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Diffstat (limited to 'source3/passdb/pass_check.c')
-rw-r--r--source3/passdb/pass_check.c825
1 files changed, 459 insertions, 366 deletions
diff --git a/source3/passdb/pass_check.c b/source3/passdb/pass_check.c
index 11ce0d754e..c3e5669747 100644
--- a/source3/passdb/pass_check.c
+++ b/source3/passdb/pass_check.c
@@ -27,9 +27,9 @@
extern int DEBUGLEVEL;
/* these are kept here to keep the string_combinations function simple */
-static char this_user[100]="";
-static char this_salt[100]="";
-static char this_crypted[100]="";
+static char this_user[100] = "";
+static char this_salt[100] = "";
+static char this_crypted[100] = "";
#ifdef WITH_PAM
@@ -49,88 +49,94 @@ static char *PAM_password;
* Here we assume (for now, at least) that echo on means login name, and
* echo off means password.
*/
-static int PAM_conv (int num_msg,
- const struct pam_message **msg,
- struct pam_response **resp,
- void *appdata_ptr) {
- int replies = 0;
- struct pam_response *reply = NULL;
-
- #define COPY_STRING(s) (s) ? strdup(s) : NULL
-
- reply = malloc(sizeof(struct pam_response) * num_msg);
- if (!reply) return PAM_CONV_ERR;
-
- for (replies = 0; replies < num_msg; replies++) {
- switch (msg[replies]->msg_style) {
- case PAM_PROMPT_ECHO_ON:
- reply[replies].resp_retcode = PAM_SUCCESS;
- reply[replies].resp = COPY_STRING(PAM_username);
- /* PAM frees resp */
- break;
- case PAM_PROMPT_ECHO_OFF:
- reply[replies].resp_retcode = PAM_SUCCESS;
- reply[replies].resp = COPY_STRING(PAM_password);
- /* PAM frees resp */
- break;
- case PAM_TEXT_INFO:
- /* fall through */
- case PAM_ERROR_MSG:
- /* ignore it... */
- reply[replies].resp_retcode = PAM_SUCCESS;
- reply[replies].resp = NULL;
- break;
- default:
- /* Must be an error of some sort... */
- free (reply);
- return PAM_CONV_ERR;
- }
- }
- if (reply) *resp = reply;
- return PAM_SUCCESS;
+static int PAM_conv(int num_msg,
+ const struct pam_message **msg,
+ struct pam_response **resp, void *appdata_ptr)
+{
+ int replies = 0;
+ struct pam_response *reply = NULL;
+
+#define COPY_STRING(s) (s) ? strdup(s) : NULL
+
+ reply = malloc(sizeof(struct pam_response) * num_msg);
+ if (!reply)
+ return PAM_CONV_ERR;
+
+ for (replies = 0; replies < num_msg; replies++)
+ {
+ switch (msg[replies]->msg_style)
+ {
+ case PAM_PROMPT_ECHO_ON:
+ reply[replies].resp_retcode = PAM_SUCCESS;
+ reply[replies].resp =
+ COPY_STRING(PAM_username);
+ /* PAM frees resp */
+ break;
+ case PAM_PROMPT_ECHO_OFF:
+ reply[replies].resp_retcode = PAM_SUCCESS;
+ reply[replies].resp =
+ COPY_STRING(PAM_password);
+ /* PAM frees resp */
+ break;
+ case PAM_TEXT_INFO:
+ /* fall through */
+ case PAM_ERROR_MSG:
+ /* ignore it... */
+ reply[replies].resp_retcode = PAM_SUCCESS;
+ reply[replies].resp = NULL;
+ break;
+ default:
+ /* Must be an error of some sort... */
+ free(reply);
+ return PAM_CONV_ERR;
+ }
+ }
+ if (reply)
+ *resp = reply;
+ return PAM_SUCCESS;
}
static struct pam_conv PAM_conversation = {
- &PAM_conv,
- NULL
+ &PAM_conv,
+ NULL
};
-static BOOL pam_auth(char *user,char *password)
+static BOOL pam_auth(char *user, char *password)
{
- pam_handle_t *pamh;
- int pam_error;
-
- /* Now use PAM to do authentication. For now, we won't worry about
- * session logging, only authentication. Bail out if there are any
- * errors. Since this is a limited protocol, and an even more limited
- * function within a server speaking this protocol, we can't be as
- * verbose as would otherwise make sense.
- * Query: should we be using PAM_SILENT to shut PAM up?
- */
- #define PAM_BAIL if (pam_error != PAM_SUCCESS) { \
+ pam_handle_t *pamh;
+ int pam_error;
+
+ /* Now use PAM to do authentication. For now, we won't worry about
+ * session logging, only authentication. Bail out if there are any
+ * errors. Since this is a limited protocol, and an even more limited
+ * function within a server speaking this protocol, we can't be as
+ * verbose as would otherwise make sense.
+ * Query: should we be using PAM_SILENT to shut PAM up?
+ */
+#define PAM_BAIL if (pam_error != PAM_SUCCESS) { \
pam_end(pamh, 0); return False; \
}
- PAM_password = password;
- PAM_username = user;
- pam_error = pam_start("samba", user, &PAM_conversation, &pamh);
- PAM_BAIL;
+ PAM_password = password;
+ PAM_username = user;
+ pam_error = pam_start("samba", user, &PAM_conversation, &pamh);
+ PAM_BAIL;
/* Setting PAM_SILENT stops generation of error messages to syslog
* to enable debugging on Red Hat Linux set:
* /etc/pam.d/samba:
* auth required /lib/security/pam_pwdb.so nullok shadow audit
* _OR_ change PAM_SILENT to 0 to force detailed reporting (logging)
*/
- pam_error = pam_authenticate(pamh, PAM_SILENT);
- PAM_BAIL;
- /* It is not clear to me that account management is the right thing
- * to do, but it is not clear that it isn't, either. This can be
- * removed if no account management should be done. Alternately,
- * put a pam_allow.so entry in /etc/pam.conf for account handling. */
- pam_error = pam_acct_mgmt(pamh, PAM_SILENT);
- PAM_BAIL;
- pam_end(pamh, PAM_SUCCESS);
- /* If this point is reached, the user has been authenticated. */
- return(True);
+ pam_error = pam_authenticate(pamh, PAM_SILENT);
+ PAM_BAIL;
+ /* It is not clear to me that account management is the right thing
+ * to do, but it is not clear that it isn't, either. This can be
+ * removed if no account management should be done. Alternately,
+ * put a pam_allow.so entry in /etc/pam.conf for account handling. */
+ pam_error = pam_acct_mgmt(pamh, PAM_SILENT);
+ PAM_BAIL;
+ pam_end(pamh, PAM_SUCCESS);
+ /* If this point is reached, the user has been authenticated. */
+ return (True);
}
#endif
@@ -143,27 +149,27 @@ static BOOL pam_auth(char *user,char *password)
/*******************************************************************
check on AFS authentication
********************************************************************/
-static BOOL afs_auth(char *user,char *password)
+static BOOL afs_auth(char *user, char *password)
{
long password_expires = 0;
char *reason;
-
+
/* For versions of AFS prior to 3.3, this routine has few arguments, */
/* but since I can't find the old documentation... :-) */
setpag();
- if (ka_UserAuthenticateGeneral(KA_USERAUTH_VERSION+KA_USERAUTH_DOSETPAG,
- user,
- (char *) 0, /* instance */
- (char *) 0, /* cell */
- password,
- 0, /* lifetime, default */
- &password_expires, /*days 'til it expires */
- 0, /* spare 2 */
- &reason) == 0) {
- return(True);
- }
- DEBUG(1,("AFS authentication for \"%s\" failed (%s)\n", user, reason));
- return(False);
+ if (ka_UserAuthenticateGeneral
+ (KA_USERAUTH_VERSION + KA_USERAUTH_DOSETPAG, user, (char *)0, /* instance */
+ (char *)0, /* cell */
+ password, 0, /* lifetime, default */
+ &password_expires, /*days 'til it expires */
+ 0, /* spare 2 */
+ &reason) == 0)
+ {
+ return (True);
+ }
+ DEBUG(1,
+ ("AFS authentication for \"%s\" failed (%s)\n", user, reason));
+ return (False);
}
#endif
@@ -192,7 +198,7 @@ int dcelogin_atmost_once = 0;
/*******************************************************************
check on a DCE/DFS authentication
********************************************************************/
-static BOOL dfs_auth(char *user,char *password)
+static BOOL dfs_auth(char *user, char *password)
{
error_status_t err;
int err2;
@@ -205,7 +211,8 @@ static BOOL dfs_auth(char *user,char *password)
unsigned char dce_errstr[dce_c_error_string_len];
gid_t egid;
- if (dcelogin_atmost_once) return(False);
+ if (dcelogin_atmost_once)
+ return (False);
#ifdef HAVE_CRYPT
/*
@@ -214,112 +221,125 @@ static BOOL dfs_auth(char *user,char *password)
* Assumes local passwd file is kept in sync w/ DCE RGY!
*/
- if (strcmp((char *)crypt(password,this_salt),this_crypted)) {
- return(False);
+ if (strcmp((char *)crypt(password, this_salt), this_crypted))
+ {
+ return (False);
}
#endif
sec_login_get_current_context(&my_dce_sec_context, &err);
- if (err != error_status_ok ) {
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE can't get current context. %s\n", dce_errstr));
+ DEBUG(0, ("DCE can't get current context. %s\n", dce_errstr));
- return(False);
+ return (False);
}
sec_login_certify_identity(my_dce_sec_context, &err);
- if (err != error_status_ok) {
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE can't get current context. %s\n", dce_errstr));
-
- return(False);
+ DEBUG(0, ("DCE can't get current context. %s\n", dce_errstr));
+
+ return (False);
}
sec_login_get_expiration(my_dce_sec_context, &expire_time, &err);
- if (err != error_status_ok) {
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE can't get expiration. %s\n", dce_errstr));
-
- return(False);
+ DEBUG(0, ("DCE can't get expiration. %s\n", dce_errstr));
+
+ return (False);
}
-
+
time(&current_time);
- if (expire_time < (current_time + 60)) {
- struct passwd *pw;
+ if (expire_time < (current_time + 60))
+ {
+ struct passwd *pw;
sec_passwd_rec_t *key;
-
- sec_login_get_pwent(my_dce_sec_context,
- (sec_login_passwd_t*)&pw, &err);
- if (err != error_status_ok ) {
+
+ sec_login_get_pwent(my_dce_sec_context,
+ (sec_login_passwd_t *) & pw, &err);
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE can't get pwent. %s\n", dce_errstr));
-
- return(False);
+ DEBUG(0, ("DCE can't get pwent. %s\n", dce_errstr));
+
+ return (False);
}
-
+
sec_login_refresh_identity(my_dce_sec_context, &err);
- if (err != error_status_ok) {
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE can't refresh identity. %s\n",
- dce_errstr));
-
- return(False);
+ DEBUG(0, ("DCE can't refresh identity. %s\n",
+ dce_errstr));
+
+ return (False);
}
-
+
sec_key_mgmt_get_key(rpc_c_authn_dce_secret, NULL,
(unsigned char *)pw->pw_name,
sec_c_key_version_none,
- (void**)&key, &err);
- if (err != error_status_ok) {
+ (void **)&key, &err);
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE can't get key for %s. %s\n",
- pw->pw_name, dce_errstr));
+ DEBUG(0, ("DCE can't get key for %s. %s\n",
+ pw->pw_name, dce_errstr));
- return(False);
+ return (False);
}
-
+
sec_login_valid_and_cert_ident(my_dce_sec_context, key,
- &password_reset, &auth_src,
+ &password_reset, &auth_src,
&err);
- if (err != error_status_ok ) {
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE can't validate and certify identity for %s. %s\n",
- pw->pw_name, dce_errstr));
+ DEBUG(0,
+ ("DCE can't validate and certify identity for %s. %s\n",
+ pw->pw_name, dce_errstr));
}
-
+
sec_key_mgmt_free_key(key, &err);
- if (err != error_status_ok ) {
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE can't free key.\n", dce_errstr));
+ DEBUG(0, ("DCE can't free key.\n", dce_errstr));
}
}
if (sec_login_setup_identity((unsigned char *)user,
sec_login_no_flags,
- &my_dce_sec_context,
- &err) == 0) {
+ &my_dce_sec_context, &err) == 0)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE Setup Identity for %s failed: %s\n",
- user,dce_errstr));
- return(False);
+ DEBUG(0, ("DCE Setup Identity for %s failed: %s\n",
+ user, dce_errstr));
+ return (False);
}
- sec_login_get_pwent(my_dce_sec_context,
- (sec_login_passwd_t*)&pw, &err);
- if (err != error_status_ok) {
+ sec_login_get_pwent(my_dce_sec_context,
+ (sec_login_passwd_t *) & pw, &err);
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE can't get pwent. %s\n", dce_errstr));
-
- return(False);
+ DEBUG(0, ("DCE can't get pwent. %s\n", dce_errstr));
+
+ return (False);
}
sec_login_purge_context(&my_dce_sec_context, &err);
- if (err != error_status_ok) {
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE can't purge context. %s\n", dce_errstr));
+ DEBUG(0, ("DCE can't purge context. %s\n", dce_errstr));
- return(False);
+ return (False);
}
/*
@@ -330,117 +350,129 @@ static BOOL dfs_auth(char *user,char *password)
* this should be ok. I have added code to go
* back to being root on error though. JRA.
*/
-
+
egid = getegid();
- if (set_effective_gid(pw->pw_gid) != 0) {
- DEBUG(0,("Can't set egid to %d (%s)\n",
- pw->pw_gid, strerror(errno)));
+ if (set_effective_gid(pw->pw_gid) != 0)
+ {
+ DEBUG(0, ("Can't set egid to %d (%s)\n",
+ pw->pw_gid, strerror(errno)));
return False;
}
- if (set_effective_uid(pw->pw_uid) != 0) {
+ if (set_effective_uid(pw->pw_uid) != 0)
+ {
set_effective_gid(egid);
- DEBUG(0,("Can't set euid to %d (%s)\n",
- pw->pw_uid, strerror(errno)));
+ DEBUG(0, ("Can't set euid to %d (%s)\n",
+ pw->pw_uid, strerror(errno)));
return False;
}
-
+
if (sec_login_setup_identity((unsigned char *)user,
sec_login_no_flags,
- &my_dce_sec_context,
- &err) == 0) {
+ &my_dce_sec_context, &err) == 0)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE Setup Identity for %s failed: %s\n",
- user,dce_errstr));
+ DEBUG(0, ("DCE Setup Identity for %s failed: %s\n",
+ user, dce_errstr));
goto err;
}
- sec_login_get_pwent(my_dce_sec_context,
- (sec_login_passwd_t*)&pw, &err);
- if (err != error_status_ok ) {
+ sec_login_get_pwent(my_dce_sec_context,
+ (sec_login_passwd_t *) & pw, &err);
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE can't get pwent. %s\n", dce_errstr));
+ DEBUG(0, ("DCE can't get pwent. %s\n", dce_errstr));
goto err;
}
passwd_rec.version_number = sec_passwd_c_version_none;
passwd_rec.pepper = NULL;
passwd_rec.key.key_type = sec_passwd_plain;
- passwd_rec.key.tagged_union.plain = (idl_char *)password;
-
+ passwd_rec.key.tagged_union.plain = (idl_char *) password;
+
sec_login_validate_identity(my_dce_sec_context,
&passwd_rec, &password_reset,
&auth_src, &err);
- if (err != error_status_ok ) {
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE Identity Validation failed for principal %s: %s\n",
- user,dce_errstr));
+ DEBUG(0,
+ ("DCE Identity Validation failed for principal %s: %s\n",
+ user, dce_errstr));
goto err;
}
sec_login_certify_identity(my_dce_sec_context, &err);
- if (err != error_status_ok) {
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE certify identity failed: %s\n", dce_errstr));
+ DEBUG(0, ("DCE certify identity failed: %s\n", dce_errstr));
goto err;
}
- if (auth_src != sec_login_auth_src_network) {
- DEBUG(0,("DCE context has no network credentials.\n"));
+ if (auth_src != sec_login_auth_src_network)
+ {
+ DEBUG(0, ("DCE context has no network credentials.\n"));
}
sec_login_set_context(my_dce_sec_context, &err);
- if (err != error_status_ok) {
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE login failed for principal %s, cant set context: %s\n",
- user,dce_errstr));
-
+ DEBUG(0,
+ ("DCE login failed for principal %s, cant set context: %s\n",
+ user, dce_errstr));
+
sec_login_purge_context(&my_dce_sec_context, &err);
goto err;
}
-
- sec_login_get_pwent(my_dce_sec_context,
- (sec_login_passwd_t*)&pw, &err);
- if (err != error_status_ok) {
+
+ sec_login_get_pwent(my_dce_sec_context,
+ (sec_login_passwd_t *) & pw, &err);
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE can't get pwent. %s\n", dce_errstr));
+ DEBUG(0, ("DCE can't get pwent. %s\n", dce_errstr));
goto err;
}
-
- DEBUG(0,("DCE login succeeded for principal %s on pid %d\n",
- user, getpid()));
-
- DEBUG(3,("DCE principal: %s\n"
- " uid: %d\n"
- " gid: %d\n",
- pw->pw_name, pw->pw_uid, pw->pw_gid));
- DEBUG(3,(" info: %s\n"
- " dir: %s\n"
- " shell: %s\n",
- pw->pw_gecos, pw->pw_dir, pw->pw_shell));
-
+
+ DEBUG(0, ("DCE login succeeded for principal %s on pid %d\n",
+ user, getpid()));
+
+ DEBUG(3, ("DCE principal: %s\n"
+ " uid: %d\n"
+ " gid: %d\n",
+ pw->pw_name, pw->pw_uid, pw->pw_gid));
+ DEBUG(3, (" info: %s\n"
+ " dir: %s\n"
+ " shell: %s\n",
+ pw->pw_gecos, pw->pw_dir, pw->pw_shell));
+
sec_login_get_expiration(my_dce_sec_context, &expire_time, &err);
- if (err != error_status_ok) {
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE can't get expiration. %s\n", dce_errstr));
+ DEBUG(0, ("DCE can't get expiration. %s\n", dce_errstr));
goto err;
}
-
+
set_effective_uid(0);
set_effective_gid(0);
-
- DEBUG(0,("DCE context expires: %s",asctime(localtime(&expire_time))));
-
+
+ DEBUG(0,
+ ("DCE context expires: %s", asctime(localtime(&expire_time))));
+
dcelogin_atmost_once = 1;
return (True);
-err:
+ err:
/* Go back to root, JRA. */
set_effective_uid(0);
set_effective_gid(egid);
- return(False);
+ return (False);
}
void dfs_unlogin(void)
@@ -448,12 +480,14 @@ void dfs_unlogin(void)
error_status_t err;
int err2;
unsigned char dce_errstr[dce_c_error_string_len];
-
+
sec_login_purge_context(&my_dce_sec_context, &err);
- if (err != error_status_ok) {
+ if (err != error_status_ok)
+ {
dce_error_inq_text(err, dce_errstr, &err2);
- DEBUG(0,("DCE purge login context failed for server instance %d: %s\n",
- getpid(), dce_errstr));
+ DEBUG(0,
+ ("DCE purge login context failed for server instance %d: %s\n",
+ getpid(), dce_errstr));
}
}
#endif
@@ -465,19 +499,19 @@ void dfs_unlogin(void)
/*******************************************************************
check on Kerberos authentication
********************************************************************/
-static BOOL krb5_auth(char *user,char *password)
+static BOOL krb5_auth(char *user, char *password)
{
krb5_data tgtname = {
0,
KRB5_TGS_NAME_SIZE,
- KRB5_TGS_NAME
- };
+ KRB5_TGS_NAME
+ };
krb5_context kcontext;
krb5_principal kprinc;
krb5_principal server;
krb5_creds kcreds;
int options = 0;
- krb5_address **addrs = (krb5_address **)0;
+ krb5_address **addrs = (krb5_address **) 0;
krb5_preauthtype *preauth = NULL;
krb5_keytab keytab = NULL;
krb5_timestamp now;
@@ -485,35 +519,45 @@ static BOOL krb5_auth(char *user,char *password)
int retval;
char *name;
- if (retval=krb5_init_context(&kcontext)) {
- return(False);
+ if (retval = krb5_init_context(&kcontext))
+ {
+ return (False);
}
- if (retval = krb5_timeofday(kcontext, &now)) {
- return(False);
+ if (retval = krb5_timeofday(kcontext, &now))
+ {
+ return (False);
}
- if (retval = krb5_cc_default(kcontext, &ccache)) {
- return(False);
+ if (retval = krb5_cc_default(kcontext, &ccache))
+ {
+ return (False);
}
-
- if (retval = krb5_parse_name(kcontext, user, &kprinc)) {
- return(False);
+
+ if (retval = krb5_parse_name(kcontext, user, &kprinc))
+ {
+ return (False);
}
ZERO_STRUCT(kcreds);
kcreds.client = kprinc;
-
+
if ((retval = krb5_build_principal_ext(kcontext, &server,
- krb5_princ_realm(kcontext, kprinc)->length,
- krb5_princ_realm(kcontext, kprinc)->data,
- tgtname.length,
- tgtname.data,
- krb5_princ_realm(kcontext, kprinc)->length,
- krb5_princ_realm(kcontext, kprinc)->data,
- 0))) {
- return(False);
+ krb5_princ_realm(kcontext,
+ kprinc)->
+ length,
+ krb5_princ_realm(kcontext,
+ kprinc)->data,
+ tgtname.length, tgtname.data,
+ krb5_princ_realm(kcontext,
+ kprinc)->
+ length,
+ krb5_princ_realm(kcontext,
+ kprinc)->data,
+ 0)))
+ {
+ return (False);
}
kcreds.server = server;
@@ -523,16 +567,14 @@ static BOOL krb5_auth(char *user,char *password)
addrs,
NULL,
preauth,
- password,
- 0,
- &kcreds,
- 0);
+ password, 0, &kcreds, 0);
- if (retval) {
- return(False);
+ if (retval)
+ {
+ return (False);
}
- return(True);
+ return (True);
}
#endif /* KRB5_AUTH */
@@ -542,22 +584,22 @@ static BOOL krb5_auth(char *user,char *password)
/*******************************************************************
check on Kerberos authentication
********************************************************************/
-static BOOL krb4_auth(char *user,char *password)
+static BOOL krb4_auth(char *user, char *password)
{
char realm[REALM_SZ];
char tkfile[MAXPATHLEN];
-
- if (krb_get_lrealm(realm, 1) != KSUCCESS) {
- (void) safe_strcpy(realm, KRB_REALM, sizeof (realm) - 1);
+
+ if (krb_get_lrealm(realm, 1) != KSUCCESS)
+ {
+ (void)safe_strcpy(realm, KRB_REALM, sizeof(realm) - 1);
}
- (void) slprintf(tkfile, sizeof(tkfile) - 1, "/tmp/samba_tkt_%d",
- (int)getpid());
-
+ (void)slprintf(tkfile, sizeof(tkfile) - 1, "/tmp/samba_tkt_%d",
+ (int)getpid());
+
krb_set_tkt_string(tkfile);
- if (krb_verify_user(user, "", realm,
- password, 0,
- "rmcd") == KSUCCESS) {
+ if (krb_verify_user(user, "", realm, password, 0, "rmcd") == KSUCCESS)
+ {
unlink(tkfile);
return 1;
}
@@ -570,24 +612,25 @@ static BOOL krb4_auth(char *user,char *password)
/****************************************************************************
an enhanced crypt for Linux to handle password longer than 8 characters
****************************************************************************/
-static int linux_bigcrypt(char *password,char *salt1, char *crypted)
+static int linux_bigcrypt(char *password, char *salt1, char *crypted)
{
#define LINUX_PASSWORD_SEG_CHARS 8
char salt[3];
int i;
-
- StrnCpy(salt,salt1,2);
- crypted +=2;
-
- for ( i=strlen(password); i > 0; i -= LINUX_PASSWORD_SEG_CHARS) {
- char * p = crypt(password,salt) + 2;
+
+ StrnCpy(salt, salt1, 2);
+ crypted += 2;
+
+ for (i = strlen(password); i > 0; i -= LINUX_PASSWORD_SEG_CHARS)
+ {
+ char *p = crypt(password, salt) + 2;
if (strncmp(p, crypted, LINUX_PASSWORD_SEG_CHARS) != 0)
- return(0);
+ return (0);
password += LINUX_PASSWORD_SEG_CHARS;
- crypted += strlen(p);
+ crypted += strlen(p);
}
-
- return(1);
+
+ return (1);
}
#endif
@@ -595,30 +638,33 @@ static int linux_bigcrypt(char *password,char *salt1, char *crypted)
/****************************************************************************
an enhanced crypt for OSF1
****************************************************************************/
-static char *osf1_bigcrypt(char *password,char *salt1)
+static char *osf1_bigcrypt(char *password, char *salt1)
{
static char result[AUTH_MAX_PASSWD_LENGTH] = "";
char *p1;
- char *p2=password;
+ char *p2 = password;
char salt[3];
int i;
int parts = strlen(password) / AUTH_CLEARTEXT_SEG_CHARS;
- if (strlen(password)%AUTH_CLEARTEXT_SEG_CHARS) {
+ if (strlen(password) % AUTH_CLEARTEXT_SEG_CHARS)
+ {
parts++;
}
-
- StrnCpy(salt,salt1,2);
- StrnCpy(result,salt1,2);
- result[2]='\0';
- for (i=0; i<parts;i++) {
- p1 = crypt(p2,salt);
- strncat(result,p1+2,AUTH_MAX_PASSWD_LENGTH-strlen(p1+2)-1);
- StrnCpy(salt,&result[2+i*AUTH_CIPHERTEXT_SEG_CHARS],2);
+ StrnCpy(salt, salt1, 2);
+ StrnCpy(result, salt1, 2);
+ result[2] = '\0';
+
+ for (i = 0; i < parts; i++)
+ {
+ p1 = crypt(p2, salt);
+ strncat(result, p1 + 2,
+ AUTH_MAX_PASSWD_LENGTH - strlen(p1 + 2) - 1);
+ StrnCpy(salt, &result[2 + i * AUTH_CIPHERTEXT_SEG_CHARS], 2);
p2 += AUTH_CLEARTEXT_SEG_CHARS;
}
- return(result);
+ return (result);
}
#endif
@@ -630,28 +676,32 @@ try all combinations with N uppercase letters.
offset is the first char to try and change (start with 0)
it assumes the string starts lowercased
****************************************************************************/
-static BOOL string_combinations2(char *s,int offset,BOOL (*fn)(char *),int N)
+static BOOL string_combinations2(char *s, int offset, BOOL (*fn) (char *),
+ int N)
{
int len = strlen(s);
int i;
#ifdef PASSWORD_LENGTH
- len = MIN(len,PASSWORD_LENGTH);
+ len = MIN(len, PASSWORD_LENGTH);
#endif
- if (N <= 0 || offset >= len) {
- return(fn(s));
+ if (N <= 0 || offset >= len)
+ {
+ return (fn(s));
}
- for (i=offset;i<(len-(N-1));i++) {
+ for (i = offset; i < (len - (N - 1)); i++)
+ {
char c = s[i];
- if (!islower(c)) continue;
+ if (!islower(c))
+ continue;
s[i] = toupper(c);
- if (string_combinations2(s,i+1,fn,N-1))
- return(True);
+ if (string_combinations2(s, i + 1, fn, N - 1))
+ return (True);
s[i] = c;
}
- return(False);
+ return (False);
}
/****************************************************************************
@@ -661,12 +711,13 @@ try all combinations with up to N uppercase letters.
offset is the first char to try and change (start with 0)
it assumes the string starts lowercased
****************************************************************************/
-static BOOL string_combinations(char *s,BOOL (*fn)(char *),int N)
+static BOOL string_combinations(char *s, BOOL (*fn) (char *), int N)
{
int n;
- for (n=1;n<=N;n++)
- if (string_combinations2(s,0,fn,n)) return(True);
- return(False);
+ for (n = 1; n <= N; n++)
+ if (string_combinations2(s, 0, fn, n))
+ return (True);
+ return (False);
}
@@ -685,43 +736,56 @@ static BOOL password_check(char *password)
settings say it should fail.
if (pam_auth(user,password)) return(True);
Hence we make a direct return to avoid a second chance!!!
- */
- return (pam_auth(this_user,password));
+ */
+ return (pam_auth(this_user, password));
#endif /* WITH_PAM */
-
+
#ifdef WITH_AFS
- if (afs_auth(this_user,password)) return(True);
+ if (afs_auth(this_user, password))
+ return (True);
#endif /* WITH_AFS */
-
+
#ifdef WITH_DFS
- if (dfs_auth(this_user,password)) return(True);
+ if (dfs_auth(this_user, password))
+ return (True);
#endif /* WITH_DFS */
#ifdef KRB5_AUTH
- if (krb5_auth(this_user,password)) return(True);
+ if (krb5_auth(this_user, password))
+ return (True);
#endif /* KRB5_AUTH */
#ifdef KRB4_AUTH
- if (krb4_auth(this_user,password)) return(True);
+ if (krb4_auth(this_user, password))
+ return (True);
#endif /* KRB4_AUTH */
#ifdef OSF1_ENH_SEC
{
- BOOL ret = (strcmp(osf1_bigcrypt(password,this_salt),this_crypted) == 0);
- if(!ret) {
- DEBUG(2,("OSF1_ENH_SEC failed. Trying normal crypt.\n"));
- ret = (strcmp((char *)crypt(password,this_salt),this_crypted) == 0);
- }
- return ret;
+ BOOL ret =
+ (strcmp
+ (osf1_bigcrypt(password, this_salt),
+ this_crypted) == 0);
+ if (!ret)
+ {
+ DEBUG(2,
+ ("OSF1_ENH_SEC failed. Trying normal crypt.\n"));
+ ret =
+ (strcmp
+ ((char *)crypt(password, this_salt),
+ this_crypted) == 0);
+ }
+ return ret;
}
#endif /* OSF1_ENH_SEC */
#ifdef ULTRIX_AUTH
- return (strcmp((char *)crypt16(password, this_salt ),this_crypted) == 0);
+ return (strcmp((char *)crypt16(password, this_salt), this_crypted) ==
+ 0);
#endif /* ULTRIX_AUTH */
#ifdef LINUX_BIGCRYPT
- return(linux_bigcrypt(password,this_salt,this_crypted));
+ return (linux_bigcrypt(password, this_salt, this_crypted));
#endif /* LINUX_BIGCRYPT */
#if defined(HAVE_BIGCRYPT) && defined(HAVE_CRYPT) && defined(USE_BOTH_CRYPT_CALLS)
@@ -733,21 +797,24 @@ static BOOL password_check(char *password)
* by crypt.
*/
- if(strcmp(bigcrypt(password,this_salt),this_crypted) == 0)
+ if (strcmp(bigcrypt(password, this_salt), this_crypted) == 0)
return True;
- else
- return (strcmp((char *)crypt(password,this_salt),this_crypted) == 0);
+ else
+ return (strcmp
+ ((char *)crypt(password, this_salt),
+ this_crypted) == 0);
#else /* HAVE_BIGCRYPT && HAVE_CRYPT && USE_BOTH_CRYPT_CALLS */
#ifdef HAVE_BIGCRYPT
- return(strcmp(bigcrypt(password,this_salt),this_crypted) == 0);
+ return (strcmp(bigcrypt(password, this_salt), this_crypted) == 0);
#endif /* HAVE_BIGCRYPT */
#ifndef HAVE_CRYPT
- DEBUG(1,("Warning - no crypt available\n"));
- return(False);
+ DEBUG(1, ("Warning - no crypt available\n"));
+ return (False);
#else /* HAVE_CRYPT */
- return(strcmp((char *)crypt(password,this_salt),this_crypted) == 0);
+ return (strcmp((char *)crypt(password, this_salt), this_crypted) ==
+ 0);
#endif /* HAVE_CRYPT */
#endif /* HAVE_BIGCRYPT && HAVE_CRYPT && USE_BOTH_CRYPT_CALLS */
}
@@ -760,40 +827,47 @@ the function pointer fn() points to a function to call when a successful
match is found and is used to update the encrypted password file
return True on correct match, False otherwise
****************************************************************************/
-BOOL pass_check(char *user,char *password, int pwlen, struct passwd *pwd,
- BOOL (*fn)(char *, char *))
+BOOL pass_check(char *user, char *password, int pwlen, struct passwd *pwd,
+ BOOL (*fn) (char *, char *))
{
pstring pass2;
int level = lp_passwordlevel();
struct passwd *pass;
- if (password) password[pwlen] = 0;
+ if (password)
+ password[pwlen] = 0;
#if DEBUG_PASSWORD
- DEBUG(100,("checking user=[%s] pass=[%s]\n",user,password));
+ DEBUG(100, ("checking user=[%s] pass=[%s]\n", user, password));
#endif
- if (!password) {
- return(False);
+ if (!password)
+ {
+ return (False);
}
- if (((!*password) || (!pwlen)) && !lp_null_passwords()) {
- return(False);
+ if (((!*password) || (!pwlen)) && !lp_null_passwords())
+ {
+ return (False);
}
- if (pwd && !user) {
- pass = (struct passwd *) pwd;
+ if (pwd && !user)
+ {
+ pass = (struct passwd *)pwd;
user = pass->pw_name;
- } else {
- pass = Get_Pwnam(user,True);
+ }
+ else
+ {
+ pass = Get_Pwnam(user, True);
}
- DEBUG(4,("Checking password for user %s (l=%d)\n",user,pwlen));
+ DEBUG(4, ("Checking password for user %s (l=%d)\n", user, pwlen));
- if (!pass) {
- DEBUG(3,("Couldn't find user %s\n",user));
- return(False);
+ if (!pass)
+ {
+ DEBUG(3, ("Couldn't find user %s\n", user));
+ return (False);
}
#ifdef HAVE_GETSPNAM
@@ -806,8 +880,9 @@ BOOL pass_check(char *user,char *password, int pwlen, struct passwd *pwd,
perhaps for IPC password changing requests */
spass = getspnam(pass->pw_name);
- if (spass && spass->sp_pwdp) {
- pstrcpy(pass->pw_passwd,spass->sp_pwdp);
+ if (spass && spass->sp_pwdp)
+ {
+ pstrcpy(pass->pw_passwd, spass->sp_pwdp);
}
}
#elif defined(IA_UINFO)
@@ -817,7 +892,8 @@ BOOL pass_check(char *user,char *password, int pwlen, struct passwd *pwd,
UnixWare 2.x, tested on version
2.1. (tangent@cyberport.com) */
uinfo_t uinfo;
- if (ia_openinfo(pass->pw_name, &uinfo) != -1) {
+ if (ia_openinfo(pass->pw_name, &uinfo) != -1)
+ {
ia_get_logpwd(uinfo, &(pass->pw_passwd));
}
}
@@ -827,22 +903,26 @@ BOOL pass_check(char *user,char *password, int pwlen, struct passwd *pwd,
{
struct pr_passwd *pr_pw = getprpwnam(pass->pw_name);
if (pr_pw && pr_pw->ufld.fd_encrypt)
- pstrcpy(pass->pw_passwd,pr_pw->ufld.fd_encrypt);
+ pstrcpy(pass->pw_passwd, pr_pw->ufld.fd_encrypt);
}
#endif
#ifdef OSF1_ENH_SEC
{
struct pr_passwd *mypasswd;
- DEBUG(5,("Checking password for user %s in OSF1_ENH_SEC\n",
- user));
- mypasswd = getprpwnam (user);
- if (mypasswd) {
- fstrcpy(pass->pw_name,mypasswd->ufld.fd_name);
- fstrcpy(pass->pw_passwd,mypasswd->ufld.fd_encrypt);
- } else {
- DEBUG(5,("OSF1_ENH_SEC: No entry for user %s in protected database !\n",
- user));
+ DEBUG(5, ("Checking password for user %s in OSF1_ENH_SEC\n",
+ user));
+ mypasswd = getprpwnam(user);
+ if (mypasswd)
+ {
+ fstrcpy(pass->pw_name, mypasswd->ufld.fd_name);
+ fstrcpy(pass->pw_passwd, mypasswd->ufld.fd_encrypt);
+ }
+ else
+ {
+ DEBUG(5,
+ ("OSF1_ENH_SEC: No entry for user %s in protected database !\n",
+ user));
}
}
#endif
@@ -850,7 +930,8 @@ BOOL pass_check(char *user,char *password, int pwlen, struct passwd *pwd,
#ifdef ULTRIX_AUTH
{
AUTHORIZATION *ap = getauthuid(pass->pw_uid);
- if (ap) {
+ if (ap)
+ {
fstrcpy(pass->pw_passwd, ap->a_password);
endauthent();
}
@@ -858,72 +939,84 @@ BOOL pass_check(char *user,char *password, int pwlen, struct passwd *pwd,
#endif
/* extract relevant info */
- fstrcpy(this_user,pass->pw_name);
- fstrcpy(this_salt,pass->pw_passwd);
+ fstrcpy(this_user, pass->pw_name);
+ fstrcpy(this_salt, pass->pw_passwd);
#if defined(HAVE_TRUNCATED_SALT)
/* crypt on some platforms (HPUX in particular)
won't work with more than 2 salt characters. */
this_salt[2] = 0;
#endif
-
- fstrcpy(this_crypted,pass->pw_passwd);
-
- if (!*this_crypted) {
- if (!lp_null_passwords()) {
- DEBUG(2,("Disallowing %s with null password\n",
- this_user));
- return(False);
+
+ fstrcpy(this_crypted, pass->pw_passwd);
+
+ if (!*this_crypted)
+ {
+ if (!lp_null_passwords())
+ {
+ DEBUG(2, ("Disallowing %s with null password\n",
+ this_user));
+ return (False);
}
- if (!*password) {
- DEBUG(3,("Allowing access to %s with null password\n",
- this_user));
- return(True);
+ if (!*password)
+ {
+ DEBUG(3,
+ ("Allowing access to %s with null password\n",
+ this_user));
+ return (True);
}
}
/* try it as it came to us */
- if (password_check(password)) {
- if (fn) fn(user,password);
- return(True);
+ if (password_check(password))
+ {
+ if (fn)
+ fn(user, password);
+ return (True);
}
/* if the password was given to us with mixed case then we don't
need to proceed as we know it hasn't been case modified by the
client */
- if (strhasupper(password) && strhaslower(password)) {
- return(False);
+ if (strhasupper(password) && strhaslower(password))
+ {
+ return (False);
}
/* make a copy of it */
- StrnCpy(pass2,password,sizeof(pstring)-1);
-
+ StrnCpy(pass2, password, sizeof(pstring) - 1);
+
/* try all lowercase */
strlower(password);
- if (password_check(password)) {
- if (fn) fn(user,password);
- return(True);
+ if (password_check(password))
+ {
+ if (fn)
+ fn(user, password);
+ return (True);
}
/* give up? */
- if (level < 1) {
+ if (level < 1)
+ {
/* restore it */
- fstrcpy(password,pass2);
-
- return(False);
+ fstrcpy(password, pass2);
+
+ return (False);
}
/* last chance - all combinations of up to level chars upper! */
strlower(password);
- if (string_combinations(password,password_check,level)) {
- if (fn) fn(user,password);
- return(True);
+ if (string_combinations(password, password_check, level))
+ {
+ if (fn)
+ fn(user, password);
+ return (True);
}
/* restore it */
- fstrcpy(password,pass2);
-
- return(False);
+ fstrcpy(password, pass2);
+
+ return (False);
}