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sockets: Convert to new qapi union layout

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We have two issues with our qapi union layout:
1) Even though the QMP wire format spells the tag 'type', the
C code spells it 'kind', requiring some hacks in the generator.
2) The C struct uses an anonymous union, which places all tag
values in the same namespace as all non-variant members. This
leads to spurious collisions if a tag value matches a non-variant
member's name.

Make the conversion to the new layout for socket-related code.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1445898903-12082-17-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Eric Blake 2015-10-26 16:34:55 -06:00 • committed by Markus Armbruster
parent 6a8f9661dc
commit 2d32addae7
3 changed files with 61 additions and 61 deletions
Download patch file Download diff file Expand all files Collapse all files

62
util/qemu-sockets.c
View file

@ -918,23 +918,23 @@ SocketAddress *socket_parse(const char *str, Error **errp)
error_setg(errp, "invalid Unix socket address");
goto fail;
} else {
addr->kind = SOCKET_ADDRESS_KIND_UNIX;
addr->q_unix = g_new(UnixSocketAddress, 1);
addr->q_unix->path = g_strdup(str + 5);
addr->type = SOCKET_ADDRESS_KIND_UNIX;
addr->u.q_unix = g_new(UnixSocketAddress, 1);
addr->u.q_unix->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->kind = SOCKET_ADDRESS_KIND_FD;
addr->fd = g_new(String, 1);
addr->fd->str = g_strdup(str + 3);
addr->type = SOCKET_ADDRESS_KIND_FD;
addr->u.fd = g_new(String, 1);
addr->u.fd->str = g_strdup(str + 3);
}
} else {
addr->kind = SOCKET_ADDRESS_KIND_INET;
addr->inet = inet_parse(str, errp);
if (addr->inet == NULL) {
addr->type = SOCKET_ADDRESS_KIND_INET;
addr->u.inet = inet_parse(str, errp);
if (addr->u.inet == NULL) {
goto fail;
}
}
@ -952,19 +952,19 @@ int socket_connect(SocketAddress *addr, Error **errp,
int fd;
opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort);
switch (addr->kind) {
switch (addr->type) {
case SOCKET_ADDRESS_KIND_INET:
inet_addr_to_opts(opts, addr->inet);
inet_addr_to_opts(opts, addr->u.inet);
fd = inet_connect_opts(opts, errp, callback, opaque);
break;
case SOCKET_ADDRESS_KIND_UNIX:
qemu_opt_set(opts, "path", addr->q_unix->path, &error_abort);
qemu_opt_set(opts, "path", addr->u.q_unix->path, &error_abort);
fd = unix_connect_opts(opts, errp, callback, opaque);
break;
case SOCKET_ADDRESS_KIND_FD:
fd = monitor_get_fd(cur_mon, addr->fd->str, errp);
fd = monitor_get_fd(cur_mon, addr->u.fd->str, errp);
if (fd >= 0 && callback) {
qemu_set_nonblock(fd);
callback(fd, NULL, opaque);
@ -984,19 +984,19 @@ int socket_listen(SocketAddress *addr, Error **errp)
int fd;
opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort);
switch (addr->kind) {
switch (addr->type) {
case SOCKET_ADDRESS_KIND_INET:
inet_addr_to_opts(opts, addr->inet);
inet_addr_to_opts(opts, addr->u.inet);
fd = inet_listen_opts(opts, 0, errp);
break;
case SOCKET_ADDRESS_KIND_UNIX:
qemu_opt_set(opts, "path", addr->q_unix->path, &error_abort);
qemu_opt_set(opts, "path", addr->u.q_unix->path, &error_abort);
fd = unix_listen_opts(opts, errp);
break;
case SOCKET_ADDRESS_KIND_FD:
fd = monitor_get_fd(cur_mon, addr->fd->str, errp);
fd = monitor_get_fd(cur_mon, addr->u.fd->str, errp);
break;
default:
@ -1012,12 +1012,12 @@ int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp)
int fd;
opts = qemu_opts_create(&socket_optslist, NULL, 0, &error_abort);
switch (remote->kind) {
switch (remote->type) {
case SOCKET_ADDRESS_KIND_INET:
inet_addr_to_opts(opts, remote->inet);
inet_addr_to_opts(opts, remote->u.inet);
if (local) {
qemu_opt_set(opts, "localaddr", local->inet->host, &error_abort);
qemu_opt_set(opts, "localport", local->inet->port, &error_abort);
qemu_opt_set(opts, "localaddr", local->u.inet->host, &error_abort);
qemu_opt_set(opts, "localport", local->u.inet->port, &error_abort);
}
fd = inet_dgram_opts(opts, errp);
break;
@ -1052,14 +1052,14 @@ socket_sockaddr_to_address_inet(struct sockaddr_storage *sa,
}
addr = g_new0(SocketAddress, 1);
addr->kind = SOCKET_ADDRESS_KIND_INET;
addr->inet = g_new0(InetSocketAddress, 1);
addr->inet->host = g_strdup(host);
addr->inet->port = g_strdup(serv);
addr->type = SOCKET_ADDRESS_KIND_INET;
addr->u.inet = g_new0(InetSocketAddress, 1);
addr->u.inet->host = g_strdup(host);
addr->u.inet->port = g_strdup(serv);
if (sa->ss_family == AF_INET) {
addr->inet->has_ipv4 = addr->inet->ipv4 = true;
addr->u.inet->has_ipv4 = addr->u.inet->ipv4 = true;
} else {
addr->inet->has_ipv6 = addr->inet->ipv6 = true;
addr->u.inet->has_ipv6 = addr->u.inet->ipv6 = true;
}
return addr;
@ -1076,11 +1076,11 @@ socket_sockaddr_to_address_unix(struct sockaddr_storage *sa,
struct sockaddr_un *su = (struct sockaddr_un *)sa;
addr = g_new0(SocketAddress, 1);
addr->kind = SOCKET_ADDRESS_KIND_UNIX;
addr->q_unix = g_new0(UnixSocketAddress, 1);
addr->type = SOCKET_ADDRESS_KIND_UNIX;
addr->u.q_unix = g_new0(UnixSocketAddress, 1);
if (su->sun_path[0]) {
addr->q_unix->path = g_strndup(su->sun_path,
sizeof(su->sun_path));
addr->u.q_unix->path = g_strndup(su->sun_path,
sizeof(su->sun_path));
}
return addr;