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-rw-r--r--source3/smbd/dir.c2
-rw-r--r--source3/smbd/password.c41
-rw-r--r--source3/smbd/sesssetup.c27
-rw-r--r--source3/smbd/statcache.c4
4 files changed, 45 insertions, 29 deletions
diff --git a/source3/smbd/dir.c b/source3/smbd/dir.c
index 9e8de2979b..e022d26ea3 100644
--- a/source3/smbd/dir.c
+++ b/source3/smbd/dir.c
@@ -907,7 +907,7 @@ void *OpenDir(connection_struct *conn, const char *name, BOOL use_veto)
dirp->current = dirp->data;
}
- pstrcpy(dirp->data+used,n);
+ safe_strcpy(dirp->data+used,n, dirp->mallocsize - used - 1);
used += l;
dirp->numentries++;
}
diff --git a/source3/smbd/password.c b/source3/smbd/password.c
index 4ce99e96bb..5274028db4 100644
--- a/source3/smbd/password.c
+++ b/source3/smbd/password.c
@@ -62,11 +62,15 @@ void invalidate_vuid(uint16 vuid)
if (vuser == NULL)
return;
-
+
SAFE_FREE(vuser->homedir);
-
+ SAFE_FREE(vuser->unix_homedir);
+ SAFE_FREE(vuser->logon_script);
+
session_yield(vuser);
+ free_server_info(&vuser->server_info);
+
DLIST_REMOVE(validated_users, vuser);
/* clear the vuid from the 'cache' on each connection, and
@@ -93,11 +97,15 @@ void invalidate_all_vuids(void)
}
}
-/****************************************************************************
-register a uid/name pair as being valid and that a valid password
-has been given. vuid is biased by an offset. This allows us to
-tell random client vuid's (normally zero) from valid vuids.
-****************************************************************************/
+/**
+ * register that a valid login has been performed, establish 'session'.
+ * @param server_info The token returned from the authentication process.
+ * (now 'owned' by register_vuid)
+ *
+ * @return Newly allocated vuid, biased by an offset. (This allows us to
+ * tell random client vuid's (normally zero) from valid vuids.)
+ *
+ */
int register_vuid(auth_serversupplied_info *server_info, const char *smb_name)
{
@@ -136,6 +144,7 @@ int register_vuid(auth_serversupplied_info *server_info, const char *smb_name)
if (!IS_SAM_UNIX_USER(server_info->sam_account)) {
DEBUG(0,("Attempted session setup with invalid user. No uid/gid in SAM_ACCOUNT\n"));
free(vuser);
+ free_server_info(&server_info);
return UID_FIELD_INVALID;
}
@@ -147,20 +156,24 @@ int register_vuid(auth_serversupplied_info *server_info, const char *smb_name)
if (!(vuser->groups = memdup(server_info->groups, sizeof(gid_t) * vuser->n_groups))) {
DEBUG(0,("register_vuid: failed to memdup vuser->groups\n"));
free(vuser);
+ free_server_info(&server_info);
return UID_FIELD_INVALID;
}
}
vuser->guest = server_info->guest;
fstrcpy(vuser->user.unix_name, pdb_get_username(server_info->sam_account));
- fstrcpy(vuser->user.smb_name, smb_name);
+
+ /* This is a potentially untrusted username */
+ alpha_strcpy(vuser->user.smb_name, smb_name, ". _-$", sizeof(vuser->user.smb_name));
+
fstrcpy(vuser->user.domain, pdb_get_domain(server_info->sam_account));
fstrcpy(vuser->user.full_name, pdb_get_fullname(server_info->sam_account));
{
/* Keep the homedir handy */
const char *homedir = pdb_get_homedir(server_info->sam_account);
- const char *unix_homedir = pdb_get_unix_homedir(server_info->sam_account); /* should be optained by SMS */
+ const char *unix_homedir = pdb_get_unix_homedir(server_info->sam_account);
const char *logon_script = pdb_get_logon_script(server_info->sam_account);
if (homedir) {
vuser->homedir = smb_xstrdup(homedir);
@@ -188,10 +201,18 @@ int register_vuid(auth_serversupplied_info *server_info, const char *smb_name)
vuser->nt_user_token = dup_nt_token(server_info->ptok);
} else {
DEBUG(1, ("server_info does not contain a user_token - cannot continue\n"));
- free(vuser);
+ free_server_info(&server_info);
+ SAFE_FREE(vuser->homedir);
+ SAFE_FREE(vuser->unix_homedir);
+ SAFE_FREE(vuser->logon_script);
+
+ SAFE_FREE(vuser);
return UID_FIELD_INVALID;
}
+ /* use this to keep tabs on all our info from the authentication */
+ vuser->server_info = server_info;
+
DEBUG(3,("UNIX uid %d is UNIX user %s, and will be vuid %u\n",(int)vuser->uid,vuser->user.unix_name, vuser->vuid));
next_vuid++;
diff --git a/source3/smbd/sesssetup.c b/source3/smbd/sesssetup.c
index bb7d17be56..e408cc88e9 100644
--- a/source3/smbd/sesssetup.c
+++ b/source3/smbd/sesssetup.c
@@ -168,6 +168,8 @@ static int reply_spnego_kerberos(connection_struct *conn,
return ERROR_NT(NT_STATUS_LOGON_FAILURE);
}
+ data_blob_free(&auth_data);
+
DEBUG(3,("Ticket name is [%s]\n", client));
p = strchr_m(client, '@');
@@ -219,10 +221,10 @@ static int reply_spnego_kerberos(connection_struct *conn,
return ERROR_NT(ret);
}
+ /* register_vuid keeps the server info */
sess_vuid = register_vuid(server_info, user);
free(user);
- free_server_info(&server_info);
if (sess_vuid == -1) {
return ERROR_NT(NT_STATUS_LOGON_FAILURE);
@@ -263,8 +265,10 @@ static BOOL reply_spnego_ntlmssp(connection_struct *conn, char *outbuf,
if (NT_STATUS_IS_OK(nt_status)) {
int sess_vuid;
- sess_vuid = register_vuid(server_info, (*auth_ntlmssp_state)->ntlmssp_state->user /* check this for weird */);
-
+ /* register_vuid keeps the server info */
+ sess_vuid = register_vuid(server_info, (*auth_ntlmssp_state)->ntlmssp_state->user);
+ (*auth_ntlmssp_state)->server_info = NULL;
+
if (sess_vuid == -1) {
nt_status = NT_STATUS_LOGON_FAILURE;
} else {
@@ -272,7 +276,7 @@ static BOOL reply_spnego_ntlmssp(connection_struct *conn, char *outbuf,
set_message(outbuf,4,0,True);
SSVAL(outbuf, smb_vwv3, 0);
- if ((*auth_ntlmssp_state)->server_info && (*auth_ntlmssp_state)->server_info->guest) {
+ if (server_info->guest) {
SSVAL(outbuf,smb_vwv2,1);
}
@@ -285,7 +289,7 @@ static BOOL reply_spnego_ntlmssp(connection_struct *conn, char *outbuf,
data_blob_free(&response);
if (!ret || !NT_STATUS_EQUAL(nt_status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {
- auth_ntlmssp_end(&global_ntlmssp_state);
+ auth_ntlmssp_end(auth_ntlmssp_state);
}
return ret;
@@ -584,13 +588,6 @@ int reply_sesssetup_and_X(connection_struct *conn, char *inbuf,char *outbuf,
domain,native_os,native_lanman));
}
- /* don't allow for weird usernames or domains */
- alpha_strcpy(user, user, ". _-$", sizeof(user));
- alpha_strcpy(domain, domain, ". _-@", sizeof(domain));
- if (strstr(user, "..") || strstr(domain,"..")) {
- return ERROR_NT(NT_STATUS_LOGON_FAILURE);
- }
-
DEBUG(3,("sesssetupX:name=[%s]\\[%s]@[%s]\n", domain, user, get_remote_machine_name()));
if (*user) {
@@ -609,7 +606,7 @@ int reply_sesssetup_and_X(connection_struct *conn, char *inbuf,char *outbuf,
fstrcpy(sub_user, lp_guestaccount());
}
- fstrcpy(current_user_info.smb_name,sub_user);
+ sub_set_smb_name(sub_user);
reload_services(True);
@@ -692,15 +689,13 @@ int reply_sesssetup_and_X(connection_struct *conn, char *inbuf,char *outbuf,
/* register the name and uid as being validated, so further connections
to a uid can get through without a password, on the same VC */
+ /* register_vuid keeps the server info */
sess_vuid = register_vuid(server_info, sub_user);
-
- free_server_info(&server_info);
if (sess_vuid == -1) {
return ERROR_NT(NT_STATUS_LOGON_FAILURE);
}
-
SSVAL(outbuf,smb_uid,sess_vuid);
SSVAL(inbuf,smb_uid,sess_vuid);
diff --git a/source3/smbd/statcache.c b/source3/smbd/statcache.c
index 93782b9bb0..f4b613428a 100644
--- a/source3/smbd/statcache.c
+++ b/source3/smbd/statcache.c
@@ -122,8 +122,8 @@ void stat_cache_add( char *full_orig_name, char *orig_translated_path)
DEBUG(0,("stat_cache_add: Out of memory !\n"));
return;
}
- pstrcpy(scp->names, orig_name);
- pstrcpy(scp->names+namelen+1, translated_path);
+ safe_strcpy(scp->names, orig_name, namelen);
+ safe_strcpy(scp->names+namelen+1, translated_path, namelen);
scp->name_len = namelen;
hash_insert(&stat_cache, (char *)scp, orig_name);
}
generated by cgit (git 2.34.1) at 2024-11-24 11:43:09 +0000