Mercurial > hg > nginx
annotate src/mail/ngx_mail_imap_module.h @ 8106:8852f39311de
Fixed segfault when switching off master process during upgrade.
Binary upgrades are not supported without master process, but it is,
however, possible, that nginx running with master process is asked
to upgrade binary, and the configuration file as available on disk
at this time includes "master_process off;".
If this happens, listening sockets inherited from the previous binary
will have ls[i].previous set. But the old cycle on initial process
startup, including startup after binary upgrade, is destroyed by
ngx_init_cycle() once configuration parsing is complete. As a result,
an attempt to dereference ls[i].previous in ngx_event_process_init()
accesses already freed memory.
Fix is to avoid looking into ls[i].previous if the old cycle is already
freed.
With this change it is also no longer needed to clear ls[i].previous in
worker processes, so the relevant code was removed.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Wed, 23 Nov 2022 23:48:53 +0300 |
parents | d620f497c50f |
children |
rev | line source |
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ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
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5 */ |
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8 #ifndef _NGX_MAIL_IMAP_MODULE_H_INCLUDED_ |
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9 #define _NGX_MAIL_IMAP_MODULE_H_INCLUDED_ |
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12 #include <ngx_config.h> |
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13 #include <ngx_core.h> |
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14 #include <ngx_mail.h> |
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17 typedef struct { |
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18 size_t client_buffer_size; |
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20 ngx_str_t capability; |
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21 ngx_str_t starttls_capability; |
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22 ngx_str_t starttls_only_capability; |
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24 ngx_uint_t auth_methods; |
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26 ngx_array_t capabilities; |
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27 } ngx_mail_imap_srv_conf_t; |
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30 void ngx_mail_imap_init_session(ngx_mail_session_t *s, ngx_connection_t *c); |
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31 void ngx_mail_imap_init_protocol(ngx_event_t *rev); |
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32 void ngx_mail_imap_auth_state(ngx_event_t *rev); |
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33 ngx_int_t ngx_mail_imap_parse_command(ngx_mail_session_t *s); |
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parents:
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36 extern ngx_module_t ngx_mail_imap_module; |
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
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parents:
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f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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38 |
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
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39 #endif /* _NGX_MAIL_IMAP_MODULE_H_INCLUDED_ */ |