1baacf047SPaolo Bonzini /* 2baacf047SPaolo Bonzini * inet and unix socket functions for qemu 3baacf047SPaolo Bonzini * 4baacf047SPaolo Bonzini * (c) 2008 Gerd Hoffmann <kraxel@redhat.com> 5baacf047SPaolo Bonzini * 6baacf047SPaolo Bonzini * This program is free software; you can redistribute it and/or modify 7baacf047SPaolo Bonzini * it under the terms of the GNU General Public License as published by 8baacf047SPaolo Bonzini * the Free Software Foundation; under version 2 of the License. 9baacf047SPaolo Bonzini * 10baacf047SPaolo Bonzini * This program is distributed in the hope that it will be useful, 11baacf047SPaolo Bonzini * but WITHOUT ANY WARRANTY; without even the implied warranty of 12baacf047SPaolo Bonzini * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13baacf047SPaolo Bonzini * GNU General Public License for more details. 14baacf047SPaolo Bonzini * 15baacf047SPaolo Bonzini * Contributions after 2012-01-13 are licensed under the terms of the 16baacf047SPaolo Bonzini * GNU GPL, version 2 or (at your option) any later version. 17baacf047SPaolo Bonzini */ 18baacf047SPaolo Bonzini #include <stdio.h> 19baacf047SPaolo Bonzini #include <stdlib.h> 20baacf047SPaolo Bonzini #include <string.h> 21baacf047SPaolo Bonzini #include <ctype.h> 22baacf047SPaolo Bonzini #include <errno.h> 23baacf047SPaolo Bonzini #include <unistd.h> 24baacf047SPaolo Bonzini 25baacf047SPaolo Bonzini #include "monitor/monitor.h" 26baacf047SPaolo Bonzini #include "qemu/sockets.h" 27baacf047SPaolo Bonzini #include "qemu/main-loop.h" 28*2a8e21c7SDaniel P. Berrange #include "qapi/qmp-input-visitor.h" 29*2a8e21c7SDaniel P. Berrange #include "qapi/qmp-output-visitor.h" 30*2a8e21c7SDaniel P. Berrange #include "qapi-visit.h" 31baacf047SPaolo Bonzini 32baacf047SPaolo Bonzini #ifndef AI_ADDRCONFIG 33baacf047SPaolo Bonzini # define AI_ADDRCONFIG 0 34baacf047SPaolo Bonzini #endif 353de3d698SWolfgang Bumiller #ifndef AI_V4MAPPED 363de3d698SWolfgang Bumiller # define AI_V4MAPPED 0 373de3d698SWolfgang Bumiller #endif 38baacf047SPaolo Bonzini 39e62be888SKevin Wolf /* used temporarily until all users are converted to QemuOpts */ 40e62be888SKevin Wolf QemuOptsList socket_optslist = { 41e62be888SKevin Wolf .name = "socket", 42e62be888SKevin Wolf .head = QTAILQ_HEAD_INITIALIZER(socket_optslist.head), 43baacf047SPaolo Bonzini .desc = { 44baacf047SPaolo Bonzini { 45baacf047SPaolo Bonzini .name = "path", 46baacf047SPaolo Bonzini .type = QEMU_OPT_STRING, 47baacf047SPaolo Bonzini },{ 48baacf047SPaolo Bonzini .name = "host", 49baacf047SPaolo Bonzini .type = QEMU_OPT_STRING, 50baacf047SPaolo Bonzini },{ 51baacf047SPaolo Bonzini .name = "port", 52baacf047SPaolo Bonzini .type = QEMU_OPT_STRING, 53baacf047SPaolo Bonzini },{ 54b8981dc9SPeter Krempa .name = "localaddr", 55b8981dc9SPeter Krempa .type = QEMU_OPT_STRING, 56b8981dc9SPeter Krempa },{ 57b8981dc9SPeter Krempa .name = "localport", 58b8981dc9SPeter Krempa .type = QEMU_OPT_STRING, 59b8981dc9SPeter Krempa },{ 60baacf047SPaolo Bonzini .name = "to", 61baacf047SPaolo Bonzini .type = QEMU_OPT_NUMBER, 62baacf047SPaolo Bonzini },{ 63baacf047SPaolo Bonzini .name = "ipv4", 64baacf047SPaolo Bonzini .type = QEMU_OPT_BOOL, 65baacf047SPaolo Bonzini },{ 66baacf047SPaolo Bonzini .name = "ipv6", 67baacf047SPaolo Bonzini .type = QEMU_OPT_BOOL, 68baacf047SPaolo Bonzini }, 69baacf047SPaolo Bonzini { /* end if list */ } 70baacf047SPaolo Bonzini }, 71baacf047SPaolo Bonzini }; 72baacf047SPaolo Bonzini 73baacf047SPaolo Bonzini static int inet_getport(struct addrinfo *e) 74baacf047SPaolo Bonzini { 75baacf047SPaolo Bonzini struct sockaddr_in *i4; 76baacf047SPaolo Bonzini struct sockaddr_in6 *i6; 77baacf047SPaolo Bonzini 78baacf047SPaolo Bonzini switch (e->ai_family) { 79baacf047SPaolo Bonzini case PF_INET6: 80baacf047SPaolo Bonzini i6 = (void*)e->ai_addr; 81baacf047SPaolo Bonzini return ntohs(i6->sin6_port); 82baacf047SPaolo Bonzini case PF_INET: 83baacf047SPaolo Bonzini i4 = (void*)e->ai_addr; 84baacf047SPaolo Bonzini return ntohs(i4->sin_port); 85baacf047SPaolo Bonzini default: 86baacf047SPaolo Bonzini return 0; 87baacf047SPaolo Bonzini } 88baacf047SPaolo Bonzini } 89baacf047SPaolo Bonzini 90baacf047SPaolo Bonzini static void inet_setport(struct addrinfo *e, int port) 91baacf047SPaolo Bonzini { 92baacf047SPaolo Bonzini struct sockaddr_in *i4; 93baacf047SPaolo Bonzini struct sockaddr_in6 *i6; 94baacf047SPaolo Bonzini 95baacf047SPaolo Bonzini switch (e->ai_family) { 96baacf047SPaolo Bonzini case PF_INET6: 97baacf047SPaolo Bonzini i6 = (void*)e->ai_addr; 98baacf047SPaolo Bonzini i6->sin6_port = htons(port); 99baacf047SPaolo Bonzini break; 100baacf047SPaolo Bonzini case PF_INET: 101baacf047SPaolo Bonzini i4 = (void*)e->ai_addr; 102baacf047SPaolo Bonzini i4->sin_port = htons(port); 103baacf047SPaolo Bonzini break; 104baacf047SPaolo Bonzini } 105baacf047SPaolo Bonzini } 106baacf047SPaolo Bonzini 107a589569fSWenchao Xia NetworkAddressFamily inet_netfamily(int family) 108a589569fSWenchao Xia { 109a589569fSWenchao Xia switch (family) { 110a589569fSWenchao Xia case PF_INET6: return NETWORK_ADDRESS_FAMILY_IPV6; 111a589569fSWenchao Xia case PF_INET: return NETWORK_ADDRESS_FAMILY_IPV4; 112a589569fSWenchao Xia case PF_UNIX: return NETWORK_ADDRESS_FAMILY_UNIX; 113a589569fSWenchao Xia } 114a589569fSWenchao Xia return NETWORK_ADDRESS_FAMILY_UNKNOWN; 115a589569fSWenchao Xia } 116a589569fSWenchao Xia 117baacf047SPaolo Bonzini int inet_listen_opts(QemuOpts *opts, int port_offset, Error **errp) 118baacf047SPaolo Bonzini { 119baacf047SPaolo Bonzini struct addrinfo ai,*res,*e; 120baacf047SPaolo Bonzini const char *addr; 121baacf047SPaolo Bonzini char port[33]; 122baacf047SPaolo Bonzini char uaddr[INET6_ADDRSTRLEN+1]; 123baacf047SPaolo Bonzini char uport[33]; 124baacf047SPaolo Bonzini int slisten, rc, to, port_min, port_max, p; 125baacf047SPaolo Bonzini 126baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 1273de3d698SWolfgang Bumiller ai.ai_flags = AI_PASSIVE; 128baacf047SPaolo Bonzini ai.ai_family = PF_UNSPEC; 129baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 130baacf047SPaolo Bonzini 131baacf047SPaolo Bonzini if ((qemu_opt_get(opts, "host") == NULL) || 132baacf047SPaolo Bonzini (qemu_opt_get(opts, "port") == NULL)) { 133baacf047SPaolo Bonzini error_setg(errp, "host and/or port not specified"); 134baacf047SPaolo Bonzini return -1; 135baacf047SPaolo Bonzini } 136baacf047SPaolo Bonzini pstrcpy(port, sizeof(port), qemu_opt_get(opts, "port")); 137baacf047SPaolo Bonzini addr = qemu_opt_get(opts, "host"); 138baacf047SPaolo Bonzini 139baacf047SPaolo Bonzini to = qemu_opt_get_number(opts, "to", 0); 140baacf047SPaolo Bonzini if (qemu_opt_get_bool(opts, "ipv4", 0)) 141baacf047SPaolo Bonzini ai.ai_family = PF_INET; 142baacf047SPaolo Bonzini if (qemu_opt_get_bool(opts, "ipv6", 0)) 143baacf047SPaolo Bonzini ai.ai_family = PF_INET6; 144baacf047SPaolo Bonzini 145baacf047SPaolo Bonzini /* lookup */ 1468bc89127SGerd Hoffmann if (port_offset) { 1478bc89127SGerd Hoffmann unsigned long long baseport; 1488bc89127SGerd Hoffmann if (parse_uint_full(port, &baseport, 10) < 0) { 1498bc89127SGerd Hoffmann error_setg(errp, "can't convert to a number: %s", port); 1508bc89127SGerd Hoffmann return -1; 1518bc89127SGerd Hoffmann } 1528bc89127SGerd Hoffmann if (baseport > 65535 || 1538bc89127SGerd Hoffmann baseport + port_offset > 65535) { 1548bc89127SGerd Hoffmann error_setg(errp, "port %s out of range", port); 1558bc89127SGerd Hoffmann return -1; 1568bc89127SGerd Hoffmann } 1578bc89127SGerd Hoffmann snprintf(port, sizeof(port), "%d", (int)baseport + port_offset); 1588bc89127SGerd Hoffmann } 159baacf047SPaolo Bonzini rc = getaddrinfo(strlen(addr) ? addr : NULL, port, &ai, &res); 160baacf047SPaolo Bonzini if (rc != 0) { 161baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 162baacf047SPaolo Bonzini gai_strerror(rc)); 163baacf047SPaolo Bonzini return -1; 164baacf047SPaolo Bonzini } 165baacf047SPaolo Bonzini 166baacf047SPaolo Bonzini /* create socket + bind */ 167baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 168baacf047SPaolo Bonzini getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen, 169baacf047SPaolo Bonzini uaddr,INET6_ADDRSTRLEN,uport,32, 170baacf047SPaolo Bonzini NI_NUMERICHOST | NI_NUMERICSERV); 171baacf047SPaolo Bonzini slisten = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol); 172baacf047SPaolo Bonzini if (slisten < 0) { 173baacf047SPaolo Bonzini if (!e->ai_next) { 174235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 175baacf047SPaolo Bonzini } 176baacf047SPaolo Bonzini continue; 177baacf047SPaolo Bonzini } 178baacf047SPaolo Bonzini 17904fd1c78SSebastian Ottlik socket_set_fast_reuse(slisten); 180baacf047SPaolo Bonzini #ifdef IPV6_V6ONLY 181baacf047SPaolo Bonzini if (e->ai_family == PF_INET6) { 182baacf047SPaolo Bonzini /* listen on both ipv4 and ipv6 */ 183f9b5426fSPeter Maydell const int off = 0; 1849957fc7fSStefan Weil qemu_setsockopt(slisten, IPPROTO_IPV6, IPV6_V6ONLY, &off, 185baacf047SPaolo Bonzini sizeof(off)); 186baacf047SPaolo Bonzini } 187baacf047SPaolo Bonzini #endif 188baacf047SPaolo Bonzini 189baacf047SPaolo Bonzini port_min = inet_getport(e); 190baacf047SPaolo Bonzini port_max = to ? to + port_offset : port_min; 191baacf047SPaolo Bonzini for (p = port_min; p <= port_max; p++) { 192baacf047SPaolo Bonzini inet_setport(e, p); 193baacf047SPaolo Bonzini if (bind(slisten, e->ai_addr, e->ai_addrlen) == 0) { 194baacf047SPaolo Bonzini goto listen; 195baacf047SPaolo Bonzini } 196baacf047SPaolo Bonzini if (p == port_max) { 197baacf047SPaolo Bonzini if (!e->ai_next) { 198235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 199baacf047SPaolo Bonzini } 200baacf047SPaolo Bonzini } 201baacf047SPaolo Bonzini } 202baacf047SPaolo Bonzini closesocket(slisten); 203baacf047SPaolo Bonzini } 204baacf047SPaolo Bonzini freeaddrinfo(res); 205baacf047SPaolo Bonzini return -1; 206baacf047SPaolo Bonzini 207baacf047SPaolo Bonzini listen: 208baacf047SPaolo Bonzini if (listen(slisten,1) != 0) { 209235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 210baacf047SPaolo Bonzini closesocket(slisten); 211baacf047SPaolo Bonzini freeaddrinfo(res); 212baacf047SPaolo Bonzini return -1; 213baacf047SPaolo Bonzini } 214f43e47dbSMarkus Armbruster qemu_opt_set(opts, "host", uaddr, &error_abort); 21562b3de69SMarkus Armbruster qemu_opt_set_number(opts, "port", inet_getport(e) - port_offset, 216f43e47dbSMarkus Armbruster &error_abort); 21762b3de69SMarkus Armbruster qemu_opt_set_bool(opts, "ipv6", e->ai_family == PF_INET6, 21862b3de69SMarkus Armbruster &error_abort); 21962b3de69SMarkus Armbruster qemu_opt_set_bool(opts, "ipv4", e->ai_family != PF_INET6, 220f43e47dbSMarkus Armbruster &error_abort); 221baacf047SPaolo Bonzini freeaddrinfo(res); 222baacf047SPaolo Bonzini return slisten; 223baacf047SPaolo Bonzini } 224baacf047SPaolo Bonzini 225baacf047SPaolo Bonzini #ifdef _WIN32 226baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 227baacf047SPaolo Bonzini ((rc) == -EINPROGRESS || (rc) == -EWOULDBLOCK || (rc) == -WSAEALREADY) 228baacf047SPaolo Bonzini #else 229baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 230baacf047SPaolo Bonzini ((rc) == -EINPROGRESS) 231baacf047SPaolo Bonzini #endif 232baacf047SPaolo Bonzini 233baacf047SPaolo Bonzini /* Struct to store connect state for non blocking connect */ 234baacf047SPaolo Bonzini typedef struct ConnectState { 235baacf047SPaolo Bonzini int fd; 236baacf047SPaolo Bonzini struct addrinfo *addr_list; 237baacf047SPaolo Bonzini struct addrinfo *current_addr; 238baacf047SPaolo Bonzini NonBlockingConnectHandler *callback; 239baacf047SPaolo Bonzini void *opaque; 240baacf047SPaolo Bonzini } ConnectState; 241baacf047SPaolo Bonzini 242baacf047SPaolo Bonzini static int inet_connect_addr(struct addrinfo *addr, bool *in_progress, 243baacf047SPaolo Bonzini ConnectState *connect_state, Error **errp); 244baacf047SPaolo Bonzini 245baacf047SPaolo Bonzini static void wait_for_connect(void *opaque) 246baacf047SPaolo Bonzini { 247baacf047SPaolo Bonzini ConnectState *s = opaque; 248baacf047SPaolo Bonzini int val = 0, rc = 0; 249baacf047SPaolo Bonzini socklen_t valsize = sizeof(val); 250baacf047SPaolo Bonzini bool in_progress; 25151795029SCorey Minyard Error *err = NULL; 252baacf047SPaolo Bonzini 25382e1cc4bSFam Zheng qemu_set_fd_handler(s->fd, NULL, NULL, NULL); 254baacf047SPaolo Bonzini 255baacf047SPaolo Bonzini do { 2569957fc7fSStefan Weil rc = qemu_getsockopt(s->fd, SOL_SOCKET, SO_ERROR, &val, &valsize); 257baacf047SPaolo Bonzini } while (rc == -1 && socket_error() == EINTR); 258baacf047SPaolo Bonzini 259baacf047SPaolo Bonzini /* update rc to contain error */ 260baacf047SPaolo Bonzini if (!rc && val) { 261baacf047SPaolo Bonzini rc = -1; 26251795029SCorey Minyard errno = val; 263baacf047SPaolo Bonzini } 264baacf047SPaolo Bonzini 265baacf047SPaolo Bonzini /* connect error */ 266baacf047SPaolo Bonzini if (rc < 0) { 26751795029SCorey Minyard error_setg_errno(&err, errno, "Error connecting to socket"); 268baacf047SPaolo Bonzini closesocket(s->fd); 269baacf047SPaolo Bonzini s->fd = rc; 270baacf047SPaolo Bonzini } 271baacf047SPaolo Bonzini 272baacf047SPaolo Bonzini /* try to connect to the next address on the list */ 273baacf047SPaolo Bonzini if (s->current_addr) { 274baacf047SPaolo Bonzini while (s->current_addr->ai_next != NULL && s->fd < 0) { 275baacf047SPaolo Bonzini s->current_addr = s->current_addr->ai_next; 276baacf047SPaolo Bonzini s->fd = inet_connect_addr(s->current_addr, &in_progress, s, NULL); 27751795029SCorey Minyard if (s->fd < 0) { 27851795029SCorey Minyard error_free(err); 27951795029SCorey Minyard err = NULL; 28051795029SCorey Minyard error_setg_errno(&err, errno, "Unable to start socket connect"); 28151795029SCorey Minyard } 282baacf047SPaolo Bonzini /* connect in progress */ 283baacf047SPaolo Bonzini if (in_progress) { 28451795029SCorey Minyard goto out; 285baacf047SPaolo Bonzini } 286baacf047SPaolo Bonzini } 287baacf047SPaolo Bonzini 288baacf047SPaolo Bonzini freeaddrinfo(s->addr_list); 289baacf047SPaolo Bonzini } 290baacf047SPaolo Bonzini 291baacf047SPaolo Bonzini if (s->callback) { 29251795029SCorey Minyard s->callback(s->fd, err, s->opaque); 293baacf047SPaolo Bonzini } 294baacf047SPaolo Bonzini g_free(s); 29551795029SCorey Minyard out: 29651795029SCorey Minyard error_free(err); 297baacf047SPaolo Bonzini } 298baacf047SPaolo Bonzini 299baacf047SPaolo Bonzini static int inet_connect_addr(struct addrinfo *addr, bool *in_progress, 300baacf047SPaolo Bonzini ConnectState *connect_state, Error **errp) 301baacf047SPaolo Bonzini { 302baacf047SPaolo Bonzini int sock, rc; 303baacf047SPaolo Bonzini 304baacf047SPaolo Bonzini *in_progress = false; 305baacf047SPaolo Bonzini 306baacf047SPaolo Bonzini sock = qemu_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol); 307baacf047SPaolo Bonzini if (sock < 0) { 308235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 309baacf047SPaolo Bonzini return -1; 310baacf047SPaolo Bonzini } 31104fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 312baacf047SPaolo Bonzini if (connect_state != NULL) { 313f9e8caccSStefan Hajnoczi qemu_set_nonblock(sock); 314baacf047SPaolo Bonzini } 315baacf047SPaolo Bonzini /* connect to peer */ 316baacf047SPaolo Bonzini do { 317baacf047SPaolo Bonzini rc = 0; 318baacf047SPaolo Bonzini if (connect(sock, addr->ai_addr, addr->ai_addrlen) < 0) { 319baacf047SPaolo Bonzini rc = -socket_error(); 320baacf047SPaolo Bonzini } 321baacf047SPaolo Bonzini } while (rc == -EINTR); 322baacf047SPaolo Bonzini 323baacf047SPaolo Bonzini if (connect_state != NULL && QEMU_SOCKET_RC_INPROGRESS(rc)) { 324baacf047SPaolo Bonzini connect_state->fd = sock; 32582e1cc4bSFam Zheng qemu_set_fd_handler(sock, NULL, wait_for_connect, connect_state); 326baacf047SPaolo Bonzini *in_progress = true; 327baacf047SPaolo Bonzini } else if (rc < 0) { 328235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 329baacf047SPaolo Bonzini closesocket(sock); 330baacf047SPaolo Bonzini return -1; 331baacf047SPaolo Bonzini } 332baacf047SPaolo Bonzini return sock; 333baacf047SPaolo Bonzini } 334baacf047SPaolo Bonzini 335baacf047SPaolo Bonzini static struct addrinfo *inet_parse_connect_opts(QemuOpts *opts, Error **errp) 336baacf047SPaolo Bonzini { 337baacf047SPaolo Bonzini struct addrinfo ai, *res; 338baacf047SPaolo Bonzini int rc; 339baacf047SPaolo Bonzini const char *addr; 340baacf047SPaolo Bonzini const char *port; 341baacf047SPaolo Bonzini 342baacf047SPaolo Bonzini memset(&ai, 0, sizeof(ai)); 343baacf047SPaolo Bonzini 3443de3d698SWolfgang Bumiller ai.ai_flags = AI_CANONNAME | AI_V4MAPPED | AI_ADDRCONFIG; 345baacf047SPaolo Bonzini ai.ai_family = PF_UNSPEC; 346baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 347baacf047SPaolo Bonzini 348baacf047SPaolo Bonzini addr = qemu_opt_get(opts, "host"); 349baacf047SPaolo Bonzini port = qemu_opt_get(opts, "port"); 350baacf047SPaolo Bonzini if (addr == NULL || port == NULL) { 351baacf047SPaolo Bonzini error_setg(errp, "host and/or port not specified"); 352baacf047SPaolo Bonzini return NULL; 353baacf047SPaolo Bonzini } 354baacf047SPaolo Bonzini 355baacf047SPaolo Bonzini if (qemu_opt_get_bool(opts, "ipv4", 0)) { 356baacf047SPaolo Bonzini ai.ai_family = PF_INET; 357baacf047SPaolo Bonzini } 358baacf047SPaolo Bonzini if (qemu_opt_get_bool(opts, "ipv6", 0)) { 359baacf047SPaolo Bonzini ai.ai_family = PF_INET6; 360baacf047SPaolo Bonzini } 361baacf047SPaolo Bonzini 362baacf047SPaolo Bonzini /* lookup */ 363baacf047SPaolo Bonzini rc = getaddrinfo(addr, port, &ai, &res); 364baacf047SPaolo Bonzini if (rc != 0) { 365baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 366baacf047SPaolo Bonzini gai_strerror(rc)); 367baacf047SPaolo Bonzini return NULL; 368baacf047SPaolo Bonzini } 369baacf047SPaolo Bonzini return res; 370baacf047SPaolo Bonzini } 371baacf047SPaolo Bonzini 372baacf047SPaolo Bonzini /** 373baacf047SPaolo Bonzini * Create a socket and connect it to an address. 374baacf047SPaolo Bonzini * 375baacf047SPaolo Bonzini * @opts: QEMU options, recognized parameters strings "host" and "port", 376baacf047SPaolo Bonzini * bools "ipv4" and "ipv6". 377baacf047SPaolo Bonzini * @errp: set on error 378baacf047SPaolo Bonzini * @callback: callback function for non-blocking connect 379baacf047SPaolo Bonzini * @opaque: opaque for callback function 380baacf047SPaolo Bonzini * 381baacf047SPaolo Bonzini * Returns: -1 on error, file descriptor on success. 382baacf047SPaolo Bonzini * 383baacf047SPaolo Bonzini * If @callback is non-null, the connect is non-blocking. If this 384baacf047SPaolo Bonzini * function succeeds, callback will be called when the connection 385baacf047SPaolo Bonzini * completes, with the file descriptor on success, or -1 on error. 386baacf047SPaolo Bonzini */ 387baacf047SPaolo Bonzini int inet_connect_opts(QemuOpts *opts, Error **errp, 388baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, void *opaque) 389baacf047SPaolo Bonzini { 3903f9286b7SMarkus Armbruster Error *local_err = NULL; 391baacf047SPaolo Bonzini struct addrinfo *res, *e; 392baacf047SPaolo Bonzini int sock = -1; 393baacf047SPaolo Bonzini bool in_progress; 394baacf047SPaolo Bonzini ConnectState *connect_state = NULL; 395baacf047SPaolo Bonzini 396baacf047SPaolo Bonzini res = inet_parse_connect_opts(opts, errp); 397baacf047SPaolo Bonzini if (!res) { 398baacf047SPaolo Bonzini return -1; 399baacf047SPaolo Bonzini } 400baacf047SPaolo Bonzini 401baacf047SPaolo Bonzini if (callback != NULL) { 402baacf047SPaolo Bonzini connect_state = g_malloc0(sizeof(*connect_state)); 403baacf047SPaolo Bonzini connect_state->addr_list = res; 404baacf047SPaolo Bonzini connect_state->callback = callback; 405baacf047SPaolo Bonzini connect_state->opaque = opaque; 406baacf047SPaolo Bonzini } 407baacf047SPaolo Bonzini 408baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 4093f9286b7SMarkus Armbruster error_free(local_err); 4103f9286b7SMarkus Armbruster local_err = NULL; 411baacf047SPaolo Bonzini if (connect_state != NULL) { 412baacf047SPaolo Bonzini connect_state->current_addr = e; 413baacf047SPaolo Bonzini } 4143f9286b7SMarkus Armbruster sock = inet_connect_addr(e, &in_progress, connect_state, &local_err); 4153f9286b7SMarkus Armbruster if (sock >= 0) { 416baacf047SPaolo Bonzini break; 417baacf047SPaolo Bonzini } 418baacf047SPaolo Bonzini } 4193f9286b7SMarkus Armbruster 4203f9286b7SMarkus Armbruster if (sock < 0) { 4213f9286b7SMarkus Armbruster error_propagate(errp, local_err); 4223f9286b7SMarkus Armbruster } else if (in_progress) { 4233f9286b7SMarkus Armbruster /* wait_for_connect() will do the rest */ 4243f9286b7SMarkus Armbruster return sock; 4253f9286b7SMarkus Armbruster } else { 4263f9286b7SMarkus Armbruster if (callback) { 42751795029SCorey Minyard callback(sock, NULL, opaque); 4283f9286b7SMarkus Armbruster } 4293f9286b7SMarkus Armbruster } 430baacf047SPaolo Bonzini g_free(connect_state); 431baacf047SPaolo Bonzini freeaddrinfo(res); 432baacf047SPaolo Bonzini return sock; 433baacf047SPaolo Bonzini } 434baacf047SPaolo Bonzini 435baacf047SPaolo Bonzini int inet_dgram_opts(QemuOpts *opts, Error **errp) 436baacf047SPaolo Bonzini { 437baacf047SPaolo Bonzini struct addrinfo ai, *peer = NULL, *local = NULL; 438baacf047SPaolo Bonzini const char *addr; 439baacf047SPaolo Bonzini const char *port; 440baacf047SPaolo Bonzini int sock = -1, rc; 441baacf047SPaolo Bonzini 442baacf047SPaolo Bonzini /* lookup peer addr */ 443baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 4443de3d698SWolfgang Bumiller ai.ai_flags = AI_CANONNAME | AI_V4MAPPED | AI_ADDRCONFIG; 445baacf047SPaolo Bonzini ai.ai_family = PF_UNSPEC; 446baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 447baacf047SPaolo Bonzini 448baacf047SPaolo Bonzini addr = qemu_opt_get(opts, "host"); 449baacf047SPaolo Bonzini port = qemu_opt_get(opts, "port"); 450baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 451baacf047SPaolo Bonzini addr = "localhost"; 452baacf047SPaolo Bonzini } 453baacf047SPaolo Bonzini if (port == NULL || strlen(port) == 0) { 454baacf047SPaolo Bonzini error_setg(errp, "remote port not specified"); 455baacf047SPaolo Bonzini return -1; 456baacf047SPaolo Bonzini } 457baacf047SPaolo Bonzini 458baacf047SPaolo Bonzini if (qemu_opt_get_bool(opts, "ipv4", 0)) 459baacf047SPaolo Bonzini ai.ai_family = PF_INET; 460baacf047SPaolo Bonzini if (qemu_opt_get_bool(opts, "ipv6", 0)) 461baacf047SPaolo Bonzini ai.ai_family = PF_INET6; 462baacf047SPaolo Bonzini 463baacf047SPaolo Bonzini if (0 != (rc = getaddrinfo(addr, port, &ai, &peer))) { 464baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 465baacf047SPaolo Bonzini gai_strerror(rc)); 466baacf047SPaolo Bonzini return -1; 467baacf047SPaolo Bonzini } 468baacf047SPaolo Bonzini 469baacf047SPaolo Bonzini /* lookup local addr */ 470baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 471baacf047SPaolo Bonzini ai.ai_flags = AI_PASSIVE; 472baacf047SPaolo Bonzini ai.ai_family = peer->ai_family; 473baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 474baacf047SPaolo Bonzini 475baacf047SPaolo Bonzini addr = qemu_opt_get(opts, "localaddr"); 476baacf047SPaolo Bonzini port = qemu_opt_get(opts, "localport"); 477baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 478baacf047SPaolo Bonzini addr = NULL; 479baacf047SPaolo Bonzini } 480baacf047SPaolo Bonzini if (!port || strlen(port) == 0) 481baacf047SPaolo Bonzini port = "0"; 482baacf047SPaolo Bonzini 483baacf047SPaolo Bonzini if (0 != (rc = getaddrinfo(addr, port, &ai, &local))) { 484baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 485baacf047SPaolo Bonzini gai_strerror(rc)); 486baacf047SPaolo Bonzini goto err; 487baacf047SPaolo Bonzini } 488baacf047SPaolo Bonzini 489baacf047SPaolo Bonzini /* create socket */ 490baacf047SPaolo Bonzini sock = qemu_socket(peer->ai_family, peer->ai_socktype, peer->ai_protocol); 491baacf047SPaolo Bonzini if (sock < 0) { 492235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 493baacf047SPaolo Bonzini goto err; 494baacf047SPaolo Bonzini } 49504fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 496baacf047SPaolo Bonzini 497baacf047SPaolo Bonzini /* bind socket */ 498baacf047SPaolo Bonzini if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) { 499235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 500baacf047SPaolo Bonzini goto err; 501baacf047SPaolo Bonzini } 502baacf047SPaolo Bonzini 503baacf047SPaolo Bonzini /* connect to peer */ 504baacf047SPaolo Bonzini if (connect(sock,peer->ai_addr,peer->ai_addrlen) < 0) { 505235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 506baacf047SPaolo Bonzini goto err; 507baacf047SPaolo Bonzini } 508baacf047SPaolo Bonzini 509baacf047SPaolo Bonzini freeaddrinfo(local); 510baacf047SPaolo Bonzini freeaddrinfo(peer); 511baacf047SPaolo Bonzini return sock; 512baacf047SPaolo Bonzini 513baacf047SPaolo Bonzini err: 514baacf047SPaolo Bonzini if (-1 != sock) 515baacf047SPaolo Bonzini closesocket(sock); 516baacf047SPaolo Bonzini if (local) 517baacf047SPaolo Bonzini freeaddrinfo(local); 518baacf047SPaolo Bonzini if (peer) 519baacf047SPaolo Bonzini freeaddrinfo(peer); 520baacf047SPaolo Bonzini return -1; 521baacf047SPaolo Bonzini } 522baacf047SPaolo Bonzini 523baacf047SPaolo Bonzini /* compatibility wrapper */ 524f17c90beSKevin Wolf InetSocketAddress *inet_parse(const char *str, Error **errp) 525baacf047SPaolo Bonzini { 526baacf047SPaolo Bonzini InetSocketAddress *addr; 527baacf047SPaolo Bonzini const char *optstr, *h; 52855a10996SKevin Wolf char host[65]; 529baacf047SPaolo Bonzini char port[33]; 530baacf047SPaolo Bonzini int to; 531baacf047SPaolo Bonzini int pos; 532baacf047SPaolo Bonzini 533baacf047SPaolo Bonzini addr = g_new0(InetSocketAddress, 1); 534baacf047SPaolo Bonzini 535baacf047SPaolo Bonzini /* parse address */ 536baacf047SPaolo Bonzini if (str[0] == ':') { 537baacf047SPaolo Bonzini /* no host given */ 538baacf047SPaolo Bonzini host[0] = '\0'; 539baacf047SPaolo Bonzini if (1 != sscanf(str, ":%32[^,]%n", port, &pos)) { 540baacf047SPaolo Bonzini error_setg(errp, "error parsing port in address '%s'", str); 541baacf047SPaolo Bonzini goto fail; 542baacf047SPaolo Bonzini } 543baacf047SPaolo Bonzini } else if (str[0] == '[') { 544baacf047SPaolo Bonzini /* IPv6 addr */ 545baacf047SPaolo Bonzini if (2 != sscanf(str, "[%64[^]]]:%32[^,]%n", host, port, &pos)) { 546baacf047SPaolo Bonzini error_setg(errp, "error parsing IPv6 address '%s'", str); 547baacf047SPaolo Bonzini goto fail; 548baacf047SPaolo Bonzini } 549baacf047SPaolo Bonzini addr->ipv6 = addr->has_ipv6 = true; 550baacf047SPaolo Bonzini } else { 551391b7b97SJán Tomko /* hostname or IPv4 addr */ 552baacf047SPaolo Bonzini if (2 != sscanf(str, "%64[^:]:%32[^,]%n", host, port, &pos)) { 553baacf047SPaolo Bonzini error_setg(errp, "error parsing address '%s'", str); 554baacf047SPaolo Bonzini goto fail; 555baacf047SPaolo Bonzini } 556391b7b97SJán Tomko if (host[strspn(host, "0123456789.")] == '\0') { 557391b7b97SJán Tomko addr->ipv4 = addr->has_ipv4 = true; 558391b7b97SJán Tomko } 559baacf047SPaolo Bonzini } 560baacf047SPaolo Bonzini 561baacf047SPaolo Bonzini addr->host = g_strdup(host); 562baacf047SPaolo Bonzini addr->port = g_strdup(port); 563baacf047SPaolo Bonzini 564baacf047SPaolo Bonzini /* parse options */ 565baacf047SPaolo Bonzini optstr = str + pos; 566baacf047SPaolo Bonzini h = strstr(optstr, ",to="); 567baacf047SPaolo Bonzini if (h) { 568baacf047SPaolo Bonzini h += 4; 569baacf047SPaolo Bonzini if (sscanf(h, "%d%n", &to, &pos) != 1 || 570baacf047SPaolo Bonzini (h[pos] != '\0' && h[pos] != ',')) { 571baacf047SPaolo Bonzini error_setg(errp, "error parsing to= argument"); 572baacf047SPaolo Bonzini goto fail; 573baacf047SPaolo Bonzini } 574baacf047SPaolo Bonzini addr->has_to = true; 575baacf047SPaolo Bonzini addr->to = to; 576baacf047SPaolo Bonzini } 577baacf047SPaolo Bonzini if (strstr(optstr, ",ipv4")) { 578baacf047SPaolo Bonzini addr->ipv4 = addr->has_ipv4 = true; 579baacf047SPaolo Bonzini } 580baacf047SPaolo Bonzini if (strstr(optstr, ",ipv6")) { 581baacf047SPaolo Bonzini addr->ipv6 = addr->has_ipv6 = true; 582baacf047SPaolo Bonzini } 583baacf047SPaolo Bonzini return addr; 584baacf047SPaolo Bonzini 585baacf047SPaolo Bonzini fail: 586baacf047SPaolo Bonzini qapi_free_InetSocketAddress(addr); 587baacf047SPaolo Bonzini return NULL; 588baacf047SPaolo Bonzini } 589baacf047SPaolo Bonzini 590f17c90beSKevin Wolf static void inet_addr_to_opts(QemuOpts *opts, const InetSocketAddress *addr) 591baacf047SPaolo Bonzini { 592b77e7c8eSPaolo Bonzini bool ipv4 = addr->has_ipv4 && addr->ipv4; 593b77e7c8eSPaolo Bonzini bool ipv6 = addr->has_ipv6 && addr->ipv6; 594baacf047SPaolo Bonzini 595b77e7c8eSPaolo Bonzini if (ipv4 || ipv6) { 596cccb7967SMarkus Armbruster qemu_opt_set_bool(opts, "ipv4", ipv4, &error_abort); 597cccb7967SMarkus Armbruster qemu_opt_set_bool(opts, "ipv6", ipv6, &error_abort); 598b77e7c8eSPaolo Bonzini } else if (addr->has_ipv4 || addr->has_ipv6) { 599b77e7c8eSPaolo Bonzini qemu_opt_set_bool(opts, "ipv4", !addr->has_ipv4, &error_abort); 600b77e7c8eSPaolo Bonzini qemu_opt_set_bool(opts, "ipv6", !addr->has_ipv6, &error_abort); 601baacf047SPaolo Bonzini } 602baacf047SPaolo Bonzini if (addr->has_to) { 60362b3de69SMarkus Armbruster qemu_opt_set_number(opts, "to", addr->to, &error_abort); 604baacf047SPaolo Bonzini } 605f43e47dbSMarkus Armbruster qemu_opt_set(opts, "host", addr->host, &error_abort); 606f43e47dbSMarkus Armbruster qemu_opt_set(opts, "port", addr->port, &error_abort); 607baacf047SPaolo Bonzini } 608baacf047SPaolo Bonzini 609baacf047SPaolo Bonzini int inet_listen(const char *str, char *ostr, int olen, 610baacf047SPaolo Bonzini int socktype, int port_offset, Error **errp) 611baacf047SPaolo Bonzini { 612baacf047SPaolo Bonzini QemuOpts *opts; 613baacf047SPaolo Bonzini char *optstr; 614baacf047SPaolo Bonzini int sock = -1; 615baacf047SPaolo Bonzini InetSocketAddress *addr; 616baacf047SPaolo Bonzini 617baacf047SPaolo Bonzini addr = inet_parse(str, errp); 618baacf047SPaolo Bonzini if (addr != NULL) { 61987ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 620baacf047SPaolo Bonzini inet_addr_to_opts(opts, addr); 621baacf047SPaolo Bonzini qapi_free_InetSocketAddress(addr); 622baacf047SPaolo Bonzini sock = inet_listen_opts(opts, port_offset, errp); 623baacf047SPaolo Bonzini if (sock != -1 && ostr) { 624baacf047SPaolo Bonzini optstr = strchr(str, ','); 625baacf047SPaolo Bonzini if (qemu_opt_get_bool(opts, "ipv6", 0)) { 626baacf047SPaolo Bonzini snprintf(ostr, olen, "[%s]:%s%s", 627baacf047SPaolo Bonzini qemu_opt_get(opts, "host"), 628baacf047SPaolo Bonzini qemu_opt_get(opts, "port"), 629baacf047SPaolo Bonzini optstr ? optstr : ""); 630baacf047SPaolo Bonzini } else { 631baacf047SPaolo Bonzini snprintf(ostr, olen, "%s:%s%s", 632baacf047SPaolo Bonzini qemu_opt_get(opts, "host"), 633baacf047SPaolo Bonzini qemu_opt_get(opts, "port"), 634baacf047SPaolo Bonzini optstr ? optstr : ""); 635baacf047SPaolo Bonzini } 636baacf047SPaolo Bonzini } 637baacf047SPaolo Bonzini qemu_opts_del(opts); 638baacf047SPaolo Bonzini } 639baacf047SPaolo Bonzini return sock; 640baacf047SPaolo Bonzini } 641baacf047SPaolo Bonzini 642baacf047SPaolo Bonzini /** 643baacf047SPaolo Bonzini * Create a blocking socket and connect it to an address. 644baacf047SPaolo Bonzini * 645baacf047SPaolo Bonzini * @str: address string 646baacf047SPaolo Bonzini * @errp: set in case of an error 647baacf047SPaolo Bonzini * 648baacf047SPaolo Bonzini * Returns -1 in case of error, file descriptor on success 649baacf047SPaolo Bonzini **/ 650baacf047SPaolo Bonzini int inet_connect(const char *str, Error **errp) 651baacf047SPaolo Bonzini { 652baacf047SPaolo Bonzini QemuOpts *opts; 653baacf047SPaolo Bonzini int sock = -1; 654baacf047SPaolo Bonzini InetSocketAddress *addr; 655baacf047SPaolo Bonzini 656baacf047SPaolo Bonzini addr = inet_parse(str, errp); 657baacf047SPaolo Bonzini if (addr != NULL) { 65887ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 659baacf047SPaolo Bonzini inet_addr_to_opts(opts, addr); 660baacf047SPaolo Bonzini qapi_free_InetSocketAddress(addr); 661baacf047SPaolo Bonzini sock = inet_connect_opts(opts, errp, NULL, NULL); 662baacf047SPaolo Bonzini qemu_opts_del(opts); 663baacf047SPaolo Bonzini } 664baacf047SPaolo Bonzini return sock; 665baacf047SPaolo Bonzini } 666baacf047SPaolo Bonzini 667baacf047SPaolo Bonzini /** 668baacf047SPaolo Bonzini * Create a non-blocking socket and connect it to an address. 669baacf047SPaolo Bonzini * Calls the callback function with fd in case of success or -1 in case of 670baacf047SPaolo Bonzini * error. 671baacf047SPaolo Bonzini * 672baacf047SPaolo Bonzini * @str: address string 673baacf047SPaolo Bonzini * @callback: callback function that is called when connect completes, 674baacf047SPaolo Bonzini * cannot be NULL. 675baacf047SPaolo Bonzini * @opaque: opaque for callback function 676baacf047SPaolo Bonzini * @errp: set in case of an error 677baacf047SPaolo Bonzini * 678baacf047SPaolo Bonzini * Returns: -1 on immediate error, file descriptor on success. 679baacf047SPaolo Bonzini **/ 680baacf047SPaolo Bonzini int inet_nonblocking_connect(const char *str, 681baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, 682baacf047SPaolo Bonzini void *opaque, Error **errp) 683baacf047SPaolo Bonzini { 684baacf047SPaolo Bonzini QemuOpts *opts; 685baacf047SPaolo Bonzini int sock = -1; 686baacf047SPaolo Bonzini InetSocketAddress *addr; 687baacf047SPaolo Bonzini 688baacf047SPaolo Bonzini g_assert(callback != NULL); 689baacf047SPaolo Bonzini 690baacf047SPaolo Bonzini addr = inet_parse(str, errp); 691baacf047SPaolo Bonzini if (addr != NULL) { 69287ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 693baacf047SPaolo Bonzini inet_addr_to_opts(opts, addr); 694baacf047SPaolo Bonzini qapi_free_InetSocketAddress(addr); 695baacf047SPaolo Bonzini sock = inet_connect_opts(opts, errp, callback, opaque); 696baacf047SPaolo Bonzini qemu_opts_del(opts); 697baacf047SPaolo Bonzini } 698baacf047SPaolo Bonzini return sock; 699baacf047SPaolo Bonzini } 700baacf047SPaolo Bonzini 701baacf047SPaolo Bonzini #ifndef _WIN32 702baacf047SPaolo Bonzini 703baacf047SPaolo Bonzini int unix_listen_opts(QemuOpts *opts, Error **errp) 704baacf047SPaolo Bonzini { 705baacf047SPaolo Bonzini struct sockaddr_un un; 706baacf047SPaolo Bonzini const char *path = qemu_opt_get(opts, "path"); 707baacf047SPaolo Bonzini int sock, fd; 708baacf047SPaolo Bonzini 709baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 710baacf047SPaolo Bonzini if (sock < 0) { 711b658c53dSPaolo Bonzini error_setg_errno(errp, errno, "Failed to create Unix socket"); 712baacf047SPaolo Bonzini return -1; 713baacf047SPaolo Bonzini } 714baacf047SPaolo Bonzini 715baacf047SPaolo Bonzini memset(&un, 0, sizeof(un)); 716baacf047SPaolo Bonzini un.sun_family = AF_UNIX; 717baacf047SPaolo Bonzini if (path && strlen(path)) { 718baacf047SPaolo Bonzini snprintf(un.sun_path, sizeof(un.sun_path), "%s", path); 719baacf047SPaolo Bonzini } else { 720b658c53dSPaolo Bonzini const char *tmpdir = getenv("TMPDIR"); 721b658c53dSPaolo Bonzini tmpdir = tmpdir ? tmpdir : "/tmp"; 722b658c53dSPaolo Bonzini if (snprintf(un.sun_path, sizeof(un.sun_path), "%s/qemu-socket-XXXXXX", 723b658c53dSPaolo Bonzini tmpdir) >= sizeof(un.sun_path)) { 724b658c53dSPaolo Bonzini error_setg_errno(errp, errno, 725b658c53dSPaolo Bonzini "TMPDIR environment variable (%s) too large", tmpdir); 726b658c53dSPaolo Bonzini goto err; 727b658c53dSPaolo Bonzini } 728b658c53dSPaolo Bonzini 729baacf047SPaolo Bonzini /* 730baacf047SPaolo Bonzini * This dummy fd usage silences the mktemp() unsecure warning. 731baacf047SPaolo Bonzini * Using mkstemp() doesn't make things more secure here 732baacf047SPaolo Bonzini * though. bind() complains about existing files, so we have 733baacf047SPaolo Bonzini * to unlink first and thus re-open the race window. The 734baacf047SPaolo Bonzini * worst case possible is bind() failing, i.e. a DoS attack. 735baacf047SPaolo Bonzini */ 736b658c53dSPaolo Bonzini fd = mkstemp(un.sun_path); 737b658c53dSPaolo Bonzini if (fd < 0) { 738b658c53dSPaolo Bonzini error_setg_errno(errp, errno, 739b658c53dSPaolo Bonzini "Failed to make a temporary socket name in %s", tmpdir); 740b658c53dSPaolo Bonzini goto err; 741b658c53dSPaolo Bonzini } 742b658c53dSPaolo Bonzini close(fd); 743f43e47dbSMarkus Armbruster qemu_opt_set(opts, "path", un.sun_path, &error_abort); 744baacf047SPaolo Bonzini } 745baacf047SPaolo Bonzini 7460ef705a2SCole Robinson if ((access(un.sun_path, F_OK) == 0) && 7470ef705a2SCole Robinson unlink(un.sun_path) < 0) { 7480ef705a2SCole Robinson error_setg_errno(errp, errno, 7490ef705a2SCole Robinson "Failed to unlink socket %s", un.sun_path); 7500ef705a2SCole Robinson goto err; 7510ef705a2SCole Robinson } 752baacf047SPaolo Bonzini if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) { 753b658c53dSPaolo Bonzini error_setg_errno(errp, errno, "Failed to bind socket to %s", un.sun_path); 754baacf047SPaolo Bonzini goto err; 755baacf047SPaolo Bonzini } 756baacf047SPaolo Bonzini if (listen(sock, 1) < 0) { 757235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 758baacf047SPaolo Bonzini goto err; 759baacf047SPaolo Bonzini } 760baacf047SPaolo Bonzini 761baacf047SPaolo Bonzini return sock; 762baacf047SPaolo Bonzini 763baacf047SPaolo Bonzini err: 764baacf047SPaolo Bonzini closesocket(sock); 765baacf047SPaolo Bonzini return -1; 766baacf047SPaolo Bonzini } 767baacf047SPaolo Bonzini 768baacf047SPaolo Bonzini int unix_connect_opts(QemuOpts *opts, Error **errp, 769baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, void *opaque) 770baacf047SPaolo Bonzini { 771baacf047SPaolo Bonzini struct sockaddr_un un; 772baacf047SPaolo Bonzini const char *path = qemu_opt_get(opts, "path"); 773baacf047SPaolo Bonzini ConnectState *connect_state = NULL; 774baacf047SPaolo Bonzini int sock, rc; 775baacf047SPaolo Bonzini 7768108fd3eSGonglei if (path == NULL) { 777312fd5f2SMarkus Armbruster error_setg(errp, "unix connect: no path specified"); 778baacf047SPaolo Bonzini return -1; 779baacf047SPaolo Bonzini } 780baacf047SPaolo Bonzini 781baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 782baacf047SPaolo Bonzini if (sock < 0) { 783235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 784baacf047SPaolo Bonzini return -1; 785baacf047SPaolo Bonzini } 786baacf047SPaolo Bonzini if (callback != NULL) { 787baacf047SPaolo Bonzini connect_state = g_malloc0(sizeof(*connect_state)); 788baacf047SPaolo Bonzini connect_state->callback = callback; 789baacf047SPaolo Bonzini connect_state->opaque = opaque; 790f9e8caccSStefan Hajnoczi qemu_set_nonblock(sock); 791baacf047SPaolo Bonzini } 792baacf047SPaolo Bonzini 793baacf047SPaolo Bonzini memset(&un, 0, sizeof(un)); 794baacf047SPaolo Bonzini un.sun_family = AF_UNIX; 795baacf047SPaolo Bonzini snprintf(un.sun_path, sizeof(un.sun_path), "%s", path); 796baacf047SPaolo Bonzini 797baacf047SPaolo Bonzini /* connect to peer */ 798baacf047SPaolo Bonzini do { 799baacf047SPaolo Bonzini rc = 0; 800baacf047SPaolo Bonzini if (connect(sock, (struct sockaddr *) &un, sizeof(un)) < 0) { 801baacf047SPaolo Bonzini rc = -socket_error(); 802baacf047SPaolo Bonzini } 803baacf047SPaolo Bonzini } while (rc == -EINTR); 804baacf047SPaolo Bonzini 805baacf047SPaolo Bonzini if (connect_state != NULL && QEMU_SOCKET_RC_INPROGRESS(rc)) { 806baacf047SPaolo Bonzini connect_state->fd = sock; 80782e1cc4bSFam Zheng qemu_set_fd_handler(sock, NULL, wait_for_connect, connect_state); 808baacf047SPaolo Bonzini return sock; 809baacf047SPaolo Bonzini } else if (rc >= 0) { 810baacf047SPaolo Bonzini /* non blocking socket immediate success, call callback */ 811baacf047SPaolo Bonzini if (callback != NULL) { 81251795029SCorey Minyard callback(sock, NULL, opaque); 813baacf047SPaolo Bonzini } 814baacf047SPaolo Bonzini } 815baacf047SPaolo Bonzini 816baacf047SPaolo Bonzini if (rc < 0) { 817235256a2SMarkus Armbruster error_setg_errno(errp, -rc, "Failed to connect socket"); 818baacf047SPaolo Bonzini close(sock); 819baacf047SPaolo Bonzini sock = -1; 820baacf047SPaolo Bonzini } 821baacf047SPaolo Bonzini 822baacf047SPaolo Bonzini g_free(connect_state); 823baacf047SPaolo Bonzini return sock; 824baacf047SPaolo Bonzini } 825baacf047SPaolo Bonzini 826baacf047SPaolo Bonzini #else 827baacf047SPaolo Bonzini 828baacf047SPaolo Bonzini int unix_listen_opts(QemuOpts *opts, Error **errp) 829baacf047SPaolo Bonzini { 830baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 831baacf047SPaolo Bonzini errno = ENOTSUP; 832baacf047SPaolo Bonzini return -1; 833baacf047SPaolo Bonzini } 834baacf047SPaolo Bonzini 835baacf047SPaolo Bonzini int unix_connect_opts(QemuOpts *opts, Error **errp, 836baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, void *opaque) 837baacf047SPaolo Bonzini { 838baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 839baacf047SPaolo Bonzini errno = ENOTSUP; 840baacf047SPaolo Bonzini return -1; 841baacf047SPaolo Bonzini } 842baacf047SPaolo Bonzini #endif 843baacf047SPaolo Bonzini 844baacf047SPaolo Bonzini /* compatibility wrapper */ 845baacf047SPaolo Bonzini int unix_listen(const char *str, char *ostr, int olen, Error **errp) 846baacf047SPaolo Bonzini { 847baacf047SPaolo Bonzini QemuOpts *opts; 848baacf047SPaolo Bonzini char *path, *optstr; 849baacf047SPaolo Bonzini int sock, len; 850baacf047SPaolo Bonzini 85187ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 852baacf047SPaolo Bonzini 853baacf047SPaolo Bonzini optstr = strchr(str, ','); 854baacf047SPaolo Bonzini if (optstr) { 855baacf047SPaolo Bonzini len = optstr - str; 856baacf047SPaolo Bonzini if (len) { 857baacf047SPaolo Bonzini path = g_malloc(len+1); 858baacf047SPaolo Bonzini snprintf(path, len+1, "%.*s", len, str); 859f43e47dbSMarkus Armbruster qemu_opt_set(opts, "path", path, &error_abort); 860baacf047SPaolo Bonzini g_free(path); 861baacf047SPaolo Bonzini } 862baacf047SPaolo Bonzini } else { 863f43e47dbSMarkus Armbruster qemu_opt_set(opts, "path", str, &error_abort); 864baacf047SPaolo Bonzini } 865baacf047SPaolo Bonzini 866baacf047SPaolo Bonzini sock = unix_listen_opts(opts, errp); 867baacf047SPaolo Bonzini 868baacf047SPaolo Bonzini if (sock != -1 && ostr) 869baacf047SPaolo Bonzini snprintf(ostr, olen, "%s%s", qemu_opt_get(opts, "path"), optstr ? optstr : ""); 870baacf047SPaolo Bonzini qemu_opts_del(opts); 871baacf047SPaolo Bonzini return sock; 872baacf047SPaolo Bonzini } 873baacf047SPaolo Bonzini 874baacf047SPaolo Bonzini int unix_connect(const char *path, Error **errp) 875baacf047SPaolo Bonzini { 876baacf047SPaolo Bonzini QemuOpts *opts; 877baacf047SPaolo Bonzini int sock; 878baacf047SPaolo Bonzini 87987ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 880f43e47dbSMarkus Armbruster qemu_opt_set(opts, "path", path, &error_abort); 881baacf047SPaolo Bonzini sock = unix_connect_opts(opts, errp, NULL, NULL); 882baacf047SPaolo Bonzini qemu_opts_del(opts); 883baacf047SPaolo Bonzini return sock; 884baacf047SPaolo Bonzini } 885baacf047SPaolo Bonzini 886baacf047SPaolo Bonzini 887baacf047SPaolo Bonzini int unix_nonblocking_connect(const char *path, 888baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, 889baacf047SPaolo Bonzini void *opaque, Error **errp) 890baacf047SPaolo Bonzini { 891baacf047SPaolo Bonzini QemuOpts *opts; 892baacf047SPaolo Bonzini int sock = -1; 893baacf047SPaolo Bonzini 894baacf047SPaolo Bonzini g_assert(callback != NULL); 895baacf047SPaolo Bonzini 89687ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 897f43e47dbSMarkus Armbruster qemu_opt_set(opts, "path", path, &error_abort); 898baacf047SPaolo Bonzini sock = unix_connect_opts(opts, errp, callback, opaque); 899baacf047SPaolo Bonzini qemu_opts_del(opts); 900baacf047SPaolo Bonzini return sock; 901baacf047SPaolo Bonzini } 902baacf047SPaolo Bonzini 903baacf047SPaolo Bonzini SocketAddress *socket_parse(const char *str, Error **errp) 904baacf047SPaolo Bonzini { 905afde3f8bSGerd Hoffmann SocketAddress *addr; 906baacf047SPaolo Bonzini 907afde3f8bSGerd Hoffmann addr = g_new0(SocketAddress, 1); 908baacf047SPaolo Bonzini if (strstart(str, "unix:", NULL)) { 909baacf047SPaolo Bonzini if (str[5] == '\0') { 910312fd5f2SMarkus Armbruster error_setg(errp, "invalid Unix socket address"); 911baacf047SPaolo Bonzini goto fail; 912baacf047SPaolo Bonzini } else { 913baacf047SPaolo Bonzini addr->kind = SOCKET_ADDRESS_KIND_UNIX; 914baacf047SPaolo Bonzini addr->q_unix = g_new(UnixSocketAddress, 1); 915baacf047SPaolo Bonzini addr->q_unix->path = g_strdup(str + 5); 916baacf047SPaolo Bonzini } 917baacf047SPaolo Bonzini } else if (strstart(str, "fd:", NULL)) { 918baacf047SPaolo Bonzini if (str[3] == '\0') { 919312fd5f2SMarkus Armbruster error_setg(errp, "invalid file descriptor address"); 920baacf047SPaolo Bonzini goto fail; 921baacf047SPaolo Bonzini } else { 922baacf047SPaolo Bonzini addr->kind = SOCKET_ADDRESS_KIND_FD; 923baacf047SPaolo Bonzini addr->fd = g_new(String, 1); 924baacf047SPaolo Bonzini addr->fd->str = g_strdup(str + 3); 925baacf047SPaolo Bonzini } 926baacf047SPaolo Bonzini } else { 927baacf047SPaolo Bonzini addr->kind = SOCKET_ADDRESS_KIND_INET; 928baacf047SPaolo Bonzini addr->inet = inet_parse(str, errp); 929baacf047SPaolo Bonzini if (addr->inet == NULL) { 930baacf047SPaolo Bonzini goto fail; 931baacf047SPaolo Bonzini } 932baacf047SPaolo Bonzini } 933baacf047SPaolo Bonzini return addr; 934baacf047SPaolo Bonzini 935baacf047SPaolo Bonzini fail: 936baacf047SPaolo Bonzini qapi_free_SocketAddress(addr); 937baacf047SPaolo Bonzini return NULL; 938baacf047SPaolo Bonzini } 939baacf047SPaolo Bonzini 940baacf047SPaolo Bonzini int socket_connect(SocketAddress *addr, Error **errp, 941baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, void *opaque) 942baacf047SPaolo Bonzini { 943baacf047SPaolo Bonzini QemuOpts *opts; 944baacf047SPaolo Bonzini int fd; 945baacf047SPaolo Bonzini 94687ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 947baacf047SPaolo Bonzini switch (addr->kind) { 948baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_INET: 949baacf047SPaolo Bonzini inet_addr_to_opts(opts, addr->inet); 950baacf047SPaolo Bonzini fd = inet_connect_opts(opts, errp, callback, opaque); 951baacf047SPaolo Bonzini break; 952baacf047SPaolo Bonzini 953baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_UNIX: 954f43e47dbSMarkus Armbruster qemu_opt_set(opts, "path", addr->q_unix->path, &error_abort); 955baacf047SPaolo Bonzini fd = unix_connect_opts(opts, errp, callback, opaque); 956baacf047SPaolo Bonzini break; 957baacf047SPaolo Bonzini 958baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_FD: 959baacf047SPaolo Bonzini fd = monitor_get_fd(cur_mon, addr->fd->str, errp); 960d1ec72a4SGerd Hoffmann if (fd >= 0 && callback) { 9611a751ebfSStefan Hajnoczi qemu_set_nonblock(fd); 96251795029SCorey Minyard callback(fd, NULL, opaque); 963baacf047SPaolo Bonzini } 964baacf047SPaolo Bonzini break; 965baacf047SPaolo Bonzini 966baacf047SPaolo Bonzini default: 967baacf047SPaolo Bonzini abort(); 968baacf047SPaolo Bonzini } 969baacf047SPaolo Bonzini qemu_opts_del(opts); 970baacf047SPaolo Bonzini return fd; 971baacf047SPaolo Bonzini } 972baacf047SPaolo Bonzini 973baacf047SPaolo Bonzini int socket_listen(SocketAddress *addr, Error **errp) 974baacf047SPaolo Bonzini { 975baacf047SPaolo Bonzini QemuOpts *opts; 976baacf047SPaolo Bonzini int fd; 977baacf047SPaolo Bonzini 97887ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 979baacf047SPaolo Bonzini switch (addr->kind) { 980baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_INET: 981baacf047SPaolo Bonzini inet_addr_to_opts(opts, addr->inet); 982baacf047SPaolo Bonzini fd = inet_listen_opts(opts, 0, errp); 983baacf047SPaolo Bonzini break; 984baacf047SPaolo Bonzini 985baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_UNIX: 986f43e47dbSMarkus Armbruster qemu_opt_set(opts, "path", addr->q_unix->path, &error_abort); 987baacf047SPaolo Bonzini fd = unix_listen_opts(opts, errp); 988baacf047SPaolo Bonzini break; 989baacf047SPaolo Bonzini 990baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_FD: 991baacf047SPaolo Bonzini fd = monitor_get_fd(cur_mon, addr->fd->str, errp); 992baacf047SPaolo Bonzini break; 993baacf047SPaolo Bonzini 994baacf047SPaolo Bonzini default: 995baacf047SPaolo Bonzini abort(); 996baacf047SPaolo Bonzini } 997baacf047SPaolo Bonzini qemu_opts_del(opts); 998baacf047SPaolo Bonzini return fd; 999baacf047SPaolo Bonzini } 1000baacf047SPaolo Bonzini 10013ecc059dSGerd Hoffmann int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp) 10023ecc059dSGerd Hoffmann { 10033ecc059dSGerd Hoffmann QemuOpts *opts; 10043ecc059dSGerd Hoffmann int fd; 10053ecc059dSGerd Hoffmann 100687ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 10073ecc059dSGerd Hoffmann switch (remote->kind) { 10083ecc059dSGerd Hoffmann case SOCKET_ADDRESS_KIND_INET: 10098287fea3SPeter Maydell inet_addr_to_opts(opts, remote->inet); 10103ecc059dSGerd Hoffmann if (local) { 1011f43e47dbSMarkus Armbruster qemu_opt_set(opts, "localaddr", local->inet->host, &error_abort); 1012f43e47dbSMarkus Armbruster qemu_opt_set(opts, "localport", local->inet->port, &error_abort); 10133ecc059dSGerd Hoffmann } 10143ecc059dSGerd Hoffmann fd = inet_dgram_opts(opts, errp); 10153ecc059dSGerd Hoffmann break; 10163ecc059dSGerd Hoffmann 10173ecc059dSGerd Hoffmann default: 10183ecc059dSGerd Hoffmann error_setg(errp, "socket type unsupported for datagram"); 10197a5b6af1SGerd Hoffmann fd = -1; 10203ecc059dSGerd Hoffmann } 10213ecc059dSGerd Hoffmann qemu_opts_del(opts); 10223ecc059dSGerd Hoffmann return fd; 10233ecc059dSGerd Hoffmann } 102417c55decSDaniel P. Berrange 102517c55decSDaniel P. Berrange 102617c55decSDaniel P. Berrange static SocketAddress * 102717c55decSDaniel P. Berrange socket_sockaddr_to_address_inet(struct sockaddr_storage *sa, 102817c55decSDaniel P. Berrange socklen_t salen, 102917c55decSDaniel P. Berrange Error **errp) 103017c55decSDaniel P. Berrange { 103117c55decSDaniel P. Berrange char host[NI_MAXHOST]; 103217c55decSDaniel P. Berrange char serv[NI_MAXSERV]; 103317c55decSDaniel P. Berrange SocketAddress *addr; 103417c55decSDaniel P. Berrange int ret; 103517c55decSDaniel P. Berrange 103617c55decSDaniel P. Berrange ret = getnameinfo((struct sockaddr *)sa, salen, 103717c55decSDaniel P. Berrange host, sizeof(host), 103817c55decSDaniel P. Berrange serv, sizeof(serv), 103917c55decSDaniel P. Berrange NI_NUMERICHOST | NI_NUMERICSERV); 104017c55decSDaniel P. Berrange if (ret != 0) { 104117c55decSDaniel P. Berrange error_setg(errp, "Cannot format numeric socket address: %s", 104217c55decSDaniel P. Berrange gai_strerror(ret)); 104317c55decSDaniel P. Berrange return NULL; 104417c55decSDaniel P. Berrange } 104517c55decSDaniel P. Berrange 104617c55decSDaniel P. Berrange addr = g_new0(SocketAddress, 1); 104717c55decSDaniel P. Berrange addr->kind = SOCKET_ADDRESS_KIND_INET; 104817c55decSDaniel P. Berrange addr->inet = g_new0(InetSocketAddress, 1); 104917c55decSDaniel P. Berrange addr->inet->host = g_strdup(host); 105017c55decSDaniel P. Berrange addr->inet->port = g_strdup(serv); 105117c55decSDaniel P. Berrange if (sa->ss_family == AF_INET) { 105217c55decSDaniel P. Berrange addr->inet->has_ipv4 = addr->inet->ipv4 = true; 105317c55decSDaniel P. Berrange } else { 105417c55decSDaniel P. Berrange addr->inet->has_ipv6 = addr->inet->ipv6 = true; 105517c55decSDaniel P. Berrange } 105617c55decSDaniel P. Berrange 105717c55decSDaniel P. Berrange return addr; 105817c55decSDaniel P. Berrange } 105917c55decSDaniel P. Berrange 106017c55decSDaniel P. Berrange 106117c55decSDaniel P. Berrange #ifndef WIN32 106217c55decSDaniel P. Berrange static SocketAddress * 106317c55decSDaniel P. Berrange socket_sockaddr_to_address_unix(struct sockaddr_storage *sa, 106417c55decSDaniel P. Berrange socklen_t salen, 106517c55decSDaniel P. Berrange Error **errp) 106617c55decSDaniel P. Berrange { 106717c55decSDaniel P. Berrange SocketAddress *addr; 106817c55decSDaniel P. Berrange struct sockaddr_un *su = (struct sockaddr_un *)sa; 106917c55decSDaniel P. Berrange 107017c55decSDaniel P. Berrange addr = g_new0(SocketAddress, 1); 107117c55decSDaniel P. Berrange addr->kind = SOCKET_ADDRESS_KIND_UNIX; 107217c55decSDaniel P. Berrange addr->q_unix = g_new0(UnixSocketAddress, 1); 107317c55decSDaniel P. Berrange if (su->sun_path[0]) { 107417c55decSDaniel P. Berrange addr->q_unix->path = g_strndup(su->sun_path, 107517c55decSDaniel P. Berrange sizeof(su->sun_path)); 107617c55decSDaniel P. Berrange } 107717c55decSDaniel P. Berrange 107817c55decSDaniel P. Berrange return addr; 107917c55decSDaniel P. Berrange } 108017c55decSDaniel P. Berrange #endif /* WIN32 */ 108117c55decSDaniel P. Berrange 108217c55decSDaniel P. Berrange static SocketAddress * 108317c55decSDaniel P. Berrange socket_sockaddr_to_address(struct sockaddr_storage *sa, 108417c55decSDaniel P. Berrange socklen_t salen, 108517c55decSDaniel P. Berrange Error **errp) 108617c55decSDaniel P. Berrange { 108717c55decSDaniel P. Berrange switch (sa->ss_family) { 108817c55decSDaniel P. Berrange case AF_INET: 108917c55decSDaniel P. Berrange case AF_INET6: 109017c55decSDaniel P. Berrange return socket_sockaddr_to_address_inet(sa, salen, errp); 109117c55decSDaniel P. Berrange 109217c55decSDaniel P. Berrange #ifndef WIN32 109317c55decSDaniel P. Berrange case AF_UNIX: 109417c55decSDaniel P. Berrange return socket_sockaddr_to_address_unix(sa, salen, errp); 109517c55decSDaniel P. Berrange #endif /* WIN32 */ 109617c55decSDaniel P. Berrange 109717c55decSDaniel P. Berrange default: 109817c55decSDaniel P. Berrange error_setg(errp, "socket family %d unsupported", 109917c55decSDaniel P. Berrange sa->ss_family); 110017c55decSDaniel P. Berrange return NULL; 110117c55decSDaniel P. Berrange } 110217c55decSDaniel P. Berrange return 0; 110317c55decSDaniel P. Berrange } 110417c55decSDaniel P. Berrange 110517c55decSDaniel P. Berrange 110617c55decSDaniel P. Berrange SocketAddress *socket_local_address(int fd, Error **errp) 110717c55decSDaniel P. Berrange { 110817c55decSDaniel P. Berrange struct sockaddr_storage ss; 110917c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 111017c55decSDaniel P. Berrange 111117c55decSDaniel P. Berrange if (getsockname(fd, (struct sockaddr *)&ss, &sslen) < 0) { 111217c55decSDaniel P. Berrange error_setg_errno(errp, socket_error(), "%s", 111317c55decSDaniel P. Berrange "Unable to query local socket address"); 111417c55decSDaniel P. Berrange return NULL; 111517c55decSDaniel P. Berrange } 111617c55decSDaniel P. Berrange 111717c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 111817c55decSDaniel P. Berrange } 111917c55decSDaniel P. Berrange 112017c55decSDaniel P. Berrange 112117c55decSDaniel P. Berrange SocketAddress *socket_remote_address(int fd, Error **errp) 112217c55decSDaniel P. Berrange { 112317c55decSDaniel P. Berrange struct sockaddr_storage ss; 112417c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 112517c55decSDaniel P. Berrange 112617c55decSDaniel P. Berrange if (getpeername(fd, (struct sockaddr *)&ss, &sslen) < 0) { 112717c55decSDaniel P. Berrange error_setg_errno(errp, socket_error(), "%s", 112817c55decSDaniel P. Berrange "Unable to query remote socket address"); 112917c55decSDaniel P. Berrange return NULL; 113017c55decSDaniel P. Berrange } 113117c55decSDaniel P. Berrange 113217c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 113317c55decSDaniel P. Berrange } 1134*2a8e21c7SDaniel P. Berrange 1135*2a8e21c7SDaniel P. Berrange 1136*2a8e21c7SDaniel P. Berrange void qapi_copy_SocketAddress(SocketAddress **p_dest, 1137*2a8e21c7SDaniel P. Berrange SocketAddress *src) 1138*2a8e21c7SDaniel P. Berrange { 1139*2a8e21c7SDaniel P. Berrange QmpOutputVisitor *qov; 1140*2a8e21c7SDaniel P. Berrange QmpInputVisitor *qiv; 1141*2a8e21c7SDaniel P. Berrange Visitor *ov, *iv; 1142*2a8e21c7SDaniel P. Berrange QObject *obj; 1143*2a8e21c7SDaniel P. Berrange 1144*2a8e21c7SDaniel P. Berrange *p_dest = NULL; 1145*2a8e21c7SDaniel P. Berrange 1146*2a8e21c7SDaniel P. Berrange qov = qmp_output_visitor_new(); 1147*2a8e21c7SDaniel P. Berrange ov = qmp_output_get_visitor(qov); 1148*2a8e21c7SDaniel P. Berrange visit_type_SocketAddress(ov, &src, NULL, &error_abort); 1149*2a8e21c7SDaniel P. Berrange obj = qmp_output_get_qobject(qov); 1150*2a8e21c7SDaniel P. Berrange qmp_output_visitor_cleanup(qov); 1151*2a8e21c7SDaniel P. Berrange if (!obj) { 1152*2a8e21c7SDaniel P. Berrange return; 1153*2a8e21c7SDaniel P. Berrange } 1154*2a8e21c7SDaniel P. Berrange 1155*2a8e21c7SDaniel P. Berrange qiv = qmp_input_visitor_new(obj); 1156*2a8e21c7SDaniel P. Berrange iv = qmp_input_get_visitor(qiv); 1157*2a8e21c7SDaniel P. Berrange visit_type_SocketAddress(iv, p_dest, NULL, &error_abort); 1158*2a8e21c7SDaniel P. Berrange qmp_input_visitor_cleanup(qiv); 1159*2a8e21c7SDaniel P. Berrange qobject_decref(obj); 1160*2a8e21c7SDaniel P. Berrange } 1161