Stanislav Fomichev 8086fbaf49 bpf: Allow any port in bpf_bind helper ... We want to have a tighter control on what ports we bind to in the BPF_CGROUP_INET{4,6}_CONNECT hooks even if it means connect() becomes slightly more expensive. The expensive part comes from the fact that we now need to call inet_csk_get_port() that verifies that the port is not used and allocates an entry in the hash table for it. Since we can't rely on "snum || !bind_address_no_port" to prevent us from calling POST_BIND hook anymore, let's add another bind flag to indicate that the call site is BPF program. v5: * fix wrong AF_INET (should be AF_INET6) in the bpf program for v6 v3: * More bpf_bind documentation refinements (Martin KaFai Lau) * Add UDP tests as well (Martin KaFai Lau) * Don't start the thread, just do socket+bind+listen (Martin KaFai Lau) v2: * Update documentation (Andrey Ignatov) * Pass BIND_FORCE_ADDRESS_NO_PORT conditionally (Andrey Ignatov) Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrey Ignatov <rdna@fb.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/20200508174611.228805-5-sdf@google.com		2020-05-09 00:48:20 +02:00
..
bpf_sk_storage.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2020-02-29 15:53:35 -08:00
datagram.c	net: use indirect call wrappers for skb_copy_datagram_iter()	2020-03-25 11:30:40 -07:00
datagram.h
dev.c	net: napi: use READ_ONCE()/WRITE_ONCE()	2020-04-23 12:43:20 -07:00
dev_addr_lists.c	net: remove unnecessary variables and callback	2019-10-24 14:53:49 -07:00
dev_ioctl.c	ethtool: add timestamping related string sets	2020-03-29 22:32:36 -07:00
devlink.c	devlink: Allow setting of packet trap group parameters	2020-03-30 17:54:58 -07:00
drop_monitor.c	net: core: Replace zero-length array with flexible-array member	2020-02-28 12:08:37 -08:00
dst.c	net: print proper warning on dst underflow	2019-09-26 09:05:56 +02:00
dst_cache.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
failover.c
fib_notifier.c	net: fib_notifier: propagate extack down to the notifier block callback	2019-10-04 11:10:56 -07:00
fib_rules.c	net: fib_rules: Correctly set table field when table number exceeds 8 bits	2020-02-16 18:38:24 -08:00
filter.c	bpf: Allow any port in bpf_bind helper	2020-05-09 00:48:20 +02:00
flow_dissector.c	bpf: Use bpf_prog_run_pin_on_cpu() at simple call sites.	2020-02-24 16:20:09 -08:00
flow_offload.c	netfilter: flowtable: Fix incorrect tc_setup_type type	2020-03-27 18:41:52 +01:00
gen_estimator.c	net_sched: gen_estimator: extend packet counter to 64bit	2019-11-06 21:51:36 -08:00
gen_stats.c	docs: networking: convert gen_stats.txt to ReST	2020-04-28 14:39:46 -07:00
gro_cells.c
hwbm.c	net: hwbm: Make the hwbm_pool lock a mutex	2019-06-09 19:40:10 -07:00
link_watch.c	net: Add IF_OPER_TESTING	2020-04-20 12:43:24 -07:00
lwt_bpf.c	net: add net available in build_state	2020-03-29 22:30:57 -07:00
lwtunnel.c	net: ipv6: add rpl sr tunnel	2020-03-29 22:30:57 -07:00
Makefile	ethtool: move to its own directory	2019-12-12 17:07:05 -08:00
neighbour.c	sysctl: pass kernel pointers to ->proc_handler	2020-04-27 02:07:40 -04:00
net-procfs.c	net: procfs: use index hashlist instead of name hashlist	2019-10-01 14:47:19 -07:00
net-sysfs.c	net: napi: use READ_ONCE()/WRITE_ONCE()	2020-04-23 12:43:20 -07:00
net-sysfs.h	net-sysfs: add netdev_change_owner()	2020-02-26 20:07:25 -08:00
net-traces.c	page_pool: add tracepoints for page_pool with details need by XDP	2019-06-19 11:23:13 -04:00
net_namespace.c	bpf: Add netns cookie and enable it for bpf cgroup hooks	2020-03-27 19:40:38 -07:00
netclassid_cgroup.c	cgroup, netclassid: remove double cond_resched	2020-04-21 15:44:30 -07:00
netevent.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
netpoll.c	netpoll: Fix use correct return type for ndo_start_xmit()	2020-04-29 11:47:16 -07:00
netprio_cgroup.c	netprio: use css ID instead of cgroup ID	2019-11-12 08:18:03 -08:00
page_pool.c	net: page pool: allow to pass zero flags to page_pool_init()	2020-03-29 21:49:20 -07:00
pktgen.c	docs: networking: convert pktgen.txt to ReST	2020-04-30 12:56:37 -07:00
ptp_classifier.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295	2019-06-05 17:36:38 +02:00
request_sock.c	tcp: add rcu protection around tp->fastopen_rsk	2019-10-13 10:13:08 -07:00
rtnetlink.c	net: rtnetlink: remove redundant assignment to variable err	2020-04-27 11:14:07 -07:00
scm.c	y2038: socket: remove timespec reference in timestamping	2019-11-15 14:38:29 +01:00
secure_seq.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
skbuff.c	net: fix skb_panic to output real address	2020-05-01 15:19:59 -07:00
skmsg.c	bpf: Use bpf_prog_run_pin_on_cpu() at simple call sites.	2020-02-24 16:20:09 -08:00
sock.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf	2020-04-09 17:39:22 -07:00
sock_diag.c	sock: make cookie generation global instead of per netns	2019-08-09 13:14:46 -07:00
sock_map.c	bpf: Allow bpf_map_lookup_elem for SOCKMAP and SOCKHASH	2020-04-29 23:30:59 +02:00
sock_reuseport.c	net: Generate reuseport group ID on group creation	2020-02-21 22:29:45 +01:00
stream.c	tcp: make sure EPOLLOUT wont be missed	2019-08-19 13:07:43 -07:00
sysctl_net_core.c	sysctl: pass kernel pointers to ->proc_handler	2020-04-27 02:07:40 -04:00
timestamping.c	net: Introduce a new MII time stamping interface.	2019-12-25 19:51:33 -08:00
tso.c	net: Use skb accessors in network core	2019-07-22 20:47:56 -07:00
utils.c	net: Fix skb->csum update in inet_proto_csum_replace16().	2020-01-24 20:54:30 +01:00
xdp.c	net: page_pool: API cleanup and comments	2020-02-20 10:09:25 -08:00