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Strictly check occurrence of dynamic table size update

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RFC 7541 requires that dynamic table size update must occur at the
beginning of the first header block, and is signaled as SETTINGS
acknowledgement.  This commit checks these conditions.  If dynamic
table size update appears other than the beginning of the first header
block, it is treated as error.  If SETTINGS ACK is received, and next
HEADERS header block does not have dynamic table size update, it is
treated as error.
This commit is contained in:
Tatsuhiro Tsujikawa
2015-07-22 00:11:23 +09:00
parent 18234b8741
commit f3288092e8
6 changed files with 95 additions and 2 deletions
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2
lib/nghttp2_hd.h
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@@ -151,6 +151,8 @@ typedef enum {
} nghttp2_hd_opcode;
typedef enum {
NGHTTP2_HD_STATE_EXPECT_TABLE_SIZE,
NGHTTP2_HD_STATE_INFLATE_START,
NGHTTP2_HD_STATE_OPCODE,
NGHTTP2_HD_STATE_READ_TABLE_SIZE,
NGHTTP2_HD_STATE_READ_INDEX,