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/*-
* Copyright (c) 2014 Spectra Logic Corporation. All rights reserved.
* 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 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 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.
*/
#include <sys/cdefs.h>
#include <stdbool.h>
#include <stdio.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <atf-c.h>
const char create_pat[] = "!system=DEVFS subsystem=CDEV type=CREATE cdev=md";
const char destroy_pat[] = "!system=DEVFS subsystem=CDEV type=DESTROY cdev=md";
/* Helper functions*/
/*
* Create two devd events. The easiest way I know of, that requires no special
* hardware, is to create md(4) devices.
*/
static void
create_two_events(void)
{
FILE *create_stdout;
FILE *destroy_stdout;
char mdname[80];
char destroy_cmd[95];
char *error;
create_stdout = popen("mdconfig -a -s 64 -t null", "r");
ATF_REQUIRE(create_stdout != NULL);
error = fgets(mdname, sizeof(mdname), create_stdout);
ATF_REQUIRE(error != NULL);
/* We only expect one line of output */
ATF_REQUIRE_EQ(0, pclose(create_stdout));
snprintf(destroy_cmd, nitems(destroy_cmd), "mdconfig -d -u %s", mdname);
destroy_stdout = popen(destroy_cmd, "r");
ATF_REQUIRE(destroy_stdout != NULL);
/* We expect no output */
ATF_REQUIRE_EQ(0, pclose(destroy_stdout));
}
/* Setup and return an open client socket */
static int
common_setup(int socktype, const char* sockpath) {
struct sockaddr_un devd_addr;
int s, error;
memset(&devd_addr, 0, sizeof(devd_addr));
devd_addr.sun_family = PF_LOCAL;
strlcpy(devd_addr.sun_path, sockpath, sizeof(devd_addr.sun_path));
s = socket(PF_LOCAL, socktype, 0);
ATF_REQUIRE(s >= 0);
error = connect(s, (struct sockaddr*)&devd_addr, SUN_LEN(&devd_addr));
ATF_REQUIRE_EQ(0, error);
create_two_events();
return (s);
}
/*
* Test Cases
*/
/*
* Open a client connection to devd, create some events, and test that they can
* be read _whole_ and _one_at_a_time_ from the socket
*/
ATF_TC_WITHOUT_HEAD(seqpacket);
ATF_TC_BODY(seqpacket, tc)
{
int s;
bool got_create_event = false;
bool got_destroy_event = false;
s = common_setup(SOCK_SEQPACKET, "/var/run/devd.seqpacket.pipe");
/*
* Loop until both events are detected on _different_ reads
* There may be extra events due to unrelated system activity
* If we never get both events, then the test will timeout.
*/
while (!(got_create_event && got_destroy_event)) {
int cmp;
ssize_t len;
char event[1024];
/* Read 1 less than sizeof(event) to allow space for NULL */
len = recv(s, event, sizeof(event) - 1, MSG_WAITALL);
ATF_REQUIRE(len != -1);
/* NULL terminate the result */
event[len] = '\0';
printf("%s", event);
cmp = strncmp(event, create_pat, sizeof(create_pat) - 1);
if (cmp == 0)
got_create_event = true;
cmp = strncmp(event, destroy_pat, sizeof(destroy_pat) - 1);
if (cmp == 0)
got_destroy_event = true;
}
close(s);
}
/*
* Open a client connection to devd using the stream socket, create some
* events, and test that they can be read in any number of reads.
*/
ATF_TC_WITHOUT_HEAD(stream);
ATF_TC_BODY(stream, tc)
{
int s;
bool got_create_event = false;
bool got_destroy_event = false;
ssize_t len = 0;
s = common_setup(SOCK_STREAM, "/var/run/devd.pipe");
/*
* Loop until both events are detected on the same or different reads.
* There may be extra events due to unrelated system activity.
* If we never get both events, then the test will timeout.
*/
while (!(got_create_event && got_destroy_event)) {
char event[1024];
ssize_t newlen;
char *create_pos, *destroy_pos;
/* Read 1 less than sizeof(event) to allow space for NULL */
newlen = read(s, &event[len], sizeof(event) - len - 1);
ATF_REQUIRE(newlen != -1);
len += newlen;
/* NULL terminate the result */
event[len] = '\0';
printf("%s", event);
create_pos = strstr(event, create_pat);
if (create_pos != NULL)
got_create_event = true;
destroy_pos = strstr(event, destroy_pat);
if (destroy_pos != NULL)
got_destroy_event = true;
}
close(s);
}
/*
* Main.
*/
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, seqpacket);
ATF_TP_ADD_TC(tp, stream);
return (atf_no_error());
}
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