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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/bgpd/logmsg.c	Lines:	0	100	0.0 %
Date:	2017-11-13	Branches:	0	69	0.0 %


/*	$OpenBSD: logmsg.c,v 1.3 2017/05/28 20:14:15 claudio Exp $ */

/*
 * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.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 <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <syslog.h>

#include "bgpd.h"
#include "session.h"
#include "log.h"

char *
log_fmt_peer(const struct peer_config *peer)
{
	const char	*ip;
	char		*pfmt, *p;

	ip = log_addr(&peer->remote_addr);
	if ((peer->remote_addr.aid == AID_INET && peer->remote_masklen != 32) ||
	    (peer->remote_addr.aid == AID_INET6 &&
	    peer->remote_masklen != 128)) {
		if (asprintf(&p, "%s/%u", ip, peer->remote_masklen) == -1)
			fatal(NULL);
	} else {
		if ((p = strdup(ip)) == NULL)
			fatal(NULL);
	}

	if (peer->descr[0]) {
		if (asprintf(&pfmt, "neighbor %s (%s)", p, peer->descr) ==
		    -1)
			fatal(NULL);
	} else {
		if (asprintf(&pfmt, "neighbor %s", p) == -1)
			fatal(NULL);
	}
	free(p);
	return (pfmt);
}

void
log_peer_info(const struct peer_config *peer, const char *emsg, ...)
{
	char	*p, *nfmt;
	va_list	 ap;

	p = log_fmt_peer(peer);
	if (asprintf(&nfmt, "%s: %s", p, emsg) == -1)
		fatal(NULL);
	va_start(ap, emsg);
	vlog(LOG_INFO, nfmt, ap);
	va_end(ap);
	free(p);
	free(nfmt);
}

void
log_peer_warn(const struct peer_config *peer, const char *emsg, ...)
{
	char	*p, *nfmt;
	va_list	 ap;

	p = log_fmt_peer(peer);
	if (emsg == NULL) {
		if (asprintf(&nfmt, "%s: %s", p, strerror(errno)) == -1)
			fatal(NULL);
	} else {
		if (asprintf(&nfmt, "%s: %s: %s", p, emsg, strerror(errno)) ==
		    -1)
			fatal(NULL);
	}
	va_start(ap, emsg);
	vlog(LOG_ERR, nfmt, ap);
	va_end(ap);
	free(p);
	free(nfmt);
}

void
log_peer_warnx(const struct peer_config *peer, const char *emsg, ...)
{
	char	*p, *nfmt;
	va_list	 ap;

	p = log_fmt_peer(peer);
	if (asprintf(&nfmt, "%s: %s", p, emsg) == -1)
		fatal(NULL);
	va_start(ap, emsg);
	vlog(LOG_ERR, nfmt, ap);
	va_end(ap);
	free(p);
	free(nfmt);
}

void
log_statechange(struct peer *peer, enum session_state nstate,
    enum session_events event)
{
	char	*p;

	/* don't clutter the logs with constant Connect -> Active -> Connect */
	if (nstate == STATE_CONNECT && peer->state == STATE_ACTIVE &&
	    peer->prev_state == STATE_CONNECT)
		return;
	if (nstate == STATE_ACTIVE && peer->state == STATE_CONNECT &&
	    peer->prev_state == STATE_ACTIVE)
		return;

	peer->lasterr = 0;
	p = log_fmt_peer(&peer->conf);
	logit(LOG_INFO, "%s: state change %s -> %s, reason: %s",
	    p, statenames[peer->state], statenames[nstate], eventnames[event]);
	free(p);
}

void
log_notification(const struct peer *peer, u_int8_t errcode, u_int8_t subcode,
    u_char *data, u_int16_t datalen, const char *dir)
{
	char		*p;
	const char	*suberrname = NULL;
	int		 uk = 0;

	p = log_fmt_peer(&peer->conf);
	switch (errcode) {
	case ERR_HEADER:
		if (subcode >= sizeof(suberr_header_names)/sizeof(char *))
			uk = 1;
		else
			suberrname = suberr_header_names[subcode];
		break;
	case ERR_OPEN:
		if (subcode >= sizeof(suberr_open_names)/sizeof(char *))
			uk = 1;
		else
			suberrname = suberr_open_names[subcode];
		break;
	case ERR_UPDATE:
		if (subcode >= sizeof(suberr_update_names)/sizeof(char *))
			uk = 1;
		else
			suberrname = suberr_update_names[subcode];
		break;
	case ERR_CEASE:
		if (subcode >= sizeof(suberr_cease_names)/sizeof(char *))
			uk = 1;
		else
			suberrname = suberr_cease_names[subcode];
		break;
	case ERR_HOLDTIMEREXPIRED:
		if (subcode != 0)
			uk = 1;
		break;
	case ERR_FSM:
		if (subcode >= sizeof(suberr_fsm_names)/sizeof(char *))
			uk = 1;
		else
			suberrname = suberr_fsm_names[subcode];
		break;
	default:
		logit(LOG_ERR, "%s: %s notification, unknown errcode "
		    "%u, subcode %u", p, dir, errcode, subcode);
		free(p);
		return;
	}

	if (uk)
		logit(LOG_ERR, "%s: %s notification: %s, unknown subcode %u",
		    p, dir, errnames[errcode], subcode);
	else {
		if (suberrname == NULL)
			logit(LOG_ERR, "%s: %s notification: %s", p,
			    dir, errnames[errcode]);
		else
			logit(LOG_ERR, "%s: %s notification: %s, %s",
			    p, dir, errnames[errcode], suberrname);
	}
	free(p);
}

void
log_conn_attempt(const struct peer *peer, struct sockaddr *sa)
{
	char		*p;
	const char	*b;

	if (peer == NULL) {	/* connection from non-peer, drop */
		b = log_sockaddr(sa);
		logit(LOG_INFO, "connection from non-peer %s refused", b);
	} else {
		/* only log if there is a chance that the session may come up */
		if (peer->conf.down && peer->state == STATE_IDLE)
			return;
		p = log_fmt_peer(&peer->conf);
		logit(LOG_INFO, "Connection attempt from %s while session is "
		    "in state %s", p, statenames[peer->state]);
		free(p);
	}
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: logmsg.c,v 1.3 2017/05/28 20:14:15 claudio Exp $ */
2
3			/*
4			* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.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 <errno.h>
20			#include <stdarg.h>
21			#include <stdio.h>
22			#include <stdlib.h>
23			#include <string.h>
24			#include <sys/types.h>
25			#include <syslog.h>
26
27			#include "bgpd.h"
28			#include "session.h"
29			#include "log.h"
30
31			char *
32			log_fmt_peer(const struct peer_config *peer)
33			{
34			const char *ip;
35			char pfmt, p;
36
37			ip = log_addr(&peer->remote_addr);
38			if ((peer->remote_addr.aid == AID_INET && peer->remote_masklen != 32) \|\|
39			(peer->remote_addr.aid == AID_INET6 &&
40			peer->remote_masklen != 128)) {
41			if (asprintf(&p, "%s/%u", ip, peer->remote_masklen) == -1)
42			fatal(NULL);
43			} else {
44			if ((p = strdup(ip)) == NULL)
45			fatal(NULL);
46			}
47
48			if (peer->descr[0]) {
49			if (asprintf(&pfmt, "neighbor %s (%s)", p, peer->descr) ==
50			-1)
51			fatal(NULL);
52			} else {
53			if (asprintf(&pfmt, "neighbor %s", p) == -1)
54			fatal(NULL);
55			}
56			free(p);
57			return (pfmt);
58			}
59
60			void
61			log_peer_info(const struct peer_config peer, const char emsg, ...)
62			{
63			char p, nfmt;
64			va_list ap;
65
66			p = log_fmt_peer(peer);
67			if (asprintf(&nfmt, "%s: %s", p, emsg) == -1)
68			fatal(NULL);
69			va_start(ap, emsg);
70			vlog(LOG_INFO, nfmt, ap);
71			va_end(ap);
72			free(p);
73			free(nfmt);
74			}
75
76			void
77			log_peer_warn(const struct peer_config peer, const char emsg, ...)
78			{
79			char p, nfmt;
80			va_list ap;
81
82			p = log_fmt_peer(peer);
83			if (emsg == NULL) {
84			if (asprintf(&nfmt, "%s: %s", p, strerror(errno)) == -1)
85			fatal(NULL);
86			} else {
87			if (asprintf(&nfmt, "%s: %s: %s", p, emsg, strerror(errno)) ==
88			-1)
89			fatal(NULL);
90			}
91			va_start(ap, emsg);
92			vlog(LOG_ERR, nfmt, ap);
93			va_end(ap);
94			free(p);
95			free(nfmt);
96			}
97
98			void
99			log_peer_warnx(const struct peer_config peer, const char emsg, ...)
100			{
101			char p, nfmt;
102			va_list ap;
103
104			p = log_fmt_peer(peer);
105			if (asprintf(&nfmt, "%s: %s", p, emsg) == -1)
106			fatal(NULL);
107			va_start(ap, emsg);
108			vlog(LOG_ERR, nfmt, ap);
109			va_end(ap);
110			free(p);
111			free(nfmt);
112			}
113
114			void
115			log_statechange(struct peer *peer, enum session_state nstate,
116			enum session_events event)
117			{
118			char *p;
119
120			/* don't clutter the logs with constant Connect -> Active -> Connect */
121			if (nstate == STATE_CONNECT && peer->state == STATE_ACTIVE &&
122			peer->prev_state == STATE_CONNECT)
123			return;
124			if (nstate == STATE_ACTIVE && peer->state == STATE_CONNECT &&
125			peer->prev_state == STATE_ACTIVE)
126			return;
127
128			peer->lasterr = 0;
129			p = log_fmt_peer(&peer->conf);
130			logit(LOG_INFO, "%s: state change %s -> %s, reason: %s",
131			p, statenames[peer->state], statenames[nstate], eventnames[event]);
132			free(p);
133			}
134
135			void
136			log_notification(const struct peer *peer, u_int8_t errcode, u_int8_t subcode,
137			u_char data, u_int16_t datalen, const char dir)
138			{
139			char *p;
140			const char *suberrname = NULL;
141			int uk = 0;
142
143			p = log_fmt_peer(&peer->conf);
144			switch (errcode) {
145			case ERR_HEADER:
146			if (subcode >= sizeof(suberr_header_names)/sizeof(char *))
147			uk = 1;
148			else
149			suberrname = suberr_header_names[subcode];
150			break;
151			case ERR_OPEN:
152			if (subcode >= sizeof(suberr_open_names)/sizeof(char *))
153			uk = 1;
154			else
155			suberrname = suberr_open_names[subcode];
156			break;
157			case ERR_UPDATE:
158			if (subcode >= sizeof(suberr_update_names)/sizeof(char *))
159			uk = 1;
160			else
161			suberrname = suberr_update_names[subcode];
162			break;
163			case ERR_CEASE:
164			if (subcode >= sizeof(suberr_cease_names)/sizeof(char *))
165			uk = 1;
166			else
167			suberrname = suberr_cease_names[subcode];
168			break;
169			case ERR_HOLDTIMEREXPIRED:
170			if (subcode != 0)
171			uk = 1;
172			break;
173			case ERR_FSM:
174			if (subcode >= sizeof(suberr_fsm_names)/sizeof(char *))
175			uk = 1;
176			else
177			suberrname = suberr_fsm_names[subcode];
178			break;
179			default:
180			logit(LOG_ERR, "%s: %s notification, unknown errcode "
181			"%u, subcode %u", p, dir, errcode, subcode);
182			free(p);
183			return;
184			}
185
186			if (uk)
187			logit(LOG_ERR, "%s: %s notification: %s, unknown subcode %u",
188			p, dir, errnames[errcode], subcode);
189			else {
190			if (suberrname == NULL)
191			logit(LOG_ERR, "%s: %s notification: %s", p,
192			dir, errnames[errcode]);
193			else
194			logit(LOG_ERR, "%s: %s notification: %s, %s",
195			p, dir, errnames[errcode], suberrname);
196			}
197			free(p);
198			}
199
200			void
201			log_conn_attempt(const struct peer peer, struct sockaddr sa)
202			{
203			char *p;
204			const char *b;
205
206			if (peer == NULL) { /* connection from non-peer, drop */
207			b = log_sockaddr(sa);
208			logit(LOG_INFO, "connection from non-peer %s refused", b);
209			} else {
210			/* only log if there is a chance that the session may come up */
211			if (peer->conf.down && peer->state == STATE_IDLE)
212			return;
213			p = log_fmt_peer(&peer->conf);
214			logit(LOG_INFO, "Connection attempt from %s while session is "
215			"in state %s", p, statenames[peer->state]);
216			free(p);
217			}
218			}