Mercurial > hg > nginx-quic
annotate auto/os/linux @ 8437:d5f93733c17d quic
QUIC: relaxed client id requirements.
Client IDs cannot be reused on different paths. This change allows to reuse
client id previosly seen on the same path (but with different dcid) in case
when no unused client IDs are available.
author | Vladimir Homutov <vl@nginx.com> |
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date | Wed, 05 May 2021 18:11:55 +0300 |
parents | 7f95010f10b7 |
children | bb5152ed045b |
rev | line source |
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444
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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 |
509 | 6 have=NGX_LINUX . auto/have_headers |
455 | 7 |
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8 CORE_INCS="$UNIX_INCS" |
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9 CORE_DEPS="$UNIX_DEPS $LINUX_DEPS" |
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10 CORE_SRCS="$UNIX_SRCS $LINUX_SRCS" |
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11 |
455 | 12 ngx_spacer=' |
13 ' | |
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14 |
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15 cc_aux_flags="$CC_AUX_FLAGS" |
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16 CC_AUX_FLAGS="$cc_aux_flags -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64" |
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17 |
461 | 18 |
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19 # Linux kernel version |
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20 |
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21 version=$((`uname -r \ |
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22 | sed -n -e 's/^\([0-9][0-9]*\)\.\([0-9][0-9]*\)\.\([0-9][0-9]*\).*/ \ |
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23 \1*256*256+\2*256+\3/p' \ |
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24 -e 's/^\([0-9][0-9]*\)\.\([0-9][0-9]*\).*/\1*256*256+\2*256/p'`)) |
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477 | 26 version=${version:-0} |
27 | |
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28 |
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29 # posix_fadvise64() had been implemented in 2.5.60 |
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30 |
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31 if [ $version -lt 132412 ]; then |
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32 have=NGX_HAVE_POSIX_FADVISE . auto/nohave |
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33 fi |
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34 |
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35 # epoll, EPOLLET version |
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36 |
455 | 37 ngx_feature="epoll" |
469 | 38 ngx_feature_name="NGX_HAVE_EPOLL" |
591 | 39 ngx_feature_run=yes |
455 | 40 ngx_feature_incs="#include <sys/epoll.h>" |
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41 ngx_feature_path= |
455 | 42 ngx_feature_libs= |
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43 ngx_feature_test="int efd = 0; |
455 | 44 struct epoll_event ee; |
45 ee.events = EPOLLIN|EPOLLOUT|EPOLLET; | |
46 ee.data.ptr = NULL; | |
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47 (void) ee; |
455 | 48 efd = epoll_create(100); |
49 if (efd == -1) return 1;" | |
50 . auto/feature | |
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51 |
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52 if [ $ngx_found = yes ]; then |
469 | 53 have=NGX_HAVE_CLEAR_EVENT . auto/have |
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54 CORE_SRCS="$CORE_SRCS $EPOLL_SRCS" |
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55 EVENT_MODULES="$EVENT_MODULES $EPOLL_MODULE" |
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56 EVENT_FOUND=YES |
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57 |
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58 |
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59 # EPOLLRDHUP appeared in Linux 2.6.17, glibc 2.8 |
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60 |
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61 ngx_feature="EPOLLRDHUP" |
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62 ngx_feature_name="NGX_HAVE_EPOLLRDHUP" |
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63 ngx_feature_run=no |
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64 ngx_feature_incs="#include <sys/epoll.h>" |
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65 ngx_feature_path= |
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66 ngx_feature_libs= |
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67 ngx_feature_test="int efd = 0, fd = 0; |
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68 struct epoll_event ee; |
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69 ee.events = EPOLLIN|EPOLLRDHUP|EPOLLET; |
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70 ee.data.ptr = NULL; |
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71 epoll_ctl(efd, EPOLL_CTL_ADD, fd, &ee)" |
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72 . auto/feature |
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73 |
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74 |
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75 # EPOLLEXCLUSIVE appeared in Linux 4.5, glibc 2.24 |
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76 |
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77 ngx_feature="EPOLLEXCLUSIVE" |
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78 ngx_feature_name="NGX_HAVE_EPOLLEXCLUSIVE" |
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79 ngx_feature_run=no |
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80 ngx_feature_incs="#include <sys/epoll.h>" |
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81 ngx_feature_path= |
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82 ngx_feature_libs= |
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83 ngx_feature_test="int efd = 0, fd = 0; |
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84 struct epoll_event ee; |
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85 ee.events = EPOLLIN|EPOLLEXCLUSIVE; |
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86 ee.data.ptr = NULL; |
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87 epoll_ctl(efd, EPOLL_CTL_ADD, fd, &ee)" |
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88 . auto/feature |
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89 |
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90 |
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91 # eventfd() |
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92 |
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93 ngx_feature="eventfd()" |
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94 ngx_feature_name="NGX_HAVE_EVENTFD" |
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95 ngx_feature_run=no |
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96 ngx_feature_incs="#include <sys/eventfd.h>" |
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97 ngx_feature_path= |
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98 ngx_feature_libs= |
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99 ngx_feature_test="(void) eventfd(0, 0)" |
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100 . auto/feature |
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101 |
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102 if [ $ngx_found = yes ]; then |
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103 have=NGX_HAVE_SYS_EVENTFD_H . auto/have |
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104 fi |
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105 |
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106 |
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107 if [ $ngx_found = no ]; then |
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108 |
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109 ngx_feature="eventfd() (SYS_eventfd)" |
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110 ngx_feature_incs="#include <sys/syscall.h>" |
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111 ngx_feature_test="(void) SYS_eventfd" |
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112 . auto/feature |
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113 fi |
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114 fi |
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115 |
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116 |
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117 # O_PATH and AT_EMPTY_PATH were introduced in 2.6.39, glibc 2.14 |
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118 |
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119 ngx_feature="O_PATH" |
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120 ngx_feature_name="NGX_HAVE_O_PATH" |
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121 ngx_feature_run=no |
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122 ngx_feature_incs="#include <sys/types.h> |
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123 #include <sys/stat.h> |
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124 #include <fcntl.h>" |
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125 ngx_feature_path= |
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126 ngx_feature_libs= |
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127 ngx_feature_test="int fd; struct stat sb; |
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128 fd = openat(AT_FDCWD, \".\", O_PATH|O_DIRECTORY|O_NOFOLLOW); |
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129 if (fstatat(fd, \"\", &sb, AT_EMPTY_PATH) != 0) return 1" |
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130 . auto/feature |
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131 |
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132 |
248
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133 # sendfile() |
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134 |
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135 CC_AUX_FLAGS="$cc_aux_flags -D_GNU_SOURCE" |
455 | 136 ngx_feature="sendfile()" |
469 | 137 ngx_feature_name="NGX_HAVE_SENDFILE" |
591 | 138 ngx_feature_run=yes |
139 ngx_feature_incs="#include <sys/sendfile.h> | |
2598 | 140 #include <errno.h>" |
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141 ngx_feature_path= |
455 | 142 ngx_feature_libs= |
143 ngx_feature_test="int s = 0, fd = 1; | |
144 ssize_t n; off_t off = 0; | |
591 | 145 n = sendfile(s, fd, &off, 1); |
146 if (n == -1 && errno == ENOSYS) return 1" | |
455 | 147 . auto/feature |
248
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148 |
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149 if [ $ngx_found = yes ]; then |
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150 CORE_SRCS="$CORE_SRCS $LINUX_SENDFILE_SRCS" |
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151 fi |
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152 |
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153 |
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154 # sendfile64() |
196
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155 |
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156 CC_AUX_FLAGS="$cc_aux_flags -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64" |
455 | 157 ngx_feature="sendfile64()" |
469 | 158 ngx_feature_name="NGX_HAVE_SENDFILE64" |
591 | 159 ngx_feature_run=yes |
160 ngx_feature_incs="#include <sys/sendfile.h> | |
2598 | 161 #include <errno.h>" |
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162 ngx_feature_path= |
455 | 163 ngx_feature_libs= |
164 ngx_feature_test="int s = 0, fd = 1; | |
165 ssize_t n; off_t off = 0; | |
591 | 166 n = sendfile(s, fd, &off, 1); |
167 if (n == -1 && errno == ENOSYS) return 1" | |
455 | 168 . auto/feature |
196
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169 |
253
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170 |
455 | 171 ngx_include="sys/prctl.h"; . auto/include |
172 | |
253
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173 # prctl(PR_SET_DUMPABLE) |
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174 |
455 | 175 ngx_feature="prctl(PR_SET_DUMPABLE)" |
469 | 176 ngx_feature_name="NGX_HAVE_PR_SET_DUMPABLE" |
455 | 177 ngx_feature_run=yes |
178 ngx_feature_incs="#include <sys/prctl.h>" | |
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179 ngx_feature_path= |
455 | 180 ngx_feature_libs= |
181 ngx_feature_test="if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) return 1" | |
182 . auto/feature | |
577 | 183 |
184 | |
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185 # prctl(PR_SET_KEEPCAPS) |
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186 |
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187 ngx_feature="prctl(PR_SET_KEEPCAPS)" |
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188 ngx_feature_name="NGX_HAVE_PR_SET_KEEPCAPS" |
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189 ngx_feature_run=yes |
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190 ngx_feature_incs="#include <sys/prctl.h>" |
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191 ngx_feature_path= |
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192 ngx_feature_libs= |
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193 ngx_feature_test="if (prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0) == -1) return 1" |
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194 . auto/feature |
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195 |
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196 |
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197 # capabilities |
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198 |
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199 ngx_feature="capabilities" |
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200 ngx_feature_name="NGX_HAVE_CAPABILITIES" |
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201 ngx_feature_run=no |
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202 ngx_feature_incs="#include <linux/capability.h> |
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203 #include <sys/syscall.h>" |
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204 ngx_feature_path= |
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205 ngx_feature_libs= |
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206 ngx_feature_test="struct __user_cap_data_struct data; |
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207 struct __user_cap_header_struct header; |
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208 |
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209 header.version = _LINUX_CAPABILITY_VERSION_1; |
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210 data.effective = CAP_TO_MASK(CAP_NET_RAW); |
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211 data.permitted = 0; |
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212 |
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213 (void) header; |
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214 (void) data; |
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215 (void) SYS_capset" |
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216 . auto/feature |
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217 |
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218 |
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219 # crypt_r() |
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220 |
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221 ngx_feature="crypt_r()" |
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222 ngx_feature_name="NGX_HAVE_GNU_CRYPT_R" |
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223 ngx_feature_run=no |
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224 ngx_feature_incs="#include <crypt.h>" |
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225 ngx_feature_path= |
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226 ngx_feature_libs=-lcrypt |
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227 ngx_feature_test="struct crypt_data cd; |
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228 crypt_r(\"key\", \"salt\", &cd);" |
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229 . auto/feature |
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230 |
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231 |
2615 | 232 ngx_include="sys/vfs.h"; . auto/include |
233 | |
234 | |
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235 CC_AUX_FLAGS="$cc_aux_flags -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64" |
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236 |
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237 |
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238 # (E)BPF |
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239 |
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240 ngx_feature="BPF support" |
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241 ngx_feature_name="NGX_HAVE_BPF" |
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242 ngx_feature_run=no |
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243 ngx_feature_incs="#include <linux/bpf.h> |
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244 #include <sys/syscall.h>" |
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245 ngx_feature_path= |
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246 ngx_feature_libs= |
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247 ngx_feature_test=" |
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248 union bpf_attr attr = { 0 }; |
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249 /* only declare BPF support if all required features found */ |
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250 attr.map_flags = 0; |
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251 attr.map_type = BPF_MAP_TYPE_SOCKHASH; |
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252 syscall(__NR_bpf, 0, &attr, 0);" |
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253 |
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254 . auto/feature |
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255 |
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256 if [ $ngx_found = yes ]; then |
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257 BPF_FOUND=YES |
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258 |
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259 CORE_SRCS="$CORE_SRCS src/core/ngx_bpf.c" |
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260 CORE_DEPS="$CORE_DEPS src/core/ngx_bpf.h" |
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261 fi |
8269
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262 |
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263 |
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264 # SO_COOKIE socket option |
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265 |
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266 ngx_feature="SO_COOKIE" |
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267 ngx_feature_name="NGX_HAVE_SO_COOKIE" |
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268 ngx_feature_run=no |
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269 ngx_feature_incs="#include <sys/socket.h> |
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270 #include <stdint.h>" |
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271 ngx_feature_path= |
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272 ngx_feature_libs= |
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273 ngx_feature_test="socklen_t optlen = sizeof(uint64_t); |
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274 uint64_t cookie; |
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275 getsockopt(0, SOL_SOCKET, SO_COOKIE, &cookie, &optlen)" |
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276 . auto/feature |
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277 |
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278 if [ $ngx_found = yes ]; then |
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279 SO_COOKIE_FOUND=YES |
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280 have=NGX_HAVE_SO_COOKIE . auto/have |
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281 fi |
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282 |
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283 |
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284 # ngx_quic_bpf module uses sockhash to select socket from reuseport group, |
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285 # support appeared in Linux-5.7: |
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286 # |
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287 # commit: 9fed9000c5c6cacfcaaa48aff74818072ae294cc |
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288 # bpf: Allow selecting reuseport socket from a SOCKMAP/SOCKHASH |
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289 # |
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290 if [ $NGX_QUIC_BPF$BPF_FOUND = YESYES ]; then |
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291 echo $ngx_n "checking for kernel with reuseport/BPF support...$ngx_c" |
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292 if [ $version -lt 329472 ]; then |
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293 echo " not found (at least 5.7 is required)" |
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294 NGX_QUIC_BPF=NO |
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295 else |
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296 echo " found" |
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297 fi |
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298 fi |
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299 |