Mercurial > hg > nginx-quic
annotate src/os/win32/ngx_event_log.c @ 8945:043006e5a0b1
SSL: optimized rotation of session ticket keys.
Instead of syncing keys with shared memory on each ticket operation,
the code now does this only when the worker is going to change expiration
of the current key, or going to switch to a new key: that is, usually
at most once per second.
To do so without races, the code maintains 3 keys: current, previous,
and next. If a worker will switch to the next key earlier, other workers
will still be able to decrypt new tickets, since they will be encrypted
with the next key.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Wed, 12 Oct 2022 20:14:55 +0300 |
parents | d620f497c50f |
children |
rev | line source |
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2725 | 1 /* |
2 * Copyright (C) Igor Sysoev | |
4412 | 3 * Copyright (C) Nginx, Inc. |
2725 | 4 */ |
5 | |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
9 | |
10 | |
11 #define NGX_MAX_ERROR_STR 2048 | |
12 | |
13 | |
14 void ngx_cdecl | |
15 ngx_event_log(ngx_err_t err, const char *fmt, ...) | |
16 { | |
17 u_char *p, *last; | |
18 long types; | |
19 HKEY key; | |
20 HANDLE ev; | |
21 va_list args; | |
22 u_char text[NGX_MAX_ERROR_STR]; | |
23 const char *msgarg[9]; | |
24 static u_char netmsg[] = "%SystemRoot%\\System32\\netmsg.dll"; | |
25 | |
2764
d4a717592877
use ngx_vslprintf(), ngx_slprintf()
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
26 last = text + NGX_MAX_ERROR_STR; |
2725 | 27 p = text + GetModuleFileName(NULL, (char *) text, NGX_MAX_ERROR_STR - 50); |
28 | |
29 *p++ = ':'; | |
30 ngx_linefeed(p); | |
31 | |
32 va_start(args, fmt); | |
2764
d4a717592877
use ngx_vslprintf(), ngx_slprintf()
Igor Sysoev <igor@sysoev.ru>
parents:
2725
diff
changeset
|
33 p = ngx_vslprintf(p, last, fmt, args); |
2725 | 34 va_end(args); |
35 | |
36 if (err) { | |
2765 | 37 p = ngx_log_errno(p, last, err); |
2725 | 38 } |
39 | |
40 if (p > last - NGX_LINEFEED_SIZE - 1) { | |
41 p = last - NGX_LINEFEED_SIZE - 1; | |
42 } | |
43 | |
44 ngx_linefeed(p); | |
45 | |
46 *p = '\0'; | |
47 | |
48 /* | |
49 * we do not log errors here since we use | |
50 * Event Log only to log our own logs open errors | |
51 */ | |
52 | |
53 if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, | |
54 "SYSTEM\\CurrentControlSet\\Services\\EventLog\\Application\\nginx", | |
55 0, NULL, REG_OPTION_NON_VOLATILE, KEY_SET_VALUE, NULL, &key, NULL) | |
56 != 0) | |
57 { | |
58 return; | |
59 } | |
60 | |
61 if (RegSetValueEx(key, "EventMessageFile", 0, REG_EXPAND_SZ, | |
62 netmsg, sizeof(netmsg) - 1) | |
63 != 0) | |
64 { | |
65 return; | |
66 } | |
67 | |
68 types = EVENTLOG_ERROR_TYPE; | |
69 | |
70 if (RegSetValueEx(key, "TypesSupported", 0, REG_DWORD, | |
71 (u_char *) &types, sizeof(long)) | |
72 != 0) | |
73 { | |
74 return; | |
75 } | |
76 | |
77 RegCloseKey(key); | |
78 | |
79 ev = RegisterEventSource(NULL, "nginx"); | |
80 | |
81 msgarg[0] = (char *) text; | |
82 msgarg[1] = NULL; | |
83 msgarg[2] = NULL; | |
84 msgarg[3] = NULL; | |
85 msgarg[4] = NULL; | |
86 msgarg[5] = NULL; | |
87 msgarg[6] = NULL; | |
88 msgarg[7] = NULL; | |
89 msgarg[8] = NULL; | |
90 | |
91 /* | |
92 * the 3299 event id in netmsg.dll has the generic message format: | |
93 * "%1 %2 %3 %4 %5 %6 %7 %8 %9" | |
94 */ | |
95 | |
96 ReportEvent(ev, EVENTLOG_ERROR_TYPE, 0, 3299, NULL, 9, 0, msgarg, NULL); | |
97 | |
98 DeregisterEventSource(ev); | |
99 } |