1 /*- 2 * Copyright (c) 2005 Andrey Simonenko 3 * Copyright (c) 2016 Maksym Sobolyev <sobomax@FreeBSD.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 struct uc_cfg { 31 int sock_type; 32 const char *sock_type_str; 33 bool debug; 34 const char *proc_name; 35 int sync_fd[2][2]; 36 int serv_sock_fd; 37 bool server_flag; 38 bool send_data_flag; 39 struct sockaddr_un serv_addr_sun; 40 bool send_array_flag; 41 pid_t client_pid; 42 struct { 43 char *buf_send; 44 char *buf_recv; 45 size_t buf_size; 46 u_int msg_num; 47 } ipc_msg; 48 struct { 49 uid_t uid; 50 uid_t euid; 51 gid_t gid; 52 gid_t egid; 53 gid_t *gid_arr; 54 int gid_num; 55 } proc_cred; 56 }; 57 58 extern struct uc_cfg uc_cfg; 59 60 int uc_check_msghdr(const struct msghdr *msghdr, size_t size); 61 int uc_check_cmsghdr(const struct cmsghdr *cmsghdr, int type, size_t size); 62 void uc_output(const char *format, ...) __printflike(1, 2); 63 void uc_logmsgx(const char *format, ...) __printflike(1, 2); 64 void uc_dbgmsg(const char *format, ...) __printflike(1, 2); 65 void uc_logmsg(const char *format, ...) __printflike(1, 2); 66 void uc_vlogmsgx(const char *format, va_list ap); 67 int uc_message_recv(int fd, struct msghdr *msghdr); 68 int uc_message_send(int fd, const struct msghdr *msghdr); 69 int uc_message_sendn(int fd, struct msghdr *msghdr); 70 void uc_msghdr_init_server(struct msghdr *msghdr, struct iovec *iov, 71 void *cmsg_data, size_t cmsg_size); 72 void uc_msghdr_init_client(struct msghdr *msghdr, struct iovec *iov, 73 void *cmsg_data, size_t cmsg_size, int type, size_t arr_size); 74 int uc_socket_create(void); 75 int uc_socket_accept(int listenfd); 76 int uc_socket_close(int fd); 77 int uc_socket_connect(int fd); 78 int uc_sync_recv(void); 79 int uc_sync_send(void); 80 int uc_client_fork(void); 81 void uc_client_exit(int rv); 82 int uc_client_wait(void); 83 int uc_check_groups(const char *gid_arr_str, const gid_t *gid_arr, 84 const char *gid_num_str, int gid_num, bool all_gids); 85 int uc_check_scm_creds_cmsgcred(struct cmsghdr *cmsghdr); 86 int uc_check_scm_creds_sockcred(struct cmsghdr *cmsghdr); 87