DEALINGS IN THE SOFTWARE.
*/
-#include <stdbool.h>
-#include <stdint.h>
-#include <gssapi/gssapi.h>
-#include <gssapi/gssapi_ext.h>
-
-#include <httpd.h>
-#include <http_core.h>
-#include <http_connection.h>
-#include <http_log.h>
-#include <http_request.h>
-#include <apr_strings.h>
-#include <apr_base64.h>
+#include "mod_auth_gssapi.h"
-module AP_MODULE_DECLARE_DATA auth_gssapi_module;
+const gss_OID_desc gss_mech_spnego = {
+ 6, "\x2b\x06\x01\x05\x05\x02"
+};
-APR_DECLARE_OPTIONAL_FN(int, ssl_is_https, (conn_rec *));
+const gss_OID_desc gss_mech_ntlmssp = {
+ GSS_NTLMSSP_OID_LENGTH, GSS_NTLMSSP_OID_STRING
+};
-struct mag_config {
- bool ssl_only;
- bool map_to_local;
- bool gss_conn_ctx;
- gss_key_value_set_desc cred_store;
+const gss_OID_set_desc gss_mech_set_ntlmssp = {
+ 1, discard_const(&gss_mech_ntlmssp)
};
+#define MOD_AUTH_GSSAPI_VERSION PACKAGE_NAME "/" PACKAGE_VERSION
+
+module AP_MODULE_DECLARE_DATA auth_gssapi_module;
+
+APLOG_USE_MODULE(auth_gssapi);
+
static char *mag_status(request_rec *req, int type, uint32_t err)
{
uint32_t maj_ret, min_ret;
static APR_OPTIONAL_FN_TYPE(ssl_is_https) *mag_is_https = NULL;
-static int mag_post_config(apr_pool_t *cfg, apr_pool_t *log,
+static int mag_post_config(apr_pool_t *cfgpool, apr_pool_t *log,
apr_pool_t *temp, server_rec *s)
{
/* FIXME: create mutex to deal with connections and contexts ? */
mag_is_https = APR_RETRIEVE_OPTIONAL_FN(ssl_is_https);
+ mag_post_config_session();
+ ap_add_version_component(cfgpool, MOD_AUTH_GSSAPI_VERSION);
return OK;
}
-
-struct mag_conn {
- gss_ctx_id_t ctx;
- bool established;
- char *user_name;
- char *gss_name;
-};
-
static int mag_pre_connection(conn_rec *c, void *csd)
{
struct mag_conn *mc;
- mc = apr_pcalloc(c->pool, sizeof(struct mag_conn));
- if (!mc) return DECLINED;
-
+ mc = mag_new_conn_ctx(c->pool);
ap_set_module_config(c->conn_config, &auth_gssapi_module, (void*)mc);
return OK;
}
+static apr_status_t mag_conn_destroy(void *ptr)
+{
+ struct mag_conn *mc = (struct mag_conn *)ptr;
+ uint32_t min;
+
+ if (mc->ctx) {
+ (void)gss_delete_sec_context(&min, &mc->ctx, GSS_C_NO_BUFFER);
+ }
+ return APR_SUCCESS;
+}
+
+struct mag_conn *mag_new_conn_ctx(apr_pool_t *pool)
+{
+ struct mag_conn *mc;
+
+ mc = apr_pcalloc(pool, sizeof(struct mag_conn));
+ apr_pool_create(&mc->pool, pool);
+ /* register the context in the memory pool, so it can be freed
+ * when the connection/request is terminated */
+ apr_pool_cleanup_register(mc->pool, (void *)mc,
+ mag_conn_destroy, apr_pool_cleanup_null);
+
+ return mc;
+}
+
+static void mag_conn_clear(struct mag_conn *mc)
+{
+ (void)mag_conn_destroy(mc);
+ apr_pool_t *temp;
+
+ apr_pool_clear(mc->pool);
+ temp = mc->pool;
+ memset(mc, 0, sizeof(struct mag_conn));
+ mc->pool = temp;
+}
+
static bool mag_conn_is_https(conn_rec *c)
{
if (mag_is_https) {
return false;
}
+static bool mag_acquire_creds(request_rec *req,
+ struct mag_config *cfg,
+ gss_OID_set desired_mechs,
+ gss_cred_usage_t cred_usage,
+ gss_cred_id_t *creds,
+ gss_OID_set *actual_mechs)
+{
+ uint32_t maj, min;
+#ifdef HAVE_CRED_STORE
+ gss_const_key_value_set_t store = cfg->cred_store;
+
+ maj = gss_acquire_cred_from(&min, GSS_C_NO_NAME, GSS_C_INDEFINITE,
+ desired_mechs, cred_usage, store, creds,
+ actual_mechs, NULL);
+#else
+ maj = gss_acquire_cred(&min, GSS_C_NO_NAME, GSS_C_INDEFINITE,
+ desired_mechs, cred_usage, creds,
+ actual_mechs, NULL);
+#endif
+
+ if (GSS_ERROR(maj)) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req, "%s",
+ mag_error(req, "gss_acquire_cred[_from]() "
+ "failed to get server creds",
+ maj, min));
+ return false;
+ }
+
+ return true;
+}
+
+#ifdef HAVE_CRED_STORE
+static char *escape(apr_pool_t *pool, const char *name,
+ char find, const char *replace)
+{
+ char *escaped = NULL;
+ char *namecopy;
+ char *n;
+ char *p;
+
+ namecopy = apr_pstrdup(pool, name);
+
+ p = strchr(namecopy, find);
+ if (!p) return namecopy;
+
+ /* first segment */
+ n = namecopy;
+ while (p) {
+ /* terminate previous segment */
+ *p = '\0';
+ if (escaped) {
+ escaped = apr_pstrcat(pool, escaped, n, replace, NULL);
+ } else {
+ escaped = apr_pstrcat(pool, n, replace, NULL);
+ }
+ /* move to next segment */
+ n = p + 1;
+ p = strchr(n, find);
+ }
+ /* append last segment if any */
+ if (*n) {
+ escaped = apr_pstrcat(pool, escaped, n, NULL);
+ }
+
+ return escaped;
+}
+
+static char *mag_gss_name_to_ccache_name(request_rec *req,
+ char *dir, const char *gss_name)
+{
+ char *escaped;
+
+ /* We need to escape away '/', we can't have path separators in
+ * a ccache file name */
+ /* first double escape the esacping char (~) if any */
+ escaped = escape(req->pool, gss_name, '~', "~~");
+ /* then escape away the separator (/) if any */
+ escaped = escape(req->pool, escaped, '/', "~");
+
+ return apr_psprintf(req->pool, "%s/%s", dir, escaped);
+}
+
+static void mag_set_KRB5CCANME(request_rec *req, char *ccname)
+{
+ apr_status_t status;
+ apr_finfo_t finfo;
+ char *value;
+
+ status = apr_stat(&finfo, ccname, APR_FINFO_MIN, req->pool);
+ if (status != APR_SUCCESS && status != APR_INCOMPLETE) {
+ /* set the file cache anyway, but warn */
+ ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
+ "KRB5CCNAME file (%s) lookup failed!", ccname);
+ }
+
+ value = apr_psprintf(req->pool, "FILE:%s", ccname);
+ apr_table_set(req->subprocess_env, "KRB5CCNAME", value);
+}
+
+static void mag_store_deleg_creds(request_rec *req,
+ char *dir, char *clientname,
+ gss_cred_id_t delegated_cred,
+ char **ccachefile)
+{
+ gss_key_value_element_desc element;
+ gss_key_value_set_desc store;
+ char *ccname;
+ uint32_t maj, min;
+ element.key = "ccache";
+ store.elements = &element;
+ store.count = 1;
+
+ ccname = mag_gss_name_to_ccache_name(req, dir, clientname);
+ element.value = apr_psprintf(req->pool, "FILE:%s", ccname);
+
+ maj = gss_store_cred_into(&min, delegated_cred, GSS_C_INITIATE,
+ GSS_C_NULL_OID, 1, 1, &store, NULL, NULL);
+ if (GSS_ERROR(maj)) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req, "%s",
+ mag_error(req, "failed to store delegated creds",
+ maj, min));
+ }
+
+ *ccachefile = ccname;
+}
+#endif
+
+static bool parse_auth_header(apr_pool_t *pool, const char **auth_header,
+ gss_buffer_t value)
+{
+ char *auth_header_value;
+
+ auth_header_value = ap_getword_white(pool, auth_header);
+ if (!auth_header_value) return false;
+ value->length = apr_base64_decode_len(auth_header_value) + 1;
+ value->value = apr_pcalloc(pool, value->length);
+ if (!value->value) return false;
+ value->length = apr_base64_decode(value->value, auth_header_value);
+
+ return true;
+}
+
+static bool is_mech_allowed(gss_OID_set allowed_mechs, gss_const_OID mech,
+ bool multi_step_supported)
+{
+ if (!multi_step_supported && gss_oid_equal(&gss_mech_ntlmssp, mech))
+ return false;
+
+ if (allowed_mechs == GSS_C_NO_OID_SET) return true;
+
+ for (int i = 0; i < allowed_mechs->count; i++) {
+ if (gss_oid_equal(&allowed_mechs->elements[i], mech)) {
+ return true;
+ }
+ }
+ return false;
+}
+
+#define AUTH_TYPE_NEGOTIATE 0
+#define AUTH_TYPE_BASIC 1
+#define AUTH_TYPE_RAW_NTLM 2
+const char *auth_types[] = {
+ "Negotiate",
+ "Basic",
+ "NTLM",
+ NULL
+};
+
+static void mag_set_req_data(request_rec *req,
+ struct mag_config *cfg,
+ struct mag_conn *mc)
+{
+ apr_table_set(req->subprocess_env, "GSS_NAME", mc->gss_name);
+ apr_table_set(req->subprocess_env, "GSS_SESSION_EXPIRATION",
+ apr_psprintf(req->pool,
+ "%ld", (long)mc->expiration));
+ req->ap_auth_type = apr_pstrdup(req->pool,
+ auth_types[mc->auth_type]);
+ req->user = apr_pstrdup(req->pool, mc->user_name);
+ if (cfg->deleg_ccache_dir && mc->delegated) {
+ char *ccname;
+ ccname = mag_gss_name_to_ccache_name(req,
+ cfg->deleg_ccache_dir,
+ mc->gss_name);
+ if (ccname) {
+ mag_set_KRB5CCANME(req, ccname);
+ }
+ }
+}
+
+gss_OID_set mag_filter_unwanted_mechs(gss_OID_set src)
+{
+ gss_const_OID unwanted_mechs[] = {
+ &gss_mech_spnego,
+ gss_mech_krb5_old,
+ gss_mech_krb5_wrong,
+ gss_mech_iakerb,
+ GSS_C_NO_OID
+ };
+ gss_OID_set dst;
+ uint32_t maj, min;
+ int present = 0;
+
+ if (src == GSS_C_NO_OID_SET) return GSS_C_NO_OID_SET;
+
+ for (int i = 0; unwanted_mechs[i] != GSS_C_NO_OID; i++) {
+ maj = gss_test_oid_set_member(&min,
+ discard_const(unwanted_mechs[i]),
+ src, &present);
+ if (present) break;
+ }
+ if (present) {
+ maj = gss_create_empty_oid_set(&min, &dst);
+ if (maj != GSS_S_COMPLETE) {
+ return GSS_C_NO_OID_SET;
+ }
+ for (int i = 0; i < src->count; i++) {
+ present = 0;
+ for (int j = 0; unwanted_mechs[j] != GSS_C_NO_OID; j++) {
+ if (gss_oid_equal(&src->elements[i], unwanted_mechs[j])) {
+ present = 1;
+ break;
+ }
+ }
+ if (present) continue;
+ maj = gss_add_oid_set_member(&min, &src->elements[i], &dst);
+ if (maj != GSS_S_COMPLETE) {
+ gss_release_oid_set(&min, &dst);
+ return GSS_C_NO_OID_SET;
+ }
+ }
+ return dst;
+ }
+ return src;
+}
+
+static bool mag_auth_basic(request_rec *req,
+ struct mag_config *cfg,
+ gss_buffer_desc ba_user,
+ gss_buffer_desc ba_pwd,
+ gss_cred_usage_t cred_usage,
+ gss_name_t *client,
+ gss_OID *mech_type,
+ gss_cred_id_t *delegated_cred,
+ uint32_t *vtime)
+{
+#ifdef HAVE_GSS_KRB5_CCACHE_NAME
+ const char *user_ccache = NULL;
+ const char *orig_ccache = NULL;
+ long long unsigned int rndname;
+ apr_status_t rs;
+#endif
+ gss_name_t user = GSS_C_NO_NAME;
+ gss_cred_id_t user_cred = GSS_C_NO_CREDENTIAL;
+ gss_ctx_id_t user_ctx = GSS_C_NO_CONTEXT;
+ gss_name_t server = GSS_C_NO_NAME;
+ gss_cred_id_t server_cred = GSS_C_NO_CREDENTIAL;
+ gss_ctx_id_t server_ctx = GSS_C_NO_CONTEXT;
+ gss_cred_id_t acquired_cred = GSS_C_NO_CREDENTIAL;
+ gss_buffer_desc input = GSS_C_EMPTY_BUFFER;
+ gss_buffer_desc output = GSS_C_EMPTY_BUFFER;
+ gss_OID_set allowed_mechs;
+ gss_OID_set filtered_mechs;
+ gss_OID_set actual_mechs = GSS_C_NO_OID_SET;
+ uint32_t init_flags = 0;
+ uint32_t maj, min;
+ int present = 0;
+ bool ret = false;
+
+ maj = gss_import_name(&min, &ba_user, GSS_C_NT_USER_NAME, &user);
+ if (GSS_ERROR(maj)) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req,
+ "In Basic Auth, %s",
+ mag_error(req, "gss_import_name() failed",
+ maj, min));
+ goto done;
+ }
+
+ if (cfg->basic_mechs) {
+ allowed_mechs = cfg->basic_mechs;
+ } else if (cfg->allowed_mechs) {
+ allowed_mechs = cfg->allowed_mechs;
+ } else {
+ struct mag_server_config *scfg;
+ /* Try to fetch the default set if not explicitly configured,
+ * We need to do this because gss_acquire_cred_with_password()
+ * is currently limited to acquire creds for a single "default"
+ * mechanism if no desired mechanisms are passed in. This causes
+ * authentication to fail for secondary mechanisms as no user
+ * credentials are generated for those. */
+ scfg = ap_get_module_config(req->server->module_config,
+ &auth_gssapi_module);
+ /* In the worst case scenario default_mechs equals to GSS_C_NO_OID_SET.
+ * This generally causes only the krb5 mechanism to be tried due
+ * to implementation constraints, but may change in future. */
+ allowed_mechs = scfg->default_mechs;
+ }
+
+ /* Remove Spnego if present, or we'd repeat failed authentiations
+ * multiple times, one within Spnego and then again with an explicit
+ * mechanism. We would normally just force Spnego and use
+ * gss_set_neg_mechs, but due to the way we source the server name
+ * and the fact MIT up to 1.14 at least does no handle union names,
+ * we can't provide spnego with a server name that can be used by
+ * multiple mechanisms, causing any but the first mechanism to fail.
+ * Also remove unwanted krb mechs, or AS requests will be repeated
+ * multiple times uselessly.
+ */
+ filtered_mechs = mag_filter_unwanted_mechs(allowed_mechs);
+ if (filtered_mechs == allowed_mechs) {
+ /* in case filtered_mechs was not allocated here don't free it */
+ filtered_mechs = GSS_C_NO_OID_SET;
+ } else if (filtered_mechs == GSS_C_NO_OID_SET) {
+ ap_log_rerror(APLOG_MARK, APLOG_WARNING, 0, req, "Fatal "
+ "failure while filtering mechs, aborting");
+ goto done;
+ } else {
+ /* use the filtered list */
+ allowed_mechs = filtered_mechs;
+ }
+
+#ifdef HAVE_GSS_KRB5_CCACHE_NAME
+ /* If we are using the krb5 mechanism make sure to set a per thread
+ * memory ccache so that there can't be interferences between threads.
+ * Also make sure we have new cache so no cached results end up being
+ * used. Some implementations of gss_acquire_cred_with_password() do
+ * not reacquire creds if cached ones are around, failing to check
+ * again for the password. */
+ maj = gss_test_oid_set_member(&min, discard_const(gss_mech_krb5),
+ allowed_mechs, &present);
+ if (GSS_ERROR(maj)) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req,
+ "In Basic Auth, %s",
+ mag_error(req, "gss_test_oid_set_member() failed",
+ maj, min));
+ goto done;
+ }
+ if (present) {
+ rs = apr_generate_random_bytes((unsigned char *)(&rndname),
+ sizeof(long long unsigned int));
+ if (rs != APR_SUCCESS) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req,
+ "Failed to generate random ccache name");
+ goto done;
+ }
+ user_ccache = apr_psprintf(req->pool, "MEMORY:user_%qu", rndname);
+ maj = gss_krb5_ccache_name(&min, user_ccache, &orig_ccache);
+ if (GSS_ERROR(maj)) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req,
+ "In Basic Auth, %s",
+ mag_error(req, "gss_krb5_ccache_name() "
+ "failed", maj, min));
+ goto done;
+ }
+ }
+#endif
+
+ maj = gss_acquire_cred_with_password(&min, user, &ba_pwd,
+ GSS_C_INDEFINITE,
+ allowed_mechs,
+ GSS_C_INITIATE,
+ &user_cred, &actual_mechs, NULL);
+ if (GSS_ERROR(maj)) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req,
+ "In Basic Auth, %s",
+ mag_error(req, "gss_acquire_cred_with_password() "
+ "failed", maj, min));
+ goto done;
+ }
+
+ /* must acquire creds based on the actual mechs we want to try */
+ if (!mag_acquire_creds(req, cfg, actual_mechs,
+ cred_usage, &acquired_cred, NULL)) {
+ goto done;
+ }
+
+ if (cred_usage == GSS_C_BOTH) {
+ /* must acquire with GSS_C_ACCEPT to get the server name */
+ if (!mag_acquire_creds(req, cfg, actual_mechs,
+ GSS_C_ACCEPT, &server_cred, NULL)) {
+ goto done;
+ }
+ } else {
+ server_cred = acquired_cred;
+ }
+
+#ifdef HAVE_CRED_STORE
+ if (cfg->deleg_ccache_dir) {
+ /* delegate ourselves credentials so we store them as requested */
+ init_flags |= GSS_C_DELEG_FLAG;
+ }
+#endif
+
+ for (int i = 0; i < actual_mechs->count; i++) {
+
+ /* free these if looping */
+ gss_release_buffer(&min, &output);
+ gss_release_buffer(&min, &input);
+ gss_release_name(&min, &server);
+
+ maj = gss_inquire_cred_by_mech(&min, server_cred,
+ &actual_mechs->elements[i],
+ &server, NULL, NULL, NULL);
+ if (GSS_ERROR(maj)) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req,
+ "%s", mag_error(req, "gss_inquired_cred_by_mech() "
+ "failed", maj, min));
+ continue;
+ }
+
+ do {
+ /* output and input are inverted here, this is intentional */
+ maj = gss_init_sec_context(&min, user_cred, &user_ctx, server,
+ &actual_mechs->elements[i], init_flags,
+ 300, GSS_C_NO_CHANNEL_BINDINGS, &output,
+ NULL, &input, NULL, NULL);
+ if (GSS_ERROR(maj)) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req,
+ "%s", mag_error(req, "gss_init_sec_context() "
+ "failed", maj, min));
+ break;
+ }
+ gss_release_buffer(&min, &output);
+ maj = gss_accept_sec_context(&min, &server_ctx, acquired_cred,
+ &input, GSS_C_NO_CHANNEL_BINDINGS,
+ client, mech_type, &output, NULL,
+ vtime, delegated_cred);
+ if (GSS_ERROR(maj)) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req,
+ "%s", mag_error(req, "gss_accept_sec_context()"
+ " failed", maj, min));
+ break;
+ }
+ gss_release_buffer(&min, &input);
+ } while (maj == GSS_S_CONTINUE_NEEDED);
+
+ if (maj == GSS_S_COMPLETE) {
+ ret = true;
+ break;
+ }
+ }
+
+done:
+ gss_release_buffer(&min, &output);
+ gss_release_buffer(&min, &input);
+ gss_release_name(&min, &server);
+ if (server_cred != acquired_cred)
+ gss_release_cred(&min, &server_cred);
+ gss_delete_sec_context(&min, &server_ctx, GSS_C_NO_BUFFER);
+ gss_release_cred(&min, &acquired_cred);
+ gss_release_name(&min, &user);
+ gss_release_cred(&min, &user_cred);
+ gss_delete_sec_context(&min, &user_ctx, GSS_C_NO_BUFFER);
+ gss_release_oid_set(&min, &actual_mechs);
+ gss_release_oid_set(&min, &filtered_mechs);
+#ifdef HAVE_GSS_KRB5_CCACHE_NAME
+ if (user_ccache != NULL) {
+ maj = gss_krb5_ccache_name(&min, orig_ccache, NULL);
+ if (maj != GSS_S_COMPLETE) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req,
+ "Failed to restore per-thread ccache, %s",
+ mag_error(req, "gss_krb5_ccache_name() "
+ "failed", maj, min));
+ }
+ }
+#endif
+ return ret;
+}
+
+struct mag_req_cfg *mag_init_cfg(request_rec *req)
+{
+ struct mag_server_config *scfg;
+ struct mag_req_cfg *req_cfg = apr_pcalloc(req->pool,
+ sizeof(struct mag_req_cfg));
+ req_cfg->req = req;
+ req_cfg->cfg = ap_get_module_config(req->per_dir_config,
+ &auth_gssapi_module);
+
+ scfg = ap_get_module_config(req->server->module_config,
+ &auth_gssapi_module);
+
+ if (req_cfg->cfg->allowed_mechs) {
+ req_cfg->desired_mechs = req_cfg->cfg->allowed_mechs;
+ } else {
+ /* Use the default set if not explicitly configured */
+ req_cfg->desired_mechs = scfg->default_mechs;
+ }
+
+ if (!req_cfg->cfg->mag_skey) {
+ req_cfg->mag_skey = req_cfg->cfg->mag_skey;
+ } else {
+ /* Use server random key if not explicitly configured */
+ req_cfg->mag_skey = scfg->mag_skey;
+ }
+
+ if (req->proxyreq == PROXYREQ_PROXY) {
+ req_cfg->req_proto = "Proxy-Authorization";
+ req_cfg->rep_proto = "Proxy-Authenticate";
+ } else {
+ req_cfg->req_proto = "Authorization";
+ req_cfg->rep_proto = "WWW-Authenticate";
+ req_cfg->use_sessions = req_cfg->cfg->use_sessions;
+ req_cfg->send_persist = req_cfg->cfg->send_persist;
+ }
+
+ return req_cfg;
+}
+
+static bool use_s4u2proxy(struct mag_req_cfg *req_cfg) {
+ if (req_cfg->cfg->use_s4u2proxy) {
+ if (req_cfg->cfg->deleg_ccache_dir != NULL) {
+ return true;
+ } else {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req_cfg->req,
+ "S4U2 Proxy requested but GssapiDelegCcacheDir "
+ "is not set. Constrained delegation disabled!");
+ }
+ }
+ return false;
+}
+
static int mag_auth(request_rec *req)
{
const char *type;
+ int auth_type = -1;
+ struct mag_req_cfg *req_cfg;
struct mag_config *cfg;
const char *auth_header;
char *auth_header_type;
- char *auth_header_value;
int ret = HTTP_UNAUTHORIZED;
gss_ctx_id_t ctx = GSS_C_NO_CONTEXT;
gss_ctx_id_t *pctx;
gss_buffer_desc input = GSS_C_EMPTY_BUFFER;
gss_buffer_desc output = GSS_C_EMPTY_BUFFER;
gss_buffer_desc name = GSS_C_EMPTY_BUFFER;
+ gss_buffer_desc ba_user;
+ gss_buffer_desc ba_pwd;
gss_name_t client = GSS_C_NO_NAME;
+ gss_cred_id_t acquired_cred = GSS_C_NO_CREDENTIAL;
gss_cred_id_t delegated_cred = GSS_C_NO_CREDENTIAL;
- uint32_t flags;
+ gss_cred_usage_t cred_usage = GSS_C_ACCEPT;
+ uint32_t vtime;
uint32_t maj, min;
char *reply;
size_t replen;
char *clientname;
gss_OID mech_type = GSS_C_NO_OID;
+ gss_OID_set desired_mechs = GSS_C_NO_OID_SET;
gss_buffer_desc lname = GSS_C_EMPTY_BUFFER;
struct mag_conn *mc = NULL;
+ time_t expiration;
+ int i;
type = ap_auth_type(req);
if ((type == NULL) || (strcasecmp(type, "GSSAPI") != 0)) {
return DECLINED;
}
- cfg = ap_get_module_config(req->per_dir_config, &auth_gssapi_module);
+ req_cfg = mag_init_cfg(req);
+
+ cfg = req_cfg->cfg;
+
+ desired_mechs = req_cfg->desired_mechs;
+
+ /* implicit auth for subrequests if main auth already happened */
+ if (!ap_is_initial_req(req) && req->main != NULL) {
+ type = ap_auth_type(req->main);
+ if ((type != NULL) && (strcasecmp(type, "GSSAPI") == 0)) {
+ /* warn if the subrequest location and the main request
+ * location have different configs */
+ if (cfg != ap_get_module_config(req->main->per_dir_config,
+ &auth_gssapi_module)) {
+ ap_log_rerror(APLOG_MARK, APLOG_WARNING, 0,
+ req, "Subrequest authentication bypass on "
+ "location with different configuration!");
+ }
+ if (req->main->user) {
+ req->user = apr_pstrdup(req->pool, req->main->user);
+ return OK;
+ } else {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req,
+ "The main request is tasked to establish the "
+ "security context, can't proceed!");
+ return HTTP_UNAUTHORIZED;
+ }
+ } else {
+ ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, req,
+ "Subrequest GSSAPI auth with no auth on the main "
+ "request. This operation may fail if other "
+ "subrequests already established a context or the "
+ "mechanism requires multiple roundtrips.");
+ }
+ }
if (cfg->ssl_only) {
if (!mag_conn_is_https(req->connection)) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req,
"Not a TLS connection, refusing to authenticate!");
goto done;
}
req->connection->conn_config,
&auth_gssapi_module);
if (!mc) {
- return DECLINED;
- }
- if (mc->established) {
- ap_log_rerror(APLOG_MARK, APLOG_DEBUG|APLOG_NOERRNO, 0, req,
- "Connection bound pre-authentication found.");
- apr_table_set(req->subprocess_env, "GSS_NAME", mc->gss_name);
- req->ap_auth_type = apr_pstrdup(req->pool, "Negotiate");
- req->user = apr_pstrdup(req->pool, mc->user_name);
+ ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, req,
+ "Failed to retrieve connection context!");
+ goto done;
+ }
+ }
+
+ /* if available, session always supersedes connection bound data */
+ if (req_cfg->use_sessions) {
+ mag_check_session(req_cfg, &mc);
+ }
+
+ auth_header = apr_table_get(req->headers_in, req_cfg->req_proto);
+
+ if (mc) {
+ if (mc->established &&
+ (auth_header == NULL) &&
+ (mc->auth_type != AUTH_TYPE_BASIC)) {
+ ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, req,
+ "Already established context found!");
+ mag_set_req_data(req, cfg, mc);
ret = OK;
goto done;
}
pctx = &ctx;
}
- auth_header = apr_table_get(req->headers_in, "Authorization");
+ /* We can proceed only if we do have an auth header */
if (!auth_header) goto done;
auth_header_type = ap_getword_white(req->pool, &auth_header);
if (!auth_header_type) goto done;
- if (strcasecmp(auth_header_type, "Negotiate") != 0) goto done;
+ for (i = 0; auth_types[i] != NULL; i++) {
+ if (strcasecmp(auth_header_type, auth_types[i]) == 0) {
+ auth_type = i;
+ break;
+ }
+ }
+
+ switch (auth_type) {
+ case AUTH_TYPE_NEGOTIATE:
+ if (!parse_auth_header(req->pool, &auth_header, &input)) {
+ goto done;
+ }
+ break;
+ case AUTH_TYPE_BASIC:
+ if (!cfg->use_basic_auth) {
+ goto done;
+ }
+
+ ba_pwd.value = ap_pbase64decode(req->pool, auth_header);
+ if (!ba_pwd.value) goto done;
+ ba_user.value = ap_getword_nulls_nc(req->pool,
+ (char **)&ba_pwd.value, ':');
+ if (!ba_user.value) goto done;
+ if (((char *)ba_user.value)[0] == '\0' ||
+ ((char *)ba_pwd.value)[0] == '\0') {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req,
+ "Invalid empty user or password for Basic Auth");
+ goto done;
+ }
+ ba_user.length = strlen(ba_user.value);
+ ba_pwd.length = strlen(ba_pwd.value);
+
+ if (mc && mc->established &&
+ mag_basic_check(req_cfg, mc, ba_user, ba_pwd)) {
+ ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, req,
+ "Already established BASIC AUTH context found!");
+ mag_set_req_data(req, cfg, mc);
+ ret = OK;
+ goto done;
+ }
+
+ break;
+
+ case AUTH_TYPE_RAW_NTLM:
+ if (!is_mech_allowed(desired_mechs, &gss_mech_ntlmssp,
+ cfg->gss_conn_ctx)) {
+ ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, req,
+ "NTLM Authentication is not allowed!");
+ goto done;
+ }
+
+ if (!parse_auth_header(req->pool, &auth_header, &input)) {
+ goto done;
+ }
+
+ desired_mechs = discard_const(&gss_mech_set_ntlmssp);
+ break;
+
+ default:
+ goto done;
+ }
+
+ if (mc && mc->established) {
+ /* if we are re-authenticating make sure the conn context
+ * is cleaned up so we do not accidentally reuse an existing
+ * established context */
+ mag_conn_clear(mc);
+ }
+
+ req->ap_auth_type = apr_pstrdup(req->pool, auth_types[auth_type]);
+
+#ifdef HAVE_CRED_STORE
+ if (use_s4u2proxy(req_cfg)) {
+ cred_usage = GSS_C_BOTH;
+ }
+#endif
+
+ if (auth_type == AUTH_TYPE_BASIC) {
+ if (mag_auth_basic(req, cfg, ba_user, ba_pwd,
+ cred_usage, &client, &mech_type,
+ &delegated_cred, &vtime)) {
+ goto complete;
+ }
+ goto done;
+ }
+
+ if (!mag_acquire_creds(req, cfg, desired_mechs,
+ cred_usage, &acquired_cred, NULL)) {
+ goto done;
+ }
- auth_header_value = ap_getword_white(req->pool, &auth_header);
- if (!auth_header_value) goto done;
- input.length = apr_base64_decode_len(auth_header_value) + 1;
- input.value = apr_pcalloc(req->pool, input.length);
- if (!input.value) goto done;
- input.length = apr_base64_decode(input.value, auth_header_value);
+ if (auth_type == AUTH_TYPE_NEGOTIATE &&
+ cfg->allowed_mechs != GSS_C_NO_OID_SET) {
+ maj = gss_set_neg_mechs(&min, acquired_cred, cfg->allowed_mechs);
+ if (GSS_ERROR(maj)) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req, "%s",
+ mag_error(req, "gss_set_neg_mechs() failed",
+ maj, min));
+ goto done;
+ }
+ }
- maj = gss_accept_sec_context(&min, pctx, GSS_C_NO_CREDENTIAL,
+ maj = gss_accept_sec_context(&min, pctx, acquired_cred,
&input, GSS_C_NO_CHANNEL_BINDINGS,
- &client, &mech_type, &output, &flags, NULL,
+ &client, &mech_type, &output, NULL, &vtime,
&delegated_cred);
if (GSS_ERROR(maj)) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req, "%s",
mag_error(req, "gss_accept_sec_context() failed",
maj, min));
goto done;
- }
-
- if (maj == GSS_S_CONTINUE_NEEDED) {
- if (!cfg->gss_conn_ctx) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
- "Mechanism needs continuation but "
- "GSSConnectionContext is off.");
- gss_delete_sec_context(&min, pctx, GSS_C_NO_BUFFER);
+ } else if (maj == GSS_S_CONTINUE_NEEDED) {
+ if (!mc) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req,
+ "Mechanism needs continuation but neither "
+ "GssapiConnectionBound nor "
+ "GssapiUseSessions are available");
gss_release_buffer(&min, &output);
output.length = 0;
}
+ /* auth not complete send token and wait next packet */
goto done;
}
- /* once the connection has been accepted we do not need the context
- * anymore, discard it. FIXME: we also need a destructor for those
- * mechanisms (like NTLMSSP) that do not complete in one step */
- gss_delete_sec_context(&min, pctx, GSS_C_NO_BUFFER);
-
-#ifdef HAVE_GSS_STORE_CRED_INTO
- if (cfg->cred_store && delegated_cred != GSS_C_NO_CREDENTIAL) {
- gss_key_value_set_desc store = {0, NULL};
- /* FIXME: run substtutions */
-
- maj = gss_store_cred_into(&min, delegated_cred, GSS_C_INITIATE,
- GSS_C_NULL_OID, 1, 1, &store, NULL, NULL);
- }
-#endif
-
- req->ap_auth_type = apr_pstrdup(req->pool, "Negotiate");
-
+complete:
/* Always set the GSS name in an env var */
maj = gss_display_name(&min, client, &name, NULL);
if (GSS_ERROR(maj)) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
- mag_error(req, "gss_accept_sec_context() failed",
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req, "%s",
+ mag_error(req, "gss_display_name() failed",
maj, min));
goto done;
}
clientname = apr_pstrndup(req->pool, name.value, name.length);
apr_table_set(req->subprocess_env, "GSS_NAME", clientname);
+ expiration = time(NULL) + vtime;
+ apr_table_set(req->subprocess_env, "GSS_SESSION_EXPIRATION",
+ apr_psprintf(req->pool, "%ld", (long)expiration));
+
+#ifdef HAVE_CRED_STORE
+ if (cfg->deleg_ccache_dir && delegated_cred != GSS_C_NO_CREDENTIAL) {
+ char *ccachefile = NULL;
+
+ mag_store_deleg_creds(req, cfg->deleg_ccache_dir, clientname,
+ delegated_cred, &ccachefile);
+
+ if (ccachefile) {
+ mag_set_KRB5CCANME(req, ccachefile);
+ }
+
+ if (mc) {
+ mc->delegated = true;
+ }
+ }
+#endif
if (cfg->map_to_local) {
maj = gss_localname(&min, client, mech_type, &lname);
if (maj != GSS_S_COMPLETE) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, req,
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, req, "%s",
mag_error(req, "gss_localname() failed", maj, min));
goto done;
}
}
if (mc) {
- mc->user_name = apr_pstrdup(req->connection->pool, req->user);
- mc->gss_name = apr_pstrdup(req->connection->pool, clientname);
+ mc->user_name = apr_pstrdup(mc->pool, req->user);
+ mc->gss_name = apr_pstrdup(mc->pool, clientname);
mc->established = true;
+ if (vtime == GSS_C_INDEFINITE || vtime < MIN_SESS_EXP_TIME) {
+ vtime = MIN_SESS_EXP_TIME;
+ }
+ mc->expiration = expiration;
+ mc->auth_type = auth_type;
+ if (auth_type == AUTH_TYPE_BASIC) {
+ mag_basic_cache(req_cfg, mc, ba_user, ba_pwd);
+ }
+ if (req_cfg->use_sessions) {
+ mag_attempt_session(req_cfg, mc);
+ }
}
+ if (req_cfg->send_persist)
+ apr_table_set(req->headers_out, "Persistent-Auth",
+ cfg->gss_conn_ctx ? "true" : "false");
+
ret = OK;
done:
- if (ret == HTTP_UNAUTHORIZED) {
- if (output.length != 0) {
- replen = apr_base64_encode_len(output.length) + 1;
- reply = apr_pcalloc(req->pool, 10 + replen);
- if (reply) {
- memcpy(reply, "Negotiate ", 10);
- apr_base64_encode(&reply[10], output.value, output.length);
- apr_table_add(req->err_headers_out,
- "WWW-Authenticate", reply);
- }
- } else {
- apr_table_add(req->err_headers_out,
- "WWW-Authenticate", "Negotiate");
+
+ if ((auth_type != AUTH_TYPE_BASIC) && (output.length != 0)) {
+ int prefixlen = strlen(auth_types[auth_type]) + 1;
+ replen = apr_base64_encode_len(output.length) + 1;
+ reply = apr_pcalloc(req->pool, prefixlen + replen);
+ if (reply) {
+ memcpy(reply, auth_types[auth_type], prefixlen - 1);
+ reply[prefixlen - 1] = ' ';
+ apr_base64_encode(&reply[prefixlen], output.value, output.length);
+ apr_table_add(req->err_headers_out, req_cfg->rep_proto, reply);
+ }
+ } else if (ret == HTTP_UNAUTHORIZED) {
+ apr_table_add(req->err_headers_out, req_cfg->rep_proto, "Negotiate");
+
+ if (is_mech_allowed(desired_mechs, &gss_mech_ntlmssp,
+ cfg->gss_conn_ctx)) {
+ apr_table_add(req->err_headers_out, req_cfg->rep_proto, "NTLM");
+ }
+ if (cfg->use_basic_auth) {
+ apr_table_add(req->err_headers_out, req_cfg->rep_proto,
+ apr_psprintf(req->pool, "Basic realm=\"%s\"",
+ ap_auth_name(req)));
}
}
+
+ if (ctx != GSS_C_NO_CONTEXT)
+ gss_delete_sec_context(&min, &ctx, GSS_C_NO_BUFFER);
+ gss_release_cred(&min, &acquired_cred);
gss_release_cred(&min, &delegated_cred);
gss_release_buffer(&min, &output);
gss_release_name(&min, &client);
struct mag_config *cfg;
cfg = (struct mag_config *)apr_pcalloc(p, sizeof(struct mag_config));
- if (!cfg) return NULL;
+ cfg->pool = p;
return cfg;
}
return NULL;
}
+static const char *mag_send_persist(cmd_parms *parms, void *mconfig, int on)
+{
+ struct mag_config *cfg = (struct mag_config *)mconfig;
+ cfg->send_persist = on ? true : false;
+ return NULL;
+}
+
+static const char *mag_use_sess(cmd_parms *parms, void *mconfig, int on)
+{
+ struct mag_config *cfg = (struct mag_config *)mconfig;
+ cfg->use_sessions = on ? true : false;
+ return NULL;
+}
+
+#ifdef HAVE_CRED_STORE
+static const char *mag_use_s4u2p(cmd_parms *parms, void *mconfig, int on)
+{
+ struct mag_config *cfg = (struct mag_config *)mconfig;
+ cfg->use_s4u2proxy = on ? true : false;
+
+ return NULL;
+}
+#endif
+
+static const char *mag_sess_key(cmd_parms *parms, void *mconfig, const char *w)
+{
+ struct mag_config *cfg = (struct mag_config *)mconfig;
+ struct databuf keys;
+ unsigned char *val;
+ apr_status_t rc;
+ const char *k;
+ int l;
+
+ if (strncmp(w, "key:", 4) != 0) {
+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, parms->server,
+ "Invalid key format, expected prefix 'key:'");
+ return NULL;
+ }
+ k = w + 4;
+
+ l = apr_base64_decode_len(k);
+ val = apr_palloc(parms->temp_pool, l);
+
+ keys.length = (int)apr_base64_decode_binary(val, k);
+ keys.value = (unsigned char *)val;
+
+ if (keys.length != 32) {
+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, parms->server,
+ "Invalid key length, expected 32 got %d", keys.length);
+ return NULL;
+ }
+
+ rc = SEAL_KEY_CREATE(cfg->pool, &cfg->mag_skey, &keys);
+ if (rc != OK) {
+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, parms->server,
+ "Failed to import sealing key!");
+ }
+ return NULL;
+}
+
+#ifdef HAVE_CRED_STORE
+
+#define MAX_CRED_OPTIONS 10
+
static const char *mag_cred_store(cmd_parms *parms, void *mconfig,
const char *w)
{
p = strchr(w, ':');
if (!p) {
- ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, parms->server,
- "%s [%s]", "Invalid syntax for GSSCredStore option", w);
+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, parms->server,
+ "%s [%s]", "Invalid syntax for GssapiCredStore option", w);
return NULL;
}
key = apr_pstrndup(parms->pool, w, (p-w));
value = apr_pstrdup(parms->pool, p + 1);
- if (!key || !value) {
- ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, parms->server,
- "%s", "OOM handling GSSCredStore option");
- return NULL;
+
+ if (!cfg->cred_store) {
+ cfg->cred_store = apr_pcalloc(parms->pool,
+ sizeof(gss_key_value_set_desc));
+ size = sizeof(gss_key_value_element_desc) * MAX_CRED_OPTIONS;
+ cfg->cred_store->elements = apr_palloc(parms->pool, size);
}
- size = sizeof(gss_key_value_element_desc) * cfg->cred_store.count + 1;
- elements = apr_palloc(parms->pool, size);
- if (!elements) {
- ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, parms->server,
- "%s", "OOM handling GSSCredStore option");
+ elements = cfg->cred_store->elements;
+ count = cfg->cred_store->count;
+
+ if (count >= MAX_CRED_OPTIONS) {
+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, parms->server,
+ "Too many GssapiCredStore options (MAX: %d)",
+ MAX_CRED_OPTIONS);
return NULL;
}
+ cfg->cred_store->count++;
- for (count = 0; count < cfg->cred_store.count; count++) {
- elements[count] = cfg->cred_store.elements[count];
- }
elements[count].key = key;
elements[count].value = value;
- cfg->cred_store.elements = elements;
- cfg->cred_store.count = count;
+ return NULL;
+}
+
+static const char *mag_deleg_ccache_dir(cmd_parms *parms, void *mconfig,
+ const char *value)
+{
+ struct mag_config *cfg = (struct mag_config *)mconfig;
+
+ cfg->deleg_ccache_dir = apr_pstrdup(parms->pool, value);
+
+ return NULL;
+}
+#endif
+
+#ifdef HAVE_GSS_ACQUIRE_CRED_WITH_PASSWORD
+static const char *mag_use_basic_auth(cmd_parms *parms, void *mconfig, int on)
+{
+ struct mag_config *cfg = (struct mag_config *)mconfig;
+
+ cfg->use_basic_auth = on ? true : false;
+ return NULL;
+}
+#endif
+
+static apr_status_t mag_oid_set_destroy(void *ptr)
+{
+ uint32_t min;
+ gss_OID_set set = (gss_OID_set)ptr;
+ (void)gss_release_oid_set(&min, &set);
+ return APR_SUCCESS;
+}
+
+static bool mag_list_of_mechs(cmd_parms *parms, gss_OID_set *oidset,
+ bool add_spnego, const char *w)
+{
+ gss_buffer_desc buf = { 0 };
+ uint32_t maj, min;
+ gss_OID_set set;
+ gss_OID oid;
+ bool release_oid = false;
+
+ if (NULL == *oidset) {
+ maj = gss_create_empty_oid_set(&min, &set);
+ if (maj != GSS_S_COMPLETE) {
+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, parms->server,
+ "gss_create_empty_oid_set() failed.");
+ *oidset = GSS_C_NO_OID_SET;
+ return false;
+ }
+ if (add_spnego) {
+ oid = discard_const(&gss_mech_spnego);
+ maj = gss_add_oid_set_member(&min, oid, &set);
+ if (maj != GSS_S_COMPLETE) {
+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, parms->server,
+ "gss_add_oid_set_member() failed.");
+ (void)gss_release_oid_set(&min, &set);
+ *oidset = GSS_C_NO_OID_SET;
+ return false;
+ }
+ }
+ /* register in the pool so it can be released once the server
+ * winds down */
+ apr_pool_cleanup_register(parms->pool, (void *)set,
+ mag_oid_set_destroy,
+ apr_pool_cleanup_null);
+ *oidset = set;
+ } else {
+ set = *oidset;
+ }
+
+ if (strcmp(w, "krb5") == 0) {
+ oid = discard_const(gss_mech_krb5);
+ } else if (strcmp(w, "iakerb") == 0) {
+ oid = discard_const(gss_mech_iakerb);
+ } else if (strcmp(w, "ntlmssp") == 0) {
+ oid = discard_const(&gss_mech_ntlmssp);
+ } else {
+ buf.value = discard_const(w);
+ buf.length = strlen(w);
+ maj = gss_str_to_oid(&min, &buf, &oid);
+ if (maj != GSS_S_COMPLETE) {
+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, parms->server,
+ "Unrecognized GSSAPI Mechanism: [%s]", w);
+ return false;
+ }
+ release_oid = true;
+ }
+ maj = gss_add_oid_set_member(&min, oid, &set);
+ if (maj != GSS_S_COMPLETE) {
+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, parms->server,
+ "gss_add_oid_set_member() failed for [%s].", w);
+ }
+ if (release_oid) {
+ (void)gss_release_oid(&min, &oid);
+ }
+
+ return true;
+}
+
+static const char *mag_allow_mech(cmd_parms *parms, void *mconfig,
+ const char *w)
+{
+ struct mag_config *cfg = (struct mag_config *)mconfig;
+
+ if (!mag_list_of_mechs(parms, &cfg->allowed_mechs, true, w))
+ return "Failed to apply GssapiAllowedMech directive";
+
+ return NULL;
+}
+
+#ifdef HAVE_GSS_ACQUIRE_CRED_WITH_PASSWORD
+static const char *mag_basic_auth_mechs(cmd_parms *parms, void *mconfig,
+ const char *w)
+{
+ struct mag_config *cfg = (struct mag_config *)mconfig;
+
+ if (!mag_list_of_mechs(parms, &cfg->basic_mechs, false, w))
+ return "Failed to apply GssapiBasicAuthMech directive";
return NULL;
}
+#endif
+
+static void *mag_create_server_config(apr_pool_t *p, server_rec *s)
+{
+ struct mag_server_config *scfg;
+ uint32_t maj, min;
+ apr_status_t rc;
+
+ scfg = apr_pcalloc(p, sizeof(struct mag_server_config));
+
+ maj = gss_indicate_mechs(&min, &scfg->default_mechs);
+ if (maj != GSS_S_COMPLETE) {
+ ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
+ "gss_indicate_mechs() failed");
+ } else {
+ /* Register the set in pool */
+ apr_pool_cleanup_register(p, (void *)scfg->default_mechs,
+ mag_oid_set_destroy, apr_pool_cleanup_null);
+ }
+
+ rc = SEAL_KEY_CREATE(p, &scfg->mag_skey, NULL);
+ if (rc != OK) {
+ ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
+ "Failed to generate random sealing key!");
+ }
+
+ return scfg;
+}
static const command_rec mag_commands[] = {
- AP_INIT_FLAG("GSSSSLOnly", mag_ssl_only, NULL, OR_AUTHCFG,
- "Work only if connection is SSL Secured"),
- AP_INIT_FLAG("GSSLocalName", mag_map_to_local, NULL, OR_AUTHCFG,
+ AP_INIT_FLAG("GssapiSSLonly", mag_ssl_only, NULL, OR_AUTHCFG,
"Work only if connection is SSL Secured"),
- AP_INIT_FLAG("GSSConnectionContext", mag_conn_ctx, NULL, OR_AUTHCFG,
- "Authentication is valid for the life of the connection"),
- AP_INIT_ITERATE("GSSCredStore", mag_cred_store, NULL, OR_AUTHCFG,
+ AP_INIT_FLAG("GssapiLocalName", mag_map_to_local, NULL, OR_AUTHCFG,
+ "Translate principals to local names"),
+ AP_INIT_FLAG("GssapiConnectionBound", mag_conn_ctx, NULL, OR_AUTHCFG,
+ "Authentication is bound to the TCP connection"),
+ AP_INIT_FLAG("GssapiSignalPersistentAuth", mag_send_persist, NULL, OR_AUTHCFG,
+ "Send Persitent-Auth header according to connection bound"),
+ AP_INIT_FLAG("GssapiUseSessions", mag_use_sess, NULL, OR_AUTHCFG,
+ "Authentication uses mod_sessions to hold status"),
+ AP_INIT_RAW_ARGS("GssapiSessionKey", mag_sess_key, NULL, OR_AUTHCFG,
+ "Key Used to seal session data."),
+#ifdef HAVE_CRED_STORE
+ AP_INIT_FLAG("GssapiUseS4U2Proxy", mag_use_s4u2p, NULL, OR_AUTHCFG,
+ "Initializes credentials for s4u2proxy usage"),
+ AP_INIT_ITERATE("GssapiCredStore", mag_cred_store, NULL, OR_AUTHCFG,
"Credential Store"),
+ AP_INIT_RAW_ARGS("GssapiDelegCcacheDir", mag_deleg_ccache_dir, NULL,
+ OR_AUTHCFG, "Directory to store delegated credentials"),
+#endif
+#ifdef HAVE_GSS_ACQUIRE_CRED_WITH_PASSWORD
+ AP_INIT_FLAG("GssapiBasicAuth", mag_use_basic_auth, NULL, OR_AUTHCFG,
+ "Allows use of Basic Auth for authentication"),
+ AP_INIT_ITERATE("GssapiBasicAuthMech", mag_basic_auth_mechs, NULL,
+ OR_AUTHCFG, "Mechanisms to use for basic auth"),
+#endif
+ AP_INIT_ITERATE("GssapiAllowedMech", mag_allow_mech, NULL, OR_AUTHCFG,
+ "Allowed Mechanisms"),
{ NULL }
};
STANDARD20_MODULE_STUFF,
mag_create_dir_config,
NULL,
- NULL,
+ mag_create_server_config,
NULL,
mag_commands,
mag_register_hooks
projects / mod_auth_gssapi.git / blobdiff