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| author | Daan De Meyer <daan.j.demeyer@gmail.com> | 2023-10-11 20:51:05 +0200 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2023-10-12 01:29:25 +0200 |
| commit | 53e380d21441909b12b6e0782b77187ae4b971c4 (patch) | |
| tree | 50f50782b17955c8331b7c0bfe7a363a20037b0b /kernel | |
| parent | bpf: Propagate modified uaddrlen from cgroup sockaddr programs (diff) | |
| download | linux-53e380d21441909b12b6e0782b77187ae4b971c4.tar.xz linux-53e380d21441909b12b6e0782b77187ae4b971c4.zip | |
bpf: Add bpf_sock_addr_set_sun_path() to allow writing unix sockaddr from bpf
As prep for adding unix socket support to the cgroup sockaddr hooks,
let's add a kfunc bpf_sock_addr_set_sun_path() that allows modifying a unix
sockaddr from bpf. While this is already possible for AF_INET and AF_INET6,
we'll need this kfunc when we add unix socket support since modifying the
address for those requires modifying both the address and the sockaddr
length.
Signed-off-by: Daan De Meyer <daan.j.demeyer@gmail.com>
Link: https://lore.kernel.org/r/20231011185113.140426-4-daan.j.demeyer@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/bpf/btf.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index 69101200c124..15d71d2986d3 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -7850,6 +7850,7 @@ static int bpf_prog_type_to_kfunc_hook(enum bpf_prog_type prog_type) case BPF_PROG_TYPE_SYSCALL: return BTF_KFUNC_HOOK_SYSCALL; case BPF_PROG_TYPE_CGROUP_SKB: + case BPF_PROG_TYPE_CGROUP_SOCK_ADDR: return BTF_KFUNC_HOOK_CGROUP_SKB; case BPF_PROG_TYPE_SCHED_ACT: return BTF_KFUNC_HOOK_SCHED_ACT; |