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36 RCSID("$Id: verify.c,v 1.25.12.1 2004/09/08 09:14:26 joda Exp $");
39 #include <sys/types.h>
51 static char krb5ccname[128];
54 static char krbtkfile[128];
58 In some cases is afs_gettktstring called twice (once before
59 afs_verify and once after afs_verify).
60 In some cases (rlogin with access allowed via .rhosts)
61 afs_verify is not called!
62 So we can't rely on correct value in krbtkfile in some
66 static int correct_tkfilename=0;
71 set_krbtkfile(uid_t uid)
73 snprintf (krbtkfile, sizeof(krbtkfile), "%s%d", TKT_ROOT, (unsigned)uid);
74 krb_set_tkt_string (krbtkfile);
75 correct_tkfilename = 1;
79 /* XXX this has to be the default cache name, since the KRB5CCNAME
80 * environment variable isn't exported by login/xdm
85 set_krb5ccname(uid_t uid)
87 snprintf (krb5ccname, sizeof(krb5ccname), "FILE:/tmp/krb5cc_%d", uid);
89 snprintf (krbtkfile, sizeof(krbtkfile), "%s%d", TKT_ROOT, (unsigned)uid);
91 correct_tkfilename = 1;
96 set_spec_krbtkfile(void)
100 snprintf (krbtkfile, sizeof(krbtkfile), "%s_XXXXXX", TKT_ROOT);
101 fd = mkstemp(krbtkfile);
104 krb_set_tkt_string (krbtkfile);
107 snprintf(krb5ccname, sizeof(krb5ccname),"FILE:/tmp/krb5cc_XXXXXX");
108 fd=mkstemp(krb5ccname+5);
110 unlink(krb5ccname+5);
116 verify_krb5(struct passwd *pwd,
121 krb5_context context;
124 krb5_principal principal;
126 ret = krb5_init_context(&context);
128 syslog(LOG_AUTH|LOG_DEBUG, "krb5_init_context failed: %d", ret);
132 ret = krb5_parse_name (context, pwd->pw_name, &principal);
134 syslog(LOG_AUTH|LOG_DEBUG, "krb5_parse_name: %s",
135 krb5_get_err_text(context, ret));
139 set_krb5ccname(pwd->pw_uid);
140 ret = krb5_cc_resolve(context, krb5ccname, &ccache);
142 syslog(LOG_AUTH|LOG_DEBUG, "krb5_cc_resolve: %s",
143 krb5_get_err_text(context, ret));
147 ret = krb5_verify_user_lrealm(context,
154 syslog(LOG_AUTH|LOG_DEBUG, "krb5_verify_user: %s",
155 krb5_get_err_text(context, ret));
159 if(chown(krb5_cc_get_name(context, ccache), pwd->pw_uid, pwd->pw_gid)) {
160 syslog(LOG_AUTH|LOG_DEBUG, "chown: %s",
161 krb5_get_err_text(context, errno));
167 krb5_realm realm = NULL;
168 krb5_boolean get_v4_tgt;
170 krb5_get_default_realm(context, &realm);
171 krb5_appdefault_boolean(context, "afskauthlib",
173 "krb4_get_tickets", FALSE, &get_v4_tgt);
176 krb5_creds mcred, cred;
178 krb5_make_principal(context, &mcred.server, realm,
182 ret = krb5_cc_retrieve_cred(context, ccache, 0, &mcred, &cred);
184 ret = krb524_convert_creds_kdc_ccache(context, ccache, &cred, &c);
186 krb5_warn(context, ret, "converting creds");
188 set_krbtkfile(pwd->pw_uid);
189 tf_setup(&c, c.pname, c.pinst);
191 memset(&c, 0, sizeof(c));
192 krb5_free_creds_contents(context, &cred);
194 syslog(LOG_AUTH|LOG_DEBUG, "krb5_cc_retrieve_cred: %s",
195 krb5_get_err_text(context, ret));
197 krb5_free_principal(context, mcred.server);
200 if (!pag_set && k_hasafs()) {
206 krb5_afslog_uid_home(context, ccache, NULL, NULL,
207 pwd->pw_uid, pwd->pw_dir);
212 printf ("%s\n", krb5_get_err_text (context, ret));
219 verify_krb4(struct passwd *pwd,
225 char lrealm[REALM_SZ];
227 if (krb_get_lrealm (lrealm, 1) != KFAILURE) {
228 set_krbtkfile(pwd->pw_uid);
229 ret = krb_verify_user (pwd->pw_name, "", lrealm, password,
230 KRB_VERIFY_SECURE, NULL);
231 if (ret == KSUCCESS) {
232 if (!pag_set && k_hasafs()) {
237 krb_afslog_uid_home (0, 0, pwd->pw_uid, pwd->pw_dir);
239 printf ("%s\n", krb_get_err_text (ret));
246 afs_verify(char *name,
252 struct passwd *pwd = k_getpwnam (name);
257 if (!pag_set && k_hasafs()) {
263 ret = unix_verify_user (name, password);
266 ret = verify_krb5(pwd, password, exp, quiet);
270 ret = verify_krb4(pwd, password, exp, quiet);
276 afs_gettktstring (void)
281 if (!correct_tkfilename) {
282 ptr = getenv("LOGNAME");
283 if (ptr != NULL && ((pwd = getpwnam(ptr)) != NULL)) {
284 set_krb5ccname(pwd->pw_uid);
286 set_krbtkfile(pwd->pw_uid);
287 if (!pag_set && k_hasafs()) {
293 set_spec_krbtkfile();
297 esetenv("KRB5CCNAME",krb5ccname,1);
300 esetenv("KRBTKFILE",krbtkfile,1);