diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-06-30 23:34:49 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-06-30 23:34:49 -0400 |
| commit | b223f4e215b32849b841e750e83a915b670070f5 (patch) | |
| tree | 75340f6305028de331a17255018869822b3886d2 /net/packet/af_packet.c | |
| parent | f4e6d844bdc142322905d137a9e44e07eee43c5c (diff) | |
| parent | 0cac643c102c0632dc2cc81e2490b0fec1cac0af (diff) | |
Merge branch 'd_real' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs into work.misc
Diffstat (limited to 'net/packet/af_packet.c')
| -rw-r--r-- | net/packet/af_packet.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 4040eb92d9c9..9bff6ef16fa7 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -93,6 +93,7 @@ #include <net/inet_common.h> #endif #include <linux/bpf.h> +#include <net/compat.h> #include "internal.h" @@ -3940,6 +3941,27 @@ static int packet_getsockopt(struct socket *sock, int level, int optname, } +#ifdef CONFIG_COMPAT +static int compat_packet_setsockopt(struct socket *sock, int level, int optname, + char __user *optval, unsigned int optlen) +{ + struct packet_sock *po = pkt_sk(sock->sk); + + if (level != SOL_PACKET) + return -ENOPROTOOPT; + + if (optname == PACKET_FANOUT_DATA && + po->fanout && po->fanout->type == PACKET_FANOUT_CBPF) { + optval = (char __user *)get_compat_bpf_fprog(optval); + if (!optval) + return -EFAULT; + optlen = sizeof(struct sock_fprog); + } + + return packet_setsockopt(sock, level, optname, optval, optlen); +} +#endif + static int packet_notifier(struct notifier_block *this, unsigned long msg, void *ptr) { @@ -4416,6 +4438,9 @@ static const struct proto_ops packet_ops = { .shutdown = sock_no_shutdown, .setsockopt = packet_setsockopt, .getsockopt = packet_getsockopt, +#ifdef CONFIG_COMPAT + .compat_setsockopt = compat_packet_setsockopt, +#endif .sendmsg = packet_sendmsg, .recvmsg = packet_recvmsg, .mmap = packet_mmap, |