aboutsummaryrefslogtreecommitdiff
path: root/net/core/sock.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/core/sock.c')
-rw-r--r--net/core/sock.c71
1 files changed, 24 insertions, 47 deletions
diff --git a/net/core/sock.c b/net/core/sock.c
index 41e91d0f7061..e21485ab285d 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -144,8 +144,6 @@
static DEFINE_MUTEX(proto_list_mutex);
static LIST_HEAD(proto_list);
-static void sock_inuse_add(struct net *net, int val);
-
/**
* sk_ns_capable - General socket capability test
* @sk: Socket to use a capability on or through
@@ -327,7 +325,10 @@ int __sk_backlog_rcv(struct sock *sk, struct sk_buff *skb)
BUG_ON(!sock_flag(sk, SOCK_MEMALLOC));
noreclaim_flag = memalloc_noreclaim_save();
- ret = sk->sk_backlog_rcv(sk, skb);
+ ret = INDIRECT_CALL_INET(sk->sk_backlog_rcv,
+ tcp_v6_do_rcv,
+ tcp_v4_do_rcv,
+ sk, skb);
memalloc_noreclaim_restore(noreclaim_flag);
return ret;
@@ -872,8 +873,7 @@ int sock_set_timestamping(struct sock *sk, int optname,
if (val & SOF_TIMESTAMPING_OPT_ID &&
!(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_ID)) {
- if (sk->sk_protocol == IPPROTO_TCP &&
- sk->sk_type == SOCK_STREAM) {
+ if (sk_is_tcp(sk)) {
if ((1 << sk->sk_state) &
(TCPF_CLOSE | TCPF_LISTEN))
return -EINVAL;
@@ -1135,6 +1135,7 @@ set_sndbuf:
case SO_PRIORITY:
if ((val >= 0 && val <= 6) ||
+ ns_capable(sock_net(sk)->user_ns, CAP_NET_RAW) ||
ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
sk->sk_priority = val;
else
@@ -1280,7 +1281,8 @@ set_sndbuf:
clear_bit(SOCK_PASSSEC, &sock->flags);
break;
case SO_MARK:
- if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) {
+ if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_RAW) &&
+ !ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN)) {
ret = -EPERM;
break;
}
@@ -1370,8 +1372,7 @@ set_sndbuf:
case SO_ZEROCOPY:
if (sk->sk_family == PF_INET || sk->sk_family == PF_INET6) {
- if (!((sk->sk_type == SOCK_STREAM &&
- sk->sk_protocol == IPPROTO_TCP) ||
+ if (!(sk_is_tcp(sk) ||
(sk->sk_type == SOCK_DGRAM &&
sk->sk_protocol == IPPROTO_UDP)))
ret = -ENOTSUPP;
@@ -1982,7 +1983,7 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority,
sock_lock_init(sk);
sk->sk_net_refcnt = kern ? 0 : 1;
if (likely(sk->sk_net_refcnt)) {
- get_net(net);
+ get_net_track(net, &sk->ns_tracker, priority);
sock_inuse_add(net, 1);
}
@@ -2038,7 +2039,7 @@ static void __sk_destruct(struct rcu_head *head)
put_pid(sk->sk_peer_pid);
if (likely(sk->sk_net_refcnt))
- put_net(sock_net(sk));
+ put_net_track(sock_net(sk), &sk->ns_tracker);
sk_prot_free(sk->sk_prot_creator, sk);
}
@@ -2125,7 +2126,7 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority)
/* SANITY */
if (likely(newsk->sk_net_refcnt)) {
- get_net(sock_net(newsk));
+ get_net_track(sock_net(newsk), &newsk->ns_tracker, priority);
sock_inuse_add(sock_net(newsk), 1);
}
sk_node_init(&newsk->sk_node);
@@ -2246,17 +2247,22 @@ void sk_setup_caps(struct sock *sk, struct dst_entry *dst)
u32 max_segs = 1;
sk_dst_set(sk, dst);
- sk->sk_route_caps = dst->dev->features | sk->sk_route_forced_caps;
+ sk->sk_route_caps = dst->dev->features;
+ if (sk_is_tcp(sk))
+ sk->sk_route_caps |= NETIF_F_GSO;
if (sk->sk_route_caps & NETIF_F_GSO)
sk->sk_route_caps |= NETIF_F_GSO_SOFTWARE;
- sk->sk_route_caps &= ~sk->sk_route_nocaps;
+ if (unlikely(sk->sk_gso_disabled))
+ sk->sk_route_caps &= ~NETIF_F_GSO_MASK;
if (sk_can_gso(sk)) {
if (dst->header_len && !xfrm_dst_offload_ok(dst)) {
sk->sk_route_caps &= ~NETIF_F_GSO_MASK;
} else {
sk->sk_route_caps |= NETIF_F_SG | NETIF_F_HW_CSUM;
- sk->sk_gso_max_size = dst->dev->gso_max_size;
- max_segs = max_t(u32, dst->dev->gso_max_segs, 1);
+ /* pairs with the WRITE_ONCE() in netif_set_gso_max_size() */
+ sk->sk_gso_max_size = READ_ONCE(dst->dev->gso_max_size);
+ /* pairs with the WRITE_ONCE() in netif_set_gso_max_segs() */
+ max_segs = max_t(u32, READ_ONCE(dst->dev->gso_max_segs), 1);
}
}
sk->sk_gso_max_segs = max_segs;
@@ -3286,7 +3292,7 @@ void lock_sock_nested(struct sock *sk, int subclass)
might_sleep();
spin_lock_bh(&sk->sk_lock.slock);
- if (sk->sk_lock.owned)
+ if (sock_owned_by_user_nocheck(sk))
__lock_sock(sk);
sk->sk_lock.owned = 1;
spin_unlock_bh(&sk->sk_lock.slock);
@@ -3317,7 +3323,7 @@ bool __lock_sock_fast(struct sock *sk) __acquires(&sk->sk_lock.slock)
might_sleep();
spin_lock_bh(&sk->sk_lock.slock);
- if (!sk->sk_lock.owned) {
+ if (!sock_owned_by_user_nocheck(sk)) {
/*
* Fast path return with bottom halves disabled and
* sock::sk_lock.slock held.
@@ -3532,19 +3538,8 @@ void sk_get_meminfo(const struct sock *sk, u32 *mem)
}
#ifdef CONFIG_PROC_FS
-#define PROTO_INUSE_NR 64 /* should be enough for the first time */
-struct prot_inuse {
- int val[PROTO_INUSE_NR];
-};
-
static DECLARE_BITMAP(proto_inuse_idx, PROTO_INUSE_NR);
-void sock_prot_inuse_add(struct net *net, struct proto *prot, int val)
-{
- __this_cpu_add(net->core.prot_inuse->val[prot->inuse_idx], val);
-}
-EXPORT_SYMBOL_GPL(sock_prot_inuse_add);
-
int sock_prot_inuse_get(struct net *net, struct proto *prot)
{
int cpu, idx = prot->inuse_idx;
@@ -3557,17 +3552,12 @@ int sock_prot_inuse_get(struct net *net, struct proto *prot)
}
EXPORT_SYMBOL_GPL(sock_prot_inuse_get);
-static void sock_inuse_add(struct net *net, int val)
-{
- this_cpu_add(*net->core.sock_inuse, val);
-}
-
int sock_inuse_get(struct net *net)
{
int cpu, res = 0;
for_each_possible_cpu(cpu)
- res += *per_cpu_ptr(net->core.sock_inuse, cpu);
+ res += per_cpu_ptr(net->core.prot_inuse, cpu)->all;
return res;
}
@@ -3579,22 +3569,12 @@ static int __net_init sock_inuse_init_net(struct net *net)
net->core.prot_inuse = alloc_percpu(struct prot_inuse);
if (net->core.prot_inuse == NULL)
return -ENOMEM;
-
- net->core.sock_inuse = alloc_percpu(int);
- if (net->core.sock_inuse == NULL)
- goto out;
-
return 0;
-
-out:
- free_percpu(net->core.prot_inuse);
- return -ENOMEM;
}
static void __net_exit sock_inuse_exit_net(struct net *net)
{
free_percpu(net->core.prot_inuse);
- free_percpu(net->core.sock_inuse);
}
static struct pernet_operations net_inuse_ops = {
@@ -3640,9 +3620,6 @@ static inline void release_proto_idx(struct proto *prot)
{
}
-static void sock_inuse_add(struct net *net, int val)
-{
-}
#endif
static void tw_prot_cleanup(struct timewait_sock_ops *twsk_prot)
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 16:31:51 +0000