2 ce062d50 2019-08-21 martijn * Copyright (c) 2019 Martijn van Duren <martijn@openbsd.org>
4 ce062d50 2019-08-21 martijn * Permission to use, copy, modify, and distribute this software for any
5 ce062d50 2019-08-21 martijn * purpose with or without fee is hereby granted, provided that the above
6 ce062d50 2019-08-21 martijn * copyright notice and this permission notice appear in all copies.
8 ce062d50 2019-08-21 martijn * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 ce062d50 2019-08-21 martijn * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 ce062d50 2019-08-21 martijn * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 ce062d50 2019-08-21 martijn * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 ce062d50 2019-08-21 martijn * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 ce062d50 2019-08-21 martijn * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 ce062d50 2019-08-21 martijn * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 078ff8cf 2019-08-21 martijn #include <sys/socket.h>
18 6258daeb 2019-11-14 martijn #ifndef __dead
19 6258daeb 2019-11-14 martijn #define __dead __attribute__((__noreturn__))
21 6258daeb 2019-11-14 martijn #ifndef __unused
22 6258daeb 2019-11-14 martijn #define __unused __attribute__((unused))
25 ce062d50 2019-08-21 martijn enum osmtpd_status {
26 ce062d50 2019-08-21 martijn OSMTPD_STATUS_OK,
27 ce062d50 2019-08-21 martijn OSMTPD_STATUS_TEMPFAIL,
28 ce062d50 2019-08-21 martijn OSMTPD_STATUS_PERMFAIL
31 ce062d50 2019-08-21 martijn enum osmtpd_type {
32 ce062d50 2019-08-21 martijn OSMTPD_TYPE_FILTER,
33 ce062d50 2019-08-21 martijn OSMTPD_TYPE_REPORT
36 ce062d50 2019-08-21 martijn enum osmtpd_phase {
37 ce062d50 2019-08-21 martijn OSMTPD_PHASE_CONNECT,
38 ce062d50 2019-08-21 martijn OSMTPD_PHASE_HELO,
39 ce062d50 2019-08-21 martijn OSMTPD_PHASE_EHLO,
40 ce062d50 2019-08-21 martijn OSMTPD_PHASE_STARTTLS,
41 ce062d50 2019-08-21 martijn OSMTPD_PHASE_AUTH,
42 ce062d50 2019-08-21 martijn OSMTPD_PHASE_MAIL_FROM,
43 ce062d50 2019-08-21 martijn OSMTPD_PHASE_RCPT_TO,
44 ce062d50 2019-08-21 martijn OSMTPD_PHASE_DATA,
45 ce062d50 2019-08-21 martijn OSMTPD_PHASE_DATA_LINE,
46 ce062d50 2019-08-21 martijn OSMTPD_PHASE_RSET,
47 ce062d50 2019-08-21 martijn OSMTPD_PHASE_QUIT,
48 ce062d50 2019-08-21 martijn OSMTPD_PHASE_NOOP,
49 ce062d50 2019-08-21 martijn OSMTPD_PHASE_HELP,
50 ce062d50 2019-08-21 martijn OSMTPD_PHASE_WIZ,
51 ce062d50 2019-08-21 martijn OSMTPD_PHASE_COMMIT,
52 ce062d50 2019-08-21 martijn OSMTPD_PHASE_LINK_CONNECT,
53 ce062d50 2019-08-21 martijn OSMTPD_PHASE_LINK_DISCONNECT,
54 a05d5c54 2019-08-28 martijn OSMTPD_PHASE_LINK_GREETING,
55 ce062d50 2019-08-21 martijn OSMTPD_PHASE_LINK_IDENTIFY,
56 ce062d50 2019-08-21 martijn OSMTPD_PHASE_LINK_TLS,
57 ce062d50 2019-08-21 martijn OSMTPD_PHASE_TX_BEGIN,
58 ce062d50 2019-08-21 martijn OSMTPD_PHASE_TX_MAIL,
59 ce062d50 2019-08-21 martijn OSMTPD_PHASE_TX_RCPT,
60 ce062d50 2019-08-21 martijn OSMTPD_PHASE_TX_ENVELOPE,
61 ce062d50 2019-08-21 martijn OSMTPD_PHASE_TX_DATA,
62 ce062d50 2019-08-21 martijn OSMTPD_PHASE_TX_COMMIT,
63 ce062d50 2019-08-21 martijn OSMTPD_PHASE_TX_ROLLBACK,
64 ce062d50 2019-08-21 martijn OSMTPD_PHASE_PROTOCOL_CLIENT,
65 ce062d50 2019-08-21 martijn OSMTPD_PHASE_PROTOCOL_SERVER,
66 ce062d50 2019-08-21 martijn OSMTPD_PHASE_FILTER_RESPONSE,
67 ce062d50 2019-08-21 martijn OSMTPD_PHASE_TIMEOUT
70 ce062d50 2019-08-21 martijn #define OSMTPD_NEED_SRC 1 << 0
71 ce062d50 2019-08-21 martijn #define OSMTPD_NEED_DST 1 << 1
72 ce062d50 2019-08-21 martijn #define OSMTPD_NEED_RDNS 1 << 2
73 4c34777d 2019-08-22 martijn #define OSMTPD_NEED_FCRDNS 1 << 3
74 0fb4c799 2019-09-05 martijn #define OSMTPD_NEED_IDENTITY 1 << 4
75 0fb4c799 2019-09-05 martijn #define OSMTPD_NEED_GREETING 1 << 5
76 a05d5c54 2019-08-28 martijn #define OSMTPD_NEED_CIPHERS 1 << 6
77 a05d5c54 2019-08-28 martijn #define OSMTPD_NEED_MSGID 1 << 7
78 a05d5c54 2019-08-28 martijn #define OSMTPD_NEED_MAILFROM 1 << 8
79 a05d5c54 2019-08-28 martijn #define OSMTPD_NEED_RCPTTO 1 << 9
80 a05d5c54 2019-08-28 martijn #define OSMTPD_NEED_EVPID 1 << 10
82 ce062d50 2019-08-21 martijn struct osmtpd_ctx {
83 ce062d50 2019-08-21 martijn enum osmtpd_type type;
84 4c34777d 2019-08-22 martijn enum osmtpd_phase phase;
85 ce062d50 2019-08-21 martijn int version_major;
86 ce062d50 2019-08-21 martijn int version_minor;
87 ce062d50 2019-08-21 martijn struct timespec tm;
88 ce062d50 2019-08-21 martijn int incoming;
89 ce062d50 2019-08-21 martijn uint64_t reqid;
90 ce062d50 2019-08-21 martijn uint64_t token;
91 ce062d50 2019-08-21 martijn struct sockaddr_storage src;
92 ce062d50 2019-08-21 martijn struct sockaddr_storage dst;
93 ce062d50 2019-08-21 martijn char *rdns;
94 30f1cbac 2019-08-22 martijn enum osmtpd_status fcrdns;
95 0fb4c799 2019-09-05 martijn /* HELO/EHLO identity */
96 0fb4c799 2019-09-05 martijn char *identity;
97 0fb4c799 2019-09-05 martijn struct greeting {
98 0fb4c799 2019-09-05 martijn char *identity;
99 0fb4c799 2019-09-05 martijn /* textstring not supplied by smtpd */
100 0fb4c799 2019-09-05 martijn } greeting;
101 ce062d50 2019-08-21 martijn char *ciphers;
102 ce062d50 2019-08-21 martijn uint32_t msgid;
103 ce062d50 2019-08-21 martijn char *mailfrom;
104 ce062d50 2019-08-21 martijn char **rcptto;
105 ce062d50 2019-08-21 martijn uint64_t evpid;
106 912d0ff2 2019-08-22 martijn void *local_session;
107 912d0ff2 2019-08-22 martijn void *local_message;
110 2029083f 2020-10-15 martijn void osmtpd_register_conf(void (*)(const char *, const char *));
111 ce062d50 2019-08-21 martijn void osmtpd_register_filter_connect(void (*)(struct osmtpd_ctx *, const char *,
112 ce062d50 2019-08-21 martijn struct sockaddr_storage *));
113 ce062d50 2019-08-21 martijn void osmtpd_register_filter_helo(void (*)(struct osmtpd_ctx *, const char *));
114 ce062d50 2019-08-21 martijn void osmtpd_register_filter_ehlo(void (*)(struct osmtpd_ctx *, const char *));
115 ce062d50 2019-08-21 martijn void osmtpd_register_filter_starttls(void (*)(struct osmtpd_ctx *));
116 ce062d50 2019-08-21 martijn void osmtpd_register_filter_auth(void (*)(struct osmtpd_ctx *, const char *));
117 ce062d50 2019-08-21 martijn void osmtpd_register_filter_mailfrom(void (*)(struct osmtpd_ctx *,
118 ce062d50 2019-08-21 martijn const char *));
119 ce062d50 2019-08-21 martijn void osmtpd_register_filter_rcptto(void (*)(struct osmtpd_ctx *, const char *));
120 ce062d50 2019-08-21 martijn void osmtpd_register_filter_data(void (*)(struct osmtpd_ctx *));
121 ce062d50 2019-08-21 martijn void osmtpd_register_filter_dataline(void (*)(struct osmtpd_ctx *,
122 ce062d50 2019-08-21 martijn const char *));
123 ce062d50 2019-08-21 martijn void osmtpd_register_filter_rset(void (*)(struct osmtpd_ctx *));
124 ce062d50 2019-08-21 martijn void osmtpd_register_filter_quit(void (*)(struct osmtpd_ctx *));
125 ce062d50 2019-08-21 martijn void osmtpd_register_filter_noop(void (*)(struct osmtpd_ctx *));
126 ce062d50 2019-08-21 martijn void osmtpd_register_filter_help(void (*)(struct osmtpd_ctx *));
127 ce062d50 2019-08-21 martijn void osmtpd_register_filter_wiz(void (*)(struct osmtpd_ctx *));
128 ce062d50 2019-08-21 martijn void osmtpd_register_filter_commit(void (*)(struct osmtpd_ctx *));
129 ce062d50 2019-08-21 martijn void osmtpd_register_report_connect(int, void (*)(struct osmtpd_ctx *,
130 30f1cbac 2019-08-22 martijn const char *, enum osmtpd_status, struct sockaddr_storage *,
131 ce062d50 2019-08-21 martijn struct sockaddr_storage *));
132 ce062d50 2019-08-21 martijn void osmtpd_register_report_disconnect(int, void (*)(struct osmtpd_ctx *));
133 a05d5c54 2019-08-28 martijn void osmtpd_register_report_greeting(int, void (*)(struct osmtpd_ctx *,
134 a05d5c54 2019-08-28 martijn const char *));
135 ce062d50 2019-08-21 martijn void osmtpd_register_report_identify(int, void (*)(struct osmtpd_ctx *,
136 ce062d50 2019-08-21 martijn const char *));
137 ce062d50 2019-08-21 martijn void osmtpd_register_report_tls(int, void (*)(struct osmtpd_ctx *,
138 ce062d50 2019-08-21 martijn const char *));
139 ce062d50 2019-08-21 martijn void osmtpd_register_report_begin(int, void (*)(struct osmtpd_ctx *, uint32_t));
140 ce062d50 2019-08-21 martijn void osmtpd_register_report_mail(int, void (*)(struct osmtpd_ctx *, uint32_t,
141 ce062d50 2019-08-21 martijn const char *, enum osmtpd_status));
142 ce062d50 2019-08-21 martijn void osmtpd_register_report_rcpt(int, void (*)(struct osmtpd_ctx *, uint32_t,
143 ce062d50 2019-08-21 martijn const char *, enum osmtpd_status));
144 ce062d50 2019-08-21 martijn void osmtpd_register_report_envelope(int, void (*)(struct osmtpd_ctx *, uint32_t,
145 ce062d50 2019-08-21 martijn uint64_t));
146 ce062d50 2019-08-21 martijn void osmtpd_register_report_data(int, void (*)(struct osmtpd_ctx *, uint32_t,
147 ce062d50 2019-08-21 martijn enum osmtpd_status));
148 ce062d50 2019-08-21 martijn void osmtpd_register_report_commit(int, void (*)(struct osmtpd_ctx *, uint32_t,
149 ce062d50 2019-08-21 martijn size_t));
150 ce062d50 2019-08-21 martijn void osmtpd_register_report_rollback(int, void (*)(struct osmtpd_ctx *,
151 ce062d50 2019-08-21 martijn uint32_t));
152 ce062d50 2019-08-21 martijn void osmtpd_register_report_client(int, void (*)(struct osmtpd_ctx *,
153 ce062d50 2019-08-21 martijn const char *));
154 ce062d50 2019-08-21 martijn void osmtpd_register_report_server(int, void (*)(struct osmtpd_ctx *,
155 ce062d50 2019-08-21 martijn const char *));
156 ce062d50 2019-08-21 martijn void osmtpd_register_report_response(int, void (*)(struct osmtpd_ctx *,
157 ce062d50 2019-08-21 martijn const char *));
158 ce062d50 2019-08-21 martijn void osmtpd_register_report_timeout(int, void (*)(struct osmtpd_ctx *));
159 912d0ff2 2019-08-22 martijn void osmtpd_local_session(void *(*)(struct osmtpd_ctx *),
160 ce062d50 2019-08-21 martijn void (*)(struct osmtpd_ctx *, void *));
161 912d0ff2 2019-08-22 martijn void osmtpd_local_message(void *(*)(struct osmtpd_ctx *),
162 912d0ff2 2019-08-22 martijn void (*)(struct osmtpd_ctx *, void *));
163 09816288 2019-08-22 martijn void osmtpd_need(int);
165 ce062d50 2019-08-21 martijn void osmtpd_filter_proceed(struct osmtpd_ctx *);
166 ce062d50 2019-08-21 martijn void osmtpd_filter_reject(struct osmtpd_ctx *, int, const char *, ...)
167 ce062d50 2019-08-21 martijn __attribute__((__format__ (printf, 3, 4)));
168 000aebbc 2019-08-23 martijn void osmtpd_filter_reject_enh(struct osmtpd_ctx *, int, int, int, int,
169 000aebbc 2019-08-23 martijn const char *, ...)
170 000aebbc 2019-08-23 martijn __attribute__((__format__ (printf, 6, 7)));
171 ce062d50 2019-08-21 martijn void osmtpd_filter_disconnect(struct osmtpd_ctx *, const char *, ...)
172 ce062d50 2019-08-21 martijn __attribute__((__format__ (printf, 2, 3)));
173 000aebbc 2019-08-23 martijn void osmtpd_filter_disconnect_enh(struct osmtpd_ctx *, int, int, int,
174 000aebbc 2019-08-23 martijn const char *, ...)
175 000aebbc 2019-08-23 martijn __attribute__((__format__ (printf, 5, 6)));
176 4fb72612 2019-08-21 martijn void osmtpd_filter_rewrite(struct osmtpd_ctx *, const char *, ...)
177 4fb72612 2019-08-21 martijn __attribute__((__format__ (printf, 2, 3)));
178 ce062d50 2019-08-21 martijn void osmtpd_filter_dataline(struct osmtpd_ctx *, const char *, ...)
179 ce062d50 2019-08-21 martijn __attribute__((__format__ (printf, 2, 3)));
180 ce062d50 2019-08-21 martijn void osmtpd_run(void);
181 27dd1f3b 2019-08-22 martijn __dead void osmtpd_err(int eval, const char *fmt, ...);
182 27dd1f3b 2019-08-22 martijn __dead void osmtpd_errx(int eval, const char *fmt, ...);
