mirror of
https://github.com/kasmtech/KasmVNC.git
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139 lines
3.7 KiB
C
139 lines
3.7 KiB
C
#include <openssl/ssl.h>
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#include <stdint.h>
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#define BUFSIZE 65536
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#define DBUFSIZE (BUFSIZE * 3) / 4 - 20
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#define SERVER_HANDSHAKE_HIXIE "HTTP/1.1 101 Web Socket Protocol Handshake\r\n\
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Upgrade: WebSocket\r\n\
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Connection: Upgrade\r\n\
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%sWebSocket-Origin: %s\r\n\
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%sWebSocket-Location: %s://%s%s\r\n\
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%sWebSocket-Protocol: %s\r\n\
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\r\n%s"
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#define SERVER_HANDSHAKE_HYBI "HTTP/1.1 101 Switching Protocols\r\n\
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Upgrade: websocket\r\n\
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Connection: Upgrade\r\n\
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Sec-WebSocket-Accept: %s\r\n\
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Sec-WebSocket-Protocol: %s\r\n\
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\r\n"
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#define HYBI_GUID "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
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#define HYBI10_ACCEPTHDRLEN 29
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#define HIXIE_MD5_DIGEST_LENGTH 16
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#define POLICY_RESPONSE "<cross-domain-policy><allow-access-from domain=\"*\" to-ports=\"*\" /></cross-domain-policy>\n"
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#define OPCODE_TEXT 0x01
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#define OPCODE_BINARY 0x02
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typedef struct {
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char path[1024+1];
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char host[1024+1];
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char origin[1024+1];
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char version[1024+1];
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char connection[1024+1];
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char protocols[1024+1];
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char key1[1024+1];
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char key2[1024+1];
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char key3[8+1];
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} headers_t;
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typedef struct {
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int sockfd;
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SSL_CTX *ssl_ctx;
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SSL *ssl;
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int hixie;
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int hybi;
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int opcode;
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headers_t *headers;
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char *cin_buf;
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char *cout_buf;
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char *tin_buf;
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char *tout_buf;
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char user[32];
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char ip[64];
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} ws_ctx_t;
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struct wspass_t {
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int csock;
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unsigned id;
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char ip[64];
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};
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typedef struct {
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int verbose;
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int listen_sock;
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unsigned int handler_id;
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const char *cert;
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const char *key;
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uint8_t disablebasicauth;
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const char *passwdfile;
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int ssl_only;
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const char *httpdir;
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void *messager;
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uint8_t *(*screenshotCb)(void *messager, uint16_t w, uint16_t h, const uint8_t q,
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const uint8_t dedup,
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uint32_t *len, uint8_t *staging);
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uint8_t (*adduserCb)(void *messager, const char name[], const char pw[],
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const uint8_t write);
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uint8_t (*removeCb)(void *messager, const char name[]);
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uint8_t (*givecontrolCb)(void *messager, const char name[]);
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void (*bottleneckStatsCb)(void *messager, char *buf, uint32_t len);
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} settings_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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int resolve_host(struct in_addr *sin_addr, const char *hostname);
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ssize_t ws_recv(ws_ctx_t *ctx, void *buf, size_t len);
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ssize_t ws_send(ws_ctx_t *ctx, const void *buf, size_t len);
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/* base64.c declarations */
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//int b64_ntop(u_char const *src, size_t srclength, char *target, size_t targsize);
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//int b64_pton(char const *src, u_char *target, size_t targsize);
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extern __thread unsigned wsthread_handler_id;
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#define gen_handler_msg(stream, ...) \
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if (settings.verbose) { \
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fprintf(stream, " websocket %d: ", wsthread_handler_id); \
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fprintf(stream, __VA_ARGS__); \
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}
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#define wserr(...) \
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{ \
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fprintf(stderr, " websocket %d: ", wsthread_handler_id); \
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fprintf(stderr, __VA_ARGS__); \
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}
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#define handler_msg(...) gen_handler_msg(stderr, __VA_ARGS__);
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#define handler_emsg(...) gen_handler_msg(stderr, __VA_ARGS__);
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void traffic(const char * token);
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int encode_hixie(u_char const *src, size_t srclength,
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char *target, size_t targsize);
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int decode_hixie(char *src, size_t srclength,
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u_char *target, size_t targsize,
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unsigned int *opcode, unsigned int *left);
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int encode_hybi(u_char const *src, size_t srclength,
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char *target, size_t targsize, unsigned int opcode);
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int decode_hybi(unsigned char *src, size_t srclength,
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u_char *target, size_t targsize,
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unsigned int *opcode, unsigned int *left);
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void *start_server(void *unused);
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#ifdef __cplusplus
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} // extern C
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#endif
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