X-Git-Url: https://git.openssl.org/gitweb/?a=blobdiff_plain;f=doc%2Fssl%2Fssl.pod;h=242087e691e35a102174de7d376b1f132fa59ed2;hb=8aa556e1c3b49274ccae579cb584eb5b702a3b0e;hp=5f9ec8d9510d4ba95caca4d032abdaddc30a2e31;hpb=bb075f883356589425b7e57f788c7498a83b0219;p=openssl.git

diff --git a/doc/ssl/ssl.pod b/doc/ssl/ssl.pod
index 5f9ec8d951..242087e691 100644
--- a/doc/ssl/ssl.pod
+++ b/doc/ssl/ssl.pod
@@ -13,6 +13,69 @@ The OpenSSL B<ssl> library implements the Secure Sockets Layer (SSL v2/v3) and
 Transport Layer Security (TLS v1) protocols. It provides a rich API which is
 documented here.
 
+At first the library must be initialized; see
+L<SSL_library_init(3)|SSL_library_init(3)>.
+
+Then an B<SSL_CTX> object is created as a framework to establish
+TLS/SSL enabled connections (see L<SSL_CTX_new(3)|SSL_CTX_new(3)>).
+Various options regarding certificates, algorithms etc. can be set
+in this object.
+
+When a network connection has been created, it can be assigned to an
+B<SSL> object. After the B<SSL> object has been created using
+L<SSL_new(3)|SSL_new(3)>, L<SSL_set_fd(3)|SSL_set_fd(3)> or
+L<SSL_set_bio(3)|SSL_set_bio(3)> can be used to associate the network
+connection with the object.
+
+Then the TLS/SSL handshake is performed using
+L<SSL_accept(3)|SSL_accept(3)> or L<SSL_connect(3)|SSL_connect(3)>
+respectively.
+L<SSL_read(3)|SSL_read(3)> and L<SSL_write(3)|SSL_write(3)> are used
+to read and write data on the TLS/SSL connection.
+L<SSL_shutdown(3)|SSL_shutdown(3)> can be used to shut down the
+TLS/SSL connection.
+
+=head1 DATA STRUCTURES
+
+Currently the OpenSSL B<ssl> library functions deals with the following data
+structures:
+
+=over 4
+
+=item B<SSL_METHOD> (SSL Method)
+
+That's a dispatch structure describing the internal B<ssl> library
+methods/functions which implement the various protocol versions (SSLv1, SSLv2
+and TLSv1). It's needed to create an B<SSL_CTX>.
+
+=item B<SSL_CIPHER> (SSL Cipher)
+
+This structure holds the algorithm information for a particular cipher which
+are a core part of the SSL/TLS protocol. The available ciphers are configured
+on a B<SSL_CTX> basis and the actually used ones are then part of the
+B<SSL_SESSION>.
+
+=item B<SSL_CTX> (SSL Context)
+
+That's the global context structure which is created by a server or client
+once per program life-time and which holds mainly default values for the
+B<SSL> structures which are later created for the connections.
+
+=item B<SSL_SESSION> (SSL Session)
+
+This is a structure containing the current TLS/SSL session details for a
+connection: B<SSL_CIPHER>s, client and server certificates, keys, etc.
+
+=item B<SSL> (SSL Connection)
+
+That's the main SSL/TLS structure which is created by a server or client per
+established connection. This actually is the core structure in the SSL API.
+Under run-time the application usually deals with this structure which has
+links to mostly all other structures.
+
+=back
+
+
 =head1 HEADER FILES
 
 Currently the OpenSSL B<ssl> library provides the following C header files
@@ -55,46 +118,6 @@ it's already included by ssl.h>.
 
 =back
 
-=head1 DATA STRUCTURES
-
-Currently the OpenSSL B<ssl> library functions deals with the following data
-structures:
-
-=over 4
-
-=item B<SSL_METHOD> (SSL Method)
-
-That's a dispatch structure describing the internal B<ssl> library
-methods/functions which implement the various protocol versions (SSLv1, SSLv2
-and TLSv1). It's needed to create an B<SSL_CTX>.
-
-=item B<SSL_CIPHER> (SSL Cipher)
-
-This structure holds the algorithm information for a particular cipher which
-are a core part of the SSL/TLS protocol. The available ciphers are configured
-on a B<SSL_CTX> basis and the actually used ones are then part of the
-B<SSL_SESSION>.
-
-=item B<SSL_CTX> (SSL Context)
-
-That's the global context structure which is created by a server or client
-once per program life-time and which holds mainly default values for the
-B<SSL> structures which are later created for the connections.
-
-=item B<SSL_SESSION> (SSL Session)
-
-This is a structure containing the current SSL session details for a
-connection: B<SSL_CIPHER>s, client and server certificates, keys, etc.
-
-=item B<SSL> (SSL Connection)
-
-That's the main SSL/TLS structure which is created by a server or client per
-established connection. This actually is the core structure in the SSL API.
-Under run-time the application usually deals with this structure which has
-links to mostly all other structures.
-
-=back
-
 =head1 API FUNCTIONS
 
 Currently the OpenSSL B<ssl> library exports 214 API functions.
@@ -107,39 +130,39 @@ protocol methods defined in B<SSL_METHOD> structures.
 
 =over 4
 
-=item SSL_METHOD *B<SSLv2_client_method>(void);
+=item const SSL_METHOD *B<SSLv2_client_method>(void);
 
 Constructor for the SSLv2 SSL_METHOD structure for a dedicated client.
 
-=item SSL_METHOD *B<SSLv2_server_method>(void);
+=item const SSL_METHOD *B<SSLv2_server_method>(void);
 
 Constructor for the SSLv2 SSL_METHOD structure for a dedicated server.
 
-=item SSL_METHOD *B<SSLv2_method>(void);
+=item const SSL_METHOD *B<SSLv2_method>(void);
 
 Constructor for the SSLv2 SSL_METHOD structure for combined client and server.
 
-=item SSL_METHOD *B<SSLv3_client_method>(void);
+=item const SSL_METHOD *B<SSLv3_client_method>(void);
 
 Constructor for the SSLv3 SSL_METHOD structure for a dedicated client.
 
-=item SSL_METHOD *B<SSLv3_server_method>(void);
+=item const SSL_METHOD *B<SSLv3_server_method>(void);
 
 Constructor for the SSLv3 SSL_METHOD structure for a dedicated server.
 
-=item SSL_METHOD *B<SSLv3_method>(void);
+=item const SSL_METHOD *B<SSLv3_method>(void);
 
 Constructor for the SSLv3 SSL_METHOD structure for combined client and server.
 
-=item SSL_METHOD *B<TLSv1_client_method>(void);
+=item const SSL_METHOD *B<TLSv1_client_method>(void);
 
 Constructor for the TLSv1 SSL_METHOD structure for a dedicated client.
 
-=item SSL_METHOD *B<TLSv1_server_method>(void);
+=item const SSL_METHOD *B<TLSv1_server_method>(void);
 
 Constructor for the TLSv1 SSL_METHOD structure for a dedicated server.
 
-=item SSL_METHOD *B<TLSv1_method>(void);
+=item const SSL_METHOD *B<TLSv1_method>(void);
 
 Constructor for the TLSv1 SSL_METHOD structure for combined client and server.
 
@@ -163,7 +186,7 @@ Determine the number of bits in I<cipher>. Because of export crippled ciphers
 there are two bits: The bits the algorithm supports in general (stored to
 I<alg_bits>) and the bits which are actually used (the return value).
 
-=item char *B<SSL_CIPHER_get_name>(SSL_CIPHER *cipher);
+=item const char *B<SSL_CIPHER_get_name>(SSL_CIPHER *cipher);
 
 Return the internal name of I<cipher> as a string. These are the various
 strings defined by the I<SSL2_TXT_xxx>, I<SSL3_TXT_xxx> and I<TLS1_TXT_xxx>
@@ -190,7 +213,7 @@ protocol context defined in the B<SSL_CTX> structure.
 
 =item int B<SSL_CTX_add_session>(SSL_CTX *ctx, SSL_SESSION *c);
 
-=item int B<SSL_CTX_check_private_key>(SSL_CTX *ctx);
+=item int B<SSL_CTX_check_private_key>(const SSL_CTX *ctx);
 
 =item long B<SSL_CTX_ctrl>(SSL_CTX *ctx, int cmd, long larg, char *parg);
 
@@ -202,23 +225,27 @@ protocol context defined in the B<SSL_CTX> structure.
 
 =item X509_STORE *B<SSL_CTX_get_cert_store>(SSL_CTX *ctx);
 
-=item STACK *B<SSL_CTX_get_client_CA_list>(SSL_CTX *ctx);
+=item STACK *B<SSL_CTX_get_client_CA_list>(const SSL_CTX *ctx);
 
 =item int (*B<SSL_CTX_get_client_cert_cb>(SSL_CTX *ctx))(SSL *ssl, X509 **x509, EVP_PKEY **pkey);
 
-=item char *B<SSL_CTX_get_ex_data>(SSL_CTX *s, int idx);
+=item void B<SSL_CTX_get_default_read_ahead>(SSL_CTX *ctx);
+
+=item char *B<SSL_CTX_get_ex_data>(const SSL_CTX *s, int idx);
 
 =item int B<SSL_CTX_get_ex_new_index>(long argl, char *argp, int (*new_func);(void), int (*dup_func)(void), void (*free_func)(void))
 
 =item void (*B<SSL_CTX_get_info_callback>(SSL_CTX *ctx))(SSL *ssl, int cb, int ret);
 
-=item int B<SSL_CTX_get_quiet_shutdown>(SSL_CTX *ctx);
+=item int B<SSL_CTX_get_quiet_shutdown>(const SSL_CTX *ctx);
+
+=item void B<SSL_CTX_get_read_ahead>(SSL_CTX *ctx);
 
 =item int B<SSL_CTX_get_session_cache_mode>(SSL_CTX *ctx);
 
-=item long B<SSL_CTX_get_timeout>(SSL_CTX *ctx);
+=item long B<SSL_CTX_get_timeout>(const SSL_CTX *ctx);
 
-=item int (*B<SSL_CTX_get_verify_callback>(SSL_CTX *ctx))(int ok, X509_STORE_CTX *ctx);
+=item int (*B<SSL_CTX_get_verify_callback>(const SSL_CTX *ctx))(int ok, X509_STORE_CTX *ctx);
 
 =item int B<SSL_CTX_get_verify_mode>(SSL_CTX *ctx);
 
@@ -226,7 +253,7 @@ protocol context defined in the B<SSL_CTX> structure.
 
 =item long B<SSL_CTX_need_tmp_RSA>(SSL_CTX *ctx);
 
-=item SSL_CTX *B<SSL_CTX_new>(SSL_METHOD *meth);
+=item SSL_CTX *B<SSL_CTX_new>(const SSL_METHOD *meth);
 
 =item int B<SSL_CTX_remove_session>(SSL_CTX *ctx, SSL_SESSION *c);
 
@@ -276,7 +303,7 @@ protocol context defined in the B<SSL_CTX> structure.
 
 =item void B<SSL_CTX_set_cert_store>(SSL_CTX *ctx, X509_STORE *cs);
 
-=item void B<SSL_CTX_set_cert_verify_cb>(SSL_CTX *ctx, int (*cb)(SSL_CTX *), char *arg)
+=item void B<SSL_CTX_set_cert_verify_cb>(SSL_CTX *ctx, int (*cb)(), char *arg)
 
 =item int B<SSL_CTX_set_cipher_list>(SSL_CTX *ctx, char *str);
 
@@ -294,13 +321,19 @@ protocol context defined in the B<SSL_CTX> structure.
 
 =item void B<SSL_CTX_set_info_callback>(SSL_CTX *ctx, void (*cb)(SSL *ssl, int cb, int ret));
 
+=item void B<SSL_CTX_set_msg_callback>(SSL_CTX *ctx, void (*cb)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg));
+
+=item void B<SSL_CTX_set_msg_callback_arg>(SSL_CTX *ctx, void *arg);
+
 =item void B<SSL_CTX_set_options>(SSL_CTX *ctx, unsigned long op);
 
 =item void B<SSL_CTX_set_quiet_shutdown>(SSL_CTX *ctx, int mode);
 
+=item void B<SSL_CTX_set_read_ahead>(SSL_CTX *ctx, int m);
+
 =item void B<SSL_CTX_set_session_cache_mode>(SSL_CTX *ctx, int mode);
 
-=item int B<SSL_CTX_set_ssl_version>(SSL_CTX *ctx, SSL_METHOD *meth);
+=item int B<SSL_CTX_set_ssl_version>(SSL_CTX *ctx, const SSL_METHOD *meth);
 
 =item void B<SSL_CTX_set_timeout>(SSL_CTX *ctx, long t);
 
@@ -324,7 +357,7 @@ appropriate size (using ???) and return it.
 
 long B<SSL_set_tmp_rsa_callback>(SSL *ssl, RSA *(*cb)(SSL *ssl, int export, int keylength));
 
-The same as L<"SSL_CTX_set_tmp_rsa_callback">, except it operates on an SSL
+The same as B<SSL_CTX_set_tmp_rsa_callback>, except it operates on an SSL
 session instead of a context.
 
 =item void B<SSL_CTX_set_verify>(SSL_CTX *ctx, int mode, int (*cb);(void))
@@ -347,6 +380,19 @@ session instead of a context.
 
 =item int B<SSL_CTX_use_certificate_file>(SSL_CTX *ctx, char *file, int type);
 
+=item X509 *B<SSL_CTX_get0_certificate>(const SSL_CTX *ctx);
+
+=item EVP_PKEY *B<SSL_CTX_get0_privatekey>(const SSL_CTX *ctx);
+
+=item void B<SSL_CTX_set_psk_client_callback>(SSL_CTX *ctx, unsigned int (*callback)(SSL *ssl, const char *hint, char *identity, unsigned int max_identity_len, unsigned char *psk, unsigned int max_psk_len));
+
+=item int B<SSL_CTX_use_psk_identity_hint>(SSL_CTX *ctx, const char *hint);
+
+=item void B<SSL_CTX_set_psk_server_callback>(SSL_CTX *ctx, unsigned int (*callback)(SSL *ssl, const char *identity, unsigned char *psk, int max_psk_len));
+
+
+
+
 =back
 
 =head2 DEALING WITH SESSIONS
@@ -356,27 +402,27 @@ sessions defined in the B<SSL_SESSION> structures.
 
 =over 4
 
-=item int B<SSL_SESSION_cmp>(SSL_SESSION *a, SSL_SESSION *b);
+=item int B<SSL_SESSION_cmp>(const SSL_SESSION *a, const SSL_SESSION *b);
 
 =item void B<SSL_SESSION_free>(SSL_SESSION *ss);
 
 =item char *B<SSL_SESSION_get_app_data>(SSL_SESSION *s);
 
-=item char *B<SSL_SESSION_get_ex_data>(SSL_SESSION *s, int idx);
+=item char *B<SSL_SESSION_get_ex_data>(const SSL_SESSION *s, int idx);
 
 =item int B<SSL_SESSION_get_ex_new_index>(long argl, char *argp, int (*new_func);(void), int (*dup_func)(void), void (*free_func)(void))
 
-=item long B<SSL_SESSION_get_time>(SSL_SESSION *s);
+=item long B<SSL_SESSION_get_time>(const SSL_SESSION *s);
 
-=item long B<SSL_SESSION_get_timeout>(SSL_SESSION *s);
+=item long B<SSL_SESSION_get_timeout>(const SSL_SESSION *s);
 
-=item unsigned long B<SSL_SESSION_hash>(SSL_SESSION *a);
+=item unsigned long B<SSL_SESSION_hash>(const SSL_SESSION *a);
 
 =item SSL_SESSION *B<SSL_SESSION_new>(void);
 
-=item int B<SSL_SESSION_print>(BIO *bp, SSL_SESSION *x);
+=item int B<SSL_SESSION_print>(BIO *bp, const SSL_SESSION *x);
 
-=item int B<SSL_SESSION_print_fp>(FILE *fp, SSL_SESSION *x);
+=item int B<SSL_SESSION_print_fp>(FILE *fp, const SSL_SESSION *x);
 
 =item void B<SSL_SESSION_set_app_data>(SSL_SESSION *s, char *a);
 
@@ -411,7 +457,7 @@ connection defined in the B<SSL> structure.
 
 =item char *B<SSL_alert_type_string_long>(int value);
 
-=item int B<SSL_check_private_key>(SSL *ssl);
+=item int B<SSL_check_private_key>(const SSL *ssl);
 
 =item void B<SSL_clear>(SSL *ssl);
 
@@ -419,7 +465,7 @@ connection defined in the B<SSL> structure.
 
 =item int B<SSL_connect>(SSL *ssl);
 
-=item void B<SSL_copy_session_id>(SSL *t, SSL *f);
+=item void B<SSL_copy_session_id>(SSL *t, const SSL *f);
 
 =item long B<SSL_ctrl>(SSL *ssl, int cmd, long larg, char *parg);
 
@@ -431,77 +477,77 @@ connection defined in the B<SSL> structure.
 
 =item void B<SSL_free>(SSL *ssl);
 
-=item SSL_CTX *B<SSL_get_SSL_CTX>(SSL *ssl);
+=item SSL_CTX *B<SSL_get_SSL_CTX>(const SSL *ssl);
 
 =item char *B<SSL_get_app_data>(SSL *ssl);
 
-=item X509 *B<SSL_get_certificate>(SSL *ssl);
+=item X509 *B<SSL_get_certificate>(const SSL *ssl);
 
-=item SSL_CIPHER *B<SSL_get_cipher>(SSL *ssl);
+=item const char *B<SSL_get_cipher>(const SSL *ssl);
 
-=item int B<SSL_get_cipher_bits>(SSL *ssl, int *alg_bits);
+=item int B<SSL_get_cipher_bits>(const SSL *ssl, int *alg_bits);
 
-=item char *B<SSL_get_cipher_list>(SSL *ssl, int n);
+=item char *B<SSL_get_cipher_list>(const SSL *ssl, int n);
 
-=item char *B<SSL_get_cipher_name>(SSL *ssl);
+=item char *B<SSL_get_cipher_name>(const SSL *ssl);
 
-=item char *B<SSL_get_cipher_version>(SSL *ssl);
+=item char *B<SSL_get_cipher_version>(const SSL *ssl);
 
-=item STACK *B<SSL_get_ciphers>(SSL *ssl);
+=item STACK *B<SSL_get_ciphers>(const SSL *ssl);
 
-=item STACK *B<SSL_get_client_CA_list>(SSL *ssl);
+=item STACK *B<SSL_get_client_CA_list>(const SSL *ssl);
 
 =item SSL_CIPHER *B<SSL_get_current_cipher>(SSL *ssl);
 
-=item long B<SSL_get_default_timeout>(SSL *ssl);
+=item long B<SSL_get_default_timeout>(const SSL *ssl);
 
-=item int B<SSL_get_error>(SSL *ssl, int i);
+=item int B<SSL_get_error>(const SSL *ssl, int i);
 
-=item char *B<SSL_get_ex_data>(SSL *ssl, int idx);
+=item char *B<SSL_get_ex_data>(const SSL *ssl, int idx);
 
 =item int B<SSL_get_ex_data_X509_STORE_CTX_idx>(void);
 
 =item int B<SSL_get_ex_new_index>(long argl, char *argp, int (*new_func);(void), int (*dup_func)(void), void (*free_func)(void))
 
-=item int B<SSL_get_fd>(SSL *ssl);
+=item int B<SSL_get_fd>(const SSL *ssl);
 
-=item void (*B<SSL_get_info_callback>(SSL *ssl);)(void)
+=item void (*B<SSL_get_info_callback>(const SSL *ssl);)()
 
-=item STACK *B<SSL_get_peer_cert_chain>(SSL *ssl);
+=item STACK *B<SSL_get_peer_cert_chain>(const SSL *ssl);
 
-=item X509 *B<SSL_get_peer_certificate>(SSL *ssl);
+=item X509 *B<SSL_get_peer_certificate>(const SSL *ssl);
 
-=item EVP_PKEY *B<SSL_get_privatekey>(SSL *ssl);
+=item EVP_PKEY *B<SSL_get_privatekey>(const SSL *ssl);
 
-=item int B<SSL_get_quiet_shutdown>(SSL *ssl);
+=item int B<SSL_get_quiet_shutdown>(const SSL *ssl);
 
-=item BIO *B<SSL_get_rbio>(SSL *ssl);
+=item BIO *B<SSL_get_rbio>(const SSL *ssl);
 
-=item int B<SSL_get_read_ahead>(SSL *ssl);
+=item int B<SSL_get_read_ahead>(const SSL *ssl);
 
-=item SSL_SESSION *B<SSL_get_session>(SSL *ssl);
+=item SSL_SESSION *B<SSL_get_session>(const SSL *ssl);
 
-=item char *B<SSL_get_shared_ciphers>(SSL *ssl, char *buf, int len);
+=item char *B<SSL_get_shared_ciphers>(const SSL *ssl, char *buf, int len);
 
-=item int B<SSL_get_shutdown>(SSL *ssl);
+=item int B<SSL_get_shutdown>(const SSL *ssl);
 
-=item SSL_METHOD *B<SSL_get_ssl_method>(SSL *ssl);
+=item const SSL_METHOD *B<SSL_get_ssl_method>(SSL *ssl);
 
-=item int B<SSL_get_state>(SSL *ssl);
+=item int B<SSL_get_state>(const SSL *ssl);
 
-=item long B<SSL_get_time>(SSL *ssl);
+=item long B<SSL_get_time>(const SSL *ssl);
 
-=item long B<SSL_get_timeout>(SSL *ssl);
+=item long B<SSL_get_timeout>(const SSL *ssl);
 
-=item int (*B<SSL_get_verify_callback>(SSL *ssl);)(void)
+=item int (*B<SSL_get_verify_callback>(const SSL *ssl))(int,X509_STORE_CTX *)
 
-=item int B<SSL_get_verify_mode>(SSL *ssl);
+=item int B<SSL_get_verify_mode>(const SSL *ssl);
 
-=item long B<SSL_get_verify_result>(SSL *ssl);
+=item long B<SSL_get_verify_result>(const SSL *ssl);
 
-=item char *B<SSL_get_version>(SSL *ssl);
+=item char *B<SSL_get_version>(const SSL *ssl);
 
-=item BIO *B<SSL_get_wbio>(SSL *ssl);
+=item BIO *B<SSL_get_wbio>(const SSL *ssl);
 
 =item int B<SSL_in_accept_init>(SSL *ssl);
 
@@ -521,11 +567,11 @@ connection defined in the B<SSL> structure.
 
 =item long B<SSL_num_renegotiations>(SSL *ssl);
 
-=item int B<SSL_peek>(SSL *ssl, char *buf, int num);
+=item int B<SSL_peek>(SSL *ssl, void *buf, int num);
 
-=item int B<SSL_pending>(SSL *ssl);
+=item int B<SSL_pending>(const SSL *ssl);
 
-=item int B<SSL_read>(SSL *ssl, char *buf, int num);
+=item int B<SSL_read>(SSL *ssl, void *buf, int num);
 
 =item int B<SSL_renegotiate>(SSL *ssl);
 
@@ -553,6 +599,10 @@ connection defined in the B<SSL> structure.
 
 =item void B<SSL_set_info_callback>(SSL *ssl, void (*cb);(void))
 
+=item void B<SSL_set_msg_callback>(SSL *ctx, void (*cb)(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg));
+
+=item void B<SSL_set_msg_callback_arg>(SSL *ctx, void *arg);
+
 =item void B<SSL_set_options>(SSL *ssl, unsigned long op);
 
 =item void B<SSL_set_quiet_shutdown>(SSL *ssl, int mode);
@@ -565,7 +615,7 @@ connection defined in the B<SSL> structure.
 
 =item void B<SSL_set_shutdown>(SSL *ssl, int mode);
 
-=item int B<SSL_set_ssl_method>(SSL *ssl, SSL_METHOD *meth);
+=item int B<SSL_set_ssl_method>(SSL *ssl, const SSL_METHOD *meth);
 
 =item void B<SSL_set_time>(SSL *ssl, long t);
 
@@ -579,11 +629,11 @@ connection defined in the B<SSL> structure.
 
 =item int B<SSL_shutdown>(SSL *ssl);
 
-=item int B<SSL_state>(SSL *ssl);
+=item int B<SSL_state>(const SSL *ssl);
 
-=item char *B<SSL_state_string>(SSL *ssl);
+=item char *B<SSL_state_string>(const SSL *ssl);
 
-=item char *B<SSL_state_string_long>(SSL *ssl);
+=item char *B<SSL_state_string_long>(const SSL *ssl);
 
 =item long B<SSL_total_renegotiations>(SSL *ssl);
 
@@ -605,25 +655,111 @@ connection defined in the B<SSL> structure.
 
 =item int B<SSL_use_certificate_file>(SSL *ssl, char *file, int type);
 
-=item int B<SSL_version>(SSL *ssl);
+=item int B<SSL_version>(const SSL *ssl);
+
+=item int B<SSL_want>(const SSL *ssl);
+
+=item int B<SSL_want_nothing>(const SSL *ssl);
+
+=item int B<SSL_want_read>(const SSL *ssl);
+
+=item int B<SSL_want_write>(const SSL *ssl);
+
+=item int B<SSL_want_x509_lookup>(const SSL *ssl);
 
-=item int B<SSL_want>(SSL *ssl);
+=item int B<SSL_write>(SSL *ssl, const void *buf, int num);
 
-=item int B<SSL_want_nothing>(SSL *ssl);
+=item void B<SSL_set_psk_client_callback>(SSL *ssl, unsigned int (*callback)(SSL *ssl, const char *hint, char *identity, unsigned int max_identity_len, unsigned char *psk, unsigned int max_psk_len));
 
-=item int B<SSL_want_read>(SSL *ssl);
+=item int B<SSL_use_psk_identity_hint>(SSL *ssl, const char *hint);
 
-=item int B<SSL_want_write>(SSL *ssl);
+=item void B<SSL_set_psk_server_callback>(SSL *ssl, unsigned int (*callback)(SSL *ssl, const char *identity, unsigned char *psk, int max_psk_len));
 
-=item int B<SSL_want_x509_lookup>(s);
+=item const char *B<SSL_get_psk_identity_hint>(SSL *ssl);
 
-=item int B<SSL_write>(SSL *ssl, char *buf, int num);
+=item const char *B<SSL_get_psk_identity>(SSL *ssl);
 
 =back
 
 =head1 SEE ALSO
 
-L<openssl(1)|openssl(1)>, L<crypto(3)|crypto(3)>
+L<openssl(1)|openssl(1)>, L<crypto(3)|crypto(3)>,
+L<SSL_accept(3)|SSL_accept(3)>, L<SSL_clear(3)|SSL_clear(3)>,
+L<SSL_connect(3)|SSL_connect(3)>,
+L<SSL_CIPHER_get_name(3)|SSL_CIPHER_get_name(3)>,
+L<SSL_COMP_add_compression_method(3)|SSL_COMP_add_compression_method(3)>,
+L<SSL_CTX_add_extra_chain_cert(3)|SSL_CTX_add_extra_chain_cert(3)>,
+L<SSL_CTX_add_session(3)|SSL_CTX_add_session(3)>,
+L<SSL_CTX_ctrl(3)|SSL_CTX_ctrl(3)>,
+L<SSL_CTX_flush_sessions(3)|SSL_CTX_flush_sessions(3)>,
+L<SSL_CTX_get_ex_new_index(3)|SSL_CTX_get_ex_new_index(3)>,
+L<SSL_CTX_get_verify_mode(3)|SSL_CTX_get_verify_mode(3)>,
+L<SSL_CTX_load_verify_locations(3)|SSL_CTX_load_verify_locations(3)>
+L<SSL_CTX_new(3)|SSL_CTX_new(3)>,
+L<SSL_CTX_sess_number(3)|SSL_CTX_sess_number(3)>,
+L<SSL_CTX_sess_set_cache_size(3)|SSL_CTX_sess_set_cache_size(3)>,
+L<SSL_CTX_sess_set_get_cb(3)|SSL_CTX_sess_set_get_cb(3)>,
+L<SSL_CTX_sessions(3)|SSL_CTX_sessions(3)>,
+L<SSL_CTX_set_cert_store(3)|SSL_CTX_set_cert_store(3)>,
+L<SSL_CTX_set_cert_verify_callback(3)|SSL_CTX_set_cert_verify_callback(3)>,
+L<SSL_CTX_set_cipher_list(3)|SSL_CTX_set_cipher_list(3)>,
+L<SSL_CTX_set_client_CA_list(3)|SSL_CTX_set_client_CA_list(3)>,
+L<SSL_CTX_set_client_cert_cb(3)|SSL_CTX_set_client_cert_cb(3)>,
+L<SSL_CTX_set_default_passwd_cb(3)|SSL_CTX_set_default_passwd_cb(3)>,
+L<SSL_CTX_set_generate_session_id(3)|SSL_CTX_set_generate_session_id(3)>,
+L<SSL_CTX_set_info_callback(3)|SSL_CTX_set_info_callback(3)>,
+L<SSL_CTX_set_max_cert_list(3)|SSL_CTX_set_max_cert_list(3)>,
+L<SSL_CTX_set_mode(3)|SSL_CTX_set_mode(3)>,
+L<SSL_CTX_set_msg_callback(3)|SSL_CTX_set_msg_callback(3)>,
+L<SSL_CTX_set_options(3)|SSL_CTX_set_options(3)>,
+L<SSL_CTX_set_quiet_shutdown(3)|SSL_CTX_set_quiet_shutdown(3)>,
+L<SSL_CTX_set_read_ahead(3)|SSL_CTX_set_read_ahead(3)>,
+L<SSL_CTX_set_session_cache_mode(3)|SSL_CTX_set_session_cache_mode(3)>,
+L<SSL_CTX_set_session_id_context(3)|SSL_CTX_set_session_id_context(3)>,
+L<SSL_CTX_set_ssl_version(3)|SSL_CTX_set_ssl_version(3)>,
+L<SSL_CTX_set_timeout(3)|SSL_CTX_set_timeout(3)>,
+L<SSL_CTX_set_tmp_rsa_callback(3)|SSL_CTX_set_tmp_rsa_callback(3)>,
+L<SSL_CTX_set_tmp_dh_callback(3)|SSL_CTX_set_tmp_dh_callback(3)>,
+L<SSL_CTX_set_verify(3)|SSL_CTX_set_verify(3)>,
+L<SSL_CTX_use_certificate(3)|SSL_CTX_use_certificate(3)>,
+L<SSL_alert_type_string(3)|SSL_alert_type_string(3)>,
+L<SSL_do_handshake(3)|SSL_do_handshake(3)>,
+L<SSL_get_SSL_CTX(3)|SSL_get_SSL_CTX(3)>,
+L<SSL_get_ciphers(3)|SSL_get_ciphers(3)>,
+L<SSL_get_client_CA_list(3)|SSL_get_client_CA_list(3)>,
+L<SSL_get_default_timeout(3)|SSL_get_default_timeout(3)>,
+L<SSL_get_error(3)|SSL_get_error(3)>,
+L<SSL_get_ex_data_X509_STORE_CTX_idx(3)|SSL_get_ex_data_X509_STORE_CTX_idx(3)>,
+L<SSL_get_ex_new_index(3)|SSL_get_ex_new_index(3)>,
+L<SSL_get_fd(3)|SSL_get_fd(3)>,
+L<SSL_get_peer_cert_chain(3)|SSL_get_peer_cert_chain(3)>,
+L<SSL_get_rbio(3)|SSL_get_rbio(3)>,
+L<SSL_get_session(3)|SSL_get_session(3)>,
+L<SSL_get_verify_result(3)|SSL_get_verify_result(3)>,
+L<SSL_get_version(3)|SSL_get_version(3)>,
+L<SSL_library_init(3)|SSL_library_init(3)>,
+L<SSL_load_client_CA_file(3)|SSL_load_client_CA_file(3)>,
+L<SSL_new(3)|SSL_new(3)>,
+L<SSL_pending(3)|SSL_pending(3)>,
+L<SSL_read(3)|SSL_read(3)>,
+L<SSL_rstate_string(3)|SSL_rstate_string(3)>,
+L<SSL_session_reused(3)|SSL_session_reused(3)>,
+L<SSL_set_bio(3)|SSL_set_bio(3)>,
+L<SSL_set_connect_state(3)|SSL_set_connect_state(3)>,
+L<SSL_set_fd(3)|SSL_set_fd(3)>,
+L<SSL_set_session(3)|SSL_set_session(3)>,
+L<SSL_set_shutdown(3)|SSL_set_shutdown(3)>,
+L<SSL_shutdown(3)|SSL_shutdown(3)>,
+L<SSL_state_string(3)|SSL_state_string(3)>,
+L<SSL_want(3)|SSL_want(3)>,
+L<SSL_write(3)|SSL_write(3)>,
+L<SSL_SESSION_free(3)|SSL_SESSION_free(3)>,
+L<SSL_SESSION_get_ex_new_index(3)|SSL_SESSION_get_ex_new_index(3)>,
+L<SSL_SESSION_get_time(3)|SSL_SESSION_get_time(3)>,
+L<d2i_SSL_SESSION(3)|d2i_SSL_SESSION(3)>,
+L<SSL_CTX_set_psk_client_callback(3)|SSL_CTX_set_psk_client_callback(3)>,
+L<SSL_CTX_use_psk_identity_hint(3)|SSL_CTX_use_psk_identity_hint(3)>,
+L<SSL_get_psk_identity(3)|SSL_get_psk_identity(3)>
 
 =head1 HISTORY