226257155Strociny nv_add_uint64(nvout, nv_get_uint64(cnvin, "recv_queue_size"), 227257155Strociny "recv_queue_size%u", no); 228257155Strociny nv_add_uint64(nvout, nv_get_uint64(cnvin, "done_queue_size"), 229257155Strociny "done_queue_size%u", no); 230204076Spjdend: 231204076Spjd if (cnvin != NULL) 232204076Spjd nv_free(cnvin); 233204076Spjd if (cnvout != NULL) 234204076Spjd nv_free(cnvout); 235204076Spjd if (error != 0) 236204076Spjd nv_add_int16(nvout, error, "error"); 237204076Spjd} 238204076Spjd 239204076Spjdstatic void 240204076Spjdcontrol_status(struct hastd_config *cfg, struct nv *nvout, 241204076Spjd struct hast_resource *res, const char *name, unsigned int no) 242204076Spjd{ 243204076Spjd 244225782Spjd PJDLOG_ASSERT(cfg != NULL); 245225782Spjd PJDLOG_ASSERT(nvout != NULL); 246225782Spjd PJDLOG_ASSERT(name != NULL); 247204076Spjd 248204076Spjd /* Name is always needed. */ 249204076Spjd nv_add_string(nvout, name, "resource%u", no); 250204076Spjd 251204076Spjd if (res == NULL) { 252204076Spjd TAILQ_FOREACH(res, &cfg->hc_resources, hr_next) { 253204076Spjd if (strcmp(res->hr_name, name) == 0) 254204076Spjd break; 255204076Spjd } 256204076Spjd if (res == NULL) { 257204076Spjd nv_add_int16(nvout, EHAST_NOENTRY, "error%u", no); 258204076Spjd return; 259204076Spjd } 260204076Spjd } 261225782Spjd PJDLOG_ASSERT(res != NULL); 262204076Spjd nv_add_string(nvout, res->hr_provname, "provname%u", no); 263204076Spjd nv_add_string(nvout, res->hr_localpath, "localpath%u", no); 264204076Spjd nv_add_string(nvout, res->hr_remoteaddr, "remoteaddr%u", no); 265219818Spjd if (res->hr_sourceaddr[0] != '\0') 266219818Spjd nv_add_string(nvout, res->hr_sourceaddr, "sourceaddr%u", no); 267204076Spjd switch (res->hr_replication) { 268204076Spjd case HAST_REPLICATION_FULLSYNC: 269204076Spjd nv_add_string(nvout, "fullsync", "replication%u", no); 270204076Spjd break; 271204076Spjd case HAST_REPLICATION_MEMSYNC: 272204076Spjd nv_add_string(nvout, "memsync", "replication%u", no); 273204076Spjd break; 274204076Spjd case HAST_REPLICATION_ASYNC: 275204076Spjd nv_add_string(nvout, "async", "replication%u", no); 276204076Spjd break; 277204076Spjd default: 278204076Spjd nv_add_string(nvout, "unknown", "replication%u", no); 279204076Spjd break; 280204076Spjd } 281219351Spjd nv_add_string(nvout, checksum_name(res->hr_checksum), 282219351Spjd "checksum%u", no); 283219354Spjd nv_add_string(nvout, compression_name(res->hr_compression), 284219354Spjd "compression%u", no); 285204076Spjd nv_add_string(nvout, role2str(res->hr_role), "role%u", no); 286252472Strociny nv_add_int32(nvout, res->hr_workerpid, "workerpid%u", no); 287204076Spjd 288204076Spjd switch (res->hr_role) { 289204076Spjd case HAST_ROLE_PRIMARY: 290225782Spjd PJDLOG_ASSERT(res->hr_workerpid != 0); 291204076Spjd /* FALLTHROUGH */ 292204076Spjd case HAST_ROLE_SECONDARY: 293204076Spjd if (res->hr_workerpid != 0) 294204076Spjd break; 295204076Spjd /* FALLTHROUGH */ 296204076Spjd default: 297204076Spjd return; 298204076Spjd } 299204076Spjd 300204076Spjd /* 301204076Spjd * If we are here, it means that we have a worker process, which we 302204076Spjd * want to ask some questions. 303204076Spjd */ 304204076Spjd control_status_worker(res, nvout, no); 305204076Spjd} 306204076Spjd 307204076Spjdvoid 308204076Spjdcontrol_handle(struct hastd_config *cfg) 309204076Spjd{ 310204076Spjd struct proto_conn *conn; 311204076Spjd struct nv *nvin, *nvout; 312204076Spjd unsigned int ii; 313204076Spjd const char *str; 314204076Spjd uint8_t cmd, role; 315204076Spjd int error; 316204076Spjd 317229945Spjd if (proto_accept(cfg->hc_controlconn, &conn) == -1) { 318204076Spjd pjdlog_errno(LOG_ERR, "Unable to accept control connection"); 319204076Spjd return; 320204076Spjd } 321204076Spjd 322217969Spjd cfg->hc_controlin = conn; 323204076Spjd nvin = nvout = NULL; 324204076Spjd role = HAST_ROLE_UNDEF; 325204076Spjd 326229945Spjd if (hast_proto_recv_hdr(conn, &nvin) == -1) { 327204076Spjd pjdlog_errno(LOG_ERR, "Unable to receive control header"); 328204076Spjd nvin = NULL; 329204076Spjd goto close; 330204076Spjd } 331204076Spjd 332204076Spjd /* Obtain command code. 0 means that nv_get_uint8() failed. */ 333204076Spjd cmd = nv_get_uint8(nvin, "cmd"); 334204076Spjd if (cmd == 0) { 335204076Spjd pjdlog_error("Control header is missing 'cmd' field."); 336204076Spjd goto close; 337204076Spjd } 338204076Spjd 339204076Spjd /* Allocate outgoing nv structure. */ 340204076Spjd nvout = nv_alloc(); 341204076Spjd if (nvout == NULL) { 342204076Spjd pjdlog_error("Unable to allocate header for control response."); 343204076Spjd goto close; 344204076Spjd } 345204076Spjd 346204076Spjd error = 0; 347204076Spjd 348204076Spjd str = nv_get_string(nvin, "resource0"); 349204076Spjd if (str == NULL) { 350204076Spjd pjdlog_error("Control header is missing 'resource0' field."); 351204076Spjd error = EHAST_INVALID; 352204076Spjd goto fail; 353204076Spjd } 354221075Strociny if (cmd == HASTCTL_CMD_SETROLE) { 355204076Spjd role = nv_get_uint8(nvin, "role"); 356204076Spjd switch (role) { 357219833Spjd case HAST_ROLE_INIT: 358204076Spjd case HAST_ROLE_PRIMARY: 359204076Spjd case HAST_ROLE_SECONDARY: 360204076Spjd break; 361204076Spjd default: 362204076Spjd pjdlog_error("Invalid role received (%hhu).", role); 363204076Spjd error = EHAST_INVALID; 364204076Spjd goto fail; 365204076Spjd } 366204076Spjd } 367204076Spjd if (strcmp(str, "all") == 0) { 368204076Spjd struct hast_resource *res; 369204076Spjd 370204076Spjd /* All configured resources. */ 371204076Spjd 372204076Spjd ii = 0; 373204076Spjd TAILQ_FOREACH(res, &cfg->hc_resources, hr_next) { 374204076Spjd switch (cmd) { 375221075Strociny case HASTCTL_CMD_SETROLE: 376210882Spjd control_set_role_common(cfg, nvout, role, res, 377204076Spjd res->hr_name, ii++); 378204076Spjd break; 379221075Strociny case HASTCTL_CMD_STATUS: 380204076Spjd control_status(cfg, nvout, res, res->hr_name, 381204076Spjd ii++); 382204076Spjd break; 383204076Spjd default: 384204076Spjd pjdlog_error("Invalid command received (%hhu).", 385204076Spjd cmd); 386204076Spjd error = EHAST_UNIMPLEMENTED; 387204076Spjd goto fail; 388204076Spjd } 389204076Spjd } 390204076Spjd } else { 391204076Spjd /* Only selected resources. */ 392204076Spjd 393204076Spjd for (ii = 0; ; ii++) { 394204076Spjd str = nv_get_string(nvin, "resource%u", ii); 395204076Spjd if (str == NULL) 396204076Spjd break; 397204076Spjd switch (cmd) { 398221075Strociny case HASTCTL_CMD_SETROLE: 399210882Spjd control_set_role_common(cfg, nvout, role, NULL, 400210882Spjd str, ii); 401204076Spjd break; 402221075Strociny case HASTCTL_CMD_STATUS: 403204076Spjd control_status(cfg, nvout, NULL, str, ii); 404204076Spjd break; 405204076Spjd default: 406204076Spjd pjdlog_error("Invalid command received (%hhu).", 407204076Spjd cmd); 408204076Spjd error = EHAST_UNIMPLEMENTED; 409204076Spjd goto fail; 410204076Spjd } 411204076Spjd } 412204076Spjd } 413204076Spjd if (nv_error(nvout) != 0) 414204076Spjd goto close; 415204076Spjdfail: 416204076Spjd if (error != 0) 417204076Spjd nv_add_int16(nvout, error, "error"); 418204076Spjd 419229945Spjd if (hast_proto_send(NULL, conn, nvout, NULL, 0) == -1) 420204076Spjd pjdlog_errno(LOG_ERR, "Unable to send control response"); 421204076Spjdclose: 422204076Spjd if (nvin != NULL) 423204076Spjd nv_free(nvin); 424204076Spjd if (nvout != NULL) 425204076Spjd nv_free(nvout); 426204076Spjd proto_close(conn); 427217969Spjd cfg->hc_controlin = NULL; 428204076Spjd} 429204076Spjd 430204076Spjd/* 431204076Spjd * Thread handles control requests from the parent. 432204076Spjd */ 433204076Spjdvoid * 434204076Spjdctrl_thread(void *arg) 435204076Spjd{ 436204076Spjd struct hast_resource *res = arg; 437204076Spjd struct nv *nvin, *nvout; 438204076Spjd uint8_t cmd; 439204076Spjd 440204076Spjd for (;;) { 441229945Spjd if (hast_proto_recv_hdr(res->hr_ctrl, &nvin) == -1) { 442204076Spjd if (sigexit_received) 443204076Spjd pthread_exit(NULL); 444204076Spjd pjdlog_errno(LOG_ERR, 445204076Spjd "Unable to receive control message"); 446213004Spjd kill(getpid(), SIGTERM); 447213004Spjd pthread_exit(NULL); 448204076Spjd } 449204076Spjd cmd = nv_get_uint8(nvin, "cmd"); 450204076Spjd if (cmd == 0) { 451204076Spjd pjdlog_error("Control message is missing 'cmd' field."); 452204076Spjd nv_free(nvin); 453204076Spjd continue; 454204076Spjd } 455204076Spjd nvout = nv_alloc(); 456204076Spjd switch (cmd) { 457221076Strociny case CONTROL_STATUS: 458204076Spjd if (res->hr_remotein != NULL && 459204076Spjd res->hr_remoteout != NULL) { 460204076Spjd nv_add_string(nvout, "complete", "status"); 461204076Spjd } else { 462204076Spjd nv_add_string(nvout, "degraded", "status"); 463204076Spjd } 464204076Spjd nv_add_uint32(nvout, (uint32_t)res->hr_extentsize, 465204076Spjd "extentsize"); 466204076Spjd if (res->hr_role == HAST_ROLE_PRIMARY) { 467204076Spjd nv_add_uint32(nvout, 468204076Spjd (uint32_t)res->hr_keepdirty, "keepdirty"); 469204076Spjd nv_add_uint64(nvout, 470204076Spjd (uint64_t)(activemap_ndirty(res->hr_amp) * 471204076Spjd res->hr_extentsize), "dirty"); 472204076Spjd } else { 473204076Spjd nv_add_uint32(nvout, (uint32_t)0, "keepdirty"); 474204076Spjd nv_add_uint64(nvout, (uint64_t)0, "dirty"); 475204076Spjd } 476222228Spjd nv_add_uint64(nvout, res->hr_stat_read, "stat_read"); 477222228Spjd nv_add_uint64(nvout, res->hr_stat_write, "stat_write"); 478222228Spjd nv_add_uint64(nvout, res->hr_stat_delete, 479222228Spjd "stat_delete"); 480222228Spjd nv_add_uint64(nvout, res->hr_stat_flush, "stat_flush"); 481222228Spjd nv_add_uint64(nvout, res->hr_stat_activemap_update, 482222228Spjd "stat_activemap_update"); 483247281Strociny nv_add_uint64(nvout, res->hr_stat_read_error, 484247281Strociny "stat_read_error"); 485247281Strociny nv_add_uint64(nvout, res->hr_stat_write_error + 486247281Strociny res->hr_stat_activemap_write_error, 487247281Strociny "stat_write_error"); 488247281Strociny nv_add_uint64(nvout, res->hr_stat_delete_error, 489247281Strociny "stat_delete_error"); 490247281Strociny nv_add_uint64(nvout, res->hr_stat_flush_error + 491247281Strociny res->hr_stat_activemap_flush_error, 492247281Strociny "stat_flush_error"); 493257155Strociny res->output_status_aux(nvout); 494217784Spjd nv_add_int16(nvout, 0, "error"); 495204076Spjd break; 496221076Strociny case CONTROL_RELOAD: 497217784Spjd /* 498217784Spjd * When parent receives SIGHUP and discovers that 499217784Spjd * something related to us has changes, it sends reload 500217784Spjd * message to us. 501217784Spjd */ 502225782Spjd PJDLOG_ASSERT(res->hr_role == HAST_ROLE_PRIMARY); 503217784Spjd primary_config_reload(res, nvin); 504217784Spjd nv_add_int16(nvout, 0, "error"); 505217784Spjd break; 506204076Spjd default: 507204076Spjd nv_add_int16(nvout, EINVAL, "error"); 508204076Spjd break; 509204076Spjd } 510217784Spjd nv_free(nvin); 511204076Spjd if (nv_error(nvout) != 0) { 512204076Spjd pjdlog_error("Unable to create answer on control message."); 513204076Spjd nv_free(nvout); 514204076Spjd continue; 515204076Spjd } 516229945Spjd if (hast_proto_send(NULL, res->hr_ctrl, nvout, NULL, 0) == -1) { 517204076Spjd pjdlog_errno(LOG_ERR, 518204076Spjd "Unable to send reply to control message"); 519204076Spjd } 520204076Spjd nv_free(nvout); 521204076Spjd } 522204076Spjd /* NOTREACHED */ 523204076Spjd return (NULL); 524204076Spjd} 525