From 2b54aa879ea8490e25107dfc51a6ee268c84c273 Mon Sep 17 00:00:00 2001 From: Luiz Capitulino Date: Mon, 17 Oct 2011 16:41:22 -0200 Subject: qapi: Convert query-vnc There are three important remarks in relation to the non-qapi command: 1. This commit also fixes the behavior of the 'query-vnc' and 'info vnc' commands to return an error when qemu is built without VNC support (ie. --disable-vnc). The non-qapi command would return the OK response in QMP and no response in HMP 2. The qapi version explicitly marks the fields 'host', 'family', 'service' and 'auth' as optional. Their are not documented as optional in the non-qapi command doc, but they would not be returned if vnc support is disabled. The qapi version maintains the same semantics, but documents those fields correctly 3. The 'clients' field, which is a list, is marked as optional but is always returned. If there are no clients connected an empty list is returned. This is not the Right Way to this in the qapi but it's how the non-qapi command used to work Signed-off-by: Anthony Liguori Signed-off-by: Luiz Capitulino --- ui/vnc.c | 135 +++++++++++++++++++++++++++++++++++++++------------------------ 1 file changed, 83 insertions(+), 52 deletions(-) (limited to 'ui/vnc.c') diff --git a/ui/vnc.c b/ui/vnc.c index fc3a612..32d4cb7 100644 --- a/ui/vnc.c +++ b/ui/vnc.c @@ -31,6 +31,7 @@ #include "qemu-timer.h" #include "acl.h" #include "qemu-objects.h" +#include "qmp-commands.h" #define VNC_REFRESH_INTERVAL_BASE 30 #define VNC_REFRESH_INTERVAL_INC 50 @@ -274,80 +275,110 @@ static void vnc_qmp_event(VncState *vs, MonitorEvent event) qobject_decref(data); } -static void info_vnc_iter(QObject *obj, void *opaque) +static VncClientInfo *qmp_query_vnc_client(const VncState *client) { - QDict *client; - Monitor *mon = opaque; + struct sockaddr_storage sa; + socklen_t salen = sizeof(sa); + char host[NI_MAXHOST]; + char serv[NI_MAXSERV]; + VncClientInfo *info; + + if (getpeername(client->csock, (struct sockaddr *)&sa, &salen) < 0) { + return NULL; + } + + if (getnameinfo((struct sockaddr *)&sa, salen, + host, sizeof(host), + serv, sizeof(serv), + NI_NUMERICHOST | NI_NUMERICSERV) < 0) { + return NULL; + } - client = qobject_to_qdict(obj); - monitor_printf(mon, "Client:\n"); - monitor_printf(mon, " address: %s:%s\n", - qdict_get_str(client, "host"), - qdict_get_str(client, "service")); + info = g_malloc0(sizeof(*info)); + info->host = g_strdup(host); + info->service = g_strdup(serv); + info->family = g_strdup(inet_strfamily(sa.ss_family)); #ifdef CONFIG_VNC_TLS - monitor_printf(mon, " x509_dname: %s\n", - qdict_haskey(client, "x509_dname") ? - qdict_get_str(client, "x509_dname") : "none"); + if (client->tls.session && client->tls.dname) { + info->has_x509_dname = true; + info->x509_dname = g_strdup(client->tls.dname); + } #endif #ifdef CONFIG_VNC_SASL - monitor_printf(mon, " username: %s\n", - qdict_haskey(client, "sasl_username") ? - qdict_get_str(client, "sasl_username") : "none"); -#endif -} - -void do_info_vnc_print(Monitor *mon, const QObject *data) -{ - QDict *server; - QList *clients; - - server = qobject_to_qdict(data); - if (qdict_get_bool(server, "enabled") == 0) { - monitor_printf(mon, "Server: disabled\n"); - return; + if (client->sasl.conn && client->sasl.username) { + info->has_sasl_username = true; + info->sasl_username = g_strdup(client->sasl.username); } +#endif - monitor_printf(mon, "Server:\n"); - monitor_printf(mon, " address: %s:%s\n", - qdict_get_str(server, "host"), - qdict_get_str(server, "service")); - monitor_printf(mon, " auth: %s\n", qdict_get_str(server, "auth")); - - clients = qdict_get_qlist(server, "clients"); - if (qlist_empty(clients)) { - monitor_printf(mon, "Client: none\n"); - } else { - qlist_iter(clients, info_vnc_iter, mon); - } + return info; } -void do_info_vnc(Monitor *mon, QObject **ret_data) +VncInfo *qmp_query_vnc(Error **errp) { + VncInfo *info = g_malloc0(sizeof(*info)); + if (vnc_display == NULL || vnc_display->display == NULL) { - *ret_data = qobject_from_jsonf("{ 'enabled': false }"); + info->enabled = false; } else { - QList *clist; + VncClientInfoList *cur_item = NULL; + struct sockaddr_storage sa; + socklen_t salen = sizeof(sa); + char host[NI_MAXHOST]; + char serv[NI_MAXSERV]; VncState *client; - clist = qlist_new(); + info->enabled = true; + + /* for compatibility with the original command */ + info->has_clients = true; + QTAILQ_FOREACH(client, &vnc_display->clients, next) { - if (client->info) { - /* incref so that it's not freed by upper layers */ - qobject_incref(client->info); - qlist_append_obj(clist, client->info); + VncClientInfoList *cinfo = g_malloc0(sizeof(*info)); + cinfo->value = qmp_query_vnc_client(client); + + /* XXX: waiting for the qapi to support GSList */ + if (!cur_item) { + info->clients = cur_item = cinfo; + } else { + cur_item->next = cinfo; + cur_item = cinfo; } } - *ret_data = qobject_from_jsonf("{ 'enabled': true, 'clients': %p }", - QOBJECT(clist)); - assert(*ret_data != NULL); + if (getsockname(vnc_display->lsock, (struct sockaddr *)&sa, + &salen) == -1) { + error_set(errp, QERR_UNDEFINED_ERROR); + goto out_error; + } - if (vnc_server_info_put(qobject_to_qdict(*ret_data)) < 0) { - qobject_decref(*ret_data); - *ret_data = NULL; + if (getnameinfo((struct sockaddr *)&sa, salen, + host, sizeof(host), + serv, sizeof(serv), + NI_NUMERICHOST | NI_NUMERICSERV) < 0) { + error_set(errp, QERR_UNDEFINED_ERROR); + goto out_error; } + + info->has_host = true; + info->host = g_strdup(host); + + info->has_service = true; + info->service = g_strdup(serv); + + info->has_family = true; + info->family = g_strdup(inet_strfamily(sa.ss_family)); + + info->has_auth = true; + info->auth = g_strdup(vnc_auth_name(vnc_display)); } + + return info; + +out_error: + qapi_free_VncInfo(info); + return NULL; } /* TODO -- cgit v1.1