TARGETS += cpu-hotplug
TARGETS += memory-hotplug
TARGETS += efivarfs
-TARGETS += net-socket
-TARGETS += net-afpacket
+TARGETS += net
all:
for TARGET in $(TARGETS); do \
+++ /dev/null
-# Makefile for net-socket selftests
-
-CC = $(CROSS_COMPILE)gcc
-CFLAGS = -Wall
-
-CFLAGS += -I../../../../usr/include/
-
-AF_PACKET_PROGS = psock_fanout
-
-all: $(AF_PACKET_PROGS)
-%: %.c
- $(CC) $(CFLAGS) -o $@ $^
-
-run_tests: all
- @/bin/sh ./run_afpackettests || echo "afpackettests: [FAIL]"
-
-clean:
- $(RM) $(AF_PACKET_PROGS)
+++ /dev/null
-/*
- * Copyright 2013 Google Inc.
- * Author: Willem de Bruijn (willemb@google.com)
- *
- * A basic test of packet socket fanout behavior.
- *
- * Control:
- * - create fanout fails as expected with illegal flag combinations
- * - join fanout fails as expected with diverging types or flags
- *
- * Datapath:
- * Open a pair of packet sockets and a pair of INET sockets, send a known
- * number of packets across the two INET sockets and count the number of
- * packets enqueued onto the two packet sockets.
- *
- * The test currently runs for
- * - PACKET_FANOUT_HASH
- * - PACKET_FANOUT_HASH with PACKET_FANOUT_FLAG_ROLLOVER
- * - PACKET_FANOUT_LB
- * - PACKET_FANOUT_CPU
- * - PACKET_FANOUT_ROLLOVER
- *
- * Todo:
- * - functionality: PACKET_FANOUT_FLAG_DEFRAG
- *
- * License (GPLv2):
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#define _GNU_SOURCE /* for sched_setaffinity */
-
-#include <arpa/inet.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <linux/filter.h>
-#include <linux/if_packet.h>
-#include <net/ethernet.h>
-#include <netinet/ip.h>
-#include <netinet/udp.h>
-#include <poll.h>
-#include <sched.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/mman.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#define DATA_LEN 100
-#define DATA_CHAR 'a'
-#define RING_NUM_FRAMES 20
-#define PORT_BASE 8000
-
-static void pair_udp_open(int fds[], uint16_t port)
-{
- struct sockaddr_in saddr, daddr;
-
- fds[0] = socket(PF_INET, SOCK_DGRAM, 0);
- fds[1] = socket(PF_INET, SOCK_DGRAM, 0);
- if (fds[0] == -1 || fds[1] == -1) {
- fprintf(stderr, "ERROR: socket dgram\n");
- exit(1);
- }
-
- memset(&saddr, 0, sizeof(saddr));
- saddr.sin_family = AF_INET;
- saddr.sin_port = htons(port);
- saddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
-
- memset(&daddr, 0, sizeof(daddr));
- daddr.sin_family = AF_INET;
- daddr.sin_port = htons(port + 1);
- daddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
-
- /* must bind both to get consistent hash result */
- if (bind(fds[1], (void *) &daddr, sizeof(daddr))) {
- perror("bind");
- exit(1);
- }
- if (bind(fds[0], (void *) &saddr, sizeof(saddr))) {
- perror("bind");
- exit(1);
- }
- if (connect(fds[0], (void *) &daddr, sizeof(daddr))) {
- perror("connect");
- exit(1);
- }
-}
-
-static void pair_udp_send(int fds[], int num)
-{
- char buf[DATA_LEN], rbuf[DATA_LEN];
-
- memset(buf, DATA_CHAR, sizeof(buf));
- while (num--) {
- /* Should really handle EINTR and EAGAIN */
- if (write(fds[0], buf, sizeof(buf)) != sizeof(buf)) {
- fprintf(stderr, "ERROR: send failed left=%d\n", num);
- exit(1);
- }
- if (read(fds[1], rbuf, sizeof(rbuf)) != sizeof(rbuf)) {
- fprintf(stderr, "ERROR: recv failed left=%d\n", num);
- exit(1);
- }
- if (memcmp(buf, rbuf, sizeof(buf))) {
- fprintf(stderr, "ERROR: data failed left=%d\n", num);
- exit(1);
- }
- }
-}
-
-static void sock_fanout_setfilter(int fd)
-{
- struct sock_filter bpf_filter[] = {
- { 0x80, 0, 0, 0x00000000 }, /* LD pktlen */
- { 0x35, 0, 5, DATA_LEN }, /* JGE DATA_LEN [f goto nomatch]*/
- { 0x30, 0, 0, 0x00000050 }, /* LD ip[80] */
- { 0x15, 0, 3, DATA_CHAR }, /* JEQ DATA_CHAR [f goto nomatch]*/
- { 0x30, 0, 0, 0x00000051 }, /* LD ip[81] */
- { 0x15, 0, 1, DATA_CHAR }, /* JEQ DATA_CHAR [f goto nomatch]*/
- { 0x6, 0, 0, 0x00000060 }, /* RET match */
-/* nomatch */ { 0x6, 0, 0, 0x00000000 }, /* RET no match */
- };
- struct sock_fprog bpf_prog;
-
- bpf_prog.filter = bpf_filter;
- bpf_prog.len = sizeof(bpf_filter) / sizeof(struct sock_filter);
- if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &bpf_prog,
- sizeof(bpf_prog))) {
- perror("setsockopt SO_ATTACH_FILTER");
- exit(1);
- }
-}
-
-/* Open a socket in a given fanout mode.
- * @return -1 if mode is bad, a valid socket otherwise */
-static int sock_fanout_open(uint16_t typeflags, int num_packets)
-{
- int fd, val;
-
- fd = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
- if (fd < 0) {
- perror("socket packet");
- exit(1);
- }
-
- /* fanout group ID is always 0: tests whether old groups are deleted */
- val = ((int) typeflags) << 16;
- if (setsockopt(fd, SOL_PACKET, PACKET_FANOUT, &val, sizeof(val))) {
- if (close(fd)) {
- perror("close packet");
- exit(1);
- }
- return -1;
- }
-
- sock_fanout_setfilter(fd);
- return fd;
-}
-
-static char *sock_fanout_open_ring(int fd)
-{
- struct tpacket_req req = {
- .tp_block_size = getpagesize(),
- .tp_frame_size = getpagesize(),
- .tp_block_nr = RING_NUM_FRAMES,
- .tp_frame_nr = RING_NUM_FRAMES,
- };
- char *ring;
-
- if (setsockopt(fd, SOL_PACKET, PACKET_RX_RING, (void *) &req,
- sizeof(req))) {
- perror("packetsock ring setsockopt");
- exit(1);
- }
-
- ring = mmap(0, req.tp_block_size * req.tp_block_nr,
- PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
- if (!ring) {
- fprintf(stderr, "packetsock ring mmap\n");
- exit(1);
- }
-
- return ring;
-}
-
-static int sock_fanout_read_ring(int fd, void *ring)
-{
- struct tpacket_hdr *header = ring;
- int count = 0;
-
- while (header->tp_status & TP_STATUS_USER && count < RING_NUM_FRAMES) {
- count++;
- header = ring + (count * getpagesize());
- }
-
- return count;
-}
-
-static int sock_fanout_read(int fds[], char *rings[], const int expect[])
-{
- int ret[2];
-
- ret[0] = sock_fanout_read_ring(fds[0], rings[0]);
- ret[1] = sock_fanout_read_ring(fds[1], rings[1]);
-
- fprintf(stderr, "info: count=%d,%d, expect=%d,%d\n",
- ret[0], ret[1], expect[0], expect[1]);
-
- if ((!(ret[0] == expect[0] && ret[1] == expect[1])) &&
- (!(ret[0] == expect[1] && ret[1] == expect[0]))) {
- fprintf(stderr, "ERROR: incorrect queue lengths\n");
- return 1;
- }
-
- return 0;
-}
-
-/* Test illegal mode + flag combination */
-static void test_control_single(void)
-{
- fprintf(stderr, "test: control single socket\n");
-
- if (sock_fanout_open(PACKET_FANOUT_ROLLOVER |
- PACKET_FANOUT_FLAG_ROLLOVER, 0) != -1) {
- fprintf(stderr, "ERROR: opened socket with dual rollover\n");
- exit(1);
- }
-}
-
-/* Test illegal group with different modes or flags */
-static void test_control_group(void)
-{
- int fds[2];
-
- fprintf(stderr, "test: control multiple sockets\n");
-
- fds[0] = sock_fanout_open(PACKET_FANOUT_HASH, 20);
- if (fds[0] == -1) {
- fprintf(stderr, "ERROR: failed to open HASH socket\n");
- exit(1);
- }
- if (sock_fanout_open(PACKET_FANOUT_HASH |
- PACKET_FANOUT_FLAG_DEFRAG, 10) != -1) {
- fprintf(stderr, "ERROR: joined group with wrong flag defrag\n");
- exit(1);
- }
- if (sock_fanout_open(PACKET_FANOUT_HASH |
- PACKET_FANOUT_FLAG_ROLLOVER, 10) != -1) {
- fprintf(stderr, "ERROR: joined group with wrong flag ro\n");
- exit(1);
- }
- if (sock_fanout_open(PACKET_FANOUT_CPU, 10) != -1) {
- fprintf(stderr, "ERROR: joined group with wrong mode\n");
- exit(1);
- }
- fds[1] = sock_fanout_open(PACKET_FANOUT_HASH, 20);
- if (fds[1] == -1) {
- fprintf(stderr, "ERROR: failed to join group\n");
- exit(1);
- }
- if (close(fds[1]) || close(fds[0])) {
- fprintf(stderr, "ERROR: closing sockets\n");
- exit(1);
- }
-}
-
-static int test_datapath(uint16_t typeflags, int port_off,
- const int expect1[], const int expect2[])
-{
- const int expect0[] = { 0, 0 };
- char *rings[2];
- int fds[2], fds_udp[2][2], ret;
-
- fprintf(stderr, "test: datapath 0x%hx\n", typeflags);
-
- fds[0] = sock_fanout_open(typeflags, 20);
- fds[1] = sock_fanout_open(typeflags, 20);
- if (fds[0] == -1 || fds[1] == -1) {
- fprintf(stderr, "ERROR: failed open\n");
- exit(1);
- }
- rings[0] = sock_fanout_open_ring(fds[0]);
- rings[1] = sock_fanout_open_ring(fds[1]);
- pair_udp_open(fds_udp[0], PORT_BASE);
- pair_udp_open(fds_udp[1], PORT_BASE + port_off);
- sock_fanout_read(fds, rings, expect0);
-
- /* Send data, but not enough to overflow a queue */
- pair_udp_send(fds_udp[0], 15);
- pair_udp_send(fds_udp[1], 5);
- ret = sock_fanout_read(fds, rings, expect1);
-
- /* Send more data, overflow the queue */
- pair_udp_send(fds_udp[0], 15);
- /* TODO: ensure consistent order between expect1 and expect2 */
- ret |= sock_fanout_read(fds, rings, expect2);
-
- if (munmap(rings[1], RING_NUM_FRAMES * getpagesize()) ||
- munmap(rings[0], RING_NUM_FRAMES * getpagesize())) {
- fprintf(stderr, "close rings\n");
- exit(1);
- }
- if (close(fds_udp[1][1]) || close(fds_udp[1][0]) ||
- close(fds_udp[0][1]) || close(fds_udp[0][0]) ||
- close(fds[1]) || close(fds[0])) {
- fprintf(stderr, "close datapath\n");
- exit(1);
- }
-
- return ret;
-}
-
-static int set_cpuaffinity(int cpuid)
-{
- cpu_set_t mask;
-
- CPU_ZERO(&mask);
- CPU_SET(cpuid, &mask);
- if (sched_setaffinity(0, sizeof(mask), &mask)) {
- if (errno != EINVAL) {
- fprintf(stderr, "setaffinity %d\n", cpuid);
- exit(1);
- }
- return 1;
- }
-
- return 0;
-}
-
-int main(int argc, char **argv)
-{
- const int expect_hash[2][2] = { { 15, 5 }, { 20, 5 } };
- const int expect_hash_rb[2][2] = { { 15, 5 }, { 20, 15 } };
- const int expect_lb[2][2] = { { 10, 10 }, { 18, 17 } };
- const int expect_rb[2][2] = { { 20, 0 }, { 20, 15 } };
- const int expect_cpu0[2][2] = { { 20, 0 }, { 20, 0 } };
- const int expect_cpu1[2][2] = { { 0, 20 }, { 0, 20 } };
- int port_off = 2, tries = 5, ret;
-
- test_control_single();
- test_control_group();
-
- /* find a set of ports that do not collide onto the same socket */
- ret = test_datapath(PACKET_FANOUT_HASH, port_off,
- expect_hash[0], expect_hash[1]);
- while (ret && tries--) {
- fprintf(stderr, "info: trying alternate ports (%d)\n", tries);
- ret = test_datapath(PACKET_FANOUT_HASH, ++port_off,
- expect_hash[0], expect_hash[1]);
- }
-
- ret |= test_datapath(PACKET_FANOUT_HASH | PACKET_FANOUT_FLAG_ROLLOVER,
- port_off, expect_hash_rb[0], expect_hash_rb[1]);
- ret |= test_datapath(PACKET_FANOUT_LB,
- port_off, expect_lb[0], expect_lb[1]);
- ret |= test_datapath(PACKET_FANOUT_ROLLOVER,
- port_off, expect_rb[0], expect_rb[1]);
-
- set_cpuaffinity(0);
- ret |= test_datapath(PACKET_FANOUT_CPU, port_off,
- expect_cpu0[0], expect_cpu0[1]);
- if (!set_cpuaffinity(1))
- /* TODO: test that choice alternates with previous */
- ret |= test_datapath(PACKET_FANOUT_CPU, port_off,
- expect_cpu1[0], expect_cpu1[1]);
-
- if (ret)
- return 1;
-
- printf("OK. All tests passed\n");
- return 0;
-}
+++ /dev/null
-#!/bin/sh
-
-if [ $(id -u) != 0 ]; then
- echo $msg must be run as root >&2
- exit 0
-fi
-
-echo "--------------------"
-echo "running psock_fanout test"
-echo "--------------------"
-./psock_fanout
-if [ $? -ne 0 ]; then
- echo "[FAIL]"
-else
- echo "[PASS]"
-fi
+++ /dev/null
-# Makefile for net-socket selftests
-
-CC = $(CROSS_COMPILE)gcc
-CFLAGS = -Wall
-
-NET_SOCK_PROGS = socket
-
-all: $(NET_SOCK_PROGS)
-%: %.c
- $(CC) $(CFLAGS) -o $@ $^
-
-run_tests: all
- @/bin/sh ./run_netsocktests || echo "sockettests: [FAIL]"
-
-clean:
- $(RM) $(NET_SOCK_PROGS)
+++ /dev/null
-#!/bin/bash
-
-echo "--------------------"
-echo "running socket test"
-echo "--------------------"
-./socket
-if [ $? -ne 0 ]; then
- echo "[FAIL]"
-else
- echo "[PASS]"
-fi
-
+++ /dev/null
-#include <stdio.h>
-#include <errno.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-
-struct socket_testcase {
- int domain;
- int type;
- int protocol;
-
- /* 0 = valid file descriptor
- * -foo = error foo
- */
- int expect;
-
- /* If non-zero, accept EAFNOSUPPORT to handle the case
- * of the protocol not being configured into the kernel.
- */
- int nosupport_ok;
-};
-
-static struct socket_testcase tests[] = {
- { AF_MAX, 0, 0, -EAFNOSUPPORT, 0 },
- { AF_INET, SOCK_STREAM, IPPROTO_TCP, 0, 1 },
- { AF_INET, SOCK_DGRAM, IPPROTO_TCP, -EPROTONOSUPPORT, 1 },
- { AF_INET, SOCK_DGRAM, IPPROTO_UDP, 0, 1 },
- { AF_INET, SOCK_STREAM, IPPROTO_UDP, -EPROTONOSUPPORT, 1 },
-};
-
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
-#define ERR_STRING_SZ 64
-
-static int run_tests(void)
-{
- char err_string1[ERR_STRING_SZ];
- char err_string2[ERR_STRING_SZ];
- int i, err;
-
- err = 0;
- for (i = 0; i < ARRAY_SIZE(tests); i++) {
- struct socket_testcase *s = &tests[i];
- int fd;
-
- fd = socket(s->domain, s->type, s->protocol);
- if (fd < 0) {
- if (s->nosupport_ok &&
- errno == EAFNOSUPPORT)
- continue;
-
- if (s->expect < 0 &&
- errno == -s->expect)
- continue;
-
- strerror_r(-s->expect, err_string1, ERR_STRING_SZ);
- strerror_r(errno, err_string2, ERR_STRING_SZ);
-
- fprintf(stderr, "socket(%d, %d, %d) expected "
- "err (%s) got (%s)\n",
- s->domain, s->type, s->protocol,
- err_string1, err_string2);
-
- err = -1;
- break;
- } else {
- close(fd);
-
- if (s->expect < 0) {
- strerror_r(errno, err_string1, ERR_STRING_SZ);
-
- fprintf(stderr, "socket(%d, %d, %d) expected "
- "success got err (%s)\n",
- s->domain, s->type, s->protocol,
- err_string1);
-
- err = -1;
- break;
- }
- }
- }
-
- return err;
-}
-
-int main(void)
-{
- int err = run_tests();
-
- return err;
-}
--- /dev/null
+# Makefile for net selftests
+
+CC = $(CROSS_COMPILE)gcc
+CFLAGS = -Wall
+
+CFLAGS += -I../../../../usr/include/
+
+NET_PROGS = socket psock_fanout
+
+all: $(NET_PROGS)
+%: %.c
+ $(CC) $(CFLAGS) -o $@ $^
+
+run_tests: all
+ @/bin/sh ./run_netsocktests || echo "sockettests: [FAIL]"
+ @/bin/sh ./run_afpackettests || echo "afpackettests: [FAIL]"
+
+clean:
+ $(RM) $(NET_PROGS)
--- /dev/null
+/*
+ * Copyright 2013 Google Inc.
+ * Author: Willem de Bruijn (willemb@google.com)
+ *
+ * A basic test of packet socket fanout behavior.
+ *
+ * Control:
+ * - create fanout fails as expected with illegal flag combinations
+ * - join fanout fails as expected with diverging types or flags
+ *
+ * Datapath:
+ * Open a pair of packet sockets and a pair of INET sockets, send a known
+ * number of packets across the two INET sockets and count the number of
+ * packets enqueued onto the two packet sockets.
+ *
+ * The test currently runs for
+ * - PACKET_FANOUT_HASH
+ * - PACKET_FANOUT_HASH with PACKET_FANOUT_FLAG_ROLLOVER
+ * - PACKET_FANOUT_LB
+ * - PACKET_FANOUT_CPU
+ * - PACKET_FANOUT_ROLLOVER
+ *
+ * Todo:
+ * - functionality: PACKET_FANOUT_FLAG_DEFRAG
+ *
+ * License (GPLv2):
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#define _GNU_SOURCE /* for sched_setaffinity */
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/filter.h>
+#include <linux/if_packet.h>
+#include <net/ethernet.h>
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <sched.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#define DATA_LEN 100
+#define DATA_CHAR 'a'
+#define RING_NUM_FRAMES 20
+#define PORT_BASE 8000
+
+static void pair_udp_open(int fds[], uint16_t port)
+{
+ struct sockaddr_in saddr, daddr;
+
+ fds[0] = socket(PF_INET, SOCK_DGRAM, 0);
+ fds[1] = socket(PF_INET, SOCK_DGRAM, 0);
+ if (fds[0] == -1 || fds[1] == -1) {
+ fprintf(stderr, "ERROR: socket dgram\n");
+ exit(1);
+ }
+
+ memset(&saddr, 0, sizeof(saddr));
+ saddr.sin_family = AF_INET;
+ saddr.sin_port = htons(port);
+ saddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+
+ memset(&daddr, 0, sizeof(daddr));
+ daddr.sin_family = AF_INET;
+ daddr.sin_port = htons(port + 1);
+ daddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+
+ /* must bind both to get consistent hash result */
+ if (bind(fds[1], (void *) &daddr, sizeof(daddr))) {
+ perror("bind");
+ exit(1);
+ }
+ if (bind(fds[0], (void *) &saddr, sizeof(saddr))) {
+ perror("bind");
+ exit(1);
+ }
+ if (connect(fds[0], (void *) &daddr, sizeof(daddr))) {
+ perror("connect");
+ exit(1);
+ }
+}
+
+static void pair_udp_send(int fds[], int num)
+{
+ char buf[DATA_LEN], rbuf[DATA_LEN];
+
+ memset(buf, DATA_CHAR, sizeof(buf));
+ while (num--) {
+ /* Should really handle EINTR and EAGAIN */
+ if (write(fds[0], buf, sizeof(buf)) != sizeof(buf)) {
+ fprintf(stderr, "ERROR: send failed left=%d\n", num);
+ exit(1);
+ }
+ if (read(fds[1], rbuf, sizeof(rbuf)) != sizeof(rbuf)) {
+ fprintf(stderr, "ERROR: recv failed left=%d\n", num);
+ exit(1);
+ }
+ if (memcmp(buf, rbuf, sizeof(buf))) {
+ fprintf(stderr, "ERROR: data failed left=%d\n", num);
+ exit(1);
+ }
+ }
+}
+
+static void sock_fanout_setfilter(int fd)
+{
+ struct sock_filter bpf_filter[] = {
+ { 0x80, 0, 0, 0x00000000 }, /* LD pktlen */
+ { 0x35, 0, 5, DATA_LEN }, /* JGE DATA_LEN [f goto nomatch]*/
+ { 0x30, 0, 0, 0x00000050 }, /* LD ip[80] */
+ { 0x15, 0, 3, DATA_CHAR }, /* JEQ DATA_CHAR [f goto nomatch]*/
+ { 0x30, 0, 0, 0x00000051 }, /* LD ip[81] */
+ { 0x15, 0, 1, DATA_CHAR }, /* JEQ DATA_CHAR [f goto nomatch]*/
+ { 0x6, 0, 0, 0x00000060 }, /* RET match */
+/* nomatch */ { 0x6, 0, 0, 0x00000000 }, /* RET no match */
+ };
+ struct sock_fprog bpf_prog;
+
+ bpf_prog.filter = bpf_filter;
+ bpf_prog.len = sizeof(bpf_filter) / sizeof(struct sock_filter);
+ if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &bpf_prog,
+ sizeof(bpf_prog))) {
+ perror("setsockopt SO_ATTACH_FILTER");
+ exit(1);
+ }
+}
+
+/* Open a socket in a given fanout mode.
+ * @return -1 if mode is bad, a valid socket otherwise */
+static int sock_fanout_open(uint16_t typeflags, int num_packets)
+{
+ int fd, val;
+
+ fd = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
+ if (fd < 0) {
+ perror("socket packet");
+ exit(1);
+ }
+
+ /* fanout group ID is always 0: tests whether old groups are deleted */
+ val = ((int) typeflags) << 16;
+ if (setsockopt(fd, SOL_PACKET, PACKET_FANOUT, &val, sizeof(val))) {
+ if (close(fd)) {
+ perror("close packet");
+ exit(1);
+ }
+ return -1;
+ }
+
+ sock_fanout_setfilter(fd);
+ return fd;
+}
+
+static char *sock_fanout_open_ring(int fd)
+{
+ struct tpacket_req req = {
+ .tp_block_size = getpagesize(),
+ .tp_frame_size = getpagesize(),
+ .tp_block_nr = RING_NUM_FRAMES,
+ .tp_frame_nr = RING_NUM_FRAMES,
+ };
+ char *ring;
+
+ if (setsockopt(fd, SOL_PACKET, PACKET_RX_RING, (void *) &req,
+ sizeof(req))) {
+ perror("packetsock ring setsockopt");
+ exit(1);
+ }
+
+ ring = mmap(0, req.tp_block_size * req.tp_block_nr,
+ PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ if (!ring) {
+ fprintf(stderr, "packetsock ring mmap\n");
+ exit(1);
+ }
+
+ return ring;
+}
+
+static int sock_fanout_read_ring(int fd, void *ring)
+{
+ struct tpacket_hdr *header = ring;
+ int count = 0;
+
+ while (header->tp_status & TP_STATUS_USER && count < RING_NUM_FRAMES) {
+ count++;
+ header = ring + (count * getpagesize());
+ }
+
+ return count;
+}
+
+static int sock_fanout_read(int fds[], char *rings[], const int expect[])
+{
+ int ret[2];
+
+ ret[0] = sock_fanout_read_ring(fds[0], rings[0]);
+ ret[1] = sock_fanout_read_ring(fds[1], rings[1]);
+
+ fprintf(stderr, "info: count=%d,%d, expect=%d,%d\n",
+ ret[0], ret[1], expect[0], expect[1]);
+
+ if ((!(ret[0] == expect[0] && ret[1] == expect[1])) &&
+ (!(ret[0] == expect[1] && ret[1] == expect[0]))) {
+ fprintf(stderr, "ERROR: incorrect queue lengths\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+/* Test illegal mode + flag combination */
+static void test_control_single(void)
+{
+ fprintf(stderr, "test: control single socket\n");
+
+ if (sock_fanout_open(PACKET_FANOUT_ROLLOVER |
+ PACKET_FANOUT_FLAG_ROLLOVER, 0) != -1) {
+ fprintf(stderr, "ERROR: opened socket with dual rollover\n");
+ exit(1);
+ }
+}
+
+/* Test illegal group with different modes or flags */
+static void test_control_group(void)
+{
+ int fds[2];
+
+ fprintf(stderr, "test: control multiple sockets\n");
+
+ fds[0] = sock_fanout_open(PACKET_FANOUT_HASH, 20);
+ if (fds[0] == -1) {
+ fprintf(stderr, "ERROR: failed to open HASH socket\n");
+ exit(1);
+ }
+ if (sock_fanout_open(PACKET_FANOUT_HASH |
+ PACKET_FANOUT_FLAG_DEFRAG, 10) != -1) {
+ fprintf(stderr, "ERROR: joined group with wrong flag defrag\n");
+ exit(1);
+ }
+ if (sock_fanout_open(PACKET_FANOUT_HASH |
+ PACKET_FANOUT_FLAG_ROLLOVER, 10) != -1) {
+ fprintf(stderr, "ERROR: joined group with wrong flag ro\n");
+ exit(1);
+ }
+ if (sock_fanout_open(PACKET_FANOUT_CPU, 10) != -1) {
+ fprintf(stderr, "ERROR: joined group with wrong mode\n");
+ exit(1);
+ }
+ fds[1] = sock_fanout_open(PACKET_FANOUT_HASH, 20);
+ if (fds[1] == -1) {
+ fprintf(stderr, "ERROR: failed to join group\n");
+ exit(1);
+ }
+ if (close(fds[1]) || close(fds[0])) {
+ fprintf(stderr, "ERROR: closing sockets\n");
+ exit(1);
+ }
+}
+
+static int test_datapath(uint16_t typeflags, int port_off,
+ const int expect1[], const int expect2[])
+{
+ const int expect0[] = { 0, 0 };
+ char *rings[2];
+ int fds[2], fds_udp[2][2], ret;
+
+ fprintf(stderr, "test: datapath 0x%hx\n", typeflags);
+
+ fds[0] = sock_fanout_open(typeflags, 20);
+ fds[1] = sock_fanout_open(typeflags, 20);
+ if (fds[0] == -1 || fds[1] == -1) {
+ fprintf(stderr, "ERROR: failed open\n");
+ exit(1);
+ }
+ rings[0] = sock_fanout_open_ring(fds[0]);
+ rings[1] = sock_fanout_open_ring(fds[1]);
+ pair_udp_open(fds_udp[0], PORT_BASE);
+ pair_udp_open(fds_udp[1], PORT_BASE + port_off);
+ sock_fanout_read(fds, rings, expect0);
+
+ /* Send data, but not enough to overflow a queue */
+ pair_udp_send(fds_udp[0], 15);
+ pair_udp_send(fds_udp[1], 5);
+ ret = sock_fanout_read(fds, rings, expect1);
+
+ /* Send more data, overflow the queue */
+ pair_udp_send(fds_udp[0], 15);
+ /* TODO: ensure consistent order between expect1 and expect2 */
+ ret |= sock_fanout_read(fds, rings, expect2);
+
+ if (munmap(rings[1], RING_NUM_FRAMES * getpagesize()) ||
+ munmap(rings[0], RING_NUM_FRAMES * getpagesize())) {
+ fprintf(stderr, "close rings\n");
+ exit(1);
+ }
+ if (close(fds_udp[1][1]) || close(fds_udp[1][0]) ||
+ close(fds_udp[0][1]) || close(fds_udp[0][0]) ||
+ close(fds[1]) || close(fds[0])) {
+ fprintf(stderr, "close datapath\n");
+ exit(1);
+ }
+
+ return ret;
+}
+
+static int set_cpuaffinity(int cpuid)
+{
+ cpu_set_t mask;
+
+ CPU_ZERO(&mask);
+ CPU_SET(cpuid, &mask);
+ if (sched_setaffinity(0, sizeof(mask), &mask)) {
+ if (errno != EINVAL) {
+ fprintf(stderr, "setaffinity %d\n", cpuid);
+ exit(1);
+ }
+ return 1;
+ }
+
+ return 0;
+}
+
+int main(int argc, char **argv)
+{
+ const int expect_hash[2][2] = { { 15, 5 }, { 20, 5 } };
+ const int expect_hash_rb[2][2] = { { 15, 5 }, { 20, 15 } };
+ const int expect_lb[2][2] = { { 10, 10 }, { 18, 17 } };
+ const int expect_rb[2][2] = { { 20, 0 }, { 20, 15 } };
+ const int expect_cpu0[2][2] = { { 20, 0 }, { 20, 0 } };
+ const int expect_cpu1[2][2] = { { 0, 20 }, { 0, 20 } };
+ int port_off = 2, tries = 5, ret;
+
+ test_control_single();
+ test_control_group();
+
+ /* find a set of ports that do not collide onto the same socket */
+ ret = test_datapath(PACKET_FANOUT_HASH, port_off,
+ expect_hash[0], expect_hash[1]);
+ while (ret && tries--) {
+ fprintf(stderr, "info: trying alternate ports (%d)\n", tries);
+ ret = test_datapath(PACKET_FANOUT_HASH, ++port_off,
+ expect_hash[0], expect_hash[1]);
+ }
+
+ ret |= test_datapath(PACKET_FANOUT_HASH | PACKET_FANOUT_FLAG_ROLLOVER,
+ port_off, expect_hash_rb[0], expect_hash_rb[1]);
+ ret |= test_datapath(PACKET_FANOUT_LB,
+ port_off, expect_lb[0], expect_lb[1]);
+ ret |= test_datapath(PACKET_FANOUT_ROLLOVER,
+ port_off, expect_rb[0], expect_rb[1]);
+
+ set_cpuaffinity(0);
+ ret |= test_datapath(PACKET_FANOUT_CPU, port_off,
+ expect_cpu0[0], expect_cpu0[1]);
+ if (!set_cpuaffinity(1))
+ /* TODO: test that choice alternates with previous */
+ ret |= test_datapath(PACKET_FANOUT_CPU, port_off,
+ expect_cpu1[0], expect_cpu1[1]);
+
+ if (ret)
+ return 1;
+
+ printf("OK. All tests passed\n");
+ return 0;
+}
--- /dev/null
+#!/bin/sh
+
+if [ $(id -u) != 0 ]; then
+ echo $msg must be run as root >&2
+ exit 0
+fi
+
+echo "--------------------"
+echo "running psock_fanout test"
+echo "--------------------"
+./psock_fanout
+if [ $? -ne 0 ]; then
+ echo "[FAIL]"
+else
+ echo "[PASS]"
+fi
--- /dev/null
+#!/bin/bash
+
+echo "--------------------"
+echo "running socket test"
+echo "--------------------"
+./socket
+if [ $? -ne 0 ]; then
+ echo "[FAIL]"
+else
+ echo "[PASS]"
+fi
+
--- /dev/null
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+struct socket_testcase {
+ int domain;
+ int type;
+ int protocol;
+
+ /* 0 = valid file descriptor
+ * -foo = error foo
+ */
+ int expect;
+
+ /* If non-zero, accept EAFNOSUPPORT to handle the case
+ * of the protocol not being configured into the kernel.
+ */
+ int nosupport_ok;
+};
+
+static struct socket_testcase tests[] = {
+ { AF_MAX, 0, 0, -EAFNOSUPPORT, 0 },
+ { AF_INET, SOCK_STREAM, IPPROTO_TCP, 0, 1 },
+ { AF_INET, SOCK_DGRAM, IPPROTO_TCP, -EPROTONOSUPPORT, 1 },
+ { AF_INET, SOCK_DGRAM, IPPROTO_UDP, 0, 1 },
+ { AF_INET, SOCK_STREAM, IPPROTO_UDP, -EPROTONOSUPPORT, 1 },
+};
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+#define ERR_STRING_SZ 64
+
+static int run_tests(void)
+{
+ char err_string1[ERR_STRING_SZ];
+ char err_string2[ERR_STRING_SZ];
+ int i, err;
+
+ err = 0;
+ for (i = 0; i < ARRAY_SIZE(tests); i++) {
+ struct socket_testcase *s = &tests[i];
+ int fd;
+
+ fd = socket(s->domain, s->type, s->protocol);
+ if (fd < 0) {
+ if (s->nosupport_ok &&
+ errno == EAFNOSUPPORT)
+ continue;
+
+ if (s->expect < 0 &&
+ errno == -s->expect)
+ continue;
+
+ strerror_r(-s->expect, err_string1, ERR_STRING_SZ);
+ strerror_r(errno, err_string2, ERR_STRING_SZ);
+
+ fprintf(stderr, "socket(%d, %d, %d) expected "
+ "err (%s) got (%s)\n",
+ s->domain, s->type, s->protocol,
+ err_string1, err_string2);
+
+ err = -1;
+ break;
+ } else {
+ close(fd);
+
+ if (s->expect < 0) {
+ strerror_r(errno, err_string1, ERR_STRING_SZ);
+
+ fprintf(stderr, "socket(%d, %d, %d) expected "
+ "success got err (%s)\n",
+ s->domain, s->type, s->protocol,
+ err_string1);
+
+ err = -1;
+ break;
+ }
+ }
+ }
+
+ return err;
+}
+
+int main(void)
+{
+ int err = run_tests();
+
+ return err;
+}
projects / linux-2.6-block.git / commitdiff