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MINOR: h2: add a function to report H2 error codes as strings

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Just like we have frame type to string, let's have error to string to
improve debugging and traces.
This commit is contained in:
Willy Tarreau 2019-11-24 14:56:03 +01:00
parent 57a1816fae
commit c22d5dfeb8
1 changed files with 22 additions and 0 deletions
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22
include/common/h2.h
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@ -233,6 +233,28 @@ static inline const char *h2_ft_str(int type)
}
}
/* returns the error code as a string */
static inline const char *h2_err_str(enum h2_err err)
{
switch (err) {
case H2_ERR_NO_ERROR : return "NO_ERROR";
case H2_ERR_PROTOCOL_ERROR : return "PROTOCOL_ERROR";
case H2_ERR_INTERNAL_ERROR : return "INTERNAL_ERROR";
case H2_ERR_FLOW_CONTROL_ERROR : return "FLOW_CONTROL_ERROR";
case H2_ERR_SETTINGS_TIMEOUT : return "SETTINGS_TIMEOUT";
case H2_ERR_STREAM_CLOSED : return "STREAM_CLOSED";
case H2_ERR_FRAME_SIZE_ERROR : return "FRAME_SIZE_ERROR";
case H2_ERR_REFUSED_STREAM : return "REFUSED_STREAM";
case H2_ERR_CANCEL : return "CANCEL";
case H2_ERR_COMPRESSION_ERROR : return "COMPRESSION_ERROR";
case H2_ERR_CONNECT_ERROR : return "CONNECT_ERROR";
case H2_ERR_ENHANCE_YOUR_CALM : return "ENHANCE_YOUR_CALM";
case H2_ERR_INADEQUATE_SECURITY : return "INADEQUATE_SECURITY";
case H2_ERR_HTTP_1_1_REQUIRED : return "HTTP_1_1_REQUIRED";
default : return "_UNKNOWN_";
}
}
/* Returns an error code if the frame is valid protocol-wise, otherwise 0. <ft>
* is the frame type (H2_FT_*), <dir> is the direction (1=req, 2=res), <id> is
* the stream ID from the frame header, <len> is the frame length from the