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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/smtpd/smtpd/../pony.c	Lines:	0	61	0.0 %
Date:	2017-11-13	Branches:	0	61	0.0 %


/*	$OpenBSD: pony.c,v 1.18 2017/08/13 11:10:30 eric Exp $	*/

/*
 * Copyright (c) 2014 Gilles Chehade <gilles@poolp.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/types.h>
#include <sys/queue.h>
#include <sys/tree.h>
#include <sys/socket.h>

#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <event.h>
#include <imsg.h>
#include <inttypes.h>
#include <pwd.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <limits.h>
#include <grp.h>
#include <vis.h>

#include "smtpd.h"
#include "log.h"

void mda_imsg(struct mproc *, struct imsg *);
void mta_imsg(struct mproc *, struct imsg *);
void smtp_imsg(struct mproc *, struct imsg *);

static void pony_shutdown(void);

void
pony_imsg(struct mproc *p, struct imsg *imsg)
{
	struct msg	m;
	int		v;

	if (imsg == NULL)
		pony_shutdown();

	switch (imsg->hdr.type) {
	case IMSG_CONF_START:
		return;
	case IMSG_CONF_END:
		smtp_configure();
		return;
	case IMSG_CTL_VERBOSE:
		m_msg(&m, imsg);
		m_get_int(&m, &v);
		m_end(&m);
		log_trace_verbose(v);
		return;
	case IMSG_CTL_PROFILE:
		m_msg(&m, imsg);
		m_get_int(&m, &v);
		m_end(&m);
		profiling = v;
		return;

	/* smtp imsg */
	case IMSG_SMTP_DNS_PTR:
	case IMSG_SMTP_CHECK_SENDER:
	case IMSG_SMTP_EXPAND_RCPT:
	case IMSG_SMTP_LOOKUP_HELO:
	case IMSG_SMTP_AUTHENTICATE:
	case IMSG_SMTP_TLS_INIT:
	case IMSG_SMTP_TLS_VERIFY:
	case IMSG_SMTP_MESSAGE_COMMIT:
	case IMSG_SMTP_MESSAGE_CREATE:
	case IMSG_SMTP_MESSAGE_OPEN:
	case IMSG_QUEUE_ENVELOPE_SUBMIT:
	case IMSG_QUEUE_ENVELOPE_COMMIT:
	case IMSG_QUEUE_SMTP_SESSION:
	case IMSG_CTL_SMTP_SESSION:
	case IMSG_CTL_PAUSE_SMTP:
	case IMSG_CTL_RESUME_SMTP:
		smtp_imsg(p, imsg);
		return;

        /* mta imsg */
	case IMSG_QUEUE_TRANSFER:
	case IMSG_MTA_OPEN_MESSAGE:
	case IMSG_MTA_LOOKUP_CREDENTIALS:
	case IMSG_MTA_LOOKUP_SOURCE:
	case IMSG_MTA_LOOKUP_HELO:
	case IMSG_MTA_DNS_HOST:
	case IMSG_MTA_DNS_HOST_END:
	case IMSG_MTA_DNS_MX_PREFERENCE:
	case IMSG_MTA_DNS_PTR:
	case IMSG_MTA_TLS_INIT:
	case IMSG_MTA_TLS_VERIFY:
	case IMSG_CTL_RESUME_ROUTE:
	case IMSG_CTL_MTA_SHOW_HOSTS:
	case IMSG_CTL_MTA_SHOW_RELAYS:
	case IMSG_CTL_MTA_SHOW_ROUTES:
	case IMSG_CTL_MTA_SHOW_HOSTSTATS:
	case IMSG_CTL_MTA_BLOCK:
	case IMSG_CTL_MTA_UNBLOCK:
	case IMSG_CTL_MTA_SHOW_BLOCK:
		mta_imsg(p, imsg);
		return;

        /* mda imsg */
	case IMSG_MDA_LOOKUP_USERINFO:
	case IMSG_QUEUE_DELIVER:
	case IMSG_MDA_OPEN_MESSAGE:
	case IMSG_MDA_FORK:
	case IMSG_MDA_DONE:
		mda_imsg(p, imsg);
		return;
	default:
		break;
	}

	errx(1, "session_imsg: unexpected %s imsg", imsg_to_str(imsg->hdr.type));
}

static void
pony_shutdown(void)
{
	log_debug("debug: pony agent exiting");
	_exit(0);
}

int
pony(void)
{
	struct passwd	*pw;

	mda_postfork();
	mta_postfork();
	smtp_postfork();

	/* do not purge listeners and pki, they are purged
	 * in smtp_configure()
	 */
	purge_config(PURGE_TABLES|PURGE_RULES);

	if ((pw = getpwnam(SMTPD_USER)) == NULL)
		fatalx("unknown user " SMTPD_USER);

	if (chroot(PATH_CHROOT) == -1)
		fatal("pony: chroot");
	if (chdir("/") == -1)
		fatal("pony: chdir(\"/\")");

	config_process(PROC_PONY);

	if (setgroups(1, &pw->pw_gid) ||
	    setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) ||
	    setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid))
		fatal("pony: cannot drop privileges");

	imsg_callback = pony_imsg;
	event_init();

	mda_postprivdrop();
	mta_postprivdrop();
	smtp_postprivdrop();

	signal(SIGINT, SIG_IGN);
	signal(SIGTERM, SIG_IGN);
	signal(SIGPIPE, SIG_IGN);
	signal(SIGHUP, SIG_IGN);

	config_peer(PROC_PARENT);
	config_peer(PROC_QUEUE);
	config_peer(PROC_LKA);
	config_peer(PROC_CONTROL);
	config_peer(PROC_CA);

	ca_engine_init();

	if (pledge("stdio inet unix recvfd sendfd flock rpath cpath wpath", NULL) == -1)
		err(1, "pledge");

	event_dispatch();
	fatalx("exited event loop");

	return (0);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: pony.c,v 1.18 2017/08/13 11:10:30 eric Exp $ */
2
3			/*
4			* Copyright (c) 2014 Gilles Chehade <gilles@poolp.org>
5			*
6			* Permission to use, copy, modify, and distribute this software for any
7			* purpose with or without fee is hereby granted, provided that the above
8			* copyright notice and this permission notice appear in all copies.
9			*
10			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17			*/
18
19			#include <sys/types.h>
20			#include <sys/queue.h>
21			#include <sys/tree.h>
22			#include <sys/socket.h>
23
24			#include <ctype.h>
25			#include <err.h>
26			#include <errno.h>
27			#include <event.h>
28			#include <imsg.h>
29			#include <inttypes.h>
30			#include <pwd.h>
31			#include <signal.h>
32			#include <stdio.h>
33			#include <stdlib.h>
34			#include <string.h>
35			#include <time.h>
36			#include <unistd.h>
37			#include <limits.h>
38			#include <grp.h>
39			#include <vis.h>
40
41			#include "smtpd.h"
42			#include "log.h"
43
44			void mda_imsg(struct mproc , struct imsg );
45			void mta_imsg(struct mproc , struct imsg );
46			void smtp_imsg(struct mproc , struct imsg );
47
48			static void pony_shutdown(void);
49
50			void
51			pony_imsg(struct mproc p, struct imsg imsg)
52			{
53			struct msg m;
54			int v;
55
56			if (imsg == NULL)
57			pony_shutdown();
58
59			switch (imsg->hdr.type) {
60			case IMSG_CONF_START:
61			return;
62			case IMSG_CONF_END:
63			smtp_configure();
64			return;
65			case IMSG_CTL_VERBOSE:
66			m_msg(&m, imsg);
67			m_get_int(&m, &v);
68			m_end(&m);
69			log_trace_verbose(v);
70			return;
71			case IMSG_CTL_PROFILE:
72			m_msg(&m, imsg);
73			m_get_int(&m, &v);
74			m_end(&m);
75			profiling = v;
76			return;
77
78			/* smtp imsg */
79			case IMSG_SMTP_DNS_PTR:
80			case IMSG_SMTP_CHECK_SENDER:
81			case IMSG_SMTP_EXPAND_RCPT:
82			case IMSG_SMTP_LOOKUP_HELO:
83			case IMSG_SMTP_AUTHENTICATE:
84			case IMSG_SMTP_TLS_INIT:
85			case IMSG_SMTP_TLS_VERIFY:
86			case IMSG_SMTP_MESSAGE_COMMIT:
87			case IMSG_SMTP_MESSAGE_CREATE:
88			case IMSG_SMTP_MESSAGE_OPEN:
89			case IMSG_QUEUE_ENVELOPE_SUBMIT:
90			case IMSG_QUEUE_ENVELOPE_COMMIT:
91			case IMSG_QUEUE_SMTP_SESSION:
92			case IMSG_CTL_SMTP_SESSION:
93			case IMSG_CTL_PAUSE_SMTP:
94			case IMSG_CTL_RESUME_SMTP:
95			smtp_imsg(p, imsg);
96			return;
97
98			/* mta imsg */
99			case IMSG_QUEUE_TRANSFER:
100			case IMSG_MTA_OPEN_MESSAGE:
101			case IMSG_MTA_LOOKUP_CREDENTIALS:
102			case IMSG_MTA_LOOKUP_SOURCE:
103			case IMSG_MTA_LOOKUP_HELO:
104			case IMSG_MTA_DNS_HOST:
105			case IMSG_MTA_DNS_HOST_END:
106			case IMSG_MTA_DNS_MX_PREFERENCE:
107			case IMSG_MTA_DNS_PTR:
108			case IMSG_MTA_TLS_INIT:
109			case IMSG_MTA_TLS_VERIFY:
110			case IMSG_CTL_RESUME_ROUTE:
111			case IMSG_CTL_MTA_SHOW_HOSTS:
112			case IMSG_CTL_MTA_SHOW_RELAYS:
113			case IMSG_CTL_MTA_SHOW_ROUTES:
114			case IMSG_CTL_MTA_SHOW_HOSTSTATS:
115			case IMSG_CTL_MTA_BLOCK:
116			case IMSG_CTL_MTA_UNBLOCK:
117			case IMSG_CTL_MTA_SHOW_BLOCK:
118			mta_imsg(p, imsg);
119			return;
120
121			/* mda imsg */
122			case IMSG_MDA_LOOKUP_USERINFO:
123			case IMSG_QUEUE_DELIVER:
124			case IMSG_MDA_OPEN_MESSAGE:
125			case IMSG_MDA_FORK:
126			case IMSG_MDA_DONE:
127			mda_imsg(p, imsg);
128			return;
129			default:
130			break;
131			}
132
133			errx(1, "session_imsg: unexpected %s imsg", imsg_to_str(imsg->hdr.type));
134			}
135
136			static void
137			pony_shutdown(void)
138			{
139			log_debug("debug: pony agent exiting");
140			_exit(0);
141			}
142
143			int
144			pony(void)
145			{
146			struct passwd *pw;
147
148			mda_postfork();
149			mta_postfork();
150			smtp_postfork();
151
152			/* do not purge listeners and pki, they are purged
153			* in smtp_configure()
154			*/
155			purge_config(PURGE_TABLES\|PURGE_RULES);
156
157			if ((pw = getpwnam(SMTPD_USER)) == NULL)
158			fatalx("unknown user " SMTPD_USER);
159
160			if (chroot(PATH_CHROOT) == -1)
161			fatal("pony: chroot");
162			if (chdir("/") == -1)
163			fatal("pony: chdir(\"/\")");
164
165			config_process(PROC_PONY);
166
167			if (setgroups(1, &pw->pw_gid) \|\|
168			setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) \|\|
169			setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid))
170			fatal("pony: cannot drop privileges");
171
172			imsg_callback = pony_imsg;
173			event_init();
174
175			mda_postprivdrop();
176			mta_postprivdrop();
177			smtp_postprivdrop();
178
179			signal(SIGINT, SIG_IGN);
180			signal(SIGTERM, SIG_IGN);
181			signal(SIGPIPE, SIG_IGN);
182			signal(SIGHUP, SIG_IGN);
183
184			config_peer(PROC_PARENT);
185			config_peer(PROC_QUEUE);
186			config_peer(PROC_LKA);
187			config_peer(PROC_CONTROL);
188			config_peer(PROC_CA);
189
190			ca_engine_init();
191
192			if (pledge("stdio inet unix recvfd sendfd flock rpath cpath wpath", NULL) == -1)
193			err(1, "pledge");
194
195			event_dispatch();
196			fatalx("exited event loop");
197
198			return (0);
199			}