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-rw-r--r--qemu/util/qemu-sockets.c1153
1 files changed, 0 insertions, 1153 deletions
diff --git a/qemu/util/qemu-sockets.c b/qemu/util/qemu-sockets.c
deleted file mode 100644
index 0d536911c..000000000
--- a/qemu/util/qemu-sockets.c
+++ /dev/null
@@ -1,1153 +0,0 @@
-/*
- * 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.
- *
- * Contributions after 2012-01-13 are licensed under the terms of the
- * GNU GPL, version 2 or (at your option) any later version.
- */
-#include "qemu/osdep.h"
-
-#include "monitor/monitor.h"
-#include "qapi/error.h"
-#include "qemu/sockets.h"
-#include "qemu/main-loop.h"
-#include "qapi/qmp-input-visitor.h"
-#include "qapi/qmp-output-visitor.h"
-#include "qapi-visit.h"
-#include "qemu/cutils.h"
-
-#ifndef AI_ADDRCONFIG
-# define AI_ADDRCONFIG 0
-#endif
-
-#ifndef AI_V4MAPPED
-# define AI_V4MAPPED 0
-#endif
-
-
-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;
- }
-}
-
-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;
- }
- return NETWORK_ADDRESS_FAMILY_UNKNOWN;
-}
-
-/*
- * 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
- * t t PF_INET6
- *
- * NB, this matrix is only about getting the neccessary results
- * from getaddrinfo(). Some of the cases require further work
- * after reading results from getaddrinfo in order to fully
- * apply the logic the end user wants. eg with the last case
- * ipv4=t + ipv6=t + PF_INET6, getaddrinfo alone can only
- * guarantee the ipv6=t part of the request - we need more
- * checks to provide ipv4=t part of the guarantee. This is
- * outside scope of this method and not currently handled by
- * callers at all.
- */
-static int inet_ai_family_from_address(InetSocketAddress *addr,
- Error **errp)
-{
- 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;
- }
- 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;
-}
-
-static int inet_listen_saddr(InetSocketAddress *saddr,
- int port_offset,
- bool update_addr,
- Error **errp)
-{
- struct addrinfo ai,*res,*e;
- char port[33];
- char uaddr[INET6_ADDRSTRLEN+1];
- char uport[33];
- int slisten, rc, port_min, port_max, p;
- Error *err = NULL;
-
- memset(&ai,0, sizeof(ai));
- ai.ai_flags = AI_PASSIVE;
- ai.ai_family = inet_ai_family_from_address(saddr, &err);
- ai.ai_socktype = SOCK_STREAM;
-
- if (err) {
- error_propagate(errp, err);
- return -1;
- }
-
- if (saddr->host == NULL) {
- error_setg(errp, "host not specified");
- return -1;
- }
- if (saddr->port != NULL) {
- pstrcpy(port, sizeof(port), saddr->port);
- } else {
- port[0] = '\0';
- }
-
- /* lookup */
- if (port_offset) {
- unsigned long long baseport;
- if (strlen(port) == 0) {
- error_setg(errp, "port not specified");
- return -1;
- }
- 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);
- }
- rc = getaddrinfo(strlen(saddr->host) ? saddr->host : NULL,
- strlen(port) ? port : NULL, &ai, &res);
- if (rc != 0) {
- error_setg(errp, "address resolution failed for %s:%s: %s",
- saddr->host, port, gai_strerror(rc));
- return -1;
- }
-
- /* create socket + bind */
- for (e = res; e != NULL; e = e->ai_next) {
- getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen,
- uaddr,INET6_ADDRSTRLEN,uport,32,
- NI_NUMERICHOST | NI_NUMERICSERV);
- slisten = qemu_socket(e->ai_family, e->ai_socktype, e->ai_protocol);
- if (slisten < 0) {
- if (!e->ai_next) {
- error_setg_errno(errp, errno, "Failed to create socket");
- }
- continue;
- }
-
- socket_set_fast_reuse(slisten);
-#ifdef IPV6_V6ONLY
- if (e->ai_family == PF_INET6) {
- /* listen on both ipv4 and ipv6 */
- const int off = 0;
- qemu_setsockopt(slisten, IPPROTO_IPV6, IPV6_V6ONLY, &off,
- sizeof(off));
- }
-#endif
-
- port_min = inet_getport(e);
- port_max = saddr->has_to ? saddr->to + port_offset : port_min;
- for (p = port_min; p <= port_max; p++) {
- inet_setport(e, p);
- if (bind(slisten, e->ai_addr, e->ai_addrlen) == 0) {
- goto listen;
- }
- if (p == port_max) {
- if (!e->ai_next) {
- error_setg_errno(errp, errno, "Failed to bind socket");
- }
- }
- }
- closesocket(slisten);
- }
- freeaddrinfo(res);
- return -1;
-
-listen:
- if (listen(slisten,1) != 0) {
- error_setg_errno(errp, errno, "Failed to listen on socket");
- closesocket(slisten);
- freeaddrinfo(res);
- return -1;
- }
- if (update_addr) {
- g_free(saddr->host);
- saddr->host = g_strdup(uaddr);
- g_free(saddr->port);
- saddr->port = g_strdup_printf("%d",
- inet_getport(e) - port_offset);
- saddr->has_ipv6 = saddr->ipv6 = e->ai_family == PF_INET6;
- saddr->has_ipv4 = saddr->ipv4 = e->ai_family != PF_INET6;
- }
- freeaddrinfo(res);
- return slisten;
-}
-
-#ifdef _WIN32
-#define QEMU_SOCKET_RC_INPROGRESS(rc) \
- ((rc) == -EINPROGRESS || (rc) == -EWOULDBLOCK || (rc) == -WSAEALREADY)
-#else
-#define QEMU_SOCKET_RC_INPROGRESS(rc) \
- ((rc) == -EINPROGRESS)
-#endif
-
-/* Struct to store connect state for non blocking connect */
-typedef struct ConnectState {
- int fd;
- struct addrinfo *addr_list;
- struct addrinfo *current_addr;
- NonBlockingConnectHandler *callback;
- void *opaque;
-} ConnectState;
-
-static int inet_connect_addr(struct addrinfo *addr, bool *in_progress,
- ConnectState *connect_state, Error **errp);
-
-static void wait_for_connect(void *opaque)
-{
- ConnectState *s = opaque;
- int val = 0, rc = 0;
- socklen_t valsize = sizeof(val);
- bool in_progress;
- Error *err = NULL;
-
- qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
-
- do {
- rc = qemu_getsockopt(s->fd, SOL_SOCKET, SO_ERROR, &val, &valsize);
- } while (rc == -1 && errno == EINTR);
-
- /* update rc to contain error */
- if (!rc && val) {
- rc = -1;
- errno = val;
- }
-
- /* connect error */
- if (rc < 0) {
- error_setg_errno(&err, errno, "Error connecting to socket");
- closesocket(s->fd);
- s->fd = rc;
- }
-
- /* try to connect to the next address on the list */
- if (s->current_addr) {
- while (s->current_addr->ai_next != NULL && s->fd < 0) {
- s->current_addr = s->current_addr->ai_next;
- s->fd = inet_connect_addr(s->current_addr, &in_progress, s, NULL);
- if (s->fd < 0) {
- error_free(err);
- err = NULL;
- error_setg_errno(&err, errno, "Unable to start socket connect");
- }
- /* connect in progress */
- if (in_progress) {
- goto out;
- }
- }
-
- freeaddrinfo(s->addr_list);
- }
-
- if (s->callback) {
- s->callback(s->fd, err, s->opaque);
- }
- g_free(s);
-out:
- error_free(err);
-}
-
-static int inet_connect_addr(struct addrinfo *addr, bool *in_progress,
- ConnectState *connect_state, Error **errp)
-{
- int sock, rc;
-
- *in_progress = false;
-
- sock = qemu_socket(addr->ai_family, addr->ai_socktype, addr->ai_protocol);
- if (sock < 0) {
- error_setg_errno(errp, errno, "Failed to create socket");
- return -1;
- }
- socket_set_fast_reuse(sock);
- if (connect_state != NULL) {
- qemu_set_nonblock(sock);
- }
- /* connect to peer */
- do {
- rc = 0;
- if (connect(sock, addr->ai_addr, addr->ai_addrlen) < 0) {
- rc = -errno;
- }
- } while (rc == -EINTR);
-
- if (connect_state != NULL && QEMU_SOCKET_RC_INPROGRESS(rc)) {
- connect_state->fd = sock;
- qemu_set_fd_handler(sock, NULL, wait_for_connect, connect_state);
- *in_progress = true;
- } else if (rc < 0) {
- error_setg_errno(errp, errno, "Failed to connect socket");
- closesocket(sock);
- return -1;
- }
- return sock;
-}
-
-static struct addrinfo *inet_parse_connect_saddr(InetSocketAddress *saddr,
- Error **errp)
-{
- struct addrinfo ai, *res;
- int rc;
- Error *err = NULL;
- static int useV4Mapped = 1;
-
- memset(&ai, 0, sizeof(ai));
-
- ai.ai_flags = AI_CANONNAME | AI_ADDRCONFIG;
- if (atomic_read(&useV4Mapped)) {
- ai.ai_flags |= AI_V4MAPPED;
- }
- ai.ai_family = inet_ai_family_from_address(saddr, &err);
- ai.ai_socktype = SOCK_STREAM;
-
- if (err) {
- error_propagate(errp, err);
- return NULL;
- }
-
- if (saddr->host == NULL || saddr->port == NULL) {
- error_setg(errp, "host and/or port not specified");
- return NULL;
- }
-
- /* lookup */
- rc = getaddrinfo(saddr->host, saddr->port, &ai, &res);
-
- /* 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);
- }
- if (rc != 0) {
- error_setg(errp, "address resolution failed for %s:%s: %s",
- saddr->host, saddr->port, gai_strerror(rc));
- return NULL;
- }
- return res;
-}
-
-/**
- * Create a socket and connect it to an address.
- *
- * @saddr: Inet socket address specification
- * @errp: set on error
- * @callback: callback function for non-blocking connect
- * @opaque: opaque for callback function
- *
- * Returns: -1 on error, file descriptor on success.
- *
- * If @callback is non-null, the connect is non-blocking. If this
- * function succeeds, callback will be called when the connection
- * completes, with the file descriptor on success, or -1 on error.
- */
-static int inet_connect_saddr(InetSocketAddress *saddr, Error **errp,
- NonBlockingConnectHandler *callback, void *opaque)
-{
- Error *local_err = NULL;
- struct addrinfo *res, *e;
- int sock = -1;
- bool in_progress;
- ConnectState *connect_state = NULL;
-
- res = inet_parse_connect_saddr(saddr, errp);
- if (!res) {
- return -1;
- }
-
- if (callback != NULL) {
- connect_state = g_malloc0(sizeof(*connect_state));
- connect_state->addr_list = res;
- connect_state->callback = callback;
- connect_state->opaque = opaque;
- }
-
- for (e = res; e != NULL; e = e->ai_next) {
- error_free(local_err);
- local_err = NULL;
- if (connect_state != NULL) {
- connect_state->current_addr = e;
- }
- sock = inet_connect_addr(e, &in_progress, connect_state, &local_err);
- if (sock >= 0) {
- break;
- }
- }
-
- if (sock < 0) {
- error_propagate(errp, local_err);
- } else if (in_progress) {
- /* wait_for_connect() will do the rest */
- return sock;
- } else {
- if (callback) {
- callback(sock, NULL, opaque);
- }
- }
- g_free(connect_state);
- freeaddrinfo(res);
- return sock;
-}
-
-static int inet_dgram_saddr(InetSocketAddress *sraddr,
- InetSocketAddress *sladdr,
- Error **errp)
-{
- struct addrinfo ai, *peer = NULL, *local = NULL;
- const char *addr;
- const char *port;
- int sock = -1, rc;
- Error *err = NULL;
-
- /* lookup peer addr */
- memset(&ai,0, sizeof(ai));
- ai.ai_flags = AI_CANONNAME | AI_V4MAPPED | AI_ADDRCONFIG;
- ai.ai_family = inet_ai_family_from_address(sraddr, &err);
- ai.ai_socktype = SOCK_DGRAM;
-
- if (err) {
- error_propagate(errp, err);
- goto err;
- }
-
- addr = sraddr->host;
- port = sraddr->port;
- if (addr == NULL || strlen(addr) == 0) {
- addr = "localhost";
- }
- if (port == NULL || strlen(port) == 0) {
- error_setg(errp, "remote port not specified");
- goto err;
- }
-
- if (0 != (rc = getaddrinfo(addr, port, &ai, &peer))) {
- error_setg(errp, "address resolution failed for %s:%s: %s", addr, port,
- gai_strerror(rc));
- goto err;
- }
-
- /* lookup local addr */
- memset(&ai,0, sizeof(ai));
- ai.ai_flags = AI_PASSIVE;
- ai.ai_family = peer->ai_family;
- ai.ai_socktype = SOCK_DGRAM;
-
- if (sladdr) {
- addr = sladdr->host;
- port = sladdr->port;
- if (addr == NULL || strlen(addr) == 0) {
- addr = NULL;
- }
- if (!port || strlen(port) == 0) {
- port = "0";
- }
- } else {
- addr = NULL;
- port = "0";
- }
-
- if (0 != (rc = getaddrinfo(addr, port, &ai, &local))) {
- error_setg(errp, "address resolution failed for %s:%s: %s", addr, port,
- gai_strerror(rc));
- goto err;
- }
-
- /* create socket */
- sock = qemu_socket(peer->ai_family, peer->ai_socktype, peer->ai_protocol);
- if (sock < 0) {
- error_setg_errno(errp, errno, "Failed to create socket");
- goto err;
- }
- socket_set_fast_reuse(sock);
-
- /* bind socket */
- if (bind(sock, local->ai_addr, local->ai_addrlen) < 0) {
- error_setg_errno(errp, errno, "Failed to bind socket");
- goto err;
- }
-
- /* connect to peer */
- if (connect(sock,peer->ai_addr,peer->ai_addrlen) < 0) {
- error_setg_errno(errp, errno, "Failed to connect socket");
- goto err;
- }
-
- freeaddrinfo(local);
- freeaddrinfo(peer);
- return sock;
-
-err:
- if (-1 != sock)
- closesocket(sock);
- if (local)
- freeaddrinfo(local);
- if (peer)
- freeaddrinfo(peer);
- return -1;
-}
-
-/* compatibility wrapper */
-InetSocketAddress *inet_parse(const char *str, Error **errp)
-{
- InetSocketAddress *addr;
- const char *optstr, *h;
- char host[65];
- char port[33];
- int to;
- int pos;
-
- addr = g_new0(InetSocketAddress, 1);
-
- /* parse address */
- if (str[0] == ':') {
- /* no host given */
- host[0] = '\0';
- if (1 != sscanf(str, ":%32[^,]%n", port, &pos)) {
- error_setg(errp, "error parsing port in address '%s'", str);
- goto fail;
- }
- } else if (str[0] == '[') {
- /* IPv6 addr */
- if (2 != sscanf(str, "[%64[^]]]:%32[^,]%n", host, port, &pos)) {
- error_setg(errp, "error parsing IPv6 address '%s'", str);
- goto fail;
- }
- addr->ipv6 = addr->has_ipv6 = true;
- } else {
- /* hostname or IPv4 addr */
- if (2 != sscanf(str, "%64[^:]:%32[^,]%n", host, port, &pos)) {
- error_setg(errp, "error parsing address '%s'", str);
- goto fail;
- }
- if (host[strspn(host, "0123456789.")] == '\0') {
- addr->ipv4 = addr->has_ipv4 = true;
- }
- }
-
- addr->host = g_strdup(host);
- addr->port = g_strdup(port);
-
- /* parse options */
- optstr = str + pos;
- h = strstr(optstr, ",to=");
- if (h) {
- h += 4;
- if (sscanf(h, "%d%n", &to, &pos) != 1 ||
- (h[pos] != '\0' && h[pos] != ',')) {
- error_setg(errp, "error parsing to= argument");
- goto fail;
- }
- addr->has_to = true;
- addr->to = to;
- }
- if (strstr(optstr, ",ipv4")) {
- addr->ipv4 = addr->has_ipv4 = true;
- }
- if (strstr(optstr, ",ipv6")) {
- addr->ipv6 = addr->has_ipv6 = true;
- }
- return addr;
-
-fail:
- qapi_free_InetSocketAddress(addr);
- return NULL;
-}
-
-int inet_listen(const char *str, char *ostr, int olen,
- int socktype, int port_offset, Error **errp)
-{
- char *optstr;
- int sock = -1;
- InetSocketAddress *addr;
-
- addr = inet_parse(str, errp);
- if (addr != NULL) {
- sock = inet_listen_saddr(addr, port_offset, true, errp);
- if (sock != -1 && ostr) {
- optstr = strchr(str, ',');
- if (addr->ipv6) {
- snprintf(ostr, olen, "[%s]:%s%s",
- addr->host,
- addr->port,
- optstr ? optstr : "");
- } else {
- snprintf(ostr, olen, "%s:%s%s",
- addr->host,
- addr->port,
- optstr ? optstr : "");
- }
- }
- qapi_free_InetSocketAddress(addr);
- }
- return sock;
-}
-
-/**
- * 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)
-{
- int sock = -1;
- InetSocketAddress *addr;
-
- addr = inet_parse(str, errp);
- if (addr != NULL) {
- sock = inet_connect_saddr(addr, errp, NULL, NULL);
- qapi_free_InetSocketAddress(addr);
- }
- return sock;
-}
-
-/**
- * Create a non-blocking socket and connect it to an address.
- * Calls the callback function with fd in case of success or -1 in case of
- * error.
- *
- * @str: address string
- * @callback: callback function that is called when connect completes,
- * cannot be NULL.
- * @opaque: opaque for callback function
- * @errp: set in case of an error
- *
- * Returns: -1 on immediate error, file descriptor on success.
- **/
-int inet_nonblocking_connect(const char *str,
- NonBlockingConnectHandler *callback,
- void *opaque, Error **errp)
-{
- int sock = -1;
- InetSocketAddress *addr;
-
- g_assert(callback != NULL);
-
- addr = inet_parse(str, errp);
- if (addr != NULL) {
- sock = inet_connect_saddr(addr, errp, callback, opaque);
- qapi_free_InetSocketAddress(addr);
- }
- return sock;
-}
-
-#ifndef _WIN32
-
-static int unix_listen_saddr(UnixSocketAddress *saddr,
- bool update_addr,
- Error **errp)
-{
- struct sockaddr_un un;
- int sock, fd;
-
- sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0);
- if (sock < 0) {
- error_setg_errno(errp, errno, "Failed to create Unix socket");
- return -1;
- }
-
- memset(&un, 0, sizeof(un));
- un.sun_family = AF_UNIX;
- if (saddr->path && strlen(saddr->path)) {
- snprintf(un.sun_path, sizeof(un.sun_path), "%s", saddr->path);
- } else {
- const char *tmpdir = getenv("TMPDIR");
- tmpdir = tmpdir ? tmpdir : "/tmp";
- if (snprintf(un.sun_path, sizeof(un.sun_path), "%s/qemu-socket-XXXXXX",
- tmpdir) >= sizeof(un.sun_path)) {
- error_setg_errno(errp, errno,
- "TMPDIR environment variable (%s) too large", tmpdir);
- goto err;
- }
-
- /*
- * 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.
- */
- fd = mkstemp(un.sun_path);
- if (fd < 0) {
- error_setg_errno(errp, errno,
- "Failed to make a temporary socket name in %s", tmpdir);
- goto err;
- }
- close(fd);
- if (update_addr) {
- g_free(saddr->path);
- saddr->path = g_strdup(un.sun_path);
- }
- }
-
- if (unlink(un.sun_path) < 0 && errno != ENOENT) {
- error_setg_errno(errp, errno,
- "Failed to unlink socket %s", un.sun_path);
- goto err;
- }
- if (bind(sock, (struct sockaddr*) &un, sizeof(un)) < 0) {
- error_setg_errno(errp, errno, "Failed to bind socket to %s", un.sun_path);
- goto err;
- }
- if (listen(sock, 1) < 0) {
- error_setg_errno(errp, errno, "Failed to listen on socket");
- goto err;
- }
-
- return sock;
-
-err:
- closesocket(sock);
- return -1;
-}
-
-static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp,
- NonBlockingConnectHandler *callback, void *opaque)
-{
- struct sockaddr_un un;
- ConnectState *connect_state = NULL;
- int sock, rc;
-
- if (saddr->path == NULL) {
- error_setg(errp, "unix connect: no path specified");
- return -1;
- }
-
- sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0);
- if (sock < 0) {
- error_setg_errno(errp, errno, "Failed to create socket");
- return -1;
- }
- if (callback != NULL) {
- connect_state = g_malloc0(sizeof(*connect_state));
- connect_state->callback = callback;
- connect_state->opaque = opaque;
- qemu_set_nonblock(sock);
- }
-
- memset(&un, 0, sizeof(un));
- un.sun_family = AF_UNIX;
- snprintf(un.sun_path, sizeof(un.sun_path), "%s", saddr->path);
-
- /* connect to peer */
- do {
- rc = 0;
- if (connect(sock, (struct sockaddr *) &un, sizeof(un)) < 0) {
- rc = -errno;
- }
- } while (rc == -EINTR);
-
- if (connect_state != NULL && QEMU_SOCKET_RC_INPROGRESS(rc)) {
- connect_state->fd = sock;
- qemu_set_fd_handler(sock, NULL, wait_for_connect, connect_state);
- return sock;
- } else if (rc >= 0) {
- /* non blocking socket immediate success, call callback */
- if (callback != NULL) {
- callback(sock, NULL, opaque);
- }
- }
-
- if (rc < 0) {
- error_setg_errno(errp, -rc, "Failed to connect socket");
- close(sock);
- sock = -1;
- }
-
- g_free(connect_state);
- return sock;
-}
-
-#else
-
-static int unix_listen_saddr(UnixSocketAddress *saddr,
- bool update_addr,
- Error **errp)
-{
- error_setg(errp, "unix sockets are not available on windows");
- errno = ENOTSUP;
- return -1;
-}
-
-static int unix_connect_saddr(UnixSocketAddress *saddr, Error **errp,
- NonBlockingConnectHandler *callback, void *opaque)
-{
- error_setg(errp, "unix sockets are not available on windows");
- errno = ENOTSUP;
- return -1;
-}
-#endif
-
-/* compatibility wrapper */
-int unix_listen(const char *str, char *ostr, int olen, Error **errp)
-{
- char *path, *optstr;
- int sock, len;
- UnixSocketAddress *saddr;
-
- saddr = g_new0(UnixSocketAddress, 1);
-
- optstr = strchr(str, ',');
- if (optstr) {
- len = optstr - str;
- if (len) {
- path = g_malloc(len+1);
- snprintf(path, len+1, "%.*s", len, str);
- saddr->path = path;
- }
- } else {
- saddr->path = g_strdup(str);
- }
-
- sock = unix_listen_saddr(saddr, true, errp);
-
- if (sock != -1 && ostr)
- snprintf(ostr, olen, "%s%s", saddr->path, optstr ? optstr : "");
- qapi_free_UnixSocketAddress(saddr);
- return sock;
-}
-
-int unix_connect(const char *path, Error **errp)
-{
- UnixSocketAddress *saddr;
- int sock;
-
- saddr = g_new0(UnixSocketAddress, 1);
- saddr->path = g_strdup(path);
- sock = unix_connect_saddr(saddr, errp, NULL, NULL);
- qapi_free_UnixSocketAddress(saddr);
- return sock;
-}
-
-
-int unix_nonblocking_connect(const char *path,
- NonBlockingConnectHandler *callback,
- void *opaque, Error **errp)
-{
- UnixSocketAddress *saddr;
- int sock = -1;
-
- g_assert(callback != NULL);
-
- saddr = g_new0(UnixSocketAddress, 1);
- saddr->path = g_strdup(path);
- sock = unix_connect_saddr(saddr, errp, callback, opaque);
- qapi_free_UnixSocketAddress(saddr);
- return sock;
-}
-
-SocketAddress *socket_parse(const char *str, Error **errp)
-{
- SocketAddress *addr;
-
- addr = g_new0(SocketAddress, 1);
- if (strstart(str, "unix:", NULL)) {
- if (str[5] == '\0') {
- error_setg(errp, "invalid Unix socket address");
- goto fail;
- } else {
- addr->type = SOCKET_ADDRESS_KIND_UNIX;
- addr->u.q_unix.data = g_new(UnixSocketAddress, 1);
- addr->u.q_unix.data->path = g_strdup(str + 5);
- }
- } else if (strstart(str, "fd:", NULL)) {
- if (str[3] == '\0') {
- error_setg(errp, "invalid file descriptor address");
- goto fail;
- } else {
- addr->type = SOCKET_ADDRESS_KIND_FD;
- addr->u.fd.data = g_new(String, 1);
- addr->u.fd.data->str = g_strdup(str + 3);
- }
- } else {
- addr->type = SOCKET_ADDRESS_KIND_INET;
- addr->u.inet.data = inet_parse(str, errp);
- if (addr->u.inet.data == NULL) {
- goto fail;
- }
- }
- return addr;
-
-fail:
- qapi_free_SocketAddress(addr);
- return NULL;
-}
-
-int socket_connect(SocketAddress *addr, Error **errp,
- NonBlockingConnectHandler *callback, void *opaque)
-{
- int fd;
-
- switch (addr->type) {
- case SOCKET_ADDRESS_KIND_INET:
- fd = inet_connect_saddr(addr->u.inet.data, errp, callback, opaque);
- break;
-
- case SOCKET_ADDRESS_KIND_UNIX:
- fd = unix_connect_saddr(addr->u.q_unix.data, errp, callback, opaque);
- break;
-
- case SOCKET_ADDRESS_KIND_FD:
- fd = monitor_get_fd(cur_mon, addr->u.fd.data->str, errp);
- if (fd >= 0 && callback) {
- qemu_set_nonblock(fd);
- callback(fd, NULL, opaque);
- }
- break;
-
- default:
- abort();
- }
- return fd;
-}
-
-int socket_listen(SocketAddress *addr, Error **errp)
-{
- int fd;
-
- switch (addr->type) {
- case SOCKET_ADDRESS_KIND_INET:
- fd = inet_listen_saddr(addr->u.inet.data, 0, false, errp);
- break;
-
- case SOCKET_ADDRESS_KIND_UNIX:
- fd = unix_listen_saddr(addr->u.q_unix.data, false, errp);
- break;
-
- case SOCKET_ADDRESS_KIND_FD:
- fd = monitor_get_fd(cur_mon, addr->u.fd.data->str, errp);
- break;
-
- default:
- abort();
- }
- return fd;
-}
-
-int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp)
-{
- int fd;
-
- switch (remote->type) {
- case SOCKET_ADDRESS_KIND_INET:
- fd = inet_dgram_saddr(remote->u.inet.data,
- local ? local->u.inet.data : NULL, errp);
- break;
-
- default:
- error_setg(errp, "socket type unsupported for datagram");
- fd = -1;
- }
- return fd;
-}
-
-
-static SocketAddress *
-socket_sockaddr_to_address_inet(struct sockaddr_storage *sa,
- socklen_t salen,
- Error **errp)
-{
- char host[NI_MAXHOST];
- char serv[NI_MAXSERV];
- SocketAddress *addr;
- InetSocketAddress *inet;
- 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;
- }
-
- addr = g_new0(SocketAddress, 1);
- addr->type = SOCKET_ADDRESS_KIND_INET;
- inet = addr->u.inet.data = g_new0(InetSocketAddress, 1);
- inet->host = g_strdup(host);
- inet->port = g_strdup(serv);
- if (sa->ss_family == AF_INET) {
- inet->has_ipv4 = inet->ipv4 = true;
- } else {
- inet->has_ipv6 = inet->ipv6 = true;
- }
-
- return addr;
-}
-
-
-#ifndef WIN32
-static SocketAddress *
-socket_sockaddr_to_address_unix(struct sockaddr_storage *sa,
- socklen_t salen,
- Error **errp)
-{
- SocketAddress *addr;
- struct sockaddr_un *su = (struct sockaddr_un *)sa;
-
- addr = g_new0(SocketAddress, 1);
- addr->type = SOCKET_ADDRESS_KIND_UNIX;
- addr->u.q_unix.data = g_new0(UnixSocketAddress, 1);
- if (su->sun_path[0]) {
- addr->u.q_unix.data->path = g_strndup(su->sun_path,
- sizeof(su->sun_path));
- }
-
- return addr;
-}
-#endif /* WIN32 */
-
-SocketAddress *
-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 */
-
- default:
- error_setg(errp, "socket family %d unsupported",
- sa->ss_family);
- return NULL;
- }
- return 0;
-}
-
-
-SocketAddress *socket_local_address(int fd, Error **errp)
-{
- struct sockaddr_storage ss;
- socklen_t sslen = sizeof(ss);
-
- if (getsockname(fd, (struct sockaddr *)&ss, &sslen) < 0) {
- error_setg_errno(errp, errno, "%s",
- "Unable to query local socket address");
- return NULL;
- }
-
- return socket_sockaddr_to_address(&ss, sslen, errp);
-}
-
-
-SocketAddress *socket_remote_address(int fd, Error **errp)
-{
- struct sockaddr_storage ss;
- socklen_t sslen = sizeof(ss);
-
- if (getpeername(fd, (struct sockaddr *)&ss, &sslen) < 0) {
- error_setg_errno(errp, errno, "%s",
- "Unable to query remote socket address");
- return NULL;
- }
-
- return socket_sockaddr_to_address(&ss, sslen, errp);
-}
-
-
-void qapi_copy_SocketAddress(SocketAddress **p_dest,
- SocketAddress *src)
-{
- QmpOutputVisitor *qov;
- QmpInputVisitor *qiv;
- Visitor *ov, *iv;
- QObject *obj;
-
- *p_dest = NULL;
-
- qov = qmp_output_visitor_new();
- ov = qmp_output_get_visitor(qov);
- visit_type_SocketAddress(ov, NULL, &src, &error_abort);
- obj = qmp_output_get_qobject(qov);
- qmp_output_visitor_cleanup(qov);
- if (!obj) {
- return;
- }
-
- qiv = qmp_input_visitor_new(obj);
- iv = qmp_input_get_visitor(qiv);
- visit_type_SocketAddress(iv, NULL, p_dest, &error_abort);
- qmp_input_visitor_cleanup(qiv);
- qobject_decref(obj);
-}