1gnutls_ext_register(3) gnutls gnutls_ext_register(3)
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6 gnutls_ext_register - API function
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9 #include <gnutls/gnutls.h>
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11 int gnutls_ext_register(const char * name, int id,
12 gnutls_ext_parse_type_t parse_point, gnutls_ext_recv_func recv_func,
13 gnutls_ext_send_func send_func, gnutls_ext_deinit_data_func
14 deinit_func, gnutls_ext_pack_func pack_func, gnutls_ext_unpack_func
15 unpack_func);
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18 const char * name
19 the name of the extension to register
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21 int id the numeric TLS id of the extension
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23 gnutls_ext_parse_type_t parse_point
24 the parse type of the extension (see
25 gnutls_ext_parse_type_t)
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27 gnutls_ext_recv_func recv_func
28 a function to receive the data
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30 gnutls_ext_send_func send_func
31 a function to send the data
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33 gnutls_ext_deinit_data_func deinit_func
34 a function deinitialize any private data
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36 gnutls_ext_pack_func pack_func
37 a function which serializes the extension's private data
38 (used on session packing for resumption)
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40 gnutls_ext_unpack_func unpack_func
41 a function which will deserialize the extension's private
42 data
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45 This function will register a new extension type. The extension will
46 remain registered until gnutls_global_deinit() is called. If the exten‐
47 sion type is already registered then GNUTLS_E_ALREADY_REGISTERED will
48 be returned.
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50 Each registered extension can store temporary data into the gnutls_ses‐
51 sion_t structure using gnutls_ext_set_data(), and they can be retrieved
52 using gnutls_ext_get_data().
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54 Any extensions registered with this function are valid for the client
55 and TLS1.2 server hello (or encrypted extensions for TLS1.3).
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57 This function is not thread safe.
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60 GNUTLS_E_SUCCESS on success, otherwise a negative error code.
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63 3.4.0
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66 Report bugs to <bugs@gnutls.org>.
67 Home page: https://www.gnutls.org
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71 Copyright © 2001-2019 Free Software Foundation, Inc., and others.
72 Copying and distribution of this file, with or without modification,
73 are permitted in any medium without royalty provided the copyright
74 notice and this notice are preserved.
75
77 The full documentation for gnutls is maintained as a Texinfo manual.
78 If the /usr/share/doc/gnutls/ directory does not contain the HTML form
79 visit
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81 https://www.gnutls.org/manual/
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83gnutls 3.6.11 gnutls_ext_register(3)