/*-
* 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>
__FBSDID("$FreeBSD$");
#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_cmsgcred.h"
int
t_cmsgcred_client(int fd)
{
struct msghdr msghdr;
struct iovec iov[1];
void *cmsg_data;
size_t cmsg_size;
int rv;
if (uc_sync_recv() < 0)
return (-2);
rv = -2;
cmsg_size = CMSG_SPACE(sizeof(struct cmsgcred));
cmsg_data = malloc(cmsg_size);
if (cmsg_data == NULL) {
uc_logmsg("malloc");
goto done;
}
uc_msghdr_init_client(&msghdr, iov, cmsg_data, cmsg_size,
SCM_CREDS, sizeof(struct cmsgcred));
if (uc_socket_connect(fd) < 0)
goto done;
if (uc_message_sendn(fd, &msghdr) < 0)
goto done;
rv = 0;
done:
free(cmsg_data);
return (rv);
}
static int
t_cmsgcred_server(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;
if (uc_sync_send() < 0)
return (-2);
fd2 = -1;
rv = -2;
cmsg_size = CMSG_SPACE(sizeof(struct cmsgcred));
cmsg_data = malloc(cmsg_size);
if (cmsg_data == NULL) {
uc_logmsg("malloc");
goto done;
}
if (uc_cfg.sock_type == SOCK_STREAM) {
fd2 = uc_socket_accept(fd1);
if (fd2 < 0)
goto done;
} else
fd2 = fd1;
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 (uc_check_msghdr(&msghdr, sizeof(*cmsghdr)) < 0)
break;
cmsghdr = CMSG_FIRSTHDR(&msghdr);
if (uc_check_scm_creds_cmsgcred(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_cmsgcred(void)
{
return (t_generic(t_cmsgcred_client, t_cmsgcred_server));
}