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Diffstat (limited to 'source3/smbd/chgpasswd.c')
-rw-r--r--source3/smbd/chgpasswd.c81
1 files changed, 58 insertions, 23 deletions
diff --git a/source3/smbd/chgpasswd.c b/source3/smbd/chgpasswd.c
index a452575af3..e3df8a11d0 100644
--- a/source3/smbd/chgpasswd.c
+++ b/source3/smbd/chgpasswd.c
@@ -48,6 +48,16 @@
#include "includes.h"
+#ifdef HAVE_WORKING_CRACKLIB
+#include <crack.h>
+
+#ifndef HAVE_CRACKLIB_DICTPATH
+#ifndef CRACKLIB_DICTPATH
+#define CRACKLIB_DICTPATH SAMBA_CRACKLIB_DICTPATH
+#endif
+#endif
+#endif
+
extern struct passdb_ops pdb_ops;
static NTSTATUS check_oem_password(const char *user,
@@ -442,25 +452,14 @@ while we were waiting\n", WTERMSIG(wstat)));
return (chstat);
}
-BOOL chgpasswd(const char *name, const char *oldpass, const char *newpass, BOOL as_root)
+BOOL chgpasswd(const char *name, const struct passwd *pass,
+ const char *oldpass, const char *newpass, BOOL as_root)
{
pstring passwordprogram;
pstring chatsequence;
size_t i;
size_t len;
- struct passwd *pass;
-
- if (!name) {
- DEBUG(1, ("chgpasswd: NULL username specfied !\n"));
- }
-
- pass = Get_Pwnam(name);
- if (!pass) {
- DEBUG(1, ("chgpasswd: Username does not exist in system !\n"));
- return False;
- }
-
if (!oldpass) {
oldpass = "";
}
@@ -472,13 +471,6 @@ BOOL chgpasswd(const char *name, const char *oldpass, const char *newpass, BOOL
#endif
/* Take the passed information and test it for minimum criteria */
- /* Minimum password length */
- if (strlen(newpass) < lp_min_passwd_length()) {
- /* too short, must be at least MINPASSWDLENGTH */
- DEBUG(0, ("chgpasswd: Password Change: user %s, New password is shorter than minimum password length = %d\n",
- name, lp_min_passwd_length()));
- return (False); /* inform the user */
- }
/* Password is same as old password */
if (strcmp(oldpass, newpass) == 0) {
@@ -571,7 +563,8 @@ the string %%u, and the given string %s does not.\n", passwordprogram ));
#else /* ALLOW_CHANGE_PASSWORD */
-BOOL chgpasswd(const char *name, const char *oldpass, const char *newpass, BOOL as_root)
+BOOL chgpasswd(const char *name, const struct passwd *pass,
+ const char *oldpass, const char *newpass, BOOL as_root)
{
DEBUG(0, ("chgpasswd: Unix Password changing not compiled in (user=%s)\n", name));
return (False);
@@ -958,6 +951,8 @@ static NTSTATUS check_oem_password(const char *user,
NTSTATUS change_oem_password(SAM_ACCOUNT *hnd, char *old_passwd, char *new_passwd, BOOL as_root)
{
+ struct passwd *pass;
+
BOOL ret;
uint32 min_len;
@@ -985,7 +980,47 @@ NTSTATUS change_oem_password(SAM_ACCOUNT *hnd, char *old_passwd, char *new_passw
/* return NT_STATUS_PWD_TOO_SHORT; */
}
- /* TODO: Add cracklib support here */
+ pass = Get_Pwnam(pdb_get_username(hnd));
+ if (!pass) {
+ DEBUG(1, ("check_oem_password: Username does not exist in system !?!\n"));
+ }
+
+#ifdef HAVE_WORKING_CRACKLIB
+ if (pass) {
+ /* if we can, become the user to overcome internal cracklib sillyness */
+ if (!push_sec_ctx())
+ return NT_STATUS_UNSUCCESSFUL;
+
+ set_sec_ctx(pass->pw_uid, pass->pw_gid, 0, NULL, NULL);
+ set_re_uid();
+ }
+
+ if (lp_use_cracklib()) {
+ const char *crack_check_reason;
+ DEBUG(4, ("change_oem_password: Checking password for user [%s]"
+ " against cracklib. \n", pdb_get_username(hnd)));
+ DEBUGADD(4, ("If this is your last message, then something is "
+ "wrong with cracklib, it might be missing it's "
+ "dictionaries at %s\n",
+ CRACKLIB_DICTPATH));
+ dbgflush();
+
+ crack_check_reason = FascistCheck(new_passwd, (char *)CRACKLIB_DICTPATH);
+ if (crack_check_reason) {
+ DEBUG(1, ("Password Change: user [%s], "
+ "New password failed cracklib test - %s\n",
+ pdb_get_username(hnd), crack_check_reason));
+
+ /* get back to where we should be */
+ if (pass)
+ pop_sec_ctx();
+ return NT_STATUS_PASSWORD_RESTRICTION;
+ }
+ }
+
+ if (pass)
+ pop_sec_ctx();
+#endif
/*
* If unix password sync was requested, attempt to change
@@ -1000,7 +1035,7 @@ NTSTATUS change_oem_password(SAM_ACCOUNT *hnd, char *old_passwd, char *new_passw
*/
if(lp_unix_password_sync() &&
- !chgpasswd(pdb_get_username(hnd), old_passwd, new_passwd, as_root)) {
+ !chgpasswd(pdb_get_username(hnd), pass, old_passwd, new_passwd, as_root)) {
return NT_STATUS_ACCESS_DENIED;
}