aboutsummaryrefslogtreecommitdiffstats
path: root/src/rspamd.h
blob: e085425aa3d2fbd43767d98431b89c3a30980db2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
/**
 * @file main.h
 * Definitions for main rspamd structures
 */

#ifndef RSPAMD_MAIN_H
#define RSPAMD_MAIN_H

#include "config.h"
#include "libutil/fstring.h"
#include "libutil/mem_pool.h"
#include "libutil/util.h"
#include "libutil/logger.h"
#include "libutil/http.h"
#include "libutil/upstream.h"
#include "libserver/url.h"
#include "libserver/protocol.h"
#include "libserver/buffer.h"
#include "libserver/events.h"
#include "libserver/roll_history.h"
#include "libserver/task.h"


/* Default values */
#define FIXED_CONFIG_FILE RSPAMD_CONFDIR "/rspamd.conf"
/* Time in seconds to exit for old worker */
#define SOFT_SHUTDOWN_TIME 10

/* Spam subject */
#define SPAM_SUBJECT "*** SPAM *** "

#ifdef CRLF
#undef CRLF
#undef CR
#undef LF
#endif

#define CRLF "\r\n"
#define CR '\r'
#define LF '\n'

/**
 * Worker process structure
 */
struct rspamd_worker {
	pid_t pid;                                                  /**< pid of worker									*/
	guint index;                                                /**< index number									*/
	struct rspamd_main *srv;                                    /**< pointer to server structure					*/
	GQuark type;                                                /**< process type									*/
	GHashTable *signal_events;									/**< signal events									*/
	GList *accept_events;                                       /**< socket events									*/
	struct rspamd_worker_conf *cf;                                      /**< worker config data								*/
	gpointer ctx;                                               /**< worker's specific data							*/
};

struct rspamd_worker_signal_handler {
	gint signo;
	gboolean enabled;
	struct event ev;
	struct event_base *base;
	struct rspamd_worker *worker;
	void (*post_handler)(void *ud);
	void *handler_data;
};

struct rspamd_controller_pbkdf {
	gint id;
	guint rounds;
	gsize salt_len;
	gsize key_len;
};

/**
 * Common structure representing C module context
 */
struct module_s;
struct module_ctx {
	gint (*filter)(struct rspamd_task *task);                   /**< pointer to headers process function			*/
	struct module_s *mod;										/**< module pointer									*/
	gboolean enabled;											/**< true if module is enabled in configuration		*/
};

/**
 * Module
 */
typedef struct module_s {
	const gchar *name;
	int (*module_init_func)(struct rspamd_config *cfg, struct module_ctx **ctx);
	int (*module_config_func)(struct rspamd_config *cfg);
	int (*module_reconfig_func)(struct rspamd_config *cfg);
	int (*module_attach_controller_func)(struct module_ctx *ctx,
		GHashTable *custom_commands);
} module_t;

typedef struct worker_s {
	const gchar *name;
	gpointer (*worker_init_func)(struct rspamd_config *cfg);
	void (*worker_start_func)(struct rspamd_worker *worker);
	gboolean has_socket;
	gboolean unique;
	gboolean threaded;
	gboolean killable;
	gint listen_type;
} worker_t;

struct pidfh;
struct rspamd_config;
struct tokenizer;
struct rspamd_stat_classifier;
struct rspamd_classifier_config;
struct mime_part;
struct rspamd_dns_resolver;
struct rspamd_task;

/**
 * The epoch of the fuzzy client
 */
enum rspamd_fuzzy_epoch {
	RSPAMD_FUZZY_EPOCH6 = 0, /**< pre 0.6.x */
	RSPAMD_FUZZY_EPOCH8,     /**< 0.8 till 0.9 */
	RSPAMD_FUZZY_EPOCH9,     /**< 0.9 + */
	RSPAMD_FUZZY_EPOCH10,    /**< 1.0 + encryption */
	RSPAMD_FUZZY_EPOCH_MAX
};

/**
 * Server statistics
 */
struct rspamd_stat {
	guint messages_scanned;                             /**< total number of messages scanned				*/
	guint actions_stat[METRIC_ACTION_NOACTION + 1];     /**< statistic for each action						*/
	guint connections_count;                            /**< total connections count						*/
	guint control_connections_count;                    /**< connections count to control interface			*/
	guint messages_learned;                             /**< messages learned								*/
	guint fuzzy_hashes;                                 /**< number of fuzzy hashes stored					*/
	guint fuzzy_hashes_expired;                         /**< number of fuzzy hashes expired					*/
	guint64 fuzzy_hashes_checked[RSPAMD_FUZZY_EPOCH_MAX]; /**< ammount of check requests for each epoch		*/
	guint64 fuzzy_hashes_found[RSPAMD_FUZZY_EPOCH_MAX]; /**< amount of hashes found by epoch				*/
};

/**
 * Struct that determine main server object (for logging purposes)
 */
struct rspamd_main {
	struct rspamd_config *cfg;                                  /**< pointer to config structure					*/
	pid_t pid;                                                  /**< main pid										*/
	/* Pid file structure */
	rspamd_pidfh_t *pfh;                                        /**< struct pidfh for pidfile						*/
	GQuark type;                                                /**< process type									*/
	guint ev_initialized;                                       /**< is event system is initialized					*/
	struct rspamd_stat *stat;                                   /**< pointer to statistics							*/

	rspamd_mempool_t *server_pool;                                  /**< server's memory pool							*/
	GHashTable *workers;                                        /**< workers pool indexed by pid                    */
	rspamd_logger_t *logger;
	uid_t workers_uid;                                          /**< worker's uid running to                        */
	gid_t workers_gid;                                          /**< worker's gid running to						*/
	gboolean is_privilleged;                                    /**< true if run in privilleged mode                */
	struct roll_history *history;                               /**< rolling history								*/
};

/**
 * Structure to point exception in text from processing
 */
struct process_exception {
	gsize pos;
	gsize len;
};

/**
 * Control session object
 */
struct controller_command;
struct controller_session;
typedef gboolean (*controller_func_t)(gchar **args,
	struct controller_session *session);

struct controller_session {
	struct rspamd_worker *worker;                               /**< pointer to worker structure (controller in fact) */
	enum {
		STATE_COMMAND,
		STATE_HEADER,
		STATE_LEARN,
		STATE_LEARN_SPAM_PRE,
		STATE_LEARN_SPAM,
		STATE_REPLY,
		STATE_QUIT,
		STATE_OTHER,
		STATE_WAIT,
		STATE_WEIGHTS
	} state;                                                    /**< current session state							*/
	gint sock;                                                  /**< socket descriptor								*/
	/* Access to authorized commands */
	gboolean authorized;                                        /**< whether this session is authorized				*/
	gboolean restful;                                           /**< whether this session is a restful session		*/
	GHashTable *kwargs;                                         /**< keyword arguments for restful command			*/
	struct controller_command *cmd;                             /**< real command									*/
	rspamd_mempool_t *session_pool;                             /**< memory pool for session                        */
	struct rspamd_config *cfg;                                  /**< pointer to config file							*/
	gchar *learn_rcpt;                                          /**< recipient for learning							*/
	gchar *learn_from;                                          /**< from address for learning						*/
	struct rspamd_classifier_config *learn_classifier;
	gchar *learn_symbol;                                            /**< symbol to train								*/
	double learn_multiplier;                                    /**< multiplier for learning						*/
	rspamd_io_dispatcher_t *dispatcher;                         /**< IO dispatcher object							*/
	rspamd_fstring_t *learn_buf;                                         /**< learn input									*/
	GList *parts;                                               /**< extracted mime parts							*/
	gint in_class;                                              /**< positive or negative learn						*/
	gboolean (*other_handler)(struct controller_session *session,
		rspamd_fstring_t *in);                       /**< other command handler to execute at the end of processing */
	void *other_data;                                           /**< and its data                                   */
	controller_func_t custom_handler;                           /**< custom command handler							*/
	struct rspamd_async_session * s;                             /**< async session object							*/
	struct rspamd_task *learn_task;
	struct rspamd_dns_resolver *resolver;                       /**< DNS resolver									*/
	struct event_base *ev_base;                                 /**< Event base										*/
};


/**
 * Register custom controller function
 */
void register_custom_controller_command (const gchar *name,
	controller_func_t handler,
	gboolean privilleged,
	gboolean require_message);

#define RSPAMD_PBKDF_ID_V1 1
extern const struct rspamd_controller_pbkdf pbkdf_list[];

#endif

/*
 * vi:ts=4
 */