/*-
* Copyright (c) 2005 Andrey Simonenko
* 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 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.
*/
#include <sys/cdefs.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <inttypes.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdlib.h>
#include "uc_common.h"
#include "t_generic.h"
#include "t_sockcred.h"
static int
t_sockcred_client(int type, int fd)
{
struct msghdr msghdr;
struct iovec iov[1];
int rv;
if (uc_sync_recv() < 0)
return (-2);
rv = -2;
uc_msghdr_init_client(&msghdr, iov, NULL, 0, 0, 0);
if (uc_socket_connect(fd) < 0)
goto done;
if (type == 2)
if (uc_sync_recv() < 0)
goto done;
if (uc_message_sendn(fd, &msghdr) < 0)
goto done;
rv = 0;
done:
return (rv);
}
static int
t_sockcred_server(int type, int fd1)
{
struct msghdr msghdr;
struct iovec iov[1];
struct cmsghdr *cmsghdr;
void *cmsg_data;
size_t cmsg_size;
u_int i;
int fd2, rv, val;
fd2 = -1;
rv = -2;
cmsg_size = CMSG_SPACE(SOCKCREDSIZE(uc_cfg.proc_cred.gid_num));
cmsg_data = malloc(cmsg_size);
if (cmsg_data == NULL) {
uc_logmsg("malloc");
goto done;
}
if (type == 1) {
uc_dbgmsg("setting LOCAL_CREDS");
val = 1;
if (setsockopt(fd1, 0, LOCAL_CREDS, &val, sizeof(val)) < 0) {
uc_logmsg("setsockopt(LOCAL_CREDS)");
goto done;
}
}
if (uc_sync_send() < 0)
goto done;
if (uc_cfg.sock_type == SOCK_STREAM) {
fd2 = uc_socket_accept(fd1);
if (fd2 < 0)
goto done;
} else
fd2 = fd1;
if (type == 2) {
uc_dbgmsg("setting LOCAL_CREDS");
val = 1;
if (setsockopt(fd2, 0, LOCAL_CREDS, &val, sizeof(val)) < 0) {
uc_logmsg("setsockopt(LOCAL_CREDS)");
goto done;
}
if (uc_sync_send() < 0)
goto done;
}
rv = -1;
for (i = 1; i <= uc_cfg.ipc_msg.msg_num; ++i) {
uc_dbgmsg("message #%u", i);
uc_msghdr_init_server(&msghdr, iov, cmsg_data, cmsg_size);
if (uc_message_recv(fd2, &msghdr) < 0) {
rv = -2;
break;
}
if (i > 1 && uc_cfg.sock_type == SOCK_STREAM) {
if (uc_check_msghdr(&msghdr, 0) < 0)
break;
} else {
if (uc_check_msghdr(&msghdr, sizeof(*cmsghdr)) < 0)
break;
cmsghdr = CMSG_FIRSTHDR(&msghdr);
if (uc_check_scm_creds_sockcred(cmsghdr) < 0)
break;
}
}
if (i > uc_cfg.ipc_msg.msg_num)
rv = 0;
done:
free(cmsg_data);
if (uc_cfg.sock_type == SOCK_STREAM && fd2 >= 0)
if (uc_socket_close(fd2) < 0)
rv = -2;
return (rv);
}
int
t_sockcred_1(void)
{
u_int i;
int fd, rv, rv_client;
switch (uc_client_fork()) {
case 0:
for (i = 1; i <= 2; ++i) {
uc_dbgmsg("client #%u", i);
fd = uc_socket_create();
if (fd < 0)
rv = -2;
else {
rv = t_sockcred_client(1, fd);
if (uc_socket_close(fd) < 0)
rv = -2;
}
if (rv != 0)
break;
}
uc_client_exit(rv);
break;
case 1:
fd = uc_socket_create();
if (fd < 0)
rv = -2;
else {
rv = t_sockcred_server(1, fd);
if (rv == 0)
rv = t_sockcred_server(3, fd);
rv_client = uc_client_wait();
if (rv == 0 || (rv == -2 && rv_client != 0))
rv = rv_client;
if (uc_socket_close(fd) < 0)
rv = -2;
}
break;
default:
rv = -2;
}
return (rv);
}
static int
t_sockcred_2_client(int fd)
{
return (t_sockcred_client(2, fd));
}
static int
t_sockcred_2_server(int fd)
{
return (t_sockcred_server(2, fd));
}
int
t_sockcred_2(void)
{
return (t_generic(t_sockcred_2_client, t_sockcred_2_server));
}
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