Mercurial > hg > nginx
annotate src/event/quic/ngx_event_quic_protection.h @ 9204:631ee3c6d38c
Upstream: fixed usage of closed sockets with filter finalization.
When filter finalization is triggered when working with an upstream server,
and error_page redirects request processing to some simple handler,
ngx_http_request_finalize() triggers request termination when the response
is sent. In particular, via the upstream cleanup handler, nginx will close
the upstream connection and the corresponding socket.
Still, this can happen to be with ngx_event_pipe() on stack. While
the code will set p->downstream_error due to NGX_ERROR returned from the
output filter chain by filter finalization, otherwise the error will be
ignored till control returns to ngx_http_upstream_process_request().
And event pipe might try reading from the (already closed) socket, resulting
in "readv() failed (9: Bad file descriptor) while reading upstream" errors
(or even segfaults with SSL).
Such errors were seen with the following configuration:
location /t2 {
proxy_pass http://127.0.0.1:8080/big;
image_filter_buffer 10m;
image_filter resize 150 100;
error_page 415 = /empty;
}
location /empty {
return 204;
}
location /big {
# big enough static file
}
Fix is to clear p->upstream in ngx_http_upstream_finalize_request(),
and ensure that p->upstream is checked in ngx_event_pipe_read_upstream()
and when handling events at ngx_event_pipe() exit.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Tue, 30 Jan 2024 03:20:10 +0300 |
parents | 22d110af473c |
children |
rev | line source |
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8221
69345a26ba69
Split transport and crypto parts into separate files.
Vladimir Homutov <vl@nginx.com>
parents:
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1 |
69345a26ba69
Split transport and crypto parts into separate files.
Vladimir Homutov <vl@nginx.com>
parents:
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2 /* |
69345a26ba69
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Vladimir Homutov <vl@nginx.com>
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3 * Copyright (C) Nginx, Inc. |
69345a26ba69
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Vladimir Homutov <vl@nginx.com>
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4 */ |
69345a26ba69
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Vladimir Homutov <vl@nginx.com>
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5 |
69345a26ba69
Split transport and crypto parts into separate files.
Vladimir Homutov <vl@nginx.com>
parents:
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6 |
69345a26ba69
Split transport and crypto parts into separate files.
Vladimir Homutov <vl@nginx.com>
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7 #ifndef _NGX_EVENT_QUIC_PROTECTION_H_INCLUDED_ |
69345a26ba69
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parents:
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8 #define _NGX_EVENT_QUIC_PROTECTION_H_INCLUDED_ |
69345a26ba69
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9 |
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Vladimir Homutov <vl@nginx.com>
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10 |
8347
a5141e6b3214
Fixed includes in quic headers.
Roman Arutyunyan <arut@nginx.com>
parents:
8339
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11 #include <ngx_config.h> |
a5141e6b3214
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parents:
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12 #include <ngx_core.h> |
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13 |
8694
cef042935003
QUIC: the "quic_host_key" directive.
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parents:
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14 #include <ngx_event_quic_transport.h> |
cef042935003
QUIC: the "quic_host_key" directive.
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15 |
8347
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Roman Arutyunyan <arut@nginx.com>
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16 |
8306
058a5af7ddfc
Refactored QUIC secrets storage.
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17 #define NGX_QUIC_ENCRYPTION_LAST ((ssl_encryption_application) + 1) |
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18 |
9128
756ab66de10e
QUIC: TLS_AES_128_CCM_SHA256 cipher suite support.
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9126
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19 /* RFC 5116, 5.1/5.3 and RFC 8439, 2.3/2.5 for all supported ciphers */ |
9025
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20 #define NGX_QUIC_IV_LEN 12 |
9126
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21 #define NGX_QUIC_TAG_LEN 16 |
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22 |
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23 /* largest hash used in TLS is SHA-384 */ |
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24 #define NGX_QUIC_MAX_MD_SIZE 48 |
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25 |
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26 |
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27 #ifdef OPENSSL_IS_BORINGSSL |
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28 #define ngx_quic_cipher_t EVP_AEAD |
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29 #define ngx_quic_crypto_ctx_t EVP_AEAD_CTX |
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30 #else |
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31 #define ngx_quic_cipher_t EVP_CIPHER |
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32 #define ngx_quic_crypto_ctx_t EVP_CIPHER_CTX |
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33 #endif |
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34 |
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35 |
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36 typedef struct { |
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37 size_t len; |
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38 u_char data[NGX_QUIC_MAX_MD_SIZE]; |
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39 } ngx_quic_md_t; |
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40 |
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41 |
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42 typedef struct { |
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43 size_t len; |
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44 u_char data[NGX_QUIC_IV_LEN]; |
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45 } ngx_quic_iv_t; |
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46 |
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47 |
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48 typedef struct { |
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49 ngx_quic_md_t secret; |
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50 ngx_quic_iv_t iv; |
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51 ngx_quic_md_t hp; |
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parents:
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52 ngx_quic_crypto_ctx_t *ctx; |
9174
31702c53d2db
QUIC: reusing crypto contexts for header protection.
Sergey Kandaurov <pluknet@nginx.com>
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53 EVP_CIPHER_CTX *hp_ctx; |
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54 } ngx_quic_secret_t; |
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55 |
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56 |
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57 typedef struct { |
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58 ngx_quic_secret_t client; |
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59 ngx_quic_secret_t server; |
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60 } ngx_quic_secrets_t; |
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61 |
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62 |
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63 struct ngx_quic_keys_s { |
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64 ngx_quic_secrets_t secrets[NGX_QUIC_ENCRYPTION_LAST]; |
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65 ngx_quic_secrets_t next_key; |
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66 ngx_uint_t cipher; |
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67 }; |
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68 |
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69 |
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70 typedef struct { |
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71 const ngx_quic_cipher_t *c; |
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72 const EVP_CIPHER *hp; |
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73 const EVP_MD *d; |
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74 } ngx_quic_ciphers_t; |
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75 |
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76 |
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77 typedef struct { |
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78 size_t out_len; |
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79 u_char *out; |
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80 |
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81 size_t prk_len; |
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82 const uint8_t *prk; |
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83 |
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84 size_t label_len; |
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85 const u_char *label; |
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86 } ngx_quic_hkdf_t; |
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87 |
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88 #define ngx_quic_hkdf_set(seq, _label, _out, _prk) \ |
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89 (seq)->out_len = (_out)->len; (seq)->out = (_out)->data; \ |
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90 (seq)->prk_len = (_prk)->len, (seq)->prk = (_prk)->data, \ |
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91 (seq)->label_len = (sizeof(_label) - 1); (seq)->label = (u_char *)(_label); |
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92 |
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93 |
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94 ngx_int_t ngx_quic_keys_set_initial_secret(ngx_quic_keys_t *keys, |
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95 ngx_str_t *secret, ngx_log_t *log); |
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96 ngx_int_t ngx_quic_keys_set_encryption_secret(ngx_log_t *log, |
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97 ngx_uint_t is_write, ngx_quic_keys_t *keys, |
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98 enum ssl_encryption_level_t level, const SSL_CIPHER *cipher, |
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99 const uint8_t *secret, size_t secret_len); |
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100 ngx_uint_t ngx_quic_keys_available(ngx_quic_keys_t *keys, |
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QUIC: split keys availability checks to read and write sides.
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101 enum ssl_encryption_level_t level, ngx_uint_t is_write); |
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102 void ngx_quic_keys_discard(ngx_quic_keys_t *keys, |
8702
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QUIC: fixed indentation.
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103 enum ssl_encryption_level_t level); |
8621
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104 void ngx_quic_keys_switch(ngx_connection_t *c, ngx_quic_keys_t *keys); |
9152
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QUIC: posted generating TLS Key Update next keys.
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105 void ngx_quic_keys_update(ngx_event_t *ev); |
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106 void ngx_quic_keys_cleanup(ngx_quic_keys_t *keys); |
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9c3be23ddbe7
QUIC: refactored key handling.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8562
diff
changeset
|
107 ngx_int_t ngx_quic_encrypt(ngx_quic_header_t *pkt, ngx_str_t *res); |
9c3be23ddbe7
QUIC: refactored key handling.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8562
diff
changeset
|
108 ngx_int_t ngx_quic_decrypt(ngx_quic_header_t *pkt, uint64_t *largest_pn); |
9080
7da4791e0264
QUIC: OpenSSL compatibility layer.
Roman Arutyunyan <arut@nginx.com>
parents:
9025
diff
changeset
|
109 void ngx_quic_compute_nonce(u_char *nonce, size_t len, uint64_t pn); |
9176
8dacf87e4007
QUIC: simplified ngx_quic_ciphers() API.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9174
diff
changeset
|
110 ngx_int_t ngx_quic_ciphers(ngx_uint_t id, ngx_quic_ciphers_t *ciphers); |
9172
4ccb0d973206
QUIC: reusing crypto contexts for packet protection.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9171
diff
changeset
|
111 ngx_int_t ngx_quic_crypto_init(const ngx_quic_cipher_t *cipher, |
9177
22d110af473c
QUIC: removed key field from ngx_quic_secret_t.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9176
diff
changeset
|
112 ngx_quic_secret_t *s, ngx_quic_md_t *key, ngx_int_t enc, ngx_log_t *log); |
9172
4ccb0d973206
QUIC: reusing crypto contexts for packet protection.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9171
diff
changeset
|
113 ngx_int_t ngx_quic_crypto_seal(ngx_quic_secret_t *s, ngx_str_t *out, |
4ccb0d973206
QUIC: reusing crypto contexts for packet protection.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9171
diff
changeset
|
114 u_char *nonce, ngx_str_t *in, ngx_str_t *ad, ngx_log_t *log); |
4ccb0d973206
QUIC: reusing crypto contexts for packet protection.
Sergey Kandaurov <pluknet@nginx.com>
parents:
9171
diff
changeset
|
115 void ngx_quic_crypto_cleanup(ngx_quic_secret_t *s); |
9080
7da4791e0264
QUIC: OpenSSL compatibility layer.
Roman Arutyunyan <arut@nginx.com>
parents:
9025
diff
changeset
|
116 ngx_int_t ngx_quic_hkdf_expand(ngx_quic_hkdf_t *hkdf, const EVP_MD *digest, |
7da4791e0264
QUIC: OpenSSL compatibility layer.
Roman Arutyunyan <arut@nginx.com>
parents:
9025
diff
changeset
|
117 ngx_log_t *log); |
8221
69345a26ba69
Split transport and crypto parts into separate files.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
118 |
69345a26ba69
Split transport and crypto parts into separate files.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
119 |
69345a26ba69
Split transport and crypto parts into separate files.
Vladimir Homutov <vl@nginx.com>
parents:
diff
changeset
|
120 #endif /* _NGX_EVENT_QUIC_PROTECTION_H_INCLUDED_ */ |