1*1fab62b1SMaxim Sobolev /*- 2*1fab62b1SMaxim Sobolev * Copyright (c) 2005 Andrey Simonenko 3*1fab62b1SMaxim Sobolev * Copyright (c) 2016 Maksym Sobolyev <sobomax@FreeBSD.org> 4*1fab62b1SMaxim Sobolev * All rights reserved. 5*1fab62b1SMaxim Sobolev * 6*1fab62b1SMaxim Sobolev * Redistribution and use in source and binary forms, with or without 7*1fab62b1SMaxim Sobolev * modification, are permitted provided that the following conditions 8*1fab62b1SMaxim Sobolev * are met: 9*1fab62b1SMaxim Sobolev * 1. Redistributions of source code must retain the above copyright 10*1fab62b1SMaxim Sobolev * notice, this list of conditions and the following disclaimer. 11*1fab62b1SMaxim Sobolev * 2. Redistributions in binary form must reproduce the above copyright 12*1fab62b1SMaxim Sobolev * notice, this list of conditions and the following disclaimer in the 13*1fab62b1SMaxim Sobolev * documentation and/or other materials provided with the distribution. 14*1fab62b1SMaxim Sobolev * 15*1fab62b1SMaxim Sobolev * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16*1fab62b1SMaxim Sobolev * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17*1fab62b1SMaxim Sobolev * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18*1fab62b1SMaxim Sobolev * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19*1fab62b1SMaxim Sobolev * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20*1fab62b1SMaxim Sobolev * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21*1fab62b1SMaxim Sobolev * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22*1fab62b1SMaxim Sobolev * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23*1fab62b1SMaxim Sobolev * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24*1fab62b1SMaxim Sobolev * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25*1fab62b1SMaxim Sobolev * SUCH DAMAGE. 26*1fab62b1SMaxim Sobolev */ 27*1fab62b1SMaxim Sobolev 28*1fab62b1SMaxim Sobolev struct uc_cfg { 29*1fab62b1SMaxim Sobolev int sock_type; 30*1fab62b1SMaxim Sobolev const char *sock_type_str; 31*1fab62b1SMaxim Sobolev bool debug; 32*1fab62b1SMaxim Sobolev const char *proc_name; 33*1fab62b1SMaxim Sobolev int sync_fd[2][2]; 34*1fab62b1SMaxim Sobolev int serv_sock_fd; 35*1fab62b1SMaxim Sobolev bool server_flag; 36*1fab62b1SMaxim Sobolev bool send_data_flag; 37*1fab62b1SMaxim Sobolev struct sockaddr_un serv_addr_sun; 38*1fab62b1SMaxim Sobolev bool send_array_flag; 39*1fab62b1SMaxim Sobolev pid_t client_pid; 40*1fab62b1SMaxim Sobolev struct { 41*1fab62b1SMaxim Sobolev char *buf_send; 42*1fab62b1SMaxim Sobolev char *buf_recv; 43*1fab62b1SMaxim Sobolev size_t buf_size; 44*1fab62b1SMaxim Sobolev u_int msg_num; 45*1fab62b1SMaxim Sobolev } ipc_msg; 46*1fab62b1SMaxim Sobolev struct { 47*1fab62b1SMaxim Sobolev uid_t uid; 48*1fab62b1SMaxim Sobolev uid_t euid; 49*1fab62b1SMaxim Sobolev gid_t gid; 50*1fab62b1SMaxim Sobolev gid_t egid; 51*1fab62b1SMaxim Sobolev gid_t *gid_arr; 52*1fab62b1SMaxim Sobolev int gid_num; 53*1fab62b1SMaxim Sobolev } proc_cred; 54*1fab62b1SMaxim Sobolev }; 55*1fab62b1SMaxim Sobolev 56*1fab62b1SMaxim Sobolev extern struct uc_cfg uc_cfg; 57*1fab62b1SMaxim Sobolev 58*1fab62b1SMaxim Sobolev int uc_check_msghdr(const struct msghdr *msghdr, size_t size); 59*1fab62b1SMaxim Sobolev int uc_check_cmsghdr(const struct cmsghdr *cmsghdr, int type, size_t size); 60*1fab62b1SMaxim Sobolev void uc_output(const char *format, ...) __printflike(1, 2); 61*1fab62b1SMaxim Sobolev void uc_logmsgx(const char *format, ...) __printflike(1, 2); 62*1fab62b1SMaxim Sobolev void uc_dbgmsg(const char *format, ...) __printflike(1, 2); 63*1fab62b1SMaxim Sobolev void uc_logmsg(const char *format, ...) __printflike(1, 2); 64*1fab62b1SMaxim Sobolev void uc_vlogmsgx(const char *format, va_list ap); 65*1fab62b1SMaxim Sobolev int uc_message_recv(int fd, struct msghdr *msghdr); 66*1fab62b1SMaxim Sobolev int uc_message_send(int fd, const struct msghdr *msghdr); 67*1fab62b1SMaxim Sobolev int uc_message_sendn(int fd, struct msghdr *msghdr); 68*1fab62b1SMaxim Sobolev void uc_msghdr_init_server(struct msghdr *msghdr, struct iovec *iov, 69*1fab62b1SMaxim Sobolev void *cmsg_data, size_t cmsg_size); 70*1fab62b1SMaxim Sobolev void uc_msghdr_init_client(struct msghdr *msghdr, struct iovec *iov, 71*1fab62b1SMaxim Sobolev void *cmsg_data, size_t cmsg_size, int type, size_t arr_size); 72*1fab62b1SMaxim Sobolev int uc_socket_create(void); 73*1fab62b1SMaxim Sobolev int uc_socket_accept(int listenfd); 74*1fab62b1SMaxim Sobolev int uc_socket_close(int fd); 75*1fab62b1SMaxim Sobolev int uc_socket_connect(int fd); 76*1fab62b1SMaxim Sobolev int uc_sync_recv(void); 77*1fab62b1SMaxim Sobolev int uc_sync_send(void); 78*1fab62b1SMaxim Sobolev int uc_client_fork(void); 79*1fab62b1SMaxim Sobolev void uc_client_exit(int rv); 80*1fab62b1SMaxim Sobolev int uc_client_wait(void); 81*1fab62b1SMaxim Sobolev int uc_check_groups(const char *gid_arr_str, const gid_t *gid_arr, 82*1fab62b1SMaxim Sobolev const char *gid_num_str, int gid_num, bool all_gids); 83*1fab62b1SMaxim Sobolev int uc_check_scm_creds_cmsgcred(struct cmsghdr *cmsghdr); 84*1fab62b1SMaxim Sobolev int uc_check_scm_creds_sockcred(struct cmsghdr *cmsghdr); 85