neatvnc/include/common.h

120 lines
2.9 KiB
C

/*
* Copyright (c) 2019 - 2020 Andri Yngvason
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#pragma once
#include <stdbool.h>
#include <pixman.h>
#include <zlib.h>
#include "rfb-proto.h"
#include "sys/queue.h"
#include "neatvnc.h"
#include "config.h"
#ifdef ENABLE_TLS
#include <gnutls/gnutls.h>
#endif
#define MAX_ENCODINGS 32
#define MAX_OUTGOING_FRAMES 4
#define MSG_BUFFER_SIZE 4096
#define MAX_CUT_TEXT_SIZE 10000000
enum nvnc_client_state {
VNC_CLIENT_STATE_ERROR = -1,
VNC_CLIENT_STATE_WAITING_FOR_VERSION = 0,
VNC_CLIENT_STATE_WAITING_FOR_SECURITY,
#ifdef ENABLE_TLS
VNC_CLIENT_STATE_WAITING_FOR_VENCRYPT_VERSION,
VNC_CLIENT_STATE_WAITING_FOR_VENCRYPT_SUBTYPE,
VNC_CLIENT_STATE_WAITING_FOR_VENCRYPT_PLAIN_AUTH,
#endif
VNC_CLIENT_STATE_WAITING_FOR_INIT,
VNC_CLIENT_STATE_READY,
};
struct nvnc;
struct stream;
struct aml_handler;
struct aml_idle;
struct nvnc_display;
struct nvnc_common {
void* userdata;
nvnc_cleanup_fn cleanup_fn;
};
struct cut_text {
char* buffer;
size_t length;
size_t index;
};
struct nvnc_client {
struct nvnc_common common;
int ref;
struct stream* net_stream;
struct nvnc* server;
enum nvnc_client_state state;
bool has_pixfmt;
struct rfb_pixel_format pixfmt;
enum rfb_encodings encodings[MAX_ENCODINGS + 1];
size_t n_encodings;
LIST_ENTRY(nvnc_client) link;
struct pixman_region16 damage;
int n_pending_requests;
bool is_updating;
struct nvnc_fb* current_fb;
nvnc_client_fn cleanup_fn;
size_t buffer_index;
size_t buffer_len;
uint8_t msg_buffer[MSG_BUFFER_SIZE];
uint32_t known_width;
uint32_t known_height;
struct cut_text cut_text;
bool is_qemu_key_ext_notified;
struct encoder* encoder;
};
LIST_HEAD(nvnc_client_list, nvnc_client);
struct nvnc {
struct nvnc_common common;
int fd;
struct aml_handler* poll_handle;
struct nvnc_client_list clients;
char name[256];
void* userdata;
nvnc_key_fn key_fn;
nvnc_key_fn key_code_fn;
nvnc_pointer_fn pointer_fn;
nvnc_fb_req_fn fb_req_fn;
nvnc_client_fn new_client_fn;
nvnc_cut_text_fn cut_text_fn;
struct nvnc_display* display;
#ifdef ENABLE_TLS
gnutls_certificate_credentials_t tls_creds;
nvnc_auth_fn auth_fn;
void* auth_ud;
#endif
};
void nvnc__damage_region(struct nvnc* self,
const struct pixman_region16* damage);