SSL_CTX_set_client_CA_list - SSL_CTX_set_client_CA_list, SSL_set_client_CA_list, set list of CAs sent to the client when requesting a client certificate
#include <openssl/ssl.h> void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *list); void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *list); int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *cacert); int SSL_add_client_CA(SSL *ssl, X509 *cacert);
OpenSSL SSL_CTX_set_client_CA_list(3openssl) NAME SSL_CTX_set_client_CA_list, SSL_set_client_CA_list, SSL_CTX_add_client_CA, SSL_add_client_CA - set list of CAs sent to the client when requesting a client certificate SYNOPSIS #include <openssl/ssl.h> void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *list); void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *list); int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *cacert); int SSL_add_client_CA(SSL *ssl, X509 *cacert); DESCRIPTION SSL_CTX_set_client_CA_list() sets the list of CAs sent to the client when requesting a client certificate for ctx. SSL_set_client_CA_list() sets the list of CAs sent to the client when requesting a client certificate for the chosen ssl, overriding the setting valid for ssl's SSL_CTX object. SSL_CTX_add_client_CA() adds the CA name extracted from cacert to the list of CAs sent to the client when requesting a client certificate for ctx. SSL_add_client_CA() adds the CA name extracted from cacert to the list of CAs sent to the client when requesting a client certificate for the chosen ssl, overriding the setting valid for ssl's SSL_CTX object. ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+--------------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+--------------------------+ |Availability | library/security/openssl | +---------------+--------------------------+ |Stability | Pass-through uncommitted | +---------------+--------------------------+ NOTES When a TLS/SSL server requests a client certificate (see SSL_CTX_set_verify(3)), it sends a list of CAs, for which it will accept certificates, to the client. This list must explicitly be set using SSL_CTX_set_client_CA_list() for ctx and SSL_set_client_CA_list() for the specific ssl. The list specified overrides the previous setting. The CAs listed do not become trusted (list only contains the names, not the complete certificates); use SSL_CTX_load_verify_locations(3) to additionally load them for verification. If the list of acceptable CAs is compiled in a file, the SSL_load_client_CA_file(3) function can be used to help importing the necessary data. SSL_CTX_add_client_CA() and SSL_add_client_CA() can be used to add additional items the list of client CAs. If no list was specified before using SSL_CTX_set_client_CA_list() or SSL_set_client_CA_list(), a new client CA list for ctx or ssl (as appropriate) is opened. These functions are only useful for TLS/SSL servers. Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://www.openssl.org/source/openssl-1.0.2ze.tar.gz. Further information about this software can be found on the open source community website at https://www.openssl.org/. RETURN VALUES SSL_CTX_set_client_CA_list() and SSL_set_client_CA_list() do not return diagnostic information. SSL_CTX_add_client_CA() and SSL_add_client_CA() have the following return values: 0 A failure while manipulating the STACK_OF(X509_NAME) object occurred or the X509_NAME could not be extracted from cacert. Check the error stack to find out the reason. 1 The operation succeeded. EXAMPLES Scan all certificates in CAfile and list them as acceptable CAs: SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile)); SEE ALSO ssl(3), SSL_get_client_CA_list(3), SSL_load_client_CA_file(3), SSL_CTX_load_verify_locations(3) 1.0.2ze 2022-05-03 SSL_CTX_set_client_CA_list(3openssl)