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 1071856835dSDaniel P. Berrange * t t PF_INET6 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 1121856835dSDaniel P. Berrange * apply the logic the end user wants. eg with the last case 1131856835dSDaniel P. Berrange * ipv4=t + ipv6=t + PF_INET6, getaddrinfo alone can only 1141856835dSDaniel P. Berrange * guarantee the ipv6=t part of the request - we need more 1151856835dSDaniel P. Berrange * checks to provide ipv4=t part of the guarantee. This is 1161856835dSDaniel P. Berrange * outside scope of this method and not currently handled by 1171856835dSDaniel P. Berrange * callers at all. 1181856835dSDaniel P. Berrange */ 119c1b412f1SDaniel P. Berrange int inet_ai_family_from_address(InetSocketAddress *addr, 1201856835dSDaniel P. Berrange Error **errp) 1211856835dSDaniel P. Berrange { 1221856835dSDaniel P. Berrange if (addr->has_ipv6 && addr->has_ipv4 && 1231856835dSDaniel P. Berrange !addr->ipv6 && !addr->ipv4) { 1241856835dSDaniel P. Berrange error_setg(errp, "Cannot disable IPv4 and IPv6 at same time"); 1251856835dSDaniel P. Berrange return PF_UNSPEC; 1261856835dSDaniel P. Berrange } 1271856835dSDaniel P. Berrange if ((addr->has_ipv6 && addr->ipv6) || (addr->has_ipv4 && !addr->ipv4)) { 1281856835dSDaniel P. Berrange return PF_INET6; 1291856835dSDaniel P. Berrange } 1301856835dSDaniel P. Berrange if ((addr->has_ipv4 && addr->ipv4) || (addr->has_ipv6 && !addr->ipv6)) { 1311856835dSDaniel P. Berrange return PF_INET; 1321856835dSDaniel P. Berrange } 1331856835dSDaniel P. Berrange return PF_UNSPEC; 1341856835dSDaniel P. Berrange } 1351856835dSDaniel P. Berrange 1361856835dSDaniel P. Berrange static int inet_listen_saddr(InetSocketAddress *saddr, 1371856835dSDaniel P. Berrange int port_offset, 1381856835dSDaniel P. Berrange bool update_addr, 1391856835dSDaniel P. Berrange Error **errp) 140baacf047SPaolo Bonzini { 141baacf047SPaolo Bonzini struct addrinfo ai,*res,*e; 142baacf047SPaolo Bonzini char port[33]; 143baacf047SPaolo Bonzini char uaddr[INET6_ADDRSTRLEN+1]; 144baacf047SPaolo Bonzini char uport[33]; 1451856835dSDaniel P. Berrange int slisten, rc, port_min, port_max, p; 1461856835dSDaniel P. Berrange Error *err = NULL; 147baacf047SPaolo Bonzini 148baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 1493de3d698SWolfgang Bumiller ai.ai_flags = AI_PASSIVE; 1506979a813SDaniel P. Berrange if (saddr->has_numeric && saddr->numeric) { 1516979a813SDaniel P. Berrange ai.ai_flags |= AI_NUMERICHOST | AI_NUMERICSERV; 1526979a813SDaniel P. Berrange } 1531856835dSDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(saddr, &err); 154baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 155baacf047SPaolo Bonzini 1561856835dSDaniel P. Berrange if (err) { 1571856835dSDaniel P. Berrange error_propagate(errp, err); 1581856835dSDaniel P. Berrange return -1; 1591856835dSDaniel P. Berrange } 1601856835dSDaniel P. Berrange 1611856835dSDaniel P. Berrange if (saddr->host == NULL) { 1620983f5e6SDaniel P. Berrange error_setg(errp, "host not specified"); 163baacf047SPaolo Bonzini return -1; 164baacf047SPaolo Bonzini } 1651856835dSDaniel P. Berrange if (saddr->port != NULL) { 1661856835dSDaniel P. Berrange pstrcpy(port, sizeof(port), saddr->port); 1670983f5e6SDaniel P. Berrange } else { 1680983f5e6SDaniel P. Berrange port[0] = '\0'; 1690983f5e6SDaniel P. Berrange } 170baacf047SPaolo Bonzini 171baacf047SPaolo Bonzini /* lookup */ 1728bc89127SGerd Hoffmann if (port_offset) { 1738bc89127SGerd Hoffmann unsigned long long baseport; 1740983f5e6SDaniel P. Berrange if (strlen(port) == 0) { 1750983f5e6SDaniel P. Berrange error_setg(errp, "port not specified"); 1760983f5e6SDaniel P. Berrange return -1; 1770983f5e6SDaniel P. Berrange } 1788bc89127SGerd Hoffmann if (parse_uint_full(port, &baseport, 10) < 0) { 1798bc89127SGerd Hoffmann error_setg(errp, "can't convert to a number: %s", port); 1808bc89127SGerd Hoffmann return -1; 1818bc89127SGerd Hoffmann } 1828bc89127SGerd Hoffmann if (baseport > 65535 || 1838bc89127SGerd Hoffmann baseport + port_offset > 65535) { 1848bc89127SGerd Hoffmann error_setg(errp, "port %s out of range", port); 1858bc89127SGerd Hoffmann return -1; 1868bc89127SGerd Hoffmann } 1878bc89127SGerd Hoffmann snprintf(port, sizeof(port), "%d", (int)baseport + port_offset); 1888bc89127SGerd Hoffmann } 1891856835dSDaniel P. Berrange rc = getaddrinfo(strlen(saddr->host) ? saddr->host : NULL, 1900983f5e6SDaniel P. Berrange strlen(port) ? port : NULL, &ai, &res); 191baacf047SPaolo Bonzini if (rc != 0) { 1921856835dSDaniel P. Berrange error_setg(errp, "address resolution failed for %s:%s: %s", 1931856835dSDaniel P. Berrange saddr->host, port, gai_strerror(rc)); 194baacf047SPaolo Bonzini return -1; 195baacf047SPaolo Bonzini } 196baacf047SPaolo Bonzini 197baacf047SPaolo Bonzini /* create socket + bind */ 198baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 199baacf047SPaolo Bonzini getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen, 200baacf047SPaolo Bonzini uaddr,INET6_ADDRSTRLEN,uport,32, 201baacf047SPaolo Bonzini NI_NUMERICHOST | NI_NUMERICSERV); 202baacf047SPaolo Bonzini slisten = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol); 203baacf047SPaolo Bonzini if (slisten < 0) { 204baacf047SPaolo Bonzini if (!e->ai_next) { 205235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 206baacf047SPaolo Bonzini } 207baacf047SPaolo Bonzini continue; 208baacf047SPaolo Bonzini } 209baacf047SPaolo Bonzini 21004fd1c78SSebastian Ottlik socket_set_fast_reuse(slisten); 211baacf047SPaolo Bonzini #ifdef IPV6_V6ONLY 212baacf047SPaolo Bonzini if (e->ai_family == PF_INET6) { 213baacf047SPaolo Bonzini /* listen on both ipv4 and ipv6 */ 214f9b5426fSPeter Maydell const int off = 0; 2159957fc7fSStefan Weil qemu_setsockopt(slisten, IPPROTO_IPV6, IPV6_V6ONLY, &off, 216baacf047SPaolo Bonzini sizeof(off)); 217baacf047SPaolo Bonzini } 218baacf047SPaolo Bonzini #endif 219baacf047SPaolo Bonzini 220baacf047SPaolo Bonzini port_min = inet_getport(e); 2211856835dSDaniel P. Berrange port_max = saddr->has_to ? saddr->to + port_offset : port_min; 222baacf047SPaolo Bonzini for (p = port_min; p <= port_max; p++) { 223baacf047SPaolo Bonzini inet_setport(e, p); 224baacf047SPaolo Bonzini if (bind(slisten, e->ai_addr, e->ai_addrlen) == 0) { 225baacf047SPaolo Bonzini goto listen; 226baacf047SPaolo Bonzini } 227baacf047SPaolo Bonzini if (p == port_max) { 228baacf047SPaolo Bonzini if (!e->ai_next) { 229235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 230baacf047SPaolo Bonzini } 231baacf047SPaolo Bonzini } 232baacf047SPaolo Bonzini } 233baacf047SPaolo Bonzini closesocket(slisten); 234baacf047SPaolo Bonzini } 235baacf047SPaolo Bonzini freeaddrinfo(res); 236baacf047SPaolo Bonzini return -1; 237baacf047SPaolo Bonzini 238baacf047SPaolo Bonzini listen: 239baacf047SPaolo Bonzini if (listen(slisten,1) != 0) { 240235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 241baacf047SPaolo Bonzini closesocket(slisten); 242baacf047SPaolo Bonzini freeaddrinfo(res); 243baacf047SPaolo Bonzini return -1; 244baacf047SPaolo Bonzini } 2451856835dSDaniel P. Berrange if (update_addr) { 2461856835dSDaniel P. Berrange g_free(saddr->host); 2471856835dSDaniel P. Berrange saddr->host = g_strdup(uaddr); 2481856835dSDaniel P. Berrange g_free(saddr->port); 2491856835dSDaniel P. Berrange saddr->port = g_strdup_printf("%d", 2501856835dSDaniel P. Berrange inet_getport(e) - port_offset); 2511856835dSDaniel P. Berrange saddr->has_ipv6 = saddr->ipv6 = e->ai_family == PF_INET6; 2521856835dSDaniel P. Berrange saddr->has_ipv4 = saddr->ipv4 = e->ai_family != PF_INET6; 2531856835dSDaniel P. Berrange } 254baacf047SPaolo Bonzini freeaddrinfo(res); 255baacf047SPaolo Bonzini return slisten; 256baacf047SPaolo Bonzini } 257baacf047SPaolo Bonzini 258baacf047SPaolo Bonzini #ifdef _WIN32 259baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 260baacf047SPaolo Bonzini ((rc) == -EINPROGRESS || (rc) == -EWOULDBLOCK || (rc) == -WSAEALREADY) 261baacf047SPaolo Bonzini #else 262baacf047SPaolo Bonzini #define QEMU_SOCKET_RC_INPROGRESS(rc) \ 263baacf047SPaolo Bonzini ((rc) == -EINPROGRESS) 264baacf047SPaolo Bonzini #endif 265baacf047SPaolo Bonzini 266baacf047SPaolo Bonzini /* Struct to store connect state for non blocking connect */ 267baacf047SPaolo Bonzini typedef struct ConnectState { 268baacf047SPaolo Bonzini int fd; 269baacf047SPaolo Bonzini struct addrinfo *addr_list; 270baacf047SPaolo Bonzini struct addrinfo *current_addr; 271baacf047SPaolo Bonzini NonBlockingConnectHandler *callback; 272baacf047SPaolo Bonzini void *opaque; 273baacf047SPaolo Bonzini } ConnectState; 274baacf047SPaolo Bonzini 275baacf047SPaolo Bonzini static int inet_connect_addr(struct addrinfo *addr, bool *in_progress, 276baacf047SPaolo Bonzini ConnectState *connect_state, Error **errp); 277baacf047SPaolo Bonzini 278baacf047SPaolo Bonzini static void wait_for_connect(void *opaque) 279baacf047SPaolo Bonzini { 280baacf047SPaolo Bonzini ConnectState *s = opaque; 281baacf047SPaolo Bonzini int val = 0, rc = 0; 282baacf047SPaolo Bonzini socklen_t valsize = sizeof(val); 283baacf047SPaolo Bonzini bool in_progress; 28451795029SCorey Minyard Error *err = NULL; 285baacf047SPaolo Bonzini 28682e1cc4bSFam Zheng qemu_set_fd_handler(s->fd, NULL, NULL, NULL); 287baacf047SPaolo Bonzini 288baacf047SPaolo Bonzini do { 2899957fc7fSStefan Weil rc = qemu_getsockopt(s->fd, SOL_SOCKET, SO_ERROR, &val, &valsize); 290b16a44e1SDaniel P. Berrange } while (rc == -1 && errno == EINTR); 291baacf047SPaolo Bonzini 292baacf047SPaolo Bonzini /* update rc to contain error */ 293baacf047SPaolo Bonzini if (!rc && val) { 294baacf047SPaolo Bonzini rc = -1; 29551795029SCorey Minyard errno = val; 296baacf047SPaolo Bonzini } 297baacf047SPaolo Bonzini 298baacf047SPaolo Bonzini /* connect error */ 299baacf047SPaolo Bonzini if (rc < 0) { 30051795029SCorey Minyard error_setg_errno(&err, errno, "Error connecting to socket"); 301baacf047SPaolo Bonzini closesocket(s->fd); 302baacf047SPaolo Bonzini s->fd = rc; 303baacf047SPaolo Bonzini } 304baacf047SPaolo Bonzini 305baacf047SPaolo Bonzini /* try to connect to the next address on the list */ 306baacf047SPaolo Bonzini if (s->current_addr) { 307baacf047SPaolo Bonzini while (s->current_addr->ai_next != NULL && s->fd < 0) { 308baacf047SPaolo Bonzini s->current_addr = s->current_addr->ai_next; 309baacf047SPaolo Bonzini s->fd = inet_connect_addr(s->current_addr, &in_progress, s, NULL); 31051795029SCorey Minyard if (s->fd < 0) { 31151795029SCorey Minyard error_free(err); 31251795029SCorey Minyard err = NULL; 31351795029SCorey Minyard error_setg_errno(&err, errno, "Unable to start socket connect"); 31451795029SCorey Minyard } 315baacf047SPaolo Bonzini /* connect in progress */ 316baacf047SPaolo Bonzini if (in_progress) { 31751795029SCorey Minyard goto out; 318baacf047SPaolo Bonzini } 319baacf047SPaolo Bonzini } 320baacf047SPaolo Bonzini 321baacf047SPaolo Bonzini freeaddrinfo(s->addr_list); 322baacf047SPaolo Bonzini } 323baacf047SPaolo Bonzini 324baacf047SPaolo Bonzini if (s->callback) { 32551795029SCorey Minyard s->callback(s->fd, err, s->opaque); 326baacf047SPaolo Bonzini } 327baacf047SPaolo Bonzini g_free(s); 32851795029SCorey Minyard out: 32951795029SCorey Minyard error_free(err); 330baacf047SPaolo Bonzini } 331baacf047SPaolo Bonzini 332baacf047SPaolo Bonzini static int inet_connect_addr(struct addrinfo *addr, bool *in_progress, 333baacf047SPaolo Bonzini ConnectState *connect_state, Error **errp) 334baacf047SPaolo Bonzini { 335baacf047SPaolo Bonzini int sock, rc; 336baacf047SPaolo Bonzini 337baacf047SPaolo Bonzini *in_progress = false; 338baacf047SPaolo Bonzini 339baacf047SPaolo Bonzini sock = qemu_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol); 340baacf047SPaolo Bonzini if (sock < 0) { 341235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 342baacf047SPaolo Bonzini return -1; 343baacf047SPaolo Bonzini } 34404fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 345baacf047SPaolo Bonzini if (connect_state != NULL) { 346f9e8caccSStefan Hajnoczi qemu_set_nonblock(sock); 347baacf047SPaolo Bonzini } 348baacf047SPaolo Bonzini /* connect to peer */ 349baacf047SPaolo Bonzini do { 350baacf047SPaolo Bonzini rc = 0; 351baacf047SPaolo Bonzini if (connect(sock, addr->ai_addr, addr->ai_addrlen) < 0) { 352b16a44e1SDaniel P. Berrange rc = -errno; 353baacf047SPaolo Bonzini } 354baacf047SPaolo Bonzini } while (rc == -EINTR); 355baacf047SPaolo Bonzini 356baacf047SPaolo Bonzini if (connect_state != NULL && QEMU_SOCKET_RC_INPROGRESS(rc)) { 357baacf047SPaolo Bonzini connect_state->fd = sock; 35882e1cc4bSFam Zheng qemu_set_fd_handler(sock, NULL, wait_for_connect, connect_state); 359baacf047SPaolo Bonzini *in_progress = true; 360baacf047SPaolo Bonzini } else if (rc < 0) { 361235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 362baacf047SPaolo Bonzini closesocket(sock); 363baacf047SPaolo Bonzini return -1; 364baacf047SPaolo Bonzini } 365baacf047SPaolo Bonzini return sock; 366baacf047SPaolo Bonzini } 367baacf047SPaolo Bonzini 3682942e420SDaniel P. Berrange static struct addrinfo *inet_parse_connect_saddr(InetSocketAddress *saddr, 3692942e420SDaniel P. Berrange Error **errp) 370baacf047SPaolo Bonzini { 371baacf047SPaolo Bonzini struct addrinfo ai, *res; 372baacf047SPaolo Bonzini int rc; 3732942e420SDaniel P. Berrange Error *err = NULL; 374340849a9SDaniel P. Berrange static int useV4Mapped = 1; 375baacf047SPaolo Bonzini 376baacf047SPaolo Bonzini memset(&ai, 0, sizeof(ai)); 377baacf047SPaolo Bonzini 378340849a9SDaniel P. Berrange ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG; 379340849a9SDaniel P. Berrange if (atomic_read(&useV4Mapped)) { 380340849a9SDaniel P. Berrange ai.ai_flags |= AI_V4MAPPED; 381340849a9SDaniel P. Berrange } 3822942e420SDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(saddr, &err); 383baacf047SPaolo Bonzini ai.ai_socktype = SOCK_STREAM; 384baacf047SPaolo Bonzini 3852942e420SDaniel P. Berrange if (err) { 3862942e420SDaniel P. Berrange error_propagate(errp, err); 3872942e420SDaniel P. Berrange return NULL; 3882942e420SDaniel P. Berrange } 3892942e420SDaniel P. Berrange 3902942e420SDaniel P. Berrange if (saddr->host == NULL || saddr->port == NULL) { 391baacf047SPaolo Bonzini error_setg(errp, "host and/or port not specified"); 392baacf047SPaolo Bonzini return NULL; 393baacf047SPaolo Bonzini } 394baacf047SPaolo Bonzini 395baacf047SPaolo Bonzini /* lookup */ 3962942e420SDaniel P. Berrange rc = getaddrinfo(saddr->host, saddr->port, &ai, &res); 397340849a9SDaniel P. Berrange 398340849a9SDaniel P. Berrange /* At least FreeBSD and OS-X 10.6 declare AI_V4MAPPED but 399340849a9SDaniel P. Berrange * then don't implement it in their getaddrinfo(). Detect 400340849a9SDaniel P. Berrange * this and retry without the flag since that's preferrable 401340849a9SDaniel P. Berrange * to a fatal error 402340849a9SDaniel P. Berrange */ 403340849a9SDaniel P. Berrange if (rc == EAI_BADFLAGS && 404340849a9SDaniel P. Berrange (ai.ai_flags & AI_V4MAPPED)) { 405340849a9SDaniel P. Berrange atomic_set(&useV4Mapped, 0); 406340849a9SDaniel P. Berrange ai.ai_flags &= ~AI_V4MAPPED; 407340849a9SDaniel P. Berrange rc = getaddrinfo(saddr->host, saddr->port, &ai, &res); 408340849a9SDaniel P. Berrange } 409baacf047SPaolo Bonzini if (rc != 0) { 4102942e420SDaniel P. Berrange error_setg(errp, "address resolution failed for %s:%s: %s", 4112942e420SDaniel P. Berrange saddr->host, saddr->port, gai_strerror(rc)); 412baacf047SPaolo Bonzini return NULL; 413baacf047SPaolo Bonzini } 414baacf047SPaolo Bonzini return res; 415baacf047SPaolo Bonzini } 416baacf047SPaolo Bonzini 417baacf047SPaolo Bonzini /** 418baacf047SPaolo Bonzini * Create a socket and connect it to an address. 419baacf047SPaolo Bonzini * 4202942e420SDaniel P. Berrange * @saddr: Inet socket address specification 421baacf047SPaolo Bonzini * @errp: set on error 422baacf047SPaolo Bonzini * @callback: callback function for non-blocking connect 423baacf047SPaolo Bonzini * @opaque: opaque for callback function 424baacf047SPaolo Bonzini * 425baacf047SPaolo Bonzini * Returns: -1 on error, file descriptor on success. 426baacf047SPaolo Bonzini * 427baacf047SPaolo Bonzini * If @callback is non-null, the connect is non-blocking. If this 428baacf047SPaolo Bonzini * function succeeds, callback will be called when the connection 429baacf047SPaolo Bonzini * completes, with the file descriptor on success, or -1 on error. 430baacf047SPaolo Bonzini */ 4316dffc1f6SFam Zheng int inet_connect_saddr(InetSocketAddress *saddr, 4326dffc1f6SFam Zheng NonBlockingConnectHandler *callback, void *opaque, 4336dffc1f6SFam Zheng Error **errp) 434baacf047SPaolo Bonzini { 4353f9286b7SMarkus Armbruster Error *local_err = NULL; 436baacf047SPaolo Bonzini struct addrinfo *res, *e; 437baacf047SPaolo Bonzini int sock = -1; 438baacf047SPaolo Bonzini bool in_progress; 439baacf047SPaolo Bonzini ConnectState *connect_state = NULL; 440baacf047SPaolo Bonzini 4412942e420SDaniel P. Berrange res = inet_parse_connect_saddr(saddr, errp); 442baacf047SPaolo Bonzini if (!res) { 443baacf047SPaolo Bonzini return -1; 444baacf047SPaolo Bonzini } 445baacf047SPaolo Bonzini 446baacf047SPaolo Bonzini if (callback != NULL) { 447baacf047SPaolo Bonzini connect_state = g_malloc0(sizeof(*connect_state)); 448baacf047SPaolo Bonzini connect_state->addr_list = res; 449baacf047SPaolo Bonzini connect_state->callback = callback; 450baacf047SPaolo Bonzini connect_state->opaque = opaque; 451baacf047SPaolo Bonzini } 452baacf047SPaolo Bonzini 453baacf047SPaolo Bonzini for (e = res; e != NULL; e = e->ai_next) { 4543f9286b7SMarkus Armbruster error_free(local_err); 4553f9286b7SMarkus Armbruster local_err = NULL; 456baacf047SPaolo Bonzini if (connect_state != NULL) { 457baacf047SPaolo Bonzini connect_state->current_addr = e; 458baacf047SPaolo Bonzini } 4593f9286b7SMarkus Armbruster sock = inet_connect_addr(e, &in_progress, connect_state, &local_err); 4603f9286b7SMarkus Armbruster if (sock >= 0) { 461baacf047SPaolo Bonzini break; 462baacf047SPaolo Bonzini } 463baacf047SPaolo Bonzini } 4643f9286b7SMarkus Armbruster 4653f9286b7SMarkus Armbruster if (sock < 0) { 4663f9286b7SMarkus Armbruster error_propagate(errp, local_err); 4673f9286b7SMarkus Armbruster } else if (in_progress) { 4683f9286b7SMarkus Armbruster /* wait_for_connect() will do the rest */ 4693f9286b7SMarkus Armbruster return sock; 4703f9286b7SMarkus Armbruster } else { 4713f9286b7SMarkus Armbruster if (callback) { 47251795029SCorey Minyard callback(sock, NULL, opaque); 4733f9286b7SMarkus Armbruster } 4743f9286b7SMarkus Armbruster } 475baacf047SPaolo Bonzini g_free(connect_state); 476baacf047SPaolo Bonzini freeaddrinfo(res); 477baacf047SPaolo Bonzini return sock; 478baacf047SPaolo Bonzini } 479baacf047SPaolo Bonzini 4808b39910eSDaniel P. Berrange static int inet_dgram_saddr(InetSocketAddress *sraddr, 4818b39910eSDaniel P. Berrange InetSocketAddress *sladdr, 4828b39910eSDaniel P. Berrange Error **errp) 483baacf047SPaolo Bonzini { 484baacf047SPaolo Bonzini struct addrinfo ai, *peer = NULL, *local = NULL; 485baacf047SPaolo Bonzini const char *addr; 486baacf047SPaolo Bonzini const char *port; 487baacf047SPaolo Bonzini int sock = -1, rc; 4888b39910eSDaniel P. Berrange Error *err = NULL; 489baacf047SPaolo Bonzini 490baacf047SPaolo Bonzini /* lookup peer addr */ 491baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 4923de3d698SWolfgang Bumiller ai.ai_flags = AI_CANONNAME | AI_V4MAPPED | AI_ADDRCONFIG; 4938b39910eSDaniel P. Berrange ai.ai_family = inet_ai_family_from_address(sraddr, &err); 494baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 495baacf047SPaolo Bonzini 4968b39910eSDaniel P. Berrange if (err) { 4978b39910eSDaniel P. Berrange error_propagate(errp, err); 49858c652c0SPaolo Bonzini goto err; 4998b39910eSDaniel P. Berrange } 5008b39910eSDaniel P. Berrange 5018b39910eSDaniel P. Berrange addr = sraddr->host; 5028b39910eSDaniel P. Berrange port = sraddr->port; 503baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 504baacf047SPaolo Bonzini addr = "localhost"; 505baacf047SPaolo Bonzini } 506baacf047SPaolo Bonzini if (port == NULL || strlen(port) == 0) { 507baacf047SPaolo Bonzini error_setg(errp, "remote port not specified"); 50858c652c0SPaolo Bonzini goto err; 509baacf047SPaolo Bonzini } 510baacf047SPaolo Bonzini 5119cd1883cSCao jin if ((rc = getaddrinfo(addr, port, &ai, &peer)) != 0) { 512baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 513baacf047SPaolo Bonzini gai_strerror(rc)); 51458c652c0SPaolo Bonzini goto err; 515baacf047SPaolo Bonzini } 516baacf047SPaolo Bonzini 517baacf047SPaolo Bonzini /* lookup local addr */ 518baacf047SPaolo Bonzini memset(&ai,0, sizeof(ai)); 519baacf047SPaolo Bonzini ai.ai_flags = AI_PASSIVE; 520baacf047SPaolo Bonzini ai.ai_family = peer->ai_family; 521baacf047SPaolo Bonzini ai.ai_socktype = SOCK_DGRAM; 522baacf047SPaolo Bonzini 5238b39910eSDaniel P. Berrange if (sladdr) { 5248b39910eSDaniel P. Berrange addr = sladdr->host; 5258b39910eSDaniel P. Berrange port = sladdr->port; 526baacf047SPaolo Bonzini if (addr == NULL || strlen(addr) == 0) { 527baacf047SPaolo Bonzini addr = NULL; 528baacf047SPaolo Bonzini } 5298b39910eSDaniel P. Berrange if (!port || strlen(port) == 0) { 530baacf047SPaolo Bonzini port = "0"; 5318b39910eSDaniel P. Berrange } 5328b39910eSDaniel P. Berrange } else { 5338b39910eSDaniel P. Berrange addr = NULL; 5348b39910eSDaniel P. Berrange port = "0"; 5358b39910eSDaniel P. Berrange } 536baacf047SPaolo Bonzini 5379cd1883cSCao jin if ((rc = getaddrinfo(addr, port, &ai, &local)) != 0) { 538baacf047SPaolo Bonzini error_setg(errp, "address resolution failed for %s:%s: %s", addr, port, 539baacf047SPaolo Bonzini gai_strerror(rc)); 540baacf047SPaolo Bonzini goto err; 541baacf047SPaolo Bonzini } 542baacf047SPaolo Bonzini 543baacf047SPaolo Bonzini /* create socket */ 544baacf047SPaolo Bonzini sock = qemu_socket(peer->ai_family, peer->ai_socktype, peer->ai_protocol); 545baacf047SPaolo Bonzini if (sock < 0) { 546235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 547baacf047SPaolo Bonzini goto err; 548baacf047SPaolo Bonzini } 54904fd1c78SSebastian Ottlik socket_set_fast_reuse(sock); 550baacf047SPaolo Bonzini 551baacf047SPaolo Bonzini /* bind socket */ 552baacf047SPaolo Bonzini if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) { 553235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to bind socket"); 554baacf047SPaolo Bonzini goto err; 555baacf047SPaolo Bonzini } 556baacf047SPaolo Bonzini 557baacf047SPaolo Bonzini /* connect to peer */ 558baacf047SPaolo Bonzini if (connect(sock,peer->ai_addr,peer->ai_addrlen) < 0) { 559235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to connect socket"); 560baacf047SPaolo Bonzini goto err; 561baacf047SPaolo Bonzini } 562baacf047SPaolo Bonzini 563baacf047SPaolo Bonzini freeaddrinfo(local); 564baacf047SPaolo Bonzini freeaddrinfo(peer); 565baacf047SPaolo Bonzini return sock; 566baacf047SPaolo Bonzini 567baacf047SPaolo Bonzini err: 56826015051SCao jin if (sock != -1) { 569baacf047SPaolo Bonzini closesocket(sock); 57026015051SCao jin } 57126015051SCao jin if (local) { 572baacf047SPaolo Bonzini freeaddrinfo(local); 57326015051SCao jin } 57426015051SCao jin if (peer) { 575baacf047SPaolo Bonzini freeaddrinfo(peer); 57626015051SCao jin } 57726015051SCao jin 578baacf047SPaolo Bonzini return -1; 579baacf047SPaolo Bonzini } 580baacf047SPaolo Bonzini 581baacf047SPaolo Bonzini /* compatibility wrapper */ 5820785bd7aSMarkus Armbruster int inet_parse(InetSocketAddress *addr, const char *str, Error **errp) 583baacf047SPaolo Bonzini { 584baacf047SPaolo Bonzini const char *optstr, *h; 58555a10996SKevin Wolf char host[65]; 586baacf047SPaolo Bonzini char port[33]; 587baacf047SPaolo Bonzini int to; 588baacf047SPaolo Bonzini int pos; 589baacf047SPaolo Bonzini 5900785bd7aSMarkus Armbruster memset(addr, 0, sizeof(*addr)); 591baacf047SPaolo Bonzini 592baacf047SPaolo Bonzini /* parse address */ 593baacf047SPaolo Bonzini if (str[0] == ':') { 594baacf047SPaolo Bonzini /* no host given */ 595baacf047SPaolo Bonzini host[0] = '\0'; 5969cd1883cSCao jin if (sscanf(str, ":%32[^,]%n", port, &pos) != 1) { 597baacf047SPaolo Bonzini error_setg(errp, "error parsing port in address '%s'", str); 5980785bd7aSMarkus Armbruster return -1; 599baacf047SPaolo Bonzini } 600baacf047SPaolo Bonzini } else if (str[0] == '[') { 601baacf047SPaolo Bonzini /* IPv6 addr */ 6029cd1883cSCao jin if (sscanf(str, "[%64[^]]]:%32[^,]%n", host, port, &pos) != 2) { 603baacf047SPaolo Bonzini error_setg(errp, "error parsing IPv6 address '%s'", str); 6040785bd7aSMarkus Armbruster return -1; 605baacf047SPaolo Bonzini } 606baacf047SPaolo Bonzini addr->ipv6 = addr->has_ipv6 = true; 607baacf047SPaolo Bonzini } else { 608391b7b97SJán Tomko /* hostname or IPv4 addr */ 6099cd1883cSCao jin if (sscanf(str, "%64[^:]:%32[^,]%n", host, port, &pos) != 2) { 610baacf047SPaolo Bonzini error_setg(errp, "error parsing address '%s'", str); 6110785bd7aSMarkus Armbruster return -1; 612baacf047SPaolo Bonzini } 613391b7b97SJán Tomko if (host[strspn(host, "0123456789.")] == '\0') { 614391b7b97SJán Tomko addr->ipv4 = addr->has_ipv4 = true; 615391b7b97SJán Tomko } 616baacf047SPaolo Bonzini } 617baacf047SPaolo Bonzini 618baacf047SPaolo Bonzini addr->host = g_strdup(host); 619baacf047SPaolo Bonzini addr->port = g_strdup(port); 620baacf047SPaolo Bonzini 621baacf047SPaolo Bonzini /* parse options */ 622baacf047SPaolo Bonzini optstr = str + pos; 623baacf047SPaolo Bonzini h = strstr(optstr, ",to="); 624baacf047SPaolo Bonzini if (h) { 625baacf047SPaolo Bonzini h += 4; 626baacf047SPaolo Bonzini if (sscanf(h, "%d%n", &to, &pos) != 1 || 627baacf047SPaolo Bonzini (h[pos] != '\0' && h[pos] != ',')) { 628baacf047SPaolo Bonzini error_setg(errp, "error parsing to= argument"); 6290785bd7aSMarkus Armbruster return -1; 630baacf047SPaolo Bonzini } 631baacf047SPaolo Bonzini addr->has_to = true; 632baacf047SPaolo Bonzini addr->to = to; 633baacf047SPaolo Bonzini } 634baacf047SPaolo Bonzini if (strstr(optstr, ",ipv4")) { 635baacf047SPaolo Bonzini addr->ipv4 = addr->has_ipv4 = true; 636baacf047SPaolo Bonzini } 637baacf047SPaolo Bonzini if (strstr(optstr, ",ipv6")) { 638baacf047SPaolo Bonzini addr->ipv6 = addr->has_ipv6 = true; 639baacf047SPaolo Bonzini } 6400785bd7aSMarkus Armbruster return 0; 641baacf047SPaolo Bonzini } 642baacf047SPaolo Bonzini 643baacf047SPaolo Bonzini 644baacf047SPaolo Bonzini /** 645baacf047SPaolo Bonzini * Create a blocking socket and connect it to an address. 646baacf047SPaolo Bonzini * 647baacf047SPaolo Bonzini * @str: address string 648baacf047SPaolo Bonzini * @errp: set in case of an error 649baacf047SPaolo Bonzini * 650baacf047SPaolo Bonzini * Returns -1 in case of error, file descriptor on success 651baacf047SPaolo Bonzini **/ 652baacf047SPaolo Bonzini int inet_connect(const char *str, Error **errp) 653baacf047SPaolo Bonzini { 654baacf047SPaolo Bonzini int sock = -1; 6550785bd7aSMarkus Armbruster InetSocketAddress *addr = g_new(InetSocketAddress, 1); 656baacf047SPaolo Bonzini 6570785bd7aSMarkus Armbruster if (!inet_parse(addr, str, errp)) { 6586dffc1f6SFam Zheng sock = inet_connect_saddr(addr, NULL, NULL, errp); 659baacf047SPaolo Bonzini } 6600785bd7aSMarkus Armbruster qapi_free_InetSocketAddress(addr); 661baacf047SPaolo Bonzini return sock; 662baacf047SPaolo Bonzini } 663baacf047SPaolo Bonzini 6646a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 6656a02c806SStefan Hajnoczi static bool vsock_parse_vaddr_to_sockaddr(const VsockSocketAddress *vaddr, 6666a02c806SStefan Hajnoczi struct sockaddr_vm *svm, 6676a02c806SStefan Hajnoczi Error **errp) 6686a02c806SStefan Hajnoczi { 6696a02c806SStefan Hajnoczi unsigned long long val; 6706a02c806SStefan Hajnoczi 6716a02c806SStefan Hajnoczi memset(svm, 0, sizeof(*svm)); 6726a02c806SStefan Hajnoczi svm->svm_family = AF_VSOCK; 6736a02c806SStefan Hajnoczi 6746a02c806SStefan Hajnoczi if (parse_uint_full(vaddr->cid, &val, 10) < 0 || 6756a02c806SStefan Hajnoczi val > UINT32_MAX) { 6766a02c806SStefan Hajnoczi error_setg(errp, "Failed to parse cid '%s'", vaddr->cid); 6776a02c806SStefan Hajnoczi return false; 6786a02c806SStefan Hajnoczi } 6796a02c806SStefan Hajnoczi svm->svm_cid = val; 6806a02c806SStefan Hajnoczi 6816a02c806SStefan Hajnoczi if (parse_uint_full(vaddr->port, &val, 10) < 0 || 6826a02c806SStefan Hajnoczi val > UINT32_MAX) { 6836a02c806SStefan Hajnoczi error_setg(errp, "Failed to parse port '%s'", vaddr->port); 6846a02c806SStefan Hajnoczi return false; 6856a02c806SStefan Hajnoczi } 6866a02c806SStefan Hajnoczi svm->svm_port = val; 6876a02c806SStefan Hajnoczi 6886a02c806SStefan Hajnoczi return true; 6896a02c806SStefan Hajnoczi } 6906a02c806SStefan Hajnoczi 6916a02c806SStefan Hajnoczi static int vsock_connect_addr(const struct sockaddr_vm *svm, bool *in_progress, 6926a02c806SStefan Hajnoczi ConnectState *connect_state, Error **errp) 6936a02c806SStefan Hajnoczi { 6946a02c806SStefan Hajnoczi int sock, rc; 6956a02c806SStefan Hajnoczi 6966a02c806SStefan Hajnoczi *in_progress = false; 6976a02c806SStefan Hajnoczi 6986a02c806SStefan Hajnoczi sock = qemu_socket(AF_VSOCK, SOCK_STREAM, 0); 6996a02c806SStefan Hajnoczi if (sock < 0) { 7006a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to create socket"); 7016a02c806SStefan Hajnoczi return -1; 7026a02c806SStefan Hajnoczi } 7036a02c806SStefan Hajnoczi if (connect_state != NULL) { 7046a02c806SStefan Hajnoczi qemu_set_nonblock(sock); 7056a02c806SStefan Hajnoczi } 7066a02c806SStefan Hajnoczi /* connect to peer */ 7076a02c806SStefan Hajnoczi do { 7086a02c806SStefan Hajnoczi rc = 0; 7096a02c806SStefan Hajnoczi if (connect(sock, (const struct sockaddr *)svm, sizeof(*svm)) < 0) { 7106a02c806SStefan Hajnoczi rc = -errno; 7116a02c806SStefan Hajnoczi } 7126a02c806SStefan Hajnoczi } while (rc == -EINTR); 7136a02c806SStefan Hajnoczi 7146a02c806SStefan Hajnoczi if (connect_state != NULL && QEMU_SOCKET_RC_INPROGRESS(rc)) { 7156a02c806SStefan Hajnoczi connect_state->fd = sock; 7166a02c806SStefan Hajnoczi qemu_set_fd_handler(sock, NULL, wait_for_connect, connect_state); 7176a02c806SStefan Hajnoczi *in_progress = true; 7186a02c806SStefan Hajnoczi } else if (rc < 0) { 7196a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to connect socket"); 7206a02c806SStefan Hajnoczi closesocket(sock); 7216a02c806SStefan Hajnoczi return -1; 7226a02c806SStefan Hajnoczi } 7236a02c806SStefan Hajnoczi return sock; 7246a02c806SStefan Hajnoczi } 7256a02c806SStefan Hajnoczi 7261a9a7f25SFam Zheng static int vsock_connect_saddr(VsockSocketAddress *vaddr, 7276a02c806SStefan Hajnoczi NonBlockingConnectHandler *callback, 7281a9a7f25SFam Zheng void *opaque, 7291a9a7f25SFam Zheng Error **errp) 7306a02c806SStefan Hajnoczi { 7316a02c806SStefan Hajnoczi struct sockaddr_vm svm; 7326a02c806SStefan Hajnoczi int sock = -1; 7336a02c806SStefan Hajnoczi bool in_progress; 7346a02c806SStefan Hajnoczi ConnectState *connect_state = NULL; 7356a02c806SStefan Hajnoczi 7366a02c806SStefan Hajnoczi if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) { 7376a02c806SStefan Hajnoczi return -1; 7386a02c806SStefan Hajnoczi } 7396a02c806SStefan Hajnoczi 7406a02c806SStefan Hajnoczi if (callback != NULL) { 7416a02c806SStefan Hajnoczi connect_state = g_malloc0(sizeof(*connect_state)); 7426a02c806SStefan Hajnoczi connect_state->callback = callback; 7436a02c806SStefan Hajnoczi connect_state->opaque = opaque; 7446a02c806SStefan Hajnoczi } 7456a02c806SStefan Hajnoczi 7466a02c806SStefan Hajnoczi sock = vsock_connect_addr(&svm, &in_progress, connect_state, errp); 7476a02c806SStefan Hajnoczi if (sock < 0) { 7486a02c806SStefan Hajnoczi /* do nothing */ 7496a02c806SStefan Hajnoczi } else if (in_progress) { 7506a02c806SStefan Hajnoczi /* wait_for_connect() will do the rest */ 7516a02c806SStefan Hajnoczi return sock; 7526a02c806SStefan Hajnoczi } else { 7536a02c806SStefan Hajnoczi if (callback) { 7546a02c806SStefan Hajnoczi callback(sock, NULL, opaque); 7556a02c806SStefan Hajnoczi } 7566a02c806SStefan Hajnoczi } 7576a02c806SStefan Hajnoczi g_free(connect_state); 7586a02c806SStefan Hajnoczi return sock; 7596a02c806SStefan Hajnoczi } 7606a02c806SStefan Hajnoczi 7616a02c806SStefan Hajnoczi static int vsock_listen_saddr(VsockSocketAddress *vaddr, 7626a02c806SStefan Hajnoczi Error **errp) 7636a02c806SStefan Hajnoczi { 7646a02c806SStefan Hajnoczi struct sockaddr_vm svm; 7656a02c806SStefan Hajnoczi int slisten; 7666a02c806SStefan Hajnoczi 7676a02c806SStefan Hajnoczi if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) { 7686a02c806SStefan Hajnoczi return -1; 7696a02c806SStefan Hajnoczi } 7706a02c806SStefan Hajnoczi 7716a02c806SStefan Hajnoczi slisten = qemu_socket(AF_VSOCK, SOCK_STREAM, 0); 7726a02c806SStefan Hajnoczi if (slisten < 0) { 7736a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to create socket"); 7746a02c806SStefan Hajnoczi return -1; 7756a02c806SStefan Hajnoczi } 7766a02c806SStefan Hajnoczi 7776a02c806SStefan Hajnoczi if (bind(slisten, (const struct sockaddr *)&svm, sizeof(svm)) != 0) { 7786a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to bind socket"); 7796a02c806SStefan Hajnoczi closesocket(slisten); 7806a02c806SStefan Hajnoczi return -1; 7816a02c806SStefan Hajnoczi } 7826a02c806SStefan Hajnoczi 7836a02c806SStefan Hajnoczi if (listen(slisten, 1) != 0) { 7846a02c806SStefan Hajnoczi error_setg_errno(errp, errno, "Failed to listen on socket"); 7856a02c806SStefan Hajnoczi closesocket(slisten); 7866a02c806SStefan Hajnoczi return -1; 7876a02c806SStefan Hajnoczi } 7886a02c806SStefan Hajnoczi return slisten; 7896a02c806SStefan Hajnoczi } 7906a02c806SStefan Hajnoczi 7914db5c619SMarkus Armbruster static int vsock_parse(VsockSocketAddress *addr, const char *str, 7924db5c619SMarkus Armbruster Error **errp) 7936a02c806SStefan Hajnoczi { 7946a02c806SStefan Hajnoczi char cid[33]; 7956a02c806SStefan Hajnoczi char port[33]; 7966a02c806SStefan Hajnoczi int n; 7976a02c806SStefan Hajnoczi 7986a02c806SStefan Hajnoczi if (sscanf(str, "%32[^:]:%32[^,]%n", cid, port, &n) != 2) { 7996a02c806SStefan Hajnoczi error_setg(errp, "error parsing address '%s'", str); 8004db5c619SMarkus Armbruster return -1; 8016a02c806SStefan Hajnoczi } 8026a02c806SStefan Hajnoczi if (str[n] != '\0') { 8036a02c806SStefan Hajnoczi error_setg(errp, "trailing characters in address '%s'", str); 8044db5c619SMarkus Armbruster return -1; 8056a02c806SStefan Hajnoczi } 8066a02c806SStefan Hajnoczi 8076a02c806SStefan Hajnoczi addr->cid = g_strdup(cid); 8086a02c806SStefan Hajnoczi addr->port = g_strdup(port); 8094db5c619SMarkus Armbruster return 0; 8106a02c806SStefan Hajnoczi } 8116a02c806SStefan Hajnoczi #else 8126a02c806SStefan Hajnoczi static void vsock_unsupported(Error **errp) 8136a02c806SStefan Hajnoczi { 8146a02c806SStefan Hajnoczi error_setg(errp, "socket family AF_VSOCK unsupported"); 8156a02c806SStefan Hajnoczi } 8166a02c806SStefan Hajnoczi 8171a9a7f25SFam Zheng static int vsock_connect_saddr(VsockSocketAddress *vaddr, 8186a02c806SStefan Hajnoczi NonBlockingConnectHandler *callback, 8191a9a7f25SFam Zheng void *opaque, Error **errp) 8206a02c806SStefan Hajnoczi { 8216a02c806SStefan Hajnoczi vsock_unsupported(errp); 8226a02c806SStefan Hajnoczi return -1; 8236a02c806SStefan Hajnoczi } 8246a02c806SStefan Hajnoczi 8256a02c806SStefan Hajnoczi static int vsock_listen_saddr(VsockSocketAddress *vaddr, 8266a02c806SStefan Hajnoczi Error **errp) 8276a02c806SStefan Hajnoczi { 8286a02c806SStefan Hajnoczi vsock_unsupported(errp); 8296a02c806SStefan Hajnoczi return -1; 8306a02c806SStefan Hajnoczi } 8316a02c806SStefan Hajnoczi 8324db5c619SMarkus Armbruster static int vsock_parse(VsockSocketAddress *addr, const char *str, 8334db5c619SMarkus Armbruster Error **errp) 8346a02c806SStefan Hajnoczi { 8356a02c806SStefan Hajnoczi vsock_unsupported(errp); 8364db5c619SMarkus Armbruster return -1; 8376a02c806SStefan Hajnoczi } 8386a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 8396a02c806SStefan Hajnoczi 840baacf047SPaolo Bonzini #ifndef _WIN32 841baacf047SPaolo Bonzini 8421856835dSDaniel P. Berrange static int unix_listen_saddr(UnixSocketAddress *saddr, 8431856835dSDaniel P. Berrange bool update_addr, 8441856835dSDaniel P. Berrange Error **errp) 845baacf047SPaolo Bonzini { 846baacf047SPaolo Bonzini struct sockaddr_un un; 847baacf047SPaolo Bonzini int sock, fd; 848*ad9579aaSDaniel P. Berrange char *pathbuf = NULL; 849*ad9579aaSDaniel P. Berrange const char *path; 850baacf047SPaolo Bonzini 851baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 852baacf047SPaolo Bonzini if (sock < 0) { 853b658c53dSPaolo Bonzini error_setg_errno(errp, errno, "Failed to create Unix socket"); 854baacf047SPaolo Bonzini return -1; 855baacf047SPaolo Bonzini } 856baacf047SPaolo Bonzini 857*ad9579aaSDaniel P. Berrange if (saddr->path && saddr->path[0]) { 858*ad9579aaSDaniel P. Berrange path = saddr->path; 859baacf047SPaolo Bonzini } else { 860b658c53dSPaolo Bonzini const char *tmpdir = getenv("TMPDIR"); 861b658c53dSPaolo Bonzini tmpdir = tmpdir ? tmpdir : "/tmp"; 862*ad9579aaSDaniel P. Berrange path = pathbuf = g_strdup_printf("%s/qemu-socket-XXXXXX", tmpdir); 863*ad9579aaSDaniel P. Berrange } 864*ad9579aaSDaniel P. Berrange 865*ad9579aaSDaniel P. Berrange if (strlen(path) > sizeof(un.sun_path)) { 866*ad9579aaSDaniel P. Berrange error_setg(errp, "UNIX socket path '%s' is too long", path); 867*ad9579aaSDaniel P. Berrange error_append_hint(errp, "Path must be less than %zu bytes\n", 868*ad9579aaSDaniel P. Berrange sizeof(un.sun_path)); 869b658c53dSPaolo Bonzini goto err; 870b658c53dSPaolo Bonzini } 871b658c53dSPaolo Bonzini 872*ad9579aaSDaniel P. Berrange if (pathbuf != NULL) { 873baacf047SPaolo Bonzini /* 874baacf047SPaolo Bonzini * This dummy fd usage silences the mktemp() unsecure warning. 875baacf047SPaolo Bonzini * Using mkstemp() doesn't make things more secure here 876baacf047SPaolo Bonzini * though. bind() complains about existing files, so we have 877baacf047SPaolo Bonzini * to unlink first and thus re-open the race window. The 878baacf047SPaolo Bonzini * worst case possible is bind() failing, i.e. a DoS attack. 879baacf047SPaolo Bonzini */ 880*ad9579aaSDaniel P. Berrange fd = mkstemp(pathbuf); 881b658c53dSPaolo Bonzini if (fd < 0) { 882b658c53dSPaolo Bonzini error_setg_errno(errp, errno, 883*ad9579aaSDaniel P. Berrange "Failed to make a temporary socket %s", pathbuf); 884b658c53dSPaolo Bonzini goto err; 885b658c53dSPaolo Bonzini } 886b658c53dSPaolo Bonzini close(fd); 887baacf047SPaolo Bonzini } 888baacf047SPaolo Bonzini 889*ad9579aaSDaniel P. Berrange if (unlink(path) < 0 && errno != ENOENT) { 8900ef705a2SCole Robinson error_setg_errno(errp, errno, 891*ad9579aaSDaniel P. Berrange "Failed to unlink socket %s", path); 8920ef705a2SCole Robinson goto err; 8930ef705a2SCole Robinson } 894*ad9579aaSDaniel P. Berrange 895*ad9579aaSDaniel P. Berrange memset(&un, 0, sizeof(un)); 896*ad9579aaSDaniel P. Berrange un.sun_family = AF_UNIX; 897*ad9579aaSDaniel P. Berrange strncpy(un.sun_path, path, sizeof(un.sun_path)); 898*ad9579aaSDaniel P. Berrange 899baacf047SPaolo Bonzini if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) { 900b658c53dSPaolo Bonzini error_setg_errno(errp, errno, "Failed to bind socket to %s", un.sun_path); 901baacf047SPaolo Bonzini goto err; 902baacf047SPaolo Bonzini } 903baacf047SPaolo Bonzini if (listen(sock, 1) < 0) { 904235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to listen on socket"); 905baacf047SPaolo Bonzini goto err; 906baacf047SPaolo Bonzini } 907baacf047SPaolo Bonzini 908*ad9579aaSDaniel P. Berrange if (update_addr && pathbuf) { 909*ad9579aaSDaniel P. Berrange g_free(saddr->path); 910*ad9579aaSDaniel P. Berrange saddr->path = pathbuf; 911*ad9579aaSDaniel P. Berrange } else { 912*ad9579aaSDaniel P. Berrange g_free(pathbuf); 913*ad9579aaSDaniel P. Berrange } 914baacf047SPaolo Bonzini return sock; 915baacf047SPaolo Bonzini 916baacf047SPaolo Bonzini err: 917*ad9579aaSDaniel P. Berrange g_free(pathbuf); 918baacf047SPaolo Bonzini closesocket(sock); 919baacf047SPaolo Bonzini return -1; 920baacf047SPaolo Bonzini } 921baacf047SPaolo Bonzini 9222bdc6791SFam Zheng static int unix_connect_saddr(UnixSocketAddress *saddr, 9232bdc6791SFam Zheng NonBlockingConnectHandler *callback, void *opaque, 9242bdc6791SFam Zheng Error **errp) 925baacf047SPaolo Bonzini { 926baacf047SPaolo Bonzini struct sockaddr_un un; 927baacf047SPaolo Bonzini ConnectState *connect_state = NULL; 928baacf047SPaolo Bonzini int sock, rc; 929baacf047SPaolo Bonzini 9302942e420SDaniel P. Berrange if (saddr->path == NULL) { 931312fd5f2SMarkus Armbruster error_setg(errp, "unix connect: no path specified"); 932baacf047SPaolo Bonzini return -1; 933baacf047SPaolo Bonzini } 934baacf047SPaolo Bonzini 935baacf047SPaolo Bonzini sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 936baacf047SPaolo Bonzini if (sock < 0) { 937235256a2SMarkus Armbruster error_setg_errno(errp, errno, "Failed to create socket"); 938baacf047SPaolo Bonzini return -1; 939baacf047SPaolo Bonzini } 940baacf047SPaolo Bonzini if (callback != NULL) { 941baacf047SPaolo Bonzini connect_state = g_malloc0(sizeof(*connect_state)); 942baacf047SPaolo Bonzini connect_state->callback = callback; 943baacf047SPaolo Bonzini connect_state->opaque = opaque; 944f9e8caccSStefan Hajnoczi qemu_set_nonblock(sock); 945baacf047SPaolo Bonzini } 946baacf047SPaolo Bonzini 947*ad9579aaSDaniel P. Berrange if (strlen(saddr->path) > sizeof(un.sun_path)) { 948*ad9579aaSDaniel P. Berrange error_setg(errp, "UNIX socket path '%s' is too long", saddr->path); 949*ad9579aaSDaniel P. Berrange error_append_hint(errp, "Path must be less than %zu bytes\n", 950*ad9579aaSDaniel P. Berrange sizeof(un.sun_path)); 951*ad9579aaSDaniel P. Berrange goto err; 952*ad9579aaSDaniel P. Berrange } 953*ad9579aaSDaniel P. Berrange 954baacf047SPaolo Bonzini memset(&un, 0, sizeof(un)); 955baacf047SPaolo Bonzini un.sun_family = AF_UNIX; 956*ad9579aaSDaniel P. Berrange strncpy(un.sun_path, saddr->path, sizeof(un.sun_path)); 957baacf047SPaolo Bonzini 958baacf047SPaolo Bonzini /* connect to peer */ 959baacf047SPaolo Bonzini do { 960baacf047SPaolo Bonzini rc = 0; 961baacf047SPaolo Bonzini if (connect(sock, (struct sockaddr *) &un, sizeof(un)) < 0) { 962b16a44e1SDaniel P. Berrange rc = -errno; 963baacf047SPaolo Bonzini } 964baacf047SPaolo Bonzini } while (rc == -EINTR); 965baacf047SPaolo Bonzini 966baacf047SPaolo Bonzini if (connect_state != NULL && QEMU_SOCKET_RC_INPROGRESS(rc)) { 967baacf047SPaolo Bonzini connect_state->fd = sock; 96882e1cc4bSFam Zheng qemu_set_fd_handler(sock, NULL, wait_for_connect, connect_state); 969baacf047SPaolo Bonzini return sock; 970baacf047SPaolo Bonzini } else if (rc >= 0) { 971baacf047SPaolo Bonzini /* non blocking socket immediate success, call callback */ 972baacf047SPaolo Bonzini if (callback != NULL) { 97351795029SCorey Minyard callback(sock, NULL, opaque); 974baacf047SPaolo Bonzini } 975baacf047SPaolo Bonzini } 976baacf047SPaolo Bonzini 977baacf047SPaolo Bonzini if (rc < 0) { 978*ad9579aaSDaniel P. Berrange error_setg_errno(errp, -rc, "Failed to connect socket %s", 979*ad9579aaSDaniel P. Berrange saddr->path); 980*ad9579aaSDaniel P. Berrange goto err; 981baacf047SPaolo Bonzini } 982baacf047SPaolo Bonzini 983baacf047SPaolo Bonzini g_free(connect_state); 984baacf047SPaolo Bonzini return sock; 985*ad9579aaSDaniel P. Berrange 986*ad9579aaSDaniel P. Berrange err: 987*ad9579aaSDaniel P. Berrange close(sock); 988*ad9579aaSDaniel P. Berrange g_free(connect_state); 989*ad9579aaSDaniel P. Berrange return -1; 990baacf047SPaolo Bonzini } 991baacf047SPaolo Bonzini 992baacf047SPaolo Bonzini #else 993baacf047SPaolo Bonzini 9941856835dSDaniel P. Berrange static int unix_listen_saddr(UnixSocketAddress *saddr, 9951856835dSDaniel P. Berrange bool update_addr, 9961856835dSDaniel P. Berrange Error **errp) 997baacf047SPaolo Bonzini { 998baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 999baacf047SPaolo Bonzini errno = ENOTSUP; 1000baacf047SPaolo Bonzini return -1; 1001baacf047SPaolo Bonzini } 1002baacf047SPaolo Bonzini 10032bdc6791SFam Zheng static int unix_connect_saddr(UnixSocketAddress *saddr, 10042bdc6791SFam Zheng NonBlockingConnectHandler *callback, void *opaque, 10052bdc6791SFam Zheng Error **errp) 1006baacf047SPaolo Bonzini { 1007baacf047SPaolo Bonzini error_setg(errp, "unix sockets are not available on windows"); 1008baacf047SPaolo Bonzini errno = ENOTSUP; 1009baacf047SPaolo Bonzini return -1; 1010baacf047SPaolo Bonzini } 1011baacf047SPaolo Bonzini #endif 1012baacf047SPaolo Bonzini 1013baacf047SPaolo Bonzini /* compatibility wrapper */ 1014baacf047SPaolo Bonzini int unix_listen(const char *str, char *ostr, int olen, Error **errp) 1015baacf047SPaolo Bonzini { 1016baacf047SPaolo Bonzini char *path, *optstr; 1017baacf047SPaolo Bonzini int sock, len; 10181856835dSDaniel P. Berrange UnixSocketAddress *saddr; 1019baacf047SPaolo Bonzini 10201856835dSDaniel P. Berrange saddr = g_new0(UnixSocketAddress, 1); 1021baacf047SPaolo Bonzini 1022baacf047SPaolo Bonzini optstr = strchr(str, ','); 1023baacf047SPaolo Bonzini if (optstr) { 1024baacf047SPaolo Bonzini len = optstr - str; 1025baacf047SPaolo Bonzini if (len) { 1026baacf047SPaolo Bonzini path = g_malloc(len+1); 1027baacf047SPaolo Bonzini snprintf(path, len+1, "%.*s", len, str); 10281856835dSDaniel P. Berrange saddr->path = path; 1029baacf047SPaolo Bonzini } 1030baacf047SPaolo Bonzini } else { 10311856835dSDaniel P. Berrange saddr->path = g_strdup(str); 1032baacf047SPaolo Bonzini } 1033baacf047SPaolo Bonzini 10341856835dSDaniel P. Berrange sock = unix_listen_saddr(saddr, true, errp); 1035baacf047SPaolo Bonzini 103626015051SCao jin if (sock != -1 && ostr) { 10371856835dSDaniel P. Berrange snprintf(ostr, olen, "%s%s", saddr->path, optstr ? optstr : ""); 103826015051SCao jin } 103926015051SCao jin 10401856835dSDaniel P. Berrange qapi_free_UnixSocketAddress(saddr); 1041baacf047SPaolo Bonzini return sock; 1042baacf047SPaolo Bonzini } 1043baacf047SPaolo Bonzini 1044baacf047SPaolo Bonzini int unix_connect(const char *path, Error **errp) 1045baacf047SPaolo Bonzini { 10462942e420SDaniel P. Berrange UnixSocketAddress *saddr; 1047baacf047SPaolo Bonzini int sock; 1048baacf047SPaolo Bonzini 10492942e420SDaniel P. Berrange saddr = g_new0(UnixSocketAddress, 1); 10502942e420SDaniel P. Berrange saddr->path = g_strdup(path); 10512bdc6791SFam Zheng sock = unix_connect_saddr(saddr, NULL, NULL, errp); 10522942e420SDaniel P. Berrange qapi_free_UnixSocketAddress(saddr); 1053baacf047SPaolo Bonzini return sock; 1054baacf047SPaolo Bonzini } 1055baacf047SPaolo Bonzini 1056baacf047SPaolo Bonzini 1057bd269ebcSMarkus Armbruster SocketAddress *socket_parse(const char *str, Error **errp) 1058baacf047SPaolo Bonzini { 1059bd269ebcSMarkus Armbruster SocketAddress *addr; 1060baacf047SPaolo Bonzini 1061bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1062baacf047SPaolo Bonzini if (strstart(str, "unix:", NULL)) { 1063baacf047SPaolo Bonzini if (str[5] == '\0') { 1064312fd5f2SMarkus Armbruster error_setg(errp, "invalid Unix socket address"); 1065baacf047SPaolo Bonzini goto fail; 1066baacf047SPaolo Bonzini } else { 1067bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 1068bd269ebcSMarkus Armbruster addr->u.q_unix.path = g_strdup(str + 5); 1069baacf047SPaolo Bonzini } 1070baacf047SPaolo Bonzini } else if (strstart(str, "fd:", NULL)) { 1071baacf047SPaolo Bonzini if (str[3] == '\0') { 1072312fd5f2SMarkus Armbruster error_setg(errp, "invalid file descriptor address"); 1073baacf047SPaolo Bonzini goto fail; 1074baacf047SPaolo Bonzini } else { 1075bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_FD; 1076bd269ebcSMarkus Armbruster addr->u.fd.str = g_strdup(str + 3); 1077baacf047SPaolo Bonzini } 10786a02c806SStefan Hajnoczi } else if (strstart(str, "vsock:", NULL)) { 1079bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1080bd269ebcSMarkus Armbruster if (vsock_parse(&addr->u.vsock, str + strlen("vsock:"), errp)) { 10816a02c806SStefan Hajnoczi goto fail; 10826a02c806SStefan Hajnoczi } 1083baacf047SPaolo Bonzini } else { 1084bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1085bd269ebcSMarkus Armbruster if (inet_parse(&addr->u.inet, str, errp)) { 1086baacf047SPaolo Bonzini goto fail; 1087baacf047SPaolo Bonzini } 1088baacf047SPaolo Bonzini } 1089baacf047SPaolo Bonzini return addr; 1090baacf047SPaolo Bonzini 1091baacf047SPaolo Bonzini fail: 1092bd269ebcSMarkus Armbruster qapi_free_SocketAddress(addr); 1093baacf047SPaolo Bonzini return NULL; 1094baacf047SPaolo Bonzini } 1095baacf047SPaolo Bonzini 1096bd269ebcSMarkus Armbruster int socket_connect(SocketAddress *addr, NonBlockingConnectHandler *callback, 1097226799ceSFam Zheng void *opaque, Error **errp) 1098baacf047SPaolo Bonzini { 1099baacf047SPaolo Bonzini int fd; 1100baacf047SPaolo Bonzini 11012d32addaSEric Blake switch (addr->type) { 1102bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1103bd269ebcSMarkus Armbruster fd = inet_connect_saddr(&addr->u.inet, callback, opaque, errp); 1104baacf047SPaolo Bonzini break; 1105baacf047SPaolo Bonzini 1106bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_UNIX: 1107bd269ebcSMarkus Armbruster fd = unix_connect_saddr(&addr->u.q_unix, callback, opaque, errp); 1108baacf047SPaolo Bonzini break; 1109baacf047SPaolo Bonzini 1110bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_FD: 1111bd269ebcSMarkus Armbruster fd = monitor_get_fd(cur_mon, addr->u.fd.str, errp); 1112d1ec72a4SGerd Hoffmann if (fd >= 0 && callback) { 11131a751ebfSStefan Hajnoczi qemu_set_nonblock(fd); 111451795029SCorey Minyard callback(fd, NULL, opaque); 1115baacf047SPaolo Bonzini } 1116baacf047SPaolo Bonzini break; 1117baacf047SPaolo Bonzini 1118bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_VSOCK: 1119bd269ebcSMarkus Armbruster fd = vsock_connect_saddr(&addr->u.vsock, callback, opaque, errp); 11206a02c806SStefan Hajnoczi break; 11216a02c806SStefan Hajnoczi 1122baacf047SPaolo Bonzini default: 1123baacf047SPaolo Bonzini abort(); 1124baacf047SPaolo Bonzini } 1125baacf047SPaolo Bonzini return fd; 1126baacf047SPaolo Bonzini } 1127baacf047SPaolo Bonzini 1128bd269ebcSMarkus Armbruster int socket_listen(SocketAddress *addr, Error **errp) 1129baacf047SPaolo Bonzini { 1130baacf047SPaolo Bonzini int fd; 1131baacf047SPaolo Bonzini 11322d32addaSEric Blake switch (addr->type) { 1133bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1134bd269ebcSMarkus Armbruster fd = inet_listen_saddr(&addr->u.inet, 0, false, errp); 1135baacf047SPaolo Bonzini break; 1136baacf047SPaolo Bonzini 1137bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_UNIX: 1138bd269ebcSMarkus Armbruster fd = unix_listen_saddr(&addr->u.q_unix, false, errp); 1139baacf047SPaolo Bonzini break; 1140baacf047SPaolo Bonzini 1141bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_FD: 1142bd269ebcSMarkus Armbruster fd = monitor_get_fd(cur_mon, addr->u.fd.str, errp); 1143baacf047SPaolo Bonzini break; 1144baacf047SPaolo Bonzini 1145bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_VSOCK: 1146bd269ebcSMarkus Armbruster fd = vsock_listen_saddr(&addr->u.vsock, errp); 11476a02c806SStefan Hajnoczi break; 11486a02c806SStefan Hajnoczi 1149baacf047SPaolo Bonzini default: 1150baacf047SPaolo Bonzini abort(); 1151baacf047SPaolo Bonzini } 1152baacf047SPaolo Bonzini return fd; 1153baacf047SPaolo Bonzini } 1154baacf047SPaolo Bonzini 115574b6ce43SMarc-André Lureau void socket_listen_cleanup(int fd, Error **errp) 115674b6ce43SMarc-André Lureau { 1157bd269ebcSMarkus Armbruster SocketAddress *addr; 115874b6ce43SMarc-André Lureau 115974b6ce43SMarc-André Lureau addr = socket_local_address(fd, errp); 116074b6ce43SMarc-André Lureau 1161bd269ebcSMarkus Armbruster if (addr->type == SOCKET_ADDRESS_TYPE_UNIX 1162bd269ebcSMarkus Armbruster && addr->u.q_unix.path) { 1163bd269ebcSMarkus Armbruster if (unlink(addr->u.q_unix.path) < 0 && errno != ENOENT) { 116474b6ce43SMarc-André Lureau error_setg_errno(errp, errno, 116574b6ce43SMarc-André Lureau "Failed to unlink socket %s", 1166bd269ebcSMarkus Armbruster addr->u.q_unix.path); 116774b6ce43SMarc-André Lureau } 116874b6ce43SMarc-André Lureau } 116974b6ce43SMarc-André Lureau 1170bd269ebcSMarkus Armbruster qapi_free_SocketAddress(addr); 117174b6ce43SMarc-André Lureau } 117274b6ce43SMarc-André Lureau 1173bd269ebcSMarkus Armbruster int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp) 11743ecc059dSGerd Hoffmann { 11753ecc059dSGerd Hoffmann int fd; 11763ecc059dSGerd Hoffmann 1177ca0b64e5SMarkus Armbruster /* 1178bd269ebcSMarkus Armbruster * TODO SOCKET_ADDRESS_TYPE_FD when fd is AF_INET or AF_INET6 1179ca0b64e5SMarkus Armbruster * (although other address families can do SOCK_DGRAM, too) 1180ca0b64e5SMarkus Armbruster */ 11812d32addaSEric Blake switch (remote->type) { 1182bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1183bd269ebcSMarkus Armbruster fd = inet_dgram_saddr(&remote->u.inet, 1184bd269ebcSMarkus Armbruster local ? &local->u.inet : NULL, errp); 11853ecc059dSGerd Hoffmann break; 11863ecc059dSGerd Hoffmann 11873ecc059dSGerd Hoffmann default: 11883ecc059dSGerd Hoffmann error_setg(errp, "socket type unsupported for datagram"); 11897a5b6af1SGerd Hoffmann fd = -1; 11903ecc059dSGerd Hoffmann } 11913ecc059dSGerd Hoffmann return fd; 11923ecc059dSGerd Hoffmann } 119317c55decSDaniel P. Berrange 119417c55decSDaniel P. Berrange 1195bd269ebcSMarkus Armbruster static SocketAddress * 119617c55decSDaniel P. Berrange socket_sockaddr_to_address_inet(struct sockaddr_storage *sa, 119717c55decSDaniel P. Berrange socklen_t salen, 119817c55decSDaniel P. Berrange Error **errp) 119917c55decSDaniel P. Berrange { 120017c55decSDaniel P. Berrange char host[NI_MAXHOST]; 120117c55decSDaniel P. Berrange char serv[NI_MAXSERV]; 1202bd269ebcSMarkus Armbruster SocketAddress *addr; 12030399293eSEric Blake InetSocketAddress *inet; 120417c55decSDaniel P. Berrange int ret; 120517c55decSDaniel P. Berrange 120617c55decSDaniel P. Berrange ret = getnameinfo((struct sockaddr *)sa, salen, 120717c55decSDaniel P. Berrange host, sizeof(host), 120817c55decSDaniel P. Berrange serv, sizeof(serv), 120917c55decSDaniel P. Berrange NI_NUMERICHOST | NI_NUMERICSERV); 121017c55decSDaniel P. Berrange if (ret != 0) { 121117c55decSDaniel P. Berrange error_setg(errp, "Cannot format numeric socket address: %s", 121217c55decSDaniel P. Berrange gai_strerror(ret)); 121317c55decSDaniel P. Berrange return NULL; 121417c55decSDaniel P. Berrange } 121517c55decSDaniel P. Berrange 1216bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1217bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1218bd269ebcSMarkus Armbruster inet = &addr->u.inet; 12190399293eSEric Blake inet->host = g_strdup(host); 12200399293eSEric Blake inet->port = g_strdup(serv); 122117c55decSDaniel P. Berrange if (sa->ss_family == AF_INET) { 12220399293eSEric Blake inet->has_ipv4 = inet->ipv4 = true; 122317c55decSDaniel P. Berrange } else { 12240399293eSEric Blake inet->has_ipv6 = inet->ipv6 = true; 122517c55decSDaniel P. Berrange } 122617c55decSDaniel P. Berrange 122717c55decSDaniel P. Berrange return addr; 122817c55decSDaniel P. Berrange } 122917c55decSDaniel P. Berrange 123017c55decSDaniel P. Berrange 123117c55decSDaniel P. Berrange #ifndef WIN32 1232bd269ebcSMarkus Armbruster static SocketAddress * 123317c55decSDaniel P. Berrange socket_sockaddr_to_address_unix(struct sockaddr_storage *sa, 123417c55decSDaniel P. Berrange socklen_t salen, 123517c55decSDaniel P. Berrange Error **errp) 123617c55decSDaniel P. Berrange { 1237bd269ebcSMarkus Armbruster SocketAddress *addr; 123817c55decSDaniel P. Berrange struct sockaddr_un *su = (struct sockaddr_un *)sa; 123917c55decSDaniel P. Berrange 1240bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1241bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 124217c55decSDaniel P. Berrange if (su->sun_path[0]) { 1243bd269ebcSMarkus Armbruster addr->u.q_unix.path = g_strndup(su->sun_path, sizeof(su->sun_path)); 124417c55decSDaniel P. Berrange } 124517c55decSDaniel P. Berrange 124617c55decSDaniel P. Berrange return addr; 124717c55decSDaniel P. Berrange } 124817c55decSDaniel P. Berrange #endif /* WIN32 */ 124917c55decSDaniel P. Berrange 12506a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 1251bd269ebcSMarkus Armbruster static SocketAddress * 12526a02c806SStefan Hajnoczi socket_sockaddr_to_address_vsock(struct sockaddr_storage *sa, 12536a02c806SStefan Hajnoczi socklen_t salen, 12546a02c806SStefan Hajnoczi Error **errp) 12556a02c806SStefan Hajnoczi { 1256bd269ebcSMarkus Armbruster SocketAddress *addr; 12576a02c806SStefan Hajnoczi VsockSocketAddress *vaddr; 12586a02c806SStefan Hajnoczi struct sockaddr_vm *svm = (struct sockaddr_vm *)sa; 12596a02c806SStefan Hajnoczi 1260bd269ebcSMarkus Armbruster addr = g_new0(SocketAddress, 1); 1261bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1262bd269ebcSMarkus Armbruster vaddr = &addr->u.vsock; 12636a02c806SStefan Hajnoczi vaddr->cid = g_strdup_printf("%u", svm->svm_cid); 12646a02c806SStefan Hajnoczi vaddr->port = g_strdup_printf("%u", svm->svm_port); 12656a02c806SStefan Hajnoczi 12666a02c806SStefan Hajnoczi return addr; 12676a02c806SStefan Hajnoczi } 12686a02c806SStefan Hajnoczi #endif /* CONFIG_AF_VSOCK */ 12696a02c806SStefan Hajnoczi 1270bd269ebcSMarkus Armbruster SocketAddress * 127117c55decSDaniel P. Berrange socket_sockaddr_to_address(struct sockaddr_storage *sa, 127217c55decSDaniel P. Berrange socklen_t salen, 127317c55decSDaniel P. Berrange Error **errp) 127417c55decSDaniel P. Berrange { 127517c55decSDaniel P. Berrange switch (sa->ss_family) { 127617c55decSDaniel P. Berrange case AF_INET: 127717c55decSDaniel P. Berrange case AF_INET6: 127817c55decSDaniel P. Berrange return socket_sockaddr_to_address_inet(sa, salen, errp); 127917c55decSDaniel P. Berrange 128017c55decSDaniel P. Berrange #ifndef WIN32 128117c55decSDaniel P. Berrange case AF_UNIX: 128217c55decSDaniel P. Berrange return socket_sockaddr_to_address_unix(sa, salen, errp); 128317c55decSDaniel P. Berrange #endif /* WIN32 */ 128417c55decSDaniel P. Berrange 12856a02c806SStefan Hajnoczi #ifdef CONFIG_AF_VSOCK 12866a02c806SStefan Hajnoczi case AF_VSOCK: 12876a02c806SStefan Hajnoczi return socket_sockaddr_to_address_vsock(sa, salen, errp); 12886a02c806SStefan Hajnoczi #endif 12896a02c806SStefan Hajnoczi 129017c55decSDaniel P. Berrange default: 129117c55decSDaniel P. Berrange error_setg(errp, "socket family %d unsupported", 129217c55decSDaniel P. Berrange sa->ss_family); 129317c55decSDaniel P. Berrange return NULL; 129417c55decSDaniel P. Berrange } 129517c55decSDaniel P. Berrange return 0; 129617c55decSDaniel P. Berrange } 129717c55decSDaniel P. Berrange 129817c55decSDaniel P. Berrange 1299bd269ebcSMarkus Armbruster SocketAddress *socket_local_address(int fd, Error **errp) 130017c55decSDaniel P. Berrange { 130117c55decSDaniel P. Berrange struct sockaddr_storage ss; 130217c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 130317c55decSDaniel P. Berrange 130417c55decSDaniel P. Berrange if (getsockname(fd, (struct sockaddr *)&ss, &sslen) < 0) { 1305b16a44e1SDaniel P. Berrange error_setg_errno(errp, errno, "%s", 130617c55decSDaniel P. Berrange "Unable to query local socket address"); 130717c55decSDaniel P. Berrange return NULL; 130817c55decSDaniel P. Berrange } 130917c55decSDaniel P. Berrange 131017c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 131117c55decSDaniel P. Berrange } 131217c55decSDaniel P. Berrange 131317c55decSDaniel P. Berrange 1314bd269ebcSMarkus Armbruster SocketAddress *socket_remote_address(int fd, Error **errp) 131517c55decSDaniel P. Berrange { 131617c55decSDaniel P. Berrange struct sockaddr_storage ss; 131717c55decSDaniel P. Berrange socklen_t sslen = sizeof(ss); 131817c55decSDaniel P. Berrange 131917c55decSDaniel P. Berrange if (getpeername(fd, (struct sockaddr *)&ss, &sslen) < 0) { 1320b16a44e1SDaniel P. Berrange error_setg_errno(errp, errno, "%s", 132117c55decSDaniel P. Berrange "Unable to query remote socket address"); 132217c55decSDaniel P. Berrange return NULL; 132317c55decSDaniel P. Berrange } 132417c55decSDaniel P. Berrange 132517c55decSDaniel P. Berrange return socket_sockaddr_to_address(&ss, sslen, errp); 132617c55decSDaniel P. Berrange } 13272a8e21c7SDaniel P. Berrange 1328bd269ebcSMarkus Armbruster char *socket_address_to_string(struct SocketAddress *addr, Error **errp) 13297e844959SAshijeet Acharya { 13307e844959SAshijeet Acharya char *buf; 13317e844959SAshijeet Acharya InetSocketAddress *inet; 13327e844959SAshijeet Acharya 13337e844959SAshijeet Acharya switch (addr->type) { 1334bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_INET: 1335bd269ebcSMarkus Armbruster inet = &addr->u.inet; 13367e844959SAshijeet Acharya if (strchr(inet->host, ':') == NULL) { 133744fdc764SMarkus Armbruster buf = g_strdup_printf("%s:%s", inet->host, inet->port); 13387e844959SAshijeet Acharya } else { 133944fdc764SMarkus Armbruster buf = g_strdup_printf("[%s]:%s", inet->host, inet->port); 13407e844959SAshijeet Acharya } 13417e844959SAshijeet Acharya break; 13427e844959SAshijeet Acharya 1343bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_UNIX: 1344bd269ebcSMarkus Armbruster buf = g_strdup(addr->u.q_unix.path); 13457e844959SAshijeet Acharya break; 13467e844959SAshijeet Acharya 1347bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_FD: 1348bd269ebcSMarkus Armbruster buf = g_strdup(addr->u.fd.str); 13497e844959SAshijeet Acharya break; 13507e844959SAshijeet Acharya 1351bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_TYPE_VSOCK: 13526a02c806SStefan Hajnoczi buf = g_strdup_printf("%s:%s", 1353bd269ebcSMarkus Armbruster addr->u.vsock.cid, 1354bd269ebcSMarkus Armbruster addr->u.vsock.port); 13556a02c806SStefan Hajnoczi break; 13566a02c806SStefan Hajnoczi 13577e844959SAshijeet Acharya default: 1358a6c76285SMarkus Armbruster abort(); 13597e844959SAshijeet Acharya } 13607e844959SAshijeet Acharya return buf; 13617e844959SAshijeet Acharya } 1362216411b8SMarkus Armbruster 1363bd269ebcSMarkus Armbruster SocketAddress *socket_address_flatten(SocketAddressLegacy *addr_legacy) 1364bd269ebcSMarkus Armbruster { 1365fc0f0059SMarkus Armbruster SocketAddress *addr; 1366bd269ebcSMarkus Armbruster 1367bd269ebcSMarkus Armbruster if (!addr_legacy) { 1368bd269ebcSMarkus Armbruster return NULL; 1369bd269ebcSMarkus Armbruster } 1370bd269ebcSMarkus Armbruster 1371fc0f0059SMarkus Armbruster addr = g_new(SocketAddress, 1); 1372fc0f0059SMarkus Armbruster 1373bd269ebcSMarkus Armbruster switch (addr_legacy->type) { 1374bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_INET: 1375bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_INET; 1376bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(InetSocketAddress, &addr->u.inet, 1377bd269ebcSMarkus Armbruster addr_legacy->u.inet.data); 1378bd269ebcSMarkus Armbruster break; 1379bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_UNIX: 1380bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_UNIX; 1381bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(UnixSocketAddress, &addr->u.q_unix, 1382bd269ebcSMarkus Armbruster addr_legacy->u.q_unix.data); 1383bd269ebcSMarkus Armbruster break; 1384bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_VSOCK: 1385bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_VSOCK; 1386bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(VsockSocketAddress, &addr->u.vsock, 1387bd269ebcSMarkus Armbruster addr_legacy->u.vsock.data); 1388bd269ebcSMarkus Armbruster break; 1389bd269ebcSMarkus Armbruster case SOCKET_ADDRESS_LEGACY_KIND_FD: 1390bd269ebcSMarkus Armbruster addr->type = SOCKET_ADDRESS_TYPE_FD; 1391bd269ebcSMarkus Armbruster QAPI_CLONE_MEMBERS(String, &addr->u.fd, addr_legacy->u.fd.data); 1392bd269ebcSMarkus Armbruster break; 1393bd269ebcSMarkus Armbruster default: 1394bd269ebcSMarkus Armbruster abort(); 1395bd269ebcSMarkus Armbruster } 1396bd269ebcSMarkus Armbruster 1397bd269ebcSMarkus Armbruster return addr; 1398bd269ebcSMarkus Armbruster } 1399