On Tue, Dec 04, 2018 at 01:10:13PM +0000, [email protected] wrote:
> Gilles Chehade <[email protected]> wrote:
> > On Tue, Dec 04, 2018 at 03:22:14AM +0000, [email protected] wrote:
> > > Gilles Chehade <[email protected]> wrote:
> > > > On Mon, Dec 03, 2018 at 06:11:29PM -0200, Cristiano Costa wrote:
> > > > > Hello everyone,
> > > > >
> > > > > Recently, we have updated our external MTA to use OpenBSD(6.4) and
> > > > > opensmptd.
> > > > >
> > > > > After we updated, our mailman (that run on a Linux machine) started to
> > > > > send "bounce message w/no discernible addresses" messages to us (list
> > > > > admins). It seems that mailman was not able to parse bounce messages
> > > > > sent from opensmtpd. Mailman uses the bounces to remove users from our
> > > > > mailing lists automatically.
> > > > >
> > > > > I have opened a ticket in the mailman bug tracker and the guys there
> > > > > will fix it. However, they also replied in my bug report:
> > > > >
> > > > > > It turns out that this (the bounce format) is almost an RFC 3464
> > > > > > compliant DSN and should be recognized by Mailman/Bouncers/DSN.py
> > > > > > except for the fact that the 'action' in the Delivery Report is
> > > > > > 'error'. This is non-compliant. RFC 3464, sec 2.3.3 defines action
> > > > > > as:
> > > > > >
> > > > > > action-value =
> > > > > > "failed" / "delayed" / "delivered" / "relayed" /
> > > > > > "expanded"
> > > > > >
> > > > > > Thus, 'Action: error' in this DSN is non-compliant. It should be
> > > > > > 'Action: failed'. You may wish to report this to the opensmtpd
> > > > > > developers."
> > > > >
> > > > > So maybe you would like to patch opensmtpd too.
> > > > >
> > > > > The link to the bug report is
> > > > > https://bugs.launchpad.net/mailman/+bug/1805137
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Please keep the great work,
> > > > >
> > > >
> > > > yes, we'll definitely issue a fix for that.
> > > >
> > > > thanks,
> > > > gilles
> > >
> > > This diff uses the standard action-values "failed", "delivered".
> > > Could you give this a try, thanks.
> > >
> >
> > The diff reads ok though maybe you could take it one step further and
> > rename the type enums to match:
> >
> > failed -> B_FAILED
> > delayed -> B_DELAYED
> > relayd/delivered -> B_DELIVERED
>
> Sure, updated diff...
>
better,
comments inlined
> Index: bounce.c
> ===================================================================
> RCS file: /cvs/src/usr.sbin/smtpd/bounce.c,v
> retrieving revision 1.79
> diff -u -p -r1.79 bounce.c
> --- bounce.c 31 May 2018 21:06:12 -0000 1.79
> +++ bounce.c 4 Dec 2018 13:05:14 -0000
> @@ -150,13 +150,13 @@ bounce_add(uint64_t evpid)
>
> switch (evp.esc_class) {
> case ESC_STATUS_OK:
> - key.bounce.type = B_DSN;
> + key.bounce.type = B_DELIVERED;
> break;
> case ESC_STATUS_TEMPFAIL:
> - key.bounce.type = B_WARNING;
> + key.bounce.type = B_DELAYED;
> break;
> default:
> - key.bounce.type = B_ERROR;
> + key.bounce.type = B_FAILED;
> }
>
> key.bounce.dsn_ret = evp.dsn_ret;
> @@ -478,14 +478,14 @@ bounce_next(struct bounce_session *s)
> s->boundary, s->smtpname);
>
> switch (s->msg->bounce.type) {
> - case B_ERROR:
> + case B_FAILED:
> io_xprint(s->io, notice_error);
> break;
> - case B_WARNING:
> + case B_DELAYED:
> io_xprintf(s->io, notice_warning,
> bounce_duration(s->msg->bounce.delay));
> break;
> - case B_DSN:
> + case B_DELIVERED:
> io_xprint(s->io, s->msg->bounce.mta_without_dsn ?
> notice_relay : notice_success);
> break;
> @@ -498,7 +498,7 @@ bounce_next(struct bounce_session *s)
> }
> io_xprint(s->io, "\n");
>
> - if (s->msg->bounce.type == B_WARNING)
> + if (s->msg->bounce.type == B_DELAYED)
> io_xprintf(s->io, notice_warning2,
> bounce_duration(s->msg->bounce.ttl));
>
> @@ -549,7 +549,7 @@ bounce_next(struct bounce_session *s)
> if ((len = getline(&line, &sz, s->msgfp)) == -1)
> break;
> if (len == 1 && line[0] == '\n' && /* end of headers */
> - s->msg->bounce.type == B_DSN &&
> + s->msg->bounce.type == B_DELIVERED &&
> s->msg->bounce.dsn_ret == DSN_RETHDRS) {
> free(line);
> fclose(s->msgfp);
> @@ -795,15 +795,15 @@ static const char *
> action_str(const struct delivery_bounce *b)
> {
> switch (b->type) {
> - case B_ERROR:
> - return ("error");
> - case B_WARNING:
> + case B_FAILED:
> + return ("failed");
> + case B_DELAYED:
> return ("delayed");
> - case B_DSN:
> + case B_DELIVERED:
> if (b->mta_without_dsn)
> return ("relayed");
>
> - return ("success");
> + return ("delivered");
> default:
> log_warn("warn: bounce: unknown bounce_type");
> return ("");
> Index: envelope.c
> ===================================================================
> RCS file: /cvs/src/usr.sbin/smtpd/envelope.c,v
> retrieving revision 1.39
> diff -u -p -r1.39 envelope.c
> --- envelope.c 29 May 2018 19:48:19 -0000 1.39
> +++ envelope.c 4 Dec 2018 13:05:14 -0000
> @@ -345,11 +345,11 @@ static int
> ascii_load_bounce_type(enum bounce_type *dest, char *buf)
> {
> if (strcasecmp(buf, "error") == 0)
> - *dest = B_ERROR;
> + *dest = B_FAILED;
> else if (strcasecmp(buf, "warn") == 0)
> - *dest = B_WARNING;
> + *dest = B_DELAYED;
> else if (strcasecmp(buf, "dsn") == 0)
> - *dest = B_DSN;
> + *dest = B_DELIVERED;
the strcasecmp are not correct here
> else
> return 0;
> return 1;
> @@ -574,13 +574,13 @@ ascii_dump_bounce_type(enum bounce_type
> char *p = NULL;
>
> switch (type) {
> - case B_ERROR:
> + case B_FAILED:
> p = "error";
> break;
> - case B_WARNING:
> + case B_DELAYED:
> p = "warn";
> break;
> - case B_DSN:
> + case B_DELIVERED:
> p = "dsn";
> break;
the dumped strings are not correct here
> default:
> @@ -612,13 +612,13 @@ ascii_dump_field(const char *field, cons
> return ascii_dump_string(ep->dispatcher, buf, len);
>
> if (strcasecmp(field, "bounce-delay") == 0) {
> - if (ep->agent.bounce.type != B_WARNING)
> + if (ep->agent.bounce.type != B_DELAYED)
> return (1);
> return ascii_dump_time(ep->agent.bounce.delay, buf, len);
> }
>
> if (strcasecmp(field, "bounce-ttl") == 0) {
> - if (ep->agent.bounce.type != B_WARNING)
> + if (ep->agent.bounce.type != B_DELAYED)
> return (1);
> return ascii_dump_time(ep->agent.bounce.ttl, buf, len);
> }
> Index: queue.c
> ===================================================================
> RCS file: /cvs/src/usr.sbin/smtpd/queue.c,v
> retrieving revision 1.187
> diff -u -p -r1.187 queue.c
> --- queue.c 31 May 2018 21:06:12 -0000 1.187
> +++ queue.c 4 Dec 2018 13:05:14 -0000
> @@ -210,7 +210,7 @@ queue_imsg(struct mproc *p, struct imsg
> if (queue_envelope_load(evpid, &evp) == 0)
> return;
>
> - bounce.type = B_ERROR;
> + bounce.type = B_FAILED;
> envelope_set_errormsg(&evp, "Envelope expired");
> envelope_set_esc_class(&evp, ESC_STATUS_TEMPFAIL);
> envelope_set_esc_code(&evp, ESC_DELIVERY_TIME_EXPIRED);
> @@ -342,7 +342,7 @@ queue_imsg(struct mproc *p, struct imsg
> return;
> }
> if (evp.dsn_notify & DSN_SUCCESS) {
> - bounce.type = B_DSN;
> + bounce.type = B_DELIVERED;
> bounce.dsn_ret = evp.dsn_ret;
> envelope_set_esc_class(&evp, ESC_STATUS_OK);
> if (imsg->hdr.type == IMSG_MDA_DELIVERY_OK)
> @@ -400,7 +400,7 @@ queue_imsg(struct mproc *p, struct imsg
> m_close(p_scheduler);
> return;
> }
> - bounce.type = B_ERROR;
> + bounce.type = B_FAILED;
> envelope_set_errormsg(&evp, "%s", reason);
> envelope_set_esc_class(&evp, ESC_STATUS_PERMFAIL);
> envelope_set_esc_code(&evp, code);
> @@ -427,7 +427,7 @@ queue_imsg(struct mproc *p, struct imsg
> envelope_set_errormsg(&evp, "%s", "Loop detected");
> envelope_set_esc_class(&evp, ESC_STATUS_TEMPFAIL);
> envelope_set_esc_code(&evp, ESC_ROUTING_LOOP_DETECTED);
> - bounce.type = B_ERROR;
> + bounce.type = B_FAILED;
> queue_bounce(&evp, &bounce);
> queue_envelope_delete(evp.id);
> m_create(p_scheduler, IMSG_QUEUE_DELIVERY_LOOP, 0, 0, -1);
> Index: scheduler.c
> ===================================================================
> RCS file: /cvs/src/usr.sbin/smtpd/scheduler.c,v
> retrieving revision 1.58
> diff -u -p -r1.58 scheduler.c
> --- scheduler.c 31 May 2018 21:06:12 -0000 1.58
> +++ scheduler.c 4 Dec 2018 13:04:53 -0000
> @@ -214,7 +214,7 @@ scheduler_imsg(struct mproc *p, struct i
> si.lastbounce < timestamp) {
> req.evpid = evp.id;
> req.timestamp = timestamp;
> - req.bounce.type = B_WARNING;
> + req.bounce.type = B_DELAYED;
> req.bounce.delay = env->sc_bounce_warn[i];
> req.bounce.ttl = si.ttl;
> m_compose(p, IMSG_SCHED_ENVELOPE_BOUNCE, 0, 0,
> -1,
> Index: smtpd.h
> ===================================================================
> RCS file: /cvs/src/usr.sbin/smtpd/smtpd.h,v
> retrieving revision 1.575
> diff -u -p -r1.575 smtpd.h
> --- smtpd.h 30 Nov 2018 15:33:40 -0000 1.575
> +++ smtpd.h 4 Dec 2018 13:05:14 -0000
> @@ -374,9 +374,9 @@ struct table_backend {
>
>
> enum bounce_type {
> - B_ERROR,
> - B_WARNING,
> - B_DSN
> + B_FAILED,
> + B_DELAYED,
> + B_DELIVERED
> };
>
> enum dsn_ret {
>
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>
--
Gilles Chehade @poolpOrg
https://www.poolp.org tip me: https://paypal.me/poolpOrg
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