Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1527 insertions, 0 deletions

diff --git a/tools/testing/selftests/bpf/test_sockmap.c b/tools/testing/selftests/bpf/test_sockmap.c
new file mode 100644
index 000000000..a7fc91bb9
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_sockmap.c
@@ -0,0 +1,1527 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2017-2018 Covalent IO, Inc. http://covalent.io
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <sys/select.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+#include <stdbool.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <sched.h>
+
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/types.h>
+#include <sys/sendfile.h>
+
+#include <linux/netlink.h>
+#include <linux/socket.h>
+#include <linux/sock_diag.h>
+#include <linux/bpf.h>
+#include <linux/if_link.h>
+#include <assert.h>
+#include <libgen.h>
+
+#include <getopt.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include "bpf_util.h"
+#include "bpf_rlimit.h"
+#include "cgroup_helpers.h"
+
+int running;
+static void running_handler(int a);
+
+/* randomly selected ports for testing on lo */
+#define S1_PORT 10000
+#define S2_PORT 10001
+
+#define BPF_SOCKMAP_FILENAME "test_sockmap_kern.o"
+#define BPF_SOCKHASH_FILENAME "test_sockhash_kern.o"
+#define CG_PATH "/sockmap"
+
+/* global sockets */
+int s1, s2, c1, c2, p1, p2;
+int test_cnt;
+int passed;
+int failed;
+int map_fd[8];
+struct bpf_map *maps[8];
+int prog_fd[11];
+
+int txmsg_pass;
+int txmsg_noisy;
+int txmsg_redir;
+int txmsg_redir_noisy;
+int txmsg_drop;
+int txmsg_apply;
+int txmsg_cork;
+int txmsg_start;
+int txmsg_end;
+int txmsg_ingress;
+int txmsg_skb;
+
+static const struct option long_options[] = {
+	{"help",	no_argument,		NULL, 'h' },
+	{"cgroup",	required_argument,	NULL, 'c' },
+	{"rate",	required_argument,	NULL, 'r' },
+	{"verbose",	no_argument,		NULL, 'v' },
+	{"iov_count",	required_argument,	NULL, 'i' },
+	{"length",	required_argument,	NULL, 'l' },
+	{"test",	required_argument,	NULL, 't' },
+	{"data_test",   no_argument,		NULL, 'd' },
+	{"txmsg",		no_argument,	&txmsg_pass,  1  },
+	{"txmsg_noisy",		no_argument,	&txmsg_noisy, 1  },
+	{"txmsg_redir",		no_argument,	&txmsg_redir, 1  },
+	{"txmsg_redir_noisy",	no_argument,	&txmsg_redir_noisy, 1},
+	{"txmsg_drop",		no_argument,	&txmsg_drop, 1 },
+	{"txmsg_apply",	required_argument,	NULL, 'a'},
+	{"txmsg_cork",	required_argument,	NULL, 'k'},
+	{"txmsg_start", required_argument,	NULL, 's'},
+	{"txmsg_end",	required_argument,	NULL, 'e'},
+	{"txmsg_ingress", no_argument,		&txmsg_ingress, 1 },
+	{"txmsg_skb", no_argument,		&txmsg_skb, 1 },
+	{0, 0, NULL, 0 }
+};
+
+static void usage(char *argv[])
+{
+	int i;
+
+	printf(" Usage: %s --cgroup <cgroup_path>\n", argv[0]);
+	printf(" options:\n");
+	for (i = 0; long_options[i].name != 0; i++) {
+		printf(" --%-12s", long_options[i].name);
+		if (long_options[i].flag != NULL)
+			printf(" flag (internal value:%d)\n",
+				*long_options[i].flag);
+		else
+			printf(" -%c\n", long_options[i].val);
+	}
+	printf("\n");
+}
+
+static int sockmap_init_sockets(int verbose)
+{
+	int i, err, one = 1;
+	struct sockaddr_in addr;
+	int *fds[4] = {&s1, &s2, &c1, &c2};
+
+	s1 = s2 = p1 = p2 = c1 = c2 = 0;
+
+	/* Init sockets */
+	for (i = 0; i < 4; i++) {
+		*fds[i] = socket(AF_INET, SOCK_STREAM, 0);
+		if (*fds[i] < 0) {
+			perror("socket s1 failed()");
+			return errno;
+		}
+	}
+
+	/* Allow reuse */
+	for (i = 0; i < 2; i++) {
+		err = setsockopt(*fds[i], SOL_SOCKET, SO_REUSEADDR,
+				 (char *)&one, sizeof(one));
+		if (err) {
+			perror("setsockopt failed()");
+			return errno;
+		}
+	}
+
+	/* Non-blocking sockets */
+	for (i = 0; i < 2; i++) {
+		err = ioctl(*fds[i], FIONBIO, (char *)&one);
+		if (err < 0) {
+			perror("ioctl s1 failed()");
+			return errno;
+		}
+	}
+
+	/* Bind server sockets */
+	memset(&addr, 0, sizeof(struct sockaddr_in));
+	addr.sin_family = AF_INET;
+	addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+
+	addr.sin_port = htons(S1_PORT);
+	err = bind(s1, (struct sockaddr *)&addr, sizeof(addr));
+	if (err < 0) {
+		perror("bind s1 failed()\n");
+		return errno;
+	}
+
+	addr.sin_port = htons(S2_PORT);
+	err = bind(s2, (struct sockaddr *)&addr, sizeof(addr));
+	if (err < 0) {
+		perror("bind s2 failed()\n");
+		return errno;
+	}
+
+	/* Listen server sockets */
+	addr.sin_port = htons(S1_PORT);
+	err = listen(s1, 32);
+	if (err < 0) {
+		perror("listen s1 failed()\n");
+		return errno;
+	}
+
+	addr.sin_port = htons(S2_PORT);
+	err = listen(s2, 32);
+	if (err < 0) {
+		perror("listen s1 failed()\n");
+		return errno;
+	}
+
+	/* Initiate Connect */
+	addr.sin_port = htons(S1_PORT);
+	err = connect(c1, (struct sockaddr *)&addr, sizeof(addr));
+	if (err < 0 && errno != EINPROGRESS) {
+		perror("connect c1 failed()\n");
+		return errno;
+	}
+
+	addr.sin_port = htons(S2_PORT);
+	err = connect(c2, (struct sockaddr *)&addr, sizeof(addr));
+	if (err < 0 && errno != EINPROGRESS) {
+		perror("connect c2 failed()\n");
+		return errno;
+	} else if (err < 0) {
+		err = 0;
+	}
+
+	/* Accept Connecrtions */
+	p1 = accept(s1, NULL, NULL);
+	if (p1 < 0) {
+		perror("accept s1 failed()\n");
+		return errno;
+	}
+
+	p2 = accept(s2, NULL, NULL);
+	if (p2 < 0) {
+		perror("accept s1 failed()\n");
+		return errno;
+	}
+
+	if (verbose) {
+		printf("connected sockets: c1 <-> p1, c2 <-> p2\n");
+		printf("cgroups binding: c1(%i) <-> s1(%i) - - - c2(%i) <-> s2(%i)\n",
+			c1, s1, c2, s2);
+	}
+	return 0;
+}
+
+struct msg_stats {
+	size_t bytes_sent;
+	size_t bytes_recvd;
+	struct timespec start;
+	struct timespec end;
+};
+
+struct sockmap_options {
+	int verbose;
+	bool base;
+	bool sendpage;
+	bool data_test;
+	bool drop_expected;
+	int iov_count;
+	int iov_length;
+	int rate;
+};
+
+static int msg_loop_sendpage(int fd, int iov_length, int cnt,
+			     struct msg_stats *s,
+			     struct sockmap_options *opt)
+{
+	bool drop = opt->drop_expected;
+	unsigned char k = 0;
+	FILE *file;
+	int i, fp;
+
+	file = fopen(".sendpage_tst.tmp", "w+");
+	if (!file) {
+		perror("create file for sendpage");
+		return 1;
+	}
+	for (i = 0; i < iov_length * cnt; i++, k++)
+		fwrite(&k, sizeof(char), 1, file);
+	fflush(file);
+	fseek(file, 0, SEEK_SET);
+	fclose(file);
+
+	fp = open(".sendpage_tst.tmp", O_RDONLY);
+	if (fp < 0) {
+		perror("reopen file for sendpage");
+		return 1;
+	}
+
+	clock_gettime(CLOCK_MONOTONIC, &s->start);
+	for (i = 0; i < cnt; i++) {
+		int sent = sendfile(fd, fp, NULL, iov_length);
+
+		if (!drop && sent < 0) {
+			perror("send loop error:");
+			close(fp);
+			return sent;
+		} else if (drop && sent >= 0) {
+			printf("sendpage loop error expected: %i\n", sent);
+			close(fp);
+			return -EIO;
+		}
+
+		if (sent > 0)
+			s->bytes_sent += sent;
+	}
+	clock_gettime(CLOCK_MONOTONIC, &s->end);
+	close(fp);
+	return 0;
+}
+
+static int msg_loop(int fd, int iov_count, int iov_length, int cnt,
+		    struct msg_stats *s, bool tx,
+		    struct sockmap_options *opt)
+{
+	struct msghdr msg = {0};
+	int err, i, flags = MSG_NOSIGNAL;
+	struct iovec *iov;
+	unsigned char k;
+	bool data_test = opt->data_test;
+	bool drop = opt->drop_expected;
+
+	iov = calloc(iov_count, sizeof(struct iovec));
+	if (!iov)
+		return errno;
+
+	k = 0;
+	for (i = 0; i < iov_count; i++) {
+		unsigned char *d = calloc(iov_length, sizeof(char));
+
+		if (!d) {
+			fprintf(stderr, "iov_count %i/%i OOM\n", i, iov_count);
+			goto out_errno;
+		}
+		iov[i].iov_base = d;
+		iov[i].iov_len = iov_length;
+
+		if (data_test && tx) {
+			int j;
+
+			for (j = 0; j < iov_length; j++)
+				d[j] = k++;
+		}
+	}
+
+	msg.msg_iov = iov;
+	msg.msg_iovlen = iov_count;
+	k = 0;
+
+	if (tx) {
+		clock_gettime(CLOCK_MONOTONIC, &s->start);
+		for (i = 0; i < cnt; i++) {
+			int sent = sendmsg(fd, &msg, flags);
+
+			if (!drop && sent < 0) {
+				perror("send loop error:");
+				goto out_errno;
+			} else if (drop && sent >= 0) {
+				printf("send loop error expected: %i\n", sent);
+				errno = -EIO;
+				goto out_errno;
+			}
+			if (sent > 0)
+				s->bytes_sent += sent;
+		}
+		clock_gettime(CLOCK_MONOTONIC, &s->end);
+	} else {
+		int slct, recv, max_fd = fd;
+		int fd_flags = O_NONBLOCK;
+		struct timeval timeout;
+		float total_bytes;
+		int bytes_cnt = 0;
+		int chunk_sz;
+		fd_set w;
+
+		if (opt->sendpage)
+			chunk_sz = iov_length * cnt;
+		else
+			chunk_sz = iov_length * iov_count;
+
+		fcntl(fd, fd_flags);
+		total_bytes = (float)iov_count * (float)iov_length * (float)cnt;
+		err = clock_gettime(CLOCK_MONOTONIC, &s->start);
+		if (err < 0)
+			perror("recv start time: ");
+		while (s->bytes_recvd < total_bytes) {
+			if (txmsg_cork) {
+				timeout.tv_sec = 0;
+				timeout.tv_usec = 300000;
+			} else {
+				timeout.tv_sec = 1;
+				timeout.tv_usec = 0;
+			}
+
+			/* FD sets */
+			FD_ZERO(&w);
+			FD_SET(fd, &w);
+
+			slct = select(max_fd + 1, &w, NULL, NULL, &timeout);
+			if (slct == -1) {
+				perror("select()");
+				clock_gettime(CLOCK_MONOTONIC, &s->end);
+				goto out_errno;
+			} else if (!slct) {
+				if (opt->verbose)
+					fprintf(stderr, "unexpected timeout\n");
+				errno = -EIO;
+				clock_gettime(CLOCK_MONOTONIC, &s->end);
+				goto out_errno;
+			}
+
+			recv = recvmsg(fd, &msg, flags);
+			if (recv < 0) {
+				if (errno != EWOULDBLOCK) {
+					clock_gettime(CLOCK_MONOTONIC, &s->end);
+					perror("recv failed()\n");
+					goto out_errno;
+				}
+			}
+
+			s->bytes_recvd += recv;
+
+			if (data_test) {
+				int j;
+
+				for (i = 0; i < msg.msg_iovlen; i++) {
+					unsigned char *d = iov[i].iov_base;
+
+					for (j = 0;
+					     j < iov[i].iov_len && recv; j++) {
+						if (d[j] != k++) {
+							errno = -EIO;
+							fprintf(stderr,
+								"detected data corruption @iov[%i]:%i %02x != %02x, %02x ?= %02x\n",
+								i, j, d[j], k - 1, d[j+1], k);
+							goto out_errno;
+						}
+						bytes_cnt++;
+						if (bytes_cnt == chunk_sz) {
+							k = 0;
+							bytes_cnt = 0;
+						}
+						recv--;
+					}
+				}
+			}
+		}
+		clock_gettime(CLOCK_MONOTONIC, &s->end);
+	}
+
+	for (i = 0; i < iov_count; i++)
+		free(iov[i].iov_base);
+	free(iov);
+	return 0;
+out_errno:
+	for (i = 0; i < iov_count; i++)
+		free(iov[i].iov_base);
+	free(iov);
+	return errno;
+}
+
+static float giga = 1000000000;
+
+static inline float sentBps(struct msg_stats s)
+{
+	return s.bytes_sent / (s.end.tv_sec - s.start.tv_sec);
+}
+
+static inline float recvdBps(struct msg_stats s)
+{
+	return s.bytes_recvd / (s.end.tv_sec - s.start.tv_sec);
+}
+
+static int sendmsg_test(struct sockmap_options *opt)
+{
+	float sent_Bps = 0, recvd_Bps = 0;
+	int rx_fd, txpid, rxpid, err = 0;
+	struct msg_stats s = {0};
+	int iov_count = opt->iov_count;
+	int iov_buf = opt->iov_length;
+	int rx_status, tx_status;
+	int cnt = opt->rate;
+
+	errno = 0;
+
+	if (opt->base)
+		rx_fd = p1;
+	else
+		rx_fd = p2;
+
+	rxpid = fork();
+	if (rxpid == 0) {
+		if (opt->drop_expected)
+			exit(0);
+
+		if (opt->sendpage)
+			iov_count = 1;
+		err = msg_loop(rx_fd, iov_count, iov_buf,
+			       cnt, &s, false, opt);
+		if (err && opt->verbose)
+			fprintf(stderr,
+				"msg_loop_rx: iov_count %i iov_buf %i cnt %i err %i\n",
+				iov_count, iov_buf, cnt, err);
+		shutdown(p2, SHUT_RDWR);
+		shutdown(p1, SHUT_RDWR);
+		if (s.end.tv_sec - s.start.tv_sec) {
+			sent_Bps = sentBps(s);
+			recvd_Bps = recvdBps(s);
+		}
+		if (opt->verbose)
+			fprintf(stdout,
+				"rx_sendmsg: TX: %zuB %fB/s %fGB/s RX: %zuB %fB/s %fGB/s\n",
+				s.bytes_sent, sent_Bps, sent_Bps/giga,
+				s.bytes_recvd, recvd_Bps, recvd_Bps/giga);
+		if (err && txmsg_cork)
+			err = 0;
+		exit(err ? 1 : 0);
+	} else if (rxpid == -1) {
+		perror("msg_loop_rx: ");
+		return errno;
+	}
+
+	txpid = fork();
+	if (txpid == 0) {
+		if (opt->sendpage)
+			err = msg_loop_sendpage(c1, iov_buf, cnt, &s, opt);
+		else
+			err = msg_loop(c1, iov_count, iov_buf,
+				       cnt, &s, true, opt);
+
+		if (err)
+			fprintf(stderr,
+				"msg_loop_tx: iov_count %i iov_buf %i cnt %i err %i\n",
+				iov_count, iov_buf, cnt, err);
+		shutdown(c1, SHUT_RDWR);
+		if (s.end.tv_sec - s.start.tv_sec) {
+			sent_Bps = sentBps(s);
+			recvd_Bps = recvdBps(s);
+		}
+		if (opt->verbose)
+			fprintf(stdout,
+				"tx_sendmsg: TX: %zuB %fB/s %f GB/s RX: %zuB %fB/s %fGB/s\n",
+				s.bytes_sent, sent_Bps, sent_Bps/giga,
+				s.bytes_recvd, recvd_Bps, recvd_Bps/giga);
+		exit(err ? 1 : 0);
+	} else if (txpid == -1) {
+		perror("msg_loop_tx: ");
+		return errno;
+	}
+
+	assert(waitpid(rxpid, &rx_status, 0) == rxpid);
+	assert(waitpid(txpid, &tx_status, 0) == txpid);
+	if (WIFEXITED(rx_status)) {
+		err = WEXITSTATUS(rx_status);
+		if (err) {
+			fprintf(stderr, "rx thread exited with err %d. ", err);
+			goto out;
+		}
+	}
+	if (WIFEXITED(tx_status)) {
+		err = WEXITSTATUS(tx_status);
+		if (err)
+			fprintf(stderr, "tx thread exited with err %d. ", err);
+	}
+out:
+	return err;
+}
+
+static int forever_ping_pong(int rate, struct sockmap_options *opt)
+{
+	struct timeval timeout;
+	char buf[1024] = {0};
+	int sc;
+
+	timeout.tv_sec = 10;
+	timeout.tv_usec = 0;
+
+	/* Ping/Pong data from client to server */
+	sc = send(c1, buf, sizeof(buf), 0);
+	if (sc < 0) {
+		perror("send failed()\n");
+		return sc;
+	}
+
+	do {
+		int s, rc, i, max_fd = p2;
+		fd_set w;
+
+		/* FD sets */
+		FD_ZERO(&w);
+		FD_SET(c1, &w);
+		FD_SET(c2, &w);
+		FD_SET(p1, &w);
+		FD_SET(p2, &w);
+
+		s = select(max_fd + 1, &w, NULL, NULL, &timeout);
+		if (s == -1) {
+			perror("select()");
+			break;
+		} else if (!s) {
+			fprintf(stderr, "unexpected timeout\n");
+			break;
+		}
+
+		for (i = 0; i <= max_fd && s > 0; ++i) {
+			if (!FD_ISSET(i, &w))
+				continue;
+
+			s--;
+
+			rc = recv(i, buf, sizeof(buf), 0);
+			if (rc < 0) {
+				if (errno != EWOULDBLOCK) {
+					perror("recv failed()\n");
+					return rc;
+				}
+			}
+
+			if (rc == 0) {
+				close(i);
+				break;
+			}
+
+			sc = send(i, buf, rc, 0);
+			if (sc < 0) {
+				perror("send failed()\n");
+				return sc;
+			}
+		}
+
+		if (rate)
+			sleep(rate);
+
+		if (opt->verbose) {
+			printf(".");
+			fflush(stdout);
+
+		}
+	} while (running);
+
+	return 0;
+}
+
+enum {
+	PING_PONG,
+	SENDMSG,
+	BASE,
+	BASE_SENDPAGE,
+	SENDPAGE,
+};
+
+static int run_options(struct sockmap_options *options, int cg_fd,  int test)
+{
+	int i, key, next_key, err, tx_prog_fd = -1, zero = 0;
+
+	/* If base test skip BPF setup */
+	if (test == BASE || test == BASE_SENDPAGE)
+		goto run;
+
+	/* Attach programs to sockmap */
+	err = bpf_prog_attach(prog_fd[0], map_fd[0],
+				BPF_SK_SKB_STREAM_PARSER, 0);
+	if (err) {
+		fprintf(stderr,
+			"ERROR: bpf_prog_attach (sockmap %i->%i): %d (%s)\n",
+			prog_fd[0], map_fd[0], err, strerror(errno));
+		return err;
+	}
+
+	err = bpf_prog_attach(prog_fd[1], map_fd[0],
+				BPF_SK_SKB_STREAM_VERDICT, 0);
+	if (err) {
+		fprintf(stderr, "ERROR: bpf_prog_attach (sockmap): %d (%s)\n",
+			err, strerror(errno));
+		return err;
+	}
+
+	/* Attach to cgroups */
+	err = bpf_prog_attach(prog_fd[2], cg_fd, BPF_CGROUP_SOCK_OPS, 0);
+	if (err) {
+		fprintf(stderr, "ERROR: bpf_prog_attach (groups): %d (%s)\n",
+			err, strerror(errno));
+		return err;
+	}
+
+run:
+	err = sockmap_init_sockets(options->verbose);
+	if (err) {
+		fprintf(stderr, "ERROR: test socket failed: %d\n", err);
+		goto out;
+	}
+
+	/* Attach txmsg program to sockmap */
+	if (txmsg_pass)
+		tx_prog_fd = prog_fd[3];
+	else if (txmsg_noisy)
+		tx_prog_fd = prog_fd[4];
+	else if (txmsg_redir)
+		tx_prog_fd = prog_fd[5];
+	else if (txmsg_redir_noisy)
+		tx_prog_fd = prog_fd[6];
+	else if (txmsg_drop)
+		tx_prog_fd = prog_fd[9];
+	/* apply and cork must be last */
+	else if (txmsg_apply)
+		tx_prog_fd = prog_fd[7];
+	else if (txmsg_cork)
+		tx_prog_fd = prog_fd[8];
+	else
+		tx_prog_fd = 0;
+
+	if (tx_prog_fd) {
+		int redir_fd, i = 0;
+
+		err = bpf_prog_attach(tx_prog_fd,
+				      map_fd[1], BPF_SK_MSG_VERDICT, 0);
+		if (err) {
+			fprintf(stderr,
+				"ERROR: bpf_prog_attach (txmsg): %d (%s)\n",
+				err, strerror(errno));
+			goto out;
+		}
+
+		err = bpf_map_update_elem(map_fd[1], &i, &c1, BPF_ANY);
+		if (err) {
+			fprintf(stderr,
+				"ERROR: bpf_map_update_elem (txmsg):  %d (%s\n",
+				err, strerror(errno));
+			goto out;
+		}
+
+		if (txmsg_redir || txmsg_redir_noisy)
+			redir_fd = c2;
+		else
+			redir_fd = c1;
+
+		err = bpf_map_update_elem(map_fd[2], &i, &redir_fd, BPF_ANY);
+		if (err) {
+			fprintf(stderr,
+				"ERROR: bpf_map_update_elem (txmsg):  %d (%s\n",
+				err, strerror(errno));
+			goto out;
+		}
+
+		if (txmsg_apply) {
+			err = bpf_map_update_elem(map_fd[3],
+						  &i, &txmsg_apply, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (apply_bytes):  %d (%s\n",
+					err, strerror(errno));
+				goto out;
+			}
+		}
+
+		if (txmsg_cork) {
+			err = bpf_map_update_elem(map_fd[4],
+						  &i, &txmsg_cork, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (cork_bytes):  %d (%s\n",
+					err, strerror(errno));
+				goto out;
+			}
+		}
+
+		if (txmsg_start) {
+			err = bpf_map_update_elem(map_fd[5],
+						  &i, &txmsg_start, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (txmsg_start):  %d (%s)\n",
+					err, strerror(errno));
+				goto out;
+			}
+		}
+
+		if (txmsg_end) {
+			i = 1;
+			err = bpf_map_update_elem(map_fd[5],
+						  &i, &txmsg_end, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (txmsg_end):  %d (%s)\n",
+					err, strerror(errno));
+				goto out;
+			}
+		}
+
+		if (txmsg_ingress) {
+			int in = BPF_F_INGRESS;
+
+			i = 0;
+			err = bpf_map_update_elem(map_fd[6], &i, &in, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (txmsg_ingress): %d (%s)\n",
+					err, strerror(errno));
+			}
+			i = 1;
+			err = bpf_map_update_elem(map_fd[1], &i, &p1, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (p1 txmsg): %d (%s)\n",
+					err, strerror(errno));
+			}
+			err = bpf_map_update_elem(map_fd[2], &i, &p1, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (p1 redir): %d (%s)\n",
+					err, strerror(errno));
+			}
+
+			i = 2;
+			err = bpf_map_update_elem(map_fd[2], &i, &p2, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (p2 txmsg): %d (%s)\n",
+					err, strerror(errno));
+			}
+		}
+
+		if (txmsg_skb) {
+			int skb_fd = (test == SENDMSG || test == SENDPAGE) ?
+					p2 : p1;
+			int ingress = BPF_F_INGRESS;
+
+			i = 0;
+			err = bpf_map_update_elem(map_fd[7],
+						  &i, &ingress, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (txmsg_ingress): %d (%s)\n",
+					err, strerror(errno));
+			}
+
+			i = 3;
+			err = bpf_map_update_elem(map_fd[0],
+						  &i, &skb_fd, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (c1 sockmap): %d (%s)\n",
+					err, strerror(errno));
+			}
+		}
+	}
+
+	if (txmsg_drop)
+		options->drop_expected = true;
+
+	if (test == PING_PONG)
+		err = forever_ping_pong(options->rate, options);
+	else if (test == SENDMSG) {
+		options->base = false;
+		options->sendpage = false;
+		err = sendmsg_test(options);
+	} else if (test == SENDPAGE) {
+		options->base = false;
+		options->sendpage = true;
+		err = sendmsg_test(options);
+	} else if (test == BASE) {
+		options->base = true;
+		options->sendpage = false;
+		err = sendmsg_test(options);
+	} else if (test == BASE_SENDPAGE) {
+		options->base = true;
+		options->sendpage = true;
+		err = sendmsg_test(options);
+	} else
+		fprintf(stderr, "unknown test\n");
+out:
+	/* Detatch and zero all the maps */
+	bpf_prog_detach2(prog_fd[2], cg_fd, BPF_CGROUP_SOCK_OPS);
+	bpf_prog_detach2(prog_fd[0], map_fd[0], BPF_SK_SKB_STREAM_PARSER);
+	bpf_prog_detach2(prog_fd[1], map_fd[0], BPF_SK_SKB_STREAM_VERDICT);
+	if (tx_prog_fd >= 0)
+		bpf_prog_detach2(tx_prog_fd, map_fd[1], BPF_SK_MSG_VERDICT);
+
+	for (i = 0; i < 8; i++) {
+		key = next_key = 0;
+		bpf_map_update_elem(map_fd[i], &key, &zero, BPF_ANY);
+		while (bpf_map_get_next_key(map_fd[i], &key, &next_key) == 0) {
+			bpf_map_update_elem(map_fd[i], &key, &zero, BPF_ANY);
+			key = next_key;
+		}
+	}
+
+	close(s1);
+	close(s2);
+	close(p1);
+	close(p2);
+	close(c1);
+	close(c2);
+	return err;
+}
+
+static char *test_to_str(int test)
+{
+	switch (test) {
+	case SENDMSG:
+		return "sendmsg";
+	case SENDPAGE:
+		return "sendpage";
+	}
+	return "unknown";
+}
+
+#define OPTSTRING 60
+static void test_options(char *options)
+{
+	char tstr[OPTSTRING];
+
+	memset(options, 0, OPTSTRING);
+
+	if (txmsg_pass)
+		strncat(options, "pass,", OPTSTRING);
+	if (txmsg_noisy)
+		strncat(options, "pass_noisy,", OPTSTRING);
+	if (txmsg_redir)
+		strncat(options, "redir,", OPTSTRING);
+	if (txmsg_redir_noisy)
+		strncat(options, "redir_noisy,", OPTSTRING);
+	if (txmsg_drop)
+		strncat(options, "drop,", OPTSTRING);
+	if (txmsg_apply) {
+		snprintf(tstr, OPTSTRING, "apply %d,", txmsg_apply);
+		strncat(options, tstr, OPTSTRING);
+	}
+	if (txmsg_cork) {
+		snprintf(tstr, OPTSTRING, "cork %d,", txmsg_cork);
+		strncat(options, tstr, OPTSTRING);
+	}
+	if (txmsg_start) {
+		snprintf(tstr, OPTSTRING, "start %d,", txmsg_start);
+		strncat(options, tstr, OPTSTRING);
+	}
+	if (txmsg_end) {
+		snprintf(tstr, OPTSTRING, "end %d,", txmsg_end);
+		strncat(options, tstr, OPTSTRING);
+	}
+	if (txmsg_ingress)
+		strncat(options, "ingress,", OPTSTRING);
+	if (txmsg_skb)
+		strncat(options, "skb,", OPTSTRING);
+}
+
+static int __test_exec(int cgrp, int test, struct sockmap_options *opt)
+{
+	char *options = calloc(OPTSTRING, sizeof(char));
+	int err;
+
+	if (test == SENDPAGE)
+		opt->sendpage = true;
+	else
+		opt->sendpage = false;
+
+	if (txmsg_drop)
+		opt->drop_expected = true;
+	else
+		opt->drop_expected = false;
+
+	test_options(options);
+
+	fprintf(stdout,
+		"[TEST %i]: (%i, %i, %i, %s, %s): ",
+		test_cnt, opt->rate, opt->iov_count, opt->iov_length,
+		test_to_str(test), options);
+	fflush(stdout);
+	err = run_options(opt, cgrp, test);
+	fprintf(stdout, "%s\n", !err ? "PASS" : "FAILED");
+	test_cnt++;
+	!err ? passed++ : failed++;
+	free(options);
+	return err;
+}
+
+static int test_exec(int cgrp, struct sockmap_options *opt)
+{
+	int err = __test_exec(cgrp, SENDMSG, opt);
+
+	if (err)
+		goto out;
+
+	err = __test_exec(cgrp, SENDPAGE, opt);
+out:
+	return err;
+}
+
+static int test_loop(int cgrp)
+{
+	struct sockmap_options opt;
+
+	int err, i, l, r;
+
+	opt.verbose = 0;
+	opt.base = false;
+	opt.sendpage = false;
+	opt.data_test = false;
+	opt.drop_expected = false;
+	opt.iov_count = 0;
+	opt.iov_length = 0;
+	opt.rate = 0;
+
+	r = 1;
+	for (i = 1; i < 100; i += 33) {
+		for (l = 1; l < 100; l += 33) {
+			opt.rate = r;
+			opt.iov_count = i;
+			opt.iov_length = l;
+			err = test_exec(cgrp, &opt);
+			if (err)
+				goto out;
+		}
+	}
+	sched_yield();
+out:
+	return err;
+}
+
+static int test_txmsg(int cgrp)
+{
+	int err;
+
+	txmsg_pass = txmsg_noisy = txmsg_redir_noisy = txmsg_drop = 0;
+	txmsg_apply = txmsg_cork = 0;
+	txmsg_ingress = txmsg_skb = 0;
+
+	txmsg_pass = 1;
+	err = test_loop(cgrp);
+	txmsg_pass = 0;
+	if (err)
+		goto out;
+
+	txmsg_redir = 1;
+	err = test_loop(cgrp);
+	txmsg_redir = 0;
+	if (err)
+		goto out;
+
+	txmsg_drop = 1;
+	err = test_loop(cgrp);
+	txmsg_drop = 0;
+	if (err)
+		goto out;
+
+	txmsg_redir = 1;
+	txmsg_ingress = 1;
+	err = test_loop(cgrp);
+	txmsg_redir = 0;
+	txmsg_ingress = 0;
+	if (err)
+		goto out;
+out:
+	txmsg_pass = 0;
+	txmsg_redir = 0;
+	txmsg_drop = 0;
+	return err;
+}
+
+static int test_send(struct sockmap_options *opt, int cgrp)
+{
+	int err;
+
+	opt->iov_length = 1;
+	opt->iov_count = 1;
+	opt->rate = 1;
+	err = test_exec(cgrp, opt);
+	if (err)
+		goto out;
+
+	opt->iov_length = 1;
+	opt->iov_count = 1024;
+	opt->rate = 1;
+	err = test_exec(cgrp, opt);
+	if (err)
+		goto out;
+
+	opt->iov_length = 1024;
+	opt->iov_count = 1;
+	opt->rate = 1;
+	err = test_exec(cgrp, opt);
+	if (err)
+		goto out;
+
+	opt->iov_length = 1;
+	opt->iov_count = 1;
+	opt->rate = 512;
+	err = test_exec(cgrp, opt);
+	if (err)
+		goto out;
+
+	opt->iov_length = 256;
+	opt->iov_count = 1024;
+	opt->rate = 2;
+	err = test_exec(cgrp, opt);
+	if (err)
+		goto out;
+
+	opt->rate = 100;
+	opt->iov_count = 1;
+	opt->iov_length = 5;
+	err = test_exec(cgrp, opt);
+	if (err)
+		goto out;
+out:
+	sched_yield();
+	return err;
+}
+
+static int test_mixed(int cgrp)
+{
+	struct sockmap_options opt = {0};
+	int err;
+
+	txmsg_pass = txmsg_noisy = txmsg_redir_noisy = txmsg_drop = 0;
+	txmsg_apply = txmsg_cork = 0;
+	txmsg_start = txmsg_end = 0;
+	/* Test small and large iov_count values with pass/redir/apply/cork */
+	txmsg_pass = 1;
+	txmsg_redir = 0;
+	txmsg_apply = 1;
+	txmsg_cork = 0;
+	err = test_send(&opt, cgrp);
+	if (err)
+		goto out;
+
+	txmsg_pass = 1;
+	txmsg_redir = 0;
+	txmsg_apply = 0;
+	txmsg_cork = 1;
+	err = test_send(&opt, cgrp);
+	if (err)
+		goto out;
+
+	txmsg_pass = 1;
+	txmsg_redir = 0;
+	txmsg_apply = 1;
+	txmsg_cork = 1;
+	err = test_send(&opt, cgrp);
+	if (err)
+		goto out;
+
+	txmsg_pass = 1;
+	txmsg_redir = 0;
+	txmsg_apply = 1024;
+	txmsg_cork = 0;
+	err = test_send(&opt, cgrp);
+	if (err)
+		goto out;
+
+	txmsg_pass = 1;
+	txmsg_redir = 0;
+	txmsg_apply = 0;
+	txmsg_cork = 1024;
+	err = test_send(&opt, cgrp);
+	if (err)
+		goto out;
+
+	txmsg_pass = 1;
+	txmsg_redir = 0;
+	txmsg_apply = 1024;
+	txmsg_cork = 1024;
+	err = test_send(&opt, cgrp);
+	if (err)
+		goto out;
+
+	txmsg_pass = 1;
+	txmsg_redir = 0;
+	txmsg_cork = 4096;
+	txmsg_apply = 4096;
+	err = test_send(&opt, cgrp);
+	if (err)
+		goto out;
+
+	txmsg_pass = 0;
+	txmsg_redir = 1;
+	txmsg_apply = 1;
+	txmsg_cork = 0;
+	err = test_send(&opt, cgrp);
+	if (err)
+		goto out;
+
+	txmsg_pass = 0;
+	txmsg_redir = 1;
+	txmsg_apply = 0;
+	txmsg_cork = 1;
+	err = test_send(&opt, cgrp);
+	if (err)
+		goto out;
+
+	txmsg_pass = 0;
+	txmsg_redir = 1;
+	txmsg_apply = 1024;
+	txmsg_cork = 0;
+	err = test_send(&opt, cgrp);
+	if (err)
+		goto out;
+
+	txmsg_pass = 0;
+	txmsg_redir = 1;
+	txmsg_apply = 0;
+	txmsg_cork = 1024;
+	err = test_send(&opt, cgrp);
+	if (err)
+		goto out;
+
+	txmsg_pass = 0;
+	txmsg_redir = 1;
+	txmsg_apply = 1024;
+	txmsg_cork = 1024;
+	err = test_send(&opt, cgrp);
+	if (err)
+		goto out;
+
+	txmsg_pass = 0;
+	txmsg_redir = 1;
+	txmsg_cork = 4096;
+	txmsg_apply = 4096;
+	err = test_send(&opt, cgrp);
+	if (err)
+		goto out;
+out:
+	return err;
+}
+
+static int test_start_end(int cgrp)
+{
+	struct sockmap_options opt = {0};
+	int err, i;
+
+	/* Test basic start/end with lots of iov_count and iov_lengths */
+	txmsg_start = 1;
+	txmsg_end = 2;
+	err = test_txmsg(cgrp);
+	if (err)
+		goto out;
+
+	/* Test start/end with cork */
+	opt.rate = 16;
+	opt.iov_count = 1;
+	opt.iov_length = 100;
+	txmsg_cork = 1600;
+
+	for (i = 99; i <= 1600; i += 500) {
+		txmsg_start = 0;
+		txmsg_end = i;
+		err = test_exec(cgrp, &opt);
+		if (err)
+			goto out;
+	}
+
+	/* Test start/end with cork but pull data in middle */
+	for (i = 199; i <= 1600; i += 500) {
+		txmsg_start = 100;
+		txmsg_end = i;
+		err = test_exec(cgrp, &opt);
+		if (err)
+			goto out;
+	}
+
+	/* Test start/end with cork pulling last sg entry */
+	txmsg_start = 1500;
+	txmsg_end = 1600;
+	err = test_exec(cgrp, &opt);
+	if (err)
+		goto out;
+
+	/* Test start/end pull of single byte in last page */
+	txmsg_start = 1111;
+	txmsg_end = 1112;
+	err = test_exec(cgrp, &opt);
+	if (err)
+		goto out;
+
+	/* Test start/end with end < start */
+	txmsg_start = 1111;
+	txmsg_end = 0;
+	err = test_exec(cgrp, &opt);
+	if (err)
+		goto out;
+
+	/* Test start/end with end > data */
+	txmsg_start = 0;
+	txmsg_end = 1601;
+	err = test_exec(cgrp, &opt);
+	if (err)
+		goto out;
+
+	/* Test start/end with start > data */
+	txmsg_start = 1601;
+	txmsg_end = 1600;
+	err = test_exec(cgrp, &opt);
+
+out:
+	txmsg_start = 0;
+	txmsg_end = 0;
+	sched_yield();
+	return err;
+}
+
+char *map_names[] = {
+	"sock_map",
+	"sock_map_txmsg",
+	"sock_map_redir",
+	"sock_apply_bytes",
+	"sock_cork_bytes",
+	"sock_pull_bytes",
+	"sock_redir_flags",
+	"sock_skb_opts",
+};
+
+int prog_attach_type[] = {
+	BPF_SK_SKB_STREAM_PARSER,
+	BPF_SK_SKB_STREAM_VERDICT,
+	BPF_CGROUP_SOCK_OPS,
+	BPF_SK_MSG_VERDICT,
+	BPF_SK_MSG_VERDICT,
+	BPF_SK_MSG_VERDICT,
+	BPF_SK_MSG_VERDICT,
+	BPF_SK_MSG_VERDICT,
+	BPF_SK_MSG_VERDICT,
+	BPF_SK_MSG_VERDICT,
+};
+
+int prog_type[] = {
+	BPF_PROG_TYPE_SK_SKB,
+	BPF_PROG_TYPE_SK_SKB,
+	BPF_PROG_TYPE_SOCK_OPS,
+	BPF_PROG_TYPE_SK_MSG,
+	BPF_PROG_TYPE_SK_MSG,
+	BPF_PROG_TYPE_SK_MSG,
+	BPF_PROG_TYPE_SK_MSG,
+	BPF_PROG_TYPE_SK_MSG,
+	BPF_PROG_TYPE_SK_MSG,
+	BPF_PROG_TYPE_SK_MSG,
+};
+
+static int populate_progs(char *bpf_file)
+{
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	int i = 0;
+	long err;
+
+	obj = bpf_object__open(bpf_file);
+	err = libbpf_get_error(obj);
+	if (err) {
+		char err_buf[256];
+
+		libbpf_strerror(err, err_buf, sizeof(err_buf));
+		printf("Unable to load eBPF objects in file '%s' : %s\n",
+		       bpf_file, err_buf);
+		return -1;
+	}
+
+	bpf_object__for_each_program(prog, obj) {
+		bpf_program__set_type(prog, prog_type[i]);
+		bpf_program__set_expected_attach_type(prog,
+						      prog_attach_type[i]);
+		i++;
+	}
+
+	i = bpf_object__load(obj);
+	i = 0;
+	bpf_object__for_each_program(prog, obj) {
+		prog_fd[i] = bpf_program__fd(prog);
+		i++;
+	}
+
+	for (i = 0; i < sizeof(map_fd)/sizeof(int); i++) {
+		maps[i] = bpf_object__find_map_by_name(obj, map_names[i]);
+		map_fd[i] = bpf_map__fd(maps[i]);
+		if (map_fd[i] < 0) {
+			fprintf(stderr, "load_bpf_file: (%i) %s\n",
+				map_fd[i], strerror(errno));
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+static int __test_suite(char *bpf_file)
+{
+	int cg_fd, err;
+
+	err = populate_progs(bpf_file);
+	if (err < 0) {
+		fprintf(stderr, "ERROR: (%i) load bpf failed\n", err);
+		return err;
+	}
+
+	if (setup_cgroup_environment()) {
+		fprintf(stderr, "ERROR: cgroup env failed\n");
+		return -EINVAL;
+	}
+
+	cg_fd = create_and_get_cgroup(CG_PATH);
+	if (cg_fd < 0) {
+		fprintf(stderr,
+			"ERROR: (%i) open cg path failed: %s\n",
+			cg_fd, optarg);
+		return cg_fd;
+	}
+
+	if (join_cgroup(CG_PATH)) {
+		fprintf(stderr, "ERROR: failed to join cgroup\n");
+		return -EINVAL;
+	}
+
+	/* Tests basic commands and APIs with range of iov values */
+	txmsg_start = txmsg_end = 0;
+	err = test_txmsg(cg_fd);
+	if (err)
+		goto out;
+
+	/* Tests interesting combinations of APIs used together */
+	err = test_mixed(cg_fd);
+	if (err)
+		goto out;
+
+	/* Tests pull_data API using start/end API */
+	err = test_start_end(cg_fd);
+	if (err)
+		goto out;
+
+out:
+	printf("Summary: %i PASSED %i FAILED\n", passed, failed);
+	cleanup_cgroup_environment();
+	close(cg_fd);
+	return err;
+}
+
+static int test_suite(void)
+{
+	int err;
+
+	err = __test_suite(BPF_SOCKMAP_FILENAME);
+	if (err)
+		goto out;
+	err = __test_suite(BPF_SOCKHASH_FILENAME);
+out:
+	return err;
+}
+
+int main(int argc, char **argv)
+{
+	int iov_count = 1, length = 1024, rate = 1;
+	struct sockmap_options options = {0};
+	int opt, longindex, err, cg_fd = 0;
+	char *bpf_file = BPF_SOCKMAP_FILENAME;
+	int test = PING_PONG;
+
+	if (argc < 2)
+		return test_suite();
+
+	while ((opt = getopt_long(argc, argv, ":dhvc:r:i:l:t:",
+				  long_options, &longindex)) != -1) {
+		switch (opt) {
+		case 's':
+			txmsg_start = atoi(optarg);
+			break;
+		case 'e':
+			txmsg_end = atoi(optarg);
+			break;
+		case 'a':
+			txmsg_apply = atoi(optarg);
+			break;
+		case 'k':
+			txmsg_cork = atoi(optarg);
+			break;
+		case 'c':
+			cg_fd = open(optarg, O_DIRECTORY, O_RDONLY);
+			if (cg_fd < 0) {
+				fprintf(stderr,
+					"ERROR: (%i) open cg path failed: %s\n",
+					cg_fd, optarg);
+				return cg_fd;
+			}
+			break;
+		case 'r':
+			rate = atoi(optarg);
+			break;
+		case 'v':
+			options.verbose = 1;
+			break;
+		case 'i':
+			iov_count = atoi(optarg);
+			break;
+		case 'l':
+			length = atoi(optarg);
+			break;
+		case 'd':
+			options.data_test = true;
+			break;
+		case 't':
+			if (strcmp(optarg, "ping") == 0) {
+				test = PING_PONG;
+			} else if (strcmp(optarg, "sendmsg") == 0) {
+				test = SENDMSG;
+			} else if (strcmp(optarg, "base") == 0) {
+				test = BASE;
+			} else if (strcmp(optarg, "base_sendpage") == 0) {
+				test = BASE_SENDPAGE;
+			} else if (strcmp(optarg, "sendpage") == 0) {
+				test = SENDPAGE;
+			} else {
+				usage(argv);
+				return -1;
+			}
+			break;
+		case 0:
+			break;
+		case 'h':
+		default:
+			usage(argv);
+			return -1;
+		}
+	}
+
+	if (!cg_fd) {
+		fprintf(stderr, "%s requires cgroup option: --cgroup <path>\n",
+			argv[0]);
+		return -1;
+	}
+
+	err = populate_progs(bpf_file);
+	if (err) {
+		fprintf(stderr, "populate program: (%s) %s\n",
+			bpf_file, strerror(errno));
+		return 1;
+	}
+	running = 1;
+
+	/* catch SIGINT */
+	signal(SIGINT, running_handler);
+
+	options.iov_count = iov_count;
+	options.iov_length = length;
+	options.rate = rate;
+
+	err = run_options(&options, cg_fd, test);
+	close(cg_fd);
+	return err;
+}
+
+void running_handler(int a)
+{
+	running = 0;
+}