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https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-10-31 08:08:51 +01:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
312
tools/testing/selftests/net/psock_fanout.c
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312
tools/testing/selftests/net/psock_fanout.c
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/*
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* Copyright 2013 Google Inc.
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* Author: Willem de Bruijn (willemb@google.com)
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*
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* A basic test of packet socket fanout behavior.
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*
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* Control:
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* - create fanout fails as expected with illegal flag combinations
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* - join fanout fails as expected with diverging types or flags
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*
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* Datapath:
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* Open a pair of packet sockets and a pair of INET sockets, send a known
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* number of packets across the two INET sockets and count the number of
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* packets enqueued onto the two packet sockets.
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*
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* The test currently runs for
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* - PACKET_FANOUT_HASH
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* - PACKET_FANOUT_HASH with PACKET_FANOUT_FLAG_ROLLOVER
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* - PACKET_FANOUT_LB
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* - PACKET_FANOUT_CPU
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* - PACKET_FANOUT_ROLLOVER
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*
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* Todo:
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* - functionality: PACKET_FANOUT_FLAG_DEFRAG
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*
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* License (GPLv2):
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#define _GNU_SOURCE /* for sched_setaffinity */
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#include <arpa/inet.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <linux/filter.h>
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#include <linux/if_packet.h>
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#include <net/ethernet.h>
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#include <netinet/ip.h>
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#include <netinet/udp.h>
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#include <poll.h>
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#include <sched.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mman.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "psock_lib.h"
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#define RING_NUM_FRAMES 20
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/* Open a socket in a given fanout mode.
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* @return -1 if mode is bad, a valid socket otherwise */
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static int sock_fanout_open(uint16_t typeflags, int num_packets)
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{
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int fd, val;
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fd = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
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if (fd < 0) {
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perror("socket packet");
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exit(1);
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}
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/* fanout group ID is always 0: tests whether old groups are deleted */
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val = ((int) typeflags) << 16;
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if (setsockopt(fd, SOL_PACKET, PACKET_FANOUT, &val, sizeof(val))) {
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if (close(fd)) {
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perror("close packet");
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exit(1);
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}
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return -1;
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}
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pair_udp_setfilter(fd);
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return fd;
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}
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static char *sock_fanout_open_ring(int fd)
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{
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struct tpacket_req req = {
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.tp_block_size = getpagesize(),
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.tp_frame_size = getpagesize(),
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.tp_block_nr = RING_NUM_FRAMES,
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.tp_frame_nr = RING_NUM_FRAMES,
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};
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char *ring;
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int val = TPACKET_V2;
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if (setsockopt(fd, SOL_PACKET, PACKET_VERSION, (void *) &val,
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sizeof(val))) {
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perror("packetsock ring setsockopt version");
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exit(1);
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}
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if (setsockopt(fd, SOL_PACKET, PACKET_RX_RING, (void *) &req,
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sizeof(req))) {
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perror("packetsock ring setsockopt");
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exit(1);
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}
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ring = mmap(0, req.tp_block_size * req.tp_block_nr,
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PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
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if (!ring) {
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fprintf(stderr, "packetsock ring mmap\n");
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exit(1);
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}
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return ring;
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}
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static int sock_fanout_read_ring(int fd, void *ring)
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{
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struct tpacket2_hdr *header = ring;
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int count = 0;
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while (count < RING_NUM_FRAMES && header->tp_status & TP_STATUS_USER) {
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count++;
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header = ring + (count * getpagesize());
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}
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return count;
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}
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static int sock_fanout_read(int fds[], char *rings[], const int expect[])
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{
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int ret[2];
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ret[0] = sock_fanout_read_ring(fds[0], rings[0]);
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ret[1] = sock_fanout_read_ring(fds[1], rings[1]);
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fprintf(stderr, "info: count=%d,%d, expect=%d,%d\n",
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ret[0], ret[1], expect[0], expect[1]);
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if ((!(ret[0] == expect[0] && ret[1] == expect[1])) &&
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(!(ret[0] == expect[1] && ret[1] == expect[0]))) {
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fprintf(stderr, "ERROR: incorrect queue lengths\n");
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return 1;
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}
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return 0;
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}
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/* Test illegal mode + flag combination */
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static void test_control_single(void)
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{
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fprintf(stderr, "test: control single socket\n");
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if (sock_fanout_open(PACKET_FANOUT_ROLLOVER |
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PACKET_FANOUT_FLAG_ROLLOVER, 0) != -1) {
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fprintf(stderr, "ERROR: opened socket with dual rollover\n");
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exit(1);
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}
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}
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/* Test illegal group with different modes or flags */
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static void test_control_group(void)
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{
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int fds[2];
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fprintf(stderr, "test: control multiple sockets\n");
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fds[0] = sock_fanout_open(PACKET_FANOUT_HASH, 20);
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if (fds[0] == -1) {
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fprintf(stderr, "ERROR: failed to open HASH socket\n");
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exit(1);
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}
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if (sock_fanout_open(PACKET_FANOUT_HASH |
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PACKET_FANOUT_FLAG_DEFRAG, 10) != -1) {
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fprintf(stderr, "ERROR: joined group with wrong flag defrag\n");
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exit(1);
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}
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if (sock_fanout_open(PACKET_FANOUT_HASH |
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PACKET_FANOUT_FLAG_ROLLOVER, 10) != -1) {
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fprintf(stderr, "ERROR: joined group with wrong flag ro\n");
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exit(1);
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}
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if (sock_fanout_open(PACKET_FANOUT_CPU, 10) != -1) {
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fprintf(stderr, "ERROR: joined group with wrong mode\n");
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exit(1);
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}
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fds[1] = sock_fanout_open(PACKET_FANOUT_HASH, 20);
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if (fds[1] == -1) {
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fprintf(stderr, "ERROR: failed to join group\n");
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exit(1);
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}
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if (close(fds[1]) || close(fds[0])) {
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fprintf(stderr, "ERROR: closing sockets\n");
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exit(1);
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}
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}
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static int test_datapath(uint16_t typeflags, int port_off,
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const int expect1[], const int expect2[])
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{
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const int expect0[] = { 0, 0 };
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char *rings[2];
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int fds[2], fds_udp[2][2], ret;
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fprintf(stderr, "test: datapath 0x%hx\n", typeflags);
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fds[0] = sock_fanout_open(typeflags, 20);
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fds[1] = sock_fanout_open(typeflags, 20);
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if (fds[0] == -1 || fds[1] == -1) {
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fprintf(stderr, "ERROR: failed open\n");
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exit(1);
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}
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rings[0] = sock_fanout_open_ring(fds[0]);
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rings[1] = sock_fanout_open_ring(fds[1]);
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pair_udp_open(fds_udp[0], PORT_BASE);
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pair_udp_open(fds_udp[1], PORT_BASE + port_off);
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sock_fanout_read(fds, rings, expect0);
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/* Send data, but not enough to overflow a queue */
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pair_udp_send(fds_udp[0], 15);
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pair_udp_send(fds_udp[1], 5);
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ret = sock_fanout_read(fds, rings, expect1);
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/* Send more data, overflow the queue */
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pair_udp_send(fds_udp[0], 15);
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/* TODO: ensure consistent order between expect1 and expect2 */
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ret |= sock_fanout_read(fds, rings, expect2);
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if (munmap(rings[1], RING_NUM_FRAMES * getpagesize()) ||
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munmap(rings[0], RING_NUM_FRAMES * getpagesize())) {
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fprintf(stderr, "close rings\n");
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exit(1);
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}
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if (close(fds_udp[1][1]) || close(fds_udp[1][0]) ||
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close(fds_udp[0][1]) || close(fds_udp[0][0]) ||
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close(fds[1]) || close(fds[0])) {
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fprintf(stderr, "close datapath\n");
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exit(1);
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}
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return ret;
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}
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static int set_cpuaffinity(int cpuid)
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{
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cpu_set_t mask;
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CPU_ZERO(&mask);
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CPU_SET(cpuid, &mask);
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if (sched_setaffinity(0, sizeof(mask), &mask)) {
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if (errno != EINVAL) {
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fprintf(stderr, "setaffinity %d\n", cpuid);
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exit(1);
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}
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return 1;
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}
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return 0;
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}
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int main(int argc, char **argv)
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{
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const int expect_hash[2][2] = { { 15, 5 }, { 20, 5 } };
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const int expect_hash_rb[2][2] = { { 15, 5 }, { 20, 15 } };
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const int expect_lb[2][2] = { { 10, 10 }, { 18, 17 } };
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const int expect_rb[2][2] = { { 20, 0 }, { 20, 15 } };
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const int expect_cpu0[2][2] = { { 20, 0 }, { 20, 0 } };
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const int expect_cpu1[2][2] = { { 0, 20 }, { 0, 20 } };
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int port_off = 2, tries = 5, ret;
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test_control_single();
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test_control_group();
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/* find a set of ports that do not collide onto the same socket */
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ret = test_datapath(PACKET_FANOUT_HASH, port_off,
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expect_hash[0], expect_hash[1]);
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while (ret && tries--) {
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fprintf(stderr, "info: trying alternate ports (%d)\n", tries);
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ret = test_datapath(PACKET_FANOUT_HASH, ++port_off,
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expect_hash[0], expect_hash[1]);
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}
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ret |= test_datapath(PACKET_FANOUT_HASH | PACKET_FANOUT_FLAG_ROLLOVER,
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port_off, expect_hash_rb[0], expect_hash_rb[1]);
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ret |= test_datapath(PACKET_FANOUT_LB,
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port_off, expect_lb[0], expect_lb[1]);
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ret |= test_datapath(PACKET_FANOUT_ROLLOVER,
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port_off, expect_rb[0], expect_rb[1]);
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set_cpuaffinity(0);
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ret |= test_datapath(PACKET_FANOUT_CPU, port_off,
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expect_cpu0[0], expect_cpu0[1]);
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if (!set_cpuaffinity(1))
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/* TODO: test that choice alternates with previous */
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ret |= test_datapath(PACKET_FANOUT_CPU, port_off,
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expect_cpu1[0], expect_cpu1[1]);
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if (ret)
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return 1;
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printf("OK. All tests passed\n");
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return 0;
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}
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