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linux/kernel/bpf
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Joanne Koong f8d3da4ef8 bpf: Add flags arg to bpf_dynptr_read and bpf_dynptr_write APIs 
Commit 13bbbfbea7 ("bpf: Add bpf_dynptr_read and bpf_dynptr_write")
added the bpf_dynptr_write() and bpf_dynptr_read() APIs.

However, it will be needed for some dynptr types to pass in flags as
well (e.g. when writing to a skb, the user may like to invalidate the
hash or recompute the checksum).

This patch adds a "u64 flags" arg to the bpf_dynptr_read() and
bpf_dynptr_write() APIs before their UAPI signature freezes where
we then cannot change them anymore with a 5.19.x released kernel.

Fixes: 13bbbfbea7 ("bpf: Add bpf_dynptr_read and bpf_dynptr_write")
Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20220706232547.4016651-1-joannelkoong@gmail.com
2022-07-08 10:55:53 +02:00
..
preload bpf: Remove redundant slash 2022-03-07 22:19:32 -08:00
arraymap.c bpf: add bpf_map_lookup_percpu_elem for percpu map 2022-05-11 18:16:54 -07:00
bloom_filter.c bpf: Compute map_btf_id during build time 2022-04-26 11:35:21 -07:00
bpf_inode_storage.c bpf: Compute map_btf_id during build time 2022-04-26 11:35:21 -07:00
bpf_iter.c bpf: Remove redundant assignment to meta.seq in __task_seq_show() 2022-04-11 21:14:34 +02:00
bpf_local_storage.c bpf: Fix usage of trace RCU in local storage. 2022-04-19 17:55:45 -07:00
bpf_lru_list.c
bpf_lru_list.h printk: stop including cache.h from printk.h 2022-05-13 07:20:07 -07:00
bpf_lsm.c bpf, x86: Attach a cookie to fentry/fexit/fmod_ret/lsm. 2022-05-10 21:58:31 -07:00
bpf_struct_ops.c bpf, x86: Generate trampolines from bpf_tramp_links 2022-05-10 17:50:40 -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: Compute map_btf_id during build time 2022-04-26 11:35:21 -07:00
btf.c bpf: Limit maximum modifier chain length in btf_check_type_tags 2022-06-15 19:32:12 +02:00
cgroup.c bpf: Use bpf_prog_run_array_cg_flags everywhere 2022-04-25 17:03:57 -07:00
core.c bpf: Make sure mac_header was set before using it 2022-07-07 20:13:13 +02:00
cpumap.c bpf: Compute map_btf_id during build time 2022-04-26 11:35:21 -07:00
devmap.c bpf: Compute map_btf_id during build time 2022-04-26 11:35:21 -07:00
disasm.c bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause 2021-09-02 14:49:23 +02:00
disasm.h bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause 2021-09-02 14:49:23 +02:00
dispatcher.c
hashtab.c bpf: add bpf_map_lookup_percpu_elem for percpu map 2022-05-11 18:16:54 -07:00
helpers.c bpf: Add flags arg to bpf_dynptr_read and bpf_dynptr_write APIs 2022-07-08 10:55:53 +02:00
inode.c bpf: Convert bpf_preload.ko to use light skeleton. 2022-02-10 23:31:51 +01:00
Kconfig rcu: Make the TASKS_RCU Kconfig option be selected 2022-04-20 16:52:58 -07:00
link_iter.c bpf: Add bpf_link iterator 2022-05-10 11:20:45 -07:00
local_storage.c bpf: Compute map_btf_id during build time 2022-04-26 11:35:21 -07:00
lpm_trie.c bpf: Compute map_btf_id during build time 2022-04-26 11:35:21 -07:00
Makefile bpf: Add bpf_link iterator 2022-05-10 11:20:45 -07:00
map_in_map.c bpf: Allow storing unreferenced kptr in map 2022-04-25 17:31:35 -07:00
map_in_map.h
map_iter.c bpf: Introduce MEM_RDONLY flag 2021-12-18 13:27:41 -08:00
mmap_unlock_work.h bpf: Introduce helper bpf_find_vma 2021-11-07 11:54:51 -08:00
net_namespace.c net: Add includes masked by netdevice.h including uapi/bpf.h 2021-12-29 20:03:05 -08:00
offload.c
percpu_freelist.c
percpu_freelist.h
prog_iter.c
queue_stack_maps.c bpf: Compute map_btf_id during build time 2022-04-26 11:35:21 -07:00
reuseport_array.c bpf: Compute map_btf_id during build time 2022-04-26 11:35:21 -07:00
ringbuf.c bpf: Dynptr support for ring buffers 2022-05-23 14:31:28 -07:00
stackmap.c bpf: Compute map_btf_id during build time 2022-04-26 11:35:21 -07:00
syscall.c bpf: refine kernel.unprivileged_bpf_disabled behaviour 2022-05-20 19:48:29 -07:00
sysfs_btf.c
task_iter.c bpf: Remove redundant assignment to meta.seq in __task_seq_show() 2022-04-11 21:14:34 +02:00
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: Fix potential array overflow in bpf_trampoline_get_progs() 2022-05-11 21:24:20 -07:00
verifier.c bpf: Fix insufficient bounds propagation from adjust_scalar_min_max_vals 2022-07-01 12:56:27 -07:00