bus-proxy: fix error code for invalid reply-slots
The kernel may return EBADSLT if a reply slot cannot be found. Make sure to ignore it just like we ignore EPERM (the comment still applies).
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@ -770,19 +770,19 @@ static int proxy_process_destination_to_local(Proxy *p) {
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return r;
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/* If the peer tries to send a reply and it is
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* rejected with EPERM by the kernel, we ignore the
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* rejected with EBADSLT by the kernel, we ignore the
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* error. This catches cases where the original
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* method-call didn't had EXPECT_REPLY set, but the
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* proxy-peer still sends a reply. This is allowed in
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* dbus1, but not in kdbus. We don't want to track
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* reply-windows in the proxy, so we simply ignore
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* EPERM for all replies. The only downside is, that
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* EBADSLT for all replies. The only downside is, that
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* callers are no longer notified if their replies are
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* dropped. However, this is equivalent to the
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* caller's timeout to expire, so this should be
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* acceptable. Nobody sane sends replies without a
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* matching method-call, so nobody should care. */
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if (r == -EPERM && m->reply_cookie > 0)
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if ((r == -EPERM || r == -EBADSLT) && m->reply_cookie > 0)
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return 1;
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/* Return the error to the client, if we can */
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@ -863,8 +863,8 @@ static int proxy_process_local_to_destination(Proxy *p) {
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if (r == -EREMCHG)
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continue;
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/* see above why EPERM is ignored for replies */
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if (r == -EPERM && m->reply_cookie > 0)
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/* see above why EBADSLT is ignored for replies */
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if ((r == -EPERM || r == -EBADSLT) && m->reply_cookie > 0)
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return 1;
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synthetic_reply_method_errnof(m, r, "Failed to forward message we got from local: %m");
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