-/*
+/*
Unix SMB/CIFS implementation.
Authentication utility functions
Copyright (C) Andrew Tridgell 1992-1998
Create a UNIX user on demand.
****************************************************************************/
-static int smb_create_user(const char *unix_user, const char *homedir)
+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_user, sizeof(pstring));
+ 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);
/****************************************************************************
Add and Delete UNIX users on demand, based on NTSTATUS codes.
+ We don't care about RID's here so ignore.
****************************************************************************/
-void smb_user_control(const auth_usersupplied_info *user_info, auth_serversupplied_info *server_info, NTSTATUS nt_status)
+void auth_add_user_script(const char *domain, const char *username)
{
- struct passwd *pwd=NULL;
+ uint32 rid;
+ /*
+ * User validated ok against Domain controller.
+ * If the admin wants us to try and create a UNIX
+ * user on the fly, do so.
+ */
+
+ if ( *lp_adduser_script() )
+ smb_create_user(domain, username, NULL);
+ else {
+ DEBUG(10,("auth_add_user_script: no 'add user script'. Asking winbindd\n"));
+
+ /* should never get here is we a re a domain member running winbindd
+ However, a host set for 'security = server' might run winbindd for
+ account allocation */
+
+ if ( !winbind_create_user(username, NULL) ) {
+ DEBUG(5,("auth_add_user_script: winbindd_create_user() failed\n"));
+ rid = 0;
+ }
+ }
+}
- if (NT_STATUS_IS_OK(nt_status)) {
+/****************************************************************************
+ Create a SAM_ACCOUNT - either by looking in the pdb, or by faking it up from
+ unix info.
+****************************************************************************/
- if (!(server_info->sam_fill_level & SAM_FILL_UNIX)) {
-
- /*
- * User validated ok against Domain controller.
- * If the admin wants us to try and create a UNIX
- * user on the fly, do so.
- */
-
- if(lp_adduser_script() && !(pwd = Get_Pwnam(user_info->internal_username.str))) {
- smb_create_user(user_info->internal_username.str, NULL);
- }
+NTSTATUS auth_get_sam_account(const char *user, SAM_ACCOUNT **account)
+{
+ BOOL pdb_ret;
+ NTSTATUS nt_status;
+ if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(account))) {
+ return nt_status;
+ }
+
+ become_root();
+ pdb_ret = pdb_getsampwnam(*account, user);
+ unbecome_root();
+
+ if (!pdb_ret) {
+
+ struct passwd *pass = Get_Pwnam(user);
+ if (!pass)
+ return NT_STATUS_NO_SUCH_USER;
+
+ if (!NT_STATUS_IS_OK(nt_status = pdb_fill_sam_pw(*account, pass))) {
+ return nt_status;
}
}
+ return NT_STATUS_OK;
}
/****************************************************************************
*user_info = malloc(sizeof(**user_info));
if (!user_info) {
- DEBUG(0,("malloc failed for user_info (size %d)\n", sizeof(*user_info)));
+ DEBUG(0,("malloc failed for user_info (size %lu)\n", (unsigned long)sizeof(*user_info)));
return NT_STATUS_NO_MEMORY;
}
DEBUG(5, ("make_user_info_map: Mapping user [%s]\\[%s] from workstation [%s]\n",
client_domain, smb_name, wksta_name));
- if (lp_allow_trusted_domains() && *client_domain) {
-
- /* the client could have given us a workstation name
- or other crap for the workgroup - we really need a
- way of telling if this domain name is one of our
- trusted domain names
-
- Also don't allow "" as a domain, fixes a Win9X bug
- where it doens't supply a domain for logon script
- 'net use' commands.
-
- The way I do it here is by checking if the fully
- qualified username exists. This is rather reliant
- on winbind, but until we have a better method this
- will have to do
- */
+ /* 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();
- if ((smb_name) && (*smb_name)) { /* Don't do this for guests */
- char *user = NULL;
- if (asprintf(&user, "%s%s%s",
- client_domain, lp_winbind_separator(),
- smb_name) < 0) {
- DEBUG(0, ("make_user_info_map: asprintf() failed!\n"));
- return NT_STATUS_NO_MEMORY;
- }
+ /* do what win2k does. Always map unknown domains to our own
+ and let the "passdb backend" handle unknown users. */
- DEBUG(5, ("make_user_info_map: testing for user %s\n", user));
-
- if (Get_Pwnam(user) == NULL) {
- DEBUG(5, ("make_user_info_map: test for user %s failed\n", user));
- domain = lp_workgroup();
- DEBUG(5, ("make_user_info_map: trusted domain %s doesn't appear to exist, using %s\n",
- client_domain, domain));
- } else {
- DEBUG(5, ("make_user_info_map: using trusted domain %s\n", domain));
- }
- SAFE_FREE(user);
- }
- } else {
- domain = lp_workgroup();
- }
+ if ( !is_trusted_domain(domain) && !strequal(domain, get_global_sam_name()) )
+ domain = get_default_sam_name();
- return make_user_info(user_info,
- smb_name, internal_username,
- client_domain, domain,
- wksta_name,
- lm_pwd, nt_pwd,
- plaintext,
- ntlmssp_flags, encrypted);
+ /* 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,
+ plaintext, ntlmssp_flags, encrypted);
}
/****************************************************************************
dump_data(100, plaintext_password.data, plaintext_password.length);
#endif
- SMBencrypt( (const uchar *)plaintext_password.data, (const uchar*)chal, local_lm_response);
+ 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
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 %i SIDs\n", token->num_sids));
+ 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[%3i]: %s\n", i,
+ DEBUGADDC(dbg_class, dbg_lev, ("SID[%3lu]: %s\n", (unsigned long)i,
sid_to_string(sid_str, &token->user_sids[i])));
}
NT_USER_TOKEN *token;
int i;
- if (!uid_to_sid(&user_sid, uid)) {
+ if (!NT_STATUS_IS_OK(uid_to_sid(&user_sid, uid))) {
return NULL;
}
- if (!gid_to_sid(&group_sid, gid)) {
+ if (!NT_STATUS_IS_OK(gid_to_sid(&group_sid, gid))) {
return NULL;
}
- group_sids = malloc(sizeof(DOM_SID) * ngroups);
+ group_sids = malloc(sizeof(DOM_SID) * ngroups);
if (!group_sids) {
DEBUG(0, ("create_nt_token: malloc() failed for DOM_SID list!\n"));
return NULL;
}
for (i = 0; i < ngroups; i++) {
- if (!gid_to_sid(&(group_sids)[i], (groups)[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;
return token;
}
+static void add_gid_to_array_unique(gid_t gid, gid_t **groups, int *ngroups)
+{
+ int i;
+
+ if ((*ngroups) >= groups_max())
+ return;
+
+ for (i=0; i<*ngroups; i++) {
+ if ((*groups)[i] == gid)
+ return;
+ }
+
+ *groups = Realloc(*groups, ((*ngroups)+1) * sizeof(gid_t));
+
+ if (*groups == NULL)
+ return;
+
+ (*groups)[*ngroups] = gid;
+ *ngroups += 1;
+}
+
+static void add_foreign_gids_from_sid(const DOM_SID *sid, gid_t **groups,
+ int *ngroups)
+{
+ DOM_SID *aliases;
+ int j, num_aliases;
+
+ if (!pdb_enum_alias_memberships(sid, &aliases, &num_aliases))
+ return;
+
+ for (j=0; j<num_aliases; j++) {
+ gid_t gid;
+
+ if (!NT_STATUS_IS_OK(sid_to_gid(&aliases[j], &gid)))
+ continue;
+
+ add_gid_to_array_unique(gid, groups, ngroups);
+ }
+ SAFE_FREE(aliases);
+}
+
+static void add_foreign_gids(uid_t uid, gid_t gid,
+ gid_t **groups, int *ngroups)
+{
+ int i, dom_groups;
+ DOM_SID sid;
+
+ if (NT_STATUS_IS_OK(uid_to_sid(&sid, uid)))
+ add_foreign_gids_from_sid(&sid, groups, ngroups);
+
+ if (NT_STATUS_IS_OK(gid_to_sid(&sid, gid)))
+ add_foreign_gids_from_sid(&sid, groups, ngroups);
+
+ dom_groups = *ngroups;
+
+ for (i=0; i<dom_groups; i++) {
+
+ if (!NT_STATUS_IS_OK(gid_to_sid(&sid, (*groups)[i])))
+ continue;
+
+ add_foreign_gids_from_sid(&sid, groups, ngroups);
+ }
+}
+
/******************************************************************************
* 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.
+ * 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_from_local_sam(const DOM_SID *user_sid,
- int *n_groups, DOM_SID **groups, gid_t **unix_groups)
+static NTSTATUS get_user_groups(const char *username, uid_t uid, gid_t gid,
+ int *n_groups, DOM_SID **groups, gid_t **unix_groups)
{
- uid_t uid;
- enum SID_NAME_USE snu;
- fstring str;
- int n_unix_groups;
- int i;
- struct passwd *usr;
-
+ int n_unix_groups;
+ int i;
+
*n_groups = 0;
*groups = NULL;
- if (!sid_to_uid(user_sid, &uid, &snu)) {
- DEBUG(2, ("get_user_groups_from_local_sam: Failed to convert user SID %s to a uid!\n",
- sid_to_string(str, user_sid)));
- /* This might be a non-unix account */
- return NT_STATUS_OK;
- }
+ /* Try winbind first */
- /*
- * This is _essential_ to prevent occasional segfaults when
- * winbind can't find uid -> username mapping
- */
- if (!(usr = getpwuid_alloc(uid))) {
- DEBUG(0, ("Couldn't find passdb structure for UID = %d ! Aborting.\n", uid));
- return NT_STATUS_NO_SUCH_USER;
- };
-
- n_unix_groups = groups_max();
- if ((*unix_groups = malloc( sizeof(gid_t) * groups_max() ) ) == NULL) {
- DEBUG(0, ("get_user_groups_from_local_sam: Out of memory allocating unix group list\n"));
- passwd_free(&usr);
- return NT_STATUS_NO_MEMORY;
+ if ( strchr(username, *lp_winbind_separator()) ) {
+ 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? */
}
+ else {
+ /* fallback to getgrouplist() */
+
+ n_unix_groups = groups_max();
+
+ if ((*unix_groups = malloc( sizeof(gid_t) * n_unix_groups ) ) == NULL) {
+ DEBUG(0, ("get_user_groups: Out of memory allocating unix group list\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
- if (sys_getgrouplist(usr->pw_name, usr->pw_gid, *unix_groups, &n_unix_groups) == -1) {
- *unix_groups = Realloc(unix_groups, sizeof(gid_t) * n_unix_groups);
- if (sys_getgrouplist(usr->pw_name, usr->pw_gid, *unix_groups, &n_unix_groups) == -1) {
- DEBUG(0, ("get_user_groups_from_local_sam: failed to get the unix group list\n"));
- SAFE_FREE(unix_groups);
- passwd_free(&usr);
- return NT_STATUS_NO_SUCH_USER; /* what should this return value be? */
+ if (sys_getgrouplist(username, gid, *unix_groups, &n_unix_groups) == -1) {
+
+ gid_t *groups_tmp;
+
+ groups_tmp = Realloc(*unix_groups, sizeof(gid_t) * n_unix_groups);
+
+ if (!groups_tmp) {
+ SAFE_FREE(*unix_groups);
+ return NT_STATUS_NO_MEMORY;
+ }
+ *unix_groups = groups_tmp;
+
+ if (sys_getgrouplist(username, gid, *unix_groups, &n_unix_groups) == -1) {
+ DEBUG(0, ("get_user_groups: failed to get the unix group list\n"));
+ SAFE_FREE(*unix_groups);
+ return NT_STATUS_NO_SUCH_USER; /* what should this return value be? */
+ }
}
}
- debug_unix_user_token(DBGC_CLASS, 5, usr->pw_uid, usr->pw_gid, n_unix_groups, *unix_groups);
+ add_foreign_gids(uid, gid, unix_groups, &n_unix_groups);
- passwd_free(&usr);
+ 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 = malloc(sizeof(DOM_SID) * n_unix_groups);
+
if (!*groups) {
- DEBUG(0, ("get_user_group_from_local_sam: malloc() failed for DOM_SID list!\n"));
- SAFE_FREE(unix_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 (!gid_to_sid(&(*groups)[i], (*unix_groups)[i])) {
- DEBUG(1, ("get_user_groups_from_local_sam: failed to convert gid %ld to a sid!\n", (long int)unix_groups[i+1]));
- SAFE_FREE(groups);
- SAFE_FREE(unix_groups);
+ 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;
}
}
Make a user_info struct
***************************************************************************/
-static NTSTATUS make_server_info(auth_serversupplied_info **server_info, SAM_ACCOUNT *sampass)
+static NTSTATUS make_server_info(auth_serversupplied_info **server_info)
{
*server_info = malloc(sizeof(**server_info));
if (!*server_info) {
}
ZERO_STRUCTP(*server_info);
- (*server_info)->sam_fill_level = SAM_FILL_ALL;
- (*server_info)->sam_account = sampass;
+ /* 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;
}
/***************************************************************************
- Make (and fill) a user_info struct from a SAM_ACCOUNT
+Fill a server_info struct from a SAM_ACCOUNT with their groups
***************************************************************************/
-NTSTATUS make_server_info_sam(auth_serversupplied_info **server_info,
- SAM_ACCOUNT *sampass)
+static NTSTATUS add_user_groups(auth_serversupplied_info **server_info,
+ SAM_ACCOUNT *sampass,
+ uid_t uid, gid_t gid)
{
- NTSTATUS nt_status = NT_STATUS_OK;
+ NTSTATUS nt_status;
const DOM_SID *user_sid = pdb_get_user_sid(sampass);
const DOM_SID *group_sid = pdb_get_group_sid(sampass);
int n_groupSIDs = 0;
BOOL is_guest;
uint32 rid;
- if (!NT_STATUS_IS_OK(nt_status = make_server_info(server_info, sampass))) {
- return nt_status;
- }
-
- if (!NT_STATUS_IS_OK(nt_status
- = get_user_groups_from_local_sam(pdb_get_user_sid(sampass),
- &n_groupSIDs, &groupSIDs, &unix_groups)))
- {
+ nt_status = get_user_groups(pdb_get_username(sampass), 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;
(*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;
- DEBUG(5,("make_server_info_sam: made server info for user %s\n",
- pdb_get_username((*server_info)->sam_account)));
+ passwd_free(&pwd);
+
+ if (!NT_STATUS_IS_OK(nt_status = add_user_groups(server_info, 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;
}
if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_pw(&sampass, pwd))) {
return nt_status;
}
- return make_server_info_sam(server_info, sampass);
+ 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, sampass, pwd->pw_uid, pwd->pw_gid))) {
+ return nt_status;
+ }
+
+ (*server_info)->unix_name = smb_xstrdup(pwd->pw_name);
+
+ (*server_info)->sam_fill_level = SAM_FILL_ALL;
+ (*server_info)->uid = pwd->pw_uid;
+ (*server_info)->gid = pwd->pw_gid;
+ return nt_status;
}
/***************************************************************************
nt_status = make_server_info_sam(server_info, sampass);
- (*server_info)->guest = True;
+ 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)->nt_session_key = data_blob(zeros, sizeof(zeros));
+ (*server_info)->lm_session_key = data_blob(zeros, sizeof(zeros));
+ }
return nt_status;
}
+/***************************************************************************
+ 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)
+{
+ fstring dom_user;
+ struct passwd *passwd;
+
+ fstr_sprintf(dom_user, "%s%s%s", domain, lp_winbind_separator(),
+ username);
+
+ passwd = Get_Pwnam(dom_user);
+
+ if ( passwd ) {
+ char *p;
+
+ /* make sure we get the case of the username correct */
+ /* work around 'winbind use default domain = yes' */
+
+ p = strchr( passwd->pw_name, *lp_winbind_separator() );
+ if ( !p )
+ fstr_sprintf(dom_user, "%s%s%s", domain,
+ lp_winbind_separator(), passwd->pw_name);
+ else
+ fstrcpy( dom_user, passwd->pw_name );
+ }
+ else {
+ /* if the lookup for DOMAIN\username failed, try again
+ with just 'username'. This is need for accessing the server
+ as a trust user that actually maps to a local account */
+
+ fstrcpy( dom_user, username );
+ passwd = Get_Pwnam( dom_user );
+
+ /* make sure we get the case of the username correct */
+ if ( passwd )
+ fstrcpy( dom_user, passwd->pw_name );
+ }
+
+ if ( !passwd )
+ return NT_STATUS_NO_SUCH_USER;
+
+ *uid = passwd->pw_uid;
+ *gid = passwd->pw_gid;
+
+ /* This is pointless -- there is no suport for differeing
+ 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, dom_user);
+
+ DEBUG(5,("fill_sam_account: located username was [%s]\n",
+ *found_username));
+
+ return pdb_init_sam_pw(sam_account, passwd);
+}
+
+/****************************************************************************
+ 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 )
+{
+ struct passwd *pw = NULL;
+ char *p;
+ fstring mapped_username;
+
+ pw = Get_Pwnam( domuser );
+ if ( pw )
+ return pw;
+
+ /* fallback to looking up just the username */
+
+ p = strchr( domuser, *lp_winbind_separator() );
+
+ if ( p ) {
+ p += 1;
+ fstrcpy( mapped_username, p );
+ map_username( mapped_username );
+ pw = Get_Pwnam(mapped_username);
+ if (!pw) {
+ /* Don't add a machine account. */
+ if (mapped_username[strlen(mapped_username)-1] == '$')
+ return NULL;
+
+ /* Create local user if requested. */
+ p = strchr( mapped_username, *lp_winbind_separator() );
+ if (p)
+ p += 1;
+ else
+ p = mapped_username;
+ auth_add_user_script(NULL, p);
+ return Get_Pwnam(p);
+ }
+ }
+
+ return pw;
+}
+
/***************************************************************************
Make a server_info struct from the info3 returned by a domain logon
***************************************************************************/
auth_serversupplied_info **server_info,
NET_USER_INFO_3 *info3)
{
- NTSTATUS nt_status = NT_STATUS_OK;
+ static const char zeros[16];
+ NTSTATUS nt_status = NT_STATUS_OK;
+ char *found_username;
const char *nt_domain;
const char *nt_username;
DOM_SID user_sid;
DOM_SID group_sid;
- struct passwd *passwd;
-
uid_t uid;
gid_t gid;
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 */
- domain = domain;
+ nt_domain = domain;
}
-
- if (winbind_sid_to_uid(&uid, &user_sid)
- && winbind_sid_to_gid(&gid, &group_sid)
- && ((passwd = getpwuid_alloc(uid)))) {
- nt_status = pdb_init_sam_pw(&sam_account, passwd);
- passwd_free(&passwd);
- } else {
- char *dom_user;
- dom_user = talloc_asprintf(mem_ctx, "%s%s%s",
- nt_domain,
- lp_winbind_separator(),
- internal_username);
-
- if (!dom_user) {
- DEBUG(0, ("talloc_asprintf failed!\n"));
- return NT_STATUS_NO_MEMORY;
- } else {
-
- if (!(passwd = Get_Pwnam(dom_user))
- /* Only lookup local for the local
- domain, we don't want this for
- trusted domains */
- && strequal(nt_domain, lp_workgroup())) {
- passwd = Get_Pwnam(internal_username);
- }
-
- if (!passwd) {
- return NT_STATUS_NO_SUCH_USER;
- } else {
- nt_status = pdb_init_sam_pw(&sam_account, passwd);
- }
- }
+
+ /* try to fill the SAM account.. If getpwnam() fails, then try the
+ add user script (2.2.x behavior) */
+
+ nt_status = fill_sam_account(mem_ctx, nt_domain, internal_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));
+ auth_add_user_script(nt_domain, internal_username);
+ nt_status = fill_sam_account(mem_ctx, nt_domain,
+ internal_username, &found_username,
+ &uid, &gid, &sam_account);
}
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
- if (!pdb_set_user_sid(sam_account, &user_sid, PDB_CHANGED)) {
+ if (!pdb_set_nt_username(sam_account, nt_username, PDB_CHANGED)) {
pdb_free_sam(&sam_account);
- return NT_STATUS_UNSUCCESSFUL;
+ return NT_STATUS_NO_MEMORY;
}
- if (!pdb_set_group_sid(sam_account, &group_sid, PDB_CHANGED)) {
- pdb_free_sam(&sam_account);
- return NT_STATUS_UNSUCCESSFUL;
- }
-
- if (!pdb_set_nt_username(sam_account, nt_username, PDB_CHANGED)) {
+ if (!pdb_set_username(sam_account, nt_username, PDB_CHANGED)) {
pdb_free_sam(&sam_account);
return NT_STATUS_NO_MEMORY;
}
return NT_STATUS_NO_MEMORY;
}
- if (!pdb_set_fullname(sam_account, unistr2_static(&(info3->uni_full_name)), PDB_CHANGED)) {
+ 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;
}
return NT_STATUS_NO_MEMORY;
}
- if (!NT_STATUS_IS_OK(nt_status = make_server_info(server_info, sam_account))) {
+ 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. */
- if (!NT_STATUS_IS_OK(nt_status
- = get_user_groups_from_local_sam(&user_sid,
- &n_lgroupSIDs,
- &lgroupSIDs,
- &unix_groups)))
- {
- DEBUG(4,("get_user_groups_from_local_sam failed\n"));
+ 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)->n_groups = n_lgroupSIDs;
/* Create a 'combined' list of all SIDs we might want in the SD */
- all_group_SIDs = malloc(sizeof(DOM_SID) *
- (n_lgroupSIDs + info3->num_groups2 +
- info3->num_other_sids));
+
+ all_group_SIDs = malloc(sizeof(DOM_SID) * (info3->num_groups2 +info3->num_other_sids));
+
if (!all_group_SIDs) {
- DEBUG(0, ("create_nt_token_info3: malloc() failed for DOM_SID list!\n"));
+ DEBUG(0, ("malloc() failed for DOM_SID list!\n"));
SAFE_FREE(lgroupSIDs);
+ free_server_info(server_info);
return NT_STATUS_NO_MEMORY;
}
+#if 0 /* JERRY -- no such thing as local groups in current code */
/* Copy the 'local' sids */
memcpy(all_group_SIDs, lgroupSIDs, sizeof(DOM_SID) * n_lgroupSIDs);
SAFE_FREE(lgroupSIDs);
+#endif
/* and create (by appending rids) the 'domain' sids */
+
for (i = 0; i < info3->num_groups2; i++) {
- sid_copy(&all_group_SIDs[i+n_lgroupSIDs], &(info3->dom_sid.sid));
- if (!sid_append_rid(&all_group_SIDs[i+n_lgroupSIDs], info3->gids[i].g_rid)) {
+
+ 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,("create_nt_token_info3: could not append additional group rid 0x%x\n",
+
+ DEBUG(3,("could not append additional group rid 0x%x\n",
info3->gids[i].g_rid));
+
SAFE_FREE(lgroupSIDs);
+ free_server_info(server_info);
+
return nt_status;
+
}
}
http://www.microsoft.com/windows2000/techinfo/administration/security/sidfilter.asp
*/
- for (i = 0; i < info3->num_other_sids; i++)
- sid_copy(&all_group_SIDs[
- n_lgroupSIDs + info3->num_groups2 + i],
+ for (i = 0; i < info3->num_other_sids; i++) {
+ sid_copy(&all_group_SIDs[info3->num_groups2 + i],
&info3->other_sids[i].sid);
+ }
/* Where are the 'global' sids... */
/* can the user be guest? if yes, where is it stored? */
- if (!NT_STATUS_IS_OK(
- nt_status = create_nt_user_token(
- &user_sid, &group_sid,
- n_lgroupSIDs + info3->num_groups2 + info3->num_other_sids,
- all_group_SIDs, False, &token))) {
+
+ nt_status = create_nt_user_token(&user_sid, &group_sid,
+ info3->num_groups2 + info3->num_other_sids,
+ all_group_SIDs, False, &token);
+
+ if ( !NT_STATUS_IS_OK(nt_status) ) {
DEBUG(4,("create_nt_user_token failed\n"));
SAFE_FREE(all_group_SIDs);
+ free_server_info(server_info);
return nt_status;
}
(*server_info)->ptok = token;
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)->nt_session_key = data_blob(NULL, 0);
+ } else {
+ (*server_info)->nt_session_key = data_blob(info3->user_sess_key, sizeof(info3->user_sess_key));
+ }
+
+ if (memcmp(info3->padding, zeros, sizeof(zeros)) == 0) {
+ (*server_info)->lm_session_key = data_blob(NULL, 0);
+ } else {
+ (*server_info)->lm_session_key = data_blob(info3->padding, 16);
+ }
return NT_STATUS_OK;
}
/* 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)->nt_session_key);
ZERO_STRUCT(**server_info);
}
SAFE_FREE(*server_info);
}
+/**
+ * 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 (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
+ become_root();
+ ret = secrets_fetch_trusted_domain_password(dom_name, &pass, &trustdom_sid, &lct);
+ unbecome_root();
+ SAFE_FREE(pass);
+ if (ret)
+ return True;
+ }
+ else {
+ /* if winbindd is not up and we are a domain member) then we need to update the
+ trustdom_cache ourselves */
+
+ if ( !winbind_ping() )
+ 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;
+}
git.samba.org / nivanova / samba-autobuild / .git / blobdiff