Mercurial > hg > nginx-quic
annotate src/misc/ngx_google_perftools_module.c @ 8531:41f4bd4c51f1
Disabled control characters and space in header names.
Control characters (0x00-0x1f, 0x7f), space, and colon were never allowed in
header names. The only somewhat valid use is header continuation which nginx
never supported and which is explicitly obsolete by RFC 7230.
Previously, such headers were considered invalid and were ignored by default
(as per ignore_invalid_headers directive). With this change, such headers
are unconditionally rejected.
It is expected to make nginx more resilient to various attacks, in particular,
with ignore_invalid_headers switched off (which is inherently unsecure, though
nevertheless sometimes used in the wild).
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 28 Jun 2021 18:01:18 +0300 |
parents | a27e0c7e198c |
children |
rev | line source |
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1949 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
1949 | 5 */ |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 | |
11 /* | |
3478
eb8660fecc12
fix a comment and a style fix
Igor Sysoev <igor@sysoev.ru>
parents:
1949
diff
changeset
|
12 * declare Profiler interface here because |
1949 | 13 * <google/profiler.h> is C++ header file |
14 */ | |
15 | |
16 int ProfilerStart(u_char* fname); | |
17 void ProfilerStop(void); | |
18 void ProfilerRegisterThread(void); | |
19 | |
20 | |
21 static void *ngx_google_perftools_create_conf(ngx_cycle_t *cycle); | |
22 static ngx_int_t ngx_google_perftools_worker(ngx_cycle_t *cycle); | |
23 | |
24 | |
25 typedef struct { | |
26 ngx_str_t profiles; | |
27 } ngx_google_perftools_conf_t; | |
28 | |
29 | |
30 static ngx_command_t ngx_google_perftools_commands[] = { | |
31 | |
32 { ngx_string("google_perftools_profiles"), | |
33 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1, | |
34 ngx_conf_set_str_slot, | |
35 0, | |
36 offsetof(ngx_google_perftools_conf_t, profiles), | |
37 NULL }, | |
38 | |
7066
a27e0c7e198c
Style: aligned ngx_null_command.
Ruslan Ermilov <ru@nginx.com>
parents:
4412
diff
changeset
|
39 ngx_null_command |
1949 | 40 }; |
41 | |
42 | |
43 static ngx_core_module_t ngx_google_perftools_module_ctx = { | |
44 ngx_string("google_perftools"), | |
45 ngx_google_perftools_create_conf, | |
46 NULL | |
47 }; | |
48 | |
49 | |
50 ngx_module_t ngx_google_perftools_module = { | |
51 NGX_MODULE_V1, | |
52 &ngx_google_perftools_module_ctx, /* module context */ | |
53 ngx_google_perftools_commands, /* module directives */ | |
54 NGX_CORE_MODULE, /* module type */ | |
55 NULL, /* init master */ | |
56 NULL, /* init module */ | |
57 ngx_google_perftools_worker, /* init process */ | |
58 NULL, /* init thread */ | |
59 NULL, /* exit thread */ | |
60 NULL, /* exit process */ | |
61 NULL, /* exit master */ | |
62 NGX_MODULE_V1_PADDING | |
63 }; | |
64 | |
65 | |
66 static void * | |
67 ngx_google_perftools_create_conf(ngx_cycle_t *cycle) | |
68 { | |
69 ngx_google_perftools_conf_t *gptcf; | |
70 | |
71 gptcf = ngx_pcalloc(cycle->pool, sizeof(ngx_google_perftools_conf_t)); | |
72 if (gptcf == NULL) { | |
73 return NULL; | |
74 } | |
75 | |
76 /* | |
3480 | 77 * set by ngx_pcalloc() |
1949 | 78 * |
79 * gptcf->profiles = { 0, NULL }; | |
80 */ | |
81 | |
82 return gptcf; | |
83 } | |
84 | |
85 | |
86 static ngx_int_t | |
87 ngx_google_perftools_worker(ngx_cycle_t *cycle) | |
88 { | |
89 u_char *profile; | |
90 ngx_google_perftools_conf_t *gptcf; | |
91 | |
92 gptcf = (ngx_google_perftools_conf_t *) | |
93 ngx_get_conf(cycle->conf_ctx, ngx_google_perftools_module); | |
94 | |
95 if (gptcf->profiles.len == 0) { | |
96 return NGX_OK; | |
97 } | |
98 | |
99 profile = ngx_alloc(gptcf->profiles.len + NGX_INT_T_LEN + 2, cycle->log); | |
100 if (profile == NULL) { | |
101 return NGX_OK; | |
102 } | |
103 | |
104 if (getenv("CPUPROFILE")) { | |
105 /* disable inherited Profiler enabled in master process */ | |
106 ProfilerStop(); | |
107 } | |
108 | |
109 ngx_sprintf(profile, "%V.%d%Z", &gptcf->profiles, ngx_pid); | |
110 | |
111 if (ProfilerStart(profile)) { | |
112 /* start ITIMER_PROF timer */ | |
113 ProfilerRegisterThread(); | |
114 | |
115 } else { | |
116 ngx_log_error(NGX_LOG_CRIT, cycle->log, ngx_errno, | |
117 "ProfilerStart(%s) failed", profile); | |
118 } | |
119 | |
120 ngx_free(profile); | |
121 | |
122 return NGX_OK; | |
123 } | |
124 | |
125 | |
126 /* ProfilerStop() is called on Profiler destruction */ |