Adding upstream version 8.2402.0.upstream/8.2402.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 420 insertions, 0 deletions

diff --git a/plugins/imsolaris/sun_cddl.c b/plugins/imsolaris/sun_cddl.c
new file mode 100644
index 0000000..6bdc31c
--- /dev/null
+++ b/plugins/imsolaris/sun_cddl.c
@@ -0,0 +1,420 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/* Portions Copyright 2010-2014 by Rainer Gerhards and Adiscon
+ */
+/*
+ * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+/*
+ *      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T
+ *      All Rights Reserved
+ */
+
+/*
+ * University Copyright- Copyright (c) 1982, 1986, 1988
+ * The Regents of the University of California
+ * All Rights Reserved
+ *
+ * University Acknowledgment- Portions of this document are derived from
+ * software developed by the University of California, Berkeley, and its
+ * contributors.
+ */
+#include "config.h"
+#include <unistd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <pthread.h>
+#include <fcntl.h>
+#include <stropts.h>
+#include <assert.h>
+
+#include <sys/param.h>
+#include <sys/strlog.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/poll.h>
+#include <door.h>
+#include <sys/door.h>
+
+#include "rsyslog.h"
+#include "srUtils.h"
+#include "debug.h"
+#include "imsolaris.h"
+
+#define	DOORFILE		"/var/run/syslog_door"
+#define	RELATIVE_DOORFILE	"../var/run/syslog_door"
+#define	OLD_DOORFILE		"/etc/.syslog_door"
+
+/* Buffer to allocate for error messages: */
+#define ERRMSG_LEN 1024
+
+/* Max number of door server threads for syslogd. Since door is used
+ * to check the health of syslogd, we don't need large number of
+ * server threads.
+ */
+#define	MAX_DOOR_SERVER_THR	3
+
+
+struct pollfd sun_Pfd;		/* Pollfd for local log device */
+
+static int		DoorFd = -1;
+static int		DoorCreated = 0;
+static char		*DoorFileName = DOORFILE;
+
+/* for managing door server threads */
+static pthread_mutex_t door_server_cnt_lock = PTHREAD_MUTEX_INITIALIZER;
+static uint_t door_server_cnt = 0;
+static pthread_attr_t door_thr_attr;
+
+/* the 'server' function that we export via the door. It does
+ * nothing but return.
+ */
+/*ARGSUSED*/
+static void
+server(	void __attribute__((unused)) *cookie,
+	char __attribute__((unused)) *argp,
+	size_t __attribute__((unused)) arg_size,
+	door_desc_t __attribute__((unused)) *dp,
+	__attribute__((unused)) uint_t n          )
+{
+	(void) door_return(NULL, 0, NULL, 0);
+	/* NOTREACHED */
+}
+
+/*ARGSUSED*/
+static void *
+create_door_thr(void __attribute__((unused)) *arg)
+{
+	(void) pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
+	(void) door_return(NULL, 0, NULL, 0);
+
+	/* If there is an error in door_return(), it will return here and
+	 * the thread will exit. Hence we need to decrement door_server_cnt.
+	 */
+	(void) pthread_mutex_lock(&door_server_cnt_lock);
+	door_server_cnt--;
+	(void) pthread_mutex_unlock(&door_server_cnt_lock);
+	return (NULL);
+}
+
+/*
+ * Manage door server thread pool.
+ */
+/*ARGSUSED*/
+static void
+door_server_pool(door_info_t __attribute__((unused)) *dip)
+{
+	(void) pthread_mutex_lock(&door_server_cnt_lock);
+	if (door_server_cnt <= MAX_DOOR_SERVER_THR &&
+	    pthread_create(NULL, &door_thr_attr, create_door_thr, NULL) == 0) {
+		door_server_cnt++;
+		(void) pthread_mutex_unlock(&door_server_cnt_lock);
+		return;
+	}
+
+	(void) pthread_mutex_unlock(&door_server_cnt_lock);
+}
+
+void
+sun_delete_doorfiles(void)
+{
+	struct stat sb;
+	int err;
+	char line[ERRMSG_LEN+1];
+
+	if (lstat(DoorFileName, &sb) == 0 && !S_ISDIR(sb.st_mode)) {
+		if (unlink(DoorFileName) < 0) {
+			err = errno;
+			(void) snprintf(line, sizeof (line),
+			    "unlink() of %s failed - fatal", DoorFileName);
+			imsolaris_logerror(err, line);
+			DBGPRINTF("delete_doorfiles: error: %s, "
+			    "errno=%d\n", line, err);
+			exit(1);
+		}
+
+		DBGPRINTF("delete_doorfiles: deleted %s\n", DoorFileName);
+	}
+
+	if (strcmp(DoorFileName, DOORFILE) == 0) {
+		if (lstat(OLD_DOORFILE, &sb) == 0 && !S_ISDIR(sb.st_mode)) {
+			if (unlink(OLD_DOORFILE) < 0) {
+				err = errno;
+				(void) snprintf(line, sizeof (line),
+				    "unlink() of %s failed", OLD_DOORFILE);
+				DBGPRINTF("delete_doorfiles: %s\n", line);
+
+				if (err != EROFS) {
+					errno = err;
+					(void) strlcat(line, " - fatal",
+					    sizeof (line));
+					imsolaris_logerror(err, line);
+					DBGPRINTF("delete_doorfiles: "
+					    "error: %s, errno=%d\n",
+					    line, err);
+					exit(1);
+				}
+
+				DBGPRINTF("delete_doorfiles: unlink() "
+				    "failure OK on RO file system\n");
+			}
+
+			DBGPRINTF("delete_doorfiles: deleted %s\n",
+			    OLD_DOORFILE);
+		}
+	}
+
+	if (DoorFd != -1) {
+		(void) door_revoke(DoorFd);
+	}
+
+	DBGPRINTF("delete_doorfiles: revoked door: DoorFd=%d\n",
+	    DoorFd);
+}
+
+
+/* Create the door file.  If the filesystem
+ * containing /etc is writable, create symlinks /etc/.syslog_door
+ * to them.  On systems that do not support /var/run, create
+ * /etc/.syslog_door directly.
+ */
+void
+sun_open_door(void)
+{
+	struct stat buf;
+	door_info_t info;
+	char line[ERRMSG_LEN+1];
+	int err;
+
+	/* first see if another instance of imsolaris OR another
+	 * syslogd is running by trying a door call - if it succeeds,
+	 * there is already one active.
+	 */
+
+	if (!DoorCreated) {
+		int door;
+
+		if ((door = open(DoorFileName, O_RDONLY)) >= 0) {
+			DBGPRINTF("open_door: %s opened "
+			    "successfully\n", DoorFileName);
+
+			if (door_info(door, &info) >= 0) {
+				DBGPRINTF("open_door: "
+				    "door_info:info.di_target = %ld\n",
+				    info.di_target);
+
+				if (info.di_target > 0) {
+					(void) sprintf(line, "syslogd pid %ld"
+					    " already running. Cannot "
+					    "start another syslogd pid %ld",
+					    info.di_target, getpid());
+					DBGPRINTF("open_door: error: "
+					    "%s\n", line);
+					imsolaris_logerror(0, line);
+					exit(1);
+				}
+			}
+
+			(void) close(door);
+		} else {
+			if (lstat(DoorFileName, &buf) < 0) {
+				err = errno;
+
+				DBGPRINTF("open_door: lstat() of %s "
+				    "failed, errno=%d\n",
+				    DoorFileName, err);
+
+				if ((door = creat(DoorFileName, 0644)) < 0) {
+					err = errno;
+					(void) snprintf(line, sizeof (line),
+					    "creat() of %s failed - fatal",
+					    DoorFileName);
+					DBGPRINTF("open_door: error: %s, "
+					    "errno=%d\n", line,
+					    err);
+					imsolaris_logerror(err, line);
+					sun_delete_doorfiles();
+					exit(1);
+				}
+
+				(void) fchmod(door,
+				    S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);
+
+				DBGPRINTF("open_door: creat() of %s "
+				    "succeeded\n",
+				    DoorFileName);
+
+				(void) close(door);
+			}
+		}
+
+		if (strcmp(DoorFileName, DOORFILE) == 0) {
+			if (lstat(OLD_DOORFILE, &buf) == 0) {
+				DBGPRINTF("open_door: lstat() of %s "
+				    "succeeded\n", OLD_DOORFILE);
+
+				if (S_ISDIR(buf.st_mode)) {
+					(void) snprintf(line, sizeof (line),
+					    "%s is a directory - fatal",
+					    OLD_DOORFILE);
+					DBGPRINTF("open_door: error: "
+					    "%s\n", line);
+					imsolaris_logerror(0, line);
+					sun_delete_doorfiles();
+					exit(1);
+				}
+
+				DBGPRINTF("open_door: %s is not a "
+				    "directory\n", OLD_DOORFILE);
+				if (unlink(OLD_DOORFILE) < 0) {
+					err = errno;
+					(void) snprintf(line, sizeof (line),
+					    "unlink() of %s failed",
+					    OLD_DOORFILE);
+					DBGPRINTF("open_door: %s\n",
+					    line);
+
+					if (err != EROFS) {
+						DBGPRINTF("open_door: "
+						    "error: %s, "
+						    "errno=%d\n",
+						    line, err);
+						(void) strcat(line, " - fatal");
+						imsolaris_logerror(err, line);
+						sun_delete_doorfiles();
+						exit(1);
+					}
+
+					DBGPRINTF("open_door: unlink "
+					    "failure OK on RO file "
+					    "system\n");
+				}
+			} else {
+				DBGPRINTF("open_door: file %s doesn't "
+				    "exist\n", OLD_DOORFILE);
+			}
+
+			if (symlink(RELATIVE_DOORFILE, OLD_DOORFILE) < 0) {
+				err = errno;
+				(void) snprintf(line, sizeof (line),
+				    "symlink %s -> %s failed", OLD_DOORFILE,
+				    RELATIVE_DOORFILE);
+				DBGPRINTF("open_door: %s\n",
+				    line);
+
+				if (err != EROFS) {
+					DBGPRINTF("open_door: error: %s, "
+					    "errno=%d\n", line,
+					    err);
+					(void) strcat(line, " - fatal");
+					imsolaris_logerror(err, line);
+					sun_delete_doorfiles();
+					exit(1);
+				}
+
+				DBGPRINTF("open_door: symlink failure OK "
+				    "on RO file system\n");
+			} else {
+				DBGPRINTF("open_door: symlink %s -> %s "
+				    "succeeded\n",
+				    OLD_DOORFILE, RELATIVE_DOORFILE);
+			}
+		}
+
+		if ((DoorFd = door_create(server, 0,
+		    DOOR_REFUSE_DESC)) < 0) {
+		    //???? DOOR_NO_CANEL requires newer libs??? DOOR_REFUSE_DESC | DOOR_NO_CANCEL)) < 0) {
+			err = errno;
+			(void) sprintf(line, "door_create() failed - fatal");
+			DBGPRINTF("open_door: error: %s, errno=%d\n",
+			    line, err);
+			imsolaris_logerror(err, line);
+			sun_delete_doorfiles();
+			exit(1);
+		}
+		//???? (void) door_setparam(DoorFd, DOOR_PARAM_DATA_MAX, 0);
+		DBGPRINTF("open_door: door_create() succeeded, "
+		    "DoorFd=%d\n", DoorFd);
+
+		DoorCreated = 1;
+	}
+
+	(void) fdetach(DoorFileName);	/* just in case... */
+
+	(void) door_server_create(door_server_pool);
+
+	if (fattach(DoorFd, DoorFileName) < 0) {
+		err = errno;
+		(void) snprintf(line, sizeof (line), "fattach() of fd"
+		    " %d to %s failed - fatal", DoorFd, DoorFileName);
+		DBGPRINTF("open_door: error: %s, errno=%d\n",
+		    line, err);
+		imsolaris_logerror(err, line);
+		sun_delete_doorfiles();
+		exit(1);
+	}
+
+	DBGPRINTF("open_door: attached server() to %s\n",
+	    DoorFileName);
+
+}
+
+
+/* Attempts to open the local log device
+ * and return a file descriptor.
+ */
+rsRetVal
+sun_openklog(char *name)
+{
+	DEFiRet;
+	int fd;
+	struct strioctl str;
+	char errBuf[1024];
+
+	if((fd = open(name, O_RDONLY)) < 0) {
+		rs_strerror_r(errno, errBuf, sizeof(errBuf));
+		DBGPRINTF("imsolaris:openklog: cannot open %s: %s\n",
+		    name, errBuf);
+		ABORT_FINALIZE(RS_RET_ERR_OPEN_KLOG);
+	}
+	str.ic_cmd = I_CONSLOG;
+	str.ic_timout = 0;
+	str.ic_len = 0;
+	str.ic_dp = NULL;
+	if (ioctl(fd, I_STR, &str) < 0) {
+		rs_strerror_r(errno, errBuf, sizeof(errBuf));
+		DBGPRINTF("imsolaris:openklog: cannot register to log "
+		    "console messages: %s\n", errBuf);
+		ABORT_FINALIZE(RS_RET_ERR_AQ_CONLOG);
+	}
+	sun_Pfd.fd = fd;
+	sun_Pfd.events = POLLIN;
+	DBGPRINTF("imsolaris/openklog: opened '%s' as fd %d.\n", name, fd);
+
+finalize_it:
+	RETiRet;
+}