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linux/kernel/bpf
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Florian Westphal fd9c663b9a bpf: minimal support for programs hooked into netfilter framework 
This adds minimal support for BPF_PROG_TYPE_NETFILTER bpf programs
that will be invoked via the NF_HOOK() points in the ip stack.

Invocation incurs an indirect call.  This is not a necessity: Its
possible to add 'DEFINE_BPF_DISPATCHER(nf_progs)' and handle the
program invocation with the same method already done for xdp progs.

This isn't done here to keep the size of this chunk down.

Verifier restricts verdicts to either DROP or ACCEPT.

Signed-off-by: Florian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/20230421170300.24115-3-fw@strlen.de
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-04-21 11:34:14 -07:00
..
preload bpf: iterators: Split iterators.lskel.h into little- and big- endian versions 2023-01-28 12:45:15 -08:00
arraymap.c bpf: return long from bpf_map_ops funcs 2023-03-22 15:11:30 -07:00
bloom_filter.c bpf: compute hashes in bloom filter similar to hashmap 2023-04-02 08:44:49 -07:00
bpf_cgrp_storage.c bpf: Teach verifier that certain helpers accept NULL pointer. 2023-04-04 16:57:16 -07:00
bpf_inode_storage.c bpf: Teach verifier that certain helpers accept NULL pointer. 2023-04-04 16:57:16 -07:00
bpf_iter.c bpf: implement numbers iterator 2023-03-08 16:19:51 -08:00
bpf_local_storage.c bpf: Handle NULL in bpf_local_storage_free. 2023-04-12 10:27:50 -07:00
bpf_lru_list.c
bpf_lru_list.h
bpf_lsm.c bpf: Fix the kernel crash caused by bpf_setsockopt(). 2023-01-26 23:26:40 -08:00
bpf_struct_ops.c bpf: Check IS_ERR for the bpf_map_get() return value 2023-03-24 12:40:47 -07:00
bpf_struct_ops_types.h
bpf_task_storage.c bpf: Teach verifier that certain helpers accept NULL pointer. 2023-04-04 16:57:16 -07:00
btf.c bpf: minimal support for programs hooked into netfilter framework 2023-04-21 11:34:14 -07:00
cgroup.c bpf: Don't EFAULT for getsockopt with optval=NULL 2023-04-21 17:09:53 +02:00
cgroup_iter.c bpf: Pin the start cgroup in cgroup_iter_seq_init() 2022-11-21 17:40:42 +01:00
core.c bpf: Support 64-bit pointers to kfuncs 2023-04-13 21:36:41 -07:00
cpumap.c bpf: return long from bpf_map_ops funcs 2023-03-22 15:11:30 -07:00
cpumask.c bpf: Treat KF_RELEASE kfuncs as KF_TRUSTED_ARGS 2023-03-25 16:56:22 -07:00
devmap.c bpf: return long from bpf_map_ops funcs 2023-03-22 15:11:30 -07:00
disasm.c
disasm.h
dispatcher.c bpf: Synchronize dispatcher update with bpf_dispatcher_xdp_func 2022-12-14 12:02:14 -08:00
hashtab.c bpf: optimize hashmap lookups when key_size is divisible by 4 2023-04-01 15:08:19 -07:00
helpers.c bpf: Fix bpf_refcount_acquire's refcount_t address calculation 2023-04-21 16:31:37 +02:00
inode.c fs: port inode_init_owner() to mnt_idmap 2023-01-19 09:24:28 +01:00
Kconfig
link_iter.c
local_storage.c bpf: return long from bpf_map_ops funcs 2023-03-22 15:11:30 -07:00
log.c bpf: Relax log_buf NULL conditions when log_level>0 is requested 2023-04-11 18:05:44 +02:00
lpm_trie.c bpf: return long from bpf_map_ops funcs 2023-03-22 15:11:30 -07:00
Makefile bpf: Split off basic BPF verifier log into separate file 2023-04-11 18:05:42 +02:00
map_in_map.c bpf: Remove btf_field_offs, use btf_record's fields instead 2023-04-15 17:36:49 -07:00
map_in_map.h
map_iter.c
memalloc.c bpf: Add a few bpf mem allocator functions 2023-03-25 19:52:51 -07:00
mmap_unlock_work.h
net_namespace.c
offload.c bpf: offload map memory usage 2023-03-07 09:33:43 -08:00
percpu_freelist.c bpf: Initialize same number of free nodes for each pcpu_freelist 2022-11-11 12:05:14 -08:00
percpu_freelist.h
prog_iter.c
queue_stack_maps.c bpf: return long from bpf_map_ops funcs 2023-03-22 15:11:30 -07:00
reuseport_array.c bpf: return long from bpf_map_ops funcs 2023-03-22 15:11:30 -07:00
ringbuf.c bpf: return long from bpf_map_ops funcs 2023-03-22 15:11:30 -07:00
stackmap.c bpf: return long from bpf_map_ops funcs 2023-03-22 15:11:30 -07:00
syscall.c bpf: add bpf_link support for BPF_NETFILTER programs 2023-04-21 11:34:14 -07:00
sysfs_btf.c
task_iter.c bpf: keep a reference to the mm, in case the task is dead. 2022-12-28 14:11:48 -08:00
tnum.c
trampoline.c bpf: Fix attaching fentry/fexit/fmod_ret/lsm to modules 2023-03-15 18:38:21 -07:00
verifier.c bpf: minimal support for programs hooked into netfilter framework 2023-04-21 11:34:14 -07:00