1b819cea2SGordon Ross /* 2b819cea2SGordon Ross * CDDL HEADER START 3b819cea2SGordon Ross * 4b819cea2SGordon Ross * The contents of this file are subject to the terms of the 5b819cea2SGordon Ross * Common Development and Distribution License (the "License"). 6b819cea2SGordon Ross * You may not use this file except in compliance with the License. 7b819cea2SGordon Ross * 8b819cea2SGordon Ross * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9b819cea2SGordon Ross * or http://www.opensolaris.org/os/licensing. 10b819cea2SGordon Ross * See the License for the specific language governing permissions 11b819cea2SGordon Ross * and limitations under the License. 12b819cea2SGordon Ross * 13b819cea2SGordon Ross * When distributing Covered Code, include this CDDL HEADER in each 14b819cea2SGordon Ross * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15b819cea2SGordon Ross * If applicable, add the following below this CDDL HEADER, with the 16b819cea2SGordon Ross * fields enclosed by brackets "[]" replaced with your own identifying 17b819cea2SGordon Ross * information: Portions Copyright [yyyy] [name of copyright owner] 18b819cea2SGordon Ross * 19b819cea2SGordon Ross * CDDL HEADER END 20b819cea2SGordon Ross */ 21b819cea2SGordon Ross /* 22b819cea2SGordon Ross * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23b819cea2SGordon Ross * Copyright (c) 2012 by Delphix. All rights reserved. 24*8329232eSGordon Ross * Copyright 2017 Nexenta Systems, Inc. All rights reserved. 25f06dce2cSAndrew Stormont * Copyright 2017 RackTop Systems. 26a923e7f4SJohn Levon * Copyright (c) 2018, Joyent, Inc. 27b819cea2SGordon Ross */ 28b819cea2SGordon Ross 29b819cea2SGordon Ross #include <sys/param.h> 30b819cea2SGordon Ross #include <sys/types.h> 31b819cea2SGordon Ross #include <sys/varargs.h> 32b819cea2SGordon Ross #include <sys/systm.h> 33b819cea2SGordon Ross #include <sys/cmn_err.h> 34b819cea2SGordon Ross #include <sys/log.h> 35b819cea2SGordon Ross 36b819cea2SGordon Ross #include <fakekernel.h> 37b819cea2SGordon Ross 38b819cea2SGordon Ross void abort(void) __NORETURN; 39*8329232eSGordon Ross void debug_enter(char *); 40b819cea2SGordon Ross 41b819cea2SGordon Ross char *volatile panicstr; 42b819cea2SGordon Ross va_list panicargs; 43b819cea2SGordon Ross char panicbuf[512]; 44b819cea2SGordon Ross 45b819cea2SGordon Ross volatile int aok; 46b819cea2SGordon Ross 47b819cea2SGordon Ross static const int 48b819cea2SGordon Ross ce_flags[CE_IGNORE] = { SL_NOTE, SL_NOTE, SL_WARN, SL_FATAL }; 49b819cea2SGordon Ross static const char 50b819cea2SGordon Ross ce_prefix[CE_IGNORE][10] = { "", "NOTICE: ", "WARNING: ", "" }; 51b819cea2SGordon Ross static const char 52b819cea2SGordon Ross ce_suffix[CE_IGNORE][2] = { "", "\n", "\n", "" }; 53b819cea2SGordon Ross 54b819cea2SGordon Ross 55b819cea2SGordon Ross /* 56b819cea2SGordon Ross * This function is just a stub, exported NODIRECT so that 57b819cea2SGordon Ross * comsumers like fksmbd can provide their own. 58b819cea2SGordon Ross * (One that actually prints the messages.) 59b819cea2SGordon Ross * 60b819cea2SGordon Ross * It's used by fakekernel_cprintf() below. 61b819cea2SGordon Ross * The flags are SL_... from strlog.h 62b819cea2SGordon Ross */ 63b819cea2SGordon Ross /* ARGSUSED */ 64b819cea2SGordon Ross void 65b819cea2SGordon Ross fakekernel_putlog(char *msg, size_t len, int flags) 66b819cea2SGordon Ross { 67b819cea2SGordon Ross } 68b819cea2SGordon Ross 69b819cea2SGordon Ross /* 70b819cea2SGordon Ross * fakekernel_cprintf() corresponds to os/printf.c:cprintf() 71b819cea2SGordon Ross * This formats the message and calls fakekernel_putlog(). 72b819cea2SGordon Ross * It's exported NODIRECT to allow replacment. 73b819cea2SGordon Ross * The flags are SL_... from strlog.h 74b819cea2SGordon Ross */ 75b819cea2SGordon Ross void 76b819cea2SGordon Ross fakekernel_cprintf(const char *fmt, va_list adx, int flags, 77f06dce2cSAndrew Stormont const char *prefix, const char *suffix) 78b819cea2SGordon Ross { 79b819cea2SGordon Ross size_t bufsize = LOG_MSGSIZE; 80b819cea2SGordon Ross char buf[LOG_MSGSIZE]; 81b819cea2SGordon Ross char *bufp = buf; 82b819cea2SGordon Ross char *msgp, *bufend; 83b819cea2SGordon Ross size_t len; 84b819cea2SGordon Ross 85b819cea2SGordon Ross if (strchr("^!?", fmt[0]) != NULL) { 86b819cea2SGordon Ross if (fmt[0] == '^') 87b819cea2SGordon Ross flags |= SL_CONSONLY; 88b819cea2SGordon Ross else if (fmt[0] == '!') 89b819cea2SGordon Ross flags |= SL_LOGONLY; 90b819cea2SGordon Ross fmt++; 91b819cea2SGordon Ross } 92b819cea2SGordon Ross 93b819cea2SGordon Ross bufend = bufp + bufsize; 94b819cea2SGordon Ross msgp = bufp; 95b819cea2SGordon Ross msgp += snprintf(msgp, bufend - msgp, "[fake_kernel] "); 96b819cea2SGordon Ross msgp += snprintf(msgp, bufend - msgp, prefix); 97b819cea2SGordon Ross msgp += vsnprintf(msgp, bufend - msgp, fmt, adx); 98b819cea2SGordon Ross msgp += snprintf(msgp, bufend - msgp, suffix); 99b819cea2SGordon Ross len = msgp - bufp; 100b819cea2SGordon Ross 101b819cea2SGordon Ross fakekernel_putlog(bufp, len, flags); 102b819cea2SGordon Ross } 103b819cea2SGordon Ross 104*8329232eSGordon Ross /* ARGSUSED */ 105*8329232eSGordon Ross void 106*8329232eSGordon Ross vzprintf(zoneid_t zoneid, const char *fmt, va_list adx) 107*8329232eSGordon Ross { 108*8329232eSGordon Ross fakekernel_cprintf(fmt, adx, SL_CONSOLE | SL_NOTE, "", ""); 109*8329232eSGordon Ross } 110*8329232eSGordon Ross 111*8329232eSGordon Ross /*PRINTFLIKE2*/ 112*8329232eSGordon Ross void 113*8329232eSGordon Ross zprintf(zoneid_t zoneid, const char *fmt, ...) 114*8329232eSGordon Ross { 115*8329232eSGordon Ross va_list adx; 116*8329232eSGordon Ross 117*8329232eSGordon Ross va_start(adx, fmt); 118*8329232eSGordon Ross vzprintf(zoneid, fmt, adx); 119*8329232eSGordon Ross va_end(adx); 120*8329232eSGordon Ross } 121*8329232eSGordon Ross 122b819cea2SGordon Ross /* 123b819cea2SGordon Ross * "User-level crash dump", if you will. 124b819cea2SGordon Ross */ 125b819cea2SGordon Ross void 126b819cea2SGordon Ross vpanic(const char *fmt, va_list adx) 127b819cea2SGordon Ross { 128b819cea2SGordon Ross va_list tmpargs; 129b819cea2SGordon Ross 130b819cea2SGordon Ross panicstr = (char *)fmt; 131b819cea2SGordon Ross va_copy(panicargs, adx); 132b819cea2SGordon Ross 133b819cea2SGordon Ross va_copy(tmpargs, adx); 134b819cea2SGordon Ross fakekernel_cprintf(fmt, tmpargs, SL_FATAL, "fatal: ", "\n"); 135b819cea2SGordon Ross 136b819cea2SGordon Ross /* Call libc`assfail() so that mdb ::status works */ 137b819cea2SGordon Ross (void) vsnprintf(panicbuf, sizeof (panicbuf), fmt, adx); 138*8329232eSGordon Ross debug_enter(panicbuf); 139a923e7f4SJohn Levon (void) assfail(panicbuf, "(panic)", 0); 140b819cea2SGordon Ross 141b819cea2SGordon Ross abort(); /* avoid "noreturn" warnings */ 142b819cea2SGordon Ross } 143b819cea2SGordon Ross 144b819cea2SGordon Ross void 145b819cea2SGordon Ross panic(const char *fmt, ...) 146b819cea2SGordon Ross { 147b819cea2SGordon Ross va_list adx; 148b819cea2SGordon Ross 149b819cea2SGordon Ross va_start(adx, fmt); 150b819cea2SGordon Ross vpanic(fmt, adx); 151b819cea2SGordon Ross va_end(adx); 152b819cea2SGordon Ross } 153b819cea2SGordon Ross 154f06dce2cSAndrew Stormont void 155f06dce2cSAndrew Stormont fm_panic(const char *fmt, ...) 156f06dce2cSAndrew Stormont { 157f06dce2cSAndrew Stormont va_list adx; 158f06dce2cSAndrew Stormont 159f06dce2cSAndrew Stormont va_start(adx, fmt); 160f06dce2cSAndrew Stormont vpanic(fmt, adx); 161f06dce2cSAndrew Stormont va_end(adx); 162f06dce2cSAndrew Stormont } 163f06dce2cSAndrew Stormont 164b819cea2SGordon Ross void 165b819cea2SGordon Ross vcmn_err(int ce, const char *fmt, va_list adx) 166b819cea2SGordon Ross { 167b819cea2SGordon Ross 168b819cea2SGordon Ross if (ce == CE_PANIC) 169b819cea2SGordon Ross vpanic(fmt, adx); 170b819cea2SGordon Ross if (ce >= CE_IGNORE) 171b819cea2SGordon Ross return; 172b819cea2SGordon Ross 173b819cea2SGordon Ross fakekernel_cprintf(fmt, adx, ce_flags[ce] | SL_CONSOLE, 174b819cea2SGordon Ross ce_prefix[ce], ce_suffix[ce]); 175b819cea2SGordon Ross } 176b819cea2SGordon Ross 177b819cea2SGordon Ross /*PRINTFLIKE2*/ 178b819cea2SGordon Ross void 179b819cea2SGordon Ross cmn_err(int ce, const char *fmt, ...) 180b819cea2SGordon Ross { 181b819cea2SGordon Ross va_list adx; 182b819cea2SGordon Ross 183b819cea2SGordon Ross va_start(adx, fmt); 184b819cea2SGordon Ross vcmn_err(ce, fmt, adx); 185b819cea2SGordon Ross va_end(adx); 186b819cea2SGordon Ross } 187*8329232eSGordon Ross 188*8329232eSGordon Ross /* ARGSUSED */ 189*8329232eSGordon Ross void 190*8329232eSGordon Ross debug_enter(char *str) 191*8329232eSGordon Ross { 192*8329232eSGordon Ross /* Just a place for a break point. */ 193*8329232eSGordon Ross } 194