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mirror-linux/kernel/bpf
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Puranjay Mohan 6280cf718d bpf: Implement bpf_send_signal_task() kfunc 
Implement bpf_send_signal_task kfunc that is similar to
bpf_send_signal_thread and bpf_send_signal helpers  but can be used to
send signals to other threads and processes. It also supports sending a
cookie with the signal similar to sigqueue().

If the receiving process establishes a handler for the signal using the
SA_SIGINFO flag to sigaction(), then it can obtain this cookie via the
si_value field of the siginfo_t structure passed as the second argument
to the handler.

Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20241016084136.10305-2-puranjay@kernel.org
 		2024-10-21 15:02:49 -07:00
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preload
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Kconfig bpf: remove CONFIG_BPF_JIT dependency on CONFIG_MODULES of 2024-05-14 00:36:29 -07:00
Makefile bpf: Add kmem_cache iterator 2024-10-14 18:33:04 -07:00
arena.c bpf: Fix remap of arena. 2024-06-18 17:19:46 +02:00
arraymap.c bpf: Prevent tailcall infinite loop caused by freplace 2024-10-16 09:21:18 -07:00
bloom_filter.c bpf: Check bloom filter map value size 2024-03-27 09:56:17 -07:00
bpf_cgrp_storage.c bpf: Enable bpf_cgrp_storage for cgroup1 non-attach case 2023-12-08 17:08:18 -08:00
bpf_inode_storage.c bpf: switch fdget_raw() uses to CLASS(fd_raw, ...) 2024-08-13 15:58:10 -07:00
bpf_iter.c [tree-wide] finally take no_llseek out 2024-09-27 08:18:43 -07:00
bpf_local_storage.c bpf: fix order of args in call to bpf_map_kvcalloc 2024-07-10 15:31:19 -07:00
bpf_lru_list.c
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bpf_lru_list.h
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bpf_lsm.c bpf, lsm: Add check for BPF LSM return value 2024-07-29 13:09:22 -07:00
bpf_struct_ops.c bpf: Check unsupported ops from the bpf_struct_ops's cfi_stubs 2024-07-29 12:54:13 -07:00
bpf_task_storage.c
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btf.c bpf: Constify struct btf_kind_operations 2024-10-03 17:47:35 -07:00
btf_iter.c bpf: Remove custom build rule 2024-08-30 08:55:26 -07:00
btf_relocate.c bpf: Remove custom build rule 2024-08-30 08:55:26 -07:00
cgroup.c bpf: Allow bpf_current_task_under_cgroup() with BPF_CGROUP_* 2024-08-19 15:25:30 -07:00
cgroup_iter.c
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core.c bpf: Prevent tailcall infinite loop caused by freplace 2024-10-16 09:21:18 -07:00
cpumap.c bpf, cpumap: Move xdp:xdp_cpumap_kthread tracepoint before rcv 2024-09-11 16:32:11 +02:00
cpumask.c bpf: Allow invoking kfuncs from BPF_PROG_TYPE_SYSCALL progs 2024-04-05 10:56:09 -07:00
crypto.c bpf: crypto: make state and IV dynptr nullable 2024-06-13 16:33:04 -07:00
devmap.c bpf-next-for-netdev 2024-07-09 17:01:46 +02:00
disasm.c bpf: add special internal-only MOV instruction to resolve per-CPU addrs 2024-04-03 10:29:55 -07:00
disasm.h
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dispatcher.c
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hashtab.c bpf: Check percpu map value size first 2024-09-11 13:22:37 -07:00
helpers.c bpf: Implement bpf_send_signal_task() kfunc 2024-10-21 15:02:49 -07:00
inode.c bpf: Simplify character output in seq_print_delegate_opts() 2024-07-29 12:53:04 -07:00
kmem_cache_iter.c bpf: Add kmem_cache iterator 2024-10-14 18:33:04 -07:00
link_iter.c
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local_storage.c bpf: Replace 8 seq_puts() calls by seq_putc() calls 2024-07-29 12:53:00 -07:00
log.c bpf: remove redeclaration of new_n in bpf_verifier_vlog 2024-06-20 19:50:26 -07:00
lpm_trie.c bpf: Avoid kfree_rcu() under lock in bpf_lpm_trie. 2024-03-29 11:10:41 -07:00
map_in_map.c bpf: switch maps to CLASS(fd, ...) 2024-08-13 15:58:17 -07:00
map_in_map.h
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map_iter.c bpf: treewide: Annotate BPF kfuncs in BTF 2024-01-31 20:40:56 -08:00
memalloc.c bpf: Call kfree(obj) only once in free_one() 2024-10-03 17:47:35 -07:00
mmap_unlock_work.h
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mprog.c
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net_namespace.c
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offload.c
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percpu_freelist.c
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percpu_freelist.h
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prog_iter.c
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queue_stack_maps.c
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relo_core.c bpf: Remove custom build rule 2024-08-30 08:55:26 -07:00
reuseport_array.c bpf: Use sockfd_put() helper 2024-08-30 08:57:47 -07:00
ringbuf.c bpf: Fix overrunning reservations in ringbuf 2024-06-21 13:04:21 -07:00
stackmap.c bpf: wire up sleepable bpf_get_stack() and bpf_get_task_stack() helpers 2024-09-11 09:58:31 -07:00
syscall.c bpf: Prevent tailcall infinite loop caused by freplace 2024-10-16 09:21:18 -07:00
sysfs_btf.c btf: Avoid weak external references 2024-04-16 16:35:13 +02:00
task_iter.c bpf: Remove unnecessary loop in task_file_seq_get_next() 2024-07-08 16:23:19 +02:00
tcx.c
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tnum.c
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token.c bpf: convert bpf_token_create() to CLASS(fd, ...) 2024-09-12 18:58:02 -07:00
trampoline.c bpf: Prevent tailcall infinite loop caused by freplace 2024-10-16 09:21:18 -07:00
verifier.c mm/bpf: Add bpf_get_kmem_cache() kfunc 2024-10-16 09:21:03 -07:00