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IN NO EVENT SHALL THE * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * Declarations for kdcpolicy plugin module implementors. * * The kdcpolicy pluggable interface currently has only one supported major * version, which is 1. Major version 1 has a current minor version number of * 1. * * kdcpolicy plugin modules should define a function named * kdcpolicy__initvt, matching the signature: * * krb5_error_code * kdcpolicy_modname_initvt(krb5_context context, int maj_ver, int min_ver, * krb5_plugin_vtable vtable); * * The initvt function should: * * - Check that the supplied maj_ver number is supported by the module, or * return KRB5_PLUGIN_VER_NOTSUPP if it is not. * * - Cast the vtable pointer as appropriate for maj_ver: * maj_ver == 1: Cast to krb5_kdcpolicy_vtable * * - Initialize the methods of the vtable, stopping as appropriate for the * supplied min_ver. Optional methods may be left uninitialized. * * Memory for the vtable is allocated by the caller, not by the module. */ #ifndef KRB5_POLICY_PLUGIN_H #define KRB5_POLICY_PLUGIN_H #include /* Abstract module datatype. */ typedef struct krb5_kdcpolicy_moddata_st *krb5_kdcpolicy_moddata; /* A module can optionally include kdb.h to inspect principal entries when * authorizing requests. */ struct _krb5_db_entry_new; /* * Optional: Initialize module data. Return 0 on success, * KRB5_PLUGIN_NO_HANDLE if the module is inoperable (due to configuration, for * example), and any other error code to abort KDC startup. Optionally set * *data_out to a module data object to be passed to future calls. */ typedef krb5_error_code (*krb5_kdcpolicy_init_fn)(krb5_context context, krb5_kdcpolicy_moddata *data_out); /* Optional: Clean up module data. */ typedef krb5_error_code (*krb5_kdcpolicy_fini_fn)(krb5_context context, krb5_kdcpolicy_moddata moddata); /* * Optional: return an error code and set status to an appropriate string * literal to deny an AS request; otherwise return 0. lifetime_out, if set, * restricts the ticket lifetime. renew_lifetime_out, if set, restricts the * ticket renewable lifetime. */ typedef krb5_error_code (*krb5_kdcpolicy_check_as_fn)(krb5_context context, krb5_kdcpolicy_moddata moddata, const krb5_kdc_req *request, const struct _krb5_db_entry_new *client, const struct _krb5_db_entry_new *server, const char *const *auth_indicators, const char **status, krb5_deltat *lifetime_out, krb5_deltat *renew_lifetime_out); /* * Optional: return an error code and set status to an appropriate string * literal to deny a TGS request; otherwise return 0. lifetime_out, if set, * restricts the ticket lifetime. renew_lifetime_out, if set, restricts the * ticket renewable lifetime. */ typedef krb5_error_code (*krb5_kdcpolicy_check_tgs_fn)(krb5_context context, krb5_kdcpolicy_moddata moddata, const krb5_kdc_req *request, const struct _krb5_db_entry_new *server, const krb5_ticket *ticket, const char *const *auth_indicators, const char **status, krb5_deltat *lifetime_out, krb5_deltat *renew_lifetime_out); typedef struct krb5_kdcpolicy_vtable_st { const char *name; krb5_kdcpolicy_init_fn init; krb5_kdcpolicy_fini_fn fini; krb5_kdcpolicy_check_as_fn check_as; krb5_kdcpolicy_check_tgs_fn check_tgs; } *krb5_kdcpolicy_vtable; #endif /* KRB5_POLICY_PLUGIN_H */