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add krb5 support

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@5876 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Johan Danielsson
1999-04-08 12:36:16 +00:00
parent 3c25f88de6
commit 7246cf92ee
1 changed files with 152 additions and 30 deletions
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182
lib/auth/afskauthlib/verify.c
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 1995, 1996, 1997, 1998, 1999 Kungliga Tekniska H<>gskolan
* Copyright (c) 1995-1999 Kungliga Tekniska H<>gskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
@@ -43,13 +43,146 @@ RCSID("$Id$");
#include <unistd.h>
#include <sys/types.h>
#include <pwd.h>
#ifdef KRB5
#include <krb5.h>
#endif
#ifdef KRB4
#include <krb.h>
#include <kafs.h>
#endif
#include <roken.h>
/*
*
*/
#if 0
static char krb5ccname[128];
#endif
static char krbtkfile[128];
#ifdef KRB4
static void
set_krbtkfile(uid_t uid)
{
snprintf (krbtkfile, sizeof(krbtkfile), "%s%d", TKT_ROOT, (unsigned)uid);
krb_set_tkt_string (krbtkfile);
}
#endif
#ifdef KRB5
static int
verify_krb5(struct passwd *pwd,
char *password,
int32_t *exp,
int quiet)
{
krb5_context context;
krb5_error_code ret;
char ticket[128];
krb5_ccache ccache;
krb5_principal principal;
krb5_realm realm;
krb5_init_context(&context);
krb5_get_default_realm(context, &realm);
krb5_make_principal(context, &principal, realm, pwd->pw_name, NULL);
if(!krb5_kuserok(context, principal, pwd->pw_name)) {
syslog(LOG_AUTH|LOG_DEBUG, "krb5_kuserok failed");
goto out;
}
/* XXX this has to be the default cache name, since the KRB5CCNAME
environment variable isn't exported by login/xdm
*/
snprintf(ticket, sizeof(ticket), "FILE:/tmp/krb5cc_%d", pwd->pw_uid);
ret = krb5_cc_resolve(context, ticket, &ccache);
if(ret) {
syslog(LOG_AUTH|LOG_DEBUG, "krb5_cc_resolve: %s",
krb5_get_err_text(context, ret));
goto out;
}
ret = krb5_verify_user(context,
principal,
ccache,
password,
TRUE,
NULL);
if(ret) {
syslog(LOG_AUTH|LOG_DEBUG, "krb5_verify_user: %s",
krb5_get_err_text(context, ret));
goto out;
}
if(chown(krb5_cc_get_name(context, ccache), pwd->pw_uid, pwd->pw_gid)) {
syslog(LOG_AUTH|LOG_DEBUG, "chown: %s",
krb5_get_err_text(context, errno));
goto out;
}
#ifdef KRB4
{
CREDENTIALS c;
krb5_creds mcred, cred;
krb5_make_principal(context, &mcred.server, realm,
"krbtgt",
realm,
NULL);
ret = krb5_cc_retrieve_cred(context, ccache, 0, &mcred, &cred);
if(ret == 0) {
ret = krb524_convert_creds_kdc(context, &cred, &c);
if(ret)
krb5_warn(context, ret, "converting creds");
else {
set_krbtkfile(pwd->pw_uid);
tf_setup(&c, c.pname, c.pinst);
}
memset(&c, 0, sizeof(c));
krb5_free_creds_contents(context, &cred);
} else
syslog(LOG_AUTH|LOG_DEBUG, "krb5_cc_retrieve_cred: %s",
krb5_get_err_text(context, ret));
krb5_free_principal(context, mcred.server);
}
if (k_hasafs()) {
k_setpag();
krb5_afslog_uid_home(context, ccache, NULL, NULL,
pwd->pw_uid, pwd->pw_dir);
}
#endif
out:
if(ret && !quiet)
printf ("%s\n", krb5_get_err_text (context, ret));
return ret;
}
#endif
#ifdef KRB4
static int
verify_krb4(struct passwd *pwd,
char *password,
int32_t *exp,
int quiet)
{
int ret = 1;
char lrealm[REALM_SZ];
if (krb_get_lrealm (lrealm, 1) != KFAILURE) {
set_krbtkfile(pwd->pw_uid);
ret = krb_verify_user (pwd->pw_name, "", lrealm, password,
KRB_VERIFY_SECURE, NULL);
if (ret == KSUCCESS) {
if (k_hasafs()) {
k_setpag ();
krb_afslog_uid_home (0, 0, pwd->pw_uid, pwd->pw_dir);
}
} else if (!quiet)
printf ("%s\n", krb_get_err_text (ret));
}
return ret;
}
#endif
int
afs_verify(char *name,
@@ -57,35 +190,24 @@ afs_verify(char *name,
int32_t *exp,
int quiet)
{
int ret = 1;
char lrealm[REALM_SZ];
char tkt_string[MaxPathLen];
struct passwd *pwd;
if (krb_get_lrealm (lrealm, 1) != KFAILURE &&
(pwd = k_getpwnam (name)) != NULL) {
snprintf (tkt_string, sizeof(tkt_string),
"%s%d_%d", TKT_ROOT,
(unsigned)pwd->pw_uid, (unsigned)getpid());
krb_set_tkt_string (tkt_string);
ret = krb_verify_user (name, "", lrealm, password,
KRB_VERIFY_SECURE, NULL);
if (ret == KSUCCESS) {
if (k_hasafs()) {
k_setpag ();
krb_afslog_uid_home (0, 0, pwd->pw_uid, pwd->pw_dir);
}
} else if (!quiet)
printf ("%s\n", krb_get_err_text (ret));
}
if (ret)
ret = unix_verify_user (name, password);
return ret;
int ret = 1;
struct passwd *pwd = k_getpwnam (name);
if(pwd == NULL)
return 1;
#ifdef KRB5
ret = verify_krb5(pwd, password, exp, quiet);
#endif
#ifdef KRB4
if(ret)
ret = verify_krb4(pwd, password, exp, quiet);
#endif
if (ret)
ret = unix_verify_user (name, password);
return ret;
}
char *
afs_gettktstring (void)
{
return tkt_string ();
return krbtkfile;
}