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No commits in common. 'i10c-beta' and 'c9' have entirely different histories.
@ -1 +1 @@
|
||||
ae93955533d9370c136d45a3adf808d7b50284a0 SOURCES/frr-10.1.tar.gz
|
||||
467835eb73a6018948fd667663ce68282cf6d16b SOURCES/frr-8.3.1.tar.gz
|
||||
|
||||
@ -1 +1 @@
|
||||
SOURCES/frr-10.1.tar.gz
|
||||
SOURCES/frr-8.3.1.tar.gz
|
||||
|
||||
@ -0,0 +1,25 @@
|
||||
diff --git a/ospfd/ospf_spf.c b/ospfd/ospf_spf.c
|
||||
index 74a5674..aec9037 100644
|
||||
--- a/ospfd/ospf_spf.c
|
||||
+++ b/ospfd/ospf_spf.c
|
||||
@@ -48,7 +48,10 @@
|
||||
#include "ospfd/ospf_sr.h"
|
||||
#include "ospfd/ospf_ti_lfa.h"
|
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#include "ospfd/ospf_errors.h"
|
||||
+
|
||||
+#ifdef SUPPORT_OSPF_API
|
||||
#include "ospfd/ospf_apiserver.h"
|
||||
+#endif
|
||||
|
||||
/* Variables to ensure a SPF scheduled log message is printed only once */
|
||||
|
||||
@@ -1897,7 +1900,9 @@ static void ospf_spf_calculate_schedule_worker(struct thread *thread)
|
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/* Update all routers routing table */
|
||||
ospf->oall_rtrs = ospf->all_rtrs;
|
||||
ospf->all_rtrs = all_rtrs;
|
||||
+#ifdef SUPPORT_OSPF_API
|
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ospf_apiserver_notify_reachable(ospf->oall_rtrs, ospf->all_rtrs);
|
||||
+#endif
|
||||
|
||||
/* Free old ABR/ASBR routing table */
|
||||
if (ospf->old_rtrs)
|
||||
@ -1,27 +0,0 @@
|
||||
diff --git a/tests/lib/subdir.am b/tests/lib/subdir.am
|
||||
index 7b5eaa4..5c82f69 100644
|
||||
--- a/tests/lib/subdir.am
|
||||
+++ b/tests/lib/subdir.am
|
||||
@@ -18,22 +18,6 @@ tests_lib_test_frrscript_SOURCES = tests/lib/test_frrscript.c
|
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test -e tests/lib/script1.lua || \
|
||||
$(INSTALL_SCRIPT) $< tests/lib/script1.lua
|
||||
|
||||
-##############################################################################
|
||||
-GRPC_TESTS_LDADD = mgmtd/libmgmt_be_nb.la staticd/libstatic.a grpc/libfrrgrpc_pb.la $(GRPC_LIBS) $(ALL_TESTS_LDADD) $(LIBYANG_LIBS) -lm
|
||||
-
|
||||
-if GRPC
|
||||
-check_PROGRAMS += tests/lib/test_grpc
|
||||
-endif
|
||||
-tests_lib_test_grpc_CXXFLAGS = $(WERROR) $(TESTS_CXXFLAGS)
|
||||
-tests_lib_test_grpc_CPPFLAGS = $(TESTS_CPPFLAGS)
|
||||
-tests_lib_test_grpc_LDADD = $(GRPC_TESTS_LDADD)
|
||||
-tests_lib_test_grpc_SOURCES = tests/lib/test_grpc.cpp
|
||||
-nodist_tests_lib_test_grpc_SOURCES = \
|
||||
- yang/frr-bfdd.yang.c \
|
||||
- yang/frr-staticd.yang.c \
|
||||
- # end
|
||||
-
|
||||
-
|
||||
##############################################################################
|
||||
if ZEROMQ
|
||||
check_PROGRAMS += tests/lib/test_zmq
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||||
@ -0,0 +1,78 @@
|
||||
From 12f9f8472d0f8cfc026352906b8e5342df2846cc Mon Sep 17 00:00:00 2001
|
||||
From: Donatas Abraitis <donatas@opensourcerouting.org>
|
||||
Date: Tue, 27 Sep 2022 17:30:16 +0300
|
||||
Subject: [PATCH] bgpd: Do not send Deconfig/Shutdown message when restarting
|
||||
|
||||
We might disable sending unconfig/shutdown notifications when
|
||||
Graceful-Restart is enabled and negotiated.
|
||||
|
||||
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
|
||||
---
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||||
bgpd/bgpd.c | 35 ++++++++++++++++++++++++++---------
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||||
1 file changed, 26 insertions(+), 9 deletions(-)
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||||
|
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diff --git a/bgpd/bgpd.c b/bgpd/bgpd.c
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||||
index 749e46ebe9d..ae1308db423 100644
|
||||
--- a/bgpd/bgpd.c
|
||||
+++ b/bgpd/bgpd.c
|
||||
@@ -2755,11 +2755,34 @@ int peer_group_remote_as(struct bgp *bgp, const char *group_name, as_t *as,
|
||||
|
||||
void peer_notify_unconfig(struct peer *peer)
|
||||
{
|
||||
+ if (BGP_PEER_GRACEFUL_RESTART_CAPABLE(peer)) {
|
||||
+ if (bgp_debug_neighbor_events(peer))
|
||||
+ zlog_debug(
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||||
+ "%pBP configured Graceful-Restart, skipping unconfig notification",
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||||
+ peer);
|
||||
+ return;
|
||||
+ }
|
||||
+
|
||||
if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status))
|
||||
bgp_notify_send(peer, BGP_NOTIFY_CEASE,
|
||||
BGP_NOTIFY_CEASE_PEER_UNCONFIG);
|
||||
}
|
||||
|
||||
+static void peer_notify_shutdown(struct peer *peer)
|
||||
+{
|
||||
+ if (BGP_PEER_GRACEFUL_RESTART_CAPABLE(peer)) {
|
||||
+ if (bgp_debug_neighbor_events(peer))
|
||||
+ zlog_debug(
|
||||
+ "%pBP configured Graceful-Restart, skipping shutdown notification",
|
||||
+ peer);
|
||||
+ return;
|
||||
+ }
|
||||
+
|
||||
+ if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status))
|
||||
+ bgp_notify_send(peer, BGP_NOTIFY_CEASE,
|
||||
+ BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN);
|
||||
+}
|
||||
+
|
||||
void peer_group_notify_unconfig(struct peer_group *group)
|
||||
{
|
||||
struct peer *peer, *other;
|
||||
@@ -3676,11 +3699,8 @@ int bgp_delete(struct bgp *bgp)
|
||||
}
|
||||
|
||||
/* Inform peers we're going down. */
|
||||
- for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer)) {
|
||||
- if (BGP_IS_VALID_STATE_FOR_NOTIF(peer->status))
|
||||
- bgp_notify_send(peer, BGP_NOTIFY_CEASE,
|
||||
- BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN);
|
||||
- }
|
||||
+ for (ALL_LIST_ELEMENTS(bgp->peer, node, next, peer))
|
||||
+ peer_notify_shutdown(peer);
|
||||
|
||||
/* Delete static routes (networks). */
|
||||
bgp_static_delete(bgp);
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@@ -8252,10 +8272,7 @@ void bgp_terminate(void)
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||||
|
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for (ALL_LIST_ELEMENTS(bm->bgp, mnode, mnnode, bgp))
|
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for (ALL_LIST_ELEMENTS(bgp->peer, node, nnode, peer))
|
||||
- if (peer_established(peer) || peer->status == OpenSent
|
||||
- || peer->status == OpenConfirm)
|
||||
- bgp_notify_send(peer, BGP_NOTIFY_CEASE,
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||||
- BGP_NOTIFY_CEASE_PEER_UNCONFIG);
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||||
+ peer_notify_unconfig(peer);
|
||||
|
||||
BGP_TIMER_OFF(bm->t_rmap_update);
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||||
|
||||
@ -1,167 +0,0 @@
|
||||
--- b/tests/topotests/zebra_multiple_connected/test_zebra_multiple_connected.py
|
||||
+++ a/tests/topotests/zebra_multiple_connected/test_zebra_multiple_connected.py
|
||||
@@ -144,23 +144,6 @@
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||||
assert result is None, "Kernel route is missing from zebra"
|
||||
|
||||
|
||||
-def test_zebra_noprefix_connected():
|
||||
- "Test that a noprefixroute created does not create a connected route"
|
||||
-
|
||||
- tgen = get_topogen()
|
||||
- if tgen.routers_have_failure():
|
||||
- pytest.skip(tgen.errors)
|
||||
-
|
||||
- router = tgen.gears["r1"]
|
||||
- router.run("ip addr add 192.168.44.1/24 dev r1-eth1 noprefixroute")
|
||||
- expected = "% Network not in table"
|
||||
- test_func = partial(
|
||||
- topotest.router_output_cmp, router, "show ip route 192.168.44.0/24", expected
|
||||
- )
|
||||
- result, diff = topotest.run_and_expect(test_func, "", count=20, wait=1)
|
||||
- assert result, "Connected Route should not have been added"
|
||||
-
|
||||
-
|
||||
if __name__ == "__main__":
|
||||
args = ["-s"] + sys.argv[1:]
|
||||
sys.exit(pytest.main(args))
|
||||
--- b/zebra/if_netlink.c
|
||||
+++ a/zebra/if_netlink.c
|
||||
@@ -1423,9 +1423,6 @@
|
||||
if (kernel_flags & IFA_F_SECONDARY)
|
||||
dplane_ctx_intf_set_secondary(ctx);
|
||||
|
||||
- if (kernel_flags & IFA_F_NOPREFIXROUTE)
|
||||
- dplane_ctx_intf_set_noprefixroute(ctx);
|
||||
-
|
||||
/* Label */
|
||||
if (tb[IFA_LABEL]) {
|
||||
label = (char *)RTA_DATA(tb[IFA_LABEL]);
|
||||
--- b/zebra/zebra_dplane.c
|
||||
+++ a/zebra/zebra_dplane.c
|
||||
@@ -230,7 +230,6 @@
|
||||
#define DPLANE_INTF_BROADCAST (1 << 2)
|
||||
#define DPLANE_INTF_HAS_DEST DPLANE_INTF_CONNECTED
|
||||
#define DPLANE_INTF_HAS_LABEL (1 << 4)
|
||||
-#define DPLANE_INTF_NOPREFIXROUTE (1 << 5)
|
||||
|
||||
/* Interface address/prefix */
|
||||
struct prefix prefix;
|
||||
@@ -2542,13 +2541,6 @@
|
||||
return (ctx->u.intf.flags & DPLANE_INTF_CONNECTED);
|
||||
}
|
||||
|
||||
-bool dplane_ctx_intf_is_noprefixroute(const struct zebra_dplane_ctx *ctx)
|
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-{
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- DPLANE_CTX_VALID(ctx);
|
||||
-
|
||||
- return (ctx->u.intf.flags & DPLANE_INTF_NOPREFIXROUTE);
|
||||
-}
|
||||
-
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||||
bool dplane_ctx_intf_is_secondary(const struct zebra_dplane_ctx *ctx)
|
||||
{
|
||||
DPLANE_CTX_VALID(ctx);
|
||||
@@ -2577,13 +2569,6 @@
|
||||
ctx->u.intf.flags |= DPLANE_INTF_SECONDARY;
|
||||
}
|
||||
|
||||
-void dplane_ctx_intf_set_noprefixroute(struct zebra_dplane_ctx *ctx)
|
||||
-{
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||||
- DPLANE_CTX_VALID(ctx);
|
||||
-
|
||||
- ctx->u.intf.flags |= DPLANE_INTF_NOPREFIXROUTE;
|
||||
-}
|
||||
-
|
||||
void dplane_ctx_intf_set_broadcast(struct zebra_dplane_ctx *ctx)
|
||||
{
|
||||
DPLANE_CTX_VALID(ctx);
|
||||
--- b/zebra/zebra_dplane.h
|
||||
+++ a/zebra/zebra_dplane.h
|
||||
@@ -658,8 +658,6 @@
|
||||
void dplane_ctx_intf_set_connected(struct zebra_dplane_ctx *ctx);
|
||||
bool dplane_ctx_intf_is_secondary(const struct zebra_dplane_ctx *ctx);
|
||||
void dplane_ctx_intf_set_secondary(struct zebra_dplane_ctx *ctx);
|
||||
-bool dplane_ctx_intf_is_noprefixroute(const struct zebra_dplane_ctx *ctx);
|
||||
-void dplane_ctx_intf_set_noprefixroute(struct zebra_dplane_ctx *ctx);
|
||||
bool dplane_ctx_intf_is_broadcast(const struct zebra_dplane_ctx *ctx);
|
||||
void dplane_ctx_intf_set_broadcast(struct zebra_dplane_ctx *ctx);
|
||||
const struct prefix *dplane_ctx_get_intf_addr(
|
||||
--- b/lib/if.h
|
||||
+++ a/lib/if.h
|
||||
@@ -434,8 +434,6 @@
|
||||
#define ZEBRA_IFA_SECONDARY (1 << 0)
|
||||
#define ZEBRA_IFA_PEER (1 << 1)
|
||||
#define ZEBRA_IFA_UNNUMBERED (1 << 2)
|
||||
-#define ZEBRA_IFA_NOPREFIXROUTE (1 << 3)
|
||||
-
|
||||
/* N.B. the ZEBRA_IFA_PEER flag should be set if and only if
|
||||
a peer address has been configured. If this flag is set,
|
||||
the destination field must contain the peer address.
|
||||
--- b/zebra/connected.c
|
||||
+++ a/zebra/connected.c
|
||||
@@ -282,15 +282,13 @@
|
||||
return;
|
||||
}
|
||||
|
||||
+ rib_add(afi, SAFI_UNICAST, zvrf->vrf->vrf_id, ZEBRA_ROUTE_CONNECT, 0,
|
||||
+ flags, &p, NULL, &nh, 0, zvrf->table_id, metric, 0, 0, 0,
|
||||
+ false);
|
||||
- if (!CHECK_FLAG(ifc->flags, ZEBRA_IFA_NOPREFIXROUTE)) {
|
||||
- rib_add(afi, SAFI_UNICAST, zvrf->vrf->vrf_id,
|
||||
- ZEBRA_ROUTE_CONNECT, 0, flags, &p, NULL, &nh, 0,
|
||||
- zvrf->table_id, metric, 0, 0, 0, false);
|
||||
|
||||
+ rib_add(afi, SAFI_MULTICAST, zvrf->vrf->vrf_id, ZEBRA_ROUTE_CONNECT, 0,
|
||||
+ flags, &p, NULL, &nh, 0, zvrf->table_id, metric, 0, 0, 0,
|
||||
+ false);
|
||||
- rib_add(afi, SAFI_MULTICAST, zvrf->vrf->vrf_id,
|
||||
- ZEBRA_ROUTE_CONNECT, 0, flags, &p, NULL, &nh, 0,
|
||||
- zvrf->table_id, metric, 0, 0, 0, false);
|
||||
- }
|
||||
|
||||
if (install_local) {
|
||||
rib_add(afi, SAFI_UNICAST, zvrf->vrf->vrf_id, ZEBRA_ROUTE_LOCAL,
|
||||
@@ -483,15 +481,11 @@
|
||||
* Same logic as for connected_up(): push the changes into the
|
||||
* head.
|
||||
*/
|
||||
+ rib_delete(afi, SAFI_UNICAST, zvrf->vrf->vrf_id, ZEBRA_ROUTE_CONNECT, 0,
|
||||
+ 0, &p, NULL, &nh, 0, zvrf->table_id, 0, 0, false);
|
||||
- if (!CHECK_FLAG(ifc->flags, ZEBRA_IFA_NOPREFIXROUTE)) {
|
||||
- rib_delete(afi, SAFI_UNICAST, zvrf->vrf->vrf_id,
|
||||
- ZEBRA_ROUTE_CONNECT, 0, 0, &p, NULL, &nh, 0,
|
||||
- zvrf->table_id, 0, 0, false);
|
||||
|
||||
+ rib_delete(afi, SAFI_MULTICAST, zvrf->vrf->vrf_id, ZEBRA_ROUTE_CONNECT,
|
||||
+ 0, 0, &p, NULL, &nh, 0, zvrf->table_id, 0, 0, false);
|
||||
- rib_delete(afi, SAFI_MULTICAST, zvrf->vrf->vrf_id,
|
||||
- ZEBRA_ROUTE_CONNECT, 0, 0, &p, NULL, &nh, 0,
|
||||
- zvrf->table_id, 0, 0, false);
|
||||
- }
|
||||
|
||||
if (remove_local) {
|
||||
rib_delete(afi, SAFI_UNICAST, zvrf->vrf->vrf_id,
|
||||
--- b/zebra/interface.c
|
||||
+++ a/zebra/interface.c
|
||||
@@ -1317,9 +1317,6 @@
|
||||
if (dplane_ctx_intf_is_secondary(ctx))
|
||||
SET_FLAG(flags, ZEBRA_IFA_SECONDARY);
|
||||
|
||||
- if (dplane_ctx_intf_is_noprefixroute(ctx))
|
||||
- SET_FLAG(flags, ZEBRA_IFA_NOPREFIXROUTE);
|
||||
-
|
||||
/* Label? */
|
||||
if (dplane_ctx_intf_has_label(ctx))
|
||||
label = dplane_ctx_get_intf_label(ctx);
|
||||
@@ -2337,12 +2334,6 @@
|
||||
else if (CHECK_FLAG(connected->flags, ZEBRA_IFA_SECONDARY))
|
||||
vty_out(vty, " secondary");
|
||||
|
||||
- if (json)
|
||||
- json_object_boolean_add(json_addr, "noPrefixRoute",
|
||||
- CHECK_FLAG(connected->flags, ZEBRA_IFA_NOPREFIXROUTE));
|
||||
- else if (CHECK_FLAG(connected->flags, ZEBRA_IFA_NOPREFIXROUTE))
|
||||
- vty_out(vty, " noprefixroute");
|
||||
-
|
||||
if (json)
|
||||
json_object_boolean_add(
|
||||
json_addr, "unnumbered",
|
||||
@ -0,0 +1,32 @@
|
||||
From ff6db1027f8f36df657ff2e5ea167773752537ed Mon Sep 17 00:00:00 2001
|
||||
From: Donald Sharp <sharpd@nvidia.com>
|
||||
Date: Thu, 21 Jul 2022 08:11:58 -0400
|
||||
Subject: [PATCH] bgpd: Make sure hdr length is at a minimum of what is
|
||||
expected
|
||||
|
||||
Ensure that if the capability length specified is enough data.
|
||||
|
||||
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
|
||||
---
|
||||
bgpd/bgp_packet.c | 8 ++++++++
|
||||
1 file changed, 8 insertions(+)
|
||||
|
||||
diff --git a/bgpd/bgp_packet.c b/bgpd/bgp_packet.c
|
||||
index dbf6c0b2e99..45752a8ab6d 100644
|
||||
--- a/bgpd/bgp_packet.c
|
||||
+++ b/bgpd/bgp_packet.c
|
||||
@@ -2620,6 +2620,14 @@ static int bgp_capability_msg_parse(struct peer *peer, uint8_t *pnt,
|
||||
"%s CAPABILITY has action: %d, code: %u, length %u",
|
||||
peer->host, action, hdr->code, hdr->length);
|
||||
|
||||
+ if (hdr->length < sizeof(struct capability_mp_data)) {
|
||||
+ zlog_info(
|
||||
+ "%pBP Capability structure is not properly filled out, expected at least %zu bytes but header length specified is %d",
|
||||
+ peer, sizeof(struct capability_mp_data),
|
||||
+ hdr->length);
|
||||
+ return BGP_Stop;
|
||||
+ }
|
||||
+
|
||||
/* Capability length check. */
|
||||
if ((pnt + hdr->length + 3) > end) {
|
||||
zlog_info("%s Capability length error", peer->host);
|
||||
@ -0,0 +1,67 @@
|
||||
From 1d42fb941af17a29346b2af03338f8e18470f009 Mon Sep 17 00:00:00 2001
|
||||
From: Michal Ruprich <michalruprich@gmail.com>
|
||||
Date: Tue, 22 Nov 2022 12:38:05 +0100
|
||||
Subject: [PATCH] tools: Enable start of FRR for non-root user
|
||||
|
||||
There might be use cases when this would make sense, for example
|
||||
running FRR in a container as a designated user.
|
||||
|
||||
Signed-off-by: Michal Ruprich <mruprich@redhat.com>
|
||||
---
|
||||
tools/etc/frr/daemons | 5 +++++
|
||||
tools/frrcommon.sh.in | 4 ++++
|
||||
2 files changed, 9 insertions(+)
|
||||
|
||||
diff --git a/tools/etc/frr/daemons b/tools/etc/frr/daemons
|
||||
index 8aa08871e35..2427bfff777 100644
|
||||
--- a/tools/etc/frr/daemons
|
||||
+++ b/tools/etc/frr/daemons
|
||||
@@ -91,6 +91,12 @@ pathd_options=" -A 127.0.0.1"
|
||||
# say BGP.
|
||||
#MAX_FDS=1024
|
||||
|
||||
+# Uncomment this option if you want to run FRR as a non-root user. Note that
|
||||
+# you should know what you are doing since most of the daemons need root
|
||||
+# to work. This could be useful if you want to run FRR in a container
|
||||
+# for instance.
|
||||
+# FRR_NO_ROOT="yes"
|
||||
+
|
||||
# The list of daemons to watch is automatically generated by the init script.
|
||||
#watchfrr_options=""
|
||||
|
||||
diff --git a/tools/frrcommon.sh.in b/tools/frrcommon.sh.in
|
||||
index 3c16c27c6df..4f095a176e4 100755
|
||||
--- a/tools/frrcommon.sh.in
|
||||
+++ b/tools/frrcommon.sh.in
|
||||
@@ -43,6 +43,10 @@ RELOAD_SCRIPT="$D_PATH/frr-reload.py"
|
||||
#
|
||||
|
||||
is_user_root () {
|
||||
+ if [[ ! -z $FRR_NO_ROOT && "${FRR_NO_ROOT}" == "yes" ]]; then
|
||||
+ return 0
|
||||
+ fi
|
||||
+
|
||||
[ "${EUID:-$(id -u)}" -eq 0 ] || {
|
||||
log_failure_msg "Only users having EUID=0 can start/stop daemons"
|
||||
return 1
|
||||
diff --git a/doc/user/setup.rst b/doc/user/setup.rst
|
||||
index 25934df..51ffd32 100644
|
||||
--- a/doc/user/setup.rst
|
||||
+++ b/doc/user/setup.rst
|
||||
@@ -114,6 +114,16 @@ most operating systems is 1024. If the operator plans to run bgp with
|
||||
several thousands of peers than this is where we would modify FRR to
|
||||
allow this to happen.
|
||||
|
||||
+::
|
||||
+
|
||||
+ FRR_NO_ROOT="yes"
|
||||
+
|
||||
+This option allows you to run FRR as a non-root user. Use this option
|
||||
+only when you know what you are doing since most of the daemons
|
||||
+in FRR will not be able to run under a regular user. This option
|
||||
+is useful for example when you run FRR in a container with a designated
|
||||
+user instead of root.
|
||||
+
|
||||
::
|
||||
|
||||
zebra_options=" -s 90000000 --daemon -A 127.0.0.1"
|
||||
@ -0,0 +1,59 @@
|
||||
From 3e46b43e3788f0f87bae56a86b54d412b4710286 Mon Sep 17 00:00:00 2001
|
||||
From: Donald Sharp <sharpd@nvidia.com>
|
||||
Date: Fri, 30 Sep 2022 08:51:45 -0400
|
||||
Subject: [PATCH] bgpd: Ensure FRR has enough data to read 2 bytes in
|
||||
peek_for_as4_capability
|
||||
|
||||
In peek_for_as4_capability the code is checking that the
|
||||
stream has at least 2 bytes to read ( the opt_type and the
|
||||
opt_length ). However if BGP_OPEN_EXT_OPT_PARAMS_CAPABLE(peer)
|
||||
is configured then FRR is reading 3 bytes. Which is not good
|
||||
since the packet could be badly formated. Ensure that
|
||||
FRR has the appropriate data length to read the data.
|
||||
|
||||
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
|
||||
---
|
||||
bgpd/bgp_open.c | 27 +++++++++++++++++++++------
|
||||
1 file changed, 21 insertions(+), 6 deletions(-)
|
||||
|
||||
diff --git a/bgpd/bgp_open.c b/bgpd/bgp_open.c
|
||||
index 7248f034a5a..a760a7ca013 100644
|
||||
--- a/bgpd/bgp_open.c
|
||||
+++ b/bgpd/bgp_open.c
|
||||
@@ -1185,15 +1185,30 @@ as_t peek_for_as4_capability(struct peer *peer, uint16_t length)
|
||||
uint8_t opt_type;
|
||||
uint16_t opt_length;
|
||||
|
||||
- /* Check the length. */
|
||||
- if (stream_get_getp(s) + 2 > end)
|
||||
+ /* Ensure we can read the option type */
|
||||
+ if (stream_get_getp(s) + 1 > end)
|
||||
goto end;
|
||||
|
||||
- /* Fetch option type and length. */
|
||||
+ /* Fetch the option type */
|
||||
opt_type = stream_getc(s);
|
||||
- opt_length = BGP_OPEN_EXT_OPT_PARAMS_CAPABLE(peer)
|
||||
- ? stream_getw(s)
|
||||
- : stream_getc(s);
|
||||
+
|
||||
+ /*
|
||||
+ * Check the length and fetch the opt_length
|
||||
+ * If the peer is BGP_OPEN_EXT_OPT_PARAMS_CAPABLE(peer)
|
||||
+ * then we do a getw which is 2 bytes. So we need to
|
||||
+ * ensure that we can read that as well
|
||||
+ */
|
||||
+ if (BGP_OPEN_EXT_OPT_PARAMS_CAPABLE(peer)) {
|
||||
+ if (stream_get_getp(s) + 2 > end)
|
||||
+ goto end;
|
||||
+
|
||||
+ opt_length = stream_getw(s);
|
||||
+ } else {
|
||||
+ if (stream_get_getp(s) + 1 > end)
|
||||
+ goto end;
|
||||
+
|
||||
+ opt_length = stream_getc(s);
|
||||
+ }
|
||||
|
||||
/* Option length check. */
|
||||
if (stream_get_getp(s) + opt_length > end)
|
||||
@ -0,0 +1,47 @@
|
||||
From 766eec1b7accffe2c04a5c9ebb14e9f487bb9f78 Mon Sep 17 00:00:00 2001
|
||||
From: Donald Sharp <sharpd@nvidia.com>
|
||||
Date: Wed, 2 Nov 2022 13:24:48 -0400
|
||||
Subject: [PATCH] bgpd: Ensure that bgp open message stream has enough data to
|
||||
read
|
||||
|
||||
If a operator receives an invalid packet that is of insufficient size
|
||||
then it is possible for BGP to assert during reading of the packet
|
||||
instead of gracefully resetting the connection with the peer.
|
||||
|
||||
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
|
||||
---
|
||||
bgpd/bgp_packet.c | 19 +++++++++++++++++++
|
||||
1 file changed, 19 insertions(+)
|
||||
|
||||
diff --git a/bgpd/bgp_packet.c b/bgpd/bgp_packet.c
|
||||
index 769f9613da8..72d6a923175 100644
|
||||
--- a/bgpd/bgp_packet.c
|
||||
+++ b/bgpd/bgp_packet.c
|
||||
@@ -1386,8 +1386,27 @@ static int bgp_open_receive(struct peer *peer, bgp_size_t size)
|
||||
|| CHECK_FLAG(peer->flags, PEER_FLAG_EXTENDED_OPT_PARAMS)) {
|
||||
uint8_t opttype;
|
||||
|
||||
+ if (STREAM_READABLE(peer->curr) < 1) {
|
||||
+ flog_err(
|
||||
+ EC_BGP_PKT_OPEN,
|
||||
+ "%s: stream does not have enough bytes for extended optional parameters",
|
||||
+ peer->host);
|
||||
+ bgp_notify_send(peer, BGP_NOTIFY_OPEN_ERR,
|
||||
+ BGP_NOTIFY_OPEN_MALFORMED_ATTR);
|
||||
+ return BGP_Stop;
|
||||
+ }
|
||||
+
|
||||
opttype = stream_getc(peer->curr);
|
||||
if (opttype == BGP_OPEN_NON_EXT_OPT_TYPE_EXTENDED_LENGTH) {
|
||||
+ if (STREAM_READABLE(peer->curr) < 2) {
|
||||
+ flog_err(
|
||||
+ EC_BGP_PKT_OPEN,
|
||||
+ "%s: stream does not have enough bytes to read the extended optional parameters optlen",
|
||||
+ peer->host);
|
||||
+ bgp_notify_send(peer, BGP_NOTIFY_OPEN_ERR,
|
||||
+ BGP_NOTIFY_OPEN_MALFORMED_ATTR);
|
||||
+ return BGP_Stop;
|
||||
+ }
|
||||
optlen = stream_getw(peer->curr);
|
||||
SET_FLAG(peer->sflags,
|
||||
PEER_STATUS_EXT_OPT_PARAMS_LENGTH);
|
||||
@ -0,0 +1,70 @@
|
||||
From 1117baca3c592877a4d8a13ed6a1d9bd83977487 Mon Sep 17 00:00:00 2001
|
||||
From: Donald Sharp <sharpd@nvidia.com>
|
||||
Date: Fri, 30 Sep 2022 08:57:43 -0400
|
||||
Subject: [PATCH] bgpd: Ensure FRR has enough data to read 2 bytes in
|
||||
bgp_open_option_parse
|
||||
|
||||
In bgp_open_option_parse the code is checking that the
|
||||
stream has at least 2 bytes to read ( the opt_type and
|
||||
the opt_length). However if BGP_OPEN_EXT_OPT_PARAMS_CAPABLE(peer)
|
||||
is configured then FRR is reading 3 bytes. Which is not good
|
||||
since the packet could be badly formateed. Ensure that
|
||||
FRR has the appropriate data length to read the data.
|
||||
|
||||
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
|
||||
---
|
||||
bgpd/bgp_open.c | 35 ++++++++++++++++++++++++++++-------
|
||||
1 file changed, 28 insertions(+), 7 deletions(-)
|
||||
|
||||
diff --git a/bgpd/bgp_open.c b/bgpd/bgp_open.c
|
||||
index a760a7ca013..d1667fac261 100644
|
||||
--- a/bgpd/bgp_open.c
|
||||
+++ b/bgpd/bgp_open.c
|
||||
@@ -1278,19 +1278,40 @@ int bgp_open_option_parse(struct peer *peer, uint16_t length,
|
||||
uint8_t opt_type;
|
||||
uint16_t opt_length;
|
||||
|
||||
- /* Must have at least an OPEN option header */
|
||||
- if (STREAM_READABLE(s) < 2) {
|
||||
+ /*
|
||||
+ * Check that we can read the opt_type and fetch it
|
||||
+ */
|
||||
+ if (STREAM_READABLE(s) < 1) {
|
||||
zlog_info("%s Option length error", peer->host);
|
||||
bgp_notify_send(peer, BGP_NOTIFY_OPEN_ERR,
|
||||
BGP_NOTIFY_OPEN_MALFORMED_ATTR);
|
||||
return -1;
|
||||
}
|
||||
-
|
||||
- /* Fetch option type and length. */
|
||||
opt_type = stream_getc(s);
|
||||
- opt_length = BGP_OPEN_EXT_OPT_PARAMS_CAPABLE(peer)
|
||||
- ? stream_getw(s)
|
||||
- : stream_getc(s);
|
||||
+
|
||||
+ /*
|
||||
+ * Check the length of the stream to ensure that
|
||||
+ * FRR can properly read the opt_length. Then read it
|
||||
+ */
|
||||
+ if (BGP_OPEN_EXT_OPT_PARAMS_CAPABLE(peer)) {
|
||||
+ if (STREAM_READABLE(s) < 2) {
|
||||
+ zlog_info("%s Option length error", peer->host);
|
||||
+ bgp_notify_send(peer, BGP_NOTIFY_OPEN_ERR,
|
||||
+ BGP_NOTIFY_OPEN_MALFORMED_ATTR);
|
||||
+ return -1;
|
||||
+ }
|
||||
+
|
||||
+ opt_length = stream_getw(s);
|
||||
+ } else {
|
||||
+ if (STREAM_READABLE(s) < 1) {
|
||||
+ zlog_info("%s Option length error", peer->host);
|
||||
+ bgp_notify_send(peer, BGP_NOTIFY_OPEN_ERR,
|
||||
+ BGP_NOTIFY_OPEN_MALFORMED_ATTR);
|
||||
+ return -1;
|
||||
+ }
|
||||
+
|
||||
+ opt_length = stream_getc(s);
|
||||
+ }
|
||||
|
||||
/* Option length check. */
|
||||
if (STREAM_READABLE(s) < opt_length) {
|
||||
@ -0,0 +1,255 @@
|
||||
From edc3f63167fd95e4e70287743c9b252415c9336e Mon Sep 17 00:00:00 2001
|
||||
From: Philippe Guibert <philippe.guibert@6wind.com>
|
||||
Date: Thu, 7 Jul 2022 14:33:48 +0200
|
||||
Subject: [PATCH] bfdd: allow l3vrf bfd sessions without udp leaking
|
||||
|
||||
Until now, when in vrf-lite mode, the BFD implementation
|
||||
creates a single UDP socket and relies on the following
|
||||
sysctl value to 1:
|
||||
|
||||
echo 1 > /proc/sys/net/ipv4/udp_l3mdev_accept
|
||||
|
||||
With this setting, the incoming BFD packets from a given
|
||||
vrf, would leak to the default vrf, and would match the
|
||||
UDP socket.
|
||||
|
||||
The drawback of this solution is that udp packets received
|
||||
on a given vrf may leak to an other vrf. This may be a
|
||||
security concern.
|
||||
|
||||
The commit addresses this issue by avoiding this leak
|
||||
mechanism. An UDP socket is created for each vrf, and each
|
||||
socket uses new setsockopt option: SO_REUSEADDR + SO_REUSEPORT.
|
||||
|
||||
With this option, the incoming UDP packets are distributed on
|
||||
the available sockets. The impact of those options with l3mdev
|
||||
devices is unknown. It has been observed that this option is not
|
||||
needed, until the default vrf sockets are created.
|
||||
|
||||
To ensure the BFD packets are correctly routed to the appropriate
|
||||
socket, a BPF filter has been put in place and attached to the
|
||||
sockets : SO_ATTACH_REUSEPORT_CBPF. This option adds a criterium
|
||||
to force the packet to choose a given socket. If initial criteria
|
||||
from the default distribution algorithm were not good, at least
|
||||
two sockets would be available, and the CBPF would force the
|
||||
selection to the same socket. This would come to the situation
|
||||
where an incoming packet would be processed on a different vrf.
|
||||
|
||||
The bpf code is the following one:
|
||||
|
||||
struct sock_filter code[] = {
|
||||
{ BPF_RET | BPF_K, 0, 0, 0 },
|
||||
};
|
||||
|
||||
struct sock_fprog p = {
|
||||
.len = sizeof(code)/sizeof(struct sock_filter),
|
||||
.filter = code,
|
||||
};
|
||||
|
||||
if (setsockopt(sd, SOL_SOCKET, SO_ATTACH_REUSEPORT_CBPF, &p, sizeof(p))) {
|
||||
zlog_warn("unable to set SO_ATTACH_REUSEPORT_CBPF on socket: %s",
|
||||
strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
|
||||
Some tests have been done with by creating vrf contexts, and by using
|
||||
the below vtysh configuration:
|
||||
|
||||
ip route 2.2.2.2/32 10.126.0.2
|
||||
vrf vrf2
|
||||
ip route 2.2.2.2/32 10.126.0.2
|
||||
!
|
||||
interface ntfp2
|
||||
ip address 10.126.0.1/24
|
||||
!
|
||||
interface ntfp3 vrf vrf4
|
||||
ip address 10.126.0.1/24
|
||||
!
|
||||
interface ntfp2 vrf vrf1
|
||||
ip address 10.126.0.1/24
|
||||
!
|
||||
interface ntfp2.100 vrf vrf2
|
||||
ip address 10.126.0.1/24
|
||||
!
|
||||
interface ntfp2.200 vrf vrf3
|
||||
ip address 10.126.0.1/24
|
||||
!
|
||||
line vty
|
||||
!
|
||||
bfd
|
||||
peer 10.126.0.2 vrf vrf2
|
||||
!
|
||||
peer 10.126.0.2 vrf vrf3
|
||||
!
|
||||
peer 10.126.0.2
|
||||
!
|
||||
peer 10.126.0.2 vrf vrf4
|
||||
!
|
||||
peer 2.2.2.2 multihop local-address 1.1.1.1
|
||||
!
|
||||
peer 2.2.2.2 multihop local-address 1.1.1.1 vrf vrf2
|
||||
transmit-interval 1500
|
||||
receive-interval 1500
|
||||
!
|
||||
|
||||
The results showed no issue related to packets received by
|
||||
the wrong vrf. Even changing the udp_l3mdev_accept flag to
|
||||
1 did not change the test results.
|
||||
|
||||
Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
|
||||
---
|
||||
bfdd/bfd.c | 66 +++++++++++++++++++++++------------------------
|
||||
bfdd/bfd_packet.c | 45 ++++++++++++++++++++++++++++++++
|
||||
2 files changed, 77 insertions(+), 34 deletions(-)
|
||||
|
||||
diff --git a/bfdd/bfd.c b/bfdd/bfd.c
|
||||
index 483beb1b17c..a1619263588 100644
|
||||
--- a/bfdd/bfd.c
|
||||
+++ b/bfdd/bfd.c
|
||||
@@ -1950,40 +1950,38 @@ static int bfd_vrf_enable(struct vrf *vrf)
|
||||
if (bglobal.debug_zebra)
|
||||
zlog_debug("VRF enable add %s id %u", vrf->name, vrf->vrf_id);
|
||||
|
||||
- if (vrf->vrf_id == VRF_DEFAULT ||
|
||||
- vrf_get_backend() == VRF_BACKEND_NETNS) {
|
||||
- if (!bvrf->bg_shop)
|
||||
- bvrf->bg_shop = bp_udp_shop(vrf);
|
||||
- if (!bvrf->bg_mhop)
|
||||
- bvrf->bg_mhop = bp_udp_mhop(vrf);
|
||||
- if (!bvrf->bg_shop6)
|
||||
- bvrf->bg_shop6 = bp_udp6_shop(vrf);
|
||||
- if (!bvrf->bg_mhop6)
|
||||
- bvrf->bg_mhop6 = bp_udp6_mhop(vrf);
|
||||
- if (!bvrf->bg_echo)
|
||||
- bvrf->bg_echo = bp_echo_socket(vrf);
|
||||
- if (!bvrf->bg_echov6)
|
||||
- bvrf->bg_echov6 = bp_echov6_socket(vrf);
|
||||
-
|
||||
- if (!bvrf->bg_ev[0] && bvrf->bg_shop != -1)
|
||||
- thread_add_read(master, bfd_recv_cb, bvrf,
|
||||
- bvrf->bg_shop, &bvrf->bg_ev[0]);
|
||||
- if (!bvrf->bg_ev[1] && bvrf->bg_mhop != -1)
|
||||
- thread_add_read(master, bfd_recv_cb, bvrf,
|
||||
- bvrf->bg_mhop, &bvrf->bg_ev[1]);
|
||||
- if (!bvrf->bg_ev[2] && bvrf->bg_shop6 != -1)
|
||||
- thread_add_read(master, bfd_recv_cb, bvrf,
|
||||
- bvrf->bg_shop6, &bvrf->bg_ev[2]);
|
||||
- if (!bvrf->bg_ev[3] && bvrf->bg_mhop6 != -1)
|
||||
- thread_add_read(master, bfd_recv_cb, bvrf,
|
||||
- bvrf->bg_mhop6, &bvrf->bg_ev[3]);
|
||||
- if (!bvrf->bg_ev[4] && bvrf->bg_echo != -1)
|
||||
- thread_add_read(master, bfd_recv_cb, bvrf,
|
||||
- bvrf->bg_echo, &bvrf->bg_ev[4]);
|
||||
- if (!bvrf->bg_ev[5] && bvrf->bg_echov6 != -1)
|
||||
- thread_add_read(master, bfd_recv_cb, bvrf,
|
||||
- bvrf->bg_echov6, &bvrf->bg_ev[5]);
|
||||
- }
|
||||
+ if (!bvrf->bg_shop)
|
||||
+ bvrf->bg_shop = bp_udp_shop(vrf);
|
||||
+ if (!bvrf->bg_mhop)
|
||||
+ bvrf->bg_mhop = bp_udp_mhop(vrf);
|
||||
+ if (!bvrf->bg_shop6)
|
||||
+ bvrf->bg_shop6 = bp_udp6_shop(vrf);
|
||||
+ if (!bvrf->bg_mhop6)
|
||||
+ bvrf->bg_mhop6 = bp_udp6_mhop(vrf);
|
||||
+ if (!bvrf->bg_echo)
|
||||
+ bvrf->bg_echo = bp_echo_socket(vrf);
|
||||
+ if (!bvrf->bg_echov6)
|
||||
+ bvrf->bg_echov6 = bp_echov6_socket(vrf);
|
||||
+
|
||||
+ if (!bvrf->bg_ev[0] && bvrf->bg_shop != -1)
|
||||
+ thread_add_read(master, bfd_recv_cb, bvrf, bvrf->bg_shop,
|
||||
+ &bvrf->bg_ev[0]);
|
||||
+ if (!bvrf->bg_ev[1] && bvrf->bg_mhop != -1)
|
||||
+ thread_add_read(master, bfd_recv_cb, bvrf, bvrf->bg_mhop,
|
||||
+ &bvrf->bg_ev[1]);
|
||||
+ if (!bvrf->bg_ev[2] && bvrf->bg_shop6 != -1)
|
||||
+ thread_add_read(master, bfd_recv_cb, bvrf, bvrf->bg_shop6,
|
||||
+ &bvrf->bg_ev[2]);
|
||||
+ if (!bvrf->bg_ev[3] && bvrf->bg_mhop6 != -1)
|
||||
+ thread_add_read(master, bfd_recv_cb, bvrf, bvrf->bg_mhop6,
|
||||
+ &bvrf->bg_ev[3]);
|
||||
+ if (!bvrf->bg_ev[4] && bvrf->bg_echo != -1)
|
||||
+ thread_add_read(master, bfd_recv_cb, bvrf, bvrf->bg_echo,
|
||||
+ &bvrf->bg_ev[4]);
|
||||
+ if (!bvrf->bg_ev[5] && bvrf->bg_echov6 != -1)
|
||||
+ thread_add_read(master, bfd_recv_cb, bvrf, bvrf->bg_echov6,
|
||||
+ &bvrf->bg_ev[5]);
|
||||
+
|
||||
if (vrf->vrf_id != VRF_DEFAULT) {
|
||||
bfdd_zclient_register(vrf->vrf_id);
|
||||
bfdd_sessions_enable_vrf(vrf);
|
||||
diff --git a/bfdd/bfd_packet.c b/bfdd/bfd_packet.c
|
||||
index d34d6427628..054a9bfbf21 100644
|
||||
--- a/bfdd/bfd_packet.c
|
||||
+++ b/bfdd/bfd_packet.c
|
||||
@@ -876,6 +876,14 @@ void bfd_recv_cb(struct thread *t)
|
||||
"no session found");
|
||||
return;
|
||||
}
|
||||
+ /*
|
||||
+ * We may have a situation where received packet is on wrong vrf
|
||||
+ */
|
||||
+ if (bfd && bfd->vrf && bfd->vrf != bvrf->vrf) {
|
||||
+ cp_debug(is_mhop, &peer, &local, ifindex, vrfid,
|
||||
+ "wrong vrfid.");
|
||||
+ return;
|
||||
+ }
|
||||
|
||||
/* Ensure that existing good sessions are not overridden. */
|
||||
if (!cp->discrs.remote_discr && bfd->ses_state != PTM_BFD_DOWN &&
|
||||
@@ -1208,10 +1216,41 @@ int bp_set_tos(int sd, uint8_t value)
|
||||
return 0;
|
||||
}
|
||||
|
||||
+static bool bp_set_reuse_addr(int sd)
|
||||
+{
|
||||
+ int one = 1;
|
||||
+
|
||||
+ if (setsockopt(sd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)) == -1) {
|
||||
+ zlog_warn("set-reuse-addr: setsockopt(SO_REUSEADDR, %d): %s",
|
||||
+ one, strerror(errno));
|
||||
+ return false;
|
||||
+ }
|
||||
+ return true;
|
||||
+}
|
||||
+
|
||||
+static bool bp_set_reuse_port(int sd)
|
||||
+{
|
||||
+ int one = 1;
|
||||
+
|
||||
+ if (setsockopt(sd, SOL_SOCKET, SO_REUSEPORT, &one, sizeof(one)) == -1) {
|
||||
+ zlog_warn("set-reuse-port: setsockopt(SO_REUSEPORT, %d): %s",
|
||||
+ one, strerror(errno));
|
||||
+ return false;
|
||||
+ }
|
||||
+ return true;
|
||||
+}
|
||||
+
|
||||
+
|
||||
static void bp_set_ipopts(int sd)
|
||||
{
|
||||
int rcvttl = BFD_RCV_TTL_VAL;
|
||||
|
||||
+ if (!bp_set_reuse_addr(sd))
|
||||
+ zlog_fatal("set-reuse-addr: failed");
|
||||
+
|
||||
+ if (!bp_set_reuse_port(sd))
|
||||
+ zlog_fatal("set-reuse-port: failed");
|
||||
+
|
||||
if (bp_set_ttl(sd, BFD_TTL_VAL) != 0)
|
||||
zlog_fatal("set-ipopts: TTL configuration failed");
|
||||
|
||||
@@ -1453,6 +1492,12 @@ static void bp_set_ipv6opts(int sd)
|
||||
int ipv6_pktinfo = BFD_IPV6_PKT_INFO_VAL;
|
||||
int ipv6_only = BFD_IPV6_ONLY_VAL;
|
||||
|
||||
+ if (!bp_set_reuse_addr(sd))
|
||||
+ zlog_fatal("set-reuse-addr: failed");
|
||||
+
|
||||
+ if (!bp_set_reuse_port(sd))
|
||||
+ zlog_fatal("set-reuse-port: failed");
|
||||
+
|
||||
if (bp_set_ttlv6(sd, BFD_TTL_VAL) == -1)
|
||||
zlog_fatal(
|
||||
"set-ipv6opts: setsockopt(IPV6_UNICAST_HOPS, %d): %s",
|
||||
@ -0,0 +1,129 @@
|
||||
From 46817adab03802355c3cce7b753c7a735bdcc5ae Mon Sep 17 00:00:00 2001
|
||||
From: Donatas Abraitis <donatas@opensourcerouting.org>
|
||||
Date: Thu, 13 Jul 2023 22:32:03 +0300
|
||||
Subject: [PATCH] bgpd: Use treat-as-withdraw for tunnel encapsulation
|
||||
attribute
|
||||
|
||||
Before this path we used session reset method, which is discouraged by rfc7606.
|
||||
|
||||
Handle this as rfc requires.
|
||||
|
||||
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
|
||||
(cherry picked from commit bcb6b58d9530173df41d3a3cbc4c600ee0b4b186)
|
||||
---
|
||||
bgpd/bgp_attr.c | 61 ++++++++++++++++++++-----------------------------
|
||||
1 file changed, 25 insertions(+), 36 deletions(-)
|
||||
|
||||
diff --git a/bgpd/bgp_attr.c b/bgpd/bgp_attr.c
|
||||
index 058fae23cbd..1c0803cfd8e 100644
|
||||
--- a/bgpd/bgp_attr.c
|
||||
+++ b/bgpd/bgp_attr.c
|
||||
@@ -1301,6 +1301,7 @@ bgp_attr_malformed(struct bgp_attr_parser_args *args, uint8_t subcode,
|
||||
case BGP_ATTR_LARGE_COMMUNITIES:
|
||||
case BGP_ATTR_ORIGINATOR_ID:
|
||||
case BGP_ATTR_CLUSTER_LIST:
|
||||
+ case BGP_ATTR_ENCAP:
|
||||
return BGP_ATTR_PARSE_WITHDRAW;
|
||||
case BGP_ATTR_MP_REACH_NLRI:
|
||||
case BGP_ATTR_MP_UNREACH_NLRI:
|
||||
@@ -2434,26 +2435,21 @@ bgp_attr_ipv6_ext_communities(struct bgp_attr_parser_args *args)
|
||||
}
|
||||
|
||||
/* Parse Tunnel Encap attribute in an UPDATE */
|
||||
-static int bgp_attr_encap(uint8_t type, struct peer *peer, /* IN */
|
||||
- bgp_size_t length, /* IN: attr's length field */
|
||||
- struct attr *attr, /* IN: caller already allocated */
|
||||
- uint8_t flag, /* IN: attr's flags field */
|
||||
- uint8_t *startp)
|
||||
+static int bgp_attr_encap(struct bgp_attr_parser_args *args)
|
||||
{
|
||||
- bgp_size_t total;
|
||||
uint16_t tunneltype = 0;
|
||||
-
|
||||
- total = length + (CHECK_FLAG(flag, BGP_ATTR_FLAG_EXTLEN) ? 4 : 3);
|
||||
+ struct peer *const peer = args->peer;
|
||||
+ struct attr *const attr = args->attr;
|
||||
+ bgp_size_t length = args->length;
|
||||
+ uint8_t type = args->type;
|
||||
+ uint8_t flag = args->flags;
|
||||
|
||||
if (!CHECK_FLAG(flag, BGP_ATTR_FLAG_TRANS)
|
||||
|| !CHECK_FLAG(flag, BGP_ATTR_FLAG_OPTIONAL)) {
|
||||
- zlog_info(
|
||||
- "Tunnel Encap attribute flag isn't optional and transitive %d",
|
||||
- flag);
|
||||
- bgp_notify_send_with_data(peer, BGP_NOTIFY_UPDATE_ERR,
|
||||
- BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR,
|
||||
- startp, total);
|
||||
- return -1;
|
||||
+ zlog_err("Tunnel Encap attribute flag isn't optional and transitive %d",
|
||||
+ flag);
|
||||
+ return bgp_attr_malformed(args, BGP_NOTIFY_UPDATE_OPT_ATTR_ERR,
|
||||
+ args->total);
|
||||
}
|
||||
|
||||
if (BGP_ATTR_ENCAP == type) {
|
||||
@@ -2461,12 +2457,11 @@ static int bgp_attr_encap(uint8_t type, struct peer *peer, /* IN */
|
||||
uint16_t tlv_length;
|
||||
|
||||
if (length < 4) {
|
||||
- zlog_info(
|
||||
+ zlog_err(
|
||||
"Tunnel Encap attribute not long enough to contain outer T,L");
|
||||
- bgp_notify_send_with_data(
|
||||
- peer, BGP_NOTIFY_UPDATE_ERR,
|
||||
- BGP_NOTIFY_UPDATE_OPT_ATTR_ERR, startp, total);
|
||||
- return -1;
|
||||
+ return bgp_attr_malformed(args,
|
||||
+ BGP_NOTIFY_UPDATE_OPT_ATTR_ERR,
|
||||
+ args->total);
|
||||
}
|
||||
tunneltype = stream_getw(BGP_INPUT(peer));
|
||||
tlv_length = stream_getw(BGP_INPUT(peer));
|
||||
@@ -2496,13 +2491,11 @@ static int bgp_attr_encap(uint8_t type, struct peer *peer, /* IN */
|
||||
}
|
||||
|
||||
if (sublength > length) {
|
||||
- zlog_info(
|
||||
- "Tunnel Encap attribute sub-tlv length %d exceeds remaining length %d",
|
||||
- sublength, length);
|
||||
- bgp_notify_send_with_data(
|
||||
- peer, BGP_NOTIFY_UPDATE_ERR,
|
||||
- BGP_NOTIFY_UPDATE_OPT_ATTR_ERR, startp, total);
|
||||
- return -1;
|
||||
+ zlog_err("Tunnel Encap attribute sub-tlv length %d exceeds remaining length %d",
|
||||
+ sublength, length);
|
||||
+ return bgp_attr_malformed(args,
|
||||
+ BGP_NOTIFY_UPDATE_OPT_ATTR_ERR,
|
||||
+ args->total);
|
||||
}
|
||||
|
||||
/* alloc and copy sub-tlv */
|
||||
@@ -2550,13 +2543,10 @@ static int bgp_attr_encap(uint8_t type, struct peer *peer, /* IN */
|
||||
|
||||
if (length) {
|
||||
/* spurious leftover data */
|
||||
- zlog_info(
|
||||
- "Tunnel Encap attribute length is bad: %d leftover octets",
|
||||
- length);
|
||||
- bgp_notify_send_with_data(peer, BGP_NOTIFY_UPDATE_ERR,
|
||||
- BGP_NOTIFY_UPDATE_OPT_ATTR_ERR,
|
||||
- startp, total);
|
||||
- return -1;
|
||||
+ zlog_err("Tunnel Encap attribute length is bad: %d leftover octets",
|
||||
+ length);
|
||||
+ return bgp_attr_malformed(args, BGP_NOTIFY_UPDATE_OPT_ATTR_ERR,
|
||||
+ args->total);
|
||||
}
|
||||
|
||||
return 0;
|
||||
@@ -3396,8 +3386,7 @@ enum bgp_attr_parse_ret bgp_attr_parse(struct peer *peer, struct attr *attr,
|
||||
case BGP_ATTR_VNC:
|
||||
#endif
|
||||
case BGP_ATTR_ENCAP:
|
||||
- ret = bgp_attr_encap(type, peer, length, attr, flag,
|
||||
- startp);
|
||||
+ ret = bgp_attr_encap(&attr_args);
|
||||
break;
|
||||
case BGP_ATTR_PREFIX_SID:
|
||||
ret = bgp_attr_prefix_sid(&attr_args);
|
||||
@ -0,0 +1,93 @@
|
||||
From 767aaa3a80489bfc4ff097f932fc347e3db25b89 Mon Sep 17 00:00:00 2001
|
||||
From: Donatas Abraitis <donatas@opensourcerouting.org>
|
||||
Date: Mon, 21 Aug 2023 00:01:42 +0300
|
||||
Subject: [PATCH] bgpd: Do not explicitly print MAXTTL value for ebgp-multihop
|
||||
vty output
|
||||
|
||||
1. Create /etc/frr/frr.conf
|
||||
```
|
||||
frr version 7.5
|
||||
frr defaults traditional
|
||||
hostname centos8.localdomain
|
||||
no ip forwarding
|
||||
no ipv6 forwarding
|
||||
service integrated-vtysh-config
|
||||
line vty
|
||||
router bgp 4250001000
|
||||
neighbor 192.168.122.207 remote-as 65512
|
||||
neighbor 192.168.122.207 ebgp-multihop
|
||||
```
|
||||
|
||||
2. Start FRR
|
||||
`# systemctl start frr
|
||||
`
|
||||
3. Show running configuration. Note that FRR explicitly set and shows the default TTL (225)
|
||||
|
||||
```
|
||||
Building configuration...
|
||||
|
||||
Current configuration:
|
||||
!
|
||||
frr version 7.5
|
||||
frr defaults traditional
|
||||
hostname centos8.localdomain
|
||||
no ip forwarding
|
||||
no ipv6 forwarding
|
||||
service integrated-vtysh-config
|
||||
!
|
||||
router bgp 4250001000
|
||||
neighbor 192.168.122.207 remote-as 65512
|
||||
neighbor 192.168.122.207 ebgp-multihop 255
|
||||
!
|
||||
line vty
|
||||
!
|
||||
end
|
||||
```
|
||||
4. Copy initial frr.conf to frr.conf.new (no changes)
|
||||
`# cp /etc/frr/frr.conf /root/frr.conf.new
|
||||
`
|
||||
5. Run frr-reload.sh:
|
||||
|
||||
```
|
||||
$ /usr/lib/frr/frr-reload.py --test /root/frr.conf.new
|
||||
2023-08-20 20:15:48,050 INFO: Called via "Namespace(bindir='/usr/bin', confdir='/etc/frr', daemon='', debug=False, filename='/root/frr.conf.new', input=None, log_level='info', overwrite=False, pathspace=None, reload=False, rundir='/var/run/frr', stdout=False, test=True, vty_socket=None)"
|
||||
2023-08-20 20:15:48,050 INFO: Loading Config object from file /root/frr.conf.new
|
||||
2023-08-20 20:15:48,124 INFO: Loading Config object from vtysh show running
|
||||
|
||||
Lines To Delete
|
||||
===============
|
||||
router bgp 4250001000
|
||||
no neighbor 192.168.122.207 ebgp-multihop 255
|
||||
|
||||
Lines To Add
|
||||
============
|
||||
router bgp 4250001000
|
||||
neighbor 192.168.122.207 ebgp-multihop
|
||||
```
|
||||
|
||||
Closes https://github.com/FRRouting/frr/issues/14242
|
||||
|
||||
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
|
||||
---
|
||||
bgpd/bgp_vty.c | 8 ++++++--
|
||||
1 file changed, 6 insertions(+), 2 deletions(-)
|
||||
|
||||
diff --git a/bgpd/bgp_vty.c b/bgpd/bgp_vty.c
|
||||
index be0fe4283747..c9a9255f3392 100644
|
||||
--- a/bgpd/bgp_vty.c
|
||||
+++ b/bgpd/bgp_vty.c
|
||||
@@ -17735,8 +17735,12 @@ static void bgp_config_write_peer_global(struct vty *vty, struct bgp *bgp,
|
||||
&& !(peer->gtsm_hops != BGP_GTSM_HOPS_DISABLED
|
||||
&& peer->ttl == MAXTTL)) {
|
||||
if (!peer_group_active(peer) || g_peer->ttl != peer->ttl) {
|
||||
- vty_out(vty, " neighbor %s ebgp-multihop %d\n", addr,
|
||||
- peer->ttl);
|
||||
+ if (peer->ttl != MAXTTL)
|
||||
+ vty_out(vty, " neighbor %s ebgp-multihop %d\n",
|
||||
+ addr, peer->ttl);
|
||||
+ else
|
||||
+ vty_out(vty, " neighbor %s ebgp-multihop\n",
|
||||
+ addr);
|
||||
}
|
||||
}
|
||||
|
||||
@ -0,0 +1,110 @@
|
||||
From 71422bfe269e34b69d78f9fb02f30426f2fdef48 Mon Sep 17 00:00:00 2001
|
||||
From: rpm-build <rpm-build>
|
||||
Date: Wed, 13 Dec 2023 16:59:46 +0100
|
||||
Subject: [PATCH] bgpd: Treat EOR as withdrawn to avoid unwanted handling of
|
||||
malformed attrs
|
||||
|
||||
Treat-as-withdraw, otherwise if we just ignore it, we will pass it to be
|
||||
processed as a normal UPDATE without mandatory attributes, that could lead
|
||||
to harmful behavior. In this case, a crash for route-maps with the configuration
|
||||
such as:
|
||||
|
||||
```
|
||||
router bgp 65001
|
||||
no bgp ebgp-requires-policy
|
||||
neighbor 127.0.0.1 remote-as external
|
||||
neighbor 127.0.0.1 passive
|
||||
neighbor 127.0.0.1 ebgp-multihop
|
||||
neighbor 127.0.0.1 disable-connected-check
|
||||
neighbor 127.0.0.1 update-source 127.0.0.2
|
||||
neighbor 127.0.0.1 timers 3 90
|
||||
neighbor 127.0.0.1 timers connect 1
|
||||
!
|
||||
address-family ipv4 unicast
|
||||
neighbor 127.0.0.1 addpath-tx-all-paths
|
||||
neighbor 127.0.0.1 default-originate
|
||||
neighbor 127.0.0.1 route-map RM_IN in
|
||||
exit-address-family
|
||||
exit
|
||||
!
|
||||
route-map RM_IN permit 10
|
||||
set as-path prepend 200
|
||||
exit
|
||||
```
|
||||
|
||||
Send a malformed optional transitive attribute:
|
||||
|
||||
```
|
||||
import socket
|
||||
import time
|
||||
|
||||
OPEN = (b"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
|
||||
b"\xff\xff\x00\x62\x01\x04\xfd\xea\x00\x5a\x0a\x00\x00\x01\x45\x02"
|
||||
b"\x06\x01\x04\x00\x01\x00\x01\x02\x02\x02\x00\x02\x02\x46\x00\x02"
|
||||
b"\x06\x41\x04\x00\x00\xfd\xea\x02\x02\x06\x00\x02\x06\x45\x04\x00"
|
||||
b"\x01\x01\x03\x02\x0e\x49\x0c\x0a\x64\x6f\x6e\x61\x74\x61\x73\x2d"
|
||||
b"\x70\x63\x00\x02\x04\x40\x02\x00\x78\x02\x09\x47\x07\x00\x01\x01"
|
||||
b"\x80\x00\x00\x00")
|
||||
|
||||
KEEPALIVE = (b"\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
|
||||
b"\xff\xff\xff\xff\xff\xff\x00\x13\x04")
|
||||
|
||||
UPDATE = bytearray.fromhex("ffffffffffffffffffffffffffffffff002b0200000003c0ff00010100eb00ac100b0b001ad908ac100b0b")
|
||||
|
||||
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
||||
s.connect(('127.0.0.2', 179))
|
||||
s.send(OPEN)
|
||||
data = s.recv(1024)
|
||||
s.send(KEEPALIVE)
|
||||
data = s.recv(1024)
|
||||
s.send(UPDATE)
|
||||
data = s.recv(1024)
|
||||
time.sleep(100)
|
||||
s.close()
|
||||
```
|
||||
|
||||
Reported-by: Iggy Frankovic <iggyfran@amazon.com>
|
||||
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
|
||||
|
||||
(cherry picked from commit 6814f2e0138a6ea5e1f83bdd9085d9a77999900b)
|
||||
---
|
||||
bgpd/bgp_attr.c | 15 ++++++++++++---
|
||||
1 file changed, 12 insertions(+), 3 deletions(-)
|
||||
|
||||
diff --git a/bgpd/bgp_attr.c b/bgpd/bgp_attr.c
|
||||
index a121911..12a6953 100644
|
||||
--- a/bgpd/bgp_attr.c
|
||||
+++ b/bgpd/bgp_attr.c
|
||||
@@ -3079,9 +3079,12 @@ static int bgp_attr_check(struct peer *peer, struct attr *attr)
|
||||
uint8_t type = 0;
|
||||
|
||||
/* BGP Graceful-Restart End-of-RIB for IPv4 unicast is signaled as an
|
||||
- * empty UPDATE. */
|
||||
+ * empty UPDATE. Treat-as-withdraw, otherwise if we just ignore it,
|
||||
+ * we will pass it to be processed as a normal UPDATE without mandatory
|
||||
+ * attributes, that could lead to harmful behavior.
|
||||
+ */
|
||||
if (CHECK_FLAG(peer->cap, PEER_CAP_RESTART_RCV) && !attr->flag)
|
||||
- return BGP_ATTR_PARSE_PROCEED;
|
||||
+ return BGP_ATTR_PARSE_WITHDRAW;
|
||||
|
||||
/* "An UPDATE message that contains the MP_UNREACH_NLRI is not required
|
||||
to carry any other path attributes.", though if MP_REACH_NLRI or NLRI
|
||||
@@ -3507,7 +3510,13 @@ done:
|
||||
aspath_unintern(&as4_path);
|
||||
|
||||
transit = bgp_attr_get_transit(attr);
|
||||
- if (ret != BGP_ATTR_PARSE_ERROR) {
|
||||
+ /* If we received an UPDATE with mandatory attributes, then
|
||||
+ * the unrecognized transitive optional attribute of that
|
||||
+ * path MUST be passed. Otherwise, it's an error, and from
|
||||
+ * security perspective it might be very harmful if we continue
|
||||
+ * here with the unrecognized attributes.
|
||||
+ */
|
||||
+ if (ret == BGP_ATTR_PARSE_PROCEED) {
|
||||
/* Finally intern unknown attribute. */
|
||||
if (transit)
|
||||
bgp_attr_set_transit(attr, transit_intern(transit));
|
||||
--
|
||||
2.43.0
|
||||
|
||||
@ -0,0 +1,95 @@
|
||||
From 7fe95b24333cceb6cd04595694cd502fcd3666f6 Mon Sep 17 00:00:00 2001
|
||||
From: rpm-build <rpm-build>
|
||||
Date: Wed, 13 Dec 2023 18:25:48 +0100
|
||||
Subject: [PATCH] bgpd: Ignore handling NLRIs if we received MP_UNREACH_NLRI
|
||||
|
||||
If we receive MP_UNREACH_NLRI, we should stop handling remaining NLRIs if
|
||||
no mandatory path attributes received.
|
||||
|
||||
In other words, if MP_UNREACH_NLRI received, the remaining NLRIs should be handled
|
||||
as a new data, but without mandatory attributes, it's a malformed packet.
|
||||
|
||||
In normal case, this MUST not happen at all, but to avoid crashing bgpd, we MUST
|
||||
handle that.
|
||||
|
||||
Reported-by: Iggy Frankovic <iggyfran@amazon.com>
|
||||
Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>
|
||||
Signed-off-by: Christian Breunig <christian@breunig.cc>
|
||||
|
||||
(cherry picked from commit c37119df45bbf4ef713bc10475af2ee06e12f3bf)
|
||||
---
|
||||
bgpd/bgp_attr.c | 19 ++++++++++---------
|
||||
bgpd/bgp_attr.h | 1 +
|
||||
bgpd/bgp_packet.c | 7 ++++++-
|
||||
3 files changed, 17 insertions(+), 10 deletions(-)
|
||||
|
||||
diff --git a/bgpd/bgp_attr.c b/bgpd/bgp_attr.c
|
||||
index 12a6953..8b02f2c 100644
|
||||
--- a/bgpd/bgp_attr.c
|
||||
+++ b/bgpd/bgp_attr.c
|
||||
@@ -3086,15 +3086,6 @@ static int bgp_attr_check(struct peer *peer, struct attr *attr)
|
||||
if (CHECK_FLAG(peer->cap, PEER_CAP_RESTART_RCV) && !attr->flag)
|
||||
return BGP_ATTR_PARSE_WITHDRAW;
|
||||
|
||||
- /* "An UPDATE message that contains the MP_UNREACH_NLRI is not required
|
||||
- to carry any other path attributes.", though if MP_REACH_NLRI or NLRI
|
||||
- are present, it should. Check for any other attribute being present
|
||||
- instead.
|
||||
- */
|
||||
- if ((!CHECK_FLAG(attr->flag, ATTR_FLAG_BIT(BGP_ATTR_MP_REACH_NLRI)) &&
|
||||
- CHECK_FLAG(attr->flag, ATTR_FLAG_BIT(BGP_ATTR_MP_UNREACH_NLRI))))
|
||||
- return BGP_ATTR_PARSE_PROCEED;
|
||||
-
|
||||
if (!CHECK_FLAG(attr->flag, ATTR_FLAG_BIT(BGP_ATTR_ORIGIN)))
|
||||
type = BGP_ATTR_ORIGIN;
|
||||
|
||||
@@ -3113,6 +3104,16 @@ static int bgp_attr_check(struct peer *peer, struct attr *attr)
|
||||
&& !CHECK_FLAG(attr->flag, ATTR_FLAG_BIT(BGP_ATTR_LOCAL_PREF)))
|
||||
type = BGP_ATTR_LOCAL_PREF;
|
||||
|
||||
+ /* An UPDATE message that contains the MP_UNREACH_NLRI is not required
|
||||
+ * to carry any other path attributes. Though if MP_REACH_NLRI or NLRI
|
||||
+ * are present, it should. Check for any other attribute being present
|
||||
+ * instead.
|
||||
+ */
|
||||
+ if (!CHECK_FLAG(attr->flag, ATTR_FLAG_BIT(BGP_ATTR_MP_REACH_NLRI)) &&
|
||||
+ CHECK_FLAG(attr->flag, ATTR_FLAG_BIT(BGP_ATTR_MP_UNREACH_NLRI)))
|
||||
+ return type ? BGP_ATTR_PARSE_MISSING_MANDATORY
|
||||
+ : BGP_ATTR_PARSE_PROCEED;
|
||||
+
|
||||
/* If any of the well-known mandatory attributes are not present
|
||||
* in an UPDATE message, then "treat-as-withdraw" MUST be used.
|
||||
*/
|
||||
diff --git a/bgpd/bgp_attr.h b/bgpd/bgp_attr.h
|
||||
index 06f350b..b9dfec9 100644
|
||||
--- a/bgpd/bgp_attr.h
|
||||
+++ b/bgpd/bgp_attr.h
|
||||
@@ -379,6 +379,7 @@ enum bgp_attr_parse_ret {
|
||||
*/
|
||||
BGP_ATTR_PARSE_ERROR_NOTIFYPLS = -3,
|
||||
BGP_ATTR_PARSE_EOR = -4,
|
||||
+ BGP_ATTR_PARSE_MISSING_MANDATORY = -5,
|
||||
};
|
||||
|
||||
struct bpacket_attr_vec_arr;
|
||||
diff --git a/bgpd/bgp_packet.c b/bgpd/bgp_packet.c
|
||||
index a5f065a..cdf0734 100644
|
||||
--- a/bgpd/bgp_packet.c
|
||||
+++ b/bgpd/bgp_packet.c
|
||||
@@ -1873,7 +1873,12 @@ static int bgp_update_receive(struct peer *peer, bgp_size_t size)
|
||||
/* Network Layer Reachability Information. */
|
||||
update_len = end - stream_pnt(s);
|
||||
|
||||
- if (update_len) {
|
||||
+ /* If we received MP_UNREACH_NLRI attribute, but also NLRIs, then
|
||||
+ * NLRIs should be handled as a new data. Though, if we received
|
||||
+ * NLRIs without mandatory attributes, they should be ignored.
|
||||
+ */
|
||||
+ if (update_len && attribute_len &&
|
||||
+ attr_parse_ret != BGP_ATTR_PARSE_MISSING_MANDATORY) {
|
||||
/* Set NLRI portion to structure. */
|
||||
nlris[NLRI_UPDATE].afi = AFI_IP;
|
||||
nlris[NLRI_UPDATE].safi = SAFI_UNICAST;
|
||||
--
|
||||
2.43.0
|
||||
|
||||
@ -0,0 +1,34 @@
|
||||
From 0b999c886e241c52bd1f7ef0066700e4b618ebb3 Mon Sep 17 00:00:00 2001
|
||||
From: Donald Sharp <sharpd@nvidia.com>
|
||||
Date: Thu, 23 Feb 2023 13:29:32 -0500
|
||||
Subject: [PATCH] bgpd: Flowspec overflow issue
|
||||
|
||||
According to the flowspec RFC 8955 a flowspec nlri is <length, <nlri data>>
|
||||
Specifying 0 as a length makes BGP get all warm on the inside. Which
|
||||
in this case is not a good thing at all. Prevent warmth, stay cold
|
||||
on the inside.
|
||||
|
||||
Reported-by: Iggy Frankovic <iggyfran@amazon.com>
|
||||
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
|
||||
---
|
||||
bgpd/bgp_flowspec.c | 7 +++++++
|
||||
1 file changed, 7 insertions(+)
|
||||
|
||||
diff --git a/bgpd/bgp_flowspec.c b/bgpd/bgp_flowspec.c
|
||||
index 8d5ca5e77779..f9debe43cd45 100644
|
||||
--- a/bgpd/bgp_flowspec.c
|
||||
+++ b/bgpd/bgp_flowspec.c
|
||||
@@ -127,6 +127,13 @@ int bgp_nlri_parse_flowspec(struct peer *peer, struct attr *attr,
|
||||
psize);
|
||||
return BGP_NLRI_PARSE_ERROR_PACKET_OVERFLOW;
|
||||
}
|
||||
+
|
||||
+ if (psize == 0) {
|
||||
+ flog_err(EC_BGP_FLOWSPEC_PACKET,
|
||||
+ "Flowspec NLRI length 0 which makes no sense");
|
||||
+ return BGP_NLRI_PARSE_ERROR_PACKET_OVERFLOW;
|
||||
+ }
|
||||
+
|
||||
if (bgp_fs_nlri_validate(pnt, psize, afi) < 0) {
|
||||
flog_err(
|
||||
EC_BGP_FLOWSPEC_PACKET,
|
||||
@ -0,0 +1,54 @@
|
||||
From 7404a914b0cafe046703c8381903a80d3def8f8b Mon Sep 17 00:00:00 2001
|
||||
From: Donald Sharp <sharpd@nvidia.com>
|
||||
Date: Fri, 3 Mar 2023 21:58:33 -0500
|
||||
Subject: [PATCH] bgpd: Fix use beyond end of stream of labeled unicast parsing
|
||||
|
||||
Fixes a couple crashes associated with attempting to read
|
||||
beyond the end of the stream.
|
||||
|
||||
Reported-by: Iggy Frankovic <iggyfran@amazon.com>
|
||||
Signed-off-by: Donald Sharp <sharpd@nvidia.com>
|
||||
---
|
||||
bgpd/bgp_label.c | 15 +++++++++++++++
|
||||
1 file changed, 15 insertions(+)
|
||||
|
||||
diff --git a/bgpd/bgp_label.c b/bgpd/bgp_label.c
|
||||
index 0cad119af101..c4a5277553ba 100644
|
||||
--- a/bgpd/bgp_label.c
|
||||
+++ b/bgpd/bgp_label.c
|
||||
@@ -297,6 +297,9 @@ static int bgp_nlri_get_labels(struct peer *peer, uint8_t *pnt, uint8_t plen,
|
||||
uint8_t llen = 0;
|
||||
uint8_t label_depth = 0;
|
||||
|
||||
+ if (plen < BGP_LABEL_BYTES)
|
||||
+ return 0;
|
||||
+
|
||||
for (; data < lim; data += BGP_LABEL_BYTES) {
|
||||
memcpy(label, data, BGP_LABEL_BYTES);
|
||||
llen += BGP_LABEL_BYTES;
|
||||
@@ -359,6 +362,9 @@ int bgp_nlri_parse_label(struct peer *peer, struct attr *attr,
|
||||
memcpy(&addpath_id, pnt, BGP_ADDPATH_ID_LEN);
|
||||
addpath_id = ntohl(addpath_id);
|
||||
pnt += BGP_ADDPATH_ID_LEN;
|
||||
+
|
||||
+ if (pnt >= lim)
|
||||
+ return BGP_NLRI_PARSE_ERROR_PACKET_OVERFLOW;
|
||||
}
|
||||
|
||||
/* Fetch prefix length. */
|
||||
@@ -377,6 +383,15 @@ int bgp_nlri_parse_label(struct peer *peer, struct attr *attr,
|
||||
|
||||
/* Fill in the labels */
|
||||
llen = bgp_nlri_get_labels(peer, pnt, psize, &label);
|
||||
+ if (llen == 0) {
|
||||
+ flog_err(
|
||||
+ EC_BGP_UPDATE_RCV,
|
||||
+ "%s [Error] Update packet error (wrong label length 0)",
|
||||
+ peer->host);
|
||||
+ bgp_notify_send(peer, BGP_NOTIFY_UPDATE_ERR,
|
||||
+ BGP_NOTIFY_UPDATE_INVAL_NETWORK);
|
||||
+ return BGP_NLRI_PARSE_ERROR_LABEL_LENGTH;
|
||||
+ }
|
||||
p.prefixlen = prefixlen - BSIZE(llen);
|
||||
|
||||
/* There needs to be at least one label */
|
||||
@ -0,0 +1,16 @@
|
||||
#!/bin/sh
|
||||
#this script is used to remove babled and ldpd from the tar sources
|
||||
#Usage: sh remove-babeld-ldpd.sh <VERSION>
|
||||
#Example: sh remove-babeld-ldpd.sh 7.3.1 - this is for frr-7.3.1.tar.gz file
|
||||
|
||||
VERSION=$1
|
||||
TAR=frr-${VERSION}.tar.gz
|
||||
DIR=frr-${VERSION}
|
||||
|
||||
echo ${VERSION}
|
||||
echo ${TAR}
|
||||
echo ${DIR}
|
||||
|
||||
tar -xzf ${TAR}
|
||||
rm -rf ${DIR}/babeld ${DIR}/ldpd
|
||||
tar -czf ${TAR} ${DIR}
|
||||
Loading…
Reference in new issue