Custom nhrp patches

0010-nhrpd-zebra-Read-GRE-addresses-only-if-sent.patch

@@ -0,0 +1,49 @@
+From 114bd532ac0c3b6d819f516eb41021eb250b65bd Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Zoran=20Peri=C4=8Di=C4=87?= <zpericic@netst.org>
+Date: Wed, 15 Sep 2021 19:44:56 +0200
+Subject: [PATCH 10/11] nhrpd, zebra: Read GRE addresses only if sent
+
+GRE addresses are not send if interface is missing in kernel. We
+should first check if they have been sent.
+---
+ nhrpd/nhrp_route.c | 7 ++++---
+ zebra/zapi_msg.c   | 2 --
+ 2 files changed, 4 insertions(+), 5 deletions(-)
+
+diff --git a/nhrpd/nhrp_route.c b/nhrpd/nhrp_route.c
+index 698c6d0cdf..2e7923bf33 100644
+--- a/nhrpd/nhrp_route.c
++++ b/nhrpd/nhrp_route.c
+@@ -493,12 +493,13 @@ int nhrp_gre_update(ZAPI_CALLBACK_ARGS)
+ 	STREAM_GETL(s, gre_info.okey);
+ 	STREAM_GETL(s, gre_info.ifindex_link);
+ 	STREAM_GETL(s, gre_info.vrfid_link);
+-	STREAM_GETL(s, gre_info.vtep_ip.s_addr);
+-	STREAM_GETL(s, gre_info.vtep_ip_remote.s_addr);
+ 	if (gre_info.ifindex == IFINDEX_INTERNAL)
+ 		val = NULL;
+-	else
++	else {
+ 		val = hash_lookup(nhrp_gre_list, &gre_info);
++		STREAM_GETL(s, gre_info.vtep_ip.s_addr);
++		STREAM_GETL(s, gre_info.vtep_ip_remote.s_addr);
++	}
+ 	if (val) {
+ 		if (gre_info.vtep_ip.s_addr != val->vtep_ip.s_addr ||
+ 		    gre_info.vrfid_link != val->vrfid_link ||
+diff --git a/zebra/zapi_msg.c b/zebra/zapi_msg.c
+index 68bb9783f8..72d06d71ea 100644
+--- a/zebra/zapi_msg.c
++++ b/zebra/zapi_msg.c
+@@ -3618,8 +3618,6 @@ static inline void zebra_gre_get(ZAPI_HANDLER_ARGS)
+ 		stream_putl(s, 0);
+ 		stream_putl(s, IFINDEX_INTERNAL);
+ 		stream_putl(s, VRF_UNKNOWN);
+-		stream_putl(s, 0);
+-		stream_putl(s, 0);
+ 	}
+ 	/* Write packet size. */
+ 	stream_putw_at(s, 0, stream_get_endp(s));
+-- 
+2.41.0
+

0011-nhrp-Peer-should-not-be-connected-if-interface-is-ac.patch

@@ -0,0 +1,92 @@
+From f9876d6106263632287fcef2912ba4223b145672 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Zoran=20Peri=C4=8Di=C4=87?= <zpericic@netst.org>
+Date: Mon, 20 Sep 2021 23:51:06 +0200
+Subject: [PATCH 11/11] nhrp: Peer should not be connected if interface is
+ active
+
+---
+ nhrpd/nhrp_interface.c |  1 +
+ nhrpd/nhrp_nhs.c       | 21 +++++++++++++++++++--
+ nhrpd/nhrp_peer.c      |  2 ++
+ nhrpd/nhrpd.h          |  1 +
+ 4 files changed, 23 insertions(+), 2 deletions(-)
+
+diff --git a/nhrpd/nhrp_interface.c b/nhrpd/nhrp_interface.c
+index 4ac30a7d75..6a8b6e6997 100644
+--- a/nhrpd/nhrp_interface.c
++++ b/nhrpd/nhrp_interface.c
+@@ -461,6 +461,7 @@ int nhrp_ifp_up(struct interface *ifp)
+ {
+ 	debugf(NHRP_DEBUG_IF, "if-up: %s", ifp->name);
+ 	nhrp_interface_update_nbma(ifp, NULL);
++	nhrp_nhs_interface_add(ifp);
+ 
+ 	return 0;
+ }
+diff --git a/nhrpd/nhrp_nhs.c b/nhrpd/nhrp_nhs.c
+index 03b4b533bb..bd05813d28 100644
+--- a/nhrpd/nhrp_nhs.c
++++ b/nhrpd/nhrp_nhs.c
+@@ -351,8 +351,9 @@ int nhrp_nhs_add(struct interface *ifp, afi_t afi, union sockunion *proto_addr,
+ 		.reglist_head = INIT_DLIST(nhs->reglist_head),
+ 	};
+ 	nhrp_nhslist_add_tail(&nifp->afi[afi].nhslist_head, nhs);
+-	thread_add_timer_msec(master, nhrp_nhs_resolve, nhs, 1000,
+-			      &nhs->t_resolve);
++	if (CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE))
++		thread_add_timer_msec(master, nhrp_nhs_resolve, nhs, 1000,
++				      &nhs->t_resolve);
+ 
+ 	return NHRP_OK;
+ }
+@@ -394,6 +395,22 @@ int nhrp_nhs_free(struct nhrp_interface *nifp, afi_t afi, struct nhrp_nhs *nhs)
+ 	return 0;
+ }
+ 
++void nhrp_nhs_interface_add(struct interface *ifp)
++{
++	struct nhrp_interface *nifp = ifp->info;
++	struct nhrp_nhs *nhs;
++	afi_t afi;
++
++	for (afi = 0; afi < AFI_MAX; afi++) {
++		debugf(NHRP_DEBUG_COMMON, "Adding nhs entries (%zu)",
++		       nhrp_nhslist_count(&nifp->afi[afi].nhslist_head));
++		frr_each (nhrp_nhslist, &nifp->afi[afi].nhslist_head, nhs) {
++			thread_add_timer_msec(master, nhrp_nhs_resolve, nhs, 1000,
++					      &nhs->t_resolve);
++		}
++	}
++}
++
+ void nhrp_nhs_interface_del(struct interface *ifp)
+ {
+ 	struct nhrp_interface *nifp = ifp->info;
+diff --git a/nhrpd/nhrp_peer.c b/nhrpd/nhrp_peer.c
+index e7f2eaf5a7..9e76d16db3 100644
+--- a/nhrpd/nhrp_peer.c
++++ b/nhrpd/nhrp_peer.c
+@@ -309,6 +309,8 @@ int nhrp_peer_check(struct nhrp_peer *p, int establish)
+ 	struct interface *ifp = p->ifp;
+ 	struct nhrp_interface *nifp = ifp->info;
+ 
++	if (!CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE))
++		return 0;
+ 	if (p->online)
+ 		return 1;
+ 	if (!establish)
+diff --git a/nhrpd/nhrpd.h b/nhrpd/nhrpd.h
+index 753c6e9b22..4850c12b49 100644
+--- a/nhrpd/nhrpd.h
++++ b/nhrpd/nhrpd.h
+@@ -400,6 +400,7 @@ void nhrp_nhs_foreach(struct interface *ifp, afi_t afi,
+ 		      void (*cb)(struct nhrp_nhs *, struct nhrp_registration *,
+ 				 void *),
+ 		      void *ctx);
++void nhrp_nhs_interface_add(struct interface *ifp);
+ void nhrp_nhs_interface_del(struct interface *ifp);
+ 
+ int nhrp_multicast_add(struct interface *ifp, afi_t afi,
+-- 
+2.41.0
+

frr.spec

@@ -1,4 +1,4 @@
-%global dist .ims.1%{?dist}
+%global dist .ims.2%{?dist}
 
 %global frr_libdir %{_libexecdir}/frr
 
@@ -28,7 +28,8 @@ Patch0002:      0002-enable-openssl.patch
 Patch0003:      0003-disable-eigrp-crypto.patch
 Patch0004:      0004-fips-mode.patch
 Patch0005:      0005-remove-grpc-test.patch
-
+Patch0010:      0010-nhrpd-zebra-Read-GRE-addresses-only-if-sent.patch
+Patch0011:      0011-nhrp-Peer-should-not-be-connected-if-interface-is-ac.patch
 BuildRequires:  autoconf
 BuildRequires:  automake
 BuildRequires:  bison >= 2.7