*/
#include "includes.h"
-RCSID("$OpenBSD: auth-krb5.c,v 1.12 2003/08/28 12:54:34 markus Exp $");
+RCSID("$OpenBSD: auth-krb5.c,v 1.15 2003/11/21 11:57:02 djm Exp $");
#include "ssh.h"
#include "ssh1.h"
#include "auth.h"
#ifdef KRB5
-
#include <krb5.h>
extern ServerOptions options;
{
Authctxt *authctxt = (Authctxt *)context;
krb5_error_code problem;
- static int cleanup_registered = 0;
if (authctxt->krb5_ctx == NULL) {
problem = krb5_init_context(&authctxt->krb5_ctx);
if (problem)
return (problem);
+#ifdef KRB5_INIT_ETS
krb5_init_ets(authctxt->krb5_ctx);
- }
- if (!cleanup_registered) {
- fatal_add_cleanup(krb5_cleanup_proc, authctxt);
- cleanup_registered = 1;
+#endif
}
return (0);
}
krb5_principal server;
char ccname[40];
int tmpfd;
-#endif
+ mode_t old_umask;
+#endif
krb5_error_code problem;
krb5_ccache ccache = NULL;
+ int len;
- if (authctxt->pw == NULL)
+ if (!authctxt->valid)
return (0);
temporarily_use_uid(authctxt->pw);
goto out;
restore_uid();
-
+
problem = krb5_verify_user(authctxt->krb5_ctx, authctxt->krb5_user,
ccache, password, 1, NULL);
-
+
temporarily_use_uid(authctxt->pw);
if (problem)
goto out;
+
problem = krb5_cc_gen_new(authctxt->krb5_ctx, &krb5_fcc_ops,
&authctxt->krb5_fwd_ccache);
if (problem)
temporarily_use_uid(authctxt->pw);
if (problem)
goto out;
-
- if (!krb5_kuserok(authctxt->krb5_ctx, authctxt->krb5_user,
+
+ if (!krb5_kuserok(authctxt->krb5_ctx, authctxt->krb5_user,
authctxt->pw->pw_name)) {
problem = -1;
goto out;
- }
+ }
snprintf(ccname,sizeof(ccname),"FILE:/tmp/krb5cc_%d_XXXXXX",geteuid());
-
- if ((tmpfd = mkstemp(ccname+strlen("FILE:")))==-1) {
+
+ old_umask = umask(0177);
+ tmpfd = mkstemp(ccname + strlen("FILE:"));
+ umask(old_umask);
+ if (tmpfd == -1) {
logit("mkstemp(): %.100s", strerror(errno));
problem = errno;
goto out;
}
-
+
if (fchmod(tmpfd,S_IRUSR | S_IWUSR) == -1) {
logit("fchmod(): %.100s", strerror(errno));
close(tmpfd);
authctxt->krb5_user);
if (problem)
goto out;
-
+
problem= krb5_cc_store_cred(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache,
&creds);
if (problem)
goto out;
-#endif
+#endif
authctxt->krb5_ticket_file = (char *)krb5_cc_get_name(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache);
+ len = strlen(authctxt->krb5_ticket_file) + 6;
+ authctxt->krb5_ccname = xmalloc(len);
+ snprintf(authctxt->krb5_ccname, len, "FILE:%s",
+ authctxt->krb5_ticket_file);
+
+#ifdef USE_PAM
+ if (options.use_pam)
+ do_pam_putenv("KRB5CCNAME", authctxt->krb5_ccname);
+#endif
+
out:
restore_uid();
}
void
-krb5_cleanup_proc(void *context)
+krb5_cleanup_proc(Authctxt *authctxt)
{
- Authctxt *authctxt = (Authctxt *)context;
-
debug("krb5_cleanup_proc called");
if (authctxt->krb5_fwd_ccache) {
krb5_cc_destroy(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache);