diff options
author | djm@openbsd.org <djm@openbsd.org> | 2015-05-22 03:50:02 +0000 |
---|---|---|
committer | Damien Miller <djm@mindrot.org> | 2015-05-22 20:02:17 +1000 |
commit | d7c31da4d42c115843edee2074d7d501f8804420 (patch) | |
tree | 9d41af43b92f502fcce33c184064daa712d941cc /gss-serv.c | |
parent | aa72196a00be6e0b666215edcffbc10af234cb0e (diff) |
upstream commit
add knob to relax GSSAPI host credential check for
multihomed hosts bz#928, patch by Simon Wilkinson; ok dtucker
(kerberos/GSSAPI is not compiled by default on OpenBSD)
Upstream-ID: 15ddf1c6f7fd9d98eea9962f480079ae3637285d
Diffstat (limited to 'gss-serv.c')
-rw-r--r-- | gss-serv.c | 40 |
1 files changed, 25 insertions, 15 deletions
@@ -1,4 +1,4 @@ -/* $OpenBSD: gss-serv.c,v 1.28 2015/01/20 23:14:00 deraadt Exp $ */ +/* $OpenBSD: gss-serv.c,v 1.29 2015/05/22 03:50:02 djm Exp $ */ /* * Copyright (c) 2001-2003 Simon Wilkinson. All rights reserved. @@ -44,9 +44,12 @@ #include "channels.h" #include "session.h" #include "misc.h" +#include "servconf.h" #include "ssh-gss.h" +extern ServerOptions options; + static ssh_gssapi_client gssapi_client = { GSS_C_EMPTY_BUFFER, GSS_C_EMPTY_BUFFER, GSS_C_NO_CREDENTIAL, NULL, {NULL, NULL, NULL, NULL}}; @@ -99,25 +102,32 @@ ssh_gssapi_acquire_cred(Gssctxt *ctx) char lname[NI_MAXHOST]; gss_OID_set oidset; - gss_create_empty_oid_set(&status, &oidset); - gss_add_oid_set_member(&status, ctx->oid, &oidset); + if (options.gss_strict_acceptor) { + gss_create_empty_oid_set(&status, &oidset); + gss_add_oid_set_member(&status, ctx->oid, &oidset); - if (gethostname(lname, sizeof(lname))) { - gss_release_oid_set(&status, &oidset); - return (-1); - } + if (gethostname(lname, MAXHOSTNAMELEN)) { + gss_release_oid_set(&status, &oidset); + return (-1); + } + + if (GSS_ERROR(ssh_gssapi_import_name(ctx, lname))) { + gss_release_oid_set(&status, &oidset); + return (ctx->major); + } + + if ((ctx->major = gss_acquire_cred(&ctx->minor, + ctx->name, 0, oidset, GSS_C_ACCEPT, &ctx->creds, + NULL, NULL))) + ssh_gssapi_error(ctx); - if (GSS_ERROR(ssh_gssapi_import_name(ctx, lname))) { gss_release_oid_set(&status, &oidset); return (ctx->major); + } else { + ctx->name = GSS_C_NO_NAME; + ctx->creds = GSS_C_NO_CREDENTIAL; } - - if ((ctx->major = gss_acquire_cred(&ctx->minor, - ctx->name, 0, oidset, GSS_C_ACCEPT, &ctx->creds, NULL, NULL))) - ssh_gssapi_error(ctx); - - gss_release_oid_set(&status, &oidset); - return (ctx->major); + return GSS_S_COMPLETE; } /* Privileged */ |