--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ Authentication utility functions
+ Copyright (C) Andrew Tridgell 1992-1998
+ Copyright (C) Andrew Bartlett 2001
+ Copyright (C) Jeremy Allison 2000-2001
+ Copyright (C) Rafal Szczesniak 2002
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_AUTH
+
+
+/****************************************************************************
+ Create a UNIX user on demand.
+****************************************************************************/
+
+static int smb_create_user(const char *domain, const char *unix_username, const char *homedir)
+{
+ pstring add_script;
+ int ret;
+
+ pstrcpy(add_script, lp_adduser_script());
+ if (! *add_script)
+ return -1;
+ all_string_sub(add_script, "%u", unix_username, sizeof(pstring));
+ if (domain)
+ all_string_sub(add_script, "%D", domain, sizeof(pstring));
+ if (homedir)
+ all_string_sub(add_script, "%H", homedir, sizeof(pstring));
+ ret = smbrun(add_script,NULL);
+ flush_pwnam_cache();
+ DEBUG(ret ? 0 : 3,("smb_create_user: Running the command `%s' gave %d\n",add_script,ret));
+ return ret;
+}
+
+/****************************************************************************
+ Create an auth_usersupplied_data structure
+****************************************************************************/
+
+static NTSTATUS make_user_info(auth_usersupplied_info **user_info,
+ const char *smb_name,
+ const char *internal_username,
+ const char *client_domain,
+ const char *domain,
+ const char *wksta_name,
+ DATA_BLOB *lm_pwd, DATA_BLOB *nt_pwd,
+ DATA_BLOB *lm_interactive_pwd, DATA_BLOB *nt_interactive_pwd,
+ DATA_BLOB *plaintext,
+ BOOL encrypted)
+{
+
+ DEBUG(5,("attempting to make a user_info for %s (%s)\n", internal_username, smb_name));
+
+ *user_info = SMB_MALLOC_P(auth_usersupplied_info);
+ if (!user_info) {
+ DEBUG(0,("malloc failed for user_info (size %lu)\n", (unsigned long)sizeof(*user_info)));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ ZERO_STRUCTP(*user_info);
+
+ DEBUG(5,("making strings for %s's user_info struct\n", internal_username));
+
+ (*user_info)->smb_name.str = SMB_STRDUP(smb_name);
+ if ((*user_info)->smb_name.str) {
+ (*user_info)->smb_name.len = strlen(smb_name);
+ } else {
+ free_user_info(user_info);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ (*user_info)->internal_username.str = SMB_STRDUP(internal_username);
+ if ((*user_info)->internal_username.str) {
+ (*user_info)->internal_username.len = strlen(internal_username);
+ } else {
+ free_user_info(user_info);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ (*user_info)->domain.str = SMB_STRDUP(domain);
+ if ((*user_info)->domain.str) {
+ (*user_info)->domain.len = strlen(domain);
+ } else {
+ free_user_info(user_info);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ (*user_info)->client_domain.str = SMB_STRDUP(client_domain);
+ if ((*user_info)->client_domain.str) {
+ (*user_info)->client_domain.len = strlen(client_domain);
+ } else {
+ free_user_info(user_info);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ (*user_info)->wksta_name.str = SMB_STRDUP(wksta_name);
+ if ((*user_info)->wksta_name.str) {
+ (*user_info)->wksta_name.len = strlen(wksta_name);
+ } else {
+ free_user_info(user_info);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ DEBUG(5,("making blobs for %s's user_info struct\n", internal_username));
+
+ if (lm_pwd)
+ (*user_info)->lm_resp = data_blob(lm_pwd->data, lm_pwd->length);
+ if (nt_pwd)
+ (*user_info)->nt_resp = data_blob(nt_pwd->data, nt_pwd->length);
+ if (lm_interactive_pwd)
+ (*user_info)->lm_interactive_pwd = data_blob(lm_interactive_pwd->data, lm_interactive_pwd->length);
+ if (nt_interactive_pwd)
+ (*user_info)->nt_interactive_pwd = data_blob(nt_interactive_pwd->data, nt_interactive_pwd->length);
+
+ if (plaintext)
+ (*user_info)->plaintext_password = data_blob(plaintext->data, plaintext->length);
+
+ (*user_info)->encrypted = encrypted;
+
+ (*user_info)->logon_parameters = 0;
+
+ DEBUG(10,("made an %sencrypted user_info for %s (%s)\n", encrypted ? "":"un" , internal_username, smb_name));
+
+ return NT_STATUS_OK;
+}
+
+/****************************************************************************
+ Create an auth_usersupplied_data structure after appropriate mapping.
+****************************************************************************/
+
+NTSTATUS make_user_info_map(auth_usersupplied_info **user_info,
+ const char *smb_name,
+ const char *client_domain,
+ const char *wksta_name,
+ DATA_BLOB *lm_pwd, DATA_BLOB *nt_pwd,
+ DATA_BLOB *lm_interactive_pwd, DATA_BLOB *nt_interactive_pwd,
+ DATA_BLOB *plaintext,
+ BOOL encrypted)
+{
+ const char *domain;
+ fstring internal_username;
+ fstrcpy(internal_username, smb_name);
+ map_username(internal_username);
+
+ DEBUG(5, ("make_user_info_map: Mapping user [%s]\\[%s] from workstation [%s]\n",
+ client_domain, smb_name, wksta_name));
+
+ /* don't allow "" as a domain, fixes a Win9X bug
+ where it doens't supply a domain for logon script
+ 'net use' commands. */
+
+ if ( *client_domain )
+ domain = client_domain;
+ else
+ domain = lp_workgroup();
+
+ /* do what win2k does. Always map unknown domains to our own
+ and let the "passdb backend" handle unknown users. */
+
+ if ( !is_trusted_domain(domain) && !strequal(domain, get_global_sam_name()) )
+ domain = get_default_sam_name();
+
+ /* we know that it is a trusted domain (and we are allowing them) or it is our domain */
+
+ return make_user_info(user_info, smb_name, internal_username,
+ client_domain, domain, wksta_name,
+ lm_pwd, nt_pwd,
+ lm_interactive_pwd, nt_interactive_pwd,
+ plaintext, encrypted);
+}
+
+/****************************************************************************
+ Create an auth_usersupplied_data, making the DATA_BLOBs here.
+ Decrypt and encrypt the passwords.
+****************************************************************************/
+
+BOOL make_user_info_netlogon_network(auth_usersupplied_info **user_info,
+ const char *smb_name,
+ const char *client_domain,
+ const char *wksta_name,
+ uint32 logon_parameters,
+ const uchar *lm_network_pwd, int lm_pwd_len,
+ const uchar *nt_network_pwd, int nt_pwd_len)
+{
+ BOOL ret;
+ NTSTATUS nt_status;
+ DATA_BLOB lm_blob = data_blob(lm_network_pwd, lm_pwd_len);
+ DATA_BLOB nt_blob = data_blob(nt_network_pwd, nt_pwd_len);
+
+ nt_status = make_user_info_map(user_info,
+ smb_name, client_domain,
+ wksta_name,
+ lm_pwd_len ? &lm_blob : NULL,
+ nt_pwd_len ? &nt_blob : NULL,
+ NULL, NULL, NULL,
+ True);
+
+ if (NT_STATUS_IS_OK(nt_status)) {
+ (*user_info)->logon_parameters = logon_parameters;
+ }
+ ret = NT_STATUS_IS_OK(nt_status) ? True : False;
+
+ data_blob_free(&lm_blob);
+ data_blob_free(&nt_blob);
+ return ret;
+}
+
+/****************************************************************************
+ Create an auth_usersupplied_data, making the DATA_BLOBs here.
+ Decrypt and encrypt the passwords.
+****************************************************************************/
+
+BOOL make_user_info_netlogon_interactive(auth_usersupplied_info **user_info,
+ const char *smb_name,
+ const char *client_domain,
+ const char *wksta_name,
+ uint32 logon_parameters,
+ const uchar chal[8],
+ const uchar lm_interactive_pwd[16],
+ const uchar nt_interactive_pwd[16],
+ const uchar *dc_sess_key)
+{
+ char lm_pwd[16];
+ char nt_pwd[16];
+ unsigned char local_lm_response[24];
+ unsigned char local_nt_response[24];
+ unsigned char key[16];
+
+ ZERO_STRUCT(key);
+ memcpy(key, dc_sess_key, 8);
+
+ if (lm_interactive_pwd) memcpy(lm_pwd, lm_interactive_pwd, sizeof(lm_pwd));
+ if (nt_interactive_pwd) memcpy(nt_pwd, nt_interactive_pwd, sizeof(nt_pwd));
+
+#ifdef DEBUG_PASSWORD
+ DEBUG(100,("key:"));
+ dump_data(100, (char *)key, sizeof(key));
+
+ DEBUG(100,("lm owf password:"));
+ dump_data(100, lm_pwd, sizeof(lm_pwd));
+
+ DEBUG(100,("nt owf password:"));
+ dump_data(100, nt_pwd, sizeof(nt_pwd));
+#endif
+
+ if (lm_interactive_pwd)
+ SamOEMhash((uchar *)lm_pwd, key, sizeof(lm_pwd));
+
+ if (nt_interactive_pwd)
+ SamOEMhash((uchar *)nt_pwd, key, sizeof(nt_pwd));
+
+#ifdef DEBUG_PASSWORD
+ DEBUG(100,("decrypt of lm owf password:"));
+ dump_data(100, lm_pwd, sizeof(lm_pwd));
+
+ DEBUG(100,("decrypt of nt owf password:"));
+ dump_data(100, nt_pwd, sizeof(nt_pwd));
+#endif
+
+ if (lm_interactive_pwd)
+ SMBOWFencrypt((const unsigned char *)lm_pwd, chal, local_lm_response);
+
+ if (nt_interactive_pwd)
+ SMBOWFencrypt((const unsigned char *)nt_pwd, chal, local_nt_response);
+
+ /* Password info paranoia */
+ ZERO_STRUCT(key);
+
+ {
+ BOOL ret;
+ NTSTATUS nt_status;
+ DATA_BLOB local_lm_blob;
+ DATA_BLOB local_nt_blob;
+
+ DATA_BLOB lm_interactive_blob;
+ DATA_BLOB nt_interactive_blob;
+
+ if (lm_interactive_pwd) {
+ local_lm_blob = data_blob(local_lm_response, sizeof(local_lm_response));
+ lm_interactive_blob = data_blob(lm_pwd, sizeof(lm_pwd));
+ ZERO_STRUCT(lm_pwd);
+ }
+
+ if (nt_interactive_pwd) {
+ local_nt_blob = data_blob(local_nt_response, sizeof(local_nt_response));
+ nt_interactive_blob = data_blob(nt_pwd, sizeof(nt_pwd));
+ ZERO_STRUCT(nt_pwd);
+ }
+
+ nt_status = make_user_info_map(user_info,
+ smb_name, client_domain,
+ wksta_name,
+ lm_interactive_pwd ? &local_lm_blob : NULL,
+ nt_interactive_pwd ? &local_nt_blob : NULL,
+ lm_interactive_pwd ? &lm_interactive_blob : NULL,
+ nt_interactive_pwd ? &nt_interactive_blob : NULL,
+ NULL,
+ True);
+
+ if (NT_STATUS_IS_OK(nt_status)) {
+ (*user_info)->logon_parameters = logon_parameters;
+ }
+
+ ret = NT_STATUS_IS_OK(nt_status) ? True : False;
+ data_blob_free(&local_lm_blob);
+ data_blob_free(&local_nt_blob);
+ data_blob_free(&lm_interactive_blob);
+ data_blob_free(&nt_interactive_blob);
+ return ret;
+ }
+}
+
+
+/****************************************************************************
+ Create an auth_usersupplied_data structure
+****************************************************************************/
+
+BOOL make_user_info_for_reply(auth_usersupplied_info **user_info,
+ const char *smb_name,
+ const char *client_domain,
+ const uint8 chal[8],
+ DATA_BLOB plaintext_password)
+{
+
+ DATA_BLOB local_lm_blob;
+ DATA_BLOB local_nt_blob;
+ NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
+
+ /*
+ * Not encrypted - do so.
+ */
+
+ DEBUG(5,("make_user_info_for_reply: User passwords not in encrypted format.\n"));
+
+ if (plaintext_password.data) {
+ unsigned char local_lm_response[24];
+
+#ifdef DEBUG_PASSWORD
+ DEBUG(10,("Unencrypted password (len %d):\n",(int)plaintext_password.length));
+ dump_data(100, (const char *)plaintext_password.data, plaintext_password.length);
+#endif
+
+ SMBencrypt( (const char *)plaintext_password.data, (const uchar*)chal, local_lm_response);
+ local_lm_blob = data_blob(local_lm_response, 24);
+
+ /* We can't do an NT hash here, as the password needs to be
+ case insensitive */
+ local_nt_blob = data_blob(NULL, 0);
+
+ } else {
+ local_lm_blob = data_blob(NULL, 0);
+ local_nt_blob = data_blob(NULL, 0);
+ }
+
+ ret = make_user_info_map(user_info, smb_name,
+ client_domain,
+ get_remote_machine_name(),
+ local_lm_blob.data ? &local_lm_blob : NULL,
+ local_nt_blob.data ? &local_nt_blob : NULL,
+ NULL, NULL,
+ plaintext_password.data ? &plaintext_password : NULL,
+ False);
+
+ data_blob_free(&local_lm_blob);
+ return NT_STATUS_IS_OK(ret) ? True : False;
+}
+
+/****************************************************************************
+ Create an auth_usersupplied_data structure
+****************************************************************************/
+
+NTSTATUS make_user_info_for_reply_enc(auth_usersupplied_info **user_info,
+ const char *smb_name,
+ const char *client_domain,
+ DATA_BLOB lm_resp, DATA_BLOB nt_resp)
+{
+ return make_user_info_map(user_info, smb_name,
+ client_domain,
+ get_remote_machine_name(),
+ lm_resp.data ? &lm_resp : NULL,
+ nt_resp.data ? &nt_resp : NULL,
+ NULL, NULL, NULL,
+ True);
+}
+
+/****************************************************************************
+ Create a guest user_info blob, for anonymous authenticaion.
+****************************************************************************/
+
+BOOL make_user_info_guest(auth_usersupplied_info **user_info)
+{
+ NTSTATUS nt_status;
+
+ nt_status = make_user_info(user_info,
+ "","",
+ "","",
+ "",
+ NULL, NULL,
+ NULL, NULL,
+ NULL,
+ True);
+
+ return NT_STATUS_IS_OK(nt_status) ? True : False;
+}
+
+/****************************************************************************
+ prints a NT_USER_TOKEN to debug output.
+****************************************************************************/
+
+void debug_nt_user_token(int dbg_class, int dbg_lev, NT_USER_TOKEN *token)
+{
+ fstring sid_str;
+ size_t i;
+
+ if (!token) {
+ DEBUGC(dbg_class, dbg_lev, ("NT user token: (NULL)\n"));
+ return;
+ }
+
+ DEBUGC(dbg_class, dbg_lev, ("NT user token of user %s\n",
+ sid_to_string(sid_str, &token->user_sids[0]) ));
+ DEBUGADDC(dbg_class, dbg_lev, ("contains %lu SIDs\n", (unsigned long)token->num_sids));
+ for (i = 0; i < token->num_sids; i++)
+ DEBUGADDC(dbg_class, dbg_lev, ("SID[%3lu]: %s\n", (unsigned long)i,
+ sid_to_string(sid_str, &token->user_sids[i])));
+
+ dump_se_priv( dbg_class, dbg_lev, &token->privileges );
+}
+
+/****************************************************************************
+ prints a UNIX 'token' to debug output.
+****************************************************************************/
+
+void debug_unix_user_token(int dbg_class, int dbg_lev, uid_t uid, gid_t gid, int n_groups, gid_t *groups)
+{
+ int i;
+ DEBUGC(dbg_class, dbg_lev, ("UNIX token of user %ld\n", (long int)uid));
+
+ DEBUGADDC(dbg_class, dbg_lev, ("Primary group is %ld and contains %i supplementary groups\n", (long int)gid, n_groups));
+ for (i = 0; i < n_groups; i++)
+ DEBUGADDC(dbg_class, dbg_lev, ("Group[%3i]: %ld\n", i,
+ (long int)groups[i]));
+}
+
+/****************************************************************************
+ Create the SID list for this user.
+****************************************************************************/
+
+static NTSTATUS create_nt_user_token(const DOM_SID *user_sid, const DOM_SID *group_sid,
+ int n_groupSIDs, DOM_SID *groupSIDs,
+ BOOL is_guest, NT_USER_TOKEN **token)
+{
+ NTSTATUS nt_status = NT_STATUS_OK;
+ NT_USER_TOKEN *ptoken;
+ int i;
+ int sid_ndx;
+ DOM_SID domadm;
+ BOOL is_domain_admin = False;
+ BOOL domain_mode = False;
+
+ if ((ptoken = SMB_MALLOC_P(NT_USER_TOKEN)) == NULL) {
+ DEBUG(0, ("create_nt_user_token: Out of memory allocating token\n"));
+ nt_status = NT_STATUS_NO_MEMORY;
+ return nt_status;
+ }
+
+ ZERO_STRUCTP(ptoken);
+
+ ptoken->num_sids = n_groupSIDs + 5;
+
+ if ((ptoken->user_sids = SMB_MALLOC_ARRAY( DOM_SID, ptoken->num_sids )) == NULL) {
+ DEBUG(0, ("create_nt_user_token: Out of memory allocating SIDs\n"));
+ nt_status = NT_STATUS_NO_MEMORY;
+ return nt_status;
+ }
+
+ memset((char*)ptoken->user_sids,0,sizeof(DOM_SID) * ptoken->num_sids);
+
+ /*
+ * Note - user SID *MUST* be first in token !
+ * se_access_check depends on this.
+ *
+ * Primary group SID is second in token. Convention.
+ */
+
+ sid_copy(&ptoken->user_sids[PRIMARY_USER_SID_INDEX], user_sid);
+ if (group_sid)
+ sid_copy(&ptoken->user_sids[PRIMARY_GROUP_SID_INDEX], group_sid);
+
+ /*
+ * Finally add the "standard" SIDs.
+ * The only difference between guest and "anonymous" (which we
+ * don't really support) is the addition of Authenticated_Users.
+ */
+
+ sid_copy(&ptoken->user_sids[2], &global_sid_World);
+ sid_copy(&ptoken->user_sids[3], &global_sid_Network);
+
+ if (is_guest)
+ sid_copy(&ptoken->user_sids[4], &global_sid_Builtin_Guests);
+ else
+ sid_copy(&ptoken->user_sids[4], &global_sid_Authenticated_Users);
+
+ sid_ndx = 5; /* next available spot */
+
+ /* this is where we construct the domain admins SID if we can
+ so that we can add the BUILTIN\Administrators SID to the token */
+
+ ZERO_STRUCT( domadm );
+ if ( IS_DC || lp_server_role()==ROLE_DOMAIN_MEMBER ) {
+ domain_mode = True;
+
+ if ( IS_DC )
+ sid_copy( &domadm, get_global_sam_sid() );
+ else {
+ /* if we a re a member server and cannot find
+ out domain SID then reset the domain_mode flag */
+ if ( !secrets_fetch_domain_sid( lp_workgroup(), &domadm ) )
+ domain_mode = False;
+ }
+
+ sid_append_rid( &domadm, DOMAIN_GROUP_RID_ADMINS );
+ }
+
+ /* add the group SIDs to teh token */
+
+ for (i = 0; i < n_groupSIDs; i++) {
+ size_t check_sid_idx;
+ for (check_sid_idx = 1; check_sid_idx < ptoken->num_sids; check_sid_idx++) {
+ if (sid_equal(&ptoken->user_sids[check_sid_idx],
+ &groupSIDs[i])) {
+ break;
+ }
+ }
+
+ if (check_sid_idx >= ptoken->num_sids) /* Not found already */ {
+ sid_copy(&ptoken->user_sids[sid_ndx++], &groupSIDs[i]);
+ } else {
+ ptoken->num_sids--;
+ }
+
+ /* here we check if the user is a domain admin and add the
+ BUILTIN\Administrators SID to the token the group membership
+ check succeeds. */
+
+ if ( domain_mode ) {
+ if ( sid_equal( &domadm, &groupSIDs[i] ) )
+ is_domain_admin = True;
+ }
+
+ }
+
+ /* finally realloc the SID array and add the BUILTIN\Administrators
+ SID if necessary */
+
+ if ( is_domain_admin ) {
+ DOM_SID *sids;
+
+ if ( !(sids = SMB_REALLOC_ARRAY( ptoken->user_sids, DOM_SID, ptoken->num_sids+1 )) )
+ DEBUG(0,("create_nt_user_token: Failed to realloc SID arry of size %d\n", ptoken->num_sids+1));
+ else {
+ ptoken->user_sids = sids;
+ sid_copy( &(ptoken->user_sids)[ptoken->num_sids++], &global_sid_Builtin_Administrators );
+ }
+ }
+
+ /* add privileges assigned to this user */
+
+ get_privileges_for_sids( &ptoken->privileges, ptoken->user_sids, ptoken->num_sids );
+
+ debug_nt_user_token(DBGC_AUTH, 10, ptoken);
+
+ if ((lp_log_nt_token_command() != NULL) &&
+ (strlen(lp_log_nt_token_command()) > 0)) {
+ TALLOC_CTX *mem_ctx;
+ char *command;
+ fstring sidstr;
+ char *user_sidstr, *group_sidstr;
+
+ mem_ctx = talloc_init("setnttoken");
+ if (mem_ctx == NULL)
+ return NT_STATUS_NO_MEMORY;
+
+ sid_to_string(sidstr, &ptoken->user_sids[0]);
+ user_sidstr = talloc_strdup(mem_ctx, sidstr);
+
+ group_sidstr = talloc_strdup(mem_ctx, "");
+ for (i=1; i<ptoken->num_sids; i++) {
+ sid_to_string(sidstr, &ptoken->user_sids[i]);
+ group_sidstr = talloc_asprintf(mem_ctx, "%s %s",
+ group_sidstr, sidstr);
+ }
+
+ command = SMB_STRDUP(lp_log_nt_token_command());
+ command = realloc_string_sub(command, "%s", user_sidstr);
+ command = realloc_string_sub(command, "%t", group_sidstr);
+ DEBUG(8, ("running command: [%s]\n", command));
+ if (smbrun(command, NULL) != 0) {
+ DEBUG(0, ("Could not log NT token\n"));
+ nt_status = NT_STATUS_ACCESS_DENIED;
+ }
+ talloc_destroy(mem_ctx);
+ SAFE_FREE(command);
+ }
+
+ *token = ptoken;
+
+ return nt_status;
+}
+
+/****************************************************************************
+ Create the SID list for this user.
+****************************************************************************/
+
+NT_USER_TOKEN *create_nt_token(uid_t uid, gid_t gid, int ngroups, gid_t *groups, BOOL is_guest)
+{
+ DOM_SID user_sid;
+ DOM_SID group_sid;
+ DOM_SID *group_sids;
+ NT_USER_TOKEN *token;
+ int i;
+
+ if (!NT_STATUS_IS_OK(uid_to_sid(&user_sid, uid))) {
+ return NULL;
+ }
+ if (!NT_STATUS_IS_OK(gid_to_sid(&group_sid, gid))) {
+ return NULL;
+ }
+
+ group_sids = SMB_MALLOC_ARRAY(DOM_SID, ngroups);
+ if (!group_sids) {
+ DEBUG(0, ("create_nt_token: malloc() failed for DOM_SID list!\n"));
+ return NULL;
+ }
+
+ /* convert the Unix group ids to SIDS */
+
+ for (i = 0; i < ngroups; i++) {
+ if (!NT_STATUS_IS_OK(gid_to_sid(&(group_sids)[i], (groups)[i]))) {
+ DEBUG(1, ("create_nt_token: failed to convert gid %ld to a sid!\n", (long int)groups[i]));
+ SAFE_FREE(group_sids);
+ return NULL;
+ }
+ }
+
+ if (!NT_STATUS_IS_OK(create_nt_user_token(&user_sid, &group_sid,
+ ngroups, group_sids, is_guest, &token))) {
+ SAFE_FREE(group_sids);
+ return NULL;
+ }
+
+ SAFE_FREE(group_sids);
+
+ return token;
+}
+
+/******************************************************************************
+ Create a token for the root user to be used internally by smbd.
+ This is similar to running under the context of the LOCAL_SYSTEM account
+ in Windows. This is a read-only token. Do not modify it or free() it.
+ Create a copy if your need to change it.
+******************************************************************************/
+
+NT_USER_TOKEN *get_root_nt_token( void )
+{
+ static NT_USER_TOKEN *token = NULL;
+ DOM_SID u_sid, g_sid;
+ DOM_SID g_sids[1];
+ struct passwd *pw;
+ NTSTATUS result;
+
+ if ( token )
+ return token;
+
+ if ( !(pw = getpwnam( "root" )) ) {
+ DEBUG(0,("get_root_nt_token: getpwnam\"root\") failed!\n"));
+ return NULL;
+ }
+
+ /* get the user and primary group SIDs; although the
+ BUILTIN\Administrators SId is really the one that matters here */
+
+ if ( !NT_STATUS_IS_OK(uid_to_sid(&u_sid, pw->pw_uid)) )
+ return NULL;
+ if ( !NT_STATUS_IS_OK(gid_to_sid(&g_sid, pw->pw_gid)) )
+ return NULL;
+
+ sid_copy( &g_sids[0], &global_sid_Builtin_Administrators );
+
+ result = create_nt_user_token( &u_sid, &g_sid, 1, g_sids, False, &token);
+
+ return NT_STATUS_IS_OK(result) ? token : NULL;
+}
+
+/******************************************************************************
+ * this function returns the groups (SIDs) of the local SAM the user is in.
+ * If this samba server is a DC of the domain the user belongs to, it returns
+ * both domain groups and local / builtin groups. If the user is in a trusted
+ * domain, or samba is a member server of a domain, then this function returns
+ * local and builtin groups the user is a member of.
+ *
+ * currently this is a hack, as there is no sam implementation that is capable
+ * of groups.
+ *
+ * NOTE!! This function will fail if you pass in a winbind user without
+ * the domain --jerry
+ ******************************************************************************/
+
+static NTSTATUS get_user_groups(const char *username, uid_t uid, gid_t gid,
+ size_t *n_groups, DOM_SID **groups, gid_t **unix_groups)
+{
+ int n_unix_groups;
+ int i;
+
+ *n_groups = 0;
+ *groups = NULL;
+
+ if (strchr(username, *lp_winbind_separator()) == NULL) {
+ NTSTATUS result;
+
+ become_root();
+ result = pdb_enum_group_memberships(username, gid, groups,
+ unix_groups, n_groups);
+ unbecome_root();
+ return result;
+ }
+
+ /* We have the separator, this must be winbind */
+
+ n_unix_groups = winbind_getgroups( username, unix_groups );
+
+ DEBUG(10,("get_user_groups: winbind_getgroups(%s): result = %s\n",
+ username, n_unix_groups == -1 ? "FAIL" : "SUCCESS"));
+
+ if ( n_unix_groups == -1 )
+ return NT_STATUS_NO_SUCH_USER; /* what should this return
+ * value be? */
+
+ debug_unix_user_token(DBGC_CLASS, 5, uid, gid, n_unix_groups, *unix_groups);
+
+ /* now setup the space for storing the SIDS */
+
+ if (n_unix_groups > 0) {
+
+ *groups = SMB_MALLOC_ARRAY(DOM_SID, n_unix_groups);
+
+ if (!*groups) {
+ DEBUG(0, ("get_user_group: malloc() failed for DOM_SID list!\n"));
+ SAFE_FREE(*unix_groups);
+ return NT_STATUS_NO_MEMORY;
+ }
+ }
+
+ *n_groups = n_unix_groups;
+
+ for (i = 0; i < *n_groups; i++) {
+ if (!NT_STATUS_IS_OK(gid_to_sid(&(*groups)[i], (*unix_groups)[i]))) {
+ DEBUG(1, ("get_user_groups: failed to convert gid %ld to a sid!\n",
+ (long int)(*unix_groups)[i+1]));
+ SAFE_FREE(*groups);
+ SAFE_FREE(*unix_groups);
+ return NT_STATUS_NO_SUCH_USER;
+ }
+ }
+
+ return NT_STATUS_OK;
+}
+
+/***************************************************************************
+ Make a user_info struct
+***************************************************************************/
+
+static NTSTATUS make_server_info(auth_serversupplied_info **server_info)
+{
+ *server_info = SMB_MALLOC_P(auth_serversupplied_info);
+ if (!*server_info) {
+ DEBUG(0,("make_server_info: malloc failed!\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+ ZERO_STRUCTP(*server_info);
+
+ /* Initialise the uid and gid values to something non-zero
+ which may save us from giving away root access if there
+ is a bug in allocating these fields. */
+
+ (*server_info)->uid = -1;
+ (*server_info)->gid = -1;
+
+ return NT_STATUS_OK;
+}
+
+/***************************************************************************
+Fill a server_info struct from a SAM_ACCOUNT with their groups
+***************************************************************************/
+
+static NTSTATUS add_user_groups(auth_serversupplied_info **server_info,
+ const char * unix_username,
+ SAM_ACCOUNT *sampass,
+ uid_t uid, gid_t gid)
+{
+ NTSTATUS nt_status;
+ const DOM_SID *user_sid = pdb_get_user_sid(sampass);
+ const DOM_SID *group_sid = pdb_get_group_sid(sampass);
+ size_t n_groupSIDs = 0;
+ DOM_SID *groupSIDs = NULL;
+ gid_t *unix_groups = NULL;
+ NT_USER_TOKEN *token;
+ BOOL is_guest;
+ uint32 rid;
+
+ nt_status = get_user_groups(unix_username, uid, gid,
+ &n_groupSIDs, &groupSIDs, &unix_groups);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ DEBUG(4,("get_user_groups_from_local_sam failed\n"));
+ free_server_info(server_info);
+ return nt_status;
+ }
+
+ is_guest = (sid_peek_rid(user_sid, &rid) && rid == DOMAIN_USER_RID_GUEST);
+
+ if (!NT_STATUS_IS_OK(nt_status = create_nt_user_token(user_sid, group_sid,
+ n_groupSIDs, groupSIDs, is_guest,
+ &token)))
+ {
+ DEBUG(4,("create_nt_user_token failed\n"));
+ SAFE_FREE(groupSIDs);
+ SAFE_FREE(unix_groups);
+ free_server_info(server_info);
+ return nt_status;
+ }
+
+ SAFE_FREE(groupSIDs);
+
+ (*server_info)->n_groups = n_groupSIDs;
+ (*server_info)->groups = unix_groups;
+ (*server_info)->ptok = token;
+
+ return nt_status;
+}
+
+/***************************************************************************
+ Make (and fill) a user_info struct from a SAM_ACCOUNT
+***************************************************************************/
+
+NTSTATUS make_server_info_sam(auth_serversupplied_info **server_info,
+ SAM_ACCOUNT *sampass)
+{
+ NTSTATUS nt_status;
+ struct passwd *pwd;
+
+ if (!NT_STATUS_IS_OK(nt_status = make_server_info(server_info)))
+ return nt_status;
+
+ (*server_info)->sam_account = sampass;
+
+ if ( !(pwd = getpwnam_alloc(pdb_get_username(sampass))) ) {
+ DEBUG(1, ("User %s in passdb, but getpwnam() fails!\n",
+ pdb_get_username(sampass)));
+ free_server_info(server_info);
+ return NT_STATUS_NO_SUCH_USER;
+ }
+ (*server_info)->unix_name = smb_xstrdup(pwd->pw_name);
+ (*server_info)->gid = pwd->pw_gid;
+ (*server_info)->uid = pwd->pw_uid;
+
+ passwd_free(&pwd);
+
+ if (!NT_STATUS_IS_OK(nt_status = add_user_groups(server_info, pdb_get_username(sampass),
+ sampass,
+ (*server_info)->uid,
+ (*server_info)->gid)))
+ {
+ free_server_info(server_info);
+ return nt_status;
+ }
+
+ (*server_info)->sam_fill_level = SAM_FILL_ALL;
+ DEBUG(5,("make_server_info_sam: made server info for user %s -> %s\n",
+ pdb_get_username(sampass),
+ (*server_info)->unix_name));
+
+ return nt_status;
+}
+
+/***************************************************************************
+ Make (and fill) a user_info struct from a Kerberos PAC logon_info by conversion
+ to a SAM_ACCOUNT
+***************************************************************************/
+
+NTSTATUS make_server_info_pac(auth_serversupplied_info **server_info,
+ char *unix_username,
+ struct passwd *pwd,
+ PAC_LOGON_INFO *logon_info)
+{
+ NTSTATUS nt_status;
+ SAM_ACCOUNT *sampass = NULL;
+ DOM_SID user_sid, group_sid;
+ fstring dom_name;
+
+ if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_pw(&sampass, pwd))) {
+ return nt_status;
+ }
+ if (!NT_STATUS_IS_OK(nt_status = make_server_info(server_info))) {
+ return nt_status;
+ }
+
+ /* only copy user_sid, group_sid and domain name out of the PAC for
+ * now, we will benefit from more later - Guenther */
+
+ sid_copy(&user_sid, &logon_info->info3.dom_sid.sid);
+ sid_append_rid(&user_sid, logon_info->info3.user_rid);
+ pdb_set_user_sid(sampass, &user_sid, PDB_SET);
+
+ sid_copy(&group_sid, &logon_info->info3.dom_sid.sid);
+ sid_append_rid(&group_sid, logon_info->info3.group_rid);
+ pdb_set_group_sid(sampass, &group_sid, PDB_SET);
+
+ unistr2_to_ascii(dom_name, &logon_info->info3.uni_logon_dom, -1);
+ pdb_set_domain(sampass, dom_name, PDB_SET);
+
+ pdb_set_logon_count(sampass, logon_info->info3.logon_count, PDB_SET);
+
+ (*server_info)->sam_account = sampass;
+
+ if (!NT_STATUS_IS_OK(nt_status = add_user_groups(server_info, unix_username,
+ sampass, pwd->pw_uid, pwd->pw_gid)))
+ {
+ return nt_status;
+ }
+
+ (*server_info)->unix_name = smb_xstrdup(unix_username);
+
+ (*server_info)->sam_fill_level = SAM_FILL_ALL;
+ (*server_info)->uid = pwd->pw_uid;
+ (*server_info)->gid = pwd->pw_gid;
+ return nt_status;
+}
+
+
+/***************************************************************************
+ Make (and fill) a user_info struct from a 'struct passwd' by conversion
+ to a SAM_ACCOUNT
+***************************************************************************/
+
+NTSTATUS make_server_info_pw(auth_serversupplied_info **server_info,
+ char *unix_username,
+ struct passwd *pwd)
+{
+ NTSTATUS nt_status;
+ SAM_ACCOUNT *sampass = NULL;
+ if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_pw(&sampass, pwd))) {
+ return nt_status;
+ }
+ if (!NT_STATUS_IS_OK(nt_status = make_server_info(server_info))) {
+ return nt_status;
+ }
+
+ (*server_info)->sam_account = sampass;
+
+ if (!NT_STATUS_IS_OK(nt_status = add_user_groups(server_info, unix_username,
+ sampass, pwd->pw_uid, pwd->pw_gid)))
+ {
+ return nt_status;
+ }
+
+ (*server_info)->unix_name = smb_xstrdup(unix_username);
+
+ (*server_info)->sam_fill_level = SAM_FILL_ALL;
+ (*server_info)->uid = pwd->pw_uid;
+ (*server_info)->gid = pwd->pw_gid;
+ return nt_status;
+}
+
+/***************************************************************************
+ Make (and fill) a user_info struct for a guest login.
+***************************************************************************/
+
+static NTSTATUS make_new_server_info_guest(auth_serversupplied_info **server_info)
+{
+ NTSTATUS nt_status;
+ SAM_ACCOUNT *sampass = NULL;
+ DOM_SID guest_sid;
+
+ if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(&sampass))) {
+ return nt_status;
+ }
+
+ sid_copy(&guest_sid, get_global_sam_sid());
+ sid_append_rid(&guest_sid, DOMAIN_USER_RID_GUEST);
+
+ become_root();
+ if (!pdb_getsampwsid(sampass, &guest_sid)) {
+ unbecome_root();
+ return NT_STATUS_NO_SUCH_USER;
+ }
+ unbecome_root();
+
+ nt_status = make_server_info_sam(server_info, sampass);
+
+ if (NT_STATUS_IS_OK(nt_status)) {
+ static const char zeros[16];
+ (*server_info)->guest = True;
+
+ /* annoying, but the Guest really does have a session key,
+ and it is all zeros! */
+ (*server_info)->user_session_key = data_blob(zeros, sizeof(zeros));
+ (*server_info)->lm_session_key = data_blob(zeros, sizeof(zeros));
+ }
+
+ return nt_status;
+}
+
+static auth_serversupplied_info *copy_serverinfo(auth_serversupplied_info *src)
+{
+ auth_serversupplied_info *dst;
+
+ if (!NT_STATUS_IS_OK(make_server_info(&dst)))
+ return NULL;
+
+ dst->guest = src->guest;
+ dst->uid = src->uid;
+ dst->gid = src->gid;
+ dst->n_groups = src->n_groups;
+ if (src->n_groups != 0)
+ dst->groups = memdup(src->groups, sizeof(gid_t)*dst->n_groups);
+ else
+ dst->groups = NULL;
+ dst->ptok = dup_nt_token(src->ptok);
+ dst->user_session_key = data_blob(src->user_session_key.data,
+ src->user_session_key.length);
+ dst->lm_session_key = data_blob(src->lm_session_key.data,
+ src->lm_session_key.length);
+ pdb_copy_sam_account(src->sam_account, &dst->sam_account);
+ dst->pam_handle = NULL;
+ dst->unix_name = smb_xstrdup(src->unix_name);
+
+ return dst;
+}
+
+static auth_serversupplied_info *guest_info = NULL;
+
+BOOL init_guest_info(void)
+{
+ if (guest_info != NULL)
+ return True;
+
+ return NT_STATUS_IS_OK(make_new_server_info_guest(&guest_info));
+}
+
+NTSTATUS make_server_info_guest(auth_serversupplied_info **server_info)
+{
+ *server_info = copy_serverinfo(guest_info);
+ return (*server_info != NULL) ? NT_STATUS_OK : NT_STATUS_NO_MEMORY;
+}
+
+/***************************************************************************
+ Purely internal function for make_server_info_info3
+ Fill the sam account from getpwnam
+***************************************************************************/
+static NTSTATUS fill_sam_account(TALLOC_CTX *mem_ctx,
+ const char *domain,
+ const char *username,
+ char **found_username,
+ uid_t *uid, gid_t *gid,
+ SAM_ACCOUNT **sam_account)
+{
+ NTSTATUS nt_status;
+ fstring dom_user, lower_username;
+ fstring real_username;
+ struct passwd *passwd;
+
+ fstrcpy( lower_username, username );
+ strlower_m( lower_username );
+
+ fstr_sprintf(dom_user, "%s%c%s", domain, *lp_winbind_separator(),
+ lower_username);
+
+ /* get the passwd struct but don't create the user if he/she
+ does not exist. We were explicitly called from a following
+ a winbindd authentication request so we should assume that
+ nss_winbindd is working */
+
+ map_username( dom_user );
+
+ if ( !(passwd = smb_getpwnam( dom_user, real_username, True )) )
+ return NT_STATUS_NO_SUCH_USER;
+
+ *uid = passwd->pw_uid;
+ *gid = passwd->pw_gid;
+
+ /* This is pointless -- there is no suport for differing
+ unix and windows names. Make sure to always store the
+ one we actually looked up and succeeded. Have I mentioned
+ why I hate the 'winbind use default domain' parameter?
+ --jerry */
+
+ *found_username = talloc_strdup( mem_ctx, real_username );
+
+ DEBUG(5,("fill_sam_account: located username was [%s]\n",
+ *found_username));
+
+ nt_status = pdb_init_sam_pw(sam_account, passwd);
+ passwd_free(&passwd);
+ return nt_status;
+}
+
+/****************************************************************************
+ Wrapper to allow the getpwnam() call to strip the domain name and
+ try again in case a local UNIX user is already there. Also run through
+ the username if we fallback to the username only.
+ ****************************************************************************/
+
+struct passwd *smb_getpwnam( char *domuser, fstring save_username, BOOL create )
+{
+ struct passwd *pw = NULL;
+ char *p;
+ fstring username;
+
+ /* we only save a copy of the username it has been mangled
+ by winbindd use default domain */
+
+ save_username[0] = '\0';
+
+ /* don't call map_username() here since it has to be done higher
+ up the stack so we don't call it mutliple times */
+
+ fstrcpy( username, domuser );
+
+ p = strchr_m( username, *lp_winbind_separator() );
+
+ /* code for a DOMAIN\user string */
+
+ if ( p ) {
+ fstring strip_username;
+
+ pw = Get_Pwnam_alloc( domuser );
+ if ( pw ) {
+ /* make sure we get the case of the username correct */
+ /* work around 'winbind use default domain = yes' */
+
+ if ( !strchr_m( pw->pw_name, *lp_winbind_separator() ) ) {
+ char *domain;
+
+ /* split the domain and username into 2 strings */
+ *p = '\0';
+ domain = username;
+
+ fstr_sprintf(save_username, "%s%c%s", domain, *lp_winbind_separator(), pw->pw_name);
+ }
+ else
+ fstrcpy( save_username, pw->pw_name );
+
+ /* whew -- done! */
+ return pw;
+ }
+
+ /* setup for lookup of just the username */
+ /* remember that p and username are overlapping memory */
+
+ p++;
+ fstrcpy( strip_username, p );
+ fstrcpy( username, strip_username );
+ }
+
+ /* just lookup a plain username */
+
+ pw = Get_Pwnam_alloc(username);
+
+ /* Create local user if requested. */
+
+ if ( !pw && create ) {
+ /* Don't add a machine account. */
+ if (username[strlen(username)-1] == '$')
+ return NULL;
+
+ smb_create_user(NULL, username, NULL);
+ pw = Get_Pwnam_alloc(username);
+ }
+
+ /* one last check for a valid passwd struct */
+
+ if ( pw )
+ fstrcpy( save_username, pw->pw_name );
+
+ return pw;
+}
+
+/***************************************************************************
+ Make a server_info struct from the info3 returned by a domain logon
+***************************************************************************/
+
+NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
+ const char *internal_username,
+ const char *sent_nt_username,
+ const char *domain,
+ auth_serversupplied_info **server_info,
+ NET_USER_INFO_3 *info3)
+{
+ static const char zeros[16];
+
+ NTSTATUS nt_status = NT_STATUS_OK;
+ char *found_username;
+ const char *nt_domain;
+ const char *nt_username;
+
+ SAM_ACCOUNT *sam_account = NULL;
+ DOM_SID user_sid;
+ DOM_SID group_sid;
+
+ uid_t uid;
+ gid_t gid;
+
+ size_t n_lgroupSIDs;
+ DOM_SID *lgroupSIDs = NULL;
+
+ gid_t *unix_groups = NULL;
+ NT_USER_TOKEN *token;
+
+ DOM_SID *all_group_SIDs;
+ size_t i;
+
+ /*
+ Here is where we should check the list of
+ trusted domains, and verify that the SID
+ matches.
+ */
+
+ sid_copy(&user_sid, &info3->dom_sid.sid);
+ if (!sid_append_rid(&user_sid, info3->user_rid)) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ sid_copy(&group_sid, &info3->dom_sid.sid);
+ if (!sid_append_rid(&group_sid, info3->group_rid)) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ if (!(nt_username = unistr2_tdup(mem_ctx, &(info3->uni_user_name)))) {
+ /* If the server didn't give us one, just use the one we sent them */
+ nt_username = sent_nt_username;
+ }
+
+ if (!(nt_domain = unistr2_tdup(mem_ctx, &(info3->uni_logon_dom)))) {
+ /* If the server didn't give us one, just use the one we sent them */
+ nt_domain = domain;
+ }
+
+ /* try to fill the SAM account.. If getpwnam() fails, then try the
+ add user script (2.2.x behavior).
+
+ We use the _unmapped_ username here in an attempt to provide
+ consistent username mapping behavior between kerberos and NTLM[SSP]
+ authentication in domain mode security. I.E. Username mapping should
+ be applied to the fully qualified username (e.g. DOMAIN\user) and
+ no just the login name. Yes this mean swe called map_username()
+ unnecessarily in make_user_info_map() but that is how the current
+ code is designed. Making the change here is the least disruptive
+ place. -- jerry */
+
+ nt_status = fill_sam_account(mem_ctx, nt_domain, sent_nt_username,
+ &found_username, &uid, &gid, &sam_account);
+
+ if (NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_SUCH_USER)) {
+ DEBUG(3,("User %s does not exist, trying to add it\n", internal_username));
+ smb_create_user( nt_domain, sent_nt_username, NULL);
+ nt_status = fill_sam_account( mem_ctx, nt_domain, sent_nt_username,
+ &found_username, &uid, &gid, &sam_account );
+ }
+
+ /* if we still don't have a valid unix account check for
+ 'map to gues = bad uid' */
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ if ( lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_UID ) {
+ make_server_info_guest(server_info);
+ return NT_STATUS_OK;
+ }
+
+ DEBUG(0, ("make_server_info_info3: pdb_init_sam failed!\n"));
+ return nt_status;
+ }
+
+ if (!pdb_set_nt_username(sam_account, nt_username, PDB_CHANGED)) {
+ pdb_free_sam(&sam_account);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!pdb_set_username(sam_account, nt_username, PDB_CHANGED)) {
+ pdb_free_sam(&sam_account);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!pdb_set_domain(sam_account, nt_domain, PDB_CHANGED)) {
+ pdb_free_sam(&sam_account);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!pdb_set_user_sid(sam_account, &user_sid, PDB_CHANGED)) {
+ pdb_free_sam(&sam_account);
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ if (!pdb_set_group_sid(sam_account, &group_sid, PDB_CHANGED)) {
+ pdb_free_sam(&sam_account);
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+
+ if (!pdb_set_fullname(sam_account, unistr2_static(&(info3->uni_full_name)),
+ PDB_CHANGED)) {
+ pdb_free_sam(&sam_account);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!pdb_set_logon_script(sam_account, unistr2_static(&(info3->uni_logon_script)), PDB_CHANGED)) {
+ pdb_free_sam(&sam_account);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!pdb_set_profile_path(sam_account, unistr2_static(&(info3->uni_profile_path)), PDB_CHANGED)) {
+ pdb_free_sam(&sam_account);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!pdb_set_homedir(sam_account, unistr2_static(&(info3->uni_home_dir)), PDB_CHANGED)) {
+ pdb_free_sam(&sam_account);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!pdb_set_dir_drive(sam_account, unistr2_static(&(info3->uni_dir_drive)), PDB_CHANGED)) {
+ pdb_free_sam(&sam_account);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!NT_STATUS_IS_OK(nt_status = make_server_info(server_info))) {
+ DEBUG(4, ("make_server_info failed!\n"));
+ pdb_free_sam(&sam_account);
+ return nt_status;
+ }
+
+ /* save this here to _net_sam_logon() doesn't fail (it assumes a
+ valid SAM_ACCOUNT) */
+
+ (*server_info)->sam_account = sam_account;
+
+ (*server_info)->unix_name = smb_xstrdup(found_username);
+
+ /* Fill in the unix info we found on the way */
+
+ (*server_info)->sam_fill_level = SAM_FILL_ALL;
+ (*server_info)->uid = uid;
+ (*server_info)->gid = gid;
+
+ /* Store the user group information in the server_info
+ returned to the caller. */
+
+ nt_status = get_user_groups((*server_info)->unix_name,
+ uid, gid, &n_lgroupSIDs, &lgroupSIDs, &unix_groups);
+
+ if ( !NT_STATUS_IS_OK(nt_status) ) {
+ DEBUG(4,("get_user_groups failed\n"));
+ return nt_status;
+ }
+
+ (*server_info)->groups = unix_groups;
+ (*server_info)->n_groups = n_lgroupSIDs;
+
+ /* Create a 'combined' list of all SIDs we might want in the SD */
+
+ all_group_SIDs = SMB_MALLOC_ARRAY(DOM_SID,info3->num_groups2 + info3->num_other_sids + n_lgroupSIDs);
+
+ if (!all_group_SIDs) {
+ DEBUG(0, ("malloc() failed for DOM_SID list!\n"));
+ SAFE_FREE(lgroupSIDs);
+ free_server_info(server_info);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ /* and create (by appending rids) the 'domain' sids */
+
+ for (i = 0; i < info3->num_groups2; i++) {
+
+ sid_copy(&all_group_SIDs[i], &(info3->dom_sid.sid));
+
+ if (!sid_append_rid(&all_group_SIDs[i], info3->gids[i].g_rid)) {
+
+ nt_status = NT_STATUS_INVALID_PARAMETER;
+
+ DEBUG(3,("could not append additional group rid 0x%x\n",
+ info3->gids[i].g_rid));
+
+ SAFE_FREE(lgroupSIDs);
+ SAFE_FREE(all_group_SIDs);
+ free_server_info(server_info);
+
+ return nt_status;
+
+ }
+ }
+
+ /* Copy 'other' sids. We need to do sid filtering here to
+ prevent possible elevation of privileges. See:
+
+ http://www.microsoft.com/windows2000/techinfo/administration/security/sidfilter.asp
+ */
+
+ for (i = 0; i < info3->num_other_sids; i++) {
+ sid_copy(&all_group_SIDs[info3->num_groups2 + i],
+ &info3->other_sids[i].sid);
+ }
+
+
+ /* add local alias sids */
+
+ for (i = 0; i < n_lgroupSIDs; i++) {
+ sid_copy(&all_group_SIDs[info3->num_groups2 +
+ info3->num_other_sids + i],
+ &lgroupSIDs[i]);
+ }
+
+ /* Where are the 'global' sids... */
+
+ /* can the user be guest? if yes, where is it stored? */
+
+ nt_status = create_nt_user_token(&user_sid, &group_sid,
+ info3->num_groups2 + info3->num_other_sids + n_lgroupSIDs,
+ all_group_SIDs, False, &token);
+
+ if ( !NT_STATUS_IS_OK(nt_status) ) {
+ DEBUG(4,("create_nt_user_token failed\n"));
+ SAFE_FREE(lgroupSIDs);
+ SAFE_FREE(all_group_SIDs);
+ free_server_info(server_info);
+ return nt_status;
+ }
+
+ (*server_info)->login_server = unistr2_tdup(mem_ctx,
+ &(info3->uni_logon_srv));
+
+ (*server_info)->ptok = token;
+
+ SAFE_FREE(lgroupSIDs);
+ SAFE_FREE(all_group_SIDs);
+
+ /* ensure we are never given NULL session keys */
+
+ if (memcmp(info3->user_sess_key, zeros, sizeof(zeros)) == 0) {
+ (*server_info)->user_session_key = data_blob(NULL, 0);
+ } else {
+ (*server_info)->user_session_key = data_blob(info3->user_sess_key, sizeof(info3->user_sess_key));
+ }
+
+ if (memcmp(info3->lm_sess_key, zeros, 8) == 0) {
+ (*server_info)->lm_session_key = data_blob(NULL, 0);
+ } else {
+ (*server_info)->lm_session_key = data_blob(info3->lm_sess_key, sizeof(info3->lm_sess_key));
+ }
+
+ return NT_STATUS_OK;
+}
+
+/***************************************************************************
+ Free a user_info struct
+***************************************************************************/
+
+void free_user_info(auth_usersupplied_info **user_info)
+{
+ DEBUG(5,("attempting to free (and zero) a user_info structure\n"));
+ if (*user_info != NULL) {
+ if ((*user_info)->smb_name.str) {
+ DEBUG(10,("structure was created for %s\n", (*user_info)->smb_name.str));
+ }
+ SAFE_FREE((*user_info)->smb_name.str);
+ SAFE_FREE((*user_info)->internal_username.str);
+ SAFE_FREE((*user_info)->client_domain.str);
+ SAFE_FREE((*user_info)->domain.str);
+ SAFE_FREE((*user_info)->wksta_name.str);
+ data_blob_free(&(*user_info)->lm_resp);
+ data_blob_free(&(*user_info)->nt_resp);
+ data_blob_clear_free(&(*user_info)->lm_interactive_pwd);
+ data_blob_clear_free(&(*user_info)->nt_interactive_pwd);
+ data_blob_clear_free(&(*user_info)->plaintext_password);
+ ZERO_STRUCT(**user_info);
+ }
+ SAFE_FREE(*user_info);
+}
+
+/***************************************************************************
+ Clear out a server_info struct that has been allocated
+***************************************************************************/
+
+void free_server_info(auth_serversupplied_info **server_info)
+{
+ DEBUG(5,("attempting to free (and zero) a server_info structure\n"));
+ if (*server_info != NULL) {
+ pdb_free_sam(&(*server_info)->sam_account);
+
+ /* call pam_end here, unless we know we are keeping it */
+ delete_nt_token( &(*server_info)->ptok );
+ SAFE_FREE((*server_info)->groups);
+ SAFE_FREE((*server_info)->unix_name);
+ data_blob_free(&(*server_info)->lm_session_key);
+ data_blob_free(&(*server_info)->user_session_key);
+ ZERO_STRUCT(**server_info);
+ }
+ SAFE_FREE(*server_info);
+}
+
+/***************************************************************************
+ Make an auth_methods struct
+***************************************************************************/
+
+BOOL make_auth_methods(struct auth_context *auth_context, auth_methods **auth_method)
+{
+ if (!auth_context) {
+ smb_panic("no auth_context supplied to make_auth_methods()!\n");
+ }
+
+ if (!auth_method) {
+ smb_panic("make_auth_methods: pointer to auth_method pointer is NULL!\n");
+ }
+
+ *auth_method = TALLOC_P(auth_context->mem_ctx, auth_methods);
+ if (!*auth_method) {
+ DEBUG(0,("make_auth_method: malloc failed!\n"));
+ return False;
+ }
+ ZERO_STRUCTP(*auth_method);
+
+ return True;
+}
+
+/****************************************************************************
+ Delete a SID token.
+****************************************************************************/
+
+void delete_nt_token(NT_USER_TOKEN **pptoken)
+{
+ if (*pptoken) {
+ NT_USER_TOKEN *ptoken = *pptoken;
+
+ SAFE_FREE( ptoken->user_sids );
+ ZERO_STRUCTP(ptoken);
+ }
+ SAFE_FREE(*pptoken);
+}
+
+/****************************************************************************
+ Duplicate a SID token.
+****************************************************************************/
+
+NT_USER_TOKEN *dup_nt_token(NT_USER_TOKEN *ptoken)
+{
+ NT_USER_TOKEN *token;
+
+ if (!ptoken)
+ return NULL;
+
+ if ((token = SMB_MALLOC_P(NT_USER_TOKEN)) == NULL)
+ return NULL;
+
+ ZERO_STRUCTP(token);
+
+ token->user_sids = (DOM_SID *)memdup( ptoken->user_sids, sizeof(DOM_SID) * ptoken->num_sids );
+
+ if ( !token ) {
+ SAFE_FREE(token);
+ return NULL;
+ }
+
+ token->num_sids = ptoken->num_sids;
+
+ /* copy the privileges; don't consider failure to be critical here */
+
+ if ( !se_priv_copy( &token->privileges, &ptoken->privileges ) ) {
+ DEBUG(0,("dup_nt_token: Failure to copy SE_PRIV!. Continuing with 0 privileges assigned.\n"));
+ }
+
+ return token;
+}
+
+/****************************************************************************
+ Check for a SID in an NT_USER_TOKEN
+****************************************************************************/
+
+BOOL nt_token_check_sid ( DOM_SID *sid, NT_USER_TOKEN *token )
+{
+ int i;
+
+ if ( !sid || !token )
+ return False;
+
+ for ( i=0; i<token->num_sids; i++ ) {
+ if ( sid_equal( sid, &token->user_sids[i] ) )
+ return True;
+ }
+
+ return False;
+}
+
+BOOL nt_token_check_domain_rid( NT_USER_TOKEN *token, uint32 rid )
+{
+ DOM_SID domain_sid;
+
+ /* if we are a domain member, the get the domain SID, else for
+ a DC or standalone server, use our own SID */
+
+ if ( lp_server_role() == ROLE_DOMAIN_MEMBER ) {
+ if ( !secrets_fetch_domain_sid( lp_workgroup(), &domain_sid ) ) {
+ DEBUG(1,("nt_token_check_domain_rid: Cannot lookup SID for domain [%s]\n",
+ lp_workgroup()));
+ return False;
+ }
+ }
+ else
+ sid_copy( &domain_sid, get_global_sam_sid() );
+
+ sid_append_rid( &domain_sid, rid );
+
+ return nt_token_check_sid( &domain_sid, token );\
+}
+
+/**
+ * Verify whether or not given domain is trusted.
+ *
+ * @param domain_name name of the domain to be verified
+ * @return true if domain is one of the trusted once or
+ * false if otherwise
+ **/
+
+BOOL is_trusted_domain(const char* dom_name)
+{
+ DOM_SID trustdom_sid;
+ char *pass = NULL;
+ time_t lct;
+ BOOL ret;
+
+ /* no trusted domains for a standalone server */
+
+ if ( lp_server_role() == ROLE_STANDALONE )
+ return False;
+
+ /* if we are a DC, then check for a direct trust relationships */
+
+ if ( IS_DC ) {
+ become_root();
+ DEBUG (5,("is_trusted_domain: Checking for domain trust with [%s]\n",
+ dom_name ));
+ ret = secrets_fetch_trusted_domain_password(dom_name, &pass, &trustdom_sid, &lct);
+ unbecome_root();
+ SAFE_FREE(pass);
+ if (ret)
+ return True;
+ }
+ else {
+ NSS_STATUS result;
+
+ /* If winbind is around, ask it */
+
+ result = wb_is_trusted_domain(dom_name);
+
+ if (result == NSS_STATUS_SUCCESS) {
+ return True;
+ }
+
+ if (result == NSS_STATUS_NOTFOUND) {
+ /* winbind could not find the domain */
+ return False;
+ }
+
+ /* The only other possible result is that winbind is not up
+ and running. We need to update the trustdom_cache
+ ourselves */
+
+ update_trustdom_cache();
+ }
+
+ /* now the trustdom cache should be available a DC could still
+ * have a transitive trust so fall back to the cache of trusted
+ * domains (like a domain member would use */
+
+ if ( trustdom_cache_fetch(dom_name, &trustdom_sid) ) {
+ return True;
+ }
+
+ return False;
+}
+
projects / samba / blobdiff