diff options
| -rw-r--r-- | include/net/netns/ipv4.h | 7 | ||||
| -rw-r--r-- | net/ipv4/af_inet.c | 8 | ||||
| -rw-r--r-- | net/ipv4/ping.c | 6 | ||||
| -rw-r--r-- | net/ipv4/sysctl_net_ipv4.c | 13 |
4 files changed, 20 insertions, 14 deletions
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h index 3d95cd475316..b2704fd0ec80 100644 --- a/include/net/netns/ipv4.h +++ b/include/net/netns/ipv4.h @@ -20,6 +20,11 @@ struct local_ports { int range[2]; }; +struct ping_group_range { + seqlock_t lock; + kgid_t range[2]; +}; + struct netns_ipv4 { #ifdef CONFIG_SYSCTL struct ctl_table_header *forw_hdr; @@ -72,7 +77,7 @@ struct netns_ipv4 { int sysctl_ip_no_pmtu_disc; int sysctl_ip_fwd_use_pmtu; - kgid_t sysctl_ping_group_range[2]; + struct ping_group_range ping_group_range; atomic_t dev_addr_genid; diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index cccc8e487c7e..6d6dd345bc4d 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -1658,6 +1658,14 @@ static __net_init int inet_init_net(struct net *net) seqlock_init(&net->ipv4.ip_local_ports.lock); net->ipv4.ip_local_ports.range[0] = 32768; net->ipv4.ip_local_ports.range[1] = 61000; + + seqlock_init(&net->ipv4.ping_group_range.lock); + /* + * Sane defaults - nobody may create ping sockets. + * Boot scripts should set this to distro-specific group. + */ + net->ipv4.ping_group_range.range[0] = make_kgid(&init_user_ns, 1); + net->ipv4.ping_group_range.range[1] = make_kgid(&init_user_ns, 0); return 0; } diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c index 347bdde9a585..044a0ddf6a79 100644 --- a/net/ipv4/ping.c +++ b/net/ipv4/ping.c @@ -236,15 +236,15 @@ exit: static void inet_get_ping_group_range_net(struct net *net, kgid_t *low, kgid_t *high) { - kgid_t *data = net->ipv4.sysctl_ping_group_range; + kgid_t *data = net->ipv4.ping_group_range.range; unsigned int seq; do { - seq = read_seqbegin(&net->ipv4.ip_local_ports.lock); + seq = read_seqbegin(&net->ipv4.ping_group_range.lock); *low = data[0]; *high = data[1]; - } while (read_seqretry(&net->ipv4.ip_local_ports.lock, seq)); + } while (read_seqretry(&net->ipv4.ping_group_range.lock, seq)); } diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index a116c41b05dd..5cde8f263d40 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -87,7 +87,7 @@ static void inet_get_ping_group_range_table(struct ctl_table *table, kgid_t *low { kgid_t *data = table->data; struct net *net = - container_of(table->data, struct net, ipv4.sysctl_ping_group_range); + container_of(table->data, struct net, ipv4.ping_group_range.range); unsigned int seq; do { seq = read_seqbegin(&net->ipv4.ip_local_ports.lock); @@ -102,7 +102,7 @@ static void set_ping_group_range(struct ctl_table *table, kgid_t low, kgid_t hig { kgid_t *data = table->data; struct net *net = - container_of(table->data, struct net, ipv4.sysctl_ping_group_range); + container_of(table->data, struct net, ipv4.ping_group_range.range); write_seqlock(&net->ipv4.ip_local_ports.lock); data[0] = low; data[1] = high; @@ -805,7 +805,7 @@ static struct ctl_table ipv4_net_table[] = { }, { .procname = "ping_group_range", - .data = &init_net.ipv4.sysctl_ping_group_range, + .data = &init_net.ipv4.ping_group_range.range, .maxlen = sizeof(gid_t)*2, .mode = 0644, .proc_handler = ipv4_ping_group_range, @@ -858,13 +858,6 @@ static __net_init int ipv4_sysctl_init_net(struct net *net) table[i].data += (void *)net - (void *)&init_net; } - /* - * Sane defaults - nobody may create ping sockets. - * Boot scripts should set this to distro-specific group. - */ - net->ipv4.sysctl_ping_group_range[0] = make_kgid(&init_user_ns, 1); - net->ipv4.sysctl_ping_group_range[1] = make_kgid(&init_user_ns, 0); - net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table); if (net->ipv4.ipv4_hdr == NULL) goto err_reg; |