krb5_keytab - Online Linux Manual PageSection : 3
Updated : Tue Nov 15 2022
Source : Version 7.8.0
Note : Heimdal Kerberos 5 library

NAMEkrb5_keytab − Heimdal Kerberos 5 keytab handling functions

SYNOPSIS

FunctionsKRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_register (krb5_context context, const krb5_kt_ops *ops)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_resolve (krb5_context context, const char *name, krb5_keytab *id)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_default_name (krb5_context context, char *name, size_t namesize)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_default_modify_name (krb5_context context, char *name, size_t namesize)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_default (krb5_context context, krb5_keytab *id)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_read_service_key (krb5_context context, krb5_pointer keyprocarg, krb5_principal principal, krb5_kvno vno, krb5_enctype enctype, krb5_keyblock **key)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_get_type (krb5_context context, krb5_keytab keytab, char *prefix, size_t prefixsize)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_get_name (krb5_context context, krb5_keytab keytab, char *name, size_t namesize)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_get_full_name (krb5_context context, krb5_keytab keytab, char **str)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_close (krb5_context context, krb5_keytab id)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_destroy (krb5_context context, krb5_keytab id)
KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL krb5_kt_compare (krb5_context context, krb5_keytab_entry *entry, krb5_const_principal principal, krb5_kvno vno, krb5_enctype enctype)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_get_entry (krb5_context context, krb5_keytab id, krb5_const_principal principal, krb5_kvno kvno, krb5_enctype enctype, krb5_keytab_entry *entry)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_copy_entry_contents (krb5_context context, const krb5_keytab_entry *in, krb5_keytab_entry *out)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_free_entry (krb5_context context, krb5_keytab_entry *entry)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_start_seq_get (krb5_context context, krb5_keytab id, krb5_kt_cursor *cursor)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_next_entry (krb5_context context, krb5_keytab id, krb5_keytab_entry *entry, krb5_kt_cursor *cursor)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_end_seq_get (krb5_context context, krb5_keytab id, krb5_kt_cursor *cursor)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_add_entry (krb5_context context, krb5_keytab id, krb5_keytab_entry *entry)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_remove_entry (krb5_context context, krb5_keytab id, krb5_keytab_entry *entry)
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_have_content (krb5_context context, krb5_keytab id)

Detailed Description

Function Documentation

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_add_entry (krb5_context context, krb5_keytab id, krb5_keytab_entry * entry)Add the entry in `entry' to the keytab `id'​. Parameters context a Keberos context​.
id a keytab​.
entry the entry to add
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_close (krb5_context context, krb5_keytab id)Finish using the keytab in `id'​. All resources will be released, even on errors​. Parameters context a Keberos context​.
id keytab to close​.
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_boolean KRB5_LIB_CALL krb5_kt_compare (krb5_context context, krb5_keytab_entry * entry, krb5_const_principal principal, krb5_kvno vno, krb5_enctype enctype)Compare `entry' against `principal, vno, enctype'​. Any of `principal, vno, enctype' might be 0 which acts as a wildcard​. Return TRUE if they compare the same, FALSE otherwise​. Parameters context a Keberos context​.
entry an entry to match with​.
principal principal to match, NULL matches all principals​.
vno key version to match, 0 matches all key version numbers​.
enctype encryption type to match, 0 matches all encryption types​.
Returns Return TRUE or match, FALSE if not matched​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_copy_entry_contents (krb5_context context, const krb5_keytab_entry * in, krb5_keytab_entry * out)Copy the contents of `in' into `out'​. Parameters context a Keberos context​.
in the keytab entry to copy​.
out the copy of the keytab entry, free with krb5_kt_free_entry()​.
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_default (krb5_context context, krb5_keytab * id)Set `id' to the default keytab​. Parameters context a Keberos context​.
id the new default keytab​.
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_default_modify_name (krb5_context context, char * name, size_t namesize)Copy the name of the default modify keytab into `name'​. Parameters context a Keberos context​.
name buffer where the name will be written
namesize length of name
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_default_name (krb5_context context, char * name, size_t namesize)copy the name of the default keytab into `name'​. Parameters context a Keberos context​.
name buffer where the name will be written
namesize length of name
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_destroy (krb5_context context, krb5_keytab id)Destroy (remove) the keytab in `id'​. All resources will be released, even on errors, does the equvalment of krb5_kt_close() on the resources​. Parameters context a Keberos context​.
id keytab to destroy​.
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_end_seq_get (krb5_context context, krb5_keytab id, krb5_kt_cursor * cursor)Release all resources associated with `cursor'​. Parameters context a Keberos context​.
id a keytab​.
cursor the cursor to free​.
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_free_entry (krb5_context context, krb5_keytab_entry * entry)Free the contents of `entry'​. Parameters context a Keberos context​.
entry the entry to free
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_get_entry (krb5_context context, krb5_keytab id, krb5_const_principal principal, krb5_kvno kvno, krb5_enctype enctype, krb5_keytab_entry * entry)Retrieve the keytab entry for `principal, kvno, enctype' into `entry' from the keytab `id'​. Matching is done like krb5_kt_compare()​. Parameters context a Keberos context​.
id a keytab​.
principal principal to match, NULL matches all principals​.
kvno key version to match, 0 matches all key version numbers​.
enctype encryption type to match, 0 matches all encryption types​.
entry the returned entry, free with krb5_kt_free_entry()​.
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_get_full_name (krb5_context context, krb5_keytab keytab, char ** str)Retrieve the full name of the keytab `keytab' and store the name in `str'​. Parameters context a Keberos context​.
keytab keytab to get name for​.
str the name of the keytab name, usee krb5_xfree() to free the string​. On error, *str is set to NULL​.
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_get_name (krb5_context context, krb5_keytab keytab, char * name, size_t namesize)Retrieve the name of the keytab `keytab' into `name', `namesize' Parameters context a Keberos context​.
keytab the keytab to get the name for​.
name name buffer​.
namesize size of name buffer​.
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_get_type (krb5_context context, krb5_keytab keytab, char * prefix, size_t prefixsize)Return the type of the `keytab' in the string prefix of length prefixsize'​. Parameters context a Keberos context​.
keytab the keytab to get the prefix for
prefix prefix buffer
prefixsize length of prefix buffer
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_have_content (krb5_context context, krb5_keytab id)Return true if the keytab exists and have entries Parameters context a Keberos context​.
id a keytab​.
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_next_entry (krb5_context context, krb5_keytab id, krb5_keytab_entry * entry, krb5_kt_cursor * cursor)Get the next entry from keytab, advance the cursor​. On last entry the function will return KRB5_KT_END​. Parameters context a Keberos context​.
id a keytab​.
entry the returned entry, free with krb5_kt_free_entry()​.
cursor the cursor of the iteration​.
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_read_service_key (krb5_context context, krb5_pointer keyprocarg, krb5_principal principal, krb5_kvno vno, krb5_enctype enctype, krb5_keyblock ** key)Read the key identified by `(principal, vno, enctype)' from the keytab in `keyprocarg' (the default if == NULL) into `*key'​. Parameters context a Keberos context​.
keyprocarg
principal
vno
enctype
key
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_register (krb5_context context, const krb5_kt_ops * ops)Register a new keytab backend​. Parameters context a Keberos context​.
ops a backend to register​.
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_remove_entry (krb5_context context, krb5_keytab id, krb5_keytab_entry * entry)Remove an entry from the keytab, matching is done using krb5_kt_compare()​. Parameters context a Keberos context​.
id a keytab​.
entry the entry to remove
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_resolve (krb5_context context, const char * name, krb5_keytab * id)Resolve the keytab name (of the form `type:residual') in `name' into a keytab in `id'​. Parameters context a Keberos context​.
name name to resolve
id resulting keytab, free with krb5_kt_close()​.
Returns Return an error code or 0, see krb5_get_error_message()​.

KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL krb5_kt_start_seq_get (krb5_context context, krb5_keytab id, krb5_kt_cursor * cursor)Set `cursor' to point at the beginning of `id'​. Parameters context a Keberos context​.
id a keytab​.
cursor a newly allocated cursor, free with krb5_kt_end_seq_get()​.
Returns Return an error code or 0, see krb5_get_error_message()​.

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