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 24a8d25326SMarkus Armbruster #include "qemu-common.h" 25baacf047SPaolo Bonzini #include "monitor/monitor.h" 26bd269ebcSMarkus Armbruster #include "qapi/clone-visitor.h" 27da34e65cSMarkus Armbruster #include "qapi/error.h" 289af23989SMarkus Armbruster #include "qapi/qapi-visit-sockets.h" 29baacf047SPaolo Bonzini #include "qemu/sockets.h" 30baacf047SPaolo Bonzini #include "qemu/main-loop.h" 31b3db211fSDaniel P. Berrange #include "qapi/qobject-input-visitor.h" 32b3db211fSDaniel P. Berrange #include "qapi/qobject-output-visitor.h" 33f348b6d1SVeronia Bahaa #include "qemu/cutils.h" 34e5b6353cSJuan Quintela #include "trace.h" 35baacf047SPaolo Bonzini 36baacf047SPaolo Bonzini #ifndef AI_ADDRCONFIG 37baacf047SPaolo Bonzini # define AI_ADDRCONFIG 0 38baacf047SPaolo Bonzini #endif 39340849a9SDaniel P. Berrange 403de3d698SWolfgang Bumiller #ifndef AI_V4MAPPED 413de3d698SWolfgang Bumiller # define AI_V4MAPPED 0 423de3d698SWolfgang Bumiller #endif 43baacf047SPaolo Bonzini 446979a813SDaniel P. Berrange #ifndef AI_NUMERICSERV 456979a813SDaniel P. Berrange # define AI_NUMERICSERV 0 466979a813SDaniel P. Berrange #endif 476979a813SDaniel P. Berrange 48baacf047SPaolo Bonzini 49baacf047SPaolo Bonzini static int inet_getport(struct addrinfo *e) 50baacf047SPaolo Bonzini { 51baacf047SPaolo Bonzini struct sockaddr_in *i4; 52baacf047SPaolo Bonzini struct sockaddr_in6 *i6; 53baacf047SPaolo Bonzini 54baacf047SPaolo Bonzini switch (e->ai_family) { 55baacf047SPaolo Bonzini case PF_INET6: 56baacf047SPaolo Bonzini i6 = (void*)e->ai_addr; 57baacf047SPaolo Bonzini return ntohs(i6->sin6_port); 58baacf047SPaolo Bonzini case PF_INET: 59baacf047SPaolo Bonzini i4 = (void*)e->ai_addr; 60baacf047SPaolo Bonzini return ntohs(i4->sin_port); 61baacf047SPaolo Bonzini default: 62baacf047SPaolo Bonzini return 0; 63baacf047SPaolo Bonzini } 64baacf047SPaolo Bonzini } 65baacf047SPaolo Bonzini 66baacf047SPaolo Bonzini static void inet_setport(struct addrinfo *e, int port) 67baacf047SPaolo Bonzini { 68baacf047SPaolo Bonzini struct sockaddr_in *i4; 69baacf047SPaolo Bonzini struct sockaddr_in6 *i6; 70baacf047SPaolo Bonzini 71baacf047SPaolo Bonzini switch (e->ai_family) { 72baacf047SPaolo Bonzini case PF_INET6: 73baacf047SPaolo Bonzini i6 = (void*)e->ai_addr; 74baacf047SPaolo Bonzini i6->sin6_port = htons(port); 75baacf047SPaolo Bonzini break; 76baacf047SPaolo Bonzini case PF_INET: 77baacf047SPaolo Bonzini i4 = (void*)e->ai_addr; 78baacf047SPaolo Bonzini i4->sin_port = htons(port); 79baacf047SPaolo Bonzini break; 80baacf047SPaolo Bonzini } 81baacf047SPaolo Bonzini } 82baacf047SPaolo Bonzini 83a589569fSWenchao Xia NetworkAddressFamily inet_netfamily(int family) 84a589569fSWenchao Xia { 85a589569fSWenchao Xia switch (family) { 86a589569fSWenchao Xia case PF_INET6: return NETWORK_ADDRESS_FAMILY_IPV6; 87a589569fSWenchao Xia case PF_INET: return NETWORK_ADDRESS_FAMILY_IPV4; 88a589569fSWenchao Xia case PF_UNIX: return NETWORK_ADDRESS_FAMILY_UNIX; 896a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 906a02c806SStefan Hajnoczi case PF_VSOCK: return NETWORK_ADDRESS_FAMILY_VSOCK; 916a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 92a589569fSWenchao Xia } 93a589569fSWenchao Xia return NETWORK_ADDRESS_FAMILY_UNKNOWN; 94a589569fSWenchao Xia } 95a589569fSWenchao Xia 9658dc31f1SDaniel P. Berrange bool fd_is_socket(int fd) 9758dc31f1SDaniel P. Berrange { 9858dc31f1SDaniel P. Berrange int optval; 9958dc31f1SDaniel P. Berrange socklen_t optlen = sizeof(optval); 10058dc31f1SDaniel P. Berrange return !qemu_getsockopt(fd, SOL_SOCKET, SO_TYPE, &optval, &optlen); 10158dc31f1SDaniel P. Berrange } 10258dc31f1SDaniel P. Berrange 10358dc31f1SDaniel P. Berrange 1041856835dSDaniel P. Berrange /* 1051856835dSDaniel P. Berrange * Matrix we're trying to apply 1061856835dSDaniel P. Berrange * 1071856835dSDaniel P. Berrange * ipv4 ipv6 family 1081856835dSDaniel P. Berrange * - - PF_UNSPEC 1091856835dSDaniel P. Berrange * - f PF_INET 1101856835dSDaniel P. Berrange * - t PF_INET6 1111856835dSDaniel P. Berrange * f - PF_INET6 1121856835dSDaniel P. Berrange * f f <error> 1131856835dSDaniel P. Berrange * f t PF_INET6 1141856835dSDaniel P. Berrange * t - PF_INET 1151856835dSDaniel P. Berrange * t f PF_INET 11694bc0d19SDaniel P. Berrange * t t PF_INET6/PF_UNSPEC 1171856835dSDaniel P. Berrange * 118d43eda3dSWei Jiangang * NB, this matrix is only about getting the necessary results 1191856835dSDaniel P. Berrange * from getaddrinfo(). Some of the cases require further work 1201856835dSDaniel P. Berrange * after reading results from getaddrinfo in order to fully 12194bc0d19SDaniel P. Berrange * apply the logic the end user wants. 12294bc0d19SDaniel P. Berrange * 12394bc0d19SDaniel P. Berrange * In the first and last cases, we must set IPV6_V6ONLY=0 12494bc0d19SDaniel P. Berrange * when binding, to allow a single listener to potentially 12594bc0d19SDaniel P. Berrange * accept both IPv4+6 addresses. 1261856835dSDaniel P. Berrange */ 127c1b412f1SDaniel P. Berrange int inet_ai_family_from_address(InetSocketAddress *addr, 1281856835dSDaniel P. Berrange Error **errp) 1291856835dSDaniel P. Berrange { 1301856835dSDaniel P. Berrange if (addr->has_ipv6 && addr->has_ipv4 && 1311856835dSDaniel P. Berrange !addr->ipv6 && !addr->ipv4) { 1321856835dSDaniel P. Berrange error_setg(errp, "Cannot disable IPv4 and IPv6 at same time"); 1331856835dSDaniel P. Berrange return PF_UNSPEC; 1341856835dSDaniel P. Berrange } 13594bc0d19SDaniel P. Berrange if ((addr->has_ipv6 && addr->ipv6) && (addr->has_ipv4 && addr->ipv4)) { 13694bc0d19SDaniel P. Berrange /* 13794bc0d19SDaniel P. Berrange * Some backends can only do a single listener. In that case 13894bc0d19SDaniel P. Berrange * we want empty hostname to resolve to "::" and then use the 13994bc0d19SDaniel P. Berrange * flag IPV6_V6ONLY==0 to get both protocols on 1 socket. This 14094bc0d19SDaniel P. Berrange * doesn't work for addresses other than "", so they're just 14194bc0d19SDaniel P. Berrange * inevitably broken until multiple listeners can be used, 14294bc0d19SDaniel P. Berrange * and thus we honour getaddrinfo automatic protocol detection 14394bc0d19SDaniel P. Berrange * Once all backends do multi-listener, remove the PF_INET6 14494bc0d19SDaniel P. Berrange * branch entirely. 14594bc0d19SDaniel P. Berrange */ 14694bc0d19SDaniel P. Berrange if (!addr->host || g_str_equal(addr->host, "")) { 14794bc0d19SDaniel P. Berrange return PF_INET6; 14894bc0d19SDaniel P. Berrange } else { 14994bc0d19SDaniel P. Berrange return PF_UNSPEC; 15094bc0d19SDaniel P. Berrange } 15194bc0d19SDaniel P. Berrange } 1521856835dSDaniel P. Berrange if ((addr->has_ipv6 && addr->ipv6) || (addr->has_ipv4 && !addr->ipv4)) { 1531856835dSDaniel P. Berrange return PF_INET6; 1541856835dSDaniel P. Berrange } 1551856835dSDaniel P. Berrange if ((addr->has_ipv4 && addr->ipv4) || (addr->has_ipv6 && !addr->ipv6)) { 1561856835dSDaniel P. Berrange return PF_INET; 1571856835dSDaniel P. Berrange } 1581856835dSDaniel P. Berrange return PF_UNSPEC; 1591856835dSDaniel P. Berrange } 1601856835dSDaniel P. Berrange 16139f80521SKnut Omang static int create_fast_reuse_socket(struct addrinfo *e) 16239f80521SKnut Omang { 16339f80521SKnut Omang int slisten = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol); 16439f80521SKnut Omang if (slisten < 0) { 16539f80521SKnut Omang return -1; 16639f80521SKnut Omang } 16739f80521SKnut Omang socket_set_fast_reuse(slisten); 16839f80521SKnut Omang return slisten; 16939f80521SKnut Omang } 17039f80521SKnut Omang 17189382c3dSKnut Omang static int try_bind(int socket, InetSocketAddress *saddr, struct addrinfo *e) 17289382c3dSKnut Omang { 17389382c3dSKnut Omang #ifndef IPV6_V6ONLY 17489382c3dSKnut Omang return bind(socket, e->ai_addr, e->ai_addrlen); 17589382c3dSKnut Omang #else 17689382c3dSKnut Omang /* 17789382c3dSKnut Omang * Deals with first & last cases in matrix in comment 17889382c3dSKnut Omang * for inet_ai_family_from_address(). 17989382c3dSKnut Omang */ 18089382c3dSKnut Omang int v6only = 18189382c3dSKnut Omang ((!saddr->has_ipv4 && !saddr->has_ipv6) || 18289382c3dSKnut Omang (saddr->has_ipv4 && saddr->ipv4 && 18389382c3dSKnut Omang saddr->has_ipv6 && saddr->ipv6)) ? 0 : 1; 18489382c3dSKnut Omang int stat; 18589382c3dSKnut Omang 18689382c3dSKnut Omang rebind: 18789382c3dSKnut Omang if (e->ai_family == PF_INET6) { 18889382c3dSKnut Omang qemu_setsockopt(socket, IPPROTO_IPV6, IPV6_V6ONLY, &v6only, 18989382c3dSKnut Omang sizeof(v6only)); 19089382c3dSKnut Omang } 19189382c3dSKnut Omang 19289382c3dSKnut Omang stat = bind(socket, e->ai_addr, e->ai_addrlen); 19389382c3dSKnut Omang if (!stat) { 19489382c3dSKnut Omang return 0; 19589382c3dSKnut Omang } 19689382c3dSKnut Omang 19789382c3dSKnut Omang /* If we got EADDRINUSE from an IPv6 bind & v6only is unset, 19889382c3dSKnut Omang * it could be that the IPv4 port is already claimed, so retry 19989382c3dSKnut Omang * with v6only set 20089382c3dSKnut Omang */ 20189382c3dSKnut Omang if (e->ai_family == PF_INET6 && errno == EADDRINUSE && !v6only) { 20289382c3dSKnut Omang v6only = 1; 20389382c3dSKnut Omang goto rebind; 20489382c3dSKnut Omang } 20589382c3dSKnut Omang return stat; 20689382c3dSKnut Omang #endif 20789382c3dSKnut Omang } 20889382c3dSKnut Omang 2091856835dSDaniel P. Berrange static int inet_listen_saddr(InetSocketAddress *saddr, 2101856835dSDaniel P. Berrange int port_offset, 211e5b6353cSJuan Quintela int num, 2121856835dSDaniel P. Berrange Error **errp) 213baacf047SPaolo Bonzini { 214baacf047SPaolo Bonzini struct addrinfo ai,*res,*e; 215baacf047SPaolo Bonzini char port[33]; 216baacf047SPaolo Bonzini char uaddr[INET6_ADDRSTRLEN+1]; 217baacf047SPaolo Bonzini char uport[33]; 2189cf961bbSKnut Omang int rc, port_min, port_max, p; 21910a7b7e6SDaniel P. Berrange int slisten = -1; 2209cf961bbSKnut Omang int saved_errno = 0; 2219cf961bbSKnut Omang bool socket_created = false; 2221856835dSDaniel P. Berrange Error *err = NULL; 223baacf047SPaolo Bonzini 224aec21d31SVladimir Sementsov-Ogievskiy if (saddr->keep_alive) { 225aec21d31SVladimir Sementsov-Ogievskiy error_setg(errp, "keep-alive option is not supported for passive " 226aec21d31SVladimir Sementsov-Ogievskiy "sockets"); 227aec21d31SVladimir Sementsov-Ogievskiy return -1; 228aec21d31SVladimir Sementsov-Ogievskiy } 229aec21d31SVladimir Sementsov-Ogievskiy 230baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 2313de3d698SWolfgang Bumiller ai.ai_flags = AI_PASSIVE; 2326979a813SDaniel P. Berrange if (saddr->has_numeric && saddr->numeric) { 2336979a813SDaniel P. Berrange ai.ai_flags |= AI_NUMERICHOST | AI_NUMERICSERV; 2346979a813SDaniel P. Berrange } 2351856835dSDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(saddr, &err); 236baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 237baacf047SPaolo Bonzini 2381856835dSDaniel P. Berrange if (err) { 2391856835dSDaniel P. Berrange error_propagate(errp, err); 2401856835dSDaniel P. Berrange return -1; 2411856835dSDaniel P. Berrange } 2421856835dSDaniel P. Berrange 2431856835dSDaniel P. Berrange if (saddr->host == NULL) { 2440983f5e6SDaniel P. Berrange error_setg(errp, "host not specified"); 245baacf047SPaolo Bonzini return -1; 246baacf047SPaolo Bonzini } 2471856835dSDaniel P. Berrange if (saddr->port != NULL) { 2481856835dSDaniel P. Berrange pstrcpy(port, sizeof(port), saddr->port); 2490983f5e6SDaniel P. Berrange } else { 2500983f5e6SDaniel P. Berrange port[0] = '\0'; 2510983f5e6SDaniel P. Berrange } 252baacf047SPaolo Bonzini 253baacf047SPaolo Bonzini /* lookup */ 2548bc89127SGerd Hoffmann if (port_offset) { 2558bc89127SGerd Hoffmann unsigned long long baseport; 2560983f5e6SDaniel P. Berrange if (strlen(port) == 0) { 2570983f5e6SDaniel P. Berrange error_setg(errp, "port not specified"); 2580983f5e6SDaniel P. Berrange return -1; 2590983f5e6SDaniel P. Berrange } 2608bc89127SGerd Hoffmann if (parse_uint_full(port, &baseport, 10) < 0) { 2618bc89127SGerd Hoffmann error_setg(errp, "can't convert to a number: %s", port); 2628bc89127SGerd Hoffmann return -1; 2638bc89127SGerd Hoffmann } 2648bc89127SGerd Hoffmann if (baseport > 65535 || 2658bc89127SGerd Hoffmann baseport + port_offset > 65535) { 2668bc89127SGerd Hoffmann error_setg(errp, "port %s out of range", port); 2678bc89127SGerd Hoffmann return -1; 2688bc89127SGerd Hoffmann } 2698bc89127SGerd Hoffmann snprintf(port, sizeof(port), "%d", (int)baseport + port_offset); 2708bc89127SGerd Hoffmann } 2711856835dSDaniel P. Berrange rc = getaddrinfo(strlen(saddr->host) ? saddr->host : NULL, 2720983f5e6SDaniel P. Berrange strlen(port) ? port : NULL, &ai, &res); 273baacf047SPaolo Bonzini if (rc != 0) { 2741856835dSDaniel P. Berrange error_setg(errp, "address resolution failed for %s:%s: %s", 2751856835dSDaniel P. Berrange saddr->host, port, gai_strerror(rc)); 276baacf047SPaolo Bonzini return -1; 277baacf047SPaolo Bonzini } 278baacf047SPaolo Bonzini 2799cf961bbSKnut Omang /* create socket + bind/listen */ 280baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 281baacf047SPaolo Bonzini getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen, 282baacf047SPaolo Bonzini uaddr,INET6_ADDRSTRLEN,uport,32, 283baacf047SPaolo Bonzini NI_NUMERICHOST | NI_NUMERICSERV); 28439f80521SKnut Omang 285baacf047SPaolo Bonzini port_min = inet_getport(e); 2861856835dSDaniel P. Berrange port_max = saddr->has_to ? saddr->to + port_offset : port_min; 287baacf047SPaolo Bonzini for (p = port_min; p <= port_max; p++) { 288baacf047SPaolo Bonzini inet_setport(e, p); 28910a7b7e6SDaniel P. Berrange 29010a7b7e6SDaniel P. Berrange slisten = create_fast_reuse_socket(e); 29110a7b7e6SDaniel P. Berrange if (slisten < 0) { 29210a7b7e6SDaniel P. Berrange /* First time we expect we might fail to create the socket 29310a7b7e6SDaniel P. Berrange * eg if 'e' has AF_INET6 but ipv6 kmod is not loaded. 29410a7b7e6SDaniel P. Berrange * Later iterations should always succeed if first iteration 29510a7b7e6SDaniel P. Berrange * worked though, so treat that as fatal. 29610a7b7e6SDaniel P. Berrange */ 29710a7b7e6SDaniel P. Berrange if (p == port_min) { 2989cf961bbSKnut Omang continue; 2999cf961bbSKnut Omang } else { 30010a7b7e6SDaniel P. Berrange error_setg_errno(errp, errno, 30110a7b7e6SDaniel P. Berrange "Failed to recreate failed listening socket"); 3029cf961bbSKnut Omang goto listen_failed; 3039cf961bbSKnut Omang } 3049cf961bbSKnut Omang } 30510a7b7e6SDaniel P. Berrange socket_created = true; 30610a7b7e6SDaniel P. Berrange 30710a7b7e6SDaniel P. Berrange rc = try_bind(slisten, saddr, e); 30810a7b7e6SDaniel P. Berrange if (rc < 0) { 30910a7b7e6SDaniel P. Berrange if (errno != EADDRINUSE) { 31010a7b7e6SDaniel P. Berrange error_setg_errno(errp, errno, "Failed to bind socket"); 31110a7b7e6SDaniel P. Berrange goto listen_failed; 31210a7b7e6SDaniel P. Berrange } 31310a7b7e6SDaniel P. Berrange } else { 314e5b6353cSJuan Quintela if (!listen(slisten, num)) { 3159cf961bbSKnut Omang goto listen_ok; 3169cf961bbSKnut Omang } 3179cf961bbSKnut Omang if (errno != EADDRINUSE) { 3189cf961bbSKnut Omang error_setg_errno(errp, errno, "Failed to listen on socket"); 3199cf961bbSKnut Omang goto listen_failed; 3209cf961bbSKnut Omang } 32110a7b7e6SDaniel P. Berrange } 3229cf961bbSKnut Omang /* Someone else managed to bind to the same port and beat us 3239cf961bbSKnut Omang * to listen on it! Socket semantics does not allow us to 3249cf961bbSKnut Omang * recover from this situation, so we need to recreate the 3259cf961bbSKnut Omang * socket to allow bind attempts for subsequent ports: 3269cf961bbSKnut Omang */ 3279cf961bbSKnut Omang closesocket(slisten); 32810a7b7e6SDaniel P. Berrange slisten = -1; 329baacf047SPaolo Bonzini } 330baacf047SPaolo Bonzini } 3319cf961bbSKnut Omang error_setg_errno(errp, errno, 3329cf961bbSKnut Omang socket_created ? 3339cf961bbSKnut Omang "Failed to find an available port" : 3349cf961bbSKnut Omang "Failed to create a socket"); 3359cf961bbSKnut Omang listen_failed: 3369cf961bbSKnut Omang saved_errno = errno; 3379cf961bbSKnut Omang if (slisten >= 0) { 338baacf047SPaolo Bonzini closesocket(slisten); 339baacf047SPaolo Bonzini } 340baacf047SPaolo Bonzini freeaddrinfo(res); 3419cf961bbSKnut Omang errno = saved_errno; 342baacf047SPaolo Bonzini return -1; 343baacf047SPaolo Bonzini 3449cf961bbSKnut Omang listen_ok: 345baacf047SPaolo Bonzini freeaddrinfo(res); 346baacf047SPaolo Bonzini return slisten; 347baacf047SPaolo Bonzini } 348baacf047SPaolo Bonzini 349baacf047SPaolo Bonzini #ifdef _WIN32 350baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 351baacf047SPaolo Bonzini ((rc) == -EINPROGRESS || (rc) == -EWOULDBLOCK || (rc) == -WSAEALREADY) 352baacf047SPaolo Bonzini #else 353baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 354baacf047SPaolo Bonzini ((rc) == -EINPROGRESS) 355baacf047SPaolo Bonzini #endif 356baacf047SPaolo Bonzini 357dfc00eb7SDaniel P. Berrangé static int inet_connect_addr(const InetSocketAddress *saddr, 358dfc00eb7SDaniel P. Berrangé struct addrinfo *addr, Error **errp) 359baacf047SPaolo Bonzini { 360baacf047SPaolo Bonzini int sock, rc; 361baacf047SPaolo Bonzini 362baacf047SPaolo Bonzini sock = qemu_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol); 363baacf047SPaolo Bonzini if (sock < 0) { 364dfc00eb7SDaniel P. Berrangé error_setg_errno(errp, errno, "Failed to create socket family %d", 365dfc00eb7SDaniel P. Berrangé addr->ai_family); 366baacf047SPaolo Bonzini return -1; 367baacf047SPaolo Bonzini } 36804fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 369b2587932SCao jin 370baacf047SPaolo Bonzini /* connect to peer */ 371baacf047SPaolo Bonzini do { 372baacf047SPaolo Bonzini rc = 0; 373baacf047SPaolo Bonzini if (connect(sock, addr->ai_addr, addr->ai_addrlen) < 0) { 374b16a44e1SDaniel P. Berrange rc = -errno; 375baacf047SPaolo Bonzini } 376baacf047SPaolo Bonzini } while (rc == -EINTR); 377baacf047SPaolo Bonzini 378b2587932SCao jin if (rc < 0) { 379dfc00eb7SDaniel P. Berrangé error_setg_errno(errp, errno, "Failed to connect to '%s:%s'", 380dfc00eb7SDaniel P. Berrangé saddr->host, saddr->port); 381baacf047SPaolo Bonzini closesocket(sock); 382baacf047SPaolo Bonzini return -1; 383baacf047SPaolo Bonzini } 384b2587932SCao jin 385baacf047SPaolo Bonzini return sock; 386baacf047SPaolo Bonzini } 387baacf047SPaolo Bonzini 3882942e420SDaniel P. Berrange static struct addrinfo *inet_parse_connect_saddr(InetSocketAddress *saddr, 3892942e420SDaniel P. Berrange Error **errp) 390baacf047SPaolo Bonzini { 391baacf047SPaolo Bonzini struct addrinfo ai, *res; 392baacf047SPaolo Bonzini int rc; 3932942e420SDaniel P. Berrange Error *err = NULL; 394340849a9SDaniel P. Berrange static int useV4Mapped = 1; 395baacf047SPaolo Bonzini 396baacf047SPaolo Bonzini memset(&ai, 0, sizeof(ai)); 397baacf047SPaolo Bonzini 398340849a9SDaniel P. Berrange ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG; 399d73415a3SStefan Hajnoczi if (qatomic_read(&useV4Mapped)) { 400340849a9SDaniel P. Berrange ai.ai_flags |= AI_V4MAPPED; 401340849a9SDaniel P. Berrange } 4022942e420SDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(saddr, &err); 403baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 404baacf047SPaolo Bonzini 4052942e420SDaniel P. Berrange if (err) { 4062942e420SDaniel P. Berrange error_propagate(errp, err); 4072942e420SDaniel P. Berrange return NULL; 4082942e420SDaniel P. Berrange } 4092942e420SDaniel P. Berrange 4102942e420SDaniel P. Berrange if (saddr->host == NULL || saddr->port == NULL) { 411baacf047SPaolo Bonzini error_setg(errp, "host and/or port not specified"); 412baacf047SPaolo Bonzini return NULL; 413baacf047SPaolo Bonzini } 414baacf047SPaolo Bonzini 415baacf047SPaolo Bonzini /* lookup */ 4162942e420SDaniel P. Berrange rc = getaddrinfo(saddr->host, saddr->port, &ai, &res); 417340849a9SDaniel P. Berrange 418340849a9SDaniel P. Berrange /* At least FreeBSD and OS-X 10.6 declare AI_V4MAPPED but 419340849a9SDaniel P. Berrange * then don't implement it in their getaddrinfo(). Detect 4208cc360b9Szhaolichang * this and retry without the flag since that's preferable 421340849a9SDaniel P. Berrange * to a fatal error 422340849a9SDaniel P. Berrange */ 423340849a9SDaniel P. Berrange if (rc == EAI_BADFLAGS && 424340849a9SDaniel P. Berrange (ai.ai_flags & AI_V4MAPPED)) { 425d73415a3SStefan Hajnoczi qatomic_set(&useV4Mapped, 0); 426340849a9SDaniel P. Berrange ai.ai_flags &= ~AI_V4MAPPED; 427340849a9SDaniel P. Berrange rc = getaddrinfo(saddr->host, saddr->port, &ai, &res); 428340849a9SDaniel P. Berrange } 429baacf047SPaolo Bonzini if (rc != 0) { 4302942e420SDaniel P. Berrange error_setg(errp, "address resolution failed for %s:%s: %s", 4312942e420SDaniel P. Berrange saddr->host, saddr->port, gai_strerror(rc)); 432baacf047SPaolo Bonzini return NULL; 433baacf047SPaolo Bonzini } 434baacf047SPaolo Bonzini return res; 435baacf047SPaolo Bonzini } 436baacf047SPaolo Bonzini 437baacf047SPaolo Bonzini /** 438baacf047SPaolo Bonzini * Create a socket and connect it to an address. 439baacf047SPaolo Bonzini * 4402942e420SDaniel P. Berrange * @saddr: Inet socket address specification 441baacf047SPaolo Bonzini * @errp: set on error 442baacf047SPaolo Bonzini * 443baacf047SPaolo Bonzini * Returns: -1 on error, file descriptor on success. 444baacf047SPaolo Bonzini */ 445b2587932SCao jin int inet_connect_saddr(InetSocketAddress *saddr, Error **errp) 446baacf047SPaolo Bonzini { 4473f9286b7SMarkus Armbruster Error *local_err = NULL; 448baacf047SPaolo Bonzini struct addrinfo *res, *e; 449baacf047SPaolo Bonzini int sock = -1; 450baacf047SPaolo Bonzini 4512942e420SDaniel P. Berrange res = inet_parse_connect_saddr(saddr, errp); 452baacf047SPaolo Bonzini if (!res) { 453baacf047SPaolo Bonzini return -1; 454baacf047SPaolo Bonzini } 455baacf047SPaolo Bonzini 456baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 4573f9286b7SMarkus Armbruster error_free(local_err); 4583f9286b7SMarkus Armbruster local_err = NULL; 459dfc00eb7SDaniel P. Berrangé sock = inet_connect_addr(saddr, e, &local_err); 4603f9286b7SMarkus Armbruster if (sock >= 0) { 461baacf047SPaolo Bonzini break; 462baacf047SPaolo Bonzini } 463baacf047SPaolo Bonzini } 4643f9286b7SMarkus Armbruster 465da5e1169SVladimir Sementsov-Ogievskiy freeaddrinfo(res); 466da5e1169SVladimir Sementsov-Ogievskiy 4673f9286b7SMarkus Armbruster if (sock < 0) { 4683f9286b7SMarkus Armbruster error_propagate(errp, local_err); 469da5e1169SVladimir Sementsov-Ogievskiy return sock; 4703f9286b7SMarkus Armbruster } 471b2587932SCao jin 472aec21d31SVladimir Sementsov-Ogievskiy if (saddr->keep_alive) { 473aec21d31SVladimir Sementsov-Ogievskiy int val = 1; 474aec21d31SVladimir Sementsov-Ogievskiy int ret = qemu_setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, 475aec21d31SVladimir Sementsov-Ogievskiy &val, sizeof(val)); 476aec21d31SVladimir Sementsov-Ogievskiy 477aec21d31SVladimir Sementsov-Ogievskiy if (ret < 0) { 478aec21d31SVladimir Sementsov-Ogievskiy error_setg_errno(errp, errno, "Unable to set KEEPALIVE"); 479aec21d31SVladimir Sementsov-Ogievskiy close(sock); 480aec21d31SVladimir Sementsov-Ogievskiy return -1; 481aec21d31SVladimir Sementsov-Ogievskiy } 482aec21d31SVladimir Sementsov-Ogievskiy } 483aec21d31SVladimir Sementsov-Ogievskiy 484baacf047SPaolo Bonzini return sock; 485baacf047SPaolo Bonzini } 486baacf047SPaolo Bonzini 4878b39910eSDaniel P. Berrange static int inet_dgram_saddr(InetSocketAddress *sraddr, 4888b39910eSDaniel P. Berrange InetSocketAddress *sladdr, 4898b39910eSDaniel P. Berrange Error **errp) 490baacf047SPaolo Bonzini { 491baacf047SPaolo Bonzini struct addrinfo ai, *peer = NULL, *local = NULL; 492baacf047SPaolo Bonzini const char *addr; 493baacf047SPaolo Bonzini const char *port; 494baacf047SPaolo Bonzini int sock = -1, rc; 4958b39910eSDaniel P. Berrange Error *err = NULL; 496baacf047SPaolo Bonzini 497baacf047SPaolo Bonzini /* lookup peer addr */ 498baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 4993de3d698SWolfgang Bumiller ai.ai_flags = AI_CANONNAME | AI_V4MAPPED | AI_ADDRCONFIG; 5008b39910eSDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(sraddr, &err); 501baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 502baacf047SPaolo Bonzini 5038b39910eSDaniel P. Berrange if (err) { 5048b39910eSDaniel P. Berrange error_propagate(errp, err); 50558c652c0SPaolo Bonzini goto err; 5068b39910eSDaniel P. Berrange } 5078b39910eSDaniel P. Berrange 5088b39910eSDaniel P. Berrange addr = sraddr->host; 5098b39910eSDaniel P. Berrange port = sraddr->port; 510baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 511baacf047SPaolo Bonzini addr = "localhost"; 512baacf047SPaolo Bonzini } 513baacf047SPaolo Bonzini if (port == NULL || strlen(port) == 0) { 514baacf047SPaolo Bonzini error_setg(errp, "remote port not specified"); 51558c652c0SPaolo Bonzini goto err; 516baacf047SPaolo Bonzini } 517baacf047SPaolo Bonzini 5189cd1883cSCao jin if ((rc = getaddrinfo(addr, port, &ai, &peer)) != 0) { 519baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 520baacf047SPaolo Bonzini gai_strerror(rc)); 52158c652c0SPaolo Bonzini goto err; 522baacf047SPaolo Bonzini } 523baacf047SPaolo Bonzini 524baacf047SPaolo Bonzini /* lookup local addr */ 525baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 526baacf047SPaolo Bonzini ai.ai_flags = AI_PASSIVE; 527baacf047SPaolo Bonzini ai.ai_family = peer->ai_family; 528baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 529baacf047SPaolo Bonzini 5308b39910eSDaniel P. Berrange if (sladdr) { 5318b39910eSDaniel P. Berrange addr = sladdr->host; 5328b39910eSDaniel P. Berrange port = sladdr->port; 533baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 534baacf047SPaolo Bonzini addr = NULL; 535baacf047SPaolo Bonzini } 5368b39910eSDaniel P. Berrange if (!port || strlen(port) == 0) { 537baacf047SPaolo Bonzini port = "0"; 5388b39910eSDaniel P. Berrange } 5398b39910eSDaniel P. Berrange } else { 5408b39910eSDaniel P. Berrange addr = NULL; 5418b39910eSDaniel P. Berrange port = "0"; 5428b39910eSDaniel P. Berrange } 543baacf047SPaolo Bonzini 5449cd1883cSCao jin if ((rc = getaddrinfo(addr, port, &ai, &local)) != 0) { 545baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 546baacf047SPaolo Bonzini gai_strerror(rc)); 547baacf047SPaolo Bonzini goto err; 548baacf047SPaolo Bonzini } 549baacf047SPaolo Bonzini 550baacf047SPaolo Bonzini /* create socket */ 551baacf047SPaolo Bonzini sock = qemu_socket(peer->ai_family, peer->ai_socktype, peer->ai_protocol); 552baacf047SPaolo Bonzini if (sock < 0) { 553dfc00eb7SDaniel P. Berrangé error_setg_errno(errp, errno, "Failed to create socket family %d", 554dfc00eb7SDaniel P. Berrangé peer->ai_family); 555baacf047SPaolo Bonzini goto err; 556baacf047SPaolo Bonzini } 55704fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 558baacf047SPaolo Bonzini 559baacf047SPaolo Bonzini /* bind socket */ 560baacf047SPaolo Bonzini if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) { 561235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 562baacf047SPaolo Bonzini goto err; 563baacf047SPaolo Bonzini } 564baacf047SPaolo Bonzini 565baacf047SPaolo Bonzini /* connect to peer */ 566baacf047SPaolo Bonzini if (connect(sock,peer->ai_addr,peer->ai_addrlen) < 0) { 567dfc00eb7SDaniel P. Berrangé error_setg_errno(errp, errno, "Failed to connect to '%s:%s'", 568dfc00eb7SDaniel P. Berrangé addr, port); 569baacf047SPaolo Bonzini goto err; 570baacf047SPaolo Bonzini } 571baacf047SPaolo Bonzini 572baacf047SPaolo Bonzini freeaddrinfo(local); 573baacf047SPaolo Bonzini freeaddrinfo(peer); 574baacf047SPaolo Bonzini return sock; 575baacf047SPaolo Bonzini 576baacf047SPaolo Bonzini err: 57726015051SCao jin if (sock != -1) { 578baacf047SPaolo Bonzini closesocket(sock); 57926015051SCao jin } 58026015051SCao jin if (local) { 581baacf047SPaolo Bonzini freeaddrinfo(local); 58226015051SCao jin } 58326015051SCao jin if (peer) { 584baacf047SPaolo Bonzini freeaddrinfo(peer); 58526015051SCao jin } 58626015051SCao jin 587baacf047SPaolo Bonzini return -1; 588baacf047SPaolo Bonzini } 589baacf047SPaolo Bonzini 590baacf047SPaolo Bonzini /* compatibility wrapper */ 5913e32370aSDaniel P. Berrange static int inet_parse_flag(const char *flagname, const char *optstr, bool *val, 5923e32370aSDaniel P. Berrange Error **errp) 5933e32370aSDaniel P. Berrange { 5943e32370aSDaniel P. Berrange char *end; 5953e32370aSDaniel P. Berrange size_t len; 5963e32370aSDaniel P. Berrange 5973e32370aSDaniel P. Berrange end = strstr(optstr, ","); 5983e32370aSDaniel P. Berrange if (end) { 5993e32370aSDaniel P. Berrange if (end[1] == ',') { /* Reject 'ipv6=on,,foo' */ 6003e32370aSDaniel P. Berrange error_setg(errp, "error parsing '%s' flag '%s'", flagname, optstr); 6013e32370aSDaniel P. Berrange return -1; 6023e32370aSDaniel P. Berrange } 6033e32370aSDaniel P. Berrange len = end - optstr; 6043e32370aSDaniel P. Berrange } else { 6053e32370aSDaniel P. Berrange len = strlen(optstr); 6063e32370aSDaniel P. Berrange } 6073e32370aSDaniel P. Berrange if (len == 0 || (len == 3 && strncmp(optstr, "=on", len) == 0)) { 6083e32370aSDaniel P. Berrange *val = true; 6093e32370aSDaniel P. Berrange } else if (len == 4 && strncmp(optstr, "=off", len) == 0) { 6103e32370aSDaniel P. Berrange *val = false; 6113e32370aSDaniel P. Berrange } else { 6123e32370aSDaniel P. Berrange error_setg(errp, "error parsing '%s' flag '%s'", flagname, optstr); 6133e32370aSDaniel P. Berrange return -1; 6143e32370aSDaniel P. Berrange } 6153e32370aSDaniel P. Berrange return 0; 6163e32370aSDaniel P. Berrange } 6173e32370aSDaniel P. Berrange 6180785bd7aSMarkus Armbruster int inet_parse(InetSocketAddress *addr, const char *str, Error **errp) 619baacf047SPaolo Bonzini { 620baacf047SPaolo Bonzini const char *optstr, *h; 62155a10996SKevin Wolf char host[65]; 622baacf047SPaolo Bonzini char port[33]; 623baacf047SPaolo Bonzini int to; 624baacf047SPaolo Bonzini int pos; 6253e32370aSDaniel P. Berrange char *begin; 626baacf047SPaolo Bonzini 6270785bd7aSMarkus Armbruster memset(addr, 0, sizeof(*addr)); 628baacf047SPaolo Bonzini 629baacf047SPaolo Bonzini /* parse address */ 630baacf047SPaolo Bonzini if (str[0] == ':') { 631baacf047SPaolo Bonzini /* no host given */ 632baacf047SPaolo Bonzini host[0] = '\0'; 6339cd1883cSCao jin if (sscanf(str, ":%32[^,]%n", port, &pos) != 1) { 634baacf047SPaolo Bonzini error_setg(errp, "error parsing port in address '%s'", str); 6350785bd7aSMarkus Armbruster return -1; 636baacf047SPaolo Bonzini } 637baacf047SPaolo Bonzini } else if (str[0] == '[') { 638baacf047SPaolo Bonzini /* IPv6 addr */ 6399cd1883cSCao jin if (sscanf(str, "[%64[^]]]:%32[^,]%n", host, port, &pos) != 2) { 640baacf047SPaolo Bonzini error_setg(errp, "error parsing IPv6 address '%s'", str); 6410785bd7aSMarkus Armbruster return -1; 642baacf047SPaolo Bonzini } 643baacf047SPaolo Bonzini } else { 644391b7b97SJán Tomko /* hostname or IPv4 addr */ 6459cd1883cSCao jin if (sscanf(str, "%64[^:]:%32[^,]%n", host, port, &pos) != 2) { 646baacf047SPaolo Bonzini error_setg(errp, "error parsing address '%s'", str); 6470785bd7aSMarkus Armbruster return -1; 648baacf047SPaolo Bonzini } 649baacf047SPaolo Bonzini } 650baacf047SPaolo Bonzini 651baacf047SPaolo Bonzini addr->host = g_strdup(host); 652baacf047SPaolo Bonzini addr->port = g_strdup(port); 653baacf047SPaolo Bonzini 654baacf047SPaolo Bonzini /* parse options */ 655baacf047SPaolo Bonzini optstr = str + pos; 656baacf047SPaolo Bonzini h = strstr(optstr, ",to="); 657baacf047SPaolo Bonzini if (h) { 658baacf047SPaolo Bonzini h += 4; 659baacf047SPaolo Bonzini if (sscanf(h, "%d%n", &to, &pos) != 1 || 660baacf047SPaolo Bonzini (h[pos] != '\0' && h[pos] != ',')) { 661baacf047SPaolo Bonzini error_setg(errp, "error parsing to= argument"); 6620785bd7aSMarkus Armbruster return -1; 663baacf047SPaolo Bonzini } 664baacf047SPaolo Bonzini addr->has_to = true; 665baacf047SPaolo Bonzini addr->to = to; 666baacf047SPaolo Bonzini } 6673e32370aSDaniel P. Berrange begin = strstr(optstr, ",ipv4"); 6683e32370aSDaniel P. Berrange if (begin) { 6693e32370aSDaniel P. Berrange if (inet_parse_flag("ipv4", begin + 5, &addr->ipv4, errp) < 0) { 6703e32370aSDaniel P. Berrange return -1; 671baacf047SPaolo Bonzini } 6723e32370aSDaniel P. Berrange addr->has_ipv4 = true; 6733e32370aSDaniel P. Berrange } 6743e32370aSDaniel P. Berrange begin = strstr(optstr, ",ipv6"); 6753e32370aSDaniel P. Berrange if (begin) { 6763e32370aSDaniel P. Berrange if (inet_parse_flag("ipv6", begin + 5, &addr->ipv6, errp) < 0) { 6773e32370aSDaniel P. Berrange return -1; 6783e32370aSDaniel P. Berrange } 6793e32370aSDaniel P. Berrange addr->has_ipv6 = true; 680baacf047SPaolo Bonzini } 681aec21d31SVladimir Sementsov-Ogievskiy begin = strstr(optstr, ",keep-alive"); 682aec21d31SVladimir Sementsov-Ogievskiy if (begin) { 683aec21d31SVladimir Sementsov-Ogievskiy if (inet_parse_flag("keep-alive", begin + strlen(",keep-alive"), 684aec21d31SVladimir Sementsov-Ogievskiy &addr->keep_alive, errp) < 0) 685aec21d31SVladimir Sementsov-Ogievskiy { 686aec21d31SVladimir Sementsov-Ogievskiy return -1; 687aec21d31SVladimir Sementsov-Ogievskiy } 688aec21d31SVladimir Sementsov-Ogievskiy addr->has_keep_alive = true; 689aec21d31SVladimir Sementsov-Ogievskiy } 6900785bd7aSMarkus Armbruster return 0; 691baacf047SPaolo Bonzini } 692baacf047SPaolo Bonzini 693baacf047SPaolo Bonzini 694baacf047SPaolo Bonzini /** 695baacf047SPaolo Bonzini * Create a blocking socket and connect it to an address. 696baacf047SPaolo Bonzini * 697baacf047SPaolo Bonzini * @str: address string 698baacf047SPaolo Bonzini * @errp: set in case of an error 699baacf047SPaolo Bonzini * 700baacf047SPaolo Bonzini * Returns -1 in case of error, file descriptor on success 701baacf047SPaolo Bonzini **/ 702baacf047SPaolo Bonzini int inet_connect(const char *str, Error **errp) 703baacf047SPaolo Bonzini { 704baacf047SPaolo Bonzini int sock = -1; 7050785bd7aSMarkus Armbruster InetSocketAddress *addr = g_new(InetSocketAddress, 1); 706baacf047SPaolo Bonzini 7070785bd7aSMarkus Armbruster if (!inet_parse(addr, str, errp)) { 708b2587932SCao jin sock = inet_connect_saddr(addr, errp); 709baacf047SPaolo Bonzini } 7100785bd7aSMarkus Armbruster qapi_free_InetSocketAddress(addr); 711baacf047SPaolo Bonzini return sock; 712baacf047SPaolo Bonzini } 713baacf047SPaolo Bonzini 7146a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 7156a02c806SStefan Hajnoczi static bool vsock_parse_vaddr_to_sockaddr(const VsockSocketAddress *vaddr, 7166a02c806SStefan Hajnoczi struct sockaddr_vm *svm, 7176a02c806SStefan Hajnoczi Error **errp) 7186a02c806SStefan Hajnoczi { 7196a02c806SStefan Hajnoczi unsigned long long val; 7206a02c806SStefan Hajnoczi 7216a02c806SStefan Hajnoczi memset(svm, 0, sizeof(*svm)); 7226a02c806SStefan Hajnoczi svm->svm_family = AF_VSOCK; 7236a02c806SStefan Hajnoczi 7246a02c806SStefan Hajnoczi if (parse_uint_full(vaddr->cid, &val, 10) < 0 || 7256a02c806SStefan Hajnoczi val > UINT32_MAX) { 7266a02c806SStefan Hajnoczi error_setg(errp, "Failed to parse cid '%s'", vaddr->cid); 7276a02c806SStefan Hajnoczi return false; 7286a02c806SStefan Hajnoczi } 7296a02c806SStefan Hajnoczi svm->svm_cid = val; 7306a02c806SStefan Hajnoczi 7316a02c806SStefan Hajnoczi if (parse_uint_full(vaddr->port, &val, 10) < 0 || 7326a02c806SStefan Hajnoczi val > UINT32_MAX) { 7336a02c806SStefan Hajnoczi error_setg(errp, "Failed to parse port '%s'", vaddr->port); 7346a02c806SStefan Hajnoczi return false; 7356a02c806SStefan Hajnoczi } 7366a02c806SStefan Hajnoczi svm->svm_port = val; 7376a02c806SStefan Hajnoczi 7386a02c806SStefan Hajnoczi return true; 7396a02c806SStefan Hajnoczi } 7406a02c806SStefan Hajnoczi 741dfc00eb7SDaniel P. Berrangé static int vsock_connect_addr(const VsockSocketAddress *vaddr, 742dfc00eb7SDaniel P. Berrangé const struct sockaddr_vm *svm, Error **errp) 7436a02c806SStefan Hajnoczi { 7446a02c806SStefan Hajnoczi int sock, rc; 7456a02c806SStefan Hajnoczi 7466a02c806SStefan Hajnoczi sock = qemu_socket(AF_VSOCK, SOCK_STREAM, 0); 7476a02c806SStefan Hajnoczi if (sock < 0) { 748dfc00eb7SDaniel P. Berrangé error_setg_errno(errp, errno, "Failed to create socket family %d", 749dfc00eb7SDaniel P. Berrangé AF_VSOCK); 7506a02c806SStefan Hajnoczi return -1; 7516a02c806SStefan Hajnoczi } 752b2587932SCao jin 7536a02c806SStefan Hajnoczi /* connect to peer */ 7546a02c806SStefan Hajnoczi do { 7556a02c806SStefan Hajnoczi rc = 0; 7566a02c806SStefan Hajnoczi if (connect(sock, (const struct sockaddr *)svm, sizeof(*svm)) < 0) { 7576a02c806SStefan Hajnoczi rc = -errno; 7586a02c806SStefan Hajnoczi } 7596a02c806SStefan Hajnoczi } while (rc == -EINTR); 7606a02c806SStefan Hajnoczi 761b2587932SCao jin if (rc < 0) { 762dfc00eb7SDaniel P. Berrangé error_setg_errno(errp, errno, "Failed to connect to '%s:%s'", 763dfc00eb7SDaniel P. Berrangé vaddr->cid, vaddr->port); 7646a02c806SStefan Hajnoczi closesocket(sock); 7656a02c806SStefan Hajnoczi return -1; 7666a02c806SStefan Hajnoczi } 767b2587932SCao jin 7686a02c806SStefan Hajnoczi return sock; 7696a02c806SStefan Hajnoczi } 7706a02c806SStefan Hajnoczi 771b2587932SCao jin static int vsock_connect_saddr(VsockSocketAddress *vaddr, Error **errp) 7726a02c806SStefan Hajnoczi { 7736a02c806SStefan Hajnoczi struct sockaddr_vm svm; 7746a02c806SStefan Hajnoczi 7756a02c806SStefan Hajnoczi if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) { 7766a02c806SStefan Hajnoczi return -1; 7776a02c806SStefan Hajnoczi } 7786a02c806SStefan Hajnoczi 779dfc00eb7SDaniel P. Berrangé return vsock_connect_addr(vaddr, &svm, errp); 7806a02c806SStefan Hajnoczi } 7816a02c806SStefan Hajnoczi 7826a02c806SStefan Hajnoczi static int vsock_listen_saddr(VsockSocketAddress *vaddr, 783e5b6353cSJuan Quintela int num, 7846a02c806SStefan Hajnoczi Error **errp) 7856a02c806SStefan Hajnoczi { 7866a02c806SStefan Hajnoczi struct sockaddr_vm svm; 7876a02c806SStefan Hajnoczi int slisten; 7886a02c806SStefan Hajnoczi 7896a02c806SStefan Hajnoczi if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) { 7906a02c806SStefan Hajnoczi return -1; 7916a02c806SStefan Hajnoczi } 7926a02c806SStefan Hajnoczi 7936a02c806SStefan Hajnoczi slisten = qemu_socket(AF_VSOCK, SOCK_STREAM, 0); 7946a02c806SStefan Hajnoczi if (slisten < 0) { 7956a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to create socket"); 7966a02c806SStefan Hajnoczi return -1; 7976a02c806SStefan Hajnoczi } 7986a02c806SStefan Hajnoczi 7996a02c806SStefan Hajnoczi if (bind(slisten, (const struct sockaddr *)&svm, sizeof(svm)) != 0) { 8006a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to bind socket"); 8016a02c806SStefan Hajnoczi closesocket(slisten); 8026a02c806SStefan Hajnoczi return -1; 8036a02c806SStefan Hajnoczi } 8046a02c806SStefan Hajnoczi 805e5b6353cSJuan Quintela if (listen(slisten, num) != 0) { 8066a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to listen on socket"); 8076a02c806SStefan Hajnoczi closesocket(slisten); 8086a02c806SStefan Hajnoczi return -1; 8096a02c806SStefan Hajnoczi } 8106a02c806SStefan Hajnoczi return slisten; 8116a02c806SStefan Hajnoczi } 8126a02c806SStefan Hajnoczi 8134db5c619SMarkus Armbruster static int vsock_parse(VsockSocketAddress *addr, const char *str, 8144db5c619SMarkus Armbruster Error **errp) 8156a02c806SStefan Hajnoczi { 8166a02c806SStefan Hajnoczi char cid[33]; 8176a02c806SStefan Hajnoczi char port[33]; 8186a02c806SStefan Hajnoczi int n; 8196a02c806SStefan Hajnoczi 8206a02c806SStefan Hajnoczi if (sscanf(str, "%32[^:]:%32[^,]%n", cid, port, &n) != 2) { 8216a02c806SStefan Hajnoczi error_setg(errp, "error parsing address '%s'", str); 8224db5c619SMarkus Armbruster return -1; 8236a02c806SStefan Hajnoczi } 8246a02c806SStefan Hajnoczi if (str[n] != '\0') { 8256a02c806SStefan Hajnoczi error_setg(errp, "trailing characters in address '%s'", str); 8264db5c619SMarkus Armbruster return -1; 8276a02c806SStefan Hajnoczi } 8286a02c806SStefan Hajnoczi 8296a02c806SStefan Hajnoczi addr->cid = g_strdup(cid); 8306a02c806SStefan Hajnoczi addr->port = g_strdup(port); 8314db5c619SMarkus Armbruster return 0; 8326a02c806SStefan Hajnoczi } 8336a02c806SStefan Hajnoczi #else 8346a02c806SStefan Hajnoczi static void vsock_unsupported(Error **errp) 8356a02c806SStefan Hajnoczi { 8366a02c806SStefan Hajnoczi error_setg(errp, "socket family AF_VSOCK unsupported"); 8376a02c806SStefan Hajnoczi } 8386a02c806SStefan Hajnoczi 839b2587932SCao jin static int vsock_connect_saddr(VsockSocketAddress *vaddr, Error **errp) 8406a02c806SStefan Hajnoczi { 8416a02c806SStefan Hajnoczi vsock_unsupported(errp); 8426a02c806SStefan Hajnoczi return -1; 8436a02c806SStefan Hajnoczi } 8446a02c806SStefan Hajnoczi 8456a02c806SStefan Hajnoczi static int vsock_listen_saddr(VsockSocketAddress *vaddr, 846e5b6353cSJuan Quintela int num, 8476a02c806SStefan Hajnoczi Error **errp) 8486a02c806SStefan Hajnoczi { 8496a02c806SStefan Hajnoczi vsock_unsupported(errp); 8506a02c806SStefan Hajnoczi return -1; 8516a02c806SStefan Hajnoczi } 8526a02c806SStefan Hajnoczi 8534db5c619SMarkus Armbruster static int vsock_parse(VsockSocketAddress *addr, const char *str, 8544db5c619SMarkus Armbruster Error **errp) 8556a02c806SStefan Hajnoczi { 8566a02c806SStefan Hajnoczi vsock_unsupported(errp); 8574db5c619SMarkus Armbruster return -1; 8586a02c806SStefan Hajnoczi } 8596a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 8606a02c806SStefan Hajnoczi 861baacf047SPaolo Bonzini #ifndef _WIN32 862baacf047SPaolo Bonzini 8631856835dSDaniel P. Berrange static int unix_listen_saddr(UnixSocketAddress *saddr, 864e5b6353cSJuan Quintela int num, 8651856835dSDaniel P. Berrange Error **errp) 866baacf047SPaolo Bonzini { 867baacf047SPaolo Bonzini struct sockaddr_un un; 868baacf047SPaolo Bonzini int sock, fd; 869ad9579aaSDaniel P. Berrange char *pathbuf = NULL; 870ad9579aaSDaniel P. Berrange const char *path; 8712d2023c3SDaniel P. Berrangé size_t pathlen; 872776b97d3Sxiaoqiang zhao size_t addrlen; 873baacf047SPaolo Bonzini 874baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 875baacf047SPaolo Bonzini if (sock < 0) { 876b658c53dSPaolo Bonzini error_setg_errno(errp, errno, "Failed to create Unix socket"); 877baacf047SPaolo Bonzini return -1; 878baacf047SPaolo Bonzini } 879baacf047SPaolo Bonzini 880ad9579aaSDaniel P. Berrange if (saddr->path && saddr->path[0]) { 881ad9579aaSDaniel P. Berrange path = saddr->path; 882baacf047SPaolo Bonzini } else { 883b658c53dSPaolo Bonzini const char *tmpdir = getenv("TMPDIR"); 884b658c53dSPaolo Bonzini tmpdir = tmpdir ? tmpdir : "/tmp"; 885ad9579aaSDaniel P. Berrange path = pathbuf = g_strdup_printf("%s/qemu-socket-XXXXXX", tmpdir); 886ad9579aaSDaniel P. Berrange } 887ad9579aaSDaniel P. Berrange 8882d2023c3SDaniel P. Berrangé pathlen = strlen(path); 889776b97d3Sxiaoqiang zhao if (pathlen > sizeof(un.sun_path) || 890776b97d3Sxiaoqiang zhao (saddr->abstract && pathlen > (sizeof(un.sun_path) - 1))) { 891ad9579aaSDaniel P. Berrange error_setg(errp, "UNIX socket path '%s' is too long", path); 892ad9579aaSDaniel P. Berrange error_append_hint(errp, "Path must be less than %zu bytes\n", 893776b97d3Sxiaoqiang zhao saddr->abstract ? sizeof(un.sun_path) - 1 : 894ad9579aaSDaniel P. Berrange sizeof(un.sun_path)); 895b658c53dSPaolo Bonzini goto err; 896b658c53dSPaolo Bonzini } 897b658c53dSPaolo Bonzini 898ad9579aaSDaniel P. Berrange if (pathbuf != NULL) { 899baacf047SPaolo Bonzini /* 900baacf047SPaolo Bonzini * This dummy fd usage silences the mktemp() unsecure warning. 901baacf047SPaolo Bonzini * Using mkstemp() doesn't make things more secure here 902baacf047SPaolo Bonzini * though. bind() complains about existing files, so we have 903baacf047SPaolo Bonzini * to unlink first and thus re-open the race window. The 904baacf047SPaolo Bonzini * worst case possible is bind() failing, i.e. a DoS attack. 905baacf047SPaolo Bonzini */ 906ad9579aaSDaniel P. Berrange fd = mkstemp(pathbuf); 907b658c53dSPaolo Bonzini if (fd < 0) { 908b658c53dSPaolo Bonzini error_setg_errno(errp, errno, 909ad9579aaSDaniel P. Berrange "Failed to make a temporary socket %s", pathbuf); 910b658c53dSPaolo Bonzini goto err; 911b658c53dSPaolo Bonzini } 912b658c53dSPaolo Bonzini close(fd); 913baacf047SPaolo Bonzini } 914baacf047SPaolo Bonzini 915776b97d3Sxiaoqiang zhao if (!saddr->abstract && unlink(path) < 0 && errno != ENOENT) { 9160ef705a2SCole Robinson error_setg_errno(errp, errno, 917ad9579aaSDaniel P. Berrange "Failed to unlink socket %s", path); 9180ef705a2SCole Robinson goto err; 9190ef705a2SCole Robinson } 920ad9579aaSDaniel P. Berrange 921ad9579aaSDaniel P. Berrange memset(&un, 0, sizeof(un)); 922ad9579aaSDaniel P. Berrange un.sun_family = AF_UNIX; 923776b97d3Sxiaoqiang zhao addrlen = sizeof(un); 924ad9579aaSDaniel P. Berrange 925776b97d3Sxiaoqiang zhao if (saddr->abstract) { 926776b97d3Sxiaoqiang zhao un.sun_path[0] = '\0'; 927776b97d3Sxiaoqiang zhao memcpy(&un.sun_path[1], path, pathlen); 928b08cc97dSMarkus Armbruster if (!saddr->has_tight || saddr->tight) { 929776b97d3Sxiaoqiang zhao addrlen = offsetof(struct sockaddr_un, sun_path) + 1 + pathlen; 930776b97d3Sxiaoqiang zhao } 931776b97d3Sxiaoqiang zhao } else { 932776b97d3Sxiaoqiang zhao memcpy(un.sun_path, path, pathlen); 933776b97d3Sxiaoqiang zhao } 934776b97d3Sxiaoqiang zhao 935776b97d3Sxiaoqiang zhao if (bind(sock, (struct sockaddr *) &un, addrlen) < 0) { 93656382bd5SDaniel P. Berrange error_setg_errno(errp, errno, "Failed to bind socket to %s", path); 937baacf047SPaolo Bonzini goto err; 938baacf047SPaolo Bonzini } 939e5b6353cSJuan Quintela if (listen(sock, num) < 0) { 940235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 941baacf047SPaolo Bonzini goto err; 942baacf047SPaolo Bonzini } 943baacf047SPaolo Bonzini 944ad9579aaSDaniel P. Berrange g_free(pathbuf); 945baacf047SPaolo Bonzini return sock; 946baacf047SPaolo Bonzini 947baacf047SPaolo Bonzini err: 948ad9579aaSDaniel P. Berrange g_free(pathbuf); 949baacf047SPaolo Bonzini closesocket(sock); 950baacf047SPaolo Bonzini return -1; 951baacf047SPaolo Bonzini } 952baacf047SPaolo Bonzini 953b2587932SCao jin static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp) 954baacf047SPaolo Bonzini { 955baacf047SPaolo Bonzini struct sockaddr_un un; 956baacf047SPaolo Bonzini int sock, rc; 9572d2023c3SDaniel P. Berrangé size_t pathlen; 958776b97d3Sxiaoqiang zhao size_t addrlen; 959baacf047SPaolo Bonzini 9602942e420SDaniel P. Berrange if (saddr->path == NULL) { 961312fd5f2SMarkus Armbruster error_setg(errp, "unix connect: no path specified"); 962baacf047SPaolo Bonzini return -1; 963baacf047SPaolo Bonzini } 964baacf047SPaolo Bonzini 965baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 966baacf047SPaolo Bonzini if (sock < 0) { 967235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 968baacf047SPaolo Bonzini return -1; 969baacf047SPaolo Bonzini } 970baacf047SPaolo Bonzini 9712d2023c3SDaniel P. Berrangé pathlen = strlen(saddr->path); 972776b97d3Sxiaoqiang zhao if (pathlen > sizeof(un.sun_path) || 973776b97d3Sxiaoqiang zhao (saddr->abstract && pathlen > (sizeof(un.sun_path) - 1))) { 974ad9579aaSDaniel P. Berrange error_setg(errp, "UNIX socket path '%s' is too long", saddr->path); 975ad9579aaSDaniel P. Berrange error_append_hint(errp, "Path must be less than %zu bytes\n", 976776b97d3Sxiaoqiang zhao saddr->abstract ? sizeof(un.sun_path) - 1 : 977ad9579aaSDaniel P. Berrange sizeof(un.sun_path)); 978ad9579aaSDaniel P. Berrange goto err; 979ad9579aaSDaniel P. Berrange } 980ad9579aaSDaniel P. Berrange 981baacf047SPaolo Bonzini memset(&un, 0, sizeof(un)); 982baacf047SPaolo Bonzini un.sun_family = AF_UNIX; 983776b97d3Sxiaoqiang zhao addrlen = sizeof(un); 984baacf047SPaolo Bonzini 985776b97d3Sxiaoqiang zhao if (saddr->abstract) { 986776b97d3Sxiaoqiang zhao un.sun_path[0] = '\0'; 987776b97d3Sxiaoqiang zhao memcpy(&un.sun_path[1], saddr->path, pathlen); 988b08cc97dSMarkus Armbruster if (!saddr->has_tight || saddr->tight) { 989776b97d3Sxiaoqiang zhao addrlen = offsetof(struct sockaddr_un, sun_path) + 1 + pathlen; 990776b97d3Sxiaoqiang zhao } 991776b97d3Sxiaoqiang zhao } else { 992776b97d3Sxiaoqiang zhao memcpy(un.sun_path, saddr->path, pathlen); 993776b97d3Sxiaoqiang zhao } 994baacf047SPaolo Bonzini /* connect to peer */ 995baacf047SPaolo Bonzini do { 996baacf047SPaolo Bonzini rc = 0; 997776b97d3Sxiaoqiang zhao if (connect(sock, (struct sockaddr *) &un, addrlen) < 0) { 998b16a44e1SDaniel P. Berrange rc = -errno; 999baacf047SPaolo Bonzini } 1000baacf047SPaolo Bonzini } while (rc == -EINTR); 1001baacf047SPaolo Bonzini 1002baacf047SPaolo Bonzini if (rc < 0) { 1003dfc00eb7SDaniel P. Berrangé error_setg_errno(errp, -rc, "Failed to connect to '%s'", 1004ad9579aaSDaniel P. Berrange saddr->path); 1005ad9579aaSDaniel P. Berrange goto err; 1006baacf047SPaolo Bonzini } 1007baacf047SPaolo Bonzini 1008baacf047SPaolo Bonzini return sock; 1009ad9579aaSDaniel P. Berrange 1010ad9579aaSDaniel P. Berrange err: 1011ad9579aaSDaniel P. Berrange close(sock); 1012ad9579aaSDaniel P. Berrange return -1; 1013baacf047SPaolo Bonzini } 1014baacf047SPaolo Bonzini 1015baacf047SPaolo Bonzini #else 1016baacf047SPaolo Bonzini 10171856835dSDaniel P. Berrange static int unix_listen_saddr(UnixSocketAddress *saddr, 1018e5b6353cSJuan Quintela int num, 10191856835dSDaniel P. Berrange Error **errp) 1020baacf047SPaolo Bonzini { 1021baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 1022baacf047SPaolo Bonzini errno = ENOTSUP; 1023baacf047SPaolo Bonzini return -1; 1024baacf047SPaolo Bonzini } 1025baacf047SPaolo Bonzini 1026b2587932SCao jin static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp) 1027baacf047SPaolo Bonzini { 1028baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 1029baacf047SPaolo Bonzini errno = ENOTSUP; 1030baacf047SPaolo Bonzini return -1; 1031baacf047SPaolo Bonzini } 1032baacf047SPaolo Bonzini #endif 1033baacf047SPaolo Bonzini 1034baacf047SPaolo Bonzini /* compatibility wrapper */ 103562473511SDaniel P. Berrange int unix_listen(const char *str, Error **errp) 1036baacf047SPaolo Bonzini { 10371856835dSDaniel P. Berrange UnixSocketAddress *saddr; 1038caf88d74SMarc-André Lureau int sock; 1039baacf047SPaolo Bonzini 10401856835dSDaniel P. Berrange saddr = g_new0(UnixSocketAddress, 1); 10411856835dSDaniel P. Berrange saddr->path = g_strdup(str); 1042e5b6353cSJuan Quintela sock = unix_listen_saddr(saddr, 1, errp); 10431856835dSDaniel P. Berrange qapi_free_UnixSocketAddress(saddr); 1044baacf047SPaolo Bonzini return sock; 1045baacf047SPaolo Bonzini } 1046baacf047SPaolo Bonzini 1047baacf047SPaolo Bonzini int unix_connect(const char *path, Error **errp) 1048baacf047SPaolo Bonzini { 10492942e420SDaniel P. Berrange UnixSocketAddress *saddr; 1050baacf047SPaolo Bonzini int sock; 1051baacf047SPaolo Bonzini 10522942e420SDaniel P. Berrange saddr = g_new0(UnixSocketAddress, 1); 10532942e420SDaniel P. Berrange saddr->path = g_strdup(path); 1054b2587932SCao jin sock = unix_connect_saddr(saddr, errp); 10552942e420SDaniel P. Berrange qapi_free_UnixSocketAddress(saddr); 1056baacf047SPaolo Bonzini return sock; 1057baacf047SPaolo Bonzini } 1058baacf047SPaolo Bonzini 1059baacf047SPaolo Bonzini 1060bd269ebcSMarkus Armbruster SocketAddress *socket_parse(const char *str, Error **errp) 1061baacf047SPaolo Bonzini { 1062bd269ebcSMarkus Armbruster SocketAddress *addr; 1063baacf047SPaolo Bonzini 1064bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1065baacf047SPaolo Bonzini if (strstart(str, "unix:", NULL)) { 1066baacf047SPaolo Bonzini if (str[5] == '\0') { 1067312fd5f2SMarkus Armbruster error_setg(errp, "invalid Unix socket address"); 1068baacf047SPaolo Bonzini goto fail; 1069baacf047SPaolo Bonzini } else { 1070bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 1071bd269ebcSMarkus Armbruster addr->u.q_unix.path = g_strdup(str + 5); 1072baacf047SPaolo Bonzini } 1073baacf047SPaolo Bonzini } else if (strstart(str, "fd:", NULL)) { 1074baacf047SPaolo Bonzini if (str[3] == '\0') { 1075312fd5f2SMarkus Armbruster error_setg(errp, "invalid file descriptor address"); 1076baacf047SPaolo Bonzini goto fail; 1077baacf047SPaolo Bonzini } else { 1078bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_FD; 1079bd269ebcSMarkus Armbruster addr->u.fd.str = g_strdup(str + 3); 1080baacf047SPaolo Bonzini } 10816a02c806SStefan Hajnoczi } else if (strstart(str, "vsock:", NULL)) { 1082bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1083bd269ebcSMarkus Armbruster if (vsock_parse(&addr->u.vsock, str + strlen("vsock:"), errp)) { 10846a02c806SStefan Hajnoczi goto fail; 10856a02c806SStefan Hajnoczi } 1086baacf047SPaolo Bonzini } else { 1087bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1088bd269ebcSMarkus Armbruster if (inet_parse(&addr->u.inet, str, errp)) { 1089baacf047SPaolo Bonzini goto fail; 1090baacf047SPaolo Bonzini } 1091baacf047SPaolo Bonzini } 1092baacf047SPaolo Bonzini return addr; 1093baacf047SPaolo Bonzini 1094baacf047SPaolo Bonzini fail: 1095bd269ebcSMarkus Armbruster qapi_free_SocketAddress(addr); 1096baacf047SPaolo Bonzini return NULL; 1097baacf047SPaolo Bonzini } 1098baacf047SPaolo Bonzini 1099e5b6353cSJuan Quintela static int socket_get_fd(const char *fdstr, int num, Error **errp) 110030bdb3c5SDaniel P. Berrange { 1101947e4744SKevin Wolf Monitor *cur_mon = monitor_cur(); 11021723d6b1SDaniel P. Berrange int fd; 1103e5b6353cSJuan Quintela if (num != 1) { 1104e5b6353cSJuan Quintela error_setg_errno(errp, EINVAL, "socket_get_fd: too many connections"); 1105e5b6353cSJuan Quintela return -1; 1106e5b6353cSJuan Quintela } 11071723d6b1SDaniel P. Berrange if (cur_mon) { 11081723d6b1SDaniel P. Berrange fd = monitor_get_fd(cur_mon, fdstr, errp); 110930bdb3c5SDaniel P. Berrange if (fd < 0) { 111030bdb3c5SDaniel P. Berrange return -1; 111130bdb3c5SDaniel P. Berrange } 11121723d6b1SDaniel P. Berrange } else { 11131723d6b1SDaniel P. Berrange if (qemu_strtoi(fdstr, NULL, 10, &fd) < 0) { 11141723d6b1SDaniel P. Berrange error_setg_errno(errp, errno, 11151723d6b1SDaniel P. Berrange "Unable to parse FD number %s", 11161723d6b1SDaniel P. Berrange fdstr); 11171723d6b1SDaniel P. Berrange return -1; 11181723d6b1SDaniel P. Berrange } 11191723d6b1SDaniel P. Berrange } 112030bdb3c5SDaniel P. Berrange if (!fd_is_socket(fd)) { 112130bdb3c5SDaniel P. Berrange error_setg(errp, "File descriptor '%s' is not a socket", fdstr); 112230bdb3c5SDaniel P. Berrange close(fd); 112330bdb3c5SDaniel P. Berrange return -1; 112430bdb3c5SDaniel P. Berrange } 112530bdb3c5SDaniel P. Berrange return fd; 112630bdb3c5SDaniel P. Berrange } 112730bdb3c5SDaniel P. Berrange 1128b2587932SCao jin int socket_connect(SocketAddress *addr, Error **errp) 1129baacf047SPaolo Bonzini { 1130baacf047SPaolo Bonzini int fd; 1131baacf047SPaolo Bonzini 11322d32addaSEric Blake switch (addr->type) { 1133bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1134b2587932SCao jin fd = inet_connect_saddr(&addr->u.inet, errp); 1135baacf047SPaolo Bonzini break; 1136baacf047SPaolo Bonzini 1137bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_UNIX: 1138b2587932SCao jin fd = unix_connect_saddr(&addr->u.q_unix, errp); 1139baacf047SPaolo Bonzini break; 1140baacf047SPaolo Bonzini 1141bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_FD: 1142e5b6353cSJuan Quintela fd = socket_get_fd(addr->u.fd.str, 1, errp); 1143baacf047SPaolo Bonzini break; 1144baacf047SPaolo Bonzini 1145bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_VSOCK: 1146b2587932SCao jin fd = vsock_connect_saddr(&addr->u.vsock, errp); 11476a02c806SStefan Hajnoczi break; 11486a02c806SStefan Hajnoczi 1149baacf047SPaolo Bonzini default: 1150baacf047SPaolo Bonzini abort(); 1151baacf047SPaolo Bonzini } 1152baacf047SPaolo Bonzini return fd; 1153baacf047SPaolo Bonzini } 1154baacf047SPaolo Bonzini 1155e5b6353cSJuan Quintela int socket_listen(SocketAddress *addr, int num, Error **errp) 1156baacf047SPaolo Bonzini { 1157baacf047SPaolo Bonzini int fd; 1158baacf047SPaolo Bonzini 1159e5b6353cSJuan Quintela trace_socket_listen(num); 11602d32addaSEric Blake switch (addr->type) { 1161bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1162e5b6353cSJuan Quintela fd = inet_listen_saddr(&addr->u.inet, 0, num, errp); 1163baacf047SPaolo Bonzini break; 1164baacf047SPaolo Bonzini 1165bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_UNIX: 1166e5b6353cSJuan Quintela fd = unix_listen_saddr(&addr->u.q_unix, num, errp); 1167baacf047SPaolo Bonzini break; 1168baacf047SPaolo Bonzini 1169bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_FD: 1170e5b6353cSJuan Quintela fd = socket_get_fd(addr->u.fd.str, num, errp); 1171baacf047SPaolo Bonzini break; 1172baacf047SPaolo Bonzini 1173bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_VSOCK: 1174e5b6353cSJuan Quintela fd = vsock_listen_saddr(&addr->u.vsock, num, errp); 11756a02c806SStefan Hajnoczi break; 11766a02c806SStefan Hajnoczi 1177baacf047SPaolo Bonzini default: 1178baacf047SPaolo Bonzini abort(); 1179baacf047SPaolo Bonzini } 1180baacf047SPaolo Bonzini return fd; 1181baacf047SPaolo Bonzini } 1182baacf047SPaolo Bonzini 118374b6ce43SMarc-André Lureau void socket_listen_cleanup(int fd, Error **errp) 118474b6ce43SMarc-André Lureau { 1185bd269ebcSMarkus Armbruster SocketAddress *addr; 118674b6ce43SMarc-André Lureau 118774b6ce43SMarc-André Lureau addr = socket_local_address(fd, errp); 11882d7ad7c0SDaniel P. Berrange if (!addr) { 11892d7ad7c0SDaniel P. Berrange return; 11902d7ad7c0SDaniel P. Berrange } 119174b6ce43SMarc-André Lureau 1192bd269ebcSMarkus Armbruster if (addr->type == SOCKET_ADDRESS_TYPE_UNIX 1193bd269ebcSMarkus Armbruster && addr->u.q_unix.path) { 1194bd269ebcSMarkus Armbruster if (unlink(addr->u.q_unix.path) < 0 && errno != ENOENT) { 119574b6ce43SMarc-André Lureau error_setg_errno(errp, errno, 119674b6ce43SMarc-André Lureau "Failed to unlink socket %s", 1197bd269ebcSMarkus Armbruster addr->u.q_unix.path); 119874b6ce43SMarc-André Lureau } 119974b6ce43SMarc-André Lureau } 120074b6ce43SMarc-André Lureau 1201bd269ebcSMarkus Armbruster qapi_free_SocketAddress(addr); 120274b6ce43SMarc-André Lureau } 120374b6ce43SMarc-André Lureau 1204bd269ebcSMarkus Armbruster int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp) 12053ecc059dSGerd Hoffmann { 12063ecc059dSGerd Hoffmann int fd; 12073ecc059dSGerd Hoffmann 1208ca0b64e5SMarkus Armbruster /* 1209bd269ebcSMarkus Armbruster * TODO SOCKET_ADDRESS_TYPE_FD when fd is AF_INET or AF_INET6 1210ca0b64e5SMarkus Armbruster * (although other address families can do SOCK_DGRAM, too) 1211ca0b64e5SMarkus Armbruster */ 12122d32addaSEric Blake switch (remote->type) { 1213bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1214bd269ebcSMarkus Armbruster fd = inet_dgram_saddr(&remote->u.inet, 1215bd269ebcSMarkus Armbruster local ? &local->u.inet : NULL, errp); 12163ecc059dSGerd Hoffmann break; 12173ecc059dSGerd Hoffmann 12183ecc059dSGerd Hoffmann default: 12193ecc059dSGerd Hoffmann error_setg(errp, "socket type unsupported for datagram"); 12207a5b6af1SGerd Hoffmann fd = -1; 12213ecc059dSGerd Hoffmann } 12223ecc059dSGerd Hoffmann return fd; 12233ecc059dSGerd Hoffmann } 122417c55decSDaniel P. Berrange 122517c55decSDaniel P. Berrange 1226bd269ebcSMarkus Armbruster static SocketAddress * 122717c55decSDaniel P. Berrange socket_sockaddr_to_address_inet(struct sockaddr_storage *sa, 122817c55decSDaniel P. Berrange socklen_t salen, 122917c55decSDaniel P. Berrange Error **errp) 123017c55decSDaniel P. Berrange { 123117c55decSDaniel P. Berrange char host[NI_MAXHOST]; 123217c55decSDaniel P. Berrange char serv[NI_MAXSERV]; 1233bd269ebcSMarkus Armbruster SocketAddress *addr; 12340399293eSEric Blake InetSocketAddress *inet; 123517c55decSDaniel P. Berrange int ret; 123617c55decSDaniel P. Berrange 123717c55decSDaniel P. Berrange ret = getnameinfo((struct sockaddr *)sa, salen, 123817c55decSDaniel P. Berrange host, sizeof(host), 123917c55decSDaniel P. Berrange serv, sizeof(serv), 124017c55decSDaniel P. Berrange NI_NUMERICHOST | NI_NUMERICSERV); 124117c55decSDaniel P. Berrange if (ret != 0) { 124217c55decSDaniel P. Berrange error_setg(errp, "Cannot format numeric socket address: %s", 124317c55decSDaniel P. Berrange gai_strerror(ret)); 124417c55decSDaniel P. Berrange return NULL; 124517c55decSDaniel P. Berrange } 124617c55decSDaniel P. Berrange 1247bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1248bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1249bd269ebcSMarkus Armbruster inet = &addr->u.inet; 12500399293eSEric Blake inet->host = g_strdup(host); 12510399293eSEric Blake inet->port = g_strdup(serv); 125217c55decSDaniel P. Berrange if (sa->ss_family == AF_INET) { 12530399293eSEric Blake inet->has_ipv4 = inet->ipv4 = true; 125417c55decSDaniel P. Berrange } else { 12550399293eSEric Blake inet->has_ipv6 = inet->ipv6 = true; 125617c55decSDaniel P. Berrange } 125717c55decSDaniel P. Berrange 125817c55decSDaniel P. Berrange return addr; 125917c55decSDaniel P. Berrange } 126017c55decSDaniel P. Berrange 126117c55decSDaniel P. Berrange 126217c55decSDaniel P. Berrange #ifndef WIN32 1263bd269ebcSMarkus Armbruster static SocketAddress * 126417c55decSDaniel P. Berrange socket_sockaddr_to_address_unix(struct sockaddr_storage *sa, 126517c55decSDaniel P. Berrange socklen_t salen, 126617c55decSDaniel P. Berrange Error **errp) 126717c55decSDaniel P. Berrange { 1268bd269ebcSMarkus Armbruster SocketAddress *addr; 126917c55decSDaniel P. Berrange struct sockaddr_un *su = (struct sockaddr_un *)sa; 127017c55decSDaniel P. Berrange 1271bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1272bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 1273*3b14b4ecSMarkus Armbruster #ifdef CONFIG_LINUX 1274*3b14b4ecSMarkus Armbruster if (!su->sun_path[0]) { 1275*3b14b4ecSMarkus Armbruster /* Linux abstract socket */ 1276*3b14b4ecSMarkus Armbruster addr->u.q_unix.path = g_strndup(su->sun_path + 1, 1277*3b14b4ecSMarkus Armbruster sizeof(su->sun_path) - 1); 1278*3b14b4ecSMarkus Armbruster addr->u.q_unix.has_abstract = true; 1279*3b14b4ecSMarkus Armbruster addr->u.q_unix.abstract = true; 1280*3b14b4ecSMarkus Armbruster addr->u.q_unix.has_tight = true; 1281*3b14b4ecSMarkus Armbruster addr->u.q_unix.tight = salen < sizeof(*su); 1282*3b14b4ecSMarkus Armbruster return addr; 128317c55decSDaniel P. Berrange } 1284*3b14b4ecSMarkus Armbruster #endif 128517c55decSDaniel P. Berrange 1286*3b14b4ecSMarkus Armbruster addr->u.q_unix.path = g_strndup(su->sun_path, sizeof(su->sun_path)); 128717c55decSDaniel P. Berrange return addr; 128817c55decSDaniel P. Berrange } 128917c55decSDaniel P. Berrange #endif /* WIN32 */ 129017c55decSDaniel P. Berrange 12916a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 1292bd269ebcSMarkus Armbruster static SocketAddress * 12936a02c806SStefan Hajnoczi socket_sockaddr_to_address_vsock(struct sockaddr_storage *sa, 12946a02c806SStefan Hajnoczi socklen_t salen, 12956a02c806SStefan Hajnoczi Error **errp) 12966a02c806SStefan Hajnoczi { 1297bd269ebcSMarkus Armbruster SocketAddress *addr; 12986a02c806SStefan Hajnoczi VsockSocketAddress *vaddr; 12996a02c806SStefan Hajnoczi struct sockaddr_vm *svm = (struct sockaddr_vm *)sa; 13006a02c806SStefan Hajnoczi 1301bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1302bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1303bd269ebcSMarkus Armbruster vaddr = &addr->u.vsock; 13046a02c806SStefan Hajnoczi vaddr->cid = g_strdup_printf("%u", svm->svm_cid); 13056a02c806SStefan Hajnoczi vaddr->port = g_strdup_printf("%u", svm->svm_port); 13066a02c806SStefan Hajnoczi 13076a02c806SStefan Hajnoczi return addr; 13086a02c806SStefan Hajnoczi } 13096a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 13106a02c806SStefan Hajnoczi 1311bd269ebcSMarkus Armbruster SocketAddress * 131217c55decSDaniel P. Berrange socket_sockaddr_to_address(struct sockaddr_storage *sa, 131317c55decSDaniel P. Berrange socklen_t salen, 131417c55decSDaniel P. Berrange Error **errp) 131517c55decSDaniel P. Berrange { 131617c55decSDaniel P. Berrange switch (sa->ss_family) { 131717c55decSDaniel P. Berrange case AF_INET: 131817c55decSDaniel P. Berrange case AF_INET6: 131917c55decSDaniel P. Berrange return socket_sockaddr_to_address_inet(sa, salen, errp); 132017c55decSDaniel P. Berrange 132117c55decSDaniel P. Berrange #ifndef WIN32 132217c55decSDaniel P. Berrange case AF_UNIX: 132317c55decSDaniel P. Berrange return socket_sockaddr_to_address_unix(sa, salen, errp); 132417c55decSDaniel P. Berrange #endif /* WIN32 */ 132517c55decSDaniel P. Berrange 13266a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 13276a02c806SStefan Hajnoczi case AF_VSOCK: 13286a02c806SStefan Hajnoczi return socket_sockaddr_to_address_vsock(sa, salen, errp); 13296a02c806SStefan Hajnoczi #endif 13306a02c806SStefan Hajnoczi 133117c55decSDaniel P. Berrange default: 133217c55decSDaniel P. Berrange error_setg(errp, "socket family %d unsupported", 133317c55decSDaniel P. Berrange sa->ss_family); 133417c55decSDaniel P. Berrange return NULL; 133517c55decSDaniel P. Berrange } 133617c55decSDaniel P. Berrange return 0; 133717c55decSDaniel P. Berrange } 133817c55decSDaniel P. Berrange 133917c55decSDaniel P. Berrange 1340bd269ebcSMarkus Armbruster SocketAddress *socket_local_address(int fd, Error **errp) 134117c55decSDaniel P. Berrange { 134217c55decSDaniel P. Berrange struct sockaddr_storage ss; 134317c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 134417c55decSDaniel P. Berrange 134517c55decSDaniel P. Berrange if (getsockname(fd, (struct sockaddr *)&ss, &sslen) < 0) { 1346b16a44e1SDaniel P. Berrange error_setg_errno(errp, errno, "%s", 134717c55decSDaniel P. Berrange "Unable to query local socket address"); 134817c55decSDaniel P. Berrange return NULL; 134917c55decSDaniel P. Berrange } 135017c55decSDaniel P. Berrange 135117c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 135217c55decSDaniel P. Berrange } 135317c55decSDaniel P. Berrange 135417c55decSDaniel P. Berrange 1355bd269ebcSMarkus Armbruster SocketAddress *socket_remote_address(int fd, Error **errp) 135617c55decSDaniel P. Berrange { 135717c55decSDaniel P. Berrange struct sockaddr_storage ss; 135817c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 135917c55decSDaniel P. Berrange 136017c55decSDaniel P. Berrange if (getpeername(fd, (struct sockaddr *)&ss, &sslen) < 0) { 1361b16a44e1SDaniel P. Berrange error_setg_errno(errp, errno, "%s", 136217c55decSDaniel P. Berrange "Unable to query remote socket address"); 136317c55decSDaniel P. Berrange return NULL; 136417c55decSDaniel P. Berrange } 136517c55decSDaniel P. Berrange 136617c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 136717c55decSDaniel P. Berrange } 13682a8e21c7SDaniel P. Berrange 1369216411b8SMarkus Armbruster 1370bd269ebcSMarkus Armbruster SocketAddress *socket_address_flatten(SocketAddressLegacy *addr_legacy) 1371bd269ebcSMarkus Armbruster { 1372fc0f0059SMarkus Armbruster SocketAddress *addr; 1373bd269ebcSMarkus Armbruster 1374bd269ebcSMarkus Armbruster if (!addr_legacy) { 1375bd269ebcSMarkus Armbruster return NULL; 1376bd269ebcSMarkus Armbruster } 1377bd269ebcSMarkus Armbruster 1378fc0f0059SMarkus Armbruster addr = g_new(SocketAddress, 1); 1379fc0f0059SMarkus Armbruster 1380bd269ebcSMarkus Armbruster switch (addr_legacy->type) { 1381bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_INET: 1382bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1383bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(InetSocketAddress, &addr->u.inet, 1384bd269ebcSMarkus Armbruster addr_legacy->u.inet.data); 1385bd269ebcSMarkus Armbruster break; 1386bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_UNIX: 1387bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 1388bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(UnixSocketAddress, &addr->u.q_unix, 1389bd269ebcSMarkus Armbruster addr_legacy->u.q_unix.data); 1390bd269ebcSMarkus Armbruster break; 1391bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_VSOCK: 1392bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1393bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(VsockSocketAddress, &addr->u.vsock, 1394bd269ebcSMarkus Armbruster addr_legacy->u.vsock.data); 1395bd269ebcSMarkus Armbruster break; 1396bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_FD: 1397bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_FD; 1398bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(String, &addr->u.fd, addr_legacy->u.fd.data); 1399bd269ebcSMarkus Armbruster break; 1400bd269ebcSMarkus Armbruster default: 1401bd269ebcSMarkus Armbruster abort(); 1402bd269ebcSMarkus Armbruster } 1403bd269ebcSMarkus Armbruster 1404bd269ebcSMarkus Armbruster return addr; 1405bd269ebcSMarkus Armbruster } 1406