linux/kernel/bpf
Breno Leitao a615f67e1a bpf: Add sockptr support for getsockopt
The whole network stack uses sockptr, and while it doesn't move to
something more modern, let's use sockptr in getsockptr BPF hooks, so, it
could be used by other callers.

The main motivation for this change is to use it in the io_uring
{g,s}etsockopt(), which will use a userspace pointer for *optval, but, a
kernel value for optlen.

Link: https://lore.kernel.org/all/ZSArfLaaGcfd8LH8@gmail.com/

Signed-off-by: Breno Leitao <leitao@debian.org>
Acked-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20231016134750.1381153-2-leitao@debian.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-10-19 14:05:28 -06:00
..
preload bpf: make preloaded map iterators to display map elements count 2023-07-06 12:42:25 -07:00
arraymap.c bpf: return long from bpf_map_ops funcs 2023-03-22 15:11:30 -07:00
bloom_filter.c bpf: Centralize permissions checks for all BPF map types 2023-06-19 14:04:04 +02:00
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 Networking changes for 6.4. 2023-04-26 16:07:23 -07:00
bpf_iter.c bpf: implement numbers iterator 2023-03-08 16:19:51 -08:00
bpf_local_storage.c bpf: bpf_sk_storage: Fix the missing uncharge in sk_omem_alloc 2023-09-06 11:08:14 +02:00
bpf_lru_list.c bpf: Address KCSAN report on bpf_lru_list 2023-05-12 12:01:03 -07:00
bpf_lru_list.h bpf: lru: Remove unused declaration bpf_lru_promote() 2023-08-08 17:21:42 -07:00
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: Support default .validate() and .update() behavior for struct_ops links 2023-08-14 22:23:39 -07:00
bpf_struct_ops_types.h bpf: Add dummy BPF STRUCT_OPS for test purpose 2021-11-01 14:10:00 -07:00
bpf_task_storage.c bpf: Teach verifier that certain helpers accept NULL pointer. 2023-04-04 16:57:16 -07:00
btf.c Probes updates for v6.6: 2023-09-02 11:10:50 -07:00
cgroup.c bpf: Add sockptr support for getsockopt 2023-10-19 14:05:28 -06:00
cgroup_iter.c cgroup: bpf: use cgroup_lock()/cgroup_unlock() wrappers 2023-03-17 12:07:13 -10:00
core.c bpf: make bpf_prog_pack allocator portable 2023-09-06 06:26:05 -07:00
cpumap.c bpf, cpumask: Clean up bpf_cpu_map_entry directly in cpu_map_free 2023-08-21 15:21:16 -07:00
cpumask.c bpf: Convert bpf_cpumask to bpf_mem_cache_free_rcu. 2023-07-12 23:45:23 +02:00
devmap.c bpf, devmap: Remove unused dtab field from bpf_dtab_netdev 2023-07-31 18:26:08 -07:00
disasm.c bpf: change bpf_alu_sign_string and bpf_movsx_string to static 2023-08-04 16:15:50 -07:00
disasm.h bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause 2021-09-02 14:49:23 +02:00
dispatcher.c bpf: Synchronize dispatcher update with bpf_dispatcher_xdp_func 2022-12-14 12:02:14 -08:00
hashtab.c bpf: populate the per-cpu insertions/deletions counters for hashmaps 2023-07-06 12:42:25 -07:00
helpers.c bpf: Allow bpf_spin_{lock,unlock} in sleepable progs 2023-08-25 09:23:17 -07:00
inode.c bpf: convert to ctime accessor functions 2023-07-24 10:30:07 +02:00
Kconfig bpf: Add fd-based tcx multi-prog infra with link support 2023-07-19 10:07:27 -07:00
link_iter.c bpf: Add bpf_link iterator 2022-05-10 11:20:45 -07:00
local_storage.c cgroup changes for v6.4-rc1 2023-04-29 10:05:22 -07:00
log.c bpf: drop unnecessary user-triggerable WARN_ONCE in verifierl log 2023-05-16 22:34:50 -07:00
lpm_trie.c bpf: Centralize permissions checks for all BPF map types 2023-06-19 14:04:04 +02:00
Makefile bpf: Add fd-based tcx multi-prog infra with link support 2023-07-19 10:07:27 -07:00
map_in_map.c bpf: Fix elem_size not being set for inner maps 2023-06-02 16:22:12 -07:00
map_in_map.h
map_iter.c bpf: allow any program to use the bpf_map_sum_elem_count kfunc 2023-07-19 09:48:53 -07:00
memalloc.c bpf: Non-atomically allocate freelist during prefill 2023-07-28 09:41:10 -07:00
mmap_unlock_work.h bpf: Introduce helper bpf_find_vma 2021-11-07 11:54:51 -08:00
mprog.c bpf: Fix mprog detachment for empty mprog entry 2023-08-04 09:35:39 -07:00
net_namespace.c net: Add includes masked by netdevice.h including uapi/bpf.h 2021-12-29 20:03:05 -08:00
offload.c net: invert the netdevice.h vs xdp.h dependency 2023-08-03 08:38:07 -07:00
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: Centralize permissions checks for all BPF map types 2023-06-19 14:04:04 +02:00
reuseport_array.c bpf: Centralize permissions checks for all BPF map types 2023-06-19 14:04:04 +02:00
ringbuf.c bpf: Remove unnecessary ring buffer size check 2023-07-05 14:09:45 +02:00
stackmap.c bpf: Centralize permissions checks for all BPF map types 2023-06-19 14:04:04 +02:00
syscall.c bpf: Assign bpf_tramp_run_ctx::saved_run_ctx before recursion check. 2023-09-06 10:44:28 +02:00
sysfs_btf.c bpf: Load and verify kernel module BTFs 2020-11-10 15:25:53 -08:00
task_iter.c bpf: keep a reference to the mm, in case the task is dead. 2022-12-28 14:11:48 -08:00
tcx.c tcx: Fix splat during dev unregister 2023-07-31 14:44:02 -07:00
tnum.c bpf, tnums: Provably sound, faster, and more precise algorithm for tnum_mul 2021-06-01 13:34:15 +02:00
trampoline.c bpf: Assign bpf_tramp_run_ctx::saved_run_ctx before recursion check. 2023-09-06 10:44:28 +02:00
verifier.c bpf: Allow bpf_spin_{lock,unlock} in sleepable progs 2023-08-25 09:23:17 -07:00