Mercurial > hg > nginx-quic
annotate src/core/ngx_list.c @ 6980:dbb0c854e308
Set UDP datagram source address (ticket #1239).
Previously, the source IP address of a response UDP datagram could differ from
the original datagram destination address. This could happen if the server UDP
socket is bound to a wildcard address and the network interface chosen to output
the response packet has a different default address than the destination address
of the original packet. For example, if two addresses from the same network are
configured on an interface.
Now source address is set explicitly if a response is sent for a server UDP
socket bound to a wildcard address.
author | Roman Arutyunyan <arut@nginx.com> |
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date | Tue, 11 Apr 2017 16:41:53 +0300 |
parents | a82f305487c2 |
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rev | line source |
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441
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1 |
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2 /* |
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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 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 |
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11 |
766 | 12 ngx_list_t * |
13 ngx_list_create(ngx_pool_t *pool, ngx_uint_t n, size_t size) | |
14 { | |
15 ngx_list_t *list; | |
16 | |
17 list = ngx_palloc(pool, sizeof(ngx_list_t)); | |
18 if (list == NULL) { | |
19 return NULL; | |
20 } | |
21 | |
5253
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22 if (ngx_list_init(list, pool, n, size) != NGX_OK) { |
766 | 23 return NULL; |
24 } | |
25 | |
26 return list; | |
27 } | |
28 | |
29 | |
30 void * | |
31 ngx_list_push(ngx_list_t *l) | |
414
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32 { |
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33 void *elt; |
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34 ngx_list_part_t *last; |
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35 |
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36 last = l->last; |
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37 |
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38 if (last->nelts == l->nalloc) { |
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39 |
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40 /* the last part is full, allocate a new list part */ |
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41 |
501 | 42 last = ngx_palloc(l->pool, sizeof(ngx_list_part_t)); |
43 if (last == NULL) { | |
414
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44 return NULL; |
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45 } |
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46 |
501 | 47 last->elts = ngx_palloc(l->pool, l->nalloc * l->size); |
48 if (last->elts == NULL) { | |
414
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49 return NULL; |
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50 } |
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51 |
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52 last->nelts = 0; |
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53 last->next = NULL; |
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54 |
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55 l->last->next = last; |
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56 l->last = last; |
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57 } |
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58 |
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59 elt = (char *) last->elts + l->size * last->nelts; |
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60 last->nelts++; |
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61 |
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62 return elt; |
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63 } |