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Merge commit 'bcb25084d31fdb90fcf1666f10e73fe0f863afc0' into sark-bgp-rebased

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This commit is contained in:
Maria Matejka 2022-02-04 15:24:28 +01:00
commit 14bb6fd29a
4 changed files with 58 additions and 19 deletions
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10
.gitlab-ci.yml
View File

@ -557,6 +557,11 @@ test-ospf-custom:
variables:
TEST_NAME: cf-ospf-custom
test-ospf-area:
<<: *test-base
variables:
TEST_NAME: cf-ospf-area
test-ospf-vrf:
<<: *test-base
variables:
@ -611,3 +616,8 @@ test-babel-auth:
<<: *test-base
variables:
TEST_NAME: cf-babel-auth
test-rip-base:
<<: *test-base
variables:
TEST_NAME: cf-rip-base

2
conf/cf-lex.l
View File

@ -255,7 +255,7 @@ WHITE [ \t]
return IP4;
}
{XIGIT}{2}(:{XIGIT}{2}|{XIGIT}{2}){15,} {
{XIGIT}{2}((:{XIGIT}{2}){15,}|({XIGIT}{2}){15,}) {
char *s = yytext;
size_t len = 0, i;
struct bytestring *bytes;

20
filter/test.conf
View File

@ -335,6 +335,26 @@ ip p;
p = 1234:5678::;
bt_assert(!p.is_v4);
bt_assert(p.mask(24) = 1234:5600::);
p = 1:2:3:4:5:6:7:8;
bt_assert(!p.is_v4);
bt_assert(format(p) = "1:2:3:4:5:6:7:8");
bt_assert(p.mask(64) = 1:2:3:4::);
p = 10:20:30:40:50:60:70:80;
bt_assert(!p.is_v4);
bt_assert(format(p) = "10:20:30:40:50:60:70:80");
bt_assert(p.mask(64) = 10:20:30:40::);
p = 1090:20a0:30b0:40c0:50d0:60e0:70f0:8000;
bt_assert(!p.is_v4);
bt_assert(format(p) = "1090:20a0:30b0:40c0:50d0:60e0:70f0:8000");
bt_assert(p.mask(64) = 1090:20a0:30b0:40c0::);
p = ::fffe:6:c0c:936d:88c7:35d3;
bt_assert(!p.is_v4);
bt_assert(format(p) = "::fffe:6:c0c:936d:88c7:35d3");
bt_assert(p.mask(64) = 0:0:fffe:6::);
}
bt_test_suite(t_ip, "Testing ip address");

45
sysdep/linux/netlink.c
View File

@ -681,7 +681,7 @@ nl_add_multipath(struct nlmsghdr *h, uint bufsize, struct nexthop *nh, int af, e
}
static struct nexthop *
nl_parse_multipath(struct nl_parse_state *s, struct krt_proto *p, struct rtattr *ra, int af)
nl_parse_multipath(struct nl_parse_state *s, struct krt_proto *p, const net_addr *n, struct rtattr *ra, int af, int krt_src)
{
struct rtattr *a[BIRD_RTA_MAX];
struct rtnexthop *nh = RTA_DATA(ra);
@ -695,9 +695,9 @@ nl_parse_multipath(struct nl_parse_state *s, struct krt_proto *p, struct rtattr
{
/* Use RTNH_OK(nh,len) ?? */
if ((len < sizeof(*nh)) || (len < nh->rtnh_len))
return NULL;
goto err;
if (nh->rtnh_flags & RTNH_F_DEAD)
if ((nh->rtnh_flags & RTNH_F_DEAD) && (krt_src != KRT_SRC_BIRD))
goto next;
*last = rv = lp_allocz(s->pool, NEXTHOP_MAX_SIZE);
@ -706,7 +706,10 @@ nl_parse_multipath(struct nl_parse_state *s, struct krt_proto *p, struct rtattr
rv->weight = nh->rtnh_hops;
rv->iface = if_find_by_index(nh->rtnh_ifindex);
if (!rv->iface)
return NULL;
{
log(L_ERR "KRT: Received route %N with unknown ifindex %u", n, nh->rtnh_ifindex);
return NULL;
}
/* Nonexistent RTNH_PAYLOAD ?? */
nl_attr_len = nh->rtnh_len - RTNH_LENGTH(0);
@ -714,18 +717,18 @@ nl_parse_multipath(struct nl_parse_state *s, struct krt_proto *p, struct rtattr
{
case AF_INET:
if (!nl_parse_attrs(RTNH_DATA(nh), nexthop_attr_want4, a, sizeof(a)))
return NULL;
goto err;
break;
case AF_INET6:
if (!nl_parse_attrs(RTNH_DATA(nh), nexthop_attr_want6, a, sizeof(a)))
return NULL;
goto err;
break;
#ifdef HAVE_MPLS_KERNEL
case AF_MPLS:
if (!nl_parse_attrs(RTNH_DATA(nh), nexthop_attr_want_mpls, a, sizeof(a)))
return NULL;
goto err;
if (a[RTA_NEWDST])
rv->labels = rta_get_mpls(a[RTA_NEWDST], rv->label);
@ -734,7 +737,7 @@ nl_parse_multipath(struct nl_parse_state *s, struct krt_proto *p, struct rtattr
#endif
default:
return NULL;
goto err;
}
if (a[RTA_GATEWAY])
@ -757,14 +760,19 @@ nl_parse_multipath(struct nl_parse_state *s, struct krt_proto *p, struct rtattr
nbr = neigh_find(&p->p, rv->gw, rv->iface,
(rv->flags & RNF_ONLINK) ? NEF_ONLINK : 0);
if (!nbr || (nbr->scope == SCOPE_HOST))
return NULL;
{
log(L_ERR "KRT: Received route %N with strange next-hop %I", n, rv->gw);
return NULL;
}
}
#ifdef HAVE_MPLS_KERNEL
if (a[RTA_ENCAP] && a[RTA_ENCAP_TYPE])
{
if (rta_get_u16(a[RTA_ENCAP_TYPE]) != LWTUNNEL_ENCAP_MPLS) {
log(L_WARN "KRT: Unknown encapsulation method %d in multipath", rta_get_u16(a[RTA_ENCAP_TYPE]));
if (rta_get_u16(a[RTA_ENCAP_TYPE]) != LWTUNNEL_ENCAP_MPLS)
{
log(L_WARN "KRT: Received route %N with unknown encapsulation method %d",
n, rta_get_u16(a[RTA_ENCAP_TYPE]));
return NULL;
}
@ -785,6 +793,10 @@ nl_parse_multipath(struct nl_parse_state *s, struct krt_proto *p, struct rtattr
first = nexthop_sort(first);
return first;
err:
log(L_ERR "KRT: Received strange multipath route %N", n);
return NULL;
}
static void
@ -1682,19 +1694,16 @@ nl_parse_route(struct nl_parse_state *s, struct nlmsghdr *h)
if (a[RTA_MULTIPATH])
{
struct nexthop *nh = nl_parse_multipath(s, p, a[RTA_MULTIPATH], i->rtm_family);
struct nexthop *nh = nl_parse_multipath(s, p, net, a[RTA_MULTIPATH], i->rtm_family, krt_src);
if (!nh)
{
log(L_ERR "KRT: Received strange multipath route %N", net);
return;
}
SKIP("strange RTA_MULTIPATH\n");
nexthop_link(ra, nh);
break;
}
if (i->rtm_flags & RTNH_F_DEAD)
return;
if ((i->rtm_flags & RTNH_F_DEAD) && (krt_src != KRT_SRC_BIRD))
SKIP("ignore RTNH_F_DEAD\n");
ra->nh.iface = if_find_by_index(oif);
if (!ra->nh.iface)