/*-
* Copyright (c) 2005 Andrey Simonenko
* Copyright (c) 2016 Maksym Sobolyev <sobomax@FreeBSD.org>
* 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.
*/
struct uc_cfg {
int sock_type;
const char *sock_type_str;
bool debug;
const char *proc_name;
int sync_fd[2][2];
int serv_sock_fd;
bool server_flag;
bool send_data_flag;
struct sockaddr_un serv_addr_sun;
bool send_array_flag;
pid_t client_pid;
struct {
char *buf_send;
char *buf_recv;
size_t buf_size;
u_int msg_num;
} ipc_msg;
struct {
uid_t uid;
uid_t euid;
gid_t gid;
gid_t egid;
gid_t *gid_arr;
int gid_num;
} proc_cred;
};
extern struct uc_cfg uc_cfg;
int uc_check_msghdr(const struct msghdr *msghdr, size_t size);
int uc_check_cmsghdr(const struct cmsghdr *cmsghdr, int type, size_t size);
void uc_output(const char *format, ...) __printflike(1, 2);
void uc_logmsgx(const char *format, ...) __printflike(1, 2);
void uc_dbgmsg(const char *format, ...) __printflike(1, 2);
void uc_logmsg(const char *format, ...) __printflike(1, 2);
void uc_vlogmsgx(const char *format, va_list ap);
int uc_message_recv(int fd, struct msghdr *msghdr);
int uc_message_send(int fd, const struct msghdr *msghdr);
int uc_message_sendn(int fd, struct msghdr *msghdr);
void uc_msghdr_init_server(struct msghdr *msghdr, struct iovec *iov,
void *cmsg_data, size_t cmsg_size);
void uc_msghdr_init_client(struct msghdr *msghdr, struct iovec *iov,
void *cmsg_data, size_t cmsg_size, int type, size_t arr_size);
int uc_socket_create(void);
int uc_socket_accept(int listenfd);
int uc_socket_close(int fd);
int uc_socket_connect(int fd);
int uc_sync_recv(void);
int uc_sync_send(void);
int uc_client_fork(void);
void uc_client_exit(int rv);
int uc_client_wait(void);
int uc_check_groups(const char *gid_arr_str, const gid_t *gid_arr,
const char *gid_num_str, int gid_num, bool all_gids);
int uc_check_scm_creds_cmsgcred(struct cmsghdr *cmsghdr);
int uc_check_scm_creds_sockcred(struct cmsghdr *cmsghdr);
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