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bgpd: forge bgp flowspec packets to be sent

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bgp flowspec packets are being forged correctly. There is no need to
check for bgp length, as the bgp nlri length is checked at reception.

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
This commit is contained in:
Philippe Guibert 2020-01-21 13:17:45 +01:00
parent 211ee7aa63
commit f1af8f04e7
1 changed files with 3 additions and 7 deletions
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10
bgpd/bgp_attr.c
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@ -3097,13 +3097,9 @@ void bgp_packet_mpattr_prefix(struct stream *s, afi_t afi, safi_t safi,
stream_put_labeled_prefix(s, p, label, addpath_encode,
addpath_tx_id);
} else if (safi == SAFI_FLOWSPEC) {
if (PSIZE (p->prefixlen)+2 < FLOWSPEC_NLRI_SIZELIMIT)
stream_putc(s, PSIZE (p->prefixlen)+2);
else
stream_putw(s, (PSIZE (p->prefixlen)+2)|(0xf<<12));
stream_putc(s, 2);/* Filter type */
stream_putc(s, p->prefixlen);/* Prefix length */
stream_put(s, &p->u.prefix, PSIZE (p->prefixlen));
stream_putc(s, p->u.prefix_flowspec.prefixlen);
stream_put(s, (const void *)p->u.prefix_flowspec.ptr,
p->u.prefix_flowspec.prefixlen);
} else
stream_put_prefix_addpath(s, p, addpath_encode, addpath_tx_id);
}