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06da9f3bd6
linux/include/net
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Kui-Feng Lee 8fb1a76a0f net: Update an existing TCP congestion control algorithm. 
This feature lets you immediately transition to another congestion
control algorithm or implementation with the same name.  Once a name
is updated, new connections will apply this new algorithm.

The purpose is to update a customized algorithm implemented in BPF
struct_ops with a new version on the flight.  The following is an
example of using the userspace API implemented in later BPF patches.

   link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
   .......
   err = bpf_link__update_map(link, skel->maps.ca_update_2);

We first load and register an algorithm implemented in BPF struct_ops,
then swap it out with a new one using the same name. After that, newly
created connections will apply the updated algorithm, while older ones
retain the previous version already applied.

This patch also takes this chance to refactor the ca validation into
the new tcp_validate_congestion_control() function.

Cc: netdev@vger.kernel.org, Eric Dumazet <edumazet@google.com>
Signed-off-by: Kui-Feng Lee <kuifeng@meta.com>
Link: https://lore.kernel.org/r/20230323032405.3735486-3-kuifeng@meta.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
2023-03-22 22:53:00 -07:00
..
9p net/9p: distinguish zero-copy requests 2022-12-06 07:30:55 +09:00
bluetooth Bluetooth: MGMT: add CIS feature bits to controller information 2023-02-09 14:18:27 -08:00
caif net: remove the caif_hsi driver 2021-07-01 13:19:48 -07:00
iucv net/af_iucv: Use struct_group() to zero struct iucv_sock region 2021-11-19 11:52:25 +00:00
mana net: mana: Fix IRQ name - add PCI and queue number 2023-01-20 18:17:17 -08:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next 2023-02-20 10:53:56 +00:00
netns Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf 2023-02-22 21:25:23 -08:00
nfc NFC: add NCI_UNREG flag to eliminate the race 2021-11-17 20:17:05 -08:00
phonet net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
sctp sctp: add a refcnt in sctp_stream_priorities to avoid a nested loop 2023-02-23 12:59:40 -08:00
tc_act net/sched: act_connmark: transition to percpu stats and rcu 2023-02-16 10:39:28 +01:00
6lowpan.h
act_api.h net/sched: Rename user cookie and act cookie 2023-02-20 16:46:10 -08:00
addrconf.h ipv6/addrconf: fix a null-ptr-deref bug for ip6_ptr 2022-07-28 10:42:44 -07:00
af_ieee802154.h
af_rxrpc.h rxrpc: Tidy up abort generation infrastructure 2023-01-06 09:43:32 +00:00
af_unix.h net: reclaim skb->scm_io_uring bit 2023-03-08 13:21:47 +00:00
af_vsock.h vsock: add API call for data ready 2022-08-23 10:43:11 +02:00
ah.h
amt.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
arp.h ipv4: Invalidate neighbour for broadcast address upon address addition 2022-02-21 11:44:30 +00:00
atmclip.h
ax25.h ax25: fix incorrect dev_tracker usage 2022-07-28 22:06:15 -07:00
ax88796.h ax88796: Fix some typo in a comment 2022-08-09 22:14:02 -07:00
bareudp.h bareudp: Move definition of struct bareudp_conf to bareudp.c 2021-12-13 12:34:09 +00:00
bond_3ad.h net: bonding: Share lacpdu_mcast_addr definition 2022-09-16 14:34:01 +01:00
bond_alb.h bonding (gcc13): synchronize bond_{a,t}lb_xmit() types 2022-11-02 20:38:13 -07:00
bond_options.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
bonding.h bond: Disable TLS features indication 2022-10-27 12:45:38 +02:00
bpf_sk_storage.h bpf: struct sock is declared twice in bpf_sk_storage header 2021-03-26 17:43:55 +01:00
busy_poll.h net: Fix a data-race around sysctl_net_busy_poll. 2022-08-24 13:46:58 +01:00
calipso.h
cfg80211-wext.h wifi: cfg80211: Avoid clashing function prototypes 2022-11-16 11:31:47 +02:00
cfg80211.h wifi: cfg80211: remove gfp parameter from cfg80211_obss_color_collision_notify description 2023-02-15 18:28:52 +01:00
cfg802154.h ieee802154: Add support for user beaconing requests 2023-01-28 13:51:22 +01:00
checksum.h net: checksum: drop the linux/uaccess.h include 2023-01-27 11:19:46 +00:00
cipso_ipv4.h
cls_cgroup.h
codel_impl.h codel: remove unnecessary sock.h include 2021-12-22 15:03:47 -08:00
codel_qdisc.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
codel.h codel: remove unnecessary pkt_sched.h include 2021-12-22 15:03:51 -08:00
compat.h net: copy from user before calling __get_compat_msghdr 2022-07-24 18:39:17 -06:00
datalink.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
dcbevent.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
dcbnl.h net: dcb: add helper functions to retrieve PCP and DSCP rewrite maps 2023-01-20 09:33:22 +00:00
devlink.h devlink: fix the name of value arg of devl_param_driverinit_value_get() 2023-02-13 09:49:14 +00:00
dropreason.h ipv6: icmp6: add SKB_DROP_REASON_IPV6_NDISC_NS_OTHERHOST 2023-02-20 08:54:23 +00:00
dsa.h net: dsa: add plumbing for changing and getting MAC merge layer state 2023-01-23 12:44:18 +00:00
dsfield.h
dst_cache.h wireguard: device: reset peer src endpoint when netns exits 2021-11-29 19:50:45 -08:00
dst_metadata.h xfrm: interface: Add unstable helpers for setting/getting XFRM metadata from TC-BPF 2022-12-05 21:58:27 -08:00
dst_ops.h ipv6: remove max_size check inline with ipv4 2023-01-13 20:59:14 -08:00
dst.h net: add atomic_long_t to net_device_stats fields 2022-11-16 12:48:44 +00:00
erspan.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
esp.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
espintcp.h
ethoc.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
failover.h net: failover: add net device refcount tracker 2021-12-06 16:06:02 -08:00
fib_notifier.h
fib_rules.h fib: expand fib_rule_policy 2021-12-16 07:18:35 -08:00
firewire.h firewire: net: Make use of get_unaligned_be48(), put_unaligned_be48() 2022-07-28 22:21:54 -07:00
flow_dissector.h flow_dissector: Add L2TPv3 dissectors 2022-09-20 09:13:38 +02:00
flow_offload.h net/sched: cls_api: Support hardware miss to tc action 2023-02-20 16:46:10 -08:00
flow.h net: remove unnecessary includes from net/flow.h 2023-01-27 11:19:46 +00:00
fou.h
fq_impl.h wifi: mac80211: add support for restricting netdev features per vif 2022-12-01 15:09:10 +01:00
fq.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
garp.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
gen_stats.h net: sched: Remove Qdisc::running sequence counter 2021-10-18 12:54:41 +01:00
genetlink.h mptcp: more detailed error reporting on endpoint creation 2022-11-21 13:09:07 +00:00
geneve.h net: geneve: fix array of flexible structures warnings 2022-10-31 10:43:04 +00:00
gre.h ip_gre: add csum offload support for gre header 2021-01-29 20:39:14 -08:00
gro_cells.h
gro.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-08-25 16:07:42 -07:00
gtp.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
gue.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
hwbm.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
icmp.h ipv6: ICMPV6: add response to ICMPV6 RFC 8335 PROBE messages 2021-06-28 14:29:45 -07:00
ieee80211_radiotap.h ieee80211: radiotap: fix -Wcast-qual warnings 2022-02-04 16:25:21 +01:00
ieee802154_netdev.h mac802154: Handle basic beaconing 2023-01-28 13:55:10 +01:00
if_inet6.h ipv6: fix locking issues with loops over idev->addr_list 2022-04-06 22:09:39 -07:00
ife.h
ila.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
inet6_connection_sock.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
inet6_hashtables.h net: allow unbound socket for packets in VRF when tcp_l3mdev_accept set 2022-07-29 11:58:54 +01:00
inet_common.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
inet_connection_sock.h net: Add a bhash2 table hashed by port and address 2022-08-24 19:30:07 -07:00
inet_dscp.h ipv6: Define dscp_t and stop taking ECN bits into account in fib6-rules 2022-02-07 20:12:45 -08:00
inet_ecn.h net: add skb_get_dsfield() helper 2021-10-15 11:33:08 +01:00
inet_frag.h net: dropreason: add SKB_DROP_REASON_FRAG_REASM_TIMEOUT 2022-10-31 20:14:27 -07:00
inet_hashtables.h tcp: Add TIME_WAIT sockets in bhash2. 2022-12-30 07:25:52 +00:00
inet_sock.h inet: Add IP_LOCAL_PORT_RANGE socket option 2023-01-25 22:45:00 -08:00
inet_timewait_sock.h tcp: Add TIME_WAIT sockets in bhash2. 2022-12-30 07:25:52 +00:00
inetpeer.h
ioam6.h treewide: Replace zero-length arrays with flexible-array members 2022-02-17 07:00:39 -06:00
ip6_checksum.h net: move gro definitions to include/net/gro.h 2021-11-16 13:16:54 +00:00
ip6_fib.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2022-02-17 11:44:20 -08:00
ip6_route.h ipv6: Make ip6_route_output_flags_noref() static. 2023-01-24 18:12:52 -08:00
ip6_tunnel.h ip_gre, ip6_gre: Fix race condition on o_seqno in collect_md mode 2022-04-25 11:40:45 +01:00
ip_fib.h ipv4: Use dscp_t in struct fib_entry_notifier_info 2022-04-11 17:37:50 -07:00
ip_tunnels.h net: Add helper function to parse netlink msg of ip_tunnel_parm 2022-10-03 07:59:06 +01:00
ip_vs.h ipvs: avoid kfree_rcu without 2nd arg 2023-02-02 14:02:01 +01:00
ip.h inet: Add IP_LOCAL_PORT_RANGE socket option 2023-01-25 22:45:00 -08:00
ipcomp.h xfrm: ipcomp: add extack to ipcomp{4,6}_init_state 2022-09-29 07:18:00 +02:00
ipconfig.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
ipv6_frag.h net: dropreason: add SKB_DROP_REASON_FRAG_REASM_TIMEOUT 2022-10-31 20:14:27 -07:00
ipv6_stubs.h bpf: Change bpf_getsockopt(SOL_IPV6) to reuse do_ipv6_getsockopt() 2022-09-02 20:34:32 -07:00
ipv6.h ipv6: icmp6: add drop reason support to icmpv6_notify() 2023-02-13 19:55:32 -08:00
iw_handler.h
kcm.h
l3mdev.h
lag.h
lapb.h net: lapb: Make "lapb_t1timer_running" able to detect an already running timer 2021-03-23 14:14:50 -07:00
lib80211.h
llc_c_ac.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
llc_c_ev.h
llc_c_st.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
llc_conn.h llc: add net device refcount tracker 2021-12-07 20:44:59 -08:00
llc_if.h llc/snap: constify dev_addr passing 2021-10-13 09:40:46 -07:00
llc_pdu.h net: llc: fix skb_over_panic 2021-07-27 13:05:56 +01:00
llc_s_ac.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
llc_s_ev.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
llc_s_st.h add missing includes and forward declarations to networking includes under linux/ 2022-07-28 11:29:36 +02:00
llc_sap.h
llc.h llc: fix out-of-bound array index in llc_sk_dev_hash() 2021-11-07 19:25:29 +00:00
lwtunnel.h netfilter: add netfilter hooks to SRv6 data plane 2021-08-30 01:51:36 +02:00
mac80211.h wifi: mac80211: configure puncturing bitmap 2023-02-14 12:17:22 +01:00
mac802154.h mac802154: Drop IEEE802154_HW_RX_DROP_BAD_CKSUM 2022-10-12 12:57:19 +02:00
macsec.h net: macsec: remove the prepare flag from the MACsec offloading context 2022-09-23 06:56:08 -07:00
mctp.h mctp: Use output netdev to allocate skb headroom 2022-04-01 12:04:15 +01:00
mctpdevice.h mctp: Pass flow data & flow release events to drivers 2021-10-29 13:23:51 +01:00
mip6.h
mld.h mld: add new workqueues for process mld events 2021-03-26 15:14:56 -07:00
mpls_iptunnel.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
mpls.h
mptcp.h mptcp: remove MPTCP 'ifdef' in TCP SYN cookies 2022-12-12 13:11:24 -08:00
mrp.h mrp: introduce active flags to prevent UAF when applicant uninit 2022-11-18 12:14:55 +00:00
ncsi.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
ndisc.h ipv6: icmp6: add drop reason support to ndisc_rcv() 2023-02-13 19:55:32 -08:00
neighbour.h net: neigh: decrement the family specific qlen 2022-11-18 10:29:50 +00:00
net_debug.h net: add CONFIG_DEBUG_NET 2022-05-11 12:43:10 +01:00
net_failover.h
net_namespace.h net: add a refcount tracker for kernel sockets 2022-10-24 11:04:43 +01:00
net_ratelimit.h
net_trackers.h net: add networking namespace refcount tracker 2021-12-10 06:38:26 -08:00
netevent.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
netlabel.h
netlink.h net: netlink: recommend policy range validation 2023-01-28 00:33:51 -08:00
netprio_cgroup.h
netrom.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
nexthop.h net: ipv4: Fix rtnexthop len when RTA_FLOW is present 2021-09-24 14:07:10 +01:00
nl802154.h ieee802154: Add support for user beaconing requests 2023-01-28 13:51:22 +01:00
nsh.h
p8022.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
page_pool.h page_pool: add a comment explaining the fragment counter usage 2023-02-21 09:15:39 -08:00
pie.h
ping.h inet: ping: use hlist_nulls rcu iterator during lookup 2022-12-01 12:42:46 +01:00
pkt_cls.h net/sched: cls_api: Support hardware miss to tc action 2023-02-20 16:46:10 -08:00
pkt_sched.h net/sched: taprio: give higher priority to higher TCs in software dequeue mode 2023-02-08 09:48:52 +00:00
pptp.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
protocol.h tcp/udp: Make early_demux back namespacified. 2022-07-15 18:50:35 -07:00
psample.h psample: Add a fwd declaration for skbuff 2021-08-09 15:34:21 -07:00
psnap.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
raw.h raw: use net_hash_mix() in hash function 2023-02-03 19:56:23 -08:00
rawv6.h raw: convert raw sockets to RCU 2022-06-19 10:00:02 +01:00
red.h treewide: use get_random_u32() when possible 2022-10-11 17:42:58 -06:00
regulatory.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
request_sock.h tcp: Use BPF timeout setting for SYN ACK RTO 2022-02-02 14:45:18 +00:00
rose.h net: rose: add netdev ref tracker to 'struct rose_sock' 2022-08-01 11:59:23 -07:00
route.h net: add a couple of helpers for iph tot_len 2023-02-01 20:54:27 -08:00
rpl.h
rsi_91x.h
rtnetlink.h rtnetlink: Honour NLM_F_ECHO flag in rtnl_delete_link 2022-10-31 18:10:21 -07:00
rtnh.h
sch_generic.h net/sched: cls_api: Support hardware miss to tc action 2023-02-20 16:46:10 -08:00
scm.h
secure_seq.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
seg6_hmac.h
seg6_local.h
seg6.h udp6: Use Segment Routing Header for dest address if present 2022-01-04 12:17:35 +00:00
selftests.h net: selftest: fix build issue if INET is disabled 2021-04-28 14:06:45 -07:00
slhc_vj.h
smc.h net/smc: De-tangle ism and smc device initialization 2023-01-25 09:46:49 +00:00
snmp.h
sock_reuseport.h soreuseport: Fix socket selection for SO_INCOMING_CPU. 2022-10-25 11:35:16 +02:00
sock.h Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net 2023-02-17 11:06:39 +00:00
Space.h wan: remove sbni/granch driver 2021-08-03 13:05:26 +01:00
stp.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
strparser.h tls: rx: remove the message decrypted tracking 2022-07-18 11:24:10 +01:00
switchdev.h bridge: switchdev: Allow device drivers to install locked FDB entries 2022-11-09 19:06:13 -08:00
tc_wrapper.h net/sched: Retire rsvp classifier 2023-02-16 09:27:07 +01:00
tcp_states.h
tcp.h net: Update an existing TCP congestion control algorithm. 2023-03-22 22:53:00 -07:00
timewait_sock.h
tipc.h
tls_toe.h
tls.h net/tls: Describe ciphers sizes by const structs 2022-09-22 17:27:41 -07:00
transp_v6.h inet6: Remove inet6_destroy_sock(). 2022-10-24 09:40:39 +01:00
tso.h net: tso: inline tso_count_descs() 2022-12-12 15:04:39 -08:00
tun_proto.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
udp_tunnel.h net: Change the udp encap_err_rcv to allow use of {ip,ipv6}_icmp_error() 2022-11-08 16:42:28 +00:00
udp.h udp: track the forward memory release threshold in an hot cacheline 2022-10-24 10:52:50 +01:00
udplite.h tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct(). 2022-10-12 17:50:37 -07:00
vsock_addr.h
vxlan.h drivers: vxlan: vnifilter: per vni stats 2022-03-01 08:38:02 +00:00
wext.h
x25.h
x25device.h
xdp_priv.h net: add missing includes and forward declarations under net/ 2022-07-22 12:53:22 +01:00
xdp_sock_drv.h xsk: Remove unused xsk_buff_discard 2022-09-30 07:55:46 -07:00
xdp_sock.h bpf, net: xskmap memory usage 2023-03-07 09:33:43 -08:00
xdp.h xdp: remove unused {__,}xdp_release_frame() 2023-03-14 15:20:05 -07:00
xfrm.h bpf-next-for-netdev 2022-12-12 11:27:42 -08:00
xsk_buff_pool.h xsk: Add cb area to struct xdp_buff_xsk 2023-01-23 09:58:23 -08:00