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authorEric Dumazet <edumazet@google.com>2023-08-16 11:15:40 +0300
committerDavid S. Miller <davem@davemloft.net>2023-08-16 13:09:17 +0300
commit307b4ac6dc18436076cdd314aa3e556be077bf2d (patch)
treec750fdee64bbf6c74db275a134986b0b02f718b9 /net/ipv4
parentb09bde5c3554d58cb711dac55a10ecc56d436966 (diff)
downloadlinux-307b4ac6dc18436076cdd314aa3e556be077bf2d.tar.xz
inet: move inet->mc_all to inet->inet_frags
IP_MULTICAST_ALL socket option can now be set/read without locking the socket. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/af_inet.c2
-rw-r--r--net/ipv4/igmp.c2
-rw-r--r--net/ipv4/inet_diag.c2
-rw-r--r--net/ipv4/ip_sockglue.c22
4 files changed, 14 insertions, 14 deletions
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index e847822df9b6..47c9cdd7687f 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -358,7 +358,7 @@ lookup_protocol:
inet->uc_ttl = -1;
inet_set_bit(MC_LOOP, sk);
inet->mc_ttl = 1;
- inet->mc_all = 1;
+ inet_set_bit(MC_ALL, sk);
inet->mc_index = 0;
inet->mc_list = NULL;
inet->rcv_tos = 0;
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 48ff5f13e797..0c9e768e5628 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -2658,7 +2658,7 @@ int ip_mc_sf_allow(const struct sock *sk, __be32 loc_addr, __be32 rmt_addr,
(sdif && pmc->multi.imr_ifindex == sdif)))
break;
}
- ret = inet->mc_all;
+ ret = inet_test_bit(MC_ALL, sk);
if (!pmc)
goto unlock;
psl = rcu_dereference(pmc->sflist);
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index cc797261893b..e009dab80c35 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -188,7 +188,7 @@ int inet_diag_msg_attrs_fill(struct sock *sk, struct sk_buff *skb,
inet_sockopt.hdrincl = inet_test_bit(HDRINCL, sk);
inet_sockopt.mc_loop = inet_test_bit(MC_LOOP, sk);
inet_sockopt.transparent = inet->transparent;
- inet_sockopt.mc_all = inet->mc_all;
+ inet_sockopt.mc_all = inet_test_bit(MC_ALL, sk);
inet_sockopt.nodefrag = inet->nodefrag;
inet_sockopt.bind_address_no_port = inet->bind_address_no_port;
inet_sockopt.recverr_rfc4884 = inet_test_bit(RECVERR_RFC4884, sk);
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index be569032b612..2f27c30a4ecc 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -998,6 +998,14 @@ int do_ip_setsockopt(struct sock *sk, int level, int optname,
return -EINVAL;
inet_assign_bit(MC_LOOP, sk, val);
return 0;
+ case IP_MULTICAST_ALL:
+ if (optlen < 1)
+ return -EINVAL;
+ if (val != 0 && val != 1)
+ return -EINVAL;
+ inet_assign_bit(MC_ALL, sk, val);
+ return 0;
+
}
err = 0;
@@ -1303,14 +1311,6 @@ int do_ip_setsockopt(struct sock *sk, int level, int optname,
else
err = ip_set_mcast_msfilter(sk, optval, optlen);
break;
- case IP_MULTICAST_ALL:
- if (optlen < 1)
- goto e_inval;
- if (val != 0 && val != 1)
- goto e_inval;
- inet->mc_all = val;
- break;
-
case IP_IPSEC_POLICY:
case IP_XFRM_POLICY:
err = -EPERM;
@@ -1582,6 +1582,9 @@ int do_ip_getsockopt(struct sock *sk, int level, int optname,
case IP_MULTICAST_LOOP:
val = inet_test_bit(MC_LOOP, sk);
goto copyval;
+ case IP_MULTICAST_ALL:
+ val = inet_test_bit(MC_ALL, sk);
+ goto copyval;
}
if (needs_rtnl)
@@ -1694,9 +1697,6 @@ int do_ip_getsockopt(struct sock *sk, int level, int optname,
else
err = ip_get_mcast_msfilter(sk, optval, optlen, len);
goto out;
- case IP_MULTICAST_ALL:
- val = inet->mc_all;
- break;
case IP_PKTOPTIONS:
{
struct msghdr msg;