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" 282a8e21c7SDaniel P. Berrange #include "qapi/qmp-input-visitor.h" 292a8e21c7SDaniel P. Berrange #include "qapi/qmp-output-visitor.h" 302a8e21c7SDaniel 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 1310983f5e6SDaniel P. Berrange if ((qemu_opt_get(opts, "host") == NULL)) { 1320983f5e6SDaniel P. Berrange error_setg(errp, "host not specified"); 133baacf047SPaolo Bonzini return -1; 134baacf047SPaolo Bonzini } 1350983f5e6SDaniel P. Berrange if (qemu_opt_get(opts, "port") != NULL) { 136baacf047SPaolo Bonzini pstrcpy(port, sizeof(port), qemu_opt_get(opts, "port")); 1370983f5e6SDaniel P. Berrange } else { 1380983f5e6SDaniel P. Berrange port[0] = '\0'; 1390983f5e6SDaniel P. Berrange } 140baacf047SPaolo Bonzini addr = qemu_opt_get(opts, "host"); 141baacf047SPaolo Bonzini 142baacf047SPaolo Bonzini to = qemu_opt_get_number(opts, "to", 0); 143baacf047SPaolo Bonzini if (qemu_opt_get_bool(opts, "ipv4", 0)) 144baacf047SPaolo Bonzini ai.ai_family = PF_INET; 145baacf047SPaolo Bonzini if (qemu_opt_get_bool(opts, "ipv6", 0)) 146baacf047SPaolo Bonzini ai.ai_family = PF_INET6; 147baacf047SPaolo Bonzini 148baacf047SPaolo Bonzini /* lookup */ 1498bc89127SGerd Hoffmann if (port_offset) { 1508bc89127SGerd Hoffmann unsigned long long baseport; 1510983f5e6SDaniel P. Berrange if (strlen(port) == 0) { 1520983f5e6SDaniel P. Berrange error_setg(errp, "port not specified"); 1530983f5e6SDaniel P. Berrange return -1; 1540983f5e6SDaniel P. Berrange } 1558bc89127SGerd Hoffmann if (parse_uint_full(port, &baseport, 10) < 0) { 1568bc89127SGerd Hoffmann error_setg(errp, "can't convert to a number: %s", port); 1578bc89127SGerd Hoffmann return -1; 1588bc89127SGerd Hoffmann } 1598bc89127SGerd Hoffmann if (baseport > 65535 || 1608bc89127SGerd Hoffmann baseport + port_offset > 65535) { 1618bc89127SGerd Hoffmann error_setg(errp, "port %s out of range", port); 1628bc89127SGerd Hoffmann return -1; 1638bc89127SGerd Hoffmann } 1648bc89127SGerd Hoffmann snprintf(port, sizeof(port), "%d", (int)baseport + port_offset); 1658bc89127SGerd Hoffmann } 1660983f5e6SDaniel P. Berrange rc = getaddrinfo(strlen(addr) ? addr : NULL, 1670983f5e6SDaniel P. Berrange strlen(port) ? port : NULL, &ai, &res); 168baacf047SPaolo Bonzini if (rc != 0) { 169baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 170baacf047SPaolo Bonzini gai_strerror(rc)); 171baacf047SPaolo Bonzini return -1; 172baacf047SPaolo Bonzini } 173baacf047SPaolo Bonzini 174baacf047SPaolo Bonzini /* create socket + bind */ 175baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 176baacf047SPaolo Bonzini getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen, 177baacf047SPaolo Bonzini uaddr,INET6_ADDRSTRLEN,uport,32, 178baacf047SPaolo Bonzini NI_NUMERICHOST | NI_NUMERICSERV); 179baacf047SPaolo Bonzini slisten = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol); 180baacf047SPaolo Bonzini if (slisten < 0) { 181baacf047SPaolo Bonzini if (!e->ai_next) { 182235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 183baacf047SPaolo Bonzini } 184baacf047SPaolo Bonzini continue; 185baacf047SPaolo Bonzini } 186baacf047SPaolo Bonzini 18704fd1c78SSebastian Ottlik socket_set_fast_reuse(slisten); 188baacf047SPaolo Bonzini #ifdef IPV6_V6ONLY 189baacf047SPaolo Bonzini if (e->ai_family == PF_INET6) { 190baacf047SPaolo Bonzini /* listen on both ipv4 and ipv6 */ 191f9b5426fSPeter Maydell const int off = 0; 1929957fc7fSStefan Weil qemu_setsockopt(slisten, IPPROTO_IPV6, IPV6_V6ONLY, &off, 193baacf047SPaolo Bonzini sizeof(off)); 194baacf047SPaolo Bonzini } 195baacf047SPaolo Bonzini #endif 196baacf047SPaolo Bonzini 197baacf047SPaolo Bonzini port_min = inet_getport(e); 198baacf047SPaolo Bonzini port_max = to ? to + port_offset : port_min; 199baacf047SPaolo Bonzini for (p = port_min; p <= port_max; p++) { 200baacf047SPaolo Bonzini inet_setport(e, p); 201baacf047SPaolo Bonzini if (bind(slisten, e->ai_addr, e->ai_addrlen) == 0) { 202baacf047SPaolo Bonzini goto listen; 203baacf047SPaolo Bonzini } 204baacf047SPaolo Bonzini if (p == port_max) { 205baacf047SPaolo Bonzini if (!e->ai_next) { 206235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 207baacf047SPaolo Bonzini } 208baacf047SPaolo Bonzini } 209baacf047SPaolo Bonzini } 210baacf047SPaolo Bonzini closesocket(slisten); 211baacf047SPaolo Bonzini } 212baacf047SPaolo Bonzini freeaddrinfo(res); 213baacf047SPaolo Bonzini return -1; 214baacf047SPaolo Bonzini 215baacf047SPaolo Bonzini listen: 216baacf047SPaolo Bonzini if (listen(slisten,1) != 0) { 217235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 218baacf047SPaolo Bonzini closesocket(slisten); 219baacf047SPaolo Bonzini freeaddrinfo(res); 220baacf047SPaolo Bonzini return -1; 221baacf047SPaolo Bonzini } 222f43e47dbSMarkus Armbruster qemu_opt_set(opts, "host", uaddr, &error_abort); 22362b3de69SMarkus Armbruster qemu_opt_set_number(opts, "port", inet_getport(e) - port_offset, 224f43e47dbSMarkus Armbruster &error_abort); 22562b3de69SMarkus Armbruster qemu_opt_set_bool(opts, "ipv6", e->ai_family == PF_INET6, 22662b3de69SMarkus Armbruster &error_abort); 22762b3de69SMarkus Armbruster qemu_opt_set_bool(opts, "ipv4", e->ai_family != PF_INET6, 228f43e47dbSMarkus Armbruster &error_abort); 229baacf047SPaolo Bonzini freeaddrinfo(res); 230baacf047SPaolo Bonzini return slisten; 231baacf047SPaolo Bonzini } 232baacf047SPaolo Bonzini 233baacf047SPaolo Bonzini #ifdef _WIN32 234baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 235baacf047SPaolo Bonzini ((rc) == -EINPROGRESS || (rc) == -EWOULDBLOCK || (rc) == -WSAEALREADY) 236baacf047SPaolo Bonzini #else 237baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 238baacf047SPaolo Bonzini ((rc) == -EINPROGRESS) 239baacf047SPaolo Bonzini #endif 240baacf047SPaolo Bonzini 241baacf047SPaolo Bonzini /* Struct to store connect state for non blocking connect */ 242baacf047SPaolo Bonzini typedef struct ConnectState { 243baacf047SPaolo Bonzini int fd; 244baacf047SPaolo Bonzini struct addrinfo *addr_list; 245baacf047SPaolo Bonzini struct addrinfo *current_addr; 246baacf047SPaolo Bonzini NonBlockingConnectHandler *callback; 247baacf047SPaolo Bonzini void *opaque; 248baacf047SPaolo Bonzini } ConnectState; 249baacf047SPaolo Bonzini 250baacf047SPaolo Bonzini static int inet_connect_addr(struct addrinfo *addr, bool *in_progress, 251baacf047SPaolo Bonzini ConnectState *connect_state, Error **errp); 252baacf047SPaolo Bonzini 253baacf047SPaolo Bonzini static void wait_for_connect(void *opaque) 254baacf047SPaolo Bonzini { 255baacf047SPaolo Bonzini ConnectState *s = opaque; 256baacf047SPaolo Bonzini int val = 0, rc = 0; 257baacf047SPaolo Bonzini socklen_t valsize = sizeof(val); 258baacf047SPaolo Bonzini bool in_progress; 25951795029SCorey Minyard Error *err = NULL; 260baacf047SPaolo Bonzini 26182e1cc4bSFam Zheng qemu_set_fd_handler(s->fd, NULL, NULL, NULL); 262baacf047SPaolo Bonzini 263baacf047SPaolo Bonzini do { 2649957fc7fSStefan Weil rc = qemu_getsockopt(s->fd, SOL_SOCKET, SO_ERROR, &val, &valsize); 265baacf047SPaolo Bonzini } while (rc == -1 && socket_error() == EINTR); 266baacf047SPaolo Bonzini 267baacf047SPaolo Bonzini /* update rc to contain error */ 268baacf047SPaolo Bonzini if (!rc && val) { 269baacf047SPaolo Bonzini rc = -1; 27051795029SCorey Minyard errno = val; 271baacf047SPaolo Bonzini } 272baacf047SPaolo Bonzini 273baacf047SPaolo Bonzini /* connect error */ 274baacf047SPaolo Bonzini if (rc < 0) { 27551795029SCorey Minyard error_setg_errno(&err, errno, "Error connecting to socket"); 276baacf047SPaolo Bonzini closesocket(s->fd); 277baacf047SPaolo Bonzini s->fd = rc; 278baacf047SPaolo Bonzini } 279baacf047SPaolo Bonzini 280baacf047SPaolo Bonzini /* try to connect to the next address on the list */ 281baacf047SPaolo Bonzini if (s->current_addr) { 282baacf047SPaolo Bonzini while (s->current_addr->ai_next != NULL && s->fd < 0) { 283baacf047SPaolo Bonzini s->current_addr = s->current_addr->ai_next; 284baacf047SPaolo Bonzini s->fd = inet_connect_addr(s->current_addr, &in_progress, s, NULL); 28551795029SCorey Minyard if (s->fd < 0) { 28651795029SCorey Minyard error_free(err); 28751795029SCorey Minyard err = NULL; 28851795029SCorey Minyard error_setg_errno(&err, errno, "Unable to start socket connect"); 28951795029SCorey Minyard } 290baacf047SPaolo Bonzini /* connect in progress */ 291baacf047SPaolo Bonzini if (in_progress) { 29251795029SCorey Minyard goto out; 293baacf047SPaolo Bonzini } 294baacf047SPaolo Bonzini } 295baacf047SPaolo Bonzini 296baacf047SPaolo Bonzini freeaddrinfo(s->addr_list); 297baacf047SPaolo Bonzini } 298baacf047SPaolo Bonzini 299baacf047SPaolo Bonzini if (s->callback) { 30051795029SCorey Minyard s->callback(s->fd, err, s->opaque); 301baacf047SPaolo Bonzini } 302baacf047SPaolo Bonzini g_free(s); 30351795029SCorey Minyard out: 30451795029SCorey Minyard error_free(err); 305baacf047SPaolo Bonzini } 306baacf047SPaolo Bonzini 307baacf047SPaolo Bonzini static int inet_connect_addr(struct addrinfo *addr, bool *in_progress, 308baacf047SPaolo Bonzini ConnectState *connect_state, Error **errp) 309baacf047SPaolo Bonzini { 310baacf047SPaolo Bonzini int sock, rc; 311baacf047SPaolo Bonzini 312baacf047SPaolo Bonzini *in_progress = false; 313baacf047SPaolo Bonzini 314baacf047SPaolo Bonzini sock = qemu_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol); 315baacf047SPaolo Bonzini if (sock < 0) { 316235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 317baacf047SPaolo Bonzini return -1; 318baacf047SPaolo Bonzini } 31904fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 320baacf047SPaolo Bonzini if (connect_state != NULL) { 321f9e8caccSStefan Hajnoczi qemu_set_nonblock(sock); 322baacf047SPaolo Bonzini } 323baacf047SPaolo Bonzini /* connect to peer */ 324baacf047SPaolo Bonzini do { 325baacf047SPaolo Bonzini rc = 0; 326baacf047SPaolo Bonzini if (connect(sock, addr->ai_addr, addr->ai_addrlen) < 0) { 327baacf047SPaolo Bonzini rc = -socket_error(); 328baacf047SPaolo Bonzini } 329baacf047SPaolo Bonzini } while (rc == -EINTR); 330baacf047SPaolo Bonzini 331baacf047SPaolo Bonzini if (connect_state != NULL && QEMU_SOCKET_RC_INPROGRESS(rc)) { 332baacf047SPaolo Bonzini connect_state->fd = sock; 33382e1cc4bSFam Zheng qemu_set_fd_handler(sock, NULL, wait_for_connect, connect_state); 334baacf047SPaolo Bonzini *in_progress = true; 335baacf047SPaolo Bonzini } else if (rc < 0) { 336235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 337baacf047SPaolo Bonzini closesocket(sock); 338baacf047SPaolo Bonzini return -1; 339baacf047SPaolo Bonzini } 340baacf047SPaolo Bonzini return sock; 341baacf047SPaolo Bonzini } 342baacf047SPaolo Bonzini 343baacf047SPaolo Bonzini static struct addrinfo *inet_parse_connect_opts(QemuOpts *opts, Error **errp) 344baacf047SPaolo Bonzini { 345baacf047SPaolo Bonzini struct addrinfo ai, *res; 346baacf047SPaolo Bonzini int rc; 347baacf047SPaolo Bonzini const char *addr; 348baacf047SPaolo Bonzini const char *port; 349baacf047SPaolo Bonzini 350baacf047SPaolo Bonzini memset(&ai, 0, sizeof(ai)); 351baacf047SPaolo Bonzini 3523de3d698SWolfgang Bumiller ai.ai_flags = AI_CANONNAME | AI_V4MAPPED | AI_ADDRCONFIG; 353baacf047SPaolo Bonzini ai.ai_family = PF_UNSPEC; 354baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 355baacf047SPaolo Bonzini 356baacf047SPaolo Bonzini addr = qemu_opt_get(opts, "host"); 357baacf047SPaolo Bonzini port = qemu_opt_get(opts, "port"); 358baacf047SPaolo Bonzini if (addr == NULL || port == NULL) { 359baacf047SPaolo Bonzini error_setg(errp, "host and/or port not specified"); 360baacf047SPaolo Bonzini return NULL; 361baacf047SPaolo Bonzini } 362baacf047SPaolo Bonzini 363baacf047SPaolo Bonzini if (qemu_opt_get_bool(opts, "ipv4", 0)) { 364baacf047SPaolo Bonzini ai.ai_family = PF_INET; 365baacf047SPaolo Bonzini } 366baacf047SPaolo Bonzini if (qemu_opt_get_bool(opts, "ipv6", 0)) { 367baacf047SPaolo Bonzini ai.ai_family = PF_INET6; 368baacf047SPaolo Bonzini } 369baacf047SPaolo Bonzini 370baacf047SPaolo Bonzini /* lookup */ 371baacf047SPaolo Bonzini rc = getaddrinfo(addr, port, &ai, &res); 372baacf047SPaolo Bonzini if (rc != 0) { 373baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 374baacf047SPaolo Bonzini gai_strerror(rc)); 375baacf047SPaolo Bonzini return NULL; 376baacf047SPaolo Bonzini } 377baacf047SPaolo Bonzini return res; 378baacf047SPaolo Bonzini } 379baacf047SPaolo Bonzini 380baacf047SPaolo Bonzini /** 381baacf047SPaolo Bonzini * Create a socket and connect it to an address. 382baacf047SPaolo Bonzini * 383baacf047SPaolo Bonzini * @opts: QEMU options, recognized parameters strings "host" and "port", 384baacf047SPaolo Bonzini * bools "ipv4" and "ipv6". 385baacf047SPaolo Bonzini * @errp: set on error 386baacf047SPaolo Bonzini * @callback: callback function for non-blocking connect 387baacf047SPaolo Bonzini * @opaque: opaque for callback function 388baacf047SPaolo Bonzini * 389baacf047SPaolo Bonzini * Returns: -1 on error, file descriptor on success. 390baacf047SPaolo Bonzini * 391baacf047SPaolo Bonzini * If @callback is non-null, the connect is non-blocking. If this 392baacf047SPaolo Bonzini * function succeeds, callback will be called when the connection 393baacf047SPaolo Bonzini * completes, with the file descriptor on success, or -1 on error. 394baacf047SPaolo Bonzini */ 395baacf047SPaolo Bonzini int inet_connect_opts(QemuOpts *opts, Error **errp, 396baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, void *opaque) 397baacf047SPaolo Bonzini { 3983f9286b7SMarkus Armbruster Error *local_err = NULL; 399baacf047SPaolo Bonzini struct addrinfo *res, *e; 400baacf047SPaolo Bonzini int sock = -1; 401baacf047SPaolo Bonzini bool in_progress; 402baacf047SPaolo Bonzini ConnectState *connect_state = NULL; 403baacf047SPaolo Bonzini 404baacf047SPaolo Bonzini res = inet_parse_connect_opts(opts, errp); 405baacf047SPaolo Bonzini if (!res) { 406baacf047SPaolo Bonzini return -1; 407baacf047SPaolo Bonzini } 408baacf047SPaolo Bonzini 409baacf047SPaolo Bonzini if (callback != NULL) { 410baacf047SPaolo Bonzini connect_state = g_malloc0(sizeof(*connect_state)); 411baacf047SPaolo Bonzini connect_state->addr_list = res; 412baacf047SPaolo Bonzini connect_state->callback = callback; 413baacf047SPaolo Bonzini connect_state->opaque = opaque; 414baacf047SPaolo Bonzini } 415baacf047SPaolo Bonzini 416baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 4173f9286b7SMarkus Armbruster error_free(local_err); 4183f9286b7SMarkus Armbruster local_err = NULL; 419baacf047SPaolo Bonzini if (connect_state != NULL) { 420baacf047SPaolo Bonzini connect_state->current_addr = e; 421baacf047SPaolo Bonzini } 4223f9286b7SMarkus Armbruster sock = inet_connect_addr(e, &in_progress, connect_state, &local_err); 4233f9286b7SMarkus Armbruster if (sock >= 0) { 424baacf047SPaolo Bonzini break; 425baacf047SPaolo Bonzini } 426baacf047SPaolo Bonzini } 4273f9286b7SMarkus Armbruster 4283f9286b7SMarkus Armbruster if (sock < 0) { 4293f9286b7SMarkus Armbruster error_propagate(errp, local_err); 4303f9286b7SMarkus Armbruster } else if (in_progress) { 4313f9286b7SMarkus Armbruster /* wait_for_connect() will do the rest */ 4323f9286b7SMarkus Armbruster return sock; 4333f9286b7SMarkus Armbruster } else { 4343f9286b7SMarkus Armbruster if (callback) { 43551795029SCorey Minyard callback(sock, NULL, opaque); 4363f9286b7SMarkus Armbruster } 4373f9286b7SMarkus Armbruster } 438baacf047SPaolo Bonzini g_free(connect_state); 439baacf047SPaolo Bonzini freeaddrinfo(res); 440baacf047SPaolo Bonzini return sock; 441baacf047SPaolo Bonzini } 442baacf047SPaolo Bonzini 443baacf047SPaolo Bonzini int inet_dgram_opts(QemuOpts *opts, Error **errp) 444baacf047SPaolo Bonzini { 445baacf047SPaolo Bonzini struct addrinfo ai, *peer = NULL, *local = NULL; 446baacf047SPaolo Bonzini const char *addr; 447baacf047SPaolo Bonzini const char *port; 448baacf047SPaolo Bonzini int sock = -1, rc; 449baacf047SPaolo Bonzini 450baacf047SPaolo Bonzini /* lookup peer addr */ 451baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 4523de3d698SWolfgang Bumiller ai.ai_flags = AI_CANONNAME | AI_V4MAPPED | AI_ADDRCONFIG; 453baacf047SPaolo Bonzini ai.ai_family = PF_UNSPEC; 454baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 455baacf047SPaolo Bonzini 456baacf047SPaolo Bonzini addr = qemu_opt_get(opts, "host"); 457baacf047SPaolo Bonzini port = qemu_opt_get(opts, "port"); 458baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 459baacf047SPaolo Bonzini addr = "localhost"; 460baacf047SPaolo Bonzini } 461baacf047SPaolo Bonzini if (port == NULL || strlen(port) == 0) { 462baacf047SPaolo Bonzini error_setg(errp, "remote port not specified"); 463baacf047SPaolo Bonzini return -1; 464baacf047SPaolo Bonzini } 465baacf047SPaolo Bonzini 466baacf047SPaolo Bonzini if (qemu_opt_get_bool(opts, "ipv4", 0)) 467baacf047SPaolo Bonzini ai.ai_family = PF_INET; 468baacf047SPaolo Bonzini if (qemu_opt_get_bool(opts, "ipv6", 0)) 469baacf047SPaolo Bonzini ai.ai_family = PF_INET6; 470baacf047SPaolo Bonzini 471baacf047SPaolo Bonzini if (0 != (rc = getaddrinfo(addr, port, &ai, &peer))) { 472baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 473baacf047SPaolo Bonzini gai_strerror(rc)); 474baacf047SPaolo Bonzini return -1; 475baacf047SPaolo Bonzini } 476baacf047SPaolo Bonzini 477baacf047SPaolo Bonzini /* lookup local addr */ 478baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 479baacf047SPaolo Bonzini ai.ai_flags = AI_PASSIVE; 480baacf047SPaolo Bonzini ai.ai_family = peer->ai_family; 481baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 482baacf047SPaolo Bonzini 483baacf047SPaolo Bonzini addr = qemu_opt_get(opts, "localaddr"); 484baacf047SPaolo Bonzini port = qemu_opt_get(opts, "localport"); 485baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 486baacf047SPaolo Bonzini addr = NULL; 487baacf047SPaolo Bonzini } 488baacf047SPaolo Bonzini if (!port || strlen(port) == 0) 489baacf047SPaolo Bonzini port = "0"; 490baacf047SPaolo Bonzini 491baacf047SPaolo Bonzini if (0 != (rc = getaddrinfo(addr, port, &ai, &local))) { 492baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 493baacf047SPaolo Bonzini gai_strerror(rc)); 494baacf047SPaolo Bonzini goto err; 495baacf047SPaolo Bonzini } 496baacf047SPaolo Bonzini 497baacf047SPaolo Bonzini /* create socket */ 498baacf047SPaolo Bonzini sock = qemu_socket(peer->ai_family, peer->ai_socktype, peer->ai_protocol); 499baacf047SPaolo Bonzini if (sock < 0) { 500235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 501baacf047SPaolo Bonzini goto err; 502baacf047SPaolo Bonzini } 50304fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 504baacf047SPaolo Bonzini 505baacf047SPaolo Bonzini /* bind socket */ 506baacf047SPaolo Bonzini if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) { 507235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 508baacf047SPaolo Bonzini goto err; 509baacf047SPaolo Bonzini } 510baacf047SPaolo Bonzini 511baacf047SPaolo Bonzini /* connect to peer */ 512baacf047SPaolo Bonzini if (connect(sock,peer->ai_addr,peer->ai_addrlen) < 0) { 513235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 514baacf047SPaolo Bonzini goto err; 515baacf047SPaolo Bonzini } 516baacf047SPaolo Bonzini 517baacf047SPaolo Bonzini freeaddrinfo(local); 518baacf047SPaolo Bonzini freeaddrinfo(peer); 519baacf047SPaolo Bonzini return sock; 520baacf047SPaolo Bonzini 521baacf047SPaolo Bonzini err: 522baacf047SPaolo Bonzini if (-1 != sock) 523baacf047SPaolo Bonzini closesocket(sock); 524baacf047SPaolo Bonzini if (local) 525baacf047SPaolo Bonzini freeaddrinfo(local); 526baacf047SPaolo Bonzini if (peer) 527baacf047SPaolo Bonzini freeaddrinfo(peer); 528baacf047SPaolo Bonzini return -1; 529baacf047SPaolo Bonzini } 530baacf047SPaolo Bonzini 531baacf047SPaolo Bonzini /* compatibility wrapper */ 532f17c90beSKevin Wolf InetSocketAddress *inet_parse(const char *str, Error **errp) 533baacf047SPaolo Bonzini { 534baacf047SPaolo Bonzini InetSocketAddress *addr; 535baacf047SPaolo Bonzini const char *optstr, *h; 53655a10996SKevin Wolf char host[65]; 537baacf047SPaolo Bonzini char port[33]; 538baacf047SPaolo Bonzini int to; 539baacf047SPaolo Bonzini int pos; 540baacf047SPaolo Bonzini 541baacf047SPaolo Bonzini addr = g_new0(InetSocketAddress, 1); 542baacf047SPaolo Bonzini 543baacf047SPaolo Bonzini /* parse address */ 544baacf047SPaolo Bonzini if (str[0] == ':') { 545baacf047SPaolo Bonzini /* no host given */ 546baacf047SPaolo Bonzini host[0] = '\0'; 547baacf047SPaolo Bonzini if (1 != sscanf(str, ":%32[^,]%n", port, &pos)) { 548baacf047SPaolo Bonzini error_setg(errp, "error parsing port in address '%s'", str); 549baacf047SPaolo Bonzini goto fail; 550baacf047SPaolo Bonzini } 551baacf047SPaolo Bonzini } else if (str[0] == '[') { 552baacf047SPaolo Bonzini /* IPv6 addr */ 553baacf047SPaolo Bonzini if (2 != sscanf(str, "[%64[^]]]:%32[^,]%n", host, port, &pos)) { 554baacf047SPaolo Bonzini error_setg(errp, "error parsing IPv6 address '%s'", str); 555baacf047SPaolo Bonzini goto fail; 556baacf047SPaolo Bonzini } 557baacf047SPaolo Bonzini addr->ipv6 = addr->has_ipv6 = true; 558baacf047SPaolo Bonzini } else { 559391b7b97SJán Tomko /* hostname or IPv4 addr */ 560baacf047SPaolo Bonzini if (2 != sscanf(str, "%64[^:]:%32[^,]%n", host, port, &pos)) { 561baacf047SPaolo Bonzini error_setg(errp, "error parsing address '%s'", str); 562baacf047SPaolo Bonzini goto fail; 563baacf047SPaolo Bonzini } 564391b7b97SJán Tomko if (host[strspn(host, "0123456789.")] == '\0') { 565391b7b97SJán Tomko addr->ipv4 = addr->has_ipv4 = true; 566391b7b97SJán Tomko } 567baacf047SPaolo Bonzini } 568baacf047SPaolo Bonzini 569baacf047SPaolo Bonzini addr->host = g_strdup(host); 570baacf047SPaolo Bonzini addr->port = g_strdup(port); 571baacf047SPaolo Bonzini 572baacf047SPaolo Bonzini /* parse options */ 573baacf047SPaolo Bonzini optstr = str + pos; 574baacf047SPaolo Bonzini h = strstr(optstr, ",to="); 575baacf047SPaolo Bonzini if (h) { 576baacf047SPaolo Bonzini h += 4; 577baacf047SPaolo Bonzini if (sscanf(h, "%d%n", &to, &pos) != 1 || 578baacf047SPaolo Bonzini (h[pos] != '\0' && h[pos] != ',')) { 579baacf047SPaolo Bonzini error_setg(errp, "error parsing to= argument"); 580baacf047SPaolo Bonzini goto fail; 581baacf047SPaolo Bonzini } 582baacf047SPaolo Bonzini addr->has_to = true; 583baacf047SPaolo Bonzini addr->to = to; 584baacf047SPaolo Bonzini } 585baacf047SPaolo Bonzini if (strstr(optstr, ",ipv4")) { 586baacf047SPaolo Bonzini addr->ipv4 = addr->has_ipv4 = true; 587baacf047SPaolo Bonzini } 588baacf047SPaolo Bonzini if (strstr(optstr, ",ipv6")) { 589baacf047SPaolo Bonzini addr->ipv6 = addr->has_ipv6 = true; 590baacf047SPaolo Bonzini } 591baacf047SPaolo Bonzini return addr; 592baacf047SPaolo Bonzini 593baacf047SPaolo Bonzini fail: 594baacf047SPaolo Bonzini qapi_free_InetSocketAddress(addr); 595baacf047SPaolo Bonzini return NULL; 596baacf047SPaolo Bonzini } 597baacf047SPaolo Bonzini 598f17c90beSKevin Wolf static void inet_addr_to_opts(QemuOpts *opts, const InetSocketAddress *addr) 599baacf047SPaolo Bonzini { 600b77e7c8eSPaolo Bonzini bool ipv4 = addr->has_ipv4 && addr->ipv4; 601b77e7c8eSPaolo Bonzini bool ipv6 = addr->has_ipv6 && addr->ipv6; 602baacf047SPaolo Bonzini 603b77e7c8eSPaolo Bonzini if (ipv4 || ipv6) { 604cccb7967SMarkus Armbruster qemu_opt_set_bool(opts, "ipv4", ipv4, &error_abort); 605cccb7967SMarkus Armbruster qemu_opt_set_bool(opts, "ipv6", ipv6, &error_abort); 606b77e7c8eSPaolo Bonzini } else if (addr->has_ipv4 || addr->has_ipv6) { 607b77e7c8eSPaolo Bonzini qemu_opt_set_bool(opts, "ipv4", !addr->has_ipv4, &error_abort); 608b77e7c8eSPaolo Bonzini qemu_opt_set_bool(opts, "ipv6", !addr->has_ipv6, &error_abort); 609baacf047SPaolo Bonzini } 610baacf047SPaolo Bonzini if (addr->has_to) { 61162b3de69SMarkus Armbruster qemu_opt_set_number(opts, "to", addr->to, &error_abort); 612baacf047SPaolo Bonzini } 613f43e47dbSMarkus Armbruster qemu_opt_set(opts, "host", addr->host, &error_abort); 614f43e47dbSMarkus Armbruster qemu_opt_set(opts, "port", addr->port, &error_abort); 615baacf047SPaolo Bonzini } 616baacf047SPaolo Bonzini 617baacf047SPaolo Bonzini int inet_listen(const char *str, char *ostr, int olen, 618baacf047SPaolo Bonzini int socktype, int port_offset, Error **errp) 619baacf047SPaolo Bonzini { 620baacf047SPaolo Bonzini QemuOpts *opts; 621baacf047SPaolo Bonzini char *optstr; 622baacf047SPaolo Bonzini int sock = -1; 623baacf047SPaolo Bonzini InetSocketAddress *addr; 624baacf047SPaolo Bonzini 625baacf047SPaolo Bonzini addr = inet_parse(str, errp); 626baacf047SPaolo Bonzini if (addr != NULL) { 62787ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 628baacf047SPaolo Bonzini inet_addr_to_opts(opts, addr); 629baacf047SPaolo Bonzini qapi_free_InetSocketAddress(addr); 630baacf047SPaolo Bonzini sock = inet_listen_opts(opts, port_offset, errp); 631baacf047SPaolo Bonzini if (sock != -1 && ostr) { 632baacf047SPaolo Bonzini optstr = strchr(str, ','); 633baacf047SPaolo Bonzini if (qemu_opt_get_bool(opts, "ipv6", 0)) { 634baacf047SPaolo Bonzini snprintf(ostr, olen, "[%s]:%s%s", 635baacf047SPaolo Bonzini qemu_opt_get(opts, "host"), 636baacf047SPaolo Bonzini qemu_opt_get(opts, "port"), 637baacf047SPaolo Bonzini optstr ? optstr : ""); 638baacf047SPaolo Bonzini } else { 639baacf047SPaolo Bonzini snprintf(ostr, olen, "%s:%s%s", 640baacf047SPaolo Bonzini qemu_opt_get(opts, "host"), 641baacf047SPaolo Bonzini qemu_opt_get(opts, "port"), 642baacf047SPaolo Bonzini optstr ? optstr : ""); 643baacf047SPaolo Bonzini } 644baacf047SPaolo Bonzini } 645baacf047SPaolo Bonzini qemu_opts_del(opts); 646baacf047SPaolo Bonzini } 647baacf047SPaolo Bonzini return sock; 648baacf047SPaolo Bonzini } 649baacf047SPaolo Bonzini 650baacf047SPaolo Bonzini /** 651baacf047SPaolo Bonzini * Create a blocking socket and connect it to an address. 652baacf047SPaolo Bonzini * 653baacf047SPaolo Bonzini * @str: address string 654baacf047SPaolo Bonzini * @errp: set in case of an error 655baacf047SPaolo Bonzini * 656baacf047SPaolo Bonzini * Returns -1 in case of error, file descriptor on success 657baacf047SPaolo Bonzini **/ 658baacf047SPaolo Bonzini int inet_connect(const char *str, Error **errp) 659baacf047SPaolo Bonzini { 660baacf047SPaolo Bonzini QemuOpts *opts; 661baacf047SPaolo Bonzini int sock = -1; 662baacf047SPaolo Bonzini InetSocketAddress *addr; 663baacf047SPaolo Bonzini 664baacf047SPaolo Bonzini addr = inet_parse(str, errp); 665baacf047SPaolo Bonzini if (addr != NULL) { 66687ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 667baacf047SPaolo Bonzini inet_addr_to_opts(opts, addr); 668baacf047SPaolo Bonzini qapi_free_InetSocketAddress(addr); 669baacf047SPaolo Bonzini sock = inet_connect_opts(opts, errp, NULL, NULL); 670baacf047SPaolo Bonzini qemu_opts_del(opts); 671baacf047SPaolo Bonzini } 672baacf047SPaolo Bonzini return sock; 673baacf047SPaolo Bonzini } 674baacf047SPaolo Bonzini 675baacf047SPaolo Bonzini /** 676baacf047SPaolo Bonzini * Create a non-blocking socket and connect it to an address. 677baacf047SPaolo Bonzini * Calls the callback function with fd in case of success or -1 in case of 678baacf047SPaolo Bonzini * error. 679baacf047SPaolo Bonzini * 680baacf047SPaolo Bonzini * @str: address string 681baacf047SPaolo Bonzini * @callback: callback function that is called when connect completes, 682baacf047SPaolo Bonzini * cannot be NULL. 683baacf047SPaolo Bonzini * @opaque: opaque for callback function 684baacf047SPaolo Bonzini * @errp: set in case of an error 685baacf047SPaolo Bonzini * 686baacf047SPaolo Bonzini * Returns: -1 on immediate error, file descriptor on success. 687baacf047SPaolo Bonzini **/ 688baacf047SPaolo Bonzini int inet_nonblocking_connect(const char *str, 689baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, 690baacf047SPaolo Bonzini void *opaque, Error **errp) 691baacf047SPaolo Bonzini { 692baacf047SPaolo Bonzini QemuOpts *opts; 693baacf047SPaolo Bonzini int sock = -1; 694baacf047SPaolo Bonzini InetSocketAddress *addr; 695baacf047SPaolo Bonzini 696baacf047SPaolo Bonzini g_assert(callback != NULL); 697baacf047SPaolo Bonzini 698baacf047SPaolo Bonzini addr = inet_parse(str, errp); 699baacf047SPaolo Bonzini if (addr != NULL) { 70087ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 701baacf047SPaolo Bonzini inet_addr_to_opts(opts, addr); 702baacf047SPaolo Bonzini qapi_free_InetSocketAddress(addr); 703baacf047SPaolo Bonzini sock = inet_connect_opts(opts, errp, callback, opaque); 704baacf047SPaolo Bonzini qemu_opts_del(opts); 705baacf047SPaolo Bonzini } 706baacf047SPaolo Bonzini return sock; 707baacf047SPaolo Bonzini } 708baacf047SPaolo Bonzini 709baacf047SPaolo Bonzini #ifndef _WIN32 710baacf047SPaolo Bonzini 711baacf047SPaolo Bonzini int unix_listen_opts(QemuOpts *opts, Error **errp) 712baacf047SPaolo Bonzini { 713baacf047SPaolo Bonzini struct sockaddr_un un; 714baacf047SPaolo Bonzini const char *path = qemu_opt_get(opts, "path"); 715baacf047SPaolo Bonzini int sock, fd; 716baacf047SPaolo Bonzini 717baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 718baacf047SPaolo Bonzini if (sock < 0) { 719b658c53dSPaolo Bonzini error_setg_errno(errp, errno, "Failed to create Unix socket"); 720baacf047SPaolo Bonzini return -1; 721baacf047SPaolo Bonzini } 722baacf047SPaolo Bonzini 723baacf047SPaolo Bonzini memset(&un, 0, sizeof(un)); 724baacf047SPaolo Bonzini un.sun_family = AF_UNIX; 725baacf047SPaolo Bonzini if (path && strlen(path)) { 726baacf047SPaolo Bonzini snprintf(un.sun_path, sizeof(un.sun_path), "%s", path); 727baacf047SPaolo Bonzini } else { 728b658c53dSPaolo Bonzini const char *tmpdir = getenv("TMPDIR"); 729b658c53dSPaolo Bonzini tmpdir = tmpdir ? tmpdir : "/tmp"; 730b658c53dSPaolo Bonzini if (snprintf(un.sun_path, sizeof(un.sun_path), "%s/qemu-socket-XXXXXX", 731b658c53dSPaolo Bonzini tmpdir) >= sizeof(un.sun_path)) { 732b658c53dSPaolo Bonzini error_setg_errno(errp, errno, 733b658c53dSPaolo Bonzini "TMPDIR environment variable (%s) too large", tmpdir); 734b658c53dSPaolo Bonzini goto err; 735b658c53dSPaolo Bonzini } 736b658c53dSPaolo Bonzini 737baacf047SPaolo Bonzini /* 738baacf047SPaolo Bonzini * This dummy fd usage silences the mktemp() unsecure warning. 739baacf047SPaolo Bonzini * Using mkstemp() doesn't make things more secure here 740baacf047SPaolo Bonzini * though. bind() complains about existing files, so we have 741baacf047SPaolo Bonzini * to unlink first and thus re-open the race window. The 742baacf047SPaolo Bonzini * worst case possible is bind() failing, i.e. a DoS attack. 743baacf047SPaolo Bonzini */ 744b658c53dSPaolo Bonzini fd = mkstemp(un.sun_path); 745b658c53dSPaolo Bonzini if (fd < 0) { 746b658c53dSPaolo Bonzini error_setg_errno(errp, errno, 747b658c53dSPaolo Bonzini "Failed to make a temporary socket name in %s", tmpdir); 748b658c53dSPaolo Bonzini goto err; 749b658c53dSPaolo Bonzini } 750b658c53dSPaolo Bonzini close(fd); 751f43e47dbSMarkus Armbruster qemu_opt_set(opts, "path", un.sun_path, &error_abort); 752baacf047SPaolo Bonzini } 753baacf047SPaolo Bonzini 7540ef705a2SCole Robinson if ((access(un.sun_path, F_OK) == 0) && 7550ef705a2SCole Robinson unlink(un.sun_path) < 0) { 7560ef705a2SCole Robinson error_setg_errno(errp, errno, 7570ef705a2SCole Robinson "Failed to unlink socket %s", un.sun_path); 7580ef705a2SCole Robinson goto err; 7590ef705a2SCole Robinson } 760baacf047SPaolo Bonzini if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) { 761b658c53dSPaolo Bonzini error_setg_errno(errp, errno, "Failed to bind socket to %s", un.sun_path); 762baacf047SPaolo Bonzini goto err; 763baacf047SPaolo Bonzini } 764baacf047SPaolo Bonzini if (listen(sock, 1) < 0) { 765235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 766baacf047SPaolo Bonzini goto err; 767baacf047SPaolo Bonzini } 768baacf047SPaolo Bonzini 769baacf047SPaolo Bonzini return sock; 770baacf047SPaolo Bonzini 771baacf047SPaolo Bonzini err: 772baacf047SPaolo Bonzini closesocket(sock); 773baacf047SPaolo Bonzini return -1; 774baacf047SPaolo Bonzini } 775baacf047SPaolo Bonzini 776baacf047SPaolo Bonzini int unix_connect_opts(QemuOpts *opts, Error **errp, 777baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, void *opaque) 778baacf047SPaolo Bonzini { 779baacf047SPaolo Bonzini struct sockaddr_un un; 780baacf047SPaolo Bonzini const char *path = qemu_opt_get(opts, "path"); 781baacf047SPaolo Bonzini ConnectState *connect_state = NULL; 782baacf047SPaolo Bonzini int sock, rc; 783baacf047SPaolo Bonzini 7848108fd3eSGonglei if (path == NULL) { 785312fd5f2SMarkus Armbruster error_setg(errp, "unix connect: no path specified"); 786baacf047SPaolo Bonzini return -1; 787baacf047SPaolo Bonzini } 788baacf047SPaolo Bonzini 789baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 790baacf047SPaolo Bonzini if (sock < 0) { 791235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 792baacf047SPaolo Bonzini return -1; 793baacf047SPaolo Bonzini } 794baacf047SPaolo Bonzini if (callback != NULL) { 795baacf047SPaolo Bonzini connect_state = g_malloc0(sizeof(*connect_state)); 796baacf047SPaolo Bonzini connect_state->callback = callback; 797baacf047SPaolo Bonzini connect_state->opaque = opaque; 798f9e8caccSStefan Hajnoczi qemu_set_nonblock(sock); 799baacf047SPaolo Bonzini } 800baacf047SPaolo Bonzini 801baacf047SPaolo Bonzini memset(&un, 0, sizeof(un)); 802baacf047SPaolo Bonzini un.sun_family = AF_UNIX; 803baacf047SPaolo Bonzini snprintf(un.sun_path, sizeof(un.sun_path), "%s", path); 804baacf047SPaolo Bonzini 805baacf047SPaolo Bonzini /* connect to peer */ 806baacf047SPaolo Bonzini do { 807baacf047SPaolo Bonzini rc = 0; 808baacf047SPaolo Bonzini if (connect(sock, (struct sockaddr *) &un, sizeof(un)) < 0) { 809baacf047SPaolo Bonzini rc = -socket_error(); 810baacf047SPaolo Bonzini } 811baacf047SPaolo Bonzini } while (rc == -EINTR); 812baacf047SPaolo Bonzini 813baacf047SPaolo Bonzini if (connect_state != NULL && QEMU_SOCKET_RC_INPROGRESS(rc)) { 814baacf047SPaolo Bonzini connect_state->fd = sock; 81582e1cc4bSFam Zheng qemu_set_fd_handler(sock, NULL, wait_for_connect, connect_state); 816baacf047SPaolo Bonzini return sock; 817baacf047SPaolo Bonzini } else if (rc >= 0) { 818baacf047SPaolo Bonzini /* non blocking socket immediate success, call callback */ 819baacf047SPaolo Bonzini if (callback != NULL) { 82051795029SCorey Minyard callback(sock, NULL, opaque); 821baacf047SPaolo Bonzini } 822baacf047SPaolo Bonzini } 823baacf047SPaolo Bonzini 824baacf047SPaolo Bonzini if (rc < 0) { 825235256a2SMarkus Armbruster error_setg_errno(errp, -rc, "Failed to connect socket"); 826baacf047SPaolo Bonzini close(sock); 827baacf047SPaolo Bonzini sock = -1; 828baacf047SPaolo Bonzini } 829baacf047SPaolo Bonzini 830baacf047SPaolo Bonzini g_free(connect_state); 831baacf047SPaolo Bonzini return sock; 832baacf047SPaolo Bonzini } 833baacf047SPaolo Bonzini 834baacf047SPaolo Bonzini #else 835baacf047SPaolo Bonzini 836baacf047SPaolo Bonzini int unix_listen_opts(QemuOpts *opts, Error **errp) 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 843baacf047SPaolo Bonzini int unix_connect_opts(QemuOpts *opts, Error **errp, 844baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, void *opaque) 845baacf047SPaolo Bonzini { 846baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 847baacf047SPaolo Bonzini errno = ENOTSUP; 848baacf047SPaolo Bonzini return -1; 849baacf047SPaolo Bonzini } 850baacf047SPaolo Bonzini #endif 851baacf047SPaolo Bonzini 852baacf047SPaolo Bonzini /* compatibility wrapper */ 853baacf047SPaolo Bonzini int unix_listen(const char *str, char *ostr, int olen, Error **errp) 854baacf047SPaolo Bonzini { 855baacf047SPaolo Bonzini QemuOpts *opts; 856baacf047SPaolo Bonzini char *path, *optstr; 857baacf047SPaolo Bonzini int sock, len; 858baacf047SPaolo Bonzini 85987ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 860baacf047SPaolo Bonzini 861baacf047SPaolo Bonzini optstr = strchr(str, ','); 862baacf047SPaolo Bonzini if (optstr) { 863baacf047SPaolo Bonzini len = optstr - str; 864baacf047SPaolo Bonzini if (len) { 865baacf047SPaolo Bonzini path = g_malloc(len+1); 866baacf047SPaolo Bonzini snprintf(path, len+1, "%.*s", len, str); 867f43e47dbSMarkus Armbruster qemu_opt_set(opts, "path", path, &error_abort); 868baacf047SPaolo Bonzini g_free(path); 869baacf047SPaolo Bonzini } 870baacf047SPaolo Bonzini } else { 871f43e47dbSMarkus Armbruster qemu_opt_set(opts, "path", str, &error_abort); 872baacf047SPaolo Bonzini } 873baacf047SPaolo Bonzini 874baacf047SPaolo Bonzini sock = unix_listen_opts(opts, errp); 875baacf047SPaolo Bonzini 876baacf047SPaolo Bonzini if (sock != -1 && ostr) 877baacf047SPaolo Bonzini snprintf(ostr, olen, "%s%s", qemu_opt_get(opts, "path"), optstr ? optstr : ""); 878baacf047SPaolo Bonzini qemu_opts_del(opts); 879baacf047SPaolo Bonzini return sock; 880baacf047SPaolo Bonzini } 881baacf047SPaolo Bonzini 882baacf047SPaolo Bonzini int unix_connect(const char *path, Error **errp) 883baacf047SPaolo Bonzini { 884baacf047SPaolo Bonzini QemuOpts *opts; 885baacf047SPaolo Bonzini int sock; 886baacf047SPaolo Bonzini 88787ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 888f43e47dbSMarkus Armbruster qemu_opt_set(opts, "path", path, &error_abort); 889baacf047SPaolo Bonzini sock = unix_connect_opts(opts, errp, NULL, NULL); 890baacf047SPaolo Bonzini qemu_opts_del(opts); 891baacf047SPaolo Bonzini return sock; 892baacf047SPaolo Bonzini } 893baacf047SPaolo Bonzini 894baacf047SPaolo Bonzini 895baacf047SPaolo Bonzini int unix_nonblocking_connect(const char *path, 896baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, 897baacf047SPaolo Bonzini void *opaque, Error **errp) 898baacf047SPaolo Bonzini { 899baacf047SPaolo Bonzini QemuOpts *opts; 900baacf047SPaolo Bonzini int sock = -1; 901baacf047SPaolo Bonzini 902baacf047SPaolo Bonzini g_assert(callback != NULL); 903baacf047SPaolo Bonzini 90487ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 905f43e47dbSMarkus Armbruster qemu_opt_set(opts, "path", path, &error_abort); 906baacf047SPaolo Bonzini sock = unix_connect_opts(opts, errp, callback, opaque); 907baacf047SPaolo Bonzini qemu_opts_del(opts); 908baacf047SPaolo Bonzini return sock; 909baacf047SPaolo Bonzini } 910baacf047SPaolo Bonzini 911baacf047SPaolo Bonzini SocketAddress *socket_parse(const char *str, Error **errp) 912baacf047SPaolo Bonzini { 913afde3f8bSGerd Hoffmann SocketAddress *addr; 914baacf047SPaolo Bonzini 915afde3f8bSGerd Hoffmann addr = g_new0(SocketAddress, 1); 916baacf047SPaolo Bonzini if (strstart(str, "unix:", NULL)) { 917baacf047SPaolo Bonzini if (str[5] == '\0') { 918312fd5f2SMarkus Armbruster error_setg(errp, "invalid Unix socket address"); 919baacf047SPaolo Bonzini goto fail; 920baacf047SPaolo Bonzini } else { 921*2d32addaSEric Blake addr->type = SOCKET_ADDRESS_KIND_UNIX; 922*2d32addaSEric Blake addr->u.q_unix = g_new(UnixSocketAddress, 1); 923*2d32addaSEric Blake addr->u.q_unix->path = g_strdup(str + 5); 924baacf047SPaolo Bonzini } 925baacf047SPaolo Bonzini } else if (strstart(str, "fd:", NULL)) { 926baacf047SPaolo Bonzini if (str[3] == '\0') { 927312fd5f2SMarkus Armbruster error_setg(errp, "invalid file descriptor address"); 928baacf047SPaolo Bonzini goto fail; 929baacf047SPaolo Bonzini } else { 930*2d32addaSEric Blake addr->type = SOCKET_ADDRESS_KIND_FD; 931*2d32addaSEric Blake addr->u.fd = g_new(String, 1); 932*2d32addaSEric Blake addr->u.fd->str = g_strdup(str + 3); 933baacf047SPaolo Bonzini } 934baacf047SPaolo Bonzini } else { 935*2d32addaSEric Blake addr->type = SOCKET_ADDRESS_KIND_INET; 936*2d32addaSEric Blake addr->u.inet = inet_parse(str, errp); 937*2d32addaSEric Blake if (addr->u.inet == NULL) { 938baacf047SPaolo Bonzini goto fail; 939baacf047SPaolo Bonzini } 940baacf047SPaolo Bonzini } 941baacf047SPaolo Bonzini return addr; 942baacf047SPaolo Bonzini 943baacf047SPaolo Bonzini fail: 944baacf047SPaolo Bonzini qapi_free_SocketAddress(addr); 945baacf047SPaolo Bonzini return NULL; 946baacf047SPaolo Bonzini } 947baacf047SPaolo Bonzini 948baacf047SPaolo Bonzini int socket_connect(SocketAddress *addr, Error **errp, 949baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, void *opaque) 950baacf047SPaolo Bonzini { 951baacf047SPaolo Bonzini QemuOpts *opts; 952baacf047SPaolo Bonzini int fd; 953baacf047SPaolo Bonzini 95487ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 955*2d32addaSEric Blake switch (addr->type) { 956baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_INET: 957*2d32addaSEric Blake inet_addr_to_opts(opts, addr->u.inet); 958baacf047SPaolo Bonzini fd = inet_connect_opts(opts, errp, callback, opaque); 959baacf047SPaolo Bonzini break; 960baacf047SPaolo Bonzini 961baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_UNIX: 962*2d32addaSEric Blake qemu_opt_set(opts, "path", addr->u.q_unix->path, &error_abort); 963baacf047SPaolo Bonzini fd = unix_connect_opts(opts, errp, callback, opaque); 964baacf047SPaolo Bonzini break; 965baacf047SPaolo Bonzini 966baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_FD: 967*2d32addaSEric Blake fd = monitor_get_fd(cur_mon, addr->u.fd->str, errp); 968d1ec72a4SGerd Hoffmann if (fd >= 0 && callback) { 9691a751ebfSStefan Hajnoczi qemu_set_nonblock(fd); 97051795029SCorey Minyard callback(fd, NULL, opaque); 971baacf047SPaolo Bonzini } 972baacf047SPaolo Bonzini break; 973baacf047SPaolo Bonzini 974baacf047SPaolo Bonzini default: 975baacf047SPaolo Bonzini abort(); 976baacf047SPaolo Bonzini } 977baacf047SPaolo Bonzini qemu_opts_del(opts); 978baacf047SPaolo Bonzini return fd; 979baacf047SPaolo Bonzini } 980baacf047SPaolo Bonzini 981baacf047SPaolo Bonzini int socket_listen(SocketAddress *addr, Error **errp) 982baacf047SPaolo Bonzini { 983baacf047SPaolo Bonzini QemuOpts *opts; 984baacf047SPaolo Bonzini int fd; 985baacf047SPaolo Bonzini 98687ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 987*2d32addaSEric Blake switch (addr->type) { 988baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_INET: 989*2d32addaSEric Blake inet_addr_to_opts(opts, addr->u.inet); 990baacf047SPaolo Bonzini fd = inet_listen_opts(opts, 0, errp); 991baacf047SPaolo Bonzini break; 992baacf047SPaolo Bonzini 993baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_UNIX: 994*2d32addaSEric Blake qemu_opt_set(opts, "path", addr->u.q_unix->path, &error_abort); 995baacf047SPaolo Bonzini fd = unix_listen_opts(opts, errp); 996baacf047SPaolo Bonzini break; 997baacf047SPaolo Bonzini 998baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_FD: 999*2d32addaSEric Blake fd = monitor_get_fd(cur_mon, addr->u.fd->str, errp); 1000baacf047SPaolo Bonzini break; 1001baacf047SPaolo Bonzini 1002baacf047SPaolo Bonzini default: 1003baacf047SPaolo Bonzini abort(); 1004baacf047SPaolo Bonzini } 1005baacf047SPaolo Bonzini qemu_opts_del(opts); 1006baacf047SPaolo Bonzini return fd; 1007baacf047SPaolo Bonzini } 1008baacf047SPaolo Bonzini 10093ecc059dSGerd Hoffmann int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp) 10103ecc059dSGerd Hoffmann { 10113ecc059dSGerd Hoffmann QemuOpts *opts; 10123ecc059dSGerd Hoffmann int fd; 10133ecc059dSGerd Hoffmann 101487ea75d5SPeter Crosthwaite opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort); 1015*2d32addaSEric Blake switch (remote->type) { 10163ecc059dSGerd Hoffmann case SOCKET_ADDRESS_KIND_INET: 1017*2d32addaSEric Blake inet_addr_to_opts(opts, remote->u.inet); 10183ecc059dSGerd Hoffmann if (local) { 1019*2d32addaSEric Blake qemu_opt_set(opts, "localaddr", local->u.inet->host, &error_abort); 1020*2d32addaSEric Blake qemu_opt_set(opts, "localport", local->u.inet->port, &error_abort); 10213ecc059dSGerd Hoffmann } 10223ecc059dSGerd Hoffmann fd = inet_dgram_opts(opts, errp); 10233ecc059dSGerd Hoffmann break; 10243ecc059dSGerd Hoffmann 10253ecc059dSGerd Hoffmann default: 10263ecc059dSGerd Hoffmann error_setg(errp, "socket type unsupported for datagram"); 10277a5b6af1SGerd Hoffmann fd = -1; 10283ecc059dSGerd Hoffmann } 10293ecc059dSGerd Hoffmann qemu_opts_del(opts); 10303ecc059dSGerd Hoffmann return fd; 10313ecc059dSGerd Hoffmann } 103217c55decSDaniel P. Berrange 103317c55decSDaniel P. Berrange 103417c55decSDaniel P. Berrange static SocketAddress * 103517c55decSDaniel P. Berrange socket_sockaddr_to_address_inet(struct sockaddr_storage *sa, 103617c55decSDaniel P. Berrange socklen_t salen, 103717c55decSDaniel P. Berrange Error **errp) 103817c55decSDaniel P. Berrange { 103917c55decSDaniel P. Berrange char host[NI_MAXHOST]; 104017c55decSDaniel P. Berrange char serv[NI_MAXSERV]; 104117c55decSDaniel P. Berrange SocketAddress *addr; 104217c55decSDaniel P. Berrange int ret; 104317c55decSDaniel P. Berrange 104417c55decSDaniel P. Berrange ret = getnameinfo((struct sockaddr *)sa, salen, 104517c55decSDaniel P. Berrange host, sizeof(host), 104617c55decSDaniel P. Berrange serv, sizeof(serv), 104717c55decSDaniel P. Berrange NI_NUMERICHOST | NI_NUMERICSERV); 104817c55decSDaniel P. Berrange if (ret != 0) { 104917c55decSDaniel P. Berrange error_setg(errp, "Cannot format numeric socket address: %s", 105017c55decSDaniel P. Berrange gai_strerror(ret)); 105117c55decSDaniel P. Berrange return NULL; 105217c55decSDaniel P. Berrange } 105317c55decSDaniel P. Berrange 105417c55decSDaniel P. Berrange addr = g_new0(SocketAddress, 1); 1055*2d32addaSEric Blake addr->type = SOCKET_ADDRESS_KIND_INET; 1056*2d32addaSEric Blake addr->u.inet = g_new0(InetSocketAddress, 1); 1057*2d32addaSEric Blake addr->u.inet->host = g_strdup(host); 1058*2d32addaSEric Blake addr->u.inet->port = g_strdup(serv); 105917c55decSDaniel P. Berrange if (sa->ss_family == AF_INET) { 1060*2d32addaSEric Blake addr->u.inet->has_ipv4 = addr->u.inet->ipv4 = true; 106117c55decSDaniel P. Berrange } else { 1062*2d32addaSEric Blake addr->u.inet->has_ipv6 = addr->u.inet->ipv6 = true; 106317c55decSDaniel P. Berrange } 106417c55decSDaniel P. Berrange 106517c55decSDaniel P. Berrange return addr; 106617c55decSDaniel P. Berrange } 106717c55decSDaniel P. Berrange 106817c55decSDaniel P. Berrange 106917c55decSDaniel P. Berrange #ifndef WIN32 107017c55decSDaniel P. Berrange static SocketAddress * 107117c55decSDaniel P. Berrange socket_sockaddr_to_address_unix(struct sockaddr_storage *sa, 107217c55decSDaniel P. Berrange socklen_t salen, 107317c55decSDaniel P. Berrange Error **errp) 107417c55decSDaniel P. Berrange { 107517c55decSDaniel P. Berrange SocketAddress *addr; 107617c55decSDaniel P. Berrange struct sockaddr_un *su = (struct sockaddr_un *)sa; 107717c55decSDaniel P. Berrange 107817c55decSDaniel P. Berrange addr = g_new0(SocketAddress, 1); 1079*2d32addaSEric Blake addr->type = SOCKET_ADDRESS_KIND_UNIX; 1080*2d32addaSEric Blake addr->u.q_unix = g_new0(UnixSocketAddress, 1); 108117c55decSDaniel P. Berrange if (su->sun_path[0]) { 1082*2d32addaSEric Blake addr->u.q_unix->path = g_strndup(su->sun_path, 108317c55decSDaniel P. Berrange sizeof(su->sun_path)); 108417c55decSDaniel P. Berrange } 108517c55decSDaniel P. Berrange 108617c55decSDaniel P. Berrange return addr; 108717c55decSDaniel P. Berrange } 108817c55decSDaniel P. Berrange #endif /* WIN32 */ 108917c55decSDaniel P. Berrange 109017c55decSDaniel P. Berrange static SocketAddress * 109117c55decSDaniel P. Berrange socket_sockaddr_to_address(struct sockaddr_storage *sa, 109217c55decSDaniel P. Berrange socklen_t salen, 109317c55decSDaniel P. Berrange Error **errp) 109417c55decSDaniel P. Berrange { 109517c55decSDaniel P. Berrange switch (sa->ss_family) { 109617c55decSDaniel P. Berrange case AF_INET: 109717c55decSDaniel P. Berrange case AF_INET6: 109817c55decSDaniel P. Berrange return socket_sockaddr_to_address_inet(sa, salen, errp); 109917c55decSDaniel P. Berrange 110017c55decSDaniel P. Berrange #ifndef WIN32 110117c55decSDaniel P. Berrange case AF_UNIX: 110217c55decSDaniel P. Berrange return socket_sockaddr_to_address_unix(sa, salen, errp); 110317c55decSDaniel P. Berrange #endif /* WIN32 */ 110417c55decSDaniel P. Berrange 110517c55decSDaniel P. Berrange default: 110617c55decSDaniel P. Berrange error_setg(errp, "socket family %d unsupported", 110717c55decSDaniel P. Berrange sa->ss_family); 110817c55decSDaniel P. Berrange return NULL; 110917c55decSDaniel P. Berrange } 111017c55decSDaniel P. Berrange return 0; 111117c55decSDaniel P. Berrange } 111217c55decSDaniel P. Berrange 111317c55decSDaniel P. Berrange 111417c55decSDaniel P. Berrange SocketAddress *socket_local_address(int fd, Error **errp) 111517c55decSDaniel P. Berrange { 111617c55decSDaniel P. Berrange struct sockaddr_storage ss; 111717c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 111817c55decSDaniel P. Berrange 111917c55decSDaniel P. Berrange if (getsockname(fd, (struct sockaddr *)&ss, &sslen) < 0) { 112017c55decSDaniel P. Berrange error_setg_errno(errp, socket_error(), "%s", 112117c55decSDaniel P. Berrange "Unable to query local socket address"); 112217c55decSDaniel P. Berrange return NULL; 112317c55decSDaniel P. Berrange } 112417c55decSDaniel P. Berrange 112517c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 112617c55decSDaniel P. Berrange } 112717c55decSDaniel P. Berrange 112817c55decSDaniel P. Berrange 112917c55decSDaniel P. Berrange SocketAddress *socket_remote_address(int fd, Error **errp) 113017c55decSDaniel P. Berrange { 113117c55decSDaniel P. Berrange struct sockaddr_storage ss; 113217c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 113317c55decSDaniel P. Berrange 113417c55decSDaniel P. Berrange if (getpeername(fd, (struct sockaddr *)&ss, &sslen) < 0) { 113517c55decSDaniel P. Berrange error_setg_errno(errp, socket_error(), "%s", 113617c55decSDaniel P. Berrange "Unable to query remote socket address"); 113717c55decSDaniel P. Berrange return NULL; 113817c55decSDaniel P. Berrange } 113917c55decSDaniel P. Berrange 114017c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 114117c55decSDaniel P. Berrange } 11422a8e21c7SDaniel P. Berrange 11432a8e21c7SDaniel P. Berrange 11442a8e21c7SDaniel P. Berrange void qapi_copy_SocketAddress(SocketAddress **p_dest, 11452a8e21c7SDaniel P. Berrange SocketAddress *src) 11462a8e21c7SDaniel P. Berrange { 11472a8e21c7SDaniel P. Berrange QmpOutputVisitor *qov; 11482a8e21c7SDaniel P. Berrange QmpInputVisitor *qiv; 11492a8e21c7SDaniel P. Berrange Visitor *ov, *iv; 11502a8e21c7SDaniel P. Berrange QObject *obj; 11512a8e21c7SDaniel P. Berrange 11522a8e21c7SDaniel P. Berrange *p_dest = NULL; 11532a8e21c7SDaniel P. Berrange 11542a8e21c7SDaniel P. Berrange qov = qmp_output_visitor_new(); 11552a8e21c7SDaniel P. Berrange ov = qmp_output_get_visitor(qov); 11562a8e21c7SDaniel P. Berrange visit_type_SocketAddress(ov, &src, NULL, &error_abort); 11572a8e21c7SDaniel P. Berrange obj = qmp_output_get_qobject(qov); 11582a8e21c7SDaniel P. Berrange qmp_output_visitor_cleanup(qov); 11592a8e21c7SDaniel P. Berrange if (!obj) { 11602a8e21c7SDaniel P. Berrange return; 11612a8e21c7SDaniel P. Berrange } 11622a8e21c7SDaniel P. Berrange 11632a8e21c7SDaniel P. Berrange qiv = qmp_input_visitor_new(obj); 11642a8e21c7SDaniel P. Berrange iv = qmp_input_get_visitor(qiv); 11652a8e21c7SDaniel P. Berrange visit_type_SocketAddress(iv, p_dest, NULL, &error_abort); 11662a8e21c7SDaniel P. Berrange qmp_input_visitor_cleanup(qiv); 11672a8e21c7SDaniel P. Berrange qobject_decref(obj); 11682a8e21c7SDaniel P. Berrange } 1169