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Merge branch 'vrf-fix-address-binding-with-icmp-socket'

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Nicolas Dichtel says:

====================
vrf: fix address binding with icmp socket

The first patch fixes the issue.
The second patch adds related tests in selftests.
====================

Link: https://lore.kernel.org/r/20220504090739.21821-1-nicolas.dichtel@6wind.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2022-05-05 18:12:47 -07:00
commit 690447a22c
2 changed files with 23 additions and 1 deletions
net/ipv4
ping.c
tools/testing/selftests/net
fcnal-test.sh

12
net/ipv4/ping.c
View File

@ -305,6 +305,7 @@ static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
struct net *net = sock_net(sk);
if (sk->sk_family == AF_INET) {
struct sockaddr_in *addr = (struct sockaddr_in *) uaddr;
u32 tb_id = RT_TABLE_LOCAL;
int chk_addr_ret;
if (addr_len < sizeof(*addr))
@ -318,7 +319,8 @@ static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
pr_debug("ping_check_bind_addr(sk=%p,addr=%pI4,port=%d)\n",
sk, &addr->sin_addr.s_addr, ntohs(addr->sin_port));
chk_addr_ret = inet_addr_type(net, addr->sin_addr.s_addr);
tb_id = l3mdev_fib_table_by_index(net, sk->sk_bound_dev_if) ? : tb_id;
chk_addr_ret = inet_addr_type_table(net, addr->sin_addr.s_addr, tb_id);
if (!inet_addr_valid_or_nonlocal(net, inet_sk(sk),
addr->sin_addr.s_addr,
@ -355,6 +357,14 @@ static int ping_check_bind_addr(struct sock *sk, struct inet_sock *isk,
return -ENODEV;
}
}
if (!dev && sk->sk_bound_dev_if) {
dev = dev_get_by_index_rcu(net, sk->sk_bound_dev_if);
if (!dev) {
rcu_read_unlock();
return -ENODEV;
}
}
has_addr = pingv6_ops.ipv6_chk_addr(net, &addr->sin6_addr, dev,
scoped);
rcu_read_unlock();

12
tools/testing/selftests/net/fcnal-test.sh
View File

@ -810,10 +810,16 @@ ipv4_ping()
setup
set_sysctl net.ipv4.raw_l3mdev_accept=1 2>/dev/null
ipv4_ping_novrf
setup
set_sysctl net.ipv4.ping_group_range='0 2147483647' 2>/dev/null
ipv4_ping_novrf
log_subsection "With VRF"
setup "yes"
ipv4_ping_vrf
setup "yes"
set_sysctl net.ipv4.ping_group_range='0 2147483647' 2>/dev/null
ipv4_ping_vrf
}
################################################################################
@ -2348,10 +2354,16 @@ ipv6_ping()
log_subsection "No VRF"
setup
ipv6_ping_novrf
setup
set_sysctl net.ipv4.ping_group_range='0 2147483647' 2>/dev/null
ipv6_ping_novrf
log_subsection "With VRF"
setup "yes"
ipv6_ping_vrf
setup "yes"
set_sysctl net.ipv4.ping_group_range='0 2147483647' 2>/dev/null
ipv6_ping_vrf
}
################################################################################