lighttpd1.4/src/configfile.c

#include "first.h"

#include "server.h"
#include "log.h"
#include "stream.h"
#include "plugin.h"

#include "configparser.h"
#include "configfile.h"
#include "proc_open.h"
#include "request.h"

#include <sys/stat.h>

#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include <limits.h>
#include <assert.h>
#include <glob.h>


static int config_insert(server *srv) {
	size_t i;
	int ret = 0;
	buffer *stat_cache_string;

	config_values_t cv[] = {
		{ "server.bind",                       NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_SERVER     }, /* 0 */
		{ "server.errorlog",                   NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_SERVER     }, /* 1 */
		{ "server.errorfile-prefix",           NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_CONNECTION }, /* 2 */
		{ "server.chroot",                     NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_SERVER     }, /* 3 */
		{ "server.username",                   NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_SERVER     }, /* 4 */
		{ "server.groupname",                  NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_SERVER     }, /* 5 */
		{ "server.port",                       NULL, T_CONFIG_SHORT,   T_CONFIG_SCOPE_SERVER     }, /* 6 */
		{ "server.tag",                        NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_CONNECTION }, /* 7 */
		{ "server.use-ipv6",                   NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 8 */
		{ "server.modules",                    NULL, T_CONFIG_ARRAY,   T_CONFIG_SCOPE_SERVER     }, /* 9 */

		{ "server.event-handler",              NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_SERVER     }, /* 10 */
		{ "server.pid-file",                   NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_SERVER     }, /* 11 */
		{ "server.max-request-size",           NULL, T_CONFIG_INT,     T_CONFIG_SCOPE_SERVER     }, /* 12 */
		{ "server.max-worker",                 NULL, T_CONFIG_SHORT,   T_CONFIG_SCOPE_SERVER     }, /* 13 */
		{ "server.document-root",              NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_CONNECTION }, /* 14 */
		{ "server.force-lowercase-filenames",  NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 15 */
		{ "debug.log-condition-handling",      NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 16 */
		{ "server.max-keep-alive-requests",    NULL, T_CONFIG_SHORT,   T_CONFIG_SCOPE_CONNECTION }, /* 17 */
		{ "server.name",                       NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_CONNECTION }, /* 18 */
		{ "server.max-keep-alive-idle",        NULL, T_CONFIG_SHORT,   T_CONFIG_SCOPE_CONNECTION }, /* 19 */

		{ "server.max-read-idle",              NULL, T_CONFIG_SHORT,   T_CONFIG_SCOPE_CONNECTION }, /* 20 */
		{ "server.max-write-idle",             NULL, T_CONFIG_SHORT,   T_CONFIG_SCOPE_CONNECTION }, /* 21 */
		{ "server.error-handler",              NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_CONNECTION }, /* 22 */
		{ "server.max-fds",                    NULL, T_CONFIG_SHORT,   T_CONFIG_SCOPE_SERVER     }, /* 23 */
#ifdef HAVE_LSTAT
		{ "server.follow-symlink",             NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 24 */
#else
		{ "server.follow-symlink",
			"Your system lacks lstat(). We can not differ symlinks from files."
			"Please remove server.follow-symlinks from your config.",
			T_CONFIG_UNSUPPORTED, T_CONFIG_SCOPE_UNSET },
#endif
		{ "server.kbytes-per-second",          NULL, T_CONFIG_SHORT,   T_CONFIG_SCOPE_CONNECTION }, /* 25 */
		{ "connection.kbytes-per-second",      NULL, T_CONFIG_SHORT,   T_CONFIG_SCOPE_CONNECTION }, /* 26 */
		{ "mimetype.use-xattr",                NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 27 */
		{ "mimetype.assign",                   NULL, T_CONFIG_ARRAY,   T_CONFIG_SCOPE_CONNECTION }, /* 28 */
		{ "ssl.pemfile",                       NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_CONNECTION }, /* 29 */

		{ "ssl.engine",                        NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 30 */
		{ "debug.log-file-not-found",          NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 31 */
		{ "debug.log-request-handling",        NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 32 */
		{ "debug.log-response-header",         NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 33 */
		{ "debug.log-request-header",          NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 34 */
		{ "debug.log-ssl-noise",               NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 35 */
		{ "server.protocol-http11",            NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 36 */
		{ "debug.log-request-header-on-error", NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_SERVER     }, /* 37 */
		{ "debug.log-state-handling",          NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_SERVER     }, /* 38 */
		{ "ssl.ca-file",                       NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_CONNECTION }, /* 39 */

		{ "server.errorlog-use-syslog",        NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_SERVER     }, /* 40 */
		{ "server.range-requests",             NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 41 */
		{ "server.stat-cache-engine",          NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_SERVER     }, /* 42 */
		{ "server.max-connections",            NULL, T_CONFIG_SHORT,   T_CONFIG_SCOPE_SERVER     }, /* 43 */
		{ "server.network-backend",            NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_SERVER     }, /* 44 */
		{ "server.upload-dirs",                NULL, T_CONFIG_ARRAY,   T_CONFIG_SCOPE_SERVER     }, /* 45 */
		{ "server.core-files",                 NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_SERVER     }, /* 46 */
		{ "ssl.cipher-list",                   NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_CONNECTION }, /* 47 */
		{ "ssl.use-sslv2",                     NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 48 */
		{ "etag.use-inode",                    NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 49 */

		{ "etag.use-mtime",                    NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 50 */
		{ "etag.use-size",                     NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 51 */
		{ "server.reject-expect-100-with-417", NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_SERVER     }, /* 52 */
		{ "debug.log-timeouts",                NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 53 */
		{ "server.defer-accept",               NULL, T_CONFIG_SHORT,   T_CONFIG_SCOPE_CONNECTION }, /* 54 */
		{ "server.breakagelog",                NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_SERVER     }, /* 55 */
		{ "ssl.verifyclient.activate",         NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 56 */
		{ "ssl.verifyclient.enforce",          NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 57 */
		{ "ssl.verifyclient.depth",            NULL, T_CONFIG_SHORT,   T_CONFIG_SCOPE_CONNECTION }, /* 58 */
		{ "ssl.verifyclient.username",         NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_CONNECTION }, /* 59 */

		{ "ssl.verifyclient.exportcert",       NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 60 */
		{ "server.set-v6only",                 NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 61 */
		{ "ssl.use-sslv3",                     NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 62 */
		{ "ssl.dh-file",                       NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_CONNECTION }, /* 63 */
		{ "ssl.ec-curve",                      NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_CONNECTION }, /* 64 */
		{ "ssl.disable-client-renegotiation",  NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 65 */
		{ "ssl.honor-cipher-order",            NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 66 */
		{ "ssl.empty-fragments",               NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 67 */
		{ "server.upload-temp-file-size",      NULL, T_CONFIG_INT,     T_CONFIG_SCOPE_SERVER     }, /* 68 */
		{ "mimetype.xattr-name",               NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_SERVER     }, /* 69 */
		{ "server.listen-backlog",             NULL, T_CONFIG_INT,     T_CONFIG_SCOPE_CONNECTION }, /* 70 */
		{ "server.error-handler-404",          NULL, T_CONFIG_STRING,  T_CONFIG_SCOPE_CONNECTION }, /* 71 */
		{ "server.http-parseopt-header-strict",NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_SERVER     }, /* 72 */
		{ "server.http-parseopt-host-strict",  NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_SERVER     }, /* 73 */
		{ "server.http-parseopt-host-normalize",NULL,T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_SERVER     }, /* 74 */

		{ "server.host",
			"use server.bind instead",
			T_CONFIG_DEPRECATED, T_CONFIG_SCOPE_UNSET },
		{ "server.docroot",
			"use server.document-root instead",
			T_CONFIG_DEPRECATED, T_CONFIG_SCOPE_UNSET },
		{ "server.virtual-root",
			"load mod_simple_vhost and use simple-vhost.server-root instead",
			T_CONFIG_DEPRECATED, T_CONFIG_SCOPE_UNSET },
		{ "server.virtual-default-host",
			"load mod_simple_vhost and use simple-vhost.default-host instead",
			T_CONFIG_DEPRECATED, T_CONFIG_SCOPE_UNSET },
		{ "server.virtual-docroot",
			"load mod_simple_vhost and use simple-vhost.document-root instead",
			T_CONFIG_DEPRECATED, T_CONFIG_SCOPE_UNSET },
		{ "server.userid",
			"use server.username instead",
			T_CONFIG_DEPRECATED, T_CONFIG_SCOPE_UNSET },
		{ "server.groupid",
			"use server.groupname instead",
			T_CONFIG_DEPRECATED, T_CONFIG_SCOPE_UNSET },
		{ "server.use-keep-alive",
			"use server.max-keep-alive-requests = 0 instead",
			T_CONFIG_DEPRECATED, T_CONFIG_SCOPE_UNSET },
		{ "server.force-lower-case-files",
			"use server.force-lowercase-filenames instead",
			T_CONFIG_DEPRECATED, T_CONFIG_SCOPE_UNSET },

		{ NULL,                                NULL, T_CONFIG_UNSET,   T_CONFIG_SCOPE_UNSET      }
	};

	/* all T_CONFIG_SCOPE_SERVER options */
	cv[0].destination = srv->srvconf.bindhost;
	cv[1].destination = srv->srvconf.errorlog_file;
	cv[3].destination = srv->srvconf.changeroot;
	cv[4].destination = srv->srvconf.username;
	cv[5].destination = srv->srvconf.groupname;
	cv[6].destination = &(srv->srvconf.port);
	cv[9].destination = srv->srvconf.modules;

	cv[10].destination = srv->srvconf.event_handler;
	cv[11].destination = srv->srvconf.pid_file;
	cv[12].destination = &(srv->srvconf.max_request_size);
	cv[13].destination = &(srv->srvconf.max_worker);

	cv[23].destination = &(srv->srvconf.max_fds);

	cv[37].destination = &(srv->srvconf.log_request_header_on_error);
	cv[38].destination = &(srv->srvconf.log_state_handling);

	cv[40].destination = &(srv->srvconf.errorlog_use_syslog);
	stat_cache_string = buffer_init();
	cv[42].destination = stat_cache_string;
	cv[43].destination = &(srv->srvconf.max_conns);
	cv[44].destination = srv->srvconf.network_backend;
	cv[45].destination = srv->srvconf.upload_tempdirs;
	cv[46].destination = &(srv->srvconf.enable_cores);

	cv[52].destination = &(srv->srvconf.reject_expect_100_with_417);
	cv[55].destination = srv->srvconf.breakagelog_file;

	cv[68].destination = &(srv->srvconf.upload_temp_file_size);
	cv[69].destination = srv->srvconf.xattr_name;
	cv[72].destination = &(srv->srvconf.http_header_strict);
	cv[73].destination = &(srv->srvconf.http_host_strict);
	cv[74].destination = &(srv->srvconf.http_host_normalize);

	srv->config_storage = calloc(1, srv->config_context->used * sizeof(specific_config *));

	force_assert(srv->config_storage);

	for (i = 0; i < srv->config_context->used; i++) {
		data_config const* config = (data_config const*)srv->config_context->data[i];
		specific_config *s;

		s = calloc(1, sizeof(specific_config));
		force_assert(s);
		s->document_root = buffer_init();
		s->mimetypes     = array_init();
		s->server_name   = buffer_init();
		s->ssl_pemfile   = buffer_init();
		s->ssl_ca_file   = buffer_init();
		s->error_handler = buffer_init();
		s->error_handler_404 = buffer_init();
		s->server_tag    = buffer_init();
		s->ssl_cipher_list = buffer_init();
		s->ssl_dh_file   = buffer_init();
		s->ssl_ec_curve  = buffer_init();
		s->errorfile_prefix = buffer_init();
		s->max_keep_alive_requests = 16;
		s->max_keep_alive_idle = 5;
		s->max_read_idle = 60;
		s->max_write_idle = 360;
		s->use_xattr     = 0;
		s->ssl_enabled   = 0;
		s->ssl_honor_cipher_order = 1;
		s->ssl_empty_fragments = 0;
		s->ssl_use_sslv2 = 0;
		s->ssl_use_sslv3 = 0;
		s->use_ipv6      = 0;
		s->set_v6only    = 1;
		s->defer_accept  = 0;
#ifdef HAVE_LSTAT
		s->follow_symlink = 1;
#endif
		s->kbytes_per_second = 0;
		s->allow_http11  = 1;
		s->etag_use_inode = 1;
		s->etag_use_mtime = 1;
		s->etag_use_size  = 1;
		s->range_requests = 1;
		s->force_lowercase_filenames = (i == 0) ? 2 : 0; /* we wan't to detect later if user changed this for global section */
		s->global_kbytes_per_second = 0;
		s->global_bytes_per_second_cnt = 0;
		s->global_bytes_per_second_cnt_ptr = &s->global_bytes_per_second_cnt;
		s->ssl_verifyclient = 0;
		s->ssl_verifyclient_enforce = 1;
		s->ssl_verifyclient_username = buffer_init();
		s->ssl_verifyclient_depth = 9;
		s->ssl_verifyclient_export_cert = 0;
		s->ssl_disable_client_renegotiation = 1;
		s->listen_backlog = (0 == i ? 1024 : srv->config_storage[0]->listen_backlog);

		/* all T_CONFIG_SCOPE_CONNECTION options */
		cv[2].destination = s->errorfile_prefix;
		cv[7].destination = s->server_tag;
		cv[8].destination = &(s->use_ipv6);

		cv[14].destination = s->document_root;
		cv[15].destination = &(s->force_lowercase_filenames);
		cv[16].destination = &(s->log_condition_handling);
		cv[17].destination = &(s->max_keep_alive_requests);
		cv[18].destination = s->server_name;
		cv[19].destination = &(s->max_keep_alive_idle);

		cv[20].destination = &(s->max_read_idle);
		cv[21].destination = &(s->max_write_idle);
		cv[22].destination = s->error_handler;
#ifdef HAVE_LSTAT
		cv[24].destination = &(s->follow_symlink);
#endif
		cv[25].destination = &(s->global_kbytes_per_second);
		cv[26].destination = &(s->kbytes_per_second);
		cv[27].destination = &(s->use_xattr);
		cv[28].destination = s->mimetypes;
		cv[29].destination = s->ssl_pemfile;

		cv[30].destination = &(s->ssl_enabled);
		cv[31].destination = &(s->log_file_not_found);
		cv[32].destination = &(s->log_request_handling);
		cv[33].destination = &(s->log_response_header);
		cv[34].destination = &(s->log_request_header);
		cv[35].destination = &(s->log_ssl_noise);
		cv[36].destination = &(s->allow_http11);
		cv[39].destination = s->ssl_ca_file;

		cv[41].destination = &(s->range_requests);
		cv[47].destination = s->ssl_cipher_list;
		cv[48].destination = &(s->ssl_use_sslv2);
		cv[49].destination = &(s->etag_use_inode);

		cv[50].destination = &(s->etag_use_mtime);
		cv[51].destination = &(s->etag_use_size);
		cv[53].destination = &(s->log_timeouts);
		cv[54].destination = &(s->defer_accept);
		cv[56].destination = &(s->ssl_verifyclient);
		cv[57].destination = &(s->ssl_verifyclient_enforce);
		cv[58].destination = &(s->ssl_verifyclient_depth);
		cv[59].destination = s->ssl_verifyclient_username;

		cv[60].destination = &(s->ssl_verifyclient_export_cert);
		cv[61].destination = &(s->set_v6only);
		cv[62].destination = &(s->ssl_use_sslv3);
		cv[63].destination = s->ssl_dh_file;
		cv[64].destination = s->ssl_ec_curve;
		cv[65].destination = &(s->ssl_disable_client_renegotiation);
		cv[66].destination = &(s->ssl_honor_cipher_order);
		cv[67].destination = &(s->ssl_empty_fragments);
		cv[70].destination = &(s->listen_backlog);
		cv[71].destination = s->error_handler_404;

		srv->config_storage[i] = s;

		if (0 != (ret = config_insert_values_global(srv, config->value, cv, i == 0 ? T_CONFIG_SCOPE_SERVER : T_CONFIG_SCOPE_CONNECTION))) {
			break;
		}
	}

	{
		specific_config *s = srv->config_storage[0];
		s->http_parseopts= /*(global, but stored in con->conf.http_parseopts)*/
		   (srv->srvconf.http_header_strict  ?(HTTP_PARSEOPT_HEADER_STRICT) :0)
		  |(srv->srvconf.http_host_strict    ?(HTTP_PARSEOPT_HOST_STRICT
		                                      |HTTP_PARSEOPT_HOST_NORMALIZE):0)
		  |(srv->srvconf.http_host_normalize ?(HTTP_PARSEOPT_HOST_NORMALIZE):0);
	}

	if (buffer_string_is_empty(stat_cache_string)) {
		srv->srvconf.stat_cache_engine = STAT_CACHE_ENGINE_SIMPLE;
	} else if (buffer_is_equal_string(stat_cache_string, CONST_STR_LEN("simple"))) {
		srv->srvconf.stat_cache_engine = STAT_CACHE_ENGINE_SIMPLE;
#ifdef HAVE_FAM_H
	} else if (buffer_is_equal_string(stat_cache_string, CONST_STR_LEN("fam"))) {
		srv->srvconf.stat_cache_engine = STAT_CACHE_ENGINE_FAM;
#endif
	} else if (buffer_is_equal_string(stat_cache_string, CONST_STR_LEN("disable"))) {
		srv->srvconf.stat_cache_engine = STAT_CACHE_ENGINE_NONE;
	} else {
		log_error_write(srv, __FILE__, __LINE__, "sb",
				"server.stat-cache-engine can be one of \"disable\", \"simple\","
#ifdef HAVE_FAM_H
				" \"fam\","
#endif
				" but not:", stat_cache_string);
		ret = HANDLER_ERROR;
	}

	buffer_free(stat_cache_string);

	{
		data_string *ds;
		int prepend_mod_indexfile = 1;
		int append_mod_dirlisting = 1;
		int append_mod_staticfile = 1;

		/* prepend default modules */
		for (i = 0; i < srv->srvconf.modules->used; i++) {
			ds = (data_string *)srv->srvconf.modules->data[i];

			if (buffer_is_equal_string(ds->value, CONST_STR_LEN("mod_indexfile"))) {
				prepend_mod_indexfile = 0;
			}

			if (buffer_is_equal_string(ds->value, CONST_STR_LEN("mod_staticfile"))) {
				append_mod_staticfile = 0;
			}

			if (buffer_is_equal_string(ds->value, CONST_STR_LEN("mod_dirlisting"))) {
				append_mod_dirlisting = 0;
			}

			if (0 == prepend_mod_indexfile &&
			    0 == append_mod_dirlisting &&
			    0 == append_mod_staticfile) {
				break;
			}
		}

		if (prepend_mod_indexfile) {
			/* mod_indexfile has to be loaded before mod_fastcgi and friends */
			array *modules = array_init();

			ds = data_string_init();
			buffer_copy_string_len(ds->value, CONST_STR_LEN("mod_indexfile"));
			array_insert_unique(modules, (data_unset *)ds);

			for (i = 0; i < srv->srvconf.modules->used; i++) {
				data_unset *du = srv->srvconf.modules->data[i];
				array_insert_unique(modules, du->copy(du));
			}

			array_free(srv->srvconf.modules);
			srv->srvconf.modules = modules;
		}

		/* append default modules */
		if (append_mod_dirlisting) {
			ds = data_string_init();
			buffer_copy_string_len(ds->value, CONST_STR_LEN("mod_dirlisting"));
			array_insert_unique(srv->srvconf.modules, (data_unset *)ds);
		}

		if (append_mod_staticfile) {
			ds = data_string_init();
			buffer_copy_string_len(ds->value, CONST_STR_LEN("mod_staticfile"));
			array_insert_unique(srv->srvconf.modules, (data_unset *)ds);
		}
	}

	return ret;

}


#define PATCH(x) con->conf.x = s->x
int config_setup_connection(server *srv, connection *con) {
	specific_config *s = srv->config_storage[0];

	PATCH(http_parseopts);

	PATCH(allow_http11);
	PATCH(mimetypes);
	PATCH(document_root);
	PATCH(max_keep_alive_requests);
	PATCH(max_keep_alive_idle);
	PATCH(max_read_idle);
	PATCH(max_write_idle);
	PATCH(use_xattr);
	PATCH(error_handler);
	PATCH(error_handler_404);
	PATCH(errorfile_prefix);
#ifdef HAVE_LSTAT
	PATCH(follow_symlink);
#endif
	PATCH(server_tag);
	PATCH(kbytes_per_second);
	PATCH(global_kbytes_per_second);
	PATCH(global_bytes_per_second_cnt);

	con->conf.global_bytes_per_second_cnt_ptr = &s->global_bytes_per_second_cnt;
	buffer_copy_buffer(con->server_name, s->server_name);

	PATCH(log_request_header);
	PATCH(log_response_header);
	PATCH(log_request_handling);
	PATCH(log_condition_handling);
	PATCH(log_file_not_found);
	PATCH(log_ssl_noise);
	PATCH(log_timeouts);

	PATCH(range_requests);
	PATCH(force_lowercase_filenames);
	/*PATCH(listen_backlog);*//*(not necessary; used only at startup)*/
	PATCH(ssl_enabled);

	PATCH(ssl_pemfile);
#ifdef USE_OPENSSL
	PATCH(ssl_pemfile_x509);
	PATCH(ssl_pemfile_pkey);
#endif
	PATCH(ssl_ca_file);
#ifdef USE_OPENSSL
	PATCH(ssl_ca_file_cert_names);
#endif
	PATCH(ssl_cipher_list);
	PATCH(ssl_dh_file);
	PATCH(ssl_ec_curve);
	PATCH(ssl_honor_cipher_order);
	PATCH(ssl_empty_fragments);
	PATCH(ssl_use_sslv2);
	PATCH(ssl_use_sslv3);
	PATCH(etag_use_inode);
	PATCH(etag_use_mtime);
	PATCH(etag_use_size);

	PATCH(ssl_verifyclient);
	PATCH(ssl_verifyclient_enforce);
	PATCH(ssl_verifyclient_depth);
	PATCH(ssl_verifyclient_username);
	PATCH(ssl_verifyclient_export_cert);
	PATCH(ssl_disable_client_renegotiation);

	return 0;
}

int config_patch_connection(server *srv, connection *con) {
	size_t i, j;

	/* skip the first, the global context */
	for (i = 1; i < srv->config_context->used; i++) {
		data_config *dc = (data_config *)srv->config_context->data[i];
		specific_config *s = srv->config_storage[i];

		/* condition didn't match */
		if (!config_check_cond(srv, con, dc)) continue;

		/* merge config */
		for (j = 0; j < dc->value->used; j++) {
			data_unset *du = dc->value->data[j];

			if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.document-root"))) {
				PATCH(document_root);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.range-requests"))) {
				PATCH(range_requests);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.error-handler"))) {
				PATCH(error_handler);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.error-handler-404"))) {
				PATCH(error_handler_404);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.errorfile-prefix"))) {
				PATCH(errorfile_prefix);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("mimetype.assign"))) {
				PATCH(mimetypes);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.max-keep-alive-requests"))) {
				PATCH(max_keep_alive_requests);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.max-keep-alive-idle"))) {
				PATCH(max_keep_alive_idle);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.max-write-idle"))) {
				PATCH(max_write_idle);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.max-read-idle"))) {
				PATCH(max_read_idle);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("mimetype.use-xattr"))) {
				PATCH(use_xattr);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("etag.use-inode"))) {
				PATCH(etag_use_inode);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("etag.use-mtime"))) {
				PATCH(etag_use_mtime);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("etag.use-size"))) {
				PATCH(etag_use_size);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.pemfile"))) {
				PATCH(ssl_pemfile);
#ifdef USE_OPENSSL
				PATCH(ssl_pemfile_x509);
				PATCH(ssl_pemfile_pkey);
#endif
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.ca-file"))) {
				PATCH(ssl_ca_file);
#ifdef USE_OPENSSL
				PATCH(ssl_ca_file_cert_names);
#endif
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.honor-cipher-order"))) {
				PATCH(ssl_honor_cipher_order);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.empty-fragments"))) {
				PATCH(ssl_empty_fragments);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.use-sslv2"))) {
				PATCH(ssl_use_sslv2);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.use-sslv3"))) {
				PATCH(ssl_use_sslv3);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.cipher-list"))) {
				PATCH(ssl_cipher_list);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.engine"))) {
				PATCH(ssl_enabled);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.dh-file"))) {
				PATCH(ssl_dh_file);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.ec-curve"))) {
				PATCH(ssl_ec_curve);
#ifdef HAVE_LSTAT
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.follow-symlink"))) {
				PATCH(follow_symlink);
#endif
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.name"))) {
				buffer_copy_buffer(con->server_name, s->server_name);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.tag"))) {
				PATCH(server_tag);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("connection.kbytes-per-second"))) {
				PATCH(kbytes_per_second);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("debug.log-request-handling"))) {
				PATCH(log_request_handling);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("debug.log-request-header"))) {
				PATCH(log_request_header);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("debug.log-response-header"))) {
				PATCH(log_response_header);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("debug.log-condition-handling"))) {
				PATCH(log_condition_handling);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("debug.log-file-not-found"))) {
				PATCH(log_file_not_found);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("debug.log-ssl-noise"))) {
				PATCH(log_ssl_noise);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("debug.log-timeouts"))) {
				PATCH(log_timeouts);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.protocol-http11"))) {
				PATCH(allow_http11);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.force-lowercase-filenames"))) {
				PATCH(force_lowercase_filenames);
		      #if 0 /*(not necessary; used only at startup)*/
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.listen-backlog"))) {
				PATCH(listen_backlog);
		      #endif
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("server.kbytes-per-second"))) {
				PATCH(global_kbytes_per_second);
				PATCH(global_bytes_per_second_cnt);
				con->conf.global_bytes_per_second_cnt_ptr = &s->global_bytes_per_second_cnt;
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.verifyclient.activate"))) {
				PATCH(ssl_verifyclient);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.verifyclient.enforce"))) {
				PATCH(ssl_verifyclient_enforce);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.verifyclient.depth"))) {
				PATCH(ssl_verifyclient_depth);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.verifyclient.username"))) {
				PATCH(ssl_verifyclient_username);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.verifyclient.exportcert"))) {
				PATCH(ssl_verifyclient_export_cert);
			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("ssl.disable-client-renegotiation"))) {
				PATCH(ssl_disable_client_renegotiation);
			}
		}
	}

		con->etag_flags = (con->conf.etag_use_mtime ? ETAG_USE_MTIME : 0) |
				  (con->conf.etag_use_inode ? ETAG_USE_INODE : 0) |
				  (con->conf.etag_use_size  ? ETAG_USE_SIZE  : 0);

	return 0;
}
#undef PATCH

typedef struct {
	int foo;
	int bar;

	const buffer *source;
	const char *input;
	size_t offset;
	size_t size;

	int line_pos;
	int line;

	int in_key;
	int in_brace;
	int in_cond;
} tokenizer_t;