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34 #include "krb5_locl.h"
36 RCSID("$Id: verify_user.c 19078 2006-11-20 18:12:41Z lha $");
38 static krb5_error_code
39 verify_common (krb5_context context,
40 krb5_principal principal,
48 krb5_principal server;
49 krb5_verify_init_creds_opt vopt;
52 ret = krb5_sname_to_principal (context, NULL, service, KRB5_NT_SRV_HST,
57 krb5_verify_init_creds_opt_init(&vopt);
58 krb5_verify_init_creds_opt_set_ap_req_nofail(&vopt, secure);
60 ret = krb5_verify_init_creds(context,
66 krb5_free_principal(context, server);
70 ret = krb5_cc_default (context, &id);
74 ret = krb5_cc_initialize(context, id, principal);
76 ret = krb5_cc_store_cred(context, id, &cred);
79 krb5_cc_close(context, id);
81 krb5_free_cred_contents(context, &cred);
86 * Verify user `principal' with `password'.
88 * If `secure', also verify against local service key for `service'.
90 * As a side effect, fresh tickets are obtained and stored in `ccache'.
93 void KRB5_LIB_FUNCTION
94 krb5_verify_opt_init(krb5_verify_opt *opt)
96 memset(opt, 0, sizeof(*opt));
98 opt->service = "host";
101 int KRB5_LIB_FUNCTION
102 krb5_verify_opt_alloc(krb5_context context, krb5_verify_opt **opt)
104 *opt = calloc(1, sizeof(**opt));
105 if ((*opt) == NULL) {
106 krb5_set_error_string(context, "malloc: out of memory");
109 krb5_verify_opt_init(*opt);
113 void KRB5_LIB_FUNCTION
114 krb5_verify_opt_free(krb5_verify_opt *opt)
119 void KRB5_LIB_FUNCTION
120 krb5_verify_opt_set_ccache(krb5_verify_opt *opt, krb5_ccache ccache)
122 opt->ccache = ccache;
125 void KRB5_LIB_FUNCTION
126 krb5_verify_opt_set_keytab(krb5_verify_opt *opt, krb5_keytab keytab)
128 opt->keytab = keytab;
131 void KRB5_LIB_FUNCTION
132 krb5_verify_opt_set_secure(krb5_verify_opt *opt, krb5_boolean secure)
134 opt->secure = secure;
137 void KRB5_LIB_FUNCTION
138 krb5_verify_opt_set_service(krb5_verify_opt *opt, const char *service)
140 opt->service = service;
143 void KRB5_LIB_FUNCTION
144 krb5_verify_opt_set_flags(krb5_verify_opt *opt, unsigned int flags)
149 static krb5_error_code
150 verify_user_opt_int(krb5_context context,
151 krb5_principal principal,
152 const char *password,
153 krb5_verify_opt *vopt)
157 krb5_get_init_creds_opt *opt;
160 ret = krb5_get_init_creds_opt_alloc (context, &opt);
163 krb5_get_init_creds_opt_set_default_flags(context, NULL,
164 krb5_principal_get_realm(context, principal),
166 ret = krb5_get_init_creds_password (context,
175 krb5_get_init_creds_opt_free(context, opt);
178 #define OPT(V, D) ((vopt && (vopt->V)) ? (vopt->V) : (D))
179 return verify_common (context, principal, OPT(ccache, NULL),
180 OPT(keytab, NULL), vopt ? vopt->secure : TRUE,
181 OPT(service, "host"), cred);
185 krb5_error_code KRB5_LIB_FUNCTION
186 krb5_verify_user_opt(krb5_context context,
187 krb5_principal principal,
188 const char *password,
189 krb5_verify_opt *opt)
193 if(opt && (opt->flags & KRB5_VERIFY_LREALMS)) {
194 krb5_realm *realms, *r;
195 ret = krb5_get_default_realms (context, &realms);
198 ret = KRB5_CONFIG_NODEFREALM;
200 for (r = realms; *r != NULL && ret != 0; ++r) {
201 char *tmp = strdup (*r);
204 krb5_free_host_realm (context, realms);
205 krb5_set_error_string (context, "malloc: out of memory");
208 free (*krb5_princ_realm (context, principal));
209 krb5_princ_set_realm (context, principal, &tmp);
211 ret = verify_user_opt_int(context, principal, password, opt);
213 krb5_free_host_realm (context, realms);
217 ret = verify_user_opt_int(context, principal, password, opt);
221 /* compat function that calls above */
223 krb5_error_code KRB5_LIB_FUNCTION
224 krb5_verify_user(krb5_context context,
225 krb5_principal principal,
227 const char *password,
233 krb5_verify_opt_init(&opt);
235 krb5_verify_opt_set_ccache(&opt, ccache);
236 krb5_verify_opt_set_secure(&opt, secure);
237 krb5_verify_opt_set_service(&opt, service);
239 return krb5_verify_user_opt(context, principal, password, &opt);
243 * A variant of `krb5_verify_user'. The realm of `principal' is
244 * ignored and all the local realms are tried.
247 krb5_error_code KRB5_LIB_FUNCTION
248 krb5_verify_user_lrealm(krb5_context context,
249 krb5_principal principal,
251 const char *password,
257 krb5_verify_opt_init(&opt);
259 krb5_verify_opt_set_ccache(&opt, ccache);
260 krb5_verify_opt_set_secure(&opt, secure);
261 krb5_verify_opt_set_service(&opt, service);
262 krb5_verify_opt_set_flags(&opt, KRB5_VERIFY_LREALMS);
264 return krb5_verify_user_opt(context, principal, password, &opt);