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/* $OpenBSD: envelope.c,v 1.37 2017/08/06 08:35:14 gilles Exp $ */ |
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/* |
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* Copyright (c) 2013 Eric Faurot <eric@openbsd.org> |
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* Copyright (c) 2011-2013 Gilles Chehade <gilles@poolp.org> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#include <sys/types.h> |
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#include <sys/queue.h> |
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#include <sys/tree.h> |
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#include <sys/socket.h> |
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#include <sys/stat.h> |
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#include <netinet/in.h> |
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#include <arpa/inet.h> |
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#include <ctype.h> |
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#include <err.h> |
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#include <errno.h> |
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#include <event.h> |
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#include <fcntl.h> |
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#include <imsg.h> |
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#include <inttypes.h> |
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#include <libgen.h> |
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#include <pwd.h> |
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#include <limits.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <time.h> |
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#include <unistd.h> |
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#include "smtpd.h" |
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#include "log.h" |
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static int envelope_ascii_load(struct envelope *, struct dict *); |
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static void envelope_ascii_dump(const struct envelope *, char **, size_t *, |
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const char *); |
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void |
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envelope_set_errormsg(struct envelope *e, char *fmt, ...) |
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{ |
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int ret; |
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va_list ap; |
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va_start(ap, fmt); |
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ret = vsnprintf(e->errorline, sizeof(e->errorline), fmt, ap); |
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va_end(ap); |
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/* this should not happen */ |
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if (ret == -1) |
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err(1, "vsnprintf"); |
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if ((size_t)ret >= sizeof(e->errorline)) |
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(void)strlcpy(e->errorline + (sizeof(e->errorline) - 4), |
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"...", 4); |
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} |
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void |
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envelope_set_esc_class(struct envelope *e, enum enhanced_status_class class) |
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{ |
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e->esc_class = class; |
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} |
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void |
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envelope_set_esc_code(struct envelope *e, enum enhanced_status_code code) |
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{ |
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e->esc_code = code; |
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} |
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static int |
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envelope_buffer_to_dict(struct dict *d, const char *ibuf, size_t buflen) |
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{ |
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static char lbuf[sizeof(struct envelope)]; |
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size_t len; |
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char *buf, *field, *nextline; |
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memset(lbuf, 0, sizeof lbuf); |
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if (strlcpy(lbuf, ibuf, sizeof lbuf) >= sizeof lbuf) |
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goto err; |
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buf = lbuf; |
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while (buflen > 0) { |
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len = strcspn(buf, "\n"); |
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buf[len] = '\0'; |
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nextline = buf + len + 1; |
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buflen -= (nextline - buf); |
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field = buf; |
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while (*buf && (isalnum((unsigned char)*buf) || *buf == '-')) |
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buf++; |
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if (!*buf) |
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goto err; |
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107 |
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/* skip whitespaces before separator */ |
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while (*buf && isspace((unsigned char)*buf)) |
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*buf++ = 0; |
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/* we *want* ':' */ |
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if (*buf != ':') |
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goto err; |
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*buf++ = 0; |
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/* skip whitespaces after separator */ |
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while (*buf && isspace((unsigned char)*buf)) |
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*buf++ = 0; |
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dict_set(d, field, buf); |
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buf = nextline; |
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} |
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return (1); |
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err: |
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return (0); |
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} |
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int |
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envelope_load_buffer(struct envelope *ep, const char *ibuf, size_t buflen) |
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{ |
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struct dict d; |
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const char *val, *errstr; |
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long long version; |
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int ret = 0; |
136 |
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137 |
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dict_init(&d); |
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if (!envelope_buffer_to_dict(&d, ibuf, buflen)) { |
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log_debug("debug: cannot parse envelope to dict"); |
140 |
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goto end; |
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} |
142 |
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143 |
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val = dict_get(&d, "version"); |
144 |
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if (val == NULL) { |
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log_debug("debug: envelope version not found"); |
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goto end; |
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} |
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version = strtonum(val, 1, 64, &errstr); |
149 |
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if (errstr) { |
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log_debug("debug: cannot parse envelope version: %s", val); |
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goto end; |
152 |
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} |
153 |
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154 |
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if (version != 2) { |
155 |
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log_debug("debug: bad envelope version %lld", version); |
156 |
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goto end; |
157 |
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} |
158 |
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159 |
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memset(ep, 0, sizeof *ep); |
160 |
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ret = envelope_ascii_load(ep, &d); |
161 |
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if (ret) |
162 |
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ep->version = SMTPD_ENVELOPE_VERSION; |
163 |
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end: |
164 |
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while (dict_poproot(&d, NULL)) |
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; |
166 |
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return (ret); |
167 |
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} |
168 |
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169 |
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int |
170 |
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envelope_dump_buffer(const struct envelope *ep, char *dest, size_t len) |
171 |
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{ |
172 |
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char *p = dest; |
173 |
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174 |
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envelope_ascii_dump(ep, &dest, &len, "version"); |
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envelope_ascii_dump(ep, &dest, &len, "tag"); |
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envelope_ascii_dump(ep, &dest, &len, "type"); |
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envelope_ascii_dump(ep, &dest, &len, "smtpname"); |
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envelope_ascii_dump(ep, &dest, &len, "helo"); |
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envelope_ascii_dump(ep, &dest, &len, "hostname"); |
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envelope_ascii_dump(ep, &dest, &len, "errorline"); |
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envelope_ascii_dump(ep, &dest, &len, "sockaddr"); |
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envelope_ascii_dump(ep, &dest, &len, "sender"); |
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envelope_ascii_dump(ep, &dest, &len, "rcpt"); |
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envelope_ascii_dump(ep, &dest, &len, "dest"); |
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envelope_ascii_dump(ep, &dest, &len, "ctime"); |
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envelope_ascii_dump(ep, &dest, &len, "last-try"); |
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envelope_ascii_dump(ep, &dest, &len, "last-bounce"); |
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envelope_ascii_dump(ep, &dest, &len, "expire"); |
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envelope_ascii_dump(ep, &dest, &len, "retry"); |
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envelope_ascii_dump(ep, &dest, &len, "flags"); |
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envelope_ascii_dump(ep, &dest, &len, "dsn-notify"); |
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envelope_ascii_dump(ep, &dest, &len, "dsn-ret"); |
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envelope_ascii_dump(ep, &dest, &len, "dsn-envid"); |
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envelope_ascii_dump(ep, &dest, &len, "dsn-orcpt"); |
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envelope_ascii_dump(ep, &dest, &len, "esc-class"); |
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envelope_ascii_dump(ep, &dest, &len, "esc-code"); |
197 |
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198 |
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switch (ep->type) { |
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case D_MDA: |
200 |
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envelope_ascii_dump(ep, &dest, &len, "mda-buffer"); |
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envelope_ascii_dump(ep, &dest, &len, "mda-method"); |
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envelope_ascii_dump(ep, &dest, &len, "mda-user"); |
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envelope_ascii_dump(ep, &dest, &len, "mda-usertable"); |
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envelope_ascii_dump(ep, &dest, &len, "mda-delivery-user"); |
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break; |
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case D_MTA: |
207 |
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envelope_ascii_dump(ep, &dest, &len, "mta-relay"); |
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envelope_ascii_dump(ep, &dest, &len, "mta-relay-auth"); |
209 |
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envelope_ascii_dump(ep, &dest, &len, "mta-relay-cert"); |
210 |
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envelope_ascii_dump(ep, &dest, &len, "mta-relay-ca"); |
211 |
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envelope_ascii_dump(ep, &dest, &len, "mta-relay-flags"); |
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envelope_ascii_dump(ep, &dest, &len, "mta-relay-heloname"); |
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envelope_ascii_dump(ep, &dest, &len, "mta-relay-helotable"); |
214 |
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envelope_ascii_dump(ep, &dest, &len, "mta-relay-source"); |
215 |
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break; |
216 |
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case D_BOUNCE: |
217 |
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envelope_ascii_dump(ep, &dest, &len, "bounce-expire"); |
218 |
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envelope_ascii_dump(ep, &dest, &len, "bounce-delay"); |
219 |
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envelope_ascii_dump(ep, &dest, &len, "bounce-type"); |
220 |
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break; |
221 |
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default: |
222 |
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return (0); |
223 |
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} |
224 |
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225 |
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if (dest == NULL) |
226 |
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return (0); |
227 |
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228 |
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return (dest - p); |
229 |
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} |
230 |
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231 |
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static int |
232 |
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ascii_load_uint8(uint8_t *dest, char *buf) |
233 |
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{ |
234 |
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const char *errstr; |
235 |
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236 |
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*dest = strtonum(buf, 0, 0xff, &errstr); |
237 |
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if (errstr) |
238 |
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return 0; |
239 |
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return 1; |
240 |
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} |
241 |
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242 |
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static int |
243 |
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ascii_load_uint16(uint16_t *dest, char *buf) |
244 |
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{ |
245 |
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const char *errstr; |
246 |
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247 |
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*dest = strtonum(buf, 0, 0xffff, &errstr); |
248 |
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if (errstr) |
249 |
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return 0; |
250 |
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return 1; |
251 |
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} |
252 |
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253 |
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static int |
254 |
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ascii_load_uint32(uint32_t *dest, char *buf) |
255 |
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{ |
256 |
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const char *errstr; |
257 |
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258 |
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*dest = strtonum(buf, 0, 0xffffffff, &errstr); |
259 |
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if (errstr) |
260 |
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return 0; |
261 |
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return 1; |
262 |
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} |
263 |
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|
264 |
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static int |
265 |
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ascii_load_time(time_t *dest, char *buf) |
266 |
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{ |
267 |
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const char *errstr; |
268 |
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269 |
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*dest = strtonum(buf, 0, LLONG_MAX, &errstr); |
270 |
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if (errstr) |
271 |
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return 0; |
272 |
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return 1; |
273 |
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} |
274 |
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|
275 |
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static int |
276 |
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ascii_load_type(enum delivery_type *dest, char *buf) |
277 |
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{ |
278 |
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if (strcasecmp(buf, "mda") == 0) |
279 |
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*dest = D_MDA; |
280 |
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else if (strcasecmp(buf, "mta") == 0) |
281 |
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*dest = D_MTA; |
282 |
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else if (strcasecmp(buf, "bounce") == 0) |
283 |
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*dest = D_BOUNCE; |
284 |
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else |
285 |
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return 0; |
286 |
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return 1; |
287 |
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} |
288 |
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|
289 |
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static int |
290 |
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ascii_load_string(char *dest, char *buf, size_t len) |
291 |
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{ |
292 |
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if (strlcpy(dest, buf, len) >= len) |
293 |
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return 0; |
294 |
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return 1; |
295 |
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} |
296 |
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|
297 |
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static int |
298 |
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ascii_load_sockaddr(struct sockaddr_storage *ss, char *buf) |
299 |
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{ |
300 |
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struct sockaddr_in6 ssin6; |
301 |
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struct sockaddr_in ssin; |
302 |
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303 |
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memset(&ssin, 0, sizeof ssin); |
304 |
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memset(&ssin6, 0, sizeof ssin6); |
305 |
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|
306 |
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if (!strcmp("local", buf)) { |
307 |
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ss->ss_family = AF_LOCAL; |
308 |
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} |
309 |
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else if (strncasecmp("IPv6:", buf, 5) == 0) { |
310 |
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if (inet_pton(AF_INET6, buf + 5, &ssin6.sin6_addr) != 1) |
311 |
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return 0; |
312 |
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ssin6.sin6_family = AF_INET6; |
313 |
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memcpy(ss, &ssin6, sizeof(ssin6)); |
314 |
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ss->ss_len = sizeof(struct sockaddr_in6); |
315 |
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} |
316 |
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else { |
317 |
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if (inet_pton(AF_INET, buf, &ssin.sin_addr) != 1) |
318 |
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return 0; |
319 |
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ssin.sin_family = AF_INET; |
320 |
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memcpy(ss, &ssin, sizeof(ssin)); |
321 |
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ss->ss_len = sizeof(struct sockaddr_in); |
322 |
|
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} |
323 |
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return 1; |
324 |
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} |
325 |
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|
326 |
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static int |
327 |
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ascii_load_mda_method(enum action_type *dest, char *buf) |
328 |
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{ |
329 |
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if (strcasecmp(buf, "mbox") == 0) |
330 |
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*dest = A_MBOX; |
331 |
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else if (strcasecmp(buf, "maildir") == 0) |
332 |
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*dest = A_MAILDIR; |
333 |
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else if (strcasecmp(buf, "filename") == 0) |
334 |
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*dest = A_FILENAME; |
335 |
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else if (strcasecmp(buf, "mda") == 0) |
336 |
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*dest = A_MDA; |
337 |
|
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else if (strcasecmp(buf, "lmtp") == 0) |
338 |
|
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*dest = A_LMTP; |
339 |
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else |
340 |
|
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return 0; |
341 |
|
|
return 1; |
342 |
|
|
} |
343 |
|
|
|
344 |
|
|
static int |
345 |
|
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ascii_load_mailaddr(struct mailaddr *dest, char *buf) |
346 |
|
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{ |
347 |
|
|
if (!text_to_mailaddr(dest, buf)) |
348 |
|
|
return 0; |
349 |
|
|
return 1; |
350 |
|
|
} |
351 |
|
|
|
352 |
|
|
static int |
353 |
|
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ascii_load_flags(enum envelope_flags *dest, char *buf) |
354 |
|
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{ |
355 |
|
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char *flag; |
356 |
|
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|
357 |
|
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while ((flag = strsep(&buf, " ,|")) != NULL) { |
358 |
|
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if (strcasecmp(flag, "authenticated") == 0) |
359 |
|
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*dest |= EF_AUTHENTICATED; |
360 |
|
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else if (strcasecmp(flag, "enqueued") == 0) |
361 |
|
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; |
362 |
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else if (strcasecmp(flag, "bounce") == 0) |
363 |
|
|
*dest |= EF_BOUNCE; |
364 |
|
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else if (strcasecmp(flag, "internal") == 0) |
365 |
|
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*dest |= EF_INTERNAL; |
366 |
|
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else |
367 |
|
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return 0; |
368 |
|
|
} |
369 |
|
|
return 1; |
370 |
|
|
} |
371 |
|
|
|
372 |
|
|
static int |
373 |
|
|
ascii_load_mta_relay_url(struct relayhost *relay, char *buf) |
374 |
|
|
{ |
375 |
|
|
if (!text_to_relayhost(relay, buf)) |
376 |
|
|
return 0; |
377 |
|
|
return 1; |
378 |
|
|
} |
379 |
|
|
|
380 |
|
|
static int |
381 |
|
|
ascii_load_mta_relay_flags(uint16_t *dest, char *buf) |
382 |
|
|
{ |
383 |
|
|
char *flag; |
384 |
|
|
|
385 |
|
|
while ((flag = strsep(&buf, " ,|")) != NULL) { |
386 |
|
|
if (strcasecmp(flag, "verify") == 0) |
387 |
|
|
*dest |= F_TLS_VERIFY; |
388 |
|
|
else if (strcasecmp(flag, "tls") == 0) |
389 |
|
|
*dest |= F_STARTTLS; |
390 |
|
|
else |
391 |
|
|
return 0; |
392 |
|
|
} |
393 |
|
|
|
394 |
|
|
return 1; |
395 |
|
|
} |
396 |
|
|
|
397 |
|
|
static int |
398 |
|
|
ascii_load_bounce_type(enum bounce_type *dest, char *buf) |
399 |
|
|
{ |
400 |
|
|
if (strcasecmp(buf, "error") == 0) |
401 |
|
|
*dest = B_ERROR; |
402 |
|
|
else if (strcasecmp(buf, "warn") == 0) |
403 |
|
|
*dest = B_WARNING; |
404 |
|
|
else if (strcasecmp(buf, "dsn") == 0) |
405 |
|
|
*dest = B_DSN; |
406 |
|
|
else |
407 |
|
|
return 0; |
408 |
|
|
return 1; |
409 |
|
|
} |
410 |
|
|
|
411 |
|
|
static int |
412 |
|
|
ascii_load_dsn_ret(enum dsn_ret *ret, char *buf) |
413 |
|
|
{ |
414 |
|
|
if (strcasecmp(buf, "HDRS") == 0) |
415 |
|
|
*ret = DSN_RETHDRS; |
416 |
|
|
else if (strcasecmp(buf, "FULL") == 0) |
417 |
|
|
*ret = DSN_RETFULL; |
418 |
|
|
else |
419 |
|
|
return 0; |
420 |
|
|
return 1; |
421 |
|
|
} |
422 |
|
|
|
423 |
|
|
static int |
424 |
|
|
ascii_load_field(const char *field, struct envelope *ep, char *buf) |
425 |
|
|
{ |
426 |
|
|
if (strcasecmp("bounce-delay", field) == 0) |
427 |
|
|
return ascii_load_time(&ep->agent.bounce.delay, buf); |
428 |
|
|
|
429 |
|
|
if (strcasecmp("bounce-expire", field) == 0) |
430 |
|
|
return ascii_load_time(&ep->agent.bounce.expire, buf); |
431 |
|
|
|
432 |
|
|
if (strcasecmp("bounce-type", field) == 0) |
433 |
|
|
return ascii_load_bounce_type(&ep->agent.bounce.type, buf); |
434 |
|
|
|
435 |
|
|
if (strcasecmp("ctime", field) == 0) |
436 |
|
|
return ascii_load_time(&ep->creation, buf); |
437 |
|
|
|
438 |
|
|
if (strcasecmp("dest", field) == 0) |
439 |
|
|
return ascii_load_mailaddr(&ep->dest, buf); |
440 |
|
|
|
441 |
|
|
if (strcasecmp("errorline", field) == 0) |
442 |
|
|
return ascii_load_string(ep->errorline, buf, |
443 |
|
|
sizeof ep->errorline); |
444 |
|
|
|
445 |
|
|
if (strcasecmp("expire", field) == 0) |
446 |
|
|
return ascii_load_time(&ep->expire, buf); |
447 |
|
|
|
448 |
|
|
if (strcasecmp("flags", field) == 0) |
449 |
|
|
return ascii_load_flags(&ep->flags, buf); |
450 |
|
|
|
451 |
|
|
if (strcasecmp("helo", field) == 0) |
452 |
|
|
return ascii_load_string(ep->helo, buf, sizeof ep->helo); |
453 |
|
|
|
454 |
|
|
if (strcasecmp("hostname", field) == 0) |
455 |
|
|
return ascii_load_string(ep->hostname, buf, |
456 |
|
|
sizeof ep->hostname); |
457 |
|
|
|
458 |
|
|
if (strcasecmp("last-bounce", field) == 0) |
459 |
|
|
return ascii_load_time(&ep->lastbounce, buf); |
460 |
|
|
|
461 |
|
|
if (strcasecmp("last-try", field) == 0) |
462 |
|
|
return ascii_load_time(&ep->lasttry, buf); |
463 |
|
|
|
464 |
|
|
if (strcasecmp("mda-buffer", field) == 0) |
465 |
|
|
return ascii_load_string(ep->agent.mda.buffer, buf, |
466 |
|
|
sizeof ep->agent.mda.buffer); |
467 |
|
|
|
468 |
|
|
if (strcasecmp("mda-method", field) == 0) |
469 |
|
|
return ascii_load_mda_method(&ep->agent.mda.method, buf); |
470 |
|
|
|
471 |
|
|
if (strcasecmp("mda-user", field) == 0) |
472 |
|
|
return ascii_load_string(ep->agent.mda.username, buf, |
473 |
|
|
sizeof ep->agent.mda.username); |
474 |
|
|
|
475 |
|
|
if (strcasecmp("mda-usertable", field) == 0) |
476 |
|
|
return ascii_load_string(ep->agent.mda.usertable, buf, |
477 |
|
|
sizeof ep->agent.mda.usertable); |
478 |
|
|
|
479 |
|
|
if (strcasecmp("mda-delivery-user", field) == 0) |
480 |
|
|
return ascii_load_string(ep->agent.mda.delivery_user, buf, |
481 |
|
|
sizeof ep->agent.mda.delivery_user); |
482 |
|
|
|
483 |
|
|
if (strcasecmp("mta-relay", field) == 0) { |
484 |
|
|
int ret; |
485 |
|
|
uint16_t flags = ep->agent.mta.relay.flags; |
486 |
|
|
ret = ascii_load_mta_relay_url(&ep->agent.mta.relay, buf); |
487 |
|
|
if (!ret) |
488 |
|
|
return (0); |
489 |
|
|
ep->agent.mta.relay.flags |= flags; |
490 |
|
|
return ret; |
491 |
|
|
} |
492 |
|
|
|
493 |
|
|
if (strcasecmp("mta-relay-auth", field) == 0) |
494 |
|
|
return ascii_load_string(ep->agent.mta.relay.authtable, buf, |
495 |
|
|
sizeof ep->agent.mta.relay.authtable); |
496 |
|
|
|
497 |
|
|
if (strcasecmp("mta-relay-cert", field) == 0) |
498 |
|
|
return ascii_load_string(ep->agent.mta.relay.pki_name, buf, |
499 |
|
|
sizeof ep->agent.mta.relay.pki_name); |
500 |
|
|
|
501 |
|
|
if (strcasecmp("mta-relay-ca", field) == 0) |
502 |
|
|
return ascii_load_string(ep->agent.mta.relay.ca_name, buf, |
503 |
|
|
sizeof ep->agent.mta.relay.ca_name); |
504 |
|
|
|
505 |
|
|
if (strcasecmp("mta-relay-flags", field) == 0) |
506 |
|
|
return ascii_load_mta_relay_flags(&ep->agent.mta.relay.flags, |
507 |
|
|
buf); |
508 |
|
|
|
509 |
|
|
if (strcasecmp("mta-relay-heloname", field) == 0) |
510 |
|
|
return ascii_load_string(ep->agent.mta.relay.heloname, buf, |
511 |
|
|
sizeof ep->agent.mta.relay.heloname); |
512 |
|
|
|
513 |
|
|
if (strcasecmp("mta-relay-helotable", field) == 0) |
514 |
|
|
return ascii_load_string(ep->agent.mta.relay.helotable, buf, |
515 |
|
|
sizeof ep->agent.mta.relay.helotable); |
516 |
|
|
|
517 |
|
|
if (strcasecmp("mta-relay-source", field) == 0) |
518 |
|
|
return ascii_load_string(ep->agent.mta.relay.sourcetable, buf, |
519 |
|
|
sizeof ep->agent.mta.relay.sourcetable); |
520 |
|
|
|
521 |
|
|
if (strcasecmp("retry", field) == 0) |
522 |
|
|
return ascii_load_uint16(&ep->retry, buf); |
523 |
|
|
|
524 |
|
|
if (strcasecmp("rcpt", field) == 0) |
525 |
|
|
return ascii_load_mailaddr(&ep->rcpt, buf); |
526 |
|
|
|
527 |
|
|
if (strcasecmp("sender", field) == 0) |
528 |
|
|
return ascii_load_mailaddr(&ep->sender, buf); |
529 |
|
|
|
530 |
|
|
if (strcasecmp("smtpname", field) == 0) |
531 |
|
|
return ascii_load_string(ep->smtpname, buf, |
532 |
|
|
sizeof(ep->smtpname)); |
533 |
|
|
|
534 |
|
|
if (strcasecmp("sockaddr", field) == 0) |
535 |
|
|
return ascii_load_sockaddr(&ep->ss, buf); |
536 |
|
|
|
537 |
|
|
if (strcasecmp("tag", field) == 0) |
538 |
|
|
return ascii_load_string(ep->tag, buf, sizeof ep->tag); |
539 |
|
|
|
540 |
|
|
if (strcasecmp("type", field) == 0) |
541 |
|
|
return ascii_load_type(&ep->type, buf); |
542 |
|
|
|
543 |
|
|
if (strcasecmp("version", field) == 0) |
544 |
|
|
return ascii_load_uint32(&ep->version, buf); |
545 |
|
|
|
546 |
|
|
if (strcasecmp("dsn-notify", field) == 0) |
547 |
|
|
return ascii_load_uint8(&ep->dsn_notify, buf); |
548 |
|
|
|
549 |
|
|
if (strcasecmp("dsn-orcpt", field) == 0) |
550 |
|
|
return ascii_load_mailaddr(&ep->dsn_orcpt, buf); |
551 |
|
|
|
552 |
|
|
if (strcasecmp("dsn-ret", field) == 0) |
553 |
|
|
return ascii_load_dsn_ret(&ep->dsn_ret, buf); |
554 |
|
|
|
555 |
|
|
if (strcasecmp("dsn-envid", field) == 0) |
556 |
|
|
return ascii_load_string(ep->dsn_envid, buf, |
557 |
|
|
sizeof(ep->dsn_envid)); |
558 |
|
|
|
559 |
|
|
if (strcasecmp("esc-class", field) == 0) |
560 |
|
|
return ascii_load_uint8(&ep->esc_class, buf); |
561 |
|
|
|
562 |
|
|
if (strcasecmp("esc-code", field) == 0) |
563 |
|
|
return ascii_load_uint8(&ep->esc_code, buf); |
564 |
|
|
|
565 |
|
|
return (0); |
566 |
|
|
} |
567 |
|
|
|
568 |
|
|
static int |
569 |
|
|
envelope_ascii_load(struct envelope *ep, struct dict *d) |
570 |
|
|
{ |
571 |
|
|
const char *field; |
572 |
|
|
char *value; |
573 |
|
|
void *hdl; |
574 |
|
|
|
575 |
|
|
hdl = NULL; |
576 |
|
|
while (dict_iter(d, &hdl, &field, (void **)&value)) |
577 |
|
|
if (!ascii_load_field(field, ep, value)) |
578 |
|
|
goto err; |
579 |
|
|
|
580 |
|
|
return (1); |
581 |
|
|
|
582 |
|
|
err: |
583 |
|
|
log_warnx("envelope: invalid field \"%s\"", field); |
584 |
|
|
return (0); |
585 |
|
|
} |
586 |
|
|
|
587 |
|
|
|
588 |
|
|
static int |
589 |
|
|
ascii_dump_uint8(uint8_t src, char *dest, size_t len) |
590 |
|
|
{ |
591 |
|
|
return bsnprintf(dest, len, "%d", src); |
592 |
|
|
} |
593 |
|
|
|
594 |
|
|
static int |
595 |
|
|
ascii_dump_uint16(uint16_t src, char *dest, size_t len) |
596 |
|
|
{ |
597 |
|
|
return bsnprintf(dest, len, "%d", src); |
598 |
|
|
} |
599 |
|
|
|
600 |
|
|
static int |
601 |
|
|
ascii_dump_uint32(uint32_t src, char *dest, size_t len) |
602 |
|
|
{ |
603 |
|
|
return bsnprintf(dest, len, "%d", src); |
604 |
|
|
} |
605 |
|
|
|
606 |
|
|
static int |
607 |
|
|
ascii_dump_time(time_t src, char *dest, size_t len) |
608 |
|
|
{ |
609 |
|
|
return bsnprintf(dest, len, "%lld", (long long) src); |
610 |
|
|
} |
611 |
|
|
|
612 |
|
|
static int |
613 |
|
|
ascii_dump_string(const char *src, char *dest, size_t len) |
614 |
|
|
{ |
615 |
|
|
return bsnprintf(dest, len, "%s", src); |
616 |
|
|
} |
617 |
|
|
|
618 |
|
|
static int |
619 |
|
|
ascii_dump_type(enum delivery_type type, char *dest, size_t len) |
620 |
|
|
{ |
621 |
|
|
char *p = NULL; |
622 |
|
|
|
623 |
|
|
switch (type) { |
624 |
|
|
case D_MDA: |
625 |
|
|
p = "mda"; |
626 |
|
|
break; |
627 |
|
|
case D_MTA: |
628 |
|
|
p = "mta"; |
629 |
|
|
break; |
630 |
|
|
case D_BOUNCE: |
631 |
|
|
p = "bounce"; |
632 |
|
|
break; |
633 |
|
|
default: |
634 |
|
|
return 0; |
635 |
|
|
} |
636 |
|
|
|
637 |
|
|
return bsnprintf(dest, len, "%s", p); |
638 |
|
|
} |
639 |
|
|
|
640 |
|
|
static int |
641 |
|
|
ascii_dump_mda_method(enum action_type type, char *dest, size_t len) |
642 |
|
|
{ |
643 |
|
|
char *p = NULL; |
644 |
|
|
|
645 |
|
|
switch (type) { |
646 |
|
|
case A_LMTP: |
647 |
|
|
p = "lmtp"; |
648 |
|
|
break; |
649 |
|
|
case A_MAILDIR: |
650 |
|
|
p = "maildir"; |
651 |
|
|
break; |
652 |
|
|
case A_MBOX: |
653 |
|
|
p = "mbox"; |
654 |
|
|
break; |
655 |
|
|
case A_FILENAME: |
656 |
|
|
p = "filename"; |
657 |
|
|
break; |
658 |
|
|
case A_MDA: |
659 |
|
|
p = "mda"; |
660 |
|
|
break; |
661 |
|
|
default: |
662 |
|
|
return 0; |
663 |
|
|
} |
664 |
|
|
return bsnprintf(dest, len, "%s", p); |
665 |
|
|
} |
666 |
|
|
|
667 |
|
|
static int |
668 |
|
|
ascii_dump_mailaddr(const struct mailaddr *addr, char *dest, size_t len) |
669 |
|
|
{ |
670 |
|
|
return bsnprintf(dest, len, "%s@%s", |
671 |
|
|
addr->user, addr->domain); |
672 |
|
|
} |
673 |
|
|
|
674 |
|
|
static int |
675 |
|
|
ascii_dump_flags(enum envelope_flags flags, char *buf, size_t len) |
676 |
|
|
{ |
677 |
|
|
size_t cpylen = 0; |
678 |
|
|
|
679 |
|
|
buf[0] = '\0'; |
680 |
|
|
if (flags) { |
681 |
|
|
if (flags & EF_AUTHENTICATED) |
682 |
|
|
cpylen = strlcat(buf, "authenticated", len); |
683 |
|
|
if (flags & EF_BOUNCE) { |
684 |
|
|
if (buf[0] != '\0') |
685 |
|
|
(void)strlcat(buf, " ", len); |
686 |
|
|
cpylen = strlcat(buf, "bounce", len); |
687 |
|
|
} |
688 |
|
|
if (flags & EF_INTERNAL) { |
689 |
|
|
if (buf[0] != '\0') |
690 |
|
|
(void)strlcat(buf, " ", len); |
691 |
|
|
cpylen = strlcat(buf, "internal", len); |
692 |
|
|
} |
693 |
|
|
} |
694 |
|
|
|
695 |
|
|
return cpylen < len ? 1 : 0; |
696 |
|
|
} |
697 |
|
|
|
698 |
|
|
static int |
699 |
|
|
ascii_dump_mta_relay_url(const struct relayhost *relay, char *buf, size_t len) |
700 |
|
|
{ |
701 |
|
|
return bsnprintf(buf, len, "%s", relayhost_to_text(relay)); |
702 |
|
|
} |
703 |
|
|
|
704 |
|
|
static int |
705 |
|
|
ascii_dump_mta_relay_flags(uint16_t flags, char *buf, size_t len) |
706 |
|
|
{ |
707 |
|
|
size_t cpylen = 0; |
708 |
|
|
|
709 |
|
|
buf[0] = '\0'; |
710 |
|
|
if (flags) { |
711 |
|
|
if (flags & F_TLS_VERIFY) { |
712 |
|
|
if (buf[0] != '\0') |
713 |
|
|
(void)strlcat(buf, " ", len); |
714 |
|
|
cpylen = strlcat(buf, "verify", len); |
715 |
|
|
} |
716 |
|
|
if (flags & F_STARTTLS) { |
717 |
|
|
if (buf[0] != '\0') |
718 |
|
|
(void)strlcat(buf, " ", len); |
719 |
|
|
cpylen = strlcat(buf, "tls", len); |
720 |
|
|
} |
721 |
|
|
} |
722 |
|
|
|
723 |
|
|
return cpylen < len ? 1 : 0; |
724 |
|
|
} |
725 |
|
|
|
726 |
|
|
static int |
727 |
|
|
ascii_dump_bounce_type(enum bounce_type type, char *dest, size_t len) |
728 |
|
|
{ |
729 |
|
|
char *p = NULL; |
730 |
|
|
|
731 |
|
|
switch (type) { |
732 |
|
|
case B_ERROR: |
733 |
|
|
p = "error"; |
734 |
|
|
break; |
735 |
|
|
case B_WARNING: |
736 |
|
|
p = "warn"; |
737 |
|
|
break; |
738 |
|
|
case B_DSN: |
739 |
|
|
p = "dsn"; |
740 |
|
|
break; |
741 |
|
|
default: |
742 |
|
|
return 0; |
743 |
|
|
} |
744 |
|
|
return bsnprintf(dest, len, "%s", p); |
745 |
|
|
} |
746 |
|
|
|
747 |
|
|
|
748 |
|
|
static int |
749 |
|
|
ascii_dump_dsn_ret(enum dsn_ret flag, char *dest, size_t len) |
750 |
|
|
{ |
751 |
|
|
size_t cpylen = 0; |
752 |
|
|
|
753 |
|
|
dest[0] = '\0'; |
754 |
|
|
if (flag == DSN_RETFULL) |
755 |
|
|
cpylen = strlcat(dest, "FULL", len); |
756 |
|
|
else if (flag == DSN_RETHDRS) |
757 |
|
|
cpylen = strlcat(dest, "HDRS", len); |
758 |
|
|
|
759 |
|
|
return cpylen < len ? 1 : 0; |
760 |
|
|
} |
761 |
|
|
|
762 |
|
|
static int |
763 |
|
|
ascii_dump_field(const char *field, const struct envelope *ep, |
764 |
|
|
char *buf, size_t len) |
765 |
|
|
{ |
766 |
|
|
if (strcasecmp(field, "bounce-delay") == 0) { |
767 |
|
|
if (ep->agent.bounce.type != B_WARNING) |
768 |
|
|
return (1); |
769 |
|
|
return ascii_dump_time(ep->agent.bounce.delay, buf, len); |
770 |
|
|
} |
771 |
|
|
|
772 |
|
|
if (strcasecmp(field, "bounce-expire") == 0) { |
773 |
|
|
if (ep->agent.bounce.type != B_WARNING) |
774 |
|
|
return (1); |
775 |
|
|
return ascii_dump_time(ep->agent.bounce.expire, buf, len); |
776 |
|
|
} |
777 |
|
|
|
778 |
|
|
if (strcasecmp(field, "bounce-type") == 0) |
779 |
|
|
return ascii_dump_bounce_type(ep->agent.bounce.type, buf, len); |
780 |
|
|
|
781 |
|
|
if (strcasecmp(field, "ctime") == 0) |
782 |
|
|
return ascii_dump_time(ep->creation, buf, len); |
783 |
|
|
|
784 |
|
|
if (strcasecmp(field, "dest") == 0) |
785 |
|
|
return ascii_dump_mailaddr(&ep->dest, buf, len); |
786 |
|
|
|
787 |
|
|
if (strcasecmp(field, "errorline") == 0) |
788 |
|
|
return ascii_dump_string(ep->errorline, buf, len); |
789 |
|
|
|
790 |
|
|
if (strcasecmp(field, "expire") == 0) |
791 |
|
|
return ascii_dump_time(ep->expire, buf, len); |
792 |
|
|
|
793 |
|
|
if (strcasecmp(field, "flags") == 0) |
794 |
|
|
return ascii_dump_flags(ep->flags, buf, len); |
795 |
|
|
|
796 |
|
|
if (strcasecmp(field, "helo") == 0) |
797 |
|
|
return ascii_dump_string(ep->helo, buf, len); |
798 |
|
|
|
799 |
|
|
if (strcasecmp(field, "hostname") == 0) |
800 |
|
|
return ascii_dump_string(ep->hostname, buf, len); |
801 |
|
|
|
802 |
|
|
if (strcasecmp(field, "last-bounce") == 0) |
803 |
|
|
return ascii_dump_time(ep->lastbounce, buf, len); |
804 |
|
|
|
805 |
|
|
if (strcasecmp(field, "last-try") == 0) |
806 |
|
|
return ascii_dump_time(ep->lasttry, buf, len); |
807 |
|
|
|
808 |
|
|
if (strcasecmp(field, "mda-buffer") == 0) |
809 |
|
|
return ascii_dump_string(ep->agent.mda.buffer, buf, len); |
810 |
|
|
|
811 |
|
|
if (strcasecmp(field, "mda-method") == 0) |
812 |
|
|
return ascii_dump_mda_method(ep->agent.mda.method, buf, len); |
813 |
|
|
|
814 |
|
|
if (strcasecmp(field, "mda-user") == 0) |
815 |
|
|
return ascii_dump_string(ep->agent.mda.username, buf, len); |
816 |
|
|
|
817 |
|
|
if (strcasecmp(field, "mda-delivery-user") == 0) |
818 |
|
|
return ascii_dump_string(ep->agent.mda.delivery_user, buf, len); |
819 |
|
|
|
820 |
|
|
if (strcasecmp(field, "mda-usertable") == 0) |
821 |
|
|
return ascii_dump_string(ep->agent.mda.usertable, buf, len); |
822 |
|
|
|
823 |
|
|
if (strcasecmp(field, "mta-relay") == 0) { |
824 |
|
|
if (ep->agent.mta.relay.hostname[0]) |
825 |
|
|
return ascii_dump_mta_relay_url(&ep->agent.mta.relay, |
826 |
|
|
buf, len); |
827 |
|
|
return (1); |
828 |
|
|
} |
829 |
|
|
|
830 |
|
|
if (strcasecmp(field, "mta-relay-auth") == 0) |
831 |
|
|
return ascii_dump_string(ep->agent.mta.relay.authtable, |
832 |
|
|
buf, len); |
833 |
|
|
|
834 |
|
|
if (strcasecmp(field, "mta-relay-cert") == 0) |
835 |
|
|
return ascii_dump_string(ep->agent.mta.relay.pki_name, |
836 |
|
|
buf, len); |
837 |
|
|
|
838 |
|
|
if (strcasecmp(field, "mta-relay-ca") == 0) |
839 |
|
|
return ascii_dump_string(ep->agent.mta.relay.ca_name, |
840 |
|
|
buf, len); |
841 |
|
|
|
842 |
|
|
if (strcasecmp(field, "mta-relay-flags") == 0) |
843 |
|
|
return ascii_dump_mta_relay_flags(ep->agent.mta.relay.flags, |
844 |
|
|
buf, len); |
845 |
|
|
|
846 |
|
|
if (strcasecmp(field, "mta-relay-heloname") == 0) |
847 |
|
|
return ascii_dump_string(ep->agent.mta.relay.heloname, |
848 |
|
|
buf, len); |
849 |
|
|
|
850 |
|
|
if (strcasecmp(field, "mta-relay-helotable") == 0) |
851 |
|
|
return ascii_dump_string(ep->agent.mta.relay.helotable, |
852 |
|
|
buf, len); |
853 |
|
|
|
854 |
|
|
if (strcasecmp(field, "mta-relay-source") == 0) |
855 |
|
|
return ascii_dump_string(ep->agent.mta.relay.sourcetable, |
856 |
|
|
buf, len); |
857 |
|
|
|
858 |
|
|
if (strcasecmp(field, "retry") == 0) |
859 |
|
|
return ascii_dump_uint16(ep->retry, buf, len); |
860 |
|
|
|
861 |
|
|
if (strcasecmp(field, "rcpt") == 0) |
862 |
|
|
return ascii_dump_mailaddr(&ep->rcpt, buf, len); |
863 |
|
|
|
864 |
|
|
if (strcasecmp(field, "sender") == 0) |
865 |
|
|
return ascii_dump_mailaddr(&ep->sender, buf, len); |
866 |
|
|
|
867 |
|
|
if (strcasecmp(field, "smtpname") == 0) |
868 |
|
|
return ascii_dump_string(ep->smtpname, buf, len); |
869 |
|
|
|
870 |
|
|
if (strcasecmp(field, "sockaddr") == 0) |
871 |
|
|
return ascii_dump_string(ss_to_text(&ep->ss), buf, len); |
872 |
|
|
|
873 |
|
|
if (strcasecmp(field, "tag") == 0) |
874 |
|
|
return ascii_dump_string(ep->tag, buf, len); |
875 |
|
|
|
876 |
|
|
if (strcasecmp(field, "type") == 0) |
877 |
|
|
return ascii_dump_type(ep->type, buf, len); |
878 |
|
|
|
879 |
|
|
if (strcasecmp(field, "version") == 0) |
880 |
|
|
return ascii_dump_uint32(SMTPD_ENVELOPE_VERSION, buf, len); |
881 |
|
|
|
882 |
|
|
if (strcasecmp(field, "dsn-notify") == 0) |
883 |
|
|
return ascii_dump_uint8(ep->dsn_notify, buf, len); |
884 |
|
|
|
885 |
|
|
if (strcasecmp(field, "dsn-ret") == 0) |
886 |
|
|
return ascii_dump_dsn_ret(ep->dsn_ret, buf, len); |
887 |
|
|
|
888 |
|
|
if (strcasecmp(field, "dsn-orcpt") == 0) { |
889 |
|
|
if (ep->dsn_orcpt.user[0] && ep->dsn_orcpt.domain[0]) |
890 |
|
|
return ascii_dump_mailaddr(&ep->dsn_orcpt, buf, len); |
891 |
|
|
return 1; |
892 |
|
|
} |
893 |
|
|
|
894 |
|
|
if (strcasecmp(field, "dsn-envid") == 0) |
895 |
|
|
return ascii_dump_string(ep->dsn_envid, buf, len); |
896 |
|
|
|
897 |
|
|
if (strcasecmp(field, "esc-class") == 0) { |
898 |
|
|
if (ep->esc_class) |
899 |
|
|
return ascii_dump_uint8(ep->esc_class, buf, len); |
900 |
|
|
return 1; |
901 |
|
|
} |
902 |
|
|
|
903 |
|
|
if (strcasecmp(field, "esc-code") == 0) { |
904 |
|
|
/* this is not a pasto, we dump esc_code if esc_class is !0 */ |
905 |
|
|
if (ep->esc_class) |
906 |
|
|
return ascii_dump_uint8(ep->esc_code, buf, len); |
907 |
|
|
return 1; |
908 |
|
|
} |
909 |
|
|
|
910 |
|
|
return (0); |
911 |
|
|
} |
912 |
|
|
|
913 |
|
|
static void |
914 |
|
|
envelope_ascii_dump(const struct envelope *ep, char **dest, size_t *len, |
915 |
|
|
const char *field) |
916 |
|
|
{ |
917 |
|
|
char buf[8192]; |
918 |
|
|
int l; |
919 |
|
|
|
920 |
|
|
if (*dest == NULL) |
921 |
|
|
return; |
922 |
|
|
|
923 |
|
|
memset(buf, 0, sizeof buf); |
924 |
|
|
if (!ascii_dump_field(field, ep, buf, sizeof buf)) |
925 |
|
|
goto err; |
926 |
|
|
if (buf[0] == '\0') |
927 |
|
|
return; |
928 |
|
|
|
929 |
|
|
l = snprintf(*dest, *len, "%s: %s\n", field, buf); |
930 |
|
|
if (l == -1 || (size_t) l >= *len) |
931 |
|
|
goto err; |
932 |
|
|
*dest += l; |
933 |
|
|
*len -= l; |
934 |
|
|
|
935 |
|
|
return; |
936 |
|
|
err: |
937 |
|
|
*dest = NULL; |
938 |
|
|
} |