-/***************************************************************************
- Included Headers And Module Declaration
- ***************************************************************************/
-#ifdef APXS1
+#ident "$Id$"
+
#include "httpd.h"
#include "http_config.h"
#include "http_core.h"
#include "http_protocol.h"
#include "http_request.h"
-module kerb_auth_module;
-#else
-#ifdef APXS2
+#if 0
#include "apr_strings.h"
#include "apr_lib.h"
#include "ap_config.h"
-#include "httpd.h"
-#include "http_config.h"
-#include "http_core.h"
-#include "http_log.h"
-#include "http_protocol.h"
-#include "http_request.h"
-
-module AP_MODULE_DECLARE_DATA kerb_auth_module;
-#endif /* APXS2 */
-#endif /* APXS1 */
+#endif
#ifdef KRB5
#include <krb5.h>
+#include <gssapi.h>
#endif /* KRB5 */
#ifdef KRB4
#include <krb.h>
#endif /* KRB4 */
-
+#ifdef APXS1
+module kerb_auth_module;
+#else
+module AP_MODULE_DECLARE_DATA kerb_auth_module;
+#endif
/***************************************************************************
#define MK_TABLE_TYPE table
#define MK_PSTRDUP ap_pstrdup
#define MK_PROXY STD_PROXY
-#define MK_RERROR_LEVEL ""
#define MK_USER r->connection->user
#define MK_AUTH_TYPE r->connection->ap_auth_type
#define MK_ARRAY_HEADER array_header
#else
-#ifdef APXS2
#define MK_POOL apr_pool_t
#define MK_TABLE_GET apr_table_get
#define MK_TABLE_SET apr_table_set
#define MK_TABLE_TYPE apr_table_t
#define MK_PSTRDUP apr_pstrdup
#define MK_PROXY PROXYREQ_PROXY
-#define MK_RERROR_LEVEL "0, "
#define MK_USER r->user
#define MK_AUTH_TYPE r->ap_auth_type
#define MK_ARRAY_HEADER apr_array_header_t
-#endif /* APXS2 */
#endif /* APXS1 */
Auth Configuration Structure
***************************************************************************/
typedef struct {
- char *krb_auth_type;
+ int krb_auth_enable;
+ char *krb_auth_realms;
+ int krb_fail_status;
+ char *krb_force_instance;
+ int krb_save_credentials;
+ char *krb_tmp_dir;
+ char *service_name;
+ char *krb_lifetime;
+#ifdef KRB5
+ char *krb_5_keytab;
+ int krb_forwardable;
+ int krb_method_gssapi;
+ int krb_method_k5pass;
+#endif
#ifdef KRB4
char *krb_4_srvtab;
+ int krb_method_k4pass;
+#endif
+} kerb_auth_config;
+
+#ifdef APXS1
+static const command_rec kerb_auth_cmds[] = {
+ { "AuthKerberos", ap_set_flag_slot,
+ (void*)XtOffsetOf(kerb_auth_config, krb_auth_enable),
+ OR_AUTHCFG, FLAG, "Permit Kerberos auth without AuthType requirement." },
+
+ { "KrbAuthRealm", ap_set_string_slot,
+ (void*)XtOffsetOf(kerb_auth_config, krb_auth_realms),
+ OR_AUTHCFG, ITERATE, "Realms to attempt authentication against (can be multiple)." },
+
+ { "KrbAuthRealms", ap_set_string_slot,
+ (void*)XtOffsetOf(kerb_auth_config, krb_auth_realms),
+ OR_AUTHCFG, ITERATE, "Alias for KrbAuthRealm." },
+
+#if 0
+ { "KrbFailStatus", kerb_set_fail_slot,
+ (void*)XtOffsetOf(kerb_auth_config, krb_fail_status),
+ OR_AUTHCFG, TAKE1, "If auth fails, return status set here." },
+#endif
+
+ { "KrbForceInstance", ap_set_string_slot,
+ (void*)XtOffsetOf(kerb_auth_config, krb_force_instance),
+ OR_AUTHCFG, TAKE1, "Force authentication against an instance specified here." },
+
+ { "KrbSaveCredentials", ap_set_flag_slot,
+ (void*)XtOffsetOf(kerb_auth_config, krb_save_credentials),
+ OR_AUTHCFG, FLAG, "Save and store credentials/tickets retrieved during auth." },
+
+ { "KrbSaveTickets", ap_set_flag_slot,
+ (void*)XtOffsetOf(kerb_auth_config, krb_save_credentials),
+ OR_AUTHCFG, FLAG, "Alias for KrbSaveCredentials." },
+
+ { "KrbTmpdir", ap_set_string_slot,
+ (void*)XtOffsetOf(kerb_auth_config, krb_tmp_dir),
+ OR_AUTHCFG, TAKE1, "Path to store ticket files and such in." },
+
+ { "KrbServiceName", ap_set_string_slot,
+ (void*)XtOffsetOf(kerb_auth_config, service_name),
+ OR_AUTHCFG, TAKE1, "Kerberos service name to be used by apache." },
+
+#if 0
+ { "KrbLifetime", ap_set_string_slot,
+ (void*)XtOffsetOf(kerb_auth_config, krb_lifetime),
+ OR_AUTHCFG, TAKE1, "Kerberos ticket lifetime." },
+#endif
+
+#ifdef KRB5
+ { "Krb5Keytab", ap_set_file_slot,
+ (void*)XtOffsetOf(kerb_auth_config, krb_5_keytab),
+ OR_AUTHCFG, TAKE1, "Location of Kerberos V5 keytab file." },
+
+ { "KrbForwardable", ap_set_flag_slot,
+ (void*)XtOffsetOf(kerb_auth_config, krb_forwardable),
+ OR_AUTHCFG, FLAG, "Credentials retrieved will be flagged as forwardable."},
+
+ { "KrbMethodGSSAPI", ap_set_flag_slot,
+ (void*)XtOffsetOf(kerb_auth_config, krb_method_gssapi),
+ OR_AUTHCFG, FLAG, "Enable GSSAPI authentication." },
+
+ { "KrbMethodK5Pass", ap_set_flag_slot,
+ (void*)XtOffsetOf(kerb_auth_config, krb_method_k5pass),
+ OR_AUTHCFG, FLAG, "Enable Kerberos V5 password authentication." },
+#endif
+
+#ifdef KRB4
+ { "Krb4Srvtab", ap_set_file_slot,
+ (void*)XtOffsetOf(kerb_auth_config, krb_4_srvtab),
+ OR_AUTHCFG, TAKE1, "Location of Kerberos V4 srvtab file." },
+
+ { "KrbMethodK4Pass", ap_set_flag_slot,
+ (void*)XtOffsetOf(kerb_auth_config, krb_method_k4pass),
+ OR_AUTHCFG, FLAG, "Enable Kerberos V4 password authentication." },
+#endif
+
+ { NULL }
+};
+#else
+static const command_rec kerb_auth_cmds[] = {
+ AP_INIT_FLAG("AuthKerberos", ap_set_flag_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_auth_enable),
+ OR_AUTHCFG, "Permit Kerberos auth without AuthType requirement."),
+
+
+
+#ifdef KRB4
+ AP_INIT_TAKE1("Krb4Srvtab", ap_set_file_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_4_srvtab),
+ OR_AUTHCFG, "Location of Kerberos V4 srvtab file."),
#endif /* KRB4 */
+
#ifdef KRB5
- char *krb_5_keytab;
+ AP_INIT_TAKE1("Krb5Keytab", ap_set_file_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_5_keytab),
+ OR_AUTHCFG, "Location of Kerberos V5 keytab file."),
#endif /* KRB5 */
- int krb_authoritative;
- char *krb_default_realm;
- int krb_fail_status;
- char *krb_force_instance;
+
+#if 0
+ AP_INIT_FLAG("KrbAuthoritative", ap_set_flag_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_authoritative),
+ OR_AUTHCFG, "Refuse to pass request down to lower modules."),
+#endif
+
+ AP_INIT_ITERATE("KrbAuthRealm", ap_set_string_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_auth_realms),
+ OR_AUTHCFG, "Realm to attempt authentication against (can be multiple)."),
+
+#if 0
+ AP_INIT_TAKE1("KrbFailStatus", kerb_set_fail_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_fail_status),
+ OR_AUTHCFG, "If auth fails, return status set here."),
+#endif
+
+ AP_INIT_TAKE1("KrbForceInstance", ap_set_string_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_force_instance),
+ OR_AUTHCFG, "Force authentication against an instance specified here."),
+
#ifdef KRB5
- int krb_forwardable;
+ AP_INIT_FLAG("KrbForwardable", ap_set_flag_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_forwardable),
+ OR_AUTHCFG, "Credentials retrieved will be flagged as forwardable."),
#endif /* KRB5 */
- char *krb_lifetime;
+
+ AP_INIT_TAKE1("KrbLifetime", ap_set_string_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_lifetime),
+ OR_AUTHCFG, "Lifetime of tickets retrieved."),
+
+#ifdef GSSAPI
+ AP_INIT_FLAG("KrbMethodGSSAPI", ap_set_flag_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_method_gssapi),
+ OR_AUTHCFG, "Enable GSSAPI authentication."),
+#endif /* GSSAPI */
+
+#ifdef KRB4
+ AP_INIT_FLAG("KrbMethodK4Pass", ap_set_flag_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_method_k4pass),
+ OR_AUTHCFG, "Enable Kerberos V4 password authentication."),
+#endif /* KRB4 */
+
#ifdef KRB5
- char *krb_renewable;
+ AP_INIT_FLAG("KrbMethodK5Pass", ap_set_flag_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_method_k5pass),
+ OR_AUTHCFG, "Enable Kerberos V5 password authentication."),
+
+ AP_INIT_TAKE1("KrbRenewable", ap_set_string_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_renewable),
+ OR_AUTHCFG, "Credentials retrieved will be renewable for this length."),
#endif /* KRB5 */
- int krb_save_credentials;
- char *krb_tmp_dir;
-} kerb_auth_config;
+
+ AP_INIT_FLAG("KrbSaveCredentials", ap_set_flag_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_save_credentials),
+ OR_AUTHCFG, "Save and store credentials/tickets retrieved during auth."),
+
+ AP_INIT_FLAG("KrbSaveTickets", ap_set_flag_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_save_credentials),
+ OR_AUTHCFG, "Alias for KrbSaveCredentials."),
+
+ AP_INIT_TAKE1("KrbTmpdir", ap_set_string_slot,
+ (void*)APR_XtOffsetOf(kerb_auth_config, krb_tmp_dir),
+ OR_AUTHCFG, "Path to store ticket files and such in."),
+
+ { NULL }
+};
+#endif
+
+/***************************************************************************
+ GSSAPI Support Initialization
+ ***************************************************************************/
+#ifdef KRB5
+typedef struct {
+ gss_ctx_id_t context;
+ gss_cred_id_t server_creds;
+} gss_connection_t;
+
+static gss_connection_t *gss_connection = NULL;
+
+static void
+cleanup_gss_connection(void *data)
+{
+ OM_uint32 minor_status;
+ gss_connection_t *gss_conn = (gss_connection_t *)data;
+
+ if (data == NULL)
+ return;
+ if (gss_conn->context != GSS_C_NO_CONTEXT)
+ gss_delete_sec_context(&minor_status, &gss_conn->context,
+ GSS_C_NO_BUFFER);
+ if (gss_conn->server_creds != GSS_C_NO_CREDENTIAL)
+ gss_release_cred(&minor_status, &gss_conn->server_creds);
+}
+#endif
/***************************************************************************
Auth Configuration Initialization
***************************************************************************/
-static void *kerb_dir_config(MK_POOL *p, char *d)
+static void *kerb_dir_create_config(MK_POOL *p, char *d)
{
- static void *rec;
- rec = (void *) ap_pcalloc(p, sizeof(kerb_auth_config));
+ kerb_auth_config *rec;
+
+ rec = (kerb_auth_config *) ap_pcalloc(p, sizeof(kerb_auth_config));
+ ((kerb_auth_config *)rec)->krb_auth_enable = 1;
((kerb_auth_config *)rec)->krb_fail_status = HTTP_UNAUTHORIZED;
- ((kerb_auth_config *)rec)->krb_authoritative = 0;
- ((kerb_auth_config *)rec)->krb_auth_type = MK_PSTRDUP(p, "None");
+#ifdef KRB5
+ ((kerb_auth_config *)rec)->krb_method_k5pass = 1;
+ ((kerb_auth_config *)rec)->krb_method_gssapi = 1;
+#endif
+#ifdef KRB4
+ ((kerb_auth_config *)rec)->krb_method_k4pass = 1;
+#endif
return rec;
}
return NULL;
}
-/* these are either char *struct_ptr, char *arg or void *struct_ptr, const char *arg */
-static const char *kerb_set_type_slot(cmd_parms *cmd, void *struct_ptr,
- const char *arg)
+
+#ifndef HEIMDAL
+krb5_error_code
+krb5_verify_user(krb5_context context, krb5_principal principal,
+ krb5_ccache ccache, const char *password, krb5_boolean secure,
+ const char *service)
{
- int offset = (int) (long) cmd->info;
- if
-#ifdef KRB5
- (!strncasecmp(arg, "v5", 2))
- *(char **) ((char *)struct_ptr + offset) = MK_PSTRDUP(cmd->pool, "KerberosV5");
- else if
-#endif /* KRB5 */
-#ifdef KRB4
- (!strncasecmp(arg, "v4", 2))
- *(char **) ((char *)struct_ptr + offset) = MK_PSTRDUP(cmd->pool, "KerberosV4");
-#endif /* KRB4 */
- else if
- (!strncasecmp(arg, "dualv5v4", 8))
- *(char **) ((char *)struct_ptr + offset) = MK_PSTRDUP(cmd->pool, "KerberosDualV5V4");
- else if
- (!strncasecmp(arg, "dualv4v5", 8))
- *(char **) ((char *)struct_ptr + offset) = MK_PSTRDUP(cmd->pool, "KerberosDualV4V5");
-#if defined(KRB4) && defined(KRB5)
-#endif /* KRB4 && KRB5 */
- else
- return "AuthKerberos must be V5, V4, DualV4V5, or DualV5V4.";
- return NULL;
+ int ret;
+ krb5_context kcontext;
+ krb5_principal server, client;
+ krb5_timestamp now;
+ krb5_creds my_creds;
+ krb5_flags options = 0;
+ krb5_principal me = NULL;
+ krb5_data tgtname = {
+ 0,
+ KRB5_TGS_NAME_SIZE,
+ KRB5_TGS_NAME
+ };
+
+ memset((char *)&my_creds, 0, sizeof(my_creds));
+ my_creds.client = principal;
+
+ if (krb5_build_principal_ext(kcontext, &server,
+ krb5_princ_realm(kcontext, me)->length,
+ krb5_princ_realm(kcontext, me)->data,
+ tgtname.length, tgtname.data,
+ krb5_princ_realm(kcontext, me)->length,
+ krb5_princ_realm(kcontext, me)->data,
+ 0)) {
+ return ret;
+ }
+
+ my_creds.server = server;
+ if (krb5_timeofday(kcontext, &now))
+ return -1;
+
+ my_creds.times.starttime = 0;
+ /* XXX
+ my_creds.times.endtime = now + lifetime;
+ my_creds.times.renew_till = now + renewal;
+ */
+
+ ret = krb5_get_in_tkt_with_password(kcontext, options, 0, NULL, 0,
+ password, ccache, &my_creds, 0);
+ if (ret) {
+ return ret;
+ }
+
+ return 0;
}
-
-
+#endif
/***************************************************************************
- Auth Configuration Commands
+ Username/Password Validation
***************************************************************************/
-#ifdef APXS1
-command_rec kerb_auth_cmds[] = {
- {
- "AuthKerberos",
- kerb_set_type_slot,
- (void*)XtOffsetOf(kerb_auth_config, krb_auth_type),
- OR_AUTHCFG,
- TAKE1,
- "Permit Kerberos auth without AuthType requirement."
- },
-
-#ifdef KRB4
- {
- "Krb4Srvtab",
- ap_set_file_slot,
- (void*)XtOffsetOf(kerb_auth_config, krb_4_srvtab),
- RSRC_CONF & ACCESS_CONF,
- TAKE1,
- "Location of Kerberos V4 srvtab file."
- },
-#endif /* KRB4 */
-
-#ifdef KRB5
- {
- "Krb5Keytab",
- ap_set_file_slot,
- (void*)XtOffsetOf(kerb_auth_config, krb_5_keytab),
- RSRC_CONF & ACCESS_CONF,
- TAKE1,
- "Location of Kerberos V5 keytab file."
- },
-#endif /* KRB5 */
-
- {
- "KrbAuthoritative",
- ap_set_flag_slot,
- (void*)XtOffsetOf(kerb_auth_config, krb_authoritative),
- OR_AUTHCFG,
- FLAG,
- "Refuse to pass request down to lower modules."
- },
-
- {
- "KrbDefaultRealm",
- ap_set_string_slot,
- (void*)XtOffsetOf(kerb_auth_config, krb_default_realm),
- OR_AUTHCFG,
- TAKE1,
- "Default realm to authenticate users against."
- },
-
- {
- "KrbFailStatus",
- kerb_set_fail_slot,
- (void*)XtOffsetOf(kerb_auth_config, krb_fail_status),
- OR_AUTHCFG,
- TAKE1,
- "If auth fails, return status set here."
- },
-
- {
- "KrbForceInstance",
- ap_set_string_slot,
- (void*)XtOffsetOf(kerb_auth_config, krb_force_instance),
- OR_AUTHCFG,
- TAKE1,
- "Force authentication against an instance specified here."
- },
-
#ifdef KRB5
- {
- "KrbForwardable",
- ap_set_flag_slot,
- (void*)XtOffsetOf(kerb_auth_config, krb_forwardable),
- OR_AUTHCFG,
- FLAG,
- "Credentials retrieved will be flagged as forwardable."
- },
-#endif /* KRB5 */
+static void
+krb5_cache_cleanup(void *data)
+{
+ krb5_context context;
+ krb5_ccache cache;
+ krb5_error_code problem;
+ char *cache_name = (char *) data;
+
+ problem = krb5_init_context(&context);
+ if (problem) {
+ ap_log_error(APLOG_MARK, APLOG_ERR, NULL, "krb5_init_context() failed");
+ return;
+ }
+
+ problem = krb5_cc_resolve(context, cache_name, &cache);
+ if (problem) {
+ ap_log_error(APLOG_MARK, APLOG_ERR, NULL,
+ "krb5_cc_resolve() failed (%s: %s)",
+ cache_name, krb5_get_err_text(context, problem));
+ return;
+ }
+
+ krb5_cc_destroy(context, cache);
+ krb5_free_context(context);
+}
- {
- "KrbLifetime",
- ap_set_string_slot,
- (void*)XtOffsetOf(kerb_auth_config, krb_lifetime),
- OR_AUTHCFG,
- TAKE1,
- "Lifetime of tickets retrieved."
- },
+static int
+create_krb5_ccache(krb5_context kcontext,
+ request_rec *r,
+ kerb_auth_config *conf,
+ krb5_principal princ,
+ krb5_ccache *ccache)
+{
+ char *c, ccname[MAX_STRING_LEN];
+ krb5_error_code problem;
+ char errstr[1024];
+ int ret;
+ krb5_ccache tmp_ccache = NULL;
-#ifdef KRB5
- {
- "KrbRenewable",
- ap_set_string_slot,
- (void*)XtOffsetOf(kerb_auth_config, krb_renewable),
- OR_AUTHCFG,
- TAKE1,
- "Credentials retrieved will be renewable for this length."
- },
-#endif /* KRB5 */
+ snprintf(ccname, sizeof(ccname), "FILE:%s/k5cc_ap_%s",
+ conf->krb_tmp_dir ? conf->krb_tmp_dir : "/tmp",
+ MK_USER);
- {
- "KrbSaveCredentials",
- ap_set_flag_slot,
- (void*)XtOffsetOf(kerb_auth_config, krb_save_credentials),
- OR_AUTHCFG,
- FLAG,
- "Save and store credentials/tickets retrieved during auth."
- },
-
- {
- "KrbSaveTickets",
- ap_set_flag_slot,
- (void*)XtOffsetOf(kerb_auth_config, krb_save_credentials),
- OR_AUTHCFG,
- FLAG,
- "Alias for KrbSaveCredentials."
- },
-
- {
- "KrbTmpdir",
- ap_set_string_slot,
- (void*)XtOffsetOf(kerb_auth_config, krb_tmp_dir),
- OR_AUTHCFG,
- TAKE1,
- "Path to store ticket files and such in."
- },
-
- { NULL }
-};
-#else
-#ifdef APXS2
-static const command_rec kerb_auth_cmds[] = {
- AP_INIT_TAKE1(
- "AuthKerberos",
- kerb_set_type_slot,
- (void*)APR_XtOffsetOf(kerb_auth_config, krb_auth_type),
- OR_AUTHCFG,
- "Permit Kerberos auth without AuthType requirement."
- ),
+ for (c = ccname + strlen(conf->krb_tmp_dir ? conf->krb_tmp_dir :
+ "/tmp") + 1; *c; c++) {
+ if (*c == '/')
+ *c = '.';
+ }
-#ifdef KRB4
- AP_INIT_TAKE1(
- "Krb4Srvtab",
- ap_set_file_slot,
- (void*)APR_XtOffsetOf(kerb_auth_config, krb_4_srvtab),
- RSRC_CONF & ACCESS_CONF,
- "Location of Kerberos V4 srvtab file."
- ),
-#endif /* KRB4 */
+#if 0
+ /* not sure what's the purpose of this call here */
+ problem = krb5_cc_set_default_name(kcontext, ccname);
+ if (problem) {
+ snprintf(errstr, sizeof(errstr),
+ "krb5_cc_set_default_name() failed: %s",
+ krb5_get_err_text(kcontext, problem));
+ ap_log_reason (errstr, r->uri, r);
+ ret = SERVER_ERROR;
+ goto end;
+ }
+
+#endif
+
+#if 0
+ /* XXX Dan: Why is this done? Cleanup? But the file would not be
+ * accessible from another processes (CGI) */
+ unlink(ccname+strlen("FILE:"));
+#endif
+
+ problem = krb5_cc_resolve(kcontext, ccname, &tmp_ccache);
+ if (problem) {
+ snprintf(errstr, sizeof(errstr),
+ "krb5_cc_resolve() failed: %s",
+ krb5_get_err_text(kcontext, problem));
+ ap_log_reason (errstr, r->uri, r);
+ ret = SERVER_ERROR;
+ goto end;
+ }
-#ifdef KRB5
- AP_INIT_TAKE1(
- "Krb5Keytab",
- ap_set_file_slot,
- (void*)APR_XtOffsetOf(kerb_auth_config, krb_5_keytab),
- RSRC_CONF & ACCESS_CONF,
- "Location of Kerberos V5 keytab file."
- ),
-#endif /* KRB5 */
+ problem = krb5_cc_initialize(kcontext, tmp_ccache, princ);
+ if (problem) {
+ snprintf(errstr, sizeof(errstr),
+ "krb5_cc_initialize() failed: %s",
+ krb5_get_err_text(kcontext, problem));
+ ap_log_reason (errstr, r->uri, r);
+ ret = SERVER_ERROR;
+ goto end;
+ }
- AP_INIT_FLAG(
- "KrbAuthoritative",
- ap_set_flag_slot,
- (void*)APR_XtOffsetOf(kerb_auth_config, krb_authoritative),
- OR_AUTHCFG,
- "Refuse to pass request down to lower modules."
- ),
-
- AP_INIT_TAKE1(
- "KrbDefaultRealm",
- ap_set_string_slot,
- (void*)APR_XtOffsetOf(kerb_auth_config, krb_default_realm),
- OR_AUTHCFG,
- "Default realm to authenticate users against."
- ),
-
- AP_INIT_TAKE1(
- "KrbFailStatus",
- kerb_set_fail_slot,
- (void*)APR_XtOffsetOf(kerb_auth_config, krb_fail_status),
- OR_AUTHCFG,
- "If auth fails, return status set here."
- ),
-
- AP_INIT_TAKE1(
- "KrbForceInstance",
- ap_set_string_slot,
- (void*)APR_XtOffsetOf(kerb_auth_config, krb_force_instance),
- OR_AUTHCFG,
- "Force authentication against an instance specified here."
- ),
+ ap_table_setn(r->subprocess_env, "KRB5CCNAME", ccname);
+ ap_register_cleanup(r->pool, ccname,
+ krb5_cache_cleanup, ap_null_cleanup);
-#ifdef KRB5
- AP_INIT_FLAG(
- "KrbForwardable",
- ap_set_flag_slot,
- (void*)APR_XtOffsetOf(kerb_auth_config, krb_forwardable),
- OR_AUTHCFG,
- "Credentials retrieved will be flagged as forwardable."
- ),
-#endif /* KRB5 */
+ *ccache = tmp_ccache;
+ tmp_ccache = NULL;
- AP_INIT_TAKE1(
- "KrbLifetime",
- ap_set_string_slot,
- (void*)APR_XtOffsetOf(kerb_auth_config, krb_lifetime),
- OR_AUTHCFG,
- "Lifetime of tickets retrieved."
- ),
+ ret = OK;
-#ifdef KRB5
- AP_INIT_TAKE1(
- "KrbRenewable",
- ap_set_string_slot,
- (void*)APR_XtOffsetOf(kerb_auth_config, krb_renewable),
- OR_AUTHCFG,
- "Credentials retrieved will be renewable for this length."
- ),
-#endif /* KRB5 */
-
- AP_INIT_FLAG(
- "KrbSaveCredentials",
- ap_set_flag_slot,
- (void*)APR_XtOffsetOf(kerb_auth_config, krb_save_credentials),
- OR_AUTHCFG,
- "Save and store credentials/tickets retrieved during auth."
- ),
-
- AP_INIT_FLAG(
- "KrbSaveTickets",
- ap_set_flag_slot,
- (void*)APR_XtOffsetOf(kerb_auth_config, krb_save_credentials),
- OR_AUTHCFG,
- "Alias for KrbSaveCredentials."
- ),
-
- AP_INIT_TAKE1(
- "KrbTmpdir",
- ap_set_string_slot,
- (void*)APR_XtOffsetOf(kerb_auth_config, krb_tmp_dir),
- OR_AUTHCFG,
- "Path to store ticket files and such in."
- ),
-
- { NULL }
-};
-#endif /* APXS2 */
-#endif /* APXS1 */
+end:
+ if (tmp_ccache)
+ krb5_cc_destroy(kcontext, tmp_ccache);
+ return ret; /* XXX */
+}
+static int
+store_krb5_creds(krb5_context kcontext,
+ request_rec *r,
+ kerb_auth_config *conf,
+ krb5_ccache delegated_cred)
+{
+ char errstr[1024];
+ krb5_error_code problem;
+ krb5_principal princ;
+ krb5_ccache ccache;
+ int ret;
+
+ problem = krb5_cc_get_principal(kcontext, delegated_cred, &princ);
+ if (problem) {
+ snprintf(errstr, sizeof(errstr), "krb5_cc_get_principal() failed: %s",
+ krb5_get_err_text(kcontext, problem));
+ return SERVER_ERROR;
+ }
+
+ ret = create_krb5_ccache(kcontext, r, conf, princ, &ccache);
+ if (ret) {
+ krb5_free_principal(kcontext, princ);
+ return ret;
+ }
+
+ problem = krb5_cc_copy_cache(kcontext, delegated_cred, ccache);
+ krb5_free_principal(kcontext, princ);
+ if (problem) {
+ snprintf(errstr, sizeof(errstr), "krb5_cc_copy_cache() failed: %s",
+ krb5_get_err_text(kcontext, problem));
+ krb5_cc_destroy(kcontext, ccache);
+ return SERVER_ERROR;
+ }
+
+ krb5_cc_close(kcontext, ccache);
+ return OK;
+}
+int authenticate_user_krb5pwd(request_rec *r,
+ kerb_auth_config *conf,
+ const char *auth_line)
+{
+ const char *sent_pw = NULL;
+ const char *realms = NULL;
+ krb5_context kcontext;
+ krb5_error_code code;
+ krb5_principal client = NULL;
+ krb5_ccache ccache = NULL;
+ int ret;
+
+ code = krb5_init_context(&kcontext);
+ if (code) {
+ ap_log_rerror(APLOG_MARK, APLOG_NOERRNO, r,
+ "Cannot initialize Kerberos5 context (%d)", code);
+ return SERVER_ERROR;
+ }
+
+ sent_pw = ap_uudecode(r->pool, auth_line);
+ r->connection->user = ap_getword (r->pool, &sent_pw, ':');
+ r->connection->ap_auth_type = "Basic";
+
+ /* do not allow user to override realm setting of server */
+ if (strchr(r->connection->user,'@')) {
+ ap_log_rerror(APLOG_MARK, APLOG_NOERRNO, r,
+ "specifying realm in user name is prohibited");
+ ret = HTTP_UNAUTHORIZED;
+ goto end;
+ }
+
+#ifdef HEIMDAL
+ code = krb5_cc_gen_new(kcontext, &krb5_mcc_ops, &ccache);
+#else
+ code = krb5_mcc_generate_new(kcontext, &ccache);
+#endif
+ if (code) {
+ ap_log_rerror(APLOG_MARK, APLOG_NOERRNO, r,
+ "Cannot generate new ccache: %s",
+ krb5_get_err_text(kcontext, code));
+ ret = SERVER_ERROR;
+ goto end;
+ }
+
+ realms = conf->krb_auth_realms;
+ do {
+ if (realms && krb5_set_default_realm(kcontext,
+ ap_getword_white(r->pool, &realms)))
+ continue;
+
+ code = krb5_parse_name(kcontext, r->connection->user, &client);
+ if (code)
+ continue;
+
+ code = krb5_verify_user(kcontext, client, ccache, sent_pw, 1, "khttp");
+ krb5_free_principal(kcontext, client);
+ if (code == 0)
+ break;
+
+ /* ap_getword_white() used above shifts the parameter, so it's not
+ needed to touch the realms variable */
+ } while (realms && *realms);
+
+ memset((char *)sent_pw, 0, strlen(sent_pw));
+
+ if (code) {
+ ap_log_rerror(APLOG_MARK, APLOG_NOERRNO, r,
+ "Verifying krb5 password failed: %s",
+ krb5_get_err_text(kcontext, code));
+ ret = HTTP_UNAUTHORIZED;
+ goto end;
+ }
+
+ if (conf->krb_save_credentials) {
+ ret = store_krb5_creds(kcontext, r, conf, ccache);
+ if (ret) /* Ignore error ?? */
+ goto end;
+ }
+
+ ret = OK;
+
+end:
+ if (client)
+ krb5_free_principal(kcontext, client);
+ if (ccache)
+ krb5_cc_destroy(kcontext, ccache);
+ krb5_free_context(kcontext);
+
+ return ret;
+}
+#endif /* KRB5 */
-/***************************************************************************
- Username/Password Validation
- ***************************************************************************/
-#ifdef KRB5
-int kerb5_password_validate(const char *user, const char *pass) {
+#ifdef KRB4
+int kerb4_password_validate(request_rec *r, const char *user, const char *pass)
+{
+ kerb_auth_config *conf =
+ (kerb_auth_config *)ap_get_module_config(r->per_dir_config,
+ &kerb_auth_module);
int ret;
- krb5_context kcontext;
- krb5_principal server, me;
- krb5_creds my_creds;
- krb5_timestamp now;
- krb5_deltat lifetime = 0;
- krb5_data tgtname = {
- 0,
- KRB5_TGS_NAME_SIZE,
- KRB5_TGS_NAME
- };
-
- if (krb5_init_context(&kcontext))
+ int lifetime = DEFAULT_TKT_LIFE;
+ char *c, *tfname;
+ char *username = NULL;
+ char *instance = NULL;
+ char *realm = NULL;
+
+ username = (char *)ap_pstrdup(r->pool, user);
+ if (!username) {
return 0;
+ }
- memset((char *)&my_creds, 0, sizeof(my_creds));
- if(krb5_parse_name(kcontext, user, &me))
- return 0;
- my_creds.client = me;
+ instance = strchr(username, '.');
+ if (instance) {
+ *instance++ = '\0';
+ }
+ else {
+ instance = "";
+ }
- if (krb5_build_principal_ext(kcontext, &server,
- krb5_princ_realm(kcontext, me)->length,
- krb5_princ_realm(kcontext, me)->data,
- tgtname.length, tgtname.data,
- krb5_princ_realm(kcontext, me)->length,
- krb5_princ_realm(kcontext, me)->data,
- 0)) {
- return 0;
+ realm = strchr(username, '@');
+ if (realm) {
+ *realm++ = '\0';
+ }
+ else {
+ realm = "";
}
- my_creds.server = server;
- if (krb5_timeofday(kcontext, &now))
- return 0;
- my_creds.times.starttime = 0;
- my_creds.times.endtime = now + lifetime;
- my_creds.times.renew_till = 0;
- ret = krb5_get_in_tkt_with_password(kcontext, 0, 0, NULL, 0,
- pass, NULL, &my_creds, 0);
- if (ret) {
- return 0;
+ if (conf->krb_lifetime) {
+ lifetime = atoi(conf->krb_lifetime);
}
- krb5_free_cred_contents(kcontext, &my_creds);
+ if (conf->krb_force_instance) {
+ instance = conf->krb_force_instance;
+ }
- return 1;
-}
-#endif /* KRB5 */
+ if (conf->krb_save_credentials) {
+ tfname = (char *)malloc(sizeof(char) * MAX_STRING_LEN);
+ sprintf(tfname, "%s/k5cc_ap_%s",
+ conf->krb_tmp_dir ? conf->krb_tmp_dir : "/tmp",
+ MK_USER);
-#ifdef KRB4
-int kerb4_password_validate(const char *user, const char *pass) {
- int ret;
- char realm[REALM_SZ];
+ if (!strcmp(instance, "")) {
+ tfname = strcat(tfname, ".");
+ tfname = strcat(tfname, instance);
+ }
- ret = krb_get_lrealm(realm, 1);
- if (ret != KSUCCESS)
- return 0;
+ if (!strcmp(realm, "")) {
+ tfname = strcat(tfname, ".");
+ tfname = strcat(tfname, realm);
+ }
+
+ for (c = tfname + strlen(conf->krb_tmp_dir ? conf->krb_tmp_dir :
+ "/tmp") + 1; *c; c++) {
+ if (*c == '/')
+ *c = '.';
+ }
+
+ krb_set_tkt_string(tfname);
+ }
+
+ if (!strcmp(realm, "")) {
+ realm = (char *)malloc(sizeof(char) * (REALM_SZ + 1));
+ ret = krb_get_lrealm(realm, 1);
+ if (ret != KSUCCESS)
+ return 0;
+ }
- ret = krb_get_pw_in_tkt((char *)user, "", realm, "krbtgt", realm,
- DEFAULT_TKT_LIFE, (char *)pass);
+ ret = krb_get_pw_in_tkt((char *)user, instance, realm, "krbtgt", realm,
+ lifetime, (char *)pass);
switch (ret) {
case INTK_OK:
case INTK_W_NOTALL:
/***************************************************************************
- User Authentication
+ GSSAPI Validation
***************************************************************************/
-int kerb_authenticate_user(request_rec *r) {
- const char *name; /* AuthName specified */
- const char *type; /* AuthType specified */
- int KerberosV5 = 0; /* Kerberos V5 check enabled */
- int KerberosV4 = 0; /* Kerberos V4 check enabled */
- int KerberosV4first = 0; /* Kerberos V4 check first */
- const char *sent_pw; /* Password sent by browser */
- int res; /* Response holder */
- int retcode; /* Return code holder */
- const char *t; /* Decoded auth_line */
- const char *authtype; /* AuthType to send back to browser */
- const char *auth_line = MK_TABLE_GET(r->headers_in,
- (r->proxyreq == MK_PROXY)
- ? "Proxy-Authorization"
- : "Authorization");
- kerb_auth_config *conf =
- (kerb_auth_config *)ap_get_module_config(r->per_dir_config,
- &kerb_auth_module);
+#ifdef GSSAPI
+static const char *
+get_gss_error(pool *p, OM_uint32 error_status, char *prefix)
+{
+ OM_uint32 maj_stat, min_stat;
+ OM_uint32 msg_ctx = 0;
+ gss_buffer_desc status_string;
+ char buf[1024];
+ size_t len;
+
+ snprintf(buf, sizeof(buf), "%s: ", prefix);
+ len = strlen(buf);
+ do {
+ maj_stat = gss_display_status (&min_stat,
+ error_status,
+ GSS_C_MECH_CODE,
+ GSS_C_NO_OID,
+ &msg_ctx,
+ &status_string);
+ if (sizeof(buf) > len + status_string.length + 1) {
+ sprintf(buf+len, "%s:", (char*) status_string.value);
+ len += status_string.length;
+ }
+ gss_release_buffer(&min_stat, &status_string);
+ } while (!GSS_ERROR(maj_stat) && msg_ctx != 0);
+
+ return (ap_pstrdup(p, buf));
+}
- type = ap_auth_type(r);
+static int
+get_gss_creds(request_rec *r,
+ kerb_auth_config *conf,
+ gss_cred_id_t *server_creds)
+{
+ int ret = 0;
+ gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER;
+ OM_uint32 major_status, minor_status;
+ gss_name_t server_name = GSS_C_NO_NAME;
+
+ if (conf->service_name) {
+ input_token.value = conf->service_name;
+ input_token.length = strlen(conf->service_name) + 1;
+ }
+ else {
+ input_token.value = "khttp";
+ input_token.length = 6;
+ }
+ major_status = gss_import_name(&minor_status, &input_token,
+ (conf->service_name) ?
+ GSS_C_NT_USER_NAME : GSS_C_NT_HOSTBASED_SERVICE,
+ &server_name);
+ if (GSS_ERROR(major_status)) {
+ ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, r,
+ "%s", get_gss_error(r->pool, minor_status,
+ "gss_import_name() failed"));
+ ret = SERVER_ERROR;
+ goto fail;
+ }
+
+#ifdef KRB5
+ if (conf->krb_5_keytab)
+ setenv("KRB5_KTNAME", conf->krb_5_keytab, 1);
+#endif
- if (type != NULL) {
+ major_status = gss_acquire_cred(&minor_status, server_name, GSS_C_INDEFINITE,
+ GSS_C_NO_OID_SET, GSS_C_ACCEPT,
+ server_creds, NULL, NULL);
#ifdef KRB5
- if ((strncasecmp(type, "KerberosV5", 10) == 0) ||
- (strncasecmp(conf->krb_auth_type, "KerberosV5", 10) == 0)) {
- KerberosV5 = 1;
- }
-#endif /* KRB5 */
+ if (conf->krb_5_keytab)
+ unsetenv("KRB5_KTNAME");
+#endif
+ if (GSS_ERROR(major_status)) {
+ ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, r,
+ "%s", get_gss_error(r->pool, minor_status,
+ "gss_acquire_cred() failed"));
+ ret = SERVER_ERROR;
+ goto fail;
+ }
+
+ return 0;
+
+fail:
+ /* XXX cleanup */
+
+ return ret;
+}
-#ifdef KRB4
- if ((strncasecmp(type, "KerberosV4", 10) == 0) ||
- (strncasecmp(conf->krb_auth_type, "KerberosV4", 10) == 0)) {
- KerberosV4 = 1;
- }
-#endif /* KRB4 */
+static int
+authenticate_user_gss(request_rec *r,
+ kerb_auth_config *conf,
+ const char *auth_line)
+{
+ OM_uint32 major_status, minor_status, minor_status2;
+ gss_buffer_desc input_token = GSS_C_EMPTY_BUFFER;
+ gss_buffer_desc output_token = GSS_C_EMPTY_BUFFER;
+ const char *auth_param = NULL;
+ int ret;
+ gss_name_t client_name = GSS_C_NO_NAME;
+ gss_cred_id_t delegated_cred = GSS_C_NO_CREDENTIAL;
+
+ if (gss_connection == NULL) {
+ gss_connection = ap_pcalloc(r->connection->pool, sizeof(*gss_connection));
+ if (gss_connection == NULL) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
+ "ap_pcalloc() failed (not enough memory)");
+ ret = SERVER_ERROR;
+ goto end;
+ }
+ memset(gss_connection, 0, sizeof(*gss_connection));
+ ap_register_cleanup(r->connection->pool, gss_connection, cleanup_gss_connection, ap_null_cleanup);
+ }
+
+ if (gss_connection->server_creds == GSS_C_NO_CREDENTIAL) {
+ ret = get_gss_creds(r, conf, &gss_connection->server_creds);
+ if (ret)
+ goto end;
+ }
+
+ /* ap_getword() shifts parameter */
+ auth_param = ap_getword_white(r->pool, &auth_line);
+ if (auth_param == NULL) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
+ "No Authorization parameter in request from client");
+ ret = HTTP_UNAUTHORIZED;
+ goto end;
+ }
+
+ input_token.length = ap_base64decode_len(auth_param);
+ input_token.value = ap_pcalloc(r->connection->pool, input_token.length);
+ if (input_token.value == NULL) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
+ "ap_pcalloc() failed (not enough memory)");
+ ret = SERVER_ERROR;
+ goto end;
+ }
+ input_token.length = ap_base64decode(input_token.value, auth_param);
+
+ major_status = gss_accept_sec_context(&minor_status,
+ &gss_connection->context,
+ gss_connection->server_creds,
+ &input_token,
+ GSS_C_NO_CHANNEL_BINDINGS,
+ &client_name,
+ NULL,
+ &output_token,
+ NULL,
+ NULL,
+ &delegated_cred);
+ if (output_token.length) {
+ char *token = NULL;
+ size_t len;
+
+ len = ap_base64encode_len(output_token.length);
+ token = ap_pcalloc(r->connection->pool, len + 1);
+ if (token == NULL) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
+ "ap_pcalloc() failed (not enough memory)");
+ ret = SERVER_ERROR;
+ gss_release_buffer(&minor_status2, &output_token);
+ goto end;
+ }
+ ap_base64encode(token, output_token.value, output_token.length);
+ token[len] = '\0';
+ ap_table_set(r->err_headers_out, "WWW-Authenticate",
+ ap_pstrcat(r->pool, "GSS-Negotiate ", token, NULL));
+ gss_release_buffer(&minor_status2, &output_token);
+ }
+
+ if (GSS_ERROR(major_status)) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
+ "%s", get_gss_error(r->pool, minor_status,
+ "gss_accept_sec_context() failed"));
+ ret = HTTP_UNAUTHORIZED;
+ goto end;
+ }
+
+ if (major_status & GSS_S_CONTINUE_NEEDED) {
+ /* Some GSSAPI mechanism (eg GSI from Globus) may require multiple
+ * iterations to establish authentication */
+ ret = HTTP_UNAUTHORIZED;
+ goto end;
+ }
+
+ major_status = gss_export_name(&minor_status, client_name, &output_token);
+ gss_release_name(&minor_status, &client_name);
+ if (GSS_ERROR(major_status)) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
+ "%s", get_gss_error(r->pool, minor_status,
+ "gss_export_name() failed"));
+ ret = SERVER_ERROR;
+ goto end;
+ }
+
+ r->connection->ap_auth_type = "Negotiate";
+ r->connection->user = ap_pstrdup(r->pool, output_token.value);
+#if 0
+ /* If the user comes from a realm specified by configuration don't include
+ its realm name in the username so that the authorization routine could
+ work for both Password-based and Ticket-based authentication. It's
+ administrators responsibility to include only such realm that have
+ unified principal instances, i.e. if the same principal name occures in
+ multiple realms, it must be always assigned to a single user.
+ */
+ p = strchr(r->connection->user, '@');
+ if (p != NULL) {
+ const char *realms = conf->gss_krb5_realms;
+
+ while (realms && *realms) {
+ if (strcmp(p+1, ap_getword_white(r->pool, &realms)) == 0) {
+ *p = '\0';
+ break;
+ }
+ }
+ }
+#endif
+
+ gss_release_buffer(&minor_status, &output_token);
+
+#if 0
+ /* This should be only done if afs token are requested or gss_save creds is
+ * specified */
+ /* gss_export_cred() from the GGF GSS Extensions could be used */
+ if (delegated_cred != GSS_C_NO_CREDENTIAL &&
+ (conf->gss_save_creds || (conf->gss_krb5_cells && k_hasafs()))) {
+ krb5_init_context(&krb_ctx);
+ do_afs_log(krb_ctx, r, delegated_cred->ccache, conf->gss_krb5_cells);
+ ret = store_krb5_creds(krb_ctx, r, conf, delegated_cred->ccache);
+ krb5_free_context(krb_ctx);
+ if (ret)
+ goto end;
+ }
+#endif
+ ret = OK;
+
+end:
+ if (delegated_cred)
+ gss_release_cred(&minor_status, &delegated_cred);
+
+ if (output_token.length)
+ gss_release_buffer(&minor_status, &output_token);
+
+ if (client_name != GSS_C_NO_NAME)
+ gss_release_name(&minor_status, &client_name);
+
+ return ret;
+}
+#endif /* GSSAPI */
-#if defined(KRB5) && defined(KRB4)
- if ((strncasecmp(type, "KerberosDualV5V4", 15) == 0) ||
- (strncasecmp(conf->krb_auth_type, "KerberosDualV5V4", 15) == 0)) {
- KerberosV5 = 1;
- KerberosV4 = 1;
- }
- if ((strncasecmp(type, "KerberosDualV4V5", 15) == 0) ||
- (strncasecmp(conf->krb_auth_type, "KerberosDualV4V5", 15) == 0)) {
- KerberosV5 = 1;
- KerberosV4 = 1;
- KerberosV4first = 1;
- }
-#endif /* KRB5 && KRB4 */
- }
+static void
+note_auth_failure(request_rec *r, const kerb_auth_config *conf)
+{
+ const char *auth_type = NULL;
+ const char *auth_name = NULL;
- if (!KerberosV4 && !KerberosV5) {
- if (conf->krb_authoritative) {
- return HTTP_UNAUTHORIZED;
- }
- else {
- return DECLINED;
- }
- }
+ /* get the type specified in .htaccess */
+ auth_type = ap_auth_type(r);
- name = ap_auth_name(r);
- if (!name) {
- ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r,
- MK_RERROR_LEVEL "need AuthName: %s", r->uri);
- return HTTP_INTERNAL_SERVER_ERROR;
- }
+ /* get the user realm specified in .htaccess */
+ auth_name = ap_auth_name(r);
+
+ /* XXX should the WWW-Authenticate header be cleared first? */
+#ifdef KRB5
+ if (conf->krb_method_gssapi)
+ ap_table_add(r->err_headers_out, "WWW-Authenticate", "GSS-Negotiate ");
+#endif
+ if (auth_type && strncasecmp(auth_type, "KerberosV5", 10) == 0)
+ ap_table_add(r->err_headers_out, "WWW-Authenticate",
+ ap_pstrcat(r->pool, "Basic realm=\"", auth_name, "\"", NULL));
+}
- if (!auth_line) {
- MK_TABLE_SET(r->err_headers_out, "WWW-Authenticate",
- ap_pstrcat(r->pool, "Basic realm=\"", name, "\"", NULL));
- return HTTP_UNAUTHORIZED;
- }
- type = ap_getword_white(r->pool, &auth_line);
- t = ap_pbase64decode(r->pool, auth_line);
- MK_USER = ap_getword_nulls(r->pool, &t, ':');
- MK_AUTH_TYPE = "Kerberos";
- sent_pw = ap_getword_white(r->pool, &t);
- retcode = DECLINED;
+/***************************************************************************
+ User Authentication
+ ***************************************************************************/
+int kerb_authenticate_user(request_rec *r)
+{
+ kerb_auth_config *conf =
+ (kerb_auth_config *) ap_get_module_config(r->per_dir_config,
+ &kerb_auth_module);
+ const char *auth_type = NULL;
+ const char *auth_line = NULL;
+ const char *type = NULL;
+ int ret;
+
+ /* get the type specified in .htaccess */
+ type = ap_auth_type(r);
+
+ if (!conf->krb_auth_enable &&
+ (type == NULL || (strncasecmp(type, "Kerberos", 8) != 0)))
+ return DECLINED;
+
+ /* get what the user sent us in the HTTP header */
+ auth_line = MK_TABLE_GET(r->headers_in, "Authorization");
+ if (!auth_line) {
+ note_auth_failure(r, conf);
+ return HTTP_UNAUTHORIZED;
+ }
+ auth_type = ap_getword_white(r->pool, &auth_line);
+
+ ret = HTTP_UNAUTHORIZED;
+
+ /* XXX Support for AuthType=Kerberos */
#ifdef KRB5
- if (KerberosV5 && !KerberosV4first && retcode != OK) {
- MK_AUTH_TYPE = "KerberosV5";
- if (kerb5_password_validate(MK_USER, sent_pw)) {
- retcode = OK;
- }
- else {
- retcode = conf->krb_fail_status;
- }
- }
-#endif /* KRB5 */
+ if (conf->krb_method_gssapi &&
+ strcasecmp(auth_type, "GSS-Negotiate") == 0) {
+ ret = authenticate_user_gss(r, conf, auth_line);
+ } else if (conf->krb_method_k5pass &&
+ strcasecmp(auth_type, "Basic") == 0) {
+ ret = authenticate_user_krb5pwd(r, conf, auth_line);
+ }
+#endif
#ifdef KRB4
- if (KerberosV4 && retcode != OK) {
- MK_AUTH_TYPE = "KerberosV4";
- if (kerb4_password_validate(MK_USER, sent_pw)) {
- retcode = OK;
- }
- else {
- retcode = conf->krb_fail_status;
- }
- }
-#endif /* KRB4 */
+ if (ret == HTTP_UNAUTHORIZED && conf->krb_method_k4pass &&
+ strcasecmp(auth_type, "Basic") == 0)
+ ret = authenticate_user_krb4pwd(r, conf, auth_line);
+#endif
-#if defined(KRB5) && defined(KRB4)
- if (KerberosV5 && KerberosV4first && retcode != OK) {
- MK_AUTH_TYPE = "KerberosV5";
- if (kerb5_password_validate(MK_USER, sent_pw)) {
- retcode = OK;
- }
- else {
- retcode = conf->krb_fail_status;
- }
- }
-#endif /* KRB5 && KRB4 */
+ if (ret == HTTP_UNAUTHORIZED)
+ note_auth_failure(r, conf);
- if (conf->krb_authoritative && retcode == DECLINED) {
- return HTTP_UNAUTHORIZED;
- }
- else {
- return retcode;
- }
+ return ret;
}
-
-
-/***************************************************************************
- Access Verification
- ***************************************************************************/
-int kerb_check_user_access(request_rec *r) {
+#if 0
+int kerb_check_user_access(request_rec *r)
+{
register int x;
const char *t, *w;
const MK_ARRAY_HEADER *reqs_arr = ap_requires(r);
return DECLINED;
}
+#endif
module MODULE_VAR_EXPORT kerb_auth_module = {
STANDARD_MODULE_STUFF,
NULL, /* module initializer */
- kerb_dir_config, /* per-directory config creator */
+ kerb_dir_create_config, /* per-directory config creator */
NULL, /* per-directory config merger */
NULL, /* per-server config creator */
NULL, /* per-server config merger */
NULL, /* [ 9] content handlers */
NULL, /* [ 2] URI-to-filename translation */
kerb_authenticate_user, /* [ 5] check/validate user_id */
- kerb_check_user_access, /* [ 6] check user_id is valid *here* */
+ NULL, /* [ 6] check user_id is valid *here* */
NULL, /* [ 4] check access by host address */
NULL, /* [ 7] MIME type checker/setter */
NULL, /* [ 8] fixups */
NULL, /* process initialization */
NULL, /* process exit/cleanup */
NULL /* [ 1] post read_request handling */
-#ifdef EAPI
- , /* EAPI Additions */
- NULL, /* EAPI add module */
- NULL, /* EAPI remove module */
- NULL, /* EAPI rewrite command */
- NULL /* EAPI new connection */
-#endif /* EAPI */
};
#else
-#ifdef APXS2
void kerb_register_hooks(apr_pool_t *p)
{
- ap_hook_check_user_id(kerb_authenticate_user, NULL, NULL, APR_HOOK_MIDDLE);
- ap_hook_access_checker(kerb_check_user_access, NULL, NULL, APR_HOOK_MIDDLE);
+ ap_hook_check_user_id(kerb_authenticate_user, NULL, NULL, APR_HOOK_MIDDLE);
}
module AP_MODULE_DECLARE_DATA kerb_auth_module =
{
- STANDARD20_MODULE_STUFF,
- kerb_dir_config, /* create per-dir conf structures */
- NULL, /* merge per-dir conf structures */
- NULL, /* create per-server conf structures */
- NULL, /* merge per-server conf structures */
- kerb_auth_cmds, /* table of configuration directives */
- kerb_register_hooks /* register hooks */
+ STANDARD20_MODULE_STUFF,
+ kerb_dir_create_config, /* create per-dir conf structures */
+ NULL, /* merge per-dir conf structures */
+ NULL, /* create per-server conf structures */
+ NULL, /* merge per-server conf structures */
+ kerb_auth_cmds, /* table of configuration directives */
+ kerb_register_hooks /* register hooks */
};
-#endif /* APXS2 */
-#endif /* APXS1 */
+#endif
projects / mod_auth_kerb.cvs / .git / blobdiff