Loading crypto/bio/bio.h +1 −0 Original line number Diff line number Diff line Loading @@ -474,6 +474,7 @@ size_t BIO_ctrl_wpending(BIO *b); #define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL) #define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2) #define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL) #define BIO_set_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL) /* macros with inappropriate type -- but ...pending macros use int too: */ #define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL) #define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL) Loading doc/crypto/BIO_f_ssl.pod +140 −2 Original line number Diff line number Diff line Loading @@ -30,6 +30,8 @@ BIO_ssl_shutdown - SSL BIO int BIO_ssl_copy_session_id(BIO *to,BIO *from); void BIO_ssl_shutdown(BIO *bio); #define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL) =head1 DESCRIPTION BIO_f_ssl() returns the SSL BIO method. This is a filter BIO which Loading @@ -37,7 +39,8 @@ is a wrapper round the OpenSSL SSL routines adding a BIO "flavour" to SSL I/O. I/O performed on an SSL BIO communicates using the SSL protocol with the SSLs read and write BIOs. the SSLs read and write BIOs. If an SSL connection is not established then an attempt is made to establish one on the first I/O call. If a BIO is appended to an SSL BIO using BIO_push() it is automatically used as the SSL BIOs read and write BIOs. Loading Loading @@ -91,6 +94,14 @@ chain B<bio>. It does this by locating the SSL BIO in the chain and calling SSL_shutdown() on its internal SSL pointer. BIO_do_handshake() attempts to complete an SSL handshake on the supplied BIO and establish the SSL connection. It returns 1 if the connection was established successfully. A zero or negative value is returned if the connection could not be established, the call BIO_should_retry() should be used for non blocking connect BIOs to determine if the call should be retried. If an SSL connection has already been established this call has no effect. =head1 NOTES SSL BIOs are exceptional in that if the underlying transport Loading @@ -109,6 +120,10 @@ BIOs the servers name and port can be set using BIO_set_host() on the BIO returned by BIO_new_ssl_connect() without having to locate the connect BIO first. Applications do not have to call BIO_do_handshake() but may wish to do so to separate the handshake process from other I/O processing. =head1 RETURN VALUES TBA Loading @@ -129,6 +144,10 @@ unencrypted example in L<BIO_s_connect(3)|BIO_s_connect(3)>. ERR_load_SSL_strings(); OpenSSL_add_all_algorithms(); /* We would seed the PRNG here if the platform didn't * do it automatically */ ctx = SSL_CTX_new(SSLv23_client_method()); /* We'd normally set some stuff like the verify paths and Loading Loading @@ -159,6 +178,12 @@ unencrypted example in L<BIO_s_connect(3)|BIO_s_connect(3)>. /* whatever ... */ } if(BIO_do_handshake(sbio) <= 0) { fprintf(stderr, "Error establishing SSL connection\n"); ERR_print_errors_fp(stderr); /* whatever ... */ } /* Could examine ssl here to get connection info */ BIO_puts(sbio, "GET / HTTP/1.0\n\n"); Loading @@ -170,6 +195,119 @@ unencrypted example in L<BIO_s_connect(3)|BIO_s_connect(3)>. BIO_free_all(sbio); BIO_free(out); Here is a simple server example. It makes use of a buffering BIO to allow lines to be read from the SSL BIO using BIO_gets. It creates a pseudo web page containing the actual request from a client and also echoes the request to standard output. BIO *sbio, *bbio, *acpt, *out; int len; char tmpbuf[1024]; SSL_CTX *ctx; SSL *ssl; ERR_load_crypto_strings(); ERR_load_SSL_strings(); OpenSSL_add_all_algorithms(); /* Might seed PRNG here */ ctx = SSL_CTX_new(SSLv23_server_method()); if (!SSL_CTX_use_certificate_file(ctx,"server.pem",SSL_FILETYPE_PEM) || !SSL_CTX_use_PrivateKey_file(ctx,"server.pem",SSL_FILETYPE_PEM) || !SSL_CTX_check_private_key(ctx)) { fprintf(stderr, "Error setting up SSL_CTX\n"); ERR_print_errors_fp(stderr); return 0; } /* Might do other things here like setting verify locations and * DH and/or RSA temporary key callbacks */ /* New SSL BIO setup as server */ sbio=BIO_new_ssl(ctx,0); BIO_get_ssl(sbio, &ssl); if(!ssl) { fprintf(stderr, "Can't locate SSL pointer\n"); /* whatever ... */ } /* Don't want any retries */ SSL_set_mode(ssl, SSL_MODE_AUTO_RETRY); /* Create the buffering BIO */ bbio = BIO_new(BIO_f_buffer()); /* Add to chain */ sbio = BIO_push(bbio, sbio); acpt=BIO_new_accept("4433"); /* By doing this when a new connection is established * we automatically have sbio inserted into it. The * BIO chain is now 'swallowed' by the accept BIO and * will be freed when the accept BIO is freed. */ BIO_set_accept_bios(acpt,sbio); out = BIO_new_fp(stdout, BIO_NOCLOSE); /* Setup accept BIO */ if(BIO_do_accept(acpt) <= 0) { fprintf(stderr, "Error setting up accept BIO\n"); ERR_print_errors_fp(stderr); return 0; } /* Now wait for incoming connection */ if(BIO_do_accept(acpt) <= 0) { fprintf(stderr, "Error in connection\n"); ERR_print_errors_fp(stderr); return 0; } /* We only want one connection so remove and free * accept BIO */ sbio = BIO_pop(acpt); BIO_free_all(acpt); if(BIO_do_handshake(sbio) <= 0) { fprintf(stderr, "Error in SSL handshake\n"); ERR_print_errors_fp(stderr); return 0; } BIO_puts(sbio, "HTTP/1.0 200 OK\r\nContent-type: text/html\r\n\r\n"); BIO_puts(sbio, "<pre>\r\nConnection Established\r\nRequest headers:\r\n"); BIO_puts(sbio, "--------------------------------------------------\r\n"); for(;;) { len = BIO_gets(sbio, tmpbuf, 1024); if(len <= 0) break; BIO_write(sbio, tmpbuf, len); BIO_write(out, tmpbuf, len); /* Look for blank line signifying end of headers*/ if((tmpbuf[0] == '\r') || (tmpbuf[0] == '\n')) break; } BIO_puts(sbio, "--------------------------------------------------\r\n"); BIO_puts(sbio, "</pre>\r\n"); /* Since there is a buffering BIO present we had better flush it */ BIO_flush(sbio); BIO_free_all(sbio); =head1 SEE ALSO TBA doc/crypto/BIO_s_accept.pod +3 −1 Original line number Diff line number Diff line Loading @@ -75,7 +75,9 @@ BIO_set_nbio_accept() sets the accept socket to blocking mode BIO_set_accept_bios() can be used to set a chain of BIOs which will be duplicated and prepended to the chain when an incoming connection is received. This is useful if, for example, a buffering BIO is required for each connection. buffering or SSL BIO is required for each connection. The chain of BIOs must not be freed after this call, they will be automatically freed when the accept BIO is freed. BIO_set_bind_mode() and BIO_get_bind_mode() set and retrieve the current bind mode. If BIO_BIND_NORMAL (the default) is set Loading doc/crypto/BIO_s_bio.pod +11 −4 Original line number Diff line number Diff line Loading @@ -2,10 +2,10 @@ =head1 NAME BIO_s_bio, BIO_make_bio_pair, BIO_destroy_bio_pair, BIO_set_write_buf_size, BIO_get_write_buf_size, BIO_new_bio_pair, BIO_get_write_guarantee, BIO_ctrl_get_write_guarantee, BIO_get_read_request, BIO_ctrl_get_read_request, BIO_ctrl_reset_read_request - BIO pair BIO BIO_s_bio, BIO_make_bio_pair, BIO_destroy_bio_pair, BIO_set_shutdown_wr, BIO_set_write_buf_size, BIO_get_write_buf_size, BIO_new_bio_pair, BIO_get_write_guarantee, BIO_ctrl_get_write_guarantee, BIO_get_read_request, BIO_ctrl_get_read_request, BIO_ctrl_reset_read_request - BIO pair BIO =head1 SYNOPSIS Loading @@ -16,6 +16,8 @@ BIO_ctrl_reset_read_request - BIO pair BIO #define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2) #define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL) #define BIO_set_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL) #define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL) #define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL) Loading Loading @@ -60,6 +62,11 @@ BIO_make_bio_pair() joins two separate BIOs into a connected pair. BIO_destroy_pair() destroys the association between two connected BIOs. Freeing up any half of the pair will automatically destroy the association. BIO_set_shutdown_wr() is used to close down a BIO B<b>. After this call no further writes on BIO B<b> are allowed (they will return an error). Reads on the other half of the pair will return any pending data or EOF when all pending data has been read. BIO_set_write_buf_size() sets the write buffer size of BIO B<b> to B<size>. If the size is not initialized a default value is used. This is currently 17K, sufficient for a maximum size TLS record. Loading Loading
crypto/bio/bio.h +1 −0 Original line number Diff line number Diff line Loading @@ -474,6 +474,7 @@ size_t BIO_ctrl_wpending(BIO *b); #define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL) #define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2) #define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL) #define BIO_set_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL) /* macros with inappropriate type -- but ...pending macros use int too: */ #define BIO_get_write_guarantee(b) (int)BIO_ctrl(b,BIO_C_GET_WRITE_GUARANTEE,0,NULL) #define BIO_get_read_request(b) (int)BIO_ctrl(b,BIO_C_GET_READ_REQUEST,0,NULL) Loading
doc/crypto/BIO_f_ssl.pod +140 −2 Original line number Diff line number Diff line Loading @@ -30,6 +30,8 @@ BIO_ssl_shutdown - SSL BIO int BIO_ssl_copy_session_id(BIO *to,BIO *from); void BIO_ssl_shutdown(BIO *bio); #define BIO_do_handshake(b) BIO_ctrl(b,BIO_C_DO_STATE_MACHINE,0,NULL) =head1 DESCRIPTION BIO_f_ssl() returns the SSL BIO method. This is a filter BIO which Loading @@ -37,7 +39,8 @@ is a wrapper round the OpenSSL SSL routines adding a BIO "flavour" to SSL I/O. I/O performed on an SSL BIO communicates using the SSL protocol with the SSLs read and write BIOs. the SSLs read and write BIOs. If an SSL connection is not established then an attempt is made to establish one on the first I/O call. If a BIO is appended to an SSL BIO using BIO_push() it is automatically used as the SSL BIOs read and write BIOs. Loading Loading @@ -91,6 +94,14 @@ chain B<bio>. It does this by locating the SSL BIO in the chain and calling SSL_shutdown() on its internal SSL pointer. BIO_do_handshake() attempts to complete an SSL handshake on the supplied BIO and establish the SSL connection. It returns 1 if the connection was established successfully. A zero or negative value is returned if the connection could not be established, the call BIO_should_retry() should be used for non blocking connect BIOs to determine if the call should be retried. If an SSL connection has already been established this call has no effect. =head1 NOTES SSL BIOs are exceptional in that if the underlying transport Loading @@ -109,6 +120,10 @@ BIOs the servers name and port can be set using BIO_set_host() on the BIO returned by BIO_new_ssl_connect() without having to locate the connect BIO first. Applications do not have to call BIO_do_handshake() but may wish to do so to separate the handshake process from other I/O processing. =head1 RETURN VALUES TBA Loading @@ -129,6 +144,10 @@ unencrypted example in L<BIO_s_connect(3)|BIO_s_connect(3)>. ERR_load_SSL_strings(); OpenSSL_add_all_algorithms(); /* We would seed the PRNG here if the platform didn't * do it automatically */ ctx = SSL_CTX_new(SSLv23_client_method()); /* We'd normally set some stuff like the verify paths and Loading Loading @@ -159,6 +178,12 @@ unencrypted example in L<BIO_s_connect(3)|BIO_s_connect(3)>. /* whatever ... */ } if(BIO_do_handshake(sbio) <= 0) { fprintf(stderr, "Error establishing SSL connection\n"); ERR_print_errors_fp(stderr); /* whatever ... */ } /* Could examine ssl here to get connection info */ BIO_puts(sbio, "GET / HTTP/1.0\n\n"); Loading @@ -170,6 +195,119 @@ unencrypted example in L<BIO_s_connect(3)|BIO_s_connect(3)>. BIO_free_all(sbio); BIO_free(out); Here is a simple server example. It makes use of a buffering BIO to allow lines to be read from the SSL BIO using BIO_gets. It creates a pseudo web page containing the actual request from a client and also echoes the request to standard output. BIO *sbio, *bbio, *acpt, *out; int len; char tmpbuf[1024]; SSL_CTX *ctx; SSL *ssl; ERR_load_crypto_strings(); ERR_load_SSL_strings(); OpenSSL_add_all_algorithms(); /* Might seed PRNG here */ ctx = SSL_CTX_new(SSLv23_server_method()); if (!SSL_CTX_use_certificate_file(ctx,"server.pem",SSL_FILETYPE_PEM) || !SSL_CTX_use_PrivateKey_file(ctx,"server.pem",SSL_FILETYPE_PEM) || !SSL_CTX_check_private_key(ctx)) { fprintf(stderr, "Error setting up SSL_CTX\n"); ERR_print_errors_fp(stderr); return 0; } /* Might do other things here like setting verify locations and * DH and/or RSA temporary key callbacks */ /* New SSL BIO setup as server */ sbio=BIO_new_ssl(ctx,0); BIO_get_ssl(sbio, &ssl); if(!ssl) { fprintf(stderr, "Can't locate SSL pointer\n"); /* whatever ... */ } /* Don't want any retries */ SSL_set_mode(ssl, SSL_MODE_AUTO_RETRY); /* Create the buffering BIO */ bbio = BIO_new(BIO_f_buffer()); /* Add to chain */ sbio = BIO_push(bbio, sbio); acpt=BIO_new_accept("4433"); /* By doing this when a new connection is established * we automatically have sbio inserted into it. The * BIO chain is now 'swallowed' by the accept BIO and * will be freed when the accept BIO is freed. */ BIO_set_accept_bios(acpt,sbio); out = BIO_new_fp(stdout, BIO_NOCLOSE); /* Setup accept BIO */ if(BIO_do_accept(acpt) <= 0) { fprintf(stderr, "Error setting up accept BIO\n"); ERR_print_errors_fp(stderr); return 0; } /* Now wait for incoming connection */ if(BIO_do_accept(acpt) <= 0) { fprintf(stderr, "Error in connection\n"); ERR_print_errors_fp(stderr); return 0; } /* We only want one connection so remove and free * accept BIO */ sbio = BIO_pop(acpt); BIO_free_all(acpt); if(BIO_do_handshake(sbio) <= 0) { fprintf(stderr, "Error in SSL handshake\n"); ERR_print_errors_fp(stderr); return 0; } BIO_puts(sbio, "HTTP/1.0 200 OK\r\nContent-type: text/html\r\n\r\n"); BIO_puts(sbio, "<pre>\r\nConnection Established\r\nRequest headers:\r\n"); BIO_puts(sbio, "--------------------------------------------------\r\n"); for(;;) { len = BIO_gets(sbio, tmpbuf, 1024); if(len <= 0) break; BIO_write(sbio, tmpbuf, len); BIO_write(out, tmpbuf, len); /* Look for blank line signifying end of headers*/ if((tmpbuf[0] == '\r') || (tmpbuf[0] == '\n')) break; } BIO_puts(sbio, "--------------------------------------------------\r\n"); BIO_puts(sbio, "</pre>\r\n"); /* Since there is a buffering BIO present we had better flush it */ BIO_flush(sbio); BIO_free_all(sbio); =head1 SEE ALSO TBA
doc/crypto/BIO_s_accept.pod +3 −1 Original line number Diff line number Diff line Loading @@ -75,7 +75,9 @@ BIO_set_nbio_accept() sets the accept socket to blocking mode BIO_set_accept_bios() can be used to set a chain of BIOs which will be duplicated and prepended to the chain when an incoming connection is received. This is useful if, for example, a buffering BIO is required for each connection. buffering or SSL BIO is required for each connection. The chain of BIOs must not be freed after this call, they will be automatically freed when the accept BIO is freed. BIO_set_bind_mode() and BIO_get_bind_mode() set and retrieve the current bind mode. If BIO_BIND_NORMAL (the default) is set Loading
doc/crypto/BIO_s_bio.pod +11 −4 Original line number Diff line number Diff line Loading @@ -2,10 +2,10 @@ =head1 NAME BIO_s_bio, BIO_make_bio_pair, BIO_destroy_bio_pair, BIO_set_write_buf_size, BIO_get_write_buf_size, BIO_new_bio_pair, BIO_get_write_guarantee, BIO_ctrl_get_write_guarantee, BIO_get_read_request, BIO_ctrl_get_read_request, BIO_ctrl_reset_read_request - BIO pair BIO BIO_s_bio, BIO_make_bio_pair, BIO_destroy_bio_pair, BIO_set_shutdown_wr, BIO_set_write_buf_size, BIO_get_write_buf_size, BIO_new_bio_pair, BIO_get_write_guarantee, BIO_ctrl_get_write_guarantee, BIO_get_read_request, BIO_ctrl_get_read_request, BIO_ctrl_reset_read_request - BIO pair BIO =head1 SYNOPSIS Loading @@ -16,6 +16,8 @@ BIO_ctrl_reset_read_request - BIO pair BIO #define BIO_make_bio_pair(b1,b2) (int)BIO_ctrl(b1,BIO_C_MAKE_BIO_PAIR,0,b2) #define BIO_destroy_bio_pair(b) (int)BIO_ctrl(b,BIO_C_DESTROY_BIO_PAIR,0,NULL) #define BIO_set_shutdown_wr(b) (int)BIO_ctrl(b, BIO_C_SHUTDOWN_WR, 0, NULL) #define BIO_set_write_buf_size(b,size) (int)BIO_ctrl(b,BIO_C_SET_WRITE_BUF_SIZE,size,NULL) #define BIO_get_write_buf_size(b,size) (size_t)BIO_ctrl(b,BIO_C_GET_WRITE_BUF_SIZE,size,NULL) Loading Loading @@ -60,6 +62,11 @@ BIO_make_bio_pair() joins two separate BIOs into a connected pair. BIO_destroy_pair() destroys the association between two connected BIOs. Freeing up any half of the pair will automatically destroy the association. BIO_set_shutdown_wr() is used to close down a BIO B<b>. After this call no further writes on BIO B<b> are allowed (they will return an error). Reads on the other half of the pair will return any pending data or EOF when all pending data has been read. BIO_set_write_buf_size() sets the write buffer size of BIO B<b> to B<size>. If the size is not initialized a default value is used. This is currently 17K, sufficient for a maximum size TLS record. Loading
