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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-05-15 21:26:31 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-05-16 11:49:39 -0400 |
| commit | 1a8218e96271790a07dd7065a2ef173e0f67e328 (patch) | |
| tree | 3bf2696f434e21c92809b4812fa34b57061ce783 | |
| parent | 534ea99b063de7c30262a8e22f0ab44dd7d11a71 (diff) | |
| download | lwn-1a8218e96271790a07dd7065a2ef173e0f67e328.tar.gz lwn-1a8218e96271790a07dd7065a2ef173e0f67e328.zip | |
net: ping: dont call udp_ioctl()
udp_ioctl() really handles UDP and UDPLite protocols.
1) It can increment UDP_MIB_INERRORS in case first_packet_length() finds
a frame with bad checksum.
2) It has a dependency on sizeof(struct udphdr), not applicable to
ICMP/PING
If ping sockets need to handle SIOCINQ/SIOCOUTQ ioctl, this should be
done differently.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Vasiliy Kulikov <segoon@openwall.com>
Acked-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/ping.c | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c index 7041d09ae5d5..41836ab6c200 100644 --- a/net/ipv4/ping.c +++ b/net/ipv4/ping.c @@ -22,7 +22,6 @@ #include <asm/system.h> #include <linux/uaccess.h> -#include <asm/ioctls.h> #include <linux/types.h> #include <linux/fcntl.h> #include <linux/socket.h> @@ -609,23 +608,6 @@ do_confirm: goto out; } -/* - * IOCTL requests applicable to the UDP^H^H^HICMP protocol - */ - -int ping_ioctl(struct sock *sk, int cmd, unsigned long arg) -{ - pr_debug("ping_ioctl(sk=%p,sk->num=%u,cmd=%d,arg=%lu)\n", - inet_sk(sk), inet_sk(sk)->inet_num, cmd, arg); - switch (cmd) { - case SIOCOUTQ: - case SIOCINQ: - return udp_ioctl(sk, cmd, arg); - default: - return -ENOIOCTLCMD; - } -} - int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, size_t len, int noblock, int flags, int *addr_len) { @@ -735,7 +717,6 @@ struct proto ping_prot = { .close = ping_close, .connect = ip4_datagram_connect, .disconnect = udp_disconnect, - .ioctl = ping_ioctl, .setsockopt = ip_setsockopt, .getsockopt = ip_getsockopt, .sendmsg = ping_sendmsg, |