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 15239f80521SKnut Omang static int create_fast_reuse_socket(struct addrinfo *e) 15339f80521SKnut Omang { 15439f80521SKnut Omang int slisten = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol); 15539f80521SKnut Omang if (slisten < 0) { 15639f80521SKnut Omang return -1; 15739f80521SKnut Omang } 15839f80521SKnut Omang socket_set_fast_reuse(slisten); 15939f80521SKnut Omang return slisten; 16039f80521SKnut Omang } 16139f80521SKnut Omang 16289382c3dSKnut Omang static int try_bind(int socket, InetSocketAddress *saddr, struct addrinfo *e) 16389382c3dSKnut Omang { 16489382c3dSKnut Omang #ifndef IPV6_V6ONLY 16589382c3dSKnut Omang return bind(socket, e->ai_addr, e->ai_addrlen); 16689382c3dSKnut Omang #else 16789382c3dSKnut Omang /* 16889382c3dSKnut Omang * Deals with first & last cases in matrix in comment 16989382c3dSKnut Omang * for inet_ai_family_from_address(). 17089382c3dSKnut Omang */ 17189382c3dSKnut Omang int v6only = 17289382c3dSKnut Omang ((!saddr->has_ipv4 && !saddr->has_ipv6) || 17389382c3dSKnut Omang (saddr->has_ipv4 && saddr->ipv4 && 17489382c3dSKnut Omang saddr->has_ipv6 && saddr->ipv6)) ? 0 : 1; 17589382c3dSKnut Omang int stat; 17689382c3dSKnut Omang 17789382c3dSKnut Omang rebind: 17889382c3dSKnut Omang if (e->ai_family == PF_INET6) { 17989382c3dSKnut Omang qemu_setsockopt(socket, IPPROTO_IPV6, IPV6_V6ONLY, &v6only, 18089382c3dSKnut Omang sizeof(v6only)); 18189382c3dSKnut Omang } 18289382c3dSKnut Omang 18389382c3dSKnut Omang stat = bind(socket, e->ai_addr, e->ai_addrlen); 18489382c3dSKnut Omang if (!stat) { 18589382c3dSKnut Omang return 0; 18689382c3dSKnut Omang } 18789382c3dSKnut Omang 18889382c3dSKnut Omang /* If we got EADDRINUSE from an IPv6 bind & v6only is unset, 18989382c3dSKnut Omang * it could be that the IPv4 port is already claimed, so retry 19089382c3dSKnut Omang * with v6only set 19189382c3dSKnut Omang */ 19289382c3dSKnut Omang if (e->ai_family == PF_INET6 && errno == EADDRINUSE && !v6only) { 19389382c3dSKnut Omang v6only = 1; 19489382c3dSKnut Omang goto rebind; 19589382c3dSKnut Omang } 19689382c3dSKnut Omang return stat; 19789382c3dSKnut Omang #endif 19889382c3dSKnut Omang } 19989382c3dSKnut Omang 2001856835dSDaniel P. Berrange static int inet_listen_saddr(InetSocketAddress *saddr, 2011856835dSDaniel P. Berrange int port_offset, 2021856835dSDaniel P. Berrange bool update_addr, 2031856835dSDaniel P. Berrange Error **errp) 204baacf047SPaolo Bonzini { 205baacf047SPaolo Bonzini struct addrinfo ai,*res,*e; 206baacf047SPaolo Bonzini char port[33]; 207baacf047SPaolo Bonzini char uaddr[INET6_ADDRSTRLEN+1]; 208baacf047SPaolo Bonzini char uport[33]; 2099cf961bbSKnut Omang int rc, port_min, port_max, p; 210*10a7b7e6SDaniel P. Berrange int slisten = -1; 2119cf961bbSKnut Omang int saved_errno = 0; 2129cf961bbSKnut Omang bool socket_created = false; 2131856835dSDaniel P. Berrange Error *err = NULL; 214baacf047SPaolo Bonzini 215baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 2163de3d698SWolfgang Bumiller ai.ai_flags = AI_PASSIVE; 2176979a813SDaniel P. Berrange if (saddr->has_numeric && saddr->numeric) { 2186979a813SDaniel P. Berrange ai.ai_flags |= AI_NUMERICHOST | AI_NUMERICSERV; 2196979a813SDaniel P. Berrange } 2201856835dSDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(saddr, &err); 221baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 222baacf047SPaolo Bonzini 2231856835dSDaniel P. Berrange if (err) { 2241856835dSDaniel P. Berrange error_propagate(errp, err); 2251856835dSDaniel P. Berrange return -1; 2261856835dSDaniel P. Berrange } 2271856835dSDaniel P. Berrange 2281856835dSDaniel P. Berrange if (saddr->host == NULL) { 2290983f5e6SDaniel P. Berrange error_setg(errp, "host not specified"); 230baacf047SPaolo Bonzini return -1; 231baacf047SPaolo Bonzini } 2321856835dSDaniel P. Berrange if (saddr->port != NULL) { 2331856835dSDaniel P. Berrange pstrcpy(port, sizeof(port), saddr->port); 2340983f5e6SDaniel P. Berrange } else { 2350983f5e6SDaniel P. Berrange port[0] = '\0'; 2360983f5e6SDaniel P. Berrange } 237baacf047SPaolo Bonzini 238baacf047SPaolo Bonzini /* lookup */ 2398bc89127SGerd Hoffmann if (port_offset) { 2408bc89127SGerd Hoffmann unsigned long long baseport; 2410983f5e6SDaniel P. Berrange if (strlen(port) == 0) { 2420983f5e6SDaniel P. Berrange error_setg(errp, "port not specified"); 2430983f5e6SDaniel P. Berrange return -1; 2440983f5e6SDaniel P. Berrange } 2458bc89127SGerd Hoffmann if (parse_uint_full(port, &baseport, 10) < 0) { 2468bc89127SGerd Hoffmann error_setg(errp, "can't convert to a number: %s", port); 2478bc89127SGerd Hoffmann return -1; 2488bc89127SGerd Hoffmann } 2498bc89127SGerd Hoffmann if (baseport > 65535 || 2508bc89127SGerd Hoffmann baseport + port_offset > 65535) { 2518bc89127SGerd Hoffmann error_setg(errp, "port %s out of range", port); 2528bc89127SGerd Hoffmann return -1; 2538bc89127SGerd Hoffmann } 2548bc89127SGerd Hoffmann snprintf(port, sizeof(port), "%d", (int)baseport + port_offset); 2558bc89127SGerd Hoffmann } 2561856835dSDaniel P. Berrange rc = getaddrinfo(strlen(saddr->host) ? saddr->host : NULL, 2570983f5e6SDaniel P. Berrange strlen(port) ? port : NULL, &ai, &res); 258baacf047SPaolo Bonzini if (rc != 0) { 2591856835dSDaniel P. Berrange error_setg(errp, "address resolution failed for %s:%s: %s", 2601856835dSDaniel P. Berrange saddr->host, port, gai_strerror(rc)); 261baacf047SPaolo Bonzini return -1; 262baacf047SPaolo Bonzini } 263baacf047SPaolo Bonzini 2649cf961bbSKnut Omang /* create socket + bind/listen */ 265baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 266baacf047SPaolo Bonzini getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen, 267baacf047SPaolo Bonzini uaddr,INET6_ADDRSTRLEN,uport,32, 268baacf047SPaolo Bonzini NI_NUMERICHOST | NI_NUMERICSERV); 26939f80521SKnut Omang 270baacf047SPaolo Bonzini port_min = inet_getport(e); 2711856835dSDaniel P. Berrange port_max = saddr->has_to ? saddr->to + port_offset : port_min; 272baacf047SPaolo Bonzini for (p = port_min; p <= port_max; p++) { 273baacf047SPaolo Bonzini inet_setport(e, p); 274*10a7b7e6SDaniel P. Berrange 275*10a7b7e6SDaniel P. Berrange slisten = create_fast_reuse_socket(e); 276*10a7b7e6SDaniel P. Berrange if (slisten < 0) { 277*10a7b7e6SDaniel P. Berrange /* First time we expect we might fail to create the socket 278*10a7b7e6SDaniel P. Berrange * eg if 'e' has AF_INET6 but ipv6 kmod is not loaded. 279*10a7b7e6SDaniel P. Berrange * Later iterations should always succeed if first iteration 280*10a7b7e6SDaniel P. Berrange * worked though, so treat that as fatal. 281*10a7b7e6SDaniel P. Berrange */ 282*10a7b7e6SDaniel P. Berrange if (p == port_min) { 2839cf961bbSKnut Omang continue; 2849cf961bbSKnut Omang } else { 285*10a7b7e6SDaniel P. Berrange error_setg_errno(errp, errno, 286*10a7b7e6SDaniel P. Berrange "Failed to recreate failed listening socket"); 2879cf961bbSKnut Omang goto listen_failed; 2889cf961bbSKnut Omang } 2899cf961bbSKnut Omang } 290*10a7b7e6SDaniel P. Berrange socket_created = true; 291*10a7b7e6SDaniel P. Berrange 292*10a7b7e6SDaniel P. Berrange rc = try_bind(slisten, saddr, e); 293*10a7b7e6SDaniel P. Berrange if (rc < 0) { 294*10a7b7e6SDaniel P. Berrange if (errno != EADDRINUSE) { 295*10a7b7e6SDaniel P. Berrange error_setg_errno(errp, errno, "Failed to bind socket"); 296*10a7b7e6SDaniel P. Berrange goto listen_failed; 297*10a7b7e6SDaniel P. Berrange } 298*10a7b7e6SDaniel P. Berrange } else { 2999cf961bbSKnut Omang if (!listen(slisten, 1)) { 3009cf961bbSKnut Omang goto listen_ok; 3019cf961bbSKnut Omang } 3029cf961bbSKnut Omang if (errno != EADDRINUSE) { 3039cf961bbSKnut Omang error_setg_errno(errp, errno, "Failed to listen on socket"); 3049cf961bbSKnut Omang goto listen_failed; 3059cf961bbSKnut Omang } 306*10a7b7e6SDaniel P. Berrange } 3079cf961bbSKnut Omang /* Someone else managed to bind to the same port and beat us 3089cf961bbSKnut Omang * to listen on it! Socket semantics does not allow us to 3099cf961bbSKnut Omang * recover from this situation, so we need to recreate the 3109cf961bbSKnut Omang * socket to allow bind attempts for subsequent ports: 3119cf961bbSKnut Omang */ 3129cf961bbSKnut Omang closesocket(slisten); 313*10a7b7e6SDaniel P. Berrange slisten = -1; 314baacf047SPaolo Bonzini } 315baacf047SPaolo Bonzini } 3169cf961bbSKnut Omang error_setg_errno(errp, errno, 3179cf961bbSKnut Omang socket_created ? 3189cf961bbSKnut Omang "Failed to find an available port" : 3199cf961bbSKnut Omang "Failed to create a socket"); 3209cf961bbSKnut Omang listen_failed: 3219cf961bbSKnut Omang saved_errno = errno; 3229cf961bbSKnut Omang if (slisten >= 0) { 323baacf047SPaolo Bonzini closesocket(slisten); 324baacf047SPaolo Bonzini } 325baacf047SPaolo Bonzini freeaddrinfo(res); 3269cf961bbSKnut Omang errno = saved_errno; 327baacf047SPaolo Bonzini return -1; 328baacf047SPaolo Bonzini 3299cf961bbSKnut Omang listen_ok: 3301856835dSDaniel P. Berrange if (update_addr) { 3311856835dSDaniel P. Berrange g_free(saddr->host); 3321856835dSDaniel P. Berrange saddr->host = g_strdup(uaddr); 3331856835dSDaniel P. Berrange g_free(saddr->port); 3341856835dSDaniel P. Berrange saddr->port = g_strdup_printf("%d", 3351856835dSDaniel P. Berrange inet_getport(e) - port_offset); 3361856835dSDaniel P. Berrange saddr->has_ipv6 = saddr->ipv6 = e->ai_family == PF_INET6; 3371856835dSDaniel P. Berrange saddr->has_ipv4 = saddr->ipv4 = e->ai_family != PF_INET6; 3381856835dSDaniel P. Berrange } 339baacf047SPaolo Bonzini freeaddrinfo(res); 340baacf047SPaolo Bonzini return slisten; 341baacf047SPaolo Bonzini } 342baacf047SPaolo Bonzini 343baacf047SPaolo Bonzini #ifdef _WIN32 344baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 345baacf047SPaolo Bonzini ((rc) == -EINPROGRESS || (rc) == -EWOULDBLOCK || (rc) == -WSAEALREADY) 346baacf047SPaolo Bonzini #else 347baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 348baacf047SPaolo Bonzini ((rc) == -EINPROGRESS) 349baacf047SPaolo Bonzini #endif 350baacf047SPaolo Bonzini 351b2587932SCao jin static int inet_connect_addr(struct addrinfo *addr, Error **errp); 352baacf047SPaolo Bonzini 353b2587932SCao jin static int inet_connect_addr(struct addrinfo *addr, Error **errp) 354baacf047SPaolo Bonzini { 355baacf047SPaolo Bonzini int sock, rc; 356baacf047SPaolo Bonzini 357baacf047SPaolo Bonzini sock = qemu_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol); 358baacf047SPaolo Bonzini if (sock < 0) { 359235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 360baacf047SPaolo Bonzini return -1; 361baacf047SPaolo Bonzini } 36204fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 363b2587932SCao jin 364baacf047SPaolo Bonzini /* connect to peer */ 365baacf047SPaolo Bonzini do { 366baacf047SPaolo Bonzini rc = 0; 367baacf047SPaolo Bonzini if (connect(sock, addr->ai_addr, addr->ai_addrlen) < 0) { 368b16a44e1SDaniel P. Berrange rc = -errno; 369baacf047SPaolo Bonzini } 370baacf047SPaolo Bonzini } while (rc == -EINTR); 371baacf047SPaolo Bonzini 372b2587932SCao jin if (rc < 0) { 373235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 374baacf047SPaolo Bonzini closesocket(sock); 375baacf047SPaolo Bonzini return -1; 376baacf047SPaolo Bonzini } 377b2587932SCao jin 378baacf047SPaolo Bonzini return sock; 379baacf047SPaolo Bonzini } 380baacf047SPaolo Bonzini 3812942e420SDaniel P. Berrange static struct addrinfo *inet_parse_connect_saddr(InetSocketAddress *saddr, 3822942e420SDaniel P. Berrange Error **errp) 383baacf047SPaolo Bonzini { 384baacf047SPaolo Bonzini struct addrinfo ai, *res; 385baacf047SPaolo Bonzini int rc; 3862942e420SDaniel P. Berrange Error *err = NULL; 387340849a9SDaniel P. Berrange static int useV4Mapped = 1; 388baacf047SPaolo Bonzini 389baacf047SPaolo Bonzini memset(&ai, 0, sizeof(ai)); 390baacf047SPaolo Bonzini 391340849a9SDaniel P. Berrange ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG; 392340849a9SDaniel P. Berrange if (atomic_read(&useV4Mapped)) { 393340849a9SDaniel P. Berrange ai.ai_flags |= AI_V4MAPPED; 394340849a9SDaniel P. Berrange } 3952942e420SDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(saddr, &err); 396baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 397baacf047SPaolo Bonzini 3982942e420SDaniel P. Berrange if (err) { 3992942e420SDaniel P. Berrange error_propagate(errp, err); 4002942e420SDaniel P. Berrange return NULL; 4012942e420SDaniel P. Berrange } 4022942e420SDaniel P. Berrange 4032942e420SDaniel P. Berrange if (saddr->host == NULL || saddr->port == NULL) { 404baacf047SPaolo Bonzini error_setg(errp, "host and/or port not specified"); 405baacf047SPaolo Bonzini return NULL; 406baacf047SPaolo Bonzini } 407baacf047SPaolo Bonzini 408baacf047SPaolo Bonzini /* lookup */ 4092942e420SDaniel P. Berrange rc = getaddrinfo(saddr->host, saddr->port, &ai, &res); 410340849a9SDaniel P. Berrange 411340849a9SDaniel P. Berrange /* At least FreeBSD and OS-X 10.6 declare AI_V4MAPPED but 412340849a9SDaniel P. Berrange * then don't implement it in their getaddrinfo(). Detect 413340849a9SDaniel P. Berrange * this and retry without the flag since that's preferrable 414340849a9SDaniel P. Berrange * to a fatal error 415340849a9SDaniel P. Berrange */ 416340849a9SDaniel P. Berrange if (rc == EAI_BADFLAGS && 417340849a9SDaniel P. Berrange (ai.ai_flags & AI_V4MAPPED)) { 418340849a9SDaniel P. Berrange atomic_set(&useV4Mapped, 0); 419340849a9SDaniel P. Berrange ai.ai_flags &= ~AI_V4MAPPED; 420340849a9SDaniel P. Berrange rc = getaddrinfo(saddr->host, saddr->port, &ai, &res); 421340849a9SDaniel P. Berrange } 422baacf047SPaolo Bonzini if (rc != 0) { 4232942e420SDaniel P. Berrange error_setg(errp, "address resolution failed for %s:%s: %s", 4242942e420SDaniel P. Berrange saddr->host, saddr->port, gai_strerror(rc)); 425baacf047SPaolo Bonzini return NULL; 426baacf047SPaolo Bonzini } 427baacf047SPaolo Bonzini return res; 428baacf047SPaolo Bonzini } 429baacf047SPaolo Bonzini 430baacf047SPaolo Bonzini /** 431baacf047SPaolo Bonzini * Create a socket and connect it to an address. 432baacf047SPaolo Bonzini * 4332942e420SDaniel P. Berrange * @saddr: Inet socket address specification 434baacf047SPaolo Bonzini * @errp: set on error 435baacf047SPaolo Bonzini * 436baacf047SPaolo Bonzini * Returns: -1 on error, file descriptor on success. 437baacf047SPaolo Bonzini */ 438b2587932SCao jin int inet_connect_saddr(InetSocketAddress *saddr, Error **errp) 439baacf047SPaolo Bonzini { 4403f9286b7SMarkus Armbruster Error *local_err = NULL; 441baacf047SPaolo Bonzini struct addrinfo *res, *e; 442baacf047SPaolo Bonzini int sock = -1; 443baacf047SPaolo Bonzini 4442942e420SDaniel P. Berrange res = inet_parse_connect_saddr(saddr, errp); 445baacf047SPaolo Bonzini if (!res) { 446baacf047SPaolo Bonzini return -1; 447baacf047SPaolo Bonzini } 448baacf047SPaolo Bonzini 449baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 4503f9286b7SMarkus Armbruster error_free(local_err); 4513f9286b7SMarkus Armbruster local_err = NULL; 452b2587932SCao jin sock = inet_connect_addr(e, &local_err); 4533f9286b7SMarkus Armbruster if (sock >= 0) { 454baacf047SPaolo Bonzini break; 455baacf047SPaolo Bonzini } 456baacf047SPaolo Bonzini } 4573f9286b7SMarkus Armbruster 4583f9286b7SMarkus Armbruster if (sock < 0) { 4593f9286b7SMarkus Armbruster error_propagate(errp, local_err); 4603f9286b7SMarkus Armbruster } 461b2587932SCao jin 462baacf047SPaolo Bonzini freeaddrinfo(res); 463baacf047SPaolo Bonzini return sock; 464baacf047SPaolo Bonzini } 465baacf047SPaolo Bonzini 4668b39910eSDaniel P. Berrange static int inet_dgram_saddr(InetSocketAddress *sraddr, 4678b39910eSDaniel P. Berrange InetSocketAddress *sladdr, 4688b39910eSDaniel P. Berrange Error **errp) 469baacf047SPaolo Bonzini { 470baacf047SPaolo Bonzini struct addrinfo ai, *peer = NULL, *local = NULL; 471baacf047SPaolo Bonzini const char *addr; 472baacf047SPaolo Bonzini const char *port; 473baacf047SPaolo Bonzini int sock = -1, rc; 4748b39910eSDaniel P. Berrange Error *err = NULL; 475baacf047SPaolo Bonzini 476baacf047SPaolo Bonzini /* lookup peer addr */ 477baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 4783de3d698SWolfgang Bumiller ai.ai_flags = AI_CANONNAME | AI_V4MAPPED | AI_ADDRCONFIG; 4798b39910eSDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(sraddr, &err); 480baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 481baacf047SPaolo Bonzini 4828b39910eSDaniel P. Berrange if (err) { 4838b39910eSDaniel P. Berrange error_propagate(errp, err); 48458c652c0SPaolo Bonzini goto err; 4858b39910eSDaniel P. Berrange } 4868b39910eSDaniel P. Berrange 4878b39910eSDaniel P. Berrange addr = sraddr->host; 4888b39910eSDaniel P. Berrange port = sraddr->port; 489baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 490baacf047SPaolo Bonzini addr = "localhost"; 491baacf047SPaolo Bonzini } 492baacf047SPaolo Bonzini if (port == NULL || strlen(port) == 0) { 493baacf047SPaolo Bonzini error_setg(errp, "remote port not specified"); 49458c652c0SPaolo Bonzini goto err; 495baacf047SPaolo Bonzini } 496baacf047SPaolo Bonzini 4979cd1883cSCao jin if ((rc = getaddrinfo(addr, port, &ai, &peer)) != 0) { 498baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 499baacf047SPaolo Bonzini gai_strerror(rc)); 50058c652c0SPaolo Bonzini goto err; 501baacf047SPaolo Bonzini } 502baacf047SPaolo Bonzini 503baacf047SPaolo Bonzini /* lookup local addr */ 504baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 505baacf047SPaolo Bonzini ai.ai_flags = AI_PASSIVE; 506baacf047SPaolo Bonzini ai.ai_family = peer->ai_family; 507baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 508baacf047SPaolo Bonzini 5098b39910eSDaniel P. Berrange if (sladdr) { 5108b39910eSDaniel P. Berrange addr = sladdr->host; 5118b39910eSDaniel P. Berrange port = sladdr->port; 512baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 513baacf047SPaolo Bonzini addr = NULL; 514baacf047SPaolo Bonzini } 5158b39910eSDaniel P. Berrange if (!port || strlen(port) == 0) { 516baacf047SPaolo Bonzini port = "0"; 5178b39910eSDaniel P. Berrange } 5188b39910eSDaniel P. Berrange } else { 5198b39910eSDaniel P. Berrange addr = NULL; 5208b39910eSDaniel P. Berrange port = "0"; 5218b39910eSDaniel P. Berrange } 522baacf047SPaolo Bonzini 5239cd1883cSCao jin if ((rc = getaddrinfo(addr, port, &ai, &local)) != 0) { 524baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 525baacf047SPaolo Bonzini gai_strerror(rc)); 526baacf047SPaolo Bonzini goto err; 527baacf047SPaolo Bonzini } 528baacf047SPaolo Bonzini 529baacf047SPaolo Bonzini /* create socket */ 530baacf047SPaolo Bonzini sock = qemu_socket(peer->ai_family, peer->ai_socktype, peer->ai_protocol); 531baacf047SPaolo Bonzini if (sock < 0) { 532235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 533baacf047SPaolo Bonzini goto err; 534baacf047SPaolo Bonzini } 53504fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 536baacf047SPaolo Bonzini 537baacf047SPaolo Bonzini /* bind socket */ 538baacf047SPaolo Bonzini if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) { 539235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 540baacf047SPaolo Bonzini goto err; 541baacf047SPaolo Bonzini } 542baacf047SPaolo Bonzini 543baacf047SPaolo Bonzini /* connect to peer */ 544baacf047SPaolo Bonzini if (connect(sock,peer->ai_addr,peer->ai_addrlen) < 0) { 545235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 546baacf047SPaolo Bonzini goto err; 547baacf047SPaolo Bonzini } 548baacf047SPaolo Bonzini 549baacf047SPaolo Bonzini freeaddrinfo(local); 550baacf047SPaolo Bonzini freeaddrinfo(peer); 551baacf047SPaolo Bonzini return sock; 552baacf047SPaolo Bonzini 553baacf047SPaolo Bonzini err: 55426015051SCao jin if (sock != -1) { 555baacf047SPaolo Bonzini closesocket(sock); 55626015051SCao jin } 55726015051SCao jin if (local) { 558baacf047SPaolo Bonzini freeaddrinfo(local); 55926015051SCao jin } 56026015051SCao jin if (peer) { 561baacf047SPaolo Bonzini freeaddrinfo(peer); 56226015051SCao jin } 56326015051SCao jin 564baacf047SPaolo Bonzini return -1; 565baacf047SPaolo Bonzini } 566baacf047SPaolo Bonzini 567baacf047SPaolo Bonzini /* compatibility wrapper */ 5680785bd7aSMarkus Armbruster int inet_parse(InetSocketAddress *addr, const char *str, Error **errp) 569baacf047SPaolo Bonzini { 570baacf047SPaolo Bonzini const char *optstr, *h; 57155a10996SKevin Wolf char host[65]; 572baacf047SPaolo Bonzini char port[33]; 573baacf047SPaolo Bonzini int to; 574baacf047SPaolo Bonzini int pos; 575baacf047SPaolo Bonzini 5760785bd7aSMarkus Armbruster memset(addr, 0, sizeof(*addr)); 577baacf047SPaolo Bonzini 578baacf047SPaolo Bonzini /* parse address */ 579baacf047SPaolo Bonzini if (str[0] == ':') { 580baacf047SPaolo Bonzini /* no host given */ 581baacf047SPaolo Bonzini host[0] = '\0'; 5829cd1883cSCao jin if (sscanf(str, ":%32[^,]%n", port, &pos) != 1) { 583baacf047SPaolo Bonzini error_setg(errp, "error parsing port in address '%s'", str); 5840785bd7aSMarkus Armbruster return -1; 585baacf047SPaolo Bonzini } 586baacf047SPaolo Bonzini } else if (str[0] == '[') { 587baacf047SPaolo Bonzini /* IPv6 addr */ 5889cd1883cSCao jin if (sscanf(str, "[%64[^]]]:%32[^,]%n", host, port, &pos) != 2) { 589baacf047SPaolo Bonzini error_setg(errp, "error parsing IPv6 address '%s'", str); 5900785bd7aSMarkus Armbruster return -1; 591baacf047SPaolo Bonzini } 592baacf047SPaolo Bonzini } else { 593391b7b97SJán Tomko /* hostname or IPv4 addr */ 5949cd1883cSCao jin if (sscanf(str, "%64[^:]:%32[^,]%n", host, port, &pos) != 2) { 595baacf047SPaolo Bonzini error_setg(errp, "error parsing address '%s'", str); 5960785bd7aSMarkus Armbruster return -1; 597baacf047SPaolo Bonzini } 598baacf047SPaolo Bonzini } 599baacf047SPaolo Bonzini 600baacf047SPaolo Bonzini addr->host = g_strdup(host); 601baacf047SPaolo Bonzini addr->port = g_strdup(port); 602baacf047SPaolo Bonzini 603baacf047SPaolo Bonzini /* parse options */ 604baacf047SPaolo Bonzini optstr = str + pos; 605baacf047SPaolo Bonzini h = strstr(optstr, ",to="); 606baacf047SPaolo Bonzini if (h) { 607baacf047SPaolo Bonzini h += 4; 608baacf047SPaolo Bonzini if (sscanf(h, "%d%n", &to, &pos) != 1 || 609baacf047SPaolo Bonzini (h[pos] != '\0' && h[pos] != ',')) { 610baacf047SPaolo Bonzini error_setg(errp, "error parsing to= argument"); 6110785bd7aSMarkus Armbruster return -1; 612baacf047SPaolo Bonzini } 613baacf047SPaolo Bonzini addr->has_to = true; 614baacf047SPaolo Bonzini addr->to = to; 615baacf047SPaolo Bonzini } 616baacf047SPaolo Bonzini if (strstr(optstr, ",ipv4")) { 617baacf047SPaolo Bonzini addr->ipv4 = addr->has_ipv4 = true; 618baacf047SPaolo Bonzini } 619baacf047SPaolo Bonzini if (strstr(optstr, ",ipv6")) { 620baacf047SPaolo Bonzini addr->ipv6 = addr->has_ipv6 = true; 621baacf047SPaolo Bonzini } 6220785bd7aSMarkus Armbruster return 0; 623baacf047SPaolo Bonzini } 624baacf047SPaolo Bonzini 625baacf047SPaolo Bonzini 626baacf047SPaolo Bonzini /** 627baacf047SPaolo Bonzini * Create a blocking socket and connect it to an address. 628baacf047SPaolo Bonzini * 629baacf047SPaolo Bonzini * @str: address string 630baacf047SPaolo Bonzini * @errp: set in case of an error 631baacf047SPaolo Bonzini * 632baacf047SPaolo Bonzini * Returns -1 in case of error, file descriptor on success 633baacf047SPaolo Bonzini **/ 634baacf047SPaolo Bonzini int inet_connect(const char *str, Error **errp) 635baacf047SPaolo Bonzini { 636baacf047SPaolo Bonzini int sock = -1; 6370785bd7aSMarkus Armbruster InetSocketAddress *addr = g_new(InetSocketAddress, 1); 638baacf047SPaolo Bonzini 6390785bd7aSMarkus Armbruster if (!inet_parse(addr, str, errp)) { 640b2587932SCao jin sock = inet_connect_saddr(addr, errp); 641baacf047SPaolo Bonzini } 6420785bd7aSMarkus Armbruster qapi_free_InetSocketAddress(addr); 643baacf047SPaolo Bonzini return sock; 644baacf047SPaolo Bonzini } 645baacf047SPaolo Bonzini 6466a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 6476a02c806SStefan Hajnoczi static bool vsock_parse_vaddr_to_sockaddr(const VsockSocketAddress *vaddr, 6486a02c806SStefan Hajnoczi struct sockaddr_vm *svm, 6496a02c806SStefan Hajnoczi Error **errp) 6506a02c806SStefan Hajnoczi { 6516a02c806SStefan Hajnoczi unsigned long long val; 6526a02c806SStefan Hajnoczi 6536a02c806SStefan Hajnoczi memset(svm, 0, sizeof(*svm)); 6546a02c806SStefan Hajnoczi svm->svm_family = AF_VSOCK; 6556a02c806SStefan Hajnoczi 6566a02c806SStefan Hajnoczi if (parse_uint_full(vaddr->cid, &val, 10) < 0 || 6576a02c806SStefan Hajnoczi val > UINT32_MAX) { 6586a02c806SStefan Hajnoczi error_setg(errp, "Failed to parse cid '%s'", vaddr->cid); 6596a02c806SStefan Hajnoczi return false; 6606a02c806SStefan Hajnoczi } 6616a02c806SStefan Hajnoczi svm->svm_cid = val; 6626a02c806SStefan Hajnoczi 6636a02c806SStefan Hajnoczi if (parse_uint_full(vaddr->port, &val, 10) < 0 || 6646a02c806SStefan Hajnoczi val > UINT32_MAX) { 6656a02c806SStefan Hajnoczi error_setg(errp, "Failed to parse port '%s'", vaddr->port); 6666a02c806SStefan Hajnoczi return false; 6676a02c806SStefan Hajnoczi } 6686a02c806SStefan Hajnoczi svm->svm_port = val; 6696a02c806SStefan Hajnoczi 6706a02c806SStefan Hajnoczi return true; 6716a02c806SStefan Hajnoczi } 6726a02c806SStefan Hajnoczi 673b2587932SCao jin static int vsock_connect_addr(const struct sockaddr_vm *svm, Error **errp) 6746a02c806SStefan Hajnoczi { 6756a02c806SStefan Hajnoczi int sock, rc; 6766a02c806SStefan Hajnoczi 6776a02c806SStefan Hajnoczi sock = qemu_socket(AF_VSOCK, SOCK_STREAM, 0); 6786a02c806SStefan Hajnoczi if (sock < 0) { 6796a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to create socket"); 6806a02c806SStefan Hajnoczi return -1; 6816a02c806SStefan Hajnoczi } 682b2587932SCao jin 6836a02c806SStefan Hajnoczi /* connect to peer */ 6846a02c806SStefan Hajnoczi do { 6856a02c806SStefan Hajnoczi rc = 0; 6866a02c806SStefan Hajnoczi if (connect(sock, (const struct sockaddr *)svm, sizeof(*svm)) < 0) { 6876a02c806SStefan Hajnoczi rc = -errno; 6886a02c806SStefan Hajnoczi } 6896a02c806SStefan Hajnoczi } while (rc == -EINTR); 6906a02c806SStefan Hajnoczi 691b2587932SCao jin if (rc < 0) { 6926a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to connect socket"); 6936a02c806SStefan Hajnoczi closesocket(sock); 6946a02c806SStefan Hajnoczi return -1; 6956a02c806SStefan Hajnoczi } 696b2587932SCao jin 6976a02c806SStefan Hajnoczi return sock; 6986a02c806SStefan Hajnoczi } 6996a02c806SStefan Hajnoczi 700b2587932SCao jin static int vsock_connect_saddr(VsockSocketAddress *vaddr, Error **errp) 7016a02c806SStefan Hajnoczi { 7026a02c806SStefan Hajnoczi struct sockaddr_vm svm; 7036a02c806SStefan Hajnoczi int sock = -1; 7046a02c806SStefan Hajnoczi 7056a02c806SStefan Hajnoczi if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) { 7066a02c806SStefan Hajnoczi return -1; 7076a02c806SStefan Hajnoczi } 7086a02c806SStefan Hajnoczi 709b2587932SCao jin sock = vsock_connect_addr(&svm, errp); 7106a02c806SStefan Hajnoczi 7116a02c806SStefan Hajnoczi return sock; 7126a02c806SStefan Hajnoczi } 7136a02c806SStefan Hajnoczi 7146a02c806SStefan Hajnoczi static int vsock_listen_saddr(VsockSocketAddress *vaddr, 7156a02c806SStefan Hajnoczi Error **errp) 7166a02c806SStefan Hajnoczi { 7176a02c806SStefan Hajnoczi struct sockaddr_vm svm; 7186a02c806SStefan Hajnoczi int slisten; 7196a02c806SStefan Hajnoczi 7206a02c806SStefan Hajnoczi if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) { 7216a02c806SStefan Hajnoczi return -1; 7226a02c806SStefan Hajnoczi } 7236a02c806SStefan Hajnoczi 7246a02c806SStefan Hajnoczi slisten = qemu_socket(AF_VSOCK, SOCK_STREAM, 0); 7256a02c806SStefan Hajnoczi if (slisten < 0) { 7266a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to create socket"); 7276a02c806SStefan Hajnoczi return -1; 7286a02c806SStefan Hajnoczi } 7296a02c806SStefan Hajnoczi 7306a02c806SStefan Hajnoczi if (bind(slisten, (const struct sockaddr *)&svm, sizeof(svm)) != 0) { 7316a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to bind socket"); 7326a02c806SStefan Hajnoczi closesocket(slisten); 7336a02c806SStefan Hajnoczi return -1; 7346a02c806SStefan Hajnoczi } 7356a02c806SStefan Hajnoczi 7366a02c806SStefan Hajnoczi if (listen(slisten, 1) != 0) { 7376a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to listen on socket"); 7386a02c806SStefan Hajnoczi closesocket(slisten); 7396a02c806SStefan Hajnoczi return -1; 7406a02c806SStefan Hajnoczi } 7416a02c806SStefan Hajnoczi return slisten; 7426a02c806SStefan Hajnoczi } 7436a02c806SStefan Hajnoczi 7444db5c619SMarkus Armbruster static int vsock_parse(VsockSocketAddress *addr, const char *str, 7454db5c619SMarkus Armbruster Error **errp) 7466a02c806SStefan Hajnoczi { 7476a02c806SStefan Hajnoczi char cid[33]; 7486a02c806SStefan Hajnoczi char port[33]; 7496a02c806SStefan Hajnoczi int n; 7506a02c806SStefan Hajnoczi 7516a02c806SStefan Hajnoczi if (sscanf(str, "%32[^:]:%32[^,]%n", cid, port, &n) != 2) { 7526a02c806SStefan Hajnoczi error_setg(errp, "error parsing address '%s'", str); 7534db5c619SMarkus Armbruster return -1; 7546a02c806SStefan Hajnoczi } 7556a02c806SStefan Hajnoczi if (str[n] != '\0') { 7566a02c806SStefan Hajnoczi error_setg(errp, "trailing characters in address '%s'", str); 7574db5c619SMarkus Armbruster return -1; 7586a02c806SStefan Hajnoczi } 7596a02c806SStefan Hajnoczi 7606a02c806SStefan Hajnoczi addr->cid = g_strdup(cid); 7616a02c806SStefan Hajnoczi addr->port = g_strdup(port); 7624db5c619SMarkus Armbruster return 0; 7636a02c806SStefan Hajnoczi } 7646a02c806SStefan Hajnoczi #else 7656a02c806SStefan Hajnoczi static void vsock_unsupported(Error **errp) 7666a02c806SStefan Hajnoczi { 7676a02c806SStefan Hajnoczi error_setg(errp, "socket family AF_VSOCK unsupported"); 7686a02c806SStefan Hajnoczi } 7696a02c806SStefan Hajnoczi 770b2587932SCao jin static int vsock_connect_saddr(VsockSocketAddress *vaddr, Error **errp) 7716a02c806SStefan Hajnoczi { 7726a02c806SStefan Hajnoczi vsock_unsupported(errp); 7736a02c806SStefan Hajnoczi return -1; 7746a02c806SStefan Hajnoczi } 7756a02c806SStefan Hajnoczi 7766a02c806SStefan Hajnoczi static int vsock_listen_saddr(VsockSocketAddress *vaddr, 7776a02c806SStefan Hajnoczi Error **errp) 7786a02c806SStefan Hajnoczi { 7796a02c806SStefan Hajnoczi vsock_unsupported(errp); 7806a02c806SStefan Hajnoczi return -1; 7816a02c806SStefan Hajnoczi } 7826a02c806SStefan Hajnoczi 7834db5c619SMarkus Armbruster static int vsock_parse(VsockSocketAddress *addr, const char *str, 7844db5c619SMarkus Armbruster Error **errp) 7856a02c806SStefan Hajnoczi { 7866a02c806SStefan Hajnoczi vsock_unsupported(errp); 7874db5c619SMarkus Armbruster return -1; 7886a02c806SStefan Hajnoczi } 7896a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 7906a02c806SStefan Hajnoczi 791baacf047SPaolo Bonzini #ifndef _WIN32 792baacf047SPaolo Bonzini 7931856835dSDaniel P. Berrange static int unix_listen_saddr(UnixSocketAddress *saddr, 7941856835dSDaniel P. Berrange bool update_addr, 7951856835dSDaniel P. Berrange Error **errp) 796baacf047SPaolo Bonzini { 797baacf047SPaolo Bonzini struct sockaddr_un un; 798baacf047SPaolo Bonzini int sock, fd; 799ad9579aaSDaniel P. Berrange char *pathbuf = NULL; 800ad9579aaSDaniel P. Berrange const char *path; 801baacf047SPaolo Bonzini 802baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 803baacf047SPaolo Bonzini if (sock < 0) { 804b658c53dSPaolo Bonzini error_setg_errno(errp, errno, "Failed to create Unix socket"); 805baacf047SPaolo Bonzini return -1; 806baacf047SPaolo Bonzini } 807baacf047SPaolo Bonzini 808ad9579aaSDaniel P. Berrange if (saddr->path && saddr->path[0]) { 809ad9579aaSDaniel P. Berrange path = saddr->path; 810baacf047SPaolo Bonzini } else { 811b658c53dSPaolo Bonzini const char *tmpdir = getenv("TMPDIR"); 812b658c53dSPaolo Bonzini tmpdir = tmpdir ? tmpdir : "/tmp"; 813ad9579aaSDaniel P. Berrange path = pathbuf = g_strdup_printf("%s/qemu-socket-XXXXXX", tmpdir); 814ad9579aaSDaniel P. Berrange } 815ad9579aaSDaniel P. Berrange 816ad9579aaSDaniel P. Berrange if (strlen(path) > sizeof(un.sun_path)) { 817ad9579aaSDaniel P. Berrange error_setg(errp, "UNIX socket path '%s' is too long", path); 818ad9579aaSDaniel P. Berrange error_append_hint(errp, "Path must be less than %zu bytes\n", 819ad9579aaSDaniel P. Berrange sizeof(un.sun_path)); 820b658c53dSPaolo Bonzini goto err; 821b658c53dSPaolo Bonzini } 822b658c53dSPaolo Bonzini 823ad9579aaSDaniel P. Berrange if (pathbuf != NULL) { 824baacf047SPaolo Bonzini /* 825baacf047SPaolo Bonzini * This dummy fd usage silences the mktemp() unsecure warning. 826baacf047SPaolo Bonzini * Using mkstemp() doesn't make things more secure here 827baacf047SPaolo Bonzini * though. bind() complains about existing files, so we have 828baacf047SPaolo Bonzini * to unlink first and thus re-open the race window. The 829baacf047SPaolo Bonzini * worst case possible is bind() failing, i.e. a DoS attack. 830baacf047SPaolo Bonzini */ 831ad9579aaSDaniel P. Berrange fd = mkstemp(pathbuf); 832b658c53dSPaolo Bonzini if (fd < 0) { 833b658c53dSPaolo Bonzini error_setg_errno(errp, errno, 834ad9579aaSDaniel P. Berrange "Failed to make a temporary socket %s", pathbuf); 835b658c53dSPaolo Bonzini goto err; 836b658c53dSPaolo Bonzini } 837b658c53dSPaolo Bonzini close(fd); 838baacf047SPaolo Bonzini } 839baacf047SPaolo Bonzini 840ad9579aaSDaniel P. Berrange if (unlink(path) < 0 && errno != ENOENT) { 8410ef705a2SCole Robinson error_setg_errno(errp, errno, 842ad9579aaSDaniel P. Berrange "Failed to unlink socket %s", path); 8430ef705a2SCole Robinson goto err; 8440ef705a2SCole Robinson } 845ad9579aaSDaniel P. Berrange 846ad9579aaSDaniel P. Berrange memset(&un, 0, sizeof(un)); 847ad9579aaSDaniel P. Berrange un.sun_family = AF_UNIX; 848ad9579aaSDaniel P. Berrange strncpy(un.sun_path, path, sizeof(un.sun_path)); 849ad9579aaSDaniel P. Berrange 850baacf047SPaolo Bonzini if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) { 85156382bd5SDaniel P. Berrange error_setg_errno(errp, errno, "Failed to bind socket to %s", path); 852baacf047SPaolo Bonzini goto err; 853baacf047SPaolo Bonzini } 854baacf047SPaolo Bonzini if (listen(sock, 1) < 0) { 855235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 856baacf047SPaolo Bonzini goto err; 857baacf047SPaolo Bonzini } 858baacf047SPaolo Bonzini 859ad9579aaSDaniel P. Berrange if (update_addr && pathbuf) { 860ad9579aaSDaniel P. Berrange g_free(saddr->path); 861ad9579aaSDaniel P. Berrange saddr->path = pathbuf; 862ad9579aaSDaniel P. Berrange } else { 863ad9579aaSDaniel P. Berrange g_free(pathbuf); 864ad9579aaSDaniel P. Berrange } 865baacf047SPaolo Bonzini return sock; 866baacf047SPaolo Bonzini 867baacf047SPaolo Bonzini err: 868ad9579aaSDaniel P. Berrange g_free(pathbuf); 869baacf047SPaolo Bonzini closesocket(sock); 870baacf047SPaolo Bonzini return -1; 871baacf047SPaolo Bonzini } 872baacf047SPaolo Bonzini 873b2587932SCao jin static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp) 874baacf047SPaolo Bonzini { 875baacf047SPaolo Bonzini struct sockaddr_un un; 876baacf047SPaolo Bonzini int sock, rc; 877baacf047SPaolo Bonzini 8782942e420SDaniel P. Berrange if (saddr->path == NULL) { 879312fd5f2SMarkus Armbruster error_setg(errp, "unix connect: no path specified"); 880baacf047SPaolo Bonzini return -1; 881baacf047SPaolo Bonzini } 882baacf047SPaolo Bonzini 883baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 884baacf047SPaolo Bonzini if (sock < 0) { 885235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 886baacf047SPaolo Bonzini return -1; 887baacf047SPaolo Bonzini } 888baacf047SPaolo Bonzini 889ad9579aaSDaniel P. Berrange if (strlen(saddr->path) > sizeof(un.sun_path)) { 890ad9579aaSDaniel P. Berrange error_setg(errp, "UNIX socket path '%s' is too long", saddr->path); 891ad9579aaSDaniel P. Berrange error_append_hint(errp, "Path must be less than %zu bytes\n", 892ad9579aaSDaniel P. Berrange sizeof(un.sun_path)); 893ad9579aaSDaniel P. Berrange goto err; 894ad9579aaSDaniel P. Berrange } 895ad9579aaSDaniel P. Berrange 896baacf047SPaolo Bonzini memset(&un, 0, sizeof(un)); 897baacf047SPaolo Bonzini un.sun_family = AF_UNIX; 898ad9579aaSDaniel P. Berrange strncpy(un.sun_path, saddr->path, sizeof(un.sun_path)); 899baacf047SPaolo Bonzini 900baacf047SPaolo Bonzini /* connect to peer */ 901baacf047SPaolo Bonzini do { 902baacf047SPaolo Bonzini rc = 0; 903baacf047SPaolo Bonzini if (connect(sock, (struct sockaddr *) &un, sizeof(un)) < 0) { 904b16a44e1SDaniel P. Berrange rc = -errno; 905baacf047SPaolo Bonzini } 906baacf047SPaolo Bonzini } while (rc == -EINTR); 907baacf047SPaolo Bonzini 908baacf047SPaolo Bonzini if (rc < 0) { 909ad9579aaSDaniel P. Berrange error_setg_errno(errp, -rc, "Failed to connect socket %s", 910ad9579aaSDaniel P. Berrange saddr->path); 911ad9579aaSDaniel P. Berrange goto err; 912baacf047SPaolo Bonzini } 913baacf047SPaolo Bonzini 914baacf047SPaolo Bonzini return sock; 915ad9579aaSDaniel P. Berrange 916ad9579aaSDaniel P. Berrange err: 917ad9579aaSDaniel P. Berrange close(sock); 918ad9579aaSDaniel P. Berrange return -1; 919baacf047SPaolo Bonzini } 920baacf047SPaolo Bonzini 921baacf047SPaolo Bonzini #else 922baacf047SPaolo Bonzini 9231856835dSDaniel P. Berrange static int unix_listen_saddr(UnixSocketAddress *saddr, 9241856835dSDaniel P. Berrange bool update_addr, 9251856835dSDaniel P. Berrange Error **errp) 926baacf047SPaolo Bonzini { 927baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 928baacf047SPaolo Bonzini errno = ENOTSUP; 929baacf047SPaolo Bonzini return -1; 930baacf047SPaolo Bonzini } 931baacf047SPaolo Bonzini 932b2587932SCao jin static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp) 933baacf047SPaolo Bonzini { 934baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 935baacf047SPaolo Bonzini errno = ENOTSUP; 936baacf047SPaolo Bonzini return -1; 937baacf047SPaolo Bonzini } 938baacf047SPaolo Bonzini #endif 939baacf047SPaolo Bonzini 940baacf047SPaolo Bonzini /* compatibility wrapper */ 941baacf047SPaolo Bonzini int unix_listen(const char *str, char *ostr, int olen, Error **errp) 942baacf047SPaolo Bonzini { 943baacf047SPaolo Bonzini char *path, *optstr; 944baacf047SPaolo Bonzini int sock, len; 9451856835dSDaniel P. Berrange UnixSocketAddress *saddr; 946baacf047SPaolo Bonzini 9471856835dSDaniel P. Berrange saddr = g_new0(UnixSocketAddress, 1); 948baacf047SPaolo Bonzini 949baacf047SPaolo Bonzini optstr = strchr(str, ','); 950baacf047SPaolo Bonzini if (optstr) { 951baacf047SPaolo Bonzini len = optstr - str; 952baacf047SPaolo Bonzini if (len) { 953baacf047SPaolo Bonzini path = g_malloc(len+1); 954baacf047SPaolo Bonzini snprintf(path, len+1, "%.*s", len, str); 9551856835dSDaniel P. Berrange saddr->path = path; 956baacf047SPaolo Bonzini } 957baacf047SPaolo Bonzini } else { 9581856835dSDaniel P. Berrange saddr->path = g_strdup(str); 959baacf047SPaolo Bonzini } 960baacf047SPaolo Bonzini 9611856835dSDaniel P. Berrange sock = unix_listen_saddr(saddr, true, errp); 962baacf047SPaolo Bonzini 96326015051SCao jin if (sock != -1 && ostr) { 9641856835dSDaniel P. Berrange snprintf(ostr, olen, "%s%s", saddr->path, optstr ? optstr : ""); 96526015051SCao jin } 96626015051SCao jin 9671856835dSDaniel P. Berrange qapi_free_UnixSocketAddress(saddr); 968baacf047SPaolo Bonzini return sock; 969baacf047SPaolo Bonzini } 970baacf047SPaolo Bonzini 971baacf047SPaolo Bonzini int unix_connect(const char *path, Error **errp) 972baacf047SPaolo Bonzini { 9732942e420SDaniel P. Berrange UnixSocketAddress *saddr; 974baacf047SPaolo Bonzini int sock; 975baacf047SPaolo Bonzini 9762942e420SDaniel P. Berrange saddr = g_new0(UnixSocketAddress, 1); 9772942e420SDaniel P. Berrange saddr->path = g_strdup(path); 978b2587932SCao jin sock = unix_connect_saddr(saddr, errp); 9792942e420SDaniel P. Berrange qapi_free_UnixSocketAddress(saddr); 980baacf047SPaolo Bonzini return sock; 981baacf047SPaolo Bonzini } 982baacf047SPaolo Bonzini 983baacf047SPaolo Bonzini 984bd269ebcSMarkus Armbruster SocketAddress *socket_parse(const char *str, Error **errp) 985baacf047SPaolo Bonzini { 986bd269ebcSMarkus Armbruster SocketAddress *addr; 987baacf047SPaolo Bonzini 988bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 989baacf047SPaolo Bonzini if (strstart(str, "unix:", NULL)) { 990baacf047SPaolo Bonzini if (str[5] == '\0') { 991312fd5f2SMarkus Armbruster error_setg(errp, "invalid Unix socket address"); 992baacf047SPaolo Bonzini goto fail; 993baacf047SPaolo Bonzini } else { 994bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 995bd269ebcSMarkus Armbruster addr->u.q_unix.path = g_strdup(str + 5); 996baacf047SPaolo Bonzini } 997baacf047SPaolo Bonzini } else if (strstart(str, "fd:", NULL)) { 998baacf047SPaolo Bonzini if (str[3] == '\0') { 999312fd5f2SMarkus Armbruster error_setg(errp, "invalid file descriptor address"); 1000baacf047SPaolo Bonzini goto fail; 1001baacf047SPaolo Bonzini } else { 1002bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_FD; 1003bd269ebcSMarkus Armbruster addr->u.fd.str = g_strdup(str + 3); 1004baacf047SPaolo Bonzini } 10056a02c806SStefan Hajnoczi } else if (strstart(str, "vsock:", NULL)) { 1006bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1007bd269ebcSMarkus Armbruster if (vsock_parse(&addr->u.vsock, str + strlen("vsock:"), errp)) { 10086a02c806SStefan Hajnoczi goto fail; 10096a02c806SStefan Hajnoczi } 1010baacf047SPaolo Bonzini } else { 1011bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1012bd269ebcSMarkus Armbruster if (inet_parse(&addr->u.inet, str, errp)) { 1013baacf047SPaolo Bonzini goto fail; 1014baacf047SPaolo Bonzini } 1015baacf047SPaolo Bonzini } 1016baacf047SPaolo Bonzini return addr; 1017baacf047SPaolo Bonzini 1018baacf047SPaolo Bonzini fail: 1019bd269ebcSMarkus Armbruster qapi_free_SocketAddress(addr); 1020baacf047SPaolo Bonzini return NULL; 1021baacf047SPaolo Bonzini } 1022baacf047SPaolo Bonzini 1023b2587932SCao jin int socket_connect(SocketAddress *addr, Error **errp) 1024baacf047SPaolo Bonzini { 1025baacf047SPaolo Bonzini int fd; 1026baacf047SPaolo Bonzini 10272d32addaSEric Blake switch (addr->type) { 1028bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1029b2587932SCao jin fd = inet_connect_saddr(&addr->u.inet, errp); 1030baacf047SPaolo Bonzini break; 1031baacf047SPaolo Bonzini 1032bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_UNIX: 1033b2587932SCao jin fd = unix_connect_saddr(&addr->u.q_unix, errp); 1034baacf047SPaolo Bonzini break; 1035baacf047SPaolo Bonzini 1036bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_FD: 1037bd269ebcSMarkus Armbruster fd = monitor_get_fd(cur_mon, addr->u.fd.str, errp); 1038baacf047SPaolo Bonzini break; 1039baacf047SPaolo Bonzini 1040bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_VSOCK: 1041b2587932SCao jin fd = vsock_connect_saddr(&addr->u.vsock, errp); 10426a02c806SStefan Hajnoczi break; 10436a02c806SStefan Hajnoczi 1044baacf047SPaolo Bonzini default: 1045baacf047SPaolo Bonzini abort(); 1046baacf047SPaolo Bonzini } 1047baacf047SPaolo Bonzini return fd; 1048baacf047SPaolo Bonzini } 1049baacf047SPaolo Bonzini 1050bd269ebcSMarkus Armbruster int socket_listen(SocketAddress *addr, Error **errp) 1051baacf047SPaolo Bonzini { 1052baacf047SPaolo Bonzini int fd; 1053baacf047SPaolo Bonzini 10542d32addaSEric Blake switch (addr->type) { 1055bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1056bd269ebcSMarkus Armbruster fd = inet_listen_saddr(&addr->u.inet, 0, false, errp); 1057baacf047SPaolo Bonzini break; 1058baacf047SPaolo Bonzini 1059bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_UNIX: 1060bd269ebcSMarkus Armbruster fd = unix_listen_saddr(&addr->u.q_unix, false, errp); 1061baacf047SPaolo Bonzini break; 1062baacf047SPaolo Bonzini 1063bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_FD: 1064bd269ebcSMarkus Armbruster fd = monitor_get_fd(cur_mon, addr->u.fd.str, errp); 1065baacf047SPaolo Bonzini break; 1066baacf047SPaolo Bonzini 1067bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_VSOCK: 1068bd269ebcSMarkus Armbruster fd = vsock_listen_saddr(&addr->u.vsock, errp); 10696a02c806SStefan Hajnoczi break; 10706a02c806SStefan Hajnoczi 1071baacf047SPaolo Bonzini default: 1072baacf047SPaolo Bonzini abort(); 1073baacf047SPaolo Bonzini } 1074baacf047SPaolo Bonzini return fd; 1075baacf047SPaolo Bonzini } 1076baacf047SPaolo Bonzini 107774b6ce43SMarc-André Lureau void socket_listen_cleanup(int fd, Error **errp) 107874b6ce43SMarc-André Lureau { 1079bd269ebcSMarkus Armbruster SocketAddress *addr; 108074b6ce43SMarc-André Lureau 108174b6ce43SMarc-André Lureau addr = socket_local_address(fd, errp); 108274b6ce43SMarc-André Lureau 1083bd269ebcSMarkus Armbruster if (addr->type == SOCKET_ADDRESS_TYPE_UNIX 1084bd269ebcSMarkus Armbruster && addr->u.q_unix.path) { 1085bd269ebcSMarkus Armbruster if (unlink(addr->u.q_unix.path) < 0 && errno != ENOENT) { 108674b6ce43SMarc-André Lureau error_setg_errno(errp, errno, 108774b6ce43SMarc-André Lureau "Failed to unlink socket %s", 1088bd269ebcSMarkus Armbruster addr->u.q_unix.path); 108974b6ce43SMarc-André Lureau } 109074b6ce43SMarc-André Lureau } 109174b6ce43SMarc-André Lureau 1092bd269ebcSMarkus Armbruster qapi_free_SocketAddress(addr); 109374b6ce43SMarc-André Lureau } 109474b6ce43SMarc-André Lureau 1095bd269ebcSMarkus Armbruster int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp) 10963ecc059dSGerd Hoffmann { 10973ecc059dSGerd Hoffmann int fd; 10983ecc059dSGerd Hoffmann 1099ca0b64e5SMarkus Armbruster /* 1100bd269ebcSMarkus Armbruster * TODO SOCKET_ADDRESS_TYPE_FD when fd is AF_INET or AF_INET6 1101ca0b64e5SMarkus Armbruster * (although other address families can do SOCK_DGRAM, too) 1102ca0b64e5SMarkus Armbruster */ 11032d32addaSEric Blake switch (remote->type) { 1104bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1105bd269ebcSMarkus Armbruster fd = inet_dgram_saddr(&remote->u.inet, 1106bd269ebcSMarkus Armbruster local ? &local->u.inet : NULL, errp); 11073ecc059dSGerd Hoffmann break; 11083ecc059dSGerd Hoffmann 11093ecc059dSGerd Hoffmann default: 11103ecc059dSGerd Hoffmann error_setg(errp, "socket type unsupported for datagram"); 11117a5b6af1SGerd Hoffmann fd = -1; 11123ecc059dSGerd Hoffmann } 11133ecc059dSGerd Hoffmann return fd; 11143ecc059dSGerd Hoffmann } 111517c55decSDaniel P. Berrange 111617c55decSDaniel P. Berrange 1117bd269ebcSMarkus Armbruster static SocketAddress * 111817c55decSDaniel P. Berrange socket_sockaddr_to_address_inet(struct sockaddr_storage *sa, 111917c55decSDaniel P. Berrange socklen_t salen, 112017c55decSDaniel P. Berrange Error **errp) 112117c55decSDaniel P. Berrange { 112217c55decSDaniel P. Berrange char host[NI_MAXHOST]; 112317c55decSDaniel P. Berrange char serv[NI_MAXSERV]; 1124bd269ebcSMarkus Armbruster SocketAddress *addr; 11250399293eSEric Blake InetSocketAddress *inet; 112617c55decSDaniel P. Berrange int ret; 112717c55decSDaniel P. Berrange 112817c55decSDaniel P. Berrange ret = getnameinfo((struct sockaddr *)sa, salen, 112917c55decSDaniel P. Berrange host, sizeof(host), 113017c55decSDaniel P. Berrange serv, sizeof(serv), 113117c55decSDaniel P. Berrange NI_NUMERICHOST | NI_NUMERICSERV); 113217c55decSDaniel P. Berrange if (ret != 0) { 113317c55decSDaniel P. Berrange error_setg(errp, "Cannot format numeric socket address: %s", 113417c55decSDaniel P. Berrange gai_strerror(ret)); 113517c55decSDaniel P. Berrange return NULL; 113617c55decSDaniel P. Berrange } 113717c55decSDaniel P. Berrange 1138bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1139bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1140bd269ebcSMarkus Armbruster inet = &addr->u.inet; 11410399293eSEric Blake inet->host = g_strdup(host); 11420399293eSEric Blake inet->port = g_strdup(serv); 114317c55decSDaniel P. Berrange if (sa->ss_family == AF_INET) { 11440399293eSEric Blake inet->has_ipv4 = inet->ipv4 = true; 114517c55decSDaniel P. Berrange } else { 11460399293eSEric Blake inet->has_ipv6 = inet->ipv6 = true; 114717c55decSDaniel P. Berrange } 114817c55decSDaniel P. Berrange 114917c55decSDaniel P. Berrange return addr; 115017c55decSDaniel P. Berrange } 115117c55decSDaniel P. Berrange 115217c55decSDaniel P. Berrange 115317c55decSDaniel P. Berrange #ifndef WIN32 1154bd269ebcSMarkus Armbruster static SocketAddress * 115517c55decSDaniel P. Berrange socket_sockaddr_to_address_unix(struct sockaddr_storage *sa, 115617c55decSDaniel P. Berrange socklen_t salen, 115717c55decSDaniel P. Berrange Error **errp) 115817c55decSDaniel P. Berrange { 1159bd269ebcSMarkus Armbruster SocketAddress *addr; 116017c55decSDaniel P. Berrange struct sockaddr_un *su = (struct sockaddr_un *)sa; 116117c55decSDaniel P. Berrange 1162bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1163bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 116417c55decSDaniel P. Berrange if (su->sun_path[0]) { 1165bd269ebcSMarkus Armbruster addr->u.q_unix.path = g_strndup(su->sun_path, sizeof(su->sun_path)); 116617c55decSDaniel P. Berrange } 116717c55decSDaniel P. Berrange 116817c55decSDaniel P. Berrange return addr; 116917c55decSDaniel P. Berrange } 117017c55decSDaniel P. Berrange #endif /* WIN32 */ 117117c55decSDaniel P. Berrange 11726a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 1173bd269ebcSMarkus Armbruster static SocketAddress * 11746a02c806SStefan Hajnoczi socket_sockaddr_to_address_vsock(struct sockaddr_storage *sa, 11756a02c806SStefan Hajnoczi socklen_t salen, 11766a02c806SStefan Hajnoczi Error **errp) 11776a02c806SStefan Hajnoczi { 1178bd269ebcSMarkus Armbruster SocketAddress *addr; 11796a02c806SStefan Hajnoczi VsockSocketAddress *vaddr; 11806a02c806SStefan Hajnoczi struct sockaddr_vm *svm = (struct sockaddr_vm *)sa; 11816a02c806SStefan Hajnoczi 1182bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1183bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1184bd269ebcSMarkus Armbruster vaddr = &addr->u.vsock; 11856a02c806SStefan Hajnoczi vaddr->cid = g_strdup_printf("%u", svm->svm_cid); 11866a02c806SStefan Hajnoczi vaddr->port = g_strdup_printf("%u", svm->svm_port); 11876a02c806SStefan Hajnoczi 11886a02c806SStefan Hajnoczi return addr; 11896a02c806SStefan Hajnoczi } 11906a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 11916a02c806SStefan Hajnoczi 1192bd269ebcSMarkus Armbruster SocketAddress * 119317c55decSDaniel P. Berrange socket_sockaddr_to_address(struct sockaddr_storage *sa, 119417c55decSDaniel P. Berrange socklen_t salen, 119517c55decSDaniel P. Berrange Error **errp) 119617c55decSDaniel P. Berrange { 119717c55decSDaniel P. Berrange switch (sa->ss_family) { 119817c55decSDaniel P. Berrange case AF_INET: 119917c55decSDaniel P. Berrange case AF_INET6: 120017c55decSDaniel P. Berrange return socket_sockaddr_to_address_inet(sa, salen, errp); 120117c55decSDaniel P. Berrange 120217c55decSDaniel P. Berrange #ifndef WIN32 120317c55decSDaniel P. Berrange case AF_UNIX: 120417c55decSDaniel P. Berrange return socket_sockaddr_to_address_unix(sa, salen, errp); 120517c55decSDaniel P. Berrange #endif /* WIN32 */ 120617c55decSDaniel P. Berrange 12076a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 12086a02c806SStefan Hajnoczi case AF_VSOCK: 12096a02c806SStefan Hajnoczi return socket_sockaddr_to_address_vsock(sa, salen, errp); 12106a02c806SStefan Hajnoczi #endif 12116a02c806SStefan Hajnoczi 121217c55decSDaniel P. Berrange default: 121317c55decSDaniel P. Berrange error_setg(errp, "socket family %d unsupported", 121417c55decSDaniel P. Berrange sa->ss_family); 121517c55decSDaniel P. Berrange return NULL; 121617c55decSDaniel P. Berrange } 121717c55decSDaniel P. Berrange return 0; 121817c55decSDaniel P. Berrange } 121917c55decSDaniel P. Berrange 122017c55decSDaniel P. Berrange 1221bd269ebcSMarkus Armbruster SocketAddress *socket_local_address(int fd, Error **errp) 122217c55decSDaniel P. Berrange { 122317c55decSDaniel P. Berrange struct sockaddr_storage ss; 122417c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 122517c55decSDaniel P. Berrange 122617c55decSDaniel P. Berrange if (getsockname(fd, (struct sockaddr *)&ss, &sslen) < 0) { 1227b16a44e1SDaniel P. Berrange error_setg_errno(errp, errno, "%s", 122817c55decSDaniel P. Berrange "Unable to query local socket address"); 122917c55decSDaniel P. Berrange return NULL; 123017c55decSDaniel P. Berrange } 123117c55decSDaniel P. Berrange 123217c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 123317c55decSDaniel P. Berrange } 123417c55decSDaniel P. Berrange 123517c55decSDaniel P. Berrange 1236bd269ebcSMarkus Armbruster SocketAddress *socket_remote_address(int fd, Error **errp) 123717c55decSDaniel P. Berrange { 123817c55decSDaniel P. Berrange struct sockaddr_storage ss; 123917c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 124017c55decSDaniel P. Berrange 124117c55decSDaniel P. Berrange if (getpeername(fd, (struct sockaddr *)&ss, &sslen) < 0) { 1242b16a44e1SDaniel P. Berrange error_setg_errno(errp, errno, "%s", 124317c55decSDaniel P. Berrange "Unable to query remote socket address"); 124417c55decSDaniel P. Berrange return NULL; 124517c55decSDaniel P. Berrange } 124617c55decSDaniel P. Berrange 124717c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 124817c55decSDaniel P. Berrange } 12492a8e21c7SDaniel P. Berrange 1250216411b8SMarkus Armbruster 1251bd269ebcSMarkus Armbruster SocketAddress *socket_address_flatten(SocketAddressLegacy *addr_legacy) 1252bd269ebcSMarkus Armbruster { 1253fc0f0059SMarkus Armbruster SocketAddress *addr; 1254bd269ebcSMarkus Armbruster 1255bd269ebcSMarkus Armbruster if (!addr_legacy) { 1256bd269ebcSMarkus Armbruster return NULL; 1257bd269ebcSMarkus Armbruster } 1258bd269ebcSMarkus Armbruster 1259fc0f0059SMarkus Armbruster addr = g_new(SocketAddress, 1); 1260fc0f0059SMarkus Armbruster 1261bd269ebcSMarkus Armbruster switch (addr_legacy->type) { 1262bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_INET: 1263bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1264bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(InetSocketAddress, &addr->u.inet, 1265bd269ebcSMarkus Armbruster addr_legacy->u.inet.data); 1266bd269ebcSMarkus Armbruster break; 1267bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_UNIX: 1268bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 1269bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(UnixSocketAddress, &addr->u.q_unix, 1270bd269ebcSMarkus Armbruster addr_legacy->u.q_unix.data); 1271bd269ebcSMarkus Armbruster break; 1272bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_VSOCK: 1273bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1274bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(VsockSocketAddress, &addr->u.vsock, 1275bd269ebcSMarkus Armbruster addr_legacy->u.vsock.data); 1276bd269ebcSMarkus Armbruster break; 1277bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_FD: 1278bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_FD; 1279bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(String, &addr->u.fd, addr_legacy->u.fd.data); 1280bd269ebcSMarkus Armbruster break; 1281bd269ebcSMarkus Armbruster default: 1282bd269ebcSMarkus Armbruster abort(); 1283bd269ebcSMarkus Armbruster } 1284bd269ebcSMarkus Armbruster 1285bd269ebcSMarkus Armbruster return addr; 1286bd269ebcSMarkus Armbruster } 1287