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diff src/event/quic/ngx_event_quic_migration.h @ 8763:4117aa7fa38e quic

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QUIC: connection migration. The patch adds proper transitions between multiple networking addresses that can be used by a single quic connection. New networking paths are validated using PATH_CHALLENGE/PATH_RESPONSE frames.
author Vladimir Homutov <vl@nginx.com>
date Thu, 29 Apr 2021 15:35:02 +0300
parents c8bda5e1e662
children 5186ee5a94b9
line wrap: on
line diff
--- a/src/event/quic/ngx_event_quic_migration.h
+++ b/src/event/quic/ngx_event_quic_migration.h
@@ -11,10 +11,34 @@
 #include <ngx_config.h>
 #include <ngx_core.h>
 
+#define NGX_QUIC_PATH_RETRIES          3
+
+#define NGX_QUIC_PATH_NEW              0
+#define NGX_QUIC_PATH_VALIDATING       1
+#define NGX_QUIC_PATH_VALIDATED        2
+
+#define NGX_QUIC_PATH_VALID_TIME       600 /* seconds */
+
+
+#define ngx_quic_path_state_str(p)                                            \
+    ((p)->state == NGX_QUIC_PATH_NEW) ? "new" :                               \
+        (((p)->state == NGX_QUIC_PATH_VALIDATED) ? "validated" : "validating")
+
 
 ngx_int_t ngx_quic_handle_path_challenge_frame(ngx_connection_t *c,
     ngx_quic_header_t *pkt, ngx_quic_path_challenge_frame_t *f);
 ngx_int_t ngx_quic_handle_path_response_frame(ngx_connection_t *c,
     ngx_quic_header_t *pkt, ngx_quic_path_challenge_frame_t *f);
 
+ngx_quic_path_t *ngx_quic_add_path(ngx_connection_t *c,
+    struct sockaddr *sockaddr, socklen_t socklen);
+
+ngx_int_t ngx_quic_check_migration(ngx_connection_t *c,
+    ngx_quic_header_t *pkt);
+ngx_int_t ngx_quic_update_paths(ngx_connection_t *c, ngx_quic_header_t *pkt);
+ngx_int_t ngx_quic_handle_migration(ngx_connection_t *c,
+    ngx_quic_header_t *pkt);
+
+void ngx_quic_path_validation_handler(ngx_event_t *ev);
+
 #endif /* _NGX_EVENT_QUIC_MIGRATION_H_INCLUDED_ */