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36 RCSID("$Id: verify.c,v 1.20 1999/12/02 16:58:37 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 krb5_init_context(&context);
128 ret = krb5_parse_name (context, pwd->pw_name, &principal);
130 syslog(LOG_AUTH|LOG_DEBUG, "krb5_parse_name: %s",
131 krb5_get_err_text(context, ret));
135 set_krb5ccname(pwd->pw_uid);
136 ret = krb5_cc_resolve(context, krb5ccname, &ccache);
138 syslog(LOG_AUTH|LOG_DEBUG, "krb5_cc_resolve: %s",
139 krb5_get_err_text(context, ret));
143 ret = krb5_verify_user_lrealm(context,
150 syslog(LOG_AUTH|LOG_DEBUG, "krb5_verify_user: %s",
151 krb5_get_err_text(context, ret));
155 if(chown(krb5_cc_get_name(context, ccache), pwd->pw_uid, pwd->pw_gid)) {
156 syslog(LOG_AUTH|LOG_DEBUG, "chown: %s",
157 krb5_get_err_text(context, errno));
162 if (krb5_config_get_bool(context, NULL,
167 krb5_creds mcred, cred;
170 krb5_get_default_realm(context, &realm);
171 krb5_make_principal(context, &mcred.server, realm,
176 ret = krb5_cc_retrieve_cred(context, ccache, 0, &mcred, &cred);
178 ret = krb524_convert_creds_kdc(context, ccache, &cred, &c);
180 krb5_warn(context, ret, "converting creds");
182 set_krbtkfile(pwd->pw_uid);
183 tf_setup(&c, c.pname, c.pinst);
185 memset(&c, 0, sizeof(c));
186 krb5_free_creds_contents(context, &cred);
188 syslog(LOG_AUTH|LOG_DEBUG, "krb5_cc_retrieve_cred: %s",
189 krb5_get_err_text(context, ret));
191 krb5_free_principal(context, mcred.server);
193 if (!pag_set && k_hasafs()) {
196 krb5_afslog_uid_home(context, ccache, NULL, NULL,
197 pwd->pw_uid, pwd->pw_dir);
202 printf ("%s\n", krb5_get_err_text (context, ret));
209 verify_krb4(struct passwd *pwd,
215 char lrealm[REALM_SZ];
217 if (krb_get_lrealm (lrealm, 1) != KFAILURE) {
218 set_krbtkfile(pwd->pw_uid);
219 ret = krb_verify_user (pwd->pw_name, "", lrealm, password,
220 KRB_VERIFY_SECURE, NULL);
221 if (ret == KSUCCESS) {
222 if (!pag_set && k_hasafs()) {
225 krb_afslog_uid_home (0, 0, pwd->pw_uid, pwd->pw_dir);
228 printf ("%s\n", krb_get_err_text (ret));
235 afs_verify(char *name,
241 struct passwd *pwd = k_getpwnam (name);
246 ret = unix_verify_user (name, password);
249 ret = verify_krb5(pwd, password, exp, quiet);
253 ret = verify_krb4(pwd, password, exp, quiet);
259 afs_gettktstring (void)
264 if (!correct_tkfilename) {
265 ptr = getenv("LOGNAME");
266 if (ptr != NULL && ((pwd = getpwnam(ptr)) != NULL)) {
267 set_krb5ccname(pwd->pw_uid);
269 set_krbtkfile(pwd->pw_uid);
270 if (!pag_set && k_hasafs()) {
276 set_spec_krbtkfile();
280 setenv("KRB5CCNAME",krb5ccname,1);
283 setenv("KRBTKFILE",krbtkfile,1);