int pam_sm_authenticate(pam_handle_t *pamh, int flags,
int argc, const char **argv)
{
unsigned int ctrl;
int retval, *ret_data = NULL;
struct samu *sampass = NULL;
const char *name;
void (*oldsig_handler)(int) = NULL;
bool found;
/* Points to memory managed by the PAM library. Do not free. */
char *p = NULL;
/* Samba initialization. */
load_case_tables();
lp_set_in_client(True);
ctrl = set_ctrl(pamh, flags, argc, argv);
/* Get a few bytes so we can pass our return value to
pam_sm_setcred(). */
ret_data = SMB_MALLOC_P(int);
/* we need to do this before we call AUTH_RETURN */
/* Getting into places that might use LDAP -- protect the app
from a SIGPIPE it's not expecting */
oldsig_handler = CatchSignal(SIGPIPE, SIGNAL_CAST SIG_IGN);
/* get the username */
retval = pam_get_user( pamh, &name, "Username: "******"auth: could not identify user");
}
AUTH_RETURN;
}
if (on( SMB_DEBUG, ctrl )) {
_log_err(pamh, LOG_DEBUG, "username [%s] obtained", name );
}
if (geteuid() != 0) {
_log_err(pamh, LOG_DEBUG, "Cannot access samba password database, not running as root.");
retval = PAM_AUTHINFO_UNAVAIL;
AUTH_RETURN;
}
if (!initialize_password_db(True, NULL)) {
_log_err(pamh, LOG_ALERT, "Cannot access samba password database" );
retval = PAM_AUTHINFO_UNAVAIL;
AUTH_RETURN;
}
sampass = samu_new( NULL );
if (!sampass) {
_log_err(pamh, LOG_ALERT, "Cannot talloc a samu struct" );
retval = nt_status_to_pam(NT_STATUS_NO_MEMORY);
AUTH_RETURN;
}
found = pdb_getsampwnam( sampass, name );
if (on( SMB_MIGRATE, ctrl )) {
retval = _smb_add_user(pamh, ctrl, name, sampass, found);
TALLOC_FREE(sampass);
AUTH_RETURN;
}
if (!found) {
_log_err(pamh, LOG_ALERT, "Failed to find entry for user %s.", name);
retval = PAM_USER_UNKNOWN;
TALLOC_FREE(sampass);
sampass = NULL;
AUTH_RETURN;
}
/* if this user does not have a password... */
if (_smb_blankpasswd( ctrl, sampass )) {
TALLOC_FREE(sampass);
retval = PAM_SUCCESS;
AUTH_RETURN;
}
/* get this user's authentication token */
retval = _smb_read_password(pamh, ctrl, NULL, "Password: "******"auth: no password provided for [%s]", name);
TALLOC_FREE(sampass);
AUTH_RETURN;
}
/* verify the password of this user */
retval = _smb_verify_password( pamh, sampass, p, ctrl );
TALLOC_FREE(sampass);
p = NULL;
AUTH_RETURN;
}
int pam_sm_authenticate(pam_handle_t *pamh, int flags,
int argc, const char **argv)
{
unsigned int ctrl;
int retval, *ret_data = NULL;
SAM_ACCOUNT *sampass = NULL;
extern BOOL in_client;
const char *name;
void (*oldsig_handler)(int);
BOOL found;
/* Points to memory managed by the PAM library. Do not free. */
char *p = NULL;
/* Samba initialization. */
setup_logging("pam_smbpass",False);
in_client = True;
ctrl = set_ctrl(flags, argc, argv);
/* Get a few bytes so we can pass our return value to
pam_sm_setcred(). */
ret_data = malloc(sizeof(int));
/* get the username */
retval = pam_get_user( pamh, &name, "Username: "******"auth: could not identify user");
}
AUTH_RETURN;
}
if (on( SMB_DEBUG, ctrl )) {
_log_err( LOG_DEBUG, "username [%s] obtained", name );
}
/* Getting into places that might use LDAP -- protect the app
from a SIGPIPE it's not expecting */
oldsig_handler = CatchSignal(SIGPIPE, SIGNAL_CAST SIG_IGN);
if (!initialize_password_db(True)) {
_log_err( LOG_ALERT, "Cannot access samba password database" );
retval = PAM_AUTHINFO_UNAVAIL;
AUTH_RETURN;
}
pdb_init_sam(&sampass);
found = pdb_getsampwnam( sampass, name );
if (on( SMB_MIGRATE, ctrl )) {
retval = _smb_add_user(pamh, ctrl, name, sampass, found);
pdb_free_sam(&sampass);
AUTH_RETURN;
}
if (!found) {
_log_err(LOG_ALERT, "Failed to find entry for user %s.", name);
retval = PAM_USER_UNKNOWN;
pdb_free_sam(&sampass);
sampass = NULL;
AUTH_RETURN;
}
/* if this user does not have a password... */
if (_smb_blankpasswd( ctrl, sampass )) {
pdb_free_sam(&sampass);
retval = PAM_SUCCESS;
AUTH_RETURN;
}
/* get this user's authentication token */
retval = _smb_read_password(pamh, ctrl, NULL, "Password: "******"auth: no password provided for [%s]"
, name);
pdb_free_sam(&sampass);
AUTH_RETURN;
}
/* verify the password of this user */
retval = _smb_verify_password( pamh, sampass, p, ctrl );
pdb_free_sam(&sampass);
p = NULL;
AUTH_RETURN;
}
