it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
+#include "smbd/globals.h"
+#include "../libcli/auth/libcli_auth.h"
+#include "../lib/crypto/arcfour.h"
+#include "rpc_client/init_lsa.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_AUTH
-/****************************************************************************
- Ensure primary group SID is always at position 0 in a
- auth_serversupplied_info struct.
-****************************************************************************/
-
-static void sort_sid_array_for_smbd(auth_serversupplied_info *result,
- const DOM_SID *pgroup_sid)
-{
- unsigned int i;
-
- if (!result->sids) {
- return;
- }
-
- if (sid_compare(&result->sids[0], pgroup_sid)==0) {
- return;
- }
-
- for (i = 1; i < result->num_sids; i++) {
- if (sid_compare(pgroup_sid,
- &result->sids[i]) == 0) {
- sid_copy(&result->sids[i], &result->sids[0]);
- sid_copy(&result->sids[0], pgroup_sid);
- return;
- }
- }
-}
-
/****************************************************************************
Create a UNIX user on demand.
****************************************************************************/
-static int smb_create_user(const char *domain, const char *unix_username, const char *homedir)
+static int _smb_create_user(const char *domain, const char *unix_username, const char *homedir)
{
TALLOC_CTX *ctx = talloc_tos();
char *add_script;
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 == NULL) {
- 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 = SMB_STRDUP(smb_name);
- if ((*user_info)->smb_name == NULL) {
- free_user_info(user_info);
- return NT_STATUS_NO_MEMORY;
- }
-
- (*user_info)->internal_username = SMB_STRDUP(internal_username);
- if ((*user_info)->internal_username == NULL) {
- free_user_info(user_info);
- return NT_STATUS_NO_MEMORY;
- }
-
- (*user_info)->domain = SMB_STRDUP(domain);
- if ((*user_info)->domain == NULL) {
- free_user_info(user_info);
- return NT_STATUS_NO_MEMORY;
- }
-
- (*user_info)->client_domain = SMB_STRDUP(client_domain);
- if ((*user_info)->client_domain == NULL) {
- free_user_info(user_info);
- return NT_STATUS_NO_MEMORY;
- }
-
- (*user_info)->wksta_name = SMB_STRDUP(wksta_name);
- if ((*user_info)->wksta_name == NULL) {
- 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,
+NTSTATUS make_user_info_map(struct auth_usersupplied_info **user_info,
const char *smb_name,
const char *client_domain,
- const char *wksta_name,
+ const char *workstation_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 struct samr_Password *lm_interactive_pwd,
+ const struct samr_Password *nt_interactive_pwd,
+ const char *plaintext,
+ enum auth_password_state password_state)
{
const char *domain;
NTSTATUS result;
was_mapped = map_username(internal_username);
DEBUG(5, ("Mapping user [%s]\\[%s] from workstation [%s]\n",
- client_domain, smb_name, wksta_name));
+ client_domain, smb_name, workstation_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();
+ domain = client_domain;
/* If you connect to a Windows domain member using a bogus domain name,
* the Windows box will map the BOGUS\user to SAMNAME\user. Thus, if
* the Windows box is a DC the name will become DOMAIN\user and be
* authenticated against AD, if the Windows box is a member server but
* not a DC the name will become WORKSTATION\user. A standalone
- * non-domain member box will also map to WORKSTATION\user. */
+ * non-domain member box will also map to WORKSTATION\user.
+ * This also deals with the client passing in a "" domain */
if (!is_trusted_domain(domain) &&
- !strequal(domain, get_global_sam_name()) )
+ !strequal(domain, my_sam_name()))
{
if (lp_map_untrusted_to_domain())
domain = my_sam_name();
domain = get_global_sam_name();
DEBUG(5, ("Mapped domain from [%s] to [%s] for user [%s] from "
"workstation [%s]\n",
- client_domain, domain, smb_name, wksta_name));
+ client_domain, domain, smb_name, workstation_name));
}
/* We know that the given domain is trusted (and we are allowing them),
* primary domain name */
result = make_user_info(user_info, smb_name, internal_username,
- client_domain, domain, wksta_name,
+ client_domain, domain, workstation_name,
lm_pwd, nt_pwd,
lm_interactive_pwd, nt_interactive_pwd,
- plaintext, encrypted);
+ plaintext, password_state);
if (NT_STATUS_IS_OK(result)) {
+ /* We have tried mapping */
+ (*user_info)->mapped_state = True;
+ /* did we actually map the user to a different name? */
(*user_info)->was_mapped = was_mapped;
}
return result;
Decrypt and encrypt the passwords.
****************************************************************************/
-bool make_user_info_netlogon_network(auth_usersupplied_info **user_info,
+bool make_user_info_netlogon_network(struct auth_usersupplied_info **user_info,
const char *smb_name,
const char *client_domain,
- const char *wksta_name,
+ const char *workstation_name,
uint32 logon_parameters,
const uchar *lm_network_pwd,
int lm_pwd_len,
status = make_user_info_map(user_info,
smb_name, client_domain,
- wksta_name,
+ workstation_name,
lm_pwd_len ? &lm_blob : NULL,
nt_pwd_len ? &nt_blob : NULL,
NULL, NULL, NULL,
- True);
+ AUTH_PASSWORD_RESPONSE);
if (NT_STATUS_IS_OK(status)) {
(*user_info)->logon_parameters = logon_parameters;
Decrypt and encrypt the passwords.
****************************************************************************/
-bool make_user_info_netlogon_interactive(auth_usersupplied_info **user_info,
+bool make_user_info_netlogon_interactive(struct auth_usersupplied_info **user_info,
const char *smb_name,
const char *client_domain,
- const char *wksta_name,
+ const char *workstation_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)
{
- unsigned char lm_pwd[16];
- unsigned char nt_pwd[16];
+ struct samr_Password lm_pwd;
+ struct samr_Password nt_pwd;
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);
-
+
+ memcpy(key, dc_sess_key, 16);
+
if (lm_interactive_pwd)
- memcpy(lm_pwd, lm_interactive_pwd, sizeof(lm_pwd));
+ memcpy(lm_pwd.hash, lm_interactive_pwd, sizeof(lm_pwd.hash));
if (nt_interactive_pwd)
- memcpy(nt_pwd, nt_interactive_pwd, sizeof(nt_pwd));
-
+ memcpy(nt_pwd.hash, nt_interactive_pwd, sizeof(nt_pwd.hash));
+
#ifdef DEBUG_PASSWORD
DEBUG(100,("key:"));
dump_data(100, key, sizeof(key));
-
+
DEBUG(100,("lm owf password:"));
- dump_data(100, lm_pwd, sizeof(lm_pwd));
-
+ dump_data(100, lm_pwd.hash, sizeof(lm_pwd.hash));
+
DEBUG(100,("nt owf password:"));
- dump_data(100, nt_pwd, sizeof(nt_pwd));
+ dump_data(100, nt_pwd.hash, sizeof(nt_pwd.hash));
#endif
-
+
if (lm_interactive_pwd)
- SamOEMhash(lm_pwd, key, sizeof(lm_pwd));
-
+ arcfour_crypt(lm_pwd.hash, key, sizeof(lm_pwd.hash));
+
if (nt_interactive_pwd)
- SamOEMhash(nt_pwd, key, sizeof(nt_pwd));
-
+ arcfour_crypt(nt_pwd.hash, key, sizeof(nt_pwd.hash));
+
#ifdef DEBUG_PASSWORD
DEBUG(100,("decrypt of lm owf password:"));
- dump_data(100, lm_pwd, sizeof(lm_pwd));
-
+ dump_data(100, lm_pwd.hash, sizeof(lm_pwd));
+
DEBUG(100,("decrypt of nt owf password:"));
- dump_data(100, nt_pwd, sizeof(nt_pwd));
+ dump_data(100, nt_pwd.hash, sizeof(nt_pwd));
#endif
-
+
if (lm_interactive_pwd)
- SMBOWFencrypt(lm_pwd, chal,
+ SMBOWFencrypt(lm_pwd.hash, chal,
local_lm_response);
if (nt_interactive_pwd)
- SMBOWFencrypt(nt_pwd, chal,
+ SMBOWFencrypt(nt_pwd.hash, chal,
local_nt_response);
-
+
/* Password info paranoia */
ZERO_STRUCT(key);
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,
+ smb_name, client_domain, workstation_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);
+ lm_interactive_pwd ? &lm_pwd : NULL,
+ nt_interactive_pwd ? &nt_pwd : NULL,
+ NULL, AUTH_PASSWORD_HASH);
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,
+bool make_user_info_for_reply(struct auth_usersupplied_info **user_info,
const char *smb_name,
const char *client_domain,
const uint8 chal[8],
DATA_BLOB local_lm_blob;
DATA_BLOB local_nt_blob;
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
-
+ char *plaintext_password_string;
/*
* Not encrypted - do so.
*/
-
+
DEBUG(5,("make_user_info_for_reply: User passwords not in encrypted "
"format.\n"));
-
- if (plaintext_password.data) {
+ if (plaintext_password.data && plaintext_password.length) {
unsigned char local_lm_response[24];
-
+
#ifdef DEBUG_PASSWORD
DEBUG(10,("Unencrypted password (len %d):\n",
(int)plaintext_password.length));
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;
-
} else {
local_lm_blob = data_blob_null;
local_nt_blob = data_blob_null;
}
-
+
+ plaintext_password_string = talloc_strndup(talloc_tos(),
+ (const char *)plaintext_password.data,
+ plaintext_password.length);
+ if (!plaintext_password_string) {
+ return False;
+ }
+
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);
-
+ plaintext_password_string,
+ AUTH_PASSWORD_PLAIN);
+
+ if (plaintext_password_string) {
+ memset(plaintext_password_string, '\0', strlen(plaintext_password_string));
+ talloc_free(plaintext_password_string);
+ }
+
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,
+NTSTATUS make_user_info_for_reply_enc(struct 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,
+ lm_resp.data && (lm_resp.length > 0) ? &lm_resp : NULL,
+ nt_resp.data && (nt_resp.length > 0) ? &nt_resp : NULL,
NULL, NULL, NULL,
- True);
+ AUTH_PASSWORD_RESPONSE);
}
/****************************************************************************
Create a guest user_info blob, for anonymous authenticaion.
****************************************************************************/
-bool make_user_info_guest(auth_usersupplied_info **user_info)
+bool make_user_info_guest(struct auth_usersupplied_info **user_info)
{
NTSTATUS nt_status;
NULL, NULL,
NULL, NULL,
NULL,
- True);
-
- return NT_STATUS_IS_OK(nt_status) ? True : False;
-}
-
-static int server_info_dtor(auth_serversupplied_info *server_info)
-{
- TALLOC_FREE(server_info->sam_account);
- ZERO_STRUCTP(server_info);
- return 0;
-}
-
-/***************************************************************************
- Make a server_info struct. Free with TALLOC_FREE().
-***************************************************************************/
-
-static auth_serversupplied_info *make_server_info(TALLOC_CTX *mem_ctx)
-{
- struct auth_serversupplied_info *result;
-
- result = TALLOC_ZERO_P(mem_ctx, auth_serversupplied_info);
- if (result == NULL) {
- DEBUG(0, ("talloc failed\n"));
- return NULL;
- }
-
- talloc_set_destructor(result, server_info_dtor);
-
- /* 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. */
-
- result->utok.uid = -1;
- result->utok.gid = -1;
- return result;
-}
-
-static char *sanitize_username(TALLOC_CTX *mem_ctx, const char *username)
-{
- fstring tmp;
-
- alpha_strcpy(tmp, username, ". _-$", sizeof(tmp));
- return talloc_strdup(mem_ctx, tmp);
-}
-
-/***************************************************************************
- Is the incoming username our own machine account ?
- If so, the connection is almost certainly from winbindd.
-***************************************************************************/
-
-static bool is_our_machine_account(const char *username)
-{
- bool ret;
- char *truncname = NULL;
- size_t ulen = strlen(username);
-
- if (ulen == 0 || username[ulen-1] != '$') {
- return false;
- }
- truncname = SMB_STRDUP(username);
- if (!truncname) {
- return false;
- }
- truncname[ulen-1] = '\0';
- ret = strequal(truncname, global_myname());
- SAFE_FREE(truncname);
- return ret;
-}
-
-/***************************************************************************
- Make (and fill) a user_info struct from a struct samu
-***************************************************************************/
-
-NTSTATUS make_server_info_sam(auth_serversupplied_info **server_info,
- struct samu *sampass)
-{
- struct passwd *pwd;
- gid_t *gids;
- auth_serversupplied_info *result;
- const char *username = pdb_get_username(sampass);
- NTSTATUS status;
-
- if ( !(result = make_server_info(NULL)) ) {
- return NT_STATUS_NO_MEMORY;
- }
-
- if ( !(pwd = getpwnam_alloc(result, username)) ) {
- DEBUG(1, ("User %s in passdb, but getpwnam() fails!\n",
- pdb_get_username(sampass)));
- TALLOC_FREE(result);
- return NT_STATUS_NO_SUCH_USER;
- }
+ AUTH_PASSWORD_RESPONSE);
- result->sam_account = sampass;
- result->unix_name = pwd->pw_name;
- /* Ensure that we keep pwd->pw_name, because we will free pwd below */
- talloc_steal(result, pwd->pw_name);
- result->utok.gid = pwd->pw_gid;
- result->utok.uid = pwd->pw_uid;
-
- TALLOC_FREE(pwd);
-
- result->sanitized_username = sanitize_username(result,
- result->unix_name);
- if (result->sanitized_username == NULL) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (IS_DC && is_our_machine_account(username)) {
- /*
- * Ensure for a connection from our own
- * machine account (from winbindd on a DC)
- * there are no supplementary groups.
- * Prevents loops in calling gid_to_sid().
- */
- result->sids = NULL;
- gids = NULL;
- result->num_sids = 0;
-
- /*
- * This is a hack of monstrous proportions.
- * If we know it's winbindd talking to us,
- * we know we must never recurse into it,
- * so turn off contacting winbindd for this
- * entire process. This will get fixed when
- * winbindd doesn't need to talk to smbd on
- * a PDC. JRA.
- */
-
- (void)winbind_off();
-
- DEBUG(10, ("make_server_info_sam: our machine account %s "
- "setting supplementary group list empty and "
- "turning off winbindd requests.\n",
- username));
- } else {
- status = pdb_enum_group_memberships(result, sampass,
- &result->sids, &gids,
- &result->num_sids);
-
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(10, ("pdb_enum_group_memberships failed: %s\n",
- nt_errstr(status)));
- result->sam_account = NULL; /* Don't free on error exit. */
- TALLOC_FREE(result);
- return status;
- }
- }
-
- /* For now we throw away the gids and convert via sid_to_gid
- * later. This needs fixing, but I'd like to get the code straight and
- * simple first. */
-
- TALLOC_FREE(gids);
-
- DEBUG(5,("make_server_info_sam: made server info for user %s -> %s\n",
- pdb_get_username(sampass), result->unix_name));
-
- *server_info = result;
- /* Ensure that the sampass will be freed with the result */
- talloc_steal(result, sampass);
-
- return NT_STATUS_OK;
+ return NT_STATUS_IS_OK(nt_status) ? True : False;
}
static NTSTATUS log_nt_token(NT_USER_TOKEN *token)
for (i=1; i<token->num_sids; i++) {
group_sidstr = talloc_asprintf(
frame, "%s %s", group_sidstr,
- sid_string_talloc(frame, &token->user_sids[i]));
+ sid_string_talloc(frame, &token->sids[i]));
}
command = talloc_string_sub(
frame, lp_log_nt_token_command(),
- "%s", sid_string_talloc(frame, &token->user_sids[0]));
+ "%s", sid_string_talloc(frame, &token->sids[0]));
command = talloc_string_sub(frame, command, "%t", group_sidstr);
if (command == NULL) {
}
/*
- * Create the token to use from server_info->sam_account and
+ * Create the token to use from server_info->info3 and
* server_info->sids (the info3/sam groups). Find the unix gids.
*/
-NTSTATUS create_local_token(auth_serversupplied_info *server_info)
+NTSTATUS create_local_token(struct auth_serversupplied_info *server_info)
{
NTSTATUS status;
size_t i;
&server_info->ptok);
} else {
- server_info->ptok = create_local_nt_token(
- server_info,
- pdb_get_user_sid(server_info->sam_account),
- server_info->guest,
- server_info->num_sids, server_info->sids);
- status = server_info->ptok ?
- NT_STATUS_OK : NT_STATUS_NO_SUCH_USER;
+ status = create_local_nt_token_from_info3(server_info,
+ server_info->guest,
+ server_info->info3,
+ &server_info->extra,
+ &server_info->ptok);
}
if (!NT_STATUS_IS_OK(status)) {
for (i=1; i<server_info->ptok->num_sids; i++) {
gid_t gid;
- DOM_SID *sid = &server_info->ptok->user_sids[i];
+ struct dom_sid *sid = &server_info->ptok->sids[i];
if (!sid_to_gid(sid, &gid)) {
DEBUG(10, ("Could not convert SID %s to gid, "
* the nt token.
*/
- if (!uid_to_unix_users_sid(server_info->utok.uid, &tmp_sid)) {
- DEBUG(1,("create_local_token: Failed to create SID "
- "for uid %d!\n", server_info->utok.uid));
- }
+ uid_to_unix_users_sid(server_info->utok.uid, &tmp_sid);
+
add_sid_to_array_unique(server_info->ptok, &tmp_sid,
- &server_info->ptok->user_sids,
+ &server_info->ptok->sids,
&server_info->ptok->num_sids);
for ( i=0; i<server_info->utok.ngroups; i++ ) {
- if (!gid_to_unix_groups_sid( server_info->utok.groups[i], &tmp_sid ) ) {
- DEBUG(1,("create_local_token: Failed to create SID "
- "for gid %d!\n", server_info->utok.groups[i]));
- continue;
- }
+ gid_to_unix_groups_sid(server_info->utok.groups[i], &tmp_sid);
add_sid_to_array_unique(server_info->ptok, &tmp_sid,
- &server_info->ptok->user_sids,
+ &server_info->ptok->sids,
&server_info->ptok->num_sids);
}
return status;
}
-/*
- * Create an artificial NT token given just a username. (Initially intended
- * for force user)
- *
- * We go through lookup_name() to avoid problems we had with 'winbind use
- * default domain'.
- *
- * We have 3 cases:
- *
- * unmapped unix users: Go directly to nss to find the user's group.
- *
- * A passdb user: The list of groups is provided by pdb_enum_group_memberships.
- *
- * If the user is provided by winbind, the primary gid is set to "domain
- * users" of the user's domain. For an explanation why this is necessary, see
- * the thread starting at
- * http://lists.samba.org/archive/samba-technical/2006-January/044803.html.
- */
+/***************************************************************************
+ Make (and fill) a server_info struct from a 'struct passwd' by conversion
+ to a struct samu
+***************************************************************************/
-NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
- bool is_guest,
- uid_t *uid, gid_t *gid,
- char **found_username,
- struct nt_user_token **token)
+NTSTATUS make_server_info_pw(struct auth_serversupplied_info **server_info,
+ char *unix_username,
+ struct passwd *pwd)
{
- NTSTATUS result = NT_STATUS_NO_SUCH_USER;
- TALLOC_CTX *tmp_ctx;
- DOM_SID user_sid;
+ NTSTATUS status;
+ struct samu *sampass = NULL;
+ char *qualified_name = NULL;
+ TALLOC_CTX *mem_ctx = NULL;
+ struct dom_sid u_sid;
enum lsa_SidType type;
- gid_t *gids;
- DOM_SID *group_sids;
- DOM_SID unix_group_sid;
- size_t num_group_sids;
- size_t num_gids;
- size_t i;
+ struct auth_serversupplied_info *result;
- tmp_ctx = talloc_new(NULL);
- if (tmp_ctx == NULL) {
- DEBUG(0, ("talloc_new failed\n"));
+ /*
+ * The SID returned in server_info->sam_account is based
+ * on our SAM sid even though for a pure UNIX account this should
+ * not be the case as it doesn't really exist in the SAM db.
+ * This causes lookups on "[in]valid users" to fail as they
+ * will lookup this name as a "Unix User" SID to check against
+ * the user token. Fix this by adding the "Unix User"\unix_username
+ * SID to the sid array. The correct fix should probably be
+ * changing the server_info->sam_account user SID to be a
+ * S-1-22 Unix SID, but this might break old configs where
+ * plaintext passwords were used with no SAM backend.
+ */
+
+ mem_ctx = talloc_init("make_server_info_pw_tmp");
+ if (!mem_ctx) {
return NT_STATUS_NO_MEMORY;
}
- if (!lookup_name_smbconf(tmp_ctx, username, LOOKUP_NAME_ALL,
- NULL, NULL, &user_sid, &type)) {
- DEBUG(1, ("lookup_name_smbconf for %s failed\n", username));
- goto done;
+ qualified_name = talloc_asprintf(mem_ctx, "%s\\%s",
+ unix_users_domain_name(),
+ unix_username );
+ if (!qualified_name) {
+ TALLOC_FREE(mem_ctx);
+ return NT_STATUS_NO_MEMORY;
}
- if (type != SID_NAME_USER) {
- DEBUG(1, ("%s is a %s, not a user\n", username,
- sid_type_lookup(type)));
- goto done;
+ if (!lookup_name(mem_ctx, qualified_name, LOOKUP_NAME_ALL,
+ NULL, NULL,
+ &u_sid, &type)) {
+ TALLOC_FREE(mem_ctx);
+ return NT_STATUS_NO_SUCH_USER;
}
- if (sid_check_is_in_our_domain(&user_sid)) {
- bool ret;
+ TALLOC_FREE(mem_ctx);
- /* This is a passdb user, so ask passdb */
+ if (type != SID_NAME_USER) {
+ return NT_STATUS_NO_SUCH_USER;
+ }
- struct samu *sam_acct = NULL;
+ if ( !(sampass = samu_new( NULL )) ) {
+ return NT_STATUS_NO_MEMORY;
+ }
- if ( !(sam_acct = samu_new( tmp_ctx )) ) {
- result = NT_STATUS_NO_MEMORY;
- goto done;
- }
+ status = samu_set_unix( sampass, pwd );
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
- become_root();
- ret = pdb_getsampwsid(sam_acct, &user_sid);
- unbecome_root();
+ /* In pathological cases the above call can set the account
+ * name to the DOMAIN\username form. Reset the account name
+ * using unix_username */
+ pdb_set_username(sampass, unix_username, PDB_SET);
- if (!ret) {
- DEBUG(1, ("pdb_getsampwsid(%s) for user %s failed\n",
- sid_string_dbg(&user_sid), username));
- DEBUGADD(1, ("Fall back to unix user %s\n", username));
- goto unix_user;
- }
+ /* set the user sid to be the calculated u_sid */
+ pdb_set_user_sid(sampass, &u_sid, PDB_SET);
- result = pdb_enum_group_memberships(tmp_ctx, sam_acct,
- &group_sids, &gids,
- &num_group_sids);
- if (!NT_STATUS_IS_OK(result)) {
- DEBUG(10, ("enum_group_memberships failed for %s\n",
- username));
- DEBUGADD(1, ("Fall back to unix user %s\n", username));
- goto unix_user;
- }
+ result = make_server_info(NULL);
+ if (result == NULL) {
+ TALLOC_FREE(sampass);
+ return NT_STATUS_NO_MEMORY;
+ }
- /* see the smb_panic() in pdb_default_enum_group_memberships */
- SMB_ASSERT(num_group_sids > 0);
+ status = samu_to_SamInfo3(result, sampass, global_myname(),
+ &result->info3, &result->extra);
+ TALLOC_FREE(sampass);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("Failed to convert samu to info3: %s\n",
+ nt_errstr(status)));
+ TALLOC_FREE(result);
+ return status;
+ }
- *gid = gids[0];
+ result->unix_name = talloc_strdup(result, unix_username);
+ result->sanitized_username = sanitize_username(result, unix_username);
- /* Ensure we're returning the found_username on the right context. */
- *found_username = talloc_strdup(mem_ctx,
- pdb_get_username(sam_acct));
+ if ((result->unix_name == NULL)
+ || (result->sanitized_username == NULL)) {
+ TALLOC_FREE(result);
+ return NT_STATUS_NO_MEMORY;
+ }
- } else if (sid_check_is_in_unix_users(&user_sid)) {
+ result->utok.uid = pwd->pw_uid;
+ result->utok.gid = pwd->pw_gid;
- /* This is a unix user not in passdb. We need to ask nss
- * directly, without consulting passdb */
+ *server_info = result;
- struct passwd *pass;
+ return NT_STATUS_OK;
+}
- /*
- * This goto target is used as a fallback for the passdb
- * case. The concrete bug report is when passdb gave us an
- * unmapped gid.
- */
+static NTSTATUS get_guest_info3(TALLOC_CTX *mem_ctx,
+ struct netr_SamInfo3 *info3)
+{
+ const char *guest_account = lp_guestaccount();
+ struct dom_sid domain_sid;
+ struct passwd *pwd;
+ const char *tmp;
+ NTSTATUS status;
- unix_user:
+ pwd = getpwnam_alloc(mem_ctx, guest_account);
+ if (pwd == NULL) {
+ DEBUG(0,("SamInfo3_for_guest: Unable to locate guest "
+ "account [%s]!\n", guest_account));
+ return NT_STATUS_NO_SUCH_USER;
+ }
- if (!sid_to_uid(&user_sid, uid)) {
- DEBUG(1, ("sid_to_uid for %s (%s) failed\n",
- username, sid_string_dbg(&user_sid)));
- goto done;
- }
+ /* Set acount name */
+ tmp = talloc_strdup(mem_ctx, pwd->pw_name);
+ if (tmp == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ init_lsa_String(&info3->base.account_name, tmp);
- uid_to_unix_users_sid(*uid, &user_sid);
+ /* Set domain name */
+ tmp = talloc_strdup(mem_ctx, get_global_sam_name());
+ if (tmp == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ init_lsa_StringLarge(&info3->base.domain, tmp);
- pass = getpwuid_alloc(tmp_ctx, *uid);
- if (pass == NULL) {
- DEBUG(1, ("getpwuid(%d) for user %s failed\n",
- *uid, username));
- goto done;
- }
-
- if (!getgroups_unix_user(tmp_ctx, username, pass->pw_gid,
- &gids, &num_group_sids)) {
- DEBUG(1, ("getgroups_unix_user for user %s failed\n",
- username));
- goto done;
- }
-
- if (num_group_sids) {
- group_sids = TALLOC_ARRAY(tmp_ctx, DOM_SID, num_group_sids);
- if (group_sids == NULL) {
- DEBUG(1, ("TALLOC_ARRAY failed\n"));
- result = NT_STATUS_NO_MEMORY;
- goto done;
- }
- } else {
- group_sids = NULL;
- }
-
- for (i=0; i<num_group_sids; i++) {
- gid_to_sid(&group_sids[i], gids[i]);
- }
-
- /* In getgroups_unix_user we always set the primary gid */
- SMB_ASSERT(num_group_sids > 0);
-
- *gid = gids[0];
-
- /* Ensure we're returning the found_username on the right context. */
- *found_username = talloc_strdup(mem_ctx, pass->pw_name);
- } else {
-
- /* This user is from winbind, force the primary gid to the
- * user's "domain users" group. Under certain circumstances
- * (user comes from NT4), this might be a loss of
- * information. But we can not rely on winbind getting the
- * correct info. AD might prohibit winbind looking up that
- * information. */
-
- uint32 dummy;
-
- num_group_sids = 1;
- group_sids = TALLOC_ARRAY(tmp_ctx, DOM_SID, num_group_sids);
- if (group_sids == NULL) {
- DEBUG(1, ("TALLOC_ARRAY failed\n"));
- result = NT_STATUS_NO_MEMORY;
- goto done;
- }
-
- sid_copy(&group_sids[0], &user_sid);
- sid_split_rid(&group_sids[0], &dummy);
- sid_append_rid(&group_sids[0], DOMAIN_GROUP_RID_USERS);
+ /* Domain sid */
+ sid_copy(&domain_sid, get_global_sam_sid());
- if (!sid_to_gid(&group_sids[0], gid)) {
- DEBUG(1, ("sid_to_gid(%s) failed\n",
- sid_string_dbg(&group_sids[0])));
- goto done;
- }
-
- gids = gid;
-
- /* Ensure we're returning the found_username on the right context. */
- *found_username = talloc_strdup(mem_ctx, username);
- }
-
- /* Add the "Unix Group" SID for each gid to catch mapped groups
- and their Unix equivalent. This is to solve the backwards
- compatibility problem of 'valid users = +ntadmin' where
- ntadmin has been paired with "Domain Admins" in the group
- mapping table. Otherwise smb.conf would need to be changed
- to 'valid user = "Domain Admins"'. --jerry */
-
- num_gids = num_group_sids;
- for ( i=0; i<num_gids; i++ ) {
- gid_t high, low;
-
- /* don't pickup anything managed by Winbind */
-
- if ( lp_idmap_gid(&low, &high) && (gids[i] >= low) && (gids[i] <= high) )
- continue;
-
- if ( !gid_to_unix_groups_sid( gids[i], &unix_group_sid ) ) {
- DEBUG(1,("create_token_from_username: Failed to create SID "
- "for gid %d!\n", gids[i]));
- continue;
- }
- result = add_sid_to_array_unique(tmp_ctx, &unix_group_sid,
- &group_sids, &num_group_sids);
- if (!NT_STATUS_IS_OK(result)) {
- goto done;
- }
+ info3->base.domain_sid = sid_dup_talloc(mem_ctx, &domain_sid);
+ if (info3->base.domain_sid == NULL) {
+ return NT_STATUS_NO_MEMORY;
}
- /* Ensure we're creating the nt_token on the right context. */
- *token = create_local_nt_token(mem_ctx, &user_sid,
- is_guest, num_group_sids, group_sids);
+ /* Guest rid */
+ info3->base.rid = DOMAIN_RID_GUEST;
- if ((*token == NULL) || (*found_username == NULL)) {
- result = NT_STATUS_NO_MEMORY;
- goto done;
- }
+ /* Primary gid */
+ info3->base.primary_gid = BUILTIN_RID_GUESTS;
- result = NT_STATUS_OK;
- done:
- TALLOC_FREE(tmp_ctx);
- return result;
+ TALLOC_FREE(pwd);
+ return status;
}
/***************************************************************************
- Build upon create_token_from_username:
-
- Expensive helper function to figure out whether a user given its name is
- member of a particular group.
+ Make (and fill) a user_info struct for a guest login.
+ This *must* succeed for smbd to start. If there is no mapping entry for
+ the guest gid, then create one.
***************************************************************************/
-bool user_in_group_sid(const char *username, const DOM_SID *group_sid)
+static NTSTATUS make_new_server_info_guest(struct auth_serversupplied_info **server_info)
{
+ static const char zeros[16] = {0};
+ const char *guest_account = lp_guestaccount();
+ const char *domain = global_myname();
+ struct netr_SamInfo3 info3;
+ TALLOC_CTX *tmp_ctx;
NTSTATUS status;
- uid_t uid;
- gid_t gid;
- char *found_username;
- struct nt_user_token *token;
- bool result;
-
- TALLOC_CTX *mem_ctx;
+ fstring tmp;
- mem_ctx = talloc_new(NULL);
- if (mem_ctx == NULL) {
- DEBUG(0, ("talloc_new failed\n"));
- return False;
+ tmp_ctx = talloc_stackframe();
+ if (tmp_ctx == NULL) {
+ return NT_STATUS_NO_MEMORY;
}
- status = create_token_from_username(mem_ctx, username, False,
- &uid, &gid, &found_username,
- &token);
+ ZERO_STRUCT(info3);
+ status = get_guest_info3(tmp_ctx, &info3);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(10, ("could not create token for %s\n", username));
- return False;
- }
-
- result = nt_token_check_sid(group_sid, token);
-
- TALLOC_FREE(mem_ctx);
- return result;
-
-}
-
-bool user_in_group(const char *username, const char *groupname)
-{
- TALLOC_CTX *mem_ctx;
- DOM_SID group_sid;
- bool ret;
-
- mem_ctx = talloc_new(NULL);
- if (mem_ctx == NULL) {
- DEBUG(0, ("talloc_new failed\n"));
- return False;
- }
-
- ret = lookup_name(mem_ctx, groupname, LOOKUP_NAME_ALL,
- NULL, NULL, &group_sid, NULL);
- TALLOC_FREE(mem_ctx);
-
- if (!ret) {
- DEBUG(10, ("lookup_name for (%s) failed.\n", groupname));
- return False;
+ goto done;
}
- return user_in_group_sid(username, &group_sid);
-}
-
-/***************************************************************************
- Make (and fill) a server_info struct from a 'struct passwd' by conversion
- to a struct samu
-***************************************************************************/
-
-NTSTATUS make_server_info_pw(auth_serversupplied_info **server_info,
- char *unix_username,
- struct passwd *pwd)
-{
- NTSTATUS status;
- struct samu *sampass = NULL;
- gid_t *gids;
- char *qualified_name = NULL;
- TALLOC_CTX *mem_ctx = NULL;
- DOM_SID u_sid;
- enum lsa_SidType type;
- auth_serversupplied_info *result;
-
- if ( !(sampass = samu_new( NULL )) ) {
- return NT_STATUS_NO_MEMORY;
- }
-
- status = samu_set_unix( sampass, pwd );
+ status = make_server_info_info3(tmp_ctx,
+ guest_account,
+ domain,
+ server_info,
+ &info3);
if (!NT_STATUS_IS_OK(status)) {
- return status;
- }
-
- result = make_server_info(NULL);
- if (result == NULL) {
- TALLOC_FREE(sampass);
- return NT_STATUS_NO_MEMORY;
- }
-
- result->sam_account = sampass;
-
- result->unix_name = talloc_strdup(result, unix_username);
- result->sanitized_username = sanitize_username(result, unix_username);
-
- if ((result->unix_name == NULL)
- || (result->sanitized_username == NULL)) {
- TALLOC_FREE(sampass);
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
+ goto done;
}
- result->utok.uid = pwd->pw_uid;
- result->utok.gid = pwd->pw_gid;
-
- status = pdb_enum_group_memberships(result, sampass,
- &result->sids, &gids,
- &result->num_sids);
+ (*server_info)->guest = True;
+ status = create_local_token(*server_info);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(10, ("pdb_enum_group_memberships failed: %s\n",
+ DEBUG(10, ("create_local_token failed: %s\n",
nt_errstr(status)));
- TALLOC_FREE(result);
- return status;
- }
-
- /*
- * The SID returned in server_info->sam_account is based
- * on our SAM sid even though for a pure UNIX account this should
- * not be the case as it doesn't really exist in the SAM db.
- * This causes lookups on "[in]valid users" to fail as they
- * will lookup this name as a "Unix User" SID to check against
- * the user token. Fix this by adding the "Unix User"\unix_username
- * SID to the sid array. The correct fix should probably be
- * changing the server_info->sam_account user SID to be a
- * S-1-22 Unix SID, but this might break old configs where
- * plaintext passwords were used with no SAM backend.
- */
-
- mem_ctx = talloc_init("make_server_info_pw_tmp");
- if (!mem_ctx) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- qualified_name = talloc_asprintf(mem_ctx, "%s\\%s",
- unix_users_domain_name(),
- unix_username );
- if (!qualified_name) {
- TALLOC_FREE(result);
- TALLOC_FREE(mem_ctx);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!lookup_name(mem_ctx, qualified_name, LOOKUP_NAME_ALL,
- NULL, NULL,
- &u_sid, &type)) {
- TALLOC_FREE(result);
- TALLOC_FREE(mem_ctx);
- return NT_STATUS_NO_SUCH_USER;
- }
-
- TALLOC_FREE(mem_ctx);
-
- if (type != SID_NAME_USER) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_SUCH_USER;
- }
-
- status = add_sid_to_array_unique(result, &u_sid,
- &result->sids,
- &result->num_sids);
- if (!NT_STATUS_IS_OK(status)) {
- TALLOC_FREE(result);
- return status;
+ goto done;
}
- /* For now we throw away the gids and convert via sid_to_gid
- * later. This needs fixing, but I'd like to get the code straight and
- * simple first. */
- TALLOC_FREE(gids);
+ /* 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));
- *server_info = result;
+ alpha_strcpy(tmp, (*server_info)->info3->base.account_name.string,
+ ". _-$", sizeof(tmp));
+ (*server_info)->sanitized_username = talloc_strdup(*server_info, tmp);
+ status = NT_STATUS_OK;
+done:
+ TALLOC_FREE(tmp_ctx);
return NT_STATUS_OK;
}
/***************************************************************************
- Make (and fill) a user_info struct for a guest login.
- This *must* succeed for smbd to start. If there is no mapping entry for
- the guest gid, then create one.
+ Make (and fill) a user_info struct for a system user login.
+ This *must* succeed for smbd to start.
***************************************************************************/
-static NTSTATUS make_new_server_info_guest(auth_serversupplied_info **server_info)
+static NTSTATUS make_new_server_info_system(TALLOC_CTX *mem_ctx,
+ struct auth_serversupplied_info **server_info)
{
+ struct passwd *pwd;
NTSTATUS status;
- struct samu *sampass = NULL;
- DOM_SID guest_sid;
- bool ret;
- char zeros[16];
- fstring tmp;
- if ( !(sampass = samu_new( NULL )) ) {
+ pwd = getpwuid_alloc(mem_ctx, sec_initial_uid());
+ if (pwd == NULL) {
return NT_STATUS_NO_MEMORY;
}
- sid_copy(&guest_sid, get_global_sam_sid());
- sid_append_rid(&guest_sid, DOMAIN_USER_RID_GUEST);
-
- become_root();
- ret = pdb_getsampwsid(sampass, &guest_sid);
- unbecome_root();
-
- if (!ret) {
- TALLOC_FREE(sampass);
- return NT_STATUS_NO_SUCH_USER;
- }
-
- status = make_server_info_sam(server_info, sampass);
+ status = make_serverinfo_from_username(mem_ctx,
+ pwd->pw_name,
+ false,
+ server_info);
if (!NT_STATUS_IS_OK(status)) {
- TALLOC_FREE(sampass);
return status;
}
-
- (*server_info)->guest = True;
-
- status = create_local_token(*server_info);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(10, ("create_local_token failed: %s\n",
- nt_errstr(status)));
- return status;
- }
-
- /* annoying, but the Guest really does have a session key, and it is
- all zeros! */
- ZERO_STRUCT(zeros);
- (*server_info)->user_session_key = data_blob(zeros, sizeof(zeros));
- (*server_info)->lm_session_key = data_blob(zeros, sizeof(zeros));
- alpha_strcpy(tmp, pdb_get_username(sampass), ". _-$", sizeof(tmp));
- (*server_info)->sanitized_username = talloc_strdup(*server_info, tmp);
+ (*server_info)->system = true;
return NT_STATUS_OK;
}
struct auth_serversupplied_info *copy_serverinfo(TALLOC_CTX *mem_ctx,
- const auth_serversupplied_info *src)
+ const struct auth_serversupplied_info *src)
{
- auth_serversupplied_info *dst;
+ struct auth_serversupplied_info *dst;
dst = make_server_info(mem_ctx);
if (dst == NULL) {
}
dst->guest = src->guest;
+ dst->system = src->system;
dst->utok.uid = src->utok.uid;
dst->utok.gid = src->utok.gid;
dst->utok.ngroups = src->utok.ngroups;
return NULL;
}
}
-
+
dst->user_session_key = data_blob_talloc( dst, src->user_session_key.data,
src->user_session_key.length);
dst->lm_session_key = data_blob_talloc(dst, src->lm_session_key.data,
src->lm_session_key.length);
- dst->sam_account = samu_new(NULL);
- if (!dst->sam_account) {
+ dst->info3 = copy_netr_SamInfo3(dst, src->info3);
+ if (!dst->info3) {
TALLOC_FREE(dst);
return NULL;
}
+ dst->extra = src->extra;
- if (!pdb_copy_sam_account(dst->sam_account, src->sam_account)) {
- TALLOC_FREE(dst);
- return NULL;
- }
-
dst->pam_handle = NULL;
dst->unix_name = talloc_strdup(dst, src->unix_name);
if (!dst->unix_name) {
return (info->user_session_key.data != NULL);
}
-static auth_serversupplied_info *guest_info = NULL;
+static struct auth_serversupplied_info *guest_info = NULL;
bool init_guest_info(void)
{
}
NTSTATUS make_server_info_guest(TALLOC_CTX *mem_ctx,
- auth_serversupplied_info **server_info)
+ struct auth_serversupplied_info **server_info)
{
*server_info = copy_serverinfo(mem_ctx, guest_info);
return (*server_info != NULL) ? NT_STATUS_OK : NT_STATUS_NO_MEMORY;
}
+static struct auth_serversupplied_info *system_info = NULL;
+
+bool init_system_info(void)
+{
+ if (system_info != NULL)
+ return True;
+
+ return NT_STATUS_IS_OK(make_new_server_info_system(talloc_autofree_context(), &system_info));
+}
+
+NTSTATUS make_server_info_system(TALLOC_CTX *mem_ctx,
+ struct auth_serversupplied_info **server_info)
+{
+ if (system_info == NULL) return NT_STATUS_UNSUCCESSFUL;
+ *server_info = copy_serverinfo(mem_ctx, system_info);
+ return (*server_info != NULL) ? NT_STATUS_OK : NT_STATUS_NO_MEMORY;
+}
+
bool copy_current_user(struct current_user *dst, struct current_user *src)
{
gid_t *groups;
/***************************************************************************
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,
- struct samu *account,
- bool *username_was_mapped)
+
+static NTSTATUS check_account(TALLOC_CTX *mem_ctx, const char *domain,
+ const char *username, char **found_username,
+ struct passwd **pwd,
+ bool *username_was_mapped)
{
- NTSTATUS nt_status;
fstring dom_user, lower_username;
fstring real_username;
struct passwd *passwd;
fstr_sprintf(dom_user, "%s%c%s", domain, *lp_winbind_separator(),
lower_username);
- /* Get the passwd struct. Try to create the account is necessary. */
+ /* Get the passwd struct. Try to create the account if necessary. */
- *username_was_mapped = map_username( dom_user );
+ *username_was_mapped = map_username(dom_user);
- if ( !(passwd = smb_getpwnam( NULL, dom_user, real_username, True )) )
+ passwd = smb_getpwnam( NULL, dom_user, real_username, True );
+ if (!passwd) {
+ DEBUG(3, ("Failed to find authenticated user %s via "
+ "getpwnam(), denying access.\n", dom_user));
return NT_STATUS_NO_SUCH_USER;
+ }
- *uid = passwd->pw_uid;
- *gid = passwd->pw_gid;
+ *pwd = passwd;
/* 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 = samu_set_unix( account, passwd );
-
- TALLOC_FREE(passwd);
-
- return nt_status;
+
+ return NT_STATUS_OK;
}
/****************************************************************************
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( TALLOC_CTX *mem_ctx, char *domuser,
+
+struct passwd *smb_getpwnam( TALLOC_CTX *mem_ctx, const 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 */
+ up the stack so we don't call it multiple times */
fstrcpy( username, domuser );
-
+
p = strchr_m( username, *lp_winbind_separator() );
-
+
/* code for a DOMAIN\user string */
-
+
if ( p ) {
fstring strip_username;
if ( !strchr_m( pw->pw_name, *lp_winbind_separator() ) ) {
char *domain;
-
+
/* split the domain and username into 2 strings */
*p = '\0';
domain = username;
fstrcpy( strip_username, p );
fstrcpy( username, strip_username );
}
-
+
/* just lookup a plain username */
-
+
pw = Get_Pwnam_alloc(mem_ctx, username);
-
+
/* Create local user if requested but only if winbindd
is not running. We need to protect against cases
where winbindd is failing and then prematurely
creating users in /etc/passwd */
-
+
if ( !pw && create && !winbind_ping() ) {
/* Don't add a machine account. */
if (username[strlen(username)-1] == '$')
return NULL;
- smb_create_user(NULL, username, NULL);
+ _smb_create_user(NULL, username, NULL);
pw = Get_Pwnam_alloc(mem_ctx, username);
}
-
+
/* one last check for a valid passwd struct */
-
+
if ( pw )
fstrcpy( save_username, pw->pw_name );
NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
const char *sent_nt_username,
const char *domain,
- auth_serversupplied_info **server_info,
+ struct auth_serversupplied_info **server_info,
struct netr_SamInfo3 *info3)
{
- char zeros[16];
+ static const char zeros[16] = {0, };
NTSTATUS nt_status = NT_STATUS_OK;
char *found_username = NULL;
const char *nt_domain;
const char *nt_username;
- struct samu *sam_account = NULL;
- DOM_SID user_sid;
- DOM_SID group_sid;
bool username_was_mapped;
-
- uid_t uid = (uid_t)-1;
- gid_t gid = (gid_t)-1;
-
- auth_serversupplied_info *result;
+ struct passwd *pwd;
+ struct auth_serversupplied_info *result;
+ struct dom_sid *group_sid;
+ struct netr_SamInfo3 *i3;
/*
Here is where we should check the list of
matches.
*/
- sid_copy(&user_sid, info3->base.domain_sid);
- if (!sid_append_rid(&user_sid, info3->base.rid)) {
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- sid_copy(&group_sid, info3->base.domain_sid);
- if (!sid_append_rid(&group_sid, info3->base.primary_gid)) {
- return NT_STATUS_INVALID_PARAMETER;
- }
-
nt_username = talloc_strdup(mem_ctx, info3->base.account_name.string);
if (!nt_username) {
/* 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).
+
+ /* If getpwnam() fails 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]
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 */
-
- if ( !(sam_account = samu_new( NULL )) ) {
- return NT_STATUS_NO_MEMORY;
- }
/* this call will try to create the user if necessary */
- nt_status = fill_sam_account(mem_ctx, nt_domain, sent_nt_username,
- &found_username, &uid, &gid, sam_account,
+ nt_status = check_account(mem_ctx, nt_domain, sent_nt_username,
+ &found_username, &pwd,
&username_was_mapped);
-
- /* if we still don't have a valid unix account check for
- 'map to guest = bad uid' */
-
if (!NT_STATUS_IS_OK(nt_status)) {
- TALLOC_FREE( sam_account );
- if ( lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_UID ) {
- make_server_info_guest(NULL, server_info);
- return NT_STATUS_OK;
- }
return nt_status;
}
-
- if (!pdb_set_nt_username(sam_account, nt_username, PDB_CHANGED)) {
- TALLOC_FREE(sam_account);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_username(sam_account, nt_username, PDB_CHANGED)) {
- TALLOC_FREE(sam_account);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_domain(sam_account, nt_domain, PDB_CHANGED)) {
- TALLOC_FREE(sam_account);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_user_sid(sam_account, &user_sid, PDB_CHANGED)) {
- TALLOC_FREE(sam_account);
- return NT_STATUS_UNSUCCESSFUL;
- }
-
- if (!pdb_set_group_sid(sam_account, &group_sid, PDB_CHANGED)) {
- TALLOC_FREE(sam_account);
- return NT_STATUS_UNSUCCESSFUL;
- }
-
- if (!pdb_set_fullname(sam_account,
- info3->base.full_name.string,
- PDB_CHANGED)) {
- TALLOC_FREE(sam_account);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_logon_script(sam_account,
- info3->base.logon_script.string,
- PDB_CHANGED)) {
- TALLOC_FREE(sam_account);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_profile_path(sam_account,
- info3->base.profile_path.string,
- PDB_CHANGED)) {
- TALLOC_FREE(sam_account);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_homedir(sam_account,
- info3->base.home_directory.string,
- PDB_CHANGED)) {
- TALLOC_FREE(sam_account);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_dir_drive(sam_account,
- info3->base.home_drive.string,
- PDB_CHANGED)) {
- TALLOC_FREE(sam_account);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_acct_ctrl(sam_account, info3->base.acct_flags, PDB_CHANGED)) {
- TALLOC_FREE(sam_account);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_pass_last_set_time(
- sam_account,
- nt_time_to_unix(info3->base.last_password_change),
- PDB_CHANGED)) {
- TALLOC_FREE(sam_account);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_pass_can_change_time(
- sam_account,
- nt_time_to_unix(info3->base.allow_password_change),
- PDB_CHANGED)) {
- TALLOC_FREE(sam_account);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_pass_must_change_time(
- sam_account,
- nt_time_to_unix(info3->base.force_password_change),
- PDB_CHANGED)) {
- TALLOC_FREE(sam_account);
- return NT_STATUS_NO_MEMORY;
- }
result = make_server_info(NULL);
if (result == NULL) {
DEBUG(4, ("make_server_info failed!\n"));
- TALLOC_FREE(sam_account);
return NT_STATUS_NO_MEMORY;
}
- /* save this here to _net_sam_logon() doesn't fail (it assumes a
- valid struct samu) */
-
- result->sam_account = sam_account;
result->unix_name = talloc_strdup(result, found_username);
result->sanitized_username = sanitize_username(result,
return NT_STATUS_NO_MEMORY;
}
- /* Fill in the unix info we found on the way */
-
- result->utok.uid = uid;
- result->utok.gid = gid;
-
- /* Create a 'combined' list of all SIDs we might want in the SD */
+ /* copy in the info3 */
+ result->info3 = i3 = copy_netr_SamInfo3(result, info3);
+ if (result->info3 == NULL) {
+ TALLOC_FREE(result);
+ return NT_STATUS_NO_MEMORY;
+ }
- result->num_sids = 0;
- result->sids = NULL;
+ /* Fill in the unix info we found on the way */
+ result->utok.uid = pwd->pw_uid;
+ result->utok.gid = pwd->pw_gid;
- nt_status = sid_array_from_info3(result, info3,
- &result->sids,
- &result->num_sids,
- false, false);
+ /* We can't just trust that the primary group sid sent us is something
+ * we can really use. Obtain the useable sid, and store the original
+ * one as an additional group if it had to be replaced */
+ nt_status = get_primary_group_sid(mem_ctx, found_username,
+ &pwd, &group_sid);
if (!NT_STATUS_IS_OK(nt_status)) {
TALLOC_FREE(result);
return nt_status;
}
- /* Ensure the primary group sid is at position 0. */
- sort_sid_array_for_smbd(result, &group_sid);
-
- result->login_server = talloc_strdup(result,
- info3->base.logon_server.string);
+ /* store and check if it is the same we got originally */
+ sid_peek_rid(group_sid, &i3->base.primary_gid);
+ if (i3->base.primary_gid != info3->base.primary_gid) {
+ uint32_t n = i3->base.groups.count;
+ /* not the same, store the original as an additional group */
+ i3->base.groups.rids =
+ talloc_realloc(i3, i3->base.groups.rids,
+ struct samr_RidWithAttribute, n + 1);
+ if (i3->base.groups.rids == NULL) {
+ TALLOC_FREE(result);
+ return NT_STATUS_NO_MEMORY;
+ }
+ i3->base.groups.rids[n].rid = info3->base.primary_gid;
+ i3->base.groups.rids[n].attributes = SE_GROUP_ENABLED;
+ i3->base.groups.count = n + 1;
+ }
/* ensure we are never given NULL session keys */
- ZERO_STRUCT(zeros);
-
if (memcmp(info3->base.key.key, zeros, sizeof(zeros)) == 0) {
result->user_session_key = data_blob_null;
} else {
const char *sent_nt_username,
const char *domain,
const struct wbcAuthUserInfo *info,
- auth_serversupplied_info **server_info)
+ struct auth_serversupplied_info **server_info)
{
- char zeros[16];
-
- NTSTATUS nt_status = NT_STATUS_OK;
- char *found_username = NULL;
- const char *nt_domain;
- const char *nt_username;
- struct samu *sam_account = NULL;
- DOM_SID user_sid;
- DOM_SID group_sid;
- bool username_was_mapped;
- uint32_t i;
-
- uid_t uid = (uid_t)-1;
- gid_t gid = (gid_t)-1;
-
- auth_serversupplied_info *result;
-
- result = make_server_info(NULL);
- if (result == NULL) {
- DEBUG(4, ("make_server_info failed!\n"));
- return NT_STATUS_NO_MEMORY;
- }
-
- /*
- Here is where we should check the list of
- trusted domains, and verify that the SID
- matches.
- */
-
- memcpy(&user_sid, &info->sids[0].sid, sizeof(user_sid));
- memcpy(&group_sid, &info->sids[1].sid, sizeof(group_sid));
-
- if (info->account_name) {
- nt_username = talloc_strdup(result, info->account_name);
- } else {
- /* If the server didn't give us one, just use the one we sent
- * them */
- nt_username = talloc_strdup(result, sent_nt_username);
- }
- if (!nt_username) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (info->domain_name) {
- nt_domain = talloc_strdup(result, info->domain_name);
- } else {
- /* If the server didn't give us one, just use the one we sent
- * them */
- nt_domain = talloc_strdup(result, domain);
- }
- if (!nt_domain) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- /* 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 not just the login name. Yes this means we
- 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 */
-
- if ( !(sam_account = samu_new( result )) ) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- /* this call will try to create the user if necessary */
-
- nt_status = fill_sam_account(result, nt_domain, sent_nt_username,
- &found_username, &uid, &gid, sam_account,
- &username_was_mapped);
-
- /* if we still don't have a valid unix account check for
- 'map to guest = bad uid' */
-
- if (!NT_STATUS_IS_OK(nt_status)) {
- TALLOC_FREE( result );
- if ( lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_UID ) {
- make_server_info_guest(NULL, server_info);
- return NT_STATUS_OK;
- }
- return nt_status;
- }
+ struct netr_SamInfo3 *info3;
- if (!pdb_set_nt_username(sam_account, nt_username, PDB_CHANGED)) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_username(sam_account, nt_username, PDB_CHANGED)) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_domain(sam_account, nt_domain, PDB_CHANGED)) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_user_sid(sam_account, &user_sid, PDB_CHANGED)) {
- TALLOC_FREE(result);
- return NT_STATUS_UNSUCCESSFUL;
- }
-
- if (!pdb_set_group_sid(sam_account, &group_sid, PDB_CHANGED)) {
- TALLOC_FREE(result);
- return NT_STATUS_UNSUCCESSFUL;
- }
-
- if (!pdb_set_fullname(sam_account, info->full_name, PDB_CHANGED)) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_logon_script(sam_account, info->logon_script, PDB_CHANGED)) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_profile_path(sam_account, info->profile_path, PDB_CHANGED)) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_homedir(sam_account, info->home_directory, PDB_CHANGED)) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_dir_drive(sam_account, info->home_drive, PDB_CHANGED)) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_acct_ctrl(sam_account, info->acct_flags, PDB_CHANGED)) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_pass_last_set_time(
- sam_account,
- nt_time_to_unix(info->pass_last_set_time),
- PDB_CHANGED)) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_pass_can_change_time(
- sam_account,
- nt_time_to_unix(info->pass_can_change_time),
- PDB_CHANGED)) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- if (!pdb_set_pass_must_change_time(
- sam_account,
- nt_time_to_unix(info->pass_must_change_time),
- PDB_CHANGED)) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- /* save this here to _net_sam_logon() doesn't fail (it assumes a
- valid struct samu) */
-
- result->sam_account = sam_account;
- result->unix_name = talloc_strdup(result, found_username);
-
- result->sanitized_username = sanitize_username(result,
- result->unix_name);
- result->login_server = talloc_strdup(result, info->logon_server);
-
- if ((result->unix_name == NULL)
- || (result->sanitized_username == NULL)
- || (result->login_server == NULL)) {
- TALLOC_FREE(result);
+ info3 = wbcAuthUserInfo_to_netr_SamInfo3(mem_ctx, info);
+ if (!info3) {
return NT_STATUS_NO_MEMORY;
}
- /* Fill in the unix info we found on the way */
-
- result->utok.uid = uid;
- result->utok.gid = gid;
-
- /* Create a 'combined' list of all SIDs we might want in the SD */
-
- result->num_sids = info->num_sids - 2;
- result->sids = talloc_array(result, DOM_SID, result->num_sids);
- if (result->sids == NULL) {
- TALLOC_FREE(result);
- return NT_STATUS_NO_MEMORY;
- }
-
- for (i=0; i < result->num_sids; i++) {
- memcpy(&result->sids[i], &info->sids[i+2].sid, sizeof(result->sids[i]));
- }
-
- /* Ensure the primary group sid is at position 0. */
- sort_sid_array_for_smbd(result, &group_sid);
-
- /* ensure we are never given NULL session keys */
-
- ZERO_STRUCT(zeros);
-
- if (memcmp(info->user_session_key, zeros, sizeof(zeros)) == 0) {
- result->user_session_key = data_blob_null;
- } else {
- result->user_session_key = data_blob_talloc(
- result, info->user_session_key,
- sizeof(info->user_session_key));
- }
-
- if (memcmp(info->lm_session_key, zeros, 8) == 0) {
- result->lm_session_key = data_blob_null;
- } else {
- result->lm_session_key = data_blob_talloc(
- result, info->lm_session_key,
- sizeof(info->lm_session_key));
- }
-
- result->nss_token |= username_was_mapped;
-
- *server_info = result;
-
- 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) {
- DEBUG(10,("structure was created for %s\n",
- (*user_info)->smb_name));
- }
- SAFE_FREE((*user_info)->smb_name);
- SAFE_FREE((*user_info)->internal_username);
- SAFE_FREE((*user_info)->client_domain);
- SAFE_FREE((*user_info)->domain);
- SAFE_FREE((*user_info)->wksta_name);
- 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);
-}
-
-/***************************************************************************
- 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;
+ return make_server_info_info3(mem_ctx,
+ sent_nt_username, domain,
+ server_info, info3);
}
/**
* 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
+ * @return true if domain is one of the trusted ones or
* false if otherwise
**/
bool is_trusted_domain(const char* dom_name)
{
- DOM_SID trustdom_sid;
+ struct dom_sid trustdom_sid;
bool ret;
/* no trusted domains for a standalone server */
if ( lp_server_role() == ROLE_STANDALONE )
return False;
+ if (dom_name == NULL || dom_name[0] == '\0') {
+ return false;
+ }
+
+ if (strequal(dom_name, get_global_sam_name())) {
+ return false;
+ }
+
/* if we are a DC, then check for a direct trust relationships */
if ( IS_DC ) {
/* The only other possible result is that winbind is not up
and running. We need to update the trustdom_cache
ourselves */
-
+
update_trustdom_cache();
}