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 */ 18aafd7584SPeter Maydell #include "qemu/osdep.h" 19baacf047SPaolo Bonzini 206a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 216a02c806SStefan Hajnoczi #include <linux/vm_sockets.h> 226a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 236a02c806SStefan Hajnoczi 24baacf047SPaolo Bonzini #include "monitor/monitor.h" 25da34e65cSMarkus Armbruster #include "qapi/error.h" 26baacf047SPaolo Bonzini #include "qemu/sockets.h" 27baacf047SPaolo Bonzini #include "qemu/main-loop.h" 28b3db211fSDaniel P. Berrange #include "qapi/qobject-input-visitor.h" 29b3db211fSDaniel P. Berrange #include "qapi/qobject-output-visitor.h" 302a8e21c7SDaniel P. Berrange #include "qapi-visit.h" 31f348b6d1SVeronia Bahaa #include "qemu/cutils.h" 32baacf047SPaolo Bonzini 33baacf047SPaolo Bonzini #ifndef AI_ADDRCONFIG 34baacf047SPaolo Bonzini # define AI_ADDRCONFIG 0 35baacf047SPaolo Bonzini #endif 36340849a9SDaniel P. Berrange 373de3d698SWolfgang Bumiller #ifndef AI_V4MAPPED 383de3d698SWolfgang Bumiller # define AI_V4MAPPED 0 393de3d698SWolfgang Bumiller #endif 40baacf047SPaolo Bonzini 416979a813SDaniel P. Berrange #ifndef AI_NUMERICSERV 426979a813SDaniel P. Berrange # define AI_NUMERICSERV 0 436979a813SDaniel P. Berrange #endif 446979a813SDaniel P. Berrange 45baacf047SPaolo Bonzini 46baacf047SPaolo Bonzini static int inet_getport(struct addrinfo *e) 47baacf047SPaolo Bonzini { 48baacf047SPaolo Bonzini struct sockaddr_in *i4; 49baacf047SPaolo Bonzini struct sockaddr_in6 *i6; 50baacf047SPaolo Bonzini 51baacf047SPaolo Bonzini switch (e->ai_family) { 52baacf047SPaolo Bonzini case PF_INET6: 53baacf047SPaolo Bonzini i6 = (void*)e->ai_addr; 54baacf047SPaolo Bonzini return ntohs(i6->sin6_port); 55baacf047SPaolo Bonzini case PF_INET: 56baacf047SPaolo Bonzini i4 = (void*)e->ai_addr; 57baacf047SPaolo Bonzini return ntohs(i4->sin_port); 58baacf047SPaolo Bonzini default: 59baacf047SPaolo Bonzini return 0; 60baacf047SPaolo Bonzini } 61baacf047SPaolo Bonzini } 62baacf047SPaolo Bonzini 63baacf047SPaolo Bonzini static void inet_setport(struct addrinfo *e, int port) 64baacf047SPaolo Bonzini { 65baacf047SPaolo Bonzini struct sockaddr_in *i4; 66baacf047SPaolo Bonzini struct sockaddr_in6 *i6; 67baacf047SPaolo Bonzini 68baacf047SPaolo Bonzini switch (e->ai_family) { 69baacf047SPaolo Bonzini case PF_INET6: 70baacf047SPaolo Bonzini i6 = (void*)e->ai_addr; 71baacf047SPaolo Bonzini i6->sin6_port = htons(port); 72baacf047SPaolo Bonzini break; 73baacf047SPaolo Bonzini case PF_INET: 74baacf047SPaolo Bonzini i4 = (void*)e->ai_addr; 75baacf047SPaolo Bonzini i4->sin_port = htons(port); 76baacf047SPaolo Bonzini break; 77baacf047SPaolo Bonzini } 78baacf047SPaolo Bonzini } 79baacf047SPaolo Bonzini 80a589569fSWenchao Xia NetworkAddressFamily inet_netfamily(int family) 81a589569fSWenchao Xia { 82a589569fSWenchao Xia switch (family) { 83a589569fSWenchao Xia case PF_INET6: return NETWORK_ADDRESS_FAMILY_IPV6; 84a589569fSWenchao Xia case PF_INET: return NETWORK_ADDRESS_FAMILY_IPV4; 85a589569fSWenchao Xia case PF_UNIX: return NETWORK_ADDRESS_FAMILY_UNIX; 866a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 876a02c806SStefan Hajnoczi case PF_VSOCK: return NETWORK_ADDRESS_FAMILY_VSOCK; 886a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 89a589569fSWenchao Xia } 90a589569fSWenchao Xia return NETWORK_ADDRESS_FAMILY_UNKNOWN; 91a589569fSWenchao Xia } 92a589569fSWenchao Xia 931856835dSDaniel P. Berrange /* 941856835dSDaniel P. Berrange * Matrix we're trying to apply 951856835dSDaniel P. Berrange * 961856835dSDaniel P. Berrange * ipv4 ipv6 family 971856835dSDaniel P. Berrange * - - PF_UNSPEC 981856835dSDaniel P. Berrange * - f PF_INET 991856835dSDaniel P. Berrange * - t PF_INET6 1001856835dSDaniel P. Berrange * f - PF_INET6 1011856835dSDaniel P. Berrange * f f <error> 1021856835dSDaniel P. Berrange * f t PF_INET6 1031856835dSDaniel P. Berrange * t - PF_INET 1041856835dSDaniel P. Berrange * t f PF_INET 1051856835dSDaniel P. Berrange * t t PF_INET6 1061856835dSDaniel P. Berrange * 107d43eda3dSWei Jiangang * NB, this matrix is only about getting the necessary results 1081856835dSDaniel P. Berrange * from getaddrinfo(). Some of the cases require further work 1091856835dSDaniel P. Berrange * after reading results from getaddrinfo in order to fully 1101856835dSDaniel P. Berrange * apply the logic the end user wants. eg with the last case 1111856835dSDaniel P. Berrange * ipv4=t + ipv6=t + PF_INET6, getaddrinfo alone can only 1121856835dSDaniel P. Berrange * guarantee the ipv6=t part of the request - we need more 1131856835dSDaniel P. Berrange * checks to provide ipv4=t part of the guarantee. This is 1141856835dSDaniel P. Berrange * outside scope of this method and not currently handled by 1151856835dSDaniel P. Berrange * callers at all. 1161856835dSDaniel P. Berrange */ 117*c1b412f1SDaniel P. Berrange int inet_ai_family_from_address(InetSocketAddress *addr, 1181856835dSDaniel P. Berrange Error **errp) 1191856835dSDaniel P. Berrange { 1201856835dSDaniel P. Berrange if (addr->has_ipv6 && addr->has_ipv4 && 1211856835dSDaniel P. Berrange !addr->ipv6 && !addr->ipv4) { 1221856835dSDaniel P. Berrange error_setg(errp, "Cannot disable IPv4 and IPv6 at same time"); 1231856835dSDaniel P. Berrange return PF_UNSPEC; 1241856835dSDaniel P. Berrange } 1251856835dSDaniel P. Berrange if ((addr->has_ipv6 && addr->ipv6) || (addr->has_ipv4 && !addr->ipv4)) { 1261856835dSDaniel P. Berrange return PF_INET6; 1271856835dSDaniel P. Berrange } 1281856835dSDaniel P. Berrange if ((addr->has_ipv4 && addr->ipv4) || (addr->has_ipv6 && !addr->ipv6)) { 1291856835dSDaniel P. Berrange return PF_INET; 1301856835dSDaniel P. Berrange } 1311856835dSDaniel P. Berrange return PF_UNSPEC; 1321856835dSDaniel P. Berrange } 1331856835dSDaniel P. Berrange 1341856835dSDaniel P. Berrange static int inet_listen_saddr(InetSocketAddress *saddr, 1351856835dSDaniel P. Berrange int port_offset, 1361856835dSDaniel P. Berrange bool update_addr, 1371856835dSDaniel P. Berrange Error **errp) 138baacf047SPaolo Bonzini { 139baacf047SPaolo Bonzini struct addrinfo ai,*res,*e; 140baacf047SPaolo Bonzini char port[33]; 141baacf047SPaolo Bonzini char uaddr[INET6_ADDRSTRLEN+1]; 142baacf047SPaolo Bonzini char uport[33]; 1431856835dSDaniel P. Berrange int slisten, rc, port_min, port_max, p; 1441856835dSDaniel P. Berrange Error *err = NULL; 145baacf047SPaolo Bonzini 146baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 1473de3d698SWolfgang Bumiller ai.ai_flags = AI_PASSIVE; 1486979a813SDaniel P. Berrange if (saddr->has_numeric && saddr->numeric) { 1496979a813SDaniel P. Berrange ai.ai_flags |= AI_NUMERICHOST | AI_NUMERICSERV; 1506979a813SDaniel P. Berrange } 1511856835dSDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(saddr, &err); 152baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 153baacf047SPaolo Bonzini 1541856835dSDaniel P. Berrange if (err) { 1551856835dSDaniel P. Berrange error_propagate(errp, err); 1561856835dSDaniel P. Berrange return -1; 1571856835dSDaniel P. Berrange } 1581856835dSDaniel P. Berrange 1591856835dSDaniel P. Berrange if (saddr->host == NULL) { 1600983f5e6SDaniel P. Berrange error_setg(errp, "host not specified"); 161baacf047SPaolo Bonzini return -1; 162baacf047SPaolo Bonzini } 1631856835dSDaniel P. Berrange if (saddr->port != NULL) { 1641856835dSDaniel P. Berrange pstrcpy(port, sizeof(port), saddr->port); 1650983f5e6SDaniel P. Berrange } else { 1660983f5e6SDaniel P. Berrange port[0] = '\0'; 1670983f5e6SDaniel P. Berrange } 168baacf047SPaolo Bonzini 169baacf047SPaolo Bonzini /* lookup */ 1708bc89127SGerd Hoffmann if (port_offset) { 1718bc89127SGerd Hoffmann unsigned long long baseport; 1720983f5e6SDaniel P. Berrange if (strlen(port) == 0) { 1730983f5e6SDaniel P. Berrange error_setg(errp, "port not specified"); 1740983f5e6SDaniel P. Berrange return -1; 1750983f5e6SDaniel P. Berrange } 1768bc89127SGerd Hoffmann if (parse_uint_full(port, &baseport, 10) < 0) { 1778bc89127SGerd Hoffmann error_setg(errp, "can't convert to a number: %s", port); 1788bc89127SGerd Hoffmann return -1; 1798bc89127SGerd Hoffmann } 1808bc89127SGerd Hoffmann if (baseport > 65535 || 1818bc89127SGerd Hoffmann baseport + port_offset > 65535) { 1828bc89127SGerd Hoffmann error_setg(errp, "port %s out of range", port); 1838bc89127SGerd Hoffmann return -1; 1848bc89127SGerd Hoffmann } 1858bc89127SGerd Hoffmann snprintf(port, sizeof(port), "%d", (int)baseport + port_offset); 1868bc89127SGerd Hoffmann } 1871856835dSDaniel P. Berrange rc = getaddrinfo(strlen(saddr->host) ? saddr->host : NULL, 1880983f5e6SDaniel P. Berrange strlen(port) ? port : NULL, &ai, &res); 189baacf047SPaolo Bonzini if (rc != 0) { 1901856835dSDaniel P. Berrange error_setg(errp, "address resolution failed for %s:%s: %s", 1911856835dSDaniel P. Berrange saddr->host, port, gai_strerror(rc)); 192baacf047SPaolo Bonzini return -1; 193baacf047SPaolo Bonzini } 194baacf047SPaolo Bonzini 195baacf047SPaolo Bonzini /* create socket + bind */ 196baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 197baacf047SPaolo Bonzini getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen, 198baacf047SPaolo Bonzini uaddr,INET6_ADDRSTRLEN,uport,32, 199baacf047SPaolo Bonzini NI_NUMERICHOST | NI_NUMERICSERV); 200baacf047SPaolo Bonzini slisten = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol); 201baacf047SPaolo Bonzini if (slisten < 0) { 202baacf047SPaolo Bonzini if (!e->ai_next) { 203235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 204baacf047SPaolo Bonzini } 205baacf047SPaolo Bonzini continue; 206baacf047SPaolo Bonzini } 207baacf047SPaolo Bonzini 20804fd1c78SSebastian Ottlik socket_set_fast_reuse(slisten); 209baacf047SPaolo Bonzini #ifdef IPV6_V6ONLY 210baacf047SPaolo Bonzini if (e->ai_family == PF_INET6) { 211baacf047SPaolo Bonzini /* listen on both ipv4 and ipv6 */ 212f9b5426fSPeter Maydell const int off = 0; 2139957fc7fSStefan Weil qemu_setsockopt(slisten, IPPROTO_IPV6, IPV6_V6ONLY, &off, 214baacf047SPaolo Bonzini sizeof(off)); 215baacf047SPaolo Bonzini } 216baacf047SPaolo Bonzini #endif 217baacf047SPaolo Bonzini 218baacf047SPaolo Bonzini port_min = inet_getport(e); 2191856835dSDaniel P. Berrange port_max = saddr->has_to ? saddr->to + port_offset : port_min; 220baacf047SPaolo Bonzini for (p = port_min; p <= port_max; p++) { 221baacf047SPaolo Bonzini inet_setport(e, p); 222baacf047SPaolo Bonzini if (bind(slisten, e->ai_addr, e->ai_addrlen) == 0) { 223baacf047SPaolo Bonzini goto listen; 224baacf047SPaolo Bonzini } 225baacf047SPaolo Bonzini if (p == port_max) { 226baacf047SPaolo Bonzini if (!e->ai_next) { 227235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 228baacf047SPaolo Bonzini } 229baacf047SPaolo Bonzini } 230baacf047SPaolo Bonzini } 231baacf047SPaolo Bonzini closesocket(slisten); 232baacf047SPaolo Bonzini } 233baacf047SPaolo Bonzini freeaddrinfo(res); 234baacf047SPaolo Bonzini return -1; 235baacf047SPaolo Bonzini 236baacf047SPaolo Bonzini listen: 237baacf047SPaolo Bonzini if (listen(slisten,1) != 0) { 238235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 239baacf047SPaolo Bonzini closesocket(slisten); 240baacf047SPaolo Bonzini freeaddrinfo(res); 241baacf047SPaolo Bonzini return -1; 242baacf047SPaolo Bonzini } 2431856835dSDaniel P. Berrange if (update_addr) { 2441856835dSDaniel P. Berrange g_free(saddr->host); 2451856835dSDaniel P. Berrange saddr->host = g_strdup(uaddr); 2461856835dSDaniel P. Berrange g_free(saddr->port); 2471856835dSDaniel P. Berrange saddr->port = g_strdup_printf("%d", 2481856835dSDaniel P. Berrange inet_getport(e) - port_offset); 2491856835dSDaniel P. Berrange saddr->has_ipv6 = saddr->ipv6 = e->ai_family == PF_INET6; 2501856835dSDaniel P. Berrange saddr->has_ipv4 = saddr->ipv4 = e->ai_family != PF_INET6; 2511856835dSDaniel P. Berrange } 252baacf047SPaolo Bonzini freeaddrinfo(res); 253baacf047SPaolo Bonzini return slisten; 254baacf047SPaolo Bonzini } 255baacf047SPaolo Bonzini 256baacf047SPaolo Bonzini #ifdef _WIN32 257baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 258baacf047SPaolo Bonzini ((rc) == -EINPROGRESS || (rc) == -EWOULDBLOCK || (rc) == -WSAEALREADY) 259baacf047SPaolo Bonzini #else 260baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 261baacf047SPaolo Bonzini ((rc) == -EINPROGRESS) 262baacf047SPaolo Bonzini #endif 263baacf047SPaolo Bonzini 264baacf047SPaolo Bonzini /* Struct to store connect state for non blocking connect */ 265baacf047SPaolo Bonzini typedef struct ConnectState { 266baacf047SPaolo Bonzini int fd; 267baacf047SPaolo Bonzini struct addrinfo *addr_list; 268baacf047SPaolo Bonzini struct addrinfo *current_addr; 269baacf047SPaolo Bonzini NonBlockingConnectHandler *callback; 270baacf047SPaolo Bonzini void *opaque; 271baacf047SPaolo Bonzini } ConnectState; 272baacf047SPaolo Bonzini 273baacf047SPaolo Bonzini static int inet_connect_addr(struct addrinfo *addr, bool *in_progress, 274baacf047SPaolo Bonzini ConnectState *connect_state, Error **errp); 275baacf047SPaolo Bonzini 276baacf047SPaolo Bonzini static void wait_for_connect(void *opaque) 277baacf047SPaolo Bonzini { 278baacf047SPaolo Bonzini ConnectState *s = opaque; 279baacf047SPaolo Bonzini int val = 0, rc = 0; 280baacf047SPaolo Bonzini socklen_t valsize = sizeof(val); 281baacf047SPaolo Bonzini bool in_progress; 28251795029SCorey Minyard Error *err = NULL; 283baacf047SPaolo Bonzini 28482e1cc4bSFam Zheng qemu_set_fd_handler(s->fd, NULL, NULL, NULL); 285baacf047SPaolo Bonzini 286baacf047SPaolo Bonzini do { 2879957fc7fSStefan Weil rc = qemu_getsockopt(s->fd, SOL_SOCKET, SO_ERROR, &val, &valsize); 288b16a44e1SDaniel P. Berrange } while (rc == -1 && errno == EINTR); 289baacf047SPaolo Bonzini 290baacf047SPaolo Bonzini /* update rc to contain error */ 291baacf047SPaolo Bonzini if (!rc && val) { 292baacf047SPaolo Bonzini rc = -1; 29351795029SCorey Minyard errno = val; 294baacf047SPaolo Bonzini } 295baacf047SPaolo Bonzini 296baacf047SPaolo Bonzini /* connect error */ 297baacf047SPaolo Bonzini if (rc < 0) { 29851795029SCorey Minyard error_setg_errno(&err, errno, "Error connecting to socket"); 299baacf047SPaolo Bonzini closesocket(s->fd); 300baacf047SPaolo Bonzini s->fd = rc; 301baacf047SPaolo Bonzini } 302baacf047SPaolo Bonzini 303baacf047SPaolo Bonzini /* try to connect to the next address on the list */ 304baacf047SPaolo Bonzini if (s->current_addr) { 305baacf047SPaolo Bonzini while (s->current_addr->ai_next != NULL && s->fd < 0) { 306baacf047SPaolo Bonzini s->current_addr = s->current_addr->ai_next; 307baacf047SPaolo Bonzini s->fd = inet_connect_addr(s->current_addr, &in_progress, s, NULL); 30851795029SCorey Minyard if (s->fd < 0) { 30951795029SCorey Minyard error_free(err); 31051795029SCorey Minyard err = NULL; 31151795029SCorey Minyard error_setg_errno(&err, errno, "Unable to start socket connect"); 31251795029SCorey Minyard } 313baacf047SPaolo Bonzini /* connect in progress */ 314baacf047SPaolo Bonzini if (in_progress) { 31551795029SCorey Minyard goto out; 316baacf047SPaolo Bonzini } 317baacf047SPaolo Bonzini } 318baacf047SPaolo Bonzini 319baacf047SPaolo Bonzini freeaddrinfo(s->addr_list); 320baacf047SPaolo Bonzini } 321baacf047SPaolo Bonzini 322baacf047SPaolo Bonzini if (s->callback) { 32351795029SCorey Minyard s->callback(s->fd, err, s->opaque); 324baacf047SPaolo Bonzini } 325baacf047SPaolo Bonzini g_free(s); 32651795029SCorey Minyard out: 32751795029SCorey Minyard error_free(err); 328baacf047SPaolo Bonzini } 329baacf047SPaolo Bonzini 330baacf047SPaolo Bonzini static int inet_connect_addr(struct addrinfo *addr, bool *in_progress, 331baacf047SPaolo Bonzini ConnectState *connect_state, Error **errp) 332baacf047SPaolo Bonzini { 333baacf047SPaolo Bonzini int sock, rc; 334baacf047SPaolo Bonzini 335baacf047SPaolo Bonzini *in_progress = false; 336baacf047SPaolo Bonzini 337baacf047SPaolo Bonzini sock = qemu_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol); 338baacf047SPaolo Bonzini if (sock < 0) { 339235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 340baacf047SPaolo Bonzini return -1; 341baacf047SPaolo Bonzini } 34204fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 343baacf047SPaolo Bonzini if (connect_state != NULL) { 344f9e8caccSStefan Hajnoczi qemu_set_nonblock(sock); 345baacf047SPaolo Bonzini } 346baacf047SPaolo Bonzini /* connect to peer */ 347baacf047SPaolo Bonzini do { 348baacf047SPaolo Bonzini rc = 0; 349baacf047SPaolo Bonzini if (connect(sock, addr->ai_addr, addr->ai_addrlen) < 0) { 350b16a44e1SDaniel P. Berrange rc = -errno; 351baacf047SPaolo Bonzini } 352baacf047SPaolo Bonzini } while (rc == -EINTR); 353baacf047SPaolo Bonzini 354baacf047SPaolo Bonzini if (connect_state != NULL && QEMU_SOCKET_RC_INPROGRESS(rc)) { 355baacf047SPaolo Bonzini connect_state->fd = sock; 35682e1cc4bSFam Zheng qemu_set_fd_handler(sock, NULL, wait_for_connect, connect_state); 357baacf047SPaolo Bonzini *in_progress = true; 358baacf047SPaolo Bonzini } else if (rc < 0) { 359235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 360baacf047SPaolo Bonzini closesocket(sock); 361baacf047SPaolo Bonzini return -1; 362baacf047SPaolo Bonzini } 363baacf047SPaolo Bonzini return sock; 364baacf047SPaolo Bonzini } 365baacf047SPaolo Bonzini 3662942e420SDaniel P. Berrange static struct addrinfo *inet_parse_connect_saddr(InetSocketAddress *saddr, 3672942e420SDaniel P. Berrange Error **errp) 368baacf047SPaolo Bonzini { 369baacf047SPaolo Bonzini struct addrinfo ai, *res; 370baacf047SPaolo Bonzini int rc; 3712942e420SDaniel P. Berrange Error *err = NULL; 372340849a9SDaniel P. Berrange static int useV4Mapped = 1; 373baacf047SPaolo Bonzini 374baacf047SPaolo Bonzini memset(&ai, 0, sizeof(ai)); 375baacf047SPaolo Bonzini 376340849a9SDaniel P. Berrange ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG; 377340849a9SDaniel P. Berrange if (atomic_read(&useV4Mapped)) { 378340849a9SDaniel P. Berrange ai.ai_flags |= AI_V4MAPPED; 379340849a9SDaniel P. Berrange } 3802942e420SDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(saddr, &err); 381baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 382baacf047SPaolo Bonzini 3832942e420SDaniel P. Berrange if (err) { 3842942e420SDaniel P. Berrange error_propagate(errp, err); 3852942e420SDaniel P. Berrange return NULL; 3862942e420SDaniel P. Berrange } 3872942e420SDaniel P. Berrange 3882942e420SDaniel P. Berrange if (saddr->host == NULL || saddr->port == NULL) { 389baacf047SPaolo Bonzini error_setg(errp, "host and/or port not specified"); 390baacf047SPaolo Bonzini return NULL; 391baacf047SPaolo Bonzini } 392baacf047SPaolo Bonzini 393baacf047SPaolo Bonzini /* lookup */ 3942942e420SDaniel P. Berrange rc = getaddrinfo(saddr->host, saddr->port, &ai, &res); 395340849a9SDaniel P. Berrange 396340849a9SDaniel P. Berrange /* At least FreeBSD and OS-X 10.6 declare AI_V4MAPPED but 397340849a9SDaniel P. Berrange * then don't implement it in their getaddrinfo(). Detect 398340849a9SDaniel P. Berrange * this and retry without the flag since that's preferrable 399340849a9SDaniel P. Berrange * to a fatal error 400340849a9SDaniel P. Berrange */ 401340849a9SDaniel P. Berrange if (rc == EAI_BADFLAGS && 402340849a9SDaniel P. Berrange (ai.ai_flags & AI_V4MAPPED)) { 403340849a9SDaniel P. Berrange atomic_set(&useV4Mapped, 0); 404340849a9SDaniel P. Berrange ai.ai_flags &= ~AI_V4MAPPED; 405340849a9SDaniel P. Berrange rc = getaddrinfo(saddr->host, saddr->port, &ai, &res); 406340849a9SDaniel P. Berrange } 407baacf047SPaolo Bonzini if (rc != 0) { 4082942e420SDaniel P. Berrange error_setg(errp, "address resolution failed for %s:%s: %s", 4092942e420SDaniel P. Berrange saddr->host, saddr->port, gai_strerror(rc)); 410baacf047SPaolo Bonzini return NULL; 411baacf047SPaolo Bonzini } 412baacf047SPaolo Bonzini return res; 413baacf047SPaolo Bonzini } 414baacf047SPaolo Bonzini 415baacf047SPaolo Bonzini /** 416baacf047SPaolo Bonzini * Create a socket and connect it to an address. 417baacf047SPaolo Bonzini * 4182942e420SDaniel P. Berrange * @saddr: Inet socket address specification 419baacf047SPaolo Bonzini * @errp: set on error 420baacf047SPaolo Bonzini * @callback: callback function for non-blocking connect 421baacf047SPaolo Bonzini * @opaque: opaque for callback function 422baacf047SPaolo Bonzini * 423baacf047SPaolo Bonzini * Returns: -1 on error, file descriptor on success. 424baacf047SPaolo Bonzini * 425baacf047SPaolo Bonzini * If @callback is non-null, the connect is non-blocking. If this 426baacf047SPaolo Bonzini * function succeeds, callback will be called when the connection 427baacf047SPaolo Bonzini * completes, with the file descriptor on success, or -1 on error. 428baacf047SPaolo Bonzini */ 42989cadc9dSAshijeet Acharya int inet_connect_saddr(InetSocketAddress *saddr, Error **errp, 430baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, void *opaque) 431baacf047SPaolo Bonzini { 4323f9286b7SMarkus Armbruster Error *local_err = NULL; 433baacf047SPaolo Bonzini struct addrinfo *res, *e; 434baacf047SPaolo Bonzini int sock = -1; 435baacf047SPaolo Bonzini bool in_progress; 436baacf047SPaolo Bonzini ConnectState *connect_state = NULL; 437baacf047SPaolo Bonzini 4382942e420SDaniel P. Berrange res = inet_parse_connect_saddr(saddr, errp); 439baacf047SPaolo Bonzini if (!res) { 440baacf047SPaolo Bonzini return -1; 441baacf047SPaolo Bonzini } 442baacf047SPaolo Bonzini 443baacf047SPaolo Bonzini if (callback != NULL) { 444baacf047SPaolo Bonzini connect_state = g_malloc0(sizeof(*connect_state)); 445baacf047SPaolo Bonzini connect_state->addr_list = res; 446baacf047SPaolo Bonzini connect_state->callback = callback; 447baacf047SPaolo Bonzini connect_state->opaque = opaque; 448baacf047SPaolo Bonzini } 449baacf047SPaolo Bonzini 450baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 4513f9286b7SMarkus Armbruster error_free(local_err); 4523f9286b7SMarkus Armbruster local_err = NULL; 453baacf047SPaolo Bonzini if (connect_state != NULL) { 454baacf047SPaolo Bonzini connect_state->current_addr = e; 455baacf047SPaolo Bonzini } 4563f9286b7SMarkus Armbruster sock = inet_connect_addr(e, &in_progress, connect_state, &local_err); 4573f9286b7SMarkus Armbruster if (sock >= 0) { 458baacf047SPaolo Bonzini break; 459baacf047SPaolo Bonzini } 460baacf047SPaolo Bonzini } 4613f9286b7SMarkus Armbruster 4623f9286b7SMarkus Armbruster if (sock < 0) { 4633f9286b7SMarkus Armbruster error_propagate(errp, local_err); 4643f9286b7SMarkus Armbruster } else if (in_progress) { 4653f9286b7SMarkus Armbruster /* wait_for_connect() will do the rest */ 4663f9286b7SMarkus Armbruster return sock; 4673f9286b7SMarkus Armbruster } else { 4683f9286b7SMarkus Armbruster if (callback) { 46951795029SCorey Minyard callback(sock, NULL, opaque); 4703f9286b7SMarkus Armbruster } 4713f9286b7SMarkus Armbruster } 472baacf047SPaolo Bonzini g_free(connect_state); 473baacf047SPaolo Bonzini freeaddrinfo(res); 474baacf047SPaolo Bonzini return sock; 475baacf047SPaolo Bonzini } 476baacf047SPaolo Bonzini 4778b39910eSDaniel P. Berrange static int inet_dgram_saddr(InetSocketAddress *sraddr, 4788b39910eSDaniel P. Berrange InetSocketAddress *sladdr, 4798b39910eSDaniel P. Berrange Error **errp) 480baacf047SPaolo Bonzini { 481baacf047SPaolo Bonzini struct addrinfo ai, *peer = NULL, *local = NULL; 482baacf047SPaolo Bonzini const char *addr; 483baacf047SPaolo Bonzini const char *port; 484baacf047SPaolo Bonzini int sock = -1, rc; 4858b39910eSDaniel P. Berrange Error *err = NULL; 486baacf047SPaolo Bonzini 487baacf047SPaolo Bonzini /* lookup peer addr */ 488baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 4893de3d698SWolfgang Bumiller ai.ai_flags = AI_CANONNAME | AI_V4MAPPED | AI_ADDRCONFIG; 4908b39910eSDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(sraddr, &err); 491baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 492baacf047SPaolo Bonzini 4938b39910eSDaniel P. Berrange if (err) { 4948b39910eSDaniel P. Berrange error_propagate(errp, err); 49558c652c0SPaolo Bonzini goto err; 4968b39910eSDaniel P. Berrange } 4978b39910eSDaniel P. Berrange 4988b39910eSDaniel P. Berrange addr = sraddr->host; 4998b39910eSDaniel P. Berrange port = sraddr->port; 500baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 501baacf047SPaolo Bonzini addr = "localhost"; 502baacf047SPaolo Bonzini } 503baacf047SPaolo Bonzini if (port == NULL || strlen(port) == 0) { 504baacf047SPaolo Bonzini error_setg(errp, "remote port not specified"); 50558c652c0SPaolo Bonzini goto err; 506baacf047SPaolo Bonzini } 507baacf047SPaolo Bonzini 5089cd1883cSCao jin if ((rc = getaddrinfo(addr, port, &ai, &peer)) != 0) { 509baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 510baacf047SPaolo Bonzini gai_strerror(rc)); 51158c652c0SPaolo Bonzini goto err; 512baacf047SPaolo Bonzini } 513baacf047SPaolo Bonzini 514baacf047SPaolo Bonzini /* lookup local addr */ 515baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 516baacf047SPaolo Bonzini ai.ai_flags = AI_PASSIVE; 517baacf047SPaolo Bonzini ai.ai_family = peer->ai_family; 518baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 519baacf047SPaolo Bonzini 5208b39910eSDaniel P. Berrange if (sladdr) { 5218b39910eSDaniel P. Berrange addr = sladdr->host; 5228b39910eSDaniel P. Berrange port = sladdr->port; 523baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 524baacf047SPaolo Bonzini addr = NULL; 525baacf047SPaolo Bonzini } 5268b39910eSDaniel P. Berrange if (!port || strlen(port) == 0) { 527baacf047SPaolo Bonzini port = "0"; 5288b39910eSDaniel P. Berrange } 5298b39910eSDaniel P. Berrange } else { 5308b39910eSDaniel P. Berrange addr = NULL; 5318b39910eSDaniel P. Berrange port = "0"; 5328b39910eSDaniel P. Berrange } 533baacf047SPaolo Bonzini 5349cd1883cSCao jin if ((rc = getaddrinfo(addr, port, &ai, &local)) != 0) { 535baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 536baacf047SPaolo Bonzini gai_strerror(rc)); 537baacf047SPaolo Bonzini goto err; 538baacf047SPaolo Bonzini } 539baacf047SPaolo Bonzini 540baacf047SPaolo Bonzini /* create socket */ 541baacf047SPaolo Bonzini sock = qemu_socket(peer->ai_family, peer->ai_socktype, peer->ai_protocol); 542baacf047SPaolo Bonzini if (sock < 0) { 543235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 544baacf047SPaolo Bonzini goto err; 545baacf047SPaolo Bonzini } 54604fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 547baacf047SPaolo Bonzini 548baacf047SPaolo Bonzini /* bind socket */ 549baacf047SPaolo Bonzini if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) { 550235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 551baacf047SPaolo Bonzini goto err; 552baacf047SPaolo Bonzini } 553baacf047SPaolo Bonzini 554baacf047SPaolo Bonzini /* connect to peer */ 555baacf047SPaolo Bonzini if (connect(sock,peer->ai_addr,peer->ai_addrlen) < 0) { 556235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 557baacf047SPaolo Bonzini goto err; 558baacf047SPaolo Bonzini } 559baacf047SPaolo Bonzini 560baacf047SPaolo Bonzini freeaddrinfo(local); 561baacf047SPaolo Bonzini freeaddrinfo(peer); 562baacf047SPaolo Bonzini return sock; 563baacf047SPaolo Bonzini 564baacf047SPaolo Bonzini err: 56526015051SCao jin if (sock != -1) { 566baacf047SPaolo Bonzini closesocket(sock); 56726015051SCao jin } 56826015051SCao jin if (local) { 569baacf047SPaolo Bonzini freeaddrinfo(local); 57026015051SCao jin } 57126015051SCao jin if (peer) { 572baacf047SPaolo Bonzini freeaddrinfo(peer); 57326015051SCao jin } 57426015051SCao jin 575baacf047SPaolo Bonzini return -1; 576baacf047SPaolo Bonzini } 577baacf047SPaolo Bonzini 578baacf047SPaolo Bonzini /* compatibility wrapper */ 579f17c90beSKevin Wolf InetSocketAddress *inet_parse(const char *str, Error **errp) 580baacf047SPaolo Bonzini { 581baacf047SPaolo Bonzini InetSocketAddress *addr; 582baacf047SPaolo Bonzini const char *optstr, *h; 58355a10996SKevin Wolf char host[65]; 584baacf047SPaolo Bonzini char port[33]; 585baacf047SPaolo Bonzini int to; 586baacf047SPaolo Bonzini int pos; 587baacf047SPaolo Bonzini 588baacf047SPaolo Bonzini addr = g_new0(InetSocketAddress, 1); 589baacf047SPaolo Bonzini 590baacf047SPaolo Bonzini /* parse address */ 591baacf047SPaolo Bonzini if (str[0] == ':') { 592baacf047SPaolo Bonzini /* no host given */ 593baacf047SPaolo Bonzini host[0] = '\0'; 5949cd1883cSCao jin if (sscanf(str, ":%32[^,]%n", port, &pos) != 1) { 595baacf047SPaolo Bonzini error_setg(errp, "error parsing port in address '%s'", str); 596baacf047SPaolo Bonzini goto fail; 597baacf047SPaolo Bonzini } 598baacf047SPaolo Bonzini } else if (str[0] == '[') { 599baacf047SPaolo Bonzini /* IPv6 addr */ 6009cd1883cSCao jin if (sscanf(str, "[%64[^]]]:%32[^,]%n", host, port, &pos) != 2) { 601baacf047SPaolo Bonzini error_setg(errp, "error parsing IPv6 address '%s'", str); 602baacf047SPaolo Bonzini goto fail; 603baacf047SPaolo Bonzini } 604baacf047SPaolo Bonzini addr->ipv6 = addr->has_ipv6 = true; 605baacf047SPaolo Bonzini } else { 606391b7b97SJán Tomko /* hostname or IPv4 addr */ 6079cd1883cSCao jin if (sscanf(str, "%64[^:]:%32[^,]%n", host, port, &pos) != 2) { 608baacf047SPaolo Bonzini error_setg(errp, "error parsing address '%s'", str); 609baacf047SPaolo Bonzini goto fail; 610baacf047SPaolo Bonzini } 611391b7b97SJán Tomko if (host[strspn(host, "0123456789.")] == '\0') { 612391b7b97SJán Tomko addr->ipv4 = addr->has_ipv4 = true; 613391b7b97SJán Tomko } 614baacf047SPaolo Bonzini } 615baacf047SPaolo Bonzini 616baacf047SPaolo Bonzini addr->host = g_strdup(host); 617baacf047SPaolo Bonzini addr->port = g_strdup(port); 618baacf047SPaolo Bonzini 619baacf047SPaolo Bonzini /* parse options */ 620baacf047SPaolo Bonzini optstr = str + pos; 621baacf047SPaolo Bonzini h = strstr(optstr, ",to="); 622baacf047SPaolo Bonzini if (h) { 623baacf047SPaolo Bonzini h += 4; 624baacf047SPaolo Bonzini if (sscanf(h, "%d%n", &to, &pos) != 1 || 625baacf047SPaolo Bonzini (h[pos] != '\0' && h[pos] != ',')) { 626baacf047SPaolo Bonzini error_setg(errp, "error parsing to= argument"); 627baacf047SPaolo Bonzini goto fail; 628baacf047SPaolo Bonzini } 629baacf047SPaolo Bonzini addr->has_to = true; 630baacf047SPaolo Bonzini addr->to = to; 631baacf047SPaolo Bonzini } 632baacf047SPaolo Bonzini if (strstr(optstr, ",ipv4")) { 633baacf047SPaolo Bonzini addr->ipv4 = addr->has_ipv4 = true; 634baacf047SPaolo Bonzini } 635baacf047SPaolo Bonzini if (strstr(optstr, ",ipv6")) { 636baacf047SPaolo Bonzini addr->ipv6 = addr->has_ipv6 = true; 637baacf047SPaolo Bonzini } 638baacf047SPaolo Bonzini return addr; 639baacf047SPaolo Bonzini 640baacf047SPaolo Bonzini fail: 641baacf047SPaolo Bonzini qapi_free_InetSocketAddress(addr); 642baacf047SPaolo Bonzini return NULL; 643baacf047SPaolo Bonzini } 644baacf047SPaolo Bonzini 645baacf047SPaolo Bonzini 646baacf047SPaolo Bonzini /** 647baacf047SPaolo Bonzini * Create a blocking socket and connect it to an address. 648baacf047SPaolo Bonzini * 649baacf047SPaolo Bonzini * @str: address string 650baacf047SPaolo Bonzini * @errp: set in case of an error 651baacf047SPaolo Bonzini * 652baacf047SPaolo Bonzini * Returns -1 in case of error, file descriptor on success 653baacf047SPaolo Bonzini **/ 654baacf047SPaolo Bonzini int inet_connect(const char *str, Error **errp) 655baacf047SPaolo Bonzini { 656baacf047SPaolo Bonzini int sock = -1; 657baacf047SPaolo Bonzini InetSocketAddress *addr; 658baacf047SPaolo Bonzini 659baacf047SPaolo Bonzini addr = inet_parse(str, errp); 660baacf047SPaolo Bonzini if (addr != NULL) { 6612942e420SDaniel P. Berrange sock = inet_connect_saddr(addr, errp, NULL, NULL); 662baacf047SPaolo Bonzini qapi_free_InetSocketAddress(addr); 663baacf047SPaolo Bonzini } 664baacf047SPaolo Bonzini return sock; 665baacf047SPaolo Bonzini } 666baacf047SPaolo Bonzini 6676a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 6686a02c806SStefan Hajnoczi static bool vsock_parse_vaddr_to_sockaddr(const VsockSocketAddress *vaddr, 6696a02c806SStefan Hajnoczi struct sockaddr_vm *svm, 6706a02c806SStefan Hajnoczi Error **errp) 6716a02c806SStefan Hajnoczi { 6726a02c806SStefan Hajnoczi unsigned long long val; 6736a02c806SStefan Hajnoczi 6746a02c806SStefan Hajnoczi memset(svm, 0, sizeof(*svm)); 6756a02c806SStefan Hajnoczi svm->svm_family = AF_VSOCK; 6766a02c806SStefan Hajnoczi 6776a02c806SStefan Hajnoczi if (parse_uint_full(vaddr->cid, &val, 10) < 0 || 6786a02c806SStefan Hajnoczi val > UINT32_MAX) { 6796a02c806SStefan Hajnoczi error_setg(errp, "Failed to parse cid '%s'", vaddr->cid); 6806a02c806SStefan Hajnoczi return false; 6816a02c806SStefan Hajnoczi } 6826a02c806SStefan Hajnoczi svm->svm_cid = val; 6836a02c806SStefan Hajnoczi 6846a02c806SStefan Hajnoczi if (parse_uint_full(vaddr->port, &val, 10) < 0 || 6856a02c806SStefan Hajnoczi val > UINT32_MAX) { 6866a02c806SStefan Hajnoczi error_setg(errp, "Failed to parse port '%s'", vaddr->port); 6876a02c806SStefan Hajnoczi return false; 6886a02c806SStefan Hajnoczi } 6896a02c806SStefan Hajnoczi svm->svm_port = val; 6906a02c806SStefan Hajnoczi 6916a02c806SStefan Hajnoczi return true; 6926a02c806SStefan Hajnoczi } 6936a02c806SStefan Hajnoczi 6946a02c806SStefan Hajnoczi static int vsock_connect_addr(const struct sockaddr_vm *svm, bool *in_progress, 6956a02c806SStefan Hajnoczi ConnectState *connect_state, Error **errp) 6966a02c806SStefan Hajnoczi { 6976a02c806SStefan Hajnoczi int sock, rc; 6986a02c806SStefan Hajnoczi 6996a02c806SStefan Hajnoczi *in_progress = false; 7006a02c806SStefan Hajnoczi 7016a02c806SStefan Hajnoczi sock = qemu_socket(AF_VSOCK, SOCK_STREAM, 0); 7026a02c806SStefan Hajnoczi if (sock < 0) { 7036a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to create socket"); 7046a02c806SStefan Hajnoczi return -1; 7056a02c806SStefan Hajnoczi } 7066a02c806SStefan Hajnoczi if (connect_state != NULL) { 7076a02c806SStefan Hajnoczi qemu_set_nonblock(sock); 7086a02c806SStefan Hajnoczi } 7096a02c806SStefan Hajnoczi /* connect to peer */ 7106a02c806SStefan Hajnoczi do { 7116a02c806SStefan Hajnoczi rc = 0; 7126a02c806SStefan Hajnoczi if (connect(sock, (const struct sockaddr *)svm, sizeof(*svm)) < 0) { 7136a02c806SStefan Hajnoczi rc = -errno; 7146a02c806SStefan Hajnoczi } 7156a02c806SStefan Hajnoczi } while (rc == -EINTR); 7166a02c806SStefan Hajnoczi 7176a02c806SStefan Hajnoczi if (connect_state != NULL && QEMU_SOCKET_RC_INPROGRESS(rc)) { 7186a02c806SStefan Hajnoczi connect_state->fd = sock; 7196a02c806SStefan Hajnoczi qemu_set_fd_handler(sock, NULL, wait_for_connect, connect_state); 7206a02c806SStefan Hajnoczi *in_progress = true; 7216a02c806SStefan Hajnoczi } else if (rc < 0) { 7226a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to connect socket"); 7236a02c806SStefan Hajnoczi closesocket(sock); 7246a02c806SStefan Hajnoczi return -1; 7256a02c806SStefan Hajnoczi } 7266a02c806SStefan Hajnoczi return sock; 7276a02c806SStefan Hajnoczi } 7286a02c806SStefan Hajnoczi 7296a02c806SStefan Hajnoczi static int vsock_connect_saddr(VsockSocketAddress *vaddr, Error **errp, 7306a02c806SStefan Hajnoczi NonBlockingConnectHandler *callback, 7316a02c806SStefan Hajnoczi void *opaque) 7326a02c806SStefan Hajnoczi { 7336a02c806SStefan Hajnoczi struct sockaddr_vm svm; 7346a02c806SStefan Hajnoczi int sock = -1; 7356a02c806SStefan Hajnoczi bool in_progress; 7366a02c806SStefan Hajnoczi ConnectState *connect_state = NULL; 7376a02c806SStefan Hajnoczi 7386a02c806SStefan Hajnoczi if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) { 7396a02c806SStefan Hajnoczi return -1; 7406a02c806SStefan Hajnoczi } 7416a02c806SStefan Hajnoczi 7426a02c806SStefan Hajnoczi if (callback != NULL) { 7436a02c806SStefan Hajnoczi connect_state = g_malloc0(sizeof(*connect_state)); 7446a02c806SStefan Hajnoczi connect_state->callback = callback; 7456a02c806SStefan Hajnoczi connect_state->opaque = opaque; 7466a02c806SStefan Hajnoczi } 7476a02c806SStefan Hajnoczi 7486a02c806SStefan Hajnoczi sock = vsock_connect_addr(&svm, &in_progress, connect_state, errp); 7496a02c806SStefan Hajnoczi if (sock < 0) { 7506a02c806SStefan Hajnoczi /* do nothing */ 7516a02c806SStefan Hajnoczi } else if (in_progress) { 7526a02c806SStefan Hajnoczi /* wait_for_connect() will do the rest */ 7536a02c806SStefan Hajnoczi return sock; 7546a02c806SStefan Hajnoczi } else { 7556a02c806SStefan Hajnoczi if (callback) { 7566a02c806SStefan Hajnoczi callback(sock, NULL, opaque); 7576a02c806SStefan Hajnoczi } 7586a02c806SStefan Hajnoczi } 7596a02c806SStefan Hajnoczi g_free(connect_state); 7606a02c806SStefan Hajnoczi return sock; 7616a02c806SStefan Hajnoczi } 7626a02c806SStefan Hajnoczi 7636a02c806SStefan Hajnoczi static int vsock_listen_saddr(VsockSocketAddress *vaddr, 7646a02c806SStefan Hajnoczi Error **errp) 7656a02c806SStefan Hajnoczi { 7666a02c806SStefan Hajnoczi struct sockaddr_vm svm; 7676a02c806SStefan Hajnoczi int slisten; 7686a02c806SStefan Hajnoczi 7696a02c806SStefan Hajnoczi if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) { 7706a02c806SStefan Hajnoczi return -1; 7716a02c806SStefan Hajnoczi } 7726a02c806SStefan Hajnoczi 7736a02c806SStefan Hajnoczi slisten = qemu_socket(AF_VSOCK, SOCK_STREAM, 0); 7746a02c806SStefan Hajnoczi if (slisten < 0) { 7756a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to create socket"); 7766a02c806SStefan Hajnoczi return -1; 7776a02c806SStefan Hajnoczi } 7786a02c806SStefan Hajnoczi 7796a02c806SStefan Hajnoczi if (bind(slisten, (const struct sockaddr *)&svm, sizeof(svm)) != 0) { 7806a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to bind socket"); 7816a02c806SStefan Hajnoczi closesocket(slisten); 7826a02c806SStefan Hajnoczi return -1; 7836a02c806SStefan Hajnoczi } 7846a02c806SStefan Hajnoczi 7856a02c806SStefan Hajnoczi if (listen(slisten, 1) != 0) { 7866a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to listen on socket"); 7876a02c806SStefan Hajnoczi closesocket(slisten); 7886a02c806SStefan Hajnoczi return -1; 7896a02c806SStefan Hajnoczi } 7906a02c806SStefan Hajnoczi return slisten; 7916a02c806SStefan Hajnoczi } 7926a02c806SStefan Hajnoczi 7936a02c806SStefan Hajnoczi static VsockSocketAddress *vsock_parse(const char *str, Error **errp) 7946a02c806SStefan Hajnoczi { 7956a02c806SStefan Hajnoczi VsockSocketAddress *addr = NULL; 7966a02c806SStefan Hajnoczi char cid[33]; 7976a02c806SStefan Hajnoczi char port[33]; 7986a02c806SStefan Hajnoczi int n; 7996a02c806SStefan Hajnoczi 8006a02c806SStefan Hajnoczi if (sscanf(str, "%32[^:]:%32[^,]%n", cid, port, &n) != 2) { 8016a02c806SStefan Hajnoczi error_setg(errp, "error parsing address '%s'", str); 8026a02c806SStefan Hajnoczi return NULL; 8036a02c806SStefan Hajnoczi } 8046a02c806SStefan Hajnoczi if (str[n] != '\0') { 8056a02c806SStefan Hajnoczi error_setg(errp, "trailing characters in address '%s'", str); 8066a02c806SStefan Hajnoczi return NULL; 8076a02c806SStefan Hajnoczi } 8086a02c806SStefan Hajnoczi 8096a02c806SStefan Hajnoczi addr = g_new0(VsockSocketAddress, 1); 8106a02c806SStefan Hajnoczi addr->cid = g_strdup(cid); 8116a02c806SStefan Hajnoczi addr->port = g_strdup(port); 8126a02c806SStefan Hajnoczi return addr; 8136a02c806SStefan Hajnoczi } 8146a02c806SStefan Hajnoczi #else 8156a02c806SStefan Hajnoczi static void vsock_unsupported(Error **errp) 8166a02c806SStefan Hajnoczi { 8176a02c806SStefan Hajnoczi error_setg(errp, "socket family AF_VSOCK unsupported"); 8186a02c806SStefan Hajnoczi } 8196a02c806SStefan Hajnoczi 8206a02c806SStefan Hajnoczi static int vsock_connect_saddr(VsockSocketAddress *vaddr, Error **errp, 8216a02c806SStefan Hajnoczi NonBlockingConnectHandler *callback, 8226a02c806SStefan Hajnoczi void *opaque) 8236a02c806SStefan Hajnoczi { 8246a02c806SStefan Hajnoczi vsock_unsupported(errp); 8256a02c806SStefan Hajnoczi return -1; 8266a02c806SStefan Hajnoczi } 8276a02c806SStefan Hajnoczi 8286a02c806SStefan Hajnoczi static int vsock_listen_saddr(VsockSocketAddress *vaddr, 8296a02c806SStefan Hajnoczi Error **errp) 8306a02c806SStefan Hajnoczi { 8316a02c806SStefan Hajnoczi vsock_unsupported(errp); 8326a02c806SStefan Hajnoczi return -1; 8336a02c806SStefan Hajnoczi } 8346a02c806SStefan Hajnoczi 8356a02c806SStefan Hajnoczi static VsockSocketAddress *vsock_parse(const char *str, Error **errp) 8366a02c806SStefan Hajnoczi { 8376a02c806SStefan Hajnoczi vsock_unsupported(errp); 8386a02c806SStefan Hajnoczi return NULL; 8396a02c806SStefan Hajnoczi } 8406a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 8416a02c806SStefan Hajnoczi 842baacf047SPaolo Bonzini #ifndef _WIN32 843baacf047SPaolo Bonzini 8441856835dSDaniel P. Berrange static int unix_listen_saddr(UnixSocketAddress *saddr, 8451856835dSDaniel P. Berrange bool update_addr, 8461856835dSDaniel P. Berrange Error **errp) 847baacf047SPaolo Bonzini { 848baacf047SPaolo Bonzini struct sockaddr_un un; 849baacf047SPaolo Bonzini int sock, fd; 850baacf047SPaolo Bonzini 851baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 852baacf047SPaolo Bonzini if (sock < 0) { 853b658c53dSPaolo Bonzini error_setg_errno(errp, errno, "Failed to create Unix socket"); 854baacf047SPaolo Bonzini return -1; 855baacf047SPaolo Bonzini } 856baacf047SPaolo Bonzini 857baacf047SPaolo Bonzini memset(&un, 0, sizeof(un)); 858baacf047SPaolo Bonzini un.sun_family = AF_UNIX; 8591856835dSDaniel P. Berrange if (saddr->path && strlen(saddr->path)) { 8601856835dSDaniel P. Berrange snprintf(un.sun_path, sizeof(un.sun_path), "%s", saddr->path); 861baacf047SPaolo Bonzini } else { 862b658c53dSPaolo Bonzini const char *tmpdir = getenv("TMPDIR"); 863b658c53dSPaolo Bonzini tmpdir = tmpdir ? tmpdir : "/tmp"; 864b658c53dSPaolo Bonzini if (snprintf(un.sun_path, sizeof(un.sun_path), "%s/qemu-socket-XXXXXX", 865b658c53dSPaolo Bonzini tmpdir) >= sizeof(un.sun_path)) { 866b658c53dSPaolo Bonzini error_setg_errno(errp, errno, 867b658c53dSPaolo Bonzini "TMPDIR environment variable (%s) too large", tmpdir); 868b658c53dSPaolo Bonzini goto err; 869b658c53dSPaolo Bonzini } 870b658c53dSPaolo Bonzini 871baacf047SPaolo Bonzini /* 872baacf047SPaolo Bonzini * This dummy fd usage silences the mktemp() unsecure warning. 873baacf047SPaolo Bonzini * Using mkstemp() doesn't make things more secure here 874baacf047SPaolo Bonzini * though. bind() complains about existing files, so we have 875baacf047SPaolo Bonzini * to unlink first and thus re-open the race window. The 876baacf047SPaolo Bonzini * worst case possible is bind() failing, i.e. a DoS attack. 877baacf047SPaolo Bonzini */ 878b658c53dSPaolo Bonzini fd = mkstemp(un.sun_path); 879b658c53dSPaolo Bonzini if (fd < 0) { 880b658c53dSPaolo Bonzini error_setg_errno(errp, errno, 881b658c53dSPaolo Bonzini "Failed to make a temporary socket name in %s", tmpdir); 882b658c53dSPaolo Bonzini goto err; 883b658c53dSPaolo Bonzini } 884b658c53dSPaolo Bonzini close(fd); 8851856835dSDaniel P. Berrange if (update_addr) { 8861856835dSDaniel P. Berrange g_free(saddr->path); 8871856835dSDaniel P. Berrange saddr->path = g_strdup(un.sun_path); 8881856835dSDaniel P. Berrange } 889baacf047SPaolo Bonzini } 890baacf047SPaolo Bonzini 891a2f31f18SPaolo Bonzini if (unlink(un.sun_path) < 0 && errno != ENOENT) { 8920ef705a2SCole Robinson error_setg_errno(errp, errno, 8930ef705a2SCole Robinson "Failed to unlink socket %s", un.sun_path); 8940ef705a2SCole Robinson goto err; 8950ef705a2SCole Robinson } 896baacf047SPaolo Bonzini if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) { 897b658c53dSPaolo Bonzini error_setg_errno(errp, errno, "Failed to bind socket to %s", un.sun_path); 898baacf047SPaolo Bonzini goto err; 899baacf047SPaolo Bonzini } 900baacf047SPaolo Bonzini if (listen(sock, 1) < 0) { 901235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 902baacf047SPaolo Bonzini goto err; 903baacf047SPaolo Bonzini } 904baacf047SPaolo Bonzini 905baacf047SPaolo Bonzini return sock; 906baacf047SPaolo Bonzini 907baacf047SPaolo Bonzini err: 908baacf047SPaolo Bonzini closesocket(sock); 909baacf047SPaolo Bonzini return -1; 910baacf047SPaolo Bonzini } 911baacf047SPaolo Bonzini 9122942e420SDaniel P. Berrange static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp, 913baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, void *opaque) 914baacf047SPaolo Bonzini { 915baacf047SPaolo Bonzini struct sockaddr_un un; 916baacf047SPaolo Bonzini ConnectState *connect_state = NULL; 917baacf047SPaolo Bonzini int sock, rc; 918baacf047SPaolo Bonzini 9192942e420SDaniel P. Berrange if (saddr->path == NULL) { 920312fd5f2SMarkus Armbruster error_setg(errp, "unix connect: no path specified"); 921baacf047SPaolo Bonzini return -1; 922baacf047SPaolo Bonzini } 923baacf047SPaolo Bonzini 924baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 925baacf047SPaolo Bonzini if (sock < 0) { 926235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 927baacf047SPaolo Bonzini return -1; 928baacf047SPaolo Bonzini } 929baacf047SPaolo Bonzini if (callback != NULL) { 930baacf047SPaolo Bonzini connect_state = g_malloc0(sizeof(*connect_state)); 931baacf047SPaolo Bonzini connect_state->callback = callback; 932baacf047SPaolo Bonzini connect_state->opaque = opaque; 933f9e8caccSStefan Hajnoczi qemu_set_nonblock(sock); 934baacf047SPaolo Bonzini } 935baacf047SPaolo Bonzini 936baacf047SPaolo Bonzini memset(&un, 0, sizeof(un)); 937baacf047SPaolo Bonzini un.sun_family = AF_UNIX; 9382942e420SDaniel P. Berrange snprintf(un.sun_path, sizeof(un.sun_path), "%s", saddr->path); 939baacf047SPaolo Bonzini 940baacf047SPaolo Bonzini /* connect to peer */ 941baacf047SPaolo Bonzini do { 942baacf047SPaolo Bonzini rc = 0; 943baacf047SPaolo Bonzini if (connect(sock, (struct sockaddr *) &un, sizeof(un)) < 0) { 944b16a44e1SDaniel P. Berrange rc = -errno; 945baacf047SPaolo Bonzini } 946baacf047SPaolo Bonzini } while (rc == -EINTR); 947baacf047SPaolo Bonzini 948baacf047SPaolo Bonzini if (connect_state != NULL && QEMU_SOCKET_RC_INPROGRESS(rc)) { 949baacf047SPaolo Bonzini connect_state->fd = sock; 95082e1cc4bSFam Zheng qemu_set_fd_handler(sock, NULL, wait_for_connect, connect_state); 951baacf047SPaolo Bonzini return sock; 952baacf047SPaolo Bonzini } else if (rc >= 0) { 953baacf047SPaolo Bonzini /* non blocking socket immediate success, call callback */ 954baacf047SPaolo Bonzini if (callback != NULL) { 95551795029SCorey Minyard callback(sock, NULL, opaque); 956baacf047SPaolo Bonzini } 957baacf047SPaolo Bonzini } 958baacf047SPaolo Bonzini 959baacf047SPaolo Bonzini if (rc < 0) { 960235256a2SMarkus Armbruster error_setg_errno(errp, -rc, "Failed to connect socket"); 961baacf047SPaolo Bonzini close(sock); 962baacf047SPaolo Bonzini sock = -1; 963baacf047SPaolo Bonzini } 964baacf047SPaolo Bonzini 965baacf047SPaolo Bonzini g_free(connect_state); 966baacf047SPaolo Bonzini return sock; 967baacf047SPaolo Bonzini } 968baacf047SPaolo Bonzini 969baacf047SPaolo Bonzini #else 970baacf047SPaolo Bonzini 9711856835dSDaniel P. Berrange static int unix_listen_saddr(UnixSocketAddress *saddr, 9721856835dSDaniel P. Berrange bool update_addr, 9731856835dSDaniel P. Berrange Error **errp) 974baacf047SPaolo Bonzini { 975baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 976baacf047SPaolo Bonzini errno = ENOTSUP; 977baacf047SPaolo Bonzini return -1; 978baacf047SPaolo Bonzini } 979baacf047SPaolo Bonzini 9802942e420SDaniel P. Berrange static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp, 981baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, void *opaque) 982baacf047SPaolo Bonzini { 983baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 984baacf047SPaolo Bonzini errno = ENOTSUP; 985baacf047SPaolo Bonzini return -1; 986baacf047SPaolo Bonzini } 987baacf047SPaolo Bonzini #endif 988baacf047SPaolo Bonzini 989baacf047SPaolo Bonzini /* compatibility wrapper */ 990baacf047SPaolo Bonzini int unix_listen(const char *str, char *ostr, int olen, Error **errp) 991baacf047SPaolo Bonzini { 992baacf047SPaolo Bonzini char *path, *optstr; 993baacf047SPaolo Bonzini int sock, len; 9941856835dSDaniel P. Berrange UnixSocketAddress *saddr; 995baacf047SPaolo Bonzini 9961856835dSDaniel P. Berrange saddr = g_new0(UnixSocketAddress, 1); 997baacf047SPaolo Bonzini 998baacf047SPaolo Bonzini optstr = strchr(str, ','); 999baacf047SPaolo Bonzini if (optstr) { 1000baacf047SPaolo Bonzini len = optstr - str; 1001baacf047SPaolo Bonzini if (len) { 1002baacf047SPaolo Bonzini path = g_malloc(len+1); 1003baacf047SPaolo Bonzini snprintf(path, len+1, "%.*s", len, str); 10041856835dSDaniel P. Berrange saddr->path = path; 1005baacf047SPaolo Bonzini } 1006baacf047SPaolo Bonzini } else { 10071856835dSDaniel P. Berrange saddr->path = g_strdup(str); 1008baacf047SPaolo Bonzini } 1009baacf047SPaolo Bonzini 10101856835dSDaniel P. Berrange sock = unix_listen_saddr(saddr, true, errp); 1011baacf047SPaolo Bonzini 101226015051SCao jin if (sock != -1 && ostr) { 10131856835dSDaniel P. Berrange snprintf(ostr, olen, "%s%s", saddr->path, optstr ? optstr : ""); 101426015051SCao jin } 101526015051SCao jin 10161856835dSDaniel P. Berrange qapi_free_UnixSocketAddress(saddr); 1017baacf047SPaolo Bonzini return sock; 1018baacf047SPaolo Bonzini } 1019baacf047SPaolo Bonzini 1020baacf047SPaolo Bonzini int unix_connect(const char *path, Error **errp) 1021baacf047SPaolo Bonzini { 10222942e420SDaniel P. Berrange UnixSocketAddress *saddr; 1023baacf047SPaolo Bonzini int sock; 1024baacf047SPaolo Bonzini 10252942e420SDaniel P. Berrange saddr = g_new0(UnixSocketAddress, 1); 10262942e420SDaniel P. Berrange saddr->path = g_strdup(path); 10272942e420SDaniel P. Berrange sock = unix_connect_saddr(saddr, errp, NULL, NULL); 10282942e420SDaniel P. Berrange qapi_free_UnixSocketAddress(saddr); 1029baacf047SPaolo Bonzini return sock; 1030baacf047SPaolo Bonzini } 1031baacf047SPaolo Bonzini 1032baacf047SPaolo Bonzini 1033baacf047SPaolo Bonzini SocketAddress *socket_parse(const char *str, Error **errp) 1034baacf047SPaolo Bonzini { 1035afde3f8bSGerd Hoffmann SocketAddress *addr; 1036baacf047SPaolo Bonzini 1037afde3f8bSGerd Hoffmann addr = g_new0(SocketAddress, 1); 1038baacf047SPaolo Bonzini if (strstart(str, "unix:", NULL)) { 1039baacf047SPaolo Bonzini if (str[5] == '\0') { 1040312fd5f2SMarkus Armbruster error_setg(errp, "invalid Unix socket address"); 1041baacf047SPaolo Bonzini goto fail; 1042baacf047SPaolo Bonzini } else { 10432d32addaSEric Blake addr->type = SOCKET_ADDRESS_KIND_UNIX; 104432bafa8fSEric Blake addr->u.q_unix.data = g_new(UnixSocketAddress, 1); 104532bafa8fSEric Blake addr->u.q_unix.data->path = g_strdup(str + 5); 1046baacf047SPaolo Bonzini } 1047baacf047SPaolo Bonzini } else if (strstart(str, "fd:", NULL)) { 1048baacf047SPaolo Bonzini if (str[3] == '\0') { 1049312fd5f2SMarkus Armbruster error_setg(errp, "invalid file descriptor address"); 1050baacf047SPaolo Bonzini goto fail; 1051baacf047SPaolo Bonzini } else { 10522d32addaSEric Blake addr->type = SOCKET_ADDRESS_KIND_FD; 105332bafa8fSEric Blake addr->u.fd.data = g_new(String, 1); 105432bafa8fSEric Blake addr->u.fd.data->str = g_strdup(str + 3); 1055baacf047SPaolo Bonzini } 10566a02c806SStefan Hajnoczi } else if (strstart(str, "vsock:", NULL)) { 10576a02c806SStefan Hajnoczi addr->type = SOCKET_ADDRESS_KIND_VSOCK; 10586a02c806SStefan Hajnoczi addr->u.vsock.data = vsock_parse(str + strlen("vsock:"), errp); 10596a02c806SStefan Hajnoczi if (addr->u.vsock.data == NULL) { 10606a02c806SStefan Hajnoczi goto fail; 10616a02c806SStefan Hajnoczi } 1062baacf047SPaolo Bonzini } else { 10632d32addaSEric Blake addr->type = SOCKET_ADDRESS_KIND_INET; 106432bafa8fSEric Blake addr->u.inet.data = inet_parse(str, errp); 106532bafa8fSEric Blake if (addr->u.inet.data == NULL) { 1066baacf047SPaolo Bonzini goto fail; 1067baacf047SPaolo Bonzini } 1068baacf047SPaolo Bonzini } 1069baacf047SPaolo Bonzini return addr; 1070baacf047SPaolo Bonzini 1071baacf047SPaolo Bonzini fail: 1072baacf047SPaolo Bonzini qapi_free_SocketAddress(addr); 1073baacf047SPaolo Bonzini return NULL; 1074baacf047SPaolo Bonzini } 1075baacf047SPaolo Bonzini 1076baacf047SPaolo Bonzini int socket_connect(SocketAddress *addr, Error **errp, 1077baacf047SPaolo Bonzini NonBlockingConnectHandler *callback, void *opaque) 1078baacf047SPaolo Bonzini { 1079baacf047SPaolo Bonzini int fd; 1080baacf047SPaolo Bonzini 10812d32addaSEric Blake switch (addr->type) { 1082baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_INET: 108332bafa8fSEric Blake fd = inet_connect_saddr(addr->u.inet.data, errp, callback, opaque); 1084baacf047SPaolo Bonzini break; 1085baacf047SPaolo Bonzini 1086baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_UNIX: 108732bafa8fSEric Blake fd = unix_connect_saddr(addr->u.q_unix.data, errp, callback, opaque); 1088baacf047SPaolo Bonzini break; 1089baacf047SPaolo Bonzini 1090baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_FD: 109132bafa8fSEric Blake fd = monitor_get_fd(cur_mon, addr->u.fd.data->str, errp); 1092d1ec72a4SGerd Hoffmann if (fd >= 0 && callback) { 10931a751ebfSStefan Hajnoczi qemu_set_nonblock(fd); 109451795029SCorey Minyard callback(fd, NULL, opaque); 1095baacf047SPaolo Bonzini } 1096baacf047SPaolo Bonzini break; 1097baacf047SPaolo Bonzini 10986a02c806SStefan Hajnoczi case SOCKET_ADDRESS_KIND_VSOCK: 10996a02c806SStefan Hajnoczi fd = vsock_connect_saddr(addr->u.vsock.data, errp, callback, opaque); 11006a02c806SStefan Hajnoczi break; 11016a02c806SStefan Hajnoczi 1102baacf047SPaolo Bonzini default: 1103baacf047SPaolo Bonzini abort(); 1104baacf047SPaolo Bonzini } 1105baacf047SPaolo Bonzini return fd; 1106baacf047SPaolo Bonzini } 1107baacf047SPaolo Bonzini 1108baacf047SPaolo Bonzini int socket_listen(SocketAddress *addr, Error **errp) 1109baacf047SPaolo Bonzini { 1110baacf047SPaolo Bonzini int fd; 1111baacf047SPaolo Bonzini 11122d32addaSEric Blake switch (addr->type) { 1113baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_INET: 111432bafa8fSEric Blake fd = inet_listen_saddr(addr->u.inet.data, 0, false, errp); 1115baacf047SPaolo Bonzini break; 1116baacf047SPaolo Bonzini 1117baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_UNIX: 111832bafa8fSEric Blake fd = unix_listen_saddr(addr->u.q_unix.data, false, errp); 1119baacf047SPaolo Bonzini break; 1120baacf047SPaolo Bonzini 1121baacf047SPaolo Bonzini case SOCKET_ADDRESS_KIND_FD: 112232bafa8fSEric Blake fd = monitor_get_fd(cur_mon, addr->u.fd.data->str, errp); 1123baacf047SPaolo Bonzini break; 1124baacf047SPaolo Bonzini 11256a02c806SStefan Hajnoczi case SOCKET_ADDRESS_KIND_VSOCK: 11266a02c806SStefan Hajnoczi fd = vsock_listen_saddr(addr->u.vsock.data, errp); 11276a02c806SStefan Hajnoczi break; 11286a02c806SStefan Hajnoczi 1129baacf047SPaolo Bonzini default: 1130baacf047SPaolo Bonzini abort(); 1131baacf047SPaolo Bonzini } 1132baacf047SPaolo Bonzini return fd; 1133baacf047SPaolo Bonzini } 1134baacf047SPaolo Bonzini 113574b6ce43SMarc-André Lureau void socket_listen_cleanup(int fd, Error **errp) 113674b6ce43SMarc-André Lureau { 113774b6ce43SMarc-André Lureau SocketAddress *addr; 113874b6ce43SMarc-André Lureau 113974b6ce43SMarc-André Lureau addr = socket_local_address(fd, errp); 114074b6ce43SMarc-André Lureau 114174b6ce43SMarc-André Lureau if (addr->type == SOCKET_ADDRESS_KIND_UNIX 114274b6ce43SMarc-André Lureau && addr->u.q_unix.data->path) { 114374b6ce43SMarc-André Lureau if (unlink(addr->u.q_unix.data->path) < 0 && errno != ENOENT) { 114474b6ce43SMarc-André Lureau error_setg_errno(errp, errno, 114574b6ce43SMarc-André Lureau "Failed to unlink socket %s", 114674b6ce43SMarc-André Lureau addr->u.q_unix.data->path); 114774b6ce43SMarc-André Lureau } 114874b6ce43SMarc-André Lureau } 114974b6ce43SMarc-André Lureau 115073f40c18SMarc-André Lureau qapi_free_SocketAddress(addr); 115174b6ce43SMarc-André Lureau } 115274b6ce43SMarc-André Lureau 11533ecc059dSGerd Hoffmann int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp) 11543ecc059dSGerd Hoffmann { 11553ecc059dSGerd Hoffmann int fd; 11563ecc059dSGerd Hoffmann 11572d32addaSEric Blake switch (remote->type) { 11583ecc059dSGerd Hoffmann case SOCKET_ADDRESS_KIND_INET: 115932bafa8fSEric Blake fd = inet_dgram_saddr(remote->u.inet.data, 116032bafa8fSEric Blake local ? local->u.inet.data : NULL, errp); 11613ecc059dSGerd Hoffmann break; 11623ecc059dSGerd Hoffmann 11633ecc059dSGerd Hoffmann default: 11643ecc059dSGerd Hoffmann error_setg(errp, "socket type unsupported for datagram"); 11657a5b6af1SGerd Hoffmann fd = -1; 11663ecc059dSGerd Hoffmann } 11673ecc059dSGerd Hoffmann return fd; 11683ecc059dSGerd Hoffmann } 116917c55decSDaniel P. Berrange 117017c55decSDaniel P. Berrange 117117c55decSDaniel P. Berrange static SocketAddress * 117217c55decSDaniel P. Berrange socket_sockaddr_to_address_inet(struct sockaddr_storage *sa, 117317c55decSDaniel P. Berrange socklen_t salen, 117417c55decSDaniel P. Berrange Error **errp) 117517c55decSDaniel P. Berrange { 117617c55decSDaniel P. Berrange char host[NI_MAXHOST]; 117717c55decSDaniel P. Berrange char serv[NI_MAXSERV]; 117817c55decSDaniel P. Berrange SocketAddress *addr; 11790399293eSEric Blake InetSocketAddress *inet; 118017c55decSDaniel P. Berrange int ret; 118117c55decSDaniel P. Berrange 118217c55decSDaniel P. Berrange ret = getnameinfo((struct sockaddr *)sa, salen, 118317c55decSDaniel P. Berrange host, sizeof(host), 118417c55decSDaniel P. Berrange serv, sizeof(serv), 118517c55decSDaniel P. Berrange NI_NUMERICHOST | NI_NUMERICSERV); 118617c55decSDaniel P. Berrange if (ret != 0) { 118717c55decSDaniel P. Berrange error_setg(errp, "Cannot format numeric socket address: %s", 118817c55decSDaniel P. Berrange gai_strerror(ret)); 118917c55decSDaniel P. Berrange return NULL; 119017c55decSDaniel P. Berrange } 119117c55decSDaniel P. Berrange 119217c55decSDaniel P. Berrange addr = g_new0(SocketAddress, 1); 11932d32addaSEric Blake addr->type = SOCKET_ADDRESS_KIND_INET; 119432bafa8fSEric Blake inet = addr->u.inet.data = g_new0(InetSocketAddress, 1); 11950399293eSEric Blake inet->host = g_strdup(host); 11960399293eSEric Blake inet->port = g_strdup(serv); 119717c55decSDaniel P. Berrange if (sa->ss_family == AF_INET) { 11980399293eSEric Blake inet->has_ipv4 = inet->ipv4 = true; 119917c55decSDaniel P. Berrange } else { 12000399293eSEric Blake inet->has_ipv6 = inet->ipv6 = true; 120117c55decSDaniel P. Berrange } 120217c55decSDaniel P. Berrange 120317c55decSDaniel P. Berrange return addr; 120417c55decSDaniel P. Berrange } 120517c55decSDaniel P. Berrange 120617c55decSDaniel P. Berrange 120717c55decSDaniel P. Berrange #ifndef WIN32 120817c55decSDaniel P. Berrange static SocketAddress * 120917c55decSDaniel P. Berrange socket_sockaddr_to_address_unix(struct sockaddr_storage *sa, 121017c55decSDaniel P. Berrange socklen_t salen, 121117c55decSDaniel P. Berrange Error **errp) 121217c55decSDaniel P. Berrange { 121317c55decSDaniel P. Berrange SocketAddress *addr; 121417c55decSDaniel P. Berrange struct sockaddr_un *su = (struct sockaddr_un *)sa; 121517c55decSDaniel P. Berrange 121617c55decSDaniel P. Berrange addr = g_new0(SocketAddress, 1); 12172d32addaSEric Blake addr->type = SOCKET_ADDRESS_KIND_UNIX; 121832bafa8fSEric Blake addr->u.q_unix.data = g_new0(UnixSocketAddress, 1); 121917c55decSDaniel P. Berrange if (su->sun_path[0]) { 122032bafa8fSEric Blake addr->u.q_unix.data->path = g_strndup(su->sun_path, 122117c55decSDaniel P. Berrange sizeof(su->sun_path)); 122217c55decSDaniel P. Berrange } 122317c55decSDaniel P. Berrange 122417c55decSDaniel P. Berrange return addr; 122517c55decSDaniel P. Berrange } 122617c55decSDaniel P. Berrange #endif /* WIN32 */ 122717c55decSDaniel P. Berrange 12286a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 12296a02c806SStefan Hajnoczi static SocketAddress * 12306a02c806SStefan Hajnoczi socket_sockaddr_to_address_vsock(struct sockaddr_storage *sa, 12316a02c806SStefan Hajnoczi socklen_t salen, 12326a02c806SStefan Hajnoczi Error **errp) 12336a02c806SStefan Hajnoczi { 12346a02c806SStefan Hajnoczi SocketAddress *addr; 12356a02c806SStefan Hajnoczi VsockSocketAddress *vaddr; 12366a02c806SStefan Hajnoczi struct sockaddr_vm *svm = (struct sockaddr_vm *)sa; 12376a02c806SStefan Hajnoczi 12386a02c806SStefan Hajnoczi addr = g_new0(SocketAddress, 1); 12396a02c806SStefan Hajnoczi addr->type = SOCKET_ADDRESS_KIND_VSOCK; 12406a02c806SStefan Hajnoczi addr->u.vsock.data = vaddr = g_new0(VsockSocketAddress, 1); 12416a02c806SStefan Hajnoczi vaddr->cid = g_strdup_printf("%u", svm->svm_cid); 12426a02c806SStefan Hajnoczi vaddr->port = g_strdup_printf("%u", svm->svm_port); 12436a02c806SStefan Hajnoczi 12446a02c806SStefan Hajnoczi return addr; 12456a02c806SStefan Hajnoczi } 12466a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 12476a02c806SStefan Hajnoczi 1248559607eaSDaniel P. Berrange SocketAddress * 124917c55decSDaniel P. Berrange socket_sockaddr_to_address(struct sockaddr_storage *sa, 125017c55decSDaniel P. Berrange socklen_t salen, 125117c55decSDaniel P. Berrange Error **errp) 125217c55decSDaniel P. Berrange { 125317c55decSDaniel P. Berrange switch (sa->ss_family) { 125417c55decSDaniel P. Berrange case AF_INET: 125517c55decSDaniel P. Berrange case AF_INET6: 125617c55decSDaniel P. Berrange return socket_sockaddr_to_address_inet(sa, salen, errp); 125717c55decSDaniel P. Berrange 125817c55decSDaniel P. Berrange #ifndef WIN32 125917c55decSDaniel P. Berrange case AF_UNIX: 126017c55decSDaniel P. Berrange return socket_sockaddr_to_address_unix(sa, salen, errp); 126117c55decSDaniel P. Berrange #endif /* WIN32 */ 126217c55decSDaniel P. Berrange 12636a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 12646a02c806SStefan Hajnoczi case AF_VSOCK: 12656a02c806SStefan Hajnoczi return socket_sockaddr_to_address_vsock(sa, salen, errp); 12666a02c806SStefan Hajnoczi #endif 12676a02c806SStefan Hajnoczi 126817c55decSDaniel P. Berrange default: 126917c55decSDaniel P. Berrange error_setg(errp, "socket family %d unsupported", 127017c55decSDaniel P. Berrange sa->ss_family); 127117c55decSDaniel P. Berrange return NULL; 127217c55decSDaniel P. Berrange } 127317c55decSDaniel P. Berrange return 0; 127417c55decSDaniel P. Berrange } 127517c55decSDaniel P. Berrange 127617c55decSDaniel P. Berrange 127717c55decSDaniel P. Berrange SocketAddress *socket_local_address(int fd, Error **errp) 127817c55decSDaniel P. Berrange { 127917c55decSDaniel P. Berrange struct sockaddr_storage ss; 128017c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 128117c55decSDaniel P. Berrange 128217c55decSDaniel P. Berrange if (getsockname(fd, (struct sockaddr *)&ss, &sslen) < 0) { 1283b16a44e1SDaniel P. Berrange error_setg_errno(errp, errno, "%s", 128417c55decSDaniel P. Berrange "Unable to query local socket address"); 128517c55decSDaniel P. Berrange return NULL; 128617c55decSDaniel P. Berrange } 128717c55decSDaniel P. Berrange 128817c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 128917c55decSDaniel P. Berrange } 129017c55decSDaniel P. Berrange 129117c55decSDaniel P. Berrange 129217c55decSDaniel P. Berrange SocketAddress *socket_remote_address(int fd, Error **errp) 129317c55decSDaniel P. Berrange { 129417c55decSDaniel P. Berrange struct sockaddr_storage ss; 129517c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 129617c55decSDaniel P. Berrange 129717c55decSDaniel P. Berrange if (getpeername(fd, (struct sockaddr *)&ss, &sslen) < 0) { 1298b16a44e1SDaniel P. Berrange error_setg_errno(errp, errno, "%s", 129917c55decSDaniel P. Berrange "Unable to query remote socket address"); 130017c55decSDaniel P. Berrange return NULL; 130117c55decSDaniel P. Berrange } 130217c55decSDaniel P. Berrange 130317c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 130417c55decSDaniel P. Berrange } 13052a8e21c7SDaniel P. Berrange 13067e844959SAshijeet Acharya char *socket_address_to_string(struct SocketAddress *addr, Error **errp) 13077e844959SAshijeet Acharya { 13087e844959SAshijeet Acharya char *buf; 13097e844959SAshijeet Acharya InetSocketAddress *inet; 13107e844959SAshijeet Acharya char host_port[INET6_ADDRSTRLEN + 5 + 4]; 13117e844959SAshijeet Acharya 13127e844959SAshijeet Acharya switch (addr->type) { 13137e844959SAshijeet Acharya case SOCKET_ADDRESS_KIND_INET: 13147e844959SAshijeet Acharya inet = addr->u.inet.data; 13157e844959SAshijeet Acharya if (strchr(inet->host, ':') == NULL) { 13167e844959SAshijeet Acharya snprintf(host_port, sizeof(host_port), "%s:%s", inet->host, 13177e844959SAshijeet Acharya inet->port); 13187e844959SAshijeet Acharya buf = g_strdup(host_port); 13197e844959SAshijeet Acharya } else { 13207e844959SAshijeet Acharya snprintf(host_port, sizeof(host_port), "[%s]:%s", inet->host, 13217e844959SAshijeet Acharya inet->port); 13227e844959SAshijeet Acharya buf = g_strdup(host_port); 13237e844959SAshijeet Acharya } 13247e844959SAshijeet Acharya break; 13257e844959SAshijeet Acharya 13267e844959SAshijeet Acharya case SOCKET_ADDRESS_KIND_UNIX: 13277e844959SAshijeet Acharya buf = g_strdup(addr->u.q_unix.data->path); 13287e844959SAshijeet Acharya break; 13297e844959SAshijeet Acharya 13307e844959SAshijeet Acharya case SOCKET_ADDRESS_KIND_FD: 13317e844959SAshijeet Acharya buf = g_strdup(addr->u.fd.data->str); 13327e844959SAshijeet Acharya break; 13337e844959SAshijeet Acharya 13346a02c806SStefan Hajnoczi case SOCKET_ADDRESS_KIND_VSOCK: 13356a02c806SStefan Hajnoczi buf = g_strdup_printf("%s:%s", 13366a02c806SStefan Hajnoczi addr->u.vsock.data->cid, 13376a02c806SStefan Hajnoczi addr->u.vsock.data->port); 13386a02c806SStefan Hajnoczi break; 13396a02c806SStefan Hajnoczi 13407e844959SAshijeet Acharya default: 13417e844959SAshijeet Acharya error_setg(errp, "socket family %d unsupported", 13427e844959SAshijeet Acharya addr->type); 13437e844959SAshijeet Acharya return NULL; 13447e844959SAshijeet Acharya } 13457e844959SAshijeet Acharya return buf; 13467e844959SAshijeet Acharya } 1347