2 Commits

Author	SHA1	Message	Date
Willy Tarreau	4576424174	CONTRIB: hpack: add an hpack decoder ... This decoder takes a series of hex codes on stdin using one line per HEADERS frame and shows the decoded headers.	2017-12-30 17:43:28 +01:00
Willy Tarreau	8071eae6b9	CONTRIB: hpack: implement a reverse huffman table generator for hpack ... This one was built by studying the HPACK Huffman table (RFC7541 appendix B). It creates 5 small tables (4*512 bytes, 1*64 bytes) to map one byte at a time from the input stream based on the following observations : * rht_bit31_24[256] is indexed on bits 31..24 when < 0xfe * rht_bit24_17[256] is indexed on bits 24..17 when 31..24 >= 0xfe * rht_bit15_11_fe[32] is indexed on bits 15..11 when 24..17 == 0xfe * rht_bit15_8[256] is indexed on bits 15..8 when 24..17 == 0xff * rht_bit11_4[256] is indexed on bits 11..4 when 15..8 == 0xff * when 11..4 == 0xff, 3..2 provide the following mapping : * 00 => 0x0a, 01 => 0x0d, 10 => 0x16, 11 => EOS	2017-10-31 18:03:24 +01:00