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: int dir_ndx;
226: #endif
227:
228: buffer *content_type;
229: } stat_cache_entry;
230:
231: typedef struct {
232: splay_tree *files; /* the nodes of the tree are stat_cache_entry's */
233:
234: buffer *dir_name; /* for building the dirname from the filename */
235: #ifdef HAVE_FAM_H
236: splay_tree *dirs; /* the nodes of the tree are fam_dir_entry */
237:
238: FAMConnection *fam;
239: int fam_fcce_ndx;
240: #endif
241: buffer *hash_key; /* temp-store for the hash-key */
242: } stat_cache;
243:
244: typedef struct {
245: array *mimetypes;
246:
247: /* virtual-servers */
248: buffer *document_root;
249: buffer *server_name;
250: buffer *error_handler;
251: buffer *server_tag;
252: buffer *dirlist_encoding;
253: buffer *errorfile_prefix;
254:
255: unsigned short max_keep_alive_requests;
256: unsigned short max_keep_alive_idle;
257: unsigned short max_read_idle;
258: unsigned short max_write_idle;
259: unsigned short use_xattr;
260: unsigned short follow_symlink;
261: unsigned short range_requests;
262:
263: /* debug */
264:
265: unsigned short log_file_not_found;
266: unsigned short log_request_header;
267: unsigned short log_request_handling;
268: unsigned short log_response_header;
269: unsigned short log_condition_handling;
270: unsigned short log_ssl_noise;
271: unsigned short log_timeouts;
272:
273:
274: /* server wide */
275: buffer *ssl_pemfile;
276: buffer *ssl_ca_file;
277: buffer *ssl_cipher_list;
278: buffer *ssl_dh_file;
279: buffer *ssl_ec_curve;
280: unsigned short ssl_honor_cipher_order; /* determine SSL cipher in server-preferred order, not client-order */
281: unsigned short ssl_empty_fragments; /* whether to not set SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS */
282: unsigned short ssl_use_sslv2;
283: unsigned short ssl_use_sslv3;
284: unsigned short ssl_verifyclient;
285: unsigned short ssl_verifyclient_enforce;
286: unsigned short ssl_verifyclient_depth;
287: buffer *ssl_verifyclient_username;
288: unsigned short ssl_verifyclient_export_cert;
289: unsigned short ssl_disable_client_renegotiation;
290:
291: unsigned short use_ipv6, set_v6only; /* set_v6only is only a temporary option */
292: unsigned short defer_accept;
293: unsigned short ssl_enabled; /* only interesting for setting up listening sockets. don't use at runtime */
294: unsigned short allow_http11;
295: unsigned short etag_use_inode;
296: unsigned short etag_use_mtime;
297: unsigned short etag_use_size;
298: unsigned short force_lowercase_filenames; /* if the FS is case-insensitive, force all files to lower-case */
299: unsigned int max_request_size;
300:
301: unsigned short kbytes_per_second; /* connection kb/s limit */
302:
303: /* configside */
304: unsigned short global_kbytes_per_second; /* */
305:
306: off_t global_bytes_per_second_cnt;
307: /* server-wide traffic-shaper
308: *
309: * each context has the counter which is inited once
310: * a second by the global_kbytes_per_second config-var
311: *
312: * as soon as global_kbytes_per_second gets below 0
313: * the connected conns are "offline" a little bit
314: *
315: * the problem:
316: * we somehow have to loose our "we are writable" signal
317: * on the way.
318: *
319: */
320: off_t *global_bytes_per_second_cnt_ptr; /* */
321:
322: #ifdef USE_OPENSSL
323: SSL_CTX *ssl_ctx;
324: #endif
325: } specific_config;
326:
327: /* the order of the items should be the same as they are processed
328: * read before write as we use this later */
329: typedef enum {
330: CON_STATE_CONNECT,
331: CON_STATE_REQUEST_START,
332: CON_STATE_READ,
333: CON_STATE_REQUEST_END,
334: CON_STATE_READ_POST,
335: CON_STATE_HANDLE_REQUEST,
336: CON_STATE_RESPONSE_START,
337: CON_STATE_WRITE,
338: CON_STATE_RESPONSE_END,
339: CON_STATE_ERROR,
340: CON_STATE_CLOSE
341: } connection_state_t;
342:
343: typedef enum { COND_RESULT_UNSET, COND_RESULT_FALSE, COND_RESULT_TRUE } cond_result_t;
344: typedef struct {
345: cond_result_t result;
346: int patterncount;
347: int matches[3 * 10];
348: buffer *comp_value; /* just a pointer */
349:
350: comp_key_t comp_type;
351: } cond_cache_t;
352:
353: typedef struct {
354: connection_state_t state;
355:
356: /* timestamps */
357: time_t read_idle_ts;
358: time_t close_timeout_ts;
359: time_t write_request_ts;
360:
361: time_t connection_start;
362: time_t request_start;
363:
364: struct timeval start_tv;
365:
366: size_t request_count; /* number of requests handled in this connection */
367: size_t loops_per_request; /* to catch endless loops in a single request
368: *
369: * used by mod_rewrite, mod_fastcgi, ... and others
370: * this is self-protection
371: */
372:
373: int fd; /* the FD for this connection */
374: int fde_ndx; /* index for the fdevent-handler */
375: int ndx; /* reverse mapping to server->connection[ndx] */
376:
377: /* fd states */
378: int is_readable;
379: int is_writable;
380:
381: int keep_alive; /* only request.c can enable it, all other just disable */
382: int keep_alive_idle; /* remember max_keep_alive_idle from config */
383:
384: int file_started;
385: int file_finished;
386:
387: chunkqueue *write_queue; /* a large queue for low-level write ( HTTP response ) [ file, mem ] */
388: chunkqueue *read_queue; /* a small queue for low-level read ( HTTP request ) [ mem ] */
389: chunkqueue *request_content_queue; /* takes request-content into tempfile if necessary [ tempfile, mem ]*/
390:
391: int traffic_limit_reached;
392:
393: off_t bytes_written; /* used by mod_accesslog, mod_rrd */
394: off_t bytes_written_cur_second; /* used by mod_accesslog, mod_rrd */
395: off_t bytes_read; /* used by mod_accesslog, mod_rrd */
396: off_t bytes_header;
397:
398: int http_status;
399:
400: sock_addr dst_addr;
401: buffer *dst_addr_buf;
402:
403: /* request */
404: buffer *parse_request;
405: unsigned int parsed_response; /* bitfield which contains the important header-fields of the parsed response header */
406:
407: request request;
408: request_uri uri;
409: physical physical;
410: response response;
411:
412: size_t header_len;
413:
414: array *environment; /* used to pass lighttpd internal stuff to the FastCGI/CGI apps, setenv does that */
415:
416: /* response */
417: int got_response;
418:
419: int in_joblist;
420:
421: connection_type mode;
422:
423: void **plugin_ctx; /* plugin connection specific config */
424:
425: specific_config conf; /* global connection specific config */
426: cond_cache_t *cond_cache;
427:
428: buffer *server_name;
429:
430: /* error-handler */
431: buffer *error_handler;
432: int error_handler_saved_status;
433: int in_error_handler;
434:
435: struct server_socket *srv_socket; /* reference to the server-socket */
436:
437: #ifdef USE_OPENSSL
438: SSL *ssl;
439: # ifndef OPENSSL_NO_TLSEXT
440: buffer *tlsext_server_name;
441: # endif
442: unsigned int renegotiations; /* count of SSL_CB_HANDSHAKE_START */
443: #endif
444: /* etag handling */
445: etag_flags_t etag_flags;
446:
447: int conditional_is_valid[COMP_LAST_ELEMENT];
448: } connection;
449:
450: typedef struct {
451: connection **ptr;
452: size_t size;
453: size_t used;
454: } connections;
455:
456:
457: #ifdef HAVE_IPV6
458: typedef struct {
459: int family;
460: union {
461: struct in6_addr ipv6;
462: struct in_addr ipv4;
463: } addr;
464: char b2[INET6_ADDRSTRLEN + 1];
465: time_t ts;
466: } inet_ntop_cache_type;
467: #endif
468:
469:
470: typedef struct {
471: buffer *uri;
472: time_t mtime;
473: int http_status;
474: } realpath_cache_type;
475:
476: typedef struct {
477: time_t mtime; /* the key */
478: buffer *str; /* a buffer for the string represenation */
479: } mtime_cache_type;
480:
481: typedef struct {
482: void *ptr;
483: size_t used;
484: size_t size;
485: } buffer_plugin;
486:
487: typedef struct {
488: unsigned short port;
489: buffer *bindhost;
490:
491: buffer *errorlog_file;
492: unsigned short errorlog_use_syslog;
493: buffer *breakagelog_file;
494:
495: unsigned short dont_daemonize;
496: buffer *changeroot;
497: buffer *username;
498: buffer *groupname;
499:
500: buffer *pid_file;
501:
502: buffer *event_handler;
503:
504: buffer *modules_dir;
505: buffer *network_backend;
506: array *modules;
507: array *upload_tempdirs;
508:
509: unsigned short max_worker;
510: unsigned short max_fds;
511: unsigned short max_conns;
512: unsigned int max_request_size;
513:
514: unsigned short log_request_header_on_error;
515: unsigned short log_state_handling;
516:
517: enum { STAT_CACHE_ENGINE_UNSET,
518: STAT_CACHE_ENGINE_NONE,
519: STAT_CACHE_ENGINE_SIMPLE
520: #ifdef HAVE_FAM_H
521: , STAT_CACHE_ENGINE_FAM
522: #endif
523: } stat_cache_engine;
524: unsigned short enable_cores;
525: unsigned short reject_expect_100_with_417;
526: } server_config;
527:
528: typedef struct server_socket {
529: sock_addr addr;
530: int fd;
531: int fde_ndx;
532:
533: buffer *ssl_pemfile;
534: buffer *ssl_ca_file;
535: buffer *ssl_cipher_list;
536: buffer *ssl_dh_file;
537: buffer *ssl_ec_curve;
538: unsigned short ssl_use_sslv2;
539: unsigned short ssl_use_sslv3;
540: unsigned short use_ipv6;
541: unsigned short is_ssl;
542:
543: buffer *srv_token;
544:
545: #ifdef USE_OPENSSL
546: SSL_CTX *ssl_ctx;
547: #endif
548: } server_socket;
549:
550: typedef struct {
551: server_socket **ptr;
552:
553: size_t size;
554: size_t used;
555: } server_socket_array;
556:
557: typedef struct server {
558: server_socket_array srv_sockets;
559:
560: /* the errorlog */
561: int errorlog_fd;
562: enum { ERRORLOG_FILE, ERRORLOG_FD, ERRORLOG_SYSLOG, ERRORLOG_PIPE } errorlog_mode;
563: buffer *errorlog_buf;
564:
565: fdevents *ev, *ev_ins;
566:
567: buffer_plugin plugins;
568: void *plugin_slots;
569:
570: /* counters */
571: int con_opened;
572: int con_read;
573: int con_written;
574: int con_closed;
575:
576: int ssl_is_init;
577:
578: int max_fds; /* max possible fds */
579: int cur_fds; /* currently used fds */
580: int want_fds; /* waiting fds */
581: int sockets_disabled;
582:
583: size_t max_conns;
584:
585: /* buffers */
586: buffer *parse_full_path;
587: buffer *response_header;
588: buffer *response_range;
589: buffer *tmp_buf;
590:
591: buffer *tmp_chunk_len;
592:
593: buffer *empty_string; /* is necessary for cond_match */
594:
595: buffer *cond_check_buf;
596:
597: /* caches */
598: #ifdef HAVE_IPV6
599: inet_ntop_cache_type inet_ntop_cache[INET_NTOP_CACHE_MAX];
600: #endif
601: mtime_cache_type mtime_cache[FILE_CACHE_MAX];
602:
603: array *split_vals;
604:
605: /* Timestamps */
606: time_t cur_ts;
607: time_t last_generated_date_ts;
608: time_t last_generated_debug_ts;
609: time_t startup_ts;
610:
611: char entropy[8]; /* from /dev/[u]random if possible, otherwise rand() */
612: char is_real_entropy; /* whether entropy is from /dev/[u]random */
613:
614: buffer *ts_debug_str;
615: buffer *ts_date_str;
616:
617: /* config-file */
618: array *config;
619: array *config_touched;
620:
621: array *config_context;
622: specific_config **config_storage;
623:
624: server_config srvconf;
625:
626: short int config_deprecated;
627: short int config_unsupported;
628:
629: connections *conns;
630: connections *joblist;
631: connections *fdwaitqueue;
632:
633: stat_cache *stat_cache;
634:
635: /**
636: * The status array can carry all the status information you want
637: * the key to the array is <module-prefix>.<name>
638: * and the values are counters
639: *
640: * example:
641: * fastcgi.backends = 10
642: * fastcgi.active-backends = 6
643: * fastcgi.backend.<key>.load = 24
644: * fastcgi.backend.<key>....
645: *
646: * fastcgi.backend.<key>.disconnects = ...
647: */
648: array *status;
649:
650: fdevent_handler_t event_handler;
651:
652: int (* network_backend_write)(struct server *srv, connection *con, int fd, chunkqueue *cq, off_t max_bytes);
653: #ifdef USE_OPENSSL
654: int (* network_ssl_backend_write)(struct server *srv, connection *con, SSL *ssl, chunkqueue *cq, off_t max_bytes);
655: #endif
656:
657: uid_t uid;
658: gid_t gid;
659: } server;
660:
661:
662: #endif
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