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/*
* Copyright (C) Igor Sysoev
*/
#ifndef _NGX_MAIL_H_INCLUDED_
#define _NGX_MAIL_H_INCLUDED_
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_event.h>
#include <ngx_event_connect.h>
#if (NGX_MAIL_SSL)
#include <ngx_mail_ssl_module.h>
#endif
typedef struct {
void **main_conf;
void **srv_conf;
} ngx_mail_conf_ctx_t;
typedef struct {
in_addr_t addr;
in_port_t port;
int family;
/* server ctx */
ngx_mail_conf_ctx_t *ctx;
unsigned bind:1;
} ngx_mail_listen_t;
typedef struct {
in_addr_t addr;
ngx_mail_conf_ctx_t *ctx;
ngx_str_t addr_text;
} ngx_mail_in_addr_t;
typedef struct {
ngx_mail_in_addr_t *addrs; /* array of ngx_mail_in_addr_t */
ngx_uint_t naddrs;
} ngx_mail_in_port_t;
typedef struct {
in_port_t port;
ngx_array_t addrs; /* array of ngx_mail_conf_in_addr_t */
} ngx_mail_conf_in_port_t;
typedef struct {
in_addr_t addr;
ngx_mail_conf_ctx_t *ctx;
unsigned bind:1;
} ngx_mail_conf_in_addr_t;
typedef struct {
ngx_array_t servers; /* ngx_mail_core_srv_conf_t */
ngx_array_t listen; /* ngx_mail_listen_t */
} ngx_mail_core_main_conf_t;
#define NGX_MAIL_POP3_PROTOCOL 0
#define NGX_MAIL_IMAP_PROTOCOL 1
#define NGX_MAIL_SMTP_PROTOCOL 2
typedef struct {
ngx_msec_t timeout;
size_t imap_client_buffer_size;
ngx_uint_t protocol;
ngx_flag_t so_keepalive;
ngx_str_t pop3_capability;
ngx_str_t pop3_starttls_capability;
ngx_str_t pop3_starttls_only_capability;
ngx_str_t pop3_auth_capability;
ngx_str_t imap_capability;
ngx_str_t imap_starttls_capability;
ngx_str_t imap_starttls_only_capability;
ngx_str_t smtp_capability;
ngx_str_t smtp_starttls_capability;
ngx_str_t smtp_starttls_only_capability;
ngx_str_t server_name;
ngx_str_t smtp_server_name;
ngx_str_t smtp_greeting;
ngx_uint_t pop3_auth_methods;
ngx_uint_t imap_auth_methods;
ngx_uint_t smtp_auth_methods;
ngx_array_t pop3_capabilities;
ngx_array_t imap_capabilities;
ngx_array_t smtp_capabilities;
/* server ctx */
ngx_mail_conf_ctx_t *ctx;
} ngx_mail_core_srv_conf_t;
typedef struct {
void *(*create_main_conf)(ngx_conf_t *cf);
char *(*init_main_conf)(ngx_conf_t *cf, void *conf);
void *(*create_srv_conf)(ngx_conf_t *cf);
char *(*merge_srv_conf)(ngx_conf_t *cf, void *prev,
void *conf);
} ngx_mail_module_t;
typedef enum {
ngx_pop3_start = 0,
ngx_pop3_user,
ngx_pop3_passwd,
ngx_pop3_auth_login_username,
ngx_pop3_auth_login_password,
ngx_pop3_auth_plain,
ngx_pop3_auth_cram_md5
} ngx_po3_state_e;
typedef enum {
ngx_imap_start = 0,
ngx_imap_auth_login_username,
ngx_imap_auth_login_password,
ngx_imap_auth_plain,
ngx_imap_auth_cram_md5,
ngx_imap_login,
ngx_imap_user,
ngx_imap_passwd
} ngx_imap_state_e;
typedef enum {
ngx_smtp_start = 0,
ngx_smtp_auth_login_username,
ngx_smtp_auth_login_password,
ngx_smtp_auth_plain,
ngx_smtp_auth_cram_md5,
ngx_smtp_helo,
ngx_smtp_noxclient,
ngx_smtp_xclient
} ngx_smtp_state_e;
typedef struct {
ngx_peer_connection_t upstream;
ngx_buf_t *buffer;
} ngx_mail_proxy_ctx_t;
typedef struct {
uint32_t signature; /* "MAIL" */
ngx_connection_t *connection;
ngx_str_t out;
ngx_buf_t *buffer;
void **ctx;
void **main_conf;
void **srv_conf;
ngx_mail_proxy_ctx_t *proxy;
ngx_uint_t mail_state;
unsigned blocked:1;
unsigned quit:1;
unsigned protocol:2;
unsigned quoted:1;
unsigned backslash:1;
unsigned no_sync_literal:1;
unsigned starttls:1;
unsigned esmtp:1;
unsigned auth_method:2;
unsigned auth_wait:1;
ngx_str_t login;
ngx_str_t passwd;
ngx_str_t salt;
ngx_str_t tag;
ngx_str_t tagged_line;
ngx_str_t *addr_text;
ngx_str_t smtp_helo;
ngx_uint_t command;
ngx_array_t args;
ngx_uint_t login_attempt;
/* used to parse IMAP/POP3/SMTP command */
ngx_uint_t state;
u_char *cmd_start;
u_char *arg_start;
u_char *arg_end;
ngx_uint_t literal_len;
} ngx_mail_session_t;
typedef struct {
ngx_str_t *client;
ngx_mail_session_t *session;
} ngx_mail_log_ctx_t;
#define NGX_POP3_USER 1
#define NGX_POP3_PASS 2
#define NGX_POP3_CAPA 3
#define NGX_POP3_QUIT 4
#define NGX_POP3_NOOP 5
#define NGX_POP3_STLS 6
#define NGX_POP3_APOP 7
#define NGX_POP3_AUTH 8
#define NGX_POP3_STAT 9
#define NGX_POP3_LIST 10
#define NGX_POP3_RETR 11
#define NGX_POP3_DELE 12
#define NGX_POP3_RSET 13
#define NGX_POP3_TOP 14
#define NGX_POP3_UIDL 15
#define NGX_IMAP_LOGIN 1
#define NGX_IMAP_LOGOUT 2
#define NGX_IMAP_CAPABILITY 3
#define NGX_IMAP_NOOP 4
#define NGX_IMAP_STARTTLS 5
#define NGX_IMAP_NEXT 6
#define NGX_IMAP_AUTHENTICATE 7
#define NGX_SMTP_HELO 1
#define NGX_SMTP_EHLO 2
#define NGX_SMTP_AUTH 3
#define NGX_SMTP_QUIT 4
#define NGX_SMTP_NOOP 5
#define NGX_SMTP_MAIL 6
#define NGX_SMTP_RSET 7
#define NGX_SMTP_RCPT 8
#define NGX_SMTP_DATA 9
#define NGX_SMTP_VRFY 10
#define NGX_SMTP_EXPN 11
#define NGX_SMTP_HELP 12
#define NGX_SMTP_STARTTLS 13
#define NGX_MAIL_AUTH_PLAIN 0
#define NGX_MAIL_AUTH_LOGIN 1
#define NGX_MAIL_AUTH_APOP 2
#define NGX_MAIL_AUTH_CRAM_MD5 3
#define NGX_MAIL_AUTH_PLAIN_ENABLED 0x0002
#define NGX_MAIL_AUTH_LOGIN_ENABLED 0x0004
#define NGX_MAIL_AUTH_APOP_ENABLED 0x0008
#define NGX_MAIL_AUTH_CRAM_MD5_ENABLED 0x0010
#define NGX_MAIL_PARSE_INVALID_COMMAND 20
#define NGX_MAIL_MODULE 0x4C49414D /* "MAIL" */
#define NGX_MAIL_MAIN_CONF 0x02000000
#define NGX_MAIL_SRV_CONF 0x04000000
#define NGX_MAIL_MAIN_CONF_OFFSET offsetof(ngx_mail_conf_ctx_t, main_conf)
#define NGX_MAIL_SRV_CONF_OFFSET offsetof(ngx_mail_conf_ctx_t, srv_conf)
#define ngx_mail_get_module_ctx(s, module) (s)->ctx[module.ctx_index]
#define ngx_mail_set_ctx(s, c, module) s->ctx[module.ctx_index] = c;
#define ngx_mail_delete_ctx(s, module) s->ctx[module.ctx_index] = NULL;
#define ngx_mail_get_module_main_conf(s, module) \
(s)->main_conf[module.ctx_index]
#define ngx_mail_get_module_srv_conf(s, module) (s)->srv_conf[module.ctx_index]
#define ngx_mail_conf_get_module_main_conf(cf, module) \
((ngx_mail_conf_ctx_t *) cf->ctx)->main_conf[module.ctx_index]
#define ngx_mail_conf_get_module_srv_conf(cf, module) \
((ngx_mail_conf_ctx_t *) cf->ctx)->srv_conf[module.ctx_index]
void ngx_mail_init_connection(ngx_connection_t *c);
void ngx_mail_send(ngx_event_t *wev);
void ngx_pop3_auth_state(ngx_event_t *rev);
void ngx_imap_auth_state(ngx_event_t *rev);
void ngx_smtp_auth_state(ngx_event_t *rev);
void ngx_mail_close_connection(ngx_connection_t *c);
void ngx_mail_session_internal_server_error(ngx_mail_session_t *s);
ngx_int_t ngx_pop3_parse_command(ngx_mail_session_t *s);
ngx_int_t ngx_imap_parse_command(ngx_mail_session_t *s);
ngx_int_t ngx_smtp_parse_command(ngx_mail_session_t *s);
/* STUB */
void ngx_mail_proxy_init(ngx_mail_session_t *s, ngx_peer_addr_t *peer);
void ngx_mail_auth_http_init(ngx_mail_session_t *s);
/**/
extern ngx_uint_t ngx_mail_max_module;
extern ngx_module_t ngx_mail_core_module;
#endif /* _NGX_MAIL_H_INCLUDED_ */
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