2008-11-14 00:19:54 +08:00
|
|
|
/*
|
|
|
|
* inet and unix socket functions for qemu
|
|
|
|
*
|
|
|
|
* (c) 2008 Gerd Hoffmann <kraxel@redhat.com>
|
|
|
|
*
|
|
|
|
* This program is free software; you can redistribute it and/or modify
|
|
|
|
* it under the terms of the GNU General Public License as published by
|
|
|
|
* the Free Software Foundation; under version 2 of the License.
|
|
|
|
*
|
|
|
|
* This program is distributed in the hope that it will be useful,
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
* GNU General Public License for more details.
|
2012-07-09 17:08:39 +08:00
|
|
|
*
|
|
|
|
* Contributions after 2012-01-13 are licensed under the terms of the
|
|
|
|
* GNU GPL, version 2 or (at your option) any later version.
|
2008-11-14 00:19:54 +08:00
|
|
|
*/
|
2016-01-30 01:49:55 +08:00
|
|
|
#include "qemu/osdep.h"
|
2008-11-12 04:46:40 +08:00
|
|
|
|
2016-10-14 17:00:55 +08:00
|
|
|
#ifdef CONFIG_AF_VSOCK
|
|
|
|
#include <linux/vm_sockets.h>
|
|
|
|
#endif /* CONFIG_AF_VSOCK */
|
|
|
|
|
2012-12-18 01:19:49 +08:00
|
|
|
#include "monitor/monitor.h"
|
2017-04-26 15:36:41 +08:00
|
|
|
#include "qapi/clone-visitor.h"
|
include/qemu/osdep.h: Don't include qapi/error.h
Commit 57cb38b included qapi/error.h into qemu/osdep.h to get the
Error typedef. Since then, we've moved to include qemu/osdep.h
everywhere. Its file comment explains: "To avoid getting into
possible circular include dependencies, this file should not include
any other QEMU headers, with the exceptions of config-host.h,
compiler.h, os-posix.h and os-win32.h, all of which are doing a
similar job to this file and are under similar constraints."
qapi/error.h doesn't do a similar job, and it doesn't adhere to
similar constraints: it includes qapi-types.h. That's in excess of
100KiB of crap most .c files don't actually need.
Add the typedef to qemu/typedefs.h, and include that instead of
qapi/error.h. Include qapi/error.h in .c files that need it and don't
get it now. Include qapi-types.h in qom/object.h for uint16List.
Update scripts/clean-includes accordingly. Update it further to match
reality: replace config.h by config-target.h, add sysemu/os-posix.h,
sysemu/os-win32.h. Update the list of includes in the qemu/osdep.h
comment quoted above similarly.
This reduces the number of objects depending on qapi/error.h from "all
of them" to less than a third. Unfortunately, the number depending on
qapi-types.h shrinks only a little. More work is needed for that one.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
[Fix compilation without the spice devel packages. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-14 16:01:28 +08:00
|
|
|
#include "qapi/error.h"
|
2018-02-11 17:36:01 +08:00
|
|
|
#include "qapi/qapi-visit-sockets.h"
|
2012-12-18 01:20:00 +08:00
|
|
|
#include "qemu/sockets.h"
|
|
|
|
#include "qemu/main-loop.h"
|
2016-09-30 22:45:27 +08:00
|
|
|
#include "qapi/qobject-input-visitor.h"
|
|
|
|
#include "qapi/qobject-output-visitor.h"
|
2016-03-21 01:16:19 +08:00
|
|
|
#include "qemu/cutils.h"
|
2008-11-12 04:46:40 +08:00
|
|
|
|
|
|
|
#ifndef AI_ADDRCONFIG
|
|
|
|
# define AI_ADDRCONFIG 0
|
|
|
|
#endif
|
2016-04-05 00:22:00 +08:00
|
|
|
|
2015-05-21 20:33:29 +08:00
|
|
|
#ifndef AI_V4MAPPED
|
|
|
|
# define AI_V4MAPPED 0
|
|
|
|
#endif
|
2008-11-12 04:46:40 +08:00
|
|
|
|
2016-07-19 19:58:52 +08:00
|
|
|
#ifndef AI_NUMERICSERV
|
|
|
|
# define AI_NUMERICSERV 0
|
|
|
|
#endif
|
|
|
|
|
2009-09-10 16:58:37 +08:00
|
|
|
|
2008-11-12 04:46:40 +08:00
|
|
|
static int inet_getport(struct addrinfo *e)
|
|
|
|
{
|
|
|
|
struct sockaddr_in *i4;
|
|
|
|
struct sockaddr_in6 *i6;
|
|
|
|
|
|
|
|
switch (e->ai_family) {
|
|
|
|
case PF_INET6:
|
|
|
|
i6 = (void*)e->ai_addr;
|
|
|
|
return ntohs(i6->sin6_port);
|
|
|
|
case PF_INET:
|
|
|
|
i4 = (void*)e->ai_addr;
|
|
|
|
return ntohs(i4->sin_port);
|
|
|
|
default:
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void inet_setport(struct addrinfo *e, int port)
|
|
|
|
{
|
|
|
|
struct sockaddr_in *i4;
|
|
|
|
struct sockaddr_in6 *i6;
|
|
|
|
|
|
|
|
switch (e->ai_family) {
|
|
|
|
case PF_INET6:
|
|
|
|
i6 = (void*)e->ai_addr;
|
|
|
|
i6->sin6_port = htons(port);
|
|
|
|
break;
|
|
|
|
case PF_INET:
|
|
|
|
i4 = (void*)e->ai_addr;
|
|
|
|
i4->sin_port = htons(port);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-06-18 14:43:30 +08:00
|
|
|
NetworkAddressFamily inet_netfamily(int family)
|
|
|
|
{
|
|
|
|
switch (family) {
|
|
|
|
case PF_INET6: return NETWORK_ADDRESS_FAMILY_IPV6;
|
|
|
|
case PF_INET: return NETWORK_ADDRESS_FAMILY_IPV4;
|
|
|
|
case PF_UNIX: return NETWORK_ADDRESS_FAMILY_UNIX;
|
2016-10-14 17:00:55 +08:00
|
|
|
#ifdef CONFIG_AF_VSOCK
|
|
|
|
case PF_VSOCK: return NETWORK_ADDRESS_FAMILY_VSOCK;
|
|
|
|
#endif /* CONFIG_AF_VSOCK */
|
2014-06-18 14:43:30 +08:00
|
|
|
}
|
|
|
|
return NETWORK_ADDRESS_FAMILY_UNKNOWN;
|
|
|
|
}
|
|
|
|
|
2016-01-11 21:17:02 +08:00
|
|
|
/*
|
|
|
|
* Matrix we're trying to apply
|
|
|
|
*
|
|
|
|
* ipv4 ipv6 family
|
|
|
|
* - - PF_UNSPEC
|
|
|
|
* - f PF_INET
|
|
|
|
* - t PF_INET6
|
|
|
|
* f - PF_INET6
|
|
|
|
* f f <error>
|
|
|
|
* f t PF_INET6
|
|
|
|
* t - PF_INET
|
|
|
|
* t f PF_INET
|
sockets: ensure we don't accept IPv4 clients when IPv4 is disabled
Currently if you disable listening on IPv4 addresses, via the
CLI flag ipv4=off, we still mistakenly accept IPv4 clients via
the IPv6 listener socket due to IPV6_V6ONLY flag being unset.
We must ensure IPV6_V6ONLY is always set if ipv4=off
This fixes the following scenarios
-incoming tcp::9000,ipv6=on
-incoming tcp:[::]:9000,ipv6=on
-chardev socket,id=cdev0,host=,port=9000,server,nowait,ipv4=off
-chardev socket,id=cdev0,host=,port=9000,server,nowait,ipv6=on
-chardev socket,id=cdev0,host=::,port=9000,server,nowait,ipv4=off
-chardev socket,id=cdev0,host=::,port=9000,server,nowait,ipv6=on
which all mistakenly accepted IPv4 clients
Acked-by: Gerd Hoffmann <kraxel@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-05-17 21:17:55 +08:00
|
|
|
* t t PF_INET6/PF_UNSPEC
|
2016-01-11 21:17:02 +08:00
|
|
|
*
|
2016-03-14 17:58:29 +08:00
|
|
|
* NB, this matrix is only about getting the necessary results
|
2016-01-11 21:17:02 +08:00
|
|
|
* from getaddrinfo(). Some of the cases require further work
|
|
|
|
* after reading results from getaddrinfo in order to fully
|
sockets: ensure we don't accept IPv4 clients when IPv4 is disabled
Currently if you disable listening on IPv4 addresses, via the
CLI flag ipv4=off, we still mistakenly accept IPv4 clients via
the IPv6 listener socket due to IPV6_V6ONLY flag being unset.
We must ensure IPV6_V6ONLY is always set if ipv4=off
This fixes the following scenarios
-incoming tcp::9000,ipv6=on
-incoming tcp:[::]:9000,ipv6=on
-chardev socket,id=cdev0,host=,port=9000,server,nowait,ipv4=off
-chardev socket,id=cdev0,host=,port=9000,server,nowait,ipv6=on
-chardev socket,id=cdev0,host=::,port=9000,server,nowait,ipv4=off
-chardev socket,id=cdev0,host=::,port=9000,server,nowait,ipv6=on
which all mistakenly accepted IPv4 clients
Acked-by: Gerd Hoffmann <kraxel@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-05-17 21:17:55 +08:00
|
|
|
* apply the logic the end user wants.
|
|
|
|
*
|
|
|
|
* In the first and last cases, we must set IPV6_V6ONLY=0
|
|
|
|
* when binding, to allow a single listener to potentially
|
|
|
|
* accept both IPv4+6 addresses.
|
2016-01-11 21:17:02 +08:00
|
|
|
*/
|
2016-07-19 19:54:47 +08:00
|
|
|
int inet_ai_family_from_address(InetSocketAddress *addr,
|
|
|
|
Error **errp)
|
2016-01-11 21:17:02 +08:00
|
|
|
{
|
|
|
|
if (addr->has_ipv6 && addr->has_ipv4 &&
|
|
|
|
!addr->ipv6 && !addr->ipv4) {
|
|
|
|
error_setg(errp, "Cannot disable IPv4 and IPv6 at same time");
|
|
|
|
return PF_UNSPEC;
|
|
|
|
}
|
sockets: ensure we don't accept IPv4 clients when IPv4 is disabled
Currently if you disable listening on IPv4 addresses, via the
CLI flag ipv4=off, we still mistakenly accept IPv4 clients via
the IPv6 listener socket due to IPV6_V6ONLY flag being unset.
We must ensure IPV6_V6ONLY is always set if ipv4=off
This fixes the following scenarios
-incoming tcp::9000,ipv6=on
-incoming tcp:[::]:9000,ipv6=on
-chardev socket,id=cdev0,host=,port=9000,server,nowait,ipv4=off
-chardev socket,id=cdev0,host=,port=9000,server,nowait,ipv6=on
-chardev socket,id=cdev0,host=::,port=9000,server,nowait,ipv4=off
-chardev socket,id=cdev0,host=::,port=9000,server,nowait,ipv6=on
which all mistakenly accepted IPv4 clients
Acked-by: Gerd Hoffmann <kraxel@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-05-17 21:17:55 +08:00
|
|
|
if ((addr->has_ipv6 && addr->ipv6) && (addr->has_ipv4 && addr->ipv4)) {
|
|
|
|
/*
|
|
|
|
* Some backends can only do a single listener. In that case
|
|
|
|
* we want empty hostname to resolve to "::" and then use the
|
|
|
|
* flag IPV6_V6ONLY==0 to get both protocols on 1 socket. This
|
|
|
|
* doesn't work for addresses other than "", so they're just
|
|
|
|
* inevitably broken until multiple listeners can be used,
|
|
|
|
* and thus we honour getaddrinfo automatic protocol detection
|
|
|
|
* Once all backends do multi-listener, remove the PF_INET6
|
|
|
|
* branch entirely.
|
|
|
|
*/
|
|
|
|
if (!addr->host || g_str_equal(addr->host, "")) {
|
|
|
|
return PF_INET6;
|
|
|
|
} else {
|
|
|
|
return PF_UNSPEC;
|
|
|
|
}
|
|
|
|
}
|
2016-01-11 21:17:02 +08:00
|
|
|
if ((addr->has_ipv6 && addr->ipv6) || (addr->has_ipv4 && !addr->ipv4)) {
|
|
|
|
return PF_INET6;
|
|
|
|
}
|
|
|
|
if ((addr->has_ipv4 && addr->ipv4) || (addr->has_ipv6 && !addr->ipv6)) {
|
|
|
|
return PF_INET;
|
|
|
|
}
|
|
|
|
return PF_UNSPEC;
|
|
|
|
}
|
|
|
|
|
2017-08-07 18:58:41 +08:00
|
|
|
static int create_fast_reuse_socket(struct addrinfo *e)
|
|
|
|
{
|
|
|
|
int slisten = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol);
|
|
|
|
if (slisten < 0) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
socket_set_fast_reuse(slisten);
|
|
|
|
return slisten;
|
|
|
|
}
|
|
|
|
|
2017-08-07 18:58:40 +08:00
|
|
|
static int try_bind(int socket, InetSocketAddress *saddr, struct addrinfo *e)
|
|
|
|
{
|
|
|
|
#ifndef IPV6_V6ONLY
|
|
|
|
return bind(socket, e->ai_addr, e->ai_addrlen);
|
|
|
|
#else
|
|
|
|
/*
|
|
|
|
* Deals with first & last cases in matrix in comment
|
|
|
|
* for inet_ai_family_from_address().
|
|
|
|
*/
|
|
|
|
int v6only =
|
|
|
|
((!saddr->has_ipv4 && !saddr->has_ipv6) ||
|
|
|
|
(saddr->has_ipv4 && saddr->ipv4 &&
|
|
|
|
saddr->has_ipv6 && saddr->ipv6)) ? 0 : 1;
|
|
|
|
int stat;
|
|
|
|
|
|
|
|
rebind:
|
|
|
|
if (e->ai_family == PF_INET6) {
|
|
|
|
qemu_setsockopt(socket, IPPROTO_IPV6, IPV6_V6ONLY, &v6only,
|
|
|
|
sizeof(v6only));
|
|
|
|
}
|
|
|
|
|
|
|
|
stat = bind(socket, e->ai_addr, e->ai_addrlen);
|
|
|
|
if (!stat) {
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we got EADDRINUSE from an IPv6 bind & v6only is unset,
|
|
|
|
* it could be that the IPv4 port is already claimed, so retry
|
|
|
|
* with v6only set
|
|
|
|
*/
|
|
|
|
if (e->ai_family == PF_INET6 && errno == EADDRINUSE && !v6only) {
|
|
|
|
v6only = 1;
|
|
|
|
goto rebind;
|
|
|
|
}
|
|
|
|
return stat;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
2016-01-11 21:17:02 +08:00
|
|
|
static int inet_listen_saddr(InetSocketAddress *saddr,
|
|
|
|
int port_offset,
|
|
|
|
Error **errp)
|
2008-11-12 04:46:40 +08:00
|
|
|
{
|
|
|
|
struct addrinfo ai,*res,*e;
|
|
|
|
char port[33];
|
|
|
|
char uaddr[INET6_ADDRSTRLEN+1];
|
|
|
|
char uport[33];
|
2017-08-07 18:58:42 +08:00
|
|
|
int rc, port_min, port_max, p;
|
2017-10-20 17:18:39 +08:00
|
|
|
int slisten = -1;
|
2017-08-07 18:58:42 +08:00
|
|
|
int saved_errno = 0;
|
|
|
|
bool socket_created = false;
|
2016-01-11 21:17:02 +08:00
|
|
|
Error *err = NULL;
|
2008-11-12 04:46:40 +08:00
|
|
|
|
|
|
|
memset(&ai,0, sizeof(ai));
|
2015-05-21 20:33:29 +08:00
|
|
|
ai.ai_flags = AI_PASSIVE;
|
2016-07-19 19:58:52 +08:00
|
|
|
if (saddr->has_numeric && saddr->numeric) {
|
|
|
|
ai.ai_flags |= AI_NUMERICHOST | AI_NUMERICSERV;
|
|
|
|
}
|
2016-01-11 21:17:02 +08:00
|
|
|
ai.ai_family = inet_ai_family_from_address(saddr, &err);
|
2009-09-10 16:58:41 +08:00
|
|
|
ai.ai_socktype = SOCK_STREAM;
|
2008-11-12 04:46:40 +08:00
|
|
|
|
2016-01-11 21:17:02 +08:00
|
|
|
if (err) {
|
|
|
|
error_propagate(errp, err);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (saddr->host == NULL) {
|
2015-09-01 21:46:50 +08:00
|
|
|
error_setg(errp, "host not specified");
|
2009-09-10 16:58:41 +08:00
|
|
|
return -1;
|
2008-11-12 04:46:40 +08:00
|
|
|
}
|
2016-01-11 21:17:02 +08:00
|
|
|
if (saddr->port != NULL) {
|
|
|
|
pstrcpy(port, sizeof(port), saddr->port);
|
2015-09-01 21:46:50 +08:00
|
|
|
} else {
|
|
|
|
port[0] = '\0';
|
|
|
|
}
|
2008-11-12 04:46:40 +08:00
|
|
|
|
|
|
|
/* lookup */
|
2013-12-11 19:58:41 +08:00
|
|
|
if (port_offset) {
|
|
|
|
unsigned long long baseport;
|
2015-09-01 21:46:50 +08:00
|
|
|
if (strlen(port) == 0) {
|
|
|
|
error_setg(errp, "port not specified");
|
|
|
|
return -1;
|
|
|
|
}
|
2013-12-11 19:58:41 +08:00
|
|
|
if (parse_uint_full(port, &baseport, 10) < 0) {
|
|
|
|
error_setg(errp, "can't convert to a number: %s", port);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
if (baseport > 65535 ||
|
|
|
|
baseport + port_offset > 65535) {
|
|
|
|
error_setg(errp, "port %s out of range", port);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
snprintf(port, sizeof(port), "%d", (int)baseport + port_offset);
|
|
|
|
}
|
2016-01-11 21:17:02 +08:00
|
|
|
rc = getaddrinfo(strlen(saddr->host) ? saddr->host : NULL,
|
2015-09-01 21:46:50 +08:00
|
|
|
strlen(port) ? port : NULL, &ai, &res);
|
2008-11-12 04:46:40 +08:00
|
|
|
if (rc != 0) {
|
2016-01-11 21:17:02 +08:00
|
|
|
error_setg(errp, "address resolution failed for %s:%s: %s",
|
|
|
|
saddr->host, port, gai_strerror(rc));
|
2008-11-12 04:46:40 +08:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2017-08-07 18:58:42 +08:00
|
|
|
/* create socket + bind/listen */
|
2008-11-12 04:46:40 +08:00
|
|
|
for (e = res; e != NULL; e = e->ai_next) {
|
2009-05-06 17:57:03 +08:00
|
|
|
getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen,
|
|
|
|
uaddr,INET6_ADDRSTRLEN,uport,32,
|
|
|
|
NI_NUMERICHOST | NI_NUMERICSERV);
|
2017-08-07 18:58:41 +08:00
|
|
|
|
2012-02-07 22:09:15 +08:00
|
|
|
port_min = inet_getport(e);
|
2016-01-11 21:17:02 +08:00
|
|
|
port_max = saddr->has_to ? saddr->to + port_offset : port_min;
|
2012-02-07 22:09:15 +08:00
|
|
|
for (p = port_min; p <= port_max; p++) {
|
|
|
|
inet_setport(e, p);
|
2017-10-20 17:18:39 +08:00
|
|
|
|
|
|
|
slisten = create_fast_reuse_socket(e);
|
|
|
|
if (slisten < 0) {
|
|
|
|
/* First time we expect we might fail to create the socket
|
|
|
|
* eg if 'e' has AF_INET6 but ipv6 kmod is not loaded.
|
|
|
|
* Later iterations should always succeed if first iteration
|
|
|
|
* worked though, so treat that as fatal.
|
|
|
|
*/
|
|
|
|
if (p == port_min) {
|
2017-08-07 18:58:42 +08:00
|
|
|
continue;
|
|
|
|
} else {
|
2017-10-20 17:18:39 +08:00
|
|
|
error_setg_errno(errp, errno,
|
|
|
|
"Failed to recreate failed listening socket");
|
2017-08-07 18:58:42 +08:00
|
|
|
goto listen_failed;
|
2012-05-11 00:28:26 +08:00
|
|
|
}
|
2008-11-12 04:46:40 +08:00
|
|
|
}
|
2017-10-20 17:18:39 +08:00
|
|
|
socket_created = true;
|
|
|
|
|
|
|
|
rc = try_bind(slisten, saddr, e);
|
|
|
|
if (rc < 0) {
|
|
|
|
if (errno != EADDRINUSE) {
|
|
|
|
error_setg_errno(errp, errno, "Failed to bind socket");
|
|
|
|
goto listen_failed;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (!listen(slisten, 1)) {
|
|
|
|
goto listen_ok;
|
|
|
|
}
|
|
|
|
if (errno != EADDRINUSE) {
|
|
|
|
error_setg_errno(errp, errno, "Failed to listen on socket");
|
|
|
|
goto listen_failed;
|
|
|
|
}
|
2017-08-07 18:58:42 +08:00
|
|
|
}
|
|
|
|
/* Someone else managed to bind to the same port and beat us
|
|
|
|
* to listen on it! Socket semantics does not allow us to
|
|
|
|
* recover from this situation, so we need to recreate the
|
|
|
|
* socket to allow bind attempts for subsequent ports:
|
|
|
|
*/
|
|
|
|
closesocket(slisten);
|
2017-10-20 17:18:39 +08:00
|
|
|
slisten = -1;
|
2008-11-12 04:46:40 +08:00
|
|
|
}
|
2017-08-07 18:58:42 +08:00
|
|
|
}
|
|
|
|
error_setg_errno(errp, errno,
|
|
|
|
socket_created ?
|
|
|
|
"Failed to find an available port" :
|
|
|
|
"Failed to create a socket");
|
|
|
|
listen_failed:
|
|
|
|
saved_errno = errno;
|
|
|
|
if (slisten >= 0) {
|
2008-11-12 04:46:40 +08:00
|
|
|
closesocket(slisten);
|
|
|
|
}
|
|
|
|
freeaddrinfo(res);
|
2017-08-07 18:58:42 +08:00
|
|
|
errno = saved_errno;
|
2008-11-12 04:46:40 +08:00
|
|
|
return -1;
|
|
|
|
|
2017-08-07 18:58:42 +08:00
|
|
|
listen_ok:
|
2008-11-12 04:46:40 +08:00
|
|
|
freeaddrinfo(res);
|
|
|
|
return slisten;
|
|
|
|
}
|
|
|
|
|
2012-09-24 19:11:07 +08:00
|
|
|
#ifdef _WIN32
|
|
|
|
#define QEMU_SOCKET_RC_INPROGRESS(rc) \
|
|
|
|
((rc) == -EINPROGRESS || (rc) == -EWOULDBLOCK || (rc) == -WSAEALREADY)
|
|
|
|
#else
|
|
|
|
#define QEMU_SOCKET_RC_INPROGRESS(rc) \
|
|
|
|
((rc) == -EINPROGRESS)
|
|
|
|
#endif
|
|
|
|
|
2017-06-16 16:54:45 +08:00
|
|
|
static int inet_connect_addr(struct addrinfo *addr, Error **errp);
|
2012-09-24 19:11:09 +08:00
|
|
|
|
2017-06-16 16:54:45 +08:00
|
|
|
static int inet_connect_addr(struct addrinfo *addr, Error **errp)
|
2012-09-24 19:11:09 +08:00
|
|
|
{
|
|
|
|
int sock, rc;
|
|
|
|
|
2012-09-24 19:11:07 +08:00
|
|
|
sock = qemu_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
|
|
|
|
if (sock < 0) {
|
2014-09-25 14:49:31 +08:00
|
|
|
error_setg_errno(errp, errno, "Failed to create socket");
|
2012-09-24 19:11:07 +08:00
|
|
|
return -1;
|
|
|
|
}
|
2013-10-02 18:23:16 +08:00
|
|
|
socket_set_fast_reuse(sock);
|
2017-06-16 16:54:45 +08:00
|
|
|
|
2012-09-24 19:11:07 +08:00
|
|
|
/* connect to peer */
|
|
|
|
do {
|
|
|
|
rc = 0;
|
|
|
|
if (connect(sock, addr->ai_addr, addr->ai_addrlen) < 0) {
|
2016-03-08 04:36:03 +08:00
|
|
|
rc = -errno;
|
2012-09-24 19:11:07 +08:00
|
|
|
}
|
|
|
|
} while (rc == -EINTR);
|
|
|
|
|
2017-06-16 16:54:45 +08:00
|
|
|
if (rc < 0) {
|
2014-09-25 14:49:31 +08:00
|
|
|
error_setg_errno(errp, errno, "Failed to connect socket");
|
2012-09-24 19:11:07 +08:00
|
|
|
closesocket(sock);
|
|
|
|
return -1;
|
|
|
|
}
|
2017-06-16 16:54:45 +08:00
|
|
|
|
2012-09-24 19:11:07 +08:00
|
|
|
return sock;
|
|
|
|
}
|
|
|
|
|
2016-01-11 21:17:03 +08:00
|
|
|
static struct addrinfo *inet_parse_connect_saddr(InetSocketAddress *saddr,
|
|
|
|
Error **errp)
|
2012-09-24 19:11:07 +08:00
|
|
|
{
|
|
|
|
struct addrinfo ai, *res;
|
|
|
|
int rc;
|
2016-01-11 21:17:03 +08:00
|
|
|
Error *err = NULL;
|
2016-04-05 00:22:00 +08:00
|
|
|
static int useV4Mapped = 1;
|
2008-11-12 04:46:40 +08:00
|
|
|
|
2012-09-24 19:11:07 +08:00
|
|
|
memset(&ai, 0, sizeof(ai));
|
2012-09-24 19:11:09 +08:00
|
|
|
|
2016-04-05 00:22:00 +08:00
|
|
|
ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG;
|
|
|
|
if (atomic_read(&useV4Mapped)) {
|
|
|
|
ai.ai_flags |= AI_V4MAPPED;
|
|
|
|
}
|
2016-01-11 21:17:03 +08:00
|
|
|
ai.ai_family = inet_ai_family_from_address(saddr, &err);
|
2009-09-10 16:58:40 +08:00
|
|
|
ai.ai_socktype = SOCK_STREAM;
|
2008-11-12 04:46:40 +08:00
|
|
|
|
2016-01-11 21:17:03 +08:00
|
|
|
if (err) {
|
|
|
|
error_propagate(errp, err);
|
2012-09-24 19:11:07 +08:00
|
|
|
return NULL;
|
2008-11-12 04:46:40 +08:00
|
|
|
}
|
|
|
|
|
2016-01-11 21:17:03 +08:00
|
|
|
if (saddr->host == NULL || saddr->port == NULL) {
|
|
|
|
error_setg(errp, "host and/or port not specified");
|
|
|
|
return NULL;
|
2012-09-24 19:11:07 +08:00
|
|
|
}
|
2008-11-12 04:46:40 +08:00
|
|
|
|
|
|
|
/* lookup */
|
2016-01-11 21:17:03 +08:00
|
|
|
rc = getaddrinfo(saddr->host, saddr->port, &ai, &res);
|
2016-04-05 00:22:00 +08:00
|
|
|
|
|
|
|
/* At least FreeBSD and OS-X 10.6 declare AI_V4MAPPED but
|
|
|
|
* then don't implement it in their getaddrinfo(). Detect
|
|
|
|
* this and retry without the flag since that's preferrable
|
|
|
|
* to a fatal error
|
|
|
|
*/
|
|
|
|
if (rc == EAI_BADFLAGS &&
|
|
|
|
(ai.ai_flags & AI_V4MAPPED)) {
|
|
|
|
atomic_set(&useV4Mapped, 0);
|
|
|
|
ai.ai_flags &= ~AI_V4MAPPED;
|
|
|
|
rc = getaddrinfo(saddr->host, saddr->port, &ai, &res);
|
|
|
|
}
|
2012-09-24 19:11:07 +08:00
|
|
|
if (rc != 0) {
|
2016-01-11 21:17:03 +08:00
|
|
|
error_setg(errp, "address resolution failed for %s:%s: %s",
|
|
|
|
saddr->host, saddr->port, gai_strerror(rc));
|
2012-09-24 19:11:07 +08:00
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
2012-09-24 19:11:08 +08:00
|
|
|
/**
|
|
|
|
* Create a socket and connect it to an address.
|
|
|
|
*
|
2016-01-11 21:17:03 +08:00
|
|
|
* @saddr: Inet socket address specification
|
2012-09-24 19:11:08 +08:00
|
|
|
* @errp: set on error
|
|
|
|
*
|
|
|
|
* Returns: -1 on error, file descriptor on success.
|
|
|
|
*/
|
2017-06-16 16:54:45 +08:00
|
|
|
int inet_connect_saddr(InetSocketAddress *saddr, Error **errp)
|
2012-09-24 19:11:07 +08:00
|
|
|
{
|
2014-05-20 00:57:37 +08:00
|
|
|
Error *local_err = NULL;
|
2012-09-24 19:11:07 +08:00
|
|
|
struct addrinfo *res, *e;
|
|
|
|
int sock = -1;
|
|
|
|
|
2016-01-11 21:17:03 +08:00
|
|
|
res = inet_parse_connect_saddr(saddr, errp);
|
2012-09-24 19:11:07 +08:00
|
|
|
if (!res) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2008-11-12 04:46:40 +08:00
|
|
|
for (e = res; e != NULL; e = e->ai_next) {
|
2014-05-20 00:57:37 +08:00
|
|
|
error_free(local_err);
|
|
|
|
local_err = NULL;
|
2017-06-16 16:54:45 +08:00
|
|
|
sock = inet_connect_addr(e, &local_err);
|
2014-05-20 00:57:37 +08:00
|
|
|
if (sock >= 0) {
|
2012-09-24 19:11:07 +08:00
|
|
|
break;
|
2012-05-11 00:28:16 +08:00
|
|
|
}
|
2008-11-12 04:46:40 +08:00
|
|
|
}
|
2014-05-20 00:57:37 +08:00
|
|
|
|
|
|
|
if (sock < 0) {
|
|
|
|
error_propagate(errp, local_err);
|
|
|
|
}
|
2017-06-16 16:54:45 +08:00
|
|
|
|
2008-11-12 04:46:40 +08:00
|
|
|
freeaddrinfo(res);
|
2012-09-24 19:11:07 +08:00
|
|
|
return sock;
|
2008-11-12 04:46:40 +08:00
|
|
|
}
|
|
|
|
|
2016-01-11 21:17:04 +08:00
|
|
|
static int inet_dgram_saddr(InetSocketAddress *sraddr,
|
|
|
|
InetSocketAddress *sladdr,
|
|
|
|
Error **errp)
|
2009-09-10 16:58:51 +08:00
|
|
|
{
|
|
|
|
struct addrinfo ai, *peer = NULL, *local = NULL;
|
|
|
|
const char *addr;
|
|
|
|
const char *port;
|
|
|
|
int sock = -1, rc;
|
2016-01-11 21:17:04 +08:00
|
|
|
Error *err = NULL;
|
2009-09-10 16:58:51 +08:00
|
|
|
|
|
|
|
/* lookup peer addr */
|
|
|
|
memset(&ai,0, sizeof(ai));
|
2015-05-21 20:33:29 +08:00
|
|
|
ai.ai_flags = AI_CANONNAME | AI_V4MAPPED | AI_ADDRCONFIG;
|
2016-01-11 21:17:04 +08:00
|
|
|
ai.ai_family = inet_ai_family_from_address(sraddr, &err);
|
2009-09-10 16:58:51 +08:00
|
|
|
ai.ai_socktype = SOCK_DGRAM;
|
|
|
|
|
2016-01-11 21:17:04 +08:00
|
|
|
if (err) {
|
|
|
|
error_propagate(errp, err);
|
2016-01-22 19:28:33 +08:00
|
|
|
goto err;
|
2016-01-11 21:17:04 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
addr = sraddr->host;
|
|
|
|
port = sraddr->port;
|
2009-09-10 16:58:51 +08:00
|
|
|
if (addr == NULL || strlen(addr) == 0) {
|
|
|
|
addr = "localhost";
|
|
|
|
}
|
|
|
|
if (port == NULL || strlen(port) == 0) {
|
2012-10-02 15:25:14 +08:00
|
|
|
error_setg(errp, "remote port not specified");
|
2016-01-22 19:28:33 +08:00
|
|
|
goto err;
|
2009-09-10 16:58:51 +08:00
|
|
|
}
|
|
|
|
|
2016-07-28 18:50:04 +08:00
|
|
|
if ((rc = getaddrinfo(addr, port, &ai, &peer)) != 0) {
|
2012-10-02 15:25:14 +08:00
|
|
|
error_setg(errp, "address resolution failed for %s:%s: %s", addr, port,
|
|
|
|
gai_strerror(rc));
|
2016-07-28 16:54:33 +08:00
|
|
|
goto err;
|
2009-09-10 16:58:51 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/* lookup local addr */
|
|
|
|
memset(&ai,0, sizeof(ai));
|
|
|
|
ai.ai_flags = AI_PASSIVE;
|
|
|
|
ai.ai_family = peer->ai_family;
|
|
|
|
ai.ai_socktype = SOCK_DGRAM;
|
|
|
|
|
2016-01-11 21:17:04 +08:00
|
|
|
if (sladdr) {
|
|
|
|
addr = sladdr->host;
|
|
|
|
port = sladdr->port;
|
|
|
|
if (addr == NULL || strlen(addr) == 0) {
|
|
|
|
addr = NULL;
|
|
|
|
}
|
|
|
|
if (!port || strlen(port) == 0) {
|
|
|
|
port = "0";
|
|
|
|
}
|
|
|
|
} else {
|
2009-09-10 16:58:51 +08:00
|
|
|
addr = NULL;
|
|
|
|
port = "0";
|
2016-01-11 21:17:04 +08:00
|
|
|
}
|
2009-09-10 16:58:51 +08:00
|
|
|
|
2016-07-28 18:50:04 +08:00
|
|
|
if ((rc = getaddrinfo(addr, port, &ai, &local)) != 0) {
|
2012-10-02 15:25:14 +08:00
|
|
|
error_setg(errp, "address resolution failed for %s:%s: %s", addr, port,
|
|
|
|
gai_strerror(rc));
|
2012-09-01 15:40:26 +08:00
|
|
|
goto err;
|
2009-09-10 16:58:51 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/* create socket */
|
2009-12-02 19:24:42 +08:00
|
|
|
sock = qemu_socket(peer->ai_family, peer->ai_socktype, peer->ai_protocol);
|
2009-09-10 16:58:51 +08:00
|
|
|
if (sock < 0) {
|
2014-09-25 14:49:31 +08:00
|
|
|
error_setg_errno(errp, errno, "Failed to create socket");
|
2009-09-10 16:58:51 +08:00
|
|
|
goto err;
|
|
|
|
}
|
2013-10-02 18:23:16 +08:00
|
|
|
socket_set_fast_reuse(sock);
|
2009-09-10 16:58:51 +08:00
|
|
|
|
|
|
|
/* bind socket */
|
|
|
|
if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) {
|
2014-09-25 14:49:31 +08:00
|
|
|
error_setg_errno(errp, errno, "Failed to bind socket");
|
2009-09-10 16:58:51 +08:00
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* connect to peer */
|
|
|
|
if (connect(sock,peer->ai_addr,peer->ai_addrlen) < 0) {
|
2014-09-25 14:49:31 +08:00
|
|
|
error_setg_errno(errp, errno, "Failed to connect socket");
|
2009-09-10 16:58:51 +08:00
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
|
|
|
freeaddrinfo(local);
|
|
|
|
freeaddrinfo(peer);
|
|
|
|
return sock;
|
|
|
|
|
|
|
|
err:
|
2016-07-28 16:54:33 +08:00
|
|
|
if (sock != -1) {
|
2009-09-10 16:58:51 +08:00
|
|
|
closesocket(sock);
|
2016-07-28 16:54:33 +08:00
|
|
|
}
|
|
|
|
if (local) {
|
2009-09-10 16:58:51 +08:00
|
|
|
freeaddrinfo(local);
|
2016-07-28 16:54:33 +08:00
|
|
|
}
|
|
|
|
if (peer) {
|
2009-09-10 16:58:51 +08:00
|
|
|
freeaddrinfo(peer);
|
2016-07-28 16:54:33 +08:00
|
|
|
}
|
|
|
|
|
2009-09-10 16:58:51 +08:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2009-09-10 16:58:40 +08:00
|
|
|
/* compatibility wrapper */
|
2018-01-26 01:14:12 +08:00
|
|
|
static int inet_parse_flag(const char *flagname, const char *optstr, bool *val,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
char *end;
|
|
|
|
size_t len;
|
|
|
|
|
|
|
|
end = strstr(optstr, ",");
|
|
|
|
if (end) {
|
|
|
|
if (end[1] == ',') { /* Reject 'ipv6=on,,foo' */
|
|
|
|
error_setg(errp, "error parsing '%s' flag '%s'", flagname, optstr);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
len = end - optstr;
|
|
|
|
} else {
|
|
|
|
len = strlen(optstr);
|
|
|
|
}
|
|
|
|
if (len == 0 || (len == 3 && strncmp(optstr, "=on", len) == 0)) {
|
|
|
|
*val = true;
|
|
|
|
} else if (len == 4 && strncmp(optstr, "=off", len) == 0) {
|
|
|
|
*val = false;
|
|
|
|
} else {
|
|
|
|
error_setg(errp, "error parsing '%s' flag '%s'", flagname, optstr);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2017-04-26 15:36:37 +08:00
|
|
|
int inet_parse(InetSocketAddress *addr, const char *str, Error **errp)
|
2009-09-10 16:58:40 +08:00
|
|
|
{
|
|
|
|
const char *optstr, *h;
|
2015-01-31 03:37:55 +08:00
|
|
|
char host[65];
|
2009-09-10 16:58:40 +08:00
|
|
|
char port[33];
|
2012-09-19 19:51:46 +08:00
|
|
|
int to;
|
2009-09-10 16:58:40 +08:00
|
|
|
int pos;
|
2018-01-26 01:14:12 +08:00
|
|
|
char *begin;
|
2009-09-10 16:58:40 +08:00
|
|
|
|
2017-04-26 15:36:37 +08:00
|
|
|
memset(addr, 0, sizeof(*addr));
|
2012-09-19 19:51:46 +08:00
|
|
|
|
2009-09-10 16:58:40 +08:00
|
|
|
/* parse address */
|
|
|
|
if (str[0] == ':') {
|
|
|
|
/* no host given */
|
2012-09-19 19:51:46 +08:00
|
|
|
host[0] = '\0';
|
2016-07-28 18:50:04 +08:00
|
|
|
if (sscanf(str, ":%32[^,]%n", port, &pos) != 1) {
|
2012-09-19 19:22:21 +08:00
|
|
|
error_setg(errp, "error parsing port in address '%s'", str);
|
2017-04-26 15:36:37 +08:00
|
|
|
return -1;
|
2009-09-10 16:58:40 +08:00
|
|
|
}
|
|
|
|
} else if (str[0] == '[') {
|
|
|
|
/* IPv6 addr */
|
2016-07-28 18:50:04 +08:00
|
|
|
if (sscanf(str, "[%64[^]]]:%32[^,]%n", host, port, &pos) != 2) {
|
2012-09-19 19:22:21 +08:00
|
|
|
error_setg(errp, "error parsing IPv6 address '%s'", str);
|
2017-04-26 15:36:37 +08:00
|
|
|
return -1;
|
2009-09-10 16:58:40 +08:00
|
|
|
}
|
|
|
|
} else {
|
2013-06-03 23:54:55 +08:00
|
|
|
/* hostname or IPv4 addr */
|
2016-07-28 18:50:04 +08:00
|
|
|
if (sscanf(str, "%64[^:]:%32[^,]%n", host, port, &pos) != 2) {
|
2012-09-19 19:22:21 +08:00
|
|
|
error_setg(errp, "error parsing address '%s'", str);
|
2017-04-26 15:36:37 +08:00
|
|
|
return -1;
|
2009-09-10 16:58:40 +08:00
|
|
|
}
|
|
|
|
}
|
2012-09-19 19:51:46 +08:00
|
|
|
|
|
|
|
addr->host = g_strdup(host);
|
|
|
|
addr->port = g_strdup(port);
|
2009-09-10 16:58:40 +08:00
|
|
|
|
|
|
|
/* parse options */
|
|
|
|
optstr = str + pos;
|
|
|
|
h = strstr(optstr, ",to=");
|
2012-09-19 19:51:46 +08:00
|
|
|
if (h) {
|
2012-11-16 12:08:14 +08:00
|
|
|
h += 4;
|
|
|
|
if (sscanf(h, "%d%n", &to, &pos) != 1 ||
|
|
|
|
(h[pos] != '\0' && h[pos] != ',')) {
|
2012-09-19 19:51:46 +08:00
|
|
|
error_setg(errp, "error parsing to= argument");
|
2017-04-26 15:36:37 +08:00
|
|
|
return -1;
|
2012-09-19 19:51:46 +08:00
|
|
|
}
|
|
|
|
addr->has_to = true;
|
|
|
|
addr->to = to;
|
|
|
|
}
|
2018-01-26 01:14:12 +08:00
|
|
|
begin = strstr(optstr, ",ipv4");
|
|
|
|
if (begin) {
|
|
|
|
if (inet_parse_flag("ipv4", begin + 5, &addr->ipv4, errp) < 0) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
addr->has_ipv4 = true;
|
2012-09-19 19:51:46 +08:00
|
|
|
}
|
2018-01-26 01:14:12 +08:00
|
|
|
begin = strstr(optstr, ",ipv6");
|
|
|
|
if (begin) {
|
|
|
|
if (inet_parse_flag("ipv6", begin + 5, &addr->ipv6, errp) < 0) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
addr->has_ipv6 = true;
|
2012-09-19 19:51:46 +08:00
|
|
|
}
|
2017-04-26 15:36:37 +08:00
|
|
|
return 0;
|
2012-09-19 19:51:46 +08:00
|
|
|
}
|
|
|
|
|
2009-09-10 16:58:41 +08:00
|
|
|
|
2012-09-24 19:11:08 +08:00
|
|
|
/**
|
|
|
|
* Create a blocking socket and connect it to an address.
|
|
|
|
*
|
|
|
|
* @str: address string
|
|
|
|
* @errp: set in case of an error
|
|
|
|
*
|
|
|
|
* Returns -1 in case of error, file descriptor on success
|
|
|
|
**/
|
|
|
|
int inet_connect(const char *str, Error **errp)
|
2009-09-10 16:58:40 +08:00
|
|
|
{
|
|
|
|
int sock = -1;
|
2017-04-26 15:36:37 +08:00
|
|
|
InetSocketAddress *addr = g_new(InetSocketAddress, 1);
|
2009-09-10 16:58:40 +08:00
|
|
|
|
2017-04-26 15:36:37 +08:00
|
|
|
if (!inet_parse(addr, str, errp)) {
|
2017-06-16 16:54:45 +08:00
|
|
|
sock = inet_connect_saddr(addr, errp);
|
2012-09-24 19:11:08 +08:00
|
|
|
}
|
2017-04-26 15:36:37 +08:00
|
|
|
qapi_free_InetSocketAddress(addr);
|
2012-09-24 19:11:08 +08:00
|
|
|
return sock;
|
|
|
|
}
|
|
|
|
|
2016-10-14 17:00:55 +08:00
|
|
|
#ifdef CONFIG_AF_VSOCK
|
|
|
|
static bool vsock_parse_vaddr_to_sockaddr(const VsockSocketAddress *vaddr,
|
|
|
|
struct sockaddr_vm *svm,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
unsigned long long val;
|
|
|
|
|
|
|
|
memset(svm, 0, sizeof(*svm));
|
|
|
|
svm->svm_family = AF_VSOCK;
|
|
|
|
|
|
|
|
if (parse_uint_full(vaddr->cid, &val, 10) < 0 ||
|
|
|
|
val > UINT32_MAX) {
|
|
|
|
error_setg(errp, "Failed to parse cid '%s'", vaddr->cid);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
svm->svm_cid = val;
|
|
|
|
|
|
|
|
if (parse_uint_full(vaddr->port, &val, 10) < 0 ||
|
|
|
|
val > UINT32_MAX) {
|
|
|
|
error_setg(errp, "Failed to parse port '%s'", vaddr->port);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
svm->svm_port = val;
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2017-06-16 16:54:45 +08:00
|
|
|
static int vsock_connect_addr(const struct sockaddr_vm *svm, Error **errp)
|
2016-10-14 17:00:55 +08:00
|
|
|
{
|
|
|
|
int sock, rc;
|
|
|
|
|
|
|
|
sock = qemu_socket(AF_VSOCK, SOCK_STREAM, 0);
|
|
|
|
if (sock < 0) {
|
|
|
|
error_setg_errno(errp, errno, "Failed to create socket");
|
|
|
|
return -1;
|
|
|
|
}
|
2017-06-16 16:54:45 +08:00
|
|
|
|
2016-10-14 17:00:55 +08:00
|
|
|
/* connect to peer */
|
|
|
|
do {
|
|
|
|
rc = 0;
|
|
|
|
if (connect(sock, (const struct sockaddr *)svm, sizeof(*svm)) < 0) {
|
|
|
|
rc = -errno;
|
|
|
|
}
|
|
|
|
} while (rc == -EINTR);
|
|
|
|
|
2017-06-16 16:54:45 +08:00
|
|
|
if (rc < 0) {
|
2016-10-14 17:00:55 +08:00
|
|
|
error_setg_errno(errp, errno, "Failed to connect socket");
|
|
|
|
closesocket(sock);
|
|
|
|
return -1;
|
|
|
|
}
|
2017-06-16 16:54:45 +08:00
|
|
|
|
2016-10-14 17:00:55 +08:00
|
|
|
return sock;
|
|
|
|
}
|
|
|
|
|
2017-06-16 16:54:45 +08:00
|
|
|
static int vsock_connect_saddr(VsockSocketAddress *vaddr, Error **errp)
|
2016-10-14 17:00:55 +08:00
|
|
|
{
|
|
|
|
struct sockaddr_vm svm;
|
|
|
|
int sock = -1;
|
|
|
|
|
|
|
|
if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2017-06-16 16:54:45 +08:00
|
|
|
sock = vsock_connect_addr(&svm, errp);
|
2016-10-14 17:00:55 +08:00
|
|
|
|
|
|
|
return sock;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vsock_listen_saddr(VsockSocketAddress *vaddr,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
struct sockaddr_vm svm;
|
|
|
|
int slisten;
|
|
|
|
|
|
|
|
if (!vsock_parse_vaddr_to_sockaddr(vaddr, &svm, errp)) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
slisten = qemu_socket(AF_VSOCK, SOCK_STREAM, 0);
|
|
|
|
if (slisten < 0) {
|
|
|
|
error_setg_errno(errp, errno, "Failed to create socket");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (bind(slisten, (const struct sockaddr *)&svm, sizeof(svm)) != 0) {
|
|
|
|
error_setg_errno(errp, errno, "Failed to bind socket");
|
|
|
|
closesocket(slisten);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (listen(slisten, 1) != 0) {
|
|
|
|
error_setg_errno(errp, errno, "Failed to listen on socket");
|
|
|
|
closesocket(slisten);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
return slisten;
|
|
|
|
}
|
|
|
|
|
2017-04-26 15:36:36 +08:00
|
|
|
static int vsock_parse(VsockSocketAddress *addr, const char *str,
|
|
|
|
Error **errp)
|
2016-10-14 17:00:55 +08:00
|
|
|
{
|
|
|
|
char cid[33];
|
|
|
|
char port[33];
|
|
|
|
int n;
|
|
|
|
|
|
|
|
if (sscanf(str, "%32[^:]:%32[^,]%n", cid, port, &n) != 2) {
|
|
|
|
error_setg(errp, "error parsing address '%s'", str);
|
2017-04-26 15:36:36 +08:00
|
|
|
return -1;
|
2016-10-14 17:00:55 +08:00
|
|
|
}
|
|
|
|
if (str[n] != '\0') {
|
|
|
|
error_setg(errp, "trailing characters in address '%s'", str);
|
2017-04-26 15:36:36 +08:00
|
|
|
return -1;
|
2016-10-14 17:00:55 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
addr->cid = g_strdup(cid);
|
|
|
|
addr->port = g_strdup(port);
|
2017-04-26 15:36:36 +08:00
|
|
|
return 0;
|
2016-10-14 17:00:55 +08:00
|
|
|
}
|
|
|
|
#else
|
|
|
|
static void vsock_unsupported(Error **errp)
|
|
|
|
{
|
|
|
|
error_setg(errp, "socket family AF_VSOCK unsupported");
|
|
|
|
}
|
|
|
|
|
2017-06-16 16:54:45 +08:00
|
|
|
static int vsock_connect_saddr(VsockSocketAddress *vaddr, Error **errp)
|
2016-10-14 17:00:55 +08:00
|
|
|
{
|
|
|
|
vsock_unsupported(errp);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int vsock_listen_saddr(VsockSocketAddress *vaddr,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
vsock_unsupported(errp);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2017-04-26 15:36:36 +08:00
|
|
|
static int vsock_parse(VsockSocketAddress *addr, const char *str,
|
|
|
|
Error **errp)
|
2016-10-14 17:00:55 +08:00
|
|
|
{
|
|
|
|
vsock_unsupported(errp);
|
2017-04-26 15:36:36 +08:00
|
|
|
return -1;
|
2016-10-14 17:00:55 +08:00
|
|
|
}
|
|
|
|
#endif /* CONFIG_AF_VSOCK */
|
|
|
|
|
2008-11-12 04:46:40 +08:00
|
|
|
#ifndef _WIN32
|
|
|
|
|
2016-01-11 21:17:02 +08:00
|
|
|
static int unix_listen_saddr(UnixSocketAddress *saddr,
|
|
|
|
Error **errp)
|
2008-11-12 04:46:40 +08:00
|
|
|
{
|
|
|
|
struct sockaddr_un un;
|
2009-09-10 16:58:38 +08:00
|
|
|
int sock, fd;
|
2017-05-25 23:53:00 +08:00
|
|
|
char *pathbuf = NULL;
|
|
|
|
const char *path;
|
2008-11-12 04:46:40 +08:00
|
|
|
|
2009-12-02 19:24:42 +08:00
|
|
|
sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0);
|
2008-11-12 04:46:40 +08:00
|
|
|
if (sock < 0) {
|
2015-01-26 19:12:24 +08:00
|
|
|
error_setg_errno(errp, errno, "Failed to create Unix socket");
|
2009-05-06 17:57:03 +08:00
|
|
|
return -1;
|
2008-11-12 04:46:40 +08:00
|
|
|
}
|
|
|
|
|
2017-05-25 23:53:00 +08:00
|
|
|
if (saddr->path && saddr->path[0]) {
|
|
|
|
path = saddr->path;
|
2008-11-12 04:46:40 +08:00
|
|
|
} else {
|
2015-01-26 19:12:24 +08:00
|
|
|
const char *tmpdir = getenv("TMPDIR");
|
|
|
|
tmpdir = tmpdir ? tmpdir : "/tmp";
|
2017-05-25 23:53:00 +08:00
|
|
|
path = pathbuf = g_strdup_printf("%s/qemu-socket-XXXXXX", tmpdir);
|
|
|
|
}
|
2015-01-26 19:12:24 +08:00
|
|
|
|
2017-05-25 23:53:00 +08:00
|
|
|
if (strlen(path) > sizeof(un.sun_path)) {
|
|
|
|
error_setg(errp, "UNIX socket path '%s' is too long", path);
|
|
|
|
error_append_hint(errp, "Path must be less than %zu bytes\n",
|
|
|
|
sizeof(un.sun_path));
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (pathbuf != NULL) {
|
2008-11-12 04:46:40 +08:00
|
|
|
/*
|
|
|
|
* This dummy fd usage silences the mktemp() unsecure warning.
|
|
|
|
* Using mkstemp() doesn't make things more secure here
|
|
|
|
* though. bind() complains about existing files, so we have
|
|
|
|
* to unlink first and thus re-open the race window. The
|
|
|
|
* worst case possible is bind() failing, i.e. a DoS attack.
|
|
|
|
*/
|
2017-05-25 23:53:00 +08:00
|
|
|
fd = mkstemp(pathbuf);
|
2015-01-26 19:12:24 +08:00
|
|
|
if (fd < 0) {
|
|
|
|
error_setg_errno(errp, errno,
|
2017-05-25 23:53:00 +08:00
|
|
|
"Failed to make a temporary socket %s", pathbuf);
|
2015-01-26 19:12:24 +08:00
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
close(fd);
|
2008-11-12 04:46:40 +08:00
|
|
|
}
|
|
|
|
|
2017-05-25 23:53:00 +08:00
|
|
|
if (unlink(path) < 0 && errno != ENOENT) {
|
2015-05-05 23:07:19 +08:00
|
|
|
error_setg_errno(errp, errno,
|
2017-05-25 23:53:00 +08:00
|
|
|
"Failed to unlink socket %s", path);
|
2015-05-05 23:07:19 +08:00
|
|
|
goto err;
|
|
|
|
}
|
2017-05-25 23:53:00 +08:00
|
|
|
|
|
|
|
memset(&un, 0, sizeof(un));
|
|
|
|
un.sun_family = AF_UNIX;
|
|
|
|
strncpy(un.sun_path, path, sizeof(un.sun_path));
|
|
|
|
|
2008-11-12 04:46:40 +08:00
|
|
|
if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) {
|
2017-06-26 18:37:56 +08:00
|
|
|
error_setg_errno(errp, errno, "Failed to bind socket to %s", path);
|
2008-11-12 04:46:40 +08:00
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
if (listen(sock, 1) < 0) {
|
2014-09-25 14:49:31 +08:00
|
|
|
error_setg_errno(errp, errno, "Failed to listen on socket");
|
2008-11-12 04:46:40 +08:00
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
2017-12-12 19:12:19 +08:00
|
|
|
g_free(pathbuf);
|
2008-11-12 04:46:40 +08:00
|
|
|
return sock;
|
|
|
|
|
|
|
|
err:
|
2017-05-25 23:53:00 +08:00
|
|
|
g_free(pathbuf);
|
2008-11-12 04:46:40 +08:00
|
|
|
closesocket(sock);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2017-06-16 16:54:45 +08:00
|
|
|
static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp)
|
2008-11-12 04:46:40 +08:00
|
|
|
{
|
|
|
|
struct sockaddr_un un;
|
2012-10-03 19:37:46 +08:00
|
|
|
int sock, rc;
|
2008-11-12 04:46:40 +08:00
|
|
|
|
2016-01-11 21:17:03 +08:00
|
|
|
if (saddr->path == NULL) {
|
error: Strip trailing '\n' from error string arguments (again)
Commit 6daf194d and be62a2eb got rid of a bunch, but they keep coming
back. Tracked down with this Coccinelle semantic patch:
@r@
expression err, eno, cls, fmt;
position p;
@@
(
error_report(fmt, ...)@p
|
error_set(err, cls, fmt, ...)@p
|
error_set_errno(err, eno, cls, fmt, ...)@p
|
error_setg(err, fmt, ...)@p
|
error_setg_errno(err, eno, fmt, ...)@p
)
@script:python@
fmt << r.fmt;
p << r.p;
@@
if "\\n" in str(fmt):
print "%s:%s:%s:%s" % (p[0].file, p[0].line, p[0].column, fmt)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1360354939-10994-4-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-02-09 04:22:16 +08:00
|
|
|
error_setg(errp, "unix connect: no path specified");
|
2009-09-10 16:58:37 +08:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2009-12-02 19:24:42 +08:00
|
|
|
sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0);
|
2008-11-12 04:46:40 +08:00
|
|
|
if (sock < 0) {
|
2014-09-25 14:49:31 +08:00
|
|
|
error_setg_errno(errp, errno, "Failed to create socket");
|
2009-05-06 17:57:03 +08:00
|
|
|
return -1;
|
2008-11-12 04:46:40 +08:00
|
|
|
}
|
|
|
|
|
2017-05-25 23:53:00 +08:00
|
|
|
if (strlen(saddr->path) > sizeof(un.sun_path)) {
|
|
|
|
error_setg(errp, "UNIX socket path '%s' is too long", saddr->path);
|
|
|
|
error_append_hint(errp, "Path must be less than %zu bytes\n",
|
|
|
|
sizeof(un.sun_path));
|
|
|
|
goto err;
|
|
|
|
}
|
|
|
|
|
2008-11-12 04:46:40 +08:00
|
|
|
memset(&un, 0, sizeof(un));
|
|
|
|
un.sun_family = AF_UNIX;
|
2017-05-25 23:53:00 +08:00
|
|
|
strncpy(un.sun_path, saddr->path, sizeof(un.sun_path));
|
2012-10-03 19:37:46 +08:00
|
|
|
|
|
|
|
/* connect to peer */
|
|
|
|
do {
|
|
|
|
rc = 0;
|
|
|
|
if (connect(sock, (struct sockaddr *) &un, sizeof(un)) < 0) {
|
2016-03-08 04:36:03 +08:00
|
|
|
rc = -errno;
|
2012-10-03 19:37:46 +08:00
|
|
|
}
|
|
|
|
} while (rc == -EINTR);
|
|
|
|
|
|
|
|
if (rc < 0) {
|
2017-05-25 23:53:00 +08:00
|
|
|
error_setg_errno(errp, -rc, "Failed to connect socket %s",
|
|
|
|
saddr->path);
|
|
|
|
goto err;
|
2008-11-12 04:46:40 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return sock;
|
2017-05-25 23:53:00 +08:00
|
|
|
|
|
|
|
err:
|
|
|
|
close(sock);
|
|
|
|
return -1;
|
2008-11-12 04:46:40 +08:00
|
|
|
}
|
|
|
|
|
2012-10-18 14:44:00 +08:00
|
|
|
#else
|
|
|
|
|
2016-01-11 21:17:02 +08:00
|
|
|
static int unix_listen_saddr(UnixSocketAddress *saddr,
|
|
|
|
Error **errp)
|
2012-10-18 14:44:00 +08:00
|
|
|
{
|
2012-09-19 19:54:39 +08:00
|
|
|
error_setg(errp, "unix sockets are not available on windows");
|
2012-10-18 14:44:00 +08:00
|
|
|
errno = ENOTSUP;
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2017-06-16 16:54:45 +08:00
|
|
|
static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp)
|
2012-10-18 14:44:00 +08:00
|
|
|
{
|
2012-09-19 19:54:39 +08:00
|
|
|
error_setg(errp, "unix sockets are not available on windows");
|
2012-10-18 14:44:00 +08:00
|
|
|
errno = ENOTSUP;
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2009-09-10 16:58:37 +08:00
|
|
|
/* compatibility wrapper */
|
2017-12-12 19:12:19 +08:00
|
|
|
int unix_listen(const char *str, Error **errp)
|
2009-09-10 16:58:38 +08:00
|
|
|
{
|
|
|
|
char *path, *optstr;
|
|
|
|
int sock, len;
|
2016-01-11 21:17:02 +08:00
|
|
|
UnixSocketAddress *saddr;
|
2009-09-10 16:58:38 +08:00
|
|
|
|
2016-01-11 21:17:02 +08:00
|
|
|
saddr = g_new0(UnixSocketAddress, 1);
|
2009-09-10 16:58:38 +08:00
|
|
|
|
|
|
|
optstr = strchr(str, ',');
|
|
|
|
if (optstr) {
|
|
|
|
len = optstr - str;
|
|
|
|
if (len) {
|
2011-08-21 11:09:37 +08:00
|
|
|
path = g_malloc(len+1);
|
2009-09-10 16:58:38 +08:00
|
|
|
snprintf(path, len+1, "%.*s", len, str);
|
2016-01-11 21:17:02 +08:00
|
|
|
saddr->path = path;
|
2009-09-10 16:58:38 +08:00
|
|
|
}
|
|
|
|
} else {
|
2016-01-11 21:17:02 +08:00
|
|
|
saddr->path = g_strdup(str);
|
2009-09-10 16:58:38 +08:00
|
|
|
}
|
|
|
|
|
2017-12-12 19:12:19 +08:00
|
|
|
sock = unix_listen_saddr(saddr, errp);
|
2016-07-28 16:54:33 +08:00
|
|
|
|
2016-01-11 21:17:02 +08:00
|
|
|
qapi_free_UnixSocketAddress(saddr);
|
2009-09-10 16:58:38 +08:00
|
|
|
return sock;
|
|
|
|
}
|
|
|
|
|
2012-10-02 15:35:32 +08:00
|
|
|
int unix_connect(const char *path, Error **errp)
|
2009-09-10 16:58:37 +08:00
|
|
|
{
|
2016-01-11 21:17:03 +08:00
|
|
|
UnixSocketAddress *saddr;
|
2009-09-10 16:58:37 +08:00
|
|
|
int sock;
|
|
|
|
|
2016-01-11 21:17:03 +08:00
|
|
|
saddr = g_new0(UnixSocketAddress, 1);
|
|
|
|
saddr->path = g_strdup(path);
|
2017-06-16 16:54:45 +08:00
|
|
|
sock = unix_connect_saddr(saddr, errp);
|
2016-01-11 21:17:03 +08:00
|
|
|
qapi_free_UnixSocketAddress(saddr);
|
2012-10-03 19:37:46 +08:00
|
|
|
return sock;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
SocketAddress *socket_parse(const char *str, Error **errp)
|
2012-10-24 03:31:53 +08:00
|
|
|
{
|
2017-04-26 15:36:41 +08:00
|
|
|
SocketAddress *addr;
|
2012-10-24 03:31:53 +08:00
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
addr = g_new0(SocketAddress, 1);
|
2012-10-24 03:31:53 +08:00
|
|
|
if (strstart(str, "unix:", NULL)) {
|
|
|
|
if (str[5] == '\0') {
|
error: Strip trailing '\n' from error string arguments (again)
Commit 6daf194d and be62a2eb got rid of a bunch, but they keep coming
back. Tracked down with this Coccinelle semantic patch:
@r@
expression err, eno, cls, fmt;
position p;
@@
(
error_report(fmt, ...)@p
|
error_set(err, cls, fmt, ...)@p
|
error_set_errno(err, eno, cls, fmt, ...)@p
|
error_setg(err, fmt, ...)@p
|
error_setg_errno(err, eno, fmt, ...)@p
)
@script:python@
fmt << r.fmt;
p << r.p;
@@
if "\\n" in str(fmt):
print "%s:%s:%s:%s" % (p[0].file, p[0].line, p[0].column, fmt)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1360354939-10994-4-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-02-09 04:22:16 +08:00
|
|
|
error_setg(errp, "invalid Unix socket address");
|
2012-10-24 03:31:53 +08:00
|
|
|
goto fail;
|
|
|
|
} else {
|
2017-04-26 15:36:41 +08:00
|
|
|
addr->type = SOCKET_ADDRESS_TYPE_UNIX;
|
|
|
|
addr->u.q_unix.path = g_strdup(str + 5);
|
2012-10-24 03:31:53 +08:00
|
|
|
}
|
|
|
|
} else if (strstart(str, "fd:", NULL)) {
|
|
|
|
if (str[3] == '\0') {
|
error: Strip trailing '\n' from error string arguments (again)
Commit 6daf194d and be62a2eb got rid of a bunch, but they keep coming
back. Tracked down with this Coccinelle semantic patch:
@r@
expression err, eno, cls, fmt;
position p;
@@
(
error_report(fmt, ...)@p
|
error_set(err, cls, fmt, ...)@p
|
error_set_errno(err, eno, cls, fmt, ...)@p
|
error_setg(err, fmt, ...)@p
|
error_setg_errno(err, eno, fmt, ...)@p
)
@script:python@
fmt << r.fmt;
p << r.p;
@@
if "\\n" in str(fmt):
print "%s:%s:%s:%s" % (p[0].file, p[0].line, p[0].column, fmt)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1360354939-10994-4-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-02-09 04:22:16 +08:00
|
|
|
error_setg(errp, "invalid file descriptor address");
|
2012-10-24 03:31:53 +08:00
|
|
|
goto fail;
|
|
|
|
} else {
|
2017-04-26 15:36:41 +08:00
|
|
|
addr->type = SOCKET_ADDRESS_TYPE_FD;
|
|
|
|
addr->u.fd.str = g_strdup(str + 3);
|
2012-10-24 03:31:53 +08:00
|
|
|
}
|
2016-10-14 17:00:55 +08:00
|
|
|
} else if (strstart(str, "vsock:", NULL)) {
|
2017-04-26 15:36:41 +08:00
|
|
|
addr->type = SOCKET_ADDRESS_TYPE_VSOCK;
|
|
|
|
if (vsock_parse(&addr->u.vsock, str + strlen("vsock:"), errp)) {
|
2016-10-14 17:00:55 +08:00
|
|
|
goto fail;
|
|
|
|
}
|
2012-10-24 03:31:53 +08:00
|
|
|
} else {
|
2017-04-26 15:36:41 +08:00
|
|
|
addr->type = SOCKET_ADDRESS_TYPE_INET;
|
|
|
|
if (inet_parse(&addr->u.inet, str, errp)) {
|
2012-10-24 03:31:53 +08:00
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return addr;
|
|
|
|
|
|
|
|
fail:
|
2017-04-26 15:36:41 +08:00
|
|
|
qapi_free_SocketAddress(addr);
|
2012-10-24 03:31:53 +08:00
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2017-06-16 16:54:45 +08:00
|
|
|
int socket_connect(SocketAddress *addr, Error **errp)
|
2012-10-24 03:31:53 +08:00
|
|
|
{
|
|
|
|
int fd;
|
|
|
|
|
2015-10-27 06:34:55 +08:00
|
|
|
switch (addr->type) {
|
2017-04-26 15:36:41 +08:00
|
|
|
case SOCKET_ADDRESS_TYPE_INET:
|
2017-06-16 16:54:45 +08:00
|
|
|
fd = inet_connect_saddr(&addr->u.inet, errp);
|
2012-10-24 03:31:53 +08:00
|
|
|
break;
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
case SOCKET_ADDRESS_TYPE_UNIX:
|
2017-06-16 16:54:45 +08:00
|
|
|
fd = unix_connect_saddr(&addr->u.q_unix, errp);
|
2012-10-24 03:31:53 +08:00
|
|
|
break;
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
case SOCKET_ADDRESS_TYPE_FD:
|
|
|
|
fd = monitor_get_fd(cur_mon, addr->u.fd.str, errp);
|
2012-10-24 03:31:53 +08:00
|
|
|
break;
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
case SOCKET_ADDRESS_TYPE_VSOCK:
|
2017-06-16 16:54:45 +08:00
|
|
|
fd = vsock_connect_saddr(&addr->u.vsock, errp);
|
2016-10-14 17:00:55 +08:00
|
|
|
break;
|
|
|
|
|
2012-10-24 03:31:53 +08:00
|
|
|
default:
|
|
|
|
abort();
|
|
|
|
}
|
|
|
|
return fd;
|
|
|
|
}
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
int socket_listen(SocketAddress *addr, Error **errp)
|
2012-10-24 03:31:53 +08:00
|
|
|
{
|
|
|
|
int fd;
|
|
|
|
|
2015-10-27 06:34:55 +08:00
|
|
|
switch (addr->type) {
|
2017-04-26 15:36:41 +08:00
|
|
|
case SOCKET_ADDRESS_TYPE_INET:
|
2017-12-12 19:12:19 +08:00
|
|
|
fd = inet_listen_saddr(&addr->u.inet, 0, errp);
|
2012-10-24 03:31:53 +08:00
|
|
|
break;
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
case SOCKET_ADDRESS_TYPE_UNIX:
|
2017-12-12 19:12:19 +08:00
|
|
|
fd = unix_listen_saddr(&addr->u.q_unix, errp);
|
2012-10-24 03:31:53 +08:00
|
|
|
break;
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
case SOCKET_ADDRESS_TYPE_FD:
|
|
|
|
fd = monitor_get_fd(cur_mon, addr->u.fd.str, errp);
|
2012-10-24 03:31:53 +08:00
|
|
|
break;
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
case SOCKET_ADDRESS_TYPE_VSOCK:
|
|
|
|
fd = vsock_listen_saddr(&addr->u.vsock, errp);
|
2016-10-14 17:00:55 +08:00
|
|
|
break;
|
|
|
|
|
2012-10-24 03:31:53 +08:00
|
|
|
default:
|
|
|
|
abort();
|
|
|
|
}
|
|
|
|
return fd;
|
|
|
|
}
|
|
|
|
|
2016-06-17 03:28:52 +08:00
|
|
|
void socket_listen_cleanup(int fd, Error **errp)
|
|
|
|
{
|
2017-04-26 15:36:41 +08:00
|
|
|
SocketAddress *addr;
|
2016-06-17 03:28:52 +08:00
|
|
|
|
|
|
|
addr = socket_local_address(fd, errp);
|
2017-10-27 15:51:59 +08:00
|
|
|
if (!addr) {
|
|
|
|
return;
|
|
|
|
}
|
2016-06-17 03:28:52 +08:00
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
if (addr->type == SOCKET_ADDRESS_TYPE_UNIX
|
|
|
|
&& addr->u.q_unix.path) {
|
|
|
|
if (unlink(addr->u.q_unix.path) < 0 && errno != ENOENT) {
|
2016-06-17 03:28:52 +08:00
|
|
|
error_setg_errno(errp, errno,
|
|
|
|
"Failed to unlink socket %s",
|
2017-04-26 15:36:41 +08:00
|
|
|
addr->u.q_unix.path);
|
2016-06-17 03:28:52 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
qapi_free_SocketAddress(addr);
|
2016-06-17 03:28:52 +08:00
|
|
|
}
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp)
|
2013-02-27 21:10:47 +08:00
|
|
|
{
|
|
|
|
int fd;
|
|
|
|
|
2017-03-31 01:43:09 +08:00
|
|
|
/*
|
2017-04-26 15:36:41 +08:00
|
|
|
* TODO SOCKET_ADDRESS_TYPE_FD when fd is AF_INET or AF_INET6
|
2017-03-31 01:43:09 +08:00
|
|
|
* (although other address families can do SOCK_DGRAM, too)
|
|
|
|
*/
|
2015-10-27 06:34:55 +08:00
|
|
|
switch (remote->type) {
|
2017-04-26 15:36:41 +08:00
|
|
|
case SOCKET_ADDRESS_TYPE_INET:
|
|
|
|
fd = inet_dgram_saddr(&remote->u.inet,
|
|
|
|
local ? &local->u.inet : NULL, errp);
|
2013-02-27 21:10:47 +08:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
error_setg(errp, "socket type unsupported for datagram");
|
2013-06-24 14:39:56 +08:00
|
|
|
fd = -1;
|
2013-02-27 21:10:47 +08:00
|
|
|
}
|
|
|
|
return fd;
|
|
|
|
}
|
2015-05-02 00:36:20 +08:00
|
|
|
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
static SocketAddress *
|
2015-05-02 00:36:20 +08:00
|
|
|
socket_sockaddr_to_address_inet(struct sockaddr_storage *sa,
|
|
|
|
socklen_t salen,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
char host[NI_MAXHOST];
|
|
|
|
char serv[NI_MAXSERV];
|
2017-04-26 15:36:41 +08:00
|
|
|
SocketAddress *addr;
|
2016-03-04 00:16:48 +08:00
|
|
|
InetSocketAddress *inet;
|
2015-05-02 00:36:20 +08:00
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = getnameinfo((struct sockaddr *)sa, salen,
|
|
|
|
host, sizeof(host),
|
|
|
|
serv, sizeof(serv),
|
|
|
|
NI_NUMERICHOST | NI_NUMERICSERV);
|
|
|
|
if (ret != 0) {
|
|
|
|
error_setg(errp, "Cannot format numeric socket address: %s",
|
|
|
|
gai_strerror(ret));
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
addr = g_new0(SocketAddress, 1);
|
|
|
|
addr->type = SOCKET_ADDRESS_TYPE_INET;
|
|
|
|
inet = &addr->u.inet;
|
2016-03-04 00:16:48 +08:00
|
|
|
inet->host = g_strdup(host);
|
|
|
|
inet->port = g_strdup(serv);
|
2015-05-02 00:36:20 +08:00
|
|
|
if (sa->ss_family == AF_INET) {
|
2016-03-04 00:16:48 +08:00
|
|
|
inet->has_ipv4 = inet->ipv4 = true;
|
2015-05-02 00:36:20 +08:00
|
|
|
} else {
|
2016-03-04 00:16:48 +08:00
|
|
|
inet->has_ipv6 = inet->ipv6 = true;
|
2015-05-02 00:36:20 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return addr;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#ifndef WIN32
|
2017-04-26 15:36:41 +08:00
|
|
|
static SocketAddress *
|
2015-05-02 00:36:20 +08:00
|
|
|
socket_sockaddr_to_address_unix(struct sockaddr_storage *sa,
|
|
|
|
socklen_t salen,
|
|
|
|
Error **errp)
|
|
|
|
{
|
2017-04-26 15:36:41 +08:00
|
|
|
SocketAddress *addr;
|
2015-05-02 00:36:20 +08:00
|
|
|
struct sockaddr_un *su = (struct sockaddr_un *)sa;
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
addr = g_new0(SocketAddress, 1);
|
|
|
|
addr->type = SOCKET_ADDRESS_TYPE_UNIX;
|
2015-05-02 00:36:20 +08:00
|
|
|
if (su->sun_path[0]) {
|
2017-04-26 15:36:41 +08:00
|
|
|
addr->u.q_unix.path = g_strndup(su->sun_path, sizeof(su->sun_path));
|
2015-05-02 00:36:20 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return addr;
|
|
|
|
}
|
|
|
|
#endif /* WIN32 */
|
|
|
|
|
2016-10-14 17:00:55 +08:00
|
|
|
#ifdef CONFIG_AF_VSOCK
|
2017-04-26 15:36:41 +08:00
|
|
|
static SocketAddress *
|
2016-10-14 17:00:55 +08:00
|
|
|
socket_sockaddr_to_address_vsock(struct sockaddr_storage *sa,
|
|
|
|
socklen_t salen,
|
|
|
|
Error **errp)
|
|
|
|
{
|
2017-04-26 15:36:41 +08:00
|
|
|
SocketAddress *addr;
|
2016-10-14 17:00:55 +08:00
|
|
|
VsockSocketAddress *vaddr;
|
|
|
|
struct sockaddr_vm *svm = (struct sockaddr_vm *)sa;
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
addr = g_new0(SocketAddress, 1);
|
|
|
|
addr->type = SOCKET_ADDRESS_TYPE_VSOCK;
|
|
|
|
vaddr = &addr->u.vsock;
|
2016-10-14 17:00:55 +08:00
|
|
|
vaddr->cid = g_strdup_printf("%u", svm->svm_cid);
|
|
|
|
vaddr->port = g_strdup_printf("%u", svm->svm_port);
|
|
|
|
|
|
|
|
return addr;
|
|
|
|
}
|
|
|
|
#endif /* CONFIG_AF_VSOCK */
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
SocketAddress *
|
2015-05-02 00:36:20 +08:00
|
|
|
socket_sockaddr_to_address(struct sockaddr_storage *sa,
|
|
|
|
socklen_t salen,
|
|
|
|
Error **errp)
|
|
|
|
{
|
|
|
|
switch (sa->ss_family) {
|
|
|
|
case AF_INET:
|
|
|
|
case AF_INET6:
|
|
|
|
return socket_sockaddr_to_address_inet(sa, salen, errp);
|
|
|
|
|
|
|
|
#ifndef WIN32
|
|
|
|
case AF_UNIX:
|
|
|
|
return socket_sockaddr_to_address_unix(sa, salen, errp);
|
|
|
|
#endif /* WIN32 */
|
|
|
|
|
2016-10-14 17:00:55 +08:00
|
|
|
#ifdef CONFIG_AF_VSOCK
|
|
|
|
case AF_VSOCK:
|
|
|
|
return socket_sockaddr_to_address_vsock(sa, salen, errp);
|
|
|
|
#endif
|
|
|
|
|
2015-05-02 00:36:20 +08:00
|
|
|
default:
|
|
|
|
error_setg(errp, "socket family %d unsupported",
|
|
|
|
sa->ss_family);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
SocketAddress *socket_local_address(int fd, Error **errp)
|
2015-05-02 00:36:20 +08:00
|
|
|
{
|
|
|
|
struct sockaddr_storage ss;
|
|
|
|
socklen_t sslen = sizeof(ss);
|
|
|
|
|
|
|
|
if (getsockname(fd, (struct sockaddr *)&ss, &sslen) < 0) {
|
2016-03-08 04:36:03 +08:00
|
|
|
error_setg_errno(errp, errno, "%s",
|
2015-05-02 00:36:20 +08:00
|
|
|
"Unable to query local socket address");
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return socket_sockaddr_to_address(&ss, sslen, errp);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
SocketAddress *socket_remote_address(int fd, Error **errp)
|
2015-05-02 00:36:20 +08:00
|
|
|
{
|
|
|
|
struct sockaddr_storage ss;
|
|
|
|
socklen_t sslen = sizeof(ss);
|
|
|
|
|
|
|
|
if (getpeername(fd, (struct sockaddr *)&ss, &sslen) < 0) {
|
2016-03-08 04:36:03 +08:00
|
|
|
error_setg_errno(errp, errno, "%s",
|
2015-05-02 00:36:20 +08:00
|
|
|
"Unable to query remote socket address");
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return socket_sockaddr_to_address(&ss, sslen, errp);
|
|
|
|
}
|
2015-08-15 01:18:41 +08:00
|
|
|
|
2017-03-31 01:43:15 +08:00
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
SocketAddress *socket_address_flatten(SocketAddressLegacy *addr_legacy)
|
|
|
|
{
|
2017-05-16 00:39:04 +08:00
|
|
|
SocketAddress *addr;
|
2017-04-26 15:36:41 +08:00
|
|
|
|
|
|
|
if (!addr_legacy) {
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2017-05-16 00:39:04 +08:00
|
|
|
addr = g_new(SocketAddress, 1);
|
|
|
|
|
2017-04-26 15:36:41 +08:00
|
|
|
switch (addr_legacy->type) {
|
|
|
|
case SOCKET_ADDRESS_LEGACY_KIND_INET:
|
|
|
|
addr->type = SOCKET_ADDRESS_TYPE_INET;
|
|
|
|
QAPI_CLONE_MEMBERS(InetSocketAddress, &addr->u.inet,
|
|
|
|
addr_legacy->u.inet.data);
|
|
|
|
break;
|
|
|
|
case SOCKET_ADDRESS_LEGACY_KIND_UNIX:
|
|
|
|
addr->type = SOCKET_ADDRESS_TYPE_UNIX;
|
|
|
|
QAPI_CLONE_MEMBERS(UnixSocketAddress, &addr->u.q_unix,
|
|
|
|
addr_legacy->u.q_unix.data);
|
|
|
|
break;
|
|
|
|
case SOCKET_ADDRESS_LEGACY_KIND_VSOCK:
|
|
|
|
addr->type = SOCKET_ADDRESS_TYPE_VSOCK;
|
|
|
|
QAPI_CLONE_MEMBERS(VsockSocketAddress, &addr->u.vsock,
|
|
|
|
addr_legacy->u.vsock.data);
|
|
|
|
break;
|
|
|
|
case SOCKET_ADDRESS_LEGACY_KIND_FD:
|
|
|
|
addr->type = SOCKET_ADDRESS_TYPE_FD;
|
|
|
|
QAPI_CLONE_MEMBERS(String, &addr->u.fd, addr_legacy->u.fd.data);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
abort();
|
|
|
|
}
|
|
|
|
|
|
|
|
return addr;
|
|
|
|
}
|