bgpd: add flowspec feature

This work is derived from a work done by China-Telecom.
That initial work can be found in [0].
As the gap between frr and quagga is important, a reworks has been
done in the meantime.
The initial work consists of bringing the following:
- Bringing the client side of flowspec.
- the enhancement of address-family ipv4/ipv6 flowspec
- partial data path handling at reception has been prepared
- the support for ipv4 flowspec or ipv6 flowspec in BGP open messages,
  and the internals of BGP has been done.
- the memory contexts necessary for flowspec has been provisioned

In addition to this work, the following has been done:
- the complement of adaptation for FS safi in bgp code
- the code checkstyle has been reworked so as to match frr checkstyle
- the processing of IPv6 FS NLRI is prevented
- the processing of FS NLRI is stopped ( temporary)

[0] https://github.com/chinatelecom-sdn-group/quagga_flowspec/

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
Signed-off-by: jaydom <chinatelecom-sdn-group@github.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/lib/zebra.h b/lib/zebra.h
index 3887602231..f4f104299d 100644
--- a/lib/zebra.h
+++ b/lib/zebra.h
@@ -462,7 +462,8 @@ typedef enum {
 	IANA_SAFI_LABELED_UNICAST = 4,
 	IANA_SAFI_ENCAP = 7,
 	IANA_SAFI_EVPN = 70,
-	IANA_SAFI_MPLS_VPN = 128
+	IANA_SAFI_MPLS_VPN = 128,
+	IANA_SAFI_FLOWSPEC = 133
 } iana_safi_t;
 
 /* Default Administrative Distance of each protocol. */
@@ -548,6 +549,8 @@ static inline safi_t safi_iana2int(iana_safi_t safi)
 		return SAFI_EVPN;
 	case IANA_SAFI_LABELED_UNICAST:
 		return SAFI_LABELED_UNICAST;
+	case IANA_SAFI_FLOWSPEC:
+		return SAFI_FLOWSPEC;
 	default:
 		return SAFI_MAX;
 	}
@@ -568,6 +571,8 @@ static inline iana_safi_t safi_int2iana(safi_t safi)
 		return IANA_SAFI_EVPN;
 	case SAFI_LABELED_UNICAST:
 		return IANA_SAFI_LABELED_UNICAST;
+	case SAFI_FLOWSPEC:
+		return IANA_SAFI_FLOWSPEC;
 	default:
 		return IANA_SAFI_RESERVED;
 	}