Mercurial > hg > nginx-quic
annotate src/event/ngx_event_udp.h @ 8640:c4f249d485e3 quic
QUIC: attempt decrypt before checking for stateless reset.
Checking the reset after encryption avoids false positives. More importantly,
it avoids the check entirely in the usual case where decryption succeeds.
RFC 9000, 10.3.1 Detecting a Stateless Reset
Endpoints MAY skip this check if any packet from a datagram is
successfully processed.
author | Martin Duke <m.duke@f5.com> |
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date | Tue, 12 Oct 2021 11:57:50 +0300 |
parents | e7a2d3914877 |
children | ce6d9cf0f567 |
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1 |
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2 /* |
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3 * Copyright (C) Nginx, Inc. |
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4 */ |
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5 |
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6 |
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7 #ifndef _NGX_EVENT_UDP_H_INCLUDED_ |
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8 #define _NGX_EVENT_UDP_H_INCLUDED_ |
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9 |
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10 |
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11 #include <ngx_config.h> |
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12 #include <ngx_core.h> |
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13 |
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14 |
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15 #if !(NGX_WIN32) |
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16 |
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17 #if ((NGX_HAVE_MSGHDR_MSG_CONTROL) \ |
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18 && (NGX_HAVE_IP_SENDSRCADDR || NGX_HAVE_IP_RECVDSTADDR \ |
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19 || NGX_HAVE_IP_PKTINFO \ |
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20 || (NGX_HAVE_INET6 && NGX_HAVE_IPV6_RECVPKTINFO))) |
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21 #define NGX_HAVE_ADDRINFO_CMSG 1 |
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22 #endif |
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23 |
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24 |
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25 typedef struct { |
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26 ngx_buf_t *buffer; |
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27 struct sockaddr *sockaddr; |
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28 socklen_t socklen; |
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29 } ngx_udp_dgram_t; |
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30 |
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31 |
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32 struct ngx_udp_connection_s { |
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33 ngx_rbtree_node_t node; |
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34 ngx_connection_t *connection; |
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35 ngx_str_t key; |
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36 ngx_udp_dgram_t *dgram; |
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37 }; |
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38 |
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39 |
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40 #if (NGX_HAVE_ADDRINFO_CMSG) |
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41 |
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42 typedef union { |
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43 #if (NGX_HAVE_IP_SENDSRCADDR || NGX_HAVE_IP_RECVDSTADDR) |
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44 struct in_addr addr; |
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45 #endif |
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46 |
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47 #if (NGX_HAVE_IP_PKTINFO) |
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48 struct in_pktinfo pkt; |
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49 #endif |
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50 |
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51 #if (NGX_HAVE_INET6 && NGX_HAVE_IPV6_RECVPKTINFO) |
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52 struct in6_pktinfo pkt6; |
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53 #endif |
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54 } ngx_addrinfo_t; |
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55 |
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56 size_t ngx_set_srcaddr_cmsg(struct cmsghdr *cmsg, |
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57 struct sockaddr *local_sockaddr); |
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58 ngx_int_t ngx_get_srcaddr_cmsg(struct cmsghdr *cmsg, |
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59 struct sockaddr *local_sockaddr); |
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60 |
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61 #endif |
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62 |
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63 |
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64 void ngx_event_recvmsg(ngx_event_t *ev); |
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65 ssize_t ngx_sendmsg(ngx_connection_t *c, struct msghdr *msg, int flags); |
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66 void ngx_udp_rbtree_insert_value(ngx_rbtree_node_t *temp, |
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67 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel); |
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68 void ngx_insert_udp_connection(ngx_connection_t *c, ngx_udp_connection_t *udp, |
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69 ngx_str_t *key); |
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70 |
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71 #endif |
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72 |
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73 void ngx_delete_udp_connection(void *data); |
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74 |
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75 |
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76 #endif /* _NGX_EVENT_UDP_H_INCLUDED_ */ |