2 * Copyright (c) 1997-2004 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
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7 * modification, are permitted provided that the following conditions
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11 * notice, this list of conditions and the following disclaimer.
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14 * notice, this list of conditions and the following disclaimer in the
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18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
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34 #include "krb5_locl.h"
36 static krb5_error_code
37 verify_common (krb5_context context,
38 krb5_principal principal,
46 krb5_principal server;
47 krb5_verify_init_creds_opt vopt;
50 ret = krb5_sname_to_principal (context, NULL, service, KRB5_NT_SRV_HST,
55 krb5_verify_init_creds_opt_init(&vopt);
56 krb5_verify_init_creds_opt_set_ap_req_nofail(&vopt, secure);
58 ret = krb5_verify_init_creds(context,
64 krb5_free_principal(context, server);
68 ret = krb5_cc_default (context, &id);
72 ret = krb5_cc_initialize(context, id, principal);
74 ret = krb5_cc_store_cred(context, id, &cred);
77 krb5_cc_close(context, id);
79 krb5_free_cred_contents(context, &cred);
84 * Verify user `principal' with `password'.
86 * If `secure', also verify against local service key for `service'.
88 * As a side effect, fresh tickets are obtained and stored in `ccache'.
91 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
92 krb5_verify_opt_init(krb5_verify_opt *opt)
94 memset(opt, 0, sizeof(*opt));
96 opt->service = "host";
99 KRB5_LIB_FUNCTION int KRB5_LIB_CALL
100 krb5_verify_opt_alloc(krb5_context context, krb5_verify_opt **opt)
102 *opt = calloc(1, sizeof(**opt));
103 if ((*opt) == NULL) {
104 krb5_set_error_message(context, ENOMEM,
105 N_("malloc: out of memory", ""));
108 krb5_verify_opt_init(*opt);
112 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
113 krb5_verify_opt_free(krb5_verify_opt *opt)
118 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
119 krb5_verify_opt_set_ccache(krb5_verify_opt *opt, krb5_ccache ccache)
121 opt->ccache = ccache;
124 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
125 krb5_verify_opt_set_keytab(krb5_verify_opt *opt, krb5_keytab keytab)
127 opt->keytab = keytab;
130 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
131 krb5_verify_opt_set_secure(krb5_verify_opt *opt, krb5_boolean secure)
133 opt->secure = secure;
136 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
137 krb5_verify_opt_set_service(krb5_verify_opt *opt, const char *service)
139 opt->service = service;
142 KRB5_LIB_FUNCTION void KRB5_LIB_CALL
143 krb5_verify_opt_set_flags(krb5_verify_opt *opt, unsigned int flags)
148 static krb5_error_code
149 verify_user_opt_int(krb5_context context,
150 krb5_principal principal,
151 const char *password,
152 krb5_verify_opt *vopt)
156 krb5_get_init_creds_opt *opt;
159 ret = krb5_get_init_creds_opt_alloc (context, &opt);
162 krb5_get_init_creds_opt_set_default_flags(context, NULL,
163 krb5_principal_get_realm(context, principal),
165 ret = krb5_get_init_creds_password (context,
174 krb5_get_init_creds_opt_free(context, opt);
177 #define OPT(V, D) ((vopt && (vopt->V)) ? (vopt->V) : (D))
178 return verify_common (context, principal, OPT(ccache, NULL),
179 OPT(keytab, NULL), vopt ? vopt->secure : TRUE,
180 OPT(service, "host"), cred);
184 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
185 krb5_verify_user_opt(krb5_context context,
186 krb5_principal principal,
187 const char *password,
188 krb5_verify_opt *opt)
192 if(opt && (opt->flags & KRB5_VERIFY_LREALMS)) {
193 krb5_realm *realms, *r;
194 ret = krb5_get_default_realms (context, &realms);
197 ret = KRB5_CONFIG_NODEFREALM;
199 for (r = realms; *r != NULL && ret != 0; ++r) {
200 ret = krb5_principal_set_realm(context, principal, *r);
202 krb5_free_host_realm (context, realms);
206 ret = verify_user_opt_int(context, principal, password, opt);
208 krb5_free_host_realm (context, realms);
212 ret = verify_user_opt_int(context, principal, password, opt);
216 /* compat function that calls above */
218 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
219 krb5_verify_user(krb5_context context,
220 krb5_principal principal,
222 const char *password,
228 krb5_verify_opt_init(&opt);
230 krb5_verify_opt_set_ccache(&opt, ccache);
231 krb5_verify_opt_set_secure(&opt, secure);
232 krb5_verify_opt_set_service(&opt, service);
234 return krb5_verify_user_opt(context, principal, password, &opt);
238 * A variant of `krb5_verify_user'. The realm of `principal' is
239 * ignored and all the local realms are tried.
242 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
243 krb5_verify_user_lrealm(krb5_context context,
244 krb5_principal principal,
246 const char *password,
252 krb5_verify_opt_init(&opt);
254 krb5_verify_opt_set_ccache(&opt, ccache);
255 krb5_verify_opt_set_secure(&opt, secure);
256 krb5_verify_opt_set_service(&opt, service);
257 krb5_verify_opt_set_flags(&opt, KRB5_VERIFY_LREALMS);
259 return krb5_verify_user_opt(context, principal, password, &opt);