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KRB5_GET_CREDS(3) Library Functions Manual KRB5_GET_CREDS(3) NAME krb5_get_creds, krb5_get_creds_opt_add_options, krb5_get_creds_opt_alloc, krb5_get_creds_opt_free, krb5_get_creds_opt_set_enctype, krb5_get_creds_opt_set_impersonate, krb5_get_creds_opt_set_options, krb5_get_creds_opt_set_ticket -- get credentials from the KDC LIBRARY Kerberos 5 Library (libkrb5, -lkrb5) SYNOPSIS #include <krb5.h> krb5_error_code krb5_get_creds(krb5_context context, krb5_get_creds_opt opt, krb5_ccache ccache, krb5_const_principal inprinc, krb5_creds **out_creds); void krb5_get_creds_opt_add_options(krb5_context context, krb5_get_creds_opt opt, krb5_flags options); krb5_error_code krb5_get_creds_opt_alloc(krb5_context context, krb5_get_creds_opt *opt); void krb5_get_creds_opt_free(krb5_context context, krb5_get_creds_opt opt); void krb5_get_creds_opt_set_enctype(krb5_context context, krb5_get_creds_opt opt, krb5_enctype enctype); krb5_error_code krb5_get_creds_opt_set_impersonate(krb5_context context, krb5_get_creds_opt opt, krb5_const_principal self); void krb5_get_creds_opt_set_options(krb5_context context, krb5_get_creds_opt opt, krb5_flags options); krb5_error_code krb5_get_creds_opt_set_ticket(krb5_context context, krb5_get_creds_opt opt, const Ticket *ticket); DESCRIPTION krb5_get_creds() fetches credentials specified by opt by first looking in the ccache, and then it doesn't exists, fetch the credential from the KDC using the krbtgts in ccache. The credential is returned in out_creds and should be freed using the function krb5_free_creds(). The structure krb5_get_creds_opt controls the behavior of krb5_get_creds(). The structure is opaque to consumers that can set the content of the structure with accessors functions. All accessor functions make copies of the data that is passed into accessor func- tions, so external consumers free the memory before calling krb5_get_creds(). The structure krb5_get_creds_opt is allocated with krb5_get_creds_opt_alloc() and freed with krb5_get_creds_opt_free(). The free function also frees the content of the structure set by the accessor functions. krb5_get_creds_opt_add_options() and krb5_get_creds_opt_set_options() adds and sets options to the krb5_get_creds_opt structure . The possi- ble options to set are KRB5_GC_CACHED Only check the ccache, don't got out on network to fetch credential. KRB5_GC_USER_USER request a user to user ticket. This options doesn't store the resulting user to user credential in the ccache. KRB5_GC_EXPIRED_OK returns the credential even if it is expired, de- fault behavior is trying to refetch the credential from the KDC. KRB5_GC_NO_STORE Do not store the resulting credentials in the ccache. krb5_get_creds_opt_set_enctype() sets the preferred encryption type of the application. Don't set this unless you have to since if there is no match in the KDC, the function call will fail. krb5_get_creds_opt_set_impersonate() sets the principal to imperson- ate., Returns a ticket that have the impersonation principal as a client and the requestor as the service. Note that the requested prin- cipal have to be the same as the client principal in the krbtgt. krb5_get_creds_opt_set_ticket() sets the extra ticket used in user-to- user or contrained delegation use case. SEE ALSO krb5(3), krb5_get_credentials(3), krb5.conf(5) HEIMDAL June 15, 2006 KRB5_GET_CREDS(3)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | SEE ALSO
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