Mercurial > hg > nginx-quic
annotate auto/endianness @ 8895:457afc332c67
Stream: don't flush empty buffers created for read errors.
When we generate the last_buf buffer for an UDP upstream recv error, it does
not contain any data from the wire. ngx_stream_write_filter attempts to forward
it anyways, which is incorrect (e.g., UDP upstream ECONNREFUSED will be
translated to an empty packet).
This happens because we mark the buffer as both 'flush' and 'last_buf', and
ngx_stream_write_filter has special handling for flush with certain types of
connections (see d127837c714f, 32b0ba4855a6). The flags are meant to be
mutually exclusive, so the fix is to ensure that flush and last_buf are not set
at the same time.
Reproduction:
stream {
upstream unreachable {
server 127.0.0.1:8880;
}
server {
listen 127.0.0.1:8998 udp;
proxy_pass unreachable;
}
}
1 0.000000000 127.0.0.1 → 127.0.0.1 UDP 47 45588 → 8998 Len=5
2 0.000166300 127.0.0.1 → 127.0.0.1 UDP 47 51149 → 8880 Len=5
3 0.000172600 127.0.0.1 → 127.0.0.1 ICMP 75 Destination unreachable (Port
unreachable)
4 0.000202400 127.0.0.1 → 127.0.0.1 UDP 42 8998 → 45588 Len=0
Fixes d127837c714f.
author | Aleksei Bavshin <a.bavshin@f5.com> |
---|---|
date | Mon, 23 May 2022 11:29:44 -0700 |
parents | e3faa5fb7772 |
children |
rev | line source |
---|---|
444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
370
diff
changeset
|
1 |
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
370
diff
changeset
|
2 # Copyright (C) Igor Sysoev |
4412 | 3 # Copyright (C) Nginx, Inc. |
444
42d11f017717
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
Igor Sysoev <igor@sysoev.ru>
parents:
370
diff
changeset
|
4 |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
5 |
4681
bb37a9cc08fb
Fixed spelling of "endianness", and called it "byte ordering" in the
Ruslan Ermilov <ru@nginx.com>
parents:
4412
diff
changeset
|
6 echo $ngx_n "checking for system byte ordering ...$ngx_c" |
6269
7ec809b579d7
Configure: style fixes for autoconf.err.
Piotr Sikora <piotrsikora@google.com>
parents:
5309
diff
changeset
|
7 |
7ec809b579d7
Configure: style fixes for autoconf.err.
Piotr Sikora <piotrsikora@google.com>
parents:
5309
diff
changeset
|
8 cat << END >> $NGX_AUTOCONF_ERR |
7ec809b579d7
Configure: style fixes for autoconf.err.
Piotr Sikora <piotrsikora@google.com>
parents:
5309
diff
changeset
|
9 |
7ec809b579d7
Configure: style fixes for autoconf.err.
Piotr Sikora <piotrsikora@google.com>
parents:
5309
diff
changeset
|
10 ---------------------------------------- |
7ec809b579d7
Configure: style fixes for autoconf.err.
Piotr Sikora <piotrsikora@google.com>
parents:
5309
diff
changeset
|
11 checking for system byte ordering |
7ec809b579d7
Configure: style fixes for autoconf.err.
Piotr Sikora <piotrsikora@google.com>
parents:
5309
diff
changeset
|
12 |
7ec809b579d7
Configure: style fixes for autoconf.err.
Piotr Sikora <piotrsikora@google.com>
parents:
5309
diff
changeset
|
13 END |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
14 |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
15 |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
16 cat << END > $NGX_AUTOTEST.c |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
17 |
6624
e3faa5fb7772
Configure: fix build with -Werror=old-style-definition.
Piotr Sikora <piotrsikora@google.com>
parents:
6269
diff
changeset
|
18 int main(void) { |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
19 int i = 0x11223344; |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
20 char *p; |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
21 |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
22 p = (char *) &i; |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
23 if (*p == 0x44) return 0; |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
24 return 1; |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
25 } |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
26 |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
27 END |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
28 |
583 | 29 ngx_test="$CC $CC_TEST_FLAGS $CC_AUX_FLAGS \ |
577 | 30 -o $NGX_AUTOTEST $NGX_AUTOTEST.c $NGX_LD_OPT $ngx_feature_libs" |
31 | |
32 eval "$ngx_test >> $NGX_AUTOCONF_ERR 2>&1" | |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
33 |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
34 if [ -x $NGX_AUTOTEST ]; then |
703 | 35 if $NGX_AUTOTEST >/dev/null 2>&1; then |
4681
bb37a9cc08fb
Fixed spelling of "endianness", and called it "byte ordering" in the
Ruslan Ermilov <ru@nginx.com>
parents:
4412
diff
changeset
|
36 echo " little endian" |
469 | 37 have=NGX_HAVE_LITTLE_ENDIAN . auto/have |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
38 else |
4681
bb37a9cc08fb
Fixed spelling of "endianness", and called it "byte ordering" in the
Ruslan Ermilov <ru@nginx.com>
parents:
4412
diff
changeset
|
39 echo " big endian" |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
40 fi |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
41 |
5309
434548349838
Configure: fixed autotest cleanup commands.
Sergey Kandaurov <pluknet@nginx.com>
parents:
4681
diff
changeset
|
42 rm -rf $NGX_AUTOTEST* |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
43 |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
44 else |
5309
434548349838
Configure: fixed autotest cleanup commands.
Sergey Kandaurov <pluknet@nginx.com>
parents:
4681
diff
changeset
|
45 rm -rf $NGX_AUTOTEST* |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
46 |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
47 echo |
4681
bb37a9cc08fb
Fixed spelling of "endianness", and called it "byte ordering" in the
Ruslan Ermilov <ru@nginx.com>
parents:
4412
diff
changeset
|
48 echo "$0: error: cannot detect system byte ordering" |
370
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
49 exit 1 |
54f76b0b8dca
nginx-0.0.7-2004-06-27-22:01:57 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
50 fi |