108 lines
2.7 KiB
C
108 lines
2.7 KiB
C
/*
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* Copyright (c) 2019 - 2020 Andri Yngvason
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#pragma once
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#include <stdbool.h>
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#include <pixman.h>
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#include <zlib.h>
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#include "rfb-proto.h"
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#include "sys/queue.h"
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#include "neatvnc.h"
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#include "tight-encoder-v2.h"
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#include "config.h"
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#ifdef ENABLE_TLS
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#include <gnutls/gnutls.h>
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#endif
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#define MAX_ENCODINGS 32
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#define MAX_OUTGOING_FRAMES 4
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#define MSG_BUFFER_SIZE 4096
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enum nvnc_client_state {
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VNC_CLIENT_STATE_ERROR = -1,
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VNC_CLIENT_STATE_WAITING_FOR_VERSION = 0,
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VNC_CLIENT_STATE_WAITING_FOR_SECURITY,
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#ifdef ENABLE_TLS
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VNC_CLIENT_STATE_WAITING_FOR_VENCRYPT_VERSION,
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VNC_CLIENT_STATE_WAITING_FOR_VENCRYPT_SUBTYPE,
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VNC_CLIENT_STATE_WAITING_FOR_VENCRYPT_PLAIN_AUTH,
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#endif
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VNC_CLIENT_STATE_WAITING_FOR_INIT,
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VNC_CLIENT_STATE_READY,
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};
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struct nvnc;
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struct stream;
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struct aml_handler;
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struct aml_idle;
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struct nvnc_display;
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struct nvnc_common {
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void* userdata;
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};
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struct nvnc_client {
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struct nvnc_common common;
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int ref;
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struct stream* net_stream;
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struct nvnc* server;
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enum nvnc_client_state state;
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bool has_pixfmt;
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struct rfb_pixel_format pixfmt;
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enum rfb_encodings encodings[MAX_ENCODINGS + 1];
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size_t n_encodings;
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LIST_ENTRY(nvnc_client) link;
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struct pixman_region16 damage;
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int n_pending_requests;
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bool is_updating;
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nvnc_client_fn cleanup_fn;
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z_stream z_stream;
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struct tight_encoder_v2 tight_encoder;
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size_t buffer_index;
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size_t buffer_len;
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uint8_t msg_buffer[MSG_BUFFER_SIZE];
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};
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LIST_HEAD(nvnc_client_list, nvnc_client);
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struct nvnc {
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struct nvnc_common common;
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int fd;
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struct aml_handler* poll_handle;
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struct aml_idle* dispatch_handler;
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struct nvnc_client_list clients;
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char name[256];
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void* userdata;
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nvnc_key_fn key_fn;
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nvnc_pointer_fn pointer_fn;
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nvnc_fb_req_fn fb_req_fn;
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nvnc_client_fn new_client_fn;
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struct nvnc_display* display;
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#ifdef ENABLE_TLS
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gnutls_certificate_credentials_t tls_creds;
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nvnc_auth_fn auth_fn;
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void* auth_ud;
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#endif
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};
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void nvnc__damage_region(struct nvnc* self,
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const struct pixman_region16* damage);
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