#include <stdio.h>
#include <stdarg.h>
-#define MODAUTHKERB_VERSION "5.0-rc6"
+#define MODAUTHKERB_VERSION "5.3"
#define MECH_NEGOTIATE "Negotiate"
#define SERVICE_NAME "HTTP"
#ifdef STANDARD20_MODULE_STUFF
#include <apr_strings.h>
#include <apr_base64.h>
-
-#define ap_null_cleanup NULL
-#define ap_register_cleanup apr_pool_cleanup_register
-
-#define ap_pstrdup apr_pstrdup
-#define ap_pstrcat apr_pstrcat
-#define ap_pcalloc apr_pcalloc
-#define ap_psprintf apr_psprintf
-
-#define ap_base64decode_len apr_base64_decode_len
-#define ap_base64decode apr_base64_decode
-#define ap_base64encode_len apr_base64_encode_len
-#define ap_base64encode apr_base64_encode
-
-#define ap_table_setn apr_table_setn
-#define ap_table_add apr_table_add
#else
-#define ap_pstrchr_c strchr
+#define apr_pstrdup ap_pstrdup
+#define apr_psprintf ap_psprintf
+#define apr_pstrcat ap_pstrcat
+#define apr_pcalloc ap_pcalloc
+#define apr_table_setn ap_table_setn
+#define apr_table_add ap_table_add
+#define apr_base64_decode_len ap_base64decode_len
+#define apr_base64_decode ap_base64decode
+#define apr_base64_encode_len ap_base64encode_len
+#define apr_base64_encode ap_base64encode
+#define apr_pool_cleanup_null ap_null_cleanup
+#define apr_pool_cleanup_register ap_register_cleanup
#endif /* STANDARD20_MODULE_STUFF */
#ifdef _WIN32
# include <gssapi/gssapi_krb5.h>
# define GSS_C_NT_USER_NAME gss_nt_user_name
# define GSS_C_NT_HOSTBASED_SERVICE gss_nt_service_name
+# define GSS_KRB5_NT_PRINCIPAL_NAME gss_nt_krb5_name
# define krb5_get_err_text(context,code) error_message(code)
#endif
#ifndef GSSAPI_SUPPORTS_SPNEGO
#include <unistd.h>
#endif
+#ifndef KRB5_LIB_FUNCTION
+# if defined(_WIN32)
+# define KRB5_LIB_FUNCTION _stdcall
+# else
+# define KRB5_LIB_FUNCTION
+# endif
+#endif
+
#ifdef STANDARD20_MODULE_STUFF
module AP_MODULE_DECLARE_DATA auth_kerb_module;
#else
{
kerb_auth_config *rec;
- rec = (kerb_auth_config *) ap_pcalloc(p, sizeof(kerb_auth_config));
+ rec = (kerb_auth_config *) apr_pcalloc(p, sizeof(kerb_auth_config));
((kerb_auth_config *)rec)->krb_verify_kdc = 1;
((kerb_auth_config *)rec)->krb_service_name = NULL;
((kerb_auth_config *)rec)->krb_authoritative = 1;
krb5_save_realms(cmd_parms *cmd, void *vsec, const char *arg)
{
kerb_auth_config *sec = (kerb_auth_config *) vsec;
- sec->krb_auth_realms= ap_pstrdup(cmd->pool, arg);
+ sec->krb_auth_realms= apr_pstrdup(cmd->pool, arg);
return NULL;
}
Username/Password Validation for Krb4
***************************************************************************/
static int
-verify_krb4_user(request_rec *r, char *name, char *instance, char *realm,
- char *password, char *linstance, char *srvtab, int krb_verify_kdc)
+verify_krb4_user(request_rec *r, const char *name, const char *instance,
+ const char *realm, const char *password, const char *linstance, const char *srvtab, int krb_verify_kdc)
{
int ret;
char *phost;
return ret;
}
- ret = krb_rd_req(&ticket, linstance, phost, addr, &authdata, srvtab);
+ ret = krb_rd_req(&ticket, (char *)linstance, phost, addr, &authdata, (char *)srvtab);
if (ret) {
log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"Cannot verify krb4 ticket: krb_rd_req() failed: %s",
sent_pw = ap_pbase64decode(r->pool, auth_line);
sent_name = ap_getword (r->pool, &sent_pw, ':');
- /* do not allow user to override realm setting of server */
- if (ap_strchr_c(sent_name, '@')) {
- log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
- "specifying realm in user name is prohibited");
- return HTTP_UNAUTHORIZED;
- }
-
sent_instance = strchr(sent_name, '.');
if (sent_instance)
*sent_instance++ = '\0';
return HTTP_INTERNAL_SERVER_ERROR;
}
- tkt_file_p = ap_pstrdup(r->pool, tkt_file);
- ap_register_cleanup(r->pool, tkt_file_p,
- krb4_cache_cleanup, ap_null_cleanup);
-
+ tkt_file_p = apr_pstrdup(r->pool, tkt_file);
+ apr_pool_cleanup_register(r->pool, tkt_file_p, krb4_cache_cleanup,
+ apr_pool_cleanup_null);
+
krb_set_tkt_string(tkt_file);
all_principals_unkown = 1;
goto end;
}
- user = ap_pstrdup(r->pool, sent_name);
+ user = apr_pstrdup(r->pool, sent_name);
if (sent_instance)
- user = ap_pstrcat(r->pool, user, ".", sent_instance, NULL);
- user = ap_pstrcat(r->pool, user, "@", realm, NULL);
+ user = apr_pstrcat(r->pool, user, ".", sent_instance, NULL);
+ user = apr_pstrcat(r->pool, user, "@", realm, NULL);
MK_USER = user;
MK_AUTH_TYPE = "Basic";
- ap_table_setn(r->subprocess_env, "KRBTKFILE", tkt_file_p);
+ apr_table_setn(r->subprocess_env, "KRBTKFILE", tkt_file_p);
if (!conf->krb_save_credentials)
krb4_cache_cleanup(tkt_file);
int ret;
krb5_ccache tmp_ccache = NULL;
- ccname = ap_psprintf(r->pool, "FILE:%s/krb5cc_apache_XXXXXX", P_tmpdir);
+ ccname = apr_psprintf(r->pool, "FILE:%s/krb5cc_apache_XXXXXX", P_tmpdir);
fd = mkstemp(ccname + strlen("FILE:"));
if (fd < 0) {
log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
goto end;
}
- ap_table_setn(r->subprocess_env, "KRB5CCNAME", ccname);
- ap_register_cleanup(r->pool, ccname,
- krb5_cache_cleanup, ap_null_cleanup);
+ apr_table_setn(r->subprocess_env, "KRB5CCNAME", ccname);
+ apr_pool_cleanup_register(r->pool, ccname, krb5_cache_cleanup,
+ apr_pool_cleanup_null);
*ccache = tmp_ccache;
tmp_ccache = NULL;
do {
name = (char *) sent_name;
if (realms && (realm = ap_getword_white(r->pool, &realms)))
- name = ap_psprintf(r->pool, "%s@%s", sent_name, realm);
+ name = apr_psprintf(r->pool, "%s@%s", sent_name, realm);
if (client) {
krb5_free_principal(kcontext, client);
ret = HTTP_UNAUTHORIZED;
goto end;
}
- MK_USER = ap_pstrdup (r->pool, name);
+ MK_USER = apr_pstrdup (r->pool, name);
MK_AUTH_TYPE = "Basic";
free(name);
********************************************************************/
static const char *
-get_gss_error(MK_POOL *p, OM_uint32 err_maj, OM_uint32 err_min, char *prefix)
+get_gss_error(request_rec *r, OM_uint32 err_maj, OM_uint32 err_min, char *prefix)
{
OM_uint32 maj_stat, min_stat;
OM_uint32 msg_ctx = 0;
gss_buffer_desc status_string;
char *err_msg;
- err_msg = ap_pstrdup(p, prefix);
+ log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
+ "GSS-API major_status:%8.8x, minor_status:%8.8x",
+ err_maj, err_min);
+
+ err_msg = apr_pstrdup(r->pool, prefix);
do {
maj_stat = gss_display_status (&min_stat,
err_maj,
GSS_C_NO_OID,
&msg_ctx,
&status_string);
- if (GSS_ERROR(maj_stat))
- break;
- err_msg = ap_pstrcat(p, err_msg, ": ", (char*) status_string.value, NULL);
- gss_release_buffer(&min_stat, &status_string);
-
+ if (!GSS_ERROR(maj_stat)) {
+ err_msg = apr_pstrcat(r->pool, err_msg, ": ",
+ (char*) status_string.value, NULL);
+ gss_release_buffer(&min_stat, &status_string);
+ }
+ } while (!GSS_ERROR(maj_stat) && msg_ctx != 0);
+
+ msg_ctx = 0;
+ err_msg = apr_pstrcat(r->pool, err_msg, " (", NULL);
+ do {
maj_stat = gss_display_status (&min_stat,
err_min,
GSS_C_MECH_CODE,
&msg_ctx,
&status_string);
if (!GSS_ERROR(maj_stat)) {
- err_msg = ap_pstrcat(p, err_msg,
- " (", (char*) status_string.value, ")", NULL);
+ err_msg = apr_pstrcat(r->pool, err_msg, ", ",
+ (char *) status_string.value, NULL);
gss_release_buffer(&min_stat, &status_string);
}
} while (!GSS_ERROR(maj_stat) && msg_ctx != 0);
+ err_msg = apr_pstrcat(r->pool, err_msg, ")", NULL);
return err_msg;
}
if (GSS_ERROR(maj_stat)) {
log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"Cannot store delegated credential (%s)",
- get_gss_error(r->pool, maj_stat, min_stat, "gss_krb5_copy_ccache"));
+ get_gss_error(r, maj_stat, min_stat, "gss_krb5_copy_ccache"));
goto end;
}
char buf[1024];
int have_server_princ;
+
have_server_princ = conf->krb_service_name && strchr(conf->krb_service_name, '/') != NULL;
if (have_server_princ)
strncpy(buf, conf->krb_service_name, sizeof(buf));
memset(&token, 0, sizeof(token));
if (GSS_ERROR(major_status)) {
log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
- "%s", get_gss_error(r->pool, major_status, minor_status,
+ "%s", get_gss_error(r, major_status, minor_status,
"gss_import_name() failed"));
return HTTP_INTERNAL_SERVER_ERROR;
}
/* Perhaps we could just ignore this error but it's safer to give up now,
I think */
log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
- "%s", get_gss_error(r->pool, major_status, minor_status,
+ "%s", get_gss_error(r, major_status, minor_status,
"gss_display_name() failed"));
return HTTP_INTERNAL_SERVER_ERROR;
}
gss_release_name(&minor_status2, &server_name);
if (GSS_ERROR(major_status)) {
log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
- "%s", get_gss_error(r->pool, major_status, minor_status,
+ "%s", get_gss_error(r, major_status, minor_status,
"gss_acquire_cred() failed"));
return HTTP_INTERNAL_SERVER_ERROR;
}
{
krb5_gss_cred_id_t gss_creds = (krb5_gss_cred_id_t) *server_creds;
- if (gss_creds && gss_creds->rcache && gss_creds->rcache->ops &&
- gss_creds->rcache->ops->type &&
- memcmp(gss_creds->rcache->ops->type, "dfl", 3) == 0)
+ /* First we try to verify we are linked with 1.3.x to prevent from
+ crashing when linked with 1.4.x */
+ if (gss_creds && (gss_creds->usage == GSS_C_ACCEPT)) {
+ if (gss_creds->rcache && gss_creds->rcache->ops &&
+ gss_creds->rcache->ops->type &&
+ memcmp(gss_creds->rcache->ops->type, "dfl", 3) == 0)
/* Override the rcache operations */
gss_creds->rcache->ops = &mod_auth_kerb_rc_ops;
+ }
}
#endif
gss_OID_desc spnego_oid;
gss_ctx_id_t context = GSS_C_NO_CONTEXT;
gss_cred_id_t server_creds = GSS_C_NO_CREDENTIAL;
+ OM_uint32 ret_flags = 0;
*negotiate_ret_value = "\0";
goto end;
}
- input_token.length = ap_base64decode_len(auth_param) + 1;
- input_token.value = ap_pcalloc(r->connection->pool, input_token.length);
+ input_token.length = apr_base64_decode_len(auth_param) + 1;
+ input_token.value = apr_pcalloc(r->connection->pool, input_token.length);
if (input_token.value == NULL) {
log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"ap_pcalloc() failed (not enough memory)");
ret = HTTP_INTERNAL_SERVER_ERROR;
goto end;
}
- input_token.length = ap_base64decode(input_token.value, auth_param);
+ input_token.length = apr_base64_decode(input_token.value, auth_param);
#ifdef GSSAPI_SUPPORTS_SPNEGO
accept_sec_token = gss_accept_sec_context;
&client_name,
NULL,
&output_token,
- NULL,
+ &ret_flags,
NULL,
&delegated_cred);
log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
- "Verification returned code %d", major_status);
+ "Client %s us their credential",
+ (ret_flags & GSS_C_DELEG_FLAG) ? "sent" : "didn't send");
if (output_token.length) {
char *token = NULL;
size_t len;
- len = ap_base64encode_len(output_token.length) + 1;
- token = ap_pcalloc(r->connection->pool, len + 1);
+ len = apr_base64_encode_len(output_token.length) + 1;
+ token = apr_pcalloc(r->connection->pool, len + 1);
if (token == NULL) {
log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"ap_pcalloc() failed (not enough memory)");
gss_release_buffer(&minor_status2, &output_token);
goto end;
}
- ap_base64encode(token, output_token.value, output_token.length);
+ apr_base64_encode(token, output_token.value, output_token.length);
token[len] = '\0';
*negotiate_ret_value = token;
log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
"Warning: received token seems to be NTLM, which isn't supported by the Kerberos module. Check your IE configuration.");
log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
- "%s", get_gss_error(r->pool, major_status, minor_status,
+ "%s", get_gss_error(r, major_status, minor_status,
"gss_accept_sec_context() failed"));
/* Don't offer the Negotiate method again if call to GSS layer failed */
*negotiate_ret_value = NULL;
gss_release_name(&minor_status, &client_name);
if (GSS_ERROR(major_status)) {
log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
- "%s", get_gss_error(r->pool, major_status, minor_status,
- "gss_export_name() failed"));
+ "%s", get_gss_error(r, major_status, minor_status,
+ "gss_display_name() failed"));
ret = HTTP_INTERNAL_SERVER_ERROR;
goto end;
}
MK_AUTH_TYPE = MECH_NEGOTIATE;
- MK_USER = ap_pstrdup(r->pool, output_token.value);
+ MK_USER = apr_pstrdup(r->pool, output_token.value);
if (conf->krb_save_credentials && delegated_cred != GSS_C_NO_CREDENTIAL)
store_gss_creds(r, conf, (char *)output_token.value, delegated_cred);
#ifdef KRB5
if (negotiate_ret_value != NULL && conf->krb_method_gssapi) {
negoauth_param = (*negotiate_ret_value == '\0') ? MECH_NEGOTIATE :
- ap_pstrcat(r->pool, MECH_NEGOTIATE " ", negotiate_ret_value, NULL);
- ap_table_add(r->err_headers_out, header_name, negoauth_param);
+ apr_pstrcat(r->pool, MECH_NEGOTIATE " ", negotiate_ret_value, NULL);
+ apr_table_add(r->err_headers_out, header_name, negoauth_param);
}
if ((use_krb5pwd && conf->krb_method_k5pass) || conf->krb_delegate_basic) {
- ap_table_add(r->err_headers_out, header_name,
- ap_pstrcat(r->pool, "Basic realm=\"", auth_name, "\"", NULL));
+ apr_table_add(r->err_headers_out, header_name,
+ apr_pstrcat(r->pool, "Basic realm=\"", auth_name, "\"", NULL));
set_basic = 1;
}
#endif
#ifdef KRB4
if (!set_basic &&
((use_krb4 && conf->krb_method_k4pass) || conf->krb_delegate_basic))
- ap_table_add(r->err_headers_out, header_name,
- ap_pstrcat(r->pool, "Basic realm=\"", auth_name, "\"", NULL));
+ apr_table_add(r->err_headers_out, header_name,
+ apr_pstrcat(r->pool, "Basic realm=\"", auth_name, "\"", NULL));
#endif
}
return ret;
}
+int
+have_rcache_type(const char *type)
+{
+ krb5_error_code ret;
+ krb5_context context;
+ krb5_rcache id = NULL;
+ int found;
+
+ ret = krb5_init_context(&context);
+ if (ret)
+ return 0;
+
+ ret = krb5_rc_resolve_full(context, &id, "none:");
+ found = (ret == 0);
+
+ if (ret == 0)
+ krb5_rc_destroy(context, id);
+ krb5_free_context(context);
+
+ return found;
+}
/***************************************************************************
Module Setup/Configuration
***************************************************************************/
#ifndef STANDARD20_MODULE_STUFF
+static void
+kerb_module_init(server_rec *dummy, pool *p)
+{
+#ifndef HEIMDAL
+ /* Suppress the MIT replay cache. Requires MIT Kerberos 1.4.0 or later.
+ 1.3.x are covered by the hack overiding the replay calls */
+ if (getenv("KRB5RCACHETYPE") == NULL && have_rcache_type("none"))
+ putenv(strdup("KRB5RCACHETYPE=none"));
+#endif
+}
+
module MODULE_VAR_EXPORT auth_kerb_module = {
STANDARD_MODULE_STUFF,
- NULL, /* module initializer */
+ kerb_module_init, /* module initializer */
kerb_dir_create_config, /* per-directory config creator */
NULL, /* per-directory config merger */
NULL, /* per-server config creator */
apr_pool_t *ptemp, server_rec *s)
{
ap_add_version_component(p, "mod_auth_kerb/" MODAUTHKERB_VERSION);
+#ifndef HEIMDAL
+ /* Suppress the MIT replay cache. Requires MIT Kerberos 1.4.0 or later.
+ 1.3.x are covered by the hack overiding the replay calls */
+ if (getenv("KRB5RCACHETYPE") == NULL && have_rcache_type("none"))
+ putenv(strdup("KRB5RCACHETYPE=none"));
+#endif
+
return OK;
}
projects / mod_auth_kerb.git / blobdiff