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Alexei Starovoitov 50bbfed967 bpf: track stack depth of classic bpf programs 
To track stack depth of classic bpf programs we only need
to analyze ST|STX instructions, since check_load_and_stores()
verifies that programs can load from stack only after write.

We also need to change the way cBPF stack slots map to eBPF stack,
since typical classic programs are using slots 0 and 1, so they
need to map to stack offsets -4 and -8 respectively in order
to take advantage of small stack interpreter and JITs.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2017-05-31 19:29:47 -04:00
..
Makefile gro_cells: move to net/core/gro_cells.c 2017-02-08 14:38:18 -05:00
datagram.c net: fix __skb_try_recv_from_queue to return the old behavior 2017-05-18 10:32:58 -04:00
dev.c rtnl: Add support for netdev event to link messages 2017-05-27 18:51:41 -04:00
dev_addr_lists.c net: fix spelling for synchronized 2014-11-18 15:26:32 -05:00
dev_ioctl.c net: ethernet: update drivers to handle HWTSTAMP_FILTER_NTP_ALL 2017-05-21 13:37:32 -04:00
devlink.c net/devlink: Add E-Switch encapsulation control 2017-04-22 20:26:37 +03:00
drop_monitor.c drop_monitor: use setup_timer 2017-03-12 23:47:16 -07:00
dst.c ipv4: add reference counting to metrics 2017-05-26 14:57:07 -04:00
dst_cache.c net: dst_cache_per_cpu_dst_set() can be static 2016-03-18 17:45:08 -04:00
ethtool.c net: Add ESP offload features 2017-04-14 10:05:36 +02:00
fib_rules.c fib_rules: fix error return code 2017-04-27 16:35:57 -04:00
filter.c bpf: track stack depth of classic bpf programs 2017-05-31 19:29:47 -04:00
flow.c flowcache: more "unsigned int" 2017-04-03 19:04:48 -07:00
flow_dissector.c net: flow_dissector: add support for dissection of tcp flags 2017-05-24 16:22:11 -04:00
gen_estimator.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
gen_stats.c net_sched: gen_estimator: complete rewrite of rate estimators 2016-12-05 15:21:59 -05:00
gro_cells.c net: Generic XDP 2017-04-25 13:33:49 -04:00
hwbm.c net: hwbm: Fix unbalanced spinlock in error case 2016-05-25 12:35:09 -07:00
link_watch.c dev: introduce dev_get_iflink() 2015-04-02 14:04:59 -04:00
lwt_bpf.c net: add extack arg to lwtunnel build state 2017-05-30 11:55:32 -04:00
lwtunnel.c net: add extack arg to lwtunnel build state 2017-05-30 11:55:32 -04:00
neighbour.c neighbour: update neigh timestamps iff update is effective 2017-05-17 11:41:38 -04:00
net-procfs.c net: remove NETDEV_TX_LOCKED support 2016-04-26 15:53:05 -04:00
net-sysfs.c net: make struct net_device::tx_queue_len unsigned int 2017-05-18 10:19:30 -04:00
net-sysfs.h net: netdev_kobject_init: annotate with __init 2014-01-05 20:27:54 -05:00
net-traces.c net: IPv6 fib lookup tracepoint 2015-11-22 11:54:10 -05:00
net_namespace.c net: move somaxconn init from sysctl code 2017-05-25 13:12:17 -04:00
netclassid_cgroup.c cgroup, net_cls: iterate the fds of only the tasks which are being migrated 2017-03-22 10:32:46 -07:00
netevent.c netevent: remove automatic variable in register_netevent_notifier() 2015-05-31 00:03:21 -07:00
netpoll.c netpoll: Check for skb->queue_mapping 2017-04-21 15:45:19 -04:00
netprio_cgroup.c net: break include loop netdevice.h, dsa.h, devlink.h 2017-03-28 22:46:04 -07:00
pktgen.c net-tc: convert tc_verd to integer bitfields 2017-01-08 20:58:52 -05:00
ptp_classifier.c ptp: Change ptp_class to a proper bitmask 2015-11-03 11:08:22 -05:00
request_sock.c ipv4: Namespaceify tcp_max_syn_backlog knob 2016-12-29 11:38:31 -05:00
rtnetlink.c rtnetlink: use the new rtnl_get_event() interface 2017-05-31 13:08:36 -04:00
scm.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/user.h> 2017-03-02 08:42:29 +01:00
secure_seq.c tcp: randomize timestamps on syncookies 2017-05-05 12:00:11 -04:00
skbuff.c net: allow simultaneous SW and HW transmit timestamping 2017-05-21 13:37:32 -04:00
sock.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-05-18 16:11:32 -04:00
sock_diag.c netlink: extended ACK reporting 2017-04-13 13:58:20 -04:00
sock_reuseport.c soreuseport: use "unsigned int" in __reuseport_alloc() 2017-04-03 19:06:38 -07:00
stream.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
sysctl_net_core.c net: move somaxconn init from sysctl code 2017-05-25 13:12:17 -04:00
timestamping.c net: skb_defer_rx_timestamp should check for phydev before setting up classify 2015-07-09 14:17:15 -07:00
tso.c net: tso: add support for IPv6 2015-10-26 22:24:22 -07:00
utils.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-05-02 16:40:27 -07:00