[FFmpeg-devel] [PATCH v3 8/9] avformat/tls_openssl: auto set the dest addr when dtls in listen mode

[Jack Lau <jacklau1222gm@gmail.com>]

Signed-off-by: Jack Lau <jacklau1222@qq.com>
---
 libavformat/tls_openssl.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/libavformat/tls_openssl.c b/libavformat/tls_openssl.c
index 1c4d114205..344b152902 100644
--- a/libavformat/tls_openssl.c
+++ b/libavformat/tls_openssl.c
@@ -465,6 +465,8 @@ typedef struct TLSContext {
     BIO_METHOD* url_bio_method;
     int io_err;
     char error_message[256];
+    struct sockaddr_storage dest_addr;
+    socklen_t dest_addr_len;
 } TLSContext;
 
 /**
@@ -582,8 +584,19 @@ static int url_bio_destroy(BIO *b)
 static int url_bio_bread(BIO *b, char *buf, int len)
 {
     TLSContext *c = BIO_get_data(b);
+    TLSShared *s = &c->tls_shared;
     int ret = ffurl_read(c->tls_shared.is_dtls ? c->tls_shared.udp : c->tls_shared.tcp, buf, len);
     if (ret >= 0) {
+        if (!s->external_sock && s->is_dtls && s->listen && !c->dest_addr_len && !c->dest_addr.ss_family) {
+            int r1;
+            ff_udp_get_last_recv_addr(s->udp, &c->dest_addr, &c->dest_addr_len);
+            r1 = ff_udp_set_remote_addr(s->udp, (struct sockaddr*)&c->dest_addr, c->dest_addr_len, 1);
+            if (r1 < 0) {
+                av_log(c, AV_LOG_ERROR, "Failed to set remote addr\n");
+                return r1;
+            }
+            av_log(c, AV_LOG_DEBUG, "Set UDP remote addr successfully\n");
+        }
         openssl_state_trace((uint8_t*)buf, ret, 1);
         return ret;
     }
-- 
2.49.0

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