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" 25bd269ebcSMarkus Armbruster #include "qapi/clone-visitor.h" 26da34e65cSMarkus Armbruster #include "qapi/error.h" 27baacf047SPaolo Bonzini #include "qemu/sockets.h" 28baacf047SPaolo Bonzini #include "qemu/main-loop.h" 29216411b8SMarkus Armbruster #include "qapi/clone-visitor.h" 30b3db211fSDaniel P. Berrange #include "qapi/qobject-input-visitor.h" 31b3db211fSDaniel P. Berrange #include "qapi/qobject-output-visitor.h" 322a8e21c7SDaniel P. Berrange #include "qapi-visit.h" 33f348b6d1SVeronia Bahaa #include "qemu/cutils.h" 34baacf047SPaolo Bonzini 35baacf047SPaolo Bonzini #ifndef AI_ADDRCONFIG 36baacf047SPaolo Bonzini # define AI_ADDRCONFIG 0 37baacf047SPaolo Bonzini #endif 38340849a9SDaniel P. Berrange 393de3d698SWolfgang Bumiller #ifndef AI_V4MAPPED 403de3d698SWolfgang Bumiller # define AI_V4MAPPED 0 413de3d698SWolfgang Bumiller #endif 42baacf047SPaolo Bonzini 436979a813SDaniel P. Berrange #ifndef AI_NUMERICSERV 446979a813SDaniel P. Berrange # define AI_NUMERICSERV 0 456979a813SDaniel P. Berrange #endif 466979a813SDaniel P. Berrange 47baacf047SPaolo Bonzini 48baacf047SPaolo Bonzini static int inet_getport(struct addrinfo *e) 49baacf047SPaolo Bonzini { 50baacf047SPaolo Bonzini struct sockaddr_in *i4; 51baacf047SPaolo Bonzini struct sockaddr_in6 *i6; 52baacf047SPaolo Bonzini 53baacf047SPaolo Bonzini switch (e->ai_family) { 54baacf047SPaolo Bonzini case PF_INET6: 55baacf047SPaolo Bonzini i6 = (void*)e->ai_addr; 56baacf047SPaolo Bonzini return ntohs(i6->sin6_port); 57baacf047SPaolo Bonzini case PF_INET: 58baacf047SPaolo Bonzini i4 = (void*)e->ai_addr; 59baacf047SPaolo Bonzini return ntohs(i4->sin_port); 60baacf047SPaolo Bonzini default: 61baacf047SPaolo Bonzini return 0; 62baacf047SPaolo Bonzini } 63baacf047SPaolo Bonzini } 64baacf047SPaolo Bonzini 65baacf047SPaolo Bonzini static void inet_setport(struct addrinfo *e, int port) 66baacf047SPaolo Bonzini { 67baacf047SPaolo Bonzini struct sockaddr_in *i4; 68baacf047SPaolo Bonzini struct sockaddr_in6 *i6; 69baacf047SPaolo Bonzini 70baacf047SPaolo Bonzini switch (e->ai_family) { 71baacf047SPaolo Bonzini case PF_INET6: 72baacf047SPaolo Bonzini i6 = (void*)e->ai_addr; 73baacf047SPaolo Bonzini i6->sin6_port = htons(port); 74baacf047SPaolo Bonzini break; 75baacf047SPaolo Bonzini case PF_INET: 76baacf047SPaolo Bonzini i4 = (void*)e->ai_addr; 77baacf047SPaolo Bonzini i4->sin_port = htons(port); 78baacf047SPaolo Bonzini break; 79baacf047SPaolo Bonzini } 80baacf047SPaolo Bonzini } 81baacf047SPaolo Bonzini 82a589569fSWenchao Xia NetworkAddressFamily inet_netfamily(int family) 83a589569fSWenchao Xia { 84a589569fSWenchao Xia switch (family) { 85a589569fSWenchao Xia case PF_INET6: return NETWORK_ADDRESS_FAMILY_IPV6; 86a589569fSWenchao Xia case PF_INET: return NETWORK_ADDRESS_FAMILY_IPV4; 87a589569fSWenchao Xia case PF_UNIX: return NETWORK_ADDRESS_FAMILY_UNIX; 886a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 896a02c806SStefan Hajnoczi case PF_VSOCK: return NETWORK_ADDRESS_FAMILY_VSOCK; 906a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 91a589569fSWenchao Xia } 92a589569fSWenchao Xia return NETWORK_ADDRESS_FAMILY_UNKNOWN; 93a589569fSWenchao Xia } 94a589569fSWenchao Xia 951856835dSDaniel P. Berrange /* 961856835dSDaniel P. Berrange * Matrix we're trying to apply 971856835dSDaniel P. Berrange * 981856835dSDaniel P. Berrange * ipv4 ipv6 family 991856835dSDaniel P. Berrange * - - PF_UNSPEC 1001856835dSDaniel P. Berrange * - f PF_INET 1011856835dSDaniel P. Berrange * - t PF_INET6 1021856835dSDaniel P. Berrange * f - PF_INET6 1031856835dSDaniel P. Berrange * f f <error> 1041856835dSDaniel P. Berrange * f t PF_INET6 1051856835dSDaniel P. Berrange * t - PF_INET 1061856835dSDaniel P. Berrange * t f PF_INET 10794bc0d19SDaniel P. Berrange * t t PF_INET6/PF_UNSPEC 1081856835dSDaniel P. Berrange * 109d43eda3dSWei Jiangang * NB, this matrix is only about getting the necessary results 1101856835dSDaniel P. Berrange * from getaddrinfo(). Some of the cases require further work 1111856835dSDaniel P. Berrange * after reading results from getaddrinfo in order to fully 11294bc0d19SDaniel P. Berrange * apply the logic the end user wants. 11394bc0d19SDaniel P. Berrange * 11494bc0d19SDaniel P. Berrange * In the first and last cases, we must set IPV6_V6ONLY=0 11594bc0d19SDaniel P. Berrange * when binding, to allow a single listener to potentially 11694bc0d19SDaniel P. Berrange * accept both IPv4+6 addresses. 1171856835dSDaniel P. Berrange */ 118c1b412f1SDaniel P. Berrange int inet_ai_family_from_address(InetSocketAddress *addr, 1191856835dSDaniel P. Berrange Error **errp) 1201856835dSDaniel P. Berrange { 1211856835dSDaniel P. Berrange if (addr->has_ipv6 && addr->has_ipv4 && 1221856835dSDaniel P. Berrange !addr->ipv6 && !addr->ipv4) { 1231856835dSDaniel P. Berrange error_setg(errp, "Cannot disable IPv4 and IPv6 at same time"); 1241856835dSDaniel P. Berrange return PF_UNSPEC; 1251856835dSDaniel P. Berrange } 12694bc0d19SDaniel P. Berrange if ((addr->has_ipv6 && addr->ipv6) && (addr->has_ipv4 && addr->ipv4)) { 12794bc0d19SDaniel P. Berrange /* 12894bc0d19SDaniel P. Berrange * Some backends can only do a single listener. In that case 12994bc0d19SDaniel P. Berrange * we want empty hostname to resolve to "::" and then use the 13094bc0d19SDaniel P. Berrange * flag IPV6_V6ONLY==0 to get both protocols on 1 socket. This 13194bc0d19SDaniel P. Berrange * doesn't work for addresses other than "", so they're just 13294bc0d19SDaniel P. Berrange * inevitably broken until multiple listeners can be used, 13394bc0d19SDaniel P. Berrange * and thus we honour getaddrinfo automatic protocol detection 13494bc0d19SDaniel P. Berrange * Once all backends do multi-listener, remove the PF_INET6 13594bc0d19SDaniel P. Berrange * branch entirely. 13694bc0d19SDaniel P. Berrange */ 13794bc0d19SDaniel P. Berrange if (!addr->host || g_str_equal(addr->host, "")) { 13894bc0d19SDaniel P. Berrange return PF_INET6; 13994bc0d19SDaniel P. Berrange } else { 14094bc0d19SDaniel P. Berrange return PF_UNSPEC; 14194bc0d19SDaniel P. Berrange } 14294bc0d19SDaniel P. Berrange } 1431856835dSDaniel P. Berrange if ((addr->has_ipv6 && addr->ipv6) || (addr->has_ipv4 && !addr->ipv4)) { 1441856835dSDaniel P. Berrange return PF_INET6; 1451856835dSDaniel P. Berrange } 1461856835dSDaniel P. Berrange if ((addr->has_ipv4 && addr->ipv4) || (addr->has_ipv6 && !addr->ipv6)) { 1471856835dSDaniel P. Berrange return PF_INET; 1481856835dSDaniel P. Berrange } 1491856835dSDaniel P. Berrange return PF_UNSPEC; 1501856835dSDaniel P. Berrange } 1511856835dSDaniel P. Berrange 152*39f80521SKnut Omang static int create_fast_reuse_socket(struct addrinfo *e) 153*39f80521SKnut Omang { 154*39f80521SKnut Omang int slisten = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol); 155*39f80521SKnut Omang if (slisten < 0) { 156*39f80521SKnut Omang return -1; 157*39f80521SKnut Omang } 158*39f80521SKnut Omang socket_set_fast_reuse(slisten); 159*39f80521SKnut Omang return slisten; 160*39f80521SKnut Omang } 161*39f80521SKnut Omang 16289382c3dSKnut Omang static int try_bind(int socket, InetSocketAddress *saddr, struct addrinfo *e) 16389382c3dSKnut Omang { 16489382c3dSKnut Omang #ifndef IPV6_V6ONLY 16589382c3dSKnut Omang return bind(socket, e->ai_addr, e->ai_addrlen); 16689382c3dSKnut Omang #else 16789382c3dSKnut Omang /* 16889382c3dSKnut Omang * Deals with first & last cases in matrix in comment 16989382c3dSKnut Omang * for inet_ai_family_from_address(). 17089382c3dSKnut Omang */ 17189382c3dSKnut Omang int v6only = 17289382c3dSKnut Omang ((!saddr->has_ipv4 && !saddr->has_ipv6) || 17389382c3dSKnut Omang (saddr->has_ipv4 && saddr->ipv4 && 17489382c3dSKnut Omang saddr->has_ipv6 && saddr->ipv6)) ? 0 : 1; 17589382c3dSKnut Omang int stat; 17689382c3dSKnut Omang 17789382c3dSKnut Omang rebind: 17889382c3dSKnut Omang if (e->ai_family == PF_INET6) { 17989382c3dSKnut Omang qemu_setsockopt(socket, IPPROTO_IPV6, IPV6_V6ONLY, &v6only, 18089382c3dSKnut Omang sizeof(v6only)); 18189382c3dSKnut Omang } 18289382c3dSKnut Omang 18389382c3dSKnut Omang stat = bind(socket, e->ai_addr, e->ai_addrlen); 18489382c3dSKnut Omang if (!stat) { 18589382c3dSKnut Omang return 0; 18689382c3dSKnut Omang } 18789382c3dSKnut Omang 18889382c3dSKnut Omang /* If we got EADDRINUSE from an IPv6 bind & v6only is unset, 18989382c3dSKnut Omang * it could be that the IPv4 port is already claimed, so retry 19089382c3dSKnut Omang * with v6only set 19189382c3dSKnut Omang */ 19289382c3dSKnut Omang if (e->ai_family == PF_INET6 && errno == EADDRINUSE && !v6only) { 19389382c3dSKnut Omang v6only = 1; 19489382c3dSKnut Omang goto rebind; 19589382c3dSKnut Omang } 19689382c3dSKnut Omang return stat; 19789382c3dSKnut Omang #endif 19889382c3dSKnut Omang } 19989382c3dSKnut Omang 2001856835dSDaniel P. Berrange static int inet_listen_saddr(InetSocketAddress *saddr, 2011856835dSDaniel P. Berrange int port_offset, 2021856835dSDaniel P. Berrange bool update_addr, 2031856835dSDaniel P. Berrange Error **errp) 204baacf047SPaolo Bonzini { 205baacf047SPaolo Bonzini struct addrinfo ai,*res,*e; 206baacf047SPaolo Bonzini char port[33]; 207baacf047SPaolo Bonzini char uaddr[INET6_ADDRSTRLEN+1]; 208baacf047SPaolo Bonzini char uport[33]; 2091856835dSDaniel P. Berrange int slisten, rc, port_min, port_max, p; 2101856835dSDaniel P. Berrange Error *err = NULL; 211baacf047SPaolo Bonzini 212baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 2133de3d698SWolfgang Bumiller ai.ai_flags = AI_PASSIVE; 2146979a813SDaniel P. Berrange if (saddr->has_numeric && saddr->numeric) { 2156979a813SDaniel P. Berrange ai.ai_flags |= AI_NUMERICHOST | AI_NUMERICSERV; 2166979a813SDaniel P. Berrange } 2171856835dSDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(saddr, &err); 218baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 219baacf047SPaolo Bonzini 2201856835dSDaniel P. Berrange if (err) { 2211856835dSDaniel P. Berrange error_propagate(errp, err); 2221856835dSDaniel P. Berrange return -1; 2231856835dSDaniel P. Berrange } 2241856835dSDaniel P. Berrange 2251856835dSDaniel P. Berrange if (saddr->host == NULL) { 2260983f5e6SDaniel P. Berrange error_setg(errp, "host not specified"); 227baacf047SPaolo Bonzini return -1; 228baacf047SPaolo Bonzini } 2291856835dSDaniel P. Berrange if (saddr->port != NULL) { 2301856835dSDaniel P. Berrange pstrcpy(port, sizeof(port), saddr->port); 2310983f5e6SDaniel P. Berrange } else { 2320983f5e6SDaniel P. Berrange port[0] = '\0'; 2330983f5e6SDaniel P. Berrange } 234baacf047SPaolo Bonzini 235baacf047SPaolo Bonzini /* lookup */ 2368bc89127SGerd Hoffmann if (port_offset) { 2378bc89127SGerd Hoffmann unsigned long long baseport; 2380983f5e6SDaniel P. Berrange if (strlen(port) == 0) { 2390983f5e6SDaniel P. Berrange error_setg(errp, "port not specified"); 2400983f5e6SDaniel P. Berrange return -1; 2410983f5e6SDaniel P. Berrange } 2428bc89127SGerd Hoffmann if (parse_uint_full(port, &baseport, 10) < 0) { 2438bc89127SGerd Hoffmann error_setg(errp, "can't convert to a number: %s", port); 2448bc89127SGerd Hoffmann return -1; 2458bc89127SGerd Hoffmann } 2468bc89127SGerd Hoffmann if (baseport > 65535 || 2478bc89127SGerd Hoffmann baseport + port_offset > 65535) { 2488bc89127SGerd Hoffmann error_setg(errp, "port %s out of range", port); 2498bc89127SGerd Hoffmann return -1; 2508bc89127SGerd Hoffmann } 2518bc89127SGerd Hoffmann snprintf(port, sizeof(port), "%d", (int)baseport + port_offset); 2528bc89127SGerd Hoffmann } 2531856835dSDaniel P. Berrange rc = getaddrinfo(strlen(saddr->host) ? saddr->host : NULL, 2540983f5e6SDaniel P. Berrange strlen(port) ? port : NULL, &ai, &res); 255baacf047SPaolo Bonzini if (rc != 0) { 2561856835dSDaniel P. Berrange error_setg(errp, "address resolution failed for %s:%s: %s", 2571856835dSDaniel P. Berrange saddr->host, port, gai_strerror(rc)); 258baacf047SPaolo Bonzini return -1; 259baacf047SPaolo Bonzini } 260baacf047SPaolo Bonzini 261baacf047SPaolo Bonzini /* create socket + bind */ 262baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 263baacf047SPaolo Bonzini getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen, 264baacf047SPaolo Bonzini uaddr,INET6_ADDRSTRLEN,uport,32, 265baacf047SPaolo Bonzini NI_NUMERICHOST | NI_NUMERICSERV); 266*39f80521SKnut Omang 267*39f80521SKnut Omang slisten = create_fast_reuse_socket(e); 268baacf047SPaolo Bonzini if (slisten < 0) { 269baacf047SPaolo Bonzini if (!e->ai_next) { 270235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 271baacf047SPaolo Bonzini } 272baacf047SPaolo Bonzini continue; 273baacf047SPaolo Bonzini } 274baacf047SPaolo Bonzini 275baacf047SPaolo Bonzini port_min = inet_getport(e); 2761856835dSDaniel P. Berrange port_max = saddr->has_to ? saddr->to + port_offset : port_min; 277baacf047SPaolo Bonzini for (p = port_min; p <= port_max; p++) { 278baacf047SPaolo Bonzini inet_setport(e, p); 27989382c3dSKnut Omang if (try_bind(slisten, saddr, e) >= 0) { 280baacf047SPaolo Bonzini goto listen; 281baacf047SPaolo Bonzini } 282baacf047SPaolo Bonzini if (p == port_max) { 283baacf047SPaolo Bonzini if (!e->ai_next) { 284235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 285baacf047SPaolo Bonzini } 286baacf047SPaolo Bonzini } 287baacf047SPaolo Bonzini } 288baacf047SPaolo Bonzini closesocket(slisten); 289baacf047SPaolo Bonzini } 290baacf047SPaolo Bonzini freeaddrinfo(res); 291baacf047SPaolo Bonzini return -1; 292baacf047SPaolo Bonzini 293baacf047SPaolo Bonzini listen: 294baacf047SPaolo Bonzini if (listen(slisten,1) != 0) { 295235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 296baacf047SPaolo Bonzini closesocket(slisten); 297baacf047SPaolo Bonzini freeaddrinfo(res); 298baacf047SPaolo Bonzini return -1; 299baacf047SPaolo Bonzini } 3001856835dSDaniel P. Berrange if (update_addr) { 3011856835dSDaniel P. Berrange g_free(saddr->host); 3021856835dSDaniel P. Berrange saddr->host = g_strdup(uaddr); 3031856835dSDaniel P. Berrange g_free(saddr->port); 3041856835dSDaniel P. Berrange saddr->port = g_strdup_printf("%d", 3051856835dSDaniel P. Berrange inet_getport(e) - port_offset); 3061856835dSDaniel P. Berrange saddr->has_ipv6 = saddr->ipv6 = e->ai_family == PF_INET6; 3071856835dSDaniel P. Berrange saddr->has_ipv4 = saddr->ipv4 = e->ai_family != PF_INET6; 3081856835dSDaniel P. Berrange } 309baacf047SPaolo Bonzini freeaddrinfo(res); 310baacf047SPaolo Bonzini return slisten; 311baacf047SPaolo Bonzini } 312baacf047SPaolo Bonzini 313baacf047SPaolo Bonzini #ifdef _WIN32 314baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 315baacf047SPaolo Bonzini ((rc) == -EINPROGRESS || (rc) == -EWOULDBLOCK || (rc) == -WSAEALREADY) 316baacf047SPaolo Bonzini #else 317baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 318baacf047SPaolo Bonzini ((rc) == -EINPROGRESS) 319baacf047SPaolo Bonzini #endif 320baacf047SPaolo Bonzini 321b2587932SCao jin static int inet_connect_addr(struct addrinfo *addr, Error **errp); 322baacf047SPaolo Bonzini 323b2587932SCao jin static int inet_connect_addr(struct addrinfo *addr, Error **errp) 324baacf047SPaolo Bonzini { 325baacf047SPaolo Bonzini int sock, rc; 326baacf047SPaolo Bonzini 327baacf047SPaolo Bonzini sock = qemu_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol); 328baacf047SPaolo Bonzini if (sock < 0) { 329235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 330baacf047SPaolo Bonzini return -1; 331baacf047SPaolo Bonzini } 33204fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 333b2587932SCao jin 334baacf047SPaolo Bonzini /* connect to peer */ 335baacf047SPaolo Bonzini do { 336baacf047SPaolo Bonzini rc = 0; 337baacf047SPaolo Bonzini if (connect(sock, addr->ai_addr, addr->ai_addrlen) < 0) { 338b16a44e1SDaniel P. Berrange rc = -errno; 339baacf047SPaolo Bonzini } 340baacf047SPaolo Bonzini } while (rc == -EINTR); 341baacf047SPaolo Bonzini 342b2587932SCao jin if (rc < 0) { 343235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 344baacf047SPaolo Bonzini closesocket(sock); 345baacf047SPaolo Bonzini return -1; 346baacf047SPaolo Bonzini } 347b2587932SCao jin 348baacf047SPaolo Bonzini return sock; 349baacf047SPaolo Bonzini } 350baacf047SPaolo Bonzini 3512942e420SDaniel P. Berrange static struct addrinfo *inet_parse_connect_saddr(InetSocketAddress *saddr, 3522942e420SDaniel P. Berrange Error **errp) 353baacf047SPaolo Bonzini { 354baacf047SPaolo Bonzini struct addrinfo ai, *res; 355baacf047SPaolo Bonzini int rc; 3562942e420SDaniel P. Berrange Error *err = NULL; 357340849a9SDaniel P. Berrange static int useV4Mapped = 1; 358baacf047SPaolo Bonzini 359baacf047SPaolo Bonzini memset(&ai, 0, sizeof(ai)); 360baacf047SPaolo Bonzini 361340849a9SDaniel P. Berrange ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG; 362340849a9SDaniel P. Berrange if (atomic_read(&useV4Mapped)) { 363340849a9SDaniel P. Berrange ai.ai_flags |= AI_V4MAPPED; 364340849a9SDaniel P. Berrange } 3652942e420SDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(saddr, &err); 366baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 367baacf047SPaolo Bonzini 3682942e420SDaniel P. Berrange if (err) { 3692942e420SDaniel P. Berrange error_propagate(errp, err); 3702942e420SDaniel P. Berrange return NULL; 3712942e420SDaniel P. Berrange } 3722942e420SDaniel P. Berrange 3732942e420SDaniel P. Berrange if (saddr->host == NULL || saddr->port == NULL) { 374baacf047SPaolo Bonzini error_setg(errp, "host and/or port not specified"); 375baacf047SPaolo Bonzini return NULL; 376baacf047SPaolo Bonzini } 377baacf047SPaolo Bonzini 378baacf047SPaolo Bonzini /* lookup */ 3792942e420SDaniel P. Berrange rc = getaddrinfo(saddr->host, saddr->port, &ai, &res); 380340849a9SDaniel P. Berrange 381340849a9SDaniel P. Berrange /* At least FreeBSD and OS-X 10.6 declare AI_V4MAPPED but 382340849a9SDaniel P. Berrange * then don't implement it in their getaddrinfo(). Detect 383340849a9SDaniel P. Berrange * this and retry without the flag since that's preferrable 384340849a9SDaniel P. Berrange * to a fatal error 385340849a9SDaniel P. Berrange */ 386340849a9SDaniel P. Berrange if (rc == EAI_BADFLAGS && 387340849a9SDaniel P. Berrange (ai.ai_flags & AI_V4MAPPED)) { 388340849a9SDaniel P. Berrange atomic_set(&useV4Mapped, 0); 389340849a9SDaniel P. Berrange ai.ai_flags &= ~AI_V4MAPPED; 390340849a9SDaniel P. Berrange rc = getaddrinfo(saddr->host, saddr->port, &ai, &res); 391340849a9SDaniel P. Berrange } 392baacf047SPaolo Bonzini if (rc != 0) { 3932942e420SDaniel P. Berrange error_setg(errp, "address resolution failed for %s:%s: %s", 3942942e420SDaniel P. Berrange saddr->host, saddr->port, gai_strerror(rc)); 395baacf047SPaolo Bonzini return NULL; 396baacf047SPaolo Bonzini } 397baacf047SPaolo Bonzini return res; 398baacf047SPaolo Bonzini } 399baacf047SPaolo Bonzini 400baacf047SPaolo Bonzini /** 401baacf047SPaolo Bonzini * Create a socket and connect it to an address. 402baacf047SPaolo Bonzini * 4032942e420SDaniel P. Berrange * @saddr: Inet socket address specification 404baacf047SPaolo Bonzini * @errp: set on error 405baacf047SPaolo Bonzini * 406baacf047SPaolo Bonzini * Returns: -1 on error, file descriptor on success. 407baacf047SPaolo Bonzini */ 408b2587932SCao jin int inet_connect_saddr(InetSocketAddress *saddr, Error **errp) 409baacf047SPaolo Bonzini { 4103f9286b7SMarkus Armbruster Error *local_err = NULL; 411baacf047SPaolo Bonzini struct addrinfo *res, *e; 412baacf047SPaolo Bonzini int sock = -1; 413baacf047SPaolo Bonzini 4142942e420SDaniel P. Berrange res = inet_parse_connect_saddr(saddr, errp); 415baacf047SPaolo Bonzini if (!res) { 416baacf047SPaolo Bonzini return -1; 417baacf047SPaolo Bonzini } 418baacf047SPaolo Bonzini 419baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 4203f9286b7SMarkus Armbruster error_free(local_err); 4213f9286b7SMarkus Armbruster local_err = NULL; 422b2587932SCao jin sock = inet_connect_addr(e, &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 } 431b2587932SCao jin 432baacf047SPaolo Bonzini freeaddrinfo(res); 433baacf047SPaolo Bonzini return sock; 434baacf047SPaolo Bonzini } 435baacf047SPaolo Bonzini 4368b39910eSDaniel P. Berrange static int inet_dgram_saddr(InetSocketAddress *sraddr, 4378b39910eSDaniel P. Berrange InetSocketAddress *sladdr, 4388b39910eSDaniel P. Berrange Error **errp) 439baacf047SPaolo Bonzini { 440baacf047SPaolo Bonzini struct addrinfo ai, *peer = NULL, *local = NULL; 441baacf047SPaolo Bonzini const char *addr; 442baacf047SPaolo Bonzini const char *port; 443baacf047SPaolo Bonzini int sock = -1, rc; 4448b39910eSDaniel P. Berrange Error *err = NULL; 445baacf047SPaolo Bonzini 446baacf047SPaolo Bonzini /* lookup peer addr */ 447baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 4483de3d698SWolfgang Bumiller ai.ai_flags = AI_CANONNAME | AI_V4MAPPED | AI_ADDRCONFIG; 4498b39910eSDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(sraddr, &err); 450baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 451baacf047SPaolo Bonzini 4528b39910eSDaniel P. Berrange if (err) { 4538b39910eSDaniel P. Berrange error_propagate(errp, err); 45458c652c0SPaolo Bonzini goto err; 4558b39910eSDaniel P. Berrange } 4568b39910eSDaniel P. Berrange 4578b39910eSDaniel P. Berrange addr = sraddr->host; 4588b39910eSDaniel P. Berrange port = sraddr->port; 459baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 460baacf047SPaolo Bonzini addr = "localhost"; 461baacf047SPaolo Bonzini } 462baacf047SPaolo Bonzini if (port == NULL || strlen(port) == 0) { 463baacf047SPaolo Bonzini error_setg(errp, "remote port not specified"); 46458c652c0SPaolo Bonzini goto err; 465baacf047SPaolo Bonzini } 466baacf047SPaolo Bonzini 4679cd1883cSCao jin if ((rc = getaddrinfo(addr, port, &ai, &peer)) != 0) { 468baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 469baacf047SPaolo Bonzini gai_strerror(rc)); 47058c652c0SPaolo Bonzini goto err; 471baacf047SPaolo Bonzini } 472baacf047SPaolo Bonzini 473baacf047SPaolo Bonzini /* lookup local addr */ 474baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 475baacf047SPaolo Bonzini ai.ai_flags = AI_PASSIVE; 476baacf047SPaolo Bonzini ai.ai_family = peer->ai_family; 477baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 478baacf047SPaolo Bonzini 4798b39910eSDaniel P. Berrange if (sladdr) { 4808b39910eSDaniel P. Berrange addr = sladdr->host; 4818b39910eSDaniel P. Berrange port = sladdr->port; 482baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 483baacf047SPaolo Bonzini addr = NULL; 484baacf047SPaolo Bonzini } 4858b39910eSDaniel P. Berrange if (!port || strlen(port) == 0) { 486baacf047SPaolo Bonzini port = "0"; 4878b39910eSDaniel P. Berrange } 4888b39910eSDaniel P. Berrange } else { 4898b39910eSDaniel P. Berrange addr = NULL; 4908b39910eSDaniel P. Berrange port = "0"; 4918b39910eSDaniel P. Berrange } 492baacf047SPaolo Bonzini 4939cd1883cSCao jin if ((rc = getaddrinfo(addr, port, &ai, &local)) != 0) { 494baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 495baacf047SPaolo Bonzini gai_strerror(rc)); 496baacf047SPaolo Bonzini goto err; 497baacf047SPaolo Bonzini } 498baacf047SPaolo Bonzini 499baacf047SPaolo Bonzini /* create socket */ 500baacf047SPaolo Bonzini sock = qemu_socket(peer->ai_family, peer->ai_socktype, peer->ai_protocol); 501baacf047SPaolo Bonzini if (sock < 0) { 502235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 503baacf047SPaolo Bonzini goto err; 504baacf047SPaolo Bonzini } 50504fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 506baacf047SPaolo Bonzini 507baacf047SPaolo Bonzini /* bind socket */ 508baacf047SPaolo Bonzini if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) { 509235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 510baacf047SPaolo Bonzini goto err; 511baacf047SPaolo Bonzini } 512baacf047SPaolo Bonzini 513baacf047SPaolo Bonzini /* connect to peer */ 514baacf047SPaolo Bonzini if (connect(sock,peer->ai_addr,peer->ai_addrlen) < 0) { 515235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 516baacf047SPaolo Bonzini goto err; 517baacf047SPaolo Bonzini } 518baacf047SPaolo Bonzini 519baacf047SPaolo Bonzini freeaddrinfo(local); 520baacf047SPaolo Bonzini freeaddrinfo(peer); 521baacf047SPaolo Bonzini return sock; 522baacf047SPaolo Bonzini 523baacf047SPaolo Bonzini err: 52426015051SCao jin if (sock != -1) { 525baacf047SPaolo Bonzini closesocket(sock); 52626015051SCao jin } 52726015051SCao jin if (local) { 528baacf047SPaolo Bonzini freeaddrinfo(local); 52926015051SCao jin } 53026015051SCao jin if (peer) { 531baacf047SPaolo Bonzini freeaddrinfo(peer); 53226015051SCao jin } 53326015051SCao jin 534baacf047SPaolo Bonzini return -1; 535baacf047SPaolo Bonzini } 536baacf047SPaolo Bonzini 537baacf047SPaolo Bonzini /* compatibility wrapper */ 5380785bd7aSMarkus Armbruster int inet_parse(InetSocketAddress *addr, const char *str, Error **errp) 539baacf047SPaolo Bonzini { 540baacf047SPaolo Bonzini const char *optstr, *h; 54155a10996SKevin Wolf char host[65]; 542baacf047SPaolo Bonzini char port[33]; 543baacf047SPaolo Bonzini int to; 544baacf047SPaolo Bonzini int pos; 545baacf047SPaolo Bonzini 5460785bd7aSMarkus Armbruster memset(addr, 0, sizeof(*addr)); 547baacf047SPaolo Bonzini 548baacf047SPaolo Bonzini /* parse address */ 549baacf047SPaolo Bonzini if (str[0] == ':') { 550baacf047SPaolo Bonzini /* no host given */ 551baacf047SPaolo Bonzini host[0] = '\0'; 5529cd1883cSCao jin if (sscanf(str, ":%32[^,]%n", port, &pos) != 1) { 553baacf047SPaolo Bonzini error_setg(errp, "error parsing port in address '%s'", str); 5540785bd7aSMarkus Armbruster return -1; 555baacf047SPaolo Bonzini } 556baacf047SPaolo Bonzini } else if (str[0] == '[') { 557baacf047SPaolo Bonzini /* IPv6 addr */ 5589cd1883cSCao jin if (sscanf(str, "[%64[^]]]:%32[^,]%n", host, port, &pos) != 2) { 559baacf047SPaolo Bonzini error_setg(errp, "error parsing IPv6 address '%s'", str); 5600785bd7aSMarkus Armbruster return -1; 561baacf047SPaolo Bonzini } 562baacf047SPaolo Bonzini } else { 563391b7b97SJán Tomko /* hostname or IPv4 addr */ 5649cd1883cSCao jin if (sscanf(str, "%64[^:]:%32[^,]%n", host, port, &pos) != 2) { 565baacf047SPaolo Bonzini error_setg(errp, "error parsing address '%s'", str); 5660785bd7aSMarkus Armbruster return -1; 567baacf047SPaolo Bonzini } 568baacf047SPaolo Bonzini } 569baacf047SPaolo Bonzini 570baacf047SPaolo Bonzini addr->host = g_strdup(host); 571baacf047SPaolo Bonzini addr->port = g_strdup(port); 572baacf047SPaolo Bonzini 573baacf047SPaolo Bonzini /* parse options */ 574baacf047SPaolo Bonzini optstr = str + pos; 575baacf047SPaolo Bonzini h = strstr(optstr, ",to="); 576baacf047SPaolo Bonzini if (h) { 577baacf047SPaolo Bonzini h += 4; 578baacf047SPaolo Bonzini if (sscanf(h, "%d%n", &to, &pos) != 1 || 579baacf047SPaolo Bonzini (h[pos] != '\0' && h[pos] != ',')) { 580baacf047SPaolo Bonzini error_setg(errp, "error parsing to= argument"); 5810785bd7aSMarkus Armbruster return -1; 582baacf047SPaolo Bonzini } 583baacf047SPaolo Bonzini addr->has_to = true; 584baacf047SPaolo Bonzini addr->to = to; 585baacf047SPaolo Bonzini } 586baacf047SPaolo Bonzini if (strstr(optstr, ",ipv4")) { 587baacf047SPaolo Bonzini addr->ipv4 = addr->has_ipv4 = true; 588baacf047SPaolo Bonzini } 589baacf047SPaolo Bonzini if (strstr(optstr, ",ipv6")) { 590baacf047SPaolo Bonzini addr->ipv6 = addr->has_ipv6 = true; 591baacf047SPaolo Bonzini } 5920785bd7aSMarkus Armbruster return 0; 593baacf047SPaolo Bonzini } 594baacf047SPaolo Bonzini 595baacf047SPaolo Bonzini 596baacf047SPaolo Bonzini /** 597baacf047SPaolo Bonzini * Create a blocking socket and connect it to an address. 598baacf047SPaolo Bonzini * 599baacf047SPaolo Bonzini * @str: address string 600baacf047SPaolo Bonzini * @errp: set in case of an error 601baacf047SPaolo Bonzini * 602baacf047SPaolo Bonzini * Returns -1 in case of error, file descriptor on success 603baacf047SPaolo Bonzini **/ 604baacf047SPaolo Bonzini int inet_connect(const char *str, Error **errp) 605baacf047SPaolo Bonzini { 606baacf047SPaolo Bonzini int sock = -1; 6070785bd7aSMarkus Armbruster InetSocketAddress *addr = g_new(InetSocketAddress, 1); 608baacf047SPaolo Bonzini 6090785bd7aSMarkus Armbruster if (!inet_parse(addr, str, errp)) { 610b2587932SCao jin sock = inet_connect_saddr(addr, errp); 611baacf047SPaolo Bonzini } 6120785bd7aSMarkus Armbruster qapi_free_InetSocketAddress(addr); 613baacf047SPaolo Bonzini return sock; 614baacf047SPaolo Bonzini } 615baacf047SPaolo Bonzini 6166a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 6176a02c806SStefan Hajnoczi static bool vsock_parse_vaddr_to_sockaddr(const VsockSocketAddress *vaddr, 6186a02c806SStefan Hajnoczi struct sockaddr_vm *svm, 6196a02c806SStefan Hajnoczi Error **errp) 6206a02c806SStefan Hajnoczi { 6216a02c806SStefan Hajnoczi unsigned long long val; 6226a02c806SStefan Hajnoczi 6236a02c806SStefan Hajnoczi memset(svm, 0, sizeof(*svm)); 6246a02c806SStefan Hajnoczi svm->svm_family = AF_VSOCK; 6256a02c806SStefan Hajnoczi 6266a02c806SStefan Hajnoczi if (parse_uint_full(vaddr->cid, &val, 10) < 0 || 6276a02c806SStefan Hajnoczi val > UINT32_MAX) { 6286a02c806SStefan Hajnoczi error_setg(errp, "Failed to parse cid '%s'", vaddr->cid); 6296a02c806SStefan Hajnoczi return false; 6306a02c806SStefan Hajnoczi } 6316a02c806SStefan Hajnoczi svm->svm_cid = val; 6326a02c806SStefan Hajnoczi 6336a02c806SStefan Hajnoczi if (parse_uint_full(vaddr->port, &val, 10) < 0 || 6346a02c806SStefan Hajnoczi val > UINT32_MAX) { 6356a02c806SStefan Hajnoczi error_setg(errp, "Failed to parse port '%s'", vaddr->port); 6366a02c806SStefan Hajnoczi return false; 6376a02c806SStefan Hajnoczi } 6386a02c806SStefan Hajnoczi svm->svm_port = val; 6396a02c806SStefan Hajnoczi 6406a02c806SStefan Hajnoczi return true; 6416a02c806SStefan Hajnoczi } 6426a02c806SStefan Hajnoczi 643b2587932SCao jin static int vsock_connect_addr(const struct sockaddr_vm *svm, Error **errp) 6446a02c806SStefan Hajnoczi { 6456a02c806SStefan Hajnoczi int sock, rc; 6466a02c806SStefan Hajnoczi 6476a02c806SStefan Hajnoczi sock = qemu_socket(AF_VSOCK, SOCK_STREAM, 0); 6486a02c806SStefan Hajnoczi if (sock < 0) { 6496a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to create socket"); 6506a02c806SStefan Hajnoczi return -1; 6516a02c806SStefan Hajnoczi } 652b2587932SCao jin 6536a02c806SStefan Hajnoczi /* connect to peer */ 6546a02c806SStefan Hajnoczi do { 6556a02c806SStefan Hajnoczi rc = 0; 6566a02c806SStefan Hajnoczi if (connect(sock, (const struct sockaddr *)svm, sizeof(*svm)) < 0) { 6576a02c806SStefan Hajnoczi rc = -errno; 6586a02c806SStefan Hajnoczi } 6596a02c806SStefan Hajnoczi } while (rc == -EINTR); 6606a02c806SStefan Hajnoczi 661b2587932SCao jin if (rc < 0) { 6626a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to connect socket"); 6636a02c806SStefan Hajnoczi closesocket(sock); 6646a02c806SStefan Hajnoczi return -1; 6656a02c806SStefan Hajnoczi } 666b2587932SCao jin 6676a02c806SStefan Hajnoczi return sock; 6686a02c806SStefan Hajnoczi } 6696a02c806SStefan Hajnoczi 670b2587932SCao jin static int vsock_connect_saddr(VsockSocketAddress *vaddr, Error **errp) 6716a02c806SStefan Hajnoczi { 6726a02c806SStefan Hajnoczi struct sockaddr_vm svm; 6736a02c806SStefan Hajnoczi int sock = -1; 6746a02c806SStefan Hajnoczi 6756a02c806SStefan Hajnoczi if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) { 6766a02c806SStefan Hajnoczi return -1; 6776a02c806SStefan Hajnoczi } 6786a02c806SStefan Hajnoczi 679b2587932SCao jin sock = vsock_connect_addr(&svm, errp); 6806a02c806SStefan Hajnoczi 6816a02c806SStefan Hajnoczi return sock; 6826a02c806SStefan Hajnoczi } 6836a02c806SStefan Hajnoczi 6846a02c806SStefan Hajnoczi static int vsock_listen_saddr(VsockSocketAddress *vaddr, 6856a02c806SStefan Hajnoczi Error **errp) 6866a02c806SStefan Hajnoczi { 6876a02c806SStefan Hajnoczi struct sockaddr_vm svm; 6886a02c806SStefan Hajnoczi int slisten; 6896a02c806SStefan Hajnoczi 6906a02c806SStefan Hajnoczi if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) { 6916a02c806SStefan Hajnoczi return -1; 6926a02c806SStefan Hajnoczi } 6936a02c806SStefan Hajnoczi 6946a02c806SStefan Hajnoczi slisten = qemu_socket(AF_VSOCK, SOCK_STREAM, 0); 6956a02c806SStefan Hajnoczi if (slisten < 0) { 6966a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to create socket"); 6976a02c806SStefan Hajnoczi return -1; 6986a02c806SStefan Hajnoczi } 6996a02c806SStefan Hajnoczi 7006a02c806SStefan Hajnoczi if (bind(slisten, (const struct sockaddr *)&svm, sizeof(svm)) != 0) { 7016a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to bind socket"); 7026a02c806SStefan Hajnoczi closesocket(slisten); 7036a02c806SStefan Hajnoczi return -1; 7046a02c806SStefan Hajnoczi } 7056a02c806SStefan Hajnoczi 7066a02c806SStefan Hajnoczi if (listen(slisten, 1) != 0) { 7076a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to listen on socket"); 7086a02c806SStefan Hajnoczi closesocket(slisten); 7096a02c806SStefan Hajnoczi return -1; 7106a02c806SStefan Hajnoczi } 7116a02c806SStefan Hajnoczi return slisten; 7126a02c806SStefan Hajnoczi } 7136a02c806SStefan Hajnoczi 7144db5c619SMarkus Armbruster static int vsock_parse(VsockSocketAddress *addr, const char *str, 7154db5c619SMarkus Armbruster Error **errp) 7166a02c806SStefan Hajnoczi { 7176a02c806SStefan Hajnoczi char cid[33]; 7186a02c806SStefan Hajnoczi char port[33]; 7196a02c806SStefan Hajnoczi int n; 7206a02c806SStefan Hajnoczi 7216a02c806SStefan Hajnoczi if (sscanf(str, "%32[^:]:%32[^,]%n", cid, port, &n) != 2) { 7226a02c806SStefan Hajnoczi error_setg(errp, "error parsing address '%s'", str); 7234db5c619SMarkus Armbruster return -1; 7246a02c806SStefan Hajnoczi } 7256a02c806SStefan Hajnoczi if (str[n] != '\0') { 7266a02c806SStefan Hajnoczi error_setg(errp, "trailing characters in address '%s'", str); 7274db5c619SMarkus Armbruster return -1; 7286a02c806SStefan Hajnoczi } 7296a02c806SStefan Hajnoczi 7306a02c806SStefan Hajnoczi addr->cid = g_strdup(cid); 7316a02c806SStefan Hajnoczi addr->port = g_strdup(port); 7324db5c619SMarkus Armbruster return 0; 7336a02c806SStefan Hajnoczi } 7346a02c806SStefan Hajnoczi #else 7356a02c806SStefan Hajnoczi static void vsock_unsupported(Error **errp) 7366a02c806SStefan Hajnoczi { 7376a02c806SStefan Hajnoczi error_setg(errp, "socket family AF_VSOCK unsupported"); 7386a02c806SStefan Hajnoczi } 7396a02c806SStefan Hajnoczi 740b2587932SCao jin static int vsock_connect_saddr(VsockSocketAddress *vaddr, Error **errp) 7416a02c806SStefan Hajnoczi { 7426a02c806SStefan Hajnoczi vsock_unsupported(errp); 7436a02c806SStefan Hajnoczi return -1; 7446a02c806SStefan Hajnoczi } 7456a02c806SStefan Hajnoczi 7466a02c806SStefan Hajnoczi static int vsock_listen_saddr(VsockSocketAddress *vaddr, 7476a02c806SStefan Hajnoczi Error **errp) 7486a02c806SStefan Hajnoczi { 7496a02c806SStefan Hajnoczi vsock_unsupported(errp); 7506a02c806SStefan Hajnoczi return -1; 7516a02c806SStefan Hajnoczi } 7526a02c806SStefan Hajnoczi 7534db5c619SMarkus Armbruster static int vsock_parse(VsockSocketAddress *addr, const char *str, 7544db5c619SMarkus Armbruster Error **errp) 7556a02c806SStefan Hajnoczi { 7566a02c806SStefan Hajnoczi vsock_unsupported(errp); 7574db5c619SMarkus Armbruster return -1; 7586a02c806SStefan Hajnoczi } 7596a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 7606a02c806SStefan Hajnoczi 761baacf047SPaolo Bonzini #ifndef _WIN32 762baacf047SPaolo Bonzini 7631856835dSDaniel P. Berrange static int unix_listen_saddr(UnixSocketAddress *saddr, 7641856835dSDaniel P. Berrange bool update_addr, 7651856835dSDaniel P. Berrange Error **errp) 766baacf047SPaolo Bonzini { 767baacf047SPaolo Bonzini struct sockaddr_un un; 768baacf047SPaolo Bonzini int sock, fd; 769ad9579aaSDaniel P. Berrange char *pathbuf = NULL; 770ad9579aaSDaniel P. Berrange const char *path; 771baacf047SPaolo Bonzini 772baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 773baacf047SPaolo Bonzini if (sock < 0) { 774b658c53dSPaolo Bonzini error_setg_errno(errp, errno, "Failed to create Unix socket"); 775baacf047SPaolo Bonzini return -1; 776baacf047SPaolo Bonzini } 777baacf047SPaolo Bonzini 778ad9579aaSDaniel P. Berrange if (saddr->path && saddr->path[0]) { 779ad9579aaSDaniel P. Berrange path = saddr->path; 780baacf047SPaolo Bonzini } else { 781b658c53dSPaolo Bonzini const char *tmpdir = getenv("TMPDIR"); 782b658c53dSPaolo Bonzini tmpdir = tmpdir ? tmpdir : "/tmp"; 783ad9579aaSDaniel P. Berrange path = pathbuf = g_strdup_printf("%s/qemu-socket-XXXXXX", tmpdir); 784ad9579aaSDaniel P. Berrange } 785ad9579aaSDaniel P. Berrange 786ad9579aaSDaniel P. Berrange if (strlen(path) > sizeof(un.sun_path)) { 787ad9579aaSDaniel P. Berrange error_setg(errp, "UNIX socket path '%s' is too long", path); 788ad9579aaSDaniel P. Berrange error_append_hint(errp, "Path must be less than %zu bytes\n", 789ad9579aaSDaniel P. Berrange sizeof(un.sun_path)); 790b658c53dSPaolo Bonzini goto err; 791b658c53dSPaolo Bonzini } 792b658c53dSPaolo Bonzini 793ad9579aaSDaniel P. Berrange if (pathbuf != NULL) { 794baacf047SPaolo Bonzini /* 795baacf047SPaolo Bonzini * This dummy fd usage silences the mktemp() unsecure warning. 796baacf047SPaolo Bonzini * Using mkstemp() doesn't make things more secure here 797baacf047SPaolo Bonzini * though. bind() complains about existing files, so we have 798baacf047SPaolo Bonzini * to unlink first and thus re-open the race window. The 799baacf047SPaolo Bonzini * worst case possible is bind() failing, i.e. a DoS attack. 800baacf047SPaolo Bonzini */ 801ad9579aaSDaniel P. Berrange fd = mkstemp(pathbuf); 802b658c53dSPaolo Bonzini if (fd < 0) { 803b658c53dSPaolo Bonzini error_setg_errno(errp, errno, 804ad9579aaSDaniel P. Berrange "Failed to make a temporary socket %s", pathbuf); 805b658c53dSPaolo Bonzini goto err; 806b658c53dSPaolo Bonzini } 807b658c53dSPaolo Bonzini close(fd); 808baacf047SPaolo Bonzini } 809baacf047SPaolo Bonzini 810ad9579aaSDaniel P. Berrange if (unlink(path) < 0 && errno != ENOENT) { 8110ef705a2SCole Robinson error_setg_errno(errp, errno, 812ad9579aaSDaniel P. Berrange "Failed to unlink socket %s", path); 8130ef705a2SCole Robinson goto err; 8140ef705a2SCole Robinson } 815ad9579aaSDaniel P. Berrange 816ad9579aaSDaniel P. Berrange memset(&un, 0, sizeof(un)); 817ad9579aaSDaniel P. Berrange un.sun_family = AF_UNIX; 818ad9579aaSDaniel P. Berrange strncpy(un.sun_path, path, sizeof(un.sun_path)); 819ad9579aaSDaniel P. Berrange 820baacf047SPaolo Bonzini if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) { 82156382bd5SDaniel P. Berrange error_setg_errno(errp, errno, "Failed to bind socket to %s", path); 822baacf047SPaolo Bonzini goto err; 823baacf047SPaolo Bonzini } 824baacf047SPaolo Bonzini if (listen(sock, 1) < 0) { 825235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 826baacf047SPaolo Bonzini goto err; 827baacf047SPaolo Bonzini } 828baacf047SPaolo Bonzini 829ad9579aaSDaniel P. Berrange if (update_addr && pathbuf) { 830ad9579aaSDaniel P. Berrange g_free(saddr->path); 831ad9579aaSDaniel P. Berrange saddr->path = pathbuf; 832ad9579aaSDaniel P. Berrange } else { 833ad9579aaSDaniel P. Berrange g_free(pathbuf); 834ad9579aaSDaniel P. Berrange } 835baacf047SPaolo Bonzini return sock; 836baacf047SPaolo Bonzini 837baacf047SPaolo Bonzini err: 838ad9579aaSDaniel P. Berrange g_free(pathbuf); 839baacf047SPaolo Bonzini closesocket(sock); 840baacf047SPaolo Bonzini return -1; 841baacf047SPaolo Bonzini } 842baacf047SPaolo Bonzini 843b2587932SCao jin static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp) 844baacf047SPaolo Bonzini { 845baacf047SPaolo Bonzini struct sockaddr_un un; 846baacf047SPaolo Bonzini int sock, rc; 847baacf047SPaolo Bonzini 8482942e420SDaniel P. Berrange if (saddr->path == NULL) { 849312fd5f2SMarkus Armbruster error_setg(errp, "unix connect: no path specified"); 850baacf047SPaolo Bonzini return -1; 851baacf047SPaolo Bonzini } 852baacf047SPaolo Bonzini 853baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 854baacf047SPaolo Bonzini if (sock < 0) { 855235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 856baacf047SPaolo Bonzini return -1; 857baacf047SPaolo Bonzini } 858baacf047SPaolo Bonzini 859ad9579aaSDaniel P. Berrange if (strlen(saddr->path) > sizeof(un.sun_path)) { 860ad9579aaSDaniel P. Berrange error_setg(errp, "UNIX socket path '%s' is too long", saddr->path); 861ad9579aaSDaniel P. Berrange error_append_hint(errp, "Path must be less than %zu bytes\n", 862ad9579aaSDaniel P. Berrange sizeof(un.sun_path)); 863ad9579aaSDaniel P. Berrange goto err; 864ad9579aaSDaniel P. Berrange } 865ad9579aaSDaniel P. Berrange 866baacf047SPaolo Bonzini memset(&un, 0, sizeof(un)); 867baacf047SPaolo Bonzini un.sun_family = AF_UNIX; 868ad9579aaSDaniel P. Berrange strncpy(un.sun_path, saddr->path, sizeof(un.sun_path)); 869baacf047SPaolo Bonzini 870baacf047SPaolo Bonzini /* connect to peer */ 871baacf047SPaolo Bonzini do { 872baacf047SPaolo Bonzini rc = 0; 873baacf047SPaolo Bonzini if (connect(sock, (struct sockaddr *) &un, sizeof(un)) < 0) { 874b16a44e1SDaniel P. Berrange rc = -errno; 875baacf047SPaolo Bonzini } 876baacf047SPaolo Bonzini } while (rc == -EINTR); 877baacf047SPaolo Bonzini 878baacf047SPaolo Bonzini if (rc < 0) { 879ad9579aaSDaniel P. Berrange error_setg_errno(errp, -rc, "Failed to connect socket %s", 880ad9579aaSDaniel P. Berrange saddr->path); 881ad9579aaSDaniel P. Berrange goto err; 882baacf047SPaolo Bonzini } 883baacf047SPaolo Bonzini 884baacf047SPaolo Bonzini return sock; 885ad9579aaSDaniel P. Berrange 886ad9579aaSDaniel P. Berrange err: 887ad9579aaSDaniel P. Berrange close(sock); 888ad9579aaSDaniel P. Berrange return -1; 889baacf047SPaolo Bonzini } 890baacf047SPaolo Bonzini 891baacf047SPaolo Bonzini #else 892baacf047SPaolo Bonzini 8931856835dSDaniel P. Berrange static int unix_listen_saddr(UnixSocketAddress *saddr, 8941856835dSDaniel P. Berrange bool update_addr, 8951856835dSDaniel P. Berrange Error **errp) 896baacf047SPaolo Bonzini { 897baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 898baacf047SPaolo Bonzini errno = ENOTSUP; 899baacf047SPaolo Bonzini return -1; 900baacf047SPaolo Bonzini } 901baacf047SPaolo Bonzini 902b2587932SCao jin static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp) 903baacf047SPaolo Bonzini { 904baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 905baacf047SPaolo Bonzini errno = ENOTSUP; 906baacf047SPaolo Bonzini return -1; 907baacf047SPaolo Bonzini } 908baacf047SPaolo Bonzini #endif 909baacf047SPaolo Bonzini 910baacf047SPaolo Bonzini /* compatibility wrapper */ 911baacf047SPaolo Bonzini int unix_listen(const char *str, char *ostr, int olen, Error **errp) 912baacf047SPaolo Bonzini { 913baacf047SPaolo Bonzini char *path, *optstr; 914baacf047SPaolo Bonzini int sock, len; 9151856835dSDaniel P. Berrange UnixSocketAddress *saddr; 916baacf047SPaolo Bonzini 9171856835dSDaniel P. Berrange saddr = g_new0(UnixSocketAddress, 1); 918baacf047SPaolo Bonzini 919baacf047SPaolo Bonzini optstr = strchr(str, ','); 920baacf047SPaolo Bonzini if (optstr) { 921baacf047SPaolo Bonzini len = optstr - str; 922baacf047SPaolo Bonzini if (len) { 923baacf047SPaolo Bonzini path = g_malloc(len+1); 924baacf047SPaolo Bonzini snprintf(path, len+1, "%.*s", len, str); 9251856835dSDaniel P. Berrange saddr->path = path; 926baacf047SPaolo Bonzini } 927baacf047SPaolo Bonzini } else { 9281856835dSDaniel P. Berrange saddr->path = g_strdup(str); 929baacf047SPaolo Bonzini } 930baacf047SPaolo Bonzini 9311856835dSDaniel P. Berrange sock = unix_listen_saddr(saddr, true, errp); 932baacf047SPaolo Bonzini 93326015051SCao jin if (sock != -1 && ostr) { 9341856835dSDaniel P. Berrange snprintf(ostr, olen, "%s%s", saddr->path, optstr ? optstr : ""); 93526015051SCao jin } 93626015051SCao jin 9371856835dSDaniel P. Berrange qapi_free_UnixSocketAddress(saddr); 938baacf047SPaolo Bonzini return sock; 939baacf047SPaolo Bonzini } 940baacf047SPaolo Bonzini 941baacf047SPaolo Bonzini int unix_connect(const char *path, Error **errp) 942baacf047SPaolo Bonzini { 9432942e420SDaniel P. Berrange UnixSocketAddress *saddr; 944baacf047SPaolo Bonzini int sock; 945baacf047SPaolo Bonzini 9462942e420SDaniel P. Berrange saddr = g_new0(UnixSocketAddress, 1); 9472942e420SDaniel P. Berrange saddr->path = g_strdup(path); 948b2587932SCao jin sock = unix_connect_saddr(saddr, errp); 9492942e420SDaniel P. Berrange qapi_free_UnixSocketAddress(saddr); 950baacf047SPaolo Bonzini return sock; 951baacf047SPaolo Bonzini } 952baacf047SPaolo Bonzini 953baacf047SPaolo Bonzini 954bd269ebcSMarkus Armbruster SocketAddress *socket_parse(const char *str, Error **errp) 955baacf047SPaolo Bonzini { 956bd269ebcSMarkus Armbruster SocketAddress *addr; 957baacf047SPaolo Bonzini 958bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 959baacf047SPaolo Bonzini if (strstart(str, "unix:", NULL)) { 960baacf047SPaolo Bonzini if (str[5] == '\0') { 961312fd5f2SMarkus Armbruster error_setg(errp, "invalid Unix socket address"); 962baacf047SPaolo Bonzini goto fail; 963baacf047SPaolo Bonzini } else { 964bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 965bd269ebcSMarkus Armbruster addr->u.q_unix.path = g_strdup(str + 5); 966baacf047SPaolo Bonzini } 967baacf047SPaolo Bonzini } else if (strstart(str, "fd:", NULL)) { 968baacf047SPaolo Bonzini if (str[3] == '\0') { 969312fd5f2SMarkus Armbruster error_setg(errp, "invalid file descriptor address"); 970baacf047SPaolo Bonzini goto fail; 971baacf047SPaolo Bonzini } else { 972bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_FD; 973bd269ebcSMarkus Armbruster addr->u.fd.str = g_strdup(str + 3); 974baacf047SPaolo Bonzini } 9756a02c806SStefan Hajnoczi } else if (strstart(str, "vsock:", NULL)) { 976bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 977bd269ebcSMarkus Armbruster if (vsock_parse(&addr->u.vsock, str + strlen("vsock:"), errp)) { 9786a02c806SStefan Hajnoczi goto fail; 9796a02c806SStefan Hajnoczi } 980baacf047SPaolo Bonzini } else { 981bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 982bd269ebcSMarkus Armbruster if (inet_parse(&addr->u.inet, str, errp)) { 983baacf047SPaolo Bonzini goto fail; 984baacf047SPaolo Bonzini } 985baacf047SPaolo Bonzini } 986baacf047SPaolo Bonzini return addr; 987baacf047SPaolo Bonzini 988baacf047SPaolo Bonzini fail: 989bd269ebcSMarkus Armbruster qapi_free_SocketAddress(addr); 990baacf047SPaolo Bonzini return NULL; 991baacf047SPaolo Bonzini } 992baacf047SPaolo Bonzini 993b2587932SCao jin int socket_connect(SocketAddress *addr, Error **errp) 994baacf047SPaolo Bonzini { 995baacf047SPaolo Bonzini int fd; 996baacf047SPaolo Bonzini 9972d32addaSEric Blake switch (addr->type) { 998bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 999b2587932SCao jin fd = inet_connect_saddr(&addr->u.inet, errp); 1000baacf047SPaolo Bonzini break; 1001baacf047SPaolo Bonzini 1002bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_UNIX: 1003b2587932SCao jin fd = unix_connect_saddr(&addr->u.q_unix, errp); 1004baacf047SPaolo Bonzini break; 1005baacf047SPaolo Bonzini 1006bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_FD: 1007bd269ebcSMarkus Armbruster fd = monitor_get_fd(cur_mon, addr->u.fd.str, errp); 1008baacf047SPaolo Bonzini break; 1009baacf047SPaolo Bonzini 1010bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_VSOCK: 1011b2587932SCao jin fd = vsock_connect_saddr(&addr->u.vsock, errp); 10126a02c806SStefan Hajnoczi break; 10136a02c806SStefan Hajnoczi 1014baacf047SPaolo Bonzini default: 1015baacf047SPaolo Bonzini abort(); 1016baacf047SPaolo Bonzini } 1017baacf047SPaolo Bonzini return fd; 1018baacf047SPaolo Bonzini } 1019baacf047SPaolo Bonzini 1020bd269ebcSMarkus Armbruster int socket_listen(SocketAddress *addr, Error **errp) 1021baacf047SPaolo Bonzini { 1022baacf047SPaolo Bonzini int fd; 1023baacf047SPaolo Bonzini 10242d32addaSEric Blake switch (addr->type) { 1025bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1026bd269ebcSMarkus Armbruster fd = inet_listen_saddr(&addr->u.inet, 0, false, errp); 1027baacf047SPaolo Bonzini break; 1028baacf047SPaolo Bonzini 1029bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_UNIX: 1030bd269ebcSMarkus Armbruster fd = unix_listen_saddr(&addr->u.q_unix, false, errp); 1031baacf047SPaolo Bonzini break; 1032baacf047SPaolo Bonzini 1033bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_FD: 1034bd269ebcSMarkus Armbruster fd = monitor_get_fd(cur_mon, addr->u.fd.str, errp); 1035baacf047SPaolo Bonzini break; 1036baacf047SPaolo Bonzini 1037bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_VSOCK: 1038bd269ebcSMarkus Armbruster fd = vsock_listen_saddr(&addr->u.vsock, errp); 10396a02c806SStefan Hajnoczi break; 10406a02c806SStefan Hajnoczi 1041baacf047SPaolo Bonzini default: 1042baacf047SPaolo Bonzini abort(); 1043baacf047SPaolo Bonzini } 1044baacf047SPaolo Bonzini return fd; 1045baacf047SPaolo Bonzini } 1046baacf047SPaolo Bonzini 104774b6ce43SMarc-André Lureau void socket_listen_cleanup(int fd, Error **errp) 104874b6ce43SMarc-André Lureau { 1049bd269ebcSMarkus Armbruster SocketAddress *addr; 105074b6ce43SMarc-André Lureau 105174b6ce43SMarc-André Lureau addr = socket_local_address(fd, errp); 105274b6ce43SMarc-André Lureau 1053bd269ebcSMarkus Armbruster if (addr->type == SOCKET_ADDRESS_TYPE_UNIX 1054bd269ebcSMarkus Armbruster && addr->u.q_unix.path) { 1055bd269ebcSMarkus Armbruster if (unlink(addr->u.q_unix.path) < 0 && errno != ENOENT) { 105674b6ce43SMarc-André Lureau error_setg_errno(errp, errno, 105774b6ce43SMarc-André Lureau "Failed to unlink socket %s", 1058bd269ebcSMarkus Armbruster addr->u.q_unix.path); 105974b6ce43SMarc-André Lureau } 106074b6ce43SMarc-André Lureau } 106174b6ce43SMarc-André Lureau 1062bd269ebcSMarkus Armbruster qapi_free_SocketAddress(addr); 106374b6ce43SMarc-André Lureau } 106474b6ce43SMarc-André Lureau 1065bd269ebcSMarkus Armbruster int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp) 10663ecc059dSGerd Hoffmann { 10673ecc059dSGerd Hoffmann int fd; 10683ecc059dSGerd Hoffmann 1069ca0b64e5SMarkus Armbruster /* 1070bd269ebcSMarkus Armbruster * TODO SOCKET_ADDRESS_TYPE_FD when fd is AF_INET or AF_INET6 1071ca0b64e5SMarkus Armbruster * (although other address families can do SOCK_DGRAM, too) 1072ca0b64e5SMarkus Armbruster */ 10732d32addaSEric Blake switch (remote->type) { 1074bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1075bd269ebcSMarkus Armbruster fd = inet_dgram_saddr(&remote->u.inet, 1076bd269ebcSMarkus Armbruster local ? &local->u.inet : NULL, errp); 10773ecc059dSGerd Hoffmann break; 10783ecc059dSGerd Hoffmann 10793ecc059dSGerd Hoffmann default: 10803ecc059dSGerd Hoffmann error_setg(errp, "socket type unsupported for datagram"); 10817a5b6af1SGerd Hoffmann fd = -1; 10823ecc059dSGerd Hoffmann } 10833ecc059dSGerd Hoffmann return fd; 10843ecc059dSGerd Hoffmann } 108517c55decSDaniel P. Berrange 108617c55decSDaniel P. Berrange 1087bd269ebcSMarkus Armbruster static SocketAddress * 108817c55decSDaniel P. Berrange socket_sockaddr_to_address_inet(struct sockaddr_storage *sa, 108917c55decSDaniel P. Berrange socklen_t salen, 109017c55decSDaniel P. Berrange Error **errp) 109117c55decSDaniel P. Berrange { 109217c55decSDaniel P. Berrange char host[NI_MAXHOST]; 109317c55decSDaniel P. Berrange char serv[NI_MAXSERV]; 1094bd269ebcSMarkus Armbruster SocketAddress *addr; 10950399293eSEric Blake InetSocketAddress *inet; 109617c55decSDaniel P. Berrange int ret; 109717c55decSDaniel P. Berrange 109817c55decSDaniel P. Berrange ret = getnameinfo((struct sockaddr *)sa, salen, 109917c55decSDaniel P. Berrange host, sizeof(host), 110017c55decSDaniel P. Berrange serv, sizeof(serv), 110117c55decSDaniel P. Berrange NI_NUMERICHOST | NI_NUMERICSERV); 110217c55decSDaniel P. Berrange if (ret != 0) { 110317c55decSDaniel P. Berrange error_setg(errp, "Cannot format numeric socket address: %s", 110417c55decSDaniel P. Berrange gai_strerror(ret)); 110517c55decSDaniel P. Berrange return NULL; 110617c55decSDaniel P. Berrange } 110717c55decSDaniel P. Berrange 1108bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1109bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1110bd269ebcSMarkus Armbruster inet = &addr->u.inet; 11110399293eSEric Blake inet->host = g_strdup(host); 11120399293eSEric Blake inet->port = g_strdup(serv); 111317c55decSDaniel P. Berrange if (sa->ss_family == AF_INET) { 11140399293eSEric Blake inet->has_ipv4 = inet->ipv4 = true; 111517c55decSDaniel P. Berrange } else { 11160399293eSEric Blake inet->has_ipv6 = inet->ipv6 = true; 111717c55decSDaniel P. Berrange } 111817c55decSDaniel P. Berrange 111917c55decSDaniel P. Berrange return addr; 112017c55decSDaniel P. Berrange } 112117c55decSDaniel P. Berrange 112217c55decSDaniel P. Berrange 112317c55decSDaniel P. Berrange #ifndef WIN32 1124bd269ebcSMarkus Armbruster static SocketAddress * 112517c55decSDaniel P. Berrange socket_sockaddr_to_address_unix(struct sockaddr_storage *sa, 112617c55decSDaniel P. Berrange socklen_t salen, 112717c55decSDaniel P. Berrange Error **errp) 112817c55decSDaniel P. Berrange { 1129bd269ebcSMarkus Armbruster SocketAddress *addr; 113017c55decSDaniel P. Berrange struct sockaddr_un *su = (struct sockaddr_un *)sa; 113117c55decSDaniel P. Berrange 1132bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1133bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 113417c55decSDaniel P. Berrange if (su->sun_path[0]) { 1135bd269ebcSMarkus Armbruster addr->u.q_unix.path = g_strndup(su->sun_path, sizeof(su->sun_path)); 113617c55decSDaniel P. Berrange } 113717c55decSDaniel P. Berrange 113817c55decSDaniel P. Berrange return addr; 113917c55decSDaniel P. Berrange } 114017c55decSDaniel P. Berrange #endif /* WIN32 */ 114117c55decSDaniel P. Berrange 11426a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 1143bd269ebcSMarkus Armbruster static SocketAddress * 11446a02c806SStefan Hajnoczi socket_sockaddr_to_address_vsock(struct sockaddr_storage *sa, 11456a02c806SStefan Hajnoczi socklen_t salen, 11466a02c806SStefan Hajnoczi Error **errp) 11476a02c806SStefan Hajnoczi { 1148bd269ebcSMarkus Armbruster SocketAddress *addr; 11496a02c806SStefan Hajnoczi VsockSocketAddress *vaddr; 11506a02c806SStefan Hajnoczi struct sockaddr_vm *svm = (struct sockaddr_vm *)sa; 11516a02c806SStefan Hajnoczi 1152bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1153bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1154bd269ebcSMarkus Armbruster vaddr = &addr->u.vsock; 11556a02c806SStefan Hajnoczi vaddr->cid = g_strdup_printf("%u", svm->svm_cid); 11566a02c806SStefan Hajnoczi vaddr->port = g_strdup_printf("%u", svm->svm_port); 11576a02c806SStefan Hajnoczi 11586a02c806SStefan Hajnoczi return addr; 11596a02c806SStefan Hajnoczi } 11606a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 11616a02c806SStefan Hajnoczi 1162bd269ebcSMarkus Armbruster SocketAddress * 116317c55decSDaniel P. Berrange socket_sockaddr_to_address(struct sockaddr_storage *sa, 116417c55decSDaniel P. Berrange socklen_t salen, 116517c55decSDaniel P. Berrange Error **errp) 116617c55decSDaniel P. Berrange { 116717c55decSDaniel P. Berrange switch (sa->ss_family) { 116817c55decSDaniel P. Berrange case AF_INET: 116917c55decSDaniel P. Berrange case AF_INET6: 117017c55decSDaniel P. Berrange return socket_sockaddr_to_address_inet(sa, salen, errp); 117117c55decSDaniel P. Berrange 117217c55decSDaniel P. Berrange #ifndef WIN32 117317c55decSDaniel P. Berrange case AF_UNIX: 117417c55decSDaniel P. Berrange return socket_sockaddr_to_address_unix(sa, salen, errp); 117517c55decSDaniel P. Berrange #endif /* WIN32 */ 117617c55decSDaniel P. Berrange 11776a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 11786a02c806SStefan Hajnoczi case AF_VSOCK: 11796a02c806SStefan Hajnoczi return socket_sockaddr_to_address_vsock(sa, salen, errp); 11806a02c806SStefan Hajnoczi #endif 11816a02c806SStefan Hajnoczi 118217c55decSDaniel P. Berrange default: 118317c55decSDaniel P. Berrange error_setg(errp, "socket family %d unsupported", 118417c55decSDaniel P. Berrange sa->ss_family); 118517c55decSDaniel P. Berrange return NULL; 118617c55decSDaniel P. Berrange } 118717c55decSDaniel P. Berrange return 0; 118817c55decSDaniel P. Berrange } 118917c55decSDaniel P. Berrange 119017c55decSDaniel P. Berrange 1191bd269ebcSMarkus Armbruster SocketAddress *socket_local_address(int fd, Error **errp) 119217c55decSDaniel P. Berrange { 119317c55decSDaniel P. Berrange struct sockaddr_storage ss; 119417c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 119517c55decSDaniel P. Berrange 119617c55decSDaniel P. Berrange if (getsockname(fd, (struct sockaddr *)&ss, &sslen) < 0) { 1197b16a44e1SDaniel P. Berrange error_setg_errno(errp, errno, "%s", 119817c55decSDaniel P. Berrange "Unable to query local socket address"); 119917c55decSDaniel P. Berrange return NULL; 120017c55decSDaniel P. Berrange } 120117c55decSDaniel P. Berrange 120217c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 120317c55decSDaniel P. Berrange } 120417c55decSDaniel P. Berrange 120517c55decSDaniel P. Berrange 1206bd269ebcSMarkus Armbruster SocketAddress *socket_remote_address(int fd, Error **errp) 120717c55decSDaniel P. Berrange { 120817c55decSDaniel P. Berrange struct sockaddr_storage ss; 120917c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 121017c55decSDaniel P. Berrange 121117c55decSDaniel P. Berrange if (getpeername(fd, (struct sockaddr *)&ss, &sslen) < 0) { 1212b16a44e1SDaniel P. Berrange error_setg_errno(errp, errno, "%s", 121317c55decSDaniel P. Berrange "Unable to query remote socket address"); 121417c55decSDaniel P. Berrange return NULL; 121517c55decSDaniel P. Berrange } 121617c55decSDaniel P. Berrange 121717c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 121817c55decSDaniel P. Berrange } 12192a8e21c7SDaniel P. Berrange 1220216411b8SMarkus Armbruster 1221bd269ebcSMarkus Armbruster SocketAddress *socket_address_flatten(SocketAddressLegacy *addr_legacy) 1222bd269ebcSMarkus Armbruster { 1223fc0f0059SMarkus Armbruster SocketAddress *addr; 1224bd269ebcSMarkus Armbruster 1225bd269ebcSMarkus Armbruster if (!addr_legacy) { 1226bd269ebcSMarkus Armbruster return NULL; 1227bd269ebcSMarkus Armbruster } 1228bd269ebcSMarkus Armbruster 1229fc0f0059SMarkus Armbruster addr = g_new(SocketAddress, 1); 1230fc0f0059SMarkus Armbruster 1231bd269ebcSMarkus Armbruster switch (addr_legacy->type) { 1232bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_INET: 1233bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1234bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(InetSocketAddress, &addr->u.inet, 1235bd269ebcSMarkus Armbruster addr_legacy->u.inet.data); 1236bd269ebcSMarkus Armbruster break; 1237bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_UNIX: 1238bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 1239bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(UnixSocketAddress, &addr->u.q_unix, 1240bd269ebcSMarkus Armbruster addr_legacy->u.q_unix.data); 1241bd269ebcSMarkus Armbruster break; 1242bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_VSOCK: 1243bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1244bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(VsockSocketAddress, &addr->u.vsock, 1245bd269ebcSMarkus Armbruster addr_legacy->u.vsock.data); 1246bd269ebcSMarkus Armbruster break; 1247bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_FD: 1248bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_FD; 1249bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(String, &addr->u.fd, addr_legacy->u.fd.data); 1250bd269ebcSMarkus Armbruster break; 1251bd269ebcSMarkus Armbruster default: 1252bd269ebcSMarkus Armbruster abort(); 1253bd269ebcSMarkus Armbruster } 1254bd269ebcSMarkus Armbruster 1255bd269ebcSMarkus Armbruster return addr; 1256bd269ebcSMarkus Armbruster } 1257