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-rw-r--r--tools/testing/selftests/bpf/test_sockmap.c1524
1 files changed, 1524 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 000000000000..05c8cb71724a
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_sockmap.c
@@ -0,0 +1,1524 @@
+// 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+");
+ 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);
+ 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 = 1000;
+ } 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)
+{
+ struct rlimit r = {10 * 1024 * 1024, RLIM_INFINITY};
+ 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 (setrlimit(RLIMIT_MEMLOCK, &r)) {
+ perror("setrlimit(RLIMIT_MEMLOCK)");
+ return 1;
+ }
+
+ 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;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 12:52:26 +0100