Mercurial > hg > nginx
annotate src/core/ngx_list.h @ 9101:3bb003fcd682 quic
QUIC: keep stream sockaddr and addr_text constant.
HTTP and Stream variables $remote_addr and $binary_remote_addr rely on
constant client address, particularly because they are cacheable.
However, QUIC client may migrate to a new address. While there's no perfect
way to handle this, the proposed solution is to copy client address to QUIC
stream at stream creation.
The change also fixes truncated $remote_addr if migration happened while the
stream was active. The reason is addr_text string was copied to stream by
value.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Thu, 11 May 2023 19:40:11 +0400 |
parents | d620f497c50f |
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rev | line source |
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441
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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6 |
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7 |
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8 #ifndef _NGX_LIST_H_INCLUDED_ |
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9 #define _NGX_LIST_H_INCLUDED_ |
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10 |
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11 |
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12 #include <ngx_config.h> |
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13 #include <ngx_core.h> |
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14 |
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15 |
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16 typedef struct ngx_list_part_s ngx_list_part_t; |
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17 |
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18 struct ngx_list_part_s { |
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19 void *elts; |
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20 ngx_uint_t nelts; |
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21 ngx_list_part_t *next; |
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22 }; |
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23 |
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24 |
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25 typedef struct { |
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26 ngx_list_part_t *last; |
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27 ngx_list_part_t part; |
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28 size_t size; |
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29 ngx_uint_t nalloc; |
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30 ngx_pool_t *pool; |
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31 } ngx_list_t; |
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32 |
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33 |
766 | 34 ngx_list_t *ngx_list_create(ngx_pool_t *pool, ngx_uint_t n, size_t size); |
35 | |
36 static ngx_inline ngx_int_t | |
37 ngx_list_init(ngx_list_t *list, ngx_pool_t *pool, ngx_uint_t n, size_t size) | |
415
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38 { |
501 | 39 list->part.elts = ngx_palloc(pool, n * size); |
40 if (list->part.elts == NULL) { | |
415
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41 return NGX_ERROR; |
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42 } |
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43 |
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44 list->part.nelts = 0; |
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45 list->part.next = NULL; |
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46 list->last = &list->part; |
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47 list->size = size; |
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48 list->nalloc = n; |
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49 list->pool = pool; |
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50 |
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51 return NGX_OK; |
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52 } |
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53 |
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54 |
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55 /* |
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56 * |
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57 * the iteration through the list: |
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58 * |
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59 * part = &list.part; |
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60 * data = part->elts; |
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61 * |
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62 * for (i = 0 ;; i++) { |
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63 * |
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64 * if (i >= part->nelts) { |
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65 * if (part->next == NULL) { |
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66 * break; |
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67 * } |
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68 * |
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69 * part = part->next; |
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70 * data = part->elts; |
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71 * i = 0; |
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72 * } |
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73 * |
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74 * ... data[i] ... |
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75 * |
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76 * } |
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77 */ |
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78 |
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79 |
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80 void *ngx_list_push(ngx_list_t *list); |
414
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81 |
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82 |
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83 #endif /* _NGX_LIST_H_INCLUDED_ */ |