diff options
Diffstat (limited to 'usr.bin')
| -rw-r--r-- | usr.bin/ssh/auth-krb4.c | 368 | ||||
| -rw-r--r-- | usr.bin/ssh/auth-passwd.c | 10 | ||||
| -rw-r--r-- | usr.bin/ssh/auth.h | 19 | ||||
| -rw-r--r-- | usr.bin/ssh/auth1.c | 47 | ||||
| -rw-r--r-- | usr.bin/ssh/monitor.c | 54 | ||||
| -rw-r--r-- | usr.bin/ssh/monitor.h | 3 | ||||
| -rw-r--r-- | usr.bin/ssh/monitor_wrap.c | 38 | ||||
| -rw-r--r-- | usr.bin/ssh/monitor_wrap.h | 5 | ||||
| -rw-r--r-- | usr.bin/ssh/radix.c | 158 | ||||
| -rw-r--r-- | usr.bin/ssh/radix.h | 28 | ||||
| -rw-r--r-- | usr.bin/ssh/readconf.c | 17 | ||||
| -rw-r--r-- | usr.bin/ssh/readconf.h | 3 | ||||
| -rw-r--r-- | usr.bin/ssh/servconf.c | 24 | ||||
| -rw-r--r-- | usr.bin/ssh/servconf.h | 3 | ||||
| -rw-r--r-- | usr.bin/ssh/session.c | 57 | ||||
| -rw-r--r-- | usr.bin/ssh/ssh.1 | 4 | ||||
| -rw-r--r-- | usr.bin/ssh/ssh.c | 9 | ||||
| -rw-r--r-- | usr.bin/ssh/ssh.h | 5 | ||||
| -rw-r--r-- | usr.bin/ssh/ssh_config.5 | 10 | ||||
| -rw-r--r-- | usr.bin/ssh/sshconnect1.c | 287 | ||||
| -rw-r--r-- | usr.bin/ssh/sshd.c | 21 | ||||
| -rw-r--r-- | usr.bin/ssh/sshd_config.5 | 9 |
22 files changed, 37 insertions, 1142 deletions
diff --git a/usr.bin/ssh/auth-krb4.c b/usr.bin/ssh/auth-krb4.c deleted file mode 100644 index 9e1c800bee9..00000000000 --- a/usr.bin/ssh/auth-krb4.c +++ /dev/null @@ -1,368 +0,0 @@ -/* - * Copyright (c) 1999 Dug Song. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "includes.h" -RCSID("$OpenBSD: auth-krb4.c,v 1.30 2003/04/08 20:21:28 itojun Exp $"); - -#include "ssh.h" -#include "ssh1.h" -#include "packet.h" -#include "xmalloc.h" -#include "log.h" -#include "servconf.h" -#include "uidswap.h" -#include "auth.h" - -#ifdef AFS -#include "radix.h" -#endif - -#ifdef KRB4 -extern ServerOptions options; - -static int -krb4_init(void *context) -{ - static int cleanup_registered = 0; - Authctxt *authctxt = (Authctxt *)context; - const char *tkt_root = TKT_ROOT; - struct stat st; - int fd; - - if (!authctxt->krb4_ticket_file) { - /* Set unique ticket string manually since we're still root. */ - authctxt->krb4_ticket_file = xmalloc(MAXPATHLEN); -#ifdef AFS - if (lstat("/ticket", &st) != -1) - tkt_root = "/ticket/"; -#endif /* AFS */ - snprintf(authctxt->krb4_ticket_file, MAXPATHLEN, "%s%u_%ld", - tkt_root, authctxt->pw->pw_uid, (long)getpid()); - krb_set_tkt_string(authctxt->krb4_ticket_file); - } - /* Register ticket cleanup in case of fatal error. */ - if (!cleanup_registered) { - fatal_add_cleanup(krb4_cleanup_proc, authctxt); - cleanup_registered = 1; - } - /* Try to create our ticket file. */ - if ((fd = mkstemp(authctxt->krb4_ticket_file)) != -1) { - close(fd); - return (1); - } - /* Ticket file exists - make sure user owns it (just passed ticket). */ - if (lstat(authctxt->krb4_ticket_file, &st) != -1) { - if (st.st_mode == (S_IFREG | S_IRUSR | S_IWUSR) && - st.st_uid == authctxt->pw->pw_uid) - return (1); - } - /* Failure - cancel cleanup function, leaving ticket for inspection. */ - logit("WARNING: bad ticket file %s", authctxt->krb4_ticket_file); - - fatal_remove_cleanup(krb4_cleanup_proc, authctxt); - cleanup_registered = 0; - - xfree(authctxt->krb4_ticket_file); - authctxt->krb4_ticket_file = NULL; - - return (0); -} - -/* - * try krb4 authentication, - * return 1 on success, 0 on failure, -1 if krb4 is not available - */ -int -auth_krb4_password(Authctxt *authctxt, const char *password) -{ - AUTH_DAT adata; - KTEXT_ST tkt; - struct hostent *hp; - struct passwd *pw; - char localhost[MAXHOSTNAMELEN], phost[INST_SZ], realm[REALM_SZ]; - u_int32_t faddr; - int r; - - if ((pw = authctxt->pw) == NULL) - return (0); - - /* - * Try Kerberos password authentication only for non-root - * users and only if Kerberos is installed. - */ - if (pw->pw_uid != 0 && krb_get_lrealm(realm, 1) == KSUCCESS) { - /* Set up our ticket file. */ - if (!krb4_init(authctxt)) { - logit("Couldn't initialize Kerberos ticket file for %s!", - pw->pw_name); - goto failure; - } - /* Try to get TGT using our password. */ - r = krb_get_pw_in_tkt((char *) pw->pw_name, "", realm, - "krbtgt", realm, DEFAULT_TKT_LIFE, (char *)password); - if (r != INTK_OK) { - debug("Kerberos v4 password authentication for %s " - "failed: %s", pw->pw_name, krb_err_txt[r]); - goto failure; - } - /* Successful authentication. */ - chown(tkt_string(), pw->pw_uid, pw->pw_gid); - - /* - * Now that we have a TGT, try to get a local - * "rcmd" ticket to ensure that we are not talking - * to a bogus Kerberos server. - */ - gethostname(localhost, sizeof(localhost)); - strlcpy(phost, (char *)krb_get_phost(localhost), - sizeof(phost)); - r = krb_mk_req(&tkt, KRB4_SERVICE_NAME, phost, realm, 33); - - if (r == KSUCCESS) { - if ((hp = gethostbyname(localhost)) == NULL) { - logit("Couldn't get local host address!"); - goto failure; - } - memmove((void *)&faddr, (void *)hp->h_addr, - sizeof(faddr)); - - /* Verify our "rcmd" ticket. */ - r = krb_rd_req(&tkt, KRB4_SERVICE_NAME, phost, - faddr, &adata, ""); - if (r == RD_AP_UNDEC) { - /* - * Probably didn't have a srvtab on - * localhost. Disallow login. - */ - logit("Kerberos v4 TGT for %s unverifiable, " - "no srvtab installed? krb_rd_req: %s", - pw->pw_name, krb_err_txt[r]); - goto failure; - } else if (r != KSUCCESS) { - logit("Kerberos v4 %s ticket unverifiable: %s", - KRB4_SERVICE_NAME, krb_err_txt[r]); - goto failure; - } - } else if (r == KDC_PR_UNKNOWN) { - /* - * Disallow login if no rcmd service exists, and - * log the error. - */ - logit("Kerberos v4 TGT for %s unverifiable: %s; %s.%s " - "not registered, or srvtab is wrong?", pw->pw_name, - krb_err_txt[r], KRB4_SERVICE_NAME, phost); - goto failure; - } else { - /* - * TGT is bad, forget it. Possibly spoofed! - */ - debug("WARNING: Kerberos v4 TGT possibly spoofed " - "for %s: %s", pw->pw_name, krb_err_txt[r]); - goto failure; - } - /* Authentication succeeded. */ - return (1); - } else - /* Logging in as root or no local Kerberos realm. */ - debug("Unable to authenticate to Kerberos."); - - failure: - krb4_cleanup_proc(authctxt); - - if (!options.kerberos_or_local_passwd) - return (0); - - /* Fall back to ordinary passwd authentication. */ - return (-1); -} - -void -krb4_cleanup_proc(void *context) -{ - Authctxt *authctxt = (Authctxt *)context; - debug("krb4_cleanup_proc called"); - if (authctxt->krb4_ticket_file) { - (void) dest_tkt(); - xfree(authctxt->krb4_ticket_file); - authctxt->krb4_ticket_file = NULL; - } -} - -int -auth_krb4(Authctxt *authctxt, KTEXT auth, char **client, KTEXT reply) -{ - AUTH_DAT adat = {0}; - Key_schedule schedule; - struct sockaddr_in local, foreign; - char instance[INST_SZ]; - socklen_t slen; - u_int cksum; - int r, s; - - s = packet_get_connection_in(); - - slen = sizeof(local); - memset(&local, 0, sizeof(local)); - if (getsockname(s, (struct sockaddr *) & local, &slen) < 0) - debug("getsockname failed: %.100s", strerror(errno)); - slen = sizeof(foreign); - memset(&foreign, 0, sizeof(foreign)); - if (getpeername(s, (struct sockaddr *) & foreign, &slen) < 0) { - debug("getpeername failed: %.100s", strerror(errno)); - fatal_cleanup(); - } - instance[0] = '*'; - instance[1] = 0; - - /* Get the encrypted request, challenge, and session key. */ - if ((r = krb_rd_req(auth, KRB4_SERVICE_NAME, instance, - 0, &adat, ""))) { - debug("Kerberos v4 krb_rd_req: %.100s", krb_err_txt[r]); - return (0); - } - des_key_sched((des_cblock *) adat.session, schedule); - - *client = xmalloc(MAX_K_NAME_SZ); - (void) snprintf(*client, MAX_K_NAME_SZ, "%s%s%s@%s", adat.pname, - *adat.pinst ? "." : "", adat.pinst, adat.prealm); - - /* Check ~/.klogin authorization now. */ - if (kuserok(&adat, authctxt->user) != KSUCCESS) { - logit("Kerberos v4 .klogin authorization failed for %s to " - "account %s", *client, authctxt->user); - xfree(*client); - *client = NULL; - return (0); - } - /* Increment the checksum, and return it encrypted with the - session key. */ - cksum = adat.checksum + 1; - cksum = htonl(cksum); - - /* If we can't successfully encrypt the checksum, we send back an - empty message, admitting our failure. */ - if ((r = krb_mk_priv((u_char *) & cksum, reply->dat, sizeof(cksum) + 1, - schedule, &adat.session, &local, &foreign)) < 0) { - debug("Kerberos v4 mk_priv: (%d) %s", r, krb_err_txt[r]); - reply->dat[0] = 0; - reply->length = 0; - } else - reply->length = r; - - /* Clear session key. */ - memset(&adat.session, 0, sizeof(adat.session)); - return (1); -} -#endif /* KRB4 */ - -#ifdef AFS -int -auth_krb4_tgt(Authctxt *authctxt, const char *string) -{ - CREDENTIALS creds; - struct passwd *pw; - - if ((pw = authctxt->pw) == NULL) - goto failure; - - temporarily_use_uid(pw); - - if (!radix_to_creds(string, &creds)) { - logit("Protocol error decoding Kerberos v4 TGT"); - goto failure; - } - if (strncmp(creds.service, "", 1) == 0) /* backward compatibility */ - strlcpy(creds.service, "krbtgt", sizeof creds.service); - - if (strcmp(creds.service, "krbtgt")) { - logit("Kerberos v4 TGT (%s%s%s@%s) rejected for %s", - creds.pname, creds.pinst[0] ? "." : "", creds.pinst, - creds.realm, pw->pw_name); - goto failure; - } - if (!krb4_init(authctxt)) - goto failure; - - if (in_tkt(creds.pname, creds.pinst) != KSUCCESS) - goto failure; - - if (save_credentials(creds.service, creds.instance, creds.realm, - creds.session, creds.lifetime, creds.kvno, &creds.ticket_st, - creds.issue_date) != KSUCCESS) { - debug("Kerberos v4 TGT refused: couldn't save credentials"); - goto failure; - } - /* Successful authentication, passed all checks. */ - chown(tkt_string(), pw->pw_uid, pw->pw_gid); - - debug("Kerberos v4 TGT accepted (%s%s%s@%s)", - creds.pname, creds.pinst[0] ? "." : "", creds.pinst, creds.realm); - memset(&creds, 0, sizeof(creds)); - - restore_uid(); - - return (1); - - failure: - krb4_cleanup_proc(authctxt); - memset(&creds, 0, sizeof(creds)); - restore_uid(); - - return (0); -} - -int -auth_afs_token(Authctxt *authctxt, const char *token_string) -{ - CREDENTIALS creds; - struct passwd *pw; - uid_t uid; - - if ((pw = authctxt->pw) == NULL) - return (0); - - if (!radix_to_creds(token_string, &creds)) { - logit("Protocol error decoding AFS token"); - return (0); - } - if (strncmp(creds.service, "", 1) == 0) /* backward compatibility */ - strlcpy(creds.service, "afs", sizeof creds.service); - - if (strncmp(creds.pname, "AFS ID ", 7) == 0) - uid = atoi(creds.pname + 7); - else - uid = pw->pw_uid; - - if (kafs_settoken(creds.realm, uid, &creds)) { - logit("AFS token (%s@%s) rejected for %s", - creds.pname, creds.realm, pw->pw_name); - memset(&creds, 0, sizeof(creds)); - return (0); - } - debug("AFS token accepted (%s@%s)", creds.pname, creds.realm); - memset(&creds, 0, sizeof(creds)); - - return (1); -} -#endif /* AFS */ diff --git a/usr.bin/ssh/auth-passwd.c b/usr.bin/ssh/auth-passwd.c index d0295fb5b78..5eb8ac6065e 100644 --- a/usr.bin/ssh/auth-passwd.c +++ b/usr.bin/ssh/auth-passwd.c @@ -36,7 +36,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: auth-passwd.c,v 1.27 2002/05/24 16:45:16 stevesk Exp $"); +RCSID("$OpenBSD: auth-passwd.c,v 1.28 2003/07/22 13:35:22 markus Exp $"); #include "packet.h" #include "log.h" @@ -70,14 +70,6 @@ auth_password(Authctxt *authctxt, const char *password) /* Fall back to ordinary passwd authentication. */ } #endif -#ifdef KRB4 - if (options.kerberos_authentication == 1) { - int ret = auth_krb4_password(authctxt, password); - if (ret == 1 || ret == 0) - return ret; - /* Fall back to ordinary passwd authentication. */ - } -#endif #ifdef BSD_AUTH if (auth_userokay(pw->pw_name, authctxt->style, "auth-ssh", (char *)password) == 0) diff --git a/usr.bin/ssh/auth.h b/usr.bin/ssh/auth.h index 75da99db4d9..6e496dd244d 100644 --- a/usr.bin/ssh/auth.h +++ b/usr.bin/ssh/auth.h @@ -1,4 +1,4 @@ -/* $OpenBSD: auth.h,v 1.42 2003/04/16 14:35:27 markus Exp $ */ +/* $OpenBSD: auth.h,v 1.43 2003/07/22 13:35:22 markus Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. @@ -60,9 +60,6 @@ struct Authctxt { #ifdef BSD_AUTH auth_session_t *as; #endif -#ifdef KRB4 - char *krb4_ticket_file; -#endif #ifdef KRB5 krb5_context krb5_ctx; krb5_auth_context krb5_auth_ctx; @@ -117,20 +114,6 @@ int auth_rhosts_rsa_key_allowed(struct passwd *, char *, char *, Key *); int hostbased_key_allowed(struct passwd *, const char *, char *, Key *); int user_key_allowed(struct passwd *, Key *); -#ifdef KRB4 -#include <krb.h> -int auth_krb4(Authctxt *, KTEXT, char **, KTEXT); -int auth_krb4_password(Authctxt *, const char *); -void krb4_cleanup_proc(void *); - -#ifdef AFS -#include <kafs.h> -int auth_krb4_tgt(Authctxt *, const char *); -int auth_afs_token(Authctxt *, const char *); -#endif /* AFS */ - -#endif /* KRB4 */ - #ifdef KRB5 int auth_krb5(Authctxt *authctxt, krb5_data *auth, char **client, krb5_data *); int auth_krb5_tgt(Authctxt *authctxt, krb5_data *tgt); diff --git a/usr.bin/ssh/auth1.c b/usr.bin/ssh/auth1.c index 672b5ed5ec0..3dd09a34f3b 100644 --- a/usr.bin/ssh/auth1.c +++ b/usr.bin/ssh/auth1.c @@ -10,7 +10,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: auth1.c,v 1.48 2003/04/08 20:21:28 itojun Exp $"); +RCSID("$OpenBSD: auth1.c,v 1.49 2003/07/22 13:35:22 markus Exp $"); #include "xmalloc.h" #include "rsa.h" @@ -49,7 +49,7 @@ get_authname(int type) case SSH_CMSG_AUTH_TIS: case SSH_CMSG_AUTH_TIS_RESPONSE: return "challenge-response"; -#if defined(KRB4) || defined(KRB5) +#ifdef KRB5 case SSH_CMSG_AUTH_KERBEROS: return "kerberos"; #endif @@ -81,7 +81,7 @@ do_authloop(Authctxt *authctxt) /* If the user has no password, accept authentication immediately. */ if (options.password_authentication && -#if defined(KRB4) || defined(KRB5) +#ifdef KRB5 (!options.kerberos_authentication || options.kerberos_or_local_passwd) && #endif PRIVSEP(auth_password(authctxt, ""))) { @@ -106,7 +106,7 @@ do_authloop(Authctxt *authctxt) /* Process the packet. */ switch (type) { -#if defined(KRB4) || defined(KRB5) +#ifdef KRB5 case SSH_CMSG_AUTH_KERBEROS: if (!options.kerberos_authentication) { verbose("Kerberos authentication disabled."); @@ -114,32 +114,7 @@ do_authloop(Authctxt *authctxt) char *kdata = packet_get_string(&dlen); packet_check_eom(); - if (kdata[0] == 4) { /* KRB_PROT_VERSION */ -#ifdef KRB4 - KTEXT_ST tkt, reply; - tkt.length = dlen; - if (tkt.length < MAX_KTXT_LEN) - memcpy(tkt.dat, kdata, tkt.length); - - if (PRIVSEP(auth_krb4(authctxt, &tkt, - &client_user, &reply))) { - authenticated = 1; - snprintf(info, sizeof(info), - " tktuser %.100s", - client_user); - - packet_start( - SSH_SMSG_AUTH_KERBEROS_RESPONSE); - packet_put_string((char *) - reply.dat, reply.length); - packet_send(); - packet_write_wait(); - - xfree(client_user); - } -#endif /* KRB4 */ - } else { -#ifdef KRB5 + if (kdata[0] != 4) { /* KRB_PROT_VERSION */ krb5_data tkt, reply; tkt.length = dlen; tkt.data = kdata; @@ -163,24 +138,14 @@ do_authloop(Authctxt *authctxt) xfree(reply.data); xfree(client_user); } -#endif /* KRB5 */ } xfree(kdata); } break; -#endif /* KRB4 || KRB5 */ - -#if defined(AFS) || defined(KRB5) - /* XXX - punt on backward compatibility here. */ case SSH_CMSG_HAVE_KERBEROS_TGT: packet_send_debug("Kerberos TGT passing disabled before authentication."); break; -#ifdef AFS - case SSH_CMSG_HAVE_AFS_TOKEN: - packet_send_debug("AFS token passing disabled before authentication."); - break; -#endif /* AFS */ -#endif /* AFS || KRB5 */ +#endif case SSH_CMSG_AUTH_RHOSTS: if (!options.rhosts_authentication) { diff --git a/usr.bin/ssh/monitor.c b/usr.bin/ssh/monitor.c index 61764bb3be7..9fa166b075e 100644 --- a/usr.bin/ssh/monitor.c +++ b/usr.bin/ssh/monitor.c @@ -25,7 +25,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: monitor.c,v 1.44 2003/06/24 08:23:46 markus Exp $"); +RCSID("$OpenBSD: monitor.c,v 1.45 2003/07/22 13:35:22 markus Exp $"); #include <openssl/dh.h> @@ -116,9 +116,6 @@ int mm_answer_rsa_response(int, Buffer *); int mm_answer_sesskey(int, Buffer *); int mm_answer_sessid(int, Buffer *); -#ifdef KRB4 -int mm_answer_krb4(int, Buffer *); -#endif #ifdef KRB5 int mm_answer_krb5(int, Buffer *); #endif @@ -200,9 +197,6 @@ struct mon_table mon_dispatch_proto15[] = { {MONITOR_REQ_SKEYQUERY, MON_ISAUTH, mm_answer_skeyquery}, {MONITOR_REQ_SKEYRESPOND, MON_AUTH, mm_answer_skeyrespond}, #endif -#ifdef KRB4 - {MONITOR_REQ_KRB4, MON_ONCE|MON_AUTH, mm_answer_krb4}, -#endif #ifdef KRB5 {MONITOR_REQ_KRB5, MON_ONCE|MON_AUTH, mm_answer_krb5}, #endif @@ -1284,52 +1278,6 @@ mm_answer_rsa_response(int socket, Buffer *m) return (success); } -#ifdef KRB4 -int -mm_answer_krb4(int socket, Buffer *m) -{ - KTEXT_ST auth, reply; - char *client, *p; - int success; - u_int alen; - - reply.length = auth.length = 0; - - p = buffer_get_string(m, &alen); - if (alen >= MAX_KTXT_LEN) - fatal("%s: auth too large", __func__); - memcpy(auth.dat, p, alen); - auth.length = alen; - memset(p, 0, alen); - xfree(p); - - success = options.kerberos_authentication && - authctxt->valid && - auth_krb4(authctxt, &auth, &client, &reply); - - memset(auth.dat, 0, alen); - buffer_clear(m); - buffer_put_int(m, success); - - if (success) { - buffer_put_cstring(m, client); - buffer_put_string(m, reply.dat, reply.length); - if (client) - xfree(client); - if (reply.length) - memset(reply.dat, 0, reply.length); - } - - debug3("%s: sending result %d", __func__, success); - mm_request_send(socket, MONITOR_ANS_KRB4, m); - - auth_method = "kerberos"; - - /* Causes monitor loop to terminate if authenticated */ - return (success); -} -#endif - #ifdef KRB5 int mm_answer_krb5(int socket, Buffer *m) diff --git a/usr.bin/ssh/monitor.h b/usr.bin/ssh/monitor.h index abd07300c29..0d920308b89 100644 --- a/usr.bin/ssh/monitor.h +++ b/usr.bin/ssh/monitor.h @@ -1,4 +1,4 @@ -/* $OpenBSD: monitor.h,v 1.8 2002/09/26 11:38:43 markus Exp $ */ +/* $OpenBSD: monitor.h,v 1.9 2003/07/22 13:35:22 markus Exp $ */ /* * Copyright 2002 Niels Provos <provos@citi.umich.edu> @@ -49,7 +49,6 @@ enum monitor_reqtype { MONITOR_REQ_RSAKEYALLOWED, MONITOR_ANS_RSAKEYALLOWED, MONITOR_REQ_RSACHALLENGE, MONITOR_ANS_RSACHALLENGE, MONITOR_REQ_RSARESPONSE, MONITOR_ANS_RSARESPONSE, - MONITOR_REQ_KRB4, MONITOR_ANS_KRB4, MONITOR_REQ_KRB5, MONITOR_ANS_KRB5, MONITOR_REQ_TERM }; diff --git a/usr.bin/ssh/monitor_wrap.c b/usr.bin/ssh/monitor_wrap.c index 8538e5ea3b5..0fd5fd78644 100644 --- a/usr.bin/ssh/monitor_wrap.c +++ b/usr.bin/ssh/monitor_wrap.c @@ -25,7 +25,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: monitor_wrap.c,v 1.27 2003/06/28 16:23:06 deraadt Exp $"); +RCSID("$OpenBSD: monitor_wrap.c,v 1.28 2003/07/22 13:35:22 markus Exp $"); #include <openssl/bn.h> #include <openssl/dh.h> @@ -938,42 +938,6 @@ mm_auth_rsa_verify_response(Key *key, BIGNUM *p, u_char response[16]) return (success); } -#ifdef KRB4 -int -mm_auth_krb4(Authctxt *authctxt, void *_auth, char **client, void *_reply) -{ - KTEXT auth, reply; - Buffer m; - u_int rlen; - int success = 0; - char *p; - - debug3("%s entering", __func__); - auth = _auth; - reply = _reply; - - buffer_init(&m); - buffer_put_string(&m, auth->dat, auth->length); - - mm_request_send(pmonitor->m_recvfd, MONITOR_REQ_KRB4, &m); - mm_request_receive_expect(pmonitor->m_recvfd, MONITOR_ANS_KRB4, &m); - - success = buffer_get_int(&m); - if (success) { - *client = buffer_get_string(&m, NULL); - p = buffer_get_string(&m, &rlen); - if (rlen >= MAX_KTXT_LEN) - fatal("%s: reply from monitor too large", __func__); - reply->length = rlen; - memcpy(reply->dat, p, rlen); - memset(p, 0, rlen); - xfree(p); - } - buffer_free(&m); - return (success); -} -#endif - #ifdef KRB5 int mm_auth_krb5(void *ctx, void *argp, char **userp, void *resp) diff --git a/usr.bin/ssh/monitor_wrap.h b/usr.bin/ssh/monitor_wrap.h index 65e0464d507..68e7e7b86d1 100644 --- a/usr.bin/ssh/monitor_wrap.h +++ b/usr.bin/ssh/monitor_wrap.h @@ -1,4 +1,4 @@ -/* $OpenBSD: monitor_wrap.h,v 1.8 2002/09/26 11:38:43 markus Exp $ */ +/* $OpenBSD: monitor_wrap.h,v 1.9 2003/07/22 13:35:22 markus Exp $ */ /* * Copyright 2002 Niels Provos <provos@citi.umich.edu> @@ -80,9 +80,6 @@ int mm_skey_query(void *, char **, char **, u_int *, char ***, u_int **); int mm_skey_respond(void *, u_int, char **); /* auth_krb */ -#ifdef KRB4 -int mm_auth_krb4(struct Authctxt *, void *, char **, void *); -#endif #ifdef KRB5 /* auth and reply are really krb5_data objects, but we don't want to * include all of the krb5 headers here */ diff --git a/usr.bin/ssh/radix.c b/usr.bin/ssh/radix.c deleted file mode 100644 index c680d6bf3f6..00000000000 --- a/usr.bin/ssh/radix.c +++ /dev/null @@ -1,158 +0,0 @@ -/* - * Copyright (c) 1999 Dug Song. All rights reserved. - * Copyright (c) 2002 Markus Friedl. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "includes.h" -#include "uuencode.h" - -RCSID("$OpenBSD: radix.c,v 1.22 2002/09/09 14:54:15 markus Exp $"); - -#ifdef AFS -#include <krb.h> - -#include <radix.h> -#include "bufaux.h" - -int -creds_to_radix(CREDENTIALS *creds, u_char *buf, size_t buflen) -{ - Buffer b; - int ret; - - buffer_init(&b); - - buffer_put_char(&b, 1); /* version */ - - buffer_append(&b, creds->service, strlen(creds->service)); - buffer_put_char(&b, '\0'); - buffer_append(&b, creds->instance, strlen(creds->instance)); - buffer_put_char(&b, '\0'); - buffer_append(&b, creds->realm, strlen(creds->realm)); - buffer_put_char(&b, '\0'); - buffer_append(&b, creds->pname, strlen(creds->pname)); - buffer_put_char(&b, '\0'); - buffer_append(&b, creds->pinst, strlen(creds->pinst)); - buffer_put_char(&b, '\0'); - - /* Null string to repeat the realm. */ - buffer_put_char(&b, '\0'); - - buffer_put_int(&b, creds->issue_date); - buffer_put_int(&b, krb_life_to_time(creds->issue_date, - creds->lifetime)); - buffer_append(&b, creds->session, sizeof(creds->session)); - buffer_put_short(&b, creds->kvno); - - /* 32 bit size + data */ - buffer_put_string(&b, creds->ticket_st.dat, creds->ticket_st.length); - - ret = uuencode(buffer_ptr(&b), buffer_len(&b), (char *)buf, buflen); - - buffer_free(&b); - return ret; -} - -#define GETSTRING(b, t, tlen) \ - do { \ - int i, found = 0; \ - for (i = 0; i < tlen; i++) { \ - if (buffer_len(b) == 0) \ - goto done; \ - t[i] = buffer_get_char(b); \ - if (t[i] == '\0') { \ - found = 1; \ - break; \ - } \ - } \ - if (!found) \ - goto done; \ - } while(0) - -int -radix_to_creds(const char *buf, CREDENTIALS *creds) -{ - Buffer b; - u_char *space; - char c, version, *p; - u_int endTime, len; - int blen, ret; - - ret = 0; - blen = strlen(buf); - - /* sanity check for size */ - if (blen > 8192) - return 0; - - buffer_init(&b); - space = buffer_append_space(&b, blen); - - /* check version and length! */ - len = uudecode(buf, space, blen); - if (len < 1) - goto done; - - version = buffer_get_char(&b); - - GETSTRING(&b, creds->service, sizeof creds->service); - GETSTRING(&b, creds->instance, sizeof creds->instance); - GETSTRING(&b, creds->realm, sizeof creds->realm); - GETSTRING(&b, creds->pname, sizeof creds->pname); - GETSTRING(&b, creds->pinst, sizeof creds->pinst); - - if (buffer_len(&b) == 0) - goto done; - - /* Ignore possibly different realm. */ - while (buffer_len(&b) > 0 && (c = buffer_get_char(&b)) != '\0') - ; - - if (buffer_len(&b) == 0) - goto done; - - creds->issue_date = buffer_get_int(&b); - - endTime = buffer_get_int(&b); - creds->lifetime = krb_time_to_life(creds->issue_date, endTime); - - len = buffer_len(&b); - if (len < sizeof(creds->session)) - goto done; - memcpy(&creds->session, buffer_ptr(&b), sizeof(creds->session)); - buffer_consume(&b, sizeof(creds->session)); - - creds->kvno = buffer_get_short(&b); - - p = buffer_get_string(&b, &len); - if (len < 0 || len > sizeof(creds->ticket_st.dat)) - goto done; - memcpy(&creds->ticket_st.dat, p, len); - creds->ticket_st.length = len; - - ret = 1; -done: - buffer_free(&b); - return ret; -} -#endif /* AFS */ diff --git a/usr.bin/ssh/radix.h b/usr.bin/ssh/radix.h deleted file mode 100644 index e94e4acc6ad..00000000000 --- a/usr.bin/ssh/radix.h +++ /dev/null @@ -1,28 +0,0 @@ -/* $OpenBSD: radix.h,v 1.4 2001/06/26 17:27:24 markus Exp $ */ - -/* - * Copyright (c) 1999 Dug Song. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -int creds_to_radix(CREDENTIALS *, u_char *, size_t); -int radix_to_creds(const char *, CREDENTIALS *); diff --git a/usr.bin/ssh/readconf.c b/usr.bin/ssh/readconf.c index e4d92289855..f4e0dcadefb 100644 --- a/usr.bin/ssh/readconf.c +++ b/usr.bin/ssh/readconf.c @@ -12,7 +12,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: readconf.c,v 1.114 2003/07/03 08:09:05 djm Exp $"); +RCSID("$OpenBSD: readconf.c,v 1.115 2003/07/22 13:35:22 markus Exp $"); #include "ssh.h" #include "xmalloc.h" @@ -94,7 +94,7 @@ typedef enum { oForwardAgent, oForwardX11, oGatewayPorts, oRhostsAuthentication, oPasswordAuthentication, oRSAAuthentication, oChallengeResponseAuthentication, oXAuthLocation, - oKerberosAuthentication, oKerberosTgtPassing, oAFSTokenPassing, + oKerberosAuthentication, oKerberosTgtPassing, oIdentityFile, oHostName, oPort, oCipher, oRemoteForward, oLocalForward, oUser, oHost, oEscapeChar, oRhostsRSAAuthentication, oProxyCommand, oGlobalKnownHostsFile, oUserKnownHostsFile, oConnectionAttempts, @@ -134,18 +134,14 @@ static struct { { "challengeresponseauthentication", oChallengeResponseAuthentication }, { "skeyauthentication", oChallengeResponseAuthentication }, /* alias */ { "tisauthentication", oChallengeResponseAuthentication }, /* alias */ -#if defined(KRB4) || defined(KRB5) +#ifdef KRB5 { "kerberosauthentication", oKerberosAuthentication }, { "kerberostgtpassing", oKerberosTgtPassing }, #else { "kerberosauthentication", oUnsupported }, { "kerberostgtpassing", oUnsupported }, #endif -#if defined(AFS) - { "afstokenpassing", oAFSTokenPassing }, -#else { "afstokenpassing", oUnsupported }, -#endif { "fallbacktorsh", oDeprecated }, { "usersh", oDeprecated }, { "identityfile", oIdentityFile }, @@ -397,10 +393,6 @@ parse_flag: intptr = &options->kerberos_tgt_passing; goto parse_flag; - case oAFSTokenPassing: - intptr = &options->afs_token_passing; - goto parse_flag; - case oBatchMode: intptr = &options->batch_mode; goto parse_flag; @@ -826,7 +818,6 @@ initialize_options(Options * options) options->challenge_response_authentication = -1; options->kerberos_authentication = -1; options->kerberos_tgt_passing = -1; - options->afs_token_passing = -1; options->password_authentication = -1; options->kbd_interactive_authentication = -1; options->kbd_interactive_devices = NULL; @@ -903,8 +894,6 @@ fill_default_options(Options * options) options->kerberos_authentication = 1; if (options->kerberos_tgt_passing == -1) options->kerberos_tgt_passing = 1; - if (options->afs_token_passing == -1) - options->afs_token_passing = 1; if (options->password_authentication == -1) options->password_authentication = 1; if (options->kbd_interactive_authentication == -1) diff --git a/usr.bin/ssh/readconf.h b/usr.bin/ssh/readconf.h index 4e0b7431888..cc94253e6ac 100644 --- a/usr.bin/ssh/readconf.h +++ b/usr.bin/ssh/readconf.h @@ -1,4 +1,4 @@ -/* $OpenBSD: readconf.h,v 1.51 2003/07/03 08:09:06 djm Exp $ */ +/* $OpenBSD: readconf.h,v 1.52 2003/07/22 13:35:22 markus Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -43,7 +43,6 @@ typedef struct { /* Try S/Key or TIS, authentication. */ int kerberos_authentication; /* Try Kerberos authentication. */ int kerberos_tgt_passing; /* Try Kerberos TGT passing. */ - int afs_token_passing; /* Try AFS token passing. */ int password_authentication; /* Try password * authentication. */ int kbd_interactive_authentication; /* Try keyboard-interactive auth. */ diff --git a/usr.bin/ssh/servconf.c b/usr.bin/ssh/servconf.c index 09a7be6c7c7..d57a221cb56 100644 --- a/usr.bin/ssh/servconf.c +++ b/usr.bin/ssh/servconf.c @@ -10,14 +10,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: servconf.c,v 1.122 2003/06/02 09:17:34 markus Exp $"); - -#if defined(KRB4) -#include <krb.h> -#endif -#ifdef AFS -#include <kafs.h> -#endif +RCSID("$OpenBSD: servconf.c,v 1.123 2003/07/22 13:35:22 markus Exp $"); #include "ssh.h" #include "log.h" @@ -76,7 +69,6 @@ initialize_server_options(ServerOptions *options) options->kerberos_or_local_passwd = -1; options->kerberos_ticket_cleanup = -1; options->kerberos_tgt_passing = -1; - options->afs_token_passing = -1; options->password_authentication = -1; options->kbd_interactive_authentication = -1; options->challenge_response_authentication = -1; @@ -183,8 +175,6 @@ fill_default_server_options(ServerOptions *options) options->kerberos_ticket_cleanup = 1; if (options->kerberos_tgt_passing == -1) options->kerberos_tgt_passing = 0; - if (options->afs_token_passing == -1) - options->afs_token_passing = 0; if (options->password_authentication == -1) options->password_authentication = 1; if (options->kbd_interactive_authentication == -1) @@ -237,7 +227,7 @@ typedef enum { sPermitRootLogin, sLogFacility, sLogLevel, sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication, sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup, - sKerberosTgtPassing, sAFSTokenPassing, sChallengeResponseAuthentication, + sKerberosTgtPassing, sChallengeResponseAuthentication, sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress, sPrintMotd, sPrintLastLog, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost, @@ -275,7 +265,7 @@ static struct { { "rsaauthentication", sRSAAuthentication }, { "pubkeyauthentication", sPubkeyAuthentication }, { "dsaauthentication", sPubkeyAuthentication }, /* alias */ -#if defined(KRB4) || defined(KRB5) +#ifdef KRB5 { "kerberosauthentication", sKerberosAuthentication }, { "kerberosorlocalpasswd", sKerberosOrLocalPasswd }, { "kerberosticketcleanup", sKerberosTicketCleanup }, @@ -286,11 +276,7 @@ static struct { { "kerberosticketcleanup", sUnsupported }, { "kerberostgtpassing", sUnsupported }, #endif -#if defined(AFS) - { "afstokenpassing", sAFSTokenPassing }, -#else { "afstokenpassing", sUnsupported }, -#endif { "passwordauthentication", sPasswordAuthentication }, { "kbdinteractiveauthentication", sKbdInteractiveAuthentication }, { "challengeresponseauthentication", sChallengeResponseAuthentication }, @@ -607,10 +593,6 @@ parse_flag: intptr = &options->kerberos_tgt_passing; goto parse_flag; - case sAFSTokenPassing: - intptr = &options->afs_token_passing; - goto parse_flag; - case sPasswordAuthentication: intptr = &options->password_authentication; goto parse_flag; diff --git a/usr.bin/ssh/servconf.h b/usr.bin/ssh/servconf.h index 4744a6ec4c2..13b6e32fff5 100644 --- a/usr.bin/ssh/servconf.h +++ b/usr.bin/ssh/servconf.h @@ -1,4 +1,4 @@ -/* $OpenBSD: servconf.h,v 1.61 2003/06/02 09:17:34 markus Exp $ */ +/* $OpenBSD: servconf.h,v 1.62 2003/07/22 13:35:22 markus Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -84,7 +84,6 @@ typedef struct { * file on logout. */ int kerberos_tgt_passing; /* If true, permit Kerberos TGT * passing. */ - int afs_token_passing; /* If true, permit AFS token passing. */ int password_authentication; /* If true, permit password * authentication. */ int kbd_interactive_authentication; /* If true, permit */ diff --git a/usr.bin/ssh/session.c b/usr.bin/ssh/session.c index 076c508e719..c7f5eb36b85 100644 --- a/usr.bin/ssh/session.c +++ b/usr.bin/ssh/session.c @@ -33,7 +33,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: session.c,v 1.158 2003/06/02 09:17:34 markus Exp $"); +RCSID("$OpenBSD: session.c,v 1.159 2003/07/22 13:35:22 markus Exp $"); #include "ssh.h" #include "ssh1.h" @@ -211,10 +211,6 @@ do_authenticated(Authctxt *authctxt) /* remove agent socket */ if (auth_sock_name != NULL) auth_sock_cleanup_proc(authctxt->pw); -#ifdef KRB4 - if (options.kerberos_ticket_cleanup) - krb4_cleanup_proc(authctxt); -#endif #ifdef KRB5 if (options.kerberos_ticket_cleanup) krb5_cleanup_proc(authctxt); @@ -327,7 +323,7 @@ do_authenticated1(Authctxt *authctxt) success = 1; break; -#if defined(AFS) || defined(KRB5) +#ifdef KRB5 case SSH_CMSG_HAVE_KERBEROS_TGT: if (!options.kerberos_tgt_passing) { verbose("Kerberos TGT passing disabled."); @@ -335,9 +331,8 @@ do_authenticated1(Authctxt *authctxt) char *kdata = packet_get_string(&dlen); packet_check_eom(); - /* XXX - 0x41, see creds_to_radix version */ + /* XXX - 0x41, used for AFS */ if (kdata[0] != 0x41) { -#ifdef KRB5 krb5_data tgt; tgt.data = kdata; tgt.length = dlen; @@ -346,38 +341,11 @@ do_authenticated1(Authctxt *authctxt) success = 1; else verbose("Kerberos v5 TGT refused for %.100s", s->authctxt->user); -#endif /* KRB5 */ - } else { -#ifdef AFS - if (auth_krb4_tgt(s->authctxt, kdata)) - success = 1; - else - verbose("Kerberos v4 TGT refused for %.100s", s->authctxt->user); -#endif /* AFS */ } xfree(kdata); } break; -#endif /* AFS || KRB5 */ - -#ifdef AFS - case SSH_CMSG_HAVE_AFS_TOKEN: - if (!options.afs_token_passing || !k_hasafs()) { - verbose("AFS token passing disabled."); - } else { - /* Accept AFS token. */ - char *token = packet_get_string(&dlen); - packet_check_eom(); - - if (auth_afs_token(s->authctxt, token)) - success = 1; - else - verbose("AFS token refused for %.100s", - s->authctxt->user); - xfree(token); - } - break; -#endif /* AFS */ +#endif case SSH_CMSG_EXEC_SHELL: case SSH_CMSG_EXEC_CMD: @@ -893,11 +861,6 @@ do_setup_env(Session *s, const char *shell) if (original_command) child_set_env(&env, &envsize, "SSH_ORIGINAL_COMMAND", original_command); -#ifdef KRB4 - if (s->authctxt->krb4_ticket_file) - child_set_env(&env, &envsize, "KRBTKFILE", - s->authctxt->krb4_ticket_file); -#endif #ifdef KRB5 if (s->authctxt->krb5_ticket_file) child_set_env(&env, &envsize, "KRB5CCNAME", @@ -1157,18 +1120,6 @@ do_child(Session *s, const char *command) */ environ = env; -#ifdef AFS - /* Try to get AFS tokens for the local cell. */ - if (k_hasafs()) { - char cell[64]; - - if (k_afs_cell_of_file(pw->pw_dir, cell, sizeof(cell)) == 0) - krb_afslog(cell, 0); - - krb_afslog(0, 0); - } -#endif /* AFS */ - /* Change current directory to the user\'s home directory. */ if (chdir(pw->pw_dir) < 0) { fprintf(stderr, "Could not chdir to home directory %s: %s\n", diff --git a/usr.bin/ssh/ssh.1 b/usr.bin/ssh/ssh.1 index 8a7d2f42854..c81cb42c67f 100644 --- a/usr.bin/ssh/ssh.1 +++ b/usr.bin/ssh/ssh.1 @@ -34,7 +34,7 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.\" $OpenBSD: ssh.1,v 1.174 2003/07/02 14:51:16 markus Exp $ +.\" $OpenBSD: ssh.1,v 1.175 2003/07/22 13:35:22 markus Exp $ .Dd September 25, 1999 .Dt SSH 1 .Os @@ -494,7 +494,7 @@ The argument is the device should use to communicate with a smartcard used for storing the user's private RSA key. .It Fl k -Disables forwarding of Kerberos tickets and AFS tokens. +Disables forwarding of Kerberos tickets. This may also be specified on a per-host basis in the configuration file. .It Fl l Ar login_name Specifies the user to log in as on the remote machine. diff --git a/usr.bin/ssh/ssh.c b/usr.bin/ssh/ssh.c index 921ab7d7afb..1c7960f1704 100644 --- a/usr.bin/ssh/ssh.c +++ b/usr.bin/ssh/ssh.c @@ -40,7 +40,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: ssh.c,v 1.197 2003/07/16 10:34:53 markus Exp $"); +RCSID("$OpenBSD: ssh.c,v 1.198 2003/07/22 13:35:22 markus Exp $"); #include <openssl/evp.h> #include <openssl/err.h> @@ -150,9 +150,7 @@ usage(void) _PATH_SSH_USER_CONFFILE); fprintf(stderr, " -A Enable authentication agent forwarding.\n"); fprintf(stderr, " -a Disable authentication agent forwarding (default).\n"); -#ifdef AFS - fprintf(stderr, " -k Disable Kerberos ticket and AFS token forwarding.\n"); -#endif /* AFS */ + fprintf(stderr, " -k Disable Kerberos ticket forwarding.\n"); fprintf(stderr, " -X Enable X11 connection forwarding.\n"); fprintf(stderr, " -x Disable X11 connection forwarding (default).\n"); fprintf(stderr, " -i file Identity for public key authentication " @@ -297,12 +295,9 @@ again: case 'A': options.forward_agent = 1; break; -#ifdef AFS case 'k': options.kerberos_tgt_passing = 0; - options.afs_token_passing = 0; break; -#endif case 'i': if (stat(optarg, &st) < 0) { fprintf(stderr, "Warning: Identity file %s " diff --git a/usr.bin/ssh/ssh.h b/usr.bin/ssh/ssh.h index 01a10f57055..deca5797789 100644 --- a/usr.bin/ssh/ssh.h +++ b/usr.bin/ssh/ssh.h @@ -1,4 +1,4 @@ -/* $OpenBSD: ssh.h,v 1.72 2003/06/28 16:23:06 deraadt Exp $ */ +/* $OpenBSD: ssh.h,v 1.73 2003/07/22 13:35:22 markus Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -79,9 +79,6 @@ */ #define SSH_SESSION_KEY_LENGTH 32 -/* Name of Kerberos service for SSH to use. */ -#define KRB4_SERVICE_NAME "rcmd" - /* Used to identify ``EscapeChar none'' */ #define SSH_ESCAPECHAR_NONE -2 diff --git a/usr.bin/ssh/ssh_config.5 b/usr.bin/ssh/ssh_config.5 index 79d05f018ae..3a79af8f072 100644 --- a/usr.bin/ssh/ssh_config.5 +++ b/usr.bin/ssh/ssh_config.5 @@ -34,7 +34,7 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.\" $OpenBSD: ssh_config.5,v 1.15 2003/07/02 14:51:16 markus Exp $ +.\" $OpenBSD: ssh_config.5,v 1.16 2003/07/22 13:35:22 markus Exp $ .Dd September 25, 1999 .Dt SSH_CONFIG 5 .Os @@ -123,13 +123,6 @@ Valid arguments are (Use IPv4 only) or .Dq inet6 (Use IPv6 only.) -.It Cm AFSTokenPassing -Specifies whether to pass AFS tokens to remote host. -The argument to this keyword must be -.Dq yes -or -.Dq no . -This option applies to protocol version 1 only. .It Cm BatchMode If set to .Dq yes , @@ -410,7 +403,6 @@ or .Dq no . .It Cm KerberosTgtPassing Specifies whether a Kerberos TGT will be forwarded to the server. -This will only work if the Kerberos server is actually an AFS kaserver. The argument to this keyword must be .Dq yes or diff --git a/usr.bin/ssh/sshconnect1.c b/usr.bin/ssh/sshconnect1.c index e82c90ef542..67f0545f606 100644 --- a/usr.bin/ssh/sshconnect1.c +++ b/usr.bin/ssh/sshconnect1.c @@ -13,21 +13,14 @@ */ #include "includes.h" -RCSID("$OpenBSD: sshconnect1.c,v 1.53 2003/04/08 20:21:29 itojun Exp $"); +RCSID("$OpenBSD: sshconnect1.c,v 1.54 2003/07/22 13:35:22 markus Exp $"); #include <openssl/bn.h> #include <openssl/md5.h> -#ifdef KRB4 -#include <krb.h> -#endif #ifdef KRB5 #include <krb5.h> #endif -#ifdef AFS -#include <kafs.h> -#include "radix.h" -#endif #include "ssh.h" #include "ssh1.h" @@ -377,128 +370,6 @@ try_rhosts_rsa_authentication(const char *local_user, Key * host_key) return 0; } -#ifdef KRB4 -static int -try_krb4_authentication(void) -{ - KTEXT_ST auth; /* Kerberos data */ - char *reply; - char inst[INST_SZ]; - char *realm; - CREDENTIALS cred; - int r, type; - socklen_t slen; - Key_schedule schedule; - u_long checksum, cksum; - MSG_DAT msg_data; - struct sockaddr_in local, foreign; - struct stat st; - - /* Don't do anything if we don't have any tickets. */ - if (stat(tkt_string(), &st) < 0) - return 0; - - strlcpy(inst, (char *)krb_get_phost(get_canonical_hostname(1)), - INST_SZ); - - realm = (char *)krb_realmofhost(get_canonical_hostname(1)); - if (!realm) { - debug("Kerberos v4: no realm for %s", get_canonical_hostname(1)); - return 0; - } - /* This can really be anything. */ - checksum = (u_long)getpid(); - - r = krb_mk_req(&auth, KRB4_SERVICE_NAME, inst, realm, checksum); - if (r != KSUCCESS) { - debug("Kerberos v4 krb_mk_req failed: %s", krb_err_txt[r]); - return 0; - } - /* Get session key to decrypt the server's reply with. */ - r = krb_get_cred(KRB4_SERVICE_NAME, inst, realm, &cred); - if (r != KSUCCESS) { - debug("get_cred failed: %s", krb_err_txt[r]); - return 0; - } - des_key_sched((des_cblock *) cred.session, schedule); - - /* Send authentication info to server. */ - packet_start(SSH_CMSG_AUTH_KERBEROS); - packet_put_string((char *) auth.dat, auth.length); - packet_send(); - packet_write_wait(); - - /* Zero the buffer. */ - (void) memset(auth.dat, 0, MAX_KTXT_LEN); - - slen = sizeof(local); - memset(&local, 0, sizeof(local)); - if (getsockname(packet_get_connection_in(), - (struct sockaddr *)&local, &slen) < 0) - debug("getsockname failed: %s", strerror(errno)); - - slen = sizeof(foreign); - memset(&foreign, 0, sizeof(foreign)); - if (getpeername(packet_get_connection_in(), - (struct sockaddr *)&foreign, &slen) < 0) { - debug("getpeername failed: %s", strerror(errno)); - fatal_cleanup(); - } - /* Get server reply. */ - type = packet_read(); - switch (type) { - case SSH_SMSG_FAILURE: - /* Should really be SSH_SMSG_AUTH_KERBEROS_FAILURE */ - debug("Kerberos v4 authentication failed."); - return 0; - break; - - case SSH_SMSG_AUTH_KERBEROS_RESPONSE: - /* SSH_SMSG_AUTH_KERBEROS_SUCCESS */ - debug("Kerberos v4 authentication accepted."); - - /* Get server's response. */ - reply = packet_get_string((u_int *) &auth.length); - if (auth.length >= MAX_KTXT_LEN) - fatal("Kerberos v4: Malformed response from server"); - memcpy(auth.dat, reply, auth.length); - xfree(reply); - - packet_check_eom(); - - /* - * If his response isn't properly encrypted with the session - * key, and the decrypted checksum fails to match, he's - * bogus. Bail out. - */ - r = krb_rd_priv(auth.dat, auth.length, schedule, &cred.session, - &foreign, &local, &msg_data); - if (r != KSUCCESS) { - debug("Kerberos v4 krb_rd_priv failed: %s", - krb_err_txt[r]); - packet_disconnect("Kerberos v4 challenge failed!"); - } - /* Fetch the (incremented) checksum that we supplied in the request. */ - memcpy((char *)&cksum, (char *)msg_data.app_data, - sizeof(cksum)); - cksum = ntohl(cksum); - - /* If it matches, we're golden. */ - if (cksum == checksum + 1) { - debug("Kerberos v4 challenge successful."); - return 1; - } else - packet_disconnect("Kerberos v4 challenge failed!"); - break; - - default: - packet_disconnect("Protocol error on Kerberos v4 response: %d", type); - } - return 0; -} - -#endif /* KRB4 */ - #ifdef KRB5 static int try_krb5_authentication(krb5_context *context, krb5_auth_context *auth_context) @@ -683,129 +554,6 @@ send_krb5_tgt(krb5_context context, krb5_auth_context auth_context) } #endif /* KRB5 */ -#ifdef AFS -static void -send_krb4_tgt(void) -{ - CREDENTIALS *creds; - struct stat st; - char buffer[4096], pname[ANAME_SZ], pinst[INST_SZ], prealm[REALM_SZ]; - int problem, type; - - /* Don't do anything if we don't have any tickets. */ - if (stat(tkt_string(), &st) < 0) - return; - - creds = xmalloc(sizeof(*creds)); - - problem = krb_get_tf_fullname(TKT_FILE, pname, pinst, prealm); - if (problem) - goto out; - - problem = krb_get_cred("krbtgt", prealm, prealm, creds); - if (problem) - goto out; - - if (time(0) > krb_life_to_time(creds->issue_date, creds->lifetime)) { - problem = RD_AP_EXP; - goto out; - } - creds_to_radix(creds, (u_char *)buffer, sizeof(buffer)); - - packet_start(SSH_CMSG_HAVE_KERBEROS_TGT); - packet_put_cstring(buffer); - packet_send(); - packet_write_wait(); - - type = packet_read(); - - if (type == SSH_SMSG_SUCCESS) - debug("Kerberos v4 TGT forwarded (%s%s%s@%s).", - creds->pname, creds->pinst[0] ? "." : "", - creds->pinst, creds->realm); - else - debug("Kerberos v4 TGT rejected."); - - xfree(creds); - return; - - out: - debug("Kerberos v4 TGT passing failed: %s", krb_err_txt[problem]); - xfree(creds); -} - -static void -send_afs_tokens(void) -{ - CREDENTIALS creds; - struct ViceIoctl parms; - struct ClearToken ct; - int i, type, len; - char buf[2048], *p, *server_cell; - char buffer[8192]; - - /* Move over ktc_GetToken, here's something leaner. */ - for (i = 0; i < 100; i++) { /* just in case */ - parms.in = (char *) &i; - parms.in_size = sizeof(i); - parms.out = buf; - parms.out_size = sizeof(buf); - if (k_pioctl(0, VIOCGETTOK, &parms, 0) != 0) - break; - p = buf; - - /* Get secret token. */ - memcpy(&creds.ticket_st.length, p, sizeof(u_int)); - if (creds.ticket_st.length > MAX_KTXT_LEN) - break; - p += sizeof(u_int); - memcpy(creds.ticket_st.dat, p, creds.ticket_st.length); - p += creds.ticket_st.length; - - /* Get clear token. */ - memcpy(&len, p, sizeof(len)); - if (len != sizeof(struct ClearToken)) - break; - p += sizeof(len); - memcpy(&ct, p, len); - p += len; - p += sizeof(len); /* primary flag */ - server_cell = p; - - /* Flesh out our credentials. */ - strlcpy(creds.service, "afs", sizeof(creds.service)); - creds.instance[0] = '\0'; - strlcpy(creds.realm, server_cell, REALM_SZ); - memcpy(creds.session, ct.HandShakeKey, DES_KEY_SZ); - creds.issue_date = ct.BeginTimestamp; - creds.lifetime = krb_time_to_life(creds.issue_date, - ct.EndTimestamp); - creds.kvno = ct.AuthHandle; - snprintf(creds.pname, sizeof(creds.pname), "AFS ID %d", ct.ViceId); - creds.pinst[0] = '\0'; - - /* Encode token, ship it off. */ - if (creds_to_radix(&creds, (u_char *)buffer, - sizeof(buffer)) <= 0) - break; - packet_start(SSH_CMSG_HAVE_AFS_TOKEN); - packet_put_cstring(buffer); - packet_send(); - packet_write_wait(); - - /* Roger, Roger. Clearance, Clarence. What's your vector, - Victor? */ - type = packet_read(); - - if (type == SSH_SMSG_FAILURE) - debug("AFS token for cell %s rejected.", server_cell); - else if (type != SSH_SMSG_SUCCESS) - packet_disconnect("Protocol error on AFS token response: %d", type); - } -} - -#endif /* AFS */ - /* * Tries to authenticate with any string-based challenge/response system. * Note that the client code is not tied to s/key or TIS. @@ -1137,21 +885,6 @@ ssh_userauth1(const char *local_user, const char *server_user, char *host, } #endif /* KRB5 */ -#ifdef KRB4 - if ((supported_authentications & (1 << SSH_AUTH_KERBEROS)) && - options.kerberos_authentication) { - debug("Trying Kerberos v4 authentication."); - - if (try_krb4_authentication()) { - type = packet_read(); - if (type == SSH_SMSG_SUCCESS) - goto success; - if (type != SSH_SMSG_FAILURE) - packet_disconnect("Protocol error: got %d in response to Kerberos v4 auth", type); - } - } -#endif /* KRB4 */ - /* * Use rhosts authentication if running in privileged socket and we * do not wish to remain anonymous. @@ -1238,23 +971,5 @@ ssh_userauth1(const char *local_user, const char *server_user, char *host, if (context) krb5_free_context(context); #endif - -#ifdef AFS - /* Try Kerberos v4 TGT passing if the server supports it. */ - if ((supported_authentications & (1 << SSH_PASS_KERBEROS_TGT)) && - options.kerberos_tgt_passing) { - if (options.cipher == SSH_CIPHER_NONE) - logit("WARNING: Encryption is disabled! Ticket will be transmitted in the clear!"); - send_krb4_tgt(); - } - /* Try AFS token passing if the server supports it. */ - if ((supported_authentications & (1 << SSH_PASS_AFS_TOKEN)) && - options.afs_token_passing && k_hasafs()) { - if (options.cipher == SSH_CIPHER_NONE) - logit("WARNING: Encryption is disabled! Token will be transmitted in the clear!"); - send_afs_tokens(); - } -#endif /* AFS */ - return; /* need statement after label */ } diff --git a/usr.bin/ssh/sshd.c b/usr.bin/ssh/sshd.c index 5bc655f9b96..7db6a6e01ac 100644 --- a/usr.bin/ssh/sshd.c +++ b/usr.bin/ssh/sshd.c @@ -42,7 +42,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: sshd.c,v 1.273 2003/07/16 10:34:53 markus Exp $"); +RCSID("$OpenBSD: sshd.c,v 1.274 2003/07/22 13:35:22 markus Exp $"); #include <openssl/dh.h> #include <openssl/bn.h> @@ -1409,20 +1409,13 @@ main(int ac, char **av) "originating port %d not trusted.", remote_port); options.rhosts_authentication = 0; } -#if defined(KRB4) && !defined(KRB5) +#ifdef KRB5 if (!packet_connection_is_ipv4() && options.kerberos_authentication) { debug("Kerberos Authentication disabled, only available for IPv4."); options.kerberos_authentication = 0; } -#endif /* KRB4 && !KRB5 */ -#ifdef AFS - /* If machine has AFS, set process authentication group. */ - if (k_hasafs()) { - k_setpag(); - k_unlog(); - } -#endif /* AFS */ +#endif packet_set_nonblocking(); @@ -1580,18 +1573,12 @@ do_ssh1_kex(void) auth_mask |= 1 << SSH_AUTH_RHOSTS_RSA; if (options.rsa_authentication) auth_mask |= 1 << SSH_AUTH_RSA; -#if defined(KRB4) || defined(KRB5) +#ifdef KRB5 if (options.kerberos_authentication) auth_mask |= 1 << SSH_AUTH_KERBEROS; -#endif -#if defined(AFS) || defined(KRB5) if (options.kerberos_tgt_passing) auth_mask |= 1 << SSH_PASS_KERBEROS_TGT; #endif -#ifdef AFS - if (options.afs_token_passing) - auth_mask |= 1 << SSH_PASS_AFS_TOKEN; -#endif if (options.challenge_response_authentication == 1) auth_mask |= 1 << SSH_AUTH_TIS; if (options.password_authentication) diff --git a/usr.bin/ssh/sshd_config.5 b/usr.bin/ssh/sshd_config.5 index 7968f371b99..abf29fd62e4 100644 --- a/usr.bin/ssh/sshd_config.5 +++ b/usr.bin/ssh/sshd_config.5 @@ -34,7 +34,7 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.\" $OpenBSD: sshd_config.5,v 1.20 2003/06/20 05:47:58 djm Exp $ +.\" $OpenBSD: sshd_config.5,v 1.21 2003/07/22 13:35:22 markus Exp $ .Dd September 25, 1999 .Dt SSHD_CONFIG 5 .Os @@ -61,10 +61,6 @@ The possible keywords and their meanings are as follows (note that keywords are case-insensitive and arguments are case-sensitive): .Bl -tag -width Ds -.It Cm AFSTokenPassing -Specifies whether an AFS token may be forwarded to the server. -Default is -.Dq no . .It Cm AllowGroups This keyword can be followed by a list of group name patterns, separated by spaces. @@ -327,8 +323,7 @@ Default is .It Cm KerberosTgtPassing Specifies whether a Kerberos TGT may be forwarded to the server. Default is -.Dq no , -as this only works when the Kerberos KDC is actually an AFS kaserver. +.Dq no . .It Cm KerberosTicketCleanup Specifies whether to automatically destroy the user's ticket cache file on logout. |