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Cong Wang c9be4a5c49 net: prevent setting ttl=0 via IP_TTL 
A regression is introduced by the following commit:

	commit 4d52cfbef6266092d535237ba5a4b981458ab171
	Author: Eric Dumazet <eric.dumazet@gmail.com>
	Date:   Tue Jun 2 00:42:16 2009 -0700

	    net: ipv4/ip_sockglue.c cleanups

	    Pure cleanups

but it is not a pure cleanup...

	-               if (val != -1 && (val < 1 || val>255))
	+               if (val != -1 && (val < 0 || val > 255))

Since there is no reason provided to allow ttl=0, change it back.

Reported-by: nitin padalia <padalia.nitin@gmail.com>
Cc: nitin padalia <padalia.nitin@gmail.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-08 17:57:10 -08:00
..
netfilter
netfilter: nf_nat: Also handle non-ESTABLISHED routing changes in MASQUERADE
2012-12-16 23:28:30 +01:00
af_inet.c
net: Make CAP_NET_BIND_SERVICE per user namespace
2012-11-18 20:33:37 -05:00
ah4.c
ipv4: Add redirect support to all protocol icmp error handlers.
2012-07-11 21:27:49 -07:00
arp.c
arp: fix a regression in arp_solicit()
2012-12-24 18:42:58 -08:00
cipso_ipv4.c
cipso: don't follow a NULL pointer when setsockopt() is called
2012-07-18 09:01:12 -07:00
datagram.c
ipv4: Lock socket and use cork flow in ip4_datagram_connect().
2011-05-08 13:48:57 -07:00
devinet.c
ipv4: fix NULL checking in devinet_ioctl()
2013-01-06 21:11:18 -08:00
esp4.c
ipv4: Add redirect support to all protocol icmp error handlers.
2012-07-11 21:27:49 -07:00
fib_frontend.c
net: Enable a userns root rtnl calls that are safe for unprivilged users
2012-11-18 20:33:36 -05:00
fib_lookup.h
ipv4: Fix nexthop caching wrt. scoping.
2011-03-24 18:06:47 -07:00
fib_rules.c
sections: fix section conflicts in net
2012-10-06 03:04:45 +09:00
fib_semantics.c
ipv4: 16 slots in initial fib_info hash table
2012-10-22 14:29:06 -04:00
fib_trie.c
ipv4/route: arg delay is useless in rt_cache_flush()
2012-09-18 15:44:34 -04:00
gre.c
net: ipv4: Standardize prefixes for message logging
2012-03-12 17:05:21 -07:00
icmp.c
ipv4: avoid passing NULL to inet_putpeer() in icmpv4_xrlim_allow()
2012-11-26 17:24:41 -05:00
igmp.c
igmp: export symbol ip_mc_leave_group
2012-10-01 18:39:44 -04:00
inet_connection_sock.c
inet: Fix kmemleak in tcp_v4/6_syn_recv_sock and dccp_v4/6_request_recv_sock
2012-12-14 13:14:07 -05:00
inet_diag.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2012-12-12 18:07:07 -08:00
inet_fragment.c
ipv6: unify fragment thresh handling code
2012-09-19 17:23:28 -04:00
inet_hashtables.c
net: move inet_dport/inet_num in sock_common
2012-11-30 15:02:56 -05:00
inet_lro.c
net: add skb frag size accessors
2011-10-19 03:10:46 -04:00
inet_timewait_sock.c
net: ipv4 and ipv6: Convert printk(KERN_DEBUG to pr_debug
2012-05-16 01:01:03 -04:00
inetpeer.c
Merge branch 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2012-10-02 09:54:49 -07:00
ip_forward.c
ipv4: introduce rt_uses_gateway
2012-10-08 17:42:36 -04:00
ip_fragment.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2012-12-12 18:07:07 -08:00
ip_gre.c
ipv4/ip_gre: set transport header correctly to gre header
2012-12-26 15:19:56 -08:00
ip_input.c
net: TCP early demux cleanup
2012-07-30 14:53:21 -07:00
ip_options.c
net: Allow userns root to control ipv4
2012-11-18 20:32:45 -05:00
ip_output.c
net: Handle encapsulated offloads before fragmentation or handing to lower dev
2012-12-09 00:20:28 -05:00
ip_sockglue.c
net: prevent setting ttl=0 via IP_TTL
2013-01-08 17:57:10 -08:00
ip_vti.c
net: Allow userns root to control ipv4
2012-11-18 20:32:45 -05:00
ipcomp.c
ipv4: Add redirect support to all protocol icmp error handlers.
2012-07-11 21:27:49 -07:00
ipconfig.c
net/ipv4/ipconfig: really display the BOOTP/DHCP server's address.
2013-01-04 15:14:14 -08:00
ipip.c
net: Allow userns root to control ipv4
2012-11-18 20:32:45 -05:00
ipmr.c
ipmr: advertise new mfc entries via rtnl
2012-12-04 13:08:11 -05:00
Kconfig
net/ipv4: VTI support new module for ip_vti.
2012-07-18 09:36:12 -07:00
Makefile
memcg: rename config variables
2012-07-31 18:42:43 -07:00
netfilter.c
netfilter: properly annotate ipv4_netfilter_{init,fini}()
2012-09-03 13:56:04 +02:00
ping.c
userns: Use kgids for sysctl_ping_group_range
2012-08-14 21:49:10 -07:00
proc.c
tcp: TCP Fast Open Server - header & support functions
2012-08-31 20:02:18 -04:00
protocol.c
net: Add net protocol offload registration infrustructure
2012-11-15 17:36:17 -05:00
raw.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2012-10-02 11:11:09 -07:00
route.c
ipv4/route/rtnl: get mcast attributes when dst is multicast
2012-12-07 12:24:33 -05:00
syncookies.c
tcp: better retrans tracking for defer-accept
2012-11-03 14:45:00 -04:00
sysctl_net_ipv4.c
net: Don't export sysctls to unprivileged users
2012-11-18 20:30:55 -05:00
tcp_bic.c
tcp: fix undo after RTO for BIC
2012-01-20 14:17:26 -05:00
tcp_cong.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2012-12-13 12:00:02 -08:00
tcp_cubic.c
tcp: fix undo after RTO for CUBIC
2012-01-20 14:17:26 -05:00
tcp_diag.c
inet_diag: Rename inet_diag_req into inet_diag_req_v2
2012-01-11 12:56:06 -08:00
tcp_fastopen.c
tcp: TCP Fast Open Server - header & support functions
2012-08-31 20:02:18 -04:00
tcp_highspeed.c
tcp: mark tcp_congestion_ops read_mostly
2011-03-10 00:40:17 -08:00
tcp_htcp.c
tcp: mark tcp_congestion_ops read_mostly
2011-03-10 00:40:17 -08:00
tcp_hybla.c
tcp: bool conversions
2012-05-17 14:59:59 -04:00
tcp_illinois.c
net: fix divide by zero in tcp algorithm illinois
2012-11-01 11:55:59 -04:00
tcp_input.c
tcp: should drop incoming frames without ACK flag set
2012-12-26 15:08:55 -08:00
tcp_ipv4.c
inet: Fix kmemleak in tcp_v4/6_syn_recv_sock and dccp_v4/6_request_recv_sock
2012-12-14 13:14:07 -05:00
tcp_lp.c
Fix common misspellings
2011-03-31 11:26:23 -03:00
tcp_memcontrol.c
memcg: decrement static keys at real destroy time
2012-05-29 16:22:28 -07:00
tcp_metrics.c
tcp: handle tcp_net_metrics_init() order-5 memory allocation failures
2012-11-16 13:36:27 -05:00
tcp_minisocks.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2012-11-10 18:32:51 -05:00
tcp_output.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2012-12-12 18:07:07 -08:00
tcp_probe.c
net: cleanup unsigned to unsigned int
2012-04-15 12:44:40 -04:00
tcp_scalable.c
tcp: mark tcp_congestion_ops read_mostly
2011-03-10 00:40:17 -08:00
tcp_timer.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2012-11-10 18:32:51 -05:00
tcp_vegas.c
tcp: mark tcp_congestion_ops read_mostly
2011-03-10 00:40:17 -08:00
tcp_vegas.h
…
tcp_veno.c
tcp: mark tcp_congestion_ops read_mostly
2011-03-10 00:40:17 -08:00
tcp_westwood.c
tcp: mark tcp_congestion_ops read_mostly
2011-03-10 00:40:17 -08:00
tcp_yeah.c
Fix common misspellings
2011-03-31 11:26:23 -03:00
tcp.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2012-12-12 18:07:07 -08:00
tunnel4.c
net: Convert printks to pr_<level>
2012-03-11 23:42:51 -07:00
udp_diag.c
netlink: Rename pid to portid to avoid confusion
2012-09-10 15:30:41 -04:00
udp_impl.h
ipv4: fix checkpatch errors
2012-04-15 12:37:19 -04:00
udp.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2012-10-02 11:11:09 -07:00
udplite.c
net: ipv4: Standardize prefixes for message logging
2012-03-12 17:05:21 -07:00
xfrm4_input.c
ipv4: Fix input route performance regression.
2012-07-26 15:50:39 -07:00
xfrm4_mode_beet.c
ipsec: be careful of non existing mac headers
2012-02-23 16:50:45 -05:00
xfrm4_mode_transport.c
…
xfrm4_mode_tunnel.c
net/ipv4: VTI support rx-path hook in xfrm4_mode_tunnel.
2012-07-18 09:36:12 -07:00
xfrm4_output.c
xfrm4: Don't call icmp_send on local error
2011-07-01 17:33:19 -07:00
xfrm4_policy.c
xfrm: Fix the gc threshold value for ipv4
2012-11-13 09:15:07 +01:00
xfrm4_state.c
net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules
2011-10-31 19:30:30 -04:00
xfrm4_tunnel.c
net: ipv4: Standardize prefixes for message logging
2012-03-12 17:05:21 -07:00