diff options
Diffstat (limited to 'source4/auth/kerberos')
| -rw-r--r-- | source4/auth/kerberos/kerberos.c | 68 |
1 files changed, 41 insertions, 27 deletions
diff --git a/source4/auth/kerberos/kerberos.c b/source4/auth/kerberos/kerberos.c index 8824d748d2..5e38d878be 100644 --- a/source4/auth/kerberos/kerberos.c +++ b/source4/auth/kerberos/kerberos.c @@ -85,20 +85,24 @@ */ krb5_error_code kerberos_kinit_password_cc(krb5_context ctx, krb5_ccache cc, - krb5_principal principal, const char *password, - krb5_principal impersonate_principal, const char *target_service, + krb5_principal init_principal, + const char *init_password, + krb5_principal impersonate_principal, + const char *target_service, krb5_get_init_creds_opt *krb_options, time_t *expire_time, time_t *kdc_time) { krb5_error_code code = 0; - krb5_creds my_creds; - krb5_creds *impersonate_creds; + krb5_creds init_creds; krb5_get_creds_opt options; + const char *self_service = target_service; /* If we are not impersonating, then get this ticket for the * target service, otherwise a krbtgt, and get the next ticket * for the target */ - if ((code = krb5_get_init_creds_password(ctx, &my_creds, principal, password, + if ((code = krb5_get_init_creds_password(ctx, &init_creds, + init_principal, + init_password, NULL, NULL, 0, impersonate_principal ? NULL : target_service, @@ -106,59 +110,69 @@ return code; } - if ((code = krb5_cc_initialize(ctx, cc, principal))) { - krb5_free_cred_contents(ctx, &my_creds); + if ((code = krb5_cc_initialize(ctx, cc, init_principal))) { + krb5_free_cred_contents(ctx, &init_creds); return code; } - if ((code = krb5_cc_store_cred(ctx, cc, &my_creds))) { - krb5_free_cred_contents(ctx, &my_creds); + if ((code = krb5_cc_store_cred(ctx, cc, &init_creds))) { + krb5_free_cred_contents(ctx, &init_creds); return code; } if (expire_time) { - *expire_time = (time_t) my_creds.times.endtime; + *expire_time = (time_t) init_creds.times.endtime; } if (kdc_time) { - *kdc_time = (time_t) my_creds.times.starttime; + *kdc_time = (time_t) init_creds.times.starttime; } - krb5_free_cred_contents(ctx, &my_creds); - + krb5_free_cred_contents(ctx, &init_creds); + if (code == 0 && impersonate_principal) { - krb5_principal target_princ; - if ((code = krb5_get_creds_opt_alloc(ctx, &options))) { + krb5_creds *s4u2self_creds; + krb5_principal self_princ; + const char *self_realm; + + /* + * For S4U2Self we need our own service principal, + * which belongs to our own realm (available on + * our client principal. + */ + self_realm = krb5_principal_get_realm(ctx, init_principal); + + if ((code = krb5_parse_name(ctx, self_service, &self_princ))) { return code; } - if ((code = krb5_get_creds_opt_set_impersonate(ctx, options, impersonate_principal))) { - krb5_get_creds_opt_free(ctx, options); + if ((code = krb5_principal_set_realm(ctx, self_princ, self_realm))) { + krb5_free_principal(ctx, self_princ); return code; } - if ((code = krb5_parse_name(ctx, target_service, &target_princ))) { - krb5_get_creds_opt_free(ctx, options); + if ((code = krb5_get_creds_opt_alloc(ctx, &options))) { + krb5_free_principal(ctx, self_princ); return code; } - if ((code = krb5_principal_set_realm(ctx, target_princ, krb5_principal_get_realm(ctx, principal)))) { + if ((code = krb5_get_creds_opt_set_impersonate(ctx, options, impersonate_principal))) { krb5_get_creds_opt_free(ctx, options); - krb5_free_principal(ctx, target_princ); + krb5_free_principal(ctx, self_princ); return code; } - if ((code = krb5_get_creds(ctx, options, cc, target_princ, &impersonate_creds))) { - krb5_free_principal(ctx, target_princ); + if ((code = krb5_get_creds(ctx, options, cc, self_princ, &s4u2self_creds))) { krb5_get_creds_opt_free(ctx, options); + krb5_free_principal(ctx, self_princ); return code; } - krb5_free_principal(ctx, target_princ); - - code = krb5_cc_store_cred(ctx, cc, impersonate_creds); krb5_get_creds_opt_free(ctx, options); - krb5_free_creds(ctx, impersonate_creds); + krb5_free_principal(ctx, self_princ); + + code = krb5_cc_store_cred(ctx, cc, s4u2self_creds); + krb5_free_creds(ctx, s4u2self_creds); return code; } |