illumos/illumos-gate: usr/src/lib/libsysevent/libevchannel.c annotate

annotate usr/src/lib/libsysevent/libevchannel.c @ 12979:ab9ae749152f

PSARC/2009/617 Software Events Notification Parameters CLI PSARC/2009/618 snmp-notify: SNMP Notification Daemon for Software Events PSARC/2009/619 smtp-notify: Email Notification Daemon for Software Events PSARC/2010/225 fmd for non-global Solaris zones PSARC/2010/226 Solaris Instance UUID PSARC/2010/227 nvlist_nvflag(3NVPAIR) PSARC/2010/228 libfmevent additions PSARC/2010/257 sysevent_evc_setpropnvl and sysevent_evc_getpropnvl PSARC/2010/265 FMRI and FMA Event Stabilty, 'ireport' category 1 event class, and the 'sw' FMRI scheme PSARC/2010/278 FMA/SMF integration: instance state transitions PSARC/2010/279 Modelling panics within FMA PSARC/2010/290 logadm.conf upgrade 6392476 fmdump needs to pretty-print 6393375 userland ereport/ireport event generation interfaces 6445732 Add email notification agent for FMA and software events 6804168 RFE: Allow an efficient means to monitor SMF services status changes 6866661 scf_values_destroy(3SCF) will segfault if is passed NULL 6884709 Add snmp notification agent for FMA and software events 6884712 Add private interface to tap into libfmd_msg macro expansion capabilities 6897919 fmd to run in a non-global zone 6897937 fmd use of non-private doors is not safe 6900081 add a UUID to Solaris kernel image for use in crashdump identification 6914884 model panic events as a defect diagnosis in FMA 6944862 fmd_case_open_uuid, fmd_case_uuisresolved, fmd_nvl_create_defect 6944866 log legacy sysevents in fmd 6944867 enumerate svc scheme in topo 6944868 software-diagnosis and software-response fmd modules 6944870 model SMF maintenance state as a defect diagnosis in FMA 6944876 savecore runs in foreground for systems with zfs root and dedicated dump 6965796 Implement notification parameters for SMF state transitions and FMA events 6968287 SUN-FM-MIB.mib needs to be updated to reflect Oracle information 6972331 logadm.conf upgrade PSARC/2010/290

author	Gavin Maltby <gavin.maltby@oracle.com>
date	Fri, 30 Jul 2010 17:04:17 +1000
parents	b91faef0c984
children

rev	line source
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	1 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	2 * CDDL HEADER START
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	3 *
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	4 * The contents of this file are subject to the terms of the
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	5 * Common Development and Distribution License (the "License").
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	6 * You may not use this file except in compliance with the License.
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	7 *
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	9 * or http://www.opensolaris.org/os/licensing.
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	10 * See the License for the specific language governing permissions
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	11 * and limitations under the License.
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	12 *
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	13 * When distributing Covered Code, include this CDDL HEADER in each
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	15 * If applicable, add the following below this CDDL HEADER, with the
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	16 * fields enclosed by brackets "[]" replaced with your own identifying
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	17 * information: Portions Copyright [yyyy] [name of copyright owner]
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	18 *
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	19 * CDDL HEADER END
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	20 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	21 /*
12979 ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	22 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	23 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	24
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	25 #include <stdio.h>
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	26 #include <ctype.h>
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	27 #include <fcntl.h>
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	28 #include <errno.h>
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	29 #include <door.h>
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	30 #include <unistd.h>
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	31 #include <stddef.h>
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	32 #include <stdlib.h>
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	33 #include <strings.h>
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	34 #include <pthread.h>
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	35 #include <atomic.h>
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	36 #include <signal.h>
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	37 #include <sys/types.h>
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	38 #include <sys/varargs.h>
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	39 #include <sys/sysevent.h>
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	40 #include <sys/sysevent_impl.h>
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	41
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	42 #include "libsysevent.h"
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	43 #include "libsysevent_impl.h"
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	44
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	45 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	46 * The functions below deal with the General Purpose Event Handling framework
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	47 *
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	48 * sysevent_evc_bind - create/bind application to named channel
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	49 * sysevent_evc_unbind - unbind from previously bound/created channel
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	50 * sysevent_evc_subscribe - subscribe to existing event channel
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	51 * sysevent_evc_unsubscribe - unsubscribe from existing event channel
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	52 * sysevent_evc_publish - generate a system event via an event channel
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	53 * sysevent_evc_control - various channel based control operation
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	54 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	55
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	56 static void kill_door_servers(evchan_subscr_t *);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	57
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	58 #define misaligned(p) ((uintptr_t)(p) & 3) /* 4-byte alignment required */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	59
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	60 static pthread_key_t nrkey = PTHREAD_ONCE_KEY_NP;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	61
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	62 /*
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	63 * If the current thread is a door server thread servicing a door created
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	64 * for us in sysevent_evc_xsubscribe, then an attempt to unsubscribe from
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	65 * within door invocation context on the same channel will deadlock in the
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	66 * kernel waiting for our own invocation to complete. Such calls are
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	67 * forbidden, and we abort if they are encountered (better than hanging
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	68 * unkillably).
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	69 *
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	70 * We'd like to offer this detection to subscriptions established with
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	71 * sysevent_evc_subscribe, but we don't have control over the door service
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	72 * threads in that case. Perhaps the fix is to always use door_xcreate
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	73 * even for sysevent_evc_subscribe?
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	74 */
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	75 static boolean_t
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	76 will_deadlock(evchan_t *scp)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	77 {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	78 evchan_subscr_t *subp = pthread_getspecific(nrkey);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	79 evchan_impl_hdl_t *hdl = EVCHAN_IMPL_HNDL(scp);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	80
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	81 return (subp != NULL && subp->ev_subhead == hdl ? B_TRUE : B_FALSE);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	82 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	83
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	84 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	85 * Check syntax of a channel name
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	86 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	87 static int
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	88 sysevent_is_chan_name(const char *str)
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	89 {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	90 for (; *str != '\0'; str++) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	91 if (!EVCH_ISCHANCHAR(*str))
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	92 return (0);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	93 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	94
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	95 return (1);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	96 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	97
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	98 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	99 * Check for printable characters
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	100 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	101 static int
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	102 strisprint(const char *s)
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	103 {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	104 for (; *s != '\0'; s++) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	105 if (s < ' ' \|\| s > '~')
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	106 return (0);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	107 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	108
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	109 return (1);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	110 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	111
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	112 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	113 * sysevent_evc_bind - Create/bind application to named channel
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	114 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	115 int
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	116 sysevent_evc_bind(const char channel, evchan_t *scpp, uint32_t flags)
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	117 {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	118 int chanlen;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	119 evchan_t *scp;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	120 sev_bind_args_t uargs;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	121 int ec;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	122
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	123 if (scpp == NULL \|\| misaligned(scpp)) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	124 return (errno = EINVAL);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	125 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	126
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	127 /* Provide useful value in error case */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	128 *scpp = NULL;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	129
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	130 if (channel == NULL \|\|
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	131 (chanlen = strlen(channel) + 1) > MAX_CHNAME_LEN) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	132 return (errno = EINVAL);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	133 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	134
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	135 /* Check channel syntax */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	136 if (!sysevent_is_chan_name(channel)) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	137 return (errno = EINVAL);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	138 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	139
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	140 if (flags & ~EVCH_B_FLAGS) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	141 return (errno = EINVAL);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	142 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	143
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	144 scp = calloc(1, sizeof (evchan_impl_hdl_t));
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	145 if (scp == NULL) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	146 return (errno = ENOMEM);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	147 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	148
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	149 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	150 * Enable sysevent driver. Fallback if the device link doesn't exist;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	151 * this situation can arise if a channel is bound early in system
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	152 * startup, prior to devfsadm(1M) being invoked.
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	153 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	154 EV_FD(scp) = open(DEVSYSEVENT, O_RDWR);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	155 if (EV_FD(scp) == -1) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	156 if (errno != ENOENT) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	157 ec = errno == EACCES ? EPERM : errno;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	158 free(scp);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	159 return (errno = ec);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	160 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	161
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	162 EV_FD(scp) = open(DEVICESYSEVENT, O_RDWR);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	163 if (EV_FD(scp) == -1) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	164 ec = errno == EACCES ? EPERM : errno;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	165 free(scp);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	166 return (errno = ec);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	167 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	168 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	169
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	170 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	171 * Force to close the fd's when process is doing exec.
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	172 * The driver will then release stale binding handles.
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	173 * The driver will release also the associated subscriptions
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	174 * if EVCH_SUB_KEEP flag was not set.
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	175 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	176 (void) fcntl(EV_FD(scp), F_SETFD, FD_CLOEXEC);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	177
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	178 uargs.chan_name.name = (uintptr_t)channel;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	179 uargs.chan_name.len = chanlen;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	180 uargs.flags = flags;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	181
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	182 if (ioctl(EV_FD(scp), SEV_CHAN_OPEN, &uargs) != 0) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	183 ec = errno;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	184 (void) close(EV_FD(scp));
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	185 free(scp);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	186 return (errno = ec);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	187 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	188
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	189 /* Needed to detect a fork() */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	190 EV_PID(scp) = getpid();
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	191 (void) mutex_init(EV_LOCK(scp), USYNC_THREAD, NULL);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	192
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	193 *scpp = scp;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	194
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	195 return (0);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	196 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	197
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	198 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	199 * sysevent_evc_unbind - Unbind from previously bound/created channel
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	200 */
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	201 int
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	202 sysevent_evc_unbind(evchan_t *scp)
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	203 {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	204 sev_unsubscribe_args_t uargs;
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	205 evchan_subscr_t *subp;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	206 int errcp;
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	207
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	208 if (scp == NULL \|\| misaligned(scp))
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	209 return (errno = EINVAL);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	210
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	211 if (will_deadlock(scp))
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	212 return (errno = EDEADLK);
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	213
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	214 (void) mutex_lock(EV_LOCK(scp));
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	215
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	216 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	217 * Unsubscribe, if we are in the process which did the bind.
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	218 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	219 if (EV_PID(scp) == getpid()) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	220 uargs.sid.name = NULL;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	221 uargs.sid.len = 0;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	222 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	223 * The unsubscribe ioctl will block until all door upcalls have
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	224 * drained.
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	225 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	226 if (ioctl(EV_FD(scp), SEV_UNSUBSCRIBE, (intptr_t)&uargs) != 0) {
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	227 errcp = errno;
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	228 (void) mutex_unlock(EV_LOCK(scp));
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	229 return (errno = errcp);
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	230 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	231 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	232
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	233 while ((subp = EV_SUB_NEXT(scp)) != NULL) {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	234 EV_SUB_NEXT(scp) = subp->evsub_next;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	235
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	236 /* If door_xcreate was applied we can clean up */
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	237 if (subp->evsub_attr)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	238 kill_door_servers(subp);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	239
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	240 if (door_revoke(subp->evsub_door_desc) != 0 && errno == EPERM)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	241 (void) close(subp->evsub_door_desc);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	242
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	243 free(subp->evsub_sid);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	244 free(subp);
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	245 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	246
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	247 (void) mutex_unlock(EV_LOCK(scp));
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	248
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	249 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	250 * The close of the driver will do the unsubscribe if a) it is the last
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	251 * close and b) we are in a child which inherited subscriptions.
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	252 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	253 (void) close(EV_FD(scp));
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	254 (void) mutex_destroy(EV_LOCK(scp));
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	255 free(scp);
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	256
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	257 return (0);
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	258 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	259
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	260 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	261 * sysevent_evc_publish - Generate a system event via an event channel
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	262 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	263 int
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	264 sysevent_evc_publish(evchan_t scp, const char class,
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	265 const char subclass, const char vendor,
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	266 const char pub_name, nvlist_t attr_list,
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	267 uint32_t flags)
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	268 {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	269 sysevent_t *ev;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	270 sev_publish_args_t uargs;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	271 int rc;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	272 int ec;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	273
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	274 if (scp == NULL \|\| misaligned(scp)) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	275 return (errno = EINVAL);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	276 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	277
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	278 /* No inheritance of binding handles via fork() */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	279 if (EV_PID(scp) != getpid()) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	280 return (errno = EINVAL);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	281 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	282
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	283 ev = sysevent_alloc_event((char )class, (char )subclass,
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	284 (char )vendor, (char )pub_name, attr_list);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	285 if (ev == NULL) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	286 return (errno);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	287 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	288
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	289 uargs.ev.name = (uintptr_t)ev;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	290 uargs.ev.len = SE_SIZE(ev);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	291 uargs.flags = flags;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	292
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	293 (void) mutex_lock(EV_LOCK(scp));
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	294
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	295 rc = ioctl(EV_FD(scp), SEV_PUBLISH, (intptr_t)&uargs);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	296 ec = errno;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	297
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	298 (void) mutex_unlock(EV_LOCK(scp));
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	299
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	300 sysevent_free(ev);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	301
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	302 if (rc != 0) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	303 return (ec);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	304 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	305 return (0);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	306 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	307
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	308 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	309 * Generic callback which catches events from the kernel and calls
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	310 * subscribers call back routine.
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	311 *
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	312 * Kernel guarantees that door_upcalls are disabled when unsubscription
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	313 * was issued that's why cookie points always to a valid evchan_subscr_t *.
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	314 *
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	315 * Furthermore it's not necessary to lock subp because the sysevent
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	316 * framework guarantees no unsubscription until door_return.
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	317 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	318 /ARGSUSED3/
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	319 static void
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	320 door_upcall(void cookie, char args, size_t alen,
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	321 door_desc_t *ddp, uint_t ndid)
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	322 {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	323 evchan_subscr_t *subp = EVCHAN_SUBSCR(cookie);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	324 int rval = 0;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	325
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	326 /*
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	327 * If we've been invoked simply to kill the thread then
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	328 * exit now.
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	329 */
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	330 if (subp->evsub_state == EVCHAN_SUB_STATE_CLOSING)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	331 pthread_exit(NULL);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	332
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	333 if (args == NULL \|\| alen <= (size_t)0) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	334 /* Skip callback execution */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	335 rval = EINVAL;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	336 } else {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	337 rval = subp->evsub_func((sysevent_t )(void )args,
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	338 subp->evsub_cookie);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	339 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	340
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	341 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	342 * Fill in return values for door_return
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	343 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	344 alen = sizeof (rval);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	345 bcopy(&rval, args, alen);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	346
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	347 (void) door_return(args, alen, NULL, 0);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	348 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	349
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	350 static pthread_once_t xsub_thrattr_once = PTHREAD_ONCE_INIT;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	351 static pthread_attr_t xsub_thrattr;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	352
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	353 static void
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	354 xsub_thrattr_init(void)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	355 {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	356 (void) pthread_attr_init(&xsub_thrattr);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	357 (void) pthread_attr_setdetachstate(&xsub_thrattr,
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	358 PTHREAD_CREATE_DETACHED);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	359 (void) pthread_attr_setscope(&xsub_thrattr, PTHREAD_SCOPE_SYSTEM);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	360 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	361
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	362 /*
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	363 * Our door server create function is only called during initial
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	364 * door_xcreate since we specify DOOR_NO_DEPLETION_CB.
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	365 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	366 int
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	367 xsub_door_server_create(door_info_t dip, void (startf)(void ),
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	368 void startfarg, void cookie)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	369 {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	370 evchan_subscr_t *subp = EVCHAN_SUBSCR(cookie);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	371 struct sysevent_subattr_impl *xsa = subp->evsub_attr;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	372 pthread_attr_t *thrattr;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	373 sigset_t oset;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	374 int err;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	375
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	376 if (subp->evsub_state == EVCHAN_SUB_STATE_CLOSING)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	377 return (0); /* shouldn't happen, but just in case */
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	378
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	379 /*
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	380 * If sysevent_evc_xsubscribe was called electing to use a
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	381 * different door server create function then let it take it
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	382 * from here.
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	383 */
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	384 if (xsa->xs_thrcreate) {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	385 return (xsa->xs_thrcreate(dip, startf, startfarg,
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	386 xsa->xs_thrcreate_cookie));
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	387 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	388
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	389 if (xsa->xs_thrattr == NULL) {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	390 (void) pthread_once(&xsub_thrattr_once, xsub_thrattr_init);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	391 thrattr = &xsub_thrattr;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	392 } else {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	393 thrattr = xsa->xs_thrattr;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	394 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	395
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	396 (void) pthread_sigmask(SIG_SETMASK, &xsa->xs_sigmask, &oset);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	397 err = pthread_create(NULL, thrattr, startf, startfarg);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	398 (void) pthread_sigmask(SIG_SETMASK, &oset, NULL);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	399
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	400 return (err == 0 ? 1 : -1);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	401 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	402
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	403 void
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	404 xsub_door_server_setup(void *cookie)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	405 {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	406 evchan_subscr_t *subp = EVCHAN_SUBSCR(cookie);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	407 struct sysevent_subattr_impl *xsa = subp->evsub_attr;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	408
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	409 if (xsa->xs_thrsetup == NULL) {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	410 (void) pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	411 (void) pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	412 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	413
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	414 (void) pthread_setspecific(nrkey, (void *)subp);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	415
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	416 if (xsa->xs_thrsetup)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	417 xsa->xs_thrsetup(xsa->xs_thrsetup_cookie);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	418 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	419
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	420 /*
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	421 * Cause private door server threads to exit. We have already performed the
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	422 * unsubscribe ioctl which stops new invocations and waits until all
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	423 * existing invocations are complete. So all server threads should be
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	424 * blocked in door_return. The door has not yet been revoked. We will
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	425 * invoke repeatedly after setting the evsub_state to be noticed on
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	426 * wakeup; each invocation will result in the death of one server thread.
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	427 *
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	428 * You'd think it would be easier to kill these threads, such as through
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	429 * pthread_cancel. Unfortunately door_return is not a cancellation point,
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	430 * and if you do cancel a thread blocked in door_return the EINTR check in
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	431 * the door_return assembly logic causes us to loop with EINTR forever!
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	432 */
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	433 static void
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	434 kill_door_servers(evchan_subscr_t *subp)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	435 {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	436 door_arg_t da;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	437
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	438 bzero(&da, sizeof (da));
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	439 subp->evsub_state = EVCHAN_SUB_STATE_CLOSING;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	440 membar_producer();
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	441
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	442 (void) door_call(subp->evsub_door_desc, &da);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	443 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	444
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	445 static int
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	446 sysevent_evc_subscribe_cmn(evchan_t scp, const char sid, const char *class,
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	447 int (event_handler)(sysevent_t ev, void *cookie),
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	448 void cookie, uint32_t flags, struct sysevent_subattr_impl xsa)
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	449 {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	450 evchan_subscr_t *subp;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	451 int upcall_door;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	452 sev_subscribe_args_t uargs;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	453 uint32_t sid_len;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	454 uint32_t class_len;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	455 int ec;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	456
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	457 if (scp == NULL \|\| misaligned(scp) \|\| sid == NULL \|\| class == NULL) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	458 return (errno = EINVAL);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	459 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	460
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	461 /* No inheritance of binding handles via fork() */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	462 if (EV_PID(scp) != getpid()) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	463 return (errno = EINVAL);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	464 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	465
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	466 if ((sid_len = strlen(sid) + 1) > MAX_SUBID_LEN \|\| sid_len == 1 \|\|
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	467 (class_len = strlen(class) + 1) > MAX_CLASS_LEN) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	468 return (errno = EINVAL);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	469 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	470
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	471 /* Check for printable characters */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	472 if (!strisprint(sid)) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	473 return (errno = EINVAL);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	474 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	475
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	476 if (event_handler == NULL) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	477 return (errno = EINVAL);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	478 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	479
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	480 if (pthread_key_create_once_np(&nrkey, NULL) != 0)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	481 return (errno); /* ENOMEM or EAGAIN */
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	482
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	483 /* Create subscriber data */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	484 if ((subp = calloc(1, sizeof (evchan_subscr_t))) == NULL) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	485 return (errno);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	486 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	487
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	488 if ((subp->evsub_sid = strdup(sid)) == NULL) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	489 ec = errno;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	490 free(subp);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	491 return (ec);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	492 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	493
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	494 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	495 * EC_ALL string will not be copied to kernel - NULL is assumed
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	496 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	497 if (strcmp(class, EC_ALL) == 0) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	498 class = NULL;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	499 class_len = 0;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	500 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	501
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	502 /*
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	503 * Fill this in now for the xsub_door_server_setup dance
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	504 */
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	505 subp->ev_subhead = EVCHAN_IMPL_HNDL(scp);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	506 subp->evsub_state = EVCHAN_SUB_STATE_ACTIVE;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	507
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	508 if (xsa == NULL) {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	509 upcall_door = door_create(door_upcall, (void *)subp,
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	510 DOOR_REFUSE_DESC \| DOOR_NO_CANCEL);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	511 } else {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	512 subp->evsub_attr = xsa;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	513
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	514 /*
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	515 * Create a private door with exactly one thread to
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	516 * service the callbacks (the GPEC kernel implementation
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	517 * serializes deliveries for each subscriber id).
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	518 */
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	519 upcall_door = door_xcreate(door_upcall, (void *)subp,
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	520 DOOR_REFUSE_DESC \| DOOR_NO_CANCEL \| DOOR_NO_DEPLETION_CB,
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	521 xsub_door_server_create, xsub_door_server_setup,
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	522 (void *)subp, 1);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	523 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	524
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	525 if (upcall_door == -1) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	526 ec = errno;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	527 free(subp->evsub_sid);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	528 free(subp);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	529 return (ec);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	530 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	531
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	532 /* Complete subscriber information */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	533 subp->evsub_door_desc = upcall_door;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	534 subp->evsub_func = event_handler;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	535 subp->evsub_cookie = cookie;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	536
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	537 (void) mutex_lock(EV_LOCK(scp));
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	538
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	539 uargs.sid.name = (uintptr_t)sid;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	540 uargs.sid.len = sid_len;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	541 uargs.class_info.name = (uintptr_t)class;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	542 uargs.class_info.len = class_len;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	543 uargs.door_desc = subp->evsub_door_desc;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	544 uargs.flags = flags;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	545 if (ioctl(EV_FD(scp), SEV_SUBSCRIBE, (intptr_t)&uargs) != 0) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	546 ec = errno;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	547 (void) mutex_unlock(EV_LOCK(scp));
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	548 if (xsa)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	549 kill_door_servers(subp);
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	550 (void) door_revoke(upcall_door);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	551 free(subp->evsub_sid);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	552 free(subp);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	553 return (ec);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	554 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	555
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	556 /* Attach to subscriber list */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	557 subp->evsub_next = EV_SUB_NEXT(scp);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	558 EV_SUB_NEXT(scp) = subp;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	559
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	560 (void) mutex_unlock(EV_LOCK(scp));
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	561
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	562 return (0);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	563 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	564
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	565 /*
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	566 * sysevent_evc_subscribe - subscribe to an existing event channel
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	567 * using a non-private door (which will create as many server threads
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	568 * as the apparent maximum concurrency requirements suggest).
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	569 */
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	570 int
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	571 sysevent_evc_subscribe(evchan_t scp, const char sid, const char *class,
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	572 int (event_handler)(sysevent_t ev, void *cookie),
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	573 void *cookie, uint32_t flags)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	574 {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	575 return (sysevent_evc_subscribe_cmn(scp, sid, class, event_handler,
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	576 cookie, flags, NULL));
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	577 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	578
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	579 static void
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	580 subattr_dfltinit(struct sysevent_subattr_impl *xsa)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	581 {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	582 (void) sigfillset(&xsa->xs_sigmask);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	583 (void) sigdelset(&xsa->xs_sigmask, SIGABRT);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	584 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	585
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	586 static struct sysevent_subattr_impl dfltsa;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	587 pthread_once_t dfltsa_inited = PTHREAD_ONCE_INIT;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	588
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	589 static void
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	590 init_dfltsa(void)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	591 {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	592 subattr_dfltinit(&dfltsa);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	593 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	594
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	595 /*
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	596 * sysevent_evc_subscribe - subscribe to an existing event channel
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	597 * using a private door with control over thread creation.
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	598 */
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	599 int
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	600 sysevent_evc_xsubscribe(evchan_t scp, const char sid, const char *class,
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	601 int (event_handler)(sysevent_t ev, void *cookie),
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	602 void cookie, uint32_t flags, sysevent_subattr_t attr)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	603 {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	604 struct sysevent_subattr_impl *xsa;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	605
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	606 if (attr != NULL) {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	607 xsa = (struct sysevent_subattr_impl *)attr;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	608 } else {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	609 xsa = &dfltsa;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	610 (void) pthread_once(&dfltsa_inited, init_dfltsa);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	611 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	612
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	613 return (sysevent_evc_subscribe_cmn(scp, sid, class, event_handler,
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	614 cookie, flags, xsa));
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	615 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	616
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	617 sysevent_subattr_t *
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	618 sysevent_subattr_alloc(void)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	619 {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	620 struct sysevent_subattr_impl xsa = calloc(1, sizeof (xsa));
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	621
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	622 if (xsa != NULL)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	623 subattr_dfltinit(xsa);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	624
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	625 return (xsa != NULL ? (sysevent_subattr_t *)xsa : NULL);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	626 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	627
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	628 void
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	629 sysevent_subattr_free(sysevent_subattr_t *attr)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	630 {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	631 struct sysevent_subattr_impl *xsa =
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	632 (struct sysevent_subattr_impl *)attr;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	633
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	634 free(xsa);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	635 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	636
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	637 void
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	638 sysevent_subattr_thrcreate(sysevent_subattr_t *attr,
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	639 door_xcreate_server_func_t thrcreate, void cookie)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	640 {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	641 struct sysevent_subattr_impl *xsa =
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	642 (struct sysevent_subattr_impl *)attr;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	643
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	644 xsa->xs_thrcreate = thrcreate;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	645 xsa->xs_thrcreate_cookie = cookie;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	646 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	647
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	648 void
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	649 sysevent_subattr_thrsetup(sysevent_subattr_t *attr,
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	650 door_xcreate_thrsetup_func_t thrsetup, void cookie)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	651 {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	652 struct sysevent_subattr_impl *xsa =
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	653 (struct sysevent_subattr_impl *)attr;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	654
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	655 xsa->xs_thrsetup = thrsetup;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	656 xsa->xs_thrsetup_cookie = cookie;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	657 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	658
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	659 void
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	660 sysevent_subattr_sigmask(sysevent_subattr_t attr, sigset_t set)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	661 {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	662 struct sysevent_subattr_impl *xsa =
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	663 (struct sysevent_subattr_impl *)attr;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	664
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	665 if (set) {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	666 xsa->xs_sigmask = *set;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	667 } else {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	668 (void) sigfillset(&xsa->xs_sigmask);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	669 (void) sigdelset(&xsa->xs_sigmask, SIGABRT);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	670 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	671 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	672
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	673 void
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	674 sysevent_subattr_thrattr(sysevent_subattr_t attr, pthread_attr_t thrattr)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	675 {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	676 struct sysevent_subattr_impl *xsa =
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	677 (struct sysevent_subattr_impl *)attr;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	678
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	679 xsa->xs_thrattr = thrattr;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	680 }
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	681
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	682 /*
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	683 * sysevent_evc_unsubscribe - Unsubscribe from an existing event channel
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	684 */
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	685 int
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	686 sysevent_evc_unsubscribe(evchan_t scp, const char sid)
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	687 {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	688 int all_subscribers = 0;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	689 sev_unsubscribe_args_t uargs;
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	690 evchan_subscr_t subp, prevsubp, *tofree;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	691 int errcp;
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	692 int rc;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	693
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	694 if (scp == NULL \|\| misaligned(scp))
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	695 return (errno = EINVAL);
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	696
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	697 if (sid == NULL \|\| strlen(sid) == 0 \|\|
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	698 (strlen(sid) >= MAX_SUBID_LEN))
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	699 return (errno = EINVAL);
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	700
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	701 /* No inheritance of binding handles via fork() */
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	702 if (EV_PID(scp) != getpid())
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	703 return (errno = EINVAL);
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	704
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	705 if (strcmp(sid, EVCH_ALLSUB) == 0) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	706 all_subscribers++;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	707 /* Indicates all subscriber id's for this channel */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	708 uargs.sid.name = NULL;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	709 uargs.sid.len = 0;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	710 } else {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	711 uargs.sid.name = (uintptr_t)sid;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	712 uargs.sid.len = strlen(sid) + 1;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	713 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	714
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	715 if (will_deadlock(scp))
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	716 return (errno = EDEADLK);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	717
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	718 (void) mutex_lock(EV_LOCK(scp));
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	719
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	720 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	721 * The unsubscribe ioctl will block until all door upcalls have drained.
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	722 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	723 rc = ioctl(EV_FD(scp), SEV_UNSUBSCRIBE, (intptr_t)&uargs);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	724
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	725 if (rc != 0) {
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	726 errcp = errno;
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	727 (void) mutex_unlock(EV_LOCK(scp));
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	728 return (errno = errcp); /* EFAULT, ENXIO, EINVAL possible */
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	729 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	730
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	731
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	732 /*
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	733 * Search for the matching subscriber. If EVCH_ALLSUB was specified
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	734 * then the ioctl above will have returned 0 even if there are
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	735 * no subscriptions, so the initial EV_SUB_NEXT can be NULL.
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	736 */
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	737 prevsubp = NULL;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	738 subp = EV_SUB_NEXT(scp);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	739 while (subp != NULL) {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	740 if (all_subscribers \|\| strcmp(subp->evsub_sid, sid) == 0) {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	741 if (prevsubp == NULL) {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	742 EV_SUB_NEXT(scp) = subp->evsub_next;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	743 } else {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	744 prevsubp->evsub_next = subp->evsub_next;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	745 }
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	746
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	747 tofree = subp;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	748 subp = subp->evsub_next;
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	749
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	750 /* If door_xcreate was applied we can clean up */
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	751 if (tofree->evsub_attr)
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	752 kill_door_servers(tofree);
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	753
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	754 (void) door_revoke(tofree->evsub_door_desc);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	755 free(tofree->evsub_sid);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	756 free(tofree);
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	757
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	758 /* Freed single subscriber already? */
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	759 if (all_subscribers == 0)
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	760 break;
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	761 } else {
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	762 prevsubp = subp;
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	763 subp = subp->evsub_next;
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	764 }
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	765 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	766
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	767 (void) mutex_unlock(EV_LOCK(scp));
11102 b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	768
b91faef0c984 PSARC/2009/554 door_xcreate - extended door creation interface for private doors Gavin Maltby <Gavin.Maltby@Sun.COM> parents: 0 diff changeset	769 return (0);
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	770 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	771
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	772 /*
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	773 * sysevent_evc_control - Various channel based control operation
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	774 */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	775 int
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	776 sysevent_evc_control(evchan_t scp, int cmd, / arg */ ...)
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	777 {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	778 va_list ap;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	779 uint32_t *chlenp;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	780 sev_control_args_t uargs;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	781 int rc = 0;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	782
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	783 if (scp == NULL \|\| misaligned(scp)) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	784 return (errno = EINVAL);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	785 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	786
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	787 /* No inheritance of binding handles via fork() */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	788 if (EV_PID(scp) != getpid()) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	789 return (errno = EINVAL);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	790 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	791
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	792 va_start(ap, cmd);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	793
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	794 uargs.cmd = cmd;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	795
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	796 (void) mutex_lock(EV_LOCK(scp));
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	797
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	798 switch (cmd) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	799 case EVCH_GET_CHAN_LEN:
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	800 case EVCH_GET_CHAN_LEN_MAX:
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	801 chlenp = va_arg(ap, uint32_t *);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	802 if (chlenp == NULL \|\| misaligned(chlenp)) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	803 rc = EINVAL;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	804 break;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	805 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	806 rc = ioctl(EV_FD(scp), SEV_CHAN_CONTROL, (intptr_t)&uargs);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	807 *chlenp = uargs.value;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	808 break;
12979 ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	809
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	810 case EVCH_SET_CHAN_LEN:
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	811 /* Range change will be handled in framework */
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	812 uargs.value = va_arg(ap, uint32_t);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	813 rc = ioctl(EV_FD(scp), SEV_CHAN_CONTROL, (intptr_t)&uargs);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	814 break;
12979 ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	815
0 68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	816 default:
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	817 rc = EINVAL;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	818 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	819
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	820 (void) mutex_unlock(EV_LOCK(scp));
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	821
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	822 if (rc == -1) {
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	823 rc = errno;
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	824 }
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	825
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	826 va_end(ap);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	827
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	828 return (errno = rc);
68f95e015346 OpenSolaris Launch stevel@tonic-gate parents: diff changeset	829 }
12979 ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	830
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	831 int
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	832 sysevent_evc_setpropnvl(evchan_t scp, nvlist_t nvl)
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	833 {
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	834 sev_propnvl_args_t uargs;
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	835 char *buf = NULL;
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	836 size_t nvlsz = 0;
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	837 int rc;
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	838
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	839 if (scp == NULL \|\| misaligned(scp))
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	840 return (errno = EINVAL);
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	841
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	842 if (nvl != NULL &&
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	843 nvlist_pack(nvl, &buf, &nvlsz, NV_ENCODE_NATIVE, 0) != 0)
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	844 return (errno);
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	845
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	846 uargs.packednvl.name = (uint64_t)(uintptr_t)buf;
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	847 uargs.packednvl.len = (uint32_t)nvlsz;
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	848
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	849 rc = ioctl(EV_FD(scp), SEV_SETPROPNVL, (intptr_t)&uargs);
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	850
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	851 if (buf)
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	852 free(buf);
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	853
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	854 return (rc);
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	855 }
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	856
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	857 int
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	858 sysevent_evc_getpropnvl(evchan_t scp, nvlist_t *nvlp)
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	859 {
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	860 sev_propnvl_args_t uargs;
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	861 char buf[1024], bufp = buf; / stack buffer */
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	862 size_t sz = sizeof (buf);
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	863 char buf2 = NULL; / allocated if stack buf too small */
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	864 int64_t expgen = -1;
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	865 int rc;
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	866
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	867 if (scp == NULL \|\| misaligned(scp) \|\| nvlp == NULL)
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	868 return (errno = EINVAL);
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	869
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	870 *nvlp = NULL;
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	871
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	872 again:
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	873 uargs.packednvl.name = (uint64_t)(uintptr_t)bufp;
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	874 uargs.packednvl.len = (uint32_t)sz;
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	875
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	876 rc = ioctl(EV_FD(scp), SEV_GETPROPNVL, (intptr_t)&uargs);
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	877
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	878 if (rc == E2BIG)
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	879 return (errno = E2BIG); /* driver refuses to copyout */
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	880
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	881 /*
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	882 * If the packed nvlist is too big for the buffer size we offered
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	883 * then the ioctl returns EOVERFLOW and indicates in the 'len'
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	884 * the size required for the current property nvlist generation
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	885 * (itself returned in the generation member).
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	886 */
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	887 if (rc == EOVERFLOW &&
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	888 (buf2 == NULL \|\| uargs.generation != expgen)) {
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	889 if (buf2 != NULL)
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	890 free(buf2);
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	891
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	892 if ((sz = uargs.packednvl.len) > 1024 * 1024)
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	893 return (E2BIG);
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	894
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	895 bufp = buf2 = malloc(sz);
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	896
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	897 if (buf2 == NULL)
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	898 return (errno = ENOMEM);
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	899
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	900 expgen = uargs.generation;
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	901 goto again;
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	902 }
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	903
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	904 /*
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	905 * The chan prop nvlist can be absent, in which case the ioctl
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	906 * returns success and uargs.packednvl.len of 0; we have already
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	907 * set *nvlp to NULL. Otherwise we must unpack the nvl.
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	908 */
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	909 if (rc == 0 && uargs.packednvl.len != 0 &&
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	910 nvlist_unpack(bufp, uargs.packednvl.len, nvlp, 0) != 0)
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	911 rc = EINVAL;
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	912
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	913 if (buf2 != NULL)
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	914 free(buf2);
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	915
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	916 return (rc ? errno = rc : 0);
ab9ae749152f PSARC/2009/617 Software Events Notification Parameters CLI Gavin Maltby <gavin.maltby@oracle.com> parents: 11102 diff changeset	917 }

Mercurial > illumos > illumos-gate

annotate usr/src/lib/libsysevent/libevchannel.c @ 12979:ab9ae749152f