int mm_answer_gss_setup_ctx(int, Buffer *);
int mm_answer_gss_accept_ctx(int, Buffer *);
int mm_answer_gss_userok(int, Buffer *);
+int mm_answer_gss_localname(int, Buffer *);
int mm_answer_gss_checkmic(int, Buffer *);
+int mm_answer_gss_sign(int, Buffer *);
#endif
#ifdef SSH_AUDIT_EVENTS
struct mon_table mon_dispatch_proto20[] = {
{MONITOR_REQ_MODULI, MON_ONCE, mm_answer_moduli},
{MONITOR_REQ_SIGN, MON_ONCE, mm_answer_sign},
- {MONITOR_REQ_PWNAM, MON_ONCE, mm_answer_pwnamallow},
+ {MONITOR_REQ_PWNAM, MON_AUTH, mm_answer_pwnamallow},
{MONITOR_REQ_AUTHSERV, MON_ONCE, mm_answer_authserv},
{MONITOR_REQ_AUTH2_READ_BANNER, MON_ONCE, mm_answer_auth2_read_banner},
{MONITOR_REQ_AUTHPASSWORD, MON_AUTH, mm_answer_authpassword},
#ifdef USE_PAM
- {MONITOR_REQ_PAM_START, MON_ONCE, mm_answer_pam_start},
+ {MONITOR_REQ_PAM_START, MON_ISAUTH, mm_answer_pam_start},
{MONITOR_REQ_PAM_ACCOUNT, 0, mm_answer_pam_account},
{MONITOR_REQ_PAM_INIT_CTX, MON_ISAUTH, mm_answer_pam_init_ctx},
{MONITOR_REQ_PAM_QUERY, MON_ISAUTH, mm_answer_pam_query},
{MONITOR_REQ_GSSSETUP, MON_ISAUTH, mm_answer_gss_setup_ctx},
{MONITOR_REQ_GSSSTEP, MON_ISAUTH, mm_answer_gss_accept_ctx},
{MONITOR_REQ_GSSUSEROK, MON_AUTH, mm_answer_gss_userok},
+ {MONITOR_REQ_GSSLOCALNAME, MON_ISAUTH, mm_answer_gss_localname},
{MONITOR_REQ_GSSCHECKMIC, MON_ISAUTH, mm_answer_gss_checkmic},
+ {MONITOR_REQ_GSSSIGN, MON_ONCE, mm_answer_gss_sign},
#endif
#ifdef JPAKE
{MONITOR_REQ_JPAKE_GET_PWDATA, MON_ONCE, mm_answer_jpake_get_pwdata},
};
struct mon_table mon_dispatch_postauth20[] = {
+#ifdef GSSAPI
+ {MONITOR_REQ_GSSSETUP, 0, mm_answer_gss_setup_ctx},
+ {MONITOR_REQ_GSSSTEP, 0, mm_answer_gss_accept_ctx},
+ {MONITOR_REQ_GSSSIGN, 0, mm_answer_gss_sign},
+#endif
{MONITOR_REQ_MODULI, 0, mm_answer_moduli},
{MONITOR_REQ_SIGN, 0, mm_answer_sign},
{MONITOR_REQ_PTY, 0, mm_answer_pty},
/* Permit requests for moduli and signatures */
monitor_permit(mon_dispatch, MONITOR_REQ_MODULI, 1);
monitor_permit(mon_dispatch, MONITOR_REQ_SIGN, 1);
+#ifdef GSSAPI
+ /* and for the GSSAPI key exchange */
+ monitor_permit(mon_dispatch, MONITOR_REQ_GSSSETUP, 1);
+#endif
} else {
mon_dispatch = mon_dispatch_proto15;
monitor_permit(mon_dispatch, MONITOR_REQ_MODULI, 1);
monitor_permit(mon_dispatch, MONITOR_REQ_SIGN, 1);
monitor_permit(mon_dispatch, MONITOR_REQ_TERM, 1);
+#ifdef GSSAPI
+ /* and for the GSSAPI key exchange */
+ monitor_permit(mon_dispatch, MONITOR_REQ_GSSSETUP, 1);
+#endif
} else {
mon_dispatch = mon_dispatch_postauth15;
monitor_permit(mon_dispatch, MONITOR_REQ_TERM, 1);
debug3("%s", __func__);
- if (authctxt->attempt++ != 0)
- fatal("%s: multiple attempts for getpwnam", __func__);
-
username = buffer_get_string(m, NULL);
pwent = getpwnamallow(username);
+ if (authctxt->user) xfree(authctxt->user);
authctxt->user = xstrdup(username);
setproctitle("%s [priv]", pwent ? username : "unknown");
xfree(username);
kex->kex[KEX_DH_GEX_SHA1] = kexgex_server;
kex->kex[KEX_DH_GEX_SHA256] = kexgex_server;
kex->kex[KEX_ECDH_SHA2] = kexecdh_server;
+#ifdef GSSAPI
+ if (options.gss_keyex) {
+ kex->kex[KEX_GSS_GRP1_SHA1] = kexgss_server;
+ kex->kex[KEX_GSS_GRP14_SHA1] = kexgss_server;
+ kex->kex[KEX_GSS_GEX_SHA1] = kexgss_server;
+ }
+#endif
kex->server = 1;
kex->hostkey_type = buffer_get_int(m);
kex->kex_type = buffer_get_int(m);
OM_uint32 major;
u_int len;
+ if (!options.gss_authentication && !options.gss_keyex)
+ fatal("In GSSAPI monitor when GSSAPI is disabled");
+
goid.elements = buffer_get_string(m, &len);
goid.length = len;
OM_uint32 flags = 0; /* GSI needs this */
u_int len;
+ if (!options.gss_authentication && !options.gss_keyex)
+ fatal("In GSSAPI monitor when GSSAPI is disabled");
+
in.value = buffer_get_string(m, &len);
in.length = len;
major = ssh_gssapi_accept_ctx(gsscontext, &in, &out, &flags);
monitor_permit(mon_dispatch, MONITOR_REQ_GSSSTEP, 0);
monitor_permit(mon_dispatch, MONITOR_REQ_GSSUSEROK, 1);
monitor_permit(mon_dispatch, MONITOR_REQ_GSSCHECKMIC, 1);
+ monitor_permit(mon_dispatch, MONITOR_REQ_GSSSIGN, 1);
}
return (0);
}
OM_uint32 ret;
u_int len;
+ if (!options.gss_authentication && !options.gss_keyex)
+ fatal("In GSSAPI monitor when GSSAPI is disabled");
+
gssbuf.value = buffer_get_string(m, &len);
gssbuf.length = len;
mic.value = buffer_get_string(m, &len);
{
int authenticated;
- authenticated = authctxt->valid && ssh_gssapi_userok(authctxt->user);
+ if (!options.gss_authentication && !options.gss_keyex)
+ fatal("In GSSAPI monitor when GSSAPI is disabled");
+
+ authenticated = authctxt->valid &&
+ ssh_gssapi_userok(authctxt->user, authctxt->pw);
buffer_clear(m);
buffer_put_int(m, authenticated);
/* Monitor loop will terminate if authenticated */
return (authenticated);
}
+
+int
+mm_answer_gss_localname(int socket, Buffer *m) {
+ char *name;
+
+ ssh_gssapi_localname(&name);
+
+ buffer_clear(m);
+ if (name) {
+ buffer_put_cstring(m, name);
+ debug3("%s: sending result %s", __func__, name);
+ xfree(name);
+ } else {
+ buffer_put_cstring(m, "");
+ debug3("%s: sending result \"\"", __func__);
+ }
+
+ mm_request_send(socket, MONITOR_ANS_GSSLOCALNAME, m);
+
+ return(0);
+}
+
+int
+mm_answer_gss_sign(int socket, Buffer *m)
+{
+ gss_buffer_desc data;
+ gss_buffer_desc hash = GSS_C_EMPTY_BUFFER;
+ OM_uint32 major, minor;
+ u_int len;
+
+ if (!options.gss_authentication && !options.gss_keyex)
+ fatal("In GSSAPI monitor when GSSAPI is disabled");
+
+ data.value = buffer_get_string(m, &len);
+ data.length = len;
+ if (data.length != 20)
+ fatal("%s: data length incorrect: %d", __func__,
+ (int) data.length);
+
+ /* Save the session ID on the first time around */
+ if (session_id2_len == 0) {
+ session_id2_len = data.length;
+ session_id2 = xmalloc(session_id2_len);
+ memcpy(session_id2, data.value, session_id2_len);
+ }
+ major = ssh_gssapi_sign(gsscontext, &data, &hash);
+
+ xfree(data.value);
+
+ buffer_clear(m);
+ buffer_put_int(m, major);
+ buffer_put_string(m, hash.value, hash.length);
+
+ mm_request_send(socket, MONITOR_ANS_GSSSIGN, m);
+
+ gss_release_buffer(&minor, &hash);
+
+ /* Turn on getpwnam permissions */
+ monitor_permit(mon_dispatch, MONITOR_REQ_PWNAM, 1);
+
+ /* And credential updating, for when rekeying */
+ monitor_permit(mon_dispatch, MONITOR_REQ_GSSUPCREDS, 1);
+
+ return (0);
+}
+
#endif /* GSSAPI */
#ifdef JPAKE
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