annotate src/core/ngx_array.h @ 6982:ac9b1df5b246

SSL: disabled renegotiation detection in client mode. CVE-2009-3555 is no longer relevant and mitigated by the renegotiation info extension (secure renegotiation). On the other hand, unexpected renegotiation still introduces potential security risks, and hence we do not allow renegotiation on the server side, as we never request renegotiation. On the client side the situation is different though. There are backends which explicitly request renegotiation, and disabled renegotiation introduces interoperability problems. This change allows renegotiation on the client side, and fixes interoperability problems as observed with such backends (ticket #872). Additionally, with TLSv1.3 the SSL_CB_HANDSHAKE_START flag is currently set by OpenSSL when receiving a NewSessionTicket message, and was detected by nginx as a renegotiation attempt. This looks like a bug in OpenSSL, though this change also allows better interoperability till the problem is fixed.
author Sergey Kandaurov <pluknet@nginx.com>
date Tue, 18 Apr 2017 16:08:44 +0300
parents 65b895cd0dfa
children
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2 /*
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3 * Copyright (C) Igor Sysoev
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d620f497c50f Copyright updated.
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4 * Copyright (C) Nginx, Inc.
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5 */
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8 #ifndef _NGX_ARRAY_H_INCLUDED_
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9 #define _NGX_ARRAY_H_INCLUDED_
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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16 typedef struct {
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17 void *elts;
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18 ngx_uint_t nelts;
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19 size_t size;
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20 ngx_uint_t nalloc;
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21 ngx_pool_t *pool;
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22 } ngx_array_t;
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25 ngx_array_t *ngx_array_create(ngx_pool_t *p, ngx_uint_t n, size_t size);
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26 void ngx_array_destroy(ngx_array_t *a);
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27 void *ngx_array_push(ngx_array_t *a);
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28 void *ngx_array_push_n(ngx_array_t *a, ngx_uint_t n);
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31 static ngx_inline ngx_int_t
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32 ngx_array_init(ngx_array_t *array, ngx_pool_t *pool, ngx_uint_t n, size_t size)
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33 {
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34 /*
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35 * set "array->nelts" before "array->elts", otherwise MSVC thinks
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36 * that "array->nelts" may be used without having been initialized
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37 */
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39 array->nelts = 0;
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40 array->size = size;
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41 array->nalloc = n;
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42 array->pool = pool;
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43
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44 array->elts = ngx_palloc(pool, n * size);
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45 if (array->elts == NULL) {
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46 return NGX_ERROR;
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47 }
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49 return NGX_OK;
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50 }
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53 #endif /* _NGX_ARRAY_H_INCLUDED_ */