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/*
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* inet and unix socket functions for qemu
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*
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* (c) 2008 Gerd Hoffmann <kraxel@redhat.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; under version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Contributions after 2012-01-13 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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*/
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <ctype.h> |
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#include <errno.h> |
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#include <unistd.h> |
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|
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#include "qemu_socket.h" |
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#include "qemu-common.h" /* for qemu_isdigit */ |
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|
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#ifndef AI_ADDRCONFIG
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# define AI_ADDRCONFIG 0 |
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#endif
|
31 |
|
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static const int on=1, off=0; |
33 |
|
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/* used temporarely until all users are converted to QemuOpts */
|
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static QemuOptsList dummy_opts = {
|
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.name = "dummy",
|
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.head = QTAILQ_HEAD_INITIALIZER(dummy_opts.head), |
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.desc = { |
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{ |
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.name = "path",
|
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "host",
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "port",
|
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "to",
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.type = QEMU_OPT_NUMBER, |
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},{ |
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.name = "ipv4",
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.type = QEMU_OPT_BOOL, |
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},{ |
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.name = "ipv6",
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.type = QEMU_OPT_BOOL, |
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},{ |
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.name = "block",
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.type = QEMU_OPT_BOOL, |
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}, |
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{ /* end if list */ }
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}, |
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}; |
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|
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static int inet_getport(struct addrinfo *e) |
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{ |
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struct sockaddr_in *i4;
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struct sockaddr_in6 *i6;
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|
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switch (e->ai_family) {
|
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case PF_INET6:
|
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i6 = (void*)e->ai_addr;
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return ntohs(i6->sin6_port);
|
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case PF_INET:
|
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i4 = (void*)e->ai_addr;
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return ntohs(i4->sin_port);
|
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default:
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return 0; |
79 |
} |
80 |
} |
81 |
|
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static void inet_setport(struct addrinfo *e, int port) |
83 |
{ |
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struct sockaddr_in *i4;
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struct sockaddr_in6 *i6;
|
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|
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switch (e->ai_family) {
|
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case PF_INET6:
|
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i6 = (void*)e->ai_addr;
|
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i6->sin6_port = htons(port); |
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break;
|
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case PF_INET:
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i4 = (void*)e->ai_addr;
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i4->sin_port = htons(port); |
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break;
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} |
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} |
98 |
|
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const char *inet_strfamily(int family) |
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{ |
101 |
switch (family) {
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case PF_INET6: return "ipv6"; |
103 |
case PF_INET: return "ipv4"; |
104 |
case PF_UNIX: return "unix"; |
105 |
} |
106 |
return "unknown"; |
107 |
} |
108 |
|
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int inet_listen_opts(QemuOpts *opts, int port_offset, Error **errp) |
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{ |
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struct addrinfo ai,*res,*e;
|
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const char *addr; |
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char port[33]; |
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char uaddr[INET6_ADDRSTRLEN+1]; |
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char uport[33]; |
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int slisten, rc, to, port_min, port_max, p;
|
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|
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memset(&ai,0, sizeof(ai)); |
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ai.ai_flags = AI_PASSIVE | AI_ADDRCONFIG; |
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ai.ai_family = PF_UNSPEC; |
121 |
ai.ai_socktype = SOCK_STREAM; |
122 |
|
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if ((qemu_opt_get(opts, "host") == NULL) || |
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(qemu_opt_get(opts, "port") == NULL)) { |
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fprintf(stderr, "%s: host and/or port not specified\n", __FUNCTION__);
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error_set(errp, QERR_SOCKET_CREATE_FAILED); |
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return -1; |
128 |
} |
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pstrcpy(port, sizeof(port), qemu_opt_get(opts, "port")); |
130 |
addr = qemu_opt_get(opts, "host");
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|
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to = qemu_opt_get_number(opts, "to", 0); |
133 |
if (qemu_opt_get_bool(opts, "ipv4", 0)) |
134 |
ai.ai_family = PF_INET; |
135 |
if (qemu_opt_get_bool(opts, "ipv6", 0)) |
136 |
ai.ai_family = PF_INET6; |
137 |
|
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/* lookup */
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if (port_offset)
|
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snprintf(port, sizeof(port), "%d", atoi(port) + port_offset); |
141 |
rc = getaddrinfo(strlen(addr) ? addr : NULL, port, &ai, &res);
|
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if (rc != 0) { |
143 |
fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port,
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gai_strerror(rc)); |
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error_set(errp, QERR_SOCKET_CREATE_FAILED); |
146 |
return -1; |
147 |
} |
148 |
|
149 |
/* create socket + bind */
|
150 |
for (e = res; e != NULL; e = e->ai_next) { |
151 |
getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen,
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uaddr,INET6_ADDRSTRLEN,uport,32,
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NI_NUMERICHOST | NI_NUMERICSERV); |
154 |
slisten = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol); |
155 |
if (slisten < 0) { |
156 |
fprintf(stderr,"%s: socket(%s): %s\n", __FUNCTION__,
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inet_strfamily(e->ai_family), strerror(errno)); |
158 |
if (!e->ai_next) {
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error_set(errp, QERR_SOCKET_CREATE_FAILED); |
160 |
} |
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continue;
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} |
163 |
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setsockopt(slisten,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on)); |
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#ifdef IPV6_V6ONLY
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if (e->ai_family == PF_INET6) {
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/* listen on both ipv4 and ipv6 */
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setsockopt(slisten,IPPROTO_IPV6,IPV6_V6ONLY,(void*)&off,
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sizeof(off));
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} |
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#endif
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port_min = inet_getport(e); |
174 |
port_max = to ? to + port_offset : port_min; |
175 |
for (p = port_min; p <= port_max; p++) {
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inet_setport(e, p); |
177 |
if (bind(slisten, e->ai_addr, e->ai_addrlen) == 0) { |
178 |
goto listen;
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} |
180 |
if (p == port_max) {
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fprintf(stderr,"%s: bind(%s,%s,%d): %s\n", __FUNCTION__,
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inet_strfamily(e->ai_family), uaddr, inet_getport(e), |
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strerror(errno)); |
184 |
if (!e->ai_next) {
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error_set(errp, QERR_SOCKET_BIND_FAILED); |
186 |
} |
187 |
} |
188 |
} |
189 |
closesocket(slisten); |
190 |
} |
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fprintf(stderr, "%s: FAILED\n", __FUNCTION__);
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freeaddrinfo(res); |
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return -1; |
194 |
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listen:
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if (listen(slisten,1) != 0) { |
197 |
error_set(errp, QERR_SOCKET_LISTEN_FAILED); |
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perror("listen");
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closesocket(slisten); |
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freeaddrinfo(res); |
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return -1; |
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} |
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snprintf(uport, sizeof(uport), "%d", inet_getport(e) - port_offset); |
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qemu_opt_set(opts, "host", uaddr);
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qemu_opt_set(opts, "port", uport);
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qemu_opt_set(opts, "ipv6", (e->ai_family == PF_INET6) ? "on" : "off"); |
207 |
qemu_opt_set(opts, "ipv4", (e->ai_family != PF_INET6) ? "on" : "off"); |
208 |
freeaddrinfo(res); |
209 |
return slisten;
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} |
211 |
|
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int inet_connect_opts(QemuOpts *opts, Error **errp)
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{ |
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struct addrinfo ai,*res,*e;
|
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const char *addr; |
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const char *port; |
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char uaddr[INET6_ADDRSTRLEN+1]; |
218 |
char uport[33]; |
219 |
int sock,rc;
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bool block;
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|
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memset(&ai,0, sizeof(ai)); |
223 |
ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG; |
224 |
ai.ai_family = PF_UNSPEC; |
225 |
ai.ai_socktype = SOCK_STREAM; |
226 |
|
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addr = qemu_opt_get(opts, "host");
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port = qemu_opt_get(opts, "port");
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block = qemu_opt_get_bool(opts, "block", 0); |
230 |
if (addr == NULL || port == NULL) { |
231 |
fprintf(stderr, "inet_connect: host and/or port not specified\n");
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error_set(errp, QERR_SOCKET_CREATE_FAILED); |
233 |
return -1; |
234 |
} |
235 |
|
236 |
if (qemu_opt_get_bool(opts, "ipv4", 0)) |
237 |
ai.ai_family = PF_INET; |
238 |
if (qemu_opt_get_bool(opts, "ipv6", 0)) |
239 |
ai.ai_family = PF_INET6; |
240 |
|
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/* lookup */
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242 |
if (0 != (rc = getaddrinfo(addr, port, &ai, &res))) { |
243 |
fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port,
|
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gai_strerror(rc)); |
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error_set(errp, QERR_SOCKET_CREATE_FAILED); |
246 |
return -1; |
247 |
} |
248 |
|
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for (e = res; e != NULL; e = e->ai_next) { |
250 |
if (getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen, |
251 |
uaddr,INET6_ADDRSTRLEN,uport,32,
|
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NI_NUMERICHOST | NI_NUMERICSERV) != 0) {
|
253 |
fprintf(stderr,"%s: getnameinfo: oops\n", __FUNCTION__);
|
254 |
continue;
|
255 |
} |
256 |
sock = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol); |
257 |
if (sock < 0) { |
258 |
fprintf(stderr,"%s: socket(%s): %s\n", __FUNCTION__,
|
259 |
inet_strfamily(e->ai_family), strerror(errno)); |
260 |
continue;
|
261 |
} |
262 |
setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on)); |
263 |
if (!block) {
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264 |
socket_set_nonblock(sock); |
265 |
} |
266 |
/* connect to peer */
|
267 |
do {
|
268 |
rc = 0;
|
269 |
if (connect(sock, e->ai_addr, e->ai_addrlen) < 0) { |
270 |
rc = -socket_error(); |
271 |
} |
272 |
} while (rc == -EINTR);
|
273 |
|
274 |
#ifdef _WIN32
|
275 |
if (!block && (rc == -EINPROGRESS || rc == -EWOULDBLOCK
|
276 |
|| rc == -WSAEALREADY)) { |
277 |
#else
|
278 |
if (!block && (rc == -EINPROGRESS)) {
|
279 |
#endif
|
280 |
error_set(errp, QERR_SOCKET_CONNECT_IN_PROGRESS); |
281 |
} else if (rc < 0) { |
282 |
if (NULL == e->ai_next) |
283 |
fprintf(stderr, "%s: connect(%s,%s,%s,%s): %s\n", __FUNCTION__,
|
284 |
inet_strfamily(e->ai_family), |
285 |
e->ai_canonname, uaddr, uport, strerror(errno)); |
286 |
closesocket(sock); |
287 |
sock = -1;
|
288 |
continue;
|
289 |
} |
290 |
freeaddrinfo(res); |
291 |
return sock;
|
292 |
} |
293 |
error_set(errp, QERR_SOCKET_CONNECT_FAILED); |
294 |
freeaddrinfo(res); |
295 |
return -1; |
296 |
} |
297 |
|
298 |
int inet_dgram_opts(QemuOpts *opts)
|
299 |
{ |
300 |
struct addrinfo ai, *peer = NULL, *local = NULL; |
301 |
const char *addr; |
302 |
const char *port; |
303 |
char uaddr[INET6_ADDRSTRLEN+1]; |
304 |
char uport[33]; |
305 |
int sock = -1, rc; |
306 |
|
307 |
/* lookup peer addr */
|
308 |
memset(&ai,0, sizeof(ai)); |
309 |
ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG; |
310 |
ai.ai_family = PF_UNSPEC; |
311 |
ai.ai_socktype = SOCK_DGRAM; |
312 |
|
313 |
addr = qemu_opt_get(opts, "host");
|
314 |
port = qemu_opt_get(opts, "port");
|
315 |
if (addr == NULL || strlen(addr) == 0) { |
316 |
addr = "localhost";
|
317 |
} |
318 |
if (port == NULL || strlen(port) == 0) { |
319 |
fprintf(stderr, "inet_dgram: port not specified\n");
|
320 |
return -1; |
321 |
} |
322 |
|
323 |
if (qemu_opt_get_bool(opts, "ipv4", 0)) |
324 |
ai.ai_family = PF_INET; |
325 |
if (qemu_opt_get_bool(opts, "ipv6", 0)) |
326 |
ai.ai_family = PF_INET6; |
327 |
|
328 |
if (0 != (rc = getaddrinfo(addr, port, &ai, &peer))) { |
329 |
fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port,
|
330 |
gai_strerror(rc)); |
331 |
return -1; |
332 |
} |
333 |
|
334 |
/* lookup local addr */
|
335 |
memset(&ai,0, sizeof(ai)); |
336 |
ai.ai_flags = AI_PASSIVE; |
337 |
ai.ai_family = peer->ai_family; |
338 |
ai.ai_socktype = SOCK_DGRAM; |
339 |
|
340 |
addr = qemu_opt_get(opts, "localaddr");
|
341 |
port = qemu_opt_get(opts, "localport");
|
342 |
if (addr == NULL || strlen(addr) == 0) { |
343 |
addr = NULL;
|
344 |
} |
345 |
if (!port || strlen(port) == 0) |
346 |
port = "0";
|
347 |
|
348 |
if (0 != (rc = getaddrinfo(addr, port, &ai, &local))) { |
349 |
fprintf(stderr,"getaddrinfo(%s,%s): %s\n", addr, port,
|
350 |
gai_strerror(rc)); |
351 |
return -1; |
352 |
} |
353 |
|
354 |
/* create socket */
|
355 |
sock = qemu_socket(peer->ai_family, peer->ai_socktype, peer->ai_protocol); |
356 |
if (sock < 0) { |
357 |
fprintf(stderr,"%s: socket(%s): %s\n", __FUNCTION__,
|
358 |
inet_strfamily(peer->ai_family), strerror(errno)); |
359 |
goto err;
|
360 |
} |
361 |
setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,(void*)&on,sizeof(on)); |
362 |
|
363 |
/* bind socket */
|
364 |
if (getnameinfo((struct sockaddr*)local->ai_addr,local->ai_addrlen, |
365 |
uaddr,INET6_ADDRSTRLEN,uport,32,
|
366 |
NI_NUMERICHOST | NI_NUMERICSERV) != 0) {
|
367 |
fprintf(stderr, "%s: getnameinfo: oops\n", __FUNCTION__);
|
368 |
goto err;
|
369 |
} |
370 |
if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) { |
371 |
fprintf(stderr,"%s: bind(%s,%s,%d): OK\n", __FUNCTION__,
|
372 |
inet_strfamily(local->ai_family), uaddr, inet_getport(local)); |
373 |
goto err;
|
374 |
} |
375 |
|
376 |
/* connect to peer */
|
377 |
if (getnameinfo((struct sockaddr*)peer->ai_addr, peer->ai_addrlen, |
378 |
uaddr, INET6_ADDRSTRLEN, uport, 32,
|
379 |
NI_NUMERICHOST | NI_NUMERICSERV) != 0) {
|
380 |
fprintf(stderr, "%s: getnameinfo: oops\n", __FUNCTION__);
|
381 |
goto err;
|
382 |
} |
383 |
if (connect(sock,peer->ai_addr,peer->ai_addrlen) < 0) { |
384 |
fprintf(stderr, "%s: connect(%s,%s,%s,%s): %s\n", __FUNCTION__,
|
385 |
inet_strfamily(peer->ai_family), |
386 |
peer->ai_canonname, uaddr, uport, strerror(errno)); |
387 |
goto err;
|
388 |
} |
389 |
|
390 |
freeaddrinfo(local); |
391 |
freeaddrinfo(peer); |
392 |
return sock;
|
393 |
|
394 |
err:
|
395 |
if (-1 != sock) |
396 |
closesocket(sock); |
397 |
if (local)
|
398 |
freeaddrinfo(local); |
399 |
if (peer)
|
400 |
freeaddrinfo(peer); |
401 |
return -1; |
402 |
} |
403 |
|
404 |
/* compatibility wrapper */
|
405 |
static int inet_parse(QemuOpts *opts, const char *str) |
406 |
{ |
407 |
const char *optstr, *h; |
408 |
char addr[64]; |
409 |
char port[33]; |
410 |
int pos;
|
411 |
|
412 |
/* parse address */
|
413 |
if (str[0] == ':') { |
414 |
/* no host given */
|
415 |
addr[0] = '\0'; |
416 |
if (1 != sscanf(str,":%32[^,]%n",port,&pos)) { |
417 |
fprintf(stderr, "%s: portonly parse error (%s)\n",
|
418 |
__FUNCTION__, str); |
419 |
return -1; |
420 |
} |
421 |
} else if (str[0] == '[') { |
422 |
/* IPv6 addr */
|
423 |
if (2 != sscanf(str,"[%64[^]]]:%32[^,]%n",addr,port,&pos)) { |
424 |
fprintf(stderr, "%s: ipv6 parse error (%s)\n",
|
425 |
__FUNCTION__, str); |
426 |
return -1; |
427 |
} |
428 |
qemu_opt_set(opts, "ipv6", "on"); |
429 |
} else if (qemu_isdigit(str[0])) { |
430 |
/* IPv4 addr */
|
431 |
if (2 != sscanf(str,"%64[0-9.]:%32[^,]%n",addr,port,&pos)) { |
432 |
fprintf(stderr, "%s: ipv4 parse error (%s)\n",
|
433 |
__FUNCTION__, str); |
434 |
return -1; |
435 |
} |
436 |
qemu_opt_set(opts, "ipv4", "on"); |
437 |
} else {
|
438 |
/* hostname */
|
439 |
if (2 != sscanf(str,"%64[^:]:%32[^,]%n",addr,port,&pos)) { |
440 |
fprintf(stderr, "%s: hostname parse error (%s)\n",
|
441 |
__FUNCTION__, str); |
442 |
return -1; |
443 |
} |
444 |
} |
445 |
qemu_opt_set(opts, "host", addr);
|
446 |
qemu_opt_set(opts, "port", port);
|
447 |
|
448 |
/* parse options */
|
449 |
optstr = str + pos; |
450 |
h = strstr(optstr, ",to=");
|
451 |
if (h)
|
452 |
qemu_opt_set(opts, "to", h+4); |
453 |
if (strstr(optstr, ",ipv4")) |
454 |
qemu_opt_set(opts, "ipv4", "on"); |
455 |
if (strstr(optstr, ",ipv6")) |
456 |
qemu_opt_set(opts, "ipv6", "on"); |
457 |
return 0; |
458 |
} |
459 |
|
460 |
int inet_listen(const char *str, char *ostr, int olen, |
461 |
int socktype, int port_offset, Error **errp) |
462 |
{ |
463 |
QemuOpts *opts; |
464 |
char *optstr;
|
465 |
int sock = -1; |
466 |
|
467 |
opts = qemu_opts_create(&dummy_opts, NULL, 0, NULL); |
468 |
if (inet_parse(opts, str) == 0) { |
469 |
sock = inet_listen_opts(opts, port_offset, errp); |
470 |
if (sock != -1 && ostr) { |
471 |
optstr = strchr(str, ',');
|
472 |
if (qemu_opt_get_bool(opts, "ipv6", 0)) { |
473 |
snprintf(ostr, olen, "[%s]:%s%s",
|
474 |
qemu_opt_get(opts, "host"),
|
475 |
qemu_opt_get(opts, "port"),
|
476 |
optstr ? optstr : "");
|
477 |
} else {
|
478 |
snprintf(ostr, olen, "%s:%s%s",
|
479 |
qemu_opt_get(opts, "host"),
|
480 |
qemu_opt_get(opts, "port"),
|
481 |
optstr ? optstr : "");
|
482 |
} |
483 |
} |
484 |
} else {
|
485 |
error_set(errp, QERR_SOCKET_CREATE_FAILED); |
486 |
} |
487 |
qemu_opts_del(opts); |
488 |
return sock;
|
489 |
} |
490 |
|
491 |
int inet_connect(const char *str, bool block, Error **errp) |
492 |
{ |
493 |
QemuOpts *opts; |
494 |
int sock = -1; |
495 |
|
496 |
opts = qemu_opts_create(&dummy_opts, NULL, 0, NULL); |
497 |
if (inet_parse(opts, str) == 0) { |
498 |
if (block) {
|
499 |
qemu_opt_set(opts, "block", "on"); |
500 |
} |
501 |
sock = inet_connect_opts(opts, errp); |
502 |
} else {
|
503 |
error_set(errp, QERR_SOCKET_CREATE_FAILED); |
504 |
} |
505 |
qemu_opts_del(opts); |
506 |
return sock;
|
507 |
} |
508 |
|
509 |
#ifndef _WIN32
|
510 |
|
511 |
int unix_listen_opts(QemuOpts *opts)
|
512 |
{ |
513 |
struct sockaddr_un un;
|
514 |
const char *path = qemu_opt_get(opts, "path"); |
515 |
int sock, fd;
|
516 |
|
517 |
sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0);
|
518 |
if (sock < 0) { |
519 |
perror("socket(unix)");
|
520 |
return -1; |
521 |
} |
522 |
|
523 |
memset(&un, 0, sizeof(un)); |
524 |
un.sun_family = AF_UNIX; |
525 |
if (path && strlen(path)) {
|
526 |
snprintf(un.sun_path, sizeof(un.sun_path), "%s", path); |
527 |
} else {
|
528 |
char *tmpdir = getenv("TMPDIR"); |
529 |
snprintf(un.sun_path, sizeof(un.sun_path), "%s/qemu-socket-XXXXXX", |
530 |
tmpdir ? tmpdir : "/tmp");
|
531 |
/*
|
532 |
* This dummy fd usage silences the mktemp() unsecure warning.
|
533 |
* Using mkstemp() doesn't make things more secure here
|
534 |
* though. bind() complains about existing files, so we have
|
535 |
* to unlink first and thus re-open the race window. The
|
536 |
* worst case possible is bind() failing, i.e. a DoS attack.
|
537 |
*/
|
538 |
fd = mkstemp(un.sun_path); close(fd); |
539 |
qemu_opt_set(opts, "path", un.sun_path);
|
540 |
} |
541 |
|
542 |
unlink(un.sun_path); |
543 |
if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) { |
544 |
fprintf(stderr, "bind(unix:%s): %s\n", un.sun_path, strerror(errno));
|
545 |
goto err;
|
546 |
} |
547 |
if (listen(sock, 1) < 0) { |
548 |
fprintf(stderr, "listen(unix:%s): %s\n", un.sun_path, strerror(errno));
|
549 |
goto err;
|
550 |
} |
551 |
|
552 |
return sock;
|
553 |
|
554 |
err:
|
555 |
closesocket(sock); |
556 |
return -1; |
557 |
} |
558 |
|
559 |
int unix_connect_opts(QemuOpts *opts)
|
560 |
{ |
561 |
struct sockaddr_un un;
|
562 |
const char *path = qemu_opt_get(opts, "path"); |
563 |
int sock;
|
564 |
|
565 |
if (NULL == path) { |
566 |
fprintf(stderr, "unix connect: no path specified\n");
|
567 |
return -1; |
568 |
} |
569 |
|
570 |
sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0);
|
571 |
if (sock < 0) { |
572 |
perror("socket(unix)");
|
573 |
return -1; |
574 |
} |
575 |
|
576 |
memset(&un, 0, sizeof(un)); |
577 |
un.sun_family = AF_UNIX; |
578 |
snprintf(un.sun_path, sizeof(un.sun_path), "%s", path); |
579 |
if (connect(sock, (struct sockaddr*) &un, sizeof(un)) < 0) { |
580 |
fprintf(stderr, "connect(unix:%s): %s\n", path, strerror(errno));
|
581 |
close(sock); |
582 |
return -1; |
583 |
} |
584 |
|
585 |
return sock;
|
586 |
} |
587 |
|
588 |
/* compatibility wrapper */
|
589 |
int unix_listen(const char *str, char *ostr, int olen) |
590 |
{ |
591 |
QemuOpts *opts; |
592 |
char *path, *optstr;
|
593 |
int sock, len;
|
594 |
|
595 |
opts = qemu_opts_create(&dummy_opts, NULL, 0, NULL); |
596 |
|
597 |
optstr = strchr(str, ',');
|
598 |
if (optstr) {
|
599 |
len = optstr - str; |
600 |
if (len) {
|
601 |
path = g_malloc(len+1);
|
602 |
snprintf(path, len+1, "%.*s", len, str); |
603 |
qemu_opt_set(opts, "path", path);
|
604 |
g_free(path); |
605 |
} |
606 |
} else {
|
607 |
qemu_opt_set(opts, "path", str);
|
608 |
} |
609 |
|
610 |
sock = unix_listen_opts(opts); |
611 |
|
612 |
if (sock != -1 && ostr) |
613 |
snprintf(ostr, olen, "%s%s", qemu_opt_get(opts, "path"), optstr ? optstr : ""); |
614 |
qemu_opts_del(opts); |
615 |
return sock;
|
616 |
} |
617 |
|
618 |
int unix_connect(const char *path) |
619 |
{ |
620 |
QemuOpts *opts; |
621 |
int sock;
|
622 |
|
623 |
opts = qemu_opts_create(&dummy_opts, NULL, 0, NULL); |
624 |
qemu_opt_set(opts, "path", path);
|
625 |
sock = unix_connect_opts(opts); |
626 |
qemu_opts_del(opts); |
627 |
return sock;
|
628 |
} |
629 |
|
630 |
#else
|
631 |
|
632 |
int unix_listen_opts(QemuOpts *opts)
|
633 |
{ |
634 |
fprintf(stderr, "unix sockets are not available on windows\n");
|
635 |
errno = ENOTSUP; |
636 |
return -1; |
637 |
} |
638 |
|
639 |
int unix_connect_opts(QemuOpts *opts)
|
640 |
{ |
641 |
fprintf(stderr, "unix sockets are not available on windows\n");
|
642 |
errno = ENOTSUP; |
643 |
return -1; |
644 |
} |
645 |
|
646 |
int unix_listen(const char *path, char *ostr, int olen) |
647 |
{ |
648 |
fprintf(stderr, "unix sockets are not available on windows\n");
|
649 |
errno = ENOTSUP; |
650 |
return -1; |
651 |
} |
652 |
|
653 |
int unix_connect(const char *path) |
654 |
{ |
655 |
fprintf(stderr, "unix sockets are not available on windows\n");
|
656 |
errno = ENOTSUP; |
657 |
return -1; |
658 |
} |
659 |
|
660 |
#endif
|
661 |
|
662 |
#ifdef _WIN32
|
663 |
static void socket_cleanup(void) |
664 |
{ |
665 |
WSACleanup(); |
666 |
} |
667 |
#endif
|
668 |
|
669 |
int socket_init(void) |
670 |
{ |
671 |
#ifdef _WIN32
|
672 |
WSADATA Data; |
673 |
int ret, err;
|
674 |
|
675 |
ret = WSAStartup(MAKEWORD(2,2), &Data); |
676 |
if (ret != 0) { |
677 |
err = WSAGetLastError(); |
678 |
fprintf(stderr, "WSAStartup: %d\n", err);
|
679 |
return -1; |
680 |
} |
681 |
atexit(socket_cleanup); |
682 |
#endif
|
683 |
return 0; |
684 |
} |