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 1521856835dSDaniel P. Berrange static int inet_listen_saddr(InetSocketAddress *saddr, 1531856835dSDaniel P. Berrange int port_offset, 1541856835dSDaniel P. Berrange bool update_addr, 1551856835dSDaniel P. Berrange Error **errp) 156baacf047SPaolo Bonzini { 157baacf047SPaolo Bonzini struct addrinfo ai,*res,*e; 158baacf047SPaolo Bonzini char port[33]; 159baacf047SPaolo Bonzini char uaddr[INET6_ADDRSTRLEN+1]; 160baacf047SPaolo Bonzini char uport[33]; 1611856835dSDaniel P. Berrange int slisten, rc, port_min, port_max, p; 1621856835dSDaniel P. Berrange Error *err = NULL; 163baacf047SPaolo Bonzini 164baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 1653de3d698SWolfgang Bumiller ai.ai_flags = AI_PASSIVE; 1666979a813SDaniel P. Berrange if (saddr->has_numeric && saddr->numeric) { 1676979a813SDaniel P. Berrange ai.ai_flags |= AI_NUMERICHOST | AI_NUMERICSERV; 1686979a813SDaniel P. Berrange } 1691856835dSDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(saddr, &err); 170baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 171baacf047SPaolo Bonzini 1721856835dSDaniel P. Berrange if (err) { 1731856835dSDaniel P. Berrange error_propagate(errp, err); 1741856835dSDaniel P. Berrange return -1; 1751856835dSDaniel P. Berrange } 1761856835dSDaniel P. Berrange 1771856835dSDaniel P. Berrange if (saddr->host == NULL) { 1780983f5e6SDaniel P. Berrange error_setg(errp, "host not specified"); 179baacf047SPaolo Bonzini return -1; 180baacf047SPaolo Bonzini } 1811856835dSDaniel P. Berrange if (saddr->port != NULL) { 1821856835dSDaniel P. Berrange pstrcpy(port, sizeof(port), saddr->port); 1830983f5e6SDaniel P. Berrange } else { 1840983f5e6SDaniel P. Berrange port[0] = '\0'; 1850983f5e6SDaniel P. Berrange } 186baacf047SPaolo Bonzini 187baacf047SPaolo Bonzini /* lookup */ 1888bc89127SGerd Hoffmann if (port_offset) { 1898bc89127SGerd Hoffmann unsigned long long baseport; 1900983f5e6SDaniel P. Berrange if (strlen(port) == 0) { 1910983f5e6SDaniel P. Berrange error_setg(errp, "port not specified"); 1920983f5e6SDaniel P. Berrange return -1; 1930983f5e6SDaniel P. Berrange } 1948bc89127SGerd Hoffmann if (parse_uint_full(port, &baseport, 10) < 0) { 1958bc89127SGerd Hoffmann error_setg(errp, "can't convert to a number: %s", port); 1968bc89127SGerd Hoffmann return -1; 1978bc89127SGerd Hoffmann } 1988bc89127SGerd Hoffmann if (baseport > 65535 || 1998bc89127SGerd Hoffmann baseport + port_offset > 65535) { 2008bc89127SGerd Hoffmann error_setg(errp, "port %s out of range", port); 2018bc89127SGerd Hoffmann return -1; 2028bc89127SGerd Hoffmann } 2038bc89127SGerd Hoffmann snprintf(port, sizeof(port), "%d", (int)baseport + port_offset); 2048bc89127SGerd Hoffmann } 2051856835dSDaniel P. Berrange rc = getaddrinfo(strlen(saddr->host) ? saddr->host : NULL, 2060983f5e6SDaniel P. Berrange strlen(port) ? port : NULL, &ai, &res); 207baacf047SPaolo Bonzini if (rc != 0) { 2081856835dSDaniel P. Berrange error_setg(errp, "address resolution failed for %s:%s: %s", 2091856835dSDaniel P. Berrange saddr->host, port, gai_strerror(rc)); 210baacf047SPaolo Bonzini return -1; 211baacf047SPaolo Bonzini } 212baacf047SPaolo Bonzini 213baacf047SPaolo Bonzini /* create socket + bind */ 214baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 215baacf047SPaolo Bonzini getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen, 216baacf047SPaolo Bonzini uaddr,INET6_ADDRSTRLEN,uport,32, 217baacf047SPaolo Bonzini NI_NUMERICHOST | NI_NUMERICSERV); 218baacf047SPaolo Bonzini slisten = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol); 219baacf047SPaolo Bonzini if (slisten < 0) { 220baacf047SPaolo Bonzini if (!e->ai_next) { 221235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 222baacf047SPaolo Bonzini } 223baacf047SPaolo Bonzini continue; 224baacf047SPaolo Bonzini } 225baacf047SPaolo Bonzini 22604fd1c78SSebastian Ottlik socket_set_fast_reuse(slisten); 227baacf047SPaolo Bonzini 228baacf047SPaolo Bonzini port_min = inet_getport(e); 2291856835dSDaniel P. Berrange port_max = saddr->has_to ? saddr->to + port_offset : port_min; 230baacf047SPaolo Bonzini for (p = port_min; p <= port_max; p++) { 2315e059be4SDaniel P. Berrange #ifdef IPV6_V6ONLY 23294bc0d19SDaniel P. Berrange /* 23394bc0d19SDaniel P. Berrange * Deals with first & last cases in matrix in comment 23494bc0d19SDaniel P. Berrange * for inet_ai_family_from_address(). 23594bc0d19SDaniel P. Berrange */ 23694bc0d19SDaniel P. Berrange int v6only = 23794bc0d19SDaniel P. Berrange ((!saddr->has_ipv4 && !saddr->has_ipv6) || 23894bc0d19SDaniel P. Berrange (saddr->has_ipv4 && saddr->ipv4 && 23994bc0d19SDaniel P. Berrange saddr->has_ipv6 && saddr->ipv6)) ? 0 : 1; 2405e059be4SDaniel P. Berrange #endif 241baacf047SPaolo Bonzini inet_setport(e, p); 2425e059be4SDaniel P. Berrange #ifdef IPV6_V6ONLY 2435e059be4SDaniel P. Berrange rebind: 2445e059be4SDaniel P. Berrange if (e->ai_family == PF_INET6) { 2455e059be4SDaniel P. Berrange qemu_setsockopt(slisten, IPPROTO_IPV6, IPV6_V6ONLY, &v6only, 2465e059be4SDaniel P. Berrange sizeof(v6only)); 2475e059be4SDaniel P. Berrange } 2485e059be4SDaniel P. Berrange #endif 249baacf047SPaolo Bonzini if (bind(slisten, e->ai_addr, e->ai_addrlen) == 0) { 250baacf047SPaolo Bonzini goto listen; 251baacf047SPaolo Bonzini } 2525e059be4SDaniel P. Berrange 2535e059be4SDaniel P. Berrange #ifdef IPV6_V6ONLY 2545e059be4SDaniel P. Berrange /* If we got EADDRINUSE from an IPv6 bind & V6ONLY is unset, 2555e059be4SDaniel P. Berrange * it could be that the IPv4 port is already claimed, so retry 2565e059be4SDaniel P. Berrange * with V6ONLY set 2575e059be4SDaniel P. Berrange */ 2585e059be4SDaniel P. Berrange if (e->ai_family == PF_INET6 && errno == EADDRINUSE && !v6only) { 2595e059be4SDaniel P. Berrange v6only = 1; 2605e059be4SDaniel P. Berrange goto rebind; 2615e059be4SDaniel P. Berrange } 2625e059be4SDaniel P. Berrange #endif 2635e059be4SDaniel P. Berrange 264baacf047SPaolo Bonzini if (p == port_max) { 265baacf047SPaolo Bonzini if (!e->ai_next) { 266235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 267baacf047SPaolo Bonzini } 268baacf047SPaolo Bonzini } 269baacf047SPaolo Bonzini } 270baacf047SPaolo Bonzini closesocket(slisten); 271baacf047SPaolo Bonzini } 272baacf047SPaolo Bonzini freeaddrinfo(res); 273baacf047SPaolo Bonzini return -1; 274baacf047SPaolo Bonzini 275baacf047SPaolo Bonzini listen: 276baacf047SPaolo Bonzini if (listen(slisten,1) != 0) { 277235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 278baacf047SPaolo Bonzini closesocket(slisten); 279baacf047SPaolo Bonzini freeaddrinfo(res); 280baacf047SPaolo Bonzini return -1; 281baacf047SPaolo Bonzini } 2821856835dSDaniel P. Berrange if (update_addr) { 2831856835dSDaniel P. Berrange g_free(saddr->host); 2841856835dSDaniel P. Berrange saddr->host = g_strdup(uaddr); 2851856835dSDaniel P. Berrange g_free(saddr->port); 2861856835dSDaniel P. Berrange saddr->port = g_strdup_printf("%d", 2871856835dSDaniel P. Berrange inet_getport(e) - port_offset); 2881856835dSDaniel P. Berrange saddr->has_ipv6 = saddr->ipv6 = e->ai_family == PF_INET6; 2891856835dSDaniel P. Berrange saddr->has_ipv4 = saddr->ipv4 = e->ai_family != PF_INET6; 2901856835dSDaniel P. Berrange } 291baacf047SPaolo Bonzini freeaddrinfo(res); 292baacf047SPaolo Bonzini return slisten; 293baacf047SPaolo Bonzini } 294baacf047SPaolo Bonzini 295baacf047SPaolo Bonzini #ifdef _WIN32 296baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 297baacf047SPaolo Bonzini ((rc) == -EINPROGRESS || (rc) == -EWOULDBLOCK || (rc) == -WSAEALREADY) 298baacf047SPaolo Bonzini #else 299baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 300baacf047SPaolo Bonzini ((rc) == -EINPROGRESS) 301baacf047SPaolo Bonzini #endif 302baacf047SPaolo Bonzini 303*b2587932SCao jin static int inet_connect_addr(struct addrinfo *addr, Error **errp); 304baacf047SPaolo Bonzini 305*b2587932SCao jin static int inet_connect_addr(struct addrinfo *addr, Error **errp) 306baacf047SPaolo Bonzini { 307baacf047SPaolo Bonzini int sock, rc; 308baacf047SPaolo Bonzini 309baacf047SPaolo Bonzini sock = qemu_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol); 310baacf047SPaolo Bonzini if (sock < 0) { 311235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 312baacf047SPaolo Bonzini return -1; 313baacf047SPaolo Bonzini } 31404fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 315*b2587932SCao jin 316baacf047SPaolo Bonzini /* connect to peer */ 317baacf047SPaolo Bonzini do { 318baacf047SPaolo Bonzini rc = 0; 319baacf047SPaolo Bonzini if (connect(sock, addr->ai_addr, addr->ai_addrlen) < 0) { 320b16a44e1SDaniel P. Berrange rc = -errno; 321baacf047SPaolo Bonzini } 322baacf047SPaolo Bonzini } while (rc == -EINTR); 323baacf047SPaolo Bonzini 324*b2587932SCao jin if (rc < 0) { 325235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 326baacf047SPaolo Bonzini closesocket(sock); 327baacf047SPaolo Bonzini return -1; 328baacf047SPaolo Bonzini } 329*b2587932SCao jin 330baacf047SPaolo Bonzini return sock; 331baacf047SPaolo Bonzini } 332baacf047SPaolo Bonzini 3332942e420SDaniel P. Berrange static struct addrinfo *inet_parse_connect_saddr(InetSocketAddress *saddr, 3342942e420SDaniel P. Berrange Error **errp) 335baacf047SPaolo Bonzini { 336baacf047SPaolo Bonzini struct addrinfo ai, *res; 337baacf047SPaolo Bonzini int rc; 3382942e420SDaniel P. Berrange Error *err = NULL; 339340849a9SDaniel P. Berrange static int useV4Mapped = 1; 340baacf047SPaolo Bonzini 341baacf047SPaolo Bonzini memset(&ai, 0, sizeof(ai)); 342baacf047SPaolo Bonzini 343340849a9SDaniel P. Berrange ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG; 344340849a9SDaniel P. Berrange if (atomic_read(&useV4Mapped)) { 345340849a9SDaniel P. Berrange ai.ai_flags |= AI_V4MAPPED; 346340849a9SDaniel P. Berrange } 3472942e420SDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(saddr, &err); 348baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 349baacf047SPaolo Bonzini 3502942e420SDaniel P. Berrange if (err) { 3512942e420SDaniel P. Berrange error_propagate(errp, err); 3522942e420SDaniel P. Berrange return NULL; 3532942e420SDaniel P. Berrange } 3542942e420SDaniel P. Berrange 3552942e420SDaniel P. Berrange if (saddr->host == NULL || saddr->port == NULL) { 356baacf047SPaolo Bonzini error_setg(errp, "host and/or port not specified"); 357baacf047SPaolo Bonzini return NULL; 358baacf047SPaolo Bonzini } 359baacf047SPaolo Bonzini 360baacf047SPaolo Bonzini /* lookup */ 3612942e420SDaniel P. Berrange rc = getaddrinfo(saddr->host, saddr->port, &ai, &res); 362340849a9SDaniel P. Berrange 363340849a9SDaniel P. Berrange /* At least FreeBSD and OS-X 10.6 declare AI_V4MAPPED but 364340849a9SDaniel P. Berrange * then don't implement it in their getaddrinfo(). Detect 365340849a9SDaniel P. Berrange * this and retry without the flag since that's preferrable 366340849a9SDaniel P. Berrange * to a fatal error 367340849a9SDaniel P. Berrange */ 368340849a9SDaniel P. Berrange if (rc == EAI_BADFLAGS && 369340849a9SDaniel P. Berrange (ai.ai_flags & AI_V4MAPPED)) { 370340849a9SDaniel P. Berrange atomic_set(&useV4Mapped, 0); 371340849a9SDaniel P. Berrange ai.ai_flags &= ~AI_V4MAPPED; 372340849a9SDaniel P. Berrange rc = getaddrinfo(saddr->host, saddr->port, &ai, &res); 373340849a9SDaniel P. Berrange } 374baacf047SPaolo Bonzini if (rc != 0) { 3752942e420SDaniel P. Berrange error_setg(errp, "address resolution failed for %s:%s: %s", 3762942e420SDaniel P. Berrange saddr->host, saddr->port, gai_strerror(rc)); 377baacf047SPaolo Bonzini return NULL; 378baacf047SPaolo Bonzini } 379baacf047SPaolo Bonzini return res; 380baacf047SPaolo Bonzini } 381baacf047SPaolo Bonzini 382baacf047SPaolo Bonzini /** 383baacf047SPaolo Bonzini * Create a socket and connect it to an address. 384baacf047SPaolo Bonzini * 3852942e420SDaniel P. Berrange * @saddr: Inet socket address specification 386baacf047SPaolo Bonzini * @errp: set on error 387baacf047SPaolo Bonzini * 388baacf047SPaolo Bonzini * Returns: -1 on error, file descriptor on success. 389baacf047SPaolo Bonzini */ 390*b2587932SCao jin int inet_connect_saddr(InetSocketAddress *saddr, Error **errp) 391baacf047SPaolo Bonzini { 3923f9286b7SMarkus Armbruster Error *local_err = NULL; 393baacf047SPaolo Bonzini struct addrinfo *res, *e; 394baacf047SPaolo Bonzini int sock = -1; 395baacf047SPaolo Bonzini 3962942e420SDaniel P. Berrange res = inet_parse_connect_saddr(saddr, errp); 397baacf047SPaolo Bonzini if (!res) { 398baacf047SPaolo Bonzini return -1; 399baacf047SPaolo Bonzini } 400baacf047SPaolo Bonzini 401baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 4023f9286b7SMarkus Armbruster error_free(local_err); 4033f9286b7SMarkus Armbruster local_err = NULL; 404*b2587932SCao jin sock = inet_connect_addr(e, &local_err); 4053f9286b7SMarkus Armbruster if (sock >= 0) { 406baacf047SPaolo Bonzini break; 407baacf047SPaolo Bonzini } 408baacf047SPaolo Bonzini } 4093f9286b7SMarkus Armbruster 4103f9286b7SMarkus Armbruster if (sock < 0) { 4113f9286b7SMarkus Armbruster error_propagate(errp, local_err); 4123f9286b7SMarkus Armbruster } 413*b2587932SCao jin 414baacf047SPaolo Bonzini freeaddrinfo(res); 415baacf047SPaolo Bonzini return sock; 416baacf047SPaolo Bonzini } 417baacf047SPaolo Bonzini 4188b39910eSDaniel P. Berrange static int inet_dgram_saddr(InetSocketAddress *sraddr, 4198b39910eSDaniel P. Berrange InetSocketAddress *sladdr, 4208b39910eSDaniel P. Berrange Error **errp) 421baacf047SPaolo Bonzini { 422baacf047SPaolo Bonzini struct addrinfo ai, *peer = NULL, *local = NULL; 423baacf047SPaolo Bonzini const char *addr; 424baacf047SPaolo Bonzini const char *port; 425baacf047SPaolo Bonzini int sock = -1, rc; 4268b39910eSDaniel P. Berrange Error *err = NULL; 427baacf047SPaolo Bonzini 428baacf047SPaolo Bonzini /* lookup peer addr */ 429baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 4303de3d698SWolfgang Bumiller ai.ai_flags = AI_CANONNAME | AI_V4MAPPED | AI_ADDRCONFIG; 4318b39910eSDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(sraddr, &err); 432baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 433baacf047SPaolo Bonzini 4348b39910eSDaniel P. Berrange if (err) { 4358b39910eSDaniel P. Berrange error_propagate(errp, err); 43658c652c0SPaolo Bonzini goto err; 4378b39910eSDaniel P. Berrange } 4388b39910eSDaniel P. Berrange 4398b39910eSDaniel P. Berrange addr = sraddr->host; 4408b39910eSDaniel P. Berrange port = sraddr->port; 441baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 442baacf047SPaolo Bonzini addr = "localhost"; 443baacf047SPaolo Bonzini } 444baacf047SPaolo Bonzini if (port == NULL || strlen(port) == 0) { 445baacf047SPaolo Bonzini error_setg(errp, "remote port not specified"); 44658c652c0SPaolo Bonzini goto err; 447baacf047SPaolo Bonzini } 448baacf047SPaolo Bonzini 4499cd1883cSCao jin if ((rc = getaddrinfo(addr, port, &ai, &peer)) != 0) { 450baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 451baacf047SPaolo Bonzini gai_strerror(rc)); 45258c652c0SPaolo Bonzini goto err; 453baacf047SPaolo Bonzini } 454baacf047SPaolo Bonzini 455baacf047SPaolo Bonzini /* lookup local addr */ 456baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 457baacf047SPaolo Bonzini ai.ai_flags = AI_PASSIVE; 458baacf047SPaolo Bonzini ai.ai_family = peer->ai_family; 459baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 460baacf047SPaolo Bonzini 4618b39910eSDaniel P. Berrange if (sladdr) { 4628b39910eSDaniel P. Berrange addr = sladdr->host; 4638b39910eSDaniel P. Berrange port = sladdr->port; 464baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 465baacf047SPaolo Bonzini addr = NULL; 466baacf047SPaolo Bonzini } 4678b39910eSDaniel P. Berrange if (!port || strlen(port) == 0) { 468baacf047SPaolo Bonzini port = "0"; 4698b39910eSDaniel P. Berrange } 4708b39910eSDaniel P. Berrange } else { 4718b39910eSDaniel P. Berrange addr = NULL; 4728b39910eSDaniel P. Berrange port = "0"; 4738b39910eSDaniel P. Berrange } 474baacf047SPaolo Bonzini 4759cd1883cSCao jin if ((rc = getaddrinfo(addr, port, &ai, &local)) != 0) { 476baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 477baacf047SPaolo Bonzini gai_strerror(rc)); 478baacf047SPaolo Bonzini goto err; 479baacf047SPaolo Bonzini } 480baacf047SPaolo Bonzini 481baacf047SPaolo Bonzini /* create socket */ 482baacf047SPaolo Bonzini sock = qemu_socket(peer->ai_family, peer->ai_socktype, peer->ai_protocol); 483baacf047SPaolo Bonzini if (sock < 0) { 484235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 485baacf047SPaolo Bonzini goto err; 486baacf047SPaolo Bonzini } 48704fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 488baacf047SPaolo Bonzini 489baacf047SPaolo Bonzini /* bind socket */ 490baacf047SPaolo Bonzini if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) { 491235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 492baacf047SPaolo Bonzini goto err; 493baacf047SPaolo Bonzini } 494baacf047SPaolo Bonzini 495baacf047SPaolo Bonzini /* connect to peer */ 496baacf047SPaolo Bonzini if (connect(sock,peer->ai_addr,peer->ai_addrlen) < 0) { 497235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 498baacf047SPaolo Bonzini goto err; 499baacf047SPaolo Bonzini } 500baacf047SPaolo Bonzini 501baacf047SPaolo Bonzini freeaddrinfo(local); 502baacf047SPaolo Bonzini freeaddrinfo(peer); 503baacf047SPaolo Bonzini return sock; 504baacf047SPaolo Bonzini 505baacf047SPaolo Bonzini err: 50626015051SCao jin if (sock != -1) { 507baacf047SPaolo Bonzini closesocket(sock); 50826015051SCao jin } 50926015051SCao jin if (local) { 510baacf047SPaolo Bonzini freeaddrinfo(local); 51126015051SCao jin } 51226015051SCao jin if (peer) { 513baacf047SPaolo Bonzini freeaddrinfo(peer); 51426015051SCao jin } 51526015051SCao jin 516baacf047SPaolo Bonzini return -1; 517baacf047SPaolo Bonzini } 518baacf047SPaolo Bonzini 519baacf047SPaolo Bonzini /* compatibility wrapper */ 5200785bd7aSMarkus Armbruster int inet_parse(InetSocketAddress *addr, const char *str, Error **errp) 521baacf047SPaolo Bonzini { 522baacf047SPaolo Bonzini const char *optstr, *h; 52355a10996SKevin Wolf char host[65]; 524baacf047SPaolo Bonzini char port[33]; 525baacf047SPaolo Bonzini int to; 526baacf047SPaolo Bonzini int pos; 527baacf047SPaolo Bonzini 5280785bd7aSMarkus Armbruster memset(addr, 0, sizeof(*addr)); 529baacf047SPaolo Bonzini 530baacf047SPaolo Bonzini /* parse address */ 531baacf047SPaolo Bonzini if (str[0] == ':') { 532baacf047SPaolo Bonzini /* no host given */ 533baacf047SPaolo Bonzini host[0] = '\0'; 5349cd1883cSCao jin if (sscanf(str, ":%32[^,]%n", port, &pos) != 1) { 535baacf047SPaolo Bonzini error_setg(errp, "error parsing port in address '%s'", str); 5360785bd7aSMarkus Armbruster return -1; 537baacf047SPaolo Bonzini } 538baacf047SPaolo Bonzini } else if (str[0] == '[') { 539baacf047SPaolo Bonzini /* IPv6 addr */ 5409cd1883cSCao jin if (sscanf(str, "[%64[^]]]:%32[^,]%n", host, port, &pos) != 2) { 541baacf047SPaolo Bonzini error_setg(errp, "error parsing IPv6 address '%s'", str); 5420785bd7aSMarkus Armbruster return -1; 543baacf047SPaolo Bonzini } 544baacf047SPaolo Bonzini } else { 545391b7b97SJán Tomko /* hostname or IPv4 addr */ 5469cd1883cSCao jin if (sscanf(str, "%64[^:]:%32[^,]%n", host, port, &pos) != 2) { 547baacf047SPaolo Bonzini error_setg(errp, "error parsing address '%s'", str); 5480785bd7aSMarkus Armbruster return -1; 549baacf047SPaolo Bonzini } 550baacf047SPaolo Bonzini } 551baacf047SPaolo Bonzini 552baacf047SPaolo Bonzini addr->host = g_strdup(host); 553baacf047SPaolo Bonzini addr->port = g_strdup(port); 554baacf047SPaolo Bonzini 555baacf047SPaolo Bonzini /* parse options */ 556baacf047SPaolo Bonzini optstr = str + pos; 557baacf047SPaolo Bonzini h = strstr(optstr, ",to="); 558baacf047SPaolo Bonzini if (h) { 559baacf047SPaolo Bonzini h += 4; 560baacf047SPaolo Bonzini if (sscanf(h, "%d%n", &to, &pos) != 1 || 561baacf047SPaolo Bonzini (h[pos] != '\0' && h[pos] != ',')) { 562baacf047SPaolo Bonzini error_setg(errp, "error parsing to= argument"); 5630785bd7aSMarkus Armbruster return -1; 564baacf047SPaolo Bonzini } 565baacf047SPaolo Bonzini addr->has_to = true; 566baacf047SPaolo Bonzini addr->to = to; 567baacf047SPaolo Bonzini } 568baacf047SPaolo Bonzini if (strstr(optstr, ",ipv4")) { 569baacf047SPaolo Bonzini addr->ipv4 = addr->has_ipv4 = true; 570baacf047SPaolo Bonzini } 571baacf047SPaolo Bonzini if (strstr(optstr, ",ipv6")) { 572baacf047SPaolo Bonzini addr->ipv6 = addr->has_ipv6 = true; 573baacf047SPaolo Bonzini } 5740785bd7aSMarkus Armbruster return 0; 575baacf047SPaolo Bonzini } 576baacf047SPaolo Bonzini 577baacf047SPaolo Bonzini 578baacf047SPaolo Bonzini /** 579baacf047SPaolo Bonzini * Create a blocking socket and connect it to an address. 580baacf047SPaolo Bonzini * 581baacf047SPaolo Bonzini * @str: address string 582baacf047SPaolo Bonzini * @errp: set in case of an error 583baacf047SPaolo Bonzini * 584baacf047SPaolo Bonzini * Returns -1 in case of error, file descriptor on success 585baacf047SPaolo Bonzini **/ 586baacf047SPaolo Bonzini int inet_connect(const char *str, Error **errp) 587baacf047SPaolo Bonzini { 588baacf047SPaolo Bonzini int sock = -1; 5890785bd7aSMarkus Armbruster InetSocketAddress *addr = g_new(InetSocketAddress, 1); 590baacf047SPaolo Bonzini 5910785bd7aSMarkus Armbruster if (!inet_parse(addr, str, errp)) { 592*b2587932SCao jin sock = inet_connect_saddr(addr, errp); 593baacf047SPaolo Bonzini } 5940785bd7aSMarkus Armbruster qapi_free_InetSocketAddress(addr); 595baacf047SPaolo Bonzini return sock; 596baacf047SPaolo Bonzini } 597baacf047SPaolo Bonzini 5986a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 5996a02c806SStefan Hajnoczi static bool vsock_parse_vaddr_to_sockaddr(const VsockSocketAddress *vaddr, 6006a02c806SStefan Hajnoczi struct sockaddr_vm *svm, 6016a02c806SStefan Hajnoczi Error **errp) 6026a02c806SStefan Hajnoczi { 6036a02c806SStefan Hajnoczi unsigned long long val; 6046a02c806SStefan Hajnoczi 6056a02c806SStefan Hajnoczi memset(svm, 0, sizeof(*svm)); 6066a02c806SStefan Hajnoczi svm->svm_family = AF_VSOCK; 6076a02c806SStefan Hajnoczi 6086a02c806SStefan Hajnoczi if (parse_uint_full(vaddr->cid, &val, 10) < 0 || 6096a02c806SStefan Hajnoczi val > UINT32_MAX) { 6106a02c806SStefan Hajnoczi error_setg(errp, "Failed to parse cid '%s'", vaddr->cid); 6116a02c806SStefan Hajnoczi return false; 6126a02c806SStefan Hajnoczi } 6136a02c806SStefan Hajnoczi svm->svm_cid = val; 6146a02c806SStefan Hajnoczi 6156a02c806SStefan Hajnoczi if (parse_uint_full(vaddr->port, &val, 10) < 0 || 6166a02c806SStefan Hajnoczi val > UINT32_MAX) { 6176a02c806SStefan Hajnoczi error_setg(errp, "Failed to parse port '%s'", vaddr->port); 6186a02c806SStefan Hajnoczi return false; 6196a02c806SStefan Hajnoczi } 6206a02c806SStefan Hajnoczi svm->svm_port = val; 6216a02c806SStefan Hajnoczi 6226a02c806SStefan Hajnoczi return true; 6236a02c806SStefan Hajnoczi } 6246a02c806SStefan Hajnoczi 625*b2587932SCao jin static int vsock_connect_addr(const struct sockaddr_vm *svm, Error **errp) 6266a02c806SStefan Hajnoczi { 6276a02c806SStefan Hajnoczi int sock, rc; 6286a02c806SStefan Hajnoczi 6296a02c806SStefan Hajnoczi sock = qemu_socket(AF_VSOCK, SOCK_STREAM, 0); 6306a02c806SStefan Hajnoczi if (sock < 0) { 6316a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to create socket"); 6326a02c806SStefan Hajnoczi return -1; 6336a02c806SStefan Hajnoczi } 634*b2587932SCao jin 6356a02c806SStefan Hajnoczi /* connect to peer */ 6366a02c806SStefan Hajnoczi do { 6376a02c806SStefan Hajnoczi rc = 0; 6386a02c806SStefan Hajnoczi if (connect(sock, (const struct sockaddr *)svm, sizeof(*svm)) < 0) { 6396a02c806SStefan Hajnoczi rc = -errno; 6406a02c806SStefan Hajnoczi } 6416a02c806SStefan Hajnoczi } while (rc == -EINTR); 6426a02c806SStefan Hajnoczi 643*b2587932SCao jin if (rc < 0) { 6446a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to connect socket"); 6456a02c806SStefan Hajnoczi closesocket(sock); 6466a02c806SStefan Hajnoczi return -1; 6476a02c806SStefan Hajnoczi } 648*b2587932SCao jin 6496a02c806SStefan Hajnoczi return sock; 6506a02c806SStefan Hajnoczi } 6516a02c806SStefan Hajnoczi 652*b2587932SCao jin static int vsock_connect_saddr(VsockSocketAddress *vaddr, Error **errp) 6536a02c806SStefan Hajnoczi { 6546a02c806SStefan Hajnoczi struct sockaddr_vm svm; 6556a02c806SStefan Hajnoczi int sock = -1; 6566a02c806SStefan Hajnoczi 6576a02c806SStefan Hajnoczi if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) { 6586a02c806SStefan Hajnoczi return -1; 6596a02c806SStefan Hajnoczi } 6606a02c806SStefan Hajnoczi 661*b2587932SCao jin sock = vsock_connect_addr(&svm, errp); 6626a02c806SStefan Hajnoczi 6636a02c806SStefan Hajnoczi return sock; 6646a02c806SStefan Hajnoczi } 6656a02c806SStefan Hajnoczi 6666a02c806SStefan Hajnoczi static int vsock_listen_saddr(VsockSocketAddress *vaddr, 6676a02c806SStefan Hajnoczi Error **errp) 6686a02c806SStefan Hajnoczi { 6696a02c806SStefan Hajnoczi struct sockaddr_vm svm; 6706a02c806SStefan Hajnoczi int slisten; 6716a02c806SStefan Hajnoczi 6726a02c806SStefan Hajnoczi if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) { 6736a02c806SStefan Hajnoczi return -1; 6746a02c806SStefan Hajnoczi } 6756a02c806SStefan Hajnoczi 6766a02c806SStefan Hajnoczi slisten = qemu_socket(AF_VSOCK, SOCK_STREAM, 0); 6776a02c806SStefan Hajnoczi if (slisten < 0) { 6786a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to create socket"); 6796a02c806SStefan Hajnoczi return -1; 6806a02c806SStefan Hajnoczi } 6816a02c806SStefan Hajnoczi 6826a02c806SStefan Hajnoczi if (bind(slisten, (const struct sockaddr *)&svm, sizeof(svm)) != 0) { 6836a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to bind socket"); 6846a02c806SStefan Hajnoczi closesocket(slisten); 6856a02c806SStefan Hajnoczi return -1; 6866a02c806SStefan Hajnoczi } 6876a02c806SStefan Hajnoczi 6886a02c806SStefan Hajnoczi if (listen(slisten, 1) != 0) { 6896a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to listen on socket"); 6906a02c806SStefan Hajnoczi closesocket(slisten); 6916a02c806SStefan Hajnoczi return -1; 6926a02c806SStefan Hajnoczi } 6936a02c806SStefan Hajnoczi return slisten; 6946a02c806SStefan Hajnoczi } 6956a02c806SStefan Hajnoczi 6964db5c619SMarkus Armbruster static int vsock_parse(VsockSocketAddress *addr, const char *str, 6974db5c619SMarkus Armbruster Error **errp) 6986a02c806SStefan Hajnoczi { 6996a02c806SStefan Hajnoczi char cid[33]; 7006a02c806SStefan Hajnoczi char port[33]; 7016a02c806SStefan Hajnoczi int n; 7026a02c806SStefan Hajnoczi 7036a02c806SStefan Hajnoczi if (sscanf(str, "%32[^:]:%32[^,]%n", cid, port, &n) != 2) { 7046a02c806SStefan Hajnoczi error_setg(errp, "error parsing address '%s'", str); 7054db5c619SMarkus Armbruster return -1; 7066a02c806SStefan Hajnoczi } 7076a02c806SStefan Hajnoczi if (str[n] != '\0') { 7086a02c806SStefan Hajnoczi error_setg(errp, "trailing characters in address '%s'", str); 7094db5c619SMarkus Armbruster return -1; 7106a02c806SStefan Hajnoczi } 7116a02c806SStefan Hajnoczi 7126a02c806SStefan Hajnoczi addr->cid = g_strdup(cid); 7136a02c806SStefan Hajnoczi addr->port = g_strdup(port); 7144db5c619SMarkus Armbruster return 0; 7156a02c806SStefan Hajnoczi } 7166a02c806SStefan Hajnoczi #else 7176a02c806SStefan Hajnoczi static void vsock_unsupported(Error **errp) 7186a02c806SStefan Hajnoczi { 7196a02c806SStefan Hajnoczi error_setg(errp, "socket family AF_VSOCK unsupported"); 7206a02c806SStefan Hajnoczi } 7216a02c806SStefan Hajnoczi 722*b2587932SCao jin static int vsock_connect_saddr(VsockSocketAddress *vaddr, Error **errp) 7236a02c806SStefan Hajnoczi { 7246a02c806SStefan Hajnoczi vsock_unsupported(errp); 7256a02c806SStefan Hajnoczi return -1; 7266a02c806SStefan Hajnoczi } 7276a02c806SStefan Hajnoczi 7286a02c806SStefan Hajnoczi static int vsock_listen_saddr(VsockSocketAddress *vaddr, 7296a02c806SStefan Hajnoczi Error **errp) 7306a02c806SStefan Hajnoczi { 7316a02c806SStefan Hajnoczi vsock_unsupported(errp); 7326a02c806SStefan Hajnoczi return -1; 7336a02c806SStefan Hajnoczi } 7346a02c806SStefan Hajnoczi 7354db5c619SMarkus Armbruster static int vsock_parse(VsockSocketAddress *addr, const char *str, 7364db5c619SMarkus Armbruster Error **errp) 7376a02c806SStefan Hajnoczi { 7386a02c806SStefan Hajnoczi vsock_unsupported(errp); 7394db5c619SMarkus Armbruster return -1; 7406a02c806SStefan Hajnoczi } 7416a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 7426a02c806SStefan Hajnoczi 743baacf047SPaolo Bonzini #ifndef _WIN32 744baacf047SPaolo Bonzini 7451856835dSDaniel P. Berrange static int unix_listen_saddr(UnixSocketAddress *saddr, 7461856835dSDaniel P. Berrange bool update_addr, 7471856835dSDaniel P. Berrange Error **errp) 748baacf047SPaolo Bonzini { 749baacf047SPaolo Bonzini struct sockaddr_un un; 750baacf047SPaolo Bonzini int sock, fd; 751ad9579aaSDaniel P. Berrange char *pathbuf = NULL; 752ad9579aaSDaniel P. Berrange const char *path; 753baacf047SPaolo Bonzini 754baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 755baacf047SPaolo Bonzini if (sock < 0) { 756b658c53dSPaolo Bonzini error_setg_errno(errp, errno, "Failed to create Unix socket"); 757baacf047SPaolo Bonzini return -1; 758baacf047SPaolo Bonzini } 759baacf047SPaolo Bonzini 760ad9579aaSDaniel P. Berrange if (saddr->path && saddr->path[0]) { 761ad9579aaSDaniel P. Berrange path = saddr->path; 762baacf047SPaolo Bonzini } else { 763b658c53dSPaolo Bonzini const char *tmpdir = getenv("TMPDIR"); 764b658c53dSPaolo Bonzini tmpdir = tmpdir ? tmpdir : "/tmp"; 765ad9579aaSDaniel P. Berrange path = pathbuf = g_strdup_printf("%s/qemu-socket-XXXXXX", tmpdir); 766ad9579aaSDaniel P. Berrange } 767ad9579aaSDaniel P. Berrange 768ad9579aaSDaniel P. Berrange if (strlen(path) > sizeof(un.sun_path)) { 769ad9579aaSDaniel P. Berrange error_setg(errp, "UNIX socket path '%s' is too long", path); 770ad9579aaSDaniel P. Berrange error_append_hint(errp, "Path must be less than %zu bytes\n", 771ad9579aaSDaniel P. Berrange sizeof(un.sun_path)); 772b658c53dSPaolo Bonzini goto err; 773b658c53dSPaolo Bonzini } 774b658c53dSPaolo Bonzini 775ad9579aaSDaniel P. Berrange if (pathbuf != NULL) { 776baacf047SPaolo Bonzini /* 777baacf047SPaolo Bonzini * This dummy fd usage silences the mktemp() unsecure warning. 778baacf047SPaolo Bonzini * Using mkstemp() doesn't make things more secure here 779baacf047SPaolo Bonzini * though. bind() complains about existing files, so we have 780baacf047SPaolo Bonzini * to unlink first and thus re-open the race window. The 781baacf047SPaolo Bonzini * worst case possible is bind() failing, i.e. a DoS attack. 782baacf047SPaolo Bonzini */ 783ad9579aaSDaniel P. Berrange fd = mkstemp(pathbuf); 784b658c53dSPaolo Bonzini if (fd < 0) { 785b658c53dSPaolo Bonzini error_setg_errno(errp, errno, 786ad9579aaSDaniel P. Berrange "Failed to make a temporary socket %s", pathbuf); 787b658c53dSPaolo Bonzini goto err; 788b658c53dSPaolo Bonzini } 789b658c53dSPaolo Bonzini close(fd); 790baacf047SPaolo Bonzini } 791baacf047SPaolo Bonzini 792ad9579aaSDaniel P. Berrange if (unlink(path) < 0 && errno != ENOENT) { 7930ef705a2SCole Robinson error_setg_errno(errp, errno, 794ad9579aaSDaniel P. Berrange "Failed to unlink socket %s", path); 7950ef705a2SCole Robinson goto err; 7960ef705a2SCole Robinson } 797ad9579aaSDaniel P. Berrange 798ad9579aaSDaniel P. Berrange memset(&un, 0, sizeof(un)); 799ad9579aaSDaniel P. Berrange un.sun_family = AF_UNIX; 800ad9579aaSDaniel P. Berrange strncpy(un.sun_path, path, sizeof(un.sun_path)); 801ad9579aaSDaniel P. Berrange 802baacf047SPaolo Bonzini if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) { 80356382bd5SDaniel P. Berrange error_setg_errno(errp, errno, "Failed to bind socket to %s", path); 804baacf047SPaolo Bonzini goto err; 805baacf047SPaolo Bonzini } 806baacf047SPaolo Bonzini if (listen(sock, 1) < 0) { 807235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 808baacf047SPaolo Bonzini goto err; 809baacf047SPaolo Bonzini } 810baacf047SPaolo Bonzini 811ad9579aaSDaniel P. Berrange if (update_addr && pathbuf) { 812ad9579aaSDaniel P. Berrange g_free(saddr->path); 813ad9579aaSDaniel P. Berrange saddr->path = pathbuf; 814ad9579aaSDaniel P. Berrange } else { 815ad9579aaSDaniel P. Berrange g_free(pathbuf); 816ad9579aaSDaniel P. Berrange } 817baacf047SPaolo Bonzini return sock; 818baacf047SPaolo Bonzini 819baacf047SPaolo Bonzini err: 820ad9579aaSDaniel P. Berrange g_free(pathbuf); 821baacf047SPaolo Bonzini closesocket(sock); 822baacf047SPaolo Bonzini return -1; 823baacf047SPaolo Bonzini } 824baacf047SPaolo Bonzini 825*b2587932SCao jin static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp) 826baacf047SPaolo Bonzini { 827baacf047SPaolo Bonzini struct sockaddr_un un; 828baacf047SPaolo Bonzini int sock, rc; 829baacf047SPaolo Bonzini 8302942e420SDaniel P. Berrange if (saddr->path == NULL) { 831312fd5f2SMarkus Armbruster error_setg(errp, "unix connect: no path specified"); 832baacf047SPaolo Bonzini return -1; 833baacf047SPaolo Bonzini } 834baacf047SPaolo Bonzini 835baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 836baacf047SPaolo Bonzini if (sock < 0) { 837235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 838baacf047SPaolo Bonzini return -1; 839baacf047SPaolo Bonzini } 840baacf047SPaolo Bonzini 841ad9579aaSDaniel P. Berrange if (strlen(saddr->path) > sizeof(un.sun_path)) { 842ad9579aaSDaniel P. Berrange error_setg(errp, "UNIX socket path '%s' is too long", saddr->path); 843ad9579aaSDaniel P. Berrange error_append_hint(errp, "Path must be less than %zu bytes\n", 844ad9579aaSDaniel P. Berrange sizeof(un.sun_path)); 845ad9579aaSDaniel P. Berrange goto err; 846ad9579aaSDaniel P. Berrange } 847ad9579aaSDaniel P. Berrange 848baacf047SPaolo Bonzini memset(&un, 0, sizeof(un)); 849baacf047SPaolo Bonzini un.sun_family = AF_UNIX; 850ad9579aaSDaniel P. Berrange strncpy(un.sun_path, saddr->path, sizeof(un.sun_path)); 851baacf047SPaolo Bonzini 852baacf047SPaolo Bonzini /* connect to peer */ 853baacf047SPaolo Bonzini do { 854baacf047SPaolo Bonzini rc = 0; 855baacf047SPaolo Bonzini if (connect(sock, (struct sockaddr *) &un, sizeof(un)) < 0) { 856b16a44e1SDaniel P. Berrange rc = -errno; 857baacf047SPaolo Bonzini } 858baacf047SPaolo Bonzini } while (rc == -EINTR); 859baacf047SPaolo Bonzini 860baacf047SPaolo Bonzini if (rc < 0) { 861ad9579aaSDaniel P. Berrange error_setg_errno(errp, -rc, "Failed to connect socket %s", 862ad9579aaSDaniel P. Berrange saddr->path); 863ad9579aaSDaniel P. Berrange goto err; 864baacf047SPaolo Bonzini } 865baacf047SPaolo Bonzini 866baacf047SPaolo Bonzini return sock; 867ad9579aaSDaniel P. Berrange 868ad9579aaSDaniel P. Berrange err: 869ad9579aaSDaniel P. Berrange close(sock); 870ad9579aaSDaniel P. Berrange return -1; 871baacf047SPaolo Bonzini } 872baacf047SPaolo Bonzini 873baacf047SPaolo Bonzini #else 874baacf047SPaolo Bonzini 8751856835dSDaniel P. Berrange static int unix_listen_saddr(UnixSocketAddress *saddr, 8761856835dSDaniel P. Berrange bool update_addr, 8771856835dSDaniel P. Berrange Error **errp) 878baacf047SPaolo Bonzini { 879baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 880baacf047SPaolo Bonzini errno = ENOTSUP; 881baacf047SPaolo Bonzini return -1; 882baacf047SPaolo Bonzini } 883baacf047SPaolo Bonzini 884*b2587932SCao jin static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp) 885baacf047SPaolo Bonzini { 886baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 887baacf047SPaolo Bonzini errno = ENOTSUP; 888baacf047SPaolo Bonzini return -1; 889baacf047SPaolo Bonzini } 890baacf047SPaolo Bonzini #endif 891baacf047SPaolo Bonzini 892baacf047SPaolo Bonzini /* compatibility wrapper */ 893baacf047SPaolo Bonzini int unix_listen(const char *str, char *ostr, int olen, Error **errp) 894baacf047SPaolo Bonzini { 895baacf047SPaolo Bonzini char *path, *optstr; 896baacf047SPaolo Bonzini int sock, len; 8971856835dSDaniel P. Berrange UnixSocketAddress *saddr; 898baacf047SPaolo Bonzini 8991856835dSDaniel P. Berrange saddr = g_new0(UnixSocketAddress, 1); 900baacf047SPaolo Bonzini 901baacf047SPaolo Bonzini optstr = strchr(str, ','); 902baacf047SPaolo Bonzini if (optstr) { 903baacf047SPaolo Bonzini len = optstr - str; 904baacf047SPaolo Bonzini if (len) { 905baacf047SPaolo Bonzini path = g_malloc(len+1); 906baacf047SPaolo Bonzini snprintf(path, len+1, "%.*s", len, str); 9071856835dSDaniel P. Berrange saddr->path = path; 908baacf047SPaolo Bonzini } 909baacf047SPaolo Bonzini } else { 9101856835dSDaniel P. Berrange saddr->path = g_strdup(str); 911baacf047SPaolo Bonzini } 912baacf047SPaolo Bonzini 9131856835dSDaniel P. Berrange sock = unix_listen_saddr(saddr, true, errp); 914baacf047SPaolo Bonzini 91526015051SCao jin if (sock != -1 && ostr) { 9161856835dSDaniel P. Berrange snprintf(ostr, olen, "%s%s", saddr->path, optstr ? optstr : ""); 91726015051SCao jin } 91826015051SCao jin 9191856835dSDaniel P. Berrange qapi_free_UnixSocketAddress(saddr); 920baacf047SPaolo Bonzini return sock; 921baacf047SPaolo Bonzini } 922baacf047SPaolo Bonzini 923baacf047SPaolo Bonzini int unix_connect(const char *path, Error **errp) 924baacf047SPaolo Bonzini { 9252942e420SDaniel P. Berrange UnixSocketAddress *saddr; 926baacf047SPaolo Bonzini int sock; 927baacf047SPaolo Bonzini 9282942e420SDaniel P. Berrange saddr = g_new0(UnixSocketAddress, 1); 9292942e420SDaniel P. Berrange saddr->path = g_strdup(path); 930*b2587932SCao jin sock = unix_connect_saddr(saddr, errp); 9312942e420SDaniel P. Berrange qapi_free_UnixSocketAddress(saddr); 932baacf047SPaolo Bonzini return sock; 933baacf047SPaolo Bonzini } 934baacf047SPaolo Bonzini 935baacf047SPaolo Bonzini 936bd269ebcSMarkus Armbruster SocketAddress *socket_parse(const char *str, Error **errp) 937baacf047SPaolo Bonzini { 938bd269ebcSMarkus Armbruster SocketAddress *addr; 939baacf047SPaolo Bonzini 940bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 941baacf047SPaolo Bonzini if (strstart(str, "unix:", NULL)) { 942baacf047SPaolo Bonzini if (str[5] == '\0') { 943312fd5f2SMarkus Armbruster error_setg(errp, "invalid Unix socket address"); 944baacf047SPaolo Bonzini goto fail; 945baacf047SPaolo Bonzini } else { 946bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 947bd269ebcSMarkus Armbruster addr->u.q_unix.path = g_strdup(str + 5); 948baacf047SPaolo Bonzini } 949baacf047SPaolo Bonzini } else if (strstart(str, "fd:", NULL)) { 950baacf047SPaolo Bonzini if (str[3] == '\0') { 951312fd5f2SMarkus Armbruster error_setg(errp, "invalid file descriptor address"); 952baacf047SPaolo Bonzini goto fail; 953baacf047SPaolo Bonzini } else { 954bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_FD; 955bd269ebcSMarkus Armbruster addr->u.fd.str = g_strdup(str + 3); 956baacf047SPaolo Bonzini } 9576a02c806SStefan Hajnoczi } else if (strstart(str, "vsock:", NULL)) { 958bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 959bd269ebcSMarkus Armbruster if (vsock_parse(&addr->u.vsock, str + strlen("vsock:"), errp)) { 9606a02c806SStefan Hajnoczi goto fail; 9616a02c806SStefan Hajnoczi } 962baacf047SPaolo Bonzini } else { 963bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 964bd269ebcSMarkus Armbruster if (inet_parse(&addr->u.inet, str, errp)) { 965baacf047SPaolo Bonzini goto fail; 966baacf047SPaolo Bonzini } 967baacf047SPaolo Bonzini } 968baacf047SPaolo Bonzini return addr; 969baacf047SPaolo Bonzini 970baacf047SPaolo Bonzini fail: 971bd269ebcSMarkus Armbruster qapi_free_SocketAddress(addr); 972baacf047SPaolo Bonzini return NULL; 973baacf047SPaolo Bonzini } 974baacf047SPaolo Bonzini 975*b2587932SCao jin int socket_connect(SocketAddress *addr, Error **errp) 976baacf047SPaolo Bonzini { 977baacf047SPaolo Bonzini int fd; 978baacf047SPaolo Bonzini 9792d32addaSEric Blake switch (addr->type) { 980bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 981*b2587932SCao jin fd = inet_connect_saddr(&addr->u.inet, errp); 982baacf047SPaolo Bonzini break; 983baacf047SPaolo Bonzini 984bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_UNIX: 985*b2587932SCao jin fd = unix_connect_saddr(&addr->u.q_unix, errp); 986baacf047SPaolo Bonzini break; 987baacf047SPaolo Bonzini 988bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_FD: 989bd269ebcSMarkus Armbruster fd = monitor_get_fd(cur_mon, addr->u.fd.str, errp); 990baacf047SPaolo Bonzini break; 991baacf047SPaolo Bonzini 992bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_VSOCK: 993*b2587932SCao jin fd = vsock_connect_saddr(&addr->u.vsock, errp); 9946a02c806SStefan Hajnoczi break; 9956a02c806SStefan Hajnoczi 996baacf047SPaolo Bonzini default: 997baacf047SPaolo Bonzini abort(); 998baacf047SPaolo Bonzini } 999baacf047SPaolo Bonzini return fd; 1000baacf047SPaolo Bonzini } 1001baacf047SPaolo Bonzini 1002bd269ebcSMarkus Armbruster int socket_listen(SocketAddress *addr, Error **errp) 1003baacf047SPaolo Bonzini { 1004baacf047SPaolo Bonzini int fd; 1005baacf047SPaolo Bonzini 10062d32addaSEric Blake switch (addr->type) { 1007bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1008bd269ebcSMarkus Armbruster fd = inet_listen_saddr(&addr->u.inet, 0, false, errp); 1009baacf047SPaolo Bonzini break; 1010baacf047SPaolo Bonzini 1011bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_UNIX: 1012bd269ebcSMarkus Armbruster fd = unix_listen_saddr(&addr->u.q_unix, false, errp); 1013baacf047SPaolo Bonzini break; 1014baacf047SPaolo Bonzini 1015bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_FD: 1016bd269ebcSMarkus Armbruster fd = monitor_get_fd(cur_mon, addr->u.fd.str, errp); 1017baacf047SPaolo Bonzini break; 1018baacf047SPaolo Bonzini 1019bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_VSOCK: 1020bd269ebcSMarkus Armbruster fd = vsock_listen_saddr(&addr->u.vsock, errp); 10216a02c806SStefan Hajnoczi break; 10226a02c806SStefan Hajnoczi 1023baacf047SPaolo Bonzini default: 1024baacf047SPaolo Bonzini abort(); 1025baacf047SPaolo Bonzini } 1026baacf047SPaolo Bonzini return fd; 1027baacf047SPaolo Bonzini } 1028baacf047SPaolo Bonzini 102974b6ce43SMarc-André Lureau void socket_listen_cleanup(int fd, Error **errp) 103074b6ce43SMarc-André Lureau { 1031bd269ebcSMarkus Armbruster SocketAddress *addr; 103274b6ce43SMarc-André Lureau 103374b6ce43SMarc-André Lureau addr = socket_local_address(fd, errp); 103474b6ce43SMarc-André Lureau 1035bd269ebcSMarkus Armbruster if (addr->type == SOCKET_ADDRESS_TYPE_UNIX 1036bd269ebcSMarkus Armbruster && addr->u.q_unix.path) { 1037bd269ebcSMarkus Armbruster if (unlink(addr->u.q_unix.path) < 0 && errno != ENOENT) { 103874b6ce43SMarc-André Lureau error_setg_errno(errp, errno, 103974b6ce43SMarc-André Lureau "Failed to unlink socket %s", 1040bd269ebcSMarkus Armbruster addr->u.q_unix.path); 104174b6ce43SMarc-André Lureau } 104274b6ce43SMarc-André Lureau } 104374b6ce43SMarc-André Lureau 1044bd269ebcSMarkus Armbruster qapi_free_SocketAddress(addr); 104574b6ce43SMarc-André Lureau } 104674b6ce43SMarc-André Lureau 1047bd269ebcSMarkus Armbruster int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp) 10483ecc059dSGerd Hoffmann { 10493ecc059dSGerd Hoffmann int fd; 10503ecc059dSGerd Hoffmann 1051ca0b64e5SMarkus Armbruster /* 1052bd269ebcSMarkus Armbruster * TODO SOCKET_ADDRESS_TYPE_FD when fd is AF_INET or AF_INET6 1053ca0b64e5SMarkus Armbruster * (although other address families can do SOCK_DGRAM, too) 1054ca0b64e5SMarkus Armbruster */ 10552d32addaSEric Blake switch (remote->type) { 1056bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1057bd269ebcSMarkus Armbruster fd = inet_dgram_saddr(&remote->u.inet, 1058bd269ebcSMarkus Armbruster local ? &local->u.inet : NULL, errp); 10593ecc059dSGerd Hoffmann break; 10603ecc059dSGerd Hoffmann 10613ecc059dSGerd Hoffmann default: 10623ecc059dSGerd Hoffmann error_setg(errp, "socket type unsupported for datagram"); 10637a5b6af1SGerd Hoffmann fd = -1; 10643ecc059dSGerd Hoffmann } 10653ecc059dSGerd Hoffmann return fd; 10663ecc059dSGerd Hoffmann } 106717c55decSDaniel P. Berrange 106817c55decSDaniel P. Berrange 1069bd269ebcSMarkus Armbruster static SocketAddress * 107017c55decSDaniel P. Berrange socket_sockaddr_to_address_inet(struct sockaddr_storage *sa, 107117c55decSDaniel P. Berrange socklen_t salen, 107217c55decSDaniel P. Berrange Error **errp) 107317c55decSDaniel P. Berrange { 107417c55decSDaniel P. Berrange char host[NI_MAXHOST]; 107517c55decSDaniel P. Berrange char serv[NI_MAXSERV]; 1076bd269ebcSMarkus Armbruster SocketAddress *addr; 10770399293eSEric Blake InetSocketAddress *inet; 107817c55decSDaniel P. Berrange int ret; 107917c55decSDaniel P. Berrange 108017c55decSDaniel P. Berrange ret = getnameinfo((struct sockaddr *)sa, salen, 108117c55decSDaniel P. Berrange host, sizeof(host), 108217c55decSDaniel P. Berrange serv, sizeof(serv), 108317c55decSDaniel P. Berrange NI_NUMERICHOST | NI_NUMERICSERV); 108417c55decSDaniel P. Berrange if (ret != 0) { 108517c55decSDaniel P. Berrange error_setg(errp, "Cannot format numeric socket address: %s", 108617c55decSDaniel P. Berrange gai_strerror(ret)); 108717c55decSDaniel P. Berrange return NULL; 108817c55decSDaniel P. Berrange } 108917c55decSDaniel P. Berrange 1090bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1091bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1092bd269ebcSMarkus Armbruster inet = &addr->u.inet; 10930399293eSEric Blake inet->host = g_strdup(host); 10940399293eSEric Blake inet->port = g_strdup(serv); 109517c55decSDaniel P. Berrange if (sa->ss_family == AF_INET) { 10960399293eSEric Blake inet->has_ipv4 = inet->ipv4 = true; 109717c55decSDaniel P. Berrange } else { 10980399293eSEric Blake inet->has_ipv6 = inet->ipv6 = true; 109917c55decSDaniel P. Berrange } 110017c55decSDaniel P. Berrange 110117c55decSDaniel P. Berrange return addr; 110217c55decSDaniel P. Berrange } 110317c55decSDaniel P. Berrange 110417c55decSDaniel P. Berrange 110517c55decSDaniel P. Berrange #ifndef WIN32 1106bd269ebcSMarkus Armbruster static SocketAddress * 110717c55decSDaniel P. Berrange socket_sockaddr_to_address_unix(struct sockaddr_storage *sa, 110817c55decSDaniel P. Berrange socklen_t salen, 110917c55decSDaniel P. Berrange Error **errp) 111017c55decSDaniel P. Berrange { 1111bd269ebcSMarkus Armbruster SocketAddress *addr; 111217c55decSDaniel P. Berrange struct sockaddr_un *su = (struct sockaddr_un *)sa; 111317c55decSDaniel P. Berrange 1114bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1115bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 111617c55decSDaniel P. Berrange if (su->sun_path[0]) { 1117bd269ebcSMarkus Armbruster addr->u.q_unix.path = g_strndup(su->sun_path, sizeof(su->sun_path)); 111817c55decSDaniel P. Berrange } 111917c55decSDaniel P. Berrange 112017c55decSDaniel P. Berrange return addr; 112117c55decSDaniel P. Berrange } 112217c55decSDaniel P. Berrange #endif /* WIN32 */ 112317c55decSDaniel P. Berrange 11246a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 1125bd269ebcSMarkus Armbruster static SocketAddress * 11266a02c806SStefan Hajnoczi socket_sockaddr_to_address_vsock(struct sockaddr_storage *sa, 11276a02c806SStefan Hajnoczi socklen_t salen, 11286a02c806SStefan Hajnoczi Error **errp) 11296a02c806SStefan Hajnoczi { 1130bd269ebcSMarkus Armbruster SocketAddress *addr; 11316a02c806SStefan Hajnoczi VsockSocketAddress *vaddr; 11326a02c806SStefan Hajnoczi struct sockaddr_vm *svm = (struct sockaddr_vm *)sa; 11336a02c806SStefan Hajnoczi 1134bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1135bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1136bd269ebcSMarkus Armbruster vaddr = &addr->u.vsock; 11376a02c806SStefan Hajnoczi vaddr->cid = g_strdup_printf("%u", svm->svm_cid); 11386a02c806SStefan Hajnoczi vaddr->port = g_strdup_printf("%u", svm->svm_port); 11396a02c806SStefan Hajnoczi 11406a02c806SStefan Hajnoczi return addr; 11416a02c806SStefan Hajnoczi } 11426a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 11436a02c806SStefan Hajnoczi 1144bd269ebcSMarkus Armbruster SocketAddress * 114517c55decSDaniel P. Berrange socket_sockaddr_to_address(struct sockaddr_storage *sa, 114617c55decSDaniel P. Berrange socklen_t salen, 114717c55decSDaniel P. Berrange Error **errp) 114817c55decSDaniel P. Berrange { 114917c55decSDaniel P. Berrange switch (sa->ss_family) { 115017c55decSDaniel P. Berrange case AF_INET: 115117c55decSDaniel P. Berrange case AF_INET6: 115217c55decSDaniel P. Berrange return socket_sockaddr_to_address_inet(sa, salen, errp); 115317c55decSDaniel P. Berrange 115417c55decSDaniel P. Berrange #ifndef WIN32 115517c55decSDaniel P. Berrange case AF_UNIX: 115617c55decSDaniel P. Berrange return socket_sockaddr_to_address_unix(sa, salen, errp); 115717c55decSDaniel P. Berrange #endif /* WIN32 */ 115817c55decSDaniel P. Berrange 11596a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 11606a02c806SStefan Hajnoczi case AF_VSOCK: 11616a02c806SStefan Hajnoczi return socket_sockaddr_to_address_vsock(sa, salen, errp); 11626a02c806SStefan Hajnoczi #endif 11636a02c806SStefan Hajnoczi 116417c55decSDaniel P. Berrange default: 116517c55decSDaniel P. Berrange error_setg(errp, "socket family %d unsupported", 116617c55decSDaniel P. Berrange sa->ss_family); 116717c55decSDaniel P. Berrange return NULL; 116817c55decSDaniel P. Berrange } 116917c55decSDaniel P. Berrange return 0; 117017c55decSDaniel P. Berrange } 117117c55decSDaniel P. Berrange 117217c55decSDaniel P. Berrange 1173bd269ebcSMarkus Armbruster SocketAddress *socket_local_address(int fd, Error **errp) 117417c55decSDaniel P. Berrange { 117517c55decSDaniel P. Berrange struct sockaddr_storage ss; 117617c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 117717c55decSDaniel P. Berrange 117817c55decSDaniel P. Berrange if (getsockname(fd, (struct sockaddr *)&ss, &sslen) < 0) { 1179b16a44e1SDaniel P. Berrange error_setg_errno(errp, errno, "%s", 118017c55decSDaniel P. Berrange "Unable to query local socket address"); 118117c55decSDaniel P. Berrange return NULL; 118217c55decSDaniel P. Berrange } 118317c55decSDaniel P. Berrange 118417c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 118517c55decSDaniel P. Berrange } 118617c55decSDaniel P. Berrange 118717c55decSDaniel P. Berrange 1188bd269ebcSMarkus Armbruster SocketAddress *socket_remote_address(int fd, Error **errp) 118917c55decSDaniel P. Berrange { 119017c55decSDaniel P. Berrange struct sockaddr_storage ss; 119117c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 119217c55decSDaniel P. Berrange 119317c55decSDaniel P. Berrange if (getpeername(fd, (struct sockaddr *)&ss, &sslen) < 0) { 1194b16a44e1SDaniel P. Berrange error_setg_errno(errp, errno, "%s", 119517c55decSDaniel P. Berrange "Unable to query remote socket address"); 119617c55decSDaniel P. Berrange return NULL; 119717c55decSDaniel P. Berrange } 119817c55decSDaniel P. Berrange 119917c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 120017c55decSDaniel P. Berrange } 12012a8e21c7SDaniel P. Berrange 1202216411b8SMarkus Armbruster 1203bd269ebcSMarkus Armbruster SocketAddress *socket_address_flatten(SocketAddressLegacy *addr_legacy) 1204bd269ebcSMarkus Armbruster { 1205fc0f0059SMarkus Armbruster SocketAddress *addr; 1206bd269ebcSMarkus Armbruster 1207bd269ebcSMarkus Armbruster if (!addr_legacy) { 1208bd269ebcSMarkus Armbruster return NULL; 1209bd269ebcSMarkus Armbruster } 1210bd269ebcSMarkus Armbruster 1211fc0f0059SMarkus Armbruster addr = g_new(SocketAddress, 1); 1212fc0f0059SMarkus Armbruster 1213bd269ebcSMarkus Armbruster switch (addr_legacy->type) { 1214bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_INET: 1215bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1216bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(InetSocketAddress, &addr->u.inet, 1217bd269ebcSMarkus Armbruster addr_legacy->u.inet.data); 1218bd269ebcSMarkus Armbruster break; 1219bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_UNIX: 1220bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 1221bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(UnixSocketAddress, &addr->u.q_unix, 1222bd269ebcSMarkus Armbruster addr_legacy->u.q_unix.data); 1223bd269ebcSMarkus Armbruster break; 1224bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_VSOCK: 1225bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1226bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(VsockSocketAddress, &addr->u.vsock, 1227bd269ebcSMarkus Armbruster addr_legacy->u.vsock.data); 1228bd269ebcSMarkus Armbruster break; 1229bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_FD: 1230bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_FD; 1231bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(String, &addr->u.fd, addr_legacy->u.fd.data); 1232bd269ebcSMarkus Armbruster break; 1233bd269ebcSMarkus Armbruster default: 1234bd269ebcSMarkus Armbruster abort(); 1235bd269ebcSMarkus Armbruster } 1236bd269ebcSMarkus Armbruster 1237bd269ebcSMarkus Armbruster return addr; 1238bd269ebcSMarkus Armbruster } 1239