Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_freebsd_config.h @ 8867:5119c8150478
Fixed runtime handling of systems without EPOLLRDHUP support.
In 7583:efd71d49bde0 (nginx 1.17.5) along with introduction of the
ioctl(FIONREAD) support proper handling of systems without EPOLLRDHUP
support in the kernel (but with EPOLLRDHUP in headers) was broken.
Before the change, rev->available was never set to 0 unless
ngx_use_epoll_rdhup was also set (that is, runtime test for EPOLLRDHUP
introduced in 6536:f7849bfb6d21 succeeded). After the change,
rev->available might reach 0 on systems without runtime EPOLLRDHUP
support, stopping further reading in ngx_readv_chain() and ngx_unix_recv().
And, if EOF happened to be already reported along with the last event,
it is not reported again by epoll_wait(), leading to connection hangs
and timeouts on such systems.
This affects Linux kernels before 2.6.17 if nginx was compiled
with newer headers, and, more importantly, emulation layers, such as
DigitalOcean's App Platform's / gVisor's epoll emulation layer.
Fix is to explicitly check ngx_use_epoll_rdhup before the corresponding
rev->pending_eof tests in ngx_readv_chain() and ngx_unix_recv().
author | Marcus Ball <marcus.ball@live.com> |
---|---|
date | Mon, 30 May 2022 02:38:07 +0300 |
parents | 7f035fd1ec7b |
children |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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6 |
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7 |
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8 #ifndef _NGX_FREEBSD_CONFIG_H_INCLUDED_ |
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9 #define _NGX_FREEBSD_CONFIG_H_INCLUDED_ |
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10 |
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12 #include <sys/types.h> |
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13 #include <sys/time.h> |
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14 #include <unistd.h> |
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15 #include <stdarg.h> |
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16 #include <stddef.h> /* offsetof() */ |
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17 #include <stdio.h> |
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18 #include <stdlib.h> |
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19 #include <ctype.h> |
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20 #include <errno.h> |
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21 #include <string.h> |
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22 #include <signal.h> |
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23 #include <pwd.h> |
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24 #include <grp.h> |
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25 #include <dirent.h> |
727 | 26 #include <glob.h> |
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27 #include <time.h> |
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28 #include <sys/param.h> /* ALIGN() */ |
2615 | 29 #include <sys/mount.h> /* statfs() */ |
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30 |
455 | 31 #include <sys/filio.h> /* FIONBIO */ |
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32 #include <sys/uio.h> |
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33 #include <sys/stat.h> |
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34 #include <fcntl.h> |
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35 |
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36 #include <sys/wait.h> |
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37 #include <sys/mman.h> |
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38 #include <sys/resource.h> |
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39 #include <sched.h> |
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40 |
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41 #include <sys/socket.h> |
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42 #include <netinet/in.h> |
452 | 43 #include <netinet/tcp.h> /* TCP_NODELAY, TCP_NOPUSH */ |
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44 #include <arpa/inet.h> |
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45 #include <netdb.h> |
479 | 46 #include <sys/un.h> |
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47 |
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48 #include <libutil.h> /* setproctitle() before 4.1 */ |
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49 #include <osreldate.h> |
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50 #include <sys/sysctl.h> |
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51 |
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52 #include <dlfcn.h> |
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53 |
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54 |
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55 #if __FreeBSD_version < 400017 |
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56 |
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57 /* |
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58 * FreeBSD 3.x has no CMSG_SPACE() and CMSG_LEN() and has the broken CMSG_DATA() |
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59 */ |
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60 |
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61 #undef CMSG_SPACE |
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62 #define CMSG_SPACE(l) (ALIGN(sizeof(struct cmsghdr)) + ALIGN(l)) |
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63 |
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64 #undef CMSG_LEN |
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65 #define CMSG_LEN(l) (ALIGN(sizeof(struct cmsghdr)) + (l)) |
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66 |
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67 #undef CMSG_DATA |
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68 #define CMSG_DATA(cmsg) ((u_char *)(cmsg) + ALIGN(sizeof(struct cmsghdr))) |
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69 |
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70 #endif |
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71 |
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72 |
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73 #include <ngx_auto_config.h> |
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74 |
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75 |
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76 #if (NGX_HAVE_POSIX_SEM) |
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77 #include <semaphore.h> |
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78 #endif |
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79 |
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80 |
469 | 81 #if (NGX_HAVE_POLL) |
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82 #include <poll.h> |
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83 #endif |
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84 |
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85 |
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86 #if (NGX_HAVE_KQUEUE) |
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87 #include <sys/event.h> |
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88 #endif |
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89 |
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90 |
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91 #if (NGX_HAVE_FILE_AIO) |
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92 |
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93 #include <aio.h> |
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94 typedef struct aiocb ngx_aiocb_t; |
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95 |
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96 #if (__FreeBSD_version < 700005 && !defined __DragonFly__) |
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97 #define sival_ptr sigval_ptr |
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98 #endif |
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99 |
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100 #endif |
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101 |
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102 |
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103 #define NGX_LISTEN_BACKLOG -1 |
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104 |
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105 |
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106 #ifdef __DragonFly__ |
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107 #define NGX_KEEPALIVE_FACTOR 1000 |
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108 #endif |
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109 |
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110 |
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111 #ifndef IOV_MAX |
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112 #define IOV_MAX 1024 |
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113 #endif |
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114 |
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115 |
469 | 116 #ifndef NGX_HAVE_INHERITED_NONBLOCK |
117 #define NGX_HAVE_INHERITED_NONBLOCK 1 | |
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118 #endif |
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119 |
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120 |
539 | 121 #define NGX_HAVE_OS_SPECIFIC_INIT 1 |
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122 #define NGX_HAVE_DEBUG_MALLOC 1 |
539 | 123 |
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124 |
601 | 125 extern char **environ; |
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126 extern char *malloc_options; |
601 | 127 |
128 | |
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129 #endif /* _NGX_FREEBSD_CONFIG_H_INCLUDED_ */ |