/*-
* Copyright (c) 2012 Cisco Systems, Inc.
* All rights reserved.
*
* This software was developed by Bjoern Zeeb under contract to
* Cisco Systems, Inc..
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Regression test on SO_SETFIB setsockopt(2).
*
* Check that the expected domain(9) families all handle the socket option
* correctly and do proper bounds checks.
*
* Test plan:
* 1. Get system wide number of FIBs from sysctl and convert to index (-= 1).
* 2. For each protocol family (INET, INET6, ROUTE and LOCAL) open socketes of
* type (STREAM, DGRAM and RAW) as supported.
* 3. Do a sequence of -2, -1, 0, .. n, n+1, n+2 SO_SETFIB sockopt calls,
* expecting the first two and last two to fail (valid 0 ... n).
* 4. Try 3 random numbers. Calculate result based on valid range.
* 5. Repeat for next domain family and type from (2) on.
*/
#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
static struct t_dom {
int domain;
const char *name;
} t_dom[] = {
#ifdef INET6
{ .domain = PF_INET6, .name = "PF_INET6" },
#endif
#ifdef INET
{ .domain = PF_INET, .name = "PF_INET" },
#endif
{ .domain = PF_ROUTE, .name = "PF_ROUTE" },
{ .domain = PF_LOCAL, .name = "PF_LOCAL" },
};
static struct t_type {
int type;
const char *name;
} t_type[] = {
{ .type = SOCK_STREAM, .name = "SOCK_STREAM" },
{ .type = SOCK_DGRAM, .name = "SOCK_DGRAM" },
{ .type = SOCK_RAW, .name = "SOCK_RAW" },
};
/*
* Number of FIBs as read from net.fibs sysctl - 1. Initialize to clear out of
* bounds value to not accidentally run on a limited range.
*/
static int rt_numfibs = -42;
/* Number of test case. */
static int testno = 1;
/*
* Try the setsockopt with given FIB number i on socket s.
* Handle result given on error and valid range and errno.
*/
static void
so_setfib(int s, int i, u_int dom, u_int type)
{
int error;
error = setsockopt(s, SOL_SOCKET, SO_SETFIB, &i, sizeof(i));
/* For out of bounds we expect an error. */
if (error == -1 && (i < 0 || i > rt_numfibs))
printf("ok %d %s_%s_%d\n", testno, t_dom[dom].name,
t_type[type].name, i);
else if (error != -1 && (i < 0 || i > rt_numfibs))
printf("not ok %d %s_%s_%d # setsockopt(%d, SOL_SOCKET, "
"SO_SETFIB, %d, ..) unexpectedly succeeded\n", testno,
t_dom[dom].name, t_type[type].name, i, s, i);
else if (error == 0)
printf("ok %d %s_%s_%d\n", testno, t_dom[dom].name,
t_type[type].name, i);
else if (errno != EINVAL)
printf("not ok %d %s_%s_%d # setsockopt(%d, SOL_SOCKET, "
"SO_SETFIB, %d, ..) unexpected error: %s\n", testno,
t_dom[dom].name, t_type[type].name, i, s, i,
strerror(errno));
else
printf("not ok %d %s_%s_%d\n", testno, t_dom[dom].name,
t_type[type].name, i);
/* Test run done, next please. */
testno++;
}
/*
* Main test. Open socket given domain family and type. For each FIB, out of
* bounds FIB numbers and 3 random FIB numbers set the socket option.
*/
static void
t(u_int dom, u_int type)
{
int i, s;
/* PF_ROUTE only supports RAW socket types, while PF_LOCAL does not. */
if (t_dom[dom].domain == PF_ROUTE && t_type[type].type != SOCK_RAW)
return;
if (t_dom[dom].domain == PF_LOCAL && t_type[type].type == SOCK_RAW)
return;
/* Open socket for given combination. */
s = socket(t_dom[dom].domain, t_type[type].type, 0);
if (s == -1) {
printf("not ok %d %s_%s # socket(): %s\n", testno,
t_dom[dom].name, t_type[type].name, strerror(errno));
testno++;
return;
}
/* Test FIBs -2, -1, 0, .. n, n + 1, n + 2. */
for (i = -2; i <= (rt_numfibs + 2); i++)
so_setfib(s, i, dom, type);
/* Test 3 random FIB numbers. */
for (i = 0; i < 3; i++)
so_setfib(s, (int)random(), dom, type);
/* Close socket. */
close(s);
}
/*
* Returns 0 if no program error, 1 on sysctlbyname error.
* Test results are communicated by printf("[not ]ok <n> ..").
*/
int
main(int argc __unused, char *argv[] __unused)
{
u_int i, j;
size_t s;
if (geteuid() != 0) {
printf("1..0 # SKIP: must be root\n");
return (0);
}
/* Initialize randomness. */
srandomdev();
/* Get number of FIBs supported by kernel. */
s = sizeof(rt_numfibs);
if (sysctlbyname("net.fibs", &rt_numfibs, &s, NULL, 0) == -1)
err(1, "sysctlbyname(net.fibs, ..)");
printf("1..%lu\n",
(nitems(t_dom) - 1) * nitems(t_type) * (2 + rt_numfibs + 2 + 3));
/* Adjust from number to index. */
rt_numfibs -= 1;
/* Run tests. */
for (i = 0; i < sizeof(t_dom) / sizeof(struct t_dom); i++)
for (j = 0; j < sizeof(t_type) / sizeof(struct t_type); j++)
t(i, j);
return (0);
}
/* end */
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