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linux/net/netfilter
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Krister Johansen 4548b683b7 Introduce a sysctl that modifies the value of PROT_SOCK. 
Add net.ipv4.ip_unprivileged_port_start, which is a per namespace sysctl
that denotes the first unprivileged inet port in the namespace.  To
disable all privileged ports set this to zero.  It also checks for
overlap with the local port range.  The privileged and local range may
not overlap.

The use case for this change is to allow containerized processes to bind
to priviliged ports, but prevent them from ever being allowed to modify
their container's network configuration.  The latter is accomplished by
ensuring that the network namespace is not a child of the user
namespace.  This modification was needed to allow the container manager
to disable a namespace's priviliged port restrictions without exposing
control of the network namespace to processes in the user namespace.

Signed-off-by: Krister Johansen <kjlx@templeofstupid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2017-01-24 12:10:51 -05:00
..
ipset netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
ipvs Introduce a sysctl that modifies the value of PROT_SOCK. 2017-01-24 12:10:51 -05:00
Kconfig netfilter: nf_tables: add stateful object reference expression 2016-12-06 21:48:25 +01:00
Makefile netfilter: nf_tables: add stateful object reference expression 2016-12-06 21:48:25 +01:00
core.c netfilter: convert while loops to for loops 2016-12-06 21:42:16 +01:00
nf_conntrack_acct.c
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nf_conntrack_amanda.c
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nf_conntrack_broadcast.c
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nf_conntrack_core.c ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
nf_conntrack_ecache.c
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nf_conntrack_expect.c
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nf_conntrack_extend.c
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nf_conntrack_ftp.c
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nf_conntrack_h323_asn1.c
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nf_conntrack_h323_main.c
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nf_conntrack_h323_types.c
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nf_conntrack_helper.c netfilter: conntrack: fix CT target for UNSPEC helpers 2016-11-08 23:53:37 +01:00
nf_conntrack_irc.c
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nf_conntrack_l3proto_generic.c
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nf_conntrack_labels.c
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nf_conntrack_netbios_ns.c
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nf_conntrack_netlink.c
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nf_conntrack_pptp.c
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nf_conntrack_proto.c netfilter: conntrack: add nf_conntrack_default_on sysctl 2016-12-04 21:17:25 +01:00
nf_conntrack_proto_dccp.c netfilter: conntrack: built-in support for DCCP 2016-12-04 20:53:15 +01:00
nf_conntrack_proto_generic.c
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nf_conntrack_proto_gre.c netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
nf_conntrack_proto_sctp.c netfilter: conntrack: built-in support for SCTP 2016-12-04 20:55:37 +01:00
nf_conntrack_proto_tcp.c
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nf_conntrack_proto_udp.c
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nf_conntrack_proto_udplite.c netfilter: conntrack: built-in support for UDPlite 2016-12-04 20:57:36 +01:00
nf_conntrack_sane.c
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nf_conntrack_seqadj.c
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nf_conntrack_sip.c
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nf_conntrack_snmp.c
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nf_conntrack_standalone.c netfilter: conntrack: add nf_conntrack_default_on sysctl 2016-12-04 21:17:25 +01:00
nf_conntrack_tftp.c
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nf_conntrack_timeout.c
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nf_conntrack_timestamp.c
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nf_dup_netdev.c netfilter: add and use nf_fwd_netdev_egress 2016-12-06 21:48:22 +01:00
nf_internals.h netfilter: merge nf_iterate() into nf_hook_slow() 2016-11-03 11:52:59 +01:00
nf_log.c
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nf_log_common.c netfilter: nf_log: do not assume ethernet header in netdev family 2016-12-04 20:45:33 +01:00
nf_log_netdev.c netfilter: nf_log: do not assume ethernet header in netdev family 2016-12-04 20:45:33 +01:00
nf_nat_amanda.c
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nf_nat_core.c netfilter: built-in NAT support for UDPlite 2016-12-04 20:45:32 +01:00
nf_nat_ftp.c
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nf_nat_helper.c
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nf_nat_irc.c
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nf_nat_proto_common.c
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nf_nat_proto_dccp.c netfilter: built-in NAT support for DCCP 2016-12-04 20:45:30 +01:00
nf_nat_proto_sctp.c netfilter: nat: skip checksum on offload SCTP packets 2016-12-07 13:22:50 +01:00
nf_nat_proto_tcp.c
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nf_nat_proto_udp.c
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nf_nat_proto_udplite.c netfilter: built-in NAT support for UDPlite 2016-12-04 20:45:32 +01:00
nf_nat_proto_unknown.c
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nf_nat_redirect.c
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nf_nat_sip.c
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nf_nat_tftp.c
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nf_queue.c netfilter: introduce accessor functions for hook entries 2016-12-06 21:42:15 +01:00
nf_sockopt.c
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nf_synproxy_core.c netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
nf_tables_api.c netfilter: nf_tables: fix oob access 2016-12-14 23:39:06 +01:00
nf_tables_core.c netfilter: nf_tables: simplify the basic expressions' init routine 2016-11-09 23:42:23 +01:00
nf_tables_inet.c
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nf_tables_netdev.c
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nf_tables_trace.c netfilter: nf_tables: use hook state from xt_action_param structure 2016-11-03 11:52:34 +01:00
nfnetlink.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
nfnetlink_acct.c
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nfnetlink_cthelper.c
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nfnetlink_cttimeout.c
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nfnetlink_log.c ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
nfnetlink_queue.c ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
nft_bitwise.c netfilter: nf_tables: simplify the basic expressions' init routine 2016-11-09 23:42:23 +01:00
nft_byteorder.c netfilter: nf_tables: simplify the basic expressions' init routine 2016-11-09 23:42:23 +01:00
nft_cmp.c netfilter: nf_tables: simplify the basic expressions' init routine 2016-11-09 23:42:23 +01:00
nft_compat.c
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nft_counter.c netfilter: nft_counter: rework atomic dump and reset 2016-12-11 10:01:05 -05:00
nft_ct.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
nft_dup_netdev.c
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nft_dynset.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-11-15 10:54:36 -05:00
nft_exthdr.c
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nft_fib.c netfilter: nft_fib: convert htonl to ntohl properly 2016-12-06 21:42:20 +01:00
nft_fib_inet.c netfilter: nf_tables: use hook state from xt_action_param structure 2016-11-03 11:52:34 +01:00
nft_fwd_netdev.c netfilter: add and use nf_fwd_netdev_egress 2016-12-06 21:48:22 +01:00
nft_hash.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-03 12:29:53 -05:00
nft_immediate.c netfilter: nf_tables: simplify the basic expressions' init routine 2016-11-09 23:42:23 +01:00
nft_limit.c
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nft_log.c netfilter: nf_tables: use hook state from xt_action_param structure 2016-11-03 11:52:34 +01:00
nft_lookup.c netfilter: nf_tables: simplify the basic expressions' init routine 2016-11-09 23:42:23 +01:00
nft_masq.c netfilter: nf_tables: add conntrack dependencies for nat/masq/redir expressions 2016-12-04 21:17:16 +01:00
nft_meta.c netfilter: nf_tables: use hook state from xt_action_param structure 2016-11-03 11:52:34 +01:00
nft_nat.c netfilter: nf_tables: add conntrack dependencies for nat/masq/redir expressions 2016-12-04 21:17:16 +01:00
nft_numgen.c
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nft_objref.c netfilter: nft_objref: support for stateful object maps 2016-12-07 13:22:48 +01:00
nft_payload.c netfilter: nft_payload: mangle ckecksum if NFT_PAYLOAD_L4CSUM_PSEUDOHDR is set 2016-12-14 23:39:11 +01:00
nft_queue.c netfilter: nft_queue: use raw_smp_processor_id() 2016-12-14 23:39:01 +01:00
nft_quota.c netfilter: nft_quota: reset quota after dump 2016-12-14 23:38:51 +01:00
nft_range.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-03 12:29:53 -05:00
nft_redir.c netfilter: nf_tables: add conntrack dependencies for nat/masq/redir expressions 2016-12-04 21:17:16 +01:00
nft_reject.c
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nft_reject_inet.c netfilter: nf_tables: use hook state from xt_action_param structure 2016-11-03 11:52:34 +01:00
nft_rt.c netfilter: nf_tables: use hook state from xt_action_param structure 2016-11-03 11:52:34 +01:00
nft_set_hash.c netfilter: nf_tables: support for set flushing 2016-12-07 13:31:40 +01:00
nft_set_rbtree.c netfilter: nf_tables: support for set flushing 2016-12-07 13:31:40 +01:00
x_tables.c netfilter: x_tables: avoid warn and OOM killer on vmalloc call 2016-12-07 13:31:41 +01:00
xt_AUDIT.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_CHECKSUM.c
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xt_CLASSIFY.c
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xt_CONNSECMARK.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_CT.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_DSCP.c
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xt_HL.c
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xt_HMARK.c
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xt_IDLETIMER.c
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xt_LED.c
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xt_LOG.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_NETMAP.c netfilter: nat: add dependencies on conntrack module 2016-12-04 21:16:51 +01:00
xt_NFLOG.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_NFQUEUE.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_RATEEST.c net_sched: gen_estimator: complete rewrite of rate estimators 2016-12-05 15:21:59 -05:00
xt_REDIRECT.c netfilter: nat: add dependencies on conntrack module 2016-12-04 21:16:51 +01:00
xt_SECMARK.c
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xt_TCPMSS.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_TCPOPTSTRIP.c
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xt_TEE.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_TPROXY.c netfilter: defrag: only register defrag functionality if needed 2016-12-06 21:42:00 +01:00
xt_TRACE.c
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xt_addrtype.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_bpf.c netfilter: xt_bpf: support ebpf 2016-12-07 13:32:35 +01:00
xt_cgroup.c
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xt_cluster.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_comment.c
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xt_connbytes.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_connlabel.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_connlimit.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_connmark.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_conntrack.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_cpu.c
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xt_dccp.c
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xt_devgroup.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_dscp.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_ecn.c
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xt_esp.c
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xt_hashlimit.c netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
xt_helper.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_hl.c
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xt_ipcomp.c
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xt_iprange.c
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xt_ipvs.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_l2tp.c
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xt_length.c
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xt_limit.c
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xt_mac.c
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xt_mark.c
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xt_multiport.c netfilter: xt_multiport: Fix wrong unmatch result with multiple ports 2016-12-06 21:48:20 +01:00
xt_nat.c netfilter: nat: add dependencies on conntrack module 2016-12-04 21:16:51 +01:00
xt_nfacct.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_osf.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_owner.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_physdev.c
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xt_pkttype.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_policy.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
xt_quota.c
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xt_rateest.c net_sched: gen_estimator: complete rewrite of rate estimators 2016-12-05 15:21:59 -05:00
xt_realm.c
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xt_recent.c netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
xt_repldata.h
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xt_sctp.c
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xt_set.c netfilter: ipset: Improve skbinfo get/init helpers 2016-11-10 13:28:42 +01:00
xt_socket.c netfilter: defrag: only register defrag functionality if needed 2016-12-06 21:42:00 +01:00
xt_state.c netfilter: add and use nf_ct_netns_get/put 2016-12-04 21:16:50 +01:00
xt_statistic.c
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xt_string.c
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xt_tcpmss.c
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xt_tcpudp.c
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xt_time.c ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
xt_u32.c
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