Mercurial > hg > nginx
annotate src/os/win32/ngx_event_log.c @ 8971:1e2f4e9c8195 quic
QUIC: reworked migration handling.
The quic connection now holds active, backup and probe paths instead
of sockets. The number of migration paths is now limited and cannot
be inflated by a bad client or an attacker.
The client id is now associated with path rather than socket. This allows
to simplify processing of output and connection ids handling.
New migration abandons any previously started migrations. This allows to
free consumed client ids and request new for use in future migrations and
make progress in case when connection id limit is hit during migration.
A path now can be revalidated without losing its state.
The patch also fixes various issues with NAT rebinding case handling:
- paths are now validated (previously, there was no validation
and paths were left in limited state)
- attempt to reuse id on different path is now again verified
(this was broken in 40445fc7c403)
- former path is now validated in case of apparent migration
| author | Vladimir Homutov <vl@nginx.com> |
|---|---|
| date | Wed, 19 Jan 2022 22:39:24 +0300 |
| parents | d620f497c50f |
| children |
| rev | line source |
|---|---|
| 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 } |