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BUG/MINOR: h3: ignore unknown frame types

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When receiving an unknown h3 frame type, the frame must be discarded
silently and the processing of the remaing frames must continue. This is
according to the HTTP/3 draft34.

This issue was detected when using the quiche client which uses GREASE
frame to test interoperability.
This commit is contained in:
Amaury Denoyelle 2021-11-15 15:52:55 +01:00
parent 946ebbb0bd
commit d1acaf9828
1 changed files with 4 additions and 3 deletions
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7
src/h3.c
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@ -212,9 +212,10 @@ static int h3_decode_qcs(struct qcs *qcs, void *ctx)
/* Not supported */
break;
default:
/* Error */
h3->err = H3_FRAME_UNEXPECTED;
return -1;
/* draft-ietf-quic-http34 9. Extensions to HTTP/3
* unknown frame types MUST be ignored
*/
h3_debug_printf(stderr, "ignore unknown frame type 0x%lx\n", ftype);
}
b_del(rxbuf, flen);
}