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ui/vdagent: split clipboard recv message handling 

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210805135715.857938-12-marcandre.lureau@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Marc-André Lureau 2021-08-05 17:57:08 +04:00
parent 5fb2e8d99b
commit 3b99bb4c3a
1 changed files with 89 additions and 68 deletions
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157
ui/vdagent.c
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@ -433,13 +433,94 @@ static void vdagent_clipboard_request(QemuClipboardInfo *info,
vdagent_send_msg(vd, msg);
}
static void vdagent_clipboard_recv_grab(VDAgentChardev *vd, uint8_t s, uint32_t size, void *data)
{
g_autoptr(QemuClipboardInfo) info = NULL;
trace_vdagent_cb_grab_selection(GET_NAME(sel_name, s));
info = qemu_clipboard_info_new(&vd->cbpeer, s);
if (size > sizeof(uint32_t) * 10) {
/*
* spice has 6 types as of 2021. Limiting to 10 entries
* so we we have some wiggle room.
*/
return;
}
while (size >= sizeof(uint32_t)) {
trace_vdagent_cb_grab_type(GET_NAME(type_name, *(uint32_t *)data));
switch (*(uint32_t *)data) {
case VD_AGENT_CLIPBOARD_UTF8_TEXT:
info->types[QEMU_CLIPBOARD_TYPE_TEXT].available = true;
break;
default:
break;
}
data += sizeof(uint32_t);
size -= sizeof(uint32_t);
}
qemu_clipboard_update(info);
}
static void vdagent_clipboard_recv_request(VDAgentChardev *vd, uint8_t s, uint32_t size, void *data)
{
QemuClipboardType type;
if (size < sizeof(uint32_t)) {
return;
}
switch (*(uint32_t *)data) {
case VD_AGENT_CLIPBOARD_UTF8_TEXT:
type = QEMU_CLIPBOARD_TYPE_TEXT;
break;
default:
return;
}
if (vd->cbinfo[s] && vd->cbinfo[s]->types[type].available &&
vd->cbinfo[s]->owner != &vd->cbpeer) {
if (vd->cbinfo[s]->types[type].data) {
vdagent_send_clipboard_data(vd, vd->cbinfo[s], type);
} else {
vd->cbpending[s] |= (1 << type);
qemu_clipboard_request(vd->cbinfo[s], type);
}
}
}
static void vdagent_clipboard_recv_data(VDAgentChardev *vd, uint8_t s, uint32_t size, void *data)
{
QemuClipboardType type;
if (size < sizeof(uint32_t)) {
return;
}
switch (*(uint32_t *)data) {
case VD_AGENT_CLIPBOARD_UTF8_TEXT:
type = QEMU_CLIPBOARD_TYPE_TEXT;
break;
default:
return;
}
data += 4;
size -= 4;
qemu_clipboard_set_data(&vd->cbpeer, vd->cbinfo[s], type, size, data, true);
}
static void vdagent_clipboard_recv_release(VDAgentChardev *vd, uint8_t s)
{
g_autoptr(QemuClipboardInfo) info = NULL;
if (vd->cbinfo[s] && vd->cbinfo[s]->owner == &vd->cbpeer) {
/* set empty clipboard info */
info = qemu_clipboard_info_new(NULL, s);
qemu_clipboard_update(info);
}
}
static void vdagent_chr_recv_clipboard(VDAgentChardev *vd, VDAgentMessage *msg)
{
uint8_t s = VD_AGENT_CLIPBOARD_SELECTION_CLIPBOARD;
uint32_t size = msg->size;
void *data = msg->data;
g_autoptr(QemuClipboardInfo) info = NULL;
QemuClipboardType type;
if (have_selection(vd)) {
if (size < 4) {
@ -455,75 +536,15 @@ static void vdagent_chr_recv_clipboard(VDAgentChardev *vd, VDAgentMessage *msg)
switch (msg->type) {
case VD_AGENT_CLIPBOARD_GRAB:
trace_vdagent_cb_grab_selection(GET_NAME(sel_name, s));
info = qemu_clipboard_info_new(&vd->cbpeer, s);
if (size > sizeof(uint32_t) * 10) {
/*
* spice has 6 types as of 2021. Limiting to 10 entries
* so we we have some wiggle room.
*/
return;
}
while (size >= sizeof(uint32_t)) {
trace_vdagent_cb_grab_type(GET_NAME(type_name, *(uint32_t *)data));
switch (*(uint32_t *)data) {
case VD_AGENT_CLIPBOARD_UTF8_TEXT:
info->types[QEMU_CLIPBOARD_TYPE_TEXT].available = true;
break;
default:
break;
}
data += sizeof(uint32_t);
size -= sizeof(uint32_t);
}
qemu_clipboard_update(info);
break;
return vdagent_clipboard_recv_grab(vd, s, size, data);
case VD_AGENT_CLIPBOARD_REQUEST:
if (size < sizeof(uint32_t)) {
return;
}
switch (*(uint32_t *)data) {
case VD_AGENT_CLIPBOARD_UTF8_TEXT:
type = QEMU_CLIPBOARD_TYPE_TEXT;
break;
default:
return;
}
if (vd->cbinfo[s] &&
vd->cbinfo[s]->types[type].available &&
vd->cbinfo[s]->owner != &vd->cbpeer) {
if (vd->cbinfo[s]->types[type].data) {
vdagent_send_clipboard_data(vd, vd->cbinfo[s], type);
} else {
vd->cbpending[s] |= (1 << type);
qemu_clipboard_request(vd->cbinfo[s], type);
}
}
break;
return vdagent_clipboard_recv_request(vd, s, size, data);
case VD_AGENT_CLIPBOARD: /* data */
if (size < sizeof(uint32_t)) {
return;
}
switch (*(uint32_t *)data) {
case VD_AGENT_CLIPBOARD_UTF8_TEXT:
type = QEMU_CLIPBOARD_TYPE_TEXT;
break;
default:
return;
}
data += 4;
size -= 4;
qemu_clipboard_set_data(&vd->cbpeer, vd->cbinfo[s], type,
size, data, true);
break;
return vdagent_clipboard_recv_data(vd, s, size, data);
case VD_AGENT_CLIPBOARD_RELEASE:
if (vd->cbinfo[s] &&
vd->cbinfo[s]->owner == &vd->cbpeer) {
/* set empty clipboard info */
info = qemu_clipboard_info_new(NULL, s);
qemu_clipboard_update(info);
}
break;
return vdagent_clipboard_recv_release(vd, s);
default:
g_assert_not_reached();
}
}