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91 .tm Index:\\$1\t\\n%\t"\\$2"
96 .TH SSL_CTX_set_client_CA_list 3 "0.9.7d" "2/Sep/2004" "OpenSSL"
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191 SSL_CTX_set_client_CA_list, SSL_set_client_CA_list, SSL_CTX_add_client_CA,
192 SSL_add_client_CA \- set list of CAs sent to the client when requesting a
197 \& #include <openssl/ssl.h>
199 \& void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *list);
200 \& void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *list);
201 \& int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *cacert);
202 \& int SSL_add_client_CA(SSL *ssl, X509 *cacert);
205 \fISSL_CTX_set_client_CA_list()\fR sets the \fBlist\fR of CAs sent to the client when
206 requesting a client certificate for \fBctx\fR.
208 \fISSL_set_client_CA_list()\fR sets the \fBlist\fR of CAs sent to the client when
209 requesting a client certificate for the chosen \fBssl\fR, overriding the
210 setting valid for \fBssl\fR's SSL_CTX object.
212 \fISSL_CTX_add_client_CA()\fR adds the CA name extracted from \fBcacert\fR to the
213 list of CAs sent to the client when requesting a client certificate for
216 \fISSL_add_client_CA()\fR adds the CA name extracted from \fBcacert\fR to the
217 list of CAs sent to the client when requesting a client certificate for
218 the chosen \fBssl\fR, overriding the setting valid for \fBssl\fR's SSL_CTX object.
220 When a TLS/SSL server requests a client certificate (see
221 \fBSSL_CTX_set_verify_options()\fR), it sends a list of CAs, for which
222 it will accept certificates, to the client.
224 This list must explicitly be set using \fISSL_CTX_set_client_CA_list()\fR for
225 \fBctx\fR and \fISSL_set_client_CA_list()\fR for the specific \fBssl\fR. The list
226 specified overrides the previous setting. The CAs listed do not become
227 trusted (\fBlist\fR only contains the names, not the complete certificates); use
228 SSL_CTX_load_verify_locations(3)
229 to additionally load them for verification.
231 If the list of acceptable CAs is compiled in a file, the
232 SSL_load_client_CA_file(3)
233 function can be used to help importing the necessary data.
235 \fISSL_CTX_add_client_CA()\fR and \fISSL_add_client_CA()\fR can be used to add additional
236 items the list of client CAs. If no list was specified before using
237 \fISSL_CTX_set_client_CA_list()\fR or \fISSL_set_client_CA_list()\fR, a new client
238 CA list for \fBctx\fR or \fBssl\fR (as appropriate) is opened.
240 These functions are only useful for TLS/SSL servers.
242 \fISSL_CTX_set_client_CA_list()\fR and \fISSL_set_client_CA_list()\fR do not return
243 diagnostic information.
245 \fISSL_CTX_add_client_CA()\fR and \fISSL_add_client_CA()\fR have the following return
248 The operation succeeded.
250 A failure while manipulating the \fI\s-1STACK_OF\s0\fR\|(X509_NAME) object occurred or
251 the X509_NAME could not be extracted from \fBcacert\fR. Check the error stack
252 to find out the reason.
254 Scan all certificates in \fBCAfile\fR and list them as acceptable CAs:
257 \& SSL_CTX_set_client_CA_list(ctx,SSL_load_client_CA_file(CAfile));
261 SSL_get_client_CA_list(3),
262 SSL_load_client_CA_file(3),
263 SSL_CTX_load_verify_locations(3)
266 .IX Title "SSL_CTX_set_client_CA_list 3"
267 .IX Name "SSL_CTX_set_client_CA_list, SSL_set_client_CA_list, SSL_CTX_add_client_CA,
268 SSL_add_client_CA - set list of CAs sent to the client when requesting a
273 .IX Header "SYNOPSIS"
275 .IX Header "DESCRIPTION"
279 .IX Header "RETURN VALUES"
285 .IX Header "EXAMPLES"
287 .IX Header "SEE ALSO"