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GSS_ACQUIRE_CRED (3) \| C library functions \| Unix Manual Pages \| :man▋ NAME gss_accept_sec_context, gss_acquire_cred, gss_add_cred, gss_add_oid_set_member, gss_canonicalize_name, gss_compare_name, gss_context_time, gss_create_empty_oid_set, gss_delete_sec_context, gss_display_name, gss_display_status, gss_duplicate_name, gss_export_name, gss_export_sec_context, gss_get_mic, gss_import_name, gss_import_sec_context, gss_indicate_mechs, gss_init_sec_context, gss_inquire_context, gss_inquire_cred, gss_inquire_cred_by_mech, gss_inquire_mechs_for_name, gss_inquire_names_for_mech, gss_krb5_copy_ccache, gss_krb5_compat_des3_mic, gss_process_context_token, gss_release_buffer, gss_release_cred, gss_release_name, gss_release_oid_set, gss_seal, gss_sign, gss_test_oid_set_member, gss_unseal, gss_unwrap, gss_verify, gss_verify_mic, gss_wrap, gss_wrap_size_limit - Generic Security Service Application Program Interface library CONTENTS Library Synopsis Description See Also LIBRARY GSS-API library (libgssapi, -lgssapi) SYNOPSIS .In gssapi.h OM_uint32 .Fo gss_accept_sec_context "OM_uint32 minor_status"* "gss_ctx_id_t context_handle"* "const gss_cred_id_t acceptor_cred_handle" "const gss_buffer_t input_token_buffer" "const gss_channel_bindings_t input_chan_bindings" "gss_name_t src_name"* "gss_OID mech_type"* "gss_buffer_t output_token" "OM_uint32 ret_flags"* "OM_uint32 time_rec"* "gss_cred_id_t delegated_cred_handle"* .Fc OM_uint32 .Fo gss_acquire_cred "OM_uint32 minor_status"* "const gss_name_t desired_name" "OM_uint32 time_req" "const gss_OID_set desired_mechs" "gss_cred_usage_t cred_usage" "gss_cred_id_t output_cred_handle"* "gss_OID_set actual_mechs"* "OM_uint32 time_rec"* .Fc OM_uint32 .Fo gss_add_oid_set_member "OM_uint32 minor_status"* "const gss_OID member_oid" "gss_OID_set oid_set"* .Fc OM_uint32 .Fo gss_canonicalize_name "OM_uint32 minor_status"* "const gss_name_t input_name" "const gss_OID mech_type" "gss_name_t output_name"* .Fc OM_uint32 .Fo gss_compare_name "OM_uint32 minor_status"* "const gss_name_t name1" "const gss_name_t name2" "int name_equal"* .Fc OM_uint32 .Fo gss_context_time "OM_uint32 minor_status"* "const gss_ctx_id_t context_handle" "OM_uint32 time_rec"* .Fc OM_uint32 .Fo gss_create_empty_oid_set "OM_uint32 minor_status"* "gss_OID_set oid_set"* .Fc OM_uint32 .Fo gss_delete_sec_context "OM_uint32 minor_status"* "gss_ctx_id_t context_handle"* "gss_buffer_t output_token" .Fc OM_uint32 .Fo gss_display_name "OM_uint32 minor_status"* "const gss_name_t input_name" "gss_buffer_t output_name_buffer" "gss_OID output_name_type"* .Fc OM_uint32 .Fo gss_display_status "OM_uint32 minor_status"* "OM_uint32 status_value" "int status_type" "const gss_OID mech_type" "OM_uint32 message_context"* "gss_buffer_t status_string" .Fc OM_uint32 .Fo gss_duplicate_name "OM_uint32 minor_status"* "const gss_name_t src_name" "gss_name_t dest_name"* .Fc OM_uint32 .Fo gss_export_name "OM_uint32 minor_status"* "const gss_name_t input_name" "gss_buffer_t exported_name" .Fc OM_uint32 .Fo gss_export_sec_context "OM_uint32 minor_status"* "gss_ctx_id_t context_handle"* "gss_buffer_t interprocess_token" .Fc OM_uint32 .Fo gss_get_mic "OM_uint32 minor_status"* "const gss_ctx_id_t context_handle" "gss_qop_t qop_req" "const gss_buffer_t message_buffer" "gss_buffer_t message_token" .Fc OM_uint32 .Fo gss_import_name "OM_uint32 minor_status,* "const gss_buffer_t input_name_buffer" "const gss_OID input_name_type" "gss_name_t output_name"* .Fc OM_uint32 .Fo gss_import_sec_context "OM_uint32 minor_status"* "const gss_buffer_t interprocess_token" "gss_ctx_id_t context_handle"* .Fc OM_uint32 .Fo gss_indicate_mechs "OM_uint32 minor_status"* "gss_OID_set mech_set"* .Fc OM_uint32 .Fo gss_init_sec_context "OM_uint32 minor_status"* "const gss_cred_id_t initiator_cred_handle" "gss_ctx_id_t context_handle"* "const gss_name_t target_name" "const gss_OID mech_type" "OM_uint32 req_flags" "OM_uint32 time_req" "const gss_channel_bindings_t input_chan_bindings" "const gss_buffer_t input_token" "gss_OID actual_mech_type"* "gss_buffer_t output_token" "OM_uint32 ret_flags"* "OM_uint32 time_rec"* .Fc OM_uint32 .Fo gss_inquire_context "OM_uint32 minor_status"* "const gss_ctx_id_t context_handle" "gss_name_t src_name"* "gss_name_t targ_name"* "OM_uint32 lifetime_rec"* "gss_OID mech_type"* "OM_uint32 ctx_flags"* "int locally_initiated"* "int open_context"* .Fc OM_uint32 .Fo gss_inquire_cred "OM_uint32 minor_status"* "const gss_cred_id_t cred_handle" "gss_name_t name"* "OM_uint32 lifetime"* "gss_cred_usage_t cred_usage"* "gss_OID_set mechanisms"* .Fc OM_uint32 .Fo gss_inquire_cred_by_mech .Fc OM_uint32 .Fo gss_inquire_mechs_for_name .Fc OM_uint32 .Fo gss_inquire_names_for_mech .Fc OM_uint32 .Fo gss_krb5_copy_ccache "OM_uint32 minor"* "gss_cred_id_t cred" "krb5_ccache out" .Fc OM_uint32 .Fo gss_krb5_compat_des3_mic "OM_uint32 minor_status"* "gss_ctx_id_t context_handle" "int onoff" .Fc OM_uint32 .Fo gss_process_context_token .Fc OM_uint32 .Fo gss_release_buffer "OM_uint32 minor_status"* "gss_buffer_t buffer" .Fc OM_uint32 .Fo gss_release_cred "OM_uint32 minor_status"* "gss_cred_id_t cred_handle"* .Fc OM_uint32 .Fo gss_release_name "OM_uint32 minor_status"* "gss_name_t input_name"* .Fc .Fo gss_release_oid_set "OM_uint32 minor_status"* "gss_OID_set set"* .Fc OM_uint32 .Fo gss_seal "OM_uint32 minor_status"* "gss_ctx_id_t context_handle" "int conf_req_flag" "int qop_req" "gss_buffer_t input_message_buffer" "int conf_state"* "gss_buffer_t output_message_buffer" .Fc OM_uint32 .Fo gss_sign "OM_uint32 minor_status"* "gss_ctx_id_t context_handle" "int qop_req" "gss_buffer_t message_buffer" "gss_buffer_t message_token" .Fc OM_uint32 .Fo gss_test_oid_set_member "OM_uint32 minor_status"* "const gss_OID member" "const gss_OID_set set" "int present"* .Fc OM_uint32 .Fo gss_unseal "OM_uint32 minor_status"* "gss_ctx_id_t context_handle" "gss_buffer_t input_message_buffer" "gss_buffer_t output_message_buffer" "int conf_state"* "int qop_state"* .Fc OM_uint32 .Fo gss_unwrap "OM_uint32 minor_status"* "const gss_ctx_id_t context_handle" "const gss_buffer_t input_message_buffer" "gss_buffer_t output_message_buffer" "int conf_state"* "gss_qop_t qop_state"* .Fc OM_uint32 .Fo gss_verify "OM_uint32 minor_status"* "gss_ctx_id_t context_handle" "gss_buffer_t message_buffer" "gss_buffer_t token_buffer" "int qop_state"* .Fc OM_uint32 .Fo gss_verify_mic "OM_uint32 minor_status"* "const gss_ctx_id_t context_handle" "const gss_buffer_t message_buffer" "const gss_buffer_t token_buffer" "gss_qop_t qop_state"* .Fc .Fo gss_wrap "OM_uint32 minor_status"* "const gss_ctx_id_t context_handle" "int conf_req_flag" "gss_qop_t qop_req" "const gss_buffer_t input_message_buffer" "int conf_state"* "gss_buffer_t output_message_buffer" .Fc OM_uint32 .Fo gss_wrap_size_limit "OM_uint32 minor_status"* "const gss_ctx_id_t context_handle" "int conf_req_flag" "gss_qop_t qop_req" "OM_uint32 req_output_size" "OM_uint32 max_input_size"* .Fc DESCRIPTION Generic Security Service API (GSS-API) version 2, and its C binding, is described in RFC2743 and RFC2744. Version 1 (deprecated) of the C binding is described in RFC1509. Heimdals GSS-API implementation supports the following mechanisms GSS_KRB5_MECHANISM GSS-API have generic name types that all mechanism are supposed to implement (if possible) GSS_C_NT_USER_NAME GSS_C_NT_MACHINE_UID_NAME GSS_C_NT_STRING_UID_NAME GSS_C_NT_HOSTBASED_SERVICE GSS_C_NT_ANONYMOUS GSS_C_NT_EXPORT_NAME GSS-API implementations that supports Kerberos 5 have some additional name types GSS_KRB5_NT_PRINCIPAL_NAME GSS_KRB5_NT_USER_NAME GSS_KRB5_NT_MACHINE_UID_NAME GSS_KRB5_NT_STRING_UID_NAME `gss_display_name` takes the gss name in input_name and put a printable form in output_name_buffer. output_name_buffer should be freed when done using `gss_release_buffer`. output_name_type can either be `NULL` or a pointer to a gss_OID and will in the later case contain the OID type of the name. The name should only be used for printing. Access control should be done with the result of `gss_export_name`. `gss_sign`, `gss_verify`, `gss_seal`, and `gss_unseal` are part of the GSS-API V1 interface and are obsolete. The functions should not be used for new applications. They are provided so that version 1 applications can link against the library. `gss_krb5_copy_ccache` is an extension to the GSS-API API. The function will extract the krb5 credential that are transfered from the initiator to the acceptor when using token delegation in the Kerberos mechanism. The acceptor receives the delegated token in the last argument to `gss_accept_sec_context`. gss_krb5_compat_des3_mic turns on or off the compatibly with older version of Heimdal using des3 get and verify mic, this is way to programmatically set the [gssapi]broken_des3_mic and [gssapi]correct_des3_mic flags (see COMPATIBILITY section in gssapi(3)). If the CPP symbol `GSS_C_KRB5_COMPAT_DES3_MIC` is present, gss_krb5_compat_des3_mic exists. gss_krb5_compat_des3_mic will be removed in a later version of the GSS-API library. SEE ALSO krb5(3), krb5_ccache(3), gssapi(3), kerberos(8)

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