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 107*94bc0d19SDaniel 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 112*94bc0d19SDaniel P. Berrange * apply the logic the end user wants. 113*94bc0d19SDaniel P. Berrange * 114*94bc0d19SDaniel P. Berrange * In the first and last cases, we must set IPV6_V6ONLY=0 115*94bc0d19SDaniel P. Berrange * when binding, to allow a single listener to potentially 116*94bc0d19SDaniel 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 } 126*94bc0d19SDaniel P. Berrange if ((addr->has_ipv6 && addr->ipv6) && (addr->has_ipv4 && addr->ipv4)) { 127*94bc0d19SDaniel P. Berrange /* 128*94bc0d19SDaniel P. Berrange * Some backends can only do a single listener. In that case 129*94bc0d19SDaniel P. Berrange * we want empty hostname to resolve to "::" and then use the 130*94bc0d19SDaniel P. Berrange * flag IPV6_V6ONLY==0 to get both protocols on 1 socket. This 131*94bc0d19SDaniel P. Berrange * doesn't work for addresses other than "", so they're just 132*94bc0d19SDaniel P. Berrange * inevitably broken until multiple listeners can be used, 133*94bc0d19SDaniel P. Berrange * and thus we honour getaddrinfo automatic protocol detection 134*94bc0d19SDaniel P. Berrange * Once all backends do multi-listener, remove the PF_INET6 135*94bc0d19SDaniel P. Berrange * branch entirely. 136*94bc0d19SDaniel P. Berrange */ 137*94bc0d19SDaniel P. Berrange if (!addr->host || g_str_equal(addr->host, "")) { 138*94bc0d19SDaniel P. Berrange return PF_INET6; 139*94bc0d19SDaniel P. Berrange } else { 140*94bc0d19SDaniel P. Berrange return PF_UNSPEC; 141*94bc0d19SDaniel P. Berrange } 142*94bc0d19SDaniel P. Berrange } 1431856835dSDaniel P. Berrange if ((addr->has_ipv6 && addr->ipv6) || (addr->has_ipv4 && !addr->ipv4)) { 1441856835dSDaniel P. Berrange return PF_INET6; 1451856835dSDaniel P. Berrange } 1461856835dSDaniel P. Berrange if ((addr->has_ipv4 && addr->ipv4) || (addr->has_ipv6 && !addr->ipv6)) { 1471856835dSDaniel P. Berrange return PF_INET; 1481856835dSDaniel P. Berrange } 1491856835dSDaniel P. Berrange return PF_UNSPEC; 1501856835dSDaniel P. Berrange } 1511856835dSDaniel P. Berrange 1521856835dSDaniel P. Berrange static int inet_listen_saddr(InetSocketAddress *saddr, 1531856835dSDaniel P. Berrange int port_offset, 1541856835dSDaniel P. Berrange bool update_addr, 1551856835dSDaniel P. Berrange Error **errp) 156baacf047SPaolo Bonzini { 157baacf047SPaolo Bonzini struct addrinfo ai,*res,*e; 158baacf047SPaolo Bonzini char port[33]; 159baacf047SPaolo Bonzini char uaddr[INET6_ADDRSTRLEN+1]; 160baacf047SPaolo Bonzini char uport[33]; 1611856835dSDaniel P. Berrange int slisten, rc, port_min, port_max, p; 1621856835dSDaniel P. Berrange Error *err = NULL; 163baacf047SPaolo Bonzini 164baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 1653de3d698SWolfgang Bumiller ai.ai_flags = AI_PASSIVE; 1666979a813SDaniel P. Berrange if (saddr->has_numeric && saddr->numeric) { 1676979a813SDaniel P. Berrange ai.ai_flags |= AI_NUMERICHOST | AI_NUMERICSERV; 1686979a813SDaniel P. Berrange } 1691856835dSDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(saddr, &err); 170baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 171baacf047SPaolo Bonzini 1721856835dSDaniel P. Berrange if (err) { 1731856835dSDaniel P. Berrange error_propagate(errp, err); 1741856835dSDaniel P. Berrange return -1; 1751856835dSDaniel P. Berrange } 1761856835dSDaniel P. Berrange 1771856835dSDaniel P. Berrange if (saddr->host == NULL) { 1780983f5e6SDaniel P. Berrange error_setg(errp, "host not specified"); 179baacf047SPaolo Bonzini return -1; 180baacf047SPaolo Bonzini } 1811856835dSDaniel P. Berrange if (saddr->port != NULL) { 1821856835dSDaniel P. Berrange pstrcpy(port, sizeof(port), saddr->port); 1830983f5e6SDaniel P. Berrange } else { 1840983f5e6SDaniel P. Berrange port[0] = '\0'; 1850983f5e6SDaniel P. Berrange } 186baacf047SPaolo Bonzini 187baacf047SPaolo Bonzini /* lookup */ 1888bc89127SGerd Hoffmann if (port_offset) { 1898bc89127SGerd Hoffmann unsigned long long baseport; 1900983f5e6SDaniel P. Berrange if (strlen(port) == 0) { 1910983f5e6SDaniel P. Berrange error_setg(errp, "port not specified"); 1920983f5e6SDaniel P. Berrange return -1; 1930983f5e6SDaniel P. Berrange } 1948bc89127SGerd Hoffmann if (parse_uint_full(port, &baseport, 10) < 0) { 1958bc89127SGerd Hoffmann error_setg(errp, "can't convert to a number: %s", port); 1968bc89127SGerd Hoffmann return -1; 1978bc89127SGerd Hoffmann } 1988bc89127SGerd Hoffmann if (baseport > 65535 || 1998bc89127SGerd Hoffmann baseport + port_offset > 65535) { 2008bc89127SGerd Hoffmann error_setg(errp, "port %s out of range", port); 2018bc89127SGerd Hoffmann return -1; 2028bc89127SGerd Hoffmann } 2038bc89127SGerd Hoffmann snprintf(port, sizeof(port), "%d", (int)baseport + port_offset); 2048bc89127SGerd Hoffmann } 2051856835dSDaniel P. Berrange rc = getaddrinfo(strlen(saddr->host) ? saddr->host : NULL, 2060983f5e6SDaniel P. Berrange strlen(port) ? port : NULL, &ai, &res); 207baacf047SPaolo Bonzini if (rc != 0) { 2081856835dSDaniel P. Berrange error_setg(errp, "address resolution failed for %s:%s: %s", 2091856835dSDaniel P. Berrange saddr->host, port, gai_strerror(rc)); 210baacf047SPaolo Bonzini return -1; 211baacf047SPaolo Bonzini } 212baacf047SPaolo Bonzini 213baacf047SPaolo Bonzini /* create socket + bind */ 214baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 215baacf047SPaolo Bonzini getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen, 216baacf047SPaolo Bonzini uaddr,INET6_ADDRSTRLEN,uport,32, 217baacf047SPaolo Bonzini NI_NUMERICHOST | NI_NUMERICSERV); 218baacf047SPaolo Bonzini slisten = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol); 219baacf047SPaolo Bonzini if (slisten < 0) { 220baacf047SPaolo Bonzini if (!e->ai_next) { 221235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 222baacf047SPaolo Bonzini } 223baacf047SPaolo Bonzini continue; 224baacf047SPaolo Bonzini } 225baacf047SPaolo Bonzini 22604fd1c78SSebastian Ottlik socket_set_fast_reuse(slisten); 227baacf047SPaolo Bonzini 228baacf047SPaolo Bonzini port_min = inet_getport(e); 2291856835dSDaniel P. Berrange port_max = saddr->has_to ? saddr->to + port_offset : port_min; 230baacf047SPaolo Bonzini for (p = port_min; p <= port_max; p++) { 2315e059be4SDaniel P. Berrange #ifdef IPV6_V6ONLY 232*94bc0d19SDaniel P. Berrange /* 233*94bc0d19SDaniel P. Berrange * Deals with first & last cases in matrix in comment 234*94bc0d19SDaniel P. Berrange * for inet_ai_family_from_address(). 235*94bc0d19SDaniel P. Berrange */ 236*94bc0d19SDaniel P. Berrange int v6only = 237*94bc0d19SDaniel P. Berrange ((!saddr->has_ipv4 && !saddr->has_ipv6) || 238*94bc0d19SDaniel P. Berrange (saddr->has_ipv4 && saddr->ipv4 && 239*94bc0d19SDaniel P. Berrange saddr->has_ipv6 && saddr->ipv6)) ? 0 : 1; 2405e059be4SDaniel P. Berrange #endif 241baacf047SPaolo Bonzini inet_setport(e, p); 2425e059be4SDaniel P. Berrange #ifdef IPV6_V6ONLY 2435e059be4SDaniel P. Berrange rebind: 2445e059be4SDaniel P. Berrange if (e->ai_family == PF_INET6) { 2455e059be4SDaniel P. Berrange qemu_setsockopt(slisten, IPPROTO_IPV6, IPV6_V6ONLY, &v6only, 2465e059be4SDaniel P. Berrange sizeof(v6only)); 2475e059be4SDaniel P. Berrange } 2485e059be4SDaniel P. Berrange #endif 249baacf047SPaolo Bonzini if (bind(slisten, e->ai_addr, e->ai_addrlen) == 0) { 250baacf047SPaolo Bonzini goto listen; 251baacf047SPaolo Bonzini } 2525e059be4SDaniel P. Berrange 2535e059be4SDaniel P. Berrange #ifdef IPV6_V6ONLY 2545e059be4SDaniel P. Berrange /* If we got EADDRINUSE from an IPv6 bind & V6ONLY is unset, 2555e059be4SDaniel P. Berrange * it could be that the IPv4 port is already claimed, so retry 2565e059be4SDaniel P. Berrange * with V6ONLY set 2575e059be4SDaniel P. Berrange */ 2585e059be4SDaniel P. Berrange if (e->ai_family == PF_INET6 && errno == EADDRINUSE && !v6only) { 2595e059be4SDaniel P. Berrange v6only = 1; 2605e059be4SDaniel P. Berrange goto rebind; 2615e059be4SDaniel P. Berrange } 2625e059be4SDaniel P. Berrange #endif 2635e059be4SDaniel P. Berrange 264baacf047SPaolo Bonzini if (p == port_max) { 265baacf047SPaolo Bonzini if (!e->ai_next) { 266235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 267baacf047SPaolo Bonzini } 268baacf047SPaolo Bonzini } 269baacf047SPaolo Bonzini } 270baacf047SPaolo Bonzini closesocket(slisten); 271baacf047SPaolo Bonzini } 272baacf047SPaolo Bonzini freeaddrinfo(res); 273baacf047SPaolo Bonzini return -1; 274baacf047SPaolo Bonzini 275baacf047SPaolo Bonzini listen: 276baacf047SPaolo Bonzini if (listen(slisten,1) != 0) { 277235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 278baacf047SPaolo Bonzini closesocket(slisten); 279baacf047SPaolo Bonzini freeaddrinfo(res); 280baacf047SPaolo Bonzini return -1; 281baacf047SPaolo Bonzini } 2821856835dSDaniel P. Berrange if (update_addr) { 2831856835dSDaniel P. Berrange g_free(saddr->host); 2841856835dSDaniel P. Berrange saddr->host = g_strdup(uaddr); 2851856835dSDaniel P. Berrange g_free(saddr->port); 2861856835dSDaniel P. Berrange saddr->port = g_strdup_printf("%d", 2871856835dSDaniel P. Berrange inet_getport(e) - port_offset); 2881856835dSDaniel P. Berrange saddr->has_ipv6 = saddr->ipv6 = e->ai_family == PF_INET6; 2891856835dSDaniel P. Berrange saddr->has_ipv4 = saddr->ipv4 = e->ai_family != PF_INET6; 2901856835dSDaniel P. Berrange } 291baacf047SPaolo Bonzini freeaddrinfo(res); 292baacf047SPaolo Bonzini return slisten; 293baacf047SPaolo Bonzini } 294baacf047SPaolo Bonzini 295baacf047SPaolo Bonzini #ifdef _WIN32 296baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 297baacf047SPaolo Bonzini ((rc) == -EINPROGRESS || (rc) == -EWOULDBLOCK || (rc) == -WSAEALREADY) 298baacf047SPaolo Bonzini #else 299baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 300baacf047SPaolo Bonzini ((rc) == -EINPROGRESS) 301baacf047SPaolo Bonzini #endif 302baacf047SPaolo Bonzini 303baacf047SPaolo Bonzini /* Struct to store connect state for non blocking connect */ 304baacf047SPaolo Bonzini typedef struct ConnectState { 305baacf047SPaolo Bonzini int fd; 306baacf047SPaolo Bonzini struct addrinfo *addr_list; 307baacf047SPaolo Bonzini struct addrinfo *current_addr; 308baacf047SPaolo Bonzini NonBlockingConnectHandler *callback; 309baacf047SPaolo Bonzini void *opaque; 310baacf047SPaolo Bonzini } ConnectState; 311baacf047SPaolo Bonzini 312baacf047SPaolo Bonzini static int inet_connect_addr(struct addrinfo *addr, bool *in_progress, 313baacf047SPaolo Bonzini ConnectState *connect_state, Error **errp); 314baacf047SPaolo Bonzini 315baacf047SPaolo Bonzini static void wait_for_connect(void *opaque) 316baacf047SPaolo Bonzini { 317baacf047SPaolo Bonzini ConnectState *s = opaque; 318baacf047SPaolo Bonzini int val = 0, rc = 0; 319baacf047SPaolo Bonzini socklen_t valsize = sizeof(val); 320baacf047SPaolo Bonzini bool in_progress; 32151795029SCorey Minyard Error *err = NULL; 322baacf047SPaolo Bonzini 32382e1cc4bSFam Zheng qemu_set_fd_handler(s->fd, NULL, NULL, NULL); 324baacf047SPaolo Bonzini 325baacf047SPaolo Bonzini do { 3269957fc7fSStefan Weil rc = qemu_getsockopt(s->fd, SOL_SOCKET, SO_ERROR, &val, &valsize); 327b16a44e1SDaniel P. Berrange } while (rc == -1 && errno == EINTR); 328baacf047SPaolo Bonzini 329baacf047SPaolo Bonzini /* update rc to contain error */ 330baacf047SPaolo Bonzini if (!rc && val) { 331baacf047SPaolo Bonzini rc = -1; 33251795029SCorey Minyard errno = val; 333baacf047SPaolo Bonzini } 334baacf047SPaolo Bonzini 335baacf047SPaolo Bonzini /* connect error */ 336baacf047SPaolo Bonzini if (rc < 0) { 33751795029SCorey Minyard error_setg_errno(&err, errno, "Error connecting to socket"); 338baacf047SPaolo Bonzini closesocket(s->fd); 339baacf047SPaolo Bonzini s->fd = rc; 340baacf047SPaolo Bonzini } 341baacf047SPaolo Bonzini 342baacf047SPaolo Bonzini /* try to connect to the next address on the list */ 343baacf047SPaolo Bonzini if (s->current_addr) { 344baacf047SPaolo Bonzini while (s->current_addr->ai_next != NULL && s->fd < 0) { 345baacf047SPaolo Bonzini s->current_addr = s->current_addr->ai_next; 346baacf047SPaolo Bonzini s->fd = inet_connect_addr(s->current_addr, &in_progress, s, NULL); 34751795029SCorey Minyard if (s->fd < 0) { 34851795029SCorey Minyard error_free(err); 34951795029SCorey Minyard err = NULL; 35051795029SCorey Minyard error_setg_errno(&err, errno, "Unable to start socket connect"); 35151795029SCorey Minyard } 352baacf047SPaolo Bonzini /* connect in progress */ 353baacf047SPaolo Bonzini if (in_progress) { 35451795029SCorey Minyard goto out; 355baacf047SPaolo Bonzini } 356baacf047SPaolo Bonzini } 357baacf047SPaolo Bonzini 358baacf047SPaolo Bonzini freeaddrinfo(s->addr_list); 359baacf047SPaolo Bonzini } 360baacf047SPaolo Bonzini 361baacf047SPaolo Bonzini if (s->callback) { 36251795029SCorey Minyard s->callback(s->fd, err, s->opaque); 363baacf047SPaolo Bonzini } 364baacf047SPaolo Bonzini g_free(s); 36551795029SCorey Minyard out: 36651795029SCorey Minyard error_free(err); 367baacf047SPaolo Bonzini } 368baacf047SPaolo Bonzini 369baacf047SPaolo Bonzini static int inet_connect_addr(struct addrinfo *addr, bool *in_progress, 370baacf047SPaolo Bonzini ConnectState *connect_state, Error **errp) 371baacf047SPaolo Bonzini { 372baacf047SPaolo Bonzini int sock, rc; 373baacf047SPaolo Bonzini 374baacf047SPaolo Bonzini *in_progress = false; 375baacf047SPaolo Bonzini 376baacf047SPaolo Bonzini sock = qemu_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol); 377baacf047SPaolo Bonzini if (sock < 0) { 378235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 379baacf047SPaolo Bonzini return -1; 380baacf047SPaolo Bonzini } 38104fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 382baacf047SPaolo Bonzini if (connect_state != NULL) { 383f9e8caccSStefan Hajnoczi qemu_set_nonblock(sock); 384baacf047SPaolo Bonzini } 385baacf047SPaolo Bonzini /* connect to peer */ 386baacf047SPaolo Bonzini do { 387baacf047SPaolo Bonzini rc = 0; 388baacf047SPaolo Bonzini if (connect(sock, addr->ai_addr, addr->ai_addrlen) < 0) { 389b16a44e1SDaniel P. Berrange rc = -errno; 390baacf047SPaolo Bonzini } 391baacf047SPaolo Bonzini } while (rc == -EINTR); 392baacf047SPaolo Bonzini 393baacf047SPaolo Bonzini if (connect_state != NULL && QEMU_SOCKET_RC_INPROGRESS(rc)) { 394baacf047SPaolo Bonzini connect_state->fd = sock; 39582e1cc4bSFam Zheng qemu_set_fd_handler(sock, NULL, wait_for_connect, connect_state); 396baacf047SPaolo Bonzini *in_progress = true; 397baacf047SPaolo Bonzini } else if (rc < 0) { 398235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 399baacf047SPaolo Bonzini closesocket(sock); 400baacf047SPaolo Bonzini return -1; 401baacf047SPaolo Bonzini } 402baacf047SPaolo Bonzini return sock; 403baacf047SPaolo Bonzini } 404baacf047SPaolo Bonzini 4052942e420SDaniel P. Berrange static struct addrinfo *inet_parse_connect_saddr(InetSocketAddress *saddr, 4062942e420SDaniel P. Berrange Error **errp) 407baacf047SPaolo Bonzini { 408baacf047SPaolo Bonzini struct addrinfo ai, *res; 409baacf047SPaolo Bonzini int rc; 4102942e420SDaniel P. Berrange Error *err = NULL; 411340849a9SDaniel P. Berrange static int useV4Mapped = 1; 412baacf047SPaolo Bonzini 413baacf047SPaolo Bonzini memset(&ai, 0, sizeof(ai)); 414baacf047SPaolo Bonzini 415340849a9SDaniel P. Berrange ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG; 416340849a9SDaniel P. Berrange if (atomic_read(&useV4Mapped)) { 417340849a9SDaniel P. Berrange ai.ai_flags |= AI_V4MAPPED; 418340849a9SDaniel P. Berrange } 4192942e420SDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(saddr, &err); 420baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 421baacf047SPaolo Bonzini 4222942e420SDaniel P. Berrange if (err) { 4232942e420SDaniel P. Berrange error_propagate(errp, err); 4242942e420SDaniel P. Berrange return NULL; 4252942e420SDaniel P. Berrange } 4262942e420SDaniel P. Berrange 4272942e420SDaniel P. Berrange if (saddr->host == NULL || saddr->port == NULL) { 428baacf047SPaolo Bonzini error_setg(errp, "host and/or port not specified"); 429baacf047SPaolo Bonzini return NULL; 430baacf047SPaolo Bonzini } 431baacf047SPaolo Bonzini 432baacf047SPaolo Bonzini /* lookup */ 4332942e420SDaniel P. Berrange rc = getaddrinfo(saddr->host, saddr->port, &ai, &res); 434340849a9SDaniel P. Berrange 435340849a9SDaniel P. Berrange /* At least FreeBSD and OS-X 10.6 declare AI_V4MAPPED but 436340849a9SDaniel P. Berrange * then don't implement it in their getaddrinfo(). Detect 437340849a9SDaniel P. Berrange * this and retry without the flag since that's preferrable 438340849a9SDaniel P. Berrange * to a fatal error 439340849a9SDaniel P. Berrange */ 440340849a9SDaniel P. Berrange if (rc == EAI_BADFLAGS && 441340849a9SDaniel P. Berrange (ai.ai_flags & AI_V4MAPPED)) { 442340849a9SDaniel P. Berrange atomic_set(&useV4Mapped, 0); 443340849a9SDaniel P. Berrange ai.ai_flags &= ~AI_V4MAPPED; 444340849a9SDaniel P. Berrange rc = getaddrinfo(saddr->host, saddr->port, &ai, &res); 445340849a9SDaniel P. Berrange } 446baacf047SPaolo Bonzini if (rc != 0) { 4472942e420SDaniel P. Berrange error_setg(errp, "address resolution failed for %s:%s: %s", 4482942e420SDaniel P. Berrange saddr->host, saddr->port, gai_strerror(rc)); 449baacf047SPaolo Bonzini return NULL; 450baacf047SPaolo Bonzini } 451baacf047SPaolo Bonzini return res; 452baacf047SPaolo Bonzini } 453baacf047SPaolo Bonzini 454baacf047SPaolo Bonzini /** 455baacf047SPaolo Bonzini * Create a socket and connect it to an address. 456baacf047SPaolo Bonzini * 4572942e420SDaniel P. Berrange * @saddr: Inet socket address specification 458baacf047SPaolo Bonzini * @errp: set on error 459baacf047SPaolo Bonzini * @callback: callback function for non-blocking connect 460baacf047SPaolo Bonzini * @opaque: opaque for callback function 461baacf047SPaolo Bonzini * 462baacf047SPaolo Bonzini * Returns: -1 on error, file descriptor on success. 463baacf047SPaolo Bonzini * 464baacf047SPaolo Bonzini * If @callback is non-null, the connect is non-blocking. If this 465baacf047SPaolo Bonzini * function succeeds, callback will be called when the connection 466baacf047SPaolo Bonzini * completes, with the file descriptor on success, or -1 on error. 467baacf047SPaolo Bonzini */ 4686dffc1f6SFam Zheng int inet_connect_saddr(InetSocketAddress *saddr, 4696dffc1f6SFam Zheng NonBlockingConnectHandler *callback, void *opaque, 4706dffc1f6SFam Zheng Error **errp) 471baacf047SPaolo Bonzini { 4723f9286b7SMarkus Armbruster Error *local_err = NULL; 473baacf047SPaolo Bonzini struct addrinfo *res, *e; 474baacf047SPaolo Bonzini int sock = -1; 475baacf047SPaolo Bonzini bool in_progress; 476baacf047SPaolo Bonzini ConnectState *connect_state = NULL; 477baacf047SPaolo Bonzini 4782942e420SDaniel P. Berrange res = inet_parse_connect_saddr(saddr, errp); 479baacf047SPaolo Bonzini if (!res) { 480baacf047SPaolo Bonzini return -1; 481baacf047SPaolo Bonzini } 482baacf047SPaolo Bonzini 483baacf047SPaolo Bonzini if (callback != NULL) { 484baacf047SPaolo Bonzini connect_state = g_malloc0(sizeof(*connect_state)); 485baacf047SPaolo Bonzini connect_state->addr_list = res; 486baacf047SPaolo Bonzini connect_state->callback = callback; 487baacf047SPaolo Bonzini connect_state->opaque = opaque; 488baacf047SPaolo Bonzini } 489baacf047SPaolo Bonzini 490baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 4913f9286b7SMarkus Armbruster error_free(local_err); 4923f9286b7SMarkus Armbruster local_err = NULL; 493baacf047SPaolo Bonzini if (connect_state != NULL) { 494baacf047SPaolo Bonzini connect_state->current_addr = e; 495baacf047SPaolo Bonzini } 4963f9286b7SMarkus Armbruster sock = inet_connect_addr(e, &in_progress, connect_state, &local_err); 4973f9286b7SMarkus Armbruster if (sock >= 0) { 498baacf047SPaolo Bonzini break; 499baacf047SPaolo Bonzini } 500baacf047SPaolo Bonzini } 5013f9286b7SMarkus Armbruster 5023f9286b7SMarkus Armbruster if (sock < 0) { 5033f9286b7SMarkus Armbruster error_propagate(errp, local_err); 5043f9286b7SMarkus Armbruster } else if (in_progress) { 5053f9286b7SMarkus Armbruster /* wait_for_connect() will do the rest */ 5063f9286b7SMarkus Armbruster return sock; 5073f9286b7SMarkus Armbruster } else { 5083f9286b7SMarkus Armbruster if (callback) { 50951795029SCorey Minyard callback(sock, NULL, opaque); 5103f9286b7SMarkus Armbruster } 5113f9286b7SMarkus Armbruster } 512baacf047SPaolo Bonzini g_free(connect_state); 513baacf047SPaolo Bonzini freeaddrinfo(res); 514baacf047SPaolo Bonzini return sock; 515baacf047SPaolo Bonzini } 516baacf047SPaolo Bonzini 5178b39910eSDaniel P. Berrange static int inet_dgram_saddr(InetSocketAddress *sraddr, 5188b39910eSDaniel P. Berrange InetSocketAddress *sladdr, 5198b39910eSDaniel P. Berrange Error **errp) 520baacf047SPaolo Bonzini { 521baacf047SPaolo Bonzini struct addrinfo ai, *peer = NULL, *local = NULL; 522baacf047SPaolo Bonzini const char *addr; 523baacf047SPaolo Bonzini const char *port; 524baacf047SPaolo Bonzini int sock = -1, rc; 5258b39910eSDaniel P. Berrange Error *err = NULL; 526baacf047SPaolo Bonzini 527baacf047SPaolo Bonzini /* lookup peer addr */ 528baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 5293de3d698SWolfgang Bumiller ai.ai_flags = AI_CANONNAME | AI_V4MAPPED | AI_ADDRCONFIG; 5308b39910eSDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(sraddr, &err); 531baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 532baacf047SPaolo Bonzini 5338b39910eSDaniel P. Berrange if (err) { 5348b39910eSDaniel P. Berrange error_propagate(errp, err); 53558c652c0SPaolo Bonzini goto err; 5368b39910eSDaniel P. Berrange } 5378b39910eSDaniel P. Berrange 5388b39910eSDaniel P. Berrange addr = sraddr->host; 5398b39910eSDaniel P. Berrange port = sraddr->port; 540baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 541baacf047SPaolo Bonzini addr = "localhost"; 542baacf047SPaolo Bonzini } 543baacf047SPaolo Bonzini if (port == NULL || strlen(port) == 0) { 544baacf047SPaolo Bonzini error_setg(errp, "remote port not specified"); 54558c652c0SPaolo Bonzini goto err; 546baacf047SPaolo Bonzini } 547baacf047SPaolo Bonzini 5489cd1883cSCao jin if ((rc = getaddrinfo(addr, port, &ai, &peer)) != 0) { 549baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 550baacf047SPaolo Bonzini gai_strerror(rc)); 55158c652c0SPaolo Bonzini goto err; 552baacf047SPaolo Bonzini } 553baacf047SPaolo Bonzini 554baacf047SPaolo Bonzini /* lookup local addr */ 555baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 556baacf047SPaolo Bonzini ai.ai_flags = AI_PASSIVE; 557baacf047SPaolo Bonzini ai.ai_family = peer->ai_family; 558baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 559baacf047SPaolo Bonzini 5608b39910eSDaniel P. Berrange if (sladdr) { 5618b39910eSDaniel P. Berrange addr = sladdr->host; 5628b39910eSDaniel P. Berrange port = sladdr->port; 563baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 564baacf047SPaolo Bonzini addr = NULL; 565baacf047SPaolo Bonzini } 5668b39910eSDaniel P. Berrange if (!port || strlen(port) == 0) { 567baacf047SPaolo Bonzini port = "0"; 5688b39910eSDaniel P. Berrange } 5698b39910eSDaniel P. Berrange } else { 5708b39910eSDaniel P. Berrange addr = NULL; 5718b39910eSDaniel P. Berrange port = "0"; 5728b39910eSDaniel P. Berrange } 573baacf047SPaolo Bonzini 5749cd1883cSCao jin if ((rc = getaddrinfo(addr, port, &ai, &local)) != 0) { 575baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 576baacf047SPaolo Bonzini gai_strerror(rc)); 577baacf047SPaolo Bonzini goto err; 578baacf047SPaolo Bonzini } 579baacf047SPaolo Bonzini 580baacf047SPaolo Bonzini /* create socket */ 581baacf047SPaolo Bonzini sock = qemu_socket(peer->ai_family, peer->ai_socktype, peer->ai_protocol); 582baacf047SPaolo Bonzini if (sock < 0) { 583235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 584baacf047SPaolo Bonzini goto err; 585baacf047SPaolo Bonzini } 58604fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 587baacf047SPaolo Bonzini 588baacf047SPaolo Bonzini /* bind socket */ 589baacf047SPaolo Bonzini if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) { 590235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 591baacf047SPaolo Bonzini goto err; 592baacf047SPaolo Bonzini } 593baacf047SPaolo Bonzini 594baacf047SPaolo Bonzini /* connect to peer */ 595baacf047SPaolo Bonzini if (connect(sock,peer->ai_addr,peer->ai_addrlen) < 0) { 596235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 597baacf047SPaolo Bonzini goto err; 598baacf047SPaolo Bonzini } 599baacf047SPaolo Bonzini 600baacf047SPaolo Bonzini freeaddrinfo(local); 601baacf047SPaolo Bonzini freeaddrinfo(peer); 602baacf047SPaolo Bonzini return sock; 603baacf047SPaolo Bonzini 604baacf047SPaolo Bonzini err: 60526015051SCao jin if (sock != -1) { 606baacf047SPaolo Bonzini closesocket(sock); 60726015051SCao jin } 60826015051SCao jin if (local) { 609baacf047SPaolo Bonzini freeaddrinfo(local); 61026015051SCao jin } 61126015051SCao jin if (peer) { 612baacf047SPaolo Bonzini freeaddrinfo(peer); 61326015051SCao jin } 61426015051SCao jin 615baacf047SPaolo Bonzini return -1; 616baacf047SPaolo Bonzini } 617baacf047SPaolo Bonzini 618baacf047SPaolo Bonzini /* compatibility wrapper */ 6190785bd7aSMarkus Armbruster int inet_parse(InetSocketAddress *addr, const char *str, Error **errp) 620baacf047SPaolo Bonzini { 621baacf047SPaolo Bonzini const char *optstr, *h; 62255a10996SKevin Wolf char host[65]; 623baacf047SPaolo Bonzini char port[33]; 624baacf047SPaolo Bonzini int to; 625baacf047SPaolo Bonzini int pos; 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 } 667baacf047SPaolo Bonzini if (strstr(optstr, ",ipv4")) { 668baacf047SPaolo Bonzini addr->ipv4 = addr->has_ipv4 = true; 669baacf047SPaolo Bonzini } 670baacf047SPaolo Bonzini if (strstr(optstr, ",ipv6")) { 671baacf047SPaolo Bonzini addr->ipv6 = addr->has_ipv6 = true; 672baacf047SPaolo Bonzini } 6730785bd7aSMarkus Armbruster return 0; 674baacf047SPaolo Bonzini } 675baacf047SPaolo Bonzini 676baacf047SPaolo Bonzini 677baacf047SPaolo Bonzini /** 678baacf047SPaolo Bonzini * Create a blocking socket and connect it to an address. 679baacf047SPaolo Bonzini * 680baacf047SPaolo Bonzini * @str: address string 681baacf047SPaolo Bonzini * @errp: set in case of an error 682baacf047SPaolo Bonzini * 683baacf047SPaolo Bonzini * Returns -1 in case of error, file descriptor on success 684baacf047SPaolo Bonzini **/ 685baacf047SPaolo Bonzini int inet_connect(const char *str, Error **errp) 686baacf047SPaolo Bonzini { 687baacf047SPaolo Bonzini int sock = -1; 6880785bd7aSMarkus Armbruster InetSocketAddress *addr = g_new(InetSocketAddress, 1); 689baacf047SPaolo Bonzini 6900785bd7aSMarkus Armbruster if (!inet_parse(addr, str, errp)) { 6916dffc1f6SFam Zheng sock = inet_connect_saddr(addr, NULL, NULL, errp); 692baacf047SPaolo Bonzini } 6930785bd7aSMarkus Armbruster qapi_free_InetSocketAddress(addr); 694baacf047SPaolo Bonzini return sock; 695baacf047SPaolo Bonzini } 696baacf047SPaolo Bonzini 6976a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 6986a02c806SStefan Hajnoczi static bool vsock_parse_vaddr_to_sockaddr(const VsockSocketAddress *vaddr, 6996a02c806SStefan Hajnoczi struct sockaddr_vm *svm, 7006a02c806SStefan Hajnoczi Error **errp) 7016a02c806SStefan Hajnoczi { 7026a02c806SStefan Hajnoczi unsigned long long val; 7036a02c806SStefan Hajnoczi 7046a02c806SStefan Hajnoczi memset(svm, 0, sizeof(*svm)); 7056a02c806SStefan Hajnoczi svm->svm_family = AF_VSOCK; 7066a02c806SStefan Hajnoczi 7076a02c806SStefan Hajnoczi if (parse_uint_full(vaddr->cid, &val, 10) < 0 || 7086a02c806SStefan Hajnoczi val > UINT32_MAX) { 7096a02c806SStefan Hajnoczi error_setg(errp, "Failed to parse cid '%s'", vaddr->cid); 7106a02c806SStefan Hajnoczi return false; 7116a02c806SStefan Hajnoczi } 7126a02c806SStefan Hajnoczi svm->svm_cid = val; 7136a02c806SStefan Hajnoczi 7146a02c806SStefan Hajnoczi if (parse_uint_full(vaddr->port, &val, 10) < 0 || 7156a02c806SStefan Hajnoczi val > UINT32_MAX) { 7166a02c806SStefan Hajnoczi error_setg(errp, "Failed to parse port '%s'", vaddr->port); 7176a02c806SStefan Hajnoczi return false; 7186a02c806SStefan Hajnoczi } 7196a02c806SStefan Hajnoczi svm->svm_port = val; 7206a02c806SStefan Hajnoczi 7216a02c806SStefan Hajnoczi return true; 7226a02c806SStefan Hajnoczi } 7236a02c806SStefan Hajnoczi 7246a02c806SStefan Hajnoczi static int vsock_connect_addr(const struct sockaddr_vm *svm, bool *in_progress, 7256a02c806SStefan Hajnoczi ConnectState *connect_state, Error **errp) 7266a02c806SStefan Hajnoczi { 7276a02c806SStefan Hajnoczi int sock, rc; 7286a02c806SStefan Hajnoczi 7296a02c806SStefan Hajnoczi *in_progress = false; 7306a02c806SStefan Hajnoczi 7316a02c806SStefan Hajnoczi sock = qemu_socket(AF_VSOCK, SOCK_STREAM, 0); 7326a02c806SStefan Hajnoczi if (sock < 0) { 7336a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to create socket"); 7346a02c806SStefan Hajnoczi return -1; 7356a02c806SStefan Hajnoczi } 7366a02c806SStefan Hajnoczi if (connect_state != NULL) { 7376a02c806SStefan Hajnoczi qemu_set_nonblock(sock); 7386a02c806SStefan Hajnoczi } 7396a02c806SStefan Hajnoczi /* connect to peer */ 7406a02c806SStefan Hajnoczi do { 7416a02c806SStefan Hajnoczi rc = 0; 7426a02c806SStefan Hajnoczi if (connect(sock, (const struct sockaddr *)svm, sizeof(*svm)) < 0) { 7436a02c806SStefan Hajnoczi rc = -errno; 7446a02c806SStefan Hajnoczi } 7456a02c806SStefan Hajnoczi } while (rc == -EINTR); 7466a02c806SStefan Hajnoczi 7476a02c806SStefan Hajnoczi if (connect_state != NULL && QEMU_SOCKET_RC_INPROGRESS(rc)) { 7486a02c806SStefan Hajnoczi connect_state->fd = sock; 7496a02c806SStefan Hajnoczi qemu_set_fd_handler(sock, NULL, wait_for_connect, connect_state); 7506a02c806SStefan Hajnoczi *in_progress = true; 7516a02c806SStefan Hajnoczi } else if (rc < 0) { 7526a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to connect socket"); 7536a02c806SStefan Hajnoczi closesocket(sock); 7546a02c806SStefan Hajnoczi return -1; 7556a02c806SStefan Hajnoczi } 7566a02c806SStefan Hajnoczi return sock; 7576a02c806SStefan Hajnoczi } 7586a02c806SStefan Hajnoczi 7591a9a7f25SFam Zheng static int vsock_connect_saddr(VsockSocketAddress *vaddr, 7606a02c806SStefan Hajnoczi NonBlockingConnectHandler *callback, 7611a9a7f25SFam Zheng void *opaque, 7621a9a7f25SFam Zheng Error **errp) 7636a02c806SStefan Hajnoczi { 7646a02c806SStefan Hajnoczi struct sockaddr_vm svm; 7656a02c806SStefan Hajnoczi int sock = -1; 7666a02c806SStefan Hajnoczi bool in_progress; 7676a02c806SStefan Hajnoczi ConnectState *connect_state = NULL; 7686a02c806SStefan Hajnoczi 7696a02c806SStefan Hajnoczi if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) { 7706a02c806SStefan Hajnoczi return -1; 7716a02c806SStefan Hajnoczi } 7726a02c806SStefan Hajnoczi 7736a02c806SStefan Hajnoczi if (callback != NULL) { 7746a02c806SStefan Hajnoczi connect_state = g_malloc0(sizeof(*connect_state)); 7756a02c806SStefan Hajnoczi connect_state->callback = callback; 7766a02c806SStefan Hajnoczi connect_state->opaque = opaque; 7776a02c806SStefan Hajnoczi } 7786a02c806SStefan Hajnoczi 7796a02c806SStefan Hajnoczi sock = vsock_connect_addr(&svm, &in_progress, connect_state, errp); 7806a02c806SStefan Hajnoczi if (sock < 0) { 7816a02c806SStefan Hajnoczi /* do nothing */ 7826a02c806SStefan Hajnoczi } else if (in_progress) { 7836a02c806SStefan Hajnoczi /* wait_for_connect() will do the rest */ 7846a02c806SStefan Hajnoczi return sock; 7856a02c806SStefan Hajnoczi } else { 7866a02c806SStefan Hajnoczi if (callback) { 7876a02c806SStefan Hajnoczi callback(sock, NULL, opaque); 7886a02c806SStefan Hajnoczi } 7896a02c806SStefan Hajnoczi } 7906a02c806SStefan Hajnoczi g_free(connect_state); 7916a02c806SStefan Hajnoczi return sock; 7926a02c806SStefan Hajnoczi } 7936a02c806SStefan Hajnoczi 7946a02c806SStefan Hajnoczi static int vsock_listen_saddr(VsockSocketAddress *vaddr, 7956a02c806SStefan Hajnoczi Error **errp) 7966a02c806SStefan Hajnoczi { 7976a02c806SStefan Hajnoczi struct sockaddr_vm svm; 7986a02c806SStefan Hajnoczi int slisten; 7996a02c806SStefan Hajnoczi 8006a02c806SStefan Hajnoczi if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) { 8016a02c806SStefan Hajnoczi return -1; 8026a02c806SStefan Hajnoczi } 8036a02c806SStefan Hajnoczi 8046a02c806SStefan Hajnoczi slisten = qemu_socket(AF_VSOCK, SOCK_STREAM, 0); 8056a02c806SStefan Hajnoczi if (slisten < 0) { 8066a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to create socket"); 8076a02c806SStefan Hajnoczi return -1; 8086a02c806SStefan Hajnoczi } 8096a02c806SStefan Hajnoczi 8106a02c806SStefan Hajnoczi if (bind(slisten, (const struct sockaddr *)&svm, sizeof(svm)) != 0) { 8116a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to bind socket"); 8126a02c806SStefan Hajnoczi closesocket(slisten); 8136a02c806SStefan Hajnoczi return -1; 8146a02c806SStefan Hajnoczi } 8156a02c806SStefan Hajnoczi 8166a02c806SStefan Hajnoczi if (listen(slisten, 1) != 0) { 8176a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to listen on socket"); 8186a02c806SStefan Hajnoczi closesocket(slisten); 8196a02c806SStefan Hajnoczi return -1; 8206a02c806SStefan Hajnoczi } 8216a02c806SStefan Hajnoczi return slisten; 8226a02c806SStefan Hajnoczi } 8236a02c806SStefan Hajnoczi 8244db5c619SMarkus Armbruster static int vsock_parse(VsockSocketAddress *addr, const char *str, 8254db5c619SMarkus Armbruster Error **errp) 8266a02c806SStefan Hajnoczi { 8276a02c806SStefan Hajnoczi char cid[33]; 8286a02c806SStefan Hajnoczi char port[33]; 8296a02c806SStefan Hajnoczi int n; 8306a02c806SStefan Hajnoczi 8316a02c806SStefan Hajnoczi if (sscanf(str, "%32[^:]:%32[^,]%n", cid, port, &n) != 2) { 8326a02c806SStefan Hajnoczi error_setg(errp, "error parsing address '%s'", str); 8334db5c619SMarkus Armbruster return -1; 8346a02c806SStefan Hajnoczi } 8356a02c806SStefan Hajnoczi if (str[n] != '\0') { 8366a02c806SStefan Hajnoczi error_setg(errp, "trailing characters in address '%s'", str); 8374db5c619SMarkus Armbruster return -1; 8386a02c806SStefan Hajnoczi } 8396a02c806SStefan Hajnoczi 8406a02c806SStefan Hajnoczi addr->cid = g_strdup(cid); 8416a02c806SStefan Hajnoczi addr->port = g_strdup(port); 8424db5c619SMarkus Armbruster return 0; 8436a02c806SStefan Hajnoczi } 8446a02c806SStefan Hajnoczi #else 8456a02c806SStefan Hajnoczi static void vsock_unsupported(Error **errp) 8466a02c806SStefan Hajnoczi { 8476a02c806SStefan Hajnoczi error_setg(errp, "socket family AF_VSOCK unsupported"); 8486a02c806SStefan Hajnoczi } 8496a02c806SStefan Hajnoczi 8501a9a7f25SFam Zheng static int vsock_connect_saddr(VsockSocketAddress *vaddr, 8516a02c806SStefan Hajnoczi NonBlockingConnectHandler *callback, 8521a9a7f25SFam Zheng void *opaque, Error **errp) 8536a02c806SStefan Hajnoczi { 8546a02c806SStefan Hajnoczi vsock_unsupported(errp); 8556a02c806SStefan Hajnoczi return -1; 8566a02c806SStefan Hajnoczi } 8576a02c806SStefan Hajnoczi 8586a02c806SStefan Hajnoczi static int vsock_listen_saddr(VsockSocketAddress *vaddr, 8596a02c806SStefan Hajnoczi Error **errp) 8606a02c806SStefan Hajnoczi { 8616a02c806SStefan Hajnoczi vsock_unsupported(errp); 8626a02c806SStefan Hajnoczi return -1; 8636a02c806SStefan Hajnoczi } 8646a02c806SStefan Hajnoczi 8654db5c619SMarkus Armbruster static int vsock_parse(VsockSocketAddress *addr, const char *str, 8664db5c619SMarkus Armbruster Error **errp) 8676a02c806SStefan Hajnoczi { 8686a02c806SStefan Hajnoczi vsock_unsupported(errp); 8694db5c619SMarkus Armbruster return -1; 8706a02c806SStefan Hajnoczi } 8716a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 8726a02c806SStefan Hajnoczi 873baacf047SPaolo Bonzini #ifndef _WIN32 874baacf047SPaolo Bonzini 8751856835dSDaniel P. Berrange static int unix_listen_saddr(UnixSocketAddress *saddr, 8761856835dSDaniel P. Berrange bool update_addr, 8771856835dSDaniel P. Berrange Error **errp) 878baacf047SPaolo Bonzini { 879baacf047SPaolo Bonzini struct sockaddr_un un; 880baacf047SPaolo Bonzini int sock, fd; 881ad9579aaSDaniel P. Berrange char *pathbuf = NULL; 882ad9579aaSDaniel P. Berrange const char *path; 883baacf047SPaolo Bonzini 884baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 885baacf047SPaolo Bonzini if (sock < 0) { 886b658c53dSPaolo Bonzini error_setg_errno(errp, errno, "Failed to create Unix socket"); 887baacf047SPaolo Bonzini return -1; 888baacf047SPaolo Bonzini } 889baacf047SPaolo Bonzini 890ad9579aaSDaniel P. Berrange if (saddr->path && saddr->path[0]) { 891ad9579aaSDaniel P. Berrange path = saddr->path; 892baacf047SPaolo Bonzini } else { 893b658c53dSPaolo Bonzini const char *tmpdir = getenv("TMPDIR"); 894b658c53dSPaolo Bonzini tmpdir = tmpdir ? tmpdir : "/tmp"; 895ad9579aaSDaniel P. Berrange path = pathbuf = g_strdup_printf("%s/qemu-socket-XXXXXX", tmpdir); 896ad9579aaSDaniel P. Berrange } 897ad9579aaSDaniel P. Berrange 898ad9579aaSDaniel P. Berrange if (strlen(path) > sizeof(un.sun_path)) { 899ad9579aaSDaniel P. Berrange error_setg(errp, "UNIX socket path '%s' is too long", path); 900ad9579aaSDaniel P. Berrange error_append_hint(errp, "Path must be less than %zu bytes\n", 901ad9579aaSDaniel P. Berrange sizeof(un.sun_path)); 902b658c53dSPaolo Bonzini goto err; 903b658c53dSPaolo Bonzini } 904b658c53dSPaolo Bonzini 905ad9579aaSDaniel P. Berrange if (pathbuf != NULL) { 906baacf047SPaolo Bonzini /* 907baacf047SPaolo Bonzini * This dummy fd usage silences the mktemp() unsecure warning. 908baacf047SPaolo Bonzini * Using mkstemp() doesn't make things more secure here 909baacf047SPaolo Bonzini * though. bind() complains about existing files, so we have 910baacf047SPaolo Bonzini * to unlink first and thus re-open the race window. The 911baacf047SPaolo Bonzini * worst case possible is bind() failing, i.e. a DoS attack. 912baacf047SPaolo Bonzini */ 913ad9579aaSDaniel P. Berrange fd = mkstemp(pathbuf); 914b658c53dSPaolo Bonzini if (fd < 0) { 915b658c53dSPaolo Bonzini error_setg_errno(errp, errno, 916ad9579aaSDaniel P. Berrange "Failed to make a temporary socket %s", pathbuf); 917b658c53dSPaolo Bonzini goto err; 918b658c53dSPaolo Bonzini } 919b658c53dSPaolo Bonzini close(fd); 920baacf047SPaolo Bonzini } 921baacf047SPaolo Bonzini 922ad9579aaSDaniel P. Berrange if (unlink(path) < 0 && errno != ENOENT) { 9230ef705a2SCole Robinson error_setg_errno(errp, errno, 924ad9579aaSDaniel P. Berrange "Failed to unlink socket %s", path); 9250ef705a2SCole Robinson goto err; 9260ef705a2SCole Robinson } 927ad9579aaSDaniel P. Berrange 928ad9579aaSDaniel P. Berrange memset(&un, 0, sizeof(un)); 929ad9579aaSDaniel P. Berrange un.sun_family = AF_UNIX; 930ad9579aaSDaniel P. Berrange strncpy(un.sun_path, path, sizeof(un.sun_path)); 931ad9579aaSDaniel P. Berrange 932baacf047SPaolo Bonzini if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) { 93356382bd5SDaniel P. Berrange error_setg_errno(errp, errno, "Failed to bind socket to %s", path); 934baacf047SPaolo Bonzini goto err; 935baacf047SPaolo Bonzini } 936baacf047SPaolo Bonzini if (listen(sock, 1) < 0) { 937235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 938baacf047SPaolo Bonzini goto err; 939baacf047SPaolo Bonzini } 940baacf047SPaolo Bonzini 941ad9579aaSDaniel P. Berrange if (update_addr && pathbuf) { 942ad9579aaSDaniel P. Berrange g_free(saddr->path); 943ad9579aaSDaniel P. Berrange saddr->path = pathbuf; 944ad9579aaSDaniel P. Berrange } else { 945ad9579aaSDaniel P. Berrange g_free(pathbuf); 946ad9579aaSDaniel P. Berrange } 947baacf047SPaolo Bonzini return sock; 948baacf047SPaolo Bonzini 949baacf047SPaolo Bonzini err: 950ad9579aaSDaniel P. Berrange g_free(pathbuf); 951baacf047SPaolo Bonzini closesocket(sock); 952baacf047SPaolo Bonzini return -1; 953baacf047SPaolo Bonzini } 954baacf047SPaolo Bonzini 9552bdc6791SFam Zheng static int unix_connect_saddr(UnixSocketAddress *saddr, 9562bdc6791SFam Zheng NonBlockingConnectHandler *callback, void *opaque, 9572bdc6791SFam Zheng Error **errp) 958baacf047SPaolo Bonzini { 959baacf047SPaolo Bonzini struct sockaddr_un un; 960baacf047SPaolo Bonzini ConnectState *connect_state = NULL; 961baacf047SPaolo Bonzini int sock, rc; 962baacf047SPaolo Bonzini 9632942e420SDaniel P. Berrange if (saddr->path == NULL) { 964312fd5f2SMarkus Armbruster error_setg(errp, "unix connect: no path specified"); 965baacf047SPaolo Bonzini return -1; 966baacf047SPaolo Bonzini } 967baacf047SPaolo Bonzini 968baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 969baacf047SPaolo Bonzini if (sock < 0) { 970235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 971baacf047SPaolo Bonzini return -1; 972baacf047SPaolo Bonzini } 973baacf047SPaolo Bonzini if (callback != NULL) { 974baacf047SPaolo Bonzini connect_state = g_malloc0(sizeof(*connect_state)); 975baacf047SPaolo Bonzini connect_state->callback = callback; 976baacf047SPaolo Bonzini connect_state->opaque = opaque; 977f9e8caccSStefan Hajnoczi qemu_set_nonblock(sock); 978baacf047SPaolo Bonzini } 979baacf047SPaolo Bonzini 980ad9579aaSDaniel P. Berrange if (strlen(saddr->path) > sizeof(un.sun_path)) { 981ad9579aaSDaniel P. Berrange error_setg(errp, "UNIX socket path '%s' is too long", saddr->path); 982ad9579aaSDaniel P. Berrange error_append_hint(errp, "Path must be less than %zu bytes\n", 983ad9579aaSDaniel P. Berrange sizeof(un.sun_path)); 984ad9579aaSDaniel P. Berrange goto err; 985ad9579aaSDaniel P. Berrange } 986ad9579aaSDaniel P. Berrange 987baacf047SPaolo Bonzini memset(&un, 0, sizeof(un)); 988baacf047SPaolo Bonzini un.sun_family = AF_UNIX; 989ad9579aaSDaniel P. Berrange strncpy(un.sun_path, saddr->path, sizeof(un.sun_path)); 990baacf047SPaolo Bonzini 991baacf047SPaolo Bonzini /* connect to peer */ 992baacf047SPaolo Bonzini do { 993baacf047SPaolo Bonzini rc = 0; 994baacf047SPaolo Bonzini if (connect(sock, (struct sockaddr *) &un, sizeof(un)) < 0) { 995b16a44e1SDaniel P. Berrange rc = -errno; 996baacf047SPaolo Bonzini } 997baacf047SPaolo Bonzini } while (rc == -EINTR); 998baacf047SPaolo Bonzini 999baacf047SPaolo Bonzini if (connect_state != NULL && QEMU_SOCKET_RC_INPROGRESS(rc)) { 1000baacf047SPaolo Bonzini connect_state->fd = sock; 100182e1cc4bSFam Zheng qemu_set_fd_handler(sock, NULL, wait_for_connect, connect_state); 1002baacf047SPaolo Bonzini return sock; 1003baacf047SPaolo Bonzini } else if (rc >= 0) { 1004baacf047SPaolo Bonzini /* non blocking socket immediate success, call callback */ 1005baacf047SPaolo Bonzini if (callback != NULL) { 100651795029SCorey Minyard callback(sock, NULL, opaque); 1007baacf047SPaolo Bonzini } 1008baacf047SPaolo Bonzini } 1009baacf047SPaolo Bonzini 1010baacf047SPaolo Bonzini if (rc < 0) { 1011ad9579aaSDaniel P. Berrange error_setg_errno(errp, -rc, "Failed to connect socket %s", 1012ad9579aaSDaniel P. Berrange saddr->path); 1013ad9579aaSDaniel P. Berrange goto err; 1014baacf047SPaolo Bonzini } 1015baacf047SPaolo Bonzini 1016baacf047SPaolo Bonzini g_free(connect_state); 1017baacf047SPaolo Bonzini return sock; 1018ad9579aaSDaniel P. Berrange 1019ad9579aaSDaniel P. Berrange err: 1020ad9579aaSDaniel P. Berrange close(sock); 1021ad9579aaSDaniel P. Berrange g_free(connect_state); 1022ad9579aaSDaniel P. Berrange return -1; 1023baacf047SPaolo Bonzini } 1024baacf047SPaolo Bonzini 1025baacf047SPaolo Bonzini #else 1026baacf047SPaolo Bonzini 10271856835dSDaniel P. Berrange static int unix_listen_saddr(UnixSocketAddress *saddr, 10281856835dSDaniel P. Berrange bool update_addr, 10291856835dSDaniel P. Berrange Error **errp) 1030baacf047SPaolo Bonzini { 1031baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 1032baacf047SPaolo Bonzini errno = ENOTSUP; 1033baacf047SPaolo Bonzini return -1; 1034baacf047SPaolo Bonzini } 1035baacf047SPaolo Bonzini 10362bdc6791SFam Zheng static int unix_connect_saddr(UnixSocketAddress *saddr, 10372bdc6791SFam Zheng NonBlockingConnectHandler *callback, void *opaque, 10382bdc6791SFam Zheng Error **errp) 1039baacf047SPaolo Bonzini { 1040baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 1041baacf047SPaolo Bonzini errno = ENOTSUP; 1042baacf047SPaolo Bonzini return -1; 1043baacf047SPaolo Bonzini } 1044baacf047SPaolo Bonzini #endif 1045baacf047SPaolo Bonzini 1046baacf047SPaolo Bonzini /* compatibility wrapper */ 1047baacf047SPaolo Bonzini int unix_listen(const char *str, char *ostr, int olen, Error **errp) 1048baacf047SPaolo Bonzini { 1049baacf047SPaolo Bonzini char *path, *optstr; 1050baacf047SPaolo Bonzini int sock, len; 10511856835dSDaniel P. Berrange UnixSocketAddress *saddr; 1052baacf047SPaolo Bonzini 10531856835dSDaniel P. Berrange saddr = g_new0(UnixSocketAddress, 1); 1054baacf047SPaolo Bonzini 1055baacf047SPaolo Bonzini optstr = strchr(str, ','); 1056baacf047SPaolo Bonzini if (optstr) { 1057baacf047SPaolo Bonzini len = optstr - str; 1058baacf047SPaolo Bonzini if (len) { 1059baacf047SPaolo Bonzini path = g_malloc(len+1); 1060baacf047SPaolo Bonzini snprintf(path, len+1, "%.*s", len, str); 10611856835dSDaniel P. Berrange saddr->path = path; 1062baacf047SPaolo Bonzini } 1063baacf047SPaolo Bonzini } else { 10641856835dSDaniel P. Berrange saddr->path = g_strdup(str); 1065baacf047SPaolo Bonzini } 1066baacf047SPaolo Bonzini 10671856835dSDaniel P. Berrange sock = unix_listen_saddr(saddr, true, errp); 1068baacf047SPaolo Bonzini 106926015051SCao jin if (sock != -1 && ostr) { 10701856835dSDaniel P. Berrange snprintf(ostr, olen, "%s%s", saddr->path, optstr ? optstr : ""); 107126015051SCao jin } 107226015051SCao jin 10731856835dSDaniel P. Berrange qapi_free_UnixSocketAddress(saddr); 1074baacf047SPaolo Bonzini return sock; 1075baacf047SPaolo Bonzini } 1076baacf047SPaolo Bonzini 1077baacf047SPaolo Bonzini int unix_connect(const char *path, Error **errp) 1078baacf047SPaolo Bonzini { 10792942e420SDaniel P. Berrange UnixSocketAddress *saddr; 1080baacf047SPaolo Bonzini int sock; 1081baacf047SPaolo Bonzini 10822942e420SDaniel P. Berrange saddr = g_new0(UnixSocketAddress, 1); 10832942e420SDaniel P. Berrange saddr->path = g_strdup(path); 10842bdc6791SFam Zheng sock = unix_connect_saddr(saddr, NULL, NULL, errp); 10852942e420SDaniel P. Berrange qapi_free_UnixSocketAddress(saddr); 1086baacf047SPaolo Bonzini return sock; 1087baacf047SPaolo Bonzini } 1088baacf047SPaolo Bonzini 1089baacf047SPaolo Bonzini 1090bd269ebcSMarkus Armbruster SocketAddress *socket_parse(const char *str, Error **errp) 1091baacf047SPaolo Bonzini { 1092bd269ebcSMarkus Armbruster SocketAddress *addr; 1093baacf047SPaolo Bonzini 1094bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1095baacf047SPaolo Bonzini if (strstart(str, "unix:", NULL)) { 1096baacf047SPaolo Bonzini if (str[5] == '\0') { 1097312fd5f2SMarkus Armbruster error_setg(errp, "invalid Unix socket address"); 1098baacf047SPaolo Bonzini goto fail; 1099baacf047SPaolo Bonzini } else { 1100bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 1101bd269ebcSMarkus Armbruster addr->u.q_unix.path = g_strdup(str + 5); 1102baacf047SPaolo Bonzini } 1103baacf047SPaolo Bonzini } else if (strstart(str, "fd:", NULL)) { 1104baacf047SPaolo Bonzini if (str[3] == '\0') { 1105312fd5f2SMarkus Armbruster error_setg(errp, "invalid file descriptor address"); 1106baacf047SPaolo Bonzini goto fail; 1107baacf047SPaolo Bonzini } else { 1108bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_FD; 1109bd269ebcSMarkus Armbruster addr->u.fd.str = g_strdup(str + 3); 1110baacf047SPaolo Bonzini } 11116a02c806SStefan Hajnoczi } else if (strstart(str, "vsock:", NULL)) { 1112bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1113bd269ebcSMarkus Armbruster if (vsock_parse(&addr->u.vsock, str + strlen("vsock:"), errp)) { 11146a02c806SStefan Hajnoczi goto fail; 11156a02c806SStefan Hajnoczi } 1116baacf047SPaolo Bonzini } else { 1117bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1118bd269ebcSMarkus Armbruster if (inet_parse(&addr->u.inet, str, errp)) { 1119baacf047SPaolo Bonzini goto fail; 1120baacf047SPaolo Bonzini } 1121baacf047SPaolo Bonzini } 1122baacf047SPaolo Bonzini return addr; 1123baacf047SPaolo Bonzini 1124baacf047SPaolo Bonzini fail: 1125bd269ebcSMarkus Armbruster qapi_free_SocketAddress(addr); 1126baacf047SPaolo Bonzini return NULL; 1127baacf047SPaolo Bonzini } 1128baacf047SPaolo Bonzini 1129bd269ebcSMarkus Armbruster int socket_connect(SocketAddress *addr, NonBlockingConnectHandler *callback, 1130226799ceSFam Zheng void *opaque, Error **errp) 1131baacf047SPaolo Bonzini { 1132baacf047SPaolo Bonzini int fd; 1133baacf047SPaolo Bonzini 11342d32addaSEric Blake switch (addr->type) { 1135bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1136bd269ebcSMarkus Armbruster fd = inet_connect_saddr(&addr->u.inet, callback, opaque, errp); 1137baacf047SPaolo Bonzini break; 1138baacf047SPaolo Bonzini 1139bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_UNIX: 1140bd269ebcSMarkus Armbruster fd = unix_connect_saddr(&addr->u.q_unix, callback, opaque, errp); 1141baacf047SPaolo Bonzini break; 1142baacf047SPaolo Bonzini 1143bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_FD: 1144bd269ebcSMarkus Armbruster fd = monitor_get_fd(cur_mon, addr->u.fd.str, errp); 1145d1ec72a4SGerd Hoffmann if (fd >= 0 && callback) { 11461a751ebfSStefan Hajnoczi qemu_set_nonblock(fd); 114751795029SCorey Minyard callback(fd, NULL, opaque); 1148baacf047SPaolo Bonzini } 1149baacf047SPaolo Bonzini break; 1150baacf047SPaolo Bonzini 1151bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_VSOCK: 1152bd269ebcSMarkus Armbruster fd = vsock_connect_saddr(&addr->u.vsock, callback, opaque, errp); 11536a02c806SStefan Hajnoczi break; 11546a02c806SStefan Hajnoczi 1155baacf047SPaolo Bonzini default: 1156baacf047SPaolo Bonzini abort(); 1157baacf047SPaolo Bonzini } 1158baacf047SPaolo Bonzini return fd; 1159baacf047SPaolo Bonzini } 1160baacf047SPaolo Bonzini 1161bd269ebcSMarkus Armbruster int socket_listen(SocketAddress *addr, Error **errp) 1162baacf047SPaolo Bonzini { 1163baacf047SPaolo Bonzini int fd; 1164baacf047SPaolo Bonzini 11652d32addaSEric Blake switch (addr->type) { 1166bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1167bd269ebcSMarkus Armbruster fd = inet_listen_saddr(&addr->u.inet, 0, false, errp); 1168baacf047SPaolo Bonzini break; 1169baacf047SPaolo Bonzini 1170bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_UNIX: 1171bd269ebcSMarkus Armbruster fd = unix_listen_saddr(&addr->u.q_unix, false, errp); 1172baacf047SPaolo Bonzini break; 1173baacf047SPaolo Bonzini 1174bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_FD: 1175bd269ebcSMarkus Armbruster fd = monitor_get_fd(cur_mon, addr->u.fd.str, errp); 1176baacf047SPaolo Bonzini break; 1177baacf047SPaolo Bonzini 1178bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_VSOCK: 1179bd269ebcSMarkus Armbruster fd = vsock_listen_saddr(&addr->u.vsock, errp); 11806a02c806SStefan Hajnoczi break; 11816a02c806SStefan Hajnoczi 1182baacf047SPaolo Bonzini default: 1183baacf047SPaolo Bonzini abort(); 1184baacf047SPaolo Bonzini } 1185baacf047SPaolo Bonzini return fd; 1186baacf047SPaolo Bonzini } 1187baacf047SPaolo Bonzini 118874b6ce43SMarc-André Lureau void socket_listen_cleanup(int fd, Error **errp) 118974b6ce43SMarc-André Lureau { 1190bd269ebcSMarkus Armbruster SocketAddress *addr; 119174b6ce43SMarc-André Lureau 119274b6ce43SMarc-André Lureau addr = socket_local_address(fd, errp); 119374b6ce43SMarc-André Lureau 1194bd269ebcSMarkus Armbruster if (addr->type == SOCKET_ADDRESS_TYPE_UNIX 1195bd269ebcSMarkus Armbruster && addr->u.q_unix.path) { 1196bd269ebcSMarkus Armbruster if (unlink(addr->u.q_unix.path) < 0 && errno != ENOENT) { 119774b6ce43SMarc-André Lureau error_setg_errno(errp, errno, 119874b6ce43SMarc-André Lureau "Failed to unlink socket %s", 1199bd269ebcSMarkus Armbruster addr->u.q_unix.path); 120074b6ce43SMarc-André Lureau } 120174b6ce43SMarc-André Lureau } 120274b6ce43SMarc-André Lureau 1203bd269ebcSMarkus Armbruster qapi_free_SocketAddress(addr); 120474b6ce43SMarc-André Lureau } 120574b6ce43SMarc-André Lureau 1206bd269ebcSMarkus Armbruster int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp) 12073ecc059dSGerd Hoffmann { 12083ecc059dSGerd Hoffmann int fd; 12093ecc059dSGerd Hoffmann 1210ca0b64e5SMarkus Armbruster /* 1211bd269ebcSMarkus Armbruster * TODO SOCKET_ADDRESS_TYPE_FD when fd is AF_INET or AF_INET6 1212ca0b64e5SMarkus Armbruster * (although other address families can do SOCK_DGRAM, too) 1213ca0b64e5SMarkus Armbruster */ 12142d32addaSEric Blake switch (remote->type) { 1215bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1216bd269ebcSMarkus Armbruster fd = inet_dgram_saddr(&remote->u.inet, 1217bd269ebcSMarkus Armbruster local ? &local->u.inet : NULL, errp); 12183ecc059dSGerd Hoffmann break; 12193ecc059dSGerd Hoffmann 12203ecc059dSGerd Hoffmann default: 12213ecc059dSGerd Hoffmann error_setg(errp, "socket type unsupported for datagram"); 12227a5b6af1SGerd Hoffmann fd = -1; 12233ecc059dSGerd Hoffmann } 12243ecc059dSGerd Hoffmann return fd; 12253ecc059dSGerd Hoffmann } 122617c55decSDaniel P. Berrange 122717c55decSDaniel P. Berrange 1228bd269ebcSMarkus Armbruster static SocketAddress * 122917c55decSDaniel P. Berrange socket_sockaddr_to_address_inet(struct sockaddr_storage *sa, 123017c55decSDaniel P. Berrange socklen_t salen, 123117c55decSDaniel P. Berrange Error **errp) 123217c55decSDaniel P. Berrange { 123317c55decSDaniel P. Berrange char host[NI_MAXHOST]; 123417c55decSDaniel P. Berrange char serv[NI_MAXSERV]; 1235bd269ebcSMarkus Armbruster SocketAddress *addr; 12360399293eSEric Blake InetSocketAddress *inet; 123717c55decSDaniel P. Berrange int ret; 123817c55decSDaniel P. Berrange 123917c55decSDaniel P. Berrange ret = getnameinfo((struct sockaddr *)sa, salen, 124017c55decSDaniel P. Berrange host, sizeof(host), 124117c55decSDaniel P. Berrange serv, sizeof(serv), 124217c55decSDaniel P. Berrange NI_NUMERICHOST | NI_NUMERICSERV); 124317c55decSDaniel P. Berrange if (ret != 0) { 124417c55decSDaniel P. Berrange error_setg(errp, "Cannot format numeric socket address: %s", 124517c55decSDaniel P. Berrange gai_strerror(ret)); 124617c55decSDaniel P. Berrange return NULL; 124717c55decSDaniel P. Berrange } 124817c55decSDaniel P. Berrange 1249bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1250bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1251bd269ebcSMarkus Armbruster inet = &addr->u.inet; 12520399293eSEric Blake inet->host = g_strdup(host); 12530399293eSEric Blake inet->port = g_strdup(serv); 125417c55decSDaniel P. Berrange if (sa->ss_family == AF_INET) { 12550399293eSEric Blake inet->has_ipv4 = inet->ipv4 = true; 125617c55decSDaniel P. Berrange } else { 12570399293eSEric Blake inet->has_ipv6 = inet->ipv6 = true; 125817c55decSDaniel P. Berrange } 125917c55decSDaniel P. Berrange 126017c55decSDaniel P. Berrange return addr; 126117c55decSDaniel P. Berrange } 126217c55decSDaniel P. Berrange 126317c55decSDaniel P. Berrange 126417c55decSDaniel P. Berrange #ifndef WIN32 1265bd269ebcSMarkus Armbruster static SocketAddress * 126617c55decSDaniel P. Berrange socket_sockaddr_to_address_unix(struct sockaddr_storage *sa, 126717c55decSDaniel P. Berrange socklen_t salen, 126817c55decSDaniel P. Berrange Error **errp) 126917c55decSDaniel P. Berrange { 1270bd269ebcSMarkus Armbruster SocketAddress *addr; 127117c55decSDaniel P. Berrange struct sockaddr_un *su = (struct sockaddr_un *)sa; 127217c55decSDaniel P. Berrange 1273bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1274bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 127517c55decSDaniel P. Berrange if (su->sun_path[0]) { 1276bd269ebcSMarkus Armbruster addr->u.q_unix.path = g_strndup(su->sun_path, sizeof(su->sun_path)); 127717c55decSDaniel P. Berrange } 127817c55decSDaniel P. Berrange 127917c55decSDaniel P. Berrange return addr; 128017c55decSDaniel P. Berrange } 128117c55decSDaniel P. Berrange #endif /* WIN32 */ 128217c55decSDaniel P. Berrange 12836a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 1284bd269ebcSMarkus Armbruster static SocketAddress * 12856a02c806SStefan Hajnoczi socket_sockaddr_to_address_vsock(struct sockaddr_storage *sa, 12866a02c806SStefan Hajnoczi socklen_t salen, 12876a02c806SStefan Hajnoczi Error **errp) 12886a02c806SStefan Hajnoczi { 1289bd269ebcSMarkus Armbruster SocketAddress *addr; 12906a02c806SStefan Hajnoczi VsockSocketAddress *vaddr; 12916a02c806SStefan Hajnoczi struct sockaddr_vm *svm = (struct sockaddr_vm *)sa; 12926a02c806SStefan Hajnoczi 1293bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1294bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1295bd269ebcSMarkus Armbruster vaddr = &addr->u.vsock; 12966a02c806SStefan Hajnoczi vaddr->cid = g_strdup_printf("%u", svm->svm_cid); 12976a02c806SStefan Hajnoczi vaddr->port = g_strdup_printf("%u", svm->svm_port); 12986a02c806SStefan Hajnoczi 12996a02c806SStefan Hajnoczi return addr; 13006a02c806SStefan Hajnoczi } 13016a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 13026a02c806SStefan Hajnoczi 1303bd269ebcSMarkus Armbruster SocketAddress * 130417c55decSDaniel P. Berrange socket_sockaddr_to_address(struct sockaddr_storage *sa, 130517c55decSDaniel P. Berrange socklen_t salen, 130617c55decSDaniel P. Berrange Error **errp) 130717c55decSDaniel P. Berrange { 130817c55decSDaniel P. Berrange switch (sa->ss_family) { 130917c55decSDaniel P. Berrange case AF_INET: 131017c55decSDaniel P. Berrange case AF_INET6: 131117c55decSDaniel P. Berrange return socket_sockaddr_to_address_inet(sa, salen, errp); 131217c55decSDaniel P. Berrange 131317c55decSDaniel P. Berrange #ifndef WIN32 131417c55decSDaniel P. Berrange case AF_UNIX: 131517c55decSDaniel P. Berrange return socket_sockaddr_to_address_unix(sa, salen, errp); 131617c55decSDaniel P. Berrange #endif /* WIN32 */ 131717c55decSDaniel P. Berrange 13186a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 13196a02c806SStefan Hajnoczi case AF_VSOCK: 13206a02c806SStefan Hajnoczi return socket_sockaddr_to_address_vsock(sa, salen, errp); 13216a02c806SStefan Hajnoczi #endif 13226a02c806SStefan Hajnoczi 132317c55decSDaniel P. Berrange default: 132417c55decSDaniel P. Berrange error_setg(errp, "socket family %d unsupported", 132517c55decSDaniel P. Berrange sa->ss_family); 132617c55decSDaniel P. Berrange return NULL; 132717c55decSDaniel P. Berrange } 132817c55decSDaniel P. Berrange return 0; 132917c55decSDaniel P. Berrange } 133017c55decSDaniel P. Berrange 133117c55decSDaniel P. Berrange 1332bd269ebcSMarkus Armbruster SocketAddress *socket_local_address(int fd, Error **errp) 133317c55decSDaniel P. Berrange { 133417c55decSDaniel P. Berrange struct sockaddr_storage ss; 133517c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 133617c55decSDaniel P. Berrange 133717c55decSDaniel P. Berrange if (getsockname(fd, (struct sockaddr *)&ss, &sslen) < 0) { 1338b16a44e1SDaniel P. Berrange error_setg_errno(errp, errno, "%s", 133917c55decSDaniel P. Berrange "Unable to query local socket address"); 134017c55decSDaniel P. Berrange return NULL; 134117c55decSDaniel P. Berrange } 134217c55decSDaniel P. Berrange 134317c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 134417c55decSDaniel P. Berrange } 134517c55decSDaniel P. Berrange 134617c55decSDaniel P. Berrange 1347bd269ebcSMarkus Armbruster SocketAddress *socket_remote_address(int fd, Error **errp) 134817c55decSDaniel P. Berrange { 134917c55decSDaniel P. Berrange struct sockaddr_storage ss; 135017c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 135117c55decSDaniel P. Berrange 135217c55decSDaniel P. Berrange if (getpeername(fd, (struct sockaddr *)&ss, &sslen) < 0) { 1353b16a44e1SDaniel P. Berrange error_setg_errno(errp, errno, "%s", 135417c55decSDaniel P. Berrange "Unable to query remote socket address"); 135517c55decSDaniel P. Berrange return NULL; 135617c55decSDaniel P. Berrange } 135717c55decSDaniel P. Berrange 135817c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 135917c55decSDaniel P. Berrange } 13602a8e21c7SDaniel P. Berrange 1361216411b8SMarkus Armbruster 1362bd269ebcSMarkus Armbruster SocketAddress *socket_address_flatten(SocketAddressLegacy *addr_legacy) 1363bd269ebcSMarkus Armbruster { 1364fc0f0059SMarkus Armbruster SocketAddress *addr; 1365bd269ebcSMarkus Armbruster 1366bd269ebcSMarkus Armbruster if (!addr_legacy) { 1367bd269ebcSMarkus Armbruster return NULL; 1368bd269ebcSMarkus Armbruster } 1369bd269ebcSMarkus Armbruster 1370fc0f0059SMarkus Armbruster addr = g_new(SocketAddress, 1); 1371fc0f0059SMarkus Armbruster 1372bd269ebcSMarkus Armbruster switch (addr_legacy->type) { 1373bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_INET: 1374bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1375bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(InetSocketAddress, &addr->u.inet, 1376bd269ebcSMarkus Armbruster addr_legacy->u.inet.data); 1377bd269ebcSMarkus Armbruster break; 1378bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_UNIX: 1379bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 1380bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(UnixSocketAddress, &addr->u.q_unix, 1381bd269ebcSMarkus Armbruster addr_legacy->u.q_unix.data); 1382bd269ebcSMarkus Armbruster break; 1383bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_VSOCK: 1384bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1385bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(VsockSocketAddress, &addr->u.vsock, 1386bd269ebcSMarkus Armbruster addr_legacy->u.vsock.data); 1387bd269ebcSMarkus Armbruster break; 1388bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_FD: 1389bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_FD; 1390bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(String, &addr->u.fd, addr_legacy->u.fd.data); 1391bd269ebcSMarkus Armbruster break; 1392bd269ebcSMarkus Armbruster default: 1393bd269ebcSMarkus Armbruster abort(); 1394bd269ebcSMarkus Armbruster } 1395bd269ebcSMarkus Armbruster 1396bd269ebcSMarkus Armbruster return addr; 1397bd269ebcSMarkus Armbruster } 1398