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28 lines
951 B
28 lines
951 B
2 years ago
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commit 9e885a707d604e9528b5491b78fb9c00f41193fc
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Author: Tomas Mraz <tmraz@fedoraproject.org>
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Date: Thu Mar 26 15:59:00 2020 +0100
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s_server: Properly indicate ALPN protocol mismatch
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Return SSL_TLSEXT_ERR_ALERT_FATAL from alpn_select_cb so that
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an alert is sent to the client on ALPN protocol mismatch.
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Fixes: #2708
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Reviewed-by: Matt Caswell <matt@openssl.org>
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(Merged from https://github.com/openssl/openssl/pull/11415)
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diff --git a/apps/s_server.c b/apps/s_server.c
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index bcc83e562c..591c6c19c5 100644
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--- a/apps/s_server.c
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+++ b/apps/s_server.c
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@@ -707,7 +707,7 @@ static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen,
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if (SSL_select_next_proto
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((unsigned char **)out, outlen, alpn_ctx->data, alpn_ctx->len, in,
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inlen) != OPENSSL_NPN_NEGOTIATED) {
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- return SSL_TLSEXT_ERR_NOACK;
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+ return SSL_TLSEXT_ERR_ALERT_FATAL;
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}
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if (!s_quiet) {
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