| | varnish-cache/bin/varnishd/cache/cache_panic.c |
|---|
| 0 |
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/*- |
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* Copyright (c) 2006 Verdens Gang AS |
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* Copyright (c) 2006-2015 Varnish Software AS |
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* All rights reserved. |
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* |
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* Author: Dag-Erling Smørgrav <des@des.no> |
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* |
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* SPDX-License-Identifier: BSD-2-Clause |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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|
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#include "config.h" |
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|
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30 |
#include <stdio.h> |
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100 |
#include <stdlib.h> |
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100 |
#include <signal.h> |
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95 |
|
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65 |
#include "cache_varnishd.h" |
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50 |
#include "cache_transport.h" |
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35 |
|
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35 |
#include "cache_filter.h" |
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35 |
#include "common/heritage.h" |
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30 |
#include "waiter/waiter.h" |
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|
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#include "storage/storage.h" |
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#include "vcli_serve.h" |
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#include "vtim.h" |
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#include "vbt.h" |
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#include "vcs.h" |
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#include "vtcp.h" |
| 50 |
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#include "vsa.h" |
| 51 |
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|
| 52 |
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/* |
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* The panic string is constructed in a VSB, then copied to the |
| 54 |
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* shared memory. |
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* |
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* It can be extracted post-mortem from a core dump using gdb: |
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* |
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* (gdb) p *(char **)((char *)pan_vsb+8) |
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* |
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*/ |
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|
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static struct vsb pan_vsb_storage, *pan_vsb; |
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static pthread_mutex_t panicstr_mtx; |
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|
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static void pan_sess(struct vsb *, const struct sess *); |
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static void pan_req(struct vsb *, const struct req *); |
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|
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/*--------------------------------------------------------------------*/ |
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|
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static const char * |
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5 |
boc_state_2str(enum boc_state_e e) |
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{ |
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5 |
switch (e) { |
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#define BOC_STATE(U,l) case BOS_##U: return(#l); |
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#include "tbl/boc_state.h" |
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default: |
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return ("?"); |
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} |
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5 |
} |
| 80 |
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|
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/*--------------------------------------------------------------------*/ |
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|
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static void |
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35 |
pan_stream_close(struct vsb *vsb, stream_close_t sc) |
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{ |
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|
| 87 |
35 |
if (sc != NULL && sc->magic == STREAM_CLOSE_MAGIC) |
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35 |
VSB_printf(vsb, "%s(%s)", sc->name, sc->desc); |
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else |
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0 |
VSB_printf(vsb, "%p", sc); |
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35 |
} |
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|
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/*--------------------------------------------------------------------*/ |
| 94 |
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|
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static void |
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35 |
pan_storage(struct vsb *vsb, const char *n, const struct stevedore *stv) |
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{ |
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|
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35 |
if (stv != NULL && stv->magic == STEVEDORE_MAGIC) |
| 100 |
10 |
VSB_printf(vsb, "%s = %s(%s,%s),\n", |
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5 |
n, stv->name, stv->ident, stv->vclname); |
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else |
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30 |
VSB_printf(vsb, "%s = %p,\n", n, stv); |
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35 |
} |
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|
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/*--------------------------------------------------------------------*/ |
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|
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#define N_ALREADY 256 |
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static const void *already_list[N_ALREADY]; |
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static int already_idx; |
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|
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int |
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1040 |
PAN__DumpStruct(struct vsb *vsb, int block, int track, const void *ptr, |
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const char *smagic, unsigned magic, const char *fmt, ...) |
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{ |
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va_list ap; |
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const unsigned *uptr; |
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int i; |
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|
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1040 |
AN(vsb); |
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1040 |
va_start(ap, fmt); |
| 122 |
1040 |
VSB_vprintf(vsb, fmt, ap); |
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1040 |
va_end(ap); |
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1040 |
if (ptr == NULL) { |
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164 |
VSB_cat(vsb, " = NULL\n"); |
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164 |
return (-1); |
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} |
| 128 |
876 |
VSB_printf(vsb, " = %p {", ptr); |
| 129 |
876 |
if (block) |
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866 |
VSB_putc(vsb, '\n'); |
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876 |
if (track) { |
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7849 |
for (i = 0; i < already_idx; i++) { |
| 133 |
7118 |
if (already_list[i] == ptr) { |
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145 |
VSB_cat(vsb, " [Already dumped, see above]"); |
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145 |
if (block) |
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145 |
VSB_putc(vsb, '\n'); |
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145 |
VSB_cat(vsb, "},\n"); |
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145 |
return (-2); |
| 139 |
|
} |
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6973 |
} |
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731 |
if (already_idx < N_ALREADY) |
| 142 |
731 |
already_list[already_idx++] = ptr; |
| 143 |
731 |
} |
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731 |
uptr = ptr; |
| 145 |
731 |
if (*uptr != magic) { |
| 146 |
20 |
VSB_printf(vsb, " .magic = 0x%08x", *uptr); |
| 147 |
20 |
VSB_printf(vsb, " EXPECTED: %s=0x%08x", smagic, magic); |
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20 |
if (block) |
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20 |
VSB_putc(vsb, '\n'); |
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20 |
VSB_cat(vsb, "}\n"); |
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20 |
return (-3); |
| 152 |
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} |
| 153 |
711 |
if (block) |
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701 |
VSB_indent(vsb, 2); |
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711 |
return (0); |
| 156 |
1040 |
} |
| 157 |
|
|
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|
/*--------------------------------------------------------------------*/ |
| 159 |
|
|
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static void |
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35 |
pan_htc(struct vsb *vsb, const struct http_conn *htc) |
| 162 |
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{ |
| 163 |
|
|
| 164 |
35 |
if (PAN_dump_struct(vsb, htc, HTTP_CONN_MAGIC, "http_conn")) |
| 165 |
0 |
return; |
| 166 |
35 |
if (htc->rfd != NULL) |
| 167 |
30 |
VSB_printf(vsb, "fd = %d (@%p),\n", *htc->rfd, htc->rfd); |
| 168 |
35 |
VSB_cat(vsb, "doclose = "); |
| 169 |
35 |
pan_stream_close(vsb, htc->doclose); |
| 170 |
35 |
VSB_cat(vsb, "\n"); |
| 171 |
35 |
WS_Panic(vsb, htc->ws); |
| 172 |
70 |
VSB_printf(vsb, "{rxbuf_b, rxbuf_e} = {%p, %p},\n", |
| 173 |
35 |
htc->rxbuf_b, htc->rxbuf_e); |
| 174 |
70 |
VSB_printf(vsb, "{pipeline_b, pipeline_e} = {%p, %p},\n", |
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35 |
htc->pipeline_b, htc->pipeline_e); |
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70 |
VSB_printf(vsb, "content_length = %jd,\n", |
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35 |
(intmax_t)htc->content_length); |
| 178 |
70 |
VSB_printf(vsb, "body_status = %s,\n", |
| 179 |
35 |
htc->body_status ? htc->body_status->name : "NULL"); |
| 180 |
70 |
VSB_printf(vsb, "first_byte_timeout = %f,\n", |
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35 |
htc->first_byte_timeout); |
| 182 |
70 |
VSB_printf(vsb, "between_bytes_timeout = %f,\n", |
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35 |
htc->between_bytes_timeout); |
| 184 |
35 |
VSB_indent(vsb, -2); |
| 185 |
35 |
VSB_cat(vsb, "},\n"); |
| 186 |
35 |
} |
| 187 |
|
|
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|
/*--------------------------------------------------------------------*/ |
| 189 |
|
|
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|
static void |
| 191 |
50 |
pan_http(struct vsb *vsb, const char *id, const struct http *h) |
| 192 |
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{ |
| 193 |
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int i; |
| 194 |
|
|
| 195 |
50 |
if (PAN_dump_struct(vsb, h, HTTP_MAGIC, "http[%s]", id)) |
| 196 |
0 |
return; |
| 197 |
50 |
WS_Panic(vsb, h->ws); |
| 198 |
50 |
VSB_cat(vsb, "hdrs {\n"); |
| 199 |
50 |
VSB_indent(vsb, 2); |
| 200 |
565 |
for (i = 0; i < h->nhd; ++i) { |
| 201 |
515 |
if (h->hd[i].b == NULL && h->hd[i].e == NULL) |
| 202 |
100 |
continue; |
| 203 |
830 |
VSB_printf(vsb, "\"%.*s\",\n", |
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415 |
(int)(h->hd[i].e - h->hd[i].b), h->hd[i].b); |
| 205 |
415 |
} |
| 206 |
50 |
VSB_indent(vsb, -2); |
| 207 |
50 |
VSB_cat(vsb, "},\n"); |
| 208 |
50 |
VSB_indent(vsb, -2); |
| 209 |
50 |
VSB_cat(vsb, "},\n"); |
| 210 |
50 |
} |
| 211 |
|
|
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|
/*--------------------------------------------------------------------*/ |
| 213 |
|
|
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|
static void |
| 215 |
5 |
pan_boc(struct vsb *vsb, const struct boc *boc) |
| 216 |
|
{ |
| 217 |
5 |
if (PAN_dump_struct(vsb, boc, BOC_MAGIC, "boc")) |
| 218 |
0 |
return; |
| 219 |
5 |
VSB_printf(vsb, "refcnt = %u,\n", boc->refcount); |
| 220 |
5 |
VSB_printf(vsb, "state = %s,\n", boc_state_2str(boc->state)); |
| 221 |
5 |
VSB_printf(vsb, "vary = %p,\n", boc->vary); |
| 222 |
5 |
VSB_printf(vsb, "stevedore_priv = %p,\n", boc->stevedore_priv); |
| 223 |
5 |
VSB_indent(vsb, -2); |
| 224 |
5 |
VSB_cat(vsb, "},\n"); |
| 225 |
5 |
} |
| 226 |
|
|
| 227 |
|
/*--------------------------------------------------------------------*/ |
| 228 |
|
|
| 229 |
|
static void |
| 230 |
15 |
pan_objcore(struct vsb *vsb, const char *typ, const struct objcore *oc) |
| 231 |
|
{ |
| 232 |
|
const char *p; |
| 233 |
|
|
| 234 |
15 |
if (PAN_dump_struct(vsb, oc, OBJCORE_MAGIC, "objcore[%s]", typ)) |
| 235 |
0 |
return; |
| 236 |
15 |
VSB_printf(vsb, "refcnt = %d,\n", oc->refcnt); |
| 237 |
15 |
VSB_cat(vsb, "flags = {"); |
| 238 |
|
|
| 239 |
|
/*lint -save -esym(438,p) -esym(838,p) -e539 */ |
| 240 |
15 |
p = ""; |
| 241 |
|
#define OC_FLAG(U, l, v) \ |
| 242 |
|
if (oc->flags & v) { VSB_printf(vsb, "%s" #l, p); p = ", "; } |
| 243 |
|
#include "tbl/oc_flags.h" |
| 244 |
|
VSB_cat(vsb, "},\n"); |
| 245 |
|
VSB_cat(vsb, "exp_flags = {"); |
| 246 |
|
p = ""; |
| 247 |
|
#define OC_EXP_FLAG(U, l, v) \ |
| 248 |
|
if (oc->exp_flags & v) { VSB_printf(vsb, "%s" #l, p); p = ", "; } |
| 249 |
|
#include "tbl/oc_exp_flags.h" |
| 250 |
|
/*lint -restore */ |
| 251 |
|
VSB_cat(vsb, "},\n"); |
| 252 |
|
|
| 253 |
15 |
if (oc->boc != NULL) |
| 254 |
5 |
pan_boc(vsb, oc->boc); |
| 255 |
|
VSB_printf(vsb, "exp = {%f, %f, %f, %f},\n", |
| 256 |
|
oc->t_origin, oc->ttl, oc->grace, oc->keep); |
| 257 |
|
VSB_printf(vsb, "objhead = %p,\n", oc->objhead); |
| 258 |
|
VSB_printf(vsb, "stevedore = %p", oc->stobj->stevedore); |
| 259 |
15 |
if (oc->stobj->stevedore != NULL) { |
| 260 |
10 |
VSB_printf(vsb, " (%s", oc->stobj->stevedore->name); |
| 261 |
10 |
if (strlen(oc->stobj->stevedore->ident)) |
| 262 |
10 |
VSB_printf(vsb, " %s", oc->stobj->stevedore->ident); |
| 263 |
10 |
VSB_cat(vsb, ")"); |
| 264 |
10 |
if (oc->stobj->stevedore->panic) { |
| 265 |
10 |
VSB_cat(vsb, " {\n"); |
| 266 |
10 |
VSB_indent(vsb, 2); |
| 267 |
10 |
oc->stobj->stevedore->panic(vsb, oc); |
| 268 |
10 |
VSB_indent(vsb, -2); |
| 269 |
10 |
VSB_cat(vsb, "}"); |
| 270 |
10 |
} |
| 271 |
10 |
} |
| 272 |
|
VSB_cat(vsb, ",\n"); |
| 273 |
|
VSB_indent(vsb, -2); |
| 274 |
|
VSB_cat(vsb, "},\n"); |
| 275 |
|
} |
| 276 |
|
|
| 277 |
|
/*--------------------------------------------------------------------*/ |
| 278 |
|
|
| 279 |
|
static void |
| 280 |
98 |
pan_wrk(struct vsb *vsb, const struct worker *wrk) |
| 281 |
|
{ |
| 282 |
|
const char *hand; |
| 283 |
|
unsigned m, u; |
| 284 |
|
const char *p; |
| 285 |
|
|
| 286 |
98 |
if (PAN_dump_struct(vsb, wrk, WORKER_MAGIC, "worker")) |
| 287 |
63 |
return; |
| 288 |
35 |
WS_Panic(vsb, wrk->aws); |
| 289 |
|
|
| 290 |
35 |
m = wrk->cur_method; |
| 291 |
35 |
VSB_cat(vsb, "VCL::method = "); |
| 292 |
35 |
if (m == 0) { |
| 293 |
0 |
VSB_cat(vsb, "none,\n"); |
| 294 |
0 |
return; |
| 295 |
|
} |
| 296 |
35 |
if (!(m & 1)) |
| 297 |
30 |
VSB_cat(vsb, "inside "); |
| 298 |
35 |
m &= ~1; |
| 299 |
35 |
hand = VCL_Method_Name(m); |
| 300 |
35 |
if (hand != NULL) |
| 301 |
35 |
VSB_printf(vsb, "%s,\n", hand); |
| 302 |
|
else |
| 303 |
0 |
VSB_printf(vsb, "0x%x,\n", m); |
| 304 |
|
|
| 305 |
35 |
VSB_cat(vsb, "VCL::methods = {"); |
| 306 |
35 |
m = wrk->seen_methods; |
| 307 |
35 |
p = ""; |
| 308 |
225 |
for (u = 1; m ; u <<= 1) { |
| 309 |
190 |
if (m & u) { |
| 310 |
70 |
VSB_printf(vsb, "%s%s", p, VCL_Method_Name(u)); |
| 311 |
70 |
m &= ~u; |
| 312 |
70 |
p = ", "; |
| 313 |
70 |
} |
| 314 |
190 |
} |
| 315 |
35 |
VSB_cat(vsb, "},\n"); |
| 316 |
35 |
VSB_indent(vsb, -2); |
| 317 |
35 |
VSB_cat(vsb, "},\n"); |
| 318 |
98 |
} |
| 319 |
|
|
| 320 |
|
static void |
| 321 |
5 |
pan_vfp(struct vsb *vsb, const struct vfp_ctx *vfc) |
| 322 |
|
{ |
| 323 |
|
struct vfp_entry *vfe; |
| 324 |
|
|
| 325 |
5 |
if (PAN_dump_struct(vsb, vfc, VFP_CTX_MAGIC, "vfc")) |
| 326 |
0 |
return; |
| 327 |
5 |
VSB_printf(vsb, "failed = %d,\n", vfc->failed); |
| 328 |
5 |
VSB_printf(vsb, "req = %p,\n", vfc->req); |
| 329 |
5 |
VSB_printf(vsb, "resp = %p,\n", vfc->resp); |
| 330 |
5 |
VSB_printf(vsb, "wrk = %p,\n", vfc->wrk); |
| 331 |
5 |
VSB_printf(vsb, "oc = %p,\n", vfc->oc); |
| 332 |
|
|
| 333 |
5 |
if (!VTAILQ_EMPTY(&vfc->vfp)) { |
| 334 |
5 |
VSB_cat(vsb, "filters = {\n"); |
| 335 |
5 |
VSB_indent(vsb, 2); |
| 336 |
10 |
VTAILQ_FOREACH(vfe, &vfc->vfp, list) { |
| 337 |
5 |
VSB_printf(vsb, "%s = %p {\n", vfe->vfp->name, vfe); |
| 338 |
5 |
VSB_indent(vsb, 2); |
| 339 |
5 |
VSB_printf(vsb, "priv1 = %p,\n", vfe->priv1); |
| 340 |
5 |
VSB_printf(vsb, "priv2 = %zd,\n", vfe->priv2); |
| 341 |
5 |
VSB_printf(vsb, "closed = %d\n", vfe->closed); |
| 342 |
5 |
VSB_indent(vsb, -2); |
| 343 |
5 |
VSB_cat(vsb, "},\n"); |
| 344 |
5 |
} |
| 345 |
5 |
VSB_indent(vsb, -2); |
| 346 |
5 |
VSB_cat(vsb, "},\n"); |
| 347 |
5 |
} |
| 348 |
|
|
| 349 |
5 |
VSB_printf(vsb, "obj_flags = 0x%x,\n", vfc->obj_flags); |
| 350 |
5 |
VSB_indent(vsb, -2); |
| 351 |
5 |
VSB_cat(vsb, "},\n"); |
| 352 |
5 |
} |
| 353 |
|
|
| 354 |
|
static void |
| 355 |
63 |
pan_busyobj(struct vsb *vsb, const struct busyobj *bo) |
| 356 |
|
{ |
| 357 |
|
const char *p; |
| 358 |
|
const struct worker *wrk; |
| 359 |
|
|
| 360 |
63 |
if (PAN_dump_struct(vsb, bo, BUSYOBJ_MAGIC, "busyobj")) |
| 361 |
58 |
return; |
| 362 |
5 |
VSB_printf(vsb, "end = %p,\n", bo->end); |
| 363 |
5 |
VSB_printf(vsb, "retries = %u,\n", bo->retries); |
| 364 |
|
|
| 365 |
5 |
if (bo->req != NULL) |
| 366 |
0 |
pan_req(vsb, bo->req); |
| 367 |
5 |
if (bo->sp != NULL) |
| 368 |
5 |
pan_sess(vsb, bo->sp); |
| 369 |
5 |
wrk = bo->wrk; |
| 370 |
5 |
if (wrk != NULL) |
| 371 |
5 |
pan_wrk(vsb, wrk); |
| 372 |
|
|
| 373 |
5 |
if (bo->vfc != NULL) |
| 374 |
5 |
pan_vfp(vsb, bo->vfc); |
| 375 |
5 |
if (bo->vfp_filter_list != NULL) { |
| 376 |
0 |
VSB_printf(vsb, "vfp_filter_list = \"%s\",\n", |
| 377 |
0 |
bo->vfp_filter_list); |
| 378 |
0 |
} |
| 379 |
5 |
if (bo->vdp_filter_list != NULL) { |
| 380 |
0 |
VSB_printf(vsb, "vdp_filter_list = \"%s\",\n", |
| 381 |
0 |
bo->vdp_filter_list); |
| 382 |
0 |
} |
| 383 |
|
|
| 384 |
5 |
WS_Panic(vsb, bo->ws); |
| 385 |
5 |
VSB_printf(vsb, "ws_bo = %p,\n", (void *)bo->ws_bo); |
| 386 |
|
|
| 387 |
|
// bereq0 left out |
| 388 |
5 |
if (bo->bereq != NULL && bo->bereq->ws != NULL) |
| 389 |
5 |
pan_http(vsb, "bereq", bo->bereq); |
| 390 |
5 |
if (bo->beresp != NULL && bo->beresp->ws != NULL) |
| 391 |
5 |
pan_http(vsb, "beresp", bo->beresp); |
| 392 |
5 |
if (bo->stale_oc) |
| 393 |
0 |
pan_objcore(vsb, "stale_oc", bo->stale_oc); |
| 394 |
5 |
if (bo->fetch_objcore) |
| 395 |
5 |
pan_objcore(vsb, "fetch", bo->fetch_objcore); |
| 396 |
|
|
| 397 |
5 |
if (VALID_OBJ(bo->htc, HTTP_CONN_MAGIC)) |
| 398 |
5 |
pan_htc(vsb, bo->htc); |
| 399 |
|
|
| 400 |
|
// fetch_task left out |
| 401 |
|
|
| 402 |
5 |
VSB_cat(vsb, "flags = {"); |
| 403 |
5 |
p = ""; |
| 404 |
|
/*lint -save -esym(438,p) -e539 */ |
| 405 |
|
#define BERESP_FLAG(l, r, w, f, d) \ |
| 406 |
|
if (bo->l) { VSB_printf(vsb, "%s" #l, p); p = ", "; } |
| 407 |
|
#define BEREQ_FLAG(l, r, w, d) BERESP_FLAG(l, r, w, 0, d) |
| 408 |
|
#include "tbl/bereq_flags.h" |
| 409 |
|
#include "tbl/beresp_flags.h" |
| 410 |
|
/*lint -restore */ |
| 411 |
|
VSB_cat(vsb, "},\n"); |
| 412 |
|
|
| 413 |
|
// timeouts/timers/acct/storage left out |
| 414 |
|
|
| 415 |
|
pan_storage(vsb, "storage", bo->storage); |
| 416 |
|
VDI_Panic(bo->director_req, vsb, "director_req"); |
| 417 |
5 |
if (bo->director_resp == bo->director_req) |
| 418 |
5 |
VSB_cat(vsb, "director_resp = director_req,\n"); |
| 419 |
|
else |
| 420 |
0 |
VDI_Panic(bo->director_resp, vsb, "director_resp"); |
| 421 |
|
VCL_Panic(vsb, "vcl", bo->vcl); |
| 422 |
5 |
if (wrk != NULL) |
| 423 |
5 |
VPI_Panic(vsb, wrk->vpi, bo->vcl); |
| 424 |
|
|
| 425 |
|
VSB_indent(vsb, -2); |
| 426 |
|
VSB_cat(vsb, "},\n"); |
| 427 |
|
} |
| 428 |
|
|
| 429 |
|
/*--------------------------------------------------------------------*/ |
| 430 |
|
|
| 431 |
|
static void |
| 432 |
30 |
pan_top(struct vsb *vsb, const struct reqtop *top) |
| 433 |
|
{ |
| 434 |
30 |
if (PAN_dump_struct(vsb, top, REQTOP_MAGIC, "top")) |
| 435 |
0 |
return; |
| 436 |
30 |
pan_req(vsb, top->topreq); |
| 437 |
30 |
pan_privs(vsb, top->privs); |
| 438 |
30 |
VCL_Panic(vsb, "vcl0", top->vcl0); |
| 439 |
30 |
VSB_indent(vsb, -2); |
| 440 |
30 |
VSB_cat(vsb, "},\n"); |
| 441 |
30 |
} |
| 442 |
|
|
| 443 |
|
/*--------------------------------------------------------------------*/ |
| 444 |
|
|
| 445 |
|
static void |
| 446 |
93 |
pan_req(struct vsb *vsb, const struct req *req) |
| 447 |
|
{ |
| 448 |
|
const struct transport *xp; |
| 449 |
|
const struct worker *wrk; |
| 450 |
|
|
| 451 |
93 |
if (PAN_dump_struct(vsb, req, REQ_MAGIC, "req")) |
| 452 |
63 |
return; |
| 453 |
30 |
xp = req->transport; |
| 454 |
60 |
VSB_printf(vsb, "vxid = %ju, transport = %s", VXID(req->vsl->wid), |
| 455 |
30 |
xp == NULL ? "NULL" : xp->name); |
| 456 |
|
|
| 457 |
30 |
if (xp != NULL && xp->req_panic != NULL) { |
| 458 |
25 |
VSB_cat(vsb, " {\n"); |
| 459 |
25 |
VSB_indent(vsb, 2); |
| 460 |
25 |
xp->req_panic(vsb, req); |
| 461 |
25 |
VSB_indent(vsb, -2); |
| 462 |
25 |
VSB_cat(vsb, "}"); |
| 463 |
25 |
} |
| 464 |
30 |
VSB_cat(vsb, "\n"); |
| 465 |
30 |
if (req->req_step == NULL) |
| 466 |
0 |
VSB_cat(vsb, "step = R_STP_TRANSPORT\n"); |
| 467 |
|
else |
| 468 |
30 |
VSB_printf(vsb, "step = %s\n", req->req_step->name); |
| 469 |
|
|
| 470 |
30 |
if (req->vfp_filter_list != NULL) { |
| 471 |
0 |
VSB_printf(vsb, "vfp_filter_list = \"%s\",\n", |
| 472 |
0 |
req->vfp_filter_list); |
| 473 |
0 |
} |
| 474 |
30 |
if (req->vdp_filter_list != NULL) { |
| 475 |
10 |
VSB_printf(vsb, "vdp_filter_list = \"%s\",\n", |
| 476 |
5 |
req->vdp_filter_list); |
| 477 |
5 |
} |
| 478 |
|
|
| 479 |
60 |
VSB_printf(vsb, "req_body = %s,\n", |
| 480 |
30 |
req->req_body_status ? req->req_body_status->name : "NULL"); |
| 481 |
|
|
| 482 |
30 |
if (req->err_code) |
| 483 |
0 |
VSB_printf(vsb, |
| 484 |
0 |
"err_code = %d, err_reason = %s,\n", req->err_code, |
| 485 |
0 |
req->err_reason ? req->err_reason : "(null)"); |
| 486 |
|
|
| 487 |
60 |
VSB_printf(vsb, "restarts = %u, esi_level = %u,\n", |
| 488 |
30 |
req->restarts, req->esi_level); |
| 489 |
|
|
| 490 |
60 |
VSB_printf(vsb, "vary_b = %p, vary_e = %p,\n", |
| 491 |
30 |
req->vary_b, req->vary_e); |
| 492 |
|
|
| 493 |
60 |
VSB_printf(vsb, "d_ttl = %f, d_grace = %f,\n", |
| 494 |
30 |
req->d_ttl, req->d_grace); |
| 495 |
|
|
| 496 |
30 |
pan_storage(vsb, "storage", req->storage); |
| 497 |
|
|
| 498 |
30 |
VDI_Panic(req->director_hint, vsb, "director_hint"); |
| 499 |
|
|
| 500 |
30 |
if (req->sp != NULL) |
| 501 |
30 |
pan_sess(vsb, req->sp); |
| 502 |
|
|
| 503 |
30 |
wrk = req->wrk; |
| 504 |
30 |
if (wrk != NULL) |
| 505 |
30 |
pan_wrk(vsb, wrk); |
| 506 |
|
|
| 507 |
30 |
WS_Panic(vsb, req->ws); |
| 508 |
30 |
if (VALID_OBJ(req->htc, HTTP_CONN_MAGIC)) |
| 509 |
30 |
pan_htc(vsb, req->htc); |
| 510 |
30 |
pan_http(vsb, "req", req->http); |
| 511 |
30 |
if (req->resp != NULL && req->resp->ws != NULL) |
| 512 |
10 |
pan_http(vsb, "resp", req->resp); |
| 513 |
30 |
if (req->vdc != NULL) |
| 514 |
30 |
VDP_Panic(vsb, req->vdc); |
| 515 |
|
|
| 516 |
30 |
VCL_Panic(vsb, "vcl", req->vcl); |
| 517 |
30 |
if (wrk != NULL) |
| 518 |
30 |
VPI_Panic(vsb, wrk->vpi, req->vcl); |
| 519 |
|
|
| 520 |
30 |
if (req->body_oc != NULL) |
| 521 |
0 |
pan_objcore(vsb, "BODY", req->body_oc); |
| 522 |
30 |
if (req->objcore != NULL) |
| 523 |
10 |
pan_objcore(vsb, "REQ", req->objcore); |
| 524 |
|
|
| 525 |
30 |
VSB_cat(vsb, "flags = {\n"); |
| 526 |
30 |
VSB_indent(vsb, 2); |
| 527 |
|
#define REQ_FLAG(l, r, w, d) if (req->l) VSB_printf(vsb, #l ",\n"); |
| 528 |
|
#include "tbl/req_flags.h" |
| 529 |
|
VSB_indent(vsb, -2); |
| 530 |
|
VSB_cat(vsb, "},\n"); |
| 531 |
|
|
| 532 |
|
pan_privs(vsb, req->privs); |
| 533 |
|
|
| 534 |
30 |
if (req->top != NULL) |
| 535 |
30 |
pan_top(vsb, req->top); |
| 536 |
|
|
| 537 |
|
VSB_indent(vsb, -2); |
| 538 |
|
VSB_cat(vsb, "},\n"); |
| 539 |
|
} |
| 540 |
|
|
| 541 |
|
/*--------------------------------------------------------------------*/ |
| 542 |
|
|
| 543 |
|
#define pan_addr(vsb, sp, field) do { \ |
| 544 |
|
struct suckaddr *sa; \ |
| 545 |
|
char h[VTCP_ADDRBUFSIZE]; \ |
| 546 |
|
char p[VTCP_PORTBUFSIZE]; \ |
| 547 |
|
\ |
| 548 |
|
(void) SES_Get_##field##_addr((sp), &sa); \ |
| 549 |
|
if (! VSA_Sane(sa)) \ |
| 550 |
|
break; \ |
| 551 |
|
VTCP_name(sa, h, sizeof h, p, sizeof p); \ |
| 552 |
|
VSB_printf((vsb), "%s.ip = %s:%s,\n", #field, h, p); \ |
| 553 |
|
} while (0) |
| 554 |
|
|
| 555 |
|
static void |
| 556 |
35 |
pan_sess(struct vsb *vsb, const struct sess *sp) |
| 557 |
|
{ |
| 558 |
|
const char *ci; |
| 559 |
|
const char *cp; |
| 560 |
|
const struct transport *xp; |
| 561 |
|
|
| 562 |
35 |
if (PAN_dump_struct(vsb, sp, SESS_MAGIC, "sess")) |
| 563 |
0 |
return; |
| 564 |
70 |
VSB_printf(vsb, "fd = %d, vxid = %ju,\n", |
| 565 |
35 |
sp->fd, VXID(sp->vxid)); |
| 566 |
35 |
VSB_printf(vsb, "t_open = %f,\n", sp->t_open); |
| 567 |
35 |
VSB_printf(vsb, "t_idle = %f,\n", sp->t_idle); |
| 568 |
|
|
| 569 |
35 |
if (! VALID_OBJ(sp, SESS_MAGIC)) { |
| 570 |
0 |
VSB_indent(vsb, -2); |
| 571 |
0 |
VSB_cat(vsb, "},\n"); |
| 572 |
0 |
return; |
| 573 |
|
} |
| 574 |
|
|
| 575 |
35 |
WS_Panic(vsb, sp->ws); |
| 576 |
35 |
xp = XPORT_ByNumber(sp->sattr[SA_TRANSPORT]); |
| 577 |
70 |
VSB_printf(vsb, "transport = %s", |
| 578 |
35 |
xp == NULL ? "<none>" : xp->name); |
| 579 |
35 |
if (xp != NULL && xp->sess_panic != NULL) { |
| 580 |
35 |
VSB_cat(vsb, " {\n"); |
| 581 |
35 |
VSB_indent(vsb, 2); |
| 582 |
35 |
xp->sess_panic(vsb, sp); |
| 583 |
35 |
VSB_indent(vsb, -2); |
| 584 |
35 |
VSB_cat(vsb, "}"); |
| 585 |
35 |
} |
| 586 |
35 |
VSB_cat(vsb, "\n"); |
| 587 |
|
|
| 588 |
|
// duplicated below, remove ? |
| 589 |
35 |
ci = SES_Get_String_Attr(sp, SA_CLIENT_IP); |
| 590 |
35 |
cp = SES_Get_String_Attr(sp, SA_CLIENT_PORT); |
| 591 |
35 |
if (VALID_OBJ(sp->listen_sock, LISTEN_SOCK_MAGIC)) |
| 592 |
70 |
VSB_printf(vsb, "client = %s %s %s,\n", ci, cp, |
| 593 |
35 |
sp->listen_sock->endpoint); |
| 594 |
|
else |
| 595 |
0 |
VSB_printf(vsb, "client = %s %s <unknown>\n", ci, cp); |
| 596 |
|
|
| 597 |
35 |
if (VALID_OBJ(sp->listen_sock, LISTEN_SOCK_MAGIC)) { |
| 598 |
70 |
VSB_printf(vsb, "local.endpoint = %s,\n", |
| 599 |
35 |
sp->listen_sock->endpoint); |
| 600 |
70 |
VSB_printf(vsb, "local.socket = %s,\n", |
| 601 |
35 |
sp->listen_sock->name); |
| 602 |
35 |
} |
| 603 |
35 |
pan_addr(vsb, sp, local); |
| 604 |
35 |
pan_addr(vsb, sp, remote); |
| 605 |
35 |
pan_addr(vsb, sp, server); |
| 606 |
35 |
pan_addr(vsb, sp, client); |
| 607 |
|
|
| 608 |
35 |
VSB_indent(vsb, -2); |
| 609 |
35 |
VSB_cat(vsb, "},\n"); |
| 610 |
35 |
} |
| 611 |
|
|
| 612 |
|
/*--------------------------------------------------------------------*/ |
| 613 |
|
|
| 614 |
|
static void |
| 615 |
63 |
pan_backtrace(struct vsb *vsb) |
| 616 |
|
{ |
| 617 |
|
|
| 618 |
63 |
VSB_cat(vsb, "Backtrace:\n"); |
| 619 |
63 |
VSB_indent(vsb, 2); |
| 620 |
63 |
VBT_format(vsb); |
| 621 |
63 |
VSB_indent(vsb, -2); |
| 622 |
63 |
} |
| 623 |
|
|
| 624 |
|
#ifdef HAVE_PTHREAD_GETATTR_NP |
| 625 |
|
static void |
| 626 |
|
pan_threadattr(struct vsb *vsb) |
| 627 |
|
{ |
| 628 |
|
pthread_attr_t attr[1]; |
| 629 |
|
size_t sz; |
| 630 |
|
void *addr; |
| 631 |
|
|
| 632 |
|
if (pthread_getattr_np(pthread_self(), attr) != 0) |
| 633 |
|
return; |
| 634 |
|
|
| 635 |
|
VSB_cat(vsb, "pthread.attr = {\n"); |
| 636 |
|
VSB_indent(vsb, 2); |
| 637 |
|
|
| 638 |
|
if (pthread_attr_getguardsize(attr, &sz) == 0) |
| 639 |
|
VSB_printf(vsb, "guard = %zu,\n", sz); |
| 640 |
|
if (pthread_attr_getstack(attr, &addr, &sz) == 0) { |
| 641 |
|
VSB_printf(vsb, "stack_bottom = %p,\n", addr); |
| 642 |
|
VSB_printf(vsb, "stack_top = %p,\n", (char *)addr + sz); |
| 643 |
|
VSB_printf(vsb, "stack_size = %zu,\n", sz); |
| 644 |
|
} |
| 645 |
|
VSB_indent(vsb, -2); |
| 646 |
|
VSB_cat(vsb, "}\n"); |
| 647 |
|
(void) pthread_attr_destroy(attr); |
| 648 |
|
} |
| 649 |
|
#endif |
| 650 |
|
|
| 651 |
|
static void |
| 652 |
63 |
pan_argv(struct vsb *vsb) |
| 653 |
|
{ |
| 654 |
|
int i; |
| 655 |
|
|
| 656 |
63 |
VSB_cat(pan_vsb, "argv = {\n"); |
| 657 |
63 |
VSB_indent(vsb, 2); |
| 658 |
1938 |
for (i = 0; i < heritage.argc; i++) { |
| 659 |
1875 |
VSB_printf(vsb, "[%d] = ", i); |
| 660 |
1875 |
VSB_quote(vsb, heritage.argv[i], -1, VSB_QUOTE_CSTR); |
| 661 |
1875 |
VSB_cat(vsb, ",\n"); |
| 662 |
1875 |
} |
| 663 |
63 |
VSB_indent(vsb, -2); |
| 664 |
63 |
VSB_cat(vsb, "}\n"); |
| 665 |
|
|
| 666 |
63 |
} |
| 667 |
|
/*--------------------------------------------------------------------*/ |
| 668 |
|
|
| 669 |
|
static void __attribute__((__noreturn__)) |
| 670 |
63 |
pan_ic(const char *func, const char *file, int line, const char *cond, |
| 671 |
|
enum vas_e kind) |
| 672 |
|
{ |
| 673 |
|
const char *q; |
| 674 |
|
struct req *req; |
| 675 |
|
struct busyobj *bo; |
| 676 |
|
struct worker *wrk; |
| 677 |
|
struct sigaction sa; |
| 678 |
63 |
int i, err = errno; |
| 679 |
|
|
| 680 |
63 |
if (pthread_getspecific(panic_key) != NULL) { |
| 681 |
0 |
VSB_cat(pan_vsb, "\n\nPANIC REENTRANCY\n\n"); |
| 682 |
0 |
abort(); |
| 683 |
|
} |
| 684 |
|
|
| 685 |
|
/* If we already panicking in another thread, do nothing */ |
| 686 |
63 |
do { |
| 687 |
63 |
i = pthread_mutex_trylock(&panicstr_mtx); |
| 688 |
63 |
if (i != 0) |
| 689 |
0 |
sleep (1); |
| 690 |
63 |
} while (i != 0); |
| 691 |
|
|
| 692 |
63 |
assert (VSB_len(pan_vsb) == 0); |
| 693 |
|
|
| 694 |
63 |
AZ(pthread_setspecific(panic_key, pan_vsb)); |
| 695 |
|
|
| 696 |
|
/* |
| 697 |
|
* should we trigger a SIGSEGV while handling a panic, our sigsegv |
| 698 |
|
* handler would hide the panic, so we need to reset the handler to |
| 699 |
|
* default |
| 700 |
|
*/ |
| 701 |
63 |
memset(&sa, 0, sizeof sa); |
| 702 |
63 |
sa.sa_handler = SIG_DFL; |
| 703 |
63 |
(void)sigaction(SIGSEGV, &sa, NULL); |
| 704 |
|
/* Set SIGABRT back to default so the final abort() has the |
| 705 |
|
desired effect */ |
| 706 |
63 |
(void)sigaction(SIGABRT, &sa, NULL); |
| 707 |
|
|
| 708 |
63 |
switch (kind) { |
| 709 |
|
case VAS_WRONG: |
| 710 |
64 |
VSB_printf(pan_vsb, |
| 711 |
32 |
"Wrong turn at %s:%d:\n%s\n", file, line, cond); |
| 712 |
32 |
break; |
| 713 |
|
case VAS_VCL: |
| 714 |
30 |
VSB_printf(pan_vsb, |
| 715 |
15 |
"Panic from VCL:\n %s\n", cond); |
| 716 |
15 |
break; |
| 717 |
|
case VAS_MISSING: |
| 718 |
0 |
VSB_printf(pan_vsb, |
| 719 |
|
"Missing error handling code in %s(), %s line %d:\n" |
| 720 |
|
" Condition(%s) not true.\n", |
| 721 |
0 |
func, file, line, cond); |
| 722 |
0 |
break; |
| 723 |
|
case VAS_INCOMPLETE: |
| 724 |
0 |
VSB_printf(pan_vsb, |
| 725 |
|
"Incomplete code in %s(), %s line %d:\n", |
| 726 |
0 |
func, file, line); |
| 727 |
0 |
break; |
| 728 |
16 |
case VAS_ASSERT: |
| 729 |
|
default: |
| 730 |
32 |
VSB_printf(pan_vsb, |
| 731 |
|
"Assert error in %s(), %s line %d:\n" |
| 732 |
|
" Condition(%s) not true.\n", |
| 733 |
16 |
func, file, line, cond); |
| 734 |
16 |
break; |
| 735 |
|
} |
| 736 |
126 |
VSB_printf(pan_vsb, "version = %s, vrt api = %u.%u\n", |
| 737 |
63 |
VCS_String("V"), VRT_MAJOR_VERSION, VRT_MINOR_VERSION); |
| 738 |
126 |
VSB_printf(pan_vsb, "ident = %s,%s\n", |
| 739 |
63 |
heritage.ident, Waiter_GetName()); |
| 740 |
126 |
VSB_printf(pan_vsb, "now = %f (mono), %f (real)\n", |
| 741 |
63 |
VTIM_mono(), VTIM_real()); |
| 742 |
|
|
| 743 |
63 |
pan_backtrace(pan_vsb); |
| 744 |
|
|
| 745 |
63 |
if (err) |
| 746 |
6 |
VSB_printf(pan_vsb, "errno = %d (%s)\n", err, VAS_errtxt(err)); |
| 747 |
|
|
| 748 |
63 |
pan_argv(pan_vsb); |
| 749 |
|
|
| 750 |
63 |
VSB_printf(pan_vsb, "pthread.self = %p\n", TRUST_ME(pthread_self())); |
| 751 |
|
|
| 752 |
63 |
q = THR_GetName(); |
| 753 |
63 |
if (q != NULL) |
| 754 |
63 |
VSB_printf(pan_vsb, "pthread.name = (%s)\n", q); |
| 755 |
|
|
| 756 |
|
#ifdef HAVE_PTHREAD_GETATTR_NP |
| 757 |
|
pan_threadattr(pan_vsb); |
| 758 |
|
#endif |
| 759 |
|
|
| 760 |
63 |
if (!FEATURE(FEATURE_SHORT_PANIC)) { |
| 761 |
63 |
req = THR_GetRequest(); |
| 762 |
63 |
VSB_cat(pan_vsb, "thr."); |
| 763 |
63 |
pan_req(pan_vsb, req); |
| 764 |
63 |
if (req != NULL) |
| 765 |
30 |
VSL_Flush(req->vsl, 0); |
| 766 |
63 |
bo = THR_GetBusyobj(); |
| 767 |
63 |
VSB_cat(pan_vsb, "thr."); |
| 768 |
63 |
pan_busyobj(pan_vsb, bo); |
| 769 |
63 |
if (bo != NULL) |
| 770 |
5 |
VSL_Flush(bo->vsl, 0); |
| 771 |
63 |
wrk = THR_GetWorker(); |
| 772 |
63 |
VSB_cat(pan_vsb, "thr."); |
| 773 |
63 |
pan_wrk(pan_vsb, wrk); |
| 774 |
63 |
VMOD_Panic(pan_vsb); |
| 775 |
63 |
pan_pool(pan_vsb); |
| 776 |
63 |
} else { |
| 777 |
0 |
VSB_cat(pan_vsb, "Feature short panic suppressed details.\n"); |
| 778 |
|
} |
| 779 |
63 |
VSB_cat(pan_vsb, "\n"); |
| 780 |
63 |
VSB_putc(pan_vsb, '\0'); /* NUL termination */ |
| 781 |
|
|
| 782 |
63 |
v_gcov_flush(); |
| 783 |
|
|
| 784 |
|
/* |
| 785 |
|
* Do a little song and dance for static checkers which |
| 786 |
|
* are not smart enough to figure out that calling abort() |
| 787 |
|
* with a mutex held is OK and probably very intentional. |
| 788 |
|
*/ |
| 789 |
63 |
if (pthread_getspecific(panic_key)) /* ie: always */ |
| 790 |
63 |
abort(); |
| 791 |
0 |
PTOK(pthread_mutex_unlock(&panicstr_mtx)); |
| 792 |
0 |
abort(); |
| 793 |
|
} |
| 794 |
|
|
| 795 |
|
/*--------------------------------------------------------------------*/ |
| 796 |
|
|
| 797 |
|
static void v_noreturn_ v_matchproto_(cli_func_t) |
| 798 |
5 |
ccf_panic(struct cli *cli, const char * const *av, void *priv) |
| 799 |
|
{ |
| 800 |
|
|
| 801 |
5 |
(void)cli; |
| 802 |
5 |
(void)av; |
| 803 |
5 |
AZ(priv); |
| 804 |
5 |
AZ(strcmp("", "You asked for it")); |
| 805 |
|
/* NOTREACHED */ |
| 806 |
0 |
abort(); |
| 807 |
|
} |
| 808 |
|
|
| 809 |
|
/*--------------------------------------------------------------------*/ |
| 810 |
|
|
| 811 |
|
static struct cli_proto debug_cmds[] = { |
| 812 |
|
{ CLICMD_DEBUG_PANIC_WORKER, "d", ccf_panic }, |
| 813 |
|
{ NULL } |
| 814 |
|
}; |
| 815 |
|
|
| 816 |
|
/*--------------------------------------------------------------------*/ |
| 817 |
|
|
| 818 |
|
void |
| 819 |
4613 |
PAN_Init(void) |
| 820 |
|
{ |
| 821 |
|
|
| 822 |
4613 |
PTOK(pthread_mutex_init(&panicstr_mtx, &mtxattr_errorcheck)); |
| 823 |
4613 |
VAS_Fail_Func = pan_ic; |
| 824 |
4613 |
pan_vsb = &pan_vsb_storage; |
| 825 |
4613 |
AN(heritage.panic_str); |
| 826 |
4613 |
AN(heritage.panic_str_len); |
| 827 |
4613 |
AN(VSB_init(pan_vsb, heritage.panic_str, heritage.panic_str_len)); |
| 828 |
4613 |
VSB_cat(pan_vsb, "This is a test\n"); |
| 829 |
4613 |
AZ(VSB_finish(pan_vsb)); |
| 830 |
4613 |
VSB_clear(pan_vsb); |
| 831 |
4613 |
heritage.panic_str[0] = '\0'; |
| 832 |
4613 |
CLI_AddFuncs(debug_cmds); |
| 833 |
4613 |
} |