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loginrec.h
1 #ifndef _HAVE_LOGINREC_H_
2 #define _HAVE_LOGINREC_H_
3 
4 /*
5  * Copyright (c) 2000 Andre Lucas. All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  * notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  * notice, this list of conditions and the following disclaimer in the
14  * documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
32 #include "includes.h"
33 
34 struct ssh;
35 
40 /*
41  * login_netinfo structure
42  */
43 
44 union login_netinfo {
45  struct sockaddr sa;
46  struct sockaddr_in sa_in;
47  struct sockaddr_storage sa_storage;
48 };
49 
50 /*
51  * * logininfo structure *
52  */
53 /* types - different to utmp.h 'type' macros */
54 /* (though set to the same value as linux, openbsd and others...) */
55 #define LTYPE_LOGIN 7
56 #define LTYPE_LOGOUT 8
57 
58 /* string lengths - set very long */
59 #define LINFO_PROGSIZE 64
60 #define LINFO_LINESIZE 64
61 #define LINFO_NAMESIZE 512
62 #define LINFO_HOSTSIZE 256
63 
64 struct logininfo {
65  char progname[LINFO_PROGSIZE]; /* name of program (for PAM) */
66  int progname_null;
67  short int type; /* type of login (LTYPE_*) */
68  pid_t pid; /* PID of login process */
69  uid_t uid; /* UID of this user */
70  char line[LINFO_LINESIZE]; /* tty/pty name */
71  char username[LINFO_NAMESIZE]; /* login username */
72  char hostname[LINFO_HOSTSIZE]; /* remote hostname */
73  /* 'exit_status' structure components */
74  int exit; /* process exit status */
75  int termination; /* process termination status */
76  /* struct timeval (sys/time.h) isn't always available, if it isn't we'll
77  * use time_t's value as tv_sec and set tv_usec to 0
78  */
79  unsigned int tv_sec;
80  unsigned int tv_usec;
81  union login_netinfo hostaddr; /* caller's host address(es) */
82 }; /* struct logininfo */
83 
84 /*
85  * login recording functions
86  */
87 
90 /* construct a new login entry */
91 struct logininfo *login_alloc_entry(pid_t pid, const char *username,
92  const char *hostname, const char *line);
93 /* free a structure */
94 void login_free_entry(struct logininfo *li);
95 /* fill out a pre-allocated structure with useful information */
96 int login_init_entry(struct logininfo *li, pid_t pid, const char *username,
97  const char *hostname, const char *line);
98 /* place the current time in a logininfo struct */
99 void login_set_current_time(struct logininfo *li);
100 
101 /* record the entry */
102 int login_login (struct logininfo *li);
103 int login_logout(struct logininfo *li);
104 #ifdef LOGIN_NEEDS_UTMPX
105 int login_utmp_only(struct logininfo *li);
106 #endif
107 
110 /* record the entry */
111 int login_write (struct logininfo *li);
112 int login_log_entry(struct logininfo *li);
113 
114 /* set the network address based on network address type */
115 void login_set_addr(struct logininfo *li, const struct sockaddr *sa,
116  const unsigned int sa_size);
117 
118 /*
119  * lastlog retrieval functions
120  */
121 /* lastlog *entry* functions fill out a logininfo */
122 struct logininfo *login_get_lastlog(struct logininfo *li, const uid_t uid);
123 /* lastlog *time* functions return time_t equivalent (uint) */
124 unsigned int login_get_lastlog_time(const uid_t uid);
125 
126 /* produce various forms of the line filename */
127 char *line_fullname(char *dst, const char *src, u_int dstsize);
128 char *line_stripname(char *dst, const char *src, int dstsize);
129 char *line_abbrevname(char *dst, const char *src, int dstsize);
130 
131 void record_failed_login(struct ssh *, const char *, const char *,
132  const char *);
133 
134 #endif /* _HAVE_LOGINREC_H_ */
login_netinfo
Definition: loginrec.h:44
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