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87caaaf2d1
Dan reported: The patchacda655fef
: "selftests: Add nettest" from Aug 1, 2019, leads to the following static checker warning: ./tools/testing/selftests/net/nettest.c:1690 main() warn: unsigned 'tmp' is never less than zero. ./tools/testing/selftests/net/nettest.c 1680 case '1': 1681 args.has_expected_raddr = 1; 1682 if (convert_addr(&args, optarg, 1683 ADDR_TYPE_EXPECTED_REMOTE)) 1684 return 1; 1685 1686 break; 1687 case '2': 1688 if (str_to_uint(optarg, 0, 0x7ffffff, &tmp) != 0) { 1689 tmp = get_ifidx(optarg); 1690 if (tmp < 0) { "tmp" is unsigned so it can't be negative. Also all the callers assume that get_ifidx() returns negatives on error but it looks like it really returns zero on error so it's a bit unclear to me. Update get_ifidx to return -1 on errors and cleanup callers of it. Fixes:acda655fef
("selftests: Add nettest") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
1758 lines
34 KiB
C
1758 lines
34 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* nettest - used for functional tests of networking APIs
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*
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* Copyright (c) 2013-2019 David Ahern <dsahern@gmail.com>. All rights reserved.
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*/
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#define _GNU_SOURCE
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#include <features.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <linux/tcp.h>
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#include <arpa/inet.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#include <fcntl.h>
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#include <libgen.h>
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#include <limits.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <time.h>
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#include <errno.h>
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#ifndef IPV6_UNICAST_IF
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#define IPV6_UNICAST_IF 76
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#endif
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#ifndef IPV6_MULTICAST_IF
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#define IPV6_MULTICAST_IF 17
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#endif
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#define DEFAULT_PORT 12345
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#ifndef MAX
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#define MAX(a, b) ((a) > (b) ? (a) : (b))
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#endif
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#ifndef MIN
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#define MIN(a, b) ((a) < (b) ? (a) : (b))
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#endif
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struct sock_args {
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/* local address */
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union {
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struct in_addr in;
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struct in6_addr in6;
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} local_addr;
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/* remote address */
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union {
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struct in_addr in;
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struct in6_addr in6;
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} remote_addr;
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int scope_id; /* remote scope; v6 send only */
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struct in_addr grp; /* multicast group */
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unsigned int has_local_ip:1,
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has_remote_ip:1,
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has_grp:1,
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has_expected_laddr:1,
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has_expected_raddr:1,
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bind_test_only:1;
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unsigned short port;
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int type; /* DGRAM, STREAM, RAW */
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int protocol;
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int version; /* AF_INET/AF_INET6 */
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int use_setsockopt;
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int use_cmsg;
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const char *dev;
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int ifindex;
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const char *password;
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/* expected addresses and device index for connection */
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int expected_ifindex;
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/* local address */
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union {
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struct in_addr in;
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struct in6_addr in6;
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} expected_laddr;
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/* remote address */
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union {
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struct in_addr in;
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struct in6_addr in6;
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} expected_raddr;
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};
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static int server_mode;
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static unsigned int prog_timeout = 5;
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static unsigned int interactive;
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static int iter = 1;
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static char *msg = "Hello world!";
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static int msglen;
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static int quiet;
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static int try_broadcast = 1;
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static char *timestamp(char *timebuf, int buflen)
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{
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time_t now;
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now = time(NULL);
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if (strftime(timebuf, buflen, "%T", localtime(&now)) == 0) {
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memset(timebuf, 0, buflen);
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strncpy(timebuf, "00:00:00", buflen-1);
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}
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return timebuf;
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}
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static void log_msg(const char *format, ...)
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{
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char timebuf[64];
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va_list args;
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if (quiet)
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return;
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fprintf(stdout, "%s %s:",
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timestamp(timebuf, sizeof(timebuf)),
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server_mode ? "server" : "client");
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va_start(args, format);
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vfprintf(stdout, format, args);
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va_end(args);
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fflush(stdout);
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}
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static void log_error(const char *format, ...)
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{
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char timebuf[64];
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va_list args;
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if (quiet)
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return;
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fprintf(stderr, "%s %s:",
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timestamp(timebuf, sizeof(timebuf)),
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server_mode ? "server" : "client");
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va_start(args, format);
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vfprintf(stderr, format, args);
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va_end(args);
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fflush(stderr);
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}
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static void log_err_errno(const char *fmt, ...)
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{
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char timebuf[64];
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va_list args;
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if (quiet)
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return;
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fprintf(stderr, "%s %s: ",
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timestamp(timebuf, sizeof(timebuf)),
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server_mode ? "server" : "client");
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va_start(args, fmt);
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vfprintf(stderr, fmt, args);
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va_end(args);
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fprintf(stderr, ": %d: %s\n", errno, strerror(errno));
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fflush(stderr);
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}
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static void log_address(const char *desc, struct sockaddr *sa)
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{
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char addrstr[64];
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if (quiet)
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return;
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if (sa->sa_family == AF_INET) {
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struct sockaddr_in *s = (struct sockaddr_in *) sa;
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log_msg("%s %s:%d",
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desc,
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inet_ntop(AF_INET, &s->sin_addr, addrstr,
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sizeof(addrstr)),
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ntohs(s->sin_port));
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} else if (sa->sa_family == AF_INET6) {
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struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) sa;
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log_msg("%s [%s]:%d",
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desc,
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inet_ntop(AF_INET6, &s6->sin6_addr, addrstr,
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sizeof(addrstr)),
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ntohs(s6->sin6_port));
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}
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printf("\n");
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fflush(stdout);
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}
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static int tcp_md5sig(int sd, void *addr, socklen_t alen, const char *password)
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{
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struct tcp_md5sig md5sig;
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int keylen = password ? strlen(password) : 0;
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int rc;
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memset(&md5sig, 0, sizeof(md5sig));
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memcpy(&md5sig.tcpm_addr, addr, alen);
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md5sig.tcpm_keylen = keylen;
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if (keylen)
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memcpy(md5sig.tcpm_key, password, keylen);
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rc = setsockopt(sd, IPPROTO_TCP, TCP_MD5SIG, &md5sig, sizeof(md5sig));
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if (rc < 0) {
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/* ENOENT is harmless. Returned when a password is cleared */
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if (errno == ENOENT)
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rc = 0;
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else
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log_err_errno("setsockopt(TCP_MD5SIG)");
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}
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return rc;
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}
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static int tcp_md5_remote(int sd, struct sock_args *args)
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{
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struct sockaddr_in sin = {
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.sin_family = AF_INET,
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};
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struct sockaddr_in6 sin6 = {
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.sin6_family = AF_INET6,
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};
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void *addr;
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int alen;
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switch (args->version) {
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case AF_INET:
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sin.sin_port = htons(args->port);
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sin.sin_addr = args->remote_addr.in;
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addr = &sin;
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alen = sizeof(sin);
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break;
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case AF_INET6:
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sin6.sin6_port = htons(args->port);
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sin6.sin6_addr = args->remote_addr.in6;
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addr = &sin6;
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alen = sizeof(sin6);
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break;
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default:
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log_error("unknown address family\n");
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exit(1);
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}
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if (tcp_md5sig(sd, addr, alen, args->password))
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return -1;
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return 0;
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}
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static int get_ifidx(const char *ifname)
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{
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struct ifreq ifdata;
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int sd, rc;
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if (!ifname || *ifname == '\0')
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return -1;
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memset(&ifdata, 0, sizeof(ifdata));
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strcpy(ifdata.ifr_name, ifname);
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sd = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
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if (sd < 0) {
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log_err_errno("socket failed");
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return -1;
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}
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rc = ioctl(sd, SIOCGIFINDEX, (char *)&ifdata);
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close(sd);
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if (rc != 0) {
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log_err_errno("ioctl(SIOCGIFINDEX) failed");
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return -1;
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}
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return ifdata.ifr_ifindex;
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}
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static int bind_to_device(int sd, const char *name)
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{
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int rc;
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rc = setsockopt(sd, SOL_SOCKET, SO_BINDTODEVICE, name, strlen(name)+1);
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if (rc < 0)
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log_err_errno("setsockopt(SO_BINDTODEVICE)");
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return rc;
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}
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static int get_bind_to_device(int sd, char *name, size_t len)
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{
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int rc;
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socklen_t optlen = len;
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name[0] = '\0';
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rc = getsockopt(sd, SOL_SOCKET, SO_BINDTODEVICE, name, &optlen);
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if (rc < 0)
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log_err_errno("setsockopt(SO_BINDTODEVICE)");
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return rc;
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}
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static int check_device(int sd, struct sock_args *args)
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{
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int ifindex = 0;
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char name[32];
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if (get_bind_to_device(sd, name, sizeof(name)))
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*name = '\0';
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else
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ifindex = get_ifidx(name);
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log_msg(" bound to device %s/%d\n",
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*name ? name : "<none>", ifindex);
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if (!args->expected_ifindex)
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return 0;
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if (args->expected_ifindex != ifindex) {
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log_error("Device index mismatch: expected %d have %d\n",
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args->expected_ifindex, ifindex);
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return 1;
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}
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log_msg("Device index matches: expected %d have %d\n",
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args->expected_ifindex, ifindex);
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return 0;
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}
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static int set_pktinfo_v4(int sd)
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{
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int one = 1;
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int rc;
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rc = setsockopt(sd, SOL_IP, IP_PKTINFO, &one, sizeof(one));
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if (rc < 0 && rc != -ENOTSUP)
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log_err_errno("setsockopt(IP_PKTINFO)");
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return rc;
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}
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static int set_recvpktinfo_v6(int sd)
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{
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int one = 1;
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int rc;
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rc = setsockopt(sd, SOL_IPV6, IPV6_RECVPKTINFO, &one, sizeof(one));
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if (rc < 0 && rc != -ENOTSUP)
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log_err_errno("setsockopt(IPV6_RECVPKTINFO)");
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return rc;
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}
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static int set_recverr_v4(int sd)
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{
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int one = 1;
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int rc;
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rc = setsockopt(sd, SOL_IP, IP_RECVERR, &one, sizeof(one));
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if (rc < 0 && rc != -ENOTSUP)
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log_err_errno("setsockopt(IP_RECVERR)");
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return rc;
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}
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static int set_recverr_v6(int sd)
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{
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int one = 1;
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int rc;
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rc = setsockopt(sd, SOL_IPV6, IPV6_RECVERR, &one, sizeof(one));
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if (rc < 0 && rc != -ENOTSUP)
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log_err_errno("setsockopt(IPV6_RECVERR)");
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return rc;
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}
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static int set_unicast_if(int sd, int ifindex, int version)
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{
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int opt = IP_UNICAST_IF;
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int level = SOL_IP;
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int rc;
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ifindex = htonl(ifindex);
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if (version == AF_INET6) {
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opt = IPV6_UNICAST_IF;
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level = SOL_IPV6;
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}
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rc = setsockopt(sd, level, opt, &ifindex, sizeof(ifindex));
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if (rc < 0)
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log_err_errno("setsockopt(IP_UNICAST_IF)");
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return rc;
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}
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static int set_multicast_if(int sd, int ifindex)
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{
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struct ip_mreqn mreq = { .imr_ifindex = ifindex };
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int rc;
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rc = setsockopt(sd, SOL_IP, IP_MULTICAST_IF, &mreq, sizeof(mreq));
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if (rc < 0)
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log_err_errno("setsockopt(IP_MULTICAST_IF)");
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return rc;
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}
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static int set_membership(int sd, uint32_t grp, uint32_t addr, int ifindex)
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{
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uint32_t if_addr = addr;
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struct ip_mreqn mreq;
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int rc;
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if (addr == htonl(INADDR_ANY) && !ifindex) {
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log_error("Either local address or device needs to be given for multicast membership\n");
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return -1;
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}
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mreq.imr_multiaddr.s_addr = grp;
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mreq.imr_address.s_addr = if_addr;
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mreq.imr_ifindex = ifindex;
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rc = setsockopt(sd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq));
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if (rc < 0) {
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log_err_errno("setsockopt(IP_ADD_MEMBERSHIP)");
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return -1;
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}
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return 0;
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}
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static int set_broadcast(int sd)
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{
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unsigned int one = 1;
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int rc = 0;
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if (setsockopt(sd, SOL_SOCKET, SO_BROADCAST, &one, sizeof(one)) != 0) {
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log_err_errno("setsockopt(SO_BROADCAST)");
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rc = -1;
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}
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return rc;
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}
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static int set_reuseport(int sd)
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{
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unsigned int one = 1;
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int rc = 0;
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if (setsockopt(sd, SOL_SOCKET, SO_REUSEPORT, &one, sizeof(one)) != 0) {
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log_err_errno("setsockopt(SO_REUSEPORT)");
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rc = -1;
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}
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return rc;
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}
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static int set_reuseaddr(int sd)
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{
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unsigned int one = 1;
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int rc = 0;
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if (setsockopt(sd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)) != 0) {
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log_err_errno("setsockopt(SO_REUSEADDR)");
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rc = -1;
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}
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return rc;
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}
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static int str_to_uint(const char *str, int min, int max, unsigned int *value)
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{
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int number;
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char *end;
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errno = 0;
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number = (unsigned int) strtoul(str, &end, 0);
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/* entire string should be consumed by conversion
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* and value should be between min and max
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*/
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if (((*end == '\0') || (*end == '\n')) && (end != str) &&
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(errno != ERANGE) && (min <= number) && (number <= max)) {
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*value = number;
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return 0;
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}
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return -1;
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}
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static int expected_addr_match(struct sockaddr *sa, void *expected,
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const char *desc)
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{
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char addrstr[64];
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int rc = 0;
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|
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if (sa->sa_family == AF_INET) {
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struct sockaddr_in *s = (struct sockaddr_in *) sa;
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struct in_addr *exp_in = (struct in_addr *) expected;
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if (s->sin_addr.s_addr != exp_in->s_addr) {
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log_error("%s address does not match expected %s",
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desc,
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inet_ntop(AF_INET, exp_in,
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addrstr, sizeof(addrstr)));
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rc = 1;
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}
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} else if (sa->sa_family == AF_INET6) {
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struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) sa;
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struct in6_addr *exp_in = (struct in6_addr *) expected;
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if (memcmp(&s6->sin6_addr, exp_in, sizeof(*exp_in))) {
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log_error("%s address does not match expected %s",
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desc,
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inet_ntop(AF_INET6, exp_in,
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addrstr, sizeof(addrstr)));
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rc = 1;
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}
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} else {
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log_error("%s address does not match expected - unknown family",
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desc);
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rc = 1;
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}
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if (!rc)
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log_msg("%s address matches expected\n", desc);
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return rc;
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|
}
|
|
|
|
static int show_sockstat(int sd, struct sock_args *args)
|
|
{
|
|
struct sockaddr_in6 local_addr, remote_addr;
|
|
socklen_t alen = sizeof(local_addr);
|
|
struct sockaddr *sa;
|
|
const char *desc;
|
|
int rc = 0;
|
|
|
|
desc = server_mode ? "server local:" : "client local:";
|
|
sa = (struct sockaddr *) &local_addr;
|
|
if (getsockname(sd, sa, &alen) == 0) {
|
|
log_address(desc, sa);
|
|
|
|
if (args->has_expected_laddr) {
|
|
rc = expected_addr_match(sa, &args->expected_laddr,
|
|
"local");
|
|
}
|
|
} else {
|
|
log_err_errno("getsockname failed");
|
|
}
|
|
|
|
sa = (struct sockaddr *) &remote_addr;
|
|
desc = server_mode ? "server peer:" : "client peer:";
|
|
if (getpeername(sd, sa, &alen) == 0) {
|
|
log_address(desc, sa);
|
|
|
|
if (args->has_expected_raddr) {
|
|
rc |= expected_addr_match(sa, &args->expected_raddr,
|
|
"remote");
|
|
}
|
|
} else {
|
|
log_err_errno("getpeername failed");
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int get_index_from_cmsg(struct msghdr *m)
|
|
{
|
|
struct cmsghdr *cm;
|
|
int ifindex = 0;
|
|
char buf[64];
|
|
|
|
for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(m);
|
|
m->msg_controllen != 0 && cm;
|
|
cm = (struct cmsghdr *)CMSG_NXTHDR(m, cm)) {
|
|
|
|
if (cm->cmsg_level == SOL_IP &&
|
|
cm->cmsg_type == IP_PKTINFO) {
|
|
struct in_pktinfo *pi;
|
|
|
|
pi = (struct in_pktinfo *)(CMSG_DATA(cm));
|
|
inet_ntop(AF_INET, &pi->ipi_addr, buf, sizeof(buf));
|
|
ifindex = pi->ipi_ifindex;
|
|
} else if (cm->cmsg_level == SOL_IPV6 &&
|
|
cm->cmsg_type == IPV6_PKTINFO) {
|
|
struct in6_pktinfo *pi6;
|
|
|
|
pi6 = (struct in6_pktinfo *)(CMSG_DATA(cm));
|
|
inet_ntop(AF_INET6, &pi6->ipi6_addr, buf, sizeof(buf));
|
|
ifindex = pi6->ipi6_ifindex;
|
|
}
|
|
}
|
|
|
|
if (ifindex) {
|
|
log_msg(" pktinfo: ifindex %d dest addr %s\n",
|
|
ifindex, buf);
|
|
}
|
|
return ifindex;
|
|
}
|
|
|
|
static int send_msg_no_cmsg(int sd, void *addr, socklen_t alen)
|
|
{
|
|
int err;
|
|
|
|
again:
|
|
err = sendto(sd, msg, msglen, 0, addr, alen);
|
|
if (err < 0) {
|
|
if (errno == EACCES && try_broadcast) {
|
|
try_broadcast = 0;
|
|
if (!set_broadcast(sd))
|
|
goto again;
|
|
errno = EACCES;
|
|
}
|
|
|
|
log_err_errno("sendto failed");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int send_msg_cmsg(int sd, void *addr, socklen_t alen,
|
|
int ifindex, int version)
|
|
{
|
|
unsigned char cmsgbuf[64];
|
|
struct iovec iov[2];
|
|
struct cmsghdr *cm;
|
|
struct msghdr m;
|
|
int err;
|
|
|
|
iov[0].iov_base = msg;
|
|
iov[0].iov_len = msglen;
|
|
m.msg_iov = iov;
|
|
m.msg_iovlen = 1;
|
|
m.msg_name = (caddr_t)addr;
|
|
m.msg_namelen = alen;
|
|
|
|
memset(cmsgbuf, 0, sizeof(cmsgbuf));
|
|
cm = (struct cmsghdr *)cmsgbuf;
|
|
m.msg_control = (caddr_t)cm;
|
|
|
|
if (version == AF_INET) {
|
|
struct in_pktinfo *pi;
|
|
|
|
cm->cmsg_level = SOL_IP;
|
|
cm->cmsg_type = IP_PKTINFO;
|
|
cm->cmsg_len = CMSG_LEN(sizeof(struct in_pktinfo));
|
|
pi = (struct in_pktinfo *)(CMSG_DATA(cm));
|
|
pi->ipi_ifindex = ifindex;
|
|
|
|
m.msg_controllen = cm->cmsg_len;
|
|
|
|
} else if (version == AF_INET6) {
|
|
struct in6_pktinfo *pi6;
|
|
|
|
cm->cmsg_level = SOL_IPV6;
|
|
cm->cmsg_type = IPV6_PKTINFO;
|
|
cm->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo));
|
|
|
|
pi6 = (struct in6_pktinfo *)(CMSG_DATA(cm));
|
|
pi6->ipi6_ifindex = ifindex;
|
|
|
|
m.msg_controllen = cm->cmsg_len;
|
|
}
|
|
|
|
again:
|
|
err = sendmsg(sd, &m, 0);
|
|
if (err < 0) {
|
|
if (errno == EACCES && try_broadcast) {
|
|
try_broadcast = 0;
|
|
if (!set_broadcast(sd))
|
|
goto again;
|
|
errno = EACCES;
|
|
}
|
|
|
|
log_err_errno("sendmsg failed");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int send_msg(int sd, void *addr, socklen_t alen, struct sock_args *args)
|
|
{
|
|
if (args->type == SOCK_STREAM) {
|
|
if (write(sd, msg, msglen) < 0) {
|
|
log_err_errno("write failed sending msg to peer");
|
|
return 1;
|
|
}
|
|
} else if (args->ifindex && args->use_cmsg) {
|
|
if (send_msg_cmsg(sd, addr, alen, args->ifindex, args->version))
|
|
return 1;
|
|
} else {
|
|
if (send_msg_no_cmsg(sd, addr, alen))
|
|
return 1;
|
|
}
|
|
|
|
log_msg("Sent message:\n");
|
|
log_msg(" %.24s%s\n", msg, msglen > 24 ? " ..." : "");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int socket_read_dgram(int sd, struct sock_args *args)
|
|
{
|
|
unsigned char addr[sizeof(struct sockaddr_in6)];
|
|
struct sockaddr *sa = (struct sockaddr *) addr;
|
|
socklen_t alen = sizeof(addr);
|
|
struct iovec iov[2];
|
|
struct msghdr m = {
|
|
.msg_name = (caddr_t)addr,
|
|
.msg_namelen = alen,
|
|
.msg_iov = iov,
|
|
.msg_iovlen = 1,
|
|
};
|
|
unsigned char cmsgbuf[256];
|
|
struct cmsghdr *cm = (struct cmsghdr *)cmsgbuf;
|
|
char buf[16*1024];
|
|
int ifindex;
|
|
int len;
|
|
|
|
iov[0].iov_base = (caddr_t)buf;
|
|
iov[0].iov_len = sizeof(buf);
|
|
|
|
memset(cmsgbuf, 0, sizeof(cmsgbuf));
|
|
m.msg_control = (caddr_t)cm;
|
|
m.msg_controllen = sizeof(cmsgbuf);
|
|
|
|
len = recvmsg(sd, &m, 0);
|
|
if (len == 0) {
|
|
log_msg("peer closed connection.\n");
|
|
return 0;
|
|
} else if (len < 0) {
|
|
log_msg("failed to read message: %d: %s\n",
|
|
errno, strerror(errno));
|
|
return -1;
|
|
}
|
|
|
|
buf[len] = '\0';
|
|
|
|
log_address("Message from:", sa);
|
|
log_msg(" %.24s%s\n", buf, len > 24 ? " ..." : "");
|
|
|
|
ifindex = get_index_from_cmsg(&m);
|
|
if (args->expected_ifindex) {
|
|
if (args->expected_ifindex != ifindex) {
|
|
log_error("Device index mismatch: expected %d have %d\n",
|
|
args->expected_ifindex, ifindex);
|
|
return -1;
|
|
}
|
|
log_msg("Device index matches: expected %d have %d\n",
|
|
args->expected_ifindex, ifindex);
|
|
}
|
|
|
|
if (!interactive && server_mode) {
|
|
if (sa->sa_family == AF_INET6) {
|
|
struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) sa;
|
|
struct in6_addr *in6 = &s6->sin6_addr;
|
|
|
|
if (IN6_IS_ADDR_V4MAPPED(in6)) {
|
|
const uint32_t *pa = (uint32_t *) &in6->s6_addr;
|
|
struct in_addr in4;
|
|
struct sockaddr_in *sin;
|
|
|
|
sin = (struct sockaddr_in *) addr;
|
|
pa += 3;
|
|
in4.s_addr = *pa;
|
|
sin->sin_addr = in4;
|
|
sin->sin_family = AF_INET;
|
|
if (send_msg_cmsg(sd, addr, alen,
|
|
ifindex, AF_INET) < 0)
|
|
goto out_err;
|
|
}
|
|
}
|
|
again:
|
|
iov[0].iov_len = len;
|
|
|
|
if (args->version == AF_INET6) {
|
|
struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) sa;
|
|
|
|
if (args->dev) {
|
|
/* avoid PKTINFO conflicts with bindtodev */
|
|
if (sendto(sd, buf, len, 0,
|
|
(void *) addr, alen) < 0)
|
|
goto out_err;
|
|
} else {
|
|
/* kernel is allowing scope_id to be set to VRF
|
|
* index for LLA. for sends to global address
|
|
* reset scope id
|
|
*/
|
|
s6->sin6_scope_id = ifindex;
|
|
if (sendmsg(sd, &m, 0) < 0)
|
|
goto out_err;
|
|
}
|
|
} else {
|
|
int err;
|
|
|
|
err = sendmsg(sd, &m, 0);
|
|
if (err < 0) {
|
|
if (errno == EACCES && try_broadcast) {
|
|
try_broadcast = 0;
|
|
if (!set_broadcast(sd))
|
|
goto again;
|
|
errno = EACCES;
|
|
}
|
|
goto out_err;
|
|
}
|
|
}
|
|
log_msg("Sent message:\n");
|
|
log_msg(" %.24s%s\n", buf, len > 24 ? " ..." : "");
|
|
}
|
|
|
|
return 1;
|
|
out_err:
|
|
log_err_errno("failed to send msg to peer");
|
|
return -1;
|
|
}
|
|
|
|
static int socket_read_stream(int sd)
|
|
{
|
|
char buf[1024];
|
|
int len;
|
|
|
|
len = read(sd, buf, sizeof(buf)-1);
|
|
if (len == 0) {
|
|
log_msg("client closed connection.\n");
|
|
return 0;
|
|
} else if (len < 0) {
|
|
log_msg("failed to read message\n");
|
|
return -1;
|
|
}
|
|
|
|
buf[len] = '\0';
|
|
log_msg("Incoming message:\n");
|
|
log_msg(" %.24s%s\n", buf, len > 24 ? " ..." : "");
|
|
|
|
if (!interactive && server_mode) {
|
|
if (write(sd, buf, len) < 0) {
|
|
log_err_errno("failed to send buf");
|
|
return -1;
|
|
}
|
|
log_msg("Sent message:\n");
|
|
log_msg(" %.24s%s\n", buf, len > 24 ? " ..." : "");
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int socket_read(int sd, struct sock_args *args)
|
|
{
|
|
if (args->type == SOCK_STREAM)
|
|
return socket_read_stream(sd);
|
|
|
|
return socket_read_dgram(sd, args);
|
|
}
|
|
|
|
static int stdin_to_socket(int sd, int type, void *addr, socklen_t alen)
|
|
{
|
|
char buf[1024];
|
|
int len;
|
|
|
|
if (fgets(buf, sizeof(buf), stdin) == NULL)
|
|
return 0;
|
|
|
|
len = strlen(buf);
|
|
if (type == SOCK_STREAM) {
|
|
if (write(sd, buf, len) < 0) {
|
|
log_err_errno("failed to send buf");
|
|
return -1;
|
|
}
|
|
} else {
|
|
int err;
|
|
|
|
again:
|
|
err = sendto(sd, buf, len, 0, addr, alen);
|
|
if (err < 0) {
|
|
if (errno == EACCES && try_broadcast) {
|
|
try_broadcast = 0;
|
|
if (!set_broadcast(sd))
|
|
goto again;
|
|
errno = EACCES;
|
|
}
|
|
log_err_errno("failed to send msg to peer");
|
|
return -1;
|
|
}
|
|
}
|
|
log_msg("Sent message:\n");
|
|
log_msg(" %.24s%s\n", buf, len > 24 ? " ..." : "");
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void set_recv_attr(int sd, int version)
|
|
{
|
|
if (version == AF_INET6) {
|
|
set_recvpktinfo_v6(sd);
|
|
set_recverr_v6(sd);
|
|
} else {
|
|
set_pktinfo_v4(sd);
|
|
set_recverr_v4(sd);
|
|
}
|
|
}
|
|
|
|
static int msg_loop(int client, int sd, void *addr, socklen_t alen,
|
|
struct sock_args *args)
|
|
{
|
|
struct timeval timeout = { .tv_sec = prog_timeout }, *ptval = NULL;
|
|
fd_set rfds;
|
|
int nfds;
|
|
int rc;
|
|
|
|
if (args->type != SOCK_STREAM)
|
|
set_recv_attr(sd, args->version);
|
|
|
|
if (msg) {
|
|
msglen = strlen(msg);
|
|
|
|
/* client sends first message */
|
|
if (client) {
|
|
if (send_msg(sd, addr, alen, args))
|
|
return 1;
|
|
}
|
|
if (!interactive) {
|
|
ptval = &timeout;
|
|
if (!prog_timeout)
|
|
timeout.tv_sec = 5;
|
|
}
|
|
}
|
|
|
|
nfds = interactive ? MAX(fileno(stdin), sd) + 1 : sd + 1;
|
|
while (1) {
|
|
FD_ZERO(&rfds);
|
|
FD_SET(sd, &rfds);
|
|
if (interactive)
|
|
FD_SET(fileno(stdin), &rfds);
|
|
|
|
rc = select(nfds, &rfds, NULL, NULL, ptval);
|
|
if (rc < 0) {
|
|
if (errno == EINTR)
|
|
continue;
|
|
|
|
rc = 1;
|
|
log_err_errno("select failed");
|
|
break;
|
|
} else if (rc == 0) {
|
|
log_error("Timed out waiting for response\n");
|
|
rc = 2;
|
|
break;
|
|
}
|
|
|
|
if (FD_ISSET(sd, &rfds)) {
|
|
rc = socket_read(sd, args);
|
|
if (rc < 0) {
|
|
rc = 1;
|
|
break;
|
|
}
|
|
if (rc == 0)
|
|
break;
|
|
}
|
|
|
|
rc = 0;
|
|
|
|
if (FD_ISSET(fileno(stdin), &rfds)) {
|
|
if (stdin_to_socket(sd, args->type, addr, alen) <= 0)
|
|
break;
|
|
}
|
|
|
|
if (interactive)
|
|
continue;
|
|
|
|
if (iter != -1) {
|
|
--iter;
|
|
if (iter == 0)
|
|
break;
|
|
}
|
|
|
|
log_msg("Going into quiet mode\n");
|
|
quiet = 1;
|
|
|
|
if (client) {
|
|
if (send_msg(sd, addr, alen, args)) {
|
|
rc = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int msock_init(struct sock_args *args, int server)
|
|
{
|
|
uint32_t if_addr = htonl(INADDR_ANY);
|
|
struct sockaddr_in laddr = {
|
|
.sin_family = AF_INET,
|
|
.sin_port = htons(args->port),
|
|
};
|
|
int one = 1;
|
|
int sd;
|
|
|
|
if (!server && args->has_local_ip)
|
|
if_addr = args->local_addr.in.s_addr;
|
|
|
|
sd = socket(PF_INET, SOCK_DGRAM, 0);
|
|
if (sd < 0) {
|
|
log_err_errno("socket");
|
|
return -1;
|
|
}
|
|
|
|
if (setsockopt(sd, SOL_SOCKET, SO_REUSEADDR,
|
|
(char *)&one, sizeof(one)) < 0) {
|
|
log_err_errno("Setting SO_REUSEADDR error");
|
|
goto out_err;
|
|
}
|
|
|
|
if (setsockopt(sd, SOL_SOCKET, SO_BROADCAST,
|
|
(char *)&one, sizeof(one)) < 0)
|
|
log_err_errno("Setting SO_BROADCAST error");
|
|
|
|
if (args->dev && bind_to_device(sd, args->dev) != 0)
|
|
goto out_err;
|
|
else if (args->use_setsockopt &&
|
|
set_multicast_if(sd, args->ifindex))
|
|
goto out_err;
|
|
|
|
laddr.sin_addr.s_addr = if_addr;
|
|
|
|
if (bind(sd, (struct sockaddr *) &laddr, sizeof(laddr)) < 0) {
|
|
log_err_errno("bind failed");
|
|
goto out_err;
|
|
}
|
|
|
|
if (server &&
|
|
set_membership(sd, args->grp.s_addr,
|
|
args->local_addr.in.s_addr, args->ifindex))
|
|
goto out_err;
|
|
|
|
return sd;
|
|
out_err:
|
|
close(sd);
|
|
return -1;
|
|
}
|
|
|
|
static int msock_server(struct sock_args *args)
|
|
{
|
|
return msock_init(args, 1);
|
|
}
|
|
|
|
static int msock_client(struct sock_args *args)
|
|
{
|
|
return msock_init(args, 0);
|
|
}
|
|
|
|
static int bind_socket(int sd, struct sock_args *args)
|
|
{
|
|
struct sockaddr_in serv_addr = {
|
|
.sin_family = AF_INET,
|
|
};
|
|
struct sockaddr_in6 serv6_addr = {
|
|
.sin6_family = AF_INET6,
|
|
};
|
|
void *addr;
|
|
socklen_t alen;
|
|
|
|
if (!args->has_local_ip && args->type == SOCK_RAW)
|
|
return 0;
|
|
|
|
switch (args->version) {
|
|
case AF_INET:
|
|
serv_addr.sin_port = htons(args->port);
|
|
serv_addr.sin_addr = args->local_addr.in;
|
|
addr = &serv_addr;
|
|
alen = sizeof(serv_addr);
|
|
break;
|
|
|
|
case AF_INET6:
|
|
serv6_addr.sin6_port = htons(args->port);
|
|
serv6_addr.sin6_addr = args->local_addr.in6;
|
|
addr = &serv6_addr;
|
|
alen = sizeof(serv6_addr);
|
|
break;
|
|
|
|
default:
|
|
log_error("Invalid address family\n");
|
|
return -1;
|
|
}
|
|
|
|
if (bind(sd, addr, alen) < 0) {
|
|
log_err_errno("error binding socket");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lsock_init(struct sock_args *args)
|
|
{
|
|
long flags;
|
|
int sd;
|
|
|
|
sd = socket(args->version, args->type, args->protocol);
|
|
if (sd < 0) {
|
|
log_err_errno("Error opening socket");
|
|
return -1;
|
|
}
|
|
|
|
if (set_reuseaddr(sd) != 0)
|
|
goto err;
|
|
|
|
if (set_reuseport(sd) != 0)
|
|
goto err;
|
|
|
|
if (args->dev && bind_to_device(sd, args->dev) != 0)
|
|
goto err;
|
|
else if (args->use_setsockopt &&
|
|
set_unicast_if(sd, args->ifindex, args->version))
|
|
goto err;
|
|
|
|
if (bind_socket(sd, args))
|
|
goto err;
|
|
|
|
if (args->bind_test_only)
|
|
goto out;
|
|
|
|
if (args->type == SOCK_STREAM && listen(sd, 1) < 0) {
|
|
log_err_errno("listen failed");
|
|
goto err;
|
|
}
|
|
|
|
flags = fcntl(sd, F_GETFL);
|
|
if ((flags < 0) || (fcntl(sd, F_SETFL, flags|O_NONBLOCK) < 0)) {
|
|
log_err_errno("Failed to set non-blocking option");
|
|
goto err;
|
|
}
|
|
|
|
if (fcntl(sd, F_SETFD, FD_CLOEXEC) < 0)
|
|
log_err_errno("Failed to set close-on-exec flag");
|
|
|
|
out:
|
|
return sd;
|
|
|
|
err:
|
|
close(sd);
|
|
return -1;
|
|
}
|
|
|
|
static int do_server(struct sock_args *args)
|
|
{
|
|
struct timeval timeout = { .tv_sec = prog_timeout }, *ptval = NULL;
|
|
unsigned char addr[sizeof(struct sockaddr_in6)] = {};
|
|
socklen_t alen = sizeof(addr);
|
|
int lsd, csd = -1;
|
|
|
|
fd_set rfds;
|
|
int rc;
|
|
|
|
if (prog_timeout)
|
|
ptval = &timeout;
|
|
|
|
if (args->has_grp)
|
|
lsd = msock_server(args);
|
|
else
|
|
lsd = lsock_init(args);
|
|
|
|
if (lsd < 0)
|
|
return 1;
|
|
|
|
if (args->bind_test_only) {
|
|
close(lsd);
|
|
return 0;
|
|
}
|
|
|
|
if (args->type != SOCK_STREAM) {
|
|
rc = msg_loop(0, lsd, (void *) addr, alen, args);
|
|
close(lsd);
|
|
return rc;
|
|
}
|
|
|
|
if (args->password && tcp_md5_remote(lsd, args)) {
|
|
close(lsd);
|
|
return -1;
|
|
}
|
|
|
|
while (1) {
|
|
log_msg("\n");
|
|
log_msg("waiting for client connection.\n");
|
|
FD_ZERO(&rfds);
|
|
FD_SET(lsd, &rfds);
|
|
|
|
rc = select(lsd+1, &rfds, NULL, NULL, ptval);
|
|
if (rc == 0) {
|
|
rc = 2;
|
|
break;
|
|
}
|
|
|
|
if (rc < 0) {
|
|
if (errno == EINTR)
|
|
continue;
|
|
|
|
log_err_errno("select failed");
|
|
break;
|
|
}
|
|
|
|
if (FD_ISSET(lsd, &rfds)) {
|
|
|
|
csd = accept(lsd, (void *) addr, &alen);
|
|
if (csd < 0) {
|
|
log_err_errno("accept failed");
|
|
break;
|
|
}
|
|
|
|
rc = show_sockstat(csd, args);
|
|
if (rc)
|
|
break;
|
|
|
|
rc = check_device(csd, args);
|
|
if (rc)
|
|
break;
|
|
}
|
|
|
|
rc = msg_loop(0, csd, (void *) addr, alen, args);
|
|
close(csd);
|
|
|
|
if (!interactive)
|
|
break;
|
|
}
|
|
|
|
close(lsd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int wait_for_connect(int sd)
|
|
{
|
|
struct timeval _tv = { .tv_sec = prog_timeout }, *tv = NULL;
|
|
fd_set wfd;
|
|
int val = 0, sz = sizeof(val);
|
|
int rc;
|
|
|
|
FD_ZERO(&wfd);
|
|
FD_SET(sd, &wfd);
|
|
|
|
if (prog_timeout)
|
|
tv = &_tv;
|
|
|
|
rc = select(FD_SETSIZE, NULL, &wfd, NULL, tv);
|
|
if (rc == 0) {
|
|
log_error("connect timed out\n");
|
|
return -2;
|
|
} else if (rc < 0) {
|
|
log_err_errno("select failed");
|
|
return -3;
|
|
}
|
|
|
|
if (getsockopt(sd, SOL_SOCKET, SO_ERROR, &val, (socklen_t *)&sz) < 0) {
|
|
log_err_errno("getsockopt(SO_ERROR) failed");
|
|
return -4;
|
|
}
|
|
|
|
if (val != 0) {
|
|
log_error("connect failed: %d: %s\n", val, strerror(val));
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int connectsock(void *addr, socklen_t alen, struct sock_args *args)
|
|
{
|
|
int sd, rc = -1;
|
|
long flags;
|
|
|
|
sd = socket(args->version, args->type, args->protocol);
|
|
if (sd < 0) {
|
|
log_err_errno("Failed to create socket");
|
|
return -1;
|
|
}
|
|
|
|
flags = fcntl(sd, F_GETFL);
|
|
if ((flags < 0) || (fcntl(sd, F_SETFL, flags|O_NONBLOCK) < 0)) {
|
|
log_err_errno("Failed to set non-blocking option");
|
|
goto err;
|
|
}
|
|
|
|
if (set_reuseport(sd) != 0)
|
|
goto err;
|
|
|
|
if (args->dev && bind_to_device(sd, args->dev) != 0)
|
|
goto err;
|
|
else if (args->use_setsockopt &&
|
|
set_unicast_if(sd, args->ifindex, args->version))
|
|
goto err;
|
|
|
|
if (args->has_local_ip && bind_socket(sd, args))
|
|
goto err;
|
|
|
|
if (args->type != SOCK_STREAM)
|
|
goto out;
|
|
|
|
if (args->password && tcp_md5sig(sd, addr, alen, args->password))
|
|
goto err;
|
|
|
|
if (args->bind_test_only)
|
|
goto out;
|
|
|
|
if (connect(sd, addr, alen) < 0) {
|
|
if (errno != EINPROGRESS) {
|
|
log_err_errno("Failed to connect to remote host");
|
|
rc = -1;
|
|
goto err;
|
|
}
|
|
rc = wait_for_connect(sd);
|
|
if (rc < 0)
|
|
goto err;
|
|
}
|
|
out:
|
|
return sd;
|
|
|
|
err:
|
|
close(sd);
|
|
return rc;
|
|
}
|
|
|
|
static int do_client(struct sock_args *args)
|
|
{
|
|
struct sockaddr_in sin = {
|
|
.sin_family = AF_INET,
|
|
};
|
|
struct sockaddr_in6 sin6 = {
|
|
.sin6_family = AF_INET6,
|
|
};
|
|
void *addr;
|
|
int alen;
|
|
int rc = 0;
|
|
int sd;
|
|
|
|
if (!args->has_remote_ip && !args->has_grp) {
|
|
fprintf(stderr, "remote IP or multicast group not given\n");
|
|
return 1;
|
|
}
|
|
|
|
switch (args->version) {
|
|
case AF_INET:
|
|
sin.sin_port = htons(args->port);
|
|
if (args->has_grp)
|
|
sin.sin_addr = args->grp;
|
|
else
|
|
sin.sin_addr = args->remote_addr.in;
|
|
addr = &sin;
|
|
alen = sizeof(sin);
|
|
break;
|
|
case AF_INET6:
|
|
sin6.sin6_port = htons(args->port);
|
|
sin6.sin6_addr = args->remote_addr.in6;
|
|
sin6.sin6_scope_id = args->scope_id;
|
|
addr = &sin6;
|
|
alen = sizeof(sin6);
|
|
break;
|
|
}
|
|
|
|
if (args->has_grp)
|
|
sd = msock_client(args);
|
|
else
|
|
sd = connectsock(addr, alen, args);
|
|
|
|
if (sd < 0)
|
|
return -sd;
|
|
|
|
if (args->bind_test_only)
|
|
goto out;
|
|
|
|
if (args->type == SOCK_STREAM) {
|
|
rc = show_sockstat(sd, args);
|
|
if (rc != 0)
|
|
goto out;
|
|
}
|
|
|
|
rc = msg_loop(1, sd, addr, alen, args);
|
|
|
|
out:
|
|
close(sd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
enum addr_type {
|
|
ADDR_TYPE_LOCAL,
|
|
ADDR_TYPE_REMOTE,
|
|
ADDR_TYPE_MCAST,
|
|
ADDR_TYPE_EXPECTED_LOCAL,
|
|
ADDR_TYPE_EXPECTED_REMOTE,
|
|
};
|
|
|
|
static int convert_addr(struct sock_args *args, const char *_str,
|
|
enum addr_type atype)
|
|
{
|
|
int family = args->version;
|
|
struct in6_addr *in6;
|
|
struct in_addr *in;
|
|
const char *desc;
|
|
char *str, *dev;
|
|
void *addr;
|
|
int rc = 0;
|
|
|
|
str = strdup(_str);
|
|
if (!str)
|
|
return -ENOMEM;
|
|
|
|
switch (atype) {
|
|
case ADDR_TYPE_LOCAL:
|
|
desc = "local";
|
|
addr = &args->local_addr;
|
|
break;
|
|
case ADDR_TYPE_REMOTE:
|
|
desc = "remote";
|
|
addr = &args->remote_addr;
|
|
break;
|
|
case ADDR_TYPE_MCAST:
|
|
desc = "mcast grp";
|
|
addr = &args->grp;
|
|
break;
|
|
case ADDR_TYPE_EXPECTED_LOCAL:
|
|
desc = "expected local";
|
|
addr = &args->expected_laddr;
|
|
break;
|
|
case ADDR_TYPE_EXPECTED_REMOTE:
|
|
desc = "expected remote";
|
|
addr = &args->expected_raddr;
|
|
break;
|
|
default:
|
|
log_error("unknown address type");
|
|
exit(1);
|
|
}
|
|
|
|
switch (family) {
|
|
case AF_INET:
|
|
in = (struct in_addr *) addr;
|
|
if (str) {
|
|
if (inet_pton(AF_INET, str, in) == 0) {
|
|
log_error("Invalid %s IP address\n", desc);
|
|
rc = -1;
|
|
goto out;
|
|
}
|
|
} else {
|
|
in->s_addr = htonl(INADDR_ANY);
|
|
}
|
|
break;
|
|
|
|
case AF_INET6:
|
|
dev = strchr(str, '%');
|
|
if (dev) {
|
|
*dev = '\0';
|
|
dev++;
|
|
}
|
|
|
|
in6 = (struct in6_addr *) addr;
|
|
if (str) {
|
|
if (inet_pton(AF_INET6, str, in6) == 0) {
|
|
log_error("Invalid %s IPv6 address\n", desc);
|
|
rc = -1;
|
|
goto out;
|
|
}
|
|
} else {
|
|
*in6 = in6addr_any;
|
|
}
|
|
if (dev) {
|
|
args->scope_id = get_ifidx(dev);
|
|
if (args->scope_id < 0) {
|
|
log_error("Invalid scope on %s IPv6 address\n",
|
|
desc);
|
|
rc = -1;
|
|
goto out;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
log_error("Invalid address family\n");
|
|
}
|
|
|
|
out:
|
|
free(str);
|
|
return rc;
|
|
}
|
|
|
|
static char *random_msg(int len)
|
|
{
|
|
int i, n = 0, olen = len + 1;
|
|
char *m;
|
|
|
|
if (len <= 0)
|
|
return NULL;
|
|
|
|
m = malloc(olen);
|
|
if (!m)
|
|
return NULL;
|
|
|
|
while (len > 26) {
|
|
i = snprintf(m + n, olen - n, "%.26s",
|
|
"abcdefghijklmnopqrstuvwxyz");
|
|
n += i;
|
|
len -= i;
|
|
}
|
|
i = snprintf(m + n, olen - n, "%.*s", len,
|
|
"abcdefghijklmnopqrstuvwxyz");
|
|
return m;
|
|
}
|
|
|
|
#define GETOPT_STR "sr:l:p:t:g:P:DRn:M:d:SCi6L:0:1:2:Fbq"
|
|
|
|
static void print_usage(char *prog)
|
|
{
|
|
printf(
|
|
"usage: %s OPTS\n"
|
|
"Required:\n"
|
|
" -r addr remote address to connect to (client mode only)\n"
|
|
" -p port port to connect to (client mode)/listen on (server mode)\n"
|
|
" (default: %d)\n"
|
|
" -s server mode (default: client mode)\n"
|
|
" -t timeout seconds (default: none)\n"
|
|
"\n"
|
|
"Optional:\n"
|
|
" -F Restart server loop\n"
|
|
" -6 IPv6 (default is IPv4)\n"
|
|
" -P proto protocol for socket: icmp, ospf (default: none)\n"
|
|
" -D|R datagram (D) / raw (R) socket (default stream)\n"
|
|
" -l addr local address to bind to\n"
|
|
"\n"
|
|
" -d dev bind socket to given device name\n"
|
|
" -S use setsockopt (IP_UNICAST_IF or IP_MULTICAST_IF)\n"
|
|
" to set device binding\n"
|
|
" -C use cmsg and IP_PKTINFO to specify device binding\n"
|
|
"\n"
|
|
" -L len send random message of given length\n"
|
|
" -n num number of times to send message\n"
|
|
"\n"
|
|
" -M password use MD5 sum protection\n"
|
|
" -g grp multicast group (e.g., 239.1.1.1)\n"
|
|
" -i interactive mode (default is echo and terminate)\n"
|
|
"\n"
|
|
" -0 addr Expected local address\n"
|
|
" -1 addr Expected remote address\n"
|
|
" -2 dev Expected device name (or index) to receive packet\n"
|
|
"\n"
|
|
" -b Bind test only.\n"
|
|
" -q Be quiet. Run test without printing anything.\n"
|
|
, prog, DEFAULT_PORT);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
struct sock_args args = {
|
|
.version = AF_INET,
|
|
.type = SOCK_STREAM,
|
|
.port = DEFAULT_PORT,
|
|
};
|
|
struct protoent *pe;
|
|
unsigned int tmp;
|
|
int forever = 0;
|
|
|
|
/* process inputs */
|
|
extern char *optarg;
|
|
int rc = 0;
|
|
|
|
/*
|
|
* process input args
|
|
*/
|
|
|
|
while ((rc = getopt(argc, argv, GETOPT_STR)) != -1) {
|
|
switch (rc) {
|
|
case 's':
|
|
server_mode = 1;
|
|
break;
|
|
case 'F':
|
|
forever = 1;
|
|
break;
|
|
case 'l':
|
|
args.has_local_ip = 1;
|
|
if (convert_addr(&args, optarg, ADDR_TYPE_LOCAL) < 0)
|
|
return 1;
|
|
break;
|
|
case 'r':
|
|
args.has_remote_ip = 1;
|
|
if (convert_addr(&args, optarg, ADDR_TYPE_REMOTE) < 0)
|
|
return 1;
|
|
break;
|
|
case 'p':
|
|
if (str_to_uint(optarg, 1, 65535, &tmp) != 0) {
|
|
fprintf(stderr, "Invalid port\n");
|
|
return 1;
|
|
}
|
|
args.port = (unsigned short) tmp;
|
|
break;
|
|
case 't':
|
|
if (str_to_uint(optarg, 0, INT_MAX,
|
|
&prog_timeout) != 0) {
|
|
fprintf(stderr, "Invalid timeout\n");
|
|
return 1;
|
|
}
|
|
break;
|
|
case 'D':
|
|
args.type = SOCK_DGRAM;
|
|
break;
|
|
case 'R':
|
|
args.type = SOCK_RAW;
|
|
args.port = 0;
|
|
break;
|
|
case 'P':
|
|
pe = getprotobyname(optarg);
|
|
if (pe) {
|
|
args.protocol = pe->p_proto;
|
|
} else {
|
|
if (str_to_uint(optarg, 0, 0xffff, &tmp) != 0) {
|
|
fprintf(stderr, "Invalid protocol\n");
|
|
return 1;
|
|
}
|
|
args.protocol = tmp;
|
|
}
|
|
break;
|
|
case 'n':
|
|
iter = atoi(optarg);
|
|
break;
|
|
case 'L':
|
|
msg = random_msg(atoi(optarg));
|
|
break;
|
|
case 'M':
|
|
args.password = optarg;
|
|
break;
|
|
case 'S':
|
|
args.use_setsockopt = 1;
|
|
break;
|
|
case 'C':
|
|
args.use_cmsg = 1;
|
|
break;
|
|
case 'd':
|
|
args.dev = optarg;
|
|
args.ifindex = get_ifidx(optarg);
|
|
if (args.ifindex < 0) {
|
|
fprintf(stderr, "Invalid device name\n");
|
|
return 1;
|
|
}
|
|
break;
|
|
case 'i':
|
|
interactive = 1;
|
|
break;
|
|
case 'g':
|
|
args.has_grp = 1;
|
|
if (convert_addr(&args, optarg, ADDR_TYPE_MCAST) < 0)
|
|
return 1;
|
|
args.type = SOCK_DGRAM;
|
|
break;
|
|
case '6':
|
|
args.version = AF_INET6;
|
|
break;
|
|
case 'b':
|
|
args.bind_test_only = 1;
|
|
break;
|
|
case '0':
|
|
args.has_expected_laddr = 1;
|
|
if (convert_addr(&args, optarg,
|
|
ADDR_TYPE_EXPECTED_LOCAL))
|
|
return 1;
|
|
break;
|
|
case '1':
|
|
args.has_expected_raddr = 1;
|
|
if (convert_addr(&args, optarg,
|
|
ADDR_TYPE_EXPECTED_REMOTE))
|
|
return 1;
|
|
|
|
break;
|
|
case '2':
|
|
if (str_to_uint(optarg, 0, INT_MAX, &tmp) == 0) {
|
|
args.expected_ifindex = (int)tmp;
|
|
} else {
|
|
args.expected_ifindex = get_ifidx(optarg);
|
|
if (args.expected_ifindex < 0) {
|
|
fprintf(stderr,
|
|
"Invalid expected device\n");
|
|
return 1;
|
|
}
|
|
}
|
|
break;
|
|
case 'q':
|
|
quiet = 1;
|
|
break;
|
|
default:
|
|
print_usage(argv[0]);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
if (args.password &&
|
|
(!args.has_remote_ip || args.type != SOCK_STREAM)) {
|
|
log_error("MD5 passwords apply to TCP only and require a remote ip for the password\n");
|
|
return 1;
|
|
}
|
|
|
|
if ((args.use_setsockopt || args.use_cmsg) && !args.ifindex) {
|
|
fprintf(stderr, "Device binding not specified\n");
|
|
return 1;
|
|
}
|
|
if (args.use_setsockopt || args.use_cmsg)
|
|
args.dev = NULL;
|
|
|
|
if (iter == 0) {
|
|
fprintf(stderr, "Invalid number of messages to send\n");
|
|
return 1;
|
|
}
|
|
|
|
if (args.type == SOCK_STREAM && !args.protocol)
|
|
args.protocol = IPPROTO_TCP;
|
|
if (args.type == SOCK_DGRAM && !args.protocol)
|
|
args.protocol = IPPROTO_UDP;
|
|
|
|
if ((args.type == SOCK_STREAM || args.type == SOCK_DGRAM) &&
|
|
args.port == 0) {
|
|
fprintf(stderr, "Invalid port number\n");
|
|
return 1;
|
|
}
|
|
|
|
if (!server_mode && !args.has_grp &&
|
|
!args.has_remote_ip && !args.has_local_ip) {
|
|
fprintf(stderr,
|
|
"Local (server mode) or remote IP (client IP) required\n");
|
|
return 1;
|
|
}
|
|
|
|
if (interactive) {
|
|
prog_timeout = 0;
|
|
msg = NULL;
|
|
}
|
|
|
|
if (server_mode) {
|
|
do {
|
|
rc = do_server(&args);
|
|
} while (forever);
|
|
|
|
return rc;
|
|
}
|
|
return do_client(&args);
|
|
}
|