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bgpd: ignore 4 bits of attribute flags byte

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This commit is contained in:
Denis Ovsienko 2011-09-27 15:35:39 +04:00
parent 214bcaa13e
commit 2d42e68aa0
1 changed files with 4 additions and 1 deletions
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5
bgpd/bgp_attr.c
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@ -1788,7 +1788,10 @@ bgp_attr_parse (struct peer *peer, struct attr *attr, bgp_size_t size,
/* Fetch attribute flag and type. */
startp = BGP_INPUT_PNT (peer);
flag = stream_getc (BGP_INPUT (peer));
/* "The lower-order four bits of the Attribute Flags octet are
unused. They MUST be zero when sent and MUST be ignored when
received." */
flag = 0xF0 & stream_getc (BGP_INPUT (peer));
type = stream_getc (BGP_INPUT (peer));
/* Check whether Extended-Length applies and is in bounds */