1 /* 2 * session.c - PPP session control. 3 * 4 * Copyright (c) 2007 Diego Rivera. 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 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * 2. The name(s) of the authors of this software must not be used to 14 * endorse or promote products derived from this software without 15 * prior written permission. 16 * 17 * 3. Redistributions of any form whatsoever must retain the following 18 * acknowledgment: 19 * "This product includes software developed by Paul Mackerras 20 * <paulus (at) samba.org>". 21 * 22 * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO 23 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 24 * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY 25 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 26 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN 27 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 28 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 29 */ 30 31 #ifndef __SESSION_H 32 #define __SESSION_H 33 34 #define SESS_AUTH 1 /* Check User Authentication */ 35 #define SESS_ACCT 2 /* Check Account Validity */ 36 37 /* Convenience parameter to do the whole enchilada */ 38 #define SESS_ALL (SESS_AUTH | SESS_ACCT) 39 40 /* 41 * int session_start(...) 42 * 43 * Start a session, performing any necessary validations. 44 * 45 * Parameters: 46 * const int flags : 47 * Any combination of the SESS_XXX flags, to indicate what the function 48 * should do as part of its checks 49 * 50 * const char* user : 51 * The username to validate. May safely be null. 52 * 53 * const char* passwd : 54 * The password to validate the user with. May safely be null. 55 * 56 * const char* tty : 57 * The TTY the user is connected on. May safely be null. 58 * 59 * char** msg : 60 * A char* to return an error or success message. This message will be returned 61 * regardless of the result. May safely be null. 62 * 63 * Return Value: 64 * Zero value for failure, non-zero value for successful session verification. 65 */ 66 int 67 session_start(const int flags, const char* user, const char* passwd, const char* tty, char** msg); 68 69 /* Added these macros for convenience... */ 70 #define session_auth(user, pass, tty, msg) \ 71 session_start(SESS_AUTH, user, pass, tty, msg) 72 73 #define session_check(user, pass, tty, msg) \ 74 session_start(SESS_ACCT, user, pass, tty, msg) 75 76 #define session_full(user, pass, tty, msg) \ 77 session_start(SESS_ALL, user, pass, tty, msg) 78 79 /* 80 * void session_end(...) 81 * 82 * End a previously-started session. 83 * 84 * Parameters: 85 * const char* tty : 86 * The TTY the user is connected on. May safely be null. 87 */ 88 void 89 session_end(const char* tty); 90 91 #endif 92
