| gnutls_certificate_set_retrieve_function3(3) | gnutls | gnutls_certificate_set_retrieve_function3(3) |
gnutls_certificate_set_retrieve_function3 - API function
#include <gnutls/abstract.h>
void gnutls_certificate_set_retrieve_function3(gnutls_certificate_credentials_t cred, gnutls_certificate_retrieve_function3 * func);
This function sets a callback to be called in order to retrieve the certificate and OCSP responses to be used in the handshake. func will be called only if the peer requests a certificate either during handshake or during post-handshake authentication.
The callback's function prototype is defined in `abstract.h': int (*callback)(gnutls_session_t, const struct gnutls_cert_retr_st *info, gnutls_pcert_st **certs, unsigned int *pcert_length, gnutls_datum_t **ocsp, unsigned int *ocsp_length, gnutls_privkey_t * pkey, unsigned int *flags);
The info field of the callback contains:
req_ca_dn which is a list with the CA names that the server considers
trusted. This is a hint and typically the client should send a certificate
that is signed by one of these CAs. These names, when available, are DER
encoded. To get a more meaningful value use the function
gnutls_x509_rdn_get().
pk_algos contains a list with server's acceptable public key
algorithms. The certificate returned should support the server's given
algorithms.
The callback should fill-in the following values.
pcert should contain an allocated list of certificates and public
keys.
pcert_length is the size of the previous list.
ocsp should contain an allocated list of OCSP responses.
ocsp_length is the size of the previous list.
pkey is the private key.
If flags in the callback are set to GNUTLS_CERT_RETR_DEINIT_ALL then all provided values must be allocated using gnutls_malloc(), and will be released by gnutls; otherwise they will not be touched by gnutls.
The callback function should set the certificate and OCSP response list to be sent, and return 0 on success. If no certificates are available, the pcert_length and ocsp_length should be set to zero. The return value (-1) indicates error and the handshake will be terminated. If both certificates are set in the credentials and a callback is available, the callback takes predence.
3.6.3
Report bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org
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| 3.6.7 | gnutls |