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