Mercurial > hg > nginx
annotate auto/feature @ 6272:b6a665bf858a
HTTP/2: fix indirect reprioritization.
Previously, streams that were indirectly reprioritized (either because of
a new exclusive dependency on their parent or because of removal of their
parent from the dependency tree), didn't have their pointer to the parent
node updated.
This broke detection of circular dependencies and, as a result, nginx
worker would crash due to stack overflow whenever such dependency was
introduced.
Found with afl-fuzz.
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
author | Piotr Sikora <piotrsikora@google.com> |
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date | Thu, 01 Oct 2015 20:25:55 -0700 |
parents | 434548349838 |
children | e3faa5fb7772 |
rev | line source |
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1 |
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2 # Copyright (C) Igor Sysoev |
4412 | 3 # Copyright (C) Nginx, Inc. |
444
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5 |
455 | 6 echo $ngx_n "checking for $ngx_feature ...$ngx_c" |
7 | |
8 cat << END >> $NGX_AUTOCONF_ERR | |
9 | |
10 ---------------------------------------- | |
11 checking for $ngx_feature | |
12 | |
13 END | |
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14 |
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15 ngx_found=no |
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16 |
455 | 17 if test -n "$ngx_feature_name"; then |
645 | 18 ngx_have_feature=`echo $ngx_feature_name \ |
19 | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ` | |
455 | 20 fi |
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21 |
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22 if test -n "$ngx_feature_path"; then |
2139 | 23 for ngx_temp in $ngx_feature_path; do |
24 ngx_feature_inc_path="$ngx_feature_inc_path -I $ngx_temp" | |
25 done | |
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26 fi |
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27 |
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28 cat << END > $NGX_AUTOTEST.c |
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29 |
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30 #include <sys/types.h> |
455 | 31 $NGX_INCLUDE_UNISTD_H |
32 $ngx_feature_incs | |
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33 |
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34 int main() { |
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35 $ngx_feature_test; |
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36 return 0; |
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37 } |
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38 |
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39 END |
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40 |
455 | 41 |
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42 ngx_test="$CC $CC_TEST_FLAGS $CC_AUX_FLAGS $ngx_feature_inc_path \ |
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43 -o $NGX_AUTOTEST $NGX_AUTOTEST.c $NGX_TEST_LD_OPT $ngx_feature_libs" |
461 | 44 |
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45 ngx_feature_inc_path= |
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46 |
946 | 47 eval "/bin/sh -c \"$ngx_test\" >> $NGX_AUTOCONF_ERR 2>&1" |
455 | 48 |
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49 |
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50 if [ -x $NGX_AUTOTEST ]; then |
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51 |
619 | 52 case "$ngx_feature_run" in |
53 | |
54 yes) | |
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55 # /bin/sh is used to intercept "Killed" or "Abort trap" messages |
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56 if /bin/sh -c $NGX_AUTOTEST >> $NGX_AUTOCONF_ERR 2>&1; then |
619 | 57 echo " found" |
58 ngx_found=yes | |
455 | 59 |
619 | 60 if test -n "$ngx_feature_name"; then |
61 have=$ngx_have_feature . auto/have | |
62 fi | |
455 | 63 |
619 | 64 else |
65 echo " found but is not working" | |
66 fi | |
67 ;; | |
68 | |
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69 value) |
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70 # /bin/sh is used to intercept "Killed" or "Abort trap" messages |
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71 if /bin/sh -c $NGX_AUTOTEST >> $NGX_AUTOCONF_ERR 2>&1; then |
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72 echo " found" |
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73 ngx_found=yes |
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74 |
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75 cat << END >> $NGX_AUTO_CONFIG_H |
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76 |
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77 #ifndef $ngx_feature_name |
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78 #define $ngx_feature_name `$NGX_AUTOTEST` |
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79 #endif |
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80 |
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81 END |
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82 else |
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83 echo " found but is not working" |
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84 fi |
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85 ;; |
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86 |
619 | 87 bug) |
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88 # /bin/sh is used to intercept "Killed" or "Abort trap" messages |
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89 if /bin/sh -c $NGX_AUTOTEST >> $NGX_AUTOCONF_ERR 2>&1; then |
619 | 90 echo " not found" |
455 | 91 |
619 | 92 else |
93 echo " found" | |
94 ngx_found=yes | |
95 | |
96 if test -n "$ngx_feature_name"; then | |
97 have=$ngx_have_feature . auto/have | |
98 fi | |
99 fi | |
100 ;; | |
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101 |
619 | 102 *) |
103 echo " found" | |
104 ngx_found=yes | |
455 | 105 |
619 | 106 if test -n "$ngx_feature_name"; then |
107 have=$ngx_have_feature . auto/have | |
108 fi | |
109 ;; | |
455 | 110 |
619 | 111 esac |
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112 |
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113 else |
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114 echo " not found" |
455 | 115 |
116 echo "----------" >> $NGX_AUTOCONF_ERR | |
117 cat $NGX_AUTOTEST.c >> $NGX_AUTOCONF_ERR | |
118 echo "----------" >> $NGX_AUTOCONF_ERR | |
119 echo $ngx_test >> $NGX_AUTOCONF_ERR | |
120 echo "----------" >> $NGX_AUTOCONF_ERR | |
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121 fi |
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122 |
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123 rm -rf $NGX_AUTOTEST* |