1: #ifndef _BASE_H_
2: #define _BASE_H_
3:
4: #ifdef HAVE_CONFIG_H
5: # include "config.h"
6: #endif
7: #include "settings.h"
8:
9: #include <sys/types.h>
10: #include <sys/time.h>
11: #include <sys/stat.h>
12:
13: #include <limits.h>
14:
15: #ifdef HAVE_STDINT_H
16: # include <stdint.h>
17: #endif
18:
19: #ifdef HAVE_INTTYPES_H
20: # include <inttypes.h>
21: #endif
22:
23: #include "buffer.h"
24: #include "array.h"
25: #include "chunk.h"
26: #include "keyvalue.h"
27: #include "fdevent.h"
28: #include "sys-socket.h"
29: #include "splaytree.h"
30: #include "etag.h"
31:
32:
33: #if defined HAVE_LIBSSL && defined HAVE_OPENSSL_SSL_H
34: # define USE_OPENSSL
35: # include <openssl/ssl.h>
36: # if ! defined OPENSSL_NO_TLSEXT && ! defined SSL_CTRL_SET_TLSEXT_HOSTNAME
37: # define OPENSSL_NO_TLSEXT
38: # endif
39: #endif
40:
41: #ifdef HAVE_FAM_H
42: # include <fam.h>
43: #endif
44:
45: #ifndef O_BINARY
46: # define O_BINARY 0
47: #endif
48:
49: #ifndef O_LARGEFILE
50: # define O_LARGEFILE 0
51: #endif
52:
53: #ifndef SIZE_MAX
54: # ifdef SIZE_T_MAX
55: # define SIZE_MAX SIZE_T_MAX
56: # else
57: # define SIZE_MAX ((size_t)~0)
58: # endif
59: #endif
60:
61: #ifndef SSIZE_MAX
62: # define SSIZE_MAX ((size_t)~0 >> 1)
63: #endif
64:
65: #ifdef __APPLE__
66: #include <crt_externs.h>
67: #define environ (* _NSGetEnviron())
68: #else
69: extern char **environ;
70: #endif
71:
72: /* for solaris 2.5 and NetBSD 1.3.x */
73: #ifndef HAVE_SOCKLEN_T
74: typedef int socklen_t;
75: #endif
76:
77: /* solaris and NetBSD 1.3.x again */
78: #if (!defined(HAVE_STDINT_H)) && (!defined(HAVE_INTTYPES_H)) && (!defined(uint32_t))
79: # define uint32_t u_int32_t
80: #endif
81:
82:
83: #ifndef SHUT_WR
84: # define SHUT_WR 1
85: #endif
86:
87: typedef enum { T_CONFIG_UNSET,
88: T_CONFIG_STRING,
89: T_CONFIG_SHORT,
90: T_CONFIG_INT,
91: T_CONFIG_BOOLEAN,
92: T_CONFIG_ARRAY,
93: T_CONFIG_LOCAL,
94: T_CONFIG_DEPRECATED,
95: T_CONFIG_UNSUPPORTED
96: } config_values_type_t;
97:
98: typedef enum { T_CONFIG_SCOPE_UNSET,
99: T_CONFIG_SCOPE_SERVER,
100: T_CONFIG_SCOPE_CONNECTION
101: } config_scope_type_t;
102:
103: typedef struct {
104: const char *key;
105: void *destination;
106:
107: config_values_type_t type;
108: config_scope_type_t scope;
109: } config_values_t;
110:
111: typedef enum { DIRECT, EXTERNAL } connection_type;
112:
113: typedef struct {
114: char *key;
115: connection_type type;
116: char *value;
117: } request_handler;
118:
119: typedef struct {
120: char *key;
121: char *host;
122: unsigned short port;
123: int used;
124: short factor;
125: } fcgi_connections;
126:
127:
128: typedef union {
129: #ifdef HAVE_IPV6
130: struct sockaddr_in6 ipv6;
131: #endif
132: struct sockaddr_in ipv4;
133: #ifdef HAVE_SYS_UN_H
134: struct sockaddr_un un;
135: #endif
136: struct sockaddr plain;
137: } sock_addr;
138:
139: /* fcgi_response_header contains ... */
140: #define HTTP_STATUS BV(0)
141: #define HTTP_CONNECTION BV(1)
142: #define HTTP_CONTENT_LENGTH BV(2)
143: #define HTTP_DATE BV(3)
144: #define HTTP_LOCATION BV(4)
145:
146: typedef struct {
147: /** HEADER */
148: /* the request-line */
149: buffer *request;
150: buffer *uri;
151:
152: buffer *orig_uri;
153:
154: http_method_t http_method;
155: http_version_t http_version;
156:
157: buffer *request_line;
158:
159: /* strings to the header */
160: buffer *http_host; /* not alloced */
161: const char *http_range;
162: const char *http_content_type;
163: const char *http_if_modified_since;
164: const char *http_if_none_match;
165:
166: array *headers;
167:
168: /* CONTENT */
169: size_t content_length; /* returned by strtoul() */
170:
171: /* internal representation */
172: int accept_encoding;
173:
174: /* internal */
175: buffer *pathinfo;
176: } request;
177:
178: typedef struct {
179: off_t content_length;
180: int keep_alive; /* used by the subrequests in proxy, cgi and fcgi to say the subrequest was keep-alive or not */
181:
182: array *headers;
183:
184: enum {
185: HTTP_TRANSFER_ENCODING_IDENTITY, HTTP_TRANSFER_ENCODING_CHUNKED
186: } transfer_encoding;
187: } response;
188:
189: typedef struct {
190: buffer *scheme; /* scheme without colon or slashes ( "http" or "https" ) */
191:
192: /* authority with optional portnumber ("site.name" or "site.name:8080" ) NOTE: without "username:password@" */
193: buffer *authority;
194:
195: /* path including leading slash ("/" or "/index.html") - urldecoded, and sanitized ( buffer_path_simplify() && buffer_urldecode_path() ) */
196: buffer *path;
197: buffer *path_raw; /* raw path, as sent from client. no urldecoding or path simplifying */
198: buffer *query; /* querystring ( everything after "?", ie: in "/index.php?foo=1", query is "foo=1" ) */
199: } request_uri;
200:
201: typedef struct {
202: buffer *path;
203: buffer *basedir; /* path = "(basedir)(.*)" */
204:
205: buffer *doc_root; /* path = doc_root + rel_path */
206: buffer *rel_path;
207:
208: buffer *etag;
209: } physical;
210:
211: typedef struct {
212: buffer *name;
213: buffer *etag;
214:
215: struct stat st;
216:
217: time_t stat_ts;
218:
219: #ifdef HAVE_LSTAT
220: char is_symlink;
221: #endif
222:
223: #ifdef HAVE_FAM_H
224: int dir_version;
225: #endif
226:
227: buffer *content_type;
228: } stat_cache_entry;
229:
230: typedef struct {
231: splay_tree *files; /* the nodes of the tree are stat_cache_entry's */
232:
233: buffer *dir_name; /* for building the dirname from the filename */
234: #ifdef HAVE_FAM_H
235: splay_tree *dirs; /* the nodes of the tree are fam_dir_entry */
236:
237: FAMConnection fam;
238: int fam_fcce_ndx;
239: #endif
240: buffer *hash_key; /* temp-store for the hash-key */
241: } stat_cache;
242:
243: typedef struct {
244: array *mimetypes;
245:
246: /* virtual-servers */
247: buffer *document_root;
248: buffer *server_name;
249: buffer *error_handler;
250: buffer *server_tag;
251: buffer *dirlist_encoding;
252: buffer *errorfile_prefix;
253:
254: unsigned short max_keep_alive_requests;
255: unsigned short max_keep_alive_idle;
256: unsigned short max_read_idle;
257: unsigned short max_write_idle;
258: unsigned short use_xattr;
259: unsigned short follow_symlink;
260: unsigned short range_requests;
261:
262: /* debug */
263:
264: unsigned short log_file_not_found;
265: unsigned short log_request_header;
266: unsigned short log_request_handling;
267: unsigned short log_response_header;
268: unsigned short log_condition_handling;
269: unsigned short log_ssl_noise;
270: unsigned short log_timeouts;
271:
272:
273: /* server wide */
274: buffer *ssl_pemfile;
275: buffer *ssl_ca_file;
276: buffer *ssl_cipher_list;
277: buffer *ssl_dh_file;
278: buffer *ssl_ec_curve;
279: unsigned short ssl_honor_cipher_order; /* determine SSL cipher in server-preferred order, not client-order */
280: unsigned short ssl_empty_fragments; /* whether to not set SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS */
281: unsigned short ssl_use_sslv2;
282: unsigned short ssl_use_sslv3;
283: unsigned short ssl_verifyclient;
284: unsigned short ssl_verifyclient_enforce;
285: unsigned short ssl_verifyclient_depth;
286: buffer *ssl_verifyclient_username;
287: unsigned short ssl_verifyclient_export_cert;
288: unsigned short ssl_disable_client_renegotiation;
289:
290: unsigned short use_ipv6, set_v6only; /* set_v6only is only a temporary option */
291: unsigned short defer_accept;
292: unsigned short ssl_enabled; /* only interesting for setting up listening sockets. don't use at runtime */
293: unsigned short allow_http11;
294: unsigned short etag_use_inode;
295: unsigned short etag_use_mtime;
296: unsigned short etag_use_size;
297: unsigned short force_lowercase_filenames; /* if the FS is case-insensitive, force all files to lower-case */
298: unsigned int max_request_size;
299:
300: unsigned short kbytes_per_second; /* connection kb/s limit */
301:
302: /* configside */
303: unsigned short global_kbytes_per_second; /* */
304:
305: off_t global_bytes_per_second_cnt;
306: /* server-wide traffic-shaper
307: *
308: * each context has the counter which is inited once
309: * a second by the global_kbytes_per_second config-var
310: *
311: * as soon as global_kbytes_per_second gets below 0
312: * the connected conns are "offline" a little bit
313: *
314: * the problem:
315: * we somehow have to loose our "we are writable" signal
316: * on the way.
317: *
318: */
319: off_t *global_bytes_per_second_cnt_ptr; /* */
320:
321: #ifdef USE_OPENSSL
322: SSL_CTX *ssl_ctx; /* not patched */
323: /* SNI per host: with COMP_SERVER_SOCKET, COMP_HTTP_SCHEME, COMP_HTTP_HOST */
324: EVP_PKEY *ssl_pemfile_pkey;
325: X509 *ssl_pemfile_x509;
326: STACK_OF(X509_NAME) *ssl_ca_file_cert_names;
327: #endif
328: } specific_config;
329:
330: /* the order of the items should be the same as they are processed
331: * read before write as we use this later */
332: typedef enum {
333: CON_STATE_CONNECT,
334: CON_STATE_REQUEST_START,
335: CON_STATE_READ,
336: CON_STATE_REQUEST_END,
337: CON_STATE_READ_POST,
338: CON_STATE_HANDLE_REQUEST,
339: CON_STATE_RESPONSE_START,
340: CON_STATE_WRITE,
341: CON_STATE_RESPONSE_END,
342: CON_STATE_ERROR,
343: CON_STATE_CLOSE
344: } connection_state_t;
345:
346: typedef enum { COND_RESULT_UNSET, COND_RESULT_FALSE, COND_RESULT_TRUE } cond_result_t;
347: typedef struct {
348: cond_result_t result;
349: int patterncount;
350: int matches[3 * 10];
351: buffer *comp_value; /* just a pointer */
352:
353: comp_key_t comp_type;
354: } cond_cache_t;
355:
356: typedef struct {
357: connection_state_t state;
358:
359: /* timestamps */
360: time_t read_idle_ts;
361: time_t close_timeout_ts;
362: time_t write_request_ts;
363:
364: time_t connection_start;
365: time_t request_start;
366:
367: struct timeval start_tv;
368:
369: size_t request_count; /* number of requests handled in this connection */
370: size_t loops_per_request; /* to catch endless loops in a single request
371: *
372: * used by mod_rewrite, mod_fastcgi, ... and others
373: * this is self-protection
374: */
375:
376: int fd; /* the FD for this connection */
377: int fde_ndx; /* index for the fdevent-handler */
378: int ndx; /* reverse mapping to server->connection[ndx] */
379:
380: /* fd states */
381: int is_readable;
382: int is_writable;
383:
384: int keep_alive; /* only request.c can enable it, all other just disable */
385: int keep_alive_idle; /* remember max_keep_alive_idle from config */
386:
387: int file_started;
388: int file_finished;
389:
390: chunkqueue *write_queue; /* a large queue for low-level write ( HTTP response ) [ file, mem ] */
391: chunkqueue *read_queue; /* a small queue for low-level read ( HTTP request ) [ mem ] */
392: chunkqueue *request_content_queue; /* takes request-content into tempfile if necessary [ tempfile, mem ]*/
393:
394: int traffic_limit_reached;
395:
396: off_t bytes_written; /* used by mod_accesslog, mod_rrd */
397: off_t bytes_written_cur_second; /* used by mod_accesslog, mod_rrd */
398: off_t bytes_read; /* used by mod_accesslog, mod_rrd */
399: off_t bytes_header;
400:
401: int http_status;
402:
403: sock_addr dst_addr;
404: buffer *dst_addr_buf;
405:
406: /* request */
407: buffer *parse_request;
408: unsigned int parsed_response; /* bitfield which contains the important header-fields of the parsed response header */
409:
410: request request;
411: request_uri uri;
412: physical physical;
413: response response;
414:
415: size_t header_len;
416:
417: array *environment; /* used to pass lighttpd internal stuff to the FastCGI/CGI apps, setenv does that */
418:
419: /* response */
420: int got_response;
421:
422: int in_joblist;
423:
424: connection_type mode;
425:
426: void **plugin_ctx; /* plugin connection specific config */
427:
428: specific_config conf; /* global connection specific config */
429: cond_cache_t *cond_cache;
430:
431: buffer *server_name;
432:
433: /* error-handler */
434: buffer *error_handler;
435: int error_handler_saved_status;
436: int in_error_handler;
437:
438: struct server_socket *srv_socket; /* reference to the server-socket */
439:
440: #ifdef USE_OPENSSL
441: SSL *ssl;
442: # ifndef OPENSSL_NO_TLSEXT
443: buffer *tlsext_server_name;
444: # endif
445: unsigned int renegotiations; /* count of SSL_CB_HANDSHAKE_START */
446: #endif
447: /* etag handling */
448: etag_flags_t etag_flags;
449:
450: int conditional_is_valid[COMP_LAST_ELEMENT];
451: } connection;
452:
453: typedef struct {
454: connection **ptr;
455: size_t size;
456: size_t used;
457: } connections;
458:
459:
460: #ifdef HAVE_IPV6
461: typedef struct {
462: int family;
463: union {
464: struct in6_addr ipv6;
465: struct in_addr ipv4;
466: } addr;
467: char b2[INET6_ADDRSTRLEN + 1];
468: time_t ts;
469: } inet_ntop_cache_type;
470: #endif
471:
472:
473: typedef struct {
474: buffer *uri;
475: time_t mtime;
476: int http_status;
477: } realpath_cache_type;
478:
479: typedef struct {
480: time_t mtime; /* the key */
481: buffer *str; /* a buffer for the string represenation */
482: } mtime_cache_type;
483:
484: typedef struct {
485: void *ptr;
486: size_t used;
487: size_t size;
488: } buffer_plugin;
489:
490: typedef struct {
491: unsigned short port;
492: buffer *bindhost;
493:
494: buffer *errorlog_file;
495: unsigned short errorlog_use_syslog;
496: buffer *breakagelog_file;
497:
498: unsigned short dont_daemonize;
499: buffer *changeroot;
500: buffer *username;
501: buffer *groupname;
502:
503: buffer *pid_file;
504:
505: buffer *event_handler;
506:
507: buffer *modules_dir;
508: buffer *network_backend;
509: array *modules;
510: array *upload_tempdirs;
511:
512: unsigned short max_worker;
513: unsigned short max_fds;
514: unsigned short max_conns;
515: unsigned int max_request_size;
516:
517: unsigned short log_request_header_on_error;
518: unsigned short log_state_handling;
519:
520: enum { STAT_CACHE_ENGINE_UNSET,
521: STAT_CACHE_ENGINE_NONE,
522: STAT_CACHE_ENGINE_SIMPLE
523: #ifdef HAVE_FAM_H
524: , STAT_CACHE_ENGINE_FAM
525: #endif
526: } stat_cache_engine;
527: unsigned short enable_cores;
528: unsigned short reject_expect_100_with_417;
529: } server_config;
530:
531: typedef struct server_socket {
532: sock_addr addr;
533: int fd;
534: int fde_ndx;
535:
536: unsigned short is_ssl;
537:
538: buffer *srv_token;
539:
540: #ifdef USE_OPENSSL
541: SSL_CTX *ssl_ctx;
542: #endif
543: } server_socket;
544:
545: typedef struct {
546: server_socket **ptr;
547:
548: size_t size;
549: size_t used;
550: } server_socket_array;
551:
552: typedef struct server {
553: server_socket_array srv_sockets;
554:
555: /* the errorlog */
556: int errorlog_fd;
557: enum { ERRORLOG_FILE, ERRORLOG_FD, ERRORLOG_SYSLOG, ERRORLOG_PIPE } errorlog_mode;
558: buffer *errorlog_buf;
559:
560: fdevents *ev, *ev_ins;
561:
562: buffer_plugin plugins;
563: void *plugin_slots;
564:
565: /* counters */
566: int con_opened;
567: int con_read;
568: int con_written;
569: int con_closed;
570:
571: int ssl_is_init;
572:
573: int max_fds; /* max possible fds */
574: int cur_fds; /* currently used fds */
575: int want_fds; /* waiting fds */
576: int sockets_disabled;
577:
578: size_t max_conns;
579:
580: /* buffers */
581: buffer *parse_full_path;
582: buffer *response_header;
583: buffer *response_range;
584: buffer *tmp_buf;
585:
586: buffer *tmp_chunk_len;
587:
588: buffer *empty_string; /* is necessary for cond_match */
589:
590: buffer *cond_check_buf;
591:
592: /* caches */
593: #ifdef HAVE_IPV6
594: inet_ntop_cache_type inet_ntop_cache[INET_NTOP_CACHE_MAX];
595: #endif
596: mtime_cache_type mtime_cache[FILE_CACHE_MAX];
597:
598: array *split_vals;
599:
600: /* Timestamps */
601: time_t cur_ts;
602: time_t last_generated_date_ts;
603: time_t last_generated_debug_ts;
604: time_t startup_ts;
605:
606: char entropy[8]; /* from /dev/[u]random if possible, otherwise rand() */
607: char is_real_entropy; /* whether entropy is from /dev/[u]random */
608:
609: buffer *ts_debug_str;
610: buffer *ts_date_str;
611:
612: /* config-file */
613: array *config;
614: array *config_touched;
615:
616: array *config_context;
617: specific_config **config_storage;
618:
619: server_config srvconf;
620:
621: short int config_deprecated;
622: short int config_unsupported;
623:
624: connections *conns;
625: connections *joblist;
626: connections *fdwaitqueue;
627:
628: stat_cache *stat_cache;
629:
630: /**
631: * The status array can carry all the status information you want
632: * the key to the array is <module-prefix>.<name>
633: * and the values are counters
634: *
635: * example:
636: * fastcgi.backends = 10
637: * fastcgi.active-backends = 6
638: * fastcgi.backend.<key>.load = 24
639: * fastcgi.backend.<key>....
640: *
641: * fastcgi.backend.<key>.disconnects = ...
642: */
643: array *status;
644:
645: fdevent_handler_t event_handler;
646:
647: int (* network_backend_write)(struct server *srv, connection *con, int fd, chunkqueue *cq, off_t max_bytes);
648: #ifdef USE_OPENSSL
649: int (* network_ssl_backend_write)(struct server *srv, connection *con, SSL *ssl, chunkqueue *cq, off_t max_bytes);
650: #endif
651:
652: uid_t uid;
653: gid_t gid;
654: } server;
655:
656:
657: #endif
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