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tcptls/iostream: Add support for setting SNI on client TLS connections

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If the hostname field of the ast_tcptls_session_args structure is
set (which it is for websocket client connections), that hostname
will now automatically be used in an SNI TLS extension in the client
hello.

Resolves: #713

UserNote: Secure websocket client connections now send SNI in
the TLS client hello.

(cherry picked from commit 7223dfe244)
This commit is contained in:
George Joseph
2024-04-23 14:15:20 -06:00
committed by Asterisk Development Team
parent d1cde2a864
commit 10c5aa65e8
3 changed files with 40 additions and 5 deletions
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11
include/asterisk/iostream.h
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@@ -116,6 +116,17 @@ void ast_iostream_set_timeout_sequence(struct ast_iostream *stream, struct timev
*/
void ast_iostream_set_exclusive_input(struct ast_iostream *stream, int exclusive_input);
/*!
* \brief Set the iostream's SNI hostname for TLS client connections
*
* \param stream A pointer to an iostream
* \param sni_hostname The hostname to use for SNI when in client mode
*
* \retval 0 if the hostname was set successfully.
* \retval -1 if memory could not be allocated for the hostname.
*/
int ast_iostream_set_sni_hostname(struct ast_iostream *stream, const char *sni_hostname);
/*!
* \brief Get an iostream's file descriptor.
*