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Alexei Starovoitov 89aa075832 net: sock: allow eBPF programs to be attached to sockets 
introduce new setsockopt() command:

setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, &prog_fd, sizeof(prog_fd))

where prog_fd was received from syscall bpf(BPF_PROG_LOAD, attr, ...)
and attr->prog_type == BPF_PROG_TYPE_SOCKET_FILTER

setsockopt() calls bpf_prog_get() which increments refcnt of the program,
so it doesn't get unloaded while socket is using the program.

The same eBPF program can be attached to multiple sockets.

User task exit automatically closes socket which calls sk_filter_uncharge()
which decrements refcnt of eBPF program

Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2014-12-05 21:47:32 -08:00
..
Kbuild UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
auxvec.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
bitsperlong.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
byteorder.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
errno.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
fcntl.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
ioctl.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
ioctls.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
ipcbuf.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
mman.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
msgbuf.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
param.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
poll.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
posix_types.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
ptrace.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
resource.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
sembuf.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
setup.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
shmbuf.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
sigcontext.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
siginfo.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
signal.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-12-20 18:05:28 -08:00
socket.h net: sock: allow eBPF programs to be attached to sockets 2014-12-05 21:47:32 -08:00
sockios.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
stat.h UAPI: fix endianness conditionals in M32R's asm/stat.h 2013-03-13 15:21:49 -07:00
statfs.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
swab.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
termbits.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
termios.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
types.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00
unistd.h UAPI: (Scripted) Disintegrate arch/m32r/include/asm 2012-12-19 16:07:18 +00:00