2 * Utility functions for tests that use Kerberos.
4 * The canonical version of this file is maintained in the rra-c-util package,
5 * which can be found at <http://www.eyrie.org/~eagle/software/rra-c-util/>.
7 * Written by Russ Allbery <eagle@eyrie.org>
8 * Copyright 2006, 2007, 2009, 2011, 2012, 2013
9 * The Board of Trustees of the Leland Stanford Junior University
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30 #ifndef TAP_KERBEROS_H
31 #define TAP_KERBEROS_H 1
34 #include <tests/tap/macros.h>
37 # include <portable/krb5.h>
40 /* Holds the information parsed from the Kerberos test configuration. */
41 struct kerberos_config {
42 char *keytab; /* Path to the keytab. */
43 char *principal; /* Principal whose keys are in the keytab. */
44 char *cache; /* Path to the Kerberos ticket cache. */
45 char *userprinc; /* The fully-qualified principal. */
46 char *username; /* The local (non-realm) part of principal. */
47 char *realm; /* The realm part of the principal. */
48 char *password; /* The password. */
52 * Whether to skip all tests (by calling skip_all) in kerberos_setup if
53 * certain configuration information isn't available.
56 TAP_KRB_NEEDS_NONE = 0x00,
57 TAP_KRB_NEEDS_KEYTAB = 0x01,
58 TAP_KRB_NEEDS_PASSWORD = 0x02,
59 TAP_KRB_NEEDS_BOTH = 0x01 | 0x02
65 * Set up Kerberos, returning the test configuration information. This
66 * obtains Kerberos tickets from config/keytab, if one is present, and stores
67 * them in a Kerberos ticket cache, sets KRB5_KTNAME and KRB5CCNAME. It also
68 * loads the principal and password from config/password, if it exists, and
69 * stores the principal, password, username, and realm in the returned struct.
71 * If there is no config/keytab file, KRB5_KTNAME and KRB5CCNAME won't be set
72 * and the keytab field will be NULL. If there is no config/password file,
73 * the principal field will be NULL. If the files exist but loading them
74 * fails, or authentication fails, kerberos_setup calls bail.
76 * kerberos_cleanup will be set up to run from an atexit handler. This means
77 * that any child processes that should not remove the Kerberos ticket cache
78 * should call _exit instead of exit. The principal will be automatically
79 * freed when kerberos_cleanup is called or if kerberos_setup is called again.
80 * The caller doesn't need to worry about it.
82 struct kerberos_config *kerberos_setup(enum kerberos_needs)
83 __attribute__((__malloc__));
84 void kerberos_cleanup(void);
87 * Generate a krb5.conf file for testing and set KRB5_CONFIG to point to it.
88 * The [appdefaults] section will be stripped out and the default realm will
89 * be set to the realm specified, if not NULL. This will use config/krb5.conf
90 * in preference, so users can configure the tests by creating that file if
91 * the system file isn't suitable.
93 * Depends on data/generate-krb5-conf being present in the test suite.
95 * kerberos_cleanup_conf will clean up after this function, but usually
96 * doesn't need to be called directly since it's registered as an atexit
99 void kerberos_generate_conf(const char *realm);
100 void kerberos_cleanup_conf(void);
102 /* Thes interfaces are only available with native Kerberos support. */
105 /* Bail out with an error, appending the Kerberos error message. */
106 void bail_krb5(krb5_context, krb5_error_code, const char *format, ...)
107 __attribute__((__noreturn__, __nonnull__, __format__(printf, 3, 4)));
109 /* Report a diagnostic with Kerberos error to stderr prefixed with #. */
110 void diag_krb5(krb5_context, krb5_error_code, const char *format, ...)
111 __attribute__((__nonnull__, __format__(printf, 3, 4)));
114 * Given a Kerberos context and the path to a keytab, retrieve the principal
115 * for the first entry in the keytab and return it. Calls bail on failure.
116 * The returned principal should be freed with krb5_free_principal.
118 krb5_principal kerberos_keytab_principal(krb5_context, const char *path)
119 __attribute__((__nonnull__));
121 #endif /* HAVE_KRB5 */
125 #endif /* !TAP_MESSAGES_H */