=================================================================== RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/auth-krb5.c,v retrieving revision 1.9.2.1 retrieving revision 1.9.2.2 diff -u -r1.9.2.1 -r1.9.2.2 --- src/usr.bin/ssh/auth-krb5.c 2003/04/01 00:12:13 1.9.2.1 +++ src/usr.bin/ssh/auth-krb5.c 2003/09/16 21:20:24 1.9.2.2 @@ -28,7 +28,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: auth-krb5.c,v 1.9.2.1 2003/04/01 00:12:13 margarida Exp $"); +RCSID("$OpenBSD: auth-krb5.c,v 1.9.2.2 2003/09/16 21:20:24 brad Exp $"); #include "ssh.h" #include "ssh1.h" @@ -64,151 +64,12 @@ return (0); } -/* - * Try krb5 authentication. server_user is passed for logging purposes - * only, in auth is received ticket, in client is returned principal - * from the ticket - */ int -auth_krb5(Authctxt *authctxt, krb5_data *auth, char **client, krb5_data *reply) +auth_krb5_password(Authctxt *authctxt, const char *password) { krb5_error_code problem; - krb5_principal server; - krb5_ticket *ticket; - int fd, ret; - - ret = 0; - server = NULL; - ticket = NULL; - reply->length = 0; - - problem = krb5_init(authctxt); - if (problem) - goto err; - - problem = krb5_auth_con_init(authctxt->krb5_ctx, - &authctxt->krb5_auth_ctx); - if (problem) - goto err; - - fd = packet_get_connection_in(); - problem = krb5_auth_con_setaddrs_from_fd(authctxt->krb5_ctx, - authctxt->krb5_auth_ctx, &fd); - if (problem) - goto err; - - problem = krb5_sname_to_principal(authctxt->krb5_ctx, NULL, NULL, - KRB5_NT_SRV_HST, &server); - if (problem) - goto err; - - problem = krb5_rd_req(authctxt->krb5_ctx, &authctxt->krb5_auth_ctx, - auth, server, NULL, NULL, &ticket); - if (problem) - goto err; - - problem = krb5_copy_principal(authctxt->krb5_ctx, ticket->client, - &authctxt->krb5_user); - if (problem) - goto err; - - /* if client wants mutual auth */ - problem = krb5_mk_rep(authctxt->krb5_ctx, authctxt->krb5_auth_ctx, - reply); - if (problem) - goto err; - - /* Check .k5login authorization now. */ - if (!krb5_kuserok(authctxt->krb5_ctx, authctxt->krb5_user, - authctxt->pw->pw_name)) - goto err; - - if (client) - krb5_unparse_name(authctxt->krb5_ctx, authctxt->krb5_user, - client); - - ret = 1; - err: - if (server) - krb5_free_principal(authctxt->krb5_ctx, server); - if (ticket) - krb5_free_ticket(authctxt->krb5_ctx, ticket); - if (!ret && reply->length) { - xfree(reply->data); - memset(reply, 0, sizeof(*reply)); - } - - if (problem) { - if (authctxt->krb5_ctx != NULL) - debug("Kerberos v5 authentication failed: %s", - krb5_get_err_text(authctxt->krb5_ctx, problem)); - else - debug("Kerberos v5 authentication failed: %d", - problem); - } - - return (ret); -} - -int -auth_krb5_tgt(Authctxt *authctxt, krb5_data *tgt) -{ - krb5_error_code problem; krb5_ccache ccache = NULL; - char *pname; - if (authctxt->pw == NULL || authctxt->krb5_user == NULL) - return (0); - - temporarily_use_uid(authctxt->pw); - - problem = krb5_cc_gen_new(authctxt->krb5_ctx, &krb5_fcc_ops, &ccache); - if (problem) - goto fail; - - problem = krb5_cc_initialize(authctxt->krb5_ctx, ccache, - authctxt->krb5_user); - if (problem) - goto fail; - - problem = krb5_rd_cred2(authctxt->krb5_ctx, authctxt->krb5_auth_ctx, - ccache, tgt); - if (problem) - goto fail; - - authctxt->krb5_fwd_ccache = ccache; - ccache = NULL; - - authctxt->krb5_ticket_file = (char *)krb5_cc_get_name(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache); - - problem = krb5_unparse_name(authctxt->krb5_ctx, authctxt->krb5_user, - &pname); - if (problem) - goto fail; - - debug("Kerberos v5 TGT accepted (%s)", pname); - - restore_uid(); - - return (1); - - fail: - if (problem) - debug("Kerberos v5 TGT passing failed: %s", - krb5_get_err_text(authctxt->krb5_ctx, problem)); - if (ccache) - krb5_cc_destroy(authctxt->krb5_ctx, ccache); - - restore_uid(); - - return (0); -} - -int -auth_krb5_password(Authctxt *authctxt, const char *password) -{ - krb5_error_code problem; - if (authctxt->pw == NULL) return (0); @@ -223,30 +84,47 @@ if (problem) goto out; - problem = krb5_cc_gen_new(authctxt->krb5_ctx, &krb5_mcc_ops, - &authctxt->krb5_fwd_ccache); + problem = krb5_cc_gen_new(authctxt->krb5_ctx, &krb5_mcc_ops, &ccache); if (problem) goto out; - problem = krb5_cc_initialize(authctxt->krb5_ctx, - authctxt->krb5_fwd_ccache, authctxt->krb5_user); + problem = krb5_cc_initialize(authctxt->krb5_ctx, ccache, + authctxt->krb5_user); if (problem) goto out; restore_uid(); + problem = krb5_verify_user(authctxt->krb5_ctx, authctxt->krb5_user, - authctxt->krb5_fwd_ccache, password, 1, NULL); + ccache, password, 1, NULL); + temporarily_use_uid(authctxt->pw); if (problem) goto out; - authctxt->krb5_ticket_file = (char *)krb5_cc_get_name(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache); + problem = krb5_cc_gen_new(authctxt->krb5_ctx, &krb5_fcc_ops, + &authctxt->krb5_fwd_ccache); + if (problem) + goto out; + problem = krb5_cc_copy_cache(authctxt->krb5_ctx, ccache, + authctxt->krb5_fwd_ccache); + krb5_cc_destroy(authctxt->krb5_ctx, ccache); + ccache = NULL; + if (problem) + goto out; + + authctxt->krb5_ticket_file = (char *)krb5_cc_get_name(authctxt->krb5_ctx, + authctxt->krb5_fwd_ccache); + out: restore_uid(); if (problem) { + if (ccache) + krb5_cc_destroy(authctxt->krb5_ctx, ccache); + if (authctxt->krb5_ctx != NULL) debug("Kerberos password authentication failed: %s", krb5_get_err_text(authctxt->krb5_ctx, problem)); @@ -277,11 +155,6 @@ if (authctxt->krb5_user) { krb5_free_principal(authctxt->krb5_ctx, authctxt->krb5_user); authctxt->krb5_user = NULL; - } - if (authctxt->krb5_auth_ctx) { - krb5_auth_con_free(authctxt->krb5_ctx, - authctxt->krb5_auth_ctx); - authctxt->krb5_auth_ctx = NULL; } if (authctxt->krb5_ctx) { krb5_free_context(authctxt->krb5_ctx);