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util-linux
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login: add audit support 

The login command reports AUDIT_USER_LOGIN message to audit system
(depends on --with-audit).

Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
Karel Zak 2007-03-12 14:26:34 +01:00
parent bbae9cb03e
commit f8bdba2fd2
2 changed files with 37 additions and 0 deletions
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3
login-utils/Makefile.am
View File

@ -67,6 +67,9 @@ else
login_SOURCES = login.c checktty.c login.h my_crypt.h
endif
if HAVE_AUDIT
login_LDADD += -laudit
endif
if HAVE_SELINUX
chfn_SOURCES += selinux_utils.c selinux_utils.h

34
login-utils/login.c
View File

@ -106,6 +106,9 @@
#include <sys/syslog.h>
#include <sys/sysmacros.h>
#include <netdb.h>
#ifdef HAVE_LIBAUDIT
# include <libaudit.h>
#endif
#include "pathnames.h"
#include "my_crypt.h"
#include "login.h"
@ -316,6 +319,33 @@ sig_handler(int signal)
#endif /* HAVE_SECURITY_PAM_MISC_H */
#ifdef HAVE_LIBAUDIT
static void
logaudit(const char *tty, const char *username, const char *hostname,
struct passwd *pwd, int status)
{
char buf[64];
int audit_fd;
audit_fd = audit_open();
if (audit_fd == -1)
return;
if (!pwd)
pwd = getpwnam(username);
if (pwd)
snprintf(buf, sizeof(buf), "uid=%d", pwd->pw_uid);
else
snprintf(buf, sizeof(buf), "acct=%s", username);
audit_log_user_message(audit_fd, AUDIT_USER_LOGIN,
buf, hostname, NULL, tty, status);
close(audit_fd);
}
#else /* ! HAVE_LIBAUDIT */
# define logaudit(tty, username, hostname, pwd, status)
#endif /* HAVE_LIBAUDIT */
int
main(int argc, char **argv)
{
@ -580,6 +610,7 @@ main(int argc, char **argv)
syslog(LOG_NOTICE,_("FAILED LOGIN %d FROM %s FOR %s, %s"),
failcount, hostname, username, pam_strerror(pamh, retcode));
logbtmp(tty_name, username, hostname);
logaudit(tty_name, username, hostname, NULL, 0);
fprintf(stderr,_("Login incorrect\n\n"));
pam_set_item(pamh,PAM_USER,NULL);
@ -597,6 +628,7 @@ main(int argc, char **argv)
syslog(LOG_NOTICE,_("FAILED LOGIN SESSION FROM %s FOR %s, %s"),
hostname, username, pam_strerror(pamh, retcode));
logbtmp(tty_name, username, hostname);
logaudit(tty_name, username, hostname, NULL, 0);
fprintf(stderr,_("\nLogin incorrect\n"));
pam_end(pamh, retcode);
@ -751,6 +783,7 @@ main(int argc, char **argv)
syslog(LOG_NOTICE,
_("LOGIN %s REFUSED ON TTY %s"),
pwd->pw_name, tty_name);
logaudit(tty_name, pwd->pw_name, hostname, pwd, 0);
continue;
}
@ -948,6 +981,7 @@ Michael Riepe <michael@stud.uni-hannover.de>
#endif
}
logaudit(tty_name, username, hostname, pwd, 1);
dolastlog(quietlog);
chown(ttyn, pwd->pw_uid,