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TLS_CONFIG_SET_SESSION_ID(3) Library Functions ManuaTLS_CONFIG_SET_SESSION_ID(3)

NAME
     tls_config_set_session_fd, 		      tls_config_set_session_id,
     tls_config_set_session_lifetime, tls_config_add_ticket_key -- configure re-
     suming of TLS handshakes

SYNOPSIS
     #include <tls.h>

     int
     tls_config_set_session_fd(struct tls_config *config, int session_fd);

     int
     tls_config_set_session_id(struct tls_config *config,
	 const unsigned char *session_id, size_t len);

     int
     tls_config_set_session_lifetime(struct tls_config *config, int lifetime);

     int
     tls_config_add_ticket_key(struct tls_config *config, uint32_t keyrev,
	 unsigned char *key, size_t keylen);

DESCRIPTION
     tls_config_set_session_fd() sets a file descriptor to  be	used  to  manage
     data  for	TLS sessions (client only).  The given file descriptor must be a
     regular file and be owned by the current user, with permissions  being  re-
     stricted to only allow the owner to read and write the file (0600).  If the
     file  has	a  non-zero length, the client will attempt to read session data
     from this file and resume the previous TLS session with the server.  Upon a
     successful handshake the file will be updated with current session data, if
     available.  The caller is responsible for closing this file descriptor, af-
     ter all TLS contexts that have been configured to use it  have  been  freed
     via tls_free().

     tls_config_set_session_id()  sets	the session identifier that will be used
     by the TLS server when sessions are enabled (server only).   By  default  a
     random value is used.

     tls_config_set_session_lifetime() sets the lifetime to be used for TLS ses-
     sions  (server only).  Session support is disabled if a lifetime of zero is
     specified, which is the default.

     tls_config_add_ticket_key() adds a key used for the encryption and  authen-
     tication  of  TLS tickets (server only).  By default keys are generated and
     rotated automatically based on their lifetime.  This function  should  only
     be  used  to  synchronise	ticket encryption key across multiple processes.
     Re-adding a known key will result in an error, unless it is  the  most  re-
     cently added key.

RETURN VALUES
     These functions return 0 on success or -1 on error.

SEE ALSO
     tls_accept_socket(3),	 tls_config_set_protocols(3),	    tls_init(3),
     tls_load_file(3), tls_server(3)

HISTORY
     tls_config_set_session_id(), tls_config_set_session_lifetime() and tls_con-
     fig_add_ticket_key() appeared in OpenBSD 6.1.

     tls_config_set_session_fd() appeared in OpenBSD 6.3.

AUTHORS
     Claudio Jeker <claudio@openbsd.org>
     Joel Sing <jsing@openbsd.org>

FreeBSD ports 15.quarterly	February 10, 2018   TLS_CONFIG_SET_SESSION_ID(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=tls_config_set_session_fd&sektion=3&manpath=FreeBSD+Ports+15.1.quarterly>

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